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mac80211: fix the increment of mesh precedence value
[mirror_ubuntu-bionic-kernel.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 },
55682965
JB		 387};
388
e31b8213 389/* policy for the key attributes */
b54452b0 390static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 391 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 392 [NL80211_KEY_IDX] = { .type = NLA_U8 },
393 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 394 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 395 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
396 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 397 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 398 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
399};
400
401/* policy for the key default flags */
402static const struct nla_policy
403nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
404 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
405 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 406};
407
ff1b6e69
JB		 408/* policy for WoWLAN attributes */
409static const struct nla_policy
410nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
411 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
412 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
413 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
414 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 415 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
417 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
418 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 419 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
420};
421
422static const struct nla_policy
423nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
424 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
425 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
426 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
427 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
428 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
429 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
430 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
431 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
432 },
433 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
434 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
435 },
436 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
437 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
438 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 439};
440
be29b99a
AK		 441/* policy for coalesce rule attributes */
442static const struct nla_policy
443nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
444 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
445 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
446 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
447};
448
e5497d76
JB		 449/* policy for GTK rekey offload attributes */
450static const struct nla_policy
451nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
452 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
453 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
454 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
455};
456
a1f1c21c
LC		 457static const struct nla_policy
458nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 459 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 460 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 461 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 462};
463
97990a06
JB		 464static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
465 struct netlink_callback *cb,
466 struct cfg80211_registered_device **rdev,
467 struct wireless_dev **wdev)
a043897a 468{
97990a06 469 int err;
a043897a 470
97990a06 471 rtnl_lock();
a043897a 472
97990a06
JB		 473 if (!cb->args[0]) {
474 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
475 nl80211_fam.attrbuf, nl80211_fam.maxattr,
476 nl80211_policy);
477 if (err)
478 goto out_unlock;
67748893 479
97990a06
JB		 480 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
481 nl80211_fam.attrbuf);
482 if (IS_ERR(*wdev)) {
483 err = PTR_ERR(*wdev);
484 goto out_unlock;
485 }
486 *rdev = wiphy_to_dev((*wdev)->wiphy);
c319d50b
JB		 487 /* 0 is the first index - add 1 to parse only once */
488 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 489 cb->args[1] = (*wdev)->identifier;
490 } else {
c319d50b
JB		 491 /* subtract the 1 again here */
492 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 493 struct wireless_dev *tmp;
67748893 494
97990a06
JB		 495 if (!wiphy) {
496 err = -ENODEV;
497 goto out_unlock;
498 }
499 *rdev = wiphy_to_dev(wiphy);
500 *wdev = NULL;
67748893 501
97990a06
JB		 502 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
503 if (tmp->identifier == cb->args[1]) {
504 *wdev = tmp;
505 break;
506 }
507 }
67748893 508
97990a06
JB		 509 if (!*wdev) {
510 err = -ENODEV;
511 goto out_unlock;
512 }
67748893
JB		 513 }
514
67748893 515 return 0;
97990a06 516 out_unlock:
67748893
JB		 517 rtnl_unlock();
518 return err;
519}
520
97990a06 521static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 522{
67748893
JB		 523 rtnl_unlock();
524}
525
f4a11bb0
JB		 526/* IE validation */
527static bool is_valid_ie_attr(const struct nlattr *attr)
528{
529 const u8 *pos;
530 int len;
531
532 if (!attr)
533 return true;
534
535 pos = nla_data(attr);
536 len = nla_len(attr);
537
538 while (len) {
539 u8 elemlen;
540
541 if (len < 2)
542 return false;
543 len -= 2;
544
545 elemlen = pos[1];
546 if (elemlen > len)
547 return false;
548
549 len -= elemlen;
550 pos += 2 + elemlen;
551 }
552
553 return true;
554}
555
55682965 556/* message building helper */
15e47304 557static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 558 int flags, u8 cmd)
559{
560 /* since there is no private header just add the generic one */
15e47304 561 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 562}
563
5dab3b8a 564static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 565 struct ieee80211_channel *chan,
566 bool large)
5dab3b8a 567{
9360ffd1
DM		 568 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
569 chan->center_freq))
570 goto nla_put_failure;
5dab3b8a 571
9360ffd1
DM		 572 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
573 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
574 goto nla_put_failure;
8fe02e16
LR		 575 if (chan->flags & IEEE80211_CHAN_NO_IR) {
576 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
577 goto nla_put_failure;
578 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
579 goto nla_put_failure;
580 }
cdc89b97
JB		 581 if (chan->flags & IEEE80211_CHAN_RADAR) {
582 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
583 goto nla_put_failure;
584 if (large) {
585 u32 time;
586
587 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
588
589 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
590 chan->dfs_state))
591 goto nla_put_failure;
592 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
593 time))
594 goto nla_put_failure;
595 }
596 }
5dab3b8a 597
fe1abafd
JB		 598 if (large) {
599 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
600 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
601 goto nla_put_failure;
602 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
603 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
604 goto nla_put_failure;
605 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
606 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
607 goto nla_put_failure;
608 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
609 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
610 goto nla_put_failure;
611 }
612
9360ffd1
DM		 613 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
614 DBM_TO_MBM(chan->max_power)))
615 goto nla_put_failure;
5dab3b8a
LR		 616
617 return 0;
618
619 nla_put_failure:
620 return -ENOBUFS;
621}
622
55682965
JB		 623/* netlink command implementations */
624
b9454e83
JB		 625struct key_parse {
626 struct key_params p;
627 int idx;
e31b8213 628 int type;
b9454e83 629 bool def, defmgmt;
dbd2fd65 630 bool def_uni, def_multi;
b9454e83
JB		 631};
632
633static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
634{
635 struct nlattr *tb[NL80211_KEY_MAX + 1];
636 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
637 nl80211_key_policy);
638 if (err)
639 return err;
640
641 k->def = !!tb[NL80211_KEY_DEFAULT];
642 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
643
dbd2fd65
JB		 644 if (k->def) {
645 k->def_uni = true;
646 k->def_multi = true;
647 }
648 if (k->defmgmt)
649 k->def_multi = true;
650
b9454e83
JB		 651 if (tb[NL80211_KEY_IDX])
652 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
653
654 if (tb[NL80211_KEY_DATA]) {
655 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
656 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
657 }
658
659 if (tb[NL80211_KEY_SEQ]) {
660 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
661 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
662 }
663
664 if (tb[NL80211_KEY_CIPHER])
665 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
666
e31b8213
JB		 667 if (tb[NL80211_KEY_TYPE]) {
668 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
669 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
670 return -EINVAL;
671 }
672
dbd2fd65
JB		 673 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
674 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 675 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
676 tb[NL80211_KEY_DEFAULT_TYPES],
677 nl80211_key_default_policy);
dbd2fd65
JB		 678 if (err)
679 return err;
680
681 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
682 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
683 }
684
b9454e83
JB		 685 return 0;
686}
687
688static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
689{
690 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
691 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
692 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
693 }
694
695 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
696 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
697 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
698 }
699
700 if (info->attrs[NL80211_ATTR_KEY_IDX])
701 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
702
703 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
704 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
705
706 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
707 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
708
dbd2fd65
JB		 709 if (k->def) {
710 k->def_uni = true;
711 k->def_multi = true;
712 }
713 if (k->defmgmt)
714 k->def_multi = true;
715
e31b8213
JB		 716 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
717 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
718 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
719 return -EINVAL;
720 }
721
dbd2fd65
JB		 722 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
723 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
724 int err = nla_parse_nested(
725 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
726 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
727 nl80211_key_default_policy);
728 if (err)
729 return err;
730
731 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
732 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
733 }
734
b9454e83
JB		 735 return 0;
736}
737
738static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
739{
740 int err;
741
742 memset(k, 0, sizeof(*k));
743 k->idx = -1;
e31b8213 744 k->type = -1;
b9454e83
JB		 745
746 if (info->attrs[NL80211_ATTR_KEY])
747 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
748 else
749 err = nl80211_parse_key_old(info, k);
750
751 if (err)
752 return err;
753
754 if (k->def && k->defmgmt)
755 return -EINVAL;
756
dbd2fd65
JB		 757 if (k->defmgmt) {
758 if (k->def_uni || !k->def_multi)
759 return -EINVAL;
760 }
761
b9454e83
JB		 762 if (k->idx != -1) {
763 if (k->defmgmt) {
764 if (k->idx < 4 || k->idx > 5)
765 return -EINVAL;
766 } else if (k->def) {
767 if (k->idx < 0 || k->idx > 3)
768 return -EINVAL;
769 } else {
770 if (k->idx < 0 || k->idx > 5)
771 return -EINVAL;
772 }
773 }
774
775 return 0;
776}
777
fffd0934
JB		 778static struct cfg80211_cached_keys *
779nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 780 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 781{
782 struct key_parse parse;
783 struct nlattr *key;
784 struct cfg80211_cached_keys *result;
785 int rem, err, def = 0;
786
787 result = kzalloc(sizeof(*result), GFP_KERNEL);
788 if (!result)
789 return ERR_PTR(-ENOMEM);
790
791 result->def = -1;
792 result->defmgmt = -1;
793
794 nla_for_each_nested(key, keys, rem) {
795 memset(&parse, 0, sizeof(parse));
796 parse.idx = -1;
797
798 err = nl80211_parse_key_new(key, &parse);
799 if (err)
800 goto error;
801 err = -EINVAL;
802 if (!parse.p.key)
803 goto error;
804 if (parse.idx < 0 || parse.idx > 4)
805 goto error;
806 if (parse.def) {
807 if (def)
808 goto error;
809 def = 1;
810 result->def = parse.idx;
dbd2fd65
JB		 811 if (!parse.def_uni || !parse.def_multi)
812 goto error;
fffd0934
JB		 813 } else if (parse.defmgmt)
814 goto error;
815 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 816 parse.idx, false, NULL);
fffd0934
JB		 817 if (err)
818 goto error;
819 result->params[parse.idx].cipher = parse.p.cipher;
820 result->params[parse.idx].key_len = parse.p.key_len;
821 result->params[parse.idx].key = result->data[parse.idx];
822 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 823
824 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
825 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
826 if (no_ht)
827 *no_ht = true;
828 }
fffd0934
JB		 829 }
830
831 return result;
832 error:
833 kfree(result);
834 return ERR_PTR(err);
835}
836
837static int nl80211_key_allowed(struct wireless_dev *wdev)
838{
839 ASSERT_WDEV_LOCK(wdev);
840
fffd0934
JB		 841 switch (wdev->iftype) {
842 case NL80211_IFTYPE_AP:
843 case NL80211_IFTYPE_AP_VLAN:
074ac8df 844 case NL80211_IFTYPE_P2P_GO:
ff973af7 845 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 846 break;
847 case NL80211_IFTYPE_ADHOC:
fffd0934 848 case NL80211_IFTYPE_STATION:
074ac8df 849 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 850 if (!wdev->current_bss)
fffd0934
JB		 851 return -ENOLINK;
852 break;
853 default:
854 return -EINVAL;
855 }
856
857 return 0;
858}
859
664834de
JM		 860static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
861 struct nlattr *tb)
862{
863 struct ieee80211_channel *chan;
864
865 if (tb == NULL)
866 return NULL;
867 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
868 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
869 return NULL;
870 return chan;
871}
872
7527a782
JB		 873static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
874{
875 struct nlattr *nl_modes = nla_nest_start(msg, attr);
876 int i;
877
878 if (!nl_modes)
879 goto nla_put_failure;
880
881 i = 0;
882 while (ifmodes) {
9360ffd1
DM		 883 if ((ifmodes & 1) && nla_put_flag(msg, i))
884 goto nla_put_failure;
7527a782
JB		 885 ifmodes >>= 1;
886 i++;
887 }
888
889 nla_nest_end(msg, nl_modes);
890 return 0;
891
892nla_put_failure:
893 return -ENOBUFS;
894}
895
896static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 897 struct sk_buff *msg,
898 bool large)
7527a782
JB		 899{
900 struct nlattr *nl_combis;
901 int i, j;
902
903 nl_combis = nla_nest_start(msg,
904 NL80211_ATTR_INTERFACE_COMBINATIONS);
905 if (!nl_combis)
906 goto nla_put_failure;
907
908 for (i = 0; i < wiphy->n_iface_combinations; i++) {
909 const struct ieee80211_iface_combination *c;
910 struct nlattr *nl_combi, *nl_limits;
911
912 c = &wiphy->iface_combinations[i];
913
914 nl_combi = nla_nest_start(msg, i + 1);
915 if (!nl_combi)
916 goto nla_put_failure;
917
918 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
919 if (!nl_limits)
920 goto nla_put_failure;
921
922 for (j = 0; j < c->n_limits; j++) {
923 struct nlattr *nl_limit;
924
925 nl_limit = nla_nest_start(msg, j + 1);
926 if (!nl_limit)
927 goto nla_put_failure;
9360ffd1
DM		 928 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
929 c->limits[j].max))
930 goto nla_put_failure;
7527a782
JB		 931 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
932 c->limits[j].types))
933 goto nla_put_failure;
934 nla_nest_end(msg, nl_limit);
935 }
936
937 nla_nest_end(msg, nl_limits);
938
9360ffd1
DM		 939 if (c->beacon_int_infra_match &&
940 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
941 goto nla_put_failure;
942 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
943 c->num_different_channels) ||
944 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
945 c->max_interfaces))
946 goto nla_put_failure;
cdc89b97
JB		 947 if (large &&
948 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
949 c->radar_detect_widths))
950 goto nla_put_failure;
7527a782
JB		 951
952 nla_nest_end(msg, nl_combi);
953 }
954
955 nla_nest_end(msg, nl_combis);
956
957 return 0;
958nla_put_failure:
959 return -ENOBUFS;
960}
961
3713b4e3 962#ifdef CONFIG_PM
b56cf720
JB		 963static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
964 struct sk_buff *msg)
965{
964dc9e2 966 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 967 struct nlattr *nl_tcp;
968
969 if (!tcp)
970 return 0;
971
972 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
973 if (!nl_tcp)
974 return -ENOBUFS;
975
976 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
977 tcp->data_payload_max))
978 return -ENOBUFS;
979
980 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
981 tcp->data_payload_max))
982 return -ENOBUFS;
983
984 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
985 return -ENOBUFS;
986
987 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
988 sizeof(*tcp->tok), tcp->tok))
989 return -ENOBUFS;
990
991 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
992 tcp->data_interval_max))
993 return -ENOBUFS;
994
995 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
996 tcp->wake_payload_max))
997 return -ENOBUFS;
998
999 nla_nest_end(msg, nl_tcp);
1000 return 0;
1001}
1002
3713b4e3 1003static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 1004 struct cfg80211_registered_device *dev,
1005 bool large)
55682965 1006{
3713b4e3 1007 struct nlattr *nl_wowlan;
55682965 1008
964dc9e2 1009 if (!dev->wiphy.wowlan)
3713b4e3 1010 return 0;
55682965 1011
3713b4e3
JB		 1012 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1013 if (!nl_wowlan)
1014 return -ENOBUFS;
9360ffd1 1015
964dc9e2 1016 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1017 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
964dc9e2 1018 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1019 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
964dc9e2 1020 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1021 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
964dc9e2 1022 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1023 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
964dc9e2 1024 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1025 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
964dc9e2 1026 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1027 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
964dc9e2 1028 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1029 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
964dc9e2 1030 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1031 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1032 return -ENOBUFS;
9360ffd1 1033
964dc9e2 1034 if (dev->wiphy.wowlan->n_patterns) {
50ac6607 1035 struct nl80211_pattern_support pat = {
964dc9e2
JB		 1036 .max_patterns = dev->wiphy.wowlan->n_patterns,
1037 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
1038 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
1039 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1040 };
9360ffd1 1041
3713b4e3
JB		 1042 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1043 sizeof(pat), &pat))
1044 return -ENOBUFS;
1045 }
9360ffd1 1046
b56cf720
JB		 1047 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1048 return -ENOBUFS;
1049
3713b4e3 1050 nla_nest_end(msg, nl_wowlan);
9360ffd1 1051
3713b4e3
JB		 1052 return 0;
1053}
1054#endif
9360ffd1 1055
be29b99a
AK		 1056static int nl80211_send_coalesce(struct sk_buff *msg,
1057 struct cfg80211_registered_device *dev)
1058{
1059 struct nl80211_coalesce_rule_support rule;
1060
1061 if (!dev->wiphy.coalesce)
1062 return 0;
1063
1064 rule.max_rules = dev->wiphy.coalesce->n_rules;
1065 rule.max_delay = dev->wiphy.coalesce->max_delay;
1066 rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
1067 rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
1068 rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
1069 rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
1070
1071 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1072 return -ENOBUFS;
1073
1074 return 0;
1075}
1076
3713b4e3
JB		 1077static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1078 struct ieee80211_supported_band *sband)
1079{
1080 struct nlattr *nl_rates, *nl_rate;
1081 struct ieee80211_rate *rate;
1082 int i;
87bbbe22 1083
3713b4e3
JB		 1084 /* add HT info */
1085 if (sband->ht_cap.ht_supported &&
1086 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1087 sizeof(sband->ht_cap.mcs),
1088 &sband->ht_cap.mcs) ||
1089 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1090 sband->ht_cap.cap) ||
1091 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1092 sband->ht_cap.ampdu_factor) ||
1093 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1094 sband->ht_cap.ampdu_density)))
1095 return -ENOBUFS;
afe0cbf8 1096
3713b4e3
JB		 1097 /* add VHT info */
1098 if (sband->vht_cap.vht_supported &&
1099 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1100 sizeof(sband->vht_cap.vht_mcs),
1101 &sband->vht_cap.vht_mcs) ||
1102 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1103 sband->vht_cap.cap)))
1104 return -ENOBUFS;
f59ac048 1105
3713b4e3
JB		 1106 /* add bitrates */
1107 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1108 if (!nl_rates)
1109 return -ENOBUFS;
ee688b00 1110
3713b4e3
JB		 1111 for (i = 0; i < sband->n_bitrates; i++) {
1112 nl_rate = nla_nest_start(msg, i);
1113 if (!nl_rate)
1114 return -ENOBUFS;
ee688b00 1115
3713b4e3
JB		 1116 rate = &sband->bitrates[i];
1117 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1118 rate->bitrate))
1119 return -ENOBUFS;
1120 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1121 nla_put_flag(msg,
1122 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1123 return -ENOBUFS;
ee688b00 1124
3713b4e3
JB		 1125 nla_nest_end(msg, nl_rate);
1126 }
d51626df 1127
3713b4e3 1128 nla_nest_end(msg, nl_rates);
bf0c111e 1129
3713b4e3
JB		 1130 return 0;
1131}
ee688b00 1132
3713b4e3
JB		 1133static int
1134nl80211_send_mgmt_stypes(struct sk_buff *msg,
1135 const struct ieee80211_txrx_stypes *mgmt_stypes)
1136{
1137 u16 stypes;
1138 struct nlattr *nl_ftypes, *nl_ifs;
1139 enum nl80211_iftype ift;
1140 int i;
ee688b00 1141
3713b4e3
JB		 1142 if (!mgmt_stypes)
1143 return 0;
5dab3b8a 1144
3713b4e3
JB		 1145 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1146 if (!nl_ifs)
1147 return -ENOBUFS;
e2f367f2 1148
3713b4e3
JB		 1149 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1150 nl_ftypes = nla_nest_start(msg, ift);
1151 if (!nl_ftypes)
1152 return -ENOBUFS;
1153 i = 0;
1154 stypes = mgmt_stypes[ift].tx;
1155 while (stypes) {
1156 if ((stypes & 1) &&
1157 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1158 (i << 4) | IEEE80211_FTYPE_MGMT))
1159 return -ENOBUFS;
1160 stypes >>= 1;
1161 i++;
ee688b00 1162 }
3713b4e3
JB		 1163 nla_nest_end(msg, nl_ftypes);
1164 }
ee688b00 1165
3713b4e3 1166 nla_nest_end(msg, nl_ifs);
ee688b00 1167
3713b4e3
JB		 1168 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1169 if (!nl_ifs)
1170 return -ENOBUFS;
ee688b00 1171
3713b4e3
JB		 1172 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1173 nl_ftypes = nla_nest_start(msg, ift);
1174 if (!nl_ftypes)
1175 return -ENOBUFS;
1176 i = 0;
1177 stypes = mgmt_stypes[ift].rx;
1178 while (stypes) {
1179 if ((stypes & 1) &&
1180 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1181 (i << 4) | IEEE80211_FTYPE_MGMT))
1182 return -ENOBUFS;
1183 stypes >>= 1;
1184 i++;
1185 }
1186 nla_nest_end(msg, nl_ftypes);
1187 }
1188 nla_nest_end(msg, nl_ifs);
ee688b00 1189
3713b4e3
JB		 1190 return 0;
1191}
ee688b00 1192
86e8cf98
JB		 1193struct nl80211_dump_wiphy_state {
1194 s64 filter_wiphy;
1195 long start;
1196 long split_start, band_start, chan_start;
1197 bool split;
1198};
1199
3713b4e3
JB		 1200static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1201 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1202 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1203{
1204 void *hdr;
1205 struct nlattr *nl_bands, *nl_band;
1206 struct nlattr *nl_freqs, *nl_freq;
1207 struct nlattr *nl_cmds;
1208 enum ieee80211_band band;
1209 struct ieee80211_channel *chan;
1210 int i;
1211 const struct ieee80211_txrx_stypes *mgmt_stypes =
1212 dev->wiphy.mgmt_stypes;
fe1abafd 1213 u32 features;
ee688b00 1214
3713b4e3
JB		 1215 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1216 if (!hdr)
1217 return -ENOBUFS;
ee688b00 1218
86e8cf98
JB		 1219 if (WARN_ON(!state))
1220 return -EINVAL;
ee688b00 1221
3713b4e3
JB		 1222 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1223 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1224 wiphy_name(&dev->wiphy)) ||
1225 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1226 cfg80211_rdev_list_generation))
8fdc621d
JB		 1227 goto nla_put_failure;
1228
86e8cf98 1229 switch (state->split_start) {
3713b4e3
JB		 1230 case 0:
1231 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1232 dev->wiphy.retry_short) ||
1233 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1234 dev->wiphy.retry_long) ||
1235 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1236 dev->wiphy.frag_threshold) ||
1237 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1238 dev->wiphy.rts_threshold) ||
1239 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1240 dev->wiphy.coverage_class) ||
1241 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1242 dev->wiphy.max_scan_ssids) ||
1243 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1244 dev->wiphy.max_sched_scan_ssids) ||
1245 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1246 dev->wiphy.max_scan_ie_len) ||
1247 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1248 dev->wiphy.max_sched_scan_ie_len) ||
1249 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1250 dev->wiphy.max_match_sets))
9360ffd1 1251 goto nla_put_failure;
3713b4e3
JB		 1252
1253 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1254 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1255 goto nla_put_failure;
3713b4e3
JB		 1256 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1257 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1258 goto nla_put_failure;
1259 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1260 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1261 goto nla_put_failure;
1262 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1263 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1264 goto nla_put_failure;
1265 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1266 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1267 goto nla_put_failure;
1268 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1269 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1270 goto nla_put_failure;
86e8cf98
JB		 1271 state->split_start++;
1272 if (state->split)
3713b4e3
JB		 1273 break;
1274 case 1:
1275 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1276 sizeof(u32) * dev->wiphy.n_cipher_suites,
1277 dev->wiphy.cipher_suites))
1278 goto nla_put_failure;
4745fc09 1279
3713b4e3
JB		 1280 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1281 dev->wiphy.max_num_pmkids))
1282 goto nla_put_failure;
b23aa676 1283
3713b4e3
JB		 1284 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1285 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1286 goto nla_put_failure;
b23aa676 1287
3713b4e3
JB		 1288 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1289 dev->wiphy.available_antennas_tx) ||
1290 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1291 dev->wiphy.available_antennas_rx))
9360ffd1 1292 goto nla_put_failure;
b23aa676 1293
3713b4e3
JB		 1294 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1295 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1296 dev->wiphy.probe_resp_offload))
1297 goto nla_put_failure;
8fdc621d 1298
3713b4e3
JB		 1299 if ((dev->wiphy.available_antennas_tx ||
1300 dev->wiphy.available_antennas_rx) &&
1301 dev->ops->get_antenna) {
1302 u32 tx_ant = 0, rx_ant = 0;
1303 int res;
1304 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1305 if (!res) {
1306 if (nla_put_u32(msg,
1307 NL80211_ATTR_WIPHY_ANTENNA_TX,
1308 tx_ant) ||
1309 nla_put_u32(msg,
1310 NL80211_ATTR_WIPHY_ANTENNA_RX,
1311 rx_ant))
1312 goto nla_put_failure;
1313 }
1314 }
a293911d 1315
86e8cf98
JB		 1316 state->split_start++;
1317 if (state->split)
3713b4e3
JB		 1318 break;
1319 case 2:
1320 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1321 dev->wiphy.interface_modes))
1322 goto nla_put_failure;
86e8cf98
JB		 1323 state->split_start++;
1324 if (state->split)
3713b4e3
JB		 1325 break;
1326 case 3:
1327 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1328 if (!nl_bands)
1329 goto nla_put_failure;
f7ca38df 1330
86e8cf98
JB		 1331 for (band = state->band_start;
1332 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1333 struct ieee80211_supported_band *sband;
2e161f78 1334
3713b4e3 1335 sband = dev->wiphy.bands[band];
2e161f78 1336
3713b4e3
JB		 1337 if (!sband)
1338 continue;
1339
1340 nl_band = nla_nest_start(msg, band);
1341 if (!nl_band)
2e161f78 1342 goto nla_put_failure;
3713b4e3 1343
86e8cf98 1344 switch (state->chan_start) {
3713b4e3
JB		 1345 case 0:
1346 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1347 goto nla_put_failure;
86e8cf98
JB		 1348 state->chan_start++;
1349 if (state->split)
3713b4e3
JB		 1350 break;
1351 default:
1352 /* add frequencies */
1353 nl_freqs = nla_nest_start(
1354 msg, NL80211_BAND_ATTR_FREQS);
1355 if (!nl_freqs)
1356 goto nla_put_failure;
1357
86e8cf98 1358 for (i = state->chan_start - 1;
3713b4e3
JB		 1359 i < sband->n_channels;
1360 i++) {
1361 nl_freq = nla_nest_start(msg, i);
1362 if (!nl_freq)
1363 goto nla_put_failure;
1364
1365 chan = &sband->channels[i];
1366
86e8cf98
JB		 1367 if (nl80211_msg_put_channel(
1368 msg, chan,
1369 state->split))
3713b4e3
JB		 1370 goto nla_put_failure;
1371
1372 nla_nest_end(msg, nl_freq);
86e8cf98 1373 if (state->split)
3713b4e3
JB		 1374 break;
1375 }
1376 if (i < sband->n_channels)
86e8cf98 1377 state->chan_start = i + 2;
3713b4e3 1378 else
86e8cf98 1379 state->chan_start = 0;
3713b4e3
JB		 1380 nla_nest_end(msg, nl_freqs);
1381 }
1382
1383 nla_nest_end(msg, nl_band);
1384
86e8cf98 1385 if (state->split) {
3713b4e3 1386 /* start again here */
86e8cf98 1387 if (state->chan_start)
3713b4e3
JB		 1388 band--;
1389 break;
2e161f78 1390 }
2e161f78 1391 }
3713b4e3 1392 nla_nest_end(msg, nl_bands);
2e161f78 1393
3713b4e3 1394 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1395 state->band_start = band + 1;
3713b4e3 1396 else
86e8cf98 1397 state->band_start = 0;
74b70a4e 1398
3713b4e3 1399 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1400 if (state->band_start == 0 && state->chan_start == 0)
1401 state->split_start++;
1402 if (state->split)
3713b4e3
JB		 1403 break;
1404 case 4:
1405 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1406 if (!nl_cmds)
2e161f78
JB		 1407 goto nla_put_failure;
1408
3713b4e3
JB		 1409 i = 0;
1410#define CMD(op, n) \
1411 do { \
1412 if (dev->ops->op) { \
1413 i++; \
1414 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1415 goto nla_put_failure; \
1416 } \
1417 } while (0)
1418
1419 CMD(add_virtual_intf, NEW_INTERFACE);
1420 CMD(change_virtual_intf, SET_INTERFACE);
1421 CMD(add_key, NEW_KEY);
1422 CMD(start_ap, START_AP);
1423 CMD(add_station, NEW_STATION);
1424 CMD(add_mpath, NEW_MPATH);
1425 CMD(update_mesh_config, SET_MESH_CONFIG);
1426 CMD(change_bss, SET_BSS);
1427 CMD(auth, AUTHENTICATE);
1428 CMD(assoc, ASSOCIATE);
1429 CMD(deauth, DEAUTHENTICATE);
1430 CMD(disassoc, DISASSOCIATE);
1431 CMD(join_ibss, JOIN_IBSS);
1432 CMD(join_mesh, JOIN_MESH);
1433 CMD(set_pmksa, SET_PMKSA);
1434 CMD(del_pmksa, DEL_PMKSA);
1435 CMD(flush_pmksa, FLUSH_PMKSA);
1436 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1437 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1438 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1439 CMD(mgmt_tx, FRAME);
1440 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1441 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1442 i++;
1443 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1444 goto nla_put_failure;
2e161f78 1445 }
3713b4e3
JB		 1446 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1447 dev->ops->join_mesh) {
1448 i++;
1449 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1450 goto nla_put_failure;
1451 }
1452 CMD(set_wds_peer, SET_WDS_PEER);
1453 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1454 CMD(tdls_mgmt, TDLS_MGMT);
1455 CMD(tdls_oper, TDLS_OPER);
1456 }
1457 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1458 CMD(sched_scan_start, START_SCHED_SCAN);
1459 CMD(probe_client, PROBE_CLIENT);
1460 CMD(set_noack_map, SET_NOACK_MAP);
1461 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1462 i++;
1463 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1464 goto nla_put_failure;
1465 }
1466 CMD(start_p2p_device, START_P2P_DEVICE);
1467 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1468 if (state->split) {
5de17984
AS		 1469 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1470 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
16ef1fe2
SW		 1471 if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1472 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1473 }
fa9ffc74 1474 CMD(set_qos_map, SET_QOS_MAP);
2e161f78 1475
3713b4e3
JB		 1476#ifdef CONFIG_NL80211_TESTMODE
1477 CMD(testmode_cmd, TESTMODE);
1478#endif
ff1b6e69 1479
3713b4e3 1480#undef CMD
ff1b6e69 1481
3713b4e3
JB		 1482 if (dev->ops->connect || dev->ops->auth) {
1483 i++;
1484 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1485 goto nla_put_failure;
ff1b6e69
JB		 1486 }
1487
3713b4e3
JB		 1488 if (dev->ops->disconnect || dev->ops->deauth) {
1489 i++;
1490 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1491 goto nla_put_failure;
1492 }
1493
1494 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1495 state->split_start++;
1496 if (state->split)
3713b4e3
JB		 1497 break;
1498 case 5:
1499 if (dev->ops->remain_on_channel &&
1500 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1501 nla_put_u32(msg,
1502 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1503 dev->wiphy.max_remain_on_channel_duration))
1504 goto nla_put_failure;
1505
1506 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1507 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1508 goto nla_put_failure;
1509
1510 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1511 goto nla_put_failure;
86e8cf98
JB		 1512 state->split_start++;
1513 if (state->split)
3713b4e3
JB		 1514 break;
1515 case 6:
1516#ifdef CONFIG_PM
86e8cf98 1517 if (nl80211_send_wowlan(msg, dev, state->split))
3713b4e3 1518 goto nla_put_failure;
86e8cf98
JB		 1519 state->split_start++;
1520 if (state->split)
3713b4e3
JB		 1521 break;
1522#else
86e8cf98 1523 state->split_start++;
dfb89c56 1524#endif
3713b4e3
JB		 1525 case 7:
1526 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1527 dev->wiphy.software_iftypes))
1528 goto nla_put_failure;
ff1b6e69 1529
86e8cf98
JB		 1530 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1531 state->split))
3713b4e3 1532 goto nla_put_failure;
7527a782 1533
86e8cf98
JB		 1534 state->split_start++;
1535 if (state->split)
3713b4e3
JB		 1536 break;
1537 case 8:
1538 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1539 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1540 dev->wiphy.ap_sme_capa))
1541 goto nla_put_failure;
7527a782 1542
fe1abafd
JB		 1543 features = dev->wiphy.features;
1544 /*
1545 * We can only add the per-channel limit information if the
1546 * dump is split, otherwise it makes it too big. Therefore
1547 * only advertise it in that case.
1548 */
86e8cf98 1549 if (state->split)
fe1abafd
JB		 1550 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1551 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1552 goto nla_put_failure;
562a7480 1553
3713b4e3
JB		 1554 if (dev->wiphy.ht_capa_mod_mask &&
1555 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1556 sizeof(*dev->wiphy.ht_capa_mod_mask),
1557 dev->wiphy.ht_capa_mod_mask))
1558 goto nla_put_failure;
1f074bd8 1559
3713b4e3
JB		 1560 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1561 dev->wiphy.max_acl_mac_addrs &&
1562 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1563 dev->wiphy.max_acl_mac_addrs))
1564 goto nla_put_failure;
7e7c8926 1565
3713b4e3
JB		 1566 /*
1567 * Any information below this point is only available to
1568 * applications that can deal with it being split. This
1569 * helps ensure that newly added capabilities don't break
1570 * older tools by overrunning their buffers.
1571 *
1572 * We still increment split_start so that in the split
1573 * case we'll continue with more data in the next round,
1574 * but break unconditionally so unsplit data stops here.
1575 */
86e8cf98 1576 state->split_start++;
3713b4e3
JB		 1577 break;
1578 case 9:
fe1abafd
JB		 1579 if (dev->wiphy.extended_capabilities &&
1580 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1581 dev->wiphy.extended_capabilities_len,
1582 dev->wiphy.extended_capabilities) ||
1583 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1584 dev->wiphy.extended_capabilities_len,
1585 dev->wiphy.extended_capabilities_mask)))
1586 goto nla_put_failure;
a50df0c4 1587
ee2aca34
JB		 1588 if (dev->wiphy.vht_capa_mod_mask &&
1589 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1590 sizeof(*dev->wiphy.vht_capa_mod_mask),
1591 dev->wiphy.vht_capa_mod_mask))
1592 goto nla_put_failure;
1593
be29b99a
AK		 1594 state->split_start++;
1595 break;
1596 case 10:
1597 if (nl80211_send_coalesce(msg, dev))
1598 goto nla_put_failure;
1599
01e0daa4
FF		 1600 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1601 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1602 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1603 goto nla_put_failure;
b43504cf
JM		 1604
1605 if (dev->wiphy.max_ap_assoc_sta &&
1606 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1607 dev->wiphy.max_ap_assoc_sta))
1608 goto nla_put_failure;
1609
ad7e718c
JB		 1610 state->split_start++;
1611 break;
1612 case 11:
567ffc35
JB		 1613 if (dev->wiphy.n_vendor_commands) {
1614 const struct nl80211_vendor_cmd_info *info;
1615 struct nlattr *nested;
1616
1617 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1618 if (!nested)
1619 goto nla_put_failure;
1620
1621 for (i = 0; i < dev->wiphy.n_vendor_commands; i++) {
1622 info = &dev->wiphy.vendor_commands[i].info;
1623 if (nla_put(msg, i + 1, sizeof(*info), info))
1624 goto nla_put_failure;
1625 }
1626 nla_nest_end(msg, nested);
1627 }
1628
1629 if (dev->wiphy.n_vendor_events) {
1630 const struct nl80211_vendor_cmd_info *info;
1631 struct nlattr *nested;
ad7e718c 1632
567ffc35
JB		 1633 nested = nla_nest_start(msg,
1634 NL80211_ATTR_VENDOR_EVENTS);
1635 if (!nested)
ad7e718c 1636 goto nla_put_failure;
567ffc35
JB		 1637
1638 for (i = 0; i < dev->wiphy.n_vendor_events; i++) {
1639 info = &dev->wiphy.vendor_events[i];
1640 if (nla_put(msg, i + 1, sizeof(*info), info))
1641 goto nla_put_failure;
1642 }
1643 nla_nest_end(msg, nested);
1644 }
01e0daa4 1645
3713b4e3 1646 /* done */
86e8cf98 1647 state->split_start = 0;
3713b4e3
JB		 1648 break;
1649 }
55682965
JB		 1650 return genlmsg_end(msg, hdr);
1651
1652 nla_put_failure:
bc3ed28c
TG		 1653 genlmsg_cancel(msg, hdr);
1654 return -EMSGSIZE;
55682965
JB		 1655}
1656
86e8cf98
JB		 1657static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1658 struct netlink_callback *cb,
1659 struct nl80211_dump_wiphy_state *state)
1660{
1661 struct nlattr **tb = nl80211_fam.attrbuf;
1662 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1663 tb, nl80211_fam.maxattr, nl80211_policy);
1664 /* ignore parse errors for backward compatibility */
1665 if (ret)
1666 return 0;
1667
1668 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1669 if (tb[NL80211_ATTR_WIPHY])
1670 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1671 if (tb[NL80211_ATTR_WDEV])
1672 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1673 if (tb[NL80211_ATTR_IFINDEX]) {
1674 struct net_device *netdev;
1675 struct cfg80211_registered_device *rdev;
1676 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1677
7f2b8562 1678 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1679 if (!netdev)
1680 return -ENODEV;
1681 if (netdev->ieee80211_ptr) {
1682 rdev = wiphy_to_dev(
1683 netdev->ieee80211_ptr->wiphy);
1684 state->filter_wiphy = rdev->wiphy_idx;
1685 }
86e8cf98
JB		 1686 }
1687
1688 return 0;
1689}
1690
55682965
JB		 1691static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1692{
645e77de 1693 int idx = 0, ret;
86e8cf98 1694 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
55682965 1695 struct cfg80211_registered_device *dev;
3a5a423b 1696
5fe231e8 1697 rtnl_lock();
86e8cf98
JB		 1698 if (!state) {
1699 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1700 if (!state) {
1701 rtnl_unlock();
86e8cf98 1702 return -ENOMEM;
3713b4e3 1703 }
86e8cf98
JB		 1704 state->filter_wiphy = -1;
1705 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1706 if (ret) {
1707 kfree(state);
1708 rtnl_unlock();
1709 return ret;
3713b4e3 1710 }
86e8cf98 1711 cb->args[0] = (long)state;
3713b4e3
JB		 1712 }
1713
79c97e97 1714 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1715 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1716 continue;
86e8cf98 1717 if (++idx <= state->start)
55682965 1718 continue;
86e8cf98
JB		 1719 if (state->filter_wiphy != -1 &&
1720 state->filter_wiphy != dev->wiphy_idx)
3713b4e3
JB		 1721 continue;
1722 /* attempt to fit multiple wiphy data chunks into the skb */
1723 do {
1724 ret = nl80211_send_wiphy(dev, skb,
1725 NETLINK_CB(cb->skb).portid,
1726 cb->nlh->nlmsg_seq,
86e8cf98 1727 NLM_F_MULTI, state);
3713b4e3
JB		 1728 if (ret < 0) {
1729 /*
1730 * If sending the wiphy data didn't fit (ENOBUFS
1731 * or EMSGSIZE returned), this SKB is still
1732 * empty (so it's not too big because another
1733 * wiphy dataset is already in the skb) and
1734 * we've not tried to adjust the dump allocation
1735 * yet ... then adjust the alloc size to be
1736 * bigger, and return 1 but with the empty skb.
