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regulatory: remove reg_mutex
[deliverable/linux.git] / net / wireless / nl80211.c
CommitLineData
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>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
4c476991
JB		 33static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
fb4e1568
MH		 40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
55682965 44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
89a54e48
JB		 50/* returns ERR_PTR values */
51static struct wireless_dev *
52__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 53{
89a54e48
JB		 54 struct cfg80211_registered_device *rdev;
55 struct wireless_dev *result = NULL;
56 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
57 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
58 u64 wdev_id;
59 int wiphy_idx = -1;
60 int ifidx = -1;
55682965 61
5fe231e8 62 ASSERT_RTNL();
55682965 63
89a54e48
JB		 64 if (!have_ifidx && !have_wdev_id)
65 return ERR_PTR(-EINVAL);
55682965 66
89a54e48
JB		 67 if (have_ifidx)
68 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
69 if (have_wdev_id) {
70 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
71 wiphy_idx = wdev_id >> 32;
55682965
JB		 72 }
73
89a54e48
JB		 74 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
75 struct wireless_dev *wdev;
76
77 if (wiphy_net(&rdev->wiphy) != netns)
78 continue;
79
80 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
81 continue;
82
89a54e48
JB		 83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
86 result = wdev;
87 break;
88 }
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
90 result = wdev;
91 break;
92 }
93 }
89a54e48
JB		 94
95 if (result)
96 break;
97 }
98
99 if (result)
100 return result;
101 return ERR_PTR(-ENODEV);
55682965
JB		 102}
103
a9455408 104static struct cfg80211_registered_device *
878d9ec7 105__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 106{
7fee4778
JB		 107 struct cfg80211_registered_device *rdev = NULL, *tmp;
108 struct net_device *netdev;
a9455408 109
5fe231e8 110 ASSERT_RTNL();
a9455408 111
878d9ec7 112 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 113 !attrs[NL80211_ATTR_IFINDEX] &&
114 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 115 return ERR_PTR(-EINVAL);
116
878d9ec7 117 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 118 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 119 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 120
89a54e48
JB		 121 if (attrs[NL80211_ATTR_WDEV]) {
122 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
123 struct wireless_dev *wdev;
124 bool found = false;
125
126 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
127 if (tmp) {
128 /* make sure wdev exists */
89a54e48
JB		 129 list_for_each_entry(wdev, &tmp->wdev_list, list) {
130 if (wdev->identifier != (u32)wdev_id)
131 continue;
132 found = true;
133 break;
134 }
89a54e48
JB		 135
136 if (!found)
137 tmp = NULL;
138
139 if (rdev && tmp != rdev)
140 return ERR_PTR(-EINVAL);
141 rdev = tmp;
142 }
143 }
144
878d9ec7
JB		 145 if (attrs[NL80211_ATTR_IFINDEX]) {
146 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 147 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 148 if (netdev) {
149 if (netdev->ieee80211_ptr)
150 tmp = wiphy_to_dev(
151 netdev->ieee80211_ptr->wiphy);
152 else
153 tmp = NULL;
154
155 dev_put(netdev);
156
157 /* not wireless device -- return error */
158 if (!tmp)
159 return ERR_PTR(-EINVAL);
160
161 /* mismatch -- return error */
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164
165 rdev = tmp;
a9455408 166 }
a9455408 167 }
a9455408 168
4f7eff10
JB		 169 if (!rdev)
170 return ERR_PTR(-ENODEV);
a9455408 171
4f7eff10
JB		 172 if (netns != wiphy_net(&rdev->wiphy))
173 return ERR_PTR(-ENODEV);
174
175 return rdev;
a9455408
JB		 176}
177
178/*
179 * This function returns a pointer to the driver
180 * that the genl_info item that is passed refers to.
a9455408
JB		 181 *
182 * The result of this can be a PTR_ERR and hence must
183 * be checked with IS_ERR() for errors.
184 */
185static struct cfg80211_registered_device *
4f7eff10 186cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 187{
5fe231e8 188 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 189}
190
55682965 191/* policy for the attributes */
b54452b0 192static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 193 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
194 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 195 .len = 20-1 },
31888487 196 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 197
72bdcf34 198 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 199 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 200 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
201 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
202 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
203
b9a5f8ca
JM		 204 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
205 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
206 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
207 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 208 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 209
210 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
211 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
212 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 213
e007b857
EP		 214 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
215 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 216
b9454e83 217 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 218 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
219 .len = WLAN_MAX_KEY_LEN },
220 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
221 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
222 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 223 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 224 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 225
226 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
227 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
228 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
229 .len = IEEE80211_MAX_DATA_LEN },
230 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
231 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 232 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
233 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
234 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
235 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
236 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 237 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 238 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 239 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 240 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 241 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 242 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 243
b2e1b302
LR		 244 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
245 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
246
9f1ba906
JM		 247 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
248 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
249 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 250 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
251 .len = NL80211_MAX_SUPP_RATES },
50b12f59 252 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 253
24bdd9f4 254 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 255 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 256
6c739419 257 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 258
259 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
260 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
261 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 262 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
263 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 264
265 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
266 .len = IEEE80211_MAX_SSID_LEN },
267 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
268 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 269 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 270 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 271 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 272 [NL80211_ATTR_STA_FLAGS2] = {
273 .len = sizeof(struct nl80211_sta_flag_update),
274 },
3f77316c 275 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 276 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
277 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 278 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
279 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
280 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 281 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 282 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 283 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
284 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 285 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
286 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 287 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 288 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_DATA_LEN },
290 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 291 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 292 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 293 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 294 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 295 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
296 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 297 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 298 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
299 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 300 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 301 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 302 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 303 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 304 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 305 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 306 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 307 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 308 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 309 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 313 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 314 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 315 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 316 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
317 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
318 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
319 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
320 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 321 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 322 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 324 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 325 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
326 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
327 .len = NL80211_HT_CAPABILITY_LEN
328 },
1d9d9213 329 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 330 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 331 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 332 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 333 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 334 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 335 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 336 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 337 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
338 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 339 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
340 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 341 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
342 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 343 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 344 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
346 .len = NL80211_VHT_CAPABILITY_LEN,
347 },
355199e0
JM		 348 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
349 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
350 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 351 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
55682965
JB		 352};
353
e31b8213 354/* policy for the key attributes */
b54452b0 355static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 356 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 357 [NL80211_KEY_IDX] = { .type = NLA_U8 },
358 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 359 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 360 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
361 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 362 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 363 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
364};
365
366/* policy for the key default flags */
367static const struct nla_policy
368nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
369 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
370 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 371};
372
ff1b6e69
JB		 373/* policy for WoWLAN attributes */
374static const struct nla_policy
375nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
376 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
377 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
378 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
379 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 380 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
381 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
382 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
383 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 384 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
385};
386
387static const struct nla_policy
388nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
389 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
390 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
391 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
392 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
393 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
394 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
395 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
396 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
397 },
398 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
399 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
400 },
401 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
402 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
403 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 404};
405
e5497d76
JB		 406/* policy for GTK rekey offload attributes */
407static const struct nla_policy
408nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
409 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
410 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
411 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
412};
413
a1f1c21c
LC		 414static const struct nla_policy
415nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 416 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 417 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 418 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 419};
420
97990a06
JB		 421static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
422 struct netlink_callback *cb,
423 struct cfg80211_registered_device **rdev,
424 struct wireless_dev **wdev)
a043897a 425{
97990a06 426 int err;
a043897a 427
97990a06 428 rtnl_lock();
a043897a 429
97990a06
JB		 430 if (!cb->args[0]) {
431 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
432 nl80211_fam.attrbuf, nl80211_fam.maxattr,
433 nl80211_policy);
434 if (err)
435 goto out_unlock;
67748893 436
97990a06
JB		 437 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
438 nl80211_fam.attrbuf);
439 if (IS_ERR(*wdev)) {
440 err = PTR_ERR(*wdev);
441 goto out_unlock;
442 }
443 *rdev = wiphy_to_dev((*wdev)->wiphy);
444 cb->args[0] = (*rdev)->wiphy_idx;
445 cb->args[1] = (*wdev)->identifier;
446 } else {
447 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0]);
448 struct wireless_dev *tmp;
67748893 449
97990a06
JB		 450 if (!wiphy) {
451 err = -ENODEV;
452 goto out_unlock;
453 }
454 *rdev = wiphy_to_dev(wiphy);
455 *wdev = NULL;
67748893 456
97990a06
JB		 457 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
458 if (tmp->identifier == cb->args[1]) {
459 *wdev = tmp;
460 break;
461 }
462 }
67748893 463
97990a06
JB		 464 if (!*wdev) {
465 err = -ENODEV;
466 goto out_unlock;
467 }
67748893
JB		 468 }
469
67748893 470 return 0;
97990a06 471 out_unlock:
67748893
JB		 472 rtnl_unlock();
473 return err;
474}
475
97990a06 476static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 477{
67748893
JB		 478 rtnl_unlock();
479}
480
f4a11bb0
JB		 481/* IE validation */
482static bool is_valid_ie_attr(const struct nlattr *attr)
483{
484 const u8 *pos;
485 int len;
486
487 if (!attr)
488 return true;
489
490 pos = nla_data(attr);
491 len = nla_len(attr);
492
493 while (len) {
494 u8 elemlen;
495
496 if (len < 2)
497 return false;
498 len -= 2;
499
500 elemlen = pos[1];
501 if (elemlen > len)
502 return false;
503
504 len -= elemlen;
505 pos += 2 + elemlen;
506 }
507
508 return true;
509}
510
55682965 511/* message building helper */
15e47304 512static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 513 int flags, u8 cmd)
514{
515 /* since there is no private header just add the generic one */
15e47304 516 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 517}
518
5dab3b8a 519static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 520 struct ieee80211_channel *chan,
521 bool large)
5dab3b8a 522{
9360ffd1
DM		 523 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
524 chan->center_freq))
525 goto nla_put_failure;
5dab3b8a 526
9360ffd1
DM		 527 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
528 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
529 goto nla_put_failure;
530 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
531 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
532 goto nla_put_failure;
533 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
534 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
535 goto nla_put_failure;
cdc89b97
JB		 536 if (chan->flags & IEEE80211_CHAN_RADAR) {
537 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
538 goto nla_put_failure;
539 if (large) {
540 u32 time;
541
542 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
543
544 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
545 chan->dfs_state))
546 goto nla_put_failure;
547 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
548 time))
549 goto nla_put_failure;
550 }
551 }
5dab3b8a 552
fe1abafd
JB		 553 if (large) {
554 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
555 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
556 goto nla_put_failure;
557 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
558 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
559 goto nla_put_failure;
560 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
561 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
562 goto nla_put_failure;
563 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
564 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
565 goto nla_put_failure;
566 }
567
9360ffd1
DM		 568 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
569 DBM_TO_MBM(chan->max_power)))
570 goto nla_put_failure;
5dab3b8a
LR		 571
572 return 0;
573
574 nla_put_failure:
575 return -ENOBUFS;
576}
577
55682965
JB		 578/* netlink command implementations */
579
b9454e83
JB		 580struct key_parse {
581 struct key_params p;
582 int idx;
e31b8213 583 int type;
b9454e83 584 bool def, defmgmt;
dbd2fd65 585 bool def_uni, def_multi;
b9454e83
JB		 586};
587
588static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
589{
590 struct nlattr *tb[NL80211_KEY_MAX + 1];
591 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
592 nl80211_key_policy);
593 if (err)
594 return err;
595
596 k->def = !!tb[NL80211_KEY_DEFAULT];
597 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
598
dbd2fd65
JB		 599 if (k->def) {
600 k->def_uni = true;
601 k->def_multi = true;
602 }
603 if (k->defmgmt)
604 k->def_multi = true;
605
b9454e83
JB		 606 if (tb[NL80211_KEY_IDX])
607 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
608
609 if (tb[NL80211_KEY_DATA]) {
610 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
611 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
612 }
613
614 if (tb[NL80211_KEY_SEQ]) {
615 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
616 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
617 }
618
619 if (tb[NL80211_KEY_CIPHER])
620 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
621
e31b8213
JB		 622 if (tb[NL80211_KEY_TYPE]) {
623 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
624 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
625 return -EINVAL;
626 }
627
dbd2fd65
JB		 628 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
629 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 630 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
631 tb[NL80211_KEY_DEFAULT_TYPES],
632 nl80211_key_default_policy);
dbd2fd65
JB		 633 if (err)
634 return err;
635
636 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
637 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
638 }
639
b9454e83
JB		 640 return 0;
641}
642
643static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
644{
645 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
646 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
647 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
648 }
649
650 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
651 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
652 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
653 }
654
655 if (info->attrs[NL80211_ATTR_KEY_IDX])
656 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
657
658 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
659 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
660
661 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
662 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
663
dbd2fd65
JB		 664 if (k->def) {
665 k->def_uni = true;
666 k->def_multi = true;
667 }
668 if (k->defmgmt)
669 k->def_multi = true;
670
e31b8213
JB		 671 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
672 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
673 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
674 return -EINVAL;
675 }
676
dbd2fd65
JB		 677 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
678 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
679 int err = nla_parse_nested(
680 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
681 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
682 nl80211_key_default_policy);
683 if (err)
684 return err;
685
686 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
687 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
688 }
689
b9454e83
JB		 690 return 0;
691}
692
693static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
694{
695 int err;
696
697 memset(k, 0, sizeof(*k));
698 k->idx = -1;
e31b8213 699 k->type = -1;
b9454e83
JB		 700
701 if (info->attrs[NL80211_ATTR_KEY])
702 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
703 else
704 err = nl80211_parse_key_old(info, k);
705
706 if (err)
707 return err;
708
709 if (k->def && k->defmgmt)
710 return -EINVAL;
711
dbd2fd65
JB		 712 if (k->defmgmt) {
713 if (k->def_uni || !k->def_multi)
714 return -EINVAL;
715 }
716
b9454e83
JB		 717 if (k->idx != -1) {
718 if (k->defmgmt) {
719 if (k->idx < 4 || k->idx > 5)
720 return -EINVAL;
721 } else if (k->def) {
722 if (k->idx < 0 || k->idx > 3)
723 return -EINVAL;
724 } else {
725 if (k->idx < 0 || k->idx > 5)
726 return -EINVAL;
727 }
728 }
729
730 return 0;
731}
732
fffd0934
JB		 733static struct cfg80211_cached_keys *
734nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 735 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 736{
737 struct key_parse parse;
738 struct nlattr *key;
739 struct cfg80211_cached_keys *result;
740 int rem, err, def = 0;
741
742 result = kzalloc(sizeof(*result), GFP_KERNEL);
743 if (!result)
744 return ERR_PTR(-ENOMEM);
745
746 result->def = -1;
747 result->defmgmt = -1;
748
749 nla_for_each_nested(key, keys, rem) {
750 memset(&parse, 0, sizeof(parse));
751 parse.idx = -1;
752
753 err = nl80211_parse_key_new(key, &parse);
754 if (err)
755 goto error;
756 err = -EINVAL;
757 if (!parse.p.key)
758 goto error;
759 if (parse.idx < 0 || parse.idx > 4)
760 goto error;
761 if (parse.def) {
762 if (def)
763 goto error;
764 def = 1;
765 result->def = parse.idx;
dbd2fd65
JB		 766 if (!parse.def_uni || !parse.def_multi)
767 goto error;
fffd0934
JB		 768 } else if (parse.defmgmt)
769 goto error;
770 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 771 parse.idx, false, NULL);
fffd0934
JB		 772 if (err)
773 goto error;
774 result->params[parse.idx].cipher = parse.p.cipher;
775 result->params[parse.idx].key_len = parse.p.key_len;
776 result->params[parse.idx].key = result->data[parse.idx];
777 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 778
779 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
780 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
781 if (no_ht)
782 *no_ht = true;
783 }
fffd0934
JB		 784 }
785
786 return result;
787 error:
788 kfree(result);
789 return ERR_PTR(err);
790}
791
792static int nl80211_key_allowed(struct wireless_dev *wdev)
793{
794 ASSERT_WDEV_LOCK(wdev);
795
fffd0934
JB		 796 switch (wdev->iftype) {
797 case NL80211_IFTYPE_AP:
798 case NL80211_IFTYPE_AP_VLAN:
074ac8df 799 case NL80211_IFTYPE_P2P_GO:
ff973af7 800 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 801 break;
802 case NL80211_IFTYPE_ADHOC:
803 if (!wdev->current_bss)
804 return -ENOLINK;
805 break;
806 case NL80211_IFTYPE_STATION:
074ac8df 807 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 808 if (wdev->sme_state != CFG80211_SME_CONNECTED)
809 return -ENOLINK;
810 break;
811 default:
812 return -EINVAL;
813 }
814
815 return 0;
816}
817
7527a782
JB		 818static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
819{
820 struct nlattr *nl_modes = nla_nest_start(msg, attr);
821 int i;
822
823 if (!nl_modes)
824 goto nla_put_failure;
825
826 i = 0;
827 while (ifmodes) {
9360ffd1
DM		 828 if ((ifmodes & 1) && nla_put_flag(msg, i))
829 goto nla_put_failure;
7527a782
JB		 830 ifmodes >>= 1;
831 i++;
832 }
833
834 nla_nest_end(msg, nl_modes);
835 return 0;
836
837nla_put_failure:
838 return -ENOBUFS;
839}
840
841static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 842 struct sk_buff *msg,
843 bool large)
7527a782
JB		 844{
845 struct nlattr *nl_combis;
846 int i, j;
847
848 nl_combis = nla_nest_start(msg,
849 NL80211_ATTR_INTERFACE_COMBINATIONS);
850 if (!nl_combis)
851 goto nla_put_failure;
852
853 for (i = 0; i < wiphy->n_iface_combinations; i++) {
854 const struct ieee80211_iface_combination *c;
855 struct nlattr *nl_combi, *nl_limits;
856
857 c = &wiphy->iface_combinations[i];
858
859 nl_combi = nla_nest_start(msg, i + 1);
860 if (!nl_combi)
861 goto nla_put_failure;
862
863 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
864 if (!nl_limits)
865 goto nla_put_failure;
866
867 for (j = 0; j < c->n_limits; j++) {
868 struct nlattr *nl_limit;
869
870 nl_limit = nla_nest_start(msg, j + 1);
871 if (!nl_limit)
872 goto nla_put_failure;
9360ffd1
DM		 873 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
874 c->limits[j].max))
875 goto nla_put_failure;
7527a782
JB		 876 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
877 c->limits[j].types))
878 goto nla_put_failure;
879 nla_nest_end(msg, nl_limit);
880 }
881
882 nla_nest_end(msg, nl_limits);
883
9360ffd1
DM		 884 if (c->beacon_int_infra_match &&
885 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
886 goto nla_put_failure;
887 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
888 c->num_different_channels) ||
889 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
890 c->max_interfaces))
891 goto nla_put_failure;
cdc89b97
JB		 892 if (large &&
893 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
894 c->radar_detect_widths))
895 goto nla_put_failure;
7527a782
JB		 896
897 nla_nest_end(msg, nl_combi);
898 }
899
900 nla_nest_end(msg, nl_combis);
901
902 return 0;
903nla_put_failure:
904 return -ENOBUFS;
905}
906
3713b4e3 907#ifdef CONFIG_PM
b56cf720
JB		 908static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
909 struct sk_buff *msg)
910{
911 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
912 struct nlattr *nl_tcp;
913
914 if (!tcp)
915 return 0;
916
917 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
918 if (!nl_tcp)
919 return -ENOBUFS;
920
921 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
922 tcp->data_payload_max))
923 return -ENOBUFS;
924
925 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
926 tcp->data_payload_max))
927 return -ENOBUFS;
928
929 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
930 return -ENOBUFS;
931
932 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
933 sizeof(*tcp->tok), tcp->tok))
934 return -ENOBUFS;
935
936 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
937 tcp->data_interval_max))
938 return -ENOBUFS;
939
940 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
941 tcp->wake_payload_max))
942 return -ENOBUFS;
943
944 nla_nest_end(msg, nl_tcp);
945 return 0;
946}
947
3713b4e3 948static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 949 struct cfg80211_registered_device *dev,
950 bool large)
55682965 951{
3713b4e3 952 struct nlattr *nl_wowlan;
55682965 953
3713b4e3
JB		 954 if (!dev->wiphy.wowlan.flags && !dev->wiphy.wowlan.n_patterns)
955 return 0;
55682965 956
3713b4e3
JB		 957 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
958 if (!nl_wowlan)
959 return -ENOBUFS;
9360ffd1 960
3713b4e3
JB		 961 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
962 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
963 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
964 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
965 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
966 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
967 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
968 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
969 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
970 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
971 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
972 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
973 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
974 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
975 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
976 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
977 return -ENOBUFS;
9360ffd1 978
3713b4e3
JB		 979 if (dev->wiphy.wowlan.n_patterns) {
980 struct nl80211_wowlan_pattern_support pat = {
981 .max_patterns = dev->wiphy.wowlan.n_patterns,
982 .min_pattern_len = dev->wiphy.wowlan.pattern_min_len,
983 .max_pattern_len = dev->wiphy.wowlan.pattern_max_len,
984 .max_pkt_offset = dev->wiphy.wowlan.max_pkt_offset,
985 };
9360ffd1 986
3713b4e3
JB		 987 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
988 sizeof(pat), &pat))
989 return -ENOBUFS;
990 }
9360ffd1 991
b56cf720
JB		 992 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
993 return -ENOBUFS;
994
3713b4e3 995 nla_nest_end(msg, nl_wowlan);
9360ffd1 996
3713b4e3
JB		 997 return 0;
998}
999#endif
9360ffd1 1000
3713b4e3
JB		 1001static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1002 struct ieee80211_supported_band *sband)
1003{
1004 struct nlattr *nl_rates, *nl_rate;
1005 struct ieee80211_rate *rate;
1006 int i;
87bbbe22 1007
3713b4e3
JB		 1008 /* add HT info */
1009 if (sband->ht_cap.ht_supported &&
1010 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1011 sizeof(sband->ht_cap.mcs),
1012 &sband->ht_cap.mcs) ||
1013 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1014 sband->ht_cap.cap) ||
1015 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1016 sband->ht_cap.ampdu_factor) ||
1017 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1018 sband->ht_cap.ampdu_density)))
1019 return -ENOBUFS;
afe0cbf8 1020
3713b4e3
JB		 1021 /* add VHT info */
1022 if (sband->vht_cap.vht_supported &&
1023 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1024 sizeof(sband->vht_cap.vht_mcs),
1025 &sband->vht_cap.vht_mcs) ||
1026 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1027 sband->vht_cap.cap)))
1028 return -ENOBUFS;
f59ac048 1029
3713b4e3
JB		 1030 /* add bitrates */
1031 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1032 if (!nl_rates)
1033 return -ENOBUFS;
ee688b00 1034
3713b4e3
JB		 1035 for (i = 0; i < sband->n_bitrates; i++) {
1036 nl_rate = nla_nest_start(msg, i);
1037 if (!nl_rate)
1038 return -ENOBUFS;
ee688b00 1039
3713b4e3
JB		 1040 rate = &sband->bitrates[i];
1041 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1042 rate->bitrate))
1043 return -ENOBUFS;
1044 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1045 nla_put_flag(msg,
1046 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1047 return -ENOBUFS;
ee688b00 1048
3713b4e3
JB		 1049 nla_nest_end(msg, nl_rate);
1050 }
d51626df 1051
3713b4e3 1052 nla_nest_end(msg, nl_rates);
bf0c111e 1053
3713b4e3
JB		 1054 return 0;
1055}
ee688b00 1056
3713b4e3
JB		 1057static int
1058nl80211_send_mgmt_stypes(struct sk_buff *msg,
1059 const struct ieee80211_txrx_stypes *mgmt_stypes)
1060{
1061 u16 stypes;
1062 struct nlattr *nl_ftypes, *nl_ifs;
1063 enum nl80211_iftype ift;
1064 int i;
ee688b00 1065
3713b4e3
JB		 1066 if (!mgmt_stypes)
1067 return 0;
5dab3b8a 1068
3713b4e3
JB		 1069 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1070 if (!nl_ifs)
1071 return -ENOBUFS;
e2f367f2 1072
3713b4e3
JB		 1073 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1074 nl_ftypes = nla_nest_start(msg, ift);
1075 if (!nl_ftypes)
1076 return -ENOBUFS;
1077 i = 0;
1078 stypes = mgmt_stypes[ift].tx;
1079 while (stypes) {
1080 if ((stypes & 1) &&
1081 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1082 (i << 4) | IEEE80211_FTYPE_MGMT))
1083 return -ENOBUFS;
1084 stypes >>= 1;
1085 i++;
ee688b00 1086 }
3713b4e3
JB		 1087 nla_nest_end(msg, nl_ftypes);
1088 }
ee688b00 1089
3713b4e3 1090 nla_nest_end(msg, nl_ifs);
ee688b00 1091
3713b4e3
JB		 1092 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1093 if (!nl_ifs)
1094 return -ENOBUFS;
ee688b00 1095
3713b4e3
JB		 1096 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1097 nl_ftypes = nla_nest_start(msg, ift);
1098 if (!nl_ftypes)
1099 return -ENOBUFS;
1100 i = 0;
1101 stypes = mgmt_stypes[ift].rx;
1102 while (stypes) {
1103 if ((stypes & 1) &&
1104 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1105 (i << 4) | IEEE80211_FTYPE_MGMT))
1106 return -ENOBUFS;
1107 stypes >>= 1;
1108 i++;
1109 }
1110 nla_nest_end(msg, nl_ftypes);
1111 }
1112 nla_nest_end(msg, nl_ifs);
ee688b00 1113
3713b4e3
JB		 1114 return 0;
1115}
ee688b00 1116
3713b4e3
JB		 1117static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1118 struct sk_buff *msg, u32 portid, u32 seq,
1119 int flags, bool split, long *split_start,
1120 long *band_start, long *chan_start)
1121{
1122 void *hdr;
1123 struct nlattr *nl_bands, *nl_band;
1124 struct nlattr *nl_freqs, *nl_freq;
1125 struct nlattr *nl_cmds;
1126 enum ieee80211_band band;
1127 struct ieee80211_channel *chan;
1128 int i;
1129 const struct ieee80211_txrx_stypes *mgmt_stypes =
1130 dev->wiphy.mgmt_stypes;
1131 long start = 0, start_chan = 0, start_band = 0;
fe1abafd 1132 u32 features;
ee688b00 1133
3713b4e3
JB		 1134 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1135 if (!hdr)
1136 return -ENOBUFS;
ee688b00 1137
3713b4e3
JB		 1138 /* allow always using the variables */
1139 if (!split) {
1140 split_start = &start;
1141 band_start = &start_band;
1142 chan_start = &start_chan;
ee688b00 1143 }
ee688b00 1144
3713b4e3
JB		 1145 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1146 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1147 wiphy_name(&dev->wiphy)) ||
1148 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1149 cfg80211_rdev_list_generation))
8fdc621d
JB		 1150 goto nla_put_failure;
1151
3713b4e3
JB		 1152 switch (*split_start) {
1153 case 0:
1154 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1155 dev->wiphy.retry_short) ||
1156 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1157 dev->wiphy.retry_long) ||
1158 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1159 dev->wiphy.frag_threshold) ||
1160 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1161 dev->wiphy.rts_threshold) ||
1162 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1163 dev->wiphy.coverage_class) ||
1164 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1165 dev->wiphy.max_scan_ssids) ||
1166 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1167 dev->wiphy.max_sched_scan_ssids) ||
1168 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1169 dev->wiphy.max_scan_ie_len) ||
1170 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1171 dev->wiphy.max_sched_scan_ie_len) ||
1172 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1173 dev->wiphy.max_match_sets))
9360ffd1 1174 goto nla_put_failure;
3713b4e3
JB		 1175
1176 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1177 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1178 goto nla_put_failure;
3713b4e3
JB		 1179 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1180 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1181 goto nla_put_failure;
1182 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1183 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1184 goto nla_put_failure;
1185 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1186 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1187 goto nla_put_failure;
1188 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1189 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1190 goto nla_put_failure;
1191 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1192 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1193 goto nla_put_failure;
8fdc621d 1194
3713b4e3
JB		 1195 (*split_start)++;
1196 if (split)
1197 break;
1198 case 1:
1199 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1200 sizeof(u32) * dev->wiphy.n_cipher_suites,
1201 dev->wiphy.cipher_suites))
1202 goto nla_put_failure;
4745fc09 1203
3713b4e3
JB		 1204 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1205 dev->wiphy.max_num_pmkids))
1206 goto nla_put_failure;
b23aa676 1207
3713b4e3
JB		 1208 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1209 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1210 goto nla_put_failure;
b23aa676 1211
3713b4e3
JB		 1212 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1213 dev->wiphy.available_antennas_tx) ||
1214 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1215 dev->wiphy.available_antennas_rx))
9360ffd1 1216 goto nla_put_failure;
b23aa676 1217
3713b4e3
JB		 1218 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1219 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1220 dev->wiphy.probe_resp_offload))
1221 goto nla_put_failure;
8fdc621d 1222
3713b4e3
JB		 1223 if ((dev->wiphy.available_antennas_tx ||
1224 dev->wiphy.available_antennas_rx) &&
1225 dev->ops->get_antenna) {
1226 u32 tx_ant = 0, rx_ant = 0;
1227 int res;
1228 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1229 if (!res) {
1230 if (nla_put_u32(msg,
1231 NL80211_ATTR_WIPHY_ANTENNA_TX,
1232 tx_ant) ||
1233 nla_put_u32(msg,
1234 NL80211_ATTR_WIPHY_ANTENNA_RX,
1235 rx_ant))
1236 goto nla_put_failure;
1237 }
1238 }
a293911d 1239
3713b4e3
JB		 1240 (*split_start)++;
1241 if (split)
1242 break;
1243 case 2:
1244 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1245 dev->wiphy.interface_modes))
1246 goto nla_put_failure;
1247 (*split_start)++;
1248 if (split)
1249 break;
1250 case 3:
1251 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1252 if (!nl_bands)
1253 goto nla_put_failure;
f7ca38df 1254
3713b4e3
JB		 1255 for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
1256 struct ieee80211_supported_band *sband;
2e161f78 1257
3713b4e3 1258 sband = dev->wiphy.bands[band];
2e161f78 1259
3713b4e3
JB		 1260 if (!sband)
1261 continue;
1262
1263 nl_band = nla_nest_start(msg, band);
1264 if (!nl_band)
2e161f78 1265 goto nla_put_failure;
3713b4e3
JB		 1266
1267 switch (*chan_start) {
1268 case 0:
1269 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1270 goto nla_put_failure;
3713b4e3
JB		 1271 (*chan_start)++;
1272 if (split)
1273 break;
1274 default:
1275 /* add frequencies */
1276 nl_freqs = nla_nest_start(
1277 msg, NL80211_BAND_ATTR_FREQS);
1278 if (!nl_freqs)
1279 goto nla_put_failure;
1280
1281 for (i = *chan_start - 1;
1282 i < sband->n_channels;
1283 i++) {
1284 nl_freq = nla_nest_start(msg, i);
1285 if (!nl_freq)
1286 goto nla_put_failure;
1287
1288 chan = &sband->channels[i];
1289
cdc89b97
JB		 1290 if (nl80211_msg_put_channel(msg, chan,
1291 split))
3713b4e3
JB		 1292 goto nla_put_failure;
1293
1294 nla_nest_end(msg, nl_freq);
1295 if (split)
1296 break;
1297 }
1298 if (i < sband->n_channels)
1299 *chan_start = i + 2;
1300 else
1301 *chan_start = 0;
1302 nla_nest_end(msg, nl_freqs);
1303 }
1304
1305 nla_nest_end(msg, nl_band);
1306
1307 if (split) {
1308 /* start again here */
1309 if (*chan_start)
1310 band--;
1311 break;
2e161f78 1312 }
2e161f78 1313 }
3713b4e3 1314 nla_nest_end(msg, nl_bands);
2e161f78 1315
3713b4e3
JB		 1316 if (band < IEEE80211_NUM_BANDS)
1317 *band_start = band + 1;
1318 else
1319 *band_start = 0;
74b70a4e 1320
3713b4e3
JB		 1321 /* if bands & channels are done, continue outside */
1322 if (*band_start == 0 && *chan_start == 0)
1323 (*split_start)++;
1324 if (split)
1325 break;
1326 case 4:
1327 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1328 if (!nl_cmds)
2e161f78
JB		 1329 goto nla_put_failure;
1330
3713b4e3
JB		 1331 i = 0;
1332#define CMD(op, n) \
1333 do { \
1334 if (dev->ops->op) { \
1335 i++; \
1336 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1337 goto nla_put_failure; \
1338 } \
1339 } while (0)
1340
1341 CMD(add_virtual_intf, NEW_INTERFACE);
1342 CMD(change_virtual_intf, SET_INTERFACE);
1343 CMD(add_key, NEW_KEY);
1344 CMD(start_ap, START_AP);
1345 CMD(add_station, NEW_STATION);
1346 CMD(add_mpath, NEW_MPATH);
1347 CMD(update_mesh_config, SET_MESH_CONFIG);
1348 CMD(change_bss, SET_BSS);
1349 CMD(auth, AUTHENTICATE);
1350 CMD(assoc, ASSOCIATE);
1351 CMD(deauth, DEAUTHENTICATE);
1352 CMD(disassoc, DISASSOCIATE);
1353 CMD(join_ibss, JOIN_IBSS);
1354 CMD(join_mesh, JOIN_MESH);
1355 CMD(set_pmksa, SET_PMKSA);
1356 CMD(del_pmksa, DEL_PMKSA);
1357 CMD(flush_pmksa, FLUSH_PMKSA);
1358 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1359 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1360 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1361 CMD(mgmt_tx, FRAME);
1362 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1363 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1364 i++;
1365 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1366 goto nla_put_failure;
2e161f78 1367 }
3713b4e3
JB		 1368 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1369 dev->ops->join_mesh) {
1370 i++;
1371 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1372 goto nla_put_failure;
1373 }
1374 CMD(set_wds_peer, SET_WDS_PEER);
1375 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1376 CMD(tdls_mgmt, TDLS_MGMT);
1377 CMD(tdls_oper, TDLS_OPER);
1378 }
1379 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1380 CMD(sched_scan_start, START_SCHED_SCAN);
1381 CMD(probe_client, PROBE_CLIENT);
1382 CMD(set_noack_map, SET_NOACK_MAP);
1383 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1384 i++;
1385 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1386 goto nla_put_failure;
1387 }
1388 CMD(start_p2p_device, START_P2P_DEVICE);
1389 CMD(set_mcast_rate, SET_MCAST_RATE);
5de17984
AS		 1390 if (split) {
1391 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1392 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1393 }
2e161f78 1394
3713b4e3
JB		 1395#ifdef CONFIG_NL80211_TESTMODE
1396 CMD(testmode_cmd, TESTMODE);
1397#endif
ff1b6e69 1398
3713b4e3 1399#undef CMD
ff1b6e69 1400
3713b4e3
JB		 1401 if (dev->ops->connect || dev->ops->auth) {
1402 i++;
1403 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1404 goto nla_put_failure;
ff1b6e69
JB		 1405 }
1406
3713b4e3
JB		 1407 if (dev->ops->disconnect || dev->ops->deauth) {
1408 i++;
1409 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1410 goto nla_put_failure;
1411 }
1412
1413 nla_nest_end(msg, nl_cmds);
1414 (*split_start)++;
1415 if (split)
1416 break;
1417 case 5:
1418 if (dev->ops->remain_on_channel &&
1419 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1420 nla_put_u32(msg,
1421 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1422 dev->wiphy.max_remain_on_channel_duration))
1423 goto nla_put_failure;
1424
1425 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1426 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1427 goto nla_put_failure;
1428
1429 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1430 goto nla_put_failure;
1431 (*split_start)++;
1432 if (split)
1433 break;
1434 case 6:
1435#ifdef CONFIG_PM
b56cf720 1436 if (nl80211_send_wowlan(msg, dev, split))
3713b4e3
JB		 1437 goto nla_put_failure;
1438 (*split_start)++;
1439 if (split)
1440 break;
1441#else
1442 (*split_start)++;
dfb89c56 1443#endif
3713b4e3
JB		 1444 case 7:
1445 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1446 dev->wiphy.software_iftypes))
1447 goto nla_put_failure;
ff1b6e69 1448
cdc89b97 1449 if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
3713b4e3 1450 goto nla_put_failure;
7527a782 1451
3713b4e3
JB		 1452 (*split_start)++;
1453 if (split)
1454 break;
1455 case 8:
1456 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1457 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1458 dev->wiphy.ap_sme_capa))
1459 goto nla_put_failure;
7527a782 1460
fe1abafd
JB		 1461 features = dev->wiphy.features;
1462 /*
1463 * We can only add the per-channel limit information if the
1464 * dump is split, otherwise it makes it too big. Therefore
1465 * only advertise it in that case.
