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cfg80211: Add Kconfig option for cellular BS hints
[linux-block.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
f84f771d 33static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 34 struct genl_info *info);
f84f771d 35static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
fb4e1568
MH		 40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
55682965 44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
2a94fe48
JB		 50/* multicast groups */
51enum nl80211_multicast_groups {
52 NL80211_MCGRP_CONFIG,
53 NL80211_MCGRP_SCAN,
54 NL80211_MCGRP_REGULATORY,
55 NL80211_MCGRP_MLME,
567ffc35 56 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 57 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
58};
59
60static const struct genl_multicast_group nl80211_mcgrps[] = {
61 [NL80211_MCGRP_CONFIG] = { .name = "config", },
62 [NL80211_MCGRP_SCAN] = { .name = "scan", },
63 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
64 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 65 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 66#ifdef CONFIG_NL80211_TESTMODE
67 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
68#endif
69};
70
89a54e48
JB		 71/* returns ERR_PTR values */
72static struct wireless_dev *
73__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 74{
89a54e48
JB		 75 struct cfg80211_registered_device *rdev;
76 struct wireless_dev *result = NULL;
77 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
78 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
79 u64 wdev_id;
80 int wiphy_idx = -1;
81 int ifidx = -1;
55682965 82
5fe231e8 83 ASSERT_RTNL();
55682965 84
89a54e48
JB		 85 if (!have_ifidx && !have_wdev_id)
86 return ERR_PTR(-EINVAL);
55682965 87
89a54e48
JB		 88 if (have_ifidx)
89 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
90 if (have_wdev_id) {
91 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
92 wiphy_idx = wdev_id >> 32;
55682965
JB		 93 }
94
89a54e48
JB		 95 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
96 struct wireless_dev *wdev;
97
98 if (wiphy_net(&rdev->wiphy) != netns)
99 continue;
100
101 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
102 continue;
103
89a54e48
JB		 104 list_for_each_entry(wdev, &rdev->wdev_list, list) {
105 if (have_ifidx && wdev->netdev &&
106 wdev->netdev->ifindex == ifidx) {
107 result = wdev;
108 break;
109 }
110 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
111 result = wdev;
112 break;
113 }
114 }
89a54e48
JB		 115
116 if (result)
117 break;
118 }
119
120 if (result)
121 return result;
122 return ERR_PTR(-ENODEV);
55682965
JB		 123}
124
a9455408 125static struct cfg80211_registered_device *
878d9ec7 126__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 127{
7fee4778
JB		 128 struct cfg80211_registered_device *rdev = NULL, *tmp;
129 struct net_device *netdev;
a9455408 130
5fe231e8 131 ASSERT_RTNL();
a9455408 132
878d9ec7 133 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 134 !attrs[NL80211_ATTR_IFINDEX] &&
135 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 136 return ERR_PTR(-EINVAL);
137
878d9ec7 138 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 139 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 140 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 141
89a54e48
JB		 142 if (attrs[NL80211_ATTR_WDEV]) {
143 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
144 struct wireless_dev *wdev;
145 bool found = false;
146
147 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
148 if (tmp) {
149 /* make sure wdev exists */
89a54e48
JB		 150 list_for_each_entry(wdev, &tmp->wdev_list, list) {
151 if (wdev->identifier != (u32)wdev_id)
152 continue;
153 found = true;
154 break;
155 }
89a54e48
JB		 156
157 if (!found)
158 tmp = NULL;
159
160 if (rdev && tmp != rdev)
161 return ERR_PTR(-EINVAL);
162 rdev = tmp;
163 }
164 }
165
878d9ec7
JB		 166 if (attrs[NL80211_ATTR_IFINDEX]) {
167 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 168 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 169 if (netdev) {
170 if (netdev->ieee80211_ptr)
171 tmp = wiphy_to_dev(
172 netdev->ieee80211_ptr->wiphy);
173 else
174 tmp = NULL;
175
7fee4778
JB		 176 /* not wireless device -- return error */
177 if (!tmp)
178 return ERR_PTR(-EINVAL);
179
180 /* mismatch -- return error */
181 if (rdev && tmp != rdev)
182 return ERR_PTR(-EINVAL);
183
184 rdev = tmp;
a9455408 185 }
a9455408 186 }
a9455408 187
4f7eff10
JB		 188 if (!rdev)
189 return ERR_PTR(-ENODEV);
a9455408 190
4f7eff10
JB		 191 if (netns != wiphy_net(&rdev->wiphy))
192 return ERR_PTR(-ENODEV);
193
194 return rdev;
a9455408
JB		 195}
196
197/*
198 * This function returns a pointer to the driver
199 * that the genl_info item that is passed refers to.
a9455408
JB		 200 *
201 * The result of this can be a PTR_ERR and hence must
202 * be checked with IS_ERR() for errors.
203 */
204static struct cfg80211_registered_device *
4f7eff10 205cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 206{
5fe231e8 207 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 208}
209
55682965 210/* policy for the attributes */
b54452b0 211static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 212 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
213 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 214 .len = 20-1 },
31888487 215 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 216
72bdcf34 217 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 218 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 219 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
220 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
222
b9a5f8ca
JM		 223 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
224 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
226 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 227 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 228
229 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
230 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
231 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 232
e007b857
EP		 233 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
234 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 235
b9454e83 236 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 237 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
238 .len = WLAN_MAX_KEY_LEN },
239 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
240 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
241 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 242 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 243 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 244
245 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
246 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
247 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
248 .len = IEEE80211_MAX_DATA_LEN },
249 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 251 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
252 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
253 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
255 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 256 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 257 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 258 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 259 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 260 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 261 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 262
b2e1b302
LR		 263 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
264 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
265
9f1ba906
JM		 266 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
267 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
268 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 269 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
270 .len = NL80211_MAX_SUPP_RATES },
50b12f59 271 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 272
24bdd9f4 273 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 274 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 275
6c739419 276 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 277
278 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
279 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
280 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 281 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
282 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 283
284 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_SSID_LEN },
286 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
287 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 288 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 289 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 290 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 291 [NL80211_ATTR_STA_FLAGS2] = {
292 .len = sizeof(struct nl80211_sta_flag_update),
293 },
3f77316c 294 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 295 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
296 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 297 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
298 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
299 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 300 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 301 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 302 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
303 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 304 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
305 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 306 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 307 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
308 .len = IEEE80211_MAX_DATA_LEN },
309 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 310 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 311 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 312 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 313 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 314 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
315 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 316 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 317 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 319 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 320 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 321 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 322 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 323 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 324 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 325 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 326 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 327 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 328 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
329 .len = IEEE80211_MAX_DATA_LEN },
330 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 332 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 333 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 334 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 335 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
336 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
337 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
339 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 340 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 341 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 343 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 344 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
346 .len = NL80211_HT_CAPABILITY_LEN
347 },
1d9d9213 348 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 349 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 350 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 351 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 352 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 353 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 354 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 355 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 356 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
357 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 358 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
359 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 360 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
361 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 362 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 363 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
364 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
365 .len = NL80211_VHT_CAPABILITY_LEN,
366 },
355199e0
JM		 367 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
368 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
369 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 370 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 371 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
372 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
373 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
374 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
375 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
c01fc9ad
SD		 376 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
377 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 378 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 379 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 380 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
381 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
382 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 383 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
384 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 385 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
386 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 387 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 388 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
55682965
JB		 389};
390
e31b8213 391/* policy for the key attributes */
b54452b0 392static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 393 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 394 [NL80211_KEY_IDX] = { .type = NLA_U8 },
395 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 396 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 397 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
398 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 399 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 400 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
401};
402
403/* policy for the key default flags */
404static const struct nla_policy
405nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
406 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
407 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 408};
409
ff1b6e69
JB		 410/* policy for WoWLAN attributes */
411static const struct nla_policy
412nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
413 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
414 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
415 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 417 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
418 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
420 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 421 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
422};
423
424static const struct nla_policy
425nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
426 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
427 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
428 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
429 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
430 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
431 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
432 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
433 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
434 },
435 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
436 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
437 },
438 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
439 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
440 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 441};
442
be29b99a
AK		 443/* policy for coalesce rule attributes */
444static const struct nla_policy
445nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
446 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
447 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
448 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
449};
450
e5497d76
JB		 451/* policy for GTK rekey offload attributes */
452static const struct nla_policy
453nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
454 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
455 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
456 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
457};
458
a1f1c21c
LC		 459static const struct nla_policy
460nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 461 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 462 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 463 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 464};
465
97990a06
JB		 466static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
467 struct netlink_callback *cb,
468 struct cfg80211_registered_device **rdev,
469 struct wireless_dev **wdev)
a043897a 470{
97990a06 471 int err;
a043897a 472
97990a06 473 rtnl_lock();
a043897a 474
97990a06
JB		 475 if (!cb->args[0]) {
476 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
477 nl80211_fam.attrbuf, nl80211_fam.maxattr,
478 nl80211_policy);
479 if (err)
480 goto out_unlock;
67748893 481
97990a06
JB		 482 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
483 nl80211_fam.attrbuf);
484 if (IS_ERR(*wdev)) {
485 err = PTR_ERR(*wdev);
486 goto out_unlock;
487 }
488 *rdev = wiphy_to_dev((*wdev)->wiphy);
c319d50b
JB		 489 /* 0 is the first index - add 1 to parse only once */
490 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 491 cb->args[1] = (*wdev)->identifier;
492 } else {
c319d50b
JB		 493 /* subtract the 1 again here */
494 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 495 struct wireless_dev *tmp;
67748893 496
97990a06
JB		 497 if (!wiphy) {
498 err = -ENODEV;
499 goto out_unlock;
500 }
501 *rdev = wiphy_to_dev(wiphy);
502 *wdev = NULL;
67748893 503
97990a06
JB		 504 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
505 if (tmp->identifier == cb->args[1]) {
506 *wdev = tmp;
507 break;
508 }
509 }
67748893 510
97990a06
JB		 511 if (!*wdev) {
512 err = -ENODEV;
513 goto out_unlock;
514 }
67748893
JB		 515 }
516
67748893 517 return 0;
97990a06 518 out_unlock:
67748893
JB		 519 rtnl_unlock();
520 return err;
521}
522
97990a06 523static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 524{
67748893
JB		 525 rtnl_unlock();
526}
527
f4a11bb0
JB		 528/* IE validation */
529static bool is_valid_ie_attr(const struct nlattr *attr)
530{
531 const u8 *pos;
532 int len;
533
534 if (!attr)
535 return true;
536
537 pos = nla_data(attr);
538 len = nla_len(attr);
539
540 while (len) {
541 u8 elemlen;
542
543 if (len < 2)
544 return false;
545 len -= 2;
546
547 elemlen = pos[1];
548 if (elemlen > len)
549 return false;
550
551 len -= elemlen;
552 pos += 2 + elemlen;
553 }
554
555 return true;
556}
557
55682965 558/* message building helper */
15e47304 559static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 560 int flags, u8 cmd)
561{
562 /* since there is no private header just add the generic one */
15e47304 563 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 564}
565
5dab3b8a 566static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 567 struct ieee80211_channel *chan,
568 bool large)
5dab3b8a 569{
9360ffd1
DM		 570 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
571 chan->center_freq))
572 goto nla_put_failure;
5dab3b8a 573
9360ffd1
DM		 574 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
575 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
576 goto nla_put_failure;
8fe02e16
LR		 577 if (chan->flags & IEEE80211_CHAN_NO_IR) {
578 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
579 goto nla_put_failure;
580 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
581 goto nla_put_failure;
582 }
cdc89b97
JB		 583 if (chan->flags & IEEE80211_CHAN_RADAR) {
584 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
585 goto nla_put_failure;
586 if (large) {
587 u32 time;
588
589 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
590
591 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
592 chan->dfs_state))
593 goto nla_put_failure;
594 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
595 time))
596 goto nla_put_failure;
089027e5
JD		 597 if (nla_put_u32(msg,
598 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
599 chan->dfs_cac_ms))
600 goto nla_put_failure;
cdc89b97
JB		 601 }
602 }
5dab3b8a 603
fe1abafd
JB		 604 if (large) {
605 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
606 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
607 goto nla_put_failure;
608 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
609 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
610 goto nla_put_failure;
611 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
612 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
613 goto nla_put_failure;
614 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
615 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
616 goto nla_put_failure;
570dbde1
DS		 617 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
618 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
619 goto nla_put_failure;
620 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
621 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
622 goto nla_put_failure;
fe1abafd
JB		 623 }
624
9360ffd1
DM		 625 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
626 DBM_TO_MBM(chan->max_power)))
627 goto nla_put_failure;
5dab3b8a
LR		 628
629 return 0;
630
631 nla_put_failure:
632 return -ENOBUFS;
633}
634
55682965
JB		 635/* netlink command implementations */
636
b9454e83
JB		 637struct key_parse {
638 struct key_params p;
639 int idx;
e31b8213 640 int type;
b9454e83 641 bool def, defmgmt;
dbd2fd65 642 bool def_uni, def_multi;
b9454e83
JB		 643};
644
645static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
646{
647 struct nlattr *tb[NL80211_KEY_MAX + 1];
648 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
649 nl80211_key_policy);
650 if (err)
651 return err;
652
653 k->def = !!tb[NL80211_KEY_DEFAULT];
654 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
655
dbd2fd65
JB		 656 if (k->def) {
657 k->def_uni = true;
658 k->def_multi = true;
659 }
660 if (k->defmgmt)
661 k->def_multi = true;
662
b9454e83
JB		 663 if (tb[NL80211_KEY_IDX])
664 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
665
666 if (tb[NL80211_KEY_DATA]) {
667 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
668 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
669 }
670
671 if (tb[NL80211_KEY_SEQ]) {
672 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
673 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
674 }
675
676 if (tb[NL80211_KEY_CIPHER])
677 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
678
e31b8213
JB		 679 if (tb[NL80211_KEY_TYPE]) {
680 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
681 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
682 return -EINVAL;
683 }
684
dbd2fd65
JB		 685 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
686 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 687 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
688 tb[NL80211_KEY_DEFAULT_TYPES],
689 nl80211_key_default_policy);
dbd2fd65
JB		 690 if (err)
691 return err;
692
693 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
694 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
695 }
696
b9454e83
JB		 697 return 0;
698}
699
700static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
701{
702 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
703 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
704 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
705 }
706
707 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
708 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
709 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
710 }
711
712 if (info->attrs[NL80211_ATTR_KEY_IDX])
713 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
714
715 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
716 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
717
718 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
719 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
720
dbd2fd65
JB		 721 if (k->def) {
722 k->def_uni = true;
723 k->def_multi = true;
724 }
725 if (k->defmgmt)
726 k->def_multi = true;
727
e31b8213
JB		 728 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
729 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
730 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
731 return -EINVAL;
732 }
733
dbd2fd65
JB		 734 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
735 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
736 int err = nla_parse_nested(
737 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
738 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
739 nl80211_key_default_policy);
740 if (err)
741 return err;
742
743 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
744 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
745 }
746
b9454e83
JB		 747 return 0;
748}
749
750static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
751{
752 int err;
753
754 memset(k, 0, sizeof(*k));
755 k->idx = -1;
e31b8213 756 k->type = -1;
b9454e83
JB		 757
758 if (info->attrs[NL80211_ATTR_KEY])
759 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
760 else
761 err = nl80211_parse_key_old(info, k);
762
763 if (err)
764 return err;
765
766 if (k->def && k->defmgmt)
767 return -EINVAL;
768
dbd2fd65
JB		 769 if (k->defmgmt) {
770 if (k->def_uni || !k->def_multi)
771 return -EINVAL;
772 }
773
b9454e83
JB		 774 if (k->idx != -1) {
775 if (k->defmgmt) {
776 if (k->idx < 4 || k->idx > 5)
777 return -EINVAL;
778 } else if (k->def) {
779 if (k->idx < 0 || k->idx > 3)
780 return -EINVAL;
781 } else {
782 if (k->idx < 0 || k->idx > 5)
783 return -EINVAL;
784 }
785 }
786
787 return 0;
788}
789
fffd0934
JB		 790static struct cfg80211_cached_keys *
791nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 792 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 793{
794 struct key_parse parse;
795 struct nlattr *key;
796 struct cfg80211_cached_keys *result;
797 int rem, err, def = 0;
798
799 result = kzalloc(sizeof(*result), GFP_KERNEL);
800 if (!result)
801 return ERR_PTR(-ENOMEM);
802
803 result->def = -1;
804 result->defmgmt = -1;
805
806 nla_for_each_nested(key, keys, rem) {
807 memset(&parse, 0, sizeof(parse));
808 parse.idx = -1;
809
810 err = nl80211_parse_key_new(key, &parse);
811 if (err)
812 goto error;
813 err = -EINVAL;
814 if (!parse.p.key)
815 goto error;
816 if (parse.idx < 0 || parse.idx > 4)
817 goto error;
818 if (parse.def) {
819 if (def)
820 goto error;
821 def = 1;
822 result->def = parse.idx;
dbd2fd65
JB		 823 if (!parse.def_uni || !parse.def_multi)
824 goto error;
fffd0934
JB		 825 } else if (parse.defmgmt)
826 goto error;
827 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 828 parse.idx, false, NULL);
fffd0934
JB		 829 if (err)
830 goto error;
831 result->params[parse.idx].cipher = parse.p.cipher;
832 result->params[parse.idx].key_len = parse.p.key_len;
833 result->params[parse.idx].key = result->data[parse.idx];
834 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 835
836 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
837 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
838 if (no_ht)
839 *no_ht = true;
840 }
fffd0934
JB		 841 }
842
843 return result;
844 error:
845 kfree(result);
846 return ERR_PTR(err);
847}
848
849static int nl80211_key_allowed(struct wireless_dev *wdev)
850{
851 ASSERT_WDEV_LOCK(wdev);
852
fffd0934
JB		 853 switch (wdev->iftype) {
854 case NL80211_IFTYPE_AP:
855 case NL80211_IFTYPE_AP_VLAN:
074ac8df 856 case NL80211_IFTYPE_P2P_GO:
ff973af7 857 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 858 break;
859 case NL80211_IFTYPE_ADHOC:
fffd0934 860 case NL80211_IFTYPE_STATION:
074ac8df 861 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 862 if (!wdev->current_bss)
fffd0934
JB		 863 return -ENOLINK;
864 break;
865 default:
866 return -EINVAL;
867 }
868
869 return 0;
870}
871
664834de
JM		 872static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
873 struct nlattr *tb)
874{
875 struct ieee80211_channel *chan;
876
877 if (tb == NULL)
878 return NULL;
879 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
880 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
881 return NULL;
882 return chan;
883}
884
7527a782
JB		 885static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
886{
887 struct nlattr *nl_modes = nla_nest_start(msg, attr);
888 int i;
889
890 if (!nl_modes)
891 goto nla_put_failure;
892
893 i = 0;
894 while (ifmodes) {
9360ffd1
DM		 895 if ((ifmodes & 1) && nla_put_flag(msg, i))
896 goto nla_put_failure;
7527a782
JB		 897 ifmodes >>= 1;
898 i++;
899 }
900
901 nla_nest_end(msg, nl_modes);
902 return 0;
903
904nla_put_failure:
905 return -ENOBUFS;
906}
907
908static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 909 struct sk_buff *msg,
910 bool large)
7527a782
JB		 911{
912 struct nlattr *nl_combis;
913 int i, j;
914
915 nl_combis = nla_nest_start(msg,
916 NL80211_ATTR_INTERFACE_COMBINATIONS);
917 if (!nl_combis)
918 goto nla_put_failure;
919
920 for (i = 0; i < wiphy->n_iface_combinations; i++) {
921 const struct ieee80211_iface_combination *c;
922 struct nlattr *nl_combi, *nl_limits;
923
924 c = &wiphy->iface_combinations[i];
925
926 nl_combi = nla_nest_start(msg, i + 1);
927 if (!nl_combi)
928 goto nla_put_failure;
929
930 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
931 if (!nl_limits)
932 goto nla_put_failure;
933
934 for (j = 0; j < c->n_limits; j++) {
935 struct nlattr *nl_limit;
936
937 nl_limit = nla_nest_start(msg, j + 1);
938 if (!nl_limit)
939 goto nla_put_failure;
9360ffd1
DM		 940 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
941 c->limits[j].max))
942 goto nla_put_failure;
7527a782
JB		 943 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
944 c->limits[j].types))
945 goto nla_put_failure;
946 nla_nest_end(msg, nl_limit);
947 }
948
949 nla_nest_end(msg, nl_limits);
950
9360ffd1
DM		 951 if (c->beacon_int_infra_match &&
952 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
953 goto nla_put_failure;
954 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
955 c->num_different_channels) ||
956 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
957 c->max_interfaces))
958 goto nla_put_failure;
cdc89b97
JB		 959 if (large &&
960 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
961 c->radar_detect_widths))
962 goto nla_put_failure;
7527a782
JB		 963
964 nla_nest_end(msg, nl_combi);
965 }
966
967 nla_nest_end(msg, nl_combis);
968
969 return 0;
970nla_put_failure:
971 return -ENOBUFS;
972}
973
3713b4e3 974#ifdef CONFIG_PM
b56cf720
JB		 975static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
976 struct sk_buff *msg)
977{
964dc9e2 978 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 979 struct nlattr *nl_tcp;
980
981 if (!tcp)
982 return 0;
983
984 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
985 if (!nl_tcp)
986 return -ENOBUFS;
987
988 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
989 tcp->data_payload_max))
990 return -ENOBUFS;
991
992 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
993 tcp->data_payload_max))
994 return -ENOBUFS;
995
996 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
997 return -ENOBUFS;
998
999 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1000 sizeof(*tcp->tok), tcp->tok))
1001 return -ENOBUFS;
1002
1003 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1004 tcp->data_interval_max))
1005 return -ENOBUFS;
1006
1007 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1008 tcp->wake_payload_max))
1009 return -ENOBUFS;
1010
1011 nla_nest_end(msg, nl_tcp);
1012 return 0;
1013}
1014
3713b4e3 1015static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 1016 struct cfg80211_registered_device *dev,
1017 bool large)
55682965 1018{
3713b4e3 1019 struct nlattr *nl_wowlan;
55682965 1020
964dc9e2 1021 if (!dev->wiphy.wowlan)
3713b4e3 1022 return 0;
55682965 1023
3713b4e3
JB		 1024 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1025 if (!nl_wowlan)
1026 return -ENOBUFS;
9360ffd1 1027
964dc9e2 1028 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1029 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
964dc9e2 1030 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1031 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
964dc9e2 1032 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1033 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
964dc9e2 1034 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1035 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
964dc9e2 1036 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1037 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
964dc9e2 1038 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1039 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
964dc9e2 1040 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1041 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
964dc9e2 1042 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1043 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1044 return -ENOBUFS;
9360ffd1 1045
964dc9e2 1046 if (dev->wiphy.wowlan->n_patterns) {
50ac6607 1047 struct nl80211_pattern_support pat = {
964dc9e2
JB		 1048 .max_patterns = dev->wiphy.wowlan->n_patterns,
1049 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
1050 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
1051 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1052 };
9360ffd1 1053
3713b4e3
JB		 1054 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1055 sizeof(pat), &pat))
1056 return -ENOBUFS;
1057 }
9360ffd1 1058
b56cf720
JB		 1059 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1060 return -ENOBUFS;
1061
3713b4e3 1062 nla_nest_end(msg, nl_wowlan);
9360ffd1 1063
3713b4e3
JB		 1064 return 0;
1065}
1066#endif
9360ffd1 1067
be29b99a
AK		 1068static int nl80211_send_coalesce(struct sk_buff *msg,
1069 struct cfg80211_registered_device *dev)
1070{
1071 struct nl80211_coalesce_rule_support rule;
1072
1073 if (!dev->wiphy.coalesce)
1074 return 0;
1075
1076 rule.max_rules = dev->wiphy.coalesce->n_rules;
1077 rule.max_delay = dev->wiphy.coalesce->max_delay;
1078 rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
1079 rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
1080 rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
1081 rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
1082
1083 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1084 return -ENOBUFS;
1085
1086 return 0;
1087}
1088
3713b4e3
JB		 1089static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1090 struct ieee80211_supported_band *sband)
1091{
1092 struct nlattr *nl_rates, *nl_rate;
1093 struct ieee80211_rate *rate;
1094 int i;
87bbbe22 1095
3713b4e3
JB		 1096 /* add HT info */
1097 if (sband->ht_cap.ht_supported &&
1098 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1099 sizeof(sband->ht_cap.mcs),
1100 &sband->ht_cap.mcs) ||
1101 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1102 sband->ht_cap.cap) ||
1103 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1104 sband->ht_cap.ampdu_factor) ||
1105 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1106 sband->ht_cap.ampdu_density)))
1107 return -ENOBUFS;
afe0cbf8 1108
3713b4e3
JB		 1109 /* add VHT info */
1110 if (sband->vht_cap.vht_supported &&
1111 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1112 sizeof(sband->vht_cap.vht_mcs),
1113 &sband->vht_cap.vht_mcs) ||
1114 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1115 sband->vht_cap.cap)))
1116 return -ENOBUFS;
f59ac048 1117
3713b4e3
JB		 1118 /* add bitrates */
1119 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1120 if (!nl_rates)
1121 return -ENOBUFS;
ee688b00 1122
3713b4e3
JB		 1123 for (i = 0; i < sband->n_bitrates; i++) {
1124 nl_rate = nla_nest_start(msg, i);
1125 if (!nl_rate)
1126 return -ENOBUFS;
ee688b00 1127
3713b4e3
JB		 1128 rate = &sband->bitrates[i];
1129 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1130 rate->bitrate))
1131 return -ENOBUFS;
1132 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1133 nla_put_flag(msg,
1134 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1135 return -ENOBUFS;
ee688b00 1136
3713b4e3
JB		 1137 nla_nest_end(msg, nl_rate);
1138 }
d51626df 1139
3713b4e3 1140 nla_nest_end(msg, nl_rates);
bf0c111e 1141
3713b4e3
JB		 1142 return 0;
1143}
ee688b00 1144
3713b4e3
JB		 1145static int
1146nl80211_send_mgmt_stypes(struct sk_buff *msg,
1147 const struct ieee80211_txrx_stypes *mgmt_stypes)
1148{
1149 u16 stypes;
1150 struct nlattr *nl_ftypes, *nl_ifs;
1151 enum nl80211_iftype ift;
1152 int i;
ee688b00 1153
3713b4e3
JB		 1154 if (!mgmt_stypes)
1155 return 0;
5dab3b8a 1156
3713b4e3
JB		 1157 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1158 if (!nl_ifs)
1159 return -ENOBUFS;
e2f367f2 1160
3713b4e3
JB		 1161 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1162 nl_ftypes = nla_nest_start(msg, ift);
1163 if (!nl_ftypes)
1164 return -ENOBUFS;
1165 i = 0;
1166 stypes = mgmt_stypes[ift].tx;
1167 while (stypes) {
1168 if ((stypes & 1) &&
1169 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1170 (i << 4) | IEEE80211_FTYPE_MGMT))
1171 return -ENOBUFS;
1172 stypes >>= 1;
1173 i++;
ee688b00 1174 }
3713b4e3
JB		 1175 nla_nest_end(msg, nl_ftypes);
1176 }
ee688b00 1177
3713b4e3 1178 nla_nest_end(msg, nl_ifs);
ee688b00 1179
3713b4e3
JB		 1180 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1181 if (!nl_ifs)
1182 return -ENOBUFS;
ee688b00 1183
3713b4e3
JB		 1184 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1185 nl_ftypes = nla_nest_start(msg, ift);
1186 if (!nl_ftypes)
1187 return -ENOBUFS;
1188 i = 0;
1189 stypes = mgmt_stypes[ift].rx;
1190 while (stypes) {
1191 if ((stypes & 1) &&
1192 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1193 (i << 4) | IEEE80211_FTYPE_MGMT))
1194 return -ENOBUFS;
1195 stypes >>= 1;
1196 i++;
1197 }
1198 nla_nest_end(msg, nl_ftypes);
1199 }
1200 nla_nest_end(msg, nl_ifs);
ee688b00 1201
3713b4e3
JB		 1202 return 0;
1203}
ee688b00 1204
86e8cf98
JB		 1205struct nl80211_dump_wiphy_state {
1206 s64 filter_wiphy;
1207 long start;
1208 long split_start, band_start, chan_start;
1209 bool split;
1210};
1211
3713b4e3
JB		 1212static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1213 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1214 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1215{
1216 void *hdr;
1217 struct nlattr *nl_bands, *nl_band;
1218 struct nlattr *nl_freqs, *nl_freq;
1219 struct nlattr *nl_cmds;
1220 enum ieee80211_band band;
1221 struct ieee80211_channel *chan;
1222 int i;
1223 const struct ieee80211_txrx_stypes *mgmt_stypes =
1224 dev->wiphy.mgmt_stypes;
fe1abafd 1225 u32 features;
ee688b00 1226
3713b4e3
JB		 1227 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1228 if (!hdr)
1229 return -ENOBUFS;
ee688b00 1230
86e8cf98
JB		 1231 if (WARN_ON(!state))
1232 return -EINVAL;
ee688b00 1233
3713b4e3
JB		 1234 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1235 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1236 wiphy_name(&dev->wiphy)) ||
1237 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1238 cfg80211_rdev_list_generation))
8fdc621d
JB		 1239 goto nla_put_failure;
1240
86e8cf98 1241 switch (state->split_start) {
3713b4e3
JB		 1242 case 0:
1243 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1244 dev->wiphy.retry_short) ||
1245 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1246 dev->wiphy.retry_long) ||
1247 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1248 dev->wiphy.frag_threshold) ||
1249 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1250 dev->wiphy.rts_threshold) ||
1251 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1252 dev->wiphy.coverage_class) ||
1253 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1254 dev->wiphy.max_scan_ssids) ||
1255 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1256 dev->wiphy.max_sched_scan_ssids) ||
1257 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1258 dev->wiphy.max_scan_ie_len) ||
1259 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1260 dev->wiphy.max_sched_scan_ie_len) ||
1261 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1262 dev->wiphy.max_match_sets))
9360ffd1 1263 goto nla_put_failure;
3713b4e3
JB		 1264
1265 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1266 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1267 goto nla_put_failure;
3713b4e3
JB		 1268 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1269 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1270 goto nla_put_failure;
1271 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1272 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1273 goto nla_put_failure;
1274 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1275 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1276 goto nla_put_failure;
1277 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1278 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1279 goto nla_put_failure;
1280 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1281 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1282 goto nla_put_failure;
86e8cf98
JB		 1283 state->split_start++;
1284 if (state->split)
3713b4e3
JB		 1285 break;
1286 case 1:
1287 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1288 sizeof(u32) * dev->wiphy.n_cipher_suites,
1289 dev->wiphy.cipher_suites))
1290 goto nla_put_failure;
4745fc09 1291
3713b4e3
JB		 1292 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1293 dev->wiphy.max_num_pmkids))
1294 goto nla_put_failure;
b23aa676 1295
3713b4e3
JB		 1296 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1297 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1298 goto nla_put_failure;
b23aa676 1299
3713b4e3
JB		 1300 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1301 dev->wiphy.available_antennas_tx) ||
1302 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1303 dev->wiphy.available_antennas_rx))
9360ffd1 1304 goto nla_put_failure;
b23aa676 1305
3713b4e3
JB		 1306 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1307 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1308 dev->wiphy.probe_resp_offload))
1309 goto nla_put_failure;
8fdc621d 1310
3713b4e3
JB		 1311 if ((dev->wiphy.available_antennas_tx ||
1312 dev->wiphy.available_antennas_rx) &&
1313 dev->ops->get_antenna) {
1314 u32 tx_ant = 0, rx_ant = 0;
1315 int res;
1316 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1317 if (!res) {
1318 if (nla_put_u32(msg,
1319 NL80211_ATTR_WIPHY_ANTENNA_TX,
1320 tx_ant) ||
1321 nla_put_u32(msg,
1322 NL80211_ATTR_WIPHY_ANTENNA_RX,
1323 rx_ant))
1324 goto nla_put_failure;
1325 }
1326 }
a293911d 1327
86e8cf98
JB		 1328 state->split_start++;
1329 if (state->split)
3713b4e3
JB		 1330 break;
1331 case 2:
1332 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1333 dev->wiphy.interface_modes))
1334 goto nla_put_failure;
86e8cf98
JB		 1335 state->split_start++;
1336 if (state->split)
3713b4e3
JB		 1337 break;
1338 case 3:
1339 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1340 if (!nl_bands)
1341 goto nla_put_failure;
f7ca38df 1342
86e8cf98
JB		 1343 for (band = state->band_start;
1344 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1345 struct ieee80211_supported_band *sband;
2e161f78 1346
3713b4e3 1347 sband = dev->wiphy.bands[band];
2e161f78 1348
3713b4e3
JB		 1349 if (!sband)
1350 continue;
1351
1352 nl_band = nla_nest_start(msg, band);
1353 if (!nl_band)
2e161f78 1354 goto nla_put_failure;
3713b4e3 1355
86e8cf98 1356 switch (state->chan_start) {
3713b4e3
JB		 1357 case 0:
1358 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1359 goto nla_put_failure;
86e8cf98
JB		 1360 state->chan_start++;
1361 if (state->split)
3713b4e3
JB		 1362 break;
1363 default:
1364 /* add frequencies */
1365 nl_freqs = nla_nest_start(
1366 msg, NL80211_BAND_ATTR_FREQS);
1367 if (!nl_freqs)
1368 goto nla_put_failure;
1369
86e8cf98 1370 for (i = state->chan_start - 1;
3713b4e3
JB		 1371 i < sband->n_channels;
1372 i++) {
1373 nl_freq = nla_nest_start(msg, i);
1374 if (!nl_freq)
1375 goto nla_put_failure;
1376
1377 chan = &sband->channels[i];
1378
86e8cf98
JB		 1379 if (nl80211_msg_put_channel(
1380 msg, chan,
1381 state->split))
3713b4e3
JB		 1382 goto nla_put_failure;
1383
1384 nla_nest_end(msg, nl_freq);
86e8cf98 1385 if (state->split)
3713b4e3
JB		 1386 break;
1387 }
1388 if (i < sband->n_channels)
86e8cf98 1389 state->chan_start = i + 2;
3713b4e3 1390 else
86e8cf98 1391 state->chan_start = 0;
3713b4e3
JB		 1392 nla_nest_end(msg, nl_freqs);
1393 }
1394
1395 nla_nest_end(msg, nl_band);
1396
86e8cf98 1397 if (state->split) {
3713b4e3 1398 /* start again here */
86e8cf98 1399 if (state->chan_start)
3713b4e3
JB		 1400 band--;
1401 break;
2e161f78 1402 }
2e161f78 1403 }
3713b4e3 1404 nla_nest_end(msg, nl_bands);
2e161f78 1405
3713b4e3 1406 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1407 state->band_start = band + 1;
3713b4e3 1408 else
86e8cf98 1409 state->band_start = 0;
74b70a4e 1410
3713b4e3 1411 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1412 if (state->band_start == 0 && state->chan_start == 0)
1413 state->split_start++;
1414 if (state->split)
3713b4e3
JB		 1415 break;
1416 case 4:
1417 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1418 if (!nl_cmds)
2e161f78
JB		 1419 goto nla_put_failure;
1420
3713b4e3
JB		 1421 i = 0;
1422#define CMD(op, n) \
1423 do { \
1424 if (dev->ops->op) { \
1425 i++; \
1426 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1427 goto nla_put_failure; \
1428 } \
1429 } while (0)
1430
1431 CMD(add_virtual_intf, NEW_INTERFACE);
1432 CMD(change_virtual_intf, SET_INTERFACE);
1433 CMD(add_key, NEW_KEY);
1434 CMD(start_ap, START_AP);
1435 CMD(add_station, NEW_STATION);
1436 CMD(add_mpath, NEW_MPATH);
1437 CMD(update_mesh_config, SET_MESH_CONFIG);
1438 CMD(change_bss, SET_BSS);
1439 CMD(auth, AUTHENTICATE);
1440 CMD(assoc, ASSOCIATE);
1441 CMD(deauth, DEAUTHENTICATE);
1442 CMD(disassoc, DISASSOCIATE);
1443 CMD(join_ibss, JOIN_IBSS);
1444 CMD(join_mesh, JOIN_MESH);
1445 CMD(set_pmksa, SET_PMKSA);
1446 CMD(del_pmksa, DEL_PMKSA);
1447 CMD(flush_pmksa, FLUSH_PMKSA);
1448 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1449 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1450 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1451 CMD(mgmt_tx, FRAME);
1452 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1453 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1454 i++;
1455 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1456 goto nla_put_failure;
2e161f78 1457 }
3713b4e3
JB		 1458 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1459 dev->ops->join_mesh) {
1460 i++;
1461 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1462 goto nla_put_failure;
1463 }
1464 CMD(set_wds_peer, SET_WDS_PEER);
1465 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1466 CMD(tdls_mgmt, TDLS_MGMT);
1467 CMD(tdls_oper, TDLS_OPER);
1468 }
1469 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1470 CMD(sched_scan_start, START_SCHED_SCAN);
1471 CMD(probe_client, PROBE_CLIENT);
1472 CMD(set_noack_map, SET_NOACK_MAP);
1473 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1474 i++;
1475 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1476 goto nla_put_failure;
1477 }
1478 CMD(start_p2p_device, START_P2P_DEVICE);
1479 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1480 if (state->split) {
5de17984
AS		 1481 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1482 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
16ef1fe2
SW		 1483 if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1484 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1485 }
fa9ffc74 1486 CMD(set_qos_map, SET_QOS_MAP);
2e161f78 1487
3713b4e3
JB		 1488#ifdef CONFIG_NL80211_TESTMODE
1489 CMD(testmode_cmd, TESTMODE);
1490#endif
ff1b6e69 1491
3713b4e3 1492#undef CMD
ff1b6e69 1493
3713b4e3
JB		 1494 if (dev->ops->connect || dev->ops->auth) {
1495 i++;
1496 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1497 goto nla_put_failure;
ff1b6e69
JB		 1498 }
1499
3713b4e3
JB		 1500 if (dev->ops->disconnect || dev->ops->deauth) {
1501 i++;
1502 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1503 goto nla_put_failure;
1504 }
1505
1506 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1507 state->split_start++;
1508 if (state->split)
3713b4e3
JB		 1509 break;
1510 case 5:
1511 if (dev->ops->remain_on_channel &&
1512 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1513 nla_put_u32(msg,
1514 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1515 dev->wiphy.max_remain_on_channel_duration))
1516 goto nla_put_failure;
1517
1518 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1519 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1520 goto nla_put_failure;
1521
1522 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1523 goto nla_put_failure;
86e8cf98
JB		 1524 state->split_start++;
1525 if (state->split)
3713b4e3
JB		 1526 break;
1527 case 6:
1528#ifdef CONFIG_PM
86e8cf98 1529 if (nl80211_send_wowlan(msg, dev, state->split))
3713b4e3 1530 goto nla_put_failure;
86e8cf98
JB		 1531 state->split_start++;
1532 if (state->split)
3713b4e3
JB		 1533 break;
1534#else
86e8cf98 1535 state->split_start++;
dfb89c56 1536#endif
3713b4e3
JB		 1537 case 7:
1538 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1539 dev->wiphy.software_iftypes))
1540 goto nla_put_failure;
ff1b6e69 1541
86e8cf98
JB		 1542 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1543 state->split))
3713b4e3 1544 goto nla_put_failure;
7527a782 1545
86e8cf98
JB		 1546 state->split_start++;
1547 if (state->split)
3713b4e3
JB		 1548 break;
1549 case 8:
1550 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1551 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1552 dev->wiphy.ap_sme_capa))
1553 goto nla_put_failure;
7527a782 1554
fe1abafd
JB		 1555 features = dev->wiphy.features;
1556 /*
1557 * We can only add the per-channel limit information if the
1558 * dump is split, otherwise it makes it too big. Therefore
1559 * only advertise it in that case.
1560 */
86e8cf98 1561 if (state->split)
fe1abafd
JB		 1562 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1563 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1564 goto nla_put_failure;
562a7480 1565
3713b4e3
JB		 1566 if (dev->wiphy.ht_capa_mod_mask &&
1567 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1568 sizeof(*dev->wiphy.ht_capa_mod_mask),
1569 dev->wiphy.ht_capa_mod_mask))
1570 goto nla_put_failure;
1f074bd8 1571
3713b4e3
JB		 1572 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1573 dev->wiphy.max_acl_mac_addrs &&
1574 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1575 dev->wiphy.max_acl_mac_addrs))
1576 goto nla_put_failure;
7e7c8926 1577
3713b4e3
JB		 1578 /*
1579 * Any information below this point is only available to
1580 * applications that can deal with it being split. This
1581 * helps ensure that newly added capabilities don't break
1582 * older tools by overrunning their buffers.
