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cfg80211: fix start_radar_detection issue
[deliverable/linux.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
f84f771d 33static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 34 struct genl_info *info);
f84f771d 35static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
fb4e1568
MH		 40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
55682965 44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
2a94fe48
JB		 50/* multicast groups */
51enum nl80211_multicast_groups {
52 NL80211_MCGRP_CONFIG,
53 NL80211_MCGRP_SCAN,
54 NL80211_MCGRP_REGULATORY,
55 NL80211_MCGRP_MLME,
567ffc35 56 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 57 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
58};
59
60static const struct genl_multicast_group nl80211_mcgrps[] = {
61 [NL80211_MCGRP_CONFIG] = { .name = "config", },
62 [NL80211_MCGRP_SCAN] = { .name = "scan", },
63 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
64 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 65 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 66#ifdef CONFIG_NL80211_TESTMODE
67 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
68#endif
69};
70
89a54e48
JB		 71/* returns ERR_PTR values */
72static struct wireless_dev *
73__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 74{
89a54e48
JB		 75 struct cfg80211_registered_device *rdev;
76 struct wireless_dev *result = NULL;
77 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
78 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
79 u64 wdev_id;
80 int wiphy_idx = -1;
81 int ifidx = -1;
55682965 82
5fe231e8 83 ASSERT_RTNL();
55682965 84
89a54e48
JB		 85 if (!have_ifidx && !have_wdev_id)
86 return ERR_PTR(-EINVAL);
55682965 87
89a54e48
JB		 88 if (have_ifidx)
89 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
90 if (have_wdev_id) {
91 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
92 wiphy_idx = wdev_id >> 32;
55682965
JB		 93 }
94
89a54e48
JB		 95 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
96 struct wireless_dev *wdev;
97
98 if (wiphy_net(&rdev->wiphy) != netns)
99 continue;
100
101 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
102 continue;
103
89a54e48
JB		 104 list_for_each_entry(wdev, &rdev->wdev_list, list) {
105 if (have_ifidx && wdev->netdev &&
106 wdev->netdev->ifindex == ifidx) {
107 result = wdev;
108 break;
109 }
110 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
111 result = wdev;
112 break;
113 }
114 }
89a54e48
JB		 115
116 if (result)
117 break;
118 }
119
120 if (result)
121 return result;
122 return ERR_PTR(-ENODEV);
55682965
JB		 123}
124
a9455408 125static struct cfg80211_registered_device *
878d9ec7 126__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 127{
7fee4778
JB		 128 struct cfg80211_registered_device *rdev = NULL, *tmp;
129 struct net_device *netdev;
a9455408 130
5fe231e8 131 ASSERT_RTNL();
a9455408 132
878d9ec7 133 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 134 !attrs[NL80211_ATTR_IFINDEX] &&
135 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 136 return ERR_PTR(-EINVAL);
137
878d9ec7 138 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 139 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 140 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 141
89a54e48
JB		 142 if (attrs[NL80211_ATTR_WDEV]) {
143 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
144 struct wireless_dev *wdev;
145 bool found = false;
146
147 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
148 if (tmp) {
149 /* make sure wdev exists */
89a54e48
JB		 150 list_for_each_entry(wdev, &tmp->wdev_list, list) {
151 if (wdev->identifier != (u32)wdev_id)
152 continue;
153 found = true;
154 break;
155 }
89a54e48
JB		 156
157 if (!found)
158 tmp = NULL;
159
160 if (rdev && tmp != rdev)
161 return ERR_PTR(-EINVAL);
162 rdev = tmp;
163 }
164 }
165
878d9ec7
JB		 166 if (attrs[NL80211_ATTR_IFINDEX]) {
167 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 168 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 169 if (netdev) {
170 if (netdev->ieee80211_ptr)
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 },
55682965
JB		 389};
390
e31b8213 391/* policy for the key attributes */
b54452b0 392static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 393 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 394 [NL80211_KEY_IDX] = { .type = NLA_U8 },
395 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 396 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 397 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
398 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 399 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 400 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
401};
402
403/* policy for the key default flags */
404static const struct nla_policy
405nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
406 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
407 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 408};
409
ff1b6e69
JB		 410/* policy for WoWLAN attributes */
411static const struct nla_policy
412nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
413 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
414 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
415 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 417 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
418 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
420 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 421 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
422};
423
424static const struct nla_policy
425nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
426 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
427 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
428 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
429 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
430 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
431 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
432 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
433 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
434 },
435 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
436 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
437 },
438 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
439 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
440 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 441};
442
be29b99a
AK		 443/* policy for coalesce rule attributes */
444static const struct nla_policy
445nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
446 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
447 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
448 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
449};
450
e5497d76
JB		 451/* policy for GTK rekey offload attributes */
452static const struct nla_policy
453nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
454 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
455 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
456 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
457};
458
a1f1c21c
LC		 459static const struct nla_policy
460nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 461 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 462 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 463 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 464};
465
97990a06
JB		 466static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
467 struct netlink_callback *cb,
468 struct cfg80211_registered_device **rdev,
469 struct wireless_dev **wdev)
a043897a 470{
97990a06 471 int err;
a043897a 472
97990a06 473 rtnl_lock();
a043897a 474
97990a06
JB		 475 if (!cb->args[0]) {
476 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
477 nl80211_fam.attrbuf, nl80211_fam.maxattr,
478 nl80211_policy);
479 if (err)
480 goto out_unlock;
67748893 481
97990a06
JB		 482 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
483 nl80211_fam.attrbuf);
484 if (IS_ERR(*wdev)) {
485 err = PTR_ERR(*wdev);
486 goto out_unlock;
487 }
f26cbf40 488 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 489 /* 0 is the first index - add 1 to parse only once */
490 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 491 cb->args[1] = (*wdev)->identifier;
492 } else {
c319d50b
JB		 493 /* subtract the 1 again here */
494 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 495 struct wireless_dev *tmp;
67748893 496
97990a06
JB		 497 if (!wiphy) {
498 err = -ENODEV;
499 goto out_unlock;
500 }
f26cbf40 501 *rdev = wiphy_to_rdev(wiphy);
97990a06 502 *wdev = NULL;
67748893 503
97990a06
JB		 504 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
505 if (tmp->identifier == cb->args[1]) {
506 *wdev = tmp;
507 break;
508 }
509 }
67748893 510
97990a06
JB		 511 if (!*wdev) {
512 err = -ENODEV;
513 goto out_unlock;
514 }
67748893
JB		 515 }
516
67748893 517 return 0;
97990a06 518 out_unlock:
67748893
JB		 519 rtnl_unlock();
520 return err;
521}
522
97990a06 523static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 524{
67748893
JB		 525 rtnl_unlock();
526}
527
f4a11bb0
JB		 528/* IE validation */
529static bool is_valid_ie_attr(const struct nlattr *attr)
530{
531 const u8 *pos;
532 int len;
533
534 if (!attr)
535 return true;
536
537 pos = nla_data(attr);
538 len = nla_len(attr);
539
540 while (len) {
541 u8 elemlen;
542
543 if (len < 2)
544 return false;
545 len -= 2;
546
547 elemlen = pos[1];
548 if (elemlen > len)
549 return false;
550
551 len -= elemlen;
552 pos += 2 + elemlen;
553 }
554
555 return true;
556}
557
55682965 558/* message building helper */
15e47304 559static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 560 int flags, u8 cmd)
561{
562 /* since there is no private header just add the generic one */
15e47304 563 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 564}
565
5dab3b8a 566static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 567 struct ieee80211_channel *chan,
568 bool large)
5dab3b8a 569{
ea077c1c
RL		 570 /* Some channels must be completely excluded from the
571 * list to protect old user-space tools from breaking
572 */
573 if (!large && chan->flags &
574 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
575 return 0;
576
9360ffd1
DM		 577 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
578 chan->center_freq))
579 goto nla_put_failure;
5dab3b8a 580
9360ffd1
DM		 581 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
582 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
583 goto nla_put_failure;
8fe02e16
LR		 584 if (chan->flags & IEEE80211_CHAN_NO_IR) {
585 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
586 goto nla_put_failure;
587 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
588 goto nla_put_failure;
589 }
cdc89b97
JB		 590 if (chan->flags & IEEE80211_CHAN_RADAR) {
591 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
592 goto nla_put_failure;
593 if (large) {
594 u32 time;
595
596 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
597
598 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
599 chan->dfs_state))
600 goto nla_put_failure;
601 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
602 time))
603 goto nla_put_failure;
089027e5
JD		 604 if (nla_put_u32(msg,
605 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
606 chan->dfs_cac_ms))
607 goto nla_put_failure;
cdc89b97
JB		 608 }
609 }
5dab3b8a 610
fe1abafd
JB		 611 if (large) {
612 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
613 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
614 goto nla_put_failure;
615 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
616 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
617 goto nla_put_failure;
618 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
619 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
620 goto nla_put_failure;
621 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
622 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
623 goto nla_put_failure;
570dbde1
DS		 624 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
625 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
626 goto nla_put_failure;
627 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
629 goto nla_put_failure;
ea077c1c
RL		 630 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
632 goto nla_put_failure;
633 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
635 goto nla_put_failure;
fe1abafd
JB		 636 }
637
9360ffd1
DM		 638 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
639 DBM_TO_MBM(chan->max_power)))
640 goto nla_put_failure;
5dab3b8a
LR		 641
642 return 0;
643
644 nla_put_failure:
645 return -ENOBUFS;
646}
647
55682965
JB		 648/* netlink command implementations */
649
b9454e83
JB		 650struct key_parse {
651 struct key_params p;
652 int idx;
e31b8213 653 int type;
b9454e83 654 bool def, defmgmt;
dbd2fd65 655 bool def_uni, def_multi;
b9454e83
JB		 656};
657
658static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
659{
660 struct nlattr *tb[NL80211_KEY_MAX + 1];
661 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
662 nl80211_key_policy);
663 if (err)
664 return err;
665
666 k->def = !!tb[NL80211_KEY_DEFAULT];
667 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
668
dbd2fd65
JB		 669 if (k->def) {
670 k->def_uni = true;
671 k->def_multi = true;
672 }
673 if (k->defmgmt)
674 k->def_multi = true;
675
b9454e83
JB		 676 if (tb[NL80211_KEY_IDX])
677 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
678
679 if (tb[NL80211_KEY_DATA]) {
680 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
681 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
682 }
683
684 if (tb[NL80211_KEY_SEQ]) {
685 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
686 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
687 }
688
689 if (tb[NL80211_KEY_CIPHER])
690 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
691
e31b8213
JB		 692 if (tb[NL80211_KEY_TYPE]) {
693 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
694 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
695 return -EINVAL;
696 }
697
dbd2fd65
JB		 698 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
699 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 700 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
701 tb[NL80211_KEY_DEFAULT_TYPES],
702 nl80211_key_default_policy);
dbd2fd65
JB		 703 if (err)
704 return err;
705
706 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
707 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
708 }
709
b9454e83
JB		 710 return 0;
711}
712
713static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
714{
715 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
716 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
717 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
718 }
719
720 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
721 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
722 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
723 }
724
725 if (info->attrs[NL80211_ATTR_KEY_IDX])
726 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
727
728 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
729 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
730
731 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
732 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
733
dbd2fd65
JB		 734 if (k->def) {
735 k->def_uni = true;
736 k->def_multi = true;
737 }
738 if (k->defmgmt)
739 k->def_multi = true;
740
e31b8213
JB		 741 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
742 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
743 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
744 return -EINVAL;
745 }
746
dbd2fd65
JB		 747 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
748 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
749 int err = nla_parse_nested(
750 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
751 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
752 nl80211_key_default_policy);
753 if (err)
754 return err;
755
756 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
757 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
758 }
759
b9454e83
JB		 760 return 0;
761}
762
763static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
764{
765 int err;
766
767 memset(k, 0, sizeof(*k));
768 k->idx = -1;
e31b8213 769 k->type = -1;
b9454e83
JB		 770
771 if (info->attrs[NL80211_ATTR_KEY])
772 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
773 else
774 err = nl80211_parse_key_old(info, k);
775
776 if (err)
777 return err;
778
779 if (k->def && k->defmgmt)
780 return -EINVAL;
781
dbd2fd65
JB		 782 if (k->defmgmt) {
783 if (k->def_uni || !k->def_multi)
784 return -EINVAL;
785 }
786
b9454e83
JB		 787 if (k->idx != -1) {
788 if (k->defmgmt) {
789 if (k->idx < 4 || k->idx > 5)
790 return -EINVAL;
791 } else if (k->def) {
792 if (k->idx < 0 || k->idx > 3)
793 return -EINVAL;
794 } else {
795 if (k->idx < 0 || k->idx > 5)
796 return -EINVAL;
797 }
798 }
799
800 return 0;
801}
802
fffd0934
JB		 803static struct cfg80211_cached_keys *
804nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 805 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 806{
807 struct key_parse parse;
808 struct nlattr *key;
809 struct cfg80211_cached_keys *result;
810 int rem, err, def = 0;
811
812 result = kzalloc(sizeof(*result), GFP_KERNEL);
813 if (!result)
814 return ERR_PTR(-ENOMEM);
815
816 result->def = -1;
817 result->defmgmt = -1;
818
819 nla_for_each_nested(key, keys, rem) {
820 memset(&parse, 0, sizeof(parse));
821 parse.idx = -1;
822
823 err = nl80211_parse_key_new(key, &parse);
824 if (err)
825 goto error;
826 err = -EINVAL;
827 if (!parse.p.key)
828 goto error;
829 if (parse.idx < 0 || parse.idx > 4)
830 goto error;
831 if (parse.def) {
832 if (def)
833 goto error;
834 def = 1;
835 result->def = parse.idx;
dbd2fd65
JB		 836 if (!parse.def_uni || !parse.def_multi)
837 goto error;
fffd0934
JB		 838 } else if (parse.defmgmt)
839 goto error;
840 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 841 parse.idx, false, NULL);
fffd0934
JB		 842 if (err)
843 goto error;
844 result->params[parse.idx].cipher = parse.p.cipher;
845 result->params[parse.idx].key_len = parse.p.key_len;
846 result->params[parse.idx].key = result->data[parse.idx];
847 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 848
849 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
850 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
851 if (no_ht)
852 *no_ht = true;
853 }
fffd0934
JB		 854 }
855
856 return result;
857 error:
858 kfree(result);
859 return ERR_PTR(err);
860}
861
862static int nl80211_key_allowed(struct wireless_dev *wdev)
863{
864 ASSERT_WDEV_LOCK(wdev);
865
fffd0934
JB		 866 switch (wdev->iftype) {
867 case NL80211_IFTYPE_AP:
868 case NL80211_IFTYPE_AP_VLAN:
074ac8df 869 case NL80211_IFTYPE_P2P_GO:
ff973af7 870 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 871 break;
872 case NL80211_IFTYPE_ADHOC:
fffd0934 873 case NL80211_IFTYPE_STATION:
074ac8df 874 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 875 if (!wdev->current_bss)
fffd0934
JB		 876 return -ENOLINK;
877 break;
878 default:
879 return -EINVAL;
880 }
881
882 return 0;
883}
884
664834de
JM		 885static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
886 struct nlattr *tb)
887{
888 struct ieee80211_channel *chan;
889
890 if (tb == NULL)
891 return NULL;
892 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
893 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
894 return NULL;
895 return chan;
896}
897
7527a782
JB		 898static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
899{
900 struct nlattr *nl_modes = nla_nest_start(msg, attr);
901 int i;
902
903 if (!nl_modes)
904 goto nla_put_failure;
905
906 i = 0;
907 while (ifmodes) {
9360ffd1
DM		 908 if ((ifmodes & 1) && nla_put_flag(msg, i))
909 goto nla_put_failure;
7527a782
JB		 910 ifmodes >>= 1;
911 i++;
912 }
913
914 nla_nest_end(msg, nl_modes);
915 return 0;
916
917nla_put_failure:
918 return -ENOBUFS;
919}
920
921static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 922 struct sk_buff *msg,
923 bool large)
7527a782
JB		 924{
925 struct nlattr *nl_combis;
926 int i, j;
927
928 nl_combis = nla_nest_start(msg,
929 NL80211_ATTR_INTERFACE_COMBINATIONS);
930 if (!nl_combis)
931 goto nla_put_failure;
932
933 for (i = 0; i < wiphy->n_iface_combinations; i++) {
934 const struct ieee80211_iface_combination *c;
935 struct nlattr *nl_combi, *nl_limits;
936
937 c = &wiphy->iface_combinations[i];
938
939 nl_combi = nla_nest_start(msg, i + 1);
940 if (!nl_combi)
941 goto nla_put_failure;
942
943 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
944 if (!nl_limits)
945 goto nla_put_failure;
946
947 for (j = 0; j < c->n_limits; j++) {
948 struct nlattr *nl_limit;
949
950 nl_limit = nla_nest_start(msg, j + 1);
951 if (!nl_limit)
952 goto nla_put_failure;
9360ffd1
DM		 953 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
954 c->limits[j].max))
955 goto nla_put_failure;
7527a782
JB		 956 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
957 c->limits[j].types))
958 goto nla_put_failure;
959 nla_nest_end(msg, nl_limit);
960 }
961
962 nla_nest_end(msg, nl_limits);
963
9360ffd1
DM		 964 if (c->beacon_int_infra_match &&
965 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
966 goto nla_put_failure;
967 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
968 c->num_different_channels) ||
969 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
970 c->max_interfaces))
971 goto nla_put_failure;
cdc89b97 972 if (large &&
8c48b50a
FF		 973 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
974 c->radar_detect_widths) ||
975 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
976 c->radar_detect_regions)))
cdc89b97 977 goto nla_put_failure;
7527a782
JB		 978
979 nla_nest_end(msg, nl_combi);
980 }
981
982 nla_nest_end(msg, nl_combis);
983
984 return 0;
985nla_put_failure:
986 return -ENOBUFS;
987}
988
3713b4e3 989#ifdef CONFIG_PM
b56cf720
JB		 990static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
991 struct sk_buff *msg)
992{
964dc9e2 993 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 994 struct nlattr *nl_tcp;
995
996 if (!tcp)
997 return 0;
998
999 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1000 if (!nl_tcp)
1001 return -ENOBUFS;
1002
1003 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1004 tcp->data_payload_max))
1005 return -ENOBUFS;
1006
1007 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1008 tcp->data_payload_max))
1009 return -ENOBUFS;
1010
1011 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1012 return -ENOBUFS;
1013
1014 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1015 sizeof(*tcp->tok), tcp->tok))
1016 return -ENOBUFS;
1017
1018 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1019 tcp->data_interval_max))
1020 return -ENOBUFS;
1021
1022 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1023 tcp->wake_payload_max))
1024 return -ENOBUFS;
1025
1026 nla_nest_end(msg, nl_tcp);
1027 return 0;
1028}
1029
3713b4e3 1030static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1031 struct cfg80211_registered_device *rdev,
b56cf720 1032 bool large)
55682965 1033{
3713b4e3 1034 struct nlattr *nl_wowlan;
55682965 1035
1b8ec87a 1036 if (!rdev->wiphy.wowlan)
3713b4e3 1037 return 0;
55682965 1038
3713b4e3
JB		 1039 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1040 if (!nl_wowlan)
1041 return -ENOBUFS;
9360ffd1 1042
1b8ec87a 1043 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1044 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1045 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1046 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1047 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1048 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1049 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1050 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1051 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1052 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1053 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1054 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1055 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1056 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1057 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1058 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1059 return -ENOBUFS;
9360ffd1 1060
1b8ec87a 1061 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1062 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1063 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1064 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1065 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1066 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1067 };
9360ffd1 1068
3713b4e3
JB		 1069 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1070 sizeof(pat), &pat))
1071 return -ENOBUFS;
1072 }
9360ffd1 1073
1b8ec87a 1074 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1075 return -ENOBUFS;
1076
3713b4e3 1077 nla_nest_end(msg, nl_wowlan);
9360ffd1 1078
3713b4e3
JB		 1079 return 0;
1080}
1081#endif
9360ffd1 1082
be29b99a 1083static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1084 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1085{
1086 struct nl80211_coalesce_rule_support rule;
1087
1b8ec87a 1088 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1089 return 0;
1090
1b8ec87a
ZG		 1091 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1092 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1093 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1094 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1095 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1096 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1097
1098 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1099 return -ENOBUFS;
1100
1101 return 0;
1102}
1103
3713b4e3
JB		 1104static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1105 struct ieee80211_supported_band *sband)
1106{
1107 struct nlattr *nl_rates, *nl_rate;
1108 struct ieee80211_rate *rate;
1109 int i;
87bbbe22 1110
3713b4e3
JB		 1111 /* add HT info */
1112 if (sband->ht_cap.ht_supported &&
1113 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1114 sizeof(sband->ht_cap.mcs),
1115 &sband->ht_cap.mcs) ||
1116 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1117 sband->ht_cap.cap) ||
1118 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1119 sband->ht_cap.ampdu_factor) ||
1120 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1121 sband->ht_cap.ampdu_density)))
1122 return -ENOBUFS;
afe0cbf8 1123
3713b4e3
JB		 1124 /* add VHT info */
1125 if (sband->vht_cap.vht_supported &&
1126 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1127 sizeof(sband->vht_cap.vht_mcs),
1128 &sband->vht_cap.vht_mcs) ||
1129 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1130 sband->vht_cap.cap)))
1131 return -ENOBUFS;
f59ac048 1132
3713b4e3
JB		 1133 /* add bitrates */
1134 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1135 if (!nl_rates)
1136 return -ENOBUFS;
ee688b00 1137
3713b4e3
JB		 1138 for (i = 0; i < sband->n_bitrates; i++) {
1139 nl_rate = nla_nest_start(msg, i);
1140 if (!nl_rate)
1141 return -ENOBUFS;
ee688b00 1142
3713b4e3
JB		 1143 rate = &sband->bitrates[i];
1144 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1145 rate->bitrate))
1146 return -ENOBUFS;
1147 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1148 nla_put_flag(msg,
1149 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1150 return -ENOBUFS;
ee688b00 1151
3713b4e3
JB		 1152 nla_nest_end(msg, nl_rate);
1153 }
d51626df 1154
3713b4e3 1155 nla_nest_end(msg, nl_rates);
bf0c111e 1156
3713b4e3
JB		 1157 return 0;
1158}
ee688b00 1159
3713b4e3
JB		 1160static int
1161nl80211_send_mgmt_stypes(struct sk_buff *msg,
1162 const struct ieee80211_txrx_stypes *mgmt_stypes)
1163{
1164 u16 stypes;
1165 struct nlattr *nl_ftypes, *nl_ifs;
1166 enum nl80211_iftype ift;
1167 int i;
ee688b00 1168
3713b4e3
JB		 1169 if (!mgmt_stypes)
1170 return 0;
5dab3b8a 1171
3713b4e3
JB		 1172 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1173 if (!nl_ifs)
1174 return -ENOBUFS;
e2f367f2 1175
3713b4e3
JB		 1176 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1177 nl_ftypes = nla_nest_start(msg, ift);
1178 if (!nl_ftypes)
1179 return -ENOBUFS;
1180 i = 0;
1181 stypes = mgmt_stypes[ift].tx;
1182 while (stypes) {
1183 if ((stypes & 1) &&
1184 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1185 (i << 4) | IEEE80211_FTYPE_MGMT))
1186 return -ENOBUFS;
1187 stypes >>= 1;
1188 i++;
ee688b00 1189 }
3713b4e3
JB		 1190 nla_nest_end(msg, nl_ftypes);
1191 }
ee688b00 1192
3713b4e3 1193 nla_nest_end(msg, nl_ifs);
ee688b00 1194
3713b4e3
JB		 1195 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1196 if (!nl_ifs)
1197 return -ENOBUFS;
ee688b00 1198
3713b4e3
JB		 1199 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1200 nl_ftypes = nla_nest_start(msg, ift);
1201 if (!nl_ftypes)
1202 return -ENOBUFS;
1203 i = 0;
1204 stypes = mgmt_stypes[ift].rx;
1205 while (stypes) {
1206 if ((stypes & 1) &&
1207 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1208 (i << 4) | IEEE80211_FTYPE_MGMT))
1209 return -ENOBUFS;
1210 stypes >>= 1;
1211 i++;
1212 }
1213 nla_nest_end(msg, nl_ftypes);
1214 }
1215 nla_nest_end(msg, nl_ifs);
ee688b00 1216
3713b4e3
JB		 1217 return 0;
1218}
ee688b00 1219
86e8cf98
JB		 1220struct nl80211_dump_wiphy_state {
1221 s64 filter_wiphy;
1222 long start;
1223 long split_start, band_start, chan_start;
1224 bool split;
1225};
1226
1b8ec87a 1227static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3713b4e3 1228 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1229 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1230{
1231 void *hdr;
1232 struct nlattr *nl_bands, *nl_band;
1233 struct nlattr *nl_freqs, *nl_freq;
1234 struct nlattr *nl_cmds;
1235 enum ieee80211_band band;
1236 struct ieee80211_channel *chan;
1237 int i;
1238 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1239 rdev->wiphy.mgmt_stypes;
fe1abafd 1240 u32 features;
ee688b00 1241
3713b4e3
JB		 1242 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1243 if (!hdr)
1244 return -ENOBUFS;
ee688b00 1245
86e8cf98
JB		 1246 if (WARN_ON(!state))
1247 return -EINVAL;
ee688b00 1248
1b8ec87a 1249 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1250 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1251 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1252 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1253 cfg80211_rdev_list_generation))
8fdc621d
JB		 1254 goto nla_put_failure;
1255
86e8cf98 1256 switch (state->split_start) {
3713b4e3
JB		 1257 case 0:
1258 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1259 rdev->wiphy.retry_short) ||
3713b4e3 1260 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1261 rdev->wiphy.retry_long) ||
3713b4e3 1262 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1263 rdev->wiphy.frag_threshold) ||
3713b4e3 1264 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1265 rdev->wiphy.rts_threshold) ||
3713b4e3 1266 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1267 rdev->wiphy.coverage_class) ||
3713b4e3 1268 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1269 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1270 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1271 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1272 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1273 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1274 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1275 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1276 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1277 rdev->wiphy.max_match_sets))
9360ffd1 1278 goto nla_put_failure;
3713b4e3 1279
1b8ec87a 1280 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1281 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1282 goto nla_put_failure;
1b8ec87a 1283 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1284 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1285 goto nla_put_failure;
1b8ec87a 1286 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1287 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1288 goto nla_put_failure;
1b8ec87a 1289 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1290 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1291 goto nla_put_failure;
1b8ec87a 1292 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1293 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1294 goto nla_put_failure;
1b8ec87a 1295 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1296 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1297 goto nla_put_failure;
86e8cf98
JB		 1298 state->split_start++;
1299 if (state->split)
3713b4e3
JB		 1300 break;
1301 case 1:
1302 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1303 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1304 rdev->wiphy.cipher_suites))
3713b4e3 1305 goto nla_put_failure;
4745fc09 1306
3713b4e3 1307 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1308 rdev->wiphy.max_num_pmkids))
3713b4e3 1309 goto nla_put_failure;
b23aa676 1310
1b8ec87a 1311 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1312 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1313 goto nla_put_failure;
b23aa676 1314
3713b4e3 1315 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1316 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1317 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1318 rdev->wiphy.available_antennas_rx))
9360ffd1 1319 goto nla_put_failure;
b23aa676 1320
1b8ec87a 1321 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1322 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1323 rdev->wiphy.probe_resp_offload))
3713b4e3 1324 goto nla_put_failure;
8fdc621d 1325
1b8ec87a
ZG		 1326 if ((rdev->wiphy.available_antennas_tx ||
1327 rdev->wiphy.available_antennas_rx) &&
1328 rdev->ops->get_antenna) {
3713b4e3
JB		 1329 u32 tx_ant = 0, rx_ant = 0;
1330 int res;
1b8ec87a 1331 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1332 if (!res) {
1333 if (nla_put_u32(msg,
1334 NL80211_ATTR_WIPHY_ANTENNA_TX,
1335 tx_ant) ||
1336 nla_put_u32(msg,
1337 NL80211_ATTR_WIPHY_ANTENNA_RX,
1338 rx_ant))
1339 goto nla_put_failure;
1340 }
1341 }
a293911d 1342
86e8cf98
JB		 1343 state->split_start++;
1344 if (state->split)
3713b4e3
JB		 1345 break;
1346 case 2:
1347 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1348 rdev->wiphy.interface_modes))
3713b4e3 1349 goto nla_put_failure;
86e8cf98
JB		 1350 state->split_start++;
1351 if (state->split)
3713b4e3
JB		 1352 break;
1353 case 3:
1354 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1355 if (!nl_bands)
1356 goto nla_put_failure;
f7ca38df 1357
86e8cf98
JB		 1358 for (band = state->band_start;
1359 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1360 struct ieee80211_supported_band *sband;
2e161f78 1361
1b8ec87a 1362 sband = rdev->wiphy.bands[band];
2e161f78 1363
3713b4e3
JB		 1364 if (!sband)
1365 continue;
1366
1367 nl_band = nla_nest_start(msg, band);
1368 if (!nl_band)
2e161f78 1369 goto nla_put_failure;
3713b4e3 1370
86e8cf98 1371 switch (state->chan_start) {
3713b4e3
JB		 1372 case 0:
1373 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1374 goto nla_put_failure;
86e8cf98
JB		 1375 state->chan_start++;
1376 if (state->split)
3713b4e3
JB		 1377 break;
1378 default:
1379 /* add frequencies */
1380 nl_freqs = nla_nest_start(
1381 msg, NL80211_BAND_ATTR_FREQS);
1382 if (!nl_freqs)
1383 goto nla_put_failure;
1384
86e8cf98 1385 for (i = state->chan_start - 1;
3713b4e3
JB		 1386 i < sband->n_channels;
1387 i++) {
1388 nl_freq = nla_nest_start(msg, i);
1389 if (!nl_freq)
1390 goto nla_put_failure;
1391
1392 chan = &sband->channels[i];
1393
86e8cf98
JB		 1394 if (nl80211_msg_put_channel(
1395 msg, chan,
1396 state->split))
3713b4e3
JB		 1397 goto nla_put_failure;
1398
1399 nla_nest_end(msg, nl_freq);
86e8cf98 1400 if (state->split)
3713b4e3
JB		 1401 break;
1402 }
1403 if (i < sband->n_channels)
86e8cf98 1404 state->chan_start = i + 2;
3713b4e3 1405 else
86e8cf98 1406 state->chan_start = 0;
3713b4e3
JB		 1407 nla_nest_end(msg, nl_freqs);
1408 }
1409
1410 nla_nest_end(msg, nl_band);
1411
86e8cf98 1412 if (state->split) {
3713b4e3 1413 /* start again here */
86e8cf98 1414 if (state->chan_start)
3713b4e3
JB		 1415 band--;
1416 break;
2e161f78 1417 }
2e161f78 1418 }
3713b4e3 1419 nla_nest_end(msg, nl_bands);
2e161f78 1420
3713b4e3 1421 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1422 state->band_start = band + 1;
3713b4e3 1423 else
86e8cf98 1424 state->band_start = 0;
74b70a4e 1425
3713b4e3 1426 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1427 if (state->band_start == 0 && state->chan_start == 0)
1428 state->split_start++;
1429 if (state->split)
3713b4e3
JB		 1430 break;
1431 case 4:
1432 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1433 if (!nl_cmds)
2e161f78
JB		 1434 goto nla_put_failure;
1435
3713b4e3
JB		 1436 i = 0;
1437#define CMD(op, n) \
1438 do { \
1b8ec87a 1439 if (rdev->ops->op) { \
3713b4e3
JB		 1440 i++; \
1441 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1442 goto nla_put_failure; \
1443 } \
1444 } while (0)
1445
1446 CMD(add_virtual_intf, NEW_INTERFACE);
1447 CMD(change_virtual_intf, SET_INTERFACE);
1448 CMD(add_key, NEW_KEY);
1449 CMD(start_ap, START_AP);
1450 CMD(add_station, NEW_STATION);
1451 CMD(add_mpath, NEW_MPATH);
1452 CMD(update_mesh_config, SET_MESH_CONFIG);
1453 CMD(change_bss, SET_BSS);
1454 CMD(auth, AUTHENTICATE);
1455 CMD(assoc, ASSOCIATE);
1456 CMD(deauth, DEAUTHENTICATE);
1457 CMD(disassoc, DISASSOCIATE);
1458 CMD(join_ibss, JOIN_IBSS);
1459 CMD(join_mesh, JOIN_MESH);
1460 CMD(set_pmksa, SET_PMKSA);
1461 CMD(del_pmksa, DEL_PMKSA);
1462 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1463 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1464 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1465 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1466 CMD(mgmt_tx, FRAME);
1467 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1468 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1469 i++;
1470 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1471 goto nla_put_failure;
2e161f78 1472 }
1b8ec87a
ZG		 1473 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1474 rdev->ops->join_mesh) {
3713b4e3
JB		 1475 i++;
1476 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1477 goto nla_put_failure;
1478 }
1479 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1480 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1481 CMD(tdls_mgmt, TDLS_MGMT);
1482 CMD(tdls_oper, TDLS_OPER);
1483 }
1b8ec87a 1484 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1485 CMD(sched_scan_start, START_SCHED_SCAN);
1486 CMD(probe_client, PROBE_CLIENT);
1487 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1488 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1489 i++;
1490 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1491 goto nla_put_failure;
1492 }
1493 CMD(start_p2p_device, START_P2P_DEVICE);
1494 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1495 if (state->split) {
5de17984
AS		 1496 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1497 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1498 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1499 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1500 }
fa9ffc74 1501 CMD(set_qos_map, SET_QOS_MAP);
2e161f78 1502
3713b4e3
JB		 1503#ifdef CONFIG_NL80211_TESTMODE
1504 CMD(testmode_cmd, TESTMODE);
1505#endif
ff1b6e69 1506
3713b4e3 1507#undef CMD
ff1b6e69 1508
1b8ec87a 1509 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1510 i++;
1511 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1512 goto nla_put_failure;
ff1b6e69
JB		 1513 }
1514
1b8ec87a 1515 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1516 i++;
1517 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1518 goto nla_put_failure;
1519 }
1520
1521 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1522 state->split_start++;
1523 if (state->split)
3713b4e3
JB		 1524 break;
1525 case 5:
1b8ec87a
ZG		 1526 if (rdev->ops->remain_on_channel &&
1527 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1528 nla_put_u32(msg,
1529 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1530 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1531 goto nla_put_failure;
1532
1b8ec87a 1533 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1534 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1535 goto nla_put_failure;
1536
1537 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1538 goto nla_put_failure;
86e8cf98
JB		 1539 state->split_start++;
1540 if (state->split)
3713b4e3
JB		 1541 break;
1542 case 6:
1543#ifdef CONFIG_PM
1b8ec87a 1544 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1545 goto nla_put_failure;
86e8cf98
JB		 1546 state->split_start++;
1547 if (state->split)
3713b4e3
JB		 1548 break;
1549#else
86e8cf98 1550 state->split_start++;
dfb89c56 1551#endif
3713b4e3
JB		 1552 case 7:
1553 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1554 rdev->wiphy.software_iftypes))
3713b4e3 1555 goto nla_put_failure;
ff1b6e69 1556
1b8ec87a 1557 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1558 state->split))
3713b4e3 1559 goto nla_put_failure;
7527a782 1560
86e8cf98
JB		 1561 state->split_start++;
1562 if (state->split)
3713b4e3
JB		 1563 break;
1564 case 8:
1b8ec87a 1565 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1566 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1567 rdev->wiphy.ap_sme_capa))
3713b4e3 1568 goto nla_put_failure;
7527a782 1569
1b8ec87a 1570 features = rdev->wiphy.features;
fe1abafd
JB		 1571 /*
1572 * We can only add the per-channel limit information if the
1573 * dump is split, otherwise it makes it too big. Therefore
1574 * only advertise it in that case.
1575 */
86e8cf98 1576 if (state->split)
fe1abafd
JB		 1577 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1578 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1579 goto nla_put_failure;
562a7480 1580
1b8ec87a 1581 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1582 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1583 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1584 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1585 goto nla_put_failure;
1f074bd8 1586
1b8ec87a
ZG		 1587 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1588 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1589 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1590 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1591 goto nla_put_failure;
7e7c8926 1592
3713b4e3
JB		 1593 /*
1594 * Any information below this point is only available to
1595 * applications that can deal with it being split. This
1596 * helps ensure that newly added capabilities don't break
1597 * older tools by overrunning their buffers.
1598 *
1599 * We still increment split_start so that in the split
1600 * case we'll continue with more data in the next round,
1601 * but break unconditionally so unsplit data stops here.
1602 */
86e8cf98 1603 state->split_start++;
3713b4e3
JB		 1604 break;
1605 case 9:
1b8ec87a 1606 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1607 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1608 rdev->wiphy.extended_capabilities_len,
1609 rdev->wiphy.extended_capabilities) ||
fe1abafd 1610 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1611 rdev->wiphy.extended_capabilities_len,
1612 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1613 goto nla_put_failure;
a50df0c4 1614
1b8ec87a 1615 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1616 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1617 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1618 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1619 goto nla_put_failure;
1620
be29b99a
AK		 1621 state->split_start++;
1622 break;
1623 case 10:
1b8ec87a 1624 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1625 goto nla_put_failure;
1626
1b8ec87a 1627 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1628 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1629 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1630 goto nla_put_failure;
b43504cf 1631
1b8ec87a 1632 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1633 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1634 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1635 goto nla_put_failure;
1636
ad7e718c
JB		 1637 state->split_start++;
1638 break;
1639 case 11:
1b8ec87a 1640 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1641 const struct nl80211_vendor_cmd_info *info;
1642 struct nlattr *nested;
1643
1644 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1645 if (!nested)
1646 goto nla_put_failure;
1647
1b8ec87a
ZG		 1648 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1649 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1650 if (nla_put(msg, i + 1, sizeof(*info), info))
1651 goto nla_put_failure;
1652 }
1653 nla_nest_end(msg, nested);
1654 }
1655
1b8ec87a 1656 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1657 const struct nl80211_vendor_cmd_info *info;
1658 struct nlattr *nested;
ad7e718c 1659
567ffc35
JB		 1660 nested = nla_nest_start(msg,
1661 NL80211_ATTR_VENDOR_EVENTS);
1662 if (!nested)
ad7e718c 1663 goto nla_put_failure;
567ffc35 1664
1b8ec87a
ZG		 1665 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1666 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1667 if (nla_put(msg, i + 1, sizeof(*info), info))
1668 goto nla_put_failure;
1669 }
1670 nla_nest_end(msg, nested);
1671 }
01e0daa4 1672
3713b4e3 1673 /* done */
86e8cf98 1674 state->split_start = 0;
3713b4e3
JB		 1675 break;
1676 }
55682965
JB		 1677 return genlmsg_end(msg, hdr);
1678
1679 nla_put_failure:
bc3ed28c
TG		 1680 genlmsg_cancel(msg, hdr);
1681 return -EMSGSIZE;
55682965
JB		 1682}
1683
86e8cf98
JB		 1684static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1685 struct netlink_callback *cb,
1686 struct nl80211_dump_wiphy_state *state)
1687{
1688 struct nlattr **tb = nl80211_fam.attrbuf;
1689 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1690 tb, nl80211_fam.maxattr, nl80211_policy);
1691 /* ignore parse errors for backward compatibility */
1692 if (ret)
1693 return 0;
1694
1695 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1696 if (tb[NL80211_ATTR_WIPHY])
1697 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1698 if (tb[NL80211_ATTR_WDEV])
1699 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1700 if (tb[NL80211_ATTR_IFINDEX]) {
1701 struct net_device *netdev;
1702 struct cfg80211_registered_device *rdev;
1703 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1704
7f2b8562 1705 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1706 if (!netdev)
1707 return -ENODEV;
1708 if (netdev->ieee80211_ptr) {
f26cbf40 1709 rdev = wiphy_to_rdev(
86e8cf98
JB		 1710 netdev->ieee80211_ptr->wiphy);
1711 state->filter_wiphy = rdev->wiphy_idx;
1712 }
86e8cf98
JB		 1713 }
1714
1715 return 0;
1716}
1717
55682965
JB		 1718static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1719{
645e77de 1720 int idx = 0, ret;
86e8cf98 1721 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1722 struct cfg80211_registered_device *rdev;
3a5a423b 1723
5fe231e8 1724 rtnl_lock();
86e8cf98
JB		 1725 if (!state) {
1726 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1727 if (!state) {
1728 rtnl_unlock();
86e8cf98 1729 return -ENOMEM;
3713b4e3 1730 }
86e8cf98
JB		 1731 state->filter_wiphy = -1;
1732 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1733 if (ret) {
1734 kfree(state);
1735 rtnl_unlock();
1736 return ret;
3713b4e3 1737 }
86e8cf98 1738 cb->args[0] = (long)state;
3713b4e3
JB		 1739 }
1740
1b8ec87a
ZG		 1741 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1742 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1743 continue;
86e8cf98 1744 if (++idx <= state->start)
55682965 1745 continue;
86e8cf98 1746 if (state->filter_wiphy != -1 &&
1b8ec87a 1747 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1748 continue;
1749 /* attempt to fit multiple wiphy data chunks into the skb */
1750 do {
1b8ec87a 1751 ret = nl80211_send_wiphy(rdev, skb,
3713b4e3
JB		 1752 NETLINK_CB(cb->skb).portid,
1753 cb->nlh->nlmsg_seq,
86e8cf98 1754 NLM_F_MULTI, state);
3713b4e3
JB		 1755 if (ret < 0) {
1756 /*
1757 * If sending the wiphy data didn't fit (ENOBUFS
1758 * or EMSGSIZE returned), this SKB is still
1759 * empty (so it's not too big because another
1760 * wiphy dataset is already in the skb) and
1761 * we've not tried to adjust the dump allocation
1762 * yet ... then adjust the alloc size to be
1763 * bigger, and return 1 but with the empty skb.