1737 * This results in an empty message being RX'ed
1738 * in userspace, but that is ignored.
1739 *
1740 * We can then retry with the larger buffer.
1741 */
1742 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1743 !skb->len &&
1744 cb->min_dump_alloc < 4096) {
1745 cb->min_dump_alloc = 4096;
d98cae64 1746 rtnl_unlock();
3713b4e3
JB		 1747 return 1;
1748 }
1749 idx--;
1750 break;
645e77de 1751 }
86e8cf98 1752 } while (state->split_start > 0);
3713b4e3 1753 break;
55682965 1754 }
5fe231e8 1755 rtnl_unlock();
55682965 1756
86e8cf98 1757 state->start = idx;
55682965
JB		 1758
1759 return skb->len;
1760}
1761
86e8cf98
JB		 1762static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1763{
1764 kfree((void *)cb->args[0]);
1765 return 0;
1766}
1767
55682965
JB		 1768static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1769{
1770 struct sk_buff *msg;
4c476991 1771 struct cfg80211_registered_device *dev = info->user_ptr[0];
86e8cf98 1772 struct nl80211_dump_wiphy_state state = {};
55682965 1773
645e77de 1774 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1775 if (!msg)
4c476991 1776 return -ENOMEM;
55682965 1777
3713b4e3 1778 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1779 &state) < 0) {
4c476991
JB		 1780 nlmsg_free(msg);
1781 return -ENOBUFS;
1782 }
55682965 1783
134e6375 1784 return genlmsg_reply(msg, info);
55682965
JB		 1785}
1786
31888487
JM		 1787static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1788 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1789 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1790 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1791 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1792 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1793};
1794
1795static int parse_txq_params(struct nlattr *tb[],
1796 struct ieee80211_txq_params *txq_params)
1797{
a3304b0a 1798 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1799 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1800 !tb[NL80211_TXQ_ATTR_AIFS])
1801 return -EINVAL;
1802
a3304b0a 1803 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1804 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1805 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1806 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1807 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1808
a3304b0a
JB		 1809 if (txq_params->ac >= NL80211_NUM_ACS)
1810 return -EINVAL;
1811
31888487
JM		 1812 return 0;
1813}
1814
f444de05
JB		 1815static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1816{
1817 /*
cc1d2806
JB		 1818 * You can only set the channel explicitly for WDS interfaces,
1819 * all others have their channel managed via their respective
1820 * "establish a connection" command (connect, join, ...)
1821 *
1822 * For AP/GO and mesh mode, the channel can be set with the
1823 * channel userspace API, but is only stored and passed to the
1824 * low-level driver when the AP starts or the mesh is joined.
1825 * This is for backward compatibility, userspace can also give
1826 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1827 *
1828 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1829 * whatever else is going on, so they have their own special
1830 * operation to set the monitor channel if possible.
f444de05
JB		 1831 */
1832 return !wdev ||
1833 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1834 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1835 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1836 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1837}
1838
683b6d3b
JB		 1839static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1840 struct genl_info *info,
1841 struct cfg80211_chan_def *chandef)
1842{
dbeca2ea 1843 u32 control_freq;
683b6d3b
JB		 1844
1845 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1846 return -EINVAL;
1847
1848 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1849
1850 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1851 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1852 chandef->center_freq1 = control_freq;
1853 chandef->center_freq2 = 0;
683b6d3b
JB		 1854
1855 /* Primary channel not allowed */
1856 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1857 return -EINVAL;
1858
3d9d1d66
JB		 1859 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1860 enum nl80211_channel_type chantype;
1861
1862 chantype = nla_get_u32(
1863 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1864
1865 switch (chantype) {
1866 case NL80211_CHAN_NO_HT:
1867 case NL80211_CHAN_HT20:
1868 case NL80211_CHAN_HT40PLUS:
1869 case NL80211_CHAN_HT40MINUS:
1870 cfg80211_chandef_create(chandef, chandef->chan,
1871 chantype);
1872 break;
1873 default:
1874 return -EINVAL;
1875 }
1876 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1877 chandef->width =
1878 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1879 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1880 chandef->center_freq1 =
1881 nla_get_u32(
1882 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1883 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1884 chandef->center_freq2 =
1885 nla_get_u32(
1886 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1887 }
1888
9f5e8f6e 1889 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1890 return -EINVAL;
1891
9f5e8f6e
JB		 1892 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1893 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1894 return -EINVAL;
1895
2f301ab2
SW		 1896 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1897 chandef->width == NL80211_CHAN_WIDTH_10) &&
1898 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1899 return -EINVAL;
1900
683b6d3b
JB		 1901 return 0;
1902}
1903
f444de05
JB		 1904static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1905 struct wireless_dev *wdev,
1906 struct genl_info *info)
1907{
683b6d3b 1908 struct cfg80211_chan_def chandef;
f444de05 1909 int result;
e8c9bd5b
JB		 1910 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1911
1912 if (wdev)
1913 iftype = wdev->iftype;
f444de05 1914
f444de05
JB		 1915 if (!nl80211_can_set_dev_channel(wdev))
1916 return -EOPNOTSUPP;
1917
683b6d3b
JB		 1918 result = nl80211_parse_chandef(rdev, info, &chandef);
1919 if (result)
1920 return result;
f444de05 1921
e8c9bd5b 1922 switch (iftype) {
aa430da4
JB		 1923 case NL80211_IFTYPE_AP:
1924 case NL80211_IFTYPE_P2P_GO:
1925 if (wdev->beacon_interval) {
1926 result = -EBUSY;
1927 break;
1928 }
683b6d3b 1929 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1930 result = -EINVAL;
1931 break;
1932 }
683b6d3b 1933 wdev->preset_chandef = chandef;
aa430da4
JB		 1934 result = 0;
1935 break;
cc1d2806 1936 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1937 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1938 break;
e8c9bd5b 1939 case NL80211_IFTYPE_MONITOR:
683b6d3b 1940 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1941 break;
aa430da4 1942 default:
e8c9bd5b 1943 result = -EINVAL;
f444de05 1944 }
f444de05
JB		 1945
1946 return result;
1947}
1948
1949static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1950{
4c476991
JB		 1951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1952 struct net_device *netdev = info->user_ptr[1];
f444de05 1953
4c476991 1954 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1955}
1956
e8347eba
BJ		 1957static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1958{
43b19952
JB		 1959 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1960 struct net_device *dev = info->user_ptr[1];
1961 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1962 const u8 *bssid;
e8347eba
BJ		 1963
1964 if (!info->attrs[NL80211_ATTR_MAC])
1965 return -EINVAL;
1966
43b19952
JB		 1967 if (netif_running(dev))
1968 return -EBUSY;
e8347eba 1969
43b19952
JB		 1970 if (!rdev->ops->set_wds_peer)
1971 return -EOPNOTSUPP;
e8347eba 1972
43b19952
JB		 1973 if (wdev->iftype != NL80211_IFTYPE_WDS)
1974 return -EOPNOTSUPP;
e8347eba
BJ		 1975
1976 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1977 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1978}
1979
1980
55682965
JB		 1981static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1982{
1983 struct cfg80211_registered_device *rdev;
f444de05
JB		 1984 struct net_device *netdev = NULL;
1985 struct wireless_dev *wdev;
a1e567c8 1986 int result = 0, rem_txq_params = 0;
31888487 1987 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1988 u32 changed;
1989 u8 retry_short = 0, retry_long = 0;
1990 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1991 u8 coverage_class = 0;
55682965 1992
5fe231e8
JB		 1993 ASSERT_RTNL();
1994
f444de05
JB		 1995 /*
1996 * Try to find the wiphy and netdev. Normally this
1997 * function shouldn't need the netdev, but this is
1998 * done for backward compatibility -- previously
1999 * setting the channel was done per wiphy, but now
2000 * it is per netdev. Previous userland like hostapd
2001 * also passed a netdev to set_wiphy, so that it is
2002 * possible to let that go to the right netdev!
2003 */
4bbf4d56 2004
f444de05
JB		 2005 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2006 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2007
7f2b8562 2008 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2009 if (netdev && netdev->ieee80211_ptr)
f444de05 2010 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2011 else
f444de05 2012 netdev = NULL;
4bbf4d56
JB		 2013 }
2014
f444de05 2015 if (!netdev) {
878d9ec7
JB		 2016 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2017 info->attrs);
5fe231e8 2018 if (IS_ERR(rdev))
4c476991 2019 return PTR_ERR(rdev);
f444de05
JB		 2020 wdev = NULL;
2021 netdev = NULL;
2022 result = 0;
71fe96bf 2023 } else
f444de05 2024 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2025
2026 /*
2027 * end workaround code, by now the rdev is available
2028 * and locked, and wdev may or may not be NULL.
2029 */
4bbf4d56
JB		 2030
2031 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2032 result = cfg80211_dev_rename(
2033 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2034
4bbf4d56 2035 if (result)
7f2b8562 2036 return result;
31888487
JM		 2037
2038 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2039 struct ieee80211_txq_params txq_params;
2040 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2041
7f2b8562
YX		 2042 if (!rdev->ops->set_txq_params)
2043 return -EOPNOTSUPP;
31888487 2044
7f2b8562
YX		 2045 if (!netdev)
2046 return -EINVAL;
f70f01c2 2047
133a3ff2 2048 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2049 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2050 return -EINVAL;
133a3ff2 2051
7f2b8562
YX		 2052 if (!netif_running(netdev))
2053 return -ENETDOWN;
2b5f8b0b 2054
31888487
JM		 2055 nla_for_each_nested(nl_txq_params,
2056 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2057 rem_txq_params) {
2058 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2059 nla_data(nl_txq_params),
2060 nla_len(nl_txq_params),
2061 txq_params_policy);
2062 result = parse_txq_params(tb, &txq_params);
2063 if (result)
7f2b8562 2064 return result;
31888487 2065
e35e4d28
HG		 2066 result = rdev_set_txq_params(rdev, netdev,
2067 &txq_params);
31888487 2068 if (result)
7f2b8562 2069 return result;
31888487
JM		 2070 }
2071 }
55682965 2072
72bdcf34 2073 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 2074 result = __nl80211_set_channel(rdev,
2075 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
2076 info);
72bdcf34 2077 if (result)
7f2b8562 2078 return result;
72bdcf34
JM		 2079 }
2080
98d2ff8b 2081 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2082 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2083 enum nl80211_tx_power_setting type;
2084 int idx, mbm = 0;
2085
c8442118
JB		 2086 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2087 txp_wdev = NULL;
2088
7f2b8562
YX		 2089 if (!rdev->ops->set_tx_power)
2090 return -EOPNOTSUPP;
98d2ff8b
JO		 2091
2092 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2093 type = nla_get_u32(info->attrs[idx]);
2094
2095 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2096 (type != NL80211_TX_POWER_AUTOMATIC))
2097 return -EINVAL;
98d2ff8b
JO		 2098
2099 if (type != NL80211_TX_POWER_AUTOMATIC) {
2100 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2101 mbm = nla_get_u32(info->attrs[idx]);
2102 }
2103
c8442118 2104 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2105 if (result)
7f2b8562 2106 return result;
98d2ff8b
JO		 2107 }
2108
afe0cbf8
BR		 2109 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2110 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2111 u32 tx_ant, rx_ant;
7f531e03
BR		 2112 if ((!rdev->wiphy.available_antennas_tx &&
2113 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2114 !rdev->ops->set_antenna)
2115 return -EOPNOTSUPP;
afe0cbf8
BR		 2116
2117 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2118 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2119
a7ffac95 2120 /* reject antenna configurations which don't match the
7f531e03
BR		 2121 * available antenna masks, except for the "all" mask */
2122 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2123 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2124 return -EINVAL;
a7ffac95 2125
7f531e03
BR		 2126 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2127 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2128
e35e4d28 2129 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2130 if (result)
7f2b8562 2131 return result;
afe0cbf8
BR		 2132 }
2133
b9a5f8ca
JM		 2134 changed = 0;
2135
2136 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2137 retry_short = nla_get_u8(
2138 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2139 if (retry_short == 0)
2140 return -EINVAL;
2141
b9a5f8ca
JM		 2142 changed |= WIPHY_PARAM_RETRY_SHORT;
2143 }
2144
2145 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2146 retry_long = nla_get_u8(
2147 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2148 if (retry_long == 0)
2149 return -EINVAL;
2150
b9a5f8ca
JM		 2151 changed |= WIPHY_PARAM_RETRY_LONG;
2152 }
2153
2154 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2155 frag_threshold = nla_get_u32(
2156 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2157 if (frag_threshold < 256)
2158 return -EINVAL;
2159
b9a5f8ca
JM		 2160 if (frag_threshold != (u32) -1) {
2161 /*
2162 * Fragments (apart from the last one) are required to
2163 * have even length. Make the fragmentation code
2164 * simpler by stripping LSB should someone try to use
2165 * odd threshold value.
2166 */
2167 frag_threshold &= ~0x1;
2168 }
2169 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2170 }
2171
2172 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2173 rts_threshold = nla_get_u32(
2174 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2175 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2176 }
2177
81077e82
LT		 2178 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2179 coverage_class = nla_get_u8(
2180 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2181 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2182 }
2183
b9a5f8ca
JM		 2184 if (changed) {
2185 u8 old_retry_short, old_retry_long;
2186 u32 old_frag_threshold, old_rts_threshold;
81077e82 2187 u8 old_coverage_class;
b9a5f8ca 2188
7f2b8562
YX		 2189 if (!rdev->ops->set_wiphy_params)
2190 return -EOPNOTSUPP;
b9a5f8ca
JM		 2191
2192 old_retry_short = rdev->wiphy.retry_short;
2193 old_retry_long = rdev->wiphy.retry_long;
2194 old_frag_threshold = rdev->wiphy.frag_threshold;
2195 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2196 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2197
2198 if (changed & WIPHY_PARAM_RETRY_SHORT)
2199 rdev->wiphy.retry_short = retry_short;
2200 if (changed & WIPHY_PARAM_RETRY_LONG)
2201 rdev->wiphy.retry_long = retry_long;
2202 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2203 rdev->wiphy.frag_threshold = frag_threshold;
2204 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2205 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2206 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2207 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2208
e35e4d28 2209 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2210 if (result) {
2211 rdev->wiphy.retry_short = old_retry_short;
2212 rdev->wiphy.retry_long = old_retry_long;
2213 rdev->wiphy.frag_threshold = old_frag_threshold;
2214 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2215 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2216 }
2217 }
7f2b8562 2218 return 0;
55682965
JB		 2219}
2220
71bbc994
JB		 2221static inline u64 wdev_id(struct wireless_dev *wdev)
2222{
2223 return (u64)wdev->identifier |
2224 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2225}
55682965 2226
683b6d3b 2227static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2228 const struct cfg80211_chan_def *chandef)
683b6d3b 2229{
9f5e8f6e 2230 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2231
683b6d3b
JB		 2232 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2233 chandef->chan->center_freq))
2234 return -ENOBUFS;
3d9d1d66
JB		 2235 switch (chandef->width) {
2236 case NL80211_CHAN_WIDTH_20_NOHT:
2237 case NL80211_CHAN_WIDTH_20:
2238 case NL80211_CHAN_WIDTH_40:
2239 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2240 cfg80211_get_chandef_type(chandef)))
2241 return -ENOBUFS;
2242 break;
2243 default:
2244 break;
2245 }
2246 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2247 return -ENOBUFS;
2248 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2249 return -ENOBUFS;
2250 if (chandef->center_freq2 &&
2251 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2252 return -ENOBUFS;
2253 return 0;
2254}
2255
15e47304 2256static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2257 struct cfg80211_registered_device *rdev,
72fb2abc 2258 struct wireless_dev *wdev)
55682965 2259{
72fb2abc 2260 struct net_device *dev = wdev->netdev;
55682965
JB		 2261 void *hdr;
2262
15e47304 2263 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2264 if (!hdr)
2265 return -1;
2266
72fb2abc
JB		 2267 if (dev &&
2268 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2269 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2270 goto nla_put_failure;
2271
2272 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2273 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2274 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2275 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2276 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2277 rdev->devlist_generation ^
2278 (cfg80211_rdev_list_generation << 2)))
2279 goto nla_put_failure;
f5ea9120 2280
5b7ccaf3 2281 if (rdev->ops->get_channel) {
683b6d3b
JB		 2282 int ret;
2283 struct cfg80211_chan_def chandef;
2284
2285 ret = rdev_get_channel(rdev, wdev, &chandef);
2286 if (ret == 0) {
2287 if (nl80211_send_chandef(msg, &chandef))
2288 goto nla_put_failure;
2289 }
d91df0e3
PF		 2290 }
2291
b84e7a05
AQ		 2292 if (wdev->ssid_len) {
2293 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2294 goto nla_put_failure;
2295 }
2296
55682965
JB		 2297 return genlmsg_end(msg, hdr);
2298
2299 nla_put_failure:
bc3ed28c
TG		 2300 genlmsg_cancel(msg, hdr);
2301 return -EMSGSIZE;
55682965
JB		 2302}
2303
2304static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2305{
2306 int wp_idx = 0;
2307 int if_idx = 0;
2308 int wp_start = cb->args[0];
2309 int if_start = cb->args[1];
f5ea9120 2310 struct cfg80211_registered_device *rdev;
55682965
JB		 2311 struct wireless_dev *wdev;
2312
5fe231e8 2313 rtnl_lock();
f5ea9120
JB		 2314 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2315 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2316 continue;
bba95fef
JB		 2317 if (wp_idx < wp_start) {
2318 wp_idx++;
55682965 2319 continue;
bba95fef 2320 }
55682965
JB		 2321 if_idx = 0;
2322
89a54e48 2323 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2324 if (if_idx < if_start) {
2325 if_idx++;
55682965 2326 continue;
bba95fef 2327 }
15e47304 2328 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2329 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2330 rdev, wdev) < 0) {
bba95fef
JB		 2331 goto out;
2332 }
2333 if_idx++;
55682965 2334 }
bba95fef
JB		 2335
2336 wp_idx++;
55682965 2337 }
bba95fef 2338 out:
5fe231e8 2339 rtnl_unlock();
55682965
JB		 2340
2341 cb->args[0] = wp_idx;
2342 cb->args[1] = if_idx;
2343
2344 return skb->len;
2345}
2346
2347static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2348{
2349 struct sk_buff *msg;
4c476991 2350 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2351 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2352
fd2120ca 2353 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2354 if (!msg)
4c476991 2355 return -ENOMEM;
55682965 2356
15e47304 2357 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2358 dev, wdev) < 0) {
4c476991
JB		 2359 nlmsg_free(msg);
2360 return -ENOBUFS;
2361 }
55682965 2362
134e6375 2363 return genlmsg_reply(msg, info);
55682965
JB		 2364}
2365
66f7ac50
MW		 2366static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2367 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2368 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2369 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2370 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2371 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2372 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2373};
2374
2375static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2376{
2377 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2378 int flag;
2379
2380 *mntrflags = 0;
2381
2382 if (!nla)
2383 return -EINVAL;
2384
2385 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2386 nla, mntr_flags_policy))
2387 return -EINVAL;
2388
2389 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2390 if (flags[flag])
2391 *mntrflags |= (1<<flag);
2392
2393 return 0;
2394}
2395
9bc383de 2396static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2397 struct net_device *netdev, u8 use_4addr,
2398 enum nl80211_iftype iftype)
9bc383de 2399{
ad4bb6f8 2400 if (!use_4addr) {
f350a0a8 2401 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2402 return -EBUSY;
9bc383de 2403 return 0;
ad4bb6f8 2404 }
9bc383de
JB		 2405
2406 switch (iftype) {
2407 case NL80211_IFTYPE_AP_VLAN:
2408 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2409 return 0;
2410 break;
2411 case NL80211_IFTYPE_STATION:
2412 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2413 return 0;
2414 break;
2415 default:
2416 break;
2417 }
2418
2419 return -EOPNOTSUPP;
2420}
2421
55682965
JB		 2422static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2423{
4c476991 2424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2425 struct vif_params params;
e36d56b6 2426 int err;
04a773ad 2427 enum nl80211_iftype otype, ntype;
4c476991 2428 struct net_device *dev = info->user_ptr[1];
92ffe055 2429 u32 _flags, *flags = NULL;
ac7f9cfa 2430 bool change = false;
55682965 2431
2ec600d6
LCC		 2432 memset(&params, 0, sizeof(params));
2433
04a773ad 2434 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2435
723b038d 2436 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2437 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2438 if (otype != ntype)
ac7f9cfa 2439 change = true;
4c476991
JB		 2440 if (ntype > NL80211_IFTYPE_MAX)
2441 return -EINVAL;
723b038d
JB		 2442 }
2443
92ffe055 2444 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2445 struct wireless_dev *wdev = dev->ieee80211_ptr;
2446
4c476991
JB		 2447 if (ntype != NL80211_IFTYPE_MESH_POINT)
2448 return -EINVAL;
29cbe68c
JB		 2449 if (netif_running(dev))
2450 return -EBUSY;
2451
2452 wdev_lock(wdev);
2453 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2454 IEEE80211_MAX_MESH_ID_LEN);
2455 wdev->mesh_id_up_len =
2456 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2457 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2458 wdev->mesh_id_up_len);
2459 wdev_unlock(wdev);
2ec600d6
LCC		 2460 }
2461
8b787643
FF		 2462 if (info->attrs[NL80211_ATTR_4ADDR]) {
2463 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2464 change = true;
ad4bb6f8 2465 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2466 if (err)
4c476991 2467 return err;
8b787643
FF		 2468 } else {
2469 params.use_4addr = -1;
2470 }
2471
92ffe055 2472 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2473 if (ntype != NL80211_IFTYPE_MONITOR)
2474 return -EINVAL;
92ffe055
JB		 2475 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2476 &_flags);
ac7f9cfa 2477 if (err)
4c476991 2478 return err;
ac7f9cfa
JB		 2479
2480 flags = &_flags;
2481 change = true;
92ffe055 2482 }
3b85875a 2483
18003297 2484 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2485 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2486 return -EOPNOTSUPP;
2487
ac7f9cfa 2488 if (change)
3d54d255 2489 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2490 else
2491 err = 0;
60719ffd 2492
9bc383de
JB		 2493 if (!err && params.use_4addr != -1)
2494 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2495
55682965
JB		 2496 return err;
2497}
2498
2499static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2500{
4c476991 2501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2502 struct vif_params params;
84efbb84 2503 struct wireless_dev *wdev;
1c90f9d4 2504 struct sk_buff *msg;
55682965
JB		 2505 int err;
2506 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2507 u32 flags;
55682965 2508
2ec600d6
LCC		 2509 memset(&params, 0, sizeof(params));
2510
55682965
JB		 2511 if (!info->attrs[NL80211_ATTR_IFNAME])
2512 return -EINVAL;
2513
2514 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2515 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2516 if (type > NL80211_IFTYPE_MAX)
2517 return -EINVAL;
2518 }
2519
79c97e97 2520 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2521 !(rdev->wiphy.interface_modes & (1 << type)))
2522 return -EOPNOTSUPP;
55682965 2523
1c18f145
AS		 2524 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2525 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2526 ETH_ALEN);
2527 if (!is_valid_ether_addr(params.macaddr))
2528 return -EADDRNOTAVAIL;
2529 }
2530
9bc383de 2531 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2532 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2533 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2534 if (err)
4c476991 2535 return err;
9bc383de 2536 }
8b787643 2537
1c90f9d4
JB		 2538 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2539 if (!msg)
2540 return -ENOMEM;
2541
66f7ac50
MW		 2542 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2543 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2544 &flags);
e057d3c3 2545
18003297 2546 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2547 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2548 return -EOPNOTSUPP;
2549
e35e4d28
HG		 2550 wdev = rdev_add_virtual_intf(rdev,
2551 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2552 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2553 if (IS_ERR(wdev)) {
2554 nlmsg_free(msg);
84efbb84 2555 return PTR_ERR(wdev);
1c90f9d4 2556 }
2ec600d6 2557
98104fde
JB		 2558 switch (type) {
2559 case NL80211_IFTYPE_MESH_POINT:
2560 if (!info->attrs[NL80211_ATTR_MESH_ID])
2561 break;
29cbe68c
JB		 2562 wdev_lock(wdev);
2563 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2564 IEEE80211_MAX_MESH_ID_LEN);
2565 wdev->mesh_id_up_len =
2566 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2567 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2568 wdev->mesh_id_up_len);
2569 wdev_unlock(wdev);
98104fde
JB		 2570 break;
2571 case NL80211_IFTYPE_P2P_DEVICE:
2572 /*
2573 * P2P Device doesn't have a netdev, so doesn't go
2574 * through the netdev notifier and must be added here
2575 */
2576 mutex_init(&wdev->mtx);
2577 INIT_LIST_HEAD(&wdev->event_list);
2578 spin_lock_init(&wdev->event_lock);
2579 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2580 spin_lock_init(&wdev->mgmt_registrations_lock);
2581
98104fde
JB		 2582 wdev->identifier = ++rdev->wdev_id;
2583 list_add_rcu(&wdev->list, &rdev->wdev_list);
2584 rdev->devlist_generation++;
98104fde
JB		 2585 break;
2586 default:
2587 break;
29cbe68c
JB		 2588 }
2589
15e47304 2590 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2591 rdev, wdev) < 0) {
2592 nlmsg_free(msg);
2593 return -ENOBUFS;
2594 }
2595
2596 return genlmsg_reply(msg, info);
55682965
JB		 2597}
2598
2599static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2600{
4c476991 2601 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2602 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2603
4c476991
JB		 2604 if (!rdev->ops->del_virtual_intf)
2605 return -EOPNOTSUPP;
55682965 2606
84efbb84
JB		 2607 /*
2608 * If we remove a wireless device without a netdev then clear
2609 * user_ptr[1] so that nl80211_post_doit won't dereference it
2610 * to check if it needs to do dev_put(). Otherwise it crashes
2611 * since the wdev has been freed, unlike with a netdev where
2612 * we need the dev_put() for the netdev to really be freed.
2613 */
2614 if (!wdev->netdev)
2615 info->user_ptr[1] = NULL;
2616
e35e4d28 2617 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2618}
2619
1d9d9213
SW		 2620static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2621{
2622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2623 struct net_device *dev = info->user_ptr[1];
2624 u16 noack_map;
2625
2626 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2627 return -EINVAL;
2628
2629 if (!rdev->ops->set_noack_map)
2630 return -EOPNOTSUPP;
2631
2632 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2633
e35e4d28 2634 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2635}
2636
41ade00f
JB		 2637struct get_key_cookie {
2638 struct sk_buff *msg;
2639 int error;
b9454e83 2640 int idx;
41ade00f
JB		 2641};
2642
2643static void get_key_callback(void *c, struct key_params *params)
2644{
b9454e83 2645 struct nlattr *key;
41ade00f
JB		 2646 struct get_key_cookie *cookie = c;
2647
9360ffd1
DM		 2648 if ((params->key &&
2649 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2650 params->key_len, params->key)) ||
2651 (params->seq &&
2652 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2653 params->seq_len, params->seq)) ||
2654 (params->cipher &&
2655 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2656 params->cipher)))
2657 goto nla_put_failure;
41ade00f 2658
b9454e83
JB		 2659 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2660 if (!key)
2661 goto nla_put_failure;
2662
9360ffd1
DM		 2663 if ((params->key &&
2664 nla_put(cookie->msg, NL80211_KEY_DATA,
2665 params->key_len, params->key)) ||
2666 (params->seq &&
2667 nla_put(cookie->msg, NL80211_KEY_SEQ,
2668 params->seq_len, params->seq)) ||
2669 (params->cipher &&
2670 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2671 params->cipher)))
2672 goto nla_put_failure;
b9454e83 2673
9360ffd1
DM		 2674 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2675 goto nla_put_failure;
b9454e83
JB		 2676
2677 nla_nest_end(cookie->msg, key);
2678
41ade00f
JB		 2679 return;
2680 nla_put_failure:
2681 cookie->error = 1;
2682}
2683
2684static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2685{
4c476991 2686 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2687 int err;
4c476991 2688 struct net_device *dev = info->user_ptr[1];
41ade00f 2689 u8 key_idx = 0;
e31b8213
JB		 2690 const u8 *mac_addr = NULL;
2691 bool pairwise;
41ade00f
JB		 2692 struct get_key_cookie cookie = {
2693 .error = 0,
2694 };
2695 void *hdr;
2696 struct sk_buff *msg;
2697
2698 if (info->attrs[NL80211_ATTR_KEY_IDX])
2699 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2700
3cfcf6ac 2701 if (key_idx > 5)
41ade00f
JB		 2702 return -EINVAL;
2703
2704 if (info->attrs[NL80211_ATTR_MAC])
2705 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2706
e31b8213
JB		 2707 pairwise = !!mac_addr;
2708 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2709 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2710 if (kt >= NUM_NL80211_KEYTYPES)
2711 return -EINVAL;
2712 if (kt != NL80211_KEYTYPE_GROUP &&
2713 kt != NL80211_KEYTYPE_PAIRWISE)
2714 return -EINVAL;
2715 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2716 }
2717
4c476991
JB		 2718 if (!rdev->ops->get_key)
2719 return -EOPNOTSUPP;
41ade00f 2720
fd2120ca 2721 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2722 if (!msg)
2723 return -ENOMEM;
41ade00f 2724
15e47304 2725 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2726 NL80211_CMD_NEW_KEY);
cb35fba3 2727 if (!hdr)
9fe271af 2728 goto nla_put_failure;
41ade00f
JB		 2729
2730 cookie.msg = msg;
b9454e83 2731 cookie.idx = key_idx;
41ade00f 2732
9360ffd1
DM		 2733 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2734 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2735 goto nla_put_failure;
2736 if (mac_addr &&
2737 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2738 goto nla_put_failure;
41ade00f 2739
e31b8213
JB		 2740 if (pairwise && mac_addr &&
2741 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2742 return -ENOENT;
2743
e35e4d28
HG		 2744 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2745 get_key_callback);
41ade00f
JB		 2746
2747 if (err)
6c95e2a2 2748 goto free_msg;
41ade00f
JB		 2749
2750 if (cookie.error)
2751 goto nla_put_failure;
2752
2753 genlmsg_end(msg, hdr);
4c476991 2754 return genlmsg_reply(msg, info);
41ade00f
JB		 2755
2756 nla_put_failure:
2757 err = -ENOBUFS;
6c95e2a2 2758 free_msg:
41ade00f 2759 nlmsg_free(msg);
41ade00f
JB		 2760 return err;
2761}
2762
2763static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2764{
4c476991 2765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2766 struct key_parse key;
41ade00f 2767 int err;
4c476991 2768 struct net_device *dev = info->user_ptr[1];
41ade00f 2769
b9454e83
JB		 2770 err = nl80211_parse_key(info, &key);
2771 if (err)
2772 return err;
41ade00f 2773
b9454e83 2774 if (key.idx < 0)
41ade00f
JB		 2775 return -EINVAL;
2776
b9454e83
JB		 2777 /* only support setting default key */
2778 if (!key.def && !key.defmgmt)
41ade00f
JB		 2779 return -EINVAL;
2780
dbd2fd65 2781 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2782
dbd2fd65
JB		 2783 if (key.def) {
2784 if (!rdev->ops->set_default_key) {
2785 err = -EOPNOTSUPP;
2786 goto out;
2787 }
41ade00f 2788
dbd2fd65
JB		 2789 err = nl80211_key_allowed(dev->ieee80211_ptr);
2790 if (err)
2791 goto out;
2792
e35e4d28 2793 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2794 key.def_uni, key.def_multi);
2795
2796 if (err)
2797 goto out;
fffd0934 2798
3d23e349 2799#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2800 dev->ieee80211_ptr->wext.default_key = key.idx;
2801#endif
2802 } else {
2803 if (key.def_uni || !key.def_multi) {
2804 err = -EINVAL;
2805 goto out;
2806 }
2807
2808 if (!rdev->ops->set_default_mgmt_key) {
2809 err = -EOPNOTSUPP;
2810 goto out;
2811 }
2812
2813 err = nl80211_key_allowed(dev->ieee80211_ptr);
2814 if (err)
2815 goto out;
2816
e35e4d28 2817 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2818 if (err)
2819 goto out;
2820
2821#ifdef CONFIG_CFG80211_WEXT
2822 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2823#endif
dbd2fd65
JB		 2824 }
2825
2826 out:
fffd0934 2827 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2828
41ade00f
JB		 2829 return err;
2830}
2831
2832static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2833{
4c476991 2834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2835 int err;
4c476991 2836 struct net_device *dev = info->user_ptr[1];
b9454e83 2837 struct key_parse key;
e31b8213 2838 const u8 *mac_addr = NULL;
41ade00f 2839
b9454e83
JB		 2840 err = nl80211_parse_key(info, &key);
2841 if (err)
2842 return err;
41ade00f 2843
b9454e83 2844 if (!key.p.key)
41ade00f
JB		 2845 return -EINVAL;
2846
41ade00f
JB		 2847 if (info->attrs[NL80211_ATTR_MAC])
2848 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2849
e31b8213
JB		 2850 if (key.type == -1) {
2851 if (mac_addr)
2852 key.type = NL80211_KEYTYPE_PAIRWISE;
2853 else
2854 key.type = NL80211_KEYTYPE_GROUP;
2855 }
2856
2857 /* for now */
2858 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2859 key.type != NL80211_KEYTYPE_GROUP)
2860 return -EINVAL;
2861
4c476991
JB		 2862 if (!rdev->ops->add_key)
2863 return -EOPNOTSUPP;
25e47c18 2864
e31b8213
JB		 2865 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2866 key.type == NL80211_KEYTYPE_PAIRWISE,
2867 mac_addr))
4c476991 2868 return -EINVAL;
41ade00f 2869
fffd0934
JB		 2870 wdev_lock(dev->ieee80211_ptr);
2871 err = nl80211_key_allowed(dev->ieee80211_ptr);
2872 if (!err)
e35e4d28
HG		 2873 err = rdev_add_key(rdev, dev, key.idx,
2874 key.type == NL80211_KEYTYPE_PAIRWISE,
2875 mac_addr, &key.p);
fffd0934 2876 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2877
41ade00f
JB		 2878 return err;
2879}
2880
2881static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2882{
4c476991 2883 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2884 int err;
4c476991 2885 struct net_device *dev = info->user_ptr[1];
41ade00f 2886 u8 *mac_addr = NULL;
b9454e83 2887 struct key_parse key;
41ade00f 2888
b9454e83
JB		 2889 err = nl80211_parse_key(info, &key);
2890 if (err)
2891 return err;
41ade00f
JB		 2892
2893 if (info->attrs[NL80211_ATTR_MAC])
2894 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2895
e31b8213
JB		 2896 if (key.type == -1) {
2897 if (mac_addr)
2898 key.type = NL80211_KEYTYPE_PAIRWISE;
2899 else
2900 key.type = NL80211_KEYTYPE_GROUP;
2901 }
2902
2903 /* for now */
2904 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2905 key.type != NL80211_KEYTYPE_GROUP)
2906 return -EINVAL;
2907
4c476991
JB		 2908 if (!rdev->ops->del_key)
2909 return -EOPNOTSUPP;
41ade00f 2910
fffd0934
JB		 2911 wdev_lock(dev->ieee80211_ptr);
2912 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2913
2914 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2915 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2916 err = -ENOENT;
2917
fffd0934 2918 if (!err)
e35e4d28
HG		 2919 err = rdev_del_key(rdev, dev, key.idx,
2920 key.type == NL80211_KEYTYPE_PAIRWISE,
2921 mac_addr);
41ade00f 2922
3d23e349 2923#ifdef CONFIG_CFG80211_WEXT
08645126 2924 if (!err) {
b9454e83 2925 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2926 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2927 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2928 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2929 }
2930#endif
fffd0934 2931 wdev_unlock(dev->ieee80211_ptr);
08645126 2932
41ade00f
JB		 2933 return err;
2934}
2935
77765eaf
VT		 2936/* This function returns an error or the number of nested attributes */
2937static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2938{
2939 struct nlattr *attr;
2940 int n_entries = 0, tmp;
2941
2942 nla_for_each_nested(attr, nl_attr, tmp) {
2943 if (nla_len(attr) != ETH_ALEN)
2944 return -EINVAL;
2945
2946 n_entries++;
2947 }
2948
2949 return n_entries;
2950}
2951
2952/*
2953 * This function parses ACL information and allocates memory for ACL data.
2954 * On successful return, the calling function is responsible to free the
2955 * ACL buffer returned by this function.