1583 *
1584 * We still increment split_start so that in the split
1585 * case we'll continue with more data in the next round,
1586 * but break unconditionally so unsplit data stops here.
1587 */
86e8cf98 1588 state->split_start++;
3713b4e3
JB		 1589 break;
1590 case 9:
fe1abafd
JB		 1591 if (dev->wiphy.extended_capabilities &&
1592 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1593 dev->wiphy.extended_capabilities_len,
1594 dev->wiphy.extended_capabilities) ||
1595 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1596 dev->wiphy.extended_capabilities_len,
1597 dev->wiphy.extended_capabilities_mask)))
1598 goto nla_put_failure;
a50df0c4 1599
ee2aca34
JB		 1600 if (dev->wiphy.vht_capa_mod_mask &&
1601 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1602 sizeof(*dev->wiphy.vht_capa_mod_mask),
1603 dev->wiphy.vht_capa_mod_mask))
1604 goto nla_put_failure;
1605
be29b99a
AK		 1606 state->split_start++;
1607 break;
1608 case 10:
1609 if (nl80211_send_coalesce(msg, dev))
1610 goto nla_put_failure;
1611
01e0daa4
FF		 1612 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1613 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1614 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1615 goto nla_put_failure;
b43504cf
JM		 1616
1617 if (dev->wiphy.max_ap_assoc_sta &&
1618 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1619 dev->wiphy.max_ap_assoc_sta))
1620 goto nla_put_failure;
1621
ad7e718c
JB		 1622 state->split_start++;
1623 break;
1624 case 11:
567ffc35
JB		 1625 if (dev->wiphy.n_vendor_commands) {
1626 const struct nl80211_vendor_cmd_info *info;
1627 struct nlattr *nested;
1628
1629 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1630 if (!nested)
1631 goto nla_put_failure;
1632
1633 for (i = 0; i < dev->wiphy.n_vendor_commands; i++) {
1634 info = &dev->wiphy.vendor_commands[i].info;
1635 if (nla_put(msg, i + 1, sizeof(*info), info))
1636 goto nla_put_failure;
1637 }
1638 nla_nest_end(msg, nested);
1639 }
1640
1641 if (dev->wiphy.n_vendor_events) {
1642 const struct nl80211_vendor_cmd_info *info;
1643 struct nlattr *nested;
ad7e718c 1644
567ffc35
JB		 1645 nested = nla_nest_start(msg,
1646 NL80211_ATTR_VENDOR_EVENTS);
1647 if (!nested)
ad7e718c 1648 goto nla_put_failure;
567ffc35
JB		 1649
1650 for (i = 0; i < dev->wiphy.n_vendor_events; i++) {
1651 info = &dev->wiphy.vendor_events[i];
1652 if (nla_put(msg, i + 1, sizeof(*info), info))
1653 goto nla_put_failure;
1654 }
1655 nla_nest_end(msg, nested);
1656 }
01e0daa4 1657
3713b4e3 1658 /* done */
86e8cf98 1659 state->split_start = 0;
3713b4e3
JB		 1660 break;
1661 }
55682965
JB		 1662 return genlmsg_end(msg, hdr);
1663
1664 nla_put_failure:
bc3ed28c
TG		 1665 genlmsg_cancel(msg, hdr);
1666 return -EMSGSIZE;
55682965
JB		 1667}
1668
86e8cf98
JB		 1669static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1670 struct netlink_callback *cb,
1671 struct nl80211_dump_wiphy_state *state)
1672{
1673 struct nlattr **tb = nl80211_fam.attrbuf;
1674 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1675 tb, nl80211_fam.maxattr, nl80211_policy);
1676 /* ignore parse errors for backward compatibility */
1677 if (ret)
1678 return 0;
1679
1680 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1681 if (tb[NL80211_ATTR_WIPHY])
1682 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1683 if (tb[NL80211_ATTR_WDEV])
1684 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1685 if (tb[NL80211_ATTR_IFINDEX]) {
1686 struct net_device *netdev;
1687 struct cfg80211_registered_device *rdev;
1688 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1689
7f2b8562 1690 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1691 if (!netdev)
1692 return -ENODEV;
1693 if (netdev->ieee80211_ptr) {
1694 rdev = wiphy_to_dev(
1695 netdev->ieee80211_ptr->wiphy);
1696 state->filter_wiphy = rdev->wiphy_idx;
1697 }
86e8cf98
JB		 1698 }
1699
1700 return 0;
1701}
1702
55682965
JB		 1703static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1704{
645e77de 1705 int idx = 0, ret;
86e8cf98 1706 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
55682965 1707 struct cfg80211_registered_device *dev;
3a5a423b 1708
5fe231e8 1709 rtnl_lock();
86e8cf98
JB		 1710 if (!state) {
1711 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1712 if (!state) {
1713 rtnl_unlock();
86e8cf98 1714 return -ENOMEM;
3713b4e3 1715 }
86e8cf98
JB		 1716 state->filter_wiphy = -1;
1717 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1718 if (ret) {
1719 kfree(state);
1720 rtnl_unlock();
1721 return ret;
3713b4e3 1722 }
86e8cf98 1723 cb->args[0] = (long)state;
3713b4e3
JB		 1724 }
1725
79c97e97 1726 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1727 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1728 continue;
86e8cf98 1729 if (++idx <= state->start)
55682965 1730 continue;
86e8cf98
JB		 1731 if (state->filter_wiphy != -1 &&
1732 state->filter_wiphy != dev->wiphy_idx)
3713b4e3
JB		 1733 continue;
1734 /* attempt to fit multiple wiphy data chunks into the skb */
1735 do {
1736 ret = nl80211_send_wiphy(dev, skb,
1737 NETLINK_CB(cb->skb).portid,
1738 cb->nlh->nlmsg_seq,
86e8cf98 1739 NLM_F_MULTI, state);
3713b4e3
JB		 1740 if (ret < 0) {
1741 /*
1742 * If sending the wiphy data didn't fit (ENOBUFS
1743 * or EMSGSIZE returned), this SKB is still
1744 * empty (so it's not too big because another
1745 * wiphy dataset is already in the skb) and
1746 * we've not tried to adjust the dump allocation
1747 * yet ... then adjust the alloc size to be
1748 * bigger, and return 1 but with the empty skb.
1749 * This results in an empty message being RX'ed
1750 * in userspace, but that is ignored.
1751 *
1752 * We can then retry with the larger buffer.
1753 */
1754 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1755 !skb->len && !state->split &&
3713b4e3
JB		 1756 cb->min_dump_alloc < 4096) {
1757 cb->min_dump_alloc = 4096;
f12cb289 1758 state->split_start = 0;
d98cae64 1759 rtnl_unlock();
3713b4e3
JB		 1760 return 1;
1761 }
1762 idx--;
1763 break;
645e77de 1764 }
86e8cf98 1765 } while (state->split_start > 0);
3713b4e3 1766 break;
55682965 1767 }
5fe231e8 1768 rtnl_unlock();
55682965 1769
86e8cf98 1770 state->start = idx;
55682965
JB		 1771
1772 return skb->len;
1773}
1774
86e8cf98
JB		 1775static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1776{
1777 kfree((void *)cb->args[0]);
1778 return 0;
1779}
1780
55682965
JB		 1781static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1782{
1783 struct sk_buff *msg;
4c476991 1784 struct cfg80211_registered_device *dev = info->user_ptr[0];
86e8cf98 1785 struct nl80211_dump_wiphy_state state = {};
55682965 1786
645e77de 1787 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1788 if (!msg)
4c476991 1789 return -ENOMEM;
55682965 1790
3713b4e3 1791 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1792 &state) < 0) {
4c476991
JB		 1793 nlmsg_free(msg);
1794 return -ENOBUFS;
1795 }
55682965 1796
134e6375 1797 return genlmsg_reply(msg, info);
55682965
JB		 1798}
1799
31888487
JM		 1800static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1801 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1802 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1803 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1804 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1805 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1806};
1807
1808static int parse_txq_params(struct nlattr *tb[],
1809 struct ieee80211_txq_params *txq_params)
1810{
a3304b0a 1811 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1812 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1813 !tb[NL80211_TXQ_ATTR_AIFS])
1814 return -EINVAL;
1815
a3304b0a 1816 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1817 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1818 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1819 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1820 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1821
a3304b0a
JB		 1822 if (txq_params->ac >= NL80211_NUM_ACS)
1823 return -EINVAL;
1824
31888487
JM		 1825 return 0;
1826}
1827
f444de05
JB		 1828static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1829{
1830 /*
cc1d2806
JB		 1831 * You can only set the channel explicitly for WDS interfaces,
1832 * all others have their channel managed via their respective
1833 * "establish a connection" command (connect, join, ...)
1834 *
1835 * For AP/GO and mesh mode, the channel can be set with the
1836 * channel userspace API, but is only stored and passed to the
1837 * low-level driver when the AP starts or the mesh is joined.
1838 * This is for backward compatibility, userspace can also give
1839 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1840 *
1841 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1842 * whatever else is going on, so they have their own special
1843 * operation to set the monitor channel if possible.
f444de05
JB		 1844 */
1845 return !wdev ||
1846 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1847 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1848 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1849 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1850}
1851
683b6d3b
JB		 1852static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1853 struct genl_info *info,
1854 struct cfg80211_chan_def *chandef)
1855{
dbeca2ea 1856 u32 control_freq;
683b6d3b
JB		 1857
1858 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1859 return -EINVAL;
1860
1861 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1862
1863 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1864 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1865 chandef->center_freq1 = control_freq;
1866 chandef->center_freq2 = 0;
683b6d3b
JB		 1867
1868 /* Primary channel not allowed */
1869 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1870 return -EINVAL;
1871
3d9d1d66
JB		 1872 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1873 enum nl80211_channel_type chantype;
1874
1875 chantype = nla_get_u32(
1876 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1877
1878 switch (chantype) {
1879 case NL80211_CHAN_NO_HT:
1880 case NL80211_CHAN_HT20:
1881 case NL80211_CHAN_HT40PLUS:
1882 case NL80211_CHAN_HT40MINUS:
1883 cfg80211_chandef_create(chandef, chandef->chan,
1884 chantype);
1885 break;
1886 default:
1887 return -EINVAL;
1888 }
1889 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1890 chandef->width =
1891 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1892 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1893 chandef->center_freq1 =
1894 nla_get_u32(
1895 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1896 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1897 chandef->center_freq2 =
1898 nla_get_u32(
1899 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1900 }
1901
9f5e8f6e 1902 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1903 return -EINVAL;
1904
9f5e8f6e
JB		 1905 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1906 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1907 return -EINVAL;
1908
2f301ab2
SW		 1909 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1910 chandef->width == NL80211_CHAN_WIDTH_10) &&
1911 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1912 return -EINVAL;
1913
683b6d3b
JB		 1914 return 0;
1915}
1916
f444de05
JB		 1917static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1918 struct wireless_dev *wdev,
1919 struct genl_info *info)
1920{
683b6d3b 1921 struct cfg80211_chan_def chandef;
f444de05 1922 int result;
e8c9bd5b
JB		 1923 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1924
1925 if (wdev)
1926 iftype = wdev->iftype;
f444de05 1927
f444de05
JB		 1928 if (!nl80211_can_set_dev_channel(wdev))
1929 return -EOPNOTSUPP;
1930
683b6d3b
JB		 1931 result = nl80211_parse_chandef(rdev, info, &chandef);
1932 if (result)
1933 return result;
f444de05 1934
e8c9bd5b 1935 switch (iftype) {
aa430da4
JB		 1936 case NL80211_IFTYPE_AP:
1937 case NL80211_IFTYPE_P2P_GO:
1938 if (wdev->beacon_interval) {
1939 result = -EBUSY;
1940 break;
1941 }
683b6d3b 1942 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1943 result = -EINVAL;
1944 break;
1945 }
683b6d3b 1946 wdev->preset_chandef = chandef;
aa430da4
JB		 1947 result = 0;
1948 break;
cc1d2806 1949 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1950 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1951 break;
e8c9bd5b 1952 case NL80211_IFTYPE_MONITOR:
683b6d3b 1953 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1954 break;
aa430da4 1955 default:
e8c9bd5b 1956 result = -EINVAL;
f444de05 1957 }
f444de05
JB		 1958
1959 return result;
1960}
1961
1962static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1963{
4c476991
JB		 1964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1965 struct net_device *netdev = info->user_ptr[1];
f444de05 1966
4c476991 1967 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1968}
1969
e8347eba
BJ		 1970static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1971{
43b19952
JB		 1972 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1973 struct net_device *dev = info->user_ptr[1];
1974 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1975 const u8 *bssid;
e8347eba
BJ		 1976
1977 if (!info->attrs[NL80211_ATTR_MAC])
1978 return -EINVAL;
1979
43b19952
JB		 1980 if (netif_running(dev))
1981 return -EBUSY;
e8347eba 1982
43b19952
JB		 1983 if (!rdev->ops->set_wds_peer)
1984 return -EOPNOTSUPP;
e8347eba 1985
43b19952
JB		 1986 if (wdev->iftype != NL80211_IFTYPE_WDS)
1987 return -EOPNOTSUPP;
e8347eba
BJ		 1988
1989 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1990 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1991}
1992
1993
55682965
JB		 1994static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1995{
1996 struct cfg80211_registered_device *rdev;
f444de05
JB		 1997 struct net_device *netdev = NULL;
1998 struct wireless_dev *wdev;
a1e567c8 1999 int result = 0, rem_txq_params = 0;
31888487 2000 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2001 u32 changed;
2002 u8 retry_short = 0, retry_long = 0;
2003 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2004 u8 coverage_class = 0;
55682965 2005
5fe231e8
JB		 2006 ASSERT_RTNL();
2007
f444de05
JB		 2008 /*
2009 * Try to find the wiphy and netdev. Normally this
2010 * function shouldn't need the netdev, but this is
2011 * done for backward compatibility -- previously
2012 * setting the channel was done per wiphy, but now
2013 * it is per netdev. Previous userland like hostapd
2014 * also passed a netdev to set_wiphy, so that it is
2015 * possible to let that go to the right netdev!
2016 */
4bbf4d56 2017
f444de05
JB		 2018 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2019 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2020
7f2b8562 2021 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2022 if (netdev && netdev->ieee80211_ptr)
f444de05 2023 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2024 else
f444de05 2025 netdev = NULL;
4bbf4d56
JB		 2026 }
2027
f444de05 2028 if (!netdev) {
878d9ec7
JB		 2029 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2030 info->attrs);
5fe231e8 2031 if (IS_ERR(rdev))
4c476991 2032 return PTR_ERR(rdev);
f444de05
JB		 2033 wdev = NULL;
2034 netdev = NULL;
2035 result = 0;
71fe96bf 2036 } else
f444de05 2037 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2038
2039 /*
2040 * end workaround code, by now the rdev is available
2041 * and locked, and wdev may or may not be NULL.
2042 */
4bbf4d56
JB		 2043
2044 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2045 result = cfg80211_dev_rename(
2046 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2047
4bbf4d56 2048 if (result)
7f2b8562 2049 return result;
31888487
JM		 2050
2051 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2052 struct ieee80211_txq_params txq_params;
2053 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2054
7f2b8562
YX		 2055 if (!rdev->ops->set_txq_params)
2056 return -EOPNOTSUPP;
31888487 2057
7f2b8562
YX		 2058 if (!netdev)
2059 return -EINVAL;
f70f01c2 2060
133a3ff2 2061 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2062 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2063 return -EINVAL;
133a3ff2 2064
7f2b8562
YX		 2065 if (!netif_running(netdev))
2066 return -ENETDOWN;
2b5f8b0b 2067
31888487
JM		 2068 nla_for_each_nested(nl_txq_params,
2069 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2070 rem_txq_params) {
ae811e21
JB		 2071 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2072 nla_data(nl_txq_params),
2073 nla_len(nl_txq_params),
2074 txq_params_policy);
2075 if (result)
2076 return result;
31888487
JM		 2077 result = parse_txq_params(tb, &txq_params);
2078 if (result)
7f2b8562 2079 return result;
31888487 2080
e35e4d28
HG		 2081 result = rdev_set_txq_params(rdev, netdev,
2082 &txq_params);
31888487 2083 if (result)
7f2b8562 2084 return result;
31888487
JM		 2085 }
2086 }
55682965 2087
72bdcf34 2088 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 2089 result = __nl80211_set_channel(rdev,
2090 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
2091 info);
72bdcf34 2092 if (result)
7f2b8562 2093 return result;
72bdcf34
JM		 2094 }
2095
98d2ff8b 2096 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2097 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2098 enum nl80211_tx_power_setting type;
2099 int idx, mbm = 0;
2100
c8442118
JB		 2101 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2102 txp_wdev = NULL;
2103
7f2b8562
YX		 2104 if (!rdev->ops->set_tx_power)
2105 return -EOPNOTSUPP;
98d2ff8b
JO		 2106
2107 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2108 type = nla_get_u32(info->attrs[idx]);
2109
2110 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2111 (type != NL80211_TX_POWER_AUTOMATIC))
2112 return -EINVAL;
98d2ff8b
JO		 2113
2114 if (type != NL80211_TX_POWER_AUTOMATIC) {
2115 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2116 mbm = nla_get_u32(info->attrs[idx]);
2117 }
2118
c8442118 2119 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2120 if (result)
7f2b8562 2121 return result;
98d2ff8b
JO		 2122 }
2123
afe0cbf8
BR		 2124 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2125 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2126 u32 tx_ant, rx_ant;
7f531e03
BR		 2127 if ((!rdev->wiphy.available_antennas_tx &&
2128 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2129 !rdev->ops->set_antenna)
2130 return -EOPNOTSUPP;
afe0cbf8
BR		 2131
2132 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2133 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2134
a7ffac95 2135 /* reject antenna configurations which don't match the
7f531e03
BR		 2136 * available antenna masks, except for the "all" mask */
2137 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2138 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2139 return -EINVAL;
a7ffac95 2140
7f531e03
BR		 2141 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2142 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2143
e35e4d28 2144 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2145 if (result)
7f2b8562 2146 return result;
afe0cbf8
BR		 2147 }
2148
b9a5f8ca
JM		 2149 changed = 0;
2150
2151 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2152 retry_short = nla_get_u8(
2153 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2154 if (retry_short == 0)
2155 return -EINVAL;
2156
b9a5f8ca
JM		 2157 changed |= WIPHY_PARAM_RETRY_SHORT;
2158 }
2159
2160 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2161 retry_long = nla_get_u8(
2162 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2163 if (retry_long == 0)
2164 return -EINVAL;
2165
b9a5f8ca
JM		 2166 changed |= WIPHY_PARAM_RETRY_LONG;
2167 }
2168
2169 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2170 frag_threshold = nla_get_u32(
2171 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2172 if (frag_threshold < 256)
2173 return -EINVAL;
2174
b9a5f8ca
JM		 2175 if (frag_threshold != (u32) -1) {
2176 /*
2177 * Fragments (apart from the last one) are required to
2178 * have even length. Make the fragmentation code
2179 * simpler by stripping LSB should someone try to use
2180 * odd threshold value.
2181 */
2182 frag_threshold &= ~0x1;
2183 }
2184 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2185 }
2186
2187 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2188 rts_threshold = nla_get_u32(
2189 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2190 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2191 }
2192
81077e82
LT		 2193 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2194 coverage_class = nla_get_u8(
2195 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2196 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2197 }
2198
b9a5f8ca
JM		 2199 if (changed) {
2200 u8 old_retry_short, old_retry_long;
2201 u32 old_frag_threshold, old_rts_threshold;
81077e82 2202 u8 old_coverage_class;
b9a5f8ca 2203
7f2b8562
YX		 2204 if (!rdev->ops->set_wiphy_params)
2205 return -EOPNOTSUPP;
b9a5f8ca
JM		 2206
2207 old_retry_short = rdev->wiphy.retry_short;
2208 old_retry_long = rdev->wiphy.retry_long;
2209 old_frag_threshold = rdev->wiphy.frag_threshold;
2210 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2211 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2212
2213 if (changed & WIPHY_PARAM_RETRY_SHORT)
2214 rdev->wiphy.retry_short = retry_short;
2215 if (changed & WIPHY_PARAM_RETRY_LONG)
2216 rdev->wiphy.retry_long = retry_long;
2217 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2218 rdev->wiphy.frag_threshold = frag_threshold;
2219 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2220 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2221 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2222 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2223
e35e4d28 2224 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2225 if (result) {
2226 rdev->wiphy.retry_short = old_retry_short;
2227 rdev->wiphy.retry_long = old_retry_long;
2228 rdev->wiphy.frag_threshold = old_frag_threshold;
2229 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2230 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2231 }
2232 }
7f2b8562 2233 return 0;
55682965
JB		 2234}
2235
71bbc994
JB		 2236static inline u64 wdev_id(struct wireless_dev *wdev)
2237{
2238 return (u64)wdev->identifier |
2239 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2240}
55682965 2241
683b6d3b 2242static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2243 const struct cfg80211_chan_def *chandef)
683b6d3b 2244{
9f5e8f6e 2245 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2246
683b6d3b
JB		 2247 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2248 chandef->chan->center_freq))
2249 return -ENOBUFS;
3d9d1d66
JB		 2250 switch (chandef->width) {
2251 case NL80211_CHAN_WIDTH_20_NOHT:
2252 case NL80211_CHAN_WIDTH_20:
2253 case NL80211_CHAN_WIDTH_40:
2254 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2255 cfg80211_get_chandef_type(chandef)))
2256 return -ENOBUFS;
2257 break;
2258 default:
2259 break;
2260 }
2261 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2262 return -ENOBUFS;
2263 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2264 return -ENOBUFS;
2265 if (chandef->center_freq2 &&
2266 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2267 return -ENOBUFS;
2268 return 0;
2269}
2270
15e47304 2271static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2272 struct cfg80211_registered_device *rdev,
72fb2abc 2273 struct wireless_dev *wdev)
55682965 2274{
72fb2abc 2275 struct net_device *dev = wdev->netdev;
55682965
JB		 2276 void *hdr;
2277
15e47304 2278 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2279 if (!hdr)
2280 return -1;
2281
72fb2abc
JB		 2282 if (dev &&
2283 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2284 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2285 goto nla_put_failure;
2286
2287 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2288 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2289 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2290 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2291 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2292 rdev->devlist_generation ^
2293 (cfg80211_rdev_list_generation << 2)))
2294 goto nla_put_failure;
f5ea9120 2295
5b7ccaf3 2296 if (rdev->ops->get_channel) {
683b6d3b
JB		 2297 int ret;
2298 struct cfg80211_chan_def chandef;
2299
2300 ret = rdev_get_channel(rdev, wdev, &chandef);
2301 if (ret == 0) {
2302 if (nl80211_send_chandef(msg, &chandef))
2303 goto nla_put_failure;
2304 }
d91df0e3
PF		 2305 }
2306
b84e7a05
AQ		 2307 if (wdev->ssid_len) {
2308 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2309 goto nla_put_failure;
2310 }
2311
55682965
JB		 2312 return genlmsg_end(msg, hdr);
2313
2314 nla_put_failure:
bc3ed28c
TG		 2315 genlmsg_cancel(msg, hdr);
2316 return -EMSGSIZE;
55682965
JB		 2317}
2318
2319static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2320{
2321 int wp_idx = 0;
2322 int if_idx = 0;
2323 int wp_start = cb->args[0];
2324 int if_start = cb->args[1];
f5ea9120 2325 struct cfg80211_registered_device *rdev;
55682965
JB		 2326 struct wireless_dev *wdev;
2327
5fe231e8 2328 rtnl_lock();
f5ea9120
JB		 2329 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2330 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2331 continue;
bba95fef
JB		 2332 if (wp_idx < wp_start) {
2333 wp_idx++;
55682965 2334 continue;
bba95fef 2335 }
55682965
JB		 2336 if_idx = 0;
2337
89a54e48 2338 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2339 if (if_idx < if_start) {
2340 if_idx++;
55682965 2341 continue;
bba95fef 2342 }
15e47304 2343 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2344 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2345 rdev, wdev) < 0) {
bba95fef
JB		 2346 goto out;
2347 }
2348 if_idx++;
55682965 2349 }
bba95fef
JB		 2350
2351 wp_idx++;
55682965 2352 }
bba95fef 2353 out:
5fe231e8 2354 rtnl_unlock();
55682965
JB		 2355
2356 cb->args[0] = wp_idx;
2357 cb->args[1] = if_idx;
2358
2359 return skb->len;
2360}
2361
2362static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2363{
2364 struct sk_buff *msg;
4c476991 2365 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2366 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2367
fd2120ca 2368 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2369 if (!msg)
4c476991 2370 return -ENOMEM;
55682965 2371
15e47304 2372 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2373 dev, wdev) < 0) {
4c476991
JB		 2374 nlmsg_free(msg);
2375 return -ENOBUFS;
2376 }
55682965 2377
134e6375 2378 return genlmsg_reply(msg, info);
55682965
JB		 2379}
2380
66f7ac50
MW		 2381static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2382 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2383 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2384 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2385 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2386 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2387 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2388};
2389
2390static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2391{
2392 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2393 int flag;
2394
2395 *mntrflags = 0;
2396
2397 if (!nla)
2398 return -EINVAL;
2399
2400 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2401 nla, mntr_flags_policy))
2402 return -EINVAL;
2403
2404 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2405 if (flags[flag])
2406 *mntrflags |= (1<<flag);
2407
2408 return 0;
2409}
2410
9bc383de 2411static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2412 struct net_device *netdev, u8 use_4addr,
2413 enum nl80211_iftype iftype)
9bc383de 2414{
ad4bb6f8 2415 if (!use_4addr) {
f350a0a8 2416 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2417 return -EBUSY;
9bc383de 2418 return 0;
ad4bb6f8 2419 }
9bc383de
JB		 2420
2421 switch (iftype) {
2422 case NL80211_IFTYPE_AP_VLAN:
2423 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2424 return 0;
2425 break;
2426 case NL80211_IFTYPE_STATION:
2427 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2428 return 0;
2429 break;
2430 default:
2431 break;
2432 }
2433
2434 return -EOPNOTSUPP;
2435}
2436
55682965
JB		 2437static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2438{
4c476991 2439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2440 struct vif_params params;
e36d56b6 2441 int err;
04a773ad 2442 enum nl80211_iftype otype, ntype;
4c476991 2443 struct net_device *dev = info->user_ptr[1];
92ffe055 2444 u32 _flags, *flags = NULL;
ac7f9cfa 2445 bool change = false;
55682965 2446
2ec600d6
LCC		 2447 memset(&params, 0, sizeof(params));
2448
04a773ad 2449 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2450
723b038d 2451 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2452 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2453 if (otype != ntype)
ac7f9cfa 2454 change = true;
4c476991
JB		 2455 if (ntype > NL80211_IFTYPE_MAX)
2456 return -EINVAL;
723b038d
JB		 2457 }
2458
92ffe055 2459 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2460 struct wireless_dev *wdev = dev->ieee80211_ptr;
2461
4c476991
JB		 2462 if (ntype != NL80211_IFTYPE_MESH_POINT)
2463 return -EINVAL;
29cbe68c
JB		 2464 if (netif_running(dev))
2465 return -EBUSY;
2466
2467 wdev_lock(wdev);
2468 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2469 IEEE80211_MAX_MESH_ID_LEN);
2470 wdev->mesh_id_up_len =
2471 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2472 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2473 wdev->mesh_id_up_len);
2474 wdev_unlock(wdev);
2ec600d6
LCC		 2475 }
2476
8b787643
FF		 2477 if (info->attrs[NL80211_ATTR_4ADDR]) {
2478 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2479 change = true;
ad4bb6f8 2480 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2481 if (err)
4c476991 2482 return err;
8b787643
FF		 2483 } else {
2484 params.use_4addr = -1;
2485 }
2486
92ffe055 2487 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2488 if (ntype != NL80211_IFTYPE_MONITOR)
2489 return -EINVAL;
92ffe055
JB		 2490 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2491 &_flags);
ac7f9cfa 2492 if (err)
4c476991 2493 return err;
ac7f9cfa
JB		 2494
2495 flags = &_flags;
2496 change = true;
92ffe055 2497 }
3b85875a 2498
18003297 2499 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2500 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2501 return -EOPNOTSUPP;
2502
ac7f9cfa 2503 if (change)
3d54d255 2504 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2505 else
2506 err = 0;
60719ffd 2507
9bc383de
JB		 2508 if (!err && params.use_4addr != -1)
2509 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2510
55682965
JB		 2511 return err;
2512}
2513
2514static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2515{
4c476991 2516 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2517 struct vif_params params;
84efbb84 2518 struct wireless_dev *wdev;
1c90f9d4 2519 struct sk_buff *msg;
55682965
JB		 2520 int err;
2521 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2522 u32 flags;
55682965 2523
78f22b6a
JB		 2524 /* to avoid failing a new interface creation due to pending removal */
2525 cfg80211_destroy_ifaces(rdev);
2526
2ec600d6
LCC		 2527 memset(&params, 0, sizeof(params));
2528
55682965
JB		 2529 if (!info->attrs[NL80211_ATTR_IFNAME])
2530 return -EINVAL;
2531
2532 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2533 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2534 if (type > NL80211_IFTYPE_MAX)
2535 return -EINVAL;
2536 }
2537
79c97e97 2538 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2539 !(rdev->wiphy.interface_modes & (1 << type)))
2540 return -EOPNOTSUPP;
55682965 2541
1c18f145
AS		 2542 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2543 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2544 ETH_ALEN);
2545 if (!is_valid_ether_addr(params.macaddr))
2546 return -EADDRNOTAVAIL;
2547 }
2548
9bc383de 2549 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2550 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2551 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2552 if (err)
4c476991 2553 return err;
9bc383de 2554 }
8b787643 2555
1c90f9d4
JB		 2556 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2557 if (!msg)
2558 return -ENOMEM;
2559
66f7ac50
MW		 2560 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2561 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2562 &flags);
e057d3c3 2563
18003297 2564 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2565 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2566 return -EOPNOTSUPP;
2567
e35e4d28
HG		 2568 wdev = rdev_add_virtual_intf(rdev,
2569 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2570 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2571 if (IS_ERR(wdev)) {
2572 nlmsg_free(msg);
84efbb84 2573 return PTR_ERR(wdev);
1c90f9d4 2574 }
2ec600d6 2575
78f22b6a
JB		 2576 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2577 wdev->owner_nlportid = info->snd_portid;
2578
98104fde
JB		 2579 switch (type) {
2580 case NL80211_IFTYPE_MESH_POINT:
2581 if (!info->attrs[NL80211_ATTR_MESH_ID])
2582 break;
29cbe68c
JB		 2583 wdev_lock(wdev);
2584 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2585 IEEE80211_MAX_MESH_ID_LEN);
2586 wdev->mesh_id_up_len =
2587 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2588 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2589 wdev->mesh_id_up_len);
2590 wdev_unlock(wdev);
98104fde
JB		 2591 break;
2592 case NL80211_IFTYPE_P2P_DEVICE:
2593 /*
2594 * P2P Device doesn't have a netdev, so doesn't go
2595 * through the netdev notifier and must be added here
2596 */
2597 mutex_init(&wdev->mtx);
2598 INIT_LIST_HEAD(&wdev->event_list);
2599 spin_lock_init(&wdev->event_lock);
2600 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2601 spin_lock_init(&wdev->mgmt_registrations_lock);
2602
98104fde
JB		 2603 wdev->identifier = ++rdev->wdev_id;
2604 list_add_rcu(&wdev->list, &rdev->wdev_list);
2605 rdev->devlist_generation++;
98104fde
JB		 2606 break;
2607 default:
2608 break;
29cbe68c
JB		 2609 }
2610
15e47304 2611 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2612 rdev, wdev) < 0) {
2613 nlmsg_free(msg);
2614 return -ENOBUFS;
2615 }
2616
2617 return genlmsg_reply(msg, info);
55682965
JB		 2618}
2619
2620static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2621{
4c476991 2622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2623 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2624
4c476991
JB		 2625 if (!rdev->ops->del_virtual_intf)
2626 return -EOPNOTSUPP;
55682965 2627
84efbb84
JB		 2628 /*
2629 * If we remove a wireless device without a netdev then clear
2630 * user_ptr[1] so that nl80211_post_doit won't dereference it
2631 * to check if it needs to do dev_put(). Otherwise it crashes
2632 * since the wdev has been freed, unlike with a netdev where
2633 * we need the dev_put() for the netdev to really be freed.
2634 */
2635 if (!wdev->netdev)
2636 info->user_ptr[1] = NULL;
2637
e35e4d28 2638 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2639}
2640
1d9d9213
SW		 2641static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2642{
2643 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2644 struct net_device *dev = info->user_ptr[1];
2645 u16 noack_map;
2646
2647 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2648 return -EINVAL;
2649
2650 if (!rdev->ops->set_noack_map)
2651 return -EOPNOTSUPP;
2652
2653 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2654
e35e4d28 2655 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2656}
2657
41ade00f
JB		 2658struct get_key_cookie {
2659 struct sk_buff *msg;
2660 int error;
b9454e83 2661 int idx;
41ade00f
JB		 2662};
2663
2664static void get_key_callback(void *c, struct key_params *params)
2665{
b9454e83 2666 struct nlattr *key;
41ade00f
JB		 2667 struct get_key_cookie *cookie = c;
2668
9360ffd1
DM		 2669 if ((params->key &&
2670 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2671 params->key_len, params->key)) ||
2672 (params->seq &&
2673 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2674 params->seq_len, params->seq)) ||
2675 (params->cipher &&
2676 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2677 params->cipher)))
2678 goto nla_put_failure;
41ade00f 2679
b9454e83
JB		 2680 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2681 if (!key)
2682 goto nla_put_failure;
2683
9360ffd1
DM		 2684 if ((params->key &&
2685 nla_put(cookie->msg, NL80211_KEY_DATA,
2686 params->key_len, params->key)) ||
2687 (params->seq &&
2688 nla_put(cookie->msg, NL80211_KEY_SEQ,
2689 params->seq_len, params->seq)) ||
2690 (params->cipher &&
2691 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2692 params->cipher)))
2693 goto nla_put_failure;
b9454e83 2694
9360ffd1
DM		 2695 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2696 goto nla_put_failure;
b9454e83
JB		 2697
2698 nla_nest_end(cookie->msg, key);
2699
41ade00f
JB		 2700 return;
2701 nla_put_failure:
2702 cookie->error = 1;
2703}
2704
2705static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2706{
4c476991 2707 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2708 int err;
4c476991 2709 struct net_device *dev = info->user_ptr[1];
41ade00f 2710 u8 key_idx = 0;
e31b8213
JB		 2711 const u8 *mac_addr = NULL;
2712 bool pairwise;
41ade00f
JB		 2713 struct get_key_cookie cookie = {
2714 .error = 0,
2715 };
2716 void *hdr;
2717 struct sk_buff *msg;
2718
2719 if (info->attrs[NL80211_ATTR_KEY_IDX])
2720 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2721
3cfcf6ac 2722 if (key_idx > 5)
41ade00f
JB		 2723 return -EINVAL;
2724
2725 if (info->attrs[NL80211_ATTR_MAC])
2726 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2727
e31b8213
JB		 2728 pairwise = !!mac_addr;
2729 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2730 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2731 if (kt >= NUM_NL80211_KEYTYPES)
2732 return -EINVAL;
2733 if (kt != NL80211_KEYTYPE_GROUP &&
2734 kt != NL80211_KEYTYPE_PAIRWISE)
2735 return -EINVAL;
2736 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2737 }
2738
4c476991
JB		 2739 if (!rdev->ops->get_key)
2740 return -EOPNOTSUPP;
41ade00f 2741
fd2120ca 2742 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2743 if (!msg)
2744 return -ENOMEM;
41ade00f 2745
15e47304 2746 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2747 NL80211_CMD_NEW_KEY);
cb35fba3 2748 if (!hdr)
9fe271af 2749 goto nla_put_failure;
41ade00f
JB		 2750
2751 cookie.msg = msg;
b9454e83 2752 cookie.idx = key_idx;
41ade00f 2753
9360ffd1
DM		 2754 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2755 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2756 goto nla_put_failure;
2757 if (mac_addr &&
2758 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2759 goto nla_put_failure;
41ade00f 2760
e31b8213
JB		 2761 if (pairwise && mac_addr &&
2762 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2763 return -ENOENT;
2764
e35e4d28
HG		 2765 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2766 get_key_callback);
41ade00f
JB		 2767
2768 if (err)
6c95e2a2 2769 goto free_msg;
41ade00f
JB		 2770
2771 if (cookie.error)
2772 goto nla_put_failure;
2773
2774 genlmsg_end(msg, hdr);
4c476991 2775 return genlmsg_reply(msg, info);
41ade00f
JB		 2776
2777 nla_put_failure:
2778 err = -ENOBUFS;
6c95e2a2 2779 free_msg:
41ade00f 2780 nlmsg_free(msg);
41ade00f
JB		 2781 return err;
2782}
2783
2784static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2785{
4c476991 2786 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2787 struct key_parse key;
41ade00f 2788 int err;
4c476991 2789 struct net_device *dev = info->user_ptr[1];
41ade00f 2790
b9454e83
JB		 2791 err = nl80211_parse_key(info, &key);
2792 if (err)
2793 return err;
41ade00f 2794
b9454e83 2795 if (key.idx < 0)
41ade00f
JB		 2796 return -EINVAL;
2797
b9454e83
JB		 2798 /* only support setting default key */
2799 if (!key.def && !key.defmgmt)
41ade00f
JB		 2800 return -EINVAL;
2801
dbd2fd65 2802 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2803
dbd2fd65
JB		 2804 if (key.def) {
2805 if (!rdev->ops->set_default_key) {
2806 err = -EOPNOTSUPP;
2807 goto out;
2808 }
41ade00f 2809
dbd2fd65
JB		 2810 err = nl80211_key_allowed(dev->ieee80211_ptr);
2811 if (err)
2812 goto out;
2813
e35e4d28 2814 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2815 key.def_uni, key.def_multi);
2816
2817 if (err)
2818 goto out;
fffd0934 2819
3d23e349 2820#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2821 dev->ieee80211_ptr->wext.default_key = key.idx;
2822#endif
2823 } else {
2824 if (key.def_uni || !key.def_multi) {
2825 err = -EINVAL;
2826 goto out;
2827 }
2828
2829 if (!rdev->ops->set_default_mgmt_key) {
2830 err = -EOPNOTSUPP;
2831 goto out;
2832 }
2833
2834 err = nl80211_key_allowed(dev->ieee80211_ptr);
2835 if (err)
2836 goto out;
2837
e35e4d28 2838 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2839 if (err)
2840 goto out;
2841
2842#ifdef CONFIG_CFG80211_WEXT
2843 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2844#endif
dbd2fd65
JB		 2845 }
2846
2847 out:
fffd0934 2848 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2849
41ade00f
JB		 2850 return err;
2851}
2852
2853static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2854{
4c476991 2855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2856 int err;
4c476991 2857 struct net_device *dev = info->user_ptr[1];
b9454e83 2858 struct key_parse key;
e31b8213 2859 const u8 *mac_addr = NULL;
41ade00f 2860
b9454e83
JB		 2861 err = nl80211_parse_key(info, &key);
2862 if (err)
2863 return err;
41ade00f 2864
b9454e83 2865 if (!key.p.key)
41ade00f
JB		 2866 return -EINVAL;
2867
41ade00f
JB		 2868 if (info->attrs[NL80211_ATTR_MAC])
2869 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2870
e31b8213
JB		 2871 if (key.type == -1) {
2872 if (mac_addr)
2873 key.type = NL80211_KEYTYPE_PAIRWISE;
2874 else
2875 key.type = NL80211_KEYTYPE_GROUP;
2876 }
2877
2878 /* for now */
2879 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2880 key.type != NL80211_KEYTYPE_GROUP)
2881 return -EINVAL;
2882
4c476991
JB		 2883 if (!rdev->ops->add_key)
2884 return -EOPNOTSUPP;
25e47c18 2885
e31b8213
JB		 2886 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2887 key.type == NL80211_KEYTYPE_PAIRWISE,
2888 mac_addr))
4c476991 2889 return -EINVAL;
41ade00f 2890
fffd0934
JB		 2891 wdev_lock(dev->ieee80211_ptr);
2892 err = nl80211_key_allowed(dev->ieee80211_ptr);
2893 if (!err)
e35e4d28
HG		 2894 err = rdev_add_key(rdev, dev, key.idx,
2895 key.type == NL80211_KEYTYPE_PAIRWISE,
2896 mac_addr, &key.p);
fffd0934 2897 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2898
41ade00f
JB		 2899 return err;
2900}
2901
2902static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2903{
4c476991 2904 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2905 int err;
4c476991 2906 struct net_device *dev = info->user_ptr[1];
41ade00f 2907 u8 *mac_addr = NULL;
b9454e83 2908 struct key_parse key;
41ade00f 2909
b9454e83
JB		 2910 err = nl80211_parse_key(info, &key);
2911 if (err)
2912 return err;
41ade00f
JB		 2913
2914 if (info->attrs[NL80211_ATTR_MAC])
2915 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2916
e31b8213
JB		 2917 if (key.type == -1) {
2918 if (mac_addr)
2919 key.type = NL80211_KEYTYPE_PAIRWISE;
2920 else
2921 key.type = NL80211_KEYTYPE_GROUP;
2922 }
2923
2924 /* for now */
2925 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2926 key.type != NL80211_KEYTYPE_GROUP)
2927 return -EINVAL;
2928
4c476991
JB		 2929 if (!rdev->ops->del_key)
2930 return -EOPNOTSUPP;
41ade00f 2931
fffd0934
JB		 2932 wdev_lock(dev->ieee80211_ptr);
2933 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2934
2935 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2936 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2937 err = -ENOENT;
2938
fffd0934 2939 if (!err)
e35e4d28
HG		 2940 err = rdev_del_key(rdev, dev, key.idx,
2941 key.type == NL80211_KEYTYPE_PAIRWISE,
2942 mac_addr);
41ade00f 2943
3d23e349 2944#ifdef CONFIG_CFG80211_WEXT
08645126 2945 if (!err) {
b9454e83 2946 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2947 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2948 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2949 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2950 }
2951#endif
fffd0934 2952 wdev_unlock(dev->ieee80211_ptr);
08645126 2953
41ade00f
JB		 2954 return err;
2955}
2956
77765eaf
VT		 2957/* This function returns an error or the number of nested attributes */
2958static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2959{
2960 struct nlattr *attr;
2961 int n_entries = 0, tmp;
2962
2963 nla_for_each_nested(attr, nl_attr, tmp) {
2964 if (nla_len(attr) != ETH_ALEN)
2965 return -EINVAL;
2966
2967 n_entries++;
2968 }
2969
2970 return n_entries;
2971}
2972
2973/*
2974 * This function parses ACL information and allocates memory for ACL data.
