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cfg80211: change registered device pointer name
[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
f84f771d 33static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 34 struct genl_info *info);
f84f771d 35static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 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
2a94fe48
JB		 50/* multicast groups */
51enum nl80211_multicast_groups {
52 NL80211_MCGRP_CONFIG,
53 NL80211_MCGRP_SCAN,
54 NL80211_MCGRP_REGULATORY,
55 NL80211_MCGRP_MLME,
567ffc35 56 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 57 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
58};
59
60static const struct genl_multicast_group nl80211_mcgrps[] = {
61 [NL80211_MCGRP_CONFIG] = { .name = "config", },
62 [NL80211_MCGRP_SCAN] = { .name = "scan", },
63 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
64 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 65 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 66#ifdef CONFIG_NL80211_TESTMODE
67 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
68#endif
69};
70
89a54e48
JB		 71/* returns ERR_PTR values */
72static struct wireless_dev *
73__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 74{
89a54e48
JB		 75 struct cfg80211_registered_device *rdev;
76 struct wireless_dev *result = NULL;
77 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
78 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
79 u64 wdev_id;
80 int wiphy_idx = -1;
81 int ifidx = -1;
55682965 82
5fe231e8 83 ASSERT_RTNL();
55682965 84
89a54e48
JB		 85 if (!have_ifidx && !have_wdev_id)
86 return ERR_PTR(-EINVAL);
55682965 87
89a54e48
JB		 88 if (have_ifidx)
89 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
90 if (have_wdev_id) {
91 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
92 wiphy_idx = wdev_id >> 32;
55682965
JB		 93 }
94
89a54e48
JB		 95 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
96 struct wireless_dev *wdev;
97
98 if (wiphy_net(&rdev->wiphy) != netns)
99 continue;
100
101 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
102 continue;
103
89a54e48
JB		 104 list_for_each_entry(wdev, &rdev->wdev_list, list) {
105 if (have_ifidx && wdev->netdev &&
106 wdev->netdev->ifindex == ifidx) {
107 result = wdev;
108 break;
109 }
110 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
111 result = wdev;
112 break;
113 }
114 }
89a54e48
JB		 115
116 if (result)
117 break;
118 }
119
120 if (result)
121 return result;
122 return ERR_PTR(-ENODEV);
55682965
JB		 123}
124
a9455408 125static struct cfg80211_registered_device *
878d9ec7 126__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 127{
7fee4778
JB		 128 struct cfg80211_registered_device *rdev = NULL, *tmp;
129 struct net_device *netdev;
a9455408 130
5fe231e8 131 ASSERT_RTNL();
a9455408 132
878d9ec7 133 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 134 !attrs[NL80211_ATTR_IFINDEX] &&
135 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 136 return ERR_PTR(-EINVAL);
137
878d9ec7 138 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 139 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 140 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 141
89a54e48
JB		 142 if (attrs[NL80211_ATTR_WDEV]) {
143 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
144 struct wireless_dev *wdev;
145 bool found = false;
146
147 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
148 if (tmp) {
149 /* make sure wdev exists */
89a54e48
JB		 150 list_for_each_entry(wdev, &tmp->wdev_list, list) {
151 if (wdev->identifier != (u32)wdev_id)
152 continue;
153 found = true;
154 break;
155 }
89a54e48
JB		 156
157 if (!found)
158 tmp = NULL;
159
160 if (rdev && tmp != rdev)
161 return ERR_PTR(-EINVAL);
162 rdev = tmp;
163 }
164 }
165
878d9ec7
JB		 166 if (attrs[NL80211_ATTR_IFINDEX]) {
167 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 168 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 169 if (netdev) {
170 if (netdev->ieee80211_ptr)
171 tmp = wiphy_to_dev(
172 netdev->ieee80211_ptr->wiphy);
173 else
174 tmp = NULL;
175
7fee4778
JB		 176 /* not wireless device -- return error */
177 if (!tmp)
178 return ERR_PTR(-EINVAL);
179
180 /* mismatch -- return error */
181 if (rdev && tmp != rdev)
182 return ERR_PTR(-EINVAL);
183
184 rdev = tmp;
a9455408 185 }
a9455408 186 }
a9455408 187
4f7eff10
JB		 188 if (!rdev)
189 return ERR_PTR(-ENODEV);
a9455408 190
4f7eff10
JB		 191 if (netns != wiphy_net(&rdev->wiphy))
192 return ERR_PTR(-ENODEV);
193
194 return rdev;
a9455408
JB		 195}
196
197/*
198 * This function returns a pointer to the driver
199 * that the genl_info item that is passed refers to.
a9455408
JB		 200 *
201 * The result of this can be a PTR_ERR and hence must
202 * be checked with IS_ERR() for errors.
203 */
204static struct cfg80211_registered_device *
4f7eff10 205cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 206{
5fe231e8 207 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 208}
209
55682965 210/* policy for the attributes */
b54452b0 211static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 212 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
213 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 214 .len = 20-1 },
31888487 215 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 216
72bdcf34 217 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 218 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 219 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
220 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
222
b9a5f8ca
JM		 223 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
224 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
226 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 227 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 228
229 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
230 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
231 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 232
e007b857
EP		 233 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
234 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 235
b9454e83 236 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 237 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
238 .len = WLAN_MAX_KEY_LEN },
239 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
240 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
241 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 242 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 243 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 244
245 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
246 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
247 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
248 .len = IEEE80211_MAX_DATA_LEN },
249 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 251 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
252 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
253 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
255 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 256 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 257 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 258 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 259 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 260 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 261 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 262
b2e1b302
LR		 263 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
264 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
265
9f1ba906
JM		 266 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
267 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
268 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 269 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
270 .len = NL80211_MAX_SUPP_RATES },
50b12f59 271 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 272
24bdd9f4 273 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 274 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 275
6c739419 276 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 277
278 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
279 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
280 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 281 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
282 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 283
284 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_SSID_LEN },
286 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
287 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 288 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 289 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 290 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 291 [NL80211_ATTR_STA_FLAGS2] = {
292 .len = sizeof(struct nl80211_sta_flag_update),
293 },
3f77316c 294 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 295 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
296 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 297 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
298 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
299 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 300 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 301 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 302 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
303 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 304 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
305 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 306 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 307 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
308 .len = IEEE80211_MAX_DATA_LEN },
309 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 310 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 311 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 312 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 313 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 314 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
315 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 316 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 317 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 319 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 320 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 321 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 322 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 323 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 324 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 325 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 326 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 327 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 328 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
329 .len = IEEE80211_MAX_DATA_LEN },
330 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 332 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 333 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 334 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 335 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
336 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
337 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
339 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 340 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 341 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 343 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 344 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
346 .len = NL80211_HT_CAPABILITY_LEN
347 },
1d9d9213 348 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 349 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 350 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 351 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 352 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 353 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 354 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 355 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 356 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
357 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 358 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
359 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 360 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
361 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 362 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 363 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
364 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
365 .len = NL80211_VHT_CAPABILITY_LEN,
366 },
355199e0
JM		 367 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
368 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
369 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 370 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 371 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
372 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
373 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
374 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
375 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
c01fc9ad
SD		 376 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
377 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 378 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 379 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 380 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
381 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
382 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 383 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
384 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 385 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
386 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 387 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 388 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
55682965
JB		 389};
390
e31b8213 391/* policy for the key attributes */
b54452b0 392static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 393 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 394 [NL80211_KEY_IDX] = { .type = NLA_U8 },
395 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 396 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 397 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
398 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 399 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 400 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
401};
402
403/* policy for the key default flags */
404static const struct nla_policy
405nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
406 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
407 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 408};
409
ff1b6e69
JB		 410/* policy for WoWLAN attributes */
411static const struct nla_policy
412nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
413 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
414 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
415 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 417 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
418 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
420 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 421 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
422};
423
424static const struct nla_policy
425nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
426 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
427 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
428 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
429 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
430 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
431 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
432 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
433 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
434 },
435 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
436 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
437 },
438 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
439 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
440 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 441};
442
be29b99a
AK		 443/* policy for coalesce rule attributes */
444static const struct nla_policy
445nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
446 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
447 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
448 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
449};
450
e5497d76
JB		 451/* policy for GTK rekey offload attributes */
452static const struct nla_policy
453nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
454 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
455 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
456 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
457};
458
a1f1c21c
LC		 459static const struct nla_policy
460nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 461 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 462 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 463 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 464};
465
97990a06
JB		 466static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
467 struct netlink_callback *cb,
468 struct cfg80211_registered_device **rdev,
469 struct wireless_dev **wdev)
a043897a 470{
97990a06 471 int err;
a043897a 472
97990a06 473 rtnl_lock();
a043897a 474
97990a06
JB		 475 if (!cb->args[0]) {
476 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
477 nl80211_fam.attrbuf, nl80211_fam.maxattr,
478 nl80211_policy);
479 if (err)
480 goto out_unlock;
67748893 481
97990a06
JB		 482 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
483 nl80211_fam.attrbuf);
484 if (IS_ERR(*wdev)) {
485 err = PTR_ERR(*wdev);
486 goto out_unlock;
487 }
488 *rdev = wiphy_to_dev((*wdev)->wiphy);
c319d50b
JB		 489 /* 0 is the first index - add 1 to parse only once */
490 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 491 cb->args[1] = (*wdev)->identifier;
492 } else {
c319d50b
JB		 493 /* subtract the 1 again here */
494 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 495 struct wireless_dev *tmp;
67748893 496
97990a06
JB		 497 if (!wiphy) {
498 err = -ENODEV;
499 goto out_unlock;
500 }
501 *rdev = wiphy_to_dev(wiphy);
502 *wdev = NULL;
67748893 503
97990a06
JB		 504 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
505 if (tmp->identifier == cb->args[1]) {
506 *wdev = tmp;
507 break;
508 }
509 }
67748893 510
97990a06
JB		 511 if (!*wdev) {
512 err = -ENODEV;
513 goto out_unlock;
514 }
67748893
JB		 515 }
516
67748893 517 return 0;
97990a06 518 out_unlock:
67748893
JB		 519 rtnl_unlock();
520 return err;
521}
522
97990a06 523static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 524{
67748893
JB		 525 rtnl_unlock();
526}
527
f4a11bb0
JB		 528/* IE validation */
529static bool is_valid_ie_attr(const struct nlattr *attr)
530{
531 const u8 *pos;
532 int len;
533
534 if (!attr)
535 return true;
536
537 pos = nla_data(attr);
538 len = nla_len(attr);
539
540 while (len) {
541 u8 elemlen;
542
543 if (len < 2)
544 return false;
545 len -= 2;
546
547 elemlen = pos[1];
548 if (elemlen > len)
549 return false;
550
551 len -= elemlen;
552 pos += 2 + elemlen;
553 }
554
555 return true;
556}
557
55682965 558/* message building helper */
15e47304 559static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 560 int flags, u8 cmd)
561{
562 /* since there is no private header just add the generic one */
15e47304 563 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 564}
565
5dab3b8a 566static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 567 struct ieee80211_channel *chan,
568 bool large)
5dab3b8a 569{
9360ffd1
DM		 570 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
571 chan->center_freq))
572 goto nla_put_failure;
5dab3b8a 573
9360ffd1
DM		 574 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
575 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
576 goto nla_put_failure;
8fe02e16
LR		 577 if (chan->flags & IEEE80211_CHAN_NO_IR) {
578 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
579 goto nla_put_failure;
580 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
581 goto nla_put_failure;
582 }
cdc89b97
JB		 583 if (chan->flags & IEEE80211_CHAN_RADAR) {
584 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
585 goto nla_put_failure;
586 if (large) {
587 u32 time;
588
589 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
590
591 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
592 chan->dfs_state))
593 goto nla_put_failure;
594 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
595 time))
596 goto nla_put_failure;
089027e5
JD		 597 if (nla_put_u32(msg,
598 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
599 chan->dfs_cac_ms))
600 goto nla_put_failure;
cdc89b97
JB		 601 }
602 }
5dab3b8a 603
fe1abafd
JB		 604 if (large) {
605 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
606 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
607 goto nla_put_failure;
608 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
609 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
610 goto nla_put_failure;
611 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
612 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
613 goto nla_put_failure;
614 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
615 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
616 goto nla_put_failure;
570dbde1
DS		 617 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
618 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
619 goto nla_put_failure;
620 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
621 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
622 goto nla_put_failure;
fe1abafd
JB		 623 }
624
9360ffd1
DM		 625 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
626 DBM_TO_MBM(chan->max_power)))
627 goto nla_put_failure;
5dab3b8a
LR		 628
629 return 0;
630
631 nla_put_failure:
632 return -ENOBUFS;
633}
634
55682965
JB		 635/* netlink command implementations */
636
b9454e83
JB		 637struct key_parse {
638 struct key_params p;
639 int idx;
e31b8213 640 int type;
b9454e83 641 bool def, defmgmt;
dbd2fd65 642 bool def_uni, def_multi;
b9454e83
JB		 643};
644
645static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
646{
647 struct nlattr *tb[NL80211_KEY_MAX + 1];
648 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
649 nl80211_key_policy);
650 if (err)
651 return err;
652
653 k->def = !!tb[NL80211_KEY_DEFAULT];
654 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
655
dbd2fd65
JB		 656 if (k->def) {
657 k->def_uni = true;
658 k->def_multi = true;
659 }
660 if (k->defmgmt)
661 k->def_multi = true;
662
b9454e83
JB		 663 if (tb[NL80211_KEY_IDX])
664 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
665
666 if (tb[NL80211_KEY_DATA]) {
667 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
668 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
669 }
670
671 if (tb[NL80211_KEY_SEQ]) {
672 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
673 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
674 }
675
676 if (tb[NL80211_KEY_CIPHER])
677 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
678
e31b8213
JB		 679 if (tb[NL80211_KEY_TYPE]) {
680 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
681 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
682 return -EINVAL;
683 }
684
dbd2fd65
JB		 685 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
686 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 687 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
688 tb[NL80211_KEY_DEFAULT_TYPES],
689 nl80211_key_default_policy);
dbd2fd65
JB		 690 if (err)
691 return err;
692
693 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
694 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
695 }
696
b9454e83
JB		 697 return 0;
698}
699
700static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
701{
702 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
703 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
704 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
705 }
706
707 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
708 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
709 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
710 }
711
712 if (info->attrs[NL80211_ATTR_KEY_IDX])
713 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
714
715 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
716 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
717
718 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
719 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
720
dbd2fd65
JB		 721 if (k->def) {
722 k->def_uni = true;
723 k->def_multi = true;
724 }
725 if (k->defmgmt)
726 k->def_multi = true;
727
e31b8213
JB		 728 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
729 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
730 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
731 return -EINVAL;
732 }
733
dbd2fd65
JB		 734 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
735 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
736 int err = nla_parse_nested(
737 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
738 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
739 nl80211_key_default_policy);
740 if (err)
741 return err;
742
743 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
744 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
745 }
746
b9454e83
JB		 747 return 0;
748}
749
750static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
751{
752 int err;
753
754 memset(k, 0, sizeof(*k));
755 k->idx = -1;
e31b8213 756 k->type = -1;
b9454e83
JB		 757
758 if (info->attrs[NL80211_ATTR_KEY])
759 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
760 else
761 err = nl80211_parse_key_old(info, k);
762
763 if (err)
764 return err;
765
766 if (k->def && k->defmgmt)
767 return -EINVAL;
768
dbd2fd65
JB		 769 if (k->defmgmt) {
770 if (k->def_uni || !k->def_multi)
771 return -EINVAL;
772 }
773
b9454e83
JB		 774 if (k->idx != -1) {
775 if (k->defmgmt) {
776 if (k->idx < 4 || k->idx > 5)
777 return -EINVAL;
778 } else if (k->def) {
779 if (k->idx < 0 || k->idx > 3)
780 return -EINVAL;
781 } else {
782 if (k->idx < 0 || k->idx > 5)
783 return -EINVAL;
784 }
785 }
786
787 return 0;
788}
789
fffd0934
JB		 790static struct cfg80211_cached_keys *
791nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 792 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 793{
794 struct key_parse parse;
795 struct nlattr *key;
796 struct cfg80211_cached_keys *result;
797 int rem, err, def = 0;
798
799 result = kzalloc(sizeof(*result), GFP_KERNEL);
800 if (!result)
801 return ERR_PTR(-ENOMEM);
802
803 result->def = -1;
804 result->defmgmt = -1;
805
806 nla_for_each_nested(key, keys, rem) {
807 memset(&parse, 0, sizeof(parse));
808 parse.idx = -1;
809
810 err = nl80211_parse_key_new(key, &parse);
811 if (err)
812 goto error;
813 err = -EINVAL;
814 if (!parse.p.key)
815 goto error;
816 if (parse.idx < 0 || parse.idx > 4)
817 goto error;
818 if (parse.def) {
819 if (def)
820 goto error;
821 def = 1;
822 result->def = parse.idx;
dbd2fd65
JB		 823 if (!parse.def_uni || !parse.def_multi)
824 goto error;
fffd0934
JB		 825 } else if (parse.defmgmt)
826 goto error;
827 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 828 parse.idx, false, NULL);
fffd0934
JB		 829 if (err)
830 goto error;
831 result->params[parse.idx].cipher = parse.p.cipher;
832 result->params[parse.idx].key_len = parse.p.key_len;
833 result->params[parse.idx].key = result->data[parse.idx];
834 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 835
836 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
837 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
838 if (no_ht)
839 *no_ht = true;
840 }
fffd0934
JB		 841 }
842
843 return result;
844 error:
845 kfree(result);
846 return ERR_PTR(err);
847}
848
849static int nl80211_key_allowed(struct wireless_dev *wdev)
850{
851 ASSERT_WDEV_LOCK(wdev);
852
fffd0934
JB		 853 switch (wdev->iftype) {
854 case NL80211_IFTYPE_AP:
855 case NL80211_IFTYPE_AP_VLAN:
074ac8df 856 case NL80211_IFTYPE_P2P_GO:
ff973af7 857 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 858 break;
859 case NL80211_IFTYPE_ADHOC:
fffd0934 860 case NL80211_IFTYPE_STATION:
074ac8df 861 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 862 if (!wdev->current_bss)
fffd0934
JB		 863 return -ENOLINK;
864 break;
865 default:
866 return -EINVAL;
867 }
868
869 return 0;
870}
871
664834de
JM		 872static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
873 struct nlattr *tb)
874{
875 struct ieee80211_channel *chan;
876
877 if (tb == NULL)
878 return NULL;
879 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
880 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
881 return NULL;
882 return chan;
883}
884
7527a782
JB		 885static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
886{
887 struct nlattr *nl_modes = nla_nest_start(msg, attr);
888 int i;
889
890 if (!nl_modes)
891 goto nla_put_failure;
892
893 i = 0;
894 while (ifmodes) {
9360ffd1
DM		 895 if ((ifmodes & 1) && nla_put_flag(msg, i))
896 goto nla_put_failure;
7527a782
JB		 897 ifmodes >>= 1;
898 i++;
899 }
900
901 nla_nest_end(msg, nl_modes);
902 return 0;
903
904nla_put_failure:
905 return -ENOBUFS;
906}
907
908static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 909 struct sk_buff *msg,
910 bool large)
7527a782
JB		 911{
912 struct nlattr *nl_combis;
913 int i, j;
914
915 nl_combis = nla_nest_start(msg,
916 NL80211_ATTR_INTERFACE_COMBINATIONS);
917 if (!nl_combis)
918 goto nla_put_failure;
919
920 for (i = 0; i < wiphy->n_iface_combinations; i++) {
921 const struct ieee80211_iface_combination *c;
922 struct nlattr *nl_combi, *nl_limits;
923
924 c = &wiphy->iface_combinations[i];
925
926 nl_combi = nla_nest_start(msg, i + 1);
927 if (!nl_combi)
928 goto nla_put_failure;
929
930 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
931 if (!nl_limits)
932 goto nla_put_failure;
933
934 for (j = 0; j < c->n_limits; j++) {
935 struct nlattr *nl_limit;
936
937 nl_limit = nla_nest_start(msg, j + 1);
938 if (!nl_limit)
939 goto nla_put_failure;
9360ffd1
DM		 940 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
941 c->limits[j].max))
942 goto nla_put_failure;
7527a782
JB		 943 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
944 c->limits[j].types))
945 goto nla_put_failure;
946 nla_nest_end(msg, nl_limit);
947 }
948
949 nla_nest_end(msg, nl_limits);
950
9360ffd1
DM		 951 if (c->beacon_int_infra_match &&
952 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
953 goto nla_put_failure;
954 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
955 c->num_different_channels) ||
956 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
957 c->max_interfaces))
958 goto nla_put_failure;
cdc89b97
JB		 959 if (large &&
960 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
961 c->radar_detect_widths))
962 goto nla_put_failure;
7527a782
JB		 963
964 nla_nest_end(msg, nl_combi);
965 }
966
967 nla_nest_end(msg, nl_combis);
968
969 return 0;
970nla_put_failure:
971 return -ENOBUFS;
972}
973
3713b4e3 974#ifdef CONFIG_PM
b56cf720
JB		 975static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
976 struct sk_buff *msg)
977{
964dc9e2 978 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 979 struct nlattr *nl_tcp;
980
981 if (!tcp)
982 return 0;
983
984 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
985 if (!nl_tcp)
986 return -ENOBUFS;
987
988 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
989 tcp->data_payload_max))
990 return -ENOBUFS;
991
992 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
993 tcp->data_payload_max))
994 return -ENOBUFS;
995
996 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
997 return -ENOBUFS;
998
999 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1000 sizeof(*tcp->tok), tcp->tok))
1001 return -ENOBUFS;
1002
1003 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1004 tcp->data_interval_max))
1005 return -ENOBUFS;
1006
1007 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1008 tcp->wake_payload_max))
1009 return -ENOBUFS;
1010
1011 nla_nest_end(msg, nl_tcp);
1012 return 0;
1013}
1014
3713b4e3 1015static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1016 struct cfg80211_registered_device *rdev,
b56cf720 1017 bool large)
55682965 1018{
3713b4e3 1019 struct nlattr *nl_wowlan;
55682965 1020
1b8ec87a 1021 if (!rdev->wiphy.wowlan)
3713b4e3 1022 return 0;
55682965 1023
3713b4e3
JB		 1024 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1025 if (!nl_wowlan)
1026 return -ENOBUFS;
9360ffd1 1027
1b8ec87a 1028 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1029 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1030 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1031 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1032 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1033 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1034 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1035 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1036 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1037 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1038 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1039 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1040 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1041 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1042 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1043 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1044 return -ENOBUFS;
9360ffd1 1045
1b8ec87a 1046 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1047 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1048 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1049 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1050 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1051 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1052 };
9360ffd1 1053
3713b4e3
JB		 1054 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1055 sizeof(pat), &pat))
1056 return -ENOBUFS;
1057 }
9360ffd1 1058
1b8ec87a 1059 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1060 return -ENOBUFS;
1061
3713b4e3 1062 nla_nest_end(msg, nl_wowlan);
9360ffd1 1063
3713b4e3
JB		 1064 return 0;
1065}
1066#endif
9360ffd1 1067
be29b99a 1068static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1069 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1070{
1071 struct nl80211_coalesce_rule_support rule;
1072
1b8ec87a 1073 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1074 return 0;
1075
1b8ec87a
ZG		 1076 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1077 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1078 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1079 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1080 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1081 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1082
1083 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1084 return -ENOBUFS;
1085
1086 return 0;
1087}
1088
3713b4e3
JB		 1089static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1090 struct ieee80211_supported_band *sband)
1091{
1092 struct nlattr *nl_rates, *nl_rate;
1093 struct ieee80211_rate *rate;
1094 int i;
87bbbe22 1095
3713b4e3
JB		 1096 /* add HT info */
1097 if (sband->ht_cap.ht_supported &&
1098 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1099 sizeof(sband->ht_cap.mcs),
1100 &sband->ht_cap.mcs) ||
1101 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1102 sband->ht_cap.cap) ||
1103 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1104 sband->ht_cap.ampdu_factor) ||
1105 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1106 sband->ht_cap.ampdu_density)))
1107 return -ENOBUFS;
afe0cbf8 1108
3713b4e3
JB		 1109 /* add VHT info */
1110 if (sband->vht_cap.vht_supported &&
1111 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1112 sizeof(sband->vht_cap.vht_mcs),
1113 &sband->vht_cap.vht_mcs) ||
1114 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1115 sband->vht_cap.cap)))
1116 return -ENOBUFS;
f59ac048 1117
3713b4e3
JB		 1118 /* add bitrates */
1119 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1120 if (!nl_rates)
1121 return -ENOBUFS;
ee688b00 1122
3713b4e3
JB		 1123 for (i = 0; i < sband->n_bitrates; i++) {
1124 nl_rate = nla_nest_start(msg, i);
1125 if (!nl_rate)
1126 return -ENOBUFS;
ee688b00 1127
3713b4e3
JB		 1128 rate = &sband->bitrates[i];
1129 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1130 rate->bitrate))
1131 return -ENOBUFS;
1132 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1133 nla_put_flag(msg,
1134 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1135 return -ENOBUFS;
ee688b00 1136
3713b4e3
JB		 1137 nla_nest_end(msg, nl_rate);
1138 }
d51626df 1139
3713b4e3 1140 nla_nest_end(msg, nl_rates);
bf0c111e 1141
3713b4e3
JB		 1142 return 0;
1143}
ee688b00 1144
3713b4e3
JB		 1145static int
1146nl80211_send_mgmt_stypes(struct sk_buff *msg,
1147 const struct ieee80211_txrx_stypes *mgmt_stypes)
1148{
1149 u16 stypes;
1150 struct nlattr *nl_ftypes, *nl_ifs;
1151 enum nl80211_iftype ift;
1152 int i;
ee688b00 1153
3713b4e3
JB		 1154 if (!mgmt_stypes)
1155 return 0;
5dab3b8a 1156
3713b4e3
JB		 1157 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1158 if (!nl_ifs)
1159 return -ENOBUFS;
e2f367f2 1160
3713b4e3
JB		 1161 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1162 nl_ftypes = nla_nest_start(msg, ift);
1163 if (!nl_ftypes)
1164 return -ENOBUFS;
1165 i = 0;
1166 stypes = mgmt_stypes[ift].tx;
1167 while (stypes) {
1168 if ((stypes & 1) &&
1169 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1170 (i << 4) | IEEE80211_FTYPE_MGMT))
1171 return -ENOBUFS;
1172 stypes >>= 1;
1173 i++;
ee688b00 1174 }
3713b4e3
JB		 1175 nla_nest_end(msg, nl_ftypes);
1176 }
ee688b00 1177
3713b4e3 1178 nla_nest_end(msg, nl_ifs);
ee688b00 1179
3713b4e3
JB		 1180 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1181 if (!nl_ifs)
1182 return -ENOBUFS;
ee688b00 1183
3713b4e3
JB		 1184 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1185 nl_ftypes = nla_nest_start(msg, ift);
1186 if (!nl_ftypes)
1187 return -ENOBUFS;
1188 i = 0;
1189 stypes = mgmt_stypes[ift].rx;
1190 while (stypes) {
1191 if ((stypes & 1) &&
1192 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1193 (i << 4) | IEEE80211_FTYPE_MGMT))
1194 return -ENOBUFS;
1195 stypes >>= 1;
1196 i++;
1197 }
1198 nla_nest_end(msg, nl_ftypes);
1199 }
1200 nla_nest_end(msg, nl_ifs);
ee688b00 1201
3713b4e3
JB		 1202 return 0;
1203}
ee688b00 1204
86e8cf98
JB		 1205struct nl80211_dump_wiphy_state {
1206 s64 filter_wiphy;
1207 long start;
1208 long split_start, band_start, chan_start;
1209 bool split;
1210};
1211
1b8ec87a 1212static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3713b4e3 1213 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1214 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1215{
1216 void *hdr;
1217 struct nlattr *nl_bands, *nl_band;
1218 struct nlattr *nl_freqs, *nl_freq;
1219 struct nlattr *nl_cmds;
1220 enum ieee80211_band band;
1221 struct ieee80211_channel *chan;
1222 int i;
1223 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1224 rdev->wiphy.mgmt_stypes;
fe1abafd 1225 u32 features;
ee688b00 1226
3713b4e3
JB		 1227 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1228 if (!hdr)
1229 return -ENOBUFS;
ee688b00 1230
86e8cf98
JB		 1231 if (WARN_ON(!state))
1232 return -EINVAL;
ee688b00 1233
1b8ec87a 1234 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1235 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1236 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1237 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1238 cfg80211_rdev_list_generation))
8fdc621d
JB		 1239 goto nla_put_failure;
1240
86e8cf98 1241 switch (state->split_start) {
3713b4e3
JB		 1242 case 0:
1243 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1244 rdev->wiphy.retry_short) ||
3713b4e3 1245 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1246 rdev->wiphy.retry_long) ||
3713b4e3 1247 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1248 rdev->wiphy.frag_threshold) ||
3713b4e3 1249 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1250 rdev->wiphy.rts_threshold) ||
3713b4e3 1251 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1252 rdev->wiphy.coverage_class) ||
3713b4e3 1253 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1254 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1255 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1256 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1257 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1258 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1259 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1260 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1261 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1262 rdev->wiphy.max_match_sets))
9360ffd1 1263 goto nla_put_failure;
3713b4e3 1264
1b8ec87a 1265 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1266 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1267 goto nla_put_failure;
1b8ec87a 1268 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1269 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1270 goto nla_put_failure;
1b8ec87a 1271 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1272 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1273 goto nla_put_failure;
1b8ec87a 1274 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1275 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1276 goto nla_put_failure;
1b8ec87a 1277 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1278 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1279 goto nla_put_failure;
1b8ec87a 1280 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1281 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1282 goto nla_put_failure;
86e8cf98
JB		 1283 state->split_start++;
1284 if (state->split)
3713b4e3
JB		 1285 break;
1286 case 1:
1287 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1288 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1289 rdev->wiphy.cipher_suites))
3713b4e3 1290 goto nla_put_failure;
4745fc09 1291
3713b4e3 1292 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1293 rdev->wiphy.max_num_pmkids))
3713b4e3 1294 goto nla_put_failure;
b23aa676 1295
1b8ec87a 1296 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1297 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1298 goto nla_put_failure;
b23aa676 1299
3713b4e3 1300 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1301 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1302 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1303 rdev->wiphy.available_antennas_rx))
9360ffd1 1304 goto nla_put_failure;
b23aa676 1305
1b8ec87a 1306 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1307 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1308 rdev->wiphy.probe_resp_offload))
3713b4e3 1309 goto nla_put_failure;
8fdc621d 1310
1b8ec87a
ZG		 1311 if ((rdev->wiphy.available_antennas_tx ||
1312 rdev->wiphy.available_antennas_rx) &&
1313 rdev->ops->get_antenna) {
3713b4e3
JB		 1314 u32 tx_ant = 0, rx_ant = 0;
1315 int res;
1b8ec87a 1316 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1317 if (!res) {
1318 if (nla_put_u32(msg,
1319 NL80211_ATTR_WIPHY_ANTENNA_TX,
1320 tx_ant) ||
1321 nla_put_u32(msg,
1322 NL80211_ATTR_WIPHY_ANTENNA_RX,
1323 rx_ant))
1324 goto nla_put_failure;
1325 }
1326 }
a293911d 1327
86e8cf98
JB		 1328 state->split_start++;
1329 if (state->split)
3713b4e3
JB		 1330 break;
1331 case 2:
1332 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1333 rdev->wiphy.interface_modes))
3713b4e3 1334 goto nla_put_failure;
86e8cf98
JB		 1335 state->split_start++;
1336 if (state->split)
3713b4e3
JB		 1337 break;
1338 case 3:
1339 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1340 if (!nl_bands)
1341 goto nla_put_failure;
f7ca38df 1342
86e8cf98
JB		 1343 for (band = state->band_start;
1344 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1345 struct ieee80211_supported_band *sband;
2e161f78 1346
1b8ec87a 1347 sband = rdev->wiphy.bands[band];
2e161f78 1348
3713b4e3
JB		 1349 if (!sband)
1350 continue;
1351
1352 nl_band = nla_nest_start(msg, band);
1353 if (!nl_band)
2e161f78 1354 goto nla_put_failure;
3713b4e3 1355
86e8cf98 1356 switch (state->chan_start) {
3713b4e3
JB		 1357 case 0:
1358 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1359 goto nla_put_failure;
86e8cf98
JB		 1360 state->chan_start++;
1361 if (state->split)
3713b4e3
JB		 1362 break;
1363 default:
1364 /* add frequencies */
1365 nl_freqs = nla_nest_start(
1366 msg, NL80211_BAND_ATTR_FREQS);
1367 if (!nl_freqs)
1368 goto nla_put_failure;
1369
86e8cf98 1370 for (i = state->chan_start - 1;
3713b4e3
JB		 1371 i < sband->n_channels;
1372 i++) {
1373 nl_freq = nla_nest_start(msg, i);
1374 if (!nl_freq)
1375 goto nla_put_failure;
1376
1377 chan = &sband->channels[i];
1378
86e8cf98
JB		 1379 if (nl80211_msg_put_channel(
1380 msg, chan,
1381 state->split))
3713b4e3
JB		 1382 goto nla_put_failure;
1383
1384 nla_nest_end(msg, nl_freq);
86e8cf98 1385 if (state->split)
3713b4e3
JB		 1386 break;
1387 }
1388 if (i < sband->n_channels)
86e8cf98 1389 state->chan_start = i + 2;
3713b4e3 1390 else
86e8cf98 1391 state->chan_start = 0;
3713b4e3
JB		 1392 nla_nest_end(msg, nl_freqs);
1393 }
1394
1395 nla_nest_end(msg, nl_band);
1396
86e8cf98 1397 if (state->split) {
3713b4e3 1398 /* start again here */
86e8cf98 1399 if (state->chan_start)
3713b4e3
JB		 1400 band--;
1401 break;
2e161f78 1402 }
2e161f78 1403 }
3713b4e3 1404 nla_nest_end(msg, nl_bands);
2e161f78 1405
3713b4e3 1406 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1407 state->band_start = band + 1;
3713b4e3 1408 else
86e8cf98 1409 state->band_start = 0;
74b70a4e 1410
3713b4e3 1411 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1412 if (state->band_start == 0 && state->chan_start == 0)
1413 state->split_start++;
1414 if (state->split)
3713b4e3
JB		 1415 break;
1416 case 4:
1417 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1418 if (!nl_cmds)
2e161f78
JB		 1419 goto nla_put_failure;
1420
3713b4e3
JB		 1421 i = 0;
1422#define CMD(op, n) \
1423 do { \
1b8ec87a 1424 if (rdev->ops->op) { \
3713b4e3
JB		 1425 i++; \
1426 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1427 goto nla_put_failure; \
1428 } \
1429 } while (0)
1430
1431 CMD(add_virtual_intf, NEW_INTERFACE);
1432 CMD(change_virtual_intf, SET_INTERFACE);
1433 CMD(add_key, NEW_KEY);
1434 CMD(start_ap, START_AP);
1435 CMD(add_station, NEW_STATION);
1436 CMD(add_mpath, NEW_MPATH);
1437 CMD(update_mesh_config, SET_MESH_CONFIG);
1438 CMD(change_bss, SET_BSS);
1439 CMD(auth, AUTHENTICATE);
1440 CMD(assoc, ASSOCIATE);
1441 CMD(deauth, DEAUTHENTICATE);
1442 CMD(disassoc, DISASSOCIATE);
1443 CMD(join_ibss, JOIN_IBSS);
1444 CMD(join_mesh, JOIN_MESH);
1445 CMD(set_pmksa, SET_PMKSA);
1446 CMD(del_pmksa, DEL_PMKSA);
1447 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1448 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1449 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1450 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1451 CMD(mgmt_tx, FRAME);
1452 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1453 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1454 i++;
1455 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1456 goto nla_put_failure;
2e161f78 1457 }
1b8ec87a
ZG		 1458 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1459 rdev->ops->join_mesh) {
3713b4e3
JB		 1460 i++;
1461 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1462 goto nla_put_failure;
1463 }
1464 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1465 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1466 CMD(tdls_mgmt, TDLS_MGMT);
1467 CMD(tdls_oper, TDLS_OPER);
1468 }
1b8ec87a 1469 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1470 CMD(sched_scan_start, START_SCHED_SCAN);
1471 CMD(probe_client, PROBE_CLIENT);
1472 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1473 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1474 i++;
1475 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1476 goto nla_put_failure;
1477 }
1478 CMD(start_p2p_device, START_P2P_DEVICE);
1479 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1480 if (state->split) {
5de17984
AS		 1481 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1482 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1483 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1484 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1485 }
fa9ffc74 1486 CMD(set_qos_map, SET_QOS_MAP);
2e161f78 1487
3713b4e3
JB		 1488#ifdef CONFIG_NL80211_TESTMODE
1489 CMD(testmode_cmd, TESTMODE);
1490#endif
ff1b6e69 1491
3713b4e3 1492#undef CMD
ff1b6e69 1493
1b8ec87a 1494 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1495 i++;
1496 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1497 goto nla_put_failure;
ff1b6e69
JB		 1498 }
1499
1b8ec87a 1500 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1501 i++;
1502 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1503 goto nla_put_failure;
1504 }
1505
1506 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1507 state->split_start++;
1508 if (state->split)
3713b4e3
JB		 1509 break;
1510 case 5:
1b8ec87a
ZG		 1511 if (rdev->ops->remain_on_channel &&
1512 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1513 nla_put_u32(msg,
1514 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1515 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1516 goto nla_put_failure;
1517
1b8ec87a 1518 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1519 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1520 goto nla_put_failure;
1521
1522 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1523 goto nla_put_failure;
86e8cf98
JB		 1524 state->split_start++;
1525 if (state->split)
3713b4e3
JB		 1526 break;
1527 case 6:
1528#ifdef CONFIG_PM
1b8ec87a 1529 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1530 goto nla_put_failure;
86e8cf98
JB		 1531 state->split_start++;
1532 if (state->split)
3713b4e3
JB		 1533 break;
1534#else
86e8cf98 1535 state->split_start++;
dfb89c56 1536#endif
3713b4e3
JB		 1537 case 7:
1538 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1539 rdev->wiphy.software_iftypes))
3713b4e3 1540 goto nla_put_failure;
ff1b6e69 1541
1b8ec87a 1542 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1543 state->split))
3713b4e3 1544 goto nla_put_failure;
7527a782 1545
86e8cf98
JB		 1546 state->split_start++;
1547 if (state->split)
3713b4e3
JB		 1548 break;
1549 case 8:
1b8ec87a 1550 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1551 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1552 rdev->wiphy.ap_sme_capa))
3713b4e3 1553 goto nla_put_failure;
7527a782 1554
1b8ec87a 1555 features = rdev->wiphy.features;
fe1abafd
JB		 1556 /*
1557 * We can only add the per-channel limit information if the
1558 * dump is split, otherwise it makes it too big. Therefore
1559 * only advertise it in that case.
1560 */
86e8cf98 1561 if (state->split)
fe1abafd
JB		 1562 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1563 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1564 goto nla_put_failure;
562a7480 1565
1b8ec87a 1566 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1567 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1568 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1569 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1570 goto nla_put_failure;
1f074bd8 1571
1b8ec87a
ZG		 1572 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1573 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1574 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1575 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1576 goto nla_put_failure;
7e7c8926 1577
3713b4e3
JB		 1578 /*
1579 * Any information below this point is only available to
1580 * applications that can deal with it being split. This
1581 * helps ensure that newly added capabilities don't break
1582 * older tools by overrunning their buffers.
1583 *
1584 * We still increment split_start so that in the split
1585 * case we'll continue with more data in the next round,
1586 * but break unconditionally so unsplit data stops here.
