Commit | Line | Data |
---|---|---|
55682965 JB |
1 | /* |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
026331c4 | 4 | * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
2740f0cf | 5 | * Copyright 2013-2014 Intel Mobile Communications GmbH |
7bdbe400 | 6 | * Copyright 2015 Intel Deutschland GmbH |
55682965 JB |
7 | */ |
8 | ||
9 | #include <linux/if.h> | |
10 | #include <linux/module.h> | |
11 | #include <linux/err.h> | |
5a0e3ad6 | 12 | #include <linux/slab.h> |
55682965 JB |
13 | #include <linux/list.h> |
14 | #include <linux/if_ether.h> | |
15 | #include <linux/ieee80211.h> | |
16 | #include <linux/nl80211.h> | |
17 | #include <linux/rtnetlink.h> | |
18 | #include <linux/netlink.h> | |
2a519311 | 19 | #include <linux/etherdevice.h> |
463d0183 | 20 | #include <net/net_namespace.h> |
55682965 JB |
21 | #include <net/genetlink.h> |
22 | #include <net/cfg80211.h> | |
463d0183 | 23 | #include <net/sock.h> |
2a0e047e | 24 | #include <net/inet_connection_sock.h> |
55682965 JB |
25 | #include "core.h" |
26 | #include "nl80211.h" | |
b2e1b302 | 27 | #include "reg.h" |
e35e4d28 | 28 | #include "rdev-ops.h" |
55682965 | 29 | |
5fb628e9 JM |
30 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
31 | struct genl_info *info, | |
32 | struct cfg80211_crypto_settings *settings, | |
33 | int cipher_limit); | |
34 | ||
f84f771d | 35 | static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, |
4c476991 | 36 | struct genl_info *info); |
f84f771d | 37 | static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb, |
4c476991 JB |
38 | struct genl_info *info); |
39 | ||
55682965 JB |
40 | /* the netlink family */ |
41 | static struct genl_family nl80211_fam = { | |
fb4e1568 MH |
42 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ |
43 | .name = NL80211_GENL_NAME, /* have users key off the name instead */ | |
44 | .hdrsize = 0, /* no private header */ | |
45 | .version = 1, /* no particular meaning now */ | |
55682965 | 46 | .maxattr = NL80211_ATTR_MAX, |
463d0183 | 47 | .netnsok = true, |
4c476991 JB |
48 | .pre_doit = nl80211_pre_doit, |
49 | .post_doit = nl80211_post_doit, | |
55682965 JB |
50 | }; |
51 | ||
2a94fe48 JB |
52 | /* multicast groups */ |
53 | enum nl80211_multicast_groups { | |
54 | NL80211_MCGRP_CONFIG, | |
55 | NL80211_MCGRP_SCAN, | |
56 | NL80211_MCGRP_REGULATORY, | |
57 | NL80211_MCGRP_MLME, | |
567ffc35 | 58 | NL80211_MCGRP_VENDOR, |
2a94fe48 JB |
59 | NL80211_MCGRP_TESTMODE /* keep last - ifdef! */ |
60 | }; | |
61 | ||
62 | static const struct genl_multicast_group nl80211_mcgrps[] = { | |
71b836ec JB |
63 | [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG }, |
64 | [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN }, | |
65 | [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG }, | |
66 | [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME }, | |
67 | [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR }, | |
2a94fe48 | 68 | #ifdef CONFIG_NL80211_TESTMODE |
71b836ec | 69 | [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE } |
2a94fe48 JB |
70 | #endif |
71 | }; | |
72 | ||
89a54e48 JB |
73 | /* returns ERR_PTR values */ |
74 | static struct wireless_dev * | |
75 | __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs) | |
55682965 | 76 | { |
89a54e48 JB |
77 | struct cfg80211_registered_device *rdev; |
78 | struct wireless_dev *result = NULL; | |
79 | bool have_ifidx = attrs[NL80211_ATTR_IFINDEX]; | |
80 | bool have_wdev_id = attrs[NL80211_ATTR_WDEV]; | |
81 | u64 wdev_id; | |
82 | int wiphy_idx = -1; | |
83 | int ifidx = -1; | |
55682965 | 84 | |
5fe231e8 | 85 | ASSERT_RTNL(); |
55682965 | 86 | |
89a54e48 JB |
87 | if (!have_ifidx && !have_wdev_id) |
88 | return ERR_PTR(-EINVAL); | |
55682965 | 89 | |
89a54e48 JB |
90 | if (have_ifidx) |
91 | ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
92 | if (have_wdev_id) { | |
93 | wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
94 | wiphy_idx = wdev_id >> 32; | |
55682965 JB |
95 | } |
96 | ||
89a54e48 JB |
97 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
98 | struct wireless_dev *wdev; | |
99 | ||
100 | if (wiphy_net(&rdev->wiphy) != netns) | |
101 | continue; | |
102 | ||
103 | if (have_wdev_id && rdev->wiphy_idx != wiphy_idx) | |
104 | continue; | |
105 | ||
89a54e48 JB |
106 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
107 | if (have_ifidx && wdev->netdev && | |
108 | wdev->netdev->ifindex == ifidx) { | |
109 | result = wdev; | |
110 | break; | |
111 | } | |
112 | if (have_wdev_id && wdev->identifier == (u32)wdev_id) { | |
113 | result = wdev; | |
114 | break; | |
115 | } | |
116 | } | |
89a54e48 JB |
117 | |
118 | if (result) | |
119 | break; | |
120 | } | |
121 | ||
122 | if (result) | |
123 | return result; | |
124 | return ERR_PTR(-ENODEV); | |
55682965 JB |
125 | } |
126 | ||
a9455408 | 127 | static struct cfg80211_registered_device * |
878d9ec7 | 128 | __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs) |
a9455408 | 129 | { |
7fee4778 JB |
130 | struct cfg80211_registered_device *rdev = NULL, *tmp; |
131 | struct net_device *netdev; | |
a9455408 | 132 | |
5fe231e8 | 133 | ASSERT_RTNL(); |
a9455408 | 134 | |
878d9ec7 | 135 | if (!attrs[NL80211_ATTR_WIPHY] && |
89a54e48 JB |
136 | !attrs[NL80211_ATTR_IFINDEX] && |
137 | !attrs[NL80211_ATTR_WDEV]) | |
7fee4778 JB |
138 | return ERR_PTR(-EINVAL); |
139 | ||
878d9ec7 | 140 | if (attrs[NL80211_ATTR_WIPHY]) |
7fee4778 | 141 | rdev = cfg80211_rdev_by_wiphy_idx( |
878d9ec7 | 142 | nla_get_u32(attrs[NL80211_ATTR_WIPHY])); |
a9455408 | 143 | |
89a54e48 JB |
144 | if (attrs[NL80211_ATTR_WDEV]) { |
145 | u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
146 | struct wireless_dev *wdev; | |
147 | bool found = false; | |
148 | ||
149 | tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32); | |
150 | if (tmp) { | |
151 | /* make sure wdev exists */ | |
89a54e48 JB |
152 | list_for_each_entry(wdev, &tmp->wdev_list, list) { |
153 | if (wdev->identifier != (u32)wdev_id) | |
154 | continue; | |
155 | found = true; | |
156 | break; | |
157 | } | |
89a54e48 JB |
158 | |
159 | if (!found) | |
160 | tmp = NULL; | |
161 | ||
162 | if (rdev && tmp != rdev) | |
163 | return ERR_PTR(-EINVAL); | |
164 | rdev = tmp; | |
165 | } | |
166 | } | |
167 | ||
878d9ec7 JB |
168 | if (attrs[NL80211_ATTR_IFINDEX]) { |
169 | int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
7f2b8562 | 170 | netdev = __dev_get_by_index(netns, ifindex); |
7fee4778 JB |
171 | if (netdev) { |
172 | if (netdev->ieee80211_ptr) | |
f26cbf40 ZG |
173 | tmp = wiphy_to_rdev( |
174 | netdev->ieee80211_ptr->wiphy); | |
7fee4778 JB |
175 | else |
176 | tmp = NULL; | |
177 | ||
7fee4778 JB |
178 | /* not wireless device -- return error */ |
179 | if (!tmp) | |
180 | return ERR_PTR(-EINVAL); | |
181 | ||
182 | /* mismatch -- return error */ | |
183 | if (rdev && tmp != rdev) | |
184 | return ERR_PTR(-EINVAL); | |
185 | ||
186 | rdev = tmp; | |
a9455408 | 187 | } |
a9455408 | 188 | } |
a9455408 | 189 | |
4f7eff10 JB |
190 | if (!rdev) |
191 | return ERR_PTR(-ENODEV); | |
a9455408 | 192 | |
4f7eff10 JB |
193 | if (netns != wiphy_net(&rdev->wiphy)) |
194 | return ERR_PTR(-ENODEV); | |
195 | ||
196 | return rdev; | |
a9455408 JB |
197 | } |
198 | ||
199 | /* | |
200 | * This function returns a pointer to the driver | |
201 | * that the genl_info item that is passed refers to. | |
a9455408 JB |
202 | * |
203 | * The result of this can be a PTR_ERR and hence must | |
204 | * be checked with IS_ERR() for errors. | |
205 | */ | |
206 | static struct cfg80211_registered_device * | |
4f7eff10 | 207 | cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info) |
a9455408 | 208 | { |
5fe231e8 | 209 | return __cfg80211_rdev_from_attrs(netns, info->attrs); |
a9455408 JB |
210 | } |
211 | ||
55682965 | 212 | /* policy for the attributes */ |
8cd4d456 | 213 | static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { |
55682965 JB |
214 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
215 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 216 | .len = 20-1 }, |
31888487 | 217 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
3d9d1d66 | 218 | |
72bdcf34 | 219 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 220 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
3d9d1d66 JB |
221 | [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 }, |
222 | [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 }, | |
223 | [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 }, | |
224 | ||
b9a5f8ca JM |
225 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
226 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
227 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
228 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 229 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
3057dbfd | 230 | [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG }, |
55682965 JB |
231 | |
232 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
233 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
234 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f | 235 | |
e007b857 EP |
236 | [NL80211_ATTR_MAC] = { .len = ETH_ALEN }, |
237 | [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN }, | |
41ade00f | 238 | |
b9454e83 | 239 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
240 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
241 | .len = WLAN_MAX_KEY_LEN }, | |
242 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
243 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
244 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
81962267 | 245 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
e31b8213 | 246 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, |
ed1b6cc7 JB |
247 | |
248 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
249 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
250 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
251 | .len = IEEE80211_MAX_DATA_LEN }, | |
252 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
253 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
254 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
255 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
256 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
257 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
258 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 259 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 260 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 261 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 | 262 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
a4f606ea | 263 | .len = IEEE80211_MAX_MESH_ID_LEN }, |
2ec600d6 | 264 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, |
9f1ba906 | 265 | |
b2e1b302 LR |
266 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
267 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
268 | ||
9f1ba906 JM |
269 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
270 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
271 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
272 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
273 | .len = NL80211_MAX_SUPP_RATES }, | |
50b12f59 | 274 | [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, |
36aedc90 | 275 | |
24bdd9f4 | 276 | [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, |
15d5dda6 | 277 | [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG }, |
93da9cc1 | 278 | |
6c739419 | 279 | [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN }, |
9aed3cc1 JM |
280 | |
281 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
282 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
283 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
284 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
285 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
286 | |
287 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
288 | .len = IEEE80211_MAX_SSID_LEN }, | |
289 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
290 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 291 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 292 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 293 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
294 | [NL80211_ATTR_STA_FLAGS2] = { |
295 | .len = sizeof(struct nl80211_sta_flag_update), | |
296 | }, | |
3f77316c | 297 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
c0692b8f JB |
298 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
299 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
b23aa676 SO |
300 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
301 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
302 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 303 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 304 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
305 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
306 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
307 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
308 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 309 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
310 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
311 | .len = IEEE80211_MAX_DATA_LEN }, | |
312 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 313 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 314 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 315 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 316 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
98d2ff8b JO |
317 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, |
318 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 319 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
afe0cbf8 BR |
320 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, |
321 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, | |
885a46d0 | 322 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, |
f7ca38df | 323 | [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, |
dbd2fd65 | 324 | [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
ff1b6e69 | 325 | [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, |
9c3990aa | 326 | [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, |
bbe6ad6d | 327 | [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, |
e5497d76 | 328 | [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, |
34850ab2 | 329 | [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, |
32e9de84 | 330 | [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 }, |
9946ecfb JM |
331 | [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY, |
332 | .len = IEEE80211_MAX_DATA_LEN }, | |
333 | [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY, | |
334 | .len = IEEE80211_MAX_DATA_LEN }, | |
f4b34b55 | 335 | [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, |
a1f1c21c | 336 | [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, |
e9f935e3 | 337 | [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, |
109086ce AN |
338 | [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, |
339 | [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, | |
340 | [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, | |
341 | [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, | |
342 | [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, | |
31fa97c5 | 343 | [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG }, |
e247bd90 | 344 | [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, |
00f740e1 AN |
345 | [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, |
346 | .len = IEEE80211_MAX_DATA_LEN }, | |
8b60b078 | 347 | [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, |
7e7c8926 BG |
348 | [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, |
349 | [NL80211_ATTR_HT_CAPABILITY_MASK] = { | |
350 | .len = NL80211_HT_CAPABILITY_LEN | |
351 | }, | |
1d9d9213 | 352 | [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, |
1b658f11 | 353 | [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, |
4486ea98 | 354 | [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, |
89a54e48 | 355 | [NL80211_ATTR_WDEV] = { .type = NLA_U64 }, |
57b5ce07 | 356 | [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 }, |
e39e5b5e | 357 | [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, }, |
f461be3e | 358 | [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN }, |
ed473771 | 359 | [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 }, |
53cabad7 JB |
360 | [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 }, |
361 | [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 }, | |
77765eaf VT |
362 | [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 }, |
363 | [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED }, | |
9d62a986 JM |
364 | [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 }, |
365 | [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, }, | |
3713b4e3 | 366 | [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, }, |
ee2aca34 JB |
367 | [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG }, |
368 | [NL80211_ATTR_VHT_CAPABILITY_MASK] = { | |
369 | .len = NL80211_VHT_CAPABILITY_LEN, | |
370 | }, | |
355199e0 JM |
371 | [NL80211_ATTR_MDID] = { .type = NLA_U16 }, |
372 | [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY, | |
373 | .len = IEEE80211_MAX_DATA_LEN }, | |
5e4b6f56 | 374 | [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 }, |
16ef1fe2 SW |
375 | [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 }, |
376 | [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG }, | |
377 | [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED }, | |
9a774c78 AO |
378 | [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY }, |
379 | [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY }, | |
c01fc9ad SD |
380 | [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY }, |
381 | [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY }, | |
5336fa88 | 382 | [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG }, |
60f4a7b1 | 383 | [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 }, |
ad7e718c JB |
384 | [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 }, |
385 | [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 }, | |
386 | [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY }, | |
fa9ffc74 KP |
387 | [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY, |
388 | .len = IEEE80211_QOS_MAP_LEN_MAX }, | |
1df4a510 JM |
389 | [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN }, |
390 | [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 }, | |
df942e7b | 391 | [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 }, |
18e5ca65 | 392 | [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG }, |
34d22ce2 | 393 | [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY }, |
bab5ab7d | 394 | [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG }, |
960d01ac JB |
395 | [NL80211_ATTR_TSID] = { .type = NLA_U8 }, |
396 | [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 }, | |
397 | [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 }, | |
18998c38 | 398 | [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 }, |
ad2b26ab | 399 | [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN }, |
1bdd716c | 400 | [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG }, |
4b681c82 | 401 | [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 }, |
9c748934 | 402 | [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 }, |
05050753 | 403 | [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG }, |
55682965 JB |
404 | }; |
405 | ||
e31b8213 | 406 | /* policy for the key attributes */ |
b54452b0 | 407 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 408 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
409 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
410 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
81962267 | 411 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
b9454e83 JB |
412 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, |
413 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
e31b8213 | 414 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, |
dbd2fd65 JB |
415 | [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
416 | }; | |
417 | ||
418 | /* policy for the key default flags */ | |
419 | static const struct nla_policy | |
420 | nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { | |
421 | [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, | |
422 | [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, | |
b9454e83 JB |
423 | }; |
424 | ||
ff1b6e69 JB |
425 | /* policy for WoWLAN attributes */ |
426 | static const struct nla_policy | |
427 | nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { | |
428 | [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, | |
429 | [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, | |
430 | [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, | |
431 | [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, | |
77dbbb13 JB |
432 | [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, |
433 | [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, | |
434 | [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, | |
435 | [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, | |
2a0e047e | 436 | [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED }, |
8cd4d456 | 437 | [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED }, |
2a0e047e JB |
438 | }; |
439 | ||
440 | static const struct nla_policy | |
441 | nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = { | |
442 | [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 }, | |
443 | [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 }, | |
444 | [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN }, | |
445 | [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 }, | |
446 | [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 }, | |
447 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 }, | |
448 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = { | |
449 | .len = sizeof(struct nl80211_wowlan_tcp_data_seq) | |
450 | }, | |
451 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = { | |
452 | .len = sizeof(struct nl80211_wowlan_tcp_data_token) | |
453 | }, | |
454 | [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 }, | |
455 | [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 }, | |
456 | [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 }, | |
ff1b6e69 JB |
457 | }; |
458 | ||
be29b99a AK |
459 | /* policy for coalesce rule attributes */ |
460 | static const struct nla_policy | |
461 | nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = { | |
462 | [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 }, | |
463 | [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 }, | |
464 | [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED }, | |
465 | }; | |
466 | ||
e5497d76 JB |
467 | /* policy for GTK rekey offload attributes */ |
468 | static const struct nla_policy | |
469 | nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { | |
470 | [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN }, | |
471 | [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN }, | |
472 | [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN }, | |
473 | }; | |
474 | ||
a1f1c21c LC |
475 | static const struct nla_policy |
476 | nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { | |
4a4ab0d7 | 477 | [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY, |
a1f1c21c | 478 | .len = IEEE80211_MAX_SSID_LEN }, |
88e920b4 | 479 | [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 }, |
a1f1c21c LC |
480 | }; |
481 | ||
3b06d277 AS |
482 | static const struct nla_policy |
483 | nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = { | |
484 | [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 }, | |
485 | [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 }, | |
486 | }; | |
487 | ||
97990a06 JB |
488 | static int nl80211_prepare_wdev_dump(struct sk_buff *skb, |
489 | struct netlink_callback *cb, | |
490 | struct cfg80211_registered_device **rdev, | |
491 | struct wireless_dev **wdev) | |
a043897a | 492 | { |
97990a06 | 493 | int err; |
a043897a | 494 | |
97990a06 | 495 | rtnl_lock(); |
a043897a | 496 | |
97990a06 JB |
497 | if (!cb->args[0]) { |
498 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
499 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
500 | nl80211_policy); | |
501 | if (err) | |
502 | goto out_unlock; | |
67748893 | 503 | |
97990a06 JB |
504 | *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), |
505 | nl80211_fam.attrbuf); | |
506 | if (IS_ERR(*wdev)) { | |
507 | err = PTR_ERR(*wdev); | |
508 | goto out_unlock; | |
509 | } | |
f26cbf40 | 510 | *rdev = wiphy_to_rdev((*wdev)->wiphy); |
c319d50b JB |
511 | /* 0 is the first index - add 1 to parse only once */ |
512 | cb->args[0] = (*rdev)->wiphy_idx + 1; | |
97990a06 JB |
513 | cb->args[1] = (*wdev)->identifier; |
514 | } else { | |
c319d50b JB |
515 | /* subtract the 1 again here */ |
516 | struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1); | |
97990a06 | 517 | struct wireless_dev *tmp; |
67748893 | 518 | |
97990a06 JB |
519 | if (!wiphy) { |
520 | err = -ENODEV; | |
521 | goto out_unlock; | |
522 | } | |
f26cbf40 | 523 | *rdev = wiphy_to_rdev(wiphy); |
97990a06 | 524 | *wdev = NULL; |
67748893 | 525 | |
97990a06 JB |
526 | list_for_each_entry(tmp, &(*rdev)->wdev_list, list) { |
527 | if (tmp->identifier == cb->args[1]) { | |
528 | *wdev = tmp; | |
529 | break; | |
530 | } | |
531 | } | |
67748893 | 532 | |
97990a06 JB |
533 | if (!*wdev) { |
534 | err = -ENODEV; | |
535 | goto out_unlock; | |
536 | } | |
67748893 JB |
537 | } |
538 | ||
67748893 | 539 | return 0; |
97990a06 | 540 | out_unlock: |
67748893 JB |
541 | rtnl_unlock(); |
542 | return err; | |
543 | } | |
544 | ||
97990a06 | 545 | static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev) |
67748893 | 546 | { |
67748893 JB |
547 | rtnl_unlock(); |
548 | } | |
549 | ||
f4a11bb0 JB |
550 | /* IE validation */ |
551 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
552 | { | |
553 | const u8 *pos; | |
554 | int len; | |
555 | ||
556 | if (!attr) | |
557 | return true; | |
558 | ||
559 | pos = nla_data(attr); | |
560 | len = nla_len(attr); | |
561 | ||
562 | while (len) { | |
563 | u8 elemlen; | |
564 | ||
565 | if (len < 2) | |
566 | return false; | |
567 | len -= 2; | |
568 | ||
569 | elemlen = pos[1]; | |
570 | if (elemlen > len) | |
571 | return false; | |
572 | ||
573 | len -= elemlen; | |
574 | pos += 2 + elemlen; | |
575 | } | |
576 | ||
577 | return true; | |
578 | } | |
579 | ||
55682965 | 580 | /* message building helper */ |
15e47304 | 581 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq, |
55682965 JB |
582 | int flags, u8 cmd) |
583 | { | |
584 | /* since there is no private header just add the generic one */ | |
15e47304 | 585 | return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd); |
55682965 JB |
586 | } |
587 | ||
5dab3b8a | 588 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
cdc89b97 JB |
589 | struct ieee80211_channel *chan, |
590 | bool large) | |
5dab3b8a | 591 | { |
ea077c1c RL |
592 | /* Some channels must be completely excluded from the |
593 | * list to protect old user-space tools from breaking | |
594 | */ | |
595 | if (!large && chan->flags & | |
596 | (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ)) | |
597 | return 0; | |
598 | ||
9360ffd1 DM |
599 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ, |
600 | chan->center_freq)) | |
601 | goto nla_put_failure; | |
5dab3b8a | 602 | |
9360ffd1 DM |
603 | if ((chan->flags & IEEE80211_CHAN_DISABLED) && |
604 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED)) | |
605 | goto nla_put_failure; | |
8fe02e16 LR |
606 | if (chan->flags & IEEE80211_CHAN_NO_IR) { |
607 | if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR)) | |
608 | goto nla_put_failure; | |
609 | if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS)) | |
610 | goto nla_put_failure; | |
611 | } | |
cdc89b97 JB |
612 | if (chan->flags & IEEE80211_CHAN_RADAR) { |
613 | if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR)) | |
614 | goto nla_put_failure; | |
615 | if (large) { | |
616 | u32 time; | |
617 | ||
618 | time = elapsed_jiffies_msecs(chan->dfs_state_entered); | |
619 | ||
620 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE, | |
621 | chan->dfs_state)) | |
622 | goto nla_put_failure; | |
623 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, | |
624 | time)) | |
625 | goto nla_put_failure; | |
089027e5 JD |
626 | if (nla_put_u32(msg, |
627 | NL80211_FREQUENCY_ATTR_DFS_CAC_TIME, | |
628 | chan->dfs_cac_ms)) | |
629 | goto nla_put_failure; | |
cdc89b97 JB |
630 | } |
631 | } | |
5dab3b8a | 632 | |
fe1abafd JB |
633 | if (large) { |
634 | if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) && | |
635 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS)) | |
636 | goto nla_put_failure; | |
637 | if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) && | |
638 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS)) | |
639 | goto nla_put_failure; | |
640 | if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) && | |
641 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ)) | |
642 | goto nla_put_failure; | |
643 | if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) && | |
644 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ)) | |
645 | goto nla_put_failure; | |
570dbde1 DS |
646 | if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) && |
647 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY)) | |
648 | goto nla_put_failure; | |
06f207fc AN |
649 | if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) && |
650 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT)) | |
570dbde1 | 651 | goto nla_put_failure; |
ea077c1c RL |
652 | if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) && |
653 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ)) | |
654 | goto nla_put_failure; | |
655 | if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) && | |
656 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ)) | |
657 | goto nla_put_failure; | |
fe1abafd JB |
658 | } |
659 | ||
9360ffd1 DM |
660 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, |
661 | DBM_TO_MBM(chan->max_power))) | |
662 | goto nla_put_failure; | |
5dab3b8a LR |
663 | |
664 | return 0; | |
665 | ||
666 | nla_put_failure: | |
667 | return -ENOBUFS; | |
668 | } | |
669 | ||
55682965 JB |
670 | /* netlink command implementations */ |
671 | ||
b9454e83 JB |
672 | struct key_parse { |
673 | struct key_params p; | |
674 | int idx; | |
e31b8213 | 675 | int type; |
b9454e83 | 676 | bool def, defmgmt; |
dbd2fd65 | 677 | bool def_uni, def_multi; |
b9454e83 JB |
678 | }; |
679 | ||
680 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
681 | { | |
682 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
683 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
684 | nl80211_key_policy); | |
685 | if (err) | |
686 | return err; | |
687 | ||
688 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
689 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
690 | ||
dbd2fd65 JB |
691 | if (k->def) { |
692 | k->def_uni = true; | |
693 | k->def_multi = true; | |
694 | } | |
695 | if (k->defmgmt) | |
696 | k->def_multi = true; | |
697 | ||
b9454e83 JB |
698 | if (tb[NL80211_KEY_IDX]) |
699 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
700 | ||
701 | if (tb[NL80211_KEY_DATA]) { | |
702 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
703 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
704 | } | |
705 | ||
706 | if (tb[NL80211_KEY_SEQ]) { | |
707 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
708 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
709 | } | |
710 | ||
711 | if (tb[NL80211_KEY_CIPHER]) | |
712 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
713 | ||
e31b8213 JB |
714 | if (tb[NL80211_KEY_TYPE]) { |
715 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
716 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
717 | return -EINVAL; | |
718 | } | |
719 | ||
dbd2fd65 JB |
720 | if (tb[NL80211_KEY_DEFAULT_TYPES]) { |
721 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
2da8f419 JB |
722 | err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, |
723 | tb[NL80211_KEY_DEFAULT_TYPES], | |
724 | nl80211_key_default_policy); | |
dbd2fd65 JB |
725 | if (err) |
726 | return err; | |
727 | ||
728 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
729 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
730 | } | |
731 | ||
b9454e83 JB |
732 | return 0; |
733 | } | |
734 | ||
735 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
736 | { | |
737 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
738 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
739 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
740 | } | |
741 | ||
742 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
743 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
744 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
745 | } | |
746 | ||
747 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
748 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
749 | ||
750 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
751 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
752 | ||
753 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
754 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
755 | ||
dbd2fd65 JB |
756 | if (k->def) { |
757 | k->def_uni = true; | |
758 | k->def_multi = true; | |
759 | } | |
760 | if (k->defmgmt) | |
761 | k->def_multi = true; | |
762 | ||
e31b8213 JB |
763 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
764 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
765 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
766 | return -EINVAL; | |
767 | } | |
768 | ||
dbd2fd65 JB |
769 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { |
770 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
771 | int err = nla_parse_nested( | |
772 | kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, | |
773 | info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], | |
774 | nl80211_key_default_policy); | |
775 | if (err) | |
776 | return err; | |
777 | ||
778 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
779 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
780 | } | |
781 | ||
b9454e83 JB |
782 | return 0; |
783 | } | |
784 | ||
785 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
786 | { | |
787 | int err; | |
788 | ||
789 | memset(k, 0, sizeof(*k)); | |
790 | k->idx = -1; | |
e31b8213 | 791 | k->type = -1; |
b9454e83 JB |
792 | |
793 | if (info->attrs[NL80211_ATTR_KEY]) | |
794 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
795 | else | |
796 | err = nl80211_parse_key_old(info, k); | |
797 | ||
798 | if (err) | |
799 | return err; | |
800 | ||
801 | if (k->def && k->defmgmt) | |
802 | return -EINVAL; | |
803 | ||
dbd2fd65 JB |
804 | if (k->defmgmt) { |
805 | if (k->def_uni || !k->def_multi) | |
806 | return -EINVAL; | |
807 | } | |
808 | ||
b9454e83 JB |
809 | if (k->idx != -1) { |
810 | if (k->defmgmt) { | |
811 | if (k->idx < 4 || k->idx > 5) | |
812 | return -EINVAL; | |
813 | } else if (k->def) { | |
814 | if (k->idx < 0 || k->idx > 3) | |
815 | return -EINVAL; | |
816 | } else { | |
817 | if (k->idx < 0 || k->idx > 5) | |
818 | return -EINVAL; | |
819 | } | |
820 | } | |
821 | ||
822 | return 0; | |
823 | } | |
824 | ||
fffd0934 JB |
825 | static struct cfg80211_cached_keys * |
826 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
de7044ee | 827 | struct nlattr *keys, bool *no_ht) |
fffd0934 JB |
828 | { |
829 | struct key_parse parse; | |
830 | struct nlattr *key; | |
831 | struct cfg80211_cached_keys *result; | |
832 | int rem, err, def = 0; | |
833 | ||
834 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
835 | if (!result) | |
836 | return ERR_PTR(-ENOMEM); | |
837 | ||
838 | result->def = -1; | |
839 | result->defmgmt = -1; | |
840 | ||
841 | nla_for_each_nested(key, keys, rem) { | |
842 | memset(&parse, 0, sizeof(parse)); | |
843 | parse.idx = -1; | |
844 | ||
845 | err = nl80211_parse_key_new(key, &parse); | |
846 | if (err) | |
847 | goto error; | |
848 | err = -EINVAL; | |
849 | if (!parse.p.key) | |
850 | goto error; | |
851 | if (parse.idx < 0 || parse.idx > 4) | |
852 | goto error; | |
853 | if (parse.def) { | |
854 | if (def) | |
855 | goto error; | |
856 | def = 1; | |
857 | result->def = parse.idx; | |
dbd2fd65 JB |
858 | if (!parse.def_uni || !parse.def_multi) |
859 | goto error; | |
fffd0934 JB |
860 | } else if (parse.defmgmt) |
861 | goto error; | |
862 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
e31b8213 | 863 | parse.idx, false, NULL); |
fffd0934 JB |
864 | if (err) |
865 | goto error; | |
866 | result->params[parse.idx].cipher = parse.p.cipher; | |
867 | result->params[parse.idx].key_len = parse.p.key_len; | |
868 | result->params[parse.idx].key = result->data[parse.idx]; | |
869 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
de7044ee SM |
870 | |
871 | if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 || | |
872 | parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) { | |
873 | if (no_ht) | |
874 | *no_ht = true; | |
875 | } | |
fffd0934 JB |
876 | } |
877 | ||
878 | return result; | |
879 | error: | |
880 | kfree(result); | |
881 | return ERR_PTR(err); | |
882 | } | |
883 | ||
884 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
885 | { | |
886 | ASSERT_WDEV_LOCK(wdev); | |
887 | ||
fffd0934 JB |
888 | switch (wdev->iftype) { |
889 | case NL80211_IFTYPE_AP: | |
890 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 891 | case NL80211_IFTYPE_P2P_GO: |
ff973af7 | 892 | case NL80211_IFTYPE_MESH_POINT: |
fffd0934 JB |
893 | break; |
894 | case NL80211_IFTYPE_ADHOC: | |
fffd0934 | 895 | case NL80211_IFTYPE_STATION: |
074ac8df | 896 | case NL80211_IFTYPE_P2P_CLIENT: |
ceca7b71 | 897 | if (!wdev->current_bss) |
fffd0934 JB |
898 | return -ENOLINK; |
899 | break; | |
de4fcbad | 900 | case NL80211_IFTYPE_UNSPECIFIED: |
6e0bd6c3 | 901 | case NL80211_IFTYPE_OCB: |
de4fcbad JB |
902 | case NL80211_IFTYPE_MONITOR: |
903 | case NL80211_IFTYPE_P2P_DEVICE: | |
904 | case NL80211_IFTYPE_WDS: | |
905 | case NUM_NL80211_IFTYPES: | |
fffd0934 JB |
906 | return -EINVAL; |
907 | } | |
908 | ||
909 | return 0; | |
910 | } | |
911 | ||
664834de JM |
912 | static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy, |
913 | struct nlattr *tb) | |
914 | { | |
915 | struct ieee80211_channel *chan; | |
916 | ||
917 | if (tb == NULL) | |
918 | return NULL; | |
919 | chan = ieee80211_get_channel(wiphy, nla_get_u32(tb)); | |
920 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) | |
921 | return NULL; | |
922 | return chan; | |
923 | } | |
924 | ||
7527a782 JB |
925 | static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) |
926 | { | |
927 | struct nlattr *nl_modes = nla_nest_start(msg, attr); | |
928 | int i; | |
929 | ||
930 | if (!nl_modes) | |
931 | goto nla_put_failure; | |
932 | ||
933 | i = 0; | |
934 | while (ifmodes) { | |
9360ffd1 DM |
935 | if ((ifmodes & 1) && nla_put_flag(msg, i)) |
936 | goto nla_put_failure; | |
7527a782 JB |
937 | ifmodes >>= 1; |
938 | i++; | |
939 | } | |
940 | ||
941 | nla_nest_end(msg, nl_modes); | |
942 | return 0; | |
943 | ||
944 | nla_put_failure: | |
945 | return -ENOBUFS; | |
946 | } | |
947 | ||
948 | static int nl80211_put_iface_combinations(struct wiphy *wiphy, | |
cdc89b97 JB |
949 | struct sk_buff *msg, |
950 | bool large) | |
7527a782 JB |
951 | { |
952 | struct nlattr *nl_combis; | |
953 | int i, j; | |
954 | ||
955 | nl_combis = nla_nest_start(msg, | |
956 | NL80211_ATTR_INTERFACE_COMBINATIONS); | |
957 | if (!nl_combis) | |
958 | goto nla_put_failure; | |
959 | ||
960 | for (i = 0; i < wiphy->n_iface_combinations; i++) { | |
961 | const struct ieee80211_iface_combination *c; | |
962 | struct nlattr *nl_combi, *nl_limits; | |
963 | ||
964 | c = &wiphy->iface_combinations[i]; | |
965 | ||
966 | nl_combi = nla_nest_start(msg, i + 1); | |
967 | if (!nl_combi) | |
968 | goto nla_put_failure; | |
969 | ||
970 | nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS); | |
971 | if (!nl_limits) | |
972 | goto nla_put_failure; | |
973 | ||
974 | for (j = 0; j < c->n_limits; j++) { | |
975 | struct nlattr *nl_limit; | |
976 | ||
977 | nl_limit = nla_nest_start(msg, j + 1); | |
978 | if (!nl_limit) | |
979 | goto nla_put_failure; | |
9360ffd1 DM |
980 | if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX, |
981 | c->limits[j].max)) | |
982 | goto nla_put_failure; | |
7527a782 JB |
983 | if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, |
984 | c->limits[j].types)) | |
985 | goto nla_put_failure; | |
986 | nla_nest_end(msg, nl_limit); | |
987 | } | |
988 | ||
989 | nla_nest_end(msg, nl_limits); | |
990 | ||
9360ffd1 DM |
991 | if (c->beacon_int_infra_match && |
992 | nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH)) | |
993 | goto nla_put_failure; | |
994 | if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, | |
995 | c->num_different_channels) || | |
996 | nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM, | |
997 | c->max_interfaces)) | |
998 | goto nla_put_failure; | |
cdc89b97 | 999 | if (large && |
8c48b50a FF |
1000 | (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS, |
1001 | c->radar_detect_widths) || | |
1002 | nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS, | |
1003 | c->radar_detect_regions))) | |
cdc89b97 | 1004 | goto nla_put_failure; |
7527a782 JB |
1005 | |
1006 | nla_nest_end(msg, nl_combi); | |
1007 | } | |
1008 | ||
1009 | nla_nest_end(msg, nl_combis); | |
1010 | ||
1011 | return 0; | |
1012 | nla_put_failure: | |
1013 | return -ENOBUFS; | |
1014 | } | |
1015 | ||
3713b4e3 | 1016 | #ifdef CONFIG_PM |
b56cf720 JB |
1017 | static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev, |
1018 | struct sk_buff *msg) | |
1019 | { | |
964dc9e2 | 1020 | const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp; |
b56cf720 JB |
1021 | struct nlattr *nl_tcp; |
1022 | ||
1023 | if (!tcp) | |
1024 | return 0; | |
1025 | ||
1026 | nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); | |
1027 | if (!nl_tcp) | |
1028 | return -ENOBUFS; | |
1029 | ||
1030 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
1031 | tcp->data_payload_max)) | |
1032 | return -ENOBUFS; | |
1033 | ||
1034 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
1035 | tcp->data_payload_max)) | |
1036 | return -ENOBUFS; | |
1037 | ||
1038 | if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ)) | |
1039 | return -ENOBUFS; | |
1040 | ||
1041 | if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, | |
1042 | sizeof(*tcp->tok), tcp->tok)) | |
1043 | return -ENOBUFS; | |
1044 | ||
1045 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, | |
1046 | tcp->data_interval_max)) | |
1047 | return -ENOBUFS; | |
1048 | ||
1049 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, | |
1050 | tcp->wake_payload_max)) | |
1051 | return -ENOBUFS; | |
1052 | ||
1053 | nla_nest_end(msg, nl_tcp); | |
1054 | return 0; | |
1055 | } | |
1056 | ||
3713b4e3 | 1057 | static int nl80211_send_wowlan(struct sk_buff *msg, |
1b8ec87a | 1058 | struct cfg80211_registered_device *rdev, |
b56cf720 | 1059 | bool large) |
55682965 | 1060 | { |
3713b4e3 | 1061 | struct nlattr *nl_wowlan; |
55682965 | 1062 | |
1b8ec87a | 1063 | if (!rdev->wiphy.wowlan) |
3713b4e3 | 1064 | return 0; |
55682965 | 1065 | |
3713b4e3 JB |
1066 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); |
1067 | if (!nl_wowlan) | |
1068 | return -ENOBUFS; | |
9360ffd1 | 1069 | |
1b8ec87a | 1070 | if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) && |
3713b4e3 | 1071 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || |
1b8ec87a | 1072 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) && |
3713b4e3 | 1073 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || |
1b8ec87a | 1074 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) && |
3713b4e3 | 1075 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || |
1b8ec87a | 1076 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && |
3713b4e3 | 1077 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) || |
1b8ec87a | 1078 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && |
3713b4e3 | 1079 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || |
1b8ec87a | 1080 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && |
3713b4e3 | 1081 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || |
1b8ec87a | 1082 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && |
3713b4e3 | 1083 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || |
1b8ec87a | 1084 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) && |
3713b4e3 JB |
1085 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) |
1086 | return -ENOBUFS; | |
9360ffd1 | 1087 | |
1b8ec87a | 1088 | if (rdev->wiphy.wowlan->n_patterns) { |
50ac6607 | 1089 | struct nl80211_pattern_support pat = { |
1b8ec87a ZG |
1090 | .max_patterns = rdev->wiphy.wowlan->n_patterns, |
1091 | .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len, | |
1092 | .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len, | |
1093 | .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset, | |
3713b4e3 | 1094 | }; |
9360ffd1 | 1095 | |
3713b4e3 JB |
1096 | if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, |
1097 | sizeof(pat), &pat)) | |
1098 | return -ENOBUFS; | |
1099 | } | |
9360ffd1 | 1100 | |
75453ccb LC |
1101 | if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) && |
1102 | nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT, | |
1103 | rdev->wiphy.wowlan->max_nd_match_sets)) | |
1104 | return -ENOBUFS; | |
1105 | ||
1b8ec87a | 1106 | if (large && nl80211_send_wowlan_tcp_caps(rdev, msg)) |
b56cf720 JB |
1107 | return -ENOBUFS; |
1108 | ||
3713b4e3 | 1109 | nla_nest_end(msg, nl_wowlan); |
9360ffd1 | 1110 | |
3713b4e3 JB |
1111 | return 0; |
1112 | } | |
1113 | #endif | |
9360ffd1 | 1114 | |
be29b99a | 1115 | static int nl80211_send_coalesce(struct sk_buff *msg, |
1b8ec87a | 1116 | struct cfg80211_registered_device *rdev) |
be29b99a AK |
1117 | { |
1118 | struct nl80211_coalesce_rule_support rule; | |
1119 | ||
1b8ec87a | 1120 | if (!rdev->wiphy.coalesce) |
be29b99a AK |
1121 | return 0; |
1122 | ||
1b8ec87a ZG |
1123 | rule.max_rules = rdev->wiphy.coalesce->n_rules; |
1124 | rule.max_delay = rdev->wiphy.coalesce->max_delay; | |
1125 | rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns; | |
1126 | rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len; | |
1127 | rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len; | |
1128 | rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset; | |
be29b99a AK |
1129 | |
1130 | if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule)) | |
1131 | return -ENOBUFS; | |
1132 | ||
1133 | return 0; | |
1134 | } | |
1135 | ||
3713b4e3 JB |
1136 | static int nl80211_send_band_rateinfo(struct sk_buff *msg, |
1137 | struct ieee80211_supported_band *sband) | |
1138 | { | |
1139 | struct nlattr *nl_rates, *nl_rate; | |
1140 | struct ieee80211_rate *rate; | |
1141 | int i; | |
87bbbe22 | 1142 | |
3713b4e3 JB |
1143 | /* add HT info */ |
1144 | if (sband->ht_cap.ht_supported && | |
1145 | (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
1146 | sizeof(sband->ht_cap.mcs), | |
1147 | &sband->ht_cap.mcs) || | |
1148 | nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
1149 | sband->ht_cap.cap) || | |
1150 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
1151 | sband->ht_cap.ampdu_factor) || | |
1152 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
1153 | sband->ht_cap.ampdu_density))) | |
1154 | return -ENOBUFS; | |
afe0cbf8 | 1155 | |
3713b4e3 JB |
1156 | /* add VHT info */ |
1157 | if (sband->vht_cap.vht_supported && | |
1158 | (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET, | |
1159 | sizeof(sband->vht_cap.vht_mcs), | |
1160 | &sband->vht_cap.vht_mcs) || | |
1161 | nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA, | |
1162 | sband->vht_cap.cap))) | |
1163 | return -ENOBUFS; | |
f59ac048 | 1164 | |
3713b4e3 JB |
1165 | /* add bitrates */ |
1166 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
1167 | if (!nl_rates) | |
1168 | return -ENOBUFS; | |
ee688b00 | 1169 | |
3713b4e3 JB |
1170 | for (i = 0; i < sband->n_bitrates; i++) { |
1171 | nl_rate = nla_nest_start(msg, i); | |
1172 | if (!nl_rate) | |
1173 | return -ENOBUFS; | |
ee688b00 | 1174 | |
3713b4e3 JB |
1175 | rate = &sband->bitrates[i]; |
1176 | if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE, | |
1177 | rate->bitrate)) | |
1178 | return -ENOBUFS; | |
1179 | if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && | |
1180 | nla_put_flag(msg, | |
1181 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE)) | |
1182 | return -ENOBUFS; | |
ee688b00 | 1183 | |
3713b4e3 JB |
1184 | nla_nest_end(msg, nl_rate); |
1185 | } | |
d51626df | 1186 | |
3713b4e3 | 1187 | nla_nest_end(msg, nl_rates); |
bf0c111e | 1188 | |
3713b4e3 JB |
1189 | return 0; |
1190 | } | |
ee688b00 | 1191 | |
3713b4e3 JB |
1192 | static int |
1193 | nl80211_send_mgmt_stypes(struct sk_buff *msg, | |
1194 | const struct ieee80211_txrx_stypes *mgmt_stypes) | |
1195 | { | |
1196 | u16 stypes; | |
1197 | struct nlattr *nl_ftypes, *nl_ifs; | |
1198 | enum nl80211_iftype ift; | |
1199 | int i; | |
ee688b00 | 1200 | |
3713b4e3 JB |
1201 | if (!mgmt_stypes) |
1202 | return 0; | |
5dab3b8a | 1203 | |
3713b4e3 JB |
1204 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); |
1205 | if (!nl_ifs) | |
1206 | return -ENOBUFS; | |
e2f367f2 | 1207 | |
3713b4e3 JB |
1208 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { |
1209 | nl_ftypes = nla_nest_start(msg, ift); | |
1210 | if (!nl_ftypes) | |
1211 | return -ENOBUFS; | |
1212 | i = 0; | |
1213 | stypes = mgmt_stypes[ift].tx; | |
1214 | while (stypes) { | |
1215 | if ((stypes & 1) && | |
1216 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1217 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1218 | return -ENOBUFS; | |
1219 | stypes >>= 1; | |
1220 | i++; | |
ee688b00 | 1221 | } |
3713b4e3 JB |
1222 | nla_nest_end(msg, nl_ftypes); |
1223 | } | |
ee688b00 | 1224 | |
3713b4e3 | 1225 | nla_nest_end(msg, nl_ifs); |
ee688b00 | 1226 | |
3713b4e3 JB |
1227 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
1228 | if (!nl_ifs) | |
1229 | return -ENOBUFS; | |
ee688b00 | 1230 | |
3713b4e3 JB |
1231 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { |
1232 | nl_ftypes = nla_nest_start(msg, ift); | |
1233 | if (!nl_ftypes) | |
1234 | return -ENOBUFS; | |
1235 | i = 0; | |
1236 | stypes = mgmt_stypes[ift].rx; | |
1237 | while (stypes) { | |
1238 | if ((stypes & 1) && | |
1239 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1240 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1241 | return -ENOBUFS; | |
1242 | stypes >>= 1; | |
1243 | i++; | |
1244 | } | |
1245 | nla_nest_end(msg, nl_ftypes); | |
1246 | } | |
1247 | nla_nest_end(msg, nl_ifs); | |
ee688b00 | 1248 | |
3713b4e3 JB |
1249 | return 0; |
1250 | } | |
ee688b00 | 1251 | |
86e8cf98 JB |
1252 | struct nl80211_dump_wiphy_state { |
1253 | s64 filter_wiphy; | |
1254 | long start; | |
1255 | long split_start, band_start, chan_start; | |
1256 | bool split; | |
1257 | }; | |
1258 | ||
1b8ec87a | 1259 | static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev, |
3bb20556 | 1260 | enum nl80211_commands cmd, |
3713b4e3 | 1261 | struct sk_buff *msg, u32 portid, u32 seq, |
86e8cf98 | 1262 | int flags, struct nl80211_dump_wiphy_state *state) |
3713b4e3 JB |
1263 | { |
1264 | void *hdr; | |
1265 | struct nlattr *nl_bands, *nl_band; | |
1266 | struct nlattr *nl_freqs, *nl_freq; | |
1267 | struct nlattr *nl_cmds; | |
1268 | enum ieee80211_band band; | |
1269 | struct ieee80211_channel *chan; | |
1270 | int i; | |
1271 | const struct ieee80211_txrx_stypes *mgmt_stypes = | |
1b8ec87a | 1272 | rdev->wiphy.mgmt_stypes; |
fe1abafd | 1273 | u32 features; |
ee688b00 | 1274 | |
3bb20556 | 1275 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
3713b4e3 JB |
1276 | if (!hdr) |
1277 | return -ENOBUFS; | |
ee688b00 | 1278 | |
86e8cf98 JB |
1279 | if (WARN_ON(!state)) |
1280 | return -EINVAL; | |
ee688b00 | 1281 | |
1b8ec87a | 1282 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
3713b4e3 | 1283 | nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, |
1b8ec87a | 1284 | wiphy_name(&rdev->wiphy)) || |
3713b4e3 JB |
1285 | nla_put_u32(msg, NL80211_ATTR_GENERATION, |
1286 | cfg80211_rdev_list_generation)) | |
8fdc621d JB |
1287 | goto nla_put_failure; |
1288 | ||
3bb20556 JB |
1289 | if (cmd != NL80211_CMD_NEW_WIPHY) |
1290 | goto finish; | |
1291 | ||
86e8cf98 | 1292 | switch (state->split_start) { |
3713b4e3 JB |
1293 | case 0: |
1294 | if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, | |
1b8ec87a | 1295 | rdev->wiphy.retry_short) || |
3713b4e3 | 1296 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, |
1b8ec87a | 1297 | rdev->wiphy.retry_long) || |
3713b4e3 | 1298 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, |
1b8ec87a | 1299 | rdev->wiphy.frag_threshold) || |
3713b4e3 | 1300 | nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, |
1b8ec87a | 1301 | rdev->wiphy.rts_threshold) || |
3713b4e3 | 1302 | nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
1b8ec87a | 1303 | rdev->wiphy.coverage_class) || |
3713b4e3 | 1304 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
1b8ec87a | 1305 | rdev->wiphy.max_scan_ssids) || |
3713b4e3 | 1306 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, |
1b8ec87a | 1307 | rdev->wiphy.max_sched_scan_ssids) || |
3713b4e3 | 1308 | nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
1b8ec87a | 1309 | rdev->wiphy.max_scan_ie_len) || |
3713b4e3 | 1310 | nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, |
1b8ec87a | 1311 | rdev->wiphy.max_sched_scan_ie_len) || |
3713b4e3 | 1312 | nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS, |
3b06d277 AS |
1313 | rdev->wiphy.max_match_sets) || |
1314 | nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS, | |
1315 | rdev->wiphy.max_sched_scan_plans) || | |
1316 | nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL, | |
1317 | rdev->wiphy.max_sched_scan_plan_interval) || | |
1318 | nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS, | |
1319 | rdev->wiphy.max_sched_scan_plan_iterations)) | |
9360ffd1 | 1320 | goto nla_put_failure; |
3713b4e3 | 1321 | |
1b8ec87a | 1322 | if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && |
3713b4e3 | 1323 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN)) |
aa430da4 | 1324 | goto nla_put_failure; |
1b8ec87a | 1325 | if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && |
3713b4e3 JB |
1326 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH)) |
1327 | goto nla_put_failure; | |
1b8ec87a | 1328 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && |
3713b4e3 JB |
1329 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD)) |
1330 | goto nla_put_failure; | |
1b8ec87a | 1331 | if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && |
3713b4e3 JB |
1332 | nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT)) |
1333 | goto nla_put_failure; | |
1b8ec87a | 1334 | if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && |
3713b4e3 JB |
1335 | nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT)) |
1336 | goto nla_put_failure; | |
1b8ec87a | 1337 | if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && |
3713b4e3 | 1338 | nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP)) |
9360ffd1 | 1339 | goto nla_put_failure; |
86e8cf98 JB |
1340 | state->split_start++; |
1341 | if (state->split) | |
3713b4e3 JB |
1342 | break; |
1343 | case 1: | |
1344 | if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES, | |
1b8ec87a ZG |
1345 | sizeof(u32) * rdev->wiphy.n_cipher_suites, |
1346 | rdev->wiphy.cipher_suites)) | |
3713b4e3 | 1347 | goto nla_put_failure; |
4745fc09 | 1348 | |
3713b4e3 | 1349 | if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
1b8ec87a | 1350 | rdev->wiphy.max_num_pmkids)) |
3713b4e3 | 1351 | goto nla_put_failure; |
b23aa676 | 1352 | |
1b8ec87a | 1353 | if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && |
3713b4e3 | 1354 | nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE)) |
9360ffd1 | 1355 | goto nla_put_failure; |
b23aa676 | 1356 | |
3713b4e3 | 1357 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, |
1b8ec87a | 1358 | rdev->wiphy.available_antennas_tx) || |
3713b4e3 | 1359 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, |
1b8ec87a | 1360 | rdev->wiphy.available_antennas_rx)) |
9360ffd1 | 1361 | goto nla_put_failure; |
b23aa676 | 1362 | |
1b8ec87a | 1363 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && |
3713b4e3 | 1364 | nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, |
1b8ec87a | 1365 | rdev->wiphy.probe_resp_offload)) |
3713b4e3 | 1366 | goto nla_put_failure; |
8fdc621d | 1367 | |
1b8ec87a ZG |
1368 | if ((rdev->wiphy.available_antennas_tx || |
1369 | rdev->wiphy.available_antennas_rx) && | |
1370 | rdev->ops->get_antenna) { | |
3713b4e3 JB |
1371 | u32 tx_ant = 0, rx_ant = 0; |
1372 | int res; | |
1b8ec87a | 1373 | res = rdev_get_antenna(rdev, &tx_ant, &rx_ant); |
3713b4e3 JB |
1374 | if (!res) { |
1375 | if (nla_put_u32(msg, | |
1376 | NL80211_ATTR_WIPHY_ANTENNA_TX, | |
1377 | tx_ant) || | |
1378 | nla_put_u32(msg, | |
1379 | NL80211_ATTR_WIPHY_ANTENNA_RX, | |
1380 | rx_ant)) | |
1381 | goto nla_put_failure; | |
1382 | } | |
1383 | } | |
a293911d | 1384 | |
86e8cf98 JB |
1385 | state->split_start++; |
1386 | if (state->split) | |
3713b4e3 JB |
1387 | break; |
1388 | case 2: | |
1389 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, | |
1b8ec87a | 1390 | rdev->wiphy.interface_modes)) |
3713b4e3 | 1391 | goto nla_put_failure; |
86e8cf98 JB |
1392 | state->split_start++; |
1393 | if (state->split) | |
3713b4e3 JB |
1394 | break; |
1395 | case 3: | |
1396 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); | |
1397 | if (!nl_bands) | |
1398 | goto nla_put_failure; | |
f7ca38df | 1399 | |
86e8cf98 JB |
1400 | for (band = state->band_start; |
1401 | band < IEEE80211_NUM_BANDS; band++) { | |
3713b4e3 | 1402 | struct ieee80211_supported_band *sband; |
2e161f78 | 1403 | |
1b8ec87a | 1404 | sband = rdev->wiphy.bands[band]; |
2e161f78 | 1405 | |
3713b4e3 JB |
1406 | if (!sband) |
1407 | continue; | |
1408 | ||
1409 | nl_band = nla_nest_start(msg, band); | |
1410 | if (!nl_band) | |
2e161f78 | 1411 | goto nla_put_failure; |
3713b4e3 | 1412 | |
86e8cf98 | 1413 | switch (state->chan_start) { |
3713b4e3 JB |
1414 | case 0: |
1415 | if (nl80211_send_band_rateinfo(msg, sband)) | |
9360ffd1 | 1416 | goto nla_put_failure; |
86e8cf98 JB |
1417 | state->chan_start++; |
1418 | if (state->split) | |
3713b4e3 JB |
1419 | break; |
1420 | default: | |
1421 | /* add frequencies */ | |
1422 | nl_freqs = nla_nest_start( | |
1423 | msg, NL80211_BAND_ATTR_FREQS); | |
1424 | if (!nl_freqs) | |
1425 | goto nla_put_failure; | |
1426 | ||
86e8cf98 | 1427 | for (i = state->chan_start - 1; |
3713b4e3 JB |
1428 | i < sband->n_channels; |
1429 | i++) { | |
1430 | nl_freq = nla_nest_start(msg, i); | |
1431 | if (!nl_freq) | |
1432 | goto nla_put_failure; | |
1433 | ||
1434 | chan = &sband->channels[i]; | |
1435 | ||
86e8cf98 JB |
1436 | if (nl80211_msg_put_channel( |
1437 | msg, chan, | |
1438 | state->split)) | |
3713b4e3 JB |
1439 | goto nla_put_failure; |
1440 | ||
1441 | nla_nest_end(msg, nl_freq); | |
86e8cf98 | 1442 | if (state->split) |
3713b4e3 JB |
1443 | break; |
1444 | } | |
1445 | if (i < sband->n_channels) | |
86e8cf98 | 1446 | state->chan_start = i + 2; |
3713b4e3 | 1447 | else |
86e8cf98 | 1448 | state->chan_start = 0; |
3713b4e3 JB |
1449 | nla_nest_end(msg, nl_freqs); |
1450 | } | |
1451 | ||
1452 | nla_nest_end(msg, nl_band); | |
1453 | ||
86e8cf98 | 1454 | if (state->split) { |
3713b4e3 | 1455 | /* start again here */ |
86e8cf98 | 1456 | if (state->chan_start) |
3713b4e3 JB |
1457 | band--; |
1458 | break; | |
2e161f78 | 1459 | } |
2e161f78 | 1460 | } |
3713b4e3 | 1461 | nla_nest_end(msg, nl_bands); |
2e161f78 | 1462 | |
3713b4e3 | 1463 | if (band < IEEE80211_NUM_BANDS) |
86e8cf98 | 1464 | state->band_start = band + 1; |
3713b4e3 | 1465 | else |
86e8cf98 | 1466 | state->band_start = 0; |
74b70a4e | 1467 | |
3713b4e3 | 1468 | /* if bands & channels are done, continue outside */ |
86e8cf98 JB |
1469 | if (state->band_start == 0 && state->chan_start == 0) |
1470 | state->split_start++; | |
1471 | if (state->split) | |
3713b4e3 JB |
1472 | break; |
1473 | case 4: | |
1474 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); | |
1475 | if (!nl_cmds) | |
2e161f78 JB |
1476 | goto nla_put_failure; |
1477 | ||
3713b4e3 JB |
1478 | i = 0; |
1479 | #define CMD(op, n) \ | |
1480 | do { \ | |
1b8ec87a | 1481 | if (rdev->ops->op) { \ |
3713b4e3 JB |
1482 | i++; \ |
1483 | if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \ | |
1484 | goto nla_put_failure; \ | |
1485 | } \ | |
1486 | } while (0) | |
1487 | ||
1488 | CMD(add_virtual_intf, NEW_INTERFACE); | |
1489 | CMD(change_virtual_intf, SET_INTERFACE); | |
1490 | CMD(add_key, NEW_KEY); | |
1491 | CMD(start_ap, START_AP); | |
1492 | CMD(add_station, NEW_STATION); | |
1493 | CMD(add_mpath, NEW_MPATH); | |
1494 | CMD(update_mesh_config, SET_MESH_CONFIG); | |
1495 | CMD(change_bss, SET_BSS); | |
1496 | CMD(auth, AUTHENTICATE); | |
1497 | CMD(assoc, ASSOCIATE); | |
1498 | CMD(deauth, DEAUTHENTICATE); | |
1499 | CMD(disassoc, DISASSOCIATE); | |
1500 | CMD(join_ibss, JOIN_IBSS); | |
1501 | CMD(join_mesh, JOIN_MESH); | |
1502 | CMD(set_pmksa, SET_PMKSA); | |
1503 | CMD(del_pmksa, DEL_PMKSA); | |
1504 | CMD(flush_pmksa, FLUSH_PMKSA); | |
1b8ec87a | 1505 | if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) |
3713b4e3 JB |
1506 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
1507 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); | |
1508 | CMD(mgmt_tx, FRAME); | |
1509 | CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); | |
1b8ec87a | 1510 | if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
3713b4e3 JB |
1511 | i++; |
1512 | if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) | |
2e161f78 | 1513 | goto nla_put_failure; |
2e161f78 | 1514 | } |
1b8ec87a ZG |
1515 | if (rdev->ops->set_monitor_channel || rdev->ops->start_ap || |
1516 | rdev->ops->join_mesh) { | |
3713b4e3 JB |
1517 | i++; |
1518 | if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) | |
1519 | goto nla_put_failure; | |
1520 | } | |
1521 | CMD(set_wds_peer, SET_WDS_PEER); | |
1b8ec87a | 1522 | if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { |
3713b4e3 JB |
1523 | CMD(tdls_mgmt, TDLS_MGMT); |
1524 | CMD(tdls_oper, TDLS_OPER); | |
1525 | } | |
1b8ec87a | 1526 | if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) |
3713b4e3 JB |
1527 | CMD(sched_scan_start, START_SCHED_SCAN); |
1528 | CMD(probe_client, PROBE_CLIENT); | |
1529 | CMD(set_noack_map, SET_NOACK_MAP); | |
1b8ec87a | 1530 | if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { |
3713b4e3 JB |
1531 | i++; |
1532 | if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS)) | |
1533 | goto nla_put_failure; | |
1534 | } | |
1535 | CMD(start_p2p_device, START_P2P_DEVICE); | |
1536 | CMD(set_mcast_rate, SET_MCAST_RATE); | |
02df00eb JB |
1537 | #ifdef CONFIG_NL80211_TESTMODE |
1538 | CMD(testmode_cmd, TESTMODE); | |
1539 | #endif | |
86e8cf98 | 1540 | if (state->split) { |
5de17984 AS |
1541 | CMD(crit_proto_start, CRIT_PROTOCOL_START); |
1542 | CMD(crit_proto_stop, CRIT_PROTOCOL_STOP); | |
1b8ec87a | 1543 | if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH) |
16ef1fe2 | 1544 | CMD(channel_switch, CHANNEL_SWITCH); |
02df00eb | 1545 | CMD(set_qos_map, SET_QOS_MAP); |
723e73ac JB |
1546 | if (rdev->wiphy.features & |
1547 | NL80211_FEATURE_SUPPORTS_WMM_ADMISSION) | |
960d01ac | 1548 | CMD(add_tx_ts, ADD_TX_TS); |
5de17984 | 1549 | } |
02df00eb | 1550 | /* add into the if now */ |
3713b4e3 | 1551 | #undef CMD |
ff1b6e69 | 1552 | |
1b8ec87a | 1553 | if (rdev->ops->connect || rdev->ops->auth) { |
3713b4e3 JB |
1554 | i++; |
1555 | if (nla_put_u32(msg, i, NL80211_CMD_CONNECT)) | |
9360ffd1 | 1556 | goto nla_put_failure; |
ff1b6e69 JB |
1557 | } |
1558 | ||
1b8ec87a | 1559 | if (rdev->ops->disconnect || rdev->ops->deauth) { |
3713b4e3 JB |
1560 | i++; |
1561 | if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT)) | |
1562 | goto nla_put_failure; | |
1563 | } | |
1564 | ||
1565 | nla_nest_end(msg, nl_cmds); | |
86e8cf98 JB |
1566 | state->split_start++; |
1567 | if (state->split) | |
3713b4e3 JB |
1568 | break; |
1569 | case 5: | |
1b8ec87a ZG |
1570 | if (rdev->ops->remain_on_channel && |
1571 | (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && | |
3713b4e3 JB |
1572 | nla_put_u32(msg, |