2956 */
2957static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2958 struct genl_info *info)
2959{
2960 enum nl80211_acl_policy acl_policy;
2961 struct nlattr *attr;
2962 struct cfg80211_acl_data *acl;
2963 int i = 0, n_entries, tmp;
2964
2965 if (!wiphy->max_acl_mac_addrs)
2966 return ERR_PTR(-EOPNOTSUPP);
2967
2968 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2969 return ERR_PTR(-EINVAL);
2970
2971 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2972 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2973 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2974 return ERR_PTR(-EINVAL);
2975
2976 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2977 return ERR_PTR(-EINVAL);
2978
2979 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2980 if (n_entries < 0)
2981 return ERR_PTR(n_entries);
2982
2983 if (n_entries > wiphy->max_acl_mac_addrs)
2984 return ERR_PTR(-ENOTSUPP);
2985
2986 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2987 GFP_KERNEL);
2988 if (!acl)
2989 return ERR_PTR(-ENOMEM);
2990
2991 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2992 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2993 i++;
2994 }
2995
2996 acl->n_acl_entries = n_entries;
2997 acl->acl_policy = acl_policy;
2998
2999 return acl;
3000}
3001
3002static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3003{
3004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3005 struct net_device *dev = info->user_ptr[1];
3006 struct cfg80211_acl_data *acl;
3007 int err;
3008
3009 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3010 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3011 return -EOPNOTSUPP;
3012
3013 if (!dev->ieee80211_ptr->beacon_interval)
3014 return -EINVAL;
3015
3016 acl = parse_acl_data(&rdev->wiphy, info);
3017 if (IS_ERR(acl))
3018 return PTR_ERR(acl);
3019
3020 err = rdev_set_mac_acl(rdev, dev, acl);
3021
3022 kfree(acl);
3023
3024 return err;
3025}
3026
a1193be8 3027static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3028 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3029{
8860020e 3030 bool haveinfo = false;
ed1b6cc7 3031
a1193be8
SW		 3032 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3033 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3034 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3035 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3036 return -EINVAL;
3037
8860020e 3038 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3039
a1193be8
SW		 3040 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3041 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3042 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3043 if (!bcn->head_len)
3044 return -EINVAL;
3045 haveinfo = true;
ed1b6cc7
JB		 3046 }
3047
a1193be8
SW		 3048 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3049 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3050 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3051 haveinfo = true;
ed1b6cc7
JB		 3052 }
3053
4c476991
JB		 3054 if (!haveinfo)
3055 return -EINVAL;
3b85875a 3056
a1193be8
SW		 3057 if (attrs[NL80211_ATTR_IE]) {
3058 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3059 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3060 }
3061
a1193be8 3062 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3063 bcn->proberesp_ies =
a1193be8 3064 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3065 bcn->proberesp_ies_len =
a1193be8 3066 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3067 }
3068
a1193be8 3069 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3070 bcn->assocresp_ies =
a1193be8 3071 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3072 bcn->assocresp_ies_len =
a1193be8 3073 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3074 }
3075
a1193be8
SW		 3076 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3077 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3078 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3079 }
3080
8860020e
JB		 3081 return 0;
3082}
3083
46c1dd0c
FF		 3084static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3085 struct cfg80211_ap_settings *params)
3086{
3087 struct wireless_dev *wdev;
3088 bool ret = false;
3089
89a54e48 3090 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3091 if (wdev->iftype != NL80211_IFTYPE_AP &&
3092 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3093 continue;
3094
683b6d3b 3095 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3096 continue;
3097
683b6d3b 3098 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3099 ret = true;
3100 break;
3101 }
3102
46c1dd0c
FF		 3103 return ret;
3104}
3105
e39e5b5e
JM		 3106static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3107 enum nl80211_auth_type auth_type,
3108 enum nl80211_commands cmd)
3109{
3110 if (auth_type > NL80211_AUTHTYPE_MAX)
3111 return false;
3112
3113 switch (cmd) {
3114 case NL80211_CMD_AUTHENTICATE:
3115 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3116 auth_type == NL80211_AUTHTYPE_SAE)
3117 return false;
3118 return true;
3119 case NL80211_CMD_CONNECT:
3120 case NL80211_CMD_START_AP:
3121 /* SAE not supported yet */
3122 if (auth_type == NL80211_AUTHTYPE_SAE)
3123 return false;
3124 return true;
3125 default:
3126 return false;
3127 }
3128}
3129
8860020e
JB		 3130static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3131{
3132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3133 struct net_device *dev = info->user_ptr[1];
3134 struct wireless_dev *wdev = dev->ieee80211_ptr;
3135 struct cfg80211_ap_settings params;
3136 int err;
04f39047 3137 u8 radar_detect_width = 0;
8860020e
JB		 3138
3139 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3140 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3141 return -EOPNOTSUPP;
3142
3143 if (!rdev->ops->start_ap)
3144 return -EOPNOTSUPP;
3145
3146 if (wdev->beacon_interval)
3147 return -EALREADY;
3148
3149 memset(&params, 0, sizeof(params));
3150
3151 /* these are required for START_AP */
3152 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3153 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3154 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3155 return -EINVAL;
3156
a1193be8 3157 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3158 if (err)
3159 return err;
3160
3161 params.beacon_interval =
3162 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3163 params.dtim_period =
3164 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3165
3166 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3167 if (err)
3168 return err;
3169
3170 /*
3171 * In theory, some of these attributes should be required here
3172 * but since they were not used when the command was originally
3173 * added, keep them optional for old user space programs to let
3174 * them continue to work with drivers that do not need the
3175 * additional information -- drivers must check!
3176 */
3177 if (info->attrs[NL80211_ATTR_SSID]) {
3178 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3179 params.ssid_len =
3180 nla_len(info->attrs[NL80211_ATTR_SSID]);
3181 if (params.ssid_len == 0 ||
3182 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3183 return -EINVAL;
3184 }
3185
3186 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3187 params.hidden_ssid = nla_get_u32(
3188 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3189 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3190 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3191 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3192 return -EINVAL;
3193 }
3194
3195 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3196
3197 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3198 params.auth_type = nla_get_u32(
3199 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3200 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3201 NL80211_CMD_START_AP))
8860020e
JB		 3202 return -EINVAL;
3203 } else
3204 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3205
3206 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3207 NL80211_MAX_NR_CIPHER_SUITES);
3208 if (err)
3209 return err;
3210
1b658f11
VT		 3211 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3212 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3213 return -EOPNOTSUPP;
3214 params.inactivity_timeout = nla_get_u16(
3215 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3216 }
3217
53cabad7
JB		 3218 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3219 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3220 return -EINVAL;
3221 params.p2p_ctwindow =
3222 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3223 if (params.p2p_ctwindow > 127)
3224 return -EINVAL;
3225 if (params.p2p_ctwindow != 0 &&
3226 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3227 return -EINVAL;
3228 }
3229
3230 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3231 u8 tmp;
3232
3233 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3234 return -EINVAL;
3235 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3236 if (tmp > 1)
3237 return -EINVAL;
3238 params.p2p_opp_ps = tmp;
3239 if (params.p2p_opp_ps != 0 &&
3240 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3241 return -EINVAL;
3242 }
3243
aa430da4 3244 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3245 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3246 if (err)
3247 return err;
3248 } else if (wdev->preset_chandef.chan) {
3249 params.chandef = wdev->preset_chandef;
46c1dd0c 3250 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3251 return -EINVAL;
3252
683b6d3b 3253 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3254 return -EINVAL;
3255
04f39047
SW		 3256 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3257 if (err < 0)
3258 return err;
3259 if (err) {
3260 radar_detect_width = BIT(params.chandef.width);
3261 params.radar_required = true;
3262 }
3263
04f39047
SW		 3264 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3265 params.chandef.chan,
3266 CHAN_MODE_SHARED,
3267 radar_detect_width);
e4e32459
MK		 3268 if (err)
3269 return err;
3270
77765eaf
VT		 3271 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3272 params.acl = parse_acl_data(&rdev->wiphy, info);
3273 if (IS_ERR(params.acl))
3274 return PTR_ERR(params.acl);
3275 }
3276
c56589ed 3277 wdev_lock(wdev);
e35e4d28 3278 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3279 if (!err) {
683b6d3b 3280 wdev->preset_chandef = params.chandef;
8860020e 3281 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3282 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3283 wdev->ssid_len = params.ssid_len;
3284 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3285 }
c56589ed 3286 wdev_unlock(wdev);
77765eaf
VT		 3287
3288 kfree(params.acl);
3289
56d1893d 3290 return err;
ed1b6cc7
JB		 3291}
3292
8860020e
JB		 3293static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3294{
3295 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3296 struct net_device *dev = info->user_ptr[1];
3297 struct wireless_dev *wdev = dev->ieee80211_ptr;
3298 struct cfg80211_beacon_data params;
3299 int err;
3300
3301 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3302 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3303 return -EOPNOTSUPP;
3304
3305 if (!rdev->ops->change_beacon)
3306 return -EOPNOTSUPP;
3307
3308 if (!wdev->beacon_interval)
3309 return -EINVAL;
3310
a1193be8 3311 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3312 if (err)
3313 return err;
3314
c56589ed
SW		 3315 wdev_lock(wdev);
3316 err = rdev_change_beacon(rdev, dev, &params);
3317 wdev_unlock(wdev);
3318
3319 return err;
8860020e
JB		 3320}
3321
3322static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3323{
4c476991
JB		 3324 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3325 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3326
60771780 3327 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3328}
3329
5727ef1b
JB		 3330static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3331 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3332 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3333 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3334 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3335 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3336 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3337};
3338
eccb8e8f 3339static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3340 enum nl80211_iftype iftype,
eccb8e8f 3341 struct station_parameters *params)
5727ef1b
JB		 3342{
3343 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3344 struct nlattr *nla;
5727ef1b
JB		 3345 int flag;
3346
eccb8e8f
JB		 3347 /*
3348 * Try parsing the new attribute first so userspace
3349 * can specify both for older kernels.
3350 */
3351 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3352 if (nla) {
3353 struct nl80211_sta_flag_update *sta_flags;
3354
3355 sta_flags = nla_data(nla);
3356 params->sta_flags_mask = sta_flags->mask;
3357 params->sta_flags_set = sta_flags->set;
77ee7c89 3358 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3359 if ((params->sta_flags_mask |
3360 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3361 return -EINVAL;
3362 return 0;
3363 }
3364
3365 /* if present, parse the old attribute */
5727ef1b 3366
eccb8e8f 3367 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3368 if (!nla)
3369 return 0;
3370
3371 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3372 nla, sta_flags_policy))
3373 return -EINVAL;
3374
bdd3ae3d
JB		 3375 /*
3376 * Only allow certain flags for interface types so that
3377 * other attributes are silently ignored. Remember that
3378 * this is backward compatibility code with old userspace
3379 * and shouldn't be hit in other cases anyway.
3380 */
3381 switch (iftype) {
3382 case NL80211_IFTYPE_AP:
3383 case NL80211_IFTYPE_AP_VLAN:
3384 case NL80211_IFTYPE_P2P_GO:
3385 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3386 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3387 BIT(NL80211_STA_FLAG_WME) |
3388 BIT(NL80211_STA_FLAG_MFP);
3389 break;
3390 case NL80211_IFTYPE_P2P_CLIENT:
3391 case NL80211_IFTYPE_STATION:
3392 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3393 BIT(NL80211_STA_FLAG_TDLS_PEER);
3394 break;
3395 case NL80211_IFTYPE_MESH_POINT:
3396 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3397 BIT(NL80211_STA_FLAG_MFP) |
3398 BIT(NL80211_STA_FLAG_AUTHORIZED);
3399 default:
3400 return -EINVAL;
3401 }
5727ef1b 3402
3383b5a6
JB		 3403 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3404 if (flags[flag]) {
eccb8e8f 3405 params->sta_flags_set |= (1<<flag);
5727ef1b 3406
3383b5a6
JB		 3407 /* no longer support new API additions in old API */
3408 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3409 return -EINVAL;
3410 }
3411 }
3412
5727ef1b
JB		 3413 return 0;
3414}
3415
c8dcfd8a
FF		 3416static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3417 int attr)
3418{
3419 struct nlattr *rate;
8eb41c8d
VK		 3420 u32 bitrate;
3421 u16 bitrate_compat;
c8dcfd8a
FF		 3422
3423 rate = nla_nest_start(msg, attr);
3424 if (!rate)
db9c64cf 3425 return false;
c8dcfd8a
FF		 3426
3427 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3428 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3429 /* report 16-bit bitrate only if we can */
3430 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3431 if (bitrate > 0 &&
3432 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3433 return false;
3434 if (bitrate_compat > 0 &&
3435 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3436 return false;
3437
3438 if (info->flags & RATE_INFO_FLAGS_MCS) {
3439 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3440 return false;
3441 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3442 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3443 return false;
3444 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3445 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3446 return false;
3447 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3448 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3449 return false;
3450 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3451 return false;
3452 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3453 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3454 return false;
3455 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3456 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3457 return false;
3458 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3459 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3460 return false;
3461 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3462 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3463 return false;
3464 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3465 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3466 return false;
3467 }
c8dcfd8a
FF		 3468
3469 nla_nest_end(msg, rate);
3470 return true;
c8dcfd8a
FF		 3471}
3472
119363c7
FF		 3473static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3474 int id)
3475{
3476 void *attr;
3477 int i = 0;
3478
3479 if (!mask)
3480 return true;
3481
3482 attr = nla_nest_start(msg, id);
3483 if (!attr)
3484 return false;
3485
3486 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3487 if (!(mask & BIT(i)))
3488 continue;
3489
3490 if (nla_put_u8(msg, i, signal[i]))
3491 return false;
3492 }
3493
3494 nla_nest_end(msg, attr);
3495
3496 return true;
3497}
3498
15e47304 3499static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3500 int flags,
3501 struct cfg80211_registered_device *rdev,
3502 struct net_device *dev,
98b62183 3503 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3504{
3505 void *hdr;
f4263c98 3506 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3507
15e47304 3508 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3509 if (!hdr)
3510 return -1;
3511
9360ffd1
DM		 3512 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3513 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3514 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3515 goto nla_put_failure;
f5ea9120 3516
2ec600d6
LCC		 3517 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3518 if (!sinfoattr)
fd5b74dc 3519 goto nla_put_failure;
9360ffd1
DM		 3520 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3521 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3522 sinfo->connected_time))
3523 goto nla_put_failure;
3524 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3525 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3526 sinfo->inactive_time))
3527 goto nla_put_failure;
42745e03
VK		 3528 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3529 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3530 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3531 (u32)sinfo->rx_bytes))
9360ffd1 3532 goto nla_put_failure;
42745e03 3533 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3534 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3535 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3536 (u32)sinfo->tx_bytes))
3537 goto nla_put_failure;
3538 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3539 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3540 sinfo->rx_bytes))
3541 goto nla_put_failure;
3542 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3543 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3544 sinfo->tx_bytes))
3545 goto nla_put_failure;
3546 if ((sinfo->filled & STATION_INFO_LLID) &&
3547 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3548 goto nla_put_failure;
3549 if ((sinfo->filled & STATION_INFO_PLID) &&
3550 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3551 goto nla_put_failure;
3552 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3553 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3554 sinfo->plink_state))
3555 goto nla_put_failure;
66266b3a
JL		 3556 switch (rdev->wiphy.signal_type) {
3557 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3558 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3559 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3560 sinfo->signal))
3561 goto nla_put_failure;
3562 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3563 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3564 sinfo->signal_avg))
3565 goto nla_put_failure;
66266b3a
JL		 3566 break;
3567 default:
3568 break;
3569 }
119363c7
FF		 3570 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3571 if (!nl80211_put_signal(msg, sinfo->chains,
3572 sinfo->chain_signal,
3573 NL80211_STA_INFO_CHAIN_SIGNAL))
3574 goto nla_put_failure;
3575 }
3576 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3577 if (!nl80211_put_signal(msg, sinfo->chains,
3578 sinfo->chain_signal_avg,
3579 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3580 goto nla_put_failure;
3581 }
420e7fab 3582 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3583 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3584 NL80211_STA_INFO_TX_BITRATE))
3585 goto nla_put_failure;
3586 }
3587 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3588 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3589 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3590 goto nla_put_failure;
420e7fab 3591 }
9360ffd1
DM		 3592 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3593 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3594 sinfo->rx_packets))
3595 goto nla_put_failure;
3596 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3597 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3598 sinfo->tx_packets))
3599 goto nla_put_failure;
3600 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3601 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3602 sinfo->tx_retries))
3603 goto nla_put_failure;
3604 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3605 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3606 sinfo->tx_failed))
3607 goto nla_put_failure;
3608 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3609 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3610 sinfo->beacon_loss_count))
3611 goto nla_put_failure;
3b1c5a53
MP		 3612 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3613 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3614 sinfo->local_pm))
3615 goto nla_put_failure;
3616 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3617 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3618 sinfo->peer_pm))
3619 goto nla_put_failure;
3620 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3621 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3622 sinfo->nonpeer_pm))
3623 goto nla_put_failure;
f4263c98
PS		 3624 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3625 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3626 if (!bss_param)
3627 goto nla_put_failure;
3628
9360ffd1
DM		 3629 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3630 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3631 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3632 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3633 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3634 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3635 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3636 sinfo->bss_param.dtim_period) ||
3637 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3638 sinfo->bss_param.beacon_interval))
3639 goto nla_put_failure;
f4263c98
PS		 3640
3641 nla_nest_end(msg, bss_param);
3642 }
9360ffd1
DM		 3643 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3644 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3645 sizeof(struct nl80211_sta_flag_update),
3646 &sinfo->sta_flags))
3647 goto nla_put_failure;
7eab0f64
JL		 3648 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3649 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3650 sinfo->t_offset))
3651 goto nla_put_failure;
2ec600d6 3652 nla_nest_end(msg, sinfoattr);
fd5b74dc 3653
9360ffd1
DM		 3654 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3655 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3656 sinfo->assoc_req_ies))
3657 goto nla_put_failure;
50d3dfb7 3658
fd5b74dc
JB		 3659 return genlmsg_end(msg, hdr);
3660
3661 nla_put_failure:
bc3ed28c
TG		 3662 genlmsg_cancel(msg, hdr);
3663 return -EMSGSIZE;
fd5b74dc
JB		 3664}
3665
2ec600d6 3666static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3667 struct netlink_callback *cb)
2ec600d6 3668{
2ec600d6
LCC		 3669 struct station_info sinfo;
3670 struct cfg80211_registered_device *dev;
97990a06 3671 struct wireless_dev *wdev;
2ec600d6 3672 u8 mac_addr[ETH_ALEN];
97990a06 3673 int sta_idx = cb->args[2];
2ec600d6 3674 int err;
2ec600d6 3675
97990a06 3676 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3677 if (err)
3678 return err;
bba95fef 3679
97990a06
JB		 3680 if (!wdev->netdev) {
3681 err = -EINVAL;
3682 goto out_err;
3683 }
3684
bba95fef 3685 if (!dev->ops->dump_station) {
eec60b03 3686 err = -EOPNOTSUPP;
bba95fef
JB		 3687 goto out_err;
3688 }
3689
bba95fef 3690 while (1) {
f612cedf 3691 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3692 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3693 mac_addr, &sinfo);
bba95fef
JB		 3694 if (err == -ENOENT)
3695 break;
3696 if (err)
3b85875a 3697 goto out_err;
bba95fef
JB		 3698
3699 if (nl80211_send_station(skb,
15e47304 3700 NETLINK_CB(cb->skb).portid,
bba95fef 3701 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3702 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3703 &sinfo) < 0)
3704 goto out;
3705
3706 sta_idx++;
3707 }
3708
3709
3710 out:
97990a06 3711 cb->args[2] = sta_idx;
bba95fef 3712 err = skb->len;
bba95fef 3713 out_err:
97990a06 3714 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3715
3716 return err;
2ec600d6 3717}
fd5b74dc 3718
5727ef1b
JB		 3719static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3720{
4c476991
JB		 3721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3722 struct net_device *dev = info->user_ptr[1];
2ec600d6 3723 struct station_info sinfo;
fd5b74dc
JB		 3724 struct sk_buff *msg;
3725 u8 *mac_addr = NULL;
4c476991 3726 int err;
fd5b74dc 3727
2ec600d6 3728 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3729
3730 if (!info->attrs[NL80211_ATTR_MAC])
3731 return -EINVAL;
3732
3733 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3734
4c476991
JB		 3735 if (!rdev->ops->get_station)
3736 return -EOPNOTSUPP;
3b85875a 3737
e35e4d28 3738 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3739 if (err)
4c476991 3740 return err;
2ec600d6 3741
fd2120ca 3742 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3743 if (!msg)
4c476991 3744 return -ENOMEM;
fd5b74dc 3745
15e47304 3746 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3747 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3748 nlmsg_free(msg);
3749 return -ENOBUFS;
3750 }
3b85875a 3751
4c476991 3752 return genlmsg_reply(msg, info);
5727ef1b
JB		 3753}
3754
77ee7c89
JB		 3755int cfg80211_check_station_change(struct wiphy *wiphy,
3756 struct station_parameters *params,
3757 enum cfg80211_station_type statype)
3758{
3759 if (params->listen_interval != -1)
3760 return -EINVAL;
3761 if (params->aid)
3762 return -EINVAL;
3763
3764 /* When you run into this, adjust the code below for the new flag */
3765 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3766
3767 switch (statype) {
eef941e6
TP		 3768 case CFG80211_STA_MESH_PEER_KERNEL:
3769 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3770 /*
3771 * No ignoring the TDLS flag here -- the userspace mesh
3772 * code doesn't have the bug of including TDLS in the
3773 * mask everywhere.
3774 */
3775 if (params->sta_flags_mask &
3776 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3777 BIT(NL80211_STA_FLAG_MFP) |
3778 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3779 return -EINVAL;
3780 break;
3781 case CFG80211_STA_TDLS_PEER_SETUP:
3782 case CFG80211_STA_TDLS_PEER_ACTIVE:
3783 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3784 return -EINVAL;
3785 /* ignore since it can't change */
3786 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3787 break;
3788 default:
3789 /* disallow mesh-specific things */
3790 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3791 return -EINVAL;
3792 if (params->local_pm)
3793 return -EINVAL;
3794 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3795 return -EINVAL;
3796 }
3797
3798 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3799 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3800 /* TDLS can't be set, ... */
3801 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3802 return -EINVAL;
3803 /*
3804 * ... but don't bother the driver with it. This works around
3805 * a hostapd/wpa_supplicant issue -- it always includes the
3806 * TLDS_PEER flag in the mask even for AP mode.
3807 */
3808 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3809 }
3810
3811 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3812 /* reject other things that can't change */
3813 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3814 return -EINVAL;
3815 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3816 return -EINVAL;
3817 if (params->supported_rates)
3818 return -EINVAL;
3819 if (params->ext_capab || params->ht_capa || params->vht_capa)
3820 return -EINVAL;
3821 }
3822
3823 if (statype != CFG80211_STA_AP_CLIENT) {
3824 if (params->vlan)
3825 return -EINVAL;
3826 }
3827
3828 switch (statype) {
3829 case CFG80211_STA_AP_MLME_CLIENT:
3830 /* Use this only for authorizing/unauthorizing a station */
3831 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3832 return -EOPNOTSUPP;
3833 break;
3834 case CFG80211_STA_AP_CLIENT:
3835 /* accept only the listed bits */
3836 if (params->sta_flags_mask &
3837 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3838 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3839 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3840 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3841 BIT(NL80211_STA_FLAG_WME) |
3842 BIT(NL80211_STA_FLAG_MFP)))
3843 return -EINVAL;
3844
3845 /* but authenticated/associated only if driver handles it */
3846 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3847 params->sta_flags_mask &
3848 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3849 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3850 return -EINVAL;
3851 break;
3852 case CFG80211_STA_IBSS:
3853 case CFG80211_STA_AP_STA:
3854 /* reject any changes other than AUTHORIZED */
3855 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3856 return -EINVAL;
3857 break;
3858 case CFG80211_STA_TDLS_PEER_SETUP:
3859 /* reject any changes other than AUTHORIZED or WME */
3860 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3861 BIT(NL80211_STA_FLAG_WME)))
3862 return -EINVAL;
3863 /* force (at least) rates when authorizing */
3864 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3865 !params->supported_rates)
3866 return -EINVAL;
3867 break;
3868 case CFG80211_STA_TDLS_PEER_ACTIVE:
3869 /* reject any changes */
3870 return -EINVAL;
eef941e6 3871 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3872 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3873 return -EINVAL;
3874 break;
eef941e6 3875 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3876 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3877 return -EINVAL;
3878 break;
3879 }
3880
3881 return 0;
3882}
3883EXPORT_SYMBOL(cfg80211_check_station_change);
3884
5727ef1b 3885/*
c258d2de 3886 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3887 */
80b99899
JB		 3888static struct net_device *get_vlan(struct genl_info *info,
3889 struct cfg80211_registered_device *rdev)
5727ef1b 3890{
463d0183 3891 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3892 struct net_device *v;
3893 int ret;
3894
3895 if (!vlanattr)
3896 return NULL;
3897
3898 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3899 if (!v)
3900 return ERR_PTR(-ENODEV);
3901
3902 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3903 ret = -EINVAL;
3904 goto error;
5727ef1b 3905 }
80b99899 3906
77ee7c89
JB		 3907 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3908 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3909 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3910 ret = -EINVAL;
3911 goto error;
3912 }
3913
80b99899
JB		 3914 if (!netif_running(v)) {
3915 ret = -ENETDOWN;
3916 goto error;
3917 }
3918
3919 return v;
3920 error:
3921 dev_put(v);
3922 return ERR_PTR(ret);
5727ef1b
JB		 3923}
3924
df881293
JM		 3925static struct nla_policy
3926nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3927 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3928 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3929};
3930
ff276691
JB		 3931static int nl80211_parse_sta_wme(struct genl_info *info,
3932 struct station_parameters *params)
df881293 3933{
df881293
JM		 3934 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3935 struct nlattr *nla;
3936 int err;
3937
df881293
JM		 3938 /* parse WME attributes if present */
3939 if (!info->attrs[NL80211_ATTR_STA_WME])
3940 return 0;
3941
3942 nla = info->attrs[NL80211_ATTR_STA_WME];
3943 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3944 nl80211_sta_wme_policy);
3945 if (err)
3946 return err;
3947
3948 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3949 params->uapsd_queues = nla_get_u8(
3950 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3951 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3952 return -EINVAL;
3953
3954 if (tb[NL80211_STA_WME_MAX_SP])
3955 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3956
3957 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3958 return -EINVAL;
3959
3960 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3961
3962 return 0;
3963}
3964
c01fc9ad
SD		 3965static int nl80211_parse_sta_channel_info(struct genl_info *info,
3966 struct station_parameters *params)
3967{
3968 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
3969 params->supported_channels =
3970 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3971 params->supported_channels_len =
3972 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3973 /*
3974 * Need to include at least one (first channel, number of
3975 * channels) tuple for each subband, and must have proper
3976 * tuples for the rest of the data as well.
3977 */
3978 if (params->supported_channels_len < 2)
3979 return -EINVAL;
3980 if (params->supported_channels_len % 2)
3981 return -EINVAL;
3982 }
3983
3984 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
3985 params->supported_oper_classes =
3986 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3987 params->supported_oper_classes_len =
3988 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3989 /*
3990 * The value of the Length field of the Supported Operating
3991 * Classes element is between 2 and 253.
3992 */
3993 if (params->supported_oper_classes_len < 2 ||
3994 params->supported_oper_classes_len > 253)
3995 return -EINVAL;
3996 }
3997 return 0;
3998}
3999
ff276691
JB		 4000static int nl80211_set_station_tdls(struct genl_info *info,
4001 struct station_parameters *params)
4002{
c01fc9ad 4003 int err;
ff276691 4004 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4005 if (info->attrs[NL80211_ATTR_PEER_AID])
4006 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4007 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4008 params->ht_capa =
4009 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4010 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4011 params->vht_capa =
4012 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4013
c01fc9ad
SD		 4014 err = nl80211_parse_sta_channel_info(info, params);
4015 if (err)
4016 return err;
4017
ff276691
JB		 4018 return nl80211_parse_sta_wme(info, params);
4019}
4020
5727ef1b
JB		 4021static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4022{
4c476991 4023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4024 struct net_device *dev = info->user_ptr[1];
5727ef1b 4025 struct station_parameters params;
77ee7c89
JB		 4026 u8 *mac_addr;
4027 int err;
5727ef1b
JB		 4028
4029 memset(&params, 0, sizeof(params));
4030
4031 params.listen_interval = -1;
4032
77ee7c89
JB		 4033 if (!rdev->ops->change_station)
4034 return -EOPNOTSUPP;
4035
5727ef1b
JB		 4036 if (info->attrs[NL80211_ATTR_STA_AID])
4037 return -EINVAL;
4038
4039 if (!info->attrs[NL80211_ATTR_MAC])
4040 return -EINVAL;
4041
4042 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4043
4044 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4045 params.supported_rates =
4046 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4047 params.supported_rates_len =
4048 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4049 }
4050
9d62a986
JM		 4051 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4052 params.capability =
4053 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4054 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4055 }
4056
4057 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4058 params.ext_capab =
4059 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4060 params.ext_capab_len =
4061 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4062 }
4063
df881293 4064 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4065 return -EINVAL;
36aedc90 4066
bdd3ae3d 4067 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4068 return -EINVAL;
4069
f8bacc21 4070 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4071 params.plink_action =
f8bacc21
JB		 4072 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4073 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4074 return -EINVAL;
4075 }
2ec600d6 4076
f8bacc21 4077 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4078 params.plink_state =
f8bacc21
JB		 4079 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4080 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4081 return -EINVAL;
4082 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4083 }
9c3990aa 4084
3b1c5a53
MP		 4085 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4086 enum nl80211_mesh_power_mode pm = nla_get_u32(
4087 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4088
4089 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4090 pm > NL80211_MESH_POWER_MAX)
4091 return -EINVAL;
4092
4093 params.local_pm = pm;
4094 }
4095
77ee7c89
JB		 4096 /* Include parameters for TDLS peer (will check later) */
4097 err = nl80211_set_station_tdls(info, &params);
4098 if (err)
4099 return err;
4100
4101 params.vlan = get_vlan(info, rdev);
4102 if (IS_ERR(params.vlan))
4103 return PTR_ERR(params.vlan);
4104
a97f4424
JB		 4105 switch (dev->ieee80211_ptr->iftype) {
4106 case NL80211_IFTYPE_AP:
4107 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4108 case NL80211_IFTYPE_P2P_GO:
074ac8df 4109 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4110 case NL80211_IFTYPE_STATION:
267335d6 4111 case NL80211_IFTYPE_ADHOC:
a97f4424 4112 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4113 break;
4114 default:
77ee7c89
JB		 4115 err = -EOPNOTSUPP;
4116 goto out_put_vlan;
034d655e
JB		 4117 }
4118
77ee7c89 4119 /* driver will call cfg80211_check_station_change() */
e35e4d28 4120 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4121
77ee7c89 4122 out_put_vlan:
5727ef1b
JB		 4123 if (params.vlan)
4124 dev_put(params.vlan);
3b85875a 4125
5727ef1b
JB		 4126 return err;
4127}
4128
4129static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4130{
4c476991 4131 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4132 int err;
4c476991 4133 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4134 struct station_parameters params;
4135 u8 *mac_addr = NULL;
4136
4137 memset(&params, 0, sizeof(params));
4138
984c311b
JB		 4139 if (!rdev->ops->add_station)
4140 return -EOPNOTSUPP;
4141
5727ef1b
JB		 4142 if (!info->attrs[NL80211_ATTR_MAC])
4143 return -EINVAL;
4144
5727ef1b
JB		 4145 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4146 return -EINVAL;
4147
4148 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4149 return -EINVAL;
4150
5e4b6f56
JM		 4151 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4152 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4153 return -EINVAL;
4154
5727ef1b
JB		 4155 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4156 params.supported_rates =
4157 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4158 params.supported_rates_len =
4159 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4160 params.listen_interval =
4161 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4162
3d124ea2 4163 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4164 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4165 else
4166 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4167 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4168 return -EINVAL;
51b50fbe 4169
9d62a986
JM		 4170 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4171 params.capability =
4172 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4173 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4174 }
4175
4176 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4177 params.ext_capab =
4178 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4179 params.ext_capab_len =
4180 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4181 }
4182
36aedc90
JM		 4183 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4184 params.ht_capa =
4185 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4186
f461be3e
MP		 4187 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4188 params.vht_capa =
4189 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4190
60f4a7b1
MK		 4191 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4192 params.opmode_notif_used = true;
4193 params.opmode_notif =
4194 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4195 }
4196
f8bacc21 4197 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4198 params.plink_action =
f8bacc21
JB		 4199 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4200 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4201 return -EINVAL;
4202 }
96b78dff 4203
c01fc9ad
SD		 4204 err = nl80211_parse_sta_channel_info(info, &params);
4205 if (err)
4206 return err;
4207
ff276691
JB		 4208 err = nl80211_parse_sta_wme(info, &params);
4209 if (err)
4210 return err;
bdd90d5e 4211
bdd3ae3d 4212 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4213 return -EINVAL;
4214
77ee7c89
JB		 4215 /* When you run into this, adjust the code below for the new flag */
4216 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4217
bdd90d5e
JB		 4218 switch (dev->ieee80211_ptr->iftype) {
4219 case NL80211_IFTYPE_AP:
4220 case NL80211_IFTYPE_AP_VLAN:
4221 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4222 /* ignore WME attributes if iface/sta is not capable */
4223 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4224 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4225 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4226
bdd90d5e 4227 /* TDLS peers cannot be added */
3d124ea2
JM		 4228 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4229 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4230 return -EINVAL;
bdd90d5e
JB		 4231 /* but don't bother the driver with it */
4232 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4233
d582cffb
JB		 4234 /* allow authenticated/associated only if driver handles it */
4235 if (!(rdev->wiphy.features &
4236 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4237 params.sta_flags_mask &
4238 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4239 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4240 return -EINVAL;
4241
bdd90d5e
JB		 4242 /* must be last in here for error handling */
4243 params.vlan = get_vlan(info, rdev);
4244 if (IS_ERR(params.vlan))
4245 return PTR_ERR(params.vlan);
4246 break;
4247 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4248 /* ignore uAPSD data */
4249 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4250
d582cffb
JB		 4251 /* associated is disallowed */
4252 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4253 return -EINVAL;
bdd90d5e 4254 /* TDLS peers cannot be added */
3d124ea2
JM		 4255 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4256 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4257 return -EINVAL;
4258 break;
4259 case NL80211_IFTYPE_STATION:
93d08f0b 4260 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4261 /* ignore uAPSD data */
4262 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4263
77ee7c89
JB		 4264 /* these are disallowed */
4265 if (params.sta_flags_mask &
4266 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4267 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4268 return -EINVAL;
bdd90d5e
JB		 4269 /* Only TDLS peers can be added */
4270 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4271 return -EINVAL;
4272 /* Can only add if TDLS ... */
4273 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4274 return -EOPNOTSUPP;
4275 /* ... with external setup is supported */
4276 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4277 return -EOPNOTSUPP;
77ee7c89
JB		 4278 /*
4279 * Older wpa_supplicant versions always mark the TDLS peer
4280 * as authorized, but it shouldn't yet be.
4281 */
4282 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4283 break;
4284 default:
4285 return -EOPNOTSUPP;
c75786c9
EP		 4286 }
4287
bdd90d5e 4288 /* be aware of params.vlan when changing code here */
5727ef1b 4289
e35e4d28 4290 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4291
5727ef1b
JB		 4292 if (params.vlan)
4293 dev_put(params.vlan);
5727ef1b
JB		 4294 return err;
4295}
4296
4297static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4298{
4c476991
JB		 4299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4300 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4301 u8 *mac_addr = NULL;
4302
4303 if (info->attrs[NL80211_ATTR_MAC])
4304 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4305
e80cf853 4306 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4307 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4308 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4309 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4310 return -EINVAL;
5727ef1b 4311
4c476991
JB		 4312 if (!rdev->ops->del_station)
4313 return -EOPNOTSUPP;
3b85875a 4314
e35e4d28 4315 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4316}
4317
15e47304 4318static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4319 int flags, struct net_device *dev,
4320 u8 *dst, u8 *next_hop,
4321 struct mpath_info *pinfo)
4322{
4323 void *hdr;
4324 struct nlattr *pinfoattr;
4325
15e47304 4326 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4327 if (!hdr)
4328 return -1;
4329
9360ffd1
DM		 4330 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4331 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4332 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4333 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4334 goto nla_put_failure;
f5ea9120 4335
2ec600d6
LCC		 4336 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4337 if (!pinfoattr)
4338 goto nla_put_failure;
9360ffd1
DM		 4339 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4340 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4341 pinfo->frame_qlen))
4342 goto nla_put_failure;
4343 if (((pinfo->filled & MPATH_INFO_SN) &&
4344 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4345 ((pinfo->filled & MPATH_INFO_METRIC) &&
4346 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4347 pinfo->metric)) ||
4348 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4349 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4350 pinfo->exptime)) ||
4351 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4352 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4353 pinfo->flags)) ||
4354 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4355 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4356 pinfo->discovery_timeout)) ||
4357 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4358 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4359 pinfo->discovery_retries)))
4360 goto nla_put_failure;
2ec600d6
LCC		 4361
4362 nla_nest_end(msg, pinfoattr);
4363
4364 return genlmsg_end(msg, hdr);
4365
4366 nla_put_failure:
bc3ed28c
TG		 4367 genlmsg_cancel(msg, hdr);
4368 return -EMSGSIZE;
2ec600d6
LCC		 4369}
4370
4371static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4372 struct netlink_callback *cb)
2ec600d6 4373{
2ec600d6
LCC		 4374 struct mpath_info pinfo;
4375 struct cfg80211_registered_device *dev;
97990a06 4376 struct wireless_dev *wdev;
2ec600d6
LCC		 4377 u8 dst[ETH_ALEN];
4378 u8 next_hop[ETH_ALEN];
97990a06 4379 int path_idx = cb->args[2];
2ec600d6 4380 int err;
2ec600d6 4381
97990a06 4382 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4383 if (err)
4384 return err;
bba95fef
JB		 4385
4386 if (!dev->ops->dump_mpath) {
eec60b03 4387 err = -EOPNOTSUPP;
bba95fef
JB		 4388 goto out_err;
4389 }
4390
97990a06 4391 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4392 err = -EOPNOTSUPP;
0448b5fc 4393 goto out_err;
eec60b03
JM		 4394 }
4395
bba95fef 4396 while (1) {
97990a06
JB		 4397 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4398 next_hop, &pinfo);
bba95fef 4399 if (err == -ENOENT)
2ec600d6 4400 break;
bba95fef 4401 if (err)
3b85875a 4402 goto out_err;
2ec600d6 4403
15e47304 4404 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4405 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4406 wdev->netdev, dst, next_hop,
bba95fef
JB		 4407 &pinfo) < 0)
4408 goto out;
2ec600d6 4409
bba95fef 4410 path_idx++;
2ec600d6 4411 }
2ec600d6 4412
2ec600d6 4413
bba95fef 4414 out:
97990a06 4415 cb->args[2] = path_idx;
bba95fef 4416 err = skb->len;
bba95fef 4417 out_err:
97990a06 4418 nl80211_finish_wdev_dump(dev);
bba95fef 4419 return err;
2ec600d6
LCC		 4420}
4421
4422static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4423{
4c476991 4424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4425 int err;
4c476991 4426 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4427 struct mpath_info pinfo;
4428 struct sk_buff *msg;
4429 u8 *dst = NULL;
4430 u8 next_hop[ETH_ALEN];
4431
4432 memset(&pinfo, 0, sizeof(pinfo));
4433
4434 if (!info->attrs[NL80211_ATTR_MAC])
4435 return -EINVAL;
4436
4437 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4438
4c476991
JB		 4439 if (!rdev->ops->get_mpath)
4440 return -EOPNOTSUPP;
2ec600d6 4441
4c476991
JB		 4442 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4443 return -EOPNOTSUPP;
eec60b03 4444
e35e4d28 4445 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4446 if (err)
4c476991 4447 return err;
2ec600d6 4448
fd2120ca 4449 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4450 if (!msg)
4c476991 4451 return -ENOMEM;
2ec600d6 4452
15e47304 4453 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4454 dev, dst, next_hop, &pinfo) < 0) {
4455 nlmsg_free(msg);
4456 return -ENOBUFS;
4457 }
3b85875a 4458
4c476991 4459 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4460}
4461
4462static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4463{
4c476991
JB		 4464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4465 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4466 u8 *dst = NULL;
4467 u8 *next_hop = NULL;
4468
4469 if (!info->attrs[NL80211_ATTR_MAC])
4470 return -EINVAL;
4471
4472 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4473 return -EINVAL;
4474
4475 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4476 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4477
4c476991
JB		 4478 if (!rdev->ops->change_mpath)
4479 return -EOPNOTSUPP;
35a8efe1 4480
4c476991
JB		 4481 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4482 return -EOPNOTSUPP;
2ec600d6 4483
e35e4d28 4484 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4485}
4c476991 4486
2ec600d6
LCC		 4487static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4488{
4c476991
JB		 4489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4490 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4491 u8 *dst = NULL;
4492 u8 *next_hop = NULL;
4493
4494 if (!info->attrs[NL80211_ATTR_MAC])
4495 return -EINVAL;
4496
4497 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4498 return -EINVAL;
4499
4500 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4501 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4502
4c476991
JB		 4503 if (!rdev->ops->add_mpath)
4504 return -EOPNOTSUPP;
35a8efe1 4505
4c476991
JB		 4506 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4507 return -EOPNOTSUPP;
2ec600d6 4508
e35e4d28 4509 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4510}
4511
4512static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4513{
4c476991
JB		 4514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4515 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4516 u8 *dst = NULL;
4517
4518 if (info->attrs[NL80211_ATTR_MAC])
4519 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4520
4c476991
JB		 4521 if (!rdev->ops->del_mpath)
4522 return -EOPNOTSUPP;
3b85875a 4523
e35e4d28 4524 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4525}
4526
9f1ba906
JM		 4527static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4528{
4c476991
JB		 4529 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4530 struct net_device *dev = info->user_ptr[1];
c56589ed 4531 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4532 struct bss_parameters params;
c56589ed 4533 int err;
9f1ba906
JM		 4534
4535 memset(&params, 0, sizeof(params));
4536 /* default to not changing parameters */
4537 params.use_cts_prot = -1;
4538 params.use_short_preamble = -1;
4539 params.use_short_slot_time = -1;
fd8aaaf3 4540 params.ap_isolate = -1;
50b12f59 4541 params.ht_opmode = -1;
53cabad7
JB		 4542 params.p2p_ctwindow = -1;
4543 params.p2p_opp_ps = -1;
9f1ba906
JM		 4544
4545 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4546 params.use_cts_prot =
4547 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4548 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4549 params.use_short_preamble =
4550 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4551 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4552 params.use_short_slot_time =
4553 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4554 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4555 params.basic_rates =
4556 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4557 params.basic_rates_len =
4558 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4559 }
fd8aaaf3
FF		 4560 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4561 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4562 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4563 params.ht_opmode =
4564 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4565
53cabad7
JB		 4566 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4567 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4568 return -EINVAL;
4569 params.p2p_ctwindow =
4570 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4571 if (params.p2p_ctwindow < 0)
4572 return -EINVAL;
4573 if (params.p2p_ctwindow != 0 &&
4574 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4575 return -EINVAL;
4576 }
4577
4578 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4579 u8 tmp;
4580
4581 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4582 return -EINVAL;
4583 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4584 if (tmp > 1)
4585 return -EINVAL;
4586 params.p2p_opp_ps = tmp;
4587 if (params.p2p_opp_ps &&
4588 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4589 return -EINVAL;
4590 }
4591
4c476991
JB		 4592 if (!rdev->ops->change_bss)
4593 return -EOPNOTSUPP;
9f1ba906 4594
074ac8df 4595 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4596 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4597 return -EOPNOTSUPP;
3b85875a 4598
c56589ed
SW		 4599 wdev_lock(wdev);
4600 err = rdev_change_bss(rdev, dev, &params);
4601 wdev_unlock(wdev);
4602
4603 return err;
9f1ba906
JM		 4604}
4605
b54452b0 4606static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4607 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4608 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4609 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4610 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4611 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4612 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4613};
4614
4615static int parse_reg_rule(struct nlattr *tb[],
4616 struct ieee80211_reg_rule *reg_rule)
4617{
4618 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4619 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4620
4621 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4622 return -EINVAL;
4623 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4624 return -EINVAL;
4625 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4626 return -EINVAL;
4627 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4628 return -EINVAL;
4629 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4630 return -EINVAL;
4631
4632 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4633
4634 freq_range->start_freq_khz =
4635 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4636 freq_range->end_freq_khz =
4637 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4638 freq_range->max_bandwidth_khz =
4639 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4640
4641 power_rule->max_eirp =
4642 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4643
4644 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4645 power_rule->max_antenna_gain =
4646 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4647
4648 return 0;
4649}
4650
4651static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4652{
4653 int r;
4654 char *data = NULL;
57b5ce07 4655 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4656
80778f18
LR		 4657 /*
4658 * You should only get this when cfg80211 hasn't yet initialized
4659 * completely when built-in to the kernel right between the time
4660 * window between nl80211_init() and regulatory_init(), if that is
4661 * even possible.