2975 * On successful return, the calling function is responsible to free the
2976 * ACL buffer returned by this function.
2977 */
2978static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2979 struct genl_info *info)
2980{
2981 enum nl80211_acl_policy acl_policy;
2982 struct nlattr *attr;
2983 struct cfg80211_acl_data *acl;
2984 int i = 0, n_entries, tmp;
2985
2986 if (!wiphy->max_acl_mac_addrs)
2987 return ERR_PTR(-EOPNOTSUPP);
2988
2989 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2990 return ERR_PTR(-EINVAL);
2991
2992 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2993 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2994 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2995 return ERR_PTR(-EINVAL);
2996
2997 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2998 return ERR_PTR(-EINVAL);
2999
3000 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3001 if (n_entries < 0)
3002 return ERR_PTR(n_entries);
3003
3004 if (n_entries > wiphy->max_acl_mac_addrs)
3005 return ERR_PTR(-ENOTSUPP);
3006
3007 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3008 GFP_KERNEL);
3009 if (!acl)
3010 return ERR_PTR(-ENOMEM);
3011
3012 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3013 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3014 i++;
3015 }
3016
3017 acl->n_acl_entries = n_entries;
3018 acl->acl_policy = acl_policy;
3019
3020 return acl;
3021}
3022
3023static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3024{
3025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3026 struct net_device *dev = info->user_ptr[1];
3027 struct cfg80211_acl_data *acl;
3028 int err;
3029
3030 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3031 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3032 return -EOPNOTSUPP;
3033
3034 if (!dev->ieee80211_ptr->beacon_interval)
3035 return -EINVAL;
3036
3037 acl = parse_acl_data(&rdev->wiphy, info);
3038 if (IS_ERR(acl))
3039 return PTR_ERR(acl);
3040
3041 err = rdev_set_mac_acl(rdev, dev, acl);
3042
3043 kfree(acl);
3044
3045 return err;
3046}
3047
a1193be8 3048static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3049 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3050{
8860020e 3051 bool haveinfo = false;
ed1b6cc7 3052
a1193be8
SW		 3053 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3054 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3055 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3056 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3057 return -EINVAL;
3058
8860020e 3059 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3060
a1193be8
SW		 3061 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3062 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3063 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3064 if (!bcn->head_len)
3065 return -EINVAL;
3066 haveinfo = true;
ed1b6cc7
JB		 3067 }
3068
a1193be8
SW		 3069 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3070 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3071 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3072 haveinfo = true;
ed1b6cc7
JB		 3073 }
3074
4c476991
JB		 3075 if (!haveinfo)
3076 return -EINVAL;
3b85875a 3077
a1193be8
SW		 3078 if (attrs[NL80211_ATTR_IE]) {
3079 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3080 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3081 }
3082
a1193be8 3083 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3084 bcn->proberesp_ies =
a1193be8 3085 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3086 bcn->proberesp_ies_len =
a1193be8 3087 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3088 }
3089
a1193be8 3090 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3091 bcn->assocresp_ies =
a1193be8 3092 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3093 bcn->assocresp_ies_len =
a1193be8 3094 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3095 }
3096
a1193be8
SW		 3097 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3098 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3099 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3100 }
3101
8860020e
JB		 3102 return 0;
3103}
3104
46c1dd0c
FF		 3105static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3106 struct cfg80211_ap_settings *params)
3107{
3108 struct wireless_dev *wdev;
3109 bool ret = false;
3110
89a54e48 3111 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3112 if (wdev->iftype != NL80211_IFTYPE_AP &&
3113 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3114 continue;
3115
683b6d3b 3116 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3117 continue;
3118
683b6d3b 3119 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3120 ret = true;
3121 break;
3122 }
3123
46c1dd0c
FF		 3124 return ret;
3125}
3126
e39e5b5e
JM		 3127static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3128 enum nl80211_auth_type auth_type,
3129 enum nl80211_commands cmd)
3130{
3131 if (auth_type > NL80211_AUTHTYPE_MAX)
3132 return false;
3133
3134 switch (cmd) {
3135 case NL80211_CMD_AUTHENTICATE:
3136 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3137 auth_type == NL80211_AUTHTYPE_SAE)
3138 return false;
3139 return true;
3140 case NL80211_CMD_CONNECT:
3141 case NL80211_CMD_START_AP:
3142 /* SAE not supported yet */
3143 if (auth_type == NL80211_AUTHTYPE_SAE)
3144 return false;
3145 return true;
3146 default:
3147 return false;
3148 }
3149}
3150
8860020e
JB		 3151static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3152{
3153 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3154 struct net_device *dev = info->user_ptr[1];
3155 struct wireless_dev *wdev = dev->ieee80211_ptr;
3156 struct cfg80211_ap_settings params;
3157 int err;
04f39047 3158 u8 radar_detect_width = 0;
8860020e
JB		 3159
3160 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3161 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3162 return -EOPNOTSUPP;
3163
3164 if (!rdev->ops->start_ap)
3165 return -EOPNOTSUPP;
3166
3167 if (wdev->beacon_interval)
3168 return -EALREADY;
3169
3170 memset(&params, 0, sizeof(params));
3171
3172 /* these are required for START_AP */
3173 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3174 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3175 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3176 return -EINVAL;
3177
a1193be8 3178 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3179 if (err)
3180 return err;
3181
3182 params.beacon_interval =
3183 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3184 params.dtim_period =
3185 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3186
3187 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3188 if (err)
3189 return err;
3190
3191 /*
3192 * In theory, some of these attributes should be required here
3193 * but since they were not used when the command was originally
3194 * added, keep them optional for old user space programs to let
3195 * them continue to work with drivers that do not need the
3196 * additional information -- drivers must check!
3197 */
3198 if (info->attrs[NL80211_ATTR_SSID]) {
3199 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3200 params.ssid_len =
3201 nla_len(info->attrs[NL80211_ATTR_SSID]);
3202 if (params.ssid_len == 0 ||
3203 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3204 return -EINVAL;
3205 }
3206
3207 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3208 params.hidden_ssid = nla_get_u32(
3209 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3210 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3211 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3212 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3213 return -EINVAL;
3214 }
3215
3216 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3217
3218 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3219 params.auth_type = nla_get_u32(
3220 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3221 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3222 NL80211_CMD_START_AP))
8860020e
JB		 3223 return -EINVAL;
3224 } else
3225 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3226
3227 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3228 NL80211_MAX_NR_CIPHER_SUITES);
3229 if (err)
3230 return err;
3231
1b658f11
VT		 3232 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3233 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3234 return -EOPNOTSUPP;
3235 params.inactivity_timeout = nla_get_u16(
3236 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3237 }
3238
53cabad7
JB		 3239 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3240 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3241 return -EINVAL;
3242 params.p2p_ctwindow =
3243 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3244 if (params.p2p_ctwindow > 127)
3245 return -EINVAL;
3246 if (params.p2p_ctwindow != 0 &&
3247 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3248 return -EINVAL;
3249 }
3250
3251 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3252 u8 tmp;
3253
3254 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3255 return -EINVAL;
3256 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3257 if (tmp > 1)
3258 return -EINVAL;
3259 params.p2p_opp_ps = tmp;
3260 if (params.p2p_opp_ps != 0 &&
3261 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3262 return -EINVAL;
3263 }
3264
aa430da4 3265 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3266 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3267 if (err)
3268 return err;
3269 } else if (wdev->preset_chandef.chan) {
3270 params.chandef = wdev->preset_chandef;
46c1dd0c 3271 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3272 return -EINVAL;
3273
683b6d3b 3274 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3275 return -EINVAL;
3276
04f39047
SW		 3277 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3278 if (err < 0)
3279 return err;
3280 if (err) {
3281 radar_detect_width = BIT(params.chandef.width);
3282 params.radar_required = true;
3283 }
3284
04f39047
SW		 3285 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3286 params.chandef.chan,
3287 CHAN_MODE_SHARED,
3288 radar_detect_width);
e4e32459
MK		 3289 if (err)
3290 return err;
3291
77765eaf
VT		 3292 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3293 params.acl = parse_acl_data(&rdev->wiphy, info);
3294 if (IS_ERR(params.acl))
3295 return PTR_ERR(params.acl);
3296 }
3297
c56589ed 3298 wdev_lock(wdev);
e35e4d28 3299 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3300 if (!err) {
683b6d3b 3301 wdev->preset_chandef = params.chandef;
8860020e 3302 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3303 wdev->chandef = params.chandef;
06e191e2
AQ		 3304 wdev->ssid_len = params.ssid_len;
3305 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3306 }
c56589ed 3307 wdev_unlock(wdev);
77765eaf
VT		 3308
3309 kfree(params.acl);
3310
56d1893d 3311 return err;
ed1b6cc7
JB		 3312}
3313
8860020e
JB		 3314static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3315{
3316 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3317 struct net_device *dev = info->user_ptr[1];
3318 struct wireless_dev *wdev = dev->ieee80211_ptr;
3319 struct cfg80211_beacon_data params;
3320 int err;
3321
3322 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3323 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3324 return -EOPNOTSUPP;
3325
3326 if (!rdev->ops->change_beacon)
3327 return -EOPNOTSUPP;
3328
3329 if (!wdev->beacon_interval)
3330 return -EINVAL;
3331
a1193be8 3332 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3333 if (err)
3334 return err;
3335
c56589ed
SW		 3336 wdev_lock(wdev);
3337 err = rdev_change_beacon(rdev, dev, &params);
3338 wdev_unlock(wdev);
3339
3340 return err;
8860020e
JB		 3341}
3342
3343static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3344{
4c476991
JB		 3345 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3346 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3347
7c8d5e03 3348 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3349}
3350
5727ef1b
JB		 3351static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3352 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3353 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3354 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3355 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3356 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3357 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3358};
3359
eccb8e8f 3360static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3361 enum nl80211_iftype iftype,
eccb8e8f 3362 struct station_parameters *params)
5727ef1b
JB		 3363{
3364 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3365 struct nlattr *nla;
5727ef1b
JB		 3366 int flag;
3367
eccb8e8f
JB		 3368 /*
3369 * Try parsing the new attribute first so userspace
3370 * can specify both for older kernels.
3371 */
3372 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3373 if (nla) {
3374 struct nl80211_sta_flag_update *sta_flags;
3375
3376 sta_flags = nla_data(nla);
3377 params->sta_flags_mask = sta_flags->mask;
3378 params->sta_flags_set = sta_flags->set;
77ee7c89 3379 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3380 if ((params->sta_flags_mask |
3381 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3382 return -EINVAL;
3383 return 0;
3384 }
3385
3386 /* if present, parse the old attribute */
5727ef1b 3387
eccb8e8f 3388 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3389 if (!nla)
3390 return 0;
3391
3392 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3393 nla, sta_flags_policy))
3394 return -EINVAL;
3395
bdd3ae3d
JB		 3396 /*
3397 * Only allow certain flags for interface types so that
3398 * other attributes are silently ignored. Remember that
3399 * this is backward compatibility code with old userspace
3400 * and shouldn't be hit in other cases anyway.
3401 */
3402 switch (iftype) {
3403 case NL80211_IFTYPE_AP:
3404 case NL80211_IFTYPE_AP_VLAN:
3405 case NL80211_IFTYPE_P2P_GO:
3406 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3407 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3408 BIT(NL80211_STA_FLAG_WME) |
3409 BIT(NL80211_STA_FLAG_MFP);
3410 break;
3411 case NL80211_IFTYPE_P2P_CLIENT:
3412 case NL80211_IFTYPE_STATION:
3413 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3414 BIT(NL80211_STA_FLAG_TDLS_PEER);
3415 break;
3416 case NL80211_IFTYPE_MESH_POINT:
3417 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3418 BIT(NL80211_STA_FLAG_MFP) |
3419 BIT(NL80211_STA_FLAG_AUTHORIZED);
3420 default:
3421 return -EINVAL;
3422 }
5727ef1b 3423
3383b5a6
JB		 3424 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3425 if (flags[flag]) {
eccb8e8f 3426 params->sta_flags_set |= (1<<flag);
5727ef1b 3427
3383b5a6
JB		 3428 /* no longer support new API additions in old API */
3429 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3430 return -EINVAL;
3431 }
3432 }
3433
5727ef1b
JB		 3434 return 0;
3435}
3436
c8dcfd8a
FF		 3437static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3438 int attr)
3439{
3440 struct nlattr *rate;
8eb41c8d
VK		 3441 u32 bitrate;
3442 u16 bitrate_compat;
c8dcfd8a
FF		 3443
3444 rate = nla_nest_start(msg, attr);
3445 if (!rate)
db9c64cf 3446 return false;
c8dcfd8a
FF		 3447
3448 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3449 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3450 /* report 16-bit bitrate only if we can */
3451 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3452 if (bitrate > 0 &&
3453 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3454 return false;
3455 if (bitrate_compat > 0 &&
3456 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3457 return false;
3458
3459 if (info->flags & RATE_INFO_FLAGS_MCS) {
3460 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3461 return false;
3462 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3463 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3464 return false;
3465 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3466 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3467 return false;
3468 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3469 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3470 return false;
3471 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3472 return false;
3473 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3474 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3475 return false;
3476 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3477 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3478 return false;
3479 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3480 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3481 return false;
3482 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3483 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3484 return false;
3485 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3486 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3487 return false;
3488 }
c8dcfd8a
FF		 3489
3490 nla_nest_end(msg, rate);
3491 return true;
c8dcfd8a
FF		 3492}
3493
119363c7
FF		 3494static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3495 int id)
3496{
3497 void *attr;
3498 int i = 0;
3499
3500 if (!mask)
3501 return true;
3502
3503 attr = nla_nest_start(msg, id);
3504 if (!attr)
3505 return false;
3506
3507 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3508 if (!(mask & BIT(i)))
3509 continue;
3510
3511 if (nla_put_u8(msg, i, signal[i]))
3512 return false;
3513 }
3514
3515 nla_nest_end(msg, attr);
3516
3517 return true;
3518}
3519
15e47304 3520static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3521 int flags,
3522 struct cfg80211_registered_device *rdev,
3523 struct net_device *dev,
98b62183 3524 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3525{
3526 void *hdr;
f4263c98 3527 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3528
15e47304 3529 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3530 if (!hdr)
3531 return -1;
3532
9360ffd1
DM		 3533 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3534 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3535 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3536 goto nla_put_failure;
f5ea9120 3537
2ec600d6
LCC		 3538 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3539 if (!sinfoattr)
fd5b74dc 3540 goto nla_put_failure;
9360ffd1
DM		 3541 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3542 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3543 sinfo->connected_time))
3544 goto nla_put_failure;
3545 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3546 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3547 sinfo->inactive_time))
3548 goto nla_put_failure;
42745e03
VK		 3549 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3550 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3551 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3552 (u32)sinfo->rx_bytes))
9360ffd1 3553 goto nla_put_failure;
42745e03 3554 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3555 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3556 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3557 (u32)sinfo->tx_bytes))
3558 goto nla_put_failure;
3559 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3560 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3561 sinfo->rx_bytes))
3562 goto nla_put_failure;
3563 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3564 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3565 sinfo->tx_bytes))
3566 goto nla_put_failure;
3567 if ((sinfo->filled & STATION_INFO_LLID) &&
3568 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3569 goto nla_put_failure;
3570 if ((sinfo->filled & STATION_INFO_PLID) &&
3571 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3572 goto nla_put_failure;
3573 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3574 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3575 sinfo->plink_state))
3576 goto nla_put_failure;
66266b3a
JL		 3577 switch (rdev->wiphy.signal_type) {
3578 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3579 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3580 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3581 sinfo->signal))
3582 goto nla_put_failure;
3583 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3584 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3585 sinfo->signal_avg))
3586 goto nla_put_failure;
66266b3a
JL		 3587 break;
3588 default:
3589 break;
3590 }
119363c7
FF		 3591 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3592 if (!nl80211_put_signal(msg, sinfo->chains,
3593 sinfo->chain_signal,
3594 NL80211_STA_INFO_CHAIN_SIGNAL))
3595 goto nla_put_failure;
3596 }
3597 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3598 if (!nl80211_put_signal(msg, sinfo->chains,
3599 sinfo->chain_signal_avg,
3600 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3601 goto nla_put_failure;
3602 }
420e7fab 3603 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3604 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3605 NL80211_STA_INFO_TX_BITRATE))
3606 goto nla_put_failure;
3607 }
3608 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3609 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3610 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3611 goto nla_put_failure;
420e7fab 3612 }
9360ffd1
DM		 3613 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3614 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3615 sinfo->rx_packets))
3616 goto nla_put_failure;
3617 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3618 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3619 sinfo->tx_packets))
3620 goto nla_put_failure;
3621 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3622 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3623 sinfo->tx_retries))
3624 goto nla_put_failure;
3625 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3626 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3627 sinfo->tx_failed))
3628 goto nla_put_failure;
3629 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3630 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3631 sinfo->beacon_loss_count))
3632 goto nla_put_failure;
3b1c5a53
MP		 3633 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3634 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3635 sinfo->local_pm))
3636 goto nla_put_failure;
3637 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3638 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3639 sinfo->peer_pm))
3640 goto nla_put_failure;
3641 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3642 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3643 sinfo->nonpeer_pm))
3644 goto nla_put_failure;
f4263c98
PS		 3645 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3646 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3647 if (!bss_param)
3648 goto nla_put_failure;
3649
9360ffd1
DM		 3650 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3651 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3652 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3653 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3654 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3655 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3656 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3657 sinfo->bss_param.dtim_period) ||
3658 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3659 sinfo->bss_param.beacon_interval))
3660 goto nla_put_failure;
f4263c98
PS		 3661
3662 nla_nest_end(msg, bss_param);
3663 }
9360ffd1
DM		 3664 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3665 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3666 sizeof(struct nl80211_sta_flag_update),
3667 &sinfo->sta_flags))
3668 goto nla_put_failure;
7eab0f64
JL		 3669 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3670 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3671 sinfo->t_offset))
3672 goto nla_put_failure;
2ec600d6 3673 nla_nest_end(msg, sinfoattr);
fd5b74dc 3674
9360ffd1
DM		 3675 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3676 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3677 sinfo->assoc_req_ies))
3678 goto nla_put_failure;
50d3dfb7 3679
fd5b74dc
JB		 3680 return genlmsg_end(msg, hdr);
3681
3682 nla_put_failure:
bc3ed28c
TG		 3683 genlmsg_cancel(msg, hdr);
3684 return -EMSGSIZE;
fd5b74dc
JB		 3685}
3686
2ec600d6 3687static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3688 struct netlink_callback *cb)
2ec600d6 3689{
2ec600d6
LCC		 3690 struct station_info sinfo;
3691 struct cfg80211_registered_device *dev;
97990a06 3692 struct wireless_dev *wdev;
2ec600d6 3693 u8 mac_addr[ETH_ALEN];
97990a06 3694 int sta_idx = cb->args[2];
2ec600d6 3695 int err;
2ec600d6 3696
97990a06 3697 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3698 if (err)
3699 return err;
bba95fef 3700
97990a06
JB		 3701 if (!wdev->netdev) {
3702 err = -EINVAL;
3703 goto out_err;
3704 }
3705
bba95fef 3706 if (!dev->ops->dump_station) {
eec60b03 3707 err = -EOPNOTSUPP;
bba95fef
JB		 3708 goto out_err;
3709 }
3710
bba95fef 3711 while (1) {
f612cedf 3712 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3713 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3714 mac_addr, &sinfo);
bba95fef
JB		 3715 if (err == -ENOENT)
3716 break;
3717 if (err)
3b85875a 3718 goto out_err;
bba95fef
JB		 3719
3720 if (nl80211_send_station(skb,
15e47304 3721 NETLINK_CB(cb->skb).portid,
bba95fef 3722 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3723 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3724 &sinfo) < 0)
3725 goto out;
3726
3727 sta_idx++;
3728 }
3729
3730
3731 out:
97990a06 3732 cb->args[2] = sta_idx;
bba95fef 3733 err = skb->len;
bba95fef 3734 out_err:
97990a06 3735 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3736
3737 return err;
2ec600d6 3738}
fd5b74dc 3739
5727ef1b
JB		 3740static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3741{
4c476991
JB		 3742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3743 struct net_device *dev = info->user_ptr[1];
2ec600d6 3744 struct station_info sinfo;
fd5b74dc
JB		 3745 struct sk_buff *msg;
3746 u8 *mac_addr = NULL;
4c476991 3747 int err;
fd5b74dc 3748
2ec600d6 3749 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3750
3751 if (!info->attrs[NL80211_ATTR_MAC])
3752 return -EINVAL;
3753
3754 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3755
4c476991
JB		 3756 if (!rdev->ops->get_station)
3757 return -EOPNOTSUPP;
3b85875a 3758
e35e4d28 3759 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3760 if (err)
4c476991 3761 return err;
2ec600d6 3762
fd2120ca 3763 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3764 if (!msg)
4c476991 3765 return -ENOMEM;
fd5b74dc 3766
15e47304 3767 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3768 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3769 nlmsg_free(msg);
3770 return -ENOBUFS;
3771 }
3b85875a 3772
4c476991 3773 return genlmsg_reply(msg, info);
5727ef1b
JB		 3774}
3775
77ee7c89
JB		 3776int cfg80211_check_station_change(struct wiphy *wiphy,
3777 struct station_parameters *params,
3778 enum cfg80211_station_type statype)
3779{
3780 if (params->listen_interval != -1)
3781 return -EINVAL;
3782 if (params->aid)
3783 return -EINVAL;
3784
3785 /* When you run into this, adjust the code below for the new flag */
3786 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3787
3788 switch (statype) {
eef941e6
TP		 3789 case CFG80211_STA_MESH_PEER_KERNEL:
3790 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3791 /*
3792 * No ignoring the TDLS flag here -- the userspace mesh
3793 * code doesn't have the bug of including TDLS in the
3794 * mask everywhere.
3795 */
3796 if (params->sta_flags_mask &
3797 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3798 BIT(NL80211_STA_FLAG_MFP) |
3799 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3800 return -EINVAL;
3801 break;
3802 case CFG80211_STA_TDLS_PEER_SETUP:
3803 case CFG80211_STA_TDLS_PEER_ACTIVE:
3804 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3805 return -EINVAL;
3806 /* ignore since it can't change */
3807 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3808 break;
3809 default:
3810 /* disallow mesh-specific things */
3811 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3812 return -EINVAL;
3813 if (params->local_pm)
3814 return -EINVAL;
3815 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3816 return -EINVAL;
3817 }
3818
3819 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3820 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3821 /* TDLS can't be set, ... */
3822 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3823 return -EINVAL;
3824 /*
3825 * ... but don't bother the driver with it. This works around
3826 * a hostapd/wpa_supplicant issue -- it always includes the
3827 * TLDS_PEER flag in the mask even for AP mode.
3828 */
3829 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3830 }
3831
3832 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3833 /* reject other things that can't change */
3834 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3835 return -EINVAL;
3836 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3837 return -EINVAL;
3838 if (params->supported_rates)
3839 return -EINVAL;
3840 if (params->ext_capab || params->ht_capa || params->vht_capa)
3841 return -EINVAL;
3842 }
3843
3844 if (statype != CFG80211_STA_AP_CLIENT) {
3845 if (params->vlan)
3846 return -EINVAL;
3847 }
3848
3849 switch (statype) {
3850 case CFG80211_STA_AP_MLME_CLIENT:
3851 /* Use this only for authorizing/unauthorizing a station */
3852 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3853 return -EOPNOTSUPP;
3854 break;
3855 case CFG80211_STA_AP_CLIENT:
3856 /* accept only the listed bits */
3857 if (params->sta_flags_mask &
3858 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3859 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3860 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3861 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3862 BIT(NL80211_STA_FLAG_WME) |
3863 BIT(NL80211_STA_FLAG_MFP)))
3864 return -EINVAL;
3865
3866 /* but authenticated/associated only if driver handles it */
3867 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3868 params->sta_flags_mask &
3869 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3870 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3871 return -EINVAL;
3872 break;
3873 case CFG80211_STA_IBSS:
3874 case CFG80211_STA_AP_STA:
3875 /* reject any changes other than AUTHORIZED */
3876 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3877 return -EINVAL;
3878 break;
3879 case CFG80211_STA_TDLS_PEER_SETUP:
3880 /* reject any changes other than AUTHORIZED or WME */
3881 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3882 BIT(NL80211_STA_FLAG_WME)))
3883 return -EINVAL;
3884 /* force (at least) rates when authorizing */
3885 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3886 !params->supported_rates)
3887 return -EINVAL;
3888 break;
3889 case CFG80211_STA_TDLS_PEER_ACTIVE:
3890 /* reject any changes */
3891 return -EINVAL;
eef941e6 3892 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3893 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3894 return -EINVAL;
3895 break;
eef941e6 3896 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3897 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3898 return -EINVAL;
3899 break;
3900 }
3901
3902 return 0;
3903}
3904EXPORT_SYMBOL(cfg80211_check_station_change);
3905
5727ef1b 3906/*
c258d2de 3907 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3908 */
80b99899
JB		 3909static struct net_device *get_vlan(struct genl_info *info,
3910 struct cfg80211_registered_device *rdev)
5727ef1b 3911{
463d0183 3912 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3913 struct net_device *v;
3914 int ret;
3915
3916 if (!vlanattr)
3917 return NULL;
3918
3919 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3920 if (!v)
3921 return ERR_PTR(-ENODEV);
3922
3923 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3924 ret = -EINVAL;
3925 goto error;
5727ef1b 3926 }
80b99899 3927
77ee7c89
JB		 3928 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3929 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3930 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3931 ret = -EINVAL;
3932 goto error;
3933 }
3934
80b99899
JB		 3935 if (!netif_running(v)) {
3936 ret = -ENETDOWN;
3937 goto error;
3938 }
3939
3940 return v;
3941 error:
3942 dev_put(v);
3943 return ERR_PTR(ret);
5727ef1b
JB		 3944}
3945
94e860f1
JB		 3946static const struct nla_policy
3947nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 3948 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3949 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3950};
3951
ff276691
JB		 3952static int nl80211_parse_sta_wme(struct genl_info *info,
3953 struct station_parameters *params)
df881293 3954{
df881293
JM		 3955 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3956 struct nlattr *nla;
3957 int err;
3958
df881293
JM		 3959 /* parse WME attributes if present */
3960 if (!info->attrs[NL80211_ATTR_STA_WME])
3961 return 0;
3962
3963 nla = info->attrs[NL80211_ATTR_STA_WME];
3964 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3965 nl80211_sta_wme_policy);
3966 if (err)
3967 return err;
3968
3969 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3970 params->uapsd_queues = nla_get_u8(
3971 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3972 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3973 return -EINVAL;
3974
3975 if (tb[NL80211_STA_WME_MAX_SP])
3976 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3977
3978 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3979 return -EINVAL;
3980
3981 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3982
3983 return 0;
3984}
3985
c01fc9ad
SD		 3986static int nl80211_parse_sta_channel_info(struct genl_info *info,
3987 struct station_parameters *params)
3988{
3989 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
3990 params->supported_channels =
3991 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3992 params->supported_channels_len =
3993 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3994 /*
3995 * Need to include at least one (first channel, number of
3996 * channels) tuple for each subband, and must have proper
3997 * tuples for the rest of the data as well.
3998 */
3999 if (params->supported_channels_len < 2)
4000 return -EINVAL;
4001 if (params->supported_channels_len % 2)
4002 return -EINVAL;
4003 }
4004
4005 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4006 params->supported_oper_classes =
4007 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4008 params->supported_oper_classes_len =
4009 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4010 /*
4011 * The value of the Length field of the Supported Operating
4012 * Classes element is between 2 and 253.
4013 */
4014 if (params->supported_oper_classes_len < 2 ||
4015 params->supported_oper_classes_len > 253)
4016 return -EINVAL;
4017 }
4018 return 0;
4019}
4020
ff276691
JB		 4021static int nl80211_set_station_tdls(struct genl_info *info,
4022 struct station_parameters *params)
4023{
c01fc9ad 4024 int err;
ff276691 4025 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4026 if (info->attrs[NL80211_ATTR_PEER_AID])
4027 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4028 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4029 params->ht_capa =
4030 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4031 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4032 params->vht_capa =
4033 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4034
c01fc9ad
SD		 4035 err = nl80211_parse_sta_channel_info(info, params);
4036 if (err)
4037 return err;
4038
ff276691
JB		 4039 return nl80211_parse_sta_wme(info, params);
4040}
4041
5727ef1b
JB		 4042static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4043{
4c476991 4044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4045 struct net_device *dev = info->user_ptr[1];
5727ef1b 4046 struct station_parameters params;
77ee7c89
JB		 4047 u8 *mac_addr;
4048 int err;
5727ef1b
JB		 4049
4050 memset(&params, 0, sizeof(params));
4051
4052 params.listen_interval = -1;
4053
77ee7c89
JB		 4054 if (!rdev->ops->change_station)
4055 return -EOPNOTSUPP;
4056
5727ef1b
JB		 4057 if (info->attrs[NL80211_ATTR_STA_AID])
4058 return -EINVAL;
4059
4060 if (!info->attrs[NL80211_ATTR_MAC])
4061 return -EINVAL;
4062
4063 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4064
4065 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4066 params.supported_rates =
4067 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4068 params.supported_rates_len =
4069 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4070 }
4071
9d62a986
JM		 4072 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4073 params.capability =
4074 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4075 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4076 }
4077
4078 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4079 params.ext_capab =
4080 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4081 params.ext_capab_len =
4082 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4083 }
4084
df881293 4085 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4086 return -EINVAL;
36aedc90 4087
bdd3ae3d 4088 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4089 return -EINVAL;
4090
f8bacc21 4091 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4092 params.plink_action =
f8bacc21
JB		 4093 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4094 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4095 return -EINVAL;
4096 }
2ec600d6 4097
f8bacc21 4098 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4099 params.plink_state =
f8bacc21
JB		 4100 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4101 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4102 return -EINVAL;
4103 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4104 }
9c3990aa 4105
3b1c5a53
MP		 4106 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4107 enum nl80211_mesh_power_mode pm = nla_get_u32(
4108 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4109
4110 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4111 pm > NL80211_MESH_POWER_MAX)
4112 return -EINVAL;
4113
4114 params.local_pm = pm;
4115 }
4116
77ee7c89
JB		 4117 /* Include parameters for TDLS peer (will check later) */
4118 err = nl80211_set_station_tdls(info, &params);
4119 if (err)
4120 return err;
4121
4122 params.vlan = get_vlan(info, rdev);
4123 if (IS_ERR(params.vlan))
4124 return PTR_ERR(params.vlan);
4125
a97f4424
JB		 4126 switch (dev->ieee80211_ptr->iftype) {
4127 case NL80211_IFTYPE_AP:
4128 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4129 case NL80211_IFTYPE_P2P_GO:
074ac8df 4130 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4131 case NL80211_IFTYPE_STATION:
267335d6 4132 case NL80211_IFTYPE_ADHOC:
a97f4424 4133 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4134 break;
4135 default:
77ee7c89
JB		 4136 err = -EOPNOTSUPP;
4137 goto out_put_vlan;
034d655e
JB		 4138 }
4139
77ee7c89 4140 /* driver will call cfg80211_check_station_change() */
e35e4d28 4141 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4142
77ee7c89 4143 out_put_vlan:
5727ef1b
JB		 4144 if (params.vlan)
4145 dev_put(params.vlan);
3b85875a 4146
5727ef1b
JB		 4147 return err;
4148}
4149
4150static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4151{
4c476991 4152 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4153 int err;
4c476991 4154 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4155 struct station_parameters params;
4156 u8 *mac_addr = NULL;
4157
4158 memset(&params, 0, sizeof(params));
4159
984c311b
JB		 4160 if (!rdev->ops->add_station)
4161 return -EOPNOTSUPP;
4162
5727ef1b
JB		 4163 if (!info->attrs[NL80211_ATTR_MAC])
4164 return -EINVAL;
4165
5727ef1b
JB		 4166 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4167 return -EINVAL;
4168
4169 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4170 return -EINVAL;
4171
5e4b6f56
JM		 4172 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4173 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4174 return -EINVAL;
4175
5727ef1b
JB		 4176 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4177 params.supported_rates =
4178 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4179 params.supported_rates_len =
4180 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4181 params.listen_interval =
4182 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4183
3d124ea2 4184 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4185 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4186 else
4187 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4188 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4189 return -EINVAL;
51b50fbe 4190
9d62a986
JM		 4191 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4192 params.capability =
4193 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4194 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4195 }
4196
4197 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4198 params.ext_capab =
4199 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4200 params.ext_capab_len =
4201 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4202 }
4203
36aedc90
JM		 4204 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4205 params.ht_capa =
4206 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4207
f461be3e
MP		 4208 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4209 params.vht_capa =
4210 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4211
60f4a7b1
MK		 4212 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4213 params.opmode_notif_used = true;
4214 params.opmode_notif =
4215 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4216 }
4217
f8bacc21 4218 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4219 params.plink_action =
f8bacc21
JB		 4220 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4221 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4222 return -EINVAL;
4223 }
96b78dff 4224
c01fc9ad
SD		 4225 err = nl80211_parse_sta_channel_info(info, &params);
4226 if (err)
4227 return err;
4228
ff276691
JB		 4229 err = nl80211_parse_sta_wme(info, &params);
4230 if (err)
4231 return err;
bdd90d5e 4232
bdd3ae3d 4233 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4234 return -EINVAL;
4235
77ee7c89
JB		 4236 /* When you run into this, adjust the code below for the new flag */
4237 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4238
bdd90d5e
JB		 4239 switch (dev->ieee80211_ptr->iftype) {
4240 case NL80211_IFTYPE_AP:
4241 case NL80211_IFTYPE_AP_VLAN:
4242 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4243 /* ignore WME attributes if iface/sta is not capable */
4244 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4245 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4246 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4247
bdd90d5e 4248 /* TDLS peers cannot be added */
3d124ea2
JM		 4249 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4250 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4251 return -EINVAL;
bdd90d5e
JB		 4252 /* but don't bother the driver with it */
4253 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4254
d582cffb
JB		 4255 /* allow authenticated/associated only if driver handles it */
4256 if (!(rdev->wiphy.features &
4257 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4258 params.sta_flags_mask &
4259 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4260 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4261 return -EINVAL;
4262
bdd90d5e
JB		 4263 /* must be last in here for error handling */
4264 params.vlan = get_vlan(info, rdev);
4265 if (IS_ERR(params.vlan))
4266 return PTR_ERR(params.vlan);
4267 break;
4268 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4269 /* ignore uAPSD data */
4270 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4271
d582cffb
JB		 4272 /* associated is disallowed */
4273 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4274 return -EINVAL;
bdd90d5e 4275 /* TDLS peers cannot be added */
3d124ea2
JM		 4276 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4277 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4278 return -EINVAL;
4279 break;
4280 case NL80211_IFTYPE_STATION:
93d08f0b 4281 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4282 /* ignore uAPSD data */
4283 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4284
77ee7c89
JB		 4285 /* these are disallowed */
4286 if (params.sta_flags_mask &
4287 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4288 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4289 return -EINVAL;
bdd90d5e
JB		 4290 /* Only TDLS peers can be added */
4291 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4292 return -EINVAL;
4293 /* Can only add if TDLS ... */
4294 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4295 return -EOPNOTSUPP;
4296 /* ... with external setup is supported */
4297 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4298 return -EOPNOTSUPP;
77ee7c89
JB		 4299 /*
4300 * Older wpa_supplicant versions always mark the TDLS peer
4301 * as authorized, but it shouldn't yet be.