1587 */
86e8cf98 1588 state->split_start++;
3713b4e3
JB		 1589 break;
1590 case 9:
1b8ec87a 1591 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1592 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1593 rdev->wiphy.extended_capabilities_len,
1594 rdev->wiphy.extended_capabilities) ||
fe1abafd 1595 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1596 rdev->wiphy.extended_capabilities_len,
1597 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1598 goto nla_put_failure;
a50df0c4 1599
1b8ec87a 1600 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1601 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1602 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1603 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1604 goto nla_put_failure;
1605
be29b99a
AK		 1606 state->split_start++;
1607 break;
1608 case 10:
1b8ec87a 1609 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1610 goto nla_put_failure;
1611
1b8ec87a 1612 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1613 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1614 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1615 goto nla_put_failure;
b43504cf 1616
1b8ec87a 1617 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1618 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1619 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1620 goto nla_put_failure;
1621
ad7e718c
JB		 1622 state->split_start++;
1623 break;
1624 case 11:
1b8ec87a 1625 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1626 const struct nl80211_vendor_cmd_info *info;
1627 struct nlattr *nested;
1628
1629 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1630 if (!nested)
1631 goto nla_put_failure;
1632
1b8ec87a
ZG		 1633 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1634 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1635 if (nla_put(msg, i + 1, sizeof(*info), info))
1636 goto nla_put_failure;
1637 }
1638 nla_nest_end(msg, nested);
1639 }
1640
1b8ec87a 1641 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1642 const struct nl80211_vendor_cmd_info *info;
1643 struct nlattr *nested;
ad7e718c 1644
567ffc35
JB		 1645 nested = nla_nest_start(msg,
1646 NL80211_ATTR_VENDOR_EVENTS);
1647 if (!nested)
ad7e718c 1648 goto nla_put_failure;
567ffc35 1649
1b8ec87a
ZG		 1650 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1651 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1652 if (nla_put(msg, i + 1, sizeof(*info), info))
1653 goto nla_put_failure;
1654 }
1655 nla_nest_end(msg, nested);
1656 }
01e0daa4 1657
3713b4e3 1658 /* done */
86e8cf98 1659 state->split_start = 0;
3713b4e3
JB		 1660 break;
1661 }
55682965
JB		 1662 return genlmsg_end(msg, hdr);
1663
1664 nla_put_failure:
bc3ed28c
TG		 1665 genlmsg_cancel(msg, hdr);
1666 return -EMSGSIZE;
55682965
JB		 1667}
1668
86e8cf98
JB		 1669static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1670 struct netlink_callback *cb,
1671 struct nl80211_dump_wiphy_state *state)
1672{
1673 struct nlattr **tb = nl80211_fam.attrbuf;
1674 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1675 tb, nl80211_fam.maxattr, nl80211_policy);
1676 /* ignore parse errors for backward compatibility */
1677 if (ret)
1678 return 0;
1679
1680 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1681 if (tb[NL80211_ATTR_WIPHY])
1682 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1683 if (tb[NL80211_ATTR_WDEV])
1684 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1685 if (tb[NL80211_ATTR_IFINDEX]) {
1686 struct net_device *netdev;
1687 struct cfg80211_registered_device *rdev;
1688 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1689
7f2b8562 1690 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1691 if (!netdev)
1692 return -ENODEV;
1693 if (netdev->ieee80211_ptr) {
1694 rdev = wiphy_to_dev(
1695 netdev->ieee80211_ptr->wiphy);
1696 state->filter_wiphy = rdev->wiphy_idx;
1697 }
86e8cf98
JB		 1698 }
1699
1700 return 0;
1701}
1702
55682965
JB		 1703static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1704{
645e77de 1705 int idx = 0, ret;
86e8cf98 1706 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1707 struct cfg80211_registered_device *rdev;
3a5a423b 1708
5fe231e8 1709 rtnl_lock();
86e8cf98
JB		 1710 if (!state) {
1711 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1712 if (!state) {
1713 rtnl_unlock();
86e8cf98 1714 return -ENOMEM;
3713b4e3 1715 }
86e8cf98
JB		 1716 state->filter_wiphy = -1;
1717 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1718 if (ret) {
1719 kfree(state);
1720 rtnl_unlock();
1721 return ret;
3713b4e3 1722 }
86e8cf98 1723 cb->args[0] = (long)state;
3713b4e3
JB		 1724 }
1725
1b8ec87a
ZG		 1726 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1727 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1728 continue;
86e8cf98 1729 if (++idx <= state->start)
55682965 1730 continue;
86e8cf98 1731 if (state->filter_wiphy != -1 &&
1b8ec87a 1732 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1733 continue;
1734 /* attempt to fit multiple wiphy data chunks into the skb */
1735 do {
1b8ec87a 1736 ret = nl80211_send_wiphy(rdev, skb,
3713b4e3
JB		 1737 NETLINK_CB(cb->skb).portid,
1738 cb->nlh->nlmsg_seq,
86e8cf98 1739 NLM_F_MULTI, state);
3713b4e3
JB		 1740 if (ret < 0) {
1741 /*
1742 * If sending the wiphy data didn't fit (ENOBUFS
1743 * or EMSGSIZE returned), this SKB is still
1744 * empty (so it's not too big because another
1745 * wiphy dataset is already in the skb) and
1746 * we've not tried to adjust the dump allocation
1747 * yet ... then adjust the alloc size to be
1748 * bigger, and return 1 but with the empty skb.
1749 * This results in an empty message being RX'ed
1750 * in userspace, but that is ignored.
1751 *
1752 * We can then retry with the larger buffer.
1753 */
1754 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1755 !skb->len && !state->split &&
3713b4e3
JB		 1756 cb->min_dump_alloc < 4096) {
1757 cb->min_dump_alloc = 4096;
f12cb289 1758 state->split_start = 0;
d98cae64 1759 rtnl_unlock();
3713b4e3
JB		 1760 return 1;
1761 }
1762 idx--;
1763 break;
645e77de 1764 }
86e8cf98 1765 } while (state->split_start > 0);
3713b4e3 1766 break;
55682965 1767 }
5fe231e8 1768 rtnl_unlock();
55682965 1769
86e8cf98 1770 state->start = idx;
55682965
JB		 1771
1772 return skb->len;
1773}
1774
86e8cf98
JB		 1775static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1776{
1777 kfree((void *)cb->args[0]);
1778 return 0;
1779}
1780
55682965
JB		 1781static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1782{
1783 struct sk_buff *msg;
1b8ec87a 1784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1785 struct nl80211_dump_wiphy_state state = {};
55682965 1786
645e77de 1787 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1788 if (!msg)
4c476991 1789 return -ENOMEM;
55682965 1790
1b8ec87a 1791 if (nl80211_send_wiphy(rdev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1792 &state) < 0) {
4c476991
JB		 1793 nlmsg_free(msg);
1794 return -ENOBUFS;
1795 }
55682965 1796
134e6375 1797 return genlmsg_reply(msg, info);
55682965
JB		 1798}
1799
31888487
JM		 1800static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1801 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1802 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1803 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1804 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1805 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1806};
1807
1808static int parse_txq_params(struct nlattr *tb[],
1809 struct ieee80211_txq_params *txq_params)
1810{
a3304b0a 1811 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1812 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1813 !tb[NL80211_TXQ_ATTR_AIFS])
1814 return -EINVAL;
1815
a3304b0a 1816 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1817 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1818 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1819 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1820 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1821
a3304b0a
JB		 1822 if (txq_params->ac >= NL80211_NUM_ACS)
1823 return -EINVAL;
1824
31888487
JM		 1825 return 0;
1826}
1827
f444de05
JB		 1828static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1829{
1830 /*
cc1d2806
JB		 1831 * You can only set the channel explicitly for WDS interfaces,
1832 * all others have their channel managed via their respective
1833 * "establish a connection" command (connect, join, ...)
1834 *
1835 * For AP/GO and mesh mode, the channel can be set with the
1836 * channel userspace API, but is only stored and passed to the
1837 * low-level driver when the AP starts or the mesh is joined.
1838 * This is for backward compatibility, userspace can also give
1839 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1840 *
1841 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1842 * whatever else is going on, so they have their own special
1843 * operation to set the monitor channel if possible.
f444de05
JB		 1844 */
1845 return !wdev ||
1846 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1847 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1848 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1849 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1850}
1851
683b6d3b
JB		 1852static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1853 struct genl_info *info,
1854 struct cfg80211_chan_def *chandef)
1855{
dbeca2ea 1856 u32 control_freq;
683b6d3b
JB		 1857
1858 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1859 return -EINVAL;
1860
1861 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1862
1863 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1864 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1865 chandef->center_freq1 = control_freq;
1866 chandef->center_freq2 = 0;
683b6d3b
JB		 1867
1868 /* Primary channel not allowed */
1869 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1870 return -EINVAL;
1871
3d9d1d66
JB		 1872 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1873 enum nl80211_channel_type chantype;
1874
1875 chantype = nla_get_u32(
1876 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1877
1878 switch (chantype) {
1879 case NL80211_CHAN_NO_HT:
1880 case NL80211_CHAN_HT20:
1881 case NL80211_CHAN_HT40PLUS:
1882 case NL80211_CHAN_HT40MINUS:
1883 cfg80211_chandef_create(chandef, chandef->chan,
1884 chantype);
1885 break;
1886 default:
1887 return -EINVAL;
1888 }
1889 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1890 chandef->width =
1891 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1892 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1893 chandef->center_freq1 =
1894 nla_get_u32(
1895 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1896 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1897 chandef->center_freq2 =
1898 nla_get_u32(
1899 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1900 }
1901
9f5e8f6e 1902 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1903 return -EINVAL;
1904
9f5e8f6e
JB		 1905 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1906 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1907 return -EINVAL;
1908
2f301ab2
SW		 1909 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1910 chandef->width == NL80211_CHAN_WIDTH_10) &&
1911 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1912 return -EINVAL;
1913
683b6d3b
JB		 1914 return 0;
1915}
1916
f444de05
JB		 1917static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1918 struct wireless_dev *wdev,
1919 struct genl_info *info)
1920{
683b6d3b 1921 struct cfg80211_chan_def chandef;
f444de05 1922 int result;
e8c9bd5b
JB		 1923 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1924
1925 if (wdev)
1926 iftype = wdev->iftype;
f444de05 1927
f444de05
JB		 1928 if (!nl80211_can_set_dev_channel(wdev))
1929 return -EOPNOTSUPP;
1930
683b6d3b
JB		 1931 result = nl80211_parse_chandef(rdev, info, &chandef);
1932 if (result)
1933 return result;
f444de05 1934
e8c9bd5b 1935 switch (iftype) {
aa430da4
JB		 1936 case NL80211_IFTYPE_AP:
1937 case NL80211_IFTYPE_P2P_GO:
1938 if (wdev->beacon_interval) {
1939 result = -EBUSY;
1940 break;
1941 }
174e0cd2 1942 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1943 result = -EINVAL;
1944 break;
1945 }
683b6d3b 1946 wdev->preset_chandef = chandef;
aa430da4
JB		 1947 result = 0;
1948 break;
cc1d2806 1949 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1950 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1951 break;
e8c9bd5b 1952 case NL80211_IFTYPE_MONITOR:
683b6d3b 1953 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1954 break;
aa430da4 1955 default:
e8c9bd5b 1956 result = -EINVAL;
f444de05 1957 }
f444de05
JB		 1958
1959 return result;
1960}
1961
1962static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1963{
4c476991
JB		 1964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1965 struct net_device *netdev = info->user_ptr[1];
f444de05 1966
4c476991 1967 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1968}
1969
e8347eba
BJ		 1970static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1971{
43b19952
JB		 1972 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1973 struct net_device *dev = info->user_ptr[1];
1974 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1975 const u8 *bssid;
e8347eba
BJ		 1976
1977 if (!info->attrs[NL80211_ATTR_MAC])
1978 return -EINVAL;
1979
43b19952
JB		 1980 if (netif_running(dev))
1981 return -EBUSY;
e8347eba 1982
43b19952
JB		 1983 if (!rdev->ops->set_wds_peer)
1984 return -EOPNOTSUPP;
e8347eba 1985
43b19952
JB		 1986 if (wdev->iftype != NL80211_IFTYPE_WDS)
1987 return -EOPNOTSUPP;
e8347eba
BJ		 1988
1989 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1990 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1991}
1992
1993
55682965
JB		 1994static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1995{
1996 struct cfg80211_registered_device *rdev;
f444de05
JB		 1997 struct net_device *netdev = NULL;
1998 struct wireless_dev *wdev;
a1e567c8 1999 int result = 0, rem_txq_params = 0;
31888487 2000 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2001 u32 changed;
2002 u8 retry_short = 0, retry_long = 0;
2003 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2004 u8 coverage_class = 0;
55682965 2005
5fe231e8
JB		 2006 ASSERT_RTNL();
2007
f444de05
JB		 2008 /*
2009 * Try to find the wiphy and netdev. Normally this
2010 * function shouldn't need the netdev, but this is
2011 * done for backward compatibility -- previously
2012 * setting the channel was done per wiphy, but now
2013 * it is per netdev. Previous userland like hostapd
2014 * also passed a netdev to set_wiphy, so that it is
2015 * possible to let that go to the right netdev!
2016 */
4bbf4d56 2017
f444de05
JB		 2018 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2019 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2020
7f2b8562 2021 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2022 if (netdev && netdev->ieee80211_ptr)
f444de05 2023 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2024 else
f444de05 2025 netdev = NULL;
4bbf4d56
JB		 2026 }
2027
f444de05 2028 if (!netdev) {
878d9ec7
JB		 2029 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2030 info->attrs);
5fe231e8 2031 if (IS_ERR(rdev))
4c476991 2032 return PTR_ERR(rdev);
f444de05
JB		 2033 wdev = NULL;
2034 netdev = NULL;
2035 result = 0;
71fe96bf 2036 } else
f444de05 2037 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2038
2039 /*
2040 * end workaround code, by now the rdev is available
2041 * and locked, and wdev may or may not be NULL.
2042 */
4bbf4d56
JB		 2043
2044 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2045 result = cfg80211_dev_rename(
2046 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2047
4bbf4d56 2048 if (result)
7f2b8562 2049 return result;
31888487
JM		 2050
2051 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2052 struct ieee80211_txq_params txq_params;
2053 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2054
7f2b8562
YX		 2055 if (!rdev->ops->set_txq_params)
2056 return -EOPNOTSUPP;
31888487 2057
7f2b8562
YX		 2058 if (!netdev)
2059 return -EINVAL;
f70f01c2 2060
133a3ff2 2061 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2062 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2063 return -EINVAL;
133a3ff2 2064
7f2b8562
YX		 2065 if (!netif_running(netdev))
2066 return -ENETDOWN;
2b5f8b0b 2067
31888487
JM		 2068 nla_for_each_nested(nl_txq_params,
2069 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2070 rem_txq_params) {
ae811e21
JB		 2071 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2072 nla_data(nl_txq_params),
2073 nla_len(nl_txq_params),
2074 txq_params_policy);
2075 if (result)
2076 return result;
31888487
JM		 2077 result = parse_txq_params(tb, &txq_params);
2078 if (result)
7f2b8562 2079 return result;
31888487 2080
e35e4d28
HG		 2081 result = rdev_set_txq_params(rdev, netdev,
2082 &txq_params);
31888487 2083 if (result)
7f2b8562 2084 return result;
31888487
JM		 2085 }
2086 }
55682965 2087
72bdcf34 2088 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 2089 result = __nl80211_set_channel(rdev,
2090 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
2091 info);
72bdcf34 2092 if (result)
7f2b8562 2093 return result;
72bdcf34
JM		 2094 }
2095
98d2ff8b 2096 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2097 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2098 enum nl80211_tx_power_setting type;
2099 int idx, mbm = 0;
2100
c8442118
JB		 2101 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2102 txp_wdev = NULL;
2103
7f2b8562
YX		 2104 if (!rdev->ops->set_tx_power)
2105 return -EOPNOTSUPP;
98d2ff8b
JO		 2106
2107 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2108 type = nla_get_u32(info->attrs[idx]);
2109
2110 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2111 (type != NL80211_TX_POWER_AUTOMATIC))
2112 return -EINVAL;
98d2ff8b
JO		 2113
2114 if (type != NL80211_TX_POWER_AUTOMATIC) {
2115 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2116 mbm = nla_get_u32(info->attrs[idx]);
2117 }
2118
c8442118 2119 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2120 if (result)
7f2b8562 2121 return result;
98d2ff8b
JO		 2122 }
2123
afe0cbf8
BR		 2124 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2125 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2126 u32 tx_ant, rx_ant;
7f531e03
BR		 2127 if ((!rdev->wiphy.available_antennas_tx &&
2128 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2129 !rdev->ops->set_antenna)
2130 return -EOPNOTSUPP;
afe0cbf8
BR		 2131
2132 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2133 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2134
a7ffac95 2135 /* reject antenna configurations which don't match the
7f531e03
BR		 2136 * available antenna masks, except for the "all" mask */
2137 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2138 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2139 return -EINVAL;
a7ffac95 2140
7f531e03
BR		 2141 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2142 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2143
e35e4d28 2144 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2145 if (result)
7f2b8562 2146 return result;
afe0cbf8
BR		 2147 }
2148
b9a5f8ca
JM		 2149 changed = 0;
2150
2151 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2152 retry_short = nla_get_u8(
2153 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2154 if (retry_short == 0)
2155 return -EINVAL;
2156
b9a5f8ca
JM		 2157 changed |= WIPHY_PARAM_RETRY_SHORT;
2158 }
2159
2160 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2161 retry_long = nla_get_u8(
2162 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2163 if (retry_long == 0)
2164 return -EINVAL;
2165
b9a5f8ca
JM		 2166 changed |= WIPHY_PARAM_RETRY_LONG;
2167 }
2168
2169 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2170 frag_threshold = nla_get_u32(
2171 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2172 if (frag_threshold < 256)
2173 return -EINVAL;
2174
b9a5f8ca
JM		 2175 if (frag_threshold != (u32) -1) {
2176 /*
2177 * Fragments (apart from the last one) are required to
2178 * have even length. Make the fragmentation code
2179 * simpler by stripping LSB should someone try to use
2180 * odd threshold value.
2181 */
2182 frag_threshold &= ~0x1;
2183 }
2184 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2185 }
2186
2187 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2188 rts_threshold = nla_get_u32(
2189 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2190 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2191 }
2192
81077e82
LT		 2193 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2194 coverage_class = nla_get_u8(
2195 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2196 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2197 }
2198
b9a5f8ca
JM		 2199 if (changed) {
2200 u8 old_retry_short, old_retry_long;
2201 u32 old_frag_threshold, old_rts_threshold;
81077e82 2202 u8 old_coverage_class;
b9a5f8ca 2203
7f2b8562
YX		 2204 if (!rdev->ops->set_wiphy_params)
2205 return -EOPNOTSUPP;
b9a5f8ca
JM		 2206
2207 old_retry_short = rdev->wiphy.retry_short;
2208 old_retry_long = rdev->wiphy.retry_long;
2209 old_frag_threshold = rdev->wiphy.frag_threshold;
2210 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2211 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2212
2213 if (changed & WIPHY_PARAM_RETRY_SHORT)
2214 rdev->wiphy.retry_short = retry_short;
2215 if (changed & WIPHY_PARAM_RETRY_LONG)
2216 rdev->wiphy.retry_long = retry_long;
2217 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2218 rdev->wiphy.frag_threshold = frag_threshold;
2219 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2220 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2221 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2222 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2223
e35e4d28 2224 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2225 if (result) {
2226 rdev->wiphy.retry_short = old_retry_short;
2227 rdev->wiphy.retry_long = old_retry_long;
2228 rdev->wiphy.frag_threshold = old_frag_threshold;
2229 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2230 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2231 }
2232 }
7f2b8562 2233 return 0;
55682965
JB		 2234}
2235
71bbc994
JB		 2236static inline u64 wdev_id(struct wireless_dev *wdev)
2237{
2238 return (u64)wdev->identifier |
2239 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2240}
55682965 2241
683b6d3b 2242static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2243 const struct cfg80211_chan_def *chandef)
683b6d3b 2244{
9f5e8f6e 2245 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2246
683b6d3b
JB		 2247 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2248 chandef->chan->center_freq))
2249 return -ENOBUFS;
3d9d1d66
JB		 2250 switch (chandef->width) {
2251 case NL80211_CHAN_WIDTH_20_NOHT:
2252 case NL80211_CHAN_WIDTH_20:
2253 case NL80211_CHAN_WIDTH_40:
2254 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2255 cfg80211_get_chandef_type(chandef)))
2256 return -ENOBUFS;
2257 break;
2258 default:
2259 break;
2260 }
2261 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2262 return -ENOBUFS;
2263 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2264 return -ENOBUFS;
2265 if (chandef->center_freq2 &&
2266 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2267 return -ENOBUFS;
2268 return 0;
2269}
2270
15e47304 2271static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2272 struct cfg80211_registered_device *rdev,
72fb2abc 2273 struct wireless_dev *wdev)
55682965 2274{
72fb2abc 2275 struct net_device *dev = wdev->netdev;
55682965
JB		 2276 void *hdr;
2277
15e47304 2278 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2279 if (!hdr)
2280 return -1;
2281
72fb2abc
JB		 2282 if (dev &&
2283 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2284 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2285 goto nla_put_failure;
2286
2287 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2288 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2289 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2290 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2291 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2292 rdev->devlist_generation ^
2293 (cfg80211_rdev_list_generation << 2)))
2294 goto nla_put_failure;
f5ea9120 2295
5b7ccaf3 2296 if (rdev->ops->get_channel) {
683b6d3b
JB		 2297 int ret;
2298 struct cfg80211_chan_def chandef;
2299
2300 ret = rdev_get_channel(rdev, wdev, &chandef);
2301 if (ret == 0) {
2302 if (nl80211_send_chandef(msg, &chandef))
2303 goto nla_put_failure;
2304 }
d91df0e3
PF		 2305 }
2306
b84e7a05
AQ		 2307 if (wdev->ssid_len) {
2308 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2309 goto nla_put_failure;
2310 }
2311
55682965
JB		 2312 return genlmsg_end(msg, hdr);
2313
2314 nla_put_failure:
bc3ed28c
TG		 2315 genlmsg_cancel(msg, hdr);
2316 return -EMSGSIZE;
55682965
JB		 2317}
2318
2319static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2320{
2321 int wp_idx = 0;
2322 int if_idx = 0;
2323 int wp_start = cb->args[0];
2324 int if_start = cb->args[1];
f5ea9120 2325 struct cfg80211_registered_device *rdev;
55682965
JB		 2326 struct wireless_dev *wdev;
2327
5fe231e8 2328 rtnl_lock();
f5ea9120
JB		 2329 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2330 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2331 continue;
bba95fef
JB		 2332 if (wp_idx < wp_start) {
2333 wp_idx++;
55682965 2334 continue;
bba95fef 2335 }
55682965
JB		 2336 if_idx = 0;
2337
89a54e48 2338 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2339 if (if_idx < if_start) {
2340 if_idx++;
55682965 2341 continue;
bba95fef 2342 }
15e47304 2343 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2344 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2345 rdev, wdev) < 0) {
bba95fef
JB		 2346 goto out;
2347 }
2348 if_idx++;
55682965 2349 }
bba95fef
JB		 2350
2351 wp_idx++;
55682965 2352 }
bba95fef 2353 out:
5fe231e8 2354 rtnl_unlock();
55682965
JB		 2355
2356 cb->args[0] = wp_idx;
2357 cb->args[1] = if_idx;
2358
2359 return skb->len;
2360}
2361
2362static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2363{
2364 struct sk_buff *msg;
1b8ec87a 2365 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2366 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2367
fd2120ca 2368 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2369 if (!msg)
4c476991 2370 return -ENOMEM;
55682965 2371
15e47304 2372 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2373 rdev, wdev) < 0) {
4c476991
JB		 2374 nlmsg_free(msg);
2375 return -ENOBUFS;
2376 }
55682965 2377
134e6375 2378 return genlmsg_reply(msg, info);
55682965
JB		 2379}
2380
66f7ac50
MW		 2381static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2382 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2383 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2384 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2385 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2386 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2387 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2388};
2389
2390static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2391{
2392 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2393 int flag;
2394
2395 *mntrflags = 0;
2396
2397 if (!nla)
2398 return -EINVAL;
2399
2400 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2401 nla, mntr_flags_policy))
2402 return -EINVAL;
2403
2404 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2405 if (flags[flag])
2406 *mntrflags |= (1<<flag);
2407
2408 return 0;
2409}
2410
9bc383de 2411static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2412 struct net_device *netdev, u8 use_4addr,
2413 enum nl80211_iftype iftype)
9bc383de 2414{
ad4bb6f8 2415 if (!use_4addr) {
f350a0a8 2416 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2417 return -EBUSY;
9bc383de 2418 return 0;
ad4bb6f8 2419 }
9bc383de
JB		 2420
2421 switch (iftype) {
2422 case NL80211_IFTYPE_AP_VLAN:
2423 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2424 return 0;
2425 break;
2426 case NL80211_IFTYPE_STATION:
2427 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2428 return 0;
2429 break;
2430 default:
2431 break;
2432 }
2433
2434 return -EOPNOTSUPP;
2435}
2436
55682965
JB		 2437static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2438{
4c476991 2439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2440 struct vif_params params;
e36d56b6 2441 int err;
04a773ad 2442 enum nl80211_iftype otype, ntype;
4c476991 2443 struct net_device *dev = info->user_ptr[1];
92ffe055 2444 u32 _flags, *flags = NULL;
ac7f9cfa 2445 bool change = false;
55682965 2446
2ec600d6
LCC		 2447 memset(&params, 0, sizeof(params));
2448
04a773ad 2449 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2450
723b038d 2451 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2452 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2453 if (otype != ntype)
ac7f9cfa 2454 change = true;
4c476991
JB		 2455 if (ntype > NL80211_IFTYPE_MAX)
2456 return -EINVAL;
723b038d
JB		 2457 }
2458
92ffe055 2459 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2460 struct wireless_dev *wdev = dev->ieee80211_ptr;
2461
4c476991
JB		 2462 if (ntype != NL80211_IFTYPE_MESH_POINT)
2463 return -EINVAL;
29cbe68c
JB		 2464 if (netif_running(dev))
2465 return -EBUSY;
2466
2467 wdev_lock(wdev);
2468 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2469 IEEE80211_MAX_MESH_ID_LEN);
2470 wdev->mesh_id_up_len =
2471 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2472 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2473 wdev->mesh_id_up_len);
2474 wdev_unlock(wdev);
2ec600d6
LCC		 2475 }
2476
8b787643
FF		 2477 if (info->attrs[NL80211_ATTR_4ADDR]) {
2478 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2479 change = true;
ad4bb6f8 2480 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2481 if (err)
4c476991 2482 return err;
8b787643
FF		 2483 } else {
2484 params.use_4addr = -1;
2485 }
2486
92ffe055 2487 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2488 if (ntype != NL80211_IFTYPE_MONITOR)
2489 return -EINVAL;
92ffe055
JB		 2490 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2491 &_flags);
ac7f9cfa 2492 if (err)
4c476991 2493 return err;
ac7f9cfa
JB		 2494
2495 flags = &_flags;
2496 change = true;
92ffe055 2497 }
3b85875a 2498
18003297 2499 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2500 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2501 return -EOPNOTSUPP;
2502
ac7f9cfa 2503 if (change)
3d54d255 2504 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2505 else
2506 err = 0;
60719ffd 2507
9bc383de
JB		 2508 if (!err && params.use_4addr != -1)
2509 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2510
55682965
JB		 2511 return err;
2512}
2513
2514static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2515{
4c476991 2516 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2517 struct vif_params params;
84efbb84 2518 struct wireless_dev *wdev;
1c90f9d4 2519 struct sk_buff *msg;
55682965
JB		 2520 int err;
2521 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2522 u32 flags;
55682965 2523
78f22b6a
JB		 2524 /* to avoid failing a new interface creation due to pending removal */
2525 cfg80211_destroy_ifaces(rdev);
2526
2ec600d6
LCC		 2527 memset(&params, 0, sizeof(params));
2528
55682965
JB		 2529 if (!info->attrs[NL80211_ATTR_IFNAME])
2530 return -EINVAL;
2531
2532 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2533 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2534 if (type > NL80211_IFTYPE_MAX)
2535 return -EINVAL;
2536 }
2537
79c97e97 2538 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2539 !(rdev->wiphy.interface_modes & (1 << type)))
2540 return -EOPNOTSUPP;
55682965 2541
1c18f145
AS		 2542 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2543 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2544 ETH_ALEN);
2545 if (!is_valid_ether_addr(params.macaddr))
2546 return -EADDRNOTAVAIL;
2547 }
2548
9bc383de 2549 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2550 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2551 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2552 if (err)
4c476991 2553 return err;
9bc383de 2554 }
8b787643 2555
1c90f9d4
JB		 2556 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2557 if (!msg)
2558 return -ENOMEM;
2559
66f7ac50
MW		 2560 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2561 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2562 &flags);
e057d3c3 2563
18003297 2564 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2565 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2566 return -EOPNOTSUPP;
2567
e35e4d28
HG		 2568 wdev = rdev_add_virtual_intf(rdev,
2569 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2570 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2571 if (IS_ERR(wdev)) {
2572 nlmsg_free(msg);
84efbb84 2573 return PTR_ERR(wdev);
1c90f9d4 2574 }
2ec600d6 2575
78f22b6a
JB		 2576 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2577 wdev->owner_nlportid = info->snd_portid;
2578
98104fde
JB		 2579 switch (type) {
2580 case NL80211_IFTYPE_MESH_POINT:
2581 if (!info->attrs[NL80211_ATTR_MESH_ID])
2582 break;
29cbe68c
JB		 2583 wdev_lock(wdev);
2584 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2585 IEEE80211_MAX_MESH_ID_LEN);
2586 wdev->mesh_id_up_len =
2587 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2588 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2589 wdev->mesh_id_up_len);
2590 wdev_unlock(wdev);
98104fde
JB		 2591 break;
2592 case NL80211_IFTYPE_P2P_DEVICE:
2593 /*
2594 * P2P Device doesn't have a netdev, so doesn't go
2595 * through the netdev notifier and must be added here
2596 */
2597 mutex_init(&wdev->mtx);
2598 INIT_LIST_HEAD(&wdev->event_list);
2599 spin_lock_init(&wdev->event_lock);
2600 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2601 spin_lock_init(&wdev->mgmt_registrations_lock);
2602
98104fde
JB		 2603 wdev->identifier = ++rdev->wdev_id;
2604 list_add_rcu(&wdev->list, &rdev->wdev_list);
2605 rdev->devlist_generation++;
98104fde
JB		 2606 break;
2607 default:
2608 break;
29cbe68c
JB		 2609 }
2610
15e47304 2611 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2612 rdev, wdev) < 0) {
2613 nlmsg_free(msg);
2614 return -ENOBUFS;
2615 }
2616
2617 return genlmsg_reply(msg, info);
55682965
JB		 2618}
2619
2620static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2621{
4c476991 2622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2623 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2624
4c476991
JB		 2625 if (!rdev->ops->del_virtual_intf)
2626 return -EOPNOTSUPP;
55682965 2627
84efbb84
JB		 2628 /*
2629 * If we remove a wireless device without a netdev then clear
2630 * user_ptr[1] so that nl80211_post_doit won't dereference it
2631 * to check if it needs to do dev_put(). Otherwise it crashes
2632 * since the wdev has been freed, unlike with a netdev where
2633 * we need the dev_put() for the netdev to really be freed.
2634 */
2635 if (!wdev->netdev)
2636 info->user_ptr[1] = NULL;
2637
e35e4d28 2638 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2639}
2640
1d9d9213
SW		 2641static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2642{
2643 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2644 struct net_device *dev = info->user_ptr[1];
2645 u16 noack_map;
2646
2647 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2648 return -EINVAL;
2649
2650 if (!rdev->ops->set_noack_map)
2651 return -EOPNOTSUPP;
2652
2653 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2654
e35e4d28 2655 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2656}
2657
41ade00f
JB		 2658struct get_key_cookie {
2659 struct sk_buff *msg;
2660 int error;
b9454e83 2661 int idx;
41ade00f
JB		 2662};
2663
2664static void get_key_callback(void *c, struct key_params *params)
2665{
b9454e83 2666 struct nlattr *key;
41ade00f
JB		 2667 struct get_key_cookie *cookie = c;
2668
9360ffd1
DM		 2669 if ((params->key &&
2670 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2671 params->key_len, params->key)) ||
2672 (params->seq &&
2673 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2674 params->seq_len, params->seq)) ||
2675 (params->cipher &&
2676 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2677 params->cipher)))
2678 goto nla_put_failure;
41ade00f 2679
b9454e83
JB		 2680 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2681 if (!key)
2682 goto nla_put_failure;
2683
9360ffd1
DM		 2684 if ((params->key &&
2685 nla_put(cookie->msg, NL80211_KEY_DATA,
2686 params->key_len, params->key)) ||
2687 (params->seq &&
2688 nla_put(cookie->msg, NL80211_KEY_SEQ,
2689 params->seq_len, params->seq)) ||
2690 (params->cipher &&
2691 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2692 params->cipher)))
2693 goto nla_put_failure;
b9454e83 2694
9360ffd1
DM		 2695 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2696 goto nla_put_failure;
b9454e83
JB		 2697
2698 nla_nest_end(cookie->msg, key);
2699
41ade00f
JB		 2700 return;
2701 nla_put_failure:
2702 cookie->error = 1;
2703}
2704
2705static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2706{
4c476991 2707 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2708 int err;
4c476991 2709 struct net_device *dev = info->user_ptr[1];
41ade00f 2710 u8 key_idx = 0;
e31b8213
JB		 2711 const u8 *mac_addr = NULL;
2712 bool pairwise;
41ade00f
JB		 2713 struct get_key_cookie cookie = {
2714 .error = 0,
2715 };
2716 void *hdr;
2717 struct sk_buff *msg;
2718
2719 if (info->attrs[NL80211_ATTR_KEY_IDX])
2720 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2721
3cfcf6ac 2722 if (key_idx > 5)
41ade00f
JB		 2723 return -EINVAL;
2724
2725 if (info->attrs[NL80211_ATTR_MAC])
2726 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2727
e31b8213
JB		 2728 pairwise = !!mac_addr;
2729 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2730 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2731 if (kt >= NUM_NL80211_KEYTYPES)
2732 return -EINVAL;
2733 if (kt != NL80211_KEYTYPE_GROUP &&
2734 kt != NL80211_KEYTYPE_PAIRWISE)
2735 return -EINVAL;
2736 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2737 }
2738
4c476991
JB		 2739 if (!rdev->ops->get_key)
2740 return -EOPNOTSUPP;
41ade00f 2741
fd2120ca 2742 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2743 if (!msg)
2744 return -ENOMEM;
41ade00f 2745
15e47304 2746 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2747 NL80211_CMD_NEW_KEY);
cb35fba3 2748 if (!hdr)
9fe271af 2749 goto nla_put_failure;
41ade00f
JB		 2750
2751 cookie.msg = msg;
b9454e83 2752 cookie.idx = key_idx;
41ade00f 2753
9360ffd1
DM		 2754 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2755 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2756 goto nla_put_failure;
2757 if (mac_addr &&
2758 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2759 goto nla_put_failure;
41ade00f 2760
e31b8213
JB		 2761 if (pairwise && mac_addr &&
2762 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2763 return -ENOENT;
2764
e35e4d28
HG		 2765 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2766 get_key_callback);
41ade00f
JB		 2767
2768 if (err)
6c95e2a2 2769 goto free_msg;
41ade00f
JB		 2770
2771 if (cookie.error)
2772 goto nla_put_failure;
2773
2774 genlmsg_end(msg, hdr);
4c476991 2775 return genlmsg_reply(msg, info);
41ade00f
JB		 2776
2777 nla_put_failure:
2778 err = -ENOBUFS;
6c95e2a2 2779 free_msg:
41ade00f 2780 nlmsg_free(msg);
41ade00f
JB		 2781 return err;
2782}
2783
2784static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2785{
4c476991 2786 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2787 struct key_parse key;
41ade00f 2788 int err;
4c476991 2789 struct net_device *dev = info->user_ptr[1];
41ade00f 2790
b9454e83
JB		 2791 err = nl80211_parse_key(info, &key);
2792 if (err)
2793 return err;
41ade00f 2794
b9454e83 2795 if (key.idx < 0)
41ade00f
JB		 2796 return -EINVAL;
2797
b9454e83
JB		 2798 /* only support setting default key */
2799 if (!key.def && !key.defmgmt)
41ade00f
JB		 2800 return -EINVAL;
2801
dbd2fd65 2802 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2803
dbd2fd65
JB		 2804 if (key.def) {
2805 if (!rdev->ops->set_default_key) {
2806 err = -EOPNOTSUPP;
2807 goto out;
2808 }
41ade00f 2809
dbd2fd65
JB		 2810 err = nl80211_key_allowed(dev->ieee80211_ptr);
2811 if (err)
2812 goto out;
2813
e35e4d28 2814 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2815 key.def_uni, key.def_multi);
2816
2817 if (err)
2818 goto out;
fffd0934 2819
3d23e349 2820#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2821 dev->ieee80211_ptr->wext.default_key = key.idx;
2822#endif
2823 } else {
2824 if (key.def_uni || !key.def_multi) {
2825 err = -EINVAL;
2826 goto out;
2827 }
2828
2829 if (!rdev->ops->set_default_mgmt_key) {
2830 err = -EOPNOTSUPP;
2831 goto out;
2832 }
2833
2834 err = nl80211_key_allowed(dev->ieee80211_ptr);
2835 if (err)
2836 goto out;
2837
e35e4d28 2838 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2839 if (err)
2840 goto out;
2841
2842#ifdef CONFIG_CFG80211_WEXT
2843 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2844#endif
dbd2fd65
JB		 2845 }
2846
2847 out:
fffd0934 2848 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2849
41ade00f
JB		 2850 return err;
2851}
2852
2853static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2854{
4c476991 2855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2856 int err;
4c476991 2857 struct net_device *dev = info->user_ptr[1];
b9454e83 2858 struct key_parse key;
e31b8213 2859 const u8 *mac_addr = NULL;
41ade00f 2860
b9454e83
JB		 2861 err = nl80211_parse_key(info, &key);
2862 if (err)
2863 return err;
41ade00f 2864
b9454e83 2865 if (!key.p.key)
41ade00f
JB		 2866 return -EINVAL;
2867
41ade00f
JB		 2868 if (info->attrs[NL80211_ATTR_MAC])
2869 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2870
e31b8213
JB		 2871 if (key.type == -1) {
2872 if (mac_addr)
2873 key.type = NL80211_KEYTYPE_PAIRWISE;
2874 else
2875 key.type = NL80211_KEYTYPE_GROUP;
2876 }
2877
2878 /* for now */
2879 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2880 key.type != NL80211_KEYTYPE_GROUP)
2881 return -EINVAL;
2882
4c476991
JB		 2883 if (!rdev->ops->add_key)
2884 return -EOPNOTSUPP;
25e47c18 2885
e31b8213
JB		 2886 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2887 key.type == NL80211_KEYTYPE_PAIRWISE,
2888 mac_addr))
4c476991 2889 return -EINVAL;
41ade00f 2890
fffd0934
JB		 2891 wdev_lock(dev->ieee80211_ptr);
2892 err = nl80211_key_allowed(dev->ieee80211_ptr);
2893 if (!err)
e35e4d28
HG		 2894 err = rdev_add_key(rdev, dev, key.idx,
2895 key.type == NL80211_KEYTYPE_PAIRWISE,
2896 mac_addr, &key.p);
fffd0934 2897 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2898
41ade00f
JB		 2899 return err;
2900}
2901
2902static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2903{
4c476991 2904 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2905 int err;
4c476991 2906 struct net_device *dev = info->user_ptr[1];
41ade00f 2907 u8 *mac_addr = NULL;
b9454e83 2908 struct key_parse key;
41ade00f 2909
b9454e83
JB		 2910 err = nl80211_parse_key(info, &key);
2911 if (err)
2912 return err;
41ade00f
JB		 2913
2914 if (info->attrs[NL80211_ATTR_MAC])
2915 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2916
e31b8213
JB		 2917 if (key.type == -1) {
2918 if (mac_addr)
2919 key.type = NL80211_KEYTYPE_PAIRWISE;
2920 else
2921 key.type = NL80211_KEYTYPE_GROUP;
2922 }
2923
2924 /* for now */
2925 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2926 key.type != NL80211_KEYTYPE_GROUP)
2927 return -EINVAL;
2928
4c476991
JB		 2929 if (!rdev->ops->del_key)
2930 return -EOPNOTSUPP;
41ade00f 2931
fffd0934
JB		 2932 wdev_lock(dev->ieee80211_ptr);
2933 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2934
2935 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2936 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2937 err = -ENOENT;
2938
fffd0934 2939 if (!err)
e35e4d28
HG		 2940 err = rdev_del_key(rdev, dev, key.idx,
2941 key.type == NL80211_KEYTYPE_PAIRWISE,
2942 mac_addr);
41ade00f 2943
3d23e349 2944#ifdef CONFIG_CFG80211_WEXT
08645126 2945 if (!err) {
b9454e83 2946 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2947 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2948 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2949 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2950 }
2951#endif
fffd0934 2952 wdev_unlock(dev->ieee80211_ptr);
08645126 2953
41ade00f
JB		 2954 return err;
2955}
2956
77765eaf
VT		 2957/* This function returns an error or the number of nested attributes */
2958static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2959{
2960 struct nlattr *attr;
2961 int n_entries = 0, tmp;
2962
2963 nla_for_each_nested(attr, nl_attr, tmp) {
2964 if (nla_len(attr) != ETH_ALEN)
2965 return -EINVAL;
2966
2967 n_entries++;
2968 }
2969
2970 return n_entries;
2971}
2972
2973/*
2974 * This function parses ACL information and allocates memory for ACL data.