1466 */
1467 if (split)
1468 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1469 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1470 goto nla_put_failure;
562a7480 1471
3713b4e3
JB		 1472 if (dev->wiphy.ht_capa_mod_mask &&
1473 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1474 sizeof(*dev->wiphy.ht_capa_mod_mask),
1475 dev->wiphy.ht_capa_mod_mask))
1476 goto nla_put_failure;
1f074bd8 1477
3713b4e3
JB		 1478 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1479 dev->wiphy.max_acl_mac_addrs &&
1480 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1481 dev->wiphy.max_acl_mac_addrs))
1482 goto nla_put_failure;
7e7c8926 1483
3713b4e3
JB		 1484 /*
1485 * Any information below this point is only available to
1486 * applications that can deal with it being split. This
1487 * helps ensure that newly added capabilities don't break
1488 * older tools by overrunning their buffers.
1489 *
1490 * We still increment split_start so that in the split
1491 * case we'll continue with more data in the next round,
1492 * but break unconditionally so unsplit data stops here.
1493 */
1494 (*split_start)++;
1495 break;
1496 case 9:
fe1abafd
JB		 1497 if (dev->wiphy.extended_capabilities &&
1498 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1499 dev->wiphy.extended_capabilities_len,
1500 dev->wiphy.extended_capabilities) ||
1501 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1502 dev->wiphy.extended_capabilities_len,
1503 dev->wiphy.extended_capabilities_mask)))
1504 goto nla_put_failure;
a50df0c4 1505
ee2aca34
JB		 1506 if (dev->wiphy.vht_capa_mod_mask &&
1507 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1508 sizeof(*dev->wiphy.vht_capa_mod_mask),
1509 dev->wiphy.vht_capa_mod_mask))
1510 goto nla_put_failure;
1511
3713b4e3
JB		 1512 /* done */
1513 *split_start = 0;
1514 break;
1515 }
55682965
JB		 1516 return genlmsg_end(msg, hdr);
1517
1518 nla_put_failure:
bc3ed28c
TG		 1519 genlmsg_cancel(msg, hdr);
1520 return -EMSGSIZE;
55682965
JB		 1521}
1522
1523static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1524{
645e77de 1525 int idx = 0, ret;
55682965
JB		 1526 int start = cb->args[0];
1527 struct cfg80211_registered_device *dev;
3713b4e3
JB		 1528 s64 filter_wiphy = -1;
1529 bool split = false;
1530 struct nlattr **tb = nl80211_fam.attrbuf;
1531 int res;
55682965 1532
5fe231e8 1533 rtnl_lock();
3713b4e3
JB		 1534 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1535 tb, nl80211_fam.maxattr, nl80211_policy);
1536 if (res == 0) {
1537 split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1538 if (tb[NL80211_ATTR_WIPHY])
1539 filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1540 if (tb[NL80211_ATTR_WDEV])
1541 filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1542 if (tb[NL80211_ATTR_IFINDEX]) {
1543 struct net_device *netdev;
1544 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1545
1546 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
5fe231e8 1547 if (!netdev)
3713b4e3 1548 return -ENODEV;
3713b4e3
JB		 1549 if (netdev->ieee80211_ptr) {
1550 dev = wiphy_to_dev(
1551 netdev->ieee80211_ptr->wiphy);
1552 filter_wiphy = dev->wiphy_idx;
1553 }
1554 dev_put(netdev);
1555 }
1556 }
1557
79c97e97 1558 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1559 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1560 continue;
b4637271 1561 if (++idx <= start)
55682965 1562 continue;
3713b4e3
JB		 1563 if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
1564 continue;
1565 /* attempt to fit multiple wiphy data chunks into the skb */
1566 do {
1567 ret = nl80211_send_wiphy(dev, skb,
1568 NETLINK_CB(cb->skb).portid,
1569 cb->nlh->nlmsg_seq,
1570 NLM_F_MULTI,
1571 split, &cb->args[1],
1572 &cb->args[2],
1573 &cb->args[3]);
1574 if (ret < 0) {
1575 /*
1576 * If sending the wiphy data didn't fit (ENOBUFS
1577 * or EMSGSIZE returned), this SKB is still
1578 * empty (so it's not too big because another
1579 * wiphy dataset is already in the skb) and
1580 * we've not tried to adjust the dump allocation
1581 * yet ... then adjust the alloc size to be
1582 * bigger, and return 1 but with the empty skb.
1583 * This results in an empty message being RX'ed
1584 * in userspace, but that is ignored.
1585 *
1586 * We can then retry with the larger buffer.
1587 */
1588 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1589 !skb->len &&
1590 cb->min_dump_alloc < 4096) {
1591 cb->min_dump_alloc = 4096;
3713b4e3
JB		 1592 return 1;
1593 }
1594 idx--;
1595 break;
645e77de 1596 }
3713b4e3
JB		 1597 } while (cb->args[1] > 0);
1598 break;
55682965 1599 }
5fe231e8 1600 rtnl_unlock();
55682965
JB		 1601
1602 cb->args[0] = idx;
1603
1604 return skb->len;
1605}
1606
1607static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1608{
1609 struct sk_buff *msg;
4c476991 1610 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1611
645e77de 1612 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1613 if (!msg)
4c476991 1614 return -ENOMEM;
55682965 1615
3713b4e3
JB		 1616 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1617 false, NULL, NULL, NULL) < 0) {
4c476991
JB		 1618 nlmsg_free(msg);
1619 return -ENOBUFS;
1620 }
55682965 1621
134e6375 1622 return genlmsg_reply(msg, info);
55682965
JB		 1623}
1624
31888487
JM		 1625static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1626 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1627 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1628 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1629 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1630 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1631};
1632
1633static int parse_txq_params(struct nlattr *tb[],
1634 struct ieee80211_txq_params *txq_params)
1635{
a3304b0a 1636 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1637 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1638 !tb[NL80211_TXQ_ATTR_AIFS])
1639 return -EINVAL;
1640
a3304b0a 1641 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1642 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1643 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1644 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1645 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1646
a3304b0a
JB		 1647 if (txq_params->ac >= NL80211_NUM_ACS)
1648 return -EINVAL;
1649
31888487
JM		 1650 return 0;
1651}
1652
f444de05
JB		 1653static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1654{
1655 /*
cc1d2806
JB		 1656 * You can only set the channel explicitly for WDS interfaces,
1657 * all others have their channel managed via their respective
1658 * "establish a connection" command (connect, join, ...)
1659 *
1660 * For AP/GO and mesh mode, the channel can be set with the
1661 * channel userspace API, but is only stored and passed to the
1662 * low-level driver when the AP starts or the mesh is joined.
1663 * This is for backward compatibility, userspace can also give
1664 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1665 *
1666 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1667 * whatever else is going on, so they have their own special
1668 * operation to set the monitor channel if possible.
f444de05
JB		 1669 */
1670 return !wdev ||
1671 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1672 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1673 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1674 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1675}
1676
683b6d3b
JB		 1677static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1678 struct genl_info *info,
1679 struct cfg80211_chan_def *chandef)
1680{
dbeca2ea 1681 u32 control_freq;
683b6d3b
JB		 1682
1683 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1684 return -EINVAL;
1685
1686 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1687
1688 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1689 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1690 chandef->center_freq1 = control_freq;
1691 chandef->center_freq2 = 0;
683b6d3b
JB		 1692
1693 /* Primary channel not allowed */
1694 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1695 return -EINVAL;
1696
3d9d1d66
JB		 1697 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1698 enum nl80211_channel_type chantype;
1699
1700 chantype = nla_get_u32(
1701 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1702
1703 switch (chantype) {
1704 case NL80211_CHAN_NO_HT:
1705 case NL80211_CHAN_HT20:
1706 case NL80211_CHAN_HT40PLUS:
1707 case NL80211_CHAN_HT40MINUS:
1708 cfg80211_chandef_create(chandef, chandef->chan,
1709 chantype);
1710 break;
1711 default:
1712 return -EINVAL;
1713 }
1714 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1715 chandef->width =
1716 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1717 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1718 chandef->center_freq1 =
1719 nla_get_u32(
1720 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1721 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1722 chandef->center_freq2 =
1723 nla_get_u32(
1724 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1725 }
1726
9f5e8f6e 1727 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1728 return -EINVAL;
1729
9f5e8f6e
JB		 1730 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1731 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1732 return -EINVAL;
1733
683b6d3b
JB		 1734 return 0;
1735}
1736
f444de05
JB		 1737static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1738 struct wireless_dev *wdev,
1739 struct genl_info *info)
1740{
683b6d3b 1741 struct cfg80211_chan_def chandef;
f444de05 1742 int result;
e8c9bd5b
JB		 1743 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1744
1745 if (wdev)
1746 iftype = wdev->iftype;
f444de05 1747
f444de05
JB		 1748 if (!nl80211_can_set_dev_channel(wdev))
1749 return -EOPNOTSUPP;
1750
683b6d3b
JB		 1751 result = nl80211_parse_chandef(rdev, info, &chandef);
1752 if (result)
1753 return result;
f444de05 1754
e8c9bd5b 1755 switch (iftype) {
aa430da4
JB		 1756 case NL80211_IFTYPE_AP:
1757 case NL80211_IFTYPE_P2P_GO:
1758 if (wdev->beacon_interval) {
1759 result = -EBUSY;
1760 break;
1761 }
683b6d3b 1762 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1763 result = -EINVAL;
1764 break;
1765 }
683b6d3b 1766 wdev->preset_chandef = chandef;
aa430da4
JB		 1767 result = 0;
1768 break;
cc1d2806 1769 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1770 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1771 break;
e8c9bd5b 1772 case NL80211_IFTYPE_MONITOR:
683b6d3b 1773 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1774 break;
aa430da4 1775 default:
e8c9bd5b 1776 result = -EINVAL;
f444de05 1777 }
f444de05
JB		 1778
1779 return result;
1780}
1781
1782static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1783{
4c476991
JB		 1784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1785 struct net_device *netdev = info->user_ptr[1];
f444de05 1786
4c476991 1787 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1788}
1789
e8347eba
BJ		 1790static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1791{
43b19952
JB		 1792 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1793 struct net_device *dev = info->user_ptr[1];
1794 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1795 const u8 *bssid;
e8347eba
BJ		 1796
1797 if (!info->attrs[NL80211_ATTR_MAC])
1798 return -EINVAL;
1799
43b19952
JB		 1800 if (netif_running(dev))
1801 return -EBUSY;
e8347eba 1802
43b19952
JB		 1803 if (!rdev->ops->set_wds_peer)
1804 return -EOPNOTSUPP;
e8347eba 1805
43b19952
JB		 1806 if (wdev->iftype != NL80211_IFTYPE_WDS)
1807 return -EOPNOTSUPP;
e8347eba
BJ		 1808
1809 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1810 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1811}
1812
1813
55682965
JB		 1814static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1815{
1816 struct cfg80211_registered_device *rdev;
f444de05
JB		 1817 struct net_device *netdev = NULL;
1818 struct wireless_dev *wdev;
a1e567c8 1819 int result = 0, rem_txq_params = 0;
31888487 1820 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1821 u32 changed;
1822 u8 retry_short = 0, retry_long = 0;
1823 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1824 u8 coverage_class = 0;
55682965 1825
5fe231e8
JB		 1826 ASSERT_RTNL();
1827
f444de05
JB		 1828 /*
1829 * Try to find the wiphy and netdev. Normally this
1830 * function shouldn't need the netdev, but this is
1831 * done for backward compatibility -- previously
1832 * setting the channel was done per wiphy, but now
1833 * it is per netdev. Previous userland like hostapd
1834 * also passed a netdev to set_wiphy, so that it is
1835 * possible to let that go to the right netdev!
1836 */
4bbf4d56 1837
f444de05
JB		 1838 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1839 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1840
1841 netdev = dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 1842 if (netdev && netdev->ieee80211_ptr)
f444de05 1843 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 1844 else
f444de05 1845 netdev = NULL;
4bbf4d56
JB		 1846 }
1847
f444de05 1848 if (!netdev) {
878d9ec7
JB		 1849 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1850 info->attrs);
5fe231e8 1851 if (IS_ERR(rdev))
4c476991 1852 return PTR_ERR(rdev);
f444de05
JB		 1853 wdev = NULL;
1854 netdev = NULL;
1855 result = 0;
71fe96bf 1856 } else
f444de05 1857 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1858
1859 /*
1860 * end workaround code, by now the rdev is available
1861 * and locked, and wdev may or may not be NULL.
1862 */
4bbf4d56
JB		 1863
1864 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1865 result = cfg80211_dev_rename(
1866 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 1867
4bbf4d56
JB		 1868 if (result)
1869 goto bad_res;
31888487
JM		 1870
1871 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1872 struct ieee80211_txq_params txq_params;
1873 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1874
1875 if (!rdev->ops->set_txq_params) {
1876 result = -EOPNOTSUPP;
1877 goto bad_res;
1878 }
1879
f70f01c2
EP		 1880 if (!netdev) {
1881 result = -EINVAL;
1882 goto bad_res;
1883 }
1884
133a3ff2
JB		 1885 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1886 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1887 result = -EINVAL;
1888 goto bad_res;
1889 }
1890
2b5f8b0b
JB		 1891 if (!netif_running(netdev)) {
1892 result = -ENETDOWN;
1893 goto bad_res;
1894 }
1895
31888487
JM		 1896 nla_for_each_nested(nl_txq_params,
1897 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1898 rem_txq_params) {
1899 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1900 nla_data(nl_txq_params),
1901 nla_len(nl_txq_params),
1902 txq_params_policy);
1903 result = parse_txq_params(tb, &txq_params);
1904 if (result)
1905 goto bad_res;
1906
e35e4d28
HG		 1907 result = rdev_set_txq_params(rdev, netdev,
1908 &txq_params);
31888487
JM		 1909 if (result)
1910 goto bad_res;
1911 }
1912 }
55682965 1913
72bdcf34 1914 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1915 result = __nl80211_set_channel(rdev,
1916 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1917 info);
72bdcf34
JM		 1918 if (result)
1919 goto bad_res;
1920 }
1921
98d2ff8b 1922 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1923 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1924 enum nl80211_tx_power_setting type;
1925 int idx, mbm = 0;
1926
c8442118
JB		 1927 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1928 txp_wdev = NULL;
1929
98d2ff8b 1930 if (!rdev->ops->set_tx_power) {
60ea385f 1931 result = -EOPNOTSUPP;
98d2ff8b
JO		 1932 goto bad_res;
1933 }
1934
1935 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1936 type = nla_get_u32(info->attrs[idx]);
1937
1938 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1939 (type != NL80211_TX_POWER_AUTOMATIC)) {
1940 result = -EINVAL;
1941 goto bad_res;
1942 }
1943
1944 if (type != NL80211_TX_POWER_AUTOMATIC) {
1945 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1946 mbm = nla_get_u32(info->attrs[idx]);
1947 }
1948
c8442118 1949 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1950 if (result)
1951 goto bad_res;
1952 }
1953
afe0cbf8
BR		 1954 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1955 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1956 u32 tx_ant, rx_ant;
7f531e03
BR		 1957 if ((!rdev->wiphy.available_antennas_tx &&
1958 !rdev->wiphy.available_antennas_rx) ||
1959 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1960 result = -EOPNOTSUPP;
1961 goto bad_res;
1962 }
1963
1964 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1965 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1966
a7ffac95 1967 /* reject antenna configurations which don't match the
7f531e03
BR		 1968 * available antenna masks, except for the "all" mask */
1969 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1970 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1971 result = -EINVAL;
1972 goto bad_res;
1973 }
1974
7f531e03
BR		 1975 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1976 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1977
e35e4d28 1978 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 1979 if (result)
1980 goto bad_res;
1981 }
1982
b9a5f8ca
JM		 1983 changed = 0;
1984
1985 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1986 retry_short = nla_get_u8(
1987 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1988 if (retry_short == 0) {
1989 result = -EINVAL;
1990 goto bad_res;
1991 }
1992 changed |= WIPHY_PARAM_RETRY_SHORT;
1993 }
1994
1995 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1996 retry_long = nla_get_u8(
1997 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1998 if (retry_long == 0) {
1999 result = -EINVAL;
2000 goto bad_res;
2001 }
2002 changed |= WIPHY_PARAM_RETRY_LONG;
2003 }
2004
2005 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2006 frag_threshold = nla_get_u32(
2007 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2008 if (frag_threshold < 256) {
2009 result = -EINVAL;
2010 goto bad_res;
2011 }
2012 if (frag_threshold != (u32) -1) {
2013 /*
2014 * Fragments (apart from the last one) are required to
2015 * have even length. Make the fragmentation code
2016 * simpler by stripping LSB should someone try to use
2017 * odd threshold value.
2018 */
2019 frag_threshold &= ~0x1;
2020 }
2021 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2022 }
2023
2024 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2025 rts_threshold = nla_get_u32(
2026 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2027 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2028 }
2029
81077e82
LT		 2030 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2031 coverage_class = nla_get_u8(
2032 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2033 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2034 }
2035
b9a5f8ca
JM		 2036 if (changed) {
2037 u8 old_retry_short, old_retry_long;
2038 u32 old_frag_threshold, old_rts_threshold;
81077e82 2039 u8 old_coverage_class;
b9a5f8ca
JM		 2040
2041 if (!rdev->ops->set_wiphy_params) {
2042 result = -EOPNOTSUPP;
2043 goto bad_res;
2044 }
2045
2046 old_retry_short = rdev->wiphy.retry_short;
2047 old_retry_long = rdev->wiphy.retry_long;
2048 old_frag_threshold = rdev->wiphy.frag_threshold;
2049 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2050 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2051
2052 if (changed & WIPHY_PARAM_RETRY_SHORT)
2053 rdev->wiphy.retry_short = retry_short;
2054 if (changed & WIPHY_PARAM_RETRY_LONG)
2055 rdev->wiphy.retry_long = retry_long;
2056 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2057 rdev->wiphy.frag_threshold = frag_threshold;
2058 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2059 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2060 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2061 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2062
e35e4d28 2063 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2064 if (result) {
2065 rdev->wiphy.retry_short = old_retry_short;
2066 rdev->wiphy.retry_long = old_retry_long;
2067 rdev->wiphy.frag_threshold = old_frag_threshold;
2068 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2069 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2070 }
2071 }
72bdcf34 2072
306d6112 2073 bad_res:
f444de05
JB		 2074 if (netdev)
2075 dev_put(netdev);
55682965
JB		 2076 return result;
2077}
2078
71bbc994
JB		 2079static inline u64 wdev_id(struct wireless_dev *wdev)
2080{
2081 return (u64)wdev->identifier |
2082 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2083}
55682965 2084
683b6d3b
JB		 2085static int nl80211_send_chandef(struct sk_buff *msg,
2086 struct cfg80211_chan_def *chandef)
2087{
9f5e8f6e 2088 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2089
683b6d3b
JB		 2090 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2091 chandef->chan->center_freq))
2092 return -ENOBUFS;
3d9d1d66
JB		 2093 switch (chandef->width) {
2094 case NL80211_CHAN_WIDTH_20_NOHT:
2095 case NL80211_CHAN_WIDTH_20:
2096 case NL80211_CHAN_WIDTH_40:
2097 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2098 cfg80211_get_chandef_type(chandef)))
2099 return -ENOBUFS;
2100 break;
2101 default:
2102 break;
2103 }
2104 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2105 return -ENOBUFS;
2106 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2107 return -ENOBUFS;
2108 if (chandef->center_freq2 &&
2109 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2110 return -ENOBUFS;
2111 return 0;
2112}
2113
15e47304 2114static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2115 struct cfg80211_registered_device *rdev,
72fb2abc 2116 struct wireless_dev *wdev)
55682965 2117{
72fb2abc 2118 struct net_device *dev = wdev->netdev;
55682965
JB		 2119 void *hdr;
2120
15e47304 2121 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2122 if (!hdr)
2123 return -1;
2124
72fb2abc
JB		 2125 if (dev &&
2126 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2127 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2128 goto nla_put_failure;
2129
2130 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2131 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2132 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2133 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2134 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2135 rdev->devlist_generation ^
2136 (cfg80211_rdev_list_generation << 2)))
2137 goto nla_put_failure;
f5ea9120 2138
5b7ccaf3 2139 if (rdev->ops->get_channel) {
683b6d3b
JB		 2140 int ret;
2141 struct cfg80211_chan_def chandef;
2142
2143 ret = rdev_get_channel(rdev, wdev, &chandef);
2144 if (ret == 0) {
2145 if (nl80211_send_chandef(msg, &chandef))
2146 goto nla_put_failure;
2147 }
d91df0e3
PF		 2148 }
2149
b84e7a05
AQ		 2150 if (wdev->ssid_len) {
2151 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2152 goto nla_put_failure;
2153 }
2154
55682965
JB		 2155 return genlmsg_end(msg, hdr);
2156
2157 nla_put_failure:
bc3ed28c
TG		 2158 genlmsg_cancel(msg, hdr);
2159 return -EMSGSIZE;
55682965
JB		 2160}
2161
2162static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2163{
2164 int wp_idx = 0;
2165 int if_idx = 0;
2166 int wp_start = cb->args[0];
2167 int if_start = cb->args[1];
f5ea9120 2168 struct cfg80211_registered_device *rdev;
55682965
JB		 2169 struct wireless_dev *wdev;
2170
5fe231e8 2171 rtnl_lock();
f5ea9120
JB		 2172 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2173 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2174 continue;
bba95fef
JB		 2175 if (wp_idx < wp_start) {
2176 wp_idx++;
55682965 2177 continue;
bba95fef 2178 }
55682965
JB		 2179 if_idx = 0;
2180
89a54e48 2181 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2182 if (if_idx < if_start) {
2183 if_idx++;
55682965 2184 continue;
bba95fef 2185 }
15e47304 2186 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2187 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2188 rdev, wdev) < 0) {
bba95fef
JB		 2189 goto out;
2190 }
2191 if_idx++;
55682965 2192 }
bba95fef
JB		 2193
2194 wp_idx++;
55682965 2195 }
bba95fef 2196 out:
5fe231e8 2197 rtnl_unlock();
55682965
JB		 2198
2199 cb->args[0] = wp_idx;
2200 cb->args[1] = if_idx;
2201
2202 return skb->len;
2203}
2204
2205static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2206{
2207 struct sk_buff *msg;
4c476991 2208 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2209 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2210
fd2120ca 2211 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2212 if (!msg)
4c476991 2213 return -ENOMEM;
55682965 2214
15e47304 2215 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2216 dev, wdev) < 0) {
4c476991
JB		 2217 nlmsg_free(msg);
2218 return -ENOBUFS;
2219 }
55682965 2220
134e6375 2221 return genlmsg_reply(msg, info);
55682965
JB		 2222}
2223
66f7ac50
MW		 2224static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2225 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2226 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2227 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2228 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2229 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2230};
2231
2232static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2233{
2234 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2235 int flag;
2236
2237 *mntrflags = 0;
2238
2239 if (!nla)
2240 return -EINVAL;
2241
2242 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2243 nla, mntr_flags_policy))
2244 return -EINVAL;
2245
2246 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2247 if (flags[flag])
2248 *mntrflags |= (1<<flag);
2249
2250 return 0;
2251}
2252
9bc383de 2253static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2254 struct net_device *netdev, u8 use_4addr,
2255 enum nl80211_iftype iftype)
9bc383de 2256{
ad4bb6f8 2257 if (!use_4addr) {
f350a0a8 2258 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2259 return -EBUSY;
9bc383de 2260 return 0;
ad4bb6f8 2261 }
9bc383de
JB		 2262
2263 switch (iftype) {
2264 case NL80211_IFTYPE_AP_VLAN:
2265 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2266 return 0;
2267 break;
2268 case NL80211_IFTYPE_STATION:
2269 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2270 return 0;
2271 break;
2272 default:
2273 break;
2274 }
2275
2276 return -EOPNOTSUPP;
2277}
2278
55682965
JB		 2279static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2280{
4c476991 2281 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2282 struct vif_params params;
e36d56b6 2283 int err;
04a773ad 2284 enum nl80211_iftype otype, ntype;
4c476991 2285 struct net_device *dev = info->user_ptr[1];
92ffe055 2286 u32 _flags, *flags = NULL;
ac7f9cfa 2287 bool change = false;
55682965 2288
2ec600d6
LCC		 2289 memset(&params, 0, sizeof(params));
2290
04a773ad 2291 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2292
723b038d 2293 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2294 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2295 if (otype != ntype)
ac7f9cfa 2296 change = true;
4c476991
JB		 2297 if (ntype > NL80211_IFTYPE_MAX)
2298 return -EINVAL;
723b038d
JB		 2299 }
2300
92ffe055 2301 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2302 struct wireless_dev *wdev = dev->ieee80211_ptr;
2303
4c476991
JB		 2304 if (ntype != NL80211_IFTYPE_MESH_POINT)
2305 return -EINVAL;
29cbe68c
JB		 2306 if (netif_running(dev))
2307 return -EBUSY;
2308
2309 wdev_lock(wdev);
2310 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2311 IEEE80211_MAX_MESH_ID_LEN);
2312 wdev->mesh_id_up_len =
2313 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2314 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2315 wdev->mesh_id_up_len);
2316 wdev_unlock(wdev);
2ec600d6
LCC		 2317 }
2318
8b787643
FF		 2319 if (info->attrs[NL80211_ATTR_4ADDR]) {
2320 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2321 change = true;
ad4bb6f8 2322 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2323 if (err)
4c476991 2324 return err;
8b787643
FF		 2325 } else {
2326 params.use_4addr = -1;
2327 }
2328
92ffe055 2329 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2330 if (ntype != NL80211_IFTYPE_MONITOR)
2331 return -EINVAL;
92ffe055
JB		 2332 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2333 &_flags);
ac7f9cfa 2334 if (err)
4c476991 2335 return err;
ac7f9cfa
JB		 2336
2337 flags = &_flags;
2338 change = true;
92ffe055 2339 }
3b85875a 2340
ac7f9cfa 2341 if (change)
3d54d255 2342 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2343 else
2344 err = 0;
60719ffd 2345
9bc383de
JB		 2346 if (!err && params.use_4addr != -1)
2347 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2348
55682965
JB		 2349 return err;
2350}
2351
2352static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2353{
4c476991 2354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2355 struct vif_params params;
84efbb84 2356 struct wireless_dev *wdev;
1c90f9d4 2357 struct sk_buff *msg;
55682965
JB		 2358 int err;
2359 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2360 u32 flags;
55682965 2361
2ec600d6
LCC		 2362 memset(&params, 0, sizeof(params));
2363
55682965
JB		 2364 if (!info->attrs[NL80211_ATTR_IFNAME])
2365 return -EINVAL;
2366
2367 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2368 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2369 if (type > NL80211_IFTYPE_MAX)
2370 return -EINVAL;
2371 }
2372
79c97e97 2373 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2374 !(rdev->wiphy.interface_modes & (1 << type)))
2375 return -EOPNOTSUPP;
55682965 2376
1c18f145
AS		 2377 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2378 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2379 ETH_ALEN);
2380 if (!is_valid_ether_addr(params.macaddr))
2381 return -EADDRNOTAVAIL;
2382 }
2383
9bc383de 2384 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2385 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2386 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2387 if (err)
4c476991 2388 return err;
9bc383de 2389 }
8b787643 2390
1c90f9d4
JB		 2391 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2392 if (!msg)
2393 return -ENOMEM;
2394
66f7ac50
MW		 2395 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2396 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2397 &flags);
e35e4d28
HG		 2398 wdev = rdev_add_virtual_intf(rdev,
2399 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2400 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2401 if (IS_ERR(wdev)) {
2402 nlmsg_free(msg);
84efbb84 2403 return PTR_ERR(wdev);
1c90f9d4 2404 }
2ec600d6 2405
98104fde
JB		 2406 switch (type) {
2407 case NL80211_IFTYPE_MESH_POINT:
2408 if (!info->attrs[NL80211_ATTR_MESH_ID])
2409 break;
29cbe68c
JB		 2410 wdev_lock(wdev);
2411 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2412 IEEE80211_MAX_MESH_ID_LEN);
2413 wdev->mesh_id_up_len =
2414 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2415 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2416 wdev->mesh_id_up_len);
2417 wdev_unlock(wdev);
98104fde
JB		 2418 break;
2419 case NL80211_IFTYPE_P2P_DEVICE:
2420 /*
2421 * P2P Device doesn't have a netdev, so doesn't go
2422 * through the netdev notifier and must be added here
2423 */
2424 mutex_init(&wdev->mtx);
2425 INIT_LIST_HEAD(&wdev->event_list);
2426 spin_lock_init(&wdev->event_lock);
2427 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2428 spin_lock_init(&wdev->mgmt_registrations_lock);
2429
98104fde
JB		 2430 wdev->identifier = ++rdev->wdev_id;
2431 list_add_rcu(&wdev->list, &rdev->wdev_list);
2432 rdev->devlist_generation++;
98104fde
JB		 2433 break;
2434 default:
2435 break;
29cbe68c
JB		 2436 }
2437
15e47304 2438 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2439 rdev, wdev) < 0) {
2440 nlmsg_free(msg);
2441 return -ENOBUFS;
2442 }
2443
2444 return genlmsg_reply(msg, info);
55682965
JB		 2445}
2446
2447static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2448{
4c476991 2449 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2450 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2451
4c476991
JB		 2452 if (!rdev->ops->del_virtual_intf)
2453 return -EOPNOTSUPP;
55682965 2454
84efbb84
JB		 2455 /*
2456 * If we remove a wireless device without a netdev then clear
2457 * user_ptr[1] so that nl80211_post_doit won't dereference it
2458 * to check if it needs to do dev_put(). Otherwise it crashes
2459 * since the wdev has been freed, unlike with a netdev where
2460 * we need the dev_put() for the netdev to really be freed.
2461 */
2462 if (!wdev->netdev)
2463 info->user_ptr[1] = NULL;
2464
e35e4d28 2465 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2466}
2467
1d9d9213
SW		 2468static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2469{
2470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2471 struct net_device *dev = info->user_ptr[1];
2472 u16 noack_map;
2473
2474 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2475 return -EINVAL;
2476
2477 if (!rdev->ops->set_noack_map)
2478 return -EOPNOTSUPP;
2479
2480 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2481
e35e4d28 2482 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2483}
2484
41ade00f
JB		 2485struct get_key_cookie {
2486 struct sk_buff *msg;
2487 int error;
b9454e83 2488 int idx;
41ade00f
JB		 2489};
2490
2491static void get_key_callback(void *c, struct key_params *params)
2492{
b9454e83 2493 struct nlattr *key;
41ade00f
JB		 2494 struct get_key_cookie *cookie = c;
2495
9360ffd1
DM		 2496 if ((params->key &&
2497 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2498 params->key_len, params->key)) ||
2499 (params->seq &&
2500 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2501 params->seq_len, params->seq)) ||
2502 (params->cipher &&
2503 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2504 params->cipher)))
2505 goto nla_put_failure;
41ade00f 2506
b9454e83
JB		 2507 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2508 if (!key)
2509 goto nla_put_failure;
2510
9360ffd1
DM		 2511 if ((params->key &&
2512 nla_put(cookie->msg, NL80211_KEY_DATA,
2513 params->key_len, params->key)) ||
2514 (params->seq &&
2515 nla_put(cookie->msg, NL80211_KEY_SEQ,
2516 params->seq_len, params->seq)) ||
2517 (params->cipher &&
2518 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2519 params->cipher)))
2520 goto nla_put_failure;
b9454e83 2521
9360ffd1
DM		 2522 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2523 goto nla_put_failure;
b9454e83
JB		 2524
2525 nla_nest_end(cookie->msg, key);
2526
41ade00f
JB		 2527 return;
2528 nla_put_failure:
2529 cookie->error = 1;
2530}
2531
2532static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2533{
4c476991 2534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2535 int err;
4c476991 2536 struct net_device *dev = info->user_ptr[1];
41ade00f 2537 u8 key_idx = 0;
e31b8213
JB		 2538 const u8 *mac_addr = NULL;
2539 bool pairwise;
41ade00f
JB		 2540 struct get_key_cookie cookie = {
2541 .error = 0,
2542 };
2543 void *hdr;
2544 struct sk_buff *msg;
2545
2546 if (info->attrs[NL80211_ATTR_KEY_IDX])
2547 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2548
3cfcf6ac 2549 if (key_idx > 5)
41ade00f
JB		 2550 return -EINVAL;
2551
2552 if (info->attrs[NL80211_ATTR_MAC])
2553 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2554
e31b8213
JB		 2555 pairwise = !!mac_addr;
2556 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2557 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2558 if (kt >= NUM_NL80211_KEYTYPES)
2559 return -EINVAL;
2560 if (kt != NL80211_KEYTYPE_GROUP &&
2561 kt != NL80211_KEYTYPE_PAIRWISE)
2562 return -EINVAL;
2563 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2564 }
2565
4c476991
JB		 2566 if (!rdev->ops->get_key)
2567 return -EOPNOTSUPP;
41ade00f 2568
fd2120ca 2569 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2570 if (!msg)
2571 return -ENOMEM;
41ade00f 2572
15e47304 2573 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2574 NL80211_CMD_NEW_KEY);
4c476991
JB		 2575 if (IS_ERR(hdr))
2576 return PTR_ERR(hdr);
41ade00f
JB		 2577
2578 cookie.msg = msg;
b9454e83 2579 cookie.idx = key_idx;
41ade00f 2580
9360ffd1
DM		 2581 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2582 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2583 goto nla_put_failure;
2584 if (mac_addr &&
2585 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2586 goto nla_put_failure;
41ade00f 2587
e31b8213
JB		 2588 if (pairwise && mac_addr &&
2589 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2590 return -ENOENT;
2591
e35e4d28
HG		 2592 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2593 get_key_callback);
41ade00f
JB		 2594
2595 if (err)
6c95e2a2 2596 goto free_msg;
41ade00f
JB		 2597
2598 if (cookie.error)
2599 goto nla_put_failure;
2600
2601 genlmsg_end(msg, hdr);
4c476991 2602 return genlmsg_reply(msg, info);
41ade00f
JB		 2603
2604 nla_put_failure:
2605 err = -ENOBUFS;
6c95e2a2 2606 free_msg:
41ade00f 2607 nlmsg_free(msg);
41ade00f
JB		 2608 return err;
2609}
2610
2611static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2612{
4c476991 2613 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2614 struct key_parse key;
41ade00f 2615 int err;
4c476991 2616 struct net_device *dev = info->user_ptr[1];
41ade00f 2617
b9454e83
JB		 2618 err = nl80211_parse_key(info, &key);
2619 if (err)
2620 return err;
41ade00f 2621
b9454e83 2622 if (key.idx < 0)
41ade00f
JB		 2623 return -EINVAL;
2624
b9454e83
JB		 2625 /* only support setting default key */
2626 if (!key.def && !key.defmgmt)
41ade00f
JB		 2627 return -EINVAL;
2628
dbd2fd65 2629 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2630
dbd2fd65
JB		 2631 if (key.def) {
2632 if (!rdev->ops->set_default_key) {
2633 err = -EOPNOTSUPP;
2634 goto out;
2635 }
41ade00f 2636
dbd2fd65
JB		 2637 err = nl80211_key_allowed(dev->ieee80211_ptr);
2638 if (err)
2639 goto out;
2640
e35e4d28 2641 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2642 key.def_uni, key.def_multi);
2643
2644 if (err)
2645 goto out;
fffd0934 2646
3d23e349 2647#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2648 dev->ieee80211_ptr->wext.default_key = key.idx;
2649#endif
2650 } else {
2651 if (key.def_uni || !key.def_multi) {
2652 err = -EINVAL;
2653 goto out;
2654 }
2655
2656 if (!rdev->ops->set_default_mgmt_key) {
2657 err = -EOPNOTSUPP;
2658 goto out;
2659 }
2660
2661 err = nl80211_key_allowed(dev->ieee80211_ptr);
2662 if (err)
2663 goto out;
2664
e35e4d28 2665 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2666 if (err)
2667 goto out;
2668
2669#ifdef CONFIG_CFG80211_WEXT
2670 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2671#endif
dbd2fd65
JB		 2672 }
2673
2674 out:
fffd0934 2675 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2676
41ade00f
JB		 2677 return err;
2678}
2679
2680static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2681{
4c476991 2682 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2683 int err;
4c476991 2684 struct net_device *dev = info->user_ptr[1];
b9454e83 2685 struct key_parse key;
e31b8213 2686 const u8 *mac_addr = NULL;
41ade00f 2687
b9454e83
JB		 2688 err = nl80211_parse_key(info, &key);
2689 if (err)
2690 return err;
41ade00f 2691
b9454e83 2692 if (!key.p.key)
41ade00f
JB		 2693 return -EINVAL;
2694
41ade00f
JB		 2695 if (info->attrs[NL80211_ATTR_MAC])
2696 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2697
e31b8213
JB		 2698 if (key.type == -1) {
2699 if (mac_addr)
2700 key.type = NL80211_KEYTYPE_PAIRWISE;
2701 else
2702 key.type = NL80211_KEYTYPE_GROUP;
2703 }
2704
2705 /* for now */
2706 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2707 key.type != NL80211_KEYTYPE_GROUP)
2708 return -EINVAL;
2709
4c476991
JB		 2710 if (!rdev->ops->add_key)
2711 return -EOPNOTSUPP;
25e47c18 2712
e31b8213
JB		 2713 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2714 key.type == NL80211_KEYTYPE_PAIRWISE,
2715 mac_addr))
4c476991 2716 return -EINVAL;
41ade00f 2717
fffd0934
JB		 2718 wdev_lock(dev->ieee80211_ptr);
2719 err = nl80211_key_allowed(dev->ieee80211_ptr);
2720 if (!err)
e35e4d28
HG		 2721 err = rdev_add_key(rdev, dev, key.idx,
2722 key.type == NL80211_KEYTYPE_PAIRWISE,
2723 mac_addr, &key.p);
fffd0934 2724 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2725
41ade00f
JB		 2726 return err;
2727}
2728
2729static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2730{
4c476991 2731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2732 int err;
4c476991 2733 struct net_device *dev = info->user_ptr[1];
41ade00f 2734 u8 *mac_addr = NULL;
b9454e83 2735 struct key_parse key;
41ade00f 2736
b9454e83
JB		 2737 err = nl80211_parse_key(info, &key);
2738 if (err)
2739 return err;
41ade00f
JB		 2740
2741 if (info->attrs[NL80211_ATTR_MAC])
2742 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2743
e31b8213
JB		 2744 if (key.type == -1) {
2745 if (mac_addr)
2746 key.type = NL80211_KEYTYPE_PAIRWISE;
2747 else
2748 key.type = NL80211_KEYTYPE_GROUP;
2749 }
2750
2751 /* for now */
2752 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2753 key.type != NL80211_KEYTYPE_GROUP)
2754 return -EINVAL;
2755
4c476991
JB		 2756 if (!rdev->ops->del_key)
2757 return -EOPNOTSUPP;
41ade00f 2758
fffd0934
JB		 2759 wdev_lock(dev->ieee80211_ptr);
2760 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2761
2762 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2763 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2764 err = -ENOENT;
2765
fffd0934 2766 if (!err)
e35e4d28
HG		 2767 err = rdev_del_key(rdev, dev, key.idx,
2768 key.type == NL80211_KEYTYPE_PAIRWISE,
2769 mac_addr);
41ade00f 2770
3d23e349 2771#ifdef CONFIG_CFG80211_WEXT
08645126 2772 if (!err) {
b9454e83 2773 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2774 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2775 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2776 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2777 }
2778#endif
fffd0934 2779 wdev_unlock(dev->ieee80211_ptr);
08645126 2780
41ade00f
JB		 2781 return err;
2782}
2783
77765eaf
VT		 2784/* This function returns an error or the number of nested attributes */
2785static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2786{
2787 struct nlattr *attr;
2788 int n_entries = 0, tmp;
2789
2790 nla_for_each_nested(attr, nl_attr, tmp) {
2791 if (nla_len(attr) != ETH_ALEN)
2792 return -EINVAL;
2793
2794 n_entries++;
2795 }
2796
2797 return n_entries;
2798}
2799
2800/*
2801 * This function parses ACL information and allocates memory for ACL data.
