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mac80211: Update CSA counters in mgmt frames
[mirror_ubuntu-eoan-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)
f26cbf40
ZG		 171 tmp = wiphy_to_rdev(
172 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 173 else
174 tmp = NULL;
175
7fee4778
JB		 176 /* not wireless device -- return error */
177 if (!tmp)
178 return ERR_PTR(-EINVAL);
179
180 /* mismatch -- return error */
181 if (rdev && tmp != rdev)
182 return ERR_PTR(-EINVAL);
183
184 rdev = tmp;
a9455408 185 }
a9455408 186 }
a9455408 187
4f7eff10
JB		 188 if (!rdev)
189 return ERR_PTR(-ENODEV);
a9455408 190
4f7eff10
JB		 191 if (netns != wiphy_net(&rdev->wiphy))
192 return ERR_PTR(-ENODEV);
193
194 return rdev;
a9455408
JB		 195}
196
197/*
198 * This function returns a pointer to the driver
199 * that the genl_info item that is passed refers to.
a9455408
JB		 200 *
201 * The result of this can be a PTR_ERR and hence must
202 * be checked with IS_ERR() for errors.
203 */
204static struct cfg80211_registered_device *
4f7eff10 205cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 206{
5fe231e8 207 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 208}
209
55682965 210/* policy for the attributes */
b54452b0 211static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 212 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
213 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 214 .len = 20-1 },
31888487 215 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 216
72bdcf34 217 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 218 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 219 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
220 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
222
b9a5f8ca
JM		 223 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
224 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
226 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 227 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 228
229 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
230 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
231 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 232
e007b857
EP		 233 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
234 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 235
b9454e83 236 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 237 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
238 .len = WLAN_MAX_KEY_LEN },
239 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
240 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
241 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 242 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 243 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 244
245 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
246 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
247 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
248 .len = IEEE80211_MAX_DATA_LEN },
249 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 251 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
252 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
253 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
255 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 256 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 257 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 258 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 259 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 260 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 261 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 262
b2e1b302
LR		 263 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
264 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
265
9f1ba906
JM		 266 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
267 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
268 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 269 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
270 .len = NL80211_MAX_SUPP_RATES },
50b12f59 271 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 272
24bdd9f4 273 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 274 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 275
6c739419 276 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 277
278 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
279 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
280 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 281 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
282 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 283
284 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_SSID_LEN },
286 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
287 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 288 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 289 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 290 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 291 [NL80211_ATTR_STA_FLAGS2] = {
292 .len = sizeof(struct nl80211_sta_flag_update),
293 },
3f77316c 294 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 295 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
296 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 297 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
298 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
299 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 300 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 301 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 302 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
303 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 304 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
305 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 306 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 307 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
308 .len = IEEE80211_MAX_DATA_LEN },
309 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 310 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 311 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 312 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 313 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 314 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
315 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 316 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 317 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 319 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 320 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 321 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 322 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 323 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 324 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 325 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 326 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 327 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 328 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
329 .len = IEEE80211_MAX_DATA_LEN },
330 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 332 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 333 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 334 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 335 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
336 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
337 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
339 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 340 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 341 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 343 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 344 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
346 .len = NL80211_HT_CAPABILITY_LEN
347 },
1d9d9213 348 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 349 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 350 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 351 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 352 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 353 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 354 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 355 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 356 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
357 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 358 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
359 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 360 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
361 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 362 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 363 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
364 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
365 .len = NL80211_VHT_CAPABILITY_LEN,
366 },
355199e0
JM		 367 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
368 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
369 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 370 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 371 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
372 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
373 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
374 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
375 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
c01fc9ad
SD		 376 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
377 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 378 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 379 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 380 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
381 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
382 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 383 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
384 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 385 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
386 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 387 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 388 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 389 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
55682965
JB		 390};
391
e31b8213 392/* policy for the key attributes */
b54452b0 393static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 394 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 395 [NL80211_KEY_IDX] = { .type = NLA_U8 },
396 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 397 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 398 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
399 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 400 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 401 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
402};
403
404/* policy for the key default flags */
405static const struct nla_policy
406nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
407 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
408 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 409};
410
ff1b6e69
JB		 411/* policy for WoWLAN attributes */
412static const struct nla_policy
413nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
414 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
415 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
417 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 418 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
420 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
421 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 422 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
423};
424
425static const struct nla_policy
426nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
427 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
428 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
429 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
430 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
431 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
432 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
433 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
434 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
435 },
436 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
437 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
438 },
439 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
440 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
441 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 442};
443
be29b99a
AK		 444/* policy for coalesce rule attributes */
445static const struct nla_policy
446nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
447 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
448 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
449 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
450};
451
e5497d76
JB		 452/* policy for GTK rekey offload attributes */
453static const struct nla_policy
454nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
455 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
456 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
457 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
458};
459
a1f1c21c
LC		 460static const struct nla_policy
461nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 462 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 463 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 464 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 465};
466
97990a06
JB		 467static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
468 struct netlink_callback *cb,
469 struct cfg80211_registered_device **rdev,
470 struct wireless_dev **wdev)
a043897a 471{
97990a06 472 int err;
a043897a 473
97990a06 474 rtnl_lock();
a043897a 475
97990a06
JB		 476 if (!cb->args[0]) {
477 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
478 nl80211_fam.attrbuf, nl80211_fam.maxattr,
479 nl80211_policy);
480 if (err)
481 goto out_unlock;
67748893 482
97990a06
JB		 483 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
484 nl80211_fam.attrbuf);
485 if (IS_ERR(*wdev)) {
486 err = PTR_ERR(*wdev);
487 goto out_unlock;
488 }
f26cbf40 489 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 490 /* 0 is the first index - add 1 to parse only once */
491 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 492 cb->args[1] = (*wdev)->identifier;
493 } else {
c319d50b
JB		 494 /* subtract the 1 again here */
495 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 496 struct wireless_dev *tmp;
67748893 497
97990a06
JB		 498 if (!wiphy) {
499 err = -ENODEV;
500 goto out_unlock;
501 }
f26cbf40 502 *rdev = wiphy_to_rdev(wiphy);
97990a06 503 *wdev = NULL;
67748893 504
97990a06
JB		 505 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
506 if (tmp->identifier == cb->args[1]) {
507 *wdev = tmp;
508 break;
509 }
510 }
67748893 511
97990a06
JB		 512 if (!*wdev) {
513 err = -ENODEV;
514 goto out_unlock;
515 }
67748893
JB		 516 }
517
67748893 518 return 0;
97990a06 519 out_unlock:
67748893
JB		 520 rtnl_unlock();
521 return err;
522}
523
97990a06 524static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 525{
67748893
JB		 526 rtnl_unlock();
527}
528
f4a11bb0
JB		 529/* IE validation */
530static bool is_valid_ie_attr(const struct nlattr *attr)
531{
532 const u8 *pos;
533 int len;
534
535 if (!attr)
536 return true;
537
538 pos = nla_data(attr);
539 len = nla_len(attr);
540
541 while (len) {
542 u8 elemlen;
543
544 if (len < 2)
545 return false;
546 len -= 2;
547
548 elemlen = pos[1];
549 if (elemlen > len)
550 return false;
551
552 len -= elemlen;
553 pos += 2 + elemlen;
554 }
555
556 return true;
557}
558
55682965 559/* message building helper */
15e47304 560static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 561 int flags, u8 cmd)
562{
563 /* since there is no private header just add the generic one */
15e47304 564 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 565}
566
5dab3b8a 567static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 568 struct ieee80211_channel *chan,
569 bool large)
5dab3b8a 570{
ea077c1c
RL		 571 /* Some channels must be completely excluded from the
572 * list to protect old user-space tools from breaking
573 */
574 if (!large && chan->flags &
575 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
576 return 0;
577
9360ffd1
DM		 578 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
579 chan->center_freq))
580 goto nla_put_failure;
5dab3b8a 581
9360ffd1
DM		 582 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
583 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
584 goto nla_put_failure;
8fe02e16
LR		 585 if (chan->flags & IEEE80211_CHAN_NO_IR) {
586 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
587 goto nla_put_failure;
588 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
589 goto nla_put_failure;
590 }
cdc89b97
JB		 591 if (chan->flags & IEEE80211_CHAN_RADAR) {
592 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
593 goto nla_put_failure;
594 if (large) {
595 u32 time;
596
597 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
598
599 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
600 chan->dfs_state))
601 goto nla_put_failure;
602 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
603 time))
604 goto nla_put_failure;
089027e5
JD		 605 if (nla_put_u32(msg,
606 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
607 chan->dfs_cac_ms))
608 goto nla_put_failure;
cdc89b97
JB		 609 }
610 }
5dab3b8a 611
fe1abafd
JB		 612 if (large) {
613 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
614 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
615 goto nla_put_failure;
616 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
617 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
618 goto nla_put_failure;
619 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
620 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
621 goto nla_put_failure;
622 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
623 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
624 goto nla_put_failure;
570dbde1
DS		 625 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
626 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
627 goto nla_put_failure;
628 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
629 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
630 goto nla_put_failure;
ea077c1c
RL		 631 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
632 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
633 goto nla_put_failure;
634 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
635 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
636 goto nla_put_failure;
fe1abafd
JB		 637 }
638
9360ffd1
DM		 639 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
640 DBM_TO_MBM(chan->max_power)))
641 goto nla_put_failure;
5dab3b8a
LR		 642
643 return 0;
644
645 nla_put_failure:
646 return -ENOBUFS;
647}
648
55682965
JB		 649/* netlink command implementations */
650
b9454e83
JB		 651struct key_parse {
652 struct key_params p;
653 int idx;
e31b8213 654 int type;
b9454e83 655 bool def, defmgmt;
dbd2fd65 656 bool def_uni, def_multi;
b9454e83
JB		 657};
658
659static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
660{
661 struct nlattr *tb[NL80211_KEY_MAX + 1];
662 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
663 nl80211_key_policy);
664 if (err)
665 return err;
666
667 k->def = !!tb[NL80211_KEY_DEFAULT];
668 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
669
dbd2fd65
JB		 670 if (k->def) {
671 k->def_uni = true;
672 k->def_multi = true;
673 }
674 if (k->defmgmt)
675 k->def_multi = true;
676
b9454e83
JB		 677 if (tb[NL80211_KEY_IDX])
678 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
679
680 if (tb[NL80211_KEY_DATA]) {
681 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
682 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
683 }
684
685 if (tb[NL80211_KEY_SEQ]) {
686 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
687 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
688 }
689
690 if (tb[NL80211_KEY_CIPHER])
691 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
692
e31b8213
JB		 693 if (tb[NL80211_KEY_TYPE]) {
694 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
695 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
696 return -EINVAL;
697 }
698
dbd2fd65
JB		 699 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
700 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 701 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
702 tb[NL80211_KEY_DEFAULT_TYPES],
703 nl80211_key_default_policy);
dbd2fd65
JB		 704 if (err)
705 return err;
706
707 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
708 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
709 }
710
b9454e83
JB		 711 return 0;
712}
713
714static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
715{
716 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
717 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
718 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
719 }
720
721 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
722 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
723 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
724 }
725
726 if (info->attrs[NL80211_ATTR_KEY_IDX])
727 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
728
729 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
730 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
731
732 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
733 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
734
dbd2fd65
JB		 735 if (k->def) {
736 k->def_uni = true;
737 k->def_multi = true;
738 }
739 if (k->defmgmt)
740 k->def_multi = true;
741
e31b8213
JB		 742 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
743 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
744 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
745 return -EINVAL;
746 }
747
dbd2fd65
JB		 748 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
749 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
750 int err = nla_parse_nested(
751 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
752 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
753 nl80211_key_default_policy);
754 if (err)
755 return err;
756
757 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
758 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
759 }
760
b9454e83
JB		 761 return 0;
762}
763
764static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
765{
766 int err;
767
768 memset(k, 0, sizeof(*k));
769 k->idx = -1;
e31b8213 770 k->type = -1;
b9454e83
JB		 771
772 if (info->attrs[NL80211_ATTR_KEY])
773 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
774 else
775 err = nl80211_parse_key_old(info, k);
776
777 if (err)
778 return err;
779
780 if (k->def && k->defmgmt)
781 return -EINVAL;
782
dbd2fd65
JB		 783 if (k->defmgmt) {
784 if (k->def_uni || !k->def_multi)
785 return -EINVAL;
786 }
787
b9454e83
JB		 788 if (k->idx != -1) {
789 if (k->defmgmt) {
790 if (k->idx < 4 || k->idx > 5)
791 return -EINVAL;
792 } else if (k->def) {
793 if (k->idx < 0 || k->idx > 3)
794 return -EINVAL;
795 } else {
796 if (k->idx < 0 || k->idx > 5)
797 return -EINVAL;
798 }
799 }
800
801 return 0;
802}
803
fffd0934
JB		 804static struct cfg80211_cached_keys *
805nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 806 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 807{
808 struct key_parse parse;
809 struct nlattr *key;
810 struct cfg80211_cached_keys *result;
811 int rem, err, def = 0;
812
813 result = kzalloc(sizeof(*result), GFP_KERNEL);
814 if (!result)
815 return ERR_PTR(-ENOMEM);
816
817 result->def = -1;
818 result->defmgmt = -1;
819
820 nla_for_each_nested(key, keys, rem) {
821 memset(&parse, 0, sizeof(parse));
822 parse.idx = -1;
823
824 err = nl80211_parse_key_new(key, &parse);
825 if (err)
826 goto error;
827 err = -EINVAL;
828 if (!parse.p.key)
829 goto error;
830 if (parse.idx < 0 || parse.idx > 4)
831 goto error;
832 if (parse.def) {
833 if (def)
834 goto error;
835 def = 1;
836 result->def = parse.idx;
dbd2fd65
JB		 837 if (!parse.def_uni || !parse.def_multi)
838 goto error;
fffd0934
JB		 839 } else if (parse.defmgmt)
840 goto error;
841 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 842 parse.idx, false, NULL);
fffd0934
JB		 843 if (err)
844 goto error;
845 result->params[parse.idx].cipher = parse.p.cipher;
846 result->params[parse.idx].key_len = parse.p.key_len;
847 result->params[parse.idx].key = result->data[parse.idx];
848 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 849
850 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
851 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
852 if (no_ht)
853 *no_ht = true;
854 }
fffd0934
JB		 855 }
856
857 return result;
858 error:
859 kfree(result);
860 return ERR_PTR(err);
861}
862
863static int nl80211_key_allowed(struct wireless_dev *wdev)
864{
865 ASSERT_WDEV_LOCK(wdev);
866
fffd0934
JB		 867 switch (wdev->iftype) {
868 case NL80211_IFTYPE_AP:
869 case NL80211_IFTYPE_AP_VLAN:
074ac8df 870 case NL80211_IFTYPE_P2P_GO:
ff973af7 871 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 872 break;
873 case NL80211_IFTYPE_ADHOC:
fffd0934 874 case NL80211_IFTYPE_STATION:
074ac8df 875 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 876 if (!wdev->current_bss)
fffd0934
JB		 877 return -ENOLINK;
878 break;
879 default:
880 return -EINVAL;
881 }
882
883 return 0;
884}
885
664834de
JM		 886static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
887 struct nlattr *tb)
888{
889 struct ieee80211_channel *chan;
890
891 if (tb == NULL)
892 return NULL;
893 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
894 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
895 return NULL;
896 return chan;
897}
898
7527a782
JB		 899static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
900{
901 struct nlattr *nl_modes = nla_nest_start(msg, attr);
902 int i;
903
904 if (!nl_modes)
905 goto nla_put_failure;
906
907 i = 0;
908 while (ifmodes) {
9360ffd1
DM		 909 if ((ifmodes & 1) && nla_put_flag(msg, i))
910 goto nla_put_failure;
7527a782
JB		 911 ifmodes >>= 1;
912 i++;
913 }
914
915 nla_nest_end(msg, nl_modes);
916 return 0;
917
918nla_put_failure:
919 return -ENOBUFS;
920}
921
922static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 923 struct sk_buff *msg,
924 bool large)
7527a782
JB		 925{
926 struct nlattr *nl_combis;
927 int i, j;
928
929 nl_combis = nla_nest_start(msg,
930 NL80211_ATTR_INTERFACE_COMBINATIONS);
931 if (!nl_combis)
932 goto nla_put_failure;
933
934 for (i = 0; i < wiphy->n_iface_combinations; i++) {
935 const struct ieee80211_iface_combination *c;
936 struct nlattr *nl_combi, *nl_limits;
937
938 c = &wiphy->iface_combinations[i];
939
940 nl_combi = nla_nest_start(msg, i + 1);
941 if (!nl_combi)
942 goto nla_put_failure;
943
944 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
945 if (!nl_limits)
946 goto nla_put_failure;
947
948 for (j = 0; j < c->n_limits; j++) {
949 struct nlattr *nl_limit;
950
951 nl_limit = nla_nest_start(msg, j + 1);
952 if (!nl_limit)
953 goto nla_put_failure;
9360ffd1
DM		 954 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
955 c->limits[j].max))
956 goto nla_put_failure;
7527a782
JB		 957 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
958 c->limits[j].types))
959 goto nla_put_failure;
960 nla_nest_end(msg, nl_limit);
961 }
962
963 nla_nest_end(msg, nl_limits);
964
9360ffd1
DM		 965 if (c->beacon_int_infra_match &&
966 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
967 goto nla_put_failure;
968 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
969 c->num_different_channels) ||
970 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
971 c->max_interfaces))
972 goto nla_put_failure;
cdc89b97 973 if (large &&
8c48b50a
FF		 974 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
975 c->radar_detect_widths) ||
976 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
977 c->radar_detect_regions)))
cdc89b97 978 goto nla_put_failure;
7527a782
JB		 979
980 nla_nest_end(msg, nl_combi);
981 }
982
983 nla_nest_end(msg, nl_combis);
984
985 return 0;
986nla_put_failure:
987 return -ENOBUFS;
988}
989
3713b4e3 990#ifdef CONFIG_PM
b56cf720
JB		 991static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
992 struct sk_buff *msg)
993{
964dc9e2 994 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 995 struct nlattr *nl_tcp;
996
997 if (!tcp)
998 return 0;
999
1000 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1001 if (!nl_tcp)
1002 return -ENOBUFS;
1003
1004 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1005 tcp->data_payload_max))
1006 return -ENOBUFS;
1007
1008 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1009 tcp->data_payload_max))
1010 return -ENOBUFS;
1011
1012 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1013 return -ENOBUFS;
1014
1015 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1016 sizeof(*tcp->tok), tcp->tok))
1017 return -ENOBUFS;
1018
1019 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1020 tcp->data_interval_max))
1021 return -ENOBUFS;
1022
1023 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1024 tcp->wake_payload_max))
1025 return -ENOBUFS;
1026
1027 nla_nest_end(msg, nl_tcp);
1028 return 0;
1029}
1030
3713b4e3 1031static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1032 struct cfg80211_registered_device *rdev,
b56cf720 1033 bool large)
55682965 1034{
3713b4e3 1035 struct nlattr *nl_wowlan;
55682965 1036
1b8ec87a 1037 if (!rdev->wiphy.wowlan)
3713b4e3 1038 return 0;
55682965 1039
3713b4e3
JB		 1040 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1041 if (!nl_wowlan)
1042 return -ENOBUFS;
9360ffd1 1043
1b8ec87a 1044 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1045 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1046 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1047 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1048 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1049 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1050 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1051 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1052 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1053 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1054 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1055 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1056 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1057 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1058 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1060 return -ENOBUFS;
9360ffd1 1061
1b8ec87a 1062 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1063 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1064 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1065 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1066 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1067 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1068 };
9360ffd1 1069
3713b4e3
JB		 1070 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1071 sizeof(pat), &pat))
1072 return -ENOBUFS;
1073 }
9360ffd1 1074
1b8ec87a 1075 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1076 return -ENOBUFS;
1077
3713b4e3 1078 nla_nest_end(msg, nl_wowlan);
9360ffd1 1079
3713b4e3
JB		 1080 return 0;
1081}
1082#endif
9360ffd1 1083
be29b99a 1084static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1085 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1086{
1087 struct nl80211_coalesce_rule_support rule;
1088
1b8ec87a 1089 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1090 return 0;
1091
1b8ec87a
ZG		 1092 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1093 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1094 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1095 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1096 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1097 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1098
1099 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1100 return -ENOBUFS;
1101
1102 return 0;
1103}
1104
3713b4e3
JB		 1105static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1106 struct ieee80211_supported_band *sband)
1107{
1108 struct nlattr *nl_rates, *nl_rate;
1109 struct ieee80211_rate *rate;
1110 int i;
87bbbe22 1111
3713b4e3
JB		 1112 /* add HT info */
1113 if (sband->ht_cap.ht_supported &&
1114 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1115 sizeof(sband->ht_cap.mcs),
1116 &sband->ht_cap.mcs) ||
1117 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1118 sband->ht_cap.cap) ||
1119 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1120 sband->ht_cap.ampdu_factor) ||
1121 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1122 sband->ht_cap.ampdu_density)))
1123 return -ENOBUFS;
afe0cbf8 1124
3713b4e3
JB		 1125 /* add VHT info */
1126 if (sband->vht_cap.vht_supported &&
1127 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1128 sizeof(sband->vht_cap.vht_mcs),
1129 &sband->vht_cap.vht_mcs) ||
1130 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1131 sband->vht_cap.cap)))
1132 return -ENOBUFS;
f59ac048 1133
3713b4e3
JB		 1134 /* add bitrates */
1135 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1136 if (!nl_rates)
1137 return -ENOBUFS;
ee688b00 1138
3713b4e3
JB		 1139 for (i = 0; i < sband->n_bitrates; i++) {
1140 nl_rate = nla_nest_start(msg, i);
1141 if (!nl_rate)
1142 return -ENOBUFS;
ee688b00 1143
3713b4e3
JB		 1144 rate = &sband->bitrates[i];
1145 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1146 rate->bitrate))
1147 return -ENOBUFS;
1148 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1149 nla_put_flag(msg,
1150 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1151 return -ENOBUFS;
ee688b00 1152
3713b4e3
JB		 1153 nla_nest_end(msg, nl_rate);
1154 }
d51626df 1155
3713b4e3 1156 nla_nest_end(msg, nl_rates);
bf0c111e 1157
3713b4e3
JB		 1158 return 0;
1159}
ee688b00 1160
3713b4e3
JB		 1161static int
1162nl80211_send_mgmt_stypes(struct sk_buff *msg,
1163 const struct ieee80211_txrx_stypes *mgmt_stypes)
1164{
1165 u16 stypes;
1166 struct nlattr *nl_ftypes, *nl_ifs;
1167 enum nl80211_iftype ift;
1168 int i;
ee688b00 1169
3713b4e3
JB		 1170 if (!mgmt_stypes)
1171 return 0;
5dab3b8a 1172
3713b4e3
JB		 1173 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1174 if (!nl_ifs)
1175 return -ENOBUFS;
e2f367f2 1176
3713b4e3
JB		 1177 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1178 nl_ftypes = nla_nest_start(msg, ift);
1179 if (!nl_ftypes)
1180 return -ENOBUFS;
1181 i = 0;
1182 stypes = mgmt_stypes[ift].tx;
1183 while (stypes) {
1184 if ((stypes & 1) &&
1185 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1186 (i << 4) | IEEE80211_FTYPE_MGMT))
1187 return -ENOBUFS;
1188 stypes >>= 1;
1189 i++;
ee688b00 1190 }
3713b4e3
JB		 1191 nla_nest_end(msg, nl_ftypes);
1192 }
ee688b00 1193
3713b4e3 1194 nla_nest_end(msg, nl_ifs);
ee688b00 1195
3713b4e3
JB		 1196 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1197 if (!nl_ifs)
1198 return -ENOBUFS;
ee688b00 1199
3713b4e3
JB		 1200 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1201 nl_ftypes = nla_nest_start(msg, ift);
1202 if (!nl_ftypes)
1203 return -ENOBUFS;
1204 i = 0;
1205 stypes = mgmt_stypes[ift].rx;
1206 while (stypes) {
1207 if ((stypes & 1) &&
1208 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1209 (i << 4) | IEEE80211_FTYPE_MGMT))
1210 return -ENOBUFS;
1211 stypes >>= 1;
1212 i++;
1213 }
1214 nla_nest_end(msg, nl_ftypes);
1215 }
1216 nla_nest_end(msg, nl_ifs);
ee688b00 1217
3713b4e3
JB		 1218 return 0;
1219}
ee688b00 1220
86e8cf98
JB		 1221struct nl80211_dump_wiphy_state {
1222 s64 filter_wiphy;
1223 long start;
1224 long split_start, band_start, chan_start;
1225 bool split;
1226};
1227
1b8ec87a 1228static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3713b4e3 1229 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1230 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1231{
1232 void *hdr;
1233 struct nlattr *nl_bands, *nl_band;
1234 struct nlattr *nl_freqs, *nl_freq;
1235 struct nlattr *nl_cmds;
1236 enum ieee80211_band band;
1237 struct ieee80211_channel *chan;
1238 int i;
1239 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1240 rdev->wiphy.mgmt_stypes;
fe1abafd 1241 u32 features;
ee688b00 1242
3713b4e3
JB		 1243 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1244 if (!hdr)
1245 return -ENOBUFS;
ee688b00 1246
86e8cf98
JB		 1247 if (WARN_ON(!state))
1248 return -EINVAL;
ee688b00 1249
1b8ec87a 1250 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1251 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1252 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1253 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1254 cfg80211_rdev_list_generation))
8fdc621d
JB		 1255 goto nla_put_failure;
1256
86e8cf98 1257 switch (state->split_start) {
3713b4e3
JB		 1258 case 0:
1259 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1260 rdev->wiphy.retry_short) ||
3713b4e3 1261 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1262 rdev->wiphy.retry_long) ||
3713b4e3 1263 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1264 rdev->wiphy.frag_threshold) ||
3713b4e3 1265 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1266 rdev->wiphy.rts_threshold) ||
3713b4e3 1267 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1268 rdev->wiphy.coverage_class) ||
3713b4e3 1269 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1270 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1271 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1272 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1273 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1274 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1275 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1276 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1277 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1278 rdev->wiphy.max_match_sets))
9360ffd1 1279 goto nla_put_failure;
3713b4e3 1280
1b8ec87a 1281 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1282 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1283 goto nla_put_failure;
1b8ec87a 1284 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1285 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1286 goto nla_put_failure;
1b8ec87a 1287 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1288 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1289 goto nla_put_failure;
1b8ec87a 1290 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1291 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1292 goto nla_put_failure;
1b8ec87a 1293 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1294 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1295 goto nla_put_failure;
1b8ec87a 1296 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1297 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1298 goto nla_put_failure;
86e8cf98
JB		 1299 state->split_start++;
1300 if (state->split)
3713b4e3
JB		 1301 break;
1302 case 1:
1303 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1304 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1305 rdev->wiphy.cipher_suites))
3713b4e3 1306 goto nla_put_failure;
4745fc09 1307
3713b4e3 1308 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1309 rdev->wiphy.max_num_pmkids))
3713b4e3 1310 goto nla_put_failure;
b23aa676 1311
1b8ec87a 1312 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1313 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1314 goto nla_put_failure;
b23aa676 1315
3713b4e3 1316 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1317 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1318 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1319 rdev->wiphy.available_antennas_rx))
9360ffd1 1320 goto nla_put_failure;
b23aa676 1321
1b8ec87a 1322 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1323 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1324 rdev->wiphy.probe_resp_offload))
3713b4e3 1325 goto nla_put_failure;
8fdc621d 1326
1b8ec87a
ZG		 1327 if ((rdev->wiphy.available_antennas_tx ||
1328 rdev->wiphy.available_antennas_rx) &&
1329 rdev->ops->get_antenna) {
3713b4e3
JB		 1330 u32 tx_ant = 0, rx_ant = 0;
1331 int res;
1b8ec87a 1332 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1333 if (!res) {
1334 if (nla_put_u32(msg,
1335 NL80211_ATTR_WIPHY_ANTENNA_TX,
1336 tx_ant) ||
1337 nla_put_u32(msg,
1338 NL80211_ATTR_WIPHY_ANTENNA_RX,
1339 rx_ant))
1340 goto nla_put_failure;
1341 }
1342 }
a293911d 1343
86e8cf98
JB		 1344 state->split_start++;
1345 if (state->split)
3713b4e3
JB		 1346 break;
1347 case 2:
1348 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1349 rdev->wiphy.interface_modes))
3713b4e3 1350 goto nla_put_failure;
86e8cf98
JB		 1351 state->split_start++;
1352 if (state->split)
3713b4e3
JB		 1353 break;
1354 case 3:
1355 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1356 if (!nl_bands)
1357 goto nla_put_failure;
f7ca38df 1358
86e8cf98
JB		 1359 for (band = state->band_start;
1360 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1361 struct ieee80211_supported_band *sband;
2e161f78 1362
1b8ec87a 1363 sband = rdev->wiphy.bands[band];
2e161f78 1364
3713b4e3
JB		 1365 if (!sband)
1366 continue;
1367
1368 nl_band = nla_nest_start(msg, band);
1369 if (!nl_band)
2e161f78 1370 goto nla_put_failure;
3713b4e3 1371
86e8cf98 1372 switch (state->chan_start) {
3713b4e3
JB		 1373 case 0:
1374 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1375 goto nla_put_failure;
86e8cf98
JB		 1376 state->chan_start++;
1377 if (state->split)
3713b4e3
JB		 1378 break;
1379 default:
1380 /* add frequencies */
1381 nl_freqs = nla_nest_start(
1382 msg, NL80211_BAND_ATTR_FREQS);
1383 if (!nl_freqs)
1384 goto nla_put_failure;
1385
86e8cf98 1386 for (i = state->chan_start - 1;
3713b4e3
JB		 1387 i < sband->n_channels;
1388 i++) {
1389 nl_freq = nla_nest_start(msg, i);
1390 if (!nl_freq)
1391 goto nla_put_failure;
1392
1393 chan = &sband->channels[i];
1394
86e8cf98
JB		 1395 if (nl80211_msg_put_channel(
1396 msg, chan,
1397 state->split))
3713b4e3
JB		 1398 goto nla_put_failure;
1399
1400 nla_nest_end(msg, nl_freq);
86e8cf98 1401 if (state->split)
3713b4e3
JB		 1402 break;
1403 }
1404 if (i < sband->n_channels)
86e8cf98 1405 state->chan_start = i + 2;
3713b4e3 1406 else
86e8cf98 1407 state->chan_start = 0;
3713b4e3
JB		 1408 nla_nest_end(msg, nl_freqs);
1409 }
1410
1411 nla_nest_end(msg, nl_band);
1412
86e8cf98 1413 if (state->split) {
3713b4e3 1414 /* start again here */
86e8cf98 1415 if (state->chan_start)
3713b4e3
JB		 1416 band--;
1417 break;
2e161f78 1418 }
2e161f78 1419 }
3713b4e3 1420 nla_nest_end(msg, nl_bands);
2e161f78 1421
3713b4e3 1422 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1423 state->band_start = band + 1;
3713b4e3 1424 else
86e8cf98 1425 state->band_start = 0;
74b70a4e 1426
3713b4e3 1427 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1428 if (state->band_start == 0 && state->chan_start == 0)
1429 state->split_start++;
1430 if (state->split)
3713b4e3
JB		 1431 break;
1432 case 4:
1433 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1434 if (!nl_cmds)
2e161f78
JB		 1435 goto nla_put_failure;
1436
3713b4e3
JB		 1437 i = 0;
1438#define CMD(op, n) \
1439 do { \
1b8ec87a 1440 if (rdev->ops->op) { \
3713b4e3
JB		 1441 i++; \
1442 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1443 goto nla_put_failure; \
1444 } \
1445 } while (0)
1446
1447 CMD(add_virtual_intf, NEW_INTERFACE);
1448 CMD(change_virtual_intf, SET_INTERFACE);
1449 CMD(add_key, NEW_KEY);
1450 CMD(start_ap, START_AP);
1451 CMD(add_station, NEW_STATION);
1452 CMD(add_mpath, NEW_MPATH);
1453 CMD(update_mesh_config, SET_MESH_CONFIG);
1454 CMD(change_bss, SET_BSS);
1455 CMD(auth, AUTHENTICATE);
1456 CMD(assoc, ASSOCIATE);
1457 CMD(deauth, DEAUTHENTICATE);
1458 CMD(disassoc, DISASSOCIATE);
1459 CMD(join_ibss, JOIN_IBSS);
1460 CMD(join_mesh, JOIN_MESH);
1461 CMD(set_pmksa, SET_PMKSA);
1462 CMD(del_pmksa, DEL_PMKSA);
1463 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1464 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1465 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1466 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1467 CMD(mgmt_tx, FRAME);
1468 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1469 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1470 i++;
1471 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1472 goto nla_put_failure;
2e161f78 1473 }
1b8ec87a
ZG		 1474 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1475 rdev->ops->join_mesh) {
3713b4e3
JB		 1476 i++;
1477 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1478 goto nla_put_failure;
1479 }
1480 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1481 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1482 CMD(tdls_mgmt, TDLS_MGMT);
1483 CMD(tdls_oper, TDLS_OPER);
1484 }
1b8ec87a 1485 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1486 CMD(sched_scan_start, START_SCHED_SCAN);
1487 CMD(probe_client, PROBE_CLIENT);
1488 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1489 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1490 i++;
1491 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1492 goto nla_put_failure;
1493 }
1494 CMD(start_p2p_device, START_P2P_DEVICE);
1495 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1496 if (state->split) {
5de17984
AS		 1497 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1498 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1499 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1500 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1501 }
fa9ffc74 1502 CMD(set_qos_map, SET_QOS_MAP);
2e161f78 1503
3713b4e3
JB		 1504#ifdef CONFIG_NL80211_TESTMODE
1505 CMD(testmode_cmd, TESTMODE);
1506#endif
ff1b6e69 1507
3713b4e3 1508#undef CMD
ff1b6e69 1509
1b8ec87a 1510 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1511 i++;
1512 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1513 goto nla_put_failure;
ff1b6e69
JB		 1514 }
1515
1b8ec87a 1516 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1517 i++;
1518 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1519 goto nla_put_failure;
1520 }
1521
1522 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1523 state->split_start++;
1524 if (state->split)
3713b4e3
JB		 1525 break;
1526 case 5:
1b8ec87a
ZG		 1527 if (rdev->ops->remain_on_channel &&
1528 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1529 nla_put_u32(msg,
1530 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1531 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1532 goto nla_put_failure;
1533
1b8ec87a 1534 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1535 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1536 goto nla_put_failure;
1537
1538 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1539 goto nla_put_failure;
86e8cf98
JB		 1540 state->split_start++;
1541 if (state->split)
3713b4e3
JB		 1542 break;
1543 case 6:
1544#ifdef CONFIG_PM
1b8ec87a 1545 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1546 goto nla_put_failure;
86e8cf98
JB		 1547 state->split_start++;
1548 if (state->split)
3713b4e3
JB		 1549 break;
1550#else
86e8cf98 1551 state->split_start++;
dfb89c56 1552#endif
3713b4e3
JB		 1553 case 7:
1554 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1555 rdev->wiphy.software_iftypes))
3713b4e3 1556 goto nla_put_failure;
ff1b6e69 1557
1b8ec87a 1558 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1559 state->split))
3713b4e3 1560 goto nla_put_failure;
7527a782 1561
86e8cf98
JB		 1562 state->split_start++;
1563 if (state->split)
3713b4e3
JB		 1564 break;
1565 case 8:
1b8ec87a 1566 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1567 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1568 rdev->wiphy.ap_sme_capa))
3713b4e3 1569 goto nla_put_failure;
7527a782 1570
1b8ec87a 1571 features = rdev->wiphy.features;
fe1abafd
JB		 1572 /*
1573 * We can only add the per-channel limit information if the
1574 * dump is split, otherwise it makes it too big. Therefore
1575 * only advertise it in that case.
1576 */
86e8cf98 1577 if (state->split)
fe1abafd
JB		 1578 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1579 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1580 goto nla_put_failure;
562a7480 1581
1b8ec87a 1582 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1583 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1584 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1585 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1586 goto nla_put_failure;
1f074bd8 1587
1b8ec87a
ZG		 1588 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1589 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1590 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1591 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1592 goto nla_put_failure;
7e7c8926 1593
3713b4e3
JB		 1594 /*
1595 * Any information below this point is only available to
1596 * applications that can deal with it being split. This
1597 * helps ensure that newly added capabilities don't break
1598 * older tools by overrunning their buffers.
1599 *
1600 * We still increment split_start so that in the split
1601 * case we'll continue with more data in the next round,
1602 * but break unconditionally so unsplit data stops here.
1603 */
86e8cf98 1604 state->split_start++;
3713b4e3
JB		 1605 break;
1606 case 9:
1b8ec87a 1607 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1608 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1609 rdev->wiphy.extended_capabilities_len,
1610 rdev->wiphy.extended_capabilities) ||
fe1abafd 1611 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1612 rdev->wiphy.extended_capabilities_len,
1613 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1614 goto nla_put_failure;
a50df0c4 1615
1b8ec87a 1616 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1617 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1618 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1619 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1620 goto nla_put_failure;
1621
be29b99a
AK		 1622 state->split_start++;
1623 break;
1624 case 10:
1b8ec87a 1625 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1626 goto nla_put_failure;
1627
1b8ec87a 1628 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1629 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1630 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1631 goto nla_put_failure;
b43504cf 1632
1b8ec87a 1633 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1634 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1635 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1636 goto nla_put_failure;
1637
ad7e718c
JB		 1638 state->split_start++;
1639 break;
1640 case 11:
1b8ec87a 1641 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1642 const struct nl80211_vendor_cmd_info *info;
1643 struct nlattr *nested;
1644
1645 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1646 if (!nested)
1647 goto nla_put_failure;
1648
1b8ec87a
ZG		 1649 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1650 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1651 if (nla_put(msg, i + 1, sizeof(*info), info))
1652 goto nla_put_failure;
1653 }
1654 nla_nest_end(msg, nested);
1655 }
1656
1b8ec87a 1657 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1658 const struct nl80211_vendor_cmd_info *info;
1659 struct nlattr *nested;
ad7e718c 1660
567ffc35
JB		 1661 nested = nla_nest_start(msg,
1662 NL80211_ATTR_VENDOR_EVENTS);
1663 if (!nested)
ad7e718c 1664 goto nla_put_failure;
567ffc35 1665
1b8ec87a
ZG		 1666 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1667 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1668 if (nla_put(msg, i + 1, sizeof(*info), info))
1669 goto nla_put_failure;
1670 }
1671 nla_nest_end(msg, nested);
1672 }
01e0daa4 1673
3713b4e3 1674 /* done */
86e8cf98 1675 state->split_start = 0;
3713b4e3
JB		 1676 break;
1677 }
55682965
JB		 1678 return genlmsg_end(msg, hdr);
1679
1680 nla_put_failure:
bc3ed28c
TG		 1681 genlmsg_cancel(msg, hdr);
1682 return -EMSGSIZE;
55682965
JB		 1683}
1684
86e8cf98
JB		 1685static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1686 struct netlink_callback *cb,
1687 struct nl80211_dump_wiphy_state *state)
1688{
1689 struct nlattr **tb = nl80211_fam.attrbuf;
1690 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1691 tb, nl80211_fam.maxattr, nl80211_policy);
1692 /* ignore parse errors for backward compatibility */
1693 if (ret)
1694 return 0;
1695
1696 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1697 if (tb[NL80211_ATTR_WIPHY])
1698 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1699 if (tb[NL80211_ATTR_WDEV])
1700 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1701 if (tb[NL80211_ATTR_IFINDEX]) {
1702 struct net_device *netdev;
1703 struct cfg80211_registered_device *rdev;
1704 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1705
7f2b8562 1706 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1707 if (!netdev)
1708 return -ENODEV;
1709 if (netdev->ieee80211_ptr) {
f26cbf40 1710 rdev = wiphy_to_rdev(
86e8cf98
JB		 1711 netdev->ieee80211_ptr->wiphy);
1712 state->filter_wiphy = rdev->wiphy_idx;
1713 }
86e8cf98
JB		 1714 }
1715
1716 return 0;
1717}
1718
55682965
JB		 1719static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1720{
645e77de 1721 int idx = 0, ret;
86e8cf98 1722 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1723 struct cfg80211_registered_device *rdev;
3a5a423b 1724
5fe231e8 1725 rtnl_lock();
86e8cf98
JB		 1726 if (!state) {
1727 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1728 if (!state) {
1729 rtnl_unlock();
86e8cf98 1730 return -ENOMEM;
3713b4e3 1731 }
86e8cf98
JB		 1732 state->filter_wiphy = -1;
1733 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1734 if (ret) {
1735 kfree(state);
1736 rtnl_unlock();
1737 return ret;
3713b4e3 1738 }
86e8cf98 1739 cb->args[0] = (long)state;
3713b4e3
JB		 1740 }
1741
1b8ec87a
ZG		 1742 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1743 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1744 continue;
86e8cf98 1745 if (++idx <= state->start)
55682965 1746 continue;
86e8cf98 1747 if (state->filter_wiphy != -1 &&
1b8ec87a 1748 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1749 continue;
1750 /* attempt to fit multiple wiphy data chunks into the skb */
1751 do {
1b8ec87a 1752 ret = nl80211_send_wiphy(rdev, skb,
3713b4e3
JB		 1753 NETLINK_CB(cb->skb).portid,
1754 cb->nlh->nlmsg_seq,
86e8cf98 1755 NLM_F_MULTI, state);
3713b4e3
JB		 1756 if (ret < 0) {
1757 /*
1758 * If sending the wiphy data didn't fit (ENOBUFS
1759 * or EMSGSIZE returned), this SKB is still
1760 * empty (so it's not too big because another
1761 * wiphy dataset is already in the skb) and
1762 * we've not tried to adjust the dump allocation
1763 * yet ... then adjust the alloc size to be
1764 * bigger, and return 1 but with the empty skb.