1573 | NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, | |
1b8ec87a | 1574 | rdev->wiphy.max_remain_on_channel_duration)) |
3713b4e3 JB |
1575 | goto nla_put_failure; |
1576 | ||
1b8ec87a | 1577 | if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && |
3713b4e3 JB |
1578 | nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) |
1579 | goto nla_put_failure; | |
1580 | ||
1581 | if (nl80211_send_mgmt_stypes(msg, mgmt_stypes)) | |
1582 | goto nla_put_failure; | |
86e8cf98 JB |
1583 | state->split_start++; |
1584 | if (state->split) | |
3713b4e3 JB |
1585 | break; |
1586 | case 6: | |
1587 | #ifdef CONFIG_PM | |
1b8ec87a | 1588 | if (nl80211_send_wowlan(msg, rdev, state->split)) |
3713b4e3 | 1589 | goto nla_put_failure; |
86e8cf98 JB |
1590 | state->split_start++; |
1591 | if (state->split) | |
3713b4e3 JB |
1592 | break; |
1593 | #else | |
86e8cf98 | 1594 | state->split_start++; |
dfb89c56 | 1595 | #endif |
3713b4e3 JB |
1596 | case 7: |
1597 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, | |
1b8ec87a | 1598 | rdev->wiphy.software_iftypes)) |
3713b4e3 | 1599 | goto nla_put_failure; |
ff1b6e69 | 1600 | |
1b8ec87a | 1601 | if (nl80211_put_iface_combinations(&rdev->wiphy, msg, |
86e8cf98 | 1602 | state->split)) |
3713b4e3 | 1603 | goto nla_put_failure; |
7527a782 | 1604 | |
86e8cf98 JB |
1605 | state->split_start++; |
1606 | if (state->split) | |
3713b4e3 JB |
1607 | break; |
1608 | case 8: | |
1b8ec87a | 1609 | if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && |
3713b4e3 | 1610 | nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME, |
1b8ec87a | 1611 | rdev->wiphy.ap_sme_capa)) |
3713b4e3 | 1612 | goto nla_put_failure; |
7527a782 | 1613 | |
1b8ec87a | 1614 | features = rdev->wiphy.features; |
fe1abafd JB |
1615 | /* |
1616 | * We can only add the per-channel limit information if the | |
1617 | * dump is split, otherwise it makes it too big. Therefore | |
1618 | * only advertise it in that case. | |
1619 | */ | |
86e8cf98 | 1620 | if (state->split) |
fe1abafd JB |
1621 | features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS; |
1622 | if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features)) | |
3713b4e3 | 1623 | goto nla_put_failure; |
562a7480 | 1624 | |
1b8ec87a | 1625 | if (rdev->wiphy.ht_capa_mod_mask && |
3713b4e3 | 1626 | nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, |
1b8ec87a ZG |
1627 | sizeof(*rdev->wiphy.ht_capa_mod_mask), |
1628 | rdev->wiphy.ht_capa_mod_mask)) | |
3713b4e3 | 1629 | goto nla_put_failure; |
1f074bd8 | 1630 | |
1b8ec87a ZG |
1631 | if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME && |
1632 | rdev->wiphy.max_acl_mac_addrs && | |
3713b4e3 | 1633 | nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX, |
1b8ec87a | 1634 | rdev->wiphy.max_acl_mac_addrs)) |
3713b4e3 | 1635 | goto nla_put_failure; |
7e7c8926 | 1636 | |
3713b4e3 JB |
1637 | /* |
1638 | * Any information below this point is only available to | |
1639 | * applications that can deal with it being split. This | |
1640 | * helps ensure that newly added capabilities don't break | |
1641 | * older tools by overrunning their buffers. | |
1642 | * | |
1643 | * We still increment split_start so that in the split | |
1644 | * case we'll continue with more data in the next round, | |
1645 | * but break unconditionally so unsplit data stops here. | |
1646 | */ | |
86e8cf98 | 1647 | state->split_start++; |
3713b4e3 JB |
1648 | break; |
1649 | case 9: | |
1b8ec87a | 1650 | if (rdev->wiphy.extended_capabilities && |
fe1abafd | 1651 | (nla_put(msg, NL80211_ATTR_EXT_CAPA, |
1b8ec87a ZG |
1652 | rdev->wiphy.extended_capabilities_len, |
1653 | rdev->wiphy.extended_capabilities) || | |
fe1abafd | 1654 | nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK, |
1b8ec87a ZG |
1655 | rdev->wiphy.extended_capabilities_len, |
1656 | rdev->wiphy.extended_capabilities_mask))) | |
fe1abafd | 1657 | goto nla_put_failure; |
a50df0c4 | 1658 | |
1b8ec87a | 1659 | if (rdev->wiphy.vht_capa_mod_mask && |
ee2aca34 | 1660 | nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, |
1b8ec87a ZG |
1661 | sizeof(*rdev->wiphy.vht_capa_mod_mask), |
1662 | rdev->wiphy.vht_capa_mod_mask)) | |
ee2aca34 JB |
1663 | goto nla_put_failure; |
1664 | ||
be29b99a AK |
1665 | state->split_start++; |
1666 | break; | |
1667 | case 10: | |
1b8ec87a | 1668 | if (nl80211_send_coalesce(msg, rdev)) |
be29b99a AK |
1669 | goto nla_put_failure; |
1670 | ||
1b8ec87a | 1671 | if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) && |
01e0daa4 FF |
1672 | (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) || |
1673 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ))) | |
1674 | goto nla_put_failure; | |
b43504cf | 1675 | |
1b8ec87a | 1676 | if (rdev->wiphy.max_ap_assoc_sta && |
b43504cf | 1677 | nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA, |
1b8ec87a | 1678 | rdev->wiphy.max_ap_assoc_sta)) |
b43504cf JM |
1679 | goto nla_put_failure; |
1680 | ||
ad7e718c JB |
1681 | state->split_start++; |
1682 | break; | |
1683 | case 11: | |
1b8ec87a | 1684 | if (rdev->wiphy.n_vendor_commands) { |
567ffc35 JB |
1685 | const struct nl80211_vendor_cmd_info *info; |
1686 | struct nlattr *nested; | |
1687 | ||
1688 | nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA); | |
1689 | if (!nested) | |
1690 | goto nla_put_failure; | |
1691 | ||
1b8ec87a ZG |
1692 | for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) { |
1693 | info = &rdev->wiphy.vendor_commands[i].info; | |
567ffc35 JB |
1694 | if (nla_put(msg, i + 1, sizeof(*info), info)) |
1695 | goto nla_put_failure; | |
1696 | } | |
1697 | nla_nest_end(msg, nested); | |
1698 | } | |
1699 | ||
1b8ec87a | 1700 | if (rdev->wiphy.n_vendor_events) { |
567ffc35 JB |
1701 | const struct nl80211_vendor_cmd_info *info; |
1702 | struct nlattr *nested; | |
ad7e718c | 1703 | |
567ffc35 JB |
1704 | nested = nla_nest_start(msg, |
1705 | NL80211_ATTR_VENDOR_EVENTS); | |
1706 | if (!nested) | |
ad7e718c | 1707 | goto nla_put_failure; |
567ffc35 | 1708 | |
1b8ec87a ZG |
1709 | for (i = 0; i < rdev->wiphy.n_vendor_events; i++) { |
1710 | info = &rdev->wiphy.vendor_events[i]; | |
567ffc35 JB |
1711 | if (nla_put(msg, i + 1, sizeof(*info), info)) |
1712 | goto nla_put_failure; | |
1713 | } | |
1714 | nla_nest_end(msg, nested); | |
1715 | } | |
9a774c78 AO |
1716 | state->split_start++; |
1717 | break; | |
1718 | case 12: | |
1719 | if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH && | |
1720 | nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS, | |
1721 | rdev->wiphy.max_num_csa_counters)) | |
1722 | goto nla_put_failure; | |
01e0daa4 | 1723 | |
1bdd716c AN |
1724 | if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED && |
1725 | nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) | |
1726 | goto nla_put_failure; | |
1727 | ||
d75bb06b GKS |
1728 | if (nla_put(msg, NL80211_ATTR_EXT_FEATURES, |
1729 | sizeof(rdev->wiphy.ext_features), | |
1730 | rdev->wiphy.ext_features)) | |
1731 | goto nla_put_failure; | |
1732 | ||
3713b4e3 | 1733 | /* done */ |
86e8cf98 | 1734 | state->split_start = 0; |
3713b4e3 JB |
1735 | break; |
1736 | } | |
3bb20556 | 1737 | finish: |
053c095a JB |
1738 | genlmsg_end(msg, hdr); |
1739 | return 0; | |
55682965 JB |
1740 | |
1741 | nla_put_failure: | |
bc3ed28c TG |
1742 | genlmsg_cancel(msg, hdr); |
1743 | return -EMSGSIZE; | |
55682965 JB |
1744 | } |
1745 | ||
86e8cf98 JB |
1746 | static int nl80211_dump_wiphy_parse(struct sk_buff *skb, |
1747 | struct netlink_callback *cb, | |
1748 | struct nl80211_dump_wiphy_state *state) | |
1749 | { | |
1750 | struct nlattr **tb = nl80211_fam.attrbuf; | |
1751 | int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1752 | tb, nl80211_fam.maxattr, nl80211_policy); | |
1753 | /* ignore parse errors for backward compatibility */ | |
1754 | if (ret) | |
1755 | return 0; | |
1756 | ||
1757 | state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP]; | |
1758 | if (tb[NL80211_ATTR_WIPHY]) | |
1759 | state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); | |
1760 | if (tb[NL80211_ATTR_WDEV]) | |
1761 | state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32; | |
1762 | if (tb[NL80211_ATTR_IFINDEX]) { | |
1763 | struct net_device *netdev; | |
1764 | struct cfg80211_registered_device *rdev; | |
1765 | int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); | |
1766 | ||
7f2b8562 | 1767 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
86e8cf98 JB |
1768 | if (!netdev) |
1769 | return -ENODEV; | |
1770 | if (netdev->ieee80211_ptr) { | |
f26cbf40 | 1771 | rdev = wiphy_to_rdev( |
86e8cf98 JB |
1772 | netdev->ieee80211_ptr->wiphy); |
1773 | state->filter_wiphy = rdev->wiphy_idx; | |
1774 | } | |
86e8cf98 JB |
1775 | } |
1776 | ||
1777 | return 0; | |
1778 | } | |
1779 | ||
55682965 JB |
1780 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) |
1781 | { | |
645e77de | 1782 | int idx = 0, ret; |
86e8cf98 | 1783 | struct nl80211_dump_wiphy_state *state = (void *)cb->args[0]; |
1b8ec87a | 1784 | struct cfg80211_registered_device *rdev; |
3a5a423b | 1785 | |
5fe231e8 | 1786 | rtnl_lock(); |
86e8cf98 JB |
1787 | if (!state) { |
1788 | state = kzalloc(sizeof(*state), GFP_KERNEL); | |
57ed5cd6 JL |
1789 | if (!state) { |
1790 | rtnl_unlock(); | |
86e8cf98 | 1791 | return -ENOMEM; |
3713b4e3 | 1792 | } |
86e8cf98 JB |
1793 | state->filter_wiphy = -1; |
1794 | ret = nl80211_dump_wiphy_parse(skb, cb, state); | |
1795 | if (ret) { | |
1796 | kfree(state); | |
1797 | rtnl_unlock(); | |
1798 | return ret; | |
3713b4e3 | 1799 | } |
86e8cf98 | 1800 | cb->args[0] = (long)state; |
3713b4e3 JB |
1801 | } |
1802 | ||
1b8ec87a ZG |
1803 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1804 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1805 | continue; |
86e8cf98 | 1806 | if (++idx <= state->start) |
55682965 | 1807 | continue; |
86e8cf98 | 1808 | if (state->filter_wiphy != -1 && |
1b8ec87a | 1809 | state->filter_wiphy != rdev->wiphy_idx) |
3713b4e3 JB |
1810 | continue; |
1811 | /* attempt to fit multiple wiphy data chunks into the skb */ | |
1812 | do { | |
3bb20556 JB |
1813 | ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, |
1814 | skb, | |
3713b4e3 JB |
1815 | NETLINK_CB(cb->skb).portid, |
1816 | cb->nlh->nlmsg_seq, | |
86e8cf98 | 1817 | NLM_F_MULTI, state); |
3713b4e3 JB |
1818 | if (ret < 0) { |
1819 | /* | |
1820 | * If sending the wiphy data didn't fit (ENOBUFS | |
1821 | * or EMSGSIZE returned), this SKB is still | |
1822 | * empty (so it's not too big because another | |
1823 | * wiphy dataset is already in the skb) and | |
1824 | * we've not tried to adjust the dump allocation | |
1825 | * yet ... then adjust the alloc size to be | |
1826 | * bigger, and return 1 but with the empty skb. | |
1827 | * This results in an empty message being RX'ed | |
1828 | * in userspace, but that is ignored. | |
1829 | * | |
1830 | * We can then retry with the larger buffer. | |
1831 | */ | |
1832 | if ((ret == -ENOBUFS || ret == -EMSGSIZE) && | |
f12cb289 | 1833 | !skb->len && !state->split && |
3713b4e3 JB |
1834 | cb->min_dump_alloc < 4096) { |
1835 | cb->min_dump_alloc = 4096; | |
f12cb289 | 1836 | state->split_start = 0; |
d98cae64 | 1837 | rtnl_unlock(); |
3713b4e3 JB |
1838 | return 1; |
1839 | } | |
1840 | idx--; | |
1841 | break; | |
645e77de | 1842 | } |
86e8cf98 | 1843 | } while (state->split_start > 0); |
3713b4e3 | 1844 | break; |
55682965 | 1845 | } |
5fe231e8 | 1846 | rtnl_unlock(); |
55682965 | 1847 | |
86e8cf98 | 1848 | state->start = idx; |
55682965 JB |
1849 | |
1850 | return skb->len; | |
1851 | } | |
1852 | ||
86e8cf98 JB |
1853 | static int nl80211_dump_wiphy_done(struct netlink_callback *cb) |
1854 | { | |
1855 | kfree((void *)cb->args[0]); | |
1856 | return 0; | |
1857 | } | |
1858 | ||
55682965 JB |
1859 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) |
1860 | { | |
1861 | struct sk_buff *msg; | |
1b8ec87a | 1862 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
86e8cf98 | 1863 | struct nl80211_dump_wiphy_state state = {}; |
55682965 | 1864 | |
645e77de | 1865 | msg = nlmsg_new(4096, GFP_KERNEL); |
55682965 | 1866 | if (!msg) |
4c476991 | 1867 | return -ENOMEM; |
55682965 | 1868 | |
3bb20556 JB |
1869 | if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg, |
1870 | info->snd_portid, info->snd_seq, 0, | |
86e8cf98 | 1871 | &state) < 0) { |
4c476991 JB |
1872 | nlmsg_free(msg); |
1873 | return -ENOBUFS; | |
1874 | } | |
55682965 | 1875 | |
134e6375 | 1876 | return genlmsg_reply(msg, info); |
55682965 JB |
1877 | } |
1878 | ||
31888487 JM |
1879 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
1880 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
1881 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
1882 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
1883 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
1884 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
1885 | }; | |
1886 | ||
1887 | static int parse_txq_params(struct nlattr *tb[], | |
1888 | struct ieee80211_txq_params *txq_params) | |
1889 | { | |
a3304b0a | 1890 | if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] || |
31888487 JM |
1891 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || |
1892 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
1893 | return -EINVAL; | |
1894 | ||
a3304b0a | 1895 | txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]); |
31888487 JM |
1896 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); |
1897 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
1898 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
1899 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
1900 | ||
a3304b0a JB |
1901 | if (txq_params->ac >= NL80211_NUM_ACS) |
1902 | return -EINVAL; | |
1903 | ||
31888487 JM |
1904 | return 0; |
1905 | } | |
1906 | ||
f444de05 JB |
1907 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
1908 | { | |
1909 | /* | |
cc1d2806 JB |
1910 | * You can only set the channel explicitly for WDS interfaces, |
1911 | * all others have their channel managed via their respective | |
1912 | * "establish a connection" command (connect, join, ...) | |
1913 | * | |
1914 | * For AP/GO and mesh mode, the channel can be set with the | |
1915 | * channel userspace API, but is only stored and passed to the | |
1916 | * low-level driver when the AP starts or the mesh is joined. | |
1917 | * This is for backward compatibility, userspace can also give | |
1918 | * the channel in the start-ap or join-mesh commands instead. | |
f444de05 JB |
1919 | * |
1920 | * Monitors are special as they are normally slaved to | |
e8c9bd5b JB |
1921 | * whatever else is going on, so they have their own special |
1922 | * operation to set the monitor channel if possible. | |
f444de05 JB |
1923 | */ |
1924 | return !wdev || | |
1925 | wdev->iftype == NL80211_IFTYPE_AP || | |
f444de05 | 1926 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || |
074ac8df JB |
1927 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
1928 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
f444de05 JB |
1929 | } |
1930 | ||
683b6d3b JB |
1931 | static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev, |
1932 | struct genl_info *info, | |
1933 | struct cfg80211_chan_def *chandef) | |
1934 | { | |
dbeca2ea | 1935 | u32 control_freq; |
683b6d3b JB |
1936 | |
1937 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
1938 | return -EINVAL; | |
1939 | ||
1940 | control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
1941 | ||
1942 | chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq); | |
3d9d1d66 JB |
1943 | chandef->width = NL80211_CHAN_WIDTH_20_NOHT; |
1944 | chandef->center_freq1 = control_freq; | |
1945 | chandef->center_freq2 = 0; | |
683b6d3b JB |
1946 | |
1947 | /* Primary channel not allowed */ | |
1948 | if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED) | |
1949 | return -EINVAL; | |
1950 | ||
3d9d1d66 JB |
1951 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
1952 | enum nl80211_channel_type chantype; | |
1953 | ||
1954 | chantype = nla_get_u32( | |
1955 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
1956 | ||
1957 | switch (chantype) { | |
1958 | case NL80211_CHAN_NO_HT: | |
1959 | case NL80211_CHAN_HT20: | |
1960 | case NL80211_CHAN_HT40PLUS: | |
1961 | case NL80211_CHAN_HT40MINUS: | |
1962 | cfg80211_chandef_create(chandef, chandef->chan, | |
1963 | chantype); | |
1964 | break; | |
1965 | default: | |
1966 | return -EINVAL; | |
1967 | } | |
1968 | } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) { | |
1969 | chandef->width = | |
1970 | nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]); | |
1971 | if (info->attrs[NL80211_ATTR_CENTER_FREQ1]) | |
1972 | chandef->center_freq1 = | |
1973 | nla_get_u32( | |
1974 | info->attrs[NL80211_ATTR_CENTER_FREQ1]); | |
1975 | if (info->attrs[NL80211_ATTR_CENTER_FREQ2]) | |
1976 | chandef->center_freq2 = | |
1977 | nla_get_u32( | |
1978 | info->attrs[NL80211_ATTR_CENTER_FREQ2]); | |
1979 | } | |
1980 | ||
9f5e8f6e | 1981 | if (!cfg80211_chandef_valid(chandef)) |
3d9d1d66 JB |
1982 | return -EINVAL; |
1983 | ||
9f5e8f6e JB |
1984 | if (!cfg80211_chandef_usable(&rdev->wiphy, chandef, |
1985 | IEEE80211_CHAN_DISABLED)) | |
3d9d1d66 JB |
1986 | return -EINVAL; |
1987 | ||
2f301ab2 SW |
1988 | if ((chandef->width == NL80211_CHAN_WIDTH_5 || |
1989 | chandef->width == NL80211_CHAN_WIDTH_10) && | |
1990 | !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ)) | |
1991 | return -EINVAL; | |
1992 | ||
683b6d3b JB |
1993 | return 0; |
1994 | } | |
1995 | ||
f444de05 | 1996 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, |
e16821bc | 1997 | struct net_device *dev, |
f444de05 JB |
1998 | struct genl_info *info) |
1999 | { | |
683b6d3b | 2000 | struct cfg80211_chan_def chandef; |
f444de05 | 2001 | int result; |
e8c9bd5b | 2002 | enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; |
e16821bc | 2003 | struct wireless_dev *wdev = NULL; |
e8c9bd5b | 2004 | |
e16821bc JM |
2005 | if (dev) |
2006 | wdev = dev->ieee80211_ptr; | |
f444de05 JB |
2007 | if (!nl80211_can_set_dev_channel(wdev)) |
2008 | return -EOPNOTSUPP; | |
e16821bc JM |
2009 | if (wdev) |
2010 | iftype = wdev->iftype; | |
f444de05 | 2011 | |
683b6d3b JB |
2012 | result = nl80211_parse_chandef(rdev, info, &chandef); |
2013 | if (result) | |
2014 | return result; | |
f444de05 | 2015 | |
e8c9bd5b | 2016 | switch (iftype) { |
aa430da4 JB |
2017 | case NL80211_IFTYPE_AP: |
2018 | case NL80211_IFTYPE_P2P_GO: | |
923b352f AN |
2019 | if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef, |
2020 | iftype)) { | |
aa430da4 JB |
2021 | result = -EINVAL; |
2022 | break; | |
2023 | } | |
e16821bc JM |
2024 | if (wdev->beacon_interval) { |
2025 | if (!dev || !rdev->ops->set_ap_chanwidth || | |
2026 | !(rdev->wiphy.features & | |
2027 | NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) { | |
2028 | result = -EBUSY; | |
2029 | break; | |
2030 | } | |
2031 | ||
2032 | /* Only allow dynamic channel width changes */ | |
2033 | if (chandef.chan != wdev->preset_chandef.chan) { | |
2034 | result = -EBUSY; | |
2035 | break; | |
2036 | } | |
2037 | result = rdev_set_ap_chanwidth(rdev, dev, &chandef); | |
2038 | if (result) | |
2039 | break; | |
2040 | } | |
683b6d3b | 2041 | wdev->preset_chandef = chandef; |
aa430da4 JB |
2042 | result = 0; |
2043 | break; | |
cc1d2806 | 2044 | case NL80211_IFTYPE_MESH_POINT: |
683b6d3b | 2045 | result = cfg80211_set_mesh_channel(rdev, wdev, &chandef); |
cc1d2806 | 2046 | break; |
e8c9bd5b | 2047 | case NL80211_IFTYPE_MONITOR: |
683b6d3b | 2048 | result = cfg80211_set_monitor_channel(rdev, &chandef); |
e8c9bd5b | 2049 | break; |
aa430da4 | 2050 | default: |
e8c9bd5b | 2051 | result = -EINVAL; |
f444de05 | 2052 | } |
f444de05 JB |
2053 | |
2054 | return result; | |
2055 | } | |
2056 | ||
2057 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
2058 | { | |
4c476991 JB |
2059 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2060 | struct net_device *netdev = info->user_ptr[1]; | |
f444de05 | 2061 | |
e16821bc | 2062 | return __nl80211_set_channel(rdev, netdev, info); |
f444de05 JB |
2063 | } |
2064 | ||
e8347eba BJ |
2065 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
2066 | { | |
43b19952 JB |
2067 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2068 | struct net_device *dev = info->user_ptr[1]; | |
2069 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
388ac775 | 2070 | const u8 *bssid; |
e8347eba BJ |
2071 | |
2072 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2073 | return -EINVAL; | |
2074 | ||
43b19952 JB |
2075 | if (netif_running(dev)) |
2076 | return -EBUSY; | |
e8347eba | 2077 | |
43b19952 JB |
2078 | if (!rdev->ops->set_wds_peer) |
2079 | return -EOPNOTSUPP; | |
e8347eba | 2080 | |
43b19952 JB |
2081 | if (wdev->iftype != NL80211_IFTYPE_WDS) |
2082 | return -EOPNOTSUPP; | |
e8347eba BJ |
2083 | |
2084 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
e35e4d28 | 2085 | return rdev_set_wds_peer(rdev, dev, bssid); |
e8347eba BJ |
2086 | } |
2087 | ||
2088 | ||
55682965 JB |
2089 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
2090 | { | |
2091 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
2092 | struct net_device *netdev = NULL; |
2093 | struct wireless_dev *wdev; | |
a1e567c8 | 2094 | int result = 0, rem_txq_params = 0; |
31888487 | 2095 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
2096 | u32 changed; |
2097 | u8 retry_short = 0, retry_long = 0; | |
2098 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 2099 | u8 coverage_class = 0; |
55682965 | 2100 | |
5fe231e8 JB |
2101 | ASSERT_RTNL(); |
2102 | ||
f444de05 JB |
2103 | /* |
2104 | * Try to find the wiphy and netdev. Normally this | |
2105 | * function shouldn't need the netdev, but this is | |
2106 | * done for backward compatibility -- previously | |
2107 | * setting the channel was done per wiphy, but now | |
2108 | * it is per netdev. Previous userland like hostapd | |
2109 | * also passed a netdev to set_wiphy, so that it is | |
2110 | * possible to let that go to the right netdev! | |
2111 | */ | |
4bbf4d56 | 2112 | |
f444de05 JB |
2113 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
2114 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
2115 | ||
7f2b8562 | 2116 | netdev = __dev_get_by_index(genl_info_net(info), ifindex); |
5fe231e8 | 2117 | if (netdev && netdev->ieee80211_ptr) |
f26cbf40 | 2118 | rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy); |
5fe231e8 | 2119 | else |
f444de05 | 2120 | netdev = NULL; |
4bbf4d56 JB |
2121 | } |
2122 | ||
f444de05 | 2123 | if (!netdev) { |
878d9ec7 JB |
2124 | rdev = __cfg80211_rdev_from_attrs(genl_info_net(info), |
2125 | info->attrs); | |
5fe231e8 | 2126 | if (IS_ERR(rdev)) |
4c476991 | 2127 | return PTR_ERR(rdev); |
f444de05 JB |
2128 | wdev = NULL; |
2129 | netdev = NULL; | |
2130 | result = 0; | |
71fe96bf | 2131 | } else |
f444de05 | 2132 | wdev = netdev->ieee80211_ptr; |
f444de05 JB |
2133 | |
2134 | /* | |
2135 | * end workaround code, by now the rdev is available | |
2136 | * and locked, and wdev may or may not be NULL. | |
2137 | */ | |
4bbf4d56 JB |
2138 | |
2139 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
2140 | result = cfg80211_dev_rename( |
2141 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 | 2142 | |
4bbf4d56 | 2143 | if (result) |
7f2b8562 | 2144 | return result; |
31888487 JM |
2145 | |
2146 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
2147 | struct ieee80211_txq_params txq_params; | |
2148 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
2149 | ||
7f2b8562 YX |
2150 | if (!rdev->ops->set_txq_params) |
2151 | return -EOPNOTSUPP; | |
31888487 | 2152 | |
7f2b8562 YX |
2153 | if (!netdev) |
2154 | return -EINVAL; | |
f70f01c2 | 2155 | |
133a3ff2 | 2156 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
7f2b8562 YX |
2157 | netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2158 | return -EINVAL; | |
133a3ff2 | 2159 | |
7f2b8562 YX |
2160 | if (!netif_running(netdev)) |
2161 | return -ENETDOWN; | |
2b5f8b0b | 2162 | |
31888487 JM |
2163 | nla_for_each_nested(nl_txq_params, |
2164 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
2165 | rem_txq_params) { | |
ae811e21 JB |
2166 | result = nla_parse(tb, NL80211_TXQ_ATTR_MAX, |
2167 | nla_data(nl_txq_params), | |
2168 | nla_len(nl_txq_params), | |
2169 | txq_params_policy); | |
2170 | if (result) | |
2171 | return result; | |
31888487 JM |
2172 | result = parse_txq_params(tb, &txq_params); |
2173 | if (result) | |
7f2b8562 | 2174 | return result; |
31888487 | 2175 | |
e35e4d28 HG |
2176 | result = rdev_set_txq_params(rdev, netdev, |
2177 | &txq_params); | |
31888487 | 2178 | if (result) |
7f2b8562 | 2179 | return result; |
31888487 JM |
2180 | } |
2181 | } | |
55682965 | 2182 | |
72bdcf34 | 2183 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
e16821bc JM |
2184 | result = __nl80211_set_channel( |
2185 | rdev, | |
2186 | nl80211_can_set_dev_channel(wdev) ? netdev : NULL, | |
2187 | info); | |
72bdcf34 | 2188 | if (result) |
7f2b8562 | 2189 | return result; |
72bdcf34 JM |
2190 | } |
2191 | ||
98d2ff8b | 2192 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
c8442118 | 2193 | struct wireless_dev *txp_wdev = wdev; |
98d2ff8b JO |
2194 | enum nl80211_tx_power_setting type; |
2195 | int idx, mbm = 0; | |
2196 | ||
c8442118 JB |
2197 | if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER)) |
2198 | txp_wdev = NULL; | |
2199 | ||
7f2b8562 YX |
2200 | if (!rdev->ops->set_tx_power) |
2201 | return -EOPNOTSUPP; | |
98d2ff8b JO |
2202 | |
2203 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
2204 | type = nla_get_u32(info->attrs[idx]); | |
2205 | ||
2206 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
7f2b8562 YX |
2207 | (type != NL80211_TX_POWER_AUTOMATIC)) |
2208 | return -EINVAL; | |
98d2ff8b JO |
2209 | |
2210 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
2211 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
2212 | mbm = nla_get_u32(info->attrs[idx]); | |
2213 | } | |
2214 | ||
c8442118 | 2215 | result = rdev_set_tx_power(rdev, txp_wdev, type, mbm); |
98d2ff8b | 2216 | if (result) |
7f2b8562 | 2217 | return result; |
98d2ff8b JO |
2218 | } |
2219 | ||
afe0cbf8 BR |
2220 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && |
2221 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { | |
2222 | u32 tx_ant, rx_ant; | |
7f531e03 BR |
2223 | if ((!rdev->wiphy.available_antennas_tx && |
2224 | !rdev->wiphy.available_antennas_rx) || | |
7f2b8562 YX |
2225 | !rdev->ops->set_antenna) |
2226 | return -EOPNOTSUPP; | |
afe0cbf8 BR |
2227 | |
2228 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); | |
2229 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); | |
2230 | ||
a7ffac95 | 2231 | /* reject antenna configurations which don't match the |
7f531e03 BR |
2232 | * available antenna masks, except for the "all" mask */ |
2233 | if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || | |
7f2b8562 YX |
2234 | (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) |
2235 | return -EINVAL; | |
a7ffac95 | 2236 | |
7f531e03 BR |
2237 | tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; |
2238 | rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; | |
a7ffac95 | 2239 | |
e35e4d28 | 2240 | result = rdev_set_antenna(rdev, tx_ant, rx_ant); |
afe0cbf8 | 2241 | if (result) |
7f2b8562 | 2242 | return result; |
afe0cbf8 BR |
2243 | } |
2244 | ||
b9a5f8ca JM |
2245 | changed = 0; |
2246 | ||
2247 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
2248 | retry_short = nla_get_u8( | |
2249 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
7f2b8562 YX |
2250 | if (retry_short == 0) |
2251 | return -EINVAL; | |
2252 | ||
b9a5f8ca JM |
2253 | changed |= WIPHY_PARAM_RETRY_SHORT; |
2254 | } | |
2255 | ||
2256 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
2257 | retry_long = nla_get_u8( | |
2258 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
7f2b8562 YX |
2259 | if (retry_long == 0) |
2260 | return -EINVAL; | |
2261 | ||
b9a5f8ca JM |
2262 | changed |= WIPHY_PARAM_RETRY_LONG; |
2263 | } | |
2264 | ||
2265 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
2266 | frag_threshold = nla_get_u32( | |
2267 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
7f2b8562 YX |
2268 | if (frag_threshold < 256) |
2269 | return -EINVAL; | |
2270 | ||
b9a5f8ca JM |
2271 | if (frag_threshold != (u32) -1) { |
2272 | /* | |
2273 | * Fragments (apart from the last one) are required to | |
2274 | * have even length. Make the fragmentation code | |
2275 | * simpler by stripping LSB should someone try to use | |
2276 | * odd threshold value. | |
2277 | */ | |
2278 | frag_threshold &= ~0x1; | |
2279 | } | |
2280 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
2281 | } | |
2282 | ||
2283 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
2284 | rts_threshold = nla_get_u32( | |
2285 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
2286 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
2287 | } | |
2288 | ||
81077e82 | 2289 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
3057dbfd LB |
2290 | if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) |
2291 | return -EINVAL; | |
2292 | ||
81077e82 LT |
2293 | coverage_class = nla_get_u8( |
2294 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
2295 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
2296 | } | |
2297 | ||
3057dbfd LB |
2298 | if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) { |
2299 | if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION)) | |
2300 | return -EOPNOTSUPP; | |
2301 | ||
2302 | changed |= WIPHY_PARAM_DYN_ACK; | |
81077e82 LT |
2303 | } |
2304 | ||
b9a5f8ca JM |
2305 | if (changed) { |
2306 | u8 old_retry_short, old_retry_long; | |
2307 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 2308 | u8 old_coverage_class; |
b9a5f8ca | 2309 | |
7f2b8562 YX |
2310 | if (!rdev->ops->set_wiphy_params) |
2311 | return -EOPNOTSUPP; | |
b9a5f8ca JM |
2312 | |
2313 | old_retry_short = rdev->wiphy.retry_short; | |
2314 | old_retry_long = rdev->wiphy.retry_long; | |
2315 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
2316 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 2317 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
2318 | |
2319 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
2320 | rdev->wiphy.retry_short = retry_short; | |
2321 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
2322 | rdev->wiphy.retry_long = retry_long; | |
2323 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
2324 | rdev->wiphy.frag_threshold = frag_threshold; | |
2325 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
2326 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
2327 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
2328 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca | 2329 | |
e35e4d28 | 2330 | result = rdev_set_wiphy_params(rdev, changed); |
b9a5f8ca JM |
2331 | if (result) { |
2332 | rdev->wiphy.retry_short = old_retry_short; | |
2333 | rdev->wiphy.retry_long = old_retry_long; | |
2334 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
2335 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 2336 | rdev->wiphy.coverage_class = old_coverage_class; |
9189ee31 | 2337 | return result; |
b9a5f8ca JM |
2338 | } |
2339 | } | |
7f2b8562 | 2340 | return 0; |
55682965 JB |
2341 | } |
2342 | ||
71bbc994 JB |
2343 | static inline u64 wdev_id(struct wireless_dev *wdev) |
2344 | { | |
2345 | return (u64)wdev->identifier | | |
f26cbf40 | 2346 | ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32); |
71bbc994 | 2347 | } |
55682965 | 2348 | |
683b6d3b | 2349 | static int nl80211_send_chandef(struct sk_buff *msg, |
d2859df5 | 2350 | const struct cfg80211_chan_def *chandef) |
683b6d3b | 2351 | { |
601555cd JB |
2352 | if (WARN_ON(!cfg80211_chandef_valid(chandef))) |
2353 | return -EINVAL; | |
3d9d1d66 | 2354 | |
683b6d3b JB |
2355 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, |
2356 | chandef->chan->center_freq)) | |
2357 | return -ENOBUFS; | |
3d9d1d66 JB |
2358 | switch (chandef->width) { |
2359 | case NL80211_CHAN_WIDTH_20_NOHT: | |
2360 | case NL80211_CHAN_WIDTH_20: | |
2361 | case NL80211_CHAN_WIDTH_40: | |
2362 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
2363 | cfg80211_get_chandef_type(chandef))) | |
2364 | return -ENOBUFS; | |
2365 | break; | |
2366 | default: | |
2367 | break; | |
2368 | } | |
2369 | if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width)) | |
2370 | return -ENOBUFS; | |
2371 | if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1)) | |
2372 | return -ENOBUFS; | |
2373 | if (chandef->center_freq2 && | |
2374 | nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2)) | |
683b6d3b JB |
2375 | return -ENOBUFS; |
2376 | return 0; | |
2377 | } | |
2378 | ||
15e47304 | 2379 | static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, |
d726405a | 2380 | struct cfg80211_registered_device *rdev, |
8f894be2 | 2381 | struct wireless_dev *wdev, bool removal) |
55682965 | 2382 | { |
72fb2abc | 2383 | struct net_device *dev = wdev->netdev; |
8f894be2 | 2384 | u8 cmd = NL80211_CMD_NEW_INTERFACE; |
55682965 JB |
2385 | void *hdr; |
2386 | ||
8f894be2 TB |
2387 | if (removal) |
2388 | cmd = NL80211_CMD_DEL_INTERFACE; | |
2389 | ||
2390 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); | |
55682965 JB |
2391 | if (!hdr) |
2392 | return -1; | |
2393 | ||
72fb2abc JB |
2394 | if (dev && |
2395 | (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
98104fde | 2396 | nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name))) |
72fb2abc JB |
2397 | goto nla_put_failure; |
2398 | ||
2399 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
2400 | nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) || | |
71bbc994 | 2401 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
98104fde | 2402 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) || |
9360ffd1 DM |
2403 | nla_put_u32(msg, NL80211_ATTR_GENERATION, |
2404 | rdev->devlist_generation ^ | |
2405 | (cfg80211_rdev_list_generation << 2))) | |
2406 | goto nla_put_failure; | |
f5ea9120 | 2407 | |
5b7ccaf3 | 2408 | if (rdev->ops->get_channel) { |
683b6d3b JB |
2409 | int ret; |
2410 | struct cfg80211_chan_def chandef; | |
2411 | ||
2412 | ret = rdev_get_channel(rdev, wdev, &chandef); | |
2413 | if (ret == 0) { | |
2414 | if (nl80211_send_chandef(msg, &chandef)) | |
2415 | goto nla_put_failure; | |
2416 | } | |
d91df0e3 PF |
2417 | } |
2418 | ||
d55d0d59 RM |
2419 | if (rdev->ops->get_tx_power) { |
2420 | int dbm, ret; | |
2421 | ||
2422 | ret = rdev_get_tx_power(rdev, wdev, &dbm); | |
2423 | if (ret == 0 && | |
2424 | nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL, | |
2425 | DBM_TO_MBM(dbm))) | |
2426 | goto nla_put_failure; | |
2427 | } | |
2428 | ||
b84e7a05 AQ |
2429 | if (wdev->ssid_len) { |
2430 | if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid)) | |
2431 | goto nla_put_failure; | |
2432 | } | |
2433 | ||
053c095a JB |
2434 | genlmsg_end(msg, hdr); |
2435 | return 0; | |
55682965 JB |
2436 | |
2437 | nla_put_failure: | |
bc3ed28c TG |
2438 | genlmsg_cancel(msg, hdr); |
2439 | return -EMSGSIZE; | |
55682965 JB |
2440 | } |
2441 | ||
2442 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
2443 | { | |
2444 | int wp_idx = 0; | |
2445 | int if_idx = 0; | |
2446 | int wp_start = cb->args[0]; | |
2447 | int if_start = cb->args[1]; | |
f5ea9120 | 2448 | struct cfg80211_registered_device *rdev; |
55682965 JB |
2449 | struct wireless_dev *wdev; |
2450 | ||
5fe231e8 | 2451 | rtnl_lock(); |
f5ea9120 JB |
2452 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
2453 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 2454 | continue; |
bba95fef JB |
2455 | if (wp_idx < wp_start) { |
2456 | wp_idx++; | |
55682965 | 2457 | continue; |
bba95fef | 2458 | } |
55682965 JB |
2459 | if_idx = 0; |
2460 | ||
89a54e48 | 2461 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
bba95fef JB |
2462 | if (if_idx < if_start) { |
2463 | if_idx++; | |
55682965 | 2464 | continue; |
bba95fef | 2465 | } |
15e47304 | 2466 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid, |
55682965 | 2467 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
8f894be2 | 2468 | rdev, wdev, false) < 0) { |
bba95fef JB |
2469 | goto out; |
2470 | } | |
2471 | if_idx++; | |
55682965 | 2472 | } |
bba95fef JB |
2473 | |
2474 | wp_idx++; | |
55682965 | 2475 | } |
bba95fef | 2476 | out: |
5fe231e8 | 2477 | rtnl_unlock(); |
55682965 JB |
2478 | |
2479 | cb->args[0] = wp_idx; | |
2480 | cb->args[1] = if_idx; | |
2481 | ||
2482 | return skb->len; | |
2483 | } | |
2484 | ||
2485 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
2486 | { | |
2487 | struct sk_buff *msg; | |
1b8ec87a | 2488 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
72fb2abc | 2489 | struct wireless_dev *wdev = info->user_ptr[1]; |
55682965 | 2490 | |
fd2120ca | 2491 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 2492 | if (!msg) |
4c476991 | 2493 | return -ENOMEM; |
55682965 | 2494 | |
15e47304 | 2495 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
8f894be2 | 2496 | rdev, wdev, false) < 0) { |
4c476991 JB |
2497 | nlmsg_free(msg); |
2498 | return -ENOBUFS; | |
2499 | } | |
55682965 | 2500 | |
134e6375 | 2501 | return genlmsg_reply(msg, info); |
55682965 JB |
2502 | } |
2503 | ||
66f7ac50 MW |
2504 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
2505 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
2506 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
2507 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
2508 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
2509 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
e057d3c3 | 2510 | [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG }, |
66f7ac50 MW |
2511 | }; |
2512 | ||
2513 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
2514 | { | |
2515 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
2516 | int flag; | |
2517 | ||
2518 | *mntrflags = 0; | |
2519 | ||
2520 | if (!nla) | |
2521 | return -EINVAL; | |
2522 | ||
2523 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
2524 | nla, mntr_flags_policy)) | |
2525 | return -EINVAL; | |
2526 | ||
2527 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
2528 | if (flags[flag]) | |
2529 | *mntrflags |= (1<<flag); | |
2530 | ||
2531 | return 0; | |
2532 | } | |
2533 | ||
9bc383de | 2534 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
2535 | struct net_device *netdev, u8 use_4addr, |
2536 | enum nl80211_iftype iftype) | |
9bc383de | 2537 | { |
ad4bb6f8 | 2538 | if (!use_4addr) { |
f350a0a8 | 2539 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 2540 | return -EBUSY; |
9bc383de | 2541 | return 0; |
ad4bb6f8 | 2542 | } |
9bc383de JB |
2543 | |
2544 | switch (iftype) { | |
2545 | case NL80211_IFTYPE_AP_VLAN: | |
2546 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
2547 | return 0; | |
2548 | break; | |
2549 | case NL80211_IFTYPE_STATION: | |
2550 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
2551 | return 0; | |
2552 | break; | |
2553 | default: | |
2554 | break; | |
2555 | } | |
2556 | ||
2557 | return -EOPNOTSUPP; | |
2558 | } | |
2559 | ||
55682965 JB |
2560 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
2561 | { | |
4c476991 | 2562 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 2563 | struct vif_params params; |
e36d56b6 | 2564 | int err; |
04a773ad | 2565 | enum nl80211_iftype otype, ntype; |
4c476991 | 2566 | struct net_device *dev = info->user_ptr[1]; |
92ffe055 | 2567 | u32 _flags, *flags = NULL; |
ac7f9cfa | 2568 | bool change = false; |
55682965 | 2569 | |
2ec600d6 LCC |
2570 | memset(¶ms, 0, sizeof(params)); |
2571 | ||
04a773ad | 2572 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 2573 | |
723b038d | 2574 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 2575 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 2576 | if (otype != ntype) |
ac7f9cfa | 2577 | change = true; |
4c476991 JB |
2578 | if (ntype > NL80211_IFTYPE_MAX) |
2579 | return -EINVAL; | |
723b038d JB |
2580 | } |
2581 | ||
92ffe055 | 2582 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
29cbe68c JB |
2583 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
2584 | ||
4c476991 JB |
2585 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
2586 | return -EINVAL; | |
29cbe68c JB |
2587 | if (netif_running(dev)) |
2588 | return -EBUSY; | |
2589 | ||
2590 | wdev_lock(wdev); | |
2591 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2592 | IEEE80211_MAX_MESH_ID_LEN); | |
2593 | wdev->mesh_id_up_len = | |
2594 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2595 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2596 | wdev->mesh_id_up_len); | |
2597 | wdev_unlock(wdev); | |
2ec600d6 LCC |
2598 | } |
2599 | ||
8b787643 FF |
2600 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
2601 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
2602 | change = true; | |
ad4bb6f8 | 2603 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de | 2604 | if (err) |
4c476991 | 2605 | return err; |
8b787643 FF |
2606 | } else { |
2607 | params.use_4addr = -1; | |
2608 | } | |
2609 | ||
92ffe055 | 2610 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
4c476991 JB |
2611 | if (ntype != NL80211_IFTYPE_MONITOR) |
2612 | return -EINVAL; | |
92ffe055 JB |
2613 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
2614 | &_flags); | |
ac7f9cfa | 2615 | if (err) |
4c476991 | 2616 | return err; |
ac7f9cfa JB |
2617 | |
2618 | flags = &_flags; | |
2619 | change = true; | |
92ffe055 | 2620 | } |
3b85875a | 2621 | |
18003297 | 2622 | if (flags && (*flags & MONITOR_FLAG_ACTIVE) && |
e057d3c3 FF |
2623 | !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR)) |
2624 | return -EOPNOTSUPP; | |
2625 | ||
ac7f9cfa | 2626 | if (change) |
3d54d255 | 2627 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
2628 | else |
2629 | err = 0; | |
60719ffd | 2630 | |
9bc383de JB |
2631 | if (!err && params.use_4addr != -1) |
2632 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
2633 | ||
55682965 JB |
2634 | return err; |
2635 | } | |
2636 | ||
2637 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
2638 | { | |
4c476991 | 2639 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 2640 | struct vif_params params; |
84efbb84 | 2641 | struct wireless_dev *wdev; |
8f894be2 | 2642 | struct sk_buff *msg, *event; |
55682965 JB |
2643 | int err; |
2644 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 2645 | u32 flags; |
55682965 | 2646 | |
78f22b6a JB |
2647 | /* to avoid failing a new interface creation due to pending removal */ |
2648 | cfg80211_destroy_ifaces(rdev); | |
2649 | ||
2ec600d6 LCC |
2650 | memset(¶ms, 0, sizeof(params)); |
2651 | ||
55682965 JB |
2652 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
2653 | return -EINVAL; | |
2654 | ||
2655 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
2656 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
2657 | if (type > NL80211_IFTYPE_MAX) | |
2658 | return -EINVAL; | |
2659 | } | |
2660 | ||
79c97e97 | 2661 | if (!rdev->ops->add_virtual_intf || |
4c476991 JB |
2662 | !(rdev->wiphy.interface_modes & (1 << type))) |
2663 | return -EOPNOTSUPP; | |
55682965 | 2664 | |
e8f479b1 BG |
2665 | if ((type == NL80211_IFTYPE_P2P_DEVICE || |
2666 | rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) && | |
2667 | info->attrs[NL80211_ATTR_MAC]) { | |
1c18f145 AS |
2668 | nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC], |
2669 | ETH_ALEN); | |
2670 | if (!is_valid_ether_addr(params.macaddr)) | |
2671 | return -EADDRNOTAVAIL; | |
2672 | } | |
2673 | ||
9bc383de | 2674 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 2675 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 2676 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de | 2677 | if (err) |
4c476991 | 2678 | return err; |
9bc383de | 2679 | } |
8b787643 | 2680 | |
66f7ac50 MW |
2681 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
2682 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
2683 | &flags); | |
e057d3c3 | 2684 | |
18003297 | 2685 | if (!err && (flags & MONITOR_FLAG_ACTIVE) && |
e057d3c3 FF |
2686 | !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR)) |
2687 | return -EOPNOTSUPP; | |
2688 | ||
a18c7192 JB |
2689 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2690 | if (!msg) | |
2691 | return -ENOMEM; | |
2692 | ||
e35e4d28 HG |
2693 | wdev = rdev_add_virtual_intf(rdev, |
2694 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), | |
6bab2e19 TG |
2695 | NET_NAME_USER, type, err ? NULL : &flags, |
2696 | ¶ms); | |
d687cbb7 RM |
2697 | if (WARN_ON(!wdev)) { |
2698 | nlmsg_free(msg); | |
2699 | return -EPROTO; | |
2700 | } else if (IS_ERR(wdev)) { | |
1c90f9d4 | 2701 | nlmsg_free(msg); |
84efbb84 | 2702 | return PTR_ERR(wdev); |
1c90f9d4 | 2703 | } |
2ec600d6 | 2704 | |
18e5ca65 | 2705 | if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) |
78f22b6a JB |
2706 | wdev->owner_nlportid = info->snd_portid; |
2707 | ||
98104fde JB |
2708 | switch (type) { |
2709 | case NL80211_IFTYPE_MESH_POINT: | |
2710 | if (!info->attrs[NL80211_ATTR_MESH_ID]) | |
2711 | break; | |
29cbe68c JB |
2712 | wdev_lock(wdev); |
2713 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2714 | IEEE80211_MAX_MESH_ID_LEN); | |
2715 | wdev->mesh_id_up_len = | |
2716 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2717 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2718 | wdev->mesh_id_up_len); | |
2719 | wdev_unlock(wdev); | |
98104fde JB |
2720 | break; |
2721 | case NL80211_IFTYPE_P2P_DEVICE: | |
2722 | /* | |
2723 | * P2P Device doesn't have a netdev, so doesn't go | |
2724 | * through the netdev notifier and must be added here | |
2725 | */ | |
2726 | mutex_init(&wdev->mtx); | |
2727 | INIT_LIST_HEAD(&wdev->event_list); | |
2728 | spin_lock_init(&wdev->event_lock); | |
2729 | INIT_LIST_HEAD(&wdev->mgmt_registrations); | |
2730 | spin_lock_init(&wdev->mgmt_registrations_lock); | |
2731 | ||
98104fde JB |
2732 | wdev->identifier = ++rdev->wdev_id; |
2733 | list_add_rcu(&wdev->list, &rdev->wdev_list); | |
2734 | rdev->devlist_generation++; | |
98104fde JB |
2735 | break; |
2736 | default: | |
2737 | break; | |
29cbe68c JB |
2738 | } |
2739 | ||
15e47304 | 2740 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
8f894be2 | 2741 | rdev, wdev, false) < 0) { |
1c90f9d4 JB |
2742 | nlmsg_free(msg); |
2743 | return -ENOBUFS; | |
2744 | } | |
2745 | ||
8f894be2 TB |
2746 | event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2747 | if (event) { | |
2748 | if (nl80211_send_iface(event, 0, 0, 0, | |
2749 | rdev, wdev, false) < 0) { | |
2750 | nlmsg_free(event); | |
2751 | goto out; | |
2752 | } | |
2753 | ||
2754 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), | |
2755 | event, 0, NL80211_MCGRP_CONFIG, | |
2756 | GFP_KERNEL); | |
2757 | } | |
2758 | ||
2759 | out: | |
1c90f9d4 | 2760 | return genlmsg_reply(msg, info); |
55682965 JB |
2761 | } |
2762 | ||
2763 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
2764 | { | |
4c476991 | 2765 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
84efbb84 | 2766 | struct wireless_dev *wdev = info->user_ptr[1]; |
8f894be2 TB |
2767 | struct sk_buff *msg; |
2768 | int status; | |
55682965 | 2769 | |
4c476991 JB |
2770 | if (!rdev->ops->del_virtual_intf) |
2771 | return -EOPNOTSUPP; | |
55682965 | 2772 | |
8f894be2 TB |
2773 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2774 | if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) { | |
2775 | nlmsg_free(msg); | |
2776 | msg = NULL; | |
2777 | } | |
2778 | ||
84efbb84 JB |
2779 | /* |
2780 | * If we remove a wireless device without a netdev then clear | |
2781 | * user_ptr[1] so that nl80211_post_doit won't dereference it | |
2782 | * to check if it needs to do dev_put(). Otherwise it crashes | |
2783 | * since the wdev has been freed, unlike with a netdev where | |
2784 | * we need the dev_put() for the netdev to really be freed. | |
2785 | */ | |
2786 | if (!wdev->netdev) | |
2787 | info->user_ptr[1] = NULL; | |
2788 | ||
8f894be2 TB |
2789 | status = rdev_del_virtual_intf(rdev, wdev); |
2790 | if (status >= 0 && msg) | |
2791 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), | |
2792 | msg, 0, NL80211_MCGRP_CONFIG, | |
2793 | GFP_KERNEL); | |
2794 | else | |
2795 | nlmsg_free(msg); | |
2796 | ||
2797 | return status; | |
55682965 JB |
2798 | } |
2799 | ||
1d9d9213 SW |
2800 | static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) |
2801 | { | |
2802 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2803 | struct net_device *dev = info->user_ptr[1]; | |
2804 | u16 noack_map; | |
2805 | ||
2806 | if (!info->attrs[NL80211_ATTR_NOACK_MAP]) | |
2807 | return -EINVAL; | |
2808 | ||
2809 | if (!rdev->ops->set_noack_map) | |
2810 | return -EOPNOTSUPP; | |
2811 | ||
2812 | noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]); | |
2813 | ||
e35e4d28 | 2814 | return rdev_set_noack_map(rdev, dev, noack_map); |
1d9d9213 SW |
2815 | } |
2816 | ||
41ade00f JB |
2817 | struct get_key_cookie { |
2818 | struct sk_buff *msg; | |
2819 | int error; | |
b9454e83 | 2820 | int idx; |
41ade00f JB |
2821 | }; |
2822 | ||
2823 | static void get_key_callback(void *c, struct key_params *params) | |
2824 | { | |
b9454e83 | 2825 | struct nlattr *key; |
41ade00f JB |
2826 | struct get_key_cookie *cookie = c; |
2827 | ||
9360ffd1 DM |
2828 | if ((params->key && |
2829 | nla_put(cookie->msg, NL80211_ATTR_KEY_DATA, | |
2830 | params->key_len, params->key)) || | |
2831 | (params->seq && | |
2832 | nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
2833 | params->seq_len, params->seq)) || | |
2834 | (params->cipher && | |
2835 | nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
2836 | params->cipher))) | |
2837 | goto nla_put_failure; | |
41ade00f | 2838 | |
b9454e83 JB |
2839 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
2840 | if (!key) | |
2841 | goto nla_put_failure; | |
2842 | ||
9360ffd1 DM |
2843 | if ((params->key && |
2844 | nla_put(cookie->msg, NL80211_KEY_DATA, | |
2845 | params->key_len, params->key)) || | |
2846 | (params->seq && | |
2847 | nla_put(cookie->msg, NL80211_KEY_SEQ, | |
2848 | params->seq_len, params->seq)) || | |
2849 | (params->cipher && | |
2850 | nla_put_u32(cookie->msg, NL80211_KEY_CIPHER, | |
2851 | params->cipher))) | |
2852 | goto nla_put_failure; | |
b9454e83 | 2853 | |
9360ffd1 DM |
2854 | if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx)) |
2855 | goto nla_put_failure; | |
b9454e83 JB |
2856 | |
2857 | nla_nest_end(cookie->msg, key); | |
2858 | ||
41ade00f JB |
2859 | return; |
2860 | nla_put_failure: | |
2861 | cookie->error = 1; | |
2862 | } | |
2863 | ||
2864 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
2865 | { | |
4c476991 | 2866 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 2867 | int err; |
4c476991 | 2868 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2869 | u8 key_idx = 0; |
e31b8213 JB |
2870 | const u8 *mac_addr = NULL; |
2871 | bool pairwise; | |
41ade00f JB |
2872 | struct get_key_cookie cookie = { |
2873 | .error = 0, | |
2874 | }; | |
2875 | void *hdr; | |
2876 | struct sk_buff *msg; | |
2877 | ||
2878 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
2879 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
2880 | ||
3cfcf6ac | 2881 | if (key_idx > 5) |
41ade00f JB |
2882 | return -EINVAL; |
2883 | ||
2884 | if (info->attrs[NL80211_ATTR_MAC]) | |
2885 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2886 | ||
e31b8213 JB |
2887 | pairwise = !!mac_addr; |
2888 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
2889 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
2890 | if (kt >= NUM_NL80211_KEYTYPES) | |
2891 | return -EINVAL; | |
2892 | if (kt != NL80211_KEYTYPE_GROUP && | |
2893 | kt != NL80211_KEYTYPE_PAIRWISE) | |
2894 | return -EINVAL; | |
2895 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
2896 | } | |
2897 | ||
4c476991 JB |
2898 | if (!rdev->ops->get_key) |
2899 | return -EOPNOTSUPP; | |
41ade00f | 2900 | |
0fa7b391 JB |
2901 | if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) |
2902 | return -ENOENT; | |
2903 | ||
fd2120ca | 2904 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
2905 | if (!msg) |
2906 | return -ENOMEM; | |
41ade00f | 2907 | |
15e47304 | 2908 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
41ade00f | 2909 | NL80211_CMD_NEW_KEY); |
cb35fba3 | 2910 | if (!hdr) |
9fe271af | 2911 | goto nla_put_failure; |
41ade00f JB |
2912 | |
2913 | cookie.msg = msg; | |
b9454e83 | 2914 | cookie.idx = key_idx; |
41ade00f | 2915 | |
9360ffd1 DM |
2916 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
2917 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx)) | |
2918 | goto nla_put_failure; | |
2919 | if (mac_addr && | |
2920 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
2921 | goto nla_put_failure; | |
41ade00f | 2922 | |
e35e4d28 HG |
2923 | err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie, |
2924 | get_key_callback); | |
41ade00f JB |
2925 | |
2926 | if (err) | |
6c95e2a2 | 2927 | goto free_msg; |
41ade00f JB |
2928 | |
2929 | if (cookie.error) | |
2930 | goto nla_put_failure; | |
2931 | ||
2932 | genlmsg_end(msg, hdr); | |
4c476991 | 2933 | return genlmsg_reply(msg, info); |
41ade00f JB |
2934 | |
2935 | nla_put_failure: | |
2936 | err = -ENOBUFS; | |
6c95e2a2 | 2937 | free_msg: |
41ade00f | 2938 | nlmsg_free(msg); |
41ade00f JB |
2939 | return err; |
2940 | } | |
2941 | ||
2942 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
2943 | { | |
4c476991 | 2944 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
b9454e83 | 2945 | struct key_parse key; |
41ade00f | 2946 | int err; |
4c476991 | 2947 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2948 | |
b9454e83 JB |
2949 | err = nl80211_parse_key(info, &key); |
2950 | if (err) | |
2951 | return err; | |
41ade00f | 2952 | |
b9454e83 | 2953 | if (key.idx < 0) |
41ade00f JB |
2954 | return -EINVAL; |
2955 | ||
b9454e83 JB |
2956 | /* only support setting default key */ |
2957 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
2958 | return -EINVAL; |
2959 | ||
dbd2fd65 | 2960 | wdev_lock(dev->ieee80211_ptr); |
3cfcf6ac | 2961 | |
dbd2fd65 JB |
2962 | if (key.def) { |
2963 | if (!rdev->ops->set_default_key) { | |
2964 | err = -EOPNOTSUPP; | |
2965 | goto out; | |
2966 | } | |
41ade00f | 2967 | |
dbd2fd65 JB |
2968 | err = nl80211_key_allowed(dev->ieee80211_ptr); |
2969 | if (err) | |
2970 | goto out; | |
2971 | ||
e35e4d28 | 2972 | err = rdev_set_default_key(rdev, dev, key.idx, |
dbd2fd65 JB |
2973 | key.def_uni, key.def_multi); |
2974 | ||
2975 | if (err) | |
2976 | goto out; | |
fffd0934 | 2977 | |
3d23e349 | 2978 | #ifdef CONFIG_CFG80211_WEXT |
dbd2fd65 JB |
2979 | dev->ieee80211_ptr->wext.default_key = key.idx; |
2980 | #endif | |
2981 | } else { | |
2982 | if (key.def_uni || !key.def_multi) { | |
2983 | err = -EINVAL; | |
2984 | goto out; | |
2985 | } | |
2986 | ||
2987 | if (!rdev->ops->set_default_mgmt_key) { | |
2988 | err = -EOPNOTSUPP; | |
2989 | goto out; | |
2990 | } | |
2991 | ||
2992 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2993 | if (err) | |
2994 | goto out; | |
2995 | ||
e35e4d28 | 2996 | err = rdev_set_default_mgmt_key(rdev, dev, key.idx); |
dbd2fd65 JB |
2997 | if (err) |
2998 | goto out; | |
2999 | ||
3000 | #ifdef CONFIG_CFG80211_WEXT | |
3001 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; | |
08645126 | 3002 | #endif |
dbd2fd65 JB |
3003 | } |
3004 | ||
3005 | out: | |
fffd0934 | 3006 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 3007 | |
41ade00f JB |
3008 | return err; |
3009 | } | |
3010 | ||
3011 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
3012 | { | |
4c476991 | 3013 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fffd0934 | 3014 | int err; |
4c476991 | 3015 | struct net_device *dev = info->user_ptr[1]; |
b9454e83 | 3016 | struct key_parse key; |
e31b8213 | 3017 | const u8 *mac_addr = NULL; |
41ade00f | 3018 | |
b9454e83 JB |
3019 | err = nl80211_parse_key(info, &key); |
3020 | if (err) | |
3021 | return err; | |
41ade00f | 3022 | |
b9454e83 | 3023 | if (!key.p.key) |
41ade00f JB |
3024 | return -EINVAL; |
3025 | ||
41ade00f JB |
3026 | if (info->attrs[NL80211_ATTR_MAC]) |
3027 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3028 | ||
e31b8213 JB |
3029 | if (key.type == -1) { |
3030 | if (mac_addr) | |
3031 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
3032 | else | |
3033 | key.type = NL80211_KEYTYPE_GROUP; | |
3034 | } | |
3035 | ||
3036 | /* for now */ | |
3037 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
3038 | key.type != NL80211_KEYTYPE_GROUP) | |
3039 | return -EINVAL; | |
3040 | ||
4c476991 JB |
3041 | if (!rdev->ops->add_key) |
3042 | return -EOPNOTSUPP; | |
25e47c18 | 3043 | |
e31b8213 JB |
3044 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
3045 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
3046 | mac_addr)) | |
4c476991 | 3047 | return -EINVAL; |
41ade00f | 3048 | |
fffd0934 JB |
3049 | wdev_lock(dev->ieee80211_ptr); |
3050 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
3051 | if (!err) | |
e35e4d28 HG |
3052 | err = rdev_add_key(rdev, dev, key.idx, |
3053 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
3054 | mac_addr, &key.p); | |
fffd0934 | 3055 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 3056 | |
41ade00f JB |
3057 | return err; |
3058 | } | |
3059 | ||
3060 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
3061 | { | |
4c476991 | 3062 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 3063 | int err; |
4c476991 | 3064 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 3065 | u8 *mac_addr = NULL; |
b9454e83 | 3066 | struct key_parse key; |
41ade00f | 3067 | |
b9454e83 JB |
3068 | err = nl80211_parse_key(info, &key); |
3069 | if (err) | |
3070 | return err; | |
41ade00f JB |
3071 | |
3072 | if (info->attrs[NL80211_ATTR_MAC]) | |
3073 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3074 | ||
e31b8213 JB |
3075 | if (key.type == -1) { |
3076 | if (mac_addr) | |
3077 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
3078 | else | |
3079 | key.type = NL80211_KEYTYPE_GROUP; | |
3080 | } | |
3081 | ||
3082 | /* for now */ | |
3083 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
3084 | key.type != NL80211_KEYTYPE_GROUP) | |
3085 | return -EINVAL; | |
3086 | ||
4c476991 JB |
3087 | if (!rdev->ops->del_key) |
3088 | return -EOPNOTSUPP; | |
41ade00f | 3089 | |
fffd0934 JB |
3090 | wdev_lock(dev->ieee80211_ptr); |
3091 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
e31b8213 | 3092 | |
0fa7b391 | 3093 | if (key.type == NL80211_KEYTYPE_GROUP && mac_addr && |
e31b8213 JB |
3094 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) |
3095 | err = -ENOENT; | |
3096 | ||
fffd0934 | 3097 | if (!err) |
e35e4d28 HG |
3098 | err = rdev_del_key(rdev, dev, key.idx, |
3099 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
3100 | mac_addr); | |
41ade00f | 3101 | |
3d23e349 | 3102 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 3103 | if (!err) { |
b9454e83 | 3104 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 3105 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 3106 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
3107 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
3108 | } | |
3109 | #endif | |
fffd0934 | 3110 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 3111 | |
41ade00f JB |
3112 | return err; |
3113 | } | |
3114 | ||
77765eaf VT |
3115 | /* This function returns an error or the number of nested attributes */ |
3116 | static int validate_acl_mac_addrs(struct nlattr *nl_attr) | |
3117 | { | |
3118 | struct nlattr *attr; | |
3119 | int n_entries = 0, tmp; | |
3120 | ||
3121 | nla_for_each_nested(attr, nl_attr, tmp) { | |
3122 | if (nla_len(attr) != ETH_ALEN) | |
3123 | return -EINVAL; | |
3124 | ||
3125 | n_entries++; | |
3126 | } | |
3127 | ||
3128 | return n_entries; | |
3129 | } | |
3130 | ||
3131 | /* | |
3132 | * This function parses ACL information and allocates memory for ACL data. | |
3133 | * On successful return, the calling function is responsible to free the | |
3134 | * ACL buffer returned by this function. | |
3135 | */ | |
3136 | static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy, | |
3137 | struct genl_info *info) | |
3138 | { | |
3139 | enum nl80211_acl_policy acl_policy; | |
3140 | struct nlattr *attr; | |
3141 | struct cfg80211_acl_data *acl; | |
3142 | int i = 0, n_entries, tmp; | |
3143 | ||
3144 | if (!wiphy->max_acl_mac_addrs) | |
3145 | return ERR_PTR(-EOPNOTSUPP); | |
3146 | ||
3147 | if (!info->attrs[NL80211_ATTR_ACL_POLICY]) | |
3148 | return ERR_PTR(-EINVAL); | |
3149 | ||
3150 | acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]); | |
3151 | if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED && | |
3152 | acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED) | |
3153 | return ERR_PTR(-EINVAL); | |
3154 | ||
3155 | if (!info->attrs[NL80211_ATTR_MAC_ADDRS]) | |
3156 | return ERR_PTR(-EINVAL); | |
3157 | ||
3158 | n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]); | |
3159 | if (n_entries < 0) | |
3160 | return ERR_PTR(n_entries); | |
3161 | ||
3162 | if (n_entries > wiphy->max_acl_mac_addrs) | |
3163 | return ERR_PTR(-ENOTSUPP); | |
3164 | ||
3165 | acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries), | |
3166 | GFP_KERNEL); | |
3167 | if (!acl) | |
3168 | return ERR_PTR(-ENOMEM); | |
3169 | ||
3170 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) { | |
3171 | memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN); | |
3172 | i++; | |
3173 | } | |
3174 | ||
3175 | acl->n_acl_entries = n_entries; | |
3176 | acl->acl_policy = acl_policy; | |
3177 | ||
3178 | return acl; | |
3179 | } | |
3180 | ||
3181 | static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info) | |
3182 | { | |
3183 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3184 | struct net_device *dev = info->user_ptr[1]; | |
3185 | struct cfg80211_acl_data *acl; | |
3186 | int err; | |
3187 | ||
3188 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3189 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3190 | return -EOPNOTSUPP; | |
3191 | ||
3192 | if (!dev->ieee80211_ptr->beacon_interval) | |
3193 | return -EINVAL; | |
3194 | ||
3195 | acl = parse_acl_data(&rdev->wiphy, info); | |
3196 | if (IS_ERR(acl)) | |
3197 | return PTR_ERR(acl); | |
3198 | ||
3199 | err = rdev_set_mac_acl(rdev, dev, acl); | |
3200 | ||
3201 | kfree(acl); | |
3202 | ||
3203 | return err; | |
3204 | } | |
3205 | ||
a1193be8 | 3206 | static int nl80211_parse_beacon(struct nlattr *attrs[], |
8860020e | 3207 | struct cfg80211_beacon_data *bcn) |
ed1b6cc7 | 3208 | { |
8860020e | 3209 | bool haveinfo = false; |
ed1b6cc7 | 3210 | |
a1193be8 SW |
3211 | if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) || |
3212 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) || | |
3213 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) || | |
3214 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP])) | |
f4a11bb0 JB |
3215 | return -EINVAL; |
3216 | ||
8860020e | 3217 | memset(bcn, 0, sizeof(*bcn)); |
ed1b6cc7 | 3218 | |
a1193be8 SW |
3219 | if (attrs[NL80211_ATTR_BEACON_HEAD]) { |
3220 | bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]); | |
3221 | bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]); | |
8860020e JB |
3222 | if (!bcn->head_len) |
3223 | return -EINVAL; | |
3224 | haveinfo = true; | |
ed1b6cc7 JB |
3225 | } |
3226 | ||
a1193be8 SW |
3227 | if (attrs[NL80211_ATTR_BEACON_TAIL]) { |
3228 | bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]); | |
3229 | bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]); | |
8860020e | 3230 | haveinfo = true; |
ed1b6cc7 JB |
3231 | } |
3232 | ||
4c476991 JB |
3233 | if (!haveinfo) |
3234 | return -EINVAL; | |
3b85875a | 3235 | |
a1193be8 SW |
3236 | if (attrs[NL80211_ATTR_IE]) { |
3237 | bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]); | |
3238 | bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]); | |
9946ecfb JM |
3239 | } |
3240 | ||
a1193be8 | 3241 | if (attrs[NL80211_ATTR_IE_PROBE_RESP]) { |
8860020e | 3242 | bcn->proberesp_ies = |
a1193be8 | 3243 | nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]); |
8860020e | 3244 | bcn->proberesp_ies_len = |
a1193be8 | 3245 | nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]); |
9946ecfb JM |
3246 | } |
3247 | ||
a1193be8 | 3248 | if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) { |
8860020e | 3249 | bcn->assocresp_ies = |
a1193be8 | 3250 | nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
8860020e | 3251 | bcn->assocresp_ies_len = |
a1193be8 | 3252 | nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
9946ecfb JM |
3253 | } |
3254 | ||
a1193be8 SW |
3255 | if (attrs[NL80211_ATTR_PROBE_RESP]) { |
3256 | bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]); | |