2802 * On successful return, the calling function is responsible to free the
2803 * ACL buffer returned by this function.
2804 */
2805static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2806 struct genl_info *info)
2807{
2808 enum nl80211_acl_policy acl_policy;
2809 struct nlattr *attr;
2810 struct cfg80211_acl_data *acl;
2811 int i = 0, n_entries, tmp;
2812
2813 if (!wiphy->max_acl_mac_addrs)
2814 return ERR_PTR(-EOPNOTSUPP);
2815
2816 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2817 return ERR_PTR(-EINVAL);
2818
2819 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2820 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2821 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2822 return ERR_PTR(-EINVAL);
2823
2824 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2825 return ERR_PTR(-EINVAL);
2826
2827 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2828 if (n_entries < 0)
2829 return ERR_PTR(n_entries);
2830
2831 if (n_entries > wiphy->max_acl_mac_addrs)
2832 return ERR_PTR(-ENOTSUPP);
2833
2834 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2835 GFP_KERNEL);
2836 if (!acl)
2837 return ERR_PTR(-ENOMEM);
2838
2839 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2840 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2841 i++;
2842 }
2843
2844 acl->n_acl_entries = n_entries;
2845 acl->acl_policy = acl_policy;
2846
2847 return acl;
2848}
2849
2850static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2851{
2852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2853 struct net_device *dev = info->user_ptr[1];
2854 struct cfg80211_acl_data *acl;
2855 int err;
2856
2857 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2858 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2859 return -EOPNOTSUPP;
2860
2861 if (!dev->ieee80211_ptr->beacon_interval)
2862 return -EINVAL;
2863
2864 acl = parse_acl_data(&rdev->wiphy, info);
2865 if (IS_ERR(acl))
2866 return PTR_ERR(acl);
2867
2868 err = rdev_set_mac_acl(rdev, dev, acl);
2869
2870 kfree(acl);
2871
2872 return err;
2873}
2874
8860020e
JB		 2875static int nl80211_parse_beacon(struct genl_info *info,
2876 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2877{
8860020e 2878 bool haveinfo = false;
ed1b6cc7 2879
9946ecfb
JM		 2880 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2881 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2882 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2883 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2884 return -EINVAL;
2885
8860020e 2886 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2887
ed1b6cc7 2888 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2889 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2890 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2891 if (!bcn->head_len)
2892 return -EINVAL;
2893 haveinfo = true;
ed1b6cc7
JB		 2894 }
2895
2896 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2897 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2898 bcn->tail_len =
ed1b6cc7 2899 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2900 haveinfo = true;
ed1b6cc7
JB		 2901 }
2902
4c476991
JB		 2903 if (!haveinfo)
2904 return -EINVAL;
3b85875a 2905
9946ecfb 2906 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2907 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2908 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2909 }
2910
2911 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2912 bcn->proberesp_ies =
9946ecfb 2913 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2914 bcn->proberesp_ies_len =
9946ecfb
JM		 2915 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2916 }
2917
2918 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2919 bcn->assocresp_ies =
9946ecfb 2920 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2921 bcn->assocresp_ies_len =
9946ecfb
JM		 2922 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2923 }
2924
00f740e1 2925 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2926 bcn->probe_resp =
00f740e1 2927 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2928 bcn->probe_resp_len =
00f740e1
AN		 2929 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2930 }
2931
8860020e
JB		 2932 return 0;
2933}
2934
46c1dd0c
FF		 2935static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2936 struct cfg80211_ap_settings *params)
2937{
2938 struct wireless_dev *wdev;
2939 bool ret = false;
2940
89a54e48 2941 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2942 if (wdev->iftype != NL80211_IFTYPE_AP &&
2943 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2944 continue;
2945
683b6d3b 2946 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2947 continue;
2948
683b6d3b 2949 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2950 ret = true;
2951 break;
2952 }
2953
46c1dd0c
FF		 2954 return ret;
2955}
2956
e39e5b5e
JM		 2957static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2958 enum nl80211_auth_type auth_type,
2959 enum nl80211_commands cmd)
2960{
2961 if (auth_type > NL80211_AUTHTYPE_MAX)
2962 return false;
2963
2964 switch (cmd) {
2965 case NL80211_CMD_AUTHENTICATE:
2966 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2967 auth_type == NL80211_AUTHTYPE_SAE)
2968 return false;
2969 return true;
2970 case NL80211_CMD_CONNECT:
2971 case NL80211_CMD_START_AP:
2972 /* SAE not supported yet */
2973 if (auth_type == NL80211_AUTHTYPE_SAE)
2974 return false;
2975 return true;
2976 default:
2977 return false;
2978 }
2979}
2980
8860020e
JB		 2981static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2982{
2983 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2984 struct net_device *dev = info->user_ptr[1];
2985 struct wireless_dev *wdev = dev->ieee80211_ptr;
2986 struct cfg80211_ap_settings params;
2987 int err;
04f39047 2988 u8 radar_detect_width = 0;
8860020e
JB		 2989
2990 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2991 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2992 return -EOPNOTSUPP;
2993
2994 if (!rdev->ops->start_ap)
2995 return -EOPNOTSUPP;
2996
2997 if (wdev->beacon_interval)
2998 return -EALREADY;
2999
3000 memset(&params, 0, sizeof(params));
3001
3002 /* these are required for START_AP */
3003 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3004 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3005 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3006 return -EINVAL;
3007
3008 err = nl80211_parse_beacon(info, &params.beacon);
3009 if (err)
3010 return err;
3011
3012 params.beacon_interval =
3013 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3014 params.dtim_period =
3015 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3016
3017 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3018 if (err)
3019 return err;
3020
3021 /*
3022 * In theory, some of these attributes should be required here
3023 * but since they were not used when the command was originally
3024 * added, keep them optional for old user space programs to let
3025 * them continue to work with drivers that do not need the
3026 * additional information -- drivers must check!
3027 */
3028 if (info->attrs[NL80211_ATTR_SSID]) {
3029 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3030 params.ssid_len =
3031 nla_len(info->attrs[NL80211_ATTR_SSID]);
3032 if (params.ssid_len == 0 ||
3033 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3034 return -EINVAL;
3035 }
3036
3037 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3038 params.hidden_ssid = nla_get_u32(
3039 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3040 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3041 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3042 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3043 return -EINVAL;
3044 }
3045
3046 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3047
3048 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3049 params.auth_type = nla_get_u32(
3050 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3051 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3052 NL80211_CMD_START_AP))
8860020e
JB		 3053 return -EINVAL;
3054 } else
3055 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3056
3057 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3058 NL80211_MAX_NR_CIPHER_SUITES);
3059 if (err)
3060 return err;
3061
1b658f11
VT		 3062 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3063 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3064 return -EOPNOTSUPP;
3065 params.inactivity_timeout = nla_get_u16(
3066 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3067 }
3068
53cabad7
JB		 3069 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3070 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3071 return -EINVAL;
3072 params.p2p_ctwindow =
3073 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3074 if (params.p2p_ctwindow > 127)
3075 return -EINVAL;
3076 if (params.p2p_ctwindow != 0 &&
3077 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3078 return -EINVAL;
3079 }
3080
3081 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3082 u8 tmp;
3083
3084 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3085 return -EINVAL;
3086 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3087 if (tmp > 1)
3088 return -EINVAL;
3089 params.p2p_opp_ps = tmp;
3090 if (params.p2p_opp_ps != 0 &&
3091 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3092 return -EINVAL;
3093 }
3094
aa430da4 3095 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3096 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3097 if (err)
3098 return err;
3099 } else if (wdev->preset_chandef.chan) {
3100 params.chandef = wdev->preset_chandef;
46c1dd0c 3101 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3102 return -EINVAL;
3103
683b6d3b 3104 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3105 return -EINVAL;
3106
04f39047
SW		 3107 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3108 if (err < 0)
3109 return err;
3110 if (err) {
3111 radar_detect_width = BIT(params.chandef.width);
3112 params.radar_required = true;
3113 }
3114
04f39047
SW		 3115 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3116 params.chandef.chan,
3117 CHAN_MODE_SHARED,
3118 radar_detect_width);
e4e32459
MK		 3119 if (err)
3120 return err;
3121
77765eaf
VT		 3122 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3123 params.acl = parse_acl_data(&rdev->wiphy, info);
3124 if (IS_ERR(params.acl))
3125 return PTR_ERR(params.acl);
3126 }
3127
e35e4d28 3128 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3129 if (!err) {
683b6d3b 3130 wdev->preset_chandef = params.chandef;
8860020e 3131 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3132 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3133 wdev->ssid_len = params.ssid_len;
3134 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3135 }
77765eaf
VT		 3136
3137 kfree(params.acl);
3138
56d1893d 3139 return err;
ed1b6cc7
JB		 3140}
3141
8860020e
JB		 3142static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3143{
3144 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3145 struct net_device *dev = info->user_ptr[1];
3146 struct wireless_dev *wdev = dev->ieee80211_ptr;
3147 struct cfg80211_beacon_data params;
3148 int err;
3149
3150 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3151 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3152 return -EOPNOTSUPP;
3153
3154 if (!rdev->ops->change_beacon)
3155 return -EOPNOTSUPP;
3156
3157 if (!wdev->beacon_interval)
3158 return -EINVAL;
3159
3160 err = nl80211_parse_beacon(info, &params);
3161 if (err)
3162 return err;
3163
e35e4d28 3164 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 3165}
3166
3167static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3168{
4c476991
JB		 3169 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3170 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3171
60771780 3172 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3173}
3174
5727ef1b
JB		 3175static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3176 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3177 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3178 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3179 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3180 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3181 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3182};
3183
eccb8e8f 3184static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3185 enum nl80211_iftype iftype,
eccb8e8f 3186 struct station_parameters *params)
5727ef1b
JB		 3187{
3188 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3189 struct nlattr *nla;
5727ef1b
JB		 3190 int flag;
3191
eccb8e8f
JB		 3192 /*
3193 * Try parsing the new attribute first so userspace
3194 * can specify both for older kernels.
3195 */
3196 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3197 if (nla) {
3198 struct nl80211_sta_flag_update *sta_flags;
3199
3200 sta_flags = nla_data(nla);
3201 params->sta_flags_mask = sta_flags->mask;
3202 params->sta_flags_set = sta_flags->set;
77ee7c89 3203 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3204 if ((params->sta_flags_mask |
3205 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3206 return -EINVAL;
3207 return 0;
3208 }
3209
3210 /* if present, parse the old attribute */
5727ef1b 3211
eccb8e8f 3212 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3213 if (!nla)
3214 return 0;
3215
3216 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3217 nla, sta_flags_policy))
3218 return -EINVAL;
3219
bdd3ae3d
JB		 3220 /*
3221 * Only allow certain flags for interface types so that
3222 * other attributes are silently ignored. Remember that
3223 * this is backward compatibility code with old userspace
3224 * and shouldn't be hit in other cases anyway.
3225 */
3226 switch (iftype) {
3227 case NL80211_IFTYPE_AP:
3228 case NL80211_IFTYPE_AP_VLAN:
3229 case NL80211_IFTYPE_P2P_GO:
3230 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3231 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3232 BIT(NL80211_STA_FLAG_WME) |
3233 BIT(NL80211_STA_FLAG_MFP);
3234 break;
3235 case NL80211_IFTYPE_P2P_CLIENT:
3236 case NL80211_IFTYPE_STATION:
3237 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3238 BIT(NL80211_STA_FLAG_TDLS_PEER);
3239 break;
3240 case NL80211_IFTYPE_MESH_POINT:
3241 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3242 BIT(NL80211_STA_FLAG_MFP) |
3243 BIT(NL80211_STA_FLAG_AUTHORIZED);
3244 default:
3245 return -EINVAL;
3246 }
5727ef1b 3247
3383b5a6
JB		 3248 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3249 if (flags[flag]) {
eccb8e8f 3250 params->sta_flags_set |= (1<<flag);
5727ef1b 3251
3383b5a6
JB		 3252 /* no longer support new API additions in old API */
3253 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3254 return -EINVAL;
3255 }
3256 }
3257
5727ef1b
JB		 3258 return 0;
3259}
3260
c8dcfd8a
FF		 3261static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3262 int attr)
3263{
3264 struct nlattr *rate;
8eb41c8d
VK		 3265 u32 bitrate;
3266 u16 bitrate_compat;
c8dcfd8a
FF		 3267
3268 rate = nla_nest_start(msg, attr);
3269 if (!rate)
db9c64cf 3270 return false;
c8dcfd8a
FF		 3271
3272 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3273 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3274 /* report 16-bit bitrate only if we can */
3275 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3276 if (bitrate > 0 &&
3277 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3278 return false;
3279 if (bitrate_compat > 0 &&
3280 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3281 return false;
3282
3283 if (info->flags & RATE_INFO_FLAGS_MCS) {
3284 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3285 return false;
3286 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3287 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3288 return false;
3289 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3290 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3291 return false;
3292 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3293 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3294 return false;
3295 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3296 return false;
3297 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3298 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3299 return false;
3300 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3301 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3302 return false;
3303 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3304 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3305 return false;
3306 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3307 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3308 return false;
3309 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3310 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3311 return false;
3312 }
c8dcfd8a
FF		 3313
3314 nla_nest_end(msg, rate);
3315 return true;
c8dcfd8a
FF		 3316}
3317
119363c7
FF		 3318static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3319 int id)
3320{
3321 void *attr;
3322 int i = 0;
3323
3324 if (!mask)
3325 return true;
3326
3327 attr = nla_nest_start(msg, id);
3328 if (!attr)
3329 return false;
3330
3331 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3332 if (!(mask & BIT(i)))
3333 continue;
3334
3335 if (nla_put_u8(msg, i, signal[i]))
3336 return false;
3337 }
3338
3339 nla_nest_end(msg, attr);
3340
3341 return true;
3342}
3343
15e47304 3344static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3345 int flags,
3346 struct cfg80211_registered_device *rdev,
3347 struct net_device *dev,
98b62183 3348 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3349{
3350 void *hdr;
f4263c98 3351 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3352
15e47304 3353 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3354 if (!hdr)
3355 return -1;
3356
9360ffd1
DM		 3357 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3358 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3359 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3360 goto nla_put_failure;
f5ea9120 3361
2ec600d6
LCC		 3362 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3363 if (!sinfoattr)
fd5b74dc 3364 goto nla_put_failure;
9360ffd1
DM		 3365 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3366 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3367 sinfo->connected_time))
3368 goto nla_put_failure;
3369 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3370 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3371 sinfo->inactive_time))
3372 goto nla_put_failure;
42745e03
VK		 3373 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3374 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3375 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3376 (u32)sinfo->rx_bytes))
9360ffd1 3377 goto nla_put_failure;
42745e03 3378 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3379 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3380 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3381 (u32)sinfo->tx_bytes))
3382 goto nla_put_failure;
3383 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3384 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3385 sinfo->rx_bytes))
3386 goto nla_put_failure;
3387 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3388 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3389 sinfo->tx_bytes))
3390 goto nla_put_failure;
3391 if ((sinfo->filled & STATION_INFO_LLID) &&
3392 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3393 goto nla_put_failure;
3394 if ((sinfo->filled & STATION_INFO_PLID) &&
3395 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3396 goto nla_put_failure;
3397 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3398 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3399 sinfo->plink_state))
3400 goto nla_put_failure;
66266b3a
JL		 3401 switch (rdev->wiphy.signal_type) {
3402 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3403 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3404 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3405 sinfo->signal))
3406 goto nla_put_failure;
3407 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3408 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3409 sinfo->signal_avg))
3410 goto nla_put_failure;
66266b3a
JL		 3411 break;
3412 default:
3413 break;
3414 }
119363c7
FF		 3415 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3416 if (!nl80211_put_signal(msg, sinfo->chains,
3417 sinfo->chain_signal,
3418 NL80211_STA_INFO_CHAIN_SIGNAL))
3419 goto nla_put_failure;
3420 }
3421 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3422 if (!nl80211_put_signal(msg, sinfo->chains,
3423 sinfo->chain_signal_avg,
3424 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3425 goto nla_put_failure;
3426 }
420e7fab 3427 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3428 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3429 NL80211_STA_INFO_TX_BITRATE))
3430 goto nla_put_failure;
3431 }
3432 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3433 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3434 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3435 goto nla_put_failure;
420e7fab 3436 }
9360ffd1
DM		 3437 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3438 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3439 sinfo->rx_packets))
3440 goto nla_put_failure;
3441 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3442 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3443 sinfo->tx_packets))
3444 goto nla_put_failure;
3445 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3446 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3447 sinfo->tx_retries))
3448 goto nla_put_failure;
3449 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3450 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3451 sinfo->tx_failed))
3452 goto nla_put_failure;
3453 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3454 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3455 sinfo->beacon_loss_count))
3456 goto nla_put_failure;
3b1c5a53
MP		 3457 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3458 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3459 sinfo->local_pm))
3460 goto nla_put_failure;
3461 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3462 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3463 sinfo->peer_pm))
3464 goto nla_put_failure;
3465 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3466 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3467 sinfo->nonpeer_pm))
3468 goto nla_put_failure;
f4263c98
PS		 3469 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3470 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3471 if (!bss_param)
3472 goto nla_put_failure;
3473
9360ffd1
DM		 3474 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3475 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3476 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3477 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3478 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3479 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3480 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3481 sinfo->bss_param.dtim_period) ||
3482 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3483 sinfo->bss_param.beacon_interval))
3484 goto nla_put_failure;
f4263c98
PS		 3485
3486 nla_nest_end(msg, bss_param);
3487 }
9360ffd1
DM		 3488 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3489 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3490 sizeof(struct nl80211_sta_flag_update),
3491 &sinfo->sta_flags))
3492 goto nla_put_failure;
7eab0f64
JL		 3493 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3494 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3495 sinfo->t_offset))
3496 goto nla_put_failure;
2ec600d6 3497 nla_nest_end(msg, sinfoattr);
fd5b74dc 3498
9360ffd1
DM		 3499 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3500 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3501 sinfo->assoc_req_ies))
3502 goto nla_put_failure;
50d3dfb7 3503
fd5b74dc
JB		 3504 return genlmsg_end(msg, hdr);
3505
3506 nla_put_failure:
bc3ed28c
TG		 3507 genlmsg_cancel(msg, hdr);
3508 return -EMSGSIZE;
fd5b74dc
JB		 3509}
3510
2ec600d6 3511static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3512 struct netlink_callback *cb)
2ec600d6 3513{
2ec600d6
LCC		 3514 struct station_info sinfo;
3515 struct cfg80211_registered_device *dev;
97990a06 3516 struct wireless_dev *wdev;
2ec600d6 3517 u8 mac_addr[ETH_ALEN];
97990a06 3518 int sta_idx = cb->args[2];
2ec600d6 3519 int err;
2ec600d6 3520
97990a06 3521 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3522 if (err)
3523 return err;
bba95fef 3524
97990a06
JB		 3525 if (!wdev->netdev) {
3526 err = -EINVAL;
3527 goto out_err;
3528 }
3529
bba95fef 3530 if (!dev->ops->dump_station) {
eec60b03 3531 err = -EOPNOTSUPP;
bba95fef
JB		 3532 goto out_err;
3533 }
3534
bba95fef 3535 while (1) {
f612cedf 3536 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3537 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3538 mac_addr, &sinfo);
bba95fef
JB		 3539 if (err == -ENOENT)
3540 break;
3541 if (err)
3b85875a 3542 goto out_err;
bba95fef
JB		 3543
3544 if (nl80211_send_station(skb,
15e47304 3545 NETLINK_CB(cb->skb).portid,
bba95fef 3546 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3547 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3548 &sinfo) < 0)
3549 goto out;
3550
3551 sta_idx++;
3552 }
3553
3554
3555 out:
97990a06 3556 cb->args[2] = sta_idx;
bba95fef 3557 err = skb->len;
bba95fef 3558 out_err:
97990a06 3559 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3560
3561 return err;
2ec600d6 3562}
fd5b74dc 3563
5727ef1b
JB		 3564static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3565{
4c476991
JB		 3566 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3567 struct net_device *dev = info->user_ptr[1];
2ec600d6 3568 struct station_info sinfo;
fd5b74dc
JB		 3569 struct sk_buff *msg;
3570 u8 *mac_addr = NULL;
4c476991 3571 int err;
fd5b74dc 3572
2ec600d6 3573 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3574
3575 if (!info->attrs[NL80211_ATTR_MAC])
3576 return -EINVAL;
3577
3578 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3579
4c476991
JB		 3580 if (!rdev->ops->get_station)
3581 return -EOPNOTSUPP;
3b85875a 3582
e35e4d28 3583 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3584 if (err)
4c476991 3585 return err;
2ec600d6 3586
fd2120ca 3587 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3588 if (!msg)
4c476991 3589 return -ENOMEM;
fd5b74dc 3590
15e47304 3591 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3592 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3593 nlmsg_free(msg);
3594 return -ENOBUFS;
3595 }
3b85875a 3596
4c476991 3597 return genlmsg_reply(msg, info);
5727ef1b
JB		 3598}
3599
77ee7c89
JB		 3600int cfg80211_check_station_change(struct wiphy *wiphy,
3601 struct station_parameters *params,
3602 enum cfg80211_station_type statype)
3603{
3604 if (params->listen_interval != -1)
3605 return -EINVAL;
3606 if (params->aid)
3607 return -EINVAL;
3608
3609 /* When you run into this, adjust the code below for the new flag */
3610 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3611
3612 switch (statype) {
eef941e6
TP		 3613 case CFG80211_STA_MESH_PEER_KERNEL:
3614 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3615 /*
3616 * No ignoring the TDLS flag here -- the userspace mesh
3617 * code doesn't have the bug of including TDLS in the
3618 * mask everywhere.
3619 */
3620 if (params->sta_flags_mask &
3621 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3622 BIT(NL80211_STA_FLAG_MFP) |
3623 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3624 return -EINVAL;
3625 break;
3626 case CFG80211_STA_TDLS_PEER_SETUP:
3627 case CFG80211_STA_TDLS_PEER_ACTIVE:
3628 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3629 return -EINVAL;
3630 /* ignore since it can't change */
3631 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3632 break;
3633 default:
3634 /* disallow mesh-specific things */
3635 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3636 return -EINVAL;
3637 if (params->local_pm)
3638 return -EINVAL;
3639 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3640 return -EINVAL;
3641 }
3642
3643 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3644 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3645 /* TDLS can't be set, ... */
3646 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3647 return -EINVAL;
3648 /*
3649 * ... but don't bother the driver with it. This works around
3650 * a hostapd/wpa_supplicant issue -- it always includes the
3651 * TLDS_PEER flag in the mask even for AP mode.
3652 */
3653 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3654 }
3655
3656 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3657 /* reject other things that can't change */
3658 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3659 return -EINVAL;
3660 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3661 return -EINVAL;
3662 if (params->supported_rates)
3663 return -EINVAL;
3664 if (params->ext_capab || params->ht_capa || params->vht_capa)
3665 return -EINVAL;
3666 }
3667
3668 if (statype != CFG80211_STA_AP_CLIENT) {
3669 if (params->vlan)
3670 return -EINVAL;
3671 }
3672
3673 switch (statype) {
3674 case CFG80211_STA_AP_MLME_CLIENT:
3675 /* Use this only for authorizing/unauthorizing a station */
3676 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3677 return -EOPNOTSUPP;
3678 break;
3679 case CFG80211_STA_AP_CLIENT:
3680 /* accept only the listed bits */
3681 if (params->sta_flags_mask &
3682 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3683 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3684 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3685 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3686 BIT(NL80211_STA_FLAG_WME) |
3687 BIT(NL80211_STA_FLAG_MFP)))
3688 return -EINVAL;
3689
3690 /* but authenticated/associated only if driver handles it */
3691 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3692 params->sta_flags_mask &
3693 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3694 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3695 return -EINVAL;
3696 break;
3697 case CFG80211_STA_IBSS:
3698 case CFG80211_STA_AP_STA:
3699 /* reject any changes other than AUTHORIZED */
3700 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3701 return -EINVAL;
3702 break;
3703 case CFG80211_STA_TDLS_PEER_SETUP:
3704 /* reject any changes other than AUTHORIZED or WME */
3705 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3706 BIT(NL80211_STA_FLAG_WME)))
3707 return -EINVAL;
3708 /* force (at least) rates when authorizing */
3709 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3710 !params->supported_rates)
3711 return -EINVAL;
3712 break;
3713 case CFG80211_STA_TDLS_PEER_ACTIVE:
3714 /* reject any changes */
3715 return -EINVAL;
eef941e6 3716 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3717 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3718 return -EINVAL;
3719 break;
eef941e6 3720 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3721 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3722 return -EINVAL;
3723 break;
3724 }
3725
3726 return 0;
3727}
3728EXPORT_SYMBOL(cfg80211_check_station_change);
3729
5727ef1b 3730/*
c258d2de 3731 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3732 */
80b99899
JB		 3733static struct net_device *get_vlan(struct genl_info *info,
3734 struct cfg80211_registered_device *rdev)
5727ef1b 3735{
463d0183 3736 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3737 struct net_device *v;
3738 int ret;
3739
3740 if (!vlanattr)
3741 return NULL;
3742
3743 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3744 if (!v)
3745 return ERR_PTR(-ENODEV);
3746
3747 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3748 ret = -EINVAL;
3749 goto error;
5727ef1b 3750 }
80b99899 3751
77ee7c89
JB		 3752 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3753 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3754 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3755 ret = -EINVAL;
3756 goto error;
3757 }
3758
80b99899
JB		 3759 if (!netif_running(v)) {
3760 ret = -ENETDOWN;
3761 goto error;
3762 }
3763
3764 return v;
3765 error:
3766 dev_put(v);
3767 return ERR_PTR(ret);
5727ef1b
JB		 3768}
3769
df881293
JM		 3770static struct nla_policy
3771nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3772 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3773 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3774};
3775
ff276691
JB		 3776static int nl80211_parse_sta_wme(struct genl_info *info,
3777 struct station_parameters *params)
df881293 3778{
df881293
JM		 3779 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3780 struct nlattr *nla;
3781 int err;
3782
df881293
JM		 3783 /* parse WME attributes if present */
3784 if (!info->attrs[NL80211_ATTR_STA_WME])
3785 return 0;
3786
3787 nla = info->attrs[NL80211_ATTR_STA_WME];
3788 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3789 nl80211_sta_wme_policy);
3790 if (err)
3791 return err;
3792
3793 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3794 params->uapsd_queues = nla_get_u8(
3795 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3796 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3797 return -EINVAL;
3798
3799 if (tb[NL80211_STA_WME_MAX_SP])
3800 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3801
3802 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3803 return -EINVAL;
3804
3805 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3806
3807 return 0;
3808}
3809
ff276691
JB		 3810static int nl80211_set_station_tdls(struct genl_info *info,
3811 struct station_parameters *params)
3812{
3813 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 3814 if (info->attrs[NL80211_ATTR_PEER_AID])
3815 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 3816 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3817 params->ht_capa =
3818 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3819 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3820 params->vht_capa =
3821 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3822
3823 return nl80211_parse_sta_wme(info, params);
3824}
3825
5727ef1b
JB		 3826static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3827{
4c476991 3828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3829 struct net_device *dev = info->user_ptr[1];
5727ef1b 3830 struct station_parameters params;
77ee7c89
JB		 3831 u8 *mac_addr;
3832 int err;
5727ef1b
JB		 3833
3834 memset(&params, 0, sizeof(params));
3835
3836 params.listen_interval = -1;
3837
77ee7c89
JB		 3838 if (!rdev->ops->change_station)
3839 return -EOPNOTSUPP;
3840
5727ef1b
JB		 3841 if (info->attrs[NL80211_ATTR_STA_AID])
3842 return -EINVAL;
3843
3844 if (!info->attrs[NL80211_ATTR_MAC])
3845 return -EINVAL;
3846
3847 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3848
3849 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3850 params.supported_rates =
3851 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3852 params.supported_rates_len =
3853 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3854 }
3855
9d62a986
JM		 3856 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3857 params.capability =
3858 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3859 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3860 }
3861
3862 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3863 params.ext_capab =
3864 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3865 params.ext_capab_len =
3866 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3867 }
3868
df881293 3869 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3870 return -EINVAL;
36aedc90 3871
bdd3ae3d 3872 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3873 return -EINVAL;
3874
f8bacc21 3875 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3876 params.plink_action =
f8bacc21
JB		 3877 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3878 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3879 return -EINVAL;
3880 }
2ec600d6 3881
f8bacc21 3882 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3883 params.plink_state =
f8bacc21
JB		 3884 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3885 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3886 return -EINVAL;
3887 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3888 }
9c3990aa 3889
3b1c5a53
MP		 3890 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3891 enum nl80211_mesh_power_mode pm = nla_get_u32(
3892 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3893
3894 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3895 pm > NL80211_MESH_POWER_MAX)
3896 return -EINVAL;
3897
3898 params.local_pm = pm;
3899 }
3900
77ee7c89
JB		 3901 /* Include parameters for TDLS peer (will check later) */
3902 err = nl80211_set_station_tdls(info, &params);
3903 if (err)
3904 return err;
3905
3906 params.vlan = get_vlan(info, rdev);
3907 if (IS_ERR(params.vlan))
3908 return PTR_ERR(params.vlan);
3909
a97f4424
JB		 3910 switch (dev->ieee80211_ptr->iftype) {
3911 case NL80211_IFTYPE_AP:
3912 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3913 case NL80211_IFTYPE_P2P_GO:
074ac8df 3914 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3915 case NL80211_IFTYPE_STATION:
267335d6 3916 case NL80211_IFTYPE_ADHOC:
a97f4424 3917 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 3918 break;
3919 default:
77ee7c89
JB		 3920 err = -EOPNOTSUPP;
3921 goto out_put_vlan;
034d655e
JB		 3922 }
3923
77ee7c89 3924 /* driver will call cfg80211_check_station_change() */
e35e4d28 3925 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3926
77ee7c89 3927 out_put_vlan:
5727ef1b
JB		 3928 if (params.vlan)
3929 dev_put(params.vlan);
3b85875a 3930
5727ef1b
JB		 3931 return err;
3932}
3933
3934static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3935{
4c476991 3936 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3937 int err;
4c476991 3938 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3939 struct station_parameters params;
3940 u8 *mac_addr = NULL;
3941
3942 memset(&params, 0, sizeof(params));
3943
984c311b
JB		 3944 if (!rdev->ops->add_station)
3945 return -EOPNOTSUPP;
3946
5727ef1b
JB		 3947 if (!info->attrs[NL80211_ATTR_MAC])
3948 return -EINVAL;
3949
5727ef1b
JB		 3950 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3951 return -EINVAL;
3952
3953 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3954 return -EINVAL;
3955
5e4b6f56
JM		 3956 if (!info->attrs[NL80211_ATTR_STA_AID] &&
3957 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 3958 return -EINVAL;
3959
5727ef1b
JB		 3960 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3961 params.supported_rates =
3962 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3963 params.supported_rates_len =
3964 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3965 params.listen_interval =
3966 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3967
5e4b6f56
JM		 3968 if (info->attrs[NL80211_ATTR_STA_AID])
3969 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3970 else
3971 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
0e956c13
TLSC		 3972 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3973 return -EINVAL;
51b50fbe 3974
9d62a986
JM		 3975 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3976 params.capability =
3977 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3978 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3979 }
3980
3981 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3982 params.ext_capab =
3983 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3984 params.ext_capab_len =
3985 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3986 }
3987
36aedc90
JM		 3988 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3989 params.ht_capa =
3990 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3991
f461be3e
MP		 3992 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3993 params.vht_capa =
3994 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3995
f8bacc21 3996 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 3997 params.plink_action =
f8bacc21
JB		 3998 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3999 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4000 return -EINVAL;
4001 }
96b78dff 4002
ff276691
JB		 4003 err = nl80211_parse_sta_wme(info, &params);
4004 if (err)
4005 return err;
bdd90d5e 4006
bdd3ae3d 4007 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4008 return -EINVAL;
4009
77ee7c89
JB		 4010 /* When you run into this, adjust the code below for the new flag */
4011 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4012
bdd90d5e
JB		 4013 switch (dev->ieee80211_ptr->iftype) {
4014 case NL80211_IFTYPE_AP:
4015 case NL80211_IFTYPE_AP_VLAN:
4016 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4017 /* ignore WME attributes if iface/sta is not capable */
4018 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4019 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4020 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4021
bdd90d5e
JB		 4022 /* TDLS peers cannot be added */
4023 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 4024 return -EINVAL;
bdd90d5e
JB		 4025 /* but don't bother the driver with it */
4026 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4027
d582cffb
JB		 4028 /* allow authenticated/associated only if driver handles it */
4029 if (!(rdev->wiphy.features &
4030 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4031 params.sta_flags_mask &
4032 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4033 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4034 return -EINVAL;
4035
bdd90d5e
JB		 4036 /* must be last in here for error handling */
4037 params.vlan = get_vlan(info, rdev);
4038 if (IS_ERR(params.vlan))
4039 return PTR_ERR(params.vlan);
4040 break;
4041 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4042 /* ignore uAPSD data */
4043 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4044
d582cffb
JB		 4045 /* associated is disallowed */
4046 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4047 return -EINVAL;
bdd90d5e
JB		 4048 /* TDLS peers cannot be added */
4049 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4050 return -EINVAL;
4051 break;
4052 case NL80211_IFTYPE_STATION:
93d08f0b 4053 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4054 /* ignore uAPSD data */
4055 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4056
77ee7c89
JB		 4057 /* these are disallowed */
4058 if (params.sta_flags_mask &
4059 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4060 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4061 return -EINVAL;
bdd90d5e
JB		 4062 /* Only TDLS peers can be added */
4063 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4064 return -EINVAL;
4065 /* Can only add if TDLS ... */
4066 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4067 return -EOPNOTSUPP;
4068 /* ... with external setup is supported */
4069 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4070 return -EOPNOTSUPP;
77ee7c89
JB		 4071 /*
4072 * Older wpa_supplicant versions always mark the TDLS peer
4073 * as authorized, but it shouldn't yet be.
