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> |
55682965 JB |
5 | */ |
6 | ||
7 | #include <linux/if.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/err.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
55682965 JB |
11 | #include <linux/list.h> |
12 | #include <linux/if_ether.h> | |
13 | #include <linux/ieee80211.h> | |
14 | #include <linux/nl80211.h> | |
15 | #include <linux/rtnetlink.h> | |
16 | #include <linux/netlink.h> | |
2a519311 | 17 | #include <linux/etherdevice.h> |
463d0183 | 18 | #include <net/net_namespace.h> |
55682965 JB |
19 | #include <net/genetlink.h> |
20 | #include <net/cfg80211.h> | |
463d0183 | 21 | #include <net/sock.h> |
55682965 JB |
22 | #include "core.h" |
23 | #include "nl80211.h" | |
b2e1b302 | 24 | #include "reg.h" |
55682965 | 25 | |
5fb628e9 JM |
26 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type); |
27 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, | |
28 | struct genl_info *info, | |
29 | struct cfg80211_crypto_settings *settings, | |
30 | int cipher_limit); | |
31 | ||
4c476991 JB |
32 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, |
33 | struct genl_info *info); | |
34 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
35 | struct genl_info *info); | |
36 | ||
55682965 JB |
37 | /* the netlink family */ |
38 | static struct genl_family nl80211_fam = { | |
39 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
40 | .name = "nl80211", /* have users key off the name instead */ | |
41 | .hdrsize = 0, /* no private header */ | |
42 | .version = 1, /* no particular meaning now */ | |
43 | .maxattr = NL80211_ATTR_MAX, | |
463d0183 | 44 | .netnsok = true, |
4c476991 JB |
45 | .pre_doit = nl80211_pre_doit, |
46 | .post_doit = nl80211_post_doit, | |
55682965 JB |
47 | }; |
48 | ||
79c97e97 | 49 | /* internal helper: get rdev and dev */ |
00918d33 JB |
50 | static int get_rdev_dev_by_ifindex(struct net *netns, struct nlattr **attrs, |
51 | struct cfg80211_registered_device **rdev, | |
52 | struct net_device **dev) | |
55682965 JB |
53 | { |
54 | int ifindex; | |
55 | ||
bba95fef | 56 | if (!attrs[NL80211_ATTR_IFINDEX]) |
55682965 JB |
57 | return -EINVAL; |
58 | ||
bba95fef | 59 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
00918d33 | 60 | *dev = dev_get_by_index(netns, ifindex); |
55682965 JB |
61 | if (!*dev) |
62 | return -ENODEV; | |
63 | ||
00918d33 | 64 | *rdev = cfg80211_get_dev_from_ifindex(netns, ifindex); |
79c97e97 | 65 | if (IS_ERR(*rdev)) { |
55682965 | 66 | dev_put(*dev); |
79c97e97 | 67 | return PTR_ERR(*rdev); |
55682965 JB |
68 | } |
69 | ||
70 | return 0; | |
71 | } | |
72 | ||
73 | /* policy for the attributes */ | |
b54452b0 | 74 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
55682965 JB |
75 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
76 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 77 | .len = 20-1 }, |
31888487 | 78 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 79 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 80 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
b9a5f8ca JM |
81 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
82 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
83 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
84 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 85 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
55682965 JB |
86 | |
87 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
88 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
89 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f | 90 | |
e007b857 EP |
91 | [NL80211_ATTR_MAC] = { .len = ETH_ALEN }, |
92 | [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN }, | |
41ade00f | 93 | |
b9454e83 | 94 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
95 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
96 | .len = WLAN_MAX_KEY_LEN }, | |
97 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
98 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
99 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
81962267 | 100 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
e31b8213 | 101 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, |
ed1b6cc7 JB |
102 | |
103 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
104 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
105 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
106 | .len = IEEE80211_MAX_DATA_LEN }, | |
107 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
108 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
109 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
110 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
111 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
112 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
113 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 114 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 115 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 116 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
117 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
118 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
119 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 120 | |
b2e1b302 LR |
121 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
122 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
123 | ||
9f1ba906 JM |
124 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
125 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
126 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
127 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
128 | .len = NL80211_MAX_SUPP_RATES }, | |
50b12f59 | 129 | [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, |
36aedc90 | 130 | |
24bdd9f4 | 131 | [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, |
15d5dda6 | 132 | [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG }, |
93da9cc1 | 133 | |
6c739419 | 134 | [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN }, |
9aed3cc1 JM |
135 | |
136 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
137 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
138 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
139 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
140 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
141 | |
142 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
143 | .len = IEEE80211_MAX_SSID_LEN }, | |
144 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
145 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 146 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 147 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 148 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
149 | [NL80211_ATTR_STA_FLAGS2] = { |
150 | .len = sizeof(struct nl80211_sta_flag_update), | |
151 | }, | |
3f77316c | 152 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
c0692b8f JB |
153 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
154 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
b23aa676 SO |
155 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
156 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
157 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 158 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 159 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
160 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
161 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
162 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
163 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 164 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
165 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
166 | .len = IEEE80211_MAX_DATA_LEN }, | |
167 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 168 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 169 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 170 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 171 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
98d2ff8b JO |
172 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, |
173 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 174 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
afe0cbf8 BR |
175 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, |
176 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, | |
885a46d0 | 177 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, |
f7ca38df | 178 | [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, |
dbd2fd65 | 179 | [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
ff1b6e69 | 180 | [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, |
9c3990aa | 181 | [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, |
bbe6ad6d | 182 | [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, |
e5497d76 | 183 | [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, |
34850ab2 | 184 | [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, |
32e9de84 | 185 | [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 }, |
9946ecfb JM |
186 | [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY, |
187 | .len = IEEE80211_MAX_DATA_LEN }, | |
188 | [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY, | |
189 | .len = IEEE80211_MAX_DATA_LEN }, | |
f4b34b55 | 190 | [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, |
a1f1c21c | 191 | [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, |
e9f935e3 | 192 | [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, |
109086ce AN |
193 | [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, |
194 | [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, | |
195 | [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, | |
196 | [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, | |
197 | [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, | |
e247bd90 | 198 | [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, |
00f740e1 AN |
199 | [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, |
200 | .len = IEEE80211_MAX_DATA_LEN }, | |
8b60b078 | 201 | [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, |
7e7c8926 BG |
202 | [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, |
203 | [NL80211_ATTR_HT_CAPABILITY_MASK] = { | |
204 | .len = NL80211_HT_CAPABILITY_LEN | |
205 | }, | |
1d9d9213 | 206 | [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, |
1b658f11 | 207 | [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, |
4486ea98 | 208 | [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, |
55682965 JB |
209 | }; |
210 | ||
e31b8213 | 211 | /* policy for the key attributes */ |
b54452b0 | 212 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 213 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
214 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
215 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
81962267 | 216 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
b9454e83 JB |
217 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, |
218 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
e31b8213 | 219 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, |
dbd2fd65 JB |
220 | [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
221 | }; | |
222 | ||
223 | /* policy for the key default flags */ | |
224 | static const struct nla_policy | |
225 | nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { | |
226 | [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, | |
227 | [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, | |
b9454e83 JB |
228 | }; |
229 | ||
ff1b6e69 JB |
230 | /* policy for WoWLAN attributes */ |
231 | static const struct nla_policy | |
232 | nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { | |
233 | [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, | |
234 | [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, | |
235 | [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, | |
236 | [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, | |
77dbbb13 JB |
237 | [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, |
238 | [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, | |
239 | [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, | |
240 | [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, | |
ff1b6e69 JB |
241 | }; |
242 | ||
e5497d76 JB |
243 | /* policy for GTK rekey offload attributes */ |
244 | static const struct nla_policy | |
245 | nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { | |
246 | [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN }, | |
247 | [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN }, | |
248 | [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN }, | |
249 | }; | |
250 | ||
a1f1c21c LC |
251 | static const struct nla_policy |
252 | nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { | |
253 | [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY, | |
254 | .len = IEEE80211_MAX_SSID_LEN }, | |
255 | }; | |
256 | ||
a043897a HS |
257 | /* ifidx get helper */ |
258 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
259 | { | |
260 | int res; | |
261 | ||
262 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
263 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
264 | nl80211_policy); | |
265 | if (res) | |
266 | return res; | |
267 | ||
268 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
269 | return -EINVAL; | |
270 | ||
271 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
272 | if (!res) | |
273 | return -EINVAL; | |
274 | return res; | |
275 | } | |
276 | ||
67748893 JB |
277 | static int nl80211_prepare_netdev_dump(struct sk_buff *skb, |
278 | struct netlink_callback *cb, | |
279 | struct cfg80211_registered_device **rdev, | |
280 | struct net_device **dev) | |
281 | { | |
282 | int ifidx = cb->args[0]; | |
283 | int err; | |
284 | ||
285 | if (!ifidx) | |
286 | ifidx = nl80211_get_ifidx(cb); | |
287 | if (ifidx < 0) | |
288 | return ifidx; | |
289 | ||
290 | cb->args[0] = ifidx; | |
291 | ||
292 | rtnl_lock(); | |
293 | ||
294 | *dev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
295 | if (!*dev) { | |
296 | err = -ENODEV; | |
297 | goto out_rtnl; | |
298 | } | |
299 | ||
300 | *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3cc25e51 FF |
301 | if (IS_ERR(*rdev)) { |
302 | err = PTR_ERR(*rdev); | |
67748893 JB |
303 | goto out_rtnl; |
304 | } | |
305 | ||
306 | return 0; | |
307 | out_rtnl: | |
308 | rtnl_unlock(); | |
309 | return err; | |
310 | } | |
311 | ||
312 | static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev) | |
313 | { | |
314 | cfg80211_unlock_rdev(rdev); | |
315 | rtnl_unlock(); | |
316 | } | |
317 | ||
f4a11bb0 JB |
318 | /* IE validation */ |
319 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
320 | { | |
321 | const u8 *pos; | |
322 | int len; | |
323 | ||
324 | if (!attr) | |
325 | return true; | |
326 | ||
327 | pos = nla_data(attr); | |
328 | len = nla_len(attr); | |
329 | ||
330 | while (len) { | |
331 | u8 elemlen; | |
332 | ||
333 | if (len < 2) | |
334 | return false; | |
335 | len -= 2; | |
336 | ||
337 | elemlen = pos[1]; | |
338 | if (elemlen > len) | |
339 | return false; | |
340 | ||
341 | len -= elemlen; | |
342 | pos += 2 + elemlen; | |
343 | } | |
344 | ||
345 | return true; | |
346 | } | |
347 | ||
55682965 JB |
348 | /* message building helper */ |
349 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
350 | int flags, u8 cmd) | |
351 | { | |
352 | /* since there is no private header just add the generic one */ | |
353 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
354 | } | |
355 | ||
5dab3b8a LR |
356 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
357 | struct ieee80211_channel *chan) | |
358 | { | |
9360ffd1 DM |
359 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ, |
360 | chan->center_freq)) | |
361 | goto nla_put_failure; | |
5dab3b8a | 362 | |
9360ffd1 DM |
363 | if ((chan->flags & IEEE80211_CHAN_DISABLED) && |
364 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED)) | |
365 | goto nla_put_failure; | |
366 | if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) && | |
367 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN)) | |
368 | goto nla_put_failure; | |
369 | if ((chan->flags & IEEE80211_CHAN_NO_IBSS) && | |
370 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS)) | |
371 | goto nla_put_failure; | |
372 | if ((chan->flags & IEEE80211_CHAN_RADAR) && | |
373 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR)) | |
374 | goto nla_put_failure; | |
5dab3b8a | 375 | |
9360ffd1 DM |
376 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, |
377 | DBM_TO_MBM(chan->max_power))) | |
378 | goto nla_put_failure; | |
5dab3b8a LR |
379 | |
380 | return 0; | |
381 | ||
382 | nla_put_failure: | |
383 | return -ENOBUFS; | |
384 | } | |
385 | ||
55682965 JB |
386 | /* netlink command implementations */ |
387 | ||
b9454e83 JB |
388 | struct key_parse { |
389 | struct key_params p; | |
390 | int idx; | |
e31b8213 | 391 | int type; |
b9454e83 | 392 | bool def, defmgmt; |
dbd2fd65 | 393 | bool def_uni, def_multi; |
b9454e83 JB |
394 | }; |
395 | ||
396 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
397 | { | |
398 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
399 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
400 | nl80211_key_policy); | |
401 | if (err) | |
402 | return err; | |
403 | ||
404 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
405 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
406 | ||
dbd2fd65 JB |
407 | if (k->def) { |
408 | k->def_uni = true; | |
409 | k->def_multi = true; | |
410 | } | |
411 | if (k->defmgmt) | |
412 | k->def_multi = true; | |
413 | ||
b9454e83 JB |
414 | if (tb[NL80211_KEY_IDX]) |
415 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
416 | ||
417 | if (tb[NL80211_KEY_DATA]) { | |
418 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
419 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
420 | } | |
421 | ||
422 | if (tb[NL80211_KEY_SEQ]) { | |
423 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
424 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
425 | } | |
426 | ||
427 | if (tb[NL80211_KEY_CIPHER]) | |
428 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
429 | ||
e31b8213 JB |
430 | if (tb[NL80211_KEY_TYPE]) { |
431 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
432 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
433 | return -EINVAL; | |
434 | } | |
435 | ||
dbd2fd65 JB |
436 | if (tb[NL80211_KEY_DEFAULT_TYPES]) { |
437 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
2da8f419 JB |
438 | err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, |
439 | tb[NL80211_KEY_DEFAULT_TYPES], | |
440 | nl80211_key_default_policy); | |
dbd2fd65 JB |
441 | if (err) |
442 | return err; | |
443 | ||
444 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
445 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
446 | } | |
447 | ||
b9454e83 JB |
448 | return 0; |
449 | } | |
450 | ||
451 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
452 | { | |
453 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
454 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
455 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
456 | } | |
457 | ||
458 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
459 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
460 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
461 | } | |
462 | ||
463 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
464 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
465 | ||
466 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
467 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
468 | ||
469 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
470 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
471 | ||
dbd2fd65 JB |
472 | if (k->def) { |
473 | k->def_uni = true; | |
474 | k->def_multi = true; | |
475 | } | |
476 | if (k->defmgmt) | |
477 | k->def_multi = true; | |
478 | ||
e31b8213 JB |
479 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
480 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
481 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
482 | return -EINVAL; | |
483 | } | |
484 | ||
dbd2fd65 JB |
485 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { |
486 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
487 | int err = nla_parse_nested( | |
488 | kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, | |
489 | info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], | |
490 | nl80211_key_default_policy); | |
491 | if (err) | |
492 | return err; | |
493 | ||
494 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
495 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
496 | } | |
497 | ||
b9454e83 JB |
498 | return 0; |
499 | } | |
500 | ||
501 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
502 | { | |
503 | int err; | |
504 | ||
505 | memset(k, 0, sizeof(*k)); | |
506 | k->idx = -1; | |
e31b8213 | 507 | k->type = -1; |
b9454e83 JB |
508 | |
509 | if (info->attrs[NL80211_ATTR_KEY]) | |
510 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
511 | else | |
512 | err = nl80211_parse_key_old(info, k); | |
513 | ||
514 | if (err) | |
515 | return err; | |
516 | ||
517 | if (k->def && k->defmgmt) | |
518 | return -EINVAL; | |
519 | ||
dbd2fd65 JB |
520 | if (k->defmgmt) { |
521 | if (k->def_uni || !k->def_multi) | |
522 | return -EINVAL; | |
523 | } | |
524 | ||
b9454e83 JB |
525 | if (k->idx != -1) { |
526 | if (k->defmgmt) { | |
527 | if (k->idx < 4 || k->idx > 5) | |
528 | return -EINVAL; | |
529 | } else if (k->def) { | |
530 | if (k->idx < 0 || k->idx > 3) | |
531 | return -EINVAL; | |
532 | } else { | |
533 | if (k->idx < 0 || k->idx > 5) | |
534 | return -EINVAL; | |
535 | } | |
536 | } | |
537 | ||
538 | return 0; | |
539 | } | |
540 | ||
fffd0934 JB |
541 | static struct cfg80211_cached_keys * |
542 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
543 | struct nlattr *keys) | |
544 | { | |
545 | struct key_parse parse; | |
546 | struct nlattr *key; | |
547 | struct cfg80211_cached_keys *result; | |
548 | int rem, err, def = 0; | |
549 | ||
550 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
551 | if (!result) | |
552 | return ERR_PTR(-ENOMEM); | |
553 | ||
554 | result->def = -1; | |
555 | result->defmgmt = -1; | |
556 | ||
557 | nla_for_each_nested(key, keys, rem) { | |
558 | memset(&parse, 0, sizeof(parse)); | |
559 | parse.idx = -1; | |
560 | ||
561 | err = nl80211_parse_key_new(key, &parse); | |
562 | if (err) | |
563 | goto error; | |
564 | err = -EINVAL; | |
565 | if (!parse.p.key) | |
566 | goto error; | |
567 | if (parse.idx < 0 || parse.idx > 4) | |
568 | goto error; | |
569 | if (parse.def) { | |
570 | if (def) | |
571 | goto error; | |
572 | def = 1; | |
573 | result->def = parse.idx; | |
dbd2fd65 JB |
574 | if (!parse.def_uni || !parse.def_multi) |
575 | goto error; | |
fffd0934 JB |
576 | } else if (parse.defmgmt) |
577 | goto error; | |
578 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
e31b8213 | 579 | parse.idx, false, NULL); |
fffd0934 JB |
580 | if (err) |
581 | goto error; | |
582 | result->params[parse.idx].cipher = parse.p.cipher; | |
583 | result->params[parse.idx].key_len = parse.p.key_len; | |
584 | result->params[parse.idx].key = result->data[parse.idx]; | |
585 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
586 | } | |
587 | ||
588 | return result; | |
589 | error: | |
590 | kfree(result); | |
591 | return ERR_PTR(err); | |
592 | } | |
593 | ||
594 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
595 | { | |
596 | ASSERT_WDEV_LOCK(wdev); | |
597 | ||
fffd0934 JB |
598 | switch (wdev->iftype) { |
599 | case NL80211_IFTYPE_AP: | |
600 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 601 | case NL80211_IFTYPE_P2P_GO: |
ff973af7 | 602 | case NL80211_IFTYPE_MESH_POINT: |
fffd0934 JB |
603 | break; |
604 | case NL80211_IFTYPE_ADHOC: | |
605 | if (!wdev->current_bss) | |
606 | return -ENOLINK; | |
607 | break; | |
608 | case NL80211_IFTYPE_STATION: | |
074ac8df | 609 | case NL80211_IFTYPE_P2P_CLIENT: |
fffd0934 JB |
610 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
611 | return -ENOLINK; | |
612 | break; | |
613 | default: | |
614 | return -EINVAL; | |
615 | } | |
616 | ||
617 | return 0; | |
618 | } | |
619 | ||
7527a782 JB |
620 | static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) |
621 | { | |
622 | struct nlattr *nl_modes = nla_nest_start(msg, attr); | |
623 | int i; | |
624 | ||
625 | if (!nl_modes) | |
626 | goto nla_put_failure; | |
627 | ||
628 | i = 0; | |
629 | while (ifmodes) { | |
9360ffd1 DM |
630 | if ((ifmodes & 1) && nla_put_flag(msg, i)) |
631 | goto nla_put_failure; | |
7527a782 JB |
632 | ifmodes >>= 1; |
633 | i++; | |
634 | } | |
635 | ||
636 | nla_nest_end(msg, nl_modes); | |
637 | return 0; | |
638 | ||
639 | nla_put_failure: | |
640 | return -ENOBUFS; | |
641 | } | |
642 | ||
643 | static int nl80211_put_iface_combinations(struct wiphy *wiphy, | |
644 | struct sk_buff *msg) | |
645 | { | |
646 | struct nlattr *nl_combis; | |
647 | int i, j; | |
648 | ||
649 | nl_combis = nla_nest_start(msg, | |
650 | NL80211_ATTR_INTERFACE_COMBINATIONS); | |
651 | if (!nl_combis) | |
652 | goto nla_put_failure; | |
653 | ||
654 | for (i = 0; i < wiphy->n_iface_combinations; i++) { | |
655 | const struct ieee80211_iface_combination *c; | |
656 | struct nlattr *nl_combi, *nl_limits; | |
657 | ||
658 | c = &wiphy->iface_combinations[i]; | |
659 | ||
660 | nl_combi = nla_nest_start(msg, i + 1); | |
661 | if (!nl_combi) | |
662 | goto nla_put_failure; | |
663 | ||
664 | nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS); | |
665 | if (!nl_limits) | |
666 | goto nla_put_failure; | |
667 | ||
668 | for (j = 0; j < c->n_limits; j++) { | |
669 | struct nlattr *nl_limit; | |
670 | ||
671 | nl_limit = nla_nest_start(msg, j + 1); | |
672 | if (!nl_limit) | |
673 | goto nla_put_failure; | |
9360ffd1 DM |
674 | if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX, |
675 | c->limits[j].max)) | |
676 | goto nla_put_failure; | |
7527a782 JB |
677 | if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, |
678 | c->limits[j].types)) | |
679 | goto nla_put_failure; | |
680 | nla_nest_end(msg, nl_limit); | |
681 | } | |
682 | ||
683 | nla_nest_end(msg, nl_limits); | |
684 | ||
9360ffd1 DM |
685 | if (c->beacon_int_infra_match && |
686 | nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH)) | |
687 | goto nla_put_failure; | |
688 | if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, | |
689 | c->num_different_channels) || | |
690 | nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM, | |
691 | c->max_interfaces)) | |
692 | goto nla_put_failure; | |
7527a782 JB |
693 | |
694 | nla_nest_end(msg, nl_combi); | |
695 | } | |
696 | ||
697 | nla_nest_end(msg, nl_combis); | |
698 | ||
699 | return 0; | |
700 | nla_put_failure: | |
701 | return -ENOBUFS; | |
702 | } | |
703 | ||
55682965 JB |
704 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
705 | struct cfg80211_registered_device *dev) | |
706 | { | |
707 | void *hdr; | |
ee688b00 JB |
708 | struct nlattr *nl_bands, *nl_band; |
709 | struct nlattr *nl_freqs, *nl_freq; | |
710 | struct nlattr *nl_rates, *nl_rate; | |
8fdc621d | 711 | struct nlattr *nl_cmds; |
ee688b00 JB |
712 | enum ieee80211_band band; |
713 | struct ieee80211_channel *chan; | |
714 | struct ieee80211_rate *rate; | |
715 | int i; | |
2e161f78 JB |
716 | const struct ieee80211_txrx_stypes *mgmt_stypes = |
717 | dev->wiphy.mgmt_stypes; | |
55682965 JB |
718 | |
719 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
720 | if (!hdr) | |
721 | return -1; | |
722 | ||
9360ffd1 DM |
723 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) || |
724 | nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) || | |
725 | nla_put_u32(msg, NL80211_ATTR_GENERATION, | |
726 | cfg80211_rdev_list_generation) || | |
727 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, | |
728 | dev->wiphy.retry_short) || | |
729 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
730 | dev->wiphy.retry_long) || | |
731 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
732 | dev->wiphy.frag_threshold) || | |
733 | nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
734 | dev->wiphy.rts_threshold) || | |
735 | nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, | |
736 | dev->wiphy.coverage_class) || | |
737 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, | |
738 | dev->wiphy.max_scan_ssids) || | |
739 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, | |
740 | dev->wiphy.max_sched_scan_ssids) || | |
741 | nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, | |
742 | dev->wiphy.max_scan_ie_len) || | |
743 | nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, | |
744 | dev->wiphy.max_sched_scan_ie_len) || | |
745 | nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS, | |
746 | dev->wiphy.max_match_sets)) | |
747 | goto nla_put_failure; | |
748 | ||
749 | if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && | |
750 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN)) | |
751 | goto nla_put_failure; | |
752 | if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && | |
753 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH)) | |
754 | goto nla_put_failure; | |
755 | if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && | |
756 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD)) | |
757 | goto nla_put_failure; | |
758 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && | |
759 | nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT)) | |
760 | goto nla_put_failure; | |
761 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && | |
762 | nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT)) | |
763 | goto nla_put_failure; | |
764 | if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && | |
765 | nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP)) | |
766 | goto nla_put_failure; | |
767 | ||
768 | if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES, | |
769 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
770 | dev->wiphy.cipher_suites)) | |
771 | goto nla_put_failure; | |
772 | ||
773 | if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, | |
774 | dev->wiphy.max_num_pmkids)) | |
775 | goto nla_put_failure; | |
776 | ||
777 | if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
778 | nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE)) | |
779 | goto nla_put_failure; | |
780 | ||
781 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, | |
782 | dev->wiphy.available_antennas_tx) || | |
783 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, | |
784 | dev->wiphy.available_antennas_rx)) | |
785 | goto nla_put_failure; | |
786 | ||
787 | if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && | |
788 | nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, | |
789 | dev->wiphy.probe_resp_offload)) | |
790 | goto nla_put_failure; | |
87bbbe22 | 791 | |
7f531e03 BR |
792 | if ((dev->wiphy.available_antennas_tx || |
793 | dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) { | |
afe0cbf8 BR |
794 | u32 tx_ant = 0, rx_ant = 0; |
795 | int res; | |
796 | res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant); | |
797 | if (!res) { | |
9360ffd1 DM |
798 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, |
799 | tx_ant) || | |
800 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, | |
801 | rx_ant)) | |
802 | goto nla_put_failure; | |
afe0cbf8 BR |
803 | } |
804 | } | |
805 | ||
7527a782 JB |
806 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, |
807 | dev->wiphy.interface_modes)) | |
f59ac048 LR |
808 | goto nla_put_failure; |
809 | ||
ee688b00 JB |
810 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
811 | if (!nl_bands) | |
812 | goto nla_put_failure; | |
813 | ||
814 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
815 | if (!dev->wiphy.bands[band]) | |
816 | continue; | |
817 | ||
818 | nl_band = nla_nest_start(msg, band); | |
819 | if (!nl_band) | |
820 | goto nla_put_failure; | |
821 | ||
d51626df | 822 | /* add HT info */ |
9360ffd1 DM |
823 | if (dev->wiphy.bands[band]->ht_cap.ht_supported && |
824 | (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
825 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
826 | &dev->wiphy.bands[band]->ht_cap.mcs) || | |
827 | nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
828 | dev->wiphy.bands[band]->ht_cap.cap) || | |
829 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
830 | dev->wiphy.bands[band]->ht_cap.ampdu_factor) || | |
831 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
832 | dev->wiphy.bands[band]->ht_cap.ampdu_density))) | |
833 | goto nla_put_failure; | |
d51626df | 834 | |
ee688b00 JB |
835 | /* add frequencies */ |
836 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
837 | if (!nl_freqs) | |
838 | goto nla_put_failure; | |
839 | ||
840 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
841 | nl_freq = nla_nest_start(msg, i); | |
842 | if (!nl_freq) | |
843 | goto nla_put_failure; | |
844 | ||
845 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
846 | |
847 | if (nl80211_msg_put_channel(msg, chan)) | |
848 | goto nla_put_failure; | |
e2f367f2 | 849 | |
ee688b00 JB |
850 | nla_nest_end(msg, nl_freq); |
851 | } | |
852 | ||
853 | nla_nest_end(msg, nl_freqs); | |
854 | ||
855 | /* add bitrates */ | |
856 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
857 | if (!nl_rates) | |
858 | goto nla_put_failure; | |
859 | ||
860 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
861 | nl_rate = nla_nest_start(msg, i); | |
862 | if (!nl_rate) | |
863 | goto nla_put_failure; | |
864 | ||
865 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
9360ffd1 DM |
866 | if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE, |
867 | rate->bitrate)) | |
868 | goto nla_put_failure; | |
869 | if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && | |
870 | nla_put_flag(msg, | |
871 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE)) | |
872 | goto nla_put_failure; | |
ee688b00 JB |
873 | |
874 | nla_nest_end(msg, nl_rate); | |
875 | } | |
876 | ||
877 | nla_nest_end(msg, nl_rates); | |
878 | ||
879 | nla_nest_end(msg, nl_band); | |
880 | } | |
881 | nla_nest_end(msg, nl_bands); | |
882 | ||
8fdc621d JB |
883 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
884 | if (!nl_cmds) | |
885 | goto nla_put_failure; | |
886 | ||
887 | i = 0; | |
888 | #define CMD(op, n) \ | |
889 | do { \ | |
890 | if (dev->ops->op) { \ | |
891 | i++; \ | |
9360ffd1 DM |
892 | if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \ |
893 | goto nla_put_failure; \ | |
8fdc621d JB |
894 | } \ |
895 | } while (0) | |
896 | ||
897 | CMD(add_virtual_intf, NEW_INTERFACE); | |
898 | CMD(change_virtual_intf, SET_INTERFACE); | |
899 | CMD(add_key, NEW_KEY); | |
8860020e | 900 | CMD(start_ap, START_AP); |
8fdc621d JB |
901 | CMD(add_station, NEW_STATION); |
902 | CMD(add_mpath, NEW_MPATH); | |
24bdd9f4 | 903 | CMD(update_mesh_config, SET_MESH_CONFIG); |
8fdc621d | 904 | CMD(change_bss, SET_BSS); |
636a5d36 JM |
905 | CMD(auth, AUTHENTICATE); |
906 | CMD(assoc, ASSOCIATE); | |
907 | CMD(deauth, DEAUTHENTICATE); | |
908 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 909 | CMD(join_ibss, JOIN_IBSS); |
29cbe68c | 910 | CMD(join_mesh, JOIN_MESH); |
67fbb16b SO |
911 | CMD(set_pmksa, SET_PMKSA); |
912 | CMD(del_pmksa, DEL_PMKSA); | |
913 | CMD(flush_pmksa, FLUSH_PMKSA); | |
7c4ef712 JB |
914 | if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) |
915 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); | |
13ae75b1 | 916 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
2e161f78 | 917 | CMD(mgmt_tx, FRAME); |
f7ca38df | 918 | CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); |
5be83de5 | 919 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 | 920 | i++; |
9360ffd1 DM |
921 | if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) |
922 | goto nla_put_failure; | |
463d0183 | 923 | } |
e8c9bd5b | 924 | if (dev->ops->set_monitor_channel || dev->ops->start_ap || |
cc1d2806 | 925 | dev->ops->join_mesh) { |
aa430da4 JB |
926 | i++; |
927 | if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) | |
928 | goto nla_put_failure; | |
929 | } | |
e8347eba | 930 | CMD(set_wds_peer, SET_WDS_PEER); |
109086ce AN |
931 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { |
932 | CMD(tdls_mgmt, TDLS_MGMT); | |
933 | CMD(tdls_oper, TDLS_OPER); | |
934 | } | |
807f8a8c LC |
935 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) |
936 | CMD(sched_scan_start, START_SCHED_SCAN); | |
7f6cf311 | 937 | CMD(probe_client, PROBE_CLIENT); |
1d9d9213 | 938 | CMD(set_noack_map, SET_NOACK_MAP); |
5e760230 JB |
939 | if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { |
940 | i++; | |
9360ffd1 DM |
941 | if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS)) |
942 | goto nla_put_failure; | |
5e760230 | 943 | } |
8fdc621d | 944 | |
4745fc09 KV |
945 | #ifdef CONFIG_NL80211_TESTMODE |
946 | CMD(testmode_cmd, TESTMODE); | |
947 | #endif | |
948 | ||
8fdc621d | 949 | #undef CMD |
b23aa676 | 950 | |
6829c878 | 951 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 | 952 | i++; |
9360ffd1 DM |
953 | if (nla_put_u32(msg, i, NL80211_CMD_CONNECT)) |
954 | goto nla_put_failure; | |
b23aa676 SO |
955 | } |
956 | ||
6829c878 | 957 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 | 958 | i++; |
9360ffd1 DM |
959 | if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT)) |
960 | goto nla_put_failure; | |
b23aa676 SO |
961 | } |
962 | ||
8fdc621d JB |
963 | nla_nest_end(msg, nl_cmds); |
964 | ||
7c4ef712 | 965 | if (dev->ops->remain_on_channel && |
9360ffd1 DM |
966 | (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && |
967 | nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, | |
968 | dev->wiphy.max_remain_on_channel_duration)) | |
969 | goto nla_put_failure; | |
a293911d | 970 | |
9360ffd1 DM |
971 | if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && |
972 | nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) | |
973 | goto nla_put_failure; | |
f7ca38df | 974 | |
2e161f78 JB |
975 | if (mgmt_stypes) { |
976 | u16 stypes; | |
977 | struct nlattr *nl_ftypes, *nl_ifs; | |
978 | enum nl80211_iftype ift; | |
979 | ||
980 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
981 | if (!nl_ifs) | |
982 | goto nla_put_failure; | |
983 | ||
984 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
985 | nl_ftypes = nla_nest_start(msg, ift); | |
986 | if (!nl_ftypes) | |
987 | goto nla_put_failure; | |
988 | i = 0; | |
989 | stypes = mgmt_stypes[ift].tx; | |
990 | while (stypes) { | |
9360ffd1 DM |
991 | if ((stypes & 1) && |
992 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
993 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
994 | goto nla_put_failure; | |
2e161f78 JB |
995 | stypes >>= 1; |
996 | i++; | |
997 | } | |
998 | nla_nest_end(msg, nl_ftypes); | |
999 | } | |
1000 | ||
74b70a4e JB |
1001 | nla_nest_end(msg, nl_ifs); |
1002 | ||
2e161f78 JB |
1003 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
1004 | if (!nl_ifs) | |
1005 | goto nla_put_failure; | |
1006 | ||
1007 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
1008 | nl_ftypes = nla_nest_start(msg, ift); | |
1009 | if (!nl_ftypes) | |
1010 | goto nla_put_failure; | |
1011 | i = 0; | |
1012 | stypes = mgmt_stypes[ift].rx; | |
1013 | while (stypes) { | |
9360ffd1 DM |
1014 | if ((stypes & 1) && |