1765 * This results in an empty message being RX'ed
1766 * in userspace, but that is ignored.
1767 *
1768 * We can then retry with the larger buffer.
1769 */
1770 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1771 !skb->len && !state->split &&
3713b4e3
JB		 1772 cb->min_dump_alloc < 4096) {
1773 cb->min_dump_alloc = 4096;
f12cb289 1774 state->split_start = 0;
d98cae64 1775 rtnl_unlock();
3713b4e3
JB		 1776 return 1;
1777 }
1778 idx--;
1779 break;
645e77de 1780 }
86e8cf98 1781 } while (state->split_start > 0);
3713b4e3 1782 break;
55682965 1783 }
5fe231e8 1784 rtnl_unlock();
55682965 1785
86e8cf98 1786 state->start = idx;
55682965
JB		 1787
1788 return skb->len;
1789}
1790
86e8cf98
JB		 1791static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1792{
1793 kfree((void *)cb->args[0]);
1794 return 0;
1795}
1796
55682965
JB		 1797static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1798{
1799 struct sk_buff *msg;
1b8ec87a 1800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1801 struct nl80211_dump_wiphy_state state = {};
55682965 1802
645e77de 1803 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1804 if (!msg)
4c476991 1805 return -ENOMEM;
55682965 1806
1b8ec87a 1807 if (nl80211_send_wiphy(rdev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1808 &state) < 0) {
4c476991
JB		 1809 nlmsg_free(msg);
1810 return -ENOBUFS;
1811 }
55682965 1812
134e6375 1813 return genlmsg_reply(msg, info);
55682965
JB		 1814}
1815
31888487
JM		 1816static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1817 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1818 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1819 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1820 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1821 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1822};
1823
1824static int parse_txq_params(struct nlattr *tb[],
1825 struct ieee80211_txq_params *txq_params)
1826{
a3304b0a 1827 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1828 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1829 !tb[NL80211_TXQ_ATTR_AIFS])
1830 return -EINVAL;
1831
a3304b0a 1832 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1833 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1834 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1835 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1836 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1837
a3304b0a
JB		 1838 if (txq_params->ac >= NL80211_NUM_ACS)
1839 return -EINVAL;
1840
31888487
JM		 1841 return 0;
1842}
1843
f444de05
JB		 1844static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1845{
1846 /*
cc1d2806
JB		 1847 * You can only set the channel explicitly for WDS interfaces,
1848 * all others have their channel managed via their respective
1849 * "establish a connection" command (connect, join, ...)
1850 *
1851 * For AP/GO and mesh mode, the channel can be set with the
1852 * channel userspace API, but is only stored and passed to the
1853 * low-level driver when the AP starts or the mesh is joined.
1854 * This is for backward compatibility, userspace can also give
1855 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1856 *
1857 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1858 * whatever else is going on, so they have their own special
1859 * operation to set the monitor channel if possible.
f444de05
JB		 1860 */
1861 return !wdev ||
1862 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1863 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1864 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1865 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1866}
1867
683b6d3b
JB		 1868static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1869 struct genl_info *info,
1870 struct cfg80211_chan_def *chandef)
1871{
dbeca2ea 1872 u32 control_freq;
683b6d3b
JB		 1873
1874 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1875 return -EINVAL;
1876
1877 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1878
1879 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1880 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1881 chandef->center_freq1 = control_freq;
1882 chandef->center_freq2 = 0;
683b6d3b
JB		 1883
1884 /* Primary channel not allowed */
1885 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1886 return -EINVAL;
1887
3d9d1d66
JB		 1888 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1889 enum nl80211_channel_type chantype;
1890
1891 chantype = nla_get_u32(
1892 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1893
1894 switch (chantype) {
1895 case NL80211_CHAN_NO_HT:
1896 case NL80211_CHAN_HT20:
1897 case NL80211_CHAN_HT40PLUS:
1898 case NL80211_CHAN_HT40MINUS:
1899 cfg80211_chandef_create(chandef, chandef->chan,
1900 chantype);
1901 break;
1902 default:
1903 return -EINVAL;
1904 }
1905 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1906 chandef->width =
1907 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1908 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1909 chandef->center_freq1 =
1910 nla_get_u32(
1911 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1912 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1913 chandef->center_freq2 =
1914 nla_get_u32(
1915 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1916 }
1917
9f5e8f6e 1918 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1919 return -EINVAL;
1920
9f5e8f6e
JB		 1921 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1922 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1923 return -EINVAL;
1924
2f301ab2
SW		 1925 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1926 chandef->width == NL80211_CHAN_WIDTH_10) &&
1927 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1928 return -EINVAL;
1929
683b6d3b
JB		 1930 return 0;
1931}
1932
f444de05 1933static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1934 struct net_device *dev,
f444de05
JB		 1935 struct genl_info *info)
1936{
683b6d3b 1937 struct cfg80211_chan_def chandef;
f444de05 1938 int result;
e8c9bd5b 1939 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1940 struct wireless_dev *wdev = NULL;
e8c9bd5b 1941
e16821bc
JM		 1942 if (dev)
1943 wdev = dev->ieee80211_ptr;
f444de05
JB		 1944 if (!nl80211_can_set_dev_channel(wdev))
1945 return -EOPNOTSUPP;
e16821bc
JM		 1946 if (wdev)
1947 iftype = wdev->iftype;
f444de05 1948
683b6d3b
JB		 1949 result = nl80211_parse_chandef(rdev, info, &chandef);
1950 if (result)
1951 return result;
f444de05 1952
e8c9bd5b 1953 switch (iftype) {
aa430da4
JB		 1954 case NL80211_IFTYPE_AP:
1955 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1956 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1957 result = -EINVAL;
1958 break;
1959 }
e16821bc
JM		 1960 if (wdev->beacon_interval) {
1961 if (!dev || !rdev->ops->set_ap_chanwidth ||
1962 !(rdev->wiphy.features &
1963 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1964 result = -EBUSY;
1965 break;
1966 }
1967
1968 /* Only allow dynamic channel width changes */
1969 if (chandef.chan != wdev->preset_chandef.chan) {
1970 result = -EBUSY;
1971 break;
1972 }
1973 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1974 if (result)
1975 break;
1976 }
683b6d3b 1977 wdev->preset_chandef = chandef;
aa430da4
JB		 1978 result = 0;
1979 break;
cc1d2806 1980 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1981 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1982 break;
e8c9bd5b 1983 case NL80211_IFTYPE_MONITOR:
683b6d3b 1984 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1985 break;
aa430da4 1986 default:
e8c9bd5b 1987 result = -EINVAL;
f444de05 1988 }
f444de05
JB		 1989
1990 return result;
1991}
1992
1993static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1994{
4c476991
JB		 1995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1996 struct net_device *netdev = info->user_ptr[1];
f444de05 1997
e16821bc 1998 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 1999}
2000
e8347eba
BJ		 2001static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2002{
43b19952
JB		 2003 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2004 struct net_device *dev = info->user_ptr[1];
2005 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2006 const u8 *bssid;
e8347eba
BJ		 2007
2008 if (!info->attrs[NL80211_ATTR_MAC])
2009 return -EINVAL;
2010
43b19952
JB		 2011 if (netif_running(dev))
2012 return -EBUSY;
e8347eba 2013
43b19952
JB		 2014 if (!rdev->ops->set_wds_peer)
2015 return -EOPNOTSUPP;
e8347eba 2016
43b19952
JB		 2017 if (wdev->iftype != NL80211_IFTYPE_WDS)
2018 return -EOPNOTSUPP;
e8347eba
BJ		 2019
2020 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2021 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2022}
2023
2024
55682965
JB		 2025static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2026{
2027 struct cfg80211_registered_device *rdev;
f444de05
JB		 2028 struct net_device *netdev = NULL;
2029 struct wireless_dev *wdev;
a1e567c8 2030 int result = 0, rem_txq_params = 0;
31888487 2031 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2032 u32 changed;
2033 u8 retry_short = 0, retry_long = 0;
2034 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2035 u8 coverage_class = 0;
55682965 2036
5fe231e8
JB		 2037 ASSERT_RTNL();
2038
f444de05
JB		 2039 /*
2040 * Try to find the wiphy and netdev. Normally this
2041 * function shouldn't need the netdev, but this is
2042 * done for backward compatibility -- previously
2043 * setting the channel was done per wiphy, but now
2044 * it is per netdev. Previous userland like hostapd
2045 * also passed a netdev to set_wiphy, so that it is
2046 * possible to let that go to the right netdev!
2047 */
4bbf4d56 2048
f444de05
JB		 2049 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2050 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2051
7f2b8562 2052 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2053 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2054 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2055 else
f444de05 2056 netdev = NULL;
4bbf4d56
JB		 2057 }
2058
f444de05 2059 if (!netdev) {
878d9ec7
JB		 2060 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2061 info->attrs);
5fe231e8 2062 if (IS_ERR(rdev))
4c476991 2063 return PTR_ERR(rdev);
f444de05
JB		 2064 wdev = NULL;
2065 netdev = NULL;
2066 result = 0;
71fe96bf 2067 } else
f444de05 2068 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2069
2070 /*
2071 * end workaround code, by now the rdev is available
2072 * and locked, and wdev may or may not be NULL.
2073 */
4bbf4d56
JB		 2074
2075 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2076 result = cfg80211_dev_rename(
2077 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2078
4bbf4d56 2079 if (result)
7f2b8562 2080 return result;
31888487
JM		 2081
2082 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2083 struct ieee80211_txq_params txq_params;
2084 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2085
7f2b8562
YX		 2086 if (!rdev->ops->set_txq_params)
2087 return -EOPNOTSUPP;
31888487 2088
7f2b8562
YX		 2089 if (!netdev)
2090 return -EINVAL;
f70f01c2 2091
133a3ff2 2092 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2093 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2094 return -EINVAL;
133a3ff2 2095
7f2b8562
YX		 2096 if (!netif_running(netdev))
2097 return -ENETDOWN;
2b5f8b0b 2098
31888487
JM		 2099 nla_for_each_nested(nl_txq_params,
2100 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2101 rem_txq_params) {
ae811e21
JB		 2102 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2103 nla_data(nl_txq_params),
2104 nla_len(nl_txq_params),
2105 txq_params_policy);
2106 if (result)
2107 return result;
31888487
JM		 2108 result = parse_txq_params(tb, &txq_params);
2109 if (result)
7f2b8562 2110 return result;
31888487 2111
e35e4d28
HG		 2112 result = rdev_set_txq_params(rdev, netdev,
2113 &txq_params);
31888487 2114 if (result)
7f2b8562 2115 return result;
31888487
JM		 2116 }
2117 }
55682965 2118
72bdcf34 2119 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2120 result = __nl80211_set_channel(
2121 rdev,
2122 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2123 info);
72bdcf34 2124 if (result)
7f2b8562 2125 return result;
72bdcf34
JM		 2126 }
2127
98d2ff8b 2128 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2129 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2130 enum nl80211_tx_power_setting type;
2131 int idx, mbm = 0;
2132
c8442118
JB		 2133 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2134 txp_wdev = NULL;
2135
7f2b8562
YX		 2136 if (!rdev->ops->set_tx_power)
2137 return -EOPNOTSUPP;
98d2ff8b
JO		 2138
2139 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2140 type = nla_get_u32(info->attrs[idx]);
2141
2142 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2143 (type != NL80211_TX_POWER_AUTOMATIC))
2144 return -EINVAL;
98d2ff8b
JO		 2145
2146 if (type != NL80211_TX_POWER_AUTOMATIC) {
2147 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2148 mbm = nla_get_u32(info->attrs[idx]);
2149 }
2150
c8442118 2151 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2152 if (result)
7f2b8562 2153 return result;
98d2ff8b
JO		 2154 }
2155
afe0cbf8
BR		 2156 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2157 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2158 u32 tx_ant, rx_ant;
7f531e03
BR		 2159 if ((!rdev->wiphy.available_antennas_tx &&
2160 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2161 !rdev->ops->set_antenna)
2162 return -EOPNOTSUPP;
afe0cbf8
BR		 2163
2164 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2165 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2166
a7ffac95 2167 /* reject antenna configurations which don't match the
7f531e03
BR		 2168 * available antenna masks, except for the "all" mask */
2169 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2170 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2171 return -EINVAL;
a7ffac95 2172
7f531e03
BR		 2173 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2174 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2175
e35e4d28 2176 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2177 if (result)
7f2b8562 2178 return result;
afe0cbf8
BR		 2179 }
2180
b9a5f8ca
JM		 2181 changed = 0;
2182
2183 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2184 retry_short = nla_get_u8(
2185 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2186 if (retry_short == 0)
2187 return -EINVAL;
2188
b9a5f8ca
JM		 2189 changed |= WIPHY_PARAM_RETRY_SHORT;
2190 }
2191
2192 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2193 retry_long = nla_get_u8(
2194 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2195 if (retry_long == 0)
2196 return -EINVAL;
2197
b9a5f8ca
JM		 2198 changed |= WIPHY_PARAM_RETRY_LONG;
2199 }
2200
2201 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2202 frag_threshold = nla_get_u32(
2203 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2204 if (frag_threshold < 256)
2205 return -EINVAL;
2206
b9a5f8ca
JM		 2207 if (frag_threshold != (u32) -1) {
2208 /*
2209 * Fragments (apart from the last one) are required to
2210 * have even length. Make the fragmentation code
2211 * simpler by stripping LSB should someone try to use
2212 * odd threshold value.
2213 */
2214 frag_threshold &= ~0x1;
2215 }
2216 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2217 }
2218
2219 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2220 rts_threshold = nla_get_u32(
2221 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2222 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2223 }
2224
81077e82
LT		 2225 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2226 coverage_class = nla_get_u8(
2227 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2228 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2229 }
2230
b9a5f8ca
JM		 2231 if (changed) {
2232 u8 old_retry_short, old_retry_long;
2233 u32 old_frag_threshold, old_rts_threshold;
81077e82 2234 u8 old_coverage_class;
b9a5f8ca 2235
7f2b8562
YX		 2236 if (!rdev->ops->set_wiphy_params)
2237 return -EOPNOTSUPP;
b9a5f8ca
JM		 2238
2239 old_retry_short = rdev->wiphy.retry_short;
2240 old_retry_long = rdev->wiphy.retry_long;
2241 old_frag_threshold = rdev->wiphy.frag_threshold;
2242 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2243 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2244
2245 if (changed & WIPHY_PARAM_RETRY_SHORT)
2246 rdev->wiphy.retry_short = retry_short;
2247 if (changed & WIPHY_PARAM_RETRY_LONG)
2248 rdev->wiphy.retry_long = retry_long;
2249 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2250 rdev->wiphy.frag_threshold = frag_threshold;
2251 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2252 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2253 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2254 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2255
e35e4d28 2256 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2257 if (result) {
2258 rdev->wiphy.retry_short = old_retry_short;
2259 rdev->wiphy.retry_long = old_retry_long;
2260 rdev->wiphy.frag_threshold = old_frag_threshold;
2261 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2262 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2263 }
2264 }
7f2b8562 2265 return 0;
55682965
JB		 2266}
2267
71bbc994
JB		 2268static inline u64 wdev_id(struct wireless_dev *wdev)
2269{
2270 return (u64)wdev->identifier |
f26cbf40 2271 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2272}
55682965 2273
683b6d3b 2274static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2275 const struct cfg80211_chan_def *chandef)
683b6d3b 2276{
9f5e8f6e 2277 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2278
683b6d3b
JB		 2279 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2280 chandef->chan->center_freq))
2281 return -ENOBUFS;
3d9d1d66
JB		 2282 switch (chandef->width) {
2283 case NL80211_CHAN_WIDTH_20_NOHT:
2284 case NL80211_CHAN_WIDTH_20:
2285 case NL80211_CHAN_WIDTH_40:
2286 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2287 cfg80211_get_chandef_type(chandef)))
2288 return -ENOBUFS;
2289 break;
2290 default:
2291 break;
2292 }
2293 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2294 return -ENOBUFS;
2295 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2296 return -ENOBUFS;
2297 if (chandef->center_freq2 &&
2298 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2299 return -ENOBUFS;
2300 return 0;
2301}
2302
15e47304 2303static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2304 struct cfg80211_registered_device *rdev,
72fb2abc 2305 struct wireless_dev *wdev)
55682965 2306{
72fb2abc 2307 struct net_device *dev = wdev->netdev;
55682965
JB		 2308 void *hdr;
2309
15e47304 2310 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2311 if (!hdr)
2312 return -1;
2313
72fb2abc
JB		 2314 if (dev &&
2315 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2316 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2317 goto nla_put_failure;
2318
2319 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2320 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2321 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2322 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2323 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2324 rdev->devlist_generation ^
2325 (cfg80211_rdev_list_generation << 2)))
2326 goto nla_put_failure;
f5ea9120 2327
5b7ccaf3 2328 if (rdev->ops->get_channel) {
683b6d3b
JB		 2329 int ret;
2330 struct cfg80211_chan_def chandef;
2331
2332 ret = rdev_get_channel(rdev, wdev, &chandef);
2333 if (ret == 0) {
2334 if (nl80211_send_chandef(msg, &chandef))
2335 goto nla_put_failure;
2336 }
d91df0e3
PF		 2337 }
2338
b84e7a05
AQ		 2339 if (wdev->ssid_len) {
2340 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2341 goto nla_put_failure;
2342 }
2343
55682965
JB		 2344 return genlmsg_end(msg, hdr);
2345
2346 nla_put_failure:
bc3ed28c
TG		 2347 genlmsg_cancel(msg, hdr);
2348 return -EMSGSIZE;
55682965
JB		 2349}
2350
2351static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2352{
2353 int wp_idx = 0;
2354 int if_idx = 0;
2355 int wp_start = cb->args[0];
2356 int if_start = cb->args[1];
f5ea9120 2357 struct cfg80211_registered_device *rdev;
55682965
JB		 2358 struct wireless_dev *wdev;
2359
5fe231e8 2360 rtnl_lock();
f5ea9120
JB		 2361 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2362 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2363 continue;
bba95fef
JB		 2364 if (wp_idx < wp_start) {
2365 wp_idx++;
55682965 2366 continue;
bba95fef 2367 }
55682965
JB		 2368 if_idx = 0;
2369
89a54e48 2370 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2371 if (if_idx < if_start) {
2372 if_idx++;
55682965 2373 continue;
bba95fef 2374 }
15e47304 2375 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2376 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2377 rdev, wdev) < 0) {
bba95fef
JB		 2378 goto out;
2379 }
2380 if_idx++;
55682965 2381 }
bba95fef
JB		 2382
2383 wp_idx++;
55682965 2384 }
bba95fef 2385 out:
5fe231e8 2386 rtnl_unlock();
55682965
JB		 2387
2388 cb->args[0] = wp_idx;
2389 cb->args[1] = if_idx;
2390
2391 return skb->len;
2392}
2393
2394static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2395{
2396 struct sk_buff *msg;
1b8ec87a 2397 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2398 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2399
fd2120ca 2400 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2401 if (!msg)
4c476991 2402 return -ENOMEM;
55682965 2403
15e47304 2404 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2405 rdev, wdev) < 0) {
4c476991
JB		 2406 nlmsg_free(msg);
2407 return -ENOBUFS;
2408 }
55682965 2409
134e6375 2410 return genlmsg_reply(msg, info);
55682965
JB		 2411}
2412
66f7ac50
MW		 2413static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2414 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2415 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2416 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2417 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2418 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2419 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2420};
2421
2422static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2423{
2424 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2425 int flag;
2426
2427 *mntrflags = 0;
2428
2429 if (!nla)
2430 return -EINVAL;
2431
2432 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2433 nla, mntr_flags_policy))
2434 return -EINVAL;
2435
2436 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2437 if (flags[flag])
2438 *mntrflags |= (1<<flag);
2439
2440 return 0;
2441}
2442
9bc383de 2443static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2444 struct net_device *netdev, u8 use_4addr,
2445 enum nl80211_iftype iftype)
9bc383de 2446{
ad4bb6f8 2447 if (!use_4addr) {
f350a0a8 2448 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2449 return -EBUSY;
9bc383de 2450 return 0;
ad4bb6f8 2451 }
9bc383de
JB		 2452
2453 switch (iftype) {
2454 case NL80211_IFTYPE_AP_VLAN:
2455 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2456 return 0;
2457 break;
2458 case NL80211_IFTYPE_STATION:
2459 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2460 return 0;
2461 break;
2462 default:
2463 break;
2464 }
2465
2466 return -EOPNOTSUPP;
2467}
2468
55682965
JB		 2469static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2470{
4c476991 2471 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2472 struct vif_params params;
e36d56b6 2473 int err;
04a773ad 2474 enum nl80211_iftype otype, ntype;
4c476991 2475 struct net_device *dev = info->user_ptr[1];
92ffe055 2476 u32 _flags, *flags = NULL;
ac7f9cfa 2477 bool change = false;
55682965 2478
2ec600d6
LCC		 2479 memset(&params, 0, sizeof(params));
2480
04a773ad 2481 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2482
723b038d 2483 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2484 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2485 if (otype != ntype)
ac7f9cfa 2486 change = true;
4c476991
JB		 2487 if (ntype > NL80211_IFTYPE_MAX)
2488 return -EINVAL;
723b038d
JB		 2489 }
2490
92ffe055 2491 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2492 struct wireless_dev *wdev = dev->ieee80211_ptr;
2493
4c476991
JB		 2494 if (ntype != NL80211_IFTYPE_MESH_POINT)
2495 return -EINVAL;
29cbe68c
JB		 2496 if (netif_running(dev))
2497 return -EBUSY;
2498
2499 wdev_lock(wdev);
2500 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2501 IEEE80211_MAX_MESH_ID_LEN);
2502 wdev->mesh_id_up_len =
2503 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2504 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2505 wdev->mesh_id_up_len);
2506 wdev_unlock(wdev);
2ec600d6
LCC		 2507 }
2508
8b787643
FF		 2509 if (info->attrs[NL80211_ATTR_4ADDR]) {
2510 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2511 change = true;
ad4bb6f8 2512 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2513 if (err)
4c476991 2514 return err;
8b787643
FF		 2515 } else {
2516 params.use_4addr = -1;
2517 }
2518
92ffe055 2519 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2520 if (ntype != NL80211_IFTYPE_MONITOR)
2521 return -EINVAL;
92ffe055
JB		 2522 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2523 &_flags);
ac7f9cfa 2524 if (err)
4c476991 2525 return err;
ac7f9cfa
JB		 2526
2527 flags = &_flags;
2528 change = true;
92ffe055 2529 }
3b85875a 2530
18003297 2531 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2532 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2533 return -EOPNOTSUPP;
2534
ac7f9cfa 2535 if (change)
3d54d255 2536 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2537 else
2538 err = 0;
60719ffd 2539
9bc383de
JB		 2540 if (!err && params.use_4addr != -1)
2541 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2542
55682965
JB		 2543 return err;
2544}
2545
2546static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2547{
4c476991 2548 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2549 struct vif_params params;
84efbb84 2550 struct wireless_dev *wdev;
1c90f9d4 2551 struct sk_buff *msg;
55682965
JB		 2552 int err;
2553 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2554 u32 flags;
55682965 2555
78f22b6a
JB		 2556 /* to avoid failing a new interface creation due to pending removal */
2557 cfg80211_destroy_ifaces(rdev);
2558
2ec600d6
LCC		 2559 memset(&params, 0, sizeof(params));
2560
55682965
JB		 2561 if (!info->attrs[NL80211_ATTR_IFNAME])
2562 return -EINVAL;
2563
2564 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2565 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2566 if (type > NL80211_IFTYPE_MAX)
2567 return -EINVAL;
2568 }
2569
79c97e97 2570 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2571 !(rdev->wiphy.interface_modes & (1 << type)))
2572 return -EOPNOTSUPP;
55682965 2573
1c18f145
AS		 2574 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2575 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2576 ETH_ALEN);
2577 if (!is_valid_ether_addr(params.macaddr))
2578 return -EADDRNOTAVAIL;
2579 }
2580
9bc383de 2581 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2582 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2583 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2584 if (err)
4c476991 2585 return err;
9bc383de 2586 }
8b787643 2587
1c90f9d4
JB		 2588 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2589 if (!msg)
2590 return -ENOMEM;
2591
66f7ac50
MW		 2592 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2593 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2594 &flags);
e057d3c3 2595
18003297 2596 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2597 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2598 return -EOPNOTSUPP;
2599
e35e4d28
HG		 2600 wdev = rdev_add_virtual_intf(rdev,
2601 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2602 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2603 if (IS_ERR(wdev)) {
2604 nlmsg_free(msg);
84efbb84 2605 return PTR_ERR(wdev);
1c90f9d4 2606 }
2ec600d6 2607
78f22b6a
JB		 2608 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2609 wdev->owner_nlportid = info->snd_portid;
2610
98104fde
JB		 2611 switch (type) {
2612 case NL80211_IFTYPE_MESH_POINT:
2613 if (!info->attrs[NL80211_ATTR_MESH_ID])
2614 break;
29cbe68c
JB		 2615 wdev_lock(wdev);
2616 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2617 IEEE80211_MAX_MESH_ID_LEN);
2618 wdev->mesh_id_up_len =
2619 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2620 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2621 wdev->mesh_id_up_len);
2622 wdev_unlock(wdev);
98104fde
JB		 2623 break;
2624 case NL80211_IFTYPE_P2P_DEVICE:
2625 /*
2626 * P2P Device doesn't have a netdev, so doesn't go
2627 * through the netdev notifier and must be added here
2628 */
2629 mutex_init(&wdev->mtx);
2630 INIT_LIST_HEAD(&wdev->event_list);
2631 spin_lock_init(&wdev->event_lock);
2632 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2633 spin_lock_init(&wdev->mgmt_registrations_lock);
2634
98104fde
JB		 2635 wdev->identifier = ++rdev->wdev_id;
2636 list_add_rcu(&wdev->list, &rdev->wdev_list);
2637 rdev->devlist_generation++;
98104fde
JB		 2638 break;
2639 default:
2640 break;
29cbe68c
JB		 2641 }
2642
15e47304 2643 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2644 rdev, wdev) < 0) {
2645 nlmsg_free(msg);
2646 return -ENOBUFS;
2647 }
2648
2649 return genlmsg_reply(msg, info);
55682965
JB		 2650}
2651
2652static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2653{
4c476991 2654 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2655 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2656
4c476991
JB		 2657 if (!rdev->ops->del_virtual_intf)
2658 return -EOPNOTSUPP;
55682965 2659
84efbb84
JB		 2660 /*
2661 * If we remove a wireless device without a netdev then clear
2662 * user_ptr[1] so that nl80211_post_doit won't dereference it
2663 * to check if it needs to do dev_put(). Otherwise it crashes
2664 * since the wdev has been freed, unlike with a netdev where
2665 * we need the dev_put() for the netdev to really be freed.
2666 */
2667 if (!wdev->netdev)
2668 info->user_ptr[1] = NULL;
2669
e35e4d28 2670 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2671}
2672
1d9d9213
SW		 2673static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2674{
2675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2676 struct net_device *dev = info->user_ptr[1];
2677 u16 noack_map;
2678
2679 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2680 return -EINVAL;
2681
2682 if (!rdev->ops->set_noack_map)
2683 return -EOPNOTSUPP;
2684
2685 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2686
e35e4d28 2687 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2688}
2689
41ade00f
JB		 2690struct get_key_cookie {
2691 struct sk_buff *msg;
2692 int error;
b9454e83 2693 int idx;
41ade00f
JB		 2694};
2695
2696static void get_key_callback(void *c, struct key_params *params)
2697{
b9454e83 2698 struct nlattr *key;
41ade00f
JB		 2699 struct get_key_cookie *cookie = c;
2700
9360ffd1
DM		 2701 if ((params->key &&
2702 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2703 params->key_len, params->key)) ||
2704 (params->seq &&
2705 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2706 params->seq_len, params->seq)) ||
2707 (params->cipher &&
2708 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2709 params->cipher)))
2710 goto nla_put_failure;
41ade00f 2711
b9454e83
JB		 2712 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2713 if (!key)
2714 goto nla_put_failure;
2715
9360ffd1
DM		 2716 if ((params->key &&
2717 nla_put(cookie->msg, NL80211_KEY_DATA,
2718 params->key_len, params->key)) ||
2719 (params->seq &&
2720 nla_put(cookie->msg, NL80211_KEY_SEQ,
2721 params->seq_len, params->seq)) ||
2722 (params->cipher &&
2723 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2724 params->cipher)))
2725 goto nla_put_failure;
b9454e83 2726
9360ffd1
DM		 2727 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2728 goto nla_put_failure;
b9454e83
JB		 2729
2730 nla_nest_end(cookie->msg, key);
2731
41ade00f
JB		 2732 return;
2733 nla_put_failure:
2734 cookie->error = 1;
2735}
2736
2737static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2738{
4c476991 2739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2740 int err;
4c476991 2741 struct net_device *dev = info->user_ptr[1];
41ade00f 2742 u8 key_idx = 0;
e31b8213
JB		 2743 const u8 *mac_addr = NULL;
2744 bool pairwise;
41ade00f
JB		 2745 struct get_key_cookie cookie = {
2746 .error = 0,
2747 };
2748 void *hdr;
2749 struct sk_buff *msg;
2750
2751 if (info->attrs[NL80211_ATTR_KEY_IDX])
2752 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2753
3cfcf6ac 2754 if (key_idx > 5)
41ade00f
JB		 2755 return -EINVAL;
2756
2757 if (info->attrs[NL80211_ATTR_MAC])
2758 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2759
e31b8213
JB		 2760 pairwise = !!mac_addr;
2761 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2762 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2763 if (kt >= NUM_NL80211_KEYTYPES)
2764 return -EINVAL;
2765 if (kt != NL80211_KEYTYPE_GROUP &&
2766 kt != NL80211_KEYTYPE_PAIRWISE)
2767 return -EINVAL;
2768 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2769 }
2770
4c476991
JB		 2771 if (!rdev->ops->get_key)
2772 return -EOPNOTSUPP;
41ade00f 2773
fd2120ca 2774 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2775 if (!msg)
2776 return -ENOMEM;
41ade00f 2777
15e47304 2778 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2779 NL80211_CMD_NEW_KEY);
cb35fba3 2780 if (!hdr)
9fe271af 2781 goto nla_put_failure;
41ade00f
JB		 2782
2783 cookie.msg = msg;
b9454e83 2784 cookie.idx = key_idx;
41ade00f 2785
9360ffd1
DM		 2786 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2787 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2788 goto nla_put_failure;
2789 if (mac_addr &&
2790 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2791 goto nla_put_failure;
41ade00f 2792
e31b8213
JB		 2793 if (pairwise && mac_addr &&
2794 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2795 return -ENOENT;
2796
e35e4d28
HG		 2797 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2798 get_key_callback);
41ade00f
JB		 2799
2800 if (err)
6c95e2a2 2801 goto free_msg;
41ade00f
JB		 2802
2803 if (cookie.error)
2804 goto nla_put_failure;
2805
2806 genlmsg_end(msg, hdr);
4c476991 2807 return genlmsg_reply(msg, info);
41ade00f
JB		 2808
2809 nla_put_failure:
2810 err = -ENOBUFS;
6c95e2a2 2811 free_msg:
41ade00f 2812 nlmsg_free(msg);
41ade00f
JB		 2813 return err;
2814}
2815
2816static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2817{
4c476991 2818 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2819 struct key_parse key;
41ade00f 2820 int err;
4c476991 2821 struct net_device *dev = info->user_ptr[1];
41ade00f 2822
b9454e83
JB		 2823 err = nl80211_parse_key(info, &key);
2824 if (err)
2825 return err;
41ade00f 2826
b9454e83 2827 if (key.idx < 0)
41ade00f
JB		 2828 return -EINVAL;
2829
b9454e83
JB		 2830 /* only support setting default key */
2831 if (!key.def && !key.defmgmt)
41ade00f
JB		 2832 return -EINVAL;
2833
dbd2fd65 2834 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2835
dbd2fd65
JB		 2836 if (key.def) {
2837 if (!rdev->ops->set_default_key) {
2838 err = -EOPNOTSUPP;
2839 goto out;
2840 }
41ade00f 2841
dbd2fd65
JB		 2842 err = nl80211_key_allowed(dev->ieee80211_ptr);
2843 if (err)
2844 goto out;
2845
e35e4d28 2846 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2847 key.def_uni, key.def_multi);
2848
2849 if (err)
2850 goto out;
fffd0934 2851
3d23e349 2852#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2853 dev->ieee80211_ptr->wext.default_key = key.idx;
2854#endif
2855 } else {
2856 if (key.def_uni || !key.def_multi) {
2857 err = -EINVAL;
2858 goto out;
2859 }
2860
2861 if (!rdev->ops->set_default_mgmt_key) {
2862 err = -EOPNOTSUPP;
2863 goto out;
2864 }
2865
2866 err = nl80211_key_allowed(dev->ieee80211_ptr);
2867 if (err)
2868 goto out;
2869
e35e4d28 2870 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2871 if (err)
2872 goto out;
2873
2874#ifdef CONFIG_CFG80211_WEXT
2875 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2876#endif
dbd2fd65
JB		 2877 }
2878
2879 out:
fffd0934 2880 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2881
41ade00f
JB		 2882 return err;
2883}
2884
2885static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2886{
4c476991 2887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2888 int err;
4c476991 2889 struct net_device *dev = info->user_ptr[1];
b9454e83 2890 struct key_parse key;
e31b8213 2891 const u8 *mac_addr = NULL;
41ade00f 2892
b9454e83
JB		 2893 err = nl80211_parse_key(info, &key);
2894 if (err)
2895 return err;
41ade00f 2896
b9454e83 2897 if (!key.p.key)
41ade00f
JB		 2898 return -EINVAL;
2899
41ade00f
JB		 2900 if (info->attrs[NL80211_ATTR_MAC])
2901 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2902
e31b8213
JB		 2903 if (key.type == -1) {
2904 if (mac_addr)
2905 key.type = NL80211_KEYTYPE_PAIRWISE;
2906 else
2907 key.type = NL80211_KEYTYPE_GROUP;
2908 }
2909
2910 /* for now */
2911 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2912 key.type != NL80211_KEYTYPE_GROUP)
2913 return -EINVAL;
2914
4c476991
JB		 2915 if (!rdev->ops->add_key)
2916 return -EOPNOTSUPP;
25e47c18 2917
e31b8213
JB		 2918 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2919 key.type == NL80211_KEYTYPE_PAIRWISE,
2920 mac_addr))
4c476991 2921 return -EINVAL;
41ade00f 2922
fffd0934
JB		 2923 wdev_lock(dev->ieee80211_ptr);
2924 err = nl80211_key_allowed(dev->ieee80211_ptr);
2925 if (!err)
e35e4d28
HG		 2926 err = rdev_add_key(rdev, dev, key.idx,
2927 key.type == NL80211_KEYTYPE_PAIRWISE,
2928 mac_addr, &key.p);
fffd0934 2929 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2930
41ade00f
JB		 2931 return err;
2932}
2933
2934static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2935{
4c476991 2936 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2937 int err;
4c476991 2938 struct net_device *dev = info->user_ptr[1];
41ade00f 2939 u8 *mac_addr = NULL;
b9454e83 2940 struct key_parse key;
41ade00f 2941
b9454e83
JB		 2942 err = nl80211_parse_key(info, &key);
2943 if (err)
2944 return err;
41ade00f
JB		 2945
2946 if (info->attrs[NL80211_ATTR_MAC])
2947 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2948
e31b8213
JB		 2949 if (key.type == -1) {
2950 if (mac_addr)
2951 key.type = NL80211_KEYTYPE_PAIRWISE;
2952 else
2953 key.type = NL80211_KEYTYPE_GROUP;
2954 }
2955
2956 /* for now */
2957 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2958 key.type != NL80211_KEYTYPE_GROUP)
2959 return -EINVAL;
2960
4c476991
JB		 2961 if (!rdev->ops->del_key)
2962 return -EOPNOTSUPP;
41ade00f 2963
fffd0934
JB		 2964 wdev_lock(dev->ieee80211_ptr);
2965 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2966
2967 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2968 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2969 err = -ENOENT;
2970
fffd0934 2971 if (!err)
e35e4d28
HG		 2972 err = rdev_del_key(rdev, dev, key.idx,
2973 key.type == NL80211_KEYTYPE_PAIRWISE,
2974 mac_addr);
41ade00f 2975
3d23e349 2976#ifdef CONFIG_CFG80211_WEXT
08645126 2977 if (!err) {
b9454e83 2978 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2979 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2980 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2981 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2982 }
2983#endif
fffd0934 2984 wdev_unlock(dev->ieee80211_ptr);
08645126 2985
41ade00f
JB		 2986 return err;
2987}
2988
77765eaf
VT		 2989/* This function returns an error or the number of nested attributes */
2990static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2991{
2992 struct nlattr *attr;
2993 int n_entries = 0, tmp;
2994
2995 nla_for_each_nested(attr, nl_attr, tmp) {
2996 if (nla_len(attr) != ETH_ALEN)
2997 return -EINVAL;
2998
2999 n_entries++;
3000 }
3001
3002 return n_entries;
3003}
3004
3005/*
3006 * This function parses ACL information and allocates memory for ACL data.
3007 * On successful return, the calling function is responsible to free the
3008 * ACL buffer returned by this function.