2975 * On successful return, the calling function is responsible to free the
2976 * ACL buffer returned by this function.
2977 */
2978static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2979 struct genl_info *info)
2980{
2981 enum nl80211_acl_policy acl_policy;
2982 struct nlattr *attr;
2983 struct cfg80211_acl_data *acl;
2984 int i = 0, n_entries, tmp;
2985
2986 if (!wiphy->max_acl_mac_addrs)
2987 return ERR_PTR(-EOPNOTSUPP);
2988
2989 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2990 return ERR_PTR(-EINVAL);
2991
2992 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2993 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2994 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2995 return ERR_PTR(-EINVAL);
2996
2997 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2998 return ERR_PTR(-EINVAL);
2999
3000 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3001 if (n_entries < 0)
3002 return ERR_PTR(n_entries);
3003
3004 if (n_entries > wiphy->max_acl_mac_addrs)
3005 return ERR_PTR(-ENOTSUPP);
3006
3007 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3008 GFP_KERNEL);
3009 if (!acl)
3010 return ERR_PTR(-ENOMEM);
3011
3012 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3013 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3014 i++;
3015 }
3016
3017 acl->n_acl_entries = n_entries;
3018 acl->acl_policy = acl_policy;
3019
3020 return acl;
3021}
3022
3023static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3024{
3025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3026 struct net_device *dev = info->user_ptr[1];
3027 struct cfg80211_acl_data *acl;
3028 int err;
3029
3030 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3031 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3032 return -EOPNOTSUPP;
3033
3034 if (!dev->ieee80211_ptr->beacon_interval)
3035 return -EINVAL;
3036
3037 acl = parse_acl_data(&rdev->wiphy, info);
3038 if (IS_ERR(acl))
3039 return PTR_ERR(acl);
3040
3041 err = rdev_set_mac_acl(rdev, dev, acl);
3042
3043 kfree(acl);
3044
3045 return err;
3046}
3047
a1193be8 3048static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3049 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3050{
8860020e 3051 bool haveinfo = false;
ed1b6cc7 3052
a1193be8
SW		 3053 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3054 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3055 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3056 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3057 return -EINVAL;
3058
8860020e 3059 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3060
a1193be8
SW		 3061 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3062 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3063 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3064 if (!bcn->head_len)
3065 return -EINVAL;
3066 haveinfo = true;
ed1b6cc7
JB		 3067 }
3068
a1193be8
SW		 3069 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3070 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3071 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3072 haveinfo = true;
ed1b6cc7
JB		 3073 }
3074
4c476991
JB		 3075 if (!haveinfo)
3076 return -EINVAL;
3b85875a 3077
a1193be8
SW		 3078 if (attrs[NL80211_ATTR_IE]) {
3079 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3080 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3081 }
3082
a1193be8 3083 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3084 bcn->proberesp_ies =
a1193be8 3085 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3086 bcn->proberesp_ies_len =
a1193be8 3087 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3088 }
3089
a1193be8 3090 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3091 bcn->assocresp_ies =
a1193be8 3092 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3093 bcn->assocresp_ies_len =
a1193be8 3094 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3095 }
3096
a1193be8
SW		 3097 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3098 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3099 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3100 }
3101
8860020e
JB		 3102 return 0;
3103}
3104
46c1dd0c
FF		 3105static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3106 struct cfg80211_ap_settings *params)
3107{
3108 struct wireless_dev *wdev;
3109 bool ret = false;
3110
89a54e48 3111 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3112 if (wdev->iftype != NL80211_IFTYPE_AP &&
3113 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3114 continue;
3115
683b6d3b 3116 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3117 continue;
3118
683b6d3b 3119 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3120 ret = true;
3121 break;
3122 }
3123
46c1dd0c
FF		 3124 return ret;
3125}
3126
e39e5b5e
JM		 3127static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3128 enum nl80211_auth_type auth_type,
3129 enum nl80211_commands cmd)
3130{
3131 if (auth_type > NL80211_AUTHTYPE_MAX)
3132 return false;
3133
3134 switch (cmd) {
3135 case NL80211_CMD_AUTHENTICATE:
3136 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3137 auth_type == NL80211_AUTHTYPE_SAE)
3138 return false;
3139 return true;
3140 case NL80211_CMD_CONNECT:
3141 case NL80211_CMD_START_AP:
3142 /* SAE not supported yet */
3143 if (auth_type == NL80211_AUTHTYPE_SAE)
3144 return false;
3145 return true;
3146 default:
3147 return false;
3148 }
3149}
3150
8860020e
JB		 3151static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3152{
3153 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3154 struct net_device *dev = info->user_ptr[1];
3155 struct wireless_dev *wdev = dev->ieee80211_ptr;
3156 struct cfg80211_ap_settings params;
3157 int err;
3158
3159 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3160 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3161 return -EOPNOTSUPP;
3162
3163 if (!rdev->ops->start_ap)
3164 return -EOPNOTSUPP;
3165
3166 if (wdev->beacon_interval)
3167 return -EALREADY;
3168
3169 memset(&params, 0, sizeof(params));
3170
3171 /* these are required for START_AP */
3172 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3173 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3174 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3175 return -EINVAL;
3176
a1193be8 3177 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3178 if (err)
3179 return err;
3180
3181 params.beacon_interval =
3182 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3183 params.dtim_period =
3184 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3185
3186 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3187 if (err)
3188 return err;
3189
3190 /*
3191 * In theory, some of these attributes should be required here
3192 * but since they were not used when the command was originally
3193 * added, keep them optional for old user space programs to let
3194 * them continue to work with drivers that do not need the
3195 * additional information -- drivers must check!
3196 */
3197 if (info->attrs[NL80211_ATTR_SSID]) {
3198 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3199 params.ssid_len =
3200 nla_len(info->attrs[NL80211_ATTR_SSID]);
3201 if (params.ssid_len == 0 ||
3202 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3203 return -EINVAL;
3204 }
3205
3206 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3207 params.hidden_ssid = nla_get_u32(
3208 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3209 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3210 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3211 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3212 return -EINVAL;
3213 }
3214
3215 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3216
3217 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3218 params.auth_type = nla_get_u32(
3219 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3220 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3221 NL80211_CMD_START_AP))
8860020e
JB		 3222 return -EINVAL;
3223 } else
3224 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3225
3226 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3227 NL80211_MAX_NR_CIPHER_SUITES);
3228 if (err)
3229 return err;
3230
1b658f11
VT		 3231 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3232 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3233 return -EOPNOTSUPP;
3234 params.inactivity_timeout = nla_get_u16(
3235 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3236 }
3237
53cabad7
JB		 3238 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3239 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3240 return -EINVAL;
3241 params.p2p_ctwindow =
3242 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3243 if (params.p2p_ctwindow > 127)
3244 return -EINVAL;
3245 if (params.p2p_ctwindow != 0 &&
3246 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3247 return -EINVAL;
3248 }
3249
3250 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3251 u8 tmp;
3252
3253 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3254 return -EINVAL;
3255 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3256 if (tmp > 1)
3257 return -EINVAL;
3258 params.p2p_opp_ps = tmp;
3259 if (params.p2p_opp_ps != 0 &&
3260 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3261 return -EINVAL;
3262 }
3263
aa430da4 3264 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3265 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3266 if (err)
3267 return err;
3268 } else if (wdev->preset_chandef.chan) {
3269 params.chandef = wdev->preset_chandef;
46c1dd0c 3270 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3271 return -EINVAL;
3272
174e0cd2
IP		 3273 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3274 wdev->iftype))
aa430da4
JB		 3275 return -EINVAL;
3276
77765eaf
VT		 3277 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3278 params.acl = parse_acl_data(&rdev->wiphy, info);
3279 if (IS_ERR(params.acl))
3280 return PTR_ERR(params.acl);
3281 }
3282
c56589ed 3283 wdev_lock(wdev);
e35e4d28 3284 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3285 if (!err) {
683b6d3b 3286 wdev->preset_chandef = params.chandef;
8860020e 3287 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3288 wdev->chandef = params.chandef;
06e191e2
AQ		 3289 wdev->ssid_len = params.ssid_len;
3290 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3291 }
c56589ed 3292 wdev_unlock(wdev);
77765eaf
VT		 3293
3294 kfree(params.acl);
3295
56d1893d 3296 return err;
ed1b6cc7
JB		 3297}
3298
8860020e
JB		 3299static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3300{
3301 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3302 struct net_device *dev = info->user_ptr[1];
3303 struct wireless_dev *wdev = dev->ieee80211_ptr;
3304 struct cfg80211_beacon_data params;
3305 int err;
3306
3307 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3308 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3309 return -EOPNOTSUPP;
3310
3311 if (!rdev->ops->change_beacon)
3312 return -EOPNOTSUPP;
3313
3314 if (!wdev->beacon_interval)
3315 return -EINVAL;
3316
a1193be8 3317 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3318 if (err)
3319 return err;
3320
c56589ed
SW		 3321 wdev_lock(wdev);
3322 err = rdev_change_beacon(rdev, dev, &params);
3323 wdev_unlock(wdev);
3324
3325 return err;
8860020e
JB		 3326}
3327
3328static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3329{
4c476991
JB		 3330 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3331 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3332
7c8d5e03 3333 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3334}
3335
5727ef1b
JB		 3336static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3337 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3338 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3339 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3340 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3341 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3342 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3343};
3344
eccb8e8f 3345static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3346 enum nl80211_iftype iftype,
eccb8e8f 3347 struct station_parameters *params)
5727ef1b
JB		 3348{
3349 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3350 struct nlattr *nla;
5727ef1b
JB		 3351 int flag;
3352
eccb8e8f
JB		 3353 /*
3354 * Try parsing the new attribute first so userspace
3355 * can specify both for older kernels.
3356 */
3357 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3358 if (nla) {
3359 struct nl80211_sta_flag_update *sta_flags;
3360
3361 sta_flags = nla_data(nla);
3362 params->sta_flags_mask = sta_flags->mask;
3363 params->sta_flags_set = sta_flags->set;
77ee7c89 3364 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3365 if ((params->sta_flags_mask |
3366 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3367 return -EINVAL;
3368 return 0;
3369 }
3370
3371 /* if present, parse the old attribute */
5727ef1b 3372
eccb8e8f 3373 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3374 if (!nla)
3375 return 0;
3376
3377 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3378 nla, sta_flags_policy))
3379 return -EINVAL;
3380
bdd3ae3d
JB		 3381 /*
3382 * Only allow certain flags for interface types so that
3383 * other attributes are silently ignored. Remember that
3384 * this is backward compatibility code with old userspace
3385 * and shouldn't be hit in other cases anyway.
3386 */
3387 switch (iftype) {
3388 case NL80211_IFTYPE_AP:
3389 case NL80211_IFTYPE_AP_VLAN:
3390 case NL80211_IFTYPE_P2P_GO:
3391 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3392 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3393 BIT(NL80211_STA_FLAG_WME) |
3394 BIT(NL80211_STA_FLAG_MFP);
3395 break;
3396 case NL80211_IFTYPE_P2P_CLIENT:
3397 case NL80211_IFTYPE_STATION:
3398 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3399 BIT(NL80211_STA_FLAG_TDLS_PEER);
3400 break;
3401 case NL80211_IFTYPE_MESH_POINT:
3402 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3403 BIT(NL80211_STA_FLAG_MFP) |
3404 BIT(NL80211_STA_FLAG_AUTHORIZED);
3405 default:
3406 return -EINVAL;
3407 }
5727ef1b 3408
3383b5a6
JB		 3409 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3410 if (flags[flag]) {
eccb8e8f 3411 params->sta_flags_set |= (1<<flag);
5727ef1b 3412
3383b5a6
JB		 3413 /* no longer support new API additions in old API */
3414 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3415 return -EINVAL;
3416 }
3417 }
3418
5727ef1b
JB		 3419 return 0;
3420}
3421
c8dcfd8a
FF		 3422static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3423 int attr)
3424{
3425 struct nlattr *rate;
8eb41c8d
VK		 3426 u32 bitrate;
3427 u16 bitrate_compat;
c8dcfd8a
FF		 3428
3429 rate = nla_nest_start(msg, attr);
3430 if (!rate)
db9c64cf 3431 return false;
c8dcfd8a
FF		 3432
3433 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3434 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3435 /* report 16-bit bitrate only if we can */
3436 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3437 if (bitrate > 0 &&
3438 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3439 return false;
3440 if (bitrate_compat > 0 &&
3441 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3442 return false;
3443
3444 if (info->flags & RATE_INFO_FLAGS_MCS) {
3445 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3446 return false;
3447 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3448 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3449 return false;
3450 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3451 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3452 return false;
3453 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3454 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3455 return false;
3456 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3457 return false;
3458 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3459 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3460 return false;
3461 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3462 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3463 return false;
3464 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3465 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3466 return false;
3467 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3468 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3469 return false;
3470 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3471 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3472 return false;
3473 }
c8dcfd8a
FF		 3474
3475 nla_nest_end(msg, rate);
3476 return true;
c8dcfd8a
FF		 3477}
3478
119363c7
FF		 3479static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3480 int id)
3481{
3482 void *attr;
3483 int i = 0;
3484
3485 if (!mask)
3486 return true;
3487
3488 attr = nla_nest_start(msg, id);
3489 if (!attr)
3490 return false;
3491
3492 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3493 if (!(mask & BIT(i)))
3494 continue;
3495
3496 if (nla_put_u8(msg, i, signal[i]))
3497 return false;
3498 }
3499
3500 nla_nest_end(msg, attr);
3501
3502 return true;
3503}
3504
15e47304 3505static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3506 int flags,
3507 struct cfg80211_registered_device *rdev,
3508 struct net_device *dev,
98b62183 3509 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3510{
3511 void *hdr;
f4263c98 3512 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3513
15e47304 3514 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3515 if (!hdr)
3516 return -1;
3517
9360ffd1
DM		 3518 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3519 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3520 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3521 goto nla_put_failure;
f5ea9120 3522
2ec600d6
LCC		 3523 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3524 if (!sinfoattr)
fd5b74dc 3525 goto nla_put_failure;
9360ffd1
DM		 3526 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3527 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3528 sinfo->connected_time))
3529 goto nla_put_failure;
3530 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3531 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3532 sinfo->inactive_time))
3533 goto nla_put_failure;
42745e03
VK		 3534 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3535 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3536 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3537 (u32)sinfo->rx_bytes))
9360ffd1 3538 goto nla_put_failure;
42745e03 3539 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3540 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3541 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3542 (u32)sinfo->tx_bytes))
3543 goto nla_put_failure;
3544 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3545 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3546 sinfo->rx_bytes))
3547 goto nla_put_failure;
3548 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3549 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3550 sinfo->tx_bytes))
3551 goto nla_put_failure;
3552 if ((sinfo->filled & STATION_INFO_LLID) &&
3553 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3554 goto nla_put_failure;
3555 if ((sinfo->filled & STATION_INFO_PLID) &&
3556 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3557 goto nla_put_failure;
3558 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3559 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3560 sinfo->plink_state))
3561 goto nla_put_failure;
66266b3a
JL		 3562 switch (rdev->wiphy.signal_type) {
3563 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3564 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3565 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3566 sinfo->signal))
3567 goto nla_put_failure;
3568 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3569 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3570 sinfo->signal_avg))
3571 goto nla_put_failure;
66266b3a
JL		 3572 break;
3573 default:
3574 break;
3575 }
119363c7
FF		 3576 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3577 if (!nl80211_put_signal(msg, sinfo->chains,
3578 sinfo->chain_signal,
3579 NL80211_STA_INFO_CHAIN_SIGNAL))
3580 goto nla_put_failure;
3581 }
3582 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3583 if (!nl80211_put_signal(msg, sinfo->chains,
3584 sinfo->chain_signal_avg,
3585 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3586 goto nla_put_failure;
3587 }
420e7fab 3588 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3589 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3590 NL80211_STA_INFO_TX_BITRATE))
3591 goto nla_put_failure;
3592 }
3593 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3594 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3595 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3596 goto nla_put_failure;
420e7fab 3597 }
9360ffd1
DM		 3598 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3599 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3600 sinfo->rx_packets))
3601 goto nla_put_failure;
3602 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3603 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3604 sinfo->tx_packets))
3605 goto nla_put_failure;
3606 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3607 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3608 sinfo->tx_retries))
3609 goto nla_put_failure;
3610 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3611 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3612 sinfo->tx_failed))
3613 goto nla_put_failure;
3614 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3615 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3616 sinfo->beacon_loss_count))
3617 goto nla_put_failure;
3b1c5a53
MP		 3618 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3619 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3620 sinfo->local_pm))
3621 goto nla_put_failure;
3622 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3623 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3624 sinfo->peer_pm))
3625 goto nla_put_failure;
3626 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3627 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3628 sinfo->nonpeer_pm))
3629 goto nla_put_failure;
f4263c98
PS		 3630 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3631 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3632 if (!bss_param)
3633 goto nla_put_failure;
3634
9360ffd1
DM		 3635 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3636 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3637 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3638 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3639 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3640 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3641 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3642 sinfo->bss_param.dtim_period) ||
3643 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3644 sinfo->bss_param.beacon_interval))
3645 goto nla_put_failure;
f4263c98
PS		 3646
3647 nla_nest_end(msg, bss_param);
3648 }
9360ffd1
DM		 3649 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3650 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3651 sizeof(struct nl80211_sta_flag_update),
3652 &sinfo->sta_flags))
3653 goto nla_put_failure;
7eab0f64
JL		 3654 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3655 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3656 sinfo->t_offset))
3657 goto nla_put_failure;
2ec600d6 3658 nla_nest_end(msg, sinfoattr);
fd5b74dc 3659
9360ffd1
DM		 3660 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3661 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3662 sinfo->assoc_req_ies))
3663 goto nla_put_failure;
50d3dfb7 3664
fd5b74dc
JB		 3665 return genlmsg_end(msg, hdr);
3666
3667 nla_put_failure:
bc3ed28c
TG		 3668 genlmsg_cancel(msg, hdr);
3669 return -EMSGSIZE;
fd5b74dc
JB		 3670}
3671
2ec600d6 3672static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3673 struct netlink_callback *cb)
2ec600d6 3674{
2ec600d6 3675 struct station_info sinfo;
1b8ec87a 3676 struct cfg80211_registered_device *rdev;
97990a06 3677 struct wireless_dev *wdev;
2ec600d6 3678 u8 mac_addr[ETH_ALEN];
97990a06 3679 int sta_idx = cb->args[2];
2ec600d6 3680 int err;
2ec600d6 3681
1b8ec87a 3682 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3683 if (err)
3684 return err;
bba95fef 3685
97990a06
JB		 3686 if (!wdev->netdev) {
3687 err = -EINVAL;
3688 goto out_err;
3689 }
3690
1b8ec87a 3691 if (!rdev->ops->dump_station) {
eec60b03 3692 err = -EOPNOTSUPP;
bba95fef
JB		 3693 goto out_err;
3694 }
3695
bba95fef 3696 while (1) {
f612cedf 3697 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3698 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3699 mac_addr, &sinfo);
bba95fef
JB		 3700 if (err == -ENOENT)
3701 break;
3702 if (err)
3b85875a 3703 goto out_err;
bba95fef
JB		 3704
3705 if (nl80211_send_station(skb,
15e47304 3706 NETLINK_CB(cb->skb).portid,
bba95fef 3707 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3708 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3709 &sinfo) < 0)
3710 goto out;
3711
3712 sta_idx++;
3713 }
3714
3715
3716 out:
97990a06 3717 cb->args[2] = sta_idx;
bba95fef 3718 err = skb->len;
bba95fef 3719 out_err:
1b8ec87a 3720 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3721
3722 return err;
2ec600d6 3723}
fd5b74dc 3724
5727ef1b
JB		 3725static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3726{
4c476991
JB		 3727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3728 struct net_device *dev = info->user_ptr[1];
2ec600d6 3729 struct station_info sinfo;
fd5b74dc
JB		 3730 struct sk_buff *msg;
3731 u8 *mac_addr = NULL;
4c476991 3732 int err;
fd5b74dc 3733
2ec600d6 3734 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3735
3736 if (!info->attrs[NL80211_ATTR_MAC])
3737 return -EINVAL;
3738
3739 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3740
4c476991
JB		 3741 if (!rdev->ops->get_station)
3742 return -EOPNOTSUPP;
3b85875a 3743
e35e4d28 3744 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3745 if (err)
4c476991 3746 return err;
2ec600d6 3747
fd2120ca 3748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3749 if (!msg)
4c476991 3750 return -ENOMEM;
fd5b74dc 3751
15e47304 3752 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3753 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3754 nlmsg_free(msg);
3755 return -ENOBUFS;
3756 }
3b85875a 3757
4c476991 3758 return genlmsg_reply(msg, info);
5727ef1b
JB		 3759}
3760
77ee7c89
JB		 3761int cfg80211_check_station_change(struct wiphy *wiphy,
3762 struct station_parameters *params,
3763 enum cfg80211_station_type statype)
3764{
3765 if (params->listen_interval != -1)
3766 return -EINVAL;
3767 if (params->aid)
3768 return -EINVAL;
3769
3770 /* When you run into this, adjust the code below for the new flag */
3771 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3772
3773 switch (statype) {
eef941e6
TP		 3774 case CFG80211_STA_MESH_PEER_KERNEL:
3775 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3776 /*
3777 * No ignoring the TDLS flag here -- the userspace mesh
3778 * code doesn't have the bug of including TDLS in the
3779 * mask everywhere.
3780 */
3781 if (params->sta_flags_mask &
3782 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3783 BIT(NL80211_STA_FLAG_MFP) |
3784 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3785 return -EINVAL;
3786 break;
3787 case CFG80211_STA_TDLS_PEER_SETUP:
3788 case CFG80211_STA_TDLS_PEER_ACTIVE:
3789 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3790 return -EINVAL;
3791 /* ignore since it can't change */
3792 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3793 break;
3794 default:
3795 /* disallow mesh-specific things */
3796 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3797 return -EINVAL;
3798 if (params->local_pm)
3799 return -EINVAL;
3800 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3801 return -EINVAL;
3802 }
3803
3804 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3805 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3806 /* TDLS can't be set, ... */
3807 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3808 return -EINVAL;
3809 /*
3810 * ... but don't bother the driver with it. This works around
3811 * a hostapd/wpa_supplicant issue -- it always includes the
3812 * TLDS_PEER flag in the mask even for AP mode.
3813 */
3814 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3815 }
3816
3817 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3818 /* reject other things that can't change */
3819 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3820 return -EINVAL;
3821 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3822 return -EINVAL;
3823 if (params->supported_rates)
3824 return -EINVAL;
3825 if (params->ext_capab || params->ht_capa || params->vht_capa)
3826 return -EINVAL;
3827 }
3828
3829 if (statype != CFG80211_STA_AP_CLIENT) {
3830 if (params->vlan)
3831 return -EINVAL;
3832 }
3833
3834 switch (statype) {
3835 case CFG80211_STA_AP_MLME_CLIENT:
3836 /* Use this only for authorizing/unauthorizing a station */
3837 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3838 return -EOPNOTSUPP;
3839 break;
3840 case CFG80211_STA_AP_CLIENT:
3841 /* accept only the listed bits */
3842 if (params->sta_flags_mask &
3843 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3844 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3845 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3846 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3847 BIT(NL80211_STA_FLAG_WME) |
3848 BIT(NL80211_STA_FLAG_MFP)))
3849 return -EINVAL;
3850
3851 /* but authenticated/associated only if driver handles it */
3852 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3853 params->sta_flags_mask &
3854 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3855 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3856 return -EINVAL;
3857 break;
3858 case CFG80211_STA_IBSS:
3859 case CFG80211_STA_AP_STA:
3860 /* reject any changes other than AUTHORIZED */
3861 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3862 return -EINVAL;
3863 break;
3864 case CFG80211_STA_TDLS_PEER_SETUP:
3865 /* reject any changes other than AUTHORIZED or WME */
3866 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3867 BIT(NL80211_STA_FLAG_WME)))
3868 return -EINVAL;
3869 /* force (at least) rates when authorizing */
3870 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3871 !params->supported_rates)
3872 return -EINVAL;
3873 break;
3874 case CFG80211_STA_TDLS_PEER_ACTIVE:
3875 /* reject any changes */
3876 return -EINVAL;
eef941e6 3877 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3878 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3879 return -EINVAL;
3880 break;
eef941e6 3881 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3882 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3883 return -EINVAL;
3884 break;
3885 }
3886
3887 return 0;
3888}
3889EXPORT_SYMBOL(cfg80211_check_station_change);
3890
5727ef1b 3891/*
c258d2de 3892 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3893 */
80b99899
JB		 3894static struct net_device *get_vlan(struct genl_info *info,
3895 struct cfg80211_registered_device *rdev)
5727ef1b 3896{
463d0183 3897 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3898 struct net_device *v;
3899 int ret;
3900
3901 if (!vlanattr)
3902 return NULL;
3903
3904 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3905 if (!v)
3906 return ERR_PTR(-ENODEV);
3907
3908 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3909 ret = -EINVAL;
3910 goto error;
5727ef1b 3911 }
80b99899 3912
77ee7c89
JB		 3913 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3914 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3915 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3916 ret = -EINVAL;
3917 goto error;
3918 }
3919
80b99899
JB		 3920 if (!netif_running(v)) {
3921 ret = -ENETDOWN;
3922 goto error;
3923 }
3924
3925 return v;
3926 error:
3927 dev_put(v);
3928 return ERR_PTR(ret);
5727ef1b
JB		 3929}
3930
94e860f1
JB		 3931static const struct nla_policy
3932nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 3933 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3934 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3935};
3936
ff276691
JB		 3937static int nl80211_parse_sta_wme(struct genl_info *info,
3938 struct station_parameters *params)
df881293 3939{
df881293
JM		 3940 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3941 struct nlattr *nla;
3942 int err;
3943
df881293
JM		 3944 /* parse WME attributes if present */
3945 if (!info->attrs[NL80211_ATTR_STA_WME])
3946 return 0;
3947
3948 nla = info->attrs[NL80211_ATTR_STA_WME];
3949 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3950 nl80211_sta_wme_policy);
3951 if (err)
3952 return err;
3953
3954 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3955 params->uapsd_queues = nla_get_u8(
3956 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3957 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3958 return -EINVAL;
3959
3960 if (tb[NL80211_STA_WME_MAX_SP])
3961 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3962
3963 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3964 return -EINVAL;
3965
3966 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3967
3968 return 0;
3969}
3970
c01fc9ad
SD		 3971static int nl80211_parse_sta_channel_info(struct genl_info *info,
3972 struct station_parameters *params)
3973{
3974 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
3975 params->supported_channels =
3976 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3977 params->supported_channels_len =
3978 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3979 /*
3980 * Need to include at least one (first channel, number of
3981 * channels) tuple for each subband, and must have proper
3982 * tuples for the rest of the data as well.
3983 */
3984 if (params->supported_channels_len < 2)
3985 return -EINVAL;
3986 if (params->supported_channels_len % 2)
3987 return -EINVAL;
3988 }
3989
3990 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
3991 params->supported_oper_classes =
3992 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3993 params->supported_oper_classes_len =
3994 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3995 /*
3996 * The value of the Length field of the Supported Operating
3997 * Classes element is between 2 and 253.
3998 */
3999 if (params->supported_oper_classes_len < 2 ||
4000 params->supported_oper_classes_len > 253)
4001 return -EINVAL;
4002 }
4003 return 0;
4004}
4005
ff276691
JB		 4006static int nl80211_set_station_tdls(struct genl_info *info,
4007 struct station_parameters *params)
4008{
c01fc9ad 4009 int err;
ff276691 4010 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4011 if (info->attrs[NL80211_ATTR_PEER_AID])
4012 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4013 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4014 params->ht_capa =
4015 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4016 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4017 params->vht_capa =
4018 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4019
c01fc9ad
SD		 4020 err = nl80211_parse_sta_channel_info(info, params);
4021 if (err)
4022 return err;
4023
ff276691
JB		 4024 return nl80211_parse_sta_wme(info, params);
4025}
4026
5727ef1b
JB		 4027static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4028{
4c476991 4029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4030 struct net_device *dev = info->user_ptr[1];
5727ef1b 4031 struct station_parameters params;
77ee7c89
JB		 4032 u8 *mac_addr;
4033 int err;
5727ef1b
JB		 4034
4035 memset(&params, 0, sizeof(params));
4036
4037 params.listen_interval = -1;
4038
77ee7c89
JB		 4039 if (!rdev->ops->change_station)
4040 return -EOPNOTSUPP;
4041
5727ef1b
JB		 4042 if (info->attrs[NL80211_ATTR_STA_AID])
4043 return -EINVAL;
4044
4045 if (!info->attrs[NL80211_ATTR_MAC])
4046 return -EINVAL;
4047
4048 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4049
4050 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4051 params.supported_rates =
4052 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4053 params.supported_rates_len =
4054 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4055 }
4056
9d62a986
JM		 4057 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4058 params.capability =
4059 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4060 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4061 }
4062
4063 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4064 params.ext_capab =
4065 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4066 params.ext_capab_len =
4067 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4068 }
4069
df881293 4070 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4071 return -EINVAL;
36aedc90 4072
bdd3ae3d 4073 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4074 return -EINVAL;
4075
f8bacc21 4076 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4077 params.plink_action =
f8bacc21
JB		 4078 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4079 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4080 return -EINVAL;
4081 }
2ec600d6 4082
f8bacc21 4083 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4084 params.plink_state =
f8bacc21
JB		 4085 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4086 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4087 return -EINVAL;
4088 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4089 }
9c3990aa 4090
3b1c5a53
MP		 4091 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4092 enum nl80211_mesh_power_mode pm = nla_get_u32(
4093 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4094
4095 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4096 pm > NL80211_MESH_POWER_MAX)
4097 return -EINVAL;
4098
4099 params.local_pm = pm;
4100 }
4101
77ee7c89
JB		 4102 /* Include parameters for TDLS peer (will check later) */
4103 err = nl80211_set_station_tdls(info, &params);
4104 if (err)
4105 return err;
4106
4107 params.vlan = get_vlan(info, rdev);
4108 if (IS_ERR(params.vlan))
4109 return PTR_ERR(params.vlan);
4110
a97f4424
JB		 4111 switch (dev->ieee80211_ptr->iftype) {
4112 case NL80211_IFTYPE_AP:
4113 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4114 case NL80211_IFTYPE_P2P_GO:
074ac8df 4115 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4116 case NL80211_IFTYPE_STATION:
267335d6 4117 case NL80211_IFTYPE_ADHOC:
a97f4424 4118 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4119 break;
4120 default:
77ee7c89
JB		 4121 err = -EOPNOTSUPP;
4122 goto out_put_vlan;
034d655e
JB		 4123 }
4124
77ee7c89 4125 /* driver will call cfg80211_check_station_change() */
e35e4d28 4126 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4127
77ee7c89 4128 out_put_vlan:
5727ef1b
JB		 4129 if (params.vlan)
4130 dev_put(params.vlan);
3b85875a 4131
5727ef1b
JB		 4132 return err;
4133}
4134
4135static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4136{
4c476991 4137 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4138 int err;
4c476991 4139 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4140 struct station_parameters params;
4141 u8 *mac_addr = NULL;
4142
4143 memset(&params, 0, sizeof(params));
4144
984c311b
JB		 4145 if (!rdev->ops->add_station)
4146 return -EOPNOTSUPP;
4147
5727ef1b
JB		 4148 if (!info->attrs[NL80211_ATTR_MAC])
4149 return -EINVAL;
4150
5727ef1b
JB		 4151 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4152 return -EINVAL;
4153
4154 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4155 return -EINVAL;
4156
5e4b6f56
JM		 4157 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4158 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4159 return -EINVAL;
4160
5727ef1b
JB		 4161 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4162 params.supported_rates =
4163 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4164 params.supported_rates_len =
4165 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4166 params.listen_interval =
4167 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4168
3d124ea2 4169 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4170 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4171 else
4172 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4173 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4174 return -EINVAL;
51b50fbe 4175
9d62a986
JM		 4176 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4177 params.capability =
4178 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4179 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4180 }
4181
4182 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4183 params.ext_capab =
4184 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4185 params.ext_capab_len =
4186 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4187 }
4188
36aedc90
JM		 4189 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4190 params.ht_capa =
4191 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4192
f461be3e
MP		 4193 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4194 params.vht_capa =
4195 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4196
60f4a7b1
MK		 4197 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4198 params.opmode_notif_used = true;
4199 params.opmode_notif =
4200 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4201 }
4202
f8bacc21 4203 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4204 params.plink_action =
f8bacc21
JB		 4205 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4206 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4207 return -EINVAL;
4208 }
96b78dff 4209
c01fc9ad
SD		 4210 err = nl80211_parse_sta_channel_info(info, &params);
4211 if (err)
4212 return err;
4213
ff276691
JB		 4214 err = nl80211_parse_sta_wme(info, &params);
4215 if (err)
4216 return err;
bdd90d5e 4217
bdd3ae3d 4218 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4219 return -EINVAL;
4220
77ee7c89
JB		 4221 /* When you run into this, adjust the code below for the new flag */
4222 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4223
bdd90d5e
JB		 4224 switch (dev->ieee80211_ptr->iftype) {
4225 case NL80211_IFTYPE_AP:
4226 case NL80211_IFTYPE_AP_VLAN:
4227 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4228 /* ignore WME attributes if iface/sta is not capable */
4229 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4230 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4231 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4232
bdd90d5e 4233 /* TDLS peers cannot be added */
3d124ea2
JM		 4234 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4235 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4236 return -EINVAL;
bdd90d5e
JB		 4237 /* but don't bother the driver with it */
4238 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4239
d582cffb
JB		 4240 /* allow authenticated/associated only if driver handles it */
4241 if (!(rdev->wiphy.features &
4242 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4243 params.sta_flags_mask &
4244 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4245 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4246 return -EINVAL;
4247
bdd90d5e
JB		 4248 /* must be last in here for error handling */
4249 params.vlan = get_vlan(info, rdev);
4250 if (IS_ERR(params.vlan))
4251 return PTR_ERR(params.vlan);
4252 break;
4253 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4254 /* ignore uAPSD data */
4255 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4256
d582cffb
JB		 4257 /* associated is disallowed */
4258 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4259 return -EINVAL;
bdd90d5e 4260 /* TDLS peers cannot be added */
3d124ea2
JM		 4261 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4262 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4263 return -EINVAL;
4264 break;
4265 case NL80211_IFTYPE_STATION:
93d08f0b 4266 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4267 /* ignore uAPSD data */
4268 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4269
77ee7c89
JB		 4270 /* these are disallowed */
4271 if (params.sta_flags_mask &
4272 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4273 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4274 return -EINVAL;
bdd90d5e
JB		 4275 /* Only TDLS peers can be added */
4276 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4277 return -EINVAL;
4278 /* Can only add if TDLS ... */
4279 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4280 return -EOPNOTSUPP;
4281 /* ... with external setup is supported */
4282 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4283 return -EOPNOTSUPP;
77ee7c89
JB		 4284 /*
4285 * Older wpa_supplicant versions always mark the TDLS peer
4286 * as authorized, but it shouldn't yet be.