1015 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1016 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1017 | goto nla_put_failure; | |
2e161f78 JB |
1018 | stypes >>= 1; |
1019 | i++; | |
1020 | } | |
1021 | nla_nest_end(msg, nl_ftypes); | |
1022 | } | |
1023 | nla_nest_end(msg, nl_ifs); | |
1024 | } | |
1025 | ||
ff1b6e69 JB |
1026 | if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) { |
1027 | struct nlattr *nl_wowlan; | |
1028 | ||
1029 | nl_wowlan = nla_nest_start(msg, | |
1030 | NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); | |
1031 | if (!nl_wowlan) | |
1032 | goto nla_put_failure; | |
1033 | ||
9360ffd1 DM |
1034 | if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) && |
1035 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || | |
1036 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) && | |
1037 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || | |
1038 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) && | |
1039 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || | |
1040 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && | |
1041 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) || | |
1042 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && | |
1043 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || | |
1044 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && | |
1045 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || | |
1046 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && | |
1047 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || | |
1048 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) && | |
1049 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) | |
1050 | goto nla_put_failure; | |
ff1b6e69 JB |
1051 | if (dev->wiphy.wowlan.n_patterns) { |
1052 | struct nl80211_wowlan_pattern_support pat = { | |
1053 | .max_patterns = dev->wiphy.wowlan.n_patterns, | |
1054 | .min_pattern_len = | |
1055 | dev->wiphy.wowlan.pattern_min_len, | |
1056 | .max_pattern_len = | |
1057 | dev->wiphy.wowlan.pattern_max_len, | |
1058 | }; | |
9360ffd1 DM |
1059 | if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, |
1060 | sizeof(pat), &pat)) | |
1061 | goto nla_put_failure; | |
ff1b6e69 JB |
1062 | } |
1063 | ||
1064 | nla_nest_end(msg, nl_wowlan); | |
1065 | } | |
1066 | ||
7527a782 JB |
1067 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, |
1068 | dev->wiphy.software_iftypes)) | |
1069 | goto nla_put_failure; | |
1070 | ||
1071 | if (nl80211_put_iface_combinations(&dev->wiphy, msg)) | |
1072 | goto nla_put_failure; | |
1073 | ||
9360ffd1 DM |
1074 | if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && |
1075 | nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME, | |
1076 | dev->wiphy.ap_sme_capa)) | |
1077 | goto nla_put_failure; | |
562a7480 | 1078 | |
9360ffd1 DM |
1079 | if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, |
1080 | dev->wiphy.features)) | |
1081 | goto nla_put_failure; | |
1f074bd8 | 1082 | |
9360ffd1 DM |
1083 | if (dev->wiphy.ht_capa_mod_mask && |
1084 | nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, | |
1085 | sizeof(*dev->wiphy.ht_capa_mod_mask), | |
1086 | dev->wiphy.ht_capa_mod_mask)) | |
1087 | goto nla_put_failure; | |
7e7c8926 | 1088 | |
55682965 JB |
1089 | return genlmsg_end(msg, hdr); |
1090 | ||
1091 | nla_put_failure: | |
bc3ed28c TG |
1092 | genlmsg_cancel(msg, hdr); |
1093 | return -EMSGSIZE; | |
55682965 JB |
1094 | } |
1095 | ||
1096 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
1097 | { | |
1098 | int idx = 0; | |
1099 | int start = cb->args[0]; | |
1100 | struct cfg80211_registered_device *dev; | |
1101 | ||
a1794390 | 1102 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 1103 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
1104 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
1105 | continue; | |
b4637271 | 1106 | if (++idx <= start) |
55682965 JB |
1107 | continue; |
1108 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
1109 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
1110 | dev) < 0) { |
1111 | idx--; | |
55682965 | 1112 | break; |
b4637271 | 1113 | } |
55682965 | 1114 | } |
a1794390 | 1115 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1116 | |
1117 | cb->args[0] = idx; | |
1118 | ||
1119 | return skb->len; | |
1120 | } | |
1121 | ||
1122 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
1123 | { | |
1124 | struct sk_buff *msg; | |
4c476991 | 1125 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
55682965 | 1126 | |
fd2120ca | 1127 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1128 | if (!msg) |
4c476991 | 1129 | return -ENOMEM; |
55682965 | 1130 | |
4c476991 JB |
1131 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) { |
1132 | nlmsg_free(msg); | |
1133 | return -ENOBUFS; | |
1134 | } | |
55682965 | 1135 | |
134e6375 | 1136 | return genlmsg_reply(msg, info); |
55682965 JB |
1137 | } |
1138 | ||
31888487 JM |
1139 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
1140 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
1141 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
1142 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
1143 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
1144 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
1145 | }; | |
1146 | ||
1147 | static int parse_txq_params(struct nlattr *tb[], | |
1148 | struct ieee80211_txq_params *txq_params) | |
1149 | { | |
a3304b0a | 1150 | if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] || |
31888487 JM |
1151 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || |
1152 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
1153 | return -EINVAL; | |
1154 | ||
a3304b0a | 1155 | txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]); |
31888487 JM |
1156 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); |
1157 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
1158 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
1159 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
1160 | ||
a3304b0a JB |
1161 | if (txq_params->ac >= NL80211_NUM_ACS) |
1162 | return -EINVAL; | |
1163 | ||
31888487 JM |
1164 | return 0; |
1165 | } | |
1166 | ||
f444de05 JB |
1167 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
1168 | { | |
1169 | /* | |
cc1d2806 JB |
1170 | * You can only set the channel explicitly for WDS interfaces, |
1171 | * all others have their channel managed via their respective | |
1172 | * "establish a connection" command (connect, join, ...) | |
1173 | * | |
1174 | * For AP/GO and mesh mode, the channel can be set with the | |
1175 | * channel userspace API, but is only stored and passed to the | |
1176 | * low-level driver when the AP starts or the mesh is joined. | |
1177 | * This is for backward compatibility, userspace can also give | |
1178 | * the channel in the start-ap or join-mesh commands instead. | |
f444de05 JB |
1179 | * |
1180 | * Monitors are special as they are normally slaved to | |
e8c9bd5b JB |
1181 | * whatever else is going on, so they have their own special |
1182 | * operation to set the monitor channel if possible. | |
f444de05 JB |
1183 | */ |
1184 | return !wdev || | |
1185 | wdev->iftype == NL80211_IFTYPE_AP || | |
f444de05 | 1186 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || |
074ac8df JB |
1187 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
1188 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
f444de05 JB |
1189 | } |
1190 | ||
cd6c6598 JB |
1191 | static bool nl80211_valid_channel_type(struct genl_info *info, |
1192 | enum nl80211_channel_type *channel_type) | |
1193 | { | |
1194 | enum nl80211_channel_type tmp; | |
1195 | ||
1196 | if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) | |
1197 | return false; | |
1198 | ||
1199 | tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
1200 | if (tmp != NL80211_CHAN_NO_HT && | |
1201 | tmp != NL80211_CHAN_HT20 && | |
1202 | tmp != NL80211_CHAN_HT40PLUS && | |
1203 | tmp != NL80211_CHAN_HT40MINUS) | |
1204 | return false; | |
1205 | ||
1206 | if (channel_type) | |
1207 | *channel_type = tmp; | |
1208 | ||
1209 | return true; | |
1210 | } | |
1211 | ||
f444de05 JB |
1212 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, |
1213 | struct wireless_dev *wdev, | |
1214 | struct genl_info *info) | |
1215 | { | |
aa430da4 | 1216 | struct ieee80211_channel *channel; |
f444de05 JB |
1217 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; |
1218 | u32 freq; | |
1219 | int result; | |
e8c9bd5b JB |
1220 | enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; |
1221 | ||
1222 | if (wdev) | |
1223 | iftype = wdev->iftype; | |
f444de05 JB |
1224 | |
1225 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
1226 | return -EINVAL; | |
1227 | ||
1228 | if (!nl80211_can_set_dev_channel(wdev)) | |
1229 | return -EOPNOTSUPP; | |
1230 | ||
cd6c6598 JB |
1231 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && |
1232 | !nl80211_valid_channel_type(info, &channel_type)) | |
1233 | return -EINVAL; | |
f444de05 JB |
1234 | |
1235 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
1236 | ||
1237 | mutex_lock(&rdev->devlist_mtx); | |
e8c9bd5b | 1238 | switch (iftype) { |
aa430da4 JB |
1239 | case NL80211_IFTYPE_AP: |
1240 | case NL80211_IFTYPE_P2P_GO: | |
1241 | if (wdev->beacon_interval) { | |
1242 | result = -EBUSY; | |
1243 | break; | |
1244 | } | |
1245 | channel = rdev_freq_to_chan(rdev, freq, channel_type); | |
1246 | if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy, | |
1247 | channel, | |
1248 | channel_type)) { | |
1249 | result = -EINVAL; | |
1250 | break; | |
1251 | } | |
1252 | wdev->preset_chan = channel; | |
1253 | wdev->preset_chantype = channel_type; | |
1254 | result = 0; | |
1255 | break; | |
cc1d2806 JB |
1256 | case NL80211_IFTYPE_MESH_POINT: |
1257 | result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type); | |
1258 | break; | |
e8c9bd5b JB |
1259 | case NL80211_IFTYPE_MONITOR: |
1260 | result = cfg80211_set_monitor_channel(rdev, freq, channel_type); | |
1261 | break; | |
aa430da4 | 1262 | default: |
e8c9bd5b | 1263 | result = -EINVAL; |
f444de05 JB |
1264 | } |
1265 | mutex_unlock(&rdev->devlist_mtx); | |
1266 | ||
1267 | return result; | |
1268 | } | |
1269 | ||
1270 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
1271 | { | |
4c476991 JB |
1272 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1273 | struct net_device *netdev = info->user_ptr[1]; | |
f444de05 | 1274 | |
4c476991 | 1275 | return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); |
f444de05 JB |
1276 | } |
1277 | ||
e8347eba BJ |
1278 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
1279 | { | |
43b19952 JB |
1280 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1281 | struct net_device *dev = info->user_ptr[1]; | |
1282 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
388ac775 | 1283 | const u8 *bssid; |
e8347eba BJ |
1284 | |
1285 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1286 | return -EINVAL; | |
1287 | ||
43b19952 JB |
1288 | if (netif_running(dev)) |
1289 | return -EBUSY; | |
e8347eba | 1290 | |
43b19952 JB |
1291 | if (!rdev->ops->set_wds_peer) |
1292 | return -EOPNOTSUPP; | |
e8347eba | 1293 | |
43b19952 JB |
1294 | if (wdev->iftype != NL80211_IFTYPE_WDS) |
1295 | return -EOPNOTSUPP; | |
e8347eba BJ |
1296 | |
1297 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
43b19952 | 1298 | return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid); |
e8347eba BJ |
1299 | } |
1300 | ||
1301 | ||
55682965 JB |
1302 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
1303 | { | |
1304 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
1305 | struct net_device *netdev = NULL; |
1306 | struct wireless_dev *wdev; | |
a1e567c8 | 1307 | int result = 0, rem_txq_params = 0; |
31888487 | 1308 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
1309 | u32 changed; |
1310 | u8 retry_short = 0, retry_long = 0; | |
1311 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 1312 | u8 coverage_class = 0; |
55682965 | 1313 | |
f444de05 JB |
1314 | /* |
1315 | * Try to find the wiphy and netdev. Normally this | |
1316 | * function shouldn't need the netdev, but this is | |
1317 | * done for backward compatibility -- previously | |
1318 | * setting the channel was done per wiphy, but now | |
1319 | * it is per netdev. Previous userland like hostapd | |
1320 | * also passed a netdev to set_wiphy, so that it is | |
1321 | * possible to let that go to the right netdev! | |
1322 | */ | |
4bbf4d56 JB |
1323 | mutex_lock(&cfg80211_mutex); |
1324 | ||
f444de05 JB |
1325 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
1326 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
1327 | ||
1328 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
1329 | if (netdev && netdev->ieee80211_ptr) { | |
1330 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
1331 | mutex_lock(&rdev->mtx); | |
1332 | } else | |
1333 | netdev = NULL; | |
4bbf4d56 JB |
1334 | } |
1335 | ||
f444de05 JB |
1336 | if (!netdev) { |
1337 | rdev = __cfg80211_rdev_from_info(info); | |
1338 | if (IS_ERR(rdev)) { | |
1339 | mutex_unlock(&cfg80211_mutex); | |
4c476991 | 1340 | return PTR_ERR(rdev); |
f444de05 JB |
1341 | } |
1342 | wdev = NULL; | |
1343 | netdev = NULL; | |
1344 | result = 0; | |
1345 | ||
1346 | mutex_lock(&rdev->mtx); | |
cc1d2806 | 1347 | } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) |
f444de05 JB |
1348 | wdev = netdev->ieee80211_ptr; |
1349 | else | |
1350 | wdev = NULL; | |
1351 | ||
1352 | /* | |
1353 | * end workaround code, by now the rdev is available | |
1354 | * and locked, and wdev may or may not be NULL. | |
1355 | */ | |
4bbf4d56 JB |
1356 | |
1357 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
1358 | result = cfg80211_dev_rename( |
1359 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
1360 | |
1361 | mutex_unlock(&cfg80211_mutex); | |
1362 | ||
1363 | if (result) | |
1364 | goto bad_res; | |
31888487 JM |
1365 | |
1366 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
1367 | struct ieee80211_txq_params txq_params; | |
1368 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
1369 | ||
1370 | if (!rdev->ops->set_txq_params) { | |
1371 | result = -EOPNOTSUPP; | |
1372 | goto bad_res; | |
1373 | } | |
1374 | ||
f70f01c2 EP |
1375 | if (!netdev) { |
1376 | result = -EINVAL; | |
1377 | goto bad_res; | |
1378 | } | |
1379 | ||
133a3ff2 JB |
1380 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
1381 | netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { | |
1382 | result = -EINVAL; | |
1383 | goto bad_res; | |
1384 | } | |
1385 | ||
2b5f8b0b JB |
1386 | if (!netif_running(netdev)) { |
1387 | result = -ENETDOWN; | |
1388 | goto bad_res; | |
1389 | } | |
1390 | ||
31888487 JM |
1391 | nla_for_each_nested(nl_txq_params, |
1392 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
1393 | rem_txq_params) { | |
1394 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
1395 | nla_data(nl_txq_params), | |
1396 | nla_len(nl_txq_params), | |
1397 | txq_params_policy); | |
1398 | result = parse_txq_params(tb, &txq_params); | |
1399 | if (result) | |
1400 | goto bad_res; | |
1401 | ||
1402 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
f70f01c2 | 1403 | netdev, |
31888487 JM |
1404 | &txq_params); |
1405 | if (result) | |
1406 | goto bad_res; | |
1407 | } | |
1408 | } | |
55682965 | 1409 | |
72bdcf34 | 1410 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
f444de05 | 1411 | result = __nl80211_set_channel(rdev, wdev, info); |
72bdcf34 JM |
1412 | if (result) |
1413 | goto bad_res; | |
1414 | } | |
1415 | ||
98d2ff8b JO |
1416 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
1417 | enum nl80211_tx_power_setting type; | |
1418 | int idx, mbm = 0; | |
1419 | ||
1420 | if (!rdev->ops->set_tx_power) { | |
60ea385f | 1421 | result = -EOPNOTSUPP; |
98d2ff8b JO |
1422 | goto bad_res; |
1423 | } | |
1424 | ||
1425 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
1426 | type = nla_get_u32(info->attrs[idx]); | |
1427 | ||
1428 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
1429 | (type != NL80211_TX_POWER_AUTOMATIC)) { | |
1430 | result = -EINVAL; | |
1431 | goto bad_res; | |
1432 | } | |
1433 | ||
1434 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
1435 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
1436 | mbm = nla_get_u32(info->attrs[idx]); | |
1437 | } | |
1438 | ||
1439 | result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm); | |
1440 | if (result) | |
1441 | goto bad_res; | |
1442 | } | |
1443 | ||
afe0cbf8 BR |
1444 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && |
1445 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { | |
1446 | u32 tx_ant, rx_ant; | |
7f531e03 BR |
1447 | if ((!rdev->wiphy.available_antennas_tx && |
1448 | !rdev->wiphy.available_antennas_rx) || | |
1449 | !rdev->ops->set_antenna) { | |
afe0cbf8 BR |
1450 | result = -EOPNOTSUPP; |
1451 | goto bad_res; | |
1452 | } | |
1453 | ||
1454 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); | |
1455 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); | |
1456 | ||
a7ffac95 | 1457 | /* reject antenna configurations which don't match the |
7f531e03 BR |
1458 | * available antenna masks, except for the "all" mask */ |
1459 | if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || | |
1460 | (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) { | |
a7ffac95 BR |
1461 | result = -EINVAL; |
1462 | goto bad_res; | |
1463 | } | |
1464 | ||
7f531e03 BR |
1465 | tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; |
1466 | rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; | |
a7ffac95 | 1467 | |
afe0cbf8 BR |
1468 | result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant); |
1469 | if (result) | |
1470 | goto bad_res; | |
1471 | } | |
1472 | ||
b9a5f8ca JM |
1473 | changed = 0; |
1474 | ||
1475 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
1476 | retry_short = nla_get_u8( | |
1477 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
1478 | if (retry_short == 0) { | |
1479 | result = -EINVAL; | |
1480 | goto bad_res; | |
1481 | } | |
1482 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
1483 | } | |
1484 | ||
1485 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
1486 | retry_long = nla_get_u8( | |
1487 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
1488 | if (retry_long == 0) { | |
1489 | result = -EINVAL; | |
1490 | goto bad_res; | |
1491 | } | |
1492 | changed |= WIPHY_PARAM_RETRY_LONG; | |
1493 | } | |
1494 | ||
1495 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
1496 | frag_threshold = nla_get_u32( | |
1497 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
1498 | if (frag_threshold < 256) { | |
1499 | result = -EINVAL; | |
1500 | goto bad_res; | |
1501 | } | |
1502 | if (frag_threshold != (u32) -1) { | |
1503 | /* | |
1504 | * Fragments (apart from the last one) are required to | |
1505 | * have even length. Make the fragmentation code | |
1506 | * simpler by stripping LSB should someone try to use | |
1507 | * odd threshold value. | |
1508 | */ | |
1509 | frag_threshold &= ~0x1; | |
1510 | } | |
1511 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
1512 | } | |
1513 | ||
1514 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
1515 | rts_threshold = nla_get_u32( | |
1516 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
1517 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
1518 | } | |
1519 | ||
81077e82 LT |
1520 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
1521 | coverage_class = nla_get_u8( | |
1522 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
1523 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
1524 | } | |
1525 | ||
b9a5f8ca JM |
1526 | if (changed) { |
1527 | u8 old_retry_short, old_retry_long; | |
1528 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 1529 | u8 old_coverage_class; |
b9a5f8ca JM |
1530 | |
1531 | if (!rdev->ops->set_wiphy_params) { | |
1532 | result = -EOPNOTSUPP; | |
1533 | goto bad_res; | |
1534 | } | |
1535 | ||
1536 | old_retry_short = rdev->wiphy.retry_short; | |
1537 | old_retry_long = rdev->wiphy.retry_long; | |
1538 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
1539 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 1540 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
1541 | |
1542 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1543 | rdev->wiphy.retry_short = retry_short; | |
1544 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1545 | rdev->wiphy.retry_long = retry_long; | |
1546 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
1547 | rdev->wiphy.frag_threshold = frag_threshold; | |
1548 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
1549 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
1550 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
1551 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca JM |
1552 | |
1553 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
1554 | if (result) { | |
1555 | rdev->wiphy.retry_short = old_retry_short; | |
1556 | rdev->wiphy.retry_long = old_retry_long; | |
1557 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
1558 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 1559 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
1560 | } |
1561 | } | |
72bdcf34 | 1562 | |
306d6112 | 1563 | bad_res: |
4bbf4d56 | 1564 | mutex_unlock(&rdev->mtx); |
f444de05 JB |
1565 | if (netdev) |
1566 | dev_put(netdev); | |
55682965 JB |
1567 | return result; |
1568 | } | |
1569 | ||
1570 | ||
1571 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 1572 | struct cfg80211_registered_device *rdev, |
55682965 JB |
1573 | struct net_device *dev) |
1574 | { | |
1575 | void *hdr; | |
1576 | ||
1577 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
1578 | if (!hdr) | |
1579 | return -1; | |
1580 | ||
9360ffd1 DM |
1581 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
1582 | nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
1583 | nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) || | |
1584 | nla_put_u32(msg, NL80211_ATTR_IFTYPE, | |
1585 | dev->ieee80211_ptr->iftype) || | |
1586 | nla_put_u32(msg, NL80211_ATTR_GENERATION, | |
1587 | rdev->devlist_generation ^ | |
1588 | (cfg80211_rdev_list_generation << 2))) | |
1589 | goto nla_put_failure; | |
f5ea9120 | 1590 | |
d91df0e3 PF |
1591 | if (rdev->ops->get_channel) { |
1592 | struct ieee80211_channel *chan; | |
1593 | enum nl80211_channel_type channel_type; | |
1594 | ||
1595 | chan = rdev->ops->get_channel(&rdev->wiphy, &channel_type); | |
59ef43e6 JL |
1596 | if (chan && |
1597 | (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, | |
1598 | chan->center_freq) || | |
1599 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
1600 | channel_type))) | |
1601 | goto nla_put_failure; | |
d91df0e3 PF |
1602 | } |
1603 | ||
55682965 JB |
1604 | return genlmsg_end(msg, hdr); |
1605 | ||
1606 | nla_put_failure: | |
bc3ed28c TG |
1607 | genlmsg_cancel(msg, hdr); |
1608 | return -EMSGSIZE; | |
55682965 JB |
1609 | } |
1610 | ||
1611 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
1612 | { | |
1613 | int wp_idx = 0; | |
1614 | int if_idx = 0; | |
1615 | int wp_start = cb->args[0]; | |
1616 | int if_start = cb->args[1]; | |
f5ea9120 | 1617 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1618 | struct wireless_dev *wdev; |
1619 | ||
a1794390 | 1620 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
1621 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1622 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1623 | continue; |
bba95fef JB |
1624 | if (wp_idx < wp_start) { |
1625 | wp_idx++; | |
55682965 | 1626 | continue; |
bba95fef | 1627 | } |
55682965 JB |
1628 | if_idx = 0; |
1629 | ||
f5ea9120 JB |
1630 | mutex_lock(&rdev->devlist_mtx); |
1631 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
bba95fef JB |
1632 | if (if_idx < if_start) { |
1633 | if_idx++; | |
55682965 | 1634 | continue; |
bba95fef | 1635 | } |
55682965 JB |
1636 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
1637 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
f5ea9120 JB |
1638 | rdev, wdev->netdev) < 0) { |
1639 | mutex_unlock(&rdev->devlist_mtx); | |
bba95fef JB |
1640 | goto out; |
1641 | } | |
1642 | if_idx++; | |
55682965 | 1643 | } |
f5ea9120 | 1644 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1645 | |
1646 | wp_idx++; | |
55682965 | 1647 | } |
bba95fef | 1648 | out: |
a1794390 | 1649 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1650 | |
1651 | cb->args[0] = wp_idx; | |
1652 | cb->args[1] = if_idx; | |
1653 | ||
1654 | return skb->len; | |
1655 | } | |
1656 | ||
1657 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1658 | { | |
1659 | struct sk_buff *msg; | |
4c476991 JB |
1660 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
1661 | struct net_device *netdev = info->user_ptr[1]; | |
55682965 | 1662 | |
fd2120ca | 1663 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1664 | if (!msg) |
4c476991 | 1665 | return -ENOMEM; |
55682965 | 1666 | |
d726405a | 1667 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
4c476991 JB |
1668 | dev, netdev) < 0) { |
1669 | nlmsg_free(msg); | |
1670 | return -ENOBUFS; | |
1671 | } | |
55682965 | 1672 | |
134e6375 | 1673 | return genlmsg_reply(msg, info); |
55682965 JB |
1674 | } |
1675 | ||
66f7ac50 MW |
1676 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
1677 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
1678 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
1679 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
1680 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
1681 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
1682 | }; | |
1683 | ||
1684 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
1685 | { | |
1686 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
1687 | int flag; | |
1688 | ||
1689 | *mntrflags = 0; | |
1690 | ||
1691 | if (!nla) | |
1692 | return -EINVAL; | |
1693 | ||
1694 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
1695 | nla, mntr_flags_policy)) | |
1696 | return -EINVAL; | |
1697 | ||
1698 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
1699 | if (flags[flag]) | |
1700 | *mntrflags |= (1<<flag); | |
1701 | ||
1702 | return 0; | |
1703 | } | |
1704 | ||
9bc383de | 1705 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
1706 | struct net_device *netdev, u8 use_4addr, |
1707 | enum nl80211_iftype iftype) | |
9bc383de | 1708 | { |
ad4bb6f8 | 1709 | if (!use_4addr) { |
f350a0a8 | 1710 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 1711 | return -EBUSY; |
9bc383de | 1712 | return 0; |
ad4bb6f8 | 1713 | } |
9bc383de JB |
1714 | |
1715 | switch (iftype) { | |
1716 | case NL80211_IFTYPE_AP_VLAN: | |
1717 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1718 | return 0; | |
1719 | break; | |
1720 | case NL80211_IFTYPE_STATION: | |
1721 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1722 | return 0; | |
1723 | break; | |
1724 | default: | |
1725 | break; | |
1726 | } | |
1727 | ||
1728 | return -EOPNOTSUPP; | |
1729 | } | |
1730 | ||
55682965 JB |
1731 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1732 | { | |
4c476991 | 1733 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1734 | struct vif_params params; |
e36d56b6 | 1735 | int err; |
04a773ad | 1736 | enum nl80211_iftype otype, ntype; |
4c476991 | 1737 | struct net_device *dev = info->user_ptr[1]; |
92ffe055 | 1738 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1739 | bool change = false; |
55682965 | 1740 | |
2ec600d6 LCC |
1741 | memset(¶ms, 0, sizeof(params)); |
1742 | ||
04a773ad | 1743 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1744 | |
723b038d | 1745 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1746 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1747 | if (otype != ntype) |
ac7f9cfa | 1748 | change = true; |
4c476991 JB |
1749 | if (ntype > NL80211_IFTYPE_MAX) |
1750 | return -EINVAL; | |
723b038d JB |
1751 | } |
1752 | ||
92ffe055 | 1753 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
29cbe68c JB |
1754 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1755 | ||
4c476991 JB |
1756 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
1757 | return -EINVAL; | |
29cbe68c JB |
1758 | if (netif_running(dev)) |
1759 | return -EBUSY; | |
1760 | ||
1761 | wdev_lock(wdev); | |
1762 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
1763 | IEEE80211_MAX_MESH_ID_LEN); | |
1764 | wdev->mesh_id_up_len = | |
1765 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1766 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
1767 | wdev->mesh_id_up_len); | |
1768 | wdev_unlock(wdev); | |
2ec600d6 LCC |
1769 | } |
1770 | ||
8b787643 FF |
1771 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1772 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1773 | change = true; | |
ad4bb6f8 | 1774 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de | 1775 | if (err) |
4c476991 | 1776 | return err; |
8b787643 FF |
1777 | } else { |
1778 | params.use_4addr = -1; | |
1779 | } | |
1780 | ||
92ffe055 | 1781 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
4c476991 JB |
1782 | if (ntype != NL80211_IFTYPE_MONITOR) |
1783 | return -EINVAL; | |
92ffe055 JB |
1784 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
1785 | &_flags); | |
ac7f9cfa | 1786 | if (err) |
4c476991 | 1787 | return err; |
ac7f9cfa JB |
1788 | |
1789 | flags = &_flags; | |
1790 | change = true; | |
92ffe055 | 1791 | } |
3b85875a | 1792 | |
ac7f9cfa | 1793 | if (change) |
3d54d255 | 1794 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1795 | else |
1796 | err = 0; | |
60719ffd | 1797 | |
9bc383de JB |
1798 | if (!err && params.use_4addr != -1) |
1799 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1800 | ||
55682965 JB |
1801 | return err; |
1802 | } | |
1803 | ||
1804 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1805 | { | |
4c476991 | 1806 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1807 | struct vif_params params; |
f9e10ce4 | 1808 | struct net_device *dev; |
55682965 JB |
1809 | int err; |
1810 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1811 | u32 flags; |
55682965 | 1812 | |
2ec600d6 LCC |
1813 | memset(¶ms, 0, sizeof(params)); |
1814 | ||
55682965 JB |
1815 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1816 | return -EINVAL; | |
1817 | ||
1818 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1819 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1820 | if (type > NL80211_IFTYPE_MAX) | |
1821 | return -EINVAL; | |
1822 | } | |
1823 | ||
79c97e97 | 1824 | if (!rdev->ops->add_virtual_intf || |
4c476991 JB |
1825 | !(rdev->wiphy.interface_modes & (1 << type))) |
1826 | return -EOPNOTSUPP; | |
55682965 | 1827 | |
9bc383de | 1828 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 1829 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 1830 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de | 1831 | if (err) |
4c476991 | 1832 | return err; |
9bc383de | 1833 | } |
8b787643 | 1834 | |
66f7ac50 MW |
1835 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
1836 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
1837 | &flags); | |
f9e10ce4 | 1838 | dev = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 1839 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 1840 | type, err ? NULL : &flags, ¶ms); |
f9e10ce4 JB |
1841 | if (IS_ERR(dev)) |
1842 | return PTR_ERR(dev); | |
2ec600d6 | 1843 | |
29cbe68c JB |
1844 | if (type == NL80211_IFTYPE_MESH_POINT && |
1845 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
1846 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
1847 | ||
1848 | wdev_lock(wdev); | |
1849 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
1850 | IEEE80211_MAX_MESH_ID_LEN); | |
1851 | wdev->mesh_id_up_len = | |
1852 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1853 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
1854 | wdev->mesh_id_up_len); | |
1855 | wdev_unlock(wdev); | |
1856 | } | |
1857 | ||
f9e10ce4 | 1858 | return 0; |
55682965 JB |
1859 | } |
1860 | ||
1861 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
1862 | { | |
4c476991 JB |
1863 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1864 | struct net_device *dev = info->user_ptr[1]; | |
55682965 | 1865 | |
4c476991 JB |
1866 | if (!rdev->ops->del_virtual_intf) |
1867 | return -EOPNOTSUPP; | |
55682965 | 1868 | |
4c476991 | 1869 | return rdev->ops->del_virtual_intf(&rdev->wiphy, dev); |
55682965 JB |
1870 | } |
1871 | ||
1d9d9213 SW |
1872 | static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) |
1873 | { | |
1874 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
1875 | struct net_device *dev = info->user_ptr[1]; | |
1876 | u16 noack_map; | |
1877 | ||
1878 | if (!info->attrs[NL80211_ATTR_NOACK_MAP]) | |
1879 | return -EINVAL; | |
1880 | ||
1881 | if (!rdev->ops->set_noack_map) | |
1882 | return -EOPNOTSUPP; | |
1883 | ||
1884 | noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]); | |
1885 | ||
1886 | return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map); | |
1887 | } | |
1888 | ||
41ade00f JB |
1889 | struct get_key_cookie { |
1890 | struct sk_buff *msg; | |
1891 | int error; | |
b9454e83 | 1892 | int idx; |
41ade00f JB |
1893 | }; |
1894 | ||
1895 | static void get_key_callback(void *c, struct key_params *params) | |
1896 | { | |
b9454e83 | 1897 | struct nlattr *key; |
41ade00f JB |
1898 | struct get_key_cookie *cookie = c; |
1899 | ||
9360ffd1 DM |
1900 | if ((params->key && |
1901 | nla_put(cookie->msg, NL80211_ATTR_KEY_DATA, | |
1902 | params->key_len, params->key)) || | |
1903 | (params->seq && | |
1904 | nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
1905 | params->seq_len, params->seq)) || | |
1906 | (params->cipher && | |
1907 | nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
1908 | params->cipher))) | |
1909 | goto nla_put_failure; | |
41ade00f | 1910 | |
b9454e83 JB |
1911 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
1912 | if (!key) | |
1913 | goto nla_put_failure; | |
1914 | ||
9360ffd1 DM |
1915 | if ((params->key && |
1916 | nla_put(cookie->msg, NL80211_KEY_DATA, | |
1917 | params->key_len, params->key)) || | |
1918 | (params->seq && | |
1919 | nla_put(cookie->msg, NL80211_KEY_SEQ, | |
1920 | params->seq_len, params->seq)) || | |
1921 | (params->cipher && | |
1922 | nla_put_u32(cookie->msg, NL80211_KEY_CIPHER, | |
1923 | params->cipher))) | |
1924 | goto nla_put_failure; | |
b9454e83 | 1925 | |
9360ffd1 DM |
1926 | if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx)) |
1927 | goto nla_put_failure; | |
b9454e83 JB |
1928 | |
1929 | nla_nest_end(cookie->msg, key); | |
1930 | ||
41ade00f JB |
1931 | return; |
1932 | nla_put_failure: | |
1933 | cookie->error = 1; | |
1934 | } | |
1935 | ||
1936 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
1937 | { | |
4c476991 | 1938 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 1939 | int err; |
4c476991 | 1940 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 1941 | u8 key_idx = 0; |
e31b8213 JB |
1942 | const u8 *mac_addr = NULL; |
1943 | bool pairwise; | |
41ade00f JB |
1944 | struct get_key_cookie cookie = { |
1945 | .error = 0, | |
1946 | }; | |
1947 | void *hdr; | |
1948 | struct sk_buff *msg; | |
1949 | ||
1950 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1951 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1952 | ||
3cfcf6ac | 1953 | if (key_idx > 5) |
41ade00f JB |
1954 | return -EINVAL; |
1955 | ||
1956 | if (info->attrs[NL80211_ATTR_MAC]) | |
1957 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1958 | ||
e31b8213 JB |
1959 | pairwise = !!mac_addr; |
1960 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
1961 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
1962 | if (kt >= NUM_NL80211_KEYTYPES) | |
1963 | return -EINVAL; | |
1964 | if (kt != NL80211_KEYTYPE_GROUP && | |
1965 | kt != NL80211_KEYTYPE_PAIRWISE) | |
1966 | return -EINVAL; | |
1967 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
1968 | } | |
1969 | ||
4c476991 JB |
1970 | if (!rdev->ops->get_key) |
1971 | return -EOPNOTSUPP; | |
41ade00f | 1972 | |
fd2120ca | 1973 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
1974 | if (!msg) |
1975 | return -ENOMEM; | |
41ade00f JB |
1976 | |
1977 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1978 | NL80211_CMD_NEW_KEY); | |
4c476991 JB |
1979 | if (IS_ERR(hdr)) |
1980 | return PTR_ERR(hdr); | |
41ade00f JB |
1981 | |
1982 | cookie.msg = msg; | |
b9454e83 | 1983 | cookie.idx = key_idx; |
41ade00f | 1984 | |
9360ffd1 DM |
1985 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
1986 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx)) | |
1987 | goto nla_put_failure; | |
1988 | if (mac_addr && | |
1989 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
1990 | goto nla_put_failure; | |
41ade00f | 1991 | |
e31b8213 JB |
1992 | if (pairwise && mac_addr && |
1993 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
1994 | return -ENOENT; | |
1995 | ||
1996 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise, | |
1997 | mac_addr, &cookie, get_key_callback); | |
41ade00f JB |
1998 | |
1999 | if (err) | |
6c95e2a2 | 2000 | goto free_msg; |
41ade00f JB |
2001 | |
2002 | if (cookie.error) | |
2003 | goto nla_put_failure; | |
2004 | ||
2005 | genlmsg_end(msg, hdr); | |
4c476991 | 2006 | return genlmsg_reply(msg, info); |
41ade00f JB |
2007 | |
2008 | nla_put_failure: | |
2009 | err = -ENOBUFS; | |
6c95e2a2 | 2010 | free_msg: |
41ade00f | 2011 | nlmsg_free(msg); |
41ade00f JB |
2012 | return err; |
2013 | } | |
2014 | ||
2015 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
2016 | { | |
4c476991 | 2017 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
b9454e83 | 2018 | struct key_parse key; |
41ade00f | 2019 | int err; |
4c476991 | 2020 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2021 | |
b9454e83 JB |
2022 | err = nl80211_parse_key(info, &key); |
2023 | if (err) | |
2024 | return err; | |
41ade00f | 2025 | |
b9454e83 | 2026 | if (key.idx < 0) |
41ade00f JB |
2027 | return -EINVAL; |
2028 | ||
b9454e83 JB |
2029 | /* only support setting default key */ |
2030 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
2031 | return -EINVAL; |
2032 | ||
dbd2fd65 | 2033 | wdev_lock(dev->ieee80211_ptr); |
3cfcf6ac | 2034 | |
dbd2fd65 JB |
2035 | if (key.def) { |
2036 | if (!rdev->ops->set_default_key) { | |
2037 | err = -EOPNOTSUPP; | |
2038 | goto out; | |
2039 | } | |
41ade00f | 2040 | |
dbd2fd65 JB |
2041 | err = nl80211_key_allowed(dev->ieee80211_ptr); |
2042 | if (err) | |
2043 | goto out; | |
2044 | ||
dbd2fd65 JB |
2045 | err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx, |
2046 | key.def_uni, key.def_multi); | |
2047 | ||
2048 | if (err) | |
2049 | goto out; | |
fffd0934 | 2050 | |
3d23e349 | 2051 | #ifdef CONFIG_CFG80211_WEXT |
dbd2fd65 JB |
2052 | dev->ieee80211_ptr->wext.default_key = key.idx; |
2053 | #endif | |
2054 | } else { | |
2055 | if (key.def_uni || !key.def_multi) { | |
2056 | err = -EINVAL; | |
2057 | goto out; | |
2058 | } | |
2059 | ||
2060 | if (!rdev->ops->set_default_mgmt_key) { | |
2061 | err = -EOPNOTSUPP; | |
2062 | goto out; | |
2063 | } | |
2064 | ||
2065 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2066 | if (err) | |
2067 | goto out; | |
2068 | ||
2069 | err = rdev->ops->set_default_mgmt_key(&rdev->wiphy, | |
2070 | dev, key.idx); | |
2071 | if (err) | |
2072 | goto out; | |
2073 | ||
2074 | #ifdef CONFIG_CFG80211_WEXT | |