4074 */
4075 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4076 break;
4077 default:
4078 return -EOPNOTSUPP;
c75786c9
EP		 4079 }
4080
bdd90d5e 4081 /* be aware of params.vlan when changing code here */
5727ef1b 4082
e35e4d28 4083 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4084
5727ef1b
JB		 4085 if (params.vlan)
4086 dev_put(params.vlan);
5727ef1b
JB		 4087 return err;
4088}
4089
4090static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4091{
4c476991
JB		 4092 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4093 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4094 u8 *mac_addr = NULL;
4095
4096 if (info->attrs[NL80211_ATTR_MAC])
4097 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4098
e80cf853 4099 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4100 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4101 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4102 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4103 return -EINVAL;
5727ef1b 4104
4c476991
JB		 4105 if (!rdev->ops->del_station)
4106 return -EOPNOTSUPP;
3b85875a 4107
e35e4d28 4108 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4109}
4110
15e47304 4111static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4112 int flags, struct net_device *dev,
4113 u8 *dst, u8 *next_hop,
4114 struct mpath_info *pinfo)
4115{
4116 void *hdr;
4117 struct nlattr *pinfoattr;
4118
15e47304 4119 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4120 if (!hdr)
4121 return -1;
4122
9360ffd1
DM		 4123 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4124 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4125 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4126 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4127 goto nla_put_failure;
f5ea9120 4128
2ec600d6
LCC		 4129 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4130 if (!pinfoattr)
4131 goto nla_put_failure;
9360ffd1
DM		 4132 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4133 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4134 pinfo->frame_qlen))
4135 goto nla_put_failure;
4136 if (((pinfo->filled & MPATH_INFO_SN) &&
4137 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4138 ((pinfo->filled & MPATH_INFO_METRIC) &&
4139 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4140 pinfo->metric)) ||
4141 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4142 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4143 pinfo->exptime)) ||
4144 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4145 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4146 pinfo->flags)) ||
4147 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4148 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4149 pinfo->discovery_timeout)) ||
4150 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4151 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4152 pinfo->discovery_retries)))
4153 goto nla_put_failure;
2ec600d6
LCC		 4154
4155 nla_nest_end(msg, pinfoattr);
4156
4157 return genlmsg_end(msg, hdr);
4158
4159 nla_put_failure:
bc3ed28c
TG		 4160 genlmsg_cancel(msg, hdr);
4161 return -EMSGSIZE;
2ec600d6
LCC		 4162}
4163
4164static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4165 struct netlink_callback *cb)
2ec600d6 4166{
2ec600d6
LCC		 4167 struct mpath_info pinfo;
4168 struct cfg80211_registered_device *dev;
97990a06 4169 struct wireless_dev *wdev;
2ec600d6
LCC		 4170 u8 dst[ETH_ALEN];
4171 u8 next_hop[ETH_ALEN];
97990a06 4172 int path_idx = cb->args[2];
2ec600d6 4173 int err;
2ec600d6 4174
97990a06 4175 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4176 if (err)
4177 return err;
bba95fef
JB		 4178
4179 if (!dev->ops->dump_mpath) {
eec60b03 4180 err = -EOPNOTSUPP;
bba95fef
JB		 4181 goto out_err;
4182 }
4183
97990a06 4184 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4185 err = -EOPNOTSUPP;
0448b5fc 4186 goto out_err;
eec60b03
JM		 4187 }
4188
bba95fef 4189 while (1) {
97990a06
JB		 4190 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4191 next_hop, &pinfo);
bba95fef 4192 if (err == -ENOENT)
2ec600d6 4193 break;
bba95fef 4194 if (err)
3b85875a 4195 goto out_err;
2ec600d6 4196
15e47304 4197 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4198 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4199 wdev->netdev, dst, next_hop,
bba95fef
JB		 4200 &pinfo) < 0)
4201 goto out;
2ec600d6 4202
bba95fef 4203 path_idx++;
2ec600d6 4204 }
2ec600d6 4205
2ec600d6 4206
bba95fef 4207 out:
97990a06 4208 cb->args[2] = path_idx;
bba95fef 4209 err = skb->len;
bba95fef 4210 out_err:
97990a06 4211 nl80211_finish_wdev_dump(dev);
bba95fef 4212 return err;
2ec600d6
LCC		 4213}
4214
4215static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4216{
4c476991 4217 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4218 int err;
4c476991 4219 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4220 struct mpath_info pinfo;
4221 struct sk_buff *msg;
4222 u8 *dst = NULL;
4223 u8 next_hop[ETH_ALEN];
4224
4225 memset(&pinfo, 0, sizeof(pinfo));
4226
4227 if (!info->attrs[NL80211_ATTR_MAC])
4228 return -EINVAL;
4229
4230 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4231
4c476991
JB		 4232 if (!rdev->ops->get_mpath)
4233 return -EOPNOTSUPP;
2ec600d6 4234
4c476991
JB		 4235 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4236 return -EOPNOTSUPP;
eec60b03 4237
e35e4d28 4238 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4239 if (err)
4c476991 4240 return err;
2ec600d6 4241
fd2120ca 4242 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4243 if (!msg)
4c476991 4244 return -ENOMEM;
2ec600d6 4245
15e47304 4246 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4247 dev, dst, next_hop, &pinfo) < 0) {
4248 nlmsg_free(msg);
4249 return -ENOBUFS;
4250 }
3b85875a 4251
4c476991 4252 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4253}
4254
4255static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4256{
4c476991
JB		 4257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4258 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4259 u8 *dst = NULL;
4260 u8 *next_hop = NULL;
4261
4262 if (!info->attrs[NL80211_ATTR_MAC])
4263 return -EINVAL;
4264
4265 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4266 return -EINVAL;
4267
4268 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4269 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4270
4c476991
JB		 4271 if (!rdev->ops->change_mpath)
4272 return -EOPNOTSUPP;
35a8efe1 4273
4c476991
JB		 4274 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4275 return -EOPNOTSUPP;
2ec600d6 4276
e35e4d28 4277 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4278}
4c476991 4279
2ec600d6
LCC		 4280static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4281{
4c476991
JB		 4282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4283 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4284 u8 *dst = NULL;
4285 u8 *next_hop = NULL;
4286
4287 if (!info->attrs[NL80211_ATTR_MAC])
4288 return -EINVAL;
4289
4290 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4291 return -EINVAL;
4292
4293 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4294 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4295
4c476991
JB		 4296 if (!rdev->ops->add_mpath)
4297 return -EOPNOTSUPP;
35a8efe1 4298
4c476991
JB		 4299 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4300 return -EOPNOTSUPP;
2ec600d6 4301
e35e4d28 4302 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4303}
4304
4305static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4306{
4c476991
JB		 4307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4308 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4309 u8 *dst = NULL;
4310
4311 if (info->attrs[NL80211_ATTR_MAC])
4312 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4313
4c476991
JB		 4314 if (!rdev->ops->del_mpath)
4315 return -EOPNOTSUPP;
3b85875a 4316
e35e4d28 4317 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4318}
4319
9f1ba906
JM		 4320static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4321{
4c476991
JB		 4322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4323 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4324 struct bss_parameters params;
4325
4326 memset(&params, 0, sizeof(params));
4327 /* default to not changing parameters */
4328 params.use_cts_prot = -1;
4329 params.use_short_preamble = -1;
4330 params.use_short_slot_time = -1;
fd8aaaf3 4331 params.ap_isolate = -1;
50b12f59 4332 params.ht_opmode = -1;
53cabad7
JB		 4333 params.p2p_ctwindow = -1;
4334 params.p2p_opp_ps = -1;
9f1ba906
JM		 4335
4336 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4337 params.use_cts_prot =
4338 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4339 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4340 params.use_short_preamble =
4341 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4342 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4343 params.use_short_slot_time =
4344 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4345 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4346 params.basic_rates =
4347 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4348 params.basic_rates_len =
4349 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4350 }
fd8aaaf3
FF		 4351 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4352 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4353 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4354 params.ht_opmode =
4355 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4356
53cabad7
JB		 4357 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4358 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4359 return -EINVAL;
4360 params.p2p_ctwindow =
4361 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4362 if (params.p2p_ctwindow < 0)
4363 return -EINVAL;
4364 if (params.p2p_ctwindow != 0 &&
4365 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4366 return -EINVAL;
4367 }
4368
4369 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4370 u8 tmp;
4371
4372 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4373 return -EINVAL;
4374 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4375 if (tmp > 1)
4376 return -EINVAL;
4377 params.p2p_opp_ps = tmp;
4378 if (params.p2p_opp_ps &&
4379 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4380 return -EINVAL;
4381 }
4382
4c476991
JB		 4383 if (!rdev->ops->change_bss)
4384 return -EOPNOTSUPP;
9f1ba906 4385
074ac8df 4386 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4387 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4388 return -EOPNOTSUPP;
3b85875a 4389
e35e4d28 4390 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4391}
4392
b54452b0 4393static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4394 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4395 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4396 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4397 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4398 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4399 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4400};
4401
4402static int parse_reg_rule(struct nlattr *tb[],
4403 struct ieee80211_reg_rule *reg_rule)
4404{
4405 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4406 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4407
4408 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4409 return -EINVAL;
4410 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4411 return -EINVAL;
4412 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4413 return -EINVAL;
4414 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4415 return -EINVAL;
4416 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4417 return -EINVAL;
4418
4419 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4420
4421 freq_range->start_freq_khz =
4422 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4423 freq_range->end_freq_khz =
4424 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4425 freq_range->max_bandwidth_khz =
4426 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4427
4428 power_rule->max_eirp =
4429 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4430
4431 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4432 power_rule->max_antenna_gain =
4433 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4434
4435 return 0;
4436}
4437
4438static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4439{
4440 int r;
4441 char *data = NULL;
57b5ce07 4442 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4443
80778f18
LR		 4444 /*
4445 * You should only get this when cfg80211 hasn't yet initialized
4446 * completely when built-in to the kernel right between the time
4447 * window between nl80211_init() and regulatory_init(), if that is
4448 * even possible.
4449 */
458f4f9e 4450 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4451 return -EINPROGRESS;
80778f18 4452
fe33eb39
LR		 4453 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4454 return -EINVAL;
b2e1b302
LR		 4455
4456 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4457
57b5ce07
LR		 4458 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4459 user_reg_hint_type =
4460 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4461 else
4462 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4463
4464 switch (user_reg_hint_type) {
4465 case NL80211_USER_REG_HINT_USER:
4466 case NL80211_USER_REG_HINT_CELL_BASE:
4467 break;
4468 default:
4469 return -EINVAL;
4470 }
4471
4472 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4473
b2e1b302
LR		 4474 return r;
4475}
4476
24bdd9f4 4477static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4478 struct genl_info *info)
93da9cc1 4479{
4c476991 4480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4481 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4482 struct wireless_dev *wdev = dev->ieee80211_ptr;
4483 struct mesh_config cur_params;
4484 int err = 0;
93da9cc1 4485 void *hdr;
4486 struct nlattr *pinfoattr;
4487 struct sk_buff *msg;
4488
29cbe68c
JB		 4489 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4490 return -EOPNOTSUPP;
4491
24bdd9f4 4492 if (!rdev->ops->get_mesh_config)
4c476991 4493 return -EOPNOTSUPP;
f3f92586 4494
29cbe68c
JB		 4495 wdev_lock(wdev);
4496 /* If not connected, get default parameters */
4497 if (!wdev->mesh_id_len)
4498 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4499 else
e35e4d28 4500 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4501 wdev_unlock(wdev);
4502
93da9cc1 4503 if (err)
4c476991 4504 return err;
93da9cc1 4505
4506 /* Draw up a netlink message to send back */
fd2120ca 4507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4508 if (!msg)
4509 return -ENOMEM;
15e47304 4510 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4511 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4512 if (!hdr)
efe1cf0c 4513 goto out;
24bdd9f4 4514 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4515 if (!pinfoattr)
4516 goto nla_put_failure;
9360ffd1
DM		 4517 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4518 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4519 cur_params.dot11MeshRetryTimeout) ||
4520 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4521 cur_params.dot11MeshConfirmTimeout) ||
4522 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4523 cur_params.dot11MeshHoldingTimeout) ||
4524 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4525 cur_params.dot11MeshMaxPeerLinks) ||
4526 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4527 cur_params.dot11MeshMaxRetries) ||
4528 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4529 cur_params.dot11MeshTTL) ||
4530 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4531 cur_params.element_ttl) ||
4532 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4533 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4534 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4535 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4536 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4537 cur_params.dot11MeshHWMPmaxPREQretries) ||
4538 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4539 cur_params.path_refresh_time) ||
4540 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4541 cur_params.min_discovery_timeout) ||
4542 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4543 cur_params.dot11MeshHWMPactivePathTimeout) ||
4544 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4545 cur_params.dot11MeshHWMPpreqMinInterval) ||
4546 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4547 cur_params.dot11MeshHWMPperrMinInterval) ||
4548 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4549 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4550 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4551 cur_params.dot11MeshHWMPRootMode) ||
4552 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4553 cur_params.dot11MeshHWMPRannInterval) ||
4554 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4555 cur_params.dot11MeshGateAnnouncementProtocol) ||
4556 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4557 cur_params.dot11MeshForwarding) ||
4558 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4559 cur_params.rssi_threshold) ||
4560 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4561 cur_params.ht_opmode) ||
4562 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4563 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4564 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4565 cur_params.dot11MeshHWMProotInterval) ||
4566 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4567 cur_params.dot11MeshHWMPconfirmationInterval) ||
4568 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4569 cur_params.power_mode) ||
4570 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4571 cur_params.dot11MeshAwakeWindowDuration))
9360ffd1 4572 goto nla_put_failure;
93da9cc1 4573 nla_nest_end(msg, pinfoattr);
4574 genlmsg_end(msg, hdr);
4c476991 4575 return genlmsg_reply(msg, info);
93da9cc1 4576
3b85875a 4577 nla_put_failure:
93da9cc1 4578 genlmsg_cancel(msg, hdr);
efe1cf0c 4579 out:
d080e275 4580 nlmsg_free(msg);
4c476991 4581 return -ENOBUFS;
93da9cc1 4582}
4583
b54452b0 4584static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4585 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4586 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4587 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4588 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4589 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4590 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4591 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4592 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4593 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4594 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4595 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4596 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4597 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4598 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4599 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4600 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4601 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4602 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4603 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4604 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4605 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4606 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4607 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4608 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4609 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4610 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4611 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
93da9cc1 4612};
4613
c80d545d
JC		 4614static const struct nla_policy
4615 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4616 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4617 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4618 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4619 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4620 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4621 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4622 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4623 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4624 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4625};
4626
24bdd9f4 4627static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4628 struct mesh_config *cfg,
4629 u32 *mask_out)
93da9cc1 4630{
93da9cc1 4631 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4632 u32 mask = 0;
93da9cc1 4633
ea54fba2
MP		 4634#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4635do { \
4636 if (tb[attr]) { \
4637 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4638 return -EINVAL; \
4639 cfg->param = fn(tb[attr]); \
4640 mask |= (1 << (attr - 1)); \
4641 } \
4642} while (0)
bd90fdcc
JB		 4643
4644
24bdd9f4 4645 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4646 return -EINVAL;
4647 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4648 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4649 nl80211_meshconf_params_policy))
93da9cc1 4650 return -EINVAL;
4651
93da9cc1 4652 /* This makes sure that there aren't more than 32 mesh config
4653 * parameters (otherwise our bitfield scheme would not work.) */
4654 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4655
4656 /* Fill in the params struct */
ea54fba2 4657 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4658 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4659 nla_get_u16);
ea54fba2 4660 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4661 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4662 nla_get_u16);
ea54fba2 4663 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4664 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4665 nla_get_u16);
ea54fba2 4666 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4667 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4668 nla_get_u16);
ea54fba2 4669 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4670 mask, NL80211_MESHCONF_MAX_RETRIES,
4671 nla_get_u8);
ea54fba2 4672 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4673 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4674 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4675 mask, NL80211_MESHCONF_ELEMENT_TTL,
4676 nla_get_u8);
ea54fba2 4677 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4678 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4679 nla_get_u8);
ea54fba2
MP		 4680 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4681 1, 255, mask,
a4f606ea
CYY		 4682 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4683 nla_get_u32);
ea54fba2 4684 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4685 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4686 nla_get_u8);
ea54fba2 4687 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4688 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4689 nla_get_u32);
ea54fba2 4690 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4691 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4692 nla_get_u16);
ea54fba2
MP		 4693 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4694 1, 65535, mask,
a4f606ea
CYY		 4695 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4696 nla_get_u32);
93da9cc1 4697 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4698 1, 65535, mask,
4699 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4700 nla_get_u16);
dca7e943 4701 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4702 1, 65535, mask,
4703 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4704 nla_get_u16);
93da9cc1 4705 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4706 dot11MeshHWMPnetDiameterTraversalTime,
4707 1, 65535, mask,
a4f606ea
CYY		 4708 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4709 nla_get_u16);
ea54fba2
MP		 4710 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4711 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4712 nla_get_u8);
4713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4714 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4715 nla_get_u16);
63c5723b 4716 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4717 dot11MeshGateAnnouncementProtocol, 0, 1,
4718 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4719 nla_get_u8);
ea54fba2 4720 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4721 mask, NL80211_MESHCONF_FORWARDING,
4722 nla_get_u8);
ea54fba2 4723 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4724 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4725 nla_get_u32);
ea54fba2 4726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4727 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4728 nla_get_u16);
4729 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4730 1, 65535, mask,
ac1073a6
CYY		 4731 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4732 nla_get_u32);
ea54fba2 4733 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4734 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4735 nla_get_u16);
4736 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4737 dot11MeshHWMPconfirmationInterval,
4738 1, 65535, mask,
728b19e5 4739 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4740 nla_get_u16);
3b1c5a53
MP		 4741 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4742 NL80211_MESH_POWER_ACTIVE,
4743 NL80211_MESH_POWER_MAX,
4744 mask, NL80211_MESHCONF_POWER_MODE,
4745 nla_get_u32);
4746 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4747 0, 65535, mask,
4748 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
bd90fdcc
JB		 4749 if (mask_out)
4750 *mask_out = mask;
c80d545d 4751
bd90fdcc
JB		 4752 return 0;
4753
4754#undef FILL_IN_MESH_PARAM_IF_SET
4755}
4756
c80d545d
JC		 4757static int nl80211_parse_mesh_setup(struct genl_info *info,
4758 struct mesh_setup *setup)
4759{
bb2798d4 4760 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4761 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4762
4763 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4764 return -EINVAL;
4765 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4766 info->attrs[NL80211_ATTR_MESH_SETUP],
4767 nl80211_mesh_setup_params_policy))
4768 return -EINVAL;
4769
d299a1f2
JC		 4770 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4771 setup->sync_method =
4772 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4773 IEEE80211_SYNC_METHOD_VENDOR :
4774 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4775
c80d545d
JC		 4776 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4777 setup->path_sel_proto =
4778 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4779 IEEE80211_PATH_PROTOCOL_VENDOR :
4780 IEEE80211_PATH_PROTOCOL_HWMP;
4781
4782 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4783 setup->path_metric =
4784 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4785 IEEE80211_PATH_METRIC_VENDOR :
4786 IEEE80211_PATH_METRIC_AIRTIME;
4787
581a8b0f
JC		 4788
4789 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4790 struct nlattr *ieattr =
581a8b0f 4791 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4792 if (!is_valid_ie_attr(ieattr))
4793 return -EINVAL;
581a8b0f
JC		 4794 setup->ie = nla_data(ieattr);
4795 setup->ie_len = nla_len(ieattr);
c80d545d 4796 }
bb2798d4
TP		 4797 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4798 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4799 return -EINVAL;
4800 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 4801 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4802 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 4803 if (setup->is_secure)
4804 setup->user_mpm = true;
c80d545d 4805
6e16d90b
CT		 4806 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4807 if (!setup->user_mpm)
4808 return -EINVAL;
4809 setup->auth_id =
4810 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4811 }
4812
c80d545d
JC		 4813 return 0;
4814}
4815
24bdd9f4 4816static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4817 struct genl_info *info)
bd90fdcc
JB		 4818{
4819 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4820 struct net_device *dev = info->user_ptr[1];
29cbe68c 4821 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4822 struct mesh_config cfg;
4823 u32 mask;
4824 int err;
4825
29cbe68c
JB		 4826 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4827 return -EOPNOTSUPP;
4828
24bdd9f4 4829 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4830 return -EOPNOTSUPP;
4831
24bdd9f4 4832 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4833 if (err)
4834 return err;
4835
29cbe68c
JB		 4836 wdev_lock(wdev);
4837 if (!wdev->mesh_id_len)
4838 err = -ENOLINK;
4839
4840 if (!err)
e35e4d28 4841 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4842
4843 wdev_unlock(wdev);
4844
4845 return err;
93da9cc1 4846}
4847
f130347c
LR		 4848static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4849{
458f4f9e 4850 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4851 struct sk_buff *msg;
4852 void *hdr = NULL;
4853 struct nlattr *nl_reg_rules;
4854 unsigned int i;
f130347c
LR		 4855
4856 if (!cfg80211_regdomain)
5fe231e8 4857 return -EINVAL;
f130347c 4858
fd2120ca 4859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 4860 if (!msg)
4861 return -ENOBUFS;
f130347c 4862
15e47304 4863 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4864 NL80211_CMD_GET_REG);
4865 if (!hdr)
efe1cf0c 4866 goto put_failure;
f130347c 4867
57b5ce07
LR		 4868 if (reg_last_request_cell_base() &&
4869 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4870 NL80211_USER_REG_HINT_CELL_BASE))
4871 goto nla_put_failure;
4872
458f4f9e
JB		 4873 rcu_read_lock();
4874 regdom = rcu_dereference(cfg80211_regdomain);
4875
4876 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4877 (regdom->dfs_region &&
4878 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4879 goto nla_put_failure_rcu;
4880
f130347c
LR		 4881 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4882 if (!nl_reg_rules)
458f4f9e 4883 goto nla_put_failure_rcu;
f130347c 4884
458f4f9e 4885 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4886 struct nlattr *nl_reg_rule;
4887 const struct ieee80211_reg_rule *reg_rule;
4888 const struct ieee80211_freq_range *freq_range;
4889 const struct ieee80211_power_rule *power_rule;
4890
458f4f9e 4891 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4892 freq_range = &reg_rule->freq_range;
4893 power_rule = &reg_rule->power_rule;
4894
4895 nl_reg_rule = nla_nest_start(msg, i);
4896 if (!nl_reg_rule)
458f4f9e 4897 goto nla_put_failure_rcu;
f130347c 4898
9360ffd1
DM		 4899 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4900 reg_rule->flags) ||
4901 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4902 freq_range->start_freq_khz) ||
4903 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4904 freq_range->end_freq_khz) ||
4905 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4906 freq_range->max_bandwidth_khz) ||
4907 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4908 power_rule->max_antenna_gain) ||
4909 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4910 power_rule->max_eirp))
458f4f9e 4911 goto nla_put_failure_rcu;
f130347c
LR		 4912
4913 nla_nest_end(msg, nl_reg_rule);
4914 }
458f4f9e 4915 rcu_read_unlock();
f130347c
LR		 4916
4917 nla_nest_end(msg, nl_reg_rules);
4918
4919 genlmsg_end(msg, hdr);
5fe231e8 4920 return genlmsg_reply(msg, info);
f130347c 4921
458f4f9e
JB		 4922nla_put_failure_rcu:
4923 rcu_read_unlock();
f130347c
LR		 4924nla_put_failure:
4925 genlmsg_cancel(msg, hdr);
efe1cf0c 4926put_failure:
d080e275 4927 nlmsg_free(msg);
5fe231e8 4928 return -EMSGSIZE;
f130347c
LR		 4929}
4930
b2e1b302
LR		 4931static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4932{
4933 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4934 struct nlattr *nl_reg_rule;
4935 char *alpha2 = NULL;
4936 int rem_reg_rules = 0, r = 0;
4937 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4938 u8 dfs_region = 0;
b2e1b302
LR		 4939 struct ieee80211_regdomain *rd = NULL;
4940
4941 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4942 return -EINVAL;
4943
4944 if (!info->attrs[NL80211_ATTR_REG_RULES])
4945 return -EINVAL;
4946
4947 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4948
8b60b078
LR		 4949 if (info->attrs[NL80211_ATTR_DFS_REGION])
4950 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4951
b2e1b302 4952 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4953 rem_reg_rules) {
b2e1b302
LR		 4954 num_rules++;
4955 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4956 return -EINVAL;
b2e1b302
LR		 4957 }
4958
b2e1b302 4959 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4960 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4961
4962 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4963 if (!rd)
4964 return -ENOMEM;
b2e1b302
LR		 4965
4966 rd->n_reg_rules = num_rules;
4967 rd->alpha2[0] = alpha2[0];
4968 rd->alpha2[1] = alpha2[1];
4969
8b60b078
LR		 4970 /*
4971 * Disable DFS master mode if the DFS region was
4972 * not supported or known on this kernel.
4973 */
4974 if (reg_supported_dfs_region(dfs_region))
4975 rd->dfs_region = dfs_region;
4976
b2e1b302 4977 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4978 rem_reg_rules) {
b2e1b302 4979 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4980 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4981 reg_rule_policy);
b2e1b302
LR		 4982 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4983 if (r)
4984 goto bad_reg;
4985
4986 rule_idx++;
4987
d0e18f83
LR		 4988 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4989 r = -EINVAL;
b2e1b302 4990 goto bad_reg;
d0e18f83 4991 }
b2e1b302
LR		 4992 }
4993
b2e1b302 4994 r = set_regdom(rd);
6913b49a 4995 /* set_regdom took ownership */
1a919318 4996 rd = NULL;
b2e1b302 4997
d2372b31 4998 bad_reg:
b2e1b302 4999 kfree(rd);
d0e18f83 5000 return r;
b2e1b302
LR		 5001}
5002
83f5e2cf
JB		 5003static int validate_scan_freqs(struct nlattr *freqs)
5004{
5005 struct nlattr *attr1, *attr2;
5006 int n_channels = 0, tmp1, tmp2;
5007
5008 nla_for_each_nested(attr1, freqs, tmp1) {
5009 n_channels++;
5010 /*
5011 * Some hardware has a limited channel list for
5012 * scanning, and it is pretty much nonsensical
5013 * to scan for a channel twice, so disallow that
5014 * and don't require drivers to check that the
5015 * channel list they get isn't longer than what
5016 * they can scan, as long as they can scan all
5017 * the channels they registered at once.