3257 | bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]); | |
00f740e1 AN |
3258 | } |
3259 | ||
8860020e JB |
3260 | return 0; |
3261 | } | |
3262 | ||
46c1dd0c FF |
3263 | static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev, |
3264 | struct cfg80211_ap_settings *params) | |
3265 | { | |
3266 | struct wireless_dev *wdev; | |
3267 | bool ret = false; | |
3268 | ||
89a54e48 | 3269 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
46c1dd0c FF |
3270 | if (wdev->iftype != NL80211_IFTYPE_AP && |
3271 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
3272 | continue; | |
3273 | ||
683b6d3b | 3274 | if (!wdev->preset_chandef.chan) |
46c1dd0c FF |
3275 | continue; |
3276 | ||
683b6d3b | 3277 | params->chandef = wdev->preset_chandef; |
46c1dd0c FF |
3278 | ret = true; |
3279 | break; | |
3280 | } | |
3281 | ||
46c1dd0c FF |
3282 | return ret; |
3283 | } | |
3284 | ||
e39e5b5e JM |
3285 | static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev, |
3286 | enum nl80211_auth_type auth_type, | |
3287 | enum nl80211_commands cmd) | |
3288 | { | |
3289 | if (auth_type > NL80211_AUTHTYPE_MAX) | |
3290 | return false; | |
3291 | ||
3292 | switch (cmd) { | |
3293 | case NL80211_CMD_AUTHENTICATE: | |
3294 | if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) && | |
3295 | auth_type == NL80211_AUTHTYPE_SAE) | |
3296 | return false; | |
3297 | return true; | |
3298 | case NL80211_CMD_CONNECT: | |
3299 | case NL80211_CMD_START_AP: | |
3300 | /* SAE not supported yet */ | |
3301 | if (auth_type == NL80211_AUTHTYPE_SAE) | |
3302 | return false; | |
3303 | return true; | |
3304 | default: | |
3305 | return false; | |
3306 | } | |
3307 | } | |
3308 | ||
8860020e JB |
3309 | static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) |
3310 | { | |
3311 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3312 | struct net_device *dev = info->user_ptr[1]; | |
3313 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
3314 | struct cfg80211_ap_settings params; | |
3315 | int err; | |
3316 | ||
3317 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3318 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3319 | return -EOPNOTSUPP; | |
3320 | ||
3321 | if (!rdev->ops->start_ap) | |
3322 | return -EOPNOTSUPP; | |
3323 | ||
3324 | if (wdev->beacon_interval) | |
3325 | return -EALREADY; | |
3326 | ||
3327 | memset(¶ms, 0, sizeof(params)); | |
3328 | ||
3329 | /* these are required for START_AP */ | |
3330 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
3331 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
3332 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) | |
3333 | return -EINVAL; | |
3334 | ||
a1193be8 | 3335 | err = nl80211_parse_beacon(info->attrs, ¶ms.beacon); |
8860020e JB |
3336 | if (err) |
3337 | return err; | |
3338 | ||
3339 | params.beacon_interval = | |
3340 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3341 | params.dtim_period = | |
3342 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
3343 | ||
3344 | err = cfg80211_validate_beacon_int(rdev, params.beacon_interval); | |
3345 | if (err) | |
3346 | return err; | |
3347 | ||
3348 | /* | |
3349 | * In theory, some of these attributes should be required here | |
3350 | * but since they were not used when the command was originally | |
3351 | * added, keep them optional for old user space programs to let | |
3352 | * them continue to work with drivers that do not need the | |
3353 | * additional information -- drivers must check! | |
3354 | */ | |
3355 | if (info->attrs[NL80211_ATTR_SSID]) { | |
3356 | params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3357 | params.ssid_len = | |
3358 | nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3359 | if (params.ssid_len == 0 || | |
3360 | params.ssid_len > IEEE80211_MAX_SSID_LEN) | |
3361 | return -EINVAL; | |
3362 | } | |
3363 | ||
3364 | if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) { | |
3365 | params.hidden_ssid = nla_get_u32( | |
3366 | info->attrs[NL80211_ATTR_HIDDEN_SSID]); | |
3367 | if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE && | |
3368 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN && | |
3369 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS) | |
3370 | return -EINVAL; | |
3371 | } | |
3372 | ||
3373 | params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; | |
3374 | ||
3375 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
3376 | params.auth_type = nla_get_u32( | |
3377 | info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
e39e5b5e JM |
3378 | if (!nl80211_valid_auth_type(rdev, params.auth_type, |
3379 | NL80211_CMD_START_AP)) | |
8860020e JB |
3380 | return -EINVAL; |
3381 | } else | |
3382 | params.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
3383 | ||
3384 | err = nl80211_crypto_settings(rdev, info, ¶ms.crypto, | |
3385 | NL80211_MAX_NR_CIPHER_SUITES); | |
3386 | if (err) | |
3387 | return err; | |
3388 | ||
1b658f11 VT |
3389 | if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) { |
3390 | if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) | |
3391 | return -EOPNOTSUPP; | |
3392 | params.inactivity_timeout = nla_get_u16( | |
3393 | info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); | |
3394 | } | |
3395 | ||
53cabad7 JB |
3396 | if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { |
3397 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3398 | return -EINVAL; | |
3399 | params.p2p_ctwindow = | |
3400 | nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); | |
3401 | if (params.p2p_ctwindow > 127) | |
3402 | return -EINVAL; | |
3403 | if (params.p2p_ctwindow != 0 && | |
3404 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) | |
3405 | return -EINVAL; | |
3406 | } | |
3407 | ||
3408 | if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { | |
3409 | u8 tmp; | |
3410 | ||
3411 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3412 | return -EINVAL; | |
3413 | tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); | |
3414 | if (tmp > 1) | |
3415 | return -EINVAL; | |
3416 | params.p2p_opp_ps = tmp; | |
3417 | if (params.p2p_opp_ps != 0 && | |
3418 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) | |
3419 | return -EINVAL; | |
3420 | } | |
3421 | ||
aa430da4 | 3422 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
683b6d3b JB |
3423 | err = nl80211_parse_chandef(rdev, info, ¶ms.chandef); |
3424 | if (err) | |
3425 | return err; | |
3426 | } else if (wdev->preset_chandef.chan) { | |
3427 | params.chandef = wdev->preset_chandef; | |
46c1dd0c | 3428 | } else if (!nl80211_get_ap_channel(rdev, ¶ms)) |
aa430da4 JB |
3429 | return -EINVAL; |
3430 | ||
923b352f AN |
3431 | if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef, |
3432 | wdev->iftype)) | |
aa430da4 JB |
3433 | return -EINVAL; |
3434 | ||
18998c38 EP |
3435 | if (info->attrs[NL80211_ATTR_SMPS_MODE]) { |
3436 | params.smps_mode = | |
3437 | nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]); | |
3438 | switch (params.smps_mode) { | |
3439 | case NL80211_SMPS_OFF: | |
3440 | break; | |
3441 | case NL80211_SMPS_STATIC: | |
3442 | if (!(rdev->wiphy.features & | |
3443 | NL80211_FEATURE_STATIC_SMPS)) | |
3444 | return -EINVAL; | |
3445 | break; | |
3446 | case NL80211_SMPS_DYNAMIC: | |
3447 | if (!(rdev->wiphy.features & | |
3448 | NL80211_FEATURE_DYNAMIC_SMPS)) | |
3449 | return -EINVAL; | |
3450 | break; | |
3451 | default: | |
3452 | return -EINVAL; | |
3453 | } | |
3454 | } else { | |
3455 | params.smps_mode = NL80211_SMPS_OFF; | |
3456 | } | |
3457 | ||
4baf6bea OO |
3458 | if (info->attrs[NL80211_ATTR_ACL_POLICY]) { |
3459 | params.acl = parse_acl_data(&rdev->wiphy, info); | |
3460 | if (IS_ERR(params.acl)) | |
3461 | return PTR_ERR(params.acl); | |
3462 | } | |
3463 | ||
c56589ed | 3464 | wdev_lock(wdev); |
e35e4d28 | 3465 | err = rdev_start_ap(rdev, dev, ¶ms); |
46c1dd0c | 3466 | if (!err) { |
683b6d3b | 3467 | wdev->preset_chandef = params.chandef; |
8860020e | 3468 | wdev->beacon_interval = params.beacon_interval; |
9e0e2961 | 3469 | wdev->chandef = params.chandef; |
06e191e2 AQ |
3470 | wdev->ssid_len = params.ssid_len; |
3471 | memcpy(wdev->ssid, params.ssid, wdev->ssid_len); | |
46c1dd0c | 3472 | } |
c56589ed | 3473 | wdev_unlock(wdev); |
77765eaf VT |
3474 | |
3475 | kfree(params.acl); | |
3476 | ||
56d1893d | 3477 | return err; |
ed1b6cc7 JB |
3478 | } |
3479 | ||
8860020e JB |
3480 | static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info) |
3481 | { | |
3482 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3483 | struct net_device *dev = info->user_ptr[1]; | |
3484 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
3485 | struct cfg80211_beacon_data params; | |
3486 | int err; | |
3487 | ||
3488 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3489 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3490 | return -EOPNOTSUPP; | |
3491 | ||
3492 | if (!rdev->ops->change_beacon) | |
3493 | return -EOPNOTSUPP; | |
3494 | ||
3495 | if (!wdev->beacon_interval) | |
3496 | return -EINVAL; | |
3497 | ||
a1193be8 | 3498 | err = nl80211_parse_beacon(info->attrs, ¶ms); |
8860020e JB |
3499 | if (err) |
3500 | return err; | |
3501 | ||
c56589ed SW |
3502 | wdev_lock(wdev); |
3503 | err = rdev_change_beacon(rdev, dev, ¶ms); | |
3504 | wdev_unlock(wdev); | |
3505 | ||
3506 | return err; | |
8860020e JB |
3507 | } |
3508 | ||
3509 | static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info) | |
ed1b6cc7 | 3510 | { |
4c476991 JB |
3511 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3512 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 | 3513 | |
7c8d5e03 | 3514 | return cfg80211_stop_ap(rdev, dev, false); |
ed1b6cc7 JB |
3515 | } |
3516 | ||
5727ef1b JB |
3517 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
3518 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
3519 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
3520 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 3521 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
b39c48fa | 3522 | [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG }, |
d83023da | 3523 | [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG }, |
5727ef1b JB |
3524 | }; |
3525 | ||
eccb8e8f | 3526 | static int parse_station_flags(struct genl_info *info, |
bdd3ae3d | 3527 | enum nl80211_iftype iftype, |
eccb8e8f | 3528 | struct station_parameters *params) |
5727ef1b JB |
3529 | { |
3530 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 3531 | struct nlattr *nla; |
5727ef1b JB |
3532 | int flag; |
3533 | ||
eccb8e8f JB |
3534 | /* |
3535 | * Try parsing the new attribute first so userspace | |
3536 | * can specify both for older kernels. | |
3537 | */ | |
3538 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
3539 | if (nla) { | |
3540 | struct nl80211_sta_flag_update *sta_flags; | |
3541 | ||
3542 | sta_flags = nla_data(nla); | |
3543 | params->sta_flags_mask = sta_flags->mask; | |
3544 | params->sta_flags_set = sta_flags->set; | |
77ee7c89 | 3545 | params->sta_flags_set &= params->sta_flags_mask; |
eccb8e8f JB |
3546 | if ((params->sta_flags_mask | |
3547 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
3548 | return -EINVAL; | |
3549 | return 0; | |
3550 | } | |
3551 | ||
3552 | /* if present, parse the old attribute */ | |
5727ef1b | 3553 | |
eccb8e8f | 3554 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
3555 | if (!nla) |
3556 | return 0; | |
3557 | ||
3558 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
3559 | nla, sta_flags_policy)) | |
3560 | return -EINVAL; | |
3561 | ||
bdd3ae3d JB |
3562 | /* |
3563 | * Only allow certain flags for interface types so that | |
3564 | * other attributes are silently ignored. Remember that | |
3565 | * this is backward compatibility code with old userspace | |
3566 | * and shouldn't be hit in other cases anyway. | |
3567 | */ | |
3568 | switch (iftype) { | |
3569 | case NL80211_IFTYPE_AP: | |
3570 | case NL80211_IFTYPE_AP_VLAN: | |
3571 | case NL80211_IFTYPE_P2P_GO: | |
3572 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3573 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
3574 | BIT(NL80211_STA_FLAG_WME) | | |
3575 | BIT(NL80211_STA_FLAG_MFP); | |
3576 | break; | |
3577 | case NL80211_IFTYPE_P2P_CLIENT: | |
3578 | case NL80211_IFTYPE_STATION: | |
3579 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3580 | BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3581 | break; | |
3582 | case NL80211_IFTYPE_MESH_POINT: | |
3583 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3584 | BIT(NL80211_STA_FLAG_MFP) | | |
3585 | BIT(NL80211_STA_FLAG_AUTHORIZED); | |
3586 | default: | |
3587 | return -EINVAL; | |
3588 | } | |
5727ef1b | 3589 | |
3383b5a6 JB |
3590 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) { |
3591 | if (flags[flag]) { | |
eccb8e8f | 3592 | params->sta_flags_set |= (1<<flag); |
5727ef1b | 3593 | |
3383b5a6 JB |
3594 | /* no longer support new API additions in old API */ |
3595 | if (flag > NL80211_STA_FLAG_MAX_OLD_API) | |
3596 | return -EINVAL; | |
3597 | } | |
3598 | } | |
3599 | ||
5727ef1b JB |
3600 | return 0; |
3601 | } | |
3602 | ||
c8dcfd8a FF |
3603 | static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, |
3604 | int attr) | |
3605 | { | |
3606 | struct nlattr *rate; | |
8eb41c8d VK |
3607 | u32 bitrate; |
3608 | u16 bitrate_compat; | |
b51f3bee | 3609 | enum nl80211_attrs rate_flg; |
c8dcfd8a FF |
3610 | |
3611 | rate = nla_nest_start(msg, attr); | |
3612 | if (!rate) | |
db9c64cf | 3613 | return false; |
c8dcfd8a FF |
3614 | |
3615 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
3616 | bitrate = cfg80211_calculate_bitrate(info); | |
8eb41c8d VK |
3617 | /* report 16-bit bitrate only if we can */ |
3618 | bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0; | |
db9c64cf JB |
3619 | if (bitrate > 0 && |
3620 | nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) | |
3621 | return false; | |
3622 | if (bitrate_compat > 0 && | |
3623 | nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) | |
3624 | return false; | |
3625 | ||
b51f3bee JB |
3626 | switch (info->bw) { |
3627 | case RATE_INFO_BW_5: | |
3628 | rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH; | |
3629 | break; | |
3630 | case RATE_INFO_BW_10: | |
3631 | rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH; | |
3632 | break; | |
3633 | default: | |
3634 | WARN_ON(1); | |
3635 | /* fall through */ | |
3636 | case RATE_INFO_BW_20: | |
3637 | rate_flg = 0; | |
3638 | break; | |
3639 | case RATE_INFO_BW_40: | |
3640 | rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH; | |
3641 | break; | |
3642 | case RATE_INFO_BW_80: | |
3643 | rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH; | |
3644 | break; | |
3645 | case RATE_INFO_BW_160: | |
3646 | rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH; | |
3647 | break; | |
3648 | } | |
3649 | ||
3650 | if (rate_flg && nla_put_flag(msg, rate_flg)) | |
3651 | return false; | |
3652 | ||
db9c64cf JB |
3653 | if (info->flags & RATE_INFO_FLAGS_MCS) { |
3654 | if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) | |
3655 | return false; | |
db9c64cf JB |
3656 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI && |
3657 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) | |
3658 | return false; | |
3659 | } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) { | |
3660 | if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs)) | |
3661 | return false; | |
3662 | if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss)) | |
3663 | return false; | |
db9c64cf JB |
3664 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI && |
3665 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) | |
3666 | return false; | |
3667 | } | |
c8dcfd8a FF |
3668 | |
3669 | nla_nest_end(msg, rate); | |
3670 | return true; | |
c8dcfd8a FF |
3671 | } |
3672 | ||
119363c7 FF |
3673 | static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal, |
3674 | int id) | |
3675 | { | |
3676 | void *attr; | |
3677 | int i = 0; | |
3678 | ||
3679 | if (!mask) | |
3680 | return true; | |
3681 | ||
3682 | attr = nla_nest_start(msg, id); | |
3683 | if (!attr) | |
3684 | return false; | |
3685 | ||
3686 | for (i = 0; i < IEEE80211_MAX_CHAINS; i++) { | |
3687 | if (!(mask & BIT(i))) | |
3688 | continue; | |
3689 | ||
3690 | if (nla_put_u8(msg, i, signal[i])) | |
3691 | return false; | |
3692 | } | |
3693 | ||
3694 | nla_nest_end(msg, attr); | |
3695 | ||
3696 | return true; | |
3697 | } | |
3698 | ||
cf5ead82 JB |
3699 | static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid, |
3700 | u32 seq, int flags, | |
66266b3a JL |
3701 | struct cfg80211_registered_device *rdev, |
3702 | struct net_device *dev, | |
98b62183 | 3703 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
3704 | { |
3705 | void *hdr; | |
f4263c98 | 3706 | struct nlattr *sinfoattr, *bss_param; |
fd5b74dc | 3707 | |
cf5ead82 | 3708 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
fd5b74dc JB |
3709 | if (!hdr) |
3710 | return -1; | |
3711 | ||
9360ffd1 DM |
3712 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
3713 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
3714 | nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation)) | |
3715 | goto nla_put_failure; | |
f5ea9120 | 3716 | |
2ec600d6 LCC |
3717 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
3718 | if (!sinfoattr) | |
fd5b74dc | 3719 | goto nla_put_failure; |
319090bf JB |
3720 | |
3721 | #define PUT_SINFO(attr, memb, type) do { \ | |
3722 | if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \ | |
3723 | nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \ | |
3724 | sinfo->memb)) \ | |
3725 | goto nla_put_failure; \ | |
3726 | } while (0) | |
3727 | ||
3728 | PUT_SINFO(CONNECTED_TIME, connected_time, u32); | |
3729 | PUT_SINFO(INACTIVE_TIME, inactive_time, u32); | |
3730 | ||
3731 | if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) | | |
3732 | BIT(NL80211_STA_INFO_RX_BYTES64)) && | |
9360ffd1 | 3733 | nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES, |
42745e03 | 3734 | (u32)sinfo->rx_bytes)) |
9360ffd1 | 3735 | goto nla_put_failure; |
319090bf JB |
3736 | |
3737 | if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) | | |
3738 | BIT(NL80211_STA_INFO_TX_BYTES64)) && | |
9360ffd1 | 3739 | nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES, |
42745e03 VK |
3740 | (u32)sinfo->tx_bytes)) |
3741 | goto nla_put_failure; | |
319090bf JB |
3742 | |
3743 | PUT_SINFO(RX_BYTES64, rx_bytes, u64); | |
3744 | PUT_SINFO(TX_BYTES64, tx_bytes, u64); | |
3745 | PUT_SINFO(LLID, llid, u16); | |
3746 | PUT_SINFO(PLID, plid, u16); | |
3747 | PUT_SINFO(PLINK_STATE, plink_state, u8); | |
3748 | ||
66266b3a JL |
3749 | switch (rdev->wiphy.signal_type) { |
3750 | case CFG80211_SIGNAL_TYPE_MBM: | |
319090bf JB |
3751 | PUT_SINFO(SIGNAL, signal, u8); |
3752 | PUT_SINFO(SIGNAL_AVG, signal_avg, u8); | |
66266b3a JL |
3753 | break; |
3754 | default: | |
3755 | break; | |
3756 | } | |
319090bf | 3757 | if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) { |
119363c7 FF |
3758 | if (!nl80211_put_signal(msg, sinfo->chains, |
3759 | sinfo->chain_signal, | |
3760 | NL80211_STA_INFO_CHAIN_SIGNAL)) | |
3761 | goto nla_put_failure; | |
3762 | } | |
319090bf | 3763 | if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) { |
119363c7 FF |
3764 | if (!nl80211_put_signal(msg, sinfo->chains, |
3765 | sinfo->chain_signal_avg, | |
3766 | NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) | |
3767 | goto nla_put_failure; | |
3768 | } | |
319090bf | 3769 | if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) { |
c8dcfd8a FF |
3770 | if (!nl80211_put_sta_rate(msg, &sinfo->txrate, |
3771 | NL80211_STA_INFO_TX_BITRATE)) | |
3772 | goto nla_put_failure; | |
3773 | } | |
319090bf | 3774 | if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) { |
c8dcfd8a FF |
3775 | if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, |
3776 | NL80211_STA_INFO_RX_BITRATE)) | |
420e7fab | 3777 | goto nla_put_failure; |
420e7fab | 3778 | } |
319090bf JB |
3779 | |
3780 | PUT_SINFO(RX_PACKETS, rx_packets, u32); | |
3781 | PUT_SINFO(TX_PACKETS, tx_packets, u32); | |
3782 | PUT_SINFO(TX_RETRIES, tx_retries, u32); | |
3783 | PUT_SINFO(TX_FAILED, tx_failed, u32); | |
3784 | PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32); | |
3785 | PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32); | |
3786 | PUT_SINFO(LOCAL_PM, local_pm, u32); | |
3787 | PUT_SINFO(PEER_PM, peer_pm, u32); | |
3788 | PUT_SINFO(NONPEER_PM, nonpeer_pm, u32); | |
3789 | ||
3790 | if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) { | |
f4263c98 PS |
3791 | bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM); |
3792 | if (!bss_param) | |
3793 | goto nla_put_failure; | |
3794 | ||
9360ffd1 DM |
3795 | if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) && |
3796 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) || | |
3797 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) && | |
3798 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) || | |
3799 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) && | |
3800 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) || | |
3801 | nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD, | |
3802 | sinfo->bss_param.dtim_period) || | |
3803 | nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL, | |
3804 | sinfo->bss_param.beacon_interval)) | |
3805 | goto nla_put_failure; | |
f4263c98 PS |
3806 | |
3807 | nla_nest_end(msg, bss_param); | |
3808 | } | |
319090bf | 3809 | if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) && |
9360ffd1 DM |
3810 | nla_put(msg, NL80211_STA_INFO_STA_FLAGS, |
3811 | sizeof(struct nl80211_sta_flag_update), | |
3812 | &sinfo->sta_flags)) | |
3813 | goto nla_put_failure; | |
319090bf JB |
3814 | |
3815 | PUT_SINFO(T_OFFSET, t_offset, u64); | |
3816 | PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64); | |
a76b1942 JB |
3817 | PUT_SINFO(BEACON_RX, rx_beacon, u64); |
3818 | PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8); | |
319090bf JB |
3819 | |
3820 | #undef PUT_SINFO | |
6de39808 JB |
3821 | |
3822 | if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) { | |
3823 | struct nlattr *tidsattr; | |
3824 | int tid; | |
3825 | ||
3826 | tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS); | |
3827 | if (!tidsattr) | |
3828 | goto nla_put_failure; | |
3829 | ||
3830 | for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) { | |
3831 | struct cfg80211_tid_stats *tidstats; | |
3832 | struct nlattr *tidattr; | |
3833 | ||
3834 | tidstats = &sinfo->pertid[tid]; | |
3835 | ||
3836 | if (!tidstats->filled) | |
3837 | continue; | |
3838 | ||
3839 | tidattr = nla_nest_start(msg, tid + 1); | |
3840 | if (!tidattr) | |
3841 | goto nla_put_failure; | |
3842 | ||
3843 | #define PUT_TIDVAL(attr, memb, type) do { \ | |
3844 | if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \ | |
3845 | nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \ | |
3846 | tidstats->memb)) \ | |
3847 | goto nla_put_failure; \ | |
3848 | } while (0) | |
3849 | ||
3850 | PUT_TIDVAL(RX_MSDU, rx_msdu, u64); | |
3851 | PUT_TIDVAL(TX_MSDU, tx_msdu, u64); | |
3852 | PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64); | |
3853 | PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64); | |
3854 | ||
3855 | #undef PUT_TIDVAL | |
3856 | nla_nest_end(msg, tidattr); | |
3857 | } | |
3858 | ||
3859 | nla_nest_end(msg, tidsattr); | |
3860 | } | |
3861 | ||
2ec600d6 | 3862 | nla_nest_end(msg, sinfoattr); |
fd5b74dc | 3863 | |
319090bf | 3864 | if (sinfo->assoc_req_ies_len && |
9360ffd1 DM |
3865 | nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len, |
3866 | sinfo->assoc_req_ies)) | |
3867 | goto nla_put_failure; | |
50d3dfb7 | 3868 | |
053c095a JB |
3869 | genlmsg_end(msg, hdr); |
3870 | return 0; | |
fd5b74dc JB |
3871 | |
3872 | nla_put_failure: | |
bc3ed28c TG |
3873 | genlmsg_cancel(msg, hdr); |
3874 | return -EMSGSIZE; | |
fd5b74dc JB |
3875 | } |
3876 | ||
2ec600d6 | 3877 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 3878 | struct netlink_callback *cb) |
2ec600d6 | 3879 | { |
2ec600d6 | 3880 | struct station_info sinfo; |
1b8ec87a | 3881 | struct cfg80211_registered_device *rdev; |
97990a06 | 3882 | struct wireless_dev *wdev; |
2ec600d6 | 3883 | u8 mac_addr[ETH_ALEN]; |
97990a06 | 3884 | int sta_idx = cb->args[2]; |
2ec600d6 | 3885 | int err; |
2ec600d6 | 3886 | |
1b8ec87a | 3887 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
67748893 JB |
3888 | if (err) |
3889 | return err; | |
bba95fef | 3890 | |
97990a06 JB |
3891 | if (!wdev->netdev) { |
3892 | err = -EINVAL; | |
3893 | goto out_err; | |
3894 | } | |
3895 | ||
1b8ec87a | 3896 | if (!rdev->ops->dump_station) { |
eec60b03 | 3897 | err = -EOPNOTSUPP; |
bba95fef JB |
3898 | goto out_err; |
3899 | } | |
3900 | ||
bba95fef | 3901 | while (1) { |
f612cedf | 3902 | memset(&sinfo, 0, sizeof(sinfo)); |
1b8ec87a | 3903 | err = rdev_dump_station(rdev, wdev->netdev, sta_idx, |
e35e4d28 | 3904 | mac_addr, &sinfo); |
bba95fef JB |
3905 | if (err == -ENOENT) |
3906 | break; | |
3907 | if (err) | |
3b85875a | 3908 | goto out_err; |
bba95fef | 3909 | |
cf5ead82 | 3910 | if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION, |
15e47304 | 3911 | NETLINK_CB(cb->skb).portid, |
bba95fef | 3912 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
1b8ec87a | 3913 | rdev, wdev->netdev, mac_addr, |
bba95fef JB |
3914 | &sinfo) < 0) |
3915 | goto out; | |
3916 | ||
3917 | sta_idx++; | |
3918 | } | |
3919 | ||
3920 | ||
3921 | out: | |
97990a06 | 3922 | cb->args[2] = sta_idx; |
bba95fef | 3923 | err = skb->len; |
bba95fef | 3924 | out_err: |
1b8ec87a | 3925 | nl80211_finish_wdev_dump(rdev); |
bba95fef JB |
3926 | |
3927 | return err; | |
2ec600d6 | 3928 | } |
fd5b74dc | 3929 | |
5727ef1b JB |
3930 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
3931 | { | |
4c476991 JB |
3932 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3933 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 | 3934 | struct station_info sinfo; |
fd5b74dc JB |
3935 | struct sk_buff *msg; |
3936 | u8 *mac_addr = NULL; | |
4c476991 | 3937 | int err; |
fd5b74dc | 3938 | |
2ec600d6 | 3939 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
3940 | |
3941 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3942 | return -EINVAL; | |
3943 | ||
3944 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3945 | ||
4c476991 JB |
3946 | if (!rdev->ops->get_station) |
3947 | return -EOPNOTSUPP; | |
3b85875a | 3948 | |
e35e4d28 | 3949 | err = rdev_get_station(rdev, dev, mac_addr, &sinfo); |
fd5b74dc | 3950 | if (err) |
4c476991 | 3951 | return err; |
2ec600d6 | 3952 | |
fd2120ca | 3953 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc | 3954 | if (!msg) |
4c476991 | 3955 | return -ENOMEM; |
fd5b74dc | 3956 | |
cf5ead82 JB |
3957 | if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, |
3958 | info->snd_portid, info->snd_seq, 0, | |
66266b3a | 3959 | rdev, dev, mac_addr, &sinfo) < 0) { |
4c476991 JB |
3960 | nlmsg_free(msg); |
3961 | return -ENOBUFS; | |
3962 | } | |
3b85875a | 3963 | |
4c476991 | 3964 | return genlmsg_reply(msg, info); |
5727ef1b JB |
3965 | } |
3966 | ||
77ee7c89 JB |
3967 | int cfg80211_check_station_change(struct wiphy *wiphy, |
3968 | struct station_parameters *params, | |
3969 | enum cfg80211_station_type statype) | |
3970 | { | |
e4208427 AB |
3971 | if (params->listen_interval != -1 && |
3972 | statype != CFG80211_STA_AP_CLIENT_UNASSOC) | |
77ee7c89 | 3973 | return -EINVAL; |
e4208427 | 3974 | |
c72e1140 | 3975 | if (params->aid && |
e4208427 AB |
3976 | !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) && |
3977 | statype != CFG80211_STA_AP_CLIENT_UNASSOC) | |
77ee7c89 JB |
3978 | return -EINVAL; |
3979 | ||
3980 | /* When you run into this, adjust the code below for the new flag */ | |
3981 | BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7); | |
3982 | ||
3983 | switch (statype) { | |
eef941e6 TP |
3984 | case CFG80211_STA_MESH_PEER_KERNEL: |
3985 | case CFG80211_STA_MESH_PEER_USER: | |
77ee7c89 JB |
3986 | /* |
3987 | * No ignoring the TDLS flag here -- the userspace mesh | |
3988 | * code doesn't have the bug of including TDLS in the | |
3989 | * mask everywhere. | |
3990 | */ | |
3991 | if (params->sta_flags_mask & | |
3992 | ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3993 | BIT(NL80211_STA_FLAG_MFP) | | |
3994 | BIT(NL80211_STA_FLAG_AUTHORIZED))) | |
3995 | return -EINVAL; | |
3996 | break; | |
3997 | case CFG80211_STA_TDLS_PEER_SETUP: | |
3998 | case CFG80211_STA_TDLS_PEER_ACTIVE: | |
3999 | if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
4000 | return -EINVAL; | |
4001 | /* ignore since it can't change */ | |
4002 | params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
4003 | break; | |
4004 | default: | |
4005 | /* disallow mesh-specific things */ | |
4006 | if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION) | |
4007 | return -EINVAL; | |
4008 | if (params->local_pm) | |
4009 | return -EINVAL; | |
4010 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) | |
4011 | return -EINVAL; | |
4012 | } | |
4013 | ||
4014 | if (statype != CFG80211_STA_TDLS_PEER_SETUP && | |
4015 | statype != CFG80211_STA_TDLS_PEER_ACTIVE) { | |
4016 | /* TDLS can't be set, ... */ | |
4017 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
4018 | return -EINVAL; | |
4019 | /* | |
4020 | * ... but don't bother the driver with it. This works around | |
4021 | * a hostapd/wpa_supplicant issue -- it always includes the | |
4022 | * TLDS_PEER flag in the mask even for AP mode. | |
4023 | */ | |
4024 | params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
4025 | } | |
4026 | ||
47edb11b AB |
4027 | if (statype != CFG80211_STA_TDLS_PEER_SETUP && |
4028 | statype != CFG80211_STA_AP_CLIENT_UNASSOC) { | |
77ee7c89 JB |
4029 | /* reject other things that can't change */ |
4030 | if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) | |
4031 | return -EINVAL; | |
4032 | if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY) | |
4033 | return -EINVAL; | |
4034 | if (params->supported_rates) | |
4035 | return -EINVAL; | |
4036 | if (params->ext_capab || params->ht_capa || params->vht_capa) | |
4037 | return -EINVAL; | |
4038 | } | |
4039 | ||
47edb11b AB |
4040 | if (statype != CFG80211_STA_AP_CLIENT && |
4041 | statype != CFG80211_STA_AP_CLIENT_UNASSOC) { | |
77ee7c89 JB |
4042 | if (params->vlan) |
4043 | return -EINVAL; | |
4044 | } | |
4045 | ||
4046 | switch (statype) { | |
4047 | case CFG80211_STA_AP_MLME_CLIENT: | |
4048 | /* Use this only for authorizing/unauthorizing a station */ | |
4049 | if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) | |
4050 | return -EOPNOTSUPP; | |
4051 | break; | |
4052 | case CFG80211_STA_AP_CLIENT: | |
47edb11b | 4053 | case CFG80211_STA_AP_CLIENT_UNASSOC: |
77ee7c89 JB |
4054 | /* accept only the listed bits */ |
4055 | if (params->sta_flags_mask & | |
4056 | ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
4057 | BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
4058 | BIT(NL80211_STA_FLAG_ASSOCIATED) | | |
4059 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
4060 | BIT(NL80211_STA_FLAG_WME) | | |
4061 | BIT(NL80211_STA_FLAG_MFP))) | |
4062 | return -EINVAL; | |
4063 | ||
4064 | /* but authenticated/associated only if driver handles it */ | |
4065 | if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) && | |
4066 | params->sta_flags_mask & | |
4067 | (BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
4068 | BIT(NL80211_STA_FLAG_ASSOCIATED))) | |
4069 | return -EINVAL; | |
4070 | break; | |
4071 | case CFG80211_STA_IBSS: | |
4072 | case CFG80211_STA_AP_STA: | |
4073 | /* reject any changes other than AUTHORIZED */ | |
4074 | if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
4075 | return -EINVAL; | |
4076 | break; | |
4077 | case CFG80211_STA_TDLS_PEER_SETUP: | |
4078 | /* reject any changes other than AUTHORIZED or WME */ | |
4079 | if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
4080 | BIT(NL80211_STA_FLAG_WME))) | |
4081 | return -EINVAL; | |
4082 | /* force (at least) rates when authorizing */ | |
4083 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) && | |
4084 | !params->supported_rates) | |
4085 | return -EINVAL; | |
4086 | break; | |
4087 | case CFG80211_STA_TDLS_PEER_ACTIVE: | |
4088 | /* reject any changes */ | |
4089 | return -EINVAL; | |
eef941e6 | 4090 | case CFG80211_STA_MESH_PEER_KERNEL: |
77ee7c89 JB |
4091 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) |
4092 | return -EINVAL; | |
4093 | break; | |
eef941e6 | 4094 | case CFG80211_STA_MESH_PEER_USER: |
42925040 CYY |
4095 | if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION && |
4096 | params->plink_action != NL80211_PLINK_ACTION_BLOCK) | |
77ee7c89 JB |
4097 | return -EINVAL; |
4098 | break; | |
4099 | } | |
4100 | ||
4101 | return 0; | |
4102 | } | |
4103 | EXPORT_SYMBOL(cfg80211_check_station_change); | |
4104 | ||
5727ef1b | 4105 | /* |
c258d2de | 4106 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 4107 | */ |
80b99899 JB |
4108 | static struct net_device *get_vlan(struct genl_info *info, |
4109 | struct cfg80211_registered_device *rdev) | |
5727ef1b | 4110 | { |
463d0183 | 4111 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
80b99899 JB |
4112 | struct net_device *v; |
4113 | int ret; | |
4114 | ||
4115 | if (!vlanattr) | |
4116 | return NULL; | |
4117 | ||
4118 | v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); | |
4119 | if (!v) | |
4120 | return ERR_PTR(-ENODEV); | |
4121 | ||
4122 | if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { | |
4123 | ret = -EINVAL; | |
4124 | goto error; | |
5727ef1b | 4125 | } |
80b99899 | 4126 | |
77ee7c89 JB |
4127 | if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
4128 | v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4129 | v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { | |
4130 | ret = -EINVAL; | |
4131 | goto error; | |
4132 | } | |
4133 | ||
80b99899 JB |
4134 | if (!netif_running(v)) { |
4135 | ret = -ENETDOWN; | |
4136 | goto error; | |
4137 | } | |
4138 | ||
4139 | return v; | |
4140 | error: | |
4141 | dev_put(v); | |
4142 | return ERR_PTR(ret); | |
5727ef1b JB |
4143 | } |
4144 | ||
94e860f1 JB |
4145 | static const struct nla_policy |
4146 | nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = { | |
df881293 JM |
4147 | [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, |
4148 | [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, | |
4149 | }; | |
4150 | ||
ff276691 JB |
4151 | static int nl80211_parse_sta_wme(struct genl_info *info, |
4152 | struct station_parameters *params) | |
df881293 | 4153 | { |
df881293 JM |
4154 | struct nlattr *tb[NL80211_STA_WME_MAX + 1]; |
4155 | struct nlattr *nla; | |
4156 | int err; | |
4157 | ||
df881293 JM |
4158 | /* parse WME attributes if present */ |
4159 | if (!info->attrs[NL80211_ATTR_STA_WME]) | |
4160 | return 0; | |
4161 | ||
4162 | nla = info->attrs[NL80211_ATTR_STA_WME]; | |
4163 | err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla, | |
4164 | nl80211_sta_wme_policy); | |
4165 | if (err) | |
4166 | return err; | |
4167 | ||
4168 | if (tb[NL80211_STA_WME_UAPSD_QUEUES]) | |
4169 | params->uapsd_queues = nla_get_u8( | |
4170 | tb[NL80211_STA_WME_UAPSD_QUEUES]); | |
4171 | if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) | |
4172 | return -EINVAL; | |
4173 | ||
4174 | if (tb[NL80211_STA_WME_MAX_SP]) | |
4175 | params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); | |
4176 | ||
4177 | if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) | |
4178 | return -EINVAL; | |
4179 | ||
4180 | params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; | |
4181 | ||
4182 | return 0; | |
4183 | } | |
4184 | ||
c01fc9ad SD |
4185 | static int nl80211_parse_sta_channel_info(struct genl_info *info, |
4186 | struct station_parameters *params) | |
4187 | { | |
4188 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) { | |
4189 | params->supported_channels = | |
4190 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]); | |
4191 | params->supported_channels_len = | |
4192 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]); | |
4193 | /* | |
4194 | * Need to include at least one (first channel, number of | |
4195 | * channels) tuple for each subband, and must have proper | |
4196 | * tuples for the rest of the data as well. | |
4197 | */ | |
4198 | if (params->supported_channels_len < 2) | |
4199 | return -EINVAL; | |
4200 | if (params->supported_channels_len % 2) | |
4201 | return -EINVAL; | |
4202 | } | |
4203 | ||
4204 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) { | |
4205 | params->supported_oper_classes = | |
4206 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]); | |
4207 | params->supported_oper_classes_len = | |
4208 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]); | |
4209 | /* | |
4210 | * The value of the Length field of the Supported Operating | |
4211 | * Classes element is between 2 and 253. | |
4212 | */ | |
4213 | if (params->supported_oper_classes_len < 2 || | |
4214 | params->supported_oper_classes_len > 253) | |
4215 | return -EINVAL; | |
4216 | } | |
4217 | return 0; | |
4218 | } | |
4219 | ||
ff276691 JB |
4220 | static int nl80211_set_station_tdls(struct genl_info *info, |
4221 | struct station_parameters *params) | |
4222 | { | |
c01fc9ad | 4223 | int err; |
ff276691 | 4224 | /* Dummy STA entry gets updated once the peer capabilities are known */ |
5e4b6f56 JM |
4225 | if (info->attrs[NL80211_ATTR_PEER_AID]) |
4226 | params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]); | |
ff276691 JB |
4227 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
4228 | params->ht_capa = | |
4229 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
4230 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) | |
4231 | params->vht_capa = | |
4232 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); | |
4233 | ||
c01fc9ad SD |
4234 | err = nl80211_parse_sta_channel_info(info, params); |
4235 | if (err) | |
4236 | return err; | |
4237 | ||
ff276691 JB |
4238 | return nl80211_parse_sta_wme(info, params); |
4239 | } | |
4240 | ||
5727ef1b JB |
4241 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) |
4242 | { | |
4c476991 | 4243 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 4244 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b | 4245 | struct station_parameters params; |
77ee7c89 JB |
4246 | u8 *mac_addr; |
4247 | int err; | |
5727ef1b JB |
4248 | |
4249 | memset(¶ms, 0, sizeof(params)); | |
4250 | ||
77ee7c89 JB |
4251 | if (!rdev->ops->change_station) |
4252 | return -EOPNOTSUPP; | |
4253 | ||
e4208427 AB |
4254 | /* |
4255 | * AID and listen_interval properties can be set only for unassociated | |
4256 | * station. Include these parameters here and will check them in | |
4257 | * cfg80211_check_station_change(). | |
4258 | */ | |
a9bc31e4 AB |
4259 | if (info->attrs[NL80211_ATTR_STA_AID]) |
4260 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); | |
e4208427 AB |
4261 | |
4262 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
4263 | params.listen_interval = | |
4264 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
4265 | else | |
4266 | params.listen_interval = -1; | |
5727ef1b JB |
4267 | |
4268 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4269 | return -EINVAL; | |
4270 | ||
4271 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4272 | ||
4273 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
4274 | params.supported_rates = | |
4275 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4276 | params.supported_rates_len = | |
4277 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4278 | } | |
4279 | ||
9d62a986 JM |
4280 | if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) { |
4281 | params.capability = | |
4282 | nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]); | |
4283 | params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY; | |
4284 | } | |
4285 | ||
4286 | if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) { | |
4287 | params.ext_capab = | |
4288 | nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4289 | params.ext_capab_len = | |
4290 | nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4291 | } | |
4292 | ||
bdd3ae3d | 4293 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
4294 | return -EINVAL; |
4295 | ||
f8bacc21 | 4296 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) { |
2ec600d6 | 4297 | params.plink_action = |
f8bacc21 JB |
4298 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); |
4299 | if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS) | |
4300 | return -EINVAL; | |
4301 | } | |
2ec600d6 | 4302 | |
f8bacc21 | 4303 | if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) { |
9c3990aa | 4304 | params.plink_state = |
f8bacc21 JB |
4305 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); |
4306 | if (params.plink_state >= NUM_NL80211_PLINK_STATES) | |
4307 | return -EINVAL; | |
4308 | params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE; | |
4309 | } | |
9c3990aa | 4310 | |
3b1c5a53 MP |
4311 | if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) { |
4312 | enum nl80211_mesh_power_mode pm = nla_get_u32( | |
4313 | info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]); | |
4314 | ||
4315 | if (pm <= NL80211_MESH_POWER_UNKNOWN || | |
4316 | pm > NL80211_MESH_POWER_MAX) | |
4317 | return -EINVAL; | |
4318 | ||
4319 | params.local_pm = pm; | |
4320 | } | |
4321 | ||
77ee7c89 JB |
4322 | /* Include parameters for TDLS peer (will check later) */ |
4323 | err = nl80211_set_station_tdls(info, ¶ms); | |
4324 | if (err) | |
4325 | return err; | |
4326 | ||
4327 | params.vlan = get_vlan(info, rdev); | |
4328 | if (IS_ERR(params.vlan)) | |
4329 | return PTR_ERR(params.vlan); | |
4330 | ||
a97f4424 JB |
4331 | switch (dev->ieee80211_ptr->iftype) { |
4332 | case NL80211_IFTYPE_AP: | |
4333 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 4334 | case NL80211_IFTYPE_P2P_GO: |
074ac8df | 4335 | case NL80211_IFTYPE_P2P_CLIENT: |
a97f4424 | 4336 | case NL80211_IFTYPE_STATION: |
267335d6 | 4337 | case NL80211_IFTYPE_ADHOC: |
a97f4424 | 4338 | case NL80211_IFTYPE_MESH_POINT: |
a97f4424 JB |
4339 | break; |
4340 | default: | |
77ee7c89 JB |
4341 | err = -EOPNOTSUPP; |
4342 | goto out_put_vlan; | |
034d655e JB |
4343 | } |
4344 | ||
77ee7c89 | 4345 | /* driver will call cfg80211_check_station_change() */ |
e35e4d28 | 4346 | err = rdev_change_station(rdev, dev, mac_addr, ¶ms); |
5727ef1b | 4347 | |
77ee7c89 | 4348 | out_put_vlan: |
5727ef1b JB |
4349 | if (params.vlan) |
4350 | dev_put(params.vlan); | |
3b85875a | 4351 | |
5727ef1b JB |
4352 | return err; |
4353 | } | |
4354 | ||
4355 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
4356 | { | |
4c476991 | 4357 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 4358 | int err; |
4c476991 | 4359 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
4360 | struct station_parameters params; |
4361 | u8 *mac_addr = NULL; | |
bda95eb1 JB |
4362 | u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
4363 | BIT(NL80211_STA_FLAG_ASSOCIATED); | |
5727ef1b JB |
4364 | |
4365 | memset(¶ms, 0, sizeof(params)); | |
4366 | ||
984c311b JB |
4367 | if (!rdev->ops->add_station) |
4368 | return -EOPNOTSUPP; | |
4369 | ||
5727ef1b JB |
4370 | if (!info->attrs[NL80211_ATTR_MAC]) |
4371 | return -EINVAL; | |
4372 | ||
5727ef1b JB |
4373 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
4374 | return -EINVAL; | |
4375 | ||
4376 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
4377 | return -EINVAL; | |
4378 | ||
5e4b6f56 JM |
4379 | if (!info->attrs[NL80211_ATTR_STA_AID] && |
4380 | !info->attrs[NL80211_ATTR_PEER_AID]) | |
0e956c13 TLSC |
4381 | return -EINVAL; |
4382 | ||
5727ef1b JB |
4383 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
4384 | params.supported_rates = | |
4385 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4386 | params.supported_rates_len = | |
4387 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4388 | params.listen_interval = | |
4389 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 4390 | |
3d124ea2 | 4391 | if (info->attrs[NL80211_ATTR_PEER_AID]) |
5e4b6f56 | 4392 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]); |
3d124ea2 JM |
4393 | else |
4394 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); | |
0e956c13 TLSC |
4395 | if (!params.aid || params.aid > IEEE80211_MAX_AID) |
4396 | return -EINVAL; | |
51b50fbe | 4397 | |
9d62a986 JM |
4398 | if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) { |
4399 | params.capability = | |
4400 | nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]); | |
4401 | params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY; | |
4402 | } | |
4403 | ||
4404 | if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) { | |
4405 | params.ext_capab = | |
4406 | nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4407 | params.ext_capab_len = | |
4408 | nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4409 | } | |
4410 | ||
36aedc90 JM |
4411 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
4412 | params.ht_capa = | |
4413 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 4414 | |
f461be3e MP |
4415 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) |
4416 | params.vht_capa = | |
4417 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); | |
4418 | ||
60f4a7b1 MK |
4419 | if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) { |
4420 | params.opmode_notif_used = true; | |
4421 | params.opmode_notif = | |
4422 | nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]); | |
4423 | } | |
4424 | ||
f8bacc21 | 4425 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) { |
96b78dff | 4426 | params.plink_action = |
f8bacc21 JB |
4427 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); |
4428 | if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS) | |
4429 | return -EINVAL; | |
4430 | } | |
96b78dff | 4431 | |
c01fc9ad SD |
4432 | err = nl80211_parse_sta_channel_info(info, ¶ms); |
4433 | if (err) | |
4434 | return err; | |
4435 | ||
ff276691 JB |
4436 | err = nl80211_parse_sta_wme(info, ¶ms); |
4437 | if (err) | |
4438 | return err; | |
bdd90d5e | 4439 | |
bdd3ae3d | 4440 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
4441 | return -EINVAL; |
4442 | ||
496fcc29 JB |
4443 | /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT |
4444 | * as userspace might just pass through the capabilities from the IEs | |
4445 | * directly, rather than enforcing this restriction and returning an | |
4446 | * error in this case. | |
4447 | */ | |
4448 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) { | |
4449 | params.ht_capa = NULL; | |
4450 | params.vht_capa = NULL; | |
4451 | } | |
4452 | ||
77ee7c89 JB |
4453 | /* When you run into this, adjust the code below for the new flag */ |
4454 | BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7); | |
4455 | ||
bdd90d5e JB |
4456 | switch (dev->ieee80211_ptr->iftype) { |
4457 | case NL80211_IFTYPE_AP: | |
4458 | case NL80211_IFTYPE_AP_VLAN: | |
4459 | case NL80211_IFTYPE_P2P_GO: | |
984c311b JB |
4460 | /* ignore WME attributes if iface/sta is not capable */ |
4461 | if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) || | |
4462 | !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) | |
4463 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; | |
c75786c9 | 4464 | |
bdd90d5e | 4465 | /* TDLS peers cannot be added */ |
3d124ea2 JM |
4466 | if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) || |
4467 | info->attrs[NL80211_ATTR_PEER_AID]) | |
4319e193 | 4468 | return -EINVAL; |
bdd90d5e JB |
4469 | /* but don't bother the driver with it */ |
4470 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3b9ce80c | 4471 | |
d582cffb JB |
4472 | /* allow authenticated/associated only if driver handles it */ |
4473 | if (!(rdev->wiphy.features & | |
4474 | NL80211_FEATURE_FULL_AP_CLIENT_STATE) && | |
bda95eb1 | 4475 | params.sta_flags_mask & auth_assoc) |
d582cffb JB |
4476 | return -EINVAL; |
4477 | ||
bda95eb1 JB |
4478 | /* Older userspace, or userspace wanting to be compatible with |
4479 | * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth | |
4480 | * and assoc flags in the mask, but assumes the station will be | |
4481 | * added as associated anyway since this was the required driver | |
4482 | * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was | |
4483 | * introduced. | |
4484 | * In order to not bother drivers with this quirk in the API | |
4485 | * set the flags in both the mask and set for new stations in | |
4486 | * this case. | |
4487 | */ | |
4488 | if (!(params.sta_flags_mask & auth_assoc)) { | |
4489 | params.sta_flags_mask |= auth_assoc; | |
4490 | params.sta_flags_set |= auth_assoc; | |
4491 | } | |
4492 | ||
bdd90d5e JB |
4493 | /* must be last in here for error handling */ |
4494 | params.vlan = get_vlan(info, rdev); | |
4495 | if (IS_ERR(params.vlan)) | |
4496 | return PTR_ERR(params.vlan); | |
4497 | break; | |
4498 | case NL80211_IFTYPE_MESH_POINT: | |
984c311b JB |
4499 | /* ignore uAPSD data */ |
4500 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; | |
4501 | ||
d582cffb JB |
4502 | /* associated is disallowed */ |
4503 | if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) | |
4504 | return -EINVAL; | |
bdd90d5e | 4505 | /* TDLS peers cannot be added */ |
3d124ea2 JM |
4506 | if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) || |
4507 | info->attrs[NL80211_ATTR_PEER_AID]) | |
bdd90d5e JB |
4508 | return -EINVAL; |
4509 | break; | |
4510 | case NL80211_IFTYPE_STATION: | |
93d08f0b | 4511 | case NL80211_IFTYPE_P2P_CLIENT: |
984c311b JB |
4512 | /* ignore uAPSD data */ |
4513 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; | |
4514 | ||
77ee7c89 JB |
4515 | /* these are disallowed */ |
4516 | if (params.sta_flags_mask & | |
4517 | (BIT(NL80211_STA_FLAG_ASSOCIATED) | | |
4518 | BIT(NL80211_STA_FLAG_AUTHENTICATED))) | |
d582cffb | 4519 | return -EINVAL; |
bdd90d5e JB |
4520 | /* Only TDLS peers can be added */ |
4521 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
4522 | return -EINVAL; | |
4523 | /* Can only add if TDLS ... */ | |
4524 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)) | |
4525 | return -EOPNOTSUPP; | |
4526 | /* ... with external setup is supported */ | |
4527 | if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) | |
4528 | return -EOPNOTSUPP; | |
77ee7c89 JB |
4529 | /* |
4530 | * Older wpa_supplicant versions always mark the TDLS peer | |
4531 | * as authorized, but it shouldn't yet be. | |
4532 | */ | |
4533 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED); | |
bdd90d5e JB |
4534 | break; |
4535 | default: | |
4536 | return -EOPNOTSUPP; | |
c75786c9 EP |
4537 | } |
4538 | ||
bdd90d5e | 4539 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 4540 | |
e35e4d28 | 4541 | err = rdev_add_station(rdev, dev, mac_addr, ¶ms); |
5727ef1b | 4542 | |
5727ef1b JB |
4543 | if (params.vlan) |
4544 | dev_put(params.vlan); | |
5727ef1b JB |
4545 | return err; |
4546 | } | |
4547 | ||
4548 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
4549 | { | |
4c476991 JB |
4550 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4551 | struct net_device *dev = info->user_ptr[1]; | |
89c771e5 JM |
4552 | struct station_del_parameters params; |
4553 | ||
4554 | memset(¶ms, 0, sizeof(params)); | |
5727ef1b JB |
4555 | |
4556 | if (info->attrs[NL80211_ATTR_MAC]) | |
89c771e5 | 4557 | params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]); |
5727ef1b | 4558 | |
e80cf853 | 4559 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 | 4560 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
074ac8df | 4561 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
4562 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4563 | return -EINVAL; | |
5727ef1b | 4564 | |
4c476991 JB |
4565 | if (!rdev->ops->del_station) |
4566 | return -EOPNOTSUPP; | |
3b85875a | 4567 | |
98856866 JM |
4568 | if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) { |
4569 | params.subtype = | |
4570 | nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]); | |
4571 | if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 && | |
4572 | params.subtype != IEEE80211_STYPE_DEAUTH >> 4) | |
4573 | return -EINVAL; | |
4574 | } else { | |
4575 | /* Default to Deauthentication frame */ | |
4576 | params.subtype = IEEE80211_STYPE_DEAUTH >> 4; | |
4577 | } | |
4578 | ||
4579 | if (info->attrs[NL80211_ATTR_REASON_CODE]) { | |
4580 | params.reason_code = | |
4581 | nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
4582 | if (params.reason_code == 0) | |
4583 | return -EINVAL; /* 0 is reserved */ | |
4584 | } else { | |
4585 | /* Default to reason code 2 */ | |
4586 | params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID; | |
4587 | } | |
4588 | ||
89c771e5 | 4589 | return rdev_del_station(rdev, dev, ¶ms); |
5727ef1b JB |
4590 | } |
4591 | ||
15e47304 | 4592 | static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, |
2ec600d6 LCC |
4593 | int flags, struct net_device *dev, |
4594 | u8 *dst, u8 *next_hop, | |
4595 | struct mpath_info *pinfo) | |
4596 | { | |
4597 | void *hdr; | |
4598 | struct nlattr *pinfoattr; | |
4599 | ||
1ef4c850 | 4600 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH); |
2ec600d6 LCC |
4601 | if (!hdr) |
4602 | return -1; | |
4603 | ||
9360ffd1 DM |
4604 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
4605 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || | |
4606 | nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) || | |
4607 | nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation)) | |
4608 | goto nla_put_failure; | |
f5ea9120 | 4609 | |
2ec600d6 LCC |
4610 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
4611 | if (!pinfoattr) | |
4612 | goto nla_put_failure; | |
9360ffd1 DM |
4613 | if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) && |
4614 | nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
4615 | pinfo->frame_qlen)) | |
4616 | goto nla_put_failure; | |
4617 | if (((pinfo->filled & MPATH_INFO_SN) && | |
4618 | nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) || | |
4619 | ((pinfo->filled & MPATH_INFO_METRIC) && | |
4620 | nla_put_u32(msg, NL80211_MPATH_INFO_METRIC, | |
4621 | pinfo->metric)) || | |
4622 | ((pinfo->filled & MPATH_INFO_EXPTIME) && | |
4623 | nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME, | |
4624 | pinfo->exptime)) || | |
4625 | ((pinfo->filled & MPATH_INFO_FLAGS) && | |
4626 | nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS, | |
4627 | pinfo->flags)) || | |
4628 | ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) && | |
4629 | nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
4630 | pinfo->discovery_timeout)) || | |
4631 | ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) && | |
4632 | nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
4633 | pinfo->discovery_retries))) | |
4634 | goto nla_put_failure; | |
2ec600d6 LCC |
4635 | |
4636 | nla_nest_end(msg, pinfoattr); | |
4637 | ||
053c095a JB |
4638 | genlmsg_end(msg, hdr); |
4639 | return 0; | |
2ec600d6 LCC |
4640 | |
4641 | nla_put_failure: | |
bc3ed28c TG |
4642 | genlmsg_cancel(msg, hdr); |
4643 | return -EMSGSIZE; | |
2ec600d6 LCC |
4644 | } |
4645 | ||
4646 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 4647 | struct netlink_callback *cb) |
2ec600d6 | 4648 | { |
2ec600d6 | 4649 | struct mpath_info pinfo; |
1b8ec87a | 4650 | struct cfg80211_registered_device *rdev; |
97990a06 | 4651 | struct wireless_dev *wdev; |
2ec600d6 LCC |
4652 | u8 dst[ETH_ALEN]; |
4653 | u8 next_hop[ETH_ALEN]; | |
97990a06 | 4654 | int path_idx = cb->args[2]; |
2ec600d6 | 4655 | int err; |
2ec600d6 | 4656 | |
1b8ec87a | 4657 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
67748893 JB |
4658 | if (err) |
4659 | return err; | |
bba95fef | 4660 | |
1b8ec87a | 4661 | if (!rdev->ops->dump_mpath) { |
eec60b03 | 4662 | err = -EOPNOTSUPP; |
bba95fef JB |
4663 | goto out_err; |
4664 | } | |
4665 | ||
97990a06 | 4666 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) { |
eec60b03 | 4667 | err = -EOPNOTSUPP; |
0448b5fc | 4668 | goto out_err; |
eec60b03 JM |
4669 | } |
4670 | ||
bba95fef | 4671 | while (1) { |
1b8ec87a | 4672 | err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst, |
97990a06 | 4673 | next_hop, &pinfo); |
bba95fef | 4674 | if (err == -ENOENT) |
2ec600d6 | 4675 | break; |
bba95fef | 4676 | if (err) |
3b85875a | 4677 | goto out_err; |
2ec600d6 | 4678 | |
15e47304 | 4679 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, |
bba95fef | 4680 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
97990a06 | 4681 | wdev->netdev, dst, next_hop, |
bba95fef JB |
4682 | &pinfo) < 0) |
4683 | goto out; | |
2ec600d6 | 4684 | |
bba95fef | 4685 | path_idx++; |
2ec600d6 | 4686 | } |
2ec600d6 | 4687 | |
2ec600d6 | 4688 | |
bba95fef | 4689 | out: |
97990a06 | 4690 | cb->args[2] = path_idx; |
bba95fef | 4691 | err = skb->len; |
bba95fef | 4692 | out_err: |
1b8ec87a | 4693 | nl80211_finish_wdev_dump(rdev); |
bba95fef | 4694 | return err; |
2ec600d6 LCC |
4695 | } |
4696 | ||
4697 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
4698 | { | |
4c476991 | 4699 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 4700 | int err; |
4c476991 | 4701 | struct net_device *dev = info->user_ptr[1]; |
2ec600d6 LCC |
4702 | struct mpath_info pinfo; |
4703 | struct sk_buff *msg; | |
4704 | u8 *dst = NULL; | |
4705 | u8 next_hop[ETH_ALEN]; | |
4706 | ||
4707 | memset(&pinfo, 0, sizeof(pinfo)); | |
4708 | ||
4709 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4710 | return -EINVAL; | |
4711 | ||
4712 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4713 | ||
4c476991 JB |
4714 | if (!rdev->ops->get_mpath) |
4715 | return -EOPNOTSUPP; | |
2ec600d6 | 4716 | |
4c476991 JB |
4717 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
4718 | return -EOPNOTSUPP; | |
eec60b03 | 4719 | |
e35e4d28 | 4720 | err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo); |
2ec600d6 | 4721 | if (err) |
4c476991 | 4722 | return err; |
2ec600d6 | 4723 | |
fd2120ca | 4724 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 | 4725 | if (!msg) |
4c476991 | 4726 | return -ENOMEM; |
2ec600d6 | 4727 | |
15e47304 | 4728 | if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, |
4c476991 JB |
4729 | dev, dst, next_hop, &pinfo) < 0) { |
4730 | nlmsg_free(msg); | |
4731 | return -ENOBUFS; | |
4732 | } | |
3b85875a | 4733 | |
4c476991 | 4734 | return genlmsg_reply(msg, info); |
2ec600d6 LCC |
4735 | } |
4736 | ||
4737 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
4738 | { | |
4c476991 JB |
4739 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4740 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
4741 | u8 *dst = NULL; |
4742 | u8 *next_hop = NULL; | |
4743 | ||
4744 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4745 | return -EINVAL; | |
4746 | ||
4747 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
4748 | return -EINVAL; | |
4749 | ||
4750 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4751 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
4752 | ||
4c476991 JB |
4753 | if (!rdev->ops->change_mpath) |
4754 | return -EOPNOTSUPP; | |
35a8efe1 | 4755 | |
4c476991 JB |
4756 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
4757 | return -EOPNOTSUPP; | |
2ec600d6 | 4758 | |
e35e4d28 | 4759 | return rdev_change_mpath(rdev, dev, dst, next_hop); |
2ec600d6 | 4760 | } |
4c476991 | 4761 | |
2ec600d6 LCC |
4762 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
4763 | { | |
4c476991 JB |
4764 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4765 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
4766 | u8 *dst = NULL; |
4767 | u8 *next_hop = NULL; | |
4768 | ||
4769 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4770 | return -EINVAL; | |
4771 | ||
4772 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
4773 | return -EINVAL; | |
4774 | ||
4775 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4776 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
4777 | ||
4c476991 JB |
4778 | if (!rdev->ops->add_mpath) |
4779 | return -EOPNOTSUPP; | |
35a8efe1 | 4780 | |
4c476991 JB |
4781 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
4782 | return -EOPNOTSUPP; | |
2ec600d6 | 4783 | |
e35e4d28 | 4784 | return rdev_add_mpath(rdev, dev, dst, next_hop); |
2ec600d6 LCC |
4785 | } |
4786 | ||
4787 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
4788 | { | |
4c476991 JB |
4789 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4790 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
4791 | u8 *dst = NULL; |
4792 | ||
4793 | if (info->attrs[NL80211_ATTR_MAC]) | |
4794 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4795 | ||
4c476991 JB |
4796 | if (!rdev->ops->del_mpath) |
4797 | return -EOPNOTSUPP; | |
3b85875a | 4798 | |
e35e4d28 | 4799 | return rdev_del_mpath(rdev, dev, dst); |
2ec600d6 LCC |
4800 | } |
4801 | ||
66be7d2b HR |
4802 | static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info) |
4803 | { | |
4804 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4805 | int err; | |
4806 | struct net_device *dev = info->user_ptr[1]; | |
4807 | struct mpath_info pinfo; | |
4808 | struct sk_buff *msg; | |
4809 | u8 *dst = NULL; | |
4810 | u8 mpp[ETH_ALEN]; | |
4811 | ||
4812 | memset(&pinfo, 0, sizeof(pinfo)); | |
4813 | ||
4814 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4815 | return -EINVAL; | |
4816 | ||
4817 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4818 | ||
4819 | if (!rdev->ops->get_mpp) | |
4820 | return -EOPNOTSUPP; | |
4821 | ||
4822 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
4823 | return -EOPNOTSUPP; | |
4824 | ||
4825 | err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo); | |
4826 | if (err) | |
4827 | return err; | |
4828 | ||
4829 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4830 | if (!msg) | |
4831 | return -ENOMEM; | |
4832 | ||
4833 | if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, | |
4834 | dev, dst, mpp, &pinfo) < 0) { | |
4835 | nlmsg_free(msg); | |
4836 | return -ENOBUFS; | |
4837 | } | |
4838 | ||
4839 | return genlmsg_reply(msg, info); | |
4840 | } | |
4841 | ||
4842 | static int nl80211_dump_mpp(struct sk_buff *skb, | |
4843 | struct netlink_callback *cb) | |
4844 | { | |
4845 | struct mpath_info pinfo; | |
4846 | struct cfg80211_registered_device *rdev; | |
4847 | struct wireless_dev *wdev; | |
4848 | u8 dst[ETH_ALEN]; | |
4849 | u8 mpp[ETH_ALEN]; | |
4850 | int path_idx = cb->args[2]; | |
4851 | int err; | |
4852 | ||
4853 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); | |
4854 | if (err) | |
4855 | return err; | |
4856 | ||
4857 | if (!rdev->ops->dump_mpp) { | |
4858 | err = -EOPNOTSUPP; | |
4859 | goto out_err; | |
4860 | } | |
4861 | ||
4862 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) { | |
4863 | err = -EOPNOTSUPP; | |
4864 | goto out_err; | |
4865 | } | |
4866 | ||
4867 | while (1) { | |
4868 | err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst, | |
4869 | mpp, &pinfo); | |
4870 | if (err == -ENOENT) | |
4871 | break; | |
4872 | if (err) | |
4873 | goto out_err; | |
4874 | ||
4875 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, | |
4876 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4877 | wdev->netdev, dst, mpp, | |
4878 | &pinfo) < 0) | |
4879 | goto out; | |
4880 | ||
4881 | path_idx++; | |
4882 | } | |
4883 | ||
4884 | out: | |
4885 | cb->args[2] = path_idx; | |
4886 | err = skb->len; | |
4887 | out_err: | |
4888 | nl80211_finish_wdev_dump(rdev); | |
4889 | return err; | |
4890 | } | |
4891 | ||
9f1ba906 JM |
4892 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
4893 | { | |
4c476991 JB |
4894 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4895 | struct net_device *dev = info->user_ptr[1]; | |
c56589ed | 4896 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
9f1ba906 | 4897 | struct bss_parameters params; |
c56589ed | 4898 | int err; |
9f1ba906 JM |
4899 | |
4900 | memset(¶ms, 0, sizeof(params)); | |
4901 | /* default to not changing parameters */ | |
4902 | params.use_cts_prot = -1; | |
4903 | params.use_short_preamble = -1; | |
4904 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 4905 | params.ap_isolate = -1; |
50b12f59 | 4906 | params.ht_opmode = -1; |
53cabad7 JB |
4907 | params.p2p_ctwindow = -1; |
4908 | params.p2p_opp_ps = -1; | |
9f1ba906 JM |
4909 | |
4910 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
4911 | params.use_cts_prot = | |
4912 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
4913 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
4914 | params.use_short_preamble = | |
4915 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
4916 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
4917 | params.use_short_slot_time = | |