2075 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; | |
08645126 | 2076 | #endif |
dbd2fd65 JB |
2077 | } |
2078 | ||
2079 | out: | |
fffd0934 | 2080 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 2081 | |
41ade00f JB |
2082 | return err; |
2083 | } | |
2084 | ||
2085 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
2086 | { | |
4c476991 | 2087 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fffd0934 | 2088 | int err; |
4c476991 | 2089 | struct net_device *dev = info->user_ptr[1]; |
b9454e83 | 2090 | struct key_parse key; |
e31b8213 | 2091 | const u8 *mac_addr = NULL; |
41ade00f | 2092 | |
b9454e83 JB |
2093 | err = nl80211_parse_key(info, &key); |
2094 | if (err) | |
2095 | return err; | |
41ade00f | 2096 | |
b9454e83 | 2097 | if (!key.p.key) |
41ade00f JB |
2098 | return -EINVAL; |
2099 | ||
41ade00f JB |
2100 | if (info->attrs[NL80211_ATTR_MAC]) |
2101 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2102 | ||
e31b8213 JB |
2103 | if (key.type == -1) { |
2104 | if (mac_addr) | |
2105 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2106 | else | |
2107 | key.type = NL80211_KEYTYPE_GROUP; | |
2108 | } | |
2109 | ||
2110 | /* for now */ | |
2111 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2112 | key.type != NL80211_KEYTYPE_GROUP) | |
2113 | return -EINVAL; | |
2114 | ||
4c476991 JB |
2115 | if (!rdev->ops->add_key) |
2116 | return -EOPNOTSUPP; | |
25e47c18 | 2117 | |
e31b8213 JB |
2118 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
2119 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2120 | mac_addr)) | |
4c476991 | 2121 | return -EINVAL; |
41ade00f | 2122 | |
fffd0934 JB |
2123 | wdev_lock(dev->ieee80211_ptr); |
2124 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2125 | if (!err) | |
2126 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
e31b8213 | 2127 | key.type == NL80211_KEYTYPE_PAIRWISE, |
fffd0934 JB |
2128 | mac_addr, &key.p); |
2129 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f | 2130 | |
41ade00f JB |
2131 | return err; |
2132 | } | |
2133 | ||
2134 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
2135 | { | |
4c476991 | 2136 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 2137 | int err; |
4c476991 | 2138 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2139 | u8 *mac_addr = NULL; |
b9454e83 | 2140 | struct key_parse key; |
41ade00f | 2141 | |
b9454e83 JB |
2142 | err = nl80211_parse_key(info, &key); |
2143 | if (err) | |
2144 | return err; | |
41ade00f JB |
2145 | |
2146 | if (info->attrs[NL80211_ATTR_MAC]) | |
2147 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2148 | ||
e31b8213 JB |
2149 | if (key.type == -1) { |
2150 | if (mac_addr) | |
2151 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2152 | else | |
2153 | key.type = NL80211_KEYTYPE_GROUP; | |
2154 | } | |
2155 | ||
2156 | /* for now */ | |
2157 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2158 | key.type != NL80211_KEYTYPE_GROUP) | |
2159 | return -EINVAL; | |
2160 | ||
4c476991 JB |
2161 | if (!rdev->ops->del_key) |
2162 | return -EOPNOTSUPP; | |
41ade00f | 2163 | |
fffd0934 JB |
2164 | wdev_lock(dev->ieee80211_ptr); |
2165 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
e31b8213 JB |
2166 | |
2167 | if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && | |
2168 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2169 | err = -ENOENT; | |
2170 | ||
fffd0934 | 2171 | if (!err) |
e31b8213 JB |
2172 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, |
2173 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2174 | mac_addr); | |
41ade00f | 2175 | |
3d23e349 | 2176 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 2177 | if (!err) { |
b9454e83 | 2178 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 2179 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 2180 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
2181 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
2182 | } | |
2183 | #endif | |
fffd0934 | 2184 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 2185 | |
41ade00f JB |
2186 | return err; |
2187 | } | |
2188 | ||
8860020e JB |
2189 | static int nl80211_parse_beacon(struct genl_info *info, |
2190 | struct cfg80211_beacon_data *bcn) | |
ed1b6cc7 | 2191 | { |
8860020e | 2192 | bool haveinfo = false; |
ed1b6cc7 | 2193 | |
9946ecfb JM |
2194 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) || |
2195 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) || | |
2196 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) || | |
2197 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP])) | |
f4a11bb0 JB |
2198 | return -EINVAL; |
2199 | ||
8860020e | 2200 | memset(bcn, 0, sizeof(*bcn)); |
ed1b6cc7 | 2201 | |
ed1b6cc7 | 2202 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { |
8860020e JB |
2203 | bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); |
2204 | bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
2205 | if (!bcn->head_len) | |
2206 | return -EINVAL; | |
2207 | haveinfo = true; | |
ed1b6cc7 JB |
2208 | } |
2209 | ||
2210 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
8860020e JB |
2211 | bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); |
2212 | bcn->tail_len = | |
ed1b6cc7 | 2213 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); |
8860020e | 2214 | haveinfo = true; |
ed1b6cc7 JB |
2215 | } |
2216 | ||
4c476991 JB |
2217 | if (!haveinfo) |
2218 | return -EINVAL; | |
3b85875a | 2219 | |
9946ecfb | 2220 | if (info->attrs[NL80211_ATTR_IE]) { |
8860020e JB |
2221 | bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]); |
2222 | bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
9946ecfb JM |
2223 | } |
2224 | ||
2225 | if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) { | |
8860020e | 2226 | bcn->proberesp_ies = |
9946ecfb | 2227 | nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]); |
8860020e | 2228 | bcn->proberesp_ies_len = |
9946ecfb JM |
2229 | nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]); |
2230 | } | |
2231 | ||
2232 | if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) { | |
8860020e | 2233 | bcn->assocresp_ies = |
9946ecfb | 2234 | nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
8860020e | 2235 | bcn->assocresp_ies_len = |
9946ecfb JM |
2236 | nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
2237 | } | |
2238 | ||
00f740e1 | 2239 | if (info->attrs[NL80211_ATTR_PROBE_RESP]) { |
8860020e | 2240 | bcn->probe_resp = |
00f740e1 | 2241 | nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]); |
8860020e | 2242 | bcn->probe_resp_len = |
00f740e1 AN |
2243 | nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]); |
2244 | } | |
2245 | ||
8860020e JB |
2246 | return 0; |
2247 | } | |
2248 | ||
2249 | static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) | |
2250 | { | |
2251 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2252 | struct net_device *dev = info->user_ptr[1]; | |
2253 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2254 | struct cfg80211_ap_settings params; | |
2255 | int err; | |
2256 | ||
2257 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2258 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2259 | return -EOPNOTSUPP; | |
2260 | ||
2261 | if (!rdev->ops->start_ap) | |
2262 | return -EOPNOTSUPP; | |
2263 | ||
2264 | if (wdev->beacon_interval) | |
2265 | return -EALREADY; | |
2266 | ||
2267 | memset(¶ms, 0, sizeof(params)); | |
2268 | ||
2269 | /* these are required for START_AP */ | |
2270 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
2271 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
2272 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) | |
2273 | return -EINVAL; | |
2274 | ||
2275 | err = nl80211_parse_beacon(info, ¶ms.beacon); | |
2276 | if (err) | |
2277 | return err; | |
2278 | ||
2279 | params.beacon_interval = | |
2280 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
2281 | params.dtim_period = | |
2282 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
2283 | ||
2284 | err = cfg80211_validate_beacon_int(rdev, params.beacon_interval); | |
2285 | if (err) | |
2286 | return err; | |
2287 | ||
2288 | /* | |
2289 | * In theory, some of these attributes should be required here | |
2290 | * but since they were not used when the command was originally | |
2291 | * added, keep them optional for old user space programs to let | |
2292 | * them continue to work with drivers that do not need the | |
2293 | * additional information -- drivers must check! | |
2294 | */ | |
2295 | if (info->attrs[NL80211_ATTR_SSID]) { | |
2296 | params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
2297 | params.ssid_len = | |
2298 | nla_len(info->attrs[NL80211_ATTR_SSID]); | |
2299 | if (params.ssid_len == 0 || | |
2300 | params.ssid_len > IEEE80211_MAX_SSID_LEN) | |
2301 | return -EINVAL; | |
2302 | } | |
2303 | ||
2304 | if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) { | |
2305 | params.hidden_ssid = nla_get_u32( | |
2306 | info->attrs[NL80211_ATTR_HIDDEN_SSID]); | |
2307 | if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE && | |
2308 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN && | |
2309 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS) | |
2310 | return -EINVAL; | |
2311 | } | |
2312 | ||
2313 | params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; | |
2314 | ||
2315 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
2316 | params.auth_type = nla_get_u32( | |
2317 | info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
2318 | if (!nl80211_valid_auth_type(params.auth_type)) | |
2319 | return -EINVAL; | |
2320 | } else | |
2321 | params.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
2322 | ||
2323 | err = nl80211_crypto_settings(rdev, info, ¶ms.crypto, | |
2324 | NL80211_MAX_NR_CIPHER_SUITES); | |
2325 | if (err) | |
2326 | return err; | |
2327 | ||
1b658f11 VT |
2328 | if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) { |
2329 | if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) | |
2330 | return -EOPNOTSUPP; | |
2331 | params.inactivity_timeout = nla_get_u16( | |
2332 | info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); | |
2333 | } | |
2334 | ||
aa430da4 JB |
2335 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
2336 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
2337 | ||
2338 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && | |
2339 | !nl80211_valid_channel_type(info, &channel_type)) | |
2340 | return -EINVAL; | |
2341 | ||
2342 | params.channel = rdev_freq_to_chan(rdev, | |
2343 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
2344 | channel_type); | |
2345 | if (!params.channel) | |
2346 | return -EINVAL; | |
2347 | params.channel_type = channel_type; | |
2348 | } else if (wdev->preset_chan) { | |
2349 | params.channel = wdev->preset_chan; | |
2350 | params.channel_type = wdev->preset_chantype; | |
2351 | } else | |
2352 | return -EINVAL; | |
2353 | ||
2354 | if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel, | |
2355 | params.channel_type)) | |
2356 | return -EINVAL; | |
2357 | ||
8860020e JB |
2358 | err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms); |
2359 | if (!err) | |
2360 | wdev->beacon_interval = params.beacon_interval; | |
56d1893d | 2361 | return err; |
ed1b6cc7 JB |
2362 | } |
2363 | ||
8860020e JB |
2364 | static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info) |
2365 | { | |
2366 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2367 | struct net_device *dev = info->user_ptr[1]; | |
2368 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2369 | struct cfg80211_beacon_data params; | |
2370 | int err; | |
2371 | ||
2372 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2373 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2374 | return -EOPNOTSUPP; | |
2375 | ||
2376 | if (!rdev->ops->change_beacon) | |
2377 | return -EOPNOTSUPP; | |
2378 | ||
2379 | if (!wdev->beacon_interval) | |
2380 | return -EINVAL; | |
2381 | ||
2382 | err = nl80211_parse_beacon(info, ¶ms); | |
2383 | if (err) | |
2384 | return err; | |
2385 | ||
2386 | return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms); | |
2387 | } | |
2388 | ||
2389 | static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info) | |
ed1b6cc7 | 2390 | { |
4c476991 JB |
2391 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2392 | struct net_device *dev = info->user_ptr[1]; | |
56d1893d JB |
2393 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
2394 | int err; | |
ed1b6cc7 | 2395 | |
8860020e | 2396 | if (!rdev->ops->stop_ap) |
4c476991 | 2397 | return -EOPNOTSUPP; |
ed1b6cc7 | 2398 | |
074ac8df | 2399 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
2400 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2401 | return -EOPNOTSUPP; | |
3b85875a | 2402 | |
8860020e JB |
2403 | if (!wdev->beacon_interval) |
2404 | return -ENOENT; | |
2405 | ||
2406 | err = rdev->ops->stop_ap(&rdev->wiphy, dev); | |
56d1893d JB |
2407 | if (!err) |
2408 | wdev->beacon_interval = 0; | |
2409 | return err; | |
ed1b6cc7 JB |
2410 | } |
2411 | ||
5727ef1b JB |
2412 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
2413 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
2414 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
2415 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 2416 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
b39c48fa | 2417 | [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG }, |
d83023da | 2418 | [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG }, |
5727ef1b JB |
2419 | }; |
2420 | ||
eccb8e8f | 2421 | static int parse_station_flags(struct genl_info *info, |
bdd3ae3d | 2422 | enum nl80211_iftype iftype, |
eccb8e8f | 2423 | struct station_parameters *params) |
5727ef1b JB |
2424 | { |
2425 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 2426 | struct nlattr *nla; |
5727ef1b JB |
2427 | int flag; |
2428 | ||
eccb8e8f JB |
2429 | /* |
2430 | * Try parsing the new attribute first so userspace | |
2431 | * can specify both for older kernels. | |
2432 | */ | |
2433 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
2434 | if (nla) { | |
2435 | struct nl80211_sta_flag_update *sta_flags; | |
2436 | ||
2437 | sta_flags = nla_data(nla); | |
2438 | params->sta_flags_mask = sta_flags->mask; | |
2439 | params->sta_flags_set = sta_flags->set; | |
2440 | if ((params->sta_flags_mask | | |
2441 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
2442 | return -EINVAL; | |
2443 | return 0; | |
2444 | } | |
2445 | ||
2446 | /* if present, parse the old attribute */ | |
5727ef1b | 2447 | |
eccb8e8f | 2448 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
2449 | if (!nla) |
2450 | return 0; | |
2451 | ||
2452 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
2453 | nla, sta_flags_policy)) | |
2454 | return -EINVAL; | |
2455 | ||
bdd3ae3d JB |
2456 | /* |
2457 | * Only allow certain flags for interface types so that | |
2458 | * other attributes are silently ignored. Remember that | |
2459 | * this is backward compatibility code with old userspace | |
2460 | * and shouldn't be hit in other cases anyway. | |
2461 | */ | |
2462 | switch (iftype) { | |
2463 | case NL80211_IFTYPE_AP: | |
2464 | case NL80211_IFTYPE_AP_VLAN: | |
2465 | case NL80211_IFTYPE_P2P_GO: | |
2466 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
2467 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
2468 | BIT(NL80211_STA_FLAG_WME) | | |
2469 | BIT(NL80211_STA_FLAG_MFP); | |
2470 | break; | |
2471 | case NL80211_IFTYPE_P2P_CLIENT: | |
2472 | case NL80211_IFTYPE_STATION: | |
2473 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
2474 | BIT(NL80211_STA_FLAG_TDLS_PEER); | |
2475 | break; | |
2476 | case NL80211_IFTYPE_MESH_POINT: | |
2477 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
2478 | BIT(NL80211_STA_FLAG_MFP) | | |
2479 | BIT(NL80211_STA_FLAG_AUTHORIZED); | |
2480 | default: | |
2481 | return -EINVAL; | |
2482 | } | |
5727ef1b | 2483 | |
3383b5a6 JB |
2484 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) { |
2485 | if (flags[flag]) { | |
eccb8e8f | 2486 | params->sta_flags_set |= (1<<flag); |
5727ef1b | 2487 | |
3383b5a6 JB |
2488 | /* no longer support new API additions in old API */ |
2489 | if (flag > NL80211_STA_FLAG_MAX_OLD_API) | |
2490 | return -EINVAL; | |
2491 | } | |
2492 | } | |
2493 | ||
5727ef1b JB |
2494 | return 0; |
2495 | } | |
2496 | ||
c8dcfd8a FF |
2497 | static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, |
2498 | int attr) | |
2499 | { | |
2500 | struct nlattr *rate; | |
2501 | u16 bitrate; | |
2502 | ||
2503 | rate = nla_nest_start(msg, attr); | |
2504 | if (!rate) | |
2505 | goto nla_put_failure; | |
2506 | ||
2507 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
2508 | bitrate = cfg80211_calculate_bitrate(info); | |
9360ffd1 DM |
2509 | if ((bitrate > 0 && |
2510 | nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate)) || | |
2511 | ((info->flags & RATE_INFO_FLAGS_MCS) && | |
2512 | nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) || | |
2513 | ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) && | |
2514 | nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) || | |
2515 | ((info->flags & RATE_INFO_FLAGS_SHORT_GI) && | |
2516 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))) | |
2517 | goto nla_put_failure; | |
c8dcfd8a FF |
2518 | |
2519 | nla_nest_end(msg, rate); | |
2520 | return true; | |
2521 | ||
2522 | nla_put_failure: | |
2523 | return false; | |
2524 | } | |
2525 | ||
fd5b74dc | 2526 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
66266b3a JL |
2527 | int flags, |
2528 | struct cfg80211_registered_device *rdev, | |
2529 | struct net_device *dev, | |
98b62183 | 2530 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
2531 | { |
2532 | void *hdr; | |
f4263c98 | 2533 | struct nlattr *sinfoattr, *bss_param; |
fd5b74dc JB |
2534 | |
2535 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2536 | if (!hdr) | |
2537 | return -1; | |
2538 | ||
9360ffd1 DM |
2539 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
2540 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
2541 | nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation)) | |
2542 | goto nla_put_failure; | |
f5ea9120 | 2543 | |
2ec600d6 LCC |
2544 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
2545 | if (!sinfoattr) | |
fd5b74dc | 2546 | goto nla_put_failure; |
9360ffd1 DM |
2547 | if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) && |
2548 | nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME, | |
2549 | sinfo->connected_time)) | |
2550 | goto nla_put_failure; | |
2551 | if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) && | |
2552 | nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
2553 | sinfo->inactive_time)) | |
2554 | goto nla_put_failure; | |
2555 | if ((sinfo->filled & STATION_INFO_RX_BYTES) && | |
2556 | nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES, | |
2557 | sinfo->rx_bytes)) | |
2558 | goto nla_put_failure; | |
2559 | if ((sinfo->filled & STATION_INFO_TX_BYTES) && | |
2560 | nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES, | |
2561 | sinfo->tx_bytes)) | |
2562 | goto nla_put_failure; | |
2563 | if ((sinfo->filled & STATION_INFO_LLID) && | |
2564 | nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid)) | |
2565 | goto nla_put_failure; | |
2566 | if ((sinfo->filled & STATION_INFO_PLID) && | |
2567 | nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid)) | |
2568 | goto nla_put_failure; | |
2569 | if ((sinfo->filled & STATION_INFO_PLINK_STATE) && | |
2570 | nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE, | |
2571 | sinfo->plink_state)) | |
2572 | goto nla_put_failure; | |
66266b3a JL |
2573 | switch (rdev->wiphy.signal_type) { |
2574 | case CFG80211_SIGNAL_TYPE_MBM: | |
9360ffd1 DM |
2575 | if ((sinfo->filled & STATION_INFO_SIGNAL) && |
2576 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL, | |
2577 | sinfo->signal)) | |
2578 | goto nla_put_failure; | |
2579 | if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) && | |
2580 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG, | |
2581 | sinfo->signal_avg)) | |
2582 | goto nla_put_failure; | |
66266b3a JL |
2583 | break; |
2584 | default: | |
2585 | break; | |
2586 | } | |
420e7fab | 2587 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { |
c8dcfd8a FF |
2588 | if (!nl80211_put_sta_rate(msg, &sinfo->txrate, |
2589 | NL80211_STA_INFO_TX_BITRATE)) | |
2590 | goto nla_put_failure; | |
2591 | } | |
2592 | if (sinfo->filled & STATION_INFO_RX_BITRATE) { | |
2593 | if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, | |
2594 | NL80211_STA_INFO_RX_BITRATE)) | |
420e7fab | 2595 | goto nla_put_failure; |
420e7fab | 2596 | } |
9360ffd1 DM |
2597 | if ((sinfo->filled & STATION_INFO_RX_PACKETS) && |
2598 | nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS, | |
2599 | sinfo->rx_packets)) | |
2600 | goto nla_put_failure; | |
2601 | if ((sinfo->filled & STATION_INFO_TX_PACKETS) && | |
2602 | nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS, | |
2603 | sinfo->tx_packets)) | |
2604 | goto nla_put_failure; | |
2605 | if ((sinfo->filled & STATION_INFO_TX_RETRIES) && | |
2606 | nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES, | |
2607 | sinfo->tx_retries)) | |
2608 | goto nla_put_failure; | |
2609 | if ((sinfo->filled & STATION_INFO_TX_FAILED) && | |
2610 | nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED, | |
2611 | sinfo->tx_failed)) | |
2612 | goto nla_put_failure; | |
2613 | if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) && | |
2614 | nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS, | |
2615 | sinfo->beacon_loss_count)) | |
2616 | goto nla_put_failure; | |
f4263c98 PS |
2617 | if (sinfo->filled & STATION_INFO_BSS_PARAM) { |
2618 | bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM); | |
2619 | if (!bss_param) | |
2620 | goto nla_put_failure; | |
2621 | ||
9360ffd1 DM |
2622 | if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) && |
2623 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) || | |
2624 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) && | |
2625 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) || | |
2626 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) && | |
2627 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) || | |
2628 | nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD, | |
2629 | sinfo->bss_param.dtim_period) || | |
2630 | nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL, | |
2631 | sinfo->bss_param.beacon_interval)) | |
2632 | goto nla_put_failure; | |
f4263c98 PS |
2633 | |
2634 | nla_nest_end(msg, bss_param); | |
2635 | } | |
9360ffd1 DM |
2636 | if ((sinfo->filled & STATION_INFO_STA_FLAGS) && |
2637 | nla_put(msg, NL80211_STA_INFO_STA_FLAGS, | |
2638 | sizeof(struct nl80211_sta_flag_update), | |
2639 | &sinfo->sta_flags)) | |
2640 | goto nla_put_failure; | |
7eab0f64 JL |
2641 | if ((sinfo->filled & STATION_INFO_T_OFFSET) && |
2642 | nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET, | |
2643 | sinfo->t_offset)) | |
2644 | goto nla_put_failure; | |
2ec600d6 | 2645 | nla_nest_end(msg, sinfoattr); |
fd5b74dc | 2646 | |
9360ffd1 DM |
2647 | if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) && |
2648 | nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len, | |
2649 | sinfo->assoc_req_ies)) | |
2650 | goto nla_put_failure; | |
50d3dfb7 | 2651 | |
fd5b74dc JB |
2652 | return genlmsg_end(msg, hdr); |
2653 | ||
2654 | nla_put_failure: | |
bc3ed28c TG |
2655 | genlmsg_cancel(msg, hdr); |
2656 | return -EMSGSIZE; | |
fd5b74dc JB |
2657 | } |
2658 | ||
2ec600d6 | 2659 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 2660 | struct netlink_callback *cb) |
2ec600d6 | 2661 | { |
2ec600d6 LCC |
2662 | struct station_info sinfo; |
2663 | struct cfg80211_registered_device *dev; | |
bba95fef | 2664 | struct net_device *netdev; |
2ec600d6 | 2665 | u8 mac_addr[ETH_ALEN]; |
bba95fef | 2666 | int sta_idx = cb->args[1]; |
2ec600d6 | 2667 | int err; |
2ec600d6 | 2668 | |
67748893 JB |
2669 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
2670 | if (err) | |
2671 | return err; | |
bba95fef JB |
2672 | |
2673 | if (!dev->ops->dump_station) { | |
eec60b03 | 2674 | err = -EOPNOTSUPP; |
bba95fef JB |
2675 | goto out_err; |
2676 | } | |
2677 | ||
bba95fef | 2678 | while (1) { |
f612cedf | 2679 | memset(&sinfo, 0, sizeof(sinfo)); |
bba95fef JB |
2680 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, |
2681 | mac_addr, &sinfo); | |
2682 | if (err == -ENOENT) | |
2683 | break; | |
2684 | if (err) | |
3b85875a | 2685 | goto out_err; |
bba95fef JB |
2686 | |
2687 | if (nl80211_send_station(skb, | |
2688 | NETLINK_CB(cb->skb).pid, | |
2689 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
66266b3a | 2690 | dev, netdev, mac_addr, |
bba95fef JB |
2691 | &sinfo) < 0) |
2692 | goto out; | |
2693 | ||
2694 | sta_idx++; | |
2695 | } | |
2696 | ||
2697 | ||
2698 | out: | |
2699 | cb->args[1] = sta_idx; | |
2700 | err = skb->len; | |
bba95fef | 2701 | out_err: |
67748893 | 2702 | nl80211_finish_netdev_dump(dev); |
bba95fef JB |
2703 | |
2704 | return err; | |
2ec600d6 | 2705 | } |
fd5b74dc | 2706 | |
5727ef1b JB |
2707 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
2708 | { | |
4c476991 JB |
2709 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2710 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 | 2711 | struct station_info sinfo; |
fd5b74dc JB |
2712 | struct sk_buff *msg; |
2713 | u8 *mac_addr = NULL; | |
4c476991 | 2714 | int err; |
fd5b74dc | 2715 | |
2ec600d6 | 2716 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
2717 | |
2718 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2719 | return -EINVAL; | |
2720 | ||
2721 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2722 | ||
4c476991 JB |
2723 | if (!rdev->ops->get_station) |
2724 | return -EOPNOTSUPP; | |
3b85875a | 2725 | |
4c476991 | 2726 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
fd5b74dc | 2727 | if (err) |
4c476991 | 2728 | return err; |
2ec600d6 | 2729 | |
fd2120ca | 2730 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc | 2731 | if (!msg) |
4c476991 | 2732 | return -ENOMEM; |
fd5b74dc JB |
2733 | |
2734 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
66266b3a | 2735 | rdev, dev, mac_addr, &sinfo) < 0) { |
4c476991 JB |
2736 | nlmsg_free(msg); |
2737 | return -ENOBUFS; | |
2738 | } | |
3b85875a | 2739 | |
4c476991 | 2740 | return genlmsg_reply(msg, info); |
5727ef1b JB |
2741 | } |
2742 | ||
2743 | /* | |
c258d2de | 2744 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 2745 | */ |
80b99899 JB |
2746 | static struct net_device *get_vlan(struct genl_info *info, |
2747 | struct cfg80211_registered_device *rdev) | |
5727ef1b | 2748 | { |
463d0183 | 2749 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
80b99899 JB |
2750 | struct net_device *v; |
2751 | int ret; | |
2752 | ||
2753 | if (!vlanattr) | |
2754 | return NULL; | |
2755 | ||
2756 | v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); | |
2757 | if (!v) | |
2758 | return ERR_PTR(-ENODEV); | |
2759 | ||
2760 | if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { | |
2761 | ret = -EINVAL; | |
2762 | goto error; | |
5727ef1b | 2763 | } |
80b99899 JB |
2764 | |
2765 | if (!netif_running(v)) { | |
2766 | ret = -ENETDOWN; | |
2767 | goto error; | |
2768 | } | |
2769 | ||
2770 | return v; | |
2771 | error: | |
2772 | dev_put(v); | |
2773 | return ERR_PTR(ret); | |
5727ef1b JB |
2774 | } |
2775 | ||
2776 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
2777 | { | |
4c476991 | 2778 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 2779 | int err; |
4c476991 | 2780 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
2781 | struct station_parameters params; |
2782 | u8 *mac_addr = NULL; | |
2783 | ||
2784 | memset(¶ms, 0, sizeof(params)); | |
2785 | ||
2786 | params.listen_interval = -1; | |
57cf8043 | 2787 | params.plink_state = -1; |
5727ef1b JB |
2788 | |
2789 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
2790 | return -EINVAL; | |
2791 | ||
2792 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2793 | return -EINVAL; | |
2794 | ||
2795 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2796 | ||
2797 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
2798 | params.supported_rates = | |
2799 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2800 | params.supported_rates_len = | |
2801 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2802 | } | |
2803 | ||
2804 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
2805 | params.listen_interval = | |
2806 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
2807 | ||
36aedc90 JM |
2808 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2809 | params.ht_capa = | |
2810 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
2811 | ||
bdd90d5e JB |
2812 | if (!rdev->ops->change_station) |
2813 | return -EOPNOTSUPP; | |
2814 | ||
bdd3ae3d | 2815 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
2816 | return -EINVAL; |
2817 | ||
2ec600d6 LCC |
2818 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
2819 | params.plink_action = | |
2820 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
2821 | ||
9c3990aa JC |
2822 | if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) |
2823 | params.plink_state = | |
2824 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); | |
2825 | ||
a97f4424 JB |
2826 | switch (dev->ieee80211_ptr->iftype) { |
2827 | case NL80211_IFTYPE_AP: | |
2828 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 2829 | case NL80211_IFTYPE_P2P_GO: |
a97f4424 JB |
2830 | /* disallow mesh-specific things */ |
2831 | if (params.plink_action) | |
bdd90d5e JB |
2832 | return -EINVAL; |
2833 | ||
2834 | /* TDLS can't be set, ... */ | |
2835 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
2836 | return -EINVAL; | |
2837 | /* | |
2838 | * ... but don't bother the driver with it. This works around | |
2839 | * a hostapd/wpa_supplicant issue -- it always includes the | |
2840 | * TLDS_PEER flag in the mask even for AP mode. | |
2841 | */ | |
2842 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
2843 | ||
2844 | /* accept only the listed bits */ | |
2845 | if (params.sta_flags_mask & | |
2846 | ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
2847 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
2848 | BIT(NL80211_STA_FLAG_WME) | | |
2849 | BIT(NL80211_STA_FLAG_MFP))) | |
2850 | return -EINVAL; | |
2851 | ||
2852 | /* must be last in here for error handling */ | |
2853 | params.vlan = get_vlan(info, rdev); | |
2854 | if (IS_ERR(params.vlan)) | |
2855 | return PTR_ERR(params.vlan); | |
a97f4424 | 2856 | break; |
074ac8df | 2857 | case NL80211_IFTYPE_P2P_CLIENT: |
a97f4424 | 2858 | case NL80211_IFTYPE_STATION: |
bdd90d5e JB |
2859 | /* |
2860 | * Don't allow userspace to change the TDLS_PEER flag, | |
2861 | * but silently ignore attempts to change it since we | |
2862 | * don't have state here to verify that it doesn't try | |
2863 | * to change the flag. | |
2864 | */ | |
2865 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
267335d6 AQ |
2866 | /* fall through */ |
2867 | case NL80211_IFTYPE_ADHOC: | |
2868 | /* disallow things sta doesn't support */ | |
2869 | if (params.plink_action) | |
2870 | return -EINVAL; | |
2871 | if (params.ht_capa) | |
2872 | return -EINVAL; | |
2873 | if (params.listen_interval >= 0) | |
2874 | return -EINVAL; | |
bdd90d5e JB |
2875 | /* reject any changes other than AUTHORIZED */ |
2876 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
2877 | return -EINVAL; | |
a97f4424 JB |
2878 | break; |
2879 | case NL80211_IFTYPE_MESH_POINT: | |
2880 | /* disallow things mesh doesn't support */ | |
2881 | if (params.vlan) | |
bdd90d5e | 2882 | return -EINVAL; |
a97f4424 | 2883 | if (params.ht_capa) |
bdd90d5e | 2884 | return -EINVAL; |
a97f4424 | 2885 | if (params.listen_interval >= 0) |
bdd90d5e JB |
2886 | return -EINVAL; |
2887 | /* | |
2888 | * No special handling for TDLS here -- the userspace | |
2889 | * mesh code doesn't have this bug. | |
2890 | */ | |
b39c48fa JC |
2891 | if (params.sta_flags_mask & |
2892 | ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
8429828e | 2893 | BIT(NL80211_STA_FLAG_MFP) | |
b39c48fa | 2894 | BIT(NL80211_STA_FLAG_AUTHORIZED))) |
bdd90d5e | 2895 | return -EINVAL; |
a97f4424 JB |
2896 | break; |
2897 | default: | |
bdd90d5e | 2898 | return -EOPNOTSUPP; |
034d655e JB |
2899 | } |
2900 | ||
bdd90d5e | 2901 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 2902 | |
79c97e97 | 2903 | err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b | 2904 | |
5727ef1b JB |
2905 | if (params.vlan) |
2906 | dev_put(params.vlan); | |
3b85875a | 2907 | |
5727ef1b JB |
2908 | return err; |
2909 | } | |
2910 | ||
c75786c9 EP |
2911 | static struct nla_policy |
2912 | nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = { | |
2913 | [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, | |
2914 | [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, | |
2915 | }; | |
2916 | ||
5727ef1b JB |
2917 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) |
2918 | { | |
4c476991 | 2919 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 2920 | int err; |
4c476991 | 2921 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
2922 | struct station_parameters params; |
2923 | u8 *mac_addr = NULL; | |
2924 | ||
2925 | memset(¶ms, 0, sizeof(params)); | |
2926 | ||
2927 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2928 | return -EINVAL; | |
2929 | ||
5727ef1b JB |
2930 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
2931 | return -EINVAL; | |
2932 | ||
2933 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
2934 | return -EINVAL; | |
2935 | ||
0e956c13 TLSC |
2936 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
2937 | return -EINVAL; | |
2938 | ||
5727ef1b JB |
2939 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2940 | params.supported_rates = | |
2941 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2942 | params.supported_rates_len = | |
2943 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2944 | params.listen_interval = | |
2945 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 2946 | |
0e956c13 TLSC |
2947 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
2948 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
2949 | return -EINVAL; | |
51b50fbe | 2950 | |
36aedc90 JM |
2951 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2952 | params.ht_capa = | |
2953 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 2954 | |
96b78dff JC |
2955 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
2956 | params.plink_action = | |
2957 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
2958 | ||
bdd90d5e JB |
2959 | if (!rdev->ops->add_station) |
2960 | return -EOPNOTSUPP; | |
2961 | ||
bdd3ae3d | 2962 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
2963 | return -EINVAL; |
2964 | ||
bdd90d5e JB |
2965 | switch (dev->ieee80211_ptr->iftype) { |
2966 | case NL80211_IFTYPE_AP: | |
2967 | case NL80211_IFTYPE_AP_VLAN: | |
2968 | case NL80211_IFTYPE_P2P_GO: | |
2969 | /* parse WME attributes if sta is WME capable */ | |
2970 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && | |
2971 | (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) && | |
2972 | info->attrs[NL80211_ATTR_STA_WME]) { | |
2973 | struct nlattr *tb[NL80211_STA_WME_MAX + 1]; | |
2974 | struct nlattr *nla; | |
2975 | ||
2976 | nla = info->attrs[NL80211_ATTR_STA_WME]; | |
2977 | err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla, | |
2978 | nl80211_sta_wme_policy); | |
2979 | if (err) | |
2980 | return err; | |
2981 | ||
2982 | if (tb[NL80211_STA_WME_UAPSD_QUEUES]) | |
2983 | params.uapsd_queues = | |
2984 | nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]); | |
2985 | if (params.uapsd_queues & | |
2986 | ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) | |
2987 | return -EINVAL; | |
c75786c9 | 2988 | |
bdd90d5e JB |
2989 | if (tb[NL80211_STA_WME_MAX_SP]) |
2990 | params.max_sp = | |
2991 | nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); | |
c75786c9 | 2992 | |
bdd90d5e JB |
2993 | if (params.max_sp & |
2994 | ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) | |
2995 | return -EINVAL; | |
4319e193 | 2996 | |
bdd90d5e JB |
2997 | params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; |
2998 | } | |
2999 | /* TDLS peers cannot be added */ | |
3000 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
4319e193 | 3001 | return -EINVAL; |
bdd90d5e JB |
3002 | /* but don't bother the driver with it */ |
3003 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3b9ce80c | 3004 | |
bdd90d5e JB |
3005 | /* must be last in here for error handling */ |
3006 | params.vlan = get_vlan(info, rdev); | |
3007 | if (IS_ERR(params.vlan)) | |
3008 | return PTR_ERR(params.vlan); | |
3009 | break; | |
3010 | case NL80211_IFTYPE_MESH_POINT: | |
3011 | /* TDLS peers cannot be added */ | |
3012 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
3013 | return -EINVAL; | |
3014 | break; | |
3015 | case NL80211_IFTYPE_STATION: | |
3016 | /* Only TDLS peers can be added */ | |
3017 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
3018 | return -EINVAL; | |
3019 | /* Can only add if TDLS ... */ | |
3020 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)) | |
3021 | return -EOPNOTSUPP; | |
3022 | /* ... with external setup is supported */ | |
3023 | if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) | |
3024 | return -EOPNOTSUPP; | |
3025 | break; | |
3026 | default: | |
3027 | return -EOPNOTSUPP; | |
c75786c9 EP |
3028 | } |
3029 | ||
bdd90d5e | 3030 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 3031 | |
79c97e97 | 3032 | err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b | 3033 | |
5727ef1b JB |
3034 | if (params.vlan) |
3035 | dev_put(params.vlan); | |
5727ef1b JB |
3036 | return err; |
3037 | } | |
3038 | ||
3039 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
3040 | { | |
4c476991 JB |
3041 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3042 | struct net_device *dev = info->user_ptr[1]; | |
5727ef1b JB |
3043 | u8 *mac_addr = NULL; |
3044 | ||
3045 | if (info->attrs[NL80211_ATTR_MAC]) | |
3046 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3047 | ||
e80cf853 | 3048 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 | 3049 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
074ac8df | 3050 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
3051 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3052 | return -EINVAL; | |
5727ef1b | 3053 | |
4c476991 JB |
3054 | if (!rdev->ops->del_station) |
3055 | return -EOPNOTSUPP; | |
3b85875a | 3056 | |
4c476991 | 3057 | return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
3058 | } |
3059 | ||
2ec600d6 LCC |
3060 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
3061 | int flags, struct net_device *dev, | |
3062 | u8 *dst, u8 *next_hop, | |
3063 | struct mpath_info *pinfo) | |
3064 | { | |
3065 | void *hdr; | |
3066 | struct nlattr *pinfoattr; | |
3067 | ||
3068 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
3069 | if (!hdr) | |
3070 | return -1; | |
3071 | ||
9360ffd1 DM |
3072 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
3073 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || | |
3074 | nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) || | |