3009 */
3010static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3011 struct genl_info *info)
3012{
3013 enum nl80211_acl_policy acl_policy;
3014 struct nlattr *attr;
3015 struct cfg80211_acl_data *acl;
3016 int i = 0, n_entries, tmp;
3017
3018 if (!wiphy->max_acl_mac_addrs)
3019 return ERR_PTR(-EOPNOTSUPP);
3020
3021 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3022 return ERR_PTR(-EINVAL);
3023
3024 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3025 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3026 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3027 return ERR_PTR(-EINVAL);
3028
3029 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3030 return ERR_PTR(-EINVAL);
3031
3032 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3033 if (n_entries < 0)
3034 return ERR_PTR(n_entries);
3035
3036 if (n_entries > wiphy->max_acl_mac_addrs)
3037 return ERR_PTR(-ENOTSUPP);
3038
3039 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3040 GFP_KERNEL);
3041 if (!acl)
3042 return ERR_PTR(-ENOMEM);
3043
3044 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3045 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3046 i++;
3047 }
3048
3049 acl->n_acl_entries = n_entries;
3050 acl->acl_policy = acl_policy;
3051
3052 return acl;
3053}
3054
3055static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3056{
3057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3058 struct net_device *dev = info->user_ptr[1];
3059 struct cfg80211_acl_data *acl;
3060 int err;
3061
3062 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3063 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3064 return -EOPNOTSUPP;
3065
3066 if (!dev->ieee80211_ptr->beacon_interval)
3067 return -EINVAL;
3068
3069 acl = parse_acl_data(&rdev->wiphy, info);
3070 if (IS_ERR(acl))
3071 return PTR_ERR(acl);
3072
3073 err = rdev_set_mac_acl(rdev, dev, acl);
3074
3075 kfree(acl);
3076
3077 return err;
3078}
3079
a1193be8 3080static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3081 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3082{
8860020e 3083 bool haveinfo = false;
ed1b6cc7 3084
a1193be8
SW		 3085 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3086 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3087 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3088 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3089 return -EINVAL;
3090
8860020e 3091 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3092
a1193be8
SW		 3093 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3094 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3095 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3096 if (!bcn->head_len)
3097 return -EINVAL;
3098 haveinfo = true;
ed1b6cc7
JB		 3099 }
3100
a1193be8
SW		 3101 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3102 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3103 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3104 haveinfo = true;
ed1b6cc7
JB		 3105 }
3106
4c476991
JB		 3107 if (!haveinfo)
3108 return -EINVAL;
3b85875a 3109
a1193be8
SW		 3110 if (attrs[NL80211_ATTR_IE]) {
3111 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3112 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3113 }
3114
a1193be8 3115 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3116 bcn->proberesp_ies =
a1193be8 3117 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3118 bcn->proberesp_ies_len =
a1193be8 3119 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3120 }
3121
a1193be8 3122 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3123 bcn->assocresp_ies =
a1193be8 3124 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3125 bcn->assocresp_ies_len =
a1193be8 3126 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3127 }
3128
a1193be8
SW		 3129 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3130 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3131 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3132 }
3133
8860020e
JB		 3134 return 0;
3135}
3136
46c1dd0c
FF		 3137static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3138 struct cfg80211_ap_settings *params)
3139{
3140 struct wireless_dev *wdev;
3141 bool ret = false;
3142
89a54e48 3143 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3144 if (wdev->iftype != NL80211_IFTYPE_AP &&
3145 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3146 continue;
3147
683b6d3b 3148 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3149 continue;
3150
683b6d3b 3151 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3152 ret = true;
3153 break;
3154 }
3155
46c1dd0c
FF		 3156 return ret;
3157}
3158
e39e5b5e
JM		 3159static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3160 enum nl80211_auth_type auth_type,
3161 enum nl80211_commands cmd)
3162{
3163 if (auth_type > NL80211_AUTHTYPE_MAX)
3164 return false;
3165
3166 switch (cmd) {
3167 case NL80211_CMD_AUTHENTICATE:
3168 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3169 auth_type == NL80211_AUTHTYPE_SAE)
3170 return false;
3171 return true;
3172 case NL80211_CMD_CONNECT:
3173 case NL80211_CMD_START_AP:
3174 /* SAE not supported yet */
3175 if (auth_type == NL80211_AUTHTYPE_SAE)
3176 return false;
3177 return true;
3178 default:
3179 return false;
3180 }
3181}
3182
8860020e
JB		 3183static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3184{
3185 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3186 struct net_device *dev = info->user_ptr[1];
3187 struct wireless_dev *wdev = dev->ieee80211_ptr;
3188 struct cfg80211_ap_settings params;
3189 int err;
3190
3191 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3192 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3193 return -EOPNOTSUPP;
3194
3195 if (!rdev->ops->start_ap)
3196 return -EOPNOTSUPP;
3197
3198 if (wdev->beacon_interval)
3199 return -EALREADY;
3200
3201 memset(&params, 0, sizeof(params));
3202
3203 /* these are required for START_AP */
3204 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3205 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3206 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3207 return -EINVAL;
3208
a1193be8 3209 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3210 if (err)
3211 return err;
3212
3213 params.beacon_interval =
3214 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3215 params.dtim_period =
3216 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3217
3218 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3219 if (err)
3220 return err;
3221
3222 /*
3223 * In theory, some of these attributes should be required here
3224 * but since they were not used when the command was originally
3225 * added, keep them optional for old user space programs to let
3226 * them continue to work with drivers that do not need the
3227 * additional information -- drivers must check!
3228 */
3229 if (info->attrs[NL80211_ATTR_SSID]) {
3230 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3231 params.ssid_len =
3232 nla_len(info->attrs[NL80211_ATTR_SSID]);
3233 if (params.ssid_len == 0 ||
3234 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3235 return -EINVAL;
3236 }
3237
3238 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3239 params.hidden_ssid = nla_get_u32(
3240 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3241 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3242 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3243 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3244 return -EINVAL;
3245 }
3246
3247 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3248
3249 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3250 params.auth_type = nla_get_u32(
3251 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3252 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3253 NL80211_CMD_START_AP))
8860020e
JB		 3254 return -EINVAL;
3255 } else
3256 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3257
3258 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3259 NL80211_MAX_NR_CIPHER_SUITES);
3260 if (err)
3261 return err;
3262
1b658f11
VT		 3263 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3264 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3265 return -EOPNOTSUPP;
3266 params.inactivity_timeout = nla_get_u16(
3267 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3268 }
3269
53cabad7
JB		 3270 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3271 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3272 return -EINVAL;
3273 params.p2p_ctwindow =
3274 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3275 if (params.p2p_ctwindow > 127)
3276 return -EINVAL;
3277 if (params.p2p_ctwindow != 0 &&
3278 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3279 return -EINVAL;
3280 }
3281
3282 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3283 u8 tmp;
3284
3285 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3286 return -EINVAL;
3287 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3288 if (tmp > 1)
3289 return -EINVAL;
3290 params.p2p_opp_ps = tmp;
3291 if (params.p2p_opp_ps != 0 &&
3292 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3293 return -EINVAL;
3294 }
3295
aa430da4 3296 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3297 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3298 if (err)
3299 return err;
3300 } else if (wdev->preset_chandef.chan) {
3301 params.chandef = wdev->preset_chandef;
46c1dd0c 3302 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3303 return -EINVAL;
3304
174e0cd2
IP		 3305 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3306 wdev->iftype))
aa430da4
JB		 3307 return -EINVAL;
3308
77765eaf
VT		 3309 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3310 params.acl = parse_acl_data(&rdev->wiphy, info);
3311 if (IS_ERR(params.acl))
3312 return PTR_ERR(params.acl);
3313 }
3314
c56589ed 3315 wdev_lock(wdev);
e35e4d28 3316 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3317 if (!err) {
683b6d3b 3318 wdev->preset_chandef = params.chandef;
8860020e 3319 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3320 wdev->chandef = params.chandef;
06e191e2
AQ		 3321 wdev->ssid_len = params.ssid_len;
3322 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3323 }
c56589ed 3324 wdev_unlock(wdev);
77765eaf
VT		 3325
3326 kfree(params.acl);
3327
56d1893d 3328 return err;
ed1b6cc7
JB		 3329}
3330
8860020e
JB		 3331static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3332{
3333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3334 struct net_device *dev = info->user_ptr[1];
3335 struct wireless_dev *wdev = dev->ieee80211_ptr;
3336 struct cfg80211_beacon_data params;
3337 int err;
3338
3339 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3340 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3341 return -EOPNOTSUPP;
3342
3343 if (!rdev->ops->change_beacon)
3344 return -EOPNOTSUPP;
3345
3346 if (!wdev->beacon_interval)
3347 return -EINVAL;
3348
a1193be8 3349 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3350 if (err)
3351 return err;
3352
c56589ed
SW		 3353 wdev_lock(wdev);
3354 err = rdev_change_beacon(rdev, dev, &params);
3355 wdev_unlock(wdev);
3356
3357 return err;
8860020e
JB		 3358}
3359
3360static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3361{
4c476991
JB		 3362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3363 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3364
7c8d5e03 3365 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3366}
3367
5727ef1b
JB		 3368static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3369 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3370 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3371 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3372 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3373 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3374 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3375};
3376
eccb8e8f 3377static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3378 enum nl80211_iftype iftype,
eccb8e8f 3379 struct station_parameters *params)
5727ef1b
JB		 3380{
3381 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3382 struct nlattr *nla;
5727ef1b
JB		 3383 int flag;
3384
eccb8e8f
JB		 3385 /*
3386 * Try parsing the new attribute first so userspace
3387 * can specify both for older kernels.
3388 */
3389 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3390 if (nla) {
3391 struct nl80211_sta_flag_update *sta_flags;
3392
3393 sta_flags = nla_data(nla);
3394 params->sta_flags_mask = sta_flags->mask;
3395 params->sta_flags_set = sta_flags->set;
77ee7c89 3396 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3397 if ((params->sta_flags_mask |
3398 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3399 return -EINVAL;
3400 return 0;
3401 }
3402
3403 /* if present, parse the old attribute */
5727ef1b 3404
eccb8e8f 3405 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3406 if (!nla)
3407 return 0;
3408
3409 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3410 nla, sta_flags_policy))
3411 return -EINVAL;
3412
bdd3ae3d
JB		 3413 /*
3414 * Only allow certain flags for interface types so that
3415 * other attributes are silently ignored. Remember that
3416 * this is backward compatibility code with old userspace
3417 * and shouldn't be hit in other cases anyway.
3418 */
3419 switch (iftype) {
3420 case NL80211_IFTYPE_AP:
3421 case NL80211_IFTYPE_AP_VLAN:
3422 case NL80211_IFTYPE_P2P_GO:
3423 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3424 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3425 BIT(NL80211_STA_FLAG_WME) |
3426 BIT(NL80211_STA_FLAG_MFP);
3427 break;
3428 case NL80211_IFTYPE_P2P_CLIENT:
3429 case NL80211_IFTYPE_STATION:
3430 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3431 BIT(NL80211_STA_FLAG_TDLS_PEER);
3432 break;
3433 case NL80211_IFTYPE_MESH_POINT:
3434 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3435 BIT(NL80211_STA_FLAG_MFP) |
3436 BIT(NL80211_STA_FLAG_AUTHORIZED);
3437 default:
3438 return -EINVAL;
3439 }
5727ef1b 3440
3383b5a6
JB		 3441 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3442 if (flags[flag]) {
eccb8e8f 3443 params->sta_flags_set |= (1<<flag);
5727ef1b 3444
3383b5a6
JB		 3445 /* no longer support new API additions in old API */
3446 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3447 return -EINVAL;
3448 }
3449 }
3450
5727ef1b
JB		 3451 return 0;
3452}
3453
c8dcfd8a
FF		 3454static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3455 int attr)
3456{
3457 struct nlattr *rate;
8eb41c8d
VK		 3458 u32 bitrate;
3459 u16 bitrate_compat;
c8dcfd8a
FF		 3460
3461 rate = nla_nest_start(msg, attr);
3462 if (!rate)
db9c64cf 3463 return false;
c8dcfd8a
FF		 3464
3465 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3466 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3467 /* report 16-bit bitrate only if we can */
3468 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3469 if (bitrate > 0 &&
3470 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3471 return false;
3472 if (bitrate_compat > 0 &&
3473 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3474 return false;
3475
3476 if (info->flags & RATE_INFO_FLAGS_MCS) {
3477 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3478 return false;
3479 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3480 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3481 return false;
3482 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3483 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3484 return false;
3485 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3486 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3487 return false;
3488 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3489 return false;
3490 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3491 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3492 return false;
3493 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3494 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3495 return false;
3496 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3497 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3498 return false;
3499 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3500 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3501 return false;
3502 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3503 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3504 return false;
3505 }
c8dcfd8a
FF		 3506
3507 nla_nest_end(msg, rate);
3508 return true;
c8dcfd8a
FF		 3509}
3510
119363c7
FF		 3511static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3512 int id)
3513{
3514 void *attr;
3515 int i = 0;
3516
3517 if (!mask)
3518 return true;
3519
3520 attr = nla_nest_start(msg, id);
3521 if (!attr)
3522 return false;
3523
3524 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3525 if (!(mask & BIT(i)))
3526 continue;
3527
3528 if (nla_put_u8(msg, i, signal[i]))
3529 return false;
3530 }
3531
3532 nla_nest_end(msg, attr);
3533
3534 return true;
3535}
3536
15e47304 3537static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3538 int flags,
3539 struct cfg80211_registered_device *rdev,
3540 struct net_device *dev,
98b62183 3541 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3542{
3543 void *hdr;
f4263c98 3544 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3545
15e47304 3546 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3547 if (!hdr)
3548 return -1;
3549
9360ffd1
DM		 3550 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3551 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3552 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3553 goto nla_put_failure;
f5ea9120 3554
2ec600d6
LCC		 3555 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3556 if (!sinfoattr)
fd5b74dc 3557 goto nla_put_failure;
9360ffd1
DM		 3558 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3559 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3560 sinfo->connected_time))
3561 goto nla_put_failure;
3562 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3563 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3564 sinfo->inactive_time))
3565 goto nla_put_failure;
42745e03
VK		 3566 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3567 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3568 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3569 (u32)sinfo->rx_bytes))
9360ffd1 3570 goto nla_put_failure;
42745e03 3571 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3572 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3573 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3574 (u32)sinfo->tx_bytes))
3575 goto nla_put_failure;
3576 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3577 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3578 sinfo->rx_bytes))
3579 goto nla_put_failure;
3580 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3581 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3582 sinfo->tx_bytes))
3583 goto nla_put_failure;
3584 if ((sinfo->filled & STATION_INFO_LLID) &&
3585 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3586 goto nla_put_failure;
3587 if ((sinfo->filled & STATION_INFO_PLID) &&
3588 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3589 goto nla_put_failure;
3590 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3591 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3592 sinfo->plink_state))
3593 goto nla_put_failure;
66266b3a
JL		 3594 switch (rdev->wiphy.signal_type) {
3595 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3596 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3597 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3598 sinfo->signal))
3599 goto nla_put_failure;
3600 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3601 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3602 sinfo->signal_avg))
3603 goto nla_put_failure;
66266b3a
JL		 3604 break;
3605 default:
3606 break;
3607 }
119363c7
FF		 3608 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3609 if (!nl80211_put_signal(msg, sinfo->chains,
3610 sinfo->chain_signal,
3611 NL80211_STA_INFO_CHAIN_SIGNAL))
3612 goto nla_put_failure;
3613 }
3614 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3615 if (!nl80211_put_signal(msg, sinfo->chains,
3616 sinfo->chain_signal_avg,
3617 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3618 goto nla_put_failure;
3619 }
420e7fab 3620 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3621 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3622 NL80211_STA_INFO_TX_BITRATE))
3623 goto nla_put_failure;
3624 }
3625 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3626 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3627 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3628 goto nla_put_failure;
420e7fab 3629 }
9360ffd1
DM		 3630 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3631 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3632 sinfo->rx_packets))
3633 goto nla_put_failure;
3634 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3635 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3636 sinfo->tx_packets))
3637 goto nla_put_failure;
3638 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3639 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3640 sinfo->tx_retries))
3641 goto nla_put_failure;
3642 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3643 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3644 sinfo->tx_failed))
3645 goto nla_put_failure;
3646 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3647 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3648 sinfo->beacon_loss_count))
3649 goto nla_put_failure;
3b1c5a53
MP		 3650 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3651 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3652 sinfo->local_pm))
3653 goto nla_put_failure;
3654 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3655 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3656 sinfo->peer_pm))
3657 goto nla_put_failure;
3658 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3659 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3660 sinfo->nonpeer_pm))
3661 goto nla_put_failure;
f4263c98
PS		 3662 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3663 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3664 if (!bss_param)
3665 goto nla_put_failure;
3666
9360ffd1
DM		 3667 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3668 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3669 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3670 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3671 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3672 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3673 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3674 sinfo->bss_param.dtim_period) ||
3675 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3676 sinfo->bss_param.beacon_interval))
3677 goto nla_put_failure;
f4263c98
PS		 3678
3679 nla_nest_end(msg, bss_param);
3680 }
9360ffd1
DM		 3681 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3682 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3683 sizeof(struct nl80211_sta_flag_update),
3684 &sinfo->sta_flags))
3685 goto nla_put_failure;
7eab0f64
JL		 3686 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3687 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3688 sinfo->t_offset))
3689 goto nla_put_failure;
2ec600d6 3690 nla_nest_end(msg, sinfoattr);
fd5b74dc 3691
9360ffd1
DM		 3692 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3693 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3694 sinfo->assoc_req_ies))
3695 goto nla_put_failure;
50d3dfb7 3696
fd5b74dc
JB		 3697 return genlmsg_end(msg, hdr);
3698
3699 nla_put_failure:
bc3ed28c
TG		 3700 genlmsg_cancel(msg, hdr);
3701 return -EMSGSIZE;
fd5b74dc
JB		 3702}
3703
2ec600d6 3704static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3705 struct netlink_callback *cb)
2ec600d6 3706{
2ec600d6 3707 struct station_info sinfo;
1b8ec87a 3708 struct cfg80211_registered_device *rdev;
97990a06 3709 struct wireless_dev *wdev;
2ec600d6 3710 u8 mac_addr[ETH_ALEN];
97990a06 3711 int sta_idx = cb->args[2];
2ec600d6 3712 int err;
2ec600d6 3713
1b8ec87a 3714 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3715 if (err)
3716 return err;
bba95fef 3717
97990a06
JB		 3718 if (!wdev->netdev) {
3719 err = -EINVAL;
3720 goto out_err;
3721 }
3722
1b8ec87a 3723 if (!rdev->ops->dump_station) {
eec60b03 3724 err = -EOPNOTSUPP;
bba95fef
JB		 3725 goto out_err;
3726 }
3727
bba95fef 3728 while (1) {
f612cedf 3729 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3730 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3731 mac_addr, &sinfo);
bba95fef
JB		 3732 if (err == -ENOENT)
3733 break;
3734 if (err)
3b85875a 3735 goto out_err;
bba95fef
JB		 3736
3737 if (nl80211_send_station(skb,
15e47304 3738 NETLINK_CB(cb->skb).portid,
bba95fef 3739 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3740 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3741 &sinfo) < 0)
3742 goto out;
3743
3744 sta_idx++;
3745 }
3746
3747
3748 out:
97990a06 3749 cb->args[2] = sta_idx;
bba95fef 3750 err = skb->len;
bba95fef 3751 out_err:
1b8ec87a 3752 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3753
3754 return err;
2ec600d6 3755}
fd5b74dc 3756
5727ef1b
JB		 3757static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3758{
4c476991
JB		 3759 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3760 struct net_device *dev = info->user_ptr[1];
2ec600d6 3761 struct station_info sinfo;
fd5b74dc
JB		 3762 struct sk_buff *msg;
3763 u8 *mac_addr = NULL;
4c476991 3764 int err;
fd5b74dc 3765
2ec600d6 3766 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3767
3768 if (!info->attrs[NL80211_ATTR_MAC])
3769 return -EINVAL;
3770
3771 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3772
4c476991
JB		 3773 if (!rdev->ops->get_station)
3774 return -EOPNOTSUPP;
3b85875a 3775
e35e4d28 3776 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3777 if (err)
4c476991 3778 return err;
2ec600d6 3779
fd2120ca 3780 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3781 if (!msg)
4c476991 3782 return -ENOMEM;
fd5b74dc 3783
15e47304 3784 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3785 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3786 nlmsg_free(msg);
3787 return -ENOBUFS;
3788 }
3b85875a 3789
4c476991 3790 return genlmsg_reply(msg, info);
5727ef1b
JB		 3791}
3792
77ee7c89
JB		 3793int cfg80211_check_station_change(struct wiphy *wiphy,
3794 struct station_parameters *params,
3795 enum cfg80211_station_type statype)
3796{
3797 if (params->listen_interval != -1)
3798 return -EINVAL;
3799 if (params->aid)
3800 return -EINVAL;
3801
3802 /* When you run into this, adjust the code below for the new flag */
3803 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3804
3805 switch (statype) {
eef941e6
TP		 3806 case CFG80211_STA_MESH_PEER_KERNEL:
3807 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3808 /*
3809 * No ignoring the TDLS flag here -- the userspace mesh
3810 * code doesn't have the bug of including TDLS in the
3811 * mask everywhere.
3812 */
3813 if (params->sta_flags_mask &
3814 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3815 BIT(NL80211_STA_FLAG_MFP) |
3816 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3817 return -EINVAL;
3818 break;
3819 case CFG80211_STA_TDLS_PEER_SETUP:
3820 case CFG80211_STA_TDLS_PEER_ACTIVE:
3821 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3822 return -EINVAL;
3823 /* ignore since it can't change */
3824 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3825 break;
3826 default:
3827 /* disallow mesh-specific things */
3828 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3829 return -EINVAL;
3830 if (params->local_pm)
3831 return -EINVAL;
3832 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3833 return -EINVAL;
3834 }
3835
3836 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3837 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3838 /* TDLS can't be set, ... */
3839 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3840 return -EINVAL;
3841 /*
3842 * ... but don't bother the driver with it. This works around
3843 * a hostapd/wpa_supplicant issue -- it always includes the
3844 * TLDS_PEER flag in the mask even for AP mode.
3845 */
3846 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3847 }
3848
3849 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3850 /* reject other things that can't change */
3851 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3852 return -EINVAL;
3853 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3854 return -EINVAL;
3855 if (params->supported_rates)
3856 return -EINVAL;
3857 if (params->ext_capab || params->ht_capa || params->vht_capa)
3858 return -EINVAL;
3859 }
3860
3861 if (statype != CFG80211_STA_AP_CLIENT) {
3862 if (params->vlan)
3863 return -EINVAL;
3864 }
3865
3866 switch (statype) {
3867 case CFG80211_STA_AP_MLME_CLIENT:
3868 /* Use this only for authorizing/unauthorizing a station */
3869 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3870 return -EOPNOTSUPP;
3871 break;
3872 case CFG80211_STA_AP_CLIENT:
3873 /* accept only the listed bits */
3874 if (params->sta_flags_mask &
3875 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3876 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3877 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3878 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3879 BIT(NL80211_STA_FLAG_WME) |
3880 BIT(NL80211_STA_FLAG_MFP)))
3881 return -EINVAL;
3882
3883 /* but authenticated/associated only if driver handles it */
3884 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3885 params->sta_flags_mask &
3886 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3887 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3888 return -EINVAL;
3889 break;
3890 case CFG80211_STA_IBSS:
3891 case CFG80211_STA_AP_STA:
3892 /* reject any changes other than AUTHORIZED */
3893 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3894 return -EINVAL;
3895 break;
3896 case CFG80211_STA_TDLS_PEER_SETUP:
3897 /* reject any changes other than AUTHORIZED or WME */
3898 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3899 BIT(NL80211_STA_FLAG_WME)))
3900 return -EINVAL;
3901 /* force (at least) rates when authorizing */
3902 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3903 !params->supported_rates)
3904 return -EINVAL;
3905 break;
3906 case CFG80211_STA_TDLS_PEER_ACTIVE:
3907 /* reject any changes */
3908 return -EINVAL;
eef941e6 3909 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3910 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3911 return -EINVAL;
3912 break;
eef941e6 3913 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3914 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3915 return -EINVAL;
3916 break;
3917 }
3918
3919 return 0;
3920}
3921EXPORT_SYMBOL(cfg80211_check_station_change);
3922
5727ef1b 3923/*
c258d2de 3924 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3925 */
80b99899
JB		 3926static struct net_device *get_vlan(struct genl_info *info,
3927 struct cfg80211_registered_device *rdev)
5727ef1b 3928{
463d0183 3929 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3930 struct net_device *v;
3931 int ret;
3932
3933 if (!vlanattr)
3934 return NULL;
3935
3936 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3937 if (!v)
3938 return ERR_PTR(-ENODEV);
3939
3940 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3941 ret = -EINVAL;
3942 goto error;
5727ef1b 3943 }
80b99899 3944
77ee7c89
JB		 3945 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3946 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3947 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3948 ret = -EINVAL;
3949 goto error;
3950 }
3951
80b99899
JB		 3952 if (!netif_running(v)) {
3953 ret = -ENETDOWN;
3954 goto error;
3955 }
3956
3957 return v;
3958 error:
3959 dev_put(v);
3960 return ERR_PTR(ret);
5727ef1b
JB		 3961}
3962
94e860f1
JB		 3963static const struct nla_policy
3964nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 3965 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3966 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3967};
3968
ff276691
JB		 3969static int nl80211_parse_sta_wme(struct genl_info *info,
3970 struct station_parameters *params)
df881293 3971{
df881293
JM		 3972 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3973 struct nlattr *nla;
3974 int err;
3975
df881293
JM		 3976 /* parse WME attributes if present */
3977 if (!info->attrs[NL80211_ATTR_STA_WME])
3978 return 0;
3979
3980 nla = info->attrs[NL80211_ATTR_STA_WME];
3981 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3982 nl80211_sta_wme_policy);
3983 if (err)
3984 return err;
3985
3986 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3987 params->uapsd_queues = nla_get_u8(
3988 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3989 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3990 return -EINVAL;
3991
3992 if (tb[NL80211_STA_WME_MAX_SP])
3993 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3994
3995 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3996 return -EINVAL;
3997
3998 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3999
4000 return 0;
4001}
4002
c01fc9ad
SD		 4003static int nl80211_parse_sta_channel_info(struct genl_info *info,
4004 struct station_parameters *params)
4005{
4006 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4007 params->supported_channels =
4008 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4009 params->supported_channels_len =
4010 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4011 /*
4012 * Need to include at least one (first channel, number of
4013 * channels) tuple for each subband, and must have proper
4014 * tuples for the rest of the data as well.
4015 */
4016 if (params->supported_channels_len < 2)
4017 return -EINVAL;
4018 if (params->supported_channels_len % 2)
4019 return -EINVAL;
4020 }
4021
4022 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4023 params->supported_oper_classes =
4024 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4025 params->supported_oper_classes_len =
4026 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4027 /*
4028 * The value of the Length field of the Supported Operating
4029 * Classes element is between 2 and 253.
4030 */
4031 if (params->supported_oper_classes_len < 2 ||
4032 params->supported_oper_classes_len > 253)
4033 return -EINVAL;
4034 }
4035 return 0;
4036}
4037
ff276691
JB		 4038static int nl80211_set_station_tdls(struct genl_info *info,
4039 struct station_parameters *params)
4040{
c01fc9ad 4041 int err;
ff276691 4042 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4043 if (info->attrs[NL80211_ATTR_PEER_AID])
4044 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4045 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4046 params->ht_capa =
4047 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4048 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4049 params->vht_capa =
4050 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4051
c01fc9ad
SD		 4052 err = nl80211_parse_sta_channel_info(info, params);
4053 if (err)
4054 return err;
4055
ff276691
JB		 4056 return nl80211_parse_sta_wme(info, params);
4057}
4058
5727ef1b
JB		 4059static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4060{
4c476991 4061 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4062 struct net_device *dev = info->user_ptr[1];
5727ef1b 4063 struct station_parameters params;
77ee7c89
JB		 4064 u8 *mac_addr;
4065 int err;
5727ef1b
JB		 4066
4067 memset(&params, 0, sizeof(params));
4068
4069 params.listen_interval = -1;
4070
77ee7c89
JB		 4071 if (!rdev->ops->change_station)
4072 return -EOPNOTSUPP;
4073
5727ef1b
JB		 4074 if (info->attrs[NL80211_ATTR_STA_AID])
4075 return -EINVAL;
4076
4077 if (!info->attrs[NL80211_ATTR_MAC])
4078 return -EINVAL;
4079
4080 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4081
4082 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4083 params.supported_rates =
4084 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4085 params.supported_rates_len =
4086 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4087 }
4088
9d62a986
JM		 4089 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4090 params.capability =
4091 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4092 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4093 }
4094
4095 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4096 params.ext_capab =
4097 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4098 params.ext_capab_len =
4099 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4100 }
4101
df881293 4102 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4103 return -EINVAL;
36aedc90 4104
bdd3ae3d 4105 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4106 return -EINVAL;
4107
f8bacc21 4108 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4109 params.plink_action =
f8bacc21
JB		 4110 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4111 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4112 return -EINVAL;
4113 }
2ec600d6 4114
f8bacc21 4115 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4116 params.plink_state =
f8bacc21
JB		 4117 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4118 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4119 return -EINVAL;
4120 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4121 }
9c3990aa 4122
3b1c5a53
MP		 4123 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4124 enum nl80211_mesh_power_mode pm = nla_get_u32(
4125 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4126
4127 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4128 pm > NL80211_MESH_POWER_MAX)
4129 return -EINVAL;
4130
4131 params.local_pm = pm;
4132 }
4133
77ee7c89
JB		 4134 /* Include parameters for TDLS peer (will check later) */
4135 err = nl80211_set_station_tdls(info, &params);
4136 if (err)
4137 return err;
4138
4139 params.vlan = get_vlan(info, rdev);
4140 if (IS_ERR(params.vlan))
4141 return PTR_ERR(params.vlan);
4142
a97f4424
JB		 4143 switch (dev->ieee80211_ptr->iftype) {
4144 case NL80211_IFTYPE_AP:
4145 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4146 case NL80211_IFTYPE_P2P_GO:
074ac8df 4147 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4148 case NL80211_IFTYPE_STATION:
267335d6 4149 case NL80211_IFTYPE_ADHOC:
a97f4424 4150 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4151 break;
4152 default:
77ee7c89
JB		 4153 err = -EOPNOTSUPP;
4154 goto out_put_vlan;
034d655e
JB		 4155 }
4156
77ee7c89 4157 /* driver will call cfg80211_check_station_change() */
e35e4d28 4158 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4159
77ee7c89 4160 out_put_vlan:
5727ef1b
JB		 4161 if (params.vlan)
4162 dev_put(params.vlan);
3b85875a 4163
5727ef1b
JB		 4164 return err;
4165}
4166
4167static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4168{
4c476991 4169 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4170 int err;
4c476991 4171 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4172 struct station_parameters params;
4173 u8 *mac_addr = NULL;
4174
4175 memset(&params, 0, sizeof(params));
4176
984c311b
JB		 4177 if (!rdev->ops->add_station)
4178 return -EOPNOTSUPP;
4179
5727ef1b
JB		 4180 if (!info->attrs[NL80211_ATTR_MAC])
4181 return -EINVAL;
4182
5727ef1b
JB		 4183 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4184 return -EINVAL;
4185
4186 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4187 return -EINVAL;
4188
5e4b6f56
JM		 4189 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4190 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4191 return -EINVAL;
4192
5727ef1b
JB		 4193 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4194 params.supported_rates =
4195 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4196 params.supported_rates_len =
4197 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4198 params.listen_interval =
4199 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4200
3d124ea2 4201 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4202 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4203 else
4204 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4205 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4206 return -EINVAL;
51b50fbe 4207
9d62a986
JM		 4208 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4209 params.capability =
4210 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4211 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4212 }
4213
4214 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4215 params.ext_capab =
4216 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4217 params.ext_capab_len =
4218 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4219 }
4220
36aedc90
JM		 4221 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4222 params.ht_capa =
4223 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4224
f461be3e
MP		 4225 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4226 params.vht_capa =
4227 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4228
60f4a7b1
MK		 4229 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4230 params.opmode_notif_used = true;
4231 params.opmode_notif =
4232 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4233 }
4234
f8bacc21 4235 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4236 params.plink_action =
f8bacc21
JB		 4237 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4238 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4239 return -EINVAL;
4240 }
96b78dff 4241
c01fc9ad
SD		 4242 err = nl80211_parse_sta_channel_info(info, &params);
4243 if (err)
4244 return err;
4245
ff276691
JB		 4246 err = nl80211_parse_sta_wme(info, &params);
4247 if (err)
4248 return err;
bdd90d5e 4249
bdd3ae3d 4250 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4251 return -EINVAL;
4252
77ee7c89
JB		 4253 /* When you run into this, adjust the code below for the new flag */
4254 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4255
bdd90d5e
JB		 4256 switch (dev->ieee80211_ptr->iftype) {
4257 case NL80211_IFTYPE_AP:
4258 case NL80211_IFTYPE_AP_VLAN:
4259 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4260 /* ignore WME attributes if iface/sta is not capable */
4261 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4262 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4263 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4264
bdd90d5e 4265 /* TDLS peers cannot be added */
3d124ea2
JM		 4266 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4267 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4268 return -EINVAL;
bdd90d5e
JB		 4269 /* but don't bother the driver with it */
4270 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4271
d582cffb
JB		 4272 /* allow authenticated/associated only if driver handles it */
4273 if (!(rdev->wiphy.features &
4274 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4275 params.sta_flags_mask &
4276 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4277 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4278 return -EINVAL;
4279
bdd90d5e
JB		 4280 /* must be last in here for error handling */
4281 params.vlan = get_vlan(info, rdev);
4282 if (IS_ERR(params.vlan))
4283 return PTR_ERR(params.vlan);
4284 break;
4285 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4286 /* ignore uAPSD data */
4287 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4288
d582cffb
JB		 4289 /* associated is disallowed */
4290 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4291 return -EINVAL;
bdd90d5e 4292 /* TDLS peers cannot be added */
3d124ea2
JM		 4293 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4294 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4295 return -EINVAL;
4296 break;
4297 case NL80211_IFTYPE_STATION:
93d08f0b 4298 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4299 /* ignore uAPSD data */
4300 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4301
77ee7c89
JB		 4302 /* these are disallowed */
4303 if (params.sta_flags_mask &
4304 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4305 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4306 return -EINVAL;
bdd90d5e
JB		 4307 /* Only TDLS peers can be added */
4308 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4309 return -EINVAL;
4310 /* Can only add if TDLS ... */
4311 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4312 return -EOPNOTSUPP;
4313 /* ... with external setup is supported */
4314 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4315 return -EOPNOTSUPP;
77ee7c89
JB		 4316 /*
4317 * Older wpa_supplicant versions always mark the TDLS peer
4318 * as authorized, but it shouldn't yet be.
4319 */
4320 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4321 break;
4322 default:
4323 return -EOPNOTSUPP;
c75786c9
EP		 4324 }
4325
bdd90d5e 4326 /* be aware of params.vlan when changing code here */
5727ef1b 4327
e35e4d28 4328 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4329
5727ef1b
JB		 4330 if (params.vlan)
4331 dev_put(params.vlan);
5727ef1b
JB		 4332 return err;
4333}
4334
4335static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4336{
4c476991
JB		 4337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4338 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4339 u8 *mac_addr = NULL;
4340
4341 if (info->attrs[NL80211_ATTR_MAC])
4342 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4343
e80cf853 4344 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4345 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4346 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4347 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4348 return -EINVAL;
5727ef1b 4349
4c476991
JB		 4350 if (!rdev->ops->del_station)
4351 return -EOPNOTSUPP;
3b85875a 4352
e35e4d28 4353 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4354}
4355
15e47304 4356static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4357 int flags, struct net_device *dev,
4358 u8 *dst, u8 *next_hop,
4359 struct mpath_info *pinfo)
4360{
4361 void *hdr;
4362 struct nlattr *pinfoattr;
4363
15e47304 4364 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4365 if (!hdr)
4366 return -1;
4367
9360ffd1
DM		 4368 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4369 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4370 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4371 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4372 goto nla_put_failure;
f5ea9120 4373
2ec600d6
LCC		 4374 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4375 if (!pinfoattr)
4376 goto nla_put_failure;
9360ffd1
DM		 4377 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4378 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4379 pinfo->frame_qlen))
4380 goto nla_put_failure;
4381 if (((pinfo->filled & MPATH_INFO_SN) &&
4382 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4383 ((pinfo->filled & MPATH_INFO_METRIC) &&
4384 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4385 pinfo->metric)) ||
4386 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4387 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4388 pinfo->exptime)) ||
4389 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4390 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4391 pinfo->flags)) ||
4392 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4393 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4394 pinfo->discovery_timeout)) ||
4395 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4396 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4397 pinfo->discovery_retries)))
4398 goto nla_put_failure;
2ec600d6
LCC		 4399
4400 nla_nest_end(msg, pinfoattr);
4401
4402 return genlmsg_end(msg, hdr);
4403
4404 nla_put_failure:
bc3ed28c
TG		 4405 genlmsg_cancel(msg, hdr);
4406 return -EMSGSIZE;
2ec600d6
LCC		 4407}
4408
4409static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4410 struct netlink_callback *cb)
2ec600d6 4411{
2ec600d6 4412 struct mpath_info pinfo;
1b8ec87a 4413 struct cfg80211_registered_device *rdev;
97990a06 4414 struct wireless_dev *wdev;
2ec600d6
LCC		 4415 u8 dst[ETH_ALEN];
4416 u8 next_hop[ETH_ALEN];
97990a06 4417 int path_idx = cb->args[2];
2ec600d6 4418 int err;
2ec600d6 4419
1b8ec87a 4420 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4421 if (err)
4422 return err;
bba95fef 4423
1b8ec87a 4424 if (!rdev->ops->dump_mpath) {
eec60b03 4425 err = -EOPNOTSUPP;
bba95fef
JB		 4426 goto out_err;
4427 }
4428
97990a06 4429 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4430 err = -EOPNOTSUPP;
0448b5fc 4431 goto out_err;
eec60b03
JM		 4432 }
4433
bba95fef 4434 while (1) {
1b8ec87a 4435 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4436 next_hop, &pinfo);
bba95fef 4437 if (err == -ENOENT)
2ec600d6 4438 break;
bba95fef 4439 if (err)
3b85875a 4440 goto out_err;
2ec600d6 4441
15e47304 4442 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4443 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4444 wdev->netdev, dst, next_hop,
bba95fef
JB		 4445 &pinfo) < 0)
4446 goto out;
2ec600d6 4447
bba95fef 4448 path_idx++;
2ec600d6 4449 }
2ec600d6 4450
2ec600d6 4451
bba95fef 4452 out:
97990a06 4453 cb->args[2] = path_idx;
bba95fef 4454 err = skb->len;
bba95fef 4455 out_err:
1b8ec87a 4456 nl80211_finish_wdev_dump(rdev);
bba95fef 4457 return err;
2ec600d6
LCC		 4458}
4459
4460static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4461{
4c476991 4462 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4463 int err;
4c476991 4464 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4465 struct mpath_info pinfo;
4466 struct sk_buff *msg;
4467 u8 *dst = NULL;
4468 u8 next_hop[ETH_ALEN];
4469
4470 memset(&pinfo, 0, sizeof(pinfo));
4471
4472 if (!info->attrs[NL80211_ATTR_MAC])
4473 return -EINVAL;
4474
4475 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4476
4c476991
JB		 4477 if (!rdev->ops->get_mpath)
4478 return -EOPNOTSUPP;
2ec600d6 4479
4c476991
JB		 4480 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4481 return -EOPNOTSUPP;
eec60b03 4482
e35e4d28 4483 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4484 if (err)
4c476991 4485 return err;
2ec600d6 4486
fd2120ca 4487 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4488 if (!msg)
4c476991 4489 return -ENOMEM;
2ec600d6 4490
15e47304 4491 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4492 dev, dst, next_hop, &pinfo) < 0) {
4493 nlmsg_free(msg);
4494 return -ENOBUFS;
4495 }
3b85875a 4496
4c476991 4497 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4498}
4499
4500static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4501{
4c476991
JB		 4502 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4503 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4504 u8 *dst = NULL;
4505 u8 *next_hop = NULL;
4506
4507 if (!info->attrs[NL80211_ATTR_MAC])
4508 return -EINVAL;
4509
4510 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4511 return -EINVAL;
4512
4513 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4514 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4515
4c476991
JB		 4516 if (!rdev->ops->change_mpath)
4517 return -EOPNOTSUPP;
35a8efe1 4518
4c476991
JB		 4519 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4520 return -EOPNOTSUPP;
2ec600d6 4521
e35e4d28 4522 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4523}
4c476991 4524
2ec600d6
LCC		 4525static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4526{
4c476991
JB		 4527 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4528 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4529 u8 *dst = NULL;
4530 u8 *next_hop = NULL;
4531
4532 if (!info->attrs[NL80211_ATTR_MAC])
4533 return -EINVAL;
4534
4535 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4536 return -EINVAL;
4537
4538 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4539 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4540
4c476991
JB		 4541 if (!rdev->ops->add_mpath)
4542 return -EOPNOTSUPP;
35a8efe1 4543
4c476991
JB		 4544 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4545 return -EOPNOTSUPP;
2ec600d6 4546
e35e4d28 4547 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4548}
4549
4550static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4551{
4c476991
JB		 4552 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4553 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4554 u8 *dst = NULL;
4555
4556 if (info->attrs[NL80211_ATTR_MAC])
4557 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4558
4c476991
JB		 4559 if (!rdev->ops->del_mpath)
4560 return -EOPNOTSUPP;
3b85875a 4561
e35e4d28 4562 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4563}
4564
9f1ba906
JM		 4565static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4566{
4c476991
JB		 4567 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4568 struct net_device *dev = info->user_ptr[1];
c56589ed 4569 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4570 struct bss_parameters params;
c56589ed 4571 int err;
9f1ba906
JM		 4572
4573 memset(&params, 0, sizeof(params));
4574 /* default to not changing parameters */
4575 params.use_cts_prot = -1;
4576 params.use_short_preamble = -1;
4577 params.use_short_slot_time = -1;
fd8aaaf3 4578 params.ap_isolate = -1;
50b12f59 4579 params.ht_opmode = -1;
53cabad7
JB		 4580 params.p2p_ctwindow = -1;
4581 params.p2p_opp_ps = -1;
9f1ba906
JM		 4582
4583 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4584 params.use_cts_prot =
4585 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4586 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4587 params.use_short_preamble =
4588 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4589 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4590 params.use_short_slot_time =
4591 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4592 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4593 params.basic_rates =
4594 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4595 params.basic_rates_len =
4596 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4597 }
fd8aaaf3
FF		 4598 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4599 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4600 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4601 params.ht_opmode =
4602 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4603
53cabad7
JB		 4604 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4605 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4606 return -EINVAL;
4607 params.p2p_ctwindow =
4608 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4609 if (params.p2p_ctwindow < 0)
4610 return -EINVAL;
4611 if (params.p2p_ctwindow != 0 &&
4612 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4613 return -EINVAL;
4614 }
4615
4616 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4617 u8 tmp;
4618
4619 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4620 return -EINVAL;
4621 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4622 if (tmp > 1)
4623 return -EINVAL;
4624 params.p2p_opp_ps = tmp;
4625 if (params.p2p_opp_ps &&
4626 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4627 return -EINVAL;
4628 }
4629
4c476991
JB		 4630 if (!rdev->ops->change_bss)
4631 return -EOPNOTSUPP;
9f1ba906 4632
074ac8df 4633 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4634 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4635 return -EOPNOTSUPP;
3b85875a 4636
c56589ed
SW		 4637 wdev_lock(wdev);
4638 err = rdev_change_bss(rdev, dev, &params);
4639 wdev_unlock(wdev);
4640
4641 return err;
9f1ba906
JM		 4642}
4643
b54452b0 4644static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4645 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4646 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4647 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4648 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4649 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4650 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4651 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4652};
4653
4654static int parse_reg_rule(struct nlattr *tb[],
4655 struct ieee80211_reg_rule *reg_rule)
4656{
4657 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4658 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4659
4660 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4661 return -EINVAL;
4662 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4663 return -EINVAL;
4664 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4665 return -EINVAL;
b0dfd2ea
JD		 4666 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4667 return -EINVAL;
b2e1b302
LR		 4668 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4669 return -EINVAL;
4670
4671 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4672
4673 freq_range->start_freq_khz =
4674 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4675 freq_range->end_freq_khz =
4676 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4677 freq_range->max_bandwidth_khz =
4678 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4679
4680 power_rule->max_eirp =
4681 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4682
4683 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4684 power_rule->max_antenna_gain =
4685 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4686
089027e5
JD		 4687 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4688 reg_rule->dfs_cac_ms =
4689 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4690
b2e1b302
LR		 4691 return 0;
4692}
4693
4694static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4695{
b2e1b302 4696 char *data = NULL;
57b5ce07 4697 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4698
80778f18
LR		 4699 /*
4700 * You should only get this when cfg80211 hasn't yet initialized
4701 * completely when built-in to the kernel right between the time
4702 * window between nl80211_init() and regulatory_init(), if that is
4703 * even possible.