4287 */
4288 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4289 break;
4290 default:
4291 return -EOPNOTSUPP;
c75786c9
EP		 4292 }
4293
bdd90d5e 4294 /* be aware of params.vlan when changing code here */
5727ef1b 4295
e35e4d28 4296 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4297
5727ef1b
JB		 4298 if (params.vlan)
4299 dev_put(params.vlan);
5727ef1b
JB		 4300 return err;
4301}
4302
4303static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4304{
4c476991
JB		 4305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4306 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4307 u8 *mac_addr = NULL;
4308
4309 if (info->attrs[NL80211_ATTR_MAC])
4310 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4311
e80cf853 4312 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4313 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4314 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4315 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4316 return -EINVAL;
5727ef1b 4317
4c476991
JB		 4318 if (!rdev->ops->del_station)
4319 return -EOPNOTSUPP;
3b85875a 4320
e35e4d28 4321 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4322}
4323
15e47304 4324static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4325 int flags, struct net_device *dev,
4326 u8 *dst, u8 *next_hop,
4327 struct mpath_info *pinfo)
4328{
4329 void *hdr;
4330 struct nlattr *pinfoattr;
4331
15e47304 4332 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4333 if (!hdr)
4334 return -1;
4335
9360ffd1
DM		 4336 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4337 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4338 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4339 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4340 goto nla_put_failure;
f5ea9120 4341
2ec600d6
LCC		 4342 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4343 if (!pinfoattr)
4344 goto nla_put_failure;
9360ffd1
DM		 4345 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4346 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4347 pinfo->frame_qlen))
4348 goto nla_put_failure;
4349 if (((pinfo->filled & MPATH_INFO_SN) &&
4350 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4351 ((pinfo->filled & MPATH_INFO_METRIC) &&
4352 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4353 pinfo->metric)) ||
4354 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4355 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4356 pinfo->exptime)) ||
4357 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4358 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4359 pinfo->flags)) ||
4360 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4361 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4362 pinfo->discovery_timeout)) ||
4363 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4364 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4365 pinfo->discovery_retries)))
4366 goto nla_put_failure;
2ec600d6
LCC		 4367
4368 nla_nest_end(msg, pinfoattr);
4369
4370 return genlmsg_end(msg, hdr);
4371
4372 nla_put_failure:
bc3ed28c
TG		 4373 genlmsg_cancel(msg, hdr);
4374 return -EMSGSIZE;
2ec600d6
LCC		 4375}
4376
4377static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4378 struct netlink_callback *cb)
2ec600d6 4379{
2ec600d6 4380 struct mpath_info pinfo;
1b8ec87a 4381 struct cfg80211_registered_device *rdev;
97990a06 4382 struct wireless_dev *wdev;
2ec600d6
LCC		 4383 u8 dst[ETH_ALEN];
4384 u8 next_hop[ETH_ALEN];
97990a06 4385 int path_idx = cb->args[2];
2ec600d6 4386 int err;
2ec600d6 4387
1b8ec87a 4388 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4389 if (err)
4390 return err;
bba95fef 4391
1b8ec87a 4392 if (!rdev->ops->dump_mpath) {
eec60b03 4393 err = -EOPNOTSUPP;
bba95fef
JB		 4394 goto out_err;
4395 }
4396
97990a06 4397 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4398 err = -EOPNOTSUPP;
0448b5fc 4399 goto out_err;
eec60b03
JM		 4400 }
4401
bba95fef 4402 while (1) {
1b8ec87a 4403 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4404 next_hop, &pinfo);
bba95fef 4405 if (err == -ENOENT)
2ec600d6 4406 break;
bba95fef 4407 if (err)
3b85875a 4408 goto out_err;
2ec600d6 4409
15e47304 4410 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4411 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4412 wdev->netdev, dst, next_hop,
bba95fef
JB		 4413 &pinfo) < 0)
4414 goto out;
2ec600d6 4415
bba95fef 4416 path_idx++;
2ec600d6 4417 }
2ec600d6 4418
2ec600d6 4419
bba95fef 4420 out:
97990a06 4421 cb->args[2] = path_idx;
bba95fef 4422 err = skb->len;
bba95fef 4423 out_err:
1b8ec87a 4424 nl80211_finish_wdev_dump(rdev);
bba95fef 4425 return err;
2ec600d6
LCC		 4426}
4427
4428static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4429{
4c476991 4430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4431 int err;
4c476991 4432 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4433 struct mpath_info pinfo;
4434 struct sk_buff *msg;
4435 u8 *dst = NULL;
4436 u8 next_hop[ETH_ALEN];
4437
4438 memset(&pinfo, 0, sizeof(pinfo));
4439
4440 if (!info->attrs[NL80211_ATTR_MAC])
4441 return -EINVAL;
4442
4443 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4444
4c476991
JB		 4445 if (!rdev->ops->get_mpath)
4446 return -EOPNOTSUPP;
2ec600d6 4447
4c476991
JB		 4448 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4449 return -EOPNOTSUPP;
eec60b03 4450
e35e4d28 4451 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4452 if (err)
4c476991 4453 return err;
2ec600d6 4454
fd2120ca 4455 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4456 if (!msg)
4c476991 4457 return -ENOMEM;
2ec600d6 4458
15e47304 4459 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4460 dev, dst, next_hop, &pinfo) < 0) {
4461 nlmsg_free(msg);
4462 return -ENOBUFS;
4463 }
3b85875a 4464
4c476991 4465 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4466}
4467
4468static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4469{
4c476991
JB		 4470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4471 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4472 u8 *dst = NULL;
4473 u8 *next_hop = NULL;
4474
4475 if (!info->attrs[NL80211_ATTR_MAC])
4476 return -EINVAL;
4477
4478 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4479 return -EINVAL;
4480
4481 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4482 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4483
4c476991
JB		 4484 if (!rdev->ops->change_mpath)
4485 return -EOPNOTSUPP;
35a8efe1 4486
4c476991
JB		 4487 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4488 return -EOPNOTSUPP;
2ec600d6 4489
e35e4d28 4490 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4491}
4c476991 4492
2ec600d6
LCC		 4493static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4494{
4c476991
JB		 4495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4496 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4497 u8 *dst = NULL;
4498 u8 *next_hop = NULL;
4499
4500 if (!info->attrs[NL80211_ATTR_MAC])
4501 return -EINVAL;
4502
4503 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4504 return -EINVAL;
4505
4506 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4507 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4508
4c476991
JB		 4509 if (!rdev->ops->add_mpath)
4510 return -EOPNOTSUPP;
35a8efe1 4511
4c476991
JB		 4512 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4513 return -EOPNOTSUPP;
2ec600d6 4514
e35e4d28 4515 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4516}
4517
4518static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4519{
4c476991
JB		 4520 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4521 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4522 u8 *dst = NULL;
4523
4524 if (info->attrs[NL80211_ATTR_MAC])
4525 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4526
4c476991
JB		 4527 if (!rdev->ops->del_mpath)
4528 return -EOPNOTSUPP;
3b85875a 4529
e35e4d28 4530 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4531}
4532
9f1ba906
JM		 4533static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4534{
4c476991
JB		 4535 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4536 struct net_device *dev = info->user_ptr[1];
c56589ed 4537 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4538 struct bss_parameters params;
c56589ed 4539 int err;
9f1ba906
JM		 4540
4541 memset(&params, 0, sizeof(params));
4542 /* default to not changing parameters */
4543 params.use_cts_prot = -1;
4544 params.use_short_preamble = -1;
4545 params.use_short_slot_time = -1;
fd8aaaf3 4546 params.ap_isolate = -1;
50b12f59 4547 params.ht_opmode = -1;
53cabad7
JB		 4548 params.p2p_ctwindow = -1;
4549 params.p2p_opp_ps = -1;
9f1ba906
JM		 4550
4551 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4552 params.use_cts_prot =
4553 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4554 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4555 params.use_short_preamble =
4556 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4557 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4558 params.use_short_slot_time =
4559 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4560 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4561 params.basic_rates =
4562 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4563 params.basic_rates_len =
4564 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4565 }
fd8aaaf3
FF		 4566 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4567 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4568 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4569 params.ht_opmode =
4570 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4571
53cabad7
JB		 4572 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4573 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4574 return -EINVAL;
4575 params.p2p_ctwindow =
4576 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4577 if (params.p2p_ctwindow < 0)
4578 return -EINVAL;
4579 if (params.p2p_ctwindow != 0 &&
4580 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4581 return -EINVAL;
4582 }
4583
4584 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4585 u8 tmp;
4586
4587 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4588 return -EINVAL;
4589 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4590 if (tmp > 1)
4591 return -EINVAL;
4592 params.p2p_opp_ps = tmp;
4593 if (params.p2p_opp_ps &&
4594 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4595 return -EINVAL;
4596 }
4597
4c476991
JB		 4598 if (!rdev->ops->change_bss)
4599 return -EOPNOTSUPP;
9f1ba906 4600
074ac8df 4601 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4602 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4603 return -EOPNOTSUPP;
3b85875a 4604
c56589ed
SW		 4605 wdev_lock(wdev);
4606 err = rdev_change_bss(rdev, dev, &params);
4607 wdev_unlock(wdev);
4608
4609 return err;
9f1ba906
JM		 4610}
4611
b54452b0 4612static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4613 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4614 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4615 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4616 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4617 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4618 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4619 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4620};
4621
4622static int parse_reg_rule(struct nlattr *tb[],
4623 struct ieee80211_reg_rule *reg_rule)
4624{
4625 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4626 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4627
4628 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4629 return -EINVAL;
4630 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4631 return -EINVAL;
4632 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4633 return -EINVAL;
b0dfd2ea
JD		 4634 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4635 return -EINVAL;
b2e1b302
LR		 4636 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4637 return -EINVAL;
4638
4639 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4640
4641 freq_range->start_freq_khz =
4642 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4643 freq_range->end_freq_khz =
4644 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4645 freq_range->max_bandwidth_khz =
4646 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4647
4648 power_rule->max_eirp =
4649 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4650
4651 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4652 power_rule->max_antenna_gain =
4653 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4654
089027e5
JD		 4655 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4656 reg_rule->dfs_cac_ms =
4657 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4658
b2e1b302
LR		 4659 return 0;
4660}
4661
4662static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4663{
b2e1b302 4664 char *data = NULL;
57b5ce07 4665 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4666
80778f18
LR		 4667 /*
4668 * You should only get this when cfg80211 hasn't yet initialized
4669 * completely when built-in to the kernel right between the time
4670 * window between nl80211_init() and regulatory_init(), if that is
4671 * even possible.
4672 */
458f4f9e 4673 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4674 return -EINPROGRESS;
80778f18 4675
57b5ce07
LR		 4676 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4677 user_reg_hint_type =
4678 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4679 else
4680 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4681
4682 switch (user_reg_hint_type) {
4683 case NL80211_USER_REG_HINT_USER:
4684 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4685 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4686 return -EINVAL;
4687
4688 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4689 return regulatory_hint_user(data, user_reg_hint_type);
4690 case NL80211_USER_REG_HINT_INDOOR:
4691 return regulatory_hint_indoor_user();
57b5ce07
LR		 4692 default:
4693 return -EINVAL;
4694 }
b2e1b302
LR		 4695}
4696
24bdd9f4 4697static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4698 struct genl_info *info)
93da9cc1 4699{
4c476991 4700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4701 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4702 struct wireless_dev *wdev = dev->ieee80211_ptr;
4703 struct mesh_config cur_params;
4704 int err = 0;
93da9cc1 4705 void *hdr;
4706 struct nlattr *pinfoattr;
4707 struct sk_buff *msg;
4708
29cbe68c
JB		 4709 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4710 return -EOPNOTSUPP;
4711
24bdd9f4 4712 if (!rdev->ops->get_mesh_config)
4c476991 4713 return -EOPNOTSUPP;
f3f92586 4714
29cbe68c
JB		 4715 wdev_lock(wdev);
4716 /* If not connected, get default parameters */
4717 if (!wdev->mesh_id_len)
4718 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4719 else
e35e4d28 4720 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4721 wdev_unlock(wdev);
4722
93da9cc1 4723 if (err)
4c476991 4724 return err;
93da9cc1 4725
4726 /* Draw up a netlink message to send back */
fd2120ca 4727 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4728 if (!msg)
4729 return -ENOMEM;
15e47304 4730 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4731 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4732 if (!hdr)
efe1cf0c 4733 goto out;
24bdd9f4 4734 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4735 if (!pinfoattr)
4736 goto nla_put_failure;
9360ffd1
DM		 4737 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4738 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4739 cur_params.dot11MeshRetryTimeout) ||
4740 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4741 cur_params.dot11MeshConfirmTimeout) ||
4742 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4743 cur_params.dot11MeshHoldingTimeout) ||
4744 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4745 cur_params.dot11MeshMaxPeerLinks) ||
4746 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4747 cur_params.dot11MeshMaxRetries) ||
4748 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4749 cur_params.dot11MeshTTL) ||
4750 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4751 cur_params.element_ttl) ||
4752 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4753 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4754 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4755 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4756 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4757 cur_params.dot11MeshHWMPmaxPREQretries) ||
4758 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4759 cur_params.path_refresh_time) ||
4760 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4761 cur_params.min_discovery_timeout) ||
4762 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4763 cur_params.dot11MeshHWMPactivePathTimeout) ||
4764 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4765 cur_params.dot11MeshHWMPpreqMinInterval) ||
4766 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4767 cur_params.dot11MeshHWMPperrMinInterval) ||
4768 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4769 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4770 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4771 cur_params.dot11MeshHWMPRootMode) ||
4772 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4773 cur_params.dot11MeshHWMPRannInterval) ||
4774 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4775 cur_params.dot11MeshGateAnnouncementProtocol) ||
4776 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4777 cur_params.dot11MeshForwarding) ||
4778 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4779 cur_params.rssi_threshold) ||
4780 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4781 cur_params.ht_opmode) ||
4782 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4783 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4784 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4785 cur_params.dot11MeshHWMProotInterval) ||
4786 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4787 cur_params.dot11MeshHWMPconfirmationInterval) ||
4788 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4789 cur_params.power_mode) ||
4790 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4791 cur_params.dot11MeshAwakeWindowDuration) ||
4792 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4793 cur_params.plink_timeout))
9360ffd1 4794 goto nla_put_failure;
93da9cc1 4795 nla_nest_end(msg, pinfoattr);
4796 genlmsg_end(msg, hdr);
4c476991 4797 return genlmsg_reply(msg, info);
93da9cc1 4798
3b85875a 4799 nla_put_failure:
93da9cc1 4800 genlmsg_cancel(msg, hdr);
efe1cf0c 4801 out:
d080e275 4802 nlmsg_free(msg);
4c476991 4803 return -ENOBUFS;
93da9cc1 4804}
4805
b54452b0 4806static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4807 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4808 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4809 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4810 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4811 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4812 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4813 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4814 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4815 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4816 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4817 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4818 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4819 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4820 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4821 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4822 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4823 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4824 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4825 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4826 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4827 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4828 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4829 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4830 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4831 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4832 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4833 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4834 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4835};
4836
c80d545d
JC		 4837static const struct nla_policy
4838 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4839 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4840 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4841 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4842 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4843 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4844 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4845 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4846 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4847 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4848};
4849
24bdd9f4 4850static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4851 struct mesh_config *cfg,
4852 u32 *mask_out)
93da9cc1 4853{
93da9cc1 4854 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4855 u32 mask = 0;
93da9cc1 4856
ea54fba2
MP		 4857#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4858do { \
4859 if (tb[attr]) { \
4860 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4861 return -EINVAL; \
4862 cfg->param = fn(tb[attr]); \
4863 mask |= (1 << (attr - 1)); \
4864 } \
4865} while (0)
bd90fdcc
JB		 4866
4867
24bdd9f4 4868 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4869 return -EINVAL;
4870 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4871 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4872 nl80211_meshconf_params_policy))
93da9cc1 4873 return -EINVAL;
4874
93da9cc1 4875 /* This makes sure that there aren't more than 32 mesh config
4876 * parameters (otherwise our bitfield scheme would not work.) */
4877 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4878
4879 /* Fill in the params struct */
ea54fba2 4880 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4881 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4882 nla_get_u16);
ea54fba2 4883 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4884 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4885 nla_get_u16);
ea54fba2 4886 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4887 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4888 nla_get_u16);
ea54fba2 4889 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4890 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4891 nla_get_u16);
ea54fba2 4892 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4893 mask, NL80211_MESHCONF_MAX_RETRIES,
4894 nla_get_u8);
ea54fba2 4895 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4896 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4897 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4898 mask, NL80211_MESHCONF_ELEMENT_TTL,
4899 nla_get_u8);
ea54fba2 4900 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4901 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4902 nla_get_u8);
ea54fba2
MP		 4903 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4904 1, 255, mask,
a4f606ea
CYY		 4905 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4906 nla_get_u32);
ea54fba2 4907 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4908 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4909 nla_get_u8);
ea54fba2 4910 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4911 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4912 nla_get_u32);
ea54fba2 4913 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4914 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4915 nla_get_u16);
ea54fba2
MP		 4916 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4917 1, 65535, mask,
a4f606ea
CYY		 4918 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4919 nla_get_u32);
93da9cc1 4920 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4921 1, 65535, mask,
4922 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4923 nla_get_u16);
dca7e943 4924 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4925 1, 65535, mask,
4926 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4927 nla_get_u16);
93da9cc1 4928 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4929 dot11MeshHWMPnetDiameterTraversalTime,
4930 1, 65535, mask,
a4f606ea
CYY		 4931 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4932 nla_get_u16);
ea54fba2
MP		 4933 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4934 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4935 nla_get_u8);
4936 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4937 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4938 nla_get_u16);
63c5723b 4939 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4940 dot11MeshGateAnnouncementProtocol, 0, 1,
4941 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4942 nla_get_u8);
ea54fba2 4943 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4944 mask, NL80211_MESHCONF_FORWARDING,
4945 nla_get_u8);
83374fe9 4946 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4947 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4948 nla_get_s32);
ea54fba2 4949 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4950 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4951 nla_get_u16);
4952 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4953 1, 65535, mask,
ac1073a6
CYY		 4954 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4955 nla_get_u32);
ea54fba2 4956 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4957 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4958 nla_get_u16);
4959 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4960 dot11MeshHWMPconfirmationInterval,
4961 1, 65535, mask,
728b19e5 4962 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4963 nla_get_u16);
3b1c5a53
MP		 4964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4965 NL80211_MESH_POWER_ACTIVE,
4966 NL80211_MESH_POWER_MAX,
4967 mask, NL80211_MESHCONF_POWER_MODE,
4968 nla_get_u32);
4969 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4970 0, 65535, mask,
4971 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 4972 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4973 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4974 nla_get_u32);
bd90fdcc
JB		 4975 if (mask_out)
4976 *mask_out = mask;
c80d545d 4977
bd90fdcc
JB		 4978 return 0;
4979
4980#undef FILL_IN_MESH_PARAM_IF_SET
4981}
4982
c80d545d
JC		 4983static int nl80211_parse_mesh_setup(struct genl_info *info,
4984 struct mesh_setup *setup)
4985{
bb2798d4 4986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4987 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4988
4989 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4990 return -EINVAL;
4991 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4992 info->attrs[NL80211_ATTR_MESH_SETUP],
4993 nl80211_mesh_setup_params_policy))
4994 return -EINVAL;
4995
d299a1f2
JC		 4996 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4997 setup->sync_method =
4998 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4999 IEEE80211_SYNC_METHOD_VENDOR :
5000 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5001
c80d545d
JC		 5002 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5003 setup->path_sel_proto =
5004 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5005 IEEE80211_PATH_PROTOCOL_VENDOR :
5006 IEEE80211_PATH_PROTOCOL_HWMP;
5007
5008 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5009 setup->path_metric =
5010 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5011 IEEE80211_PATH_METRIC_VENDOR :
5012 IEEE80211_PATH_METRIC_AIRTIME;
5013
581a8b0f
JC		 5014
5015 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5016 struct nlattr *ieattr =
581a8b0f 5017 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5018 if (!is_valid_ie_attr(ieattr))
5019 return -EINVAL;
581a8b0f
JC		 5020 setup->ie = nla_data(ieattr);
5021 setup->ie_len = nla_len(ieattr);
c80d545d 5022 }
bb2798d4
TP		 5023 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5024 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5025 return -EINVAL;
5026 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5027 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5028 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5029 if (setup->is_secure)
5030 setup->user_mpm = true;
c80d545d 5031
6e16d90b
CT		 5032 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5033 if (!setup->user_mpm)
5034 return -EINVAL;
5035 setup->auth_id =
5036 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5037 }
5038
c80d545d
JC		 5039 return 0;
5040}
5041
24bdd9f4 5042static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5043 struct genl_info *info)
bd90fdcc
JB		 5044{
5045 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5046 struct net_device *dev = info->user_ptr[1];
29cbe68c 5047 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5048 struct mesh_config cfg;
5049 u32 mask;
5050 int err;
5051
29cbe68c
JB		 5052 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5053 return -EOPNOTSUPP;
5054
24bdd9f4 5055 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5056 return -EOPNOTSUPP;
5057
24bdd9f4 5058 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5059 if (err)
5060 return err;
5061
29cbe68c
JB		 5062 wdev_lock(wdev);
5063 if (!wdev->mesh_id_len)
5064 err = -ENOLINK;
5065
5066 if (!err)
e35e4d28 5067 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5068
5069 wdev_unlock(wdev);
5070
5071 return err;
93da9cc1 5072}
5073
f130347c
LR		 5074static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5075{
458f4f9e 5076 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5077 struct sk_buff *msg;
5078 void *hdr = NULL;
5079 struct nlattr *nl_reg_rules;
5080 unsigned int i;
f130347c
LR		 5081
5082 if (!cfg80211_regdomain)
5fe231e8 5083 return -EINVAL;
f130347c 5084
fd2120ca 5085 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5086 if (!msg)
5087 return -ENOBUFS;
f130347c 5088
15e47304 5089 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5090 NL80211_CMD_GET_REG);
5091 if (!hdr)
efe1cf0c 5092 goto put_failure;
f130347c 5093
57b5ce07
LR		 5094 if (reg_last_request_cell_base() &&
5095 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5096 NL80211_USER_REG_HINT_CELL_BASE))
5097 goto nla_put_failure;
5098
458f4f9e
JB		 5099 rcu_read_lock();
5100 regdom = rcu_dereference(cfg80211_regdomain);
5101
5102 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5103 (regdom->dfs_region &&
5104 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5105 goto nla_put_failure_rcu;
5106
f130347c
LR		 5107 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5108 if (!nl_reg_rules)
458f4f9e 5109 goto nla_put_failure_rcu;
f130347c 5110
458f4f9e 5111 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5112 struct nlattr *nl_reg_rule;
5113 const struct ieee80211_reg_rule *reg_rule;
5114 const struct ieee80211_freq_range *freq_range;
5115 const struct ieee80211_power_rule *power_rule;
97524820 5116 unsigned int max_bandwidth_khz;
f130347c 5117
458f4f9e 5118 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5119 freq_range = &reg_rule->freq_range;
5120 power_rule = &reg_rule->power_rule;
5121
5122 nl_reg_rule = nla_nest_start(msg, i);
5123 if (!nl_reg_rule)
458f4f9e 5124 goto nla_put_failure_rcu;
f130347c 5125
97524820
JD		 5126 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5127 if (!max_bandwidth_khz)
5128 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5129 reg_rule);
5130
9360ffd1
DM		 5131 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5132 reg_rule->flags) ||
5133 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5134 freq_range->start_freq_khz) ||
5135 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5136 freq_range->end_freq_khz) ||
5137 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5138 max_bandwidth_khz) ||
9360ffd1
DM		 5139 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5140 power_rule->max_antenna_gain) ||
5141 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5142 power_rule->max_eirp) ||
5143 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5144 reg_rule->dfs_cac_ms))
458f4f9e 5145 goto nla_put_failure_rcu;
f130347c
LR		 5146
5147 nla_nest_end(msg, nl_reg_rule);
5148 }
458f4f9e 5149 rcu_read_unlock();
f130347c
LR		 5150
5151 nla_nest_end(msg, nl_reg_rules);
5152
5153 genlmsg_end(msg, hdr);
5fe231e8 5154 return genlmsg_reply(msg, info);
f130347c 5155
458f4f9e
JB		 5156nla_put_failure_rcu:
5157 rcu_read_unlock();
f130347c
LR		 5158nla_put_failure:
5159 genlmsg_cancel(msg, hdr);
efe1cf0c 5160put_failure:
d080e275 5161 nlmsg_free(msg);
5fe231e8 5162 return -EMSGSIZE;
f130347c
LR		 5163}
5164
b2e1b302
LR		 5165static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5166{
5167 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5168 struct nlattr *nl_reg_rule;
5169 char *alpha2 = NULL;
5170 int rem_reg_rules = 0, r = 0;
5171 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5172 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5173 struct ieee80211_regdomain *rd = NULL;
5174
5175 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5176 return -EINVAL;
5177
5178 if (!info->attrs[NL80211_ATTR_REG_RULES])
5179 return -EINVAL;
5180
5181 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5182
8b60b078
LR		 5183 if (info->attrs[NL80211_ATTR_DFS_REGION])
5184 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5185
b2e1b302 5186 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5187 rem_reg_rules) {
b2e1b302
LR		 5188 num_rules++;
5189 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5190 return -EINVAL;
b2e1b302
LR		 5191 }
5192
e438768f
LR		 5193 if (!reg_is_valid_request(alpha2))
5194 return -EINVAL;
5195
b2e1b302 5196 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5197 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5198
5199 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5200 if (!rd)
5201 return -ENOMEM;
b2e1b302
LR		 5202
5203 rd->n_reg_rules = num_rules;
5204 rd->alpha2[0] = alpha2[0];
5205 rd->alpha2[1] = alpha2[1];
5206
8b60b078
LR		 5207 /*
5208 * Disable DFS master mode if the DFS region was
5209 * not supported or known on this kernel.
5210 */
5211 if (reg_supported_dfs_region(dfs_region))
5212 rd->dfs_region = dfs_region;
5213
b2e1b302 5214 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5215 rem_reg_rules) {
ae811e21
JB		 5216 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5217 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5218 reg_rule_policy);
5219 if (r)
5220 goto bad_reg;
b2e1b302
LR		 5221 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5222 if (r)
5223 goto bad_reg;
5224
5225 rule_idx++;
5226
d0e18f83
LR		 5227 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5228 r = -EINVAL;
b2e1b302 5229 goto bad_reg;
d0e18f83 5230 }
b2e1b302
LR		 5231 }
5232
b2e1b302 5233 r = set_regdom(rd);
6913b49a 5234 /* set_regdom took ownership */
1a919318 5235 rd = NULL;
b2e1b302 5236
d2372b31 5237 bad_reg:
b2e1b302 5238 kfree(rd);
d0e18f83 5239 return r;
b2e1b302
LR		 5240}
5241
83f5e2cf
JB		 5242static int validate_scan_freqs(struct nlattr *freqs)
5243{
5244 struct nlattr *attr1, *attr2;
5245 int n_channels = 0, tmp1, tmp2;
5246
5247 nla_for_each_nested(attr1, freqs, tmp1) {
5248 n_channels++;
5249 /*
5250 * Some hardware has a limited channel list for
5251 * scanning, and it is pretty much nonsensical
5252 * to scan for a channel twice, so disallow that
5253 * and don't require drivers to check that the
5254 * channel list they get isn't longer than what
5255 * they can scan, as long as they can scan all
5256 * the channels they registered at once.
5257 */
5258 nla_for_each_nested(attr2, freqs, tmp2)
5259 if (attr1 != attr2 &&
5260 nla_get_u32(attr1) == nla_get_u32(attr2))
5261 return 0;
5262 }
5263
5264 return n_channels;
5265}
5266
2a519311
JB		 5267static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5268{
4c476991 5269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5270 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5271 struct cfg80211_scan_request *request;
2a519311
JB		 5272 struct nlattr *attr;
5273 struct wiphy *wiphy;
83f5e2cf 5274 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5275 size_t ie_len;
2a519311 5276
f4a11bb0
JB		 5277 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5278 return -EINVAL;
5279
79c97e97 5280 wiphy = &rdev->wiphy;
2a519311 5281
4c476991
JB		 5282 if (!rdev->ops->scan)
5283 return -EOPNOTSUPP;
2a519311 5284
f9d15d16 5285 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5286 err = -EBUSY;
5287 goto unlock;
5288 }
2a519311
JB		 5289
5290 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5291 n_channels = validate_scan_freqs(
5292 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5293 if (!n_channels) {
5294 err = -EINVAL;
5295 goto unlock;
5296 }
2a519311 5297 } else {
bdfbec2d 5298 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5299 }
5300
5301 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5302 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5303 n_ssids++;
5304
f9f47529
JB		 5305 if (n_ssids > wiphy->max_scan_ssids) {
5306 err = -EINVAL;
5307 goto unlock;
5308 }
2a519311 5309
70692ad2
JM		 5310 if (info->attrs[NL80211_ATTR_IE])
5311 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5312 else
5313 ie_len = 0;
5314
f9f47529
JB		 5315 if (ie_len > wiphy->max_scan_ie_len) {
5316 err = -EINVAL;
5317 goto unlock;
5318 }
18a83659 5319
2a519311 5320 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5321 + sizeof(*request->ssids) * n_ssids
5322 + sizeof(*request->channels) * n_channels
70692ad2 5323 + ie_len, GFP_KERNEL);
f9f47529
JB		 5324 if (!request) {
5325 err = -ENOMEM;
5326 goto unlock;
5327 }
2a519311 5328
2a519311 5329 if (n_ssids)
5ba63533 5330 request->ssids = (void *)&request->channels[n_channels];
2a519311 5331 request->n_ssids = n_ssids;
70692ad2
JM		 5332 if (ie_len) {
5333 if (request->ssids)
5334 request->ie = (void *)(request->ssids + n_ssids);
5335 else
5336 request->ie = (void *)(request->channels + n_channels);
5337 }
2a519311 5338
584991dc 5339 i = 0;
2a519311
JB		 5340 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5341 /* user specified, bail out if channel not found */
2a519311 5342 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5343 struct ieee80211_channel *chan;
5344
5345 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5346
5347 if (!chan) {
2a519311
JB		 5348 err = -EINVAL;
5349 goto out_free;
5350 }
584991dc
JB		 5351
5352 /* ignore disabled channels */
5353 if (chan->flags & IEEE80211_CHAN_DISABLED)
5354 continue;
5355
5356 request->channels[i] = chan;
2a519311
JB		 5357 i++;
5358 }
5359 } else {
34850ab2
JB		 5360 enum ieee80211_band band;
5361
2a519311 5362 /* all channels */
2a519311
JB		 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++) {
584991dc
JB		 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;
2a519311
JB		 5376 i++;
5377 }
5378 }
5379 }
5380
584991dc
JB		 5381 if (!i) {
5382 err = -EINVAL;
5383 goto out_free;
5384 }
5385
5386 request->n_channels = i;
5387
2a519311
JB		 5388 i = 0;
5389 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5390 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5391 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5392 err = -EINVAL;
5393 goto out_free;
5394 }
57a27e1d 5395 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5396 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5397 i++;
5398 }
5399 }
5400
70692ad2
JM		 5401 if (info->attrs[NL80211_ATTR_IE]) {
5402 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5403 memcpy((void *)request->ie,
5404 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5405 request->ie_len);
5406 }
5407
34850ab2 5408 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5409 if (wiphy->bands[i])
5410 request->rates[i] =
5411 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5412
5413 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5414 nla_for_each_nested(attr,
5415 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5416 tmp) {
5417 enum ieee80211_band band = nla_type(attr);
5418
84404623 5419 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5420 err = -EINVAL;
5421 goto out_free;
5422 }
1b09cd82
FF		 5423
5424 if (!wiphy->bands[band])
5425 continue;
5426
34850ab2
JB		 5427 err = ieee80211_get_ratemask(wiphy->bands[band],
5428 nla_data(attr),
5429 nla_len(attr),
5430 &request->rates[band]);
5431 if (err)
5432 goto out_free;
5433 }
5434 }
5435
46856bbf 5436 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5437 request->flags = nla_get_u32(
5438 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5439 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5440 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5441 err = -EOPNOTSUPP;
5442 goto out_free;
5443 }
5444 }
ed473771 5445
e9f935e3
RM		 5446 request->no_cck =
5447 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5448
fd014284 5449 request->wdev = wdev;
79c97e97 5450 request->wiphy = &rdev->wiphy;
15d6030b 5451 request->scan_start = jiffies;
2a519311 5452
79c97e97 5453 rdev->scan_req = request;
e35e4d28 5454 err = rdev_scan(rdev, request);
2a519311 5455
463d0183 5456 if (!err) {
fd014284
JB		 5457 nl80211_send_scan_start(rdev, wdev);
5458 if (wdev->netdev)
5459 dev_hold(wdev->netdev);
4c476991 5460 } else {
2a519311 5461 out_free:
79c97e97 5462 rdev->scan_req = NULL;
2a519311
JB		 5463 kfree(request);
5464 }
3b85875a 5465
f9f47529 5466 unlock:
2a519311
JB		 5467 return err;
5468}
5469
807f8a8c
LC		 5470static int nl80211_start_sched_scan(struct sk_buff *skb,
5471 struct genl_info *info)
5472{
5473 struct cfg80211_sched_scan_request *request;
5474 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5475 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5476 struct nlattr *attr;
5477 struct wiphy *wiphy;
a1f1c21c 5478 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5479 u32 interval;
807f8a8c
LC		 5480 enum ieee80211_band band;
5481 size_t ie_len;
a1f1c21c 5482 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5483 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5484
5485 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5486 !rdev->ops->sched_scan_start)
5487 return -EOPNOTSUPP;
5488
5489 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5490 return -EINVAL;
5491
bbe6ad6d
LC		 5492 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5493 return -EINVAL;
5494
5495 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5496 if (interval == 0)
5497 return -EINVAL;
5498
807f8a8c
LC		 5499 wiphy = &rdev->wiphy;
5500
5501 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5502 n_channels = validate_scan_freqs(
5503 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5504 if (!n_channels)
5505 return -EINVAL;
5506 } else {
bdfbec2d 5507 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5508 }
5509
5510 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5511 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5512 tmp)
5513 n_ssids++;
5514
93b6aa69 5515 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5516 return -EINVAL;
5517
ea73cbce
JB		 5518 /*
5519 * First, count the number of 'real' matchsets. Due to an issue with
5520 * the old implementation, matchsets containing only the RSSI attribute
5521 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5522 * RSSI for all matchsets, rather than their own matchset for reporting
5523 * all APs with a strong RSSI. This is needed to be compatible with
5524 * older userspace that treated a matchset with only the RSSI as the
5525 * global RSSI for all other matchsets - if there are other matchsets.
5526 */
5527 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5528 nla_for_each_nested(attr,
5529 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5530 tmp) {
5531 struct nlattr *rssi;
5532
5533 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5534 nla_data(attr), nla_len(attr),
5535 nl80211_match_policy);
5536 if (err)
5537 return err;
5538 /* add other standalone attributes here */
5539 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5540 n_match_sets++;
5541 continue;
5542 }
5543 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5544 if (rssi)
5545 default_match_rssi = nla_get_s32(rssi);
5546 }
5547 }
5548
5549 /* However, if there's no other matchset, add the RSSI one */
5550 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5551 n_match_sets = 1;
a1f1c21c
LC		 5552
5553 if (n_match_sets > wiphy->max_match_sets)
5554 return -EINVAL;
5555
807f8a8c
LC		 5556 if (info->attrs[NL80211_ATTR_IE])
5557 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5558 else
5559 ie_len = 0;
5560
5a865bad 5561 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5562 return -EINVAL;
5563
c10841ca
LC		 5564 if (rdev->sched_scan_req) {
5565 err = -EINPROGRESS;
5566 goto out;
5567 }
5568
807f8a8c 5569 request = kzalloc(sizeof(*request)
a2cd43c5 5570 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5571 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5572 + sizeof(*request->channels) * n_channels
807f8a8c 5573 + ie_len, GFP_KERNEL);
c10841ca
LC		 5574 if (!request) {
5575 err = -ENOMEM;
5576 goto out;
5577 }
807f8a8c
LC		 5578
5579 if (n_ssids)
5580 request->ssids = (void *)&request->channels[n_channels];
5581 request->n_ssids = n_ssids;
5582 if (ie_len) {
5583 if (request->ssids)
5584 request->ie = (void *)(request->ssids + n_ssids);
5585 else
5586 request->ie = (void *)(request->channels + n_channels);
5587 }
5588
a1f1c21c
LC		 5589 if (n_match_sets) {
5590 if (request->ie)
5591 request->match_sets = (void *)(request->ie + ie_len);
5592 else if (request->ssids)
5593 request->match_sets =
5594 (void *)(request->ssids + n_ssids);
5595 else
5596 request->match_sets =
5597 (void *)(request->channels + n_channels);
5598 }
5599 request->n_match_sets = n_match_sets;
5600
807f8a8c
LC		 5601 i = 0;
5602 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5603 /* user specified, bail out if channel not found */
5604 nla_for_each_nested(attr,
5605 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5606 tmp) {
5607 struct ieee80211_channel *chan;
5608
5609 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5610
5611 if (!chan) {
5612 err = -EINVAL;
5613 goto out_free;
5614 }
5615
5616 /* ignore disabled channels */
5617 if (chan->flags & IEEE80211_CHAN_DISABLED)
5618 continue;
5619
5620 request->channels[i] = chan;
5621 i++;
5622 }
5623 } else {
5624 /* all channels */
5625 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5626 int j;
5627 if (!wiphy->bands[band])
5628 continue;
5629 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5630 struct ieee80211_channel *chan;
5631
5632 chan = &wiphy->bands[band]->channels[j];
5633
5634 if (chan->flags & IEEE80211_CHAN_DISABLED)
5635 continue;
5636
5637 request->channels[i] = chan;
5638 i++;
5639 }
5640 }
5641 }
5642
5643 if (!i) {
5644 err = -EINVAL;
5645 goto out_free;
5646 }
5647
5648 request->n_channels = i;
5649
5650 i = 0;
5651 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5652 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5653 tmp) {
57a27e1d 5654 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5655 err = -EINVAL;
5656 goto out_free;
5657 }
57a27e1d 5658 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5659 memcpy(request->ssids[i].ssid, nla_data(attr),
5660 nla_len(attr));
807f8a8c
LC		 5661 i++;
5662 }
5663 }
5664
a1f1c21c
LC		 5665 i = 0;
5666 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5667 nla_for_each_nested(attr,
5668 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5669 tmp) {
88e920b4 5670 struct nlattr *ssid, *rssi;
a1f1c21c 5671
ae811e21
JB		 5672 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5673 nla_data(attr), nla_len(attr),
5674 nl80211_match_policy);
5675 if (err)
5676 goto out_free;
4a4ab0d7 5677 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5678 if (ssid) {
ea73cbce
JB		 5679 if (WARN_ON(i >= n_match_sets)) {
5680 /* this indicates a programming error,
5681 * the loop above should have verified
5682 * things properly
5683 */
5684 err = -EINVAL;
5685 goto out_free;
5686 }
5687
a1f1c21c
LC		 5688 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5689 err = -EINVAL;
5690 goto out_free;
5691 }
5692 memcpy(request->match_sets[i].ssid.ssid,
5693 nla_data(ssid), nla_len(ssid));
5694 request->match_sets[i].ssid.ssid_len =
5695 nla_len(ssid);
ea73cbce
JB		 5696 /* special attribute - old implemenation w/a */
5697 request->match_sets[i].rssi_thold =
5698 default_match_rssi;
5699 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5700 if (rssi)
5701 request->match_sets[i].rssi_thold =
5702 nla_get_s32(rssi);
a1f1c21c
LC		 5703 }
5704 i++;
5705 }
ea73cbce
JB		 5706
5707 /* there was no other matchset, so the RSSI one is alone */
5708 if (i == 0)
5709 request->match_sets[0].rssi_thold = default_match_rssi;
5710
5711 request->min_rssi_thold = INT_MAX;
5712 for (i = 0; i < n_match_sets; i++)
5713 request->min_rssi_thold =
5714 min(request->match_sets[i].rssi_thold,
5715 request->min_rssi_thold);
5716 } else {
5717 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5718 }
5719
9900e484
JB		 5720 if (ie_len) {
5721 request->ie_len = ie_len;
807f8a8c
LC		 5722 memcpy((void *)request->ie,
5723 nla_data(info->attrs[NL80211_ATTR_IE]),
5724 request->ie_len);
5725 }
5726
46856bbf 5727 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5728 request->flags = nla_get_u32(
5729 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5730 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5731 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5732 err = -EOPNOTSUPP;
5733 goto out_free;
5734 }
5735 }
ed473771 5736
807f8a8c
LC		 5737 request->dev = dev;
5738 request->wiphy = &rdev->wiphy;
bbe6ad6d 5739 request->interval = interval;
15d6030b 5740 request->scan_start = jiffies;
807f8a8c 5741
e35e4d28 5742 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5743 if (!err) {
5744 rdev->sched_scan_req = request;
5745 nl80211_send_sched_scan(rdev, dev,
5746 NL80211_CMD_START_SCHED_SCAN);
5747 goto out;
5748 }
5749
5750out_free:
5751 kfree(request);
5752out:
5753 return err;
5754}
5755
5756static int nl80211_stop_sched_scan(struct sk_buff *skb,
5757 struct genl_info *info)
5758{
5759 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5760
5761 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5762 !rdev->ops->sched_scan_stop)
5763 return -EOPNOTSUPP;
5764
5fe231e8 5765 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5766}
5767
04f39047
SW		 5768static int nl80211_start_radar_detection(struct sk_buff *skb,
5769 struct genl_info *info)
5770{
5771 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5772 struct net_device *dev = info->user_ptr[1];
5773 struct wireless_dev *wdev = dev->ieee80211_ptr;
5774 struct cfg80211_chan_def chandef;
55f7435c 5775 enum nl80211_dfs_regions dfs_region;
31559f35 5776 unsigned int cac_time_ms;
04f39047
SW		 5777 int err;
5778
55f7435c
LR		 5779 dfs_region = reg_get_dfs_region(wdev->wiphy);
5780 if (dfs_region == NL80211_DFS_UNSET)
5781 return -EINVAL;
5782
04f39047
SW		 5783 err = nl80211_parse_chandef(rdev, info, &chandef);
5784 if (err)
5785 return err;
5786
ff311bc1
SW		 5787 if (netif_carrier_ok(dev))
5788 return -EBUSY;
5789
04f39047
SW		 5790 if (wdev->cac_started)
5791 return -EBUSY;
5792
2beb6dab
LC		 5793 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
5794 NL80211_IFTYPE_UNSPECIFIED);
04f39047
SW		 5795 if (err < 0)
5796 return err;
5797
5798 if (err == 0)
5799 return -EINVAL;
5800
fe7c3a1f 5801 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5802 return -EINVAL;
5803
5804 if (!rdev->ops->start_radar_detection)
5805 return -EOPNOTSUPP;
5806
31559f35
JD		 5807 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5808 if (WARN_ON(!cac_time_ms))
5809 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5810
5811 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5812 cac_time_ms);
04f39047 5813 if (!err) {
9e0e2961 5814 wdev->chandef = chandef;
04f39047
SW		 5815 wdev->cac_started = true;
5816 wdev->cac_start_time = jiffies;
31559f35 5817 wdev->cac_time_ms = cac_time_ms;
04f39047 5818 }
04f39047
SW		 5819 return err;
5820}
5821
16ef1fe2
SW		 5822static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5823{
5824 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5825 struct net_device *dev = info->user_ptr[1];
5826 struct wireless_dev *wdev = dev->ieee80211_ptr;
5827 struct cfg80211_csa_settings params;
5828 /* csa_attrs is defined static to avoid waste of stack size - this
5829 * function is called under RTNL lock, so this should not be a problem.