3075 | nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation)) | |
3076 | goto nla_put_failure; | |
f5ea9120 | 3077 | |
2ec600d6 LCC |
3078 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
3079 | if (!pinfoattr) | |
3080 | goto nla_put_failure; | |
9360ffd1 DM |
3081 | if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) && |
3082 | nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
3083 | pinfo->frame_qlen)) | |
3084 | goto nla_put_failure; | |
3085 | if (((pinfo->filled & MPATH_INFO_SN) && | |
3086 | nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) || | |
3087 | ((pinfo->filled & MPATH_INFO_METRIC) && | |
3088 | nla_put_u32(msg, NL80211_MPATH_INFO_METRIC, | |
3089 | pinfo->metric)) || | |
3090 | ((pinfo->filled & MPATH_INFO_EXPTIME) && | |
3091 | nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME, | |
3092 | pinfo->exptime)) || | |
3093 | ((pinfo->filled & MPATH_INFO_FLAGS) && | |
3094 | nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS, | |
3095 | pinfo->flags)) || | |
3096 | ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) && | |
3097 | nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
3098 | pinfo->discovery_timeout)) || | |
3099 | ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) && | |
3100 | nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
3101 | pinfo->discovery_retries))) | |
3102 | goto nla_put_failure; | |
2ec600d6 LCC |
3103 | |
3104 | nla_nest_end(msg, pinfoattr); | |
3105 | ||
3106 | return genlmsg_end(msg, hdr); | |
3107 | ||
3108 | nla_put_failure: | |
bc3ed28c TG |
3109 | genlmsg_cancel(msg, hdr); |
3110 | return -EMSGSIZE; | |
2ec600d6 LCC |
3111 | } |
3112 | ||
3113 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 3114 | struct netlink_callback *cb) |
2ec600d6 | 3115 | { |
2ec600d6 LCC |
3116 | struct mpath_info pinfo; |
3117 | struct cfg80211_registered_device *dev; | |
bba95fef | 3118 | struct net_device *netdev; |
2ec600d6 LCC |
3119 | u8 dst[ETH_ALEN]; |
3120 | u8 next_hop[ETH_ALEN]; | |
bba95fef | 3121 | int path_idx = cb->args[1]; |
2ec600d6 | 3122 | int err; |
2ec600d6 | 3123 | |
67748893 JB |
3124 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
3125 | if (err) | |
3126 | return err; | |
bba95fef JB |
3127 | |
3128 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 3129 | err = -EOPNOTSUPP; |
bba95fef JB |
3130 | goto out_err; |
3131 | } | |
3132 | ||
eec60b03 JM |
3133 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
3134 | err = -EOPNOTSUPP; | |
0448b5fc | 3135 | goto out_err; |
eec60b03 JM |
3136 | } |
3137 | ||
bba95fef JB |
3138 | while (1) { |
3139 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
3140 | dst, next_hop, &pinfo); | |
3141 | if (err == -ENOENT) | |
2ec600d6 | 3142 | break; |
bba95fef | 3143 | if (err) |
3b85875a | 3144 | goto out_err; |
2ec600d6 | 3145 | |
bba95fef JB |
3146 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
3147 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3148 | netdev, dst, next_hop, | |
3149 | &pinfo) < 0) | |
3150 | goto out; | |
2ec600d6 | 3151 | |
bba95fef | 3152 | path_idx++; |
2ec600d6 | 3153 | } |
2ec600d6 | 3154 | |
2ec600d6 | 3155 | |
bba95fef JB |
3156 | out: |
3157 | cb->args[1] = path_idx; | |
3158 | err = skb->len; | |
bba95fef | 3159 | out_err: |
67748893 | 3160 | nl80211_finish_netdev_dump(dev); |
bba95fef | 3161 | return err; |
2ec600d6 LCC |
3162 | } |
3163 | ||
3164 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
3165 | { | |
4c476991 | 3166 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 3167 | int err; |
4c476991 | 3168 | struct net_device *dev = info->user_ptr[1]; |
2ec600d6 LCC |
3169 | struct mpath_info pinfo; |
3170 | struct sk_buff *msg; | |
3171 | u8 *dst = NULL; | |
3172 | u8 next_hop[ETH_ALEN]; | |
3173 | ||
3174 | memset(&pinfo, 0, sizeof(pinfo)); | |
3175 | ||
3176 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3177 | return -EINVAL; | |
3178 | ||
3179 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3180 | ||
4c476991 JB |
3181 | if (!rdev->ops->get_mpath) |
3182 | return -EOPNOTSUPP; | |
2ec600d6 | 3183 | |
4c476991 JB |
3184 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3185 | return -EOPNOTSUPP; | |
eec60b03 | 3186 | |
79c97e97 | 3187 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 | 3188 | if (err) |
4c476991 | 3189 | return err; |
2ec600d6 | 3190 | |
fd2120ca | 3191 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 | 3192 | if (!msg) |
4c476991 | 3193 | return -ENOMEM; |
2ec600d6 LCC |
3194 | |
3195 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
4c476991 JB |
3196 | dev, dst, next_hop, &pinfo) < 0) { |
3197 | nlmsg_free(msg); | |
3198 | return -ENOBUFS; | |
3199 | } | |
3b85875a | 3200 | |
4c476991 | 3201 | return genlmsg_reply(msg, info); |
2ec600d6 LCC |
3202 | } |
3203 | ||
3204 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
3205 | { | |
4c476991 JB |
3206 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3207 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3208 | u8 *dst = NULL; |
3209 | u8 *next_hop = NULL; | |
3210 | ||
3211 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3212 | return -EINVAL; | |
3213 | ||
3214 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
3215 | return -EINVAL; | |
3216 | ||
3217 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3218 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
3219 | ||
4c476991 JB |
3220 | if (!rdev->ops->change_mpath) |
3221 | return -EOPNOTSUPP; | |
35a8efe1 | 3222 | |
4c476991 JB |
3223 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3224 | return -EOPNOTSUPP; | |
2ec600d6 | 3225 | |
4c476991 | 3226 | return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 | 3227 | } |
4c476991 | 3228 | |
2ec600d6 LCC |
3229 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
3230 | { | |
4c476991 JB |
3231 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3232 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3233 | u8 *dst = NULL; |
3234 | u8 *next_hop = NULL; | |
3235 | ||
3236 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3237 | return -EINVAL; | |
3238 | ||
3239 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
3240 | return -EINVAL; | |
3241 | ||
3242 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3243 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
3244 | ||
4c476991 JB |
3245 | if (!rdev->ops->add_mpath) |
3246 | return -EOPNOTSUPP; | |
35a8efe1 | 3247 | |
4c476991 JB |
3248 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3249 | return -EOPNOTSUPP; | |
2ec600d6 | 3250 | |
4c476991 | 3251 | return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
3252 | } |
3253 | ||
3254 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
3255 | { | |
4c476991 JB |
3256 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3257 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3258 | u8 *dst = NULL; |
3259 | ||
3260 | if (info->attrs[NL80211_ATTR_MAC]) | |
3261 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3262 | ||
4c476991 JB |
3263 | if (!rdev->ops->del_mpath) |
3264 | return -EOPNOTSUPP; | |
3b85875a | 3265 | |
4c476991 | 3266 | return rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
3267 | } |
3268 | ||
9f1ba906 JM |
3269 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
3270 | { | |
4c476991 JB |
3271 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3272 | struct net_device *dev = info->user_ptr[1]; | |
9f1ba906 JM |
3273 | struct bss_parameters params; |
3274 | ||
3275 | memset(¶ms, 0, sizeof(params)); | |
3276 | /* default to not changing parameters */ | |
3277 | params.use_cts_prot = -1; | |
3278 | params.use_short_preamble = -1; | |
3279 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 3280 | params.ap_isolate = -1; |
50b12f59 | 3281 | params.ht_opmode = -1; |
9f1ba906 JM |
3282 | |
3283 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
3284 | params.use_cts_prot = | |
3285 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
3286 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
3287 | params.use_short_preamble = | |
3288 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
3289 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
3290 | params.use_short_slot_time = | |
3291 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
3292 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
3293 | params.basic_rates = | |
3294 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3295 | params.basic_rates_len = | |
3296 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3297 | } | |
fd8aaaf3 FF |
3298 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
3299 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
50b12f59 HS |
3300 | if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) |
3301 | params.ht_opmode = | |
3302 | nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); | |
9f1ba906 | 3303 | |
4c476991 JB |
3304 | if (!rdev->ops->change_bss) |
3305 | return -EOPNOTSUPP; | |
9f1ba906 | 3306 | |
074ac8df | 3307 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
3308 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3309 | return -EOPNOTSUPP; | |
3b85875a | 3310 | |
4c476991 | 3311 | return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
3312 | } |
3313 | ||
b54452b0 | 3314 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
3315 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
3316 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
3317 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
3318 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
3319 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
3320 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
3321 | }; | |
3322 | ||
3323 | static int parse_reg_rule(struct nlattr *tb[], | |
3324 | struct ieee80211_reg_rule *reg_rule) | |
3325 | { | |
3326 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
3327 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
3328 | ||
3329 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
3330 | return -EINVAL; | |
3331 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
3332 | return -EINVAL; | |
3333 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
3334 | return -EINVAL; | |
3335 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
3336 | return -EINVAL; | |
3337 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
3338 | return -EINVAL; | |
3339 | ||
3340 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
3341 | ||
3342 | freq_range->start_freq_khz = | |
3343 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
3344 | freq_range->end_freq_khz = | |
3345 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
3346 | freq_range->max_bandwidth_khz = | |
3347 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
3348 | ||
3349 | power_rule->max_eirp = | |
3350 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
3351 | ||
3352 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
3353 | power_rule->max_antenna_gain = | |
3354 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
3355 | ||
3356 | return 0; | |
3357 | } | |
3358 | ||
3359 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
3360 | { | |
3361 | int r; | |
3362 | char *data = NULL; | |
3363 | ||
80778f18 LR |
3364 | /* |
3365 | * You should only get this when cfg80211 hasn't yet initialized | |
3366 | * completely when built-in to the kernel right between the time | |
3367 | * window between nl80211_init() and regulatory_init(), if that is | |
3368 | * even possible. | |
3369 | */ | |
3370 | mutex_lock(&cfg80211_mutex); | |
3371 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
3372 | mutex_unlock(&cfg80211_mutex); |
3373 | return -EINPROGRESS; | |
80778f18 | 3374 | } |
fe33eb39 | 3375 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 3376 | |
fe33eb39 LR |
3377 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
3378 | return -EINVAL; | |
b2e1b302 LR |
3379 | |
3380 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
3381 | ||
fe33eb39 LR |
3382 | r = regulatory_hint_user(data); |
3383 | ||
b2e1b302 LR |
3384 | return r; |
3385 | } | |
3386 | ||
24bdd9f4 | 3387 | static int nl80211_get_mesh_config(struct sk_buff *skb, |
29cbe68c | 3388 | struct genl_info *info) |
93da9cc1 | 3389 | { |
4c476991 | 3390 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 3391 | struct net_device *dev = info->user_ptr[1]; |
29cbe68c JB |
3392 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
3393 | struct mesh_config cur_params; | |
3394 | int err = 0; | |
93da9cc1 | 3395 | void *hdr; |
3396 | struct nlattr *pinfoattr; | |
3397 | struct sk_buff *msg; | |
3398 | ||
29cbe68c JB |
3399 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
3400 | return -EOPNOTSUPP; | |
3401 | ||
24bdd9f4 | 3402 | if (!rdev->ops->get_mesh_config) |
4c476991 | 3403 | return -EOPNOTSUPP; |
f3f92586 | 3404 | |
29cbe68c JB |
3405 | wdev_lock(wdev); |
3406 | /* If not connected, get default parameters */ | |
3407 | if (!wdev->mesh_id_len) | |
3408 | memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); | |
3409 | else | |
24bdd9f4 | 3410 | err = rdev->ops->get_mesh_config(&rdev->wiphy, dev, |
29cbe68c JB |
3411 | &cur_params); |
3412 | wdev_unlock(wdev); | |
3413 | ||
93da9cc1 | 3414 | if (err) |
4c476991 | 3415 | return err; |
93da9cc1 | 3416 | |
3417 | /* Draw up a netlink message to send back */ | |
fd2120ca | 3418 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
3419 | if (!msg) |
3420 | return -ENOMEM; | |
93da9cc1 | 3421 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, |
24bdd9f4 | 3422 | NL80211_CMD_GET_MESH_CONFIG); |
93da9cc1 | 3423 | if (!hdr) |
efe1cf0c | 3424 | goto out; |
24bdd9f4 | 3425 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); |
93da9cc1 | 3426 | if (!pinfoattr) |
3427 | goto nla_put_failure; | |
9360ffd1 DM |
3428 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
3429 | nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
3430 | cur_params.dot11MeshRetryTimeout) || | |
3431 | nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
3432 | cur_params.dot11MeshConfirmTimeout) || | |
3433 | nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
3434 | cur_params.dot11MeshHoldingTimeout) || | |
3435 | nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
3436 | cur_params.dot11MeshMaxPeerLinks) || | |
3437 | nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
3438 | cur_params.dot11MeshMaxRetries) || | |
3439 | nla_put_u8(msg, NL80211_MESHCONF_TTL, | |
3440 | cur_params.dot11MeshTTL) || | |
3441 | nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL, | |
3442 | cur_params.element_ttl) || | |
3443 | nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
3444 | cur_params.auto_open_plinks) || | |
7eab0f64 JL |
3445 | nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
3446 | cur_params.dot11MeshNbrOffsetMaxNeighbor) || | |
9360ffd1 DM |
3447 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
3448 | cur_params.dot11MeshHWMPmaxPREQretries) || | |
3449 | nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
3450 | cur_params.path_refresh_time) || | |
3451 | nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
3452 | cur_params.min_discovery_timeout) || | |
3453 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
3454 | cur_params.dot11MeshHWMPactivePathTimeout) || | |
3455 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
3456 | cur_params.dot11MeshHWMPpreqMinInterval) || | |
3457 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
3458 | cur_params.dot11MeshHWMPperrMinInterval) || | |
3459 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
3460 | cur_params.dot11MeshHWMPnetDiameterTraversalTime) || | |
3461 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, | |
3462 | cur_params.dot11MeshHWMPRootMode) || | |
3463 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
3464 | cur_params.dot11MeshHWMPRannInterval) || | |
3465 | nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
3466 | cur_params.dot11MeshGateAnnouncementProtocol) || | |
3467 | nla_put_u8(msg, NL80211_MESHCONF_FORWARDING, | |
3468 | cur_params.dot11MeshForwarding) || | |
3469 | nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, | |
70c33eaa AN |
3470 | cur_params.rssi_threshold) || |
3471 | nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE, | |
3472 | cur_params.ht_opmode)) | |
9360ffd1 | 3473 | goto nla_put_failure; |
93da9cc1 | 3474 | nla_nest_end(msg, pinfoattr); |
3475 | genlmsg_end(msg, hdr); | |
4c476991 | 3476 | return genlmsg_reply(msg, info); |
93da9cc1 | 3477 | |
3b85875a | 3478 | nla_put_failure: |
93da9cc1 | 3479 | genlmsg_cancel(msg, hdr); |
efe1cf0c | 3480 | out: |
d080e275 | 3481 | nlmsg_free(msg); |
4c476991 | 3482 | return -ENOBUFS; |
93da9cc1 | 3483 | } |
3484 | ||
b54452b0 | 3485 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 3486 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
3487 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
3488 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
3489 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
3490 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
3491 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
45904f21 | 3492 | [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, |
93da9cc1 | 3493 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, |
d299a1f2 | 3494 | [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 }, |
93da9cc1 | 3495 | |
3496 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
3497 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
3498 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
3499 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
3500 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
dca7e943 | 3501 | [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 }, |
93da9cc1 | 3502 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, |
699403db | 3503 | [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 }, |
0507e159 | 3504 | [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 }, |
16dd7267 | 3505 | [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 }, |
94f90656 | 3506 | [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 }, |
55335137 | 3507 | [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32}, |
70c33eaa | 3508 | [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16}, |
93da9cc1 | 3509 | }; |
3510 | ||
c80d545d JC |
3511 | static const struct nla_policy |
3512 | nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { | |
d299a1f2 | 3513 | [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 }, |
c80d545d JC |
3514 | [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, |
3515 | [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, | |
15d5dda6 | 3516 | [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, |
581a8b0f | 3517 | [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY, |
c80d545d | 3518 | .len = IEEE80211_MAX_DATA_LEN }, |
b130e5ce | 3519 | [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, |
c80d545d JC |
3520 | }; |
3521 | ||
24bdd9f4 | 3522 | static int nl80211_parse_mesh_config(struct genl_info *info, |
bd90fdcc JB |
3523 | struct mesh_config *cfg, |
3524 | u32 *mask_out) | |
93da9cc1 | 3525 | { |
93da9cc1 | 3526 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; |
bd90fdcc | 3527 | u32 mask = 0; |
93da9cc1 | 3528 | |
bd90fdcc JB |
3529 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ |
3530 | do {\ | |
3531 | if (table[attr_num]) {\ | |
3532 | cfg->param = nla_fn(table[attr_num]); \ | |
3533 | mask |= (1 << (attr_num - 1)); \ | |
3534 | } \ | |
3535 | } while (0);\ | |
3536 | ||
3537 | ||
24bdd9f4 | 3538 | if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) |
93da9cc1 | 3539 | return -EINVAL; |
3540 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
24bdd9f4 | 3541 | info->attrs[NL80211_ATTR_MESH_CONFIG], |
bd90fdcc | 3542 | nl80211_meshconf_params_policy)) |
93da9cc1 | 3543 | return -EINVAL; |
3544 | ||
93da9cc1 | 3545 | /* This makes sure that there aren't more than 32 mesh config |
3546 | * parameters (otherwise our bitfield scheme would not work.) */ | |
3547 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
3548 | ||
3549 | /* Fill in the params struct */ | |
93da9cc1 | 3550 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, |
3551 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
3552 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
3553 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
3554 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
3555 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
3556 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
3557 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
3558 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
3559 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
3560 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
3561 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
45904f21 JC |
3562 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, |
3563 | mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8); | |
93da9cc1 | 3564 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, |
3565 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
d299a1f2 JC |
3566 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, |
3567 | mask, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, | |
3568 | nla_get_u32); | |
93da9cc1 | 3569 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, |
3570 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
3571 | nla_get_u8); | |
3572 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
3573 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
3574 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
3575 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
3576 | nla_get_u16); | |
3577 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
3578 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
3579 | nla_get_u32); | |
3580 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
3581 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
3582 | nla_get_u16); | |
dca7e943 TP |
3583 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, |
3584 | mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
3585 | nla_get_u16); | |
93da9cc1 | 3586 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
3587 | dot11MeshHWMPnetDiameterTraversalTime, | |
3588 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
3589 | nla_get_u16); | |
63c5723b RP |
3590 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
3591 | dot11MeshHWMPRootMode, mask, | |
3592 | NL80211_MESHCONF_HWMP_ROOTMODE, | |
3593 | nla_get_u8); | |
0507e159 JC |
3594 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
3595 | dot11MeshHWMPRannInterval, mask, | |
3596 | NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
3597 | nla_get_u16); | |
16dd7267 JC |
3598 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
3599 | dot11MeshGateAnnouncementProtocol, mask, | |
3600 | NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
3601 | nla_get_u8); | |
94f90656 CYY |
3602 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, |
3603 | mask, NL80211_MESHCONF_FORWARDING, nla_get_u8); | |
55335137 AN |
3604 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, |
3605 | mask, NL80211_MESHCONF_RSSI_THRESHOLD, nla_get_u32); | |
70c33eaa AN |
3606 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, |
3607 | mask, NL80211_MESHCONF_HT_OPMODE, nla_get_u16); | |
bd90fdcc JB |
3608 | if (mask_out) |
3609 | *mask_out = mask; | |
c80d545d | 3610 | |
bd90fdcc JB |
3611 | return 0; |
3612 | ||
3613 | #undef FILL_IN_MESH_PARAM_IF_SET | |
3614 | } | |
3615 | ||
c80d545d JC |
3616 | static int nl80211_parse_mesh_setup(struct genl_info *info, |
3617 | struct mesh_setup *setup) | |
3618 | { | |
3619 | struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; | |
3620 | ||
3621 | if (!info->attrs[NL80211_ATTR_MESH_SETUP]) | |
3622 | return -EINVAL; | |
3623 | if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX, | |
3624 | info->attrs[NL80211_ATTR_MESH_SETUP], | |
3625 | nl80211_mesh_setup_params_policy)) | |
3626 | return -EINVAL; | |
3627 | ||
d299a1f2 JC |
3628 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC]) |
3629 | setup->sync_method = | |
3630 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ? | |
3631 | IEEE80211_SYNC_METHOD_VENDOR : | |
3632 | IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET; | |
3633 | ||
c80d545d JC |
3634 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) |
3635 | setup->path_sel_proto = | |
3636 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? | |
3637 | IEEE80211_PATH_PROTOCOL_VENDOR : | |
3638 | IEEE80211_PATH_PROTOCOL_HWMP; | |
3639 | ||
3640 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) | |
3641 | setup->path_metric = | |
3642 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? | |
3643 | IEEE80211_PATH_METRIC_VENDOR : | |
3644 | IEEE80211_PATH_METRIC_AIRTIME; | |
3645 | ||
581a8b0f JC |
3646 | |
3647 | if (tb[NL80211_MESH_SETUP_IE]) { | |
c80d545d | 3648 | struct nlattr *ieattr = |
581a8b0f | 3649 | tb[NL80211_MESH_SETUP_IE]; |
c80d545d JC |
3650 | if (!is_valid_ie_attr(ieattr)) |
3651 | return -EINVAL; | |
581a8b0f JC |
3652 | setup->ie = nla_data(ieattr); |
3653 | setup->ie_len = nla_len(ieattr); | |
c80d545d | 3654 | } |
b130e5ce JC |
3655 | setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); |
3656 | setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); | |
c80d545d JC |
3657 | |
3658 | return 0; | |
3659 | } | |
3660 | ||
24bdd9f4 | 3661 | static int nl80211_update_mesh_config(struct sk_buff *skb, |
29cbe68c | 3662 | struct genl_info *info) |
bd90fdcc JB |
3663 | { |
3664 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3665 | struct net_device *dev = info->user_ptr[1]; | |
29cbe68c | 3666 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bd90fdcc JB |
3667 | struct mesh_config cfg; |
3668 | u32 mask; | |
3669 | int err; | |
3670 | ||
29cbe68c JB |
3671 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
3672 | return -EOPNOTSUPP; | |
3673 | ||
24bdd9f4 | 3674 | if (!rdev->ops->update_mesh_config) |
bd90fdcc JB |
3675 | return -EOPNOTSUPP; |
3676 | ||
24bdd9f4 | 3677 | err = nl80211_parse_mesh_config(info, &cfg, &mask); |
bd90fdcc JB |
3678 | if (err) |
3679 | return err; | |
3680 | ||
29cbe68c JB |
3681 | wdev_lock(wdev); |
3682 | if (!wdev->mesh_id_len) | |
3683 | err = -ENOLINK; | |
3684 | ||
3685 | if (!err) | |
24bdd9f4 | 3686 | err = rdev->ops->update_mesh_config(&rdev->wiphy, dev, |
29cbe68c JB |
3687 | mask, &cfg); |
3688 | ||
3689 | wdev_unlock(wdev); | |
3690 | ||
3691 | return err; | |
93da9cc1 | 3692 | } |
3693 | ||
f130347c LR |
3694 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
3695 | { | |
3696 | struct sk_buff *msg; | |
3697 | void *hdr = NULL; | |
3698 | struct nlattr *nl_reg_rules; | |
3699 | unsigned int i; | |
3700 | int err = -EINVAL; | |
3701 | ||
a1794390 | 3702 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
3703 | |
3704 | if (!cfg80211_regdomain) | |
3705 | goto out; | |
3706 | ||
fd2120ca | 3707 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
3708 | if (!msg) { |
3709 | err = -ENOBUFS; | |
3710 | goto out; | |
3711 | } | |
3712 | ||
3713 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
3714 | NL80211_CMD_GET_REG); | |
3715 | if (!hdr) | |
efe1cf0c | 3716 | goto put_failure; |
f130347c | 3717 | |
9360ffd1 DM |
3718 | if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, |
3719 | cfg80211_regdomain->alpha2) || | |
3720 | (cfg80211_regdomain->dfs_region && | |
3721 | nla_put_u8(msg, NL80211_ATTR_DFS_REGION, | |
3722 | cfg80211_regdomain->dfs_region))) | |
3723 | goto nla_put_failure; | |
f130347c LR |
3724 | |
3725 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
3726 | if (!nl_reg_rules) | |
3727 | goto nla_put_failure; | |
3728 | ||
3729 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
3730 | struct nlattr *nl_reg_rule; | |
3731 | const struct ieee80211_reg_rule *reg_rule; | |
3732 | const struct ieee80211_freq_range *freq_range; | |
3733 | const struct ieee80211_power_rule *power_rule; | |
3734 | ||
3735 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
3736 | freq_range = ®_rule->freq_range; | |
3737 | power_rule = ®_rule->power_rule; | |
3738 | ||
3739 | nl_reg_rule = nla_nest_start(msg, i); | |
3740 | if (!nl_reg_rule) | |
3741 | goto nla_put_failure; | |
3742 | ||
9360ffd1 DM |
3743 | if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS, |
3744 | reg_rule->flags) || | |
3745 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
3746 | freq_range->start_freq_khz) || | |
3747 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
3748 | freq_range->end_freq_khz) || | |
3749 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
3750 | freq_range->max_bandwidth_khz) || | |
3751 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
3752 | power_rule->max_antenna_gain) || | |
3753 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
3754 | power_rule->max_eirp)) | |
3755 | goto nla_put_failure; | |
f130347c LR |
3756 | |
3757 | nla_nest_end(msg, nl_reg_rule); | |
3758 | } | |
3759 | ||
3760 | nla_nest_end(msg, nl_reg_rules); | |
3761 | ||
3762 | genlmsg_end(msg, hdr); | |
134e6375 | 3763 | err = genlmsg_reply(msg, info); |
f130347c LR |
3764 | goto out; |
3765 | ||
3766 | nla_put_failure: | |
3767 | genlmsg_cancel(msg, hdr); | |
efe1cf0c | 3768 | put_failure: |
d080e275 | 3769 | nlmsg_free(msg); |
f130347c LR |
3770 | err = -EMSGSIZE; |
3771 | out: | |
a1794390 | 3772 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
3773 | return err; |
3774 | } | |
3775 | ||
b2e1b302 LR |
3776 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
3777 | { | |
3778 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
3779 | struct nlattr *nl_reg_rule; | |
3780 | char *alpha2 = NULL; | |
3781 | int rem_reg_rules = 0, r = 0; | |
3782 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
8b60b078 | 3783 | u8 dfs_region = 0; |
b2e1b302 LR |
3784 | struct ieee80211_regdomain *rd = NULL; |
3785 | ||
3786 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
3787 | return -EINVAL; | |
3788 | ||
3789 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
3790 | return -EINVAL; | |
3791 | ||
3792 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
3793 | ||
8b60b078 LR |
3794 | if (info->attrs[NL80211_ATTR_DFS_REGION]) |
3795 | dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]); | |
3796 | ||
b2e1b302 LR |
3797 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
3798 | rem_reg_rules) { | |
3799 | num_rules++; | |
3800 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 3801 | return -EINVAL; |
b2e1b302 LR |
3802 | } |
3803 | ||
61405e97 LR |
3804 | mutex_lock(&cfg80211_mutex); |
3805 | ||
d0e18f83 LR |
3806 | if (!reg_is_valid_request(alpha2)) { |
3807 | r = -EINVAL; | |
3808 | goto bad_reg; | |
3809 | } | |
b2e1b302 LR |
3810 | |
3811 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
3812 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
3813 | ||
3814 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
3815 | if (!rd) { |
3816 | r = -ENOMEM; | |
3817 | goto bad_reg; | |
3818 | } | |
b2e1b302 LR |
3819 | |
3820 | rd->n_reg_rules = num_rules; | |
3821 | rd->alpha2[0] = alpha2[0]; | |
3822 | rd->alpha2[1] = alpha2[1]; | |
3823 | ||
8b60b078 LR |
3824 | /* |
3825 | * Disable DFS master mode if the DFS region was | |
3826 | * not supported or known on this kernel. | |
3827 | */ | |
3828 | if (reg_supported_dfs_region(dfs_region)) | |
3829 | rd->dfs_region = dfs_region; | |
3830 | ||
b2e1b302 LR |
3831 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
3832 | rem_reg_rules) { | |
3833 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
3834 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
3835 | reg_rule_policy); | |
3836 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
3837 | if (r) | |
3838 | goto bad_reg; | |
3839 | ||
3840 | rule_idx++; | |
3841 | ||
d0e18f83 LR |
3842 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
3843 | r = -EINVAL; | |
b2e1b302 | 3844 | goto bad_reg; |
d0e18f83 | 3845 | } |
b2e1b302 LR |
3846 | } |
3847 | ||
3848 | BUG_ON(rule_idx != num_rules); | |
3849 | ||
b2e1b302 | 3850 | r = set_regdom(rd); |
61405e97 | 3851 | |
a1794390 | 3852 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 3853 | |
b2e1b302 LR |
3854 | return r; |
3855 | ||
d2372b31 | 3856 | bad_reg: |
61405e97 | 3857 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 3858 | kfree(rd); |
d0e18f83 | 3859 | return r; |
b2e1b302 LR |
3860 | } |
3861 | ||
83f5e2cf JB |
3862 | static int validate_scan_freqs(struct nlattr *freqs) |
3863 | { | |
3864 | struct nlattr *attr1, *attr2; | |
3865 | int n_channels = 0, tmp1, tmp2; | |
3866 | ||
3867 | nla_for_each_nested(attr1, freqs, tmp1) { | |
3868 | n_channels++; | |
3869 | /* | |
3870 | * Some hardware has a limited channel list for | |
3871 | * scanning, and it is pretty much nonsensical | |
3872 | * to scan for a channel twice, so disallow that | |
3873 | * and don't require drivers to check that the | |
3874 | * channel list they get isn't longer than what | |
3875 | * they can scan, as long as they can scan all | |
3876 | * the channels they registered at once. | |
3877 | */ | |
3878 | nla_for_each_nested(attr2, freqs, tmp2) | |
3879 | if (attr1 != attr2 && | |
3880 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
3881 | return 0; | |
3882 | } | |
3883 | ||
3884 | return n_channels; | |
3885 | } | |
3886 | ||
2a519311 JB |
3887 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
3888 | { | |
4c476991 JB |
3889 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3890 | struct net_device *dev = info->user_ptr[1]; | |
2a519311 | 3891 | struct cfg80211_scan_request *request; |
2a519311 JB |
3892 | struct nlattr *attr; |
3893 | struct wiphy *wiphy; | |
83f5e2cf | 3894 | int err, tmp, n_ssids = 0, n_channels, i; |
70692ad2 | 3895 | size_t ie_len; |
2a519311 | 3896 | |
f4a11bb0 JB |
3897 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3898 | return -EINVAL; | |
3899 | ||
79c97e97 | 3900 | wiphy = &rdev->wiphy; |
2a519311 | 3901 | |
4c476991 JB |
3902 | if (!rdev->ops->scan) |
3903 | return -EOPNOTSUPP; | |
2a519311 | 3904 | |
4c476991 JB |
3905 | if (rdev->scan_req) |
3906 | return -EBUSY; | |
2a519311 JB |
3907 | |
3908 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
3909 | n_channels = validate_scan_freqs( |
3910 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4c476991 JB |
3911 | if (!n_channels) |
3912 | return -EINVAL; | |
2a519311 | 3913 | } else { |
34850ab2 | 3914 | enum ieee80211_band band; |
83f5e2cf JB |
3915 | n_channels = 0; |
3916 | ||
2a519311 JB |
3917 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
3918 | if (wiphy->bands[band]) | |
3919 | n_channels += wiphy->bands[band]->n_channels; | |
3920 | } | |
3921 | ||
3922 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
3923 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
3924 | n_ssids++; | |
3925 | ||
4c476991 JB |
3926 | if (n_ssids > wiphy->max_scan_ssids) |
3927 | return -EINVAL; | |
2a519311 | 3928 | |
70692ad2 JM |
3929 | if (info->attrs[NL80211_ATTR_IE]) |
3930 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3931 | else | |
3932 | ie_len = 0; | |
3933 | ||
4c476991 JB |
3934 | if (ie_len > wiphy->max_scan_ie_len) |
3935 | return -EINVAL; | |
18a83659 | 3936 | |
2a519311 | 3937 | request = kzalloc(sizeof(*request) |
a2cd43c5 LC |
3938 | + sizeof(*request->ssids) * n_ssids |
3939 | + sizeof(*request->channels) * n_channels | |
70692ad2 | 3940 | + ie_len, GFP_KERNEL); |
4c476991 JB |
3941 | if (!request) |
3942 | return -ENOMEM; | |
2a519311 | 3943 | |
2a519311 | 3944 | if (n_ssids) |
5ba63533 | 3945 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 3946 | request->n_ssids = n_ssids; |
70692ad2 JM |
3947 | if (ie_len) { |
3948 | if (request->ssids) | |
3949 | request->ie = (void *)(request->ssids + n_ssids); | |
3950 | else | |
3951 | request->ie = (void *)(request->channels + n_channels); | |
3952 | } | |
2a519311 | 3953 | |
584991dc | 3954 | i = 0; |
2a519311 JB |
3955 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
3956 | /* user specified, bail out if channel not found */ | |
2a519311 | 3957 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
3958 | struct ieee80211_channel *chan; |
3959 | ||
3960 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
3961 | ||
3962 | if (!chan) { | |
2a519311 JB |
3963 | err = -EINVAL; |
3964 | goto out_free; | |
3965 | } | |
584991dc JB |
3966 | |
3967 | /* ignore disabled channels */ | |
3968 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3969 | continue; | |
3970 | ||
3971 | request->channels[i] = chan; | |
2a519311 JB |
3972 | i++; |
3973 | } | |
3974 | } else { | |
34850ab2 JB |
3975 | enum ieee80211_band band; |
3976 | ||
2a519311 | 3977 | /* all channels */ |
2a519311 JB |
3978 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
3979 | int j; | |
3980 | if (!wiphy->bands[band]) | |
3981 | continue; | |
3982 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
3983 | struct ieee80211_channel *chan; |
3984 | ||
3985 | chan = &wiphy->bands[band]->channels[j]; | |
3986 | ||
3987 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3988 | continue; | |
3989 | ||
3990 | request->channels[i] = chan; | |
2a519311 JB |
3991 | i++; |
3992 | } | |
3993 | } | |
3994 | } | |
3995 | ||
584991dc JB |
3996 | if (!i) { |
3997 | err = -EINVAL; | |
3998 | goto out_free; | |
3999 | } | |
4000 | ||
4001 | request->n_channels = i; | |
4002 | ||
2a519311 JB |
4003 | i = 0; |
4004 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
4005 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
57a27e1d | 4006 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
2a519311 JB |
4007 | err = -EINVAL; |
4008 | goto out_free; | |
4009 | } | |
57a27e1d | 4010 | request->ssids[i].ssid_len = nla_len(attr); |
2a519311 | 4011 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); |
2a519311 JB |
4012 | i++; |
4013 | } | |
4014 | } | |
4015 | ||
70692ad2 JM |
4016 | if (info->attrs[NL80211_ATTR_IE]) { |
4017 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
4018 | memcpy((void *)request->ie, |
4019 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
4020 | request->ie_len); |
4021 | } | |
4022 | ||
34850ab2 | 4023 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) |
a401d2bb JB |
4024 | if (wiphy->bands[i]) |
4025 | request->rates[i] = | |
4026 | (1 << wiphy->bands[i]->n_bitrates) - 1; | |
34850ab2 JB |
4027 | |
4028 | if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) { | |
4029 | nla_for_each_nested(attr, | |
4030 | info->attrs[NL80211_ATTR_SCAN_SUPP_RATES], | |
4031 | tmp) { | |
4032 | enum ieee80211_band band = nla_type(attr); | |
4033 | ||
84404623 | 4034 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { |
34850ab2 JB |
4035 | err = -EINVAL; |
4036 | goto out_free; | |
4037 | } | |
4038 | err = ieee80211_get_ratemask(wiphy->bands[band], | |
4039 | nla_data(attr), | |
4040 | nla_len(attr), | |
4041 | &request->rates[band]); | |
4042 | if (err) | |
4043 | goto out_free; | |
4044 | } | |
4045 | } | |
4046 | ||
e9f935e3 RM |
4047 | request->no_cck = |
4048 | nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); | |
4049 | ||
463d0183 | 4050 | request->dev = dev; |
79c97e97 | 4051 | request->wiphy = &rdev->wiphy; |
2a519311 | 4052 | |
79c97e97 JB |
4053 | rdev->scan_req = request; |