4704 */
458f4f9e 4705 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4706 return -EINPROGRESS;
80778f18 4707
57b5ce07
LR		 4708 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4709 user_reg_hint_type =
4710 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4711 else
4712 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4713
4714 switch (user_reg_hint_type) {
4715 case NL80211_USER_REG_HINT_USER:
4716 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4717 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4718 return -EINVAL;
4719
4720 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4721 return regulatory_hint_user(data, user_reg_hint_type);
4722 case NL80211_USER_REG_HINT_INDOOR:
4723 return regulatory_hint_indoor_user();
57b5ce07
LR		 4724 default:
4725 return -EINVAL;
4726 }
b2e1b302
LR		 4727}
4728
24bdd9f4 4729static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4730 struct genl_info *info)
93da9cc1 4731{
4c476991 4732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4733 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4734 struct wireless_dev *wdev = dev->ieee80211_ptr;
4735 struct mesh_config cur_params;
4736 int err = 0;
93da9cc1 4737 void *hdr;
4738 struct nlattr *pinfoattr;
4739 struct sk_buff *msg;
4740
29cbe68c
JB		 4741 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4742 return -EOPNOTSUPP;
4743
24bdd9f4 4744 if (!rdev->ops->get_mesh_config)
4c476991 4745 return -EOPNOTSUPP;
f3f92586 4746
29cbe68c
JB		 4747 wdev_lock(wdev);
4748 /* If not connected, get default parameters */
4749 if (!wdev->mesh_id_len)
4750 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4751 else
e35e4d28 4752 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4753 wdev_unlock(wdev);
4754
93da9cc1 4755 if (err)
4c476991 4756 return err;
93da9cc1 4757
4758 /* Draw up a netlink message to send back */
fd2120ca 4759 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4760 if (!msg)
4761 return -ENOMEM;
15e47304 4762 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4763 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4764 if (!hdr)
efe1cf0c 4765 goto out;
24bdd9f4 4766 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4767 if (!pinfoattr)
4768 goto nla_put_failure;
9360ffd1
DM		 4769 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4770 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4771 cur_params.dot11MeshRetryTimeout) ||
4772 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4773 cur_params.dot11MeshConfirmTimeout) ||
4774 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4775 cur_params.dot11MeshHoldingTimeout) ||
4776 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4777 cur_params.dot11MeshMaxPeerLinks) ||
4778 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4779 cur_params.dot11MeshMaxRetries) ||
4780 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4781 cur_params.dot11MeshTTL) ||
4782 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4783 cur_params.element_ttl) ||
4784 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4785 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4786 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4787 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4788 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4789 cur_params.dot11MeshHWMPmaxPREQretries) ||
4790 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4791 cur_params.path_refresh_time) ||
4792 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4793 cur_params.min_discovery_timeout) ||
4794 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4795 cur_params.dot11MeshHWMPactivePathTimeout) ||
4796 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4797 cur_params.dot11MeshHWMPpreqMinInterval) ||
4798 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4799 cur_params.dot11MeshHWMPperrMinInterval) ||
4800 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4801 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4802 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4803 cur_params.dot11MeshHWMPRootMode) ||
4804 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4805 cur_params.dot11MeshHWMPRannInterval) ||
4806 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4807 cur_params.dot11MeshGateAnnouncementProtocol) ||
4808 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4809 cur_params.dot11MeshForwarding) ||
4810 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4811 cur_params.rssi_threshold) ||
4812 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4813 cur_params.ht_opmode) ||
4814 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4815 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4816 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4817 cur_params.dot11MeshHWMProotInterval) ||
4818 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4819 cur_params.dot11MeshHWMPconfirmationInterval) ||
4820 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4821 cur_params.power_mode) ||
4822 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4823 cur_params.dot11MeshAwakeWindowDuration) ||
4824 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4825 cur_params.plink_timeout))
9360ffd1 4826 goto nla_put_failure;
93da9cc1 4827 nla_nest_end(msg, pinfoattr);
4828 genlmsg_end(msg, hdr);
4c476991 4829 return genlmsg_reply(msg, info);
93da9cc1 4830
3b85875a 4831 nla_put_failure:
93da9cc1 4832 genlmsg_cancel(msg, hdr);
efe1cf0c 4833 out:
d080e275 4834 nlmsg_free(msg);
4c476991 4835 return -ENOBUFS;
93da9cc1 4836}
4837
b54452b0 4838static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4839 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4840 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4841 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4842 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4843 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4844 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4845 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4846 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4847 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4848 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4849 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4850 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4851 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4852 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4853 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4854 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4855 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4856 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4857 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4858 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4859 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4860 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4861 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4862 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4863 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4864 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4865 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4866 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4867};
4868
c80d545d
JC		 4869static const struct nla_policy
4870 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4871 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4872 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4873 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4874 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4875 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4876 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4877 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4878 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4879 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4880};
4881
24bdd9f4 4882static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4883 struct mesh_config *cfg,
4884 u32 *mask_out)
93da9cc1 4885{
93da9cc1 4886 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4887 u32 mask = 0;
93da9cc1 4888
ea54fba2
MP		 4889#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4890do { \
4891 if (tb[attr]) { \
4892 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4893 return -EINVAL; \
4894 cfg->param = fn(tb[attr]); \
4895 mask |= (1 << (attr - 1)); \
4896 } \
4897} while (0)
bd90fdcc
JB		 4898
4899
24bdd9f4 4900 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4901 return -EINVAL;
4902 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4903 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4904 nl80211_meshconf_params_policy))
93da9cc1 4905 return -EINVAL;
4906
93da9cc1 4907 /* This makes sure that there aren't more than 32 mesh config
4908 * parameters (otherwise our bitfield scheme would not work.) */
4909 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4910
4911 /* Fill in the params struct */
ea54fba2 4912 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4913 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4914 nla_get_u16);
ea54fba2 4915 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4916 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4917 nla_get_u16);
ea54fba2 4918 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4919 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4920 nla_get_u16);
ea54fba2 4921 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4922 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4923 nla_get_u16);
ea54fba2 4924 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4925 mask, NL80211_MESHCONF_MAX_RETRIES,
4926 nla_get_u8);
ea54fba2 4927 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4928 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4929 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4930 mask, NL80211_MESHCONF_ELEMENT_TTL,
4931 nla_get_u8);
ea54fba2 4932 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4933 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4934 nla_get_u8);
ea54fba2
MP		 4935 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4936 1, 255, mask,
a4f606ea
CYY		 4937 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4938 nla_get_u32);
ea54fba2 4939 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4940 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4941 nla_get_u8);
ea54fba2 4942 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4943 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4944 nla_get_u32);
ea54fba2 4945 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4946 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4947 nla_get_u16);
ea54fba2
MP		 4948 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4949 1, 65535, mask,
a4f606ea
CYY		 4950 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4951 nla_get_u32);
93da9cc1 4952 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4953 1, 65535, mask,
4954 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4955 nla_get_u16);
dca7e943 4956 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4957 1, 65535, mask,
4958 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4959 nla_get_u16);
93da9cc1 4960 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4961 dot11MeshHWMPnetDiameterTraversalTime,
4962 1, 65535, mask,
a4f606ea
CYY		 4963 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4964 nla_get_u16);
ea54fba2
MP		 4965 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4966 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4967 nla_get_u8);
4968 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4969 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4970 nla_get_u16);
63c5723b 4971 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4972 dot11MeshGateAnnouncementProtocol, 0, 1,
4973 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4974 nla_get_u8);
ea54fba2 4975 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4976 mask, NL80211_MESHCONF_FORWARDING,
4977 nla_get_u8);
83374fe9 4978 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4979 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4980 nla_get_s32);
ea54fba2 4981 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4982 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4983 nla_get_u16);
4984 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4985 1, 65535, mask,
ac1073a6
CYY		 4986 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4987 nla_get_u32);
ea54fba2 4988 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4989 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4990 nla_get_u16);
4991 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4992 dot11MeshHWMPconfirmationInterval,
4993 1, 65535, mask,
728b19e5 4994 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4995 nla_get_u16);
3b1c5a53
MP		 4996 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4997 NL80211_MESH_POWER_ACTIVE,
4998 NL80211_MESH_POWER_MAX,
4999 mask, NL80211_MESHCONF_POWER_MODE,
5000 nla_get_u32);
5001 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5002 0, 65535, mask,
5003 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5004 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5005 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5006 nla_get_u32);
bd90fdcc
JB		 5007 if (mask_out)
5008 *mask_out = mask;
c80d545d 5009
bd90fdcc
JB		 5010 return 0;
5011
5012#undef FILL_IN_MESH_PARAM_IF_SET
5013}
5014
c80d545d
JC		 5015static int nl80211_parse_mesh_setup(struct genl_info *info,
5016 struct mesh_setup *setup)
5017{
bb2798d4 5018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5019 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5020
5021 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5022 return -EINVAL;
5023 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5024 info->attrs[NL80211_ATTR_MESH_SETUP],
5025 nl80211_mesh_setup_params_policy))
5026 return -EINVAL;
5027
d299a1f2
JC		 5028 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5029 setup->sync_method =
5030 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5031 IEEE80211_SYNC_METHOD_VENDOR :
5032 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5033
c80d545d
JC		 5034 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5035 setup->path_sel_proto =
5036 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5037 IEEE80211_PATH_PROTOCOL_VENDOR :
5038 IEEE80211_PATH_PROTOCOL_HWMP;
5039
5040 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5041 setup->path_metric =
5042 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5043 IEEE80211_PATH_METRIC_VENDOR :
5044 IEEE80211_PATH_METRIC_AIRTIME;
5045
581a8b0f
JC		 5046
5047 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5048 struct nlattr *ieattr =
581a8b0f 5049 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5050 if (!is_valid_ie_attr(ieattr))
5051 return -EINVAL;
581a8b0f
JC		 5052 setup->ie = nla_data(ieattr);
5053 setup->ie_len = nla_len(ieattr);
c80d545d 5054 }
bb2798d4
TP		 5055 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5056 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5057 return -EINVAL;
5058 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5059 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5060 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5061 if (setup->is_secure)
5062 setup->user_mpm = true;
c80d545d 5063
6e16d90b
CT		 5064 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5065 if (!setup->user_mpm)
5066 return -EINVAL;
5067 setup->auth_id =
5068 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5069 }
5070
c80d545d
JC		 5071 return 0;
5072}
5073
24bdd9f4 5074static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5075 struct genl_info *info)
bd90fdcc
JB		 5076{
5077 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5078 struct net_device *dev = info->user_ptr[1];
29cbe68c 5079 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5080 struct mesh_config cfg;
5081 u32 mask;
5082 int err;
5083
29cbe68c
JB		 5084 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5085 return -EOPNOTSUPP;
5086
24bdd9f4 5087 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5088 return -EOPNOTSUPP;
5089
24bdd9f4 5090 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5091 if (err)
5092 return err;
5093
29cbe68c
JB		 5094 wdev_lock(wdev);
5095 if (!wdev->mesh_id_len)
5096 err = -ENOLINK;
5097
5098 if (!err)
e35e4d28 5099 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5100
5101 wdev_unlock(wdev);
5102
5103 return err;
93da9cc1 5104}
5105
f130347c
LR		 5106static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5107{
458f4f9e 5108 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5109 struct sk_buff *msg;
5110 void *hdr = NULL;
5111 struct nlattr *nl_reg_rules;
5112 unsigned int i;
f130347c
LR		 5113
5114 if (!cfg80211_regdomain)
5fe231e8 5115 return -EINVAL;
f130347c 5116
fd2120ca 5117 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5118 if (!msg)
5119 return -ENOBUFS;
f130347c 5120
15e47304 5121 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5122 NL80211_CMD_GET_REG);
5123 if (!hdr)
efe1cf0c 5124 goto put_failure;
f130347c 5125
57b5ce07
LR		 5126 if (reg_last_request_cell_base() &&
5127 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5128 NL80211_USER_REG_HINT_CELL_BASE))
5129 goto nla_put_failure;
5130
458f4f9e
JB		 5131 rcu_read_lock();
5132 regdom = rcu_dereference(cfg80211_regdomain);
5133
5134 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5135 (regdom->dfs_region &&
5136 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5137 goto nla_put_failure_rcu;
5138
f130347c
LR		 5139 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5140 if (!nl_reg_rules)
458f4f9e 5141 goto nla_put_failure_rcu;
f130347c 5142
458f4f9e 5143 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5144 struct nlattr *nl_reg_rule;
5145 const struct ieee80211_reg_rule *reg_rule;
5146 const struct ieee80211_freq_range *freq_range;
5147 const struct ieee80211_power_rule *power_rule;
97524820 5148 unsigned int max_bandwidth_khz;
f130347c 5149
458f4f9e 5150 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5151 freq_range = &reg_rule->freq_range;
5152 power_rule = &reg_rule->power_rule;
5153
5154 nl_reg_rule = nla_nest_start(msg, i);
5155 if (!nl_reg_rule)
458f4f9e 5156 goto nla_put_failure_rcu;
f130347c 5157
97524820
JD		 5158 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5159 if (!max_bandwidth_khz)
5160 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5161 reg_rule);
5162
9360ffd1
DM		 5163 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5164 reg_rule->flags) ||
5165 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5166 freq_range->start_freq_khz) ||
5167 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5168 freq_range->end_freq_khz) ||
5169 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5170 max_bandwidth_khz) ||
9360ffd1
DM		 5171 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5172 power_rule->max_antenna_gain) ||
5173 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5174 power_rule->max_eirp) ||
5175 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5176 reg_rule->dfs_cac_ms))
458f4f9e 5177 goto nla_put_failure_rcu;
f130347c
LR		 5178
5179 nla_nest_end(msg, nl_reg_rule);
5180 }
458f4f9e 5181 rcu_read_unlock();
f130347c
LR		 5182
5183 nla_nest_end(msg, nl_reg_rules);
5184
5185 genlmsg_end(msg, hdr);
5fe231e8 5186 return genlmsg_reply(msg, info);
f130347c 5187
458f4f9e
JB		 5188nla_put_failure_rcu:
5189 rcu_read_unlock();
f130347c
LR		 5190nla_put_failure:
5191 genlmsg_cancel(msg, hdr);
efe1cf0c 5192put_failure:
d080e275 5193 nlmsg_free(msg);
5fe231e8 5194 return -EMSGSIZE;
f130347c
LR		 5195}
5196
b2e1b302
LR		 5197static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5198{
5199 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5200 struct nlattr *nl_reg_rule;
5201 char *alpha2 = NULL;
5202 int rem_reg_rules = 0, r = 0;
5203 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5204 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5205 struct ieee80211_regdomain *rd = NULL;
5206
5207 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5208 return -EINVAL;
5209
5210 if (!info->attrs[NL80211_ATTR_REG_RULES])
5211 return -EINVAL;
5212
5213 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5214
8b60b078
LR		 5215 if (info->attrs[NL80211_ATTR_DFS_REGION])
5216 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5217
b2e1b302 5218 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5219 rem_reg_rules) {
b2e1b302
LR		 5220 num_rules++;
5221 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5222 return -EINVAL;
b2e1b302
LR		 5223 }
5224
e438768f
LR		 5225 if (!reg_is_valid_request(alpha2))
5226 return -EINVAL;
5227
b2e1b302 5228 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5229 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5230
5231 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5232 if (!rd)
5233 return -ENOMEM;
b2e1b302
LR		 5234
5235 rd->n_reg_rules = num_rules;
5236 rd->alpha2[0] = alpha2[0];
5237 rd->alpha2[1] = alpha2[1];
5238
8b60b078
LR		 5239 /*
5240 * Disable DFS master mode if the DFS region was
5241 * not supported or known on this kernel.
5242 */
5243 if (reg_supported_dfs_region(dfs_region))
5244 rd->dfs_region = dfs_region;
5245
b2e1b302 5246 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5247 rem_reg_rules) {
ae811e21
JB		 5248 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5249 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5250 reg_rule_policy);
5251 if (r)
5252 goto bad_reg;
b2e1b302
LR		 5253 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5254 if (r)
5255 goto bad_reg;
5256
5257 rule_idx++;
5258
d0e18f83
LR		 5259 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5260 r = -EINVAL;
b2e1b302 5261 goto bad_reg;
d0e18f83 5262 }
b2e1b302
LR		 5263 }
5264
b2e1b302 5265 r = set_regdom(rd);
6913b49a 5266 /* set_regdom took ownership */
1a919318 5267 rd = NULL;
b2e1b302 5268
d2372b31 5269 bad_reg:
b2e1b302 5270 kfree(rd);
d0e18f83 5271 return r;
b2e1b302
LR		 5272}
5273
83f5e2cf
JB		 5274static int validate_scan_freqs(struct nlattr *freqs)
5275{
5276 struct nlattr *attr1, *attr2;
5277 int n_channels = 0, tmp1, tmp2;
5278
5279 nla_for_each_nested(attr1, freqs, tmp1) {
5280 n_channels++;
5281 /*
5282 * Some hardware has a limited channel list for
5283 * scanning, and it is pretty much nonsensical
5284 * to scan for a channel twice, so disallow that
5285 * and don't require drivers to check that the
5286 * channel list they get isn't longer than what
5287 * they can scan, as long as they can scan all
5288 * the channels they registered at once.
5289 */
5290 nla_for_each_nested(attr2, freqs, tmp2)
5291 if (attr1 != attr2 &&
5292 nla_get_u32(attr1) == nla_get_u32(attr2))
5293 return 0;
5294 }
5295
5296 return n_channels;
5297}
5298
2a519311
JB		 5299static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5300{
4c476991 5301 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5302 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5303 struct cfg80211_scan_request *request;
2a519311
JB		 5304 struct nlattr *attr;
5305 struct wiphy *wiphy;
83f5e2cf 5306 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5307 size_t ie_len;
2a519311 5308
f4a11bb0
JB		 5309 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5310 return -EINVAL;
5311
79c97e97 5312 wiphy = &rdev->wiphy;
2a519311 5313
4c476991
JB		 5314 if (!rdev->ops->scan)
5315 return -EOPNOTSUPP;
2a519311 5316
f9d15d16 5317 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5318 err = -EBUSY;
5319 goto unlock;
5320 }
2a519311
JB		 5321
5322 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5323 n_channels = validate_scan_freqs(
5324 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5325 if (!n_channels) {
5326 err = -EINVAL;
5327 goto unlock;
5328 }
2a519311 5329 } else {
bdfbec2d 5330 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5331 }
5332
5333 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5334 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5335 n_ssids++;
5336
f9f47529
JB		 5337 if (n_ssids > wiphy->max_scan_ssids) {
5338 err = -EINVAL;
5339 goto unlock;
5340 }
2a519311 5341
70692ad2
JM		 5342 if (info->attrs[NL80211_ATTR_IE])
5343 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5344 else
5345 ie_len = 0;
5346
f9f47529
JB		 5347 if (ie_len > wiphy->max_scan_ie_len) {
5348 err = -EINVAL;
5349 goto unlock;
5350 }
18a83659 5351
2a519311 5352 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5353 + sizeof(*request->ssids) * n_ssids
5354 + sizeof(*request->channels) * n_channels
70692ad2 5355 + ie_len, GFP_KERNEL);
f9f47529
JB		 5356 if (!request) {
5357 err = -ENOMEM;
5358 goto unlock;
5359 }
2a519311 5360
2a519311 5361 if (n_ssids)
5ba63533 5362 request->ssids = (void *)&request->channels[n_channels];
2a519311 5363 request->n_ssids = n_ssids;
70692ad2
JM		 5364 if (ie_len) {
5365 if (request->ssids)
5366 request->ie = (void *)(request->ssids + n_ssids);
5367 else
5368 request->ie = (void *)(request->channels + n_channels);
5369 }
2a519311 5370
584991dc 5371 i = 0;
2a519311
JB		 5372 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5373 /* user specified, bail out if channel not found */
2a519311 5374 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5375 struct ieee80211_channel *chan;
5376
5377 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5378
5379 if (!chan) {
2a519311
JB		 5380 err = -EINVAL;
5381 goto out_free;
5382 }
584991dc
JB		 5383
5384 /* ignore disabled channels */
5385 if (chan->flags & IEEE80211_CHAN_DISABLED)
5386 continue;
5387
5388 request->channels[i] = chan;
2a519311
JB		 5389 i++;
5390 }
5391 } else {
34850ab2
JB		 5392 enum ieee80211_band band;
5393
2a519311 5394 /* all channels */
2a519311
JB		 5395 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5396 int j;
5397 if (!wiphy->bands[band])
5398 continue;
5399 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5400 struct ieee80211_channel *chan;
5401
5402 chan = &wiphy->bands[band]->channels[j];
5403
5404 if (chan->flags & IEEE80211_CHAN_DISABLED)
5405 continue;
5406
5407 request->channels[i] = chan;
2a519311
JB		 5408 i++;
5409 }
5410 }
5411 }
5412
584991dc
JB		 5413 if (!i) {
5414 err = -EINVAL;
5415 goto out_free;
5416 }
5417
5418 request->n_channels = i;
5419
2a519311
JB		 5420 i = 0;
5421 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5422 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5423 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5424 err = -EINVAL;
5425 goto out_free;
5426 }
57a27e1d 5427 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5428 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5429 i++;
5430 }
5431 }
5432
70692ad2
JM		 5433 if (info->attrs[NL80211_ATTR_IE]) {
5434 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5435 memcpy((void *)request->ie,
5436 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5437 request->ie_len);
5438 }
5439
34850ab2 5440 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5441 if (wiphy->bands[i])
5442 request->rates[i] =
5443 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5444
5445 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5446 nla_for_each_nested(attr,
5447 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5448 tmp) {
5449 enum ieee80211_band band = nla_type(attr);
5450
84404623 5451 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5452 err = -EINVAL;
5453 goto out_free;
5454 }
1b09cd82
FF		 5455
5456 if (!wiphy->bands[band])
5457 continue;
5458
34850ab2
JB		 5459 err = ieee80211_get_ratemask(wiphy->bands[band],
5460 nla_data(attr),
5461 nla_len(attr),
5462 &request->rates[band]);
5463 if (err)
5464 goto out_free;
5465 }
5466 }
5467
46856bbf 5468 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5469 request->flags = nla_get_u32(
5470 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5471 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5472 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5473 err = -EOPNOTSUPP;
5474 goto out_free;
5475 }
5476 }
ed473771 5477
e9f935e3
RM		 5478 request->no_cck =
5479 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5480
fd014284 5481 request->wdev = wdev;
79c97e97 5482 request->wiphy = &rdev->wiphy;
15d6030b 5483 request->scan_start = jiffies;
2a519311 5484
79c97e97 5485 rdev->scan_req = request;
e35e4d28 5486 err = rdev_scan(rdev, request);
2a519311 5487
463d0183 5488 if (!err) {
fd014284
JB		 5489 nl80211_send_scan_start(rdev, wdev);
5490 if (wdev->netdev)
5491 dev_hold(wdev->netdev);
4c476991 5492 } else {
2a519311 5493 out_free:
79c97e97 5494 rdev->scan_req = NULL;
2a519311
JB		 5495 kfree(request);
5496 }
3b85875a 5497
f9f47529 5498 unlock:
2a519311
JB		 5499 return err;
5500}
5501
807f8a8c
LC		 5502static int nl80211_start_sched_scan(struct sk_buff *skb,
5503 struct genl_info *info)
5504{
5505 struct cfg80211_sched_scan_request *request;
5506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5507 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5508 struct nlattr *attr;
5509 struct wiphy *wiphy;
a1f1c21c 5510 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5511 u32 interval;
807f8a8c
LC		 5512 enum ieee80211_band band;
5513 size_t ie_len;
a1f1c21c 5514 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5515 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5516
5517 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5518 !rdev->ops->sched_scan_start)
5519 return -EOPNOTSUPP;
5520
5521 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5522 return -EINVAL;
5523
bbe6ad6d
LC		 5524 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5525 return -EINVAL;
5526
5527 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5528 if (interval == 0)
5529 return -EINVAL;
5530
807f8a8c
LC		 5531 wiphy = &rdev->wiphy;
5532
5533 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5534 n_channels = validate_scan_freqs(
5535 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5536 if (!n_channels)
5537 return -EINVAL;
5538 } else {
bdfbec2d 5539 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5540 }
5541
5542 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5543 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5544 tmp)
5545 n_ssids++;
5546
93b6aa69 5547 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5548 return -EINVAL;
5549
ea73cbce
JB		 5550 /*
5551 * First, count the number of 'real' matchsets. Due to an issue with
5552 * the old implementation, matchsets containing only the RSSI attribute
5553 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5554 * RSSI for all matchsets, rather than their own matchset for reporting
5555 * all APs with a strong RSSI. This is needed to be compatible with
5556 * older userspace that treated a matchset with only the RSSI as the
5557 * global RSSI for all other matchsets - if there are other matchsets.
5558 */
5559 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5560 nla_for_each_nested(attr,
5561 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5562 tmp) {
5563 struct nlattr *rssi;
5564
5565 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5566 nla_data(attr), nla_len(attr),
5567 nl80211_match_policy);
5568 if (err)
5569 return err;
5570 /* add other standalone attributes here */
5571 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5572 n_match_sets++;
5573 continue;
5574 }
5575 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5576 if (rssi)
5577 default_match_rssi = nla_get_s32(rssi);
5578 }
5579 }
5580
5581 /* However, if there's no other matchset, add the RSSI one */
5582 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5583 n_match_sets = 1;
a1f1c21c
LC		 5584
5585 if (n_match_sets > wiphy->max_match_sets)
5586 return -EINVAL;
5587
807f8a8c
LC		 5588 if (info->attrs[NL80211_ATTR_IE])
5589 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5590 else
5591 ie_len = 0;
5592
5a865bad 5593 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5594 return -EINVAL;
5595
c10841ca
LC		 5596 if (rdev->sched_scan_req) {
5597 err = -EINPROGRESS;
5598 goto out;
5599 }
5600
807f8a8c 5601 request = kzalloc(sizeof(*request)
a2cd43c5 5602 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5603 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5604 + sizeof(*request->channels) * n_channels
807f8a8c 5605 + ie_len, GFP_KERNEL);
c10841ca
LC		 5606 if (!request) {
5607 err = -ENOMEM;
5608 goto out;
5609 }
807f8a8c
LC		 5610
5611 if (n_ssids)
5612 request->ssids = (void *)&request->channels[n_channels];
5613 request->n_ssids = n_ssids;
5614 if (ie_len) {
5615 if (request->ssids)
5616 request->ie = (void *)(request->ssids + n_ssids);
5617 else
5618 request->ie = (void *)(request->channels + n_channels);
5619 }
5620
a1f1c21c
LC		 5621 if (n_match_sets) {
5622 if (request->ie)
5623 request->match_sets = (void *)(request->ie + ie_len);
5624 else if (request->ssids)
5625 request->match_sets =
5626 (void *)(request->ssids + n_ssids);
5627 else
5628 request->match_sets =
5629 (void *)(request->channels + n_channels);
5630 }
5631 request->n_match_sets = n_match_sets;
5632
807f8a8c
LC		 5633 i = 0;
5634 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5635 /* user specified, bail out if channel not found */
5636 nla_for_each_nested(attr,
5637 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5638 tmp) {
5639 struct ieee80211_channel *chan;
5640
5641 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5642
5643 if (!chan) {
5644 err = -EINVAL;
5645 goto out_free;
5646 }
5647
5648 /* ignore disabled channels */
5649 if (chan->flags & IEEE80211_CHAN_DISABLED)
5650 continue;
5651
5652 request->channels[i] = chan;
5653 i++;
5654 }
5655 } else {
5656 /* all channels */
5657 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5658 int j;
5659 if (!wiphy->bands[band])
5660 continue;
5661 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5662 struct ieee80211_channel *chan;
5663
5664 chan = &wiphy->bands[band]->channels[j];
5665
5666 if (chan->flags & IEEE80211_CHAN_DISABLED)
5667 continue;
5668
5669 request->channels[i] = chan;
5670 i++;
5671 }
5672 }
5673 }
5674
5675 if (!i) {
5676 err = -EINVAL;
5677 goto out_free;
5678 }
5679
5680 request->n_channels = i;
5681
5682 i = 0;
5683 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5684 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5685 tmp) {
57a27e1d 5686 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5687 err = -EINVAL;
5688 goto out_free;
5689 }
57a27e1d 5690 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5691 memcpy(request->ssids[i].ssid, nla_data(attr),
5692 nla_len(attr));
807f8a8c
LC		 5693 i++;
5694 }
5695 }
5696
a1f1c21c
LC		 5697 i = 0;
5698 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5699 nla_for_each_nested(attr,
5700 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5701 tmp) {
88e920b4 5702 struct nlattr *ssid, *rssi;
a1f1c21c 5703
ae811e21
JB		 5704 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5705 nla_data(attr), nla_len(attr),
5706 nl80211_match_policy);
5707 if (err)
5708 goto out_free;
4a4ab0d7 5709 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5710 if (ssid) {
ea73cbce
JB		 5711 if (WARN_ON(i >= n_match_sets)) {
5712 /* this indicates a programming error,
5713 * the loop above should have verified
5714 * things properly
5715 */
5716 err = -EINVAL;
5717 goto out_free;
5718 }
5719
a1f1c21c
LC		 5720 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5721 err = -EINVAL;
5722 goto out_free;
5723 }
5724 memcpy(request->match_sets[i].ssid.ssid,
5725 nla_data(ssid), nla_len(ssid));
5726 request->match_sets[i].ssid.ssid_len =
5727 nla_len(ssid);
ea73cbce
JB		 5728 /* special attribute - old implemenation w/a */
5729 request->match_sets[i].rssi_thold =
5730 default_match_rssi;
5731 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5732 if (rssi)
5733 request->match_sets[i].rssi_thold =
5734 nla_get_s32(rssi);
a1f1c21c
LC		 5735 }
5736 i++;
5737 }
ea73cbce
JB		 5738
5739 /* there was no other matchset, so the RSSI one is alone */
5740 if (i == 0)
5741 request->match_sets[0].rssi_thold = default_match_rssi;
5742
5743 request->min_rssi_thold = INT_MAX;
5744 for (i = 0; i < n_match_sets; i++)
5745 request->min_rssi_thold =
5746 min(request->match_sets[i].rssi_thold,
5747 request->min_rssi_thold);
5748 } else {
5749 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5750 }
5751
9900e484
JB		 5752 if (ie_len) {
5753 request->ie_len = ie_len;
807f8a8c
LC		 5754 memcpy((void *)request->ie,
5755 nla_data(info->attrs[NL80211_ATTR_IE]),
5756 request->ie_len);
5757 }
5758
46856bbf 5759 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5760 request->flags = nla_get_u32(
5761 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5762 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5763 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5764 err = -EOPNOTSUPP;
5765 goto out_free;
5766 }
5767 }
ed473771 5768
807f8a8c
LC		 5769 request->dev = dev;
5770 request->wiphy = &rdev->wiphy;
bbe6ad6d 5771 request->interval = interval;
15d6030b 5772 request->scan_start = jiffies;
807f8a8c 5773
e35e4d28 5774 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5775 if (!err) {
5776 rdev->sched_scan_req = request;
5777 nl80211_send_sched_scan(rdev, dev,
5778 NL80211_CMD_START_SCHED_SCAN);
5779 goto out;
5780 }
5781
5782out_free:
5783 kfree(request);
5784out:
5785 return err;
5786}
5787
5788static int nl80211_stop_sched_scan(struct sk_buff *skb,
5789 struct genl_info *info)
5790{
5791 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5792
5793 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5794 !rdev->ops->sched_scan_stop)
5795 return -EOPNOTSUPP;
5796
5fe231e8 5797 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5798}
5799
04f39047
SW		 5800static int nl80211_start_radar_detection(struct sk_buff *skb,
5801 struct genl_info *info)
5802{
5803 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5804 struct net_device *dev = info->user_ptr[1];
5805 struct wireless_dev *wdev = dev->ieee80211_ptr;
5806 struct cfg80211_chan_def chandef;
55f7435c 5807 enum nl80211_dfs_regions dfs_region;
31559f35 5808 unsigned int cac_time_ms;
04f39047
SW		 5809 int err;
5810
55f7435c
LR		 5811 dfs_region = reg_get_dfs_region(wdev->wiphy);
5812 if (dfs_region == NL80211_DFS_UNSET)
5813 return -EINVAL;
5814
04f39047
SW		 5815 err = nl80211_parse_chandef(rdev, info, &chandef);
5816 if (err)
5817 return err;
5818
ff311bc1
SW		 5819 if (netif_carrier_ok(dev))
5820 return -EBUSY;
5821
04f39047
SW		 5822 if (wdev->cac_started)
5823 return -EBUSY;
5824
2beb6dab 5825 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 5826 wdev->iftype);
04f39047
SW		 5827 if (err < 0)
5828 return err;
5829
5830 if (err == 0)
5831 return -EINVAL;
5832
fe7c3a1f 5833 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5834 return -EINVAL;
5835
5836 if (!rdev->ops->start_radar_detection)
5837 return -EOPNOTSUPP;
5838
31559f35
JD		 5839 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5840 if (WARN_ON(!cac_time_ms))
5841 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5842
5843 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5844 cac_time_ms);
04f39047 5845 if (!err) {
9e0e2961 5846 wdev->chandef = chandef;
04f39047
SW		 5847 wdev->cac_started = true;
5848 wdev->cac_start_time = jiffies;
31559f35 5849 wdev->cac_time_ms = cac_time_ms;
04f39047 5850 }
04f39047
SW		 5851 return err;
5852}
5853
16ef1fe2
SW		 5854static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5855{
5856 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5857 struct net_device *dev = info->user_ptr[1];
5858 struct wireless_dev *wdev = dev->ieee80211_ptr;
5859 struct cfg80211_csa_settings params;
5860 /* csa_attrs is defined static to avoid waste of stack size - this
5861 * function is called under RTNL lock, so this should not be a problem.
5862 */
5863 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5864 u8 radar_detect_width = 0;
5865 int err;
ee4bc9e7 5866 bool need_new_beacon = false;
16ef1fe2
SW		 5867
5868 if (!rdev->ops->channel_switch ||
5869 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5870 return -EOPNOTSUPP;
5871
ee4bc9e7
SW		 5872 switch (dev->ieee80211_ptr->iftype) {
5873 case NL80211_IFTYPE_AP:
5874 case NL80211_IFTYPE_P2P_GO:
5875 need_new_beacon = true;
5876
5877 /* useless if AP is not running */
5878 if (!wdev->beacon_interval)
1ff79dfa 5879 return -ENOTCONN;
ee4bc9e7
SW		 5880 break;
5881 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 5882 if (!wdev->ssid_len)
5883 return -ENOTCONN;
5884 break;
c6da674a 5885 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 5886 if (!wdev->mesh_id_len)
5887 return -ENOTCONN;
ee4bc9e7
SW		 5888 break;
5889 default:
16ef1fe2 5890 return -EOPNOTSUPP;
ee4bc9e7 5891 }
16ef1fe2
SW		 5892
5893 memset(&params, 0, sizeof(params));
5894
5895 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5896 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5897 return -EINVAL;
5898
5899 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5900 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5901 return -EINVAL;
5902
5903 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5904
ee4bc9e7
SW		 5905 if (!need_new_beacon)
5906 goto skip_beacons;
5907
16ef1fe2
SW		 5908 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5909 if (err)
5910 return err;
5911
5912 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5913 info->attrs[NL80211_ATTR_CSA_IES],
5914 nl80211_policy);
5915 if (err)
5916 return err;
5917
5918 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5919 if (err)
5920 return err;
5921
5922 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5923 return -EINVAL;
5924
5925 params.counter_offset_beacon =
5926 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5927 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5928 return -EINVAL;
5929
5930 /* sanity check - counters should be the same */
5931 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5932 params.count)
5933 return -EINVAL;
5934
5935 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5936 params.counter_offset_presp =
5937 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5938 if (params.counter_offset_presp >=
5939 params.beacon_csa.probe_resp_len)
5940 return -EINVAL;
5941
5942 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5943 params.count)
5944 return -EINVAL;
5945 }
5946
ee4bc9e7 5947skip_beacons:
16ef1fe2
SW		 5948 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5949 if (err)
5950 return err;
5951
174e0cd2
IP		 5952 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
5953 wdev->iftype))
16ef1fe2
SW		 5954 return -EINVAL;
5955
2beb6dab
LC		 5956 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5957 &params.chandef,
5958 wdev->iftype);
5959 if (err < 0)
5960 return err;
5961
5962 if (err > 0) {
5963 radar_detect_width = BIT(params.chandef.width);
5964 params.radar_required = true;
16ef1fe2
SW		 5965 }
5966
73de86a3
LC		 5967 /* TODO: I left this here for now. With channel switch, the
5968 * verification is a bit more complicated, because we only do
5969 * it later when the channel switch really happens.