4302 */
4303 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4304 break;
4305 default:
4306 return -EOPNOTSUPP;
c75786c9
EP		 4307 }
4308
bdd90d5e 4309 /* be aware of params.vlan when changing code here */
5727ef1b 4310
e35e4d28 4311 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4312
5727ef1b
JB		 4313 if (params.vlan)
4314 dev_put(params.vlan);
5727ef1b
JB		 4315 return err;
4316}
4317
4318static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4319{
4c476991
JB		 4320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4321 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4322 u8 *mac_addr = NULL;
4323
4324 if (info->attrs[NL80211_ATTR_MAC])
4325 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4326
e80cf853 4327 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4328 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4329 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4330 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4331 return -EINVAL;
5727ef1b 4332
4c476991
JB		 4333 if (!rdev->ops->del_station)
4334 return -EOPNOTSUPP;
3b85875a 4335
e35e4d28 4336 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4337}
4338
15e47304 4339static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4340 int flags, struct net_device *dev,
4341 u8 *dst, u8 *next_hop,
4342 struct mpath_info *pinfo)
4343{
4344 void *hdr;
4345 struct nlattr *pinfoattr;
4346
15e47304 4347 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4348 if (!hdr)
4349 return -1;
4350
9360ffd1
DM		 4351 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4352 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4353 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4354 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4355 goto nla_put_failure;
f5ea9120 4356
2ec600d6
LCC		 4357 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4358 if (!pinfoattr)
4359 goto nla_put_failure;
9360ffd1
DM		 4360 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4361 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4362 pinfo->frame_qlen))
4363 goto nla_put_failure;
4364 if (((pinfo->filled & MPATH_INFO_SN) &&
4365 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4366 ((pinfo->filled & MPATH_INFO_METRIC) &&
4367 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4368 pinfo->metric)) ||
4369 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4370 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4371 pinfo->exptime)) ||
4372 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4373 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4374 pinfo->flags)) ||
4375 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4376 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4377 pinfo->discovery_timeout)) ||
4378 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4379 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4380 pinfo->discovery_retries)))
4381 goto nla_put_failure;
2ec600d6
LCC		 4382
4383 nla_nest_end(msg, pinfoattr);
4384
4385 return genlmsg_end(msg, hdr);
4386
4387 nla_put_failure:
bc3ed28c
TG		 4388 genlmsg_cancel(msg, hdr);
4389 return -EMSGSIZE;
2ec600d6
LCC		 4390}
4391
4392static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4393 struct netlink_callback *cb)
2ec600d6 4394{
2ec600d6
LCC		 4395 struct mpath_info pinfo;
4396 struct cfg80211_registered_device *dev;
97990a06 4397 struct wireless_dev *wdev;
2ec600d6
LCC		 4398 u8 dst[ETH_ALEN];
4399 u8 next_hop[ETH_ALEN];
97990a06 4400 int path_idx = cb->args[2];
2ec600d6 4401 int err;
2ec600d6 4402
97990a06 4403 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4404 if (err)
4405 return err;
bba95fef
JB		 4406
4407 if (!dev->ops->dump_mpath) {
eec60b03 4408 err = -EOPNOTSUPP;
bba95fef
JB		 4409 goto out_err;
4410 }
4411
97990a06 4412 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4413 err = -EOPNOTSUPP;
0448b5fc 4414 goto out_err;
eec60b03
JM		 4415 }
4416
bba95fef 4417 while (1) {
97990a06
JB		 4418 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4419 next_hop, &pinfo);
bba95fef 4420 if (err == -ENOENT)
2ec600d6 4421 break;
bba95fef 4422 if (err)
3b85875a 4423 goto out_err;
2ec600d6 4424
15e47304 4425 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4426 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4427 wdev->netdev, dst, next_hop,
bba95fef
JB		 4428 &pinfo) < 0)
4429 goto out;
2ec600d6 4430
bba95fef 4431 path_idx++;
2ec600d6 4432 }
2ec600d6 4433
2ec600d6 4434
bba95fef 4435 out:
97990a06 4436 cb->args[2] = path_idx;
bba95fef 4437 err = skb->len;
bba95fef 4438 out_err:
97990a06 4439 nl80211_finish_wdev_dump(dev);
bba95fef 4440 return err;
2ec600d6
LCC		 4441}
4442
4443static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4444{
4c476991 4445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4446 int err;
4c476991 4447 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4448 struct mpath_info pinfo;
4449 struct sk_buff *msg;
4450 u8 *dst = NULL;
4451 u8 next_hop[ETH_ALEN];
4452
4453 memset(&pinfo, 0, sizeof(pinfo));
4454
4455 if (!info->attrs[NL80211_ATTR_MAC])
4456 return -EINVAL;
4457
4458 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4459
4c476991
JB		 4460 if (!rdev->ops->get_mpath)
4461 return -EOPNOTSUPP;
2ec600d6 4462
4c476991
JB		 4463 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4464 return -EOPNOTSUPP;
eec60b03 4465
e35e4d28 4466 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4467 if (err)
4c476991 4468 return err;
2ec600d6 4469
fd2120ca 4470 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4471 if (!msg)
4c476991 4472 return -ENOMEM;
2ec600d6 4473
15e47304 4474 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4475 dev, dst, next_hop, &pinfo) < 0) {
4476 nlmsg_free(msg);
4477 return -ENOBUFS;
4478 }
3b85875a 4479
4c476991 4480 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4481}
4482
4483static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4484{
4c476991
JB		 4485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4486 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4487 u8 *dst = NULL;
4488 u8 *next_hop = NULL;
4489
4490 if (!info->attrs[NL80211_ATTR_MAC])
4491 return -EINVAL;
4492
4493 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4494 return -EINVAL;
4495
4496 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4497 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4498
4c476991
JB		 4499 if (!rdev->ops->change_mpath)
4500 return -EOPNOTSUPP;
35a8efe1 4501
4c476991
JB		 4502 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4503 return -EOPNOTSUPP;
2ec600d6 4504
e35e4d28 4505 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4506}
4c476991 4507
2ec600d6
LCC		 4508static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4509{
4c476991
JB		 4510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4511 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4512 u8 *dst = NULL;
4513 u8 *next_hop = NULL;
4514
4515 if (!info->attrs[NL80211_ATTR_MAC])
4516 return -EINVAL;
4517
4518 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4519 return -EINVAL;
4520
4521 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4522 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4523
4c476991
JB		 4524 if (!rdev->ops->add_mpath)
4525 return -EOPNOTSUPP;
35a8efe1 4526
4c476991
JB		 4527 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4528 return -EOPNOTSUPP;
2ec600d6 4529
e35e4d28 4530 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4531}
4532
4533static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4534{
4c476991
JB		 4535 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4536 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4537 u8 *dst = NULL;
4538
4539 if (info->attrs[NL80211_ATTR_MAC])
4540 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4541
4c476991
JB		 4542 if (!rdev->ops->del_mpath)
4543 return -EOPNOTSUPP;
3b85875a 4544
e35e4d28 4545 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4546}
4547
9f1ba906
JM		 4548static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4549{
4c476991
JB		 4550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4551 struct net_device *dev = info->user_ptr[1];
c56589ed 4552 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4553 struct bss_parameters params;
c56589ed 4554 int err;
9f1ba906
JM		 4555
4556 memset(&params, 0, sizeof(params));
4557 /* default to not changing parameters */
4558 params.use_cts_prot = -1;
4559 params.use_short_preamble = -1;
4560 params.use_short_slot_time = -1;
fd8aaaf3 4561 params.ap_isolate = -1;
50b12f59 4562 params.ht_opmode = -1;
53cabad7
JB		 4563 params.p2p_ctwindow = -1;
4564 params.p2p_opp_ps = -1;
9f1ba906
JM		 4565
4566 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4567 params.use_cts_prot =
4568 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4569 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4570 params.use_short_preamble =
4571 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4572 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4573 params.use_short_slot_time =
4574 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4575 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4576 params.basic_rates =
4577 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4578 params.basic_rates_len =
4579 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4580 }
fd8aaaf3
FF		 4581 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4582 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4583 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4584 params.ht_opmode =
4585 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4586
53cabad7
JB		 4587 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4588 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4589 return -EINVAL;
4590 params.p2p_ctwindow =
4591 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4592 if (params.p2p_ctwindow < 0)
4593 return -EINVAL;
4594 if (params.p2p_ctwindow != 0 &&
4595 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4596 return -EINVAL;
4597 }
4598
4599 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4600 u8 tmp;
4601
4602 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4603 return -EINVAL;
4604 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4605 if (tmp > 1)
4606 return -EINVAL;
4607 params.p2p_opp_ps = tmp;
4608 if (params.p2p_opp_ps &&
4609 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4610 return -EINVAL;
4611 }
4612
4c476991
JB		 4613 if (!rdev->ops->change_bss)
4614 return -EOPNOTSUPP;
9f1ba906 4615
074ac8df 4616 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4617 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4618 return -EOPNOTSUPP;
3b85875a 4619
c56589ed
SW		 4620 wdev_lock(wdev);
4621 err = rdev_change_bss(rdev, dev, &params);
4622 wdev_unlock(wdev);
4623
4624 return err;
9f1ba906
JM		 4625}
4626
b54452b0 4627static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4628 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4629 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4630 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4631 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4632 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4633 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4634 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4635};
4636
4637static int parse_reg_rule(struct nlattr *tb[],
4638 struct ieee80211_reg_rule *reg_rule)
4639{
4640 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4641 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4642
4643 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4644 return -EINVAL;
4645 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4646 return -EINVAL;
4647 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4648 return -EINVAL;
b0dfd2ea
JD		 4649 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4650 return -EINVAL;
b2e1b302
LR		 4651 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4652 return -EINVAL;
4653
4654 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4655
4656 freq_range->start_freq_khz =
4657 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4658 freq_range->end_freq_khz =
4659 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4660 freq_range->max_bandwidth_khz =
4661 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4662
4663 power_rule->max_eirp =
4664 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4665
4666 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4667 power_rule->max_antenna_gain =
4668 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4669
089027e5
JD		 4670 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4671 reg_rule->dfs_cac_ms =
4672 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4673
b2e1b302
LR		 4674 return 0;
4675}
4676
4677static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4678{
4679 int r;
4680 char *data = NULL;
57b5ce07 4681 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4682
80778f18
LR		 4683 /*
4684 * You should only get this when cfg80211 hasn't yet initialized
4685 * completely when built-in to the kernel right between the time
4686 * window between nl80211_init() and regulatory_init(), if that is
4687 * even possible.
4688 */
458f4f9e 4689 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4690 return -EINPROGRESS;
80778f18 4691
fe33eb39
LR		 4692 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4693 return -EINVAL;
b2e1b302
LR		 4694
4695 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4696
57b5ce07
LR		 4697 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4698 user_reg_hint_type =
4699 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4700 else
4701 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4702
4703 switch (user_reg_hint_type) {
4704 case NL80211_USER_REG_HINT_USER:
4705 case NL80211_USER_REG_HINT_CELL_BASE:
4706 break;
4707 default:
4708 return -EINVAL;
4709 }
4710
4711 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4712
b2e1b302
LR		 4713 return r;
4714}
4715
24bdd9f4 4716static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4717 struct genl_info *info)
93da9cc1 4718{
4c476991 4719 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4720 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4721 struct wireless_dev *wdev = dev->ieee80211_ptr;
4722 struct mesh_config cur_params;
4723 int err = 0;
93da9cc1 4724 void *hdr;
4725 struct nlattr *pinfoattr;
4726 struct sk_buff *msg;
4727
29cbe68c
JB		 4728 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4729 return -EOPNOTSUPP;
4730
24bdd9f4 4731 if (!rdev->ops->get_mesh_config)
4c476991 4732 return -EOPNOTSUPP;
f3f92586 4733
29cbe68c
JB		 4734 wdev_lock(wdev);
4735 /* If not connected, get default parameters */
4736 if (!wdev->mesh_id_len)
4737 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4738 else
e35e4d28 4739 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4740 wdev_unlock(wdev);
4741
93da9cc1 4742 if (err)
4c476991 4743 return err;
93da9cc1 4744
4745 /* Draw up a netlink message to send back */
fd2120ca 4746 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4747 if (!msg)
4748 return -ENOMEM;
15e47304 4749 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4750 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4751 if (!hdr)
efe1cf0c 4752 goto out;
24bdd9f4 4753 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4754 if (!pinfoattr)
4755 goto nla_put_failure;
9360ffd1
DM		 4756 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4757 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4758 cur_params.dot11MeshRetryTimeout) ||
4759 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4760 cur_params.dot11MeshConfirmTimeout) ||
4761 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4762 cur_params.dot11MeshHoldingTimeout) ||
4763 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4764 cur_params.dot11MeshMaxPeerLinks) ||
4765 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4766 cur_params.dot11MeshMaxRetries) ||
4767 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4768 cur_params.dot11MeshTTL) ||
4769 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4770 cur_params.element_ttl) ||
4771 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4772 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4773 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4774 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4775 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4776 cur_params.dot11MeshHWMPmaxPREQretries) ||
4777 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4778 cur_params.path_refresh_time) ||
4779 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4780 cur_params.min_discovery_timeout) ||
4781 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4782 cur_params.dot11MeshHWMPactivePathTimeout) ||
4783 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4784 cur_params.dot11MeshHWMPpreqMinInterval) ||
4785 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4786 cur_params.dot11MeshHWMPperrMinInterval) ||
4787 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4788 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4789 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4790 cur_params.dot11MeshHWMPRootMode) ||
4791 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4792 cur_params.dot11MeshHWMPRannInterval) ||
4793 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4794 cur_params.dot11MeshGateAnnouncementProtocol) ||
4795 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4796 cur_params.dot11MeshForwarding) ||
4797 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4798 cur_params.rssi_threshold) ||
4799 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4800 cur_params.ht_opmode) ||
4801 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4802 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4803 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4804 cur_params.dot11MeshHWMProotInterval) ||
4805 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4806 cur_params.dot11MeshHWMPconfirmationInterval) ||
4807 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4808 cur_params.power_mode) ||
4809 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4810 cur_params.dot11MeshAwakeWindowDuration) ||
4811 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4812 cur_params.plink_timeout))
9360ffd1 4813 goto nla_put_failure;
93da9cc1 4814 nla_nest_end(msg, pinfoattr);
4815 genlmsg_end(msg, hdr);
4c476991 4816 return genlmsg_reply(msg, info);
93da9cc1 4817
3b85875a 4818 nla_put_failure:
93da9cc1 4819 genlmsg_cancel(msg, hdr);
efe1cf0c 4820 out:
d080e275 4821 nlmsg_free(msg);
4c476991 4822 return -ENOBUFS;
93da9cc1 4823}
4824
b54452b0 4825static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4826 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4827 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4828 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4829 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4830 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4831 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4832 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4833 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4834 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4835 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4836 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4837 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4838 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4839 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4840 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4841 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4842 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4843 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4844 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4845 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4846 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4847 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4848 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4849 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4850 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4851 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4852 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4853 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4854};
4855
c80d545d
JC		 4856static const struct nla_policy
4857 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4858 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4859 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4860 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4861 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4862 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4863 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4864 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4865 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4866 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4867};
4868
24bdd9f4 4869static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4870 struct mesh_config *cfg,
4871 u32 *mask_out)
93da9cc1 4872{
93da9cc1 4873 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4874 u32 mask = 0;
93da9cc1 4875
ea54fba2
MP		 4876#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4877do { \
4878 if (tb[attr]) { \
4879 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4880 return -EINVAL; \
4881 cfg->param = fn(tb[attr]); \
4882 mask |= (1 << (attr - 1)); \
4883 } \
4884} while (0)
bd90fdcc
JB		 4885
4886
24bdd9f4 4887 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4888 return -EINVAL;
4889 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4890 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4891 nl80211_meshconf_params_policy))
93da9cc1 4892 return -EINVAL;
4893
93da9cc1 4894 /* This makes sure that there aren't more than 32 mesh config
4895 * parameters (otherwise our bitfield scheme would not work.) */
4896 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4897
4898 /* Fill in the params struct */
ea54fba2 4899 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4900 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4901 nla_get_u16);
ea54fba2 4902 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4903 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4904 nla_get_u16);
ea54fba2 4905 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4906 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4907 nla_get_u16);
ea54fba2 4908 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4909 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4910 nla_get_u16);
ea54fba2 4911 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4912 mask, NL80211_MESHCONF_MAX_RETRIES,
4913 nla_get_u8);
ea54fba2 4914 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4915 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4916 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4917 mask, NL80211_MESHCONF_ELEMENT_TTL,
4918 nla_get_u8);
ea54fba2 4919 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4920 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4921 nla_get_u8);
ea54fba2
MP		 4922 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4923 1, 255, mask,
a4f606ea
CYY		 4924 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4925 nla_get_u32);
ea54fba2 4926 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4927 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4928 nla_get_u8);
ea54fba2 4929 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4930 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4931 nla_get_u32);
ea54fba2 4932 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4933 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4934 nla_get_u16);
ea54fba2
MP		 4935 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4936 1, 65535, mask,
a4f606ea
CYY		 4937 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4938 nla_get_u32);
93da9cc1 4939 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4940 1, 65535, mask,
4941 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4942 nla_get_u16);
dca7e943 4943 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4944 1, 65535, mask,
4945 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4946 nla_get_u16);
93da9cc1 4947 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4948 dot11MeshHWMPnetDiameterTraversalTime,
4949 1, 65535, mask,
a4f606ea
CYY		 4950 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4951 nla_get_u16);
ea54fba2
MP		 4952 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4953 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4954 nla_get_u8);
4955 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4956 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4957 nla_get_u16);
63c5723b 4958 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4959 dot11MeshGateAnnouncementProtocol, 0, 1,
4960 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4961 nla_get_u8);
ea54fba2 4962 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4963 mask, NL80211_MESHCONF_FORWARDING,
4964 nla_get_u8);
83374fe9 4965 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4966 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4967 nla_get_s32);
ea54fba2 4968 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4969 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4970 nla_get_u16);
4971 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4972 1, 65535, mask,
ac1073a6
CYY		 4973 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4974 nla_get_u32);
ea54fba2 4975 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4976 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4977 nla_get_u16);
4978 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4979 dot11MeshHWMPconfirmationInterval,
4980 1, 65535, mask,
728b19e5 4981 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4982 nla_get_u16);
3b1c5a53
MP		 4983 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4984 NL80211_MESH_POWER_ACTIVE,
4985 NL80211_MESH_POWER_MAX,
4986 mask, NL80211_MESHCONF_POWER_MODE,
4987 nla_get_u32);
4988 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4989 0, 65535, mask,
4990 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 4991 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4992 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4993 nla_get_u32);
bd90fdcc
JB		 4994 if (mask_out)
4995 *mask_out = mask;
c80d545d 4996
bd90fdcc
JB		 4997 return 0;
4998
4999#undef FILL_IN_MESH_PARAM_IF_SET
5000}
5001
c80d545d
JC		 5002static int nl80211_parse_mesh_setup(struct genl_info *info,
5003 struct mesh_setup *setup)
5004{
bb2798d4 5005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5006 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5007
5008 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5009 return -EINVAL;
5010 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5011 info->attrs[NL80211_ATTR_MESH_SETUP],
5012 nl80211_mesh_setup_params_policy))
5013 return -EINVAL;
5014
d299a1f2
JC		 5015 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5016 setup->sync_method =
5017 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5018 IEEE80211_SYNC_METHOD_VENDOR :
5019 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5020
c80d545d
JC		 5021 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5022 setup->path_sel_proto =
5023 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5024 IEEE80211_PATH_PROTOCOL_VENDOR :
5025 IEEE80211_PATH_PROTOCOL_HWMP;
5026
5027 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5028 setup->path_metric =
5029 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5030 IEEE80211_PATH_METRIC_VENDOR :
5031 IEEE80211_PATH_METRIC_AIRTIME;
5032
581a8b0f
JC		 5033
5034 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5035 struct nlattr *ieattr =
581a8b0f 5036 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5037 if (!is_valid_ie_attr(ieattr))
5038 return -EINVAL;
581a8b0f
JC		 5039 setup->ie = nla_data(ieattr);
5040 setup->ie_len = nla_len(ieattr);
c80d545d 5041 }
bb2798d4
TP		 5042 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5043 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5044 return -EINVAL;
5045 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5046 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5047 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5048 if (setup->is_secure)
5049 setup->user_mpm = true;
c80d545d 5050
6e16d90b
CT		 5051 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5052 if (!setup->user_mpm)
5053 return -EINVAL;
5054 setup->auth_id =
5055 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5056 }
5057
c80d545d
JC		 5058 return 0;
5059}
5060
24bdd9f4 5061static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5062 struct genl_info *info)
bd90fdcc
JB		 5063{
5064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5065 struct net_device *dev = info->user_ptr[1];
29cbe68c 5066 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5067 struct mesh_config cfg;
5068 u32 mask;
5069 int err;
5070
29cbe68c
JB		 5071 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5072 return -EOPNOTSUPP;
5073
24bdd9f4 5074 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5075 return -EOPNOTSUPP;
5076
24bdd9f4 5077 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5078 if (err)
5079 return err;
5080
29cbe68c
JB		 5081 wdev_lock(wdev);
5082 if (!wdev->mesh_id_len)
5083 err = -ENOLINK;
5084
5085 if (!err)
e35e4d28 5086 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5087
5088 wdev_unlock(wdev);
5089
5090 return err;
93da9cc1 5091}
5092
f130347c
LR		 5093static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5094{
458f4f9e 5095 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5096 struct sk_buff *msg;
5097 void *hdr = NULL;
5098 struct nlattr *nl_reg_rules;
5099 unsigned int i;
f130347c
LR		 5100
5101 if (!cfg80211_regdomain)
5fe231e8 5102 return -EINVAL;
f130347c 5103
fd2120ca 5104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5105 if (!msg)
5106 return -ENOBUFS;
f130347c 5107
15e47304 5108 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5109 NL80211_CMD_GET_REG);
5110 if (!hdr)
efe1cf0c 5111 goto put_failure;
f130347c 5112
57b5ce07
LR		 5113 if (reg_last_request_cell_base() &&
5114 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5115 NL80211_USER_REG_HINT_CELL_BASE))
5116 goto nla_put_failure;
5117
458f4f9e
JB		 5118 rcu_read_lock();
5119 regdom = rcu_dereference(cfg80211_regdomain);
5120
5121 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5122 (regdom->dfs_region &&
5123 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5124 goto nla_put_failure_rcu;
5125
f130347c
LR		 5126 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5127 if (!nl_reg_rules)
458f4f9e 5128 goto nla_put_failure_rcu;
f130347c 5129
458f4f9e 5130 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5131 struct nlattr *nl_reg_rule;
5132 const struct ieee80211_reg_rule *reg_rule;
5133 const struct ieee80211_freq_range *freq_range;
5134 const struct ieee80211_power_rule *power_rule;
97524820 5135 unsigned int max_bandwidth_khz;
f130347c 5136
458f4f9e 5137 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5138 freq_range = &reg_rule->freq_range;
5139 power_rule = &reg_rule->power_rule;
5140
5141 nl_reg_rule = nla_nest_start(msg, i);
5142 if (!nl_reg_rule)
458f4f9e 5143 goto nla_put_failure_rcu;
f130347c 5144
97524820
JD		 5145 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5146 if (!max_bandwidth_khz)
5147 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5148 reg_rule);
5149
9360ffd1
DM		 5150 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5151 reg_rule->flags) ||
5152 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5153 freq_range->start_freq_khz) ||
5154 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5155 freq_range->end_freq_khz) ||
5156 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5157 max_bandwidth_khz) ||
9360ffd1
DM		 5158 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5159 power_rule->max_antenna_gain) ||
5160 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5161 power_rule->max_eirp) ||
5162 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5163 reg_rule->dfs_cac_ms))
458f4f9e 5164 goto nla_put_failure_rcu;
f130347c
LR		 5165
5166 nla_nest_end(msg, nl_reg_rule);
5167 }
458f4f9e 5168 rcu_read_unlock();
f130347c
LR		 5169
5170 nla_nest_end(msg, nl_reg_rules);
5171
5172 genlmsg_end(msg, hdr);
5fe231e8 5173 return genlmsg_reply(msg, info);
f130347c 5174
458f4f9e
JB		 5175nla_put_failure_rcu:
5176 rcu_read_unlock();
f130347c
LR		 5177nla_put_failure:
5178 genlmsg_cancel(msg, hdr);
efe1cf0c 5179put_failure:
d080e275 5180 nlmsg_free(msg);
5fe231e8 5181 return -EMSGSIZE;
f130347c
LR		 5182}
5183
b2e1b302
LR		 5184static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5185{
5186 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5187 struct nlattr *nl_reg_rule;
5188 char *alpha2 = NULL;
5189 int rem_reg_rules = 0, r = 0;
5190 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5191 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5192 struct ieee80211_regdomain *rd = NULL;
5193
5194 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5195 return -EINVAL;
5196
5197 if (!info->attrs[NL80211_ATTR_REG_RULES])
5198 return -EINVAL;
5199
5200 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5201
8b60b078
LR		 5202 if (info->attrs[NL80211_ATTR_DFS_REGION])
5203 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5204
b2e1b302 5205 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5206 rem_reg_rules) {
b2e1b302
LR		 5207 num_rules++;
5208 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5209 return -EINVAL;
b2e1b302
LR		 5210 }
5211
e438768f
LR		 5212 if (!reg_is_valid_request(alpha2))
5213 return -EINVAL;
5214
b2e1b302 5215 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5216 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5217
5218 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5219 if (!rd)
5220 return -ENOMEM;
b2e1b302
LR		 5221
5222 rd->n_reg_rules = num_rules;
5223 rd->alpha2[0] = alpha2[0];
5224 rd->alpha2[1] = alpha2[1];
5225
8b60b078
LR		 5226 /*
5227 * Disable DFS master mode if the DFS region was
5228 * not supported or known on this kernel.
5229 */
5230 if (reg_supported_dfs_region(dfs_region))
5231 rd->dfs_region = dfs_region;
5232
b2e1b302 5233 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5234 rem_reg_rules) {
ae811e21
JB		 5235 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5236 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5237 reg_rule_policy);
5238 if (r)
5239 goto bad_reg;
b2e1b302
LR		 5240 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5241 if (r)
5242 goto bad_reg;
5243
5244 rule_idx++;
5245
d0e18f83
LR		 5246 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5247 r = -EINVAL;
b2e1b302 5248 goto bad_reg;
d0e18f83 5249 }
b2e1b302
LR		 5250 }
5251
b2e1b302 5252 r = set_regdom(rd);
6913b49a 5253 /* set_regdom took ownership */
1a919318 5254 rd = NULL;
b2e1b302 5255
d2372b31 5256 bad_reg:
b2e1b302 5257 kfree(rd);
d0e18f83 5258 return r;
b2e1b302
LR		 5259}
5260
83f5e2cf
JB		 5261static int validate_scan_freqs(struct nlattr *freqs)
5262{
5263 struct nlattr *attr1, *attr2;
5264 int n_channels = 0, tmp1, tmp2;
5265
5266 nla_for_each_nested(attr1, freqs, tmp1) {
5267 n_channels++;
5268 /*
5269 * Some hardware has a limited channel list for
5270 * scanning, and it is pretty much nonsensical
5271 * to scan for a channel twice, so disallow that
5272 * and don't require drivers to check that the
5273 * channel list they get isn't longer than what
5274 * they can scan, as long as they can scan all
5275 * the channels they registered at once.
5276 */
5277 nla_for_each_nested(attr2, freqs, tmp2)
5278 if (attr1 != attr2 &&
5279 nla_get_u32(attr1) == nla_get_u32(attr2))
5280 return 0;
5281 }
5282
5283 return n_channels;
5284}
5285
2a519311
JB		 5286static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5287{
4c476991 5288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5289 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5290 struct cfg80211_scan_request *request;
2a519311
JB		 5291 struct nlattr *attr;
5292 struct wiphy *wiphy;
83f5e2cf 5293 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5294 size_t ie_len;
2a519311 5295
f4a11bb0
JB		 5296 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5297 return -EINVAL;
5298
79c97e97 5299 wiphy = &rdev->wiphy;
2a519311 5300
4c476991
JB		 5301 if (!rdev->ops->scan)
5302 return -EOPNOTSUPP;
2a519311 5303
f9d15d16 5304 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5305 err = -EBUSY;
5306 goto unlock;
5307 }
2a519311
JB		 5308
5309 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5310 n_channels = validate_scan_freqs(
5311 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5312 if (!n_channels) {
5313 err = -EINVAL;
5314 goto unlock;
5315 }
2a519311 5316 } else {
bdfbec2d 5317 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5318 }
5319
5320 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5321 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5322 n_ssids++;
5323
f9f47529
JB		 5324 if (n_ssids > wiphy->max_scan_ssids) {
5325 err = -EINVAL;
5326 goto unlock;
5327 }
2a519311 5328
70692ad2
JM		 5329 if (info->attrs[NL80211_ATTR_IE])
5330 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5331 else
5332 ie_len = 0;
5333
f9f47529
JB		 5334 if (ie_len > wiphy->max_scan_ie_len) {
5335 err = -EINVAL;
5336 goto unlock;
5337 }
18a83659 5338
2a519311 5339 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5340 + sizeof(*request->ssids) * n_ssids
5341 + sizeof(*request->channels) * n_channels
70692ad2 5342 + ie_len, GFP_KERNEL);
f9f47529
JB		 5343 if (!request) {
5344 err = -ENOMEM;
5345 goto unlock;
5346 }
2a519311 5347
2a519311 5348 if (n_ssids)
5ba63533 5349 request->ssids = (void *)&request->channels[n_channels];
2a519311 5350 request->n_ssids = n_ssids;
70692ad2
JM		 5351 if (ie_len) {
5352 if (request->ssids)
5353 request->ie = (void *)(request->ssids + n_ssids);
5354 else
5355 request->ie = (void *)(request->channels + n_channels);
5356 }
2a519311 5357
584991dc 5358 i = 0;
2a519311
JB		 5359 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5360 /* user specified, bail out if channel not found */
2a519311 5361 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5362 struct ieee80211_channel *chan;
5363
5364 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5365
5366 if (!chan) {
2a519311
JB		 5367 err = -EINVAL;
5368 goto out_free;
5369 }
584991dc
JB		 5370
5371 /* ignore disabled channels */
5372 if (chan->flags & IEEE80211_CHAN_DISABLED)
5373 continue;
5374
5375 request->channels[i] = chan;
2a519311
JB		 5376 i++;
5377 }
5378 } else {
34850ab2
JB		 5379 enum ieee80211_band band;
5380
2a519311 5381 /* all channels */
2a519311
JB		 5382 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5383 int j;
5384 if (!wiphy->bands[band])
5385 continue;
5386 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5387 struct ieee80211_channel *chan;
5388
5389 chan = &wiphy->bands[band]->channels[j];
5390
5391 if (chan->flags & IEEE80211_CHAN_DISABLED)
5392 continue;
5393
5394 request->channels[i] = chan;
2a519311
JB		 5395 i++;
5396 }
5397 }
5398 }
5399
584991dc
JB		 5400 if (!i) {
5401 err = -EINVAL;
5402 goto out_free;
5403 }
5404
5405 request->n_channels = i;
5406
2a519311
JB		 5407 i = 0;
5408 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5409 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5410 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5411 err = -EINVAL;
5412 goto out_free;
5413 }
57a27e1d 5414 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5415 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5416 i++;
5417 }
5418 }
5419
70692ad2
JM		 5420 if (info->attrs[NL80211_ATTR_IE]) {
5421 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5422 memcpy((void *)request->ie,
5423 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5424 request->ie_len);
5425 }
5426
34850ab2 5427 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5428 if (wiphy->bands[i])
5429 request->rates[i] =
5430 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5431
5432 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5433 nla_for_each_nested(attr,
5434 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5435 tmp) {
5436 enum ieee80211_band band = nla_type(attr);
5437
84404623 5438 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5439 err = -EINVAL;
5440 goto out_free;
5441 }
1b09cd82
FF		 5442
5443 if (!wiphy->bands[band])
5444 continue;
5445
34850ab2
JB		 5446 err = ieee80211_get_ratemask(wiphy->bands[band],
5447 nla_data(attr),
5448 nla_len(attr),
5449 &request->rates[band]);
5450 if (err)
5451 goto out_free;
5452 }
5453 }
5454
46856bbf 5455 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5456 request->flags = nla_get_u32(
5457 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5458 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5459 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5460 err = -EOPNOTSUPP;
5461 goto out_free;
5462 }
5463 }
ed473771 5464
e9f935e3
RM		 5465 request->no_cck =
5466 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5467
fd014284 5468 request->wdev = wdev;
79c97e97 5469 request->wiphy = &rdev->wiphy;
15d6030b 5470 request->scan_start = jiffies;
2a519311 5471
79c97e97 5472 rdev->scan_req = request;
e35e4d28 5473 err = rdev_scan(rdev, request);
2a519311 5474
463d0183 5475 if (!err) {
fd014284
JB		 5476 nl80211_send_scan_start(rdev, wdev);
5477 if (wdev->netdev)
5478 dev_hold(wdev->netdev);
4c476991 5479 } else {
2a519311 5480 out_free:
79c97e97 5481 rdev->scan_req = NULL;
2a519311
JB		 5482 kfree(request);
5483 }
3b85875a 5484
f9f47529 5485 unlock:
2a519311
JB		 5486 return err;
5487}
5488
807f8a8c
LC		 5489static int nl80211_start_sched_scan(struct sk_buff *skb,
5490 struct genl_info *info)
5491{
5492 struct cfg80211_sched_scan_request *request;
5493 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5494 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5495 struct nlattr *attr;
5496 struct wiphy *wiphy;
a1f1c21c 5497 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5498 u32 interval;
807f8a8c
LC		 5499 enum ieee80211_band band;
5500 size_t ie_len;
a1f1c21c 5501 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5502 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5503
5504 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5505 !rdev->ops->sched_scan_start)
5506 return -EOPNOTSUPP;
5507
5508 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5509 return -EINVAL;
5510
bbe6ad6d
LC		 5511 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5512 return -EINVAL;
5513
5514 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5515 if (interval == 0)
5516 return -EINVAL;
5517
807f8a8c
LC		 5518 wiphy = &rdev->wiphy;
5519
5520 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5521 n_channels = validate_scan_freqs(
5522 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5523 if (!n_channels)
5524 return -EINVAL;
5525 } else {
bdfbec2d 5526 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5527 }
5528
5529 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5530 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5531 tmp)
5532 n_ssids++;
5533
93b6aa69 5534 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5535 return -EINVAL;
5536
ea73cbce
JB		 5537 /*
5538 * First, count the number of 'real' matchsets. Due to an issue with
5539 * the old implementation, matchsets containing only the RSSI attribute
5540 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5541 * RSSI for all matchsets, rather than their own matchset for reporting
5542 * all APs with a strong RSSI. This is needed to be compatible with
5543 * older userspace that treated a matchset with only the RSSI as the
5544 * global RSSI for all other matchsets - if there are other matchsets.
5545 */
5546 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5547 nla_for_each_nested(attr,
5548 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5549 tmp) {
5550 struct nlattr *rssi;
5551
5552 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5553 nla_data(attr), nla_len(attr),
5554 nl80211_match_policy);
5555 if (err)
5556 return err;
5557 /* add other standalone attributes here */
5558 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5559 n_match_sets++;
5560 continue;
5561 }
5562 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5563 if (rssi)
5564 default_match_rssi = nla_get_s32(rssi);
5565 }
5566 }
5567
5568 /* However, if there's no other matchset, add the RSSI one */
5569 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5570 n_match_sets = 1;
a1f1c21c
LC		 5571
5572 if (n_match_sets > wiphy->max_match_sets)
5573 return -EINVAL;
5574
807f8a8c
LC		 5575 if (info->attrs[NL80211_ATTR_IE])
5576 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5577 else
5578 ie_len = 0;
5579
5a865bad 5580 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5581 return -EINVAL;
5582
c10841ca
LC		 5583 if (rdev->sched_scan_req) {
5584 err = -EINPROGRESS;
5585 goto out;
5586 }
5587
807f8a8c 5588 request = kzalloc(sizeof(*request)
a2cd43c5 5589 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5590 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5591 + sizeof(*request->channels) * n_channels
807f8a8c 5592 + ie_len, GFP_KERNEL);
c10841ca
LC		 5593 if (!request) {
5594 err = -ENOMEM;
5595 goto out;
5596 }
807f8a8c
LC		 5597
5598 if (n_ssids)
5599 request->ssids = (void *)&request->channels[n_channels];
5600 request->n_ssids = n_ssids;
5601 if (ie_len) {
5602 if (request->ssids)
5603 request->ie = (void *)(request->ssids + n_ssids);
5604 else
5605 request->ie = (void *)(request->channels + n_channels);
5606 }
5607
a1f1c21c
LC		 5608 if (n_match_sets) {
5609 if (request->ie)
5610 request->match_sets = (void *)(request->ie + ie_len);
5611 else if (request->ssids)
5612 request->match_sets =
5613 (void *)(request->ssids + n_ssids);
5614 else
5615 request->match_sets =
5616 (void *)(request->channels + n_channels);
5617 }
5618 request->n_match_sets = n_match_sets;
5619
807f8a8c
LC		 5620 i = 0;
5621 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5622 /* user specified, bail out if channel not found */
5623 nla_for_each_nested(attr,
5624 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5625 tmp) {
5626 struct ieee80211_channel *chan;
5627
5628 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5629
5630 if (!chan) {
5631 err = -EINVAL;
5632 goto out_free;
5633 }
5634
5635 /* ignore disabled channels */
5636 if (chan->flags & IEEE80211_CHAN_DISABLED)
5637 continue;
5638
5639 request->channels[i] = chan;
5640 i++;
5641 }
5642 } else {
5643 /* all channels */
5644 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5645 int j;
5646 if (!wiphy->bands[band])
5647 continue;
5648 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5649 struct ieee80211_channel *chan;
5650
5651 chan = &wiphy->bands[band]->channels[j];
5652
5653 if (chan->flags & IEEE80211_CHAN_DISABLED)
5654 continue;
5655
5656 request->channels[i] = chan;
5657 i++;
5658 }
5659 }
5660 }
5661
5662 if (!i) {
5663 err = -EINVAL;
5664 goto out_free;
5665 }
5666
5667 request->n_channels = i;
5668
5669 i = 0;
5670 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5671 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5672 tmp) {
57a27e1d 5673 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5674 err = -EINVAL;
5675 goto out_free;
5676 }
57a27e1d 5677 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5678 memcpy(request->ssids[i].ssid, nla_data(attr),
5679 nla_len(attr));
807f8a8c
LC		 5680 i++;
5681 }
5682 }
5683
a1f1c21c
LC		 5684 i = 0;
5685 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5686 nla_for_each_nested(attr,
5687 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5688 tmp) {
88e920b4 5689 struct nlattr *ssid, *rssi;
a1f1c21c 5690
ae811e21
JB		 5691 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5692 nla_data(attr), nla_len(attr),
5693 nl80211_match_policy);
5694 if (err)
5695 goto out_free;
4a4ab0d7 5696 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5697 if (ssid) {
ea73cbce
JB		 5698 if (WARN_ON(i >= n_match_sets)) {
5699 /* this indicates a programming error,
5700 * the loop above should have verified
5701 * things properly
5702 */
5703 err = -EINVAL;
5704 goto out_free;
5705 }
5706
a1f1c21c
LC		 5707 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5708 err = -EINVAL;
5709 goto out_free;
5710 }
5711 memcpy(request->match_sets[i].ssid.ssid,
5712 nla_data(ssid), nla_len(ssid));
5713 request->match_sets[i].ssid.ssid_len =
5714 nla_len(ssid);
ea73cbce
JB		 5715 /* special attribute - old implemenation w/a */
5716 request->match_sets[i].rssi_thold =
5717 default_match_rssi;
5718 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5719 if (rssi)
5720 request->match_sets[i].rssi_thold =
5721 nla_get_s32(rssi);
a1f1c21c
LC		 5722 }
5723 i++;
5724 }
ea73cbce
JB		 5725
5726 /* there was no other matchset, so the RSSI one is alone */
5727 if (i == 0)
5728 request->match_sets[0].rssi_thold = default_match_rssi;
5729
5730 request->min_rssi_thold = INT_MAX;
5731 for (i = 0; i < n_match_sets; i++)
5732 request->min_rssi_thold =
5733 min(request->match_sets[i].rssi_thold,
5734 request->min_rssi_thold);
5735 } else {
5736 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5737 }
5738
9900e484
JB		 5739 if (ie_len) {
5740 request->ie_len = ie_len;
807f8a8c
LC		 5741 memcpy((void *)request->ie,
5742 nla_data(info->attrs[NL80211_ATTR_IE]),
5743 request->ie_len);
5744 }
5745
46856bbf 5746 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5747 request->flags = nla_get_u32(
5748 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5749 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5750 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5751 err = -EOPNOTSUPP;
5752 goto out_free;
5753 }
5754 }
ed473771 5755
807f8a8c
LC		 5756 request->dev = dev;
5757 request->wiphy = &rdev->wiphy;
bbe6ad6d 5758 request->interval = interval;
15d6030b 5759 request->scan_start = jiffies;
807f8a8c 5760
e35e4d28 5761 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5762 if (!err) {
5763 rdev->sched_scan_req = request;
5764 nl80211_send_sched_scan(rdev, dev,
5765 NL80211_CMD_START_SCHED_SCAN);
5766 goto out;
5767 }
5768
5769out_free:
5770 kfree(request);
5771out:
5772 return err;
5773}
5774
5775static int nl80211_stop_sched_scan(struct sk_buff *skb,
5776 struct genl_info *info)
5777{
5778 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5779
5780 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5781 !rdev->ops->sched_scan_stop)
5782 return -EOPNOTSUPP;
5783
5fe231e8 5784 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5785}
5786
04f39047
SW		 5787static int nl80211_start_radar_detection(struct sk_buff *skb,
5788 struct genl_info *info)
5789{
5790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5791 struct net_device *dev = info->user_ptr[1];
5792 struct wireless_dev *wdev = dev->ieee80211_ptr;
5793 struct cfg80211_chan_def chandef;
55f7435c 5794 enum nl80211_dfs_regions dfs_region;
31559f35 5795 unsigned int cac_time_ms;
04f39047
SW		 5796 int err;
5797
55f7435c
LR		 5798 dfs_region = reg_get_dfs_region(wdev->wiphy);
5799 if (dfs_region == NL80211_DFS_UNSET)
5800 return -EINVAL;
5801
04f39047
SW		 5802 err = nl80211_parse_chandef(rdev, info, &chandef);
5803 if (err)
5804 return err;
5805
ff311bc1
SW		 5806 if (netif_carrier_ok(dev))
5807 return -EBUSY;
5808
04f39047
SW		 5809 if (wdev->cac_started)
5810 return -EBUSY;
5811
5812 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5813 if (err < 0)
5814 return err;
5815
5816 if (err == 0)
5817 return -EINVAL;
5818
fe7c3a1f 5819 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5820 return -EINVAL;
5821
5822 if (!rdev->ops->start_radar_detection)
5823 return -EOPNOTSUPP;
5824
04f39047
SW		 5825 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5826 chandef.chan, CHAN_MODE_SHARED,
5827 BIT(chandef.width));
5828 if (err)
5fe231e8 5829 return err;
04f39047 5830
31559f35
JD		 5831 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5832 if (WARN_ON(!cac_time_ms))
5833 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5834
5835 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5836 cac_time_ms);
04f39047 5837 if (!err) {
9e0e2961 5838 wdev->chandef = chandef;
04f39047
SW		 5839 wdev->cac_started = true;
5840 wdev->cac_start_time = jiffies;
31559f35 5841 wdev->cac_time_ms = cac_time_ms;
04f39047 5842 }
04f39047
SW		 5843 return err;
5844}
5845
16ef1fe2
SW		 5846static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5847{
5848 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5849 struct net_device *dev = info->user_ptr[1];
5850 struct wireless_dev *wdev = dev->ieee80211_ptr;
5851 struct cfg80211_csa_settings params;
5852 /* csa_attrs is defined static to avoid waste of stack size - this
5853 * function is called under RTNL lock, so this should not be a problem.
