]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - net/wireless/nl80211.c
projects / mirror_ubuntu-bionic-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
mac80211: add helper functions for tracking P2P NoA state
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
f84f771d 33static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 34 struct genl_info *info);
f84f771d 35static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
fb4e1568
MH		 40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
55682965 44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
2a94fe48
JB		 50/* multicast groups */
51enum nl80211_multicast_groups {
52 NL80211_MCGRP_CONFIG,
53 NL80211_MCGRP_SCAN,
54 NL80211_MCGRP_REGULATORY,
55 NL80211_MCGRP_MLME,
56 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
57};
58
59static const struct genl_multicast_group nl80211_mcgrps[] = {
60 [NL80211_MCGRP_CONFIG] = { .name = "config", },
61 [NL80211_MCGRP_SCAN] = { .name = "scan", },
62 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
63 [NL80211_MCGRP_MLME] = { .name = "mlme", },
64#ifdef CONFIG_NL80211_TESTMODE
65 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
66#endif
67};
68
89a54e48
JB		 69/* returns ERR_PTR values */
70static struct wireless_dev *
71__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 72{
89a54e48
JB		 73 struct cfg80211_registered_device *rdev;
74 struct wireless_dev *result = NULL;
75 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
76 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
77 u64 wdev_id;
78 int wiphy_idx = -1;
79 int ifidx = -1;
55682965 80
5fe231e8 81 ASSERT_RTNL();
55682965 82
89a54e48
JB		 83 if (!have_ifidx && !have_wdev_id)
84 return ERR_PTR(-EINVAL);
55682965 85
89a54e48
JB		 86 if (have_ifidx)
87 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
88 if (have_wdev_id) {
89 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
90 wiphy_idx = wdev_id >> 32;
55682965
JB		 91 }
92
89a54e48
JB		 93 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
94 struct wireless_dev *wdev;
95
96 if (wiphy_net(&rdev->wiphy) != netns)
97 continue;
98
99 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
100 continue;
101
89a54e48
JB		 102 list_for_each_entry(wdev, &rdev->wdev_list, list) {
103 if (have_ifidx && wdev->netdev &&
104 wdev->netdev->ifindex == ifidx) {
105 result = wdev;
106 break;
107 }
108 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
109 result = wdev;
110 break;
111 }
112 }
89a54e48
JB		 113
114 if (result)
115 break;
116 }
117
118 if (result)
119 return result;
120 return ERR_PTR(-ENODEV);
55682965
JB		 121}
122
a9455408 123static struct cfg80211_registered_device *
878d9ec7 124__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 125{
7fee4778
JB		 126 struct cfg80211_registered_device *rdev = NULL, *tmp;
127 struct net_device *netdev;
a9455408 128
5fe231e8 129 ASSERT_RTNL();
a9455408 130
878d9ec7 131 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 132 !attrs[NL80211_ATTR_IFINDEX] &&
133 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 134 return ERR_PTR(-EINVAL);
135
878d9ec7 136 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 137 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 138 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 139
89a54e48
JB		 140 if (attrs[NL80211_ATTR_WDEV]) {
141 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
142 struct wireless_dev *wdev;
143 bool found = false;
144
145 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
146 if (tmp) {
147 /* make sure wdev exists */
89a54e48
JB		 148 list_for_each_entry(wdev, &tmp->wdev_list, list) {
149 if (wdev->identifier != (u32)wdev_id)
150 continue;
151 found = true;
152 break;
153 }
89a54e48
JB		 154
155 if (!found)
156 tmp = NULL;
157
158 if (rdev && tmp != rdev)
159 return ERR_PTR(-EINVAL);
160 rdev = tmp;
161 }
162 }
163
878d9ec7
JB		 164 if (attrs[NL80211_ATTR_IFINDEX]) {
165 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 166 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 167 if (netdev) {
168 if (netdev->ieee80211_ptr)
169 tmp = wiphy_to_dev(
170 netdev->ieee80211_ptr->wiphy);
171 else
172 tmp = NULL;
173
174 dev_put(netdev);
175
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 },
55682965
JB		 383};
384
e31b8213 385/* policy for the key attributes */
b54452b0 386static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 387 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 388 [NL80211_KEY_IDX] = { .type = NLA_U8 },
389 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 390 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 391 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
392 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 393 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 394 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
395};
396
397/* policy for the key default flags */
398static const struct nla_policy
399nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
400 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
401 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 402};
403
ff1b6e69