4054 | err = rdev->ops->scan(&rdev->wiphy, dev, request); | |
2a519311 | 4055 | |
463d0183 | 4056 | if (!err) { |
79c97e97 | 4057 | nl80211_send_scan_start(rdev, dev); |
463d0183 | 4058 | dev_hold(dev); |
4c476991 | 4059 | } else { |
2a519311 | 4060 | out_free: |
79c97e97 | 4061 | rdev->scan_req = NULL; |
2a519311 JB |
4062 | kfree(request); |
4063 | } | |
3b85875a | 4064 | |
2a519311 JB |
4065 | return err; |
4066 | } | |
4067 | ||
807f8a8c LC |
4068 | static int nl80211_start_sched_scan(struct sk_buff *skb, |
4069 | struct genl_info *info) | |
4070 | { | |
4071 | struct cfg80211_sched_scan_request *request; | |
4072 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4073 | struct net_device *dev = info->user_ptr[1]; | |
807f8a8c LC |
4074 | struct nlattr *attr; |
4075 | struct wiphy *wiphy; | |
a1f1c21c | 4076 | int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i; |
bbe6ad6d | 4077 | u32 interval; |
807f8a8c LC |
4078 | enum ieee80211_band band; |
4079 | size_t ie_len; | |
a1f1c21c | 4080 | struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1]; |
807f8a8c LC |
4081 | |
4082 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
4083 | !rdev->ops->sched_scan_start) | |
4084 | return -EOPNOTSUPP; | |
4085 | ||
4086 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
4087 | return -EINVAL; | |
4088 | ||
bbe6ad6d LC |
4089 | if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) |
4090 | return -EINVAL; | |
4091 | ||
4092 | interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); | |
4093 | if (interval == 0) | |
4094 | return -EINVAL; | |
4095 | ||
807f8a8c LC |
4096 | wiphy = &rdev->wiphy; |
4097 | ||
4098 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
4099 | n_channels = validate_scan_freqs( | |
4100 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4101 | if (!n_channels) | |
4102 | return -EINVAL; | |
4103 | } else { | |
4104 | n_channels = 0; | |
4105 | ||
4106 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) | |
4107 | if (wiphy->bands[band]) | |
4108 | n_channels += wiphy->bands[band]->n_channels; | |
4109 | } | |
4110 | ||
4111 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
4112 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], | |
4113 | tmp) | |
4114 | n_ssids++; | |
4115 | ||
93b6aa69 | 4116 | if (n_ssids > wiphy->max_sched_scan_ssids) |
807f8a8c LC |
4117 | return -EINVAL; |
4118 | ||
a1f1c21c LC |
4119 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) |
4120 | nla_for_each_nested(attr, | |
4121 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
4122 | tmp) | |
4123 | n_match_sets++; | |
4124 | ||
4125 | if (n_match_sets > wiphy->max_match_sets) | |
4126 | return -EINVAL; | |
4127 | ||
807f8a8c LC |
4128 | if (info->attrs[NL80211_ATTR_IE]) |
4129 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4130 | else | |
4131 | ie_len = 0; | |
4132 | ||
5a865bad | 4133 | if (ie_len > wiphy->max_sched_scan_ie_len) |
807f8a8c LC |
4134 | return -EINVAL; |
4135 | ||
c10841ca LC |
4136 | mutex_lock(&rdev->sched_scan_mtx); |
4137 | ||
4138 | if (rdev->sched_scan_req) { | |
4139 | err = -EINPROGRESS; | |
4140 | goto out; | |
4141 | } | |
4142 | ||
807f8a8c | 4143 | request = kzalloc(sizeof(*request) |
a2cd43c5 | 4144 | + sizeof(*request->ssids) * n_ssids |
a1f1c21c | 4145 | + sizeof(*request->match_sets) * n_match_sets |
a2cd43c5 | 4146 | + sizeof(*request->channels) * n_channels |
807f8a8c | 4147 | + ie_len, GFP_KERNEL); |
c10841ca LC |
4148 | if (!request) { |
4149 | err = -ENOMEM; | |
4150 | goto out; | |
4151 | } | |
807f8a8c LC |
4152 | |
4153 | if (n_ssids) | |
4154 | request->ssids = (void *)&request->channels[n_channels]; | |
4155 | request->n_ssids = n_ssids; | |
4156 | if (ie_len) { | |
4157 | if (request->ssids) | |
4158 | request->ie = (void *)(request->ssids + n_ssids); | |
4159 | else | |
4160 | request->ie = (void *)(request->channels + n_channels); | |
4161 | } | |
4162 | ||
a1f1c21c LC |
4163 | if (n_match_sets) { |
4164 | if (request->ie) | |
4165 | request->match_sets = (void *)(request->ie + ie_len); | |
4166 | else if (request->ssids) | |
4167 | request->match_sets = | |
4168 | (void *)(request->ssids + n_ssids); | |
4169 | else | |
4170 | request->match_sets = | |
4171 | (void *)(request->channels + n_channels); | |
4172 | } | |
4173 | request->n_match_sets = n_match_sets; | |
4174 | ||
807f8a8c LC |
4175 | i = 0; |
4176 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
4177 | /* user specified, bail out if channel not found */ | |
4178 | nla_for_each_nested(attr, | |
4179 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], | |
4180 | tmp) { | |
4181 | struct ieee80211_channel *chan; | |
4182 | ||
4183 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
4184 | ||
4185 | if (!chan) { | |
4186 | err = -EINVAL; | |
4187 | goto out_free; | |
4188 | } | |
4189 | ||
4190 | /* ignore disabled channels */ | |
4191 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4192 | continue; | |
4193 | ||
4194 | request->channels[i] = chan; | |
4195 | i++; | |
4196 | } | |
4197 | } else { | |
4198 | /* all channels */ | |
4199 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
4200 | int j; | |
4201 | if (!wiphy->bands[band]) | |
4202 | continue; | |
4203 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
4204 | struct ieee80211_channel *chan; | |
4205 | ||
4206 | chan = &wiphy->bands[band]->channels[j]; | |
4207 | ||
4208 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4209 | continue; | |
4210 | ||
4211 | request->channels[i] = chan; | |
4212 | i++; | |
4213 | } | |
4214 | } | |
4215 | } | |
4216 | ||
4217 | if (!i) { | |
4218 | err = -EINVAL; | |
4219 | goto out_free; | |
4220 | } | |
4221 | ||
4222 | request->n_channels = i; | |
4223 | ||
4224 | i = 0; | |
4225 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
4226 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], | |
4227 | tmp) { | |
57a27e1d | 4228 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
807f8a8c LC |
4229 | err = -EINVAL; |
4230 | goto out_free; | |
4231 | } | |
57a27e1d | 4232 | request->ssids[i].ssid_len = nla_len(attr); |
807f8a8c LC |
4233 | memcpy(request->ssids[i].ssid, nla_data(attr), |
4234 | nla_len(attr)); | |
807f8a8c LC |
4235 | i++; |
4236 | } | |
4237 | } | |
4238 | ||
a1f1c21c LC |
4239 | i = 0; |
4240 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { | |
4241 | nla_for_each_nested(attr, | |
4242 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
4243 | tmp) { | |
4244 | struct nlattr *ssid; | |
4245 | ||
4246 | nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, | |
4247 | nla_data(attr), nla_len(attr), | |
4248 | nl80211_match_policy); | |
4249 | ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID]; | |
4250 | if (ssid) { | |
4251 | if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { | |
4252 | err = -EINVAL; | |
4253 | goto out_free; | |
4254 | } | |
4255 | memcpy(request->match_sets[i].ssid.ssid, | |
4256 | nla_data(ssid), nla_len(ssid)); | |
4257 | request->match_sets[i].ssid.ssid_len = | |
4258 | nla_len(ssid); | |
4259 | } | |
4260 | i++; | |
4261 | } | |
4262 | } | |
4263 | ||
807f8a8c LC |
4264 | if (info->attrs[NL80211_ATTR_IE]) { |
4265 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4266 | memcpy((void *)request->ie, | |
4267 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
4268 | request->ie_len); | |
4269 | } | |
4270 | ||
4271 | request->dev = dev; | |
4272 | request->wiphy = &rdev->wiphy; | |
bbe6ad6d | 4273 | request->interval = interval; |
807f8a8c LC |
4274 | |
4275 | err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request); | |
4276 | if (!err) { | |
4277 | rdev->sched_scan_req = request; | |
4278 | nl80211_send_sched_scan(rdev, dev, | |
4279 | NL80211_CMD_START_SCHED_SCAN); | |
4280 | goto out; | |
4281 | } | |
4282 | ||
4283 | out_free: | |
4284 | kfree(request); | |
4285 | out: | |
c10841ca | 4286 | mutex_unlock(&rdev->sched_scan_mtx); |
807f8a8c LC |
4287 | return err; |
4288 | } | |
4289 | ||
4290 | static int nl80211_stop_sched_scan(struct sk_buff *skb, | |
4291 | struct genl_info *info) | |
4292 | { | |
4293 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
c10841ca | 4294 | int err; |
807f8a8c LC |
4295 | |
4296 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
4297 | !rdev->ops->sched_scan_stop) | |
4298 | return -EOPNOTSUPP; | |
4299 | ||
c10841ca LC |
4300 | mutex_lock(&rdev->sched_scan_mtx); |
4301 | err = __cfg80211_stop_sched_scan(rdev, false); | |
4302 | mutex_unlock(&rdev->sched_scan_mtx); | |
4303 | ||
4304 | return err; | |
807f8a8c LC |
4305 | } |
4306 | ||
9720bb3a JB |
4307 | static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, |
4308 | u32 seq, int flags, | |
2a519311 | 4309 | struct cfg80211_registered_device *rdev, |
48ab905d JB |
4310 | struct wireless_dev *wdev, |
4311 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 4312 | { |
48ab905d | 4313 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
4314 | void *hdr; |
4315 | struct nlattr *bss; | |
48ab905d JB |
4316 | |
4317 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 | 4318 | |
9720bb3a | 4319 | hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags, |
2a519311 JB |
4320 | NL80211_CMD_NEW_SCAN_RESULTS); |
4321 | if (!hdr) | |
4322 | return -1; | |
4323 | ||
9720bb3a JB |
4324 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); |
4325 | ||
9360ffd1 DM |
4326 | if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) || |
4327 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex)) | |
4328 | goto nla_put_failure; | |
2a519311 JB |
4329 | |
4330 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
4331 | if (!bss) | |
4332 | goto nla_put_failure; | |
9360ffd1 DM |
4333 | if ((!is_zero_ether_addr(res->bssid) && |
4334 | nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) || | |
4335 | (res->information_elements && res->len_information_elements && | |
4336 | nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
4337 | res->len_information_elements, | |
4338 | res->information_elements)) || | |
4339 | (res->beacon_ies && res->len_beacon_ies && | |
4340 | res->beacon_ies != res->information_elements && | |
4341 | nla_put(msg, NL80211_BSS_BEACON_IES, | |
4342 | res->len_beacon_ies, res->beacon_ies))) | |
4343 | goto nla_put_failure; | |
4344 | if (res->tsf && | |
4345 | nla_put_u64(msg, NL80211_BSS_TSF, res->tsf)) | |
4346 | goto nla_put_failure; | |
4347 | if (res->beacon_interval && | |
4348 | nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval)) | |
4349 | goto nla_put_failure; | |
4350 | if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) || | |
4351 | nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) || | |
4352 | nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO, | |
4353 | jiffies_to_msecs(jiffies - intbss->ts))) | |
4354 | goto nla_put_failure; | |
2a519311 | 4355 | |
77965c97 | 4356 | switch (rdev->wiphy.signal_type) { |
2a519311 | 4357 | case CFG80211_SIGNAL_TYPE_MBM: |
9360ffd1 DM |
4358 | if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal)) |
4359 | goto nla_put_failure; | |
2a519311 JB |
4360 | break; |
4361 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
9360ffd1 DM |
4362 | if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal)) |
4363 | goto nla_put_failure; | |
2a519311 JB |
4364 | break; |
4365 | default: | |
4366 | break; | |
4367 | } | |
4368 | ||
48ab905d | 4369 | switch (wdev->iftype) { |
074ac8df | 4370 | case NL80211_IFTYPE_P2P_CLIENT: |
48ab905d | 4371 | case NL80211_IFTYPE_STATION: |
9360ffd1 DM |
4372 | if (intbss == wdev->current_bss && |
4373 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
4374 | NL80211_BSS_STATUS_ASSOCIATED)) | |
4375 | goto nla_put_failure; | |
48ab905d JB |
4376 | break; |
4377 | case NL80211_IFTYPE_ADHOC: | |
9360ffd1 DM |
4378 | if (intbss == wdev->current_bss && |
4379 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
4380 | NL80211_BSS_STATUS_IBSS_JOINED)) | |
4381 | goto nla_put_failure; | |
48ab905d JB |
4382 | break; |
4383 | default: | |
4384 | break; | |
4385 | } | |
4386 | ||
2a519311 JB |
4387 | nla_nest_end(msg, bss); |
4388 | ||
4389 | return genlmsg_end(msg, hdr); | |
4390 | ||
4391 | nla_put_failure: | |
4392 | genlmsg_cancel(msg, hdr); | |
4393 | return -EMSGSIZE; | |
4394 | } | |
4395 | ||
4396 | static int nl80211_dump_scan(struct sk_buff *skb, | |
4397 | struct netlink_callback *cb) | |
4398 | { | |
48ab905d JB |
4399 | struct cfg80211_registered_device *rdev; |
4400 | struct net_device *dev; | |
2a519311 | 4401 | struct cfg80211_internal_bss *scan; |
48ab905d | 4402 | struct wireless_dev *wdev; |
2a519311 JB |
4403 | int start = cb->args[1], idx = 0; |
4404 | int err; | |
4405 | ||
67748893 JB |
4406 | err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev); |
4407 | if (err) | |
4408 | return err; | |
2a519311 | 4409 | |
48ab905d | 4410 | wdev = dev->ieee80211_ptr; |
2a519311 | 4411 | |
48ab905d JB |
4412 | wdev_lock(wdev); |
4413 | spin_lock_bh(&rdev->bss_lock); | |
4414 | cfg80211_bss_expire(rdev); | |
4415 | ||
9720bb3a JB |
4416 | cb->seq = rdev->bss_generation; |
4417 | ||
48ab905d | 4418 | list_for_each_entry(scan, &rdev->bss_list, list) { |
2a519311 JB |
4419 | if (++idx <= start) |
4420 | continue; | |
9720bb3a | 4421 | if (nl80211_send_bss(skb, cb, |
2a519311 | 4422 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
48ab905d | 4423 | rdev, wdev, scan) < 0) { |
2a519311 | 4424 | idx--; |
67748893 | 4425 | break; |
2a519311 JB |
4426 | } |
4427 | } | |
4428 | ||
48ab905d JB |
4429 | spin_unlock_bh(&rdev->bss_lock); |
4430 | wdev_unlock(wdev); | |
2a519311 JB |
4431 | |
4432 | cb->args[1] = idx; | |
67748893 | 4433 | nl80211_finish_netdev_dump(rdev); |
2a519311 | 4434 | |
67748893 | 4435 | return skb->len; |
2a519311 JB |
4436 | } |
4437 | ||
61fa713c HS |
4438 | static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, |
4439 | int flags, struct net_device *dev, | |
4440 | struct survey_info *survey) | |
4441 | { | |
4442 | void *hdr; | |
4443 | struct nlattr *infoattr; | |
4444 | ||
61fa713c HS |
4445 | hdr = nl80211hdr_put(msg, pid, seq, flags, |
4446 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
4447 | if (!hdr) | |
4448 | return -ENOMEM; | |
4449 | ||
9360ffd1 DM |
4450 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
4451 | goto nla_put_failure; | |
61fa713c HS |
4452 | |
4453 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
4454 | if (!infoattr) | |
4455 | goto nla_put_failure; | |
4456 | ||
9360ffd1 DM |
4457 | if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY, |
4458 | survey->channel->center_freq)) | |
4459 | goto nla_put_failure; | |
4460 | ||
4461 | if ((survey->filled & SURVEY_INFO_NOISE_DBM) && | |
4462 | nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise)) | |
4463 | goto nla_put_failure; | |
4464 | if ((survey->filled & SURVEY_INFO_IN_USE) && | |
4465 | nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE)) | |
4466 | goto nla_put_failure; | |
4467 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) && | |
4468 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME, | |
4469 | survey->channel_time)) | |
4470 | goto nla_put_failure; | |
4471 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) && | |
4472 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY, | |
4473 | survey->channel_time_busy)) | |
4474 | goto nla_put_failure; | |
4475 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) && | |
4476 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY, | |
4477 | survey->channel_time_ext_busy)) | |
4478 | goto nla_put_failure; | |
4479 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) && | |
4480 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX, | |
4481 | survey->channel_time_rx)) | |
4482 | goto nla_put_failure; | |
4483 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) && | |
4484 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX, | |
4485 | survey->channel_time_tx)) | |
4486 | goto nla_put_failure; | |
61fa713c HS |
4487 | |
4488 | nla_nest_end(msg, infoattr); | |
4489 | ||
4490 | return genlmsg_end(msg, hdr); | |
4491 | ||
4492 | nla_put_failure: | |
4493 | genlmsg_cancel(msg, hdr); | |
4494 | return -EMSGSIZE; | |
4495 | } | |
4496 | ||
4497 | static int nl80211_dump_survey(struct sk_buff *skb, | |
4498 | struct netlink_callback *cb) | |
4499 | { | |
4500 | struct survey_info survey; | |
4501 | struct cfg80211_registered_device *dev; | |
4502 | struct net_device *netdev; | |
61fa713c HS |
4503 | int survey_idx = cb->args[1]; |
4504 | int res; | |
4505 | ||
67748893 JB |
4506 | res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
4507 | if (res) | |
4508 | return res; | |
61fa713c HS |
4509 | |
4510 | if (!dev->ops->dump_survey) { | |
4511 | res = -EOPNOTSUPP; | |
4512 | goto out_err; | |
4513 | } | |
4514 | ||
4515 | while (1) { | |
180cdc79 LR |
4516 | struct ieee80211_channel *chan; |
4517 | ||
61fa713c HS |
4518 | res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, |
4519 | &survey); | |
4520 | if (res == -ENOENT) | |
4521 | break; | |
4522 | if (res) | |
4523 | goto out_err; | |
4524 | ||
180cdc79 LR |
4525 | /* Survey without a channel doesn't make sense */ |
4526 | if (!survey.channel) { | |
4527 | res = -EINVAL; | |
4528 | goto out; | |
4529 | } | |
4530 | ||
4531 | chan = ieee80211_get_channel(&dev->wiphy, | |
4532 | survey.channel->center_freq); | |
4533 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) { | |
4534 | survey_idx++; | |
4535 | continue; | |
4536 | } | |
4537 | ||
61fa713c HS |
4538 | if (nl80211_send_survey(skb, |
4539 | NETLINK_CB(cb->skb).pid, | |
4540 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4541 | netdev, | |
4542 | &survey) < 0) | |
4543 | goto out; | |
4544 | survey_idx++; | |
4545 | } | |
4546 | ||
4547 | out: | |
4548 | cb->args[1] = survey_idx; | |
4549 | res = skb->len; | |
4550 | out_err: | |
67748893 | 4551 | nl80211_finish_netdev_dump(dev); |
61fa713c HS |
4552 | return res; |
4553 | } | |
4554 | ||
255e737e JM |
4555 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
4556 | { | |
b23aa676 SO |
4557 | return auth_type <= NL80211_AUTHTYPE_MAX; |
4558 | } | |
4559 | ||
4560 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
4561 | { | |
4562 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
4563 | NL80211_WPA_VERSION_2)); | |
4564 | } | |
4565 | ||
636a5d36 JM |
4566 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
4567 | { | |
4c476991 JB |
4568 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4569 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 JB |
4570 | struct ieee80211_channel *chan; |
4571 | const u8 *bssid, *ssid, *ie = NULL; | |
4572 | int err, ssid_len, ie_len = 0; | |
4573 | enum nl80211_auth_type auth_type; | |
fffd0934 | 4574 | struct key_parse key; |
d5cdfacb | 4575 | bool local_state_change; |
636a5d36 | 4576 | |
f4a11bb0 JB |
4577 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4578 | return -EINVAL; | |
4579 | ||
4580 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4581 | return -EINVAL; | |
4582 | ||
1778092e JM |
4583 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
4584 | return -EINVAL; | |
4585 | ||
19957bb3 JB |
4586 | if (!info->attrs[NL80211_ATTR_SSID]) |
4587 | return -EINVAL; | |
4588 | ||
4589 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4590 | return -EINVAL; | |
4591 | ||
fffd0934 JB |
4592 | err = nl80211_parse_key(info, &key); |
4593 | if (err) | |
4594 | return err; | |
4595 | ||
4596 | if (key.idx >= 0) { | |
e31b8213 JB |
4597 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
4598 | return -EINVAL; | |
fffd0934 JB |
4599 | if (!key.p.key || !key.p.key_len) |
4600 | return -EINVAL; | |
4601 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
4602 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
4603 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
4604 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
4605 | return -EINVAL; | |
4606 | if (key.idx > 4) | |
4607 | return -EINVAL; | |
4608 | } else { | |
4609 | key.p.key_len = 0; | |
4610 | key.p.key = NULL; | |
4611 | } | |
4612 | ||
afea0b7a JB |
4613 | if (key.idx >= 0) { |
4614 | int i; | |
4615 | bool ok = false; | |
4616 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
4617 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
4618 | ok = true; | |
4619 | break; | |
4620 | } | |
4621 | } | |
4c476991 JB |
4622 | if (!ok) |
4623 | return -EINVAL; | |
afea0b7a JB |
4624 | } |
4625 | ||
4c476991 JB |
4626 | if (!rdev->ops->auth) |
4627 | return -EOPNOTSUPP; | |
636a5d36 | 4628 | |
074ac8df | 4629 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4630 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4631 | return -EOPNOTSUPP; | |
eec60b03 | 4632 | |
19957bb3 | 4633 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 4634 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 | 4635 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
4c476991 JB |
4636 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
4637 | return -EINVAL; | |
636a5d36 | 4638 | |
19957bb3 JB |
4639 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
4640 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
4641 | |
4642 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
4643 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
4644 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
4645 | } |
4646 | ||
19957bb3 | 4647 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
4c476991 JB |
4648 | if (!nl80211_valid_auth_type(auth_type)) |
4649 | return -EINVAL; | |
636a5d36 | 4650 | |
d5cdfacb JM |
4651 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
4652 | ||
95de817b JB |
4653 | /* |
4654 | * Since we no longer track auth state, ignore | |
4655 | * requests to only change local state. | |
4656 | */ | |
4657 | if (local_state_change) | |
4658 | return 0; | |
4659 | ||
4c476991 JB |
4660 | return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
4661 | ssid, ssid_len, ie, ie_len, | |
95de817b | 4662 | key.p.key, key.p.key_len, key.idx); |
636a5d36 JM |
4663 | } |
4664 | ||
c0692b8f JB |
4665 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
4666 | struct genl_info *info, | |
3dc27d25 JB |
4667 | struct cfg80211_crypto_settings *settings, |
4668 | int cipher_limit) | |
b23aa676 | 4669 | { |
c0b2bbd8 JB |
4670 | memset(settings, 0, sizeof(*settings)); |
4671 | ||
b23aa676 SO |
4672 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
4673 | ||
c0692b8f JB |
4674 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
4675 | u16 proto; | |
4676 | proto = nla_get_u16( | |
4677 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
4678 | settings->control_port_ethertype = cpu_to_be16(proto); | |
4679 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
4680 | proto != ETH_P_PAE) | |
4681 | return -EINVAL; | |
4682 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
4683 | settings->control_port_no_encrypt = true; | |
4684 | } else | |
4685 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
4686 | ||
b23aa676 SO |
4687 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
4688 | void *data; | |
4689 | int len, i; | |
4690 | ||
4691 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
4692 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
4693 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
4694 | ||
4695 | if (len % sizeof(u32)) | |
4696 | return -EINVAL; | |
4697 | ||
3dc27d25 | 4698 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
4699 | return -EINVAL; |
4700 | ||
4701 | memcpy(settings->ciphers_pairwise, data, len); | |
4702 | ||
4703 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
38ba3c57 JM |
4704 | if (!cfg80211_supported_cipher_suite( |
4705 | &rdev->wiphy, | |
b23aa676 SO |
4706 | settings->ciphers_pairwise[i])) |
4707 | return -EINVAL; | |
4708 | } | |
4709 | ||
4710 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
4711 | settings->cipher_group = | |
4712 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
38ba3c57 JM |
4713 | if (!cfg80211_supported_cipher_suite(&rdev->wiphy, |
4714 | settings->cipher_group)) | |
b23aa676 SO |
4715 | return -EINVAL; |
4716 | } | |
4717 | ||
4718 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
4719 | settings->wpa_versions = | |
4720 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
4721 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
4722 | return -EINVAL; | |
4723 | } | |
4724 | ||
4725 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
4726 | void *data; | |
6d30240e | 4727 | int len; |
b23aa676 SO |
4728 | |
4729 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
4730 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
4731 | settings->n_akm_suites = len / sizeof(u32); | |
4732 | ||
4733 | if (len % sizeof(u32)) | |
4734 | return -EINVAL; | |
4735 | ||
1b9ca027 JM |
4736 | if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES) |
4737 | return -EINVAL; | |
4738 | ||
b23aa676 | 4739 | memcpy(settings->akm_suites, data, len); |
b23aa676 SO |
4740 | } |
4741 | ||
4742 | return 0; | |
4743 | } | |
4744 | ||
636a5d36 JM |
4745 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
4746 | { | |
4c476991 JB |
4747 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4748 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 4749 | struct cfg80211_crypto_settings crypto; |
f444de05 | 4750 | struct ieee80211_channel *chan; |
3e5d7649 | 4751 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
4752 | int err, ssid_len, ie_len = 0; |
4753 | bool use_mfp = false; | |
7e7c8926 BG |
4754 | u32 flags = 0; |
4755 | struct ieee80211_ht_cap *ht_capa = NULL; | |
4756 | struct ieee80211_ht_cap *ht_capa_mask = NULL; | |
636a5d36 | 4757 | |
f4a11bb0 JB |
4758 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4759 | return -EINVAL; | |
4760 | ||
4761 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
4762 | !info->attrs[NL80211_ATTR_SSID] || |
4763 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
4764 | return -EINVAL; |
4765 | ||
4c476991 JB |
4766 | if (!rdev->ops->assoc) |
4767 | return -EOPNOTSUPP; | |
636a5d36 | 4768 | |
074ac8df | 4769 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4770 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4771 | return -EOPNOTSUPP; | |
eec60b03 | 4772 | |
19957bb3 | 4773 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 4774 | |
19957bb3 JB |
4775 | chan = ieee80211_get_channel(&rdev->wiphy, |
4776 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4c476991 JB |
4777 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
4778 | return -EINVAL; | |
636a5d36 | 4779 | |
19957bb3 JB |
4780 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
4781 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
4782 | |
4783 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
4784 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
4785 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
4786 | } |
4787 | ||
dc6382ce | 4788 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 4789 | enum nl80211_mfp mfp = |
dc6382ce | 4790 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 4791 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 4792 | use_mfp = true; |
4c476991 JB |
4793 | else if (mfp != NL80211_MFP_NO) |
4794 | return -EINVAL; | |
dc6382ce JM |
4795 | } |
4796 | ||
3e5d7649 JB |
4797 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
4798 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
4799 | ||
7e7c8926 BG |
4800 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
4801 | flags |= ASSOC_REQ_DISABLE_HT; | |
4802 | ||
4803 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
4804 | ht_capa_mask = | |
4805 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]); | |
4806 | ||
4807 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
4808 | if (!ht_capa_mask) | |
4809 | return -EINVAL; | |
4810 | ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
4811 | } | |
4812 | ||
c0692b8f | 4813 | err = nl80211_crypto_settings(rdev, info, &crypto, 1); |
b23aa676 | 4814 | if (!err) |
3e5d7649 JB |
4815 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
4816 | ssid, ssid_len, ie, ie_len, use_mfp, | |
7e7c8926 BG |
4817 | &crypto, flags, ht_capa, |
4818 | ht_capa_mask); | |
636a5d36 | 4819 | |
636a5d36 JM |
4820 | return err; |
4821 | } | |
4822 | ||
4823 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
4824 | { | |
4c476991 JB |
4825 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4826 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 4827 | const u8 *ie = NULL, *bssid; |
4c476991 | 4828 | int ie_len = 0; |
19957bb3 | 4829 | u16 reason_code; |
d5cdfacb | 4830 | bool local_state_change; |
636a5d36 | 4831 | |
f4a11bb0 JB |
4832 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4833 | return -EINVAL; | |
4834 | ||
4835 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4836 | return -EINVAL; | |
4837 | ||
4838 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
4839 | return -EINVAL; | |
4840 | ||
4c476991 JB |
4841 | if (!rdev->ops->deauth) |
4842 | return -EOPNOTSUPP; | |
636a5d36 | 4843 | |
074ac8df | 4844 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4845 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4846 | return -EOPNOTSUPP; | |
eec60b03 | 4847 | |
19957bb3 | 4848 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 4849 | |
19957bb3 JB |
4850 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
4851 | if (reason_code == 0) { | |
f4a11bb0 | 4852 | /* Reason Code 0 is reserved */ |
4c476991 | 4853 | return -EINVAL; |
255e737e | 4854 | } |
636a5d36 JM |
4855 | |
4856 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
4857 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
4858 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
4859 | } |
4860 | ||
d5cdfacb JM |
4861 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
4862 | ||
4c476991 JB |
4863 | return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, |
4864 | local_state_change); | |
636a5d36 JM |
4865 | } |
4866 | ||
4867 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
4868 | { | |
4c476991 JB |
4869 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4870 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 4871 | const u8 *ie = NULL, *bssid; |
4c476991 | 4872 | int ie_len = 0; |
19957bb3 | 4873 | u16 reason_code; |
d5cdfacb | 4874 | bool local_state_change; |
636a5d36 | 4875 | |
f4a11bb0 JB |
4876 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4877 | return -EINVAL; | |
4878 | ||
4879 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4880 | return -EINVAL; | |
4881 | ||
4882 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
4883 | return -EINVAL; | |
4884 | ||
4c476991 JB |
4885 | if (!rdev->ops->disassoc) |
4886 | return -EOPNOTSUPP; | |
636a5d36 | 4887 | |
074ac8df | 4888 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4889 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4890 | return -EOPNOTSUPP; | |
eec60b03 | 4891 | |
19957bb3 | 4892 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 4893 | |
19957bb3 JB |
4894 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
4895 | if (reason_code == 0) { | |
f4a11bb0 | 4896 | /* Reason Code 0 is reserved */ |
4c476991 | 4897 | return -EINVAL; |
255e737e | 4898 | } |
636a5d36 JM |
4899 | |
4900 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
4901 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
4902 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
4903 | } |
4904 | ||
d5cdfacb JM |
4905 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
4906 | ||
4c476991 JB |
4907 | return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, |
4908 | local_state_change); | |
636a5d36 JM |
4909 | } |
4910 | ||
dd5b4cc7 FF |
4911 | static bool |
4912 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, | |
4913 | int mcast_rate[IEEE80211_NUM_BANDS], | |
4914 | int rateval) | |
4915 | { | |
4916 | struct wiphy *wiphy = &rdev->wiphy; | |
4917 | bool found = false; | |
4918 | int band, i; | |
4919 | ||
4920 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
4921 | struct ieee80211_supported_band *sband; | |
4922 | ||
4923 | sband = wiphy->bands[band]; | |
4924 | if (!sband) | |
4925 | continue; | |
4926 | ||
4927 | for (i = 0; i < sband->n_bitrates; i++) { | |
4928 | if (sband->bitrates[i].bitrate == rateval) { | |
4929 | mcast_rate[band] = i + 1; | |
4930 | found = true; | |
4931 | break; | |
4932 | } | |
4933 | } | |
4934 | } | |
4935 | ||
4936 | return found; | |
4937 | } | |
4938 | ||
04a773ad JB |
4939 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
4940 | { | |
4c476991 JB |
4941 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4942 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad JB |
4943 | struct cfg80211_ibss_params ibss; |
4944 | struct wiphy *wiphy; | |
fffd0934 | 4945 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
4946 | int err; |
4947 | ||
8e30bc55 JB |
4948 | memset(&ibss, 0, sizeof(ibss)); |
4949 | ||
04a773ad JB |
4950 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4951 | return -EINVAL; | |
4952 | ||
4953 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
4954 | !info->attrs[NL80211_ATTR_SSID] || | |
4955 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
4956 | return -EINVAL; | |
4957 | ||
8e30bc55 JB |
4958 | ibss.beacon_interval = 100; |
4959 | ||
4960 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
4961 | ibss.beacon_interval = | |
4962 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
4963 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
4964 | return -EINVAL; | |
4965 | } | |
4966 | ||
4c476991 JB |
4967 | if (!rdev->ops->join_ibss) |
4968 | return -EOPNOTSUPP; | |
04a773ad | 4969 | |
4c476991 JB |
4970 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
4971 | return -EOPNOTSUPP; | |
04a773ad | 4972 | |
79c97e97 | 4973 | wiphy = &rdev->wiphy; |
04a773ad | 4974 | |
39193498 | 4975 | if (info->attrs[NL80211_ATTR_MAC]) { |
04a773ad | 4976 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
39193498 JB |
4977 | |
4978 | if (!is_valid_ether_addr(ibss.bssid)) | |
4979 | return -EINVAL; | |
4980 | } | |
04a773ad JB |
4981 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
4982 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
4983 | ||
4984 | if (info->attrs[NL80211_ATTR_IE]) { | |
4985 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
4986 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4987 | } | |
4988 | ||
54858ee5 AS |
4989 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
4990 | enum nl80211_channel_type channel_type; | |
4991 | ||
cd6c6598 | 4992 | if (!nl80211_valid_channel_type(info, &channel_type)) |
54858ee5 AS |
4993 | return -EINVAL; |
4994 | ||
4995 | if (channel_type != NL80211_CHAN_NO_HT && | |
4996 | !(wiphy->features & NL80211_FEATURE_HT_IBSS)) | |
4997 | return -EINVAL; | |
4998 | ||
4999 | ibss.channel_type = channel_type; | |
5000 | } else { | |
5001 | ibss.channel_type = NL80211_CHAN_NO_HT; | |
5002 | } | |
5003 | ||
5004 | ibss.channel = rdev_freq_to_chan(rdev, | |
5005 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
5006 | ibss.channel_type); | |
04a773ad JB |
5007 | if (!ibss.channel || |
5008 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
4c476991 JB |
5009 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) |
5010 | return -EINVAL; | |
04a773ad | 5011 | |
54858ee5 AS |
5012 | /* Both channels should be able to initiate communication */ |
5013 | if ((ibss.channel_type == NL80211_CHAN_HT40PLUS || | |
5014 | ibss.channel_type == NL80211_CHAN_HT40MINUS) && | |
5015 | !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel, | |
5016 | ibss.channel_type)) | |
5017 | return -EINVAL; | |
5018 | ||
04a773ad | 5019 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; |
fffd0934 JB |
5020 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
5021 | ||
fbd2c8dc TP |
5022 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
5023 | u8 *rates = | |
5024 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
5025 | int n_rates = | |
5026 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
5027 | struct ieee80211_supported_band *sband = | |
5028 | wiphy->bands[ibss.channel->band]; | |
fbd2c8dc | 5029 | |
34850ab2 JB |
5030 | err = ieee80211_get_ratemask(sband, rates, n_rates, |
5031 | &ibss.basic_rates); | |
5032 | if (err) | |
5033 | return err; | |
fbd2c8dc | 5034 | } |
dd5b4cc7 FF |
5035 | |
5036 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && | |
5037 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, | |
5038 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
5039 | return -EINVAL; | |
fbd2c8dc | 5040 | |
4c476991 JB |
5041 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
5042 | connkeys = nl80211_parse_connkeys(rdev, | |
5043 | info->attrs[NL80211_ATTR_KEYS]); | |
5044 | if (IS_ERR(connkeys)) | |
5045 | return PTR_ERR(connkeys); | |
5046 | } | |
04a773ad | 5047 | |
267335d6 AQ |
5048 | ibss.control_port = |
5049 | nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]); | |
5050 | ||
4c476991 | 5051 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
fffd0934 JB |
5052 | if (err) |
5053 | kfree(connkeys); | |
04a773ad JB |
5054 | return err; |
5055 | } | |
5056 | ||
5057 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
5058 | { | |
4c476991 JB |
5059 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5060 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad | 5061 | |
4c476991 JB |
5062 | if (!rdev->ops->leave_ibss) |
5063 | return -EOPNOTSUPP; | |
04a773ad | 5064 | |
4c476991 JB |
5065 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
5066 | return -EOPNOTSUPP; | |
04a773ad | 5067 | |
4c476991 | 5068 | return cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
5069 | } |
5070 | ||
aff89a9b JB |
5071 | #ifdef CONFIG_NL80211_TESTMODE |
5072 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
5073 | .name = "testmode", | |
5074 | }; | |
5075 | ||
5076 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
5077 | { | |
4c476991 | 5078 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
aff89a9b JB |
5079 | int err; |
5080 | ||
5081 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
5082 | return -EINVAL; | |
5083 | ||
aff89a9b JB |
5084 | err = -EOPNOTSUPP; |
5085 | if (rdev->ops->testmode_cmd) { | |
5086 | rdev->testmode_info = info; | |
5087 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
5088 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
5089 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
5090 | rdev->testmode_info = NULL; | |
5091 | } | |
5092 | ||
aff89a9b JB |
5093 | return err; |
5094 | } | |
5095 | ||
71063f0e WYG |
5096 | static int nl80211_testmode_dump(struct sk_buff *skb, |
5097 | struct netlink_callback *cb) | |
5098 | { | |
00918d33 | 5099 | struct cfg80211_registered_device *rdev; |
71063f0e WYG |
5100 | int err; |
5101 | long phy_idx; | |
5102 | void *data = NULL; | |
5103 | int data_len = 0; | |
5104 | ||
5105 | if (cb->args[0]) { | |
5106 | /* | |
5107 | * 0 is a valid index, but not valid for args[0], | |
5108 | * so we need to offset by 1. | |
5109 | */ | |
5110 | phy_idx = cb->args[0] - 1; | |
5111 | } else { | |
5112 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
5113 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
5114 | nl80211_policy); | |
5115 | if (err) | |
5116 | return err; | |
00918d33 JB |
5117 | if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) { |