4662 */
458f4f9e 4663 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4664 return -EINPROGRESS;
80778f18 4665
fe33eb39
LR		 4666 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4667 return -EINVAL;
b2e1b302
LR		 4668
4669 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4670
57b5ce07
LR		 4671 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4672 user_reg_hint_type =
4673 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4674 else
4675 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4676
4677 switch (user_reg_hint_type) {
4678 case NL80211_USER_REG_HINT_USER:
4679 case NL80211_USER_REG_HINT_CELL_BASE:
4680 break;
4681 default:
4682 return -EINVAL;
4683 }
4684
4685 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4686
b2e1b302
LR		 4687 return r;
4688}
4689
24bdd9f4 4690static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4691 struct genl_info *info)
93da9cc1 4692{
4c476991 4693 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4694 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4695 struct wireless_dev *wdev = dev->ieee80211_ptr;
4696 struct mesh_config cur_params;
4697 int err = 0;
93da9cc1 4698 void *hdr;
4699 struct nlattr *pinfoattr;
4700 struct sk_buff *msg;
4701
29cbe68c
JB		 4702 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4703 return -EOPNOTSUPP;
4704
24bdd9f4 4705 if (!rdev->ops->get_mesh_config)
4c476991 4706 return -EOPNOTSUPP;
f3f92586 4707
29cbe68c
JB		 4708 wdev_lock(wdev);
4709 /* If not connected, get default parameters */
4710 if (!wdev->mesh_id_len)
4711 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4712 else
e35e4d28 4713 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4714 wdev_unlock(wdev);
4715
93da9cc1 4716 if (err)
4c476991 4717 return err;
93da9cc1 4718
4719 /* Draw up a netlink message to send back */
fd2120ca 4720 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4721 if (!msg)
4722 return -ENOMEM;
15e47304 4723 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4724 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4725 if (!hdr)
efe1cf0c 4726 goto out;
24bdd9f4 4727 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4728 if (!pinfoattr)
4729 goto nla_put_failure;
9360ffd1
DM		 4730 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4731 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4732 cur_params.dot11MeshRetryTimeout) ||
4733 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4734 cur_params.dot11MeshConfirmTimeout) ||
4735 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4736 cur_params.dot11MeshHoldingTimeout) ||
4737 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4738 cur_params.dot11MeshMaxPeerLinks) ||
4739 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4740 cur_params.dot11MeshMaxRetries) ||
4741 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4742 cur_params.dot11MeshTTL) ||
4743 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4744 cur_params.element_ttl) ||
4745 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4746 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4747 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4748 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4749 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4750 cur_params.dot11MeshHWMPmaxPREQretries) ||
4751 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4752 cur_params.path_refresh_time) ||
4753 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4754 cur_params.min_discovery_timeout) ||
4755 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4756 cur_params.dot11MeshHWMPactivePathTimeout) ||
4757 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4758 cur_params.dot11MeshHWMPpreqMinInterval) ||
4759 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4760 cur_params.dot11MeshHWMPperrMinInterval) ||
4761 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4762 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4763 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4764 cur_params.dot11MeshHWMPRootMode) ||
4765 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4766 cur_params.dot11MeshHWMPRannInterval) ||
4767 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4768 cur_params.dot11MeshGateAnnouncementProtocol) ||
4769 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4770 cur_params.dot11MeshForwarding) ||
4771 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4772 cur_params.rssi_threshold) ||
4773 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4774 cur_params.ht_opmode) ||
4775 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4776 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4777 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4778 cur_params.dot11MeshHWMProotInterval) ||
4779 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4780 cur_params.dot11MeshHWMPconfirmationInterval) ||
4781 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4782 cur_params.power_mode) ||
4783 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4784 cur_params.dot11MeshAwakeWindowDuration) ||
4785 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4786 cur_params.plink_timeout))
9360ffd1 4787 goto nla_put_failure;
93da9cc1 4788 nla_nest_end(msg, pinfoattr);
4789 genlmsg_end(msg, hdr);
4c476991 4790 return genlmsg_reply(msg, info);
93da9cc1 4791
3b85875a 4792 nla_put_failure:
93da9cc1 4793 genlmsg_cancel(msg, hdr);
efe1cf0c 4794 out:
d080e275 4795 nlmsg_free(msg);
4c476991 4796 return -ENOBUFS;
93da9cc1 4797}
4798
b54452b0 4799static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4800 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4801 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4802 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4803 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4804 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4805 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4806 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4807 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4808 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4809 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4810 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4811 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4812 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4813 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4814 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4815 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4816 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4817 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4818 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4819 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4820 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4821 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4822 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4823 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4824 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4825 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4826 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4827 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4828};
4829
c80d545d
JC		 4830static const struct nla_policy
4831 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4832 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4833 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4834 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4835 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4836 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4837 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4838 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4839 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4840 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4841};
4842
24bdd9f4 4843static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4844 struct mesh_config *cfg,
4845 u32 *mask_out)
93da9cc1 4846{
93da9cc1 4847 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4848 u32 mask = 0;
93da9cc1 4849
ea54fba2
MP		 4850#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4851do { \
4852 if (tb[attr]) { \
4853 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4854 return -EINVAL; \
4855 cfg->param = fn(tb[attr]); \
4856 mask |= (1 << (attr - 1)); \
4857 } \
4858} while (0)
bd90fdcc
JB		 4859
4860
24bdd9f4 4861 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4862 return -EINVAL;
4863 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4864 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4865 nl80211_meshconf_params_policy))
93da9cc1 4866 return -EINVAL;
4867
93da9cc1 4868 /* This makes sure that there aren't more than 32 mesh config
4869 * parameters (otherwise our bitfield scheme would not work.) */
4870 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4871
4872 /* Fill in the params struct */
ea54fba2 4873 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4874 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4875 nla_get_u16);
ea54fba2 4876 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4877 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4878 nla_get_u16);
ea54fba2 4879 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4880 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4881 nla_get_u16);
ea54fba2 4882 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4883 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4884 nla_get_u16);
ea54fba2 4885 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4886 mask, NL80211_MESHCONF_MAX_RETRIES,
4887 nla_get_u8);
ea54fba2 4888 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4889 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4890 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4891 mask, NL80211_MESHCONF_ELEMENT_TTL,
4892 nla_get_u8);
ea54fba2 4893 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4894 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4895 nla_get_u8);
ea54fba2
MP		 4896 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4897 1, 255, mask,
a4f606ea
CYY		 4898 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4899 nla_get_u32);
ea54fba2 4900 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4901 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4902 nla_get_u8);
ea54fba2 4903 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4904 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4905 nla_get_u32);
ea54fba2 4906 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4907 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4908 nla_get_u16);
ea54fba2
MP		 4909 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4910 1, 65535, mask,
a4f606ea
CYY		 4911 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4912 nla_get_u32);
93da9cc1 4913 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4914 1, 65535, mask,
4915 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4916 nla_get_u16);
dca7e943 4917 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4918 1, 65535, mask,
4919 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4920 nla_get_u16);
93da9cc1 4921 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4922 dot11MeshHWMPnetDiameterTraversalTime,
4923 1, 65535, mask,
a4f606ea
CYY		 4924 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4925 nla_get_u16);
ea54fba2
MP		 4926 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4927 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4928 nla_get_u8);
4929 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4930 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4931 nla_get_u16);
63c5723b 4932 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4933 dot11MeshGateAnnouncementProtocol, 0, 1,
4934 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4935 nla_get_u8);
ea54fba2 4936 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4937 mask, NL80211_MESHCONF_FORWARDING,
4938 nla_get_u8);
83374fe9 4939 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4940 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4941 nla_get_s32);
ea54fba2 4942 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4943 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4944 nla_get_u16);
4945 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4946 1, 65535, mask,
ac1073a6
CYY		 4947 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4948 nla_get_u32);
ea54fba2 4949 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4950 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4951 nla_get_u16);
4952 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4953 dot11MeshHWMPconfirmationInterval,
4954 1, 65535, mask,
728b19e5 4955 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4956 nla_get_u16);
3b1c5a53
MP		 4957 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4958 NL80211_MESH_POWER_ACTIVE,
4959 NL80211_MESH_POWER_MAX,
4960 mask, NL80211_MESHCONF_POWER_MODE,
4961 nla_get_u32);
4962 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4963 0, 65535, mask,
4964 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 4965 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4966 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4967 nla_get_u32);
bd90fdcc
JB		 4968 if (mask_out)
4969 *mask_out = mask;
c80d545d 4970
bd90fdcc
JB		 4971 return 0;
4972
4973#undef FILL_IN_MESH_PARAM_IF_SET
4974}
4975
c80d545d
JC		 4976static int nl80211_parse_mesh_setup(struct genl_info *info,
4977 struct mesh_setup *setup)
4978{
bb2798d4 4979 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4980 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4981
4982 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4983 return -EINVAL;
4984 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4985 info->attrs[NL80211_ATTR_MESH_SETUP],
4986 nl80211_mesh_setup_params_policy))
4987 return -EINVAL;
4988
d299a1f2
JC		 4989 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4990 setup->sync_method =
4991 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4992 IEEE80211_SYNC_METHOD_VENDOR :
4993 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4994
c80d545d
JC		 4995 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4996 setup->path_sel_proto =
4997 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4998 IEEE80211_PATH_PROTOCOL_VENDOR :
4999 IEEE80211_PATH_PROTOCOL_HWMP;
5000
5001 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5002 setup->path_metric =
5003 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5004 IEEE80211_PATH_METRIC_VENDOR :
5005 IEEE80211_PATH_METRIC_AIRTIME;
5006
581a8b0f
JC		 5007
5008 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5009 struct nlattr *ieattr =
581a8b0f 5010 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5011 if (!is_valid_ie_attr(ieattr))
5012 return -EINVAL;
581a8b0f
JC		 5013 setup->ie = nla_data(ieattr);
5014 setup->ie_len = nla_len(ieattr);
c80d545d 5015 }
bb2798d4
TP		 5016 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5017 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5018 return -EINVAL;
5019 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5020 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5021 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5022 if (setup->is_secure)
5023 setup->user_mpm = true;
c80d545d 5024
6e16d90b
CT		 5025 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5026 if (!setup->user_mpm)
5027 return -EINVAL;
5028 setup->auth_id =
5029 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5030 }
5031
c80d545d
JC		 5032 return 0;
5033}
5034
24bdd9f4 5035static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5036 struct genl_info *info)
bd90fdcc
JB		 5037{
5038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5039 struct net_device *dev = info->user_ptr[1];
29cbe68c 5040 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5041 struct mesh_config cfg;
5042 u32 mask;
5043 int err;
5044
29cbe68c
JB		 5045 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5046 return -EOPNOTSUPP;
5047
24bdd9f4 5048 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5049 return -EOPNOTSUPP;
5050
24bdd9f4 5051 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5052 if (err)
5053 return err;
5054
29cbe68c
JB		 5055 wdev_lock(wdev);
5056 if (!wdev->mesh_id_len)
5057 err = -ENOLINK;
5058
5059 if (!err)
e35e4d28 5060 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5061
5062 wdev_unlock(wdev);
5063
5064 return err;
93da9cc1 5065}
5066
f130347c
LR		 5067static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5068{
458f4f9e 5069 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5070 struct sk_buff *msg;
5071 void *hdr = NULL;
5072 struct nlattr *nl_reg_rules;
5073 unsigned int i;
f130347c
LR		 5074
5075 if (!cfg80211_regdomain)
5fe231e8 5076 return -EINVAL;
f130347c 5077
fd2120ca 5078 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5079 if (!msg)
5080 return -ENOBUFS;
f130347c 5081
15e47304 5082 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5083 NL80211_CMD_GET_REG);
5084 if (!hdr)
efe1cf0c 5085 goto put_failure;
f130347c 5086
57b5ce07
LR		 5087 if (reg_last_request_cell_base() &&
5088 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5089 NL80211_USER_REG_HINT_CELL_BASE))
5090 goto nla_put_failure;
5091
458f4f9e
JB		 5092 rcu_read_lock();
5093 regdom = rcu_dereference(cfg80211_regdomain);
5094
5095 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5096 (regdom->dfs_region &&
5097 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5098 goto nla_put_failure_rcu;
5099
f130347c
LR		 5100 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5101 if (!nl_reg_rules)
458f4f9e 5102 goto nla_put_failure_rcu;
f130347c 5103
458f4f9e 5104 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5105 struct nlattr *nl_reg_rule;
5106 const struct ieee80211_reg_rule *reg_rule;
5107 const struct ieee80211_freq_range *freq_range;
5108 const struct ieee80211_power_rule *power_rule;
5109
458f4f9e 5110 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5111 freq_range = &reg_rule->freq_range;
5112 power_rule = &reg_rule->power_rule;
5113
5114 nl_reg_rule = nla_nest_start(msg, i);
5115 if (!nl_reg_rule)
458f4f9e 5116 goto nla_put_failure_rcu;
f130347c 5117
9360ffd1
DM		 5118 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5119 reg_rule->flags) ||
5120 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5121 freq_range->start_freq_khz) ||
5122 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5123 freq_range->end_freq_khz) ||
5124 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5125 freq_range->max_bandwidth_khz) ||
5126 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5127 power_rule->max_antenna_gain) ||
5128 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5129 power_rule->max_eirp))
458f4f9e 5130 goto nla_put_failure_rcu;
f130347c
LR		 5131
5132 nla_nest_end(msg, nl_reg_rule);
5133 }
458f4f9e 5134 rcu_read_unlock();
f130347c
LR		 5135
5136 nla_nest_end(msg, nl_reg_rules);
5137
5138 genlmsg_end(msg, hdr);
5fe231e8 5139 return genlmsg_reply(msg, info);
f130347c 5140
458f4f9e
JB		 5141nla_put_failure_rcu:
5142 rcu_read_unlock();
f130347c
LR		 5143nla_put_failure:
5144 genlmsg_cancel(msg, hdr);
efe1cf0c 5145put_failure:
d080e275 5146 nlmsg_free(msg);
5fe231e8 5147 return -EMSGSIZE;
f130347c
LR		 5148}
5149
b2e1b302
LR		 5150static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5151{
5152 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5153 struct nlattr *nl_reg_rule;
5154 char *alpha2 = NULL;
5155 int rem_reg_rules = 0, r = 0;
5156 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5157 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5158 struct ieee80211_regdomain *rd = NULL;
5159
5160 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5161 return -EINVAL;
5162
5163 if (!info->attrs[NL80211_ATTR_REG_RULES])
5164 return -EINVAL;
5165
5166 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5167
8b60b078
LR		 5168 if (info->attrs[NL80211_ATTR_DFS_REGION])
5169 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5170
b2e1b302 5171 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5172 rem_reg_rules) {
b2e1b302
LR		 5173 num_rules++;
5174 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5175 return -EINVAL;
b2e1b302
LR		 5176 }
5177
e438768f
LR		 5178 if (!reg_is_valid_request(alpha2))
5179 return -EINVAL;
5180
b2e1b302 5181 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5182 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5183
5184 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5185 if (!rd)
5186 return -ENOMEM;
b2e1b302
LR		 5187
5188 rd->n_reg_rules = num_rules;
5189 rd->alpha2[0] = alpha2[0];
5190 rd->alpha2[1] = alpha2[1];
5191
8b60b078
LR		 5192 /*
5193 * Disable DFS master mode if the DFS region was
5194 * not supported or known on this kernel.
5195 */
5196 if (reg_supported_dfs_region(dfs_region))
5197 rd->dfs_region = dfs_region;
5198
b2e1b302 5199 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5200 rem_reg_rules) {
b2e1b302 5201 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 5202 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5203 reg_rule_policy);
b2e1b302
LR		 5204 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5205 if (r)
5206 goto bad_reg;
5207
5208 rule_idx++;
5209
d0e18f83
LR		 5210 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5211 r = -EINVAL;
b2e1b302 5212 goto bad_reg;
d0e18f83 5213 }
b2e1b302
LR		 5214 }
5215
b2e1b302 5216 r = set_regdom(rd);
6913b49a 5217 /* set_regdom took ownership */
1a919318 5218 rd = NULL;
b2e1b302 5219
d2372b31 5220 bad_reg:
b2e1b302 5221 kfree(rd);
d0e18f83 5222 return r;
b2e1b302
LR		 5223}
5224
83f5e2cf
JB		 5225static int validate_scan_freqs(struct nlattr *freqs)
5226{
5227 struct nlattr *attr1, *attr2;
5228 int n_channels = 0, tmp1, tmp2;
5229
5230 nla_for_each_nested(attr1, freqs, tmp1) {
5231 n_channels++;
5232 /*
5233 * Some hardware has a limited channel list for
5234 * scanning, and it is pretty much nonsensical
5235 * to scan for a channel twice, so disallow that
5236 * and don't require drivers to check that the
5237 * channel list they get isn't longer than what
5238 * they can scan, as long as they can scan all
5239 * the channels they registered at once.
5240 */
5241 nla_for_each_nested(attr2, freqs, tmp2)
5242 if (attr1 != attr2 &&
5243 nla_get_u32(attr1) == nla_get_u32(attr2))
5244 return 0;
5245 }
5246
5247 return n_channels;
5248}
5249
2a519311
JB		 5250static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5251{
4c476991 5252 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5253 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5254 struct cfg80211_scan_request *request;
2a519311
JB		 5255 struct nlattr *attr;
5256 struct wiphy *wiphy;
83f5e2cf 5257 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5258 size_t ie_len;
2a519311 5259
f4a11bb0
JB		 5260 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5261 return -EINVAL;
5262
79c97e97 5263 wiphy = &rdev->wiphy;
2a519311 5264
4c476991
JB		 5265 if (!rdev->ops->scan)
5266 return -EOPNOTSUPP;
2a519311 5267
f9f47529
JB		 5268 if (rdev->scan_req) {
5269 err = -EBUSY;
5270 goto unlock;
5271 }
2a519311
JB		 5272
5273 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5274 n_channels = validate_scan_freqs(
5275 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5276 if (!n_channels) {
5277 err = -EINVAL;
5278 goto unlock;
5279 }
2a519311 5280 } else {
bdfbec2d 5281 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5282 }
5283
5284 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5285 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5286 n_ssids++;
5287
f9f47529
JB		 5288 if (n_ssids > wiphy->max_scan_ssids) {
5289 err = -EINVAL;
5290 goto unlock;
5291 }
2a519311 5292
70692ad2
JM		 5293 if (info->attrs[NL80211_ATTR_IE])
5294 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5295 else
5296 ie_len = 0;
5297
f9f47529
JB		 5298 if (ie_len > wiphy->max_scan_ie_len) {
5299 err = -EINVAL;
5300 goto unlock;
5301 }
18a83659 5302
2a519311 5303 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5304 + sizeof(*request->ssids) * n_ssids
5305 + sizeof(*request->channels) * n_channels
70692ad2 5306 + ie_len, GFP_KERNEL);
f9f47529
JB		 5307 if (!request) {
5308 err = -ENOMEM;
5309 goto unlock;
5310 }
2a519311 5311
2a519311 5312 if (n_ssids)
5ba63533 5313 request->ssids = (void *)&request->channels[n_channels];
2a519311 5314 request->n_ssids = n_ssids;
70692ad2
JM		 5315 if (ie_len) {
5316 if (request->ssids)
5317 request->ie = (void *)(request->ssids + n_ssids);
5318 else
5319 request->ie = (void *)(request->channels + n_channels);
5320 }
2a519311 5321
584991dc 5322 i = 0;
2a519311
JB		 5323 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5324 /* user specified, bail out if channel not found */
2a519311 5325 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5326 struct ieee80211_channel *chan;
5327
5328 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5329
5330 if (!chan) {
2a519311
JB		 5331 err = -EINVAL;
5332 goto out_free;
5333 }
584991dc
JB		 5334
5335 /* ignore disabled channels */
5336 if (chan->flags & IEEE80211_CHAN_DISABLED)
5337 continue;
5338
5339 request->channels[i] = chan;
2a519311
JB		 5340 i++;
5341 }
5342 } else {
34850ab2
JB		 5343 enum ieee80211_band band;
5344
2a519311 5345 /* all channels */
2a519311
JB		 5346 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5347 int j;
5348 if (!wiphy->bands[band])
5349 continue;
5350 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5351 struct ieee80211_channel *chan;
5352
5353 chan = &wiphy->bands[band]->channels[j];
5354
5355 if (chan->flags & IEEE80211_CHAN_DISABLED)
5356 continue;
5357
5358 request->channels[i] = chan;
2a519311
JB		 5359 i++;
5360 }
5361 }
5362 }
5363
584991dc
JB		 5364 if (!i) {
5365 err = -EINVAL;
5366 goto out_free;
5367 }
5368
5369 request->n_channels = i;
5370
2a519311
JB		 5371 i = 0;
5372 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5373 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5374 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5375 err = -EINVAL;
5376 goto out_free;
5377 }
57a27e1d 5378 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5379 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5380 i++;
5381 }
5382 }
5383
70692ad2
JM		 5384 if (info->attrs[NL80211_ATTR_IE]) {
5385 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5386 memcpy((void *)request->ie,
5387 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5388 request->ie_len);
5389 }
5390
34850ab2 5391 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5392 if (wiphy->bands[i])
5393 request->rates[i] =
5394 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5395
5396 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5397 nla_for_each_nested(attr,
5398 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5399 tmp) {
5400 enum ieee80211_band band = nla_type(attr);
5401
84404623 5402 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5403 err = -EINVAL;
5404 goto out_free;
5405 }
1b09cd82
FF		 5406
5407 if (!wiphy->bands[band])
5408 continue;
5409
34850ab2
JB		 5410 err = ieee80211_get_ratemask(wiphy->bands[band],
5411 nla_data(attr),
5412 nla_len(attr),
5413 &request->rates[band]);
5414 if (err)
5415 goto out_free;
5416 }
5417 }
5418
46856bbf 5419 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5420 request->flags = nla_get_u32(
5421 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5422 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5423 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5424 err = -EOPNOTSUPP;
5425 goto out_free;
5426 }
5427 }
ed473771 5428
e9f935e3
RM		 5429 request->no_cck =
5430 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5431
fd014284 5432 request->wdev = wdev;
79c97e97 5433 request->wiphy = &rdev->wiphy;
15d6030b 5434 request->scan_start = jiffies;
2a519311 5435
79c97e97 5436 rdev->scan_req = request;
e35e4d28 5437 err = rdev_scan(rdev, request);
2a519311 5438
463d0183 5439 if (!err) {
fd014284
JB		 5440 nl80211_send_scan_start(rdev, wdev);
5441 if (wdev->netdev)
5442 dev_hold(wdev->netdev);
4c476991 5443 } else {
2a519311 5444 out_free:
79c97e97 5445 rdev->scan_req = NULL;
2a519311
JB		 5446 kfree(request);
5447 }
3b85875a 5448
f9f47529 5449 unlock:
2a519311
JB		 5450 return err;
5451}
5452
807f8a8c
LC		 5453static int nl80211_start_sched_scan(struct sk_buff *skb,
5454 struct genl_info *info)
5455{
5456 struct cfg80211_sched_scan_request *request;
5457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5458 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5459 struct nlattr *attr;
5460 struct wiphy *wiphy;
a1f1c21c 5461 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5462 u32 interval;
807f8a8c
LC		 5463 enum ieee80211_band band;
5464 size_t ie_len;
a1f1c21c 5465 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5466
5467 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5468 !rdev->ops->sched_scan_start)
5469 return -EOPNOTSUPP;
5470
5471 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5472 return -EINVAL;
5473
bbe6ad6d
LC		 5474 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5475 return -EINVAL;
5476
5477 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5478 if (interval == 0)
5479 return -EINVAL;
5480
807f8a8c
LC		 5481 wiphy = &rdev->wiphy;
5482
5483 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5484 n_channels = validate_scan_freqs(
5485 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5486 if (!n_channels)
5487 return -EINVAL;
5488 } else {
bdfbec2d 5489 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5490 }
5491
5492 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5493 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5494 tmp)
5495 n_ssids++;
5496
93b6aa69 5497 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5498 return -EINVAL;
5499
a1f1c21c
LC		 5500 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5501 nla_for_each_nested(attr,
5502 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5503 tmp)
5504 n_match_sets++;
5505
5506 if (n_match_sets > wiphy->max_match_sets)
5507 return -EINVAL;
5508
807f8a8c
LC		 5509 if (info->attrs[NL80211_ATTR_IE])
5510 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5511 else
5512 ie_len = 0;
5513
5a865bad 5514 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5515 return -EINVAL;
5516
c10841ca
LC		 5517 if (rdev->sched_scan_req) {
5518 err = -EINPROGRESS;
5519 goto out;
5520 }
5521
807f8a8c 5522 request = kzalloc(sizeof(*request)
a2cd43c5 5523 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5524 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5525 + sizeof(*request->channels) * n_channels
807f8a8c 5526 + ie_len, GFP_KERNEL);
c10841ca
LC		 5527 if (!request) {
5528 err = -ENOMEM;
5529 goto out;
5530 }
807f8a8c
LC		 5531
5532 if (n_ssids)
5533 request->ssids = (void *)&request->channels[n_channels];
5534 request->n_ssids = n_ssids;
5535 if (ie_len) {
5536 if (request->ssids)
5537 request->ie = (void *)(request->ssids + n_ssids);
5538 else
5539 request->ie = (void *)(request->channels + n_channels);
5540 }
5541
a1f1c21c
LC		 5542 if (n_match_sets) {
5543 if (request->ie)
5544 request->match_sets = (void *)(request->ie + ie_len);
5545 else if (request->ssids)
5546 request->match_sets =
5547 (void *)(request->ssids + n_ssids);
5548 else
5549 request->match_sets =
5550 (void *)(request->channels + n_channels);
5551 }
5552 request->n_match_sets = n_match_sets;
5553
807f8a8c
LC		 5554 i = 0;
5555 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5556 /* user specified, bail out if channel not found */
5557 nla_for_each_nested(attr,
5558 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5559 tmp) {
5560 struct ieee80211_channel *chan;
5561
5562 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5563
5564 if (!chan) {
5565 err = -EINVAL;
5566 goto out_free;
5567 }
5568
5569 /* ignore disabled channels */
5570 if (chan->flags & IEEE80211_CHAN_DISABLED)
5571 continue;
5572
5573 request->channels[i] = chan;
5574 i++;
5575 }
5576 } else {
5577 /* all channels */
5578 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5579 int j;
5580 if (!wiphy->bands[band])
5581 continue;
5582 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5583 struct ieee80211_channel *chan;
5584
5585 chan = &wiphy->bands[band]->channels[j];
5586
5587 if (chan->flags & IEEE80211_CHAN_DISABLED)
5588 continue;
5589
5590 request->channels[i] = chan;
5591 i++;
5592 }
5593 }
5594 }
5595
5596 if (!i) {
5597 err = -EINVAL;
5598 goto out_free;
5599 }
5600
5601 request->n_channels = i;
5602
5603 i = 0;
5604 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5605 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5606 tmp) {
57a27e1d 5607 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5608 err = -EINVAL;
5609 goto out_free;
5610 }
57a27e1d 5611 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5612 memcpy(request->ssids[i].ssid, nla_data(attr),
5613 nla_len(attr));
807f8a8c
LC		 5614 i++;
5615 }
5616 }
5617
a1f1c21c
LC		 5618 i = 0;
5619 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5620 nla_for_each_nested(attr,
5621 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5622 tmp) {
88e920b4 5623 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5624
5625 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5626 nla_data(attr), nla_len(attr),
5627 nl80211_match_policy);
4a4ab0d7 5628 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5629 if (ssid) {
5630 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5631 err = -EINVAL;
5632 goto out_free;
5633 }
5634 memcpy(request->match_sets[i].ssid.ssid,
5635 nla_data(ssid), nla_len(ssid));
5636 request->match_sets[i].ssid.ssid_len =
5637 nla_len(ssid);
5638 }
88e920b4
TP		 5639 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5640 if (rssi)
5641 request->rssi_thold = nla_get_u32(rssi);
5642 else
5643 request->rssi_thold =
5644 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5645 i++;
5646 }
5647 }
5648
807f8a8c
LC		 5649 if (info->attrs[NL80211_ATTR_IE]) {
5650 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5651 memcpy((void *)request->ie,
5652 nla_data(info->attrs[NL80211_ATTR_IE]),
5653 request->ie_len);
5654 }
5655
46856bbf 5656 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5657 request->flags = nla_get_u32(
5658 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5659 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5660 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5661 err = -EOPNOTSUPP;
5662 goto out_free;
5663 }
5664 }
ed473771 5665
807f8a8c
LC		 5666 request->dev = dev;
5667 request->wiphy = &rdev->wiphy;
bbe6ad6d 5668 request->interval = interval;
15d6030b 5669 request->scan_start = jiffies;
807f8a8c 5670
e35e4d28 5671 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5672 if (!err) {
5673 rdev->sched_scan_req = request;
5674 nl80211_send_sched_scan(rdev, dev,
5675 NL80211_CMD_START_SCHED_SCAN);
5676 goto out;
5677 }
5678
5679out_free:
5680 kfree(request);
5681out:
5682 return err;
5683}
5684
5685static int nl80211_stop_sched_scan(struct sk_buff *skb,
5686 struct genl_info *info)
5687{
5688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5689
5690 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5691 !rdev->ops->sched_scan_stop)
5692 return -EOPNOTSUPP;
5693
5fe231e8 5694 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5695}
5696
04f39047
SW		 5697static int nl80211_start_radar_detection(struct sk_buff *skb,
5698 struct genl_info *info)
5699{
5700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5701 struct net_device *dev = info->user_ptr[1];
5702 struct wireless_dev *wdev = dev->ieee80211_ptr;
5703 struct cfg80211_chan_def chandef;
55f7435c 5704 enum nl80211_dfs_regions dfs_region;
04f39047
SW		 5705 int err;
5706
55f7435c
LR		 5707 dfs_region = reg_get_dfs_region(wdev->wiphy);
5708 if (dfs_region == NL80211_DFS_UNSET)
5709 return -EINVAL;
5710
04f39047
SW		 5711 err = nl80211_parse_chandef(rdev, info, &chandef);
5712 if (err)
5713 return err;
5714
ff311bc1
SW		 5715 if (netif_carrier_ok(dev))
5716 return -EBUSY;
5717
04f39047
SW		 5718 if (wdev->cac_started)
5719 return -EBUSY;
5720
5721 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5722 if (err < 0)
5723 return err;
5724
5725 if (err == 0)
5726 return -EINVAL;
5727
fe7c3a1f 5728 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5729 return -EINVAL;
5730
5731 if (!rdev->ops->start_radar_detection)
5732 return -EOPNOTSUPP;
5733
04f39047
SW		 5734 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5735 chandef.chan, CHAN_MODE_SHARED,
5736 BIT(chandef.width));
5737 if (err)
5fe231e8 5738 return err;
04f39047
SW		 5739
5740 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5741 if (!err) {
5742 wdev->channel = chandef.chan;
5743 wdev->cac_started = true;
5744 wdev->cac_start_time = jiffies;
5745 }
04f39047
SW		 5746 return err;
5747}
5748
16ef1fe2
SW		 5749static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5750{
5751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5752 struct net_device *dev = info->user_ptr[1];
5753 struct wireless_dev *wdev = dev->ieee80211_ptr;
5754 struct cfg80211_csa_settings params;
5755 /* csa_attrs is defined static to avoid waste of stack size - this
5756 * function is called under RTNL lock, so this should not be a problem.