1764 * This results in an empty message being RX'ed
1765 * in userspace, but that is ignored.
1766 *
1767 * We can then retry with the larger buffer.
1768 */
1769 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1770 !skb->len && !state->split &&
3713b4e3
JB		 1771 cb->min_dump_alloc < 4096) {
1772 cb->min_dump_alloc = 4096;
f12cb289 1773 state->split_start = 0;
d98cae64 1774 rtnl_unlock();
3713b4e3
JB		 1775 return 1;
1776 }
1777 idx--;
1778 break;
645e77de 1779 }
86e8cf98 1780 } while (state->split_start > 0);
3713b4e3 1781 break;
55682965 1782 }
5fe231e8 1783 rtnl_unlock();
55682965 1784
86e8cf98 1785 state->start = idx;
55682965
JB		 1786
1787 return skb->len;
1788}
1789
86e8cf98
JB		 1790static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1791{
1792 kfree((void *)cb->args[0]);
1793 return 0;
1794}
1795
55682965
JB		 1796static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1797{
1798 struct sk_buff *msg;
1b8ec87a 1799 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1800 struct nl80211_dump_wiphy_state state = {};
55682965 1801
645e77de 1802 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1803 if (!msg)
4c476991 1804 return -ENOMEM;
55682965 1805
1b8ec87a 1806 if (nl80211_send_wiphy(rdev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1807 &state) < 0) {
4c476991
JB		 1808 nlmsg_free(msg);
1809 return -ENOBUFS;
1810 }
55682965 1811
134e6375 1812 return genlmsg_reply(msg, info);
55682965
JB		 1813}
1814
31888487
JM		 1815static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1816 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1817 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1818 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1819 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1820 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1821};
1822
1823static int parse_txq_params(struct nlattr *tb[],
1824 struct ieee80211_txq_params *txq_params)
1825{
a3304b0a 1826 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1827 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1828 !tb[NL80211_TXQ_ATTR_AIFS])
1829 return -EINVAL;
1830
a3304b0a 1831 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1832 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1833 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1834 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1835 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1836
a3304b0a
JB		 1837 if (txq_params->ac >= NL80211_NUM_ACS)
1838 return -EINVAL;
1839
31888487
JM		 1840 return 0;
1841}
1842
f444de05
JB		 1843static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1844{
1845 /*
cc1d2806
JB		 1846 * You can only set the channel explicitly for WDS interfaces,
1847 * all others have their channel managed via their respective
1848 * "establish a connection" command (connect, join, ...)
1849 *
1850 * For AP/GO and mesh mode, the channel can be set with the
1851 * channel userspace API, but is only stored and passed to the
1852 * low-level driver when the AP starts or the mesh is joined.
1853 * This is for backward compatibility, userspace can also give
1854 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1855 *
1856 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1857 * whatever else is going on, so they have their own special
1858 * operation to set the monitor channel if possible.
f444de05
JB		 1859 */
1860 return !wdev ||
1861 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1862 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1863 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1864 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1865}
1866
683b6d3b
JB		 1867static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1868 struct genl_info *info,
1869 struct cfg80211_chan_def *chandef)
1870{
dbeca2ea 1871 u32 control_freq;
683b6d3b
JB		 1872
1873 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1874 return -EINVAL;
1875
1876 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1877
1878 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1879 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1880 chandef->center_freq1 = control_freq;
1881 chandef->center_freq2 = 0;
683b6d3b
JB		 1882
1883 /* Primary channel not allowed */
1884 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1885 return -EINVAL;
1886
3d9d1d66
JB		 1887 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1888 enum nl80211_channel_type chantype;
1889
1890 chantype = nla_get_u32(
1891 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1892
1893 switch (chantype) {
1894 case NL80211_CHAN_NO_HT:
1895 case NL80211_CHAN_HT20:
1896 case NL80211_CHAN_HT40PLUS:
1897 case NL80211_CHAN_HT40MINUS:
1898 cfg80211_chandef_create(chandef, chandef->chan,
1899 chantype);
1900 break;
1901 default:
1902 return -EINVAL;
1903 }
1904 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1905 chandef->width =
1906 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1907 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1908 chandef->center_freq1 =
1909 nla_get_u32(
1910 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1911 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1912 chandef->center_freq2 =
1913 nla_get_u32(
1914 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1915 }
1916
9f5e8f6e 1917 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1918 return -EINVAL;
1919
9f5e8f6e
JB		 1920 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1921 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1922 return -EINVAL;
1923
2f301ab2
SW		 1924 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1925 chandef->width == NL80211_CHAN_WIDTH_10) &&
1926 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1927 return -EINVAL;
1928
683b6d3b
JB		 1929 return 0;
1930}
1931
f444de05 1932static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1933 struct net_device *dev,
f444de05
JB		 1934 struct genl_info *info)
1935{
683b6d3b 1936 struct cfg80211_chan_def chandef;
f444de05 1937 int result;
e8c9bd5b 1938 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1939 struct wireless_dev *wdev = NULL;
e8c9bd5b 1940
e16821bc
JM		 1941 if (dev)
1942 wdev = dev->ieee80211_ptr;
f444de05
JB		 1943 if (!nl80211_can_set_dev_channel(wdev))
1944 return -EOPNOTSUPP;
e16821bc
JM		 1945 if (wdev)
1946 iftype = wdev->iftype;
f444de05 1947
683b6d3b
JB		 1948 result = nl80211_parse_chandef(rdev, info, &chandef);
1949 if (result)
1950 return result;
f444de05 1951
e8c9bd5b 1952 switch (iftype) {
aa430da4
JB		 1953 case NL80211_IFTYPE_AP:
1954 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1955 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1956 result = -EINVAL;
1957 break;
1958 }
e16821bc
JM		 1959 if (wdev->beacon_interval) {
1960 if (!dev || !rdev->ops->set_ap_chanwidth ||
1961 !(rdev->wiphy.features &
1962 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1963 result = -EBUSY;
1964 break;
1965 }
1966
1967 /* Only allow dynamic channel width changes */
1968 if (chandef.chan != wdev->preset_chandef.chan) {
1969 result = -EBUSY;
1970 break;
1971 }
1972 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1973 if (result)
1974 break;
1975 }
683b6d3b 1976 wdev->preset_chandef = chandef;
aa430da4
JB		 1977 result = 0;
1978 break;
cc1d2806 1979 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1980 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1981 break;
e8c9bd5b 1982 case NL80211_IFTYPE_MONITOR:
683b6d3b 1983 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1984 break;
aa430da4 1985 default:
e8c9bd5b 1986 result = -EINVAL;
f444de05 1987 }
f444de05
JB		 1988
1989 return result;
1990}
1991
1992static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1993{
4c476991
JB		 1994 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1995 struct net_device *netdev = info->user_ptr[1];
f444de05 1996
e16821bc 1997 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 1998}
1999
e8347eba
BJ		 2000static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2001{
43b19952
JB		 2002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2003 struct net_device *dev = info->user_ptr[1];
2004 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2005 const u8 *bssid;
e8347eba
BJ		 2006
2007 if (!info->attrs[NL80211_ATTR_MAC])
2008 return -EINVAL;
2009
43b19952
JB		 2010 if (netif_running(dev))
2011 return -EBUSY;
e8347eba 2012
43b19952
JB		 2013 if (!rdev->ops->set_wds_peer)
2014 return -EOPNOTSUPP;
e8347eba 2015
43b19952
JB		 2016 if (wdev->iftype != NL80211_IFTYPE_WDS)
2017 return -EOPNOTSUPP;
e8347eba
BJ		 2018
2019 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2020 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2021}
2022
2023
55682965
JB		 2024static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2025{
2026 struct cfg80211_registered_device *rdev;
f444de05
JB		 2027 struct net_device *netdev = NULL;
2028 struct wireless_dev *wdev;
a1e567c8 2029 int result = 0, rem_txq_params = 0;
31888487 2030 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2031 u32 changed;
2032 u8 retry_short = 0, retry_long = 0;
2033 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2034 u8 coverage_class = 0;
55682965 2035
5fe231e8
JB		 2036 ASSERT_RTNL();
2037
f444de05
JB		 2038 /*
2039 * Try to find the wiphy and netdev. Normally this
2040 * function shouldn't need the netdev, but this is
2041 * done for backward compatibility -- previously
2042 * setting the channel was done per wiphy, but now
2043 * it is per netdev. Previous userland like hostapd
2044 * also passed a netdev to set_wiphy, so that it is
2045 * possible to let that go to the right netdev!
2046 */
4bbf4d56 2047
f444de05
JB		 2048 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2049 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2050
7f2b8562 2051 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2052 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2053 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2054 else
f444de05 2055 netdev = NULL;
4bbf4d56
JB		 2056 }
2057
f444de05 2058 if (!netdev) {
878d9ec7
JB		 2059 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2060 info->attrs);
5fe231e8 2061 if (IS_ERR(rdev))
4c476991 2062 return PTR_ERR(rdev);
f444de05
JB		 2063 wdev = NULL;
2064 netdev = NULL;
2065 result = 0;
71fe96bf 2066 } else
f444de05 2067 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2068
2069 /*
2070 * end workaround code, by now the rdev is available
2071 * and locked, and wdev may or may not be NULL.
2072 */
4bbf4d56
JB		 2073
2074 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2075 result = cfg80211_dev_rename(
2076 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2077
4bbf4d56 2078 if (result)
7f2b8562 2079 return result;
31888487
JM		 2080
2081 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2082 struct ieee80211_txq_params txq_params;
2083 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2084
7f2b8562
YX		 2085 if (!rdev->ops->set_txq_params)
2086 return -EOPNOTSUPP;
31888487 2087
7f2b8562
YX		 2088 if (!netdev)
2089 return -EINVAL;
f70f01c2 2090
133a3ff2 2091 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2092 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2093 return -EINVAL;
133a3ff2 2094
7f2b8562
YX		 2095 if (!netif_running(netdev))
2096 return -ENETDOWN;
2b5f8b0b 2097
31888487
JM		 2098 nla_for_each_nested(nl_txq_params,
2099 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2100 rem_txq_params) {
ae811e21
JB		 2101 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2102 nla_data(nl_txq_params),
2103 nla_len(nl_txq_params),
2104 txq_params_policy);
2105 if (result)
2106 return result;
31888487
JM		 2107 result = parse_txq_params(tb, &txq_params);
2108 if (result)
7f2b8562 2109 return result;
31888487 2110
e35e4d28
HG		 2111 result = rdev_set_txq_params(rdev, netdev,
2112 &txq_params);
31888487 2113 if (result)
7f2b8562 2114 return result;
31888487
JM		 2115 }
2116 }
55682965 2117
72bdcf34 2118 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2119 result = __nl80211_set_channel(
2120 rdev,
2121 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2122 info);
72bdcf34 2123 if (result)
7f2b8562 2124 return result;
72bdcf34
JM		 2125 }
2126
98d2ff8b 2127 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2128 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2129 enum nl80211_tx_power_setting type;
2130 int idx, mbm = 0;
2131
c8442118
JB		 2132 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2133 txp_wdev = NULL;
2134
7f2b8562
YX		 2135 if (!rdev->ops->set_tx_power)
2136 return -EOPNOTSUPP;
98d2ff8b
JO		 2137
2138 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2139 type = nla_get_u32(info->attrs[idx]);
2140
2141 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2142 (type != NL80211_TX_POWER_AUTOMATIC))
2143 return -EINVAL;
98d2ff8b
JO		 2144
2145 if (type != NL80211_TX_POWER_AUTOMATIC) {
2146 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2147 mbm = nla_get_u32(info->attrs[idx]);
2148 }
2149
c8442118 2150 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2151 if (result)
7f2b8562 2152 return result;
98d2ff8b
JO		 2153 }
2154
afe0cbf8
BR		 2155 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2156 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2157 u32 tx_ant, rx_ant;
7f531e03
BR		 2158 if ((!rdev->wiphy.available_antennas_tx &&
2159 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2160 !rdev->ops->set_antenna)
2161 return -EOPNOTSUPP;
afe0cbf8
BR		 2162
2163 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2164 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2165
a7ffac95 2166 /* reject antenna configurations which don't match the
7f531e03
BR		 2167 * available antenna masks, except for the "all" mask */
2168 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2169 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2170 return -EINVAL;
a7ffac95 2171
7f531e03
BR		 2172 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2173 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2174
e35e4d28 2175 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2176 if (result)
7f2b8562 2177 return result;
afe0cbf8
BR		 2178 }
2179
b9a5f8ca
JM		 2180 changed = 0;
2181
2182 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2183 retry_short = nla_get_u8(
2184 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2185 if (retry_short == 0)
2186 return -EINVAL;
2187
b9a5f8ca
JM		 2188 changed |= WIPHY_PARAM_RETRY_SHORT;
2189 }
2190
2191 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2192 retry_long = nla_get_u8(
2193 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2194 if (retry_long == 0)
2195 return -EINVAL;
2196
b9a5f8ca
JM		 2197 changed |= WIPHY_PARAM_RETRY_LONG;
2198 }
2199
2200 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2201 frag_threshold = nla_get_u32(
2202 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2203 if (frag_threshold < 256)
2204 return -EINVAL;
2205
b9a5f8ca
JM		 2206 if (frag_threshold != (u32) -1) {
2207 /*
2208 * Fragments (apart from the last one) are required to
2209 * have even length. Make the fragmentation code
2210 * simpler by stripping LSB should someone try to use
2211 * odd threshold value.
2212 */
2213 frag_threshold &= ~0x1;
2214 }
2215 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2216 }
2217
2218 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2219 rts_threshold = nla_get_u32(
2220 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2221 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2222 }
2223
81077e82
LT		 2224 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2225 coverage_class = nla_get_u8(
2226 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2227 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2228 }
2229
b9a5f8ca
JM		 2230 if (changed) {
2231 u8 old_retry_short, old_retry_long;
2232 u32 old_frag_threshold, old_rts_threshold;
81077e82 2233 u8 old_coverage_class;
b9a5f8ca 2234
7f2b8562
YX		 2235 if (!rdev->ops->set_wiphy_params)
2236 return -EOPNOTSUPP;
b9a5f8ca
JM		 2237
2238 old_retry_short = rdev->wiphy.retry_short;
2239 old_retry_long = rdev->wiphy.retry_long;
2240 old_frag_threshold = rdev->wiphy.frag_threshold;
2241 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2242 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2243
2244 if (changed & WIPHY_PARAM_RETRY_SHORT)
2245 rdev->wiphy.retry_short = retry_short;
2246 if (changed & WIPHY_PARAM_RETRY_LONG)
2247 rdev->wiphy.retry_long = retry_long;
2248 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2249 rdev->wiphy.frag_threshold = frag_threshold;
2250 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2251 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2252 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2253 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2254
e35e4d28 2255 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2256 if (result) {
2257 rdev->wiphy.retry_short = old_retry_short;
2258 rdev->wiphy.retry_long = old_retry_long;
2259 rdev->wiphy.frag_threshold = old_frag_threshold;
2260 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2261 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2262 }
2263 }
7f2b8562 2264 return 0;
55682965
JB		 2265}
2266
71bbc994
JB		 2267static inline u64 wdev_id(struct wireless_dev *wdev)
2268{
2269 return (u64)wdev->identifier |
f26cbf40 2270 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2271}
55682965 2272
683b6d3b 2273static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2274 const struct cfg80211_chan_def *chandef)
683b6d3b 2275{
9f5e8f6e 2276 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2277
683b6d3b
JB		 2278 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2279 chandef->chan->center_freq))
2280 return -ENOBUFS;
3d9d1d66
JB		 2281 switch (chandef->width) {
2282 case NL80211_CHAN_WIDTH_20_NOHT:
2283 case NL80211_CHAN_WIDTH_20:
2284 case NL80211_CHAN_WIDTH_40:
2285 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2286 cfg80211_get_chandef_type(chandef)))
2287 return -ENOBUFS;
2288 break;
2289 default:
2290 break;
2291 }
2292 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2293 return -ENOBUFS;
2294 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2295 return -ENOBUFS;
2296 if (chandef->center_freq2 &&
2297 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2298 return -ENOBUFS;
2299 return 0;
2300}
2301
15e47304 2302static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2303 struct cfg80211_registered_device *rdev,
72fb2abc 2304 struct wireless_dev *wdev)
55682965 2305{
72fb2abc 2306 struct net_device *dev = wdev->netdev;
55682965
JB		 2307 void *hdr;
2308
15e47304 2309 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2310 if (!hdr)
2311 return -1;
2312
72fb2abc
JB		 2313 if (dev &&
2314 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2315 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2316 goto nla_put_failure;
2317
2318 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2319 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2320 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2321 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2322 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2323 rdev->devlist_generation ^
2324 (cfg80211_rdev_list_generation << 2)))
2325 goto nla_put_failure;
f5ea9120 2326
5b7ccaf3 2327 if (rdev->ops->get_channel) {
683b6d3b
JB		 2328 int ret;
2329 struct cfg80211_chan_def chandef;
2330
2331 ret = rdev_get_channel(rdev, wdev, &chandef);
2332 if (ret == 0) {
2333 if (nl80211_send_chandef(msg, &chandef))
2334 goto nla_put_failure;
2335 }
d91df0e3
PF		 2336 }
2337
b84e7a05
AQ		 2338 if (wdev->ssid_len) {
2339 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2340 goto nla_put_failure;
2341 }
2342
55682965
JB		 2343 return genlmsg_end(msg, hdr);
2344
2345 nla_put_failure:
bc3ed28c
TG		 2346 genlmsg_cancel(msg, hdr);
2347 return -EMSGSIZE;
55682965
JB		 2348}
2349
2350static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2351{
2352 int wp_idx = 0;
2353 int if_idx = 0;
2354 int wp_start = cb->args[0];
2355 int if_start = cb->args[1];
f5ea9120 2356 struct cfg80211_registered_device *rdev;
55682965
JB		 2357 struct wireless_dev *wdev;
2358
5fe231e8 2359 rtnl_lock();
f5ea9120
JB		 2360 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2361 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2362 continue;
bba95fef
JB		 2363 if (wp_idx < wp_start) {
2364 wp_idx++;
55682965 2365 continue;
bba95fef 2366 }
55682965
JB		 2367 if_idx = 0;
2368
89a54e48 2369 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2370 if (if_idx < if_start) {
2371 if_idx++;
55682965 2372 continue;
bba95fef 2373 }
15e47304 2374 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2375 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2376 rdev, wdev) < 0) {
bba95fef
JB		 2377 goto out;
2378 }
2379 if_idx++;
55682965 2380 }
bba95fef
JB		 2381
2382 wp_idx++;
55682965 2383 }
bba95fef 2384 out:
5fe231e8 2385 rtnl_unlock();
55682965
JB		 2386
2387 cb->args[0] = wp_idx;
2388 cb->args[1] = if_idx;
2389
2390 return skb->len;
2391}
2392
2393static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2394{
2395 struct sk_buff *msg;
1b8ec87a 2396 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2397 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2398
fd2120ca 2399 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2400 if (!msg)
4c476991 2401 return -ENOMEM;
55682965 2402
15e47304 2403 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2404 rdev, wdev) < 0) {
4c476991
JB		 2405 nlmsg_free(msg);
2406 return -ENOBUFS;
2407 }
55682965 2408
134e6375 2409 return genlmsg_reply(msg, info);
55682965
JB		 2410}
2411
66f7ac50
MW		 2412static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2413 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2414 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2415 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2416 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2417 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2418 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2419};
2420
2421static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2422{
2423 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2424 int flag;
2425
2426 *mntrflags = 0;
2427
2428 if (!nla)
2429 return -EINVAL;
2430
2431 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2432 nla, mntr_flags_policy))
2433 return -EINVAL;
2434
2435 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2436 if (flags[flag])
2437 *mntrflags |= (1<<flag);
2438
2439 return 0;
2440}
2441
9bc383de 2442static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2443 struct net_device *netdev, u8 use_4addr,
2444 enum nl80211_iftype iftype)
9bc383de 2445{
ad4bb6f8 2446 if (!use_4addr) {
f350a0a8 2447 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2448 return -EBUSY;
9bc383de 2449 return 0;
ad4bb6f8 2450 }
9bc383de
JB		 2451
2452 switch (iftype) {
2453 case NL80211_IFTYPE_AP_VLAN:
2454 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2455 return 0;
2456 break;
2457 case NL80211_IFTYPE_STATION:
2458 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2459 return 0;
2460 break;
2461 default:
2462 break;
2463 }
2464
2465 return -EOPNOTSUPP;
2466}
2467
55682965
JB		 2468static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2469{
4c476991 2470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2471 struct vif_params params;
e36d56b6 2472 int err;
04a773ad 2473 enum nl80211_iftype otype, ntype;
4c476991 2474 struct net_device *dev = info->user_ptr[1];
92ffe055 2475 u32 _flags, *flags = NULL;
ac7f9cfa 2476 bool change = false;
55682965 2477
2ec600d6
LCC		 2478 memset(&params, 0, sizeof(params));
2479
04a773ad 2480 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2481
723b038d 2482 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2483 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2484 if (otype != ntype)
ac7f9cfa 2485 change = true;
4c476991
JB		 2486 if (ntype > NL80211_IFTYPE_MAX)
2487 return -EINVAL;
723b038d
JB		 2488 }
2489
92ffe055 2490 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2491 struct wireless_dev *wdev = dev->ieee80211_ptr;
2492
4c476991
JB		 2493 if (ntype != NL80211_IFTYPE_MESH_POINT)
2494 return -EINVAL;
29cbe68c
JB		 2495 if (netif_running(dev))
2496 return -EBUSY;
2497
2498 wdev_lock(wdev);
2499 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2500 IEEE80211_MAX_MESH_ID_LEN);
2501 wdev->mesh_id_up_len =
2502 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2503 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2504 wdev->mesh_id_up_len);
2505 wdev_unlock(wdev);
2ec600d6
LCC		 2506 }
2507
8b787643
FF		 2508 if (info->attrs[NL80211_ATTR_4ADDR]) {
2509 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2510 change = true;
ad4bb6f8 2511 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2512 if (err)
4c476991 2513 return err;
8b787643
FF		 2514 } else {
2515 params.use_4addr = -1;
2516 }
2517
92ffe055 2518 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2519 if (ntype != NL80211_IFTYPE_MONITOR)
2520 return -EINVAL;
92ffe055
JB		 2521 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2522 &_flags);
ac7f9cfa 2523 if (err)
4c476991 2524 return err;
ac7f9cfa
JB		 2525
2526 flags = &_flags;
2527 change = true;
92ffe055 2528 }
3b85875a 2529
18003297 2530 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2531 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2532 return -EOPNOTSUPP;
2533
ac7f9cfa 2534 if (change)
3d54d255 2535 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2536 else
2537 err = 0;
60719ffd 2538
9bc383de
JB		 2539 if (!err && params.use_4addr != -1)
2540 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2541
55682965
JB		 2542 return err;
2543}
2544
2545static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2546{
4c476991 2547 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2548 struct vif_params params;
84efbb84 2549 struct wireless_dev *wdev;
1c90f9d4 2550 struct sk_buff *msg;
55682965
JB		 2551 int err;
2552 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2553 u32 flags;
55682965 2554
78f22b6a
JB		 2555 /* to avoid failing a new interface creation due to pending removal */
2556 cfg80211_destroy_ifaces(rdev);
2557
2ec600d6
LCC		 2558 memset(&params, 0, sizeof(params));
2559
55682965
JB		 2560 if (!info->attrs[NL80211_ATTR_IFNAME])
2561 return -EINVAL;
2562
2563 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2564 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2565 if (type > NL80211_IFTYPE_MAX)
2566 return -EINVAL;
2567 }
2568
79c97e97 2569 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2570 !(rdev->wiphy.interface_modes & (1 << type)))
2571 return -EOPNOTSUPP;
55682965 2572
1c18f145
AS		 2573 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2574 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2575 ETH_ALEN);
2576 if (!is_valid_ether_addr(params.macaddr))
2577 return -EADDRNOTAVAIL;
2578 }
2579
9bc383de 2580 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2581 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2582 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2583 if (err)
4c476991 2584 return err;
9bc383de 2585 }
8b787643 2586
1c90f9d4
JB		 2587 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2588 if (!msg)
2589 return -ENOMEM;
2590
66f7ac50
MW		 2591 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2592 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2593 &flags);
e057d3c3 2594
18003297 2595 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2596 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2597 return -EOPNOTSUPP;
2598
e35e4d28
HG		 2599 wdev = rdev_add_virtual_intf(rdev,
2600 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2601 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2602 if (IS_ERR(wdev)) {
2603 nlmsg_free(msg);
84efbb84 2604 return PTR_ERR(wdev);
1c90f9d4 2605 }
2ec600d6 2606
78f22b6a
JB		 2607 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2608 wdev->owner_nlportid = info->snd_portid;
2609
98104fde
JB		 2610 switch (type) {
2611 case NL80211_IFTYPE_MESH_POINT:
2612 if (!info->attrs[NL80211_ATTR_MESH_ID])
2613 break;
29cbe68c
JB		 2614 wdev_lock(wdev);
2615 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2616 IEEE80211_MAX_MESH_ID_LEN);
2617 wdev->mesh_id_up_len =
2618 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2619 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2620 wdev->mesh_id_up_len);
2621 wdev_unlock(wdev);
98104fde
JB		 2622 break;
2623 case NL80211_IFTYPE_P2P_DEVICE:
2624 /*
2625 * P2P Device doesn't have a netdev, so doesn't go
2626 * through the netdev notifier and must be added here
2627 */
2628 mutex_init(&wdev->mtx);
2629 INIT_LIST_HEAD(&wdev->event_list);
2630 spin_lock_init(&wdev->event_lock);
2631 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2632 spin_lock_init(&wdev->mgmt_registrations_lock);
2633
98104fde
JB		 2634 wdev->identifier = ++rdev->wdev_id;
2635 list_add_rcu(&wdev->list, &rdev->wdev_list);
2636 rdev->devlist_generation++;
98104fde
JB		 2637 break;
2638 default:
2639 break;
29cbe68c
JB		 2640 }
2641
15e47304 2642 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2643 rdev, wdev) < 0) {
2644 nlmsg_free(msg);
2645 return -ENOBUFS;
2646 }
2647
2648 return genlmsg_reply(msg, info);
55682965
JB		 2649}
2650
2651static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2652{
4c476991 2653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2654 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2655
4c476991
JB		 2656 if (!rdev->ops->del_virtual_intf)
2657 return -EOPNOTSUPP;
55682965 2658
84efbb84
JB		 2659 /*
2660 * If we remove a wireless device without a netdev then clear
2661 * user_ptr[1] so that nl80211_post_doit won't dereference it
2662 * to check if it needs to do dev_put(). Otherwise it crashes
2663 * since the wdev has been freed, unlike with a netdev where
2664 * we need the dev_put() for the netdev to really be freed.
2665 */
2666 if (!wdev->netdev)
2667 info->user_ptr[1] = NULL;
2668
e35e4d28 2669 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2670}
2671
1d9d9213
SW		 2672static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2673{
2674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2675 struct net_device *dev = info->user_ptr[1];
2676 u16 noack_map;
2677
2678 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2679 return -EINVAL;
2680
2681 if (!rdev->ops->set_noack_map)
2682 return -EOPNOTSUPP;
2683
2684 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2685
e35e4d28 2686 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2687}
2688
41ade00f
JB		 2689struct get_key_cookie {
2690 struct sk_buff *msg;
2691 int error;
b9454e83 2692 int idx;
41ade00f
JB		 2693};
2694
2695static void get_key_callback(void *c, struct key_params *params)
2696{
b9454e83 2697 struct nlattr *key;
41ade00f
JB		 2698 struct get_key_cookie *cookie = c;
2699
9360ffd1
DM		 2700 if ((params->key &&
2701 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2702 params->key_len, params->key)) ||
2703 (params->seq &&
2704 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2705 params->seq_len, params->seq)) ||
2706 (params->cipher &&
2707 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2708 params->cipher)))
2709 goto nla_put_failure;
41ade00f 2710
b9454e83
JB		 2711 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2712 if (!key)
2713 goto nla_put_failure;
2714
9360ffd1
DM		 2715 if ((params->key &&
2716 nla_put(cookie->msg, NL80211_KEY_DATA,
2717 params->key_len, params->key)) ||
2718 (params->seq &&
2719 nla_put(cookie->msg, NL80211_KEY_SEQ,
2720 params->seq_len, params->seq)) ||
2721 (params->cipher &&
2722 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2723 params->cipher)))
2724 goto nla_put_failure;
b9454e83 2725
9360ffd1
DM		 2726 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2727 goto nla_put_failure;
b9454e83
JB		 2728
2729 nla_nest_end(cookie->msg, key);
2730
41ade00f
JB		 2731 return;
2732 nla_put_failure:
2733 cookie->error = 1;
2734}
2735
2736static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2737{
4c476991 2738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2739 int err;
4c476991 2740 struct net_device *dev = info->user_ptr[1];
41ade00f 2741 u8 key_idx = 0;
e31b8213
JB		 2742 const u8 *mac_addr = NULL;
2743 bool pairwise;
41ade00f
JB		 2744 struct get_key_cookie cookie = {
2745 .error = 0,
2746 };
2747 void *hdr;
2748 struct sk_buff *msg;
2749
2750 if (info->attrs[NL80211_ATTR_KEY_IDX])
2751 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2752
3cfcf6ac 2753 if (key_idx > 5)
41ade00f
JB		 2754 return -EINVAL;
2755
2756 if (info->attrs[NL80211_ATTR_MAC])
2757 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2758
e31b8213
JB		 2759 pairwise = !!mac_addr;
2760 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2761 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2762 if (kt >= NUM_NL80211_KEYTYPES)
2763 return -EINVAL;
2764 if (kt != NL80211_KEYTYPE_GROUP &&
2765 kt != NL80211_KEYTYPE_PAIRWISE)
2766 return -EINVAL;
2767 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2768 }
2769
4c476991
JB		 2770 if (!rdev->ops->get_key)
2771 return -EOPNOTSUPP;
41ade00f 2772
fd2120ca 2773 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2774 if (!msg)
2775 return -ENOMEM;
41ade00f 2776
15e47304 2777 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2778 NL80211_CMD_NEW_KEY);
cb35fba3 2779 if (!hdr)
9fe271af 2780 goto nla_put_failure;
41ade00f
JB		 2781
2782 cookie.msg = msg;
b9454e83 2783 cookie.idx = key_idx;
41ade00f 2784
9360ffd1
DM		 2785 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2786 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2787 goto nla_put_failure;
2788 if (mac_addr &&
2789 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2790 goto nla_put_failure;
41ade00f 2791
e31b8213
JB		 2792 if (pairwise && mac_addr &&
2793 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2794 return -ENOENT;
2795
e35e4d28
HG		 2796 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2797 get_key_callback);
41ade00f
JB		 2798
2799 if (err)
6c95e2a2 2800 goto free_msg;
41ade00f
JB		 2801
2802 if (cookie.error)
2803 goto nla_put_failure;
2804
2805 genlmsg_end(msg, hdr);
4c476991 2806 return genlmsg_reply(msg, info);
41ade00f
JB		 2807
2808 nla_put_failure:
2809 err = -ENOBUFS;
6c95e2a2 2810 free_msg:
41ade00f 2811 nlmsg_free(msg);
41ade00f
JB		 2812 return err;
2813}
2814
2815static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2816{
4c476991 2817 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2818 struct key_parse key;
41ade00f 2819 int err;
4c476991 2820 struct net_device *dev = info->user_ptr[1];
41ade00f 2821
b9454e83
JB		 2822 err = nl80211_parse_key(info, &key);
2823 if (err)
2824 return err;
41ade00f 2825
b9454e83 2826 if (key.idx < 0)
41ade00f
JB		 2827 return -EINVAL;
2828
b9454e83
JB		 2829 /* only support setting default key */
2830 if (!key.def && !key.defmgmt)
41ade00f
JB		 2831 return -EINVAL;
2832
dbd2fd65 2833 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2834
dbd2fd65
JB		 2835 if (key.def) {
2836 if (!rdev->ops->set_default_key) {
2837 err = -EOPNOTSUPP;
2838 goto out;
2839 }
41ade00f 2840
dbd2fd65
JB		 2841 err = nl80211_key_allowed(dev->ieee80211_ptr);
2842 if (err)
2843 goto out;
2844
e35e4d28 2845 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2846 key.def_uni, key.def_multi);
2847
2848 if (err)
2849 goto out;
fffd0934 2850
3d23e349 2851#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2852 dev->ieee80211_ptr->wext.default_key = key.idx;
2853#endif
2854 } else {
2855 if (key.def_uni || !key.def_multi) {
2856 err = -EINVAL;
2857 goto out;
2858 }
2859
2860 if (!rdev->ops->set_default_mgmt_key) {
2861 err = -EOPNOTSUPP;
2862 goto out;
2863 }
2864
2865 err = nl80211_key_allowed(dev->ieee80211_ptr);
2866 if (err)
2867 goto out;
2868
e35e4d28 2869 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2870 if (err)
2871 goto out;
2872
2873#ifdef CONFIG_CFG80211_WEXT
2874 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2875#endif
dbd2fd65
JB		 2876 }
2877
2878 out:
fffd0934 2879 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2880
41ade00f
JB		 2881 return err;
2882}
2883
2884static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2885{
4c476991 2886 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2887 int err;
4c476991 2888 struct net_device *dev = info->user_ptr[1];
b9454e83 2889 struct key_parse key;
e31b8213 2890 const u8 *mac_addr = NULL;
41ade00f 2891
b9454e83
JB		 2892 err = nl80211_parse_key(info, &key);
2893 if (err)
2894 return err;
41ade00f 2895
b9454e83 2896 if (!key.p.key)
41ade00f
JB		 2897 return -EINVAL;
2898
41ade00f
JB		 2899 if (info->attrs[NL80211_ATTR_MAC])
2900 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2901
e31b8213
JB		 2902 if (key.type == -1) {
2903 if (mac_addr)
2904 key.type = NL80211_KEYTYPE_PAIRWISE;
2905 else
2906 key.type = NL80211_KEYTYPE_GROUP;
2907 }
2908
2909 /* for now */
2910 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2911 key.type != NL80211_KEYTYPE_GROUP)
2912 return -EINVAL;
2913
4c476991
JB		 2914 if (!rdev->ops->add_key)
2915 return -EOPNOTSUPP;
25e47c18 2916
e31b8213
JB		 2917 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2918 key.type == NL80211_KEYTYPE_PAIRWISE,
2919 mac_addr))
4c476991 2920 return -EINVAL;
41ade00f 2921
fffd0934
JB		 2922 wdev_lock(dev->ieee80211_ptr);
2923 err = nl80211_key_allowed(dev->ieee80211_ptr);
2924 if (!err)
e35e4d28
HG		 2925 err = rdev_add_key(rdev, dev, key.idx,
2926 key.type == NL80211_KEYTYPE_PAIRWISE,
2927 mac_addr, &key.p);
fffd0934 2928 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2929
41ade00f
JB		 2930 return err;
2931}
2932
2933static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2934{
4c476991 2935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2936 int err;
4c476991 2937 struct net_device *dev = info->user_ptr[1];
41ade00f 2938 u8 *mac_addr = NULL;
b9454e83 2939 struct key_parse key;
41ade00f 2940
b9454e83
JB		 2941 err = nl80211_parse_key(info, &key);
2942 if (err)
2943 return err;
41ade00f
JB		 2944
2945 if (info->attrs[NL80211_ATTR_MAC])
2946 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2947
e31b8213
JB		 2948 if (key.type == -1) {
2949 if (mac_addr)
2950 key.type = NL80211_KEYTYPE_PAIRWISE;
2951 else
2952 key.type = NL80211_KEYTYPE_GROUP;
2953 }
2954
2955 /* for now */
2956 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2957 key.type != NL80211_KEYTYPE_GROUP)
2958 return -EINVAL;
2959
4c476991
JB		 2960 if (!rdev->ops->del_key)
2961 return -EOPNOTSUPP;
41ade00f 2962
fffd0934
JB		 2963 wdev_lock(dev->ieee80211_ptr);
2964 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2965
2966 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2967 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2968 err = -ENOENT;
2969
fffd0934 2970 if (!err)
e35e4d28
HG		 2971 err = rdev_del_key(rdev, dev, key.idx,
2972 key.type == NL80211_KEYTYPE_PAIRWISE,
2973 mac_addr);
41ade00f 2974
3d23e349 2975#ifdef CONFIG_CFG80211_WEXT
08645126 2976 if (!err) {
b9454e83 2977 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2978 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2979 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2980 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2981 }
2982#endif
fffd0934 2983 wdev_unlock(dev->ieee80211_ptr);
08645126 2984
41ade00f
JB		 2985 return err;
2986}
2987
77765eaf
VT		 2988/* This function returns an error or the number of nested attributes */
2989static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2990{
2991 struct nlattr *attr;
2992 int n_entries = 0, tmp;
2993
2994 nla_for_each_nested(attr, nl_attr, tmp) {
2995 if (nla_len(attr) != ETH_ALEN)
2996 return -EINVAL;
2997
2998 n_entries++;
2999 }
3000
3001 return n_entries;
3002}
3003
3004/*
3005 * This function parses ACL information and allocates memory for ACL data.
3006 * On successful return, the calling function is responsible to free the
3007 * ACL buffer returned by this function.