4918 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
4919 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
4920 | params.basic_rates = | |
4921 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4922 | params.basic_rates_len = | |
4923 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4924 | } | |
fd8aaaf3 FF |
4925 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
4926 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
50b12f59 HS |
4927 | if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) |
4928 | params.ht_opmode = | |
4929 | nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); | |
9f1ba906 | 4930 | |
53cabad7 JB |
4931 | if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { |
4932 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
4933 | return -EINVAL; | |
4934 | params.p2p_ctwindow = | |
4935 | nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); | |
4936 | if (params.p2p_ctwindow < 0) | |
4937 | return -EINVAL; | |
4938 | if (params.p2p_ctwindow != 0 && | |
4939 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) | |
4940 | return -EINVAL; | |
4941 | } | |
4942 | ||
4943 | if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { | |
4944 | u8 tmp; | |
4945 | ||
4946 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
4947 | return -EINVAL; | |
4948 | tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); | |
4949 | if (tmp > 1) | |
4950 | return -EINVAL; | |
4951 | params.p2p_opp_ps = tmp; | |
4952 | if (params.p2p_opp_ps && | |
4953 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) | |
4954 | return -EINVAL; | |
4955 | } | |
4956 | ||
4c476991 JB |
4957 | if (!rdev->ops->change_bss) |
4958 | return -EOPNOTSUPP; | |
9f1ba906 | 4959 | |
074ac8df | 4960 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
4961 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4962 | return -EOPNOTSUPP; | |
3b85875a | 4963 | |
c56589ed SW |
4964 | wdev_lock(wdev); |
4965 | err = rdev_change_bss(rdev, dev, ¶ms); | |
4966 | wdev_unlock(wdev); | |
4967 | ||
4968 | return err; | |
9f1ba906 JM |
4969 | } |
4970 | ||
b2e1b302 LR |
4971 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) |
4972 | { | |
b2e1b302 | 4973 | char *data = NULL; |
05050753 | 4974 | bool is_indoor; |
57b5ce07 | 4975 | enum nl80211_user_reg_hint_type user_reg_hint_type; |
05050753 I |
4976 | u32 owner_nlportid; |
4977 | ||
b2e1b302 | 4978 | |
80778f18 LR |
4979 | /* |
4980 | * You should only get this when cfg80211 hasn't yet initialized | |
4981 | * completely when built-in to the kernel right between the time | |
4982 | * window between nl80211_init() and regulatory_init(), if that is | |
4983 | * even possible. | |
4984 | */ | |
458f4f9e | 4985 | if (unlikely(!rcu_access_pointer(cfg80211_regdomain))) |
fe33eb39 | 4986 | return -EINPROGRESS; |
80778f18 | 4987 | |
57b5ce07 LR |
4988 | if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]) |
4989 | user_reg_hint_type = | |
4990 | nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]); | |
4991 | else | |
4992 | user_reg_hint_type = NL80211_USER_REG_HINT_USER; | |
4993 | ||
4994 | switch (user_reg_hint_type) { | |
4995 | case NL80211_USER_REG_HINT_USER: | |
4996 | case NL80211_USER_REG_HINT_CELL_BASE: | |
52616f2b IP |
4997 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
4998 | return -EINVAL; | |
4999 | ||
5000 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
5001 | return regulatory_hint_user(data, user_reg_hint_type); | |
5002 | case NL80211_USER_REG_HINT_INDOOR: | |
05050753 I |
5003 | if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) { |
5004 | owner_nlportid = info->snd_portid; | |
5005 | is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR]; | |
5006 | } else { | |
5007 | owner_nlportid = 0; | |
5008 | is_indoor = true; | |
5009 | } | |
5010 | ||
5011 | return regulatory_hint_indoor(is_indoor, owner_nlportid); | |
57b5ce07 LR |
5012 | default: |
5013 | return -EINVAL; | |
5014 | } | |
b2e1b302 LR |
5015 | } |
5016 | ||
24bdd9f4 | 5017 | static int nl80211_get_mesh_config(struct sk_buff *skb, |
29cbe68c | 5018 | struct genl_info *info) |
93da9cc1 | 5019 | { |
4c476991 | 5020 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 5021 | struct net_device *dev = info->user_ptr[1]; |
29cbe68c JB |
5022 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
5023 | struct mesh_config cur_params; | |
5024 | int err = 0; | |
93da9cc1 | 5025 | void *hdr; |
5026 | struct nlattr *pinfoattr; | |
5027 | struct sk_buff *msg; | |
5028 | ||
29cbe68c JB |
5029 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
5030 | return -EOPNOTSUPP; | |
5031 | ||
24bdd9f4 | 5032 | if (!rdev->ops->get_mesh_config) |
4c476991 | 5033 | return -EOPNOTSUPP; |
f3f92586 | 5034 | |
29cbe68c JB |
5035 | wdev_lock(wdev); |
5036 | /* If not connected, get default parameters */ | |
5037 | if (!wdev->mesh_id_len) | |
5038 | memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); | |
5039 | else | |
e35e4d28 | 5040 | err = rdev_get_mesh_config(rdev, dev, &cur_params); |
29cbe68c JB |
5041 | wdev_unlock(wdev); |
5042 | ||
93da9cc1 | 5043 | if (err) |
4c476991 | 5044 | return err; |
93da9cc1 | 5045 | |
5046 | /* Draw up a netlink message to send back */ | |
fd2120ca | 5047 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
5048 | if (!msg) |
5049 | return -ENOMEM; | |
15e47304 | 5050 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
24bdd9f4 | 5051 | NL80211_CMD_GET_MESH_CONFIG); |
93da9cc1 | 5052 | if (!hdr) |
efe1cf0c | 5053 | goto out; |
24bdd9f4 | 5054 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); |
93da9cc1 | 5055 | if (!pinfoattr) |
5056 | goto nla_put_failure; | |
9360ffd1 DM |
5057 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
5058 | nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
5059 | cur_params.dot11MeshRetryTimeout) || | |
5060 | nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
5061 | cur_params.dot11MeshConfirmTimeout) || | |
5062 | nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
5063 | cur_params.dot11MeshHoldingTimeout) || | |
5064 | nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
5065 | cur_params.dot11MeshMaxPeerLinks) || | |
5066 | nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
5067 | cur_params.dot11MeshMaxRetries) || | |
5068 | nla_put_u8(msg, NL80211_MESHCONF_TTL, | |
5069 | cur_params.dot11MeshTTL) || | |
5070 | nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL, | |
5071 | cur_params.element_ttl) || | |
5072 | nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
5073 | cur_params.auto_open_plinks) || | |
7eab0f64 JL |
5074 | nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
5075 | cur_params.dot11MeshNbrOffsetMaxNeighbor) || | |
9360ffd1 DM |
5076 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
5077 | cur_params.dot11MeshHWMPmaxPREQretries) || | |
5078 | nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
5079 | cur_params.path_refresh_time) || | |
5080 | nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
5081 | cur_params.min_discovery_timeout) || | |
5082 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
5083 | cur_params.dot11MeshHWMPactivePathTimeout) || | |
5084 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
5085 | cur_params.dot11MeshHWMPpreqMinInterval) || | |
5086 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
5087 | cur_params.dot11MeshHWMPperrMinInterval) || | |
5088 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
5089 | cur_params.dot11MeshHWMPnetDiameterTraversalTime) || | |
5090 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, | |
5091 | cur_params.dot11MeshHWMPRootMode) || | |
5092 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
5093 | cur_params.dot11MeshHWMPRannInterval) || | |
5094 | nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
5095 | cur_params.dot11MeshGateAnnouncementProtocol) || | |
5096 | nla_put_u8(msg, NL80211_MESHCONF_FORWARDING, | |
5097 | cur_params.dot11MeshForwarding) || | |
5098 | nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, | |
70c33eaa AN |
5099 | cur_params.rssi_threshold) || |
5100 | nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE, | |
ac1073a6 CYY |
5101 | cur_params.ht_opmode) || |
5102 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, | |
5103 | cur_params.dot11MeshHWMPactivePathToRootTimeout) || | |
5104 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, | |
728b19e5 CYY |
5105 | cur_params.dot11MeshHWMProotInterval) || |
5106 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, | |
3b1c5a53 MP |
5107 | cur_params.dot11MeshHWMPconfirmationInterval) || |
5108 | nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE, | |
5109 | cur_params.power_mode) || | |
5110 | nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW, | |
8e7c0538 CT |
5111 | cur_params.dot11MeshAwakeWindowDuration) || |
5112 | nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT, | |
5113 | cur_params.plink_timeout)) | |
9360ffd1 | 5114 | goto nla_put_failure; |
93da9cc1 | 5115 | nla_nest_end(msg, pinfoattr); |
5116 | genlmsg_end(msg, hdr); | |
4c476991 | 5117 | return genlmsg_reply(msg, info); |
93da9cc1 | 5118 | |
3b85875a | 5119 | nla_put_failure: |
93da9cc1 | 5120 | genlmsg_cancel(msg, hdr); |
efe1cf0c | 5121 | out: |
d080e275 | 5122 | nlmsg_free(msg); |
4c476991 | 5123 | return -ENOBUFS; |
93da9cc1 | 5124 | } |
5125 | ||
b54452b0 | 5126 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 5127 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
5128 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
5129 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
5130 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
5131 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
5132 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
45904f21 | 5133 | [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, |
93da9cc1 | 5134 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, |
d299a1f2 | 5135 | [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 }, |
93da9cc1 | 5136 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, |
5137 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
5138 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
5139 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
5140 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
dca7e943 | 5141 | [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 }, |
93da9cc1 | 5142 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, |
699403db | 5143 | [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 }, |
0507e159 | 5144 | [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 }, |
16dd7267 | 5145 | [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 }, |
94f90656 | 5146 | [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 }, |
a4f606ea CYY |
5147 | [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 }, |
5148 | [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 }, | |
ac1073a6 CYY |
5149 | [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 }, |
5150 | [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 }, | |
728b19e5 | 5151 | [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 }, |
3b1c5a53 MP |
5152 | [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 }, |
5153 | [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 }, | |
8e7c0538 | 5154 | [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 }, |
93da9cc1 | 5155 | }; |
5156 | ||
c80d545d JC |
5157 | static const struct nla_policy |
5158 | nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { | |
d299a1f2 | 5159 | [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 }, |
c80d545d JC |
5160 | [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, |
5161 | [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, | |
15d5dda6 | 5162 | [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, |
6e16d90b | 5163 | [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 }, |
bb2798d4 | 5164 | [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG }, |
581a8b0f | 5165 | [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY, |
a4f606ea | 5166 | .len = IEEE80211_MAX_DATA_LEN }, |
b130e5ce | 5167 | [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, |
c80d545d JC |
5168 | }; |
5169 | ||
24bdd9f4 | 5170 | static int nl80211_parse_mesh_config(struct genl_info *info, |
bd90fdcc JB |
5171 | struct mesh_config *cfg, |
5172 | u32 *mask_out) | |
93da9cc1 | 5173 | { |
93da9cc1 | 5174 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; |
bd90fdcc | 5175 | u32 mask = 0; |
93da9cc1 | 5176 | |
ea54fba2 MP |
5177 | #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \ |
5178 | do { \ | |
5179 | if (tb[attr]) { \ | |
5180 | if (fn(tb[attr]) < min || fn(tb[attr]) > max) \ | |
5181 | return -EINVAL; \ | |
5182 | cfg->param = fn(tb[attr]); \ | |
5183 | mask |= (1 << (attr - 1)); \ | |
5184 | } \ | |
5185 | } while (0) | |
bd90fdcc JB |
5186 | |
5187 | ||
24bdd9f4 | 5188 | if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) |
93da9cc1 | 5189 | return -EINVAL; |
5190 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
24bdd9f4 | 5191 | info->attrs[NL80211_ATTR_MESH_CONFIG], |
bd90fdcc | 5192 | nl80211_meshconf_params_policy)) |
93da9cc1 | 5193 | return -EINVAL; |
5194 | ||
93da9cc1 | 5195 | /* This makes sure that there aren't more than 32 mesh config |
5196 | * parameters (otherwise our bitfield scheme would not work.) */ | |
5197 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
5198 | ||
5199 | /* Fill in the params struct */ | |
ea54fba2 | 5200 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255, |
a4f606ea CYY |
5201 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, |
5202 | nla_get_u16); | |
ea54fba2 | 5203 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255, |
a4f606ea CYY |
5204 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, |
5205 | nla_get_u16); | |
ea54fba2 | 5206 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255, |
a4f606ea CYY |
5207 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, |
5208 | nla_get_u16); | |
ea54fba2 | 5209 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255, |
a4f606ea CYY |
5210 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, |
5211 | nla_get_u16); | |
ea54fba2 | 5212 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16, |
a4f606ea CYY |
5213 | mask, NL80211_MESHCONF_MAX_RETRIES, |
5214 | nla_get_u8); | |
ea54fba2 | 5215 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255, |
a4f606ea | 5216 | mask, NL80211_MESHCONF_TTL, nla_get_u8); |
ea54fba2 | 5217 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255, |
a4f606ea CYY |
5218 | mask, NL80211_MESHCONF_ELEMENT_TTL, |
5219 | nla_get_u8); | |
ea54fba2 | 5220 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1, |
a4f606ea CYY |
5221 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, |
5222 | nla_get_u8); | |
ea54fba2 MP |
5223 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, |
5224 | 1, 255, mask, | |
a4f606ea CYY |
5225 | NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
5226 | nla_get_u32); | |
ea54fba2 | 5227 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255, |
a4f606ea CYY |
5228 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
5229 | nla_get_u8); | |
ea54fba2 | 5230 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535, |
a4f606ea CYY |
5231 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, |
5232 | nla_get_u32); | |
ea54fba2 | 5233 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535, |
a4f606ea CYY |
5234 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, |
5235 | nla_get_u16); | |
ea54fba2 MP |
5236 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, |
5237 | 1, 65535, mask, | |
a4f606ea CYY |
5238 | NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, |
5239 | nla_get_u32); | |
93da9cc1 | 5240 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, |
ea54fba2 MP |
5241 | 1, 65535, mask, |
5242 | NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
a4f606ea | 5243 | nla_get_u16); |
dca7e943 | 5244 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, |
ea54fba2 MP |
5245 | 1, 65535, mask, |
5246 | NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
a4f606ea | 5247 | nla_get_u16); |
93da9cc1 | 5248 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
ea54fba2 MP |
5249 | dot11MeshHWMPnetDiameterTraversalTime, |
5250 | 1, 65535, mask, | |
a4f606ea CYY |
5251 | NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
5252 | nla_get_u16); | |
ea54fba2 MP |
5253 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4, |
5254 | mask, NL80211_MESHCONF_HWMP_ROOTMODE, | |
5255 | nla_get_u8); | |
5256 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535, | |
5257 | mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
a4f606ea | 5258 | nla_get_u16); |
63c5723b | 5259 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
ea54fba2 MP |
5260 | dot11MeshGateAnnouncementProtocol, 0, 1, |
5261 | mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
a4f606ea | 5262 | nla_get_u8); |
ea54fba2 | 5263 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1, |
a4f606ea CYY |
5264 | mask, NL80211_MESHCONF_FORWARDING, |
5265 | nla_get_u8); | |
83374fe9 | 5266 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0, |
a4f606ea | 5267 | mask, NL80211_MESHCONF_RSSI_THRESHOLD, |
83374fe9 | 5268 | nla_get_s32); |
ea54fba2 | 5269 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16, |
a4f606ea | 5270 | mask, NL80211_MESHCONF_HT_OPMODE, |
ac1073a6 CYY |
5271 | nla_get_u16); |
5272 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout, | |
ea54fba2 | 5273 | 1, 65535, mask, |
ac1073a6 CYY |
5274 | NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, |
5275 | nla_get_u32); | |
ea54fba2 | 5276 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535, |
ac1073a6 | 5277 | mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, |
728b19e5 CYY |
5278 | nla_get_u16); |
5279 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
ea54fba2 MP |
5280 | dot11MeshHWMPconfirmationInterval, |
5281 | 1, 65535, mask, | |
728b19e5 | 5282 | NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, |
a4f606ea | 5283 | nla_get_u16); |
3b1c5a53 MP |
5284 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode, |
5285 | NL80211_MESH_POWER_ACTIVE, | |
5286 | NL80211_MESH_POWER_MAX, | |
5287 | mask, NL80211_MESHCONF_POWER_MODE, | |
5288 | nla_get_u32); | |
5289 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration, | |
5290 | 0, 65535, mask, | |
5291 | NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16); | |
31f909a2 | 5292 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff, |
8e7c0538 CT |
5293 | mask, NL80211_MESHCONF_PLINK_TIMEOUT, |
5294 | nla_get_u32); | |
bd90fdcc JB |
5295 | if (mask_out) |
5296 | *mask_out = mask; | |
c80d545d | 5297 | |
bd90fdcc JB |
5298 | return 0; |
5299 | ||
5300 | #undef FILL_IN_MESH_PARAM_IF_SET | |
5301 | } | |
5302 | ||
c80d545d JC |
5303 | static int nl80211_parse_mesh_setup(struct genl_info *info, |
5304 | struct mesh_setup *setup) | |
5305 | { | |
bb2798d4 | 5306 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
c80d545d JC |
5307 | struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; |
5308 | ||
5309 | if (!info->attrs[NL80211_ATTR_MESH_SETUP]) | |
5310 | return -EINVAL; | |
5311 | if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX, | |
5312 | info->attrs[NL80211_ATTR_MESH_SETUP], | |
5313 | nl80211_mesh_setup_params_policy)) | |
5314 | return -EINVAL; | |
5315 | ||
d299a1f2 JC |
5316 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC]) |
5317 | setup->sync_method = | |
5318 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ? | |
5319 | IEEE80211_SYNC_METHOD_VENDOR : | |
5320 | IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET; | |
5321 | ||
c80d545d JC |
5322 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) |
5323 | setup->path_sel_proto = | |
5324 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? | |
5325 | IEEE80211_PATH_PROTOCOL_VENDOR : | |
5326 | IEEE80211_PATH_PROTOCOL_HWMP; | |
5327 | ||
5328 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) | |
5329 | setup->path_metric = | |
5330 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? | |
5331 | IEEE80211_PATH_METRIC_VENDOR : | |
5332 | IEEE80211_PATH_METRIC_AIRTIME; | |
5333 | ||
581a8b0f JC |
5334 | |
5335 | if (tb[NL80211_MESH_SETUP_IE]) { | |
c80d545d | 5336 | struct nlattr *ieattr = |
581a8b0f | 5337 | tb[NL80211_MESH_SETUP_IE]; |
c80d545d JC |
5338 | if (!is_valid_ie_attr(ieattr)) |
5339 | return -EINVAL; | |
581a8b0f JC |
5340 | setup->ie = nla_data(ieattr); |
5341 | setup->ie_len = nla_len(ieattr); | |
c80d545d | 5342 | } |
bb2798d4 TP |
5343 | if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] && |
5344 | !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM)) | |
5345 | return -EINVAL; | |
5346 | setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]); | |
b130e5ce JC |
5347 | setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); |
5348 | setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); | |
bb2798d4 TP |
5349 | if (setup->is_secure) |
5350 | setup->user_mpm = true; | |
c80d545d | 5351 | |
6e16d90b CT |
5352 | if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) { |
5353 | if (!setup->user_mpm) | |
5354 | return -EINVAL; | |
5355 | setup->auth_id = | |
5356 | nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]); | |
5357 | } | |
5358 | ||
c80d545d JC |
5359 | return 0; |
5360 | } | |
5361 | ||
24bdd9f4 | 5362 | static int nl80211_update_mesh_config(struct sk_buff *skb, |
29cbe68c | 5363 | struct genl_info *info) |
bd90fdcc JB |
5364 | { |
5365 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5366 | struct net_device *dev = info->user_ptr[1]; | |
29cbe68c | 5367 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bd90fdcc JB |
5368 | struct mesh_config cfg; |
5369 | u32 mask; | |
5370 | int err; | |
5371 | ||
29cbe68c JB |
5372 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
5373 | return -EOPNOTSUPP; | |
5374 | ||
24bdd9f4 | 5375 | if (!rdev->ops->update_mesh_config) |
bd90fdcc JB |
5376 | return -EOPNOTSUPP; |
5377 | ||
24bdd9f4 | 5378 | err = nl80211_parse_mesh_config(info, &cfg, &mask); |
bd90fdcc JB |
5379 | if (err) |
5380 | return err; | |
5381 | ||
29cbe68c JB |
5382 | wdev_lock(wdev); |
5383 | if (!wdev->mesh_id_len) | |
5384 | err = -ENOLINK; | |
5385 | ||
5386 | if (!err) | |
e35e4d28 | 5387 | err = rdev_update_mesh_config(rdev, dev, mask, &cfg); |
29cbe68c JB |
5388 | |
5389 | wdev_unlock(wdev); | |
5390 | ||
5391 | return err; | |
93da9cc1 | 5392 | } |
5393 | ||
ad30ca2c AN |
5394 | static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom, |
5395 | struct sk_buff *msg) | |
f130347c | 5396 | { |
f130347c LR |
5397 | struct nlattr *nl_reg_rules; |
5398 | unsigned int i; | |
f130347c | 5399 | |
458f4f9e JB |
5400 | if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) || |
5401 | (regdom->dfs_region && | |
5402 | nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region))) | |
ad30ca2c | 5403 | goto nla_put_failure; |
458f4f9e | 5404 | |
f130347c LR |
5405 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); |
5406 | if (!nl_reg_rules) | |
ad30ca2c | 5407 | goto nla_put_failure; |
f130347c | 5408 | |
458f4f9e | 5409 | for (i = 0; i < regdom->n_reg_rules; i++) { |
f130347c LR |
5410 | struct nlattr *nl_reg_rule; |
5411 | const struct ieee80211_reg_rule *reg_rule; | |
5412 | const struct ieee80211_freq_range *freq_range; | |
5413 | const struct ieee80211_power_rule *power_rule; | |
97524820 | 5414 | unsigned int max_bandwidth_khz; |
f130347c | 5415 | |
458f4f9e | 5416 | reg_rule = ®dom->reg_rules[i]; |
f130347c LR |
5417 | freq_range = ®_rule->freq_range; |
5418 | power_rule = ®_rule->power_rule; | |
5419 | ||
5420 | nl_reg_rule = nla_nest_start(msg, i); | |
5421 | if (!nl_reg_rule) | |
ad30ca2c | 5422 | goto nla_put_failure; |
f130347c | 5423 | |
97524820 JD |
5424 | max_bandwidth_khz = freq_range->max_bandwidth_khz; |
5425 | if (!max_bandwidth_khz) | |
5426 | max_bandwidth_khz = reg_get_max_bandwidth(regdom, | |
5427 | reg_rule); | |
5428 | ||
9360ffd1 DM |
5429 | if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS, |
5430 | reg_rule->flags) || | |
5431 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
5432 | freq_range->start_freq_khz) || | |
5433 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
5434 | freq_range->end_freq_khz) || | |
5435 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
97524820 | 5436 | max_bandwidth_khz) || |
9360ffd1 DM |
5437 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, |
5438 | power_rule->max_antenna_gain) || | |
5439 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
089027e5 JD |
5440 | power_rule->max_eirp) || |
5441 | nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME, | |
5442 | reg_rule->dfs_cac_ms)) | |
ad30ca2c | 5443 | goto nla_put_failure; |
f130347c LR |
5444 | |
5445 | nla_nest_end(msg, nl_reg_rule); | |
5446 | } | |
5447 | ||
5448 | nla_nest_end(msg, nl_reg_rules); | |
ad30ca2c AN |
5449 | return 0; |
5450 | ||
5451 | nla_put_failure: | |
5452 | return -EMSGSIZE; | |
5453 | } | |
5454 | ||
5455 | static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info) | |
5456 | { | |
5457 | const struct ieee80211_regdomain *regdom = NULL; | |
5458 | struct cfg80211_registered_device *rdev; | |
5459 | struct wiphy *wiphy = NULL; | |
5460 | struct sk_buff *msg; | |
5461 | void *hdr; | |
5462 | ||
5463 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5464 | if (!msg) | |
5465 | return -ENOBUFS; | |
5466 | ||
5467 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
5468 | NL80211_CMD_GET_REG); | |
5469 | if (!hdr) | |
5470 | goto put_failure; | |
5471 | ||
5472 | if (info->attrs[NL80211_ATTR_WIPHY]) { | |
1bdd716c AN |
5473 | bool self_managed; |
5474 | ||
ad30ca2c AN |
5475 | rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); |
5476 | if (IS_ERR(rdev)) { | |
5477 | nlmsg_free(msg); | |
5478 | return PTR_ERR(rdev); | |
5479 | } | |
5480 | ||
5481 | wiphy = &rdev->wiphy; | |
1bdd716c AN |
5482 | self_managed = wiphy->regulatory_flags & |
5483 | REGULATORY_WIPHY_SELF_MANAGED; | |
ad30ca2c AN |
5484 | regdom = get_wiphy_regdom(wiphy); |
5485 | ||
1bdd716c AN |
5486 | /* a self-managed-reg device must have a private regdom */ |
5487 | if (WARN_ON(!regdom && self_managed)) { | |
5488 | nlmsg_free(msg); | |
5489 | return -EINVAL; | |
5490 | } | |
5491 | ||
ad30ca2c AN |
5492 | if (regdom && |
5493 | nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) | |
5494 | goto nla_put_failure; | |
5495 | } | |
5496 | ||
5497 | if (!wiphy && reg_last_request_cell_base() && | |
5498 | nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, | |
5499 | NL80211_USER_REG_HINT_CELL_BASE)) | |
5500 | goto nla_put_failure; | |
5501 | ||
5502 | rcu_read_lock(); | |
5503 | ||
5504 | if (!regdom) | |
5505 | regdom = rcu_dereference(cfg80211_regdomain); | |
5506 | ||
5507 | if (nl80211_put_regdom(regdom, msg)) | |
5508 | goto nla_put_failure_rcu; | |
5509 | ||
5510 | rcu_read_unlock(); | |
f130347c LR |
5511 | |
5512 | genlmsg_end(msg, hdr); | |
5fe231e8 | 5513 | return genlmsg_reply(msg, info); |
f130347c | 5514 | |
458f4f9e JB |
5515 | nla_put_failure_rcu: |
5516 | rcu_read_unlock(); | |
f130347c LR |
5517 | nla_put_failure: |
5518 | genlmsg_cancel(msg, hdr); | |
efe1cf0c | 5519 | put_failure: |
d080e275 | 5520 | nlmsg_free(msg); |
5fe231e8 | 5521 | return -EMSGSIZE; |
f130347c LR |
5522 | } |
5523 | ||
ad30ca2c AN |
5524 | static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb, |
5525 | u32 seq, int flags, struct wiphy *wiphy, | |
5526 | const struct ieee80211_regdomain *regdom) | |
5527 | { | |
5528 | void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, | |
5529 | NL80211_CMD_GET_REG); | |
5530 | ||
5531 | if (!hdr) | |
5532 | return -1; | |
5533 | ||
5534 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); | |
5535 | ||
5536 | if (nl80211_put_regdom(regdom, msg)) | |
5537 | goto nla_put_failure; | |
5538 | ||
5539 | if (!wiphy && reg_last_request_cell_base() && | |
5540 | nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, | |
5541 | NL80211_USER_REG_HINT_CELL_BASE)) | |
5542 | goto nla_put_failure; | |
5543 | ||
5544 | if (wiphy && | |
5545 | nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) | |
5546 | goto nla_put_failure; | |
5547 | ||
1bdd716c AN |
5548 | if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED && |
5549 | nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) | |
5550 | goto nla_put_failure; | |
5551 | ||
053c095a JB |
5552 | genlmsg_end(msg, hdr); |
5553 | return 0; | |
ad30ca2c AN |
5554 | |
5555 | nla_put_failure: | |
5556 | genlmsg_cancel(msg, hdr); | |
5557 | return -EMSGSIZE; | |
5558 | } | |
5559 | ||
5560 | static int nl80211_get_reg_dump(struct sk_buff *skb, | |
5561 | struct netlink_callback *cb) | |
5562 | { | |
5563 | const struct ieee80211_regdomain *regdom = NULL; | |
5564 | struct cfg80211_registered_device *rdev; | |
5565 | int err, reg_idx, start = cb->args[2]; | |
5566 | ||
5567 | rtnl_lock(); | |
5568 | ||
5569 | if (cfg80211_regdomain && start == 0) { | |
5570 | err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq, | |
5571 | NLM_F_MULTI, NULL, | |
5572 | rtnl_dereference(cfg80211_regdomain)); | |
5573 | if (err < 0) | |
5574 | goto out_err; | |
5575 | } | |
5576 | ||
5577 | /* the global regdom is idx 0 */ | |
5578 | reg_idx = 1; | |
5579 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
5580 | regdom = get_wiphy_regdom(&rdev->wiphy); | |
5581 | if (!regdom) | |
5582 | continue; | |
5583 | ||
5584 | if (++reg_idx <= start) | |
5585 | continue; | |
5586 | ||
5587 | err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq, | |
5588 | NLM_F_MULTI, &rdev->wiphy, regdom); | |
5589 | if (err < 0) { | |
5590 | reg_idx--; | |
5591 | break; | |
5592 | } | |
5593 | } | |
5594 | ||
5595 | cb->args[2] = reg_idx; | |
5596 | err = skb->len; | |
5597 | out_err: | |
5598 | rtnl_unlock(); | |
5599 | return err; | |
5600 | } | |
5601 | ||
b6863036 JB |
5602 | #ifdef CONFIG_CFG80211_CRDA_SUPPORT |
5603 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { | |
5604 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
5605 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
5606 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
5607 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
5608 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
5609 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
5610 | [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 }, | |
5611 | }; | |
5612 | ||
5613 | static int parse_reg_rule(struct nlattr *tb[], | |
5614 | struct ieee80211_reg_rule *reg_rule) | |
5615 | { | |
5616 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
5617 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
5618 | ||
5619 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
5620 | return -EINVAL; | |
5621 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
5622 | return -EINVAL; | |
5623 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
5624 | return -EINVAL; | |
5625 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
5626 | return -EINVAL; | |
5627 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
5628 | return -EINVAL; | |
5629 | ||
5630 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
5631 | ||
5632 | freq_range->start_freq_khz = | |
5633 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
5634 | freq_range->end_freq_khz = | |
5635 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
5636 | freq_range->max_bandwidth_khz = | |
5637 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
5638 | ||
5639 | power_rule->max_eirp = | |
5640 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
5641 | ||
5642 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
5643 | power_rule->max_antenna_gain = | |
5644 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
5645 | ||
5646 | if (tb[NL80211_ATTR_DFS_CAC_TIME]) | |
5647 | reg_rule->dfs_cac_ms = | |
5648 | nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]); | |
5649 | ||
5650 | return 0; | |
5651 | } | |
5652 | ||
b2e1b302 LR |
5653 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
5654 | { | |
5655 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
5656 | struct nlattr *nl_reg_rule; | |
ea372c54 JB |
5657 | char *alpha2; |
5658 | int rem_reg_rules, r; | |
b2e1b302 | 5659 | u32 num_rules = 0, rule_idx = 0, size_of_regd; |
4c7d3982 | 5660 | enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET; |
ea372c54 | 5661 | struct ieee80211_regdomain *rd; |
b2e1b302 LR |
5662 | |
5663 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
5664 | return -EINVAL; | |
5665 | ||
5666 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
5667 | return -EINVAL; | |
5668 | ||
5669 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
5670 | ||
8b60b078 LR |
5671 | if (info->attrs[NL80211_ATTR_DFS_REGION]) |
5672 | dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]); | |
5673 | ||
b2e1b302 | 5674 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
1a919318 | 5675 | rem_reg_rules) { |
b2e1b302 LR |
5676 | num_rules++; |
5677 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 5678 | return -EINVAL; |
b2e1b302 LR |
5679 | } |
5680 | ||
e438768f LR |
5681 | if (!reg_is_valid_request(alpha2)) |
5682 | return -EINVAL; | |
5683 | ||
b2e1b302 | 5684 | size_of_regd = sizeof(struct ieee80211_regdomain) + |
1a919318 | 5685 | num_rules * sizeof(struct ieee80211_reg_rule); |
b2e1b302 LR |
5686 | |
5687 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
6913b49a JB |
5688 | if (!rd) |
5689 | return -ENOMEM; | |
b2e1b302 LR |
5690 | |
5691 | rd->n_reg_rules = num_rules; | |
5692 | rd->alpha2[0] = alpha2[0]; | |
5693 | rd->alpha2[1] = alpha2[1]; | |
5694 | ||
8b60b078 LR |
5695 | /* |
5696 | * Disable DFS master mode if the DFS region was | |
5697 | * not supported or known on this kernel. | |
5698 | */ | |
5699 | if (reg_supported_dfs_region(dfs_region)) | |
5700 | rd->dfs_region = dfs_region; | |
5701 | ||
b2e1b302 | 5702 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
1a919318 | 5703 | rem_reg_rules) { |
ae811e21 JB |
5704 | r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, |
5705 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
5706 | reg_rule_policy); | |
5707 | if (r) | |
5708 | goto bad_reg; | |
b2e1b302 LR |
5709 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); |
5710 | if (r) | |
5711 | goto bad_reg; | |
5712 | ||
5713 | rule_idx++; | |
5714 | ||
d0e18f83 LR |
5715 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
5716 | r = -EINVAL; | |
b2e1b302 | 5717 | goto bad_reg; |
d0e18f83 | 5718 | } |
b2e1b302 LR |
5719 | } |
5720 | ||
c37722bd | 5721 | r = set_regdom(rd, REGD_SOURCE_CRDA); |
6913b49a | 5722 | /* set_regdom took ownership */ |
1a919318 | 5723 | rd = NULL; |
b2e1b302 | 5724 | |
d2372b31 | 5725 | bad_reg: |
b2e1b302 | 5726 | kfree(rd); |
d0e18f83 | 5727 | return r; |
b2e1b302 | 5728 | } |
b6863036 | 5729 | #endif /* CONFIG_CFG80211_CRDA_SUPPORT */ |
b2e1b302 | 5730 | |
83f5e2cf JB |
5731 | static int validate_scan_freqs(struct nlattr *freqs) |
5732 | { | |
5733 | struct nlattr *attr1, *attr2; | |
5734 | int n_channels = 0, tmp1, tmp2; | |
5735 | ||
5736 | nla_for_each_nested(attr1, freqs, tmp1) { | |
5737 | n_channels++; | |
5738 | /* | |
5739 | * Some hardware has a limited channel list for | |
5740 | * scanning, and it is pretty much nonsensical | |
5741 | * to scan for a channel twice, so disallow that | |
5742 | * and don't require drivers to check that the | |
5743 | * channel list they get isn't longer than what | |
5744 | * they can scan, as long as they can scan all | |
5745 | * the channels they registered at once. | |
5746 | */ | |
5747 | nla_for_each_nested(attr2, freqs, tmp2) | |
5748 | if (attr1 != attr2 && | |
5749 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
5750 | return 0; | |
5751 | } | |
5752 | ||
5753 | return n_channels; | |
5754 | } | |
5755 | ||
ad2b26ab JB |
5756 | static int nl80211_parse_random_mac(struct nlattr **attrs, |
5757 | u8 *mac_addr, u8 *mac_addr_mask) | |
5758 | { | |
5759 | int i; | |
5760 | ||
5761 | if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) { | |
d2beae10 JP |
5762 | eth_zero_addr(mac_addr); |
5763 | eth_zero_addr(mac_addr_mask); | |
ad2b26ab JB |
5764 | mac_addr[0] = 0x2; |
5765 | mac_addr_mask[0] = 0x3; | |
5766 | ||
5767 | return 0; | |
5768 | } | |
5769 | ||
5770 | /* need both or none */ | |
5771 | if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK]) | |
5772 | return -EINVAL; | |
5773 | ||
5774 | memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN); | |
5775 | memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN); | |
5776 | ||
5777 | /* don't allow or configure an mcast address */ | |
5778 | if (!is_multicast_ether_addr(mac_addr_mask) || | |
5779 | is_multicast_ether_addr(mac_addr)) | |
5780 | return -EINVAL; | |
5781 | ||
5782 | /* | |
5783 | * allow users to pass a MAC address that has bits set outside | |
5784 | * of the mask, but don't bother drivers with having to deal | |
5785 | * with such bits | |
5786 | */ | |
5787 | for (i = 0; i < ETH_ALEN; i++) | |
5788 | mac_addr[i] &= mac_addr_mask[i]; | |
5789 | ||
5790 | return 0; | |
5791 | } | |
5792 | ||
2a519311 JB |
5793 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
5794 | { | |
4c476991 | 5795 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fd014284 | 5796 | struct wireless_dev *wdev = info->user_ptr[1]; |
2a519311 | 5797 | struct cfg80211_scan_request *request; |
2a519311 JB |
5798 | struct nlattr *attr; |
5799 | struct wiphy *wiphy; | |
83f5e2cf | 5800 | int err, tmp, n_ssids = 0, n_channels, i; |
70692ad2 | 5801 | size_t ie_len; |
2a519311 | 5802 | |
f4a11bb0 JB |
5803 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5804 | return -EINVAL; | |
5805 | ||
79c97e97 | 5806 | wiphy = &rdev->wiphy; |
2a519311 | 5807 | |
4c476991 JB |
5808 | if (!rdev->ops->scan) |
5809 | return -EOPNOTSUPP; | |
2a519311 | 5810 | |
f9d15d16 | 5811 | if (rdev->scan_req || rdev->scan_msg) { |
f9f47529 JB |
5812 | err = -EBUSY; |
5813 | goto unlock; | |
5814 | } | |
2a519311 JB |
5815 | |
5816 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
5817 | n_channels = validate_scan_freqs( |
5818 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
f9f47529 JB |
5819 | if (!n_channels) { |
5820 | err = -EINVAL; | |
5821 | goto unlock; | |
5822 | } | |
2a519311 | 5823 | } else { |
bdfbec2d | 5824 | n_channels = ieee80211_get_num_supported_channels(wiphy); |
2a519311 JB |
5825 | } |
5826 | ||
5827 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
5828 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
5829 | n_ssids++; | |
5830 | ||
f9f47529 JB |
5831 | if (n_ssids > wiphy->max_scan_ssids) { |
5832 | err = -EINVAL; | |
5833 | goto unlock; | |
5834 | } | |
2a519311 | 5835 | |
70692ad2 JM |
5836 | if (info->attrs[NL80211_ATTR_IE]) |
5837 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5838 | else | |
5839 | ie_len = 0; | |
5840 | ||
f9f47529 JB |
5841 | if (ie_len > wiphy->max_scan_ie_len) { |
5842 | err = -EINVAL; | |
5843 | goto unlock; | |
5844 | } | |
18a83659 | 5845 | |
2a519311 | 5846 | request = kzalloc(sizeof(*request) |
a2cd43c5 LC |
5847 | + sizeof(*request->ssids) * n_ssids |
5848 | + sizeof(*request->channels) * n_channels | |
70692ad2 | 5849 | + ie_len, GFP_KERNEL); |
f9f47529 JB |
5850 | if (!request) { |
5851 | err = -ENOMEM; | |
5852 | goto unlock; | |
5853 | } | |
2a519311 | 5854 | |
2a519311 | 5855 | if (n_ssids) |
5ba63533 | 5856 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 5857 | request->n_ssids = n_ssids; |
70692ad2 | 5858 | if (ie_len) { |
13874e4b | 5859 | if (n_ssids) |
70692ad2 JM |
5860 | request->ie = (void *)(request->ssids + n_ssids); |
5861 | else | |
5862 | request->ie = (void *)(request->channels + n_channels); | |
5863 | } | |
2a519311 | 5864 | |
584991dc | 5865 | i = 0; |
2a519311 JB |
5866 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
5867 | /* user specified, bail out if channel not found */ | |
2a519311 | 5868 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
5869 | struct ieee80211_channel *chan; |
5870 | ||
5871 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
5872 | ||
5873 | if (!chan) { | |
2a519311 JB |
5874 | err = -EINVAL; |
5875 | goto out_free; | |
5876 | } | |
584991dc JB |
5877 | |
5878 | /* ignore disabled channels */ | |
5879 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
5880 | continue; | |
5881 | ||
5882 | request->channels[i] = chan; | |
2a519311 JB |
5883 | i++; |
5884 | } | |
5885 | } else { | |
34850ab2 JB |
5886 | enum ieee80211_band band; |
5887 | ||
2a519311 | 5888 | /* all channels */ |
2a519311 JB |
5889 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
5890 | int j; | |
5891 | if (!wiphy->bands[band]) | |
5892 | continue; | |
5893 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
5894 | struct ieee80211_channel *chan; |
5895 | ||
5896 | chan = &wiphy->bands[band]->channels[j]; | |
5897 | ||
5898 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
5899 | continue; | |
5900 | ||
5901 | request->channels[i] = chan; | |
2a519311 JB |
5902 | i++; |
5903 | } | |
5904 | } | |
5905 | } | |
5906 | ||
584991dc JB |
5907 | if (!i) { |
5908 | err = -EINVAL; | |
5909 | goto out_free; | |
5910 | } | |
5911 | ||
5912 | request->n_channels = i; | |
5913 | ||
2a519311 | 5914 | i = 0; |
13874e4b | 5915 | if (n_ssids) { |
2a519311 | 5916 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { |
57a27e1d | 5917 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
2a519311 JB |
5918 | err = -EINVAL; |
5919 | goto out_free; | |
5920 | } | |
57a27e1d | 5921 | request->ssids[i].ssid_len = nla_len(attr); |
2a519311 | 5922 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); |
2a519311 JB |
5923 | i++; |
5924 | } | |
5925 | } | |
5926 | ||
70692ad2 JM |
5927 | if (info->attrs[NL80211_ATTR_IE]) { |
5928 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
5929 | memcpy((void *)request->ie, |
5930 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
5931 | request->ie_len); |
5932 | } | |
5933 | ||
34850ab2 | 5934 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) |
a401d2bb JB |
5935 | if (wiphy->bands[i]) |
5936 | request->rates[i] = | |
5937 | (1 << wiphy->bands[i]->n_bitrates) - 1; | |
34850ab2 JB |
5938 | |
5939 | if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) { | |
5940 | nla_for_each_nested(attr, | |
5941 | info->attrs[NL80211_ATTR_SCAN_SUPP_RATES], | |
5942 | tmp) { | |
5943 | enum ieee80211_band band = nla_type(attr); | |
5944 | ||
84404623 | 5945 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { |
34850ab2 JB |
5946 | err = -EINVAL; |
5947 | goto out_free; | |
5948 | } | |
1b09cd82 FF |
5949 | |
5950 | if (!wiphy->bands[band]) | |
5951 | continue; | |
5952 | ||
34850ab2 JB |
5953 | err = ieee80211_get_ratemask(wiphy->bands[band], |
5954 | nla_data(attr), | |
5955 | nla_len(attr), | |
5956 | &request->rates[band]); | |
5957 | if (err) | |
5958 | goto out_free; | |
5959 | } | |
5960 | } | |
5961 | ||
46856bbf | 5962 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { |
ed473771 SL |
5963 | request->flags = nla_get_u32( |
5964 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); | |
00c3a6ed JB |
5965 | if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
5966 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) { | |
46856bbf SL |
5967 | err = -EOPNOTSUPP; |
5968 | goto out_free; | |
5969 | } | |
ad2b26ab JB |
5970 | |
5971 | if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { | |
5972 | if (!(wiphy->features & | |
5973 | NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) { | |
5974 | err = -EOPNOTSUPP; | |
5975 | goto out_free; | |
5976 | } | |
5977 | ||
5978 | if (wdev->current_bss) { | |
5979 | err = -EOPNOTSUPP; | |
5980 | goto out_free; | |
5981 | } | |
5982 | ||
5983 | err = nl80211_parse_random_mac(info->attrs, | |
5984 | request->mac_addr, | |
5985 | request->mac_addr_mask); | |
5986 | if (err) | |
5987 | goto out_free; | |
5988 | } | |
46856bbf | 5989 | } |
ed473771 | 5990 | |
e9f935e3 RM |
5991 | request->no_cck = |
5992 | nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); | |
5993 | ||
fd014284 | 5994 | request->wdev = wdev; |
79c97e97 | 5995 | request->wiphy = &rdev->wiphy; |
15d6030b | 5996 | request->scan_start = jiffies; |
2a519311 | 5997 | |
79c97e97 | 5998 | rdev->scan_req = request; |
e35e4d28 | 5999 | err = rdev_scan(rdev, request); |
2a519311 | 6000 | |
463d0183 | 6001 | if (!err) { |
fd014284 JB |
6002 | nl80211_send_scan_start(rdev, wdev); |
6003 | if (wdev->netdev) | |
6004 | dev_hold(wdev->netdev); | |
4c476991 | 6005 | } else { |
2a519311 | 6006 | out_free: |
79c97e97 | 6007 | rdev->scan_req = NULL; |
2a519311 JB |
6008 | kfree(request); |
6009 | } | |
3b85875a | 6010 | |
f9f47529 | 6011 | unlock: |
2a519311 JB |
6012 | return err; |
6013 | } | |
6014 | ||
91d3ab46 VK |
6015 | static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info) |
6016 | { | |
6017 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6018 | struct wireless_dev *wdev = info->user_ptr[1]; | |
6019 | ||
6020 | if (!rdev->ops->abort_scan) | |
6021 | return -EOPNOTSUPP; | |
6022 | ||
6023 | if (rdev->scan_msg) | |
6024 | return 0; | |
6025 | ||
6026 | if (!rdev->scan_req) | |
6027 | return -ENOENT; | |
6028 | ||
6029 | rdev_abort_scan(rdev, wdev); | |
6030 | return 0; | |
6031 | } | |
6032 | ||
3b06d277 AS |
6033 | static int |
6034 | nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans, | |
6035 | struct cfg80211_sched_scan_request *request, | |
6036 | struct nlattr **attrs) | |
6037 | { | |
6038 | int tmp, err, i = 0; | |
6039 | struct nlattr *attr; | |
6040 | ||
6041 | if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) { | |
6042 | u32 interval; | |
6043 | ||
6044 | /* | |
6045 | * If scan plans are not specified, | |
6046 | * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this | |
6047 | * case one scan plan will be set with the specified scan | |
6048 | * interval and infinite number of iterations. | |
6049 | */ | |
6050 | if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) | |
6051 | return -EINVAL; | |
6052 | ||
6053 | interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); | |
6054 | if (!interval) | |
6055 | return -EINVAL; | |
6056 | ||
6057 | request->scan_plans[0].interval = | |
6058 | DIV_ROUND_UP(interval, MSEC_PER_SEC); | |
6059 | if (!request->scan_plans[0].interval) | |
6060 | return -EINVAL; | |
6061 | ||
6062 | if (request->scan_plans[0].interval > | |
6063 | wiphy->max_sched_scan_plan_interval) | |
6064 | request->scan_plans[0].interval = | |
6065 | wiphy->max_sched_scan_plan_interval; | |
6066 | ||
6067 | return 0; | |
6068 | } | |
6069 | ||
6070 | nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) { | |
6071 | struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1]; | |
6072 | ||
6073 | if (WARN_ON(i >= n_plans)) | |
6074 | return -EINVAL; | |
6075 | ||
6076 | err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX, | |
6077 | nla_data(attr), nla_len(attr), | |
6078 | nl80211_plan_policy); | |
6079 | if (err) | |
6080 | return err; | |
6081 | ||
6082 | if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]) | |
6083 | return -EINVAL; | |
6084 | ||
6085 | request->scan_plans[i].interval = | |
6086 | nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]); | |
6087 | if (!request->scan_plans[i].interval || | |
6088 | request->scan_plans[i].interval > | |
6089 | wiphy->max_sched_scan_plan_interval) | |
6090 | return -EINVAL; | |
6091 | ||
6092 | if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) { | |
6093 | request->scan_plans[i].iterations = | |
6094 | nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]); | |
6095 | if (!request->scan_plans[i].iterations || | |
6096 | (request->scan_plans[i].iterations > | |
6097 | wiphy->max_sched_scan_plan_iterations)) | |
6098 | return -EINVAL; | |
6099 | } else if (i < n_plans - 1) { | |
6100 | /* | |
6101 | * All scan plans but the last one must specify | |
6102 | * a finite number of iterations | |
6103 | */ | |
6104 | return -EINVAL; | |
6105 | } | |
6106 | ||
6107 | i++; | |
6108 | } | |
6109 | ||
6110 | /* | |
6111 | * The last scan plan must not specify the number of | |
6112 | * iterations, it is supposed to run infinitely | |
6113 | */ | |
6114 | if (request->scan_plans[n_plans - 1].iterations) | |
6115 | return -EINVAL; | |
6116 | ||
6117 | return 0; | |
6118 | } | |
6119 | ||
256da02d | 6120 | static struct cfg80211_sched_scan_request * |
ad2b26ab | 6121 | nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev, |
256da02d | 6122 | struct nlattr **attrs) |
807f8a8c LC |
6123 | { |
6124 | struct cfg80211_sched_scan_request *request; | |
807f8a8c | 6125 | struct nlattr *attr; |
3b06d277 | 6126 | int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0; |
807f8a8c LC |
6127 | enum ieee80211_band band; |
6128 | size_t ie_len; | |
a1f1c21c | 6129 | struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1]; |
ea73cbce | 6130 | s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF; |
807f8a8c | 6131 | |
256da02d LC |
6132 | if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE])) |
6133 | return ERR_PTR(-EINVAL); | |
807f8a8c | 6134 | |
256da02d | 6135 | if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
807f8a8c | 6136 | n_channels = validate_scan_freqs( |
256da02d | 6137 | attrs[NL80211_ATTR_SCAN_FREQUENCIES]); |
807f8a8c | 6138 | if (!n_channels) |
256da02d | 6139 | return ERR_PTR(-EINVAL); |
807f8a8c | 6140 | } else { |
bdfbec2d | 6141 | n_channels = ieee80211_get_num_supported_channels(wiphy); |
807f8a8c LC |
6142 | } |
6143 | ||
256da02d LC |
6144 | if (attrs[NL80211_ATTR_SCAN_SSIDS]) |
6145 | nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS], | |
807f8a8c LC |
6146 | tmp) |
6147 | n_ssids++; | |
6148 | ||
93b6aa69 | 6149 | if (n_ssids > wiphy->max_sched_scan_ssids) |
256da02d | 6150 | return ERR_PTR(-EINVAL); |
807f8a8c | 6151 | |
ea73cbce JB |
6152 | /* |
6153 | * First, count the number of 'real' matchsets. Due to an issue with | |
6154 | * the old implementation, matchsets containing only the RSSI attribute | |
6155 | * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default' | |
6156 | * RSSI for all matchsets, rather than their own matchset for reporting | |
6157 | * all APs with a strong RSSI. This is needed to be compatible with | |
6158 | * older userspace that treated a matchset with only the RSSI as the | |
6159 | * global RSSI for all other matchsets - if there are other matchsets. | |
6160 | */ | |
256da02d | 6161 | if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { |
a1f1c21c | 6162 | nla_for_each_nested(attr, |
256da02d | 6163 | attrs[NL80211_ATTR_SCHED_SCAN_MATCH], |
ea73cbce JB |
6164 | tmp) { |
6165 | struct nlattr *rssi; | |
6166 | ||
6167 | err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, | |
6168 | nla_data(attr), nla_len(attr), | |
6169 | nl80211_match_policy); | |
6170 | if (err) | |
256da02d | 6171 | return ERR_PTR(err); |
ea73cbce JB |
6172 | /* add other standalone attributes here */ |
6173 | if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) { | |
6174 | n_match_sets++; | |
6175 | continue; | |
6176 | } | |
6177 | rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; | |
6178 | if (rssi) | |
6179 | default_match_rssi = nla_get_s32(rssi); | |
6180 | } | |
6181 | } | |
6182 | ||
6183 | /* However, if there's no other matchset, add the RSSI one */ | |
6184 | if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF) | |
6185 | n_match_sets = 1; | |
a1f1c21c LC |
6186 | |
6187 | if (n_match_sets > wiphy->max_match_sets) | |
256da02d | 6188 | return ERR_PTR(-EINVAL); |
a1f1c21c | 6189 | |
256da02d LC |
6190 | if (attrs[NL80211_ATTR_IE]) |
6191 | ie_len = nla_len(attrs[NL80211_ATTR_IE]); | |
807f8a8c LC |
6192 | else |
6193 | ie_len = 0; | |
6194 | ||
5a865bad | 6195 | if (ie_len > wiphy->max_sched_scan_ie_len) |
256da02d | 6196 | return ERR_PTR(-EINVAL); |
c10841ca | 6197 | |
3b06d277 AS |
6198 | if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) { |
6199 | /* | |
6200 | * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since | |
6201 | * each scan plan already specifies its own interval | |
6202 | */ | |
6203 | if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) | |
6204 | return ERR_PTR(-EINVAL); | |
6205 | ||
6206 | nla_for_each_nested(attr, | |
6207 | attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) | |
6208 | n_plans++; | |
6209 | } else { | |
6210 | /* | |
6211 | * The scan interval attribute is kept for backward | |
6212 | * compatibility. If no scan plans are specified and sched scan | |
6213 | * interval is specified, one scan plan will be set with this | |
6214 | * scan interval and infinite number of iterations. | |
6215 | */ | |
6216 | if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) | |
6217 | return ERR_PTR(-EINVAL); | |
6218 | ||
6219 | n_plans = 1; | |
6220 | } | |
6221 | ||
6222 | if (!n_plans || n_plans > wiphy->max_sched_scan_plans) | |
6223 | return ERR_PTR(-EINVAL); | |
6224 | ||
807f8a8c | 6225 | request = kzalloc(sizeof(*request) |
a2cd43c5 | 6226 | + sizeof(*request->ssids) * n_ssids |
a1f1c21c | 6227 | + sizeof(*request->match_sets) * n_match_sets |
3b06d277 | 6228 | + sizeof(*request->scan_plans) * n_plans |
a2cd43c5 | 6229 | + sizeof(*request->channels) * n_channels |
807f8a8c | 6230 | + ie_len, GFP_KERNEL); |
256da02d LC |
6231 | if (!request) |
6232 | return ERR_PTR(-ENOMEM); | |
807f8a8c LC |
6233 | |
6234 | if (n_ssids) | |
6235 | request->ssids = (void *)&request->channels[n_channels]; | |
6236 | request->n_ssids = n_ssids; | |
6237 | if (ie_len) { | |
13874e4b | 6238 | if (n_ssids) |
807f8a8c LC |
6239 | request->ie = (void *)(request->ssids + n_ssids); |
6240 | else | |
6241 | request->ie = (void *)(request->channels + n_channels); | |
6242 | } | |
6243 | ||
a1f1c21c LC |
6244 | if (n_match_sets) { |
6245 | if (request->ie) | |
6246 | request->match_sets = (void *)(request->ie + ie_len); | |
13874e4b | 6247 | else if (n_ssids) |
a1f1c21c LC |
6248 | request->match_sets = |
6249 | (void *)(request->ssids + n_ssids); | |
6250 | else | |
6251 | request->match_sets = | |
6252 | (void *)(request->channels + n_channels); | |
6253 | } | |
6254 | request->n_match_sets = n_match_sets; | |
6255 | ||
3b06d277 AS |
6256 | if (n_match_sets) |
6257 | request->scan_plans = (void *)(request->match_sets + | |
6258 | n_match_sets); | |
6259 | else if (request->ie) | |
6260 | request->scan_plans = (void *)(request->ie + ie_len); | |
6261 | else if (n_ssids) | |
6262 | request->scan_plans = (void *)(request->ssids + n_ssids); | |
6263 | else | |
6264 | request->scan_plans = (void *)(request->channels + n_channels); | |
6265 | ||
6266 | request->n_scan_plans = n_plans; | |
6267 | ||
807f8a8c | 6268 | i = 0; |
256da02d | 6269 | if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
807f8a8c LC |
6270 | /* user specified, bail out if channel not found */ |
6271 | nla_for_each_nested(attr, | |
256da02d | 6272 | attrs[NL80211_ATTR_SCAN_FREQUENCIES], |
807f8a8c LC |
6273 | tmp) { |
6274 | struct ieee80211_channel *chan; | |
6275 | ||
6276 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
6277 | ||
6278 | if (!chan) { | |
6279 | err = -EINVAL; | |
6280 | goto out_free; | |
6281 | } | |
6282 | ||
6283 | /* ignore disabled channels */ | |
6284 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
6285 | continue; | |
6286 | ||
6287 | request->channels[i] = chan; | |
6288 | i++; | |
6289 | } | |
6290 | } else { | |
6291 | /* all channels */ | |
6292 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
6293 | int j; | |
6294 | if (!wiphy->bands[band]) | |
6295 | continue; | |
6296 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
6297 | struct ieee80211_channel *chan; | |
6298 | ||
6299 | chan = &wiphy->bands[band]->channels[j]; | |
6300 | ||
6301 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
6302 | continue; | |
6303 | ||
6304 | request->channels[i] = chan; | |
6305 | i++; | |
6306 | } | |
6307 | } | |
6308 | } | |
6309 | ||
6310 | if (!i) { | |
6311 | err = -EINVAL; | |
6312 | goto out_free; | |
6313 | } | |
6314 | ||
6315 | request->n_channels = i; | |
6316 | ||
6317 | i = 0; | |
13874e4b | 6318 | if (n_ssids) { |
256da02d | 6319 | nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS], |
807f8a8c | 6320 | tmp) { |
57a27e1d | 6321 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
807f8a8c LC |
6322 | err = -EINVAL; |
6323 | goto out_free; | |
6324 | } | |
57a27e1d | 6325 | request->ssids[i].ssid_len = nla_len(attr); |
807f8a8c LC |
6326 | memcpy(request->ssids[i].ssid, nla_data(attr), |
6327 | nla_len(attr)); | |
807f8a8c LC |
6328 | i++; |
6329 | } | |
6330 | } | |
6331 | ||
a1f1c21c | 6332 | i = 0; |
256da02d | 6333 | if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { |
a1f1c21c | 6334 | nla_for_each_nested(attr, |
256da02d | 6335 | attrs[NL80211_ATTR_SCHED_SCAN_MATCH], |
a1f1c21c | 6336 | tmp) { |
88e920b4 | 6337 | struct nlattr *ssid, *rssi; |
a1f1c21c | 6338 | |
ae811e21 JB |
6339 | err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, |
6340 | nla_data(attr), nla_len(attr), | |
6341 | nl80211_match_policy); | |
6342 | if (err) | |
6343 | goto out_free; | |
4a4ab0d7 | 6344 | ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]; |
a1f1c21c | 6345 | if (ssid) { |
ea73cbce JB |
6346 | if (WARN_ON(i >= n_match_sets)) { |
6347 | /* this indicates a programming error, | |
6348 | * the loop above should have verified | |
6349 | * things properly | |
6350 | */ | |
6351 | err = -EINVAL; | |
6352 | goto out_free; | |
6353 | } | |
6354 | ||
a1f1c21c LC |
6355 | if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { |
6356 | err = -EINVAL; | |
6357 | goto out_free; | |
6358 | } | |
6359 | memcpy(request->match_sets[i].ssid.ssid, | |
6360 | nla_data(ssid), nla_len(ssid)); | |
6361 | request->match_sets[i].ssid.ssid_len = | |
6362 | nla_len(ssid); | |
ea73cbce JB |
6363 | /* special attribute - old implemenation w/a */ |
6364 | request->match_sets[i].rssi_thold = | |
6365 | default_match_rssi; | |
6366 | rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; | |
6367 | if (rssi) | |
6368 | request->match_sets[i].rssi_thold = | |
6369 | nla_get_s32(rssi); | |
a1f1c21c LC |
6370 | } |
6371 | i++; | |
6372 | } | |
ea73cbce JB |
6373 | |
6374 | /* there was no other matchset, so the RSSI one is alone */ | |
f89f46cf | 6375 | if (i == 0 && n_match_sets) |
ea73cbce JB |
6376 | request->match_sets[0].rssi_thold = default_match_rssi; |
6377 | ||
6378 | request->min_rssi_thold = INT_MAX; | |
6379 | for (i = 0; i < n_match_sets; i++) | |
6380 | request->min_rssi_thold = | |
6381 | min(request->match_sets[i].rssi_thold, | |
6382 | request->min_rssi_thold); | |
6383 | } else { | |
6384 | request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF; | |
a1f1c21c LC |
6385 | } |
6386 | ||
9900e484 JB |
6387 | if (ie_len) { |
6388 | request->ie_len = ie_len; | |
807f8a8c | 6389 | memcpy((void *)request->ie, |
256da02d | 6390 | nla_data(attrs[NL80211_ATTR_IE]), |
807f8a8c LC |
6391 | request->ie_len); |
6392 | } | |
6393 | ||
256da02d | 6394 | if (attrs[NL80211_ATTR_SCAN_FLAGS]) { |
ed473771 | 6395 | request->flags = nla_get_u32( |
256da02d | 6396 | attrs[NL80211_ATTR_SCAN_FLAGS]); |
00c3a6ed JB |
6397 | if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
6398 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) { | |
46856bbf SL |
6399 | err = -EOPNOTSUPP; |
6400 | goto out_free; | |
6401 | } | |
ad2b26ab JB |
6402 | |
6403 | if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { | |
6404 | u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR; | |
6405 | ||
6406 | if (!wdev) /* must be net-detect */ | |
6407 | flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR; | |
6408 | ||
6409 | if (!(wiphy->features & flg)) { | |
6410 | err = -EOPNOTSUPP; | |
6411 | goto out_free; | |
6412 | } | |
6413 | ||
6414 | if (wdev && wdev->current_bss) { | |
6415 | err = -EOPNOTSUPP; | |
6416 | goto out_free; | |
6417 | } | |
6418 | ||
6419 | err = nl80211_parse_random_mac(attrs, request->mac_addr, | |
6420 | request->mac_addr_mask); | |
6421 | if (err) | |
6422 | goto out_free; | |
6423 | } | |
46856bbf | 6424 | } |
ed473771 | 6425 | |
9c748934 LC |
6426 | if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY]) |
6427 | request->delay = | |
6428 | nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]); | |
6429 | ||
3b06d277 AS |
6430 | err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs); |
6431 | if (err) | |
6432 | goto out_free; | |
6433 | ||
15d6030b | 6434 | request->scan_start = jiffies; |
807f8a8c | 6435 | |
256da02d | 6436 | return request; |
807f8a8c LC |
6437 | |
6438 | out_free: | |
6439 | kfree(request); | |
256da02d LC |
6440 | return ERR_PTR(err); |
6441 | } | |
6442 | ||
6443 | static int nl80211_start_sched_scan(struct sk_buff *skb, | |
6444 | struct genl_info *info) | |
6445 | { | |
6446 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6447 | struct net_device *dev = info->user_ptr[1]; | |
ad2b26ab | 6448 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
31a60ed1 | 6449 | struct cfg80211_sched_scan_request *sched_scan_req; |
256da02d LC |
6450 | int err; |
6451 | ||
6452 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
6453 | !rdev->ops->sched_scan_start) | |
6454 | return -EOPNOTSUPP; | |
6455 | ||
6456 | if (rdev->sched_scan_req) | |
6457 | return -EINPROGRESS; | |
6458 | ||
31a60ed1 JR |
6459 | sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev, |
6460 | info->attrs); | |
6461 | ||
6462 | err = PTR_ERR_OR_ZERO(sched_scan_req); | |
256da02d LC |
6463 | if (err) |
6464 | goto out_err; | |
6465 | ||
31a60ed1 | 6466 | err = rdev_sched_scan_start(rdev, dev, sched_scan_req); |
256da02d LC |
6467 | if (err) |
6468 | goto out_free; | |
6469 | ||
31a60ed1 JR |
6470 | sched_scan_req->dev = dev; |
6471 | sched_scan_req->wiphy = &rdev->wiphy; | |
6472 | ||
93a1e86c JR |
6473 | if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) |
6474 | sched_scan_req->owner_nlportid = info->snd_portid; | |
6475 | ||
31a60ed1 | 6476 | rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req); |
256da02d LC |
6477 | |
6478 | nl80211_send_sched_scan(rdev, dev, | |
6479 | NL80211_CMD_START_SCHED_SCAN); | |
6480 | return 0; | |
6481 | ||
6482 | out_free: | |
31a60ed1 | 6483 | kfree(sched_scan_req); |
256da02d | 6484 | out_err: |
807f8a8c LC |
6485 | return err; |
6486 | } | |
6487 | ||
6488 | static int nl80211_stop_sched_scan(struct sk_buff *skb, | |
6489 | struct genl_info *info) | |
6490 | { | |
6491 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6492 | ||
6493 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
6494 | !rdev->ops->sched_scan_stop) | |
6495 | return -EOPNOTSUPP; | |
6496 | ||
5fe231e8 | 6497 | return __cfg80211_stop_sched_scan(rdev, false); |
807f8a8c LC |
6498 | } |
6499 | ||
04f39047 SW |
6500 | static int nl80211_start_radar_detection(struct sk_buff *skb, |
6501 | struct genl_info *info) | |
6502 | { | |
6503 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6504 | struct net_device *dev = info->user_ptr[1]; | |
6505 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6506 | struct cfg80211_chan_def chandef; | |
55f7435c | 6507 | enum nl80211_dfs_regions dfs_region; |
31559f35 | 6508 | unsigned int cac_time_ms; |
04f39047 SW |
6509 | int err; |
6510 | ||
55f7435c LR |
6511 | dfs_region = reg_get_dfs_region(wdev->wiphy); |
6512 | if (dfs_region == NL80211_DFS_UNSET) | |
6513 | return -EINVAL; | |
6514 | ||
04f39047 SW |
6515 | err = nl80211_parse_chandef(rdev, info, &chandef); |
6516 | if (err) | |
6517 | return err; | |
6518 | ||
ff311bc1 SW |
6519 | if (netif_carrier_ok(dev)) |
6520 | return -EBUSY; | |
6521 | ||
04f39047 SW |
6522 | if (wdev->cac_started) |
6523 | return -EBUSY; | |
6524 | ||
2beb6dab | 6525 | err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, |
00ec75fc | 6526 | wdev->iftype); |
04f39047 SW |
6527 | if (err < 0) |
6528 | return err; | |
6529 | ||
6530 | if (err == 0) | |
6531 | return -EINVAL; | |
6532 | ||
fe7c3a1f | 6533 | if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef)) |
04f39047 SW |
6534 | return -EINVAL; |
6535 | ||
6536 | if (!rdev->ops->start_radar_detection) | |
6537 | return -EOPNOTSUPP; | |
6538 | ||
31559f35 JD |
6539 | cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef); |
6540 | if (WARN_ON(!cac_time_ms)) | |
6541 | cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS; | |
6542 | ||
a1056b1b | 6543 | err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms); |
04f39047 | 6544 | if (!err) { |
9e0e2961 | 6545 | wdev->chandef = chandef; |
04f39047 SW |
6546 | wdev->cac_started = true; |
6547 | wdev->cac_start_time = jiffies; | |
31559f35 | 6548 | wdev->cac_time_ms = cac_time_ms; |
04f39047 | 6549 | } |
04f39047 SW |