JB		 404/* policy for WoWLAN attributes */
405static const struct nla_policy
406nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
407 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
408 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
409 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
410 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 411 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
412 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
413 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
414 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 415 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
416};
417
418static const struct nla_policy
419nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
420 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
421 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
422 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
423 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
424 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
425 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
426 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
427 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
428 },
429 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
430 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
431 },
432 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
433 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
434 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 435};
436
be29b99a
AK		 437/* policy for coalesce rule attributes */
438static const struct nla_policy
439nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
440 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
441 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
442 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
443};
444
e5497d76
JB		 445/* policy for GTK rekey offload attributes */
446static const struct nla_policy
447nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
448 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
449 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
450 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
451};
452
a1f1c21c
LC		 453static const struct nla_policy
454nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 455 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 456 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 457 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 458};
459
97990a06
JB		 460static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
461 struct netlink_callback *cb,
462 struct cfg80211_registered_device **rdev,
463 struct wireless_dev **wdev)
a043897a 464{
97990a06 465 int err;
a043897a 466
97990a06 467 rtnl_lock();
a043897a 468
97990a06
JB		 469 if (!cb->args[0]) {
470 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
471 nl80211_fam.attrbuf, nl80211_fam.maxattr,
472 nl80211_policy);
473 if (err)
474 goto out_unlock;
67748893 475
97990a06
JB		 476 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
477 nl80211_fam.attrbuf);
478 if (IS_ERR(*wdev)) {
479 err = PTR_ERR(*wdev);
480 goto out_unlock;
481 }
482 *rdev = wiphy_to_dev((*wdev)->wiphy);
c319d50b
JB		 483 /* 0 is the first index - add 1 to parse only once */
484 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 485 cb->args[1] = (*wdev)->identifier;
486 } else {
c319d50b
JB		 487 /* subtract the 1 again here */
488 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 489 struct wireless_dev *tmp;
67748893 490
97990a06
JB		 491 if (!wiphy) {
492 err = -ENODEV;
493 goto out_unlock;
494 }
495 *rdev = wiphy_to_dev(wiphy);
496 *wdev = NULL;
67748893 497
97990a06
JB		 498 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
499 if (tmp->identifier == cb->args[1]) {
500 *wdev = tmp;
501 break;
502 }
503 }
67748893 504
97990a06
JB		 505 if (!*wdev) {
506 err = -ENODEV;
507 goto out_unlock;
508 }
67748893
JB		 509 }
510
67748893 511 return 0;
97990a06 512 out_unlock:
67748893
JB		 513 rtnl_unlock();
514 return err;
515}
516
97990a06 517static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 518{
67748893
JB		 519 rtnl_unlock();
520}
521
f4a11bb0
JB		 522/* IE validation */
523static bool is_valid_ie_attr(const struct nlattr *attr)
524{
525 const u8 *pos;
526 int len;
527
528 if (!attr)
529 return true;
530
531 pos = nla_data(attr);
532 len = nla_len(attr);
533
534 while (len) {
535 u8 elemlen;
536
537 if (len < 2)
538 return false;
539 len -= 2;
540
541 elemlen = pos[1];
542 if (elemlen > len)
543 return false;
544
545 len -= elemlen;
546 pos += 2 + elemlen;
547 }
548
549 return true;
550}
551
55682965 552/* message building helper */
15e47304 553static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 554 int flags, u8 cmd)
555{
556 /* since there is no private header just add the generic one */
15e47304 557 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 558}
559
5dab3b8a 560static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 561 struct ieee80211_channel *chan,
562 bool large)
5dab3b8a 563{
9360ffd1
DM		 564 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