5757 */
5758 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5759 u8 radar_detect_width = 0;
5760 int err;
ee4bc9e7 5761 bool need_new_beacon = false;
16ef1fe2
SW		 5762
5763 if (!rdev->ops->channel_switch ||
5764 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5765 return -EOPNOTSUPP;
5766
ee4bc9e7
SW		 5767 switch (dev->ieee80211_ptr->iftype) {
5768 case NL80211_IFTYPE_AP:
5769 case NL80211_IFTYPE_P2P_GO:
5770 need_new_beacon = true;
5771
5772 /* useless if AP is not running */
5773 if (!wdev->beacon_interval)
5774 return -EINVAL;
5775 break;
5776 case NL80211_IFTYPE_ADHOC:
c6da674a 5777 case NL80211_IFTYPE_MESH_POINT:
ee4bc9e7
SW		 5778 break;
5779 default:
16ef1fe2 5780 return -EOPNOTSUPP;
ee4bc9e7 5781 }
16ef1fe2
SW		 5782
5783 memset(&params, 0, sizeof(params));
5784
5785 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5786 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5787 return -EINVAL;
5788
5789 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5790 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5791 return -EINVAL;
5792
5793 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5794
ee4bc9e7
SW		 5795 if (!need_new_beacon)
5796 goto skip_beacons;
5797
16ef1fe2
SW		 5798 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5799 if (err)
5800 return err;
5801
5802 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5803 info->attrs[NL80211_ATTR_CSA_IES],
5804 nl80211_policy);
5805 if (err)
5806 return err;
5807
5808 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5809 if (err)
5810 return err;
5811
5812 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5813 return -EINVAL;
5814
5815 params.counter_offset_beacon =
5816 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5817 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5818 return -EINVAL;
5819
5820 /* sanity check - counters should be the same */
5821 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5822 params.count)
5823 return -EINVAL;
5824
5825 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5826 params.counter_offset_presp =
5827 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5828 if (params.counter_offset_presp >=
5829 params.beacon_csa.probe_resp_len)
5830 return -EINVAL;
5831
5832 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5833 params.count)
5834 return -EINVAL;
5835 }
5836
ee4bc9e7 5837skip_beacons:
16ef1fe2
SW		 5838 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5839 if (err)
5840 return err;
5841
5842 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
5843 return -EINVAL;
5844
ee4bc9e7 5845 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
5336fa88
SW		 5846 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO ||
5847 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC) {
ee4bc9e7
SW		 5848 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5849 &params.chandef);
5850 if (err < 0) {
5851 return err;
5852 } else if (err) {
5853 radar_detect_width = BIT(params.chandef.width);
5854 params.radar_required = true;
5855 }
16ef1fe2
SW		 5856 }
5857
5858 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5859 params.chandef.chan,
5860 CHAN_MODE_SHARED,
5861 radar_detect_width);
5862 if (err)
5863 return err;
5864
5865 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5866 params.block_tx = true;
5867
c56589ed
SW		 5868 wdev_lock(wdev);
5869 err = rdev_channel_switch(rdev, dev, &params);
5870 wdev_unlock(wdev);
5871
5872 return err;
16ef1fe2
SW		 5873}
5874
9720bb3a
JB		 5875static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5876 u32 seq, int flags,
2a519311 5877 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5878 struct wireless_dev *wdev,
5879 struct cfg80211_internal_bss *intbss)
2a519311 5880{
48ab905d 5881 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5882 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5883 void *hdr;
5884 struct nlattr *bss;
8cef2c9d 5885 bool tsf = false;
48ab905d
JB		 5886
5887 ASSERT_WDEV_LOCK(wdev);
2a519311 5888
15e47304 5889 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5890 NL80211_CMD_NEW_SCAN_RESULTS);
5891 if (!hdr)
5892 return -1;
5893
9720bb3a
JB		 5894 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5895
97990a06
JB		 5896 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5897 goto nla_put_failure;
5898 if (wdev->netdev &&
9360ffd1
DM		 5899 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5900 goto nla_put_failure;
97990a06
JB		 5901 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5902 goto nla_put_failure;
2a519311
JB		 5903
5904 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5905 if (!bss)
5906 goto nla_put_failure;
9360ffd1 5907 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5908 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5909 goto nla_put_failure;
9caf0364
JB		 5910
5911 rcu_read_lock();
5912 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5913 if (ies) {
5914 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5915 goto fail_unlock_rcu;
5916 tsf = true;
5917 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5918 ies->len, ies->data))
5919 goto fail_unlock_rcu;
9caf0364
JB		 5920 }
5921 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5922 if (ies) {
5923 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5924 goto fail_unlock_rcu;
5925 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5926 ies->len, ies->data))
5927 goto fail_unlock_rcu;
9caf0364
JB		 5928 }
5929 rcu_read_unlock();
5930
9360ffd1
DM		 5931 if (res->beacon_interval &&
5932 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5933 goto nla_put_failure;
5934 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5935 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 5936 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 5937 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5938 jiffies_to_msecs(jiffies - intbss->ts)))
5939 goto nla_put_failure;
2a519311 5940
77965c97 5941 switch (rdev->wiphy.signal_type) {
2a519311 5942 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5943 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5944 goto nla_put_failure;
2a519311
JB		 5945 break;
5946 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5947 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5948 goto nla_put_failure;
2a519311
JB		 5949 break;
5950 default:
5951 break;
5952 }
5953
48ab905d 5954 switch (wdev->iftype) {
074ac8df 5955 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5956 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5957 if (intbss == wdev->current_bss &&
5958 nla_put_u32(msg, NL80211_BSS_STATUS,
5959 NL80211_BSS_STATUS_ASSOCIATED))
5960 goto nla_put_failure;
48ab905d
JB		 5961 break;
5962 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5963 if (intbss == wdev->current_bss &&
5964 nla_put_u32(msg, NL80211_BSS_STATUS,
5965 NL80211_BSS_STATUS_IBSS_JOINED))
5966 goto nla_put_failure;
48ab905d
JB		 5967 break;
5968 default:
5969 break;
5970 }
5971
2a519311
JB		 5972 nla_nest_end(msg, bss);
5973
5974 return genlmsg_end(msg, hdr);
5975
8cef2c9d
JB		 5976 fail_unlock_rcu:
5977 rcu_read_unlock();
2a519311
JB		 5978 nla_put_failure:
5979 genlmsg_cancel(msg, hdr);
5980 return -EMSGSIZE;
5981}
5982
97990a06 5983static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5984{
48ab905d 5985 struct cfg80211_registered_device *rdev;
2a519311 5986 struct cfg80211_internal_bss *scan;
48ab905d 5987 struct wireless_dev *wdev;
97990a06 5988 int start = cb->args[2], idx = 0;
2a519311
JB		 5989 int err;
5990
97990a06 5991 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5992 if (err)
5993 return err;
2a519311 5994
48ab905d
JB		 5995 wdev_lock(wdev);
5996 spin_lock_bh(&rdev->bss_lock);
5997 cfg80211_bss_expire(rdev);
5998
9720bb3a
JB		 5999 cb->seq = rdev->bss_generation;
6000
48ab905d 6001 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6002 if (++idx <= start)
6003 continue;
9720bb3a 6004 if (nl80211_send_bss(skb, cb,
2a519311 6005 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6006 rdev, wdev, scan) < 0) {
2a519311 6007 idx--;
67748893 6008 break;
2a519311
JB		 6009 }
6010 }
6011
48ab905d
JB		 6012 spin_unlock_bh(&rdev->bss_lock);
6013 wdev_unlock(wdev);
2a519311 6014
97990a06
JB		 6015 cb->args[2] = idx;
6016 nl80211_finish_wdev_dump(rdev);
2a519311 6017
67748893 6018 return skb->len;
2a519311
JB		 6019}
6020
15e47304 6021static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6022 int flags, struct net_device *dev,
6023 struct survey_info *survey)
6024{
6025 void *hdr;
6026 struct nlattr *infoattr;
6027
15e47304 6028 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6029 NL80211_CMD_NEW_SURVEY_RESULTS);
6030 if (!hdr)
6031 return -ENOMEM;
6032
9360ffd1
DM		 6033 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6034 goto nla_put_failure;
61fa713c
HS		 6035
6036 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6037 if (!infoattr)
6038 goto nla_put_failure;
6039
9360ffd1
DM		 6040 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6041 survey->channel->center_freq))
6042 goto nla_put_failure;
6043
6044 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6045 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6046 goto nla_put_failure;
6047 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6048 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6049 goto nla_put_failure;
6050 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6051 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6052 survey->channel_time))
6053 goto nla_put_failure;
6054 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6055 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6056 survey->channel_time_busy))
6057 goto nla_put_failure;
6058 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6059 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6060 survey->channel_time_ext_busy))
6061 goto nla_put_failure;
6062 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6063 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6064 survey->channel_time_rx))
6065 goto nla_put_failure;
6066 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6067 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6068 survey->channel_time_tx))
6069 goto nla_put_failure;
61fa713c
HS		 6070
6071 nla_nest_end(msg, infoattr);
6072
6073 return genlmsg_end(msg, hdr);
6074
6075 nla_put_failure:
6076 genlmsg_cancel(msg, hdr);
6077 return -EMSGSIZE;
6078}
6079
6080static int nl80211_dump_survey(struct sk_buff *skb,
6081 struct netlink_callback *cb)
6082{
6083 struct survey_info survey;
6084 struct cfg80211_registered_device *dev;
97990a06
JB		 6085 struct wireless_dev *wdev;
6086 int survey_idx = cb->args[2];
61fa713c
HS		 6087 int res;
6088
97990a06 6089 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 6090 if (res)
6091 return res;
61fa713c 6092
97990a06
JB		 6093 if (!wdev->netdev) {
6094 res = -EINVAL;
6095 goto out_err;
6096 }
6097
61fa713c
HS		 6098 if (!dev->ops->dump_survey) {
6099 res = -EOPNOTSUPP;
6100 goto out_err;
6101 }
6102
6103 while (1) {
180cdc79
LR		 6104 struct ieee80211_channel *chan;
6105
97990a06 6106 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6107 if (res == -ENOENT)
6108 break;
6109 if (res)
6110 goto out_err;
6111
180cdc79
LR		 6112 /* Survey without a channel doesn't make sense */
6113 if (!survey.channel) {
6114 res = -EINVAL;
6115 goto out;
6116 }
6117
6118 chan = ieee80211_get_channel(&dev->wiphy,
6119 survey.channel->center_freq);
6120 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6121 survey_idx++;
6122 continue;
6123 }
6124
61fa713c 6125 if (nl80211_send_survey(skb,
15e47304 6126 NETLINK_CB(cb->skb).portid,
61fa713c 6127 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6128 wdev->netdev, &survey) < 0)
61fa713c
HS		 6129 goto out;
6130 survey_idx++;
6131 }
6132
6133 out:
97990a06 6134 cb->args[2] = survey_idx;
61fa713c
HS		 6135 res = skb->len;
6136 out_err:
97990a06 6137 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 6138 return res;
6139}
6140
b23aa676
SO		 6141static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6142{
6143 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6144 NL80211_WPA_VERSION_2));
6145}
6146
636a5d36
JM		 6147static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6148{
4c476991
JB		 6149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6150 struct net_device *dev = info->user_ptr[1];
19957bb3 6151 struct ieee80211_channel *chan;
e39e5b5e
JM		 6152 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6153 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6154 enum nl80211_auth_type auth_type;
fffd0934 6155 struct key_parse key;
d5cdfacb 6156 bool local_state_change;
636a5d36 6157
f4a11bb0
JB		 6158 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6159 return -EINVAL;
6160
6161 if (!info->attrs[NL80211_ATTR_MAC])
6162 return -EINVAL;
6163
1778092e
JM		 6164 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6165 return -EINVAL;
6166
19957bb3
JB		 6167 if (!info->attrs[NL80211_ATTR_SSID])
6168 return -EINVAL;
6169
6170 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6171 return -EINVAL;
6172
fffd0934
JB		 6173 err = nl80211_parse_key(info, &key);
6174 if (err)
6175 return err;
6176
6177 if (key.idx >= 0) {
e31b8213
JB		 6178 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6179 return -EINVAL;
fffd0934
JB		 6180 if (!key.p.key || !key.p.key_len)
6181 return -EINVAL;
6182 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6183 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6184 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6185 key.p.key_len != WLAN_KEY_LEN_WEP104))
6186 return -EINVAL;
6187 if (key.idx > 4)
6188 return -EINVAL;
6189 } else {
6190 key.p.key_len = 0;
6191 key.p.key = NULL;
6192 }
6193
afea0b7a
JB		 6194 if (key.idx >= 0) {
6195 int i;
6196 bool ok = false;
6197 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6198 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6199 ok = true;
6200 break;
6201 }
6202 }
4c476991
JB		 6203 if (!ok)
6204 return -EINVAL;
afea0b7a
JB		 6205 }
6206
4c476991
JB		 6207 if (!rdev->ops->auth)
6208 return -EOPNOTSUPP;
636a5d36 6209
074ac8df 6210 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6211 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6212 return -EOPNOTSUPP;
eec60b03 6213
19957bb3 6214 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6215 chan = nl80211_get_valid_chan(&rdev->wiphy,
6216 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6217 if (!chan)
4c476991 6218 return -EINVAL;
636a5d36 6219
19957bb3
JB		 6220 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6221 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6222
6223 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6224 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6225 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6226 }
6227
19957bb3 6228 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6229 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6230 return -EINVAL;
636a5d36 6231
e39e5b5e
JM		 6232 if (auth_type == NL80211_AUTHTYPE_SAE &&
6233 !info->attrs[NL80211_ATTR_SAE_DATA])
6234 return -EINVAL;
6235
6236 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6237 if (auth_type != NL80211_AUTHTYPE_SAE)
6238 return -EINVAL;
6239 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6240 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6241 /* need to include at least Auth Transaction and Status Code */
6242 if (sae_data_len < 4)
6243 return -EINVAL;
6244 }
6245
d5cdfacb
JM		 6246 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6247
95de817b
JB		 6248 /*
6249 * Since we no longer track auth state, ignore
6250 * requests to only change local state.
6251 */
6252 if (local_state_change)
6253 return 0;
6254
91bf9b26
JB		 6255 wdev_lock(dev->ieee80211_ptr);
6256 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6257 ssid, ssid_len, ie, ie_len,
6258 key.p.key, key.p.key_len, key.idx,
6259 sae_data, sae_data_len);
6260 wdev_unlock(dev->ieee80211_ptr);
6261 return err;
636a5d36
JM		 6262}
6263
c0692b8f
JB		 6264static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6265 struct genl_info *info,
3dc27d25
JB		 6266 struct cfg80211_crypto_settings *settings,
6267 int cipher_limit)
b23aa676 6268{
c0b2bbd8
JB		 6269 memset(settings, 0, sizeof(*settings));
6270
b23aa676
SO		 6271 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6272
c0692b8f
JB		 6273 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6274 u16 proto;
6275 proto = nla_get_u16(
6276 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6277 settings->control_port_ethertype = cpu_to_be16(proto);
6278 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6279 proto != ETH_P_PAE)
6280 return -EINVAL;
6281 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6282 settings->control_port_no_encrypt = true;
6283 } else
6284 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6285
b23aa676
SO		 6286 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6287 void *data;
6288 int len, i;
6289
6290 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6291 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6292 settings->n_ciphers_pairwise = len / sizeof(u32);
6293
6294 if (len % sizeof(u32))
6295 return -EINVAL;
6296
3dc27d25 6297 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6298 return -EINVAL;
6299
6300 memcpy(settings->ciphers_pairwise, data, len);
6301
6302 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6303 if (!cfg80211_supported_cipher_suite(
6304 &rdev->wiphy,
b23aa676
SO		 6305 settings->ciphers_pairwise[i]))
6306 return -EINVAL;
6307 }
6308
6309 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6310 settings->cipher_group =
6311 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6312 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6313 settings->cipher_group))
b23aa676
SO		 6314 return -EINVAL;
6315 }
6316
6317 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6318 settings->wpa_versions =
6319 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6320 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6321 return -EINVAL;
6322 }
6323
6324 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6325 void *data;
6d30240e 6326 int len;
b23aa676
SO		 6327
6328 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6329 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6330 settings->n_akm_suites = len / sizeof(u32);
6331
6332 if (len % sizeof(u32))
6333 return -EINVAL;
6334
1b9ca027
JM		 6335 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6336 return -EINVAL;
6337
b23aa676 6338 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6339 }
6340
6341 return 0;
6342}
6343
636a5d36
JM		 6344static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6345{
4c476991
JB		 6346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6347 struct net_device *dev = info->user_ptr[1];
f444de05 6348 struct ieee80211_channel *chan;
f62fab73
JB		 6349 struct cfg80211_assoc_request req = {};
6350 const u8 *bssid, *ssid;
6351 int err, ssid_len = 0;
636a5d36 6352
f4a11bb0
JB		 6353 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6354 return -EINVAL;
6355
6356 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6357 !info->attrs[NL80211_ATTR_SSID] ||
6358 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6359 return -EINVAL;
6360
4c476991
JB		 6361 if (!rdev->ops->assoc)
6362 return -EOPNOTSUPP;
636a5d36 6363
074ac8df 6364 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6365 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6366 return -EOPNOTSUPP;
eec60b03 6367
19957bb3 6368 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6369
664834de
JM		 6370 chan = nl80211_get_valid_chan(&rdev->wiphy,
6371 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6372 if (!chan)
4c476991 6373 return -EINVAL;
636a5d36 6374
19957bb3
JB		 6375 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6376 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6377
6378 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6379 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6380 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6381 }
6382
dc6382ce 6383 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6384 enum nl80211_mfp mfp =
dc6382ce 6385 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6386 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6387 req.use_mfp = true;
4c476991
JB		 6388 else if (mfp != NL80211_MFP_NO)
6389 return -EINVAL;
dc6382ce
JM		 6390 }
6391
3e5d7649 6392 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6393 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6394
7e7c8926 6395 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6396 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6397
6398 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6399 memcpy(&req.ht_capa_mask,
6400 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6401 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6402
6403 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6404 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6405 return -EINVAL;
f62fab73
JB		 6406 memcpy(&req.ht_capa,
6407 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6408 sizeof(req.ht_capa));
7e7c8926
BG		 6409 }
6410
ee2aca34 6411 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6412 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6413
6414 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6415 memcpy(&req.vht_capa_mask,
6416 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6417 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6418
6419 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6420 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6421 return -EINVAL;
f62fab73
JB		 6422 memcpy(&req.vht_capa,
6423 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6424 sizeof(req.vht_capa));
ee2aca34
JB		 6425 }
6426
f62fab73 6427 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6428 if (!err) {
6429 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6430 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6431 ssid, ssid_len, &req);
91bf9b26
JB		 6432 wdev_unlock(dev->ieee80211_ptr);
6433 }
636a5d36 6434
636a5d36
JM		 6435 return err;
6436}
6437
6438static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6439{
4c476991
JB		 6440 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6441 struct net_device *dev = info->user_ptr[1];
19957bb3 6442 const u8 *ie = NULL, *bssid;
91bf9b26 6443 int ie_len = 0, err;
19957bb3 6444 u16 reason_code;
d5cdfacb 6445 bool local_state_change;
636a5d36 6446
f4a11bb0
JB		 6447 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6448 return -EINVAL;
6449
6450 if (!info->attrs[NL80211_ATTR_MAC])
6451 return -EINVAL;
6452
6453 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6454 return -EINVAL;
6455
4c476991
JB		 6456 if (!rdev->ops->deauth)
6457 return -EOPNOTSUPP;
636a5d36 6458
074ac8df 6459 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6460 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6461 return -EOPNOTSUPP;
eec60b03 6462
19957bb3 6463 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6464
19957bb3
JB		 6465 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6466 if (reason_code == 0) {
f4a11bb0 6467 /* Reason Code 0 is reserved */
4c476991 6468 return -EINVAL;
255e737e 6469 }
636a5d36
JM		 6470
6471 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6472 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6473 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6474 }
6475
d5cdfacb
JM		 6476 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6477
91bf9b26
JB		 6478 wdev_lock(dev->ieee80211_ptr);
6479 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6480 local_state_change);
6481 wdev_unlock(dev->ieee80211_ptr);
6482 return err;
636a5d36
JM		 6483}
6484
6485static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6486{
4c476991
JB		 6487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6488 struct net_device *dev = info->user_ptr[1];
19957bb3 6489 const u8 *ie = NULL, *bssid;
91bf9b26 6490 int ie_len = 0, err;
19957bb3 6491 u16 reason_code;
d5cdfacb 6492 bool local_state_change;
636a5d36 6493
f4a11bb0
JB		 6494 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6495 return -EINVAL;
6496
6497 if (!info->attrs[NL80211_ATTR_MAC])
6498 return -EINVAL;
6499
6500 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6501 return -EINVAL;
6502
4c476991
JB		 6503 if (!rdev->ops->disassoc)
6504 return -EOPNOTSUPP;
636a5d36 6505
074ac8df 6506 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6507 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6508 return -EOPNOTSUPP;
eec60b03 6509
19957bb3 6510 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6511
19957bb3
JB		 6512 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6513 if (reason_code == 0) {
f4a11bb0 6514 /* Reason Code 0 is reserved */
4c476991 6515 return -EINVAL;
255e737e 6516 }
636a5d36
JM		 6517
6518 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6519 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6520 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6521 }
6522
d5cdfacb
JM		 6523 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6524
91bf9b26
JB		 6525 wdev_lock(dev->ieee80211_ptr);
6526 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6527 local_state_change);
6528 wdev_unlock(dev->ieee80211_ptr);
6529 return err;
636a5d36
JM		 6530}
6531
dd5b4cc7
FF		 6532static bool
6533nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6534 int mcast_rate[IEEE80211_NUM_BANDS],
6535 int rateval)
6536{
6537 struct wiphy *wiphy = &rdev->wiphy;
6538 bool found = false;
6539 int band, i;
6540
6541 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6542 struct ieee80211_supported_band *sband;
6543
6544 sband = wiphy->bands[band];
6545 if (!sband)
6546 continue;
6547
6548 for (i = 0; i < sband->n_bitrates; i++) {
6549 if (sband->bitrates[i].bitrate == rateval) {
6550 mcast_rate[band] = i + 1;
6551 found = true;
6552 break;
6553 }
6554 }
6555 }
6556
6557 return found;
6558}
6559
04a773ad
JB		 6560static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6561{
4c476991
JB		 6562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6563 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6564 struct cfg80211_ibss_params ibss;
6565 struct wiphy *wiphy;
fffd0934 6566 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6567 int err;
6568
8e30bc55
JB		 6569 memset(&ibss, 0, sizeof(ibss));
6570
04a773ad
JB		 6571 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6572 return -EINVAL;
6573
683b6d3b 6574 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6575 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6576 return -EINVAL;
6577
8e30bc55
JB		 6578 ibss.beacon_interval = 100;
6579
6580 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6581 ibss.beacon_interval =
6582 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6583 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6584 return -EINVAL;
6585 }
6586
4c476991
JB		 6587 if (!rdev->ops->join_ibss)
6588 return -EOPNOTSUPP;
04a773ad 6589
4c476991
JB		 6590 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6591 return -EOPNOTSUPP;
04a773ad 6592
79c97e97 6593 wiphy = &rdev->wiphy;
04a773ad 6594
39193498 6595 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6596 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6597
6598 if (!is_valid_ether_addr(ibss.bssid))
6599 return -EINVAL;
6600 }
04a773ad
JB		 6601 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6602 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6603
6604 if (info->attrs[NL80211_ATTR_IE]) {
6605 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6606 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6607 }
6608
683b6d3b
JB		 6609 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6610 if (err)
6611 return err;
04a773ad 6612
683b6d3b 6613 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6614 return -EINVAL;
6615
2f301ab2 6616 switch (ibss.chandef.width) {
bf372645
SW		 6617 case NL80211_CHAN_WIDTH_5:
6618 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6619 case NL80211_CHAN_WIDTH_20_NOHT:
6620 break;
6621 case NL80211_CHAN_WIDTH_20:
6622 case NL80211_CHAN_WIDTH_40:
6623 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6624 break;
6625 default:
c04d6150 6626 return -EINVAL;
2f301ab2 6627 }
db9c64cf 6628
04a773ad 6629 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6630 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6631
fbd2c8dc
TP		 6632 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6633 u8 *rates =
6634 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6635 int n_rates =
6636 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6637 struct ieee80211_supported_band *sband =
683b6d3b 6638 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6639
34850ab2
JB		 6640 err = ieee80211_get_ratemask(sband, rates, n_rates,
6641 &ibss.basic_rates);
6642 if (err)
6643 return err;
fbd2c8dc 6644 }
dd5b4cc7 6645
803768f5
SW		 6646 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6647 memcpy(&ibss.ht_capa_mask,
6648 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6649 sizeof(ibss.ht_capa_mask));
6650
6651 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6652 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6653 return -EINVAL;
6654 memcpy(&ibss.ht_capa,
6655 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6656 sizeof(ibss.ht_capa));
6657 }
6658
dd5b4cc7
FF		 6659 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6660 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6661 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6662 return -EINVAL;
fbd2c8dc 6663
4c476991 6664 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6665 bool no_ht = false;
6666
4c476991 6667 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6668 info->attrs[NL80211_ATTR_KEYS],
6669 &no_ht);
4c476991
JB		 6670 if (IS_ERR(connkeys))
6671 return PTR_ERR(connkeys);
de7044ee 6672
3d9d1d66
JB		 6673 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6674 no_ht) {
de7044ee
SM		 6675 kfree(connkeys);
6676 return -EINVAL;
6677 }
4c476991 6678 }
04a773ad 6679
267335d6
AQ		 6680 ibss.control_port =
6681 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6682
5336fa88
SW		 6683 ibss.userspace_handles_dfs =
6684 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6685
4c476991 6686 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6687 if (err)
6688 kfree(connkeys);
04a773ad
JB		 6689 return err;
6690}
6691
6692static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6693{
4c476991
JB		 6694 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6695 struct net_device *dev = info->user_ptr[1];
04a773ad 6696
4c476991
JB		 6697 if (!rdev->ops->leave_ibss)
6698 return -EOPNOTSUPP;
04a773ad 6699
4c476991
JB		 6700 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6701 return -EOPNOTSUPP;
04a773ad 6702
4c476991 6703 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6704}
6705
f4e583c8
AQ		 6706static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6707{
6708 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6709 struct net_device *dev = info->user_ptr[1];
6710 int mcast_rate[IEEE80211_NUM_BANDS];
6711 u32 nla_rate;
6712 int err;
6713
6714 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6715 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6716 return -EOPNOTSUPP;
6717
6718 if (!rdev->ops->set_mcast_rate)
6719 return -EOPNOTSUPP;
6720
6721 memset(mcast_rate, 0, sizeof(mcast_rate));
6722
6723 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6724 return -EINVAL;
6725
6726 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6727 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6728 return -EINVAL;
6729
6730 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6731
6732 return err;
6733}
6734
ad7e718c
JB		 6735static struct sk_buff *
6736__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6737 int approxlen, u32 portid, u32 seq,
6738 enum nl80211_commands cmd,
567ffc35
JB		 6739 enum nl80211_attrs attr,
6740 const struct nl80211_vendor_cmd_info *info,
6741 gfp_t gfp)
ad7e718c
JB		 6742{
6743 struct sk_buff *skb;
6744 void *hdr;
6745 struct nlattr *data;
6746
6747 skb = nlmsg_new(approxlen + 100, gfp);
6748 if (!skb)
6749 return NULL;
6750
6751 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6752 if (!hdr) {
6753 kfree_skb(skb);
6754 return NULL;
6755 }
6756
6757 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6758 goto nla_put_failure;
567ffc35
JB		 6759
6760 if (info) {
6761 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6762 info->vendor_id))
6763 goto nla_put_failure;
6764 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6765 info->subcmd))
6766 goto nla_put_failure;
6767 }
6768
ad7e718c
JB		 6769 data = nla_nest_start(skb, attr);
6770
6771 ((void **)skb->cb)[0] = rdev;
6772 ((void **)skb->cb)[1] = hdr;
6773 ((void **)skb->cb)[2] = data;
6774
6775 return skb;
6776
6777 nla_put_failure:
6778 kfree_skb(skb);
6779 return NULL;
6780}
f4e583c8 6781
e03ad6ea
JB		 6782struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6783 enum nl80211_commands cmd,
6784 enum nl80211_attrs attr,
6785 int vendor_event_idx,
6786 int approxlen, gfp_t gfp)
6787{
6788 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6789 const struct nl80211_vendor_cmd_info *info;
6790
6791 switch (cmd) {
6792 case NL80211_CMD_TESTMODE:
6793 if (WARN_ON(vendor_event_idx != -1))
6794 return NULL;
6795 info = NULL;
6796 break;
6797 case NL80211_CMD_VENDOR:
6798 if (WARN_ON(vendor_event_idx < 0 ||
6799 vendor_event_idx >= wiphy->n_vendor_events))
6800 return NULL;
6801 info = &wiphy->vendor_events[vendor_event_idx];
6802 break;
6803 default:
6804 WARN_ON(1);
6805 return NULL;
6806 }
6807
6808 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6809 cmd, attr, info, gfp);
6810}
6811EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6812
6813void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6814{
6815 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6816 void *hdr = ((void **)skb->cb)[1];
6817 struct nlattr *data = ((void **)skb->cb)[2];
6818 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6819
6820 nla_nest_end(skb, data);
6821 genlmsg_end(skb, hdr);
6822
6823 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6824 mcgrp = NL80211_MCGRP_VENDOR;
6825
6826 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6827 mcgrp, gfp);
6828}
6829EXPORT_SYMBOL(__cfg80211_send_event_skb);
6830
aff89a9b 6831#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6832static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6833{
4c476991 6834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6835 struct wireless_dev *wdev =
6836 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6837 int err;
6838
fc73f11f
DS		 6839 if (!rdev->ops->testmode_cmd)
6840 return -EOPNOTSUPP;
6841
6842 if (IS_ERR(wdev)) {
6843 err = PTR_ERR(wdev);
6844 if (err != -EINVAL)
6845 return err;
6846 wdev = NULL;
6847 } else if (wdev->wiphy != &rdev->wiphy) {
6848 return -EINVAL;
6849 }
6850
aff89a9b
JB		 6851 if (!info->attrs[NL80211_ATTR_TESTDATA])
6852 return -EINVAL;
6853
ad7e718c 6854 rdev->cur_cmd_info = info;
fc73f11f 6855 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 6856 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6857 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 6858 rdev->cur_cmd_info = NULL;
aff89a9b 6859
aff89a9b
JB		 6860 return err;
6861}
6862
71063f0e
WYG		 6863static int nl80211_testmode_dump(struct sk_buff *skb,
6864 struct netlink_callback *cb)
6865{
00918d33 6866 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6867 int err;
6868 long phy_idx;
6869 void *data = NULL;
6870 int data_len = 0;
6871
5fe231e8
JB		 6872 rtnl_lock();
6873
71063f0e
WYG		 6874 if (cb->args[0]) {
6875 /*
6876 * 0 is a valid index, but not valid for args[0],
6877 * so we need to offset by 1.
6878 */
6879 phy_idx = cb->args[0] - 1;
6880 } else {
6881 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6882 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6883 nl80211_policy);
6884 if (err)
5fe231e8 6885 goto out_err;
00918d33 6886
2bd7e35d
JB		 6887 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6888 nl80211_fam.attrbuf);
6889 if (IS_ERR(rdev)) {
5fe231e8
JB		 6890 err = PTR_ERR(rdev);
6891 goto out_err;
00918d33 6892 }
2bd7e35d
JB		 6893 phy_idx = rdev->wiphy_idx;
6894 rdev = NULL;
2bd7e35d 6895
71063f0e
WYG		 6896 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6897 cb->args[1] =
6898 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6899 }
6900
6901 if (cb->args[1]) {
6902 data = nla_data((void *)cb->args[1]);
6903 data_len = nla_len((void *)cb->args[1]);
6904 }
6905
00918d33
JB		 6906 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6907 if (!rdev) {
5fe231e8
JB		 6908 err = -ENOENT;
6909 goto out_err;
71063f0e 6910 }
71063f0e 6911
00918d33 6912 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6913 err = -EOPNOTSUPP;
6914 goto out_err;
6915 }
6916
6917 while (1) {
15e47304 6918 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6919 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6920 NL80211_CMD_TESTMODE);
6921 struct nlattr *tmdata;
6922
cb35fba3
DC		 6923 if (!hdr)
6924 break;
6925
9360ffd1 6926 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6927 genlmsg_cancel(skb, hdr);
6928 break;
6929 }
6930
6931 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6932 if (!tmdata) {
6933 genlmsg_cancel(skb, hdr);
6934 break;
6935 }
e35e4d28 6936 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6937 nla_nest_end(skb, tmdata);
6938
6939 if (err == -ENOBUFS || err == -ENOENT) {
6940 genlmsg_cancel(skb, hdr);
6941 break;
6942 } else if (err) {
6943 genlmsg_cancel(skb, hdr);
6944 goto out_err;
6945 }
6946
6947 genlmsg_end(skb, hdr);
6948 }
6949
6950 err = skb->len;
6951 /* see above */
6952 cb->args[0] = phy_idx + 1;
6953 out_err:
5fe231e8 6954 rtnl_unlock();
71063f0e
WYG		 6955 return err;
6956}
aff89a9b
JB		 6957#endif
6958
b23aa676
SO		 6959static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6960{
4c476991
JB		 6961 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6962 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6963 struct cfg80211_connect_params connect;
6964 struct wiphy *wiphy;
fffd0934 6965 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6966 int err;
6967
6968 memset(&connect, 0, sizeof(connect));
6969
6970 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6971 return -EINVAL;
6972
6973 if (!info->attrs[NL80211_ATTR_SSID] ||
6974 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6975 return -EINVAL;
6976
6977 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6978 connect.auth_type =
6979 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6980 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6981 NL80211_CMD_CONNECT))
b23aa676
SO		 6982 return -EINVAL;
6983 } else
6984 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6985
6986 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6987
c0692b8f 6988 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6989 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6990 if (err)
6991 return err;
b23aa676 6992
074ac8df 6993 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6994 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6995 return -EOPNOTSUPP;
b23aa676 6996
79c97e97 6997 wiphy = &rdev->wiphy;
b23aa676 6998
4486ea98
BS		 6999 connect.bg_scan_period = -1;
7000 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7001 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7002 connect.bg_scan_period =
7003 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7004 }
7005
b23aa676
SO		 7006 if (info->attrs[NL80211_ATTR_MAC])
7007 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7008 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7009 connect.bssid_hint =
7010 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7011 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7012 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7013
7014 if (info->attrs[NL80211_ATTR_IE]) {
7015 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7016 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7017 }
7018
cee00a95
JM		 7019 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7020 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7021 if (connect.mfp != NL80211_MFP_REQUIRED &&
7022 connect.mfp != NL80211_MFP_NO)
7023 return -EINVAL;
7024 } else {
7025 connect.mfp = NL80211_MFP_NO;
7026 }
7027
b23aa676 7028 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7029 connect.channel = nl80211_get_valid_chan(
7030 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7031 if (!connect.channel)
1df4a510
JM		 7032 return -EINVAL;
7033 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7034 connect.channel_hint = nl80211_get_valid_chan(
7035 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7036 if (!connect.channel_hint)
4c476991 7037 return -EINVAL;
b23aa676
SO		 7038 }
7039
fffd0934
JB		 7040 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7041 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7042 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7043 if (IS_ERR(connkeys))
7044 return PTR_ERR(connkeys);
fffd0934
JB		 7045 }
7046
7e7c8926
BG		 7047 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7048 connect.flags |= ASSOC_REQ_DISABLE_HT;
7049
7050 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7051 memcpy(&connect.ht_capa_mask,
7052 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7053 sizeof(connect.ht_capa_mask));
7054
7055 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7056 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7057 kfree(connkeys);
7e7c8926 7058 return -EINVAL;
b4e4f47e 7059 }
7e7c8926
BG		 7060 memcpy(&connect.ht_capa,
7061 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7062 sizeof(connect.ht_capa));
7063 }
7064
ee2aca34
JB		 7065 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7066 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7067
7068 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7069 memcpy(&connect.vht_capa_mask,
7070 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7071 sizeof(connect.vht_capa_mask));
7072
7073 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7074 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7075 kfree(connkeys);
7076 return -EINVAL;
7077 }
7078 memcpy(&connect.vht_capa,
7079 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7080 sizeof(connect.vht_capa));
7081 }
7082
83739b03
JB		 7083 wdev_lock(dev->ieee80211_ptr);
7084 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7085 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7086 if (err)
7087 kfree(connkeys);
b23aa676
SO		 7088 return err;
7089}
7090
7091static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7092{
4c476991
JB		 7093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7094 struct net_device *dev = info->user_ptr[1];
b23aa676 7095 u16 reason;
83739b03 7096 int ret;
b23aa676
SO		 7097
7098 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7099 reason = WLAN_REASON_DEAUTH_LEAVING;
7100 else
7101 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7102
7103 if (reason == 0)
7104 return -EINVAL;
7105
074ac8df 7106 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7107 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7108 return -EOPNOTSUPP;
b23aa676 7109
83739b03
JB		 7110 wdev_lock(dev->ieee80211_ptr);
7111 ret = cfg80211_disconnect(rdev, dev, reason, true);
7112 wdev_unlock(dev->ieee80211_ptr);
7113 return ret;
b23aa676
SO		 7114}
7115
463d0183
JB		 7116static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7117{
4c476991 7118 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7119 struct net *net;
7120 int err;
7121 u32 pid;
7122
7123 if (!info->attrs[NL80211_ATTR_PID])
7124 return -EINVAL;
7125
7126 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7127
463d0183 7128 net = get_net_ns_by_pid(pid);
4c476991
JB		 7129 if (IS_ERR(net))
7130 return PTR_ERR(net);
463d0183
JB		 7131
7132 err = 0;
7133
7134 /* check if anything to do */
4c476991
JB		 7135 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7136 err = cfg80211_switch_netns(rdev, net);
463d0183 7137
463d0183 7138 put_net(net);
463d0183
JB		 7139 return err;
7140}
7141
67fbb16b
SO		 7142static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7143{
4c476991 7144 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7145 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7146 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7147 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7148 struct cfg80211_pmksa pmksa;
7149
7150 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7151
7152 if (!info->attrs[NL80211_ATTR_MAC])
7153 return -EINVAL;
7154
7155 if (!info->attrs[NL80211_ATTR_PMKID])
7156 return -EINVAL;
7157
67fbb16b
SO		 7158 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7159 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7160
074ac8df 7161 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7162 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7163 return -EOPNOTSUPP;
67fbb16b
SO		 7164
7165 switch (info->genlhdr->cmd) {
7166 case NL80211_CMD_SET_PMKSA:
7167 rdev_ops = rdev->ops->set_pmksa;
7168 break;
7169 case NL80211_CMD_DEL_PMKSA:
7170 rdev_ops = rdev->ops->del_pmksa;
7171 break;
7172 default:
7173 WARN_ON(1);
7174 break;
7175 }
7176
4c476991
JB		 7177 if (!rdev_ops)
7178 return -EOPNOTSUPP;
67fbb16b 7179
4c476991 7180 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7181}
7182
7183static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7184{
4c476991
JB		 7185 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7186 struct net_device *dev = info->user_ptr[1];
67fbb16b 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;
67fbb16b 7191
4c476991
JB		 7192 if (!rdev->ops->flush_pmksa)
7193 return -EOPNOTSUPP;
67fbb16b 7194
e35e4d28 7195 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7196}
7197
109086ce
AN		 7198static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7199{
7200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7201 struct net_device *dev = info->user_ptr[1];
7202 u8 action_code, dialog_token;
7203 u16 status_code;
7204 u8 *peer;
7205
7206 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7207 !rdev->ops->tdls_mgmt)
7208 return -EOPNOTSUPP;
7209
7210 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7211 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7212 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7213 !info->attrs[NL80211_ATTR_IE] ||
7214 !info->attrs[NL80211_ATTR_MAC])
7215 return -EINVAL;
7216
7217 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7218 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7219 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7220 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7221
e35e4d28
HG		 7222 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7223 dialog_token, status_code,
7224 nla_data(info->attrs[NL80211_ATTR_IE]),
7225 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7226}
7227
7228static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7229{
7230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7231 struct net_device *dev = info->user_ptr[1];
7232 enum nl80211_tdls_operation operation;
7233 u8 *peer;
7234
7235 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7236 !rdev->ops->tdls_oper)
7237 return -EOPNOTSUPP;
7238
7239 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7240 !info->attrs[NL80211_ATTR_MAC])
7241 return -EINVAL;
7242
7243 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7244 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7245
e35e4d28 7246 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7247}
7248
9588bbd5
JM		 7249static int nl80211_remain_on_channel(struct sk_buff *skb,
7250 struct genl_info *info)
7251{
4c476991 7252 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7253 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7254 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7255 struct sk_buff *msg;
7256 void *hdr;
7257 u64 cookie;
683b6d3b 7258 u32 duration;
9588bbd5
JM		 7259 int err;
7260
7261 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7262 !info->attrs[NL80211_ATTR_DURATION])
7263 return -EINVAL;
7264
7265 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7266
ebf348fc
JB		 7267 if (!rdev->ops->remain_on_channel ||
7268 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7269 return -EOPNOTSUPP;
7270
9588bbd5 7271 /*
ebf348fc
JB		 7272 * We should be on that channel for at least a minimum amount of
7273 * time (10ms) but no longer than the driver supports.