5854 */
5855 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5856 u8 radar_detect_width = 0;
5857 int err;
ee4bc9e7 5858 bool need_new_beacon = false;
16ef1fe2
SW		 5859
5860 if (!rdev->ops->channel_switch ||
5861 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5862 return -EOPNOTSUPP;
5863
ee4bc9e7
SW		 5864 switch (dev->ieee80211_ptr->iftype) {
5865 case NL80211_IFTYPE_AP:
5866 case NL80211_IFTYPE_P2P_GO:
5867 need_new_beacon = true;
5868
5869 /* useless if AP is not running */
5870 if (!wdev->beacon_interval)
1ff79dfa 5871 return -ENOTCONN;
ee4bc9e7
SW		 5872 break;
5873 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 5874 if (!wdev->ssid_len)
5875 return -ENOTCONN;
5876 break;
c6da674a 5877 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 5878 if (!wdev->mesh_id_len)
5879 return -ENOTCONN;
ee4bc9e7
SW		 5880 break;
5881 default:
16ef1fe2 5882 return -EOPNOTSUPP;
ee4bc9e7 5883 }
16ef1fe2
SW		 5884
5885 memset(&params, 0, sizeof(params));
5886
5887 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5888 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5889 return -EINVAL;
5890
5891 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5892 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5893 return -EINVAL;
5894
5895 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5896
ee4bc9e7
SW		 5897 if (!need_new_beacon)
5898 goto skip_beacons;
5899
16ef1fe2
SW		 5900 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5901 if (err)
5902 return err;
5903
5904 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5905 info->attrs[NL80211_ATTR_CSA_IES],
5906 nl80211_policy);
5907 if (err)
5908 return err;
5909
5910 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5911 if (err)
5912 return err;
5913
5914 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5915 return -EINVAL;
5916
5917 params.counter_offset_beacon =
5918 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5919 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5920 return -EINVAL;
5921
5922 /* sanity check - counters should be the same */
5923 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5924 params.count)
5925 return -EINVAL;
5926
5927 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5928 params.counter_offset_presp =
5929 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5930 if (params.counter_offset_presp >=
5931 params.beacon_csa.probe_resp_len)
5932 return -EINVAL;
5933
5934 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5935 params.count)
5936 return -EINVAL;
5937 }
5938
ee4bc9e7 5939skip_beacons:
16ef1fe2
SW		 5940 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5941 if (err)
5942 return err;
5943
5944 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
5945 return -EINVAL;
5946
e5d2f954
LC		 5947 switch (dev->ieee80211_ptr->iftype) {
5948 case NL80211_IFTYPE_AP:
5949 case NL80211_IFTYPE_P2P_GO:
5950 case NL80211_IFTYPE_ADHOC:
5951 case NL80211_IFTYPE_MESH_POINT:
ee4bc9e7
SW		 5952 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5953 &params.chandef);
e5d2f954 5954 if (err < 0)
ee4bc9e7 5955 return err;
e5d2f954 5956 if (err) {
ee4bc9e7
SW		 5957 radar_detect_width = BIT(params.chandef.width);
5958 params.radar_required = true;
5959 }
e5d2f954
LC		 5960 break;
5961 default:
5962 break;
16ef1fe2
SW		 5963 }
5964
5965 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5966 params.chandef.chan,
5967 CHAN_MODE_SHARED,
5968 radar_detect_width);
5969 if (err)
5970 return err;
5971
5972 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5973 params.block_tx = true;
5974
c56589ed
SW		 5975 wdev_lock(wdev);
5976 err = rdev_channel_switch(rdev, dev, &params);
5977 wdev_unlock(wdev);
5978
5979 return err;
16ef1fe2
SW		 5980}
5981
9720bb3a
JB		 5982static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5983 u32 seq, int flags,
2a519311 5984 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5985 struct wireless_dev *wdev,
5986 struct cfg80211_internal_bss *intbss)
2a519311 5987{
48ab905d 5988 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5989 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5990 void *hdr;
5991 struct nlattr *bss;
8cef2c9d 5992 bool tsf = false;
48ab905d
JB		 5993
5994 ASSERT_WDEV_LOCK(wdev);
2a519311 5995
15e47304 5996 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5997 NL80211_CMD_NEW_SCAN_RESULTS);
5998 if (!hdr)
5999 return -1;
6000
9720bb3a
JB		 6001 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6002
97990a06
JB		 6003 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6004 goto nla_put_failure;
6005 if (wdev->netdev &&
9360ffd1
DM		 6006 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6007 goto nla_put_failure;
97990a06
JB		 6008 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6009 goto nla_put_failure;
2a519311
JB		 6010
6011 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6012 if (!bss)
6013 goto nla_put_failure;
9360ffd1 6014 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6015 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6016 goto nla_put_failure;
9caf0364
JB		 6017
6018 rcu_read_lock();
6019 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6020 if (ies) {
6021 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6022 goto fail_unlock_rcu;
6023 tsf = true;
6024 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6025 ies->len, ies->data))
6026 goto fail_unlock_rcu;
9caf0364
JB		 6027 }
6028 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 6029 if (ies) {
6030 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6031 goto fail_unlock_rcu;
6032 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6033 ies->len, ies->data))
6034 goto fail_unlock_rcu;
9caf0364
JB		 6035 }
6036 rcu_read_unlock();
6037
9360ffd1
DM		 6038 if (res->beacon_interval &&
6039 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6040 goto nla_put_failure;
6041 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6042 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6043 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6044 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6045 jiffies_to_msecs(jiffies - intbss->ts)))
6046 goto nla_put_failure;
2a519311 6047
77965c97 6048 switch (rdev->wiphy.signal_type) {
2a519311 6049 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6050 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6051 goto nla_put_failure;
2a519311
JB		 6052 break;
6053 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6054 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6055 goto nla_put_failure;
2a519311
JB		 6056 break;
6057 default:
6058 break;
6059 }
6060
48ab905d 6061 switch (wdev->iftype) {
074ac8df 6062 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6063 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6064 if (intbss == wdev->current_bss &&
6065 nla_put_u32(msg, NL80211_BSS_STATUS,
6066 NL80211_BSS_STATUS_ASSOCIATED))
6067 goto nla_put_failure;
48ab905d
JB		 6068 break;
6069 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6070 if (intbss == wdev->current_bss &&
6071 nla_put_u32(msg, NL80211_BSS_STATUS,
6072 NL80211_BSS_STATUS_IBSS_JOINED))
6073 goto nla_put_failure;
48ab905d
JB		 6074 break;
6075 default:
6076 break;
6077 }
6078
2a519311
JB		 6079 nla_nest_end(msg, bss);
6080
6081 return genlmsg_end(msg, hdr);
6082
8cef2c9d
JB		 6083 fail_unlock_rcu:
6084 rcu_read_unlock();
2a519311
JB		 6085 nla_put_failure:
6086 genlmsg_cancel(msg, hdr);
6087 return -EMSGSIZE;
6088}
6089
97990a06 6090static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6091{
48ab905d 6092 struct cfg80211_registered_device *rdev;
2a519311 6093 struct cfg80211_internal_bss *scan;
48ab905d 6094 struct wireless_dev *wdev;
97990a06 6095 int start = cb->args[2], idx = 0;
2a519311
JB		 6096 int err;
6097
97990a06 6098 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6099 if (err)
6100 return err;
2a519311 6101
48ab905d
JB		 6102 wdev_lock(wdev);
6103 spin_lock_bh(&rdev->bss_lock);
6104 cfg80211_bss_expire(rdev);
6105
9720bb3a
JB		 6106 cb->seq = rdev->bss_generation;
6107
48ab905d 6108 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6109 if (++idx <= start)
6110 continue;
9720bb3a 6111 if (nl80211_send_bss(skb, cb,
2a519311 6112 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6113 rdev, wdev, scan) < 0) {
2a519311 6114 idx--;
67748893 6115 break;
2a519311
JB		 6116 }
6117 }
6118
48ab905d
JB		 6119 spin_unlock_bh(&rdev->bss_lock);
6120 wdev_unlock(wdev);
2a519311 6121
97990a06
JB		 6122 cb->args[2] = idx;
6123 nl80211_finish_wdev_dump(rdev);
2a519311 6124
67748893 6125 return skb->len;
2a519311
JB		 6126}
6127
15e47304 6128static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6129 int flags, struct net_device *dev,
6130 struct survey_info *survey)
6131{
6132 void *hdr;
6133 struct nlattr *infoattr;
6134
15e47304 6135 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6136 NL80211_CMD_NEW_SURVEY_RESULTS);
6137 if (!hdr)
6138 return -ENOMEM;
6139
9360ffd1
DM		 6140 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6141 goto nla_put_failure;
61fa713c
HS		 6142
6143 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6144 if (!infoattr)
6145 goto nla_put_failure;
6146
9360ffd1
DM		 6147 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6148 survey->channel->center_freq))
6149 goto nla_put_failure;
6150
6151 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6152 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6153 goto nla_put_failure;
6154 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6155 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6156 goto nla_put_failure;
6157 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6158 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6159 survey->channel_time))
6160 goto nla_put_failure;
6161 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6162 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6163 survey->channel_time_busy))
6164 goto nla_put_failure;
6165 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6166 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6167 survey->channel_time_ext_busy))
6168 goto nla_put_failure;
6169 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6170 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6171 survey->channel_time_rx))
6172 goto nla_put_failure;
6173 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6174 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6175 survey->channel_time_tx))
6176 goto nla_put_failure;
61fa713c
HS		 6177
6178 nla_nest_end(msg, infoattr);
6179
6180 return genlmsg_end(msg, hdr);
6181
6182 nla_put_failure:
6183 genlmsg_cancel(msg, hdr);
6184 return -EMSGSIZE;
6185}
6186
6187static int nl80211_dump_survey(struct sk_buff *skb,
6188 struct netlink_callback *cb)
6189{
6190 struct survey_info survey;
6191 struct cfg80211_registered_device *dev;
97990a06
JB		 6192 struct wireless_dev *wdev;
6193 int survey_idx = cb->args[2];
61fa713c
HS		 6194 int res;
6195
97990a06 6196 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 6197 if (res)
6198 return res;
61fa713c 6199
97990a06
JB		 6200 if (!wdev->netdev) {
6201 res = -EINVAL;
6202 goto out_err;
6203 }
6204
61fa713c
HS		 6205 if (!dev->ops->dump_survey) {
6206 res = -EOPNOTSUPP;
6207 goto out_err;
6208 }
6209
6210 while (1) {
180cdc79
LR		 6211 struct ieee80211_channel *chan;
6212
97990a06 6213 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6214 if (res == -ENOENT)
6215 break;
6216 if (res)
6217 goto out_err;
6218
180cdc79
LR		 6219 /* Survey without a channel doesn't make sense */
6220 if (!survey.channel) {
6221 res = -EINVAL;
6222 goto out;
6223 }
6224
6225 chan = ieee80211_get_channel(&dev->wiphy,
6226 survey.channel->center_freq);
6227 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6228 survey_idx++;
6229 continue;
6230 }
6231
61fa713c 6232 if (nl80211_send_survey(skb,
15e47304 6233 NETLINK_CB(cb->skb).portid,
61fa713c 6234 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6235 wdev->netdev, &survey) < 0)
61fa713c
HS		 6236 goto out;
6237 survey_idx++;
6238 }
6239
6240 out:
97990a06 6241 cb->args[2] = survey_idx;
61fa713c
HS		 6242 res = skb->len;
6243 out_err:
97990a06 6244 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 6245 return res;
6246}
6247
b23aa676
SO		 6248static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6249{
6250 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6251 NL80211_WPA_VERSION_2));
6252}
6253
636a5d36
JM		 6254static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6255{
4c476991
JB		 6256 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6257 struct net_device *dev = info->user_ptr[1];
19957bb3 6258 struct ieee80211_channel *chan;
e39e5b5e
JM		 6259 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6260 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6261 enum nl80211_auth_type auth_type;
fffd0934 6262 struct key_parse key;
d5cdfacb 6263 bool local_state_change;
636a5d36 6264
f4a11bb0
JB		 6265 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6266 return -EINVAL;
6267
6268 if (!info->attrs[NL80211_ATTR_MAC])
6269 return -EINVAL;
6270
1778092e
JM		 6271 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6272 return -EINVAL;
6273
19957bb3
JB		 6274 if (!info->attrs[NL80211_ATTR_SSID])
6275 return -EINVAL;
6276
6277 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6278 return -EINVAL;
6279
fffd0934
JB		 6280 err = nl80211_parse_key(info, &key);
6281 if (err)
6282 return err;
6283
6284 if (key.idx >= 0) {
e31b8213
JB		 6285 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6286 return -EINVAL;
fffd0934
JB		 6287 if (!key.p.key || !key.p.key_len)
6288 return -EINVAL;
6289 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6290 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6291 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6292 key.p.key_len != WLAN_KEY_LEN_WEP104))
6293 return -EINVAL;
6294 if (key.idx > 4)
6295 return -EINVAL;
6296 } else {
6297 key.p.key_len = 0;
6298 key.p.key = NULL;
6299 }
6300
afea0b7a
JB		 6301 if (key.idx >= 0) {
6302 int i;
6303 bool ok = false;
6304 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6305 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6306 ok = true;
6307 break;
6308 }
6309 }
4c476991
JB		 6310 if (!ok)
6311 return -EINVAL;
afea0b7a
JB		 6312 }
6313
4c476991
JB		 6314 if (!rdev->ops->auth)
6315 return -EOPNOTSUPP;
636a5d36 6316
074ac8df 6317 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6318 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6319 return -EOPNOTSUPP;
eec60b03 6320
19957bb3 6321 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6322 chan = nl80211_get_valid_chan(&rdev->wiphy,
6323 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6324 if (!chan)
4c476991 6325 return -EINVAL;
636a5d36 6326
19957bb3
JB		 6327 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6328 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6329
6330 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6331 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6332 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6333 }
6334
19957bb3 6335 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6336 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6337 return -EINVAL;
636a5d36 6338
e39e5b5e
JM		 6339 if (auth_type == NL80211_AUTHTYPE_SAE &&
6340 !info->attrs[NL80211_ATTR_SAE_DATA])
6341 return -EINVAL;
6342
6343 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6344 if (auth_type != NL80211_AUTHTYPE_SAE)
6345 return -EINVAL;
6346 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6347 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6348 /* need to include at least Auth Transaction and Status Code */
6349 if (sae_data_len < 4)
6350 return -EINVAL;
6351 }
6352
d5cdfacb
JM		 6353 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6354
95de817b
JB		 6355 /*
6356 * Since we no longer track auth state, ignore
6357 * requests to only change local state.
6358 */
6359 if (local_state_change)
6360 return 0;
6361
91bf9b26
JB		 6362 wdev_lock(dev->ieee80211_ptr);
6363 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6364 ssid, ssid_len, ie, ie_len,
6365 key.p.key, key.p.key_len, key.idx,
6366 sae_data, sae_data_len);
6367 wdev_unlock(dev->ieee80211_ptr);
6368 return err;
636a5d36
JM		 6369}
6370
c0692b8f
JB		 6371static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6372 struct genl_info *info,
3dc27d25
JB		 6373 struct cfg80211_crypto_settings *settings,
6374 int cipher_limit)
b23aa676 6375{
c0b2bbd8
JB		 6376 memset(settings, 0, sizeof(*settings));
6377
b23aa676
SO		 6378 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6379
c0692b8f
JB		 6380 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6381 u16 proto;
6382 proto = nla_get_u16(
6383 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6384 settings->control_port_ethertype = cpu_to_be16(proto);
6385 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6386 proto != ETH_P_PAE)
6387 return -EINVAL;
6388 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6389 settings->control_port_no_encrypt = true;
6390 } else
6391 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6392
b23aa676
SO		 6393 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6394 void *data;
6395 int len, i;
6396
6397 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6398 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6399 settings->n_ciphers_pairwise = len / sizeof(u32);
6400
6401 if (len % sizeof(u32))
6402 return -EINVAL;
6403
3dc27d25 6404 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6405 return -EINVAL;
6406
6407 memcpy(settings->ciphers_pairwise, data, len);
6408
6409 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6410 if (!cfg80211_supported_cipher_suite(
6411 &rdev->wiphy,
b23aa676
SO		 6412 settings->ciphers_pairwise[i]))
6413 return -EINVAL;
6414 }
6415
6416 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6417 settings->cipher_group =
6418 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6419 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6420 settings->cipher_group))
b23aa676
SO		 6421 return -EINVAL;
6422 }
6423
6424 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6425 settings->wpa_versions =
6426 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6427 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6428 return -EINVAL;
6429 }
6430
6431 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6432 void *data;
6d30240e 6433 int len;
b23aa676
SO		 6434
6435 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6436 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6437 settings->n_akm_suites = len / sizeof(u32);
6438
6439 if (len % sizeof(u32))
6440 return -EINVAL;
6441
1b9ca027
JM		 6442 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6443 return -EINVAL;
6444
b23aa676 6445 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6446 }
6447
6448 return 0;
6449}
6450
636a5d36
JM		 6451static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6452{
4c476991
JB		 6453 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6454 struct net_device *dev = info->user_ptr[1];
f444de05 6455 struct ieee80211_channel *chan;
f62fab73
JB		 6456 struct cfg80211_assoc_request req = {};
6457 const u8 *bssid, *ssid;
6458 int err, ssid_len = 0;
636a5d36 6459
f4a11bb0
JB		 6460 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6461 return -EINVAL;
6462
6463 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6464 !info->attrs[NL80211_ATTR_SSID] ||
6465 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6466 return -EINVAL;
6467
4c476991
JB		 6468 if (!rdev->ops->assoc)
6469 return -EOPNOTSUPP;
636a5d36 6470
074ac8df 6471 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6472 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6473 return -EOPNOTSUPP;
eec60b03 6474
19957bb3 6475 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6476
664834de
JM		 6477 chan = nl80211_get_valid_chan(&rdev->wiphy,
6478 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6479 if (!chan)
4c476991 6480 return -EINVAL;
636a5d36 6481
19957bb3
JB		 6482 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6483 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6484
6485 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6486 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6487 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6488 }
6489
dc6382ce 6490 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6491 enum nl80211_mfp mfp =
dc6382ce 6492 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6493 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6494 req.use_mfp = true;
4c476991
JB		 6495 else if (mfp != NL80211_MFP_NO)
6496 return -EINVAL;
dc6382ce
JM		 6497 }
6498
3e5d7649 6499 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6500 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6501
7e7c8926 6502 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6503 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6504
6505 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6506 memcpy(&req.ht_capa_mask,
6507 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6508 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6509
6510 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6511 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6512 return -EINVAL;
f62fab73
JB		 6513 memcpy(&req.ht_capa,
6514 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6515 sizeof(req.ht_capa));
7e7c8926
BG		 6516 }
6517
ee2aca34 6518 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6519 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6520
6521 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6522 memcpy(&req.vht_capa_mask,
6523 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6524 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6525
6526 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6527 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6528 return -EINVAL;
f62fab73
JB		 6529 memcpy(&req.vht_capa,
6530 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6531 sizeof(req.vht_capa));
ee2aca34
JB		 6532 }
6533
f62fab73 6534 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6535 if (!err) {
6536 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6537 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6538 ssid, ssid_len, &req);
91bf9b26
JB		 6539 wdev_unlock(dev->ieee80211_ptr);
6540 }
636a5d36 6541
636a5d36
JM		 6542 return err;
6543}
6544
6545static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6546{
4c476991
JB		 6547 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6548 struct net_device *dev = info->user_ptr[1];
19957bb3 6549 const u8 *ie = NULL, *bssid;
91bf9b26 6550 int ie_len = 0, err;
19957bb3 6551 u16 reason_code;
d5cdfacb 6552 bool local_state_change;
636a5d36 6553
f4a11bb0
JB		 6554 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6555 return -EINVAL;
6556
6557 if (!info->attrs[NL80211_ATTR_MAC])
6558 return -EINVAL;
6559
6560 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6561 return -EINVAL;
6562
4c476991
JB		 6563 if (!rdev->ops->deauth)
6564 return -EOPNOTSUPP;
636a5d36 6565
074ac8df 6566 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6567 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6568 return -EOPNOTSUPP;
eec60b03 6569
19957bb3 6570 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6571
19957bb3
JB		 6572 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6573 if (reason_code == 0) {
f4a11bb0 6574 /* Reason Code 0 is reserved */
4c476991 6575 return -EINVAL;
255e737e 6576 }
636a5d36
JM		 6577
6578 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6579 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6580 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6581 }
6582
d5cdfacb
JM		 6583 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6584
91bf9b26
JB		 6585 wdev_lock(dev->ieee80211_ptr);
6586 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6587 local_state_change);
6588 wdev_unlock(dev->ieee80211_ptr);
6589 return err;
636a5d36
JM		 6590}
6591
6592static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6593{
4c476991
JB		 6594 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6595 struct net_device *dev = info->user_ptr[1];
19957bb3 6596 const u8 *ie = NULL, *bssid;
91bf9b26 6597 int ie_len = 0, err;
19957bb3 6598 u16 reason_code;
d5cdfacb 6599 bool local_state_change;
636a5d36 6600
f4a11bb0
JB		 6601 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6602 return -EINVAL;
6603
6604 if (!info->attrs[NL80211_ATTR_MAC])
6605 return -EINVAL;
6606
6607 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6608 return -EINVAL;
6609
4c476991
JB		 6610 if (!rdev->ops->disassoc)
6611 return -EOPNOTSUPP;
636a5d36 6612
074ac8df 6613 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6614 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6615 return -EOPNOTSUPP;
eec60b03 6616
19957bb3 6617 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6618
19957bb3
JB		 6619 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6620 if (reason_code == 0) {
f4a11bb0 6621 /* Reason Code 0 is reserved */
4c476991 6622 return -EINVAL;
255e737e 6623 }
636a5d36
JM		 6624
6625 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6626 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6627 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6628 }
6629
d5cdfacb
JM		 6630 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6631
91bf9b26
JB		 6632 wdev_lock(dev->ieee80211_ptr);
6633 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6634 local_state_change);
6635 wdev_unlock(dev->ieee80211_ptr);
6636 return err;
636a5d36
JM		 6637}
6638
dd5b4cc7
FF		 6639static bool
6640nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6641 int mcast_rate[IEEE80211_NUM_BANDS],
6642 int rateval)
6643{
6644 struct wiphy *wiphy = &rdev->wiphy;
6645 bool found = false;
6646 int band, i;
6647
6648 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6649 struct ieee80211_supported_band *sband;
6650
6651 sband = wiphy->bands[band];
6652 if (!sband)
6653 continue;
6654
6655 for (i = 0; i < sband->n_bitrates; i++) {
6656 if (sband->bitrates[i].bitrate == rateval) {
6657 mcast_rate[band] = i + 1;
6658 found = true;
6659 break;
6660 }
6661 }
6662 }
6663
6664 return found;
6665}
6666
04a773ad
JB		 6667static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6668{
4c476991
JB		 6669 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6670 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6671 struct cfg80211_ibss_params ibss;
6672 struct wiphy *wiphy;
fffd0934 6673 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6674 int err;
6675
8e30bc55
JB		 6676 memset(&ibss, 0, sizeof(ibss));
6677
04a773ad
JB		 6678 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6679 return -EINVAL;
6680
683b6d3b 6681 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6682 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6683 return -EINVAL;
6684
8e30bc55
JB		 6685 ibss.beacon_interval = 100;
6686
6687 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6688 ibss.beacon_interval =
6689 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6690 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6691 return -EINVAL;
6692 }
6693
4c476991
JB		 6694 if (!rdev->ops->join_ibss)
6695 return -EOPNOTSUPP;
04a773ad 6696
4c476991
JB		 6697 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6698 return -EOPNOTSUPP;
04a773ad 6699
79c97e97 6700 wiphy = &rdev->wiphy;
04a773ad 6701
39193498 6702 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6703 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6704
6705 if (!is_valid_ether_addr(ibss.bssid))
6706 return -EINVAL;
6707 }
04a773ad
JB		 6708 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6709 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6710
6711 if (info->attrs[NL80211_ATTR_IE]) {
6712 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6713 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6714 }
6715
683b6d3b
JB		 6716 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6717 if (err)
6718 return err;
04a773ad 6719
683b6d3b 6720 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6721 return -EINVAL;
6722
2f301ab2 6723 switch (ibss.chandef.width) {
bf372645
SW		 6724 case NL80211_CHAN_WIDTH_5:
6725 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6726 case NL80211_CHAN_WIDTH_20_NOHT:
6727 break;
6728 case NL80211_CHAN_WIDTH_20:
6729 case NL80211_CHAN_WIDTH_40:
6730 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6731 break;
6732 default:
c04d6150 6733 return -EINVAL;
2f301ab2 6734 }
db9c64cf 6735
04a773ad 6736 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6737 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6738
fbd2c8dc
TP		 6739 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6740 u8 *rates =
6741 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6742 int n_rates =
6743 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6744 struct ieee80211_supported_band *sband =
683b6d3b 6745 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6746
34850ab2
JB		 6747 err = ieee80211_get_ratemask(sband, rates, n_rates,
6748 &ibss.basic_rates);
6749 if (err)
6750 return err;
fbd2c8dc 6751 }
dd5b4cc7 6752
803768f5
SW		 6753 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6754 memcpy(&ibss.ht_capa_mask,
6755 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6756 sizeof(ibss.ht_capa_mask));
6757
6758 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6759 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6760 return -EINVAL;
6761 memcpy(&ibss.ht_capa,
6762 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6763 sizeof(ibss.ht_capa));
6764 }
6765
dd5b4cc7
FF		 6766 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6767 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6768 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6769 return -EINVAL;
fbd2c8dc 6770
4c476991 6771 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6772 bool no_ht = false;
6773
4c476991 6774 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6775 info->attrs[NL80211_ATTR_KEYS],
6776 &no_ht);
4c476991
JB		 6777 if (IS_ERR(connkeys))
6778 return PTR_ERR(connkeys);
de7044ee 6779
3d9d1d66
JB		 6780 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6781 no_ht) {
de7044ee
SM		 6782 kfree(connkeys);
6783 return -EINVAL;
6784 }
4c476991 6785 }
04a773ad 6786
267335d6
AQ		 6787 ibss.control_port =
6788 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6789
5336fa88
SW		 6790 ibss.userspace_handles_dfs =
6791 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6792
4c476991 6793 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6794 if (err)
6795 kfree(connkeys);
04a773ad
JB		 6796 return err;
6797}
6798
6799static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6800{
4c476991
JB		 6801 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6802 struct net_device *dev = info->user_ptr[1];
04a773ad 6803
4c476991
JB		 6804 if (!rdev->ops->leave_ibss)
6805 return -EOPNOTSUPP;
04a773ad 6806
4c476991
JB		 6807 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6808 return -EOPNOTSUPP;
04a773ad 6809
4c476991 6810 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6811}
6812
f4e583c8
AQ		 6813static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6814{
6815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6816 struct net_device *dev = info->user_ptr[1];
6817 int mcast_rate[IEEE80211_NUM_BANDS];
6818 u32 nla_rate;
6819 int err;
6820
6821 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6822 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6823 return -EOPNOTSUPP;
6824
6825 if (!rdev->ops->set_mcast_rate)
6826 return -EOPNOTSUPP;
6827
6828 memset(mcast_rate, 0, sizeof(mcast_rate));
6829
6830 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6831 return -EINVAL;
6832
6833 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6834 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6835 return -EINVAL;
6836
6837 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6838
6839 return err;
6840}
6841
ad7e718c
JB		 6842static struct sk_buff *
6843__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6844 int approxlen, u32 portid, u32 seq,
6845 enum nl80211_commands cmd,
567ffc35
JB		 6846 enum nl80211_attrs attr,
6847 const struct nl80211_vendor_cmd_info *info,
6848 gfp_t gfp)
ad7e718c
JB		 6849{
6850 struct sk_buff *skb;
6851 void *hdr;
6852 struct nlattr *data;
6853
6854 skb = nlmsg_new(approxlen + 100, gfp);
6855 if (!skb)
6856 return NULL;
6857
6858 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6859 if (!hdr) {
6860 kfree_skb(skb);
6861 return NULL;
6862 }
6863
6864 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6865 goto nla_put_failure;
567ffc35
JB		 6866
6867 if (info) {
6868 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6869 info->vendor_id))
6870 goto nla_put_failure;
6871 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6872 info->subcmd))
6873 goto nla_put_failure;
6874 }
6875
ad7e718c
JB		 6876 data = nla_nest_start(skb, attr);
6877
6878 ((void **)skb->cb)[0] = rdev;
6879 ((void **)skb->cb)[1] = hdr;
6880 ((void **)skb->cb)[2] = data;
6881
6882 return skb;
6883
6884 nla_put_failure:
6885 kfree_skb(skb);
6886 return NULL;
6887}
f4e583c8 6888
e03ad6ea
JB		 6889struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6890 enum nl80211_commands cmd,
6891 enum nl80211_attrs attr,
6892 int vendor_event_idx,
6893 int approxlen, gfp_t gfp)
6894{
6895 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6896 const struct nl80211_vendor_cmd_info *info;
6897
6898 switch (cmd) {
6899 case NL80211_CMD_TESTMODE:
6900 if (WARN_ON(vendor_event_idx != -1))
6901 return NULL;
6902 info = NULL;
6903 break;
6904 case NL80211_CMD_VENDOR:
6905 if (WARN_ON(vendor_event_idx < 0 ||
6906 vendor_event_idx >= wiphy->n_vendor_events))
6907 return NULL;
6908 info = &wiphy->vendor_events[vendor_event_idx];
6909 break;
6910 default:
6911 WARN_ON(1);
6912 return NULL;
6913 }
6914
6915 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6916 cmd, attr, info, gfp);
6917}
6918EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6919
6920void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6921{
6922 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6923 void *hdr = ((void **)skb->cb)[1];
6924 struct nlattr *data = ((void **)skb->cb)[2];
6925 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6926
6927 nla_nest_end(skb, data);
6928 genlmsg_end(skb, hdr);
6929
6930 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6931 mcgrp = NL80211_MCGRP_VENDOR;
6932
6933 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6934 mcgrp, gfp);
6935}
6936EXPORT_SYMBOL(__cfg80211_send_event_skb);
6937
aff89a9b 6938#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6939static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6940{
4c476991 6941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6942 struct wireless_dev *wdev =
6943 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6944 int err;
6945
fc73f11f
DS		 6946 if (!rdev->ops->testmode_cmd)
6947 return -EOPNOTSUPP;
6948
6949 if (IS_ERR(wdev)) {
6950 err = PTR_ERR(wdev);
6951 if (err != -EINVAL)
6952 return err;
6953 wdev = NULL;
6954 } else if (wdev->wiphy != &rdev->wiphy) {
6955 return -EINVAL;
6956 }
6957
aff89a9b
JB		 6958 if (!info->attrs[NL80211_ATTR_TESTDATA])
6959 return -EINVAL;
6960
ad7e718c 6961 rdev->cur_cmd_info = info;
fc73f11f 6962 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 6963 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6964 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 6965 rdev->cur_cmd_info = NULL;
aff89a9b 6966
aff89a9b
JB		 6967 return err;
6968}
6969
71063f0e
WYG		 6970static int nl80211_testmode_dump(struct sk_buff *skb,
6971 struct netlink_callback *cb)
6972{
00918d33 6973 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6974 int err;
6975 long phy_idx;
6976 void *data = NULL;
6977 int data_len = 0;
6978
5fe231e8
JB		 6979 rtnl_lock();
6980
71063f0e
WYG		 6981 if (cb->args[0]) {
6982 /*
6983 * 0 is a valid index, but not valid for args[0],
6984 * so we need to offset by 1.
6985 */
6986 phy_idx = cb->args[0] - 1;
6987 } else {
6988 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6989 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6990 nl80211_policy);
6991 if (err)
5fe231e8 6992 goto out_err;
00918d33 6993
2bd7e35d
JB		 6994 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6995 nl80211_fam.attrbuf);
6996 if (IS_ERR(rdev)) {
5fe231e8
JB		 6997 err = PTR_ERR(rdev);
6998 goto out_err;
00918d33 6999 }
2bd7e35d
JB		 7000 phy_idx = rdev->wiphy_idx;
7001 rdev = NULL;
2bd7e35d 7002
71063f0e
WYG		 7003 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7004 cb->args[1] =
7005 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7006 }
7007
7008 if (cb->args[1]) {
7009 data = nla_data((void *)cb->args[1]);
7010 data_len = nla_len((void *)cb->args[1]);
7011 }
7012
00918d33
JB		 7013 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7014 if (!rdev) {
5fe231e8
JB		 7015 err = -ENOENT;
7016 goto out_err;
71063f0e 7017 }
71063f0e 7018
00918d33 7019 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7020 err = -EOPNOTSUPP;
7021 goto out_err;
7022 }
7023
7024 while (1) {
15e47304 7025 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7026 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7027 NL80211_CMD_TESTMODE);
7028 struct nlattr *tmdata;
7029
cb35fba3
DC		 7030 if (!hdr)
7031 break;
7032
9360ffd1 7033 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7034 genlmsg_cancel(skb, hdr);
7035 break;
7036 }
7037
7038 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7039 if (!tmdata) {
7040 genlmsg_cancel(skb, hdr);
7041 break;
7042 }
e35e4d28 7043 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7044 nla_nest_end(skb, tmdata);
7045
7046 if (err == -ENOBUFS || err == -ENOENT) {
7047 genlmsg_cancel(skb, hdr);
7048 break;
7049 } else if (err) {
7050 genlmsg_cancel(skb, hdr);
7051 goto out_err;
7052 }
7053
7054 genlmsg_end(skb, hdr);
7055 }
7056
7057 err = skb->len;
7058 /* see above */
7059 cb->args[0] = phy_idx + 1;
7060 out_err:
5fe231e8 7061 rtnl_unlock();
71063f0e
WYG		 7062 return err;
7063}
aff89a9b
JB		 7064#endif
7065
b23aa676
SO		 7066static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7067{
4c476991
JB		 7068 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7069 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7070 struct cfg80211_connect_params connect;
7071 struct wiphy *wiphy;
fffd0934 7072 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7073 int err;
7074
7075 memset(&connect, 0, sizeof(connect));
7076
7077 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7078 return -EINVAL;
7079
7080 if (!info->attrs[NL80211_ATTR_SSID] ||
7081 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7082 return -EINVAL;
7083
7084 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7085 connect.auth_type =
7086 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7087 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7088 NL80211_CMD_CONNECT))
b23aa676
SO		 7089 return -EINVAL;
7090 } else
7091 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7092
7093 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7094
c0692b8f 7095 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7096 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7097 if (err)
7098 return err;
b23aa676 7099
074ac8df 7100 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7101 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7102 return -EOPNOTSUPP;
b23aa676 7103
79c97e97 7104 wiphy = &rdev->wiphy;
b23aa676 7105
4486ea98
BS		 7106 connect.bg_scan_period = -1;
7107 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7108 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7109 connect.bg_scan_period =
7110 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7111 }
7112
b23aa676
SO		 7113 if (info->attrs[NL80211_ATTR_MAC])
7114 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7115 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7116 connect.bssid_hint =
7117 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7118 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7119 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7120
7121 if (info->attrs[NL80211_ATTR_IE]) {
7122 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7123 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7124 }
7125
cee00a95
JM		 7126 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7127 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7128 if (connect.mfp != NL80211_MFP_REQUIRED &&
7129 connect.mfp != NL80211_MFP_NO)
7130 return -EINVAL;
7131 } else {
7132 connect.mfp = NL80211_MFP_NO;
7133 }
7134
b23aa676 7135 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7136 connect.channel = nl80211_get_valid_chan(
7137 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7138 if (!connect.channel)
1df4a510
JM		 7139 return -EINVAL;
7140 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7141 connect.channel_hint = nl80211_get_valid_chan(
7142 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7143 if (!connect.channel_hint)
4c476991 7144 return -EINVAL;
b23aa676
SO		 7145 }
7146
fffd0934
JB		 7147 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7148 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7149 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7150 if (IS_ERR(connkeys))
7151 return PTR_ERR(connkeys);
fffd0934
JB		 7152 }
7153
7e7c8926
BG		 7154 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7155 connect.flags |= ASSOC_REQ_DISABLE_HT;
7156
7157 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7158 memcpy(&connect.ht_capa_mask,
7159 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7160 sizeof(connect.ht_capa_mask));
7161
7162 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7163 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7164 kfree(connkeys);
7e7c8926 7165 return -EINVAL;
b4e4f47e 7166 }
7e7c8926
BG		 7167 memcpy(&connect.ht_capa,
7168 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7169 sizeof(connect.ht_capa));
7170 }
7171
ee2aca34
JB		 7172 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7173 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7174
7175 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7176 memcpy(&connect.vht_capa_mask,
7177 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7178 sizeof(connect.vht_capa_mask));
7179
7180 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7181 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7182 kfree(connkeys);
7183 return -EINVAL;
7184 }
7185 memcpy(&connect.vht_capa,
7186 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7187 sizeof(connect.vht_capa));
7188 }
7189
83739b03
JB		 7190 wdev_lock(dev->ieee80211_ptr);
7191 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7192 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7193 if (err)
7194 kfree(connkeys);
b23aa676
SO		 7195 return err;
7196}
7197
7198static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7199{
4c476991
JB		 7200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7201 struct net_device *dev = info->user_ptr[1];
b23aa676 7202 u16 reason;
83739b03 7203 int ret;
b23aa676
SO		 7204
7205 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7206 reason = WLAN_REASON_DEAUTH_LEAVING;
7207 else
7208 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7209
7210 if (reason == 0)
7211 return -EINVAL;
7212
074ac8df 7213 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7214 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7215 return -EOPNOTSUPP;
b23aa676 7216
83739b03
JB		 7217 wdev_lock(dev->ieee80211_ptr);
7218 ret = cfg80211_disconnect(rdev, dev, reason, true);
7219 wdev_unlock(dev->ieee80211_ptr);
7220 return ret;
b23aa676
SO		 7221}
7222
463d0183
JB		 7223static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7224{
4c476991 7225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7226 struct net *net;
7227 int err;
7228 u32 pid;
7229
7230 if (!info->attrs[NL80211_ATTR_PID])
7231 return -EINVAL;
7232
7233 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7234
463d0183 7235 net = get_net_ns_by_pid(pid);
4c476991
JB		 7236 if (IS_ERR(net))
7237 return PTR_ERR(net);
463d0183
JB		 7238
7239 err = 0;
7240
7241 /* check if anything to do */
4c476991
JB		 7242 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7243 err = cfg80211_switch_netns(rdev, net);
463d0183 7244
463d0183 7245 put_net(net);
463d0183
JB		 7246 return err;
7247}
7248
67fbb16b
SO		 7249static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7250{
4c476991 7251 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7252 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7253 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7254 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7255 struct cfg80211_pmksa pmksa;
7256
7257 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7258
7259 if (!info->attrs[NL80211_ATTR_MAC])
7260 return -EINVAL;
7261
7262 if (!info->attrs[NL80211_ATTR_PMKID])
7263 return -EINVAL;
7264
67fbb16b
SO		 7265 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7266 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7267
074ac8df 7268 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7269 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7270 return -EOPNOTSUPP;
67fbb16b
SO		 7271
7272 switch (info->genlhdr->cmd) {
7273 case NL80211_CMD_SET_PMKSA:
7274 rdev_ops = rdev->ops->set_pmksa;
7275 break;
7276 case NL80211_CMD_DEL_PMKSA:
7277 rdev_ops = rdev->ops->del_pmksa;
7278 break;
7279 default:
7280 WARN_ON(1);
7281 break;
7282 }
7283
4c476991
JB		 7284 if (!rdev_ops)
7285 return -EOPNOTSUPP;
67fbb16b 7286
4c476991 7287 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7288}
7289
7290static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7291{
4c476991
JB		 7292 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7293 struct net_device *dev = info->user_ptr[1];
67fbb16b 7294
074ac8df 7295 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7296 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7297 return -EOPNOTSUPP;
67fbb16b 7298
4c476991
JB		 7299 if (!rdev->ops->flush_pmksa)
7300 return -EOPNOTSUPP;
67fbb16b 7301
e35e4d28 7302 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7303}
7304
109086ce
AN		 7305static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7306{
7307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7308 struct net_device *dev = info->user_ptr[1];
7309 u8 action_code, dialog_token;
df942e7b 7310 u32 peer_capability = 0;
109086ce
AN		 7311 u16 status_code;
7312 u8 *peer;
7313
7314 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7315 !rdev->ops->tdls_mgmt)
7316 return -EOPNOTSUPP;
7317
7318 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7319 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7320 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7321 !info->attrs[NL80211_ATTR_IE] ||
7322 !info->attrs[NL80211_ATTR_MAC])
7323 return -EINVAL;
7324
7325 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7326 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7327 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7328 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
df942e7b
SDU		 7329 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7330 peer_capability =
7331 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7332
e35e4d28 7333 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7334 dialog_token, status_code, peer_capability,
e35e4d28
HG		 7335 nla_data(info->attrs[NL80211_ATTR_IE]),
7336 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7337}
7338
7339static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7340{
7341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7342 struct net_device *dev = info->user_ptr[1];
7343 enum nl80211_tdls_operation operation;
7344 u8 *peer;
7345
7346 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7347 !rdev->ops->tdls_oper)
7348 return -EOPNOTSUPP;
7349
7350 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7351 !info->attrs[NL80211_ATTR_MAC])
7352 return -EINVAL;
7353
7354 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7355 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7356
e35e4d28 7357 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7358}
7359
9588bbd5
JM		 7360static int nl80211_remain_on_channel(struct sk_buff *skb,
7361 struct genl_info *info)
7362{
4c476991 7363 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7364 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7365 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7366 struct sk_buff *msg;
7367 void *hdr;
7368 u64 cookie;
683b6d3b 7369 u32 duration;
9588bbd5
JM		 7370 int err;
7371
7372 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7373 !info->attrs[NL80211_ATTR_DURATION])
7374 return -EINVAL;
7375
7376 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7377
ebf348fc
JB		 7378 if (!rdev->ops->remain_on_channel ||
7379 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7380 return -EOPNOTSUPP;
7381
9588bbd5 7382 /*
ebf348fc
JB		 7383 * We should be on that channel for at least a minimum amount of
7384 * time (10ms) but no longer than the driver supports.