5970 */
16ef1fe2
SW		 5971 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5972 params.chandef.chan,
5973 CHAN_MODE_SHARED,
5974 radar_detect_width);
5975 if (err)
5976 return err;
5977
5978 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5979 params.block_tx = true;
5980
c56589ed
SW		 5981 wdev_lock(wdev);
5982 err = rdev_channel_switch(rdev, dev, &params);
5983 wdev_unlock(wdev);
5984
5985 return err;
16ef1fe2
SW		 5986}
5987
9720bb3a
JB		 5988static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5989 u32 seq, int flags,
2a519311 5990 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5991 struct wireless_dev *wdev,
5992 struct cfg80211_internal_bss *intbss)
2a519311 5993{
48ab905d 5994 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5995 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5996 void *hdr;
5997 struct nlattr *bss;
8cef2c9d 5998 bool tsf = false;
48ab905d
JB		 5999
6000 ASSERT_WDEV_LOCK(wdev);
2a519311 6001
15e47304 6002 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6003 NL80211_CMD_NEW_SCAN_RESULTS);
6004 if (!hdr)
6005 return -1;
6006
9720bb3a
JB		 6007 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6008
97990a06
JB		 6009 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6010 goto nla_put_failure;
6011 if (wdev->netdev &&
9360ffd1
DM		 6012 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6013 goto nla_put_failure;
97990a06
JB		 6014 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6015 goto nla_put_failure;
2a519311
JB		 6016
6017 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6018 if (!bss)
6019 goto nla_put_failure;
9360ffd1 6020 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6021 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6022 goto nla_put_failure;
9caf0364
JB		 6023
6024 rcu_read_lock();
6025 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6026 if (ies) {
6027 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6028 goto fail_unlock_rcu;
6029 tsf = true;
6030 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6031 ies->len, ies->data))
6032 goto fail_unlock_rcu;
9caf0364
JB		 6033 }
6034 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 6035 if (ies) {
6036 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6037 goto fail_unlock_rcu;
6038 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6039 ies->len, ies->data))
6040 goto fail_unlock_rcu;
9caf0364
JB		 6041 }
6042 rcu_read_unlock();
6043
9360ffd1
DM		 6044 if (res->beacon_interval &&
6045 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6046 goto nla_put_failure;
6047 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6048 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6049 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6050 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6051 jiffies_to_msecs(jiffies - intbss->ts)))
6052 goto nla_put_failure;
2a519311 6053
77965c97 6054 switch (rdev->wiphy.signal_type) {
2a519311 6055 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6056 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6057 goto nla_put_failure;
2a519311
JB		 6058 break;
6059 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6060 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6061 goto nla_put_failure;
2a519311
JB		 6062 break;
6063 default:
6064 break;
6065 }
6066
48ab905d 6067 switch (wdev->iftype) {
074ac8df 6068 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6069 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6070 if (intbss == wdev->current_bss &&
6071 nla_put_u32(msg, NL80211_BSS_STATUS,
6072 NL80211_BSS_STATUS_ASSOCIATED))
6073 goto nla_put_failure;
48ab905d
JB		 6074 break;
6075 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6076 if (intbss == wdev->current_bss &&
6077 nla_put_u32(msg, NL80211_BSS_STATUS,
6078 NL80211_BSS_STATUS_IBSS_JOINED))
6079 goto nla_put_failure;
48ab905d
JB		 6080 break;
6081 default:
6082 break;
6083 }
6084
2a519311
JB		 6085 nla_nest_end(msg, bss);
6086
6087 return genlmsg_end(msg, hdr);
6088
8cef2c9d
JB		 6089 fail_unlock_rcu:
6090 rcu_read_unlock();
2a519311
JB		 6091 nla_put_failure:
6092 genlmsg_cancel(msg, hdr);
6093 return -EMSGSIZE;
6094}
6095
97990a06 6096static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6097{
48ab905d 6098 struct cfg80211_registered_device *rdev;
2a519311 6099 struct cfg80211_internal_bss *scan;
48ab905d 6100 struct wireless_dev *wdev;
97990a06 6101 int start = cb->args[2], idx = 0;
2a519311
JB		 6102 int err;
6103
97990a06 6104 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6105 if (err)
6106 return err;
2a519311 6107
48ab905d
JB		 6108 wdev_lock(wdev);
6109 spin_lock_bh(&rdev->bss_lock);
6110 cfg80211_bss_expire(rdev);
6111
9720bb3a
JB		 6112 cb->seq = rdev->bss_generation;
6113
48ab905d 6114 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6115 if (++idx <= start)
6116 continue;
9720bb3a 6117 if (nl80211_send_bss(skb, cb,
2a519311 6118 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6119 rdev, wdev, scan) < 0) {
2a519311 6120 idx--;
67748893 6121 break;
2a519311
JB		 6122 }
6123 }
6124
48ab905d
JB		 6125 spin_unlock_bh(&rdev->bss_lock);
6126 wdev_unlock(wdev);
2a519311 6127
97990a06
JB		 6128 cb->args[2] = idx;
6129 nl80211_finish_wdev_dump(rdev);
2a519311 6130
67748893 6131 return skb->len;
2a519311
JB		 6132}
6133
15e47304 6134static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6135 int flags, struct net_device *dev,
6136 struct survey_info *survey)
6137{
6138 void *hdr;
6139 struct nlattr *infoattr;
6140
15e47304 6141 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6142 NL80211_CMD_NEW_SURVEY_RESULTS);
6143 if (!hdr)
6144 return -ENOMEM;
6145
9360ffd1
DM		 6146 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6147 goto nla_put_failure;
61fa713c
HS		 6148
6149 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6150 if (!infoattr)
6151 goto nla_put_failure;
6152
9360ffd1
DM		 6153 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6154 survey->channel->center_freq))
6155 goto nla_put_failure;
6156
6157 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6158 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6159 goto nla_put_failure;
6160 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6161 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6162 goto nla_put_failure;
6163 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6164 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6165 survey->channel_time))
6166 goto nla_put_failure;
6167 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6168 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6169 survey->channel_time_busy))
6170 goto nla_put_failure;
6171 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6172 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6173 survey->channel_time_ext_busy))
6174 goto nla_put_failure;
6175 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6176 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6177 survey->channel_time_rx))
6178 goto nla_put_failure;
6179 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6180 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6181 survey->channel_time_tx))
6182 goto nla_put_failure;
61fa713c
HS		 6183
6184 nla_nest_end(msg, infoattr);
6185
6186 return genlmsg_end(msg, hdr);
6187
6188 nla_put_failure:
6189 genlmsg_cancel(msg, hdr);
6190 return -EMSGSIZE;
6191}
6192
6193static int nl80211_dump_survey(struct sk_buff *skb,
6194 struct netlink_callback *cb)
6195{
6196 struct survey_info survey;
1b8ec87a 6197 struct cfg80211_registered_device *rdev;
97990a06
JB		 6198 struct wireless_dev *wdev;
6199 int survey_idx = cb->args[2];
61fa713c
HS		 6200 int res;
6201
1b8ec87a 6202 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6203 if (res)
6204 return res;
61fa713c 6205
97990a06
JB		 6206 if (!wdev->netdev) {
6207 res = -EINVAL;
6208 goto out_err;
6209 }
6210
1b8ec87a 6211 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6212 res = -EOPNOTSUPP;
6213 goto out_err;
6214 }
6215
6216 while (1) {
180cdc79
LR		 6217 struct ieee80211_channel *chan;
6218
1b8ec87a 6219 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6220 if (res == -ENOENT)
6221 break;
6222 if (res)
6223 goto out_err;
6224
180cdc79
LR		 6225 /* Survey without a channel doesn't make sense */
6226 if (!survey.channel) {
6227 res = -EINVAL;
6228 goto out;
6229 }
6230
1b8ec87a 6231 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6232 survey.channel->center_freq);
6233 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6234 survey_idx++;
6235 continue;
6236 }
6237
61fa713c 6238 if (nl80211_send_survey(skb,
15e47304 6239 NETLINK_CB(cb->skb).portid,
61fa713c 6240 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6241 wdev->netdev, &survey) < 0)
61fa713c
HS		 6242 goto out;
6243 survey_idx++;
6244 }
6245
6246 out:
97990a06 6247 cb->args[2] = survey_idx;
61fa713c
HS		 6248 res = skb->len;
6249 out_err:
1b8ec87a 6250 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6251 return res;
6252}
6253
b23aa676
SO		 6254static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6255{
6256 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6257 NL80211_WPA_VERSION_2));
6258}
6259
636a5d36
JM		 6260static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6261{
4c476991
JB		 6262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6263 struct net_device *dev = info->user_ptr[1];
19957bb3 6264 struct ieee80211_channel *chan;
e39e5b5e
JM		 6265 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6266 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6267 enum nl80211_auth_type auth_type;
fffd0934 6268 struct key_parse key;
d5cdfacb 6269 bool local_state_change;
636a5d36 6270
f4a11bb0
JB		 6271 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6272 return -EINVAL;
6273
6274 if (!info->attrs[NL80211_ATTR_MAC])
6275 return -EINVAL;
6276
1778092e
JM		 6277 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6278 return -EINVAL;
6279
19957bb3
JB		 6280 if (!info->attrs[NL80211_ATTR_SSID])
6281 return -EINVAL;
6282
6283 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6284 return -EINVAL;
6285
fffd0934
JB		 6286 err = nl80211_parse_key(info, &key);
6287 if (err)
6288 return err;
6289
6290 if (key.idx >= 0) {
e31b8213
JB		 6291 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6292 return -EINVAL;
fffd0934
JB		 6293 if (!key.p.key || !key.p.key_len)
6294 return -EINVAL;
6295 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6296 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6297 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6298 key.p.key_len != WLAN_KEY_LEN_WEP104))
6299 return -EINVAL;
6300 if (key.idx > 4)
6301 return -EINVAL;
6302 } else {
6303 key.p.key_len = 0;
6304 key.p.key = NULL;
6305 }
6306
afea0b7a
JB		 6307 if (key.idx >= 0) {
6308 int i;
6309 bool ok = false;
6310 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6311 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6312 ok = true;
6313 break;
6314 }
6315 }
4c476991
JB		 6316 if (!ok)
6317 return -EINVAL;
afea0b7a
JB		 6318 }
6319
4c476991
JB		 6320 if (!rdev->ops->auth)
6321 return -EOPNOTSUPP;
636a5d36 6322
074ac8df 6323 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6324 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6325 return -EOPNOTSUPP;
eec60b03 6326
19957bb3 6327 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6328 chan = nl80211_get_valid_chan(&rdev->wiphy,
6329 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6330 if (!chan)
4c476991 6331 return -EINVAL;
636a5d36 6332
19957bb3
JB		 6333 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6334 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6335
6336 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6337 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6338 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6339 }
6340
19957bb3 6341 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6342 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6343 return -EINVAL;
636a5d36 6344
e39e5b5e
JM		 6345 if (auth_type == NL80211_AUTHTYPE_SAE &&
6346 !info->attrs[NL80211_ATTR_SAE_DATA])
6347 return -EINVAL;
6348
6349 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6350 if (auth_type != NL80211_AUTHTYPE_SAE)
6351 return -EINVAL;
6352 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6353 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6354 /* need to include at least Auth Transaction and Status Code */
6355 if (sae_data_len < 4)
6356 return -EINVAL;
6357 }
6358
d5cdfacb
JM		 6359 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6360
95de817b
JB		 6361 /*
6362 * Since we no longer track auth state, ignore
6363 * requests to only change local state.
6364 */
6365 if (local_state_change)
6366 return 0;
6367
91bf9b26
JB		 6368 wdev_lock(dev->ieee80211_ptr);
6369 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6370 ssid, ssid_len, ie, ie_len,
6371 key.p.key, key.p.key_len, key.idx,
6372 sae_data, sae_data_len);
6373 wdev_unlock(dev->ieee80211_ptr);
6374 return err;
636a5d36
JM		 6375}
6376
c0692b8f
JB		 6377static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6378 struct genl_info *info,
3dc27d25
JB		 6379 struct cfg80211_crypto_settings *settings,
6380 int cipher_limit)
b23aa676 6381{
c0b2bbd8
JB		 6382 memset(settings, 0, sizeof(*settings));
6383
b23aa676
SO		 6384 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6385
c0692b8f
JB		 6386 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6387 u16 proto;
6388 proto = nla_get_u16(
6389 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6390 settings->control_port_ethertype = cpu_to_be16(proto);
6391 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6392 proto != ETH_P_PAE)
6393 return -EINVAL;
6394 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6395 settings->control_port_no_encrypt = true;
6396 } else
6397 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6398
b23aa676
SO		 6399 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6400 void *data;
6401 int len, i;
6402
6403 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6404 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6405 settings->n_ciphers_pairwise = len / sizeof(u32);
6406
6407 if (len % sizeof(u32))
6408 return -EINVAL;
6409
3dc27d25 6410 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6411 return -EINVAL;
6412
6413 memcpy(settings->ciphers_pairwise, data, len);
6414
6415 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6416 if (!cfg80211_supported_cipher_suite(
6417 &rdev->wiphy,
b23aa676
SO		 6418 settings->ciphers_pairwise[i]))
6419 return -EINVAL;
6420 }
6421
6422 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6423 settings->cipher_group =
6424 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6425 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6426 settings->cipher_group))
b23aa676
SO		 6427 return -EINVAL;
6428 }
6429
6430 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6431 settings->wpa_versions =
6432 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6433 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6434 return -EINVAL;
6435 }
6436
6437 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6438 void *data;
6d30240e 6439 int len;
b23aa676
SO		 6440
6441 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6442 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6443 settings->n_akm_suites = len / sizeof(u32);
6444
6445 if (len % sizeof(u32))
6446 return -EINVAL;
6447
1b9ca027
JM		 6448 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6449 return -EINVAL;
6450
b23aa676 6451 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6452 }
6453
6454 return 0;
6455}
6456
636a5d36
JM		 6457static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6458{
4c476991
JB		 6459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6460 struct net_device *dev = info->user_ptr[1];
f444de05 6461 struct ieee80211_channel *chan;
f62fab73
JB		 6462 struct cfg80211_assoc_request req = {};
6463 const u8 *bssid, *ssid;
6464 int err, ssid_len = 0;
636a5d36 6465
f4a11bb0
JB		 6466 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6467 return -EINVAL;
6468
6469 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6470 !info->attrs[NL80211_ATTR_SSID] ||
6471 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6472 return -EINVAL;
6473
4c476991
JB		 6474 if (!rdev->ops->assoc)
6475 return -EOPNOTSUPP;
636a5d36 6476
074ac8df 6477 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6478 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6479 return -EOPNOTSUPP;
eec60b03 6480
19957bb3 6481 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6482
664834de
JM		 6483 chan = nl80211_get_valid_chan(&rdev->wiphy,
6484 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6485 if (!chan)
4c476991 6486 return -EINVAL;
636a5d36 6487
19957bb3
JB		 6488 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6489 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6490
6491 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6492 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6493 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6494 }
6495
dc6382ce 6496 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6497 enum nl80211_mfp mfp =
dc6382ce 6498 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6499 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6500 req.use_mfp = true;
4c476991
JB		 6501 else if (mfp != NL80211_MFP_NO)
6502 return -EINVAL;
dc6382ce
JM		 6503 }
6504
3e5d7649 6505 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6506 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6507
7e7c8926 6508 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6509 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6510
6511 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6512 memcpy(&req.ht_capa_mask,
6513 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6514 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6515
6516 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6517 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6518 return -EINVAL;
f62fab73
JB		 6519 memcpy(&req.ht_capa,
6520 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6521 sizeof(req.ht_capa));
7e7c8926
BG		 6522 }
6523
ee2aca34 6524 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6525 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6526
6527 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6528 memcpy(&req.vht_capa_mask,
6529 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6530 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6531
6532 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6533 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6534 return -EINVAL;
f62fab73
JB		 6535 memcpy(&req.vht_capa,
6536 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6537 sizeof(req.vht_capa));
ee2aca34
JB		 6538 }
6539
f62fab73 6540 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6541 if (!err) {
6542 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6543 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6544 ssid, ssid_len, &req);
91bf9b26
JB		 6545 wdev_unlock(dev->ieee80211_ptr);
6546 }
636a5d36 6547
636a5d36
JM		 6548 return err;
6549}
6550
6551static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6552{
4c476991
JB		 6553 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6554 struct net_device *dev = info->user_ptr[1];
19957bb3 6555 const u8 *ie = NULL, *bssid;
91bf9b26 6556 int ie_len = 0, err;
19957bb3 6557 u16 reason_code;
d5cdfacb 6558 bool local_state_change;
636a5d36 6559
f4a11bb0
JB		 6560 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6561 return -EINVAL;
6562
6563 if (!info->attrs[NL80211_ATTR_MAC])
6564 return -EINVAL;
6565
6566 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6567 return -EINVAL;
6568
4c476991
JB		 6569 if (!rdev->ops->deauth)
6570 return -EOPNOTSUPP;
636a5d36 6571
074ac8df 6572 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6573 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6574 return -EOPNOTSUPP;
eec60b03 6575
19957bb3 6576 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6577
19957bb3
JB		 6578 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6579 if (reason_code == 0) {
f4a11bb0 6580 /* Reason Code 0 is reserved */
4c476991 6581 return -EINVAL;
255e737e 6582 }
636a5d36
JM		 6583
6584 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6585 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6586 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6587 }
6588
d5cdfacb
JM		 6589 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6590
91bf9b26
JB		 6591 wdev_lock(dev->ieee80211_ptr);
6592 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6593 local_state_change);
6594 wdev_unlock(dev->ieee80211_ptr);
6595 return err;
636a5d36
JM		 6596}
6597
6598static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6599{
4c476991
JB		 6600 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6601 struct net_device *dev = info->user_ptr[1];
19957bb3 6602 const u8 *ie = NULL, *bssid;
91bf9b26 6603 int ie_len = 0, err;
19957bb3 6604 u16 reason_code;
d5cdfacb 6605 bool local_state_change;
636a5d36 6606
f4a11bb0
JB		 6607 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6608 return -EINVAL;
6609
6610 if (!info->attrs[NL80211_ATTR_MAC])
6611 return -EINVAL;
6612
6613 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6614 return -EINVAL;
6615
4c476991
JB		 6616 if (!rdev->ops->disassoc)
6617 return -EOPNOTSUPP;
636a5d36 6618
074ac8df 6619 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6620 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6621 return -EOPNOTSUPP;
eec60b03 6622
19957bb3 6623 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6624
19957bb3
JB		 6625 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6626 if (reason_code == 0) {
f4a11bb0 6627 /* Reason Code 0 is reserved */
4c476991 6628 return -EINVAL;
255e737e 6629 }
636a5d36
JM		 6630
6631 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6632 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6633 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6634 }
6635
d5cdfacb
JM		 6636 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6637
91bf9b26
JB		 6638 wdev_lock(dev->ieee80211_ptr);
6639 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6640 local_state_change);
6641 wdev_unlock(dev->ieee80211_ptr);
6642 return err;
636a5d36
JM		 6643}
6644
dd5b4cc7
FF		 6645static bool
6646nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6647 int mcast_rate[IEEE80211_NUM_BANDS],
6648 int rateval)
6649{
6650 struct wiphy *wiphy = &rdev->wiphy;
6651 bool found = false;
6652 int band, i;
6653
6654 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6655 struct ieee80211_supported_band *sband;
6656
6657 sband = wiphy->bands[band];
6658 if (!sband)
6659 continue;
6660
6661 for (i = 0; i < sband->n_bitrates; i++) {
6662 if (sband->bitrates[i].bitrate == rateval) {
6663 mcast_rate[band] = i + 1;
6664 found = true;
6665 break;
6666 }
6667 }
6668 }
6669
6670 return found;
6671}
6672
04a773ad
JB		 6673static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6674{
4c476991
JB		 6675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6676 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6677 struct cfg80211_ibss_params ibss;
6678 struct wiphy *wiphy;
fffd0934 6679 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6680 int err;
6681
8e30bc55
JB		 6682 memset(&ibss, 0, sizeof(ibss));
6683
04a773ad
JB		 6684 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6685 return -EINVAL;
6686
683b6d3b 6687 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6688 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6689 return -EINVAL;
6690
8e30bc55
JB		 6691 ibss.beacon_interval = 100;
6692
6693 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6694 ibss.beacon_interval =
6695 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6696 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6697 return -EINVAL;
6698 }
6699
4c476991
JB		 6700 if (!rdev->ops->join_ibss)
6701 return -EOPNOTSUPP;
04a773ad 6702
4c476991
JB		 6703 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6704 return -EOPNOTSUPP;
04a773ad 6705
79c97e97 6706 wiphy = &rdev->wiphy;
04a773ad 6707
39193498 6708 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6709 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6710
6711 if (!is_valid_ether_addr(ibss.bssid))
6712 return -EINVAL;
6713 }
04a773ad
JB		 6714 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6715 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6716
6717 if (info->attrs[NL80211_ATTR_IE]) {
6718 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6719 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6720 }
6721
683b6d3b
JB		 6722 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6723 if (err)
6724 return err;
04a773ad 6725
174e0cd2
IP		 6726 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6727 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6728 return -EINVAL;
6729
2f301ab2 6730 switch (ibss.chandef.width) {
bf372645
SW		 6731 case NL80211_CHAN_WIDTH_5:
6732 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6733 case NL80211_CHAN_WIDTH_20_NOHT:
6734 break;
6735 case NL80211_CHAN_WIDTH_20:
6736 case NL80211_CHAN_WIDTH_40:
6737 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6738 break;
6739 default:
c04d6150 6740 return -EINVAL;
2f301ab2 6741 }
db9c64cf 6742
04a773ad 6743 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6744 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6745
fbd2c8dc
TP		 6746 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6747 u8 *rates =
6748 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6749 int n_rates =
6750 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6751 struct ieee80211_supported_band *sband =
683b6d3b 6752 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6753
34850ab2
JB		 6754 err = ieee80211_get_ratemask(sband, rates, n_rates,
6755 &ibss.basic_rates);
6756 if (err)
6757 return err;
fbd2c8dc 6758 }
dd5b4cc7 6759
803768f5
SW		 6760 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6761 memcpy(&ibss.ht_capa_mask,
6762 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6763 sizeof(ibss.ht_capa_mask));
6764
6765 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6766 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6767 return -EINVAL;
6768 memcpy(&ibss.ht_capa,
6769 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6770 sizeof(ibss.ht_capa));
6771 }
6772
dd5b4cc7
FF		 6773 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6774 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6775 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6776 return -EINVAL;
fbd2c8dc 6777
4c476991 6778 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6779 bool no_ht = false;
6780
4c476991 6781 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6782 info->attrs[NL80211_ATTR_KEYS],
6783 &no_ht);
4c476991
JB		 6784 if (IS_ERR(connkeys))
6785 return PTR_ERR(connkeys);
de7044ee 6786
3d9d1d66
JB		 6787 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6788 no_ht) {
de7044ee
SM		 6789 kfree(connkeys);
6790 return -EINVAL;
6791 }
4c476991 6792 }
04a773ad 6793
267335d6
AQ		 6794 ibss.control_port =
6795 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6796
5336fa88
SW		 6797 ibss.userspace_handles_dfs =
6798 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6799
4c476991 6800 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6801 if (err)
6802 kfree(connkeys);
04a773ad
JB		 6803 return err;
6804}
6805
6806static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6807{
4c476991
JB		 6808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6809 struct net_device *dev = info->user_ptr[1];
04a773ad 6810
4c476991
JB		 6811 if (!rdev->ops->leave_ibss)
6812 return -EOPNOTSUPP;
04a773ad 6813
4c476991
JB		 6814 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6815 return -EOPNOTSUPP;
04a773ad 6816
4c476991 6817 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6818}
6819
f4e583c8
AQ		 6820static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6821{
6822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6823 struct net_device *dev = info->user_ptr[1];
6824 int mcast_rate[IEEE80211_NUM_BANDS];
6825 u32 nla_rate;
6826 int err;
6827
6828 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6829 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6830 return -EOPNOTSUPP;
6831
6832 if (!rdev->ops->set_mcast_rate)
6833 return -EOPNOTSUPP;
6834
6835 memset(mcast_rate, 0, sizeof(mcast_rate));
6836
6837 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6838 return -EINVAL;
6839
6840 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6841 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6842 return -EINVAL;
6843
6844 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6845
6846 return err;
6847}
6848
ad7e718c
JB		 6849static struct sk_buff *
6850__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6851 int approxlen, u32 portid, u32 seq,
6852 enum nl80211_commands cmd,
567ffc35
JB		 6853 enum nl80211_attrs attr,
6854 const struct nl80211_vendor_cmd_info *info,
6855 gfp_t gfp)
ad7e718c
JB		 6856{
6857 struct sk_buff *skb;
6858 void *hdr;
6859 struct nlattr *data;
6860
6861 skb = nlmsg_new(approxlen + 100, gfp);
6862 if (!skb)
6863 return NULL;
6864
6865 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6866 if (!hdr) {
6867 kfree_skb(skb);
6868 return NULL;
6869 }
6870
6871 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6872 goto nla_put_failure;
567ffc35
JB		 6873
6874 if (info) {
6875 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6876 info->vendor_id))
6877 goto nla_put_failure;
6878 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6879 info->subcmd))
6880 goto nla_put_failure;
6881 }
6882
ad7e718c
JB		 6883 data = nla_nest_start(skb, attr);
6884
6885 ((void **)skb->cb)[0] = rdev;
6886 ((void **)skb->cb)[1] = hdr;
6887 ((void **)skb->cb)[2] = data;
6888
6889 return skb;
6890
6891 nla_put_failure:
6892 kfree_skb(skb);
6893 return NULL;
6894}
f4e583c8 6895
e03ad6ea
JB		 6896struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6897 enum nl80211_commands cmd,
6898 enum nl80211_attrs attr,
6899 int vendor_event_idx,
6900 int approxlen, gfp_t gfp)
6901{
f26cbf40 6902 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 6903 const struct nl80211_vendor_cmd_info *info;
6904
6905 switch (cmd) {
6906 case NL80211_CMD_TESTMODE:
6907 if (WARN_ON(vendor_event_idx != -1))
6908 return NULL;
6909 info = NULL;
6910 break;
6911 case NL80211_CMD_VENDOR:
6912 if (WARN_ON(vendor_event_idx < 0 ||
6913 vendor_event_idx >= wiphy->n_vendor_events))
6914 return NULL;
6915 info = &wiphy->vendor_events[vendor_event_idx];
6916 break;
6917 default:
6918 WARN_ON(1);
6919 return NULL;
6920 }
6921
6922 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6923 cmd, attr, info, gfp);
6924}
6925EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6926
6927void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6928{
6929 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6930 void *hdr = ((void **)skb->cb)[1];
6931 struct nlattr *data = ((void **)skb->cb)[2];
6932 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6933
6934 nla_nest_end(skb, data);
6935 genlmsg_end(skb, hdr);
6936
6937 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6938 mcgrp = NL80211_MCGRP_VENDOR;
6939
6940 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6941 mcgrp, gfp);
6942}
6943EXPORT_SYMBOL(__cfg80211_send_event_skb);
6944
aff89a9b 6945#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6946static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6947{
4c476991 6948 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6949 struct wireless_dev *wdev =
6950 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6951 int err;
6952
fc73f11f
DS		 6953 if (!rdev->ops->testmode_cmd)
6954 return -EOPNOTSUPP;
6955
6956 if (IS_ERR(wdev)) {
6957 err = PTR_ERR(wdev);
6958 if (err != -EINVAL)
6959 return err;
6960 wdev = NULL;
6961 } else if (wdev->wiphy != &rdev->wiphy) {
6962 return -EINVAL;
6963 }
6964
aff89a9b
JB		 6965 if (!info->attrs[NL80211_ATTR_TESTDATA])
6966 return -EINVAL;
6967
ad7e718c 6968 rdev->cur_cmd_info = info;
fc73f11f 6969 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 6970 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6971 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 6972 rdev->cur_cmd_info = NULL;
aff89a9b 6973
aff89a9b
JB		 6974 return err;
6975}
6976
71063f0e
WYG		 6977static int nl80211_testmode_dump(struct sk_buff *skb,
6978 struct netlink_callback *cb)
6979{
00918d33 6980 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6981 int err;
6982 long phy_idx;
6983 void *data = NULL;
6984 int data_len = 0;
6985
5fe231e8
JB		 6986 rtnl_lock();
6987
71063f0e
WYG		 6988 if (cb->args[0]) {
6989 /*
6990 * 0 is a valid index, but not valid for args[0],
6991 * so we need to offset by 1.
6992 */
6993 phy_idx = cb->args[0] - 1;
6994 } else {
6995 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6996 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6997 nl80211_policy);
6998 if (err)
5fe231e8 6999 goto out_err;
00918d33 7000
2bd7e35d
JB		 7001 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7002 nl80211_fam.attrbuf);
7003 if (IS_ERR(rdev)) {
5fe231e8
JB		 7004 err = PTR_ERR(rdev);
7005 goto out_err;
00918d33 7006 }
2bd7e35d
JB		 7007 phy_idx = rdev->wiphy_idx;
7008 rdev = NULL;
2bd7e35d 7009
71063f0e
WYG		 7010 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7011 cb->args[1] =
7012 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7013 }
7014
7015 if (cb->args[1]) {
7016 data = nla_data((void *)cb->args[1]);
7017 data_len = nla_len((void *)cb->args[1]);
7018 }
7019
00918d33
JB		 7020 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7021 if (!rdev) {
5fe231e8
JB		 7022 err = -ENOENT;
7023 goto out_err;
71063f0e 7024 }
71063f0e 7025
00918d33 7026 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7027 err = -EOPNOTSUPP;
7028 goto out_err;
7029 }
7030
7031 while (1) {
15e47304 7032 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7033 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7034 NL80211_CMD_TESTMODE);
7035 struct nlattr *tmdata;
7036
cb35fba3
DC		 7037 if (!hdr)
7038 break;
7039
9360ffd1 7040 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7041 genlmsg_cancel(skb, hdr);
7042 break;
7043 }
7044
7045 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7046 if (!tmdata) {
7047 genlmsg_cancel(skb, hdr);
7048 break;
7049 }
e35e4d28 7050 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7051 nla_nest_end(skb, tmdata);
7052
7053 if (err == -ENOBUFS || err == -ENOENT) {
7054 genlmsg_cancel(skb, hdr);
7055 break;
7056 } else if (err) {
7057 genlmsg_cancel(skb, hdr);
7058 goto out_err;
7059 }
7060
7061 genlmsg_end(skb, hdr);
7062 }
7063
7064 err = skb->len;
7065 /* see above */
7066 cb->args[0] = phy_idx + 1;
7067 out_err:
5fe231e8 7068 rtnl_unlock();
71063f0e
WYG		 7069 return err;
7070}
aff89a9b
JB		 7071#endif
7072
b23aa676
SO		 7073static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7074{
4c476991
JB		 7075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7076 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7077 struct cfg80211_connect_params connect;
7078 struct wiphy *wiphy;
fffd0934 7079 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7080 int err;
7081
7082 memset(&connect, 0, sizeof(connect));
7083
7084 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7085 return -EINVAL;
7086
7087 if (!info->attrs[NL80211_ATTR_SSID] ||
7088 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7089 return -EINVAL;
7090
7091 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7092 connect.auth_type =
7093 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7094 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7095 NL80211_CMD_CONNECT))
b23aa676
SO		 7096 return -EINVAL;
7097 } else
7098 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7099
7100 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7101
c0692b8f 7102 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7103 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7104 if (err)
7105 return err;
b23aa676 7106
074ac8df 7107 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7108 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7109 return -EOPNOTSUPP;
b23aa676 7110
79c97e97 7111 wiphy = &rdev->wiphy;
b23aa676 7112
4486ea98
BS		 7113 connect.bg_scan_period = -1;
7114 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7115 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7116 connect.bg_scan_period =
7117 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7118 }
7119
b23aa676
SO		 7120 if (info->attrs[NL80211_ATTR_MAC])
7121 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7122 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7123 connect.bssid_hint =
7124 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7125 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7126 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7127
7128 if (info->attrs[NL80211_ATTR_IE]) {
7129 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7130 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7131 }
7132
cee00a95
JM		 7133 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7134 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7135 if (connect.mfp != NL80211_MFP_REQUIRED &&
7136 connect.mfp != NL80211_MFP_NO)
7137 return -EINVAL;
7138 } else {
7139 connect.mfp = NL80211_MFP_NO;
7140 }
7141
b23aa676 7142 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7143 connect.channel = nl80211_get_valid_chan(
7144 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7145 if (!connect.channel)
1df4a510
JM		 7146 return -EINVAL;
7147 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7148 connect.channel_hint = nl80211_get_valid_chan(
7149 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7150 if (!connect.channel_hint)
4c476991 7151 return -EINVAL;
b23aa676
SO		 7152 }
7153
fffd0934
JB		 7154 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7155 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7156 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7157 if (IS_ERR(connkeys))
7158 return PTR_ERR(connkeys);
fffd0934
JB		 7159 }
7160
7e7c8926
BG		 7161 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7162 connect.flags |= ASSOC_REQ_DISABLE_HT;
7163
7164 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7165 memcpy(&connect.ht_capa_mask,
7166 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7167 sizeof(connect.ht_capa_mask));
7168
7169 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7170 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7171 kfree(connkeys);
7e7c8926 7172 return -EINVAL;
b4e4f47e 7173 }
7e7c8926
BG		 7174 memcpy(&connect.ht_capa,
7175 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7176 sizeof(connect.ht_capa));
7177 }
7178
ee2aca34
JB		 7179 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7180 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7181
7182 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7183 memcpy(&connect.vht_capa_mask,
7184 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7185 sizeof(connect.vht_capa_mask));
7186
7187 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7188 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7189 kfree(connkeys);
7190 return -EINVAL;
7191 }
7192 memcpy(&connect.vht_capa,
7193 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7194 sizeof(connect.vht_capa));
7195 }
7196
83739b03
JB		 7197 wdev_lock(dev->ieee80211_ptr);
7198 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7199 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7200 if (err)
7201 kfree(connkeys);
b23aa676
SO		 7202 return err;
7203}
7204
7205static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7206{
4c476991
JB		 7207 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7208 struct net_device *dev = info->user_ptr[1];
b23aa676 7209 u16 reason;
83739b03 7210 int ret;
b23aa676
SO		 7211
7212 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7213 reason = WLAN_REASON_DEAUTH_LEAVING;
7214 else
7215 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7216
7217 if (reason == 0)
7218 return -EINVAL;
7219
074ac8df 7220 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7221 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7222 return -EOPNOTSUPP;
b23aa676 7223
83739b03
JB		 7224 wdev_lock(dev->ieee80211_ptr);
7225 ret = cfg80211_disconnect(rdev, dev, reason, true);
7226 wdev_unlock(dev->ieee80211_ptr);
7227 return ret;
b23aa676
SO		 7228}
7229
463d0183
JB		 7230static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7231{
4c476991 7232 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7233 struct net *net;
7234 int err;
7235 u32 pid;
7236
7237 if (!info->attrs[NL80211_ATTR_PID])
7238 return -EINVAL;
7239
7240 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7241
463d0183 7242 net = get_net_ns_by_pid(pid);
4c476991
JB		 7243 if (IS_ERR(net))
7244 return PTR_ERR(net);
463d0183
JB		 7245
7246 err = 0;
7247
7248 /* check if anything to do */
4c476991
JB		 7249 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7250 err = cfg80211_switch_netns(rdev, net);
463d0183 7251
463d0183 7252 put_net(net);
463d0183
JB		 7253 return err;
7254}
7255
67fbb16b
SO		 7256static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7257{
4c476991 7258 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7259 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7260 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7261 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7262 struct cfg80211_pmksa pmksa;
7263
7264 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7265
7266 if (!info->attrs[NL80211_ATTR_MAC])
7267 return -EINVAL;
7268
7269 if (!info->attrs[NL80211_ATTR_PMKID])
7270 return -EINVAL;
7271
67fbb16b
SO		 7272 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7273 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7274
074ac8df 7275 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7276 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7277 return -EOPNOTSUPP;
67fbb16b
SO		 7278
7279 switch (info->genlhdr->cmd) {
7280 case NL80211_CMD_SET_PMKSA:
7281 rdev_ops = rdev->ops->set_pmksa;
7282 break;
7283 case NL80211_CMD_DEL_PMKSA:
7284 rdev_ops = rdev->ops->del_pmksa;
7285 break;
7286 default:
7287 WARN_ON(1);
7288 break;
7289 }
7290
4c476991
JB		 7291 if (!rdev_ops)
7292 return -EOPNOTSUPP;
67fbb16b 7293
4c476991 7294 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7295}
7296
7297static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7298{
4c476991
JB		 7299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7300 struct net_device *dev = info->user_ptr[1];
67fbb16b 7301
074ac8df 7302 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7303 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7304 return -EOPNOTSUPP;
67fbb16b 7305
4c476991
JB		 7306 if (!rdev->ops->flush_pmksa)
7307 return -EOPNOTSUPP;
67fbb16b 7308
e35e4d28 7309 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7310}
7311
109086ce
AN		 7312static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7313{
7314 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7315 struct net_device *dev = info->user_ptr[1];
7316 u8 action_code, dialog_token;
df942e7b 7317 u32 peer_capability = 0;
109086ce
AN		 7318 u16 status_code;
7319 u8 *peer;
7320
7321 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7322 !rdev->ops->tdls_mgmt)
7323 return -EOPNOTSUPP;
7324
7325 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7326 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7327 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7328 !info->attrs[NL80211_ATTR_IE] ||
7329 !info->attrs[NL80211_ATTR_MAC])
7330 return -EINVAL;
7331
7332 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7333 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7334 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7335 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
df942e7b
SDU		 7336 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7337 peer_capability =
7338 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7339
e35e4d28 7340 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7341 dialog_token, status_code, peer_capability,
e35e4d28
HG		 7342 nla_data(info->attrs[NL80211_ATTR_IE]),
7343 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7344}
7345
7346static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7347{
7348 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7349 struct net_device *dev = info->user_ptr[1];
7350 enum nl80211_tdls_operation operation;
7351 u8 *peer;
7352
7353 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7354 !rdev->ops->tdls_oper)
7355 return -EOPNOTSUPP;
7356
7357 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7358 !info->attrs[NL80211_ATTR_MAC])
7359 return -EINVAL;
7360
7361 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7362 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7363
e35e4d28 7364 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7365}
7366
9588bbd5
JM		 7367static int nl80211_remain_on_channel(struct sk_buff *skb,
7368 struct genl_info *info)
7369{
4c476991 7370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7371 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7372 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7373 struct sk_buff *msg;
7374 void *hdr;
7375 u64 cookie;
683b6d3b 7376 u32 duration;
9588bbd5
JM		 7377 int err;
7378
7379 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7380 !info->attrs[NL80211_ATTR_DURATION])
7381 return -EINVAL;
7382
7383 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7384
ebf348fc
JB		 7385 if (!rdev->ops->remain_on_channel ||
7386 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7387 return -EOPNOTSUPP;
7388
9588bbd5 7389 /*
ebf348fc
JB		 7390 * We should be on that channel for at least a minimum amount of
7391 * time (10ms) but no longer than the driver supports.