5830 */
5831 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5832 u8 radar_detect_width = 0;
5833 int err;
ee4bc9e7 5834 bool need_new_beacon = false;
16ef1fe2
SW		 5835
5836 if (!rdev->ops->channel_switch ||
5837 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5838 return -EOPNOTSUPP;
5839
ee4bc9e7
SW		 5840 switch (dev->ieee80211_ptr->iftype) {
5841 case NL80211_IFTYPE_AP:
5842 case NL80211_IFTYPE_P2P_GO:
5843 need_new_beacon = true;
5844
5845 /* useless if AP is not running */
5846 if (!wdev->beacon_interval)
1ff79dfa 5847 return -ENOTCONN;
ee4bc9e7
SW		 5848 break;
5849 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 5850 if (!wdev->ssid_len)
5851 return -ENOTCONN;
5852 break;
c6da674a 5853 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 5854 if (!wdev->mesh_id_len)
5855 return -ENOTCONN;
ee4bc9e7
SW		 5856 break;
5857 default:
16ef1fe2 5858 return -EOPNOTSUPP;
ee4bc9e7 5859 }
16ef1fe2
SW		 5860
5861 memset(&params, 0, sizeof(params));
5862
5863 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5864 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5865 return -EINVAL;
5866
5867 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5868 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5869 return -EINVAL;
5870
5871 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5872
ee4bc9e7
SW		 5873 if (!need_new_beacon)
5874 goto skip_beacons;
5875
16ef1fe2
SW		 5876 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5877 if (err)
5878 return err;
5879
5880 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5881 info->attrs[NL80211_ATTR_CSA_IES],
5882 nl80211_policy);
5883 if (err)
5884 return err;
5885
5886 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5887 if (err)
5888 return err;
5889
5890 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5891 return -EINVAL;
5892
5893 params.counter_offset_beacon =
5894 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5895 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5896 return -EINVAL;
5897
5898 /* sanity check - counters should be the same */
5899 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5900 params.count)
5901 return -EINVAL;
5902
5903 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5904 params.counter_offset_presp =
5905 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5906 if (params.counter_offset_presp >=
5907 params.beacon_csa.probe_resp_len)
5908 return -EINVAL;
5909
5910 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5911 params.count)
5912 return -EINVAL;
5913 }
5914
ee4bc9e7 5915skip_beacons:
16ef1fe2
SW		 5916 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5917 if (err)
5918 return err;
5919
174e0cd2
IP		 5920 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
5921 wdev->iftype))
16ef1fe2
SW		 5922 return -EINVAL;
5923
2beb6dab
LC		 5924 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5925 &params.chandef,
5926 wdev->iftype);
5927 if (err < 0)
5928 return err;
5929
5930 if (err > 0) {
5931 radar_detect_width = BIT(params.chandef.width);
5932 params.radar_required = true;
16ef1fe2
SW		 5933 }
5934
73de86a3
LC		 5935 /* TODO: I left this here for now. With channel switch, the
5936 * verification is a bit more complicated, because we only do
5937 * it later when the channel switch really happens.
5938 */
16ef1fe2
SW		 5939 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5940 params.chandef.chan,
5941 CHAN_MODE_SHARED,
5942 radar_detect_width);
5943 if (err)
5944 return err;
5945
5946 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5947 params.block_tx = true;
5948
c56589ed
SW		 5949 wdev_lock(wdev);
5950 err = rdev_channel_switch(rdev, dev, &params);
5951 wdev_unlock(wdev);
5952
5953 return err;
16ef1fe2
SW		 5954}
5955
9720bb3a
JB		 5956static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5957 u32 seq, int flags,
2a519311 5958 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5959 struct wireless_dev *wdev,
5960 struct cfg80211_internal_bss *intbss)
2a519311 5961{
48ab905d 5962 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5963 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5964 void *hdr;
5965 struct nlattr *bss;
8cef2c9d 5966 bool tsf = false;
48ab905d
JB		 5967
5968 ASSERT_WDEV_LOCK(wdev);
2a519311 5969
15e47304 5970 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5971 NL80211_CMD_NEW_SCAN_RESULTS);
5972 if (!hdr)
5973 return -1;
5974
9720bb3a
JB		 5975 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5976
97990a06
JB		 5977 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5978 goto nla_put_failure;
5979 if (wdev->netdev &&
9360ffd1
DM		 5980 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5981 goto nla_put_failure;
97990a06
JB		 5982 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5983 goto nla_put_failure;
2a519311
JB		 5984
5985 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5986 if (!bss)
5987 goto nla_put_failure;
9360ffd1 5988 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5989 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5990 goto nla_put_failure;
9caf0364
JB		 5991
5992 rcu_read_lock();
5993 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5994 if (ies) {
5995 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5996 goto fail_unlock_rcu;
5997 tsf = true;
5998 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5999 ies->len, ies->data))
6000 goto fail_unlock_rcu;
9caf0364
JB		 6001 }
6002 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 6003 if (ies) {
6004 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6005 goto fail_unlock_rcu;
6006 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6007 ies->len, ies->data))
6008 goto fail_unlock_rcu;
9caf0364
JB		 6009 }
6010 rcu_read_unlock();
6011
9360ffd1
DM		 6012 if (res->beacon_interval &&
6013 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6014 goto nla_put_failure;
6015 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6016 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6017 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6018 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6019 jiffies_to_msecs(jiffies - intbss->ts)))
6020 goto nla_put_failure;
2a519311 6021
77965c97 6022 switch (rdev->wiphy.signal_type) {
2a519311 6023 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6024 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6025 goto nla_put_failure;
2a519311
JB		 6026 break;
6027 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6028 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6029 goto nla_put_failure;
2a519311
JB		 6030 break;
6031 default:
6032 break;
6033 }
6034
48ab905d 6035 switch (wdev->iftype) {
074ac8df 6036 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6037 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6038 if (intbss == wdev->current_bss &&
6039 nla_put_u32(msg, NL80211_BSS_STATUS,
6040 NL80211_BSS_STATUS_ASSOCIATED))
6041 goto nla_put_failure;
48ab905d
JB		 6042 break;
6043 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6044 if (intbss == wdev->current_bss &&
6045 nla_put_u32(msg, NL80211_BSS_STATUS,
6046 NL80211_BSS_STATUS_IBSS_JOINED))
6047 goto nla_put_failure;
48ab905d
JB		 6048 break;
6049 default:
6050 break;
6051 }
6052
2a519311
JB		 6053 nla_nest_end(msg, bss);
6054
6055 return genlmsg_end(msg, hdr);
6056
8cef2c9d
JB		 6057 fail_unlock_rcu:
6058 rcu_read_unlock();
2a519311
JB		 6059 nla_put_failure:
6060 genlmsg_cancel(msg, hdr);
6061 return -EMSGSIZE;
6062}
6063
97990a06 6064static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6065{
48ab905d 6066 struct cfg80211_registered_device *rdev;
2a519311 6067 struct cfg80211_internal_bss *scan;
48ab905d 6068 struct wireless_dev *wdev;
97990a06 6069 int start = cb->args[2], idx = 0;
2a519311
JB		 6070 int err;
6071
97990a06 6072 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6073 if (err)
6074 return err;
2a519311 6075
48ab905d
JB		 6076 wdev_lock(wdev);
6077 spin_lock_bh(&rdev->bss_lock);
6078 cfg80211_bss_expire(rdev);
6079
9720bb3a
JB		 6080 cb->seq = rdev->bss_generation;
6081
48ab905d 6082 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6083 if (++idx <= start)
6084 continue;
9720bb3a 6085 if (nl80211_send_bss(skb, cb,
2a519311 6086 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6087 rdev, wdev, scan) < 0) {
2a519311 6088 idx--;
67748893 6089 break;
2a519311
JB		 6090 }
6091 }
6092
48ab905d
JB		 6093 spin_unlock_bh(&rdev->bss_lock);
6094 wdev_unlock(wdev);
2a519311 6095
97990a06
JB		 6096 cb->args[2] = idx;
6097 nl80211_finish_wdev_dump(rdev);
2a519311 6098
67748893 6099 return skb->len;
2a519311
JB		 6100}
6101
15e47304 6102static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6103 int flags, struct net_device *dev,
6104 struct survey_info *survey)
6105{
6106 void *hdr;
6107 struct nlattr *infoattr;
6108
15e47304 6109 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6110 NL80211_CMD_NEW_SURVEY_RESULTS);
6111 if (!hdr)
6112 return -ENOMEM;
6113
9360ffd1
DM		 6114 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6115 goto nla_put_failure;
61fa713c
HS		 6116
6117 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6118 if (!infoattr)
6119 goto nla_put_failure;
6120
9360ffd1
DM		 6121 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6122 survey->channel->center_freq))
6123 goto nla_put_failure;
6124
6125 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6126 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6127 goto nla_put_failure;
6128 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6129 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6130 goto nla_put_failure;
6131 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6132 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6133 survey->channel_time))
6134 goto nla_put_failure;
6135 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6136 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6137 survey->channel_time_busy))
6138 goto nla_put_failure;
6139 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6140 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6141 survey->channel_time_ext_busy))
6142 goto nla_put_failure;
6143 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6144 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6145 survey->channel_time_rx))
6146 goto nla_put_failure;
6147 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6148 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6149 survey->channel_time_tx))
6150 goto nla_put_failure;
61fa713c
HS		 6151
6152 nla_nest_end(msg, infoattr);
6153
6154 return genlmsg_end(msg, hdr);
6155
6156 nla_put_failure:
6157 genlmsg_cancel(msg, hdr);
6158 return -EMSGSIZE;
6159}
6160
6161static int nl80211_dump_survey(struct sk_buff *skb,
6162 struct netlink_callback *cb)
6163{
6164 struct survey_info survey;
1b8ec87a 6165 struct cfg80211_registered_device *rdev;
97990a06
JB		 6166 struct wireless_dev *wdev;
6167 int survey_idx = cb->args[2];
61fa713c
HS		 6168 int res;
6169
1b8ec87a 6170 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6171 if (res)
6172 return res;
61fa713c 6173
97990a06
JB		 6174 if (!wdev->netdev) {
6175 res = -EINVAL;
6176 goto out_err;
6177 }
6178
1b8ec87a 6179 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6180 res = -EOPNOTSUPP;
6181 goto out_err;
6182 }
6183
6184 while (1) {
180cdc79
LR		 6185 struct ieee80211_channel *chan;
6186
1b8ec87a 6187 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6188 if (res == -ENOENT)
6189 break;
6190 if (res)
6191 goto out_err;
6192
180cdc79
LR		 6193 /* Survey without a channel doesn't make sense */
6194 if (!survey.channel) {
6195 res = -EINVAL;
6196 goto out;
6197 }
6198
1b8ec87a 6199 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6200 survey.channel->center_freq);
6201 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6202 survey_idx++;
6203 continue;
6204 }
6205
61fa713c 6206 if (nl80211_send_survey(skb,
15e47304 6207 NETLINK_CB(cb->skb).portid,
61fa713c 6208 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6209 wdev->netdev, &survey) < 0)
61fa713c
HS		 6210 goto out;
6211 survey_idx++;
6212 }
6213
6214 out:
97990a06 6215 cb->args[2] = survey_idx;
61fa713c
HS		 6216 res = skb->len;
6217 out_err:
1b8ec87a 6218 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6219 return res;
6220}
6221
b23aa676
SO		 6222static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6223{
6224 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6225 NL80211_WPA_VERSION_2));
6226}
6227
636a5d36
JM		 6228static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6229{
4c476991
JB		 6230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6231 struct net_device *dev = info->user_ptr[1];
19957bb3 6232 struct ieee80211_channel *chan;
e39e5b5e
JM		 6233 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6234 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6235 enum nl80211_auth_type auth_type;
fffd0934 6236 struct key_parse key;
d5cdfacb 6237 bool local_state_change;
636a5d36 6238
f4a11bb0
JB		 6239 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6240 return -EINVAL;
6241
6242 if (!info->attrs[NL80211_ATTR_MAC])
6243 return -EINVAL;
6244
1778092e
JM		 6245 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6246 return -EINVAL;
6247
19957bb3
JB		 6248 if (!info->attrs[NL80211_ATTR_SSID])
6249 return -EINVAL;
6250
6251 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6252 return -EINVAL;
6253
fffd0934
JB		 6254 err = nl80211_parse_key(info, &key);
6255 if (err)
6256 return err;
6257
6258 if (key.idx >= 0) {
e31b8213
JB		 6259 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6260 return -EINVAL;
fffd0934
JB		 6261 if (!key.p.key || !key.p.key_len)
6262 return -EINVAL;
6263 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6264 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6265 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6266 key.p.key_len != WLAN_KEY_LEN_WEP104))
6267 return -EINVAL;
6268 if (key.idx > 4)
6269 return -EINVAL;
6270 } else {
6271 key.p.key_len = 0;
6272 key.p.key = NULL;
6273 }
6274
afea0b7a
JB		 6275 if (key.idx >= 0) {
6276 int i;
6277 bool ok = false;
6278 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6279 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6280 ok = true;
6281 break;
6282 }
6283 }
4c476991
JB		 6284 if (!ok)
6285 return -EINVAL;
afea0b7a
JB		 6286 }
6287
4c476991
JB		 6288 if (!rdev->ops->auth)
6289 return -EOPNOTSUPP;
636a5d36 6290
074ac8df 6291 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6292 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6293 return -EOPNOTSUPP;
eec60b03 6294
19957bb3 6295 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6296 chan = nl80211_get_valid_chan(&rdev->wiphy,
6297 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6298 if (!chan)
4c476991 6299 return -EINVAL;
636a5d36 6300
19957bb3
JB		 6301 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6302 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6303
6304 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6305 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6306 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6307 }
6308
19957bb3 6309 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6310 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6311 return -EINVAL;
636a5d36 6312
e39e5b5e
JM		 6313 if (auth_type == NL80211_AUTHTYPE_SAE &&
6314 !info->attrs[NL80211_ATTR_SAE_DATA])
6315 return -EINVAL;
6316
6317 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6318 if (auth_type != NL80211_AUTHTYPE_SAE)
6319 return -EINVAL;
6320 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6321 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6322 /* need to include at least Auth Transaction and Status Code */
6323 if (sae_data_len < 4)
6324 return -EINVAL;
6325 }
6326
d5cdfacb
JM		 6327 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6328
95de817b
JB		 6329 /*
6330 * Since we no longer track auth state, ignore
6331 * requests to only change local state.
6332 */
6333 if (local_state_change)
6334 return 0;
6335
91bf9b26
JB		 6336 wdev_lock(dev->ieee80211_ptr);
6337 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6338 ssid, ssid_len, ie, ie_len,
6339 key.p.key, key.p.key_len, key.idx,
6340 sae_data, sae_data_len);
6341 wdev_unlock(dev->ieee80211_ptr);
6342 return err;
636a5d36
JM		 6343}
6344
c0692b8f
JB		 6345static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6346 struct genl_info *info,
3dc27d25
JB		 6347 struct cfg80211_crypto_settings *settings,
6348 int cipher_limit)
b23aa676 6349{
c0b2bbd8
JB		 6350 memset(settings, 0, sizeof(*settings));
6351
b23aa676
SO		 6352 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6353
c0692b8f
JB		 6354 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6355 u16 proto;
6356 proto = nla_get_u16(
6357 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6358 settings->control_port_ethertype = cpu_to_be16(proto);
6359 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6360 proto != ETH_P_PAE)
6361 return -EINVAL;
6362 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6363 settings->control_port_no_encrypt = true;
6364 } else
6365 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6366
b23aa676
SO		 6367 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6368 void *data;
6369 int len, i;
6370
6371 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6372 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6373 settings->n_ciphers_pairwise = len / sizeof(u32);
6374
6375 if (len % sizeof(u32))
6376 return -EINVAL;
6377
3dc27d25 6378 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6379 return -EINVAL;
6380
6381 memcpy(settings->ciphers_pairwise, data, len);
6382
6383 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6384 if (!cfg80211_supported_cipher_suite(
6385 &rdev->wiphy,
b23aa676
SO		 6386 settings->ciphers_pairwise[i]))
6387 return -EINVAL;
6388 }
6389
6390 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6391 settings->cipher_group =
6392 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6393 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6394 settings->cipher_group))
b23aa676
SO		 6395 return -EINVAL;
6396 }
6397
6398 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6399 settings->wpa_versions =
6400 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6401 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6402 return -EINVAL;
6403 }
6404
6405 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6406 void *data;
6d30240e 6407 int len;
b23aa676
SO		 6408
6409 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6410 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6411 settings->n_akm_suites = len / sizeof(u32);
6412
6413 if (len % sizeof(u32))
6414 return -EINVAL;
6415
1b9ca027
JM		 6416 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6417 return -EINVAL;
6418
b23aa676 6419 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6420 }
6421
6422 return 0;
6423}
6424
636a5d36
JM		 6425static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6426{
4c476991
JB		 6427 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6428 struct net_device *dev = info->user_ptr[1];
f444de05 6429 struct ieee80211_channel *chan;
f62fab73
JB		 6430 struct cfg80211_assoc_request req = {};
6431 const u8 *bssid, *ssid;
6432 int err, ssid_len = 0;
636a5d36 6433
f4a11bb0
JB		 6434 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6435 return -EINVAL;
6436
6437 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6438 !info->attrs[NL80211_ATTR_SSID] ||
6439 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6440 return -EINVAL;
6441
4c476991
JB		 6442 if (!rdev->ops->assoc)
6443 return -EOPNOTSUPP;
636a5d36 6444
074ac8df 6445 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6446 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6447 return -EOPNOTSUPP;
eec60b03 6448
19957bb3 6449 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6450
664834de
JM		 6451 chan = nl80211_get_valid_chan(&rdev->wiphy,
6452 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6453 if (!chan)
4c476991 6454 return -EINVAL;
636a5d36 6455
19957bb3
JB		 6456 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6457 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6458
6459 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6460 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6461 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6462 }
6463
dc6382ce 6464 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6465 enum nl80211_mfp mfp =
dc6382ce 6466 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6467 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6468 req.use_mfp = true;
4c476991
JB		 6469 else if (mfp != NL80211_MFP_NO)
6470 return -EINVAL;
dc6382ce
JM		 6471 }
6472
3e5d7649 6473 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6474 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6475
7e7c8926 6476 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6477 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6478
6479 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6480 memcpy(&req.ht_capa_mask,
6481 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6482 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6483
6484 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6485 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6486 return -EINVAL;
f62fab73
JB		 6487 memcpy(&req.ht_capa,
6488 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6489 sizeof(req.ht_capa));
7e7c8926
BG		 6490 }
6491
ee2aca34 6492 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6493 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6494
6495 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6496 memcpy(&req.vht_capa_mask,
6497 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6498 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6499
6500 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6501 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6502 return -EINVAL;
f62fab73
JB		 6503 memcpy(&req.vht_capa,
6504 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6505 sizeof(req.vht_capa));
ee2aca34
JB		 6506 }
6507
f62fab73 6508 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6509 if (!err) {
6510 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6511 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6512 ssid, ssid_len, &req);
91bf9b26
JB		 6513 wdev_unlock(dev->ieee80211_ptr);
6514 }
636a5d36 6515
636a5d36
JM		 6516 return err;
6517}
6518
6519static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6520{
4c476991
JB		 6521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6522 struct net_device *dev = info->user_ptr[1];
19957bb3 6523 const u8 *ie = NULL, *bssid;
91bf9b26 6524 int ie_len = 0, err;
19957bb3 6525 u16 reason_code;
d5cdfacb 6526 bool local_state_change;
636a5d36 6527
f4a11bb0
JB		 6528 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6529 return -EINVAL;
6530
6531 if (!info->attrs[NL80211_ATTR_MAC])
6532 return -EINVAL;
6533
6534 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6535 return -EINVAL;
6536
4c476991
JB		 6537 if (!rdev->ops->deauth)
6538 return -EOPNOTSUPP;
636a5d36 6539
074ac8df 6540 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6541 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6542 return -EOPNOTSUPP;
eec60b03 6543
19957bb3 6544 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6545
19957bb3
JB		 6546 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6547 if (reason_code == 0) {
f4a11bb0 6548 /* Reason Code 0 is reserved */
4c476991 6549 return -EINVAL;
255e737e 6550 }
636a5d36
JM		 6551
6552 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6553 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6554 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6555 }
6556
d5cdfacb
JM		 6557 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6558
91bf9b26
JB		 6559 wdev_lock(dev->ieee80211_ptr);
6560 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6561 local_state_change);
6562 wdev_unlock(dev->ieee80211_ptr);
6563 return err;
636a5d36
JM		 6564}
6565
6566static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6567{
4c476991
JB		 6568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6569 struct net_device *dev = info->user_ptr[1];
19957bb3 6570 const u8 *ie = NULL, *bssid;
91bf9b26 6571 int ie_len = 0, err;
19957bb3 6572 u16 reason_code;
d5cdfacb 6573 bool local_state_change;
636a5d36 6574
f4a11bb0
JB		 6575 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6576 return -EINVAL;
6577
6578 if (!info->attrs[NL80211_ATTR_MAC])
6579 return -EINVAL;
6580
6581 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6582 return -EINVAL;
6583
4c476991
JB		 6584 if (!rdev->ops->disassoc)
6585 return -EOPNOTSUPP;
636a5d36 6586
074ac8df 6587 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6588 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6589 return -EOPNOTSUPP;
eec60b03 6590
19957bb3 6591 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6592
19957bb3
JB		 6593 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6594 if (reason_code == 0) {
f4a11bb0 6595 /* Reason Code 0 is reserved */
4c476991 6596 return -EINVAL;
255e737e 6597 }
636a5d36
JM		 6598
6599 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6600 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6601 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6602 }
6603
d5cdfacb
JM		 6604 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6605
91bf9b26
JB		 6606 wdev_lock(dev->ieee80211_ptr);
6607 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6608 local_state_change);
6609 wdev_unlock(dev->ieee80211_ptr);
6610 return err;
636a5d36
JM		 6611}
6612
dd5b4cc7
FF		 6613static bool
6614nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6615 int mcast_rate[IEEE80211_NUM_BANDS],
6616 int rateval)
6617{
6618 struct wiphy *wiphy = &rdev->wiphy;
6619 bool found = false;
6620 int band, i;
6621
6622 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6623 struct ieee80211_supported_band *sband;
6624
6625 sband = wiphy->bands[band];
6626 if (!sband)
6627 continue;
6628
6629 for (i = 0; i < sband->n_bitrates; i++) {
6630 if (sband->bitrates[i].bitrate == rateval) {
6631 mcast_rate[band] = i + 1;
6632 found = true;
6633 break;
6634 }
6635 }
6636 }
6637
6638 return found;
6639}
6640
04a773ad
JB		 6641static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6642{
4c476991
JB		 6643 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6644 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6645 struct cfg80211_ibss_params ibss;
6646 struct wiphy *wiphy;
fffd0934 6647 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6648 int err;
6649
8e30bc55
JB		 6650 memset(&ibss, 0, sizeof(ibss));
6651
04a773ad
JB		 6652 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6653 return -EINVAL;
6654
683b6d3b 6655 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6656 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6657 return -EINVAL;
6658
8e30bc55
JB		 6659 ibss.beacon_interval = 100;
6660
6661 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6662 ibss.beacon_interval =
6663 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6664 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6665 return -EINVAL;
6666 }
6667
4c476991
JB		 6668 if (!rdev->ops->join_ibss)
6669 return -EOPNOTSUPP;
04a773ad 6670
4c476991
JB		 6671 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6672 return -EOPNOTSUPP;
04a773ad 6673
79c97e97 6674 wiphy = &rdev->wiphy;
04a773ad 6675
39193498 6676 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6677 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6678
6679 if (!is_valid_ether_addr(ibss.bssid))
6680 return -EINVAL;
6681 }
04a773ad
JB		 6682 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6683 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6684
6685 if (info->attrs[NL80211_ATTR_IE]) {
6686 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6687 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6688 }
6689
683b6d3b
JB		 6690 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6691 if (err)
6692 return err;
04a773ad 6693
174e0cd2
IP		 6694 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6695 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6696 return -EINVAL;
6697
2f301ab2 6698 switch (ibss.chandef.width) {
bf372645
SW		 6699 case NL80211_CHAN_WIDTH_5:
6700 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6701 case NL80211_CHAN_WIDTH_20_NOHT:
6702 break;
6703 case NL80211_CHAN_WIDTH_20:
6704 case NL80211_CHAN_WIDTH_40:
6705 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6706 break;
6707 default:
c04d6150 6708 return -EINVAL;
2f301ab2 6709 }
db9c64cf 6710
04a773ad 6711 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6712 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6713
fbd2c8dc
TP		 6714 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6715 u8 *rates =
6716 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6717 int n_rates =
6718 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6719 struct ieee80211_supported_band *sband =
683b6d3b 6720 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6721
34850ab2
JB		 6722 err = ieee80211_get_ratemask(sband, rates, n_rates,
6723 &ibss.basic_rates);
6724 if (err)
6725 return err;
fbd2c8dc 6726 }
dd5b4cc7 6727
803768f5
SW		 6728 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6729 memcpy(&ibss.ht_capa_mask,
6730 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6731 sizeof(ibss.ht_capa_mask));
6732
6733 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6734 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6735 return -EINVAL;
6736 memcpy(&ibss.ht_capa,
6737 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6738 sizeof(ibss.ht_capa));
6739 }
6740
dd5b4cc7
FF		 6741 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6742 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6743 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6744 return -EINVAL;
fbd2c8dc 6745
4c476991 6746 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6747 bool no_ht = false;
6748
4c476991 6749 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6750 info->attrs[NL80211_ATTR_KEYS],
6751 &no_ht);
4c476991
JB		 6752 if (IS_ERR(connkeys))
6753 return PTR_ERR(connkeys);
de7044ee 6754
3d9d1d66
JB		 6755 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6756 no_ht) {
de7044ee
SM		 6757 kfree(connkeys);
6758 return -EINVAL;
6759 }
4c476991 6760 }
04a773ad 6761
267335d6
AQ		 6762 ibss.control_port =
6763 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6764
5336fa88
SW		 6765 ibss.userspace_handles_dfs =
6766 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6767
4c476991 6768 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6769 if (err)
6770 kfree(connkeys);
04a773ad
JB		 6771 return err;
6772}
6773
6774static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6775{
4c476991
JB		 6776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6777 struct net_device *dev = info->user_ptr[1];
04a773ad 6778
4c476991
JB		 6779 if (!rdev->ops->leave_ibss)
6780 return -EOPNOTSUPP;
04a773ad 6781
4c476991
JB		 6782 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6783 return -EOPNOTSUPP;
04a773ad 6784
4c476991 6785 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6786}
6787
f4e583c8
AQ		 6788static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6789{
6790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6791 struct net_device *dev = info->user_ptr[1];
6792 int mcast_rate[IEEE80211_NUM_BANDS];
6793 u32 nla_rate;
6794 int err;
6795
6796 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6797 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6798 return -EOPNOTSUPP;
6799
6800 if (!rdev->ops->set_mcast_rate)
6801 return -EOPNOTSUPP;
6802
6803 memset(mcast_rate, 0, sizeof(mcast_rate));
6804
6805 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6806 return -EINVAL;
6807
6808 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6809 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6810 return -EINVAL;
6811
6812 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6813
6814 return err;
6815}
6816
ad7e718c
JB		 6817static struct sk_buff *
6818__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6819 int approxlen, u32 portid, u32 seq,
6820 enum nl80211_commands cmd,
567ffc35
JB		 6821 enum nl80211_attrs attr,
6822 const struct nl80211_vendor_cmd_info *info,
6823 gfp_t gfp)
ad7e718c
JB		 6824{
6825 struct sk_buff *skb;
6826 void *hdr;
6827 struct nlattr *data;
6828
6829 skb = nlmsg_new(approxlen + 100, gfp);
6830 if (!skb)
6831 return NULL;
6832
6833 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6834 if (!hdr) {
6835 kfree_skb(skb);
6836 return NULL;
6837 }
6838
6839 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6840 goto nla_put_failure;
567ffc35
JB		 6841
6842 if (info) {
6843 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6844 info->vendor_id))
6845 goto nla_put_failure;
6846 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6847 info->subcmd))
6848 goto nla_put_failure;
6849 }
6850
ad7e718c
JB		 6851 data = nla_nest_start(skb, attr);
6852
6853 ((void **)skb->cb)[0] = rdev;
6854 ((void **)skb->cb)[1] = hdr;
6855 ((void **)skb->cb)[2] = data;
6856
6857 return skb;
6858
6859 nla_put_failure:
6860 kfree_skb(skb);
6861 return NULL;
6862}
f4e583c8 6863
e03ad6ea
JB		 6864struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6865 enum nl80211_commands cmd,
6866 enum nl80211_attrs attr,
6867 int vendor_event_idx,
6868 int approxlen, gfp_t gfp)
6869{
6870 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6871 const struct nl80211_vendor_cmd_info *info;
6872
6873 switch (cmd) {
6874 case NL80211_CMD_TESTMODE:
6875 if (WARN_ON(vendor_event_idx != -1))
6876 return NULL;
6877 info = NULL;
6878 break;
6879 case NL80211_CMD_VENDOR:
6880 if (WARN_ON(vendor_event_idx < 0 ||
6881 vendor_event_idx >= wiphy->n_vendor_events))
6882 return NULL;
6883 info = &wiphy->vendor_events[vendor_event_idx];
6884 break;
6885 default:
6886 WARN_ON(1);
6887 return NULL;
6888 }
6889
6890 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6891 cmd, attr, info, gfp);
6892}
6893EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6894
6895void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6896{
6897 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6898 void *hdr = ((void **)skb->cb)[1];
6899 struct nlattr *data = ((void **)skb->cb)[2];
6900 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6901
6902 nla_nest_end(skb, data);
6903 genlmsg_end(skb, hdr);
6904
6905 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6906 mcgrp = NL80211_MCGRP_VENDOR;
6907
6908 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6909 mcgrp, gfp);
6910}
6911EXPORT_SYMBOL(__cfg80211_send_event_skb);
6912
aff89a9b 6913#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6914static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6915{
4c476991 6916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6917 struct wireless_dev *wdev =
6918 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6919 int err;
6920
fc73f11f
DS		 6921 if (!rdev->ops->testmode_cmd)
6922 return -EOPNOTSUPP;
6923
6924 if (IS_ERR(wdev)) {
6925 err = PTR_ERR(wdev);
6926 if (err != -EINVAL)
6927 return err;
6928 wdev = NULL;
6929 } else if (wdev->wiphy != &rdev->wiphy) {
6930 return -EINVAL;
6931 }
6932
aff89a9b
JB		 6933 if (!info->attrs[NL80211_ATTR_TESTDATA])
6934 return -EINVAL;
6935
ad7e718c 6936 rdev->cur_cmd_info = info;
fc73f11f 6937 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 6938 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6939 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 6940 rdev->cur_cmd_info = NULL;
aff89a9b 6941
aff89a9b
JB		 6942 return err;
6943}
6944
71063f0e
WYG		 6945static int nl80211_testmode_dump(struct sk_buff *skb,
6946 struct netlink_callback *cb)
6947{
00918d33 6948 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6949 int err;
6950 long phy_idx;
6951 void *data = NULL;
6952 int data_len = 0;
6953
5fe231e8
JB		 6954 rtnl_lock();
6955
71063f0e
WYG		 6956 if (cb->args[0]) {
6957 /*
6958 * 0 is a valid index, but not valid for args[0],
6959 * so we need to offset by 1.
6960 */
6961 phy_idx = cb->args[0] - 1;
6962 } else {
6963 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6964 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6965 nl80211_policy);
6966 if (err)
5fe231e8 6967 goto out_err;
00918d33 6968
2bd7e35d
JB		 6969 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6970 nl80211_fam.attrbuf);
6971 if (IS_ERR(rdev)) {
5fe231e8
JB		 6972 err = PTR_ERR(rdev);
6973 goto out_err;
00918d33 6974 }
2bd7e35d
JB		 6975 phy_idx = rdev->wiphy_idx;
6976 rdev = NULL;
2bd7e35d 6977
71063f0e
WYG		 6978 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6979 cb->args[1] =
6980 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6981 }
6982
6983 if (cb->args[1]) {
6984 data = nla_data((void *)cb->args[1]);
6985 data_len = nla_len((void *)cb->args[1]);
6986 }
6987
00918d33
JB		 6988 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6989 if (!rdev) {
5fe231e8
JB		 6990 err = -ENOENT;
6991 goto out_err;
71063f0e 6992 }
71063f0e 6993
00918d33 6994 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6995 err = -EOPNOTSUPP;
6996 goto out_err;
6997 }
6998
6999 while (1) {
15e47304 7000 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7001 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7002 NL80211_CMD_TESTMODE);
7003 struct nlattr *tmdata;
7004
cb35fba3
DC		 7005 if (!hdr)
7006 break;
7007
9360ffd1 7008 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7009 genlmsg_cancel(skb, hdr);
7010 break;
7011 }
7012
7013 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7014 if (!tmdata) {
7015 genlmsg_cancel(skb, hdr);
7016 break;
7017 }
e35e4d28 7018 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7019 nla_nest_end(skb, tmdata);
7020
7021 if (err == -ENOBUFS || err == -ENOENT) {
7022 genlmsg_cancel(skb, hdr);
7023 break;
7024 } else if (err) {
7025 genlmsg_cancel(skb, hdr);
7026 goto out_err;
7027 }
7028
7029 genlmsg_end(skb, hdr);
7030 }
7031
7032 err = skb->len;
7033 /* see above */
7034 cb->args[0] = phy_idx + 1;
7035 out_err:
5fe231e8 7036 rtnl_unlock();
71063f0e
WYG		 7037 return err;
7038}
aff89a9b
JB		 7039#endif
7040
b23aa676
SO		 7041static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7042{
4c476991
JB		 7043 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7044 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7045 struct cfg80211_connect_params connect;
7046 struct wiphy *wiphy;
fffd0934 7047 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7048 int err;
7049
7050 memset(&connect, 0, sizeof(connect));
7051
7052 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7053 return -EINVAL;
7054
7055 if (!info->attrs[NL80211_ATTR_SSID] ||
7056 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7057 return -EINVAL;
7058
7059 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7060 connect.auth_type =
7061 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7062 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7063 NL80211_CMD_CONNECT))
b23aa676
SO		 7064 return -EINVAL;
7065 } else
7066 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7067
7068 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7069
c0692b8f 7070 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7071 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7072 if (err)
7073 return err;
b23aa676 7074
074ac8df 7075 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7076 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7077 return -EOPNOTSUPP;
b23aa676 7078
79c97e97 7079 wiphy = &rdev->wiphy;
b23aa676 7080
4486ea98
BS		 7081 connect.bg_scan_period = -1;
7082 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7083 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7084 connect.bg_scan_period =
7085 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7086 }
7087
b23aa676
SO		 7088 if (info->attrs[NL80211_ATTR_MAC])
7089 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7090 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7091 connect.bssid_hint =
7092 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7093 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7094 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7095
7096 if (info->attrs[NL80211_ATTR_IE]) {
7097 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7098 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7099 }
7100
cee00a95
JM		 7101 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7102 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7103 if (connect.mfp != NL80211_MFP_REQUIRED &&
7104 connect.mfp != NL80211_MFP_NO)
7105 return -EINVAL;
7106 } else {
7107 connect.mfp = NL80211_MFP_NO;
7108 }
7109
b23aa676 7110 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7111 connect.channel = nl80211_get_valid_chan(
7112 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7113 if (!connect.channel)
1df4a510
JM		 7114 return -EINVAL;
7115 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7116 connect.channel_hint = nl80211_get_valid_chan(
7117 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7118 if (!connect.channel_hint)
4c476991 7119 return -EINVAL;
b23aa676
SO		 7120 }
7121
fffd0934
JB		 7122 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7123 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7124 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7125 if (IS_ERR(connkeys))
7126 return PTR_ERR(connkeys);
fffd0934
JB		 7127 }
7128
7e7c8926
BG		 7129 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7130 connect.flags |= ASSOC_REQ_DISABLE_HT;
7131
7132 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7133 memcpy(&connect.ht_capa_mask,
7134 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7135 sizeof(connect.ht_capa_mask));
7136
7137 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7138 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7139 kfree(connkeys);
7e7c8926 7140 return -EINVAL;
b4e4f47e 7141 }
7e7c8926
BG		 7142 memcpy(&connect.ht_capa,
7143 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7144 sizeof(connect.ht_capa));
7145 }
7146
ee2aca34
JB		 7147 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7148 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7149
7150 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7151 memcpy(&connect.vht_capa_mask,
7152 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7153 sizeof(connect.vht_capa_mask));
7154
7155 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7156 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7157 kfree(connkeys);
7158 return -EINVAL;
7159 }
7160 memcpy(&connect.vht_capa,
7161 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7162 sizeof(connect.vht_capa));
7163 }
7164
83739b03
JB		 7165 wdev_lock(dev->ieee80211_ptr);
7166 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7167 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7168 if (err)
7169 kfree(connkeys);
b23aa676
SO		 7170 return err;
7171}
7172
7173static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7174{
4c476991
JB		 7175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7176 struct net_device *dev = info->user_ptr[1];
b23aa676 7177 u16 reason;
83739b03 7178 int ret;
b23aa676
SO		 7179
7180 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7181 reason = WLAN_REASON_DEAUTH_LEAVING;
7182 else
7183 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7184
7185 if (reason == 0)
7186 return -EINVAL;
7187
074ac8df 7188 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7189 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7190 return -EOPNOTSUPP;
b23aa676 7191
83739b03
JB		 7192 wdev_lock(dev->ieee80211_ptr);
7193 ret = cfg80211_disconnect(rdev, dev, reason, true);
7194 wdev_unlock(dev->ieee80211_ptr);
7195 return ret;
b23aa676
SO		 7196}
7197
463d0183
JB		 7198static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7199{
4c476991 7200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7201 struct net *net;
7202 int err;
7203 u32 pid;
7204
7205 if (!info->attrs[NL80211_ATTR_PID])
7206 return -EINVAL;
7207
7208 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7209
463d0183 7210 net = get_net_ns_by_pid(pid);
4c476991
JB		 7211 if (IS_ERR(net))
7212 return PTR_ERR(net);
463d0183
JB		 7213
7214 err = 0;
7215
7216 /* check if anything to do */
4c476991
JB		 7217 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7218 err = cfg80211_switch_netns(rdev, net);
463d0183 7219
463d0183 7220 put_net(net);
463d0183
JB		 7221 return err;
7222}
7223
67fbb16b
SO		 7224static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7225{
4c476991 7226 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7227 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7228 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7229 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7230 struct cfg80211_pmksa pmksa;
7231
7232 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7233
7234 if (!info->attrs[NL80211_ATTR_MAC])
7235 return -EINVAL;
7236
7237 if (!info->attrs[NL80211_ATTR_PMKID])
7238 return -EINVAL;
7239
67fbb16b
SO		 7240 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7241 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7242
074ac8df 7243 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7244 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7245 return -EOPNOTSUPP;
67fbb16b
SO		 7246
7247 switch (info->genlhdr->cmd) {
7248 case NL80211_CMD_SET_PMKSA:
7249 rdev_ops = rdev->ops->set_pmksa;
7250 break;
7251 case NL80211_CMD_DEL_PMKSA:
7252 rdev_ops = rdev->ops->del_pmksa;
7253 break;
7254 default:
7255 WARN_ON(1);
7256 break;
7257 }
7258
4c476991
JB		 7259 if (!rdev_ops)
7260 return -EOPNOTSUPP;
67fbb16b 7261
4c476991 7262 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7263}
7264
7265static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7266{
4c476991
JB		 7267 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7268 struct net_device *dev = info->user_ptr[1];
67fbb16b 7269
074ac8df 7270 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7271 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7272 return -EOPNOTSUPP;
67fbb16b 7273
4c476991
JB		 7274 if (!rdev->ops->flush_pmksa)
7275 return -EOPNOTSUPP;
67fbb16b 7276
e35e4d28 7277 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7278}
7279
109086ce
AN		 7280static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7281{
7282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7283 struct net_device *dev = info->user_ptr[1];
7284 u8 action_code, dialog_token;
df942e7b 7285 u32 peer_capability = 0;
109086ce
AN		 7286 u16 status_code;
7287 u8 *peer;
7288
7289 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7290 !rdev->ops->tdls_mgmt)
7291 return -EOPNOTSUPP;
7292
7293 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7294 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7295 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7296 !info->attrs[NL80211_ATTR_IE] ||
7297 !info->attrs[NL80211_ATTR_MAC])
7298 return -EINVAL;
7299
7300 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7301 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7302 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7303 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
df942e7b
SDU		 7304 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7305 peer_capability =
7306 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7307
e35e4d28 7308 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7309 dialog_token, status_code, peer_capability,
e35e4d28
HG		 7310 nla_data(info->attrs[NL80211_ATTR_IE]),
7311 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7312}
7313
7314static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7315{
7316 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7317 struct net_device *dev = info->user_ptr[1];
7318 enum nl80211_tdls_operation operation;
7319 u8 *peer;
7320
7321 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7322 !rdev->ops->tdls_oper)
7323 return -EOPNOTSUPP;
7324
7325 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7326 !info->attrs[NL80211_ATTR_MAC])
7327 return -EINVAL;
7328
7329 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7330 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7331
e35e4d28 7332 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7333}
7334
9588bbd5
JM		 7335static int nl80211_remain_on_channel(struct sk_buff *skb,
7336 struct genl_info *info)
7337{
4c476991 7338 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7339 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7340 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7341 struct sk_buff *msg;
7342 void *hdr;
7343 u64 cookie;
683b6d3b 7344 u32 duration;
9588bbd5
JM		 7345 int err;
7346
7347 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7348 !info->attrs[NL80211_ATTR_DURATION])
7349 return -EINVAL;
7350
7351 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7352
ebf348fc
JB		 7353 if (!rdev->ops->remain_on_channel ||
7354 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7355 return -EOPNOTSUPP;
7356
9588bbd5 7357 /*
ebf348fc
JB		 7358 * We should be on that channel for at least a minimum amount of
7359 * time (10ms) but no longer than the driver supports.