565 chan->center_freq))
566 goto nla_put_failure;
5dab3b8a 567
9360ffd1
DM		 568 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
569 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
570 goto nla_put_failure;
8fe02e16
LR		 571 if (chan->flags & IEEE80211_CHAN_NO_IR) {
572 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
573 goto nla_put_failure;
574 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
575 goto nla_put_failure;
576 }
cdc89b97
JB		 577 if (chan->flags & IEEE80211_CHAN_RADAR) {
578 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
579 goto nla_put_failure;
580 if (large) {
581 u32 time;
582
583 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
584
585 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
586 chan->dfs_state))
587 goto nla_put_failure;
588 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
589 time))
590 goto nla_put_failure;
591 }
592 }
5dab3b8a 593
fe1abafd
JB		 594 if (large) {
595 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
596 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
597 goto nla_put_failure;
598 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
599 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
600 goto nla_put_failure;
601 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
602 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
603 goto nla_put_failure;
604 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
605 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
606 goto nla_put_failure;
607 }
608
9360ffd1
DM		 609 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
610 DBM_TO_MBM(chan->max_power)))
611 goto nla_put_failure;
5dab3b8a
LR		 612
613 return 0;
614
615 nla_put_failure:
616 return -ENOBUFS;
617}
618
55682965
JB		 619/* netlink command implementations */
620
b9454e83
JB		 621struct key_parse {
622 struct key_params p;
623 int idx;
e31b8213 624 int type;
b9454e83 625 bool def, defmgmt;
dbd2fd65 626 bool def_uni, def_multi;
b9454e83
JB		 627};
628
629static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
630{
631 struct nlattr *tb[NL80211_KEY_MAX + 1];
632 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
633 nl80211_key_policy);
634 if (err)
635 return err;
636
637 k->def = !!tb[NL80211_KEY_DEFAULT];
638 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
639
dbd2fd65
JB		 640 if (k->def) {
641 k->def_uni = true;
642 k->def_multi = true;
643 }
644 if (k->defmgmt)
645 k->def_multi = true;
646
b9454e83
JB		 647 if (tb[NL80211_KEY_IDX])
648 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
649
650 if (tb[NL80211_KEY_DATA]) {
651 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
652 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
653 }
654
655 if (tb[NL80211_KEY_SEQ]) {
656 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
657 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
658 }
659
660 if (tb[NL80211_KEY_CIPHER])
661 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
662
e31b8213
JB		 663 if (tb[NL80211_KEY_TYPE]) {
664 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
665 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
666 return -EINVAL;
667 }
668
dbd2fd65
JB		 669 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
670 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 671 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
672 tb[NL80211_KEY_DEFAULT_TYPES],
673 nl80211_key_default_policy);
dbd2fd65
JB		 674 if (err)
675 return err;
676
677 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
678 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
679 }
680
b9454e83
JB		 681 return 0;
682}
683
684static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
685{
686 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
687 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
688 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
689 }
690
691 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
692 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
693 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
694 }
695
696 if (info->attrs[NL80211_ATTR_KEY_IDX])
697 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
698
699 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
700 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
701
702 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
703 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
704
dbd2fd65
JB		 705 if (k->def) {
706 k->def_uni = true;
707 k->def_multi = true;
708 }
709 if (k->defmgmt)
710 k->def_multi = true;
711
e31b8213
JB		 712 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
713 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
714 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
715 return -EINVAL;
716 }
717
dbd2fd65
JB		 718 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
719 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
720 int err = nla_parse_nested(
721 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
722 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
723 nl80211_key_default_policy);
724 if (err)
725 return err;
726