5118 | phy_idx = nla_get_u32( | |
5119 | nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]); | |
5120 | } else { | |
5121 | struct net_device *netdev; | |
5122 | ||
5123 | err = get_rdev_dev_by_ifindex(sock_net(skb->sk), | |
5124 | nl80211_fam.attrbuf, | |
5125 | &rdev, &netdev); | |
5126 | if (err) | |
5127 | return err; | |
5128 | dev_put(netdev); | |
5129 | phy_idx = rdev->wiphy_idx; | |
5130 | cfg80211_unlock_rdev(rdev); | |
5131 | } | |
71063f0e WYG |
5132 | if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]) |
5133 | cb->args[1] = | |
5134 | (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]; | |
5135 | } | |
5136 | ||
5137 | if (cb->args[1]) { | |
5138 | data = nla_data((void *)cb->args[1]); | |
5139 | data_len = nla_len((void *)cb->args[1]); | |
5140 | } | |
5141 | ||
5142 | mutex_lock(&cfg80211_mutex); | |
00918d33 JB |
5143 | rdev = cfg80211_rdev_by_wiphy_idx(phy_idx); |
5144 | if (!rdev) { | |
71063f0e WYG |
5145 | mutex_unlock(&cfg80211_mutex); |
5146 | return -ENOENT; | |
5147 | } | |
00918d33 | 5148 | cfg80211_lock_rdev(rdev); |
71063f0e WYG |
5149 | mutex_unlock(&cfg80211_mutex); |
5150 | ||
00918d33 | 5151 | if (!rdev->ops->testmode_dump) { |
71063f0e WYG |
5152 | err = -EOPNOTSUPP; |
5153 | goto out_err; | |
5154 | } | |
5155 | ||
5156 | while (1) { | |
5157 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid, | |
5158 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
5159 | NL80211_CMD_TESTMODE); | |
5160 | struct nlattr *tmdata; | |
5161 | ||
9360ffd1 | 5162 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) { |
71063f0e WYG |
5163 | genlmsg_cancel(skb, hdr); |
5164 | break; | |
5165 | } | |
5166 | ||
5167 | tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
5168 | if (!tmdata) { | |
5169 | genlmsg_cancel(skb, hdr); | |
5170 | break; | |
5171 | } | |
00918d33 JB |
5172 | err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb, |
5173 | data, data_len); | |
71063f0e WYG |
5174 | nla_nest_end(skb, tmdata); |
5175 | ||
5176 | if (err == -ENOBUFS || err == -ENOENT) { | |
5177 | genlmsg_cancel(skb, hdr); | |
5178 | break; | |
5179 | } else if (err) { | |
5180 | genlmsg_cancel(skb, hdr); | |
5181 | goto out_err; | |
5182 | } | |
5183 | ||
5184 | genlmsg_end(skb, hdr); | |
5185 | } | |
5186 | ||
5187 | err = skb->len; | |
5188 | /* see above */ | |
5189 | cb->args[0] = phy_idx + 1; | |
5190 | out_err: | |
00918d33 | 5191 | cfg80211_unlock_rdev(rdev); |
71063f0e WYG |
5192 | return err; |
5193 | } | |
5194 | ||
aff89a9b JB |
5195 | static struct sk_buff * |
5196 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
5197 | int approxlen, u32 pid, u32 seq, gfp_t gfp) | |
5198 | { | |
5199 | struct sk_buff *skb; | |
5200 | void *hdr; | |
5201 | struct nlattr *data; | |
5202 | ||
5203 | skb = nlmsg_new(approxlen + 100, gfp); | |
5204 | if (!skb) | |
5205 | return NULL; | |
5206 | ||
5207 | hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE); | |
5208 | if (!hdr) { | |
5209 | kfree_skb(skb); | |
5210 | return NULL; | |
5211 | } | |
5212 | ||
9360ffd1 DM |
5213 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) |
5214 | goto nla_put_failure; | |
aff89a9b JB |
5215 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); |
5216 | ||
5217 | ((void **)skb->cb)[0] = rdev; | |
5218 | ((void **)skb->cb)[1] = hdr; | |
5219 | ((void **)skb->cb)[2] = data; | |
5220 | ||
5221 | return skb; | |
5222 | ||
5223 | nla_put_failure: | |
5224 | kfree_skb(skb); | |
5225 | return NULL; | |
5226 | } | |
5227 | ||
5228 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
5229 | int approxlen) | |
5230 | { | |
5231 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
5232 | ||
5233 | if (WARN_ON(!rdev->testmode_info)) | |
5234 | return NULL; | |
5235 | ||
5236 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
5237 | rdev->testmode_info->snd_pid, | |
5238 | rdev->testmode_info->snd_seq, | |
5239 | GFP_KERNEL); | |
5240 | } | |
5241 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
5242 | ||
5243 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
5244 | { | |
5245 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
5246 | void *hdr = ((void **)skb->cb)[1]; | |
5247 | struct nlattr *data = ((void **)skb->cb)[2]; | |
5248 | ||
5249 | if (WARN_ON(!rdev->testmode_info)) { | |
5250 | kfree_skb(skb); | |
5251 | return -EINVAL; | |
5252 | } | |
5253 | ||
5254 | nla_nest_end(skb, data); | |
5255 | genlmsg_end(skb, hdr); | |
5256 | return genlmsg_reply(skb, rdev->testmode_info); | |
5257 | } | |
5258 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
5259 | ||
5260 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
5261 | int approxlen, gfp_t gfp) | |
5262 | { | |
5263 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
5264 | ||
5265 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
5266 | } | |
5267 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
5268 | ||
5269 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
5270 | { | |
5271 | void *hdr = ((void **)skb->cb)[1]; | |
5272 | struct nlattr *data = ((void **)skb->cb)[2]; | |
5273 | ||
5274 | nla_nest_end(skb, data); | |
5275 | genlmsg_end(skb, hdr); | |
5276 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
5277 | } | |
5278 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
5279 | #endif | |
5280 | ||
b23aa676 SO |
5281 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
5282 | { | |
4c476991 JB |
5283 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5284 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
5285 | struct cfg80211_connect_params connect; |
5286 | struct wiphy *wiphy; | |
fffd0934 | 5287 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
5288 | int err; |
5289 | ||
5290 | memset(&connect, 0, sizeof(connect)); | |
5291 | ||
5292 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
5293 | return -EINVAL; | |
5294 | ||
5295 | if (!info->attrs[NL80211_ATTR_SSID] || | |
5296 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
5297 | return -EINVAL; | |
5298 | ||
5299 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
5300 | connect.auth_type = | |
5301 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
5302 | if (!nl80211_valid_auth_type(connect.auth_type)) | |
5303 | return -EINVAL; | |
5304 | } else | |
5305 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
5306 | ||
5307 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
5308 | ||
c0692b8f | 5309 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 5310 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
5311 | if (err) |
5312 | return err; | |
b23aa676 | 5313 | |
074ac8df | 5314 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5315 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5316 | return -EOPNOTSUPP; | |
b23aa676 | 5317 | |
79c97e97 | 5318 | wiphy = &rdev->wiphy; |
b23aa676 | 5319 | |
4486ea98 BS |
5320 | connect.bg_scan_period = -1; |
5321 | if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && | |
5322 | (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { | |
5323 | connect.bg_scan_period = | |
5324 | nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); | |
5325 | } | |
5326 | ||
b23aa676 SO |
5327 | if (info->attrs[NL80211_ATTR_MAC]) |
5328 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5329 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
5330 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
5331 | ||
5332 | if (info->attrs[NL80211_ATTR_IE]) { | |
5333 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
5334 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5335 | } | |
5336 | ||
5337 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
5338 | connect.channel = | |
5339 | ieee80211_get_channel(wiphy, | |
5340 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
5341 | if (!connect.channel || | |
4c476991 JB |
5342 | connect.channel->flags & IEEE80211_CHAN_DISABLED) |
5343 | return -EINVAL; | |
b23aa676 SO |
5344 | } |
5345 | ||
fffd0934 JB |
5346 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
5347 | connkeys = nl80211_parse_connkeys(rdev, | |
5348 | info->attrs[NL80211_ATTR_KEYS]); | |
4c476991 JB |
5349 | if (IS_ERR(connkeys)) |
5350 | return PTR_ERR(connkeys); | |
fffd0934 JB |
5351 | } |
5352 | ||
7e7c8926 BG |
5353 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
5354 | connect.flags |= ASSOC_REQ_DISABLE_HT; | |
5355 | ||
5356 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
5357 | memcpy(&connect.ht_capa_mask, | |
5358 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
5359 | sizeof(connect.ht_capa_mask)); | |
5360 | ||
5361 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
5362 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
5363 | return -EINVAL; | |
5364 | memcpy(&connect.ht_capa, | |
5365 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
5366 | sizeof(connect.ht_capa)); | |
5367 | } | |
5368 | ||
fffd0934 | 5369 | err = cfg80211_connect(rdev, dev, &connect, connkeys); |
fffd0934 JB |
5370 | if (err) |
5371 | kfree(connkeys); | |
b23aa676 SO |
5372 | return err; |
5373 | } | |
5374 | ||
5375 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
5376 | { | |
4c476991 JB |
5377 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5378 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
5379 | u16 reason; |
5380 | ||
5381 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5382 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
5383 | else | |
5384 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
5385 | ||
5386 | if (reason == 0) | |
5387 | return -EINVAL; | |
5388 | ||
074ac8df | 5389 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5390 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5391 | return -EOPNOTSUPP; | |
b23aa676 | 5392 | |
4c476991 | 5393 | return cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
5394 | } |
5395 | ||
463d0183 JB |
5396 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
5397 | { | |
4c476991 | 5398 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
463d0183 JB |
5399 | struct net *net; |
5400 | int err; | |
5401 | u32 pid; | |
5402 | ||
5403 | if (!info->attrs[NL80211_ATTR_PID]) | |
5404 | return -EINVAL; | |
5405 | ||
5406 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
5407 | ||
463d0183 | 5408 | net = get_net_ns_by_pid(pid); |
4c476991 JB |
5409 | if (IS_ERR(net)) |
5410 | return PTR_ERR(net); | |
463d0183 JB |
5411 | |
5412 | err = 0; | |
5413 | ||
5414 | /* check if anything to do */ | |
4c476991 JB |
5415 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
5416 | err = cfg80211_switch_netns(rdev, net); | |
463d0183 | 5417 | |
463d0183 | 5418 | put_net(net); |
463d0183 JB |
5419 | return err; |
5420 | } | |
5421 | ||
67fbb16b SO |
5422 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
5423 | { | |
4c476991 | 5424 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
67fbb16b SO |
5425 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
5426 | struct cfg80211_pmksa *pmksa) = NULL; | |
4c476991 | 5427 | struct net_device *dev = info->user_ptr[1]; |
67fbb16b SO |
5428 | struct cfg80211_pmksa pmksa; |
5429 | ||
5430 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
5431 | ||
5432 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5433 | return -EINVAL; | |
5434 | ||
5435 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
5436 | return -EINVAL; | |
5437 | ||
67fbb16b SO |
5438 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
5439 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5440 | ||
074ac8df | 5441 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5442 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5443 | return -EOPNOTSUPP; | |
67fbb16b SO |
5444 | |
5445 | switch (info->genlhdr->cmd) { | |
5446 | case NL80211_CMD_SET_PMKSA: | |
5447 | rdev_ops = rdev->ops->set_pmksa; | |
5448 | break; | |
5449 | case NL80211_CMD_DEL_PMKSA: | |
5450 | rdev_ops = rdev->ops->del_pmksa; | |
5451 | break; | |
5452 | default: | |
5453 | WARN_ON(1); | |
5454 | break; | |
5455 | } | |
5456 | ||
4c476991 JB |
5457 | if (!rdev_ops) |
5458 | return -EOPNOTSUPP; | |
67fbb16b | 5459 | |
4c476991 | 5460 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
67fbb16b SO |
5461 | } |
5462 | ||
5463 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
5464 | { | |
4c476991 JB |
5465 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5466 | struct net_device *dev = info->user_ptr[1]; | |
67fbb16b | 5467 | |
074ac8df | 5468 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5469 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5470 | return -EOPNOTSUPP; | |
67fbb16b | 5471 | |
4c476991 JB |
5472 | if (!rdev->ops->flush_pmksa) |
5473 | return -EOPNOTSUPP; | |
67fbb16b | 5474 | |
4c476991 | 5475 | return rdev->ops->flush_pmksa(&rdev->wiphy, dev); |
67fbb16b SO |
5476 | } |
5477 | ||
109086ce AN |
5478 | static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) |
5479 | { | |
5480 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5481 | struct net_device *dev = info->user_ptr[1]; | |
5482 | u8 action_code, dialog_token; | |
5483 | u16 status_code; | |
5484 | u8 *peer; | |
5485 | ||
5486 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
5487 | !rdev->ops->tdls_mgmt) | |
5488 | return -EOPNOTSUPP; | |
5489 | ||
5490 | if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || | |
5491 | !info->attrs[NL80211_ATTR_STATUS_CODE] || | |
5492 | !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || | |
5493 | !info->attrs[NL80211_ATTR_IE] || | |
5494 | !info->attrs[NL80211_ATTR_MAC]) | |
5495 | return -EINVAL; | |
5496 | ||
5497 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5498 | action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); | |
5499 | status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); | |
5500 | dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); | |
5501 | ||
5502 | return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code, | |
5503 | dialog_token, status_code, | |
5504 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
5505 | nla_len(info->attrs[NL80211_ATTR_IE])); | |
5506 | } | |
5507 | ||
5508 | static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) | |
5509 | { | |
5510 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5511 | struct net_device *dev = info->user_ptr[1]; | |
5512 | enum nl80211_tdls_operation operation; | |
5513 | u8 *peer; | |
5514 | ||
5515 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
5516 | !rdev->ops->tdls_oper) | |
5517 | return -EOPNOTSUPP; | |
5518 | ||
5519 | if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || | |
5520 | !info->attrs[NL80211_ATTR_MAC]) | |
5521 | return -EINVAL; | |
5522 | ||
5523 | operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); | |
5524 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5525 | ||
5526 | return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation); | |
5527 | } | |
5528 | ||
9588bbd5 JM |
5529 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
5530 | struct genl_info *info) | |
5531 | { | |
4c476991 JB |
5532 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5533 | struct net_device *dev = info->user_ptr[1]; | |
9588bbd5 JM |
5534 | struct ieee80211_channel *chan; |
5535 | struct sk_buff *msg; | |
5536 | void *hdr; | |
5537 | u64 cookie; | |
5538 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
5539 | u32 freq, duration; | |
5540 | int err; | |
5541 | ||
5542 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
5543 | !info->attrs[NL80211_ATTR_DURATION]) | |
5544 | return -EINVAL; | |
5545 | ||
5546 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
5547 | ||
ebf348fc JB |
5548 | if (!rdev->ops->remain_on_channel || |
5549 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) | |
5550 | return -EOPNOTSUPP; | |
5551 | ||
9588bbd5 | 5552 | /* |
ebf348fc JB |
5553 | * We should be on that channel for at least a minimum amount of |
5554 | * time (10ms) but no longer than the driver supports. | |
9588bbd5 | 5555 | */ |
ebf348fc | 5556 | if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
a293911d | 5557 | duration > rdev->wiphy.max_remain_on_channel_duration) |
9588bbd5 JM |
5558 | return -EINVAL; |
5559 | ||
cd6c6598 JB |
5560 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && |
5561 | !nl80211_valid_channel_type(info, &channel_type)) | |
5562 | return -EINVAL; | |
9588bbd5 JM |
5563 | |
5564 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
5565 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
5566 | if (chan == NULL) |
5567 | return -EINVAL; | |
9588bbd5 JM |
5568 | |
5569 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
5570 | if (!msg) |
5571 | return -ENOMEM; | |
9588bbd5 JM |
5572 | |
5573 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
5574 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
5575 | ||
5576 | if (IS_ERR(hdr)) { | |
5577 | err = PTR_ERR(hdr); | |
5578 | goto free_msg; | |
5579 | } | |
5580 | ||
5581 | err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan, | |
5582 | channel_type, duration, &cookie); | |
5583 | ||
5584 | if (err) | |
5585 | goto free_msg; | |
5586 | ||
9360ffd1 DM |
5587 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
5588 | goto nla_put_failure; | |
9588bbd5 JM |
5589 | |
5590 | genlmsg_end(msg, hdr); | |
4c476991 JB |
5591 | |
5592 | return genlmsg_reply(msg, info); | |
9588bbd5 JM |
5593 | |
5594 | nla_put_failure: | |
5595 | err = -ENOBUFS; | |
5596 | free_msg: | |
5597 | nlmsg_free(msg); | |
9588bbd5 JM |
5598 | return err; |
5599 | } | |
5600 | ||
5601 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
5602 | struct genl_info *info) | |
5603 | { | |
4c476991 JB |
5604 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5605 | struct net_device *dev = info->user_ptr[1]; | |
9588bbd5 | 5606 | u64 cookie; |
9588bbd5 JM |
5607 | |
5608 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
5609 | return -EINVAL; | |
5610 | ||
4c476991 JB |
5611 | if (!rdev->ops->cancel_remain_on_channel) |
5612 | return -EOPNOTSUPP; | |
9588bbd5 | 5613 | |
9588bbd5 JM |
5614 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
5615 | ||
4c476991 | 5616 | return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); |
9588bbd5 JM |
5617 | } |
5618 | ||
13ae75b1 JM |
5619 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
5620 | u8 *rates, u8 rates_len) | |
5621 | { | |
5622 | u8 i; | |
5623 | u32 mask = 0; | |
5624 | ||
5625 | for (i = 0; i < rates_len; i++) { | |
5626 | int rate = (rates[i] & 0x7f) * 5; | |
5627 | int ridx; | |
5628 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
5629 | struct ieee80211_rate *srate = | |
5630 | &sband->bitrates[ridx]; | |
5631 | if (rate == srate->bitrate) { | |
5632 | mask |= 1 << ridx; | |
5633 | break; | |
5634 | } | |
5635 | } | |
5636 | if (ridx == sband->n_bitrates) | |
5637 | return 0; /* rate not found */ | |
5638 | } | |
5639 | ||
5640 | return mask; | |
5641 | } | |
5642 | ||
24db78c0 SW |
5643 | static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, |
5644 | u8 *rates, u8 rates_len, | |
5645 | u8 mcs[IEEE80211_HT_MCS_MASK_LEN]) | |
5646 | { | |
5647 | u8 i; | |
5648 | ||
5649 | memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN); | |
5650 | ||
5651 | for (i = 0; i < rates_len; i++) { | |
5652 | int ridx, rbit; | |
5653 | ||
5654 | ridx = rates[i] / 8; | |
5655 | rbit = BIT(rates[i] % 8); | |
5656 | ||
5657 | /* check validity */ | |
910570b5 | 5658 | if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN)) |
24db78c0 SW |
5659 | return false; |
5660 | ||
5661 | /* check availability */ | |
5662 | if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) | |
5663 | mcs[ridx] |= rbit; | |
5664 | else | |
5665 | return false; | |
5666 | } | |
5667 | ||
5668 | return true; | |
5669 | } | |
5670 | ||
b54452b0 | 5671 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
5672 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
5673 | .len = NL80211_MAX_SUPP_RATES }, | |
24db78c0 SW |
5674 | [NL80211_TXRATE_MCS] = { .type = NLA_BINARY, |
5675 | .len = NL80211_MAX_SUPP_HT_RATES }, | |
13ae75b1 JM |
5676 | }; |
5677 | ||
5678 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
5679 | struct genl_info *info) | |
5680 | { | |
5681 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4c476991 | 5682 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
13ae75b1 | 5683 | struct cfg80211_bitrate_mask mask; |
4c476991 JB |
5684 | int rem, i; |
5685 | struct net_device *dev = info->user_ptr[1]; | |
13ae75b1 JM |
5686 | struct nlattr *tx_rates; |
5687 | struct ieee80211_supported_band *sband; | |
5688 | ||
5689 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
5690 | return -EINVAL; | |
5691 | ||
4c476991 JB |
5692 | if (!rdev->ops->set_bitrate_mask) |
5693 | return -EOPNOTSUPP; | |
13ae75b1 JM |
5694 | |
5695 | memset(&mask, 0, sizeof(mask)); | |
5696 | /* Default to all rates enabled */ | |
5697 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
5698 | sband = rdev->wiphy.bands[i]; | |
5699 | mask.control[i].legacy = | |
5700 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
24db78c0 SW |
5701 | if (sband) |
5702 | memcpy(mask.control[i].mcs, | |
5703 | sband->ht_cap.mcs.rx_mask, | |
5704 | sizeof(mask.control[i].mcs)); | |
5705 | else | |
5706 | memset(mask.control[i].mcs, 0, | |
5707 | sizeof(mask.control[i].mcs)); | |
13ae75b1 JM |
5708 | } |
5709 | ||
5710 | /* | |
5711 | * The nested attribute uses enum nl80211_band as the index. This maps | |
5712 | * directly to the enum ieee80211_band values used in cfg80211. | |
5713 | */ | |
24db78c0 | 5714 | BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); |
13ae75b1 JM |
5715 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) |
5716 | { | |
5717 | enum ieee80211_band band = nla_type(tx_rates); | |
4c476991 JB |
5718 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
5719 | return -EINVAL; | |
13ae75b1 | 5720 | sband = rdev->wiphy.bands[band]; |
4c476991 JB |
5721 | if (sband == NULL) |
5722 | return -EINVAL; | |
13ae75b1 JM |
5723 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
5724 | nla_len(tx_rates), nl80211_txattr_policy); | |
5725 | if (tb[NL80211_TXRATE_LEGACY]) { | |
5726 | mask.control[band].legacy = rateset_to_mask( | |
5727 | sband, | |
5728 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
5729 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
218d2e26 BS |
5730 | if ((mask.control[band].legacy == 0) && |
5731 | nla_len(tb[NL80211_TXRATE_LEGACY])) | |
5732 | return -EINVAL; | |
24db78c0 SW |
5733 | } |
5734 | if (tb[NL80211_TXRATE_MCS]) { | |
5735 | if (!ht_rateset_to_mask( | |
5736 | sband, | |
5737 | nla_data(tb[NL80211_TXRATE_MCS]), | |
5738 | nla_len(tb[NL80211_TXRATE_MCS]), | |
5739 | mask.control[band].mcs)) | |
5740 | return -EINVAL; | |
5741 | } | |
5742 | ||
5743 | if (mask.control[band].legacy == 0) { | |
5744 | /* don't allow empty legacy rates if HT | |
5745 | * is not even supported. */ | |
5746 | if (!rdev->wiphy.bands[band]->ht_cap.ht_supported) | |
5747 | return -EINVAL; | |
5748 | ||
5749 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) | |
5750 | if (mask.control[band].mcs[i]) | |
5751 | break; | |
5752 | ||
5753 | /* legacy and mcs rates may not be both empty */ | |
5754 | if (i == IEEE80211_HT_MCS_MASK_LEN) | |
4c476991 | 5755 | return -EINVAL; |
13ae75b1 JM |
5756 | } |
5757 | } | |
5758 | ||
4c476991 | 5759 | return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); |
13ae75b1 JM |
5760 | } |
5761 | ||
2e161f78 | 5762 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 5763 | { |
4c476991 JB |
5764 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5765 | struct net_device *dev = info->user_ptr[1]; | |
2e161f78 | 5766 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
5767 | |
5768 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
5769 | return -EINVAL; | |
5770 | ||
2e161f78 JB |
5771 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
5772 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 | 5773 | |
9d38d85d | 5774 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
074ac8df | 5775 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
663fcafd JB |
5776 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && |
5777 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
5778 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
c7108a71 | 5779 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
5780 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
5781 | return -EOPNOTSUPP; | |
026331c4 JM |
5782 | |
5783 | /* not much point in registering if we can't reply */ | |
4c476991 JB |
5784 | if (!rdev->ops->mgmt_tx) |
5785 | return -EOPNOTSUPP; | |
026331c4 | 5786 | |
4c476991 | 5787 | return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid, |
2e161f78 | 5788 | frame_type, |
026331c4 JM |
5789 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
5790 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
026331c4 JM |
5791 | } |
5792 | ||
2e161f78 | 5793 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 5794 | { |
4c476991 JB |
5795 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5796 | struct net_device *dev = info->user_ptr[1]; | |
026331c4 JM |
5797 | struct ieee80211_channel *chan; |
5798 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
252aa631 | 5799 | bool channel_type_valid = false; |
026331c4 JM |
5800 | u32 freq; |
5801 | int err; | |
d64d373f | 5802 | void *hdr = NULL; |
026331c4 | 5803 | u64 cookie; |
e247bd90 | 5804 | struct sk_buff *msg = NULL; |
f7ca38df | 5805 | unsigned int wait = 0; |
e247bd90 JB |
5806 | bool offchan, no_cck, dont_wait_for_ack; |
5807 | ||
5808 | dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK]; | |
026331c4 JM |
5809 | |
5810 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
5811 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
5812 | return -EINVAL; | |
5813 | ||
4c476991 JB |
5814 | if (!rdev->ops->mgmt_tx) |
5815 | return -EOPNOTSUPP; | |
026331c4 | 5816 | |
9d38d85d | 5817 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
074ac8df | 5818 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
663fcafd JB |
5819 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && |
5820 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
5821 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
c7108a71 | 5822 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
5823 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
5824 | return -EOPNOTSUPP; | |
026331c4 | 5825 | |
f7ca38df | 5826 | if (info->attrs[NL80211_ATTR_DURATION]) { |
7c4ef712 | 5827 | if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
f7ca38df JB |
5828 | return -EINVAL; |
5829 | wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
ebf348fc JB |
5830 | |
5831 | /* | |
5832 | * We should wait on the channel for at least a minimum amount | |
5833 | * of time (10ms) but no longer than the driver supports. | |
5834 | */ | |
5835 | if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || | |
5836 | wait > rdev->wiphy.max_remain_on_channel_duration) | |
5837 | return -EINVAL; | |
5838 | ||
f7ca38df JB |
5839 | } |
5840 | ||
026331c4 | 5841 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
cd6c6598 | 5842 | if (!nl80211_valid_channel_type(info, &channel_type)) |
4c476991 | 5843 | return -EINVAL; |
252aa631 | 5844 | channel_type_valid = true; |
026331c4 JM |
5845 | } |
5846 | ||
f7ca38df JB |
5847 | offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; |
5848 | ||
7c4ef712 JB |
5849 | if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
5850 | return -EINVAL; | |
5851 | ||
e9f935e3 RM |
5852 | no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); |
5853 | ||
026331c4 JM |
5854 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); |
5855 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
5856 | if (chan == NULL) |
5857 | return -EINVAL; | |
026331c4 | 5858 | |
e247bd90 JB |
5859 | if (!dont_wait_for_ack) { |
5860 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5861 | if (!msg) | |
5862 | return -ENOMEM; | |
026331c4 | 5863 | |
e247bd90 JB |
5864 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, |
5865 | NL80211_CMD_FRAME); | |
026331c4 | 5866 | |
e247bd90 JB |
5867 | if (IS_ERR(hdr)) { |
5868 | err = PTR_ERR(hdr); | |
5869 | goto free_msg; | |
5870 | } | |
026331c4 | 5871 | } |
e247bd90 | 5872 | |
f7ca38df JB |
5873 | err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type, |
5874 | channel_type_valid, wait, | |
2e161f78 JB |
5875 | nla_data(info->attrs[NL80211_ATTR_FRAME]), |
5876 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
e247bd90 | 5877 | no_cck, dont_wait_for_ack, &cookie); |
026331c4 JM |
5878 | if (err) |
5879 | goto free_msg; | |
5880 | ||
e247bd90 | 5881 | if (msg) { |
9360ffd1 DM |
5882 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
5883 | goto nla_put_failure; | |
026331c4 | 5884 | |
e247bd90 JB |
5885 | genlmsg_end(msg, hdr); |
5886 | return genlmsg_reply(msg, info); | |
5887 | } | |
5888 | ||
5889 | return 0; | |
026331c4 JM |
5890 | |
5891 | nla_put_failure: | |
5892 | err = -ENOBUFS; | |
5893 | free_msg: | |
5894 | nlmsg_free(msg); | |
026331c4 JM |
5895 | return err; |
5896 | } | |
5897 | ||
f7ca38df JB |
5898 | static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) |
5899 | { | |
5900 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5901 | struct net_device *dev = info->user_ptr[1]; | |
5902 | u64 cookie; | |
5903 | ||
5904 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
5905 | return -EINVAL; | |
5906 | ||
5907 | if (!rdev->ops->mgmt_tx_cancel_wait) | |
5908 | return -EOPNOTSUPP; | |
5909 | ||
5910 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
5911 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && | |
5912 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && | |
5913 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
5914 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
5915 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
5916 | return -EOPNOTSUPP; | |
5917 | ||
5918 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
5919 | ||
5920 | return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie); | |
5921 | } | |
5922 | ||
ffb9eb3d KV |
5923 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
5924 | { | |
4c476991 | 5925 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d | 5926 | struct wireless_dev *wdev; |
4c476991 | 5927 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
5928 | u8 ps_state; |
5929 | bool state; | |
5930 | int err; | |
5931 | ||
4c476991 JB |
5932 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
5933 | return -EINVAL; | |
ffb9eb3d KV |
5934 | |
5935 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
5936 | ||
4c476991 JB |
5937 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
5938 | return -EINVAL; | |
ffb9eb3d KV |
5939 | |
5940 | wdev = dev->ieee80211_ptr; | |
5941 | ||
4c476991 JB |
5942 | if (!rdev->ops->set_power_mgmt) |
5943 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
5944 | |
5945 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
5946 | ||
5947 | if (state == wdev->ps) | |
4c476991 | 5948 | return 0; |
ffb9eb3d | 5949 | |
4c476991 JB |
5950 | err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state, |
5951 | wdev->ps_timeout); | |
5952 | if (!err) | |
5953 | wdev->ps = state; | |
ffb9eb3d KV |
5954 | return err; |
5955 | } | |
5956 | ||
5957 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
5958 | { | |
4c476991 | 5959 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d KV |
5960 | enum nl80211_ps_state ps_state; |
5961 | struct wireless_dev *wdev; | |
4c476991 | 5962 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
5963 | struct sk_buff *msg; |
5964 | void *hdr; | |
5965 | int err; | |
5966 | ||
ffb9eb3d KV |
5967 | wdev = dev->ieee80211_ptr; |
5968 | ||
4c476991 JB |
5969 | if (!rdev->ops->set_power_mgmt) |
5970 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
5971 | |
5972 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
5973 | if (!msg) |
5974 | return -ENOMEM; | |
ffb9eb3d KV |
5975 | |
5976 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
5977 | NL80211_CMD_GET_POWER_SAVE); | |
5978 | if (!hdr) { | |
4c476991 | 5979 | err = -ENOBUFS; |
ffb9eb3d KV |
5980 | goto free_msg; |
5981 | } | |
5982 | ||
5983 | if (wdev->ps) | |
5984 | ps_state = NL80211_PS_ENABLED; | |
5985 | else | |
5986 | ps_state = NL80211_PS_DISABLED; | |
5987 | ||
9360ffd1 DM |
5988 | if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state)) |
5989 | goto nla_put_failure; | |
ffb9eb3d KV |
5990 | |
5991 | genlmsg_end(msg, hdr); | |
4c476991 | 5992 | return genlmsg_reply(msg, info); |
ffb9eb3d | 5993 | |
4c476991 | 5994 | nla_put_failure: |
ffb9eb3d | 5995 | err = -ENOBUFS; |
4c476991 | 5996 | free_msg: |
ffb9eb3d | 5997 | nlmsg_free(msg); |
ffb9eb3d KV |
5998 | return err; |
5999 | } | |
6000 | ||
d6dc1a38 JO |
6001 | static struct nla_policy |
6002 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
6003 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
6004 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
6005 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
6006 | }; | |
6007 | ||
6008 | static int nl80211_set_cqm_rssi(struct genl_info *info, | |
6009 | s32 threshold, u32 hysteresis) | |
6010 | { | |
4c476991 | 6011 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
d6dc1a38 | 6012 | struct wireless_dev *wdev; |
4c476991 | 6013 | struct net_device *dev = info->user_ptr[1]; |
d6dc1a38 JO |
6014 | |
6015 | if (threshold > 0) | |
6016 | return -EINVAL; | |
6017 | ||
d6dc1a38 JO |
6018 | wdev = dev->ieee80211_ptr; |
6019 | ||
4c476991 JB |
6020 | if (!rdev->ops->set_cqm_rssi_config) |
6021 | return -EOPNOTSUPP; | |
d6dc1a38 | 6022 | |
074ac8df | 6023 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
6024 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6025 | return -EOPNOTSUPP; | |
d6dc1a38 | 6026 | |
4c476991 JB |
6027 | return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev, |
6028 | threshold, hysteresis); | |
d6dc1a38 JO |
6029 | } |
6030 | ||
6031 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
6032 | { | |
6033 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
6034 | struct nlattr *cqm; | |
6035 | int err; | |
6036 | ||
6037 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
6038 | if (!cqm) { | |
6039 | err = -EINVAL; | |
6040 | goto out; | |
6041 | } | |
6042 | ||
6043 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
6044 | nl80211_attr_cqm_policy); | |
6045 | if (err) | |
6046 | goto out; | |
6047 | ||
6048 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
6049 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
6050 | s32 threshold; | |
6051 | u32 hysteresis; | |
6052 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
6053 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
6054 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
6055 | } else | |
6056 | err = -EINVAL; | |
6057 | ||
6058 | out: | |
6059 | return err; | |
6060 | } | |
6061 | ||
29cbe68c JB |
6062 | static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) |
6063 | { | |
6064 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6065 | struct net_device *dev = info->user_ptr[1]; | |
6066 | struct mesh_config cfg; | |
c80d545d | 6067 | struct mesh_setup setup; |
29cbe68c JB |
6068 | int err; |
6069 | ||
6070 | /* start with default */ | |
6071 | memcpy(&cfg, &default_mesh_config, sizeof(cfg)); | |
c80d545d | 6072 | memcpy(&setup, &default_mesh_setup, sizeof(setup)); |
29cbe68c | 6073 | |
24bdd9f4 | 6074 | if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { |
29cbe68c | 6075 | /* and parse parameters if given */ |
24bdd9f4 | 6076 | err = nl80211_parse_mesh_config(info, &cfg, NULL); |
29cbe68c JB |
6077 | if (err) |
6078 | return err; | |
6079 | } | |
6080 | ||
6081 | if (!info->attrs[NL80211_ATTR_MESH_ID] || | |
6082 | !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) | |
6083 | return -EINVAL; | |
6084 | ||
c80d545d JC |
6085 | setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
6086 | setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
6087 | ||
4bb62344 CYY |
6088 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
6089 | !nl80211_parse_mcast_rate(rdev, setup.mcast_rate, | |
6090 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
6091 | return -EINVAL; | |
6092 | ||
c80d545d JC |
6093 | if (info->attrs[NL80211_ATTR_MESH_SETUP]) { |
6094 | /* parse additional setup parameters if given */ | |
6095 | err = nl80211_parse_mesh_setup(info, &setup); | |
6096 | if (err) | |
6097 | return err; | |
6098 | } | |
6099 | ||
cc1d2806 JB |
6100 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
6101 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
6102 | ||
6103 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && | |
6104 | !nl80211_valid_channel_type(info, &channel_type)) | |
6105 | return -EINVAL; | |
6106 | ||
6107 | setup.channel = rdev_freq_to_chan(rdev, | |
6108 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
6109 | channel_type); | |
6110 | if (!setup.channel) | |
6111 | return -EINVAL; | |
6112 | setup.channel_type = channel_type; | |
6113 | } else { | |
6114 | /* cfg80211_join_mesh() will sort it out */ | |
6115 | setup.channel = NULL; | |
6116 | } | |
6117 | ||
c80d545d | 6118 | return cfg80211_join_mesh(rdev, dev, &setup, &cfg); |
29cbe68c JB |
6119 | } |
6120 | ||
6121 | static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) | |
6122 | { | |
6123 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6124 | struct net_device *dev = info->user_ptr[1]; | |
6125 | ||
6126 | return cfg80211_leave_mesh(rdev, dev); | |
6127 | } | |
6128 | ||
ff1b6e69 JB |
6129 | static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) |
6130 | { | |
6131 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6132 | struct sk_buff *msg; | |
6133 | void *hdr; | |
6134 | ||
6135 | if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) | |
6136 | return -EOPNOTSUPP; | |
6137 | ||
6138 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6139 | if (!msg) | |
6140 | return -ENOMEM; | |
6141 | ||
6142 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
6143 | NL80211_CMD_GET_WOWLAN); | |
6144 | if (!hdr) | |
6145 | goto nla_put_failure; | |
6146 | ||
6147 | if (rdev->wowlan) { | |
6148 | struct nlattr *nl_wowlan; | |
6149 | ||
6150 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
6151 | if (!nl_wowlan) | |
6152 | goto nla_put_failure; | |
6153 | ||
9360ffd1 DM |
6154 | if ((rdev->wowlan->any && |
6155 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || | |
6156 | (rdev->wowlan->disconnect && | |
6157 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || | |
6158 | (rdev->wowlan->magic_pkt && | |
6159 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || | |
6160 | (rdev->wowlan->gtk_rekey_failure && | |
6161 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || | |
6162 | (rdev->wowlan->eap_identity_req && | |
6163 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || | |
6164 | (rdev->wowlan->four_way_handshake && | |
6165 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || | |
6166 | (rdev->wowlan->rfkill_release && | |
6167 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) | |
6168 | goto nla_put_failure; | |
ff1b6e69 JB |
6169 | if (rdev->wowlan->n_patterns) { |
6170 | struct nlattr *nl_pats, *nl_pat; | |
6171 | int i, pat_len; | |
6172 | ||