9588bbd5 7360 */
ebf348fc 7361 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7362 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7363 return -EINVAL;
7364
683b6d3b
JB		 7365 err = nl80211_parse_chandef(rdev, info, &chandef);
7366 if (err)
7367 return err;
9588bbd5
JM		 7368
7369 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7370 if (!msg)
7371 return -ENOMEM;
9588bbd5 7372
15e47304 7373 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7374 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7375 if (!hdr) {
7376 err = -ENOBUFS;
9588bbd5
JM		 7377 goto free_msg;
7378 }
7379
683b6d3b
JB		 7380 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7381 duration, &cookie);
9588bbd5
JM		 7382
7383 if (err)
7384 goto free_msg;
7385
9360ffd1
DM		 7386 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7387 goto nla_put_failure;
9588bbd5
JM		 7388
7389 genlmsg_end(msg, hdr);
4c476991
JB		 7390
7391 return genlmsg_reply(msg, info);
9588bbd5
JM		 7392
7393 nla_put_failure:
7394 err = -ENOBUFS;
7395 free_msg:
7396 nlmsg_free(msg);
9588bbd5
JM		 7397 return err;
7398}
7399
7400static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7401 struct genl_info *info)
7402{
4c476991 7403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7404 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7405 u64 cookie;
9588bbd5
JM		 7406
7407 if (!info->attrs[NL80211_ATTR_COOKIE])
7408 return -EINVAL;
7409
4c476991
JB		 7410 if (!rdev->ops->cancel_remain_on_channel)
7411 return -EOPNOTSUPP;
9588bbd5 7412
9588bbd5
JM		 7413 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7414
e35e4d28 7415 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7416}
7417
13ae75b1
JM		 7418static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7419 u8 *rates, u8 rates_len)
7420{
7421 u8 i;
7422 u32 mask = 0;
7423
7424 for (i = 0; i < rates_len; i++) {
7425 int rate = (rates[i] & 0x7f) * 5;
7426 int ridx;
7427 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7428 struct ieee80211_rate *srate =
7429 &sband->bitrates[ridx];
7430 if (rate == srate->bitrate) {
7431 mask |= 1 << ridx;
7432 break;
7433 }
7434 }
7435 if (ridx == sband->n_bitrates)
7436 return 0; /* rate not found */
7437 }
7438
7439 return mask;
7440}
7441
24db78c0
SW		 7442static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7443 u8 *rates, u8 rates_len,
7444 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7445{
7446 u8 i;
7447
7448 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7449
7450 for (i = 0; i < rates_len; i++) {
7451 int ridx, rbit;
7452
7453 ridx = rates[i] / 8;
7454 rbit = BIT(rates[i] % 8);
7455
7456 /* check validity */
910570b5 7457 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7458 return false;
7459
7460 /* check availability */
7461 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7462 mcs[ridx] |= rbit;
7463 else
7464 return false;
7465 }
7466
7467 return true;
7468}
7469
204e35a9
JD		 7470static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7471{
7472 u16 mcs_mask = 0;
7473
7474 switch (vht_mcs_map) {
7475 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7476 break;
7477 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7478 mcs_mask = 0x00FF;
7479 break;
7480 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7481 mcs_mask = 0x01FF;
7482 break;
7483 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7484 mcs_mask = 0x03FF;
7485 break;
7486 default:
7487 break;
7488 }
7489
7490 return mcs_mask;
7491}
7492
7493static void vht_build_mcs_mask(u16 vht_mcs_map,
7494 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7495{
7496 u8 nss;
7497
7498 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7499 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7500 vht_mcs_map >>= 2;
7501 }
7502}
7503
7504static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7505 struct nl80211_txrate_vht *txrate,
7506 u16 mcs[NL80211_VHT_NSS_MAX])
7507{
7508 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7509 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7510 u8 i;
7511
7512 if (!sband->vht_cap.vht_supported)
7513 return false;
7514
7515 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7516
7517 /* Build vht_mcs_mask from VHT capabilities */
7518 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7519
7520 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7521 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7522 mcs[i] = txrate->mcs[i];
7523 else
7524 return false;
7525 }
7526
7527 return true;
7528}
7529
b54452b0 7530static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7531 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7532 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7533 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7534 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7535 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7536 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7537};
7538
7539static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7540 struct genl_info *info)
7541{
7542 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7543 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7544 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7545 int rem, i;
7546 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7547 struct nlattr *tx_rates;
7548 struct ieee80211_supported_band *sband;
204e35a9 7549 u16 vht_tx_mcs_map;
13ae75b1 7550
4c476991
JB		 7551 if (!rdev->ops->set_bitrate_mask)
7552 return -EOPNOTSUPP;
13ae75b1
JM		 7553
7554 memset(&mask, 0, sizeof(mask));
7555 /* Default to all rates enabled */
7556 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7557 sband = rdev->wiphy.bands[i];
7869303b
JD		 7558
7559 if (!sband)
7560 continue;
7561
7562 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7563 memcpy(mask.control[i].ht_mcs,
7869303b 7564 sband->ht_cap.mcs.rx_mask,
d1e33e65 7565 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7566
7567 if (!sband->vht_cap.vht_supported)
7568 continue;
7569
7570 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7571 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7572 }
7573
b9243ab0
JD		 7574 /* if no rates are given set it back to the defaults */
7575 if (!info->attrs[NL80211_ATTR_TX_RATES])
7576 goto out;
7577
13ae75b1
JM		 7578 /*
7579 * The nested attribute uses enum nl80211_band as the index. This maps
7580 * directly to the enum ieee80211_band values used in cfg80211.
7581 */
24db78c0 7582 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7583 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7584 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7585 int err;
7586
4c476991
JB		 7587 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7588 return -EINVAL;
13ae75b1 7589 sband = rdev->wiphy.bands[band];
4c476991
JB		 7590 if (sband == NULL)
7591 return -EINVAL;
ae811e21
JB		 7592 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7593 nla_len(tx_rates), nl80211_txattr_policy);
7594 if (err)
7595 return err;
13ae75b1
JM		 7596 if (tb[NL80211_TXRATE_LEGACY]) {
7597 mask.control[band].legacy = rateset_to_mask(
7598 sband,
7599 nla_data(tb[NL80211_TXRATE_LEGACY]),
7600 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7601 if ((mask.control[band].legacy == 0) &&
7602 nla_len(tb[NL80211_TXRATE_LEGACY]))
7603 return -EINVAL;
24db78c0 7604 }
d1e33e65 7605 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7606 if (!ht_rateset_to_mask(
7607 sband,
d1e33e65
JD		 7608 nla_data(tb[NL80211_TXRATE_HT]),
7609 nla_len(tb[NL80211_TXRATE_HT]),
7610 mask.control[band].ht_mcs))
24db78c0
SW		 7611 return -EINVAL;
7612 }
204e35a9
JD		 7613 if (tb[NL80211_TXRATE_VHT]) {
7614 if (!vht_set_mcs_mask(
7615 sband,
7616 nla_data(tb[NL80211_TXRATE_VHT]),
7617 mask.control[band].vht_mcs))
7618 return -EINVAL;
7619 }
0b9323f6
JD		 7620 if (tb[NL80211_TXRATE_GI]) {
7621 mask.control[band].gi =
7622 nla_get_u8(tb[NL80211_TXRATE_GI]);
7623 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7624 return -EINVAL;
7625 }
24db78c0
SW		 7626
7627 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7628 /* don't allow empty legacy rates if HT or VHT
7629 * are not even supported.
7630 */
7631 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7632 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7633 return -EINVAL;
7634
7635 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7636 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7637 goto out;
7638
7639 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7640 if (mask.control[band].vht_mcs[i])
7641 goto out;
24db78c0
SW		 7642
7643 /* legacy and mcs rates may not be both empty */
204e35a9 7644 return -EINVAL;
13ae75b1
JM		 7645 }
7646 }
7647
b9243ab0 7648out:
e35e4d28 7649 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7650}
7651
2e161f78 7652static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7653{
4c476991 7654 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7655 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7656 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7657
7658 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7659 return -EINVAL;
7660
2e161f78
JB		 7661 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7662 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7663
71bbc994
JB		 7664 switch (wdev->iftype) {
7665 case NL80211_IFTYPE_STATION:
7666 case NL80211_IFTYPE_ADHOC:
7667 case NL80211_IFTYPE_P2P_CLIENT:
7668 case NL80211_IFTYPE_AP:
7669 case NL80211_IFTYPE_AP_VLAN:
7670 case NL80211_IFTYPE_MESH_POINT:
7671 case NL80211_IFTYPE_P2P_GO:
98104fde 7672 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7673 break;
7674 default:
4c476991 7675 return -EOPNOTSUPP;
71bbc994 7676 }
026331c4
JM		 7677
7678 /* not much point in registering if we can't reply */
4c476991
JB		 7679 if (!rdev->ops->mgmt_tx)
7680 return -EOPNOTSUPP;
026331c4 7681
15e47304 7682 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7683 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7684 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7685}
7686
2e161f78 7687static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7688{
4c476991 7689 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7690 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7691 struct cfg80211_chan_def chandef;
026331c4 7692 int err;
d64d373f 7693 void *hdr = NULL;
026331c4 7694 u64 cookie;
e247bd90 7695 struct sk_buff *msg = NULL;
b176e629
AO		 7696 struct cfg80211_mgmt_tx_params params = {
7697 .dont_wait_for_ack =
7698 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7699 };
026331c4 7700
683b6d3b 7701 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7702 return -EINVAL;
7703
4c476991
JB		 7704 if (!rdev->ops->mgmt_tx)
7705 return -EOPNOTSUPP;
026331c4 7706
71bbc994 7707 switch (wdev->iftype) {
ea141b75
AQ		 7708 case NL80211_IFTYPE_P2P_DEVICE:
7709 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7710 return -EINVAL;
71bbc994
JB		 7711 case NL80211_IFTYPE_STATION:
7712 case NL80211_IFTYPE_ADHOC:
7713 case NL80211_IFTYPE_P2P_CLIENT:
7714 case NL80211_IFTYPE_AP:
7715 case NL80211_IFTYPE_AP_VLAN:
7716 case NL80211_IFTYPE_MESH_POINT:
7717 case NL80211_IFTYPE_P2P_GO:
7718 break;
7719 default:
4c476991 7720 return -EOPNOTSUPP;
71bbc994 7721 }
026331c4 7722
f7ca38df 7723 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7724 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7725 return -EINVAL;
b176e629 7726 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7727
7728 /*
7729 * We should wait on the channel for at least a minimum amount
7730 * of time (10ms) but no longer than the driver supports.
7731 */
b176e629
AO		 7732 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7733 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7734 return -EINVAL;
7735
f7ca38df
JB		 7736 }
7737
b176e629 7738 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7739
b176e629 7740 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7741 return -EINVAL;
7742
b176e629 7743 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7744
ea141b75
AQ		 7745 /* get the channel if any has been specified, otherwise pass NULL to
7746 * the driver. The latter will use the current one
7747 */
7748 chandef.chan = NULL;
7749 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7750 err = nl80211_parse_chandef(rdev, info, &chandef);
7751 if (err)
7752 return err;
7753 }
7754
b176e629 7755 if (!chandef.chan && params.offchan)
ea141b75 7756 return -EINVAL;
026331c4 7757
b176e629 7758 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7759 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7760 if (!msg)
7761 return -ENOMEM;
026331c4 7762
15e47304 7763 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7764 NL80211_CMD_FRAME);
cb35fba3
DC		 7765 if (!hdr) {
7766 err = -ENOBUFS;
e247bd90
JB		 7767 goto free_msg;
7768 }
026331c4 7769 }
e247bd90 7770
b176e629
AO		 7771 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7772 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7773 params.chan = chandef.chan;
7774 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7775 if (err)
7776 goto free_msg;
7777
e247bd90 7778 if (msg) {
9360ffd1
DM		 7779 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7780 goto nla_put_failure;
026331c4 7781
e247bd90
JB		 7782 genlmsg_end(msg, hdr);
7783 return genlmsg_reply(msg, info);
7784 }
7785
7786 return 0;
026331c4
JM		 7787
7788 nla_put_failure:
7789 err = -ENOBUFS;
7790 free_msg:
7791 nlmsg_free(msg);
026331c4
JM		 7792 return err;
7793}
7794
f7ca38df
JB		 7795static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7796{
7797 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7798 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7799 u64 cookie;
7800
7801 if (!info->attrs[NL80211_ATTR_COOKIE])
7802 return -EINVAL;
7803
7804 if (!rdev->ops->mgmt_tx_cancel_wait)
7805 return -EOPNOTSUPP;
7806
71bbc994
JB		 7807 switch (wdev->iftype) {
7808 case NL80211_IFTYPE_STATION:
7809 case NL80211_IFTYPE_ADHOC:
7810 case NL80211_IFTYPE_P2P_CLIENT:
7811 case NL80211_IFTYPE_AP:
7812 case NL80211_IFTYPE_AP_VLAN:
7813 case NL80211_IFTYPE_P2P_GO:
98104fde 7814 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7815 break;
7816 default:
f7ca38df 7817 return -EOPNOTSUPP;
71bbc994 7818 }
f7ca38df
JB		 7819
7820 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7821
e35e4d28 7822 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7823}
7824
ffb9eb3d
KV		 7825static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7826{
4c476991 7827 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7828 struct wireless_dev *wdev;
4c476991 7829 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7830 u8 ps_state;
7831 bool state;
7832 int err;
7833
4c476991
JB		 7834 if (!info->attrs[NL80211_ATTR_PS_STATE])
7835 return -EINVAL;
ffb9eb3d
KV		 7836
7837 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7838
4c476991
JB		 7839 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7840 return -EINVAL;
ffb9eb3d
KV		 7841
7842 wdev = dev->ieee80211_ptr;
7843
4c476991
JB		 7844 if (!rdev->ops->set_power_mgmt)
7845 return -EOPNOTSUPP;
ffb9eb3d
KV		 7846
7847 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7848
7849 if (state == wdev->ps)
4c476991 7850 return 0;
ffb9eb3d 7851
e35e4d28 7852 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7853 if (!err)
7854 wdev->ps = state;
ffb9eb3d
KV		 7855 return err;
7856}
7857
7858static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7859{
4c476991 7860 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7861 enum nl80211_ps_state ps_state;
7862 struct wireless_dev *wdev;
4c476991 7863 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7864 struct sk_buff *msg;
7865 void *hdr;
7866 int err;
7867
ffb9eb3d
KV		 7868 wdev = dev->ieee80211_ptr;
7869
4c476991
JB		 7870 if (!rdev->ops->set_power_mgmt)
7871 return -EOPNOTSUPP;
ffb9eb3d
KV		 7872
7873 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7874 if (!msg)
7875 return -ENOMEM;
ffb9eb3d 7876
15e47304 7877 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7878 NL80211_CMD_GET_POWER_SAVE);
7879 if (!hdr) {
4c476991 7880 err = -ENOBUFS;
ffb9eb3d
KV		 7881 goto free_msg;
7882 }
7883
7884 if (wdev->ps)
7885 ps_state = NL80211_PS_ENABLED;
7886 else
7887 ps_state = NL80211_PS_DISABLED;
7888
9360ffd1
DM		 7889 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7890 goto nla_put_failure;
ffb9eb3d
KV		 7891
7892 genlmsg_end(msg, hdr);
4c476991 7893 return genlmsg_reply(msg, info);
ffb9eb3d 7894
4c476991 7895 nla_put_failure:
ffb9eb3d 7896 err = -ENOBUFS;
4c476991 7897 free_msg:
ffb9eb3d 7898 nlmsg_free(msg);
ffb9eb3d
KV		 7899 return err;
7900}
7901
94e860f1
JB		 7902static const struct nla_policy
7903nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 7904 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7905 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7906 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7907 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7908 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7909 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7910};
7911
84f10708 7912static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7913 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7914{
7915 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 7916 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7917 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 7918
d9d8b019 7919 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7920 return -EINVAL;
7921
84f10708
TP		 7922 if (!rdev->ops->set_cqm_txe_config)
7923 return -EOPNOTSUPP;
7924
7925 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7926 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7927 return -EOPNOTSUPP;
7928
e35e4d28 7929 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7930}
7931
d6dc1a38
JO		 7932static int nl80211_set_cqm_rssi(struct genl_info *info,
7933 s32 threshold, u32 hysteresis)
7934{
4c476991 7935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 7936 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7937 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 7938
7939 if (threshold > 0)
7940 return -EINVAL;
7941
1da5fcc8
JB		 7942 /* disabling - hysteresis should also be zero then */
7943 if (threshold == 0)
7944 hysteresis = 0;
d6dc1a38 7945
4c476991
JB		 7946 if (!rdev->ops->set_cqm_rssi_config)
7947 return -EOPNOTSUPP;
d6dc1a38 7948
074ac8df 7949 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7950 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7951 return -EOPNOTSUPP;
d6dc1a38 7952
e35e4d28 7953 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7954}
7955
7956static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7957{
7958 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7959 struct nlattr *cqm;
7960 int err;
7961
7962 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 7963 if (!cqm)
7964 return -EINVAL;
d6dc1a38
JO		 7965
7966 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7967 nl80211_attr_cqm_policy);
7968 if (err)
1da5fcc8 7969 return err;
d6dc1a38
JO		 7970
7971 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7972 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 7973 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7974 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 7975
1da5fcc8
JB		 7976 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
7977 }
7978
7979 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7980 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7981 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7982 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7983 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7984 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7985
7986 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
7987 }
7988
7989 return -EINVAL;
d6dc1a38
JO		 7990}
7991
29cbe68c
JB		 7992static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7993{
7994 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7995 struct net_device *dev = info->user_ptr[1];
7996 struct mesh_config cfg;
c80d545d 7997 struct mesh_setup setup;
29cbe68c
JB		 7998 int err;
7999
8000 /* start with default */
8001 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8002 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8003
24bdd9f4 8004 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8005 /* and parse parameters if given */
24bdd9f4 8006 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8007 if (err)
8008 return err;
8009 }
8010
8011 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8012 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8013 return -EINVAL;
8014
c80d545d
JC		 8015 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8016 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8017
4bb62344
CYY		 8018 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8019 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8020 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8021 return -EINVAL;
8022
9bdbf04d
MP		 8023 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8024 setup.beacon_interval =
8025 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8026 if (setup.beacon_interval < 10 ||
8027 setup.beacon_interval > 10000)
8028 return -EINVAL;
8029 }
8030
8031 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8032 setup.dtim_period =
8033 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8034 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8035 return -EINVAL;
8036 }
8037
c80d545d
JC		 8038 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8039 /* parse additional setup parameters if given */
8040 err = nl80211_parse_mesh_setup(info, &setup);
8041 if (err)
8042 return err;
8043 }
8044
d37bb18a
TP		 8045 if (setup.user_mpm)
8046 cfg.auto_open_plinks = false;
8047
cc1d2806 8048 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8049 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8050 if (err)
8051 return err;
cc1d2806
JB		 8052 } else {
8053 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8054 setup.chandef.chan = NULL;
cc1d2806
JB		 8055 }
8056
ffb3cf30
AN		 8057 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8058 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8059 int n_rates =
8060 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8061 struct ieee80211_supported_band *sband;
8062
8063 if (!setup.chandef.chan)
8064 return -EINVAL;
8065
8066 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8067
8068 err = ieee80211_get_ratemask(sband, rates, n_rates,
8069 &setup.basic_rates);
8070 if (err)
8071 return err;
8072 }
8073
c80d545d 8074 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8075}
8076
8077static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8078{
8079 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8080 struct net_device *dev = info->user_ptr[1];
8081
8082 return cfg80211_leave_mesh(rdev, dev);
8083}
8084
dfb89c56 8085#ifdef CONFIG_PM
bb92d199
AK		 8086static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8087 struct cfg80211_registered_device *rdev)
8088{
6abb9cb9 8089 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8090 struct nlattr *nl_pats, *nl_pat;
8091 int i, pat_len;
8092
6abb9cb9 8093 if (!wowlan->n_patterns)
bb92d199
AK		 8094 return 0;
8095
8096 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8097 if (!nl_pats)
8098 return -ENOBUFS;
8099
6abb9cb9 8100 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8101 nl_pat = nla_nest_start(msg, i + 1);
8102 if (!nl_pat)
8103 return -ENOBUFS;
6abb9cb9 8104 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8105 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8106 wowlan->patterns[i].mask) ||
50ac6607
AK		 8107 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8108 wowlan->patterns[i].pattern) ||
8109 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8110 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8111 return -ENOBUFS;
8112 nla_nest_end(msg, nl_pat);
8113 }
8114 nla_nest_end(msg, nl_pats);
8115
8116 return 0;
8117}
8118
2a0e047e
JB		 8119static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8120 struct cfg80211_wowlan_tcp *tcp)
8121{
8122 struct nlattr *nl_tcp;
8123
8124 if (!tcp)
8125 return 0;
8126
8127 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8128 if (!nl_tcp)
8129 return -ENOBUFS;
8130
8131 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8132 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8133 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8134 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8135 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8136 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8137 tcp->payload_len, tcp->payload) ||
8138 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8139 tcp->data_interval) ||
8140 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8141 tcp->wake_len, tcp->wake_data) ||
8142 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8143 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8144 return -ENOBUFS;
8145
8146 if (tcp->payload_seq.len &&
8147 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8148 sizeof(tcp->payload_seq), &tcp->payload_seq))
8149 return -ENOBUFS;
8150
8151 if (tcp->payload_tok.len &&
8152 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8153 sizeof(tcp->payload_tok) + tcp->tokens_size,
8154 &tcp->payload_tok))
8155 return -ENOBUFS;
8156
e248ad30
JB		 8157 nla_nest_end(msg, nl_tcp);
8158
2a0e047e
JB		 8159 return 0;
8160}
8161
ff1b6e69
JB		 8162static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8163{
8164 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8165 struct sk_buff *msg;
8166 void *hdr;
2a0e047e 8167 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8168
964dc9e2 8169 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8170 return -EOPNOTSUPP;
8171
6abb9cb9 8172 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8173 /* adjust size to have room for all the data */
6abb9cb9
JB		 8174 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8175 rdev->wiphy.wowlan_config->tcp->payload_len +
8176 rdev->wiphy.wowlan_config->tcp->wake_len +
8177 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8178 }
8179
8180 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8181 if (!msg)
8182 return -ENOMEM;
8183
15e47304 8184 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8185 NL80211_CMD_GET_WOWLAN);
8186 if (!hdr)
8187 goto nla_put_failure;
8188
6abb9cb9 8189 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8190 struct nlattr *nl_wowlan;
8191
8192 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8193 if (!nl_wowlan)
8194 goto nla_put_failure;
8195
6abb9cb9 8196 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8197 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8198 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8199 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8200 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8201 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8202 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8203 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8204 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8205 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8206 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8207 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8208 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8209 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8210 goto nla_put_failure;
2a0e047e 8211
bb92d199
AK		 8212 if (nl80211_send_wowlan_patterns(msg, rdev))
8213 goto nla_put_failure;
2a0e047e 8214
6abb9cb9
JB		 8215 if (nl80211_send_wowlan_tcp(msg,
8216 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8217 goto nla_put_failure;
8218
ff1b6e69
JB		 8219 nla_nest_end(msg, nl_wowlan);
8220 }
8221
8222 genlmsg_end(msg, hdr);
8223 return genlmsg_reply(msg, info);
8224
8225nla_put_failure:
8226 nlmsg_free(msg);
8227 return -ENOBUFS;
8228}
8229
2a0e047e
JB		 8230static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8231 struct nlattr *attr,
8232 struct cfg80211_wowlan *trig)
8233{
8234 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8235 struct cfg80211_wowlan_tcp *cfg;
8236 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8237 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8238 u32 size;
8239 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8240 int err, port;
8241
964dc9e2 8242 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8243 return -EINVAL;
8244
8245 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8246 nla_data(attr), nla_len(attr),
8247 nl80211_wowlan_tcp_policy);
8248 if (err)
8249 return err;
8250
8251 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8252 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8253 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8254 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8255 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8256 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8257 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8258 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8259 return -EINVAL;
8260
8261 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8262 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8263 return -EINVAL;
8264
8265 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8266 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8267 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8268 return -EINVAL;
8269
8270 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8271 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8272 return -EINVAL;
8273
8274 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8275 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8276 return -EINVAL;
8277
8278 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8279 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8280
8281 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8282 tokens_size = tokln - sizeof(*tok);
8283
8284 if (!tok->len || tokens_size % tok->len)
8285 return -EINVAL;
964dc9e2 8286 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8287 return -EINVAL;
964dc9e2 8288 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8289 return -EINVAL;
964dc9e2 8290 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8291 return -EINVAL;
964dc9e2 8292 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8293 return -EINVAL;
8294 if (tok->offset + tok->len > data_size)
8295 return -EINVAL;
8296 }
8297
8298 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8299 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8300 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8301 return -EINVAL;
8302 if (seq->len == 0 || seq->len > 4)
8303 return -EINVAL;
8304 if (seq->len + seq->offset > data_size)
8305 return -EINVAL;
8306 }
8307
8308 size = sizeof(*cfg);
8309 size += data_size;
8310 size += wake_size + wake_mask_size;
8311 size += tokens_size;
8312
8313 cfg = kzalloc(size, GFP_KERNEL);
8314 if (!cfg)
8315 return -ENOMEM;
8316 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8317 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8318 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8319 ETH_ALEN);
8320 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8321 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8322 else
8323 port = 0;
8324#ifdef CONFIG_INET
8325 /* allocate a socket and port for it and use it */
8326 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8327 IPPROTO_TCP, &cfg->sock, 1);
8328 if (err) {
8329 kfree(cfg);
8330 return err;
8331 }
8332 if (inet_csk_get_port(cfg->sock->sk, port)) {
8333 sock_release(cfg->sock);
8334 kfree(cfg);
8335 return -EADDRINUSE;
8336 }
8337 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8338#else
8339 if (!port) {
8340 kfree(cfg);
8341 return -EINVAL;
8342 }
8343 cfg->src_port = port;
8344#endif
8345
8346 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8347 cfg->payload_len = data_size;
8348 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8349 memcpy((void *)cfg->payload,
8350 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8351 data_size);
8352 if (seq)
8353 cfg->payload_seq = *seq;
8354 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8355 cfg->wake_len = wake_size;
8356 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8357 memcpy((void *)cfg->wake_data,
8358 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8359 wake_size);
8360 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8361 data_size + wake_size;
8362 memcpy((void *)cfg->wake_mask,
8363 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8364 wake_mask_size);
8365 if (tok) {
8366 cfg->tokens_size = tokens_size;
8367 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8368 }
8369
8370 trig->tcp = cfg;
8371
8372 return 0;
8373}
8374
ff1b6e69
JB		 8375static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8376{
8377 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8378 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8379 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8380 struct cfg80211_wowlan *ntrig;
964dc9e2 8381 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8382 int err, i;
6abb9cb9 8383 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8384
964dc9e2 8385 if (!wowlan)
ff1b6e69
JB		 8386 return -EOPNOTSUPP;
8387
ae33bd81
JB		 8388 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8389 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8390 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8391 goto set_wakeup;
8392 }
ff1b6e69
JB		 8393
8394 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8395 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8396 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8397 nl80211_wowlan_policy);
8398 if (err)
8399 return err;
8400
8401 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8402 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8403 return -EINVAL;
8404 new_triggers.any = true;
8405 }
8406
8407 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8408 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8409 return -EINVAL;
8410 new_triggers.disconnect = true;
8411 }
8412
8413 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8414 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8415 return -EINVAL;
8416 new_triggers.magic_pkt = true;
8417 }
8418
77dbbb13
JB		 8419 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8420 return -EINVAL;
8421
8422 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8423 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8424 return -EINVAL;
8425 new_triggers.gtk_rekey_failure = true;
8426 }
8427
8428 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8429 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8430 return -EINVAL;
8431 new_triggers.eap_identity_req = true;
8432 }
8433
8434 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8435 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8436 return -EINVAL;
8437 new_triggers.four_way_handshake = true;
8438 }
8439
8440 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8441 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8442 return -EINVAL;
8443 new_triggers.rfkill_release = true;
8444 }
8445
ff1b6e69
JB		 8446 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8447 struct nlattr *pat;
8448 int n_patterns = 0;
bb92d199 8449 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8450 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8451
8452 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8453 rem)
8454 n_patterns++;
8455 if (n_patterns > wowlan->n_patterns)
8456 return -EINVAL;
8457
8458 new_triggers.patterns = kcalloc(n_patterns,
8459 sizeof(new_triggers.patterns[0]),
8460 GFP_KERNEL);
8461 if (!new_triggers.patterns)
8462 return -ENOMEM;
8463
8464 new_triggers.n_patterns = n_patterns;
8465 i = 0;
8466
8467 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8468 rem) {
50ac6607
AK		 8469 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8470 nla_len(pat), NULL);
ff1b6e69 8471 err = -EINVAL;
50ac6607
AK		 8472 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8473 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8474 goto error;
50ac6607 8475 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8476 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8477 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8478 goto error;
8479 if (pat_len > wowlan->pattern_max_len ||
8480 pat_len < wowlan->pattern_min_len)
8481 goto error;
8482
50ac6607 8483 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8484 pkt_offset = 0;
8485 else
8486 pkt_offset = nla_get_u32(
50ac6607 8487 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8488 if (pkt_offset > wowlan->max_pkt_offset)
8489 goto error;
8490 new_triggers.patterns[i].pkt_offset = pkt_offset;
8491
ff1b6e69
JB		 8492 new_triggers.patterns[i].mask =
8493 kmalloc(mask_len + pat_len, GFP_KERNEL);
8494 if (!new_triggers.patterns[i].mask) {
8495 err = -ENOMEM;
8496 goto error;
8497 }
8498 new_triggers.patterns[i].pattern =
8499 new_triggers.patterns[i].mask + mask_len;
8500 memcpy(new_triggers.patterns[i].mask,
50ac6607 8501 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8502 mask_len);
8503 new_triggers.patterns[i].pattern_len = pat_len;
8504 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8505 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8506 pat_len);
8507 i++;
8508 }
8509 }
8510
2a0e047e
JB		 8511 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8512 err = nl80211_parse_wowlan_tcp(
8513 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8514 &new_triggers);
8515 if (err)
8516 goto error;
8517 }
8518
ae33bd81
JB		 8519 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8520 if (!ntrig) {
8521 err = -ENOMEM;
8522 goto error;
ff1b6e69 8523 }
ae33bd81 8524 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8525 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8526
ae33bd81 8527 set_wakeup:
6abb9cb9
JB		 8528 if (rdev->ops->set_wakeup &&
8529 prev_enabled != !!rdev->wiphy.wowlan_config)
8530 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8531
ff1b6e69
JB		 8532 return 0;
8533 error:
8534 for (i = 0; i < new_triggers.n_patterns; i++)
8535 kfree(new_triggers.patterns[i].mask);
8536 kfree(new_triggers.patterns);
2a0e047e
JB		 8537 if (new_triggers.tcp && new_triggers.tcp->sock)
8538 sock_release(new_triggers.tcp->sock);
8539 kfree(new_triggers.tcp);
ff1b6e69
JB		 8540 return err;
8541}
dfb89c56 8542#endif
ff1b6e69 8543
be29b99a
AK		 8544static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8545 struct cfg80211_registered_device *rdev)
8546{
8547 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8548 int i, j, pat_len;
8549 struct cfg80211_coalesce_rules *rule;
8550
8551 if (!rdev->coalesce->n_rules)
8552 return 0;
8553
8554 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8555 if (!nl_rules)
8556 return -ENOBUFS;
8557
8558 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8559 nl_rule = nla_nest_start(msg, i + 1);
8560 if (!nl_rule)
8561 return -ENOBUFS;
8562
8563 rule = &rdev->coalesce->rules[i];
8564 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8565 rule->delay))
8566 return -ENOBUFS;
8567
8568 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8569 rule->condition))
8570 return -ENOBUFS;
8571
8572 nl_pats = nla_nest_start(msg,
8573 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8574 if (!nl_pats)
8575 return -ENOBUFS;
8576
8577 for (j = 0; j < rule->n_patterns; j++) {
8578 nl_pat = nla_nest_start(msg, j + 1);
8579 if (!nl_pat)
8580 return -ENOBUFS;
8581 pat_len = rule->patterns[j].pattern_len;
8582 if (nla_put(msg, NL80211_PKTPAT_MASK,
8583 DIV_ROUND_UP(pat_len, 8),
8584 rule->patterns[j].mask) ||
8585 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8586 rule->patterns[j].pattern) ||
8587 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8588 rule->patterns[j].pkt_offset))
8589 return -ENOBUFS;
8590 nla_nest_end(msg, nl_pat);
8591 }
8592 nla_nest_end(msg, nl_pats);
8593 nla_nest_end(msg, nl_rule);
8594 }
8595 nla_nest_end(msg, nl_rules);
8596
8597 return 0;
8598}
8599
8600static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8601{
8602 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8603 struct sk_buff *msg;
8604 void *hdr;
8605
8606 if (!rdev->wiphy.coalesce)
8607 return -EOPNOTSUPP;
8608
8609 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8610 if (!msg)
8611 return -ENOMEM;
8612
8613 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8614 NL80211_CMD_GET_COALESCE);
8615 if (!hdr)
8616 goto nla_put_failure;
8617
8618 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8619 goto nla_put_failure;
8620
8621 genlmsg_end(msg, hdr);
8622 return genlmsg_reply(msg, info);
8623
8624nla_put_failure:
8625 nlmsg_free(msg);
8626 return -ENOBUFS;
8627}
8628
8629void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8630{
8631 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8632 int i, j;
8633 struct cfg80211_coalesce_rules *rule;
8634
8635 if (!coalesce)
8636 return;
8637
8638 for (i = 0; i < coalesce->n_rules; i++) {
8639 rule = &coalesce->rules[i];
8640 for (j = 0; j < rule->n_patterns; j++)
8641 kfree(rule->patterns[j].mask);
8642 kfree(rule->patterns);
8643 }
8644 kfree(coalesce->rules);
8645 kfree(coalesce);
8646 rdev->coalesce = NULL;
8647}
8648
8649static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8650 struct nlattr *rule,
8651 struct cfg80211_coalesce_rules *new_rule)
8652{
8653 int err, i;
8654 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8655 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8656 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8657 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8658
8659 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8660 nla_len(rule), nl80211_coalesce_policy);
8661 if (err)
8662 return err;
8663
8664 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8665 new_rule->delay =
8666 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8667 if (new_rule->delay > coalesce->max_delay)
8668 return -EINVAL;
8669
8670 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8671 new_rule->condition =
8672 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8673 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8674 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8675 return -EINVAL;
8676
8677 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8678 return -EINVAL;
8679
8680 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8681 rem)
8682 n_patterns++;
8683 if (n_patterns > coalesce->n_patterns)
8684 return -EINVAL;
8685
8686 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8687 GFP_KERNEL);
8688 if (!new_rule->patterns)
8689 return -ENOMEM;
8690
8691 new_rule->n_patterns = n_patterns;
8692 i = 0;
8693
8694 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8695 rem) {
8696 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8697 nla_len(pat), NULL);
8698 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8699 !pat_tb[NL80211_PKTPAT_PATTERN])
8700 return -EINVAL;
8701 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8702 mask_len = DIV_ROUND_UP(pat_len, 8);
8703 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8704 return -EINVAL;
8705 if (pat_len > coalesce->pattern_max_len ||
8706 pat_len < coalesce->pattern_min_len)
8707 return -EINVAL;
8708
8709 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8710 pkt_offset = 0;
8711 else
8712 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8713 if (pkt_offset > coalesce->max_pkt_offset)
8714 return -EINVAL;
8715 new_rule->patterns[i].pkt_offset = pkt_offset;
8716
8717 new_rule->patterns[i].mask =
8718 kmalloc(mask_len + pat_len, GFP_KERNEL);
8719 if (!new_rule->patterns[i].mask)
8720 return -ENOMEM;
8721 new_rule->patterns[i].pattern =
8722 new_rule->patterns[i].mask + mask_len;
8723 memcpy(new_rule->patterns[i].mask,
8724 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8725 new_rule->patterns[i].pattern_len = pat_len;
8726 memcpy(new_rule->patterns[i].pattern,
8727 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8728 i++;
8729 }
8730
8731 return 0;
8732}
8733
8734static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8735{
8736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8737 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8738 struct cfg80211_coalesce new_coalesce = {};
8739 struct cfg80211_coalesce *n_coalesce;
8740 int err, rem_rule, n_rules = 0, i, j;
8741 struct nlattr *rule;
8742 struct cfg80211_coalesce_rules *tmp_rule;
8743
8744 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8745 return -EOPNOTSUPP;
8746
8747 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8748 cfg80211_rdev_free_coalesce(rdev);
8749 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8750 return 0;
8751 }
8752
8753 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8754 rem_rule)
8755 n_rules++;
8756 if (n_rules > coalesce->n_rules)
8757 return -EINVAL;
8758
8759 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8760 GFP_KERNEL);
8761 if (!new_coalesce.rules)
8762 return -ENOMEM;
8763
8764 new_coalesce.n_rules = n_rules;
8765 i = 0;