727 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
728 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
729 }
730
b9454e83
JB		 731 return 0;
732}
733
734static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
735{
736 int err;
737
738 memset(k, 0, sizeof(*k));
739 k->idx = -1;
e31b8213 740 k->type = -1;
b9454e83
JB		 741
742 if (info->attrs[NL80211_ATTR_KEY])
743 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
744 else
745 err = nl80211_parse_key_old(info, k);
746
747 if (err)
748 return err;
749
750 if (k->def && k->defmgmt)
751 return -EINVAL;
752
dbd2fd65
JB		 753 if (k->defmgmt) {
754 if (k->def_uni || !k->def_multi)
755 return -EINVAL;
756 }
757
b9454e83
JB		 758 if (k->idx != -1) {
759 if (k->defmgmt) {
760 if (k->idx < 4 || k->idx > 5)
761 return -EINVAL;
762 } else if (k->def) {
763 if (k->idx < 0 || k->idx > 3)
764 return -EINVAL;
765 } else {
766 if (k->idx < 0 || k->idx > 5)
767 return -EINVAL;
768 }
769 }
770
771 return 0;
772}
773
fffd0934
JB		 774static struct cfg80211_cached_keys *
775nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 776 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 777{
778 struct key_parse parse;
779 struct nlattr *key;
780 struct cfg80211_cached_keys *result;
781 int rem, err, def = 0;
782
783 result = kzalloc(sizeof(*result), GFP_KERNEL);
784 if (!result)
785 return ERR_PTR(-ENOMEM);
786
787 result->def = -1;
788 result->defmgmt = -1;
789
790 nla_for_each_nested(key, keys, rem) {
791 memset(&parse, 0, sizeof(parse));
792 parse.idx = -1;
793
794 err = nl80211_parse_key_new(key, &parse);
795 if (err)
796 goto error;
797 err = -EINVAL;
798 if (!parse.p.key)
799 goto error;
800 if (parse.idx < 0 || parse.idx > 4)
801 goto error;
802 if (parse.def) {
803 if (def)
804 goto error;
805 def = 1;
806 result->def = parse.idx;
dbd2fd65
JB		 807 if (!parse.def_uni || !parse.def_multi)
808 goto error;
fffd0934
JB		 809 } else if (parse.defmgmt)
810 goto error;
811 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 812 parse.idx, false, NULL);
fffd0934
JB		 813 if (err)
814 goto error;
815 result->params[parse.idx].cipher = parse.p.cipher;
816 result->params[parse.idx].key_len = parse.p.key_len;
817 result->params[parse.idx].key = result->data[parse.idx];
818 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 819
820 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
821 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
822 if (no_ht)
823 *no_ht = true;
824 }
fffd0934
JB		 825 }
826
827 return result;
828 error:
829 kfree(result);
830 return ERR_PTR(err);
831}
832
833static int nl80211_key_allowed(struct wireless_dev *wdev)
834{
835 ASSERT_WDEV_LOCK(wdev);
836
fffd0934
JB		 837 switch (wdev->iftype) {
838 case NL80211_IFTYPE_AP:
839 case NL80211_IFTYPE_AP_VLAN:
074ac8df 840 case NL80211_IFTYPE_P2P_GO:
ff973af7 841 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 842 break;
843 case NL80211_IFTYPE_ADHOC:
fffd0934 844 case NL80211_IFTYPE_STATION:
074ac8df 845 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 846 if (!wdev->current_bss)
fffd0934
JB		 847 return -ENOLINK;
848 break;
849 default:
850 return -EINVAL;
851 }
852
853 return 0;
854}
855
7527a782
JB		 856static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
857{
858 struct nlattr *nl_modes = nla_nest_start(msg, attr);
859 int i;
860
861 if (!nl_modes)
862 goto nla_put_failure;
863
864 i = 0;
865 while (ifmodes) {
9360ffd1
DM		 866 if ((ifmodes & 1) && nla_put_flag(msg, i))
867 goto nla_put_failure;
7527a782
JB		 868 ifmodes >>= 1;
869 i++;
870 }
871
872 nla_nest_end(msg, nl_modes);
873 return 0;
874
875nla_put_failure:
876 return -ENOBUFS;
877}
878
879static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 880 struct sk_buff *msg,
881 bool large)
7527a782
JB		 882{
883 struct nlattr *nl_combis;
884 int i, j;
885
886 nl_combis = nla_nest_start(msg,
887 NL80211_ATTR_INTERFACE_COMBINATIONS);
888 if (!nl_combis)
889 goto nla_put_failure;
890
891 for (i = 0; i < wiphy->n_iface_combinations; i++) {
892 const struct ieee80211_iface_combination *c;
893 struct nlattr *nl_combi, *nl_limits;
894
895 c = &wiphy->iface_combinations[i];
896
897 nl_combi = nla_nest_start(msg, i + 1);
898 if (!nl_combi)
899 goto nla_put_failure;
900
901 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
902 if (!nl_limits)
903 goto nla_put_failure;
904
905 for (j = 0; j < c->n_limits; j++) {
906 struct nlattr *nl_limit;
907
908 nl_limit = nla_nest_start(msg, j + 1);
909 if (!nl_limit)
910 goto nla_put_failure;
9360ffd1
DM		 911 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
912 c->limits[j].max))
913 goto nla_put_failure;
7527a782
JB		 914 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
915 c->limits[j].types))
916 goto nla_put_failure;
917 nla_nest_end(msg, nl_limit);
918 }
919
920 nla_nest_end(msg, nl_limits);
921
9360ffd1
DM		 922 if (c->beacon_int_infra_match &&
923 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
924 goto nla_put_failure;
925 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
926 c->num_different_channels) ||
927 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
928 c->max_interfaces))
929 goto nla_put_failure;