5018 */
5019 nla_for_each_nested(attr2, freqs, tmp2)
5020 if (attr1 != attr2 &&
5021 nla_get_u32(attr1) == nla_get_u32(attr2))
5022 return 0;
5023 }
5024
5025 return n_channels;
5026}
5027
2a519311
JB		 5028static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5029{
4c476991 5030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5031 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5032 struct cfg80211_scan_request *request;
2a519311
JB		 5033 struct nlattr *attr;
5034 struct wiphy *wiphy;
83f5e2cf 5035 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5036 size_t ie_len;
2a519311 5037
f4a11bb0
JB		 5038 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5039 return -EINVAL;
5040
79c97e97 5041 wiphy = &rdev->wiphy;
2a519311 5042
4c476991
JB		 5043 if (!rdev->ops->scan)
5044 return -EOPNOTSUPP;
2a519311 5045
f9f47529
JB		 5046 if (rdev->scan_req) {
5047 err = -EBUSY;
5048 goto unlock;
5049 }
2a519311
JB		 5050
5051 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5052 n_channels = validate_scan_freqs(
5053 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5054 if (!n_channels) {
5055 err = -EINVAL;
5056 goto unlock;
5057 }
2a519311 5058 } else {
34850ab2 5059 enum ieee80211_band band;
83f5e2cf
JB		 5060 n_channels = 0;
5061
2a519311
JB		 5062 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5063 if (wiphy->bands[band])
5064 n_channels += wiphy->bands[band]->n_channels;
5065 }
5066
5067 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5068 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5069 n_ssids++;
5070
f9f47529
JB		 5071 if (n_ssids > wiphy->max_scan_ssids) {
5072 err = -EINVAL;
5073 goto unlock;
5074 }
2a519311 5075
70692ad2
JM		 5076 if (info->attrs[NL80211_ATTR_IE])
5077 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5078 else
5079 ie_len = 0;
5080
f9f47529
JB		 5081 if (ie_len > wiphy->max_scan_ie_len) {
5082 err = -EINVAL;
5083 goto unlock;
5084 }
18a83659 5085
2a519311 5086 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5087 + sizeof(*request->ssids) * n_ssids
5088 + sizeof(*request->channels) * n_channels
70692ad2 5089 + ie_len, GFP_KERNEL);
f9f47529
JB		 5090 if (!request) {
5091 err = -ENOMEM;
5092 goto unlock;
5093 }
2a519311 5094
2a519311 5095 if (n_ssids)
5ba63533 5096 request->ssids = (void *)&request->channels[n_channels];
2a519311 5097 request->n_ssids = n_ssids;
70692ad2
JM		 5098 if (ie_len) {
5099 if (request->ssids)
5100 request->ie = (void *)(request->ssids + n_ssids);
5101 else
5102 request->ie = (void *)(request->channels + n_channels);
5103 }
2a519311 5104
584991dc 5105 i = 0;
2a519311
JB		 5106 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5107 /* user specified, bail out if channel not found */
2a519311 5108 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5109 struct ieee80211_channel *chan;
5110
5111 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5112
5113 if (!chan) {
2a519311
JB		 5114 err = -EINVAL;
5115 goto out_free;
5116 }
584991dc
JB		 5117
5118 /* ignore disabled channels */
5119 if (chan->flags & IEEE80211_CHAN_DISABLED)
5120 continue;
5121
5122 request->channels[i] = chan;
2a519311
JB		 5123 i++;
5124 }
5125 } else {
34850ab2
JB		 5126 enum ieee80211_band band;
5127
2a519311 5128 /* all channels */
2a519311
JB		 5129 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5130 int j;
5131 if (!wiphy->bands[band])
5132 continue;
5133 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5134 struct ieee80211_channel *chan;
5135
5136 chan = &wiphy->bands[band]->channels[j];
5137
5138 if (chan->flags & IEEE80211_CHAN_DISABLED)
5139 continue;
5140
5141 request->channels[i] = chan;
2a519311
JB		 5142 i++;
5143 }
5144 }
5145 }
5146
584991dc
JB		 5147 if (!i) {
5148 err = -EINVAL;
5149 goto out_free;
5150 }
5151
5152 request->n_channels = i;
5153
2a519311
JB		 5154 i = 0;
5155 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5156 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5157 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5158 err = -EINVAL;
5159 goto out_free;
5160 }
57a27e1d 5161 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5162 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5163 i++;
5164 }
5165 }
5166
70692ad2
JM		 5167 if (info->attrs[NL80211_ATTR_IE]) {
5168 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5169 memcpy((void *)request->ie,
5170 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5171 request->ie_len);
5172 }
5173
34850ab2 5174 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5175 if (wiphy->bands[i])
5176 request->rates[i] =
5177 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5178
5179 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5180 nla_for_each_nested(attr,
5181 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5182 tmp) {
5183 enum ieee80211_band band = nla_type(attr);
5184
84404623 5185 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5186 err = -EINVAL;
5187 goto out_free;
5188 }
5189 err = ieee80211_get_ratemask(wiphy->bands[band],
5190 nla_data(attr),
5191 nla_len(attr),
5192 &request->rates[band]);
5193 if (err)
5194 goto out_free;
5195 }
5196 }
5197
46856bbf 5198 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5199 request->flags = nla_get_u32(
5200 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5201 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5202 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5203 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5204 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5205 err = -EOPNOTSUPP;
5206 goto out_free;
5207 }
5208 }
ed473771 5209
e9f935e3
RM		 5210 request->no_cck =
5211 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5212
fd014284 5213 request->wdev = wdev;
79c97e97 5214 request->wiphy = &rdev->wiphy;
15d6030b 5215 request->scan_start = jiffies;
2a519311 5216
79c97e97 5217 rdev->scan_req = request;
e35e4d28 5218 err = rdev_scan(rdev, request);
2a519311 5219
463d0183 5220 if (!err) {
fd014284
JB		 5221 nl80211_send_scan_start(rdev, wdev);
5222 if (wdev->netdev)
5223 dev_hold(wdev->netdev);
4c476991 5224 } else {
2a519311 5225 out_free:
79c97e97 5226 rdev->scan_req = NULL;
2a519311
JB		 5227 kfree(request);
5228 }
3b85875a 5229
f9f47529 5230 unlock:
2a519311
JB		 5231 return err;
5232}
5233
807f8a8c
LC		 5234static int nl80211_start_sched_scan(struct sk_buff *skb,
5235 struct genl_info *info)
5236{
5237 struct cfg80211_sched_scan_request *request;
5238 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5239 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5240 struct nlattr *attr;
5241 struct wiphy *wiphy;
a1f1c21c 5242 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5243 u32 interval;
807f8a8c
LC		 5244 enum ieee80211_band band;
5245 size_t ie_len;
a1f1c21c 5246 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5247
5248 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5249 !rdev->ops->sched_scan_start)
5250 return -EOPNOTSUPP;
5251
5252 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5253 return -EINVAL;
5254
bbe6ad6d
LC		 5255 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5256 return -EINVAL;
5257
5258 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5259 if (interval == 0)
5260 return -EINVAL;
5261
807f8a8c
LC		 5262 wiphy = &rdev->wiphy;
5263
5264 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5265 n_channels = validate_scan_freqs(
5266 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5267 if (!n_channels)
5268 return -EINVAL;
5269 } else {
5270 n_channels = 0;
5271
5272 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5273 if (wiphy->bands[band])
5274 n_channels += wiphy->bands[band]->n_channels;
5275 }
5276
5277 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5278 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5279 tmp)
5280 n_ssids++;
5281
93b6aa69 5282 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5283 return -EINVAL;
5284
a1f1c21c
LC		 5285 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5286 nla_for_each_nested(attr,
5287 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5288 tmp)
5289 n_match_sets++;
5290
5291 if (n_match_sets > wiphy->max_match_sets)
5292 return -EINVAL;
5293
807f8a8c
LC		 5294 if (info->attrs[NL80211_ATTR_IE])
5295 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5296 else
5297 ie_len = 0;
5298
5a865bad 5299 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5300 return -EINVAL;
5301
c10841ca
LC		 5302 if (rdev->sched_scan_req) {
5303 err = -EINPROGRESS;
5304 goto out;
5305 }
5306
807f8a8c 5307 request = kzalloc(sizeof(*request)
a2cd43c5 5308 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5309 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5310 + sizeof(*request->channels) * n_channels
807f8a8c 5311 + ie_len, GFP_KERNEL);
c10841ca
LC		 5312 if (!request) {
5313 err = -ENOMEM;
5314 goto out;
5315 }
807f8a8c
LC		 5316
5317 if (n_ssids)
5318 request->ssids = (void *)&request->channels[n_channels];
5319 request->n_ssids = n_ssids;
5320 if (ie_len) {
5321 if (request->ssids)
5322 request->ie = (void *)(request->ssids + n_ssids);
5323 else
5324 request->ie = (void *)(request->channels + n_channels);
5325 }
5326
a1f1c21c
LC		 5327 if (n_match_sets) {
5328 if (request->ie)
5329 request->match_sets = (void *)(request->ie + ie_len);
5330 else if (request->ssids)
5331 request->match_sets =
5332 (void *)(request->ssids + n_ssids);
5333 else
5334 request->match_sets =
5335 (void *)(request->channels + n_channels);
5336 }
5337 request->n_match_sets = n_match_sets;
5338
807f8a8c
LC		 5339 i = 0;
5340 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5341 /* user specified, bail out if channel not found */
5342 nla_for_each_nested(attr,
5343 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5344 tmp) {
5345 struct ieee80211_channel *chan;
5346
5347 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5348
5349 if (!chan) {
5350 err = -EINVAL;
5351 goto out_free;
5352 }
5353
5354 /* ignore disabled channels */
5355 if (chan->flags & IEEE80211_CHAN_DISABLED)
5356 continue;
5357
5358 request->channels[i] = chan;
5359 i++;
5360 }
5361 } else {
5362 /* all channels */
5363 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5364 int j;
5365 if (!wiphy->bands[band])
5366 continue;
5367 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5368 struct ieee80211_channel *chan;
5369
5370 chan = &wiphy->bands[band]->channels[j];
5371
5372 if (chan->flags & IEEE80211_CHAN_DISABLED)
5373 continue;
5374
5375 request->channels[i] = chan;
5376 i++;
5377 }
5378 }
5379 }
5380
5381 if (!i) {
5382 err = -EINVAL;
5383 goto out_free;
5384 }
5385
5386 request->n_channels = i;
5387
5388 i = 0;
5389 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5390 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5391 tmp) {
57a27e1d 5392 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5393 err = -EINVAL;
5394 goto out_free;
5395 }
57a27e1d 5396 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5397 memcpy(request->ssids[i].ssid, nla_data(attr),
5398 nla_len(attr));
807f8a8c
LC		 5399 i++;
5400 }
5401 }
5402
a1f1c21c
LC		 5403 i = 0;
5404 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5405 nla_for_each_nested(attr,
5406 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5407 tmp) {
88e920b4 5408 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5409
5410 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5411 nla_data(attr), nla_len(attr),
5412 nl80211_match_policy);
4a4ab0d7 5413 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5414 if (ssid) {
5415 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5416 err = -EINVAL;
5417 goto out_free;
5418 }
5419 memcpy(request->match_sets[i].ssid.ssid,
5420 nla_data(ssid), nla_len(ssid));
5421 request->match_sets[i].ssid.ssid_len =
5422 nla_len(ssid);
5423 }
88e920b4
TP		 5424 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5425 if (rssi)
5426 request->rssi_thold = nla_get_u32(rssi);
5427 else
5428 request->rssi_thold =
5429 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5430 i++;
5431 }
5432 }
5433
807f8a8c
LC		 5434 if (info->attrs[NL80211_ATTR_IE]) {
5435 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5436 memcpy((void *)request->ie,
5437 nla_data(info->attrs[NL80211_ATTR_IE]),
5438 request->ie_len);
5439 }
5440
46856bbf 5441 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5442 request->flags = nla_get_u32(
5443 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5444 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5445 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5446 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5447 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5448 err = -EOPNOTSUPP;
5449 goto out_free;
5450 }
5451 }
ed473771 5452
807f8a8c
LC		 5453 request->dev = dev;
5454 request->wiphy = &rdev->wiphy;
bbe6ad6d 5455 request->interval = interval;
15d6030b 5456 request->scan_start = jiffies;
807f8a8c 5457
e35e4d28 5458 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5459 if (!err) {
5460 rdev->sched_scan_req = request;
5461 nl80211_send_sched_scan(rdev, dev,
5462 NL80211_CMD_START_SCHED_SCAN);
5463 goto out;
5464 }
5465
5466out_free:
5467 kfree(request);
5468out:
5469 return err;
5470}
5471
5472static int nl80211_stop_sched_scan(struct sk_buff *skb,
5473 struct genl_info *info)
5474{
5475 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5476
5477 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5478 !rdev->ops->sched_scan_stop)
5479 return -EOPNOTSUPP;
5480
5fe231e8 5481 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5482}
5483
04f39047
SW		 5484static int nl80211_start_radar_detection(struct sk_buff *skb,
5485 struct genl_info *info)
5486{
5487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5488 struct net_device *dev = info->user_ptr[1];
5489 struct wireless_dev *wdev = dev->ieee80211_ptr;
5490 struct cfg80211_chan_def chandef;
5491 int err;
5492
5493 err = nl80211_parse_chandef(rdev, info, &chandef);
5494 if (err)
5495 return err;
5496
5497 if (wdev->cac_started)
5498 return -EBUSY;
5499
5500 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5501 if (err < 0)
5502 return err;
5503
5504 if (err == 0)
5505 return -EINVAL;
5506
5507 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5508 return -EINVAL;
5509
5510 if (!rdev->ops->start_radar_detection)
5511 return -EOPNOTSUPP;
5512
04f39047
SW		 5513 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5514 chandef.chan, CHAN_MODE_SHARED,
5515 BIT(chandef.width));
5516 if (err)
5fe231e8 5517 return err;
04f39047
SW		 5518
5519 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5520 if (!err) {
5521 wdev->channel = chandef.chan;
5522 wdev->cac_started = true;
5523 wdev->cac_start_time = jiffies;
5524 }
04f39047
SW		 5525 return err;
5526}
5527
9720bb3a
JB		 5528static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5529 u32 seq, int flags,
2a519311 5530 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5531 struct wireless_dev *wdev,
5532 struct cfg80211_internal_bss *intbss)
2a519311 5533{
48ab905d 5534 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5535 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5536 void *hdr;
5537 struct nlattr *bss;
8cef2c9d 5538 bool tsf = false;
48ab905d
JB		 5539
5540 ASSERT_WDEV_LOCK(wdev);
2a519311 5541
15e47304 5542 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5543 NL80211_CMD_NEW_SCAN_RESULTS);
5544 if (!hdr)
5545 return -1;
5546
9720bb3a
JB		 5547 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5548
97990a06
JB		 5549 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5550 goto nla_put_failure;
5551 if (wdev->netdev &&
9360ffd1
DM		 5552 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5553 goto nla_put_failure;
97990a06
JB		 5554 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5555 goto nla_put_failure;
2a519311
JB		 5556
5557 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5558 if (!bss)
5559 goto nla_put_failure;
9360ffd1 5560 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5561 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5562 goto nla_put_failure;
9caf0364
JB		 5563
5564 rcu_read_lock();
5565 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5566 if (ies) {
5567 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5568 goto fail_unlock_rcu;
5569 tsf = true;
5570 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5571 ies->len, ies->data))
5572 goto fail_unlock_rcu;
9caf0364
JB		 5573 }
5574 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5575 if (ies) {
5576 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5577 goto fail_unlock_rcu;
5578 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5579 ies->len, ies->data))
5580 goto fail_unlock_rcu;
9caf0364
JB		 5581 }
5582 rcu_read_unlock();
5583
9360ffd1
DM		 5584 if (res->beacon_interval &&
5585 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5586 goto nla_put_failure;
5587 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5588 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5589 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5590 jiffies_to_msecs(jiffies - intbss->ts)))
5591 goto nla_put_failure;
2a519311 5592
77965c97 5593 switch (rdev->wiphy.signal_type) {
2a519311 5594 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5595 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5596 goto nla_put_failure;
2a519311
JB		 5597 break;
5598 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5599 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5600 goto nla_put_failure;
2a519311
JB		 5601 break;
5602 default:
5603 break;
5604 }
5605
48ab905d 5606 switch (wdev->iftype) {
074ac8df 5607 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5608 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5609 if (intbss == wdev->current_bss &&
5610 nla_put_u32(msg, NL80211_BSS_STATUS,
5611 NL80211_BSS_STATUS_ASSOCIATED))
5612 goto nla_put_failure;
48ab905d
JB		 5613 break;
5614 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5615 if (intbss == wdev->current_bss &&
5616 nla_put_u32(msg, NL80211_BSS_STATUS,
5617 NL80211_BSS_STATUS_IBSS_JOINED))
5618 goto nla_put_failure;
48ab905d
JB		 5619 break;
5620 default:
5621 break;
5622 }
5623
2a519311
JB		 5624 nla_nest_end(msg, bss);
5625
5626 return genlmsg_end(msg, hdr);
5627
8cef2c9d
JB		 5628 fail_unlock_rcu:
5629 rcu_read_unlock();
2a519311
JB		 5630 nla_put_failure:
5631 genlmsg_cancel(msg, hdr);
5632 return -EMSGSIZE;
5633}
5634
97990a06 5635static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5636{
48ab905d 5637 struct cfg80211_registered_device *rdev;
2a519311 5638 struct cfg80211_internal_bss *scan;
48ab905d 5639 struct wireless_dev *wdev;
97990a06 5640 int start = cb->args[2], idx = 0;
2a519311
JB		 5641 int err;
5642
97990a06 5643 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5644 if (err)
5645 return err;
2a519311 5646
48ab905d
JB		 5647 wdev_lock(wdev);
5648 spin_lock_bh(&rdev->bss_lock);
5649 cfg80211_bss_expire(rdev);
5650
9720bb3a
JB		 5651 cb->seq = rdev->bss_generation;
5652
48ab905d 5653 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5654 if (++idx <= start)
5655 continue;
9720bb3a 5656 if (nl80211_send_bss(skb, cb,
2a519311 5657 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5658 rdev, wdev, scan) < 0) {
2a519311 5659 idx--;
67748893 5660 break;
2a519311
JB		 5661 }
5662 }
5663
48ab905d
JB		 5664 spin_unlock_bh(&rdev->bss_lock);
5665 wdev_unlock(wdev);
2a519311 5666
97990a06
JB		 5667 cb->args[2] = idx;
5668 nl80211_finish_wdev_dump(rdev);
2a519311 5669
67748893 5670 return skb->len;
2a519311
JB		 5671}
5672
15e47304 5673static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5674 int flags, struct net_device *dev,
5675 struct survey_info *survey)
5676{
5677 void *hdr;
5678 struct nlattr *infoattr;
5679
15e47304 5680 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5681 NL80211_CMD_NEW_SURVEY_RESULTS);
5682 if (!hdr)
5683 return -ENOMEM;
5684
9360ffd1
DM		 5685 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5686 goto nla_put_failure;
61fa713c
HS		 5687
5688 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5689 if (!infoattr)
5690 goto nla_put_failure;
5691
9360ffd1
DM		 5692 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5693 survey->channel->center_freq))
5694 goto nla_put_failure;
5695
5696 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5697 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5698 goto nla_put_failure;
5699 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5700 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5701 goto nla_put_failure;
5702 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5703 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5704 survey->channel_time))
5705 goto nla_put_failure;
5706 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5707 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5708 survey->channel_time_busy))
5709 goto nla_put_failure;
5710 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5711 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5712 survey->channel_time_ext_busy))
5713 goto nla_put_failure;
5714 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5715 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5716 survey->channel_time_rx))
5717 goto nla_put_failure;
5718 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5719 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5720 survey->channel_time_tx))
5721 goto nla_put_failure;
61fa713c
HS		 5722
5723 nla_nest_end(msg, infoattr);
5724
5725 return genlmsg_end(msg, hdr);
5726
5727 nla_put_failure:
5728 genlmsg_cancel(msg, hdr);
5729 return -EMSGSIZE;
5730}
5731
5732static int nl80211_dump_survey(struct sk_buff *skb,
5733 struct netlink_callback *cb)
5734{
5735 struct survey_info survey;
5736 struct cfg80211_registered_device *dev;
97990a06
JB		 5737 struct wireless_dev *wdev;
5738 int survey_idx = cb->args[2];
61fa713c
HS		 5739 int res;
5740
97990a06 5741 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 5742 if (res)
5743 return res;
61fa713c 5744
97990a06
JB		 5745 if (!wdev->netdev) {
5746 res = -EINVAL;
5747 goto out_err;
5748 }
5749
61fa713c
HS		 5750 if (!dev->ops->dump_survey) {
5751 res = -EOPNOTSUPP;
5752 goto out_err;
5753 }
5754
5755 while (1) {
180cdc79
LR		 5756 struct ieee80211_channel *chan;
5757
97990a06 5758 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 5759 if (res == -ENOENT)
5760 break;
5761 if (res)
5762 goto out_err;
5763
180cdc79
LR		 5764 /* Survey without a channel doesn't make sense */
5765 if (!survey.channel) {
5766 res = -EINVAL;
5767 goto out;
5768 }
5769
5770 chan = ieee80211_get_channel(&dev->wiphy,
5771 survey.channel->center_freq);
5772 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5773 survey_idx++;
5774 continue;
5775 }
5776
61fa713c 5777 if (nl80211_send_survey(skb,
15e47304 5778 NETLINK_CB(cb->skb).portid,
61fa713c 5779 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5780 wdev->netdev, &survey) < 0)
61fa713c
HS		 5781 goto out;
5782 survey_idx++;
5783 }
5784
5785 out:
97990a06 5786 cb->args[2] = survey_idx;
61fa713c
HS		 5787 res = skb->len;
5788 out_err:
97990a06 5789 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 5790 return res;
5791}
5792
b23aa676
SO		 5793static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5794{
5795 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5796 NL80211_WPA_VERSION_2));
5797}
5798
636a5d36
JM		 5799static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5800{
4c476991
JB		 5801 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5802 struct net_device *dev = info->user_ptr[1];
19957bb3 5803 struct ieee80211_channel *chan;
e39e5b5e
JM		 5804 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5805 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5806 enum nl80211_auth_type auth_type;
fffd0934 5807 struct key_parse key;
d5cdfacb 5808 bool local_state_change;
636a5d36 5809
f4a11bb0
JB		 5810 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5811 return -EINVAL;
5812
5813 if (!info->attrs[NL80211_ATTR_MAC])
5814 return -EINVAL;
5815
1778092e
JM		 5816 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5817 return -EINVAL;
5818
19957bb3
JB		 5819 if (!info->attrs[NL80211_ATTR_SSID])
5820 return -EINVAL;
5821
5822 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5823 return -EINVAL;
5824
fffd0934
JB		 5825 err = nl80211_parse_key(info, &key);
5826 if (err)
5827 return err;
5828
5829 if (key.idx >= 0) {
e31b8213
JB		 5830 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5831 return -EINVAL;
fffd0934
JB		 5832 if (!key.p.key || !key.p.key_len)
5833 return -EINVAL;
5834 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5835 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5836 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5837 key.p.key_len != WLAN_KEY_LEN_WEP104))
5838 return -EINVAL;
5839 if (key.idx > 4)
5840 return -EINVAL;
5841 } else {
5842 key.p.key_len = 0;
5843 key.p.key = NULL;
5844 }
5845
afea0b7a
JB		 5846 if (key.idx >= 0) {
5847 int i;
5848 bool ok = false;
5849 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5850 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5851 ok = true;
5852 break;
5853 }
5854 }
4c476991
JB		 5855 if (!ok)
5856 return -EINVAL;
afea0b7a
JB		 5857 }
5858
4c476991
JB		 5859 if (!rdev->ops->auth)
5860 return -EOPNOTSUPP;
636a5d36 5861
074ac8df 5862 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5863 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5864 return -EOPNOTSUPP;
eec60b03 5865
19957bb3 5866 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5867 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5868 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5869 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5870 return -EINVAL;
636a5d36 5871
19957bb3
JB		 5872 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5873 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5874
5875 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5876 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5877 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5878 }
5879
19957bb3 5880 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5881 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5882 return -EINVAL;
636a5d36 5883
e39e5b5e
JM		 5884 if (auth_type == NL80211_AUTHTYPE_SAE &&
5885 !info->attrs[NL80211_ATTR_SAE_DATA])
5886 return -EINVAL;
5887
5888 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5889 if (auth_type != NL80211_AUTHTYPE_SAE)
5890 return -EINVAL;
5891 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5892 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5893 /* need to include at least Auth Transaction and Status Code */
5894 if (sae_data_len < 4)
5895 return -EINVAL;
5896 }
5897
d5cdfacb
JM		 5898 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5899
95de817b
JB		 5900 /*
5901 * Since we no longer track auth state, ignore
5902 * requests to only change local state.
5903 */
5904 if (local_state_change)
5905 return 0;
5906
4c476991
JB		 5907 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5908 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5909 key.p.key, key.p.key_len, key.idx,
5910 sae_data, sae_data_len);
636a5d36
JM		 5911}
5912
c0692b8f
JB		 5913static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5914 struct genl_info *info,
3dc27d25
JB		 5915 struct cfg80211_crypto_settings *settings,
5916 int cipher_limit)
b23aa676 5917{
c0b2bbd8
JB		 5918 memset(settings, 0, sizeof(*settings));
5919
b23aa676
SO		 5920 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5921
c0692b8f
JB		 5922 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5923 u16 proto;
5924 proto = nla_get_u16(
5925 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5926 settings->control_port_ethertype = cpu_to_be16(proto);
5927 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5928 proto != ETH_P_PAE)
5929 return -EINVAL;
5930 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5931 settings->control_port_no_encrypt = true;
5932 } else
5933 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5934
b23aa676
SO		 5935 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5936 void *data;
5937 int len, i;
5938
5939 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5940 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5941 settings->n_ciphers_pairwise = len / sizeof(u32);
5942
5943 if (len % sizeof(u32))
5944 return -EINVAL;
5945
3dc27d25 5946 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5947 return -EINVAL;
5948
5949 memcpy(settings->ciphers_pairwise, data, len);
5950
5951 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5952 if (!cfg80211_supported_cipher_suite(
5953 &rdev->wiphy,
b23aa676
SO		 5954 settings->ciphers_pairwise[i]))
5955 return -EINVAL;
5956 }
5957
5958 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5959 settings->cipher_group =
5960 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5961 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5962 settings->cipher_group))
b23aa676
SO		 5963 return -EINVAL;
5964 }
5965
5966 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5967 settings->wpa_versions =
5968 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5969 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5970 return -EINVAL;
5971 }
5972
5973 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5974 void *data;
6d30240e 5975 int len;
b23aa676
SO		 5976
5977 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5978 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5979 settings->n_akm_suites = len / sizeof(u32);
5980
5981 if (len % sizeof(u32))
5982 return -EINVAL;
5983
1b9ca027
JM		 5984 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5985 return -EINVAL;
5986
b23aa676 5987 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5988 }
5989
5990 return 0;
5991}
5992
636a5d36
JM		 5993static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5994{
4c476991
JB		 5995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5996 struct net_device *dev = info->user_ptr[1];
f444de05 5997 struct ieee80211_channel *chan;
f62fab73
JB		 5998 struct cfg80211_assoc_request req = {};
5999 const u8 *bssid, *ssid;
6000 int err, ssid_len = 0;
636a5d36 6001
f4a11bb0
JB		 6002 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6003 return -EINVAL;
6004
6005 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6006 !info->attrs[NL80211_ATTR_SSID] ||
6007 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6008 return -EINVAL;
6009
4c476991
JB		 6010 if (!rdev->ops->assoc)
6011 return -EOPNOTSUPP;
636a5d36 6012
074ac8df 6013 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6014 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6015 return -EOPNOTSUPP;
eec60b03 6016
19957bb3 6017 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6018
19957bb3
JB		 6019 chan = ieee80211_get_channel(&rdev->wiphy,
6020 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6021 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6022 return -EINVAL;
636a5d36 6023
19957bb3
JB		 6024 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6025 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6026
6027 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6028 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6029 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6030 }
6031
dc6382ce 6032 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6033 enum nl80211_mfp mfp =
dc6382ce 6034 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6035 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6036 req.use_mfp = true;
4c476991
JB		 6037 else if (mfp != NL80211_MFP_NO)
6038 return -EINVAL;
dc6382ce
JM		 6039 }
6040
3e5d7649 6041 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6042 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6043
7e7c8926 6044 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6045 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6046
6047 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6048 memcpy(&req.ht_capa_mask,
6049 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6050 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6051
6052 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6053 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6054 return -EINVAL;
f62fab73
JB		 6055 memcpy(&req.ht_capa,
6056 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6057 sizeof(req.ht_capa));
7e7c8926
BG		 6058 }
6059
ee2aca34 6060 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6061 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6062
6063 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6064 memcpy(&req.vht_capa_mask,
6065 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6066 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6067
6068 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6069 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6070 return -EINVAL;
f62fab73
JB		 6071 memcpy(&req.vht_capa,
6072 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6073 sizeof(req.vht_capa));
ee2aca34
JB		 6074 }
6075
f62fab73 6076 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
b23aa676 6077 if (!err)
f62fab73
JB		 6078 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6079 ssid, ssid_len, &req);
636a5d36 6080
636a5d36
JM		 6081 return err;
6082}
6083
6084static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6085{
4c476991
JB		 6086 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6087 struct net_device *dev = info->user_ptr[1];
19957bb3 6088 const u8 *ie = NULL, *bssid;
4c476991 6089 int ie_len = 0;
19957bb3 6090 u16 reason_code;
d5cdfacb 6091 bool local_state_change;
636a5d36 6092
f4a11bb0
JB		 6093 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6094 return -EINVAL;
6095
6096 if (!info->attrs[NL80211_ATTR_MAC])
6097 return -EINVAL;
6098
6099 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6100 return -EINVAL;
6101
4c476991
JB		 6102 if (!rdev->ops->deauth)
6103 return -EOPNOTSUPP;
636a5d36 6104
074ac8df 6105 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6106 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6107 return -EOPNOTSUPP;
eec60b03 6108
19957bb3 6109 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6110
19957bb3
JB		 6111 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6112 if (reason_code == 0) {
f4a11bb0 6113 /* Reason Code 0 is reserved */
4c476991 6114 return -EINVAL;
255e737e 6115 }
636a5d36
JM		 6116
6117 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6118 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6119 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6120 }
6121
d5cdfacb
JM		 6122 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6123
4c476991
JB		 6124 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6125 local_state_change);
636a5d36
JM		 6126}
6127
6128static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6129{
4c476991
JB		 6130 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6131 struct net_device *dev = info->user_ptr[1];
19957bb3 6132 const u8 *ie = NULL, *bssid;
4c476991 6133 int ie_len = 0;
19957bb3 6134 u16 reason_code;
d5cdfacb 6135 bool local_state_change;
636a5d36 6136
f4a11bb0
JB		 6137 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6138 return -EINVAL;
6139
6140 if (!info->attrs[NL80211_ATTR_MAC])
6141 return -EINVAL;
6142
6143 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6144 return -EINVAL;
6145
4c476991
JB		 6146 if (!rdev->ops->disassoc)
6147 return -EOPNOTSUPP;
636a5d36 6148
074ac8df 6149 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6150 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6151 return -EOPNOTSUPP;
eec60b03 6152
19957bb3 6153 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6154
19957bb3
JB		 6155 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6156 if (reason_code == 0) {
f4a11bb0 6157 /* Reason Code 0 is reserved */
4c476991 6158 return -EINVAL;
255e737e 6159 }
636a5d36
JM		 6160
6161 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6162 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6163 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6164 }
6165
d5cdfacb
JM		 6166 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6167
4c476991
JB		 6168 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6169 local_state_change);
636a5d36
JM		 6170}
6171
dd5b4cc7
FF		 6172static bool
6173nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6174 int mcast_rate[IEEE80211_NUM_BANDS],
6175 int rateval)
6176{
6177 struct wiphy *wiphy = &rdev->wiphy;
6178 bool found = false;
6179 int band, i;
6180
6181 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6182 struct ieee80211_supported_band *sband;
6183
6184 sband = wiphy->bands[band];
6185 if (!sband)
6186 continue;
6187
6188 for (i = 0; i < sband->n_bitrates; i++) {
6189 if (sband->bitrates[i].bitrate == rateval) {
6190 mcast_rate[band] = i + 1;
6191 found = true;
6192 break;
6193 }
6194 }
6195 }
6196
6197 return found;
6198}
6199
04a773ad
JB		 6200static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6201{
4c476991
JB		 6202 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6203 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6204 struct cfg80211_ibss_params ibss;
6205 struct wiphy *wiphy;
fffd0934 6206 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6207 int err;
6208
8e30bc55
JB		 6209 memset(&ibss, 0, sizeof(ibss));
6210
04a773ad
JB		 6211 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6212 return -EINVAL;
6213
683b6d3b 6214 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6215 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6216 return -EINVAL;
6217
8e30bc55
JB		 6218 ibss.beacon_interval = 100;
6219
6220 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6221 ibss.beacon_interval =
6222 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6223 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6224 return -EINVAL;
6225 }
6226
4c476991
JB		 6227 if (!rdev->ops->join_ibss)
6228 return -EOPNOTSUPP;
04a773ad 6229
4c476991
JB		 6230 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6231 return -EOPNOTSUPP;
04a773ad 6232
79c97e97 6233 wiphy = &rdev->wiphy;
04a773ad 6234
39193498 6235 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6236 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6237
6238 if (!is_valid_ether_addr(ibss.bssid))
6239 return -EINVAL;
6240 }
04a773ad
JB		 6241 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6242 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6243
6244 if (info->attrs[NL80211_ATTR_IE]) {
6245 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6246 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6247 }
6248
683b6d3b
JB		 6249 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6250 if (err)
6251 return err;
04a773ad 6252
683b6d3b 6253 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6254 return -EINVAL;
6255
db9c64cf
JB		 6256 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
6257 return -EINVAL;
6258 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
6259 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 6260 return -EINVAL;
db9c64cf 6261
04a773ad 6262 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6263 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6264
fbd2c8dc
TP		 6265 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6266 u8 *rates =
6267 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6268 int n_rates =
6269 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6270 struct ieee80211_supported_band *sband =
683b6d3b 6271 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6272
34850ab2
JB		 6273 err = ieee80211_get_ratemask(sband, rates, n_rates,
6274 &ibss.basic_rates);
6275 if (err)
6276 return err;
fbd2c8dc 6277 }
dd5b4cc7
FF		 6278
6279 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6280 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6281 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6282 return -EINVAL;
fbd2c8dc 6283
4c476991 6284 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6285 bool no_ht = false;
6286
4c476991 6287 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6288 info->attrs[NL80211_ATTR_KEYS],
6289 &no_ht);
4c476991
JB		 6290 if (IS_ERR(connkeys))
6291 return PTR_ERR(connkeys);
de7044ee 6292
3d9d1d66
JB		 6293 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6294 no_ht) {
de7044ee
SM		 6295 kfree(connkeys);
6296 return -EINVAL;
6297 }
4c476991 6298 }
04a773ad 6299
267335d6
AQ		 6300 ibss.control_port =
6301 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6302
4c476991 6303 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6304 if (err)
6305 kfree(connkeys);
04a773ad
JB		 6306 return err;
6307}
6308
6309static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6310{
4c476991
JB		 6311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6312 struct net_device *dev = info->user_ptr[1];
04a773ad 6313
4c476991
JB		 6314 if (!rdev->ops->leave_ibss)
6315 return -EOPNOTSUPP;
04a773ad 6316
4c476991
JB		 6317 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6318 return -EOPNOTSUPP;
04a773ad 6319
4c476991 6320 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6321}
6322
f4e583c8
AQ		 6323static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6324{
6325 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6326 struct net_device *dev = info->user_ptr[1];
6327 int mcast_rate[IEEE80211_NUM_BANDS];
6328 u32 nla_rate;
6329 int err;
6330
6331 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6332 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6333 return -EOPNOTSUPP;
6334
6335 if (!rdev->ops->set_mcast_rate)
6336 return -EOPNOTSUPP;
6337
6338 memset(mcast_rate, 0, sizeof(mcast_rate));
6339
6340 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6341 return -EINVAL;
6342
6343 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6344 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6345 return -EINVAL;
6346
6347 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6348
6349 return err;
6350}
6351
6352
aff89a9b
JB		 6353#ifdef CONFIG_NL80211_TESTMODE
6354static struct genl_multicast_group nl80211_testmode_mcgrp = {
6355 .name = "testmode",
6356};
6357
6358static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6359{
4c476991 6360 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6361 int err;
6362
6363 if (!info->attrs[NL80211_ATTR_TESTDATA])
6364 return -EINVAL;
6365
aff89a9b
JB		 6366 err = -EOPNOTSUPP;
6367 if (rdev->ops->testmode_cmd) {
6368 rdev->testmode_info = info;
e35e4d28 6369 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6370 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6371 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6372 rdev->testmode_info = NULL;
6373 }
6374
aff89a9b
JB		 6375 return err;
6376}
6377
71063f0e
WYG		 6378static int nl80211_testmode_dump(struct sk_buff *skb,
6379 struct netlink_callback *cb)
6380{
00918d33 6381 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6382 int err;
6383 long phy_idx;
6384 void *data = NULL;
6385 int data_len = 0;
6386
5fe231e8
JB		 6387 rtnl_lock();
6388
71063f0e
WYG		 6389 if (cb->args[0]) {
6390 /*
6391 * 0 is a valid index, but not valid for args[0],
6392 * so we need to offset by 1.
6393 */
6394 phy_idx = cb->args[0] - 1;
6395 } else {
6396 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6397 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6398 nl80211_policy);
6399 if (err)
5fe231e8 6400 goto out_err;
00918d33 6401
2bd7e35d
JB		 6402 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6403 nl80211_fam.attrbuf);
6404 if (IS_ERR(rdev)) {
5fe231e8
JB		 6405 err = PTR_ERR(rdev);
6406 goto out_err;
00918d33 6407 }
2bd7e35d
JB		 6408 phy_idx = rdev->wiphy_idx;
6409 rdev = NULL;
2bd7e35d 6410
71063f0e
WYG		 6411 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6412 cb->args[1] =
6413 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6414 }
6415
6416 if (cb->args[1]) {
6417 data = nla_data((void *)cb->args[1]);
6418 data_len = nla_len((void *)cb->args[1]);
6419 }
6420
00918d33
JB		 6421 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6422 if (!rdev) {
5fe231e8
JB		 6423 err = -ENOENT;
6424 goto out_err;
71063f0e 6425 }
71063f0e 6426
00918d33 6427 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6428 err = -EOPNOTSUPP;
6429 goto out_err;
6430 }
6431
6432 while (1) {
15e47304 6433 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6434 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6435 NL80211_CMD_TESTMODE);
6436 struct nlattr *tmdata;
6437
9360ffd1 6438 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6439 genlmsg_cancel(skb, hdr);
6440 break;
6441 }
6442
6443 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6444 if (!tmdata) {
6445 genlmsg_cancel(skb, hdr);
6446 break;
6447 }
e35e4d28 6448 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6449 nla_nest_end(skb, tmdata);
6450
6451 if (err == -ENOBUFS || err == -ENOENT) {
6452 genlmsg_cancel(skb, hdr);
6453 break;
6454 } else if (err) {
6455 genlmsg_cancel(skb, hdr);
6456 goto out_err;
6457 }
6458
6459 genlmsg_end(skb, hdr);
6460 }
6461
6462 err = skb->len;
6463 /* see above */
6464 cb->args[0] = phy_idx + 1;
6465 out_err:
5fe231e8 6466 rtnl_unlock();
71063f0e
WYG		 6467 return err;
6468}
6469
aff89a9b
JB		 6470static struct sk_buff *
6471__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6472 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6473{
6474 struct sk_buff *skb;
6475 void *hdr;
6476 struct nlattr *data;
6477
6478 skb = nlmsg_new(approxlen + 100, gfp);
6479 if (!skb)
6480 return NULL;
6481
15e47304 6482 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6483 if (!hdr) {
6484 kfree_skb(skb);
6485 return NULL;
6486 }
6487
9360ffd1
DM		 6488 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6489 goto nla_put_failure;
aff89a9b
JB		 6490 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6491
6492 ((void **)skb->cb)[0] = rdev;
6493 ((void **)skb->cb)[1] = hdr;
6494 ((void **)skb->cb)[2] = data;
6495
6496 return skb;
6497
6498 nla_put_failure:
6499 kfree_skb(skb);
6500 return NULL;
6501}
6502
6503struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6504 int approxlen)
6505{
6506 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6507
6508 if (WARN_ON(!rdev->testmode_info))
6509 return NULL;
6510
6511 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6512 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6513 rdev->testmode_info->snd_seq,
6514 GFP_KERNEL);
6515}
6516EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6517
6518int cfg80211_testmode_reply(struct sk_buff *skb)
6519{
6520 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6521 void *hdr = ((void **)skb->cb)[1];
6522 struct nlattr *data = ((void **)skb->cb)[2];
6523
6524 if (WARN_ON(!rdev->testmode_info)) {
6525 kfree_skb(skb);
6526 return -EINVAL;
6527 }
6528
6529 nla_nest_end(skb, data);
6530 genlmsg_end(skb, hdr);
6531 return genlmsg_reply(skb, rdev->testmode_info);
6532}
6533EXPORT_SYMBOL(cfg80211_testmode_reply);
6534
6535struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6536 int approxlen, gfp_t gfp)
6537{
6538 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6539
6540 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6541}
6542EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6543
6544void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6545{
6546 void *hdr = ((void **)skb->cb)[1];
6547 struct nlattr *data = ((void **)skb->cb)[2];
6548
6549 nla_nest_end(skb, data);
6550 genlmsg_end(skb, hdr);
6551 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6552}
6553EXPORT_SYMBOL(cfg80211_testmode_event);
6554#endif
6555
b23aa676
SO		 6556static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6557{
4c476991
JB		 6558 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6559 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6560 struct cfg80211_connect_params connect;
6561 struct wiphy *wiphy;
fffd0934 6562 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6563 int err;
6564
6565 memset(&connect, 0, sizeof(connect));
6566
6567 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6568 return -EINVAL;
6569
6570 if (!info->attrs[NL80211_ATTR_SSID] ||
6571 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6572 return -EINVAL;
6573
6574 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6575 connect.auth_type =
6576 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6577 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6578 NL80211_CMD_CONNECT))
b23aa676
SO		 6579 return -EINVAL;
6580 } else
6581 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6582
6583 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6584
c0692b8f 6585 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6586 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6587 if (err)
6588 return err;
b23aa676 6589
074ac8df 6590 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6591 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6592 return -EOPNOTSUPP;
b23aa676 6593
79c97e97 6594 wiphy = &rdev->wiphy;
b23aa676 6595
4486ea98
BS		 6596 connect.bg_scan_period = -1;
6597 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6598 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6599 connect.bg_scan_period =
6600 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6601 }
6602
b23aa676
SO		 6603 if (info->attrs[NL80211_ATTR_MAC])
6604 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6605 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6606 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6607
6608 if (info->attrs[NL80211_ATTR_IE]) {
6609 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6610 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6611 }
6612
cee00a95
JM		 6613 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6614 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6615 if (connect.mfp != NL80211_MFP_REQUIRED &&
6616 connect.mfp != NL80211_MFP_NO)
6617 return -EINVAL;
6618 } else {
6619 connect.mfp = NL80211_MFP_NO;
6620 }
6621
b23aa676
SO		 6622 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6623 connect.channel =
6624 ieee80211_get_channel(wiphy,
6625 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6626 if (!connect.channel ||
4c476991
JB		 6627 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6628 return -EINVAL;
b23aa676
SO		 6629 }
6630
fffd0934
JB		 6631 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6632 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6633 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6634 if (IS_ERR(connkeys))
6635 return PTR_ERR(connkeys);
fffd0934
JB		 6636 }
6637
7e7c8926
BG		 6638 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6639 connect.flags |= ASSOC_REQ_DISABLE_HT;
6640
6641 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6642 memcpy(&connect.ht_capa_mask,
6643 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6644 sizeof(connect.ht_capa_mask));
6645
6646 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6647 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6648 kfree(connkeys);
7e7c8926 6649 return -EINVAL;
b4e4f47e 6650 }
7e7c8926
BG		 6651 memcpy(&connect.ht_capa,
6652 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6653 sizeof(connect.ht_capa));
6654 }
6655
ee2aca34
JB		 6656 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6657 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6658
6659 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6660 memcpy(&connect.vht_capa_mask,
6661 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6662 sizeof(connect.vht_capa_mask));
6663
6664 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6665 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6666 kfree(connkeys);
6667 return -EINVAL;
6668 }
6669 memcpy(&connect.vht_capa,
6670 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6671 sizeof(connect.vht_capa));
6672 }
6673
fffd0934 6674 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 6675 if (err)
6676 kfree(connkeys);
b23aa676
SO		 6677 return err;
6678}
6679
6680static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6681{
4c476991
JB		 6682 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6683 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6684 u16 reason;
6685
6686 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6687 reason = WLAN_REASON_DEAUTH_LEAVING;
6688 else
6689 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6690
6691 if (reason == 0)
6692 return -EINVAL;
6693
074ac8df 6694 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6695 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6696 return -EOPNOTSUPP;
b23aa676 6697
4c476991 6698 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 6699}
6700
463d0183
JB		 6701static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6702{
4c476991 6703 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6704 struct net *net;
6705 int err;
6706 u32 pid;
6707
6708 if (!info->attrs[NL80211_ATTR_PID])
6709 return -EINVAL;
6710
6711 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6712
463d0183 6713 net = get_net_ns_by_pid(pid);
4c476991
JB		 6714 if (IS_ERR(net))
6715 return PTR_ERR(net);
463d0183
JB		 6716
6717 err = 0;
6718
6719 /* check if anything to do */
4c476991
JB		 6720 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6721 err = cfg80211_switch_netns(rdev, net);
463d0183 6722
463d0183 6723 put_net(net);
463d0183
JB		 6724 return err;
6725}
6726
67fbb16b
SO		 6727static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6728{
4c476991 6729 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6730 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6731 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6732 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6733 struct cfg80211_pmksa pmksa;
6734
6735 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6736
6737 if (!info->attrs[NL80211_ATTR_MAC])
6738 return -EINVAL;
6739
6740 if (!info->attrs[NL80211_ATTR_PMKID])
6741 return -EINVAL;
6742
67fbb16b
SO		 6743 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6744 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6745
074ac8df 6746 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6747 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6748 return -EOPNOTSUPP;
67fbb16b
SO		 6749
6750 switch (info->genlhdr->cmd) {
6751 case NL80211_CMD_SET_PMKSA:
6752 rdev_ops = rdev->ops->set_pmksa;
6753 break;
6754 case NL80211_CMD_DEL_PMKSA:
6755 rdev_ops = rdev->ops->del_pmksa;
6756 break;
6757 default:
6758 WARN_ON(1);
6759 break;
6760 }
6761
4c476991
JB		 6762 if (!rdev_ops)
6763 return -EOPNOTSUPP;
67fbb16b 6764
4c476991 6765 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6766}
6767
6768static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6769{
4c476991
JB		 6770 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6771 struct net_device *dev = info->user_ptr[1];
67fbb16b 6772
074ac8df 6773 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6774 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6775 return -EOPNOTSUPP;
67fbb16b 6776
4c476991
JB		 6777 if (!rdev->ops->flush_pmksa)
6778 return -EOPNOTSUPP;
67fbb16b 6779
e35e4d28 6780 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6781}
6782
109086ce
AN		 6783static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6784{
6785 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6786 struct net_device *dev = info->user_ptr[1];
6787 u8 action_code, dialog_token;
6788 u16 status_code;
6789 u8 *peer;
6790
6791 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6792 !rdev->ops->tdls_mgmt)
6793 return -EOPNOTSUPP;
6794
6795 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6796 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6797 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6798 !info->attrs[NL80211_ATTR_IE] ||
6799 !info->attrs[NL80211_ATTR_MAC])
6800 return -EINVAL;
6801
6802 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6803 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6804 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6805 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6806
e35e4d28
HG		 6807 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6808 dialog_token, status_code,
6809 nla_data(info->attrs[NL80211_ATTR_IE]),
6810 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6811}
6812
6813static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6814{
6815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6816 struct net_device *dev = info->user_ptr[1];
6817 enum nl80211_tdls_operation operation;
6818 u8 *peer;
6819
6820 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6821 !rdev->ops->tdls_oper)
6822 return -EOPNOTSUPP;
6823
6824 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6825 !info->attrs[NL80211_ATTR_MAC])
6826 return -EINVAL;
6827
6828 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6829 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6830
e35e4d28 6831 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6832}
6833
9588bbd5
JM		 6834static int nl80211_remain_on_channel(struct sk_buff *skb,
6835 struct genl_info *info)
6836{
4c476991 6837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6838 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6839 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6840 struct sk_buff *msg;
6841 void *hdr;
6842 u64 cookie;
683b6d3b 6843 u32 duration;
9588bbd5
JM		 6844 int err;
6845
6846 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6847 !info->attrs[NL80211_ATTR_DURATION])
6848 return -EINVAL;
6849
6850 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6851
ebf348fc
JB		 6852 if (!rdev->ops->remain_on_channel ||
6853 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6854 return -EOPNOTSUPP;
6855
9588bbd5 6856 /*
ebf348fc
JB		 6857 * We should be on that channel for at least a minimum amount of
6858 * time (10ms) but no longer than the driver supports.