9588bbd5 7392 */
ebf348fc 7393 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7394 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7395 return -EINVAL;
7396
683b6d3b
JB		 7397 err = nl80211_parse_chandef(rdev, info, &chandef);
7398 if (err)
7399 return err;
9588bbd5
JM		 7400
7401 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7402 if (!msg)
7403 return -ENOMEM;
9588bbd5 7404
15e47304 7405 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7406 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7407 if (!hdr) {
7408 err = -ENOBUFS;
9588bbd5
JM		 7409 goto free_msg;
7410 }
7411
683b6d3b
JB		 7412 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7413 duration, &cookie);
9588bbd5
JM		 7414
7415 if (err)
7416 goto free_msg;
7417
9360ffd1
DM		 7418 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7419 goto nla_put_failure;
9588bbd5
JM		 7420
7421 genlmsg_end(msg, hdr);
4c476991
JB		 7422
7423 return genlmsg_reply(msg, info);
9588bbd5
JM		 7424
7425 nla_put_failure:
7426 err = -ENOBUFS;
7427 free_msg:
7428 nlmsg_free(msg);
9588bbd5
JM		 7429 return err;
7430}
7431
7432static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7433 struct genl_info *info)
7434{
4c476991 7435 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7436 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7437 u64 cookie;
9588bbd5
JM		 7438
7439 if (!info->attrs[NL80211_ATTR_COOKIE])
7440 return -EINVAL;
7441
4c476991
JB		 7442 if (!rdev->ops->cancel_remain_on_channel)
7443 return -EOPNOTSUPP;
9588bbd5 7444
9588bbd5
JM		 7445 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7446
e35e4d28 7447 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7448}
7449
13ae75b1
JM		 7450static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7451 u8 *rates, u8 rates_len)
7452{
7453 u8 i;
7454 u32 mask = 0;
7455
7456 for (i = 0; i < rates_len; i++) {
7457 int rate = (rates[i] & 0x7f) * 5;
7458 int ridx;
7459 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7460 struct ieee80211_rate *srate =
7461 &sband->bitrates[ridx];
7462 if (rate == srate->bitrate) {
7463 mask |= 1 << ridx;
7464 break;
7465 }
7466 }
7467 if (ridx == sband->n_bitrates)
7468 return 0; /* rate not found */
7469 }
7470
7471 return mask;
7472}
7473
24db78c0
SW		 7474static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7475 u8 *rates, u8 rates_len,
7476 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7477{
7478 u8 i;
7479
7480 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7481
7482 for (i = 0; i < rates_len; i++) {
7483 int ridx, rbit;
7484
7485 ridx = rates[i] / 8;
7486 rbit = BIT(rates[i] % 8);
7487
7488 /* check validity */
910570b5 7489 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7490 return false;
7491
7492 /* check availability */
7493 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7494 mcs[ridx] |= rbit;
7495 else
7496 return false;
7497 }
7498
7499 return true;
7500}
7501
204e35a9
JD		 7502static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7503{
7504 u16 mcs_mask = 0;
7505
7506 switch (vht_mcs_map) {
7507 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7508 break;
7509 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7510 mcs_mask = 0x00FF;
7511 break;
7512 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7513 mcs_mask = 0x01FF;
7514 break;
7515 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7516 mcs_mask = 0x03FF;
7517 break;
7518 default:
7519 break;
7520 }
7521
7522 return mcs_mask;
7523}
7524
7525static void vht_build_mcs_mask(u16 vht_mcs_map,
7526 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7527{
7528 u8 nss;
7529
7530 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7531 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7532 vht_mcs_map >>= 2;
7533 }
7534}
7535
7536static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7537 struct nl80211_txrate_vht *txrate,
7538 u16 mcs[NL80211_VHT_NSS_MAX])
7539{
7540 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7541 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7542 u8 i;
7543
7544 if (!sband->vht_cap.vht_supported)
7545 return false;
7546
7547 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7548
7549 /* Build vht_mcs_mask from VHT capabilities */
7550 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7551
7552 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7553 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7554 mcs[i] = txrate->mcs[i];
7555 else
7556 return false;
7557 }
7558
7559 return true;
7560}
7561
b54452b0 7562static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7563 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7564 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7565 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7566 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7567 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7568 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7569};
7570
7571static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7572 struct genl_info *info)
7573{
7574 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7576 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7577 int rem, i;
7578 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7579 struct nlattr *tx_rates;
7580 struct ieee80211_supported_band *sband;
204e35a9 7581 u16 vht_tx_mcs_map;
13ae75b1 7582
4c476991
JB		 7583 if (!rdev->ops->set_bitrate_mask)
7584 return -EOPNOTSUPP;
13ae75b1
JM		 7585
7586 memset(&mask, 0, sizeof(mask));
7587 /* Default to all rates enabled */
7588 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7589 sband = rdev->wiphy.bands[i];
7869303b
JD		 7590
7591 if (!sband)
7592 continue;
7593
7594 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7595 memcpy(mask.control[i].ht_mcs,
7869303b 7596 sband->ht_cap.mcs.rx_mask,
d1e33e65 7597 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7598
7599 if (!sband->vht_cap.vht_supported)
7600 continue;
7601
7602 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7603 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7604 }
7605
b9243ab0
JD		 7606 /* if no rates are given set it back to the defaults */
7607 if (!info->attrs[NL80211_ATTR_TX_RATES])
7608 goto out;
7609
13ae75b1
JM		 7610 /*
7611 * The nested attribute uses enum nl80211_band as the index. This maps
7612 * directly to the enum ieee80211_band values used in cfg80211.
7613 */
24db78c0 7614 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7615 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7616 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7617 int err;
7618
4c476991
JB		 7619 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7620 return -EINVAL;
13ae75b1 7621 sband = rdev->wiphy.bands[band];
4c476991
JB		 7622 if (sband == NULL)
7623 return -EINVAL;
ae811e21
JB		 7624 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7625 nla_len(tx_rates), nl80211_txattr_policy);
7626 if (err)
7627 return err;
13ae75b1
JM		 7628 if (tb[NL80211_TXRATE_LEGACY]) {
7629 mask.control[band].legacy = rateset_to_mask(
7630 sband,
7631 nla_data(tb[NL80211_TXRATE_LEGACY]),
7632 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7633 if ((mask.control[band].legacy == 0) &&
7634 nla_len(tb[NL80211_TXRATE_LEGACY]))
7635 return -EINVAL;
24db78c0 7636 }
d1e33e65 7637 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7638 if (!ht_rateset_to_mask(
7639 sband,
d1e33e65
JD		 7640 nla_data(tb[NL80211_TXRATE_HT]),
7641 nla_len(tb[NL80211_TXRATE_HT]),
7642 mask.control[band].ht_mcs))
24db78c0
SW		 7643 return -EINVAL;
7644 }
204e35a9
JD		 7645 if (tb[NL80211_TXRATE_VHT]) {
7646 if (!vht_set_mcs_mask(
7647 sband,
7648 nla_data(tb[NL80211_TXRATE_VHT]),
7649 mask.control[band].vht_mcs))
7650 return -EINVAL;
7651 }
0b9323f6
JD		 7652 if (tb[NL80211_TXRATE_GI]) {
7653 mask.control[band].gi =
7654 nla_get_u8(tb[NL80211_TXRATE_GI]);
7655 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7656 return -EINVAL;
7657 }
24db78c0
SW		 7658
7659 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7660 /* don't allow empty legacy rates if HT or VHT
7661 * are not even supported.
7662 */
7663 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7664 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7665 return -EINVAL;
7666
7667 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7668 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7669 goto out;
7670
7671 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7672 if (mask.control[band].vht_mcs[i])
7673 goto out;
24db78c0
SW		 7674
7675 /* legacy and mcs rates may not be both empty */
204e35a9 7676 return -EINVAL;
13ae75b1
JM		 7677 }
7678 }
7679
b9243ab0 7680out:
e35e4d28 7681 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7682}
7683
2e161f78 7684static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7685{
4c476991 7686 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7687 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7688 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7689
7690 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7691 return -EINVAL;
7692
2e161f78
JB		 7693 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7694 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7695
71bbc994
JB		 7696 switch (wdev->iftype) {
7697 case NL80211_IFTYPE_STATION:
7698 case NL80211_IFTYPE_ADHOC:
7699 case NL80211_IFTYPE_P2P_CLIENT:
7700 case NL80211_IFTYPE_AP:
7701 case NL80211_IFTYPE_AP_VLAN:
7702 case NL80211_IFTYPE_MESH_POINT:
7703 case NL80211_IFTYPE_P2P_GO:
98104fde 7704 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7705 break;
7706 default:
4c476991 7707 return -EOPNOTSUPP;
71bbc994 7708 }
026331c4
JM		 7709
7710 /* not much point in registering if we can't reply */
4c476991
JB		 7711 if (!rdev->ops->mgmt_tx)
7712 return -EOPNOTSUPP;
026331c4 7713
15e47304 7714 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7715 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7716 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7717}
7718
2e161f78 7719static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7720{
4c476991 7721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7722 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7723 struct cfg80211_chan_def chandef;
026331c4 7724 int err;
d64d373f 7725 void *hdr = NULL;
026331c4 7726 u64 cookie;
e247bd90 7727 struct sk_buff *msg = NULL;
b176e629
AO		 7728 struct cfg80211_mgmt_tx_params params = {
7729 .dont_wait_for_ack =
7730 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7731 };
026331c4 7732
683b6d3b 7733 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7734 return -EINVAL;
7735
4c476991
JB		 7736 if (!rdev->ops->mgmt_tx)
7737 return -EOPNOTSUPP;
026331c4 7738
71bbc994 7739 switch (wdev->iftype) {
ea141b75
AQ		 7740 case NL80211_IFTYPE_P2P_DEVICE:
7741 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7742 return -EINVAL;
71bbc994
JB		 7743 case NL80211_IFTYPE_STATION:
7744 case NL80211_IFTYPE_ADHOC:
7745 case NL80211_IFTYPE_P2P_CLIENT:
7746 case NL80211_IFTYPE_AP:
7747 case NL80211_IFTYPE_AP_VLAN:
7748 case NL80211_IFTYPE_MESH_POINT:
7749 case NL80211_IFTYPE_P2P_GO:
7750 break;
7751 default:
4c476991 7752 return -EOPNOTSUPP;
71bbc994 7753 }
026331c4 7754
f7ca38df 7755 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7756 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7757 return -EINVAL;
b176e629 7758 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7759
7760 /*
7761 * We should wait on the channel for at least a minimum amount
7762 * of time (10ms) but no longer than the driver supports.
7763 */
b176e629
AO		 7764 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7765 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7766 return -EINVAL;
7767
f7ca38df
JB		 7768 }
7769
b176e629 7770 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7771
b176e629 7772 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7773 return -EINVAL;
7774
b176e629 7775 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7776
ea141b75
AQ		 7777 /* get the channel if any has been specified, otherwise pass NULL to
7778 * the driver. The latter will use the current one
7779 */
7780 chandef.chan = NULL;
7781 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7782 err = nl80211_parse_chandef(rdev, info, &chandef);
7783 if (err)
7784 return err;
7785 }
7786
b176e629 7787 if (!chandef.chan && params.offchan)
ea141b75 7788 return -EINVAL;
026331c4 7789
34d22ce2
AO		 7790 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7791 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7792
7793 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7794 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7795 int i;
7796
7797 if (len % sizeof(u16))
7798 return -EINVAL;
7799
7800 params.n_csa_offsets = len / sizeof(u16);
7801 params.csa_offsets =
7802 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7803
7804 /* check that all the offsets fit the frame */
7805 for (i = 0; i < params.n_csa_offsets; i++) {
7806 if (params.csa_offsets[i] >= params.len)
7807 return -EINVAL;
7808 }
7809 }
7810
b176e629 7811 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7812 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7813 if (!msg)
7814 return -ENOMEM;
026331c4 7815
15e47304 7816 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7817 NL80211_CMD_FRAME);
cb35fba3
DC		 7818 if (!hdr) {
7819 err = -ENOBUFS;
e247bd90
JB		 7820 goto free_msg;
7821 }
026331c4 7822 }
e247bd90 7823
b176e629
AO		 7824 params.chan = chandef.chan;
7825 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7826 if (err)
7827 goto free_msg;
7828
e247bd90 7829 if (msg) {
9360ffd1
DM		 7830 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7831 goto nla_put_failure;
026331c4 7832
e247bd90
JB		 7833 genlmsg_end(msg, hdr);
7834 return genlmsg_reply(msg, info);
7835 }
7836
7837 return 0;
026331c4
JM		 7838
7839 nla_put_failure:
7840 err = -ENOBUFS;
7841 free_msg:
7842 nlmsg_free(msg);
026331c4
JM		 7843 return err;
7844}
7845
f7ca38df
JB		 7846static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7847{
7848 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7849 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7850 u64 cookie;
7851
7852 if (!info->attrs[NL80211_ATTR_COOKIE])
7853 return -EINVAL;
7854
7855 if (!rdev->ops->mgmt_tx_cancel_wait)
7856 return -EOPNOTSUPP;
7857
71bbc994
JB		 7858 switch (wdev->iftype) {
7859 case NL80211_IFTYPE_STATION:
7860 case NL80211_IFTYPE_ADHOC:
7861 case NL80211_IFTYPE_P2P_CLIENT:
7862 case NL80211_IFTYPE_AP:
7863 case NL80211_IFTYPE_AP_VLAN:
7864 case NL80211_IFTYPE_P2P_GO:
98104fde 7865 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7866 break;
7867 default:
f7ca38df 7868 return -EOPNOTSUPP;
71bbc994 7869 }
f7ca38df
JB		 7870
7871 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7872
e35e4d28 7873 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7874}
7875
ffb9eb3d
KV		 7876static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7877{
4c476991 7878 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7879 struct wireless_dev *wdev;
4c476991 7880 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7881 u8 ps_state;
7882 bool state;
7883 int err;
7884
4c476991
JB		 7885 if (!info->attrs[NL80211_ATTR_PS_STATE])
7886 return -EINVAL;
ffb9eb3d
KV		 7887
7888 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7889
4c476991
JB		 7890 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7891 return -EINVAL;
ffb9eb3d
KV		 7892
7893 wdev = dev->ieee80211_ptr;
7894
4c476991
JB		 7895 if (!rdev->ops->set_power_mgmt)
7896 return -EOPNOTSUPP;
ffb9eb3d
KV		 7897
7898 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7899
7900 if (state == wdev->ps)
4c476991 7901 return 0;
ffb9eb3d 7902
e35e4d28 7903 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7904 if (!err)
7905 wdev->ps = state;
ffb9eb3d
KV		 7906 return err;
7907}
7908
7909static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7910{
4c476991 7911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7912 enum nl80211_ps_state ps_state;
7913 struct wireless_dev *wdev;
4c476991 7914 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7915 struct sk_buff *msg;
7916 void *hdr;
7917 int err;
7918
ffb9eb3d
KV		 7919 wdev = dev->ieee80211_ptr;
7920
4c476991
JB		 7921 if (!rdev->ops->set_power_mgmt)
7922 return -EOPNOTSUPP;
ffb9eb3d
KV		 7923
7924 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7925 if (!msg)
7926 return -ENOMEM;
ffb9eb3d 7927
15e47304 7928 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7929 NL80211_CMD_GET_POWER_SAVE);
7930 if (!hdr) {
4c476991 7931 err = -ENOBUFS;
ffb9eb3d
KV		 7932 goto free_msg;
7933 }
7934
7935 if (wdev->ps)
7936 ps_state = NL80211_PS_ENABLED;
7937 else
7938 ps_state = NL80211_PS_DISABLED;
7939
9360ffd1
DM		 7940 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7941 goto nla_put_failure;
ffb9eb3d
KV		 7942
7943 genlmsg_end(msg, hdr);
4c476991 7944 return genlmsg_reply(msg, info);
ffb9eb3d 7945
4c476991 7946 nla_put_failure:
ffb9eb3d 7947 err = -ENOBUFS;
4c476991 7948 free_msg:
ffb9eb3d 7949 nlmsg_free(msg);
ffb9eb3d
KV		 7950 return err;
7951}
7952
94e860f1
JB		 7953static const struct nla_policy
7954nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 7955 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7956 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7957 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7958 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7959 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7960 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7961};
7962
84f10708 7963static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7964 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7965{
7966 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 7967 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7968 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 7969
d9d8b019 7970 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7971 return -EINVAL;
7972
84f10708
TP		 7973 if (!rdev->ops->set_cqm_txe_config)
7974 return -EOPNOTSUPP;
7975
7976 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7977 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7978 return -EOPNOTSUPP;
7979
e35e4d28 7980 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7981}
7982
d6dc1a38
JO		 7983static int nl80211_set_cqm_rssi(struct genl_info *info,
7984 s32 threshold, u32 hysteresis)
7985{
4c476991 7986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 7987 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7988 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 7989
7990 if (threshold > 0)
7991 return -EINVAL;
7992
1da5fcc8
JB		 7993 /* disabling - hysteresis should also be zero then */
7994 if (threshold == 0)
7995 hysteresis = 0;
d6dc1a38 7996
4c476991
JB		 7997 if (!rdev->ops->set_cqm_rssi_config)
7998 return -EOPNOTSUPP;
d6dc1a38 7999
074ac8df 8000 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8001 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8002 return -EOPNOTSUPP;
d6dc1a38 8003
e35e4d28 8004 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8005}
8006
8007static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8008{
8009 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8010 struct nlattr *cqm;
8011 int err;
8012
8013 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8014 if (!cqm)
8015 return -EINVAL;
d6dc1a38
JO		 8016
8017 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8018 nl80211_attr_cqm_policy);
8019 if (err)
1da5fcc8 8020 return err;
d6dc1a38
JO		 8021
8022 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8023 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8024 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8025 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8026
1da5fcc8
JB		 8027 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8028 }
8029
8030 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8031 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8032 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8033 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8034 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8035 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8036
8037 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8038 }
8039
8040 return -EINVAL;
d6dc1a38
JO		 8041}
8042
29cbe68c
JB		 8043static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8044{
8045 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8046 struct net_device *dev = info->user_ptr[1];
8047 struct mesh_config cfg;
c80d545d 8048 struct mesh_setup setup;
29cbe68c
JB		 8049 int err;
8050
8051 /* start with default */
8052 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8053 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8054
24bdd9f4 8055 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8056 /* and parse parameters if given */
24bdd9f4 8057 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8058 if (err)
8059 return err;
8060 }
8061
8062 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8063 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8064 return -EINVAL;
8065
c80d545d
JC		 8066 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8067 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8068
4bb62344
CYY		 8069 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8070 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8071 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8072 return -EINVAL;
8073
9bdbf04d
MP		 8074 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8075 setup.beacon_interval =
8076 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8077 if (setup.beacon_interval < 10 ||
8078 setup.beacon_interval > 10000)
8079 return -EINVAL;
8080 }
8081
8082 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8083 setup.dtim_period =
8084 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8085 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8086 return -EINVAL;
8087 }
8088
c80d545d
JC		 8089 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8090 /* parse additional setup parameters if given */
8091 err = nl80211_parse_mesh_setup(info, &setup);
8092 if (err)
8093 return err;
8094 }
8095
d37bb18a
TP		 8096 if (setup.user_mpm)
8097 cfg.auto_open_plinks = false;
8098
cc1d2806 8099 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8100 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8101 if (err)
8102 return err;
cc1d2806
JB		 8103 } else {
8104 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8105 setup.chandef.chan = NULL;
cc1d2806
JB		 8106 }
8107
ffb3cf30
AN		 8108 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8109 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8110 int n_rates =
8111 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8112 struct ieee80211_supported_band *sband;
8113
8114 if (!setup.chandef.chan)
8115 return -EINVAL;
8116
8117 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8118
8119 err = ieee80211_get_ratemask(sband, rates, n_rates,
8120 &setup.basic_rates);
8121 if (err)
8122 return err;
8123 }
8124
c80d545d 8125 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8126}
8127
8128static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8129{
8130 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8131 struct net_device *dev = info->user_ptr[1];
8132
8133 return cfg80211_leave_mesh(rdev, dev);
8134}
8135
dfb89c56 8136#ifdef CONFIG_PM
bb92d199
AK		 8137static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8138 struct cfg80211_registered_device *rdev)
8139{
6abb9cb9 8140 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8141 struct nlattr *nl_pats, *nl_pat;
8142 int i, pat_len;
8143
6abb9cb9 8144 if (!wowlan->n_patterns)
bb92d199
AK		 8145 return 0;
8146
8147 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8148 if (!nl_pats)
8149 return -ENOBUFS;
8150
6abb9cb9 8151 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8152 nl_pat = nla_nest_start(msg, i + 1);
8153 if (!nl_pat)
8154 return -ENOBUFS;
6abb9cb9 8155 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8156 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8157 wowlan->patterns[i].mask) ||
50ac6607
AK		 8158 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8159 wowlan->patterns[i].pattern) ||
8160 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8161 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8162 return -ENOBUFS;
8163 nla_nest_end(msg, nl_pat);
8164 }
8165 nla_nest_end(msg, nl_pats);
8166
8167 return 0;
8168}
8169
2a0e047e
JB		 8170static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8171 struct cfg80211_wowlan_tcp *tcp)
8172{
8173 struct nlattr *nl_tcp;
8174
8175 if (!tcp)
8176 return 0;
8177
8178 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8179 if (!nl_tcp)
8180 return -ENOBUFS;
8181
8182 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8183 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8184 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8185 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8186 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8187 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8188 tcp->payload_len, tcp->payload) ||
8189 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8190 tcp->data_interval) ||
8191 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8192 tcp->wake_len, tcp->wake_data) ||
8193 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8194 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8195 return -ENOBUFS;
8196
8197 if (tcp->payload_seq.len &&
8198 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8199 sizeof(tcp->payload_seq), &tcp->payload_seq))
8200 return -ENOBUFS;
8201
8202 if (tcp->payload_tok.len &&
8203 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8204 sizeof(tcp->payload_tok) + tcp->tokens_size,
8205 &tcp->payload_tok))
8206 return -ENOBUFS;
8207
e248ad30
JB		 8208 nla_nest_end(msg, nl_tcp);
8209
2a0e047e
JB		 8210 return 0;
8211}
8212
ff1b6e69
JB		 8213static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8214{
8215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8216 struct sk_buff *msg;
8217 void *hdr;
2a0e047e 8218 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8219
964dc9e2 8220 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8221 return -EOPNOTSUPP;
8222
6abb9cb9 8223 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8224 /* adjust size to have room for all the data */
6abb9cb9
JB		 8225 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8226 rdev->wiphy.wowlan_config->tcp->payload_len +
8227 rdev->wiphy.wowlan_config->tcp->wake_len +
8228 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8229 }
8230
8231 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8232 if (!msg)
8233 return -ENOMEM;
8234
15e47304 8235 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8236 NL80211_CMD_GET_WOWLAN);
8237 if (!hdr)
8238 goto nla_put_failure;
8239
6abb9cb9 8240 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8241 struct nlattr *nl_wowlan;
8242
8243 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8244 if (!nl_wowlan)
8245 goto nla_put_failure;
8246
6abb9cb9 8247 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8248 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8249 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8250 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8251 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8252 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8253 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8254 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8255 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8256 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8257 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8258 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8259 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8260 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8261 goto nla_put_failure;
2a0e047e 8262
bb92d199
AK		 8263 if (nl80211_send_wowlan_patterns(msg, rdev))
8264 goto nla_put_failure;
2a0e047e 8265
6abb9cb9
JB		 8266 if (nl80211_send_wowlan_tcp(msg,
8267 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8268 goto nla_put_failure;
8269
ff1b6e69
JB		 8270 nla_nest_end(msg, nl_wowlan);
8271 }
8272
8273 genlmsg_end(msg, hdr);
8274 return genlmsg_reply(msg, info);
8275
8276nla_put_failure:
8277 nlmsg_free(msg);
8278 return -ENOBUFS;
8279}
8280
2a0e047e
JB		 8281static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8282 struct nlattr *attr,
8283 struct cfg80211_wowlan *trig)
8284{
8285 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8286 struct cfg80211_wowlan_tcp *cfg;
8287 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8288 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8289 u32 size;
8290 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8291 int err, port;
8292
964dc9e2 8293 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8294 return -EINVAL;
8295
8296 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8297 nla_data(attr), nla_len(attr),
8298 nl80211_wowlan_tcp_policy);
8299 if (err)
8300 return err;
8301
8302 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8303 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8304 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8305 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8306 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8307 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8308 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8309 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8310 return -EINVAL;
8311
8312 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8313 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8314 return -EINVAL;
8315
8316 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8317 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8318 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8319 return -EINVAL;
8320
8321 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8322 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8323 return -EINVAL;
8324
8325 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8326 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8327 return -EINVAL;
8328
8329 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8330 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8331
8332 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8333 tokens_size = tokln - sizeof(*tok);
8334
8335 if (!tok->len || tokens_size % tok->len)
8336 return -EINVAL;
964dc9e2 8337 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8338 return -EINVAL;
964dc9e2 8339 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8340 return -EINVAL;
964dc9e2 8341 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8342 return -EINVAL;
964dc9e2 8343 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8344 return -EINVAL;
8345 if (tok->offset + tok->len > data_size)
8346 return -EINVAL;
8347 }
8348
8349 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8350 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8351 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8352 return -EINVAL;
8353 if (seq->len == 0 || seq->len > 4)
8354 return -EINVAL;
8355 if (seq->len + seq->offset > data_size)
8356 return -EINVAL;
8357 }
8358
8359 size = sizeof(*cfg);
8360 size += data_size;
8361 size += wake_size + wake_mask_size;
8362 size += tokens_size;
8363
8364 cfg = kzalloc(size, GFP_KERNEL);
8365 if (!cfg)
8366 return -ENOMEM;
8367 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8368 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8369 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8370 ETH_ALEN);
8371 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8372 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8373 else
8374 port = 0;
8375#ifdef CONFIG_INET
8376 /* allocate a socket and port for it and use it */
8377 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8378 IPPROTO_TCP, &cfg->sock, 1);
8379 if (err) {
8380 kfree(cfg);
8381 return err;
8382 }
8383 if (inet_csk_get_port(cfg->sock->sk, port)) {
8384 sock_release(cfg->sock);
8385 kfree(cfg);
8386 return -EADDRINUSE;
8387 }
8388 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8389#else
8390 if (!port) {
8391 kfree(cfg);
8392 return -EINVAL;
8393 }
8394 cfg->src_port = port;
8395#endif
8396
8397 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8398 cfg->payload_len = data_size;
8399 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8400 memcpy((void *)cfg->payload,
8401 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8402 data_size);
8403 if (seq)
8404 cfg->payload_seq = *seq;
8405 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8406 cfg->wake_len = wake_size;
8407 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8408 memcpy((void *)cfg->wake_data,
8409 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8410 wake_size);
8411 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8412 data_size + wake_size;
8413 memcpy((void *)cfg->wake_mask,
8414 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8415 wake_mask_size);
8416 if (tok) {
8417 cfg->tokens_size = tokens_size;
8418 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8419 }
8420
8421 trig->tcp = cfg;
8422
8423 return 0;
8424}
8425
ff1b6e69
JB		 8426static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8427{
8428 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8429 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8430 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8431 struct cfg80211_wowlan *ntrig;
964dc9e2 8432 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8433 int err, i;
6abb9cb9 8434 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8435
964dc9e2 8436 if (!wowlan)
ff1b6e69
JB		 8437 return -EOPNOTSUPP;
8438
ae33bd81
JB		 8439 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8440 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8441 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8442 goto set_wakeup;
8443 }
ff1b6e69
JB		 8444
8445 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8446 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8447 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8448 nl80211_wowlan_policy);
8449 if (err)
8450 return err;
8451
8452 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8453 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8454 return -EINVAL;
8455 new_triggers.any = true;
8456 }
8457
8458 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8459 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8460 return -EINVAL;
8461 new_triggers.disconnect = true;
8462 }
8463
8464 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8465 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8466 return -EINVAL;
8467 new_triggers.magic_pkt = true;
8468 }
8469
77dbbb13
JB		 8470 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8471 return -EINVAL;
8472
8473 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8474 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8475 return -EINVAL;
8476 new_triggers.gtk_rekey_failure = true;
8477 }
8478
8479 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8480 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8481 return -EINVAL;
8482 new_triggers.eap_identity_req = true;
8483 }
8484
8485 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8486 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8487 return -EINVAL;
8488 new_triggers.four_way_handshake = true;
8489 }
8490
8491 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8492 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8493 return -EINVAL;
8494 new_triggers.rfkill_release = true;
8495 }
8496
ff1b6e69
JB		 8497 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8498 struct nlattr *pat;
8499 int n_patterns = 0;
bb92d199 8500 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8501 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8502
8503 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8504 rem)
8505 n_patterns++;
8506 if (n_patterns > wowlan->n_patterns)
8507 return -EINVAL;
8508
8509 new_triggers.patterns = kcalloc(n_patterns,
8510 sizeof(new_triggers.patterns[0]),
8511 GFP_KERNEL);
8512 if (!new_triggers.patterns)
8513 return -ENOMEM;
8514
8515 new_triggers.n_patterns = n_patterns;
8516 i = 0;
8517
8518 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8519 rem) {
50ac6607
AK		 8520 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8521 nla_len(pat), NULL);
ff1b6e69 8522 err = -EINVAL;
50ac6607
AK		 8523 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8524 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8525 goto error;
50ac6607 8526 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8527 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8528 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8529 goto error;
8530 if (pat_len > wowlan->pattern_max_len ||
8531 pat_len < wowlan->pattern_min_len)
8532 goto error;
8533
50ac6607 8534 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8535 pkt_offset = 0;
8536 else
8537 pkt_offset = nla_get_u32(
50ac6607 8538 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8539 if (pkt_offset > wowlan->max_pkt_offset)
8540 goto error;
8541 new_triggers.patterns[i].pkt_offset = pkt_offset;
8542
ff1b6e69
JB		 8543 new_triggers.patterns[i].mask =
8544 kmalloc(mask_len + pat_len, GFP_KERNEL);
8545 if (!new_triggers.patterns[i].mask) {
8546 err = -ENOMEM;
8547 goto error;
8548 }
8549 new_triggers.patterns[i].pattern =
8550 new_triggers.patterns[i].mask + mask_len;
8551 memcpy(new_triggers.patterns[i].mask,
50ac6607 8552 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8553 mask_len);
8554 new_triggers.patterns[i].pattern_len = pat_len;
8555 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8556 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8557 pat_len);
8558 i++;
8559 }
8560 }
8561
2a0e047e
JB		 8562 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8563 err = nl80211_parse_wowlan_tcp(
8564 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8565 &new_triggers);
8566 if (err)
8567 goto error;
8568 }
8569
ae33bd81
JB		 8570 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8571 if (!ntrig) {
8572 err = -ENOMEM;
8573 goto error;
ff1b6e69 8574 }
ae33bd81 8575 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8576 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8577
ae33bd81 8578 set_wakeup:
6abb9cb9
JB		 8579 if (rdev->ops->set_wakeup &&
8580 prev_enabled != !!rdev->wiphy.wowlan_config)
8581 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8582
ff1b6e69
JB		 8583 return 0;
8584 error:
8585 for (i = 0; i < new_triggers.n_patterns; i++)
8586 kfree(new_triggers.patterns[i].mask);
8587 kfree(new_triggers.patterns);
2a0e047e
JB		 8588 if (new_triggers.tcp && new_triggers.tcp->sock)
8589 sock_release(new_triggers.tcp->sock);
8590 kfree(new_triggers.tcp);
ff1b6e69
JB		 8591 return err;
8592}
dfb89c56 8593#endif
ff1b6e69 8594
be29b99a
AK		 8595static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8596 struct cfg80211_registered_device *rdev)
8597{
8598 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8599 int i, j, pat_len;
8600 struct cfg80211_coalesce_rules *rule;
8601
8602 if (!rdev->coalesce->n_rules)
8603 return 0;
8604
8605 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8606 if (!nl_rules)
8607 return -ENOBUFS;
8608
8609 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8610 nl_rule = nla_nest_start(msg, i + 1);
8611 if (!nl_rule)
8612 return -ENOBUFS;
8613
8614 rule = &rdev->coalesce->rules[i];
8615 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8616 rule->delay))
8617 return -ENOBUFS;
8618
8619 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8620 rule->condition))
8621 return -ENOBUFS;
8622
8623 nl_pats = nla_nest_start(msg,
8624 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8625 if (!nl_pats)
8626 return -ENOBUFS;
8627
8628 for (j = 0; j < rule->n_patterns; j++) {
8629 nl_pat = nla_nest_start(msg, j + 1);
8630 if (!nl_pat)
8631 return -ENOBUFS;
8632 pat_len = rule->patterns[j].pattern_len;
8633 if (nla_put(msg, NL80211_PKTPAT_MASK,
8634 DIV_ROUND_UP(pat_len, 8),
8635 rule->patterns[j].mask) ||
8636 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8637 rule->patterns[j].pattern) ||
8638 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8639 rule->patterns[j].pkt_offset))
8640 return -ENOBUFS;
8641 nla_nest_end(msg, nl_pat);
8642 }
8643 nla_nest_end(msg, nl_pats);
8644 nla_nest_end(msg, nl_rule);
8645 }
8646 nla_nest_end(msg, nl_rules);
8647
8648 return 0;
8649}
8650
8651static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8652{
8653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8654 struct sk_buff *msg;
8655 void *hdr;
8656
8657 if (!rdev->wiphy.coalesce)
8658 return -EOPNOTSUPP;
8659
8660 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8661 if (!msg)
8662 return -ENOMEM;
8663
8664 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8665 NL80211_CMD_GET_COALESCE);
8666 if (!hdr)
8667 goto nla_put_failure;
8668
8669 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8670 goto nla_put_failure;
8671
8672 genlmsg_end(msg, hdr);
8673 return genlmsg_reply(msg, info);
8674
8675nla_put_failure:
8676 nlmsg_free(msg);
8677 return -ENOBUFS;
8678}
8679
8680void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8681{
8682 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8683 int i, j;
8684 struct cfg80211_coalesce_rules *rule;
8685
8686 if (!coalesce)
8687 return;
8688
8689 for (i = 0; i < coalesce->n_rules; i++) {
8690 rule = &coalesce->rules[i];
8691 for (j = 0; j < rule->n_patterns; j++)
8692 kfree(rule->patterns[j].mask);
8693 kfree(rule->patterns);
8694 }
8695 kfree(coalesce->rules);
8696 kfree(coalesce);
8697 rdev->coalesce = NULL;
8698}
8699
8700static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8701 struct nlattr *rule,
8702 struct cfg80211_coalesce_rules *new_rule)
8703{
8704 int err, i;
8705 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8706 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8707 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8708 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8709
8710 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8711 nla_len(rule), nl80211_coalesce_policy);
8712 if (err)
8713 return err;
8714
8715 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8716 new_rule->delay =
8717 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8718 if (new_rule->delay > coalesce->max_delay)
8719 return -EINVAL;
8720
8721 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8722 new_rule->condition =
8723 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8724 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8725 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8726 return -EINVAL;
8727
8728 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8729 return -EINVAL;
8730
8731 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8732 rem)
8733 n_patterns++;
8734 if (n_patterns > coalesce->n_patterns)
8735 return -EINVAL;
8736
8737 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8738 GFP_KERNEL);
8739 if (!new_rule->patterns)
8740 return -ENOMEM;
8741
8742 new_rule->n_patterns = n_patterns;
8743 i = 0;
8744
8745 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8746 rem) {
8747 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8748 nla_len(pat), NULL);
8749 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8750 !pat_tb[NL80211_PKTPAT_PATTERN])
8751 return -EINVAL;
8752 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8753 mask_len = DIV_ROUND_UP(pat_len, 8);
8754 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8755 return -EINVAL;
8756 if (pat_len > coalesce->pattern_max_len ||
8757 pat_len < coalesce->pattern_min_len)
8758 return -EINVAL;
8759
8760 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8761 pkt_offset = 0;
8762 else
8763 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8764 if (pkt_offset > coalesce->max_pkt_offset)
8765 return -EINVAL;
8766 new_rule->patterns[i].pkt_offset = pkt_offset;
8767
8768 new_rule->patterns[i].mask =
8769 kmalloc(mask_len + pat_len, GFP_KERNEL);
8770 if (!new_rule->patterns[i].mask)
8771 return -ENOMEM;
8772 new_rule->patterns[i].pattern =
8773 new_rule->patterns[i].mask + mask_len;
8774 memcpy(new_rule->patterns[i].mask,
8775 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8776 new_rule->patterns[i].pattern_len = pat_len;
8777 memcpy(new_rule->patterns[i].pattern,
8778 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8779 i++;
8780 }
8781
8782 return 0;
8783}
8784
8785static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8786{
8787 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8788 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8789 struct cfg80211_coalesce new_coalesce = {};
8790 struct cfg80211_coalesce *n_coalesce;
8791 int err, rem_rule, n_rules = 0, i, j;
8792 struct nlattr *rule;
8793 struct cfg80211_coalesce_rules *tmp_rule;
8794
8795 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8796 return -EOPNOTSUPP;
8797
8798 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8799 cfg80211_rdev_free_coalesce(rdev);
8800 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8801 return 0;
8802 }
8803
8804 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8805 rem_rule)
8806 n_rules++;
8807 if (n_rules > coalesce->n_rules)
8808 return -EINVAL;