3008 */
3009static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3010 struct genl_info *info)
3011{
3012 enum nl80211_acl_policy acl_policy;
3013 struct nlattr *attr;
3014 struct cfg80211_acl_data *acl;
3015 int i = 0, n_entries, tmp;
3016
3017 if (!wiphy->max_acl_mac_addrs)
3018 return ERR_PTR(-EOPNOTSUPP);
3019
3020 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3021 return ERR_PTR(-EINVAL);
3022
3023 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3024 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3025 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3026 return ERR_PTR(-EINVAL);
3027
3028 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3029 return ERR_PTR(-EINVAL);
3030
3031 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3032 if (n_entries < 0)
3033 return ERR_PTR(n_entries);
3034
3035 if (n_entries > wiphy->max_acl_mac_addrs)
3036 return ERR_PTR(-ENOTSUPP);
3037
3038 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3039 GFP_KERNEL);
3040 if (!acl)
3041 return ERR_PTR(-ENOMEM);
3042
3043 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3044 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3045 i++;
3046 }
3047
3048 acl->n_acl_entries = n_entries;
3049 acl->acl_policy = acl_policy;
3050
3051 return acl;
3052}
3053
3054static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3055{
3056 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3057 struct net_device *dev = info->user_ptr[1];
3058 struct cfg80211_acl_data *acl;
3059 int err;
3060
3061 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3062 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3063 return -EOPNOTSUPP;
3064
3065 if (!dev->ieee80211_ptr->beacon_interval)
3066 return -EINVAL;
3067
3068 acl = parse_acl_data(&rdev->wiphy, info);
3069 if (IS_ERR(acl))
3070 return PTR_ERR(acl);
3071
3072 err = rdev_set_mac_acl(rdev, dev, acl);
3073
3074 kfree(acl);
3075
3076 return err;
3077}
3078
a1193be8 3079static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3080 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3081{
8860020e 3082 bool haveinfo = false;
ed1b6cc7 3083
a1193be8
SW		 3084 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3085 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3086 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3087 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3088 return -EINVAL;
3089
8860020e 3090 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3091
a1193be8
SW		 3092 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3093 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3094 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3095 if (!bcn->head_len)
3096 return -EINVAL;
3097 haveinfo = true;
ed1b6cc7
JB		 3098 }
3099
a1193be8
SW		 3100 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3101 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3102 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3103 haveinfo = true;
ed1b6cc7
JB		 3104 }
3105
4c476991
JB		 3106 if (!haveinfo)
3107 return -EINVAL;
3b85875a 3108
a1193be8
SW		 3109 if (attrs[NL80211_ATTR_IE]) {
3110 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3111 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3112 }
3113
a1193be8 3114 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3115 bcn->proberesp_ies =
a1193be8 3116 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3117 bcn->proberesp_ies_len =
a1193be8 3118 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3119 }
3120
a1193be8 3121 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3122 bcn->assocresp_ies =
a1193be8 3123 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3124 bcn->assocresp_ies_len =
a1193be8 3125 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3126 }
3127
a1193be8
SW		 3128 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3129 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3130 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3131 }
3132
8860020e
JB		 3133 return 0;
3134}
3135
46c1dd0c
FF		 3136static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3137 struct cfg80211_ap_settings *params)
3138{
3139 struct wireless_dev *wdev;
3140 bool ret = false;
3141
89a54e48 3142 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3143 if (wdev->iftype != NL80211_IFTYPE_AP &&
3144 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3145 continue;
3146
683b6d3b 3147 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3148 continue;
3149
683b6d3b 3150 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3151 ret = true;
3152 break;
3153 }
3154
46c1dd0c
FF		 3155 return ret;
3156}
3157
e39e5b5e
JM		 3158static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3159 enum nl80211_auth_type auth_type,
3160 enum nl80211_commands cmd)
3161{
3162 if (auth_type > NL80211_AUTHTYPE_MAX)
3163 return false;
3164
3165 switch (cmd) {
3166 case NL80211_CMD_AUTHENTICATE:
3167 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3168 auth_type == NL80211_AUTHTYPE_SAE)
3169 return false;
3170 return true;
3171 case NL80211_CMD_CONNECT:
3172 case NL80211_CMD_START_AP:
3173 /* SAE not supported yet */
3174 if (auth_type == NL80211_AUTHTYPE_SAE)
3175 return false;
3176 return true;
3177 default:
3178 return false;
3179 }
3180}
3181
8860020e
JB		 3182static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3183{
3184 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3185 struct net_device *dev = info->user_ptr[1];
3186 struct wireless_dev *wdev = dev->ieee80211_ptr;
3187 struct cfg80211_ap_settings params;
3188 int err;
3189
3190 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3191 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3192 return -EOPNOTSUPP;
3193
3194 if (!rdev->ops->start_ap)
3195 return -EOPNOTSUPP;
3196
3197 if (wdev->beacon_interval)
3198 return -EALREADY;
3199
3200 memset(&params, 0, sizeof(params));
3201
3202 /* these are required for START_AP */
3203 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3204 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3205 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3206 return -EINVAL;
3207
a1193be8 3208 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3209 if (err)
3210 return err;
3211
3212 params.beacon_interval =
3213 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3214 params.dtim_period =
3215 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3216
3217 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3218 if (err)
3219 return err;
3220
3221 /*
3222 * In theory, some of these attributes should be required here
3223 * but since they were not used when the command was originally
3224 * added, keep them optional for old user space programs to let
3225 * them continue to work with drivers that do not need the
3226 * additional information -- drivers must check!
3227 */
3228 if (info->attrs[NL80211_ATTR_SSID]) {
3229 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3230 params.ssid_len =
3231 nla_len(info->attrs[NL80211_ATTR_SSID]);
3232 if (params.ssid_len == 0 ||
3233 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3234 return -EINVAL;
3235 }
3236
3237 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3238 params.hidden_ssid = nla_get_u32(
3239 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3240 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3241 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3242 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3243 return -EINVAL;
3244 }
3245
3246 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3247
3248 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3249 params.auth_type = nla_get_u32(
3250 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3251 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3252 NL80211_CMD_START_AP))
8860020e
JB		 3253 return -EINVAL;
3254 } else
3255 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3256
3257 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3258 NL80211_MAX_NR_CIPHER_SUITES);
3259 if (err)
3260 return err;
3261
1b658f11
VT		 3262 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3263 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3264 return -EOPNOTSUPP;
3265 params.inactivity_timeout = nla_get_u16(
3266 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3267 }
3268
53cabad7
JB		 3269 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3270 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3271 return -EINVAL;
3272 params.p2p_ctwindow =
3273 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3274 if (params.p2p_ctwindow > 127)
3275 return -EINVAL;
3276 if (params.p2p_ctwindow != 0 &&
3277 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3278 return -EINVAL;
3279 }
3280
3281 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3282 u8 tmp;
3283
3284 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3285 return -EINVAL;
3286 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3287 if (tmp > 1)
3288 return -EINVAL;
3289 params.p2p_opp_ps = tmp;
3290 if (params.p2p_opp_ps != 0 &&
3291 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3292 return -EINVAL;
3293 }
3294
aa430da4 3295 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3296 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3297 if (err)
3298 return err;
3299 } else if (wdev->preset_chandef.chan) {
3300 params.chandef = wdev->preset_chandef;
46c1dd0c 3301 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3302 return -EINVAL;
3303
174e0cd2
IP		 3304 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3305 wdev->iftype))
aa430da4
JB		 3306 return -EINVAL;
3307
77765eaf
VT		 3308 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3309 params.acl = parse_acl_data(&rdev->wiphy, info);
3310 if (IS_ERR(params.acl))
3311 return PTR_ERR(params.acl);
3312 }
3313
c56589ed 3314 wdev_lock(wdev);
e35e4d28 3315 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3316 if (!err) {
683b6d3b 3317 wdev->preset_chandef = params.chandef;
8860020e 3318 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3319 wdev->chandef = params.chandef;
06e191e2
AQ		 3320 wdev->ssid_len = params.ssid_len;
3321 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3322 }
c56589ed 3323 wdev_unlock(wdev);
77765eaf
VT		 3324
3325 kfree(params.acl);
3326
56d1893d 3327 return err;
ed1b6cc7
JB		 3328}
3329
8860020e
JB		 3330static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3331{
3332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3333 struct net_device *dev = info->user_ptr[1];
3334 struct wireless_dev *wdev = dev->ieee80211_ptr;
3335 struct cfg80211_beacon_data params;
3336 int err;
3337
3338 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3339 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3340 return -EOPNOTSUPP;
3341
3342 if (!rdev->ops->change_beacon)
3343 return -EOPNOTSUPP;
3344
3345 if (!wdev->beacon_interval)
3346 return -EINVAL;
3347
a1193be8 3348 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3349 if (err)
3350 return err;
3351
c56589ed
SW		 3352 wdev_lock(wdev);
3353 err = rdev_change_beacon(rdev, dev, &params);
3354 wdev_unlock(wdev);
3355
3356 return err;
8860020e
JB		 3357}
3358
3359static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3360{
4c476991
JB		 3361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3362 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3363
7c8d5e03 3364 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3365}
3366
5727ef1b
JB		 3367static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3368 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3369 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3370 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3371 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3372 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3373 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3374};
3375
eccb8e8f 3376static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3377 enum nl80211_iftype iftype,
eccb8e8f 3378 struct station_parameters *params)
5727ef1b
JB		 3379{
3380 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3381 struct nlattr *nla;
5727ef1b
JB		 3382 int flag;
3383
eccb8e8f
JB		 3384 /*
3385 * Try parsing the new attribute first so userspace
3386 * can specify both for older kernels.
3387 */
3388 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3389 if (nla) {
3390 struct nl80211_sta_flag_update *sta_flags;
3391
3392 sta_flags = nla_data(nla);
3393 params->sta_flags_mask = sta_flags->mask;
3394 params->sta_flags_set = sta_flags->set;
77ee7c89 3395 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3396 if ((params->sta_flags_mask |
3397 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3398 return -EINVAL;
3399 return 0;
3400 }
3401
3402 /* if present, parse the old attribute */
5727ef1b 3403
eccb8e8f 3404 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3405 if (!nla)
3406 return 0;
3407
3408 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3409 nla, sta_flags_policy))
3410 return -EINVAL;
3411
bdd3ae3d
JB		 3412 /*
3413 * Only allow certain flags for interface types so that
3414 * other attributes are silently ignored. Remember that
3415 * this is backward compatibility code with old userspace
3416 * and shouldn't be hit in other cases anyway.
3417 */
3418 switch (iftype) {
3419 case NL80211_IFTYPE_AP:
3420 case NL80211_IFTYPE_AP_VLAN:
3421 case NL80211_IFTYPE_P2P_GO:
3422 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3423 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3424 BIT(NL80211_STA_FLAG_WME) |
3425 BIT(NL80211_STA_FLAG_MFP);
3426 break;
3427 case NL80211_IFTYPE_P2P_CLIENT:
3428 case NL80211_IFTYPE_STATION:
3429 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3430 BIT(NL80211_STA_FLAG_TDLS_PEER);
3431 break;
3432 case NL80211_IFTYPE_MESH_POINT:
3433 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3434 BIT(NL80211_STA_FLAG_MFP) |
3435 BIT(NL80211_STA_FLAG_AUTHORIZED);
3436 default:
3437 return -EINVAL;
3438 }
5727ef1b 3439
3383b5a6
JB		 3440 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3441 if (flags[flag]) {
eccb8e8f 3442 params->sta_flags_set |= (1<<flag);
5727ef1b 3443
3383b5a6
JB		 3444 /* no longer support new API additions in old API */
3445 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3446 return -EINVAL;
3447 }
3448 }
3449
5727ef1b
JB		 3450 return 0;
3451}
3452
c8dcfd8a
FF		 3453static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3454 int attr)
3455{
3456 struct nlattr *rate;
8eb41c8d
VK		 3457 u32 bitrate;
3458 u16 bitrate_compat;
c8dcfd8a
FF		 3459
3460 rate = nla_nest_start(msg, attr);
3461 if (!rate)
db9c64cf 3462 return false;
c8dcfd8a
FF		 3463
3464 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3465 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3466 /* report 16-bit bitrate only if we can */
3467 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3468 if (bitrate > 0 &&
3469 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3470 return false;
3471 if (bitrate_compat > 0 &&
3472 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3473 return false;
3474
3475 if (info->flags & RATE_INFO_FLAGS_MCS) {
3476 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3477 return false;
3478 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3479 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3480 return false;
3481 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3482 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3483 return false;
3484 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3485 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3486 return false;
3487 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3488 return false;
3489 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3490 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3491 return false;
3492 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3493 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3494 return false;
3495 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3496 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3497 return false;
3498 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3499 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3500 return false;
3501 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3502 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3503 return false;
3504 }
c8dcfd8a
FF		 3505
3506 nla_nest_end(msg, rate);
3507 return true;
c8dcfd8a
FF		 3508}
3509
119363c7
FF		 3510static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3511 int id)
3512{
3513 void *attr;
3514 int i = 0;
3515
3516 if (!mask)
3517 return true;
3518
3519 attr = nla_nest_start(msg, id);
3520 if (!attr)
3521 return false;
3522
3523 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3524 if (!(mask & BIT(i)))
3525 continue;
3526
3527 if (nla_put_u8(msg, i, signal[i]))
3528 return false;
3529 }
3530
3531 nla_nest_end(msg, attr);
3532
3533 return true;
3534}
3535
15e47304 3536static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3537 int flags,
3538 struct cfg80211_registered_device *rdev,
3539 struct net_device *dev,
98b62183 3540 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3541{
3542 void *hdr;
f4263c98 3543 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3544
15e47304 3545 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3546 if (!hdr)
3547 return -1;
3548
9360ffd1
DM		 3549 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3550 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3551 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3552 goto nla_put_failure;
f5ea9120 3553
2ec600d6
LCC		 3554 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3555 if (!sinfoattr)
fd5b74dc 3556 goto nla_put_failure;
9360ffd1
DM		 3557 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3558 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3559 sinfo->connected_time))
3560 goto nla_put_failure;
3561 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3562 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3563 sinfo->inactive_time))
3564 goto nla_put_failure;
42745e03
VK		 3565 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3566 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3567 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3568 (u32)sinfo->rx_bytes))
9360ffd1 3569 goto nla_put_failure;
42745e03 3570 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3571 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3572 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3573 (u32)sinfo->tx_bytes))
3574 goto nla_put_failure;
3575 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3576 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3577 sinfo->rx_bytes))
3578 goto nla_put_failure;
3579 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3580 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3581 sinfo->tx_bytes))
3582 goto nla_put_failure;
3583 if ((sinfo->filled & STATION_INFO_LLID) &&
3584 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3585 goto nla_put_failure;
3586 if ((sinfo->filled & STATION_INFO_PLID) &&
3587 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3588 goto nla_put_failure;
3589 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3590 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3591 sinfo->plink_state))
3592 goto nla_put_failure;
66266b3a
JL		 3593 switch (rdev->wiphy.signal_type) {
3594 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3595 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3596 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3597 sinfo->signal))
3598 goto nla_put_failure;
3599 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3600 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3601 sinfo->signal_avg))
3602 goto nla_put_failure;
66266b3a
JL		 3603 break;
3604 default:
3605 break;
3606 }
119363c7
FF		 3607 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3608 if (!nl80211_put_signal(msg, sinfo->chains,
3609 sinfo->chain_signal,
3610 NL80211_STA_INFO_CHAIN_SIGNAL))
3611 goto nla_put_failure;
3612 }
3613 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3614 if (!nl80211_put_signal(msg, sinfo->chains,
3615 sinfo->chain_signal_avg,
3616 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3617 goto nla_put_failure;
3618 }
420e7fab 3619 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3620 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3621 NL80211_STA_INFO_TX_BITRATE))
3622 goto nla_put_failure;
3623 }
3624 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3625 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3626 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3627 goto nla_put_failure;
420e7fab 3628 }
9360ffd1
DM		 3629 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3630 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3631 sinfo->rx_packets))
3632 goto nla_put_failure;
3633 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3634 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3635 sinfo->tx_packets))
3636 goto nla_put_failure;
3637 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3638 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3639 sinfo->tx_retries))
3640 goto nla_put_failure;
3641 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3642 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3643 sinfo->tx_failed))
3644 goto nla_put_failure;
3645 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3646 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3647 sinfo->beacon_loss_count))
3648 goto nla_put_failure;
3b1c5a53
MP		 3649 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3650 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3651 sinfo->local_pm))
3652 goto nla_put_failure;
3653 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3654 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3655 sinfo->peer_pm))
3656 goto nla_put_failure;
3657 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3658 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3659 sinfo->nonpeer_pm))
3660 goto nla_put_failure;
f4263c98
PS		 3661 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3662 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3663 if (!bss_param)
3664 goto nla_put_failure;
3665
9360ffd1
DM		 3666 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3667 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3668 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3669 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3670 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3671 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3672 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3673 sinfo->bss_param.dtim_period) ||
3674 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3675 sinfo->bss_param.beacon_interval))
3676 goto nla_put_failure;
f4263c98
PS		 3677
3678 nla_nest_end(msg, bss_param);
3679 }
9360ffd1
DM		 3680 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3681 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3682 sizeof(struct nl80211_sta_flag_update),
3683 &sinfo->sta_flags))
3684 goto nla_put_failure;
7eab0f64
JL		 3685 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3686 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3687 sinfo->t_offset))
3688 goto nla_put_failure;
2ec600d6 3689 nla_nest_end(msg, sinfoattr);
fd5b74dc 3690
9360ffd1
DM		 3691 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3692 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3693 sinfo->assoc_req_ies))
3694 goto nla_put_failure;
50d3dfb7 3695
fd5b74dc
JB		 3696 return genlmsg_end(msg, hdr);
3697
3698 nla_put_failure:
bc3ed28c
TG		 3699 genlmsg_cancel(msg, hdr);
3700 return -EMSGSIZE;
fd5b74dc
JB		 3701}
3702
2ec600d6 3703static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3704 struct netlink_callback *cb)
2ec600d6 3705{
2ec600d6 3706 struct station_info sinfo;
1b8ec87a 3707 struct cfg80211_registered_device *rdev;
97990a06 3708 struct wireless_dev *wdev;
2ec600d6 3709 u8 mac_addr[ETH_ALEN];
97990a06 3710 int sta_idx = cb->args[2];
2ec600d6 3711 int err;
2ec600d6 3712
1b8ec87a 3713 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3714 if (err)
3715 return err;
bba95fef 3716
97990a06
JB		 3717 if (!wdev->netdev) {
3718 err = -EINVAL;
3719 goto out_err;
3720 }
3721
1b8ec87a 3722 if (!rdev->ops->dump_station) {
eec60b03 3723 err = -EOPNOTSUPP;
bba95fef
JB		 3724 goto out_err;
3725 }
3726
bba95fef 3727 while (1) {
f612cedf 3728 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3729 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3730 mac_addr, &sinfo);
bba95fef
JB		 3731 if (err == -ENOENT)
3732 break;
3733 if (err)
3b85875a 3734 goto out_err;
bba95fef
JB		 3735
3736 if (nl80211_send_station(skb,
15e47304 3737 NETLINK_CB(cb->skb).portid,
bba95fef 3738 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3739 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3740 &sinfo) < 0)
3741 goto out;
3742
3743 sta_idx++;
3744 }
3745
3746
3747 out:
97990a06 3748 cb->args[2] = sta_idx;
bba95fef 3749 err = skb->len;
bba95fef 3750 out_err:
1b8ec87a 3751 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3752
3753 return err;
2ec600d6 3754}
fd5b74dc 3755
5727ef1b
JB		 3756static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3757{
4c476991
JB		 3758 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3759 struct net_device *dev = info->user_ptr[1];
2ec600d6 3760 struct station_info sinfo;
fd5b74dc
JB		 3761 struct sk_buff *msg;
3762 u8 *mac_addr = NULL;
4c476991 3763 int err;
fd5b74dc 3764
2ec600d6 3765 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3766
3767 if (!info->attrs[NL80211_ATTR_MAC])
3768 return -EINVAL;
3769
3770 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3771
4c476991
JB		 3772 if (!rdev->ops->get_station)
3773 return -EOPNOTSUPP;
3b85875a 3774
e35e4d28 3775 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3776 if (err)
4c476991 3777 return err;
2ec600d6 3778
fd2120ca 3779 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3780 if (!msg)
4c476991 3781 return -ENOMEM;
fd5b74dc 3782
15e47304 3783 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3784 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3785 nlmsg_free(msg);
3786 return -ENOBUFS;
3787 }
3b85875a 3788
4c476991 3789 return genlmsg_reply(msg, info);
5727ef1b
JB		 3790}
3791
77ee7c89
JB		 3792int cfg80211_check_station_change(struct wiphy *wiphy,
3793 struct station_parameters *params,
3794 enum cfg80211_station_type statype)
3795{
3796 if (params->listen_interval != -1)
3797 return -EINVAL;
3798 if (params->aid)
3799 return -EINVAL;
3800
3801 /* When you run into this, adjust the code below for the new flag */
3802 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3803
3804 switch (statype) {
eef941e6
TP		 3805 case CFG80211_STA_MESH_PEER_KERNEL:
3806 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3807 /*
3808 * No ignoring the TDLS flag here -- the userspace mesh
3809 * code doesn't have the bug of including TDLS in the
3810 * mask everywhere.
3811 */
3812 if (params->sta_flags_mask &
3813 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3814 BIT(NL80211_STA_FLAG_MFP) |
3815 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3816 return -EINVAL;
3817 break;
3818 case CFG80211_STA_TDLS_PEER_SETUP:
3819 case CFG80211_STA_TDLS_PEER_ACTIVE:
3820 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3821 return -EINVAL;
3822 /* ignore since it can't change */
3823 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3824 break;
3825 default:
3826 /* disallow mesh-specific things */
3827 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3828 return -EINVAL;
3829 if (params->local_pm)
3830 return -EINVAL;
3831 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3832 return -EINVAL;
3833 }
3834
3835 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3836 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3837 /* TDLS can't be set, ... */
3838 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3839 return -EINVAL;
3840 /*
3841 * ... but don't bother the driver with it. This works around
3842 * a hostapd/wpa_supplicant issue -- it always includes the
3843 * TLDS_PEER flag in the mask even for AP mode.
3844 */
3845 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3846 }
3847
3848 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3849 /* reject other things that can't change */
3850 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3851 return -EINVAL;
3852 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3853 return -EINVAL;
3854 if (params->supported_rates)
3855 return -EINVAL;
3856 if (params->ext_capab || params->ht_capa || params->vht_capa)
3857 return -EINVAL;
3858 }
3859
3860 if (statype != CFG80211_STA_AP_CLIENT) {
3861 if (params->vlan)
3862 return -EINVAL;
3863 }
3864
3865 switch (statype) {
3866 case CFG80211_STA_AP_MLME_CLIENT:
3867 /* Use this only for authorizing/unauthorizing a station */
3868 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3869 return -EOPNOTSUPP;
3870 break;
3871 case CFG80211_STA_AP_CLIENT:
3872 /* accept only the listed bits */
3873 if (params->sta_flags_mask &
3874 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3875 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3876 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3877 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3878 BIT(NL80211_STA_FLAG_WME) |
3879 BIT(NL80211_STA_FLAG_MFP)))
3880 return -EINVAL;
3881
3882 /* but authenticated/associated only if driver handles it */
3883 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3884 params->sta_flags_mask &
3885 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3886 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3887 return -EINVAL;
3888 break;
3889 case CFG80211_STA_IBSS:
3890 case CFG80211_STA_AP_STA:
3891 /* reject any changes other than AUTHORIZED */
3892 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3893 return -EINVAL;
3894 break;
3895 case CFG80211_STA_TDLS_PEER_SETUP:
3896 /* reject any changes other than AUTHORIZED or WME */
3897 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3898 BIT(NL80211_STA_FLAG_WME)))
3899 return -EINVAL;
3900 /* force (at least) rates when authorizing */
3901 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3902 !params->supported_rates)
3903 return -EINVAL;
3904 break;
3905 case CFG80211_STA_TDLS_PEER_ACTIVE:
3906 /* reject any changes */
3907 return -EINVAL;
eef941e6 3908 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3909 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3910 return -EINVAL;
3911 break;
eef941e6 3912 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3913 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3914 return -EINVAL;
3915 break;
3916 }
3917
3918 return 0;
3919}
3920EXPORT_SYMBOL(cfg80211_check_station_change);
3921
5727ef1b 3922/*
c258d2de 3923 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3924 */
80b99899
JB		 3925static struct net_device *get_vlan(struct genl_info *info,
3926 struct cfg80211_registered_device *rdev)
5727ef1b 3927{
463d0183 3928 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3929 struct net_device *v;
3930 int ret;
3931
3932 if (!vlanattr)
3933 return NULL;
3934
3935 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3936 if (!v)
3937 return ERR_PTR(-ENODEV);
3938
3939 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3940 ret = -EINVAL;
3941 goto error;
5727ef1b 3942 }
80b99899 3943
77ee7c89
JB		 3944 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3945 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3946 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3947 ret = -EINVAL;
3948 goto error;
3949 }
3950
80b99899
JB		 3951 if (!netif_running(v)) {
3952 ret = -ENETDOWN;
3953 goto error;
3954 }
3955
3956 return v;
3957 error:
3958 dev_put(v);
3959 return ERR_PTR(ret);
5727ef1b
JB		 3960}
3961
94e860f1
JB		 3962static const struct nla_policy
3963nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 3964 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3965 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3966};
3967
ff276691
JB		 3968static int nl80211_parse_sta_wme(struct genl_info *info,
3969 struct station_parameters *params)
df881293 3970{
df881293
JM		 3971 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3972 struct nlattr *nla;
3973 int err;
3974
df881293
JM		 3975 /* parse WME attributes if present */
3976 if (!info->attrs[NL80211_ATTR_STA_WME])
3977 return 0;
3978
3979 nla = info->attrs[NL80211_ATTR_STA_WME];
3980 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3981 nl80211_sta_wme_policy);
3982 if (err)
3983 return err;
3984
3985 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3986 params->uapsd_queues = nla_get_u8(
3987 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3988 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3989 return -EINVAL;
3990
3991 if (tb[NL80211_STA_WME_MAX_SP])
3992 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3993
3994 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3995 return -EINVAL;
3996
3997 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3998
3999 return 0;
4000}
4001
c01fc9ad
SD		 4002static int nl80211_parse_sta_channel_info(struct genl_info *info,
4003 struct station_parameters *params)
4004{
4005 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4006 params->supported_channels =
4007 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4008 params->supported_channels_len =
4009 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4010 /*
4011 * Need to include at least one (first channel, number of
4012 * channels) tuple for each subband, and must have proper
4013 * tuples for the rest of the data as well.
4014 */
4015 if (params->supported_channels_len < 2)
4016 return -EINVAL;
4017 if (params->supported_channels_len % 2)
4018 return -EINVAL;
4019 }
4020
4021 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4022 params->supported_oper_classes =
4023 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4024 params->supported_oper_classes_len =
4025 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4026 /*
4027 * The value of the Length field of the Supported Operating
4028 * Classes element is between 2 and 253.
4029 */
4030 if (params->supported_oper_classes_len < 2 ||
4031 params->supported_oper_classes_len > 253)
4032 return -EINVAL;
4033 }
4034 return 0;
4035}
4036
ff276691
JB		 4037static int nl80211_set_station_tdls(struct genl_info *info,
4038 struct station_parameters *params)
4039{
c01fc9ad 4040 int err;
ff276691 4041 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4042 if (info->attrs[NL80211_ATTR_PEER_AID])
4043 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4044 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4045 params->ht_capa =
4046 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4047 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4048 params->vht_capa =
4049 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4050
c01fc9ad
SD		 4051 err = nl80211_parse_sta_channel_info(info, params);
4052 if (err)
4053 return err;
4054
ff276691
JB		 4055 return nl80211_parse_sta_wme(info, params);
4056}
4057
5727ef1b
JB		 4058static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4059{
4c476991 4060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4061 struct net_device *dev = info->user_ptr[1];
5727ef1b 4062 struct station_parameters params;
77ee7c89
JB		 4063 u8 *mac_addr;
4064 int err;
5727ef1b
JB		 4065
4066 memset(&params, 0, sizeof(params));
4067
4068 params.listen_interval = -1;
4069
77ee7c89
JB		 4070 if (!rdev->ops->change_station)
4071 return -EOPNOTSUPP;
4072
5727ef1b
JB		 4073 if (info->attrs[NL80211_ATTR_STA_AID])
4074 return -EINVAL;
4075
4076 if (!info->attrs[NL80211_ATTR_MAC])
4077 return -EINVAL;
4078
4079 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4080
4081 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4082 params.supported_rates =
4083 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4084 params.supported_rates_len =
4085 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4086 }
4087
9d62a986
JM		 4088 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4089 params.capability =
4090 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4091 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4092 }
4093
4094 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4095 params.ext_capab =
4096 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4097 params.ext_capab_len =
4098 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4099 }
4100
df881293 4101 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4102 return -EINVAL;
36aedc90 4103
bdd3ae3d 4104 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4105 return -EINVAL;
4106
f8bacc21 4107 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4108 params.plink_action =
f8bacc21
JB		 4109 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4110 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4111 return -EINVAL;
4112 }
2ec600d6 4113
f8bacc21 4114 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4115 params.plink_state =
f8bacc21
JB		 4116 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4117 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4118 return -EINVAL;
4119 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4120 }
9c3990aa 4121
3b1c5a53
MP		 4122 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4123 enum nl80211_mesh_power_mode pm = nla_get_u32(
4124 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4125
4126 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4127 pm > NL80211_MESH_POWER_MAX)
4128 return -EINVAL;
4129
4130 params.local_pm = pm;
4131 }
4132
77ee7c89
JB		 4133 /* Include parameters for TDLS peer (will check later) */
4134 err = nl80211_set_station_tdls(info, &params);
4135 if (err)
4136 return err;
4137
4138 params.vlan = get_vlan(info, rdev);
4139 if (IS_ERR(params.vlan))
4140 return PTR_ERR(params.vlan);
4141
a97f4424
JB		 4142 switch (dev->ieee80211_ptr->iftype) {
4143 case NL80211_IFTYPE_AP:
4144 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4145 case NL80211_IFTYPE_P2P_GO:
074ac8df 4146 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4147 case NL80211_IFTYPE_STATION:
267335d6 4148 case NL80211_IFTYPE_ADHOC:
a97f4424 4149 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4150 break;
4151 default:
77ee7c89
JB		 4152 err = -EOPNOTSUPP;
4153 goto out_put_vlan;
034d655e
JB		 4154 }
4155
77ee7c89 4156 /* driver will call cfg80211_check_station_change() */
e35e4d28 4157 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4158
77ee7c89 4159 out_put_vlan:
5727ef1b
JB		 4160 if (params.vlan)
4161 dev_put(params.vlan);
3b85875a 4162
5727ef1b
JB		 4163 return err;
4164}
4165
4166static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4167{
4c476991 4168 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4169 int err;
4c476991 4170 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4171 struct station_parameters params;
4172 u8 *mac_addr = NULL;
4173
4174 memset(&params, 0, sizeof(params));
4175
984c311b
JB		 4176 if (!rdev->ops->add_station)
4177 return -EOPNOTSUPP;
4178
5727ef1b
JB		 4179 if (!info->attrs[NL80211_ATTR_MAC])
4180 return -EINVAL;
4181
5727ef1b
JB		 4182 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4183 return -EINVAL;
4184
4185 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4186 return -EINVAL;
4187
5e4b6f56
JM		 4188 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4189 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4190 return -EINVAL;
4191
5727ef1b
JB		 4192 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4193 params.supported_rates =
4194 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4195 params.supported_rates_len =
4196 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4197 params.listen_interval =
4198 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4199
3d124ea2 4200 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4201 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4202 else
4203 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4204 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4205 return -EINVAL;
51b50fbe 4206
9d62a986
JM		 4207 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4208 params.capability =
4209 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4210 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4211 }
4212
4213 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4214 params.ext_capab =
4215 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4216 params.ext_capab_len =
4217 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4218 }
4219
36aedc90
JM		 4220 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4221 params.ht_capa =
4222 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4223
f461be3e
MP		 4224 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4225 params.vht_capa =
4226 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4227
60f4a7b1
MK		 4228 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4229 params.opmode_notif_used = true;
4230 params.opmode_notif =
4231 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4232 }
4233
f8bacc21 4234 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4235 params.plink_action =
f8bacc21
JB		 4236 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4237 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4238 return -EINVAL;
4239 }
96b78dff 4240
c01fc9ad
SD		 4241 err = nl80211_parse_sta_channel_info(info, &params);
4242 if (err)
4243 return err;
4244
ff276691
JB		 4245 err = nl80211_parse_sta_wme(info, &params);
4246 if (err)
4247 return err;
bdd90d5e 4248
bdd3ae3d 4249 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4250 return -EINVAL;
4251
77ee7c89
JB		 4252 /* When you run into this, adjust the code below for the new flag */
4253 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4254
bdd90d5e
JB		 4255 switch (dev->ieee80211_ptr->iftype) {
4256 case NL80211_IFTYPE_AP:
4257 case NL80211_IFTYPE_AP_VLAN:
4258 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4259 /* ignore WME attributes if iface/sta is not capable */
4260 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4261 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4262 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4263
bdd90d5e 4264 /* TDLS peers cannot be added */
3d124ea2
JM		 4265 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4266 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4267 return -EINVAL;
bdd90d5e
JB		 4268 /* but don't bother the driver with it */
4269 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4270
d582cffb
JB		 4271 /* allow authenticated/associated only if driver handles it */
4272 if (!(rdev->wiphy.features &
4273 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4274 params.sta_flags_mask &
4275 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4276 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4277 return -EINVAL;
4278
bdd90d5e
JB		 4279 /* must be last in here for error handling */
4280 params.vlan = get_vlan(info, rdev);
4281 if (IS_ERR(params.vlan))
4282 return PTR_ERR(params.vlan);
4283 break;
4284 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4285 /* ignore uAPSD data */
4286 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4287
d582cffb
JB		 4288 /* associated is disallowed */
4289 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4290 return -EINVAL;
bdd90d5e 4291 /* TDLS peers cannot be added */
3d124ea2
JM		 4292 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4293 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4294 return -EINVAL;
4295 break;
4296 case NL80211_IFTYPE_STATION:
93d08f0b 4297 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4298 /* ignore uAPSD data */
4299 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4300
77ee7c89
JB		 4301 /* these are disallowed */
4302 if (params.sta_flags_mask &
4303 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4304 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4305 return -EINVAL;
bdd90d5e
JB		 4306 /* Only TDLS peers can be added */
4307 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4308 return -EINVAL;
4309 /* Can only add if TDLS ... */
4310 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4311 return -EOPNOTSUPP;
4312 /* ... with external setup is supported */
4313 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4314 return -EOPNOTSUPP;
77ee7c89
JB		 4315 /*
4316 * Older wpa_supplicant versions always mark the TDLS peer
4317 * as authorized, but it shouldn't yet be.
4318 */
4319 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4320 break;
4321 default:
4322 return -EOPNOTSUPP;
c75786c9
EP		 4323 }
4324
bdd90d5e 4325 /* be aware of params.vlan when changing code here */
5727ef1b 4326
e35e4d28 4327 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4328
5727ef1b
JB		 4329 if (params.vlan)
4330 dev_put(params.vlan);
5727ef1b
JB		 4331 return err;
4332}
4333
4334static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4335{
4c476991
JB		 4336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4337 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4338 u8 *mac_addr = NULL;
4339
4340 if (info->attrs[NL80211_ATTR_MAC])
4341 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4342
e80cf853 4343 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4344 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4345 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4346 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4347 return -EINVAL;
5727ef1b 4348
4c476991
JB		 4349 if (!rdev->ops->del_station)
4350 return -EOPNOTSUPP;
3b85875a 4351
e35e4d28 4352 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4353}
4354
15e47304 4355static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4356 int flags, struct net_device *dev,
4357 u8 *dst, u8 *next_hop,
4358 struct mpath_info *pinfo)
4359{
4360 void *hdr;
4361 struct nlattr *pinfoattr;
4362
15e47304 4363 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4364 if (!hdr)
4365 return -1;
4366
9360ffd1
DM		 4367 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4368 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4369 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4370 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4371 goto nla_put_failure;
f5ea9120 4372
2ec600d6
LCC		 4373 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4374 if (!pinfoattr)
4375 goto nla_put_failure;
9360ffd1
DM		 4376 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4377 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4378 pinfo->frame_qlen))
4379 goto nla_put_failure;
4380 if (((pinfo->filled & MPATH_INFO_SN) &&
4381 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4382 ((pinfo->filled & MPATH_INFO_METRIC) &&
4383 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4384 pinfo->metric)) ||
4385 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4386 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4387 pinfo->exptime)) ||
4388 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4389 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4390 pinfo->flags)) ||
4391 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4392 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4393 pinfo->discovery_timeout)) ||
4394 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4395 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4396 pinfo->discovery_retries)))
4397 goto nla_put_failure;
2ec600d6
LCC		 4398
4399 nla_nest_end(msg, pinfoattr);
4400
4401 return genlmsg_end(msg, hdr);
4402
4403 nla_put_failure:
bc3ed28c
TG		 4404 genlmsg_cancel(msg, hdr);
4405 return -EMSGSIZE;
2ec600d6
LCC		 4406}
4407
4408static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4409 struct netlink_callback *cb)
2ec600d6 4410{
2ec600d6 4411 struct mpath_info pinfo;
1b8ec87a 4412 struct cfg80211_registered_device *rdev;
97990a06 4413 struct wireless_dev *wdev;
2ec600d6
LCC		 4414 u8 dst[ETH_ALEN];
4415 u8 next_hop[ETH_ALEN];
97990a06 4416 int path_idx = cb->args[2];
2ec600d6 4417 int err;
2ec600d6 4418
1b8ec87a 4419 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4420 if (err)
4421 return err;
bba95fef 4422
1b8ec87a 4423 if (!rdev->ops->dump_mpath) {
eec60b03 4424 err = -EOPNOTSUPP;
bba95fef
JB		 4425 goto out_err;
4426 }
4427
97990a06 4428 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4429 err = -EOPNOTSUPP;
0448b5fc 4430 goto out_err;
eec60b03
JM		 4431 }
4432
bba95fef 4433 while (1) {
1b8ec87a 4434 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4435 next_hop, &pinfo);
bba95fef 4436 if (err == -ENOENT)
2ec600d6 4437 break;
bba95fef 4438 if (err)
3b85875a 4439 goto out_err;
2ec600d6 4440
15e47304 4441 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4442 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4443 wdev->netdev, dst, next_hop,
bba95fef
JB		 4444 &pinfo) < 0)
4445 goto out;
2ec600d6 4446
bba95fef 4447 path_idx++;
2ec600d6 4448 }
2ec600d6 4449
2ec600d6 4450
bba95fef 4451 out:
97990a06 4452 cb->args[2] = path_idx;
bba95fef 4453 err = skb->len;
bba95fef 4454 out_err:
1b8ec87a 4455 nl80211_finish_wdev_dump(rdev);
bba95fef 4456 return err;
2ec600d6
LCC		 4457}
4458
4459static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4460{
4c476991 4461 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4462 int err;
4c476991 4463 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4464 struct mpath_info pinfo;
4465 struct sk_buff *msg;
4466 u8 *dst = NULL;
4467 u8 next_hop[ETH_ALEN];
4468
4469 memset(&pinfo, 0, sizeof(pinfo));
4470
4471 if (!info->attrs[NL80211_ATTR_MAC])
4472 return -EINVAL;
4473
4474 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4475
4c476991
JB		 4476 if (!rdev->ops->get_mpath)
4477 return -EOPNOTSUPP;
2ec600d6 4478
4c476991
JB		 4479 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4480 return -EOPNOTSUPP;
eec60b03 4481
e35e4d28 4482 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4483 if (err)
4c476991 4484 return err;
2ec600d6 4485
fd2120ca 4486 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4487 if (!msg)
4c476991 4488 return -ENOMEM;
2ec600d6 4489
15e47304 4490 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4491 dev, dst, next_hop, &pinfo) < 0) {
4492 nlmsg_free(msg);
4493 return -ENOBUFS;
4494 }
3b85875a 4495
4c476991 4496 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4497}
4498
4499static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4500{
4c476991
JB		 4501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4502 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4503 u8 *dst = NULL;
4504 u8 *next_hop = NULL;
4505
4506 if (!info->attrs[NL80211_ATTR_MAC])
4507 return -EINVAL;
4508
4509 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4510 return -EINVAL;
4511
4512 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4513 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4514
4c476991
JB		 4515 if (!rdev->ops->change_mpath)
4516 return -EOPNOTSUPP;
35a8efe1 4517
4c476991
JB		 4518 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4519 return -EOPNOTSUPP;
2ec600d6 4520
e35e4d28 4521 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4522}
4c476991 4523
2ec600d6
LCC		 4524static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4525{
4c476991
JB		 4526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4527 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4528 u8 *dst = NULL;
4529 u8 *next_hop = NULL;
4530
4531 if (!info->attrs[NL80211_ATTR_MAC])
4532 return -EINVAL;
4533
4534 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4535 return -EINVAL;
4536
4537 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4538 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4539
4c476991
JB		 4540 if (!rdev->ops->add_mpath)
4541 return -EOPNOTSUPP;
35a8efe1 4542
4c476991
JB		 4543 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4544 return -EOPNOTSUPP;
2ec600d6 4545
e35e4d28 4546 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4547}
4548
4549static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4550{
4c476991
JB		 4551 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4552 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4553 u8 *dst = NULL;
4554
4555 if (info->attrs[NL80211_ATTR_MAC])
4556 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4557
4c476991
JB		 4558 if (!rdev->ops->del_mpath)
4559 return -EOPNOTSUPP;
3b85875a 4560
e35e4d28 4561 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4562}
4563
9f1ba906
JM		 4564static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4565{
4c476991
JB		 4566 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4567 struct net_device *dev = info->user_ptr[1];
c56589ed 4568 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4569 struct bss_parameters params;
c56589ed 4570 int err;
9f1ba906
JM		 4571
4572 memset(&params, 0, sizeof(params));
4573 /* default to not changing parameters */
4574 params.use_cts_prot = -1;
4575 params.use_short_preamble = -1;
4576 params.use_short_slot_time = -1;
fd8aaaf3 4577 params.ap_isolate = -1;
50b12f59 4578 params.ht_opmode = -1;
53cabad7
JB		 4579 params.p2p_ctwindow = -1;
4580 params.p2p_opp_ps = -1;
9f1ba906
JM		 4581
4582 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4583 params.use_cts_prot =
4584 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4585 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4586 params.use_short_preamble =
4587 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4588 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4589 params.use_short_slot_time =
4590 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4591 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4592 params.basic_rates =
4593 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4594 params.basic_rates_len =
4595 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4596 }
fd8aaaf3
FF		 4597 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4598 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4599 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4600 params.ht_opmode =
4601 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4602
53cabad7
JB		 4603 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4604 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4605 return -EINVAL;
4606 params.p2p_ctwindow =
4607 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4608 if (params.p2p_ctwindow < 0)
4609 return -EINVAL;
4610 if (params.p2p_ctwindow != 0 &&
4611 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4612 return -EINVAL;
4613 }
4614
4615 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4616 u8 tmp;
4617
4618 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4619 return -EINVAL;
4620 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4621 if (tmp > 1)
4622 return -EINVAL;
4623 params.p2p_opp_ps = tmp;
4624 if (params.p2p_opp_ps &&
4625 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4626 return -EINVAL;
4627 }
4628
4c476991
JB		 4629 if (!rdev->ops->change_bss)
4630 return -EOPNOTSUPP;
9f1ba906 4631
074ac8df 4632 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4633 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4634 return -EOPNOTSUPP;
3b85875a 4635
c56589ed
SW		 4636 wdev_lock(wdev);
4637 err = rdev_change_bss(rdev, dev, &params);
4638 wdev_unlock(wdev);
4639
4640 return err;
9f1ba906
JM		 4641}
4642
b54452b0 4643static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4644 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4645 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4646 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4647 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4648 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4649 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4650 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4651};
4652
4653static int parse_reg_rule(struct nlattr *tb[],
4654 struct ieee80211_reg_rule *reg_rule)
4655{
4656 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4657 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4658
4659 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4660 return -EINVAL;
4661 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4662 return -EINVAL;
4663 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4664 return -EINVAL;
b0dfd2ea
JD		 4665 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4666 return -EINVAL;
b2e1b302
LR		 4667 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4668 return -EINVAL;
4669
4670 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4671
4672 freq_range->start_freq_khz =
4673 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4674 freq_range->end_freq_khz =
4675 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4676 freq_range->max_bandwidth_khz =
4677 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4678
4679 power_rule->max_eirp =
4680 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4681
4682 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4683 power_rule->max_antenna_gain =
4684 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4685
089027e5
JD		 4686 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4687 reg_rule->dfs_cac_ms =
4688 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4689
b2e1b302
LR		 4690 return 0;
4691}
4692
4693static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4694{
b2e1b302 4695 char *data = NULL;
57b5ce07 4696 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4697
80778f18
LR		 4698 /*
4699 * You should only get this when cfg80211 hasn't yet initialized
4700 * completely when built-in to the kernel right between the time
4701 * window between nl80211_init() and regulatory_init(), if that is
4702 * even possible.