9588bbd5 6859 */
ebf348fc 6860 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6861 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6862 return -EINVAL;
6863
683b6d3b
JB		 6864 err = nl80211_parse_chandef(rdev, info, &chandef);
6865 if (err)
6866 return err;
9588bbd5
JM		 6867
6868 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6869 if (!msg)
6870 return -ENOMEM;
9588bbd5 6871
15e47304 6872 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6873 NL80211_CMD_REMAIN_ON_CHANNEL);
6874
6875 if (IS_ERR(hdr)) {
6876 err = PTR_ERR(hdr);
6877 goto free_msg;
6878 }
6879
683b6d3b
JB		 6880 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6881 duration, &cookie);
9588bbd5
JM		 6882
6883 if (err)
6884 goto free_msg;
6885
9360ffd1
DM		 6886 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6887 goto nla_put_failure;
9588bbd5
JM		 6888
6889 genlmsg_end(msg, hdr);
4c476991
JB		 6890
6891 return genlmsg_reply(msg, info);
9588bbd5
JM		 6892
6893 nla_put_failure:
6894 err = -ENOBUFS;
6895 free_msg:
6896 nlmsg_free(msg);
9588bbd5
JM		 6897 return err;
6898}
6899
6900static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6901 struct genl_info *info)
6902{
4c476991 6903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6904 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6905 u64 cookie;
9588bbd5
JM		 6906
6907 if (!info->attrs[NL80211_ATTR_COOKIE])
6908 return -EINVAL;
6909
4c476991
JB		 6910 if (!rdev->ops->cancel_remain_on_channel)
6911 return -EOPNOTSUPP;
9588bbd5 6912
9588bbd5
JM		 6913 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6914
e35e4d28 6915 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6916}
6917
13ae75b1
JM		 6918static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6919 u8 *rates, u8 rates_len)
6920{
6921 u8 i;
6922 u32 mask = 0;
6923
6924 for (i = 0; i < rates_len; i++) {
6925 int rate = (rates[i] & 0x7f) * 5;
6926 int ridx;
6927 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6928 struct ieee80211_rate *srate =
6929 &sband->bitrates[ridx];
6930 if (rate == srate->bitrate) {
6931 mask |= 1 << ridx;
6932 break;
6933 }
6934 }
6935 if (ridx == sband->n_bitrates)
6936 return 0; /* rate not found */
6937 }
6938
6939 return mask;
6940}
6941
24db78c0
SW		 6942static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6943 u8 *rates, u8 rates_len,
6944 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6945{
6946 u8 i;
6947
6948 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6949
6950 for (i = 0; i < rates_len; i++) {
6951 int ridx, rbit;
6952
6953 ridx = rates[i] / 8;
6954 rbit = BIT(rates[i] % 8);
6955
6956 /* check validity */
910570b5 6957 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6958 return false;
6959
6960 /* check availability */
6961 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6962 mcs[ridx] |= rbit;
6963 else
6964 return false;
6965 }
6966
6967 return true;
6968}
6969
b54452b0 6970static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6971 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6972 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6973 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6974 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6975};
6976
6977static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6978 struct genl_info *info)
6979{
6980 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6981 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6982 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6983 int rem, i;
6984 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6985 struct nlattr *tx_rates;
6986 struct ieee80211_supported_band *sband;
6987
6988 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6989 return -EINVAL;
6990
4c476991
JB		 6991 if (!rdev->ops->set_bitrate_mask)
6992 return -EOPNOTSUPP;
13ae75b1
JM		 6993
6994 memset(&mask, 0, sizeof(mask));
6995 /* Default to all rates enabled */
6996 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6997 sband = rdev->wiphy.bands[i];
6998 mask.control[i].legacy =
6999 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 7000 if (sband)
7001 memcpy(mask.control[i].mcs,
7002 sband->ht_cap.mcs.rx_mask,
7003 sizeof(mask.control[i].mcs));
7004 else
7005 memset(mask.control[i].mcs, 0,
7006 sizeof(mask.control[i].mcs));
13ae75b1
JM		 7007 }
7008
7009 /*
7010 * The nested attribute uses enum nl80211_band as the index. This maps
7011 * directly to the enum ieee80211_band values used in cfg80211.
7012 */
24db78c0 7013 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7014 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7015 {
7016 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7017 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7018 return -EINVAL;
13ae75b1 7019 sband = rdev->wiphy.bands[band];
4c476991
JB		 7020 if (sband == NULL)
7021 return -EINVAL;
13ae75b1
JM		 7022 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7023 nla_len(tx_rates), nl80211_txattr_policy);
7024 if (tb[NL80211_TXRATE_LEGACY]) {
7025 mask.control[band].legacy = rateset_to_mask(
7026 sband,
7027 nla_data(tb[NL80211_TXRATE_LEGACY]),
7028 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7029 if ((mask.control[band].legacy == 0) &&
7030 nla_len(tb[NL80211_TXRATE_LEGACY]))
7031 return -EINVAL;
24db78c0
SW		 7032 }
7033 if (tb[NL80211_TXRATE_MCS]) {
7034 if (!ht_rateset_to_mask(
7035 sband,
7036 nla_data(tb[NL80211_TXRATE_MCS]),
7037 nla_len(tb[NL80211_TXRATE_MCS]),
7038 mask.control[band].mcs))
7039 return -EINVAL;
7040 }
7041
7042 if (mask.control[band].legacy == 0) {
7043 /* don't allow empty legacy rates if HT
7044 * is not even supported. */
7045 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7046 return -EINVAL;
7047
7048 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7049 if (mask.control[band].mcs[i])
7050 break;
7051
7052 /* legacy and mcs rates may not be both empty */
7053 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7054 return -EINVAL;
13ae75b1
JM		 7055 }
7056 }
7057
e35e4d28 7058 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7059}
7060
2e161f78 7061static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7062{
4c476991 7063 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7064 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7065 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7066
7067 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7068 return -EINVAL;
7069
2e161f78
JB		 7070 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7071 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7072
71bbc994
JB		 7073 switch (wdev->iftype) {
7074 case NL80211_IFTYPE_STATION:
7075 case NL80211_IFTYPE_ADHOC:
7076 case NL80211_IFTYPE_P2P_CLIENT:
7077 case NL80211_IFTYPE_AP:
7078 case NL80211_IFTYPE_AP_VLAN:
7079 case NL80211_IFTYPE_MESH_POINT:
7080 case NL80211_IFTYPE_P2P_GO:
98104fde 7081 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7082 break;
7083 default:
4c476991 7084 return -EOPNOTSUPP;
71bbc994 7085 }
026331c4
JM		 7086
7087 /* not much point in registering if we can't reply */
4c476991
JB		 7088 if (!rdev->ops->mgmt_tx)
7089 return -EOPNOTSUPP;
026331c4 7090
15e47304 7091 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7092 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7093 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7094}
7095
2e161f78 7096static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7097{
4c476991 7098 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7099 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7100 struct cfg80211_chan_def chandef;
026331c4 7101 int err;
d64d373f 7102 void *hdr = NULL;
026331c4 7103 u64 cookie;
e247bd90 7104 struct sk_buff *msg = NULL;
f7ca38df 7105 unsigned int wait = 0;
e247bd90
JB		 7106 bool offchan, no_cck, dont_wait_for_ack;
7107
7108 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 7109
683b6d3b 7110 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7111 return -EINVAL;
7112
4c476991
JB		 7113 if (!rdev->ops->mgmt_tx)
7114 return -EOPNOTSUPP;
026331c4 7115
71bbc994
JB		 7116 switch (wdev->iftype) {
7117 case NL80211_IFTYPE_STATION:
7118 case NL80211_IFTYPE_ADHOC:
7119 case NL80211_IFTYPE_P2P_CLIENT:
7120 case NL80211_IFTYPE_AP:
7121 case NL80211_IFTYPE_AP_VLAN:
7122 case NL80211_IFTYPE_MESH_POINT:
7123 case NL80211_IFTYPE_P2P_GO:
98104fde 7124 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7125 break;
7126 default:
4c476991 7127 return -EOPNOTSUPP;
71bbc994 7128 }
026331c4 7129
f7ca38df 7130 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7131 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 7132 return -EINVAL;
7133 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7134
7135 /*
7136 * We should wait on the channel for at least a minimum amount
7137 * of time (10ms) but no longer than the driver supports.
7138 */
7139 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7140 wait > rdev->wiphy.max_remain_on_channel_duration)
7141 return -EINVAL;
7142
f7ca38df
JB		 7143 }
7144
f7ca38df
JB		 7145 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7146
7c4ef712
JB		 7147 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7148 return -EINVAL;
7149
e9f935e3
RM		 7150 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7151
683b6d3b
JB		 7152 err = nl80211_parse_chandef(rdev, info, &chandef);
7153 if (err)
7154 return err;
026331c4 7155
e247bd90
JB		 7156 if (!dont_wait_for_ack) {
7157 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7158 if (!msg)
7159 return -ENOMEM;
026331c4 7160
15e47304 7161 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7162 NL80211_CMD_FRAME);
026331c4 7163
e247bd90
JB		 7164 if (IS_ERR(hdr)) {
7165 err = PTR_ERR(hdr);
7166 goto free_msg;
7167 }
026331c4 7168 }
e247bd90 7169
683b6d3b 7170 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 7171 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7172 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 7173 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 7174 if (err)
7175 goto free_msg;
7176
e247bd90 7177 if (msg) {
9360ffd1
DM		 7178 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7179 goto nla_put_failure;
026331c4 7180
e247bd90
JB		 7181 genlmsg_end(msg, hdr);
7182 return genlmsg_reply(msg, info);
7183 }
7184
7185 return 0;
026331c4
JM		 7186
7187 nla_put_failure:
7188 err = -ENOBUFS;
7189 free_msg:
7190 nlmsg_free(msg);
026331c4
JM		 7191 return err;
7192}
7193
f7ca38df
JB		 7194static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7195{
7196 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7197 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7198 u64 cookie;
7199
7200 if (!info->attrs[NL80211_ATTR_COOKIE])
7201 return -EINVAL;
7202
7203 if (!rdev->ops->mgmt_tx_cancel_wait)
7204 return -EOPNOTSUPP;
7205
71bbc994
JB		 7206 switch (wdev->iftype) {
7207 case NL80211_IFTYPE_STATION:
7208 case NL80211_IFTYPE_ADHOC:
7209 case NL80211_IFTYPE_P2P_CLIENT:
7210 case NL80211_IFTYPE_AP:
7211 case NL80211_IFTYPE_AP_VLAN:
7212 case NL80211_IFTYPE_P2P_GO:
98104fde 7213 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7214 break;
7215 default:
f7ca38df 7216 return -EOPNOTSUPP;
71bbc994 7217 }
f7ca38df
JB		 7218
7219 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7220
e35e4d28 7221 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7222}
7223
ffb9eb3d
KV		 7224static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7225{
4c476991 7226 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7227 struct wireless_dev *wdev;
4c476991 7228 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7229 u8 ps_state;
7230 bool state;
7231 int err;
7232
4c476991
JB		 7233 if (!info->attrs[NL80211_ATTR_PS_STATE])
7234 return -EINVAL;
ffb9eb3d
KV		 7235
7236 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7237
4c476991
JB		 7238 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7239 return -EINVAL;
ffb9eb3d
KV		 7240
7241 wdev = dev->ieee80211_ptr;
7242
4c476991
JB		 7243 if (!rdev->ops->set_power_mgmt)
7244 return -EOPNOTSUPP;
ffb9eb3d
KV		 7245
7246 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7247
7248 if (state == wdev->ps)
4c476991 7249 return 0;
ffb9eb3d 7250
e35e4d28 7251 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7252 if (!err)
7253 wdev->ps = state;
ffb9eb3d
KV		 7254 return err;
7255}
7256
7257static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7258{
4c476991 7259 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7260 enum nl80211_ps_state ps_state;
7261 struct wireless_dev *wdev;
4c476991 7262 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7263 struct sk_buff *msg;
7264 void *hdr;
7265 int err;
7266
ffb9eb3d
KV		 7267 wdev = dev->ieee80211_ptr;
7268
4c476991
JB		 7269 if (!rdev->ops->set_power_mgmt)
7270 return -EOPNOTSUPP;
ffb9eb3d
KV		 7271
7272 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7273 if (!msg)
7274 return -ENOMEM;
ffb9eb3d 7275
15e47304 7276 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7277 NL80211_CMD_GET_POWER_SAVE);
7278 if (!hdr) {
4c476991 7279 err = -ENOBUFS;
ffb9eb3d
KV		 7280 goto free_msg;
7281 }
7282
7283 if (wdev->ps)
7284 ps_state = NL80211_PS_ENABLED;
7285 else
7286 ps_state = NL80211_PS_DISABLED;
7287
9360ffd1
DM		 7288 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7289 goto nla_put_failure;
ffb9eb3d
KV		 7290
7291 genlmsg_end(msg, hdr);
4c476991 7292 return genlmsg_reply(msg, info);
ffb9eb3d 7293
4c476991 7294 nla_put_failure:
ffb9eb3d 7295 err = -ENOBUFS;
4c476991 7296 free_msg:
ffb9eb3d 7297 nlmsg_free(msg);
ffb9eb3d
KV		 7298 return err;
7299}
7300
d6dc1a38
JO		 7301static struct nla_policy
7302nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7303 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7304 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7305 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7306 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7307 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7308 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7309};
7310
84f10708 7311static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7312 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7313{
7314 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7315 struct wireless_dev *wdev;
7316 struct net_device *dev = info->user_ptr[1];
7317
d9d8b019 7318 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7319 return -EINVAL;
7320
7321 wdev = dev->ieee80211_ptr;
7322
7323 if (!rdev->ops->set_cqm_txe_config)
7324 return -EOPNOTSUPP;
7325
7326 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7327 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7328 return -EOPNOTSUPP;
7329
e35e4d28 7330 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7331}
7332
d6dc1a38
JO		 7333static int nl80211_set_cqm_rssi(struct genl_info *info,
7334 s32 threshold, u32 hysteresis)
7335{
4c476991 7336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 7337 struct wireless_dev *wdev;
4c476991 7338 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 7339
7340 if (threshold > 0)
7341 return -EINVAL;
7342
d6dc1a38
JO		 7343 wdev = dev->ieee80211_ptr;
7344
4c476991
JB		 7345 if (!rdev->ops->set_cqm_rssi_config)
7346 return -EOPNOTSUPP;
d6dc1a38 7347
074ac8df 7348 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7349 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7350 return -EOPNOTSUPP;
d6dc1a38 7351
e35e4d28 7352 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7353}
7354
7355static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7356{
7357 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7358 struct nlattr *cqm;
7359 int err;
7360
7361 cqm = info->attrs[NL80211_ATTR_CQM];
7362 if (!cqm) {
7363 err = -EINVAL;
7364 goto out;
7365 }
7366
7367 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7368 nl80211_attr_cqm_policy);
7369 if (err)
7370 goto out;
7371
7372 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7373 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7374 s32 threshold;
7375 u32 hysteresis;
7376 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7377 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7378 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7379 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7380 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7381 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7382 u32 rate, pkts, intvl;
7383 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7384 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7385 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7386 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7387 } else
7388 err = -EINVAL;
7389
7390out:
7391 return err;
7392}
7393
29cbe68c
JB		 7394static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7395{
7396 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7397 struct net_device *dev = info->user_ptr[1];
7398 struct mesh_config cfg;
c80d545d 7399 struct mesh_setup setup;
29cbe68c
JB		 7400 int err;
7401
7402 /* start with default */
7403 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7404 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7405
24bdd9f4 7406 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7407 /* and parse parameters if given */
24bdd9f4 7408 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7409 if (err)
7410 return err;
7411 }
7412
7413 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7414 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7415 return -EINVAL;
7416
c80d545d
JC		 7417 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7418 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7419
4bb62344
CYY		 7420 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7421 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7422 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7423 return -EINVAL;
7424
9bdbf04d
MP		 7425 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7426 setup.beacon_interval =
7427 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7428 if (setup.beacon_interval < 10 ||
7429 setup.beacon_interval > 10000)
7430 return -EINVAL;
7431 }
7432
7433 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7434 setup.dtim_period =
7435 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7436 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7437 return -EINVAL;
7438 }
7439
c80d545d
JC		 7440 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7441 /* parse additional setup parameters if given */
7442 err = nl80211_parse_mesh_setup(info, &setup);
7443 if (err)
7444 return err;
7445 }
7446
d37bb18a
TP		 7447 if (setup.user_mpm)
7448 cfg.auto_open_plinks = false;
7449
cc1d2806 7450 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7451 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7452 if (err)
7453 return err;
cc1d2806
JB		 7454 } else {
7455 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7456 setup.chandef.chan = NULL;
cc1d2806
JB		 7457 }
7458
c80d545d 7459 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7460}
7461
7462static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7463{
7464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7465 struct net_device *dev = info->user_ptr[1];
7466
7467 return cfg80211_leave_mesh(rdev, dev);
7468}
7469
dfb89c56 7470#ifdef CONFIG_PM
bb92d199
AK		 7471static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7472 struct cfg80211_registered_device *rdev)
7473{
7474 struct nlattr *nl_pats, *nl_pat;
7475 int i, pat_len;
7476
7477 if (!rdev->wowlan->n_patterns)
7478 return 0;
7479
7480 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7481 if (!nl_pats)
7482 return -ENOBUFS;
7483
7484 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7485 nl_pat = nla_nest_start(msg, i + 1);
7486 if (!nl_pat)
7487 return -ENOBUFS;
7488 pat_len = rdev->wowlan->patterns[i].pattern_len;
7489 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7490 DIV_ROUND_UP(pat_len, 8),
7491 rdev->wowlan->patterns[i].mask) ||
7492 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7493 pat_len, rdev->wowlan->patterns[i].pattern) ||
7494 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7495 rdev->wowlan->patterns[i].pkt_offset))
7496 return -ENOBUFS;
7497 nla_nest_end(msg, nl_pat);
7498 }
7499 nla_nest_end(msg, nl_pats);
7500
7501 return 0;
7502}
7503
2a0e047e
JB		 7504static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7505 struct cfg80211_wowlan_tcp *tcp)
7506{
7507 struct nlattr *nl_tcp;
7508
7509 if (!tcp)
7510 return 0;
7511
7512 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7513 if (!nl_tcp)
7514 return -ENOBUFS;
7515
7516 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7517 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7518 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7519 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7520 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7521 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7522 tcp->payload_len, tcp->payload) ||
7523 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7524 tcp->data_interval) ||
7525 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7526 tcp->wake_len, tcp->wake_data) ||
7527 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7528 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7529 return -ENOBUFS;
7530
7531 if (tcp->payload_seq.len &&
7532 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7533 sizeof(tcp->payload_seq), &tcp->payload_seq))
7534 return -ENOBUFS;
7535
7536 if (tcp->payload_tok.len &&
7537 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7538 sizeof(tcp->payload_tok) + tcp->tokens_size,
7539 &tcp->payload_tok))
7540 return -ENOBUFS;
7541
e248ad30
JB		 7542 nla_nest_end(msg, nl_tcp);
7543
2a0e047e
JB		 7544 return 0;
7545}
7546
ff1b6e69
JB		 7547static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7548{
7549 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7550 struct sk_buff *msg;
7551 void *hdr;
2a0e047e 7552 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7553
2a0e047e
JB		 7554 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7555 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7556 return -EOPNOTSUPP;
7557
2a0e047e
JB		 7558 if (rdev->wowlan && rdev->wowlan->tcp) {
7559 /* adjust size to have room for all the data */
7560 size += rdev->wowlan->tcp->tokens_size +
7561 rdev->wowlan->tcp->payload_len +
7562 rdev->wowlan->tcp->wake_len +
7563 rdev->wowlan->tcp->wake_len / 8;
7564 }
7565
7566 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7567 if (!msg)
7568 return -ENOMEM;
7569
15e47304 7570 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7571 NL80211_CMD_GET_WOWLAN);
7572 if (!hdr)
7573 goto nla_put_failure;
7574
7575 if (rdev->wowlan) {
7576 struct nlattr *nl_wowlan;
7577
7578 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7579 if (!nl_wowlan)
7580 goto nla_put_failure;
7581
9360ffd1
DM		 7582 if ((rdev->wowlan->any &&
7583 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7584 (rdev->wowlan->disconnect &&
7585 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7586 (rdev->wowlan->magic_pkt &&
7587 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7588 (rdev->wowlan->gtk_rekey_failure &&
7589 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7590 (rdev->wowlan->eap_identity_req &&
7591 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7592 (rdev->wowlan->four_way_handshake &&
7593 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7594 (rdev->wowlan->rfkill_release &&
7595 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7596 goto nla_put_failure;
2a0e047e 7597
bb92d199
AK		 7598 if (nl80211_send_wowlan_patterns(msg, rdev))
7599 goto nla_put_failure;
2a0e047e
JB		 7600
7601 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7602 goto nla_put_failure;
7603
ff1b6e69
JB		 7604 nla_nest_end(msg, nl_wowlan);
7605 }
7606
7607 genlmsg_end(msg, hdr);
7608 return genlmsg_reply(msg, info);
7609
7610nla_put_failure:
7611 nlmsg_free(msg);
7612 return -ENOBUFS;
7613}
7614
2a0e047e
JB		 7615static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7616 struct nlattr *attr,
7617 struct cfg80211_wowlan *trig)
7618{
7619 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7620 struct cfg80211_wowlan_tcp *cfg;
7621 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7622 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7623 u32 size;
7624 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7625 int err, port;
7626
7627 if (!rdev->wiphy.wowlan.tcp)
7628 return -EINVAL;
7629
7630 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7631 nla_data(attr), nla_len(attr),
7632 nl80211_wowlan_tcp_policy);
7633 if (err)
7634 return err;
7635
7636 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7637 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7638 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7639 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7640 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7641 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7642 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7643 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7644 return -EINVAL;
7645
7646 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7647 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7648 return -EINVAL;
7649
7650 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
723d568a
JB		 7651 rdev->wiphy.wowlan.tcp->data_interval_max ||
7652 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 7653 return -EINVAL;
7654
7655 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7656 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7657 return -EINVAL;
7658
7659 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7660 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7661 return -EINVAL;
7662
7663 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7664 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7665
7666 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7667 tokens_size = tokln - sizeof(*tok);
7668
7669 if (!tok->len || tokens_size % tok->len)
7670 return -EINVAL;
7671 if (!rdev->wiphy.wowlan.tcp->tok)
7672 return -EINVAL;
7673 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7674 return -EINVAL;
7675 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7676 return -EINVAL;
7677 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7678 return -EINVAL;
7679 if (tok->offset + tok->len > data_size)
7680 return -EINVAL;
7681 }
7682
7683 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7684 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7685 if (!rdev->wiphy.wowlan.tcp->seq)
7686 return -EINVAL;
7687 if (seq->len == 0 || seq->len > 4)
7688 return -EINVAL;
7689 if (seq->len + seq->offset > data_size)
7690 return -EINVAL;
7691 }
7692
7693 size = sizeof(*cfg);
7694 size += data_size;
7695 size += wake_size + wake_mask_size;
7696 size += tokens_size;
7697
7698 cfg = kzalloc(size, GFP_KERNEL);
7699 if (!cfg)
7700 return -ENOMEM;
7701 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7702 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7703 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7704 ETH_ALEN);
7705 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7706 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7707 else
7708 port = 0;
7709#ifdef CONFIG_INET
7710 /* allocate a socket and port for it and use it */
7711 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7712 IPPROTO_TCP, &cfg->sock, 1);
7713 if (err) {
7714 kfree(cfg);
7715 return err;
7716 }
7717 if (inet_csk_get_port(cfg->sock->sk, port)) {
7718 sock_release(cfg->sock);
7719 kfree(cfg);
7720 return -EADDRINUSE;
7721 }
7722 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7723#else
7724 if (!port) {
7725 kfree(cfg);
7726 return -EINVAL;
7727 }
7728 cfg->src_port = port;
7729#endif
7730
7731 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7732 cfg->payload_len = data_size;
7733 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7734 memcpy((void *)cfg->payload,
7735 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7736 data_size);
7737 if (seq)
7738 cfg->payload_seq = *seq;
7739 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7740 cfg->wake_len = wake_size;
7741 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7742 memcpy((void *)cfg->wake_data,
7743 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7744 wake_size);
7745 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7746 data_size + wake_size;
7747 memcpy((void *)cfg->wake_mask,
7748 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7749 wake_mask_size);
7750 if (tok) {
7751 cfg->tokens_size = tokens_size;
7752 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7753 }
7754
7755 trig->tcp = cfg;
7756
7757 return 0;
7758}
7759
ff1b6e69
JB		 7760static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7761{
7762 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7763 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7764 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7765 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 7766 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7767 int err, i;
6d52563f 7768 bool prev_enabled = rdev->wowlan;
ff1b6e69 7769
2a0e047e
JB		 7770 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7771 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7772 return -EOPNOTSUPP;
7773
ae33bd81
JB		 7774 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7775 cfg80211_rdev_free_wowlan(rdev);
7776 rdev->wowlan = NULL;
7777 goto set_wakeup;
7778 }
ff1b6e69
JB		 7779
7780 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7781 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7782 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7783 nl80211_wowlan_policy);
7784 if (err)
7785 return err;
7786
7787 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7788 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7789 return -EINVAL;
7790 new_triggers.any = true;
7791 }
7792
7793 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7794 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7795 return -EINVAL;
7796 new_triggers.disconnect = true;
7797 }
7798
7799 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7800 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7801 return -EINVAL;
7802 new_triggers.magic_pkt = true;
7803 }
7804
77dbbb13
JB		 7805 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7806 return -EINVAL;
7807
7808 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7809 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7810 return -EINVAL;
7811 new_triggers.gtk_rekey_failure = true;
7812 }
7813
7814 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7815 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7816 return -EINVAL;
7817 new_triggers.eap_identity_req = true;
7818 }
7819
7820 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7821 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7822 return -EINVAL;
7823 new_triggers.four_way_handshake = true;
7824 }
7825
7826 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7827 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7828 return -EINVAL;
7829 new_triggers.rfkill_release = true;
7830 }
7831
ff1b6e69
JB		 7832 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7833 struct nlattr *pat;
7834 int n_patterns = 0;
bb92d199 7835 int rem, pat_len, mask_len, pkt_offset;
ff1b6e69
JB		 7836 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7837
7838 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7839 rem)
7840 n_patterns++;
7841 if (n_patterns > wowlan->n_patterns)
7842 return -EINVAL;
7843
7844 new_triggers.patterns = kcalloc(n_patterns,
7845 sizeof(new_triggers.patterns[0]),
7846 GFP_KERNEL);
7847 if (!new_triggers.patterns)
7848 return -ENOMEM;
7849
7850 new_triggers.n_patterns = n_patterns;
7851 i = 0;
7852
7853 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7854 rem) {
7855 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7856 nla_data(pat), nla_len(pat), NULL);
7857 err = -EINVAL;
7858 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7859 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7860 goto error;
7861 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7862 mask_len = DIV_ROUND_UP(pat_len, 8);
7863 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7864 mask_len)
7865 goto error;
7866 if (pat_len > wowlan->pattern_max_len ||
7867 pat_len < wowlan->pattern_min_len)
7868 goto error;
7869
bb92d199
AK		 7870 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7871 pkt_offset = 0;
7872 else
7873 pkt_offset = nla_get_u32(
7874 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7875 if (pkt_offset > wowlan->max_pkt_offset)
7876 goto error;
7877 new_triggers.patterns[i].pkt_offset = pkt_offset;
7878
ff1b6e69
JB		 7879 new_triggers.patterns[i].mask =
7880 kmalloc(mask_len + pat_len, GFP_KERNEL);
7881 if (!new_triggers.patterns[i].mask) {
7882 err = -ENOMEM;
7883 goto error;
7884 }
7885 new_triggers.patterns[i].pattern =
7886 new_triggers.patterns[i].mask + mask_len;
7887 memcpy(new_triggers.patterns[i].mask,
7888 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7889 mask_len);
7890 new_triggers.patterns[i].pattern_len = pat_len;
7891 memcpy(new_triggers.patterns[i].pattern,
7892 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7893 pat_len);
7894 i++;
7895 }
7896 }
7897
2a0e047e
JB		 7898 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7899 err = nl80211_parse_wowlan_tcp(
7900 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7901 &new_triggers);
7902 if (err)
7903 goto error;
7904 }
7905
ae33bd81
JB		 7906 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7907 if (!ntrig) {
7908 err = -ENOMEM;
7909 goto error;
ff1b6e69 7910 }
ae33bd81
JB		 7911 cfg80211_rdev_free_wowlan(rdev);
7912 rdev->wowlan = ntrig;
ff1b6e69 7913
ae33bd81 7914 set_wakeup:
6d52563f 7915 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 7916 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 7917
ff1b6e69
JB		 7918 return 0;
7919 error:
7920 for (i = 0; i < new_triggers.n_patterns; i++)
7921 kfree(new_triggers.patterns[i].mask);
7922 kfree(new_triggers.patterns);
2a0e047e
JB		 7923 if (new_triggers.tcp && new_triggers.tcp->sock)
7924 sock_release(new_triggers.tcp->sock);
7925 kfree(new_triggers.tcp);
ff1b6e69
JB		 7926 return err;
7927}
dfb89c56 7928#endif
ff1b6e69 7929
e5497d76
JB		 7930static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7931{
7932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7933 struct net_device *dev = info->user_ptr[1];
7934 struct wireless_dev *wdev = dev->ieee80211_ptr;
7935 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7936 struct cfg80211_gtk_rekey_data rekey_data;
7937 int err;
7938
7939 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7940 return -EINVAL;
7941
7942 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7943 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7944 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7945 nl80211_rekey_policy);
7946 if (err)
7947 return err;
7948
7949 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7950 return -ERANGE;
7951 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7952 return -ERANGE;
7953 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7954 return -ERANGE;
7955
7956 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7957 NL80211_KEK_LEN);
7958 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7959 NL80211_KCK_LEN);
7960 memcpy(rekey_data.replay_ctr,
7961 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7962 NL80211_REPLAY_CTR_LEN);
7963
7964 wdev_lock(wdev);
7965 if (!wdev->current_bss) {
7966 err = -ENOTCONN;
7967 goto out;
7968 }
7969
7970 if (!rdev->ops->set_rekey_data) {
7971 err = -EOPNOTSUPP;
7972 goto out;
7973 }
7974
e35e4d28 7975 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 7976 out:
7977 wdev_unlock(wdev);
7978 return err;
7979}
7980
28946da7
JB		 7981static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7982 struct genl_info *info)
7983{
7984 struct net_device *dev = info->user_ptr[1];
7985 struct wireless_dev *wdev = dev->ieee80211_ptr;
7986
7987 if (wdev->iftype != NL80211_IFTYPE_AP &&
7988 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7989 return -EINVAL;
7990
15e47304 7991 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 7992 return -EBUSY;
7993
15e47304 7994 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 7995 return 0;
7996}
7997
7f6cf311
JB		 7998static int nl80211_probe_client(struct sk_buff *skb,
7999 struct genl_info *info)
8000{
8001 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8002 struct net_device *dev = info->user_ptr[1];