8809
8810 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8811 GFP_KERNEL);
8812 if (!new_coalesce.rules)
8813 return -ENOMEM;
8814
8815 new_coalesce.n_rules = n_rules;
8816 i = 0;
8817
8818 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8819 rem_rule) {
8820 err = nl80211_parse_coalesce_rule(rdev, rule,
8821 &new_coalesce.rules[i]);
8822 if (err)
8823 goto error;
8824
8825 i++;
8826 }
8827
8828 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8829 if (err)
8830 goto error;
8831
8832 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8833 if (!n_coalesce) {
8834 err = -ENOMEM;
8835 goto error;
8836 }
8837 cfg80211_rdev_free_coalesce(rdev);
8838 rdev->coalesce = n_coalesce;
8839
8840 return 0;
8841error:
8842 for (i = 0; i < new_coalesce.n_rules; i++) {
8843 tmp_rule = &new_coalesce.rules[i];
8844 for (j = 0; j < tmp_rule->n_patterns; j++)
8845 kfree(tmp_rule->patterns[j].mask);
8846 kfree(tmp_rule->patterns);
8847 }
8848 kfree(new_coalesce.rules);
8849
8850 return err;
8851}
8852
e5497d76
JB		 8853static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8854{
8855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8856 struct net_device *dev = info->user_ptr[1];
8857 struct wireless_dev *wdev = dev->ieee80211_ptr;
8858 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8859 struct cfg80211_gtk_rekey_data rekey_data;
8860 int err;
8861
8862 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8863 return -EINVAL;
8864
8865 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8866 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8867 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8868 nl80211_rekey_policy);
8869 if (err)
8870 return err;
8871
8872 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8873 return -ERANGE;
8874 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8875 return -ERANGE;
8876 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8877 return -ERANGE;
8878
8879 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8880 NL80211_KEK_LEN);
8881 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8882 NL80211_KCK_LEN);
8883 memcpy(rekey_data.replay_ctr,
8884 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8885 NL80211_REPLAY_CTR_LEN);
8886
8887 wdev_lock(wdev);
8888 if (!wdev->current_bss) {
8889 err = -ENOTCONN;
8890 goto out;
8891 }
8892
8893 if (!rdev->ops->set_rekey_data) {
8894 err = -EOPNOTSUPP;
8895 goto out;
8896 }
8897
e35e4d28 8898 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8899 out:
8900 wdev_unlock(wdev);
8901 return err;
8902}
8903
28946da7
JB		 8904static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8905 struct genl_info *info)
8906{
8907 struct net_device *dev = info->user_ptr[1];
8908 struct wireless_dev *wdev = dev->ieee80211_ptr;
8909
8910 if (wdev->iftype != NL80211_IFTYPE_AP &&
8911 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8912 return -EINVAL;
8913
15e47304 8914 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8915 return -EBUSY;
8916
15e47304 8917 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8918 return 0;
8919}
8920
7f6cf311
JB		 8921static int nl80211_probe_client(struct sk_buff *skb,
8922 struct genl_info *info)
8923{
8924 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8925 struct net_device *dev = info->user_ptr[1];
8926 struct wireless_dev *wdev = dev->ieee80211_ptr;
8927 struct sk_buff *msg;
8928 void *hdr;
8929 const u8 *addr;
8930 u64 cookie;
8931 int err;
8932
8933 if (wdev->iftype != NL80211_IFTYPE_AP &&
8934 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8935 return -EOPNOTSUPP;
8936
8937 if (!info->attrs[NL80211_ATTR_MAC])
8938 return -EINVAL;
8939
8940 if (!rdev->ops->probe_client)
8941 return -EOPNOTSUPP;
8942
8943 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8944 if (!msg)
8945 return -ENOMEM;
8946
15e47304 8947 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8948 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8949 if (!hdr) {
8950 err = -ENOBUFS;
7f6cf311
JB		 8951 goto free_msg;
8952 }
8953
8954 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8955
e35e4d28 8956 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8957 if (err)
8958 goto free_msg;
8959
9360ffd1
DM		 8960 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8961 goto nla_put_failure;
7f6cf311
JB		 8962
8963 genlmsg_end(msg, hdr);
8964
8965 return genlmsg_reply(msg, info);
8966
8967 nla_put_failure:
8968 err = -ENOBUFS;
8969 free_msg:
8970 nlmsg_free(msg);
8971 return err;
8972}
8973
5e760230
JB		 8974static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8975{
8976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8977 struct cfg80211_beacon_registration *reg, *nreg;
8978 int rv;
5e760230
JB		 8979
8980 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8981 return -EOPNOTSUPP;
8982
37c73b5f
BG		 8983 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8984 if (!nreg)
8985 return -ENOMEM;
8986
8987 /* First, check if already registered. */
8988 spin_lock_bh(&rdev->beacon_registrations_lock);
8989 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8990 if (reg->nlportid == info->snd_portid) {
8991 rv = -EALREADY;
8992 goto out_err;
8993 }
8994 }
8995 /* Add it to the list */
8996 nreg->nlportid = info->snd_portid;
8997 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8998
37c73b5f 8999 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9000
9001 return 0;
37c73b5f
BG		 9002out_err:
9003 spin_unlock_bh(&rdev->beacon_registrations_lock);
9004 kfree(nreg);
9005 return rv;
5e760230
JB		 9006}
9007
98104fde
JB		 9008static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9009{
9010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9011 struct wireless_dev *wdev = info->user_ptr[1];
9012 int err;
9013
9014 if (!rdev->ops->start_p2p_device)
9015 return -EOPNOTSUPP;
9016
9017 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9018 return -EOPNOTSUPP;
9019
9020 if (wdev->p2p_started)
9021 return 0;
9022
b6a55015
LC		 9023 if (rfkill_blocked(rdev->rfkill))
9024 return -ERFKILL;
98104fde 9025
eeb126e9 9026 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9027 if (err)
9028 return err;
9029
9030 wdev->p2p_started = true;
98104fde 9031 rdev->opencount++;
98104fde
JB		 9032
9033 return 0;
9034}
9035
9036static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9037{
9038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9039 struct wireless_dev *wdev = info->user_ptr[1];
9040
9041 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9042 return -EOPNOTSUPP;
9043
9044 if (!rdev->ops->stop_p2p_device)
9045 return -EOPNOTSUPP;
9046
f9f47529 9047 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9048
9049 return 0;
9050}
9051
3713b4e3
JB		 9052static int nl80211_get_protocol_features(struct sk_buff *skb,
9053 struct genl_info *info)
9054{
9055 void *hdr;
9056 struct sk_buff *msg;
9057
9058 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9059 if (!msg)
9060 return -ENOMEM;
9061
9062 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9063 NL80211_CMD_GET_PROTOCOL_FEATURES);
9064 if (!hdr)
9065 goto nla_put_failure;
9066
9067 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9068 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9069 goto nla_put_failure;
9070
9071 genlmsg_end(msg, hdr);
9072 return genlmsg_reply(msg, info);
9073
9074 nla_put_failure:
9075 kfree_skb(msg);
9076 return -ENOBUFS;
9077}
9078
355199e0
JM		 9079static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9080{
9081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9082 struct cfg80211_update_ft_ies_params ft_params;
9083 struct net_device *dev = info->user_ptr[1];
9084
9085 if (!rdev->ops->update_ft_ies)
9086 return -EOPNOTSUPP;
9087
9088 if (!info->attrs[NL80211_ATTR_MDID] ||
9089 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9090 return -EINVAL;
9091
9092 memset(&ft_params, 0, sizeof(ft_params));
9093 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9094 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9095 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9096
9097 return rdev_update_ft_ies(rdev, dev, &ft_params);
9098}
9099
5de17984
AS		 9100static int nl80211_crit_protocol_start(struct sk_buff *skb,
9101 struct genl_info *info)
9102{
9103 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9104 struct wireless_dev *wdev = info->user_ptr[1];
9105 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9106 u16 duration;
9107 int ret;
9108
9109 if (!rdev->ops->crit_proto_start)
9110 return -EOPNOTSUPP;
9111
9112 if (WARN_ON(!rdev->ops->crit_proto_stop))
9113 return -EINVAL;
9114
9115 if (rdev->crit_proto_nlportid)
9116 return -EBUSY;
9117
9118 /* determine protocol if provided */
9119 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9120 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9121
9122 if (proto >= NUM_NL80211_CRIT_PROTO)
9123 return -EINVAL;
9124
9125 /* timeout must be provided */
9126 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9127 return -EINVAL;
9128
9129 duration =
9130 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9131
9132 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9133 return -ERANGE;
9134
9135 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9136 if (!ret)
9137 rdev->crit_proto_nlportid = info->snd_portid;
9138
9139 return ret;
9140}
9141
9142static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9143 struct genl_info *info)
9144{
9145 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9146 struct wireless_dev *wdev = info->user_ptr[1];
9147
9148 if (!rdev->ops->crit_proto_stop)
9149 return -EOPNOTSUPP;
9150
9151 if (rdev->crit_proto_nlportid) {
9152 rdev->crit_proto_nlportid = 0;
9153 rdev_crit_proto_stop(rdev, wdev);
9154 }
9155 return 0;
9156}
9157
ad7e718c
JB		 9158static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9159{
9160 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9161 struct wireless_dev *wdev =
9162 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9163 int i, err;
9164 u32 vid, subcmd;
9165
9166 if (!rdev->wiphy.vendor_commands)
9167 return -EOPNOTSUPP;
9168
9169 if (IS_ERR(wdev)) {
9170 err = PTR_ERR(wdev);
9171 if (err != -EINVAL)
9172 return err;
9173 wdev = NULL;
9174 } else if (wdev->wiphy != &rdev->wiphy) {
9175 return -EINVAL;
9176 }
9177
9178 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9179 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9180 return -EINVAL;
9181
9182 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9183 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9184 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9185 const struct wiphy_vendor_command *vcmd;
9186 void *data = NULL;
9187 int len = 0;
9188
9189 vcmd = &rdev->wiphy.vendor_commands[i];
9190
9191 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9192 continue;
9193
9194 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9195 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9196 if (!wdev)
9197 return -EINVAL;
9198 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9199 !wdev->netdev)
9200 return -EINVAL;
9201
9202 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9203 if (wdev->netdev &&
9204 !netif_running(wdev->netdev))
9205 return -ENETDOWN;
9206 if (!wdev->netdev && !wdev->p2p_started)
9207 return -ENETDOWN;
9208 }
9209 } else {
9210 wdev = NULL;
9211 }
9212
9213 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9214 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9215 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9216 }
9217
9218 rdev->cur_cmd_info = info;
9219 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9220 data, len);
9221 rdev->cur_cmd_info = NULL;
9222 return err;
9223 }
9224
9225 return -EOPNOTSUPP;
9226}
9227
9228struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9229 enum nl80211_commands cmd,
9230 enum nl80211_attrs attr,
9231 int approxlen)
9232{
f26cbf40 9233 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9234
9235 if (WARN_ON(!rdev->cur_cmd_info))
9236 return NULL;
9237
9238 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9239 rdev->cur_cmd_info->snd_portid,
9240 rdev->cur_cmd_info->snd_seq,
567ffc35 9241 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9242}
9243EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9244
9245int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9246{
9247 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9248 void *hdr = ((void **)skb->cb)[1];
9249 struct nlattr *data = ((void **)skb->cb)[2];
9250
9251 if (WARN_ON(!rdev->cur_cmd_info)) {
9252 kfree_skb(skb);
9253 return -EINVAL;
9254 }
9255
9256 nla_nest_end(skb, data);
9257 genlmsg_end(skb, hdr);
9258 return genlmsg_reply(skb, rdev->cur_cmd_info);
9259}
9260EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9261
9262
fa9ffc74
KP		 9263static int nl80211_set_qos_map(struct sk_buff *skb,
9264 struct genl_info *info)
9265{
9266 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9267 struct cfg80211_qos_map *qos_map = NULL;
9268 struct net_device *dev = info->user_ptr[1];
9269 u8 *pos, len, num_des, des_len, des;
9270 int ret;
9271
9272 if (!rdev->ops->set_qos_map)
9273 return -EOPNOTSUPP;
9274
9275 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9276 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9277 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9278
9279 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9280 len > IEEE80211_QOS_MAP_LEN_MAX)
9281 return -EINVAL;
9282
9283 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9284 if (!qos_map)
9285 return -ENOMEM;
9286
9287 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9288 if (num_des) {
9289 des_len = num_des *
9290 sizeof(struct cfg80211_dscp_exception);
9291 memcpy(qos_map->dscp_exception, pos, des_len);
9292 qos_map->num_des = num_des;
9293 for (des = 0; des < num_des; des++) {
9294 if (qos_map->dscp_exception[des].up > 7) {
9295 kfree(qos_map);
9296 return -EINVAL;
9297 }
9298 }
9299 pos += des_len;
9300 }
9301 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9302 }
9303
9304 wdev_lock(dev->ieee80211_ptr);
9305 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9306 if (!ret)
9307 ret = rdev_set_qos_map(rdev, dev, qos_map);
9308 wdev_unlock(dev->ieee80211_ptr);
9309
9310 kfree(qos_map);
9311 return ret;
9312}
9313
4c476991
JB		 9314#define NL80211_FLAG_NEED_WIPHY 0x01
9315#define NL80211_FLAG_NEED_NETDEV 0x02
9316#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9317#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9318#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9319 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9320#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9321/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9322#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9323 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9324
f84f771d 9325static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9326 struct genl_info *info)
9327{
9328 struct cfg80211_registered_device *rdev;
89a54e48 9329 struct wireless_dev *wdev;
4c476991 9330 struct net_device *dev;
4c476991
JB		 9331 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9332
9333 if (rtnl)
9334 rtnl_lock();
9335
9336 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9337 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9338 if (IS_ERR(rdev)) {
9339 if (rtnl)
9340 rtnl_unlock();
9341 return PTR_ERR(rdev);
9342 }
9343 info->user_ptr[0] = rdev;
1bf614ef
JB		 9344 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9345 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9346 ASSERT_RTNL();
9347
89a54e48
JB		 9348 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9349 info->attrs);
9350 if (IS_ERR(wdev)) {
4c476991
JB		 9351 if (rtnl)
9352 rtnl_unlock();
89a54e48 9353 return PTR_ERR(wdev);
4c476991 9354 }
89a54e48 9355
89a54e48 9356 dev = wdev->netdev;
f26cbf40 9357 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9358
1bf614ef
JB		 9359 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9360 if (!dev) {
1bf614ef
JB		 9361 if (rtnl)
9362 rtnl_unlock();
9363 return -EINVAL;
9364 }
9365
9366 info->user_ptr[1] = dev;
9367 } else {
9368 info->user_ptr[1] = wdev;
41265714 9369 }
1bf614ef
JB		 9370
9371 if (dev) {
9372 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9373 !netif_running(dev)) {
1bf614ef
JB		 9374 if (rtnl)
9375 rtnl_unlock();
9376 return -ENETDOWN;
9377 }
9378
9379 dev_hold(dev);
98104fde
JB		 9380 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9381 if (!wdev->p2p_started) {
98104fde
JB		 9382 if (rtnl)
9383 rtnl_unlock();
9384 return -ENETDOWN;
9385 }
41265714 9386 }
89a54e48 9387
4c476991 9388 info->user_ptr[0] = rdev;
4c476991
JB		 9389 }
9390
9391 return 0;
9392}
9393
f84f771d 9394static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9395 struct genl_info *info)
9396{
1bf614ef
JB		 9397 if (info->user_ptr[1]) {
9398 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9399 struct wireless_dev *wdev = info->user_ptr[1];
9400
9401 if (wdev->netdev)
9402 dev_put(wdev->netdev);
9403 } else {
9404 dev_put(info->user_ptr[1]);
9405 }
9406 }
4c476991
JB		 9407 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9408 rtnl_unlock();
9409}
9410
4534de83 9411static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9412 {
9413 .cmd = NL80211_CMD_GET_WIPHY,
9414 .doit = nl80211_get_wiphy,
9415 .dumpit = nl80211_dump_wiphy,
86e8cf98 9416 .done = nl80211_dump_wiphy_done,
55682965
JB		 9417 .policy = nl80211_policy,
9418 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9419 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9420 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9421 },
9422 {
9423 .cmd = NL80211_CMD_SET_WIPHY,
9424 .doit = nl80211_set_wiphy,
9425 .policy = nl80211_policy,
9426 .flags = GENL_ADMIN_PERM,
4c476991 9427 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9428 },
9429 {
9430 .cmd = NL80211_CMD_GET_INTERFACE,
9431 .doit = nl80211_get_interface,
9432 .dumpit = nl80211_dump_interface,
9433 .policy = nl80211_policy,
9434 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9435 .internal_flags = NL80211_FLAG_NEED_WDEV |
9436 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9437 },
9438 {
9439 .cmd = NL80211_CMD_SET_INTERFACE,
9440 .doit = nl80211_set_interface,
9441 .policy = nl80211_policy,
9442 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9443 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9444 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9445 },
9446 {
9447 .cmd = NL80211_CMD_NEW_INTERFACE,
9448 .doit = nl80211_new_interface,
9449 .policy = nl80211_policy,
9450 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9451 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9452 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9453 },
9454 {
9455 .cmd = NL80211_CMD_DEL_INTERFACE,
9456 .doit = nl80211_del_interface,
9457 .policy = nl80211_policy,
41ade00f 9458 .flags = GENL_ADMIN_PERM,
84efbb84 9459 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9460 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9461 },
9462 {
9463 .cmd = NL80211_CMD_GET_KEY,
9464 .doit = nl80211_get_key,
9465 .policy = nl80211_policy,
9466 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9467 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9468 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9469 },
9470 {
9471 .cmd = NL80211_CMD_SET_KEY,
9472 .doit = nl80211_set_key,
9473 .policy = nl80211_policy,
9474 .flags = GENL_ADMIN_PERM,
41265714 9475 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9476 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9477 },
9478 {
9479 .cmd = NL80211_CMD_NEW_KEY,
9480 .doit = nl80211_new_key,
9481 .policy = nl80211_policy,
9482 .flags = GENL_ADMIN_PERM,
41265714 9483 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9484 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9485 },
9486 {
9487 .cmd = NL80211_CMD_DEL_KEY,
9488 .doit = nl80211_del_key,
9489 .policy = nl80211_policy,
55682965 9490 .flags = GENL_ADMIN_PERM,
41265714 9491 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9492 NL80211_FLAG_NEED_RTNL,
55682965 9493 },
ed1b6cc7
JB		 9494 {
9495 .cmd = NL80211_CMD_SET_BEACON,
9496 .policy = nl80211_policy,
9497 .flags = GENL_ADMIN_PERM,
8860020e 9498 .doit = nl80211_set_beacon,
2b5f8b0b 9499 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9500 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9501 },
9502 {
8860020e 9503 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9504 .policy = nl80211_policy,
9505 .flags = GENL_ADMIN_PERM,
8860020e 9506 .doit = nl80211_start_ap,
2b5f8b0b 9507 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9508 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9509 },
9510 {
8860020e 9511 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9512 .policy = nl80211_policy,
9513 .flags = GENL_ADMIN_PERM,
8860020e 9514 .doit = nl80211_stop_ap,
2b5f8b0b 9515 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9516 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9517 },
5727ef1b
JB		 9518 {
9519 .cmd = NL80211_CMD_GET_STATION,
9520 .doit = nl80211_get_station,
2ec600d6 9521 .dumpit = nl80211_dump_station,
5727ef1b 9522 .policy = nl80211_policy,
4c476991
JB		 9523 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9524 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9525 },
9526 {
9527 .cmd = NL80211_CMD_SET_STATION,
9528 .doit = nl80211_set_station,
9529 .policy = nl80211_policy,
9530 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9531 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9532 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9533 },
9534 {
9535 .cmd = NL80211_CMD_NEW_STATION,
9536 .doit = nl80211_new_station,
9537 .policy = nl80211_policy,
9538 .flags = GENL_ADMIN_PERM,
41265714 9539 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9540 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9541 },
9542 {
9543 .cmd = NL80211_CMD_DEL_STATION,
9544 .doit = nl80211_del_station,
9545 .policy = nl80211_policy,
2ec600d6 9546 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9547 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9548 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9549 },
9550 {
9551 .cmd = NL80211_CMD_GET_MPATH,
9552 .doit = nl80211_get_mpath,
9553 .dumpit = nl80211_dump_mpath,
9554 .policy = nl80211_policy,
9555 .flags = GENL_ADMIN_PERM,
41265714 9556 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9557 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9558 },
9559 {
9560 .cmd = NL80211_CMD_SET_MPATH,
9561 .doit = nl80211_set_mpath,
9562 .policy = nl80211_policy,
9563 .flags = GENL_ADMIN_PERM,
41265714 9564 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9565 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9566 },
9567 {
9568 .cmd = NL80211_CMD_NEW_MPATH,
9569 .doit = nl80211_new_mpath,
9570 .policy = nl80211_policy,
9571 .flags = GENL_ADMIN_PERM,
41265714 9572 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9573 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9574 },
9575 {
9576 .cmd = NL80211_CMD_DEL_MPATH,
9577 .doit = nl80211_del_mpath,
9578 .policy = nl80211_policy,
9f1ba906 9579 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9580 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9581 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9582 },
9583 {
9584 .cmd = NL80211_CMD_SET_BSS,
9585 .doit = nl80211_set_bss,
9586 .policy = nl80211_policy,
b2e1b302 9587 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9588 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9589 NL80211_FLAG_NEED_RTNL,
b2e1b302 9590 },
f130347c
LR		 9591 {
9592 .cmd = NL80211_CMD_GET_REG,
9593 .doit = nl80211_get_reg,
9594 .policy = nl80211_policy,
5fe231e8 9595 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9596 /* can be retrieved by unprivileged users */
9597 },
b2e1b302
LR		 9598 {
9599 .cmd = NL80211_CMD_SET_REG,
9600 .doit = nl80211_set_reg,
9601 .policy = nl80211_policy,
9602 .flags = GENL_ADMIN_PERM,
5fe231e8 9603 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9604 },
9605 {
9606 .cmd = NL80211_CMD_REQ_SET_REG,
9607 .doit = nl80211_req_set_reg,
9608 .policy = nl80211_policy,
93da9cc1 9609 .flags = GENL_ADMIN_PERM,
9610 },
9611 {
24bdd9f4
JC		 9612 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9613 .doit = nl80211_get_mesh_config,
93da9cc1 9614 .policy = nl80211_policy,
9615 /* can be retrieved by unprivileged users */
2b5f8b0b 9616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9617 NL80211_FLAG_NEED_RTNL,
93da9cc1 9618 },
9619 {
24bdd9f4
JC		 9620 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9621 .doit = nl80211_update_mesh_config,
93da9cc1 9622 .policy = nl80211_policy,
9aed3cc1 9623 .flags = GENL_ADMIN_PERM,
29cbe68c 9624 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9625 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9626 },
2a519311
JB		 9627 {
9628 .cmd = NL80211_CMD_TRIGGER_SCAN,
9629 .doit = nl80211_trigger_scan,
9630 .policy = nl80211_policy,
9631 .flags = GENL_ADMIN_PERM,
fd014284 9632 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9633 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9634 },
9635 {
9636 .cmd = NL80211_CMD_GET_SCAN,
9637 .policy = nl80211_policy,
9638 .dumpit = nl80211_dump_scan,
9639 },
807f8a8c
LC		 9640 {
9641 .cmd = NL80211_CMD_START_SCHED_SCAN,
9642 .doit = nl80211_start_sched_scan,
9643 .policy = nl80211_policy,
9644 .flags = GENL_ADMIN_PERM,
9645 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9646 NL80211_FLAG_NEED_RTNL,
9647 },
9648 {
9649 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9650 .doit = nl80211_stop_sched_scan,
9651 .policy = nl80211_policy,
9652 .flags = GENL_ADMIN_PERM,
9653 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9654 NL80211_FLAG_NEED_RTNL,
9655 },
636a5d36
JM		 9656 {
9657 .cmd = NL80211_CMD_AUTHENTICATE,
9658 .doit = nl80211_authenticate,
9659 .policy = nl80211_policy,
9660 .flags = GENL_ADMIN_PERM,
41265714 9661 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9662 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9663 },
9664 {
9665 .cmd = NL80211_CMD_ASSOCIATE,
9666 .doit = nl80211_associate,
9667 .policy = nl80211_policy,
9668 .flags = GENL_ADMIN_PERM,
41265714 9669 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9670 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9671 },
9672 {
9673 .cmd = NL80211_CMD_DEAUTHENTICATE,
9674 .doit = nl80211_deauthenticate,
9675 .policy = nl80211_policy,
9676 .flags = GENL_ADMIN_PERM,
41265714 9677 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9678 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9679 },
9680 {
9681 .cmd = NL80211_CMD_DISASSOCIATE,
9682 .doit = nl80211_disassociate,
9683 .policy = nl80211_policy,
9684 .flags = GENL_ADMIN_PERM,
41265714 9685 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9686 NL80211_FLAG_NEED_RTNL,
636a5d36 9687 },
04a773ad
JB		 9688 {
9689 .cmd = NL80211_CMD_JOIN_IBSS,
9690 .doit = nl80211_join_ibss,
9691 .policy = nl80211_policy,
9692 .flags = GENL_ADMIN_PERM,
41265714 9693 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9694 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9695 },
9696 {
9697 .cmd = NL80211_CMD_LEAVE_IBSS,
9698 .doit = nl80211_leave_ibss,
9699 .policy = nl80211_policy,
9700 .flags = GENL_ADMIN_PERM,
41265714 9701 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9702 NL80211_FLAG_NEED_RTNL,
04a773ad 9703 },
aff89a9b
JB		 9704#ifdef CONFIG_NL80211_TESTMODE
9705 {
9706 .cmd = NL80211_CMD_TESTMODE,
9707 .doit = nl80211_testmode_do,
71063f0e 9708 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9709 .policy = nl80211_policy,
9710 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9711 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9712 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9713 },
9714#endif
b23aa676
SO		 9715 {
9716 .cmd = NL80211_CMD_CONNECT,
9717 .doit = nl80211_connect,
9718 .policy = nl80211_policy,
9719 .flags = GENL_ADMIN_PERM,
41265714 9720 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9721 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9722 },
9723 {
9724 .cmd = NL80211_CMD_DISCONNECT,
9725 .doit = nl80211_disconnect,
9726 .policy = nl80211_policy,
9727 .flags = GENL_ADMIN_PERM,
41265714 9728 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9729 NL80211_FLAG_NEED_RTNL,
b23aa676 9730 },
463d0183
JB		 9731 {
9732 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9733 .doit = nl80211_wiphy_netns,
9734 .policy = nl80211_policy,
9735 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9736 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9737 NL80211_FLAG_NEED_RTNL,
463d0183 9738 },
61fa713c
HS		 9739 {
9740 .cmd = NL80211_CMD_GET_SURVEY,
9741 .policy = nl80211_policy,
9742 .dumpit = nl80211_dump_survey,
9743 },
67fbb16b
SO		 9744 {
9745 .cmd = NL80211_CMD_SET_PMKSA,
9746 .doit = nl80211_setdel_pmksa,
9747 .policy = nl80211_policy,
9748 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9749 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9750 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9751 },
9752 {
9753 .cmd = NL80211_CMD_DEL_PMKSA,
9754 .doit = nl80211_setdel_pmksa,
9755 .policy = nl80211_policy,
9756 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9757 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9758 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9759 },
9760 {
9761 .cmd = NL80211_CMD_FLUSH_PMKSA,
9762 .doit = nl80211_flush_pmksa,
9763 .policy = nl80211_policy,
9764 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9765 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9766 NL80211_FLAG_NEED_RTNL,
67fbb16b 9767 },
9588bbd5
JM		 9768 {
9769 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9770 .doit = nl80211_remain_on_channel,
9771 .policy = nl80211_policy,
9772 .flags = GENL_ADMIN_PERM,
71bbc994 9773 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9774 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9775 },
9776 {
9777 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9778 .doit = nl80211_cancel_remain_on_channel,
9779 .policy = nl80211_policy,
9780 .flags = GENL_ADMIN_PERM,
71bbc994 9781 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9782 NL80211_FLAG_NEED_RTNL,
9588bbd5 9783 },
13ae75b1
JM		 9784 {
9785 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9786 .doit = nl80211_set_tx_bitrate_mask,
9787 .policy = nl80211_policy,
9788 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9789 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9790 NL80211_FLAG_NEED_RTNL,
13ae75b1 9791 },
026331c4 9792 {
2e161f78
JB		 9793 .cmd = NL80211_CMD_REGISTER_FRAME,
9794 .doit = nl80211_register_mgmt,
026331c4
JM		 9795 .policy = nl80211_policy,
9796 .flags = GENL_ADMIN_PERM,
71bbc994 9797 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9798 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9799 },
9800 {
2e161f78
JB		 9801 .cmd = NL80211_CMD_FRAME,
9802 .doit = nl80211_tx_mgmt,
026331c4 9803 .policy = nl80211_policy,
f7ca38df 9804 .flags = GENL_ADMIN_PERM,
71bbc994 9805 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9806 NL80211_FLAG_NEED_RTNL,
9807 },
9808 {
9809 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9810 .doit = nl80211_tx_mgmt_cancel_wait,
9811 .policy = nl80211_policy,
026331c4 9812 .flags = GENL_ADMIN_PERM,
71bbc994 9813 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9814 NL80211_FLAG_NEED_RTNL,
026331c4 9815 },
ffb9eb3d
KV		 9816 {
9817 .cmd = NL80211_CMD_SET_POWER_SAVE,
9818 .doit = nl80211_set_power_save,
9819 .policy = nl80211_policy,
9820 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9821 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9822 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9823 },
9824 {
9825 .cmd = NL80211_CMD_GET_POWER_SAVE,
9826 .doit = nl80211_get_power_save,
9827 .policy = nl80211_policy,
9828 /* can be retrieved by unprivileged users */
4c476991
JB		 9829 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9830 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9831 },
d6dc1a38
JO		 9832 {
9833 .cmd = NL80211_CMD_SET_CQM,
9834 .doit = nl80211_set_cqm,
9835 .policy = nl80211_policy,
9836 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9837 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9838 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9839 },
f444de05
JB		 9840 {
9841 .cmd = NL80211_CMD_SET_CHANNEL,
9842 .doit = nl80211_set_channel,
9843 .policy = nl80211_policy,
9844 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9845 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9846 NL80211_FLAG_NEED_RTNL,
f444de05 9847 },
e8347eba
BJ		 9848 {
9849 .cmd = NL80211_CMD_SET_WDS_PEER,
9850 .doit = nl80211_set_wds_peer,
9851 .policy = nl80211_policy,
9852 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9853 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9854 NL80211_FLAG_NEED_RTNL,
e8347eba 9855 },
29cbe68c
JB		 9856 {
9857 .cmd = NL80211_CMD_JOIN_MESH,
9858 .doit = nl80211_join_mesh,
9859 .policy = nl80211_policy,
9860 .flags = GENL_ADMIN_PERM,
9861 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9862 NL80211_FLAG_NEED_RTNL,
9863 },
9864 {
9865 .cmd = NL80211_CMD_LEAVE_MESH,
9866 .doit = nl80211_leave_mesh,
9867 .policy = nl80211_policy,
9868 .flags = GENL_ADMIN_PERM,
9869 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9870 NL80211_FLAG_NEED_RTNL,
9871 },
dfb89c56 9872#ifdef CONFIG_PM
ff1b6e69
JB		 9873 {
9874 .cmd = NL80211_CMD_GET_WOWLAN,
9875 .doit = nl80211_get_wowlan,
9876 .policy = nl80211_policy,
9877 /* can be retrieved by unprivileged users */
9878 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9879 NL80211_FLAG_NEED_RTNL,
9880 },
9881 {
9882 .cmd = NL80211_CMD_SET_WOWLAN,
9883 .doit = nl80211_set_wowlan,
9884 .policy = nl80211_policy,
9885 .flags = GENL_ADMIN_PERM,
9886 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9887 NL80211_FLAG_NEED_RTNL,
9888 },
dfb89c56 9889#endif
e5497d76
JB		 9890 {
9891 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9892 .doit = nl80211_set_rekey_data,
9893 .policy = nl80211_policy,
9894 .flags = GENL_ADMIN_PERM,
9895 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9896 NL80211_FLAG_NEED_RTNL,
9897 },
109086ce
AN		 9898 {
9899 .cmd = NL80211_CMD_TDLS_MGMT,
9900 .doit = nl80211_tdls_mgmt,
9901 .policy = nl80211_policy,
9902 .flags = GENL_ADMIN_PERM,
9903 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9904 NL80211_FLAG_NEED_RTNL,
9905 },
9906 {
9907 .cmd = NL80211_CMD_TDLS_OPER,
9908 .doit = nl80211_tdls_oper,
9909 .policy = nl80211_policy,
9910 .flags = GENL_ADMIN_PERM,
9911 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9912 NL80211_FLAG_NEED_RTNL,
9913 },
28946da7
JB		 9914 {
9915 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9916 .doit = nl80211_register_unexpected_frame,
9917 .policy = nl80211_policy,
9918 .flags = GENL_ADMIN_PERM,
9919 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9920 NL80211_FLAG_NEED_RTNL,
9921 },
7f6cf311
JB		 9922 {
9923 .cmd = NL80211_CMD_PROBE_CLIENT,
9924 .doit = nl80211_probe_client,
9925 .policy = nl80211_policy,
9926 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9927 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9928 NL80211_FLAG_NEED_RTNL,
9929 },
5e760230
JB		 9930 {
9931 .cmd = NL80211_CMD_REGISTER_BEACONS,
9932 .doit = nl80211_register_beacons,
9933 .policy = nl80211_policy,
9934 .flags = GENL_ADMIN_PERM,
9935 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9936 NL80211_FLAG_NEED_RTNL,
9937 },
1d9d9213
SW		 9938 {
9939 .cmd = NL80211_CMD_SET_NOACK_MAP,
9940 .doit = nl80211_set_noack_map,
9941 .policy = nl80211_policy,
9942 .flags = GENL_ADMIN_PERM,
9943 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9944 NL80211_FLAG_NEED_RTNL,
9945 },
98104fde
JB		 9946 {
9947 .cmd = NL80211_CMD_START_P2P_DEVICE,
9948 .doit = nl80211_start_p2p_device,
9949 .policy = nl80211_policy,
9950 .flags = GENL_ADMIN_PERM,
9951 .internal_flags = NL80211_FLAG_NEED_WDEV |
9952 NL80211_FLAG_NEED_RTNL,
9953 },
9954 {
9955 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9956 .doit = nl80211_stop_p2p_device,
9957 .policy = nl80211_policy,
9958 .flags = GENL_ADMIN_PERM,
9959 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9960 NL80211_FLAG_NEED_RTNL,
9961 },
f4e583c8
AQ		 9962 {
9963 .cmd = NL80211_CMD_SET_MCAST_RATE,
9964 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 9965 .policy = nl80211_policy,
9966 .flags = GENL_ADMIN_PERM,
9967 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9968 NL80211_FLAG_NEED_RTNL,
9969 },
9970 {
9971 .cmd = NL80211_CMD_SET_MAC_ACL,
9972 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 9973 .policy = nl80211_policy,
9974 .flags = GENL_ADMIN_PERM,
9975 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9976 NL80211_FLAG_NEED_RTNL,
9977 },
04f39047
SW		 9978 {
9979 .cmd = NL80211_CMD_RADAR_DETECT,
9980 .doit = nl80211_start_radar_detection,
9981 .policy = nl80211_policy,
9982 .flags = GENL_ADMIN_PERM,
9983 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9984 NL80211_FLAG_NEED_RTNL,
9985 },
3713b4e3
JB		 9986 {
9987 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9988 .doit = nl80211_get_protocol_features,
9989 .policy = nl80211_policy,
9990 },
355199e0
JM		 9991 {
9992 .cmd = NL80211_CMD_UPDATE_FT_IES,
9993 .doit = nl80211_update_ft_ies,
9994 .policy = nl80211_policy,
9995 .flags = GENL_ADMIN_PERM,
9996 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9997 NL80211_FLAG_NEED_RTNL,
9998 },
5de17984
AS		 9999 {
10000 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10001 .doit = nl80211_crit_protocol_start,
10002 .policy = nl80211_policy,
10003 .flags = GENL_ADMIN_PERM,
10004 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10005 NL80211_FLAG_NEED_RTNL,
10006 },
10007 {
10008 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10009 .doit = nl80211_crit_protocol_stop,
10010 .policy = nl80211_policy,
10011 .flags = GENL_ADMIN_PERM,
10012 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10013 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10014 },
10015 {
10016 .cmd = NL80211_CMD_GET_COALESCE,
10017 .doit = nl80211_get_coalesce,
10018 .policy = nl80211_policy,
10019 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10020 NL80211_FLAG_NEED_RTNL,
10021 },
10022 {
10023 .cmd = NL80211_CMD_SET_COALESCE,
10024 .doit = nl80211_set_coalesce,
10025 .policy = nl80211_policy,
10026 .flags = GENL_ADMIN_PERM,
10027 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10028 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10029 },
10030 {
10031 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10032 .doit = nl80211_channel_switch,
10033 .policy = nl80211_policy,
10034 .flags = GENL_ADMIN_PERM,
10035 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10036 NL80211_FLAG_NEED_RTNL,
10037 },
ad7e718c
JB		 10038 {
10039 .cmd = NL80211_CMD_VENDOR,
10040 .doit = nl80211_vendor_cmd,
10041 .policy = nl80211_policy,
10042 .flags = GENL_ADMIN_PERM,
10043 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10044 NL80211_FLAG_NEED_RTNL,
10045 },
fa9ffc74
KP		 10046 {
10047 .cmd = NL80211_CMD_SET_QOS_MAP,
10048 .doit = nl80211_set_qos_map,
10049 .policy = nl80211_policy,
10050 .flags = GENL_ADMIN_PERM,
10051 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10052 NL80211_FLAG_NEED_RTNL,
10053 },
55682965 10054};
9588bbd5 10055
55682965
JB		 10056/* notification functions */
10057
10058void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
10059{
10060 struct sk_buff *msg;
86e8cf98 10061 struct nl80211_dump_wiphy_state state = {};
55682965 10062
fd2120ca 10063 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10064 if (!msg)
10065 return;
10066
86e8cf98 10067 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10068 nlmsg_free(msg);
10069 return;
10070 }
10071
68eb5503 10072 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10073 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10074}
10075
362a415d
JB		 10076static int nl80211_add_scan_req(struct sk_buff *msg,
10077 struct cfg80211_registered_device *rdev)
10078{
10079 struct cfg80211_scan_request *req = rdev->scan_req;
10080 struct nlattr *nest;
10081 int i;
10082
10083 if (WARN_ON(!req))
10084 return 0;
10085
10086 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10087 if (!nest)
10088 goto nla_put_failure;
9360ffd1
DM		 10089 for (i = 0; i < req->n_ssids; i++) {
10090 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10091 goto nla_put_failure;
10092 }
362a415d
JB		 10093 nla_nest_end(msg, nest);
10094
10095 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10096 if (!nest)
10097 goto nla_put_failure;
9360ffd1
DM		 10098 for (i = 0; i < req->n_channels; i++) {
10099 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10100 goto nla_put_failure;
10101 }
362a415d
JB		 10102 nla_nest_end(msg, nest);
10103
9360ffd1
DM		 10104 if (req->ie &&
10105 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10106 goto nla_put_failure;
362a415d 10107
ae917c9f
JB		 10108 if (req->flags &&
10109 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10110 goto nla_put_failure;
ed473771 10111
362a415d
JB		 10112 return 0;
10113 nla_put_failure:
10114 return -ENOBUFS;
10115}
10116
a538e2d5
JB		 10117static int nl80211_send_scan_msg(struct sk_buff *msg,
10118 struct cfg80211_registered_device *rdev,
fd014284 10119 struct wireless_dev *wdev,
15e47304 10120 u32 portid, u32 seq, int flags,
a538e2d5 10121 u32 cmd)
2a519311
JB		 10122{
10123 void *hdr;
10124
15e47304 10125 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10126 if (!hdr)
10127 return -1;
10128
9360ffd1 10129 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10130 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10131 wdev->netdev->ifindex)) ||
10132 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10133 goto nla_put_failure;
2a519311 10134
362a415d
JB		 10135 /* ignore errors and send incomplete event anyway */
10136 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10137
10138 return genlmsg_end(msg, hdr);
10139
10140 nla_put_failure:
10141 genlmsg_cancel(msg, hdr);
10142 return -EMSGSIZE;
10143}
10144
807f8a8c
LC		 10145static int
10146nl80211_send_sched_scan_msg(struct sk_buff *msg,
10147 struct cfg80211_registered_device *rdev,
10148 struct net_device *netdev,
15e47304 10149 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10150{
10151 void *hdr;
10152
15e47304 10153 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10154 if (!hdr)
10155 return -1;
10156
9360ffd1
DM		 10157 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10158 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10159 goto nla_put_failure;
807f8a8c
LC		 10160
10161 return genlmsg_end(msg, hdr);
10162
10163 nla_put_failure:
10164 genlmsg_cancel(msg, hdr);
10165 return -EMSGSIZE;
10166}
10167
a538e2d5 10168void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10169 struct wireless_dev *wdev)
a538e2d5
JB		 10170{
10171 struct sk_buff *msg;
10172
58050fce 10173 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10174 if (!msg)
10175 return;
10176
fd014284 10177 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10178 NL80211_CMD_TRIGGER_SCAN) < 0) {
10179 nlmsg_free(msg);
10180 return;
10181 }
10182
68eb5503 10183 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10184 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10185}
10186
f9d15d16
JB		 10187struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10188 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10189{
10190 struct sk_buff *msg;
10191
fd2120ca 10192 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10193 if (!msg)
f9d15d16 10194 return NULL;
2a519311 10195
fd014284 10196 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10197 aborted ? NL80211_CMD_SCAN_ABORTED :
10198 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10199 nlmsg_free(msg);
f9d15d16 10200 return NULL;
2a519311
JB		 10201 }
10202
f9d15d16 10203 return msg;
2a519311
JB		 10204}
10205
f9d15d16
JB		 10206void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10207 struct sk_buff *msg)
2a519311 10208{
2a519311
JB		 10209 if (!msg)
10210 return;
10211
68eb5503 10212 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10213 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10214}
10215
807f8a8c
LC		 10216void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10217 struct net_device *netdev)
10218{
10219 struct sk_buff *msg;
10220
10221 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10222 if (!msg)
10223 return;
10224
10225 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10226 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10227 nlmsg_free(msg);
10228 return;
10229 }
10230
68eb5503 10231 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10232 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10233}
10234
10235void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10236 struct net_device *netdev, u32 cmd)
10237{
10238 struct sk_buff *msg;
10239
58050fce 10240 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10241 if (!msg)
10242 return;
10243
10244 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10245 nlmsg_free(msg);
10246 return;
10247 }
10248
68eb5503 10249 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10250 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10251}
10252
73d54c9e
LR		 10253/*
10254 * This can happen on global regulatory changes or device specific settings
10255 * based on custom world regulatory domains.