4703 */
458f4f9e 4704 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4705 return -EINPROGRESS;
80778f18 4706
57b5ce07
LR		 4707 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4708 user_reg_hint_type =
4709 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4710 else
4711 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4712
4713 switch (user_reg_hint_type) {
4714 case NL80211_USER_REG_HINT_USER:
4715 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4716 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4717 return -EINVAL;
4718
4719 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4720 return regulatory_hint_user(data, user_reg_hint_type);
4721 case NL80211_USER_REG_HINT_INDOOR:
4722 return regulatory_hint_indoor_user();
57b5ce07
LR		 4723 default:
4724 return -EINVAL;
4725 }
b2e1b302
LR		 4726}
4727
24bdd9f4 4728static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4729 struct genl_info *info)
93da9cc1 4730{
4c476991 4731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4732 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4733 struct wireless_dev *wdev = dev->ieee80211_ptr;
4734 struct mesh_config cur_params;
4735 int err = 0;
93da9cc1 4736 void *hdr;
4737 struct nlattr *pinfoattr;
4738 struct sk_buff *msg;
4739
29cbe68c
JB		 4740 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4741 return -EOPNOTSUPP;
4742
24bdd9f4 4743 if (!rdev->ops->get_mesh_config)
4c476991 4744 return -EOPNOTSUPP;
f3f92586 4745
29cbe68c
JB		 4746 wdev_lock(wdev);
4747 /* If not connected, get default parameters */
4748 if (!wdev->mesh_id_len)
4749 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4750 else
e35e4d28 4751 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4752 wdev_unlock(wdev);
4753
93da9cc1 4754 if (err)
4c476991 4755 return err;
93da9cc1 4756
4757 /* Draw up a netlink message to send back */
fd2120ca 4758 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4759 if (!msg)
4760 return -ENOMEM;
15e47304 4761 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4762 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4763 if (!hdr)
efe1cf0c 4764 goto out;
24bdd9f4 4765 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4766 if (!pinfoattr)
4767 goto nla_put_failure;
9360ffd1
DM		 4768 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4769 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4770 cur_params.dot11MeshRetryTimeout) ||
4771 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4772 cur_params.dot11MeshConfirmTimeout) ||
4773 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4774 cur_params.dot11MeshHoldingTimeout) ||
4775 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4776 cur_params.dot11MeshMaxPeerLinks) ||
4777 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4778 cur_params.dot11MeshMaxRetries) ||
4779 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4780 cur_params.dot11MeshTTL) ||
4781 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4782 cur_params.element_ttl) ||
4783 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4784 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4785 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4786 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4787 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4788 cur_params.dot11MeshHWMPmaxPREQretries) ||
4789 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4790 cur_params.path_refresh_time) ||
4791 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4792 cur_params.min_discovery_timeout) ||
4793 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4794 cur_params.dot11MeshHWMPactivePathTimeout) ||
4795 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4796 cur_params.dot11MeshHWMPpreqMinInterval) ||
4797 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4798 cur_params.dot11MeshHWMPperrMinInterval) ||
4799 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4800 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4801 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4802 cur_params.dot11MeshHWMPRootMode) ||
4803 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4804 cur_params.dot11MeshHWMPRannInterval) ||
4805 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4806 cur_params.dot11MeshGateAnnouncementProtocol) ||
4807 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4808 cur_params.dot11MeshForwarding) ||
4809 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4810 cur_params.rssi_threshold) ||
4811 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4812 cur_params.ht_opmode) ||
4813 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4814 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4815 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4816 cur_params.dot11MeshHWMProotInterval) ||
4817 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4818 cur_params.dot11MeshHWMPconfirmationInterval) ||
4819 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4820 cur_params.power_mode) ||
4821 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4822 cur_params.dot11MeshAwakeWindowDuration) ||
4823 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4824 cur_params.plink_timeout))
9360ffd1 4825 goto nla_put_failure;
93da9cc1 4826 nla_nest_end(msg, pinfoattr);
4827 genlmsg_end(msg, hdr);
4c476991 4828 return genlmsg_reply(msg, info);
93da9cc1 4829
3b85875a 4830 nla_put_failure:
93da9cc1 4831 genlmsg_cancel(msg, hdr);
efe1cf0c 4832 out:
d080e275 4833 nlmsg_free(msg);
4c476991 4834 return -ENOBUFS;
93da9cc1 4835}
4836
b54452b0 4837static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4838 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4839 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4840 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4841 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4842 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4843 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4844 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4845 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4846 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4847 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4848 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4849 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4850 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4851 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4852 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4853 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4854 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4855 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4856 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4857 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4858 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4859 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4860 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4861 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4862 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4863 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4864 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4865 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4866};
4867
c80d545d
JC		 4868static const struct nla_policy
4869 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4870 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4871 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4872 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4873 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4874 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4875 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4876 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4877 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4878 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4879};
4880
24bdd9f4 4881static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4882 struct mesh_config *cfg,
4883 u32 *mask_out)
93da9cc1 4884{
93da9cc1 4885 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4886 u32 mask = 0;
93da9cc1 4887
ea54fba2
MP		 4888#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4889do { \
4890 if (tb[attr]) { \
4891 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4892 return -EINVAL; \
4893 cfg->param = fn(tb[attr]); \
4894 mask |= (1 << (attr - 1)); \
4895 } \
4896} while (0)
bd90fdcc
JB		 4897
4898
24bdd9f4 4899 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4900 return -EINVAL;
4901 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4902 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4903 nl80211_meshconf_params_policy))
93da9cc1 4904 return -EINVAL;
4905
93da9cc1 4906 /* This makes sure that there aren't more than 32 mesh config
4907 * parameters (otherwise our bitfield scheme would not work.) */
4908 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4909
4910 /* Fill in the params struct */
ea54fba2 4911 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4912 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4913 nla_get_u16);
ea54fba2 4914 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4915 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4916 nla_get_u16);
ea54fba2 4917 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4918 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4919 nla_get_u16);
ea54fba2 4920 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4921 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4922 nla_get_u16);
ea54fba2 4923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4924 mask, NL80211_MESHCONF_MAX_RETRIES,
4925 nla_get_u8);
ea54fba2 4926 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4927 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4928 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4929 mask, NL80211_MESHCONF_ELEMENT_TTL,
4930 nla_get_u8);
ea54fba2 4931 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4932 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4933 nla_get_u8);
ea54fba2
MP		 4934 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4935 1, 255, mask,
a4f606ea
CYY		 4936 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4937 nla_get_u32);
ea54fba2 4938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4939 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4940 nla_get_u8);
ea54fba2 4941 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4942 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4943 nla_get_u32);
ea54fba2 4944 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4945 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4946 nla_get_u16);
ea54fba2
MP		 4947 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4948 1, 65535, mask,
a4f606ea
CYY		 4949 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4950 nla_get_u32);
93da9cc1 4951 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4952 1, 65535, mask,
4953 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4954 nla_get_u16);
dca7e943 4955 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4956 1, 65535, mask,
4957 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4958 nla_get_u16);
93da9cc1 4959 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4960 dot11MeshHWMPnetDiameterTraversalTime,
4961 1, 65535, mask,
a4f606ea
CYY		 4962 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4963 nla_get_u16);
ea54fba2
MP		 4964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4965 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4966 nla_get_u8);
4967 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4968 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4969 nla_get_u16);
63c5723b 4970 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4971 dot11MeshGateAnnouncementProtocol, 0, 1,
4972 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4973 nla_get_u8);
ea54fba2 4974 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4975 mask, NL80211_MESHCONF_FORWARDING,
4976 nla_get_u8);
83374fe9 4977 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4978 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4979 nla_get_s32);
ea54fba2 4980 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4981 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4982 nla_get_u16);
4983 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4984 1, 65535, mask,
ac1073a6
CYY		 4985 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4986 nla_get_u32);
ea54fba2 4987 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4988 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4989 nla_get_u16);
4990 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4991 dot11MeshHWMPconfirmationInterval,
4992 1, 65535, mask,
728b19e5 4993 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4994 nla_get_u16);
3b1c5a53
MP		 4995 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4996 NL80211_MESH_POWER_ACTIVE,
4997 NL80211_MESH_POWER_MAX,
4998 mask, NL80211_MESHCONF_POWER_MODE,
4999 nla_get_u32);
5000 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5001 0, 65535, mask,
5002 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5003 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5004 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5005 nla_get_u32);
bd90fdcc
JB		 5006 if (mask_out)
5007 *mask_out = mask;
c80d545d 5008
bd90fdcc
JB		 5009 return 0;
5010
5011#undef FILL_IN_MESH_PARAM_IF_SET
5012}
5013
c80d545d
JC		 5014static int nl80211_parse_mesh_setup(struct genl_info *info,
5015 struct mesh_setup *setup)
5016{
bb2798d4 5017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5018 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5019
5020 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5021 return -EINVAL;
5022 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5023 info->attrs[NL80211_ATTR_MESH_SETUP],
5024 nl80211_mesh_setup_params_policy))
5025 return -EINVAL;
5026
d299a1f2
JC		 5027 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5028 setup->sync_method =
5029 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5030 IEEE80211_SYNC_METHOD_VENDOR :
5031 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5032
c80d545d
JC		 5033 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5034 setup->path_sel_proto =
5035 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5036 IEEE80211_PATH_PROTOCOL_VENDOR :
5037 IEEE80211_PATH_PROTOCOL_HWMP;
5038
5039 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5040 setup->path_metric =
5041 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5042 IEEE80211_PATH_METRIC_VENDOR :
5043 IEEE80211_PATH_METRIC_AIRTIME;
5044
581a8b0f
JC		 5045
5046 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5047 struct nlattr *ieattr =
581a8b0f 5048 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5049 if (!is_valid_ie_attr(ieattr))
5050 return -EINVAL;
581a8b0f
JC		 5051 setup->ie = nla_data(ieattr);
5052 setup->ie_len = nla_len(ieattr);
c80d545d 5053 }
bb2798d4
TP		 5054 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5055 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5056 return -EINVAL;
5057 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5058 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5059 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5060 if (setup->is_secure)
5061 setup->user_mpm = true;
c80d545d 5062
6e16d90b
CT		 5063 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5064 if (!setup->user_mpm)
5065 return -EINVAL;
5066 setup->auth_id =
5067 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5068 }
5069
c80d545d
JC		 5070 return 0;
5071}
5072
24bdd9f4 5073static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5074 struct genl_info *info)
bd90fdcc
JB		 5075{
5076 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5077 struct net_device *dev = info->user_ptr[1];
29cbe68c 5078 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5079 struct mesh_config cfg;
5080 u32 mask;
5081 int err;
5082
29cbe68c
JB		 5083 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5084 return -EOPNOTSUPP;
5085
24bdd9f4 5086 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5087 return -EOPNOTSUPP;
5088
24bdd9f4 5089 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5090 if (err)
5091 return err;
5092
29cbe68c
JB		 5093 wdev_lock(wdev);
5094 if (!wdev->mesh_id_len)
5095 err = -ENOLINK;
5096
5097 if (!err)
e35e4d28 5098 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5099
5100 wdev_unlock(wdev);
5101
5102 return err;
93da9cc1 5103}
5104
f130347c
LR		 5105static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5106{
458f4f9e 5107 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5108 struct sk_buff *msg;
5109 void *hdr = NULL;
5110 struct nlattr *nl_reg_rules;
5111 unsigned int i;
f130347c
LR		 5112
5113 if (!cfg80211_regdomain)
5fe231e8 5114 return -EINVAL;
f130347c 5115
fd2120ca 5116 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5117 if (!msg)
5118 return -ENOBUFS;
f130347c 5119
15e47304 5120 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5121 NL80211_CMD_GET_REG);
5122 if (!hdr)
efe1cf0c 5123 goto put_failure;
f130347c 5124
57b5ce07
LR		 5125 if (reg_last_request_cell_base() &&
5126 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5127 NL80211_USER_REG_HINT_CELL_BASE))
5128 goto nla_put_failure;
5129
458f4f9e
JB		 5130 rcu_read_lock();
5131 regdom = rcu_dereference(cfg80211_regdomain);
5132
5133 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5134 (regdom->dfs_region &&
5135 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5136 goto nla_put_failure_rcu;
5137
f130347c
LR		 5138 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5139 if (!nl_reg_rules)
458f4f9e 5140 goto nla_put_failure_rcu;
f130347c 5141
458f4f9e 5142 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5143 struct nlattr *nl_reg_rule;
5144 const struct ieee80211_reg_rule *reg_rule;
5145 const struct ieee80211_freq_range *freq_range;
5146 const struct ieee80211_power_rule *power_rule;
97524820 5147 unsigned int max_bandwidth_khz;
f130347c 5148
458f4f9e 5149 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5150 freq_range = &reg_rule->freq_range;
5151 power_rule = &reg_rule->power_rule;
5152
5153 nl_reg_rule = nla_nest_start(msg, i);
5154 if (!nl_reg_rule)
458f4f9e 5155 goto nla_put_failure_rcu;
f130347c 5156
97524820
JD		 5157 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5158 if (!max_bandwidth_khz)
5159 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5160 reg_rule);
5161
9360ffd1
DM		 5162 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5163 reg_rule->flags) ||
5164 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5165 freq_range->start_freq_khz) ||
5166 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5167 freq_range->end_freq_khz) ||
5168 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5169 max_bandwidth_khz) ||
9360ffd1
DM		 5170 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5171 power_rule->max_antenna_gain) ||
5172 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5173 power_rule->max_eirp) ||
5174 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5175 reg_rule->dfs_cac_ms))
458f4f9e 5176 goto nla_put_failure_rcu;
f130347c
LR		 5177
5178 nla_nest_end(msg, nl_reg_rule);
5179 }
458f4f9e 5180 rcu_read_unlock();
f130347c
LR		 5181
5182 nla_nest_end(msg, nl_reg_rules);
5183
5184 genlmsg_end(msg, hdr);
5fe231e8 5185 return genlmsg_reply(msg, info);
f130347c 5186
458f4f9e
JB		 5187nla_put_failure_rcu:
5188 rcu_read_unlock();
f130347c
LR		 5189nla_put_failure:
5190 genlmsg_cancel(msg, hdr);
efe1cf0c 5191put_failure:
d080e275 5192 nlmsg_free(msg);
5fe231e8 5193 return -EMSGSIZE;
f130347c
LR		 5194}
5195
b2e1b302
LR		 5196static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5197{
5198 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5199 struct nlattr *nl_reg_rule;
5200 char *alpha2 = NULL;
5201 int rem_reg_rules = 0, r = 0;
5202 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5203 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5204 struct ieee80211_regdomain *rd = NULL;
5205
5206 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5207 return -EINVAL;
5208
5209 if (!info->attrs[NL80211_ATTR_REG_RULES])
5210 return -EINVAL;
5211
5212 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5213
8b60b078
LR		 5214 if (info->attrs[NL80211_ATTR_DFS_REGION])
5215 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5216
b2e1b302 5217 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5218 rem_reg_rules) {
b2e1b302
LR		 5219 num_rules++;
5220 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5221 return -EINVAL;
b2e1b302
LR		 5222 }
5223
e438768f
LR		 5224 if (!reg_is_valid_request(alpha2))
5225 return -EINVAL;
5226
b2e1b302 5227 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5228 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5229
5230 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5231 if (!rd)
5232 return -ENOMEM;
b2e1b302
LR		 5233
5234 rd->n_reg_rules = num_rules;
5235 rd->alpha2[0] = alpha2[0];
5236 rd->alpha2[1] = alpha2[1];
5237
8b60b078
LR		 5238 /*
5239 * Disable DFS master mode if the DFS region was
5240 * not supported or known on this kernel.
5241 */
5242 if (reg_supported_dfs_region(dfs_region))
5243 rd->dfs_region = dfs_region;
5244
b2e1b302 5245 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5246 rem_reg_rules) {
ae811e21
JB		 5247 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5248 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5249 reg_rule_policy);
5250 if (r)
5251 goto bad_reg;
b2e1b302
LR		 5252 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5253 if (r)
5254 goto bad_reg;
5255
5256 rule_idx++;
5257
d0e18f83
LR		 5258 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5259 r = -EINVAL;
b2e1b302 5260 goto bad_reg;
d0e18f83 5261 }
b2e1b302
LR		 5262 }
5263
b2e1b302 5264 r = set_regdom(rd);
6913b49a 5265 /* set_regdom took ownership */
1a919318 5266 rd = NULL;
b2e1b302 5267
d2372b31 5268 bad_reg:
b2e1b302 5269 kfree(rd);
d0e18f83 5270 return r;
b2e1b302
LR		 5271}
5272
83f5e2cf
JB		 5273static int validate_scan_freqs(struct nlattr *freqs)
5274{
5275 struct nlattr *attr1, *attr2;
5276 int n_channels = 0, tmp1, tmp2;
5277
5278 nla_for_each_nested(attr1, freqs, tmp1) {
5279 n_channels++;
5280 /*
5281 * Some hardware has a limited channel list for
5282 * scanning, and it is pretty much nonsensical
5283 * to scan for a channel twice, so disallow that
5284 * and don't require drivers to check that the
5285 * channel list they get isn't longer than what
5286 * they can scan, as long as they can scan all
5287 * the channels they registered at once.
5288 */
5289 nla_for_each_nested(attr2, freqs, tmp2)
5290 if (attr1 != attr2 &&
5291 nla_get_u32(attr1) == nla_get_u32(attr2))
5292 return 0;
5293 }
5294
5295 return n_channels;
5296}
5297
2a519311
JB		 5298static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5299{
4c476991 5300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5301 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5302 struct cfg80211_scan_request *request;
2a519311
JB		 5303 struct nlattr *attr;
5304 struct wiphy *wiphy;
83f5e2cf 5305 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5306 size_t ie_len;
2a519311 5307
f4a11bb0
JB		 5308 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5309 return -EINVAL;
5310
79c97e97 5311 wiphy = &rdev->wiphy;
2a519311 5312
4c476991
JB		 5313 if (!rdev->ops->scan)
5314 return -EOPNOTSUPP;
2a519311 5315
f9d15d16 5316 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5317 err = -EBUSY;
5318 goto unlock;
5319 }
2a519311
JB		 5320
5321 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5322 n_channels = validate_scan_freqs(
5323 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5324 if (!n_channels) {
5325 err = -EINVAL;
5326 goto unlock;
5327 }
2a519311 5328 } else {
bdfbec2d 5329 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5330 }
5331
5332 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5333 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5334 n_ssids++;
5335
f9f47529
JB		 5336 if (n_ssids > wiphy->max_scan_ssids) {
5337 err = -EINVAL;
5338 goto unlock;
5339 }
2a519311 5340
70692ad2
JM		 5341 if (info->attrs[NL80211_ATTR_IE])
5342 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5343 else
5344 ie_len = 0;
5345
f9f47529
JB		 5346 if (ie_len > wiphy->max_scan_ie_len) {
5347 err = -EINVAL;
5348 goto unlock;
5349 }
18a83659 5350
2a519311 5351 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5352 + sizeof(*request->ssids) * n_ssids
5353 + sizeof(*request->channels) * n_channels
70692ad2 5354 + ie_len, GFP_KERNEL);
f9f47529
JB		 5355 if (!request) {
5356 err = -ENOMEM;
5357 goto unlock;
5358 }
2a519311 5359
2a519311 5360 if (n_ssids)
5ba63533 5361 request->ssids = (void *)&request->channels[n_channels];
2a519311 5362 request->n_ssids = n_ssids;
70692ad2
JM		 5363 if (ie_len) {
5364 if (request->ssids)
5365 request->ie = (void *)(request->ssids + n_ssids);
5366 else
5367 request->ie = (void *)(request->channels + n_channels);
5368 }
2a519311 5369
584991dc 5370 i = 0;
2a519311
JB		 5371 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5372 /* user specified, bail out if channel not found */
2a519311 5373 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5374 struct ieee80211_channel *chan;
5375
5376 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5377
5378 if (!chan) {
2a519311
JB		 5379 err = -EINVAL;
5380 goto out_free;
5381 }
584991dc
JB		 5382
5383 /* ignore disabled channels */
5384 if (chan->flags & IEEE80211_CHAN_DISABLED)
5385 continue;
5386
5387 request->channels[i] = chan;
2a519311
JB		 5388 i++;
5389 }
5390 } else {
34850ab2
JB		 5391 enum ieee80211_band band;
5392
2a519311 5393 /* all channels */
2a519311
JB		 5394 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5395 int j;
5396 if (!wiphy->bands[band])
5397 continue;
5398 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5399 struct ieee80211_channel *chan;
5400
5401 chan = &wiphy->bands[band]->channels[j];
5402
5403 if (chan->flags & IEEE80211_CHAN_DISABLED)
5404 continue;
5405
5406 request->channels[i] = chan;
2a519311
JB		 5407 i++;
5408 }
5409 }
5410 }
5411
584991dc
JB		 5412 if (!i) {
5413 err = -EINVAL;
5414 goto out_free;
5415 }
5416
5417 request->n_channels = i;
5418
2a519311
JB		 5419 i = 0;
5420 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5421 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5422 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5423 err = -EINVAL;
5424 goto out_free;
5425 }
57a27e1d 5426 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5427 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5428 i++;
5429 }
5430 }
5431
70692ad2
JM		 5432 if (info->attrs[NL80211_ATTR_IE]) {
5433 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5434 memcpy((void *)request->ie,
5435 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5436 request->ie_len);
5437 }
5438
34850ab2 5439 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5440 if (wiphy->bands[i])
5441 request->rates[i] =
5442 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5443
5444 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5445 nla_for_each_nested(attr,
5446 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5447 tmp) {
5448 enum ieee80211_band band = nla_type(attr);
5449
84404623 5450 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5451 err = -EINVAL;
5452 goto out_free;
5453 }
1b09cd82
FF		 5454
5455 if (!wiphy->bands[band])
5456 continue;
5457
34850ab2
JB		 5458 err = ieee80211_get_ratemask(wiphy->bands[band],
5459 nla_data(attr),
5460 nla_len(attr),
5461 &request->rates[band]);
5462 if (err)
5463 goto out_free;
5464 }
5465 }
5466
46856bbf 5467 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5468 request->flags = nla_get_u32(
5469 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5470 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5471 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5472 err = -EOPNOTSUPP;
5473 goto out_free;
5474 }
5475 }
ed473771 5476
e9f935e3
RM		 5477 request->no_cck =
5478 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5479
fd014284 5480 request->wdev = wdev;
79c97e97 5481 request->wiphy = &rdev->wiphy;
15d6030b 5482 request->scan_start = jiffies;
2a519311 5483
79c97e97 5484 rdev->scan_req = request;
e35e4d28 5485 err = rdev_scan(rdev, request);
2a519311 5486
463d0183 5487 if (!err) {
fd014284
JB		 5488 nl80211_send_scan_start(rdev, wdev);
5489 if (wdev->netdev)
5490 dev_hold(wdev->netdev);
4c476991 5491 } else {
2a519311 5492 out_free:
79c97e97 5493 rdev->scan_req = NULL;
2a519311
JB		 5494 kfree(request);
5495 }
3b85875a 5496
f9f47529 5497 unlock:
2a519311
JB		 5498 return err;
5499}
5500
807f8a8c
LC		 5501static int nl80211_start_sched_scan(struct sk_buff *skb,
5502 struct genl_info *info)
5503{
5504 struct cfg80211_sched_scan_request *request;
5505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5506 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5507 struct nlattr *attr;
5508 struct wiphy *wiphy;
a1f1c21c 5509 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5510 u32 interval;
807f8a8c
LC		 5511 enum ieee80211_band band;
5512 size_t ie_len;
a1f1c21c 5513 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5514 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5515
5516 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5517 !rdev->ops->sched_scan_start)
5518 return -EOPNOTSUPP;
5519
5520 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5521 return -EINVAL;
5522
bbe6ad6d
LC		 5523 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5524 return -EINVAL;
5525
5526 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5527 if (interval == 0)
5528 return -EINVAL;
5529
807f8a8c
LC		 5530 wiphy = &rdev->wiphy;
5531
5532 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5533 n_channels = validate_scan_freqs(
5534 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5535 if (!n_channels)
5536 return -EINVAL;
5537 } else {
bdfbec2d 5538 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5539 }
5540
5541 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5542 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5543 tmp)
5544 n_ssids++;
5545
93b6aa69 5546 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5547 return -EINVAL;
5548
ea73cbce
JB		 5549 /*
5550 * First, count the number of 'real' matchsets. Due to an issue with
5551 * the old implementation, matchsets containing only the RSSI attribute
5552 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5553 * RSSI for all matchsets, rather than their own matchset for reporting
5554 * all APs with a strong RSSI. This is needed to be compatible with
5555 * older userspace that treated a matchset with only the RSSI as the
5556 * global RSSI for all other matchsets - if there are other matchsets.
5557 */
5558 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5559 nla_for_each_nested(attr,
5560 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5561 tmp) {
5562 struct nlattr *rssi;
5563
5564 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5565 nla_data(attr), nla_len(attr),
5566 nl80211_match_policy);
5567 if (err)
5568 return err;
5569 /* add other standalone attributes here */
5570 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5571 n_match_sets++;
5572 continue;
5573 }
5574 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5575 if (rssi)
5576 default_match_rssi = nla_get_s32(rssi);
5577 }
5578 }
5579
5580 /* However, if there's no other matchset, add the RSSI one */
5581 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5582 n_match_sets = 1;
a1f1c21c
LC		 5583
5584 if (n_match_sets > wiphy->max_match_sets)
5585 return -EINVAL;
5586
807f8a8c
LC		 5587 if (info->attrs[NL80211_ATTR_IE])
5588 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5589 else
5590 ie_len = 0;
5591
5a865bad 5592 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5593 return -EINVAL;
5594
c10841ca
LC		 5595 if (rdev->sched_scan_req) {
5596 err = -EINPROGRESS;
5597 goto out;
5598 }
5599
807f8a8c 5600 request = kzalloc(sizeof(*request)
a2cd43c5 5601 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5602 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5603 + sizeof(*request->channels) * n_channels
807f8a8c 5604 + ie_len, GFP_KERNEL);
c10841ca
LC		 5605 if (!request) {
5606 err = -ENOMEM;
5607 goto out;
5608 }
807f8a8c
LC		 5609
5610 if (n_ssids)
5611 request->ssids = (void *)&request->channels[n_channels];
5612 request->n_ssids = n_ssids;
5613 if (ie_len) {
5614 if (request->ssids)
5615 request->ie = (void *)(request->ssids + n_ssids);
5616 else
5617 request->ie = (void *)(request->channels + n_channels);
5618 }
5619
a1f1c21c
LC		 5620 if (n_match_sets) {
5621 if (request->ie)
5622 request->match_sets = (void *)(request->ie + ie_len);
5623 else if (request->ssids)
5624 request->match_sets =
5625 (void *)(request->ssids + n_ssids);
5626 else
5627 request->match_sets =
5628 (void *)(request->channels + n_channels);
5629 }
5630 request->n_match_sets = n_match_sets;
5631
807f8a8c
LC		 5632 i = 0;
5633 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5634 /* user specified, bail out if channel not found */
5635 nla_for_each_nested(attr,
5636 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5637 tmp) {
5638 struct ieee80211_channel *chan;
5639
5640 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5641
5642 if (!chan) {
5643 err = -EINVAL;
5644 goto out_free;
5645 }
5646
5647 /* ignore disabled channels */
5648 if (chan->flags & IEEE80211_CHAN_DISABLED)
5649 continue;
5650
5651 request->channels[i] = chan;
5652 i++;
5653 }
5654 } else {
5655 /* all channels */
5656 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5657 int j;
5658 if (!wiphy->bands[band])
5659 continue;
5660 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5661 struct ieee80211_channel *chan;
5662
5663 chan = &wiphy->bands[band]->channels[j];
5664
5665 if (chan->flags & IEEE80211_CHAN_DISABLED)
5666 continue;
5667
5668 request->channels[i] = chan;
5669 i++;
5670 }
5671 }
5672 }
5673
5674 if (!i) {
5675 err = -EINVAL;
5676 goto out_free;
5677 }
5678
5679 request->n_channels = i;
5680
5681 i = 0;
5682 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5683 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5684 tmp) {
57a27e1d 5685 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5686 err = -EINVAL;
5687 goto out_free;
5688 }
57a27e1d 5689 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5690 memcpy(request->ssids[i].ssid, nla_data(attr),
5691 nla_len(attr));
807f8a8c
LC		 5692 i++;
5693 }
5694 }
5695
a1f1c21c
LC		 5696 i = 0;
5697 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5698 nla_for_each_nested(attr,
5699 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5700 tmp) {
88e920b4 5701 struct nlattr *ssid, *rssi;
a1f1c21c 5702
ae811e21
JB		 5703 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5704 nla_data(attr), nla_len(attr),
5705 nl80211_match_policy);
5706 if (err)
5707 goto out_free;
4a4ab0d7 5708 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5709 if (ssid) {
ea73cbce
JB		 5710 if (WARN_ON(i >= n_match_sets)) {
5711 /* this indicates a programming error,
5712 * the loop above should have verified
5713 * things properly
5714 */
5715 err = -EINVAL;
5716 goto out_free;
5717 }
5718
a1f1c21c
LC		 5719 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5720 err = -EINVAL;
5721 goto out_free;
5722 }
5723 memcpy(request->match_sets[i].ssid.ssid,
5724 nla_data(ssid), nla_len(ssid));
5725 request->match_sets[i].ssid.ssid_len =
5726 nla_len(ssid);
ea73cbce
JB		 5727 /* special attribute - old implemenation w/a */
5728 request->match_sets[i].rssi_thold =
5729 default_match_rssi;
5730 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5731 if (rssi)
5732 request->match_sets[i].rssi_thold =
5733 nla_get_s32(rssi);
a1f1c21c
LC		 5734 }
5735 i++;
5736 }
ea73cbce
JB		 5737
5738 /* there was no other matchset, so the RSSI one is alone */
5739 if (i == 0)
5740 request->match_sets[0].rssi_thold = default_match_rssi;
5741
5742 request->min_rssi_thold = INT_MAX;
5743 for (i = 0; i < n_match_sets; i++)
5744 request->min_rssi_thold =
5745 min(request->match_sets[i].rssi_thold,
5746 request->min_rssi_thold);
5747 } else {
5748 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5749 }
5750
9900e484
JB		 5751 if (ie_len) {
5752 request->ie_len = ie_len;
807f8a8c
LC		 5753 memcpy((void *)request->ie,
5754 nla_data(info->attrs[NL80211_ATTR_IE]),
5755 request->ie_len);
5756 }
5757
46856bbf 5758 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5759 request->flags = nla_get_u32(
5760 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5761 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5762 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5763 err = -EOPNOTSUPP;
5764 goto out_free;
5765 }
5766 }
ed473771 5767
807f8a8c
LC		 5768 request->dev = dev;
5769 request->wiphy = &rdev->wiphy;
bbe6ad6d 5770 request->interval = interval;
15d6030b 5771 request->scan_start = jiffies;
807f8a8c 5772
e35e4d28 5773 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5774 if (!err) {
5775 rdev->sched_scan_req = request;
5776 nl80211_send_sched_scan(rdev, dev,
5777 NL80211_CMD_START_SCHED_SCAN);
5778 goto out;
5779 }
5780
5781out_free:
5782 kfree(request);
5783out:
5784 return err;
5785}
5786
5787static int nl80211_stop_sched_scan(struct sk_buff *skb,
5788 struct genl_info *info)
5789{
5790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5791
5792 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5793 !rdev->ops->sched_scan_stop)
5794 return -EOPNOTSUPP;
5795
5fe231e8 5796 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5797}
5798
04f39047
SW		 5799static int nl80211_start_radar_detection(struct sk_buff *skb,
5800 struct genl_info *info)
5801{
5802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5803 struct net_device *dev = info->user_ptr[1];
5804 struct wireless_dev *wdev = dev->ieee80211_ptr;
5805 struct cfg80211_chan_def chandef;
55f7435c 5806 enum nl80211_dfs_regions dfs_region;
31559f35 5807 unsigned int cac_time_ms;
04f39047
SW		 5808 int err;
5809
55f7435c
LR		 5810 dfs_region = reg_get_dfs_region(wdev->wiphy);
5811 if (dfs_region == NL80211_DFS_UNSET)
5812 return -EINVAL;
5813
04f39047
SW		 5814 err = nl80211_parse_chandef(rdev, info, &chandef);
5815 if (err)
5816 return err;
5817
ff311bc1
SW		 5818 if (netif_carrier_ok(dev))
5819 return -EBUSY;
5820
04f39047
SW		 5821 if (wdev->cac_started)
5822 return -EBUSY;
5823
2beb6dab
LC		 5824 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
5825 NL80211_IFTYPE_UNSPECIFIED);
04f39047
SW		 5826 if (err < 0)
5827 return err;
5828
5829 if (err == 0)
5830 return -EINVAL;
5831
fe7c3a1f 5832 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5833 return -EINVAL;
5834
5835 if (!rdev->ops->start_radar_detection)
5836 return -EOPNOTSUPP;
5837
31559f35
JD		 5838 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5839 if (WARN_ON(!cac_time_ms))
5840 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5841
5842 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5843 cac_time_ms);
04f39047 5844 if (!err) {
9e0e2961 5845 wdev->chandef = chandef;
04f39047
SW		 5846 wdev->cac_started = true;
5847 wdev->cac_start_time = jiffies;
31559f35 5848 wdev->cac_time_ms = cac_time_ms;
04f39047 5849 }
04f39047
SW		 5850 return err;
5851}
5852
16ef1fe2
SW		 5853static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5854{
5855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5856 struct net_device *dev = info->user_ptr[1];
5857 struct wireless_dev *wdev = dev->ieee80211_ptr;
5858 struct cfg80211_csa_settings params;
5859 /* csa_attrs is defined static to avoid waste of stack size - this
5860 * function is called under RTNL lock, so this should not be a problem.