9588bbd5 7274 */
ebf348fc 7275 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7276 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7277 return -EINVAL;
7278
683b6d3b
JB		 7279 err = nl80211_parse_chandef(rdev, info, &chandef);
7280 if (err)
7281 return err;
9588bbd5
JM		 7282
7283 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7284 if (!msg)
7285 return -ENOMEM;
9588bbd5 7286
15e47304 7287 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7288 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7289 if (!hdr) {
7290 err = -ENOBUFS;
9588bbd5
JM		 7291 goto free_msg;
7292 }
7293
683b6d3b
JB		 7294 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7295 duration, &cookie);
9588bbd5
JM		 7296
7297 if (err)
7298 goto free_msg;
7299
9360ffd1
DM		 7300 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7301 goto nla_put_failure;
9588bbd5
JM		 7302
7303 genlmsg_end(msg, hdr);
4c476991
JB		 7304
7305 return genlmsg_reply(msg, info);
9588bbd5
JM		 7306
7307 nla_put_failure:
7308 err = -ENOBUFS;
7309 free_msg:
7310 nlmsg_free(msg);
9588bbd5
JM		 7311 return err;
7312}
7313
7314static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7315 struct genl_info *info)
7316{
4c476991 7317 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7318 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7319 u64 cookie;
9588bbd5
JM		 7320
7321 if (!info->attrs[NL80211_ATTR_COOKIE])
7322 return -EINVAL;
7323
4c476991
JB		 7324 if (!rdev->ops->cancel_remain_on_channel)
7325 return -EOPNOTSUPP;
9588bbd5 7326
9588bbd5
JM		 7327 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7328
e35e4d28 7329 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7330}
7331
13ae75b1
JM		 7332static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7333 u8 *rates, u8 rates_len)
7334{
7335 u8 i;
7336 u32 mask = 0;
7337
7338 for (i = 0; i < rates_len; i++) {
7339 int rate = (rates[i] & 0x7f) * 5;
7340 int ridx;
7341 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7342 struct ieee80211_rate *srate =
7343 &sband->bitrates[ridx];
7344 if (rate == srate->bitrate) {
7345 mask |= 1 << ridx;
7346 break;
7347 }
7348 }
7349 if (ridx == sband->n_bitrates)
7350 return 0; /* rate not found */
7351 }
7352
7353 return mask;
7354}
7355
24db78c0
SW		 7356static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7357 u8 *rates, u8 rates_len,
7358 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7359{
7360 u8 i;
7361
7362 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7363
7364 for (i = 0; i < rates_len; i++) {
7365 int ridx, rbit;
7366
7367 ridx = rates[i] / 8;
7368 rbit = BIT(rates[i] % 8);
7369
7370 /* check validity */
910570b5 7371 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7372 return false;
7373
7374 /* check availability */
7375 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7376 mcs[ridx] |= rbit;
7377 else
7378 return false;
7379 }
7380
7381 return true;
7382}
7383
204e35a9
JD		 7384static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7385{
7386 u16 mcs_mask = 0;
7387
7388 switch (vht_mcs_map) {
7389 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7390 break;
7391 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7392 mcs_mask = 0x00FF;
7393 break;
7394 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7395 mcs_mask = 0x01FF;
7396 break;
7397 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7398 mcs_mask = 0x03FF;
7399 break;
7400 default:
7401 break;
7402 }
7403
7404 return mcs_mask;
7405}
7406
7407static void vht_build_mcs_mask(u16 vht_mcs_map,
7408 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7409{
7410 u8 nss;
7411
7412 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7413 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7414 vht_mcs_map >>= 2;
7415 }
7416}
7417
7418static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7419 struct nl80211_txrate_vht *txrate,
7420 u16 mcs[NL80211_VHT_NSS_MAX])
7421{
7422 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7423 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7424 u8 i;
7425
7426 if (!sband->vht_cap.vht_supported)
7427 return false;
7428
7429 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7430
7431 /* Build vht_mcs_mask from VHT capabilities */
7432 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7433
7434 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7435 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7436 mcs[i] = txrate->mcs[i];
7437 else
7438 return false;
7439 }
7440
7441 return true;
7442}
7443
b54452b0 7444static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7445 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7446 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7447 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7448 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7449 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7450 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7451};
7452
7453static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7454 struct genl_info *info)
7455{
7456 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7458 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7459 int rem, i;
7460 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7461 struct nlattr *tx_rates;
7462 struct ieee80211_supported_band *sband;
204e35a9 7463 u16 vht_tx_mcs_map;
13ae75b1 7464
4c476991
JB		 7465 if (!rdev->ops->set_bitrate_mask)
7466 return -EOPNOTSUPP;
13ae75b1
JM		 7467
7468 memset(&mask, 0, sizeof(mask));
7469 /* Default to all rates enabled */
7470 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7471 sband = rdev->wiphy.bands[i];
7869303b
JD		 7472
7473 if (!sband)
7474 continue;
7475
7476 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7477 memcpy(mask.control[i].ht_mcs,
7869303b 7478 sband->ht_cap.mcs.rx_mask,
d1e33e65 7479 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7480
7481 if (!sband->vht_cap.vht_supported)
7482 continue;
7483
7484 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7485 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7486 }
7487
b9243ab0
JD		 7488 /* if no rates are given set it back to the defaults */
7489 if (!info->attrs[NL80211_ATTR_TX_RATES])
7490 goto out;
7491
13ae75b1
JM		 7492 /*
7493 * The nested attribute uses enum nl80211_band as the index. This maps
7494 * directly to the enum ieee80211_band values used in cfg80211.
7495 */
24db78c0 7496 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7497 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7498 {
7499 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7500 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7501 return -EINVAL;
13ae75b1 7502 sband = rdev->wiphy.bands[band];
4c476991
JB		 7503 if (sband == NULL)
7504 return -EINVAL;
13ae75b1
JM		 7505 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7506 nla_len(tx_rates), nl80211_txattr_policy);
7507 if (tb[NL80211_TXRATE_LEGACY]) {
7508 mask.control[band].legacy = rateset_to_mask(
7509 sband,
7510 nla_data(tb[NL80211_TXRATE_LEGACY]),
7511 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7512 if ((mask.control[band].legacy == 0) &&
7513 nla_len(tb[NL80211_TXRATE_LEGACY]))
7514 return -EINVAL;
24db78c0 7515 }
d1e33e65 7516 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7517 if (!ht_rateset_to_mask(
7518 sband,
d1e33e65
JD		 7519 nla_data(tb[NL80211_TXRATE_HT]),
7520 nla_len(tb[NL80211_TXRATE_HT]),
7521 mask.control[band].ht_mcs))
24db78c0
SW		 7522 return -EINVAL;
7523 }
204e35a9
JD		 7524 if (tb[NL80211_TXRATE_VHT]) {
7525 if (!vht_set_mcs_mask(
7526 sband,
7527 nla_data(tb[NL80211_TXRATE_VHT]),
7528 mask.control[band].vht_mcs))
7529 return -EINVAL;
7530 }
0b9323f6
JD		 7531 if (tb[NL80211_TXRATE_GI]) {
7532 mask.control[band].gi =
7533 nla_get_u8(tb[NL80211_TXRATE_GI]);
7534 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7535 return -EINVAL;
7536 }
24db78c0
SW		 7537
7538 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7539 /* don't allow empty legacy rates if HT or VHT
7540 * are not even supported.
7541 */
7542 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7543 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7544 return -EINVAL;
7545
7546 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7547 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7548 goto out;
7549
7550 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7551 if (mask.control[band].vht_mcs[i])
7552 goto out;
24db78c0
SW		 7553
7554 /* legacy and mcs rates may not be both empty */
204e35a9 7555 return -EINVAL;
13ae75b1
JM		 7556 }
7557 }
7558
b9243ab0 7559out:
e35e4d28 7560 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7561}
7562
2e161f78 7563static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7564{
4c476991 7565 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7566 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7567 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7568
7569 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7570 return -EINVAL;
7571
2e161f78
JB		 7572 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7573 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7574
71bbc994
JB		 7575 switch (wdev->iftype) {
7576 case NL80211_IFTYPE_STATION:
7577 case NL80211_IFTYPE_ADHOC:
7578 case NL80211_IFTYPE_P2P_CLIENT:
7579 case NL80211_IFTYPE_AP:
7580 case NL80211_IFTYPE_AP_VLAN:
7581 case NL80211_IFTYPE_MESH_POINT:
7582 case NL80211_IFTYPE_P2P_GO:
98104fde 7583 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7584 break;
7585 default:
4c476991 7586 return -EOPNOTSUPP;
71bbc994 7587 }
026331c4
JM		 7588
7589 /* not much point in registering if we can't reply */
4c476991
JB		 7590 if (!rdev->ops->mgmt_tx)
7591 return -EOPNOTSUPP;
026331c4 7592
15e47304 7593 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7594 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7595 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7596}
7597
2e161f78 7598static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7599{
4c476991 7600 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7601 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7602 struct cfg80211_chan_def chandef;
026331c4 7603 int err;
d64d373f 7604 void *hdr = NULL;
026331c4 7605 u64 cookie;
e247bd90 7606 struct sk_buff *msg = NULL;
b176e629
AO		 7607 struct cfg80211_mgmt_tx_params params = {
7608 .dont_wait_for_ack =
7609 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7610 };
026331c4 7611
683b6d3b 7612 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7613 return -EINVAL;
7614
4c476991
JB		 7615 if (!rdev->ops->mgmt_tx)
7616 return -EOPNOTSUPP;
026331c4 7617
71bbc994 7618 switch (wdev->iftype) {
ea141b75
AQ		 7619 case NL80211_IFTYPE_P2P_DEVICE:
7620 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7621 return -EINVAL;
71bbc994
JB		 7622 case NL80211_IFTYPE_STATION:
7623 case NL80211_IFTYPE_ADHOC:
7624 case NL80211_IFTYPE_P2P_CLIENT:
7625 case NL80211_IFTYPE_AP:
7626 case NL80211_IFTYPE_AP_VLAN:
7627 case NL80211_IFTYPE_MESH_POINT:
7628 case NL80211_IFTYPE_P2P_GO:
7629 break;
7630 default:
4c476991 7631 return -EOPNOTSUPP;
71bbc994 7632 }
026331c4 7633
f7ca38df 7634 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7635 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7636 return -EINVAL;
b176e629 7637 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7638
7639 /*
7640 * We should wait on the channel for at least a minimum amount
7641 * of time (10ms) but no longer than the driver supports.
7642 */
b176e629
AO		 7643 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7644 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7645 return -EINVAL;
7646
f7ca38df
JB		 7647 }
7648
b176e629 7649 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7650
b176e629 7651 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7652 return -EINVAL;
7653
b176e629 7654 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7655
ea141b75
AQ		 7656 /* get the channel if any has been specified, otherwise pass NULL to
7657 * the driver. The latter will use the current one
7658 */
7659 chandef.chan = NULL;
7660 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7661 err = nl80211_parse_chandef(rdev, info, &chandef);
7662 if (err)
7663 return err;
7664 }
7665
b176e629 7666 if (!chandef.chan && params.offchan)
ea141b75 7667 return -EINVAL;
026331c4 7668
b176e629 7669 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7670 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7671 if (!msg)
7672 return -ENOMEM;
026331c4 7673
15e47304 7674 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7675 NL80211_CMD_FRAME);
cb35fba3
DC		 7676 if (!hdr) {
7677 err = -ENOBUFS;
e247bd90
JB		 7678 goto free_msg;
7679 }
026331c4 7680 }
e247bd90 7681
b176e629
AO		 7682 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7683 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7684 params.chan = chandef.chan;
7685 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7686 if (err)
7687 goto free_msg;
7688
e247bd90 7689 if (msg) {
9360ffd1
DM		 7690 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7691 goto nla_put_failure;
026331c4 7692
e247bd90
JB		 7693 genlmsg_end(msg, hdr);
7694 return genlmsg_reply(msg, info);
7695 }
7696
7697 return 0;
026331c4
JM		 7698
7699 nla_put_failure:
7700 err = -ENOBUFS;
7701 free_msg:
7702 nlmsg_free(msg);
026331c4
JM		 7703 return err;
7704}
7705
f7ca38df
JB		 7706static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7707{
7708 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7709 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7710 u64 cookie;
7711
7712 if (!info->attrs[NL80211_ATTR_COOKIE])
7713 return -EINVAL;
7714
7715 if (!rdev->ops->mgmt_tx_cancel_wait)
7716 return -EOPNOTSUPP;
7717
71bbc994
JB		 7718 switch (wdev->iftype) {
7719 case NL80211_IFTYPE_STATION:
7720 case NL80211_IFTYPE_ADHOC:
7721 case NL80211_IFTYPE_P2P_CLIENT:
7722 case NL80211_IFTYPE_AP:
7723 case NL80211_IFTYPE_AP_VLAN:
7724 case NL80211_IFTYPE_P2P_GO:
98104fde 7725 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7726 break;
7727 default:
f7ca38df 7728 return -EOPNOTSUPP;
71bbc994 7729 }
f7ca38df
JB		 7730
7731 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7732
e35e4d28 7733 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7734}
7735
ffb9eb3d
KV		 7736static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7737{
4c476991 7738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7739 struct wireless_dev *wdev;
4c476991 7740 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7741 u8 ps_state;
7742 bool state;
7743 int err;
7744
4c476991
JB		 7745 if (!info->attrs[NL80211_ATTR_PS_STATE])
7746 return -EINVAL;
ffb9eb3d
KV		 7747
7748 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7749
4c476991
JB		 7750 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7751 return -EINVAL;
ffb9eb3d
KV		 7752
7753 wdev = dev->ieee80211_ptr;
7754
4c476991
JB		 7755 if (!rdev->ops->set_power_mgmt)
7756 return -EOPNOTSUPP;
ffb9eb3d
KV		 7757
7758 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7759
7760 if (state == wdev->ps)
4c476991 7761 return 0;
ffb9eb3d 7762
e35e4d28 7763 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7764 if (!err)
7765 wdev->ps = state;
ffb9eb3d
KV		 7766 return err;
7767}
7768
7769static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7770{
4c476991 7771 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7772 enum nl80211_ps_state ps_state;
7773 struct wireless_dev *wdev;
4c476991 7774 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7775 struct sk_buff *msg;
7776 void *hdr;
7777 int err;
7778
ffb9eb3d
KV		 7779 wdev = dev->ieee80211_ptr;
7780
4c476991
JB		 7781 if (!rdev->ops->set_power_mgmt)
7782 return -EOPNOTSUPP;
ffb9eb3d
KV		 7783
7784 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7785 if (!msg)
7786 return -ENOMEM;
ffb9eb3d 7787
15e47304 7788 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7789 NL80211_CMD_GET_POWER_SAVE);
7790 if (!hdr) {
4c476991 7791 err = -ENOBUFS;
ffb9eb3d
KV		 7792 goto free_msg;
7793 }
7794
7795 if (wdev->ps)
7796 ps_state = NL80211_PS_ENABLED;
7797 else
7798 ps_state = NL80211_PS_DISABLED;
7799
9360ffd1
DM		 7800 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7801 goto nla_put_failure;
ffb9eb3d
KV		 7802
7803 genlmsg_end(msg, hdr);
4c476991 7804 return genlmsg_reply(msg, info);
ffb9eb3d 7805
4c476991 7806 nla_put_failure:
ffb9eb3d 7807 err = -ENOBUFS;
4c476991 7808 free_msg:
ffb9eb3d 7809 nlmsg_free(msg);
ffb9eb3d
KV		 7810 return err;
7811}
7812
d6dc1a38
JO		 7813static struct nla_policy
7814nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7815 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7816 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7817 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7818 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7819 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7820 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7821};
7822
84f10708 7823static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7824 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7825{
7826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 7827 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7828 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 7829
d9d8b019 7830 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7831 return -EINVAL;
7832
84f10708
TP		 7833 if (!rdev->ops->set_cqm_txe_config)
7834 return -EOPNOTSUPP;
7835
7836 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7837 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7838 return -EOPNOTSUPP;
7839
e35e4d28 7840 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7841}
7842
d6dc1a38
JO		 7843static int nl80211_set_cqm_rssi(struct genl_info *info,
7844 s32 threshold, u32 hysteresis)
7845{
4c476991 7846 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 7847 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7848 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 7849
7850 if (threshold > 0)
7851 return -EINVAL;
7852
1da5fcc8
JB		 7853 /* disabling - hysteresis should also be zero then */
7854 if (threshold == 0)
7855 hysteresis = 0;
d6dc1a38 7856
4c476991
JB		 7857 if (!rdev->ops->set_cqm_rssi_config)
7858 return -EOPNOTSUPP;
d6dc1a38 7859
074ac8df 7860 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7861 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7862 return -EOPNOTSUPP;
d6dc1a38 7863
e35e4d28 7864 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7865}
7866
7867static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7868{
7869 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7870 struct nlattr *cqm;
7871 int err;
7872
7873 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 7874 if (!cqm)
7875 return -EINVAL;
d6dc1a38
JO		 7876
7877 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7878 nl80211_attr_cqm_policy);
7879 if (err)
1da5fcc8 7880 return err;
d6dc1a38
JO		 7881
7882 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7883 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 7884 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7885 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 7886
1da5fcc8
JB		 7887 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
7888 }
7889
7890 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7891 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7892 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7893 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7894 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7895 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7896
7897 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
7898 }
7899
7900 return -EINVAL;
d6dc1a38
JO		 7901}
7902
29cbe68c
JB		 7903static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7904{
7905 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7906 struct net_device *dev = info->user_ptr[1];
7907 struct mesh_config cfg;
c80d545d 7908 struct mesh_setup setup;
29cbe68c
JB		 7909 int err;
7910
7911 /* start with default */
7912 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7913 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7914
24bdd9f4 7915 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7916 /* and parse parameters if given */
24bdd9f4 7917 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7918 if (err)
7919 return err;
7920 }
7921
7922 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7923 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7924 return -EINVAL;
7925
c80d545d
JC		 7926 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7927 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7928
4bb62344
CYY		 7929 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7930 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7931 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7932 return -EINVAL;
7933
9bdbf04d
MP		 7934 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7935 setup.beacon_interval =
7936 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7937 if (setup.beacon_interval < 10 ||
7938 setup.beacon_interval > 10000)
7939 return -EINVAL;
7940 }
7941
7942 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7943 setup.dtim_period =
7944 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7945 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7946 return -EINVAL;
7947 }
7948
c80d545d
JC		 7949 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7950 /* parse additional setup parameters if given */
7951 err = nl80211_parse_mesh_setup(info, &setup);
7952 if (err)
7953 return err;
7954 }
7955
d37bb18a
TP		 7956 if (setup.user_mpm)
7957 cfg.auto_open_plinks = false;
7958
cc1d2806 7959 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7960 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7961 if (err)
7962 return err;
cc1d2806
JB		 7963 } else {
7964 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7965 setup.chandef.chan = NULL;
cc1d2806
JB		 7966 }
7967
ffb3cf30
AN		 7968 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7969 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7970 int n_rates =
7971 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7972 struct ieee80211_supported_band *sband;
7973
7974 if (!setup.chandef.chan)
7975 return -EINVAL;
7976
7977 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7978
7979 err = ieee80211_get_ratemask(sband, rates, n_rates,
7980 &setup.basic_rates);
7981 if (err)
7982 return err;
7983 }
7984
c80d545d 7985 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7986}
7987
7988static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7989{
7990 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7991 struct net_device *dev = info->user_ptr[1];
7992
7993 return cfg80211_leave_mesh(rdev, dev);
7994}
7995
dfb89c56 7996#ifdef CONFIG_PM
bb92d199
AK		 7997static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7998 struct cfg80211_registered_device *rdev)
7999{
6abb9cb9 8000 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8001 struct nlattr *nl_pats, *nl_pat;
8002 int i, pat_len;
8003
6abb9cb9 8004 if (!wowlan->n_patterns)
bb92d199
AK		 8005 return 0;
8006
8007 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8008 if (!nl_pats)
8009 return -ENOBUFS;
8010
6abb9cb9 8011 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8012 nl_pat = nla_nest_start(msg, i + 1);
8013 if (!nl_pat)
8014 return -ENOBUFS;
6abb9cb9 8015 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8016 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8017 wowlan->patterns[i].mask) ||
50ac6607
AK		 8018 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8019 wowlan->patterns[i].pattern) ||
8020 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8021 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8022 return -ENOBUFS;
8023 nla_nest_end(msg, nl_pat);
8024 }
8025 nla_nest_end(msg, nl_pats);
8026
8027 return 0;
8028}
8029
2a0e047e
JB		 8030static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8031 struct cfg80211_wowlan_tcp *tcp)
8032{
8033 struct nlattr *nl_tcp;
8034
8035 if (!tcp)
8036 return 0;
8037
8038 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8039 if (!nl_tcp)
8040 return -ENOBUFS;
8041
8042 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8043 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8044 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8045 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8046 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8047 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8048 tcp->payload_len, tcp->payload) ||
8049 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8050 tcp->data_interval) ||
8051 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8052 tcp->wake_len, tcp->wake_data) ||
8053 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8054 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8055 return -ENOBUFS;
8056
8057 if (tcp->payload_seq.len &&
8058 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8059 sizeof(tcp->payload_seq), &tcp->payload_seq))
8060 return -ENOBUFS;
8061
8062 if (tcp->payload_tok.len &&
8063 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8064 sizeof(tcp->payload_tok) + tcp->tokens_size,
8065 &tcp->payload_tok))
8066 return -ENOBUFS;
8067
e248ad30
JB		 8068 nla_nest_end(msg, nl_tcp);
8069
2a0e047e
JB		 8070 return 0;
8071}
8072
ff1b6e69
JB		 8073static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8074{
8075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8076 struct sk_buff *msg;
8077 void *hdr;
2a0e047e 8078 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8079
964dc9e2 8080 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8081 return -EOPNOTSUPP;
8082
6abb9cb9 8083 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8084 /* adjust size to have room for all the data */
6abb9cb9
JB		 8085 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8086 rdev->wiphy.wowlan_config->tcp->payload_len +
8087 rdev->wiphy.wowlan_config->tcp->wake_len +
8088 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8089 }
8090
8091 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8092 if (!msg)
8093 return -ENOMEM;
8094
15e47304 8095 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8096 NL80211_CMD_GET_WOWLAN);
8097 if (!hdr)
8098 goto nla_put_failure;
8099
6abb9cb9 8100 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8101 struct nlattr *nl_wowlan;
8102
8103 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8104 if (!nl_wowlan)
8105 goto nla_put_failure;
8106
6abb9cb9 8107 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8108 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8109 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8110 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8111 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8112 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8113 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8114 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8115 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8116 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8117 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8118 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8119 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8120 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8121 goto nla_put_failure;
2a0e047e 8122
bb92d199
AK		 8123 if (nl80211_send_wowlan_patterns(msg, rdev))
8124 goto nla_put_failure;
2a0e047e 8125
6abb9cb9
JB		 8126 if (nl80211_send_wowlan_tcp(msg,
8127 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8128 goto nla_put_failure;
8129
ff1b6e69
JB		 8130 nla_nest_end(msg, nl_wowlan);
8131 }
8132
8133 genlmsg_end(msg, hdr);
8134 return genlmsg_reply(msg, info);
8135
8136nla_put_failure:
8137 nlmsg_free(msg);
8138 return -ENOBUFS;
8139}
8140
2a0e047e
JB		 8141static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8142 struct nlattr *attr,
8143 struct cfg80211_wowlan *trig)
8144{
8145 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8146 struct cfg80211_wowlan_tcp *cfg;
8147 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8148 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8149 u32 size;
8150 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8151 int err, port;
8152
964dc9e2 8153 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8154 return -EINVAL;
8155
8156 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8157 nla_data(attr), nla_len(attr),
8158 nl80211_wowlan_tcp_policy);
8159 if (err)
8160 return err;
8161
8162 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8163 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8164 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8165 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8166 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8167 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8168 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8169 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8170 return -EINVAL;
8171
8172 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8173 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8174 return -EINVAL;
8175
8176 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8177 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8178 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8179 return -EINVAL;
8180
8181 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8182 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8183 return -EINVAL;
8184
8185 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8186 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8187 return -EINVAL;
8188
8189 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8190 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8191
8192 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8193 tokens_size = tokln - sizeof(*tok);
8194
8195 if (!tok->len || tokens_size % tok->len)
8196 return -EINVAL;
964dc9e2 8197 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8198 return -EINVAL;
964dc9e2 8199 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8200 return -EINVAL;
964dc9e2 8201 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8202 return -EINVAL;
964dc9e2 8203 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8204 return -EINVAL;
8205 if (tok->offset + tok->len > data_size)
8206 return -EINVAL;
8207 }
8208
8209 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8210 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8211 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8212 return -EINVAL;
8213 if (seq->len == 0 || seq->len > 4)
8214 return -EINVAL;
8215 if (seq->len + seq->offset > data_size)
8216 return -EINVAL;
8217 }
8218
8219 size = sizeof(*cfg);
8220 size += data_size;
8221 size += wake_size + wake_mask_size;
8222 size += tokens_size;
8223
8224 cfg = kzalloc(size, GFP_KERNEL);
8225 if (!cfg)
8226 return -ENOMEM;
8227 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8228 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8229 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8230 ETH_ALEN);
8231 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8232 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8233 else
8234 port = 0;
8235#ifdef CONFIG_INET
8236 /* allocate a socket and port for it and use it */
8237 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8238 IPPROTO_TCP, &cfg->sock, 1);
8239 if (err) {
8240 kfree(cfg);
8241 return err;
8242 }
8243 if (inet_csk_get_port(cfg->sock->sk, port)) {
8244 sock_release(cfg->sock);
8245 kfree(cfg);
8246 return -EADDRINUSE;
8247 }
8248 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8249#else
8250 if (!port) {
8251 kfree(cfg);
8252 return -EINVAL;
8253 }
8254 cfg->src_port = port;
8255#endif
8256
8257 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8258 cfg->payload_len = data_size;
8259 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8260 memcpy((void *)cfg->payload,
8261 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8262 data_size);
8263 if (seq)
8264 cfg->payload_seq = *seq;
8265 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8266 cfg->wake_len = wake_size;
8267 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8268 memcpy((void *)cfg->wake_data,
8269 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8270 wake_size);
8271 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8272 data_size + wake_size;
8273 memcpy((void *)cfg->wake_mask,
8274 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8275 wake_mask_size);
8276 if (tok) {
8277 cfg->tokens_size = tokens_size;
8278 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8279 }
8280
8281 trig->tcp = cfg;
8282
8283 return 0;
8284}
8285
ff1b6e69
JB		 8286static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8287{
8288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8289 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8290 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8291 struct cfg80211_wowlan *ntrig;
964dc9e2 8292 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8293 int err, i;
6abb9cb9 8294 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8295
964dc9e2 8296 if (!wowlan)
ff1b6e69
JB		 8297 return -EOPNOTSUPP;
8298
ae33bd81
JB		 8299 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8300 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8301 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8302 goto set_wakeup;
8303 }
ff1b6e69
JB		 8304
8305 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8306 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8307 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8308 nl80211_wowlan_policy);
8309 if (err)
8310 return err;
8311
8312 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8313 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8314 return -EINVAL;
8315 new_triggers.any = true;
8316 }
8317
8318 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8319 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8320 return -EINVAL;
8321 new_triggers.disconnect = true;
8322 }
8323
8324 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8325 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8326 return -EINVAL;
8327 new_triggers.magic_pkt = true;
8328 }
8329
77dbbb13
JB		 8330 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8331 return -EINVAL;
8332
8333 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8334 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8335 return -EINVAL;
8336 new_triggers.gtk_rekey_failure = true;
8337 }
8338
8339 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8340 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8341 return -EINVAL;
8342 new_triggers.eap_identity_req = true;
8343 }
8344
8345 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8346 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8347 return -EINVAL;
8348 new_triggers.four_way_handshake = true;
8349 }
8350
8351 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8352 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8353 return -EINVAL;
8354 new_triggers.rfkill_release = true;
8355 }
8356
ff1b6e69
JB		 8357 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8358 struct nlattr *pat;
8359 int n_patterns = 0;
bb92d199 8360 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8361 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8362
8363 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8364 rem)
8365 n_patterns++;
8366 if (n_patterns > wowlan->n_patterns)
8367 return -EINVAL;
8368
8369 new_triggers.patterns = kcalloc(n_patterns,
8370 sizeof(new_triggers.patterns[0]),
8371 GFP_KERNEL);
8372 if (!new_triggers.patterns)
8373 return -ENOMEM;
8374
8375 new_triggers.n_patterns = n_patterns;
8376 i = 0;
8377
8378 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8379 rem) {
50ac6607
AK		 8380 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8381 nla_len(pat), NULL);
ff1b6e69 8382 err = -EINVAL;
50ac6607
AK		 8383 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8384 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8385 goto error;
50ac6607 8386 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8387 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8388 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8389 goto error;
8390 if (pat_len > wowlan->pattern_max_len ||
8391 pat_len < wowlan->pattern_min_len)
8392 goto error;
8393
50ac6607 8394 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8395 pkt_offset = 0;
8396 else
8397 pkt_offset = nla_get_u32(
50ac6607 8398 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8399 if (pkt_offset > wowlan->max_pkt_offset)
8400 goto error;
8401 new_triggers.patterns[i].pkt_offset = pkt_offset;
8402
ff1b6e69
JB		 8403 new_triggers.patterns[i].mask =
8404 kmalloc(mask_len + pat_len, GFP_KERNEL);
8405 if (!new_triggers.patterns[i].mask) {
8406 err = -ENOMEM;
8407 goto error;
8408 }
8409 new_triggers.patterns[i].pattern =
8410 new_triggers.patterns[i].mask + mask_len;
8411 memcpy(new_triggers.patterns[i].mask,
50ac6607 8412 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8413 mask_len);
8414 new_triggers.patterns[i].pattern_len = pat_len;
8415 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8416 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8417 pat_len);
8418 i++;
8419 }
8420 }
8421
2a0e047e
JB		 8422 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8423 err = nl80211_parse_wowlan_tcp(
8424 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8425 &new_triggers);
8426 if (err)
8427 goto error;
8428 }
8429
ae33bd81
JB		 8430 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8431 if (!ntrig) {
8432 err = -ENOMEM;
8433 goto error;
ff1b6e69 8434 }
ae33bd81 8435 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8436 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8437
ae33bd81 8438 set_wakeup:
6abb9cb9
JB		 8439 if (rdev->ops->set_wakeup &&
8440 prev_enabled != !!rdev->wiphy.wowlan_config)
8441 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8442
ff1b6e69
JB		 8443 return 0;
8444 error:
8445 for (i = 0; i < new_triggers.n_patterns; i++)
8446 kfree(new_triggers.patterns[i].mask);
8447 kfree(new_triggers.patterns);
2a0e047e
JB		 8448 if (new_triggers.tcp && new_triggers.tcp->sock)
8449 sock_release(new_triggers.tcp->sock);
8450 kfree(new_triggers.tcp);
ff1b6e69
JB		 8451 return err;
8452}
dfb89c56 8453#endif
ff1b6e69 8454
be29b99a
AK		 8455static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8456 struct cfg80211_registered_device *rdev)
8457{
8458 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8459 int i, j, pat_len;
8460 struct cfg80211_coalesce_rules *rule;
8461
8462 if (!rdev->coalesce->n_rules)
8463 return 0;
8464
8465 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8466 if (!nl_rules)
8467 return -ENOBUFS;
8468
8469 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8470 nl_rule = nla_nest_start(msg, i + 1);
8471 if (!nl_rule)
8472 return -ENOBUFS;
8473
8474 rule = &rdev->coalesce->rules[i];
8475 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8476 rule->delay))
8477 return -ENOBUFS;
8478
8479 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8480 rule->condition))
8481 return -ENOBUFS;
8482
8483 nl_pats = nla_nest_start(msg,
8484 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8485 if (!nl_pats)
8486 return -ENOBUFS;
8487
8488 for (j = 0; j < rule->n_patterns; j++) {
8489 nl_pat = nla_nest_start(msg, j + 1);
8490 if (!nl_pat)
8491 return -ENOBUFS;
8492 pat_len = rule->patterns[j].pattern_len;
8493 if (nla_put(msg, NL80211_PKTPAT_MASK,
8494 DIV_ROUND_UP(pat_len, 8),
8495 rule->patterns[j].mask) ||
8496 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8497 rule->patterns[j].pattern) ||
8498 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8499 rule->patterns[j].pkt_offset))
8500 return -ENOBUFS;
8501 nla_nest_end(msg, nl_pat);
8502 }
8503 nla_nest_end(msg, nl_pats);
8504 nla_nest_end(msg, nl_rule);
8505 }
8506 nla_nest_end(msg, nl_rules);
8507
8508 return 0;
8509}
8510
8511static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8512{
8513 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8514 struct sk_buff *msg;
8515 void *hdr;
8516
8517 if (!rdev->wiphy.coalesce)
8518 return -EOPNOTSUPP;
8519
8520 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8521 if (!msg)
8522 return -ENOMEM;
8523
8524 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8525 NL80211_CMD_GET_COALESCE);
8526 if (!hdr)
8527 goto nla_put_failure;
8528
8529 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8530 goto nla_put_failure;
8531
8532 genlmsg_end(msg, hdr);
8533 return genlmsg_reply(msg, info);
8534
8535nla_put_failure:
8536 nlmsg_free(msg);
8537 return -ENOBUFS;
8538}
8539
8540void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8541{
8542 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8543 int i, j;
8544 struct cfg80211_coalesce_rules *rule;
8545
8546 if (!coalesce)
8547 return;
8548
8549 for (i = 0; i < coalesce->n_rules; i++) {
8550 rule = &coalesce->rules[i];
8551 for (j = 0; j < rule->n_patterns; j++)
8552 kfree(rule->patterns[j].mask);
8553 kfree(rule->patterns);
8554 }
8555 kfree(coalesce->rules);
8556 kfree(coalesce);
8557 rdev->coalesce = NULL;
8558}
8559
8560static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8561 struct nlattr *rule,
8562 struct cfg80211_coalesce_rules *new_rule)
8563{
8564 int err, i;
8565 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8566 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8567 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8568 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8569
8570 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8571 nla_len(rule), nl80211_coalesce_policy);
8572 if (err)
8573 return err;
8574
8575 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8576 new_rule->delay =
8577 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8578 if (new_rule->delay > coalesce->max_delay)
8579 return -EINVAL;
8580
8581 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8582 new_rule->condition =
8583 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8584 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8585 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8586 return -EINVAL;
8587
8588 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8589 return -EINVAL;
8590
8591 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8592 rem)
8593 n_patterns++;
8594 if (n_patterns > coalesce->n_patterns)
8595 return -EINVAL;
8596
8597 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8598 GFP_KERNEL);
8599 if (!new_rule->patterns)
8600 return -ENOMEM;
8601
8602 new_rule->n_patterns = n_patterns;
8603 i = 0;
8604
8605 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8606 rem) {
8607 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8608 nla_len(pat), NULL);
8609 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8610 !pat_tb[NL80211_PKTPAT_PATTERN])
8611 return -EINVAL;
8612 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8613 mask_len = DIV_ROUND_UP(pat_len, 8);
8614 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8615 return -EINVAL;
8616 if (pat_len > coalesce->pattern_max_len ||
8617 pat_len < coalesce->pattern_min_len)
8618 return -EINVAL;
8619
8620 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8621 pkt_offset = 0;
8622 else
8623 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8624 if (pkt_offset > coalesce->max_pkt_offset)
8625 return -EINVAL;
8626 new_rule->patterns[i].pkt_offset = pkt_offset;
8627
8628 new_rule->patterns[i].mask =
8629 kmalloc(mask_len + pat_len, GFP_KERNEL);
8630 if (!new_rule->patterns[i].mask)
8631 return -ENOMEM;
8632 new_rule->patterns[i].pattern =
8633 new_rule->patterns[i].mask + mask_len;
8634 memcpy(new_rule->patterns[i].mask,
8635 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8636 new_rule->patterns[i].pattern_len = pat_len;
8637 memcpy(new_rule->patterns[i].pattern,
8638 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8639 i++;
8640 }
8641
8642 return 0;
8643}
8644
8645static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8646{
8647 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8648 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8649 struct cfg80211_coalesce new_coalesce = {};
8650 struct cfg80211_coalesce *n_coalesce;
8651 int err, rem_rule, n_rules = 0, i, j;
8652 struct nlattr *rule;
8653 struct cfg80211_coalesce_rules *tmp_rule;
8654
8655 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8656 return -EOPNOTSUPP;
8657
8658 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8659 cfg80211_rdev_free_coalesce(rdev);
8660 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8661 return 0;
8662 }
8663
8664 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8665 rem_rule)
8666 n_rules++;
8667 if (n_rules > coalesce->n_rules)
8668 return -EINVAL;
8669
8670 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8671 GFP_KERNEL);
8672 if (!new_coalesce.rules)
8673 return -ENOMEM;
8674
8675 new_coalesce.n_rules = n_rules;
8676 i = 0;
8677
8678 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8679 rem_rule) {