9588bbd5 7385 */
ebf348fc 7386 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7387 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7388 return -EINVAL;
7389
683b6d3b
JB		 7390 err = nl80211_parse_chandef(rdev, info, &chandef);
7391 if (err)
7392 return err;
9588bbd5
JM		 7393
7394 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7395 if (!msg)
7396 return -ENOMEM;
9588bbd5 7397
15e47304 7398 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7399 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7400 if (!hdr) {
7401 err = -ENOBUFS;
9588bbd5
JM		 7402 goto free_msg;
7403 }
7404
683b6d3b
JB		 7405 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7406 duration, &cookie);
9588bbd5
JM		 7407
7408 if (err)
7409 goto free_msg;
7410
9360ffd1
DM		 7411 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7412 goto nla_put_failure;
9588bbd5
JM		 7413
7414 genlmsg_end(msg, hdr);
4c476991
JB		 7415
7416 return genlmsg_reply(msg, info);
9588bbd5
JM		 7417
7418 nla_put_failure:
7419 err = -ENOBUFS;
7420 free_msg:
7421 nlmsg_free(msg);
9588bbd5
JM		 7422 return err;
7423}
7424
7425static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7426 struct genl_info *info)
7427{
4c476991 7428 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7429 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7430 u64 cookie;
9588bbd5
JM		 7431
7432 if (!info->attrs[NL80211_ATTR_COOKIE])
7433 return -EINVAL;
7434
4c476991
JB		 7435 if (!rdev->ops->cancel_remain_on_channel)
7436 return -EOPNOTSUPP;
9588bbd5 7437
9588bbd5
JM		 7438 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7439
e35e4d28 7440 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7441}
7442
13ae75b1
JM		 7443static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7444 u8 *rates, u8 rates_len)
7445{
7446 u8 i;
7447 u32 mask = 0;
7448
7449 for (i = 0; i < rates_len; i++) {
7450 int rate = (rates[i] & 0x7f) * 5;
7451 int ridx;
7452 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7453 struct ieee80211_rate *srate =
7454 &sband->bitrates[ridx];
7455 if (rate == srate->bitrate) {
7456 mask |= 1 << ridx;
7457 break;
7458 }
7459 }
7460 if (ridx == sband->n_bitrates)
7461 return 0; /* rate not found */
7462 }
7463
7464 return mask;
7465}
7466
24db78c0
SW		 7467static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7468 u8 *rates, u8 rates_len,
7469 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7470{
7471 u8 i;
7472
7473 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7474
7475 for (i = 0; i < rates_len; i++) {
7476 int ridx, rbit;
7477
7478 ridx = rates[i] / 8;
7479 rbit = BIT(rates[i] % 8);
7480
7481 /* check validity */
910570b5 7482 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7483 return false;
7484
7485 /* check availability */
7486 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7487 mcs[ridx] |= rbit;
7488 else
7489 return false;
7490 }
7491
7492 return true;
7493}
7494
204e35a9
JD		 7495static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7496{
7497 u16 mcs_mask = 0;
7498
7499 switch (vht_mcs_map) {
7500 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7501 break;
7502 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7503 mcs_mask = 0x00FF;
7504 break;
7505 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7506 mcs_mask = 0x01FF;
7507 break;
7508 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7509 mcs_mask = 0x03FF;
7510 break;
7511 default:
7512 break;
7513 }
7514
7515 return mcs_mask;
7516}
7517
7518static void vht_build_mcs_mask(u16 vht_mcs_map,
7519 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7520{
7521 u8 nss;
7522
7523 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7524 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7525 vht_mcs_map >>= 2;
7526 }
7527}
7528
7529static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7530 struct nl80211_txrate_vht *txrate,
7531 u16 mcs[NL80211_VHT_NSS_MAX])
7532{
7533 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7534 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7535 u8 i;
7536
7537 if (!sband->vht_cap.vht_supported)
7538 return false;
7539
7540 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7541
7542 /* Build vht_mcs_mask from VHT capabilities */
7543 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7544
7545 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7546 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7547 mcs[i] = txrate->mcs[i];
7548 else
7549 return false;
7550 }
7551
7552 return true;
7553}
7554
b54452b0 7555static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7556 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7557 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7558 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7559 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7560 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7561 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7562};
7563
7564static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7565 struct genl_info *info)
7566{
7567 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7569 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7570 int rem, i;
7571 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7572 struct nlattr *tx_rates;
7573 struct ieee80211_supported_band *sband;
204e35a9 7574 u16 vht_tx_mcs_map;
13ae75b1 7575
4c476991
JB		 7576 if (!rdev->ops->set_bitrate_mask)
7577 return -EOPNOTSUPP;
13ae75b1
JM		 7578
7579 memset(&mask, 0, sizeof(mask));
7580 /* Default to all rates enabled */
7581 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7582 sband = rdev->wiphy.bands[i];
7869303b
JD		 7583
7584 if (!sband)
7585 continue;
7586
7587 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7588 memcpy(mask.control[i].ht_mcs,
7869303b 7589 sband->ht_cap.mcs.rx_mask,
d1e33e65 7590 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7591
7592 if (!sband->vht_cap.vht_supported)
7593 continue;
7594
7595 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7596 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7597 }
7598
b9243ab0
JD		 7599 /* if no rates are given set it back to the defaults */
7600 if (!info->attrs[NL80211_ATTR_TX_RATES])
7601 goto out;
7602
13ae75b1
JM		 7603 /*
7604 * The nested attribute uses enum nl80211_band as the index. This maps
7605 * directly to the enum ieee80211_band values used in cfg80211.
7606 */
24db78c0 7607 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7608 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7609 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7610 int err;
7611
4c476991
JB		 7612 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7613 return -EINVAL;
13ae75b1 7614 sband = rdev->wiphy.bands[band];
4c476991
JB		 7615 if (sband == NULL)
7616 return -EINVAL;
ae811e21
JB		 7617 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7618 nla_len(tx_rates), nl80211_txattr_policy);
7619 if (err)
7620 return err;
13ae75b1
JM		 7621 if (tb[NL80211_TXRATE_LEGACY]) {
7622 mask.control[band].legacy = rateset_to_mask(
7623 sband,
7624 nla_data(tb[NL80211_TXRATE_LEGACY]),
7625 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7626 if ((mask.control[band].legacy == 0) &&
7627 nla_len(tb[NL80211_TXRATE_LEGACY]))
7628 return -EINVAL;
24db78c0 7629 }
d1e33e65 7630 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7631 if (!ht_rateset_to_mask(
7632 sband,
d1e33e65
JD		 7633 nla_data(tb[NL80211_TXRATE_HT]),
7634 nla_len(tb[NL80211_TXRATE_HT]),
7635 mask.control[band].ht_mcs))
24db78c0
SW		 7636 return -EINVAL;
7637 }
204e35a9
JD		 7638 if (tb[NL80211_TXRATE_VHT]) {
7639 if (!vht_set_mcs_mask(
7640 sband,
7641 nla_data(tb[NL80211_TXRATE_VHT]),
7642 mask.control[band].vht_mcs))
7643 return -EINVAL;
7644 }
0b9323f6
JD		 7645 if (tb[NL80211_TXRATE_GI]) {
7646 mask.control[band].gi =
7647 nla_get_u8(tb[NL80211_TXRATE_GI]);
7648 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7649 return -EINVAL;
7650 }
24db78c0
SW		 7651
7652 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7653 /* don't allow empty legacy rates if HT or VHT
7654 * are not even supported.
7655 */
7656 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7657 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7658 return -EINVAL;
7659
7660 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7661 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7662 goto out;
7663
7664 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7665 if (mask.control[band].vht_mcs[i])
7666 goto out;
24db78c0
SW		 7667
7668 /* legacy and mcs rates may not be both empty */
204e35a9 7669 return -EINVAL;
13ae75b1
JM		 7670 }
7671 }
7672
b9243ab0 7673out:
e35e4d28 7674 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7675}
7676
2e161f78 7677static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7678{
4c476991 7679 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7680 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7681 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7682
7683 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7684 return -EINVAL;
7685
2e161f78
JB		 7686 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7687 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7688
71bbc994
JB		 7689 switch (wdev->iftype) {
7690 case NL80211_IFTYPE_STATION:
7691 case NL80211_IFTYPE_ADHOC:
7692 case NL80211_IFTYPE_P2P_CLIENT:
7693 case NL80211_IFTYPE_AP:
7694 case NL80211_IFTYPE_AP_VLAN:
7695 case NL80211_IFTYPE_MESH_POINT:
7696 case NL80211_IFTYPE_P2P_GO:
98104fde 7697 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7698 break;
7699 default:
4c476991 7700 return -EOPNOTSUPP;
71bbc994 7701 }
026331c4
JM		 7702
7703 /* not much point in registering if we can't reply */
4c476991
JB		 7704 if (!rdev->ops->mgmt_tx)
7705 return -EOPNOTSUPP;
026331c4 7706
15e47304 7707 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7708 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7709 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7710}
7711
2e161f78 7712static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7713{
4c476991 7714 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7715 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7716 struct cfg80211_chan_def chandef;
026331c4 7717 int err;
d64d373f 7718 void *hdr = NULL;
026331c4 7719 u64 cookie;
e247bd90 7720 struct sk_buff *msg = NULL;
b176e629
AO		 7721 struct cfg80211_mgmt_tx_params params = {
7722 .dont_wait_for_ack =
7723 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7724 };
026331c4 7725
683b6d3b 7726 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7727 return -EINVAL;
7728
4c476991
JB		 7729 if (!rdev->ops->mgmt_tx)
7730 return -EOPNOTSUPP;
026331c4 7731
71bbc994 7732 switch (wdev->iftype) {
ea141b75
AQ		 7733 case NL80211_IFTYPE_P2P_DEVICE:
7734 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7735 return -EINVAL;
71bbc994
JB		 7736 case NL80211_IFTYPE_STATION:
7737 case NL80211_IFTYPE_ADHOC:
7738 case NL80211_IFTYPE_P2P_CLIENT:
7739 case NL80211_IFTYPE_AP:
7740 case NL80211_IFTYPE_AP_VLAN:
7741 case NL80211_IFTYPE_MESH_POINT:
7742 case NL80211_IFTYPE_P2P_GO:
7743 break;
7744 default:
4c476991 7745 return -EOPNOTSUPP;
71bbc994 7746 }
026331c4 7747
f7ca38df 7748 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7749 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7750 return -EINVAL;
b176e629 7751 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7752
7753 /*
7754 * We should wait on the channel for at least a minimum amount
7755 * of time (10ms) but no longer than the driver supports.
7756 */
b176e629
AO		 7757 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7758 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7759 return -EINVAL;
7760
f7ca38df
JB		 7761 }
7762
b176e629 7763 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7764
b176e629 7765 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7766 return -EINVAL;
7767
b176e629 7768 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7769
ea141b75
AQ		 7770 /* get the channel if any has been specified, otherwise pass NULL to
7771 * the driver. The latter will use the current one
7772 */
7773 chandef.chan = NULL;
7774 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7775 err = nl80211_parse_chandef(rdev, info, &chandef);
7776 if (err)
7777 return err;
7778 }
7779
b176e629 7780 if (!chandef.chan && params.offchan)
ea141b75 7781 return -EINVAL;
026331c4 7782
b176e629 7783 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7784 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7785 if (!msg)
7786 return -ENOMEM;
026331c4 7787
15e47304 7788 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7789 NL80211_CMD_FRAME);
cb35fba3
DC		 7790 if (!hdr) {
7791 err = -ENOBUFS;
e247bd90
JB		 7792 goto free_msg;
7793 }
026331c4 7794 }
e247bd90 7795
b176e629
AO		 7796 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7797 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7798 params.chan = chandef.chan;
7799 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7800 if (err)
7801 goto free_msg;
7802
e247bd90 7803 if (msg) {
9360ffd1
DM		 7804 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7805 goto nla_put_failure;
026331c4 7806
e247bd90
JB		 7807 genlmsg_end(msg, hdr);
7808 return genlmsg_reply(msg, info);
7809 }
7810
7811 return 0;
026331c4
JM		 7812
7813 nla_put_failure:
7814 err = -ENOBUFS;
7815 free_msg:
7816 nlmsg_free(msg);
026331c4
JM		 7817 return err;
7818}
7819
f7ca38df
JB		 7820static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7821{
7822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7823 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7824 u64 cookie;
7825
7826 if (!info->attrs[NL80211_ATTR_COOKIE])
7827 return -EINVAL;
7828
7829 if (!rdev->ops->mgmt_tx_cancel_wait)
7830 return -EOPNOTSUPP;
7831
71bbc994
JB		 7832 switch (wdev->iftype) {
7833 case NL80211_IFTYPE_STATION:
7834 case NL80211_IFTYPE_ADHOC:
7835 case NL80211_IFTYPE_P2P_CLIENT:
7836 case NL80211_IFTYPE_AP:
7837 case NL80211_IFTYPE_AP_VLAN:
7838 case NL80211_IFTYPE_P2P_GO:
98104fde 7839 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7840 break;
7841 default:
f7ca38df 7842 return -EOPNOTSUPP;
71bbc994 7843 }
f7ca38df
JB		 7844
7845 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7846
e35e4d28 7847 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7848}
7849
ffb9eb3d
KV		 7850static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7851{
4c476991 7852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7853 struct wireless_dev *wdev;
4c476991 7854 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7855 u8 ps_state;
7856 bool state;
7857 int err;
7858
4c476991
JB		 7859 if (!info->attrs[NL80211_ATTR_PS_STATE])
7860 return -EINVAL;
ffb9eb3d
KV		 7861
7862 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7863
4c476991
JB		 7864 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7865 return -EINVAL;
ffb9eb3d
KV		 7866
7867 wdev = dev->ieee80211_ptr;
7868
4c476991
JB		 7869 if (!rdev->ops->set_power_mgmt)
7870 return -EOPNOTSUPP;
ffb9eb3d
KV		 7871
7872 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7873
7874 if (state == wdev->ps)
4c476991 7875 return 0;
ffb9eb3d 7876
e35e4d28 7877 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7878 if (!err)
7879 wdev->ps = state;
ffb9eb3d
KV		 7880 return err;
7881}
7882
7883static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7884{
4c476991 7885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7886 enum nl80211_ps_state ps_state;
7887 struct wireless_dev *wdev;
4c476991 7888 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7889 struct sk_buff *msg;
7890 void *hdr;
7891 int err;
7892
ffb9eb3d
KV		 7893 wdev = dev->ieee80211_ptr;
7894
4c476991
JB		 7895 if (!rdev->ops->set_power_mgmt)
7896 return -EOPNOTSUPP;
ffb9eb3d
KV		 7897
7898 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7899 if (!msg)
7900 return -ENOMEM;
ffb9eb3d 7901
15e47304 7902 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7903 NL80211_CMD_GET_POWER_SAVE);
7904 if (!hdr) {
4c476991 7905 err = -ENOBUFS;
ffb9eb3d
KV		 7906 goto free_msg;
7907 }
7908
7909 if (wdev->ps)
7910 ps_state = NL80211_PS_ENABLED;
7911 else
7912 ps_state = NL80211_PS_DISABLED;
7913
9360ffd1
DM		 7914 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7915 goto nla_put_failure;
ffb9eb3d
KV		 7916
7917 genlmsg_end(msg, hdr);
4c476991 7918 return genlmsg_reply(msg, info);
ffb9eb3d 7919
4c476991 7920 nla_put_failure:
ffb9eb3d 7921 err = -ENOBUFS;
4c476991 7922 free_msg:
ffb9eb3d 7923 nlmsg_free(msg);
ffb9eb3d
KV		 7924 return err;
7925}
7926
94e860f1
JB		 7927static const struct nla_policy
7928nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 7929 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7930 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7931 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7932 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7933 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7934 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7935};
7936
84f10708 7937static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7938 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7939{
7940 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 7941 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7942 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 7943
d9d8b019 7944 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7945 return -EINVAL;
7946
84f10708
TP		 7947 if (!rdev->ops->set_cqm_txe_config)
7948 return -EOPNOTSUPP;
7949
7950 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7951 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7952 return -EOPNOTSUPP;
7953
e35e4d28 7954 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7955}
7956
d6dc1a38
JO		 7957static int nl80211_set_cqm_rssi(struct genl_info *info,
7958 s32 threshold, u32 hysteresis)
7959{
4c476991 7960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 7961 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7962 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 7963
7964 if (threshold > 0)
7965 return -EINVAL;
7966
1da5fcc8
JB		 7967 /* disabling - hysteresis should also be zero then */
7968 if (threshold == 0)
7969 hysteresis = 0;
d6dc1a38 7970
4c476991
JB		 7971 if (!rdev->ops->set_cqm_rssi_config)
7972 return -EOPNOTSUPP;
d6dc1a38 7973
074ac8df 7974 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7975 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7976 return -EOPNOTSUPP;
d6dc1a38 7977
e35e4d28 7978 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7979}
7980
7981static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7982{
7983 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7984 struct nlattr *cqm;
7985 int err;
7986
7987 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 7988 if (!cqm)
7989 return -EINVAL;
d6dc1a38
JO		 7990
7991 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7992 nl80211_attr_cqm_policy);
7993 if (err)
1da5fcc8 7994 return err;
d6dc1a38
JO		 7995
7996 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7997 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 7998 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7999 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8000
1da5fcc8
JB		 8001 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8002 }
8003
8004 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8005 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8006 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8007 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8008 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8009 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8010
8011 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8012 }
8013
8014 return -EINVAL;
d6dc1a38
JO		 8015}
8016
29cbe68c
JB		 8017static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8018{
8019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8020 struct net_device *dev = info->user_ptr[1];
8021 struct mesh_config cfg;
c80d545d 8022 struct mesh_setup setup;
29cbe68c
JB		 8023 int err;
8024
8025 /* start with default */
8026 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8027 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8028
24bdd9f4 8029 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8030 /* and parse parameters if given */
24bdd9f4 8031 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8032 if (err)
8033 return err;
8034 }
8035
8036 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8037 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8038 return -EINVAL;
8039
c80d545d
JC		 8040 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8041 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8042
4bb62344
CYY		 8043 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8044 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8045 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8046 return -EINVAL;
8047
9bdbf04d
MP		 8048 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8049 setup.beacon_interval =
8050 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8051 if (setup.beacon_interval < 10 ||
8052 setup.beacon_interval > 10000)
8053 return -EINVAL;
8054 }
8055
8056 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8057 setup.dtim_period =
8058 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8059 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8060 return -EINVAL;
8061 }
8062
c80d545d
JC		 8063 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8064 /* parse additional setup parameters if given */
8065 err = nl80211_parse_mesh_setup(info, &setup);
8066 if (err)
8067 return err;
8068 }
8069
d37bb18a
TP		 8070 if (setup.user_mpm)
8071 cfg.auto_open_plinks = false;
8072
cc1d2806 8073 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8074 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8075 if (err)
8076 return err;
cc1d2806
JB		 8077 } else {
8078 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8079 setup.chandef.chan = NULL;
cc1d2806
JB		 8080 }
8081
ffb3cf30
AN		 8082 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8083 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8084 int n_rates =
8085 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8086 struct ieee80211_supported_band *sband;
8087
8088 if (!setup.chandef.chan)
8089 return -EINVAL;
8090
8091 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8092
8093 err = ieee80211_get_ratemask(sband, rates, n_rates,
8094 &setup.basic_rates);
8095 if (err)
8096 return err;
8097 }
8098
c80d545d 8099 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8100}
8101
8102static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8103{
8104 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8105 struct net_device *dev = info->user_ptr[1];
8106
8107 return cfg80211_leave_mesh(rdev, dev);
8108}
8109
dfb89c56 8110#ifdef CONFIG_PM
bb92d199
AK		 8111static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8112 struct cfg80211_registered_device *rdev)
8113{
6abb9cb9 8114 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8115 struct nlattr *nl_pats, *nl_pat;
8116 int i, pat_len;
8117
6abb9cb9 8118 if (!wowlan->n_patterns)
bb92d199
AK		 8119 return 0;
8120
8121 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8122 if (!nl_pats)
8123 return -ENOBUFS;
8124
6abb9cb9 8125 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8126 nl_pat = nla_nest_start(msg, i + 1);
8127 if (!nl_pat)
8128 return -ENOBUFS;
6abb9cb9 8129 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8130 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8131 wowlan->patterns[i].mask) ||
50ac6607
AK		 8132 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8133 wowlan->patterns[i].pattern) ||
8134 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8135 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8136 return -ENOBUFS;
8137 nla_nest_end(msg, nl_pat);
8138 }
8139 nla_nest_end(msg, nl_pats);
8140
8141 return 0;
8142}
8143
2a0e047e
JB		 8144static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8145 struct cfg80211_wowlan_tcp *tcp)
8146{
8147 struct nlattr *nl_tcp;
8148
8149 if (!tcp)
8150 return 0;
8151
8152 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8153 if (!nl_tcp)
8154 return -ENOBUFS;
8155
8156 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8157 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8158 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8159 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8160 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8161 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8162 tcp->payload_len, tcp->payload) ||
8163 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8164 tcp->data_interval) ||
8165 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8166 tcp->wake_len, tcp->wake_data) ||
8167 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8168 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8169 return -ENOBUFS;
8170
8171 if (tcp->payload_seq.len &&
8172 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8173 sizeof(tcp->payload_seq), &tcp->payload_seq))
8174 return -ENOBUFS;
8175
8176 if (tcp->payload_tok.len &&
8177 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8178 sizeof(tcp->payload_tok) + tcp->tokens_size,
8179 &tcp->payload_tok))
8180 return -ENOBUFS;
8181
e248ad30
JB		 8182 nla_nest_end(msg, nl_tcp);
8183
2a0e047e
JB		 8184 return 0;
8185}
8186
ff1b6e69
JB		 8187static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8188{
8189 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8190 struct sk_buff *msg;
8191 void *hdr;
2a0e047e 8192 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8193
964dc9e2 8194 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8195 return -EOPNOTSUPP;
8196
6abb9cb9 8197 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8198 /* adjust size to have room for all the data */
6abb9cb9
JB		 8199 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8200 rdev->wiphy.wowlan_config->tcp->payload_len +
8201 rdev->wiphy.wowlan_config->tcp->wake_len +
8202 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8203 }
8204
8205 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8206 if (!msg)
8207 return -ENOMEM;
8208
15e47304 8209 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8210 NL80211_CMD_GET_WOWLAN);
8211 if (!hdr)
8212 goto nla_put_failure;
8213
6abb9cb9 8214 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8215 struct nlattr *nl_wowlan;
8216
8217 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8218 if (!nl_wowlan)
8219 goto nla_put_failure;
8220
6abb9cb9 8221 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8222 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8223 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8224 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8225 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8226 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8227 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8228 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8229 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8230 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8231 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8232 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8233 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8234 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8235 goto nla_put_failure;
2a0e047e 8236
bb92d199
AK		 8237 if (nl80211_send_wowlan_patterns(msg, rdev))
8238 goto nla_put_failure;
2a0e047e 8239
6abb9cb9
JB		 8240 if (nl80211_send_wowlan_tcp(msg,
8241 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8242 goto nla_put_failure;
8243
ff1b6e69
JB		 8244 nla_nest_end(msg, nl_wowlan);
8245 }
8246
8247 genlmsg_end(msg, hdr);
8248 return genlmsg_reply(msg, info);
8249
8250nla_put_failure:
8251 nlmsg_free(msg);
8252 return -ENOBUFS;
8253}
8254
2a0e047e
JB		 8255static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8256 struct nlattr *attr,
8257 struct cfg80211_wowlan *trig)
8258{
8259 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8260 struct cfg80211_wowlan_tcp *cfg;
8261 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8262 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8263 u32 size;
8264 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8265 int err, port;
8266
964dc9e2 8267 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8268 return -EINVAL;
8269
8270 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8271 nla_data(attr), nla_len(attr),
8272 nl80211_wowlan_tcp_policy);
8273 if (err)
8274 return err;
8275
8276 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8277 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8278 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8279 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8280 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8281 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8282 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8283 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8284 return -EINVAL;
8285
8286 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8287 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8288 return -EINVAL;
8289
8290 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8291 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8292 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8293 return -EINVAL;
8294
8295 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8296 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8297 return -EINVAL;
8298
8299 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8300 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8301 return -EINVAL;
8302
8303 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8304 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8305
8306 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8307 tokens_size = tokln - sizeof(*tok);
8308
8309 if (!tok->len || tokens_size % tok->len)
8310 return -EINVAL;
964dc9e2 8311 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8312 return -EINVAL;
964dc9e2 8313 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8314 return -EINVAL;
964dc9e2 8315 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8316 return -EINVAL;
964dc9e2 8317 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8318 return -EINVAL;
8319 if (tok->offset + tok->len > data_size)
8320 return -EINVAL;
8321 }
8322
8323 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8324 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8325 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8326 return -EINVAL;
8327 if (seq->len == 0 || seq->len > 4)
8328 return -EINVAL;
8329 if (seq->len + seq->offset > data_size)
8330 return -EINVAL;
8331 }
8332
8333 size = sizeof(*cfg);
8334 size += data_size;
8335 size += wake_size + wake_mask_size;
8336 size += tokens_size;
8337
8338 cfg = kzalloc(size, GFP_KERNEL);
8339 if (!cfg)
8340 return -ENOMEM;
8341 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8342 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8343 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8344 ETH_ALEN);
8345 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8346 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8347 else
8348 port = 0;
8349#ifdef CONFIG_INET
8350 /* allocate a socket and port for it and use it */
8351 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8352 IPPROTO_TCP, &cfg->sock, 1);
8353 if (err) {
8354 kfree(cfg);
8355 return err;
8356 }
8357 if (inet_csk_get_port(cfg->sock->sk, port)) {
8358 sock_release(cfg->sock);
8359 kfree(cfg);
8360 return -EADDRINUSE;
8361 }
8362 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8363#else
8364 if (!port) {
8365 kfree(cfg);
8366 return -EINVAL;
8367 }
8368 cfg->src_port = port;
8369#endif
8370
8371 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8372 cfg->payload_len = data_size;
8373 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8374 memcpy((void *)cfg->payload,
8375 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8376 data_size);
8377 if (seq)
8378 cfg->payload_seq = *seq;
8379 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8380 cfg->wake_len = wake_size;
8381 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8382 memcpy((void *)cfg->wake_data,
8383 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8384 wake_size);
8385 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8386 data_size + wake_size;
8387 memcpy((void *)cfg->wake_mask,
8388 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8389 wake_mask_size);
8390 if (tok) {
8391 cfg->tokens_size = tokens_size;
8392 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8393 }
8394
8395 trig->tcp = cfg;
8396
8397 return 0;
8398}
8399
ff1b6e69
JB		 8400static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8401{
8402 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8403 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8404 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8405 struct cfg80211_wowlan *ntrig;
964dc9e2 8406 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8407 int err, i;
6abb9cb9 8408 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8409
964dc9e2 8410 if (!wowlan)
ff1b6e69
JB		 8411 return -EOPNOTSUPP;
8412
ae33bd81
JB		 8413 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8414 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8415 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8416 goto set_wakeup;
8417 }
ff1b6e69
JB		 8418
8419 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8420 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8421 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8422 nl80211_wowlan_policy);
8423 if (err)
8424 return err;
8425
8426 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8427 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8428 return -EINVAL;
8429 new_triggers.any = true;
8430 }
8431
8432 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8433 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8434 return -EINVAL;
8435 new_triggers.disconnect = true;
8436 }
8437
8438 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8439 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8440 return -EINVAL;
8441 new_triggers.magic_pkt = true;
8442 }
8443
77dbbb13
JB		 8444 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8445 return -EINVAL;
8446
8447 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8448 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8449 return -EINVAL;
8450 new_triggers.gtk_rekey_failure = true;
8451 }
8452
8453 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8454 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8455 return -EINVAL;
8456 new_triggers.eap_identity_req = true;
8457 }
8458
8459 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8460 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8461 return -EINVAL;
8462 new_triggers.four_way_handshake = true;
8463 }
8464
8465 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8466 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8467 return -EINVAL;
8468 new_triggers.rfkill_release = true;
8469 }
8470
ff1b6e69
JB		 8471 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8472 struct nlattr *pat;
8473 int n_patterns = 0;
bb92d199 8474 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8475 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8476
8477 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8478 rem)
8479 n_patterns++;
8480 if (n_patterns > wowlan->n_patterns)
8481 return -EINVAL;
8482
8483 new_triggers.patterns = kcalloc(n_patterns,
8484 sizeof(new_triggers.patterns[0]),
8485 GFP_KERNEL);
8486 if (!new_triggers.patterns)
8487 return -ENOMEM;
8488
8489 new_triggers.n_patterns = n_patterns;
8490 i = 0;
8491
8492 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8493 rem) {
50ac6607
AK		 8494 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8495 nla_len(pat), NULL);
ff1b6e69 8496 err = -EINVAL;
50ac6607
AK		 8497 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8498 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8499 goto error;
50ac6607 8500 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8501 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8502 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8503 goto error;
8504 if (pat_len > wowlan->pattern_max_len ||
8505 pat_len < wowlan->pattern_min_len)
8506 goto error;
8507
50ac6607 8508 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8509 pkt_offset = 0;
8510 else
8511 pkt_offset = nla_get_u32(
50ac6607 8512 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8513 if (pkt_offset > wowlan->max_pkt_offset)
8514 goto error;
8515 new_triggers.patterns[i].pkt_offset = pkt_offset;
8516
ff1b6e69
JB		 8517 new_triggers.patterns[i].mask =
8518 kmalloc(mask_len + pat_len, GFP_KERNEL);
8519 if (!new_triggers.patterns[i].mask) {
8520 err = -ENOMEM;
8521 goto error;
8522 }
8523 new_triggers.patterns[i].pattern =
8524 new_triggers.patterns[i].mask + mask_len;
8525 memcpy(new_triggers.patterns[i].mask,
50ac6607 8526 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8527 mask_len);
8528 new_triggers.patterns[i].pattern_len = pat_len;
8529 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8530 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8531 pat_len);
8532 i++;
8533 }
8534 }
8535
2a0e047e
JB		 8536 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8537 err = nl80211_parse_wowlan_tcp(
8538 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8539 &new_triggers);
8540 if (err)
8541 goto error;
8542 }
8543
ae33bd81
JB		 8544 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8545 if (!ntrig) {
8546 err = -ENOMEM;
8547 goto error;
ff1b6e69 8548 }
ae33bd81 8549 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8550 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8551
ae33bd81 8552 set_wakeup:
6abb9cb9
JB		 8553 if (rdev->ops->set_wakeup &&
8554 prev_enabled != !!rdev->wiphy.wowlan_config)
8555 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8556
ff1b6e69
JB		 8557 return 0;
8558 error:
8559 for (i = 0; i < new_triggers.n_patterns; i++)
8560 kfree(new_triggers.patterns[i].mask);
8561 kfree(new_triggers.patterns);
2a0e047e
JB		 8562 if (new_triggers.tcp && new_triggers.tcp->sock)
8563 sock_release(new_triggers.tcp->sock);
8564 kfree(new_triggers.tcp);
ff1b6e69
JB		 8565 return err;
8566}
dfb89c56 8567#endif
ff1b6e69 8568
be29b99a
AK		 8569static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8570 struct cfg80211_registered_device *rdev)
8571{
8572 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8573 int i, j, pat_len;
8574 struct cfg80211_coalesce_rules *rule;
8575
8576 if (!rdev->coalesce->n_rules)
8577 return 0;
8578
8579 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8580 if (!nl_rules)
8581 return -ENOBUFS;
8582
8583 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8584 nl_rule = nla_nest_start(msg, i + 1);
8585 if (!nl_rule)
8586 return -ENOBUFS;
8587
8588 rule = &rdev->coalesce->rules[i];
8589 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8590 rule->delay))
8591 return -ENOBUFS;
8592
8593 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8594 rule->condition))
8595 return -ENOBUFS;
8596
8597 nl_pats = nla_nest_start(msg,
8598 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8599 if (!nl_pats)
8600 return -ENOBUFS;
8601
8602 for (j = 0; j < rule->n_patterns; j++) {
8603 nl_pat = nla_nest_start(msg, j + 1);
8604 if (!nl_pat)
8605 return -ENOBUFS;
8606 pat_len = rule->patterns[j].pattern_len;
8607 if (nla_put(msg, NL80211_PKTPAT_MASK,
8608 DIV_ROUND_UP(pat_len, 8),
8609 rule->patterns[j].mask) ||
8610 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8611 rule->patterns[j].pattern) ||
8612 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8613 rule->patterns[j].pkt_offset))
8614 return -ENOBUFS;
8615 nla_nest_end(msg, nl_pat);
8616 }
8617 nla_nest_end(msg, nl_pats);
8618 nla_nest_end(msg, nl_rule);
8619 }
8620 nla_nest_end(msg, nl_rules);
8621
8622 return 0;
8623}
8624
8625static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8626{
8627 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8628 struct sk_buff *msg;
8629 void *hdr;
8630
8631 if (!rdev->wiphy.coalesce)
8632 return -EOPNOTSUPP;
8633
8634 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8635 if (!msg)
8636 return -ENOMEM;
8637
8638 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8639 NL80211_CMD_GET_COALESCE);
8640 if (!hdr)
8641 goto nla_put_failure;
8642
8643 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8644 goto nla_put_failure;
8645
8646 genlmsg_end(msg, hdr);
8647 return genlmsg_reply(msg, info);
8648
8649nla_put_failure:
8650 nlmsg_free(msg);
8651 return -ENOBUFS;
8652}
8653
8654void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8655{
8656 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8657 int i, j;
8658 struct cfg80211_coalesce_rules *rule;
8659
8660 if (!coalesce)
8661 return;
8662
8663 for (i = 0; i < coalesce->n_rules; i++) {
8664 rule = &coalesce->rules[i];
8665 for (j = 0; j < rule->n_patterns; j++)
8666 kfree(rule->patterns[j].mask);
8667 kfree(rule->patterns);
8668 }
8669 kfree(coalesce->rules);
8670 kfree(coalesce);
8671 rdev->coalesce = NULL;
8672}
8673
8674static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8675 struct nlattr *rule,
8676 struct cfg80211_coalesce_rules *new_rule)
8677{
8678 int err, i;
8679 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8680 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8681 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8682 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8683
8684 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8685 nla_len(rule), nl80211_coalesce_policy);
8686 if (err)
8687 return err;
8688
8689 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8690 new_rule->delay =
8691 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8692 if (new_rule->delay > coalesce->max_delay)
8693 return -EINVAL;
8694
8695 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8696 new_rule->condition =
8697 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8698 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8699 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8700 return -EINVAL;
8701
8702 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8703 return -EINVAL;
8704
8705 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8706 rem)
8707 n_patterns++;
8708 if (n_patterns > coalesce->n_patterns)
8709 return -EINVAL;
8710
8711 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8712 GFP_KERNEL);
8713 if (!new_rule->patterns)
8714 return -ENOMEM;
8715
8716 new_rule->n_patterns = n_patterns;
8717 i = 0;
8718
8719 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8720 rem) {
8721 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8722 nla_len(pat), NULL);
8723 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8724 !pat_tb[NL80211_PKTPAT_PATTERN])
8725 return -EINVAL;
8726 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8727 mask_len = DIV_ROUND_UP(pat_len, 8);
8728 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8729 return -EINVAL;
8730 if (pat_len > coalesce->pattern_max_len ||
8731 pat_len < coalesce->pattern_min_len)
8732 return -EINVAL;
8733
8734 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8735 pkt_offset = 0;
8736 else
8737 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8738 if (pkt_offset > coalesce->max_pkt_offset)
8739 return -EINVAL;
8740 new_rule->patterns[i].pkt_offset = pkt_offset;
8741
8742 new_rule->patterns[i].mask =
8743 kmalloc(mask_len + pat_len, GFP_KERNEL);
8744 if (!new_rule->patterns[i].mask)
8745 return -ENOMEM;
8746 new_rule->patterns[i].pattern =
8747 new_rule->patterns[i].mask + mask_len;
8748 memcpy(new_rule->patterns[i].mask,
8749 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8750 new_rule->patterns[i].pattern_len = pat_len;
8751 memcpy(new_rule->patterns[i].pattern,
8752 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8753 i++;
8754 }
8755
8756 return 0;
8757}
8758
8759static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8760{
8761 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8762 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8763 struct cfg80211_coalesce new_coalesce = {};
8764 struct cfg80211_coalesce *n_coalesce;
8765 int err, rem_rule, n_rules = 0, i, j;
8766 struct nlattr *rule;
8767 struct cfg80211_coalesce_rules *tmp_rule;
8768
8769 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8770 return -EOPNOTSUPP;
8771
8772 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8773 cfg80211_rdev_free_coalesce(rdev);
8774 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8775 return 0;
8776 }
8777
8778 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8779 rem_rule)
8780 n_rules++;
8781 if (n_rules > coalesce->n_rules)
8782 return -EINVAL;
8783
8784 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8785 GFP_KERNEL);
8786 if (!new_coalesce.rules)
8787 return -ENOMEM;
8788
8789 new_coalesce.n_rules = n_rules;
8790 i = 0;
8791