6550 | return err; |
6551 | } | |
6552 | ||
16ef1fe2 SW |
6553 | static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info) |
6554 | { | |
6555 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6556 | struct net_device *dev = info->user_ptr[1]; | |
6557 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6558 | struct cfg80211_csa_settings params; | |
6559 | /* csa_attrs is defined static to avoid waste of stack size - this | |
6560 | * function is called under RTNL lock, so this should not be a problem. | |
6561 | */ | |
6562 | static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1]; | |
16ef1fe2 | 6563 | int err; |
ee4bc9e7 | 6564 | bool need_new_beacon = false; |
9a774c78 | 6565 | int len, i; |
252e07ca | 6566 | u32 cs_count; |
16ef1fe2 SW |
6567 | |
6568 | if (!rdev->ops->channel_switch || | |
6569 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)) | |
6570 | return -EOPNOTSUPP; | |
6571 | ||
ee4bc9e7 SW |
6572 | switch (dev->ieee80211_ptr->iftype) { |
6573 | case NL80211_IFTYPE_AP: | |
6574 | case NL80211_IFTYPE_P2P_GO: | |
6575 | need_new_beacon = true; | |
6576 | ||
6577 | /* useless if AP is not running */ | |
6578 | if (!wdev->beacon_interval) | |
1ff79dfa | 6579 | return -ENOTCONN; |
ee4bc9e7 SW |
6580 | break; |
6581 | case NL80211_IFTYPE_ADHOC: | |
1ff79dfa JB |
6582 | if (!wdev->ssid_len) |
6583 | return -ENOTCONN; | |
6584 | break; | |
c6da674a | 6585 | case NL80211_IFTYPE_MESH_POINT: |
1ff79dfa JB |
6586 | if (!wdev->mesh_id_len) |
6587 | return -ENOTCONN; | |
ee4bc9e7 SW |
6588 | break; |
6589 | default: | |
16ef1fe2 | 6590 | return -EOPNOTSUPP; |
ee4bc9e7 | 6591 | } |
16ef1fe2 SW |
6592 | |
6593 | memset(¶ms, 0, sizeof(params)); | |
6594 | ||
6595 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
6596 | !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]) | |
6597 | return -EINVAL; | |
6598 | ||
6599 | /* only important for AP, IBSS and mesh create IEs internally */ | |
d0a361a5 | 6600 | if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES]) |
16ef1fe2 SW |
6601 | return -EINVAL; |
6602 | ||
252e07ca LC |
6603 | /* Even though the attribute is u32, the specification says |
6604 | * u8, so let's make sure we don't overflow. | |
6605 | */ | |
6606 | cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]); | |
6607 | if (cs_count > 255) | |
6608 | return -EINVAL; | |
6609 | ||
6610 | params.count = cs_count; | |
16ef1fe2 | 6611 | |
ee4bc9e7 SW |
6612 | if (!need_new_beacon) |
6613 | goto skip_beacons; | |
6614 | ||
16ef1fe2 SW |
6615 | err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after); |
6616 | if (err) | |
6617 | return err; | |
6618 | ||
6619 | err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX, | |
6620 | info->attrs[NL80211_ATTR_CSA_IES], | |
6621 | nl80211_policy); | |
6622 | if (err) | |
6623 | return err; | |
6624 | ||
6625 | err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa); | |
6626 | if (err) | |
6627 | return err; | |
6628 | ||
6629 | if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]) | |
6630 | return -EINVAL; | |
6631 | ||
9a774c78 AO |
6632 | len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]); |
6633 | if (!len || (len % sizeof(u16))) | |
16ef1fe2 SW |
6634 | return -EINVAL; |
6635 | ||
9a774c78 AO |
6636 | params.n_counter_offsets_beacon = len / sizeof(u16); |
6637 | if (rdev->wiphy.max_num_csa_counters && | |
6638 | (params.n_counter_offsets_beacon > | |
6639 | rdev->wiphy.max_num_csa_counters)) | |
16ef1fe2 SW |
6640 | return -EINVAL; |
6641 | ||
9a774c78 AO |
6642 | params.counter_offsets_beacon = |
6643 | nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]); | |
6644 | ||
6645 | /* sanity checks - counters should fit and be the same */ | |
6646 | for (i = 0; i < params.n_counter_offsets_beacon; i++) { | |
6647 | u16 offset = params.counter_offsets_beacon[i]; | |
6648 | ||
6649 | if (offset >= params.beacon_csa.tail_len) | |
6650 | return -EINVAL; | |
6651 | ||
6652 | if (params.beacon_csa.tail[offset] != params.count) | |
6653 | return -EINVAL; | |
6654 | } | |
6655 | ||
16ef1fe2 | 6656 | if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) { |
9a774c78 AO |
6657 | len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]); |
6658 | if (!len || (len % sizeof(u16))) | |
16ef1fe2 SW |
6659 | return -EINVAL; |
6660 | ||
9a774c78 AO |
6661 | params.n_counter_offsets_presp = len / sizeof(u16); |
6662 | if (rdev->wiphy.max_num_csa_counters && | |
6663 | (params.n_counter_offsets_beacon > | |
6664 | rdev->wiphy.max_num_csa_counters)) | |
16ef1fe2 | 6665 | return -EINVAL; |
9a774c78 AO |
6666 | |
6667 | params.counter_offsets_presp = | |
6668 | nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]); | |
6669 | ||
6670 | /* sanity checks - counters should fit and be the same */ | |
6671 | for (i = 0; i < params.n_counter_offsets_presp; i++) { | |
6672 | u16 offset = params.counter_offsets_presp[i]; | |
6673 | ||
6674 | if (offset >= params.beacon_csa.probe_resp_len) | |
6675 | return -EINVAL; | |
6676 | ||
6677 | if (params.beacon_csa.probe_resp[offset] != | |
6678 | params.count) | |
6679 | return -EINVAL; | |
6680 | } | |
16ef1fe2 SW |
6681 | } |
6682 | ||
ee4bc9e7 | 6683 | skip_beacons: |
16ef1fe2 SW |
6684 | err = nl80211_parse_chandef(rdev, info, ¶ms.chandef); |
6685 | if (err) | |
6686 | return err; | |
6687 | ||
923b352f AN |
6688 | if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef, |
6689 | wdev->iftype)) | |
16ef1fe2 SW |
6690 | return -EINVAL; |
6691 | ||
2beb6dab LC |
6692 | err = cfg80211_chandef_dfs_required(wdev->wiphy, |
6693 | ¶ms.chandef, | |
6694 | wdev->iftype); | |
6695 | if (err < 0) | |
6696 | return err; | |
6697 | ||
dcc6c2f5 | 6698 | if (err > 0) |
2beb6dab | 6699 | params.radar_required = true; |
16ef1fe2 | 6700 | |
16ef1fe2 SW |
6701 | if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX]) |
6702 | params.block_tx = true; | |
6703 | ||
c56589ed SW |
6704 | wdev_lock(wdev); |
6705 | err = rdev_channel_switch(rdev, dev, ¶ms); | |
6706 | wdev_unlock(wdev); | |
6707 | ||
6708 | return err; | |
16ef1fe2 SW |
6709 | } |
6710 | ||
9720bb3a JB |
6711 | static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, |
6712 | u32 seq, int flags, | |
2a519311 | 6713 | struct cfg80211_registered_device *rdev, |
48ab905d JB |
6714 | struct wireless_dev *wdev, |
6715 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 6716 | { |
48ab905d | 6717 | struct cfg80211_bss *res = &intbss->pub; |
9caf0364 | 6718 | const struct cfg80211_bss_ies *ies; |
2a519311 JB |
6719 | void *hdr; |
6720 | struct nlattr *bss; | |
48ab905d JB |
6721 | |
6722 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 | 6723 | |
15e47304 | 6724 | hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, |
2a519311 JB |
6725 | NL80211_CMD_NEW_SCAN_RESULTS); |
6726 | if (!hdr) | |
6727 | return -1; | |
6728 | ||
9720bb3a JB |
6729 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); |
6730 | ||
97990a06 JB |
6731 | if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation)) |
6732 | goto nla_put_failure; | |
6733 | if (wdev->netdev && | |
9360ffd1 DM |
6734 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex)) |
6735 | goto nla_put_failure; | |
97990a06 JB |
6736 | if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) |
6737 | goto nla_put_failure; | |
2a519311 JB |
6738 | |
6739 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
6740 | if (!bss) | |
6741 | goto nla_put_failure; | |
9360ffd1 | 6742 | if ((!is_zero_ether_addr(res->bssid) && |
9caf0364 | 6743 | nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid))) |
9360ffd1 | 6744 | goto nla_put_failure; |
9caf0364 JB |
6745 | |
6746 | rcu_read_lock(); | |
0e227084 JB |
6747 | /* indicate whether we have probe response data or not */ |
6748 | if (rcu_access_pointer(res->proberesp_ies) && | |
6749 | nla_put_flag(msg, NL80211_BSS_PRESP_DATA)) | |
6750 | goto fail_unlock_rcu; | |
6751 | ||
6752 | /* this pointer prefers to be pointed to probe response data | |
6753 | * but is always valid | |
6754 | */ | |
9caf0364 | 6755 | ies = rcu_dereference(res->ies); |
8cef2c9d JB |
6756 | if (ies) { |
6757 | if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf)) | |
6758 | goto fail_unlock_rcu; | |
8cef2c9d JB |
6759 | if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS, |
6760 | ies->len, ies->data)) | |
6761 | goto fail_unlock_rcu; | |
9caf0364 | 6762 | } |
0e227084 JB |
6763 | |
6764 | /* and this pointer is always (unless driver didn't know) beacon data */ | |
9caf0364 | 6765 | ies = rcu_dereference(res->beacon_ies); |
0e227084 JB |
6766 | if (ies && ies->from_beacon) { |
6767 | if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf)) | |
8cef2c9d JB |
6768 | goto fail_unlock_rcu; |
6769 | if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES, | |
6770 | ies->len, ies->data)) | |
6771 | goto fail_unlock_rcu; | |
9caf0364 JB |
6772 | } |
6773 | rcu_read_unlock(); | |
6774 | ||
9360ffd1 DM |
6775 | if (res->beacon_interval && |
6776 | nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval)) | |
6777 | goto nla_put_failure; | |
6778 | if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) || | |
6779 | nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) || | |
dcd6eac1 | 6780 | nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) || |
9360ffd1 DM |
6781 | nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO, |
6782 | jiffies_to_msecs(jiffies - intbss->ts))) | |
6783 | goto nla_put_failure; | |
2a519311 | 6784 | |
6e19bc4b DS |
6785 | if (intbss->ts_boottime && |
6786 | nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME, | |
6787 | intbss->ts_boottime)) | |
6788 | goto nla_put_failure; | |
6789 | ||
77965c97 | 6790 | switch (rdev->wiphy.signal_type) { |
2a519311 | 6791 | case CFG80211_SIGNAL_TYPE_MBM: |
9360ffd1 DM |
6792 | if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal)) |
6793 | goto nla_put_failure; | |
2a519311 JB |
6794 | break; |
6795 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
9360ffd1 DM |
6796 | if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal)) |
6797 | goto nla_put_failure; | |
2a519311 JB |
6798 | break; |
6799 | default: | |
6800 | break; | |
6801 | } | |
6802 | ||
48ab905d | 6803 | switch (wdev->iftype) { |
074ac8df | 6804 | case NL80211_IFTYPE_P2P_CLIENT: |
48ab905d | 6805 | case NL80211_IFTYPE_STATION: |
9360ffd1 DM |
6806 | if (intbss == wdev->current_bss && |
6807 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
6808 | NL80211_BSS_STATUS_ASSOCIATED)) | |
6809 | goto nla_put_failure; | |
48ab905d JB |
6810 | break; |
6811 | case NL80211_IFTYPE_ADHOC: | |
9360ffd1 DM |
6812 | if (intbss == wdev->current_bss && |
6813 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
6814 | NL80211_BSS_STATUS_IBSS_JOINED)) | |
6815 | goto nla_put_failure; | |
48ab905d JB |
6816 | break; |
6817 | default: | |
6818 | break; | |
6819 | } | |
6820 | ||
2a519311 JB |
6821 | nla_nest_end(msg, bss); |
6822 | ||
053c095a JB |
6823 | genlmsg_end(msg, hdr); |
6824 | return 0; | |
2a519311 | 6825 | |
8cef2c9d JB |
6826 | fail_unlock_rcu: |
6827 | rcu_read_unlock(); | |
2a519311 JB |
6828 | nla_put_failure: |
6829 | genlmsg_cancel(msg, hdr); | |
6830 | return -EMSGSIZE; | |
6831 | } | |
6832 | ||
97990a06 | 6833 | static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb) |
2a519311 | 6834 | { |
48ab905d | 6835 | struct cfg80211_registered_device *rdev; |
2a519311 | 6836 | struct cfg80211_internal_bss *scan; |
48ab905d | 6837 | struct wireless_dev *wdev; |
97990a06 | 6838 | int start = cb->args[2], idx = 0; |
2a519311 JB |
6839 | int err; |
6840 | ||
97990a06 | 6841 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
67748893 JB |
6842 | if (err) |
6843 | return err; | |
2a519311 | 6844 | |
48ab905d JB |
6845 | wdev_lock(wdev); |
6846 | spin_lock_bh(&rdev->bss_lock); | |
6847 | cfg80211_bss_expire(rdev); | |
6848 | ||
9720bb3a JB |
6849 | cb->seq = rdev->bss_generation; |
6850 | ||
48ab905d | 6851 | list_for_each_entry(scan, &rdev->bss_list, list) { |
2a519311 JB |
6852 | if (++idx <= start) |
6853 | continue; | |
9720bb3a | 6854 | if (nl80211_send_bss(skb, cb, |
2a519311 | 6855 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
48ab905d | 6856 | rdev, wdev, scan) < 0) { |
2a519311 | 6857 | idx--; |
67748893 | 6858 | break; |
2a519311 JB |
6859 | } |
6860 | } | |
6861 | ||
48ab905d JB |
6862 | spin_unlock_bh(&rdev->bss_lock); |
6863 | wdev_unlock(wdev); | |
2a519311 | 6864 | |
97990a06 JB |
6865 | cb->args[2] = idx; |
6866 | nl80211_finish_wdev_dump(rdev); | |
2a519311 | 6867 | |
67748893 | 6868 | return skb->len; |
2a519311 JB |
6869 | } |
6870 | ||
15e47304 | 6871 | static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq, |
11f78ac3 JB |
6872 | int flags, struct net_device *dev, |
6873 | bool allow_radio_stats, | |
6874 | struct survey_info *survey) | |
61fa713c HS |
6875 | { |
6876 | void *hdr; | |
6877 | struct nlattr *infoattr; | |
6878 | ||
11f78ac3 JB |
6879 | /* skip radio stats if userspace didn't request them */ |
6880 | if (!survey->channel && !allow_radio_stats) | |
6881 | return 0; | |
6882 | ||
15e47304 | 6883 | hdr = nl80211hdr_put(msg, portid, seq, flags, |
61fa713c HS |
6884 | NL80211_CMD_NEW_SURVEY_RESULTS); |
6885 | if (!hdr) | |
6886 | return -ENOMEM; | |
6887 | ||
9360ffd1 DM |
6888 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
6889 | goto nla_put_failure; | |
61fa713c HS |
6890 | |
6891 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
6892 | if (!infoattr) | |
6893 | goto nla_put_failure; | |
6894 | ||
11f78ac3 JB |
6895 | if (survey->channel && |
6896 | nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
9360ffd1 DM |
6897 | survey->channel->center_freq)) |
6898 | goto nla_put_failure; | |
6899 | ||
6900 | if ((survey->filled & SURVEY_INFO_NOISE_DBM) && | |
6901 | nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise)) | |
6902 | goto nla_put_failure; | |
6903 | if ((survey->filled & SURVEY_INFO_IN_USE) && | |
6904 | nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE)) | |
6905 | goto nla_put_failure; | |
4ed20beb JB |
6906 | if ((survey->filled & SURVEY_INFO_TIME) && |
6907 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME, | |
6908 | survey->time)) | |
9360ffd1 | 6909 | goto nla_put_failure; |
4ed20beb JB |
6910 | if ((survey->filled & SURVEY_INFO_TIME_BUSY) && |
6911 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY, | |
6912 | survey->time_busy)) | |
9360ffd1 | 6913 | goto nla_put_failure; |
4ed20beb JB |
6914 | if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) && |
6915 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY, | |
6916 | survey->time_ext_busy)) | |
9360ffd1 | 6917 | goto nla_put_failure; |
4ed20beb JB |
6918 | if ((survey->filled & SURVEY_INFO_TIME_RX) && |
6919 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX, | |
6920 | survey->time_rx)) | |
9360ffd1 | 6921 | goto nla_put_failure; |
4ed20beb JB |
6922 | if ((survey->filled & SURVEY_INFO_TIME_TX) && |
6923 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX, | |
6924 | survey->time_tx)) | |
9360ffd1 | 6925 | goto nla_put_failure; |
052536ab JB |
6926 | if ((survey->filled & SURVEY_INFO_TIME_SCAN) && |
6927 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN, | |
6928 | survey->time_scan)) | |
6929 | goto nla_put_failure; | |
61fa713c HS |
6930 | |
6931 | nla_nest_end(msg, infoattr); | |
6932 | ||
053c095a JB |
6933 | genlmsg_end(msg, hdr); |
6934 | return 0; | |
61fa713c HS |
6935 | |
6936 | nla_put_failure: | |
6937 | genlmsg_cancel(msg, hdr); | |
6938 | return -EMSGSIZE; | |
6939 | } | |
6940 | ||
11f78ac3 | 6941 | static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb) |
61fa713c HS |
6942 | { |
6943 | struct survey_info survey; | |
1b8ec87a | 6944 | struct cfg80211_registered_device *rdev; |
97990a06 JB |
6945 | struct wireless_dev *wdev; |
6946 | int survey_idx = cb->args[2]; | |
61fa713c | 6947 | int res; |
11f78ac3 | 6948 | bool radio_stats; |
61fa713c | 6949 | |
1b8ec87a | 6950 | res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
67748893 JB |
6951 | if (res) |
6952 | return res; | |
61fa713c | 6953 | |
11f78ac3 JB |
6954 | /* prepare_wdev_dump parsed the attributes */ |
6955 | radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS]; | |
6956 | ||
97990a06 JB |
6957 | if (!wdev->netdev) { |
6958 | res = -EINVAL; | |
6959 | goto out_err; | |
6960 | } | |
6961 | ||
1b8ec87a | 6962 | if (!rdev->ops->dump_survey) { |
61fa713c HS |
6963 | res = -EOPNOTSUPP; |
6964 | goto out_err; | |
6965 | } | |
6966 | ||
6967 | while (1) { | |
1b8ec87a | 6968 | res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey); |
61fa713c HS |
6969 | if (res == -ENOENT) |
6970 | break; | |
6971 | if (res) | |
6972 | goto out_err; | |
6973 | ||
11f78ac3 JB |
6974 | /* don't send disabled channels, but do send non-channel data */ |
6975 | if (survey.channel && | |
6976 | survey.channel->flags & IEEE80211_CHAN_DISABLED) { | |
180cdc79 LR |
6977 | survey_idx++; |
6978 | continue; | |
6979 | } | |
6980 | ||
61fa713c | 6981 | if (nl80211_send_survey(skb, |
15e47304 | 6982 | NETLINK_CB(cb->skb).portid, |
61fa713c | 6983 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
11f78ac3 | 6984 | wdev->netdev, radio_stats, &survey) < 0) |
61fa713c HS |
6985 | goto out; |
6986 | survey_idx++; | |
6987 | } | |
6988 | ||
6989 | out: | |
97990a06 | 6990 | cb->args[2] = survey_idx; |
61fa713c HS |
6991 | res = skb->len; |
6992 | out_err: | |
1b8ec87a | 6993 | nl80211_finish_wdev_dump(rdev); |
61fa713c HS |
6994 | return res; |
6995 | } | |
6996 | ||
b23aa676 SO |
6997 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) |
6998 | { | |
6999 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
7000 | NL80211_WPA_VERSION_2)); | |
7001 | } | |
7002 | ||
636a5d36 JM |
7003 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
7004 | { | |
4c476991 JB |
7005 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7006 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 7007 | struct ieee80211_channel *chan; |
e39e5b5e JM |
7008 | const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL; |
7009 | int err, ssid_len, ie_len = 0, sae_data_len = 0; | |
19957bb3 | 7010 | enum nl80211_auth_type auth_type; |
fffd0934 | 7011 | struct key_parse key; |
d5cdfacb | 7012 | bool local_state_change; |
636a5d36 | 7013 | |
f4a11bb0 JB |
7014 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
7015 | return -EINVAL; | |
7016 | ||
7017 | if (!info->attrs[NL80211_ATTR_MAC]) | |
7018 | return -EINVAL; | |
7019 | ||
1778092e JM |
7020 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
7021 | return -EINVAL; | |
7022 | ||
19957bb3 JB |
7023 | if (!info->attrs[NL80211_ATTR_SSID]) |
7024 | return -EINVAL; | |
7025 | ||
7026 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
7027 | return -EINVAL; | |
7028 | ||
fffd0934 JB |
7029 | err = nl80211_parse_key(info, &key); |
7030 | if (err) | |
7031 | return err; | |
7032 | ||
7033 | if (key.idx >= 0) { | |
e31b8213 JB |
7034 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
7035 | return -EINVAL; | |
fffd0934 JB |
7036 | if (!key.p.key || !key.p.key_len) |
7037 | return -EINVAL; | |
7038 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
7039 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
7040 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
7041 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
7042 | return -EINVAL; | |
7043 | if (key.idx > 4) | |
7044 | return -EINVAL; | |
7045 | } else { | |
7046 | key.p.key_len = 0; | |
7047 | key.p.key = NULL; | |
7048 | } | |
7049 | ||
afea0b7a JB |
7050 | if (key.idx >= 0) { |
7051 | int i; | |
7052 | bool ok = false; | |
7053 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
7054 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
7055 | ok = true; | |
7056 | break; | |
7057 | } | |
7058 | } | |
4c476991 JB |
7059 | if (!ok) |
7060 | return -EINVAL; | |
afea0b7a JB |
7061 | } |
7062 | ||
4c476991 JB |
7063 | if (!rdev->ops->auth) |
7064 | return -EOPNOTSUPP; | |
636a5d36 | 7065 | |
074ac8df | 7066 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7067 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7068 | return -EOPNOTSUPP; | |
eec60b03 | 7069 | |
19957bb3 | 7070 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
664834de JM |
7071 | chan = nl80211_get_valid_chan(&rdev->wiphy, |
7072 | info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
7073 | if (!chan) | |
4c476991 | 7074 | return -EINVAL; |
636a5d36 | 7075 | |
19957bb3 JB |
7076 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
7077 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
7078 | |
7079 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
7080 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
7081 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
7082 | } |
7083 | ||
19957bb3 | 7084 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
e39e5b5e | 7085 | if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE)) |
4c476991 | 7086 | return -EINVAL; |
636a5d36 | 7087 | |
e39e5b5e JM |
7088 | if (auth_type == NL80211_AUTHTYPE_SAE && |
7089 | !info->attrs[NL80211_ATTR_SAE_DATA]) | |
7090 | return -EINVAL; | |
7091 | ||
7092 | if (info->attrs[NL80211_ATTR_SAE_DATA]) { | |
7093 | if (auth_type != NL80211_AUTHTYPE_SAE) | |
7094 | return -EINVAL; | |
7095 | sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]); | |
7096 | sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]); | |
7097 | /* need to include at least Auth Transaction and Status Code */ | |
7098 | if (sae_data_len < 4) | |
7099 | return -EINVAL; | |
7100 | } | |
7101 | ||
d5cdfacb JM |
7102 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
7103 | ||
95de817b JB |
7104 | /* |
7105 | * Since we no longer track auth state, ignore | |
7106 | * requests to only change local state. | |
7107 | */ | |
7108 | if (local_state_change) | |
7109 | return 0; | |
7110 | ||
91bf9b26 JB |
7111 | wdev_lock(dev->ieee80211_ptr); |
7112 | err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, | |
7113 | ssid, ssid_len, ie, ie_len, | |
7114 | key.p.key, key.p.key_len, key.idx, | |
7115 | sae_data, sae_data_len); | |
7116 | wdev_unlock(dev->ieee80211_ptr); | |
7117 | return err; | |
636a5d36 JM |
7118 | } |
7119 | ||
c0692b8f JB |
7120 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
7121 | struct genl_info *info, | |
3dc27d25 JB |
7122 | struct cfg80211_crypto_settings *settings, |
7123 | int cipher_limit) | |
b23aa676 | 7124 | { |
c0b2bbd8 JB |
7125 | memset(settings, 0, sizeof(*settings)); |
7126 | ||
b23aa676 SO |
7127 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
7128 | ||
c0692b8f JB |
7129 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
7130 | u16 proto; | |
7131 | proto = nla_get_u16( | |
7132 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
7133 | settings->control_port_ethertype = cpu_to_be16(proto); | |
7134 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
7135 | proto != ETH_P_PAE) | |
7136 | return -EINVAL; | |
7137 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
7138 | settings->control_port_no_encrypt = true; | |
7139 | } else | |
7140 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
7141 | ||
b23aa676 SO |
7142 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
7143 | void *data; | |
7144 | int len, i; | |
7145 | ||
7146 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
7147 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
7148 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
7149 | ||
7150 | if (len % sizeof(u32)) | |
7151 | return -EINVAL; | |
7152 | ||
3dc27d25 | 7153 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
7154 | return -EINVAL; |
7155 | ||
7156 | memcpy(settings->ciphers_pairwise, data, len); | |
7157 | ||
7158 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
38ba3c57 JM |
7159 | if (!cfg80211_supported_cipher_suite( |
7160 | &rdev->wiphy, | |
b23aa676 SO |
7161 | settings->ciphers_pairwise[i])) |
7162 | return -EINVAL; | |
7163 | } | |
7164 | ||
7165 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
7166 | settings->cipher_group = | |
7167 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
38ba3c57 JM |
7168 | if (!cfg80211_supported_cipher_suite(&rdev->wiphy, |
7169 | settings->cipher_group)) | |
b23aa676 SO |
7170 | return -EINVAL; |
7171 | } | |
7172 | ||
7173 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
7174 | settings->wpa_versions = | |
7175 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
7176 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
7177 | return -EINVAL; | |
7178 | } | |
7179 | ||
7180 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
7181 | void *data; | |
6d30240e | 7182 | int len; |
b23aa676 SO |
7183 | |
7184 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
7185 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
7186 | settings->n_akm_suites = len / sizeof(u32); | |
7187 | ||
7188 | if (len % sizeof(u32)) | |
7189 | return -EINVAL; | |
7190 | ||
1b9ca027 JM |
7191 | if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES) |
7192 | return -EINVAL; | |
7193 | ||
b23aa676 | 7194 | memcpy(settings->akm_suites, data, len); |
b23aa676 SO |
7195 | } |
7196 | ||
7197 | return 0; | |
7198 | } | |
7199 | ||
636a5d36 JM |
7200 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
7201 | { | |
4c476991 JB |
7202 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7203 | struct net_device *dev = info->user_ptr[1]; | |
f444de05 | 7204 | struct ieee80211_channel *chan; |
f62fab73 JB |
7205 | struct cfg80211_assoc_request req = {}; |
7206 | const u8 *bssid, *ssid; | |
7207 | int err, ssid_len = 0; | |
636a5d36 | 7208 | |
f4a11bb0 JB |
7209 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
7210 | return -EINVAL; | |
7211 | ||
7212 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
7213 | !info->attrs[NL80211_ATTR_SSID] || |
7214 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
7215 | return -EINVAL; |
7216 | ||
4c476991 JB |
7217 | if (!rdev->ops->assoc) |
7218 | return -EOPNOTSUPP; | |
636a5d36 | 7219 | |
074ac8df | 7220 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7221 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7222 | return -EOPNOTSUPP; | |
eec60b03 | 7223 | |
19957bb3 | 7224 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 7225 | |
664834de JM |
7226 | chan = nl80211_get_valid_chan(&rdev->wiphy, |
7227 | info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
7228 | if (!chan) | |
4c476991 | 7229 | return -EINVAL; |
636a5d36 | 7230 | |
19957bb3 JB |
7231 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
7232 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
7233 | |
7234 | if (info->attrs[NL80211_ATTR_IE]) { | |
f62fab73 JB |
7235 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
7236 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
7237 | } |
7238 | ||
dc6382ce | 7239 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 7240 | enum nl80211_mfp mfp = |
dc6382ce | 7241 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 7242 | if (mfp == NL80211_MFP_REQUIRED) |
f62fab73 | 7243 | req.use_mfp = true; |
4c476991 JB |
7244 | else if (mfp != NL80211_MFP_NO) |
7245 | return -EINVAL; | |
dc6382ce JM |
7246 | } |
7247 | ||
3e5d7649 | 7248 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
f62fab73 | 7249 | req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); |
3e5d7649 | 7250 | |
7e7c8926 | 7251 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
f62fab73 | 7252 | req.flags |= ASSOC_REQ_DISABLE_HT; |
7e7c8926 BG |
7253 | |
7254 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
f62fab73 JB |
7255 | memcpy(&req.ht_capa_mask, |
7256 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
7257 | sizeof(req.ht_capa_mask)); | |
7e7c8926 BG |
7258 | |
7259 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
f62fab73 | 7260 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
7e7c8926 | 7261 | return -EINVAL; |
f62fab73 JB |
7262 | memcpy(&req.ht_capa, |
7263 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
7264 | sizeof(req.ht_capa)); | |
7e7c8926 BG |
7265 | } |
7266 | ||
ee2aca34 | 7267 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT])) |
f62fab73 | 7268 | req.flags |= ASSOC_REQ_DISABLE_VHT; |
ee2aca34 JB |
7269 | |
7270 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) | |
f62fab73 JB |
7271 | memcpy(&req.vht_capa_mask, |
7272 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]), | |
7273 | sizeof(req.vht_capa_mask)); | |
ee2aca34 JB |
7274 | |
7275 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) { | |
f62fab73 | 7276 | if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) |
ee2aca34 | 7277 | return -EINVAL; |
f62fab73 JB |
7278 | memcpy(&req.vht_capa, |
7279 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]), | |
7280 | sizeof(req.vht_capa)); | |
ee2aca34 JB |
7281 | } |
7282 | ||
bab5ab7d AK |
7283 | if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) { |
7284 | if (!(rdev->wiphy.features & | |
7285 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) || | |
7286 | !(rdev->wiphy.features & NL80211_FEATURE_QUIET)) | |
7287 | return -EINVAL; | |
7288 | req.flags |= ASSOC_REQ_USE_RRM; | |
7289 | } | |
7290 | ||
f62fab73 | 7291 | err = nl80211_crypto_settings(rdev, info, &req.crypto, 1); |
91bf9b26 JB |
7292 | if (!err) { |
7293 | wdev_lock(dev->ieee80211_ptr); | |
f62fab73 JB |
7294 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, |
7295 | ssid, ssid_len, &req); | |
91bf9b26 JB |
7296 | wdev_unlock(dev->ieee80211_ptr); |
7297 | } | |
636a5d36 | 7298 | |
636a5d36 JM |
7299 | return err; |
7300 | } | |
7301 | ||
7302 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
7303 | { | |
4c476991 JB |
7304 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7305 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 7306 | const u8 *ie = NULL, *bssid; |
91bf9b26 | 7307 | int ie_len = 0, err; |
19957bb3 | 7308 | u16 reason_code; |
d5cdfacb | 7309 | bool local_state_change; |
636a5d36 | 7310 | |
f4a11bb0 JB |
7311 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
7312 | return -EINVAL; | |
7313 | ||
7314 | if (!info->attrs[NL80211_ATTR_MAC]) | |
7315 | return -EINVAL; | |
7316 | ||
7317 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
7318 | return -EINVAL; | |
7319 | ||
4c476991 JB |
7320 | if (!rdev->ops->deauth) |
7321 | return -EOPNOTSUPP; | |
636a5d36 | 7322 | |
074ac8df | 7323 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7324 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7325 | return -EOPNOTSUPP; | |
eec60b03 | 7326 | |
19957bb3 | 7327 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 7328 | |
19957bb3 JB |
7329 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
7330 | if (reason_code == 0) { | |
f4a11bb0 | 7331 | /* Reason Code 0 is reserved */ |
4c476991 | 7332 | return -EINVAL; |
255e737e | 7333 | } |
636a5d36 JM |
7334 | |
7335 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
7336 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
7337 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
7338 | } |
7339 | ||
d5cdfacb JM |
7340 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
7341 | ||
91bf9b26 JB |
7342 | wdev_lock(dev->ieee80211_ptr); |
7343 | err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, | |
7344 | local_state_change); | |
7345 | wdev_unlock(dev->ieee80211_ptr); | |
7346 | return err; | |
636a5d36 JM |
7347 | } |
7348 | ||
7349 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
7350 | { | |
4c476991 JB |
7351 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7352 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 7353 | const u8 *ie = NULL, *bssid; |
91bf9b26 | 7354 | int ie_len = 0, err; |
19957bb3 | 7355 | u16 reason_code; |
d5cdfacb | 7356 | bool local_state_change; |
636a5d36 | 7357 | |
f4a11bb0 JB |
7358 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
7359 | return -EINVAL; | |
7360 | ||
7361 | if (!info->attrs[NL80211_ATTR_MAC]) | |
7362 | return -EINVAL; | |
7363 | ||
7364 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
7365 | return -EINVAL; | |
7366 | ||
4c476991 JB |
7367 | if (!rdev->ops->disassoc) |
7368 | return -EOPNOTSUPP; | |
636a5d36 | 7369 | |
074ac8df | 7370 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7371 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7372 | return -EOPNOTSUPP; | |
eec60b03 | 7373 | |
19957bb3 | 7374 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 7375 | |
19957bb3 JB |
7376 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
7377 | if (reason_code == 0) { | |
f4a11bb0 | 7378 | /* Reason Code 0 is reserved */ |
4c476991 | 7379 | return -EINVAL; |
255e737e | 7380 | } |
636a5d36 JM |
7381 | |
7382 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
7383 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
7384 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
7385 | } |
7386 | ||
d5cdfacb JM |
7387 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
7388 | ||
91bf9b26 JB |
7389 | wdev_lock(dev->ieee80211_ptr); |
7390 | err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, | |
7391 | local_state_change); | |
7392 | wdev_unlock(dev->ieee80211_ptr); | |
7393 | return err; | |
636a5d36 JM |
7394 | } |
7395 | ||
dd5b4cc7 FF |
7396 | static bool |
7397 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, | |
7398 | int mcast_rate[IEEE80211_NUM_BANDS], | |
7399 | int rateval) | |
7400 | { | |
7401 | struct wiphy *wiphy = &rdev->wiphy; | |
7402 | bool found = false; | |
7403 | int band, i; | |
7404 | ||
7405 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
7406 | struct ieee80211_supported_band *sband; | |
7407 | ||
7408 | sband = wiphy->bands[band]; | |
7409 | if (!sband) | |
7410 | continue; | |
7411 | ||
7412 | for (i = 0; i < sband->n_bitrates; i++) { | |
7413 | if (sband->bitrates[i].bitrate == rateval) { | |
7414 | mcast_rate[band] = i + 1; | |
7415 | found = true; | |
7416 | break; | |
7417 | } | |
7418 | } | |
7419 | } | |
7420 | ||
7421 | return found; | |
7422 | } | |
7423 | ||
04a773ad JB |
7424 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
7425 | { | |
4c476991 JB |
7426 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7427 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad JB |
7428 | struct cfg80211_ibss_params ibss; |
7429 | struct wiphy *wiphy; | |
fffd0934 | 7430 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
7431 | int err; |
7432 | ||
8e30bc55 JB |
7433 | memset(&ibss, 0, sizeof(ibss)); |
7434 | ||
04a773ad JB |
7435 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
7436 | return -EINVAL; | |
7437 | ||
683b6d3b | 7438 | if (!info->attrs[NL80211_ATTR_SSID] || |
04a773ad JB |
7439 | !nla_len(info->attrs[NL80211_ATTR_SSID])) |
7440 | return -EINVAL; | |
7441 | ||
8e30bc55 JB |
7442 | ibss.beacon_interval = 100; |
7443 | ||
7444 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
7445 | ibss.beacon_interval = | |
7446 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
7447 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
7448 | return -EINVAL; | |
7449 | } | |
7450 | ||
4c476991 JB |
7451 | if (!rdev->ops->join_ibss) |
7452 | return -EOPNOTSUPP; | |
04a773ad | 7453 | |
4c476991 JB |
7454 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
7455 | return -EOPNOTSUPP; | |
04a773ad | 7456 | |
79c97e97 | 7457 | wiphy = &rdev->wiphy; |
04a773ad | 7458 | |
39193498 | 7459 | if (info->attrs[NL80211_ATTR_MAC]) { |
04a773ad | 7460 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
39193498 JB |
7461 | |
7462 | if (!is_valid_ether_addr(ibss.bssid)) | |
7463 | return -EINVAL; | |
7464 | } | |
04a773ad JB |
7465 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
7466 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
7467 | ||
7468 | if (info->attrs[NL80211_ATTR_IE]) { | |
7469 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
7470 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
7471 | } | |
7472 | ||
683b6d3b JB |
7473 | err = nl80211_parse_chandef(rdev, info, &ibss.chandef); |
7474 | if (err) | |
7475 | return err; | |
04a773ad | 7476 | |
174e0cd2 IP |
7477 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef, |
7478 | NL80211_IFTYPE_ADHOC)) | |
54858ee5 AS |
7479 | return -EINVAL; |
7480 | ||
2f301ab2 | 7481 | switch (ibss.chandef.width) { |
bf372645 SW |
7482 | case NL80211_CHAN_WIDTH_5: |
7483 | case NL80211_CHAN_WIDTH_10: | |
2f301ab2 SW |
7484 | case NL80211_CHAN_WIDTH_20_NOHT: |
7485 | break; | |
7486 | case NL80211_CHAN_WIDTH_20: | |
7487 | case NL80211_CHAN_WIDTH_40: | |
ffc11991 JD |
7488 | if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)) |
7489 | return -EINVAL; | |
7490 | break; | |
7491 | case NL80211_CHAN_WIDTH_80: | |
7492 | case NL80211_CHAN_WIDTH_80P80: | |
7493 | case NL80211_CHAN_WIDTH_160: | |
7494 | if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)) | |
7495 | return -EINVAL; | |
7496 | if (!wiphy_ext_feature_isset(&rdev->wiphy, | |
7497 | NL80211_EXT_FEATURE_VHT_IBSS)) | |
7498 | return -EINVAL; | |
7499 | break; | |
2f301ab2 | 7500 | default: |
c04d6150 | 7501 | return -EINVAL; |
2f301ab2 | 7502 | } |
db9c64cf | 7503 | |
04a773ad | 7504 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; |
fffd0934 JB |
7505 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
7506 | ||
fbd2c8dc TP |
7507 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
7508 | u8 *rates = | |
7509 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
7510 | int n_rates = | |
7511 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
7512 | struct ieee80211_supported_band *sband = | |
683b6d3b | 7513 | wiphy->bands[ibss.chandef.chan->band]; |
fbd2c8dc | 7514 | |
34850ab2 JB |
7515 | err = ieee80211_get_ratemask(sband, rates, n_rates, |
7516 | &ibss.basic_rates); | |
7517 | if (err) | |
7518 | return err; | |
fbd2c8dc | 7519 | } |
dd5b4cc7 | 7520 | |
803768f5 SW |
7521 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
7522 | memcpy(&ibss.ht_capa_mask, | |
7523 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
7524 | sizeof(ibss.ht_capa_mask)); | |
7525 | ||
7526 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
7527 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
7528 | return -EINVAL; | |
7529 | memcpy(&ibss.ht_capa, | |
7530 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
7531 | sizeof(ibss.ht_capa)); | |
7532 | } | |
7533 | ||
dd5b4cc7 FF |
7534 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
7535 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, | |
7536 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
7537 | return -EINVAL; | |
fbd2c8dc | 7538 | |
4c476991 | 7539 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
de7044ee SM |
7540 | bool no_ht = false; |
7541 | ||
4c476991 | 7542 | connkeys = nl80211_parse_connkeys(rdev, |
de7044ee SM |
7543 | info->attrs[NL80211_ATTR_KEYS], |
7544 | &no_ht); | |
4c476991 JB |
7545 | if (IS_ERR(connkeys)) |
7546 | return PTR_ERR(connkeys); | |
de7044ee | 7547 | |
3d9d1d66 JB |
7548 | if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) && |
7549 | no_ht) { | |
5e950a78 | 7550 | kzfree(connkeys); |
de7044ee SM |
7551 | return -EINVAL; |
7552 | } | |
4c476991 | 7553 | } |
04a773ad | 7554 | |
267335d6 AQ |
7555 | ibss.control_port = |
7556 | nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]); | |
7557 | ||
5336fa88 SW |
7558 | ibss.userspace_handles_dfs = |
7559 | nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]); | |
7560 | ||
4c476991 | 7561 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
fffd0934 | 7562 | if (err) |
b47f610b | 7563 | kzfree(connkeys); |
04a773ad JB |
7564 | return err; |
7565 | } | |
7566 | ||
7567 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
7568 | { | |
4c476991 JB |
7569 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7570 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad | 7571 | |
4c476991 JB |
7572 | if (!rdev->ops->leave_ibss) |
7573 | return -EOPNOTSUPP; | |
04a773ad | 7574 | |
4c476991 JB |
7575 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
7576 | return -EOPNOTSUPP; | |
04a773ad | 7577 | |
4c476991 | 7578 | return cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
7579 | } |
7580 | ||
f4e583c8 AQ |
7581 | static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info) |
7582 | { | |
7583 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7584 | struct net_device *dev = info->user_ptr[1]; | |
7585 | int mcast_rate[IEEE80211_NUM_BANDS]; | |
7586 | u32 nla_rate; | |
7587 | int err; | |
7588 | ||
7589 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && | |
876dc930 BVB |
7590 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
7591 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB) | |
f4e583c8 AQ |
7592 | return -EOPNOTSUPP; |
7593 | ||
7594 | if (!rdev->ops->set_mcast_rate) | |
7595 | return -EOPNOTSUPP; | |
7596 | ||
7597 | memset(mcast_rate, 0, sizeof(mcast_rate)); | |
7598 | ||
7599 | if (!info->attrs[NL80211_ATTR_MCAST_RATE]) | |
7600 | return -EINVAL; | |
7601 | ||
7602 | nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]); | |
7603 | if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate)) | |
7604 | return -EINVAL; | |
7605 | ||
a1056b1b | 7606 | err = rdev_set_mcast_rate(rdev, dev, mcast_rate); |
f4e583c8 AQ |
7607 | |
7608 | return err; | |
7609 | } | |
7610 | ||
ad7e718c JB |
7611 | static struct sk_buff * |
7612 | __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev, | |
6c09e791 AK |
7613 | struct wireless_dev *wdev, int approxlen, |
7614 | u32 portid, u32 seq, enum nl80211_commands cmd, | |
567ffc35 JB |
7615 | enum nl80211_attrs attr, |
7616 | const struct nl80211_vendor_cmd_info *info, | |
7617 | gfp_t gfp) | |
ad7e718c JB |
7618 | { |
7619 | struct sk_buff *skb; | |
7620 | void *hdr; | |
7621 | struct nlattr *data; | |
7622 | ||
7623 | skb = nlmsg_new(approxlen + 100, gfp); | |
7624 | if (!skb) | |
7625 | return NULL; | |
7626 | ||
7627 | hdr = nl80211hdr_put(skb, portid, seq, 0, cmd); | |
7628 | if (!hdr) { | |
7629 | kfree_skb(skb); | |
7630 | return NULL; | |
7631 | } | |
7632 | ||
7633 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) | |
7634 | goto nla_put_failure; | |
567ffc35 JB |
7635 | |
7636 | if (info) { | |
7637 | if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID, | |
7638 | info->vendor_id)) | |
7639 | goto nla_put_failure; | |
7640 | if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD, | |
7641 | info->subcmd)) | |
7642 | goto nla_put_failure; | |
7643 | } | |
7644 | ||
6c09e791 AK |
7645 | if (wdev) { |
7646 | if (nla_put_u64(skb, NL80211_ATTR_WDEV, | |
7647 | wdev_id(wdev))) | |
7648 | goto nla_put_failure; | |
7649 | if (wdev->netdev && | |
7650 | nla_put_u32(skb, NL80211_ATTR_IFINDEX, | |
7651 | wdev->netdev->ifindex)) | |
7652 | goto nla_put_failure; | |
7653 | } | |
7654 | ||
ad7e718c JB |
7655 | data = nla_nest_start(skb, attr); |
7656 | ||
7657 | ((void **)skb->cb)[0] = rdev; | |
7658 | ((void **)skb->cb)[1] = hdr; | |
7659 | ((void **)skb->cb)[2] = data; | |
7660 | ||
7661 | return skb; | |
7662 | ||
7663 | nla_put_failure: | |
7664 | kfree_skb(skb); | |
7665 | return NULL; | |
7666 | } | |
f4e583c8 | 7667 | |
e03ad6ea | 7668 | struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy, |
6c09e791 | 7669 | struct wireless_dev *wdev, |
e03ad6ea JB |
7670 | enum nl80211_commands cmd, |
7671 | enum nl80211_attrs attr, | |
7672 | int vendor_event_idx, | |
7673 | int approxlen, gfp_t gfp) | |
7674 | { | |
f26cbf40 | 7675 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
e03ad6ea JB |
7676 | const struct nl80211_vendor_cmd_info *info; |
7677 | ||
7678 | switch (cmd) { | |
7679 | case NL80211_CMD_TESTMODE: | |
7680 | if (WARN_ON(vendor_event_idx != -1)) | |
7681 | return NULL; | |
7682 | info = NULL; | |
7683 | break; | |
7684 | case NL80211_CMD_VENDOR: | |
7685 | if (WARN_ON(vendor_event_idx < 0 || | |
7686 | vendor_event_idx >= wiphy->n_vendor_events)) | |
7687 | return NULL; | |
7688 | info = &wiphy->vendor_events[vendor_event_idx]; | |
7689 | break; | |
7690 | default: | |
7691 | WARN_ON(1); | |
7692 | return NULL; | |
7693 | } | |
7694 | ||
6c09e791 | 7695 | return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0, |
e03ad6ea JB |
7696 | cmd, attr, info, gfp); |
7697 | } | |
7698 | EXPORT_SYMBOL(__cfg80211_alloc_event_skb); | |
7699 | ||
7700 | void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp) | |
7701 | { | |
7702 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
7703 | void *hdr = ((void **)skb->cb)[1]; | |
7704 | struct nlattr *data = ((void **)skb->cb)[2]; | |
7705 | enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE; | |
7706 | ||
bd8c78e7 JB |
7707 | /* clear CB data for netlink core to own from now on */ |
7708 | memset(skb->cb, 0, sizeof(skb->cb)); | |
7709 | ||
e03ad6ea JB |
7710 | nla_nest_end(skb, data); |
7711 | genlmsg_end(skb, hdr); | |
7712 | ||
7713 | if (data->nla_type == NL80211_ATTR_VENDOR_DATA) | |
7714 | mcgrp = NL80211_MCGRP_VENDOR; | |
7715 | ||
7716 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0, | |
7717 | mcgrp, gfp); | |
7718 | } | |
7719 | EXPORT_SYMBOL(__cfg80211_send_event_skb); | |
7720 | ||
aff89a9b | 7721 | #ifdef CONFIG_NL80211_TESTMODE |
aff89a9b JB |
7722 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) |
7723 | { | |
4c476991 | 7724 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fc73f11f DS |
7725 | struct wireless_dev *wdev = |
7726 | __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs); | |
aff89a9b JB |
7727 | int err; |
7728 | ||
fc73f11f DS |
7729 | if (!rdev->ops->testmode_cmd) |
7730 | return -EOPNOTSUPP; | |
7731 | ||
7732 | if (IS_ERR(wdev)) { | |
7733 | err = PTR_ERR(wdev); | |
7734 | if (err != -EINVAL) | |
7735 | return err; | |
7736 | wdev = NULL; | |
7737 | } else if (wdev->wiphy != &rdev->wiphy) { | |
7738 | return -EINVAL; | |
7739 | } | |
7740 | ||
aff89a9b JB |
7741 | if (!info->attrs[NL80211_ATTR_TESTDATA]) |
7742 | return -EINVAL; | |
7743 | ||
ad7e718c | 7744 | rdev->cur_cmd_info = info; |
fc73f11f | 7745 | err = rdev_testmode_cmd(rdev, wdev, |
aff89a9b JB |
7746 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), |
7747 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
ad7e718c | 7748 | rdev->cur_cmd_info = NULL; |
aff89a9b | 7749 | |
aff89a9b JB |
7750 | return err; |
7751 | } | |
7752 | ||
71063f0e WYG |
7753 | static int nl80211_testmode_dump(struct sk_buff *skb, |
7754 | struct netlink_callback *cb) | |
7755 | { | |
00918d33 | 7756 | struct cfg80211_registered_device *rdev; |
71063f0e WYG |
7757 | int err; |
7758 | long phy_idx; | |
7759 | void *data = NULL; | |
7760 | int data_len = 0; | |
7761 | ||
5fe231e8 JB |
7762 | rtnl_lock(); |
7763 | ||
71063f0e WYG |
7764 | if (cb->args[0]) { |
7765 | /* | |
7766 | * 0 is a valid index, but not valid for args[0], | |
7767 | * so we need to offset by 1. | |
7768 | */ | |
7769 | phy_idx = cb->args[0] - 1; | |
7770 | } else { | |
7771 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
7772 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
7773 | nl80211_policy); | |
7774 | if (err) | |
5fe231e8 | 7775 | goto out_err; |
00918d33 | 7776 | |
2bd7e35d JB |
7777 | rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), |
7778 | nl80211_fam.attrbuf); | |
7779 | if (IS_ERR(rdev)) { | |
5fe231e8 JB |
7780 | err = PTR_ERR(rdev); |
7781 | goto out_err; | |
00918d33 | 7782 | } |
2bd7e35d JB |
7783 | phy_idx = rdev->wiphy_idx; |
7784 | rdev = NULL; | |
2bd7e35d | 7785 | |
71063f0e WYG |
7786 | if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]) |
7787 | cb->args[1] = | |
7788 | (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]; | |
7789 | } | |
7790 | ||
7791 | if (cb->args[1]) { | |
7792 | data = nla_data((void *)cb->args[1]); | |
7793 | data_len = nla_len((void *)cb->args[1]); | |
7794 | } | |
7795 | ||
00918d33 JB |
7796 | rdev = cfg80211_rdev_by_wiphy_idx(phy_idx); |
7797 | if (!rdev) { | |
5fe231e8 JB |
7798 | err = -ENOENT; |
7799 | goto out_err; | |
71063f0e | 7800 | } |
71063f0e | 7801 | |
00918d33 | 7802 | if (!rdev->ops->testmode_dump) { |
71063f0e WYG |
7803 | err = -EOPNOTSUPP; |
7804 | goto out_err; | |
7805 | } | |
7806 | ||
7807 | while (1) { | |
15e47304 | 7808 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, |
71063f0e WYG |
7809 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
7810 | NL80211_CMD_TESTMODE); | |
7811 | struct nlattr *tmdata; | |
7812 | ||
cb35fba3 DC |
7813 | if (!hdr) |
7814 | break; | |
7815 | ||
9360ffd1 | 7816 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) { |
71063f0e WYG |
7817 | genlmsg_cancel(skb, hdr); |
7818 | break; | |
7819 | } | |
7820 | ||
7821 | tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
7822 | if (!tmdata) { | |
7823 | genlmsg_cancel(skb, hdr); | |
7824 | break; | |
7825 | } | |
e35e4d28 | 7826 | err = rdev_testmode_dump(rdev, skb, cb, data, data_len); |
71063f0e WYG |
7827 | nla_nest_end(skb, tmdata); |
7828 | ||
7829 | if (err == -ENOBUFS || err == -ENOENT) { | |
7830 | genlmsg_cancel(skb, hdr); | |
7831 | break; | |
7832 | } else if (err) { | |
7833 | genlmsg_cancel(skb, hdr); | |
7834 | goto out_err; | |
7835 | } | |
7836 | ||
7837 | genlmsg_end(skb, hdr); | |
7838 | } | |
7839 | ||
7840 | err = skb->len; | |
7841 | /* see above */ | |
7842 | cb->args[0] = phy_idx + 1; | |
7843 | out_err: | |
5fe231e8 | 7844 | rtnl_unlock(); |
71063f0e WYG |
7845 | return err; |
7846 | } | |
aff89a9b JB |
7847 | #endif |
7848 | ||
b23aa676 SO |
7849 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
7850 | { | |
4c476991 JB |
7851 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7852 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
7853 | struct cfg80211_connect_params connect; |
7854 | struct wiphy *wiphy; | |
fffd0934 | 7855 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
7856 | int err; |
7857 | ||
7858 | memset(&connect, 0, sizeof(connect)); | |
7859 | ||
7860 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
7861 | return -EINVAL; | |
7862 | ||
7863 | if (!info->attrs[NL80211_ATTR_SSID] || | |
7864 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
7865 | return -EINVAL; | |
7866 | ||
7867 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
7868 | connect.auth_type = | |
7869 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
e39e5b5e JM |
7870 | if (!nl80211_valid_auth_type(rdev, connect.auth_type, |
7871 | NL80211_CMD_CONNECT)) | |
b23aa676 SO |
7872 | return -EINVAL; |
7873 | } else | |
7874 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
7875 | ||
7876 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
7877 | ||
c0692b8f | 7878 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 7879 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
7880 | if (err) |
7881 | return err; | |
b23aa676 | 7882 | |
074ac8df | 7883 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7884 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7885 | return -EOPNOTSUPP; | |
b23aa676 | 7886 | |
79c97e97 | 7887 | wiphy = &rdev->wiphy; |
b23aa676 | 7888 | |
4486ea98 BS |
7889 | connect.bg_scan_period = -1; |
7890 | if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && | |
7891 | (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { | |
7892 | connect.bg_scan_period = | |
7893 | nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); | |
7894 | } | |
7895 | ||
b23aa676 SO |
7896 | if (info->attrs[NL80211_ATTR_MAC]) |
7897 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1df4a510 JM |
7898 | else if (info->attrs[NL80211_ATTR_MAC_HINT]) |
7899 | connect.bssid_hint = | |
7900 | nla_data(info->attrs[NL80211_ATTR_MAC_HINT]); | |
b23aa676 SO |
7901 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
7902 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
7903 | ||
7904 | if (info->attrs[NL80211_ATTR_IE]) { | |
7905 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
7906 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
7907 | } | |
7908 | ||
cee00a95 JM |
7909 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
7910 | connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); | |
7911 | if (connect.mfp != NL80211_MFP_REQUIRED && | |
7912 | connect.mfp != NL80211_MFP_NO) | |
7913 | return -EINVAL; | |
7914 | } else { | |
7915 | connect.mfp = NL80211_MFP_NO; | |
7916 | } | |
7917 | ||
b23aa676 | 7918 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
664834de JM |
7919 | connect.channel = nl80211_get_valid_chan( |
7920 | wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
7921 | if (!connect.channel) | |
1df4a510 JM |
7922 | return -EINVAL; |
7923 | } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) { | |
664834de JM |
7924 | connect.channel_hint = nl80211_get_valid_chan( |
7925 | wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]); | |
7926 | if (!connect.channel_hint) | |
4c476991 | 7927 | return -EINVAL; |
b23aa676 SO |
7928 | } |
7929 | ||
fffd0934 JB |
7930 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
7931 | connkeys = nl80211_parse_connkeys(rdev, | |
de7044ee | 7932 | info->attrs[NL80211_ATTR_KEYS], NULL); |
4c476991 JB |
7933 | if (IS_ERR(connkeys)) |
7934 | return PTR_ERR(connkeys); | |
fffd0934 JB |
7935 | } |
7936 | ||
7e7c8926 BG |
7937 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
7938 | connect.flags |= ASSOC_REQ_DISABLE_HT; | |
7939 | ||
7940 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
7941 | memcpy(&connect.ht_capa_mask, | |
7942 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
7943 | sizeof(connect.ht_capa_mask)); | |
7944 | ||
7945 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
b4e4f47e | 7946 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) { |
b47f610b | 7947 | kzfree(connkeys); |
7e7c8926 | 7948 | return -EINVAL; |
b4e4f47e | 7949 | } |
7e7c8926 BG |
7950 | memcpy(&connect.ht_capa, |
7951 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
7952 | sizeof(connect.ht_capa)); | |
7953 | } | |
7954 | ||
ee2aca34 JB |
7955 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT])) |
7956 | connect.flags |= ASSOC_REQ_DISABLE_VHT; | |
7957 | ||
7958 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) | |
7959 | memcpy(&connect.vht_capa_mask, | |
7960 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]), | |
7961 | sizeof(connect.vht_capa_mask)); | |
7962 | ||
7963 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) { | |
7964 | if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) { | |
b47f610b | 7965 | kzfree(connkeys); |
ee2aca34 JB |
7966 | return -EINVAL; |
7967 | } | |
7968 | memcpy(&connect.vht_capa, | |
7969 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]), | |
7970 | sizeof(connect.vht_capa)); | |
7971 | } | |
7972 | ||
bab5ab7d AK |
7973 | if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) { |
7974 | if (!(rdev->wiphy.features & | |
7975 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) || | |
707554b4 OO |
7976 | !(rdev->wiphy.features & NL80211_FEATURE_QUIET)) { |
7977 | kzfree(connkeys); | |
bab5ab7d | 7978 | return -EINVAL; |
707554b4 | 7979 | } |
bab5ab7d AK |
7980 | connect.flags |= ASSOC_REQ_USE_RRM; |
7981 | } | |
7982 | ||
83739b03 JB |
7983 | wdev_lock(dev->ieee80211_ptr); |
7984 | err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL); | |
7985 | wdev_unlock(dev->ieee80211_ptr); | |
fffd0934 | 7986 | if (err) |
b47f610b | 7987 | kzfree(connkeys); |
b23aa676 SO |
7988 | return err; |
7989 | } | |
7990 | ||
7991 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
7992 | { | |
4c476991 JB |
7993 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7994 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 | 7995 | u16 reason; |
83739b03 | 7996 | int ret; |
b23aa676 SO |
7997 | |
7998 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
7999 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
8000 | else | |
8001 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
8002 | ||
8003 | if (reason == 0) | |
8004 | return -EINVAL; | |
8005 | ||
074ac8df | 8006 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
8007 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
8008 | return -EOPNOTSUPP; | |
b23aa676 | 8009 | |
83739b03 JB |
8010 | wdev_lock(dev->ieee80211_ptr); |
8011 | ret = cfg80211_disconnect(rdev, dev, reason, true); | |
8012 | wdev_unlock(dev->ieee80211_ptr); | |
8013 | return ret; | |
b23aa676 SO |
8014 | } |
8015 | ||
463d0183 JB |
8016 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
8017 | { | |
4c476991 | 8018 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
463d0183 JB |
8019 | struct net *net; |
8020 | int err; | |
463d0183 | 8021 | |
4b681c82 VK |
8022 | if (info->attrs[NL80211_ATTR_PID]) { |
8023 | u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
8024 | ||
8025 | net = get_net_ns_by_pid(pid); | |
8026 | } else if (info->attrs[NL80211_ATTR_NETNS_FD]) { | |
8027 | u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]); | |
463d0183 | 8028 | |
4b681c82 VK |
8029 | net = get_net_ns_by_fd(fd); |
8030 | } else { | |
8031 | return -EINVAL; | |
8032 | } | |
463d0183 | 8033 | |
4c476991 JB |
8034 | if (IS_ERR(net)) |
8035 | return PTR_ERR(net); | |
463d0183 JB |
8036 | |
8037 | err = 0; | |
8038 | ||
8039 | /* check if anything to do */ | |
4c476991 JB |
8040 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
8041 | err = cfg80211_switch_netns(rdev, net); | |
463d0183 | 8042 | |
463d0183 | 8043 | put_net(net); |
463d0183 JB |
8044 | return err; |
8045 | } | |
8046 | ||
67fbb16b SO |
8047 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
8048 | { | |
4c476991 | 8049 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
67fbb16b SO |
8050 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
8051 | struct cfg80211_pmksa *pmksa) = NULL; | |
4c476991 | 8052 | struct net_device *dev = info->user_ptr[1]; |
67fbb16b SO |
8053 | struct cfg80211_pmksa pmksa; |
8054 | ||
8055 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
8056 | ||
8057 | if (!info->attrs[NL80211_ATTR_MAC]) | |
8058 | return -EINVAL; | |
8059 | ||
8060 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
8061 | return -EINVAL; | |
8062 | ||
67fbb16b SO |
8063 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
8064 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
8065 | ||
074ac8df | 8066 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
8067 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
8068 | return -EOPNOTSUPP; | |
67fbb16b SO |
8069 | |
8070 | switch (info->genlhdr->cmd) { | |
8071 | case NL80211_CMD_SET_PMKSA: | |
8072 | rdev_ops = rdev->ops->set_pmksa; | |
8073 | break; | |
8074 | case NL80211_CMD_DEL_PMKSA: | |
8075 | rdev_ops = rdev->ops->del_pmksa; | |
8076 | break; | |
8077 | default: | |
8078 | WARN_ON(1); | |
8079 | break; | |
8080 | } | |
8081 | ||
4c476991 JB |
8082 | if (!rdev_ops) |
8083 | return -EOPNOTSUPP; | |
67fbb16b | 8084 | |
4c476991 | 8085 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
67fbb16b SO |
8086 | } |
8087 | ||
8088 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
8089 | { | |
4c476991 JB |
8090 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8091 | struct net_device *dev = info->user_ptr[1]; | |
67fbb16b | 8092 | |
074ac8df | 8093 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
8094 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
8095 | return -EOPNOTSUPP; | |
67fbb16b | 8096 | |
4c476991 JB |
8097 | if (!rdev->ops->flush_pmksa) |
8098 | return -EOPNOTSUPP; | |
67fbb16b | 8099 | |
e35e4d28 | 8100 | return rdev_flush_pmksa(rdev, dev); |
67fbb16b SO |
8101 | } |
8102 | ||
109086ce AN |
8103 | static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) |
8104 | { | |
8105 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8106 | struct net_device *dev = info->user_ptr[1]; | |
8107 | u8 action_code, dialog_token; | |
df942e7b | 8108 | u32 peer_capability = 0; |
109086ce AN |
8109 | u16 status_code; |
8110 | u8 *peer; | |
31fa97c5 | 8111 | bool initiator; |
109086ce AN |
8112 | |
8113 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
8114 | !rdev->ops->tdls_mgmt) | |
8115 | return -EOPNOTSUPP; | |
8116 | ||
8117 | if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || | |
8118 | !info->attrs[NL80211_ATTR_STATUS_CODE] || | |
8119 | !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || | |
8120 | !info->attrs[NL80211_ATTR_IE] || | |
8121 | !info->attrs[NL80211_ATTR_MAC]) | |
8122 | return -EINVAL; | |
8123 | ||
8124 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
8125 | action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); | |
8126 | status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); | |
8127 | dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); | |
31fa97c5 | 8128 | initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]); |
df942e7b SDU |
8129 | if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]) |
8130 | peer_capability = | |
8131 | nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]); | |
109086ce | 8132 | |
e35e4d28 | 8133 | return rdev_tdls_mgmt(rdev, dev, peer, action_code, |
df942e7b | 8134 | dialog_token, status_code, peer_capability, |
31fa97c5 | 8135 | initiator, |
e35e4d28 HG |
8136 | nla_data(info->attrs[NL80211_ATTR_IE]), |
8137 | nla_len(info->attrs[NL80211_ATTR_IE])); | |
109086ce AN |
8138 | } |
8139 | ||
8140 | static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) | |
8141 | { | |
8142 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8143 | struct net_device *dev = info->user_ptr[1]; | |
8144 | enum nl80211_tdls_operation operation; | |
8145 | u8 *peer; | |
8146 | ||
8147 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
8148 | !rdev->ops->tdls_oper) | |
8149 | return -EOPNOTSUPP; | |
8150 | ||
8151 | if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || | |
8152 | !info->attrs[NL80211_ATTR_MAC]) | |
8153 | return -EINVAL; | |
8154 | ||
8155 | operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); | |
8156 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
8157 | ||
e35e4d28 | 8158 | return rdev_tdls_oper(rdev, dev, peer, operation); |
109086ce AN |
8159 | } |
8160 | ||
9588bbd5 JM |
8161 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
8162 | struct genl_info *info) | |
8163 | { | |
4c476991 | 8164 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 8165 | struct wireless_dev *wdev = info->user_ptr[1]; |
683b6d3b | 8166 | struct cfg80211_chan_def chandef; |
9588bbd5 JM |
8167 | struct sk_buff *msg; |
8168 | void *hdr; | |
8169 | u64 cookie; | |
683b6d3b | 8170 | u32 duration; |
9588bbd5 JM |
8171 | int err; |
8172 | ||
8173 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
8174 | !info->attrs[NL80211_ATTR_DURATION]) | |
8175 | return -EINVAL; | |
8176 | ||
8177 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
8178 | ||
ebf348fc JB |
8179 | if (!rdev->ops->remain_on_channel || |
8180 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) | |
8181 | return -EOPNOTSUPP; | |
8182 | ||
9588bbd5 | 8183 | /* |
ebf348fc JB |
8184 | * We should be on that channel for at least a minimum amount of |
8185 | * time (10ms) but no longer than the driver supports. | |
9588bbd5 | 8186 | */ |
ebf348fc | 8187 | if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
a293911d | 8188 | duration > rdev->wiphy.max_remain_on_channel_duration) |
9588bbd5 JM |
8189 | return -EINVAL; |
8190 | ||
683b6d3b JB |
8191 | err = nl80211_parse_chandef(rdev, info, &chandef); |
8192 | if (err) | |
8193 | return err; | |
9588bbd5 JM |
8194 | |
8195 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
8196 | if (!msg) |
8197 | return -ENOMEM; | |
9588bbd5 | 8198 | |
15e47304 | 8199 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
9588bbd5 | 8200 | NL80211_CMD_REMAIN_ON_CHANNEL); |
cb35fba3 DC |
8201 | if (!hdr) { |
8202 | err = -ENOBUFS; | |
9588bbd5 JM |
8203 | goto free_msg; |
8204 | } | |
8205 | ||
683b6d3b JB |
8206 | err = rdev_remain_on_channel(rdev, wdev, chandef.chan, |
8207 | duration, &cookie); | |
9588bbd5 JM |
8208 | |
8209 | if (err) | |
8210 | goto free_msg; | |
8211 | ||
9360ffd1 DM |
8212 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
8213 | goto nla_put_failure; | |
9588bbd5 JM |
8214 | |
8215 | genlmsg_end(msg, hdr); | |
4c476991 JB |
8216 | |
8217 | return genlmsg_reply(msg, info); | |
9588bbd5 JM |
8218 | |
8219 | nla_put_failure: | |
8220 | err = -ENOBUFS; | |
8221 | free_msg: | |
8222 | nlmsg_free(msg); | |
9588bbd5 JM |
8223 | return err; |
8224 | } | |
8225 | ||
8226 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
8227 | struct genl_info *info) | |
8228 | { | |
4c476991 | 8229 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 8230 | struct wireless_dev *wdev = info->user_ptr[1]; |
9588bbd5 | 8231 | u64 cookie; |
9588bbd5 JM |
8232 | |
8233 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
8234 | return -EINVAL; | |
8235 | ||
4c476991 JB |
8236 | if (!rdev->ops->cancel_remain_on_channel) |
8237 | return -EOPNOTSUPP; | |
9588bbd5 | 8238 | |
9588bbd5 JM |