6173 | nl_pats = nla_nest_start(msg, | |
6174 | NL80211_WOWLAN_TRIG_PKT_PATTERN); | |
6175 | if (!nl_pats) | |
6176 | goto nla_put_failure; | |
6177 | ||
6178 | for (i = 0; i < rdev->wowlan->n_patterns; i++) { | |
6179 | nl_pat = nla_nest_start(msg, i + 1); | |
6180 | if (!nl_pat) | |
6181 | goto nla_put_failure; | |
6182 | pat_len = rdev->wowlan->patterns[i].pattern_len; | |
9360ffd1 DM |
6183 | if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK, |
6184 | DIV_ROUND_UP(pat_len, 8), | |
6185 | rdev->wowlan->patterns[i].mask) || | |
6186 | nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN, | |
6187 | pat_len, | |
6188 | rdev->wowlan->patterns[i].pattern)) | |
6189 | goto nla_put_failure; | |
ff1b6e69 JB |
6190 | nla_nest_end(msg, nl_pat); |
6191 | } | |
6192 | nla_nest_end(msg, nl_pats); | |
6193 | } | |
6194 | ||
6195 | nla_nest_end(msg, nl_wowlan); | |
6196 | } | |
6197 | ||
6198 | genlmsg_end(msg, hdr); | |
6199 | return genlmsg_reply(msg, info); | |
6200 | ||
6201 | nla_put_failure: | |
6202 | nlmsg_free(msg); | |
6203 | return -ENOBUFS; | |
6204 | } | |
6205 | ||
6206 | static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) | |
6207 | { | |
6208 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6209 | struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; | |
6210 | struct cfg80211_wowlan no_triggers = {}; | |
6211 | struct cfg80211_wowlan new_triggers = {}; | |
6212 | struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan; | |
6213 | int err, i; | |
6d52563f | 6214 | bool prev_enabled = rdev->wowlan; |
ff1b6e69 JB |
6215 | |
6216 | if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) | |
6217 | return -EOPNOTSUPP; | |
6218 | ||
6219 | if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) | |
6220 | goto no_triggers; | |
6221 | ||
6222 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, | |
6223 | nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
6224 | nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
6225 | nl80211_wowlan_policy); | |
6226 | if (err) | |
6227 | return err; | |
6228 | ||
6229 | if (tb[NL80211_WOWLAN_TRIG_ANY]) { | |
6230 | if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) | |
6231 | return -EINVAL; | |
6232 | new_triggers.any = true; | |
6233 | } | |
6234 | ||
6235 | if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { | |
6236 | if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) | |
6237 | return -EINVAL; | |
6238 | new_triggers.disconnect = true; | |
6239 | } | |
6240 | ||
6241 | if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { | |
6242 | if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) | |
6243 | return -EINVAL; | |
6244 | new_triggers.magic_pkt = true; | |
6245 | } | |
6246 | ||
77dbbb13 JB |
6247 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) |
6248 | return -EINVAL; | |
6249 | ||
6250 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) { | |
6251 | if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)) | |
6252 | return -EINVAL; | |
6253 | new_triggers.gtk_rekey_failure = true; | |
6254 | } | |
6255 | ||
6256 | if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) { | |
6257 | if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)) | |
6258 | return -EINVAL; | |
6259 | new_triggers.eap_identity_req = true; | |
6260 | } | |
6261 | ||
6262 | if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) { | |
6263 | if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)) | |
6264 | return -EINVAL; | |
6265 | new_triggers.four_way_handshake = true; | |
6266 | } | |
6267 | ||
6268 | if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) { | |
6269 | if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE)) | |
6270 | return -EINVAL; | |
6271 | new_triggers.rfkill_release = true; | |
6272 | } | |
6273 | ||
ff1b6e69 JB |
6274 | if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { |
6275 | struct nlattr *pat; | |
6276 | int n_patterns = 0; | |
6277 | int rem, pat_len, mask_len; | |
6278 | struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT]; | |
6279 | ||
6280 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
6281 | rem) | |
6282 | n_patterns++; | |
6283 | if (n_patterns > wowlan->n_patterns) | |
6284 | return -EINVAL; | |
6285 | ||
6286 | new_triggers.patterns = kcalloc(n_patterns, | |
6287 | sizeof(new_triggers.patterns[0]), | |
6288 | GFP_KERNEL); | |
6289 | if (!new_triggers.patterns) | |
6290 | return -ENOMEM; | |
6291 | ||
6292 | new_triggers.n_patterns = n_patterns; | |
6293 | i = 0; | |
6294 | ||
6295 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
6296 | rem) { | |
6297 | nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT, | |
6298 | nla_data(pat), nla_len(pat), NULL); | |
6299 | err = -EINVAL; | |
6300 | if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] || | |
6301 | !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]) | |
6302 | goto error; | |
6303 | pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]); | |
6304 | mask_len = DIV_ROUND_UP(pat_len, 8); | |
6305 | if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) != | |
6306 | mask_len) | |
6307 | goto error; | |
6308 | if (pat_len > wowlan->pattern_max_len || | |
6309 | pat_len < wowlan->pattern_min_len) | |
6310 | goto error; | |
6311 | ||
6312 | new_triggers.patterns[i].mask = | |
6313 | kmalloc(mask_len + pat_len, GFP_KERNEL); | |
6314 | if (!new_triggers.patterns[i].mask) { | |
6315 | err = -ENOMEM; | |
6316 | goto error; | |
6317 | } | |
6318 | new_triggers.patterns[i].pattern = | |
6319 | new_triggers.patterns[i].mask + mask_len; | |
6320 | memcpy(new_triggers.patterns[i].mask, | |
6321 | nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]), | |
6322 | mask_len); | |
6323 | new_triggers.patterns[i].pattern_len = pat_len; | |
6324 | memcpy(new_triggers.patterns[i].pattern, | |
6325 | nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]), | |
6326 | pat_len); | |
6327 | i++; | |
6328 | } | |
6329 | } | |
6330 | ||
6331 | if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) { | |
6332 | struct cfg80211_wowlan *ntrig; | |
6333 | ntrig = kmemdup(&new_triggers, sizeof(new_triggers), | |
6334 | GFP_KERNEL); | |
6335 | if (!ntrig) { | |
6336 | err = -ENOMEM; | |
6337 | goto error; | |
6338 | } | |
6339 | cfg80211_rdev_free_wowlan(rdev); | |
6340 | rdev->wowlan = ntrig; | |
6341 | } else { | |
6342 | no_triggers: | |
6343 | cfg80211_rdev_free_wowlan(rdev); | |
6344 | rdev->wowlan = NULL; | |
6345 | } | |
6346 | ||
6d52563f JB |
6347 | if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan) |
6348 | rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan); | |
6349 | ||
ff1b6e69 JB |
6350 | return 0; |
6351 | error: | |
6352 | for (i = 0; i < new_triggers.n_patterns; i++) | |
6353 | kfree(new_triggers.patterns[i].mask); | |
6354 | kfree(new_triggers.patterns); | |
6355 | return err; | |
6356 | } | |
6357 | ||
e5497d76 JB |
6358 | static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) |
6359 | { | |
6360 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6361 | struct net_device *dev = info->user_ptr[1]; | |
6362 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6363 | struct nlattr *tb[NUM_NL80211_REKEY_DATA]; | |
6364 | struct cfg80211_gtk_rekey_data rekey_data; | |
6365 | int err; | |
6366 | ||
6367 | if (!info->attrs[NL80211_ATTR_REKEY_DATA]) | |
6368 | return -EINVAL; | |
6369 | ||
6370 | err = nla_parse(tb, MAX_NL80211_REKEY_DATA, | |
6371 | nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
6372 | nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
6373 | nl80211_rekey_policy); | |
6374 | if (err) | |
6375 | return err; | |
6376 | ||
6377 | if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN) | |
6378 | return -ERANGE; | |
6379 | if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN) | |
6380 | return -ERANGE; | |
6381 | if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN) | |
6382 | return -ERANGE; | |
6383 | ||
6384 | memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]), | |
6385 | NL80211_KEK_LEN); | |
6386 | memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]), | |
6387 | NL80211_KCK_LEN); | |
6388 | memcpy(rekey_data.replay_ctr, | |
6389 | nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]), | |
6390 | NL80211_REPLAY_CTR_LEN); | |
6391 | ||
6392 | wdev_lock(wdev); | |
6393 | if (!wdev->current_bss) { | |
6394 | err = -ENOTCONN; | |
6395 | goto out; | |
6396 | } | |
6397 | ||
6398 | if (!rdev->ops->set_rekey_data) { | |
6399 | err = -EOPNOTSUPP; | |
6400 | goto out; | |
6401 | } | |
6402 | ||
6403 | err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data); | |
6404 | out: | |
6405 | wdev_unlock(wdev); | |
6406 | return err; | |
6407 | } | |
6408 | ||
28946da7 JB |
6409 | static int nl80211_register_unexpected_frame(struct sk_buff *skb, |
6410 | struct genl_info *info) | |
6411 | { | |
6412 | struct net_device *dev = info->user_ptr[1]; | |
6413 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6414 | ||
6415 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
6416 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
6417 | return -EINVAL; | |
6418 | ||
6419 | if (wdev->ap_unexpected_nlpid) | |
6420 | return -EBUSY; | |
6421 | ||
6422 | wdev->ap_unexpected_nlpid = info->snd_pid; | |
6423 | return 0; | |
6424 | } | |
6425 | ||
7f6cf311 JB |
6426 | static int nl80211_probe_client(struct sk_buff *skb, |
6427 | struct genl_info *info) | |
6428 | { | |
6429 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6430 | struct net_device *dev = info->user_ptr[1]; | |
6431 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6432 | struct sk_buff *msg; | |
6433 | void *hdr; | |
6434 | const u8 *addr; | |
6435 | u64 cookie; | |
6436 | int err; | |
6437 | ||
6438 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
6439 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
6440 | return -EOPNOTSUPP; | |
6441 | ||
6442 | if (!info->attrs[NL80211_ATTR_MAC]) | |
6443 | return -EINVAL; | |
6444 | ||
6445 | if (!rdev->ops->probe_client) | |
6446 | return -EOPNOTSUPP; | |
6447 | ||
6448 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6449 | if (!msg) | |
6450 | return -ENOMEM; | |
6451 | ||
6452 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
6453 | NL80211_CMD_PROBE_CLIENT); | |
6454 | ||
6455 | if (IS_ERR(hdr)) { | |
6456 | err = PTR_ERR(hdr); | |
6457 | goto free_msg; | |
6458 | } | |
6459 | ||
6460 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
6461 | ||
6462 | err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie); | |
6463 | if (err) | |
6464 | goto free_msg; | |
6465 | ||
9360ffd1 DM |
6466 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
6467 | goto nla_put_failure; | |
7f6cf311 JB |
6468 | |
6469 | genlmsg_end(msg, hdr); | |
6470 | ||
6471 | return genlmsg_reply(msg, info); | |
6472 | ||
6473 | nla_put_failure: | |
6474 | err = -ENOBUFS; | |
6475 | free_msg: | |
6476 | nlmsg_free(msg); | |
6477 | return err; | |
6478 | } | |
6479 | ||
5e760230 JB |
6480 | static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info) |
6481 | { | |
6482 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6483 | ||
6484 | if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS)) | |
6485 | return -EOPNOTSUPP; | |
6486 | ||
6487 | if (rdev->ap_beacons_nlpid) | |
6488 | return -EBUSY; | |
6489 | ||
6490 | rdev->ap_beacons_nlpid = info->snd_pid; | |
6491 | ||
6492 | return 0; | |
6493 | } | |
6494 | ||
4c476991 JB |
6495 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
6496 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
6497 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
41265714 JB |
6498 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
6499 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
6500 | NL80211_FLAG_CHECK_NETDEV_UP) | |
4c476991 JB |
6501 | |
6502 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, | |
6503 | struct genl_info *info) | |
6504 | { | |
6505 | struct cfg80211_registered_device *rdev; | |
6506 | struct net_device *dev; | |
6507 | int err; | |
6508 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; | |
6509 | ||
6510 | if (rtnl) | |
6511 | rtnl_lock(); | |
6512 | ||
6513 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
6514 | rdev = cfg80211_get_dev_from_info(info); | |
6515 | if (IS_ERR(rdev)) { | |
6516 | if (rtnl) | |
6517 | rtnl_unlock(); | |
6518 | return PTR_ERR(rdev); | |
6519 | } | |
6520 | info->user_ptr[0] = rdev; | |
6521 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { | |
00918d33 JB |
6522 | err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs, |
6523 | &rdev, &dev); | |
4c476991 JB |
6524 | if (err) { |
6525 | if (rtnl) | |
6526 | rtnl_unlock(); | |
6527 | return err; | |
6528 | } | |
41265714 JB |
6529 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && |
6530 | !netif_running(dev)) { | |
d537f5fd JB |
6531 | cfg80211_unlock_rdev(rdev); |
6532 | dev_put(dev); | |
41265714 JB |
6533 | if (rtnl) |
6534 | rtnl_unlock(); | |
6535 | return -ENETDOWN; | |
6536 | } | |
4c476991 JB |
6537 | info->user_ptr[0] = rdev; |
6538 | info->user_ptr[1] = dev; | |
6539 | } | |
6540 | ||
6541 | return 0; | |
6542 | } | |
6543 | ||
6544 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
6545 | struct genl_info *info) | |
6546 | { | |
6547 | if (info->user_ptr[0]) | |
6548 | cfg80211_unlock_rdev(info->user_ptr[0]); | |
6549 | if (info->user_ptr[1]) | |
6550 | dev_put(info->user_ptr[1]); | |
6551 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) | |
6552 | rtnl_unlock(); | |
6553 | } | |
6554 | ||
55682965 JB |
6555 | static struct genl_ops nl80211_ops[] = { |
6556 | { | |
6557 | .cmd = NL80211_CMD_GET_WIPHY, | |
6558 | .doit = nl80211_get_wiphy, | |
6559 | .dumpit = nl80211_dump_wiphy, | |
6560 | .policy = nl80211_policy, | |
6561 | /* can be retrieved by unprivileged users */ | |
4c476991 | 6562 | .internal_flags = NL80211_FLAG_NEED_WIPHY, |
55682965 JB |
6563 | }, |
6564 | { | |
6565 | .cmd = NL80211_CMD_SET_WIPHY, | |
6566 | .doit = nl80211_set_wiphy, | |
6567 | .policy = nl80211_policy, | |
6568 | .flags = GENL_ADMIN_PERM, | |
4c476991 | 6569 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
55682965 JB |
6570 | }, |
6571 | { | |
6572 | .cmd = NL80211_CMD_GET_INTERFACE, | |
6573 | .doit = nl80211_get_interface, | |
6574 | .dumpit = nl80211_dump_interface, | |
6575 | .policy = nl80211_policy, | |
6576 | /* can be retrieved by unprivileged users */ | |
4c476991 | 6577 | .internal_flags = NL80211_FLAG_NEED_NETDEV, |
55682965 JB |
6578 | }, |
6579 | { | |
6580 | .cmd = NL80211_CMD_SET_INTERFACE, | |
6581 | .doit = nl80211_set_interface, | |
6582 | .policy = nl80211_policy, | |
6583 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6584 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6585 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
6586 | }, |
6587 | { | |
6588 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
6589 | .doit = nl80211_new_interface, | |
6590 | .policy = nl80211_policy, | |
6591 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6592 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
6593 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
6594 | }, |
6595 | { | |
6596 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
6597 | .doit = nl80211_del_interface, | |
6598 | .policy = nl80211_policy, | |
41ade00f | 6599 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
6600 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6601 | NL80211_FLAG_NEED_RTNL, | |
41ade00f JB |
6602 | }, |
6603 | { | |
6604 | .cmd = NL80211_CMD_GET_KEY, | |
6605 | .doit = nl80211_get_key, | |
6606 | .policy = nl80211_policy, | |
6607 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 6608 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6609 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
6610 | }, |
6611 | { | |
6612 | .cmd = NL80211_CMD_SET_KEY, | |
6613 | .doit = nl80211_set_key, | |
6614 | .policy = nl80211_policy, | |
6615 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6616 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6617 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
6618 | }, |
6619 | { | |
6620 | .cmd = NL80211_CMD_NEW_KEY, | |
6621 | .doit = nl80211_new_key, | |
6622 | .policy = nl80211_policy, | |
6623 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6624 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6625 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
6626 | }, |
6627 | { | |
6628 | .cmd = NL80211_CMD_DEL_KEY, | |
6629 | .doit = nl80211_del_key, | |
6630 | .policy = nl80211_policy, | |
55682965 | 6631 | .flags = GENL_ADMIN_PERM, |
41265714 | 6632 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6633 | NL80211_FLAG_NEED_RTNL, |
55682965 | 6634 | }, |
ed1b6cc7 JB |
6635 | { |
6636 | .cmd = NL80211_CMD_SET_BEACON, | |
6637 | .policy = nl80211_policy, | |
6638 | .flags = GENL_ADMIN_PERM, | |
8860020e | 6639 | .doit = nl80211_set_beacon, |
2b5f8b0b | 6640 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6641 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
6642 | }, |
6643 | { | |
8860020e | 6644 | .cmd = NL80211_CMD_START_AP, |
ed1b6cc7 JB |
6645 | .policy = nl80211_policy, |
6646 | .flags = GENL_ADMIN_PERM, | |
8860020e | 6647 | .doit = nl80211_start_ap, |
2b5f8b0b | 6648 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6649 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
6650 | }, |
6651 | { | |
8860020e | 6652 | .cmd = NL80211_CMD_STOP_AP, |
ed1b6cc7 JB |
6653 | .policy = nl80211_policy, |
6654 | .flags = GENL_ADMIN_PERM, | |
8860020e | 6655 | .doit = nl80211_stop_ap, |
2b5f8b0b | 6656 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6657 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 | 6658 | }, |
5727ef1b JB |
6659 | { |
6660 | .cmd = NL80211_CMD_GET_STATION, | |
6661 | .doit = nl80211_get_station, | |
2ec600d6 | 6662 | .dumpit = nl80211_dump_station, |
5727ef1b | 6663 | .policy = nl80211_policy, |
4c476991 JB |
6664 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6665 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
6666 | }, |
6667 | { | |
6668 | .cmd = NL80211_CMD_SET_STATION, | |
6669 | .doit = nl80211_set_station, | |
6670 | .policy = nl80211_policy, | |
6671 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 6672 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6673 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
6674 | }, |
6675 | { | |
6676 | .cmd = NL80211_CMD_NEW_STATION, | |
6677 | .doit = nl80211_new_station, | |
6678 | .policy = nl80211_policy, | |
6679 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6680 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6681 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
6682 | }, |
6683 | { | |
6684 | .cmd = NL80211_CMD_DEL_STATION, | |
6685 | .doit = nl80211_del_station, | |
6686 | .policy = nl80211_policy, | |
2ec600d6 | 6687 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 6688 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6689 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
6690 | }, |
6691 | { | |
6692 | .cmd = NL80211_CMD_GET_MPATH, | |
6693 | .doit = nl80211_get_mpath, | |
6694 | .dumpit = nl80211_dump_mpath, | |
6695 | .policy = nl80211_policy, | |
6696 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6697 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6698 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
6699 | }, |
6700 | { | |
6701 | .cmd = NL80211_CMD_SET_MPATH, | |
6702 | .doit = nl80211_set_mpath, | |
6703 | .policy = nl80211_policy, | |
6704 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6705 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6706 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
6707 | }, |
6708 | { | |
6709 | .cmd = NL80211_CMD_NEW_MPATH, | |
6710 | .doit = nl80211_new_mpath, | |
6711 | .policy = nl80211_policy, | |
6712 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6713 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6714 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
6715 | }, |
6716 | { | |
6717 | .cmd = NL80211_CMD_DEL_MPATH, | |
6718 | .doit = nl80211_del_mpath, | |
6719 | .policy = nl80211_policy, | |
9f1ba906 | 6720 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 6721 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6722 | NL80211_FLAG_NEED_RTNL, |
9f1ba906 JM |
6723 | }, |
6724 | { | |
6725 | .cmd = NL80211_CMD_SET_BSS, | |
6726 | .doit = nl80211_set_bss, | |
6727 | .policy = nl80211_policy, | |
b2e1b302 | 6728 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 6729 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6730 | NL80211_FLAG_NEED_RTNL, |
b2e1b302 | 6731 | }, |
f130347c LR |
6732 | { |
6733 | .cmd = NL80211_CMD_GET_REG, | |
6734 | .doit = nl80211_get_reg, | |
6735 | .policy = nl80211_policy, | |
6736 | /* can be retrieved by unprivileged users */ | |
6737 | }, | |
b2e1b302 LR |
6738 | { |
6739 | .cmd = NL80211_CMD_SET_REG, | |
6740 | .doit = nl80211_set_reg, | |
6741 | .policy = nl80211_policy, | |
6742 | .flags = GENL_ADMIN_PERM, | |
6743 | }, | |
6744 | { | |
6745 | .cmd = NL80211_CMD_REQ_SET_REG, | |
6746 | .doit = nl80211_req_set_reg, | |
6747 | .policy = nl80211_policy, | |
93da9cc1 | 6748 | .flags = GENL_ADMIN_PERM, |
6749 | }, | |
6750 | { | |
24bdd9f4 JC |
6751 | .cmd = NL80211_CMD_GET_MESH_CONFIG, |
6752 | .doit = nl80211_get_mesh_config, | |
93da9cc1 | 6753 | .policy = nl80211_policy, |
6754 | /* can be retrieved by unprivileged users */ | |
2b5f8b0b | 6755 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6756 | NL80211_FLAG_NEED_RTNL, |
93da9cc1 | 6757 | }, |
6758 | { | |
24bdd9f4 JC |
6759 | .cmd = NL80211_CMD_SET_MESH_CONFIG, |
6760 | .doit = nl80211_update_mesh_config, | |
93da9cc1 | 6761 | .policy = nl80211_policy, |
9aed3cc1 | 6762 | .flags = GENL_ADMIN_PERM, |
29cbe68c | 6763 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6764 | NL80211_FLAG_NEED_RTNL, |
9aed3cc1 | 6765 | }, |
2a519311 JB |
6766 | { |
6767 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
6768 | .doit = nl80211_trigger_scan, | |
6769 | .policy = nl80211_policy, | |
6770 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6771 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6772 | NL80211_FLAG_NEED_RTNL, |
2a519311 JB |
6773 | }, |
6774 | { | |
6775 | .cmd = NL80211_CMD_GET_SCAN, | |
6776 | .policy = nl80211_policy, | |
6777 | .dumpit = nl80211_dump_scan, | |
6778 | }, | |
807f8a8c LC |
6779 | { |
6780 | .cmd = NL80211_CMD_START_SCHED_SCAN, | |
6781 | .doit = nl80211_start_sched_scan, | |
6782 | .policy = nl80211_policy, | |
6783 | .flags = GENL_ADMIN_PERM, | |
6784 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
6785 | NL80211_FLAG_NEED_RTNL, | |
6786 | }, | |
6787 | { | |
6788 | .cmd = NL80211_CMD_STOP_SCHED_SCAN, | |
6789 | .doit = nl80211_stop_sched_scan, | |
6790 | .policy = nl80211_policy, | |
6791 | .flags = GENL_ADMIN_PERM, | |
6792 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
6793 | NL80211_FLAG_NEED_RTNL, | |
6794 | }, | |
636a5d36 JM |
6795 | { |
6796 | .cmd = NL80211_CMD_AUTHENTICATE, | |
6797 | .doit = nl80211_authenticate, | |
6798 | .policy = nl80211_policy, | |
6799 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6800 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6801 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
6802 | }, |
6803 | { | |
6804 | .cmd = NL80211_CMD_ASSOCIATE, | |
6805 | .doit = nl80211_associate, | |
6806 | .policy = nl80211_policy, | |
6807 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6808 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6809 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
6810 | }, |
6811 | { | |
6812 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
6813 | .doit = nl80211_deauthenticate, | |
6814 | .policy = nl80211_policy, | |
6815 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6816 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6817 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
6818 | }, |
6819 | { | |
6820 | .cmd = NL80211_CMD_DISASSOCIATE, | |
6821 | .doit = nl80211_disassociate, | |
6822 | .policy = nl80211_policy, | |
6823 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6824 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6825 | NL80211_FLAG_NEED_RTNL, |
636a5d36 | 6826 | }, |
04a773ad JB |
6827 | { |
6828 | .cmd = NL80211_CMD_JOIN_IBSS, | |
6829 | .doit = nl80211_join_ibss, | |
6830 | .policy = nl80211_policy, | |
6831 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6832 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6833 | NL80211_FLAG_NEED_RTNL, |
04a773ad JB |
6834 | }, |
6835 | { | |
6836 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
6837 | .doit = nl80211_leave_ibss, | |
6838 | .policy = nl80211_policy, | |
6839 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6840 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6841 | NL80211_FLAG_NEED_RTNL, |
04a773ad | 6842 | }, |
aff89a9b JB |
6843 | #ifdef CONFIG_NL80211_TESTMODE |
6844 | { | |
6845 | .cmd = NL80211_CMD_TESTMODE, | |
6846 | .doit = nl80211_testmode_do, | |
71063f0e | 6847 | .dumpit = nl80211_testmode_dump, |
aff89a9b JB |
6848 | .policy = nl80211_policy, |
6849 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6850 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
6851 | NL80211_FLAG_NEED_RTNL, | |
aff89a9b JB |
6852 | }, |
6853 | #endif | |
b23aa676 SO |
6854 | { |
6855 | .cmd = NL80211_CMD_CONNECT, | |
6856 | .doit = nl80211_connect, | |
6857 | .policy = nl80211_policy, | |
6858 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6859 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6860 | NL80211_FLAG_NEED_RTNL, |
b23aa676 SO |
6861 | }, |
6862 | { | |
6863 | .cmd = NL80211_CMD_DISCONNECT, | |
6864 | .doit = nl80211_disconnect, | |
6865 | .policy = nl80211_policy, | |
6866 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6867 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6868 | NL80211_FLAG_NEED_RTNL, |
b23aa676 | 6869 | }, |
463d0183 JB |
6870 | { |
6871 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
6872 | .doit = nl80211_wiphy_netns, | |
6873 | .policy = nl80211_policy, | |
6874 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6875 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
6876 | NL80211_FLAG_NEED_RTNL, | |
463d0183 | 6877 | }, |
61fa713c HS |
6878 | { |
6879 | .cmd = NL80211_CMD_GET_SURVEY, | |
6880 | .policy = nl80211_policy, | |
6881 | .dumpit = nl80211_dump_survey, | |
6882 | }, | |
67fbb16b SO |
6883 | { |
6884 | .cmd = NL80211_CMD_SET_PMKSA, | |
6885 | .doit = nl80211_setdel_pmksa, | |
6886 | .policy = nl80211_policy, | |
6887 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 6888 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6889 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
6890 | }, |
6891 | { | |
6892 | .cmd = NL80211_CMD_DEL_PMKSA, | |
6893 | .doit = nl80211_setdel_pmksa, | |
6894 | .policy = nl80211_policy, | |
6895 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 6896 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6897 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
6898 | }, |
6899 | { | |
6900 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
6901 | .doit = nl80211_flush_pmksa, | |
6902 | .policy = nl80211_policy, | |
6903 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 6904 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6905 | NL80211_FLAG_NEED_RTNL, |
67fbb16b | 6906 | }, |
9588bbd5 JM |
6907 | { |
6908 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
6909 | .doit = nl80211_remain_on_channel, | |
6910 | .policy = nl80211_policy, | |
6911 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6912 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6913 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 JM |
6914 | }, |
6915 | { | |
6916 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
6917 | .doit = nl80211_cancel_remain_on_channel, | |
6918 | .policy = nl80211_policy, | |
6919 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6920 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6921 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 | 6922 | }, |
13ae75b1 JM |
6923 | { |
6924 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
6925 | .doit = nl80211_set_tx_bitrate_mask, | |
6926 | .policy = nl80211_policy, | |
6927 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6928 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6929 | NL80211_FLAG_NEED_RTNL, | |
13ae75b1 | 6930 | }, |
026331c4 | 6931 | { |
2e161f78 JB |
6932 | .cmd = NL80211_CMD_REGISTER_FRAME, |
6933 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
6934 | .policy = nl80211_policy, |
6935 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6936 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6937 | NL80211_FLAG_NEED_RTNL, | |
026331c4 JM |
6938 | }, |
6939 | { | |
2e161f78 JB |
6940 | .cmd = NL80211_CMD_FRAME, |
6941 | .doit = nl80211_tx_mgmt, | |
026331c4 | 6942 | .policy = nl80211_policy, |
f7ca38df JB |
6943 | .flags = GENL_ADMIN_PERM, |
6944 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
6945 | NL80211_FLAG_NEED_RTNL, | |
6946 | }, | |
6947 | { | |
6948 | .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, | |
6949 | .doit = nl80211_tx_mgmt_cancel_wait, | |
6950 | .policy = nl80211_policy, | |
026331c4 | 6951 | .flags = GENL_ADMIN_PERM, |
41265714 | 6952 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6953 | NL80211_FLAG_NEED_RTNL, |
026331c4 | 6954 | }, |
ffb9eb3d KV |
6955 | { |
6956 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
6957 | .doit = nl80211_set_power_save, | |
6958 | .policy = nl80211_policy, | |
6959 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6960 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6961 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d KV |
6962 | }, |
6963 | { | |
6964 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
6965 | .doit = nl80211_get_power_save, | |
6966 | .policy = nl80211_policy, | |
6967 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
6968 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6969 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d | 6970 | }, |
d6dc1a38 JO |
6971 | { |
6972 | .cmd = NL80211_CMD_SET_CQM, | |
6973 | .doit = nl80211_set_cqm, | |
6974 | .policy = nl80211_policy, | |
6975 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6976 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6977 | NL80211_FLAG_NEED_RTNL, | |
d6dc1a38 | 6978 | }, |
f444de05 JB |
6979 | { |
6980 | .cmd = NL80211_CMD_SET_CHANNEL, | |
6981 | .doit = nl80211_set_channel, | |
6982 | .policy = nl80211_policy, | |
6983 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6984 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6985 | NL80211_FLAG_NEED_RTNL, | |
f444de05 | 6986 | }, |
e8347eba BJ |
6987 | { |
6988 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
6989 | .doit = nl80211_set_wds_peer, | |
6990 | .policy = nl80211_policy, | |
6991 | .flags = GENL_ADMIN_PERM, | |
43b19952 JB |
6992 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6993 | NL80211_FLAG_NEED_RTNL, | |
e8347eba | 6994 | }, |
29cbe68c JB |
6995 | { |
6996 | .cmd = NL80211_CMD_JOIN_MESH, | |
6997 | .doit = nl80211_join_mesh, | |
6998 | .policy = nl80211_policy, | |
6999 | .flags = GENL_ADMIN_PERM, | |
7000 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7001 | NL80211_FLAG_NEED_RTNL, | |
7002 | }, | |
7003 | { | |
7004 | .cmd = NL80211_CMD_LEAVE_MESH, | |
7005 | .doit = nl80211_leave_mesh, | |
7006 | .policy = nl80211_policy, | |
7007 | .flags = GENL_ADMIN_PERM, | |
7008 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7009 | NL80211_FLAG_NEED_RTNL, | |
7010 | }, | |
ff1b6e69 JB |
7011 | { |
7012 | .cmd = NL80211_CMD_GET_WOWLAN, | |
7013 | .doit = nl80211_get_wowlan, | |
7014 | .policy = nl80211_policy, | |
7015 | /* can be retrieved by unprivileged users */ | |
7016 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7017 | NL80211_FLAG_NEED_RTNL, | |
7018 | }, | |
7019 | { | |
7020 | .cmd = NL80211_CMD_SET_WOWLAN, | |
7021 | .doit = nl80211_set_wowlan, | |
7022 | .policy = nl80211_policy, | |
7023 | .flags = GENL_ADMIN_PERM, | |
7024 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7025 | NL80211_FLAG_NEED_RTNL, | |
7026 | }, | |
e5497d76 JB |
7027 | { |
7028 | .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, | |
7029 | .doit = nl80211_set_rekey_data, | |
7030 | .policy = nl80211_policy, | |
7031 | .flags = GENL_ADMIN_PERM, | |
7032 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7033 | NL80211_FLAG_NEED_RTNL, | |
7034 | }, | |
109086ce AN |
7035 | { |
7036 | .cmd = NL80211_CMD_TDLS_MGMT, | |
7037 | .doit = nl80211_tdls_mgmt, | |
7038 | .policy = nl80211_policy, | |
7039 | .flags = GENL_ADMIN_PERM, | |
7040 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7041 | NL80211_FLAG_NEED_RTNL, | |
7042 | }, | |
7043 | { | |
7044 | .cmd = NL80211_CMD_TDLS_OPER, | |
7045 | .doit = nl80211_tdls_oper, | |
7046 | .policy = nl80211_policy, | |
7047 | .flags = GENL_ADMIN_PERM, | |
7048 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7049 | NL80211_FLAG_NEED_RTNL, | |
7050 | }, | |
28946da7 JB |
7051 | { |
7052 | .cmd = NL80211_CMD_UNEXPECTED_FRAME, | |
7053 | .doit = nl80211_register_unexpected_frame, | |
7054 | .policy = nl80211_policy, | |
7055 | .flags = GENL_ADMIN_PERM, | |
7056 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7057 | NL80211_FLAG_NEED_RTNL, | |
7058 | }, | |
7f6cf311 JB |
7059 | { |
7060 | .cmd = NL80211_CMD_PROBE_CLIENT, | |
7061 | .doit = nl80211_probe_client, | |
7062 | .policy = nl80211_policy, | |
7063 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7064 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
7f6cf311 JB |
7065 | NL80211_FLAG_NEED_RTNL, |
7066 | }, | |
5e760230 JB |
7067 | { |
7068 | .cmd = NL80211_CMD_REGISTER_BEACONS, | |
7069 | .doit = nl80211_register_beacons, | |
7070 | .policy = nl80211_policy, | |
7071 | .flags = GENL_ADMIN_PERM, | |
7072 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7073 | NL80211_FLAG_NEED_RTNL, | |
7074 | }, | |
1d9d9213 SW |
7075 | { |
7076 | .cmd = NL80211_CMD_SET_NOACK_MAP, | |
7077 | .doit = nl80211_set_noack_map, | |
7078 | .policy = nl80211_policy, | |
7079 | .flags = GENL_ADMIN_PERM, | |
7080 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7081 | NL80211_FLAG_NEED_RTNL, | |
7082 | }, | |
7083 | ||
55682965 | 7084 | }; |
9588bbd5 | 7085 | |
6039f6d2 JM |
7086 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
7087 | .name = "mlme", | |
7088 | }; | |
55682965 JB |
7089 | |
7090 | /* multicast groups */ | |
7091 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
7092 | .name = "config", | |
7093 | }; | |
2a519311 JB |
7094 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
7095 | .name = "scan", | |
7096 | }; | |
73d54c9e LR |
7097 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
7098 | .name = "regulatory", | |
7099 | }; | |
55682965 JB |
7100 | |
7101 | /* notification functions */ | |
7102 | ||
7103 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
7104 | { | |
7105 | struct sk_buff *msg; | |
7106 | ||
fd2120ca | 7107 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
7108 | if (!msg) |
7109 | return; | |
7110 | ||
7111 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
7112 | nlmsg_free(msg); | |
7113 | return; | |
7114 | } | |
7115 | ||
463d0183 JB |
7116 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7117 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
7118 | } |
7119 | ||
362a415d JB |
7120 | static int nl80211_add_scan_req(struct sk_buff *msg, |
7121 | struct cfg80211_registered_device *rdev) | |
7122 | { | |
7123 | struct cfg80211_scan_request *req = rdev->scan_req; | |
7124 | struct nlattr *nest; | |
7125 | int i; | |
7126 | ||
667503dd JB |
7127 | ASSERT_RDEV_LOCK(rdev); |
7128 | ||
362a415d JB |
7129 | if (WARN_ON(!req)) |
7130 | return 0; | |
7131 | ||
7132 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
7133 | if (!nest) | |
7134 | goto nla_put_failure; | |
9360ffd1 DM |
7135 | for (i = 0; i < req->n_ssids; i++) { |
7136 | if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid)) | |
7137 | goto nla_put_failure; | |
7138 | } | |
362a415d JB |
7139 | nla_nest_end(msg, nest); |
7140 | ||
7141 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
7142 | if (!nest) | |
7143 | goto nla_put_failure; | |
9360ffd1 DM |
7144 | for (i = 0; i < req->n_channels; i++) { |
7145 | if (nla_put_u32(msg, i, req->channels[i]->center_freq)) | |
7146 | goto nla_put_failure; | |
7147 | } | |
362a415d JB |
7148 | nla_nest_end(msg, nest); |
7149 | ||
9360ffd1 DM |
7150 | if (req->ie && |
7151 | nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie)) | |
7152 | goto nla_put_failure; | |
362a415d JB |
7153 | |
7154 | return 0; | |
7155 | nla_put_failure: | |
7156 | return -ENOBUFS; | |
7157 | } | |
7158 | ||
a538e2d5 JB |
7159 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
7160 | struct cfg80211_registered_device *rdev, | |
7161 | struct net_device *netdev, | |
7162 | u32 pid, u32 seq, int flags, | |
7163 | u32 cmd) | |
2a519311 JB |
7164 | { |
7165 | void *hdr; | |
7166 | ||
7167 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
7168 | if (!hdr) | |
7169 | return -1; | |
7170 | ||
9360ffd1 DM |
7171 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7172 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
7173 | goto nla_put_failure; | |
2a519311 | 7174 | |
362a415d JB |
7175 | /* ignore errors and send incomplete event anyway */ |
7176 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
7177 | |
7178 | return genlmsg_end(msg, hdr); | |
7179 | ||
7180 | nla_put_failure: | |
7181 | genlmsg_cancel(msg, hdr); | |
7182 | return -EMSGSIZE; | |
7183 | } | |
7184 | ||
807f8a8c LC |
7185 | static int |
7186 | nl80211_send_sched_scan_msg(struct sk_buff *msg, | |
7187 | struct cfg80211_registered_device *rdev, | |
7188 | struct net_device *netdev, | |
7189 | u32 pid, u32 seq, int flags, u32 cmd) | |
7190 | { | |
7191 | void *hdr; | |
7192 | ||
7193 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
7194 | if (!hdr) | |
7195 | return -1; | |
7196 | ||
9360ffd1 DM |
7197 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7198 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
7199 | goto nla_put_failure; | |
807f8a8c LC |
7200 | |
7201 | return genlmsg_end(msg, hdr); | |
7202 | ||
7203 | nla_put_failure: | |
7204 | genlmsg_cancel(msg, hdr); | |
7205 | return -EMSGSIZE; | |
7206 | } | |
7207 | ||
a538e2d5 JB |
7208 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
7209 | struct net_device *netdev) | |
7210 | { | |
7211 | struct sk_buff *msg; | |
7212 | ||
7213 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
7214 | if (!msg) | |
7215 | return; | |
7216 | ||
7217 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
7218 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
7219 | nlmsg_free(msg); | |
7220 | return; | |
7221 | } | |
7222 | ||
463d0183 JB |
7223 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7224 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
a538e2d5 JB |
7225 | } |
7226 | ||
2a519311 JB |
7227 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
7228 | struct net_device *netdev) | |
7229 | { | |
7230 | struct sk_buff *msg; | |
7231 | ||
fd2120ca | 7232 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
7233 | if (!msg) |
7234 | return; | |