8792 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8793 rem_rule) {
8794 err = nl80211_parse_coalesce_rule(rdev, rule,
8795 &new_coalesce.rules[i]);
8796 if (err)
8797 goto error;
8798
8799 i++;
8800 }
8801
8802 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8803 if (err)
8804 goto error;
8805
8806 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8807 if (!n_coalesce) {
8808 err = -ENOMEM;
8809 goto error;
8810 }
8811 cfg80211_rdev_free_coalesce(rdev);
8812 rdev->coalesce = n_coalesce;
8813
8814 return 0;
8815error:
8816 for (i = 0; i < new_coalesce.n_rules; i++) {
8817 tmp_rule = &new_coalesce.rules[i];
8818 for (j = 0; j < tmp_rule->n_patterns; j++)
8819 kfree(tmp_rule->patterns[j].mask);
8820 kfree(tmp_rule->patterns);
8821 }
8822 kfree(new_coalesce.rules);
8823
8824 return err;
8825}
8826
e5497d76
JB		 8827static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8828{
8829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8830 struct net_device *dev = info->user_ptr[1];
8831 struct wireless_dev *wdev = dev->ieee80211_ptr;
8832 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8833 struct cfg80211_gtk_rekey_data rekey_data;
8834 int err;
8835
8836 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8837 return -EINVAL;
8838
8839 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8840 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8841 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8842 nl80211_rekey_policy);
8843 if (err)
8844 return err;
8845
8846 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8847 return -ERANGE;
8848 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8849 return -ERANGE;
8850 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8851 return -ERANGE;
8852
8853 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8854 NL80211_KEK_LEN);
8855 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8856 NL80211_KCK_LEN);
8857 memcpy(rekey_data.replay_ctr,
8858 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8859 NL80211_REPLAY_CTR_LEN);
8860
8861 wdev_lock(wdev);
8862 if (!wdev->current_bss) {
8863 err = -ENOTCONN;
8864 goto out;
8865 }
8866
8867 if (!rdev->ops->set_rekey_data) {
8868 err = -EOPNOTSUPP;
8869 goto out;
8870 }
8871
e35e4d28 8872 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8873 out:
8874 wdev_unlock(wdev);
8875 return err;
8876}
8877
28946da7
JB		 8878static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8879 struct genl_info *info)
8880{
8881 struct net_device *dev = info->user_ptr[1];
8882 struct wireless_dev *wdev = dev->ieee80211_ptr;
8883
8884 if (wdev->iftype != NL80211_IFTYPE_AP &&
8885 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8886 return -EINVAL;
8887
15e47304 8888 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8889 return -EBUSY;
8890
15e47304 8891 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8892 return 0;
8893}
8894
7f6cf311
JB		 8895static int nl80211_probe_client(struct sk_buff *skb,
8896 struct genl_info *info)
8897{
8898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8899 struct net_device *dev = info->user_ptr[1];
8900 struct wireless_dev *wdev = dev->ieee80211_ptr;
8901 struct sk_buff *msg;
8902 void *hdr;
8903 const u8 *addr;
8904 u64 cookie;
8905 int err;
8906
8907 if (wdev->iftype != NL80211_IFTYPE_AP &&
8908 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8909 return -EOPNOTSUPP;
8910
8911 if (!info->attrs[NL80211_ATTR_MAC])
8912 return -EINVAL;
8913
8914 if (!rdev->ops->probe_client)
8915 return -EOPNOTSUPP;
8916
8917 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8918 if (!msg)
8919 return -ENOMEM;
8920
15e47304 8921 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8922 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8923 if (!hdr) {
8924 err = -ENOBUFS;
7f6cf311
JB		 8925 goto free_msg;
8926 }
8927
8928 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8929
e35e4d28 8930 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8931 if (err)
8932 goto free_msg;
8933
9360ffd1
DM		 8934 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8935 goto nla_put_failure;
7f6cf311
JB		 8936
8937 genlmsg_end(msg, hdr);
8938
8939 return genlmsg_reply(msg, info);
8940
8941 nla_put_failure:
8942 err = -ENOBUFS;
8943 free_msg:
8944 nlmsg_free(msg);
8945 return err;
8946}
8947
5e760230
JB		 8948static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8949{
8950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8951 struct cfg80211_beacon_registration *reg, *nreg;
8952 int rv;
5e760230
JB		 8953
8954 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8955 return -EOPNOTSUPP;
8956
37c73b5f
BG		 8957 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8958 if (!nreg)
8959 return -ENOMEM;
8960
8961 /* First, check if already registered. */
8962 spin_lock_bh(&rdev->beacon_registrations_lock);
8963 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8964 if (reg->nlportid == info->snd_portid) {
8965 rv = -EALREADY;
8966 goto out_err;
8967 }
8968 }
8969 /* Add it to the list */
8970 nreg->nlportid = info->snd_portid;
8971 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8972
37c73b5f 8973 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8974
8975 return 0;
37c73b5f
BG		 8976out_err:
8977 spin_unlock_bh(&rdev->beacon_registrations_lock);
8978 kfree(nreg);
8979 return rv;
5e760230
JB		 8980}
8981
98104fde
JB		 8982static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8983{
8984 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8985 struct wireless_dev *wdev = info->user_ptr[1];
8986 int err;
8987
8988 if (!rdev->ops->start_p2p_device)
8989 return -EOPNOTSUPP;
8990
8991 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8992 return -EOPNOTSUPP;
8993
8994 if (wdev->p2p_started)
8995 return 0;
8996
98104fde 8997 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8998 if (err)
8999 return err;
9000
eeb126e9 9001 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9002 if (err)
9003 return err;
9004
9005 wdev->p2p_started = true;
98104fde 9006 rdev->opencount++;
98104fde
JB		 9007
9008 return 0;
9009}
9010
9011static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9012{
9013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9014 struct wireless_dev *wdev = info->user_ptr[1];
9015
9016 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9017 return -EOPNOTSUPP;
9018
9019 if (!rdev->ops->stop_p2p_device)
9020 return -EOPNOTSUPP;
9021
f9f47529 9022 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9023
9024 return 0;
9025}
9026
3713b4e3
JB		 9027static int nl80211_get_protocol_features(struct sk_buff *skb,
9028 struct genl_info *info)
9029{
9030 void *hdr;
9031 struct sk_buff *msg;
9032
9033 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9034 if (!msg)
9035 return -ENOMEM;
9036
9037 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9038 NL80211_CMD_GET_PROTOCOL_FEATURES);
9039 if (!hdr)
9040 goto nla_put_failure;
9041
9042 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9043 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9044 goto nla_put_failure;
9045
9046 genlmsg_end(msg, hdr);
9047 return genlmsg_reply(msg, info);
9048
9049 nla_put_failure:
9050 kfree_skb(msg);
9051 return -ENOBUFS;
9052}
9053
355199e0
JM		 9054static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9055{
9056 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9057 struct cfg80211_update_ft_ies_params ft_params;
9058 struct net_device *dev = info->user_ptr[1];
9059
9060 if (!rdev->ops->update_ft_ies)
9061 return -EOPNOTSUPP;
9062
9063 if (!info->attrs[NL80211_ATTR_MDID] ||
9064 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9065 return -EINVAL;
9066
9067 memset(&ft_params, 0, sizeof(ft_params));
9068 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9069 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9070 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9071
9072 return rdev_update_ft_ies(rdev, dev, &ft_params);
9073}
9074
5de17984
AS		 9075static int nl80211_crit_protocol_start(struct sk_buff *skb,
9076 struct genl_info *info)
9077{
9078 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9079 struct wireless_dev *wdev = info->user_ptr[1];
9080 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9081 u16 duration;
9082 int ret;
9083
9084 if (!rdev->ops->crit_proto_start)
9085 return -EOPNOTSUPP;
9086
9087 if (WARN_ON(!rdev->ops->crit_proto_stop))
9088 return -EINVAL;
9089
9090 if (rdev->crit_proto_nlportid)
9091 return -EBUSY;
9092
9093 /* determine protocol if provided */
9094 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9095 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9096
9097 if (proto >= NUM_NL80211_CRIT_PROTO)
9098 return -EINVAL;
9099
9100 /* timeout must be provided */
9101 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9102 return -EINVAL;
9103
9104 duration =
9105 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9106
9107 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9108 return -ERANGE;
9109
9110 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9111 if (!ret)
9112 rdev->crit_proto_nlportid = info->snd_portid;
9113
9114 return ret;
9115}
9116
9117static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9118 struct genl_info *info)
9119{
9120 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9121 struct wireless_dev *wdev = info->user_ptr[1];
9122
9123 if (!rdev->ops->crit_proto_stop)
9124 return -EOPNOTSUPP;
9125
9126 if (rdev->crit_proto_nlportid) {
9127 rdev->crit_proto_nlportid = 0;
9128 rdev_crit_proto_stop(rdev, wdev);
9129 }
9130 return 0;
9131}
9132
ad7e718c
JB		 9133static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9134{
9135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9136 struct wireless_dev *wdev =
9137 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9138 int i, err;
9139 u32 vid, subcmd;
9140
9141 if (!rdev->wiphy.vendor_commands)
9142 return -EOPNOTSUPP;
9143
9144 if (IS_ERR(wdev)) {
9145 err = PTR_ERR(wdev);
9146 if (err != -EINVAL)
9147 return err;
9148 wdev = NULL;
9149 } else if (wdev->wiphy != &rdev->wiphy) {
9150 return -EINVAL;
9151 }
9152
9153 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9154 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9155 return -EINVAL;
9156
9157 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9158 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9159 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9160 const struct wiphy_vendor_command *vcmd;
9161 void *data = NULL;
9162 int len = 0;
9163
9164 vcmd = &rdev->wiphy.vendor_commands[i];
9165
9166 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9167 continue;
9168
9169 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9170 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9171 if (!wdev)
9172 return -EINVAL;
9173 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9174 !wdev->netdev)
9175 return -EINVAL;
9176
9177 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9178 if (wdev->netdev &&
9179 !netif_running(wdev->netdev))
9180 return -ENETDOWN;
9181 if (!wdev->netdev && !wdev->p2p_started)
9182 return -ENETDOWN;
9183 }
9184 } else {
9185 wdev = NULL;
9186 }
9187
9188 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9189 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9190 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9191 }
9192
9193 rdev->cur_cmd_info = info;
9194 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9195 data, len);
9196 rdev->cur_cmd_info = NULL;
9197 return err;
9198 }
9199
9200 return -EOPNOTSUPP;
9201}
9202
9203struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9204 enum nl80211_commands cmd,
9205 enum nl80211_attrs attr,
9206 int approxlen)
9207{
9208 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9209
9210 if (WARN_ON(!rdev->cur_cmd_info))
9211 return NULL;
9212
9213 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9214 rdev->cur_cmd_info->snd_portid,
9215 rdev->cur_cmd_info->snd_seq,
567ffc35 9216 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9217}
9218EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9219
9220int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9221{
9222 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9223 void *hdr = ((void **)skb->cb)[1];
9224 struct nlattr *data = ((void **)skb->cb)[2];
9225
9226 if (WARN_ON(!rdev->cur_cmd_info)) {
9227 kfree_skb(skb);
9228 return -EINVAL;
9229 }
9230
9231 nla_nest_end(skb, data);
9232 genlmsg_end(skb, hdr);
9233 return genlmsg_reply(skb, rdev->cur_cmd_info);
9234}
9235EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9236
9237
fa9ffc74
KP		 9238static int nl80211_set_qos_map(struct sk_buff *skb,
9239 struct genl_info *info)
9240{
9241 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9242 struct cfg80211_qos_map *qos_map = NULL;
9243 struct net_device *dev = info->user_ptr[1];
9244 u8 *pos, len, num_des, des_len, des;
9245 int ret;
9246
9247 if (!rdev->ops->set_qos_map)
9248 return -EOPNOTSUPP;
9249
9250 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9251 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9252 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9253
9254 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9255 len > IEEE80211_QOS_MAP_LEN_MAX)
9256 return -EINVAL;
9257
9258 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9259 if (!qos_map)
9260 return -ENOMEM;
9261
9262 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9263 if (num_des) {
9264 des_len = num_des *
9265 sizeof(struct cfg80211_dscp_exception);
9266 memcpy(qos_map->dscp_exception, pos, des_len);
9267 qos_map->num_des = num_des;
9268 for (des = 0; des < num_des; des++) {
9269 if (qos_map->dscp_exception[des].up > 7) {
9270 kfree(qos_map);
9271 return -EINVAL;
9272 }
9273 }
9274 pos += des_len;
9275 }
9276 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9277 }
9278
9279 wdev_lock(dev->ieee80211_ptr);
9280 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9281 if (!ret)
9282 ret = rdev_set_qos_map(rdev, dev, qos_map);
9283 wdev_unlock(dev->ieee80211_ptr);
9284
9285 kfree(qos_map);
9286 return ret;
9287}
9288
4c476991
JB		 9289#define NL80211_FLAG_NEED_WIPHY 0x01
9290#define NL80211_FLAG_NEED_NETDEV 0x02
9291#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9292#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9293#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9294 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9295#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9296/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9297#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9298 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9299
f84f771d 9300static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9301 struct genl_info *info)
9302{
9303 struct cfg80211_registered_device *rdev;
89a54e48 9304 struct wireless_dev *wdev;
4c476991 9305 struct net_device *dev;
4c476991
JB		 9306 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9307
9308 if (rtnl)
9309 rtnl_lock();
9310
9311 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9312 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9313 if (IS_ERR(rdev)) {
9314 if (rtnl)
9315 rtnl_unlock();
9316 return PTR_ERR(rdev);
9317 }
9318 info->user_ptr[0] = rdev;
1bf614ef
JB		 9319 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9320 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9321 ASSERT_RTNL();
9322
89a54e48
JB		 9323 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9324 info->attrs);
9325 if (IS_ERR(wdev)) {
4c476991
JB		 9326 if (rtnl)
9327 rtnl_unlock();
89a54e48 9328 return PTR_ERR(wdev);
4c476991 9329 }
89a54e48 9330
89a54e48
JB		 9331 dev = wdev->netdev;
9332 rdev = wiphy_to_dev(wdev->wiphy);
9333
1bf614ef
JB		 9334 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9335 if (!dev) {
1bf614ef
JB		 9336 if (rtnl)
9337 rtnl_unlock();
9338 return -EINVAL;
9339 }
9340
9341 info->user_ptr[1] = dev;
9342 } else {
9343 info->user_ptr[1] = wdev;
41265714 9344 }
1bf614ef
JB		 9345
9346 if (dev) {
9347 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9348 !netif_running(dev)) {
1bf614ef
JB		 9349 if (rtnl)
9350 rtnl_unlock();
9351 return -ENETDOWN;
9352 }
9353
9354 dev_hold(dev);
98104fde
JB		 9355 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9356 if (!wdev->p2p_started) {
98104fde
JB		 9357 if (rtnl)
9358 rtnl_unlock();
9359 return -ENETDOWN;
9360 }
41265714 9361 }
89a54e48 9362
4c476991 9363 info->user_ptr[0] = rdev;
4c476991
JB		 9364 }
9365
9366 return 0;
9367}
9368
f84f771d 9369static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9370 struct genl_info *info)
9371{
1bf614ef
JB		 9372 if (info->user_ptr[1]) {
9373 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9374 struct wireless_dev *wdev = info->user_ptr[1];
9375
9376 if (wdev->netdev)
9377 dev_put(wdev->netdev);
9378 } else {
9379 dev_put(info->user_ptr[1]);
9380 }
9381 }
4c476991
JB		 9382 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9383 rtnl_unlock();
9384}
9385
4534de83 9386static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9387 {
9388 .cmd = NL80211_CMD_GET_WIPHY,
9389 .doit = nl80211_get_wiphy,
9390 .dumpit = nl80211_dump_wiphy,
86e8cf98 9391 .done = nl80211_dump_wiphy_done,
55682965
JB		 9392 .policy = nl80211_policy,
9393 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9394 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9395 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9396 },
9397 {
9398 .cmd = NL80211_CMD_SET_WIPHY,
9399 .doit = nl80211_set_wiphy,
9400 .policy = nl80211_policy,
9401 .flags = GENL_ADMIN_PERM,
4c476991 9402 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9403 },
9404 {
9405 .cmd = NL80211_CMD_GET_INTERFACE,
9406 .doit = nl80211_get_interface,
9407 .dumpit = nl80211_dump_interface,
9408 .policy = nl80211_policy,
9409 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9410 .internal_flags = NL80211_FLAG_NEED_WDEV |
9411 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9412 },
9413 {
9414 .cmd = NL80211_CMD_SET_INTERFACE,
9415 .doit = nl80211_set_interface,
9416 .policy = nl80211_policy,
9417 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9418 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9419 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9420 },
9421 {
9422 .cmd = NL80211_CMD_NEW_INTERFACE,
9423 .doit = nl80211_new_interface,
9424 .policy = nl80211_policy,
9425 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9426 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9427 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9428 },
9429 {
9430 .cmd = NL80211_CMD_DEL_INTERFACE,
9431 .doit = nl80211_del_interface,
9432 .policy = nl80211_policy,
41ade00f 9433 .flags = GENL_ADMIN_PERM,
84efbb84 9434 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9435 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9436 },
9437 {
9438 .cmd = NL80211_CMD_GET_KEY,
9439 .doit = nl80211_get_key,
9440 .policy = nl80211_policy,
9441 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9443 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9444 },
9445 {
9446 .cmd = NL80211_CMD_SET_KEY,
9447 .doit = nl80211_set_key,
9448 .policy = nl80211_policy,
9449 .flags = GENL_ADMIN_PERM,
41265714 9450 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9451 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9452 },
9453 {
9454 .cmd = NL80211_CMD_NEW_KEY,
9455 .doit = nl80211_new_key,
9456 .policy = nl80211_policy,
9457 .flags = GENL_ADMIN_PERM,
41265714 9458 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9459 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9460 },
9461 {
9462 .cmd = NL80211_CMD_DEL_KEY,
9463 .doit = nl80211_del_key,
9464 .policy = nl80211_policy,
55682965 9465 .flags = GENL_ADMIN_PERM,
41265714 9466 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9467 NL80211_FLAG_NEED_RTNL,
55682965 9468 },
ed1b6cc7
JB		 9469 {
9470 .cmd = NL80211_CMD_SET_BEACON,
9471 .policy = nl80211_policy,
9472 .flags = GENL_ADMIN_PERM,
8860020e 9473 .doit = nl80211_set_beacon,
2b5f8b0b 9474 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9475 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9476 },
9477 {
8860020e 9478 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9479 .policy = nl80211_policy,
9480 .flags = GENL_ADMIN_PERM,
8860020e 9481 .doit = nl80211_start_ap,
2b5f8b0b 9482 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9483 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9484 },
9485 {
8860020e 9486 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9487 .policy = nl80211_policy,
9488 .flags = GENL_ADMIN_PERM,
8860020e 9489 .doit = nl80211_stop_ap,
2b5f8b0b 9490 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9491 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9492 },
5727ef1b
JB		 9493 {
9494 .cmd = NL80211_CMD_GET_STATION,
9495 .doit = nl80211_get_station,
2ec600d6 9496 .dumpit = nl80211_dump_station,
5727ef1b 9497 .policy = nl80211_policy,
4c476991
JB		 9498 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9499 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9500 },
9501 {
9502 .cmd = NL80211_CMD_SET_STATION,
9503 .doit = nl80211_set_station,
9504 .policy = nl80211_policy,
9505 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9506 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9507 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9508 },
9509 {
9510 .cmd = NL80211_CMD_NEW_STATION,
9511 .doit = nl80211_new_station,
9512 .policy = nl80211_policy,
9513 .flags = GENL_ADMIN_PERM,
41265714 9514 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9515 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9516 },
9517 {
9518 .cmd = NL80211_CMD_DEL_STATION,
9519 .doit = nl80211_del_station,
9520 .policy = nl80211_policy,
2ec600d6 9521 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9522 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9523 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9524 },
9525 {
9526 .cmd = NL80211_CMD_GET_MPATH,
9527 .doit = nl80211_get_mpath,
9528 .dumpit = nl80211_dump_mpath,
9529 .policy = nl80211_policy,
9530 .flags = GENL_ADMIN_PERM,
41265714 9531 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9532 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9533 },
9534 {
9535 .cmd = NL80211_CMD_SET_MPATH,
9536 .doit = nl80211_set_mpath,
9537 .policy = nl80211_policy,
9538 .flags = GENL_ADMIN_PERM,
41265714 9539 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9540 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9541 },
9542 {
9543 .cmd = NL80211_CMD_NEW_MPATH,
9544 .doit = nl80211_new_mpath,
9545 .policy = nl80211_policy,
9546 .flags = GENL_ADMIN_PERM,
41265714 9547 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9548 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9549 },
9550 {
9551 .cmd = NL80211_CMD_DEL_MPATH,
9552 .doit = nl80211_del_mpath,
9553 .policy = nl80211_policy,
9f1ba906 9554 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9555 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9556 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9557 },
9558 {
9559 .cmd = NL80211_CMD_SET_BSS,
9560 .doit = nl80211_set_bss,
9561 .policy = nl80211_policy,
b2e1b302 9562 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9563 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9564 NL80211_FLAG_NEED_RTNL,
b2e1b302 9565 },
f130347c
LR		 9566 {
9567 .cmd = NL80211_CMD_GET_REG,
9568 .doit = nl80211_get_reg,
9569 .policy = nl80211_policy,
5fe231e8 9570 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9571 /* can be retrieved by unprivileged users */
9572 },
b2e1b302
LR		 9573 {
9574 .cmd = NL80211_CMD_SET_REG,
9575 .doit = nl80211_set_reg,
9576 .policy = nl80211_policy,
9577 .flags = GENL_ADMIN_PERM,
5fe231e8 9578 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9579 },
9580 {
9581 .cmd = NL80211_CMD_REQ_SET_REG,
9582 .doit = nl80211_req_set_reg,
9583 .policy = nl80211_policy,
93da9cc1 9584 .flags = GENL_ADMIN_PERM,
9585 },
9586 {
24bdd9f4
JC		 9587 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9588 .doit = nl80211_get_mesh_config,
93da9cc1 9589 .policy = nl80211_policy,
9590 /* can be retrieved by unprivileged users */
2b5f8b0b 9591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9592 NL80211_FLAG_NEED_RTNL,
93da9cc1 9593 },
9594 {
24bdd9f4
JC		 9595 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9596 .doit = nl80211_update_mesh_config,
93da9cc1 9597 .policy = nl80211_policy,
9aed3cc1 9598 .flags = GENL_ADMIN_PERM,
29cbe68c 9599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9600 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9601 },
2a519311
JB		 9602 {
9603 .cmd = NL80211_CMD_TRIGGER_SCAN,
9604 .doit = nl80211_trigger_scan,
9605 .policy = nl80211_policy,
9606 .flags = GENL_ADMIN_PERM,
fd014284 9607 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9608 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9609 },
9610 {
9611 .cmd = NL80211_CMD_GET_SCAN,
9612 .policy = nl80211_policy,
9613 .dumpit = nl80211_dump_scan,
9614 },
807f8a8c
LC		 9615 {
9616 .cmd = NL80211_CMD_START_SCHED_SCAN,
9617 .doit = nl80211_start_sched_scan,
9618 .policy = nl80211_policy,
9619 .flags = GENL_ADMIN_PERM,
9620 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9621 NL80211_FLAG_NEED_RTNL,
9622 },
9623 {
9624 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9625 .doit = nl80211_stop_sched_scan,
9626 .policy = nl80211_policy,
9627 .flags = GENL_ADMIN_PERM,
9628 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9629 NL80211_FLAG_NEED_RTNL,
9630 },
636a5d36
JM		 9631 {
9632 .cmd = NL80211_CMD_AUTHENTICATE,
9633 .doit = nl80211_authenticate,
9634 .policy = nl80211_policy,
9635 .flags = GENL_ADMIN_PERM,
41265714 9636 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9637 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9638 },
9639 {
9640 .cmd = NL80211_CMD_ASSOCIATE,
9641 .doit = nl80211_associate,
9642 .policy = nl80211_policy,
9643 .flags = GENL_ADMIN_PERM,
41265714 9644 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9645 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9646 },
9647 {
9648 .cmd = NL80211_CMD_DEAUTHENTICATE,
9649 .doit = nl80211_deauthenticate,
9650 .policy = nl80211_policy,
9651 .flags = GENL_ADMIN_PERM,
41265714 9652 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9653 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9654 },
9655 {
9656 .cmd = NL80211_CMD_DISASSOCIATE,
9657 .doit = nl80211_disassociate,
9658 .policy = nl80211_policy,
9659 .flags = GENL_ADMIN_PERM,
41265714 9660 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9661 NL80211_FLAG_NEED_RTNL,
636a5d36 9662 },
04a773ad
JB		 9663 {
9664 .cmd = NL80211_CMD_JOIN_IBSS,
9665 .doit = nl80211_join_ibss,
9666 .policy = nl80211_policy,
9667 .flags = GENL_ADMIN_PERM,
41265714 9668 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9669 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9670 },
9671 {
9672 .cmd = NL80211_CMD_LEAVE_IBSS,
9673 .doit = nl80211_leave_ibss,
9674 .policy = nl80211_policy,
9675 .flags = GENL_ADMIN_PERM,
41265714 9676 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9677 NL80211_FLAG_NEED_RTNL,
04a773ad 9678 },
aff89a9b
JB		 9679#ifdef CONFIG_NL80211_TESTMODE
9680 {
9681 .cmd = NL80211_CMD_TESTMODE,
9682 .doit = nl80211_testmode_do,
71063f0e 9683 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9684 .policy = nl80211_policy,
9685 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9686 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9687 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9688 },
9689#endif
b23aa676
SO		 9690 {
9691 .cmd = NL80211_CMD_CONNECT,
9692 .doit = nl80211_connect,
9693 .policy = nl80211_policy,
9694 .flags = GENL_ADMIN_PERM,
41265714 9695 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9696 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9697 },
9698 {
9699 .cmd = NL80211_CMD_DISCONNECT,
9700 .doit = nl80211_disconnect,
9701 .policy = nl80211_policy,
9702 .flags = GENL_ADMIN_PERM,
41265714 9703 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9704 NL80211_FLAG_NEED_RTNL,
b23aa676 9705 },
463d0183
JB		 9706 {
9707 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9708 .doit = nl80211_wiphy_netns,
9709 .policy = nl80211_policy,
9710 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9711 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9712 NL80211_FLAG_NEED_RTNL,
463d0183 9713 },
61fa713c
HS		 9714 {
9715 .cmd = NL80211_CMD_GET_SURVEY,
9716 .policy = nl80211_policy,
9717 .dumpit = nl80211_dump_survey,
9718 },
67fbb16b
SO		 9719 {
9720 .cmd = NL80211_CMD_SET_PMKSA,
9721 .doit = nl80211_setdel_pmksa,
9722 .policy = nl80211_policy,
9723 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9724 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9725 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9726 },
9727 {
9728 .cmd = NL80211_CMD_DEL_PMKSA,
9729 .doit = nl80211_setdel_pmksa,
9730 .policy = nl80211_policy,
9731 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9732 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9733 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9734 },
9735 {
9736 .cmd = NL80211_CMD_FLUSH_PMKSA,
9737 .doit = nl80211_flush_pmksa,
9738 .policy = nl80211_policy,
9739 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9740 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9741 NL80211_FLAG_NEED_RTNL,
67fbb16b 9742 },
9588bbd5
JM		 9743 {
9744 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9745 .doit = nl80211_remain_on_channel,
9746 .policy = nl80211_policy,
9747 .flags = GENL_ADMIN_PERM,
71bbc994 9748 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9749 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9750 },
9751 {
9752 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9753 .doit = nl80211_cancel_remain_on_channel,
9754 .policy = nl80211_policy,
9755 .flags = GENL_ADMIN_PERM,
71bbc994 9756 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9757 NL80211_FLAG_NEED_RTNL,
9588bbd5 9758 },
13ae75b1
JM		 9759 {
9760 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9761 .doit = nl80211_set_tx_bitrate_mask,
9762 .policy = nl80211_policy,
9763 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9764 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9765 NL80211_FLAG_NEED_RTNL,
13ae75b1 9766 },
026331c4 9767 {
2e161f78
JB		 9768 .cmd = NL80211_CMD_REGISTER_FRAME,
9769 .doit = nl80211_register_mgmt,
026331c4
JM		 9770 .policy = nl80211_policy,
9771 .flags = GENL_ADMIN_PERM,
71bbc994 9772 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9773 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9774 },
9775 {
2e161f78
JB		 9776 .cmd = NL80211_CMD_FRAME,
9777 .doit = nl80211_tx_mgmt,
026331c4 9778 .policy = nl80211_policy,
f7ca38df 9779 .flags = GENL_ADMIN_PERM,
71bbc994 9780 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9781 NL80211_FLAG_NEED_RTNL,
9782 },
9783 {
9784 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9785 .doit = nl80211_tx_mgmt_cancel_wait,
9786 .policy = nl80211_policy,
026331c4 9787 .flags = GENL_ADMIN_PERM,
71bbc994 9788 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9789 NL80211_FLAG_NEED_RTNL,
026331c4 9790 },
ffb9eb3d
KV		 9791 {
9792 .cmd = NL80211_CMD_SET_POWER_SAVE,
9793 .doit = nl80211_set_power_save,
9794 .policy = nl80211_policy,
9795 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9796 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9797 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9798 },
9799 {
9800 .cmd = NL80211_CMD_GET_POWER_SAVE,
9801 .doit = nl80211_get_power_save,
9802 .policy = nl80211_policy,
9803 /* can be retrieved by unprivileged users */
4c476991
JB		 9804 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9805 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9806 },
d6dc1a38
JO		 9807 {
9808 .cmd = NL80211_CMD_SET_CQM,
9809 .doit = nl80211_set_cqm,
9810 .policy = nl80211_policy,
9811 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9812 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9813 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9814 },
f444de05
JB		 9815 {
9816 .cmd = NL80211_CMD_SET_CHANNEL,
9817 .doit = nl80211_set_channel,
9818 .policy = nl80211_policy,
9819 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9820 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9821 NL80211_FLAG_NEED_RTNL,
f444de05 9822 },
e8347eba
BJ		 9823 {
9824 .cmd = NL80211_CMD_SET_WDS_PEER,
9825 .doit = nl80211_set_wds_peer,
9826 .policy = nl80211_policy,
9827 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9828 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9829 NL80211_FLAG_NEED_RTNL,
e8347eba 9830 },
29cbe68c
JB		 9831 {
9832 .cmd = NL80211_CMD_JOIN_MESH,
9833 .doit = nl80211_join_mesh,
9834 .policy = nl80211_policy,
9835 .flags = GENL_ADMIN_PERM,
9836 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9837 NL80211_FLAG_NEED_RTNL,
9838 },
9839 {
9840 .cmd = NL80211_CMD_LEAVE_MESH,
9841 .doit = nl80211_leave_mesh,
9842 .policy = nl80211_policy,
9843 .flags = GENL_ADMIN_PERM,
9844 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9845 NL80211_FLAG_NEED_RTNL,
9846 },
dfb89c56 9847#ifdef CONFIG_PM
ff1b6e69
JB		 9848 {
9849 .cmd = NL80211_CMD_GET_WOWLAN,
9850 .doit = nl80211_get_wowlan,
9851 .policy = nl80211_policy,
9852 /* can be retrieved by unprivileged users */
9853 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9854 NL80211_FLAG_NEED_RTNL,
9855 },
9856 {
9857 .cmd = NL80211_CMD_SET_WOWLAN,
9858 .doit = nl80211_set_wowlan,
9859 .policy = nl80211_policy,
9860 .flags = GENL_ADMIN_PERM,
9861 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9862 NL80211_FLAG_NEED_RTNL,
9863 },
dfb89c56 9864#endif
e5497d76
JB		 9865 {
9866 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9867 .doit = nl80211_set_rekey_data,
9868 .policy = nl80211_policy,
9869 .flags = GENL_ADMIN_PERM,
9870 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9871 NL80211_FLAG_NEED_RTNL,
9872 },
109086ce
AN		 9873 {
9874 .cmd = NL80211_CMD_TDLS_MGMT,
9875 .doit = nl80211_tdls_mgmt,
9876 .policy = nl80211_policy,
9877 .flags = GENL_ADMIN_PERM,
9878 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9879 NL80211_FLAG_NEED_RTNL,
9880 },
9881 {
9882 .cmd = NL80211_CMD_TDLS_OPER,
9883 .doit = nl80211_tdls_oper,
9884 .policy = nl80211_policy,
9885 .flags = GENL_ADMIN_PERM,
9886 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9887 NL80211_FLAG_NEED_RTNL,
9888 },
28946da7
JB		 9889 {
9890 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9891 .doit = nl80211_register_unexpected_frame,
9892 .policy = nl80211_policy,
9893 .flags = GENL_ADMIN_PERM,
9894 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9895 NL80211_FLAG_NEED_RTNL,
9896 },
7f6cf311
JB		 9897 {
9898 .cmd = NL80211_CMD_PROBE_CLIENT,
9899 .doit = nl80211_probe_client,
9900 .policy = nl80211_policy,
9901 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9902 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9903 NL80211_FLAG_NEED_RTNL,
9904 },
5e760230
JB		 9905 {
9906 .cmd = NL80211_CMD_REGISTER_BEACONS,
9907 .doit = nl80211_register_beacons,
9908 .policy = nl80211_policy,
9909 .flags = GENL_ADMIN_PERM,
9910 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9911 NL80211_FLAG_NEED_RTNL,
9912 },
1d9d9213
SW		 9913 {
9914 .cmd = NL80211_CMD_SET_NOACK_MAP,
9915 .doit = nl80211_set_noack_map,
9916 .policy = nl80211_policy,
9917 .flags = GENL_ADMIN_PERM,
9918 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9919 NL80211_FLAG_NEED_RTNL,
9920 },
98104fde
JB		 9921 {
9922 .cmd = NL80211_CMD_START_P2P_DEVICE,
9923 .doit = nl80211_start_p2p_device,
9924 .policy = nl80211_policy,
9925 .flags = GENL_ADMIN_PERM,
9926 .internal_flags = NL80211_FLAG_NEED_WDEV |
9927 NL80211_FLAG_NEED_RTNL,
9928 },
9929 {
9930 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9931 .doit = nl80211_stop_p2p_device,
9932 .policy = nl80211_policy,
9933 .flags = GENL_ADMIN_PERM,
9934 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9935 NL80211_FLAG_NEED_RTNL,
9936 },
f4e583c8
AQ		 9937 {
9938 .cmd = NL80211_CMD_SET_MCAST_RATE,
9939 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 9940 .policy = nl80211_policy,
9941 .flags = GENL_ADMIN_PERM,
9942 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9943 NL80211_FLAG_NEED_RTNL,
9944 },
9945 {
9946 .cmd = NL80211_CMD_SET_MAC_ACL,
9947 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 9948 .policy = nl80211_policy,
9949 .flags = GENL_ADMIN_PERM,
9950 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9951 NL80211_FLAG_NEED_RTNL,
9952 },
04f39047
SW		 9953 {
9954 .cmd = NL80211_CMD_RADAR_DETECT,
9955 .doit = nl80211_start_radar_detection,
9956 .policy = nl80211_policy,
9957 .flags = GENL_ADMIN_PERM,
9958 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9959 NL80211_FLAG_NEED_RTNL,
9960 },
3713b4e3
JB		 9961 {
9962 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9963 .doit = nl80211_get_protocol_features,
9964 .policy = nl80211_policy,
9965 },
355199e0
JM		 9966 {
9967 .cmd = NL80211_CMD_UPDATE_FT_IES,
9968 .doit = nl80211_update_ft_ies,
9969 .policy = nl80211_policy,
9970 .flags = GENL_ADMIN_PERM,
9971 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9972 NL80211_FLAG_NEED_RTNL,
9973 },
5de17984
AS		 9974 {
9975 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9976 .doit = nl80211_crit_protocol_start,
9977 .policy = nl80211_policy,
9978 .flags = GENL_ADMIN_PERM,
9979 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9980 NL80211_FLAG_NEED_RTNL,
9981 },
9982 {
9983 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9984 .doit = nl80211_crit_protocol_stop,
9985 .policy = nl80211_policy,
9986 .flags = GENL_ADMIN_PERM,
9987 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9988 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 9989 },
9990 {
9991 .cmd = NL80211_CMD_GET_COALESCE,
9992 .doit = nl80211_get_coalesce,
9993 .policy = nl80211_policy,
9994 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9995 NL80211_FLAG_NEED_RTNL,
9996 },
9997 {
9998 .cmd = NL80211_CMD_SET_COALESCE,
9999 .doit = nl80211_set_coalesce,
10000 .policy = nl80211_policy,
10001 .flags = GENL_ADMIN_PERM,
10002 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10003 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10004 },
10005 {
10006 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10007 .doit = nl80211_channel_switch,
10008 .policy = nl80211_policy,
10009 .flags = GENL_ADMIN_PERM,
10010 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10011 NL80211_FLAG_NEED_RTNL,
10012 },
ad7e718c
JB		 10013 {
10014 .cmd = NL80211_CMD_VENDOR,
10015 .doit = nl80211_vendor_cmd,
10016 .policy = nl80211_policy,
10017 .flags = GENL_ADMIN_PERM,
10018 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10019 NL80211_FLAG_NEED_RTNL,
10020 },
fa9ffc74
KP		 10021 {
10022 .cmd = NL80211_CMD_SET_QOS_MAP,
10023 .doit = nl80211_set_qos_map,
10024 .policy = nl80211_policy,
10025 .flags = GENL_ADMIN_PERM,
10026 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10027 NL80211_FLAG_NEED_RTNL,
10028 },
55682965 10029};
9588bbd5 10030
55682965
JB		 10031/* notification functions */
10032
10033void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
10034{
10035 struct sk_buff *msg;
86e8cf98 10036 struct nl80211_dump_wiphy_state state = {};
55682965 10037
fd2120ca 10038 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10039 if (!msg)
10040 return;
10041
86e8cf98 10042 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10043 nlmsg_free(msg);
10044 return;
10045 }
10046
68eb5503 10047 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10048 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10049}
10050
362a415d
JB		 10051static int nl80211_add_scan_req(struct sk_buff *msg,
10052 struct cfg80211_registered_device *rdev)
10053{
10054 struct cfg80211_scan_request *req = rdev->scan_req;
10055 struct nlattr *nest;
10056 int i;
10057
10058 if (WARN_ON(!req))
10059 return 0;
10060
10061 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10062 if (!nest)
10063 goto nla_put_failure;
9360ffd1
DM		 10064 for (i = 0; i < req->n_ssids; i++) {
10065 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10066 goto nla_put_failure;
10067 }
362a415d
JB		 10068 nla_nest_end(msg, nest);
10069
10070 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10071 if (!nest)
10072 goto nla_put_failure;
9360ffd1
DM		 10073 for (i = 0; i < req->n_channels; i++) {
10074 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10075 goto nla_put_failure;
10076 }
362a415d
JB		 10077 nla_nest_end(msg, nest);
10078
9360ffd1
DM		 10079 if (req->ie &&
10080 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10081 goto nla_put_failure;
362a415d 10082
ae917c9f
JB		 10083 if (req->flags &&
10084 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10085 goto nla_put_failure;
ed473771 10086
362a415d
JB		 10087 return 0;
10088 nla_put_failure:
10089 return -ENOBUFS;
10090}
10091
a538e2d5
JB		 10092static int nl80211_send_scan_msg(struct sk_buff *msg,
10093 struct cfg80211_registered_device *rdev,
fd014284 10094 struct wireless_dev *wdev,
15e47304 10095 u32 portid, u32 seq, int flags,
a538e2d5 10096 u32 cmd)
2a519311
JB		 10097{
10098 void *hdr;
10099
15e47304 10100 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10101 if (!hdr)
10102 return -1;
10103
9360ffd1 10104 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10105 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10106 wdev->netdev->ifindex)) ||
10107 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10108 goto nla_put_failure;
2a519311 10109
362a415d
JB		 10110 /* ignore errors and send incomplete event anyway */
10111 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10112
10113 return genlmsg_end(msg, hdr);
10114
10115 nla_put_failure:
10116 genlmsg_cancel(msg, hdr);
10117 return -EMSGSIZE;
10118}
10119
807f8a8c
LC		 10120static int
10121nl80211_send_sched_scan_msg(struct sk_buff *msg,
10122 struct cfg80211_registered_device *rdev,
10123 struct net_device *netdev,
15e47304 10124 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10125{
10126 void *hdr;
10127
15e47304 10128 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10129 if (!hdr)
10130 return -1;
10131
9360ffd1
DM		 10132 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10133 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10134 goto nla_put_failure;
807f8a8c
LC		 10135
10136 return genlmsg_end(msg, hdr);
10137
10138 nla_put_failure:
10139 genlmsg_cancel(msg, hdr);
10140 return -EMSGSIZE;
10141}
10142
a538e2d5 10143void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10144 struct wireless_dev *wdev)
a538e2d5
JB		 10145{
10146 struct sk_buff *msg;
10147
58050fce 10148 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10149 if (!msg)
10150 return;
10151
fd014284 10152 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10153 NL80211_CMD_TRIGGER_SCAN) < 0) {
10154 nlmsg_free(msg);
10155 return;
10156 }
10157
68eb5503 10158 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10159 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10160}
10161
f9d15d16
JB		 10162struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10163 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10164{
10165 struct sk_buff *msg;
10166
fd2120ca 10167 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10168 if (!msg)
f9d15d16 10169 return NULL;
2a519311 10170
fd014284 10171 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10172 aborted ? NL80211_CMD_SCAN_ABORTED :
10173 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10174 nlmsg_free(msg);
f9d15d16 10175 return NULL;
2a519311
JB		 10176 }
10177
f9d15d16 10178 return msg;
2a519311
JB		 10179}
10180
f9d15d16
JB		 10181void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10182 struct sk_buff *msg)
2a519311 10183{
2a519311
JB		 10184 if (!msg)
10185 return;
10186
68eb5503 10187 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10188 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10189}
10190
807f8a8c
LC		 10191void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10192 struct net_device *netdev)
10193{
10194 struct sk_buff *msg;
10195
10196 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10197 if (!msg)
10198 return;
10199
10200 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10201 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10202 nlmsg_free(msg);
10203 return;
10204 }
10205
68eb5503 10206 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10207 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10208}
10209
10210void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10211 struct net_device *netdev, u32 cmd)
10212{
10213 struct sk_buff *msg;
10214
58050fce 10215 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10216 if (!msg)
10217 return;
10218
10219 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10220 nlmsg_free(msg);
10221 return;
10222 }
10223
68eb5503 10224 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10225 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10226}
10227
73d54c9e
LR		 10228/*
10229 * This can happen on global regulatory changes or device specific settings
10230 * based on custom world regulatory domains.