5861 */
5862 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5863 u8 radar_detect_width = 0;
5864 int err;
ee4bc9e7 5865 bool need_new_beacon = false;
16ef1fe2
SW		 5866
5867 if (!rdev->ops->channel_switch ||
5868 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5869 return -EOPNOTSUPP;
5870
ee4bc9e7
SW		 5871 switch (dev->ieee80211_ptr->iftype) {
5872 case NL80211_IFTYPE_AP:
5873 case NL80211_IFTYPE_P2P_GO:
5874 need_new_beacon = true;
5875
5876 /* useless if AP is not running */
5877 if (!wdev->beacon_interval)
1ff79dfa 5878 return -ENOTCONN;
ee4bc9e7
SW		 5879 break;
5880 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 5881 if (!wdev->ssid_len)
5882 return -ENOTCONN;
5883 break;
c6da674a 5884 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 5885 if (!wdev->mesh_id_len)
5886 return -ENOTCONN;
ee4bc9e7
SW		 5887 break;
5888 default:
16ef1fe2 5889 return -EOPNOTSUPP;
ee4bc9e7 5890 }
16ef1fe2
SW		 5891
5892 memset(&params, 0, sizeof(params));
5893
5894 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5895 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5896 return -EINVAL;
5897
5898 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5899 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5900 return -EINVAL;
5901
5902 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5903
ee4bc9e7
SW		 5904 if (!need_new_beacon)
5905 goto skip_beacons;
5906
16ef1fe2
SW		 5907 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5908 if (err)
5909 return err;
5910
5911 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5912 info->attrs[NL80211_ATTR_CSA_IES],
5913 nl80211_policy);
5914 if (err)
5915 return err;
5916
5917 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5918 if (err)
5919 return err;
5920
5921 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5922 return -EINVAL;
5923
5924 params.counter_offset_beacon =
5925 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5926 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5927 return -EINVAL;
5928
5929 /* sanity check - counters should be the same */
5930 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5931 params.count)
5932 return -EINVAL;
5933
5934 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5935 params.counter_offset_presp =
5936 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5937 if (params.counter_offset_presp >=
5938 params.beacon_csa.probe_resp_len)
5939 return -EINVAL;
5940
5941 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5942 params.count)
5943 return -EINVAL;
5944 }
5945
ee4bc9e7 5946skip_beacons:
16ef1fe2
SW		 5947 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5948 if (err)
5949 return err;
5950
174e0cd2
IP		 5951 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
5952 wdev->iftype))
16ef1fe2
SW		 5953 return -EINVAL;
5954
2beb6dab
LC		 5955 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5956 &params.chandef,
5957 wdev->iftype);
5958 if (err < 0)
5959 return err;
5960
5961 if (err > 0) {
5962 radar_detect_width = BIT(params.chandef.width);
5963 params.radar_required = true;
16ef1fe2
SW		 5964 }
5965
73de86a3
LC		 5966 /* TODO: I left this here for now. With channel switch, the
5967 * verification is a bit more complicated, because we only do
5968 * it later when the channel switch really happens.
5969 */
16ef1fe2
SW		 5970 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5971 params.chandef.chan,
5972 CHAN_MODE_SHARED,
5973 radar_detect_width);
5974 if (err)
5975 return err;
5976
5977 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5978 params.block_tx = true;
5979
c56589ed
SW		 5980 wdev_lock(wdev);
5981 err = rdev_channel_switch(rdev, dev, &params);
5982 wdev_unlock(wdev);
5983
5984 return err;
16ef1fe2
SW		 5985}
5986
9720bb3a
JB		 5987static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5988 u32 seq, int flags,
2a519311 5989 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5990 struct wireless_dev *wdev,
5991 struct cfg80211_internal_bss *intbss)
2a519311 5992{
48ab905d 5993 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5994 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5995 void *hdr;
5996 struct nlattr *bss;
8cef2c9d 5997 bool tsf = false;
48ab905d
JB		 5998
5999 ASSERT_WDEV_LOCK(wdev);
2a519311 6000
15e47304 6001 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6002 NL80211_CMD_NEW_SCAN_RESULTS);
6003 if (!hdr)
6004 return -1;
6005
9720bb3a
JB		 6006 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6007
97990a06
JB		 6008 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6009 goto nla_put_failure;
6010 if (wdev->netdev &&
9360ffd1
DM		 6011 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6012 goto nla_put_failure;
97990a06
JB		 6013 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6014 goto nla_put_failure;
2a519311
JB		 6015
6016 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6017 if (!bss)
6018 goto nla_put_failure;
9360ffd1 6019 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6020 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6021 goto nla_put_failure;
9caf0364
JB		 6022
6023 rcu_read_lock();
6024 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6025 if (ies) {
6026 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6027 goto fail_unlock_rcu;
6028 tsf = true;
6029 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6030 ies->len, ies->data))
6031 goto fail_unlock_rcu;
9caf0364
JB		 6032 }
6033 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 6034 if (ies) {
6035 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6036 goto fail_unlock_rcu;
6037 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6038 ies->len, ies->data))
6039 goto fail_unlock_rcu;
9caf0364
JB		 6040 }
6041 rcu_read_unlock();
6042
9360ffd1
DM		 6043 if (res->beacon_interval &&
6044 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6045 goto nla_put_failure;
6046 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6047 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6048 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6049 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6050 jiffies_to_msecs(jiffies - intbss->ts)))
6051 goto nla_put_failure;
2a519311 6052
77965c97 6053 switch (rdev->wiphy.signal_type) {
2a519311 6054 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6055 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6056 goto nla_put_failure;
2a519311
JB		 6057 break;
6058 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6059 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6060 goto nla_put_failure;
2a519311
JB		 6061 break;
6062 default:
6063 break;
6064 }
6065
48ab905d 6066 switch (wdev->iftype) {
074ac8df 6067 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6068 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6069 if (intbss == wdev->current_bss &&
6070 nla_put_u32(msg, NL80211_BSS_STATUS,
6071 NL80211_BSS_STATUS_ASSOCIATED))
6072 goto nla_put_failure;
48ab905d
JB		 6073 break;
6074 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6075 if (intbss == wdev->current_bss &&
6076 nla_put_u32(msg, NL80211_BSS_STATUS,
6077 NL80211_BSS_STATUS_IBSS_JOINED))
6078 goto nla_put_failure;
48ab905d
JB		 6079 break;
6080 default:
6081 break;
6082 }
6083
2a519311
JB		 6084 nla_nest_end(msg, bss);
6085
6086 return genlmsg_end(msg, hdr);
6087
8cef2c9d
JB		 6088 fail_unlock_rcu:
6089 rcu_read_unlock();
2a519311
JB		 6090 nla_put_failure:
6091 genlmsg_cancel(msg, hdr);
6092 return -EMSGSIZE;
6093}
6094
97990a06 6095static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6096{
48ab905d 6097 struct cfg80211_registered_device *rdev;
2a519311 6098 struct cfg80211_internal_bss *scan;
48ab905d 6099 struct wireless_dev *wdev;
97990a06 6100 int start = cb->args[2], idx = 0;
2a519311
JB		 6101 int err;
6102
97990a06 6103 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6104 if (err)
6105 return err;
2a519311 6106
48ab905d
JB		 6107 wdev_lock(wdev);
6108 spin_lock_bh(&rdev->bss_lock);
6109 cfg80211_bss_expire(rdev);
6110
9720bb3a
JB		 6111 cb->seq = rdev->bss_generation;
6112
48ab905d 6113 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6114 if (++idx <= start)
6115 continue;
9720bb3a 6116 if (nl80211_send_bss(skb, cb,
2a519311 6117 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6118 rdev, wdev, scan) < 0) {
2a519311 6119 idx--;
67748893 6120 break;
2a519311
JB		 6121 }
6122 }
6123
48ab905d
JB		 6124 spin_unlock_bh(&rdev->bss_lock);
6125 wdev_unlock(wdev);
2a519311 6126
97990a06
JB		 6127 cb->args[2] = idx;
6128 nl80211_finish_wdev_dump(rdev);
2a519311 6129
67748893 6130 return skb->len;
2a519311
JB		 6131}
6132
15e47304 6133static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6134 int flags, struct net_device *dev,
6135 struct survey_info *survey)
6136{
6137 void *hdr;
6138 struct nlattr *infoattr;
6139
15e47304 6140 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6141 NL80211_CMD_NEW_SURVEY_RESULTS);
6142 if (!hdr)
6143 return -ENOMEM;
6144
9360ffd1
DM		 6145 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6146 goto nla_put_failure;
61fa713c
HS		 6147
6148 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6149 if (!infoattr)
6150 goto nla_put_failure;
6151
9360ffd1
DM		 6152 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6153 survey->channel->center_freq))
6154 goto nla_put_failure;
6155
6156 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6157 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6158 goto nla_put_failure;
6159 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6160 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6161 goto nla_put_failure;
6162 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6163 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6164 survey->channel_time))
6165 goto nla_put_failure;
6166 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6167 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6168 survey->channel_time_busy))
6169 goto nla_put_failure;
6170 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6171 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6172 survey->channel_time_ext_busy))
6173 goto nla_put_failure;
6174 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6175 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6176 survey->channel_time_rx))
6177 goto nla_put_failure;
6178 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6179 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6180 survey->channel_time_tx))
6181 goto nla_put_failure;
61fa713c
HS		 6182
6183 nla_nest_end(msg, infoattr);
6184
6185 return genlmsg_end(msg, hdr);
6186
6187 nla_put_failure:
6188 genlmsg_cancel(msg, hdr);
6189 return -EMSGSIZE;
6190}
6191
6192static int nl80211_dump_survey(struct sk_buff *skb,
6193 struct netlink_callback *cb)
6194{
6195 struct survey_info survey;
1b8ec87a 6196 struct cfg80211_registered_device *rdev;
97990a06
JB		 6197 struct wireless_dev *wdev;
6198 int survey_idx = cb->args[2];
61fa713c
HS		 6199 int res;
6200
1b8ec87a 6201 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6202 if (res)
6203 return res;
61fa713c 6204
97990a06
JB		 6205 if (!wdev->netdev) {
6206 res = -EINVAL;
6207 goto out_err;
6208 }
6209
1b8ec87a 6210 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6211 res = -EOPNOTSUPP;
6212 goto out_err;
6213 }
6214
6215 while (1) {
180cdc79
LR		 6216 struct ieee80211_channel *chan;
6217
1b8ec87a 6218 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6219 if (res == -ENOENT)
6220 break;
6221 if (res)
6222 goto out_err;
6223
180cdc79
LR		 6224 /* Survey without a channel doesn't make sense */
6225 if (!survey.channel) {
6226 res = -EINVAL;
6227 goto out;
6228 }
6229
1b8ec87a 6230 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6231 survey.channel->center_freq);
6232 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6233 survey_idx++;
6234 continue;
6235 }
6236
61fa713c 6237 if (nl80211_send_survey(skb,
15e47304 6238 NETLINK_CB(cb->skb).portid,
61fa713c 6239 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6240 wdev->netdev, &survey) < 0)
61fa713c
HS		 6241 goto out;
6242 survey_idx++;
6243 }
6244
6245 out:
97990a06 6246 cb->args[2] = survey_idx;
61fa713c
HS		 6247 res = skb->len;
6248 out_err:
1b8ec87a 6249 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6250 return res;
6251}
6252
b23aa676
SO		 6253static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6254{
6255 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6256 NL80211_WPA_VERSION_2));
6257}
6258
636a5d36
JM		 6259static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6260{
4c476991
JB		 6261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6262 struct net_device *dev = info->user_ptr[1];
19957bb3 6263 struct ieee80211_channel *chan;
e39e5b5e
JM		 6264 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6265 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6266 enum nl80211_auth_type auth_type;
fffd0934 6267 struct key_parse key;
d5cdfacb 6268 bool local_state_change;
636a5d36 6269
f4a11bb0
JB		 6270 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6271 return -EINVAL;
6272
6273 if (!info->attrs[NL80211_ATTR_MAC])
6274 return -EINVAL;
6275
1778092e
JM		 6276 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6277 return -EINVAL;
6278
19957bb3
JB		 6279 if (!info->attrs[NL80211_ATTR_SSID])
6280 return -EINVAL;
6281
6282 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6283 return -EINVAL;
6284
fffd0934
JB		 6285 err = nl80211_parse_key(info, &key);
6286 if (err)
6287 return err;
6288
6289 if (key.idx >= 0) {
e31b8213
JB		 6290 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6291 return -EINVAL;
fffd0934
JB		 6292 if (!key.p.key || !key.p.key_len)
6293 return -EINVAL;
6294 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6295 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6296 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6297 key.p.key_len != WLAN_KEY_LEN_WEP104))
6298 return -EINVAL;
6299 if (key.idx > 4)
6300 return -EINVAL;
6301 } else {
6302 key.p.key_len = 0;
6303 key.p.key = NULL;
6304 }
6305
afea0b7a
JB		 6306 if (key.idx >= 0) {
6307 int i;
6308 bool ok = false;
6309 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6310 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6311 ok = true;
6312 break;
6313 }
6314 }
4c476991
JB		 6315 if (!ok)
6316 return -EINVAL;
afea0b7a
JB		 6317 }
6318
4c476991
JB		 6319 if (!rdev->ops->auth)
6320 return -EOPNOTSUPP;
636a5d36 6321
074ac8df 6322 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6323 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6324 return -EOPNOTSUPP;
eec60b03 6325
19957bb3 6326 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6327 chan = nl80211_get_valid_chan(&rdev->wiphy,
6328 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6329 if (!chan)
4c476991 6330 return -EINVAL;
636a5d36 6331
19957bb3
JB		 6332 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6333 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6334
6335 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6336 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6337 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6338 }
6339
19957bb3 6340 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6341 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6342 return -EINVAL;
636a5d36 6343
e39e5b5e
JM		 6344 if (auth_type == NL80211_AUTHTYPE_SAE &&
6345 !info->attrs[NL80211_ATTR_SAE_DATA])
6346 return -EINVAL;
6347
6348 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6349 if (auth_type != NL80211_AUTHTYPE_SAE)
6350 return -EINVAL;
6351 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6352 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6353 /* need to include at least Auth Transaction and Status Code */
6354 if (sae_data_len < 4)
6355 return -EINVAL;
6356 }
6357
d5cdfacb
JM		 6358 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6359
95de817b
JB		 6360 /*
6361 * Since we no longer track auth state, ignore
6362 * requests to only change local state.
6363 */
6364 if (local_state_change)
6365 return 0;
6366
91bf9b26
JB		 6367 wdev_lock(dev->ieee80211_ptr);
6368 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6369 ssid, ssid_len, ie, ie_len,
6370 key.p.key, key.p.key_len, key.idx,
6371 sae_data, sae_data_len);
6372 wdev_unlock(dev->ieee80211_ptr);
6373 return err;
636a5d36
JM		 6374}
6375
c0692b8f
JB		 6376static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6377 struct genl_info *info,
3dc27d25
JB		 6378 struct cfg80211_crypto_settings *settings,
6379 int cipher_limit)
b23aa676 6380{
c0b2bbd8
JB		 6381 memset(settings, 0, sizeof(*settings));
6382
b23aa676
SO		 6383 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6384
c0692b8f
JB		 6385 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6386 u16 proto;
6387 proto = nla_get_u16(
6388 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6389 settings->control_port_ethertype = cpu_to_be16(proto);
6390 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6391 proto != ETH_P_PAE)
6392 return -EINVAL;
6393 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6394 settings->control_port_no_encrypt = true;
6395 } else
6396 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6397
b23aa676
SO		 6398 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6399 void *data;
6400 int len, i;
6401
6402 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6403 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6404 settings->n_ciphers_pairwise = len / sizeof(u32);
6405
6406 if (len % sizeof(u32))
6407 return -EINVAL;
6408
3dc27d25 6409 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6410 return -EINVAL;
6411
6412 memcpy(settings->ciphers_pairwise, data, len);
6413
6414 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6415 if (!cfg80211_supported_cipher_suite(
6416 &rdev->wiphy,
b23aa676
SO		 6417 settings->ciphers_pairwise[i]))
6418 return -EINVAL;
6419 }
6420
6421 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6422 settings->cipher_group =
6423 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6424 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6425 settings->cipher_group))
b23aa676
SO		 6426 return -EINVAL;
6427 }
6428
6429 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6430 settings->wpa_versions =
6431 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6432 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6433 return -EINVAL;
6434 }
6435
6436 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6437 void *data;
6d30240e 6438 int len;
b23aa676
SO		 6439
6440 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6441 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6442 settings->n_akm_suites = len / sizeof(u32);
6443
6444 if (len % sizeof(u32))
6445 return -EINVAL;
6446
1b9ca027
JM		 6447 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6448 return -EINVAL;
6449
b23aa676 6450 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6451 }
6452
6453 return 0;
6454}
6455
636a5d36
JM		 6456static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6457{
4c476991
JB		 6458 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6459 struct net_device *dev = info->user_ptr[1];
f444de05 6460 struct ieee80211_channel *chan;
f62fab73
JB		 6461 struct cfg80211_assoc_request req = {};
6462 const u8 *bssid, *ssid;
6463 int err, ssid_len = 0;
636a5d36 6464
f4a11bb0
JB		 6465 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6466 return -EINVAL;
6467
6468 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6469 !info->attrs[NL80211_ATTR_SSID] ||
6470 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6471 return -EINVAL;
6472
4c476991
JB		 6473 if (!rdev->ops->assoc)
6474 return -EOPNOTSUPP;
636a5d36 6475
074ac8df 6476 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6477 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6478 return -EOPNOTSUPP;
eec60b03 6479
19957bb3 6480 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6481
664834de
JM		 6482 chan = nl80211_get_valid_chan(&rdev->wiphy,
6483 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6484 if (!chan)
4c476991 6485 return -EINVAL;
636a5d36 6486
19957bb3
JB		 6487 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6488 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6489
6490 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6491 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6492 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6493 }
6494
dc6382ce 6495 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6496 enum nl80211_mfp mfp =
dc6382ce 6497 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6498 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6499 req.use_mfp = true;
4c476991
JB		 6500 else if (mfp != NL80211_MFP_NO)
6501 return -EINVAL;
dc6382ce
JM		 6502 }
6503
3e5d7649 6504 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6505 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6506
7e7c8926 6507 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6508 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6509
6510 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6511 memcpy(&req.ht_capa_mask,
6512 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6513 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6514
6515 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6516 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6517 return -EINVAL;
f62fab73
JB		 6518 memcpy(&req.ht_capa,
6519 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6520 sizeof(req.ht_capa));
7e7c8926
BG		 6521 }
6522
ee2aca34 6523 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6524 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6525
6526 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6527 memcpy(&req.vht_capa_mask,
6528 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6529 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6530
6531 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6532 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6533 return -EINVAL;
f62fab73
JB		 6534 memcpy(&req.vht_capa,
6535 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6536 sizeof(req.vht_capa));
ee2aca34
JB		 6537 }
6538
f62fab73 6539 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6540 if (!err) {
6541 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6542 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6543 ssid, ssid_len, &req);
91bf9b26
JB		 6544 wdev_unlock(dev->ieee80211_ptr);
6545 }
636a5d36 6546
636a5d36
JM		 6547 return err;
6548}
6549
6550static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6551{
4c476991
JB		 6552 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6553 struct net_device *dev = info->user_ptr[1];
19957bb3 6554 const u8 *ie = NULL, *bssid;
91bf9b26 6555 int ie_len = 0, err;
19957bb3 6556 u16 reason_code;
d5cdfacb 6557 bool local_state_change;
636a5d36 6558
f4a11bb0
JB		 6559 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6560 return -EINVAL;
6561
6562 if (!info->attrs[NL80211_ATTR_MAC])
6563 return -EINVAL;
6564
6565 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6566 return -EINVAL;
6567
4c476991
JB		 6568 if (!rdev->ops->deauth)
6569 return -EOPNOTSUPP;
636a5d36 6570
074ac8df 6571 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6572 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6573 return -EOPNOTSUPP;
eec60b03 6574
19957bb3 6575 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6576
19957bb3
JB		 6577 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6578 if (reason_code == 0) {
f4a11bb0 6579 /* Reason Code 0 is reserved */
4c476991 6580 return -EINVAL;
255e737e 6581 }
636a5d36
JM		 6582
6583 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6584 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6585 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6586 }
6587
d5cdfacb
JM		 6588 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6589
91bf9b26
JB		 6590 wdev_lock(dev->ieee80211_ptr);
6591 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6592 local_state_change);
6593 wdev_unlock(dev->ieee80211_ptr);
6594 return err;
636a5d36
JM		 6595}
6596
6597static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6598{
4c476991
JB		 6599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6600 struct net_device *dev = info->user_ptr[1];
19957bb3 6601 const u8 *ie = NULL, *bssid;
91bf9b26 6602 int ie_len = 0, err;
19957bb3 6603 u16 reason_code;
d5cdfacb 6604 bool local_state_change;
636a5d36 6605
f4a11bb0
JB		 6606 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6607 return -EINVAL;
6608
6609 if (!info->attrs[NL80211_ATTR_MAC])
6610 return -EINVAL;
6611
6612 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6613 return -EINVAL;
6614
4c476991
JB		 6615 if (!rdev->ops->disassoc)
6616 return -EOPNOTSUPP;
636a5d36 6617
074ac8df 6618 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6619 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6620 return -EOPNOTSUPP;
eec60b03 6621
19957bb3 6622 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6623
19957bb3
JB		 6624 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6625 if (reason_code == 0) {
f4a11bb0 6626 /* Reason Code 0 is reserved */
4c476991 6627 return -EINVAL;
255e737e 6628 }
636a5d36
JM		 6629
6630 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6631 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6632 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6633 }
6634
d5cdfacb
JM		 6635 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6636
91bf9b26
JB		 6637 wdev_lock(dev->ieee80211_ptr);
6638 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6639 local_state_change);
6640 wdev_unlock(dev->ieee80211_ptr);
6641 return err;
636a5d36
JM		 6642}
6643
dd5b4cc7
FF		 6644static bool
6645nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6646 int mcast_rate[IEEE80211_NUM_BANDS],
6647 int rateval)
6648{
6649 struct wiphy *wiphy = &rdev->wiphy;
6650 bool found = false;
6651 int band, i;
6652
6653 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6654 struct ieee80211_supported_band *sband;
6655
6656 sband = wiphy->bands[band];
6657 if (!sband)
6658 continue;
6659
6660 for (i = 0; i < sband->n_bitrates; i++) {
6661 if (sband->bitrates[i].bitrate == rateval) {
6662 mcast_rate[band] = i + 1;
6663 found = true;
6664 break;
6665 }
6666 }
6667 }
6668
6669 return found;
6670}
6671
04a773ad
JB		 6672static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6673{
4c476991
JB		 6674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6675 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6676 struct cfg80211_ibss_params ibss;
6677 struct wiphy *wiphy;
fffd0934 6678 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6679 int err;
6680
8e30bc55
JB		 6681 memset(&ibss, 0, sizeof(ibss));
6682
04a773ad
JB		 6683 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6684 return -EINVAL;
6685
683b6d3b 6686 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6687 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6688 return -EINVAL;
6689
8e30bc55
JB		 6690 ibss.beacon_interval = 100;
6691
6692 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6693 ibss.beacon_interval =
6694 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6695 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6696 return -EINVAL;
6697 }
6698
4c476991
JB		 6699 if (!rdev->ops->join_ibss)
6700 return -EOPNOTSUPP;
04a773ad 6701
4c476991
JB		 6702 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6703 return -EOPNOTSUPP;
04a773ad 6704
79c97e97 6705 wiphy = &rdev->wiphy;
04a773ad 6706
39193498 6707 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6708 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6709
6710 if (!is_valid_ether_addr(ibss.bssid))
6711 return -EINVAL;
6712 }
04a773ad
JB		 6713 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6714 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6715
6716 if (info->attrs[NL80211_ATTR_IE]) {
6717 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6718 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6719 }
6720
683b6d3b
JB		 6721 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6722 if (err)
6723 return err;
04a773ad 6724
174e0cd2
IP		 6725 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6726 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6727 return -EINVAL;
6728
2f301ab2 6729 switch (ibss.chandef.width) {
bf372645
SW		 6730 case NL80211_CHAN_WIDTH_5:
6731 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6732 case NL80211_CHAN_WIDTH_20_NOHT:
6733 break;
6734 case NL80211_CHAN_WIDTH_20:
6735 case NL80211_CHAN_WIDTH_40:
6736 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6737 break;
6738 default:
c04d6150 6739 return -EINVAL;
2f301ab2 6740 }
db9c64cf 6741
04a773ad 6742 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6743 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6744
fbd2c8dc
TP		 6745 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6746 u8 *rates =
6747 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6748 int n_rates =
6749 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6750 struct ieee80211_supported_band *sband =
683b6d3b 6751 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6752
34850ab2
JB		 6753 err = ieee80211_get_ratemask(sband, rates, n_rates,
6754 &ibss.basic_rates);
6755 if (err)
6756 return err;
fbd2c8dc 6757 }
dd5b4cc7 6758
803768f5
SW		 6759 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6760 memcpy(&ibss.ht_capa_mask,
6761 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6762 sizeof(ibss.ht_capa_mask));
6763
6764 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6765 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6766 return -EINVAL;
6767 memcpy(&ibss.ht_capa,
6768 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6769 sizeof(ibss.ht_capa));
6770 }
6771
dd5b4cc7
FF		 6772 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6773 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6774 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6775 return -EINVAL;
fbd2c8dc 6776
4c476991 6777 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6778 bool no_ht = false;
6779
4c476991 6780 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6781 info->attrs[NL80211_ATTR_KEYS],
6782 &no_ht);
4c476991
JB		 6783 if (IS_ERR(connkeys))
6784 return PTR_ERR(connkeys);
de7044ee 6785
3d9d1d66
JB		 6786 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6787 no_ht) {
de7044ee
SM		 6788 kfree(connkeys);
6789 return -EINVAL;
6790 }
4c476991 6791 }
04a773ad 6792
267335d6
AQ		 6793 ibss.control_port =
6794 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6795
5336fa88
SW		 6796 ibss.userspace_handles_dfs =
6797 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6798
4c476991 6799 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6800 if (err)
6801 kfree(connkeys);
04a773ad
JB		 6802 return err;
6803}
6804
6805static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6806{
4c476991
JB		 6807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6808 struct net_device *dev = info->user_ptr[1];
04a773ad 6809
4c476991
JB		 6810 if (!rdev->ops->leave_ibss)
6811 return -EOPNOTSUPP;
04a773ad 6812
4c476991
JB		 6813 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6814 return -EOPNOTSUPP;
04a773ad 6815
4c476991 6816 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6817}
6818
f4e583c8
AQ		 6819static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6820{
6821 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6822 struct net_device *dev = info->user_ptr[1];
6823 int mcast_rate[IEEE80211_NUM_BANDS];
6824 u32 nla_rate;
6825 int err;
6826
6827 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6828 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6829 return -EOPNOTSUPP;
6830
6831 if (!rdev->ops->set_mcast_rate)
6832 return -EOPNOTSUPP;
6833
6834 memset(mcast_rate, 0, sizeof(mcast_rate));
6835
6836 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6837 return -EINVAL;
6838
6839 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6840 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6841 return -EINVAL;
6842
6843 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6844
6845 return err;
6846}
6847
ad7e718c
JB		 6848static struct sk_buff *
6849__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6850 int approxlen, u32 portid, u32 seq,
6851 enum nl80211_commands cmd,
567ffc35
JB		 6852 enum nl80211_attrs attr,
6853 const struct nl80211_vendor_cmd_info *info,
6854 gfp_t gfp)
ad7e718c
JB		 6855{
6856 struct sk_buff *skb;
6857 void *hdr;
6858 struct nlattr *data;
6859
6860 skb = nlmsg_new(approxlen + 100, gfp);
6861 if (!skb)
6862 return NULL;
6863
6864 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6865 if (!hdr) {
6866 kfree_skb(skb);
6867 return NULL;
6868 }
6869
6870 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6871 goto nla_put_failure;
567ffc35
JB		 6872
6873 if (info) {
6874 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6875 info->vendor_id))
6876 goto nla_put_failure;
6877 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6878 info->subcmd))
6879 goto nla_put_failure;
6880 }
6881
ad7e718c
JB		 6882 data = nla_nest_start(skb, attr);
6883
6884 ((void **)skb->cb)[0] = rdev;
6885 ((void **)skb->cb)[1] = hdr;
6886 ((void **)skb->cb)[2] = data;
6887
6888 return skb;
6889
6890 nla_put_failure:
6891 kfree_skb(skb);
6892 return NULL;
6893}
f4e583c8 6894
e03ad6ea
JB		 6895struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6896 enum nl80211_commands cmd,
6897 enum nl80211_attrs attr,
6898 int vendor_event_idx,
6899 int approxlen, gfp_t gfp)
6900{
f26cbf40 6901 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 6902 const struct nl80211_vendor_cmd_info *info;
6903
6904 switch (cmd) {
6905 case NL80211_CMD_TESTMODE:
6906 if (WARN_ON(vendor_event_idx != -1))
6907 return NULL;
6908 info = NULL;
6909 break;
6910 case NL80211_CMD_VENDOR:
6911 if (WARN_ON(vendor_event_idx < 0 ||
6912 vendor_event_idx >= wiphy->n_vendor_events))
6913 return NULL;
6914 info = &wiphy->vendor_events[vendor_event_idx];
6915 break;
6916 default:
6917 WARN_ON(1);
6918 return NULL;
6919 }
6920
6921 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6922 cmd, attr, info, gfp);
6923}
6924EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6925
6926void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6927{
6928 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6929 void *hdr = ((void **)skb->cb)[1];
6930 struct nlattr *data = ((void **)skb->cb)[2];
6931 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6932
6933 nla_nest_end(skb, data);
6934 genlmsg_end(skb, hdr);
6935
6936 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6937 mcgrp = NL80211_MCGRP_VENDOR;
6938
6939 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6940 mcgrp, gfp);
6941}
6942EXPORT_SYMBOL(__cfg80211_send_event_skb);
6943
aff89a9b 6944#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6945static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6946{
4c476991 6947 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6948 struct wireless_dev *wdev =
6949 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6950 int err;
6951
fc73f11f
DS		 6952 if (!rdev->ops->testmode_cmd)
6953 return -EOPNOTSUPP;
6954
6955 if (IS_ERR(wdev)) {
6956 err = PTR_ERR(wdev);
6957 if (err != -EINVAL)
6958 return err;
6959 wdev = NULL;
6960 } else if (wdev->wiphy != &rdev->wiphy) {
6961 return -EINVAL;
6962 }
6963
aff89a9b
JB		 6964 if (!info->attrs[NL80211_ATTR_TESTDATA])
6965 return -EINVAL;
6966
ad7e718c 6967 rdev->cur_cmd_info = info;
fc73f11f 6968 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 6969 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6970 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 6971 rdev->cur_cmd_info = NULL;
aff89a9b 6972
aff89a9b
JB		 6973 return err;
6974}
6975
71063f0e
WYG		 6976static int nl80211_testmode_dump(struct sk_buff *skb,
6977 struct netlink_callback *cb)
6978{
00918d33 6979 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6980 int err;
6981 long phy_idx;
6982 void *data = NULL;
6983 int data_len = 0;
6984
5fe231e8
JB		 6985 rtnl_lock();
6986
71063f0e
WYG		 6987 if (cb->args[0]) {
6988 /*
6989 * 0 is a valid index, but not valid for args[0],
6990 * so we need to offset by 1.
6991 */
6992 phy_idx = cb->args[0] - 1;
6993 } else {
6994 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6995 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6996 nl80211_policy);
6997 if (err)
5fe231e8 6998 goto out_err;
00918d33 6999
2bd7e35d
JB		 7000 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7001 nl80211_fam.attrbuf);
7002 if (IS_ERR(rdev)) {
5fe231e8
JB		 7003 err = PTR_ERR(rdev);
7004 goto out_err;
00918d33 7005 }
2bd7e35d
JB		 7006 phy_idx = rdev->wiphy_idx;
7007 rdev = NULL;
2bd7e35d 7008
71063f0e
WYG		 7009 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7010 cb->args[1] =
7011 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7012 }
7013
7014 if (cb->args[1]) {
7015 data = nla_data((void *)cb->args[1]);
7016 data_len = nla_len((void *)cb->args[1]);
7017 }
7018
00918d33
JB		 7019 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7020 if (!rdev) {
5fe231e8
JB		 7021 err = -ENOENT;
7022 goto out_err;
71063f0e 7023 }
71063f0e 7024
00918d33 7025 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7026 err = -EOPNOTSUPP;
7027 goto out_err;
7028 }
7029
7030 while (1) {
15e47304 7031 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7032 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7033 NL80211_CMD_TESTMODE);
7034 struct nlattr *tmdata;
7035
cb35fba3
DC		 7036 if (!hdr)
7037 break;
7038
9360ffd1 7039 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7040 genlmsg_cancel(skb, hdr);
7041 break;
7042 }
7043
7044 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7045 if (!tmdata) {
7046 genlmsg_cancel(skb, hdr);
7047 break;
7048 }
e35e4d28 7049 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7050 nla_nest_end(skb, tmdata);
7051
7052 if (err == -ENOBUFS || err == -ENOENT) {
7053 genlmsg_cancel(skb, hdr);
7054 break;
7055 } else if (err) {
7056 genlmsg_cancel(skb, hdr);
7057 goto out_err;
7058 }
7059
7060 genlmsg_end(skb, hdr);
7061 }
7062
7063 err = skb->len;
7064 /* see above */
7065 cb->args[0] = phy_idx + 1;
7066 out_err:
5fe231e8 7067 rtnl_unlock();
71063f0e
WYG		 7068 return err;
7069}
aff89a9b
JB		 7070#endif
7071
b23aa676
SO		 7072static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7073{
4c476991
JB		 7074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7075 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7076 struct cfg80211_connect_params connect;
7077 struct wiphy *wiphy;
fffd0934 7078 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7079 int err;
7080
7081 memset(&connect, 0, sizeof(connect));
7082
7083 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7084 return -EINVAL;
7085
7086 if (!info->attrs[NL80211_ATTR_SSID] ||
7087 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7088 return -EINVAL;
7089
7090 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7091 connect.auth_type =
7092 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7093 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7094 NL80211_CMD_CONNECT))
b23aa676
SO		 7095 return -EINVAL;
7096 } else
7097 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7098
7099 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7100
c0692b8f 7101 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7102 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7103 if (err)
7104 return err;
b23aa676 7105
074ac8df 7106 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7107 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7108 return -EOPNOTSUPP;
b23aa676 7109
79c97e97 7110 wiphy = &rdev->wiphy;
b23aa676 7111
4486ea98
BS		 7112 connect.bg_scan_period = -1;
7113 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7114 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7115 connect.bg_scan_period =
7116 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7117 }
7118
b23aa676
SO		 7119 if (info->attrs[NL80211_ATTR_MAC])
7120 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7121 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7122 connect.bssid_hint =
7123 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7124 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7125 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7126
7127 if (info->attrs[NL80211_ATTR_IE]) {
7128 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7129 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7130 }
7131
cee00a95
JM		 7132 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7133 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7134 if (connect.mfp != NL80211_MFP_REQUIRED &&
7135 connect.mfp != NL80211_MFP_NO)
7136 return -EINVAL;
7137 } else {
7138 connect.mfp = NL80211_MFP_NO;
7139 }
7140
b23aa676 7141 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7142 connect.channel = nl80211_get_valid_chan(
7143 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7144 if (!connect.channel)
1df4a510
JM		 7145 return -EINVAL;
7146 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7147 connect.channel_hint = nl80211_get_valid_chan(
7148 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7149 if (!connect.channel_hint)
4c476991 7150 return -EINVAL;
b23aa676
SO		 7151 }
7152
fffd0934
JB		 7153 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7154 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7155 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7156 if (IS_ERR(connkeys))
7157 return PTR_ERR(connkeys);
fffd0934
JB		 7158 }
7159
7e7c8926
BG		 7160 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7161 connect.flags |= ASSOC_REQ_DISABLE_HT;
7162
7163 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7164 memcpy(&connect.ht_capa_mask,
7165 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7166 sizeof(connect.ht_capa_mask));
7167
7168 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7169 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7170 kfree(connkeys);
7e7c8926 7171 return -EINVAL;
b4e4f47e 7172 }
7e7c8926
BG		 7173 memcpy(&connect.ht_capa,
7174 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7175 sizeof(connect.ht_capa));
7176 }
7177
ee2aca34
JB		 7178 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7179 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7180
7181 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7182 memcpy(&connect.vht_capa_mask,
7183 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7184 sizeof(connect.vht_capa_mask));
7185
7186 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7187 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7188 kfree(connkeys);
7189 return -EINVAL;
7190 }
7191 memcpy(&connect.vht_capa,
7192 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7193 sizeof(connect.vht_capa));
7194 }
7195
83739b03
JB		 7196 wdev_lock(dev->ieee80211_ptr);
7197 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7198 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7199 if (err)
7200 kfree(connkeys);
b23aa676
SO		 7201 return err;
7202}
7203
7204static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7205{
4c476991
JB		 7206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7207 struct net_device *dev = info->user_ptr[1];
b23aa676 7208 u16 reason;
83739b03 7209 int ret;
b23aa676
SO		 7210
7211 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7212 reason = WLAN_REASON_DEAUTH_LEAVING;
7213 else
7214 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7215
7216 if (reason == 0)
7217 return -EINVAL;
7218
074ac8df 7219 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7220 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7221 return -EOPNOTSUPP;
b23aa676 7222
83739b03
JB		 7223 wdev_lock(dev->ieee80211_ptr);
7224 ret = cfg80211_disconnect(rdev, dev, reason, true);
7225 wdev_unlock(dev->ieee80211_ptr);
7226 return ret;
b23aa676
SO		 7227}
7228
463d0183
JB		 7229static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7230{
4c476991 7231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7232 struct net *net;
7233 int err;
7234 u32 pid;
7235
7236 if (!info->attrs[NL80211_ATTR_PID])
7237 return -EINVAL;
7238
7239 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7240
463d0183 7241 net = get_net_ns_by_pid(pid);
4c476991
JB		 7242 if (IS_ERR(net))
7243 return PTR_ERR(net);
463d0183
JB		 7244
7245 err = 0;
7246
7247 /* check if anything to do */
4c476991
JB		 7248 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7249 err = cfg80211_switch_netns(rdev, net);
463d0183 7250
463d0183 7251 put_net(net);
463d0183
JB		 7252 return err;
7253}
7254
67fbb16b
SO		 7255static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7256{
4c476991 7257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7258 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7259 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7260 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7261 struct cfg80211_pmksa pmksa;
7262
7263 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7264
7265 if (!info->attrs[NL80211_ATTR_MAC])
7266 return -EINVAL;
7267
7268 if (!info->attrs[NL80211_ATTR_PMKID])
7269 return -EINVAL;
7270
67fbb16b
SO		 7271 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7272 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7273
074ac8df 7274 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7275 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7276 return -EOPNOTSUPP;
67fbb16b
SO		 7277
7278 switch (info->genlhdr->cmd) {
7279 case NL80211_CMD_SET_PMKSA:
7280 rdev_ops = rdev->ops->set_pmksa;
7281 break;
7282 case NL80211_CMD_DEL_PMKSA:
7283 rdev_ops = rdev->ops->del_pmksa;
7284 break;
7285 default:
7286 WARN_ON(1);
7287 break;
7288 }
7289
4c476991
JB		 7290 if (!rdev_ops)
7291 return -EOPNOTSUPP;
67fbb16b 7292
4c476991 7293 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7294}
7295
7296static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7297{
4c476991
JB		 7298 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7299 struct net_device *dev = info->user_ptr[1];
67fbb16b 7300
074ac8df 7301 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7302 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7303 return -EOPNOTSUPP;
67fbb16b 7304
4c476991
JB		 7305 if (!rdev->ops->flush_pmksa)
7306 return -EOPNOTSUPP;
67fbb16b 7307
e35e4d28 7308 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7309}
7310
109086ce
AN		 7311static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7312{
7313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7314 struct net_device *dev = info->user_ptr[1];
7315 u8 action_code, dialog_token;
df942e7b 7316 u32 peer_capability = 0;
109086ce
AN		 7317 u16 status_code;
7318 u8 *peer;
7319
7320 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7321 !rdev->ops->tdls_mgmt)
7322 return -EOPNOTSUPP;
7323
7324 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7325 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7326 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7327 !info->attrs[NL80211_ATTR_IE] ||
7328 !info->attrs[NL80211_ATTR_MAC])
7329 return -EINVAL;
7330
7331 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7332 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7333 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7334 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
df942e7b
SDU		 7335 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7336 peer_capability =
7337 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7338
e35e4d28 7339 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7340 dialog_token, status_code, peer_capability,
e35e4d28
HG		 7341 nla_data(info->attrs[NL80211_ATTR_IE]),
7342 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7343}
7344
7345static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7346{
7347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7348 struct net_device *dev = info->user_ptr[1];
7349 enum nl80211_tdls_operation operation;
7350 u8 *peer;
7351
7352 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7353 !rdev->ops->tdls_oper)
7354 return -EOPNOTSUPP;
7355
7356 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7357 !info->attrs[NL80211_ATTR_MAC])
7358 return -EINVAL;
7359
7360 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7361 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7362
e35e4d28 7363 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7364}
7365
9588bbd5
JM		 7366static int nl80211_remain_on_channel(struct sk_buff *skb,
7367 struct genl_info *info)
7368{
4c476991 7369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7370 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7371 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7372 struct sk_buff *msg;
7373 void *hdr;
7374 u64 cookie;
683b6d3b 7375 u32 duration;
9588bbd5
JM		 7376 int err;
7377
7378 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7379 !info->attrs[NL80211_ATTR_DURATION])
7380 return -EINVAL;
7381
7382 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7383
ebf348fc
JB		 7384 if (!rdev->ops->remain_on_channel ||
7385 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7386 return -EOPNOTSUPP;
7387
9588bbd5 7388 /*
ebf348fc
JB		 7389 * We should be on that channel for at least a minimum amount of
7390 * time (10ms) but no longer than the driver supports.