10256 */
10257void nl80211_send_reg_change_event(struct regulatory_request *request)
10258{
10259 struct sk_buff *msg;
10260 void *hdr;
10261
fd2120ca 10262 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10263 if (!msg)
10264 return;
10265
10266 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10267 if (!hdr) {
10268 nlmsg_free(msg);
10269 return;
10270 }
10271
10272 /* Userspace can always count this one always being set */
9360ffd1
DM		 10273 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10274 goto nla_put_failure;
10275
10276 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10277 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10278 NL80211_REGDOM_TYPE_WORLD))
10279 goto nla_put_failure;
10280 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10281 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10282 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10283 goto nla_put_failure;
10284 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10285 request->intersect) {
10286 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10287 NL80211_REGDOM_TYPE_INTERSECTION))
10288 goto nla_put_failure;
10289 } else {
10290 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10291 NL80211_REGDOM_TYPE_COUNTRY) ||
10292 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10293 request->alpha2))
10294 goto nla_put_failure;
10295 }
10296
f4173766 10297 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10298 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10299 goto nla_put_failure;
73d54c9e 10300
3b7b72ee 10301 genlmsg_end(msg, hdr);
73d54c9e 10302
bc43b28c 10303 rcu_read_lock();
68eb5503 10304 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10305 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10306 rcu_read_unlock();
73d54c9e
LR		 10307
10308 return;
10309
10310nla_put_failure:
10311 genlmsg_cancel(msg, hdr);
10312 nlmsg_free(msg);
10313}
10314
6039f6d2
JM		 10315static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10316 struct net_device *netdev,
10317 const u8 *buf, size_t len,
e6d6e342 10318 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10319{
10320 struct sk_buff *msg;
10321 void *hdr;
10322
e6d6e342 10323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10324 if (!msg)
10325 return;
10326
10327 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10328 if (!hdr) {
10329 nlmsg_free(msg);
10330 return;
10331 }
10332
9360ffd1
DM		 10333 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10334 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10335 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10336 goto nla_put_failure;
6039f6d2 10337
3b7b72ee 10338 genlmsg_end(msg, hdr);
6039f6d2 10339
68eb5503 10340 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10341 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10342 return;
10343
10344 nla_put_failure:
10345 genlmsg_cancel(msg, hdr);
10346 nlmsg_free(msg);
10347}
10348
10349void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10350 struct net_device *netdev, const u8 *buf,
10351 size_t len, gfp_t gfp)
6039f6d2
JM		 10352{
10353 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10354 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10355}
10356
10357void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10358 struct net_device *netdev, const u8 *buf,
e6d6e342 10359 size_t len, gfp_t gfp)
6039f6d2 10360{
e6d6e342
JB		 10361 nl80211_send_mlme_event(rdev, netdev, buf, len,
10362 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10363}
10364
53b46b84 10365void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10366 struct net_device *netdev, const u8 *buf,
10367 size_t len, gfp_t gfp)
6039f6d2
JM		 10368{
10369 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10370 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10371}
10372
53b46b84
JM		 10373void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10374 struct net_device *netdev, const u8 *buf,
e6d6e342 10375 size_t len, gfp_t gfp)
6039f6d2
JM		 10376{
10377 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10378 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10379}
10380
6ff57cf8
JB		 10381void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10382 size_t len)
cf4e594e 10383{
947add36
JB		 10384 struct wireless_dev *wdev = dev->ieee80211_ptr;
10385 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10386 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10387 const struct ieee80211_mgmt *mgmt = (void *)buf;
10388 u32 cmd;
947add36 10389
6ff57cf8
JB		 10390 if (WARN_ON(len < 2))
10391 return;
cf4e594e 10392
6ff57cf8
JB		 10393 if (ieee80211_is_deauth(mgmt->frame_control))
10394 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10395 else
10396 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10397
6ff57cf8
JB		 10398 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10399 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10400}
6ff57cf8 10401EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10402
1b06bb40
LR		 10403static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10404 struct net_device *netdev, int cmd,
e6d6e342 10405 const u8 *addr, gfp_t gfp)
1965c853
JM		 10406{
10407 struct sk_buff *msg;
10408 void *hdr;
10409
e6d6e342 10410 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10411 if (!msg)
10412 return;
10413
10414 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
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 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10423 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10424 goto nla_put_failure;
1965c853 10425
3b7b72ee 10426 genlmsg_end(msg, hdr);
1965c853 10427
68eb5503 10428 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10429 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10430 return;
10431
10432 nla_put_failure:
10433 genlmsg_cancel(msg, hdr);
10434 nlmsg_free(msg);
10435}
10436
10437void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10438 struct net_device *netdev, const u8 *addr,
10439 gfp_t gfp)
1965c853
JM		 10440{
10441 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10442 addr, gfp);
1965c853
JM		 10443}
10444
10445void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10446 struct net_device *netdev, const u8 *addr,
10447 gfp_t gfp)
1965c853 10448{
e6d6e342
JB		 10449 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10450 addr, gfp);
1965c853
JM		 10451}
10452
b23aa676
SO		 10453void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10454 struct net_device *netdev, const u8 *bssid,
10455 const u8 *req_ie, size_t req_ie_len,
10456 const u8 *resp_ie, size_t resp_ie_len,
10457 u16 status, gfp_t gfp)
10458{
10459 struct sk_buff *msg;
10460 void *hdr;
10461
58050fce 10462 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10463 if (!msg)
10464 return;
10465
10466 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10467 if (!hdr) {
10468 nlmsg_free(msg);
10469 return;
10470 }
10471
9360ffd1
DM		 10472 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10473 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10474 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10475 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10476 (req_ie &&
10477 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10478 (resp_ie &&
10479 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10480 goto nla_put_failure;
b23aa676 10481
3b7b72ee 10482 genlmsg_end(msg, hdr);
b23aa676 10483
68eb5503 10484 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10485 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10486 return;
10487
10488 nla_put_failure:
10489 genlmsg_cancel(msg, hdr);
10490 nlmsg_free(msg);
10491
10492}
10493
10494void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10495 struct net_device *netdev, const u8 *bssid,
10496 const u8 *req_ie, size_t req_ie_len,
10497 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10498{
10499 struct sk_buff *msg;
10500 void *hdr;
10501
58050fce 10502 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10503 if (!msg)
10504 return;
10505
10506 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10507 if (!hdr) {
10508 nlmsg_free(msg);
10509 return;
10510 }
10511
9360ffd1
DM		 10512 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10513 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10514 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10515 (req_ie &&
10516 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10517 (resp_ie &&
10518 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10519 goto nla_put_failure;
b23aa676 10520
3b7b72ee 10521 genlmsg_end(msg, hdr);
b23aa676 10522
68eb5503 10523 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10524 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10525 return;
10526
10527 nla_put_failure:
10528 genlmsg_cancel(msg, hdr);
10529 nlmsg_free(msg);
10530
10531}
10532
10533void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10534 struct net_device *netdev, u16 reason,
667503dd 10535 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10536{
10537 struct sk_buff *msg;
10538 void *hdr;
10539
58050fce 10540 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10541 if (!msg)
10542 return;
10543
10544 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10545 if (!hdr) {
10546 nlmsg_free(msg);
10547 return;
10548 }
10549
9360ffd1
DM		 10550 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10551 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10552 (from_ap && reason &&
10553 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10554 (from_ap &&
10555 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10556 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10557 goto nla_put_failure;
b23aa676 10558
3b7b72ee 10559 genlmsg_end(msg, hdr);
b23aa676 10560
68eb5503 10561 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10562 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10563 return;
10564
10565 nla_put_failure:
10566 genlmsg_cancel(msg, hdr);
10567 nlmsg_free(msg);
10568
10569}
10570
04a773ad
JB		 10571void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10572 struct net_device *netdev, const u8 *bssid,
10573 gfp_t gfp)
10574{
10575 struct sk_buff *msg;
10576 void *hdr;
10577
fd2120ca 10578 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10579 if (!msg)
10580 return;
10581
10582 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10583 if (!hdr) {
10584 nlmsg_free(msg);
10585 return;
10586 }
10587
9360ffd1
DM		 10588 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10589 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10590 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10591 goto nla_put_failure;
04a773ad 10592
3b7b72ee 10593 genlmsg_end(msg, hdr);
04a773ad 10594
68eb5503 10595 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10596 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10597 return;
10598
10599 nla_put_failure:
10600 genlmsg_cancel(msg, hdr);
10601 nlmsg_free(msg);
10602}
10603
947add36
JB		 10604void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10605 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10606{
947add36 10607 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10608 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 10609 struct sk_buff *msg;
10610 void *hdr;
10611
947add36
JB		 10612 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10613 return;
10614
10615 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10616
c93b5e71
JC		 10617 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10618 if (!msg)
10619 return;
10620
10621 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10622 if (!hdr) {
10623 nlmsg_free(msg);
10624 return;
10625 }
10626
9360ffd1 10627 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10628 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10629 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10630 (ie_len && ie &&
10631 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10632 goto nla_put_failure;
c93b5e71 10633
3b7b72ee 10634 genlmsg_end(msg, hdr);
c93b5e71 10635
68eb5503 10636 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10637 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10638 return;
10639
10640 nla_put_failure:
10641 genlmsg_cancel(msg, hdr);
10642 nlmsg_free(msg);
10643}
947add36 10644EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10645
a3b8b056
JM		 10646void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10647 struct net_device *netdev, const u8 *addr,
10648 enum nl80211_key_type key_type, int key_id,
e6d6e342 10649 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10650{
10651 struct sk_buff *msg;
10652 void *hdr;
10653
e6d6e342 10654 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10655 if (!msg)
10656 return;
10657
10658 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10659 if (!hdr) {
10660 nlmsg_free(msg);
10661 return;
10662 }
10663
9360ffd1
DM		 10664 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10665 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10666 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10667 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10668 (key_id != -1 &&
10669 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10670 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10671 goto nla_put_failure;
a3b8b056 10672
3b7b72ee 10673 genlmsg_end(msg, hdr);
a3b8b056 10674
68eb5503 10675 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10676 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10677 return;
10678
10679 nla_put_failure:
10680 genlmsg_cancel(msg, hdr);
10681 nlmsg_free(msg);
10682}
10683
6bad8766
LR		 10684void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10685 struct ieee80211_channel *channel_before,
10686 struct ieee80211_channel *channel_after)
10687{
10688 struct sk_buff *msg;
10689 void *hdr;
10690 struct nlattr *nl_freq;
10691
fd2120ca 10692 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10693 if (!msg)
10694 return;
10695
10696 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10697 if (!hdr) {
10698 nlmsg_free(msg);
10699 return;
10700 }
10701
10702 /*
10703 * Since we are applying the beacon hint to a wiphy we know its
10704 * wiphy_idx is valid
10705 */
9360ffd1
DM		 10706 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10707 goto nla_put_failure;
6bad8766
LR		 10708
10709 /* Before */
10710 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10711 if (!nl_freq)
10712 goto nla_put_failure;
cdc89b97 10713 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10714 goto nla_put_failure;
10715 nla_nest_end(msg, nl_freq);
10716
10717 /* After */
10718 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10719 if (!nl_freq)
10720 goto nla_put_failure;
cdc89b97 10721 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10722 goto nla_put_failure;
10723 nla_nest_end(msg, nl_freq);
10724
3b7b72ee 10725 genlmsg_end(msg, hdr);
6bad8766 10726
463d0183 10727 rcu_read_lock();
68eb5503 10728 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10729 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10730 rcu_read_unlock();
6bad8766
LR		 10731
10732 return;
10733
10734nla_put_failure:
10735 genlmsg_cancel(msg, hdr);
10736 nlmsg_free(msg);
10737}
10738
9588bbd5
JM		 10739static void nl80211_send_remain_on_chan_event(
10740 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10741 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10742 struct ieee80211_channel *chan,
9588bbd5
JM		 10743 unsigned int duration, gfp_t gfp)
10744{
10745 struct sk_buff *msg;
10746 void *hdr;
10747
10748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10749 if (!msg)
10750 return;
10751
10752 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10753 if (!hdr) {
10754 nlmsg_free(msg);
10755 return;
10756 }
10757
9360ffd1 10758 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10759 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10760 wdev->netdev->ifindex)) ||
00f53350 10761 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10762 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10763 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10764 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10765 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10766 goto nla_put_failure;
9588bbd5 10767
9360ffd1
DM		 10768 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10769 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10770 goto nla_put_failure;
9588bbd5 10771
3b7b72ee 10772 genlmsg_end(msg, hdr);
9588bbd5 10773
68eb5503 10774 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10775 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10776 return;
10777
10778 nla_put_failure:
10779 genlmsg_cancel(msg, hdr);
10780 nlmsg_free(msg);
10781}
10782
947add36
JB		 10783void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10784 struct ieee80211_channel *chan,
10785 unsigned int duration, gfp_t gfp)
9588bbd5 10786{
947add36 10787 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10788 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10789
10790 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10791 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10792 rdev, wdev, cookie, chan,
42d97a59 10793 duration, gfp);
9588bbd5 10794}
947add36 10795EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10796
947add36
JB		 10797void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10798 struct ieee80211_channel *chan,
10799 gfp_t gfp)
9588bbd5 10800{
947add36 10801 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10802 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10803
10804 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10805 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10806 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10807}
947add36 10808EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10809
947add36
JB		 10810void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10811 struct station_info *sinfo, gfp_t gfp)
98b62183 10812{
947add36 10813 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10814 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 10815 struct sk_buff *msg;
10816
947add36
JB		 10817 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10818
58050fce 10819 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10820 if (!msg)
10821 return;
10822
66266b3a
JL		 10823 if (nl80211_send_station(msg, 0, 0, 0,
10824 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10825 nlmsg_free(msg);
10826 return;
10827 }
10828
68eb5503 10829 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10830 NL80211_MCGRP_MLME, gfp);
98b62183 10831}
947add36 10832EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10833
947add36 10834void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10835{
947add36 10836 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10837 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 10838 struct sk_buff *msg;
10839 void *hdr;
10840
947add36
JB		 10841 trace_cfg80211_del_sta(dev, mac_addr);
10842
58050fce 10843 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10844 if (!msg)
10845 return;
10846
10847 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10848 if (!hdr) {
10849 nlmsg_free(msg);
10850 return;
10851 }
10852
9360ffd1
DM		 10853 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10854 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10855 goto nla_put_failure;
ec15e68b 10856
3b7b72ee 10857 genlmsg_end(msg, hdr);
ec15e68b 10858
68eb5503 10859 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10860 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10861 return;
10862
10863 nla_put_failure:
10864 genlmsg_cancel(msg, hdr);
10865 nlmsg_free(msg);
10866}
947add36 10867EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10868
947add36
JB		 10869void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10870 enum nl80211_connect_failed_reason reason,
10871 gfp_t gfp)
ed44a951 10872{
947add36 10873 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10874 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 10875 struct sk_buff *msg;
10876 void *hdr;
10877
10878 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10879 if (!msg)
10880 return;
10881
10882 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10883 if (!hdr) {
10884 nlmsg_free(msg);
10885 return;
10886 }
10887
10888 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10889 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10890 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10891 goto nla_put_failure;
10892
10893 genlmsg_end(msg, hdr);
10894
68eb5503 10895 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10896 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10897 return;
10898
10899 nla_put_failure:
10900 genlmsg_cancel(msg, hdr);
10901 nlmsg_free(msg);
10902}
947add36 10903EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10904
b92ab5d8
JB		 10905static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10906 const u8 *addr, gfp_t gfp)
28946da7
JB		 10907{
10908 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10909 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 10910 struct sk_buff *msg;
10911 void *hdr;
15e47304 10912 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10913
15e47304 10914 if (!nlportid)
28946da7
JB		 10915 return false;
10916
10917 msg = nlmsg_new(100, gfp);
10918 if (!msg)
10919 return true;
10920
b92ab5d8 10921 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10922 if (!hdr) {
10923 nlmsg_free(msg);
10924 return true;
10925 }
10926
9360ffd1
DM		 10927 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10928 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10929 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10930 goto nla_put_failure;
28946da7 10931
9c90a9f6 10932 genlmsg_end(msg, hdr);
15e47304 10933 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10934 return true;
10935
10936 nla_put_failure:
10937 genlmsg_cancel(msg, hdr);
10938 nlmsg_free(msg);
10939 return true;
10940}
10941
947add36
JB		 10942bool cfg80211_rx_spurious_frame(struct net_device *dev,
10943 const u8 *addr, gfp_t gfp)
b92ab5d8 10944{
947add36
JB		 10945 struct wireless_dev *wdev = dev->ieee80211_ptr;
10946 bool ret;
10947
10948 trace_cfg80211_rx_spurious_frame(dev, addr);
10949
10950 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10951 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10952 trace_cfg80211_return_bool(false);
10953 return false;
10954 }
10955 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10956 addr, gfp);
10957 trace_cfg80211_return_bool(ret);
10958 return ret;
b92ab5d8 10959}
947add36 10960EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10961
947add36
JB		 10962bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10963 const u8 *addr, gfp_t gfp)
b92ab5d8 10964{
947add36
JB		 10965 struct wireless_dev *wdev = dev->ieee80211_ptr;
10966 bool ret;
10967
10968 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10969
10970 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10971 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10972 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10973 trace_cfg80211_return_bool(false);
10974 return false;
10975 }
10976 ret = __nl80211_unexpected_frame(dev,
10977 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10978 addr, gfp);
10979 trace_cfg80211_return_bool(ret);
10980 return ret;
b92ab5d8 10981}
947add36 10982EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 10983
2e161f78 10984int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 10985 struct wireless_dev *wdev, u32 nlportid,
804483e9 10986 int freq, int sig_dbm,
19504cf5 10987 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 10988{
71bbc994 10989 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10990 struct sk_buff *msg;
10991 void *hdr;
026331c4
JM		 10992
10993 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10994 if (!msg)
10995 return -ENOMEM;
10996
2e161f78 10997 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 10998 if (!hdr) {
10999 nlmsg_free(msg);
11000 return -ENOMEM;
11001 }
11002
9360ffd1 11003 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11004 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11005 netdev->ifindex)) ||
a838490b 11006 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11007 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11008 (sig_dbm &&
11009 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11010 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11011 (flags &&
11012 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11013 goto nla_put_failure;
026331c4 11014
3b7b72ee 11015 genlmsg_end(msg, hdr);
026331c4 11016
15e47304 11017 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11018
11019 nla_put_failure:
11020 genlmsg_cancel(msg, hdr);
11021 nlmsg_free(msg);
11022 return -ENOBUFS;
11023}
11024
947add36
JB		 11025void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11026 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11027{
947add36 11028 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11029 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11030 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11031 struct sk_buff *msg;
11032 void *hdr;
11033
947add36
JB		 11034 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11035
026331c4
JM		 11036 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11037 if (!msg)
11038 return;
11039
2e161f78 11040 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11041 if (!hdr) {
11042 nlmsg_free(msg);
11043 return;
11044 }
11045
9360ffd1 11046 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11047 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11048 netdev->ifindex)) ||
a838490b 11049 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11050 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11051 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11052 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11053 goto nla_put_failure;
026331c4 11054
3b7b72ee 11055 genlmsg_end(msg, hdr);
026331c4 11056
68eb5503 11057 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11058 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11059 return;
11060
11061 nla_put_failure:
11062 genlmsg_cancel(msg, hdr);
11063 nlmsg_free(msg);
11064}
947add36 11065EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11066
947add36
JB		 11067void cfg80211_cqm_rssi_notify(struct net_device *dev,
11068 enum nl80211_cqm_rssi_threshold_event rssi_event,
11069 gfp_t gfp)
d6dc1a38 11070{
947add36
JB		 11071 struct wireless_dev *wdev = dev->ieee80211_ptr;
11072 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11073 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11074 struct sk_buff *msg;
11075 struct nlattr *pinfoattr;
11076 void *hdr;
11077
947add36
JB		 11078 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11079
58050fce 11080 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11081 if (!msg)
11082 return;
11083
11084 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11085 if (!hdr) {
11086 nlmsg_free(msg);
11087 return;
11088 }
11089
9360ffd1 11090 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11091 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11092 goto nla_put_failure;
d6dc1a38
JO		 11093
11094 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11095 if (!pinfoattr)
11096 goto nla_put_failure;
11097
9360ffd1
DM		 11098 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11099 rssi_event))
11100 goto nla_put_failure;
d6dc1a38
JO		 11101
11102 nla_nest_end(msg, pinfoattr);
11103
3b7b72ee 11104 genlmsg_end(msg, hdr);
d6dc1a38 11105
68eb5503 11106 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11107 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11108 return;
11109
11110 nla_put_failure:
11111 genlmsg_cancel(msg, hdr);
11112 nlmsg_free(msg);
11113}
947add36 11114EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11115
947add36
JB		 11116static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11117 struct net_device *netdev, const u8 *bssid,
11118 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11119{
11120 struct sk_buff *msg;
11121 struct nlattr *rekey_attr;
11122 void *hdr;
11123
58050fce 11124 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11125 if (!msg)
11126 return;
11127
11128 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11129 if (!hdr) {
11130 nlmsg_free(msg);
11131 return;
11132 }
11133
9360ffd1
DM		 11134 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11135 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11136 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11137 goto nla_put_failure;
e5497d76
JB		 11138
11139 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11140 if (!rekey_attr)
11141 goto nla_put_failure;
11142
9360ffd1
DM		 11143 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11144 NL80211_REPLAY_CTR_LEN, replay_ctr))
11145 goto nla_put_failure;
e5497d76
JB		 11146
11147 nla_nest_end(msg, rekey_attr);
11148
3b7b72ee 11149 genlmsg_end(msg, hdr);
e5497d76 11150
68eb5503 11151 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11152 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11153 return;
11154
11155 nla_put_failure:
11156 genlmsg_cancel(msg, hdr);
11157 nlmsg_free(msg);
11158}
11159
947add36
JB		 11160void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11161 const u8 *replay_ctr, gfp_t gfp)
11162{
11163 struct wireless_dev *wdev = dev->ieee80211_ptr;
11164 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11165 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11166
11167 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11168 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11169}
11170EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11171
11172static void
11173nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11174 struct net_device *netdev, int index,
11175 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11176{
11177 struct sk_buff *msg;
11178 struct nlattr *attr;
11179 void *hdr;
11180
58050fce 11181 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11182 if (!msg)
11183 return;
11184
11185 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11186 if (!hdr) {
11187 nlmsg_free(msg);
11188 return;
11189 }
11190
9360ffd1
DM		 11191 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11192 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11193 goto nla_put_failure;
c9df56b4
JM		 11194
11195 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11196 if (!attr)
11197 goto nla_put_failure;
11198
9360ffd1
DM		 11199 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11200 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11201 (preauth &&
11202 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11203 goto nla_put_failure;
c9df56b4
JM		 11204
11205 nla_nest_end(msg, attr);
11206
3b7b72ee 11207 genlmsg_end(msg, hdr);
c9df56b4 11208
68eb5503 11209 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11210 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11211 return;
11212
11213 nla_put_failure:
11214 genlmsg_cancel(msg, hdr);
11215 nlmsg_free(msg);
11216}
11217
947add36
JB		 11218void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11219 const u8 *bssid, bool preauth, gfp_t gfp)
11220{
11221 struct wireless_dev *wdev = dev->ieee80211_ptr;
11222 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11223 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11224
11225 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11226 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11227}
11228EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11229
11230static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11231 struct net_device *netdev,
11232 struct cfg80211_chan_def *chandef,
11233 gfp_t gfp)
5314526b
TP		 11234{
11235 struct sk_buff *msg;
11236 void *hdr;
11237
58050fce 11238 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11239 if (!msg)
11240 return;
11241
11242 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11243 if (!hdr) {
11244 nlmsg_free(msg);
11245 return;
11246 }
11247
683b6d3b
JB		 11248 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11249 goto nla_put_failure;
11250
11251 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11252 goto nla_put_failure;
5314526b
TP		 11253
11254 genlmsg_end(msg, hdr);
11255
68eb5503 11256 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11257 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11258 return;
11259
11260 nla_put_failure:
11261 genlmsg_cancel(msg, hdr);
11262 nlmsg_free(msg);
11263}
11264
947add36
JB		 11265void cfg80211_ch_switch_notify(struct net_device *dev,
11266 struct cfg80211_chan_def *chandef)
84f10708 11267{
947add36
JB		 11268 struct wireless_dev *wdev = dev->ieee80211_ptr;
11269 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11270 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11271
e487eaeb 11272 ASSERT_WDEV_LOCK(wdev);
947add36 11273
e487eaeb 11274 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11275
11276 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11277 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11278 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11279 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11280 return;
947add36 11281
9e0e2961 11282 wdev->chandef = *chandef;
96f55f12 11283 wdev->preset_chandef = *chandef;
947add36 11284 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11285}
11286EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11287
11288void cfg80211_cqm_txe_notify(struct net_device *dev,
11289 const u8 *peer, u32 num_packets,
11290 u32 rate, u32 intvl, gfp_t gfp)
11291{
11292 struct wireless_dev *wdev = dev->ieee80211_ptr;
11293 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11294 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11295 struct sk_buff *msg;
11296 struct nlattr *pinfoattr;
11297 void *hdr;
11298
11299 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11300 if (!msg)
11301 return;
11302
11303 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11304 if (!hdr) {
11305 nlmsg_free(msg);
11306 return;
11307 }
11308
11309 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11310 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11311 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11312 goto nla_put_failure;
11313
11314 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11315 if (!pinfoattr)
11316 goto nla_put_failure;
11317
11318 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11319 goto nla_put_failure;
11320
11321 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11322 goto nla_put_failure;
11323
11324 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11325 goto nla_put_failure;
11326
11327 nla_nest_end(msg, pinfoattr);
11328
11329 genlmsg_end(msg, hdr);
11330
68eb5503 11331 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11332 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11333 return;
11334
11335 nla_put_failure:
11336 genlmsg_cancel(msg, hdr);
11337 nlmsg_free(msg);
11338}
947add36 11339EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11340
04f39047
SW		 11341void
11342nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11343 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11344 enum nl80211_radar_event event,
11345 struct net_device *netdev, gfp_t gfp)
11346{
11347 struct sk_buff *msg;
11348 void *hdr;
11349
11350 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11351 if (!msg)
11352 return;
11353
11354 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11355 if (!hdr) {
11356 nlmsg_free(msg);
11357 return;
11358 }
11359
11360 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11361 goto nla_put_failure;
11362
11363 /* NOP and radar events don't need a netdev parameter */
11364 if (netdev) {
11365 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11366
11367 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11368 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11369 goto nla_put_failure;
11370 }
11371
11372 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11373 goto nla_put_failure;
11374
11375 if (nl80211_send_chandef(msg, chandef))
11376 goto nla_put_failure;
11377
9c90a9f6 11378 genlmsg_end(msg, hdr);
04f39047 11379
68eb5503 11380 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11381 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11382 return;
11383
11384 nla_put_failure:
11385 genlmsg_cancel(msg, hdr);
11386 nlmsg_free(msg);
11387}
11388
947add36
JB		 11389void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11390 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11391{
947add36
JB		 11392 struct wireless_dev *wdev = dev->ieee80211_ptr;
11393 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11394 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11395 struct sk_buff *msg;
11396 struct nlattr *pinfoattr;
11397 void *hdr;
11398
947add36
JB		 11399 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11400
58050fce 11401 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11402 if (!msg)
11403 return;
11404
11405 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11406 if (!hdr) {
11407 nlmsg_free(msg);
11408 return;
11409 }
11410
9360ffd1 11411 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11412 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11413 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11414 goto nla_put_failure;
c063dbf5
JB		 11415
11416 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11417 if (!pinfoattr)
11418 goto nla_put_failure;
11419
9360ffd1
DM		 11420 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11421 goto nla_put_failure;
c063dbf5
JB		 11422
11423 nla_nest_end(msg, pinfoattr);
11424
3b7b72ee 11425 genlmsg_end(msg, hdr);
c063dbf5 11426
68eb5503 11427 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11428 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11429 return;
11430
11431 nla_put_failure:
11432 genlmsg_cancel(msg, hdr);
11433 nlmsg_free(msg);
11434}
947add36 11435EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11436
7f6cf311
JB		 11437void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11438 u64 cookie, bool acked, gfp_t gfp)
11439{
11440 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11441 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 11442 struct sk_buff *msg;
11443 void *hdr;
7f6cf311 11444
4ee3e063
BL		 11445 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11446
58050fce 11447 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11448
7f6cf311
JB		 11449 if (!msg)
11450 return;
11451
11452 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11453 if (!hdr) {
11454 nlmsg_free(msg);
11455 return;
11456 }
11457
9360ffd1
DM		 11458 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11459 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11460 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11461 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11462 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11463 goto nla_put_failure;
7f6cf311 11464
9c90a9f6 11465 genlmsg_end(msg, hdr);
7f6cf311 11466
68eb5503 11467 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11468 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11469 return;
11470
11471 nla_put_failure:
11472 genlmsg_cancel(msg, hdr);
11473 nlmsg_free(msg);
11474}
11475EXPORT_SYMBOL(cfg80211_probe_status);
11476
5e760230
JB		 11477void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11478 const u8 *frame, size_t len,
37c73b5f 11479 int freq, int sig_dbm)
5e760230 11480{
f26cbf40 11481 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 11482 struct sk_buff *msg;
11483 void *hdr;
37c73b5f 11484 struct cfg80211_beacon_registration *reg;
5e760230 11485
4ee3e063
BL		 11486 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11487
37c73b5f
BG		 11488 spin_lock_bh(&rdev->beacon_registrations_lock);
11489 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11490 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11491 if (!msg) {
11492 spin_unlock_bh(&rdev->beacon_registrations_lock);
11493 return;
11494 }
5e760230 11495
37c73b5f
BG		 11496 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11497 if (!hdr)
11498 goto nla_put_failure;
5e760230 11499
37c73b5f
BG		 11500 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11501 (freq &&
11502 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11503 (sig_dbm &&
11504 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11505 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11506 goto nla_put_failure;
5e760230 11507
37c73b5f 11508 genlmsg_end(msg, hdr);
5e760230 11509
37c73b5f
BG		 11510 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11511 }
11512 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11513 return;
11514
11515 nla_put_failure:
37c73b5f
BG		 11516 spin_unlock_bh(&rdev->beacon_registrations_lock);
11517 if (hdr)
11518 genlmsg_cancel(msg, hdr);
5e760230
JB		 11519 nlmsg_free(msg);
11520}
11521EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11522
cd8f7cb4
JB		 11523#ifdef CONFIG_PM
11524void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11525 struct cfg80211_wowlan_wakeup *wakeup,
11526 gfp_t gfp)
11527{
f26cbf40 11528 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 11529 struct sk_buff *msg;
11530 void *hdr;
9c90a9f6 11531 int size = 200;
cd8f7cb4
JB		 11532
11533 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11534
11535 if (wakeup)
11536 size += wakeup->packet_present_len;
11537
11538 msg = nlmsg_new(size, gfp);
11539 if (!msg)
11540 return;
11541
11542 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11543 if (!hdr)
11544 goto free_msg;
11545
11546 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11547 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11548 goto free_msg;
11549
11550 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11551 wdev->netdev->ifindex))
11552 goto free_msg;
11553
11554 if (wakeup) {
11555 struct nlattr *reasons;
11556
11557 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11558 if (!reasons)
11559 goto free_msg;
cd8f7cb4
JB		 11560
11561 if (wakeup->disconnect &&
11562 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11563 goto free_msg;
11564 if (wakeup->magic_pkt &&
11565 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11566 goto free_msg;
11567 if (wakeup->gtk_rekey_failure &&
11568 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11569 goto free_msg;
11570 if (wakeup->eap_identity_req &&
11571 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11572 goto free_msg;
11573 if (wakeup->four_way_handshake &&
11574 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11575 goto free_msg;
11576 if (wakeup->rfkill_release &&
11577 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11578 goto free_msg;
11579
11580 if (wakeup->pattern_idx >= 0 &&
11581 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11582 wakeup->pattern_idx))
11583 goto free_msg;
11584
ae917c9f
JB		 11585 if (wakeup->tcp_match &&
11586 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11587 goto free_msg;
2a0e047e 11588
ae917c9f
JB		 11589 if (wakeup->tcp_connlost &&
11590 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11591 goto free_msg;
2a0e047e 11592
ae917c9f
JB		 11593 if (wakeup->tcp_nomoretokens &&
11594 nla_put_flag(msg,
11595 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11596 goto free_msg;
2a0e047e 11597
cd8f7cb4
JB		 11598 if (wakeup->packet) {
11599 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11600 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11601
11602 if (!wakeup->packet_80211) {
11603 pkt_attr =
11604 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11605 len_attr =
11606 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11607 }
11608
11609 if (wakeup->packet_len &&
11610 nla_put_u32(msg, len_attr, wakeup->packet_len))
11611 goto free_msg;
11612
11613 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11614 wakeup->packet))
11615 goto free_msg;
11616 }
11617
11618 nla_nest_end(msg, reasons);
11619 }
11620
9c90a9f6 11621 genlmsg_end(msg, hdr);
cd8f7cb4 11622
68eb5503 11623 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11624 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11625 return;
11626
11627 free_msg:
11628 nlmsg_free(msg);
11629}
11630EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11631#endif
11632
3475b094
JM		 11633void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11634 enum nl80211_tdls_operation oper,
11635 u16 reason_code, gfp_t gfp)
11636{
11637 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11638 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 11639 struct sk_buff *msg;
11640 void *hdr;
3475b094
JM		 11641
11642 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11643 reason_code);
11644
11645 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11646 if (!msg)
11647 return;
11648
11649 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11650 if (!hdr) {
11651 nlmsg_free(msg);
11652 return;
11653 }
11654
11655 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11656 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11657 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11658 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11659 (reason_code > 0 &&
11660 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11661 goto nla_put_failure;
11662
9c90a9f6 11663 genlmsg_end(msg, hdr);
3475b094 11664
68eb5503 11665 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11666 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11667 return;
11668
11669 nla_put_failure:
11670 genlmsg_cancel(msg, hdr);
11671 nlmsg_free(msg);
11672}
11673EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11674
026331c4
JM		 11675static int nl80211_netlink_notify(struct notifier_block * nb,
11676 unsigned long state,
11677 void *_notify)
11678{
11679 struct netlink_notify *notify = _notify;
11680 struct cfg80211_registered_device *rdev;
11681 struct wireless_dev *wdev;
37c73b5f 11682 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11683
11684 if (state != NETLINK_URELEASE)
11685 return NOTIFY_DONE;
11686
11687 rcu_read_lock();
11688
5e760230 11689 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 11690 bool schedule_destroy_work = false;
11691
11692 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 11693 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 11694
78f22b6a
JB		 11695 if (wdev->owner_nlportid == notify->portid)
11696 schedule_destroy_work = true;
11697 }
11698
37c73b5f
BG		 11699 spin_lock_bh(&rdev->beacon_registrations_lock);
11700 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11701 list) {
11702 if (reg->nlportid == notify->portid) {
11703 list_del(&reg->list);
11704 kfree(reg);
11705 break;
11706 }
11707 }
11708 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 11709
11710 if (schedule_destroy_work) {
11711 struct cfg80211_iface_destroy *destroy;
11712
11713 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11714 if (destroy) {
11715 destroy->nlportid = notify->portid;
11716 spin_lock(&rdev->destroy_list_lock);
11717 list_add(&destroy->list, &rdev->destroy_list);
11718 spin_unlock(&rdev->destroy_list_lock);
11719 schedule_work(&rdev->destroy_work);
11720 }
11721 }
5e760230 11722 }
026331c4
JM		 11723
11724 rcu_read_unlock();
11725
6784c7db 11726 return NOTIFY_OK;
026331c4
JM		 11727}
11728
11729static struct notifier_block nl80211_netlink_notifier = {
11730 .notifier_call = nl80211_netlink_notify,
11731};
11732
355199e0
JM		 11733void cfg80211_ft_event(struct net_device *netdev,
11734 struct cfg80211_ft_event_params *ft_event)
11735{
11736 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 11737 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 11738 struct sk_buff *msg;
11739 void *hdr;
355199e0
JM		 11740
11741 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11742
11743 if (!ft_event->target_ap)
11744 return;
11745
11746 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11747 if (!msg)
11748 return;
11749
11750 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11751 if (!hdr)
11752 goto out;
355199e0 11753
ae917c9f
JB		 11754 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11755 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11756 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11757 goto out;
355199e0 11758
ae917c9f
JB		 11759 if (ft_event->ies &&
11760 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11761 goto out;
11762 if (ft_event->ric_ies &&
11763 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11764 ft_event->ric_ies))
11765 goto out;
355199e0 11766
9c90a9f6 11767 genlmsg_end(msg, hdr);
355199e0 11768
68eb5503 11769 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11770 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11771 return;
11772 out:
11773 nlmsg_free(msg);
355199e0
JM		 11774}
11775EXPORT_SYMBOL(cfg80211_ft_event);
11776
5de17984
AS		 11777void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11778{
11779 struct cfg80211_registered_device *rdev;
11780 struct sk_buff *msg;
11781 void *hdr;
11782 u32 nlportid;
11783
f26cbf40 11784 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 11785 if (!rdev->crit_proto_nlportid)
11786 return;
11787
11788 nlportid = rdev->crit_proto_nlportid;
11789 rdev->crit_proto_nlportid = 0;
11790
11791 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11792 if (!msg)
11793 return;
11794
11795 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11796 if (!hdr)
11797 goto nla_put_failure;
11798
11799 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11800 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11801 goto nla_put_failure;
11802
11803 genlmsg_end(msg, hdr);
11804
11805 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11806 return;
11807
11808 nla_put_failure:
11809 if (hdr)
11810 genlmsg_cancel(msg, hdr);
11811 nlmsg_free(msg);
11812
11813}
11814EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11815
348baf0e
JB		 11816void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11817{
11818 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11819 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 11820 struct sk_buff *msg;
11821 void *hdr;
11822
11823 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11824 if (!msg)
11825 return;
11826
11827 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11828 if (!hdr)
11829 goto out;
11830
11831 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11832 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11833 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11834 goto out;
11835
11836 genlmsg_end(msg, hdr);
11837
11838 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11839 NL80211_MCGRP_MLME, GFP_KERNEL);
11840 return;
11841 out:
11842 nlmsg_free(msg);
11843}
11844
55682965
JB		 11845/* initialisation/exit functions */
11846
11847int nl80211_init(void)
11848{
0d63cbb5 11849 int err;
55682965 11850
2a94fe48
JB		 11851 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11852 nl80211_mcgrps);
55682965
JB		 11853 if (err)
11854 return err;
11855
026331c4
JM		 11856 err = netlink_register_notifier(&nl80211_netlink_notifier);
11857 if (err)
11858 goto err_out;
11859
55682965
JB		 11860 return 0;
11861 err_out:
11862 genl_unregister_family(&nl80211_fam);
11863 return err;
11864}
11865
11866void nl80211_exit(void)
11867{
026331c4 11868 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11869 genl_unregister_family(&nl80211_fam);
11870}
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