8003 struct wireless_dev *wdev = dev->ieee80211_ptr;
8004 struct sk_buff *msg;
8005 void *hdr;
8006 const u8 *addr;
8007 u64 cookie;
8008 int err;
8009
8010 if (wdev->iftype != NL80211_IFTYPE_AP &&
8011 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8012 return -EOPNOTSUPP;
8013
8014 if (!info->attrs[NL80211_ATTR_MAC])
8015 return -EINVAL;
8016
8017 if (!rdev->ops->probe_client)
8018 return -EOPNOTSUPP;
8019
8020 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8021 if (!msg)
8022 return -ENOMEM;
8023
15e47304 8024 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 8025 NL80211_CMD_PROBE_CLIENT);
8026
8027 if (IS_ERR(hdr)) {
8028 err = PTR_ERR(hdr);
8029 goto free_msg;
8030 }
8031
8032 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8033
e35e4d28 8034 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8035 if (err)
8036 goto free_msg;
8037
9360ffd1
DM		 8038 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8039 goto nla_put_failure;
7f6cf311
JB		 8040
8041 genlmsg_end(msg, hdr);
8042
8043 return genlmsg_reply(msg, info);
8044
8045 nla_put_failure:
8046 err = -ENOBUFS;
8047 free_msg:
8048 nlmsg_free(msg);
8049 return err;
8050}
8051
5e760230
JB		 8052static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8053{
8054 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8055 struct cfg80211_beacon_registration *reg, *nreg;
8056 int rv;
5e760230
JB		 8057
8058 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8059 return -EOPNOTSUPP;
8060
37c73b5f
BG		 8061 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8062 if (!nreg)
8063 return -ENOMEM;
8064
8065 /* First, check if already registered. */
8066 spin_lock_bh(&rdev->beacon_registrations_lock);
8067 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8068 if (reg->nlportid == info->snd_portid) {
8069 rv = -EALREADY;
8070 goto out_err;
8071 }
8072 }
8073 /* Add it to the list */
8074 nreg->nlportid = info->snd_portid;
8075 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8076
37c73b5f 8077 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8078
8079 return 0;
37c73b5f
BG		 8080out_err:
8081 spin_unlock_bh(&rdev->beacon_registrations_lock);
8082 kfree(nreg);
8083 return rv;
5e760230
JB		 8084}
8085
98104fde
JB		 8086static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8087{
8088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8089 struct wireless_dev *wdev = info->user_ptr[1];
8090 int err;
8091
8092 if (!rdev->ops->start_p2p_device)
8093 return -EOPNOTSUPP;
8094
8095 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8096 return -EOPNOTSUPP;
8097
8098 if (wdev->p2p_started)
8099 return 0;
8100
98104fde 8101 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8102 if (err)
8103 return err;
8104
eeb126e9 8105 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8106 if (err)
8107 return err;
8108
8109 wdev->p2p_started = true;
98104fde 8110 rdev->opencount++;
98104fde
JB		 8111
8112 return 0;
8113}
8114
8115static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8116{
8117 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8118 struct wireless_dev *wdev = info->user_ptr[1];
8119
8120 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8121 return -EOPNOTSUPP;
8122
8123 if (!rdev->ops->stop_p2p_device)
8124 return -EOPNOTSUPP;
8125
f9f47529 8126 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8127
8128 return 0;
8129}
8130
3713b4e3
JB		 8131static int nl80211_get_protocol_features(struct sk_buff *skb,
8132 struct genl_info *info)
8133{
8134 void *hdr;
8135 struct sk_buff *msg;
8136
8137 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8138 if (!msg)
8139 return -ENOMEM;
8140
8141 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8142 NL80211_CMD_GET_PROTOCOL_FEATURES);
8143 if (!hdr)
8144 goto nla_put_failure;
8145
8146 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8147 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8148 goto nla_put_failure;
8149
8150 genlmsg_end(msg, hdr);
8151 return genlmsg_reply(msg, info);
8152
8153 nla_put_failure:
8154 kfree_skb(msg);
8155 return -ENOBUFS;
8156}
8157
355199e0
JM		 8158static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8159{
8160 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8161 struct cfg80211_update_ft_ies_params ft_params;
8162 struct net_device *dev = info->user_ptr[1];
8163
8164 if (!rdev->ops->update_ft_ies)
8165 return -EOPNOTSUPP;
8166
8167 if (!info->attrs[NL80211_ATTR_MDID] ||
8168 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8169 return -EINVAL;
8170
8171 memset(&ft_params, 0, sizeof(ft_params));
8172 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8173 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8174 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8175
8176 return rdev_update_ft_ies(rdev, dev, &ft_params);
8177}
8178
5de17984
AS		 8179static int nl80211_crit_protocol_start(struct sk_buff *skb,
8180 struct genl_info *info)
8181{
8182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8183 struct wireless_dev *wdev = info->user_ptr[1];
8184 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8185 u16 duration;
8186 int ret;
8187
8188 if (!rdev->ops->crit_proto_start)
8189 return -EOPNOTSUPP;
8190
8191 if (WARN_ON(!rdev->ops->crit_proto_stop))
8192 return -EINVAL;
8193
8194 if (rdev->crit_proto_nlportid)
8195 return -EBUSY;
8196
8197 /* determine protocol if provided */
8198 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8199 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8200
8201 if (proto >= NUM_NL80211_CRIT_PROTO)
8202 return -EINVAL;
8203
8204 /* timeout must be provided */
8205 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8206 return -EINVAL;
8207
8208 duration =
8209 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8210
8211 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8212 return -ERANGE;
8213
8214 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8215 if (!ret)
8216 rdev->crit_proto_nlportid = info->snd_portid;
8217
8218 return ret;
8219}
8220
8221static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8222 struct genl_info *info)
8223{
8224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8225 struct wireless_dev *wdev = info->user_ptr[1];
8226
8227 if (!rdev->ops->crit_proto_stop)
8228 return -EOPNOTSUPP;
8229
8230 if (rdev->crit_proto_nlportid) {
8231 rdev->crit_proto_nlportid = 0;
8232 rdev_crit_proto_stop(rdev, wdev);
8233 }
8234 return 0;
8235}
8236
4c476991
JB		 8237#define NL80211_FLAG_NEED_WIPHY 0x01
8238#define NL80211_FLAG_NEED_NETDEV 0x02
8239#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8240#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8241#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8242 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8243#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8244/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8245#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8246 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 8247
8248static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8249 struct genl_info *info)
8250{
8251 struct cfg80211_registered_device *rdev;
89a54e48 8252 struct wireless_dev *wdev;
4c476991 8253 struct net_device *dev;
4c476991
JB		 8254 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8255
8256 if (rtnl)
8257 rtnl_lock();
8258
8259 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 8260 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 8261 if (IS_ERR(rdev)) {
8262 if (rtnl)
8263 rtnl_unlock();
8264 return PTR_ERR(rdev);
8265 }
8266 info->user_ptr[0] = rdev;
1bf614ef
JB		 8267 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8268 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 8269 ASSERT_RTNL();
8270
89a54e48
JB		 8271 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8272 info->attrs);
8273 if (IS_ERR(wdev)) {
4c476991
JB		 8274 if (rtnl)
8275 rtnl_unlock();
89a54e48 8276 return PTR_ERR(wdev);
4c476991 8277 }
89a54e48 8278
89a54e48
JB		 8279 dev = wdev->netdev;
8280 rdev = wiphy_to_dev(wdev->wiphy);
8281
1bf614ef
JB		 8282 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8283 if (!dev) {
1bf614ef
JB		 8284 if (rtnl)
8285 rtnl_unlock();
8286 return -EINVAL;
8287 }
8288
8289 info->user_ptr[1] = dev;
8290 } else {
8291 info->user_ptr[1] = wdev;
41265714 8292 }
1bf614ef
JB		 8293
8294 if (dev) {
8295 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8296 !netif_running(dev)) {
1bf614ef
JB		 8297 if (rtnl)
8298 rtnl_unlock();
8299 return -ENETDOWN;
8300 }
8301
8302 dev_hold(dev);
98104fde
JB		 8303 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8304 if (!wdev->p2p_started) {
98104fde
JB		 8305 if (rtnl)
8306 rtnl_unlock();
8307 return -ENETDOWN;
8308 }
41265714 8309 }
89a54e48 8310
4c476991 8311 info->user_ptr[0] = rdev;
4c476991
JB		 8312 }
8313
8314 return 0;
8315}
8316
8317static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8318 struct genl_info *info)
8319{
1bf614ef
JB		 8320 if (info->user_ptr[1]) {
8321 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8322 struct wireless_dev *wdev = info->user_ptr[1];
8323
8324 if (wdev->netdev)
8325 dev_put(wdev->netdev);
8326 } else {
8327 dev_put(info->user_ptr[1]);
8328 }
8329 }
4c476991
JB		 8330 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8331 rtnl_unlock();
8332}
8333
55682965
JB		 8334static struct genl_ops nl80211_ops[] = {
8335 {
8336 .cmd = NL80211_CMD_GET_WIPHY,
8337 .doit = nl80211_get_wiphy,
8338 .dumpit = nl80211_dump_wiphy,
8339 .policy = nl80211_policy,
8340 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8341 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8342 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8343 },
8344 {
8345 .cmd = NL80211_CMD_SET_WIPHY,
8346 .doit = nl80211_set_wiphy,
8347 .policy = nl80211_policy,
8348 .flags = GENL_ADMIN_PERM,
4c476991 8349 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 8350 },
8351 {
8352 .cmd = NL80211_CMD_GET_INTERFACE,
8353 .doit = nl80211_get_interface,
8354 .dumpit = nl80211_dump_interface,
8355 .policy = nl80211_policy,
8356 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8357 .internal_flags = NL80211_FLAG_NEED_WDEV |
8358 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8359 },
8360 {
8361 .cmd = NL80211_CMD_SET_INTERFACE,
8362 .doit = nl80211_set_interface,
8363 .policy = nl80211_policy,
8364 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8365 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8366 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8367 },
8368 {
8369 .cmd = NL80211_CMD_NEW_INTERFACE,
8370 .doit = nl80211_new_interface,
8371 .policy = nl80211_policy,
8372 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8373 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8374 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8375 },
8376 {
8377 .cmd = NL80211_CMD_DEL_INTERFACE,
8378 .doit = nl80211_del_interface,
8379 .policy = nl80211_policy,
41ade00f 8380 .flags = GENL_ADMIN_PERM,
84efbb84 8381 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8382 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8383 },
8384 {
8385 .cmd = NL80211_CMD_GET_KEY,
8386 .doit = nl80211_get_key,
8387 .policy = nl80211_policy,
8388 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8389 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8390 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8391 },
8392 {
8393 .cmd = NL80211_CMD_SET_KEY,
8394 .doit = nl80211_set_key,
8395 .policy = nl80211_policy,
8396 .flags = GENL_ADMIN_PERM,
41265714 8397 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8398 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8399 },
8400 {
8401 .cmd = NL80211_CMD_NEW_KEY,
8402 .doit = nl80211_new_key,
8403 .policy = nl80211_policy,
8404 .flags = GENL_ADMIN_PERM,
41265714 8405 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8406 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8407 },
8408 {
8409 .cmd = NL80211_CMD_DEL_KEY,
8410 .doit = nl80211_del_key,
8411 .policy = nl80211_policy,
55682965 8412 .flags = GENL_ADMIN_PERM,
41265714 8413 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8414 NL80211_FLAG_NEED_RTNL,
55682965 8415 },
ed1b6cc7
JB		 8416 {
8417 .cmd = NL80211_CMD_SET_BEACON,
8418 .policy = nl80211_policy,
8419 .flags = GENL_ADMIN_PERM,
8860020e 8420 .doit = nl80211_set_beacon,
2b5f8b0b 8421 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8422 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8423 },
8424 {
8860020e 8425 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 8426 .policy = nl80211_policy,
8427 .flags = GENL_ADMIN_PERM,
8860020e 8428 .doit = nl80211_start_ap,
2b5f8b0b 8429 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8430 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8431 },
8432 {
8860020e 8433 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 8434 .policy = nl80211_policy,
8435 .flags = GENL_ADMIN_PERM,
8860020e 8436 .doit = nl80211_stop_ap,
2b5f8b0b 8437 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8438 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 8439 },
5727ef1b
JB		 8440 {
8441 .cmd = NL80211_CMD_GET_STATION,
8442 .doit = nl80211_get_station,
2ec600d6 8443 .dumpit = nl80211_dump_station,
5727ef1b 8444 .policy = nl80211_policy,
4c476991
JB		 8445 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8446 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8447 },
8448 {
8449 .cmd = NL80211_CMD_SET_STATION,
8450 .doit = nl80211_set_station,
8451 .policy = nl80211_policy,
8452 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8453 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8454 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8455 },
8456 {
8457 .cmd = NL80211_CMD_NEW_STATION,
8458 .doit = nl80211_new_station,
8459 .policy = nl80211_policy,
8460 .flags = GENL_ADMIN_PERM,
41265714 8461 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8462 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8463 },
8464 {
8465 .cmd = NL80211_CMD_DEL_STATION,
8466 .doit = nl80211_del_station,
8467 .policy = nl80211_policy,
2ec600d6 8468 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8470 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8471 },
8472 {
8473 .cmd = NL80211_CMD_GET_MPATH,
8474 .doit = nl80211_get_mpath,
8475 .dumpit = nl80211_dump_mpath,
8476 .policy = nl80211_policy,
8477 .flags = GENL_ADMIN_PERM,
41265714 8478 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8479 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8480 },
8481 {
8482 .cmd = NL80211_CMD_SET_MPATH,
8483 .doit = nl80211_set_mpath,
8484 .policy = nl80211_policy,
8485 .flags = GENL_ADMIN_PERM,
41265714 8486 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8487 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8488 },
8489 {
8490 .cmd = NL80211_CMD_NEW_MPATH,
8491 .doit = nl80211_new_mpath,
8492 .policy = nl80211_policy,
8493 .flags = GENL_ADMIN_PERM,
41265714 8494 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8495 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8496 },
8497 {
8498 .cmd = NL80211_CMD_DEL_MPATH,
8499 .doit = nl80211_del_mpath,
8500 .policy = nl80211_policy,
9f1ba906 8501 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8502 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8503 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 8504 },
8505 {
8506 .cmd = NL80211_CMD_SET_BSS,
8507 .doit = nl80211_set_bss,
8508 .policy = nl80211_policy,
b2e1b302 8509 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8510 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8511 NL80211_FLAG_NEED_RTNL,
b2e1b302 8512 },
f130347c
LR		 8513 {
8514 .cmd = NL80211_CMD_GET_REG,
8515 .doit = nl80211_get_reg,
8516 .policy = nl80211_policy,
5fe231e8 8517 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 8518 /* can be retrieved by unprivileged users */
8519 },
b2e1b302
LR		 8520 {
8521 .cmd = NL80211_CMD_SET_REG,
8522 .doit = nl80211_set_reg,
8523 .policy = nl80211_policy,
8524 .flags = GENL_ADMIN_PERM,
5fe231e8 8525 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 8526 },
8527 {
8528 .cmd = NL80211_CMD_REQ_SET_REG,
8529 .doit = nl80211_req_set_reg,
8530 .policy = nl80211_policy,
93da9cc1 8531 .flags = GENL_ADMIN_PERM,
8532 },
8533 {
24bdd9f4
JC		 8534 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8535 .doit = nl80211_get_mesh_config,
93da9cc1 8536 .policy = nl80211_policy,
8537 /* can be retrieved by unprivileged users */
2b5f8b0b 8538 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8539 NL80211_FLAG_NEED_RTNL,
93da9cc1 8540 },
8541 {
24bdd9f4
JC		 8542 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8543 .doit = nl80211_update_mesh_config,
93da9cc1 8544 .policy = nl80211_policy,
9aed3cc1 8545 .flags = GENL_ADMIN_PERM,
29cbe68c 8546 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8547 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8548 },
2a519311
JB		 8549 {
8550 .cmd = NL80211_CMD_TRIGGER_SCAN,
8551 .doit = nl80211_trigger_scan,
8552 .policy = nl80211_policy,
8553 .flags = GENL_ADMIN_PERM,
fd014284 8554 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8555 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8556 },
8557 {
8558 .cmd = NL80211_CMD_GET_SCAN,
8559 .policy = nl80211_policy,
8560 .dumpit = nl80211_dump_scan,
8561 },
807f8a8c
LC		 8562 {
8563 .cmd = NL80211_CMD_START_SCHED_SCAN,
8564 .doit = nl80211_start_sched_scan,
8565 .policy = nl80211_policy,
8566 .flags = GENL_ADMIN_PERM,
8567 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8568 NL80211_FLAG_NEED_RTNL,
8569 },
8570 {
8571 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8572 .doit = nl80211_stop_sched_scan,
8573 .policy = nl80211_policy,
8574 .flags = GENL_ADMIN_PERM,
8575 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8576 NL80211_FLAG_NEED_RTNL,
8577 },
636a5d36
JM		 8578 {
8579 .cmd = NL80211_CMD_AUTHENTICATE,
8580 .doit = nl80211_authenticate,
8581 .policy = nl80211_policy,
8582 .flags = GENL_ADMIN_PERM,
41265714 8583 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8584 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8585 },
8586 {
8587 .cmd = NL80211_CMD_ASSOCIATE,
8588 .doit = nl80211_associate,
8589 .policy = nl80211_policy,
8590 .flags = GENL_ADMIN_PERM,
41265714 8591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8592 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8593 },
8594 {
8595 .cmd = NL80211_CMD_DEAUTHENTICATE,
8596 .doit = nl80211_deauthenticate,
8597 .policy = nl80211_policy,
8598 .flags = GENL_ADMIN_PERM,
41265714 8599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8600 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8601 },
8602 {
8603 .cmd = NL80211_CMD_DISASSOCIATE,
8604 .doit = nl80211_disassociate,
8605 .policy = nl80211_policy,
8606 .flags = GENL_ADMIN_PERM,
41265714 8607 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8608 NL80211_FLAG_NEED_RTNL,
636a5d36 8609 },
04a773ad
JB		 8610 {
8611 .cmd = NL80211_CMD_JOIN_IBSS,
8612 .doit = nl80211_join_ibss,
8613 .policy = nl80211_policy,
8614 .flags = GENL_ADMIN_PERM,
41265714 8615 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8616 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 8617 },
8618 {
8619 .cmd = NL80211_CMD_LEAVE_IBSS,
8620 .doit = nl80211_leave_ibss,
8621 .policy = nl80211_policy,
8622 .flags = GENL_ADMIN_PERM,
41265714 8623 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8624 NL80211_FLAG_NEED_RTNL,
04a773ad 8625 },
aff89a9b
JB		 8626#ifdef CONFIG_NL80211_TESTMODE
8627 {
8628 .cmd = NL80211_CMD_TESTMODE,
8629 .doit = nl80211_testmode_do,
71063f0e 8630 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 8631 .policy = nl80211_policy,
8632 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8633 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8634 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 8635 },
8636#endif
b23aa676
SO		 8637 {
8638 .cmd = NL80211_CMD_CONNECT,
8639 .doit = nl80211_connect,
8640 .policy = nl80211_policy,
8641 .flags = GENL_ADMIN_PERM,
41265714 8642 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8643 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 8644 },
8645 {
8646 .cmd = NL80211_CMD_DISCONNECT,
8647 .doit = nl80211_disconnect,
8648 .policy = nl80211_policy,
8649 .flags = GENL_ADMIN_PERM,
41265714 8650 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8651 NL80211_FLAG_NEED_RTNL,
b23aa676 8652 },
463d0183
JB		 8653 {
8654 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8655 .doit = nl80211_wiphy_netns,
8656 .policy = nl80211_policy,
8657 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8658 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8659 NL80211_FLAG_NEED_RTNL,
463d0183 8660 },
61fa713c
HS		 8661 {
8662 .cmd = NL80211_CMD_GET_SURVEY,
8663 .policy = nl80211_policy,
8664 .dumpit = nl80211_dump_survey,
8665 },
67fbb16b
SO		 8666 {
8667 .cmd = NL80211_CMD_SET_PMKSA,
8668 .doit = nl80211_setdel_pmksa,
8669 .policy = nl80211_policy,
8670 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8671 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8672 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8673 },
8674 {
8675 .cmd = NL80211_CMD_DEL_PMKSA,
8676 .doit = nl80211_setdel_pmksa,
8677 .policy = nl80211_policy,
8678 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8679 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8680 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8681 },
8682 {
8683 .cmd = NL80211_CMD_FLUSH_PMKSA,
8684 .doit = nl80211_flush_pmksa,
8685 .policy = nl80211_policy,
8686 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8687 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8688 NL80211_FLAG_NEED_RTNL,
67fbb16b 8689 },
9588bbd5
JM		 8690 {
8691 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8692 .doit = nl80211_remain_on_channel,
8693 .policy = nl80211_policy,
8694 .flags = GENL_ADMIN_PERM,
71bbc994 8695 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8696 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 8697 },
8698 {
8699 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8700 .doit = nl80211_cancel_remain_on_channel,
8701 .policy = nl80211_policy,
8702 .flags = GENL_ADMIN_PERM,
71bbc994 8703 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8704 NL80211_FLAG_NEED_RTNL,
9588bbd5 8705 },
13ae75b1
JM		 8706 {
8707 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8708 .doit = nl80211_set_tx_bitrate_mask,
8709 .policy = nl80211_policy,
8710 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8711 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8712 NL80211_FLAG_NEED_RTNL,
13ae75b1 8713 },
026331c4 8714 {
2e161f78
JB		 8715 .cmd = NL80211_CMD_REGISTER_FRAME,
8716 .doit = nl80211_register_mgmt,
026331c4
JM		 8717 .policy = nl80211_policy,
8718 .flags = GENL_ADMIN_PERM,
71bbc994 8719 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8720 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 8721 },
8722 {
2e161f78
JB		 8723 .cmd = NL80211_CMD_FRAME,
8724 .doit = nl80211_tx_mgmt,
026331c4 8725 .policy = nl80211_policy,
f7ca38df 8726 .flags = GENL_ADMIN_PERM,
71bbc994 8727 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 8728 NL80211_FLAG_NEED_RTNL,
8729 },
8730 {
8731 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8732 .doit = nl80211_tx_mgmt_cancel_wait,
8733 .policy = nl80211_policy,
026331c4 8734 .flags = GENL_ADMIN_PERM,
71bbc994 8735 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8736 NL80211_FLAG_NEED_RTNL,
026331c4 8737 },
ffb9eb3d
KV		 8738 {
8739 .cmd = NL80211_CMD_SET_POWER_SAVE,
8740 .doit = nl80211_set_power_save,
8741 .policy = nl80211_policy,
8742 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8743 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8744 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 8745 },
8746 {
8747 .cmd = NL80211_CMD_GET_POWER_SAVE,
8748 .doit = nl80211_get_power_save,
8749 .policy = nl80211_policy,
8750 /* can be retrieved by unprivileged users */
4c476991
JB		 8751 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8752 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 8753 },
d6dc1a38
JO		 8754 {
8755 .cmd = NL80211_CMD_SET_CQM,
8756 .doit = nl80211_set_cqm,
8757 .policy = nl80211_policy,
8758 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8759 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8760 NL80211_FLAG_NEED_RTNL,
d6dc1a38 8761 },
f444de05
JB		 8762 {
8763 .cmd = NL80211_CMD_SET_CHANNEL,
8764 .doit = nl80211_set_channel,
8765 .policy = nl80211_policy,
8766 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8767 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8768 NL80211_FLAG_NEED_RTNL,
f444de05 8769 },
e8347eba
BJ		 8770 {
8771 .cmd = NL80211_CMD_SET_WDS_PEER,
8772 .doit = nl80211_set_wds_peer,
8773 .policy = nl80211_policy,
8774 .flags = GENL_ADMIN_PERM,
43b19952
JB		 8775 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8776 NL80211_FLAG_NEED_RTNL,
e8347eba 8777 },
29cbe68c
JB		 8778 {
8779 .cmd = NL80211_CMD_JOIN_MESH,
8780 .doit = nl80211_join_mesh,
8781 .policy = nl80211_policy,
8782 .flags = GENL_ADMIN_PERM,
8783 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8784 NL80211_FLAG_NEED_RTNL,
8785 },
8786 {
8787 .cmd = NL80211_CMD_LEAVE_MESH,
8788 .doit = nl80211_leave_mesh,
8789 .policy = nl80211_policy,
8790 .flags = GENL_ADMIN_PERM,
8791 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8792 NL80211_FLAG_NEED_RTNL,
8793 },
dfb89c56 8794#ifdef CONFIG_PM
ff1b6e69
JB		 8795 {
8796 .cmd = NL80211_CMD_GET_WOWLAN,
8797 .doit = nl80211_get_wowlan,
8798 .policy = nl80211_policy,
8799 /* can be retrieved by unprivileged users */
8800 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8801 NL80211_FLAG_NEED_RTNL,
8802 },
8803 {
8804 .cmd = NL80211_CMD_SET_WOWLAN,
8805 .doit = nl80211_set_wowlan,
8806 .policy = nl80211_policy,
8807 .flags = GENL_ADMIN_PERM,
8808 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8809 NL80211_FLAG_NEED_RTNL,
8810 },
dfb89c56 8811#endif
e5497d76
JB		 8812 {
8813 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8814 .doit = nl80211_set_rekey_data,
8815 .policy = nl80211_policy,
8816 .flags = GENL_ADMIN_PERM,
8817 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8818 NL80211_FLAG_NEED_RTNL,
8819 },
109086ce
AN		 8820 {
8821 .cmd = NL80211_CMD_TDLS_MGMT,
8822 .doit = nl80211_tdls_mgmt,
8823 .policy = nl80211_policy,
8824 .flags = GENL_ADMIN_PERM,
8825 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8826 NL80211_FLAG_NEED_RTNL,
8827 },
8828 {
8829 .cmd = NL80211_CMD_TDLS_OPER,
8830 .doit = nl80211_tdls_oper,
8831 .policy = nl80211_policy,
8832 .flags = GENL_ADMIN_PERM,
8833 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8834 NL80211_FLAG_NEED_RTNL,
8835 },
28946da7
JB		 8836 {
8837 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8838 .doit = nl80211_register_unexpected_frame,
8839 .policy = nl80211_policy,
8840 .flags = GENL_ADMIN_PERM,
8841 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8842 NL80211_FLAG_NEED_RTNL,
8843 },
7f6cf311
JB		 8844 {
8845 .cmd = NL80211_CMD_PROBE_CLIENT,
8846 .doit = nl80211_probe_client,
8847 .policy = nl80211_policy,
8848 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8849 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 8850 NL80211_FLAG_NEED_RTNL,
8851 },
5e760230
JB		 8852 {
8853 .cmd = NL80211_CMD_REGISTER_BEACONS,
8854 .doit = nl80211_register_beacons,
8855 .policy = nl80211_policy,
8856 .flags = GENL_ADMIN_PERM,
8857 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8858 NL80211_FLAG_NEED_RTNL,
8859 },
1d9d9213
SW		 8860 {
8861 .cmd = NL80211_CMD_SET_NOACK_MAP,
8862 .doit = nl80211_set_noack_map,
8863 .policy = nl80211_policy,
8864 .flags = GENL_ADMIN_PERM,
8865 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8866 NL80211_FLAG_NEED_RTNL,
8867 },
98104fde
JB		 8868 {
8869 .cmd = NL80211_CMD_START_P2P_DEVICE,
8870 .doit = nl80211_start_p2p_device,
8871 .policy = nl80211_policy,
8872 .flags = GENL_ADMIN_PERM,
8873 .internal_flags = NL80211_FLAG_NEED_WDEV |
8874 NL80211_FLAG_NEED_RTNL,
8875 },
8876 {
8877 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8878 .doit = nl80211_stop_p2p_device,
8879 .policy = nl80211_policy,
8880 .flags = GENL_ADMIN_PERM,
8881 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8882 NL80211_FLAG_NEED_RTNL,
8883 },
f4e583c8
AQ		 8884 {
8885 .cmd = NL80211_CMD_SET_MCAST_RATE,
8886 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 8887 .policy = nl80211_policy,
8888 .flags = GENL_ADMIN_PERM,
8889 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8890 NL80211_FLAG_NEED_RTNL,
8891 },
8892 {
8893 .cmd = NL80211_CMD_SET_MAC_ACL,
8894 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 8895 .policy = nl80211_policy,
8896 .flags = GENL_ADMIN_PERM,
8897 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8898 NL80211_FLAG_NEED_RTNL,
8899 },
04f39047
SW		 8900 {
8901 .cmd = NL80211_CMD_RADAR_DETECT,
8902 .doit = nl80211_start_radar_detection,
8903 .policy = nl80211_policy,
8904 .flags = GENL_ADMIN_PERM,
8905 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8906 NL80211_FLAG_NEED_RTNL,
8907 },
3713b4e3
JB		 8908 {
8909 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
8910 .doit = nl80211_get_protocol_features,
8911 .policy = nl80211_policy,
8912 },
355199e0
JM		 8913 {
8914 .cmd = NL80211_CMD_UPDATE_FT_IES,
8915 .doit = nl80211_update_ft_ies,
8916 .policy = nl80211_policy,
8917 .flags = GENL_ADMIN_PERM,
8918 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8919 NL80211_FLAG_NEED_RTNL,
8920 },
5de17984
AS		 8921 {
8922 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
8923 .doit = nl80211_crit_protocol_start,
8924 .policy = nl80211_policy,
8925 .flags = GENL_ADMIN_PERM,
8926 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8927 NL80211_FLAG_NEED_RTNL,
8928 },
8929 {
8930 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
8931 .doit = nl80211_crit_protocol_stop,
8932 .policy = nl80211_policy,
8933 .flags = GENL_ADMIN_PERM,
8934 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8935 NL80211_FLAG_NEED_RTNL,
8936 }
55682965 8937};
9588bbd5 8938
6039f6d2
JM		 8939static struct genl_multicast_group nl80211_mlme_mcgrp = {
8940 .name = "mlme",
8941};
55682965
JB		 8942
8943/* multicast groups */
8944static struct genl_multicast_group nl80211_config_mcgrp = {
8945 .name = "config",
8946};
2a519311
JB		 8947static struct genl_multicast_group nl80211_scan_mcgrp = {
8948 .name = "scan",
8949};
73d54c9e
LR		 8950static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8951 .name = "regulatory",
8952};
55682965
JB		 8953
8954/* notification functions */
8955
8956void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8957{
8958 struct sk_buff *msg;
8959
fd2120ca 8960 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 8961 if (!msg)
8962 return;
8963
3713b4e3
JB		 8964 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
8965 false, NULL, NULL, NULL) < 0) {
55682965
JB		 8966 nlmsg_free(msg);
8967 return;
8968 }
8969
463d0183
JB		 8970 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8971 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 8972}
8973
362a415d
JB		 8974static int nl80211_add_scan_req(struct sk_buff *msg,
8975 struct cfg80211_registered_device *rdev)
8976{
8977 struct cfg80211_scan_request *req = rdev->scan_req;
8978 struct nlattr *nest;
8979 int i;
8980
8981 if (WARN_ON(!req))
8982 return 0;
8983
8984 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
8985 if (!nest)
8986 goto nla_put_failure;
9360ffd1
DM		 8987 for (i = 0; i < req->n_ssids; i++) {
8988 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
8989 goto nla_put_failure;
8990 }
362a415d
JB		 8991 nla_nest_end(msg, nest);
8992
8993 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8994 if (!nest)
8995 goto nla_put_failure;
9360ffd1
DM		 8996 for (i = 0; i < req->n_channels; i++) {
8997 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
8998 goto nla_put_failure;
8999 }
362a415d
JB		 9000 nla_nest_end(msg, nest);
9001
9360ffd1
DM		 9002 if (req->ie &&
9003 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9004 goto nla_put_failure;
362a415d 9005
ed473771
SL		 9006 if (req->flags)
9007 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9008
362a415d
JB		 9009 return 0;
9010 nla_put_failure:
9011 return -ENOBUFS;
9012}
9013
a538e2d5
JB		 9014static int nl80211_send_scan_msg(struct sk_buff *msg,
9015 struct cfg80211_registered_device *rdev,
fd014284 9016 struct wireless_dev *wdev,
15e47304 9017 u32 portid, u32 seq, int flags,
a538e2d5 9018 u32 cmd)
2a519311
JB		 9019{
9020 void *hdr;
9021
15e47304 9022 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9023 if (!hdr)
9024 return -1;
9025
9360ffd1 9026 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9027 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9028 wdev->netdev->ifindex)) ||
9029 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9030 goto nla_put_failure;
2a519311 9031
362a415d
JB		 9032 /* ignore errors and send incomplete event anyway */
9033 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9034
9035 return genlmsg_end(msg, hdr);
9036
9037 nla_put_failure:
9038 genlmsg_cancel(msg, hdr);
9039 return -EMSGSIZE;
9040}
9041
807f8a8c
LC		 9042static int
9043nl80211_send_sched_scan_msg(struct sk_buff *msg,
9044 struct cfg80211_registered_device *rdev,
9045 struct net_device *netdev,
15e47304 9046 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9047{
9048 void *hdr;
9049
15e47304 9050 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9051 if (!hdr)
9052 return -1;
9053
9360ffd1
DM		 9054 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9055 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9056 goto nla_put_failure;
807f8a8c
LC		 9057
9058 return genlmsg_end(msg, hdr);
9059
9060 nla_put_failure:
9061 genlmsg_cancel(msg, hdr);
9062 return -EMSGSIZE;
9063}
9064
a538e2d5 9065void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9066 struct wireless_dev *wdev)
a538e2d5
JB		 9067{
9068 struct sk_buff *msg;
9069
58050fce 9070 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9071 if (!msg)
9072 return;
9073
fd014284 9074 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9075 NL80211_CMD_TRIGGER_SCAN) < 0) {
9076 nlmsg_free(msg);
9077 return;
9078 }
9079
463d0183
JB		 9080 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9081 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 9082}
9083
2a519311 9084void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9085 struct wireless_dev *wdev)
2a519311
JB		 9086{
9087 struct sk_buff *msg;
9088
fd2120ca 9089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9090 if (!msg)
9091 return;
9092
fd014284 9093 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9094 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9095 nlmsg_free(msg);
9096 return;
9097 }
9098
463d0183
JB		 9099 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9100 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9101}
9102
9103void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9104 struct wireless_dev *wdev)
2a519311
JB		 9105{
9106 struct sk_buff *msg;
9107
fd2120ca 9108 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9109 if (!msg)
9110 return;
9111
fd014284 9112 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9113 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9114 nlmsg_free(msg);
9115 return;
9116 }
9117
463d0183
JB		 9118 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9119 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9120}
9121
807f8a8c
LC		 9122void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9123 struct net_device *netdev)
9124{
9125 struct sk_buff *msg;
9126
9127 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9128 if (!msg)
9129 return;
9130
9131 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9132 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9133 nlmsg_free(msg);
9134 return;
9135 }
9136
9137 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9138 nl80211_scan_mcgrp.id, GFP_KERNEL);
9139}
9140
9141void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9142 struct net_device *netdev, u32 cmd)
9143{
9144 struct sk_buff *msg;
9145
58050fce 9146 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9147 if (!msg)
9148 return;
9149
9150 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9151 nlmsg_free(msg);
9152 return;
9153 }
9154
9155 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9156 nl80211_scan_mcgrp.id, GFP_KERNEL);
9157}
9158
73d54c9e
LR		 9159/*
9160 * This can happen on global regulatory changes or device specific settings
9161 * based on custom world regulatory domains.