9588bbd5 7391 */
ebf348fc 7392 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7393 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7394 return -EINVAL;
7395
683b6d3b
JB		 7396 err = nl80211_parse_chandef(rdev, info, &chandef);
7397 if (err)
7398 return err;
9588bbd5
JM		 7399
7400 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7401 if (!msg)
7402 return -ENOMEM;
9588bbd5 7403
15e47304 7404 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7405 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7406 if (!hdr) {
7407 err = -ENOBUFS;
9588bbd5
JM		 7408 goto free_msg;
7409 }
7410
683b6d3b
JB		 7411 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7412 duration, &cookie);
9588bbd5
JM		 7413
7414 if (err)
7415 goto free_msg;
7416
9360ffd1
DM		 7417 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7418 goto nla_put_failure;
9588bbd5
JM		 7419
7420 genlmsg_end(msg, hdr);
4c476991
JB		 7421
7422 return genlmsg_reply(msg, info);
9588bbd5
JM		 7423
7424 nla_put_failure:
7425 err = -ENOBUFS;
7426 free_msg:
7427 nlmsg_free(msg);
9588bbd5
JM		 7428 return err;
7429}
7430
7431static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7432 struct genl_info *info)
7433{
4c476991 7434 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7435 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7436 u64 cookie;
9588bbd5
JM		 7437
7438 if (!info->attrs[NL80211_ATTR_COOKIE])
7439 return -EINVAL;
7440
4c476991
JB		 7441 if (!rdev->ops->cancel_remain_on_channel)
7442 return -EOPNOTSUPP;
9588bbd5 7443
9588bbd5
JM		 7444 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7445
e35e4d28 7446 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7447}
7448
13ae75b1
JM		 7449static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7450 u8 *rates, u8 rates_len)
7451{
7452 u8 i;
7453 u32 mask = 0;
7454
7455 for (i = 0; i < rates_len; i++) {
7456 int rate = (rates[i] & 0x7f) * 5;
7457 int ridx;
7458 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7459 struct ieee80211_rate *srate =
7460 &sband->bitrates[ridx];
7461 if (rate == srate->bitrate) {
7462 mask |= 1 << ridx;
7463 break;
7464 }
7465 }
7466 if (ridx == sband->n_bitrates)
7467 return 0; /* rate not found */
7468 }
7469
7470 return mask;
7471}
7472
24db78c0
SW		 7473static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7474 u8 *rates, u8 rates_len,
7475 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7476{
7477 u8 i;
7478
7479 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7480
7481 for (i = 0; i < rates_len; i++) {
7482 int ridx, rbit;
7483
7484 ridx = rates[i] / 8;
7485 rbit = BIT(rates[i] % 8);
7486
7487 /* check validity */
910570b5 7488 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7489 return false;
7490
7491 /* check availability */
7492 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7493 mcs[ridx] |= rbit;
7494 else
7495 return false;
7496 }
7497
7498 return true;
7499}
7500
204e35a9
JD		 7501static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7502{
7503 u16 mcs_mask = 0;
7504
7505 switch (vht_mcs_map) {
7506 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7507 break;
7508 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7509 mcs_mask = 0x00FF;
7510 break;
7511 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7512 mcs_mask = 0x01FF;
7513 break;
7514 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7515 mcs_mask = 0x03FF;
7516 break;
7517 default:
7518 break;
7519 }
7520
7521 return mcs_mask;
7522}
7523
7524static void vht_build_mcs_mask(u16 vht_mcs_map,
7525 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7526{
7527 u8 nss;
7528
7529 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7530 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7531 vht_mcs_map >>= 2;
7532 }
7533}
7534
7535static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7536 struct nl80211_txrate_vht *txrate,
7537 u16 mcs[NL80211_VHT_NSS_MAX])
7538{
7539 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7540 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7541 u8 i;
7542
7543 if (!sband->vht_cap.vht_supported)
7544 return false;
7545
7546 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7547
7548 /* Build vht_mcs_mask from VHT capabilities */
7549 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7550
7551 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7552 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7553 mcs[i] = txrate->mcs[i];
7554 else
7555 return false;
7556 }
7557
7558 return true;
7559}
7560
b54452b0 7561static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7562 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7563 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7564 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7565 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7566 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7567 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7568};
7569
7570static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7571 struct genl_info *info)
7572{
7573 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7575 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7576 int rem, i;
7577 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7578 struct nlattr *tx_rates;
7579 struct ieee80211_supported_band *sband;
204e35a9 7580 u16 vht_tx_mcs_map;
13ae75b1 7581
4c476991
JB		 7582 if (!rdev->ops->set_bitrate_mask)
7583 return -EOPNOTSUPP;
13ae75b1
JM		 7584
7585 memset(&mask, 0, sizeof(mask));
7586 /* Default to all rates enabled */
7587 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7588 sband = rdev->wiphy.bands[i];
7869303b
JD		 7589
7590 if (!sband)
7591 continue;
7592
7593 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7594 memcpy(mask.control[i].ht_mcs,
7869303b 7595 sband->ht_cap.mcs.rx_mask,
d1e33e65 7596 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7597
7598 if (!sband->vht_cap.vht_supported)
7599 continue;
7600
7601 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7602 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7603 }
7604
b9243ab0
JD		 7605 /* if no rates are given set it back to the defaults */
7606 if (!info->attrs[NL80211_ATTR_TX_RATES])
7607 goto out;
7608
13ae75b1
JM		 7609 /*
7610 * The nested attribute uses enum nl80211_band as the index. This maps
7611 * directly to the enum ieee80211_band values used in cfg80211.
7612 */
24db78c0 7613 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7614 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7615 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7616 int err;
7617
4c476991
JB		 7618 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7619 return -EINVAL;
13ae75b1 7620 sband = rdev->wiphy.bands[band];
4c476991
JB		 7621 if (sband == NULL)
7622 return -EINVAL;
ae811e21
JB		 7623 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7624 nla_len(tx_rates), nl80211_txattr_policy);
7625 if (err)
7626 return err;
13ae75b1
JM		 7627 if (tb[NL80211_TXRATE_LEGACY]) {
7628 mask.control[band].legacy = rateset_to_mask(
7629 sband,
7630 nla_data(tb[NL80211_TXRATE_LEGACY]),
7631 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7632 if ((mask.control[band].legacy == 0) &&
7633 nla_len(tb[NL80211_TXRATE_LEGACY]))
7634 return -EINVAL;
24db78c0 7635 }
d1e33e65 7636 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7637 if (!ht_rateset_to_mask(
7638 sband,
d1e33e65
JD		 7639 nla_data(tb[NL80211_TXRATE_HT]),
7640 nla_len(tb[NL80211_TXRATE_HT]),
7641 mask.control[band].ht_mcs))
24db78c0
SW		 7642 return -EINVAL;
7643 }
204e35a9
JD		 7644 if (tb[NL80211_TXRATE_VHT]) {
7645 if (!vht_set_mcs_mask(
7646 sband,
7647 nla_data(tb[NL80211_TXRATE_VHT]),
7648 mask.control[band].vht_mcs))
7649 return -EINVAL;
7650 }
0b9323f6
JD		 7651 if (tb[NL80211_TXRATE_GI]) {
7652 mask.control[band].gi =
7653 nla_get_u8(tb[NL80211_TXRATE_GI]);
7654 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7655 return -EINVAL;
7656 }
24db78c0
SW		 7657
7658 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7659 /* don't allow empty legacy rates if HT or VHT
7660 * are not even supported.
7661 */
7662 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7663 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7664 return -EINVAL;
7665
7666 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7667 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7668 goto out;
7669
7670 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7671 if (mask.control[band].vht_mcs[i])
7672 goto out;
24db78c0
SW		 7673
7674 /* legacy and mcs rates may not be both empty */
204e35a9 7675 return -EINVAL;
13ae75b1
JM		 7676 }
7677 }
7678
b9243ab0 7679out:
e35e4d28 7680 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7681}
7682
2e161f78 7683static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7684{
4c476991 7685 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7686 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7687 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7688
7689 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7690 return -EINVAL;
7691
2e161f78
JB		 7692 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7693 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7694
71bbc994
JB		 7695 switch (wdev->iftype) {
7696 case NL80211_IFTYPE_STATION:
7697 case NL80211_IFTYPE_ADHOC:
7698 case NL80211_IFTYPE_P2P_CLIENT:
7699 case NL80211_IFTYPE_AP:
7700 case NL80211_IFTYPE_AP_VLAN:
7701 case NL80211_IFTYPE_MESH_POINT:
7702 case NL80211_IFTYPE_P2P_GO:
98104fde 7703 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7704 break;
7705 default:
4c476991 7706 return -EOPNOTSUPP;
71bbc994 7707 }
026331c4
JM		 7708
7709 /* not much point in registering if we can't reply */
4c476991
JB		 7710 if (!rdev->ops->mgmt_tx)
7711 return -EOPNOTSUPP;
026331c4 7712
15e47304 7713 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7714 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7715 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7716}
7717
2e161f78 7718static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7719{
4c476991 7720 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7721 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7722 struct cfg80211_chan_def chandef;
026331c4 7723 int err;
d64d373f 7724 void *hdr = NULL;
026331c4 7725 u64 cookie;
e247bd90 7726 struct sk_buff *msg = NULL;
b176e629
AO		 7727 struct cfg80211_mgmt_tx_params params = {
7728 .dont_wait_for_ack =
7729 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7730 };
026331c4 7731
683b6d3b 7732 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7733 return -EINVAL;
7734
4c476991
JB		 7735 if (!rdev->ops->mgmt_tx)
7736 return -EOPNOTSUPP;
026331c4 7737
71bbc994 7738 switch (wdev->iftype) {
ea141b75
AQ		 7739 case NL80211_IFTYPE_P2P_DEVICE:
7740 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7741 return -EINVAL;
71bbc994
JB		 7742 case NL80211_IFTYPE_STATION:
7743 case NL80211_IFTYPE_ADHOC:
7744 case NL80211_IFTYPE_P2P_CLIENT:
7745 case NL80211_IFTYPE_AP:
7746 case NL80211_IFTYPE_AP_VLAN:
7747 case NL80211_IFTYPE_MESH_POINT:
7748 case NL80211_IFTYPE_P2P_GO:
7749 break;
7750 default:
4c476991 7751 return -EOPNOTSUPP;
71bbc994 7752 }
026331c4 7753
f7ca38df 7754 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7755 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7756 return -EINVAL;
b176e629 7757 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7758
7759 /*
7760 * We should wait on the channel for at least a minimum amount
7761 * of time (10ms) but no longer than the driver supports.
7762 */
b176e629
AO		 7763 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7764 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7765 return -EINVAL;
7766
f7ca38df
JB		 7767 }
7768
b176e629 7769 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7770
b176e629 7771 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7772 return -EINVAL;
7773
b176e629 7774 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7775
ea141b75
AQ		 7776 /* get the channel if any has been specified, otherwise pass NULL to
7777 * the driver. The latter will use the current one
7778 */
7779 chandef.chan = NULL;
7780 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7781 err = nl80211_parse_chandef(rdev, info, &chandef);
7782 if (err)
7783 return err;
7784 }
7785
b176e629 7786 if (!chandef.chan && params.offchan)
ea141b75 7787 return -EINVAL;
026331c4 7788
b176e629 7789 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7790 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7791 if (!msg)
7792 return -ENOMEM;
026331c4 7793
15e47304 7794 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7795 NL80211_CMD_FRAME);
cb35fba3
DC		 7796 if (!hdr) {
7797 err = -ENOBUFS;
e247bd90
JB		 7798 goto free_msg;
7799 }
026331c4 7800 }
e247bd90 7801
b176e629
AO		 7802 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7803 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7804 params.chan = chandef.chan;
7805 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7806 if (err)
7807 goto free_msg;
7808
e247bd90 7809 if (msg) {
9360ffd1
DM		 7810 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7811 goto nla_put_failure;
026331c4 7812
e247bd90
JB		 7813 genlmsg_end(msg, hdr);
7814 return genlmsg_reply(msg, info);
7815 }
7816
7817 return 0;
026331c4
JM		 7818
7819 nla_put_failure:
7820 err = -ENOBUFS;
7821 free_msg:
7822 nlmsg_free(msg);
026331c4
JM		 7823 return err;
7824}
7825
f7ca38df
JB		 7826static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7827{
7828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7829 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7830 u64 cookie;
7831
7832 if (!info->attrs[NL80211_ATTR_COOKIE])
7833 return -EINVAL;
7834
7835 if (!rdev->ops->mgmt_tx_cancel_wait)
7836 return -EOPNOTSUPP;
7837
71bbc994
JB		 7838 switch (wdev->iftype) {
7839 case NL80211_IFTYPE_STATION:
7840 case NL80211_IFTYPE_ADHOC:
7841 case NL80211_IFTYPE_P2P_CLIENT:
7842 case NL80211_IFTYPE_AP:
7843 case NL80211_IFTYPE_AP_VLAN:
7844 case NL80211_IFTYPE_P2P_GO:
98104fde 7845 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7846 break;
7847 default:
f7ca38df 7848 return -EOPNOTSUPP;
71bbc994 7849 }
f7ca38df
JB		 7850
7851 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7852
e35e4d28 7853 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7854}
7855
ffb9eb3d
KV		 7856static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7857{
4c476991 7858 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7859 struct wireless_dev *wdev;
4c476991 7860 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7861 u8 ps_state;
7862 bool state;
7863 int err;
7864
4c476991
JB		 7865 if (!info->attrs[NL80211_ATTR_PS_STATE])
7866 return -EINVAL;
ffb9eb3d
KV		 7867
7868 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7869
4c476991
JB		 7870 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7871 return -EINVAL;
ffb9eb3d
KV		 7872
7873 wdev = dev->ieee80211_ptr;
7874
4c476991
JB		 7875 if (!rdev->ops->set_power_mgmt)
7876 return -EOPNOTSUPP;
ffb9eb3d
KV		 7877
7878 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7879
7880 if (state == wdev->ps)
4c476991 7881 return 0;
ffb9eb3d 7882
e35e4d28 7883 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7884 if (!err)
7885 wdev->ps = state;
ffb9eb3d
KV		 7886 return err;
7887}
7888
7889static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7890{
4c476991 7891 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7892 enum nl80211_ps_state ps_state;
7893 struct wireless_dev *wdev;
4c476991 7894 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7895 struct sk_buff *msg;
7896 void *hdr;
7897 int err;
7898
ffb9eb3d
KV		 7899 wdev = dev->ieee80211_ptr;
7900
4c476991
JB		 7901 if (!rdev->ops->set_power_mgmt)
7902 return -EOPNOTSUPP;
ffb9eb3d
KV		 7903
7904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7905 if (!msg)
7906 return -ENOMEM;
ffb9eb3d 7907
15e47304 7908 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7909 NL80211_CMD_GET_POWER_SAVE);
7910 if (!hdr) {
4c476991 7911 err = -ENOBUFS;
ffb9eb3d
KV		 7912 goto free_msg;
7913 }
7914
7915 if (wdev->ps)
7916 ps_state = NL80211_PS_ENABLED;
7917 else
7918 ps_state = NL80211_PS_DISABLED;
7919
9360ffd1
DM		 7920 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7921 goto nla_put_failure;
ffb9eb3d
KV		 7922
7923 genlmsg_end(msg, hdr);
4c476991 7924 return genlmsg_reply(msg, info);
ffb9eb3d 7925
4c476991 7926 nla_put_failure:
ffb9eb3d 7927 err = -ENOBUFS;
4c476991 7928 free_msg:
ffb9eb3d 7929 nlmsg_free(msg);
ffb9eb3d
KV		 7930 return err;
7931}
7932
94e860f1
JB		 7933static const struct nla_policy
7934nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 7935 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7936 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7937 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7938 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7939 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7940 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7941};
7942
84f10708 7943static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7944 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7945{
7946 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 7947 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7948 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 7949
d9d8b019 7950 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7951 return -EINVAL;
7952
84f10708
TP		 7953 if (!rdev->ops->set_cqm_txe_config)
7954 return -EOPNOTSUPP;
7955
7956 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7957 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7958 return -EOPNOTSUPP;
7959
e35e4d28 7960 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7961}
7962
d6dc1a38
JO		 7963static int nl80211_set_cqm_rssi(struct genl_info *info,
7964 s32 threshold, u32 hysteresis)
7965{
4c476991 7966 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 7967 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7968 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 7969
7970 if (threshold > 0)
7971 return -EINVAL;
7972
1da5fcc8
JB		 7973 /* disabling - hysteresis should also be zero then */
7974 if (threshold == 0)
7975 hysteresis = 0;
d6dc1a38 7976
4c476991
JB		 7977 if (!rdev->ops->set_cqm_rssi_config)
7978 return -EOPNOTSUPP;
d6dc1a38 7979
074ac8df 7980 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7981 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7982 return -EOPNOTSUPP;
d6dc1a38 7983
e35e4d28 7984 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7985}
7986
7987static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7988{
7989 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7990 struct nlattr *cqm;
7991 int err;
7992
7993 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 7994 if (!cqm)
7995 return -EINVAL;
d6dc1a38
JO		 7996
7997 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7998 nl80211_attr_cqm_policy);
7999 if (err)
1da5fcc8 8000 return err;
d6dc1a38
JO		 8001
8002 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8003 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8004 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8005 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8006
1da5fcc8
JB		 8007 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8008 }
8009
8010 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8011 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8012 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8013 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8014 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8015 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8016
8017 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8018 }
8019
8020 return -EINVAL;
d6dc1a38
JO		 8021}
8022
29cbe68c
JB		 8023static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8024{
8025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8026 struct net_device *dev = info->user_ptr[1];
8027 struct mesh_config cfg;
c80d545d 8028 struct mesh_setup setup;
29cbe68c
JB		 8029 int err;
8030
8031 /* start with default */
8032 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8033 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8034
24bdd9f4 8035 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8036 /* and parse parameters if given */
24bdd9f4 8037 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8038 if (err)
8039 return err;
8040 }
8041
8042 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8043 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8044 return -EINVAL;
8045
c80d545d
JC		 8046 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8047 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8048
4bb62344
CYY		 8049 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8050 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8051 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8052 return -EINVAL;
8053
9bdbf04d
MP		 8054 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8055 setup.beacon_interval =
8056 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8057 if (setup.beacon_interval < 10 ||
8058 setup.beacon_interval > 10000)
8059 return -EINVAL;
8060 }
8061
8062 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8063 setup.dtim_period =
8064 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8065 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8066 return -EINVAL;
8067 }
8068
c80d545d
JC		 8069 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8070 /* parse additional setup parameters if given */
8071 err = nl80211_parse_mesh_setup(info, &setup);
8072 if (err)
8073 return err;
8074 }
8075
d37bb18a
TP		 8076 if (setup.user_mpm)
8077 cfg.auto_open_plinks = false;
8078
cc1d2806 8079 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8080 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8081 if (err)
8082 return err;
cc1d2806
JB		 8083 } else {
8084 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8085 setup.chandef.chan = NULL;
cc1d2806
JB		 8086 }
8087
ffb3cf30
AN		 8088 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8089 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8090 int n_rates =
8091 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8092 struct ieee80211_supported_band *sband;
8093
8094 if (!setup.chandef.chan)
8095 return -EINVAL;
8096
8097 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8098
8099 err = ieee80211_get_ratemask(sband, rates, n_rates,
8100 &setup.basic_rates);
8101 if (err)
8102 return err;
8103 }
8104
c80d545d 8105 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8106}
8107
8108static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8109{
8110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8111 struct net_device *dev = info->user_ptr[1];
8112
8113 return cfg80211_leave_mesh(rdev, dev);
8114}
8115
dfb89c56 8116#ifdef CONFIG_PM
bb92d199
AK		 8117static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8118 struct cfg80211_registered_device *rdev)
8119{
6abb9cb9 8120 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8121 struct nlattr *nl_pats, *nl_pat;
8122 int i, pat_len;
8123
6abb9cb9 8124 if (!wowlan->n_patterns)
bb92d199
AK		 8125 return 0;
8126
8127 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8128 if (!nl_pats)
8129 return -ENOBUFS;
8130
6abb9cb9 8131 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8132 nl_pat = nla_nest_start(msg, i + 1);
8133 if (!nl_pat)
8134 return -ENOBUFS;
6abb9cb9 8135 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8136 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8137 wowlan->patterns[i].mask) ||
50ac6607
AK		 8138 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8139 wowlan->patterns[i].pattern) ||
8140 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8141 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8142 return -ENOBUFS;
8143 nla_nest_end(msg, nl_pat);
8144 }
8145 nla_nest_end(msg, nl_pats);
8146
8147 return 0;
8148}
8149
2a0e047e
JB		 8150static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8151 struct cfg80211_wowlan_tcp *tcp)
8152{
8153 struct nlattr *nl_tcp;
8154
8155 if (!tcp)
8156 return 0;
8157
8158 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8159 if (!nl_tcp)
8160 return -ENOBUFS;
8161
8162 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8163 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8164 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8165 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8166 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8167 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8168 tcp->payload_len, tcp->payload) ||
8169 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8170 tcp->data_interval) ||
8171 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8172 tcp->wake_len, tcp->wake_data) ||
8173 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8174 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8175 return -ENOBUFS;
8176
8177 if (tcp->payload_seq.len &&
8178 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8179 sizeof(tcp->payload_seq), &tcp->payload_seq))
8180 return -ENOBUFS;
8181
8182 if (tcp->payload_tok.len &&
8183 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8184 sizeof(tcp->payload_tok) + tcp->tokens_size,
8185 &tcp->payload_tok))
8186 return -ENOBUFS;
8187
e248ad30
JB		 8188 nla_nest_end(msg, nl_tcp);
8189
2a0e047e
JB		 8190 return 0;
8191}
8192
ff1b6e69
JB		 8193static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8194{
8195 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8196 struct sk_buff *msg;
8197 void *hdr;
2a0e047e 8198 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8199
964dc9e2 8200 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8201 return -EOPNOTSUPP;
8202
6abb9cb9 8203 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8204 /* adjust size to have room for all the data */
6abb9cb9
JB		 8205 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8206 rdev->wiphy.wowlan_config->tcp->payload_len +
8207 rdev->wiphy.wowlan_config->tcp->wake_len +
8208 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8209 }
8210
8211 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8212 if (!msg)
8213 return -ENOMEM;
8214
15e47304 8215 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8216 NL80211_CMD_GET_WOWLAN);
8217 if (!hdr)
8218 goto nla_put_failure;
8219
6abb9cb9 8220 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8221 struct nlattr *nl_wowlan;
8222
8223 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8224 if (!nl_wowlan)
8225 goto nla_put_failure;
8226
6abb9cb9 8227 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8228 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8229 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8230 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8231 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8232 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8233 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8234 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8235 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8236 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8237 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8238 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8239 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8240 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8241 goto nla_put_failure;
2a0e047e 8242
bb92d199
AK		 8243 if (nl80211_send_wowlan_patterns(msg, rdev))
8244 goto nla_put_failure;
2a0e047e 8245
6abb9cb9
JB		 8246 if (nl80211_send_wowlan_tcp(msg,
8247 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8248 goto nla_put_failure;
8249
ff1b6e69
JB		 8250 nla_nest_end(msg, nl_wowlan);
8251 }
8252
8253 genlmsg_end(msg, hdr);
8254 return genlmsg_reply(msg, info);
8255
8256nla_put_failure:
8257 nlmsg_free(msg);
8258 return -ENOBUFS;
8259}
8260
2a0e047e
JB		 8261static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8262 struct nlattr *attr,
8263 struct cfg80211_wowlan *trig)
8264{
8265 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8266 struct cfg80211_wowlan_tcp *cfg;
8267 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8268 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8269 u32 size;
8270 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8271 int err, port;
8272
964dc9e2 8273 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8274 return -EINVAL;
8275
8276 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8277 nla_data(attr), nla_len(attr),
8278 nl80211_wowlan_tcp_policy);
8279 if (err)
8280 return err;
8281
8282 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8283 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8284 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8285 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8286 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8287 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8288 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8289 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8290 return -EINVAL;
8291
8292 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8293 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8294 return -EINVAL;
8295
8296 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8297 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8298 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8299 return -EINVAL;
8300
8301 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8302 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8303 return -EINVAL;
8304
8305 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8306 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8307 return -EINVAL;
8308
8309 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8310 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8311
8312 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8313 tokens_size = tokln - sizeof(*tok);
8314
8315 if (!tok->len || tokens_size % tok->len)
8316 return -EINVAL;
964dc9e2 8317 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8318 return -EINVAL;
964dc9e2 8319 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8320 return -EINVAL;
964dc9e2 8321 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8322 return -EINVAL;
964dc9e2 8323 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8324 return -EINVAL;
8325 if (tok->offset + tok->len > data_size)
8326 return -EINVAL;
8327 }
8328
8329 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8330 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8331 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8332 return -EINVAL;
8333 if (seq->len == 0 || seq->len > 4)
8334 return -EINVAL;
8335 if (seq->len + seq->offset > data_size)
8336 return -EINVAL;
8337 }
8338
8339 size = sizeof(*cfg);
8340 size += data_size;
8341 size += wake_size + wake_mask_size;
8342 size += tokens_size;
8343
8344 cfg = kzalloc(size, GFP_KERNEL);
8345 if (!cfg)
8346 return -ENOMEM;
8347 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8348 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8349 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8350 ETH_ALEN);
8351 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8352 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8353 else
8354 port = 0;
8355#ifdef CONFIG_INET
8356 /* allocate a socket and port for it and use it */
8357 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8358 IPPROTO_TCP, &cfg->sock, 1);
8359 if (err) {
8360 kfree(cfg);
8361 return err;
8362 }
8363 if (inet_csk_get_port(cfg->sock->sk, port)) {
8364 sock_release(cfg->sock);
8365 kfree(cfg);
8366 return -EADDRINUSE;
8367 }
8368 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8369#else
8370 if (!port) {
8371 kfree(cfg);
8372 return -EINVAL;
8373 }
8374 cfg->src_port = port;
8375#endif
8376
8377 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8378 cfg->payload_len = data_size;
8379 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8380 memcpy((void *)cfg->payload,
8381 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8382 data_size);
8383 if (seq)
8384 cfg->payload_seq = *seq;
8385 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8386 cfg->wake_len = wake_size;
8387 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8388 memcpy((void *)cfg->wake_data,
8389 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8390 wake_size);
8391 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8392 data_size + wake_size;
8393 memcpy((void *)cfg->wake_mask,
8394 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8395 wake_mask_size);
8396 if (tok) {
8397 cfg->tokens_size = tokens_size;
8398 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8399 }
8400
8401 trig->tcp = cfg;
8402
8403 return 0;
8404}
8405
ff1b6e69
JB		 8406static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8407{
8408 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8409 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8410 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8411 struct cfg80211_wowlan *ntrig;
964dc9e2 8412 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8413 int err, i;
6abb9cb9 8414 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8415
964dc9e2 8416 if (!wowlan)
ff1b6e69
JB		 8417 return -EOPNOTSUPP;
8418
ae33bd81
JB		 8419 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8420 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8421 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8422 goto set_wakeup;
8423 }
ff1b6e69
JB		 8424
8425 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8426 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8427 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8428 nl80211_wowlan_policy);
8429 if (err)
8430 return err;
8431
8432 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8433 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8434 return -EINVAL;
8435 new_triggers.any = true;
8436 }
8437
8438 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8439 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8440 return -EINVAL;
8441 new_triggers.disconnect = true;
8442 }
8443
8444 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8445 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8446 return -EINVAL;
8447 new_triggers.magic_pkt = true;
8448 }
8449
77dbbb13
JB		 8450 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8451 return -EINVAL;
8452
8453 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8454 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8455 return -EINVAL;
8456 new_triggers.gtk_rekey_failure = true;
8457 }
8458
8459 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8460 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8461 return -EINVAL;
8462 new_triggers.eap_identity_req = true;
8463 }
8464
8465 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8466 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8467 return -EINVAL;
8468 new_triggers.four_way_handshake = true;
8469 }
8470
8471 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8472 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8473 return -EINVAL;
8474 new_triggers.rfkill_release = true;
8475 }
8476
ff1b6e69
JB		 8477 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8478 struct nlattr *pat;
8479 int n_patterns = 0;
bb92d199 8480 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8481 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8482
8483 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8484 rem)
8485 n_patterns++;
8486 if (n_patterns > wowlan->n_patterns)
8487 return -EINVAL;
8488
8489 new_triggers.patterns = kcalloc(n_patterns,
8490 sizeof(new_triggers.patterns[0]),
8491 GFP_KERNEL);
8492 if (!new_triggers.patterns)
8493 return -ENOMEM;
8494
8495 new_triggers.n_patterns = n_patterns;
8496 i = 0;
8497
8498 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8499 rem) {
50ac6607
AK		 8500 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8501 nla_len(pat), NULL);
ff1b6e69 8502 err = -EINVAL;
50ac6607
AK		 8503 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8504 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8505 goto error;
50ac6607 8506 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8507 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8508 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8509 goto error;
8510 if (pat_len > wowlan->pattern_max_len ||
8511 pat_len < wowlan->pattern_min_len)
8512 goto error;
8513
50ac6607 8514 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8515 pkt_offset = 0;
8516 else
8517 pkt_offset = nla_get_u32(
50ac6607 8518 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8519 if (pkt_offset > wowlan->max_pkt_offset)
8520 goto error;
8521 new_triggers.patterns[i].pkt_offset = pkt_offset;
8522
ff1b6e69
JB		 8523 new_triggers.patterns[i].mask =
8524 kmalloc(mask_len + pat_len, GFP_KERNEL);
8525 if (!new_triggers.patterns[i].mask) {
8526 err = -ENOMEM;
8527 goto error;
8528 }
8529 new_triggers.patterns[i].pattern =
8530 new_triggers.patterns[i].mask + mask_len;
8531 memcpy(new_triggers.patterns[i].mask,
50ac6607 8532 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8533 mask_len);
8534 new_triggers.patterns[i].pattern_len = pat_len;
8535 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8536 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8537 pat_len);
8538 i++;
8539 }
8540 }
8541
2a0e047e
JB		 8542 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8543 err = nl80211_parse_wowlan_tcp(
8544 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8545 &new_triggers);
8546 if (err)
8547 goto error;
8548 }
8549
ae33bd81
JB		 8550 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8551 if (!ntrig) {
8552 err = -ENOMEM;
8553 goto error;
ff1b6e69 8554 }
ae33bd81 8555 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8556 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8557
ae33bd81 8558 set_wakeup:
6abb9cb9
JB		 8559 if (rdev->ops->set_wakeup &&
8560 prev_enabled != !!rdev->wiphy.wowlan_config)
8561 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8562
ff1b6e69
JB		 8563 return 0;
8564 error:
8565 for (i = 0; i < new_triggers.n_patterns; i++)
8566 kfree(new_triggers.patterns[i].mask);
8567 kfree(new_triggers.patterns);
2a0e047e
JB		 8568 if (new_triggers.tcp && new_triggers.tcp->sock)
8569 sock_release(new_triggers.tcp->sock);
8570 kfree(new_triggers.tcp);
ff1b6e69
JB		 8571 return err;
8572}
dfb89c56 8573#endif
ff1b6e69 8574
be29b99a
AK		 8575static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8576 struct cfg80211_registered_device *rdev)
8577{
8578 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8579 int i, j, pat_len;
8580 struct cfg80211_coalesce_rules *rule;
8581
8582 if (!rdev->coalesce->n_rules)
8583 return 0;
8584
8585 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8586 if (!nl_rules)
8587 return -ENOBUFS;
8588
8589 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8590 nl_rule = nla_nest_start(msg, i + 1);
8591 if (!nl_rule)
8592 return -ENOBUFS;
8593
8594 rule = &rdev->coalesce->rules[i];
8595 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8596 rule->delay))
8597 return -ENOBUFS;
8598
8599 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8600 rule->condition))
8601 return -ENOBUFS;
8602
8603 nl_pats = nla_nest_start(msg,
8604 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8605 if (!nl_pats)
8606 return -ENOBUFS;
8607
8608 for (j = 0; j < rule->n_patterns; j++) {
8609 nl_pat = nla_nest_start(msg, j + 1);
8610 if (!nl_pat)
8611 return -ENOBUFS;
8612 pat_len = rule->patterns[j].pattern_len;
8613 if (nla_put(msg, NL80211_PKTPAT_MASK,
8614 DIV_ROUND_UP(pat_len, 8),
8615 rule->patterns[j].mask) ||
8616 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8617 rule->patterns[j].pattern) ||
8618 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8619 rule->patterns[j].pkt_offset))
8620 return -ENOBUFS;
8621 nla_nest_end(msg, nl_pat);
8622 }
8623 nla_nest_end(msg, nl_pats);
8624 nla_nest_end(msg, nl_rule);
8625 }
8626 nla_nest_end(msg, nl_rules);
8627
8628 return 0;
8629}
8630
8631static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8632{
8633 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8634 struct sk_buff *msg;
8635 void *hdr;
8636
8637 if (!rdev->wiphy.coalesce)
8638 return -EOPNOTSUPP;
8639
8640 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8641 if (!msg)
8642 return -ENOMEM;
8643
8644 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8645 NL80211_CMD_GET_COALESCE);
8646 if (!hdr)
8647 goto nla_put_failure;
8648
8649 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8650 goto nla_put_failure;
8651
8652 genlmsg_end(msg, hdr);
8653 return genlmsg_reply(msg, info);
8654
8655nla_put_failure:
8656 nlmsg_free(msg);
8657 return -ENOBUFS;
8658}
8659
8660void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8661{
8662 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8663 int i, j;
8664 struct cfg80211_coalesce_rules *rule;
8665
8666 if (!coalesce)
8667 return;
8668
8669 for (i = 0; i < coalesce->n_rules; i++) {
8670 rule = &coalesce->rules[i];
8671 for (j = 0; j < rule->n_patterns; j++)
8672 kfree(rule->patterns[j].mask);
8673 kfree(rule->patterns);
8674 }
8675 kfree(coalesce->rules);
8676 kfree(coalesce);
8677 rdev->coalesce = NULL;
8678}
8679
8680static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8681 struct nlattr *rule,
8682 struct cfg80211_coalesce_rules *new_rule)
8683{
8684 int err, i;
8685 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8686 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8687 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8688 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8689
8690 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8691 nla_len(rule), nl80211_coalesce_policy);
8692 if (err)
8693 return err;
8694
8695 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8696 new_rule->delay =
8697 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8698 if (new_rule->delay > coalesce->max_delay)
8699 return -EINVAL;
8700
8701 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8702 new_rule->condition =
8703 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8704 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8705 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8706 return -EINVAL;
8707
8708 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8709 return -EINVAL;
8710
8711 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8712 rem)
8713 n_patterns++;
8714 if (n_patterns > coalesce->n_patterns)
8715 return -EINVAL;
8716
8717 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8718 GFP_KERNEL);
8719 if (!new_rule->patterns)
8720 return -ENOMEM;
8721
8722 new_rule->n_patterns = n_patterns;
8723 i = 0;
8724
8725 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8726 rem) {
8727 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8728 nla_len(pat), NULL);
8729 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8730 !pat_tb[NL80211_PKTPAT_PATTERN])
8731 return -EINVAL;
8732 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8733 mask_len = DIV_ROUND_UP(pat_len, 8);
8734 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8735 return -EINVAL;
8736 if (pat_len > coalesce->pattern_max_len ||
8737 pat_len < coalesce->pattern_min_len)
8738 return -EINVAL;
8739
8740 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8741 pkt_offset = 0;
8742 else
8743 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8744 if (pkt_offset > coalesce->max_pkt_offset)
8745 return -EINVAL;
8746 new_rule->patterns[i].pkt_offset = pkt_offset;
8747
8748 new_rule->patterns[i].mask =
8749 kmalloc(mask_len + pat_len, GFP_KERNEL);
8750 if (!new_rule->patterns[i].mask)
8751 return -ENOMEM;
8752 new_rule->patterns[i].pattern =
8753 new_rule->patterns[i].mask + mask_len;
8754 memcpy(new_rule->patterns[i].mask,
8755 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8756 new_rule->patterns[i].pattern_len = pat_len;
8757 memcpy(new_rule->patterns[i].pattern,
8758 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8759 i++;
8760 }
8761
8762 return 0;
8763}
8764
8765static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8766{
8767 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8768 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8769 struct cfg80211_coalesce new_coalesce = {};
8770 struct cfg80211_coalesce *n_coalesce;
8771 int err, rem_rule, n_rules = 0, i, j;
8772 struct nlattr *rule;
8773 struct cfg80211_coalesce_rules *tmp_rule;
8774
8775 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8776 return -EOPNOTSUPP;
8777
8778 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8779 cfg80211_rdev_free_coalesce(rdev);
8780 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8781 return 0;
8782 }
8783
8784 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8785 rem_rule)
8786 n_rules++;
8787 if (n_rules > coalesce->n_rules)
8788 return -EINVAL;
8789
8790 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8791 GFP_KERNEL);
8792 if (!new_coalesce.rules)
8793 return -ENOMEM;
8794
8795 new_coalesce.n_rules = n_rules;
8796 i = 0;
8797
8798 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8799 rem_rule) {