8239 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
8240 | ||
e35e4d28 | 8241 | return rdev_cancel_remain_on_channel(rdev, wdev, cookie); |
9588bbd5 JM |
8242 | } |
8243 | ||
13ae75b1 JM |
8244 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
8245 | u8 *rates, u8 rates_len) | |
8246 | { | |
8247 | u8 i; | |
8248 | u32 mask = 0; | |
8249 | ||
8250 | for (i = 0; i < rates_len; i++) { | |
8251 | int rate = (rates[i] & 0x7f) * 5; | |
8252 | int ridx; | |
8253 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
8254 | struct ieee80211_rate *srate = | |
8255 | &sband->bitrates[ridx]; | |
8256 | if (rate == srate->bitrate) { | |
8257 | mask |= 1 << ridx; | |
8258 | break; | |
8259 | } | |
8260 | } | |
8261 | if (ridx == sband->n_bitrates) | |
8262 | return 0; /* rate not found */ | |
8263 | } | |
8264 | ||
8265 | return mask; | |
8266 | } | |
8267 | ||
24db78c0 SW |
8268 | static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, |
8269 | u8 *rates, u8 rates_len, | |
8270 | u8 mcs[IEEE80211_HT_MCS_MASK_LEN]) | |
8271 | { | |
8272 | u8 i; | |
8273 | ||
8274 | memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN); | |
8275 | ||
8276 | for (i = 0; i < rates_len; i++) { | |
8277 | int ridx, rbit; | |
8278 | ||
8279 | ridx = rates[i] / 8; | |
8280 | rbit = BIT(rates[i] % 8); | |
8281 | ||
8282 | /* check validity */ | |
910570b5 | 8283 | if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN)) |
24db78c0 SW |
8284 | return false; |
8285 | ||
8286 | /* check availability */ | |
8287 | if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) | |
8288 | mcs[ridx] |= rbit; | |
8289 | else | |
8290 | return false; | |
8291 | } | |
8292 | ||
8293 | return true; | |
8294 | } | |
8295 | ||
204e35a9 JD |
8296 | static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map) |
8297 | { | |
8298 | u16 mcs_mask = 0; | |
8299 | ||
8300 | switch (vht_mcs_map) { | |
8301 | case IEEE80211_VHT_MCS_NOT_SUPPORTED: | |
8302 | break; | |
8303 | case IEEE80211_VHT_MCS_SUPPORT_0_7: | |
8304 | mcs_mask = 0x00FF; | |
8305 | break; | |
8306 | case IEEE80211_VHT_MCS_SUPPORT_0_8: | |
8307 | mcs_mask = 0x01FF; | |
8308 | break; | |
8309 | case IEEE80211_VHT_MCS_SUPPORT_0_9: | |
8310 | mcs_mask = 0x03FF; | |
8311 | break; | |
8312 | default: | |
8313 | break; | |
8314 | } | |
8315 | ||
8316 | return mcs_mask; | |
8317 | } | |
8318 | ||
8319 | static void vht_build_mcs_mask(u16 vht_mcs_map, | |
8320 | u16 vht_mcs_mask[NL80211_VHT_NSS_MAX]) | |
8321 | { | |
8322 | u8 nss; | |
8323 | ||
8324 | for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) { | |
8325 | vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03); | |
8326 | vht_mcs_map >>= 2; | |
8327 | } | |
8328 | } | |
8329 | ||
8330 | static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband, | |
8331 | struct nl80211_txrate_vht *txrate, | |
8332 | u16 mcs[NL80211_VHT_NSS_MAX]) | |
8333 | { | |
8334 | u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map); | |
8335 | u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {}; | |
8336 | u8 i; | |
8337 | ||
8338 | if (!sband->vht_cap.vht_supported) | |
8339 | return false; | |
8340 | ||
8341 | memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX); | |
8342 | ||
8343 | /* Build vht_mcs_mask from VHT capabilities */ | |
8344 | vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask); | |
8345 | ||
8346 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) { | |
8347 | if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i]) | |
8348 | mcs[i] = txrate->mcs[i]; | |
8349 | else | |
8350 | return false; | |
8351 | } | |
8352 | ||
8353 | return true; | |
8354 | } | |
8355 | ||
b54452b0 | 8356 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
8357 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
8358 | .len = NL80211_MAX_SUPP_RATES }, | |
d1e33e65 JD |
8359 | [NL80211_TXRATE_HT] = { .type = NLA_BINARY, |
8360 | .len = NL80211_MAX_SUPP_HT_RATES }, | |
204e35a9 | 8361 | [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)}, |
0b9323f6 | 8362 | [NL80211_TXRATE_GI] = { .type = NLA_U8 }, |
13ae75b1 JM |
8363 | }; |
8364 | ||
8365 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
8366 | struct genl_info *info) | |
8367 | { | |
8368 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4c476991 | 8369 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
13ae75b1 | 8370 | struct cfg80211_bitrate_mask mask; |
4c476991 JB |
8371 | int rem, i; |
8372 | struct net_device *dev = info->user_ptr[1]; | |
13ae75b1 JM |
8373 | struct nlattr *tx_rates; |
8374 | struct ieee80211_supported_band *sband; | |
204e35a9 | 8375 | u16 vht_tx_mcs_map; |
13ae75b1 | 8376 | |
4c476991 JB |
8377 | if (!rdev->ops->set_bitrate_mask) |
8378 | return -EOPNOTSUPP; | |
13ae75b1 JM |
8379 | |
8380 | memset(&mask, 0, sizeof(mask)); | |
8381 | /* Default to all rates enabled */ | |
8382 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
8383 | sband = rdev->wiphy.bands[i]; | |
7869303b JD |
8384 | |
8385 | if (!sband) | |
8386 | continue; | |
8387 | ||
8388 | mask.control[i].legacy = (1 << sband->n_bitrates) - 1; | |
d1e33e65 | 8389 | memcpy(mask.control[i].ht_mcs, |
7869303b | 8390 | sband->ht_cap.mcs.rx_mask, |
d1e33e65 | 8391 | sizeof(mask.control[i].ht_mcs)); |
204e35a9 JD |
8392 | |
8393 | if (!sband->vht_cap.vht_supported) | |
8394 | continue; | |
8395 | ||
8396 | vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map); | |
8397 | vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs); | |
13ae75b1 JM |
8398 | } |
8399 | ||
b9243ab0 JD |
8400 | /* if no rates are given set it back to the defaults */ |
8401 | if (!info->attrs[NL80211_ATTR_TX_RATES]) | |
8402 | goto out; | |
8403 | ||
13ae75b1 JM |
8404 | /* |
8405 | * The nested attribute uses enum nl80211_band as the index. This maps | |
8406 | * directly to the enum ieee80211_band values used in cfg80211. | |
8407 | */ | |
24db78c0 | 8408 | BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); |
ae811e21 | 8409 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) { |
13ae75b1 | 8410 | enum ieee80211_band band = nla_type(tx_rates); |
ae811e21 JB |
8411 | int err; |
8412 | ||
4c476991 JB |
8413 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
8414 | return -EINVAL; | |
13ae75b1 | 8415 | sband = rdev->wiphy.bands[band]; |
4c476991 JB |
8416 | if (sband == NULL) |
8417 | return -EINVAL; | |
ae811e21 JB |
8418 | err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
8419 | nla_len(tx_rates), nl80211_txattr_policy); | |
8420 | if (err) | |
8421 | return err; | |
13ae75b1 JM |
8422 | if (tb[NL80211_TXRATE_LEGACY]) { |
8423 | mask.control[band].legacy = rateset_to_mask( | |
8424 | sband, | |
8425 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
8426 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
218d2e26 BS |
8427 | if ((mask.control[band].legacy == 0) && |
8428 | nla_len(tb[NL80211_TXRATE_LEGACY])) | |
8429 | return -EINVAL; | |
24db78c0 | 8430 | } |
d1e33e65 | 8431 | if (tb[NL80211_TXRATE_HT]) { |
24db78c0 SW |
8432 | if (!ht_rateset_to_mask( |
8433 | sband, | |
d1e33e65 JD |
8434 | nla_data(tb[NL80211_TXRATE_HT]), |
8435 | nla_len(tb[NL80211_TXRATE_HT]), | |
8436 | mask.control[band].ht_mcs)) | |
24db78c0 SW |
8437 | return -EINVAL; |
8438 | } | |
204e35a9 JD |
8439 | if (tb[NL80211_TXRATE_VHT]) { |
8440 | if (!vht_set_mcs_mask( | |
8441 | sband, | |
8442 | nla_data(tb[NL80211_TXRATE_VHT]), | |
8443 | mask.control[band].vht_mcs)) | |
8444 | return -EINVAL; | |
8445 | } | |
0b9323f6 JD |
8446 | if (tb[NL80211_TXRATE_GI]) { |
8447 | mask.control[band].gi = | |
8448 | nla_get_u8(tb[NL80211_TXRATE_GI]); | |
8449 | if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI) | |
8450 | return -EINVAL; | |
8451 | } | |
24db78c0 SW |
8452 | |
8453 | if (mask.control[band].legacy == 0) { | |
204e35a9 JD |
8454 | /* don't allow empty legacy rates if HT or VHT |
8455 | * are not even supported. | |
8456 | */ | |
8457 | if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported || | |
8458 | rdev->wiphy.bands[band]->vht_cap.vht_supported)) | |
24db78c0 SW |
8459 | return -EINVAL; |
8460 | ||
8461 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) | |
d1e33e65 | 8462 | if (mask.control[band].ht_mcs[i]) |
204e35a9 JD |
8463 | goto out; |
8464 | ||
8465 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) | |
8466 | if (mask.control[band].vht_mcs[i]) | |
8467 | goto out; | |
24db78c0 SW |
8468 | |
8469 | /* legacy and mcs rates may not be both empty */ | |
204e35a9 | 8470 | return -EINVAL; |
13ae75b1 JM |
8471 | } |
8472 | } | |
8473 | ||
b9243ab0 | 8474 | out: |
e35e4d28 | 8475 | return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); |
13ae75b1 JM |
8476 | } |
8477 | ||
2e161f78 | 8478 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 8479 | { |
4c476991 | 8480 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 8481 | struct wireless_dev *wdev = info->user_ptr[1]; |
2e161f78 | 8482 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
8483 | |
8484 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
8485 | return -EINVAL; | |
8486 | ||
2e161f78 JB |
8487 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
8488 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 | 8489 | |
71bbc994 JB |
8490 | switch (wdev->iftype) { |
8491 | case NL80211_IFTYPE_STATION: | |
8492 | case NL80211_IFTYPE_ADHOC: | |
8493 | case NL80211_IFTYPE_P2P_CLIENT: | |
8494 | case NL80211_IFTYPE_AP: | |
8495 | case NL80211_IFTYPE_AP_VLAN: | |
8496 | case NL80211_IFTYPE_MESH_POINT: | |
8497 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 8498 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
8499 | break; |
8500 | default: | |
4c476991 | 8501 | return -EOPNOTSUPP; |
71bbc994 | 8502 | } |
026331c4 JM |
8503 | |
8504 | /* not much point in registering if we can't reply */ | |
4c476991 JB |
8505 | if (!rdev->ops->mgmt_tx) |
8506 | return -EOPNOTSUPP; | |
026331c4 | 8507 | |
15e47304 | 8508 | return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type, |
026331c4 JM |
8509 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
8510 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
026331c4 JM |
8511 | } |
8512 | ||
2e161f78 | 8513 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 8514 | { |
4c476991 | 8515 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 8516 | struct wireless_dev *wdev = info->user_ptr[1]; |
683b6d3b | 8517 | struct cfg80211_chan_def chandef; |
026331c4 | 8518 | int err; |
d64d373f | 8519 | void *hdr = NULL; |
026331c4 | 8520 | u64 cookie; |
e247bd90 | 8521 | struct sk_buff *msg = NULL; |
b176e629 AO |
8522 | struct cfg80211_mgmt_tx_params params = { |
8523 | .dont_wait_for_ack = | |
8524 | info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK], | |
8525 | }; | |
026331c4 | 8526 | |
683b6d3b | 8527 | if (!info->attrs[NL80211_ATTR_FRAME]) |
026331c4 JM |
8528 | return -EINVAL; |
8529 | ||
4c476991 JB |
8530 | if (!rdev->ops->mgmt_tx) |
8531 | return -EOPNOTSUPP; | |
026331c4 | 8532 | |
71bbc994 | 8533 | switch (wdev->iftype) { |
ea141b75 AQ |
8534 | case NL80211_IFTYPE_P2P_DEVICE: |
8535 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
8536 | return -EINVAL; | |
71bbc994 JB |
8537 | case NL80211_IFTYPE_STATION: |
8538 | case NL80211_IFTYPE_ADHOC: | |
8539 | case NL80211_IFTYPE_P2P_CLIENT: | |
8540 | case NL80211_IFTYPE_AP: | |
8541 | case NL80211_IFTYPE_AP_VLAN: | |
8542 | case NL80211_IFTYPE_MESH_POINT: | |
8543 | case NL80211_IFTYPE_P2P_GO: | |
8544 | break; | |
8545 | default: | |
4c476991 | 8546 | return -EOPNOTSUPP; |
71bbc994 | 8547 | } |
026331c4 | 8548 | |
f7ca38df | 8549 | if (info->attrs[NL80211_ATTR_DURATION]) { |
7c4ef712 | 8550 | if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
f7ca38df | 8551 | return -EINVAL; |
b176e629 | 8552 | params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); |
ebf348fc JB |
8553 | |
8554 | /* | |
8555 | * We should wait on the channel for at least a minimum amount | |
8556 | * of time (10ms) but no longer than the driver supports. | |
8557 | */ | |
b176e629 AO |
8558 | if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
8559 | params.wait > rdev->wiphy.max_remain_on_channel_duration) | |
ebf348fc JB |
8560 | return -EINVAL; |
8561 | ||
f7ca38df JB |
8562 | } |
8563 | ||
b176e629 | 8564 | params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; |
f7ca38df | 8565 | |
b176e629 | 8566 | if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
7c4ef712 JB |
8567 | return -EINVAL; |
8568 | ||
b176e629 | 8569 | params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); |
e9f935e3 | 8570 | |
ea141b75 AQ |
8571 | /* get the channel if any has been specified, otherwise pass NULL to |
8572 | * the driver. The latter will use the current one | |
8573 | */ | |
8574 | chandef.chan = NULL; | |
8575 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
8576 | err = nl80211_parse_chandef(rdev, info, &chandef); | |
8577 | if (err) | |
8578 | return err; | |
8579 | } | |
8580 | ||
b176e629 | 8581 | if (!chandef.chan && params.offchan) |
ea141b75 | 8582 | return -EINVAL; |
026331c4 | 8583 | |
34d22ce2 AO |
8584 | params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]); |
8585 | params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]); | |
8586 | ||
8587 | if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) { | |
8588 | int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]); | |
8589 | int i; | |
8590 | ||
8591 | if (len % sizeof(u16)) | |
8592 | return -EINVAL; | |
8593 | ||
8594 | params.n_csa_offsets = len / sizeof(u16); | |
8595 | params.csa_offsets = | |
8596 | nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]); | |
8597 | ||
8598 | /* check that all the offsets fit the frame */ | |
8599 | for (i = 0; i < params.n_csa_offsets; i++) { | |
8600 | if (params.csa_offsets[i] >= params.len) | |
8601 | return -EINVAL; | |
8602 | } | |
8603 | } | |
8604 | ||
b176e629 | 8605 | if (!params.dont_wait_for_ack) { |
e247bd90 JB |
8606 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
8607 | if (!msg) | |
8608 | return -ENOMEM; | |
026331c4 | 8609 | |
15e47304 | 8610 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
e247bd90 | 8611 | NL80211_CMD_FRAME); |
cb35fba3 DC |
8612 | if (!hdr) { |
8613 | err = -ENOBUFS; | |
e247bd90 JB |
8614 | goto free_msg; |
8615 | } | |
026331c4 | 8616 | } |
e247bd90 | 8617 | |
b176e629 AO |
8618 | params.chan = chandef.chan; |
8619 | err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie); | |
026331c4 JM |
8620 | if (err) |
8621 | goto free_msg; | |
8622 | ||
e247bd90 | 8623 | if (msg) { |
9360ffd1 DM |
8624 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
8625 | goto nla_put_failure; | |
026331c4 | 8626 | |
e247bd90 JB |
8627 | genlmsg_end(msg, hdr); |
8628 | return genlmsg_reply(msg, info); | |
8629 | } | |
8630 | ||
8631 | return 0; | |
026331c4 JM |
8632 | |
8633 | nla_put_failure: | |
8634 | err = -ENOBUFS; | |
8635 | free_msg: | |
8636 | nlmsg_free(msg); | |
026331c4 JM |
8637 | return err; |
8638 | } | |
8639 | ||
f7ca38df JB |
8640 | static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) |
8641 | { | |
8642 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
71bbc994 | 8643 | struct wireless_dev *wdev = info->user_ptr[1]; |
f7ca38df JB |
8644 | u64 cookie; |
8645 | ||
8646 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
8647 | return -EINVAL; | |
8648 | ||
8649 | if (!rdev->ops->mgmt_tx_cancel_wait) | |
8650 | return -EOPNOTSUPP; | |
8651 | ||
71bbc994 JB |
8652 | switch (wdev->iftype) { |
8653 | case NL80211_IFTYPE_STATION: | |
8654 | case NL80211_IFTYPE_ADHOC: | |
8655 | case NL80211_IFTYPE_P2P_CLIENT: | |
8656 | case NL80211_IFTYPE_AP: | |
8657 | case NL80211_IFTYPE_AP_VLAN: | |
8658 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 8659 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
8660 | break; |
8661 | default: | |
f7ca38df | 8662 | return -EOPNOTSUPP; |
71bbc994 | 8663 | } |
f7ca38df JB |
8664 | |
8665 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
8666 | ||
e35e4d28 | 8667 | return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie); |
f7ca38df JB |
8668 | } |
8669 | ||
ffb9eb3d KV |
8670 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
8671 | { | |
4c476991 | 8672 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d | 8673 | struct wireless_dev *wdev; |
4c476991 | 8674 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
8675 | u8 ps_state; |
8676 | bool state; | |
8677 | int err; | |
8678 | ||
4c476991 JB |
8679 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
8680 | return -EINVAL; | |
ffb9eb3d KV |
8681 | |
8682 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
8683 | ||
4c476991 JB |
8684 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
8685 | return -EINVAL; | |
ffb9eb3d KV |
8686 | |
8687 | wdev = dev->ieee80211_ptr; | |
8688 | ||
4c476991 JB |
8689 | if (!rdev->ops->set_power_mgmt) |
8690 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
8691 | |
8692 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
8693 | ||
8694 | if (state == wdev->ps) | |
4c476991 | 8695 | return 0; |
ffb9eb3d | 8696 | |
e35e4d28 | 8697 | err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout); |
4c476991 JB |
8698 | if (!err) |
8699 | wdev->ps = state; | |
ffb9eb3d KV |
8700 | return err; |
8701 | } | |
8702 | ||
8703 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
8704 | { | |
4c476991 | 8705 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d KV |
8706 | enum nl80211_ps_state ps_state; |
8707 | struct wireless_dev *wdev; | |
4c476991 | 8708 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
8709 | struct sk_buff *msg; |
8710 | void *hdr; | |
8711 | int err; | |
8712 | ||
ffb9eb3d KV |
8713 | wdev = dev->ieee80211_ptr; |
8714 | ||
4c476991 JB |
8715 | if (!rdev->ops->set_power_mgmt) |
8716 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
8717 | |
8718 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
8719 | if (!msg) |
8720 | return -ENOMEM; | |
ffb9eb3d | 8721 | |
15e47304 | 8722 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
ffb9eb3d KV |
8723 | NL80211_CMD_GET_POWER_SAVE); |
8724 | if (!hdr) { | |
4c476991 | 8725 | err = -ENOBUFS; |
ffb9eb3d KV |
8726 | goto free_msg; |
8727 | } | |
8728 | ||
8729 | if (wdev->ps) | |
8730 | ps_state = NL80211_PS_ENABLED; | |
8731 | else | |
8732 | ps_state = NL80211_PS_DISABLED; | |
8733 | ||
9360ffd1 DM |
8734 | if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state)) |
8735 | goto nla_put_failure; | |
ffb9eb3d KV |
8736 | |
8737 | genlmsg_end(msg, hdr); | |
4c476991 | 8738 | return genlmsg_reply(msg, info); |
ffb9eb3d | 8739 | |
4c476991 | 8740 | nla_put_failure: |
ffb9eb3d | 8741 | err = -ENOBUFS; |
4c476991 | 8742 | free_msg: |
ffb9eb3d | 8743 | nlmsg_free(msg); |
ffb9eb3d KV |
8744 | return err; |
8745 | } | |
8746 | ||
94e860f1 JB |
8747 | static const struct nla_policy |
8748 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { | |
d6dc1a38 JO |
8749 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, |
8750 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
8751 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
84f10708 TP |
8752 | [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 }, |
8753 | [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 }, | |
8754 | [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 }, | |
d6dc1a38 JO |
8755 | }; |
8756 | ||
84f10708 | 8757 | static int nl80211_set_cqm_txe(struct genl_info *info, |
d9d8b019 | 8758 | u32 rate, u32 pkts, u32 intvl) |
84f10708 TP |
8759 | { |
8760 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
84f10708 | 8761 | struct net_device *dev = info->user_ptr[1]; |
1da5fcc8 | 8762 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
84f10708 | 8763 | |
d9d8b019 | 8764 | if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL) |
84f10708 TP |
8765 | return -EINVAL; |
8766 | ||
84f10708 TP |
8767 | if (!rdev->ops->set_cqm_txe_config) |
8768 | return -EOPNOTSUPP; | |
8769 | ||
8770 | if (wdev->iftype != NL80211_IFTYPE_STATION && | |
8771 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
8772 | return -EOPNOTSUPP; | |
8773 | ||
e35e4d28 | 8774 | return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl); |
84f10708 TP |
8775 | } |
8776 | ||
d6dc1a38 JO |
8777 | static int nl80211_set_cqm_rssi(struct genl_info *info, |
8778 | s32 threshold, u32 hysteresis) | |
8779 | { | |
4c476991 | 8780 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 8781 | struct net_device *dev = info->user_ptr[1]; |
1da5fcc8 | 8782 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
d6dc1a38 JO |
8783 | |
8784 | if (threshold > 0) | |
8785 | return -EINVAL; | |
8786 | ||
1da5fcc8 JB |
8787 | /* disabling - hysteresis should also be zero then */ |
8788 | if (threshold == 0) | |
8789 | hysteresis = 0; | |
d6dc1a38 | 8790 | |
4c476991 JB |
8791 | if (!rdev->ops->set_cqm_rssi_config) |
8792 | return -EOPNOTSUPP; | |
d6dc1a38 | 8793 | |
074ac8df | 8794 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
8795 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
8796 | return -EOPNOTSUPP; | |
d6dc1a38 | 8797 | |
e35e4d28 | 8798 | return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis); |
d6dc1a38 JO |
8799 | } |
8800 | ||
8801 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
8802 | { | |
8803 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
8804 | struct nlattr *cqm; | |
8805 | int err; | |
8806 | ||
8807 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
1da5fcc8 JB |
8808 | if (!cqm) |
8809 | return -EINVAL; | |
d6dc1a38 JO |
8810 | |
8811 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
8812 | nl80211_attr_cqm_policy); | |
8813 | if (err) | |
1da5fcc8 | 8814 | return err; |
d6dc1a38 JO |
8815 | |
8816 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
8817 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
1da5fcc8 JB |
8818 | s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); |
8819 | u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
d6dc1a38 | 8820 | |
1da5fcc8 JB |
8821 | return nl80211_set_cqm_rssi(info, threshold, hysteresis); |
8822 | } | |
8823 | ||
8824 | if (attrs[NL80211_ATTR_CQM_TXE_RATE] && | |
8825 | attrs[NL80211_ATTR_CQM_TXE_PKTS] && | |
8826 | attrs[NL80211_ATTR_CQM_TXE_INTVL]) { | |
8827 | u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]); | |
8828 | u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]); | |
8829 | u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]); | |
8830 | ||
8831 | return nl80211_set_cqm_txe(info, rate, pkts, intvl); | |
8832 | } | |
8833 | ||
8834 | return -EINVAL; | |
d6dc1a38 JO |
8835 | } |
8836 | ||
6e0bd6c3 RL |
8837 | static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info) |
8838 | { | |
8839 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8840 | struct net_device *dev = info->user_ptr[1]; | |
8841 | struct ocb_setup setup = {}; | |
8842 | int err; | |
8843 | ||
8844 | err = nl80211_parse_chandef(rdev, info, &setup.chandef); | |
8845 | if (err) | |
8846 | return err; | |
8847 | ||
8848 | return cfg80211_join_ocb(rdev, dev, &setup); | |
8849 | } | |
8850 | ||
8851 | static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info) | |
8852 | { | |
8853 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8854 | struct net_device *dev = info->user_ptr[1]; | |
8855 | ||
8856 | return cfg80211_leave_ocb(rdev, dev); | |
8857 | } | |
8858 | ||
29cbe68c JB |
8859 | static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) |
8860 | { | |
8861 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8862 | struct net_device *dev = info->user_ptr[1]; | |
8863 | struct mesh_config cfg; | |
c80d545d | 8864 | struct mesh_setup setup; |
29cbe68c JB |
8865 | int err; |
8866 | ||
8867 | /* start with default */ | |
8868 | memcpy(&cfg, &default_mesh_config, sizeof(cfg)); | |
c80d545d | 8869 | memcpy(&setup, &default_mesh_setup, sizeof(setup)); |
29cbe68c | 8870 | |
24bdd9f4 | 8871 | if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { |
29cbe68c | 8872 | /* and parse parameters if given */ |
24bdd9f4 | 8873 | err = nl80211_parse_mesh_config(info, &cfg, NULL); |
29cbe68c JB |
8874 | if (err) |
8875 | return err; | |
8876 | } | |
8877 | ||
8878 | if (!info->attrs[NL80211_ATTR_MESH_ID] || | |
8879 | !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) | |
8880 | return -EINVAL; | |
8881 | ||
c80d545d JC |
8882 | setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
8883 | setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
8884 | ||
4bb62344 CYY |
8885 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
8886 | !nl80211_parse_mcast_rate(rdev, setup.mcast_rate, | |
8887 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
8888 | return -EINVAL; | |
8889 | ||
9bdbf04d MP |
8890 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { |
8891 | setup.beacon_interval = | |
8892 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
8893 | if (setup.beacon_interval < 10 || | |
8894 | setup.beacon_interval > 10000) | |
8895 | return -EINVAL; | |
8896 | } | |
8897 | ||
8898 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
8899 | setup.dtim_period = | |
8900 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
8901 | if (setup.dtim_period < 1 || setup.dtim_period > 100) | |
8902 | return -EINVAL; | |
8903 | } | |
8904 | ||
c80d545d JC |
8905 | if (info->attrs[NL80211_ATTR_MESH_SETUP]) { |
8906 | /* parse additional setup parameters if given */ | |
8907 | err = nl80211_parse_mesh_setup(info, &setup); | |
8908 | if (err) | |
8909 | return err; | |
8910 | } | |
8911 | ||
d37bb18a TP |
8912 | if (setup.user_mpm) |
8913 | cfg.auto_open_plinks = false; | |
8914 | ||
cc1d2806 | 8915 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
683b6d3b JB |
8916 | err = nl80211_parse_chandef(rdev, info, &setup.chandef); |
8917 | if (err) | |
8918 | return err; | |
cc1d2806 JB |
8919 | } else { |
8920 | /* cfg80211_join_mesh() will sort it out */ | |
683b6d3b | 8921 | setup.chandef.chan = NULL; |
cc1d2806 JB |
8922 | } |
8923 | ||
ffb3cf30 AN |
8924 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
8925 | u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
8926 | int n_rates = | |
8927 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
8928 | struct ieee80211_supported_band *sband; | |
8929 | ||
8930 | if (!setup.chandef.chan) | |
8931 | return -EINVAL; | |
8932 | ||
8933 | sband = rdev->wiphy.bands[setup.chandef.chan->band]; | |
8934 | ||
8935 | err = ieee80211_get_ratemask(sband, rates, n_rates, | |
8936 | &setup.basic_rates); | |
8937 | if (err) | |
8938 | return err; | |
8939 | } | |
8940 | ||
c80d545d | 8941 | return cfg80211_join_mesh(rdev, dev, &setup, &cfg); |
29cbe68c JB |
8942 | } |
8943 | ||
8944 | static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) | |
8945 | { | |
8946 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8947 | struct net_device *dev = info->user_ptr[1]; | |
8948 | ||
8949 | return cfg80211_leave_mesh(rdev, dev); | |
8950 | } | |
8951 | ||
dfb89c56 | 8952 | #ifdef CONFIG_PM |
bb92d199 AK |
8953 | static int nl80211_send_wowlan_patterns(struct sk_buff *msg, |
8954 | struct cfg80211_registered_device *rdev) | |
8955 | { | |
6abb9cb9 | 8956 | struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config; |
bb92d199 AK |
8957 | struct nlattr *nl_pats, *nl_pat; |
8958 | int i, pat_len; | |
8959 | ||
6abb9cb9 | 8960 | if (!wowlan->n_patterns) |
bb92d199 AK |
8961 | return 0; |
8962 | ||
8963 | nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN); | |
8964 | if (!nl_pats) | |
8965 | return -ENOBUFS; | |
8966 | ||
6abb9cb9 | 8967 | for (i = 0; i < wowlan->n_patterns; i++) { |
bb92d199 AK |
8968 | nl_pat = nla_nest_start(msg, i + 1); |
8969 | if (!nl_pat) | |
8970 | return -ENOBUFS; | |
6abb9cb9 | 8971 | pat_len = wowlan->patterns[i].pattern_len; |
50ac6607 | 8972 | if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8), |
6abb9cb9 | 8973 | wowlan->patterns[i].mask) || |
50ac6607 AK |
8974 | nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len, |
8975 | wowlan->patterns[i].pattern) || | |
8976 | nla_put_u32(msg, NL80211_PKTPAT_OFFSET, | |
6abb9cb9 | 8977 | wowlan->patterns[i].pkt_offset)) |
bb92d199 AK |
8978 | return -ENOBUFS; |
8979 | nla_nest_end(msg, nl_pat); | |
8980 | } | |
8981 | nla_nest_end(msg, nl_pats); | |
8982 | ||
8983 | return 0; | |
8984 | } | |
8985 | ||
2a0e047e JB |
8986 | static int nl80211_send_wowlan_tcp(struct sk_buff *msg, |
8987 | struct cfg80211_wowlan_tcp *tcp) | |
8988 | { | |
8989 | struct nlattr *nl_tcp; | |
8990 | ||
8991 | if (!tcp) | |
8992 | return 0; | |
8993 | ||
8994 | nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); | |
8995 | if (!nl_tcp) | |
8996 | return -ENOBUFS; | |
8997 | ||
930345ea JB |
8998 | if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) || |
8999 | nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) || | |
2a0e047e JB |
9000 | nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) || |
9001 | nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) || | |
9002 | nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) || | |
9003 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
9004 | tcp->payload_len, tcp->payload) || | |
9005 | nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, | |
9006 | tcp->data_interval) || | |
9007 | nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, | |
9008 | tcp->wake_len, tcp->wake_data) || | |
9009 | nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK, | |
9010 | DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask)) | |
9011 | return -ENOBUFS; | |
9012 | ||
9013 | if (tcp->payload_seq.len && | |
9014 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ, | |
9015 | sizeof(tcp->payload_seq), &tcp->payload_seq)) | |
9016 | return -ENOBUFS; | |
9017 | ||
9018 | if (tcp->payload_tok.len && | |
9019 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, | |
9020 | sizeof(tcp->payload_tok) + tcp->tokens_size, | |
9021 | &tcp->payload_tok)) | |
9022 | return -ENOBUFS; | |
9023 | ||
e248ad30 JB |
9024 | nla_nest_end(msg, nl_tcp); |
9025 | ||
2a0e047e JB |
9026 | return 0; |
9027 | } | |
9028 | ||
75453ccb LC |
9029 | static int nl80211_send_wowlan_nd(struct sk_buff *msg, |
9030 | struct cfg80211_sched_scan_request *req) | |
9031 | { | |
3b06d277 | 9032 | struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan; |
75453ccb LC |
9033 | int i; |
9034 | ||
9035 | if (!req) | |
9036 | return 0; | |
9037 | ||
9038 | nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT); | |
9039 | if (!nd) | |
9040 | return -ENOBUFS; | |
9041 | ||
3b06d277 AS |
9042 | if (req->n_scan_plans == 1 && |
9043 | nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, | |
9044 | req->scan_plans[0].interval * 1000)) | |
75453ccb LC |
9045 | return -ENOBUFS; |
9046 | ||
21fea567 LC |
9047 | if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay)) |
9048 | return -ENOBUFS; | |
9049 | ||
75453ccb LC |
9050 | freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); |
9051 | if (!freqs) | |
9052 | return -ENOBUFS; | |
9053 | ||
9054 | for (i = 0; i < req->n_channels; i++) | |
9055 | nla_put_u32(msg, i, req->channels[i]->center_freq); | |
9056 | ||
9057 | nla_nest_end(msg, freqs); | |
9058 | ||
9059 | if (req->n_match_sets) { | |
9060 | matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); | |
9061 | for (i = 0; i < req->n_match_sets; i++) { | |
9062 | match = nla_nest_start(msg, i); | |
9063 | nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID, | |
9064 | req->match_sets[i].ssid.ssid_len, | |
9065 | req->match_sets[i].ssid.ssid); | |
9066 | nla_nest_end(msg, match); | |
9067 | } | |
9068 | nla_nest_end(msg, matches); | |
9069 | } | |
9070 | ||
3b06d277 AS |
9071 | scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS); |
9072 | if (!scan_plans) | |
9073 | return -ENOBUFS; | |
9074 | ||
9075 | for (i = 0; i < req->n_scan_plans; i++) { | |
9076 | scan_plan = nla_nest_start(msg, i + 1); | |
9077 | if (!scan_plan || | |
9078 | nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL, | |
9079 | req->scan_plans[i].interval) || | |
9080 | (req->scan_plans[i].iterations && | |
9081 | nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS, | |
9082 | req->scan_plans[i].iterations))) | |
9083 | return -ENOBUFS; | |
9084 | nla_nest_end(msg, scan_plan); | |
9085 | } | |
9086 | nla_nest_end(msg, scan_plans); | |
9087 | ||
75453ccb LC |
9088 | nla_nest_end(msg, nd); |
9089 | ||
9090 | return 0; | |
9091 | } | |
9092 | ||
ff1b6e69 JB |
9093 | static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) |
9094 | { | |
9095 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9096 | struct sk_buff *msg; | |
9097 | void *hdr; | |
2a0e047e | 9098 | u32 size = NLMSG_DEFAULT_SIZE; |
ff1b6e69 | 9099 | |
964dc9e2 | 9100 | if (!rdev->wiphy.wowlan) |
ff1b6e69 JB |
9101 | return -EOPNOTSUPP; |
9102 | ||
6abb9cb9 | 9103 | if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) { |
2a0e047e | 9104 | /* adjust size to have room for all the data */ |
6abb9cb9 JB |
9105 | size += rdev->wiphy.wowlan_config->tcp->tokens_size + |
9106 | rdev->wiphy.wowlan_config->tcp->payload_len + | |
9107 | rdev->wiphy.wowlan_config->tcp->wake_len + | |
9108 | rdev->wiphy.wowlan_config->tcp->wake_len / 8; | |
2a0e047e JB |
9109 | } |
9110 | ||
9111 | msg = nlmsg_new(size, GFP_KERNEL); | |
ff1b6e69 JB |
9112 | if (!msg) |
9113 | return -ENOMEM; | |
9114 | ||
15e47304 | 9115 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
ff1b6e69 JB |
9116 | NL80211_CMD_GET_WOWLAN); |
9117 | if (!hdr) | |
9118 | goto nla_put_failure; | |
9119 | ||
6abb9cb9 | 9120 | if (rdev->wiphy.wowlan_config) { |
ff1b6e69 JB |
9121 | struct nlattr *nl_wowlan; |
9122 | ||
9123 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
9124 | if (!nl_wowlan) | |
9125 | goto nla_put_failure; | |
9126 | ||
6abb9cb9 | 9127 | if ((rdev->wiphy.wowlan_config->any && |
9360ffd1 | 9128 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || |
6abb9cb9 | 9129 | (rdev->wiphy.wowlan_config->disconnect && |
9360ffd1 | 9130 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || |
6abb9cb9 | 9131 | (rdev->wiphy.wowlan_config->magic_pkt && |
9360ffd1 | 9132 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || |
6abb9cb9 | 9133 | (rdev->wiphy.wowlan_config->gtk_rekey_failure && |
9360ffd1 | 9134 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || |
6abb9cb9 | 9135 | (rdev->wiphy.wowlan_config->eap_identity_req && |
9360ffd1 | 9136 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || |
6abb9cb9 | 9137 | (rdev->wiphy.wowlan_config->four_way_handshake && |
9360ffd1 | 9138 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || |
6abb9cb9 | 9139 | (rdev->wiphy.wowlan_config->rfkill_release && |
9360ffd1 DM |
9140 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) |
9141 | goto nla_put_failure; | |
2a0e047e | 9142 | |
bb92d199 AK |
9143 | if (nl80211_send_wowlan_patterns(msg, rdev)) |
9144 | goto nla_put_failure; | |
2a0e047e | 9145 | |
6abb9cb9 JB |
9146 | if (nl80211_send_wowlan_tcp(msg, |
9147 | rdev->wiphy.wowlan_config->tcp)) | |
2a0e047e | 9148 | goto nla_put_failure; |
75453ccb LC |
9149 | |
9150 | if (nl80211_send_wowlan_nd( | |
9151 | msg, | |
9152 | rdev->wiphy.wowlan_config->nd_config)) | |
9153 | goto nla_put_failure; | |
2a0e047e | 9154 | |
ff1b6e69 JB |
9155 | nla_nest_end(msg, nl_wowlan); |
9156 | } | |
9157 | ||
9158 | genlmsg_end(msg, hdr); | |
9159 | return genlmsg_reply(msg, info); | |
9160 | ||
9161 | nla_put_failure: | |
9162 | nlmsg_free(msg); | |
9163 | return -ENOBUFS; | |
9164 | } | |
9165 | ||
2a0e047e JB |
9166 | static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev, |
9167 | struct nlattr *attr, | |
9168 | struct cfg80211_wowlan *trig) | |
9169 | { | |
9170 | struct nlattr *tb[NUM_NL80211_WOWLAN_TCP]; | |
9171 | struct cfg80211_wowlan_tcp *cfg; | |
9172 | struct nl80211_wowlan_tcp_data_token *tok = NULL; | |
9173 | struct nl80211_wowlan_tcp_data_seq *seq = NULL; | |
9174 | u32 size; | |
9175 | u32 data_size, wake_size, tokens_size = 0, wake_mask_size; | |
9176 | int err, port; | |
9177 | ||
964dc9e2 | 9178 | if (!rdev->wiphy.wowlan->tcp) |
2a0e047e JB |
9179 | return -EINVAL; |
9180 | ||
9181 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP, | |
9182 | nla_data(attr), nla_len(attr), | |
9183 | nl80211_wowlan_tcp_policy); | |
9184 | if (err) | |
9185 | return err; | |
9186 | ||
9187 | if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] || | |
9188 | !tb[NL80211_WOWLAN_TCP_DST_IPV4] || | |
9189 | !tb[NL80211_WOWLAN_TCP_DST_MAC] || | |
9190 | !tb[NL80211_WOWLAN_TCP_DST_PORT] || | |
9191 | !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] || | |
9192 | !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] || | |
9193 | !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] || | |
9194 | !tb[NL80211_WOWLAN_TCP_WAKE_MASK]) | |
9195 | return -EINVAL; | |
9196 | ||
9197 | data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]); | |
964dc9e2 | 9198 | if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max) |
2a0e047e JB |
9199 | return -EINVAL; |
9200 | ||
9201 | if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) > | |
964dc9e2 | 9202 | rdev->wiphy.wowlan->tcp->data_interval_max || |
723d568a | 9203 | nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0) |
2a0e047e JB |
9204 | return -EINVAL; |
9205 | ||
9206 | wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]); | |
964dc9e2 | 9207 | if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max) |
2a0e047e JB |
9208 | return -EINVAL; |
9209 | ||
9210 | wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]); | |
9211 | if (wake_mask_size != DIV_ROUND_UP(wake_size, 8)) | |
9212 | return -EINVAL; | |
9213 | ||
9214 | if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) { | |
9215 | u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); | |
9216 | ||
9217 | tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); | |
9218 | tokens_size = tokln - sizeof(*tok); | |
9219 | ||
9220 | if (!tok->len || tokens_size % tok->len) | |
9221 | return -EINVAL; | |
964dc9e2 | 9222 | if (!rdev->wiphy.wowlan->tcp->tok) |
2a0e047e | 9223 | return -EINVAL; |
964dc9e2 | 9224 | if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len) |
2a0e047e | 9225 | return -EINVAL; |
964dc9e2 | 9226 | if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len) |
2a0e047e | 9227 | return -EINVAL; |
964dc9e2 | 9228 | if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize) |
2a0e047e JB |
9229 | return -EINVAL; |
9230 | if (tok->offset + tok->len > data_size) | |
9231 | return -EINVAL; | |
9232 | } | |
9233 | ||
9234 | if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) { | |
9235 | seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]); | |
964dc9e2 | 9236 | if (!rdev->wiphy.wowlan->tcp->seq) |
2a0e047e JB |
9237 | return -EINVAL; |
9238 | if (seq->len == 0 || seq->len > 4) | |
9239 | return -EINVAL; | |
9240 | if (seq->len + seq->offset > data_size) | |
9241 | return -EINVAL; | |
9242 | } | |
9243 | ||
9244 | size = sizeof(*cfg); | |
9245 | size += data_size; | |
9246 | size += wake_size + wake_mask_size; | |
9247 | size += tokens_size; | |
9248 | ||
9249 | cfg = kzalloc(size, GFP_KERNEL); | |
9250 | if (!cfg) | |
9251 | return -ENOMEM; | |
67b61f6c JB |
9252 | cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]); |
9253 | cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]); | |
2a0e047e JB |
9254 | memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]), |
9255 | ETH_ALEN); | |
9256 | if (tb[NL80211_WOWLAN_TCP_SRC_PORT]) | |
9257 | port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]); | |
9258 | else | |
9259 | port = 0; | |
9260 | #ifdef CONFIG_INET | |
9261 | /* allocate a socket and port for it and use it */ | |
9262 | err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM, | |
9263 | IPPROTO_TCP, &cfg->sock, 1); | |
9264 | if (err) { | |
9265 | kfree(cfg); | |
9266 | return err; | |
9267 | } | |
9268 | if (inet_csk_get_port(cfg->sock->sk, port)) { | |
9269 | sock_release(cfg->sock); | |
9270 | kfree(cfg); | |
9271 | return -EADDRINUSE; | |
9272 | } | |
9273 | cfg->src_port = inet_sk(cfg->sock->sk)->inet_num; | |
9274 | #else | |
9275 | if (!port) { | |
9276 | kfree(cfg); | |
9277 | return -EINVAL; | |
9278 | } | |
9279 | cfg->src_port = port; | |
9280 | #endif | |
9281 | ||
9282 | cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]); | |
9283 | cfg->payload_len = data_size; | |
9284 | cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size; | |
9285 | memcpy((void *)cfg->payload, | |
9286 | nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]), | |
9287 | data_size); | |
9288 | if (seq) | |
9289 | cfg->payload_seq = *seq; | |
9290 | cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]); | |
9291 | cfg->wake_len = wake_size; | |
9292 | cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size; | |
9293 | memcpy((void *)cfg->wake_data, | |
9294 | nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]), | |
9295 | wake_size); | |
9296 | cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size + | |
9297 | data_size + wake_size; | |
9298 | memcpy((void *)cfg->wake_mask, | |
9299 | nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]), | |
9300 | wake_mask_size); | |
9301 | if (tok) { | |
9302 | cfg->tokens_size = tokens_size; | |
9303 | memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size); | |
9304 | } | |
9305 | ||
9306 | trig->tcp = cfg; | |
9307 | ||
9308 | return 0; | |
9309 | } | |
9310 | ||
8cd4d456 LC |
9311 | static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev, |
9312 | const struct wiphy_wowlan_support *wowlan, | |
9313 | struct nlattr *attr, | |
9314 | struct cfg80211_wowlan *trig) | |
9315 | { | |
9316 | struct nlattr **tb; | |
9317 | int err; | |
9318 | ||
9319 | tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL); | |
9320 | if (!tb) | |
9321 | return -ENOMEM; | |
9322 | ||
9323 | if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) { | |
9324 | err = -EOPNOTSUPP; | |
9325 | goto out; | |
9326 | } | |
9327 | ||
9328 | err = nla_parse(tb, NL80211_ATTR_MAX, | |
9329 | nla_data(attr), nla_len(attr), | |
9330 | nl80211_policy); | |
9331 | if (err) | |
9332 | goto out; | |
9333 | ||
ad2b26ab | 9334 | trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb); |
8cd4d456 LC |
9335 | err = PTR_ERR_OR_ZERO(trig->nd_config); |
9336 | if (err) | |
9337 | trig->nd_config = NULL; | |
9338 | ||
9339 | out: | |
9340 | kfree(tb); | |
9341 | return err; | |
9342 | } | |
9343 | ||
ff1b6e69 JB |
9344 | static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) |
9345 | { | |
9346 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9347 | struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; | |
ff1b6e69 | 9348 | struct cfg80211_wowlan new_triggers = {}; |
ae33bd81 | 9349 | struct cfg80211_wowlan *ntrig; |
964dc9e2 | 9350 | const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan; |
ff1b6e69 | 9351 | int err, i; |
6abb9cb9 | 9352 | bool prev_enabled = rdev->wiphy.wowlan_config; |
98fc4386 | 9353 | bool regular = false; |
ff1b6e69 | 9354 | |
964dc9e2 | 9355 | if (!wowlan) |
ff1b6e69 JB |
9356 | return -EOPNOTSUPP; |
9357 | ||
ae33bd81 JB |
9358 | if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { |
9359 | cfg80211_rdev_free_wowlan(rdev); | |
6abb9cb9 | 9360 | rdev->wiphy.wowlan_config = NULL; |
ae33bd81 JB |
9361 | goto set_wakeup; |
9362 | } | |
ff1b6e69 JB |
9363 | |
9364 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, | |
9365 | nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
9366 | nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
9367 | nl80211_wowlan_policy); | |
9368 | if (err) | |
9369 | return err; | |
9370 | ||
9371 | if (tb[NL80211_WOWLAN_TRIG_ANY]) { | |
9372 | if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) | |
9373 | return -EINVAL; | |
9374 | new_triggers.any = true; | |
9375 | } | |
9376 | ||
9377 | if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { | |
9378 | if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) | |
9379 | return -EINVAL; | |
9380 | new_triggers.disconnect = true; | |
98fc4386 | 9381 | regular = true; |
ff1b6e69 JB |
9382 | } |
9383 | ||
9384 | if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { | |
9385 | if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) | |
9386 | return -EINVAL; | |
9387 | new_triggers.magic_pkt = true; | |
98fc4386 | 9388 | regular = true; |
ff1b6e69 JB |
9389 | } |
9390 | ||
77dbbb13 JB |
9391 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) |
9392 | return -EINVAL; | |
9393 | ||
9394 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) { | |
9395 | if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)) | |
9396 | return -EINVAL; | |
9397 | new_triggers.gtk_rekey_failure = true; | |
98fc4386 | 9398 | regular = true; |
77dbbb13 JB |
9399 | } |
9400 | ||
9401 | if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) { | |
9402 | if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)) | |
9403 | return -EINVAL; | |
9404 | new_triggers.eap_identity_req = true; | |
98fc4386 | 9405 | regular = true; |
77dbbb13 JB |
9406 | } |
9407 | ||
9408 | if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) { | |
9409 | if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)) | |
9410 | return -EINVAL; | |
9411 | new_triggers.four_way_handshake = true; | |
98fc4386 | 9412 | regular = true; |
77dbbb13 JB |
9413 | } |
9414 | ||
9415 | if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) { | |
9416 | if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE)) | |
9417 | return -EINVAL; | |
9418 | new_triggers.rfkill_release = true; | |
98fc4386 | 9419 | regular = true; |
77dbbb13 JB |
9420 | } |
9421 | ||
ff1b6e69 JB |
9422 | if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { |
9423 | struct nlattr *pat; | |
9424 | int n_patterns = 0; | |
bb92d199 | 9425 | int rem, pat_len, mask_len, pkt_offset; |
50ac6607 | 9426 | struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; |
ff1b6e69 | 9427 | |
98fc4386 JB |
9428 | regular = true; |
9429 | ||
ff1b6e69 JB |
9430 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], |
9431 | rem) | |
9432 | n_patterns++; | |
9433 | if (n_patterns > wowlan->n_patterns) | |
9434 | return -EINVAL; | |
9435 | ||
9436 | new_triggers.patterns = kcalloc(n_patterns, | |
9437 | sizeof(new_triggers.patterns[0]), | |
9438 | GFP_KERNEL); | |
9439 | if (!new_triggers.patterns) | |
9440 | return -ENOMEM; | |
9441 | ||
9442 | new_triggers.n_patterns = n_patterns; | |
9443 | i = 0; | |
9444 | ||
9445 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
9446 | rem) { | |
922bd80f JB |
9447 | u8 *mask_pat; |
9448 | ||
50ac6607 AK |
9449 | nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), |
9450 | nla_len(pat), NULL); | |
ff1b6e69 | 9451 | err = -EINVAL; |
50ac6607 AK |
9452 | if (!pat_tb[NL80211_PKTPAT_MASK] || |
9453 | !pat_tb[NL80211_PKTPAT_PATTERN]) | |
ff1b6e69 | 9454 | goto error; |
50ac6607 | 9455 | pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]); |
ff1b6e69 | 9456 | mask_len = DIV_ROUND_UP(pat_len, 8); |
50ac6607 | 9457 | if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len) |
ff1b6e69 JB |
9458 | goto error; |
9459 | if (pat_len > wowlan->pattern_max_len || | |
9460 | pat_len < wowlan->pattern_min_len) | |
9461 | goto error; | |
9462 | ||
50ac6607 | 9463 | if (!pat_tb[NL80211_PKTPAT_OFFSET]) |
bb92d199 AK |
9464 | pkt_offset = 0; |
9465 | else | |
9466 | pkt_offset = nla_get_u32( | |
50ac6607 | 9467 | pat_tb[NL80211_PKTPAT_OFFSET]); |
bb92d199 AK |
9468 | if (pkt_offset > wowlan->max_pkt_offset) |
9469 | goto error; | |
9470 | new_triggers.patterns[i].pkt_offset = pkt_offset; | |
9471 | ||
922bd80f JB |
9472 | mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL); |
9473 | if (!mask_pat) { | |
ff1b6e69 JB |
9474 | err = -ENOMEM; |
9475 | goto error; | |
9476 | } | |
922bd80f JB |
9477 | new_triggers.patterns[i].mask = mask_pat; |
9478 | memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]), | |
ff1b6e69 | 9479 | mask_len); |
922bd80f JB |
9480 | mask_pat += mask_len; |
9481 | new_triggers.patterns[i].pattern = mask_pat; | |
ff1b6e69 | 9482 | new_triggers.patterns[i].pattern_len = pat_len; |
922bd80f | 9483 | memcpy(mask_pat, |
50ac6607 | 9484 | nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), |
ff1b6e69 JB |
9485 | pat_len); |
9486 | i++; | |
9487 | } | |
9488 | } | |
9489 | ||
2a0e047e | 9490 | if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) { |
98fc4386 | 9491 | regular = true; |
2a0e047e JB |
9492 | err = nl80211_parse_wowlan_tcp( |
9493 | rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION], | |
9494 | &new_triggers); | |
9495 | if (err) | |
9496 | goto error; | |
9497 | } | |
9498 | ||
8cd4d456 | 9499 | if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) { |
98fc4386 | 9500 | regular = true; |
8cd4d456 LC |
9501 | err = nl80211_parse_wowlan_nd( |
9502 | rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT], | |
9503 | &new_triggers); | |
9504 | if (err) | |
9505 | goto error; | |
9506 | } | |
9507 | ||
98fc4386 JB |
9508 | /* The 'any' trigger means the device continues operating more or less |
9509 | * as in its normal operation mode and wakes up the host on most of the | |
9510 | * normal interrupts (like packet RX, ...) | |
9511 | * It therefore makes little sense to combine with the more constrained | |
9512 | * wakeup trigger modes. | |
9513 | */ | |
9514 | if (new_triggers.any && regular) { | |
9515 | err = -EINVAL; | |
9516 | goto error; | |
9517 | } | |
9518 | ||
ae33bd81 JB |
9519 | ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL); |
9520 | if (!ntrig) { | |
9521 | err = -ENOMEM; | |
9522 | goto error; | |
ff1b6e69 | 9523 | } |
ae33bd81 | 9524 | cfg80211_rdev_free_wowlan(rdev); |
6abb9cb9 | 9525 | rdev->wiphy.wowlan_config = ntrig; |
ff1b6e69 | 9526 | |
ae33bd81 | 9527 | set_wakeup: |
6abb9cb9 JB |
9528 | if (rdev->ops->set_wakeup && |
9529 | prev_enabled != !!rdev->wiphy.wowlan_config) | |
9530 | rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config); | |
6d52563f | 9531 | |
ff1b6e69 JB |
9532 | return 0; |
9533 | error: | |
9534 | for (i = 0; i < new_triggers.n_patterns; i++) | |
9535 | kfree(new_triggers.patterns[i].mask); | |
9536 | kfree(new_triggers.patterns); | |
2a0e047e JB |
9537 | if (new_triggers.tcp && new_triggers.tcp->sock) |
9538 | sock_release(new_triggers.tcp->sock); | |
9539 | kfree(new_triggers.tcp); | |
e5dbe070 | 9540 | kfree(new_triggers.nd_config); |
ff1b6e69 JB |
9541 | return err; |
9542 | } | |
dfb89c56 | 9543 | #endif |
ff1b6e69 | 9544 | |
be29b99a AK |
9545 | static int nl80211_send_coalesce_rules(struct sk_buff *msg, |
9546 | struct cfg80211_registered_device *rdev) | |
9547 | { | |
9548 | struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules; | |
9549 | int i, j, pat_len; | |
9550 | struct cfg80211_coalesce_rules *rule; | |
9551 | ||
9552 | if (!rdev->coalesce->n_rules) | |
9553 | return 0; | |
9554 | ||
9555 | nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE); | |
9556 | if (!nl_rules) | |
9557 | return -ENOBUFS; | |
9558 | ||
9559 | for (i = 0; i < rdev->coalesce->n_rules; i++) { | |
9560 | nl_rule = nla_nest_start(msg, i + 1); | |
9561 | if (!nl_rule) | |
9562 | return -ENOBUFS; | |
9563 | ||
9564 | rule = &rdev->coalesce->rules[i]; | |
9565 | if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY, | |
9566 | rule->delay)) | |
9567 | return -ENOBUFS; | |
9568 | ||
9569 | if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION, | |
9570 | rule->condition)) | |
9571 | return -ENOBUFS; | |
9572 | ||
9573 | nl_pats = nla_nest_start(msg, | |
9574 | NL80211_ATTR_COALESCE_RULE_PKT_PATTERN); | |
9575 | if (!nl_pats) | |
9576 | return -ENOBUFS; | |
9577 | ||
9578 | for (j = 0; j < rule->n_patterns; j++) { | |
9579 | nl_pat = nla_nest_start(msg, j + 1); | |
9580 | if (!nl_pat) | |
9581 | return -ENOBUFS; | |
9582 | pat_len = rule->patterns[j].pattern_len; | |
9583 | if (nla_put(msg, NL80211_PKTPAT_MASK, | |
9584 | DIV_ROUND_UP(pat_len, 8), | |
9585 | rule->patterns[j].mask) || | |
9586 | nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len, | |
9587 | rule->patterns[j].pattern) || | |
9588 | nla_put_u32(msg, NL80211_PKTPAT_OFFSET, | |
9589 | rule->patterns[j].pkt_offset)) | |
9590 | return -ENOBUFS; | |
9591 | nla_nest_end(msg, nl_pat); | |
9592 | } | |
9593 | nla_nest_end(msg, nl_pats); | |
9594 | nla_nest_end(msg, nl_rule); | |
9595 | } | |
9596 | nla_nest_end(msg, nl_rules); | |
9597 | ||
9598 | return 0; | |
9599 | } | |
9600 | ||
9601 | static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info) | |
9602 | { | |
9603 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9604 | struct sk_buff *msg; | |
9605 | void *hdr; | |
9606 | ||
9607 | if (!rdev->wiphy.coalesce) | |
9608 | return -EOPNOTSUPP; | |
9609 | ||
9610 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
9611 | if (!msg) | |
9612 | return -ENOMEM; | |
9613 | ||
9614 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
9615 | NL80211_CMD_GET_COALESCE); | |
9616 | if (!hdr) | |
9617 | goto nla_put_failure; | |
9618 | ||
9619 | if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev)) | |
9620 | goto nla_put_failure; | |
9621 | ||
9622 | genlmsg_end(msg, hdr); | |
9623 | return genlmsg_reply(msg, info); | |
9624 | ||
9625 | nla_put_failure: | |
9626 | nlmsg_free(msg); | |
9627 | return -ENOBUFS; | |
9628 | } | |
9629 | ||
9630 | void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev) | |
9631 | { | |
9632 | struct cfg80211_coalesce *coalesce = rdev->coalesce; | |
9633 | int i, j; | |
9634 | struct cfg80211_coalesce_rules *rule; | |
9635 | ||
9636 | if (!coalesce) | |
9637 | return; | |
9638 | ||
9639 | for (i = 0; i < coalesce->n_rules; i++) { | |
9640 | rule = &coalesce->rules[i]; | |
9641 | for (j = 0; j < rule->n_patterns; j++) | |
9642 | kfree(rule->patterns[j].mask); | |
9643 | kfree(rule->patterns); | |
9644 | } | |
9645 | kfree(coalesce->rules); | |
9646 | kfree(coalesce); | |
9647 | rdev->coalesce = NULL; | |
9648 | } | |
9649 | ||
9650 | static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev, | |
9651 | struct nlattr *rule, | |
9652 | struct cfg80211_coalesce_rules *new_rule) | |
9653 | { | |
9654 | int err, i; | |
9655 | const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce; | |
9656 | struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat; | |
9657 | int rem, pat_len, mask_len, pkt_offset, n_patterns = 0; | |
9658 | struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; | |
9659 | ||
9660 | err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule), | |
9661 | nla_len(rule), nl80211_coalesce_policy); | |
9662 | if (err) | |
9663 | return err; | |
9664 | ||
9665 | if (tb[NL80211_ATTR_COALESCE_RULE_DELAY]) | |
9666 | new_rule->delay = | |
9667 | nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]); | |
9668 | if (new_rule->delay > coalesce->max_delay) | |
9669 | return -EINVAL; | |
9670 | ||
9671 | if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION]) | |
9672 | new_rule->condition = | |
9673 | nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]); | |
9674 | if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH && | |
9675 | new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH) | |
9676 | return -EINVAL; | |
9677 | ||
9678 | if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN]) | |
9679 | return -EINVAL; | |
9680 | ||
9681 | nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], | |
9682 | rem) | |
9683 | n_patterns++; | |
9684 | if (n_patterns > coalesce->n_patterns) | |
9685 | return -EINVAL; | |
9686 | ||
9687 | new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]), | |
9688 | GFP_KERNEL); | |
9689 | if (!new_rule->patterns) | |
9690 | return -ENOMEM; | |
9691 | ||
9692 | new_rule->n_patterns = n_patterns; | |
9693 | i = 0; | |
9694 | ||
9695 | nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], | |
9696 | rem) { | |
922bd80f JB |
9697 | u8 *mask_pat; |
9698 | ||
be29b99a AK |
9699 | nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), |
9700 | nla_len(pat), NULL); | |
9701 | if (!pat_tb[NL80211_PKTPAT_MASK] || | |
9702 | !pat_tb[NL80211_PKTPAT_PATTERN]) | |
9703 | return -EINVAL; | |
9704 | pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]); | |
9705 | mask_len = DIV_ROUND_UP(pat_len, 8); | |
9706 | if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len) | |
9707 | return -EINVAL; | |
9708 | if (pat_len > coalesce->pattern_max_len || | |
9709 | pat_len < coalesce->pattern_min_len) | |
9710 | return -EINVAL; | |
9711 | ||
9712 | if (!pat_tb[NL80211_PKTPAT_OFFSET]) | |
9713 | pkt_offset = 0; | |
9714 | else | |
9715 | pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]); | |
9716 | if (pkt_offset > coalesce->max_pkt_offset) | |
9717 | return -EINVAL; | |
9718 | new_rule->patterns[i].pkt_offset = pkt_offset; | |
9719 | ||
922bd80f JB |
9720 | mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL); |
9721 | if (!mask_pat) | |
be29b99a | 9722 | return -ENOMEM; |
922bd80f JB |
9723 | |
9724 | new_rule->patterns[i].mask = mask_pat; | |
9725 | memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]), | |
9726 | mask_len); | |
9727 | ||
9728 | mask_pat += mask_len; | |
9729 | new_rule->patterns[i].pattern = mask_pat; | |
be29b99a | 9730 | new_rule->patterns[i].pattern_len = pat_len; |
922bd80f JB |
9731 | memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), |
9732 | pat_len); | |
be29b99a AK |
9733 | i++; |
9734 | } | |
9735 | ||
9736 | return 0; | |
9737 | } | |
9738 | ||
9739 | static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info) | |
9740 | { | |
9741 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9742 | const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce; | |
9743 | struct cfg80211_coalesce new_coalesce = {}; | |
9744 | struct cfg80211_coalesce *n_coalesce; | |
9745 | int err, rem_rule, n_rules = 0, i, j; | |
9746 | struct nlattr *rule; | |
9747 | struct cfg80211_coalesce_rules *tmp_rule; | |
9748 | ||
9749 | if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce) | |
9750 | return -EOPNOTSUPP; | |
9751 | ||
9752 | if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) { | |
9753 | cfg80211_rdev_free_coalesce(rdev); | |
a1056b1b | 9754 | rdev_set_coalesce(rdev, NULL); |
be29b99a AK |
9755 | return 0; |
9756 | } | |
9757 | ||
9758 | nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE], | |
9759 | rem_rule) | |
9760 | n_rules++; | |
9761 | if (n_rules > coalesce->n_rules) | |
9762 | return -EINVAL; | |
9763 | ||
9764 | new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]), | |
9765 | GFP_KERNEL); | |
9766 | if (!new_coalesce.rules) | |
9767 | return -ENOMEM; | |
9768 | ||
9769 | new_coalesce.n_rules = n_rules; | |
9770 | i = 0; | |
9771 | ||
9772 | nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE], | |
9773 | rem_rule) { | |
9774 | err = nl80211_parse_coalesce_rule(rdev, rule, | |
9775 | &new_coalesce.rules[i]); | |
9776 | if (err) | |
9777 | goto error; | |
9778 | ||
9779 | i++; | |
9780 | } | |
9781 | ||
a1056b1b | 9782 | err = rdev_set_coalesce(rdev, &new_coalesce); |
be29b99a AK |
9783 | if (err) |
9784 | goto error; | |
9785 | ||
9786 | n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL); | |
9787 | if (!n_coalesce) { | |
9788 | err = -ENOMEM; | |
9789 | goto error; | |
9790 | } | |
9791 | cfg80211_rdev_free_coalesce(rdev); | |
9792 | rdev->coalesce = n_coalesce; | |
9793 | ||
9794 | return 0; | |
9795 | error: | |
9796 | for (i = 0; i < new_coalesce.n_rules; i++) { | |
9797 | tmp_rule = &new_coalesce.rules[i]; | |
9798 | for (j = 0; j < tmp_rule->n_patterns; j++) | |
9799 | kfree(tmp_rule->patterns[j].mask); | |
9800 | kfree(tmp_rule->patterns); | |
9801 | } | |
9802 | kfree(new_coalesce.rules); | |
9803 | ||
9804 | return err; | |
9805 | } | |
9806 | ||
e5497d76 JB |
9807 | static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) |
9808 | { | |
9809 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9810 | struct net_device *dev = info->user_ptr[1]; | |
9811 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9812 | struct nlattr *tb[NUM_NL80211_REKEY_DATA]; | |
9813 | struct cfg80211_gtk_rekey_data rekey_data; | |
9814 | int err; | |
9815 | ||
9816 | if (!info->attrs[NL80211_ATTR_REKEY_DATA]) | |
9817 | return -EINVAL; | |
9818 | ||
9819 | err = nla_parse(tb, MAX_NL80211_REKEY_DATA, | |
9820 | nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
9821 | nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
9822 | nl80211_rekey_policy); | |
9823 | if (err) | |
9824 | return err; | |
9825 | ||
9826 | if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN) | |
9827 | return -ERANGE; | |
9828 | if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN) | |
9829 | return -ERANGE; | |
9830 | if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN) | |
9831 | return -ERANGE; | |
9832 | ||
78f686ca JB |
9833 | rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]); |
9834 | rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]); | |
9835 | rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]); | |
e5497d76 JB |
9836 | |
9837 | wdev_lock(wdev); | |
9838 | if (!wdev->current_bss) { | |
9839 | err = -ENOTCONN; | |
9840 | goto out; | |
9841 | } | |
9842 | ||
9843 | if (!rdev->ops->set_rekey_data) { | |
9844 | err = -EOPNOTSUPP; | |
9845 | goto out; | |
9846 | } | |
9847 | ||
e35e4d28 | 9848 | err = rdev_set_rekey_data(rdev, dev, &rekey_data); |
e5497d76 JB |
9849 | out: |
9850 | wdev_unlock(wdev); | |
9851 | return err; | |
9852 | } | |
9853 | ||
28946da7 JB |
9854 | static int nl80211_register_unexpected_frame(struct sk_buff *skb, |
9855 | struct genl_info *info) | |
9856 | { | |
9857 | struct net_device *dev = info->user_ptr[1]; | |
9858 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9859 | ||
9860 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
9861 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
9862 | return -EINVAL; | |
9863 | ||
15e47304 | 9864 | if (wdev->ap_unexpected_nlportid) |
28946da7 JB |
9865 | return -EBUSY; |
9866 | ||
15e47304 | 9867 | wdev->ap_unexpected_nlportid = info->snd_portid; |
28946da7 JB |
9868 | return 0; |
9869 | } | |
9870 | ||
7f6cf311 JB |
9871 | static int nl80211_probe_client(struct sk_buff *skb, |
9872 | struct genl_info *info) | |
9873 | { | |
9874 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9875 | struct net_device *dev = info->user_ptr[1]; | |
9876 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9877 | struct sk_buff *msg; | |
9878 | void *hdr; | |
9879 | const u8 *addr; | |
9880 | u64 cookie; | |
9881 | int err; | |
9882 | ||
9883 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
9884 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
9885 | return -EOPNOTSUPP; | |
9886 | ||
9887 | if (!info->attrs[NL80211_ATTR_MAC]) | |
9888 | return -EINVAL; | |
9889 | ||
9890 | if (!rdev->ops->probe_client) | |
9891 | return -EOPNOTSUPP; | |
9892 | ||
9893 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
9894 | if (!msg) | |
9895 | return -ENOMEM; | |
9896 | ||
15e47304 | 9897 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
7f6cf311 | 9898 | NL80211_CMD_PROBE_CLIENT); |
cb35fba3 DC |
9899 | if (!hdr) { |
9900 | err = -ENOBUFS; | |
7f6cf311 JB |
9901 | goto free_msg; |
9902 | } | |
9903 | ||
9904 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
9905 | ||
e35e4d28 | 9906 | err = rdev_probe_client(rdev, dev, addr, &cookie); |
7f6cf311 JB |
9907 | if (err) |
9908 | goto free_msg; | |
9909 | ||
9360ffd1 DM |
9910 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
9911 | goto nla_put_failure; | |
7f6cf311 JB |
9912 | |
9913 | genlmsg_end(msg, hdr); | |
9914 | ||
9915 | return genlmsg_reply(msg, info); | |
9916 | ||
9917 | nla_put_failure: | |
9918 | err = -ENOBUFS; | |
9919 | free_msg: | |
9920 | nlmsg_free(msg); | |
9921 | return err; | |
9922 | } | |
9923 | ||
5e760230 JB |
9924 | static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info) |
9925 | { | |
9926 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
37c73b5f BG |
9927 | struct cfg80211_beacon_registration *reg, *nreg; |
9928 | int rv; | |
5e760230 JB |
9929 | |
9930 | if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS)) | |
9931 | return -EOPNOTSUPP; | |
9932 | ||
37c73b5f BG |
9933 | nreg = kzalloc(sizeof(*nreg), GFP_KERNEL); |
9934 | if (!nreg) | |
9935 | return -ENOMEM; | |
9936 | ||
9937 | /* First, check if already registered. */ | |
9938 | spin_lock_bh(&rdev->beacon_registrations_lock); | |
9939 | list_for_each_entry(reg, &rdev->beacon_registrations, list) { | |
9940 | if (reg->nlportid == info->snd_portid) { | |
9941 | rv = -EALREADY; | |
9942 | goto out_err; | |
9943 | } | |
9944 | } | |
9945 | /* Add it to the list */ | |
9946 | nreg->nlportid = info->snd_portid; | |
9947 | list_add(&nreg->list, &rdev->beacon_registrations); | |
5e760230 | 9948 | |
37c73b5f | 9949 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