8680 err = nl80211_parse_coalesce_rule(rdev, rule,
8681 &new_coalesce.rules[i]);
8682 if (err)
8683 goto error;
8684
8685 i++;
8686 }
8687
8688 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8689 if (err)
8690 goto error;
8691
8692 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8693 if (!n_coalesce) {
8694 err = -ENOMEM;
8695 goto error;
8696 }
8697 cfg80211_rdev_free_coalesce(rdev);
8698 rdev->coalesce = n_coalesce;
8699
8700 return 0;
8701error:
8702 for (i = 0; i < new_coalesce.n_rules; i++) {
8703 tmp_rule = &new_coalesce.rules[i];
8704 for (j = 0; j < tmp_rule->n_patterns; j++)
8705 kfree(tmp_rule->patterns[j].mask);
8706 kfree(tmp_rule->patterns);
8707 }
8708 kfree(new_coalesce.rules);
8709
8710 return err;
8711}
8712
e5497d76
JB		 8713static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8714{
8715 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8716 struct net_device *dev = info->user_ptr[1];
8717 struct wireless_dev *wdev = dev->ieee80211_ptr;
8718 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8719 struct cfg80211_gtk_rekey_data rekey_data;
8720 int err;
8721
8722 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8723 return -EINVAL;
8724
8725 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8726 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8727 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8728 nl80211_rekey_policy);
8729 if (err)
8730 return err;
8731
8732 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8733 return -ERANGE;
8734 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8735 return -ERANGE;
8736 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8737 return -ERANGE;
8738
8739 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8740 NL80211_KEK_LEN);
8741 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8742 NL80211_KCK_LEN);
8743 memcpy(rekey_data.replay_ctr,
8744 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8745 NL80211_REPLAY_CTR_LEN);
8746
8747 wdev_lock(wdev);
8748 if (!wdev->current_bss) {
8749 err = -ENOTCONN;
8750 goto out;
8751 }
8752
8753 if (!rdev->ops->set_rekey_data) {
8754 err = -EOPNOTSUPP;
8755 goto out;
8756 }
8757
e35e4d28 8758 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8759 out:
8760 wdev_unlock(wdev);
8761 return err;
8762}
8763
28946da7
JB		 8764static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8765 struct genl_info *info)
8766{
8767 struct net_device *dev = info->user_ptr[1];
8768 struct wireless_dev *wdev = dev->ieee80211_ptr;
8769
8770 if (wdev->iftype != NL80211_IFTYPE_AP &&
8771 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8772 return -EINVAL;
8773
15e47304 8774 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8775 return -EBUSY;
8776
15e47304 8777 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8778 return 0;
8779}
8780
7f6cf311
JB		 8781static int nl80211_probe_client(struct sk_buff *skb,
8782 struct genl_info *info)
8783{
8784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8785 struct net_device *dev = info->user_ptr[1];
8786 struct wireless_dev *wdev = dev->ieee80211_ptr;
8787 struct sk_buff *msg;
8788 void *hdr;
8789 const u8 *addr;
8790 u64 cookie;
8791 int err;
8792
8793 if (wdev->iftype != NL80211_IFTYPE_AP &&
8794 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8795 return -EOPNOTSUPP;
8796
8797 if (!info->attrs[NL80211_ATTR_MAC])
8798 return -EINVAL;
8799
8800 if (!rdev->ops->probe_client)
8801 return -EOPNOTSUPP;
8802
8803 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8804 if (!msg)
8805 return -ENOMEM;
8806
15e47304 8807 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8808 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8809 if (!hdr) {
8810 err = -ENOBUFS;
7f6cf311
JB		 8811 goto free_msg;
8812 }
8813
8814 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8815
e35e4d28 8816 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8817 if (err)
8818 goto free_msg;
8819
9360ffd1
DM		 8820 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8821 goto nla_put_failure;
7f6cf311
JB		 8822
8823 genlmsg_end(msg, hdr);
8824
8825 return genlmsg_reply(msg, info);
8826
8827 nla_put_failure:
8828 err = -ENOBUFS;
8829 free_msg:
8830 nlmsg_free(msg);
8831 return err;
8832}
8833
5e760230
JB		 8834static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8835{
8836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8837 struct cfg80211_beacon_registration *reg, *nreg;
8838 int rv;
5e760230
JB		 8839
8840 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8841 return -EOPNOTSUPP;
8842
37c73b5f
BG		 8843 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8844 if (!nreg)
8845 return -ENOMEM;
8846
8847 /* First, check if already registered. */
8848 spin_lock_bh(&rdev->beacon_registrations_lock);
8849 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8850 if (reg->nlportid == info->snd_portid) {
8851 rv = -EALREADY;
8852 goto out_err;
8853 }
8854 }
8855 /* Add it to the list */
8856 nreg->nlportid = info->snd_portid;
8857 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8858
37c73b5f 8859 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8860
8861 return 0;
37c73b5f
BG		 8862out_err:
8863 spin_unlock_bh(&rdev->beacon_registrations_lock);
8864 kfree(nreg);
8865 return rv;
5e760230
JB		 8866}
8867
98104fde
JB		 8868static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8869{
8870 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8871 struct wireless_dev *wdev = info->user_ptr[1];
8872 int err;
8873
8874 if (!rdev->ops->start_p2p_device)
8875 return -EOPNOTSUPP;
8876
8877 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8878 return -EOPNOTSUPP;
8879
8880 if (wdev->p2p_started)
8881 return 0;
8882
98104fde 8883 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8884 if (err)
8885 return err;
8886
eeb126e9 8887 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8888 if (err)
8889 return err;
8890
8891 wdev->p2p_started = true;
98104fde 8892 rdev->opencount++;
98104fde
JB		 8893
8894 return 0;
8895}
8896
8897static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8898{
8899 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8900 struct wireless_dev *wdev = info->user_ptr[1];
8901
8902 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8903 return -EOPNOTSUPP;
8904
8905 if (!rdev->ops->stop_p2p_device)
8906 return -EOPNOTSUPP;
8907
f9f47529 8908 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8909
8910 return 0;
8911}
8912
3713b4e3
JB		 8913static int nl80211_get_protocol_features(struct sk_buff *skb,
8914 struct genl_info *info)
8915{
8916 void *hdr;
8917 struct sk_buff *msg;
8918
8919 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8920 if (!msg)
8921 return -ENOMEM;
8922
8923 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8924 NL80211_CMD_GET_PROTOCOL_FEATURES);
8925 if (!hdr)
8926 goto nla_put_failure;
8927
8928 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8929 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8930 goto nla_put_failure;
8931
8932 genlmsg_end(msg, hdr);
8933 return genlmsg_reply(msg, info);
8934
8935 nla_put_failure:
8936 kfree_skb(msg);
8937 return -ENOBUFS;
8938}
8939
355199e0
JM		 8940static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8941{
8942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8943 struct cfg80211_update_ft_ies_params ft_params;
8944 struct net_device *dev = info->user_ptr[1];
8945
8946 if (!rdev->ops->update_ft_ies)
8947 return -EOPNOTSUPP;
8948
8949 if (!info->attrs[NL80211_ATTR_MDID] ||
8950 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8951 return -EINVAL;
8952
8953 memset(&ft_params, 0, sizeof(ft_params));
8954 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8955 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8956 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8957
8958 return rdev_update_ft_ies(rdev, dev, &ft_params);
8959}
8960
5de17984
AS		 8961static int nl80211_crit_protocol_start(struct sk_buff *skb,
8962 struct genl_info *info)
8963{
8964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8965 struct wireless_dev *wdev = info->user_ptr[1];
8966 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8967 u16 duration;
8968 int ret;
8969
8970 if (!rdev->ops->crit_proto_start)
8971 return -EOPNOTSUPP;
8972
8973 if (WARN_ON(!rdev->ops->crit_proto_stop))
8974 return -EINVAL;
8975
8976 if (rdev->crit_proto_nlportid)
8977 return -EBUSY;
8978
8979 /* determine protocol if provided */
8980 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8981 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8982
8983 if (proto >= NUM_NL80211_CRIT_PROTO)
8984 return -EINVAL;
8985
8986 /* timeout must be provided */
8987 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8988 return -EINVAL;
8989
8990 duration =
8991 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8992
8993 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8994 return -ERANGE;
8995
8996 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8997 if (!ret)
8998 rdev->crit_proto_nlportid = info->snd_portid;
8999
9000 return ret;
9001}
9002
9003static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9004 struct genl_info *info)
9005{
9006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9007 struct wireless_dev *wdev = info->user_ptr[1];
9008
9009 if (!rdev->ops->crit_proto_stop)
9010 return -EOPNOTSUPP;
9011
9012 if (rdev->crit_proto_nlportid) {
9013 rdev->crit_proto_nlportid = 0;
9014 rdev_crit_proto_stop(rdev, wdev);
9015 }
9016 return 0;
9017}
9018
ad7e718c
JB		 9019static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9020{
9021 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9022 struct wireless_dev *wdev =
9023 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9024 int i, err;
9025 u32 vid, subcmd;
9026
9027 if (!rdev->wiphy.vendor_commands)
9028 return -EOPNOTSUPP;
9029
9030 if (IS_ERR(wdev)) {
9031 err = PTR_ERR(wdev);
9032 if (err != -EINVAL)
9033 return err;
9034 wdev = NULL;
9035 } else if (wdev->wiphy != &rdev->wiphy) {
9036 return -EINVAL;
9037 }
9038
9039 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9040 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9041 return -EINVAL;
9042
9043 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9044 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9045 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9046 const struct wiphy_vendor_command *vcmd;
9047 void *data = NULL;
9048 int len = 0;
9049
9050 vcmd = &rdev->wiphy.vendor_commands[i];
9051
9052 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9053 continue;
9054
9055 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9056 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9057 if (!wdev)
9058 return -EINVAL;
9059 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9060 !wdev->netdev)
9061 return -EINVAL;
9062
9063 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9064 if (wdev->netdev &&
9065 !netif_running(wdev->netdev))
9066 return -ENETDOWN;
9067 if (!wdev->netdev && !wdev->p2p_started)
9068 return -ENETDOWN;
9069 }
9070 } else {
9071 wdev = NULL;
9072 }
9073
9074 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9075 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9076 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9077 }
9078
9079 rdev->cur_cmd_info = info;
9080 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9081 data, len);
9082 rdev->cur_cmd_info = NULL;
9083 return err;
9084 }
9085
9086 return -EOPNOTSUPP;
9087}
9088
9089struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9090 enum nl80211_commands cmd,
9091 enum nl80211_attrs attr,
9092 int approxlen)
9093{
9094 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9095
9096 if (WARN_ON(!rdev->cur_cmd_info))
9097 return NULL;
9098
9099 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9100 rdev->cur_cmd_info->snd_portid,
9101 rdev->cur_cmd_info->snd_seq,
567ffc35 9102 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9103}
9104EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9105
9106int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9107{
9108 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9109 void *hdr = ((void **)skb->cb)[1];
9110 struct nlattr *data = ((void **)skb->cb)[2];
9111
9112 if (WARN_ON(!rdev->cur_cmd_info)) {
9113 kfree_skb(skb);
9114 return -EINVAL;
9115 }
9116
9117 nla_nest_end(skb, data);
9118 genlmsg_end(skb, hdr);
9119 return genlmsg_reply(skb, rdev->cur_cmd_info);
9120}
9121EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9122
9123
fa9ffc74
KP		 9124static int nl80211_set_qos_map(struct sk_buff *skb,
9125 struct genl_info *info)
9126{
9127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9128 struct cfg80211_qos_map *qos_map = NULL;
9129 struct net_device *dev = info->user_ptr[1];
9130 u8 *pos, len, num_des, des_len, des;
9131 int ret;
9132
9133 if (!rdev->ops->set_qos_map)
9134 return -EOPNOTSUPP;
9135
9136 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9137 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9138 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9139
9140 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9141 len > IEEE80211_QOS_MAP_LEN_MAX)
9142 return -EINVAL;
9143
9144 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9145 if (!qos_map)
9146 return -ENOMEM;
9147
9148 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9149 if (num_des) {
9150 des_len = num_des *
9151 sizeof(struct cfg80211_dscp_exception);
9152 memcpy(qos_map->dscp_exception, pos, des_len);
9153 qos_map->num_des = num_des;
9154 for (des = 0; des < num_des; des++) {
9155 if (qos_map->dscp_exception[des].up > 7) {
9156 kfree(qos_map);
9157 return -EINVAL;
9158 }
9159 }
9160 pos += des_len;
9161 }
9162 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9163 }
9164
9165 wdev_lock(dev->ieee80211_ptr);
9166 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9167 if (!ret)
9168 ret = rdev_set_qos_map(rdev, dev, qos_map);
9169 wdev_unlock(dev->ieee80211_ptr);
9170
9171 kfree(qos_map);
9172 return ret;
9173}
9174
4c476991
JB		 9175#define NL80211_FLAG_NEED_WIPHY 0x01
9176#define NL80211_FLAG_NEED_NETDEV 0x02
9177#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9178#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9179#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9180 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9181#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9182/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9183#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9184 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9185
f84f771d 9186static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9187 struct genl_info *info)
9188{
9189 struct cfg80211_registered_device *rdev;
89a54e48 9190 struct wireless_dev *wdev;
4c476991 9191 struct net_device *dev;
4c476991
JB		 9192 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9193
9194 if (rtnl)
9195 rtnl_lock();
9196
9197 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9198 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9199 if (IS_ERR(rdev)) {
9200 if (rtnl)
9201 rtnl_unlock();
9202 return PTR_ERR(rdev);
9203 }
9204 info->user_ptr[0] = rdev;
1bf614ef
JB		 9205 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9206 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9207 ASSERT_RTNL();
9208
89a54e48
JB		 9209 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9210 info->attrs);
9211 if (IS_ERR(wdev)) {
4c476991
JB		 9212 if (rtnl)
9213 rtnl_unlock();
89a54e48 9214 return PTR_ERR(wdev);
4c476991 9215 }
89a54e48 9216
89a54e48
JB		 9217 dev = wdev->netdev;
9218 rdev = wiphy_to_dev(wdev->wiphy);
9219
1bf614ef
JB		 9220 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9221 if (!dev) {
1bf614ef
JB		 9222 if (rtnl)
9223 rtnl_unlock();
9224 return -EINVAL;
9225 }
9226
9227 info->user_ptr[1] = dev;
9228 } else {
9229 info->user_ptr[1] = wdev;
41265714 9230 }
1bf614ef
JB		 9231
9232 if (dev) {
9233 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9234 !netif_running(dev)) {
1bf614ef
JB		 9235 if (rtnl)
9236 rtnl_unlock();
9237 return -ENETDOWN;
9238 }
9239
9240 dev_hold(dev);
98104fde
JB		 9241 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9242 if (!wdev->p2p_started) {
98104fde
JB		 9243 if (rtnl)
9244 rtnl_unlock();
9245 return -ENETDOWN;
9246 }
41265714 9247 }
89a54e48 9248
4c476991 9249 info->user_ptr[0] = rdev;
4c476991
JB		 9250 }
9251
9252 return 0;
9253}
9254
f84f771d 9255static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9256 struct genl_info *info)
9257{
1bf614ef
JB		 9258 if (info->user_ptr[1]) {
9259 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9260 struct wireless_dev *wdev = info->user_ptr[1];
9261
9262 if (wdev->netdev)
9263 dev_put(wdev->netdev);
9264 } else {
9265 dev_put(info->user_ptr[1]);
9266 }
9267 }
4c476991
JB		 9268 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9269 rtnl_unlock();
9270}
9271
4534de83 9272static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9273 {
9274 .cmd = NL80211_CMD_GET_WIPHY,
9275 .doit = nl80211_get_wiphy,
9276 .dumpit = nl80211_dump_wiphy,
86e8cf98 9277 .done = nl80211_dump_wiphy_done,
55682965
JB		 9278 .policy = nl80211_policy,
9279 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9280 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9281 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9282 },
9283 {
9284 .cmd = NL80211_CMD_SET_WIPHY,
9285 .doit = nl80211_set_wiphy,
9286 .policy = nl80211_policy,
9287 .flags = GENL_ADMIN_PERM,
4c476991 9288 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9289 },
9290 {
9291 .cmd = NL80211_CMD_GET_INTERFACE,
9292 .doit = nl80211_get_interface,
9293 .dumpit = nl80211_dump_interface,
9294 .policy = nl80211_policy,
9295 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9296 .internal_flags = NL80211_FLAG_NEED_WDEV |
9297 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9298 },
9299 {
9300 .cmd = NL80211_CMD_SET_INTERFACE,
9301 .doit = nl80211_set_interface,
9302 .policy = nl80211_policy,
9303 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9304 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9305 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9306 },
9307 {
9308 .cmd = NL80211_CMD_NEW_INTERFACE,
9309 .doit = nl80211_new_interface,
9310 .policy = nl80211_policy,
9311 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9312 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9313 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9314 },
9315 {
9316 .cmd = NL80211_CMD_DEL_INTERFACE,
9317 .doit = nl80211_del_interface,
9318 .policy = nl80211_policy,
41ade00f 9319 .flags = GENL_ADMIN_PERM,
84efbb84 9320 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9321 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9322 },
9323 {
9324 .cmd = NL80211_CMD_GET_KEY,
9325 .doit = nl80211_get_key,
9326 .policy = nl80211_policy,
9327 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9328 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9329 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9330 },
9331 {
9332 .cmd = NL80211_CMD_SET_KEY,
9333 .doit = nl80211_set_key,
9334 .policy = nl80211_policy,
9335 .flags = GENL_ADMIN_PERM,
41265714 9336 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9337 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9338 },
9339 {
9340 .cmd = NL80211_CMD_NEW_KEY,
9341 .doit = nl80211_new_key,
9342 .policy = nl80211_policy,
9343 .flags = GENL_ADMIN_PERM,
41265714 9344 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9345 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9346 },
9347 {
9348 .cmd = NL80211_CMD_DEL_KEY,
9349 .doit = nl80211_del_key,
9350 .policy = nl80211_policy,
55682965 9351 .flags = GENL_ADMIN_PERM,
41265714 9352 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9353 NL80211_FLAG_NEED_RTNL,
55682965 9354 },
ed1b6cc7
JB		 9355 {
9356 .cmd = NL80211_CMD_SET_BEACON,
9357 .policy = nl80211_policy,
9358 .flags = GENL_ADMIN_PERM,
8860020e 9359 .doit = nl80211_set_beacon,
2b5f8b0b 9360 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9361 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9362 },
9363 {
8860020e 9364 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9365 .policy = nl80211_policy,
9366 .flags = GENL_ADMIN_PERM,
8860020e 9367 .doit = nl80211_start_ap,
2b5f8b0b 9368 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9369 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9370 },
9371 {
8860020e 9372 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9373 .policy = nl80211_policy,
9374 .flags = GENL_ADMIN_PERM,
8860020e 9375 .doit = nl80211_stop_ap,
2b5f8b0b 9376 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9377 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9378 },
5727ef1b
JB		 9379 {
9380 .cmd = NL80211_CMD_GET_STATION,
9381 .doit = nl80211_get_station,
2ec600d6 9382 .dumpit = nl80211_dump_station,
5727ef1b 9383 .policy = nl80211_policy,
4c476991
JB		 9384 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9385 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9386 },
9387 {
9388 .cmd = NL80211_CMD_SET_STATION,
9389 .doit = nl80211_set_station,
9390 .policy = nl80211_policy,
9391 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9393 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9394 },
9395 {
9396 .cmd = NL80211_CMD_NEW_STATION,
9397 .doit = nl80211_new_station,
9398 .policy = nl80211_policy,
9399 .flags = GENL_ADMIN_PERM,
41265714 9400 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9401 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9402 },
9403 {
9404 .cmd = NL80211_CMD_DEL_STATION,
9405 .doit = nl80211_del_station,
9406 .policy = nl80211_policy,
2ec600d6 9407 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9409 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9410 },
9411 {
9412 .cmd = NL80211_CMD_GET_MPATH,
9413 .doit = nl80211_get_mpath,
9414 .dumpit = nl80211_dump_mpath,
9415 .policy = nl80211_policy,
9416 .flags = GENL_ADMIN_PERM,
41265714 9417 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9418 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9419 },
9420 {
9421 .cmd = NL80211_CMD_SET_MPATH,
9422 .doit = nl80211_set_mpath,
9423 .policy = nl80211_policy,
9424 .flags = GENL_ADMIN_PERM,
41265714 9425 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9426 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9427 },
9428 {
9429 .cmd = NL80211_CMD_NEW_MPATH,
9430 .doit = nl80211_new_mpath,
9431 .policy = nl80211_policy,
9432 .flags = GENL_ADMIN_PERM,
41265714 9433 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9434 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9435 },
9436 {
9437 .cmd = NL80211_CMD_DEL_MPATH,
9438 .doit = nl80211_del_mpath,
9439 .policy = nl80211_policy,
9f1ba906 9440 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9441 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9442 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9443 },
9444 {
9445 .cmd = NL80211_CMD_SET_BSS,
9446 .doit = nl80211_set_bss,
9447 .policy = nl80211_policy,
b2e1b302 9448 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9449 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9450 NL80211_FLAG_NEED_RTNL,
b2e1b302 9451 },
f130347c
LR		 9452 {
9453 .cmd = NL80211_CMD_GET_REG,
9454 .doit = nl80211_get_reg,
9455 .policy = nl80211_policy,
5fe231e8 9456 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9457 /* can be retrieved by unprivileged users */
9458 },
b2e1b302
LR		 9459 {
9460 .cmd = NL80211_CMD_SET_REG,
9461 .doit = nl80211_set_reg,
9462 .policy = nl80211_policy,
9463 .flags = GENL_ADMIN_PERM,
5fe231e8 9464 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9465 },
9466 {
9467 .cmd = NL80211_CMD_REQ_SET_REG,
9468 .doit = nl80211_req_set_reg,
9469 .policy = nl80211_policy,
93da9cc1 9470 .flags = GENL_ADMIN_PERM,
9471 },
9472 {
24bdd9f4
JC		 9473 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9474 .doit = nl80211_get_mesh_config,
93da9cc1 9475 .policy = nl80211_policy,
9476 /* can be retrieved by unprivileged users */
2b5f8b0b 9477 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9478 NL80211_FLAG_NEED_RTNL,
93da9cc1 9479 },
9480 {
24bdd9f4
JC		 9481 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9482 .doit = nl80211_update_mesh_config,
93da9cc1 9483 .policy = nl80211_policy,
9aed3cc1 9484 .flags = GENL_ADMIN_PERM,
29cbe68c 9485 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9486 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9487 },
2a519311
JB		 9488 {
9489 .cmd = NL80211_CMD_TRIGGER_SCAN,
9490 .doit = nl80211_trigger_scan,
9491 .policy = nl80211_policy,
9492 .flags = GENL_ADMIN_PERM,
fd014284 9493 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9494 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9495 },
9496 {
9497 .cmd = NL80211_CMD_GET_SCAN,
9498 .policy = nl80211_policy,
9499 .dumpit = nl80211_dump_scan,
9500 },
807f8a8c
LC		 9501 {
9502 .cmd = NL80211_CMD_START_SCHED_SCAN,
9503 .doit = nl80211_start_sched_scan,
9504 .policy = nl80211_policy,
9505 .flags = GENL_ADMIN_PERM,
9506 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9507 NL80211_FLAG_NEED_RTNL,
9508 },
9509 {
9510 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9511 .doit = nl80211_stop_sched_scan,
9512 .policy = nl80211_policy,
9513 .flags = GENL_ADMIN_PERM,
9514 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9515 NL80211_FLAG_NEED_RTNL,
9516 },
636a5d36
JM		 9517 {
9518 .cmd = NL80211_CMD_AUTHENTICATE,
9519 .doit = nl80211_authenticate,
9520 .policy = nl80211_policy,
9521 .flags = GENL_ADMIN_PERM,
41265714 9522 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9523 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9524 },
9525 {
9526 .cmd = NL80211_CMD_ASSOCIATE,
9527 .doit = nl80211_associate,
9528 .policy = nl80211_policy,
9529 .flags = GENL_ADMIN_PERM,
41265714 9530 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9531 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9532 },
9533 {
9534 .cmd = NL80211_CMD_DEAUTHENTICATE,
9535 .doit = nl80211_deauthenticate,
9536 .policy = nl80211_policy,
9537 .flags = GENL_ADMIN_PERM,
41265714 9538 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9539 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9540 },
9541 {
9542 .cmd = NL80211_CMD_DISASSOCIATE,
9543 .doit = nl80211_disassociate,
9544 .policy = nl80211_policy,
9545 .flags = GENL_ADMIN_PERM,
41265714 9546 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9547 NL80211_FLAG_NEED_RTNL,
636a5d36 9548 },
04a773ad
JB		 9549 {
9550 .cmd = NL80211_CMD_JOIN_IBSS,
9551 .doit = nl80211_join_ibss,
9552 .policy = nl80211_policy,
9553 .flags = GENL_ADMIN_PERM,
41265714 9554 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9555 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9556 },
9557 {
9558 .cmd = NL80211_CMD_LEAVE_IBSS,
9559 .doit = nl80211_leave_ibss,
9560 .policy = nl80211_policy,
9561 .flags = GENL_ADMIN_PERM,
41265714 9562 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9563 NL80211_FLAG_NEED_RTNL,
04a773ad 9564 },
aff89a9b
JB		 9565#ifdef CONFIG_NL80211_TESTMODE
9566 {
9567 .cmd = NL80211_CMD_TESTMODE,
9568 .doit = nl80211_testmode_do,
71063f0e 9569 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9570 .policy = nl80211_policy,
9571 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9572 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9573 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9574 },
9575#endif
b23aa676
SO		 9576 {
9577 .cmd = NL80211_CMD_CONNECT,
9578 .doit = nl80211_connect,
9579 .policy = nl80211_policy,
9580 .flags = GENL_ADMIN_PERM,
41265714 9581 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9582 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9583 },
9584 {
9585 .cmd = NL80211_CMD_DISCONNECT,
9586 .doit = nl80211_disconnect,
9587 .policy = nl80211_policy,
9588 .flags = GENL_ADMIN_PERM,
41265714 9589 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9590 NL80211_FLAG_NEED_RTNL,
b23aa676 9591 },
463d0183
JB		 9592 {
9593 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9594 .doit = nl80211_wiphy_netns,
9595 .policy = nl80211_policy,
9596 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9597 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9598 NL80211_FLAG_NEED_RTNL,
463d0183 9599 },
61fa713c
HS		 9600 {
9601 .cmd = NL80211_CMD_GET_SURVEY,
9602 .policy = nl80211_policy,
9603 .dumpit = nl80211_dump_survey,
9604 },
67fbb16b
SO		 9605 {
9606 .cmd = NL80211_CMD_SET_PMKSA,
9607 .doit = nl80211_setdel_pmksa,
9608 .policy = nl80211_policy,
9609 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9610 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9611 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9612 },
9613 {
9614 .cmd = NL80211_CMD_DEL_PMKSA,
9615 .doit = nl80211_setdel_pmksa,
9616 .policy = nl80211_policy,
9617 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9618 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9619 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9620 },
9621 {
9622 .cmd = NL80211_CMD_FLUSH_PMKSA,
9623 .doit = nl80211_flush_pmksa,
9624 .policy = nl80211_policy,
9625 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9626 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9627 NL80211_FLAG_NEED_RTNL,
67fbb16b 9628 },
9588bbd5
JM		 9629 {
9630 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9631 .doit = nl80211_remain_on_channel,
9632 .policy = nl80211_policy,
9633 .flags = GENL_ADMIN_PERM,
71bbc994 9634 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9635 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9636 },
9637 {
9638 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9639 .doit = nl80211_cancel_remain_on_channel,
9640 .policy = nl80211_policy,
9641 .flags = GENL_ADMIN_PERM,
71bbc994 9642 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9643 NL80211_FLAG_NEED_RTNL,
9588bbd5 9644 },
13ae75b1
JM		 9645 {
9646 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9647 .doit = nl80211_set_tx_bitrate_mask,
9648 .policy = nl80211_policy,
9649 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9650 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9651 NL80211_FLAG_NEED_RTNL,
13ae75b1 9652 },
026331c4 9653 {
2e161f78
JB		 9654 .cmd = NL80211_CMD_REGISTER_FRAME,
9655 .doit = nl80211_register_mgmt,
026331c4
JM		 9656 .policy = nl80211_policy,
9657 .flags = GENL_ADMIN_PERM,
71bbc994 9658 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9659 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9660 },
9661 {
2e161f78
JB		 9662 .cmd = NL80211_CMD_FRAME,
9663 .doit = nl80211_tx_mgmt,
026331c4 9664 .policy = nl80211_policy,
f7ca38df 9665 .flags = GENL_ADMIN_PERM,
71bbc994 9666 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9667 NL80211_FLAG_NEED_RTNL,
9668 },
9669 {
9670 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9671 .doit = nl80211_tx_mgmt_cancel_wait,
9672 .policy = nl80211_policy,
026331c4 9673 .flags = GENL_ADMIN_PERM,
71bbc994 9674 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9675 NL80211_FLAG_NEED_RTNL,
026331c4 9676 },
ffb9eb3d
KV		 9677 {
9678 .cmd = NL80211_CMD_SET_POWER_SAVE,
9679 .doit = nl80211_set_power_save,
9680 .policy = nl80211_policy,
9681 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9682 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9683 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9684 },
9685 {
9686 .cmd = NL80211_CMD_GET_POWER_SAVE,
9687 .doit = nl80211_get_power_save,
9688 .policy = nl80211_policy,
9689 /* can be retrieved by unprivileged users */
4c476991
JB		 9690 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9691 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9692 },
d6dc1a38
JO		 9693 {
9694 .cmd = NL80211_CMD_SET_CQM,
9695 .doit = nl80211_set_cqm,
9696 .policy = nl80211_policy,
9697 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9698 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9699 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9700 },
f444de05
JB		 9701 {
9702 .cmd = NL80211_CMD_SET_CHANNEL,
9703 .doit = nl80211_set_channel,
9704 .policy = nl80211_policy,
9705 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9706 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9707 NL80211_FLAG_NEED_RTNL,
f444de05 9708 },
e8347eba
BJ		 9709 {
9710 .cmd = NL80211_CMD_SET_WDS_PEER,
9711 .doit = nl80211_set_wds_peer,
9712 .policy = nl80211_policy,
9713 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9714 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9715 NL80211_FLAG_NEED_RTNL,
e8347eba 9716 },
29cbe68c
JB		 9717 {
9718 .cmd = NL80211_CMD_JOIN_MESH,
9719 .doit = nl80211_join_mesh,
9720 .policy = nl80211_policy,
9721 .flags = GENL_ADMIN_PERM,
9722 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9723 NL80211_FLAG_NEED_RTNL,
9724 },
9725 {
9726 .cmd = NL80211_CMD_LEAVE_MESH,
9727 .doit = nl80211_leave_mesh,
9728 .policy = nl80211_policy,
9729 .flags = GENL_ADMIN_PERM,
9730 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9731 NL80211_FLAG_NEED_RTNL,
9732 },
dfb89c56 9733#ifdef CONFIG_PM
ff1b6e69
JB		 9734 {
9735 .cmd = NL80211_CMD_GET_WOWLAN,
9736 .doit = nl80211_get_wowlan,
9737 .policy = nl80211_policy,
9738 /* can be retrieved by unprivileged users */
9739 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9740 NL80211_FLAG_NEED_RTNL,
9741 },
9742 {
9743 .cmd = NL80211_CMD_SET_WOWLAN,
9744 .doit = nl80211_set_wowlan,
9745 .policy = nl80211_policy,
9746 .flags = GENL_ADMIN_PERM,
9747 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9748 NL80211_FLAG_NEED_RTNL,
9749 },
dfb89c56 9750#endif
e5497d76
JB		 9751 {
9752 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9753 .doit = nl80211_set_rekey_data,
9754 .policy = nl80211_policy,
9755 .flags = GENL_ADMIN_PERM,
9756 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9757 NL80211_FLAG_NEED_RTNL,
9758 },
109086ce
AN		 9759 {
9760 .cmd = NL80211_CMD_TDLS_MGMT,
9761 .doit = nl80211_tdls_mgmt,
9762 .policy = nl80211_policy,
9763 .flags = GENL_ADMIN_PERM,
9764 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9765 NL80211_FLAG_NEED_RTNL,
9766 },
9767 {
9768 .cmd = NL80211_CMD_TDLS_OPER,
9769 .doit = nl80211_tdls_oper,
9770 .policy = nl80211_policy,
9771 .flags = GENL_ADMIN_PERM,
9772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9773 NL80211_FLAG_NEED_RTNL,
9774 },
28946da7
JB		 9775 {
9776 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9777 .doit = nl80211_register_unexpected_frame,
9778 .policy = nl80211_policy,
9779 .flags = GENL_ADMIN_PERM,
9780 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9781 NL80211_FLAG_NEED_RTNL,
9782 },
7f6cf311
JB		 9783 {
9784 .cmd = NL80211_CMD_PROBE_CLIENT,
9785 .doit = nl80211_probe_client,
9786 .policy = nl80211_policy,
9787 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9788 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9789 NL80211_FLAG_NEED_RTNL,
9790 },
5e760230
JB		 9791 {
9792 .cmd = NL80211_CMD_REGISTER_BEACONS,
9793 .doit = nl80211_register_beacons,
9794 .policy = nl80211_policy,
9795 .flags = GENL_ADMIN_PERM,
9796 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9797 NL80211_FLAG_NEED_RTNL,
9798 },
1d9d9213
SW		 9799 {
9800 .cmd = NL80211_CMD_SET_NOACK_MAP,
9801 .doit = nl80211_set_noack_map,
9802 .policy = nl80211_policy,
9803 .flags = GENL_ADMIN_PERM,
9804 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9805 NL80211_FLAG_NEED_RTNL,
9806 },
98104fde
JB		 9807 {
9808 .cmd = NL80211_CMD_START_P2P_DEVICE,
9809 .doit = nl80211_start_p2p_device,
9810 .policy = nl80211_policy,
9811 .flags = GENL_ADMIN_PERM,
9812 .internal_flags = NL80211_FLAG_NEED_WDEV |
9813 NL80211_FLAG_NEED_RTNL,
9814 },
9815 {
9816 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9817 .doit = nl80211_stop_p2p_device,
9818 .policy = nl80211_policy,
9819 .flags = GENL_ADMIN_PERM,
9820 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9821 NL80211_FLAG_NEED_RTNL,
9822 },
f4e583c8
AQ		 9823 {
9824 .cmd = NL80211_CMD_SET_MCAST_RATE,
9825 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 9826 .policy = nl80211_policy,
9827 .flags = GENL_ADMIN_PERM,
9828 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9829 NL80211_FLAG_NEED_RTNL,
9830 },
9831 {
9832 .cmd = NL80211_CMD_SET_MAC_ACL,
9833 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 9834 .policy = nl80211_policy,
9835 .flags = GENL_ADMIN_PERM,
9836 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9837 NL80211_FLAG_NEED_RTNL,
9838 },
04f39047
SW		 9839 {
9840 .cmd = NL80211_CMD_RADAR_DETECT,
9841 .doit = nl80211_start_radar_detection,
9842 .policy = nl80211_policy,
9843 .flags = GENL_ADMIN_PERM,
9844 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9845 NL80211_FLAG_NEED_RTNL,
9846 },
3713b4e3
JB		 9847 {
9848 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9849 .doit = nl80211_get_protocol_features,
9850 .policy = nl80211_policy,
9851 },
355199e0
JM		 9852 {
9853 .cmd = NL80211_CMD_UPDATE_FT_IES,
9854 .doit = nl80211_update_ft_ies,
9855 .policy = nl80211_policy,
9856 .flags = GENL_ADMIN_PERM,
9857 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9858 NL80211_FLAG_NEED_RTNL,
9859 },
5de17984
AS		 9860 {
9861 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9862 .doit = nl80211_crit_protocol_start,
9863 .policy = nl80211_policy,
9864 .flags = GENL_ADMIN_PERM,
9865 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9866 NL80211_FLAG_NEED_RTNL,
9867 },
9868 {
9869 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9870 .doit = nl80211_crit_protocol_stop,
9871 .policy = nl80211_policy,
9872 .flags = GENL_ADMIN_PERM,
9873 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9874 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 9875 },
9876 {
9877 .cmd = NL80211_CMD_GET_COALESCE,
9878 .doit = nl80211_get_coalesce,
9879 .policy = nl80211_policy,
9880 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9881 NL80211_FLAG_NEED_RTNL,
9882 },
9883 {
9884 .cmd = NL80211_CMD_SET_COALESCE,
9885 .doit = nl80211_set_coalesce,
9886 .policy = nl80211_policy,
9887 .flags = GENL_ADMIN_PERM,
9888 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9889 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 9890 },
9891 {
9892 .cmd = NL80211_CMD_CHANNEL_SWITCH,
9893 .doit = nl80211_channel_switch,
9894 .policy = nl80211_policy,
9895 .flags = GENL_ADMIN_PERM,
9896 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9897 NL80211_FLAG_NEED_RTNL,
9898 },
ad7e718c
JB		 9899 {
9900 .cmd = NL80211_CMD_VENDOR,
9901 .doit = nl80211_vendor_cmd,
9902 .policy = nl80211_policy,
9903 .flags = GENL_ADMIN_PERM,
9904 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9905 NL80211_FLAG_NEED_RTNL,
9906 },
fa9ffc74
KP		 9907 {
9908 .cmd = NL80211_CMD_SET_QOS_MAP,
9909 .doit = nl80211_set_qos_map,
9910 .policy = nl80211_policy,
9911 .flags = GENL_ADMIN_PERM,
9912 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9913 NL80211_FLAG_NEED_RTNL,
9914 },
55682965 9915};
9588bbd5 9916
55682965
JB		 9917/* notification functions */
9918
9919void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9920{
9921 struct sk_buff *msg;
86e8cf98 9922 struct nl80211_dump_wiphy_state state = {};
55682965 9923
fd2120ca 9924 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 9925 if (!msg)
9926 return;
9927
86e8cf98 9928 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 9929 nlmsg_free(msg);
9930 return;
9931 }
9932
68eb5503 9933 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9934 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 9935}
9936
362a415d
JB		 9937static int nl80211_add_scan_req(struct sk_buff *msg,
9938 struct cfg80211_registered_device *rdev)
9939{
9940 struct cfg80211_scan_request *req = rdev->scan_req;
9941 struct nlattr *nest;
9942 int i;
9943
9944 if (WARN_ON(!req))
9945 return 0;
9946
9947 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9948 if (!nest)
9949 goto nla_put_failure;
9360ffd1
DM		 9950 for (i = 0; i < req->n_ssids; i++) {
9951 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9952 goto nla_put_failure;
9953 }
362a415d
JB		 9954 nla_nest_end(msg, nest);
9955
9956 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9957 if (!nest)
9958 goto nla_put_failure;
9360ffd1
DM		 9959 for (i = 0; i < req->n_channels; i++) {
9960 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9961 goto nla_put_failure;
9962 }
362a415d
JB		 9963 nla_nest_end(msg, nest);
9964
9360ffd1
DM		 9965 if (req->ie &&
9966 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9967 goto nla_put_failure;
362a415d 9968
ae917c9f
JB		 9969 if (req->flags &&
9970 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
9971 goto nla_put_failure;
ed473771 9972
362a415d
JB		 9973 return 0;
9974 nla_put_failure:
9975 return -ENOBUFS;
9976}
9977
a538e2d5
JB		 9978static int nl80211_send_scan_msg(struct sk_buff *msg,
9979 struct cfg80211_registered_device *rdev,
fd014284 9980 struct wireless_dev *wdev,
15e47304 9981 u32 portid, u32 seq, int flags,
a538e2d5 9982 u32 cmd)
2a519311
JB		 9983{
9984 void *hdr;
9985
15e47304 9986 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9987 if (!hdr)
9988 return -1;
9989
9360ffd1 9990 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9991 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9992 wdev->netdev->ifindex)) ||
9993 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9994 goto nla_put_failure;
2a519311 9995
362a415d
JB		 9996 /* ignore errors and send incomplete event anyway */
9997 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9998
9999 return genlmsg_end(msg, hdr);
10000
10001 nla_put_failure:
10002 genlmsg_cancel(msg, hdr);
10003 return -EMSGSIZE;
10004}
10005
807f8a8c
LC		 10006static int
10007nl80211_send_sched_scan_msg(struct sk_buff *msg,
10008 struct cfg80211_registered_device *rdev,
10009 struct net_device *netdev,
15e47304 10010 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10011{
10012 void *hdr;
10013
15e47304 10014 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10015 if (!hdr)
10016 return -1;
10017
9360ffd1
DM		 10018 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10019 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10020 goto nla_put_failure;
807f8a8c
LC		 10021
10022 return genlmsg_end(msg, hdr);
10023
10024 nla_put_failure:
10025 genlmsg_cancel(msg, hdr);
10026 return -EMSGSIZE;
10027}
10028
a538e2d5 10029void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10030 struct wireless_dev *wdev)
a538e2d5
JB		 10031{
10032 struct sk_buff *msg;
10033
58050fce 10034 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10035 if (!msg)
10036 return;
10037
fd014284 10038 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10039 NL80211_CMD_TRIGGER_SCAN) < 0) {
10040 nlmsg_free(msg);
10041 return;
10042 }
10043
68eb5503 10044 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10045 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10046}
10047
2a519311 10048void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 10049 struct wireless_dev *wdev)
2a519311
JB		 10050{
10051 struct sk_buff *msg;
10052
fd2120ca 10053 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 10054 if (!msg)
10055 return;
10056
fd014284 10057 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 10058 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 10059 nlmsg_free(msg);
10060 return;
10061 }
10062
68eb5503 10063 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10064 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10065}
10066
10067void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 10068 struct wireless_dev *wdev)
2a519311
JB		 10069{
10070 struct sk_buff *msg;
10071
fd2120ca 10072 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 10073 if (!msg)
10074 return;
10075
fd014284 10076 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 10077 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 10078 nlmsg_free(msg);
10079 return;
10080 }
10081
68eb5503 10082 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10083 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10084}
10085
807f8a8c
LC		 10086void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10087 struct net_device *netdev)
10088{
10089 struct sk_buff *msg;
10090
10091 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10092 if (!msg)
10093 return;
10094
10095 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10096 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10097 nlmsg_free(msg);
10098 return;
10099 }
10100
68eb5503 10101 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10102 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10103}
10104
10105void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10106 struct net_device *netdev, u32 cmd)
10107{
10108 struct sk_buff *msg;
10109
58050fce 10110 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10111 if (!msg)
10112 return;
10113
10114 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10115 nlmsg_free(msg);
10116 return;
10117 }
10118
68eb5503 10119 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10120 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10121}
10122
73d54c9e
LR		 10123/*
10124 * This can happen on global regulatory changes or device specific settings
10125 * based on custom world regulatory domains.