8766
8767 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8768 rem_rule) {
8769 err = nl80211_parse_coalesce_rule(rdev, rule,
8770 &new_coalesce.rules[i]);
8771 if (err)
8772 goto error;
8773
8774 i++;
8775 }
8776
8777 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8778 if (err)
8779 goto error;
8780
8781 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8782 if (!n_coalesce) {
8783 err = -ENOMEM;
8784 goto error;
8785 }
8786 cfg80211_rdev_free_coalesce(rdev);
8787 rdev->coalesce = n_coalesce;
8788
8789 return 0;
8790error:
8791 for (i = 0; i < new_coalesce.n_rules; i++) {
8792 tmp_rule = &new_coalesce.rules[i];
8793 for (j = 0; j < tmp_rule->n_patterns; j++)
8794 kfree(tmp_rule->patterns[j].mask);
8795 kfree(tmp_rule->patterns);
8796 }
8797 kfree(new_coalesce.rules);
8798
8799 return err;
8800}
8801
e5497d76
JB		 8802static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8803{
8804 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8805 struct net_device *dev = info->user_ptr[1];
8806 struct wireless_dev *wdev = dev->ieee80211_ptr;
8807 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8808 struct cfg80211_gtk_rekey_data rekey_data;
8809 int err;
8810
8811 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8812 return -EINVAL;
8813
8814 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8815 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8816 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8817 nl80211_rekey_policy);
8818 if (err)
8819 return err;
8820
8821 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8822 return -ERANGE;
8823 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8824 return -ERANGE;
8825 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8826 return -ERANGE;
8827
8828 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8829 NL80211_KEK_LEN);
8830 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8831 NL80211_KCK_LEN);
8832 memcpy(rekey_data.replay_ctr,
8833 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8834 NL80211_REPLAY_CTR_LEN);
8835
8836 wdev_lock(wdev);
8837 if (!wdev->current_bss) {
8838 err = -ENOTCONN;
8839 goto out;
8840 }
8841
8842 if (!rdev->ops->set_rekey_data) {
8843 err = -EOPNOTSUPP;
8844 goto out;
8845 }
8846
e35e4d28 8847 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8848 out:
8849 wdev_unlock(wdev);
8850 return err;
8851}
8852
28946da7
JB		 8853static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8854 struct genl_info *info)
8855{
8856 struct net_device *dev = info->user_ptr[1];
8857 struct wireless_dev *wdev = dev->ieee80211_ptr;
8858
8859 if (wdev->iftype != NL80211_IFTYPE_AP &&
8860 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8861 return -EINVAL;
8862
15e47304 8863 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8864 return -EBUSY;
8865
15e47304 8866 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8867 return 0;
8868}
8869
7f6cf311
JB		 8870static int nl80211_probe_client(struct sk_buff *skb,
8871 struct genl_info *info)
8872{
8873 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8874 struct net_device *dev = info->user_ptr[1];
8875 struct wireless_dev *wdev = dev->ieee80211_ptr;
8876 struct sk_buff *msg;
8877 void *hdr;
8878 const u8 *addr;
8879 u64 cookie;
8880 int err;
8881
8882 if (wdev->iftype != NL80211_IFTYPE_AP &&
8883 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8884 return -EOPNOTSUPP;
8885
8886 if (!info->attrs[NL80211_ATTR_MAC])
8887 return -EINVAL;
8888
8889 if (!rdev->ops->probe_client)
8890 return -EOPNOTSUPP;
8891
8892 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8893 if (!msg)
8894 return -ENOMEM;
8895
15e47304 8896 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8897 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8898 if (!hdr) {
8899 err = -ENOBUFS;
7f6cf311
JB		 8900 goto free_msg;
8901 }
8902
8903 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8904
e35e4d28 8905 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8906 if (err)
8907 goto free_msg;
8908
9360ffd1
DM		 8909 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8910 goto nla_put_failure;
7f6cf311
JB		 8911
8912 genlmsg_end(msg, hdr);
8913
8914 return genlmsg_reply(msg, info);
8915
8916 nla_put_failure:
8917 err = -ENOBUFS;
8918 free_msg:
8919 nlmsg_free(msg);
8920 return err;
8921}
8922
5e760230
JB		 8923static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8924{
8925 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8926 struct cfg80211_beacon_registration *reg, *nreg;
8927 int rv;
5e760230
JB		 8928
8929 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8930 return -EOPNOTSUPP;
8931
37c73b5f
BG		 8932 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8933 if (!nreg)
8934 return -ENOMEM;
8935
8936 /* First, check if already registered. */
8937 spin_lock_bh(&rdev->beacon_registrations_lock);
8938 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8939 if (reg->nlportid == info->snd_portid) {
8940 rv = -EALREADY;
8941 goto out_err;
8942 }
8943 }
8944 /* Add it to the list */
8945 nreg->nlportid = info->snd_portid;
8946 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8947
37c73b5f 8948 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8949
8950 return 0;
37c73b5f
BG		 8951out_err:
8952 spin_unlock_bh(&rdev->beacon_registrations_lock);
8953 kfree(nreg);
8954 return rv;
5e760230
JB		 8955}
8956
98104fde
JB		 8957static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8958{
8959 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8960 struct wireless_dev *wdev = info->user_ptr[1];
8961 int err;
8962
8963 if (!rdev->ops->start_p2p_device)
8964 return -EOPNOTSUPP;
8965
8966 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8967 return -EOPNOTSUPP;
8968
8969 if (wdev->p2p_started)
8970 return 0;
8971
b6a55015
LC		 8972 if (rfkill_blocked(rdev->rfkill))
8973 return -ERFKILL;
98104fde 8974
eeb126e9 8975 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8976 if (err)
8977 return err;
8978
8979 wdev->p2p_started = true;
98104fde 8980 rdev->opencount++;
98104fde
JB		 8981
8982 return 0;
8983}
8984
8985static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8986{
8987 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8988 struct wireless_dev *wdev = info->user_ptr[1];
8989
8990 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8991 return -EOPNOTSUPP;
8992
8993 if (!rdev->ops->stop_p2p_device)
8994 return -EOPNOTSUPP;
8995
f9f47529 8996 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8997
8998 return 0;
8999}
9000
3713b4e3
JB		 9001static int nl80211_get_protocol_features(struct sk_buff *skb,
9002 struct genl_info *info)
9003{
9004 void *hdr;
9005 struct sk_buff *msg;
9006
9007 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9008 if (!msg)
9009 return -ENOMEM;
9010
9011 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9012 NL80211_CMD_GET_PROTOCOL_FEATURES);
9013 if (!hdr)
9014 goto nla_put_failure;
9015
9016 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9017 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9018 goto nla_put_failure;
9019
9020 genlmsg_end(msg, hdr);
9021 return genlmsg_reply(msg, info);
9022
9023 nla_put_failure:
9024 kfree_skb(msg);
9025 return -ENOBUFS;
9026}
9027
355199e0
JM		 9028static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9029{
9030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9031 struct cfg80211_update_ft_ies_params ft_params;
9032 struct net_device *dev = info->user_ptr[1];
9033
9034 if (!rdev->ops->update_ft_ies)
9035 return -EOPNOTSUPP;
9036
9037 if (!info->attrs[NL80211_ATTR_MDID] ||
9038 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9039 return -EINVAL;
9040
9041 memset(&ft_params, 0, sizeof(ft_params));
9042 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9043 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9044 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9045
9046 return rdev_update_ft_ies(rdev, dev, &ft_params);
9047}
9048
5de17984
AS		 9049static int nl80211_crit_protocol_start(struct sk_buff *skb,
9050 struct genl_info *info)
9051{
9052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9053 struct wireless_dev *wdev = info->user_ptr[1];
9054 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9055 u16 duration;
9056 int ret;
9057
9058 if (!rdev->ops->crit_proto_start)
9059 return -EOPNOTSUPP;
9060
9061 if (WARN_ON(!rdev->ops->crit_proto_stop))
9062 return -EINVAL;
9063
9064 if (rdev->crit_proto_nlportid)
9065 return -EBUSY;
9066
9067 /* determine protocol if provided */
9068 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9069 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9070
9071 if (proto >= NUM_NL80211_CRIT_PROTO)
9072 return -EINVAL;
9073
9074 /* timeout must be provided */
9075 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9076 return -EINVAL;
9077
9078 duration =
9079 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9080
9081 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9082 return -ERANGE;
9083
9084 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9085 if (!ret)
9086 rdev->crit_proto_nlportid = info->snd_portid;
9087
9088 return ret;
9089}
9090
9091static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9092 struct genl_info *info)
9093{
9094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9095 struct wireless_dev *wdev = info->user_ptr[1];
9096
9097 if (!rdev->ops->crit_proto_stop)
9098 return -EOPNOTSUPP;
9099
9100 if (rdev->crit_proto_nlportid) {
9101 rdev->crit_proto_nlportid = 0;
9102 rdev_crit_proto_stop(rdev, wdev);
9103 }
9104 return 0;
9105}
9106
ad7e718c
JB		 9107static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9108{
9109 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9110 struct wireless_dev *wdev =
9111 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9112 int i, err;
9113 u32 vid, subcmd;
9114
9115 if (!rdev->wiphy.vendor_commands)
9116 return -EOPNOTSUPP;
9117
9118 if (IS_ERR(wdev)) {
9119 err = PTR_ERR(wdev);
9120 if (err != -EINVAL)
9121 return err;
9122 wdev = NULL;
9123 } else if (wdev->wiphy != &rdev->wiphy) {
9124 return -EINVAL;
9125 }
9126
9127 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9128 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9129 return -EINVAL;
9130
9131 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9132 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9133 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9134 const struct wiphy_vendor_command *vcmd;
9135 void *data = NULL;
9136 int len = 0;
9137
9138 vcmd = &rdev->wiphy.vendor_commands[i];
9139
9140 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9141 continue;
9142
9143 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9144 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9145 if (!wdev)
9146 return -EINVAL;
9147 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9148 !wdev->netdev)
9149 return -EINVAL;
9150
9151 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9152 if (wdev->netdev &&
9153 !netif_running(wdev->netdev))
9154 return -ENETDOWN;
9155 if (!wdev->netdev && !wdev->p2p_started)
9156 return -ENETDOWN;
9157 }
9158 } else {
9159 wdev = NULL;
9160 }
9161
9162 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9163 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9164 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9165 }
9166
9167 rdev->cur_cmd_info = info;
9168 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9169 data, len);
9170 rdev->cur_cmd_info = NULL;
9171 return err;
9172 }
9173
9174 return -EOPNOTSUPP;
9175}
9176
9177struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9178 enum nl80211_commands cmd,
9179 enum nl80211_attrs attr,
9180 int approxlen)
9181{
9182 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9183
9184 if (WARN_ON(!rdev->cur_cmd_info))
9185 return NULL;
9186
9187 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9188 rdev->cur_cmd_info->snd_portid,
9189 rdev->cur_cmd_info->snd_seq,
567ffc35 9190 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9191}
9192EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9193
9194int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9195{
9196 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9197 void *hdr = ((void **)skb->cb)[1];
9198 struct nlattr *data = ((void **)skb->cb)[2];
9199
9200 if (WARN_ON(!rdev->cur_cmd_info)) {
9201 kfree_skb(skb);
9202 return -EINVAL;
9203 }
9204
9205 nla_nest_end(skb, data);
9206 genlmsg_end(skb, hdr);
9207 return genlmsg_reply(skb, rdev->cur_cmd_info);
9208}
9209EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9210
9211
fa9ffc74
KP		 9212static int nl80211_set_qos_map(struct sk_buff *skb,
9213 struct genl_info *info)
9214{
9215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9216 struct cfg80211_qos_map *qos_map = NULL;
9217 struct net_device *dev = info->user_ptr[1];
9218 u8 *pos, len, num_des, des_len, des;
9219 int ret;
9220
9221 if (!rdev->ops->set_qos_map)
9222 return -EOPNOTSUPP;
9223
9224 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9225 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9226 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9227
9228 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9229 len > IEEE80211_QOS_MAP_LEN_MAX)
9230 return -EINVAL;
9231
9232 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9233 if (!qos_map)
9234 return -ENOMEM;
9235
9236 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9237 if (num_des) {
9238 des_len = num_des *
9239 sizeof(struct cfg80211_dscp_exception);
9240 memcpy(qos_map->dscp_exception, pos, des_len);
9241 qos_map->num_des = num_des;
9242 for (des = 0; des < num_des; des++) {
9243 if (qos_map->dscp_exception[des].up > 7) {
9244 kfree(qos_map);
9245 return -EINVAL;
9246 }
9247 }
9248 pos += des_len;
9249 }
9250 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9251 }
9252
9253 wdev_lock(dev->ieee80211_ptr);
9254 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9255 if (!ret)
9256 ret = rdev_set_qos_map(rdev, dev, qos_map);
9257 wdev_unlock(dev->ieee80211_ptr);
9258
9259 kfree(qos_map);
9260 return ret;
9261}
9262
4c476991
JB		 9263#define NL80211_FLAG_NEED_WIPHY 0x01
9264#define NL80211_FLAG_NEED_NETDEV 0x02
9265#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9266#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9267#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9268 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9269#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9270/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9271#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9272 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9273
f84f771d 9274static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9275 struct genl_info *info)
9276{
9277 struct cfg80211_registered_device *rdev;
89a54e48 9278 struct wireless_dev *wdev;
4c476991 9279 struct net_device *dev;
4c476991
JB		 9280 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9281
9282 if (rtnl)
9283 rtnl_lock();
9284
9285 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9286 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9287 if (IS_ERR(rdev)) {
9288 if (rtnl)
9289 rtnl_unlock();
9290 return PTR_ERR(rdev);
9291 }
9292 info->user_ptr[0] = rdev;
1bf614ef
JB		 9293 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9294 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9295 ASSERT_RTNL();
9296
89a54e48
JB		 9297 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9298 info->attrs);
9299 if (IS_ERR(wdev)) {
4c476991
JB		 9300 if (rtnl)
9301 rtnl_unlock();
89a54e48 9302 return PTR_ERR(wdev);
4c476991 9303 }
89a54e48 9304
89a54e48
JB		 9305 dev = wdev->netdev;
9306 rdev = wiphy_to_dev(wdev->wiphy);
9307
1bf614ef
JB		 9308 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9309 if (!dev) {
1bf614ef
JB		 9310 if (rtnl)
9311 rtnl_unlock();
9312 return -EINVAL;
9313 }
9314
9315 info->user_ptr[1] = dev;
9316 } else {
9317 info->user_ptr[1] = wdev;
41265714 9318 }
1bf614ef
JB		 9319
9320 if (dev) {
9321 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9322 !netif_running(dev)) {
1bf614ef
JB		 9323 if (rtnl)
9324 rtnl_unlock();
9325 return -ENETDOWN;
9326 }
9327
9328 dev_hold(dev);
98104fde
JB		 9329 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9330 if (!wdev->p2p_started) {
98104fde
JB		 9331 if (rtnl)
9332 rtnl_unlock();
9333 return -ENETDOWN;
9334 }
41265714 9335 }
89a54e48 9336
4c476991 9337 info->user_ptr[0] = rdev;
4c476991
JB		 9338 }
9339
9340 return 0;
9341}
9342
f84f771d 9343static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9344 struct genl_info *info)
9345{
1bf614ef
JB		 9346 if (info->user_ptr[1]) {
9347 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9348 struct wireless_dev *wdev = info->user_ptr[1];
9349
9350 if (wdev->netdev)
9351 dev_put(wdev->netdev);
9352 } else {
9353 dev_put(info->user_ptr[1]);
9354 }
9355 }
4c476991
JB		 9356 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9357 rtnl_unlock();
9358}
9359
4534de83 9360static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9361 {
9362 .cmd = NL80211_CMD_GET_WIPHY,
9363 .doit = nl80211_get_wiphy,
9364 .dumpit = nl80211_dump_wiphy,
86e8cf98 9365 .done = nl80211_dump_wiphy_done,
55682965
JB		 9366 .policy = nl80211_policy,
9367 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9368 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9369 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9370 },
9371 {
9372 .cmd = NL80211_CMD_SET_WIPHY,
9373 .doit = nl80211_set_wiphy,
9374 .policy = nl80211_policy,
9375 .flags = GENL_ADMIN_PERM,
4c476991 9376 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9377 },
9378 {
9379 .cmd = NL80211_CMD_GET_INTERFACE,
9380 .doit = nl80211_get_interface,
9381 .dumpit = nl80211_dump_interface,
9382 .policy = nl80211_policy,
9383 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9384 .internal_flags = NL80211_FLAG_NEED_WDEV |
9385 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9386 },
9387 {
9388 .cmd = NL80211_CMD_SET_INTERFACE,
9389 .doit = nl80211_set_interface,
9390 .policy = nl80211_policy,
9391 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9392 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9393 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9394 },
9395 {
9396 .cmd = NL80211_CMD_NEW_INTERFACE,
9397 .doit = nl80211_new_interface,
9398 .policy = nl80211_policy,
9399 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9400 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9401 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9402 },
9403 {
9404 .cmd = NL80211_CMD_DEL_INTERFACE,
9405 .doit = nl80211_del_interface,
9406 .policy = nl80211_policy,
41ade00f 9407 .flags = GENL_ADMIN_PERM,
84efbb84 9408 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9409 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9410 },
9411 {
9412 .cmd = NL80211_CMD_GET_KEY,
9413 .doit = nl80211_get_key,
9414 .policy = nl80211_policy,
9415 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9416 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9417 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9418 },
9419 {
9420 .cmd = NL80211_CMD_SET_KEY,
9421 .doit = nl80211_set_key,
9422 .policy = nl80211_policy,
9423 .flags = GENL_ADMIN_PERM,
41265714 9424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9425 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9426 },
9427 {
9428 .cmd = NL80211_CMD_NEW_KEY,
9429 .doit = nl80211_new_key,
9430 .policy = nl80211_policy,
9431 .flags = GENL_ADMIN_PERM,
41265714 9432 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9433 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9434 },
9435 {
9436 .cmd = NL80211_CMD_DEL_KEY,
9437 .doit = nl80211_del_key,
9438 .policy = nl80211_policy,
55682965 9439 .flags = GENL_ADMIN_PERM,
41265714 9440 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9441 NL80211_FLAG_NEED_RTNL,
55682965 9442 },
ed1b6cc7
JB		 9443 {
9444 .cmd = NL80211_CMD_SET_BEACON,
9445 .policy = nl80211_policy,
9446 .flags = GENL_ADMIN_PERM,
8860020e 9447 .doit = nl80211_set_beacon,
2b5f8b0b 9448 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9449 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9450 },
9451 {
8860020e 9452 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9453 .policy = nl80211_policy,
9454 .flags = GENL_ADMIN_PERM,
8860020e 9455 .doit = nl80211_start_ap,
2b5f8b0b 9456 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9457 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9458 },
9459 {
8860020e 9460 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9461 .policy = nl80211_policy,
9462 .flags = GENL_ADMIN_PERM,
8860020e 9463 .doit = nl80211_stop_ap,
2b5f8b0b 9464 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9465 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9466 },
5727ef1b
JB		 9467 {
9468 .cmd = NL80211_CMD_GET_STATION,
9469 .doit = nl80211_get_station,
2ec600d6 9470 .dumpit = nl80211_dump_station,
5727ef1b 9471 .policy = nl80211_policy,
4c476991
JB		 9472 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9473 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9474 },
9475 {
9476 .cmd = NL80211_CMD_SET_STATION,
9477 .doit = nl80211_set_station,
9478 .policy = nl80211_policy,
9479 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9480 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9481 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9482 },
9483 {
9484 .cmd = NL80211_CMD_NEW_STATION,
9485 .doit = nl80211_new_station,
9486 .policy = nl80211_policy,
9487 .flags = GENL_ADMIN_PERM,
41265714 9488 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9489 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9490 },
9491 {
9492 .cmd = NL80211_CMD_DEL_STATION,
9493 .doit = nl80211_del_station,
9494 .policy = nl80211_policy,
2ec600d6 9495 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9496 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9497 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9498 },
9499 {
9500 .cmd = NL80211_CMD_GET_MPATH,
9501 .doit = nl80211_get_mpath,
9502 .dumpit = nl80211_dump_mpath,
9503 .policy = nl80211_policy,
9504 .flags = GENL_ADMIN_PERM,
41265714 9505 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9506 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9507 },
9508 {
9509 .cmd = NL80211_CMD_SET_MPATH,
9510 .doit = nl80211_set_mpath,
9511 .policy = nl80211_policy,
9512 .flags = GENL_ADMIN_PERM,
41265714 9513 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9514 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9515 },
9516 {
9517 .cmd = NL80211_CMD_NEW_MPATH,
9518 .doit = nl80211_new_mpath,
9519 .policy = nl80211_policy,
9520 .flags = GENL_ADMIN_PERM,
41265714 9521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9522 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9523 },
9524 {
9525 .cmd = NL80211_CMD_DEL_MPATH,
9526 .doit = nl80211_del_mpath,
9527 .policy = nl80211_policy,
9f1ba906 9528 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9529 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9530 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9531 },
9532 {
9533 .cmd = NL80211_CMD_SET_BSS,
9534 .doit = nl80211_set_bss,
9535 .policy = nl80211_policy,
b2e1b302 9536 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9537 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9538 NL80211_FLAG_NEED_RTNL,
b2e1b302 9539 },
f130347c
LR		 9540 {
9541 .cmd = NL80211_CMD_GET_REG,
9542 .doit = nl80211_get_reg,
9543 .policy = nl80211_policy,
5fe231e8 9544 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9545 /* can be retrieved by unprivileged users */
9546 },
b2e1b302
LR		 9547 {
9548 .cmd = NL80211_CMD_SET_REG,
9549 .doit = nl80211_set_reg,
9550 .policy = nl80211_policy,
9551 .flags = GENL_ADMIN_PERM,
5fe231e8 9552 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9553 },
9554 {
9555 .cmd = NL80211_CMD_REQ_SET_REG,
9556 .doit = nl80211_req_set_reg,
9557 .policy = nl80211_policy,
93da9cc1 9558 .flags = GENL_ADMIN_PERM,
9559 },
9560 {
24bdd9f4
JC		 9561 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9562 .doit = nl80211_get_mesh_config,
93da9cc1 9563 .policy = nl80211_policy,
9564 /* can be retrieved by unprivileged users */
2b5f8b0b 9565 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9566 NL80211_FLAG_NEED_RTNL,
93da9cc1 9567 },
9568 {
24bdd9f4
JC		 9569 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9570 .doit = nl80211_update_mesh_config,
93da9cc1 9571 .policy = nl80211_policy,
9aed3cc1 9572 .flags = GENL_ADMIN_PERM,
29cbe68c 9573 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9574 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9575 },
2a519311
JB		 9576 {
9577 .cmd = NL80211_CMD_TRIGGER_SCAN,
9578 .doit = nl80211_trigger_scan,
9579 .policy = nl80211_policy,
9580 .flags = GENL_ADMIN_PERM,
fd014284 9581 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9582 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9583 },
9584 {
9585 .cmd = NL80211_CMD_GET_SCAN,
9586 .policy = nl80211_policy,
9587 .dumpit = nl80211_dump_scan,
9588 },
807f8a8c
LC		 9589 {
9590 .cmd = NL80211_CMD_START_SCHED_SCAN,
9591 .doit = nl80211_start_sched_scan,
9592 .policy = nl80211_policy,
9593 .flags = GENL_ADMIN_PERM,
9594 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9595 NL80211_FLAG_NEED_RTNL,
9596 },
9597 {
9598 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9599 .doit = nl80211_stop_sched_scan,
9600 .policy = nl80211_policy,
9601 .flags = GENL_ADMIN_PERM,
9602 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9603 NL80211_FLAG_NEED_RTNL,
9604 },
636a5d36
JM		 9605 {
9606 .cmd = NL80211_CMD_AUTHENTICATE,
9607 .doit = nl80211_authenticate,
9608 .policy = nl80211_policy,
9609 .flags = GENL_ADMIN_PERM,
41265714 9610 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9611 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9612 },
9613 {
9614 .cmd = NL80211_CMD_ASSOCIATE,
9615 .doit = nl80211_associate,
9616 .policy = nl80211_policy,
9617 .flags = GENL_ADMIN_PERM,
41265714 9618 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9619 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9620 },
9621 {
9622 .cmd = NL80211_CMD_DEAUTHENTICATE,
9623 .doit = nl80211_deauthenticate,
9624 .policy = nl80211_policy,
9625 .flags = GENL_ADMIN_PERM,
41265714 9626 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9627 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9628 },
9629 {
9630 .cmd = NL80211_CMD_DISASSOCIATE,
9631 .doit = nl80211_disassociate,
9632 .policy = nl80211_policy,
9633 .flags = GENL_ADMIN_PERM,
41265714 9634 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9635 NL80211_FLAG_NEED_RTNL,
636a5d36 9636 },
04a773ad
JB		 9637 {
9638 .cmd = NL80211_CMD_JOIN_IBSS,
9639 .doit = nl80211_join_ibss,
9640 .policy = nl80211_policy,
9641 .flags = GENL_ADMIN_PERM,
41265714 9642 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9643 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9644 },
9645 {
9646 .cmd = NL80211_CMD_LEAVE_IBSS,
9647 .doit = nl80211_leave_ibss,
9648 .policy = nl80211_policy,
9649 .flags = GENL_ADMIN_PERM,
41265714 9650 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9651 NL80211_FLAG_NEED_RTNL,
04a773ad 9652 },
aff89a9b
JB		 9653#ifdef CONFIG_NL80211_TESTMODE
9654 {
9655 .cmd = NL80211_CMD_TESTMODE,
9656 .doit = nl80211_testmode_do,
71063f0e 9657 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9658 .policy = nl80211_policy,
9659 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9660 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9661 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9662 },
9663#endif
b23aa676
SO		 9664 {
9665 .cmd = NL80211_CMD_CONNECT,
9666 .doit = nl80211_connect,
9667 .policy = nl80211_policy,
9668 .flags = GENL_ADMIN_PERM,
41265714 9669 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9670 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9671 },
9672 {
9673 .cmd = NL80211_CMD_DISCONNECT,
9674 .doit = nl80211_disconnect,
9675 .policy = nl80211_policy,
9676 .flags = GENL_ADMIN_PERM,
41265714 9677 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9678 NL80211_FLAG_NEED_RTNL,
b23aa676 9679 },
463d0183
JB		 9680 {
9681 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9682 .doit = nl80211_wiphy_netns,
9683 .policy = nl80211_policy,
9684 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9685 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9686 NL80211_FLAG_NEED_RTNL,
463d0183 9687 },
61fa713c
HS		 9688 {
9689 .cmd = NL80211_CMD_GET_SURVEY,
9690 .policy = nl80211_policy,
9691 .dumpit = nl80211_dump_survey,
9692 },
67fbb16b
SO		 9693 {
9694 .cmd = NL80211_CMD_SET_PMKSA,
9695 .doit = nl80211_setdel_pmksa,
9696 .policy = nl80211_policy,
9697 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9698 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9699 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9700 },
9701 {
9702 .cmd = NL80211_CMD_DEL_PMKSA,
9703 .doit = nl80211_setdel_pmksa,
9704 .policy = nl80211_policy,
9705 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9706 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9707 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9708 },
9709 {
9710 .cmd = NL80211_CMD_FLUSH_PMKSA,
9711 .doit = nl80211_flush_pmksa,
9712 .policy = nl80211_policy,
9713 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9714 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9715 NL80211_FLAG_NEED_RTNL,
67fbb16b 9716 },
9588bbd5
JM		 9717 {
9718 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9719 .doit = nl80211_remain_on_channel,
9720 .policy = nl80211_policy,
9721 .flags = GENL_ADMIN_PERM,
71bbc994 9722 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9723 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9724 },
9725 {
9726 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9727 .doit = nl80211_cancel_remain_on_channel,
9728 .policy = nl80211_policy,
9729 .flags = GENL_ADMIN_PERM,
71bbc994 9730 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9731 NL80211_FLAG_NEED_RTNL,
9588bbd5 9732 },
13ae75b1
JM		 9733 {
9734 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9735 .doit = nl80211_set_tx_bitrate_mask,
9736 .policy = nl80211_policy,
9737 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9738 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9739 NL80211_FLAG_NEED_RTNL,
13ae75b1 9740 },
026331c4 9741 {
2e161f78
JB		 9742 .cmd = NL80211_CMD_REGISTER_FRAME,
9743 .doit = nl80211_register_mgmt,
026331c4
JM		 9744 .policy = nl80211_policy,
9745 .flags = GENL_ADMIN_PERM,
71bbc994 9746 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9747 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9748 },
9749 {
2e161f78
JB		 9750 .cmd = NL80211_CMD_FRAME,
9751 .doit = nl80211_tx_mgmt,
026331c4 9752 .policy = nl80211_policy,
f7ca38df 9753 .flags = GENL_ADMIN_PERM,
71bbc994 9754 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9755 NL80211_FLAG_NEED_RTNL,
9756 },
9757 {
9758 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9759 .doit = nl80211_tx_mgmt_cancel_wait,
9760 .policy = nl80211_policy,
026331c4 9761 .flags = GENL_ADMIN_PERM,
71bbc994 9762 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9763 NL80211_FLAG_NEED_RTNL,
026331c4 9764 },
ffb9eb3d
KV		 9765 {
9766 .cmd = NL80211_CMD_SET_POWER_SAVE,
9767 .doit = nl80211_set_power_save,
9768 .policy = nl80211_policy,
9769 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9770 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9771 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9772 },
9773 {
9774 .cmd = NL80211_CMD_GET_POWER_SAVE,
9775 .doit = nl80211_get_power_save,
9776 .policy = nl80211_policy,
9777 /* can be retrieved by unprivileged users */
4c476991
JB		 9778 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9779 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9780 },
d6dc1a38
JO		 9781 {
9782 .cmd = NL80211_CMD_SET_CQM,
9783 .doit = nl80211_set_cqm,
9784 .policy = nl80211_policy,
9785 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9786 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9787 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9788 },
f444de05
JB		 9789 {
9790 .cmd = NL80211_CMD_SET_CHANNEL,
9791 .doit = nl80211_set_channel,
9792 .policy = nl80211_policy,
9793 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9794 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9795 NL80211_FLAG_NEED_RTNL,
f444de05 9796 },
e8347eba
BJ		 9797 {
9798 .cmd = NL80211_CMD_SET_WDS_PEER,
9799 .doit = nl80211_set_wds_peer,
9800 .policy = nl80211_policy,
9801 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9802 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9803 NL80211_FLAG_NEED_RTNL,
e8347eba 9804 },
29cbe68c
JB		 9805 {
9806 .cmd = NL80211_CMD_JOIN_MESH,
9807 .doit = nl80211_join_mesh,
9808 .policy = nl80211_policy,
9809 .flags = GENL_ADMIN_PERM,
9810 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9811 NL80211_FLAG_NEED_RTNL,
9812 },
9813 {
9814 .cmd = NL80211_CMD_LEAVE_MESH,
9815 .doit = nl80211_leave_mesh,
9816 .policy = nl80211_policy,
9817 .flags = GENL_ADMIN_PERM,
9818 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9819 NL80211_FLAG_NEED_RTNL,
9820 },
dfb89c56 9821#ifdef CONFIG_PM
ff1b6e69
JB		 9822 {
9823 .cmd = NL80211_CMD_GET_WOWLAN,
9824 .doit = nl80211_get_wowlan,
9825 .policy = nl80211_policy,
9826 /* can be retrieved by unprivileged users */
9827 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9828 NL80211_FLAG_NEED_RTNL,
9829 },
9830 {
9831 .cmd = NL80211_CMD_SET_WOWLAN,
9832 .doit = nl80211_set_wowlan,
9833 .policy = nl80211_policy,
9834 .flags = GENL_ADMIN_PERM,
9835 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9836 NL80211_FLAG_NEED_RTNL,
9837 },
dfb89c56 9838#endif
e5497d76
JB		 9839 {
9840 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9841 .doit = nl80211_set_rekey_data,
9842 .policy = nl80211_policy,
9843 .flags = GENL_ADMIN_PERM,
9844 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9845 NL80211_FLAG_NEED_RTNL,
9846 },
109086ce
AN		 9847 {
9848 .cmd = NL80211_CMD_TDLS_MGMT,
9849 .doit = nl80211_tdls_mgmt,
9850 .policy = nl80211_policy,
9851 .flags = GENL_ADMIN_PERM,
9852 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9853 NL80211_FLAG_NEED_RTNL,
9854 },
9855 {
9856 .cmd = NL80211_CMD_TDLS_OPER,
9857 .doit = nl80211_tdls_oper,
9858 .policy = nl80211_policy,
9859 .flags = GENL_ADMIN_PERM,
9860 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9861 NL80211_FLAG_NEED_RTNL,
9862 },
28946da7
JB		 9863 {
9864 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9865 .doit = nl80211_register_unexpected_frame,
9866 .policy = nl80211_policy,
9867 .flags = GENL_ADMIN_PERM,
9868 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9869 NL80211_FLAG_NEED_RTNL,
9870 },
7f6cf311
JB		 9871 {
9872 .cmd = NL80211_CMD_PROBE_CLIENT,
9873 .doit = nl80211_probe_client,
9874 .policy = nl80211_policy,
9875 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9876 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9877 NL80211_FLAG_NEED_RTNL,
9878 },
5e760230
JB		 9879 {
9880 .cmd = NL80211_CMD_REGISTER_BEACONS,
9881 .doit = nl80211_register_beacons,
9882 .policy = nl80211_policy,
9883 .flags = GENL_ADMIN_PERM,
9884 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9885 NL80211_FLAG_NEED_RTNL,
9886 },
1d9d9213
SW		 9887 {
9888 .cmd = NL80211_CMD_SET_NOACK_MAP,
9889 .doit = nl80211_set_noack_map,
9890 .policy = nl80211_policy,
9891 .flags = GENL_ADMIN_PERM,
9892 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9893 NL80211_FLAG_NEED_RTNL,
9894 },
98104fde
JB		 9895 {
9896 .cmd = NL80211_CMD_START_P2P_DEVICE,
9897 .doit = nl80211_start_p2p_device,
9898 .policy = nl80211_policy,
9899 .flags = GENL_ADMIN_PERM,
9900 .internal_flags = NL80211_FLAG_NEED_WDEV |
9901 NL80211_FLAG_NEED_RTNL,
9902 },
9903 {
9904 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9905 .doit = nl80211_stop_p2p_device,
9906 .policy = nl80211_policy,
9907 .flags = GENL_ADMIN_PERM,
9908 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9909 NL80211_FLAG_NEED_RTNL,
9910 },
f4e583c8
AQ		 9911 {
9912 .cmd = NL80211_CMD_SET_MCAST_RATE,
9913 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 9914 .policy = nl80211_policy,
9915 .flags = GENL_ADMIN_PERM,
9916 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9917 NL80211_FLAG_NEED_RTNL,
9918 },
9919 {
9920 .cmd = NL80211_CMD_SET_MAC_ACL,
9921 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 9922 .policy = nl80211_policy,
9923 .flags = GENL_ADMIN_PERM,
9924 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9925 NL80211_FLAG_NEED_RTNL,
9926 },
04f39047
SW		 9927 {
9928 .cmd = NL80211_CMD_RADAR_DETECT,
9929 .doit = nl80211_start_radar_detection,
9930 .policy = nl80211_policy,
9931 .flags = GENL_ADMIN_PERM,
9932 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9933 NL80211_FLAG_NEED_RTNL,
9934 },
3713b4e3
JB		 9935 {
9936 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9937 .doit = nl80211_get_protocol_features,
9938 .policy = nl80211_policy,
9939 },
355199e0
JM		 9940 {
9941 .cmd = NL80211_CMD_UPDATE_FT_IES,
9942 .doit = nl80211_update_ft_ies,
9943 .policy = nl80211_policy,
9944 .flags = GENL_ADMIN_PERM,
9945 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9946 NL80211_FLAG_NEED_RTNL,
9947 },
5de17984
AS		 9948 {
9949 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9950 .doit = nl80211_crit_protocol_start,
9951 .policy = nl80211_policy,
9952 .flags = GENL_ADMIN_PERM,
9953 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9954 NL80211_FLAG_NEED_RTNL,
9955 },
9956 {
9957 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9958 .doit = nl80211_crit_protocol_stop,
9959 .policy = nl80211_policy,
9960 .flags = GENL_ADMIN_PERM,
9961 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9962 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 9963 },
9964 {
9965 .cmd = NL80211_CMD_GET_COALESCE,
9966 .doit = nl80211_get_coalesce,
9967 .policy = nl80211_policy,
9968 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9969 NL80211_FLAG_NEED_RTNL,
9970 },
9971 {
9972 .cmd = NL80211_CMD_SET_COALESCE,
9973 .doit = nl80211_set_coalesce,
9974 .policy = nl80211_policy,
9975 .flags = GENL_ADMIN_PERM,
9976 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9977 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 9978 },
9979 {
9980 .cmd = NL80211_CMD_CHANNEL_SWITCH,
9981 .doit = nl80211_channel_switch,
9982 .policy = nl80211_policy,
9983 .flags = GENL_ADMIN_PERM,
9984 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9985 NL80211_FLAG_NEED_RTNL,
9986 },
ad7e718c
JB		 9987 {
9988 .cmd = NL80211_CMD_VENDOR,
9989 .doit = nl80211_vendor_cmd,
9990 .policy = nl80211_policy,
9991 .flags = GENL_ADMIN_PERM,
9992 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9993 NL80211_FLAG_NEED_RTNL,
9994 },
fa9ffc74
KP		 9995 {
9996 .cmd = NL80211_CMD_SET_QOS_MAP,
9997 .doit = nl80211_set_qos_map,
9998 .policy = nl80211_policy,
9999 .flags = GENL_ADMIN_PERM,
10000 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10001 NL80211_FLAG_NEED_RTNL,
10002 },
55682965 10003};
9588bbd5 10004
55682965
JB		 10005/* notification functions */
10006
10007void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
10008{
10009 struct sk_buff *msg;
86e8cf98 10010 struct nl80211_dump_wiphy_state state = {};
55682965 10011
fd2120ca 10012 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10013 if (!msg)
10014 return;
10015
86e8cf98 10016 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10017 nlmsg_free(msg);
10018 return;
10019 }
10020
68eb5503 10021 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10022 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10023}
10024
362a415d
JB		 10025static int nl80211_add_scan_req(struct sk_buff *msg,
10026 struct cfg80211_registered_device *rdev)
10027{
10028 struct cfg80211_scan_request *req = rdev->scan_req;
10029 struct nlattr *nest;
10030 int i;
10031
10032 if (WARN_ON(!req))
10033 return 0;
10034
10035 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10036 if (!nest)
10037 goto nla_put_failure;
9360ffd1
DM		 10038 for (i = 0; i < req->n_ssids; i++) {
10039 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10040 goto nla_put_failure;
10041 }
362a415d
JB		 10042 nla_nest_end(msg, nest);
10043
10044 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10045 if (!nest)
10046 goto nla_put_failure;
9360ffd1
DM		 10047 for (i = 0; i < req->n_channels; i++) {
10048 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10049 goto nla_put_failure;
10050 }
362a415d
JB		 10051 nla_nest_end(msg, nest);
10052
9360ffd1
DM		 10053 if (req->ie &&
10054 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10055 goto nla_put_failure;
362a415d 10056
ae917c9f
JB		 10057 if (req->flags &&
10058 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10059 goto nla_put_failure;
ed473771 10060
362a415d
JB		 10061 return 0;
10062 nla_put_failure:
10063 return -ENOBUFS;
10064}
10065
a538e2d5
JB		 10066static int nl80211_send_scan_msg(struct sk_buff *msg,
10067 struct cfg80211_registered_device *rdev,
fd014284 10068 struct wireless_dev *wdev,
15e47304 10069 u32 portid, u32 seq, int flags,
a538e2d5 10070 u32 cmd)
2a519311
JB		 10071{
10072 void *hdr;
10073
15e47304 10074 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10075 if (!hdr)
10076 return -1;
10077
9360ffd1 10078 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10079 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10080 wdev->netdev->ifindex)) ||
10081 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10082 goto nla_put_failure;
2a519311 10083
362a415d
JB		 10084 /* ignore errors and send incomplete event anyway */
10085 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10086
10087 return genlmsg_end(msg, hdr);
10088
10089 nla_put_failure:
10090 genlmsg_cancel(msg, hdr);
10091 return -EMSGSIZE;
10092}
10093
807f8a8c
LC		 10094static int
10095nl80211_send_sched_scan_msg(struct sk_buff *msg,
10096 struct cfg80211_registered_device *rdev,
10097 struct net_device *netdev,
15e47304 10098 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10099{
10100 void *hdr;
10101
15e47304 10102 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10103 if (!hdr)
10104 return -1;
10105
9360ffd1
DM		 10106 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10107 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10108 goto nla_put_failure;
807f8a8c
LC		 10109
10110 return genlmsg_end(msg, hdr);
10111
10112 nla_put_failure:
10113 genlmsg_cancel(msg, hdr);
10114 return -EMSGSIZE;
10115}
10116
a538e2d5 10117void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10118 struct wireless_dev *wdev)
a538e2d5
JB		 10119{
10120 struct sk_buff *msg;
10121
58050fce 10122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10123 if (!msg)
10124 return;
10125
fd014284 10126 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10127 NL80211_CMD_TRIGGER_SCAN) < 0) {
10128 nlmsg_free(msg);
10129 return;
10130 }
10131
68eb5503 10132 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10133 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10134}
10135
f9d15d16
JB		 10136struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10137 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10138{
10139 struct sk_buff *msg;
10140
fd2120ca 10141 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10142 if (!msg)
f9d15d16 10143 return NULL;
2a519311 10144
fd014284 10145 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10146 aborted ? NL80211_CMD_SCAN_ABORTED :
10147 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10148 nlmsg_free(msg);
f9d15d16 10149 return NULL;
2a519311
JB		 10150 }
10151
f9d15d16 10152 return msg;
2a519311
JB		 10153}
10154
f9d15d16
JB		 10155void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10156 struct sk_buff *msg)
2a519311 10157{
2a519311
JB		 10158 if (!msg)
10159 return;
10160
68eb5503 10161 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10162 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10163}
10164
807f8a8c
LC		 10165void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10166 struct net_device *netdev)
10167{
10168 struct sk_buff *msg;
10169
10170 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10171 if (!msg)
10172 return;
10173
10174 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10175 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10176 nlmsg_free(msg);
10177 return;
10178 }
10179
68eb5503 10180 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10181 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10182}
10183
10184void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10185 struct net_device *netdev, u32 cmd)
10186{
10187 struct sk_buff *msg;
10188
58050fce 10189 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10190 if (!msg)
10191 return;
10192
10193 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10194 nlmsg_free(msg);
10195 return;
10196 }
10197
68eb5503 10198 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10199 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10200}
10201
73d54c9e
LR		 10202/*
10203 * This can happen on global regulatory changes or device specific settings
10204 * based on custom world regulatory domains.