5e760230 JB |
9950 | |
9951 | return 0; | |
37c73b5f BG |
9952 | out_err: |
9953 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
9954 | kfree(nreg); | |
9955 | return rv; | |
5e760230 JB |
9956 | } |
9957 | ||
98104fde JB |
9958 | static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info) |
9959 | { | |
9960 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9961 | struct wireless_dev *wdev = info->user_ptr[1]; | |
9962 | int err; | |
9963 | ||
9964 | if (!rdev->ops->start_p2p_device) | |
9965 | return -EOPNOTSUPP; | |
9966 | ||
9967 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
9968 | return -EOPNOTSUPP; | |
9969 | ||
9970 | if (wdev->p2p_started) | |
9971 | return 0; | |
9972 | ||
b6a55015 LC |
9973 | if (rfkill_blocked(rdev->rfkill)) |
9974 | return -ERFKILL; | |
98104fde | 9975 | |
eeb126e9 | 9976 | err = rdev_start_p2p_device(rdev, wdev); |
98104fde JB |
9977 | if (err) |
9978 | return err; | |
9979 | ||
9980 | wdev->p2p_started = true; | |
98104fde | 9981 | rdev->opencount++; |
98104fde JB |
9982 | |
9983 | return 0; | |
9984 | } | |
9985 | ||
9986 | static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info) | |
9987 | { | |
9988 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9989 | struct wireless_dev *wdev = info->user_ptr[1]; | |
9990 | ||
9991 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
9992 | return -EOPNOTSUPP; | |
9993 | ||
9994 | if (!rdev->ops->stop_p2p_device) | |
9995 | return -EOPNOTSUPP; | |
9996 | ||
f9f47529 | 9997 | cfg80211_stop_p2p_device(rdev, wdev); |
98104fde JB |
9998 | |
9999 | return 0; | |
10000 | } | |
10001 | ||
3713b4e3 JB |
10002 | static int nl80211_get_protocol_features(struct sk_buff *skb, |
10003 | struct genl_info *info) | |
10004 | { | |
10005 | void *hdr; | |
10006 | struct sk_buff *msg; | |
10007 | ||
10008 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
10009 | if (!msg) | |
10010 | return -ENOMEM; | |
10011 | ||
10012 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
10013 | NL80211_CMD_GET_PROTOCOL_FEATURES); | |
10014 | if (!hdr) | |
10015 | goto nla_put_failure; | |
10016 | ||
10017 | if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES, | |
10018 | NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)) | |
10019 | goto nla_put_failure; | |
10020 | ||
10021 | genlmsg_end(msg, hdr); | |
10022 | return genlmsg_reply(msg, info); | |
10023 | ||
10024 | nla_put_failure: | |
10025 | kfree_skb(msg); | |
10026 | return -ENOBUFS; | |
10027 | } | |
10028 | ||
355199e0 JM |
10029 | static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info) |
10030 | { | |
10031 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10032 | struct cfg80211_update_ft_ies_params ft_params; | |
10033 | struct net_device *dev = info->user_ptr[1]; | |
10034 | ||
10035 | if (!rdev->ops->update_ft_ies) | |
10036 | return -EOPNOTSUPP; | |
10037 | ||
10038 | if (!info->attrs[NL80211_ATTR_MDID] || | |
10039 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
10040 | return -EINVAL; | |
10041 | ||
10042 | memset(&ft_params, 0, sizeof(ft_params)); | |
10043 | ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]); | |
10044 | ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
10045 | ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
10046 | ||
10047 | return rdev_update_ft_ies(rdev, dev, &ft_params); | |
10048 | } | |
10049 | ||
5de17984 AS |
10050 | static int nl80211_crit_protocol_start(struct sk_buff *skb, |
10051 | struct genl_info *info) | |
10052 | { | |
10053 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10054 | struct wireless_dev *wdev = info->user_ptr[1]; | |
10055 | enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC; | |
10056 | u16 duration; | |
10057 | int ret; | |
10058 | ||
10059 | if (!rdev->ops->crit_proto_start) | |
10060 | return -EOPNOTSUPP; | |
10061 | ||
10062 | if (WARN_ON(!rdev->ops->crit_proto_stop)) | |
10063 | return -EINVAL; | |
10064 | ||
10065 | if (rdev->crit_proto_nlportid) | |
10066 | return -EBUSY; | |
10067 | ||
10068 | /* determine protocol if provided */ | |
10069 | if (info->attrs[NL80211_ATTR_CRIT_PROT_ID]) | |
10070 | proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]); | |
10071 | ||
10072 | if (proto >= NUM_NL80211_CRIT_PROTO) | |
10073 | return -EINVAL; | |
10074 | ||
10075 | /* timeout must be provided */ | |
10076 | if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]) | |
10077 | return -EINVAL; | |
10078 | ||
10079 | duration = | |
10080 | nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]); | |
10081 | ||
10082 | if (duration > NL80211_CRIT_PROTO_MAX_DURATION) | |
10083 | return -ERANGE; | |
10084 | ||
10085 | ret = rdev_crit_proto_start(rdev, wdev, proto, duration); | |
10086 | if (!ret) | |
10087 | rdev->crit_proto_nlportid = info->snd_portid; | |
10088 | ||
10089 | return ret; | |
10090 | } | |
10091 | ||
10092 | static int nl80211_crit_protocol_stop(struct sk_buff *skb, | |
10093 | struct genl_info *info) | |
10094 | { | |
10095 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10096 | struct wireless_dev *wdev = info->user_ptr[1]; | |
10097 | ||
10098 | if (!rdev->ops->crit_proto_stop) | |
10099 | return -EOPNOTSUPP; | |
10100 | ||
10101 | if (rdev->crit_proto_nlportid) { | |
10102 | rdev->crit_proto_nlportid = 0; | |
10103 | rdev_crit_proto_stop(rdev, wdev); | |
10104 | } | |
10105 | return 0; | |
10106 | } | |
10107 | ||
ad7e718c JB |
10108 | static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info) |
10109 | { | |
10110 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10111 | struct wireless_dev *wdev = | |
10112 | __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs); | |
10113 | int i, err; | |
10114 | u32 vid, subcmd; | |
10115 | ||
10116 | if (!rdev->wiphy.vendor_commands) | |
10117 | return -EOPNOTSUPP; | |
10118 | ||
10119 | if (IS_ERR(wdev)) { | |
10120 | err = PTR_ERR(wdev); | |
10121 | if (err != -EINVAL) | |
10122 | return err; | |
10123 | wdev = NULL; | |
10124 | } else if (wdev->wiphy != &rdev->wiphy) { | |
10125 | return -EINVAL; | |
10126 | } | |
10127 | ||
10128 | if (!info->attrs[NL80211_ATTR_VENDOR_ID] || | |
10129 | !info->attrs[NL80211_ATTR_VENDOR_SUBCMD]) | |
10130 | return -EINVAL; | |
10131 | ||
10132 | vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]); | |
10133 | subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]); | |
10134 | for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) { | |
10135 | const struct wiphy_vendor_command *vcmd; | |
10136 | void *data = NULL; | |
10137 | int len = 0; | |
10138 | ||
10139 | vcmd = &rdev->wiphy.vendor_commands[i]; | |
10140 | ||
10141 | if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd) | |
10142 | continue; | |
10143 | ||
10144 | if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV | | |
10145 | WIPHY_VENDOR_CMD_NEED_NETDEV)) { | |
10146 | if (!wdev) | |
10147 | return -EINVAL; | |
10148 | if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV && | |
10149 | !wdev->netdev) | |
10150 | return -EINVAL; | |
10151 | ||
10152 | if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) { | |
10153 | if (wdev->netdev && | |
10154 | !netif_running(wdev->netdev)) | |
10155 | return -ENETDOWN; | |
10156 | if (!wdev->netdev && !wdev->p2p_started) | |
10157 | return -ENETDOWN; | |
10158 | } | |
7bdbe400 JB |
10159 | |
10160 | if (!vcmd->doit) | |
10161 | return -EOPNOTSUPP; | |
ad7e718c JB |
10162 | } else { |
10163 | wdev = NULL; | |
10164 | } | |
10165 | ||
10166 | if (info->attrs[NL80211_ATTR_VENDOR_DATA]) { | |
10167 | data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]); | |
10168 | len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]); | |
10169 | } | |
10170 | ||
10171 | rdev->cur_cmd_info = info; | |
10172 | err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev, | |
10173 | data, len); | |
10174 | rdev->cur_cmd_info = NULL; | |
10175 | return err; | |
10176 | } | |
10177 | ||
10178 | return -EOPNOTSUPP; | |
10179 | } | |
10180 | ||
7bdbe400 JB |
10181 | static int nl80211_prepare_vendor_dump(struct sk_buff *skb, |
10182 | struct netlink_callback *cb, | |
10183 | struct cfg80211_registered_device **rdev, | |
10184 | struct wireless_dev **wdev) | |
10185 | { | |
10186 | u32 vid, subcmd; | |
10187 | unsigned int i; | |
10188 | int vcmd_idx = -1; | |
10189 | int err; | |
10190 | void *data = NULL; | |
10191 | unsigned int data_len = 0; | |
10192 | ||
10193 | rtnl_lock(); | |
10194 | ||
10195 | if (cb->args[0]) { | |
10196 | /* subtract the 1 again here */ | |
10197 | struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1); | |
10198 | struct wireless_dev *tmp; | |
10199 | ||
10200 | if (!wiphy) { | |
10201 | err = -ENODEV; | |
10202 | goto out_unlock; | |
10203 | } | |
10204 | *rdev = wiphy_to_rdev(wiphy); | |
10205 | *wdev = NULL; | |
10206 | ||
10207 | if (cb->args[1]) { | |
10208 | list_for_each_entry(tmp, &(*rdev)->wdev_list, list) { | |
10209 | if (tmp->identifier == cb->args[1] - 1) { | |
10210 | *wdev = tmp; | |
10211 | break; | |
10212 | } | |
10213 | } | |
10214 | } | |
10215 | ||
10216 | /* keep rtnl locked in successful case */ | |
10217 | return 0; | |
10218 | } | |
10219 | ||
10220 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
10221 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
10222 | nl80211_policy); | |
10223 | if (err) | |
10224 | goto out_unlock; | |
10225 | ||
10226 | if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] || | |
10227 | !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) { | |
10228 | err = -EINVAL; | |
10229 | goto out_unlock; | |
10230 | } | |
10231 | ||
10232 | *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), | |
10233 | nl80211_fam.attrbuf); | |
10234 | if (IS_ERR(*wdev)) | |
10235 | *wdev = NULL; | |
10236 | ||
10237 | *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), | |
10238 | nl80211_fam.attrbuf); | |
10239 | if (IS_ERR(*rdev)) { | |
10240 | err = PTR_ERR(*rdev); | |
10241 | goto out_unlock; | |
10242 | } | |
10243 | ||
10244 | vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]); | |
10245 | subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]); | |
10246 | ||
10247 | for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) { | |
10248 | const struct wiphy_vendor_command *vcmd; | |
10249 | ||
10250 | vcmd = &(*rdev)->wiphy.vendor_commands[i]; | |
10251 | ||
10252 | if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd) | |
10253 | continue; | |
10254 | ||
10255 | if (!vcmd->dumpit) { | |
10256 | err = -EOPNOTSUPP; | |
10257 | goto out_unlock; | |
10258 | } | |
10259 | ||
10260 | vcmd_idx = i; | |
10261 | break; | |
10262 | } | |
10263 | ||
10264 | if (vcmd_idx < 0) { | |
10265 | err = -EOPNOTSUPP; | |
10266 | goto out_unlock; | |
10267 | } | |
10268 | ||
10269 | if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) { | |
10270 | data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]); | |
10271 | data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]); | |
10272 | } | |
10273 | ||
10274 | /* 0 is the first index - add 1 to parse only once */ | |
10275 | cb->args[0] = (*rdev)->wiphy_idx + 1; | |
10276 | /* add 1 to know if it was NULL */ | |
10277 | cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0; | |
10278 | cb->args[2] = vcmd_idx; | |
10279 | cb->args[3] = (unsigned long)data; | |
10280 | cb->args[4] = data_len; | |
10281 | ||
10282 | /* keep rtnl locked in successful case */ | |
10283 | return 0; | |
10284 | out_unlock: | |
10285 | rtnl_unlock(); | |
10286 | return err; | |
10287 | } | |
10288 | ||
10289 | static int nl80211_vendor_cmd_dump(struct sk_buff *skb, | |
10290 | struct netlink_callback *cb) | |
10291 | { | |
10292 | struct cfg80211_registered_device *rdev; | |
10293 | struct wireless_dev *wdev; | |
10294 | unsigned int vcmd_idx; | |
10295 | const struct wiphy_vendor_command *vcmd; | |
10296 | void *data; | |
10297 | int data_len; | |
10298 | int err; | |
10299 | struct nlattr *vendor_data; | |
10300 | ||
10301 | err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev); | |
10302 | if (err) | |
10303 | return err; | |
10304 | ||
10305 | vcmd_idx = cb->args[2]; | |
10306 | data = (void *)cb->args[3]; | |
10307 | data_len = cb->args[4]; | |
10308 | vcmd = &rdev->wiphy.vendor_commands[vcmd_idx]; | |
10309 | ||
10310 | if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV | | |
10311 | WIPHY_VENDOR_CMD_NEED_NETDEV)) { | |
10312 | if (!wdev) | |
10313 | return -EINVAL; | |
10314 | if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV && | |
10315 | !wdev->netdev) | |
10316 | return -EINVAL; | |
10317 | ||
10318 | if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) { | |
10319 | if (wdev->netdev && | |
10320 | !netif_running(wdev->netdev)) | |
10321 | return -ENETDOWN; | |
10322 | if (!wdev->netdev && !wdev->p2p_started) | |
10323 | return -ENETDOWN; | |
10324 | } | |
10325 | } | |
10326 | ||
10327 | while (1) { | |
10328 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, | |
10329 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
10330 | NL80211_CMD_VENDOR); | |
10331 | if (!hdr) | |
10332 | break; | |
10333 | ||
10334 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
10335 | (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV, | |
10336 | wdev_id(wdev)))) { | |
10337 | genlmsg_cancel(skb, hdr); | |
10338 | break; | |
10339 | } | |
10340 | ||
10341 | vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA); | |
10342 | if (!vendor_data) { | |
10343 | genlmsg_cancel(skb, hdr); | |
10344 | break; | |
10345 | } | |
10346 | ||
10347 | err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len, | |
10348 | (unsigned long *)&cb->args[5]); | |
10349 | nla_nest_end(skb, vendor_data); | |
10350 | ||
10351 | if (err == -ENOBUFS || err == -ENOENT) { | |
10352 | genlmsg_cancel(skb, hdr); | |
10353 | break; | |
10354 | } else if (err) { | |
10355 | genlmsg_cancel(skb, hdr); | |
10356 | goto out; | |
10357 | } | |
10358 | ||
10359 | genlmsg_end(skb, hdr); | |
10360 | } | |
10361 | ||
10362 | err = skb->len; | |
10363 | out: | |
10364 | rtnl_unlock(); | |
10365 | return err; | |
10366 | } | |
10367 | ||
ad7e718c JB |
10368 | struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy, |
10369 | enum nl80211_commands cmd, | |
10370 | enum nl80211_attrs attr, | |
10371 | int approxlen) | |
10372 | { | |
f26cbf40 | 10373 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
ad7e718c JB |
10374 | |
10375 | if (WARN_ON(!rdev->cur_cmd_info)) | |
10376 | return NULL; | |
10377 | ||
6c09e791 | 10378 | return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen, |
ad7e718c JB |
10379 | rdev->cur_cmd_info->snd_portid, |
10380 | rdev->cur_cmd_info->snd_seq, | |
567ffc35 | 10381 | cmd, attr, NULL, GFP_KERNEL); |
ad7e718c JB |
10382 | } |
10383 | EXPORT_SYMBOL(__cfg80211_alloc_reply_skb); | |
10384 | ||
10385 | int cfg80211_vendor_cmd_reply(struct sk_buff *skb) | |
10386 | { | |
10387 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
10388 | void *hdr = ((void **)skb->cb)[1]; | |
10389 | struct nlattr *data = ((void **)skb->cb)[2]; | |
10390 | ||
bd8c78e7 JB |
10391 | /* clear CB data for netlink core to own from now on */ |
10392 | memset(skb->cb, 0, sizeof(skb->cb)); | |
10393 | ||
ad7e718c JB |
10394 | if (WARN_ON(!rdev->cur_cmd_info)) { |
10395 | kfree_skb(skb); | |
10396 | return -EINVAL; | |
10397 | } | |
10398 | ||
10399 | nla_nest_end(skb, data); | |
10400 | genlmsg_end(skb, hdr); | |
10401 | return genlmsg_reply(skb, rdev->cur_cmd_info); | |
10402 | } | |
10403 | EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply); | |
10404 | ||
10405 | ||
fa9ffc74 KP |
10406 | static int nl80211_set_qos_map(struct sk_buff *skb, |
10407 | struct genl_info *info) | |
10408 | { | |
10409 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10410 | struct cfg80211_qos_map *qos_map = NULL; | |
10411 | struct net_device *dev = info->user_ptr[1]; | |
10412 | u8 *pos, len, num_des, des_len, des; | |
10413 | int ret; | |
10414 | ||
10415 | if (!rdev->ops->set_qos_map) | |
10416 | return -EOPNOTSUPP; | |
10417 | ||
10418 | if (info->attrs[NL80211_ATTR_QOS_MAP]) { | |
10419 | pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]); | |
10420 | len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]); | |
10421 | ||
10422 | if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN || | |
10423 | len > IEEE80211_QOS_MAP_LEN_MAX) | |
10424 | return -EINVAL; | |
10425 | ||
10426 | qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL); | |
10427 | if (!qos_map) | |
10428 | return -ENOMEM; | |
10429 | ||
10430 | num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1; | |
10431 | if (num_des) { | |
10432 | des_len = num_des * | |
10433 | sizeof(struct cfg80211_dscp_exception); | |
10434 | memcpy(qos_map->dscp_exception, pos, des_len); | |
10435 | qos_map->num_des = num_des; | |
10436 | for (des = 0; des < num_des; des++) { | |
10437 | if (qos_map->dscp_exception[des].up > 7) { | |
10438 | kfree(qos_map); | |
10439 | return -EINVAL; | |
10440 | } | |
10441 | } | |
10442 | pos += des_len; | |
10443 | } | |
10444 | memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN); | |
10445 | } | |
10446 | ||
10447 | wdev_lock(dev->ieee80211_ptr); | |
10448 | ret = nl80211_key_allowed(dev->ieee80211_ptr); | |
10449 | if (!ret) | |
10450 | ret = rdev_set_qos_map(rdev, dev, qos_map); | |
10451 | wdev_unlock(dev->ieee80211_ptr); | |
10452 | ||
10453 | kfree(qos_map); | |
10454 | return ret; | |
10455 | } | |
10456 | ||
960d01ac JB |
10457 | static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info) |
10458 | { | |
10459 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10460 | struct net_device *dev = info->user_ptr[1]; | |
10461 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
10462 | const u8 *peer; | |
10463 | u8 tsid, up; | |
10464 | u16 admitted_time = 0; | |
10465 | int err; | |
10466 | ||
723e73ac | 10467 | if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)) |
960d01ac JB |
10468 | return -EOPNOTSUPP; |
10469 | ||
10470 | if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] || | |
10471 | !info->attrs[NL80211_ATTR_USER_PRIO]) | |
10472 | return -EINVAL; | |
10473 | ||
10474 | tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]); | |
10475 | if (tsid >= IEEE80211_NUM_TIDS) | |
10476 | return -EINVAL; | |
10477 | ||
10478 | up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]); | |
10479 | if (up >= IEEE80211_NUM_UPS) | |
10480 | return -EINVAL; | |
10481 | ||
10482 | /* WMM uses TIDs 0-7 even for TSPEC */ | |
723e73ac | 10483 | if (tsid >= IEEE80211_FIRST_TSPEC_TSID) { |
960d01ac | 10484 | /* TODO: handle 802.11 TSPEC/admission control |
723e73ac JB |
10485 | * need more attributes for that (e.g. BA session requirement); |
10486 | * change the WMM adminssion test above to allow both then | |
960d01ac JB |
10487 | */ |
10488 | return -EINVAL; | |
10489 | } | |
10490 | ||
10491 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
10492 | ||
10493 | if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) { | |
10494 | admitted_time = | |
10495 | nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]); | |
10496 | if (!admitted_time) | |
10497 | return -EINVAL; | |
10498 | } | |
10499 | ||
10500 | wdev_lock(wdev); | |
10501 | switch (wdev->iftype) { | |
10502 | case NL80211_IFTYPE_STATION: | |
10503 | case NL80211_IFTYPE_P2P_CLIENT: | |
10504 | if (wdev->current_bss) | |
10505 | break; | |
10506 | err = -ENOTCONN; | |
10507 | goto out; | |
10508 | default: | |
10509 | err = -EOPNOTSUPP; | |
10510 | goto out; | |
10511 | } | |
10512 | ||
10513 | err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time); | |
10514 | ||
10515 | out: | |
10516 | wdev_unlock(wdev); | |
10517 | return err; | |
10518 | } | |
10519 | ||
10520 | static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info) | |
10521 | { | |
10522 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10523 | struct net_device *dev = info->user_ptr[1]; | |
10524 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
10525 | const u8 *peer; | |
10526 | u8 tsid; | |
10527 | int err; | |
10528 | ||
10529 | if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC]) | |
10530 | return -EINVAL; | |
10531 | ||
10532 | tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]); | |
10533 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
10534 | ||
10535 | wdev_lock(wdev); | |
10536 | err = rdev_del_tx_ts(rdev, dev, tsid, peer); | |
10537 | wdev_unlock(wdev); | |
10538 | ||
10539 | return err; | |
10540 | } | |
10541 | ||
1057d35e AN |
10542 | static int nl80211_tdls_channel_switch(struct sk_buff *skb, |
10543 | struct genl_info *info) | |
10544 | { | |
10545 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10546 | struct net_device *dev = info->user_ptr[1]; | |
10547 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
10548 | struct cfg80211_chan_def chandef = {}; | |
10549 | const u8 *addr; | |
10550 | u8 oper_class; | |
10551 | int err; | |
10552 | ||
10553 | if (!rdev->ops->tdls_channel_switch || | |
10554 | !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH)) | |
10555 | return -EOPNOTSUPP; | |
10556 | ||
10557 | switch (dev->ieee80211_ptr->iftype) { | |
10558 | case NL80211_IFTYPE_STATION: | |
10559 | case NL80211_IFTYPE_P2P_CLIENT: | |
10560 | break; | |
10561 | default: | |
10562 | return -EOPNOTSUPP; | |
10563 | } | |
10564 | ||
10565 | if (!info->attrs[NL80211_ATTR_MAC] || | |
10566 | !info->attrs[NL80211_ATTR_OPER_CLASS]) | |
10567 | return -EINVAL; | |
10568 | ||
10569 | err = nl80211_parse_chandef(rdev, info, &chandef); | |
10570 | if (err) | |
10571 | return err; | |
10572 | ||
10573 | /* | |
10574 | * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012 | |
10575 | * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the | |
10576 | * specification is not defined for them. | |
10577 | */ | |
10578 | if (chandef.chan->band == IEEE80211_BAND_2GHZ && | |
10579 | chandef.width != NL80211_CHAN_WIDTH_20_NOHT && | |
10580 | chandef.width != NL80211_CHAN_WIDTH_20) | |
10581 | return -EINVAL; | |
10582 | ||
10583 | /* we will be active on the TDLS link */ | |
923b352f AN |
10584 | if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef, |
10585 | wdev->iftype)) | |
1057d35e AN |
10586 | return -EINVAL; |
10587 | ||
10588 | /* don't allow switching to DFS channels */ | |
10589 | if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype)) | |
10590 | return -EINVAL; | |
10591 | ||
10592 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
10593 | oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]); | |
10594 | ||
10595 | wdev_lock(wdev); | |
10596 | err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef); | |
10597 | wdev_unlock(wdev); | |
10598 | ||
10599 | return err; | |
10600 | } | |
10601 | ||
10602 | static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb, | |
10603 | struct genl_info *info) | |
10604 | { | |
10605 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10606 | struct net_device *dev = info->user_ptr[1]; | |
10607 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
10608 | const u8 *addr; | |
10609 | ||
10610 | if (!rdev->ops->tdls_channel_switch || | |
10611 | !rdev->ops->tdls_cancel_channel_switch || | |
10612 | !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH)) | |
10613 | return -EOPNOTSUPP; | |
10614 | ||
10615 | switch (dev->ieee80211_ptr->iftype) { | |
10616 | case NL80211_IFTYPE_STATION: | |
10617 | case NL80211_IFTYPE_P2P_CLIENT: | |
10618 | break; | |
10619 | default: | |
10620 | return -EOPNOTSUPP; | |
10621 | } | |
10622 | ||
10623 | if (!info->attrs[NL80211_ATTR_MAC]) | |
10624 | return -EINVAL; | |
10625 | ||
10626 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
10627 | ||
10628 | wdev_lock(wdev); | |
10629 | rdev_tdls_cancel_channel_switch(rdev, dev, addr); | |
10630 | wdev_unlock(wdev); | |
10631 | ||
10632 | return 0; | |
10633 | } | |
10634 | ||
4c476991 JB |
10635 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
10636 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
10637 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
41265714 JB |
10638 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
10639 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
10640 | NL80211_FLAG_CHECK_NETDEV_UP) | |
1bf614ef | 10641 | #define NL80211_FLAG_NEED_WDEV 0x10 |
98104fde | 10642 | /* If a netdev is associated, it must be UP, P2P must be started */ |
1bf614ef JB |
10643 | #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\ |
10644 | NL80211_FLAG_CHECK_NETDEV_UP) | |
5393b917 | 10645 | #define NL80211_FLAG_CLEAR_SKB 0x20 |
4c476991 | 10646 | |
f84f771d | 10647 | static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, |
4c476991 JB |
10648 | struct genl_info *info) |
10649 | { | |
10650 | struct cfg80211_registered_device *rdev; | |
89a54e48 | 10651 | struct wireless_dev *wdev; |
4c476991 | 10652 | struct net_device *dev; |
4c476991 JB |
10653 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; |
10654 | ||
10655 | if (rtnl) | |
10656 | rtnl_lock(); | |
10657 | ||
10658 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
4f7eff10 | 10659 | rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); |
4c476991 JB |
10660 | if (IS_ERR(rdev)) { |
10661 | if (rtnl) | |
10662 | rtnl_unlock(); | |
10663 | return PTR_ERR(rdev); | |
10664 | } | |
10665 | info->user_ptr[0] = rdev; | |
1bf614ef JB |
10666 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV || |
10667 | ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
5fe231e8 JB |
10668 | ASSERT_RTNL(); |
10669 | ||
89a54e48 JB |
10670 | wdev = __cfg80211_wdev_from_attrs(genl_info_net(info), |
10671 | info->attrs); | |
10672 | if (IS_ERR(wdev)) { | |
4c476991 JB |
10673 | if (rtnl) |
10674 | rtnl_unlock(); | |
89a54e48 | 10675 | return PTR_ERR(wdev); |
4c476991 | 10676 | } |
89a54e48 | 10677 | |
89a54e48 | 10678 | dev = wdev->netdev; |
f26cbf40 | 10679 | rdev = wiphy_to_rdev(wdev->wiphy); |
89a54e48 | 10680 | |
1bf614ef JB |
10681 | if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { |
10682 | if (!dev) { | |
1bf614ef JB |
10683 | if (rtnl) |
10684 | rtnl_unlock(); | |
10685 | return -EINVAL; | |
10686 | } | |
10687 | ||
10688 | info->user_ptr[1] = dev; | |
10689 | } else { | |
10690 | info->user_ptr[1] = wdev; | |
41265714 | 10691 | } |
1bf614ef JB |
10692 | |
10693 | if (dev) { | |
10694 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && | |
10695 | !netif_running(dev)) { | |
1bf614ef JB |
10696 | if (rtnl) |
10697 | rtnl_unlock(); | |
10698 | return -ENETDOWN; | |
10699 | } | |
10700 | ||
10701 | dev_hold(dev); | |
98104fde JB |
10702 | } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) { |
10703 | if (!wdev->p2p_started) { | |
98104fde JB |
10704 | if (rtnl) |
10705 | rtnl_unlock(); | |
10706 | return -ENETDOWN; | |
10707 | } | |
41265714 | 10708 | } |
89a54e48 | 10709 | |
4c476991 | 10710 | info->user_ptr[0] = rdev; |
4c476991 JB |
10711 | } |
10712 | ||
10713 | return 0; | |
10714 | } | |
10715 | ||
f84f771d | 10716 | static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb, |
4c476991 JB |
10717 | struct genl_info *info) |
10718 | { | |
1bf614ef JB |
10719 | if (info->user_ptr[1]) { |
10720 | if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
10721 | struct wireless_dev *wdev = info->user_ptr[1]; | |
10722 | ||
10723 | if (wdev->netdev) | |
10724 | dev_put(wdev->netdev); | |
10725 | } else { | |
10726 | dev_put(info->user_ptr[1]); | |
10727 | } | |
10728 | } | |
5393b917 | 10729 | |
4c476991 JB |
10730 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) |
10731 | rtnl_unlock(); | |
5393b917 JB |
10732 | |
10733 | /* If needed, clear the netlink message payload from the SKB | |
10734 | * as it might contain key data that shouldn't stick around on | |
10735 | * the heap after the SKB is freed. The netlink message header | |
10736 | * is still needed for further processing, so leave it intact. | |
10737 | */ | |
10738 | if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) { | |
10739 | struct nlmsghdr *nlh = nlmsg_hdr(skb); | |
10740 | ||
10741 | memset(nlmsg_data(nlh), 0, nlmsg_len(nlh)); | |
10742 | } | |
4c476991 JB |
10743 | } |
10744 | ||
4534de83 | 10745 | static const struct genl_ops nl80211_ops[] = { |
55682965 JB |
10746 | { |
10747 | .cmd = NL80211_CMD_GET_WIPHY, | |
10748 | .doit = nl80211_get_wiphy, | |
10749 | .dumpit = nl80211_dump_wiphy, | |
86e8cf98 | 10750 | .done = nl80211_dump_wiphy_done, |
55682965 JB |
10751 | .policy = nl80211_policy, |
10752 | /* can be retrieved by unprivileged users */ | |
5fe231e8 JB |
10753 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
10754 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
10755 | }, |
10756 | { | |
10757 | .cmd = NL80211_CMD_SET_WIPHY, | |
10758 | .doit = nl80211_set_wiphy, | |
10759 | .policy = nl80211_policy, | |
10760 | .flags = GENL_ADMIN_PERM, | |
4c476991 | 10761 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
55682965 JB |
10762 | }, |
10763 | { | |
10764 | .cmd = NL80211_CMD_GET_INTERFACE, | |
10765 | .doit = nl80211_get_interface, | |
10766 | .dumpit = nl80211_dump_interface, | |
10767 | .policy = nl80211_policy, | |
10768 | /* can be retrieved by unprivileged users */ | |
5fe231e8 JB |
10769 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
10770 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
10771 | }, |
10772 | { | |
10773 | .cmd = NL80211_CMD_SET_INTERFACE, | |
10774 | .doit = nl80211_set_interface, | |
10775 | .policy = nl80211_policy, | |
10776 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
10777 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
10778 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
10779 | }, |
10780 | { | |
10781 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
10782 | .doit = nl80211_new_interface, | |
10783 | .policy = nl80211_policy, | |
10784 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
10785 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
10786 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
10787 | }, |
10788 | { | |
10789 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
10790 | .doit = nl80211_del_interface, | |
10791 | .policy = nl80211_policy, | |
41ade00f | 10792 | .flags = GENL_ADMIN_PERM, |
84efbb84 | 10793 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
4c476991 | 10794 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
10795 | }, |
10796 | { | |
10797 | .cmd = NL80211_CMD_GET_KEY, | |
10798 | .doit = nl80211_get_key, | |
10799 | .policy = nl80211_policy, | |
10800 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 10801 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10802 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
10803 | }, |
10804 | { | |
10805 | .cmd = NL80211_CMD_SET_KEY, | |
10806 | .doit = nl80211_set_key, | |
10807 | .policy = nl80211_policy, | |
10808 | .flags = GENL_ADMIN_PERM, | |
41265714 | 10809 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
5393b917 JB |
10810 | NL80211_FLAG_NEED_RTNL | |
10811 | NL80211_FLAG_CLEAR_SKB, | |
41ade00f JB |
10812 | }, |
10813 | { | |
10814 | .cmd = NL80211_CMD_NEW_KEY, | |
10815 | .doit = nl80211_new_key, | |
10816 | .policy = nl80211_policy, | |
10817 | .flags = GENL_ADMIN_PERM, | |
41265714 | 10818 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
5393b917 JB |
10819 | NL80211_FLAG_NEED_RTNL | |
10820 | NL80211_FLAG_CLEAR_SKB, | |
41ade00f JB |
10821 | }, |
10822 | { | |
10823 | .cmd = NL80211_CMD_DEL_KEY, | |
10824 | .doit = nl80211_del_key, | |
10825 | .policy = nl80211_policy, | |
55682965 | 10826 | .flags = GENL_ADMIN_PERM, |
41265714 | 10827 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10828 | NL80211_FLAG_NEED_RTNL, |
55682965 | 10829 | }, |
ed1b6cc7 JB |
10830 | { |
10831 | .cmd = NL80211_CMD_SET_BEACON, | |
10832 | .policy = nl80211_policy, | |
10833 | .flags = GENL_ADMIN_PERM, | |
8860020e | 10834 | .doit = nl80211_set_beacon, |
2b5f8b0b | 10835 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10836 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
10837 | }, |
10838 | { | |
8860020e | 10839 | .cmd = NL80211_CMD_START_AP, |
ed1b6cc7 JB |
10840 | .policy = nl80211_policy, |
10841 | .flags = GENL_ADMIN_PERM, | |
8860020e | 10842 | .doit = nl80211_start_ap, |
2b5f8b0b | 10843 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10844 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
10845 | }, |
10846 | { | |
8860020e | 10847 | .cmd = NL80211_CMD_STOP_AP, |
ed1b6cc7 JB |
10848 | .policy = nl80211_policy, |
10849 | .flags = GENL_ADMIN_PERM, | |
8860020e | 10850 | .doit = nl80211_stop_ap, |
2b5f8b0b | 10851 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10852 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 | 10853 | }, |
5727ef1b JB |
10854 | { |
10855 | .cmd = NL80211_CMD_GET_STATION, | |
10856 | .doit = nl80211_get_station, | |
2ec600d6 | 10857 | .dumpit = nl80211_dump_station, |
5727ef1b | 10858 | .policy = nl80211_policy, |
4c476991 JB |
10859 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
10860 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
10861 | }, |
10862 | { | |
10863 | .cmd = NL80211_CMD_SET_STATION, | |
10864 | .doit = nl80211_set_station, | |
10865 | .policy = nl80211_policy, | |
10866 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 10867 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10868 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
10869 | }, |
10870 | { | |
10871 | .cmd = NL80211_CMD_NEW_STATION, | |
10872 | .doit = nl80211_new_station, | |
10873 | .policy = nl80211_policy, | |
10874 | .flags = GENL_ADMIN_PERM, | |
41265714 | 10875 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10876 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
10877 | }, |
10878 | { | |
10879 | .cmd = NL80211_CMD_DEL_STATION, | |
10880 | .doit = nl80211_del_station, | |
10881 | .policy = nl80211_policy, | |
2ec600d6 | 10882 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 10883 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10884 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
10885 | }, |
10886 | { | |
10887 | .cmd = NL80211_CMD_GET_MPATH, | |
10888 | .doit = nl80211_get_mpath, | |
10889 | .dumpit = nl80211_dump_mpath, | |
10890 | .policy = nl80211_policy, | |
10891 | .flags = GENL_ADMIN_PERM, | |
41265714 | 10892 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10893 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 | 10894 | }, |
66be7d2b HR |
10895 | { |
10896 | .cmd = NL80211_CMD_GET_MPP, | |
10897 | .doit = nl80211_get_mpp, | |
10898 | .dumpit = nl80211_dump_mpp, | |
10899 | .policy = nl80211_policy, | |
10900 | .flags = GENL_ADMIN_PERM, | |
10901 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10902 | NL80211_FLAG_NEED_RTNL, | |
10903 | }, | |
2ec600d6 LCC |
10904 | { |
10905 | .cmd = NL80211_CMD_SET_MPATH, | |
10906 | .doit = nl80211_set_mpath, | |
10907 | .policy = nl80211_policy, | |
10908 | .flags = GENL_ADMIN_PERM, | |
41265714 | 10909 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10910 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
10911 | }, |
10912 | { | |
10913 | .cmd = NL80211_CMD_NEW_MPATH, | |
10914 | .doit = nl80211_new_mpath, | |
10915 | .policy = nl80211_policy, | |
10916 | .flags = GENL_ADMIN_PERM, | |
41265714 | 10917 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10918 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
10919 | }, |
10920 | { | |
10921 | .cmd = NL80211_CMD_DEL_MPATH, | |
10922 | .doit = nl80211_del_mpath, | |
10923 | .policy = nl80211_policy, | |
9f1ba906 | 10924 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 10925 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10926 | NL80211_FLAG_NEED_RTNL, |
9f1ba906 JM |
10927 | }, |
10928 | { | |
10929 | .cmd = NL80211_CMD_SET_BSS, | |
10930 | .doit = nl80211_set_bss, | |
10931 | .policy = nl80211_policy, | |
b2e1b302 | 10932 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 10933 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10934 | NL80211_FLAG_NEED_RTNL, |
b2e1b302 | 10935 | }, |
f130347c LR |
10936 | { |
10937 | .cmd = NL80211_CMD_GET_REG, | |
ad30ca2c AN |
10938 | .doit = nl80211_get_reg_do, |
10939 | .dumpit = nl80211_get_reg_dump, | |
f130347c | 10940 | .policy = nl80211_policy, |
5fe231e8 | 10941 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
f130347c LR |
10942 | /* can be retrieved by unprivileged users */ |
10943 | }, | |
b6863036 | 10944 | #ifdef CONFIG_CFG80211_CRDA_SUPPORT |
b2e1b302 LR |
10945 | { |
10946 | .cmd = NL80211_CMD_SET_REG, | |
10947 | .doit = nl80211_set_reg, | |
10948 | .policy = nl80211_policy, | |
10949 | .flags = GENL_ADMIN_PERM, | |
5fe231e8 | 10950 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
b2e1b302 | 10951 | }, |
b6863036 | 10952 | #endif |
b2e1b302 LR |
10953 | { |
10954 | .cmd = NL80211_CMD_REQ_SET_REG, | |
10955 | .doit = nl80211_req_set_reg, | |
10956 | .policy = nl80211_policy, | |
93da9cc1 | 10957 | .flags = GENL_ADMIN_PERM, |
10958 | }, | |
10959 | { | |
24bdd9f4 JC |
10960 | .cmd = NL80211_CMD_GET_MESH_CONFIG, |
10961 | .doit = nl80211_get_mesh_config, | |
93da9cc1 | 10962 | .policy = nl80211_policy, |
10963 | /* can be retrieved by unprivileged users */ | |
2b5f8b0b | 10964 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10965 | NL80211_FLAG_NEED_RTNL, |
93da9cc1 | 10966 | }, |
10967 | { | |
24bdd9f4 JC |
10968 | .cmd = NL80211_CMD_SET_MESH_CONFIG, |
10969 | .doit = nl80211_update_mesh_config, | |
93da9cc1 | 10970 | .policy = nl80211_policy, |
9aed3cc1 | 10971 | .flags = GENL_ADMIN_PERM, |
29cbe68c | 10972 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10973 | NL80211_FLAG_NEED_RTNL, |
9aed3cc1 | 10974 | }, |
2a519311 JB |
10975 | { |
10976 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
10977 | .doit = nl80211_trigger_scan, | |
10978 | .policy = nl80211_policy, | |
10979 | .flags = GENL_ADMIN_PERM, | |
fd014284 | 10980 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 10981 | NL80211_FLAG_NEED_RTNL, |
2a519311 | 10982 | }, |
91d3ab46 VK |
10983 | { |
10984 | .cmd = NL80211_CMD_ABORT_SCAN, | |
10985 | .doit = nl80211_abort_scan, | |
10986 | .policy = nl80211_policy, | |
10987 | .flags = GENL_ADMIN_PERM, | |
10988 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
10989 | NL80211_FLAG_NEED_RTNL, | |
10990 | }, | |
2a519311 JB |
10991 | { |
10992 | .cmd = NL80211_CMD_GET_SCAN, | |
10993 | .policy = nl80211_policy, | |
10994 | .dumpit = nl80211_dump_scan, | |
10995 | }, | |
807f8a8c LC |
10996 | { |
10997 | .cmd = NL80211_CMD_START_SCHED_SCAN, | |
10998 | .doit = nl80211_start_sched_scan, | |
10999 | .policy = nl80211_policy, | |
11000 | .flags = GENL_ADMIN_PERM, | |
11001 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11002 | NL80211_FLAG_NEED_RTNL, | |
11003 | }, | |
11004 | { | |
11005 | .cmd = NL80211_CMD_STOP_SCHED_SCAN, | |
11006 | .doit = nl80211_stop_sched_scan, | |
11007 | .policy = nl80211_policy, | |
11008 | .flags = GENL_ADMIN_PERM, | |
11009 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11010 | NL80211_FLAG_NEED_RTNL, | |
11011 | }, | |
636a5d36 JM |
11012 | { |
11013 | .cmd = NL80211_CMD_AUTHENTICATE, | |
11014 | .doit = nl80211_authenticate, | |
11015 | .policy = nl80211_policy, | |
11016 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11017 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
5393b917 JB |
11018 | NL80211_FLAG_NEED_RTNL | |
11019 | NL80211_FLAG_CLEAR_SKB, | |
636a5d36 JM |
11020 | }, |
11021 | { | |
11022 | .cmd = NL80211_CMD_ASSOCIATE, | |
11023 | .doit = nl80211_associate, | |
11024 | .policy = nl80211_policy, | |
11025 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11026 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11027 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
11028 | }, |
11029 | { | |
11030 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
11031 | .doit = nl80211_deauthenticate, | |
11032 | .policy = nl80211_policy, | |
11033 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11034 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11035 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
11036 | }, |
11037 | { | |
11038 | .cmd = NL80211_CMD_DISASSOCIATE, | |
11039 | .doit = nl80211_disassociate, | |
11040 | .policy = nl80211_policy, | |
11041 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11042 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11043 | NL80211_FLAG_NEED_RTNL, |
636a5d36 | 11044 | }, |
04a773ad JB |
11045 | { |
11046 | .cmd = NL80211_CMD_JOIN_IBSS, | |
11047 | .doit = nl80211_join_ibss, | |
11048 | .policy = nl80211_policy, | |
11049 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11050 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11051 | NL80211_FLAG_NEED_RTNL, |
04a773ad JB |
11052 | }, |
11053 | { | |
11054 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
11055 | .doit = nl80211_leave_ibss, | |
11056 | .policy = nl80211_policy, | |
11057 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11058 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11059 | NL80211_FLAG_NEED_RTNL, |
04a773ad | 11060 | }, |
aff89a9b JB |
11061 | #ifdef CONFIG_NL80211_TESTMODE |
11062 | { | |
11063 | .cmd = NL80211_CMD_TESTMODE, | |
11064 | .doit = nl80211_testmode_do, | |
71063f0e | 11065 | .dumpit = nl80211_testmode_dump, |
aff89a9b JB |
11066 | .policy = nl80211_policy, |
11067 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
11068 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
11069 | NL80211_FLAG_NEED_RTNL, | |
aff89a9b JB |
11070 | }, |
11071 | #endif | |
b23aa676 SO |
11072 | { |
11073 | .cmd = NL80211_CMD_CONNECT, | |
11074 | .doit = nl80211_connect, | |
11075 | .policy = nl80211_policy, | |
11076 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11077 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11078 | NL80211_FLAG_NEED_RTNL, |
b23aa676 SO |
11079 | }, |
11080 | { | |
11081 | .cmd = NL80211_CMD_DISCONNECT, | |
11082 | .doit = nl80211_disconnect, | |
11083 | .policy = nl80211_policy, | |
11084 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11085 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11086 | NL80211_FLAG_NEED_RTNL, |
b23aa676 | 11087 | }, |
463d0183 JB |
11088 | { |
11089 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
11090 | .doit = nl80211_wiphy_netns, | |
11091 | .policy = nl80211_policy, | |
11092 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
11093 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
11094 | NL80211_FLAG_NEED_RTNL, | |
463d0183 | 11095 | }, |
61fa713c HS |
11096 | { |
11097 | .cmd = NL80211_CMD_GET_SURVEY, | |
11098 | .policy = nl80211_policy, | |
11099 | .dumpit = nl80211_dump_survey, | |
11100 | }, | |
67fbb16b SO |
11101 | { |
11102 | .cmd = NL80211_CMD_SET_PMKSA, | |
11103 | .doit = nl80211_setdel_pmksa, | |
11104 | .policy = nl80211_policy, | |
11105 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 11106 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11107 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
11108 | }, |
11109 | { | |
11110 | .cmd = NL80211_CMD_DEL_PMKSA, | |
11111 | .doit = nl80211_setdel_pmksa, | |
11112 | .policy = nl80211_policy, | |
11113 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 11114 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11115 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
11116 | }, |
11117 | { | |
11118 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
11119 | .doit = nl80211_flush_pmksa, | |
11120 | .policy = nl80211_policy, | |
11121 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 11122 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11123 | NL80211_FLAG_NEED_RTNL, |
67fbb16b | 11124 | }, |
9588bbd5 JM |
11125 | { |
11126 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
11127 | .doit = nl80211_remain_on_channel, | |
11128 | .policy = nl80211_policy, | |
11129 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 11130 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 11131 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 JM |
11132 | }, |
11133 | { | |
11134 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
11135 | .doit = nl80211_cancel_remain_on_channel, | |
11136 | .policy = nl80211_policy, | |
11137 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 11138 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 11139 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 | 11140 | }, |
13ae75b1 JM |
11141 | { |
11142 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
11143 | .doit = nl80211_set_tx_bitrate_mask, | |
11144 | .policy = nl80211_policy, | |
11145 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
11146 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
11147 | NL80211_FLAG_NEED_RTNL, | |
13ae75b1 | 11148 | }, |
026331c4 | 11149 | { |
2e161f78 JB |
11150 | .cmd = NL80211_CMD_REGISTER_FRAME, |
11151 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
11152 | .policy = nl80211_policy, |
11153 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 11154 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
4c476991 | 11155 | NL80211_FLAG_NEED_RTNL, |
026331c4 JM |
11156 | }, |
11157 | { | |
2e161f78 JB |
11158 | .cmd = NL80211_CMD_FRAME, |
11159 | .doit = nl80211_tx_mgmt, | |
026331c4 | 11160 | .policy = nl80211_policy, |
f7ca38df | 11161 | .flags = GENL_ADMIN_PERM, |
71bbc994 | 11162 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
f7ca38df JB |
11163 | NL80211_FLAG_NEED_RTNL, |
11164 | }, | |
11165 | { | |
11166 | .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, | |
11167 | .doit = nl80211_tx_mgmt_cancel_wait, | |
11168 | .policy = nl80211_policy, | |
026331c4 | 11169 | .flags = GENL_ADMIN_PERM, |
71bbc994 | 11170 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 11171 | NL80211_FLAG_NEED_RTNL, |
026331c4 | 11172 | }, |
ffb9eb3d KV |
11173 | { |
11174 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
11175 | .doit = nl80211_set_power_save, | |
11176 | .policy = nl80211_policy, | |
11177 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
11178 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
11179 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d KV |
11180 | }, |
11181 | { | |
11182 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
11183 | .doit = nl80211_get_power_save, | |
11184 | .policy = nl80211_policy, | |
11185 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
11186 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
11187 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d | 11188 | }, |
d6dc1a38 JO |
11189 | { |
11190 | .cmd = NL80211_CMD_SET_CQM, | |
11191 | .doit = nl80211_set_cqm, | |
11192 | .policy = nl80211_policy, | |
11193 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
11194 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
11195 | NL80211_FLAG_NEED_RTNL, | |
d6dc1a38 | 11196 | }, |
f444de05 JB |
11197 | { |
11198 | .cmd = NL80211_CMD_SET_CHANNEL, | |
11199 | .doit = nl80211_set_channel, | |
11200 | .policy = nl80211_policy, | |
11201 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
11202 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
11203 | NL80211_FLAG_NEED_RTNL, | |
f444de05 | 11204 | }, |
e8347eba BJ |
11205 | { |
11206 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
11207 | .doit = nl80211_set_wds_peer, | |
11208 | .policy = nl80211_policy, | |
11209 | .flags = GENL_ADMIN_PERM, | |
43b19952 JB |
11210 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
11211 | NL80211_FLAG_NEED_RTNL, | |
e8347eba | 11212 | }, |
29cbe68c JB |
11213 | { |
11214 | .cmd = NL80211_CMD_JOIN_MESH, | |
11215 | .doit = nl80211_join_mesh, | |
11216 | .policy = nl80211_policy, | |
11217 | .flags = GENL_ADMIN_PERM, | |
11218 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11219 | NL80211_FLAG_NEED_RTNL, | |
11220 | }, | |
11221 | { | |
11222 | .cmd = NL80211_CMD_LEAVE_MESH, | |
11223 | .doit = nl80211_leave_mesh, | |
11224 | .policy = nl80211_policy, | |
11225 | .flags = GENL_ADMIN_PERM, | |
11226 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11227 | NL80211_FLAG_NEED_RTNL, | |
11228 | }, | |
6e0bd6c3 RL |
11229 | { |
11230 | .cmd = NL80211_CMD_JOIN_OCB, | |
11231 | .doit = nl80211_join_ocb, | |
11232 | .policy = nl80211_policy, | |
11233 | .flags = GENL_ADMIN_PERM, | |
11234 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11235 | NL80211_FLAG_NEED_RTNL, | |
11236 | }, | |
11237 | { | |
11238 | .cmd = NL80211_CMD_LEAVE_OCB, | |
11239 | .doit = nl80211_leave_ocb, | |
11240 | .policy = nl80211_policy, | |
11241 | .flags = GENL_ADMIN_PERM, | |
11242 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11243 | NL80211_FLAG_NEED_RTNL, | |
11244 | }, | |
dfb89c56 | 11245 | #ifdef CONFIG_PM |
ff1b6e69 JB |
11246 | { |
11247 | .cmd = NL80211_CMD_GET_WOWLAN, | |
11248 | .doit = nl80211_get_wowlan, | |
11249 | .policy = nl80211_policy, | |
11250 | /* can be retrieved by unprivileged users */ | |
11251 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
11252 | NL80211_FLAG_NEED_RTNL, | |
11253 | }, | |
11254 | { | |
11255 | .cmd = NL80211_CMD_SET_WOWLAN, | |
11256 | .doit = nl80211_set_wowlan, | |
11257 | .policy = nl80211_policy, | |
11258 | .flags = GENL_ADMIN_PERM, | |
11259 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
11260 | NL80211_FLAG_NEED_RTNL, | |
11261 | }, | |
dfb89c56 | 11262 | #endif |
e5497d76 JB |
11263 | { |
11264 | .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, | |
11265 | .doit = nl80211_set_rekey_data, | |
11266 | .policy = nl80211_policy, | |
11267 | .flags = GENL_ADMIN_PERM, | |
11268 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
5393b917 JB |
11269 | NL80211_FLAG_NEED_RTNL | |
11270 | NL80211_FLAG_CLEAR_SKB, | |
e5497d76 | 11271 | }, |
109086ce AN |
11272 | { |
11273 | .cmd = NL80211_CMD_TDLS_MGMT, | |
11274 | .doit = nl80211_tdls_mgmt, | |
11275 | .policy = nl80211_policy, | |
11276 | .flags = GENL_ADMIN_PERM, | |
11277 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11278 | NL80211_FLAG_NEED_RTNL, | |
11279 | }, | |
11280 | { | |
11281 | .cmd = NL80211_CMD_TDLS_OPER, | |
11282 | .doit = nl80211_tdls_oper, | |
11283 | .policy = nl80211_policy, | |
11284 | .flags = GENL_ADMIN_PERM, | |
11285 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11286 | NL80211_FLAG_NEED_RTNL, | |
11287 | }, | |
28946da7 JB |
11288 | { |
11289 | .cmd = NL80211_CMD_UNEXPECTED_FRAME, | |
11290 | .doit = nl80211_register_unexpected_frame, | |
11291 | .policy = nl80211_policy, | |
11292 | .flags = GENL_ADMIN_PERM, | |
11293 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
11294 | NL80211_FLAG_NEED_RTNL, | |
11295 | }, | |
7f6cf311 JB |
11296 | { |
11297 | .cmd = NL80211_CMD_PROBE_CLIENT, | |
11298 | .doit = nl80211_probe_client, | |
11299 | .policy = nl80211_policy, | |
11300 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 11301 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
7f6cf311 JB |
11302 | NL80211_FLAG_NEED_RTNL, |
11303 | }, | |
5e760230 JB |
11304 | { |
11305 | .cmd = NL80211_CMD_REGISTER_BEACONS, | |
11306 | .doit = nl80211_register_beacons, | |
11307 | .policy = nl80211_policy, | |
11308 | .flags = GENL_ADMIN_PERM, | |
11309 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
11310 | NL80211_FLAG_NEED_RTNL, | |
11311 | }, | |
1d9d9213 SW |
11312 | { |
11313 | .cmd = NL80211_CMD_SET_NOACK_MAP, | |
11314 | .doit = nl80211_set_noack_map, | |
11315 | .policy = nl80211_policy, | |
11316 | .flags = GENL_ADMIN_PERM, | |
11317 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
11318 | NL80211_FLAG_NEED_RTNL, | |
11319 | }, | |
98104fde JB |
11320 | { |
11321 | .cmd = NL80211_CMD_START_P2P_DEVICE, | |
11322 | .doit = nl80211_start_p2p_device, | |
11323 | .policy = nl80211_policy, | |
11324 | .flags = GENL_ADMIN_PERM, | |
11325 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
11326 | NL80211_FLAG_NEED_RTNL, | |
11327 | }, | |
11328 | { | |
11329 | .cmd = NL80211_CMD_STOP_P2P_DEVICE, | |
11330 | .doit = nl80211_stop_p2p_device, | |
11331 | .policy = nl80211_policy, | |
11332 | .flags = GENL_ADMIN_PERM, | |
11333 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
11334 | NL80211_FLAG_NEED_RTNL, | |
11335 | }, | |
f4e583c8 AQ |
11336 | { |
11337 | .cmd = NL80211_CMD_SET_MCAST_RATE, | |
11338 | .doit = nl80211_set_mcast_rate, | |
77765eaf VT |
11339 | .policy = nl80211_policy, |
11340 | .flags = GENL_ADMIN_PERM, | |
11341 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
11342 | NL80211_FLAG_NEED_RTNL, | |
11343 | }, | |
11344 | { | |
11345 | .cmd = NL80211_CMD_SET_MAC_ACL, | |
11346 | .doit = nl80211_set_mac_acl, | |
f4e583c8 AQ |
11347 | .policy = nl80211_policy, |
11348 | .flags = GENL_ADMIN_PERM, | |
11349 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
11350 | NL80211_FLAG_NEED_RTNL, | |
11351 | }, | |
04f39047 SW |
11352 | { |
11353 | .cmd = NL80211_CMD_RADAR_DETECT, | |
11354 | .doit = nl80211_start_radar_detection, | |
11355 | .policy = nl80211_policy, | |
11356 | .flags = GENL_ADMIN_PERM, | |
11357 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11358 | NL80211_FLAG_NEED_RTNL, | |
11359 | }, | |
3713b4e3 JB |
11360 | { |
11361 | .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES, | |
11362 | .doit = nl80211_get_protocol_features, | |
11363 | .policy = nl80211_policy, | |
11364 | }, | |
355199e0 JM |
11365 | { |
11366 | .cmd = NL80211_CMD_UPDATE_FT_IES, | |
11367 | .doit = nl80211_update_ft_ies, | |
11368 | .policy = nl80211_policy, | |
11369 | .flags = GENL_ADMIN_PERM, | |
11370 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11371 | NL80211_FLAG_NEED_RTNL, | |
11372 | }, | |
5de17984 AS |
11373 | { |
11374 | .cmd = NL80211_CMD_CRIT_PROTOCOL_START, | |
11375 | .doit = nl80211_crit_protocol_start, | |
11376 | .policy = nl80211_policy, | |
11377 | .flags = GENL_ADMIN_PERM, | |
11378 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
11379 | NL80211_FLAG_NEED_RTNL, | |
11380 | }, | |
11381 | { | |
11382 | .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP, | |
11383 | .doit = nl80211_crit_protocol_stop, | |
11384 | .policy = nl80211_policy, | |
11385 | .flags = GENL_ADMIN_PERM, | |
11386 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
11387 | NL80211_FLAG_NEED_RTNL, | |
be29b99a AK |
11388 | }, |
11389 | { | |
11390 | .cmd = NL80211_CMD_GET_COALESCE, | |
11391 | .doit = nl80211_get_coalesce, | |
11392 | .policy = nl80211_policy, | |
11393 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
11394 | NL80211_FLAG_NEED_RTNL, | |
11395 | }, | |
11396 | { | |
11397 | .cmd = NL80211_CMD_SET_COALESCE, | |
11398 | .doit = nl80211_set_coalesce, | |
11399 | .policy = nl80211_policy, | |
11400 | .flags = GENL_ADMIN_PERM, | |
11401 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
11402 | NL80211_FLAG_NEED_RTNL, | |
16ef1fe2 SW |
11403 | }, |
11404 | { | |
11405 | .cmd = NL80211_CMD_CHANNEL_SWITCH, | |
11406 | .doit = nl80211_channel_switch, | |
11407 | .policy = nl80211_policy, | |
11408 | .flags = GENL_ADMIN_PERM, | |
11409 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11410 | NL80211_FLAG_NEED_RTNL, | |
11411 | }, | |
ad7e718c JB |
11412 | { |
11413 | .cmd = NL80211_CMD_VENDOR, | |
11414 | .doit = nl80211_vendor_cmd, | |
7bdbe400 | 11415 | .dumpit = nl80211_vendor_cmd_dump, |
ad7e718c JB |
11416 | .policy = nl80211_policy, |
11417 | .flags = GENL_ADMIN_PERM, | |
11418 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
11419 | NL80211_FLAG_NEED_RTNL, | |
11420 | }, | |
fa9ffc74 KP |
11421 | { |
11422 | .cmd = NL80211_CMD_SET_QOS_MAP, | |
11423 | .doit = nl80211_set_qos_map, | |
11424 | .policy = nl80211_policy, | |
11425 | .flags = GENL_ADMIN_PERM, | |
11426 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11427 | NL80211_FLAG_NEED_RTNL, | |
11428 | }, | |
960d01ac JB |
11429 | { |
11430 | .cmd = NL80211_CMD_ADD_TX_TS, | |
11431 | .doit = nl80211_add_tx_ts, | |
11432 | .policy = nl80211_policy, | |
11433 | .flags = GENL_ADMIN_PERM, | |
11434 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11435 | NL80211_FLAG_NEED_RTNL, | |
11436 | }, | |
11437 | { | |
11438 | .cmd = NL80211_CMD_DEL_TX_TS, | |
11439 | .doit = nl80211_del_tx_ts, | |
11440 | .policy = nl80211_policy, | |
11441 | .flags = GENL_ADMIN_PERM, | |
11442 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11443 | NL80211_FLAG_NEED_RTNL, | |
11444 | }, | |
1057d35e AN |
11445 | { |
11446 | .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH, | |
11447 | .doit = nl80211_tdls_channel_switch, | |
11448 | .policy = nl80211_policy, | |
11449 | .flags = GENL_ADMIN_PERM, | |
11450 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11451 | NL80211_FLAG_NEED_RTNL, | |
11452 | }, | |
11453 | { | |
11454 | .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH, | |
11455 | .doit = nl80211_tdls_cancel_channel_switch, | |
11456 | .policy = nl80211_policy, | |
11457 | .flags = GENL_ADMIN_PERM, | |
11458 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11459 | NL80211_FLAG_NEED_RTNL, | |
11460 | }, | |
55682965 | 11461 | }; |
9588bbd5 | 11462 | |
55682965 JB |
11463 | /* notification functions */ |
11464 | ||
3bb20556 JB |
11465 | void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev, |
11466 | enum nl80211_commands cmd) | |
55682965 JB |
11467 | { |
11468 | struct sk_buff *msg; | |
86e8cf98 | 11469 | struct nl80211_dump_wiphy_state state = {}; |
55682965 | 11470 | |
3bb20556 JB |
11471 | WARN_ON(cmd != NL80211_CMD_NEW_WIPHY && |
11472 | cmd != NL80211_CMD_DEL_WIPHY); | |
11473 | ||
fd2120ca | 11474 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
11475 | if (!msg) |
11476 | return; | |
11477 | ||
3bb20556 | 11478 | if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) { |
55682965 JB |
11479 | nlmsg_free(msg); |
11480 | return; | |
11481 | } | |
11482 | ||
68eb5503 | 11483 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11484 | NL80211_MCGRP_CONFIG, GFP_KERNEL); |
55682965 JB |
11485 | } |
11486 | ||
362a415d JB |
11487 | static int nl80211_add_scan_req(struct sk_buff *msg, |
11488 | struct cfg80211_registered_device *rdev) | |
11489 | { | |
11490 | struct cfg80211_scan_request *req = rdev->scan_req; | |
11491 | struct nlattr *nest; | |
11492 | int i; | |
11493 | ||
11494 | if (WARN_ON(!req)) | |
11495 | return 0; | |
11496 | ||
11497 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
11498 | if (!nest) | |
11499 | goto nla_put_failure; | |
9360ffd1 DM |
11500 | for (i = 0; i < req->n_ssids; i++) { |
11501 | if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid)) | |
11502 | goto nla_put_failure; | |
11503 | } | |
362a415d JB |
11504 | nla_nest_end(msg, nest); |
11505 | ||
11506 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
11507 | if (!nest) | |
11508 | goto nla_put_failure; | |
9360ffd1 DM |
11509 | for (i = 0; i < req->n_channels; i++) { |
11510 | if (nla_put_u32(msg, i, req->channels[i]->center_freq)) | |
11511 | goto nla_put_failure; | |
11512 | } | |
362a415d JB |
11513 | nla_nest_end(msg, nest); |
11514 | ||
9360ffd1 DM |
11515 | if (req->ie && |
11516 | nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie)) | |
11517 | goto nla_put_failure; | |
362a415d | 11518 | |
ae917c9f JB |
11519 | if (req->flags && |
11520 | nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags)) | |
11521 | goto nla_put_failure; | |
ed473771 | 11522 | |
362a415d JB |
11523 | return 0; |
11524 | nla_put_failure: | |
11525 | return -ENOBUFS; | |
11526 | } | |
11527 | ||
a538e2d5 JB |
11528 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
11529 | struct cfg80211_registered_device *rdev, | |
fd014284 | 11530 | struct wireless_dev *wdev, |
15e47304 | 11531 | u32 portid, u32 seq, int flags, |
a538e2d5 | 11532 | u32 cmd) |
2a519311 JB |
11533 | { |
11534 | void *hdr; | |
11535 | ||
15e47304 | 11536 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
2a519311 JB |
11537 | if (!hdr) |
11538 | return -1; | |
11539 | ||
9360ffd1 | 11540 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
fd014284 JB |
11541 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
11542 | wdev->netdev->ifindex)) || | |
11543 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
9360ffd1 | 11544 | goto nla_put_failure; |
2a519311 | 11545 | |
362a415d JB |
11546 | /* ignore errors and send incomplete event anyway */ |
11547 | nl80211_add_scan_req(msg, rdev); | |
2a519311 | 11548 | |
053c095a JB |
11549 | genlmsg_end(msg, hdr); |
11550 | return 0; | |
2a519311 JB |
11551 | |
11552 | nla_put_failure: | |
11553 | genlmsg_cancel(msg, hdr); | |
11554 | return -EMSGSIZE; | |
11555 | } | |
11556 | ||
807f8a8c LC |
11557 | static int |
11558 | nl80211_send_sched_scan_msg(struct sk_buff *msg, | |
11559 | struct cfg80211_registered_device *rdev, | |
11560 | struct net_device *netdev, | |
15e47304 | 11561 | u32 portid, u32 seq, int flags, u32 cmd) |
807f8a8c LC |
11562 | { |
11563 | void *hdr; | |
11564 | ||
15e47304 | 11565 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
807f8a8c LC |
11566 | if (!hdr) |
11567 | return -1; | |
11568 | ||
9360ffd1 DM |
11569 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11570 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
11571 | goto nla_put_failure; | |
807f8a8c | 11572 | |
053c095a JB |
11573 | genlmsg_end(msg, hdr); |
11574 | return 0; | |
807f8a8c LC |
11575 | |
11576 | nla_put_failure: | |
11577 | genlmsg_cancel(msg, hdr); | |
11578 | return -EMSGSIZE; | |
11579 | } | |
11580 | ||
a538e2d5 | 11581 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
fd014284 | 11582 | struct wireless_dev *wdev) |
a538e2d5 JB |
11583 | { |
11584 | struct sk_buff *msg; | |
11585 | ||
58050fce | 11586 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
a538e2d5 JB |
11587 | if (!msg) |
11588 | return; | |
11589 | ||
fd014284 | 11590 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
a538e2d5 JB |
11591 | NL80211_CMD_TRIGGER_SCAN) < 0) { |
11592 | nlmsg_free(msg); | |
11593 | return; | |
11594 | } | |
11595 | ||
68eb5503 | 11596 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11597 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
a538e2d5 JB |
11598 | } |
11599 | ||
f9d15d16 JB |
11600 | struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev, |
11601 | struct wireless_dev *wdev, bool aborted) | |
2a519311 JB |
11602 | { |
11603 | struct sk_buff *msg; | |
11604 | ||
fd2120ca | 11605 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 | 11606 | if (!msg) |
f9d15d16 | 11607 | return NULL; |
2a519311 | 11608 | |
fd014284 | 11609 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
f9d15d16 JB |
11610 | aborted ? NL80211_CMD_SCAN_ABORTED : |
11611 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 | 11612 | nlmsg_free(msg); |
f9d15d16 | 11613 | return NULL; |
2a519311 JB |
11614 | } |
11615 | ||
f9d15d16 | 11616 | return msg; |
2a519311 JB |
11617 | } |
11618 | ||
f9d15d16 JB |
11619 | void nl80211_send_scan_result(struct cfg80211_registered_device *rdev, |
11620 | struct sk_buff *msg) | |
2a519311 | 11621 | { |
2a519311 JB |
11622 | if (!msg) |
11623 | return; | |
11624 | ||
68eb5503 | 11625 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11626 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
2a519311 JB |
11627 | } |
11628 | ||
807f8a8c LC |
11629 | void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, |
11630 | struct net_device *netdev) | |
11631 | { | |
11632 | struct sk_buff *msg; | |
11633 | ||
11634 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11635 | if (!msg) | |
11636 | return; | |
11637 | ||
11638 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
11639 | NL80211_CMD_SCHED_SCAN_RESULTS) < 0) { | |
11640 | nlmsg_free(msg); | |
11641 | return; | |
11642 | } | |
11643 | ||
68eb5503 | 11644 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11645 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
807f8a8c LC |
11646 | } |
11647 | ||
11648 | void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, | |
11649 | struct net_device *netdev, u32 cmd) | |
11650 | { | |
11651 | struct sk_buff *msg; | |
11652 | ||
58050fce | 11653 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
807f8a8c LC |
11654 | if (!msg) |
11655 | return; | |
11656 | ||
11657 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) { | |
11658 | nlmsg_free(msg); | |
11659 | return; | |
11660 | } | |
11661 | ||
68eb5503 | 11662 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11663 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
807f8a8c LC |
11664 | } |
11665 | ||
b0d7aa59 JD |
11666 | static bool nl80211_reg_change_event_fill(struct sk_buff *msg, |
11667 | struct regulatory_request *request) | |
73d54c9e | 11668 | { |
73d54c9e | 11669 | /* Userspace can always count this one always being set */ |
9360ffd1 DM |
11670 | if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator)) |
11671 | goto nla_put_failure; | |
11672 | ||
11673 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') { | |
11674 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