10231 */
10232void nl80211_send_reg_change_event(struct regulatory_request *request)
10233{
10234 struct sk_buff *msg;
10235 void *hdr;
10236
fd2120ca 10237 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10238 if (!msg)
10239 return;
10240
10241 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10242 if (!hdr) {
10243 nlmsg_free(msg);
10244 return;
10245 }
10246
10247 /* Userspace can always count this one always being set */
9360ffd1
DM		 10248 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10249 goto nla_put_failure;
10250
10251 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10252 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10253 NL80211_REGDOM_TYPE_WORLD))
10254 goto nla_put_failure;
10255 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10256 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10257 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10258 goto nla_put_failure;
10259 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10260 request->intersect) {
10261 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10262 NL80211_REGDOM_TYPE_INTERSECTION))
10263 goto nla_put_failure;
10264 } else {
10265 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10266 NL80211_REGDOM_TYPE_COUNTRY) ||
10267 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10268 request->alpha2))
10269 goto nla_put_failure;
10270 }
10271
f4173766 10272 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10273 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10274 goto nla_put_failure;
73d54c9e 10275
3b7b72ee 10276 genlmsg_end(msg, hdr);
73d54c9e 10277
bc43b28c 10278 rcu_read_lock();
68eb5503 10279 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10280 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10281 rcu_read_unlock();
73d54c9e
LR		 10282
10283 return;
10284
10285nla_put_failure:
10286 genlmsg_cancel(msg, hdr);
10287 nlmsg_free(msg);
10288}
10289
6039f6d2
JM		 10290static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10291 struct net_device *netdev,
10292 const u8 *buf, size_t len,
e6d6e342 10293 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10294{
10295 struct sk_buff *msg;
10296 void *hdr;
10297
e6d6e342 10298 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10299 if (!msg)
10300 return;
10301
10302 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10303 if (!hdr) {
10304 nlmsg_free(msg);
10305 return;
10306 }
10307
9360ffd1
DM		 10308 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10309 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10310 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10311 goto nla_put_failure;
6039f6d2 10312
3b7b72ee 10313 genlmsg_end(msg, hdr);
6039f6d2 10314
68eb5503 10315 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10316 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10317 return;
10318
10319 nla_put_failure:
10320 genlmsg_cancel(msg, hdr);
10321 nlmsg_free(msg);
10322}
10323
10324void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10325 struct net_device *netdev, const u8 *buf,
10326 size_t len, gfp_t gfp)
6039f6d2
JM		 10327{
10328 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10329 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10330}
10331
10332void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10333 struct net_device *netdev, const u8 *buf,
e6d6e342 10334 size_t len, gfp_t gfp)
6039f6d2 10335{
e6d6e342
JB		 10336 nl80211_send_mlme_event(rdev, netdev, buf, len,
10337 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10338}
10339
53b46b84 10340void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10341 struct net_device *netdev, const u8 *buf,
10342 size_t len, gfp_t gfp)
6039f6d2
JM		 10343{
10344 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10345 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10346}
10347
53b46b84
JM		 10348void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10349 struct net_device *netdev, const u8 *buf,
e6d6e342 10350 size_t len, gfp_t gfp)
6039f6d2
JM		 10351{
10352 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10353 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10354}
10355
6ff57cf8
JB		 10356void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10357 size_t len)
cf4e594e 10358{
947add36
JB		 10359 struct wireless_dev *wdev = dev->ieee80211_ptr;
10360 struct wiphy *wiphy = wdev->wiphy;
10361 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6ff57cf8
JB		 10362 const struct ieee80211_mgmt *mgmt = (void *)buf;
10363 u32 cmd;
947add36 10364
6ff57cf8
JB		 10365 if (WARN_ON(len < 2))
10366 return;
cf4e594e 10367
6ff57cf8
JB		 10368 if (ieee80211_is_deauth(mgmt->frame_control))
10369 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10370 else
10371 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10372
6ff57cf8
JB		 10373 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10374 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10375}
6ff57cf8 10376EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10377
1b06bb40
LR		 10378static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10379 struct net_device *netdev, int cmd,
e6d6e342 10380 const u8 *addr, gfp_t gfp)
1965c853
JM		 10381{
10382 struct sk_buff *msg;
10383 void *hdr;
10384
e6d6e342 10385 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10386 if (!msg)
10387 return;
10388
10389 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10390 if (!hdr) {
10391 nlmsg_free(msg);
10392 return;
10393 }
10394
9360ffd1
DM		 10395 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10396 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10397 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10398 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10399 goto nla_put_failure;
1965c853 10400
3b7b72ee 10401 genlmsg_end(msg, hdr);
1965c853 10402
68eb5503 10403 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10404 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10405 return;
10406
10407 nla_put_failure:
10408 genlmsg_cancel(msg, hdr);
10409 nlmsg_free(msg);
10410}
10411
10412void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10413 struct net_device *netdev, const u8 *addr,
10414 gfp_t gfp)
1965c853
JM		 10415{
10416 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10417 addr, gfp);
1965c853
JM		 10418}
10419
10420void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10421 struct net_device *netdev, const u8 *addr,
10422 gfp_t gfp)
1965c853 10423{
e6d6e342
JB		 10424 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10425 addr, gfp);
1965c853
JM		 10426}
10427
b23aa676
SO		 10428void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10429 struct net_device *netdev, const u8 *bssid,
10430 const u8 *req_ie, size_t req_ie_len,
10431 const u8 *resp_ie, size_t resp_ie_len,
10432 u16 status, gfp_t gfp)
10433{
10434 struct sk_buff *msg;
10435 void *hdr;
10436
58050fce 10437 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10438 if (!msg)
10439 return;
10440
10441 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10442 if (!hdr) {
10443 nlmsg_free(msg);
10444 return;
10445 }
10446
9360ffd1
DM		 10447 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10448 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10449 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10450 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10451 (req_ie &&
10452 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10453 (resp_ie &&
10454 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10455 goto nla_put_failure;
b23aa676 10456
3b7b72ee 10457 genlmsg_end(msg, hdr);
b23aa676 10458
68eb5503 10459 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10460 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10461 return;
10462
10463 nla_put_failure:
10464 genlmsg_cancel(msg, hdr);
10465 nlmsg_free(msg);
10466
10467}
10468
10469void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10470 struct net_device *netdev, const u8 *bssid,
10471 const u8 *req_ie, size_t req_ie_len,
10472 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10473{
10474 struct sk_buff *msg;
10475 void *hdr;
10476
58050fce 10477 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10478 if (!msg)
10479 return;
10480
10481 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10482 if (!hdr) {
10483 nlmsg_free(msg);
10484 return;
10485 }
10486
9360ffd1
DM		 10487 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10488 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10489 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10490 (req_ie &&
10491 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10492 (resp_ie &&
10493 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10494 goto nla_put_failure;
b23aa676 10495
3b7b72ee 10496 genlmsg_end(msg, hdr);
b23aa676 10497
68eb5503 10498 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10499 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10500 return;
10501
10502 nla_put_failure:
10503 genlmsg_cancel(msg, hdr);
10504 nlmsg_free(msg);
10505
10506}
10507
10508void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10509 struct net_device *netdev, u16 reason,
667503dd 10510 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10511{
10512 struct sk_buff *msg;
10513 void *hdr;
10514
58050fce 10515 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10516 if (!msg)
10517 return;
10518
10519 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10520 if (!hdr) {
10521 nlmsg_free(msg);
10522 return;
10523 }
10524
9360ffd1
DM		 10525 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10526 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10527 (from_ap && reason &&
10528 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10529 (from_ap &&
10530 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10531 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10532 goto nla_put_failure;
b23aa676 10533
3b7b72ee 10534 genlmsg_end(msg, hdr);
b23aa676 10535
68eb5503 10536 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10537 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10538 return;
10539
10540 nla_put_failure:
10541 genlmsg_cancel(msg, hdr);
10542 nlmsg_free(msg);
10543
10544}
10545
04a773ad
JB		 10546void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10547 struct net_device *netdev, const u8 *bssid,
10548 gfp_t gfp)
10549{
10550 struct sk_buff *msg;
10551 void *hdr;
10552
fd2120ca 10553 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10554 if (!msg)
10555 return;
10556
10557 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10558 if (!hdr) {
10559 nlmsg_free(msg);
10560 return;
10561 }
10562
9360ffd1
DM		 10563 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10564 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10565 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10566 goto nla_put_failure;
04a773ad 10567
3b7b72ee 10568 genlmsg_end(msg, hdr);
04a773ad 10569
68eb5503 10570 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10571 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10572 return;
10573
10574 nla_put_failure:
10575 genlmsg_cancel(msg, hdr);
10576 nlmsg_free(msg);
10577}
10578
947add36
JB		 10579void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10580 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10581{
947add36
JB		 10582 struct wireless_dev *wdev = dev->ieee80211_ptr;
10583 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 10584 struct sk_buff *msg;
10585 void *hdr;
10586
947add36
JB		 10587 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10588 return;
10589
10590 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10591
c93b5e71
JC		 10592 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10593 if (!msg)
10594 return;
10595
10596 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10597 if (!hdr) {
10598 nlmsg_free(msg);
10599 return;
10600 }
10601
9360ffd1 10602 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10603 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10604 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10605 (ie_len && ie &&
10606 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10607 goto nla_put_failure;
c93b5e71 10608
3b7b72ee 10609 genlmsg_end(msg, hdr);
c93b5e71 10610
68eb5503 10611 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10612 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10613 return;
10614
10615 nla_put_failure:
10616 genlmsg_cancel(msg, hdr);
10617 nlmsg_free(msg);
10618}
947add36 10619EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10620
a3b8b056
JM		 10621void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10622 struct net_device *netdev, const u8 *addr,
10623 enum nl80211_key_type key_type, int key_id,
e6d6e342 10624 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10625{
10626 struct sk_buff *msg;
10627 void *hdr;
10628
e6d6e342 10629 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10630 if (!msg)
10631 return;
10632
10633 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10634 if (!hdr) {
10635 nlmsg_free(msg);
10636 return;
10637 }
10638
9360ffd1
DM		 10639 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10640 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10641 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10642 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10643 (key_id != -1 &&
10644 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10645 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10646 goto nla_put_failure;
a3b8b056 10647
3b7b72ee 10648 genlmsg_end(msg, hdr);
a3b8b056 10649
68eb5503 10650 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10651 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10652 return;
10653
10654 nla_put_failure:
10655 genlmsg_cancel(msg, hdr);
10656 nlmsg_free(msg);
10657}
10658
6bad8766
LR		 10659void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10660 struct ieee80211_channel *channel_before,
10661 struct ieee80211_channel *channel_after)
10662{
10663 struct sk_buff *msg;
10664 void *hdr;
10665 struct nlattr *nl_freq;
10666
fd2120ca 10667 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10668 if (!msg)
10669 return;
10670
10671 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10672 if (!hdr) {
10673 nlmsg_free(msg);
10674 return;
10675 }
10676
10677 /*
10678 * Since we are applying the beacon hint to a wiphy we know its
10679 * wiphy_idx is valid
10680 */
9360ffd1
DM		 10681 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10682 goto nla_put_failure;
6bad8766
LR		 10683
10684 /* Before */
10685 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10686 if (!nl_freq)
10687 goto nla_put_failure;
cdc89b97 10688 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10689 goto nla_put_failure;
10690 nla_nest_end(msg, nl_freq);
10691
10692 /* After */
10693 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10694 if (!nl_freq)
10695 goto nla_put_failure;
cdc89b97 10696 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10697 goto nla_put_failure;
10698 nla_nest_end(msg, nl_freq);
10699
3b7b72ee 10700 genlmsg_end(msg, hdr);
6bad8766 10701
463d0183 10702 rcu_read_lock();
68eb5503 10703 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10704 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10705 rcu_read_unlock();
6bad8766
LR		 10706
10707 return;
10708
10709nla_put_failure:
10710 genlmsg_cancel(msg, hdr);
10711 nlmsg_free(msg);
10712}
10713
9588bbd5
JM		 10714static void nl80211_send_remain_on_chan_event(
10715 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10716 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10717 struct ieee80211_channel *chan,
9588bbd5
JM		 10718 unsigned int duration, gfp_t gfp)
10719{
10720 struct sk_buff *msg;
10721 void *hdr;
10722
10723 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10724 if (!msg)
10725 return;
10726
10727 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10728 if (!hdr) {
10729 nlmsg_free(msg);
10730 return;
10731 }
10732
9360ffd1 10733 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10734 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10735 wdev->netdev->ifindex)) ||
00f53350 10736 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10737 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10738 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10739 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10740 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10741 goto nla_put_failure;
9588bbd5 10742
9360ffd1
DM		 10743 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10744 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10745 goto nla_put_failure;
9588bbd5 10746
3b7b72ee 10747 genlmsg_end(msg, hdr);
9588bbd5 10748
68eb5503 10749 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10750 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10751 return;
10752
10753 nla_put_failure:
10754 genlmsg_cancel(msg, hdr);
10755 nlmsg_free(msg);
10756}
10757
947add36
JB		 10758void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10759 struct ieee80211_channel *chan,
10760 unsigned int duration, gfp_t gfp)
9588bbd5 10761{
947add36
JB		 10762 struct wiphy *wiphy = wdev->wiphy;
10763 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10764
10765 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10766 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10767 rdev, wdev, cookie, chan,
42d97a59 10768 duration, gfp);
9588bbd5 10769}
947add36 10770EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10771
947add36
JB		 10772void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10773 struct ieee80211_channel *chan,
10774 gfp_t gfp)
9588bbd5 10775{
947add36
JB		 10776 struct wiphy *wiphy = wdev->wiphy;
10777 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10778
10779 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10780 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10781 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10782}
947add36 10783EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10784
947add36
JB		 10785void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10786 struct station_info *sinfo, gfp_t gfp)
98b62183 10787{
947add36
JB		 10788 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10789 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 10790 struct sk_buff *msg;
10791
947add36
JB		 10792 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10793
58050fce 10794 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10795 if (!msg)
10796 return;
10797
66266b3a
JL		 10798 if (nl80211_send_station(msg, 0, 0, 0,
10799 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10800 nlmsg_free(msg);
10801 return;
10802 }
10803
68eb5503 10804 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10805 NL80211_MCGRP_MLME, gfp);
98b62183 10806}
947add36 10807EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10808
947add36 10809void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10810{
947add36
JB		 10811 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10812 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 10813 struct sk_buff *msg;
10814 void *hdr;
10815
947add36
JB		 10816 trace_cfg80211_del_sta(dev, mac_addr);
10817
58050fce 10818 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10819 if (!msg)
10820 return;
10821
10822 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10823 if (!hdr) {
10824 nlmsg_free(msg);
10825 return;
10826 }
10827
9360ffd1
DM		 10828 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10829 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10830 goto nla_put_failure;
ec15e68b 10831
3b7b72ee 10832 genlmsg_end(msg, hdr);
ec15e68b 10833
68eb5503 10834 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10835 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10836 return;
10837
10838 nla_put_failure:
10839 genlmsg_cancel(msg, hdr);
10840 nlmsg_free(msg);
10841}
947add36 10842EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10843
947add36
JB		 10844void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10845 enum nl80211_connect_failed_reason reason,
10846 gfp_t gfp)
ed44a951 10847{
947add36
JB		 10848 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10849 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 10850 struct sk_buff *msg;
10851 void *hdr;
10852
10853 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10854 if (!msg)
10855 return;
10856
10857 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10858 if (!hdr) {
10859 nlmsg_free(msg);
10860 return;
10861 }
10862
10863 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10864 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10865 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10866 goto nla_put_failure;
10867
10868 genlmsg_end(msg, hdr);
10869
68eb5503 10870 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10871 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10872 return;
10873
10874 nla_put_failure:
10875 genlmsg_cancel(msg, hdr);
10876 nlmsg_free(msg);
10877}
947add36 10878EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10879
b92ab5d8
JB		 10880static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10881 const u8 *addr, gfp_t gfp)
28946da7
JB		 10882{
10883 struct wireless_dev *wdev = dev->ieee80211_ptr;
10884 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10885 struct sk_buff *msg;
10886 void *hdr;
15e47304 10887 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10888
15e47304 10889 if (!nlportid)
28946da7
JB		 10890 return false;
10891
10892 msg = nlmsg_new(100, gfp);
10893 if (!msg)
10894 return true;
10895
b92ab5d8 10896 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10897 if (!hdr) {
10898 nlmsg_free(msg);
10899 return true;
10900 }
10901
9360ffd1
DM		 10902 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10903 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10904 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10905 goto nla_put_failure;
28946da7 10906
9c90a9f6 10907 genlmsg_end(msg, hdr);
15e47304 10908 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10909 return true;
10910
10911 nla_put_failure:
10912 genlmsg_cancel(msg, hdr);
10913 nlmsg_free(msg);
10914 return true;
10915}
10916
947add36
JB		 10917bool cfg80211_rx_spurious_frame(struct net_device *dev,
10918 const u8 *addr, gfp_t gfp)
b92ab5d8 10919{
947add36
JB		 10920 struct wireless_dev *wdev = dev->ieee80211_ptr;
10921 bool ret;
10922
10923 trace_cfg80211_rx_spurious_frame(dev, addr);
10924
10925 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10926 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10927 trace_cfg80211_return_bool(false);
10928 return false;
10929 }
10930 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10931 addr, gfp);
10932 trace_cfg80211_return_bool(ret);
10933 return ret;
b92ab5d8 10934}
947add36 10935EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10936
947add36
JB		 10937bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10938 const u8 *addr, gfp_t gfp)
b92ab5d8 10939{
947add36
JB		 10940 struct wireless_dev *wdev = dev->ieee80211_ptr;
10941 bool ret;
10942
10943 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10944
10945 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10946 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10947 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10948 trace_cfg80211_return_bool(false);
10949 return false;
10950 }
10951 ret = __nl80211_unexpected_frame(dev,
10952 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10953 addr, gfp);
10954 trace_cfg80211_return_bool(ret);
10955 return ret;
b92ab5d8 10956}
947add36 10957EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 10958
2e161f78 10959int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 10960 struct wireless_dev *wdev, u32 nlportid,
804483e9 10961 int freq, int sig_dbm,
19504cf5 10962 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 10963{
71bbc994 10964 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10965 struct sk_buff *msg;
10966 void *hdr;
026331c4
JM		 10967
10968 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10969 if (!msg)
10970 return -ENOMEM;
10971
2e161f78 10972 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 10973 if (!hdr) {
10974 nlmsg_free(msg);
10975 return -ENOMEM;
10976 }
10977
9360ffd1 10978 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10979 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10980 netdev->ifindex)) ||
a838490b 10981 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10982 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10983 (sig_dbm &&
10984 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 10985 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10986 (flags &&
10987 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 10988 goto nla_put_failure;
026331c4 10989
3b7b72ee 10990 genlmsg_end(msg, hdr);
026331c4 10991
15e47304 10992 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 10993
10994 nla_put_failure:
10995 genlmsg_cancel(msg, hdr);
10996 nlmsg_free(msg);
10997 return -ENOBUFS;
10998}
10999
947add36
JB		 11000void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11001 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11002{
947add36
JB		 11003 struct wiphy *wiphy = wdev->wiphy;
11004 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 11005 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11006 struct sk_buff *msg;
11007 void *hdr;
11008
947add36
JB		 11009 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11010
026331c4
JM		 11011 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11012 if (!msg)
11013 return;
11014
2e161f78 11015 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11016 if (!hdr) {
11017 nlmsg_free(msg);
11018 return;
11019 }
11020
9360ffd1 11021 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11022 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11023 netdev->ifindex)) ||
a838490b 11024 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11025 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11026 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11027 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11028 goto nla_put_failure;
026331c4 11029
3b7b72ee 11030 genlmsg_end(msg, hdr);
026331c4 11031
68eb5503 11032 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11033 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11034 return;
11035
11036 nla_put_failure:
11037 genlmsg_cancel(msg, hdr);
11038 nlmsg_free(msg);
11039}
947add36 11040EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11041
947add36
JB		 11042void cfg80211_cqm_rssi_notify(struct net_device *dev,
11043 enum nl80211_cqm_rssi_threshold_event rssi_event,
11044 gfp_t gfp)
d6dc1a38 11045{
947add36
JB		 11046 struct wireless_dev *wdev = dev->ieee80211_ptr;
11047 struct wiphy *wiphy = wdev->wiphy;
11048 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 11049 struct sk_buff *msg;
11050 struct nlattr *pinfoattr;
11051 void *hdr;
11052
947add36
JB		 11053 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11054
58050fce 11055 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11056 if (!msg)
11057 return;
11058
11059 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11060 if (!hdr) {
11061 nlmsg_free(msg);
11062 return;
11063 }
11064
9360ffd1 11065 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11066 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11067 goto nla_put_failure;
d6dc1a38
JO		 11068
11069 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11070 if (!pinfoattr)
11071 goto nla_put_failure;
11072
9360ffd1
DM		 11073 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11074 rssi_event))
11075 goto nla_put_failure;
d6dc1a38
JO		 11076
11077 nla_nest_end(msg, pinfoattr);
11078
3b7b72ee 11079 genlmsg_end(msg, hdr);
d6dc1a38 11080
68eb5503 11081 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11082 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11083 return;
11084
11085 nla_put_failure:
11086 genlmsg_cancel(msg, hdr);
11087 nlmsg_free(msg);
11088}
947add36 11089EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11090
947add36
JB		 11091static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11092 struct net_device *netdev, const u8 *bssid,
11093 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11094{
11095 struct sk_buff *msg;
11096 struct nlattr *rekey_attr;
11097 void *hdr;
11098
58050fce 11099 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11100 if (!msg)
11101 return;
11102
11103 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11104 if (!hdr) {
11105 nlmsg_free(msg);
11106 return;
11107 }
11108
9360ffd1
DM		 11109 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11110 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11111 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11112 goto nla_put_failure;
e5497d76
JB		 11113
11114 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11115 if (!rekey_attr)
11116 goto nla_put_failure;
11117
9360ffd1
DM		 11118 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11119 NL80211_REPLAY_CTR_LEN, replay_ctr))
11120 goto nla_put_failure;
e5497d76
JB		 11121
11122 nla_nest_end(msg, rekey_attr);
11123
3b7b72ee 11124 genlmsg_end(msg, hdr);
e5497d76 11125
68eb5503 11126 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11127 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11128 return;
11129
11130 nla_put_failure:
11131 genlmsg_cancel(msg, hdr);
11132 nlmsg_free(msg);
11133}
11134
947add36
JB		 11135void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11136 const u8 *replay_ctr, gfp_t gfp)
11137{
11138 struct wireless_dev *wdev = dev->ieee80211_ptr;
11139 struct wiphy *wiphy = wdev->wiphy;
11140 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11141
11142 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11143 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11144}
11145EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11146
11147static void
11148nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11149 struct net_device *netdev, int index,
11150 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11151{
11152 struct sk_buff *msg;
11153 struct nlattr *attr;
11154 void *hdr;
11155
58050fce 11156 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11157 if (!msg)
11158 return;
11159
11160 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11161 if (!hdr) {
11162 nlmsg_free(msg);
11163 return;
11164 }
11165
9360ffd1
DM		 11166 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11167 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11168 goto nla_put_failure;
c9df56b4
JM		 11169
11170 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11171 if (!attr)
11172 goto nla_put_failure;
11173
9360ffd1
DM		 11174 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11175 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11176 (preauth &&
11177 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11178 goto nla_put_failure;
c9df56b4
JM		 11179
11180 nla_nest_end(msg, attr);
11181
3b7b72ee 11182 genlmsg_end(msg, hdr);
c9df56b4 11183
68eb5503 11184 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11185 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11186 return;
11187
11188 nla_put_failure:
11189 genlmsg_cancel(msg, hdr);
11190 nlmsg_free(msg);
11191}
11192
947add36
JB		 11193void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11194 const u8 *bssid, bool preauth, gfp_t gfp)
11195{
11196 struct wireless_dev *wdev = dev->ieee80211_ptr;
11197 struct wiphy *wiphy = wdev->wiphy;
11198 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11199
11200 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11201 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11202}
11203EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11204
11205static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11206 struct net_device *netdev,
11207 struct cfg80211_chan_def *chandef,
11208 gfp_t gfp)
5314526b
TP		 11209{
11210 struct sk_buff *msg;
11211 void *hdr;
11212
58050fce 11213 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11214 if (!msg)
11215 return;
11216
11217 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11218 if (!hdr) {
11219 nlmsg_free(msg);
11220 return;
11221 }
11222
683b6d3b
JB		 11223 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11224 goto nla_put_failure;
11225
11226 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11227 goto nla_put_failure;
5314526b
TP		 11228
11229 genlmsg_end(msg, hdr);
11230
68eb5503 11231 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11232 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11233 return;
11234
11235 nla_put_failure:
11236 genlmsg_cancel(msg, hdr);
11237 nlmsg_free(msg);
11238}
11239
947add36
JB		 11240void cfg80211_ch_switch_notify(struct net_device *dev,
11241 struct cfg80211_chan_def *chandef)
84f10708 11242{
947add36
JB		 11243 struct wireless_dev *wdev = dev->ieee80211_ptr;
11244 struct wiphy *wiphy = wdev->wiphy;
11245 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11246
e487eaeb 11247 ASSERT_WDEV_LOCK(wdev);
947add36 11248
e487eaeb 11249 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11250
11251 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11252 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11253 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11254 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11255 return;
947add36 11256
9e0e2961 11257 wdev->chandef = *chandef;
96f55f12 11258 wdev->preset_chandef = *chandef;
947add36 11259 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11260}
11261EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11262
11263void cfg80211_cqm_txe_notify(struct net_device *dev,
11264 const u8 *peer, u32 num_packets,
11265 u32 rate, u32 intvl, gfp_t gfp)
11266{
11267 struct wireless_dev *wdev = dev->ieee80211_ptr;
11268 struct wiphy *wiphy = wdev->wiphy;
11269 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 11270 struct sk_buff *msg;
11271 struct nlattr *pinfoattr;
11272 void *hdr;
11273
11274 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11275 if (!msg)
11276 return;
11277
11278 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11279 if (!hdr) {
11280 nlmsg_free(msg);
11281 return;
11282 }
11283
11284 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11285 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11286 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11287 goto nla_put_failure;
11288
11289 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11290 if (!pinfoattr)
11291 goto nla_put_failure;
11292
11293 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11294 goto nla_put_failure;
11295
11296 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11297 goto nla_put_failure;
11298
11299 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11300 goto nla_put_failure;
11301
11302 nla_nest_end(msg, pinfoattr);
11303
11304 genlmsg_end(msg, hdr);
11305
68eb5503 11306 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11307 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11308 return;
11309
11310 nla_put_failure:
11311 genlmsg_cancel(msg, hdr);
11312 nlmsg_free(msg);
11313}
947add36 11314EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11315
04f39047
SW		 11316void
11317nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11318 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11319 enum nl80211_radar_event event,
11320 struct net_device *netdev, gfp_t gfp)
11321{
11322 struct sk_buff *msg;
11323 void *hdr;
11324
11325 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11326 if (!msg)
11327 return;
11328
11329 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11330 if (!hdr) {
11331 nlmsg_free(msg);
11332 return;
11333 }
11334
11335 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11336 goto nla_put_failure;
11337
11338 /* NOP and radar events don't need a netdev parameter */
11339 if (netdev) {
11340 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11341
11342 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11343 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11344 goto nla_put_failure;
11345 }
11346
11347 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11348 goto nla_put_failure;
11349
11350 if (nl80211_send_chandef(msg, chandef))
11351 goto nla_put_failure;
11352
9c90a9f6 11353 genlmsg_end(msg, hdr);
04f39047 11354
68eb5503 11355 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11356 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11357 return;
11358
11359 nla_put_failure:
11360 genlmsg_cancel(msg, hdr);
11361 nlmsg_free(msg);
11362}
11363
947add36
JB		 11364void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11365 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11366{
947add36
JB		 11367 struct wireless_dev *wdev = dev->ieee80211_ptr;
11368 struct wiphy *wiphy = wdev->wiphy;
11369 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 11370 struct sk_buff *msg;
11371 struct nlattr *pinfoattr;
11372 void *hdr;
11373
947add36
JB		 11374 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11375
58050fce 11376 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11377 if (!msg)
11378 return;
11379
11380 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11381 if (!hdr) {
11382 nlmsg_free(msg);
11383 return;
11384 }
11385
9360ffd1 11386 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11387 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11388 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11389 goto nla_put_failure;
c063dbf5
JB		 11390
11391 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11392 if (!pinfoattr)
11393 goto nla_put_failure;
11394
9360ffd1
DM		 11395 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11396 goto nla_put_failure;
c063dbf5
JB		 11397
11398 nla_nest_end(msg, pinfoattr);
11399
3b7b72ee 11400 genlmsg_end(msg, hdr);
c063dbf5 11401
68eb5503 11402 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11403 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11404 return;
11405
11406 nla_put_failure:
11407 genlmsg_cancel(msg, hdr);
11408 nlmsg_free(msg);
11409}
947add36 11410EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11411
7f6cf311
JB		 11412void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11413 u64 cookie, bool acked, gfp_t gfp)
11414{
11415 struct wireless_dev *wdev = dev->ieee80211_ptr;
11416 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11417 struct sk_buff *msg;
11418 void *hdr;
7f6cf311 11419
4ee3e063
BL		 11420 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11421
58050fce 11422 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11423
7f6cf311
JB		 11424 if (!msg)
11425 return;
11426
11427 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11428 if (!hdr) {
11429 nlmsg_free(msg);
11430 return;
11431 }
11432
9360ffd1
DM		 11433 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11434 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11435 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11436 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11437 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11438 goto nla_put_failure;
7f6cf311 11439
9c90a9f6 11440 genlmsg_end(msg, hdr);
7f6cf311 11441
68eb5503 11442 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11443 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11444 return;
11445
11446 nla_put_failure:
11447 genlmsg_cancel(msg, hdr);
11448 nlmsg_free(msg);
11449}
11450EXPORT_SYMBOL(cfg80211_probe_status);
11451
5e760230
JB		 11452void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11453 const u8 *frame, size_t len,
37c73b5f 11454 int freq, int sig_dbm)
5e760230
JB		 11455{
11456 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11457 struct sk_buff *msg;
11458 void *hdr;
37c73b5f 11459 struct cfg80211_beacon_registration *reg;
5e760230 11460
4ee3e063
BL		 11461 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11462
37c73b5f
BG		 11463 spin_lock_bh(&rdev->beacon_registrations_lock);
11464 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11465 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11466 if (!msg) {
11467 spin_unlock_bh(&rdev->beacon_registrations_lock);
11468 return;
11469 }
5e760230 11470
37c73b5f
BG		 11471 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11472 if (!hdr)
11473 goto nla_put_failure;
5e760230 11474
37c73b5f
BG		 11475 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11476 (freq &&
11477 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11478 (sig_dbm &&
11479 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11480 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11481 goto nla_put_failure;
5e760230 11482
37c73b5f 11483 genlmsg_end(msg, hdr);
5e760230 11484
37c73b5f
BG		 11485 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11486 }
11487 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11488 return;
11489
11490 nla_put_failure:
37c73b5f
BG		 11491 spin_unlock_bh(&rdev->beacon_registrations_lock);
11492 if (hdr)
11493 genlmsg_cancel(msg, hdr);
5e760230
JB		 11494 nlmsg_free(msg);
11495}
11496EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11497
cd8f7cb4
JB		 11498#ifdef CONFIG_PM
11499void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11500 struct cfg80211_wowlan_wakeup *wakeup,
11501 gfp_t gfp)
11502{
11503 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11504 struct sk_buff *msg;
11505 void *hdr;
9c90a9f6 11506 int size = 200;
cd8f7cb4
JB		 11507
11508 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11509
11510 if (wakeup)
11511 size += wakeup->packet_present_len;
11512
11513 msg = nlmsg_new(size, gfp);
11514 if (!msg)
11515 return;
11516
11517 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11518 if (!hdr)
11519 goto free_msg;
11520
11521 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11522 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11523 goto free_msg;
11524
11525 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11526 wdev->netdev->ifindex))
11527 goto free_msg;
11528
11529 if (wakeup) {
11530 struct nlattr *reasons;
11531
11532 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11533 if (!reasons)
11534 goto free_msg;
cd8f7cb4
JB		 11535
11536 if (wakeup->disconnect &&
11537 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11538 goto free_msg;
11539 if (wakeup->magic_pkt &&
11540 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11541 goto free_msg;
11542 if (wakeup->gtk_rekey_failure &&
11543 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11544 goto free_msg;
11545 if (wakeup->eap_identity_req &&
11546 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11547 goto free_msg;
11548 if (wakeup->four_way_handshake &&
11549 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11550 goto free_msg;
11551 if (wakeup->rfkill_release &&
11552 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11553 goto free_msg;
11554
11555 if (wakeup->pattern_idx >= 0 &&
11556 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11557 wakeup->pattern_idx))
11558 goto free_msg;
11559
ae917c9f
JB		 11560 if (wakeup->tcp_match &&
11561 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11562 goto free_msg;
2a0e047e 11563
ae917c9f
JB		 11564 if (wakeup->tcp_connlost &&
11565 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11566 goto free_msg;
2a0e047e 11567
ae917c9f
JB		 11568 if (wakeup->tcp_nomoretokens &&
11569 nla_put_flag(msg,
11570 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11571 goto free_msg;
2a0e047e 11572
cd8f7cb4
JB		 11573 if (wakeup->packet) {
11574 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11575 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11576
11577 if (!wakeup->packet_80211) {
11578 pkt_attr =
11579 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11580 len_attr =
11581 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11582 }
11583
11584 if (wakeup->packet_len &&
11585 nla_put_u32(msg, len_attr, wakeup->packet_len))
11586 goto free_msg;
11587
11588 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11589 wakeup->packet))
11590 goto free_msg;
11591 }
11592
11593 nla_nest_end(msg, reasons);
11594 }
11595
9c90a9f6 11596 genlmsg_end(msg, hdr);
cd8f7cb4 11597
68eb5503 11598 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11599 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11600 return;
11601
11602 free_msg:
11603 nlmsg_free(msg);
11604}
11605EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11606#endif
11607
3475b094
JM		 11608void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11609 enum nl80211_tdls_operation oper,
11610 u16 reason_code, gfp_t gfp)
11611{
11612 struct wireless_dev *wdev = dev->ieee80211_ptr;
11613 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11614 struct sk_buff *msg;
11615 void *hdr;
3475b094
JM		 11616
11617 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11618 reason_code);
11619
11620 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11621 if (!msg)
11622 return;
11623
11624 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11625 if (!hdr) {
11626 nlmsg_free(msg);
11627 return;
11628 }
11629
11630 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11631 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11632 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11633 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11634 (reason_code > 0 &&
11635 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11636 goto nla_put_failure;
11637
9c90a9f6 11638 genlmsg_end(msg, hdr);
3475b094 11639
68eb5503 11640 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11641 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11642 return;
11643
11644 nla_put_failure:
11645 genlmsg_cancel(msg, hdr);
11646 nlmsg_free(msg);
11647}
11648EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11649
026331c4
JM		 11650static int nl80211_netlink_notify(struct notifier_block * nb,
11651 unsigned long state,
11652 void *_notify)
11653{
11654 struct netlink_notify *notify = _notify;
11655 struct cfg80211_registered_device *rdev;
11656 struct wireless_dev *wdev;
37c73b5f 11657 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11658
11659 if (state != NETLINK_URELEASE)
11660 return NOTIFY_DONE;
11661
11662 rcu_read_lock();
11663
5e760230 11664 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 11665 bool schedule_destroy_work = false;
11666
11667 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 11668 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 11669
78f22b6a
JB		 11670 if (wdev->owner_nlportid == notify->portid)
11671 schedule_destroy_work = true;
11672 }
11673
37c73b5f
BG		 11674 spin_lock_bh(&rdev->beacon_registrations_lock);
11675 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11676 list) {
11677 if (reg->nlportid == notify->portid) {
11678 list_del(&reg->list);
11679 kfree(reg);
11680 break;
11681 }
11682 }
11683 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 11684
11685 if (schedule_destroy_work) {
11686 struct cfg80211_iface_destroy *destroy;
11687
11688 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11689 if (destroy) {
11690 destroy->nlportid = notify->portid;
11691 spin_lock(&rdev->destroy_list_lock);
11692 list_add(&destroy->list, &rdev->destroy_list);
11693 spin_unlock(&rdev->destroy_list_lock);
11694 schedule_work(&rdev->destroy_work);
11695 }
11696 }
5e760230 11697 }
026331c4
JM		 11698
11699 rcu_read_unlock();
11700
11701 return NOTIFY_DONE;
11702}
11703
11704static struct notifier_block nl80211_netlink_notifier = {
11705 .notifier_call = nl80211_netlink_notify,
11706};
11707
355199e0
JM		 11708void cfg80211_ft_event(struct net_device *netdev,
11709 struct cfg80211_ft_event_params *ft_event)
11710{
11711 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11712 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11713 struct sk_buff *msg;
11714 void *hdr;
355199e0
JM		 11715
11716 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11717
11718 if (!ft_event->target_ap)
11719 return;
11720
11721 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11722 if (!msg)
11723 return;
11724
11725 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11726 if (!hdr)
11727 goto out;
355199e0 11728
ae917c9f
JB		 11729 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11730 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11731 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11732 goto out;
355199e0 11733
ae917c9f
JB		 11734 if (ft_event->ies &&
11735 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11736 goto out;
11737 if (ft_event->ric_ies &&
11738 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11739 ft_event->ric_ies))
11740 goto out;
355199e0 11741
9c90a9f6 11742 genlmsg_end(msg, hdr);
355199e0 11743
68eb5503 11744 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11745 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11746 return;
11747 out:
11748 nlmsg_free(msg);
355199e0
JM		 11749}
11750EXPORT_SYMBOL(cfg80211_ft_event);
11751
5de17984
AS		 11752void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11753{
11754 struct cfg80211_registered_device *rdev;
11755 struct sk_buff *msg;
11756 void *hdr;
11757 u32 nlportid;
11758
11759 rdev = wiphy_to_dev(wdev->wiphy);
11760 if (!rdev->crit_proto_nlportid)
11761 return;
11762
11763 nlportid = rdev->crit_proto_nlportid;
11764 rdev->crit_proto_nlportid = 0;
11765
11766 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11767 if (!msg)
11768 return;
11769
11770 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11771 if (!hdr)
11772 goto nla_put_failure;
11773
11774 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11775 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11776 goto nla_put_failure;
11777
11778 genlmsg_end(msg, hdr);
11779
11780 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11781 return;
11782
11783 nla_put_failure:
11784 if (hdr)
11785 genlmsg_cancel(msg, hdr);
11786 nlmsg_free(msg);
11787
11788}
11789EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11790
348baf0e
JB		 11791void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11792{
11793 struct wiphy *wiphy = wdev->wiphy;
11794 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11795 struct sk_buff *msg;
11796 void *hdr;
11797
11798 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11799 if (!msg)
11800 return;
11801
11802 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11803 if (!hdr)
11804 goto out;
11805
11806 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11807 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11808 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11809 goto out;
11810
11811 genlmsg_end(msg, hdr);
11812
11813 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11814 NL80211_MCGRP_MLME, GFP_KERNEL);
11815 return;
11816 out:
11817 nlmsg_free(msg);
11818}
11819
55682965
JB		 11820/* initialisation/exit functions */
11821
11822int nl80211_init(void)
11823{
0d63cbb5 11824 int err;
55682965 11825
2a94fe48
JB		 11826 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11827 nl80211_mcgrps);
55682965
JB		 11828 if (err)
11829 return err;
11830
026331c4
JM		 11831 err = netlink_register_notifier(&nl80211_netlink_notifier);
11832 if (err)
11833 goto err_out;
11834
55682965
JB		 11835 return 0;
11836 err_out:
11837 genl_unregister_family(&nl80211_fam);
11838 return err;
11839}
11840
11841void nl80211_exit(void)
11842{
026331c4 11843 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11844 genl_unregister_family(&nl80211_fam);
11845}
Linux 6.x block layer and io_uring tree(s)