8800 err = nl80211_parse_coalesce_rule(rdev, rule,
8801 &new_coalesce.rules[i]);
8802 if (err)
8803 goto error;
8804
8805 i++;
8806 }
8807
8808 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8809 if (err)
8810 goto error;
8811
8812 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8813 if (!n_coalesce) {
8814 err = -ENOMEM;
8815 goto error;
8816 }
8817 cfg80211_rdev_free_coalesce(rdev);
8818 rdev->coalesce = n_coalesce;
8819
8820 return 0;
8821error:
8822 for (i = 0; i < new_coalesce.n_rules; i++) {
8823 tmp_rule = &new_coalesce.rules[i];
8824 for (j = 0; j < tmp_rule->n_patterns; j++)
8825 kfree(tmp_rule->patterns[j].mask);
8826 kfree(tmp_rule->patterns);
8827 }
8828 kfree(new_coalesce.rules);
8829
8830 return err;
8831}
8832
e5497d76
JB		 8833static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8834{
8835 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8836 struct net_device *dev = info->user_ptr[1];
8837 struct wireless_dev *wdev = dev->ieee80211_ptr;
8838 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8839 struct cfg80211_gtk_rekey_data rekey_data;
8840 int err;
8841
8842 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8843 return -EINVAL;
8844
8845 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8846 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8847 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8848 nl80211_rekey_policy);
8849 if (err)
8850 return err;
8851
8852 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8853 return -ERANGE;
8854 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8855 return -ERANGE;
8856 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8857 return -ERANGE;
8858
8859 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8860 NL80211_KEK_LEN);
8861 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8862 NL80211_KCK_LEN);
8863 memcpy(rekey_data.replay_ctr,
8864 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8865 NL80211_REPLAY_CTR_LEN);
8866
8867 wdev_lock(wdev);
8868 if (!wdev->current_bss) {
8869 err = -ENOTCONN;
8870 goto out;
8871 }
8872
8873 if (!rdev->ops->set_rekey_data) {
8874 err = -EOPNOTSUPP;
8875 goto out;
8876 }
8877
e35e4d28 8878 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8879 out:
8880 wdev_unlock(wdev);
8881 return err;
8882}
8883
28946da7
JB		 8884static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8885 struct genl_info *info)
8886{
8887 struct net_device *dev = info->user_ptr[1];
8888 struct wireless_dev *wdev = dev->ieee80211_ptr;
8889
8890 if (wdev->iftype != NL80211_IFTYPE_AP &&
8891 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8892 return -EINVAL;
8893
15e47304 8894 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8895 return -EBUSY;
8896
15e47304 8897 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8898 return 0;
8899}
8900
7f6cf311
JB		 8901static int nl80211_probe_client(struct sk_buff *skb,
8902 struct genl_info *info)
8903{
8904 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8905 struct net_device *dev = info->user_ptr[1];
8906 struct wireless_dev *wdev = dev->ieee80211_ptr;
8907 struct sk_buff *msg;
8908 void *hdr;
8909 const u8 *addr;
8910 u64 cookie;
8911 int err;
8912
8913 if (wdev->iftype != NL80211_IFTYPE_AP &&
8914 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8915 return -EOPNOTSUPP;
8916
8917 if (!info->attrs[NL80211_ATTR_MAC])
8918 return -EINVAL;
8919
8920 if (!rdev->ops->probe_client)
8921 return -EOPNOTSUPP;
8922
8923 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8924 if (!msg)
8925 return -ENOMEM;
8926
15e47304 8927 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8928 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8929 if (!hdr) {
8930 err = -ENOBUFS;
7f6cf311
JB		 8931 goto free_msg;
8932 }
8933
8934 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8935
e35e4d28 8936 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8937 if (err)
8938 goto free_msg;
8939
9360ffd1
DM		 8940 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8941 goto nla_put_failure;
7f6cf311
JB		 8942
8943 genlmsg_end(msg, hdr);
8944
8945 return genlmsg_reply(msg, info);
8946
8947 nla_put_failure:
8948 err = -ENOBUFS;
8949 free_msg:
8950 nlmsg_free(msg);
8951 return err;
8952}
8953
5e760230
JB		 8954static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8955{
8956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8957 struct cfg80211_beacon_registration *reg, *nreg;
8958 int rv;
5e760230
JB		 8959
8960 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8961 return -EOPNOTSUPP;
8962
37c73b5f
BG		 8963 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8964 if (!nreg)
8965 return -ENOMEM;
8966
8967 /* First, check if already registered. */
8968 spin_lock_bh(&rdev->beacon_registrations_lock);
8969 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8970 if (reg->nlportid == info->snd_portid) {
8971 rv = -EALREADY;
8972 goto out_err;
8973 }
8974 }
8975 /* Add it to the list */
8976 nreg->nlportid = info->snd_portid;
8977 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8978
37c73b5f 8979 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8980
8981 return 0;
37c73b5f
BG		 8982out_err:
8983 spin_unlock_bh(&rdev->beacon_registrations_lock);
8984 kfree(nreg);
8985 return rv;
5e760230
JB		 8986}
8987
98104fde
JB		 8988static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8989{
8990 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8991 struct wireless_dev *wdev = info->user_ptr[1];
8992 int err;
8993
8994 if (!rdev->ops->start_p2p_device)
8995 return -EOPNOTSUPP;
8996
8997 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8998 return -EOPNOTSUPP;
8999
9000 if (wdev->p2p_started)
9001 return 0;
9002
b6a55015
LC		 9003 if (rfkill_blocked(rdev->rfkill))
9004 return -ERFKILL;
98104fde 9005
eeb126e9 9006 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9007 if (err)
9008 return err;
9009
9010 wdev->p2p_started = true;
98104fde 9011 rdev->opencount++;
98104fde
JB		 9012
9013 return 0;
9014}
9015
9016static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9017{
9018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9019 struct wireless_dev *wdev = info->user_ptr[1];
9020
9021 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9022 return -EOPNOTSUPP;
9023
9024 if (!rdev->ops->stop_p2p_device)
9025 return -EOPNOTSUPP;
9026
f9f47529 9027 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9028
9029 return 0;
9030}
9031
3713b4e3
JB		 9032static int nl80211_get_protocol_features(struct sk_buff *skb,
9033 struct genl_info *info)
9034{
9035 void *hdr;
9036 struct sk_buff *msg;
9037
9038 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9039 if (!msg)
9040 return -ENOMEM;
9041
9042 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9043 NL80211_CMD_GET_PROTOCOL_FEATURES);
9044 if (!hdr)
9045 goto nla_put_failure;
9046
9047 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9048 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9049 goto nla_put_failure;
9050
9051 genlmsg_end(msg, hdr);
9052 return genlmsg_reply(msg, info);
9053
9054 nla_put_failure:
9055 kfree_skb(msg);
9056 return -ENOBUFS;
9057}
9058
355199e0
JM		 9059static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9060{
9061 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9062 struct cfg80211_update_ft_ies_params ft_params;
9063 struct net_device *dev = info->user_ptr[1];
9064
9065 if (!rdev->ops->update_ft_ies)
9066 return -EOPNOTSUPP;
9067
9068 if (!info->attrs[NL80211_ATTR_MDID] ||
9069 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9070 return -EINVAL;
9071
9072 memset(&ft_params, 0, sizeof(ft_params));
9073 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9074 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9075 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9076
9077 return rdev_update_ft_ies(rdev, dev, &ft_params);
9078}
9079
5de17984
AS		 9080static int nl80211_crit_protocol_start(struct sk_buff *skb,
9081 struct genl_info *info)
9082{
9083 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9084 struct wireless_dev *wdev = info->user_ptr[1];
9085 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9086 u16 duration;
9087 int ret;
9088
9089 if (!rdev->ops->crit_proto_start)
9090 return -EOPNOTSUPP;
9091
9092 if (WARN_ON(!rdev->ops->crit_proto_stop))
9093 return -EINVAL;
9094
9095 if (rdev->crit_proto_nlportid)
9096 return -EBUSY;
9097
9098 /* determine protocol if provided */
9099 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9100 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9101
9102 if (proto >= NUM_NL80211_CRIT_PROTO)
9103 return -EINVAL;
9104
9105 /* timeout must be provided */
9106 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9107 return -EINVAL;
9108
9109 duration =
9110 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9111
9112 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9113 return -ERANGE;
9114
9115 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9116 if (!ret)
9117 rdev->crit_proto_nlportid = info->snd_portid;
9118
9119 return ret;
9120}
9121
9122static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9123 struct genl_info *info)
9124{
9125 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9126 struct wireless_dev *wdev = info->user_ptr[1];
9127
9128 if (!rdev->ops->crit_proto_stop)
9129 return -EOPNOTSUPP;
9130
9131 if (rdev->crit_proto_nlportid) {
9132 rdev->crit_proto_nlportid = 0;
9133 rdev_crit_proto_stop(rdev, wdev);
9134 }
9135 return 0;
9136}
9137
ad7e718c
JB		 9138static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9139{
9140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9141 struct wireless_dev *wdev =
9142 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9143 int i, err;
9144 u32 vid, subcmd;
9145
9146 if (!rdev->wiphy.vendor_commands)
9147 return -EOPNOTSUPP;
9148
9149 if (IS_ERR(wdev)) {
9150 err = PTR_ERR(wdev);
9151 if (err != -EINVAL)
9152 return err;
9153 wdev = NULL;
9154 } else if (wdev->wiphy != &rdev->wiphy) {
9155 return -EINVAL;
9156 }
9157
9158 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9159 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9160 return -EINVAL;
9161
9162 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9163 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9164 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9165 const struct wiphy_vendor_command *vcmd;
9166 void *data = NULL;
9167 int len = 0;
9168
9169 vcmd = &rdev->wiphy.vendor_commands[i];
9170
9171 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9172 continue;
9173
9174 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9175 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9176 if (!wdev)
9177 return -EINVAL;
9178 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9179 !wdev->netdev)
9180 return -EINVAL;
9181
9182 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9183 if (wdev->netdev &&
9184 !netif_running(wdev->netdev))
9185 return -ENETDOWN;
9186 if (!wdev->netdev && !wdev->p2p_started)
9187 return -ENETDOWN;
9188 }
9189 } else {
9190 wdev = NULL;
9191 }
9192
9193 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9194 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9195 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9196 }
9197
9198 rdev->cur_cmd_info = info;
9199 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9200 data, len);
9201 rdev->cur_cmd_info = NULL;
9202 return err;
9203 }
9204
9205 return -EOPNOTSUPP;
9206}
9207
9208struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9209 enum nl80211_commands cmd,
9210 enum nl80211_attrs attr,
9211 int approxlen)
9212{
f26cbf40 9213 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9214
9215 if (WARN_ON(!rdev->cur_cmd_info))
9216 return NULL;
9217
9218 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9219 rdev->cur_cmd_info->snd_portid,
9220 rdev->cur_cmd_info->snd_seq,
567ffc35 9221 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9222}
9223EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9224
9225int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9226{
9227 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9228 void *hdr = ((void **)skb->cb)[1];
9229 struct nlattr *data = ((void **)skb->cb)[2];
9230
9231 if (WARN_ON(!rdev->cur_cmd_info)) {
9232 kfree_skb(skb);
9233 return -EINVAL;
9234 }
9235
9236 nla_nest_end(skb, data);
9237 genlmsg_end(skb, hdr);
9238 return genlmsg_reply(skb, rdev->cur_cmd_info);
9239}
9240EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9241
9242
fa9ffc74
KP		 9243static int nl80211_set_qos_map(struct sk_buff *skb,
9244 struct genl_info *info)
9245{
9246 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9247 struct cfg80211_qos_map *qos_map = NULL;
9248 struct net_device *dev = info->user_ptr[1];
9249 u8 *pos, len, num_des, des_len, des;
9250 int ret;
9251
9252 if (!rdev->ops->set_qos_map)
9253 return -EOPNOTSUPP;
9254
9255 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9256 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9257 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9258
9259 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9260 len > IEEE80211_QOS_MAP_LEN_MAX)
9261 return -EINVAL;
9262
9263 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9264 if (!qos_map)
9265 return -ENOMEM;
9266
9267 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9268 if (num_des) {
9269 des_len = num_des *
9270 sizeof(struct cfg80211_dscp_exception);
9271 memcpy(qos_map->dscp_exception, pos, des_len);
9272 qos_map->num_des = num_des;
9273 for (des = 0; des < num_des; des++) {
9274 if (qos_map->dscp_exception[des].up > 7) {
9275 kfree(qos_map);
9276 return -EINVAL;
9277 }
9278 }
9279 pos += des_len;
9280 }
9281 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9282 }
9283
9284 wdev_lock(dev->ieee80211_ptr);
9285 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9286 if (!ret)
9287 ret = rdev_set_qos_map(rdev, dev, qos_map);
9288 wdev_unlock(dev->ieee80211_ptr);
9289
9290 kfree(qos_map);
9291 return ret;
9292}
9293
4c476991
JB		 9294#define NL80211_FLAG_NEED_WIPHY 0x01
9295#define NL80211_FLAG_NEED_NETDEV 0x02
9296#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9297#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9298#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9299 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9300#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9301/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9302#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9303 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9304
f84f771d 9305static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9306 struct genl_info *info)
9307{
9308 struct cfg80211_registered_device *rdev;
89a54e48 9309 struct wireless_dev *wdev;
4c476991 9310 struct net_device *dev;
4c476991
JB		 9311 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9312
9313 if (rtnl)
9314 rtnl_lock();
9315
9316 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9317 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9318 if (IS_ERR(rdev)) {
9319 if (rtnl)
9320 rtnl_unlock();
9321 return PTR_ERR(rdev);
9322 }
9323 info->user_ptr[0] = rdev;
1bf614ef
JB		 9324 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9325 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9326 ASSERT_RTNL();
9327
89a54e48
JB		 9328 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9329 info->attrs);
9330 if (IS_ERR(wdev)) {
4c476991
JB		 9331 if (rtnl)
9332 rtnl_unlock();
89a54e48 9333 return PTR_ERR(wdev);
4c476991 9334 }
89a54e48 9335
89a54e48 9336 dev = wdev->netdev;
f26cbf40 9337 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9338
1bf614ef
JB		 9339 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9340 if (!dev) {
1bf614ef
JB		 9341 if (rtnl)
9342 rtnl_unlock();
9343 return -EINVAL;
9344 }
9345
9346 info->user_ptr[1] = dev;
9347 } else {
9348 info->user_ptr[1] = wdev;
41265714 9349 }
1bf614ef
JB		 9350
9351 if (dev) {
9352 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9353 !netif_running(dev)) {
1bf614ef
JB		 9354 if (rtnl)
9355 rtnl_unlock();
9356 return -ENETDOWN;
9357 }
9358
9359 dev_hold(dev);
98104fde
JB		 9360 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9361 if (!wdev->p2p_started) {
98104fde
JB		 9362 if (rtnl)
9363 rtnl_unlock();
9364 return -ENETDOWN;
9365 }
41265714 9366 }
89a54e48 9367
4c476991 9368 info->user_ptr[0] = rdev;
4c476991
JB		 9369 }
9370
9371 return 0;
9372}
9373
f84f771d 9374static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9375 struct genl_info *info)
9376{
1bf614ef
JB		 9377 if (info->user_ptr[1]) {
9378 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9379 struct wireless_dev *wdev = info->user_ptr[1];
9380
9381 if (wdev->netdev)
9382 dev_put(wdev->netdev);
9383 } else {
9384 dev_put(info->user_ptr[1]);
9385 }
9386 }
4c476991
JB		 9387 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9388 rtnl_unlock();
9389}
9390
4534de83 9391static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9392 {
9393 .cmd = NL80211_CMD_GET_WIPHY,
9394 .doit = nl80211_get_wiphy,
9395 .dumpit = nl80211_dump_wiphy,
86e8cf98 9396 .done = nl80211_dump_wiphy_done,
55682965
JB		 9397 .policy = nl80211_policy,
9398 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9399 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9400 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9401 },
9402 {
9403 .cmd = NL80211_CMD_SET_WIPHY,
9404 .doit = nl80211_set_wiphy,
9405 .policy = nl80211_policy,
9406 .flags = GENL_ADMIN_PERM,
4c476991 9407 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9408 },
9409 {
9410 .cmd = NL80211_CMD_GET_INTERFACE,
9411 .doit = nl80211_get_interface,
9412 .dumpit = nl80211_dump_interface,
9413 .policy = nl80211_policy,
9414 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9415 .internal_flags = NL80211_FLAG_NEED_WDEV |
9416 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9417 },
9418 {
9419 .cmd = NL80211_CMD_SET_INTERFACE,
9420 .doit = nl80211_set_interface,
9421 .policy = nl80211_policy,
9422 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9423 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9424 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9425 },
9426 {
9427 .cmd = NL80211_CMD_NEW_INTERFACE,
9428 .doit = nl80211_new_interface,
9429 .policy = nl80211_policy,
9430 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9431 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9432 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9433 },
9434 {
9435 .cmd = NL80211_CMD_DEL_INTERFACE,
9436 .doit = nl80211_del_interface,
9437 .policy = nl80211_policy,
41ade00f 9438 .flags = GENL_ADMIN_PERM,
84efbb84 9439 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9440 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9441 },
9442 {
9443 .cmd = NL80211_CMD_GET_KEY,
9444 .doit = nl80211_get_key,
9445 .policy = nl80211_policy,
9446 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9447 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9448 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9449 },
9450 {
9451 .cmd = NL80211_CMD_SET_KEY,
9452 .doit = nl80211_set_key,
9453 .policy = nl80211_policy,
9454 .flags = GENL_ADMIN_PERM,
41265714 9455 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9456 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9457 },
9458 {
9459 .cmd = NL80211_CMD_NEW_KEY,
9460 .doit = nl80211_new_key,
9461 .policy = nl80211_policy,
9462 .flags = GENL_ADMIN_PERM,
41265714 9463 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9464 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9465 },
9466 {
9467 .cmd = NL80211_CMD_DEL_KEY,
9468 .doit = nl80211_del_key,
9469 .policy = nl80211_policy,
55682965 9470 .flags = GENL_ADMIN_PERM,
41265714 9471 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9472 NL80211_FLAG_NEED_RTNL,
55682965 9473 },
ed1b6cc7
JB		 9474 {
9475 .cmd = NL80211_CMD_SET_BEACON,
9476 .policy = nl80211_policy,
9477 .flags = GENL_ADMIN_PERM,
8860020e 9478 .doit = nl80211_set_beacon,
2b5f8b0b 9479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9480 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9481 },
9482 {
8860020e 9483 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9484 .policy = nl80211_policy,
9485 .flags = GENL_ADMIN_PERM,
8860020e 9486 .doit = nl80211_start_ap,
2b5f8b0b 9487 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9488 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9489 },
9490 {
8860020e 9491 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9492 .policy = nl80211_policy,
9493 .flags = GENL_ADMIN_PERM,
8860020e 9494 .doit = nl80211_stop_ap,
2b5f8b0b 9495 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9496 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9497 },
5727ef1b
JB		 9498 {
9499 .cmd = NL80211_CMD_GET_STATION,
9500 .doit = nl80211_get_station,
2ec600d6 9501 .dumpit = nl80211_dump_station,
5727ef1b 9502 .policy = nl80211_policy,
4c476991
JB		 9503 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9504 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9505 },
9506 {
9507 .cmd = NL80211_CMD_SET_STATION,
9508 .doit = nl80211_set_station,
9509 .policy = nl80211_policy,
9510 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9511 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9512 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9513 },
9514 {
9515 .cmd = NL80211_CMD_NEW_STATION,
9516 .doit = nl80211_new_station,
9517 .policy = nl80211_policy,
9518 .flags = GENL_ADMIN_PERM,
41265714 9519 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9520 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9521 },
9522 {
9523 .cmd = NL80211_CMD_DEL_STATION,
9524 .doit = nl80211_del_station,
9525 .policy = nl80211_policy,
2ec600d6 9526 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9527 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9528 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9529 },
9530 {
9531 .cmd = NL80211_CMD_GET_MPATH,
9532 .doit = nl80211_get_mpath,
9533 .dumpit = nl80211_dump_mpath,
9534 .policy = nl80211_policy,
9535 .flags = GENL_ADMIN_PERM,
41265714 9536 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9537 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9538 },
9539 {
9540 .cmd = NL80211_CMD_SET_MPATH,
9541 .doit = nl80211_set_mpath,
9542 .policy = nl80211_policy,
9543 .flags = GENL_ADMIN_PERM,
41265714 9544 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9545 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9546 },
9547 {
9548 .cmd = NL80211_CMD_NEW_MPATH,
9549 .doit = nl80211_new_mpath,
9550 .policy = nl80211_policy,
9551 .flags = GENL_ADMIN_PERM,
41265714 9552 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9553 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9554 },
9555 {
9556 .cmd = NL80211_CMD_DEL_MPATH,
9557 .doit = nl80211_del_mpath,
9558 .policy = nl80211_policy,
9f1ba906 9559 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9560 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9561 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9562 },
9563 {
9564 .cmd = NL80211_CMD_SET_BSS,
9565 .doit = nl80211_set_bss,
9566 .policy = nl80211_policy,
b2e1b302 9567 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9568 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9569 NL80211_FLAG_NEED_RTNL,
b2e1b302 9570 },
f130347c
LR		 9571 {
9572 .cmd = NL80211_CMD_GET_REG,
9573 .doit = nl80211_get_reg,
9574 .policy = nl80211_policy,
5fe231e8 9575 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9576 /* can be retrieved by unprivileged users */
9577 },
b2e1b302
LR		 9578 {
9579 .cmd = NL80211_CMD_SET_REG,
9580 .doit = nl80211_set_reg,
9581 .policy = nl80211_policy,
9582 .flags = GENL_ADMIN_PERM,
5fe231e8 9583 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9584 },
9585 {
9586 .cmd = NL80211_CMD_REQ_SET_REG,
9587 .doit = nl80211_req_set_reg,
9588 .policy = nl80211_policy,
93da9cc1 9589 .flags = GENL_ADMIN_PERM,
9590 },
9591 {
24bdd9f4
JC		 9592 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9593 .doit = nl80211_get_mesh_config,
93da9cc1 9594 .policy = nl80211_policy,
9595 /* can be retrieved by unprivileged users */
2b5f8b0b 9596 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9597 NL80211_FLAG_NEED_RTNL,
93da9cc1 9598 },
9599 {
24bdd9f4
JC		 9600 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9601 .doit = nl80211_update_mesh_config,
93da9cc1 9602 .policy = nl80211_policy,
9aed3cc1 9603 .flags = GENL_ADMIN_PERM,
29cbe68c 9604 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9605 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9606 },
2a519311
JB		 9607 {
9608 .cmd = NL80211_CMD_TRIGGER_SCAN,
9609 .doit = nl80211_trigger_scan,
9610 .policy = nl80211_policy,
9611 .flags = GENL_ADMIN_PERM,
fd014284 9612 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9613 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9614 },
9615 {
9616 .cmd = NL80211_CMD_GET_SCAN,
9617 .policy = nl80211_policy,
9618 .dumpit = nl80211_dump_scan,
9619 },
807f8a8c
LC		 9620 {
9621 .cmd = NL80211_CMD_START_SCHED_SCAN,
9622 .doit = nl80211_start_sched_scan,
9623 .policy = nl80211_policy,
9624 .flags = GENL_ADMIN_PERM,
9625 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9626 NL80211_FLAG_NEED_RTNL,
9627 },
9628 {
9629 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9630 .doit = nl80211_stop_sched_scan,
9631 .policy = nl80211_policy,
9632 .flags = GENL_ADMIN_PERM,
9633 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9634 NL80211_FLAG_NEED_RTNL,
9635 },
636a5d36
JM		 9636 {
9637 .cmd = NL80211_CMD_AUTHENTICATE,
9638 .doit = nl80211_authenticate,
9639 .policy = nl80211_policy,
9640 .flags = GENL_ADMIN_PERM,
41265714 9641 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9642 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9643 },
9644 {
9645 .cmd = NL80211_CMD_ASSOCIATE,
9646 .doit = nl80211_associate,
9647 .policy = nl80211_policy,
9648 .flags = GENL_ADMIN_PERM,
41265714 9649 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9650 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9651 },
9652 {
9653 .cmd = NL80211_CMD_DEAUTHENTICATE,
9654 .doit = nl80211_deauthenticate,
9655 .policy = nl80211_policy,
9656 .flags = GENL_ADMIN_PERM,
41265714 9657 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9658 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9659 },
9660 {
9661 .cmd = NL80211_CMD_DISASSOCIATE,
9662 .doit = nl80211_disassociate,
9663 .policy = nl80211_policy,
9664 .flags = GENL_ADMIN_PERM,
41265714 9665 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9666 NL80211_FLAG_NEED_RTNL,
636a5d36 9667 },
04a773ad
JB		 9668 {
9669 .cmd = NL80211_CMD_JOIN_IBSS,
9670 .doit = nl80211_join_ibss,
9671 .policy = nl80211_policy,
9672 .flags = GENL_ADMIN_PERM,
41265714 9673 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9674 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9675 },
9676 {
9677 .cmd = NL80211_CMD_LEAVE_IBSS,
9678 .doit = nl80211_leave_ibss,
9679 .policy = nl80211_policy,
9680 .flags = GENL_ADMIN_PERM,
41265714 9681 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9682 NL80211_FLAG_NEED_RTNL,
04a773ad 9683 },
aff89a9b
JB		 9684#ifdef CONFIG_NL80211_TESTMODE
9685 {
9686 .cmd = NL80211_CMD_TESTMODE,
9687 .doit = nl80211_testmode_do,
71063f0e 9688 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9689 .policy = nl80211_policy,
9690 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9691 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9692 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9693 },
9694#endif
b23aa676
SO		 9695 {
9696 .cmd = NL80211_CMD_CONNECT,
9697 .doit = nl80211_connect,
9698 .policy = nl80211_policy,
9699 .flags = GENL_ADMIN_PERM,
41265714 9700 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9701 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9702 },
9703 {
9704 .cmd = NL80211_CMD_DISCONNECT,
9705 .doit = nl80211_disconnect,
9706 .policy = nl80211_policy,
9707 .flags = GENL_ADMIN_PERM,
41265714 9708 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9709 NL80211_FLAG_NEED_RTNL,
b23aa676 9710 },
463d0183
JB		 9711 {
9712 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9713 .doit = nl80211_wiphy_netns,
9714 .policy = nl80211_policy,
9715 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9716 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9717 NL80211_FLAG_NEED_RTNL,
463d0183 9718 },
61fa713c
HS		 9719 {
9720 .cmd = NL80211_CMD_GET_SURVEY,
9721 .policy = nl80211_policy,
9722 .dumpit = nl80211_dump_survey,
9723 },
67fbb16b
SO		 9724 {
9725 .cmd = NL80211_CMD_SET_PMKSA,
9726 .doit = nl80211_setdel_pmksa,
9727 .policy = nl80211_policy,
9728 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9729 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9730 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9731 },
9732 {
9733 .cmd = NL80211_CMD_DEL_PMKSA,
9734 .doit = nl80211_setdel_pmksa,
9735 .policy = nl80211_policy,
9736 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9737 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9738 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9739 },
9740 {
9741 .cmd = NL80211_CMD_FLUSH_PMKSA,
9742 .doit = nl80211_flush_pmksa,
9743 .policy = nl80211_policy,
9744 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9745 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9746 NL80211_FLAG_NEED_RTNL,
67fbb16b 9747 },
9588bbd5
JM		 9748 {
9749 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9750 .doit = nl80211_remain_on_channel,
9751 .policy = nl80211_policy,
9752 .flags = GENL_ADMIN_PERM,
71bbc994 9753 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9754 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9755 },
9756 {
9757 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9758 .doit = nl80211_cancel_remain_on_channel,
9759 .policy = nl80211_policy,
9760 .flags = GENL_ADMIN_PERM,
71bbc994 9761 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9762 NL80211_FLAG_NEED_RTNL,
9588bbd5 9763 },
13ae75b1
JM		 9764 {
9765 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9766 .doit = nl80211_set_tx_bitrate_mask,
9767 .policy = nl80211_policy,
9768 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9769 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9770 NL80211_FLAG_NEED_RTNL,
13ae75b1 9771 },
026331c4 9772 {
2e161f78
JB		 9773 .cmd = NL80211_CMD_REGISTER_FRAME,
9774 .doit = nl80211_register_mgmt,
026331c4
JM		 9775 .policy = nl80211_policy,
9776 .flags = GENL_ADMIN_PERM,
71bbc994 9777 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9778 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9779 },
9780 {
2e161f78
JB		 9781 .cmd = NL80211_CMD_FRAME,
9782 .doit = nl80211_tx_mgmt,
026331c4 9783 .policy = nl80211_policy,
f7ca38df 9784 .flags = GENL_ADMIN_PERM,
71bbc994 9785 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9786 NL80211_FLAG_NEED_RTNL,
9787 },
9788 {
9789 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9790 .doit = nl80211_tx_mgmt_cancel_wait,
9791 .policy = nl80211_policy,
026331c4 9792 .flags = GENL_ADMIN_PERM,
71bbc994 9793 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9794 NL80211_FLAG_NEED_RTNL,
026331c4 9795 },
ffb9eb3d
KV		 9796 {
9797 .cmd = NL80211_CMD_SET_POWER_SAVE,
9798 .doit = nl80211_set_power_save,
9799 .policy = nl80211_policy,
9800 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9801 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9802 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9803 },
9804 {
9805 .cmd = NL80211_CMD_GET_POWER_SAVE,
9806 .doit = nl80211_get_power_save,
9807 .policy = nl80211_policy,
9808 /* can be retrieved by unprivileged users */
4c476991
JB		 9809 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9810 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9811 },
d6dc1a38
JO		 9812 {
9813 .cmd = NL80211_CMD_SET_CQM,
9814 .doit = nl80211_set_cqm,
9815 .policy = nl80211_policy,
9816 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9817 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9818 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9819 },
f444de05
JB		 9820 {
9821 .cmd = NL80211_CMD_SET_CHANNEL,
9822 .doit = nl80211_set_channel,
9823 .policy = nl80211_policy,
9824 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9825 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9826 NL80211_FLAG_NEED_RTNL,
f444de05 9827 },
e8347eba
BJ		 9828 {
9829 .cmd = NL80211_CMD_SET_WDS_PEER,
9830 .doit = nl80211_set_wds_peer,
9831 .policy = nl80211_policy,
9832 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9833 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9834 NL80211_FLAG_NEED_RTNL,
e8347eba 9835 },
29cbe68c
JB		 9836 {
9837 .cmd = NL80211_CMD_JOIN_MESH,
9838 .doit = nl80211_join_mesh,
9839 .policy = nl80211_policy,
9840 .flags = GENL_ADMIN_PERM,
9841 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9842 NL80211_FLAG_NEED_RTNL,
9843 },
9844 {
9845 .cmd = NL80211_CMD_LEAVE_MESH,
9846 .doit = nl80211_leave_mesh,
9847 .policy = nl80211_policy,
9848 .flags = GENL_ADMIN_PERM,
9849 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9850 NL80211_FLAG_NEED_RTNL,
9851 },
dfb89c56 9852#ifdef CONFIG_PM
ff1b6e69
JB		 9853 {
9854 .cmd = NL80211_CMD_GET_WOWLAN,
9855 .doit = nl80211_get_wowlan,
9856 .policy = nl80211_policy,
9857 /* can be retrieved by unprivileged users */
9858 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9859 NL80211_FLAG_NEED_RTNL,
9860 },
9861 {
9862 .cmd = NL80211_CMD_SET_WOWLAN,
9863 .doit = nl80211_set_wowlan,
9864 .policy = nl80211_policy,
9865 .flags = GENL_ADMIN_PERM,
9866 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9867 NL80211_FLAG_NEED_RTNL,
9868 },
dfb89c56 9869#endif
e5497d76
JB		 9870 {
9871 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9872 .doit = nl80211_set_rekey_data,
9873 .policy = nl80211_policy,
9874 .flags = GENL_ADMIN_PERM,
9875 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9876 NL80211_FLAG_NEED_RTNL,
9877 },
109086ce
AN		 9878 {
9879 .cmd = NL80211_CMD_TDLS_MGMT,
9880 .doit = nl80211_tdls_mgmt,
9881 .policy = nl80211_policy,
9882 .flags = GENL_ADMIN_PERM,
9883 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9884 NL80211_FLAG_NEED_RTNL,
9885 },
9886 {
9887 .cmd = NL80211_CMD_TDLS_OPER,
9888 .doit = nl80211_tdls_oper,
9889 .policy = nl80211_policy,
9890 .flags = GENL_ADMIN_PERM,
9891 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9892 NL80211_FLAG_NEED_RTNL,
9893 },
28946da7
JB		 9894 {
9895 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9896 .doit = nl80211_register_unexpected_frame,
9897 .policy = nl80211_policy,
9898 .flags = GENL_ADMIN_PERM,
9899 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9900 NL80211_FLAG_NEED_RTNL,
9901 },
7f6cf311
JB		 9902 {
9903 .cmd = NL80211_CMD_PROBE_CLIENT,
9904 .doit = nl80211_probe_client,
9905 .policy = nl80211_policy,
9906 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9907 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9908 NL80211_FLAG_NEED_RTNL,
9909 },
5e760230
JB		 9910 {
9911 .cmd = NL80211_CMD_REGISTER_BEACONS,
9912 .doit = nl80211_register_beacons,
9913 .policy = nl80211_policy,
9914 .flags = GENL_ADMIN_PERM,
9915 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9916 NL80211_FLAG_NEED_RTNL,
9917 },
1d9d9213
SW		 9918 {
9919 .cmd = NL80211_CMD_SET_NOACK_MAP,
9920 .doit = nl80211_set_noack_map,
9921 .policy = nl80211_policy,
9922 .flags = GENL_ADMIN_PERM,
9923 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9924 NL80211_FLAG_NEED_RTNL,
9925 },
98104fde
JB		 9926 {
9927 .cmd = NL80211_CMD_START_P2P_DEVICE,
9928 .doit = nl80211_start_p2p_device,
9929 .policy = nl80211_policy,
9930 .flags = GENL_ADMIN_PERM,
9931 .internal_flags = NL80211_FLAG_NEED_WDEV |
9932 NL80211_FLAG_NEED_RTNL,
9933 },
9934 {
9935 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9936 .doit = nl80211_stop_p2p_device,
9937 .policy = nl80211_policy,
9938 .flags = GENL_ADMIN_PERM,
9939 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9940 NL80211_FLAG_NEED_RTNL,
9941 },
f4e583c8
AQ		 9942 {
9943 .cmd = NL80211_CMD_SET_MCAST_RATE,
9944 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 9945 .policy = nl80211_policy,
9946 .flags = GENL_ADMIN_PERM,
9947 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9948 NL80211_FLAG_NEED_RTNL,
9949 },
9950 {
9951 .cmd = NL80211_CMD_SET_MAC_ACL,
9952 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 9953 .policy = nl80211_policy,
9954 .flags = GENL_ADMIN_PERM,
9955 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9956 NL80211_FLAG_NEED_RTNL,
9957 },
04f39047
SW		 9958 {
9959 .cmd = NL80211_CMD_RADAR_DETECT,
9960 .doit = nl80211_start_radar_detection,
9961 .policy = nl80211_policy,
9962 .flags = GENL_ADMIN_PERM,
9963 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9964 NL80211_FLAG_NEED_RTNL,
9965 },
3713b4e3
JB		 9966 {
9967 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9968 .doit = nl80211_get_protocol_features,
9969 .policy = nl80211_policy,
9970 },
355199e0
JM		 9971 {
9972 .cmd = NL80211_CMD_UPDATE_FT_IES,
9973 .doit = nl80211_update_ft_ies,
9974 .policy = nl80211_policy,
9975 .flags = GENL_ADMIN_PERM,
9976 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9977 NL80211_FLAG_NEED_RTNL,
9978 },
5de17984
AS		 9979 {
9980 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9981 .doit = nl80211_crit_protocol_start,
9982 .policy = nl80211_policy,
9983 .flags = GENL_ADMIN_PERM,
9984 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9985 NL80211_FLAG_NEED_RTNL,
9986 },
9987 {
9988 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9989 .doit = nl80211_crit_protocol_stop,
9990 .policy = nl80211_policy,
9991 .flags = GENL_ADMIN_PERM,
9992 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9993 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 9994 },
9995 {
9996 .cmd = NL80211_CMD_GET_COALESCE,
9997 .doit = nl80211_get_coalesce,
9998 .policy = nl80211_policy,
9999 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10000 NL80211_FLAG_NEED_RTNL,
10001 },
10002 {
10003 .cmd = NL80211_CMD_SET_COALESCE,
10004 .doit = nl80211_set_coalesce,
10005 .policy = nl80211_policy,
10006 .flags = GENL_ADMIN_PERM,
10007 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10008 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10009 },
10010 {
10011 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10012 .doit = nl80211_channel_switch,
10013 .policy = nl80211_policy,
10014 .flags = GENL_ADMIN_PERM,
10015 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10016 NL80211_FLAG_NEED_RTNL,
10017 },
ad7e718c
JB		 10018 {
10019 .cmd = NL80211_CMD_VENDOR,
10020 .doit = nl80211_vendor_cmd,
10021 .policy = nl80211_policy,
10022 .flags = GENL_ADMIN_PERM,
10023 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10024 NL80211_FLAG_NEED_RTNL,
10025 },
fa9ffc74
KP		 10026 {
10027 .cmd = NL80211_CMD_SET_QOS_MAP,
10028 .doit = nl80211_set_qos_map,
10029 .policy = nl80211_policy,
10030 .flags = GENL_ADMIN_PERM,
10031 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10032 NL80211_FLAG_NEED_RTNL,
10033 },
55682965 10034};
9588bbd5 10035
55682965
JB		 10036/* notification functions */
10037
10038void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
10039{
10040 struct sk_buff *msg;
86e8cf98 10041 struct nl80211_dump_wiphy_state state = {};
55682965 10042
fd2120ca 10043 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10044 if (!msg)
10045 return;
10046
86e8cf98 10047 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10048 nlmsg_free(msg);
10049 return;
10050 }
10051
68eb5503 10052 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10053 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10054}
10055
362a415d
JB		 10056static int nl80211_add_scan_req(struct sk_buff *msg,
10057 struct cfg80211_registered_device *rdev)
10058{
10059 struct cfg80211_scan_request *req = rdev->scan_req;
10060 struct nlattr *nest;
10061 int i;
10062
10063 if (WARN_ON(!req))
10064 return 0;
10065
10066 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10067 if (!nest)
10068 goto nla_put_failure;
9360ffd1
DM		 10069 for (i = 0; i < req->n_ssids; i++) {
10070 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10071 goto nla_put_failure;
10072 }
362a415d
JB		 10073 nla_nest_end(msg, nest);
10074
10075 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10076 if (!nest)
10077 goto nla_put_failure;
9360ffd1
DM		 10078 for (i = 0; i < req->n_channels; i++) {
10079 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10080 goto nla_put_failure;
10081 }
362a415d
JB		 10082 nla_nest_end(msg, nest);
10083
9360ffd1
DM		 10084 if (req->ie &&
10085 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10086 goto nla_put_failure;
362a415d 10087
ae917c9f
JB		 10088 if (req->flags &&
10089 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10090 goto nla_put_failure;
ed473771 10091
362a415d
JB		 10092 return 0;
10093 nla_put_failure:
10094 return -ENOBUFS;
10095}
10096
a538e2d5
JB		 10097static int nl80211_send_scan_msg(struct sk_buff *msg,
10098 struct cfg80211_registered_device *rdev,
fd014284 10099 struct wireless_dev *wdev,
15e47304 10100 u32 portid, u32 seq, int flags,
a538e2d5 10101 u32 cmd)
2a519311
JB		 10102{
10103 void *hdr;
10104
15e47304 10105 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10106 if (!hdr)
10107 return -1;
10108
9360ffd1 10109 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10110 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10111 wdev->netdev->ifindex)) ||
10112 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10113 goto nla_put_failure;
2a519311 10114
362a415d
JB		 10115 /* ignore errors and send incomplete event anyway */
10116 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10117
10118 return genlmsg_end(msg, hdr);
10119
10120 nla_put_failure:
10121 genlmsg_cancel(msg, hdr);
10122 return -EMSGSIZE;
10123}
10124
807f8a8c
LC		 10125static int
10126nl80211_send_sched_scan_msg(struct sk_buff *msg,
10127 struct cfg80211_registered_device *rdev,
10128 struct net_device *netdev,
15e47304 10129 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10130{
10131 void *hdr;
10132
15e47304 10133 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10134 if (!hdr)
10135 return -1;
10136
9360ffd1
DM		 10137 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10138 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10139 goto nla_put_failure;
807f8a8c
LC		 10140
10141 return genlmsg_end(msg, hdr);
10142
10143 nla_put_failure:
10144 genlmsg_cancel(msg, hdr);
10145 return -EMSGSIZE;
10146}
10147
a538e2d5 10148void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10149 struct wireless_dev *wdev)
a538e2d5
JB		 10150{
10151 struct sk_buff *msg;
10152
58050fce 10153 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10154 if (!msg)
10155 return;
10156
fd014284 10157 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10158 NL80211_CMD_TRIGGER_SCAN) < 0) {
10159 nlmsg_free(msg);
10160 return;
10161 }
10162
68eb5503 10163 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10164 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10165}
10166
f9d15d16
JB		 10167struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10168 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10169{
10170 struct sk_buff *msg;
10171
fd2120ca 10172 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10173 if (!msg)
f9d15d16 10174 return NULL;
2a519311 10175
fd014284 10176 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10177 aborted ? NL80211_CMD_SCAN_ABORTED :
10178 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10179 nlmsg_free(msg);
f9d15d16 10180 return NULL;
2a519311
JB		 10181 }
10182
f9d15d16 10183 return msg;
2a519311
JB		 10184}
10185
f9d15d16
JB		 10186void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10187 struct sk_buff *msg)
2a519311 10188{
2a519311
JB		 10189 if (!msg)
10190 return;
10191
68eb5503 10192 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10193 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10194}
10195
807f8a8c
LC		 10196void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10197 struct net_device *netdev)
10198{
10199 struct sk_buff *msg;
10200
10201 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10202 if (!msg)
10203 return;
10204
10205 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10206 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10207 nlmsg_free(msg);
10208 return;
10209 }
10210
68eb5503 10211 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10212 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10213}
10214
10215void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10216 struct net_device *netdev, u32 cmd)
10217{
10218 struct sk_buff *msg;
10219
58050fce 10220 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10221 if (!msg)
10222 return;
10223
10224 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10225 nlmsg_free(msg);
10226 return;
10227 }
10228
68eb5503 10229 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10230 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10231}
10232
73d54c9e
LR		 10233/*
10234 * This can happen on global regulatory changes or device specific settings
10235 * based on custom world regulatory domains.