10205 */
10206void nl80211_send_reg_change_event(struct regulatory_request *request)
10207{
10208 struct sk_buff *msg;
10209 void *hdr;
10210
fd2120ca 10211 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10212 if (!msg)
10213 return;
10214
10215 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10216 if (!hdr) {
10217 nlmsg_free(msg);
10218 return;
10219 }
10220
10221 /* Userspace can always count this one always being set */
9360ffd1
DM		 10222 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10223 goto nla_put_failure;
10224
10225 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10226 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10227 NL80211_REGDOM_TYPE_WORLD))
10228 goto nla_put_failure;
10229 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10230 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10231 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10232 goto nla_put_failure;
10233 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10234 request->intersect) {
10235 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10236 NL80211_REGDOM_TYPE_INTERSECTION))
10237 goto nla_put_failure;
10238 } else {
10239 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10240 NL80211_REGDOM_TYPE_COUNTRY) ||
10241 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10242 request->alpha2))
10243 goto nla_put_failure;
10244 }
10245
f4173766 10246 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10247 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10248 goto nla_put_failure;
73d54c9e 10249
3b7b72ee 10250 genlmsg_end(msg, hdr);
73d54c9e 10251
bc43b28c 10252 rcu_read_lock();
68eb5503 10253 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10254 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10255 rcu_read_unlock();
73d54c9e
LR		 10256
10257 return;
10258
10259nla_put_failure:
10260 genlmsg_cancel(msg, hdr);
10261 nlmsg_free(msg);
10262}
10263
6039f6d2
JM		 10264static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10265 struct net_device *netdev,
10266 const u8 *buf, size_t len,
e6d6e342 10267 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10268{
10269 struct sk_buff *msg;
10270 void *hdr;
10271
e6d6e342 10272 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10273 if (!msg)
10274 return;
10275
10276 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10277 if (!hdr) {
10278 nlmsg_free(msg);
10279 return;
10280 }
10281
9360ffd1
DM		 10282 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10283 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10284 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10285 goto nla_put_failure;
6039f6d2 10286
3b7b72ee 10287 genlmsg_end(msg, hdr);
6039f6d2 10288
68eb5503 10289 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10290 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10291 return;
10292
10293 nla_put_failure:
10294 genlmsg_cancel(msg, hdr);
10295 nlmsg_free(msg);
10296}
10297
10298void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10299 struct net_device *netdev, const u8 *buf,
10300 size_t len, gfp_t gfp)
6039f6d2
JM		 10301{
10302 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10303 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10304}
10305
10306void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10307 struct net_device *netdev, const u8 *buf,
e6d6e342 10308 size_t len, gfp_t gfp)
6039f6d2 10309{
e6d6e342
JB		 10310 nl80211_send_mlme_event(rdev, netdev, buf, len,
10311 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10312}
10313
53b46b84 10314void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10315 struct net_device *netdev, const u8 *buf,
10316 size_t len, gfp_t gfp)
6039f6d2
JM		 10317{
10318 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10319 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10320}
10321
53b46b84
JM		 10322void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10323 struct net_device *netdev, const u8 *buf,
e6d6e342 10324 size_t len, gfp_t gfp)
6039f6d2
JM		 10325{
10326 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10327 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10328}
10329
6ff57cf8
JB		 10330void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10331 size_t len)
cf4e594e 10332{
947add36
JB		 10333 struct wireless_dev *wdev = dev->ieee80211_ptr;
10334 struct wiphy *wiphy = wdev->wiphy;
10335 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6ff57cf8
JB		 10336 const struct ieee80211_mgmt *mgmt = (void *)buf;
10337 u32 cmd;
947add36 10338
6ff57cf8
JB		 10339 if (WARN_ON(len < 2))
10340 return;
cf4e594e 10341
6ff57cf8
JB		 10342 if (ieee80211_is_deauth(mgmt->frame_control))
10343 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10344 else
10345 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10346
6ff57cf8
JB		 10347 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10348 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10349}
6ff57cf8 10350EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10351
1b06bb40
LR		 10352static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10353 struct net_device *netdev, int cmd,
e6d6e342 10354 const u8 *addr, gfp_t gfp)
1965c853
JM		 10355{
10356 struct sk_buff *msg;
10357 void *hdr;
10358
e6d6e342 10359 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10360 if (!msg)
10361 return;
10362
10363 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10364 if (!hdr) {
10365 nlmsg_free(msg);
10366 return;
10367 }
10368
9360ffd1
DM		 10369 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10370 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10371 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10372 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10373 goto nla_put_failure;
1965c853 10374
3b7b72ee 10375 genlmsg_end(msg, hdr);
1965c853 10376
68eb5503 10377 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10378 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10379 return;
10380
10381 nla_put_failure:
10382 genlmsg_cancel(msg, hdr);
10383 nlmsg_free(msg);
10384}
10385
10386void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10387 struct net_device *netdev, const u8 *addr,
10388 gfp_t gfp)
1965c853
JM		 10389{
10390 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10391 addr, gfp);
1965c853
JM		 10392}
10393
10394void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10395 struct net_device *netdev, const u8 *addr,
10396 gfp_t gfp)
1965c853 10397{
e6d6e342
JB		 10398 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10399 addr, gfp);
1965c853
JM		 10400}
10401
b23aa676
SO		 10402void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10403 struct net_device *netdev, const u8 *bssid,
10404 const u8 *req_ie, size_t req_ie_len,
10405 const u8 *resp_ie, size_t resp_ie_len,
10406 u16 status, gfp_t gfp)
10407{
10408 struct sk_buff *msg;
10409 void *hdr;
10410
58050fce 10411 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10412 if (!msg)
10413 return;
10414
10415 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10416 if (!hdr) {
10417 nlmsg_free(msg);
10418 return;
10419 }
10420
9360ffd1
DM		 10421 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10422 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10423 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10424 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10425 (req_ie &&
10426 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10427 (resp_ie &&
10428 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10429 goto nla_put_failure;
b23aa676 10430
3b7b72ee 10431 genlmsg_end(msg, hdr);
b23aa676 10432
68eb5503 10433 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10434 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10435 return;
10436
10437 nla_put_failure:
10438 genlmsg_cancel(msg, hdr);
10439 nlmsg_free(msg);
10440
10441}
10442
10443void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10444 struct net_device *netdev, const u8 *bssid,
10445 const u8 *req_ie, size_t req_ie_len,
10446 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10447{
10448 struct sk_buff *msg;
10449 void *hdr;
10450
58050fce 10451 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10452 if (!msg)
10453 return;
10454
10455 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10456 if (!hdr) {
10457 nlmsg_free(msg);
10458 return;
10459 }
10460
9360ffd1
DM		 10461 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10462 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10463 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10464 (req_ie &&
10465 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10466 (resp_ie &&
10467 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10468 goto nla_put_failure;
b23aa676 10469
3b7b72ee 10470 genlmsg_end(msg, hdr);
b23aa676 10471
68eb5503 10472 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10473 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10474 return;
10475
10476 nla_put_failure:
10477 genlmsg_cancel(msg, hdr);
10478 nlmsg_free(msg);
10479
10480}
10481
10482void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10483 struct net_device *netdev, u16 reason,
667503dd 10484 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10485{
10486 struct sk_buff *msg;
10487 void *hdr;
10488
58050fce 10489 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10490 if (!msg)
10491 return;
10492
10493 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10494 if (!hdr) {
10495 nlmsg_free(msg);
10496 return;
10497 }
10498
9360ffd1
DM		 10499 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10500 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10501 (from_ap && reason &&
10502 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10503 (from_ap &&
10504 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10505 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10506 goto nla_put_failure;
b23aa676 10507
3b7b72ee 10508 genlmsg_end(msg, hdr);
b23aa676 10509
68eb5503 10510 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10511 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10512 return;
10513
10514 nla_put_failure:
10515 genlmsg_cancel(msg, hdr);
10516 nlmsg_free(msg);
10517
10518}
10519
04a773ad
JB		 10520void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10521 struct net_device *netdev, const u8 *bssid,
10522 gfp_t gfp)
10523{
10524 struct sk_buff *msg;
10525 void *hdr;
10526
fd2120ca 10527 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10528 if (!msg)
10529 return;
10530
10531 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10532 if (!hdr) {
10533 nlmsg_free(msg);
10534 return;
10535 }
10536
9360ffd1
DM		 10537 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10538 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10539 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10540 goto nla_put_failure;
04a773ad 10541
3b7b72ee 10542 genlmsg_end(msg, hdr);
04a773ad 10543
68eb5503 10544 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10545 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10546 return;
10547
10548 nla_put_failure:
10549 genlmsg_cancel(msg, hdr);
10550 nlmsg_free(msg);
10551}
10552
947add36
JB		 10553void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10554 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10555{
947add36
JB		 10556 struct wireless_dev *wdev = dev->ieee80211_ptr;
10557 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 10558 struct sk_buff *msg;
10559 void *hdr;
10560
947add36
JB		 10561 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10562 return;
10563
10564 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10565
c93b5e71
JC		 10566 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10567 if (!msg)
10568 return;
10569
10570 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10571 if (!hdr) {
10572 nlmsg_free(msg);
10573 return;
10574 }
10575
9360ffd1 10576 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10577 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10578 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10579 (ie_len && ie &&
10580 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10581 goto nla_put_failure;
c93b5e71 10582
3b7b72ee 10583 genlmsg_end(msg, hdr);
c93b5e71 10584
68eb5503 10585 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10586 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10587 return;
10588
10589 nla_put_failure:
10590 genlmsg_cancel(msg, hdr);
10591 nlmsg_free(msg);
10592}
947add36 10593EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10594
a3b8b056
JM		 10595void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10596 struct net_device *netdev, const u8 *addr,
10597 enum nl80211_key_type key_type, int key_id,
e6d6e342 10598 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10599{
10600 struct sk_buff *msg;
10601 void *hdr;
10602
e6d6e342 10603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10604 if (!msg)
10605 return;
10606
10607 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10608 if (!hdr) {
10609 nlmsg_free(msg);
10610 return;
10611 }
10612
9360ffd1
DM		 10613 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10614 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10615 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10616 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10617 (key_id != -1 &&
10618 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10619 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10620 goto nla_put_failure;
a3b8b056 10621
3b7b72ee 10622 genlmsg_end(msg, hdr);
a3b8b056 10623
68eb5503 10624 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10625 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10626 return;
10627
10628 nla_put_failure:
10629 genlmsg_cancel(msg, hdr);
10630 nlmsg_free(msg);
10631}
10632
6bad8766
LR		 10633void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10634 struct ieee80211_channel *channel_before,
10635 struct ieee80211_channel *channel_after)
10636{
10637 struct sk_buff *msg;
10638 void *hdr;
10639 struct nlattr *nl_freq;
10640
fd2120ca 10641 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10642 if (!msg)
10643 return;
10644
10645 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10646 if (!hdr) {
10647 nlmsg_free(msg);
10648 return;
10649 }
10650
10651 /*
10652 * Since we are applying the beacon hint to a wiphy we know its
10653 * wiphy_idx is valid
10654 */
9360ffd1
DM		 10655 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10656 goto nla_put_failure;
6bad8766
LR		 10657
10658 /* Before */
10659 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10660 if (!nl_freq)
10661 goto nla_put_failure;
cdc89b97 10662 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10663 goto nla_put_failure;
10664 nla_nest_end(msg, nl_freq);
10665
10666 /* After */
10667 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10668 if (!nl_freq)
10669 goto nla_put_failure;
cdc89b97 10670 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10671 goto nla_put_failure;
10672 nla_nest_end(msg, nl_freq);
10673
3b7b72ee 10674 genlmsg_end(msg, hdr);
6bad8766 10675
463d0183 10676 rcu_read_lock();
68eb5503 10677 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10678 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10679 rcu_read_unlock();
6bad8766
LR		 10680
10681 return;
10682
10683nla_put_failure:
10684 genlmsg_cancel(msg, hdr);
10685 nlmsg_free(msg);
10686}
10687
9588bbd5
JM		 10688static void nl80211_send_remain_on_chan_event(
10689 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10690 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10691 struct ieee80211_channel *chan,
9588bbd5
JM		 10692 unsigned int duration, gfp_t gfp)
10693{
10694 struct sk_buff *msg;
10695 void *hdr;
10696
10697 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10698 if (!msg)
10699 return;
10700
10701 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10702 if (!hdr) {
10703 nlmsg_free(msg);
10704 return;
10705 }
10706
9360ffd1 10707 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10708 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10709 wdev->netdev->ifindex)) ||
00f53350 10710 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10711 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10712 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10713 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10714 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10715 goto nla_put_failure;
9588bbd5 10716
9360ffd1
DM		 10717 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10718 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10719 goto nla_put_failure;
9588bbd5 10720
3b7b72ee 10721 genlmsg_end(msg, hdr);
9588bbd5 10722
68eb5503 10723 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10724 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10725 return;
10726
10727 nla_put_failure:
10728 genlmsg_cancel(msg, hdr);
10729 nlmsg_free(msg);
10730}
10731
947add36
JB		 10732void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10733 struct ieee80211_channel *chan,
10734 unsigned int duration, gfp_t gfp)
9588bbd5 10735{
947add36
JB		 10736 struct wiphy *wiphy = wdev->wiphy;
10737 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10738
10739 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10740 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10741 rdev, wdev, cookie, chan,
42d97a59 10742 duration, gfp);
9588bbd5 10743}
947add36 10744EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10745
947add36
JB		 10746void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10747 struct ieee80211_channel *chan,
10748 gfp_t gfp)
9588bbd5 10749{
947add36
JB		 10750 struct wiphy *wiphy = wdev->wiphy;
10751 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10752
10753 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10754 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10755 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10756}
947add36 10757EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10758
947add36
JB		 10759void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10760 struct station_info *sinfo, gfp_t gfp)
98b62183 10761{
947add36
JB		 10762 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10763 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 10764 struct sk_buff *msg;
10765
947add36
JB		 10766 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10767
58050fce 10768 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10769 if (!msg)
10770 return;
10771
66266b3a
JL		 10772 if (nl80211_send_station(msg, 0, 0, 0,
10773 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10774 nlmsg_free(msg);
10775 return;
10776 }
10777
68eb5503 10778 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10779 NL80211_MCGRP_MLME, gfp);
98b62183 10780}
947add36 10781EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10782
947add36 10783void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10784{
947add36
JB		 10785 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10786 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 10787 struct sk_buff *msg;
10788 void *hdr;
10789
947add36
JB		 10790 trace_cfg80211_del_sta(dev, mac_addr);
10791
58050fce 10792 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10793 if (!msg)
10794 return;
10795
10796 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10797 if (!hdr) {
10798 nlmsg_free(msg);
10799 return;
10800 }
10801
9360ffd1
DM		 10802 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10803 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10804 goto nla_put_failure;
ec15e68b 10805
3b7b72ee 10806 genlmsg_end(msg, hdr);
ec15e68b 10807
68eb5503 10808 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10809 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10810 return;
10811
10812 nla_put_failure:
10813 genlmsg_cancel(msg, hdr);
10814 nlmsg_free(msg);
10815}
947add36 10816EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10817
947add36
JB		 10818void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10819 enum nl80211_connect_failed_reason reason,
10820 gfp_t gfp)
ed44a951 10821{
947add36
JB		 10822 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10823 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 10824 struct sk_buff *msg;
10825 void *hdr;
10826
10827 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10828 if (!msg)
10829 return;
10830
10831 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10832 if (!hdr) {
10833 nlmsg_free(msg);
10834 return;
10835 }
10836
10837 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10838 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10839 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10840 goto nla_put_failure;
10841
10842 genlmsg_end(msg, hdr);
10843
68eb5503 10844 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10845 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10846 return;
10847
10848 nla_put_failure:
10849 genlmsg_cancel(msg, hdr);
10850 nlmsg_free(msg);
10851}
947add36 10852EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10853
b92ab5d8
JB		 10854static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10855 const u8 *addr, gfp_t gfp)
28946da7
JB		 10856{
10857 struct wireless_dev *wdev = dev->ieee80211_ptr;
10858 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10859 struct sk_buff *msg;
10860 void *hdr;
15e47304 10861 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10862
15e47304 10863 if (!nlportid)
28946da7
JB		 10864 return false;
10865
10866 msg = nlmsg_new(100, gfp);
10867 if (!msg)
10868 return true;
10869
b92ab5d8 10870 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10871 if (!hdr) {
10872 nlmsg_free(msg);
10873 return true;
10874 }
10875
9360ffd1
DM		 10876 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10877 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10878 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10879 goto nla_put_failure;
28946da7 10880
9c90a9f6 10881 genlmsg_end(msg, hdr);
15e47304 10882 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10883 return true;
10884
10885 nla_put_failure:
10886 genlmsg_cancel(msg, hdr);
10887 nlmsg_free(msg);
10888 return true;
10889}
10890
947add36
JB		 10891bool cfg80211_rx_spurious_frame(struct net_device *dev,
10892 const u8 *addr, gfp_t gfp)
b92ab5d8 10893{
947add36
JB		 10894 struct wireless_dev *wdev = dev->ieee80211_ptr;
10895 bool ret;
10896
10897 trace_cfg80211_rx_spurious_frame(dev, addr);
10898
10899 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10900 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10901 trace_cfg80211_return_bool(false);
10902 return false;
10903 }
10904 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10905 addr, gfp);
10906 trace_cfg80211_return_bool(ret);
10907 return ret;
b92ab5d8 10908}
947add36 10909EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10910
947add36
JB		 10911bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10912 const u8 *addr, gfp_t gfp)
b92ab5d8 10913{
947add36
JB		 10914 struct wireless_dev *wdev = dev->ieee80211_ptr;
10915 bool ret;
10916
10917 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10918
10919 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10920 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10921 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10922 trace_cfg80211_return_bool(false);
10923 return false;
10924 }
10925 ret = __nl80211_unexpected_frame(dev,
10926 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10927 addr, gfp);
10928 trace_cfg80211_return_bool(ret);
10929 return ret;
b92ab5d8 10930}
947add36 10931EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 10932
2e161f78 10933int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 10934 struct wireless_dev *wdev, u32 nlportid,
804483e9 10935 int freq, int sig_dbm,
19504cf5 10936 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 10937{
71bbc994 10938 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10939 struct sk_buff *msg;
10940 void *hdr;
026331c4
JM		 10941
10942 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10943 if (!msg)
10944 return -ENOMEM;
10945
2e161f78 10946 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 10947 if (!hdr) {
10948 nlmsg_free(msg);
10949 return -ENOMEM;
10950 }
10951
9360ffd1 10952 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10953 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10954 netdev->ifindex)) ||
a838490b 10955 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10956 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10957 (sig_dbm &&
10958 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 10959 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10960 (flags &&
10961 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 10962 goto nla_put_failure;
026331c4 10963
3b7b72ee 10964 genlmsg_end(msg, hdr);
026331c4 10965
15e47304 10966 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 10967
10968 nla_put_failure:
10969 genlmsg_cancel(msg, hdr);
10970 nlmsg_free(msg);
10971 return -ENOBUFS;
10972}
10973
947add36
JB		 10974void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10975 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 10976{
947add36
JB		 10977 struct wiphy *wiphy = wdev->wiphy;
10978 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 10979 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10980 struct sk_buff *msg;
10981 void *hdr;
10982
947add36
JB		 10983 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10984
026331c4
JM		 10985 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10986 if (!msg)
10987 return;
10988
2e161f78 10989 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 10990 if (!hdr) {
10991 nlmsg_free(msg);
10992 return;
10993 }
10994
9360ffd1 10995 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10996 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10997 netdev->ifindex)) ||
a838490b 10998 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10999 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11000 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11001 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11002 goto nla_put_failure;
026331c4 11003
3b7b72ee 11004 genlmsg_end(msg, hdr);
026331c4 11005
68eb5503 11006 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11007 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11008 return;
11009
11010 nla_put_failure:
11011 genlmsg_cancel(msg, hdr);
11012 nlmsg_free(msg);
11013}
947add36 11014EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11015
947add36
JB		 11016void cfg80211_cqm_rssi_notify(struct net_device *dev,
11017 enum nl80211_cqm_rssi_threshold_event rssi_event,
11018 gfp_t gfp)
d6dc1a38 11019{
947add36
JB		 11020 struct wireless_dev *wdev = dev->ieee80211_ptr;
11021 struct wiphy *wiphy = wdev->wiphy;
11022 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 11023 struct sk_buff *msg;
11024 struct nlattr *pinfoattr;
11025 void *hdr;
11026
947add36
JB		 11027 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11028
58050fce 11029 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11030 if (!msg)
11031 return;
11032
11033 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11034 if (!hdr) {
11035 nlmsg_free(msg);
11036 return;
11037 }
11038
9360ffd1 11039 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11040 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11041 goto nla_put_failure;
d6dc1a38
JO		 11042
11043 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11044 if (!pinfoattr)
11045 goto nla_put_failure;
11046
9360ffd1
DM		 11047 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11048 rssi_event))
11049 goto nla_put_failure;
d6dc1a38
JO		 11050
11051 nla_nest_end(msg, pinfoattr);
11052
3b7b72ee 11053 genlmsg_end(msg, hdr);
d6dc1a38 11054
68eb5503 11055 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11056 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11057 return;
11058
11059 nla_put_failure:
11060 genlmsg_cancel(msg, hdr);
11061 nlmsg_free(msg);
11062}
947add36 11063EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11064
947add36
JB		 11065static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11066 struct net_device *netdev, const u8 *bssid,
11067 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11068{
11069 struct sk_buff *msg;
11070 struct nlattr *rekey_attr;
11071 void *hdr;
11072
58050fce 11073 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11074 if (!msg)
11075 return;
11076
11077 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11078 if (!hdr) {
11079 nlmsg_free(msg);
11080 return;
11081 }
11082
9360ffd1
DM		 11083 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11084 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11085 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11086 goto nla_put_failure;
e5497d76
JB		 11087
11088 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11089 if (!rekey_attr)
11090 goto nla_put_failure;
11091
9360ffd1
DM		 11092 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11093 NL80211_REPLAY_CTR_LEN, replay_ctr))
11094 goto nla_put_failure;
e5497d76
JB		 11095
11096 nla_nest_end(msg, rekey_attr);
11097
3b7b72ee 11098 genlmsg_end(msg, hdr);
e5497d76 11099
68eb5503 11100 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11101 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11102 return;
11103
11104 nla_put_failure:
11105 genlmsg_cancel(msg, hdr);
11106 nlmsg_free(msg);
11107}
11108
947add36
JB		 11109void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11110 const u8 *replay_ctr, gfp_t gfp)
11111{
11112 struct wireless_dev *wdev = dev->ieee80211_ptr;
11113 struct wiphy *wiphy = wdev->wiphy;
11114 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11115
11116 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11117 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11118}
11119EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11120
11121static void
11122nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11123 struct net_device *netdev, int index,
11124 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11125{
11126 struct sk_buff *msg;
11127 struct nlattr *attr;
11128 void *hdr;
11129
58050fce 11130 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11131 if (!msg)
11132 return;
11133
11134 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11135 if (!hdr) {
11136 nlmsg_free(msg);
11137 return;
11138 }
11139
9360ffd1
DM		 11140 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11141 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11142 goto nla_put_failure;
c9df56b4
JM		 11143
11144 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11145 if (!attr)
11146 goto nla_put_failure;
11147
9360ffd1
DM		 11148 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11149 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11150 (preauth &&
11151 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11152 goto nla_put_failure;
c9df56b4
JM		 11153
11154 nla_nest_end(msg, attr);
11155
3b7b72ee 11156 genlmsg_end(msg, hdr);
c9df56b4 11157
68eb5503 11158 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11159 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11160 return;
11161
11162 nla_put_failure:
11163 genlmsg_cancel(msg, hdr);
11164 nlmsg_free(msg);
11165}
11166
947add36
JB		 11167void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11168 const u8 *bssid, bool preauth, gfp_t gfp)
11169{
11170 struct wireless_dev *wdev = dev->ieee80211_ptr;
11171 struct wiphy *wiphy = wdev->wiphy;
11172 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11173
11174 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11175 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11176}
11177EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11178
11179static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11180 struct net_device *netdev,
11181 struct cfg80211_chan_def *chandef,
11182 gfp_t gfp)
5314526b
TP		 11183{
11184 struct sk_buff *msg;
11185 void *hdr;
11186
58050fce 11187 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11188 if (!msg)
11189 return;
11190
11191 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11192 if (!hdr) {
11193 nlmsg_free(msg);
11194 return;
11195 }
11196
683b6d3b
JB		 11197 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11198 goto nla_put_failure;
11199
11200 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11201 goto nla_put_failure;
5314526b
TP		 11202
11203 genlmsg_end(msg, hdr);
11204
68eb5503 11205 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11206 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11207 return;
11208
11209 nla_put_failure:
11210 genlmsg_cancel(msg, hdr);
11211 nlmsg_free(msg);
11212}
11213
947add36
JB		 11214void cfg80211_ch_switch_notify(struct net_device *dev,
11215 struct cfg80211_chan_def *chandef)
84f10708 11216{
947add36
JB		 11217 struct wireless_dev *wdev = dev->ieee80211_ptr;
11218 struct wiphy *wiphy = wdev->wiphy;
11219 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11220
e487eaeb 11221 ASSERT_WDEV_LOCK(wdev);
947add36 11222
e487eaeb 11223 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11224
11225 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11226 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11227 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11228 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11229 return;
947add36 11230
9e0e2961 11231 wdev->chandef = *chandef;
96f55f12 11232 wdev->preset_chandef = *chandef;
947add36 11233 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11234}
11235EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11236
11237void cfg80211_cqm_txe_notify(struct net_device *dev,
11238 const u8 *peer, u32 num_packets,
11239 u32 rate, u32 intvl, gfp_t gfp)
11240{
11241 struct wireless_dev *wdev = dev->ieee80211_ptr;
11242 struct wiphy *wiphy = wdev->wiphy;
11243 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 11244 struct sk_buff *msg;
11245 struct nlattr *pinfoattr;
11246 void *hdr;
11247
11248 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11249 if (!msg)
11250 return;
11251
11252 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11253 if (!hdr) {
11254 nlmsg_free(msg);
11255 return;
11256 }
11257
11258 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11259 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11260 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11261 goto nla_put_failure;
11262
11263 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11264 if (!pinfoattr)
11265 goto nla_put_failure;
11266
11267 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11268 goto nla_put_failure;
11269
11270 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11271 goto nla_put_failure;
11272
11273 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11274 goto nla_put_failure;
11275
11276 nla_nest_end(msg, pinfoattr);
11277
11278 genlmsg_end(msg, hdr);
11279
68eb5503 11280 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11281 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11282 return;
11283
11284 nla_put_failure:
11285 genlmsg_cancel(msg, hdr);
11286 nlmsg_free(msg);
11287}
947add36 11288EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11289
04f39047
SW		 11290void
11291nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11292 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11293 enum nl80211_radar_event event,
11294 struct net_device *netdev, gfp_t gfp)
11295{
11296 struct sk_buff *msg;
11297 void *hdr;
11298
11299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11300 if (!msg)
11301 return;
11302
11303 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11304 if (!hdr) {
11305 nlmsg_free(msg);
11306 return;
11307 }
11308
11309 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11310 goto nla_put_failure;
11311
11312 /* NOP and radar events don't need a netdev parameter */
11313 if (netdev) {
11314 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11315
11316 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11317 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11318 goto nla_put_failure;
11319 }
11320
11321 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11322 goto nla_put_failure;
11323
11324 if (nl80211_send_chandef(msg, chandef))
11325 goto nla_put_failure;
11326
9c90a9f6 11327 genlmsg_end(msg, hdr);
04f39047 11328
68eb5503 11329 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11330 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11331 return;
11332
11333 nla_put_failure:
11334 genlmsg_cancel(msg, hdr);
11335 nlmsg_free(msg);
11336}
11337
947add36
JB		 11338void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11339 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11340{
947add36
JB		 11341 struct wireless_dev *wdev = dev->ieee80211_ptr;
11342 struct wiphy *wiphy = wdev->wiphy;
11343 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 11344 struct sk_buff *msg;
11345 struct nlattr *pinfoattr;
11346 void *hdr;
11347
947add36
JB		 11348 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11349
58050fce 11350 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11351 if (!msg)
11352 return;
11353
11354 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11355 if (!hdr) {
11356 nlmsg_free(msg);
11357 return;
11358 }
11359
9360ffd1 11360 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11361 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11362 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11363 goto nla_put_failure;
c063dbf5
JB		 11364
11365 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11366 if (!pinfoattr)
11367 goto nla_put_failure;
11368
9360ffd1
DM		 11369 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11370 goto nla_put_failure;
c063dbf5
JB		 11371
11372 nla_nest_end(msg, pinfoattr);
11373
3b7b72ee 11374 genlmsg_end(msg, hdr);
c063dbf5 11375
68eb5503 11376 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11377 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11378 return;
11379
11380 nla_put_failure:
11381 genlmsg_cancel(msg, hdr);
11382 nlmsg_free(msg);
11383}
947add36 11384EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11385
7f6cf311
JB		 11386void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11387 u64 cookie, bool acked, gfp_t gfp)
11388{
11389 struct wireless_dev *wdev = dev->ieee80211_ptr;
11390 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11391 struct sk_buff *msg;
11392 void *hdr;
7f6cf311 11393
4ee3e063
BL		 11394 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11395
58050fce 11396 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11397
7f6cf311
JB		 11398 if (!msg)
11399 return;
11400
11401 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11402 if (!hdr) {
11403 nlmsg_free(msg);
11404 return;
11405 }
11406
9360ffd1
DM		 11407 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11408 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11409 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11410 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11411 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11412 goto nla_put_failure;
7f6cf311 11413
9c90a9f6 11414 genlmsg_end(msg, hdr);
7f6cf311 11415
68eb5503 11416 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11417 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11418 return;
11419
11420 nla_put_failure:
11421 genlmsg_cancel(msg, hdr);
11422 nlmsg_free(msg);
11423}
11424EXPORT_SYMBOL(cfg80211_probe_status);
11425
5e760230
JB		 11426void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11427 const u8 *frame, size_t len,
37c73b5f 11428 int freq, int sig_dbm)
5e760230
JB		 11429{
11430 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11431 struct sk_buff *msg;
11432 void *hdr;
37c73b5f 11433 struct cfg80211_beacon_registration *reg;
5e760230 11434
4ee3e063
BL		 11435 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11436
37c73b5f
BG		 11437 spin_lock_bh(&rdev->beacon_registrations_lock);
11438 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11439 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11440 if (!msg) {
11441 spin_unlock_bh(&rdev->beacon_registrations_lock);
11442 return;
11443 }
5e760230 11444
37c73b5f
BG		 11445 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11446 if (!hdr)
11447 goto nla_put_failure;
5e760230 11448
37c73b5f
BG		 11449 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11450 (freq &&
11451 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11452 (sig_dbm &&
11453 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11454 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11455 goto nla_put_failure;
5e760230 11456
37c73b5f 11457 genlmsg_end(msg, hdr);
5e760230 11458
37c73b5f
BG		 11459 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11460 }
11461 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11462 return;
11463
11464 nla_put_failure:
37c73b5f
BG		 11465 spin_unlock_bh(&rdev->beacon_registrations_lock);
11466 if (hdr)
11467 genlmsg_cancel(msg, hdr);
5e760230
JB		 11468 nlmsg_free(msg);
11469}
11470EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11471
cd8f7cb4
JB		 11472#ifdef CONFIG_PM
11473void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11474 struct cfg80211_wowlan_wakeup *wakeup,
11475 gfp_t gfp)
11476{
11477 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11478 struct sk_buff *msg;
11479 void *hdr;
9c90a9f6 11480 int size = 200;
cd8f7cb4
JB		 11481
11482 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11483
11484 if (wakeup)
11485 size += wakeup->packet_present_len;
11486
11487 msg = nlmsg_new(size, gfp);
11488 if (!msg)
11489 return;
11490
11491 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11492 if (!hdr)
11493 goto free_msg;
11494
11495 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11496 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11497 goto free_msg;
11498
11499 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11500 wdev->netdev->ifindex))
11501 goto free_msg;
11502
11503 if (wakeup) {
11504 struct nlattr *reasons;
11505
11506 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11507 if (!reasons)
11508 goto free_msg;
cd8f7cb4
JB		 11509
11510 if (wakeup->disconnect &&
11511 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11512 goto free_msg;
11513 if (wakeup->magic_pkt &&
11514 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11515 goto free_msg;
11516 if (wakeup->gtk_rekey_failure &&
11517 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11518 goto free_msg;
11519 if (wakeup->eap_identity_req &&
11520 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11521 goto free_msg;
11522 if (wakeup->four_way_handshake &&
11523 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11524 goto free_msg;
11525 if (wakeup->rfkill_release &&
11526 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11527 goto free_msg;
11528
11529 if (wakeup->pattern_idx >= 0 &&
11530 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11531 wakeup->pattern_idx))
11532 goto free_msg;
11533
ae917c9f
JB		 11534 if (wakeup->tcp_match &&
11535 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11536 goto free_msg;
2a0e047e 11537
ae917c9f
JB		 11538 if (wakeup->tcp_connlost &&
11539 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11540 goto free_msg;
2a0e047e 11541
ae917c9f
JB		 11542 if (wakeup->tcp_nomoretokens &&
11543 nla_put_flag(msg,
11544 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11545 goto free_msg;
2a0e047e 11546
cd8f7cb4
JB		 11547 if (wakeup->packet) {
11548 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11549 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11550
11551 if (!wakeup->packet_80211) {
11552 pkt_attr =
11553 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11554 len_attr =
11555 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11556 }
11557
11558 if (wakeup->packet_len &&
11559 nla_put_u32(msg, len_attr, wakeup->packet_len))
11560 goto free_msg;
11561
11562 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11563 wakeup->packet))
11564 goto free_msg;
11565 }
11566
11567 nla_nest_end(msg, reasons);
11568 }
11569
9c90a9f6 11570 genlmsg_end(msg, hdr);
cd8f7cb4 11571
68eb5503 11572 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11573 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11574 return;
11575
11576 free_msg:
11577 nlmsg_free(msg);
11578}
11579EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11580#endif
11581
3475b094
JM		 11582void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11583 enum nl80211_tdls_operation oper,
11584 u16 reason_code, gfp_t gfp)
11585{
11586 struct wireless_dev *wdev = dev->ieee80211_ptr;
11587 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11588 struct sk_buff *msg;
11589 void *hdr;
3475b094
JM		 11590
11591 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11592 reason_code);
11593
11594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11595 if (!msg)
11596 return;
11597
11598 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11599 if (!hdr) {
11600 nlmsg_free(msg);
11601 return;
11602 }
11603
11604 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11605 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11606 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11607 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11608 (reason_code > 0 &&
11609 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11610 goto nla_put_failure;
11611
9c90a9f6 11612 genlmsg_end(msg, hdr);
3475b094 11613
68eb5503 11614 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11615 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11616 return;
11617
11618 nla_put_failure:
11619 genlmsg_cancel(msg, hdr);
11620 nlmsg_free(msg);
11621}
11622EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11623
026331c4
JM		 11624static int nl80211_netlink_notify(struct notifier_block * nb,
11625 unsigned long state,
11626 void *_notify)
11627{
11628 struct netlink_notify *notify = _notify;
11629 struct cfg80211_registered_device *rdev;
11630 struct wireless_dev *wdev;
37c73b5f 11631 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11632
11633 if (state != NETLINK_URELEASE)
11634 return NOTIFY_DONE;
11635
11636 rcu_read_lock();
11637
5e760230 11638 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 11639 bool schedule_destroy_work = false;
11640
11641 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 11642 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 11643
78f22b6a
JB		 11644 if (wdev->owner_nlportid == notify->portid)
11645 schedule_destroy_work = true;
11646 }
11647
37c73b5f
BG		 11648 spin_lock_bh(&rdev->beacon_registrations_lock);
11649 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11650 list) {
11651 if (reg->nlportid == notify->portid) {
11652 list_del(&reg->list);
11653 kfree(reg);
11654 break;
11655 }
11656 }
11657 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 11658
11659 if (schedule_destroy_work) {
11660 struct cfg80211_iface_destroy *destroy;
11661
11662 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11663 if (destroy) {
11664 destroy->nlportid = notify->portid;
11665 spin_lock(&rdev->destroy_list_lock);
11666 list_add(&destroy->list, &rdev->destroy_list);
11667 spin_unlock(&rdev->destroy_list_lock);
11668 schedule_work(&rdev->destroy_work);
11669 }
11670 }
5e760230 11671 }
026331c4
JM		 11672
11673 rcu_read_unlock();
11674
11675 return NOTIFY_DONE;
11676}
11677
11678static struct notifier_block nl80211_netlink_notifier = {
11679 .notifier_call = nl80211_netlink_notify,
11680};
11681
355199e0
JM		 11682void cfg80211_ft_event(struct net_device *netdev,
11683 struct cfg80211_ft_event_params *ft_event)
11684{
11685 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11686 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11687 struct sk_buff *msg;
11688 void *hdr;
355199e0
JM		 11689
11690 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11691
11692 if (!ft_event->target_ap)
11693 return;
11694
11695 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11696 if (!msg)
11697 return;
11698
11699 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11700 if (!hdr)
11701 goto out;
355199e0 11702
ae917c9f
JB		 11703 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11704 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11705 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11706 goto out;
355199e0 11707
ae917c9f
JB		 11708 if (ft_event->ies &&
11709 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11710 goto out;
11711 if (ft_event->ric_ies &&
11712 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11713 ft_event->ric_ies))
11714 goto out;
355199e0 11715
9c90a9f6 11716 genlmsg_end(msg, hdr);
355199e0 11717
68eb5503 11718 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11719 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11720 return;
11721 out:
11722 nlmsg_free(msg);
355199e0
JM		 11723}
11724EXPORT_SYMBOL(cfg80211_ft_event);
11725
5de17984
AS		 11726void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11727{
11728 struct cfg80211_registered_device *rdev;
11729 struct sk_buff *msg;
11730 void *hdr;
11731 u32 nlportid;
11732
11733 rdev = wiphy_to_dev(wdev->wiphy);
11734 if (!rdev->crit_proto_nlportid)
11735 return;
11736
11737 nlportid = rdev->crit_proto_nlportid;
11738 rdev->crit_proto_nlportid = 0;
11739
11740 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11741 if (!msg)
11742 return;
11743
11744 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11745 if (!hdr)
11746 goto nla_put_failure;
11747
11748 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11749 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11750 goto nla_put_failure;
11751
11752 genlmsg_end(msg, hdr);
11753
11754 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11755 return;
11756
11757 nla_put_failure:
11758 if (hdr)
11759 genlmsg_cancel(msg, hdr);
11760 nlmsg_free(msg);
11761
11762}
11763EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11764
348baf0e
JB		 11765void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11766{
11767 struct wiphy *wiphy = wdev->wiphy;
11768 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11769 struct sk_buff *msg;
11770 void *hdr;
11771
11772 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11773 if (!msg)
11774 return;
11775
11776 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11777 if (!hdr)
11778 goto out;
11779
11780 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11781 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11782 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11783 goto out;
11784
11785 genlmsg_end(msg, hdr);
11786
11787 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11788 NL80211_MCGRP_MLME, GFP_KERNEL);
11789 return;
11790 out:
11791 nlmsg_free(msg);
11792}
11793
55682965
JB		 11794/* initialisation/exit functions */
11795
11796int nl80211_init(void)
11797{
0d63cbb5 11798 int err;
55682965 11799
2a94fe48
JB		 11800 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11801 nl80211_mcgrps);
55682965
JB		 11802 if (err)
11803 return err;
11804
026331c4
JM		 11805 err = netlink_register_notifier(&nl80211_netlink_notifier);
11806 if (err)
11807 goto err_out;
11808
55682965
JB		 11809 return 0;
11810 err_out:
11811 genl_unregister_family(&nl80211_fam);
11812 return err;
11813}
11814
11815void nl80211_exit(void)
11816{
026331c4 11817 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11818 genl_unregister_family(&nl80211_fam);
11819}
Linux kernel - Deliverables
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