11675 | NL80211_REGDOM_TYPE_WORLD)) | |
11676 | goto nla_put_failure; | |
11677 | } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') { | |
11678 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
11679 | NL80211_REGDOM_TYPE_CUSTOM_WORLD)) | |
11680 | goto nla_put_failure; | |
11681 | } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
11682 | request->intersect) { | |
11683 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
11684 | NL80211_REGDOM_TYPE_INTERSECTION)) | |
11685 | goto nla_put_failure; | |
11686 | } else { | |
11687 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
11688 | NL80211_REGDOM_TYPE_COUNTRY) || | |
11689 | nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, | |
11690 | request->alpha2)) | |
11691 | goto nla_put_failure; | |
11692 | } | |
11693 | ||
ad30ca2c AN |
11694 | if (request->wiphy_idx != WIPHY_IDX_INVALID) { |
11695 | struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx); | |
11696 | ||
11697 | if (wiphy && | |
11698 | nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx)) | |
11699 | goto nla_put_failure; | |
1bdd716c AN |
11700 | |
11701 | if (wiphy && | |
11702 | wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED && | |
11703 | nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) | |
11704 | goto nla_put_failure; | |
ad30ca2c | 11705 | } |
73d54c9e | 11706 | |
b0d7aa59 JD |
11707 | return true; |
11708 | ||
11709 | nla_put_failure: | |
11710 | return false; | |
11711 | } | |
11712 | ||
11713 | /* | |
11714 | * This can happen on global regulatory changes or device specific settings | |
11715 | * based on custom regulatory domains. | |
11716 | */ | |
11717 | void nl80211_common_reg_change_event(enum nl80211_commands cmd_id, | |
11718 | struct regulatory_request *request) | |
11719 | { | |
11720 | struct sk_buff *msg; | |
11721 | void *hdr; | |
11722 | ||
11723 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11724 | if (!msg) | |
11725 | return; | |
11726 | ||
11727 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id); | |
11728 | if (!hdr) { | |
11729 | nlmsg_free(msg); | |
11730 | return; | |
11731 | } | |
11732 | ||
11733 | if (nl80211_reg_change_event_fill(msg, request) == false) | |
11734 | goto nla_put_failure; | |
11735 | ||
3b7b72ee | 11736 | genlmsg_end(msg, hdr); |
73d54c9e | 11737 | |
bc43b28c | 11738 | rcu_read_lock(); |
68eb5503 | 11739 | genlmsg_multicast_allns(&nl80211_fam, msg, 0, |
2a94fe48 | 11740 | NL80211_MCGRP_REGULATORY, GFP_ATOMIC); |
bc43b28c | 11741 | rcu_read_unlock(); |
73d54c9e LR |
11742 | |
11743 | return; | |
11744 | ||
11745 | nla_put_failure: | |
11746 | genlmsg_cancel(msg, hdr); | |
11747 | nlmsg_free(msg); | |
11748 | } | |
11749 | ||
6039f6d2 JM |
11750 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
11751 | struct net_device *netdev, | |
11752 | const u8 *buf, size_t len, | |
b0b6aa2c EP |
11753 | enum nl80211_commands cmd, gfp_t gfp, |
11754 | int uapsd_queues) | |
6039f6d2 JM |
11755 | { |
11756 | struct sk_buff *msg; | |
11757 | void *hdr; | |
11758 | ||
e6d6e342 | 11759 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
11760 | if (!msg) |
11761 | return; | |
11762 | ||
11763 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
11764 | if (!hdr) { | |
11765 | nlmsg_free(msg); | |
11766 | return; | |
11767 | } | |
11768 | ||
9360ffd1 DM |
11769 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11770 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11771 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
11772 | goto nla_put_failure; | |
6039f6d2 | 11773 | |
b0b6aa2c EP |
11774 | if (uapsd_queues >= 0) { |
11775 | struct nlattr *nla_wmm = | |
11776 | nla_nest_start(msg, NL80211_ATTR_STA_WME); | |
11777 | if (!nla_wmm) | |
11778 | goto nla_put_failure; | |
11779 | ||
11780 | if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES, | |
11781 | uapsd_queues)) | |
11782 | goto nla_put_failure; | |
11783 | ||
11784 | nla_nest_end(msg, nla_wmm); | |
11785 | } | |
11786 | ||
3b7b72ee | 11787 | genlmsg_end(msg, hdr); |
6039f6d2 | 11788 | |
68eb5503 | 11789 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11790 | NL80211_MCGRP_MLME, gfp); |
6039f6d2 JM |
11791 | return; |
11792 | ||
11793 | nla_put_failure: | |
11794 | genlmsg_cancel(msg, hdr); | |
11795 | nlmsg_free(msg); | |
11796 | } | |
11797 | ||
11798 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
11799 | struct net_device *netdev, const u8 *buf, |
11800 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
11801 | { |
11802 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
b0b6aa2c | 11803 | NL80211_CMD_AUTHENTICATE, gfp, -1); |
6039f6d2 JM |
11804 | } |
11805 | ||
11806 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
11807 | struct net_device *netdev, const u8 *buf, | |
b0b6aa2c | 11808 | size_t len, gfp_t gfp, int uapsd_queues) |
6039f6d2 | 11809 | { |
e6d6e342 | 11810 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
b0b6aa2c | 11811 | NL80211_CMD_ASSOCIATE, gfp, uapsd_queues); |
6039f6d2 JM |
11812 | } |
11813 | ||
53b46b84 | 11814 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
11815 | struct net_device *netdev, const u8 *buf, |
11816 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
11817 | { |
11818 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
b0b6aa2c | 11819 | NL80211_CMD_DEAUTHENTICATE, gfp, -1); |
6039f6d2 JM |
11820 | } |
11821 | ||
53b46b84 JM |
11822 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
11823 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 11824 | size_t len, gfp_t gfp) |
6039f6d2 JM |
11825 | { |
11826 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
b0b6aa2c | 11827 | NL80211_CMD_DISASSOCIATE, gfp, -1); |
6039f6d2 JM |
11828 | } |
11829 | ||
6ff57cf8 JB |
11830 | void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf, |
11831 | size_t len) | |
cf4e594e | 11832 | { |
947add36 JB |
11833 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
11834 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 11835 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
6ff57cf8 JB |
11836 | const struct ieee80211_mgmt *mgmt = (void *)buf; |
11837 | u32 cmd; | |
947add36 | 11838 | |
6ff57cf8 JB |
11839 | if (WARN_ON(len < 2)) |
11840 | return; | |
cf4e594e | 11841 | |
6ff57cf8 JB |
11842 | if (ieee80211_is_deauth(mgmt->frame_control)) |
11843 | cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE; | |
11844 | else | |
11845 | cmd = NL80211_CMD_UNPROT_DISASSOCIATE; | |
947add36 | 11846 | |
6ff57cf8 | 11847 | trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len); |
b0b6aa2c | 11848 | nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1); |
cf4e594e | 11849 | } |
6ff57cf8 | 11850 | EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt); |
cf4e594e | 11851 | |
1b06bb40 LR |
11852 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
11853 | struct net_device *netdev, int cmd, | |
e6d6e342 | 11854 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
11855 | { |
11856 | struct sk_buff *msg; | |
11857 | void *hdr; | |
11858 | ||
e6d6e342 | 11859 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
11860 | if (!msg) |
11861 | return; | |
11862 | ||
11863 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
11864 | if (!hdr) { | |
11865 | nlmsg_free(msg); | |
11866 | return; | |
11867 | } | |
11868 | ||
9360ffd1 DM |
11869 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11870 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11871 | nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) || | |
11872 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
11873 | goto nla_put_failure; | |
1965c853 | 11874 | |
3b7b72ee | 11875 | genlmsg_end(msg, hdr); |
1965c853 | 11876 | |
68eb5503 | 11877 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11878 | NL80211_MCGRP_MLME, gfp); |
1965c853 JM |
11879 | return; |
11880 | ||
11881 | nla_put_failure: | |
11882 | genlmsg_cancel(msg, hdr); | |
11883 | nlmsg_free(msg); | |
11884 | } | |
11885 | ||
11886 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
11887 | struct net_device *netdev, const u8 *addr, |
11888 | gfp_t gfp) | |
1965c853 JM |
11889 | { |
11890 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 11891 | addr, gfp); |
1965c853 JM |
11892 | } |
11893 | ||
11894 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
11895 | struct net_device *netdev, const u8 *addr, |
11896 | gfp_t gfp) | |
1965c853 | 11897 | { |
e6d6e342 JB |
11898 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
11899 | addr, gfp); | |
1965c853 JM |
11900 | } |
11901 | ||
b23aa676 SO |
11902 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
11903 | struct net_device *netdev, const u8 *bssid, | |
11904 | const u8 *req_ie, size_t req_ie_len, | |
11905 | const u8 *resp_ie, size_t resp_ie_len, | |
11906 | u16 status, gfp_t gfp) | |
11907 | { | |
11908 | struct sk_buff *msg; | |
11909 | void *hdr; | |
11910 | ||
58050fce | 11911 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
b23aa676 SO |
11912 | if (!msg) |
11913 | return; | |
11914 | ||
11915 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
11916 | if (!hdr) { | |
11917 | nlmsg_free(msg); | |
11918 | return; | |
11919 | } | |
11920 | ||
9360ffd1 DM |
11921 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11922 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11923 | (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) || | |
11924 | nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) || | |
11925 | (req_ie && | |
11926 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
11927 | (resp_ie && | |
11928 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
11929 | goto nla_put_failure; | |
b23aa676 | 11930 | |
3b7b72ee | 11931 | genlmsg_end(msg, hdr); |
b23aa676 | 11932 | |
68eb5503 | 11933 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11934 | NL80211_MCGRP_MLME, gfp); |
b23aa676 SO |
11935 | return; |
11936 | ||
11937 | nla_put_failure: | |
11938 | genlmsg_cancel(msg, hdr); | |
11939 | nlmsg_free(msg); | |
11940 | ||
11941 | } | |
11942 | ||
11943 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
11944 | struct net_device *netdev, const u8 *bssid, | |
11945 | const u8 *req_ie, size_t req_ie_len, | |
11946 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
11947 | { | |
11948 | struct sk_buff *msg; | |
11949 | void *hdr; | |
11950 | ||
58050fce | 11951 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
b23aa676 SO |
11952 | if (!msg) |
11953 | return; | |
11954 | ||
11955 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
11956 | if (!hdr) { | |
11957 | nlmsg_free(msg); | |
11958 | return; | |
11959 | } | |
11960 | ||
9360ffd1 DM |
11961 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11962 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11963 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) || | |
11964 | (req_ie && | |
11965 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
11966 | (resp_ie && | |
11967 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
11968 | goto nla_put_failure; | |
b23aa676 | 11969 | |
3b7b72ee | 11970 | genlmsg_end(msg, hdr); |
b23aa676 | 11971 | |
68eb5503 | 11972 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11973 | NL80211_MCGRP_MLME, gfp); |
b23aa676 SO |
11974 | return; |
11975 | ||
11976 | nla_put_failure: | |
11977 | genlmsg_cancel(msg, hdr); | |
11978 | nlmsg_free(msg); | |
11979 | ||
11980 | } | |
11981 | ||
11982 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
11983 | struct net_device *netdev, u16 reason, | |
667503dd | 11984 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
11985 | { |
11986 | struct sk_buff *msg; | |
11987 | void *hdr; | |
11988 | ||
58050fce | 11989 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
b23aa676 SO |
11990 | if (!msg) |
11991 | return; | |
11992 | ||
11993 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
11994 | if (!hdr) { | |
11995 | nlmsg_free(msg); | |
11996 | return; | |
11997 | } | |
11998 | ||
9360ffd1 DM |
11999 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12000 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12001 | (from_ap && reason && | |
12002 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) || | |
12003 | (from_ap && | |
12004 | nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) || | |
12005 | (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) | |
12006 | goto nla_put_failure; | |
b23aa676 | 12007 | |
3b7b72ee | 12008 | genlmsg_end(msg, hdr); |
b23aa676 | 12009 | |
68eb5503 | 12010 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12011 | NL80211_MCGRP_MLME, GFP_KERNEL); |
b23aa676 SO |
12012 | return; |
12013 | ||
12014 | nla_put_failure: | |
12015 | genlmsg_cancel(msg, hdr); | |
12016 | nlmsg_free(msg); | |
12017 | ||
12018 | } | |
12019 | ||
04a773ad JB |
12020 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
12021 | struct net_device *netdev, const u8 *bssid, | |
12022 | gfp_t gfp) | |
12023 | { | |
12024 | struct sk_buff *msg; | |
12025 | void *hdr; | |
12026 | ||
fd2120ca | 12027 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
12028 | if (!msg) |
12029 | return; | |
12030 | ||
12031 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
12032 | if (!hdr) { | |
12033 | nlmsg_free(msg); | |
12034 | return; | |
12035 | } | |
12036 | ||
9360ffd1 DM |
12037 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12038 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12039 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
12040 | goto nla_put_failure; | |
04a773ad | 12041 | |
3b7b72ee | 12042 | genlmsg_end(msg, hdr); |
04a773ad | 12043 | |
68eb5503 | 12044 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12045 | NL80211_MCGRP_MLME, gfp); |
04a773ad JB |
12046 | return; |
12047 | ||
12048 | nla_put_failure: | |
12049 | genlmsg_cancel(msg, hdr); | |
12050 | nlmsg_free(msg); | |
12051 | } | |
12052 | ||
947add36 JB |
12053 | void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr, |
12054 | const u8* ie, u8 ie_len, gfp_t gfp) | |
c93b5e71 | 12055 | { |
947add36 | 12056 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 12057 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
c93b5e71 JC |
12058 | struct sk_buff *msg; |
12059 | void *hdr; | |
12060 | ||
947add36 JB |
12061 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT)) |
12062 | return; | |
12063 | ||
12064 | trace_cfg80211_notify_new_peer_candidate(dev, addr); | |
12065 | ||
c93b5e71 JC |
12066 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
12067 | if (!msg) | |
12068 | return; | |
12069 | ||
12070 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE); | |
12071 | if (!hdr) { | |
12072 | nlmsg_free(msg); | |
12073 | return; | |
12074 | } | |
12075 | ||
9360ffd1 | 12076 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
947add36 JB |
12077 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
12078 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
9360ffd1 DM |
12079 | (ie_len && ie && |
12080 | nla_put(msg, NL80211_ATTR_IE, ie_len , ie))) | |
12081 | goto nla_put_failure; | |
c93b5e71 | 12082 | |
3b7b72ee | 12083 | genlmsg_end(msg, hdr); |
c93b5e71 | 12084 | |
68eb5503 | 12085 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12086 | NL80211_MCGRP_MLME, gfp); |
c93b5e71 JC |
12087 | return; |
12088 | ||
12089 | nla_put_failure: | |
12090 | genlmsg_cancel(msg, hdr); | |
12091 | nlmsg_free(msg); | |
12092 | } | |
947add36 | 12093 | EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate); |
c93b5e71 | 12094 | |
a3b8b056 JM |
12095 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
12096 | struct net_device *netdev, const u8 *addr, | |
12097 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 12098 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
12099 | { |
12100 | struct sk_buff *msg; | |
12101 | void *hdr; | |
12102 | ||
e6d6e342 | 12103 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
12104 | if (!msg) |
12105 | return; | |
12106 | ||
12107 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
12108 | if (!hdr) { | |
12109 | nlmsg_free(msg); | |
12110 | return; | |
12111 | } | |
12112 | ||
9360ffd1 DM |
12113 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12114 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12115 | (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || | |
12116 | nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) || | |
12117 | (key_id != -1 && | |
12118 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) || | |
12119 | (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc))) | |
12120 | goto nla_put_failure; | |
a3b8b056 | 12121 | |
3b7b72ee | 12122 | genlmsg_end(msg, hdr); |
a3b8b056 | 12123 | |
68eb5503 | 12124 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12125 | NL80211_MCGRP_MLME, gfp); |
a3b8b056 JM |
12126 | return; |
12127 | ||
12128 | nla_put_failure: | |
12129 | genlmsg_cancel(msg, hdr); | |
12130 | nlmsg_free(msg); | |
12131 | } | |
12132 | ||
6bad8766 LR |
12133 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
12134 | struct ieee80211_channel *channel_before, | |
12135 | struct ieee80211_channel *channel_after) | |
12136 | { | |
12137 | struct sk_buff *msg; | |
12138 | void *hdr; | |
12139 | struct nlattr *nl_freq; | |
12140 | ||
fd2120ca | 12141 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
12142 | if (!msg) |
12143 | return; | |
12144 | ||
12145 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
12146 | if (!hdr) { | |
12147 | nlmsg_free(msg); | |
12148 | return; | |
12149 | } | |
12150 | ||
12151 | /* | |
12152 | * Since we are applying the beacon hint to a wiphy we know its | |
12153 | * wiphy_idx is valid | |
12154 | */ | |
9360ffd1 DM |
12155 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) |
12156 | goto nla_put_failure; | |
6bad8766 LR |
12157 | |
12158 | /* Before */ | |
12159 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
12160 | if (!nl_freq) | |
12161 | goto nla_put_failure; | |
cdc89b97 | 12162 | if (nl80211_msg_put_channel(msg, channel_before, false)) |
6bad8766 LR |
12163 | goto nla_put_failure; |
12164 | nla_nest_end(msg, nl_freq); | |
12165 | ||
12166 | /* After */ | |
12167 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
12168 | if (!nl_freq) | |
12169 | goto nla_put_failure; | |
cdc89b97 | 12170 | if (nl80211_msg_put_channel(msg, channel_after, false)) |
6bad8766 LR |
12171 | goto nla_put_failure; |
12172 | nla_nest_end(msg, nl_freq); | |
12173 | ||
3b7b72ee | 12174 | genlmsg_end(msg, hdr); |
6bad8766 | 12175 | |
463d0183 | 12176 | rcu_read_lock(); |
68eb5503 | 12177 | genlmsg_multicast_allns(&nl80211_fam, msg, 0, |
2a94fe48 | 12178 | NL80211_MCGRP_REGULATORY, GFP_ATOMIC); |
463d0183 | 12179 | rcu_read_unlock(); |
6bad8766 LR |
12180 | |
12181 | return; | |
12182 | ||
12183 | nla_put_failure: | |
12184 | genlmsg_cancel(msg, hdr); | |
12185 | nlmsg_free(msg); | |
12186 | } | |
12187 | ||
9588bbd5 JM |
12188 | static void nl80211_send_remain_on_chan_event( |
12189 | int cmd, struct cfg80211_registered_device *rdev, | |
71bbc994 | 12190 | struct wireless_dev *wdev, u64 cookie, |
9588bbd5 | 12191 | struct ieee80211_channel *chan, |
9588bbd5 JM |
12192 | unsigned int duration, gfp_t gfp) |
12193 | { | |
12194 | struct sk_buff *msg; | |
12195 | void *hdr; | |
12196 | ||
12197 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12198 | if (!msg) | |
12199 | return; | |
12200 | ||
12201 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
12202 | if (!hdr) { | |
12203 | nlmsg_free(msg); | |
12204 | return; | |
12205 | } | |
12206 | ||
9360ffd1 | 12207 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
12208 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
12209 | wdev->netdev->ifindex)) || | |
00f53350 | 12210 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
9360ffd1 | 12211 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) || |
42d97a59 JB |
12212 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
12213 | NL80211_CHAN_NO_HT) || | |
9360ffd1 DM |
12214 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
12215 | goto nla_put_failure; | |
9588bbd5 | 12216 | |
9360ffd1 DM |
12217 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL && |
12218 | nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) | |
12219 | goto nla_put_failure; | |
9588bbd5 | 12220 | |
3b7b72ee | 12221 | genlmsg_end(msg, hdr); |
9588bbd5 | 12222 | |
68eb5503 | 12223 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12224 | NL80211_MCGRP_MLME, gfp); |
9588bbd5 JM |
12225 | return; |
12226 | ||
12227 | nla_put_failure: | |
12228 | genlmsg_cancel(msg, hdr); | |
12229 | nlmsg_free(msg); | |
12230 | } | |
12231 | ||
947add36 JB |
12232 | void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, |
12233 | struct ieee80211_channel *chan, | |
12234 | unsigned int duration, gfp_t gfp) | |
9588bbd5 | 12235 | { |
947add36 | 12236 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 12237 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 JB |
12238 | |
12239 | trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration); | |
9588bbd5 | 12240 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, |
71bbc994 | 12241 | rdev, wdev, cookie, chan, |
42d97a59 | 12242 | duration, gfp); |
9588bbd5 | 12243 | } |
947add36 | 12244 | EXPORT_SYMBOL(cfg80211_ready_on_channel); |
9588bbd5 | 12245 | |
947add36 JB |
12246 | void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, |
12247 | struct ieee80211_channel *chan, | |
12248 | gfp_t gfp) | |
9588bbd5 | 12249 | { |
947add36 | 12250 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 12251 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 JB |
12252 | |
12253 | trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan); | |
9588bbd5 | 12254 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, |
42d97a59 | 12255 | rdev, wdev, cookie, chan, 0, gfp); |
9588bbd5 | 12256 | } |
947add36 | 12257 | EXPORT_SYMBOL(cfg80211_remain_on_channel_expired); |
9588bbd5 | 12258 | |
947add36 JB |
12259 | void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, |
12260 | struct station_info *sinfo, gfp_t gfp) | |
98b62183 | 12261 | { |
947add36 | 12262 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
f26cbf40 | 12263 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
98b62183 JB |
12264 | struct sk_buff *msg; |
12265 | ||
947add36 JB |
12266 | trace_cfg80211_new_sta(dev, mac_addr, sinfo); |
12267 | ||
58050fce | 12268 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
98b62183 JB |
12269 | if (!msg) |
12270 | return; | |
12271 | ||
cf5ead82 | 12272 | if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0, |
66266b3a | 12273 | rdev, dev, mac_addr, sinfo) < 0) { |
98b62183 JB |
12274 | nlmsg_free(msg); |
12275 | return; | |
12276 | } | |
12277 | ||
68eb5503 | 12278 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12279 | NL80211_MCGRP_MLME, gfp); |
98b62183 | 12280 | } |
947add36 | 12281 | EXPORT_SYMBOL(cfg80211_new_sta); |
98b62183 | 12282 | |
cf5ead82 JB |
12283 | void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr, |
12284 | struct station_info *sinfo, gfp_t gfp) | |
ec15e68b | 12285 | { |
947add36 | 12286 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
f26cbf40 | 12287 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
ec15e68b | 12288 | struct sk_buff *msg; |
cf5ead82 JB |
12289 | struct station_info empty_sinfo = {}; |
12290 | ||
12291 | if (!sinfo) | |
12292 | sinfo = &empty_sinfo; | |
ec15e68b | 12293 | |
947add36 JB |
12294 | trace_cfg80211_del_sta(dev, mac_addr); |
12295 | ||
58050fce | 12296 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
ec15e68b JM |
12297 | if (!msg) |
12298 | return; | |
12299 | ||
cf5ead82 | 12300 | if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0, |
57007121 | 12301 | rdev, dev, mac_addr, sinfo) < 0) { |
ec15e68b JM |
12302 | nlmsg_free(msg); |
12303 | return; | |
12304 | } | |
12305 | ||
68eb5503 | 12306 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12307 | NL80211_MCGRP_MLME, gfp); |
ec15e68b | 12308 | } |
cf5ead82 | 12309 | EXPORT_SYMBOL(cfg80211_del_sta_sinfo); |
ec15e68b | 12310 | |
947add36 JB |
12311 | void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, |
12312 | enum nl80211_connect_failed_reason reason, | |
12313 | gfp_t gfp) | |
ed44a951 | 12314 | { |
947add36 | 12315 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
f26cbf40 | 12316 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
ed44a951 PP |
12317 | struct sk_buff *msg; |
12318 | void *hdr; | |
12319 | ||
12320 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
12321 | if (!msg) | |
12322 | return; | |
12323 | ||
12324 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED); | |
12325 | if (!hdr) { | |
12326 | nlmsg_free(msg); | |
12327 | return; | |
12328 | } | |
12329 | ||
12330 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
12331 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
12332 | nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason)) | |
12333 | goto nla_put_failure; | |
12334 | ||
12335 | genlmsg_end(msg, hdr); | |
12336 | ||
68eb5503 | 12337 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12338 | NL80211_MCGRP_MLME, gfp); |
ed44a951 PP |
12339 | return; |
12340 | ||
12341 | nla_put_failure: | |
12342 | genlmsg_cancel(msg, hdr); | |
12343 | nlmsg_free(msg); | |
12344 | } | |
947add36 | 12345 | EXPORT_SYMBOL(cfg80211_conn_failed); |
ed44a951 | 12346 | |
b92ab5d8 JB |
12347 | static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, |
12348 | const u8 *addr, gfp_t gfp) | |
28946da7 JB |
12349 | { |
12350 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 12351 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
28946da7 JB |
12352 | struct sk_buff *msg; |
12353 | void *hdr; | |
15e47304 | 12354 | u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid); |
28946da7 | 12355 | |
15e47304 | 12356 | if (!nlportid) |
28946da7 JB |
12357 | return false; |
12358 | ||
12359 | msg = nlmsg_new(100, gfp); | |
12360 | if (!msg) | |
12361 | return true; | |
12362 | ||
b92ab5d8 | 12363 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
28946da7 JB |
12364 | if (!hdr) { |
12365 | nlmsg_free(msg); | |
12366 | return true; | |
12367 | } | |
12368 | ||
9360ffd1 DM |
12369 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12370 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
12371 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
12372 | goto nla_put_failure; | |
28946da7 | 12373 | |
9c90a9f6 | 12374 | genlmsg_end(msg, hdr); |
15e47304 | 12375 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
28946da7 JB |
12376 | return true; |
12377 | ||
12378 | nla_put_failure: | |
12379 | genlmsg_cancel(msg, hdr); | |
12380 | nlmsg_free(msg); | |
12381 | return true; | |
12382 | } | |
12383 | ||
947add36 JB |
12384 | bool cfg80211_rx_spurious_frame(struct net_device *dev, |
12385 | const u8 *addr, gfp_t gfp) | |
b92ab5d8 | 12386 | { |
947add36 JB |
12387 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
12388 | bool ret; | |
12389 | ||
12390 | trace_cfg80211_rx_spurious_frame(dev, addr); | |
12391 | ||
12392 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && | |
12393 | wdev->iftype != NL80211_IFTYPE_P2P_GO)) { | |
12394 | trace_cfg80211_return_bool(false); | |
12395 | return false; | |
12396 | } | |
12397 | ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME, | |
12398 | addr, gfp); | |
12399 | trace_cfg80211_return_bool(ret); | |
12400 | return ret; | |
b92ab5d8 | 12401 | } |
947add36 | 12402 | EXPORT_SYMBOL(cfg80211_rx_spurious_frame); |
b92ab5d8 | 12403 | |
947add36 JB |
12404 | bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev, |
12405 | const u8 *addr, gfp_t gfp) | |
b92ab5d8 | 12406 | { |
947add36 JB |
12407 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
12408 | bool ret; | |
12409 | ||
12410 | trace_cfg80211_rx_unexpected_4addr_frame(dev, addr); | |
12411 | ||
12412 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && | |
12413 | wdev->iftype != NL80211_IFTYPE_P2P_GO && | |
12414 | wdev->iftype != NL80211_IFTYPE_AP_VLAN)) { | |
12415 | trace_cfg80211_return_bool(false); | |
12416 | return false; | |
12417 | } | |
12418 | ret = __nl80211_unexpected_frame(dev, | |
12419 | NL80211_CMD_UNEXPECTED_4ADDR_FRAME, | |
12420 | addr, gfp); | |
12421 | trace_cfg80211_return_bool(ret); | |
12422 | return ret; | |
b92ab5d8 | 12423 | } |
947add36 | 12424 | EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame); |
b92ab5d8 | 12425 | |
2e161f78 | 12426 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
15e47304 | 12427 | struct wireless_dev *wdev, u32 nlportid, |
804483e9 | 12428 | int freq, int sig_dbm, |
19504cf5 | 12429 | const u8 *buf, size_t len, u32 flags, gfp_t gfp) |
026331c4 | 12430 | { |
71bbc994 | 12431 | struct net_device *netdev = wdev->netdev; |
026331c4 JM |
12432 | struct sk_buff *msg; |
12433 | void *hdr; | |
026331c4 JM |
12434 | |
12435 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12436 | if (!msg) | |
12437 | return -ENOMEM; | |
12438 | ||
2e161f78 | 12439 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
12440 | if (!hdr) { |
12441 | nlmsg_free(msg); | |
12442 | return -ENOMEM; | |
12443 | } | |
12444 | ||
9360ffd1 | 12445 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
12446 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
12447 | netdev->ifindex)) || | |
a838490b | 12448 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
9360ffd1 DM |
12449 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || |
12450 | (sig_dbm && | |
12451 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
19504cf5 VK |
12452 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || |
12453 | (flags && | |
12454 | nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags))) | |
9360ffd1 | 12455 | goto nla_put_failure; |
026331c4 | 12456 | |
3b7b72ee | 12457 | genlmsg_end(msg, hdr); |
026331c4 | 12458 | |
15e47304 | 12459 | return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
026331c4 JM |
12460 | |
12461 | nla_put_failure: | |
12462 | genlmsg_cancel(msg, hdr); | |
12463 | nlmsg_free(msg); | |
12464 | return -ENOBUFS; | |
12465 | } | |
12466 | ||
947add36 JB |
12467 | void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, |
12468 | const u8 *buf, size_t len, bool ack, gfp_t gfp) | |
026331c4 | 12469 | { |
947add36 | 12470 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 12471 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
71bbc994 | 12472 | struct net_device *netdev = wdev->netdev; |
026331c4 JM |
12473 | struct sk_buff *msg; |
12474 | void *hdr; | |
12475 | ||
947add36 JB |
12476 | trace_cfg80211_mgmt_tx_status(wdev, cookie, ack); |
12477 | ||
026331c4 JM |
12478 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
12479 | if (!msg) | |
12480 | return; | |
12481 | ||
2e161f78 | 12482 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
12483 | if (!hdr) { |
12484 | nlmsg_free(msg); | |
12485 | return; | |
12486 | } | |
12487 | ||
9360ffd1 | 12488 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
12489 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
12490 | netdev->ifindex)) || | |
a838490b | 12491 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
9360ffd1 DM |
12492 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || |
12493 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
12494 | (ack && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
12495 | goto nla_put_failure; | |
026331c4 | 12496 | |
3b7b72ee | 12497 | genlmsg_end(msg, hdr); |
026331c4 | 12498 | |
68eb5503 | 12499 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12500 | NL80211_MCGRP_MLME, gfp); |
026331c4 JM |
12501 | return; |
12502 | ||
12503 | nla_put_failure: | |
12504 | genlmsg_cancel(msg, hdr); | |
12505 | nlmsg_free(msg); | |
12506 | } | |
947add36 | 12507 | EXPORT_SYMBOL(cfg80211_mgmt_tx_status); |
026331c4 | 12508 | |
5b97f49d JB |
12509 | static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev, |
12510 | const char *mac, gfp_t gfp) | |
d6dc1a38 | 12511 | { |
947add36 | 12512 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
5b97f49d JB |
12513 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
12514 | struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12515 | void **cb; | |
947add36 | 12516 | |
d6dc1a38 | 12517 | if (!msg) |
5b97f49d | 12518 | return NULL; |
d6dc1a38 | 12519 | |
5b97f49d JB |
12520 | cb = (void **)msg->cb; |
12521 | ||
12522 | cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
12523 | if (!cb[0]) { | |
d6dc1a38 | 12524 | nlmsg_free(msg); |
5b97f49d | 12525 | return NULL; |
d6dc1a38 JO |
12526 | } |
12527 | ||
9360ffd1 | 12528 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
947add36 | 12529 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
9360ffd1 | 12530 | goto nla_put_failure; |
d6dc1a38 | 12531 | |
5b97f49d | 12532 | if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac)) |
d6dc1a38 JO |
12533 | goto nla_put_failure; |
12534 | ||
5b97f49d JB |
12535 | cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM); |
12536 | if (!cb[1]) | |
9360ffd1 | 12537 | goto nla_put_failure; |
d6dc1a38 | 12538 | |
5b97f49d | 12539 | cb[2] = rdev; |
d6dc1a38 | 12540 | |
5b97f49d JB |
12541 | return msg; |
12542 | nla_put_failure: | |
12543 | nlmsg_free(msg); | |
12544 | return NULL; | |
12545 | } | |
12546 | ||
12547 | static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp) | |
12548 | { | |
12549 | void **cb = (void **)msg->cb; | |
12550 | struct cfg80211_registered_device *rdev = cb[2]; | |
12551 | ||
12552 | nla_nest_end(msg, cb[1]); | |
12553 | genlmsg_end(msg, cb[0]); | |
12554 | ||
12555 | memset(msg->cb, 0, sizeof(msg->cb)); | |
d6dc1a38 | 12556 | |
68eb5503 | 12557 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12558 | NL80211_MCGRP_MLME, gfp); |
5b97f49d JB |
12559 | } |
12560 | ||
12561 | void cfg80211_cqm_rssi_notify(struct net_device *dev, | |
12562 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
12563 | gfp_t gfp) | |
12564 | { | |
12565 | struct sk_buff *msg; | |
12566 | ||
12567 | trace_cfg80211_cqm_rssi_notify(dev, rssi_event); | |
12568 | ||
98f03342 JB |
12569 | if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW && |
12570 | rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH)) | |
12571 | return; | |
12572 | ||
5b97f49d JB |
12573 | msg = cfg80211_prepare_cqm(dev, NULL, gfp); |
12574 | if (!msg) | |
12575 | return; | |
12576 | ||
12577 | if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, | |
12578 | rssi_event)) | |
12579 | goto nla_put_failure; | |
12580 | ||
12581 | cfg80211_send_cqm(msg, gfp); | |
12582 | ||
d6dc1a38 JO |
12583 | return; |
12584 | ||
12585 | nla_put_failure: | |
d6dc1a38 JO |
12586 | nlmsg_free(msg); |
12587 | } | |
947add36 | 12588 | EXPORT_SYMBOL(cfg80211_cqm_rssi_notify); |
d6dc1a38 | 12589 | |
5b97f49d JB |
12590 | void cfg80211_cqm_txe_notify(struct net_device *dev, |
12591 | const u8 *peer, u32 num_packets, | |
12592 | u32 rate, u32 intvl, gfp_t gfp) | |
12593 | { | |
12594 | struct sk_buff *msg; | |
12595 | ||
12596 | msg = cfg80211_prepare_cqm(dev, peer, gfp); | |
12597 | if (!msg) | |
12598 | return; | |
12599 | ||
12600 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets)) | |
12601 | goto nla_put_failure; | |
12602 | ||
12603 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate)) | |
12604 | goto nla_put_failure; | |
12605 | ||
12606 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl)) | |
12607 | goto nla_put_failure; | |
12608 | ||
12609 | cfg80211_send_cqm(msg, gfp); | |
12610 | return; | |
12611 | ||
12612 | nla_put_failure: | |
12613 | nlmsg_free(msg); | |
12614 | } | |
12615 | EXPORT_SYMBOL(cfg80211_cqm_txe_notify); | |
12616 | ||
12617 | void cfg80211_cqm_pktloss_notify(struct net_device *dev, | |
12618 | const u8 *peer, u32 num_packets, gfp_t gfp) | |
12619 | { | |
12620 | struct sk_buff *msg; | |
12621 | ||
12622 | trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets); | |
12623 | ||
12624 | msg = cfg80211_prepare_cqm(dev, peer, gfp); | |
12625 | if (!msg) | |
12626 | return; | |
12627 | ||
12628 | if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) | |
12629 | goto nla_put_failure; | |
12630 | ||
12631 | cfg80211_send_cqm(msg, gfp); | |
12632 | return; | |
12633 | ||
12634 | nla_put_failure: | |
12635 | nlmsg_free(msg); | |
12636 | } | |
12637 | EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify); | |
12638 | ||
98f03342 JB |
12639 | void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp) |
12640 | { | |
12641 | struct sk_buff *msg; | |
12642 | ||
12643 | msg = cfg80211_prepare_cqm(dev, NULL, gfp); | |
12644 | if (!msg) | |
12645 | return; | |
12646 | ||
12647 | if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT)) | |
12648 | goto nla_put_failure; | |
12649 | ||
12650 | cfg80211_send_cqm(msg, gfp); | |
12651 | return; | |
12652 | ||
12653 | nla_put_failure: | |
12654 | nlmsg_free(msg); | |
12655 | } | |
12656 | EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify); | |
12657 | ||
947add36 JB |
12658 | static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, |
12659 | struct net_device *netdev, const u8 *bssid, | |
12660 | const u8 *replay_ctr, gfp_t gfp) | |
e5497d76 JB |
12661 | { |
12662 | struct sk_buff *msg; | |
12663 | struct nlattr *rekey_attr; | |
12664 | void *hdr; | |
12665 | ||
58050fce | 12666 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
e5497d76 JB |
12667 | if (!msg) |
12668 | return; | |
12669 | ||
12670 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); | |
12671 | if (!hdr) { | |
12672 | nlmsg_free(msg); | |
12673 | return; | |
12674 | } | |
12675 | ||
9360ffd1 DM |
12676 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12677 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12678 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
12679 | goto nla_put_failure; | |
e5497d76 JB |
12680 | |
12681 | rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); | |
12682 | if (!rekey_attr) | |
12683 | goto nla_put_failure; | |
12684 | ||
9360ffd1 DM |
12685 | if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, |
12686 | NL80211_REPLAY_CTR_LEN, replay_ctr)) | |
12687 | goto nla_put_failure; | |
e5497d76 JB |
12688 | |
12689 | nla_nest_end(msg, rekey_attr); | |
12690 | ||
3b7b72ee | 12691 | genlmsg_end(msg, hdr); |
e5497d76 | 12692 | |
68eb5503 | 12693 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12694 | NL80211_MCGRP_MLME, gfp); |
e5497d76 JB |
12695 | return; |
12696 | ||
12697 | nla_put_failure: | |
12698 | genlmsg_cancel(msg, hdr); | |
12699 | nlmsg_free(msg); | |
12700 | } | |
12701 | ||
947add36 JB |
12702 | void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, |
12703 | const u8 *replay_ctr, gfp_t gfp) | |
12704 | { | |
12705 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12706 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 12707 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 JB |
12708 | |
12709 | trace_cfg80211_gtk_rekey_notify(dev, bssid); | |
12710 | nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp); | |
12711 | } | |
12712 | EXPORT_SYMBOL(cfg80211_gtk_rekey_notify); | |
12713 | ||
12714 | static void | |
12715 | nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev, | |
12716 | struct net_device *netdev, int index, | |
12717 | const u8 *bssid, bool preauth, gfp_t gfp) | |
c9df56b4 JM |
12718 | { |
12719 | struct sk_buff *msg; | |
12720 | struct nlattr *attr; | |
12721 | void *hdr; | |
12722 | ||
58050fce | 12723 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
c9df56b4 JM |
12724 | if (!msg) |
12725 | return; | |
12726 | ||
12727 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE); | |
12728 | if (!hdr) { | |
12729 | nlmsg_free(msg); | |
12730 | return; | |
12731 | } | |
12732 | ||
9360ffd1 DM |
12733 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12734 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
12735 | goto nla_put_failure; | |
c9df56b4 JM |
12736 | |
12737 | attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE); | |
12738 | if (!attr) | |
12739 | goto nla_put_failure; | |
12740 | ||
9360ffd1 DM |
12741 | if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) || |
12742 | nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) || | |
12743 | (preauth && | |
12744 | nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH))) | |
12745 | goto nla_put_failure; | |
c9df56b4 JM |
12746 | |
12747 | nla_nest_end(msg, attr); | |
12748 | ||
3b7b72ee | 12749 | genlmsg_end(msg, hdr); |
c9df56b4 | 12750 | |
68eb5503 | 12751 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12752 | NL80211_MCGRP_MLME, gfp); |
c9df56b4 JM |
12753 | return; |
12754 | ||
12755 | nla_put_failure: | |
12756 | genlmsg_cancel(msg, hdr); | |
12757 | nlmsg_free(msg); | |
12758 | } | |
12759 | ||
947add36 JB |
12760 | void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, |
12761 | const u8 *bssid, bool preauth, gfp_t gfp) | |
12762 | { | |
12763 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12764 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 12765 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 JB |
12766 | |
12767 | trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth); | |
12768 | nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp); | |
12769 | } | |
12770 | EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify); | |
12771 | ||
12772 | static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, | |
12773 | struct net_device *netdev, | |
12774 | struct cfg80211_chan_def *chandef, | |
f8d7552e LC |
12775 | gfp_t gfp, |
12776 | enum nl80211_commands notif, | |
12777 | u8 count) | |
5314526b TP |
12778 | { |
12779 | struct sk_buff *msg; | |
12780 | void *hdr; | |
12781 | ||
58050fce | 12782 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
5314526b TP |
12783 | if (!msg) |
12784 | return; | |
12785 | ||
f8d7552e | 12786 | hdr = nl80211hdr_put(msg, 0, 0, 0, notif); |
5314526b TP |
12787 | if (!hdr) { |
12788 | nlmsg_free(msg); | |
12789 | return; | |
12790 | } | |
12791 | ||
683b6d3b JB |
12792 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) |
12793 | goto nla_put_failure; | |
12794 | ||
12795 | if (nl80211_send_chandef(msg, chandef)) | |
7eab0f64 | 12796 | goto nla_put_failure; |
5314526b | 12797 | |
f8d7552e LC |
12798 | if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) && |
12799 | (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count))) | |
12800 | goto nla_put_failure; | |
12801 | ||
5314526b TP |
12802 | genlmsg_end(msg, hdr); |
12803 | ||
68eb5503 | 12804 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12805 | NL80211_MCGRP_MLME, gfp); |
5314526b TP |
12806 | return; |
12807 | ||
12808 | nla_put_failure: | |
12809 | genlmsg_cancel(msg, hdr); | |
12810 | nlmsg_free(msg); | |
12811 | } | |
12812 | ||
947add36 JB |
12813 | void cfg80211_ch_switch_notify(struct net_device *dev, |
12814 | struct cfg80211_chan_def *chandef) | |
84f10708 | 12815 | { |
947add36 JB |
12816 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
12817 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 12818 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 | 12819 | |
e487eaeb | 12820 | ASSERT_WDEV_LOCK(wdev); |
947add36 | 12821 | |
e487eaeb | 12822 | trace_cfg80211_ch_switch_notify(dev, chandef); |
947add36 | 12823 | |
9e0e2961 | 12824 | wdev->chandef = *chandef; |
96f55f12 | 12825 | wdev->preset_chandef = *chandef; |
f8d7552e LC |
12826 | nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL, |
12827 | NL80211_CMD_CH_SWITCH_NOTIFY, 0); | |
947add36 JB |
12828 | } |
12829 | EXPORT_SYMBOL(cfg80211_ch_switch_notify); | |
12830 | ||
f8d7552e LC |
12831 | void cfg80211_ch_switch_started_notify(struct net_device *dev, |
12832 | struct cfg80211_chan_def *chandef, | |
12833 | u8 count) | |
12834 | { | |
12835 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12836 | struct wiphy *wiphy = wdev->wiphy; | |
12837 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
12838 | ||
12839 | trace_cfg80211_ch_switch_started_notify(dev, chandef); | |
12840 | ||
12841 | nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL, | |
12842 | NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count); | |
12843 | } | |
12844 | EXPORT_SYMBOL(cfg80211_ch_switch_started_notify); | |
12845 | ||
04f39047 SW |
12846 | void |
12847 | nl80211_radar_notify(struct cfg80211_registered_device *rdev, | |
d2859df5 | 12848 | const struct cfg80211_chan_def *chandef, |
04f39047 SW |
12849 | enum nl80211_radar_event event, |
12850 | struct net_device *netdev, gfp_t gfp) | |
12851 | { | |
12852 | struct sk_buff *msg; | |
12853 | void *hdr; | |
12854 | ||
12855 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12856 | if (!msg) | |
12857 | return; | |
12858 | ||
12859 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT); | |
12860 | if (!hdr) { | |
12861 | nlmsg_free(msg); | |
12862 | return; | |
12863 | } | |
12864 | ||
12865 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) | |
12866 | goto nla_put_failure; | |
12867 | ||
12868 | /* NOP and radar events don't need a netdev parameter */ | |
12869 | if (netdev) { | |
12870 | struct wireless_dev *wdev = netdev->ieee80211_ptr; | |
12871 | ||
12872 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12873 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
12874 | goto nla_put_failure; | |
12875 | } | |
12876 | ||
12877 | if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event)) | |
12878 | goto nla_put_failure; | |
12879 | ||
12880 | if (nl80211_send_chandef(msg, chandef)) | |
12881 | goto nla_put_failure; | |
12882 | ||
9c90a9f6 | 12883 | genlmsg_end(msg, hdr); |
04f39047 | 12884 | |
68eb5503 | 12885 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12886 | NL80211_MCGRP_MLME, gfp); |
04f39047 SW |
12887 | return; |
12888 | ||
12889 | nla_put_failure: | |
12890 | genlmsg_cancel(msg, hdr); | |
12891 | nlmsg_free(msg); | |
12892 | } | |
12893 | ||
7f6cf311 JB |
12894 | void cfg80211_probe_status(struct net_device *dev, const u8 *addr, |
12895 | u64 cookie, bool acked, gfp_t gfp) | |
12896 | { | |
12897 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 12898 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
7f6cf311 JB |
12899 | struct sk_buff *msg; |
12900 | void *hdr; | |
7f6cf311 | 12901 | |
4ee3e063 BL |
12902 | trace_cfg80211_probe_status(dev, addr, cookie, acked); |
12903 | ||
58050fce | 12904 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
4ee3e063 | 12905 | |
7f6cf311 JB |
12906 | if (!msg) |
12907 | return; | |
12908 | ||
12909 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT); | |
12910 | if (!hdr) { | |
12911 | nlmsg_free(msg); | |
12912 | return; | |
12913 | } | |
12914 | ||
9360ffd1 DM |
12915 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12916 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
12917 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
12918 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
12919 | (acked && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
12920 | goto nla_put_failure; | |
7f6cf311 | 12921 | |
9c90a9f6 | 12922 | genlmsg_end(msg, hdr); |
7f6cf311 | 12923 | |
68eb5503 | 12924 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12925 | NL80211_MCGRP_MLME, gfp); |
7f6cf311 JB |
12926 | return; |
12927 | ||
12928 | nla_put_failure: | |
12929 | genlmsg_cancel(msg, hdr); | |
12930 | nlmsg_free(msg); | |
12931 | } | |
12932 | EXPORT_SYMBOL(cfg80211_probe_status); | |
12933 | ||
5e760230 JB |
12934 | void cfg80211_report_obss_beacon(struct wiphy *wiphy, |
12935 | const u8 *frame, size_t len, | |
37c73b5f | 12936 | int freq, int sig_dbm) |
5e760230 | 12937 | { |
f26cbf40 | 12938 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
5e760230 JB |
12939 | struct sk_buff *msg; |
12940 | void *hdr; | |
37c73b5f | 12941 | struct cfg80211_beacon_registration *reg; |
5e760230 | 12942 | |
4ee3e063 BL |
12943 | trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm); |
12944 | ||
37c73b5f BG |
12945 | spin_lock_bh(&rdev->beacon_registrations_lock); |
12946 | list_for_each_entry(reg, &rdev->beacon_registrations, list) { | |
12947 | msg = nlmsg_new(len + 100, GFP_ATOMIC); | |
12948 | if (!msg) { | |
12949 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
12950 | return; | |
12951 | } | |
5e760230 | 12952 | |
37c73b5f BG |
12953 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
12954 | if (!hdr) | |
12955 | goto nla_put_failure; | |
5e760230 | 12956 | |
37c73b5f BG |
12957 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12958 | (freq && | |
12959 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) || | |
12960 | (sig_dbm && | |
12961 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
12962 | nla_put(msg, NL80211_ATTR_FRAME, len, frame)) | |
12963 | goto nla_put_failure; | |
5e760230 | 12964 | |
37c73b5f | 12965 | genlmsg_end(msg, hdr); |
5e760230 | 12966 | |
37c73b5f BG |
12967 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid); |
12968 | } | |
12969 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
5e760230 JB |
12970 | return; |
12971 | ||
12972 | nla_put_failure: | |
37c73b5f BG |
12973 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
12974 | if (hdr) | |
12975 | genlmsg_cancel(msg, hdr); | |
5e760230 JB |
12976 | nlmsg_free(msg); |
12977 | } | |
12978 | EXPORT_SYMBOL(cfg80211_report_obss_beacon); | |
12979 | ||
cd8f7cb4 | 12980 | #ifdef CONFIG_PM |
8cd4d456 LC |
12981 | static int cfg80211_net_detect_results(struct sk_buff *msg, |
12982 | struct cfg80211_wowlan_wakeup *wakeup) | |
12983 | { | |
12984 | struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect; | |
12985 | struct nlattr *nl_results, *nl_match, *nl_freqs; | |
12986 | int i, j; | |
12987 | ||
12988 | nl_results = nla_nest_start( | |
12989 | msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS); | |
12990 | if (!nl_results) | |
12991 | return -EMSGSIZE; | |
12992 | ||
12993 | for (i = 0; i < nd->n_matches; i++) { | |
12994 | struct cfg80211_wowlan_nd_match *match = nd->matches[i]; | |
12995 | ||
12996 | nl_match = nla_nest_start(msg, i); | |
12997 | if (!nl_match) | |
12998 | break; | |
12999 | ||
13000 | /* The SSID attribute is optional in nl80211, but for | |
13001 | * simplicity reasons it's always present in the | |
13002 | * cfg80211 structure. If a driver can't pass the | |
13003 | * SSID, that needs to be changed. A zero length SSID | |
13004 | * is still a valid SSID (wildcard), so it cannot be | |
13005 | * used for this purpose. | |
13006 | */ | |
13007 | if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len, | |
13008 | match->ssid.ssid)) { | |
13009 | nla_nest_cancel(msg, nl_match); | |
13010 | goto out; | |
13011 | } | |
13012 | ||
13013 | if (match->n_channels) { | |
13014 | nl_freqs = nla_nest_start( | |
13015 | msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
13016 | if (!nl_freqs) { | |
13017 | nla_nest_cancel(msg, nl_match); | |
13018 | goto out; | |
13019 | } | |
13020 | ||
13021 | for (j = 0; j < match->n_channels; j++) { | |
5528fae8 | 13022 | if (nla_put_u32(msg, j, match->channels[j])) { |
8cd4d456 LC |
13023 | nla_nest_cancel(msg, nl_freqs); |
13024 | nla_nest_cancel(msg, nl_match); | |
13025 | goto out; | |
13026 | } | |
13027 | } | |
13028 | ||
13029 | nla_nest_end(msg, nl_freqs); | |
13030 | } | |
13031 | ||
13032 | nla_nest_end(msg, nl_match); | |
13033 | } | |
13034 | ||
13035 | out: | |
13036 | nla_nest_end(msg, nl_results); | |
13037 | return 0; | |
13038 | } | |
13039 | ||
cd8f7cb4 JB |
13040 | void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, |
13041 | struct cfg80211_wowlan_wakeup *wakeup, | |
13042 | gfp_t gfp) | |
13043 | { | |
f26cbf40 | 13044 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
cd8f7cb4 JB |
13045 | struct sk_buff *msg; |
13046 | void *hdr; | |
9c90a9f6 | 13047 | int size = 200; |
cd8f7cb4 JB |
13048 | |
13049 | trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup); | |
13050 | ||
13051 | if (wakeup) | |
13052 | size += wakeup->packet_present_len; | |
13053 | ||
13054 | msg = nlmsg_new(size, gfp); | |
13055 | if (!msg) | |
13056 | return; | |
13057 | ||
13058 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN); | |
13059 | if (!hdr) | |
13060 | goto free_msg; | |
13061 | ||
13062 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
13063 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
13064 | goto free_msg; | |
13065 | ||
13066 | if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
13067 | wdev->netdev->ifindex)) | |
13068 | goto free_msg; | |
13069 | ||
13070 | if (wakeup) { | |
13071 | struct nlattr *reasons; | |
13072 | ||
13073 | reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
7fa322c8 JB |
13074 | if (!reasons) |
13075 | goto free_msg; | |
cd8f7cb4 JB |
13076 | |
13077 | if (wakeup->disconnect && | |
13078 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) | |
13079 | goto free_msg; | |
13080 | if (wakeup->magic_pkt && | |
13081 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) | |
13082 | goto free_msg; | |
13083 | if (wakeup->gtk_rekey_failure && | |
13084 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) | |
13085 | goto free_msg; | |
13086 | if (wakeup->eap_identity_req && | |
13087 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) | |
13088 | goto free_msg; | |
13089 | if (wakeup->four_way_handshake && | |
13090 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) | |
13091 | goto free_msg; | |
13092 | if (wakeup->rfkill_release && | |
13093 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)) | |
13094 | goto free_msg; | |
13095 | ||
13096 | if (wakeup->pattern_idx >= 0 && | |
13097 | nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, | |
13098 | wakeup->pattern_idx)) | |
13099 | goto free_msg; | |
13100 | ||
ae917c9f JB |
13101 | if (wakeup->tcp_match && |
13102 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH)) | |
13103 | goto free_msg; | |
2a0e047e | 13104 | |
ae917c9f JB |
13105 | if (wakeup->tcp_connlost && |
13106 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST)) | |
13107 | goto free_msg; | |
2a0e047e | 13108 | |
ae917c9f JB |
13109 | if (wakeup->tcp_nomoretokens && |
13110 | nla_put_flag(msg, | |
13111 | NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS)) | |
13112 | goto free_msg; | |
2a0e047e | 13113 | |
cd8f7cb4 JB |
13114 | if (wakeup->packet) { |
13115 | u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211; | |
13116 | u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN; | |
13117 | ||
13118 | if (!wakeup->packet_80211) { | |
13119 | pkt_attr = | |
13120 | NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023; | |
13121 | len_attr = | |
13122 | NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN; | |
13123 | } | |
13124 | ||
13125 | if (wakeup->packet_len && | |
13126 | nla_put_u32(msg, len_attr, wakeup->packet_len)) | |
13127 | goto free_msg; | |
13128 | ||
13129 | if (nla_put(msg, pkt_attr, wakeup->packet_present_len, | |
13130 | wakeup->packet)) | |
13131 | goto free_msg; | |
13132 | } | |
13133 | ||
8cd4d456 LC |
13134 | if (wakeup->net_detect && |
13135 | cfg80211_net_detect_results(msg, wakeup)) | |
13136 | goto free_msg; | |
13137 | ||
cd8f7cb4 JB |
13138 | nla_nest_end(msg, reasons); |
13139 | } | |
13140 | ||
9c90a9f6 | 13141 | genlmsg_end(msg, hdr); |
cd8f7cb4 | 13142 | |
68eb5503 | 13143 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 13144 | NL80211_MCGRP_MLME, gfp); |
cd8f7cb4 JB |
13145 | return; |
13146 | ||
13147 | free_msg: | |
13148 | nlmsg_free(msg); | |
13149 | } | |
13150 | EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup); | |
13151 | #endif | |
13152 | ||
3475b094 JM |
13153 | void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, |
13154 | enum nl80211_tdls_operation oper, | |
13155 | u16 reason_code, gfp_t gfp) | |
13156 | { | |
13157 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 13158 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
3475b094 JM |
13159 | struct sk_buff *msg; |
13160 | void *hdr; | |
3475b094 JM |
13161 | |
13162 | trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper, | |
13163 | reason_code); | |
13164 | ||
13165 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
13166 | if (!msg) | |
13167 | return; | |
13168 | ||
13169 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER); | |
13170 | if (!hdr) { | |
13171 | nlmsg_free(msg); | |
13172 | return; | |
13173 | } | |
13174 | ||
13175 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
13176 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
13177 | nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) || | |
13178 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) || | |
13179 | (reason_code > 0 && | |
13180 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) | |
13181 | goto nla_put_failure; | |
13182 | ||
9c90a9f6 | 13183 | genlmsg_end(msg, hdr); |
3475b094 | 13184 | |
68eb5503 | 13185 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 13186 | NL80211_MCGRP_MLME, gfp); |
3475b094 JM |
13187 | return; |
13188 | ||
13189 | nla_put_failure: | |
13190 | genlmsg_cancel(msg, hdr); | |
13191 | nlmsg_free(msg); | |
13192 | } | |
13193 | EXPORT_SYMBOL(cfg80211_tdls_oper_request); | |
13194 | ||
026331c4 JM |
13195 | static int nl80211_netlink_notify(struct notifier_block * nb, |
13196 | unsigned long state, | |
13197 | void *_notify) | |
13198 | { | |
13199 | struct netlink_notify *notify = _notify; | |
13200 | struct cfg80211_registered_device *rdev; | |
13201 | struct wireless_dev *wdev; | |
37c73b5f | 13202 | struct cfg80211_beacon_registration *reg, *tmp; |
026331c4 JM |
13203 | |
13204 | if (state != NETLINK_URELEASE) | |
13205 | return NOTIFY_DONE; | |
13206 | ||
13207 | rcu_read_lock(); | |
13208 | ||
5e760230 | 13209 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { |
78f22b6a | 13210 | bool schedule_destroy_work = false; |
93a1e86c JR |
13211 | bool schedule_scan_stop = false; |
13212 | struct cfg80211_sched_scan_request *sched_scan_req = | |
13213 | rcu_dereference(rdev->sched_scan_req); | |
13214 | ||
13215 | if (sched_scan_req && notify->portid && | |
13216 | sched_scan_req->owner_nlportid == notify->portid) | |
13217 | schedule_scan_stop = true; | |
78f22b6a JB |
13218 | |
13219 | list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) { | |
15e47304 | 13220 | cfg80211_mlme_unregister_socket(wdev, notify->portid); |
37c73b5f | 13221 | |
78f22b6a JB |
13222 | if (wdev->owner_nlportid == notify->portid) |
13223 | schedule_destroy_work = true; | |
13224 | } | |
13225 | ||
37c73b5f BG |
13226 | spin_lock_bh(&rdev->beacon_registrations_lock); |
13227 | list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations, | |
13228 | list) { | |
13229 | if (reg->nlportid == notify->portid) { | |
13230 | list_del(®->list); | |
13231 | kfree(reg); | |
13232 | break; | |
13233 | } | |
13234 | } | |
13235 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
78f22b6a JB |
13236 | |
13237 | if (schedule_destroy_work) { | |
13238 | struct cfg80211_iface_destroy *destroy; | |
13239 | ||
13240 | destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC); | |
13241 | if (destroy) { | |
13242 | destroy->nlportid = notify->portid; | |
13243 | spin_lock(&rdev->destroy_list_lock); | |
13244 | list_add(&destroy->list, &rdev->destroy_list); | |
13245 | spin_unlock(&rdev->destroy_list_lock); | |
13246 | schedule_work(&rdev->destroy_work); | |
13247 | } | |
93a1e86c JR |
13248 | } else if (schedule_scan_stop) { |
13249 | sched_scan_req->owner_nlportid = 0; | |
13250 | ||
13251 | if (rdev->ops->sched_scan_stop && | |
13252 | rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) | |
13253 | schedule_work(&rdev->sched_scan_stop_wk); | |
78f22b6a | 13254 | } |
5e760230 | 13255 | } |
026331c4 JM |
13256 | |
13257 | rcu_read_unlock(); | |
13258 | ||
05050753 I |
13259 | /* |
13260 | * It is possible that the user space process that is controlling the | |
13261 | * indoor setting disappeared, so notify the regulatory core. | |
13262 | */ | |
13263 | regulatory_netlink_notify(notify->portid); | |
6784c7db | 13264 | return NOTIFY_OK; |
026331c4 JM |
13265 | } |
13266 | ||
13267 | static struct notifier_block nl80211_netlink_notifier = { | |
13268 | .notifier_call = nl80211_netlink_notify, | |
13269 | }; | |
13270 | ||
355199e0 JM |
13271 | void cfg80211_ft_event(struct net_device *netdev, |
13272 | struct cfg80211_ft_event_params *ft_event) | |
13273 | { | |
13274 | struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy; | |
f26cbf40 | 13275 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
355199e0 JM |
13276 | struct sk_buff *msg; |
13277 | void *hdr; | |
355199e0 JM |
13278 | |
13279 | trace_cfg80211_ft_event(wiphy, netdev, ft_event); | |
13280 | ||
13281 | if (!ft_event->target_ap) | |
13282 | return; | |
13283 | ||
13284 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
13285 | if (!msg) | |
13286 | return; | |
13287 | ||
13288 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT); | |
ae917c9f JB |
13289 | if (!hdr) |
13290 | goto out; | |
355199e0 | 13291 | |
ae917c9f JB |
13292 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
13293 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
13294 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap)) | |
13295 | goto out; | |
355199e0 | 13296 | |
ae917c9f JB |
13297 | if (ft_event->ies && |
13298 | nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies)) | |
13299 | goto out; | |
13300 | if (ft_event->ric_ies && | |
13301 | nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len, | |
13302 | ft_event->ric_ies)) | |
13303 | goto out; | |
355199e0 | 13304 | |
9c90a9f6 | 13305 | genlmsg_end(msg, hdr); |
355199e0 | 13306 | |
68eb5503 | 13307 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 13308 | NL80211_MCGRP_MLME, GFP_KERNEL); |
ae917c9f JB |
13309 | return; |
13310 | out: | |
13311 | nlmsg_free(msg); | |
355199e0 JM |
13312 | } |
13313 | EXPORT_SYMBOL(cfg80211_ft_event); | |
13314 | ||
5de17984 AS |
13315 | void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp) |
13316 | { | |
13317 | struct cfg80211_registered_device *rdev; | |
13318 | struct sk_buff *msg; | |
13319 | void *hdr; | |
13320 | u32 nlportid; | |
13321 | ||
f26cbf40 | 13322 | rdev = wiphy_to_rdev(wdev->wiphy); |
5de17984 AS |
13323 | if (!rdev->crit_proto_nlportid) |
13324 | return; | |
13325 | ||
13326 | nlportid = rdev->crit_proto_nlportid; | |
13327 | rdev->crit_proto_nlportid = 0; | |
13328 | ||
13329 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
13330 | if (!msg) | |
13331 | return; | |
13332 | ||
13333 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP); | |
13334 | if (!hdr) | |
13335 | goto nla_put_failure; | |
13336 | ||
13337 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
13338 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
13339 | goto nla_put_failure; | |
13340 | ||
13341 | genlmsg_end(msg, hdr); | |
13342 | ||
13343 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); | |
13344 | return; | |
13345 | ||
13346 | nla_put_failure: | |
13347 | if (hdr) | |
13348 | genlmsg_cancel(msg, hdr); | |
13349 | nlmsg_free(msg); | |
13350 | ||
13351 | } | |
13352 | EXPORT_SYMBOL(cfg80211_crit_proto_stopped); | |
13353 | ||
348baf0e JB |
13354 | void nl80211_send_ap_stopped(struct wireless_dev *wdev) |
13355 | { | |
13356 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 13357 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
348baf0e JB |
13358 | struct sk_buff *msg; |
13359 | void *hdr; | |
13360 | ||
13361 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
13362 | if (!msg) | |
13363 | return; | |
13364 | ||
13365 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP); | |
13366 | if (!hdr) | |
13367 | goto out; | |
13368 | ||
13369 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
13370 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) || | |
13371 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
13372 | goto out; | |
13373 | ||
13374 | genlmsg_end(msg, hdr); | |
13375 | ||
13376 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0, | |
13377 | NL80211_MCGRP_MLME, GFP_KERNEL); | |
13378 | return; | |
13379 | out: | |
13380 | nlmsg_free(msg); | |
13381 | } | |
13382 | ||
55682965 JB |
13383 | /* initialisation/exit functions */ |
13384 | ||
13385 | int nl80211_init(void) | |
13386 | { | |
0d63cbb5 | 13387 | int err; |
55682965 | 13388 | |
2a94fe48 JB |
13389 | err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops, |
13390 | nl80211_mcgrps); | |
55682965 JB |
13391 | if (err) |
13392 | return err; | |
13393 | ||
026331c4 JM |
13394 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
13395 | if (err) | |
13396 | goto err_out; | |
13397 | ||
55682965 JB |
13398 | return 0; |
13399 | err_out: | |
13400 | genl_unregister_family(&nl80211_fam); | |
13401 | return err; | |
13402 | } | |
13403 | ||
13404 | void nl80211_exit(void) | |
13405 | { | |
026331c4 | 13406 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
13407 | genl_unregister_family(&nl80211_fam); |
13408 | } |