10126 */
10127void nl80211_send_reg_change_event(struct regulatory_request *request)
10128{
10129 struct sk_buff *msg;
10130 void *hdr;
10131
fd2120ca 10132 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10133 if (!msg)
10134 return;
10135
10136 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10137 if (!hdr) {
10138 nlmsg_free(msg);
10139 return;
10140 }
10141
10142 /* Userspace can always count this one always being set */
9360ffd1
DM		 10143 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10144 goto nla_put_failure;
10145
10146 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10147 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10148 NL80211_REGDOM_TYPE_WORLD))
10149 goto nla_put_failure;
10150 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10151 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10152 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10153 goto nla_put_failure;
10154 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10155 request->intersect) {
10156 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10157 NL80211_REGDOM_TYPE_INTERSECTION))
10158 goto nla_put_failure;
10159 } else {
10160 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10161 NL80211_REGDOM_TYPE_COUNTRY) ||
10162 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10163 request->alpha2))
10164 goto nla_put_failure;
10165 }
10166
f4173766 10167 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10168 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10169 goto nla_put_failure;
73d54c9e 10170
3b7b72ee 10171 genlmsg_end(msg, hdr);
73d54c9e 10172
bc43b28c 10173 rcu_read_lock();
68eb5503 10174 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10175 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10176 rcu_read_unlock();
73d54c9e
LR		 10177
10178 return;
10179
10180nla_put_failure:
10181 genlmsg_cancel(msg, hdr);
10182 nlmsg_free(msg);
10183}
10184
6039f6d2
JM		 10185static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10186 struct net_device *netdev,
10187 const u8 *buf, size_t len,
e6d6e342 10188 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10189{
10190 struct sk_buff *msg;
10191 void *hdr;
10192
e6d6e342 10193 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10194 if (!msg)
10195 return;
10196
10197 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10198 if (!hdr) {
10199 nlmsg_free(msg);
10200 return;
10201 }
10202
9360ffd1
DM		 10203 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10204 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10205 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10206 goto nla_put_failure;
6039f6d2 10207
3b7b72ee 10208 genlmsg_end(msg, hdr);
6039f6d2 10209
68eb5503 10210 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10211 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10212 return;
10213
10214 nla_put_failure:
10215 genlmsg_cancel(msg, hdr);
10216 nlmsg_free(msg);
10217}
10218
10219void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10220 struct net_device *netdev, const u8 *buf,
10221 size_t len, gfp_t gfp)
6039f6d2
JM		 10222{
10223 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10224 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10225}
10226
10227void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10228 struct net_device *netdev, const u8 *buf,
e6d6e342 10229 size_t len, gfp_t gfp)
6039f6d2 10230{
e6d6e342
JB		 10231 nl80211_send_mlme_event(rdev, netdev, buf, len,
10232 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10233}
10234
53b46b84 10235void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10236 struct net_device *netdev, const u8 *buf,
10237 size_t len, gfp_t gfp)
6039f6d2
JM		 10238{
10239 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10240 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10241}
10242
53b46b84
JM		 10243void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10244 struct net_device *netdev, const u8 *buf,
e6d6e342 10245 size_t len, gfp_t gfp)
6039f6d2
JM		 10246{
10247 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10248 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10249}
10250
6ff57cf8
JB		 10251void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10252 size_t len)
cf4e594e 10253{
947add36
JB		 10254 struct wireless_dev *wdev = dev->ieee80211_ptr;
10255 struct wiphy *wiphy = wdev->wiphy;
10256 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6ff57cf8
JB		 10257 const struct ieee80211_mgmt *mgmt = (void *)buf;
10258 u32 cmd;
947add36 10259
6ff57cf8
JB		 10260 if (WARN_ON(len < 2))
10261 return;
cf4e594e 10262
6ff57cf8
JB		 10263 if (ieee80211_is_deauth(mgmt->frame_control))
10264 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10265 else
10266 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10267
6ff57cf8
JB		 10268 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10269 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10270}
6ff57cf8 10271EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10272
1b06bb40
LR		 10273static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10274 struct net_device *netdev, int cmd,
e6d6e342 10275 const u8 *addr, gfp_t gfp)
1965c853
JM		 10276{
10277 struct sk_buff *msg;
10278 void *hdr;
10279
e6d6e342 10280 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10281 if (!msg)
10282 return;
10283
10284 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10285 if (!hdr) {
10286 nlmsg_free(msg);
10287 return;
10288 }
10289
9360ffd1
DM		 10290 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10291 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10292 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10293 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10294 goto nla_put_failure;
1965c853 10295
3b7b72ee 10296 genlmsg_end(msg, hdr);
1965c853 10297
68eb5503 10298 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10299 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10300 return;
10301
10302 nla_put_failure:
10303 genlmsg_cancel(msg, hdr);
10304 nlmsg_free(msg);
10305}
10306
10307void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10308 struct net_device *netdev, const u8 *addr,
10309 gfp_t gfp)
1965c853
JM		 10310{
10311 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10312 addr, gfp);
1965c853
JM		 10313}
10314
10315void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10316 struct net_device *netdev, const u8 *addr,
10317 gfp_t gfp)
1965c853 10318{
e6d6e342
JB		 10319 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10320 addr, gfp);
1965c853
JM		 10321}
10322
b23aa676
SO		 10323void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10324 struct net_device *netdev, const u8 *bssid,
10325 const u8 *req_ie, size_t req_ie_len,
10326 const u8 *resp_ie, size_t resp_ie_len,
10327 u16 status, gfp_t gfp)
10328{
10329 struct sk_buff *msg;
10330 void *hdr;
10331
58050fce 10332 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10333 if (!msg)
10334 return;
10335
10336 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10337 if (!hdr) {
10338 nlmsg_free(msg);
10339 return;
10340 }
10341
9360ffd1
DM		 10342 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10343 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10344 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10345 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10346 (req_ie &&
10347 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10348 (resp_ie &&
10349 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10350 goto nla_put_failure;
b23aa676 10351
3b7b72ee 10352 genlmsg_end(msg, hdr);
b23aa676 10353
68eb5503 10354 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10355 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10356 return;
10357
10358 nla_put_failure:
10359 genlmsg_cancel(msg, hdr);
10360 nlmsg_free(msg);
10361
10362}
10363
10364void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10365 struct net_device *netdev, const u8 *bssid,
10366 const u8 *req_ie, size_t req_ie_len,
10367 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10368{
10369 struct sk_buff *msg;
10370 void *hdr;
10371
58050fce 10372 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10373 if (!msg)
10374 return;
10375
10376 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10377 if (!hdr) {
10378 nlmsg_free(msg);
10379 return;
10380 }
10381
9360ffd1
DM		 10382 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10383 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10384 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10385 (req_ie &&
10386 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10387 (resp_ie &&
10388 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10389 goto nla_put_failure;
b23aa676 10390
3b7b72ee 10391 genlmsg_end(msg, hdr);
b23aa676 10392
68eb5503 10393 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10394 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10395 return;
10396
10397 nla_put_failure:
10398 genlmsg_cancel(msg, hdr);
10399 nlmsg_free(msg);
10400
10401}
10402
10403void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10404 struct net_device *netdev, u16 reason,
667503dd 10405 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10406{
10407 struct sk_buff *msg;
10408 void *hdr;
10409
58050fce 10410 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10411 if (!msg)
10412 return;
10413
10414 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10415 if (!hdr) {
10416 nlmsg_free(msg);
10417 return;
10418 }
10419
9360ffd1
DM		 10420 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10421 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10422 (from_ap && reason &&
10423 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10424 (from_ap &&
10425 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10426 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10427 goto nla_put_failure;
b23aa676 10428
3b7b72ee 10429 genlmsg_end(msg, hdr);
b23aa676 10430
68eb5503 10431 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10432 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10433 return;
10434
10435 nla_put_failure:
10436 genlmsg_cancel(msg, hdr);
10437 nlmsg_free(msg);
10438
10439}
10440
04a773ad
JB		 10441void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10442 struct net_device *netdev, const u8 *bssid,
10443 gfp_t gfp)
10444{
10445 struct sk_buff *msg;
10446 void *hdr;
10447
fd2120ca 10448 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10449 if (!msg)
10450 return;
10451
10452 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10453 if (!hdr) {
10454 nlmsg_free(msg);
10455 return;
10456 }
10457
9360ffd1
DM		 10458 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10459 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10460 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10461 goto nla_put_failure;
04a773ad 10462
3b7b72ee 10463 genlmsg_end(msg, hdr);
04a773ad 10464
68eb5503 10465 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10466 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10467 return;
10468
10469 nla_put_failure:
10470 genlmsg_cancel(msg, hdr);
10471 nlmsg_free(msg);
10472}
10473
947add36
JB		 10474void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10475 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10476{
947add36
JB		 10477 struct wireless_dev *wdev = dev->ieee80211_ptr;
10478 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 10479 struct sk_buff *msg;
10480 void *hdr;
10481
947add36
JB		 10482 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10483 return;
10484
10485 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10486
c93b5e71
JC		 10487 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10488 if (!msg)
10489 return;
10490
10491 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10492 if (!hdr) {
10493 nlmsg_free(msg);
10494 return;
10495 }
10496
9360ffd1 10497 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10498 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10499 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10500 (ie_len && ie &&
10501 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10502 goto nla_put_failure;
c93b5e71 10503
3b7b72ee 10504 genlmsg_end(msg, hdr);
c93b5e71 10505
68eb5503 10506 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10507 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10508 return;
10509
10510 nla_put_failure:
10511 genlmsg_cancel(msg, hdr);
10512 nlmsg_free(msg);
10513}
947add36 10514EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10515
a3b8b056
JM		 10516void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10517 struct net_device *netdev, const u8 *addr,
10518 enum nl80211_key_type key_type, int key_id,
e6d6e342 10519 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10520{
10521 struct sk_buff *msg;
10522 void *hdr;
10523
e6d6e342 10524 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10525 if (!msg)
10526 return;
10527
10528 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10529 if (!hdr) {
10530 nlmsg_free(msg);
10531 return;
10532 }
10533
9360ffd1
DM		 10534 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10535 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10536 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10537 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10538 (key_id != -1 &&
10539 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10540 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10541 goto nla_put_failure;
a3b8b056 10542
3b7b72ee 10543 genlmsg_end(msg, hdr);
a3b8b056 10544
68eb5503 10545 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10546 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10547 return;
10548
10549 nla_put_failure:
10550 genlmsg_cancel(msg, hdr);
10551 nlmsg_free(msg);
10552}
10553
6bad8766
LR		 10554void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10555 struct ieee80211_channel *channel_before,
10556 struct ieee80211_channel *channel_after)
10557{
10558 struct sk_buff *msg;
10559 void *hdr;
10560 struct nlattr *nl_freq;
10561
fd2120ca 10562 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10563 if (!msg)
10564 return;
10565
10566 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10567 if (!hdr) {
10568 nlmsg_free(msg);
10569 return;
10570 }
10571
10572 /*
10573 * Since we are applying the beacon hint to a wiphy we know its
10574 * wiphy_idx is valid
10575 */
9360ffd1
DM		 10576 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10577 goto nla_put_failure;
6bad8766
LR		 10578
10579 /* Before */
10580 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10581 if (!nl_freq)
10582 goto nla_put_failure;
cdc89b97 10583 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10584 goto nla_put_failure;
10585 nla_nest_end(msg, nl_freq);
10586
10587 /* After */
10588 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10589 if (!nl_freq)
10590 goto nla_put_failure;
cdc89b97 10591 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10592 goto nla_put_failure;
10593 nla_nest_end(msg, nl_freq);
10594
3b7b72ee 10595 genlmsg_end(msg, hdr);
6bad8766 10596
463d0183 10597 rcu_read_lock();
68eb5503 10598 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10599 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10600 rcu_read_unlock();
6bad8766
LR		 10601
10602 return;
10603
10604nla_put_failure:
10605 genlmsg_cancel(msg, hdr);
10606 nlmsg_free(msg);
10607}
10608
9588bbd5
JM		 10609static void nl80211_send_remain_on_chan_event(
10610 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10611 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10612 struct ieee80211_channel *chan,
9588bbd5
JM		 10613 unsigned int duration, gfp_t gfp)
10614{
10615 struct sk_buff *msg;
10616 void *hdr;
10617
10618 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10619 if (!msg)
10620 return;
10621
10622 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10623 if (!hdr) {
10624 nlmsg_free(msg);
10625 return;
10626 }
10627
9360ffd1 10628 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10629 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10630 wdev->netdev->ifindex)) ||
00f53350 10631 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10632 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10633 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10634 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10635 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10636 goto nla_put_failure;
9588bbd5 10637
9360ffd1
DM		 10638 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10639 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10640 goto nla_put_failure;
9588bbd5 10641
3b7b72ee 10642 genlmsg_end(msg, hdr);
9588bbd5 10643
68eb5503 10644 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10645 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10646 return;
10647
10648 nla_put_failure:
10649 genlmsg_cancel(msg, hdr);
10650 nlmsg_free(msg);
10651}
10652
947add36
JB		 10653void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10654 struct ieee80211_channel *chan,
10655 unsigned int duration, gfp_t gfp)
9588bbd5 10656{
947add36
JB		 10657 struct wiphy *wiphy = wdev->wiphy;
10658 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10659
10660 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10661 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10662 rdev, wdev, cookie, chan,
42d97a59 10663 duration, gfp);
9588bbd5 10664}
947add36 10665EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10666
947add36
JB		 10667void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10668 struct ieee80211_channel *chan,
10669 gfp_t gfp)
9588bbd5 10670{
947add36
JB		 10671 struct wiphy *wiphy = wdev->wiphy;
10672 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10673
10674 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10675 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10676 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10677}
947add36 10678EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10679
947add36
JB		 10680void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10681 struct station_info *sinfo, gfp_t gfp)
98b62183 10682{
947add36
JB		 10683 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10684 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 10685 struct sk_buff *msg;
10686
947add36
JB		 10687 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10688
58050fce 10689 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10690 if (!msg)
10691 return;
10692
66266b3a
JL		 10693 if (nl80211_send_station(msg, 0, 0, 0,
10694 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10695 nlmsg_free(msg);
10696 return;
10697 }
10698
68eb5503 10699 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10700 NL80211_MCGRP_MLME, gfp);
98b62183 10701}
947add36 10702EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10703
947add36 10704void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10705{
947add36
JB		 10706 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10707 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 10708 struct sk_buff *msg;
10709 void *hdr;
10710
947add36
JB		 10711 trace_cfg80211_del_sta(dev, mac_addr);
10712
58050fce 10713 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10714 if (!msg)
10715 return;
10716
10717 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10718 if (!hdr) {
10719 nlmsg_free(msg);
10720 return;
10721 }
10722
9360ffd1
DM		 10723 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10724 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10725 goto nla_put_failure;
ec15e68b 10726
3b7b72ee 10727 genlmsg_end(msg, hdr);
ec15e68b 10728
68eb5503 10729 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10730 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10731 return;
10732
10733 nla_put_failure:
10734 genlmsg_cancel(msg, hdr);
10735 nlmsg_free(msg);
10736}
947add36 10737EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10738
947add36
JB		 10739void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10740 enum nl80211_connect_failed_reason reason,
10741 gfp_t gfp)
ed44a951 10742{
947add36
JB		 10743 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10744 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 10745 struct sk_buff *msg;
10746 void *hdr;
10747
10748 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10749 if (!msg)
10750 return;
10751
10752 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10753 if (!hdr) {
10754 nlmsg_free(msg);
10755 return;
10756 }
10757
10758 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10759 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10760 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10761 goto nla_put_failure;
10762
10763 genlmsg_end(msg, hdr);
10764
68eb5503 10765 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10766 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10767 return;
10768
10769 nla_put_failure:
10770 genlmsg_cancel(msg, hdr);
10771 nlmsg_free(msg);
10772}
947add36 10773EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10774
b92ab5d8
JB		 10775static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10776 const u8 *addr, gfp_t gfp)
28946da7
JB		 10777{
10778 struct wireless_dev *wdev = dev->ieee80211_ptr;
10779 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10780 struct sk_buff *msg;
10781 void *hdr;
15e47304 10782 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10783
15e47304 10784 if (!nlportid)
28946da7
JB		 10785 return false;
10786
10787 msg = nlmsg_new(100, gfp);
10788 if (!msg)
10789 return true;
10790
b92ab5d8 10791 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10792 if (!hdr) {
10793 nlmsg_free(msg);
10794 return true;
10795 }
10796
9360ffd1
DM		 10797 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10798 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10799 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10800 goto nla_put_failure;
28946da7 10801
9c90a9f6 10802 genlmsg_end(msg, hdr);
15e47304 10803 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10804 return true;
10805
10806 nla_put_failure:
10807 genlmsg_cancel(msg, hdr);
10808 nlmsg_free(msg);
10809 return true;
10810}
10811
947add36
JB		 10812bool cfg80211_rx_spurious_frame(struct net_device *dev,
10813 const u8 *addr, gfp_t gfp)
b92ab5d8 10814{
947add36
JB		 10815 struct wireless_dev *wdev = dev->ieee80211_ptr;
10816 bool ret;
10817
10818 trace_cfg80211_rx_spurious_frame(dev, addr);
10819
10820 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10821 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10822 trace_cfg80211_return_bool(false);
10823 return false;
10824 }
10825 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10826 addr, gfp);
10827 trace_cfg80211_return_bool(ret);
10828 return ret;
b92ab5d8 10829}
947add36 10830EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10831
947add36
JB		 10832bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10833 const u8 *addr, gfp_t gfp)
b92ab5d8 10834{
947add36
JB		 10835 struct wireless_dev *wdev = dev->ieee80211_ptr;
10836 bool ret;
10837
10838 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10839
10840 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10841 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10842 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10843 trace_cfg80211_return_bool(false);
10844 return false;
10845 }
10846 ret = __nl80211_unexpected_frame(dev,
10847 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10848 addr, gfp);
10849 trace_cfg80211_return_bool(ret);
10850 return ret;
b92ab5d8 10851}
947add36 10852EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 10853
2e161f78 10854int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 10855 struct wireless_dev *wdev, u32 nlportid,
804483e9 10856 int freq, int sig_dbm,
19504cf5 10857 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 10858{
71bbc994 10859 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10860 struct sk_buff *msg;
10861 void *hdr;
026331c4
JM		 10862
10863 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10864 if (!msg)
10865 return -ENOMEM;
10866
2e161f78 10867 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 10868 if (!hdr) {
10869 nlmsg_free(msg);
10870 return -ENOMEM;
10871 }
10872
9360ffd1 10873 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10874 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10875 netdev->ifindex)) ||
a838490b 10876 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10877 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10878 (sig_dbm &&
10879 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 10880 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10881 (flags &&
10882 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 10883 goto nla_put_failure;
026331c4 10884
3b7b72ee 10885 genlmsg_end(msg, hdr);
026331c4 10886
15e47304 10887 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 10888
10889 nla_put_failure:
10890 genlmsg_cancel(msg, hdr);
10891 nlmsg_free(msg);
10892 return -ENOBUFS;
10893}
10894
947add36
JB		 10895void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10896 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 10897{
947add36
JB		 10898 struct wiphy *wiphy = wdev->wiphy;
10899 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 10900 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10901 struct sk_buff *msg;
10902 void *hdr;
10903
947add36
JB		 10904 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10905
026331c4
JM		 10906 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10907 if (!msg)
10908 return;
10909
2e161f78 10910 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 10911 if (!hdr) {
10912 nlmsg_free(msg);
10913 return;
10914 }
10915
9360ffd1 10916 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10917 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10918 netdev->ifindex)) ||
a838490b 10919 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10920 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10921 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10922 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10923 goto nla_put_failure;
026331c4 10924
3b7b72ee 10925 genlmsg_end(msg, hdr);
026331c4 10926
68eb5503 10927 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10928 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 10929 return;
10930
10931 nla_put_failure:
10932 genlmsg_cancel(msg, hdr);
10933 nlmsg_free(msg);
10934}
947add36 10935EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 10936
947add36
JB		 10937void cfg80211_cqm_rssi_notify(struct net_device *dev,
10938 enum nl80211_cqm_rssi_threshold_event rssi_event,
10939 gfp_t gfp)
d6dc1a38 10940{
947add36
JB		 10941 struct wireless_dev *wdev = dev->ieee80211_ptr;
10942 struct wiphy *wiphy = wdev->wiphy;
10943 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 10944 struct sk_buff *msg;
10945 struct nlattr *pinfoattr;
10946 void *hdr;
10947
947add36
JB		 10948 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10949
58050fce 10950 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 10951 if (!msg)
10952 return;
10953
10954 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10955 if (!hdr) {
10956 nlmsg_free(msg);
10957 return;
10958 }
10959
9360ffd1 10960 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10961 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10962 goto nla_put_failure;
d6dc1a38
JO		 10963
10964 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10965 if (!pinfoattr)
10966 goto nla_put_failure;
10967
9360ffd1
DM		 10968 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10969 rssi_event))
10970 goto nla_put_failure;
d6dc1a38
JO		 10971
10972 nla_nest_end(msg, pinfoattr);
10973
3b7b72ee 10974 genlmsg_end(msg, hdr);
d6dc1a38 10975
68eb5503 10976 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10977 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 10978 return;
10979
10980 nla_put_failure:
10981 genlmsg_cancel(msg, hdr);
10982 nlmsg_free(msg);
10983}
947add36 10984EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10985
947add36
JB		 10986static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10987 struct net_device *netdev, const u8 *bssid,
10988 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10989{
10990 struct sk_buff *msg;
10991 struct nlattr *rekey_attr;
10992 void *hdr;
10993
58050fce 10994 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10995 if (!msg)
10996 return;
10997
10998 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10999 if (!hdr) {
11000 nlmsg_free(msg);
11001 return;
11002 }
11003
9360ffd1
DM		 11004 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11005 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11006 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11007 goto nla_put_failure;
e5497d76
JB		 11008
11009 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11010 if (!rekey_attr)
11011 goto nla_put_failure;
11012
9360ffd1
DM		 11013 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11014 NL80211_REPLAY_CTR_LEN, replay_ctr))
11015 goto nla_put_failure;
e5497d76
JB		 11016
11017 nla_nest_end(msg, rekey_attr);
11018
3b7b72ee 11019 genlmsg_end(msg, hdr);
e5497d76 11020
68eb5503 11021 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11022 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11023 return;
11024
11025 nla_put_failure:
11026 genlmsg_cancel(msg, hdr);
11027 nlmsg_free(msg);
11028}
11029
947add36
JB		 11030void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11031 const u8 *replay_ctr, gfp_t gfp)
11032{
11033 struct wireless_dev *wdev = dev->ieee80211_ptr;
11034 struct wiphy *wiphy = wdev->wiphy;
11035 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11036
11037 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11038 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11039}
11040EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11041
11042static void
11043nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11044 struct net_device *netdev, int index,
11045 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11046{
11047 struct sk_buff *msg;
11048 struct nlattr *attr;
11049 void *hdr;
11050
58050fce 11051 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11052 if (!msg)
11053 return;
11054
11055 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11056 if (!hdr) {
11057 nlmsg_free(msg);
11058 return;
11059 }
11060
9360ffd1
DM		 11061 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11062 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11063 goto nla_put_failure;
c9df56b4
JM		 11064
11065 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11066 if (!attr)
11067 goto nla_put_failure;
11068
9360ffd1
DM		 11069 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11070 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11071 (preauth &&
11072 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11073 goto nla_put_failure;
c9df56b4
JM		 11074
11075 nla_nest_end(msg, attr);
11076
3b7b72ee 11077 genlmsg_end(msg, hdr);
c9df56b4 11078
68eb5503 11079 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11080 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11081 return;
11082
11083 nla_put_failure:
11084 genlmsg_cancel(msg, hdr);
11085 nlmsg_free(msg);
11086}
11087
947add36
JB		 11088void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11089 const u8 *bssid, bool preauth, gfp_t gfp)
11090{
11091 struct wireless_dev *wdev = dev->ieee80211_ptr;
11092 struct wiphy *wiphy = wdev->wiphy;
11093 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11094
11095 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11096 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11097}
11098EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11099
11100static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11101 struct net_device *netdev,
11102 struct cfg80211_chan_def *chandef,
11103 gfp_t gfp)
5314526b
TP		 11104{
11105 struct sk_buff *msg;
11106 void *hdr;
11107
58050fce 11108 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11109 if (!msg)
11110 return;
11111
11112 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11113 if (!hdr) {
11114 nlmsg_free(msg);
11115 return;
11116 }
11117
683b6d3b
JB		 11118 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11119 goto nla_put_failure;
11120
11121 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11122 goto nla_put_failure;
5314526b
TP		 11123
11124 genlmsg_end(msg, hdr);
11125
68eb5503 11126 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11127 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11128 return;
11129
11130 nla_put_failure:
11131 genlmsg_cancel(msg, hdr);
11132 nlmsg_free(msg);
11133}
11134
947add36
JB		 11135void cfg80211_ch_switch_notify(struct net_device *dev,
11136 struct cfg80211_chan_def *chandef)
84f10708 11137{
947add36
JB		 11138 struct wireless_dev *wdev = dev->ieee80211_ptr;
11139 struct wiphy *wiphy = wdev->wiphy;
11140 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11141
e487eaeb 11142 ASSERT_WDEV_LOCK(wdev);
947add36 11143
e487eaeb 11144 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11145
11146 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11147 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11148 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11149 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11150 return;
947add36
JB		 11151
11152 wdev->channel = chandef->chan;
11153 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11154}
11155EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11156
11157void cfg80211_cqm_txe_notify(struct net_device *dev,
11158 const u8 *peer, u32 num_packets,
11159 u32 rate, u32 intvl, gfp_t gfp)
11160{
11161 struct wireless_dev *wdev = dev->ieee80211_ptr;
11162 struct wiphy *wiphy = wdev->wiphy;
11163 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 11164 struct sk_buff *msg;
11165 struct nlattr *pinfoattr;
11166 void *hdr;
11167
11168 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11169 if (!msg)
11170 return;
11171
11172 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11173 if (!hdr) {
11174 nlmsg_free(msg);
11175 return;
11176 }
11177
11178 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11179 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11180 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11181 goto nla_put_failure;
11182
11183 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11184 if (!pinfoattr)
11185 goto nla_put_failure;
11186
11187 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11188 goto nla_put_failure;
11189
11190 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11191 goto nla_put_failure;
11192
11193 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11194 goto nla_put_failure;
11195
11196 nla_nest_end(msg, pinfoattr);
11197
11198 genlmsg_end(msg, hdr);
11199
68eb5503 11200 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11201 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11202 return;
11203
11204 nla_put_failure:
11205 genlmsg_cancel(msg, hdr);
11206 nlmsg_free(msg);
11207}
947add36 11208EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11209
04f39047
SW		 11210void
11211nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11212 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11213 enum nl80211_radar_event event,
11214 struct net_device *netdev, gfp_t gfp)
11215{
11216 struct sk_buff *msg;
11217 void *hdr;
11218
11219 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11220 if (!msg)
11221 return;
11222
11223 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11224 if (!hdr) {
11225 nlmsg_free(msg);
11226 return;
11227 }
11228
11229 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11230 goto nla_put_failure;
11231
11232 /* NOP and radar events don't need a netdev parameter */
11233 if (netdev) {
11234 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11235
11236 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11237 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11238 goto nla_put_failure;
11239 }
11240
11241 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11242 goto nla_put_failure;
11243
11244 if (nl80211_send_chandef(msg, chandef))
11245 goto nla_put_failure;
11246
9c90a9f6 11247 genlmsg_end(msg, hdr);
04f39047 11248
68eb5503 11249 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11250 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11251 return;
11252
11253 nla_put_failure:
11254 genlmsg_cancel(msg, hdr);
11255 nlmsg_free(msg);
11256}
11257
947add36
JB		 11258void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11259 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11260{
947add36
JB		 11261 struct wireless_dev *wdev = dev->ieee80211_ptr;
11262 struct wiphy *wiphy = wdev->wiphy;
11263 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 11264 struct sk_buff *msg;
11265 struct nlattr *pinfoattr;
11266 void *hdr;
11267
947add36
JB		 11268 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11269
58050fce 11270 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11271 if (!msg)
11272 return;
11273
11274 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11275 if (!hdr) {
11276 nlmsg_free(msg);
11277 return;
11278 }
11279
9360ffd1 11280 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11281 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11282 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11283 goto nla_put_failure;
c063dbf5
JB		 11284
11285 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11286 if (!pinfoattr)
11287 goto nla_put_failure;
11288
9360ffd1
DM		 11289 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11290 goto nla_put_failure;
c063dbf5
JB		 11291
11292 nla_nest_end(msg, pinfoattr);
11293
3b7b72ee 11294 genlmsg_end(msg, hdr);
c063dbf5 11295
68eb5503 11296 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11297 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11298 return;
11299
11300 nla_put_failure:
11301 genlmsg_cancel(msg, hdr);
11302 nlmsg_free(msg);
11303}
947add36 11304EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11305
7f6cf311
JB		 11306void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11307 u64 cookie, bool acked, gfp_t gfp)
11308{
11309 struct wireless_dev *wdev = dev->ieee80211_ptr;
11310 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11311 struct sk_buff *msg;
11312 void *hdr;
7f6cf311 11313
4ee3e063
BL		 11314 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11315
58050fce 11316 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11317
7f6cf311
JB		 11318 if (!msg)
11319 return;
11320
11321 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11322 if (!hdr) {
11323 nlmsg_free(msg);
11324 return;
11325 }
11326
9360ffd1
DM		 11327 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11328 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11329 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11330 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11331 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11332 goto nla_put_failure;
7f6cf311 11333
9c90a9f6 11334 genlmsg_end(msg, hdr);
7f6cf311 11335
68eb5503 11336 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11337 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11338 return;
11339
11340 nla_put_failure:
11341 genlmsg_cancel(msg, hdr);
11342 nlmsg_free(msg);
11343}
11344EXPORT_SYMBOL(cfg80211_probe_status);
11345
5e760230
JB		 11346void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11347 const u8 *frame, size_t len,
37c73b5f 11348 int freq, int sig_dbm)
5e760230
JB		 11349{
11350 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11351 struct sk_buff *msg;
11352 void *hdr;
37c73b5f 11353 struct cfg80211_beacon_registration *reg;
5e760230 11354
4ee3e063
BL		 11355 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11356
37c73b5f
BG		 11357 spin_lock_bh(&rdev->beacon_registrations_lock);
11358 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11359 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11360 if (!msg) {
11361 spin_unlock_bh(&rdev->beacon_registrations_lock);
11362 return;
11363 }
5e760230 11364
37c73b5f
BG		 11365 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11366 if (!hdr)
11367 goto nla_put_failure;
5e760230 11368
37c73b5f
BG		 11369 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11370 (freq &&
11371 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11372 (sig_dbm &&
11373 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11374 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11375 goto nla_put_failure;
5e760230 11376
37c73b5f 11377 genlmsg_end(msg, hdr);
5e760230 11378
37c73b5f
BG		 11379 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11380 }
11381 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11382 return;
11383
11384 nla_put_failure:
37c73b5f
BG		 11385 spin_unlock_bh(&rdev->beacon_registrations_lock);
11386 if (hdr)
11387 genlmsg_cancel(msg, hdr);
5e760230
JB		 11388 nlmsg_free(msg);
11389}
11390EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11391
cd8f7cb4
JB		 11392#ifdef CONFIG_PM
11393void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11394 struct cfg80211_wowlan_wakeup *wakeup,
11395 gfp_t gfp)
11396{
11397 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11398 struct sk_buff *msg;
11399 void *hdr;
9c90a9f6 11400 int size = 200;
cd8f7cb4
JB		 11401
11402 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11403
11404 if (wakeup)
11405 size += wakeup->packet_present_len;
11406
11407 msg = nlmsg_new(size, gfp);
11408 if (!msg)
11409 return;
11410
11411 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11412 if (!hdr)
11413 goto free_msg;
11414
11415 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11416 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11417 goto free_msg;
11418
11419 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11420 wdev->netdev->ifindex))
11421 goto free_msg;
11422
11423 if (wakeup) {
11424 struct nlattr *reasons;
11425
11426 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11427 if (!reasons)
11428 goto free_msg;
cd8f7cb4
JB		 11429
11430 if (wakeup->disconnect &&
11431 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11432 goto free_msg;
11433 if (wakeup->magic_pkt &&
11434 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11435 goto free_msg;
11436 if (wakeup->gtk_rekey_failure &&
11437 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11438 goto free_msg;
11439 if (wakeup->eap_identity_req &&
11440 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11441 goto free_msg;
11442 if (wakeup->four_way_handshake &&
11443 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11444 goto free_msg;
11445 if (wakeup->rfkill_release &&
11446 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11447 goto free_msg;
11448
11449 if (wakeup->pattern_idx >= 0 &&
11450 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11451 wakeup->pattern_idx))
11452 goto free_msg;
11453
ae917c9f
JB		 11454 if (wakeup->tcp_match &&
11455 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11456 goto free_msg;
2a0e047e 11457
ae917c9f
JB		 11458 if (wakeup->tcp_connlost &&
11459 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11460 goto free_msg;
2a0e047e 11461
ae917c9f
JB		 11462 if (wakeup->tcp_nomoretokens &&
11463 nla_put_flag(msg,
11464 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11465 goto free_msg;
2a0e047e 11466
cd8f7cb4
JB		 11467 if (wakeup->packet) {
11468 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11469 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11470
11471 if (!wakeup->packet_80211) {
11472 pkt_attr =
11473 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11474 len_attr =
11475 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11476 }
11477
11478 if (wakeup->packet_len &&
11479 nla_put_u32(msg, len_attr, wakeup->packet_len))
11480 goto free_msg;
11481
11482 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11483 wakeup->packet))
11484 goto free_msg;
11485 }
11486
11487 nla_nest_end(msg, reasons);
11488 }
11489
9c90a9f6 11490 genlmsg_end(msg, hdr);
cd8f7cb4 11491
68eb5503 11492 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11493 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11494 return;
11495
11496 free_msg:
11497 nlmsg_free(msg);
11498}
11499EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11500#endif
11501
3475b094
JM		 11502void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11503 enum nl80211_tdls_operation oper,
11504 u16 reason_code, gfp_t gfp)
11505{
11506 struct wireless_dev *wdev = dev->ieee80211_ptr;
11507 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11508 struct sk_buff *msg;
11509 void *hdr;
3475b094
JM		 11510
11511 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11512 reason_code);
11513
11514 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11515 if (!msg)
11516 return;
11517
11518 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11519 if (!hdr) {
11520 nlmsg_free(msg);
11521 return;
11522 }
11523
11524 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11525 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11526 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11527 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11528 (reason_code > 0 &&
11529 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11530 goto nla_put_failure;
11531
9c90a9f6 11532 genlmsg_end(msg, hdr);
3475b094 11533
68eb5503 11534 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11535 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11536 return;
11537
11538 nla_put_failure:
11539 genlmsg_cancel(msg, hdr);
11540 nlmsg_free(msg);
11541}
11542EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11543
026331c4
JM		 11544static int nl80211_netlink_notify(struct notifier_block * nb,
11545 unsigned long state,
11546 void *_notify)
11547{
11548 struct netlink_notify *notify = _notify;
11549 struct cfg80211_registered_device *rdev;
11550 struct wireless_dev *wdev;
37c73b5f 11551 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11552
11553 if (state != NETLINK_URELEASE)
11554 return NOTIFY_DONE;
11555
11556 rcu_read_lock();
11557
5e760230 11558 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 11559 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 11560 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 11561
11562 spin_lock_bh(&rdev->beacon_registrations_lock);
11563 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11564 list) {
11565 if (reg->nlportid == notify->portid) {
11566 list_del(&reg->list);
11567 kfree(reg);
11568 break;
11569 }
11570 }
11571 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 11572 }
026331c4
JM		 11573
11574 rcu_read_unlock();
11575
11576 return NOTIFY_DONE;
11577}
11578
11579static struct notifier_block nl80211_netlink_notifier = {
11580 .notifier_call = nl80211_netlink_notify,
11581};
11582
355199e0
JM		 11583void cfg80211_ft_event(struct net_device *netdev,
11584 struct cfg80211_ft_event_params *ft_event)
11585{
11586 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11587 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11588 struct sk_buff *msg;
11589 void *hdr;
355199e0
JM		 11590
11591 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11592
11593 if (!ft_event->target_ap)
11594 return;
11595
11596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11597 if (!msg)
11598 return;
11599
11600 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11601 if (!hdr)
11602 goto out;
355199e0 11603
ae917c9f
JB		 11604 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11605 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11606 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11607 goto out;
355199e0 11608
ae917c9f
JB		 11609 if (ft_event->ies &&
11610 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11611 goto out;
11612 if (ft_event->ric_ies &&
11613 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11614 ft_event->ric_ies))
11615 goto out;
355199e0 11616
9c90a9f6 11617 genlmsg_end(msg, hdr);
355199e0 11618
68eb5503 11619 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11620 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11621 return;
11622 out:
11623 nlmsg_free(msg);
355199e0
JM		 11624}
11625EXPORT_SYMBOL(cfg80211_ft_event);
11626
5de17984
AS		 11627void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11628{
11629 struct cfg80211_registered_device *rdev;
11630 struct sk_buff *msg;
11631 void *hdr;
11632 u32 nlportid;
11633
11634 rdev = wiphy_to_dev(wdev->wiphy);
11635 if (!rdev->crit_proto_nlportid)
11636 return;
11637
11638 nlportid = rdev->crit_proto_nlportid;
11639 rdev->crit_proto_nlportid = 0;
11640
11641 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11642 if (!msg)
11643 return;
11644
11645 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11646 if (!hdr)
11647 goto nla_put_failure;
11648
11649 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11650 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11651 goto nla_put_failure;
11652
11653 genlmsg_end(msg, hdr);
11654
11655 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11656 return;
11657
11658 nla_put_failure:
11659 if (hdr)
11660 genlmsg_cancel(msg, hdr);
11661 nlmsg_free(msg);
11662
11663}
11664EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11665
55682965
JB		 11666/* initialisation/exit functions */
11667
11668int nl80211_init(void)
11669{
0d63cbb5 11670 int err;
55682965 11671
2a94fe48
JB		 11672 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11673 nl80211_mcgrps);
55682965
JB		 11674 if (err)
11675 return err;
11676
026331c4
JM		 11677 err = netlink_register_notifier(&nl80211_netlink_notifier);
11678 if (err)
11679 goto err_out;
11680
55682965
JB		 11681 return 0;
11682 err_out:
11683 genl_unregister_family(&nl80211_fam);
11684 return err;
11685}
11686
11687void nl80211_exit(void)
11688{
026331c4 11689 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11690 genl_unregister_family(&nl80211_fam);
11691}
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