10236 */
10237void nl80211_send_reg_change_event(struct regulatory_request *request)
10238{
10239 struct sk_buff *msg;
10240 void *hdr;
10241
fd2120ca 10242 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10243 if (!msg)
10244 return;
10245
10246 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10247 if (!hdr) {
10248 nlmsg_free(msg);
10249 return;
10250 }
10251
10252 /* Userspace can always count this one always being set */
9360ffd1
DM		 10253 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10254 goto nla_put_failure;
10255
10256 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10257 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10258 NL80211_REGDOM_TYPE_WORLD))
10259 goto nla_put_failure;
10260 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10261 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10262 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10263 goto nla_put_failure;
10264 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10265 request->intersect) {
10266 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10267 NL80211_REGDOM_TYPE_INTERSECTION))
10268 goto nla_put_failure;
10269 } else {
10270 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10271 NL80211_REGDOM_TYPE_COUNTRY) ||
10272 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10273 request->alpha2))
10274 goto nla_put_failure;
10275 }
10276
f4173766 10277 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10278 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10279 goto nla_put_failure;
73d54c9e 10280
3b7b72ee 10281 genlmsg_end(msg, hdr);
73d54c9e 10282
bc43b28c 10283 rcu_read_lock();
68eb5503 10284 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10285 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10286 rcu_read_unlock();
73d54c9e
LR		 10287
10288 return;
10289
10290nla_put_failure:
10291 genlmsg_cancel(msg, hdr);
10292 nlmsg_free(msg);
10293}
10294
6039f6d2
JM		 10295static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10296 struct net_device *netdev,
10297 const u8 *buf, size_t len,
e6d6e342 10298 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10299{
10300 struct sk_buff *msg;
10301 void *hdr;
10302
e6d6e342 10303 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10304 if (!msg)
10305 return;
10306
10307 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10308 if (!hdr) {
10309 nlmsg_free(msg);
10310 return;
10311 }
10312
9360ffd1
DM		 10313 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10314 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10315 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10316 goto nla_put_failure;
6039f6d2 10317
3b7b72ee 10318 genlmsg_end(msg, hdr);
6039f6d2 10319
68eb5503 10320 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10321 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10322 return;
10323
10324 nla_put_failure:
10325 genlmsg_cancel(msg, hdr);
10326 nlmsg_free(msg);
10327}
10328
10329void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10330 struct net_device *netdev, const u8 *buf,
10331 size_t len, gfp_t gfp)
6039f6d2
JM		 10332{
10333 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10334 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10335}
10336
10337void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10338 struct net_device *netdev, const u8 *buf,
e6d6e342 10339 size_t len, gfp_t gfp)
6039f6d2 10340{
e6d6e342
JB		 10341 nl80211_send_mlme_event(rdev, netdev, buf, len,
10342 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10343}
10344
53b46b84 10345void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10346 struct net_device *netdev, const u8 *buf,
10347 size_t len, gfp_t gfp)
6039f6d2
JM		 10348{
10349 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10350 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10351}
10352
53b46b84
JM		 10353void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10354 struct net_device *netdev, const u8 *buf,
e6d6e342 10355 size_t len, gfp_t gfp)
6039f6d2
JM		 10356{
10357 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10358 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10359}
10360
6ff57cf8
JB		 10361void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10362 size_t len)
cf4e594e 10363{
947add36
JB		 10364 struct wireless_dev *wdev = dev->ieee80211_ptr;
10365 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10366 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10367 const struct ieee80211_mgmt *mgmt = (void *)buf;
10368 u32 cmd;
947add36 10369
6ff57cf8
JB		 10370 if (WARN_ON(len < 2))
10371 return;
cf4e594e 10372
6ff57cf8
JB		 10373 if (ieee80211_is_deauth(mgmt->frame_control))
10374 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10375 else
10376 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10377
6ff57cf8
JB		 10378 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10379 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10380}
6ff57cf8 10381EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10382
1b06bb40
LR		 10383static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10384 struct net_device *netdev, int cmd,
e6d6e342 10385 const u8 *addr, gfp_t gfp)
1965c853
JM		 10386{
10387 struct sk_buff *msg;
10388 void *hdr;
10389
e6d6e342 10390 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10391 if (!msg)
10392 return;
10393
10394 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10395 if (!hdr) {
10396 nlmsg_free(msg);
10397 return;
10398 }
10399
9360ffd1
DM		 10400 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10401 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10402 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10403 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10404 goto nla_put_failure;
1965c853 10405
3b7b72ee 10406 genlmsg_end(msg, hdr);
1965c853 10407
68eb5503 10408 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10409 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10410 return;
10411
10412 nla_put_failure:
10413 genlmsg_cancel(msg, hdr);
10414 nlmsg_free(msg);
10415}
10416
10417void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10418 struct net_device *netdev, const u8 *addr,
10419 gfp_t gfp)
1965c853
JM		 10420{
10421 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10422 addr, gfp);
1965c853
JM		 10423}
10424
10425void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10426 struct net_device *netdev, const u8 *addr,
10427 gfp_t gfp)
1965c853 10428{
e6d6e342
JB		 10429 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10430 addr, gfp);
1965c853
JM		 10431}
10432
b23aa676
SO		 10433void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10434 struct net_device *netdev, const u8 *bssid,
10435 const u8 *req_ie, size_t req_ie_len,
10436 const u8 *resp_ie, size_t resp_ie_len,
10437 u16 status, gfp_t gfp)
10438{
10439 struct sk_buff *msg;
10440 void *hdr;
10441
58050fce 10442 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10443 if (!msg)
10444 return;
10445
10446 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10447 if (!hdr) {
10448 nlmsg_free(msg);
10449 return;
10450 }
10451
9360ffd1
DM		 10452 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10453 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10454 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10455 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10456 (req_ie &&
10457 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10458 (resp_ie &&
10459 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10460 goto nla_put_failure;
b23aa676 10461
3b7b72ee 10462 genlmsg_end(msg, hdr);
b23aa676 10463
68eb5503 10464 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10465 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10466 return;
10467
10468 nla_put_failure:
10469 genlmsg_cancel(msg, hdr);
10470 nlmsg_free(msg);
10471
10472}
10473
10474void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10475 struct net_device *netdev, const u8 *bssid,
10476 const u8 *req_ie, size_t req_ie_len,
10477 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10478{
10479 struct sk_buff *msg;
10480 void *hdr;
10481
58050fce 10482 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10483 if (!msg)
10484 return;
10485
10486 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10487 if (!hdr) {
10488 nlmsg_free(msg);
10489 return;
10490 }
10491
9360ffd1
DM		 10492 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10493 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10494 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10495 (req_ie &&
10496 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10497 (resp_ie &&
10498 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10499 goto nla_put_failure;
b23aa676 10500
3b7b72ee 10501 genlmsg_end(msg, hdr);
b23aa676 10502
68eb5503 10503 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10504 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10505 return;
10506
10507 nla_put_failure:
10508 genlmsg_cancel(msg, hdr);
10509 nlmsg_free(msg);
10510
10511}
10512
10513void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10514 struct net_device *netdev, u16 reason,
667503dd 10515 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10516{
10517 struct sk_buff *msg;
10518 void *hdr;
10519
58050fce 10520 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10521 if (!msg)
10522 return;
10523
10524 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10525 if (!hdr) {
10526 nlmsg_free(msg);
10527 return;
10528 }
10529
9360ffd1
DM		 10530 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10531 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10532 (from_ap && reason &&
10533 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10534 (from_ap &&
10535 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10536 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10537 goto nla_put_failure;
b23aa676 10538
3b7b72ee 10539 genlmsg_end(msg, hdr);
b23aa676 10540
68eb5503 10541 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10542 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10543 return;
10544
10545 nla_put_failure:
10546 genlmsg_cancel(msg, hdr);
10547 nlmsg_free(msg);
10548
10549}
10550
04a773ad
JB		 10551void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10552 struct net_device *netdev, const u8 *bssid,
10553 gfp_t gfp)
10554{
10555 struct sk_buff *msg;
10556 void *hdr;
10557
fd2120ca 10558 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10559 if (!msg)
10560 return;
10561
10562 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10563 if (!hdr) {
10564 nlmsg_free(msg);
10565 return;
10566 }
10567
9360ffd1
DM		 10568 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10569 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10570 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10571 goto nla_put_failure;
04a773ad 10572
3b7b72ee 10573 genlmsg_end(msg, hdr);
04a773ad 10574
68eb5503 10575 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10576 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10577 return;
10578
10579 nla_put_failure:
10580 genlmsg_cancel(msg, hdr);
10581 nlmsg_free(msg);
10582}
10583
947add36
JB		 10584void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10585 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10586{
947add36 10587 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10588 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 10589 struct sk_buff *msg;
10590 void *hdr;
10591
947add36
JB		 10592 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10593 return;
10594
10595 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10596
c93b5e71
JC		 10597 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10598 if (!msg)
10599 return;
10600
10601 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10602 if (!hdr) {
10603 nlmsg_free(msg);
10604 return;
10605 }
10606
9360ffd1 10607 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10608 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10609 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10610 (ie_len && ie &&
10611 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10612 goto nla_put_failure;
c93b5e71 10613
3b7b72ee 10614 genlmsg_end(msg, hdr);
c93b5e71 10615
68eb5503 10616 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10617 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10618 return;
10619
10620 nla_put_failure:
10621 genlmsg_cancel(msg, hdr);
10622 nlmsg_free(msg);
10623}
947add36 10624EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10625
a3b8b056
JM		 10626void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10627 struct net_device *netdev, const u8 *addr,
10628 enum nl80211_key_type key_type, int key_id,
e6d6e342 10629 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10630{
10631 struct sk_buff *msg;
10632 void *hdr;
10633
e6d6e342 10634 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10635 if (!msg)
10636 return;
10637
10638 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10639 if (!hdr) {
10640 nlmsg_free(msg);
10641 return;
10642 }
10643
9360ffd1
DM		 10644 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10645 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10646 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10647 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10648 (key_id != -1 &&
10649 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10650 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10651 goto nla_put_failure;
a3b8b056 10652
3b7b72ee 10653 genlmsg_end(msg, hdr);
a3b8b056 10654
68eb5503 10655 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10656 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10657 return;
10658
10659 nla_put_failure:
10660 genlmsg_cancel(msg, hdr);
10661 nlmsg_free(msg);
10662}
10663
6bad8766
LR		 10664void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10665 struct ieee80211_channel *channel_before,
10666 struct ieee80211_channel *channel_after)
10667{
10668 struct sk_buff *msg;
10669 void *hdr;
10670 struct nlattr *nl_freq;
10671
fd2120ca 10672 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10673 if (!msg)
10674 return;
10675
10676 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10677 if (!hdr) {
10678 nlmsg_free(msg);
10679 return;
10680 }
10681
10682 /*
10683 * Since we are applying the beacon hint to a wiphy we know its
10684 * wiphy_idx is valid
10685 */
9360ffd1
DM		 10686 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10687 goto nla_put_failure;
6bad8766
LR		 10688
10689 /* Before */
10690 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10691 if (!nl_freq)
10692 goto nla_put_failure;
cdc89b97 10693 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10694 goto nla_put_failure;
10695 nla_nest_end(msg, nl_freq);
10696
10697 /* After */
10698 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10699 if (!nl_freq)
10700 goto nla_put_failure;
cdc89b97 10701 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10702 goto nla_put_failure;
10703 nla_nest_end(msg, nl_freq);
10704
3b7b72ee 10705 genlmsg_end(msg, hdr);
6bad8766 10706
463d0183 10707 rcu_read_lock();
68eb5503 10708 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10709 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10710 rcu_read_unlock();
6bad8766
LR		 10711
10712 return;
10713
10714nla_put_failure:
10715 genlmsg_cancel(msg, hdr);
10716 nlmsg_free(msg);
10717}
10718
9588bbd5
JM		 10719static void nl80211_send_remain_on_chan_event(
10720 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10721 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10722 struct ieee80211_channel *chan,
9588bbd5
JM		 10723 unsigned int duration, gfp_t gfp)
10724{
10725 struct sk_buff *msg;
10726 void *hdr;
10727
10728 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10729 if (!msg)
10730 return;
10731
10732 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10733 if (!hdr) {
10734 nlmsg_free(msg);
10735 return;
10736 }
10737
9360ffd1 10738 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10739 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10740 wdev->netdev->ifindex)) ||
00f53350 10741 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10742 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10743 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10744 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10745 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10746 goto nla_put_failure;
9588bbd5 10747
9360ffd1
DM		 10748 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10749 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10750 goto nla_put_failure;
9588bbd5 10751
3b7b72ee 10752 genlmsg_end(msg, hdr);
9588bbd5 10753
68eb5503 10754 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10755 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10756 return;
10757
10758 nla_put_failure:
10759 genlmsg_cancel(msg, hdr);
10760 nlmsg_free(msg);
10761}
10762
947add36
JB		 10763void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10764 struct ieee80211_channel *chan,
10765 unsigned int duration, gfp_t gfp)
9588bbd5 10766{
947add36 10767 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10768 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10769
10770 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10771 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10772 rdev, wdev, cookie, chan,
42d97a59 10773 duration, gfp);
9588bbd5 10774}
947add36 10775EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10776
947add36
JB		 10777void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10778 struct ieee80211_channel *chan,
10779 gfp_t gfp)
9588bbd5 10780{
947add36 10781 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10782 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10783
10784 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10785 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10786 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10787}
947add36 10788EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10789
947add36
JB		 10790void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10791 struct station_info *sinfo, gfp_t gfp)
98b62183 10792{
947add36 10793 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10794 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 10795 struct sk_buff *msg;
10796
947add36
JB		 10797 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10798
58050fce 10799 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10800 if (!msg)
10801 return;
10802
66266b3a
JL		 10803 if (nl80211_send_station(msg, 0, 0, 0,
10804 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10805 nlmsg_free(msg);
10806 return;
10807 }
10808
68eb5503 10809 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10810 NL80211_MCGRP_MLME, gfp);
98b62183 10811}
947add36 10812EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10813
947add36 10814void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10815{
947add36 10816 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10817 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 10818 struct sk_buff *msg;
10819 void *hdr;
10820
947add36
JB		 10821 trace_cfg80211_del_sta(dev, mac_addr);
10822
58050fce 10823 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10824 if (!msg)
10825 return;
10826
10827 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10828 if (!hdr) {
10829 nlmsg_free(msg);
10830 return;
10831 }
10832
9360ffd1
DM		 10833 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10834 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10835 goto nla_put_failure;
ec15e68b 10836
3b7b72ee 10837 genlmsg_end(msg, hdr);
ec15e68b 10838
68eb5503 10839 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10840 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10841 return;
10842
10843 nla_put_failure:
10844 genlmsg_cancel(msg, hdr);
10845 nlmsg_free(msg);
10846}
947add36 10847EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10848
947add36
JB		 10849void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10850 enum nl80211_connect_failed_reason reason,
10851 gfp_t gfp)
ed44a951 10852{
947add36 10853 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10854 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 10855 struct sk_buff *msg;
10856 void *hdr;
10857
10858 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10859 if (!msg)
10860 return;
10861
10862 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10863 if (!hdr) {
10864 nlmsg_free(msg);
10865 return;
10866 }
10867
10868 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10869 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10870 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10871 goto nla_put_failure;
10872
10873 genlmsg_end(msg, hdr);
10874
68eb5503 10875 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10876 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10877 return;
10878
10879 nla_put_failure:
10880 genlmsg_cancel(msg, hdr);
10881 nlmsg_free(msg);
10882}
947add36 10883EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10884
b92ab5d8
JB		 10885static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10886 const u8 *addr, gfp_t gfp)
28946da7
JB		 10887{
10888 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10889 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 10890 struct sk_buff *msg;
10891 void *hdr;
15e47304 10892 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10893
15e47304 10894 if (!nlportid)
28946da7
JB		 10895 return false;
10896
10897 msg = nlmsg_new(100, gfp);
10898 if (!msg)
10899 return true;
10900
b92ab5d8 10901 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10902 if (!hdr) {
10903 nlmsg_free(msg);
10904 return true;
10905 }
10906
9360ffd1
DM		 10907 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10908 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10909 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10910 goto nla_put_failure;
28946da7 10911
9c90a9f6 10912 genlmsg_end(msg, hdr);
15e47304 10913 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10914 return true;
10915
10916 nla_put_failure:
10917 genlmsg_cancel(msg, hdr);
10918 nlmsg_free(msg);
10919 return true;
10920}
10921
947add36
JB		 10922bool cfg80211_rx_spurious_frame(struct net_device *dev,
10923 const u8 *addr, gfp_t gfp)
b92ab5d8 10924{
947add36
JB		 10925 struct wireless_dev *wdev = dev->ieee80211_ptr;
10926 bool ret;
10927
10928 trace_cfg80211_rx_spurious_frame(dev, addr);
10929
10930 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10931 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10932 trace_cfg80211_return_bool(false);
10933 return false;
10934 }
10935 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10936 addr, gfp);
10937 trace_cfg80211_return_bool(ret);
10938 return ret;
b92ab5d8 10939}
947add36 10940EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10941
947add36
JB		 10942bool cfg80211_rx_unexpected_4addr_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_unexpected_4addr_frame(dev, addr);
10949
10950 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10951 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10952 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10953 trace_cfg80211_return_bool(false);
10954 return false;
10955 }
10956 ret = __nl80211_unexpected_frame(dev,
10957 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10958 addr, gfp);
10959 trace_cfg80211_return_bool(ret);
10960 return ret;
b92ab5d8 10961}
947add36 10962EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 10963
2e161f78 10964int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 10965 struct wireless_dev *wdev, u32 nlportid,
804483e9 10966 int freq, int sig_dbm,
19504cf5 10967 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 10968{
71bbc994 10969 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10970 struct sk_buff *msg;
10971 void *hdr;
026331c4
JM		 10972
10973 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10974 if (!msg)
10975 return -ENOMEM;
10976
2e161f78 10977 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 10978 if (!hdr) {
10979 nlmsg_free(msg);
10980 return -ENOMEM;
10981 }
10982
9360ffd1 10983 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10984 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10985 netdev->ifindex)) ||
a838490b 10986 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10987 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10988 (sig_dbm &&
10989 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 10990 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10991 (flags &&
10992 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 10993 goto nla_put_failure;
026331c4 10994
3b7b72ee 10995 genlmsg_end(msg, hdr);
026331c4 10996
15e47304 10997 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 10998
10999 nla_put_failure:
11000 genlmsg_cancel(msg, hdr);
11001 nlmsg_free(msg);
11002 return -ENOBUFS;
11003}
11004
947add36
JB		 11005void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11006 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11007{
947add36 11008 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11009 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11010 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11011 struct sk_buff *msg;
11012 void *hdr;
11013
947add36
JB		 11014 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11015
026331c4
JM		 11016 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11017 if (!msg)
11018 return;
11019
2e161f78 11020 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11021 if (!hdr) {
11022 nlmsg_free(msg);
11023 return;
11024 }
11025
9360ffd1 11026 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11027 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11028 netdev->ifindex)) ||
a838490b 11029 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11030 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11031 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11032 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11033 goto nla_put_failure;
026331c4 11034
3b7b72ee 11035 genlmsg_end(msg, hdr);
026331c4 11036
68eb5503 11037 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11038 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11039 return;
11040
11041 nla_put_failure:
11042 genlmsg_cancel(msg, hdr);
11043 nlmsg_free(msg);
11044}
947add36 11045EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11046
947add36
JB		 11047void cfg80211_cqm_rssi_notify(struct net_device *dev,
11048 enum nl80211_cqm_rssi_threshold_event rssi_event,
11049 gfp_t gfp)
d6dc1a38 11050{
947add36
JB		 11051 struct wireless_dev *wdev = dev->ieee80211_ptr;
11052 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11053 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11054 struct sk_buff *msg;
11055 struct nlattr *pinfoattr;
11056 void *hdr;
11057
947add36
JB		 11058 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11059
58050fce 11060 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11061 if (!msg)
11062 return;
11063
11064 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11065 if (!hdr) {
11066 nlmsg_free(msg);
11067 return;
11068 }
11069
9360ffd1 11070 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11071 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11072 goto nla_put_failure;
d6dc1a38
JO		 11073
11074 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11075 if (!pinfoattr)
11076 goto nla_put_failure;
11077
9360ffd1
DM		 11078 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11079 rssi_event))
11080 goto nla_put_failure;
d6dc1a38
JO		 11081
11082 nla_nest_end(msg, pinfoattr);
11083
3b7b72ee 11084 genlmsg_end(msg, hdr);
d6dc1a38 11085
68eb5503 11086 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11087 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11088 return;
11089
11090 nla_put_failure:
11091 genlmsg_cancel(msg, hdr);
11092 nlmsg_free(msg);
11093}
947add36 11094EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11095
947add36
JB		 11096static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11097 struct net_device *netdev, const u8 *bssid,
11098 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11099{
11100 struct sk_buff *msg;
11101 struct nlattr *rekey_attr;
11102 void *hdr;
11103
58050fce 11104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11105 if (!msg)
11106 return;
11107
11108 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11109 if (!hdr) {
11110 nlmsg_free(msg);
11111 return;
11112 }
11113
9360ffd1
DM		 11114 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11115 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11116 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11117 goto nla_put_failure;
e5497d76
JB		 11118
11119 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11120 if (!rekey_attr)
11121 goto nla_put_failure;
11122
9360ffd1
DM		 11123 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11124 NL80211_REPLAY_CTR_LEN, replay_ctr))
11125 goto nla_put_failure;
e5497d76
JB		 11126
11127 nla_nest_end(msg, rekey_attr);
11128
3b7b72ee 11129 genlmsg_end(msg, hdr);
e5497d76 11130
68eb5503 11131 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11132 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11133 return;
11134
11135 nla_put_failure:
11136 genlmsg_cancel(msg, hdr);
11137 nlmsg_free(msg);
11138}
11139
947add36
JB		 11140void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11141 const u8 *replay_ctr, gfp_t gfp)
11142{
11143 struct wireless_dev *wdev = dev->ieee80211_ptr;
11144 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11145 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11146
11147 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11148 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11149}
11150EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11151
11152static void
11153nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11154 struct net_device *netdev, int index,
11155 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11156{
11157 struct sk_buff *msg;
11158 struct nlattr *attr;
11159 void *hdr;
11160
58050fce 11161 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11162 if (!msg)
11163 return;
11164
11165 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11166 if (!hdr) {
11167 nlmsg_free(msg);
11168 return;
11169 }
11170
9360ffd1
DM		 11171 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11172 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11173 goto nla_put_failure;
c9df56b4
JM		 11174
11175 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11176 if (!attr)
11177 goto nla_put_failure;
11178
9360ffd1
DM		 11179 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11180 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11181 (preauth &&
11182 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11183 goto nla_put_failure;
c9df56b4
JM		 11184
11185 nla_nest_end(msg, attr);
11186
3b7b72ee 11187 genlmsg_end(msg, hdr);
c9df56b4 11188
68eb5503 11189 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11190 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11191 return;
11192
11193 nla_put_failure:
11194 genlmsg_cancel(msg, hdr);
11195 nlmsg_free(msg);
11196}
11197
947add36
JB		 11198void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11199 const u8 *bssid, bool preauth, gfp_t gfp)
11200{
11201 struct wireless_dev *wdev = dev->ieee80211_ptr;
11202 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11203 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11204
11205 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11206 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11207}
11208EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11209
11210static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11211 struct net_device *netdev,
11212 struct cfg80211_chan_def *chandef,
11213 gfp_t gfp)
5314526b
TP		 11214{
11215 struct sk_buff *msg;
11216 void *hdr;
11217
58050fce 11218 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11219 if (!msg)
11220 return;
11221
11222 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11223 if (!hdr) {
11224 nlmsg_free(msg);
11225 return;
11226 }
11227
683b6d3b
JB		 11228 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11229 goto nla_put_failure;
11230
11231 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11232 goto nla_put_failure;
5314526b
TP		 11233
11234 genlmsg_end(msg, hdr);
11235
68eb5503 11236 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11237 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11238 return;
11239
11240 nla_put_failure:
11241 genlmsg_cancel(msg, hdr);
11242 nlmsg_free(msg);
11243}
11244
947add36
JB		 11245void cfg80211_ch_switch_notify(struct net_device *dev,
11246 struct cfg80211_chan_def *chandef)
84f10708 11247{
947add36
JB		 11248 struct wireless_dev *wdev = dev->ieee80211_ptr;
11249 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11250 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11251
e487eaeb 11252 ASSERT_WDEV_LOCK(wdev);
947add36 11253
e487eaeb 11254 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11255
11256 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11257 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11258 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11259 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11260 return;
947add36 11261
9e0e2961 11262 wdev->chandef = *chandef;
96f55f12 11263 wdev->preset_chandef = *chandef;
947add36 11264 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11265}
11266EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11267
11268void cfg80211_cqm_txe_notify(struct net_device *dev,
11269 const u8 *peer, u32 num_packets,
11270 u32 rate, u32 intvl, gfp_t gfp)
11271{
11272 struct wireless_dev *wdev = dev->ieee80211_ptr;
11273 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11274 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11275 struct sk_buff *msg;
11276 struct nlattr *pinfoattr;
11277 void *hdr;
11278
11279 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11280 if (!msg)
11281 return;
11282
11283 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11284 if (!hdr) {
11285 nlmsg_free(msg);
11286 return;
11287 }
11288
11289 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11290 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11291 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11292 goto nla_put_failure;
11293
11294 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11295 if (!pinfoattr)
11296 goto nla_put_failure;
11297
11298 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11299 goto nla_put_failure;
11300
11301 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11302 goto nla_put_failure;
11303
11304 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11305 goto nla_put_failure;
11306
11307 nla_nest_end(msg, pinfoattr);
11308
11309 genlmsg_end(msg, hdr);
11310
68eb5503 11311 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11312 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11313 return;
11314
11315 nla_put_failure:
11316 genlmsg_cancel(msg, hdr);
11317 nlmsg_free(msg);
11318}
947add36 11319EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11320
04f39047
SW		 11321void
11322nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11323 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11324 enum nl80211_radar_event event,
11325 struct net_device *netdev, gfp_t gfp)
11326{
11327 struct sk_buff *msg;
11328 void *hdr;
11329
11330 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11331 if (!msg)
11332 return;
11333
11334 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11335 if (!hdr) {
11336 nlmsg_free(msg);
11337 return;
11338 }
11339
11340 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11341 goto nla_put_failure;
11342
11343 /* NOP and radar events don't need a netdev parameter */
11344 if (netdev) {
11345 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11346
11347 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11348 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11349 goto nla_put_failure;
11350 }
11351
11352 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11353 goto nla_put_failure;
11354
11355 if (nl80211_send_chandef(msg, chandef))
11356 goto nla_put_failure;
11357
9c90a9f6 11358 genlmsg_end(msg, hdr);
04f39047 11359
68eb5503 11360 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11361 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11362 return;
11363
11364 nla_put_failure:
11365 genlmsg_cancel(msg, hdr);
11366 nlmsg_free(msg);
11367}
11368
947add36
JB		 11369void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11370 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11371{
947add36
JB		 11372 struct wireless_dev *wdev = dev->ieee80211_ptr;
11373 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11374 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11375 struct sk_buff *msg;
11376 struct nlattr *pinfoattr;
11377 void *hdr;
11378
947add36
JB		 11379 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11380
58050fce 11381 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11382 if (!msg)
11383 return;
11384
11385 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11386 if (!hdr) {
11387 nlmsg_free(msg);
11388 return;
11389 }
11390
9360ffd1 11391 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11392 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11393 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11394 goto nla_put_failure;
c063dbf5
JB		 11395
11396 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11397 if (!pinfoattr)
11398 goto nla_put_failure;
11399
9360ffd1
DM		 11400 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11401 goto nla_put_failure;
c063dbf5
JB		 11402
11403 nla_nest_end(msg, pinfoattr);
11404
3b7b72ee 11405 genlmsg_end(msg, hdr);
c063dbf5 11406
68eb5503 11407 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11408 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11409 return;
11410
11411 nla_put_failure:
11412 genlmsg_cancel(msg, hdr);
11413 nlmsg_free(msg);
11414}
947add36 11415EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11416
7f6cf311
JB		 11417void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11418 u64 cookie, bool acked, gfp_t gfp)
11419{
11420 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11421 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 11422 struct sk_buff *msg;
11423 void *hdr;
7f6cf311 11424
4ee3e063
BL		 11425 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11426
58050fce 11427 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11428
7f6cf311
JB		 11429 if (!msg)
11430 return;
11431
11432 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11433 if (!hdr) {
11434 nlmsg_free(msg);
11435 return;
11436 }
11437
9360ffd1
DM		 11438 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11439 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11440 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11441 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11442 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11443 goto nla_put_failure;
7f6cf311 11444
9c90a9f6 11445 genlmsg_end(msg, hdr);
7f6cf311 11446
68eb5503 11447 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11448 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11449 return;
11450
11451 nla_put_failure:
11452 genlmsg_cancel(msg, hdr);
11453 nlmsg_free(msg);
11454}
11455EXPORT_SYMBOL(cfg80211_probe_status);
11456
5e760230
JB		 11457void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11458 const u8 *frame, size_t len,
37c73b5f 11459 int freq, int sig_dbm)
5e760230 11460{
f26cbf40 11461 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 11462 struct sk_buff *msg;
11463 void *hdr;
37c73b5f 11464 struct cfg80211_beacon_registration *reg;
5e760230 11465
4ee3e063
BL		 11466 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11467
37c73b5f
BG		 11468 spin_lock_bh(&rdev->beacon_registrations_lock);
11469 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11470 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11471 if (!msg) {
11472 spin_unlock_bh(&rdev->beacon_registrations_lock);
11473 return;
11474 }
5e760230 11475
37c73b5f
BG		 11476 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11477 if (!hdr)
11478 goto nla_put_failure;
5e760230 11479
37c73b5f
BG		 11480 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11481 (freq &&
11482 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11483 (sig_dbm &&
11484 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11485 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11486 goto nla_put_failure;
5e760230 11487
37c73b5f 11488 genlmsg_end(msg, hdr);
5e760230 11489
37c73b5f
BG		 11490 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11491 }
11492 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11493 return;
11494
11495 nla_put_failure:
37c73b5f
BG		 11496 spin_unlock_bh(&rdev->beacon_registrations_lock);
11497 if (hdr)
11498 genlmsg_cancel(msg, hdr);
5e760230
JB		 11499 nlmsg_free(msg);
11500}
11501EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11502
cd8f7cb4
JB		 11503#ifdef CONFIG_PM
11504void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11505 struct cfg80211_wowlan_wakeup *wakeup,
11506 gfp_t gfp)
11507{
f26cbf40 11508 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 11509 struct sk_buff *msg;
11510 void *hdr;
9c90a9f6 11511 int size = 200;
cd8f7cb4
JB		 11512
11513 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11514
11515 if (wakeup)
11516 size += wakeup->packet_present_len;
11517
11518 msg = nlmsg_new(size, gfp);
11519 if (!msg)
11520 return;
11521
11522 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11523 if (!hdr)
11524 goto free_msg;
11525
11526 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11527 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11528 goto free_msg;
11529
11530 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11531 wdev->netdev->ifindex))
11532 goto free_msg;
11533
11534 if (wakeup) {
11535 struct nlattr *reasons;
11536
11537 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11538 if (!reasons)
11539 goto free_msg;
cd8f7cb4
JB		 11540
11541 if (wakeup->disconnect &&
11542 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11543 goto free_msg;
11544 if (wakeup->magic_pkt &&
11545 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11546 goto free_msg;
11547 if (wakeup->gtk_rekey_failure &&
11548 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11549 goto free_msg;
11550 if (wakeup->eap_identity_req &&
11551 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11552 goto free_msg;
11553 if (wakeup->four_way_handshake &&
11554 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11555 goto free_msg;
11556 if (wakeup->rfkill_release &&
11557 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11558 goto free_msg;
11559
11560 if (wakeup->pattern_idx >= 0 &&
11561 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11562 wakeup->pattern_idx))
11563 goto free_msg;
11564
ae917c9f
JB		 11565 if (wakeup->tcp_match &&
11566 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11567 goto free_msg;
2a0e047e 11568
ae917c9f
JB		 11569 if (wakeup->tcp_connlost &&
11570 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11571 goto free_msg;
2a0e047e 11572
ae917c9f
JB		 11573 if (wakeup->tcp_nomoretokens &&
11574 nla_put_flag(msg,
11575 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11576 goto free_msg;
2a0e047e 11577
cd8f7cb4
JB		 11578 if (wakeup->packet) {
11579 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11580 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11581
11582 if (!wakeup->packet_80211) {
11583 pkt_attr =
11584 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11585 len_attr =
11586 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11587 }
11588
11589 if (wakeup->packet_len &&
11590 nla_put_u32(msg, len_attr, wakeup->packet_len))
11591 goto free_msg;
11592
11593 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11594 wakeup->packet))
11595 goto free_msg;
11596 }
11597
11598 nla_nest_end(msg, reasons);
11599 }
11600
9c90a9f6 11601 genlmsg_end(msg, hdr);
cd8f7cb4 11602
68eb5503 11603 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11604 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11605 return;
11606
11607 free_msg:
11608 nlmsg_free(msg);
11609}
11610EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11611#endif
11612
3475b094
JM		 11613void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11614 enum nl80211_tdls_operation oper,
11615 u16 reason_code, gfp_t gfp)
11616{
11617 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11618 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 11619 struct sk_buff *msg;
11620 void *hdr;
3475b094
JM		 11621
11622 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11623 reason_code);
11624
11625 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11626 if (!msg)
11627 return;
11628
11629 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11630 if (!hdr) {
11631 nlmsg_free(msg);
11632 return;
11633 }
11634
11635 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11636 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11637 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11638 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11639 (reason_code > 0 &&
11640 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11641 goto nla_put_failure;
11642
9c90a9f6 11643 genlmsg_end(msg, hdr);
3475b094 11644
68eb5503 11645 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11646 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11647 return;
11648
11649 nla_put_failure:
11650 genlmsg_cancel(msg, hdr);
11651 nlmsg_free(msg);
11652}
11653EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11654
026331c4
JM		 11655static int nl80211_netlink_notify(struct notifier_block * nb,
11656 unsigned long state,
11657 void *_notify)
11658{
11659 struct netlink_notify *notify = _notify;
11660 struct cfg80211_registered_device *rdev;
11661 struct wireless_dev *wdev;
37c73b5f 11662 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11663
11664 if (state != NETLINK_URELEASE)
11665 return NOTIFY_DONE;
11666
11667 rcu_read_lock();
11668
5e760230 11669 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 11670 bool schedule_destroy_work = false;
11671
11672 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 11673 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 11674
78f22b6a
JB		 11675 if (wdev->owner_nlportid == notify->portid)
11676 schedule_destroy_work = true;
11677 }
11678
37c73b5f
BG		 11679 spin_lock_bh(&rdev->beacon_registrations_lock);
11680 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11681 list) {
11682 if (reg->nlportid == notify->portid) {
11683 list_del(&reg->list);
11684 kfree(reg);
11685 break;
11686 }
11687 }
11688 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 11689
11690 if (schedule_destroy_work) {
11691 struct cfg80211_iface_destroy *destroy;
11692
11693 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11694 if (destroy) {
11695 destroy->nlportid = notify->portid;
11696 spin_lock(&rdev->destroy_list_lock);
11697 list_add(&destroy->list, &rdev->destroy_list);
11698 spin_unlock(&rdev->destroy_list_lock);
11699 schedule_work(&rdev->destroy_work);
11700 }
11701 }
5e760230 11702 }
026331c4
JM		 11703
11704 rcu_read_unlock();
11705
6784c7db 11706 return NOTIFY_OK;
026331c4
JM		 11707}
11708
11709static struct notifier_block nl80211_netlink_notifier = {
11710 .notifier_call = nl80211_netlink_notify,
11711};
11712
355199e0
JM		 11713void cfg80211_ft_event(struct net_device *netdev,
11714 struct cfg80211_ft_event_params *ft_event)
11715{
11716 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 11717 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 11718 struct sk_buff *msg;
11719 void *hdr;
355199e0
JM		 11720
11721 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11722
11723 if (!ft_event->target_ap)
11724 return;
11725
11726 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11727 if (!msg)
11728 return;
11729
11730 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11731 if (!hdr)
11732 goto out;
355199e0 11733
ae917c9f
JB		 11734 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11735 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11736 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11737 goto out;
355199e0 11738
ae917c9f
JB		 11739 if (ft_event->ies &&
11740 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11741 goto out;
11742 if (ft_event->ric_ies &&
11743 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11744 ft_event->ric_ies))
11745 goto out;
355199e0 11746
9c90a9f6 11747 genlmsg_end(msg, hdr);
355199e0 11748
68eb5503 11749 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11750 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11751 return;
11752 out:
11753 nlmsg_free(msg);
355199e0
JM		 11754}
11755EXPORT_SYMBOL(cfg80211_ft_event);
11756
5de17984
AS		 11757void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11758{
11759 struct cfg80211_registered_device *rdev;
11760 struct sk_buff *msg;
11761 void *hdr;
11762 u32 nlportid;
11763
f26cbf40 11764 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 11765 if (!rdev->crit_proto_nlportid)
11766 return;
11767
11768 nlportid = rdev->crit_proto_nlportid;
11769 rdev->crit_proto_nlportid = 0;
11770
11771 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11772 if (!msg)
11773 return;
11774
11775 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11776 if (!hdr)
11777 goto nla_put_failure;
11778
11779 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11780 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11781 goto nla_put_failure;
11782
11783 genlmsg_end(msg, hdr);
11784
11785 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11786 return;
11787
11788 nla_put_failure:
11789 if (hdr)
11790 genlmsg_cancel(msg, hdr);
11791 nlmsg_free(msg);
11792
11793}
11794EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11795
348baf0e
JB		 11796void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11797{
11798 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11799 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 11800 struct sk_buff *msg;
11801 void *hdr;
11802
11803 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11804 if (!msg)
11805 return;
11806
11807 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11808 if (!hdr)
11809 goto out;
11810
11811 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11812 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11813 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11814 goto out;
11815
11816 genlmsg_end(msg, hdr);
11817
11818 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11819 NL80211_MCGRP_MLME, GFP_KERNEL);
11820 return;
11821 out:
11822 nlmsg_free(msg);
11823}
11824
55682965
JB		 11825/* initialisation/exit functions */
11826
11827int nl80211_init(void)
11828{
0d63cbb5 11829 int err;
55682965 11830
2a94fe48
JB		 11831 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11832 nl80211_mcgrps);
55682965
JB		 11833 if (err)
11834 return err;
11835
026331c4
JM		 11836 err = netlink_register_notifier(&nl80211_netlink_notifier);
11837 if (err)
11838 goto err_out;
11839
55682965
JB		 11840 return 0;
11841 err_out:
11842 genl_unregister_family(&nl80211_fam);
11843 return err;
11844}
11845
11846void nl80211_exit(void)
11847{
026331c4 11848 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11849 genl_unregister_family(&nl80211_fam);
11850}
Linux kernel - Deliverables
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