9162 */
9163void nl80211_send_reg_change_event(struct regulatory_request *request)
9164{
9165 struct sk_buff *msg;
9166 void *hdr;
9167
fd2120ca 9168 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9169 if (!msg)
9170 return;
9171
9172 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9173 if (!hdr) {
9174 nlmsg_free(msg);
9175 return;
9176 }
9177
9178 /* Userspace can always count this one always being set */
9360ffd1
DM		 9179 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9180 goto nla_put_failure;
9181
9182 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9183 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9184 NL80211_REGDOM_TYPE_WORLD))
9185 goto nla_put_failure;
9186 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9187 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9188 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9189 goto nla_put_failure;
9190 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9191 request->intersect) {
9192 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9193 NL80211_REGDOM_TYPE_INTERSECTION))
9194 goto nla_put_failure;
9195 } else {
9196 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9197 NL80211_REGDOM_TYPE_COUNTRY) ||
9198 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9199 request->alpha2))
9200 goto nla_put_failure;
9201 }
9202
f4173766 9203 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9204 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9205 goto nla_put_failure;
73d54c9e 9206
3b7b72ee 9207 genlmsg_end(msg, hdr);
73d54c9e 9208
bc43b28c 9209 rcu_read_lock();
463d0183 9210 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 9211 GFP_ATOMIC);
9212 rcu_read_unlock();
73d54c9e
LR		 9213
9214 return;
9215
9216nla_put_failure:
9217 genlmsg_cancel(msg, hdr);
9218 nlmsg_free(msg);
9219}
9220
6039f6d2
JM		 9221static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9222 struct net_device *netdev,
9223 const u8 *buf, size_t len,
e6d6e342 9224 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9225{
9226 struct sk_buff *msg;
9227 void *hdr;
9228
e6d6e342 9229 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9230 if (!msg)
9231 return;
9232
9233 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9234 if (!hdr) {
9235 nlmsg_free(msg);
9236 return;
9237 }
9238
9360ffd1
DM		 9239 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9240 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9241 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9242 goto nla_put_failure;
6039f6d2 9243
3b7b72ee 9244 genlmsg_end(msg, hdr);
6039f6d2 9245
463d0183
JB		 9246 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9247 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 9248 return;
9249
9250 nla_put_failure:
9251 genlmsg_cancel(msg, hdr);
9252 nlmsg_free(msg);
9253}
9254
9255void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9256 struct net_device *netdev, const u8 *buf,
9257 size_t len, gfp_t gfp)
6039f6d2
JM		 9258{
9259 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9260 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 9261}
9262
9263void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9264 struct net_device *netdev, const u8 *buf,
e6d6e342 9265 size_t len, gfp_t gfp)
6039f6d2 9266{
e6d6e342
JB		 9267 nl80211_send_mlme_event(rdev, netdev, buf, len,
9268 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 9269}
9270
53b46b84 9271void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9272 struct net_device *netdev, const u8 *buf,
9273 size_t len, gfp_t gfp)
6039f6d2
JM		 9274{
9275 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9276 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 9277}
9278
53b46b84
JM		 9279void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9280 struct net_device *netdev, const u8 *buf,
e6d6e342 9281 size_t len, gfp_t gfp)
6039f6d2
JM		 9282{
9283 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9284 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 9285}
9286
947add36
JB		 9287void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
9288 size_t len)
cf4e594e 9289{
947add36
JB		 9290 struct wireless_dev *wdev = dev->ieee80211_ptr;
9291 struct wiphy *wiphy = wdev->wiphy;
9292 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9293
9294 trace_cfg80211_send_unprot_deauth(dev);
9295 nl80211_send_mlme_event(rdev, dev, buf, len,
9296 NL80211_CMD_UNPROT_DEAUTHENTICATE, GFP_ATOMIC);
cf4e594e 9297}
947add36 9298EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
cf4e594e 9299
947add36
JB		 9300void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
9301 size_t len)
cf4e594e 9302{
947add36
JB		 9303 struct wireless_dev *wdev = dev->ieee80211_ptr;
9304 struct wiphy *wiphy = wdev->wiphy;
9305 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9306
9307 trace_cfg80211_send_unprot_disassoc(dev);
9308 nl80211_send_mlme_event(rdev, dev, buf, len,
9309 NL80211_CMD_UNPROT_DISASSOCIATE, GFP_ATOMIC);
cf4e594e 9310}
947add36 9311EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
cf4e594e 9312
1b06bb40
LR		 9313static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9314 struct net_device *netdev, int cmd,
e6d6e342 9315 const u8 *addr, gfp_t gfp)
1965c853
JM		 9316{
9317 struct sk_buff *msg;
9318 void *hdr;
9319
e6d6e342 9320 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 9321 if (!msg)
9322 return;
9323
9324 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9325 if (!hdr) {
9326 nlmsg_free(msg);
9327 return;
9328 }
9329
9360ffd1
DM		 9330 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9331 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9332 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9333 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9334 goto nla_put_failure;
1965c853 9335
3b7b72ee 9336 genlmsg_end(msg, hdr);
1965c853 9337
463d0183
JB		 9338 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9339 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 9340 return;
9341
9342 nla_put_failure:
9343 genlmsg_cancel(msg, hdr);
9344 nlmsg_free(msg);
9345}
9346
9347void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9348 struct net_device *netdev, const u8 *addr,
9349 gfp_t gfp)
1965c853
JM		 9350{
9351 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 9352 addr, gfp);
1965c853
JM		 9353}
9354
9355void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9356 struct net_device *netdev, const u8 *addr,
9357 gfp_t gfp)
1965c853 9358{
e6d6e342
JB		 9359 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9360 addr, gfp);
1965c853
JM		 9361}
9362
b23aa676
SO		 9363void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9364 struct net_device *netdev, const u8 *bssid,
9365 const u8 *req_ie, size_t req_ie_len,
9366 const u8 *resp_ie, size_t resp_ie_len,
9367 u16 status, gfp_t gfp)
9368{
9369 struct sk_buff *msg;
9370 void *hdr;
9371
58050fce 9372 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9373 if (!msg)
9374 return;
9375
9376 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9377 if (!hdr) {
9378 nlmsg_free(msg);
9379 return;
9380 }
9381
9360ffd1
DM		 9382 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9383 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9384 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9385 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9386 (req_ie &&
9387 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9388 (resp_ie &&
9389 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9390 goto nla_put_failure;
b23aa676 9391
3b7b72ee 9392 genlmsg_end(msg, hdr);
b23aa676 9393
463d0183
JB		 9394 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9395 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9396 return;
9397
9398 nla_put_failure:
9399 genlmsg_cancel(msg, hdr);
9400 nlmsg_free(msg);
9401
9402}
9403
9404void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9405 struct net_device *netdev, const u8 *bssid,
9406 const u8 *req_ie, size_t req_ie_len,
9407 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9408{
9409 struct sk_buff *msg;
9410 void *hdr;
9411
58050fce 9412 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9413 if (!msg)
9414 return;
9415
9416 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9417 if (!hdr) {
9418 nlmsg_free(msg);
9419 return;
9420 }
9421
9360ffd1
DM		 9422 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9423 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9424 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9425 (req_ie &&
9426 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9427 (resp_ie &&
9428 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9429 goto nla_put_failure;
b23aa676 9430
3b7b72ee 9431 genlmsg_end(msg, hdr);
b23aa676 9432
463d0183
JB		 9433 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9434 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9435 return;
9436
9437 nla_put_failure:
9438 genlmsg_cancel(msg, hdr);
9439 nlmsg_free(msg);
9440
9441}
9442
9443void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9444 struct net_device *netdev, u16 reason,
667503dd 9445 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 9446{
9447 struct sk_buff *msg;
9448 void *hdr;
9449
58050fce 9450 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 9451 if (!msg)
9452 return;
9453
9454 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9455 if (!hdr) {
9456 nlmsg_free(msg);
9457 return;
9458 }
9459
9360ffd1
DM		 9460 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9461 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9462 (from_ap && reason &&
9463 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9464 (from_ap &&
9465 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9466 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9467 goto nla_put_failure;
b23aa676 9468
3b7b72ee 9469 genlmsg_end(msg, hdr);
b23aa676 9470
463d0183
JB		 9471 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9472 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 9473 return;
9474
9475 nla_put_failure:
9476 genlmsg_cancel(msg, hdr);
9477 nlmsg_free(msg);
9478
9479}
9480
04a773ad
JB		 9481void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9482 struct net_device *netdev, const u8 *bssid,
9483 gfp_t gfp)
9484{
9485 struct sk_buff *msg;
9486 void *hdr;
9487
fd2120ca 9488 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 9489 if (!msg)
9490 return;
9491
9492 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9493 if (!hdr) {
9494 nlmsg_free(msg);
9495 return;
9496 }
9497
9360ffd1
DM		 9498 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9499 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9500 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9501 goto nla_put_failure;
04a773ad 9502
3b7b72ee 9503 genlmsg_end(msg, hdr);
04a773ad 9504
463d0183
JB		 9505 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9506 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 9507 return;
9508
9509 nla_put_failure:
9510 genlmsg_cancel(msg, hdr);
9511 nlmsg_free(msg);
9512}
9513
947add36
JB		 9514void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9515 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 9516{
947add36
JB		 9517 struct wireless_dev *wdev = dev->ieee80211_ptr;
9518 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 9519 struct sk_buff *msg;
9520 void *hdr;
9521
947add36
JB		 9522 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9523 return;
9524
9525 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9526
c93b5e71
JC		 9527 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9528 if (!msg)
9529 return;
9530
9531 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9532 if (!hdr) {
9533 nlmsg_free(msg);
9534 return;
9535 }
9536
9360ffd1 9537 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 9538 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9539 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 9540 (ie_len && ie &&
9541 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9542 goto nla_put_failure;
c93b5e71 9543
3b7b72ee 9544 genlmsg_end(msg, hdr);
c93b5e71
JC		 9545
9546 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9547 nl80211_mlme_mcgrp.id, gfp);
9548 return;
9549
9550 nla_put_failure:
9551 genlmsg_cancel(msg, hdr);
9552 nlmsg_free(msg);
9553}
947add36 9554EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 9555
a3b8b056
JM		 9556void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9557 struct net_device *netdev, const u8 *addr,
9558 enum nl80211_key_type key_type, int key_id,
e6d6e342 9559 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9560{
9561 struct sk_buff *msg;
9562 void *hdr;
9563
e6d6e342 9564 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9565 if (!msg)
9566 return;
9567
9568 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9569 if (!hdr) {
9570 nlmsg_free(msg);
9571 return;
9572 }
9573
9360ffd1
DM		 9574 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9575 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9576 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9577 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9578 (key_id != -1 &&
9579 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9580 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9581 goto nla_put_failure;
a3b8b056 9582
3b7b72ee 9583 genlmsg_end(msg, hdr);
a3b8b056 9584
463d0183
JB		 9585 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9586 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 9587 return;
9588
9589 nla_put_failure:
9590 genlmsg_cancel(msg, hdr);
9591 nlmsg_free(msg);
9592}
9593
6bad8766
LR		 9594void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9595 struct ieee80211_channel *channel_before,
9596 struct ieee80211_channel *channel_after)
9597{
9598 struct sk_buff *msg;
9599 void *hdr;
9600 struct nlattr *nl_freq;
9601
fd2120ca 9602 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 9603 if (!msg)
9604 return;
9605
9606 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9607 if (!hdr) {
9608 nlmsg_free(msg);
9609 return;
9610 }
9611
9612 /*
9613 * Since we are applying the beacon hint to a wiphy we know its
9614 * wiphy_idx is valid
9615 */
9360ffd1
DM		 9616 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9617 goto nla_put_failure;
6bad8766
LR		 9618
9619 /* Before */
9620 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9621 if (!nl_freq)
9622 goto nla_put_failure;
cdc89b97 9623 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 9624 goto nla_put_failure;
9625 nla_nest_end(msg, nl_freq);
9626
9627 /* After */
9628 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9629 if (!nl_freq)
9630 goto nla_put_failure;
cdc89b97 9631 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 9632 goto nla_put_failure;
9633 nla_nest_end(msg, nl_freq);
9634
3b7b72ee 9635 genlmsg_end(msg, hdr);
6bad8766 9636
463d0183
JB		 9637 rcu_read_lock();
9638 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9639 GFP_ATOMIC);
9640 rcu_read_unlock();
6bad8766
LR		 9641
9642 return;
9643
9644nla_put_failure:
9645 genlmsg_cancel(msg, hdr);
9646 nlmsg_free(msg);
9647}
9648
9588bbd5
JM		 9649static void nl80211_send_remain_on_chan_event(
9650 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 9651 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9652 struct ieee80211_channel *chan,
9588bbd5
JM		 9653 unsigned int duration, gfp_t gfp)
9654{
9655 struct sk_buff *msg;
9656 void *hdr;
9657
9658 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9659 if (!msg)
9660 return;
9661
9662 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9663 if (!hdr) {
9664 nlmsg_free(msg);
9665 return;
9666 }
9667
9360ffd1 9668 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9669 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9670 wdev->netdev->ifindex)) ||
00f53350 9671 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 9672 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 9673 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9674 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 9675 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9676 goto nla_put_failure;
9588bbd5 9677
9360ffd1
DM		 9678 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9679 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9680 goto nla_put_failure;
9588bbd5 9681
3b7b72ee 9682 genlmsg_end(msg, hdr);
9588bbd5
JM		 9683
9684 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9685 nl80211_mlme_mcgrp.id, gfp);
9686 return;
9687
9688 nla_put_failure:
9689 genlmsg_cancel(msg, hdr);
9690 nlmsg_free(msg);
9691}
9692
947add36
JB		 9693void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9694 struct ieee80211_channel *chan,
9695 unsigned int duration, gfp_t gfp)
9588bbd5 9696{
947add36
JB		 9697 struct wiphy *wiphy = wdev->wiphy;
9698 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9699
9700 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 9701 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 9702 rdev, wdev, cookie, chan,
42d97a59 9703 duration, gfp);
9588bbd5 9704}
947add36 9705EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 9706
947add36
JB		 9707void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9708 struct ieee80211_channel *chan,
9709 gfp_t gfp)
9588bbd5 9710{
947add36
JB		 9711 struct wiphy *wiphy = wdev->wiphy;
9712 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9713
9714 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 9715 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 9716 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 9717}
947add36 9718EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 9719
947add36
JB		 9720void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9721 struct station_info *sinfo, gfp_t gfp)
98b62183 9722{
947add36
JB		 9723 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9724 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 9725 struct sk_buff *msg;
9726
947add36
JB		 9727 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9728
58050fce 9729 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 9730 if (!msg)
9731 return;
9732
66266b3a
JL		 9733 if (nl80211_send_station(msg, 0, 0, 0,
9734 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 9735 nlmsg_free(msg);
9736 return;
9737 }
9738
9739 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9740 nl80211_mlme_mcgrp.id, gfp);
9741}
947add36 9742EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 9743
947add36 9744void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 9745{
947add36
JB		 9746 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9747 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 9748 struct sk_buff *msg;
9749 void *hdr;
9750
947add36
JB		 9751 trace_cfg80211_del_sta(dev, mac_addr);
9752
58050fce 9753 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 9754 if (!msg)
9755 return;
9756
9757 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9758 if (!hdr) {
9759 nlmsg_free(msg);
9760 return;
9761 }
9762
9360ffd1
DM		 9763 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9764 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9765 goto nla_put_failure;
ec15e68b 9766
3b7b72ee 9767 genlmsg_end(msg, hdr);
ec15e68b
JM		 9768
9769 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9770 nl80211_mlme_mcgrp.id, gfp);
9771 return;
9772
9773 nla_put_failure:
9774 genlmsg_cancel(msg, hdr);
9775 nlmsg_free(msg);
9776}
947add36 9777EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 9778
947add36
JB		 9779void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
9780 enum nl80211_connect_failed_reason reason,
9781 gfp_t gfp)
ed44a951 9782{
947add36
JB		 9783 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9784 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 9785 struct sk_buff *msg;
9786 void *hdr;
9787
9788 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9789 if (!msg)
9790 return;
9791
9792 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9793 if (!hdr) {
9794 nlmsg_free(msg);
9795 return;
9796 }
9797
9798 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9799 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9800 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9801 goto nla_put_failure;
9802
9803 genlmsg_end(msg, hdr);
9804
9805 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9806 nl80211_mlme_mcgrp.id, gfp);
9807 return;
9808
9809 nla_put_failure:
9810 genlmsg_cancel(msg, hdr);
9811 nlmsg_free(msg);
9812}
947add36 9813EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 9814
b92ab5d8
JB		 9815static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9816 const u8 *addr, gfp_t gfp)
28946da7
JB		 9817{
9818 struct wireless_dev *wdev = dev->ieee80211_ptr;
9819 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9820 struct sk_buff *msg;
9821 void *hdr;
9822 int err;
15e47304 9823 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 9824
15e47304 9825 if (!nlportid)
28946da7
JB		 9826 return false;
9827
9828 msg = nlmsg_new(100, gfp);
9829 if (!msg)
9830 return true;
9831
b92ab5d8 9832 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 9833 if (!hdr) {
9834 nlmsg_free(msg);
9835 return true;
9836 }
9837
9360ffd1
DM		 9838 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9839 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9840 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9841 goto nla_put_failure;
28946da7
JB		 9842
9843 err = genlmsg_end(msg, hdr);
9844 if (err < 0) {
9845 nlmsg_free(msg);
9846 return true;
9847 }
9848
15e47304 9849 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 9850 return true;
9851
9852 nla_put_failure:
9853 genlmsg_cancel(msg, hdr);
9854 nlmsg_free(msg);
9855 return true;
9856}
9857
947add36
JB		 9858bool cfg80211_rx_spurious_frame(struct net_device *dev,
9859 const u8 *addr, gfp_t gfp)
b92ab5d8 9860{
947add36
JB		 9861 struct wireless_dev *wdev = dev->ieee80211_ptr;
9862 bool ret;
9863
9864 trace_cfg80211_rx_spurious_frame(dev, addr);
9865
9866 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9867 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
9868 trace_cfg80211_return_bool(false);
9869 return false;
9870 }
9871 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9872 addr, gfp);
9873 trace_cfg80211_return_bool(ret);
9874 return ret;
b92ab5d8 9875}
947add36 9876EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 9877
947add36
JB		 9878bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
9879 const u8 *addr, gfp_t gfp)
b92ab5d8 9880{
947add36
JB		 9881 struct wireless_dev *wdev = dev->ieee80211_ptr;
9882 bool ret;
9883
9884 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
9885
9886 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9887 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
9888 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
9889 trace_cfg80211_return_bool(false);
9890 return false;
9891 }
9892 ret = __nl80211_unexpected_frame(dev,
9893 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9894 addr, gfp);
9895 trace_cfg80211_return_bool(ret);
9896 return ret;
b92ab5d8 9897}
947add36 9898EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 9899
2e161f78 9900int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 9901 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 9902 int freq, int sig_dbm,
9903 const u8 *buf, size_t len, gfp_t gfp)
026331c4 9904{
71bbc994 9905 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9906 struct sk_buff *msg;
9907 void *hdr;
026331c4
JM		 9908
9909 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9910 if (!msg)
9911 return -ENOMEM;
9912
2e161f78 9913 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 9914 if (!hdr) {
9915 nlmsg_free(msg);
9916 return -ENOMEM;
9917 }
9918
9360ffd1 9919 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9920 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9921 netdev->ifindex)) ||
a838490b 9922 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 9923 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9924 (sig_dbm &&
9925 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9926 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9927 goto nla_put_failure;
026331c4 9928
3b7b72ee 9929 genlmsg_end(msg, hdr);
026331c4 9930
15e47304 9931 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 9932
9933 nla_put_failure:
9934 genlmsg_cancel(msg, hdr);
9935 nlmsg_free(msg);
9936 return -ENOBUFS;
9937}
9938
947add36
JB		 9939void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
9940 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 9941{
947add36
JB		 9942 struct wiphy *wiphy = wdev->wiphy;
9943 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 9944 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9945 struct sk_buff *msg;
9946 void *hdr;
9947
947add36
JB		 9948 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
9949
026331c4
JM		 9950 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9951 if (!msg)
9952 return;
9953
2e161f78 9954 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 9955 if (!hdr) {
9956 nlmsg_free(msg);
9957 return;
9958 }
9959
9360ffd1 9960 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9961 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9962 netdev->ifindex)) ||
a838490b 9963 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 9964 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9965 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9966 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9967 goto nla_put_failure;
026331c4 9968
3b7b72ee 9969 genlmsg_end(msg, hdr);
026331c4
JM		 9970
9971 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9972 return;
9973
9974 nla_put_failure:
9975 genlmsg_cancel(msg, hdr);
9976 nlmsg_free(msg);
9977}
947add36 9978EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 9979
947add36
JB		 9980void cfg80211_cqm_rssi_notify(struct net_device *dev,
9981 enum nl80211_cqm_rssi_threshold_event rssi_event,
9982 gfp_t gfp)
d6dc1a38 9983{
947add36
JB		 9984 struct wireless_dev *wdev = dev->ieee80211_ptr;
9985 struct wiphy *wiphy = wdev->wiphy;
9986 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 9987 struct sk_buff *msg;
9988 struct nlattr *pinfoattr;
9989 void *hdr;
9990
947add36
JB		 9991 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
9992
58050fce 9993 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 9994 if (!msg)
9995 return;
9996
9997 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9998 if (!hdr) {
9999 nlmsg_free(msg);
10000 return;
10001 }
10002
9360ffd1 10003 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10004 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10005 goto nla_put_failure;
d6dc1a38
JO		 10006
10007 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10008 if (!pinfoattr)
10009 goto nla_put_failure;
10010
9360ffd1
DM		 10011 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10012 rssi_event))
10013 goto nla_put_failure;
d6dc1a38
JO		 10014
10015 nla_nest_end(msg, pinfoattr);
10016
3b7b72ee 10017 genlmsg_end(msg, hdr);
d6dc1a38
JO		 10018
10019 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10020 nl80211_mlme_mcgrp.id, gfp);
10021 return;
10022
10023 nla_put_failure:
10024 genlmsg_cancel(msg, hdr);
10025 nlmsg_free(msg);
10026}
947add36 10027EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10028
947add36
JB		 10029static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10030 struct net_device *netdev, const u8 *bssid,
10031 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10032{
10033 struct sk_buff *msg;
10034 struct nlattr *rekey_attr;
10035 void *hdr;
10036
58050fce 10037 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10038 if (!msg)
10039 return;
10040
10041 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10042 if (!hdr) {
10043 nlmsg_free(msg);
10044 return;
10045 }
10046
9360ffd1
DM		 10047 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10048 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10049 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10050 goto nla_put_failure;
e5497d76
JB		 10051
10052 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10053 if (!rekey_attr)
10054 goto nla_put_failure;
10055
9360ffd1
DM		 10056 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10057 NL80211_REPLAY_CTR_LEN, replay_ctr))
10058 goto nla_put_failure;
e5497d76
JB		 10059
10060 nla_nest_end(msg, rekey_attr);
10061
3b7b72ee 10062 genlmsg_end(msg, hdr);
e5497d76
JB		 10063
10064 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10065 nl80211_mlme_mcgrp.id, gfp);
10066 return;
10067
10068 nla_put_failure:
10069 genlmsg_cancel(msg, hdr);
10070 nlmsg_free(msg);
10071}
10072
947add36
JB		 10073void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10074 const u8 *replay_ctr, gfp_t gfp)
10075{
10076 struct wireless_dev *wdev = dev->ieee80211_ptr;
10077 struct wiphy *wiphy = wdev->wiphy;
10078 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10079
10080 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10081 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10082}
10083EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10084
10085static void
10086nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10087 struct net_device *netdev, int index,
10088 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10089{
10090 struct sk_buff *msg;
10091 struct nlattr *attr;
10092 void *hdr;
10093
58050fce 10094 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10095 if (!msg)
10096 return;
10097
10098 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10099 if (!hdr) {
10100 nlmsg_free(msg);
10101 return;
10102 }
10103
9360ffd1
DM		 10104 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10105 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10106 goto nla_put_failure;
c9df56b4
JM		 10107
10108 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10109 if (!attr)
10110 goto nla_put_failure;
10111
9360ffd1
DM		 10112 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10113 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10114 (preauth &&
10115 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10116 goto nla_put_failure;
c9df56b4
JM		 10117
10118 nla_nest_end(msg, attr);
10119
3b7b72ee 10120 genlmsg_end(msg, hdr);
c9df56b4
JM		 10121
10122 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10123 nl80211_mlme_mcgrp.id, gfp);
10124 return;
10125
10126 nla_put_failure:
10127 genlmsg_cancel(msg, hdr);
10128 nlmsg_free(msg);
10129}
10130
947add36
JB		 10131void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10132 const u8 *bssid, bool preauth, gfp_t gfp)
10133{
10134 struct wireless_dev *wdev = dev->ieee80211_ptr;
10135 struct wiphy *wiphy = wdev->wiphy;
10136 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10137
10138 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10139 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10140}
10141EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10142
10143static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10144 struct net_device *netdev,
10145 struct cfg80211_chan_def *chandef,
10146 gfp_t gfp)
5314526b
TP		 10147{
10148 struct sk_buff *msg;
10149 void *hdr;
10150
58050fce 10151 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10152 if (!msg)
10153 return;
10154
10155 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10156 if (!hdr) {
10157 nlmsg_free(msg);
10158 return;
10159 }
10160
683b6d3b
JB		 10161 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10162 goto nla_put_failure;
10163
10164 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10165 goto nla_put_failure;
5314526b
TP		 10166
10167 genlmsg_end(msg, hdr);
10168
10169 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10170 nl80211_mlme_mcgrp.id, gfp);
10171 return;
10172
10173 nla_put_failure:
10174 genlmsg_cancel(msg, hdr);
10175 nlmsg_free(msg);
10176}
10177
947add36
JB		 10178void cfg80211_ch_switch_notify(struct net_device *dev,
10179 struct cfg80211_chan_def *chandef)
84f10708 10180{
947add36
JB		 10181 struct wireless_dev *wdev = dev->ieee80211_ptr;
10182 struct wiphy *wiphy = wdev->wiphy;
10183 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10184
10185 trace_cfg80211_ch_switch_notify(dev, chandef);
10186
10187 wdev_lock(wdev);
10188
10189 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10190 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10191 goto out;
10192
10193 wdev->channel = chandef->chan;
10194 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10195out:
10196 wdev_unlock(wdev);
10197 return;
10198}
10199EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10200
10201void cfg80211_cqm_txe_notify(struct net_device *dev,
10202 const u8 *peer, u32 num_packets,
10203 u32 rate, u32 intvl, gfp_t gfp)
10204{
10205 struct wireless_dev *wdev = dev->ieee80211_ptr;
10206 struct wiphy *wiphy = wdev->wiphy;
10207 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 10208 struct sk_buff *msg;
10209 struct nlattr *pinfoattr;
10210 void *hdr;
10211
10212 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10213 if (!msg)
10214 return;
10215
10216 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10217 if (!hdr) {
10218 nlmsg_free(msg);
10219 return;
10220 }
10221
10222 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10223 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10224 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10225 goto nla_put_failure;
10226
10227 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10228 if (!pinfoattr)
10229 goto nla_put_failure;
10230
10231 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10232 goto nla_put_failure;
10233
10234 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10235 goto nla_put_failure;
10236
10237 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10238 goto nla_put_failure;
10239
10240 nla_nest_end(msg, pinfoattr);
10241
10242 genlmsg_end(msg, hdr);
10243
10244 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10245 nl80211_mlme_mcgrp.id, gfp);
10246 return;
10247
10248 nla_put_failure:
10249 genlmsg_cancel(msg, hdr);
10250 nlmsg_free(msg);
10251}
947add36 10252EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 10253
04f39047
SW		 10254void
10255nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10256 struct cfg80211_chan_def *chandef,
10257 enum nl80211_radar_event event,
10258 struct net_device *netdev, gfp_t gfp)
10259{
10260 struct sk_buff *msg;
10261 void *hdr;
10262
10263 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10264 if (!msg)
10265 return;
10266
10267 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10268 if (!hdr) {
10269 nlmsg_free(msg);
10270 return;
10271 }
10272
10273 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10274 goto nla_put_failure;
10275
10276 /* NOP and radar events don't need a netdev parameter */
10277 if (netdev) {
10278 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10279
10280 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10281 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10282 goto nla_put_failure;
10283 }
10284
10285 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10286 goto nla_put_failure;
10287
10288 if (nl80211_send_chandef(msg, chandef))
10289 goto nla_put_failure;
10290
10291 if (genlmsg_end(msg, hdr) < 0) {
10292 nlmsg_free(msg);
10293 return;
10294 }
10295
10296 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10297 nl80211_mlme_mcgrp.id, gfp);
10298 return;
10299
10300 nla_put_failure:
10301 genlmsg_cancel(msg, hdr);
10302 nlmsg_free(msg);
10303}
10304
947add36
JB		 10305void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10306 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 10307{
947add36
JB		 10308 struct wireless_dev *wdev = dev->ieee80211_ptr;
10309 struct wiphy *wiphy = wdev->wiphy;
10310 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 10311 struct sk_buff *msg;
10312 struct nlattr *pinfoattr;
10313 void *hdr;
10314
947add36
JB		 10315 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10316
58050fce 10317 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 10318 if (!msg)
10319 return;
10320
10321 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10322 if (!hdr) {
10323 nlmsg_free(msg);
10324 return;
10325 }
10326
9360ffd1 10327 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10328 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 10329 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10330 goto nla_put_failure;
c063dbf5
JB		 10331
10332 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10333 if (!pinfoattr)
10334 goto nla_put_failure;
10335
9360ffd1
DM		 10336 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10337 goto nla_put_failure;
c063dbf5
JB		 10338
10339 nla_nest_end(msg, pinfoattr);
10340
3b7b72ee 10341 genlmsg_end(msg, hdr);
c063dbf5
JB		 10342
10343 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10344 nl80211_mlme_mcgrp.id, gfp);
10345 return;
10346
10347 nla_put_failure:
10348 genlmsg_cancel(msg, hdr);
10349 nlmsg_free(msg);
10350}
947add36 10351EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 10352
7f6cf311
JB		 10353void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10354 u64 cookie, bool acked, gfp_t gfp)
10355{
10356 struct wireless_dev *wdev = dev->ieee80211_ptr;
10357 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10358 struct sk_buff *msg;
10359 void *hdr;
10360 int err;
10361
4ee3e063
BL		 10362 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10363
58050fce 10364 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 10365
7f6cf311
JB		 10366 if (!msg)
10367 return;
10368
10369 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10370 if (!hdr) {
10371 nlmsg_free(msg);
10372 return;
10373 }
10374
9360ffd1
DM		 10375 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10376 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10377 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10378 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10379 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10380 goto nla_put_failure;
7f6cf311
JB		 10381
10382 err = genlmsg_end(msg, hdr);
10383 if (err < 0) {
10384 nlmsg_free(msg);
10385 return;
10386 }
10387
10388 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10389 nl80211_mlme_mcgrp.id, gfp);
10390 return;
10391
10392 nla_put_failure:
10393 genlmsg_cancel(msg, hdr);
10394 nlmsg_free(msg);
10395}
10396EXPORT_SYMBOL(cfg80211_probe_status);
10397
5e760230
JB		 10398void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10399 const u8 *frame, size_t len,
37c73b5f 10400 int freq, int sig_dbm)
5e760230
JB		 10401{
10402 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10403 struct sk_buff *msg;
10404 void *hdr;
37c73b5f 10405 struct cfg80211_beacon_registration *reg;
5e760230 10406
4ee3e063
BL		 10407 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10408
37c73b5f
BG		 10409 spin_lock_bh(&rdev->beacon_registrations_lock);
10410 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10411 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10412 if (!msg) {
10413 spin_unlock_bh(&rdev->beacon_registrations_lock);
10414 return;
10415 }
5e760230 10416
37c73b5f
BG		 10417 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10418 if (!hdr)
10419 goto nla_put_failure;
5e760230 10420
37c73b5f
BG		 10421 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10422 (freq &&
10423 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10424 (sig_dbm &&
10425 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10426 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10427 goto nla_put_failure;
5e760230 10428
37c73b5f 10429 genlmsg_end(msg, hdr);
5e760230 10430
37c73b5f
BG		 10431 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10432 }
10433 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10434 return;
10435
10436 nla_put_failure:
37c73b5f
BG		 10437 spin_unlock_bh(&rdev->beacon_registrations_lock);
10438 if (hdr)
10439 genlmsg_cancel(msg, hdr);
5e760230
JB		 10440 nlmsg_free(msg);
10441}
10442EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10443
cd8f7cb4
JB		 10444#ifdef CONFIG_PM
10445void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10446 struct cfg80211_wowlan_wakeup *wakeup,
10447 gfp_t gfp)
10448{
10449 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10450 struct sk_buff *msg;
10451 void *hdr;
10452 int err, size = 200;
10453
10454 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10455
10456 if (wakeup)
10457 size += wakeup->packet_present_len;
10458
10459 msg = nlmsg_new(size, gfp);
10460 if (!msg)
10461 return;
10462
10463 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10464 if (!hdr)
10465 goto free_msg;
10466
10467 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10468 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10469 goto free_msg;
10470
10471 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10472 wdev->netdev->ifindex))
10473 goto free_msg;
10474
10475 if (wakeup) {
10476 struct nlattr *reasons;
10477
10478 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10479
10480 if (wakeup->disconnect &&
10481 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10482 goto free_msg;
10483 if (wakeup->magic_pkt &&
10484 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10485 goto free_msg;
10486 if (wakeup->gtk_rekey_failure &&
10487 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10488 goto free_msg;
10489 if (wakeup->eap_identity_req &&
10490 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10491 goto free_msg;
10492 if (wakeup->four_way_handshake &&
10493 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10494 goto free_msg;
10495 if (wakeup->rfkill_release &&
10496 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10497 goto free_msg;
10498
10499 if (wakeup->pattern_idx >= 0 &&
10500 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10501 wakeup->pattern_idx))
10502 goto free_msg;
10503
2a0e047e
JB		 10504 if (wakeup->tcp_match)
10505 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10506
10507 if (wakeup->tcp_connlost)
10508 nla_put_flag(msg,
10509 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10510
10511 if (wakeup->tcp_nomoretokens)
10512 nla_put_flag(msg,
10513 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10514
cd8f7cb4
JB		 10515 if (wakeup->packet) {
10516 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10517 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10518
10519 if (!wakeup->packet_80211) {
10520 pkt_attr =
10521 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10522 len_attr =
10523 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10524 }
10525
10526 if (wakeup->packet_len &&
10527 nla_put_u32(msg, len_attr, wakeup->packet_len))
10528 goto free_msg;
10529
10530 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10531 wakeup->packet))
10532 goto free_msg;
10533 }
10534
10535 nla_nest_end(msg, reasons);
10536 }
10537
10538 err = genlmsg_end(msg, hdr);
10539 if (err < 0)
10540 goto free_msg;
10541
10542 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10543 nl80211_mlme_mcgrp.id, gfp);
10544 return;
10545
10546 free_msg:
10547 nlmsg_free(msg);
10548}
10549EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10550#endif
10551
3475b094
JM		 10552void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10553 enum nl80211_tdls_operation oper,
10554 u16 reason_code, gfp_t gfp)
10555{
10556 struct wireless_dev *wdev = dev->ieee80211_ptr;
10557 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10558 struct sk_buff *msg;
10559 void *hdr;
10560 int err;
10561
10562 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10563 reason_code);
10564
10565 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10566 if (!msg)
10567 return;
10568
10569 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10570 if (!hdr) {
10571 nlmsg_free(msg);
10572 return;
10573 }
10574
10575 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10576 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10577 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10578 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10579 (reason_code > 0 &&
10580 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10581 goto nla_put_failure;
10582
10583 err = genlmsg_end(msg, hdr);
10584 if (err < 0) {
10585 nlmsg_free(msg);
10586 return;
10587 }
10588
10589 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10590 nl80211_mlme_mcgrp.id, gfp);
10591 return;
10592
10593 nla_put_failure:
10594 genlmsg_cancel(msg, hdr);
10595 nlmsg_free(msg);
10596}
10597EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10598
026331c4
JM		 10599static int nl80211_netlink_notify(struct notifier_block * nb,
10600 unsigned long state,
10601 void *_notify)
10602{
10603 struct netlink_notify *notify = _notify;
10604 struct cfg80211_registered_device *rdev;
10605 struct wireless_dev *wdev;
37c73b5f 10606 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 10607
10608 if (state != NETLINK_URELEASE)
10609 return NOTIFY_DONE;
10610
10611 rcu_read_lock();
10612
5e760230 10613 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 10614 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 10615 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 10616
10617 spin_lock_bh(&rdev->beacon_registrations_lock);
10618 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10619 list) {
10620 if (reg->nlportid == notify->portid) {
10621 list_del(&reg->list);
10622 kfree(reg);
10623 break;
10624 }
10625 }
10626 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 10627 }
026331c4
JM		 10628
10629 rcu_read_unlock();
10630
10631 return NOTIFY_DONE;
10632}
10633
10634static struct notifier_block nl80211_netlink_notifier = {
10635 .notifier_call = nl80211_netlink_notify,
10636};
10637
355199e0
JM		 10638void cfg80211_ft_event(struct net_device *netdev,
10639 struct cfg80211_ft_event_params *ft_event)
10640{
10641 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10642 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10643 struct sk_buff *msg;
10644 void *hdr;
10645 int err;
10646
10647 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10648
10649 if (!ft_event->target_ap)
10650 return;
10651
10652 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10653 if (!msg)
10654 return;
10655
10656 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10657 if (!hdr) {
10658 nlmsg_free(msg);
10659 return;
10660 }
10661
10662 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10663 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10664 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10665 if (ft_event->ies)
10666 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10667 if (ft_event->ric_ies)
10668 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10669 ft_event->ric_ies);
10670
10671 err = genlmsg_end(msg, hdr);
10672 if (err < 0) {
10673 nlmsg_free(msg);
10674 return;
10675 }
10676
10677 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10678 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10679}
10680EXPORT_SYMBOL(cfg80211_ft_event);
10681
5de17984
AS		 10682void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
10683{
10684 struct cfg80211_registered_device *rdev;
10685 struct sk_buff *msg;
10686 void *hdr;
10687 u32 nlportid;
10688
10689 rdev = wiphy_to_dev(wdev->wiphy);
10690 if (!rdev->crit_proto_nlportid)
10691 return;
10692
10693 nlportid = rdev->crit_proto_nlportid;
10694 rdev->crit_proto_nlportid = 0;
10695
10696 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10697 if (!msg)
10698 return;
10699
10700 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
10701 if (!hdr)
10702 goto nla_put_failure;
10703
10704 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10705 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10706 goto nla_put_failure;
10707
10708 genlmsg_end(msg, hdr);
10709
10710 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10711 return;
10712
10713 nla_put_failure:
10714 if (hdr)
10715 genlmsg_cancel(msg, hdr);
10716 nlmsg_free(msg);
10717
10718}
10719EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
10720
55682965
JB		 10721/* initialisation/exit functions */
10722
10723int nl80211_init(void)
10724{
0d63cbb5 10725 int err;
55682965 10726
0d63cbb5
MM		 10727 err = genl_register_family_with_ops(&nl80211_fam,
10728 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 10729 if (err)
10730 return err;
10731
55682965
JB		 10732 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10733 if (err)
10734 goto err_out;
10735
2a519311
JB		 10736 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10737 if (err)
10738 goto err_out;
10739
73d54c9e
LR		 10740 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10741 if (err)
10742 goto err_out;
10743
6039f6d2
JM		 10744 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10745 if (err)
10746 goto err_out;
10747
aff89a9b
JB		 10748#ifdef CONFIG_NL80211_TESTMODE
10749 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10750 if (err)
10751 goto err_out;
10752#endif
10753
026331c4
JM		 10754 err = netlink_register_notifier(&nl80211_netlink_notifier);
10755 if (err)
10756 goto err_out;
10757
55682965
JB		 10758 return 0;
10759 err_out:
10760 genl_unregister_family(&nl80211_fam);
10761 return err;
10762}
10763
10764void nl80211_exit(void)
10765{
026331c4 10766 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 10767 genl_unregister_family(&nl80211_fam);
10768}
Linux kernel - Deliverables
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