7235 | ||
a538e2d5 JB |
7236 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
7237 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 JB |
7238 | nlmsg_free(msg); |
7239 | return; | |
7240 | } | |
7241 | ||
463d0183 JB |
7242 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7243 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
7244 | } |
7245 | ||
7246 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
7247 | struct net_device *netdev) | |
7248 | { | |
7249 | struct sk_buff *msg; | |
7250 | ||
fd2120ca | 7251 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
7252 | if (!msg) |
7253 | return; | |
7254 | ||
a538e2d5 JB |
7255 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
7256 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
7257 | nlmsg_free(msg); |
7258 | return; | |
7259 | } | |
7260 | ||
463d0183 JB |
7261 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7262 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
7263 | } |
7264 | ||
807f8a8c LC |
7265 | void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, |
7266 | struct net_device *netdev) | |
7267 | { | |
7268 | struct sk_buff *msg; | |
7269 | ||
7270 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7271 | if (!msg) | |
7272 | return; | |
7273 | ||
7274 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
7275 | NL80211_CMD_SCHED_SCAN_RESULTS) < 0) { | |
7276 | nlmsg_free(msg); | |
7277 | return; | |
7278 | } | |
7279 | ||
7280 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7281 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7282 | } | |
7283 | ||
7284 | void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, | |
7285 | struct net_device *netdev, u32 cmd) | |
7286 | { | |
7287 | struct sk_buff *msg; | |
7288 | ||
7289 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
7290 | if (!msg) | |
7291 | return; | |
7292 | ||
7293 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) { | |
7294 | nlmsg_free(msg); | |
7295 | return; | |
7296 | } | |
7297 | ||
7298 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7299 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7300 | } | |
7301 | ||
73d54c9e LR |
7302 | /* |
7303 | * This can happen on global regulatory changes or device specific settings | |
7304 | * based on custom world regulatory domains. | |
7305 | */ | |
7306 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
7307 | { | |
7308 | struct sk_buff *msg; | |
7309 | void *hdr; | |
7310 | ||
fd2120ca | 7311 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
7312 | if (!msg) |
7313 | return; | |
7314 | ||
7315 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
7316 | if (!hdr) { | |
7317 | nlmsg_free(msg); | |
7318 | return; | |
7319 | } | |
7320 | ||
7321 | /* Userspace can always count this one always being set */ | |
9360ffd1 DM |
7322 | if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator)) |
7323 | goto nla_put_failure; | |
7324 | ||
7325 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') { | |
7326 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7327 | NL80211_REGDOM_TYPE_WORLD)) | |
7328 | goto nla_put_failure; | |
7329 | } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') { | |
7330 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7331 | NL80211_REGDOM_TYPE_CUSTOM_WORLD)) | |
7332 | goto nla_put_failure; | |
7333 | } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
7334 | request->intersect) { | |
7335 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7336 | NL80211_REGDOM_TYPE_INTERSECTION)) | |
7337 | goto nla_put_failure; | |
7338 | } else { | |
7339 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7340 | NL80211_REGDOM_TYPE_COUNTRY) || | |
7341 | nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, | |
7342 | request->alpha2)) | |
7343 | goto nla_put_failure; | |
7344 | } | |
7345 | ||
7346 | if (wiphy_idx_valid(request->wiphy_idx) && | |
7347 | nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx)) | |
7348 | goto nla_put_failure; | |
73d54c9e | 7349 | |
3b7b72ee | 7350 | genlmsg_end(msg, hdr); |
73d54c9e | 7351 | |
bc43b28c | 7352 | rcu_read_lock(); |
463d0183 | 7353 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
7354 | GFP_ATOMIC); |
7355 | rcu_read_unlock(); | |
73d54c9e LR |
7356 | |
7357 | return; | |
7358 | ||
7359 | nla_put_failure: | |
7360 | genlmsg_cancel(msg, hdr); | |
7361 | nlmsg_free(msg); | |
7362 | } | |
7363 | ||
6039f6d2 JM |
7364 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
7365 | struct net_device *netdev, | |
7366 | const u8 *buf, size_t len, | |
e6d6e342 | 7367 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
7368 | { |
7369 | struct sk_buff *msg; | |
7370 | void *hdr; | |
7371 | ||
e6d6e342 | 7372 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
7373 | if (!msg) |
7374 | return; | |
7375 | ||
7376 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
7377 | if (!hdr) { | |
7378 | nlmsg_free(msg); | |
7379 | return; | |
7380 | } | |
7381 | ||
9360ffd1 DM |
7382 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7383 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7384 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
7385 | goto nla_put_failure; | |
6039f6d2 | 7386 | |
3b7b72ee | 7387 | genlmsg_end(msg, hdr); |
6039f6d2 | 7388 | |
463d0183 JB |
7389 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7390 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
7391 | return; |
7392 | ||
7393 | nla_put_failure: | |
7394 | genlmsg_cancel(msg, hdr); | |
7395 | nlmsg_free(msg); | |
7396 | } | |
7397 | ||
7398 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
7399 | struct net_device *netdev, const u8 *buf, |
7400 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
7401 | { |
7402 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 7403 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
7404 | } |
7405 | ||
7406 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
7407 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 7408 | size_t len, gfp_t gfp) |
6039f6d2 | 7409 | { |
e6d6e342 JB |
7410 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
7411 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
7412 | } |
7413 | ||
53b46b84 | 7414 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
7415 | struct net_device *netdev, const u8 *buf, |
7416 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
7417 | { |
7418 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 7419 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
7420 | } |
7421 | ||
53b46b84 JM |
7422 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
7423 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 7424 | size_t len, gfp_t gfp) |
6039f6d2 JM |
7425 | { |
7426 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 7427 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
7428 | } |
7429 | ||
cf4e594e JM |
7430 | void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev, |
7431 | struct net_device *netdev, const u8 *buf, | |
7432 | size_t len, gfp_t gfp) | |
7433 | { | |
7434 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7435 | NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp); | |
7436 | } | |
7437 | ||
7438 | void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev, | |
7439 | struct net_device *netdev, const u8 *buf, | |
7440 | size_t len, gfp_t gfp) | |
7441 | { | |
7442 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7443 | NL80211_CMD_UNPROT_DISASSOCIATE, gfp); | |
7444 | } | |
7445 | ||
1b06bb40 LR |
7446 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
7447 | struct net_device *netdev, int cmd, | |
e6d6e342 | 7448 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
7449 | { |
7450 | struct sk_buff *msg; | |
7451 | void *hdr; | |
7452 | ||
e6d6e342 | 7453 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
7454 | if (!msg) |
7455 | return; | |
7456 | ||
7457 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
7458 | if (!hdr) { | |
7459 | nlmsg_free(msg); | |
7460 | return; | |
7461 | } | |
7462 | ||
9360ffd1 DM |
7463 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7464 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7465 | nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) || | |
7466 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
7467 | goto nla_put_failure; | |
1965c853 | 7468 | |
3b7b72ee | 7469 | genlmsg_end(msg, hdr); |
1965c853 | 7470 | |
463d0183 JB |
7471 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7472 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
7473 | return; |
7474 | ||
7475 | nla_put_failure: | |
7476 | genlmsg_cancel(msg, hdr); | |
7477 | nlmsg_free(msg); | |
7478 | } | |
7479 | ||
7480 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
7481 | struct net_device *netdev, const u8 *addr, |
7482 | gfp_t gfp) | |
1965c853 JM |
7483 | { |
7484 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 7485 | addr, gfp); |
1965c853 JM |
7486 | } |
7487 | ||
7488 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
7489 | struct net_device *netdev, const u8 *addr, |
7490 | gfp_t gfp) | |
1965c853 | 7491 | { |
e6d6e342 JB |
7492 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
7493 | addr, gfp); | |
1965c853 JM |
7494 | } |
7495 | ||
b23aa676 SO |
7496 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
7497 | struct net_device *netdev, const u8 *bssid, | |
7498 | const u8 *req_ie, size_t req_ie_len, | |
7499 | const u8 *resp_ie, size_t resp_ie_len, | |
7500 | u16 status, gfp_t gfp) | |
7501 | { | |
7502 | struct sk_buff *msg; | |
7503 | void *hdr; | |
7504 | ||
7505 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7506 | if (!msg) | |
7507 | return; | |
7508 | ||
7509 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
7510 | if (!hdr) { | |
7511 | nlmsg_free(msg); | |
7512 | return; | |
7513 | } | |
7514 | ||
9360ffd1 DM |
7515 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7516 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7517 | (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) || | |
7518 | nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) || | |
7519 | (req_ie && | |
7520 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
7521 | (resp_ie && | |
7522 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
7523 | goto nla_put_failure; | |
b23aa676 | 7524 | |
3b7b72ee | 7525 | genlmsg_end(msg, hdr); |
b23aa676 | 7526 | |
463d0183 JB |
7527 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7528 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
7529 | return; |
7530 | ||
7531 | nla_put_failure: | |
7532 | genlmsg_cancel(msg, hdr); | |
7533 | nlmsg_free(msg); | |
7534 | ||
7535 | } | |
7536 | ||
7537 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
7538 | struct net_device *netdev, const u8 *bssid, | |
7539 | const u8 *req_ie, size_t req_ie_len, | |
7540 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
7541 | { | |
7542 | struct sk_buff *msg; | |
7543 | void *hdr; | |
7544 | ||
7545 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7546 | if (!msg) | |
7547 | return; | |
7548 | ||
7549 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
7550 | if (!hdr) { | |
7551 | nlmsg_free(msg); | |
7552 | return; | |
7553 | } | |
7554 | ||
9360ffd1 DM |
7555 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7556 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7557 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) || | |
7558 | (req_ie && | |
7559 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
7560 | (resp_ie && | |
7561 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
7562 | goto nla_put_failure; | |
b23aa676 | 7563 | |
3b7b72ee | 7564 | genlmsg_end(msg, hdr); |
b23aa676 | 7565 | |
463d0183 JB |
7566 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7567 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
7568 | return; |
7569 | ||
7570 | nla_put_failure: | |
7571 | genlmsg_cancel(msg, hdr); | |
7572 | nlmsg_free(msg); | |
7573 | ||
7574 | } | |
7575 | ||
7576 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
7577 | struct net_device *netdev, u16 reason, | |
667503dd | 7578 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
7579 | { |
7580 | struct sk_buff *msg; | |
7581 | void *hdr; | |
7582 | ||
667503dd | 7583 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
b23aa676 SO |
7584 | if (!msg) |
7585 | return; | |
7586 | ||
7587 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
7588 | if (!hdr) { | |
7589 | nlmsg_free(msg); | |
7590 | return; | |
7591 | } | |
7592 | ||
9360ffd1 DM |
7593 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7594 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7595 | (from_ap && reason && | |
7596 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) || | |
7597 | (from_ap && | |
7598 | nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) || | |
7599 | (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) | |
7600 | goto nla_put_failure; | |
b23aa676 | 7601 | |
3b7b72ee | 7602 | genlmsg_end(msg, hdr); |
b23aa676 | 7603 | |
463d0183 JB |
7604 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7605 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
7606 | return; |
7607 | ||
7608 | nla_put_failure: | |
7609 | genlmsg_cancel(msg, hdr); | |
7610 | nlmsg_free(msg); | |
7611 | ||
7612 | } | |
7613 | ||
04a773ad JB |
7614 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
7615 | struct net_device *netdev, const u8 *bssid, | |
7616 | gfp_t gfp) | |
7617 | { | |
7618 | struct sk_buff *msg; | |
7619 | void *hdr; | |
7620 | ||
fd2120ca | 7621 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
7622 | if (!msg) |
7623 | return; | |
7624 | ||
7625 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
7626 | if (!hdr) { | |
7627 | nlmsg_free(msg); | |
7628 | return; | |
7629 | } | |
7630 | ||
9360ffd1 DM |
7631 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7632 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7633 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
7634 | goto nla_put_failure; | |
04a773ad | 7635 | |
3b7b72ee | 7636 | genlmsg_end(msg, hdr); |
04a773ad | 7637 | |
463d0183 JB |
7638 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7639 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
7640 | return; |
7641 | ||
7642 | nla_put_failure: | |
7643 | genlmsg_cancel(msg, hdr); | |
7644 | nlmsg_free(msg); | |
7645 | } | |
7646 | ||
c93b5e71 JC |
7647 | void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev, |
7648 | struct net_device *netdev, | |
7649 | const u8 *macaddr, const u8* ie, u8 ie_len, | |
7650 | gfp_t gfp) | |
7651 | { | |
7652 | struct sk_buff *msg; | |
7653 | void *hdr; | |
7654 | ||
7655 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
7656 | if (!msg) | |
7657 | return; | |
7658 | ||
7659 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE); | |
7660 | if (!hdr) { | |
7661 | nlmsg_free(msg); | |
7662 | return; | |
7663 | } | |
7664 | ||
9360ffd1 DM |
7665 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7666 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7667 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) || | |
7668 | (ie_len && ie && | |
7669 | nla_put(msg, NL80211_ATTR_IE, ie_len , ie))) | |
7670 | goto nla_put_failure; | |
c93b5e71 | 7671 | |
3b7b72ee | 7672 | genlmsg_end(msg, hdr); |
c93b5e71 JC |
7673 | |
7674 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7675 | nl80211_mlme_mcgrp.id, gfp); | |
7676 | return; | |
7677 | ||
7678 | nla_put_failure: | |
7679 | genlmsg_cancel(msg, hdr); | |
7680 | nlmsg_free(msg); | |
7681 | } | |
7682 | ||
a3b8b056 JM |
7683 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
7684 | struct net_device *netdev, const u8 *addr, | |
7685 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 7686 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
7687 | { |
7688 | struct sk_buff *msg; | |
7689 | void *hdr; | |
7690 | ||
e6d6e342 | 7691 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
7692 | if (!msg) |
7693 | return; | |
7694 | ||
7695 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
7696 | if (!hdr) { | |
7697 | nlmsg_free(msg); | |
7698 | return; | |
7699 | } | |
7700 | ||
9360ffd1 DM |
7701 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7702 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7703 | (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || | |
7704 | nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) || | |
7705 | (key_id != -1 && | |
7706 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) || | |
7707 | (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc))) | |
7708 | goto nla_put_failure; | |
a3b8b056 | 7709 | |
3b7b72ee | 7710 | genlmsg_end(msg, hdr); |
a3b8b056 | 7711 | |
463d0183 JB |
7712 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7713 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
7714 | return; |
7715 | ||
7716 | nla_put_failure: | |
7717 | genlmsg_cancel(msg, hdr); | |
7718 | nlmsg_free(msg); | |
7719 | } | |
7720 | ||
6bad8766 LR |
7721 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
7722 | struct ieee80211_channel *channel_before, | |
7723 | struct ieee80211_channel *channel_after) | |
7724 | { | |
7725 | struct sk_buff *msg; | |
7726 | void *hdr; | |
7727 | struct nlattr *nl_freq; | |
7728 | ||
fd2120ca | 7729 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
7730 | if (!msg) |
7731 | return; | |
7732 | ||
7733 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
7734 | if (!hdr) { | |
7735 | nlmsg_free(msg); | |
7736 | return; | |
7737 | } | |
7738 | ||
7739 | /* | |
7740 | * Since we are applying the beacon hint to a wiphy we know its | |
7741 | * wiphy_idx is valid | |
7742 | */ | |
9360ffd1 DM |
7743 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) |
7744 | goto nla_put_failure; | |
6bad8766 LR |
7745 | |
7746 | /* Before */ | |
7747 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
7748 | if (!nl_freq) | |
7749 | goto nla_put_failure; | |
7750 | if (nl80211_msg_put_channel(msg, channel_before)) | |
7751 | goto nla_put_failure; | |
7752 | nla_nest_end(msg, nl_freq); | |
7753 | ||
7754 | /* After */ | |
7755 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
7756 | if (!nl_freq) | |
7757 | goto nla_put_failure; | |
7758 | if (nl80211_msg_put_channel(msg, channel_after)) | |
7759 | goto nla_put_failure; | |
7760 | nla_nest_end(msg, nl_freq); | |
7761 | ||
3b7b72ee | 7762 | genlmsg_end(msg, hdr); |
6bad8766 | 7763 | |
463d0183 JB |
7764 | rcu_read_lock(); |
7765 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
7766 | GFP_ATOMIC); | |
7767 | rcu_read_unlock(); | |
6bad8766 LR |
7768 | |
7769 | return; | |
7770 | ||
7771 | nla_put_failure: | |
7772 | genlmsg_cancel(msg, hdr); | |
7773 | nlmsg_free(msg); | |
7774 | } | |
7775 | ||
9588bbd5 JM |
7776 | static void nl80211_send_remain_on_chan_event( |
7777 | int cmd, struct cfg80211_registered_device *rdev, | |
7778 | struct net_device *netdev, u64 cookie, | |
7779 | struct ieee80211_channel *chan, | |
7780 | enum nl80211_channel_type channel_type, | |
7781 | unsigned int duration, gfp_t gfp) | |
7782 | { | |
7783 | struct sk_buff *msg; | |
7784 | void *hdr; | |
7785 | ||
7786 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
7787 | if (!msg) | |
7788 | return; | |
7789 | ||
7790 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
7791 | if (!hdr) { | |
7792 | nlmsg_free(msg); | |
7793 | return; | |
7794 | } | |
7795 | ||
9360ffd1 DM |
7796 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7797 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7798 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) || | |
7799 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) || | |
7800 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) | |
7801 | goto nla_put_failure; | |
9588bbd5 | 7802 | |
9360ffd1 DM |
7803 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL && |
7804 | nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) | |
7805 | goto nla_put_failure; | |
9588bbd5 | 7806 | |
3b7b72ee | 7807 | genlmsg_end(msg, hdr); |
9588bbd5 JM |
7808 | |
7809 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7810 | nl80211_mlme_mcgrp.id, gfp); | |
7811 | return; | |
7812 | ||
7813 | nla_put_failure: | |
7814 | genlmsg_cancel(msg, hdr); | |
7815 | nlmsg_free(msg); | |
7816 | } | |
7817 | ||
7818 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
7819 | struct net_device *netdev, u64 cookie, | |
7820 | struct ieee80211_channel *chan, | |
7821 | enum nl80211_channel_type channel_type, | |
7822 | unsigned int duration, gfp_t gfp) | |
7823 | { | |
7824 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
7825 | rdev, netdev, cookie, chan, | |
7826 | channel_type, duration, gfp); | |
7827 | } | |
7828 | ||
7829 | void nl80211_send_remain_on_channel_cancel( | |
7830 | struct cfg80211_registered_device *rdev, struct net_device *netdev, | |
7831 | u64 cookie, struct ieee80211_channel *chan, | |
7832 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
7833 | { | |
7834 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
7835 | rdev, netdev, cookie, chan, | |
7836 | channel_type, 0, gfp); | |
7837 | } | |
7838 | ||
98b62183 JB |
7839 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
7840 | struct net_device *dev, const u8 *mac_addr, | |
7841 | struct station_info *sinfo, gfp_t gfp) | |
7842 | { | |
7843 | struct sk_buff *msg; | |
7844 | ||
7845 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7846 | if (!msg) | |
7847 | return; | |
7848 | ||
66266b3a JL |
7849 | if (nl80211_send_station(msg, 0, 0, 0, |
7850 | rdev, dev, mac_addr, sinfo) < 0) { | |
98b62183 JB |
7851 | nlmsg_free(msg); |
7852 | return; | |
7853 | } | |
7854 | ||
7855 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7856 | nl80211_mlme_mcgrp.id, gfp); | |
7857 | } | |
7858 | ||
ec15e68b JM |
7859 | void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev, |
7860 | struct net_device *dev, const u8 *mac_addr, | |
7861 | gfp_t gfp) | |
7862 | { | |
7863 | struct sk_buff *msg; | |
7864 | void *hdr; | |
7865 | ||
7866 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7867 | if (!msg) | |
7868 | return; | |
7869 | ||
7870 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION); | |
7871 | if (!hdr) { | |
7872 | nlmsg_free(msg); | |
7873 | return; | |
7874 | } | |
7875 | ||
9360ffd1 DM |
7876 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
7877 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
7878 | goto nla_put_failure; | |
ec15e68b | 7879 | |
3b7b72ee | 7880 | genlmsg_end(msg, hdr); |
ec15e68b JM |
7881 | |
7882 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7883 | nl80211_mlme_mcgrp.id, gfp); | |
7884 | return; | |
7885 | ||
7886 | nla_put_failure: | |
7887 | genlmsg_cancel(msg, hdr); | |
7888 | nlmsg_free(msg); | |
7889 | } | |
7890 | ||
b92ab5d8 JB |
7891 | static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, |
7892 | const u8 *addr, gfp_t gfp) | |
28946da7 JB |
7893 | { |
7894 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
7895 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
7896 | struct sk_buff *msg; | |
7897 | void *hdr; | |
7898 | int err; | |
7899 | u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid); | |
7900 | ||
7901 | if (!nlpid) | |
7902 | return false; | |
7903 | ||
7904 | msg = nlmsg_new(100, gfp); | |
7905 | if (!msg) | |
7906 | return true; | |
7907 | ||
b92ab5d8 | 7908 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
28946da7 JB |
7909 | if (!hdr) { |
7910 | nlmsg_free(msg); | |
7911 | return true; | |
7912 | } | |
7913 | ||
9360ffd1 DM |
7914 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7915 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
7916 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
7917 | goto nla_put_failure; | |
28946da7 JB |
7918 | |
7919 | err = genlmsg_end(msg, hdr); | |
7920 | if (err < 0) { | |
7921 | nlmsg_free(msg); | |
7922 | return true; | |
7923 | } | |
7924 | ||
7925 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); | |
7926 | return true; | |
7927 | ||
7928 | nla_put_failure: | |
7929 | genlmsg_cancel(msg, hdr); | |
7930 | nlmsg_free(msg); | |
7931 | return true; | |
7932 | } | |
7933 | ||
b92ab5d8 JB |
7934 | bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp) |
7935 | { | |
7936 | return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME, | |
7937 | addr, gfp); | |
7938 | } | |
7939 | ||
7940 | bool nl80211_unexpected_4addr_frame(struct net_device *dev, | |
7941 | const u8 *addr, gfp_t gfp) | |
7942 | { | |
7943 | return __nl80211_unexpected_frame(dev, | |
7944 | NL80211_CMD_UNEXPECTED_4ADDR_FRAME, | |
7945 | addr, gfp); | |
7946 | } | |
7947 | ||
2e161f78 JB |
7948 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
7949 | struct net_device *netdev, u32 nlpid, | |
804483e9 JB |
7950 | int freq, int sig_dbm, |
7951 | const u8 *buf, size_t len, gfp_t gfp) | |
026331c4 JM |
7952 | { |
7953 | struct sk_buff *msg; | |
7954 | void *hdr; | |
026331c4 JM |
7955 | |
7956 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
7957 | if (!msg) | |
7958 | return -ENOMEM; | |
7959 | ||
2e161f78 | 7960 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
7961 | if (!hdr) { |
7962 | nlmsg_free(msg); | |
7963 | return -ENOMEM; | |
7964 | } | |
7965 | ||
9360ffd1 DM |
7966 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7967 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7968 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || | |
7969 | (sig_dbm && | |
7970 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
7971 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
7972 | goto nla_put_failure; | |
026331c4 | 7973 | |
3b7b72ee | 7974 | genlmsg_end(msg, hdr); |
026331c4 | 7975 | |
3b7b72ee | 7976 | return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); |
026331c4 JM |
7977 | |
7978 | nla_put_failure: | |
7979 | genlmsg_cancel(msg, hdr); | |
7980 | nlmsg_free(msg); | |
7981 | return -ENOBUFS; | |
7982 | } | |
7983 | ||
2e161f78 JB |
7984 | void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, |
7985 | struct net_device *netdev, u64 cookie, | |
7986 | const u8 *buf, size_t len, bool ack, | |
7987 | gfp_t gfp) | |
026331c4 JM |
7988 | { |
7989 | struct sk_buff *msg; | |
7990 | void *hdr; | |
7991 | ||
7992 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
7993 | if (!msg) | |
7994 | return; | |
7995 | ||
2e161f78 | 7996 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
7997 | if (!hdr) { |
7998 | nlmsg_free(msg); | |
7999 | return; | |
8000 | } | |
8001 | ||
9360ffd1 DM |
8002 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8003 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8004 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || | |
8005 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
8006 | (ack && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
8007 | goto nla_put_failure; | |
026331c4 | 8008 | |
3b7b72ee | 8009 | genlmsg_end(msg, hdr); |
026331c4 JM |
8010 | |
8011 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
8012 | return; | |
8013 | ||
8014 | nla_put_failure: | |
8015 | genlmsg_cancel(msg, hdr); | |
8016 | nlmsg_free(msg); | |
8017 | } | |
8018 | ||
d6dc1a38 JO |
8019 | void |
8020 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
8021 | struct net_device *netdev, | |
8022 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
8023 | gfp_t gfp) | |
8024 | { | |
8025 | struct sk_buff *msg; | |
8026 | struct nlattr *pinfoattr; | |
8027 | void *hdr; | |
8028 | ||
8029 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
8030 | if (!msg) | |
8031 | return; | |
8032 | ||
8033 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
8034 | if (!hdr) { | |
8035 | nlmsg_free(msg); | |
8036 | return; | |
8037 | } | |
8038 | ||
9360ffd1 DM |
8039 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8040 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
8041 | goto nla_put_failure; | |
d6dc1a38 JO |
8042 | |
8043 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
8044 | if (!pinfoattr) | |
8045 | goto nla_put_failure; | |
8046 | ||
9360ffd1 DM |
8047 | if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, |
8048 | rssi_event)) | |
8049 | goto nla_put_failure; | |
d6dc1a38 JO |
8050 | |
8051 | nla_nest_end(msg, pinfoattr); | |
8052 | ||
3b7b72ee | 8053 | genlmsg_end(msg, hdr); |
d6dc1a38 JO |
8054 | |
8055 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8056 | nl80211_mlme_mcgrp.id, gfp); | |
8057 | return; | |
8058 | ||
8059 | nla_put_failure: | |
8060 | genlmsg_cancel(msg, hdr); | |
8061 | nlmsg_free(msg); | |
8062 | } | |
8063 | ||
e5497d76 JB |
8064 | void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, |
8065 | struct net_device *netdev, const u8 *bssid, | |
8066 | const u8 *replay_ctr, gfp_t gfp) | |
8067 | { | |
8068 | struct sk_buff *msg; | |
8069 | struct nlattr *rekey_attr; | |
8070 | void *hdr; | |
8071 | ||
8072 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
8073 | if (!msg) | |
8074 | return; | |
8075 | ||
8076 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); | |
8077 | if (!hdr) { | |
8078 | nlmsg_free(msg); | |
8079 | return; | |
8080 | } | |
8081 | ||
9360ffd1 DM |
8082 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8083 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8084 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
8085 | goto nla_put_failure; | |
e5497d76 JB |
8086 | |
8087 | rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); | |
8088 | if (!rekey_attr) | |
8089 | goto nla_put_failure; | |
8090 | ||
9360ffd1 DM |
8091 | if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, |
8092 | NL80211_REPLAY_CTR_LEN, replay_ctr)) | |
8093 | goto nla_put_failure; | |
e5497d76 JB |
8094 | |
8095 | nla_nest_end(msg, rekey_attr); | |
8096 | ||
3b7b72ee | 8097 | genlmsg_end(msg, hdr); |
e5497d76 JB |
8098 | |
8099 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8100 | nl80211_mlme_mcgrp.id, gfp); | |
8101 | return; | |
8102 | ||
8103 | nla_put_failure: | |
8104 | genlmsg_cancel(msg, hdr); | |
8105 | nlmsg_free(msg); | |
8106 | } | |
8107 | ||
c9df56b4 JM |
8108 | void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev, |
8109 | struct net_device *netdev, int index, | |
8110 | const u8 *bssid, bool preauth, gfp_t gfp) | |
8111 | { | |
8112 | struct sk_buff *msg; | |
8113 | struct nlattr *attr; | |
8114 | void *hdr; | |
8115 | ||
8116 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
8117 | if (!msg) | |
8118 | return; | |
8119 | ||
8120 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE); | |
8121 | if (!hdr) { | |
8122 | nlmsg_free(msg); | |
8123 | return; | |
8124 | } | |
8125 | ||
9360ffd1 DM |
8126 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8127 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
8128 | goto nla_put_failure; | |
c9df56b4 JM |
8129 | |
8130 | attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE); | |
8131 | if (!attr) | |
8132 | goto nla_put_failure; | |
8133 | ||
9360ffd1 DM |
8134 | if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) || |
8135 | nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) || | |
8136 | (preauth && | |
8137 | nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH))) | |
8138 | goto nla_put_failure; | |
c9df56b4 JM |
8139 | |
8140 | nla_nest_end(msg, attr); | |
8141 | ||
3b7b72ee | 8142 | genlmsg_end(msg, hdr); |
c9df56b4 JM |
8143 | |
8144 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8145 | nl80211_mlme_mcgrp.id, gfp); | |
8146 | return; | |
8147 | ||
8148 | nla_put_failure: | |
8149 | genlmsg_cancel(msg, hdr); | |
8150 | nlmsg_free(msg); | |
8151 | } | |
8152 | ||
5314526b TP |
8153 | void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, |
8154 | struct net_device *netdev, int freq, | |
8155 | enum nl80211_channel_type type, gfp_t gfp) | |
8156 | { | |
8157 | struct sk_buff *msg; | |
8158 | void *hdr; | |
8159 | ||
8160 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
8161 | if (!msg) | |
8162 | return; | |
8163 | ||
8164 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY); | |
8165 | if (!hdr) { | |
8166 | nlmsg_free(msg); | |
8167 | return; | |
8168 | } | |
8169 | ||
7eab0f64 JL |
8170 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
8171 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || | |
8172 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type)) | |
8173 | goto nla_put_failure; | |
5314526b TP |
8174 | |
8175 | genlmsg_end(msg, hdr); | |
8176 | ||
8177 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8178 | nl80211_mlme_mcgrp.id, gfp); | |
8179 | return; | |
8180 | ||
8181 | nla_put_failure: | |
8182 | genlmsg_cancel(msg, hdr); | |
8183 | nlmsg_free(msg); | |
8184 | } | |
8185 | ||
c063dbf5 JB |
8186 | void |
8187 | nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev, | |
8188 | struct net_device *netdev, const u8 *peer, | |
8189 | u32 num_packets, gfp_t gfp) | |
8190 | { | |
8191 | struct sk_buff *msg; | |
8192 | struct nlattr *pinfoattr; | |
8193 | void *hdr; | |
8194 | ||
8195 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
8196 | if (!msg) | |
8197 | return; | |
8198 | ||
8199 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
8200 | if (!hdr) { | |
8201 | nlmsg_free(msg); | |
8202 | return; | |
8203 | } | |
8204 | ||
9360ffd1 DM |
8205 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8206 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8207 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) | |
8208 | goto nla_put_failure; | |
c063dbf5 JB |
8209 | |
8210 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
8211 | if (!pinfoattr) | |
8212 | goto nla_put_failure; | |
8213 | ||
9360ffd1 DM |
8214 | if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) |
8215 | goto nla_put_failure; | |
c063dbf5 JB |
8216 | |
8217 | nla_nest_end(msg, pinfoattr); | |
8218 | ||
3b7b72ee | 8219 | genlmsg_end(msg, hdr); |
c063dbf5 JB |
8220 | |
8221 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8222 | nl80211_mlme_mcgrp.id, gfp); | |
8223 | return; | |
8224 | ||
8225 | nla_put_failure: | |
8226 | genlmsg_cancel(msg, hdr); | |
8227 | nlmsg_free(msg); | |
8228 | } | |
8229 | ||
7f6cf311 JB |
8230 | void cfg80211_probe_status(struct net_device *dev, const u8 *addr, |
8231 | u64 cookie, bool acked, gfp_t gfp) | |
8232 | { | |
8233 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8234 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
8235 | struct sk_buff *msg; | |
8236 | void *hdr; | |
8237 | int err; | |
8238 | ||
8239 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
8240 | if (!msg) | |
8241 | return; | |
8242 | ||
8243 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT); | |
8244 | if (!hdr) { | |
8245 | nlmsg_free(msg); | |
8246 | return; | |
8247 | } | |
8248 | ||
9360ffd1 DM |
8249 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8250 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
8251 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
8252 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
8253 | (acked && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
8254 | goto nla_put_failure; | |
7f6cf311 JB |
8255 | |
8256 | err = genlmsg_end(msg, hdr); | |
8257 | if (err < 0) { | |
8258 | nlmsg_free(msg); | |
8259 | return; | |
8260 | } | |
8261 | ||
8262 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8263 | nl80211_mlme_mcgrp.id, gfp); | |
8264 | return; | |
8265 | ||
8266 | nla_put_failure: | |
8267 | genlmsg_cancel(msg, hdr); | |
8268 | nlmsg_free(msg); | |
8269 | } | |
8270 | EXPORT_SYMBOL(cfg80211_probe_status); | |
8271 | ||
5e760230 JB |
8272 | void cfg80211_report_obss_beacon(struct wiphy *wiphy, |
8273 | const u8 *frame, size_t len, | |
804483e9 | 8274 | int freq, int sig_dbm, gfp_t gfp) |
5e760230 JB |
8275 | { |
8276 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
8277 | struct sk_buff *msg; | |
8278 | void *hdr; | |
8279 | u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid); | |
8280 | ||
8281 | if (!nlpid) | |
8282 | return; | |
8283 | ||
8284 | msg = nlmsg_new(len + 100, gfp); | |
8285 | if (!msg) | |
8286 | return; | |
8287 | ||
8288 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); | |
8289 | if (!hdr) { | |
8290 | nlmsg_free(msg); | |
8291 | return; | |
8292 | } | |
8293 | ||
9360ffd1 DM |
8294 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8295 | (freq && | |
8296 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) || | |
8297 | (sig_dbm && | |
8298 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
8299 | nla_put(msg, NL80211_ATTR_FRAME, len, frame)) | |
8300 | goto nla_put_failure; | |
5e760230 JB |
8301 | |
8302 | genlmsg_end(msg, hdr); | |
8303 | ||
8304 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); | |
8305 | return; | |
8306 | ||
8307 | nla_put_failure: | |
8308 | genlmsg_cancel(msg, hdr); | |
8309 | nlmsg_free(msg); | |
8310 | } | |
8311 | EXPORT_SYMBOL(cfg80211_report_obss_beacon); | |
8312 | ||
026331c4 JM |
8313 | static int nl80211_netlink_notify(struct notifier_block * nb, |
8314 | unsigned long state, | |
8315 | void *_notify) | |
8316 | { | |
8317 | struct netlink_notify *notify = _notify; | |
8318 | struct cfg80211_registered_device *rdev; | |
8319 | struct wireless_dev *wdev; | |
8320 | ||
8321 | if (state != NETLINK_URELEASE) | |
8322 | return NOTIFY_DONE; | |
8323 | ||
8324 | rcu_read_lock(); | |
8325 | ||
5e760230 | 8326 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { |
026331c4 | 8327 | list_for_each_entry_rcu(wdev, &rdev->netdev_list, list) |
2e161f78 | 8328 | cfg80211_mlme_unregister_socket(wdev, notify->pid); |
5e760230 JB |
8329 | if (rdev->ap_beacons_nlpid == notify->pid) |
8330 | rdev->ap_beacons_nlpid = 0; | |
8331 | } | |
026331c4 JM |
8332 | |
8333 | rcu_read_unlock(); | |
8334 | ||
8335 | return NOTIFY_DONE; | |
8336 | } | |
8337 | ||
8338 | static struct notifier_block nl80211_netlink_notifier = { | |
8339 | .notifier_call = nl80211_netlink_notify, | |
8340 | }; | |
8341 | ||
55682965 JB |
8342 | /* initialisation/exit functions */ |
8343 | ||
8344 | int nl80211_init(void) | |
8345 | { | |
0d63cbb5 | 8346 | int err; |
55682965 | 8347 | |
0d63cbb5 MM |
8348 | err = genl_register_family_with_ops(&nl80211_fam, |
8349 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
8350 | if (err) |
8351 | return err; | |
8352 | ||
55682965 JB |
8353 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
8354 | if (err) | |
8355 | goto err_out; | |
8356 | ||
2a519311 JB |
8357 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
8358 | if (err) | |
8359 | goto err_out; | |
8360 | ||
73d54c9e LR |
8361 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
8362 | if (err) | |
8363 | goto err_out; | |
8364 | ||
6039f6d2 JM |
8365 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
8366 | if (err) | |
8367 | goto err_out; | |
8368 | ||
aff89a9b JB |
8369 | #ifdef CONFIG_NL80211_TESTMODE |
8370 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
8371 | if (err) | |
8372 | goto err_out; | |
8373 | #endif | |
8374 | ||
026331c4 JM |
8375 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
8376 | if (err) | |
8377 | goto err_out; | |
8378 | ||
55682965 JB |
8379 | return 0; |
8380 | err_out: | |
8381 | genl_unregister_family(&nl80211_fam); | |
8382 | return err; | |
8383 | } | |
8384 | ||
8385 | void nl80211_exit(void) | |
8386 | { | |
026331c4 | 8387 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
8388 | genl_unregister_family(&nl80211_fam); |
8389 | } |