cdc89b97
JB		 930 if (large &&
931 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
932 c->radar_detect_widths))
933 goto nla_put_failure;
7527a782
JB		 934
935 nla_nest_end(msg, nl_combi);
936 }
937
938 nla_nest_end(msg, nl_combis);
939
940 return 0;
941nla_put_failure:
942 return -ENOBUFS;
943}
944
3713b4e3 945#ifdef CONFIG_PM
b56cf720
JB		 946static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
947 struct sk_buff *msg)
948{
964dc9e2 949 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 950 struct nlattr *nl_tcp;
951
952 if (!tcp)
953 return 0;
954
955 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
956 if (!nl_tcp)
957 return -ENOBUFS;
958
959 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
960 tcp->data_payload_max))
961 return -ENOBUFS;
962
963 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
964 tcp->data_payload_max))
965 return -ENOBUFS;
966
967 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
968 return -ENOBUFS;
969
970 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
971 sizeof(*tcp->tok), tcp->tok))
972 return -ENOBUFS;
973
974 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
975 tcp->data_interval_max))
976 return -ENOBUFS;
977
978 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
979 tcp->wake_payload_max))
980 return -ENOBUFS;
981
982 nla_nest_end(msg, nl_tcp);
983 return 0;
984}
985
3713b4e3 986static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 987 struct cfg80211_registered_device *dev,
988 bool large)
55682965 989{
3713b4e3 990 struct nlattr *nl_wowlan;
55682965 991
964dc9e2 992 if (!dev->wiphy.wowlan)
3713b4e3 993 return 0;
55682965 994
3713b4e3
JB		 995 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
996 if (!nl_wowlan)
997 return -ENOBUFS;
9360ffd1 998
964dc9e2 999 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1000 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
964dc9e2 1001 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1002 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
964dc9e2 1003 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1004 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
964dc9e2 1005 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1006 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
964dc9e2 1007 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1008 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
964dc9e2 1009 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1010 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
964dc9e2 1011 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1012 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
964dc9e2 1013 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1014 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1015 return -ENOBUFS;
9360ffd1 1016
964dc9e2 1017 if (dev->wiphy.wowlan->n_patterns) {
50ac6607 1018 struct nl80211_pattern_support pat = {
964dc9e2
JB		 1019 .max_patterns = dev->wiphy.wowlan->n_patterns,
1020 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
1021 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
1022 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1023 };
9360ffd1 1024
3713b4e3
JB		 1025 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1026 sizeof(pat), &pat))
1027 return -ENOBUFS;
1028 }
9360ffd1 1029
b56cf720
JB		 1030 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1031 return -ENOBUFS;
1032
3713b4e3 1033 nla_nest_end(msg, nl_wowlan);
9360ffd1 1034
3713b4e3
JB		 1035 return 0;
1036}
1037#endif
9360ffd1 1038
be29b99a
AK		 1039static int nl80211_send_coalesce(struct sk_buff *msg,
1040 struct cfg80211_registered_device *dev)
1041{
1042 struct nl80211_coalesce_rule_support rule;
1043
1044 if (!dev->wiphy.coalesce)
1045 return 0;
1046
1047 rule.max_rules = dev->wiphy.coalesce->n_rules;
1048 rule.max_delay = dev->wiphy.coalesce->max_delay;
1049 rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
1050 rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
1051 rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
1052 rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
1053
1054 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1055 return -ENOBUFS;
1056
1057 return 0;
1058}
1059
3713b4e3
JB		 1060static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1061 struct ieee80211_supported_band *sband)
1062{
1063 struct nlattr *nl_rates, *nl_rate;
1064 struct ieee80211_rate *rate;
1065 int i;
87bbbe22 1066
3713b4e3
JB		 1067 /* add HT info */
1068 if (sband->ht_cap.ht_supported &&
1069 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1070 sizeof(sband->ht_cap.mcs),
1071 &sband->ht_cap.mcs) ||
1072 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1073 sband->ht_cap.cap) ||
1074 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1075 sband->ht_cap.ampdu_factor) ||
1076 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1077 sband->ht_cap.ampdu_density)))
1078 return -ENOBUFS;
afe0cbf8 1079
3713b4e3
JB		 1080 /* add VHT info */
1081 if (sband->vht_cap.vht_supported &&
1082 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1083 sizeof(sband->vht_cap.vht_mcs),
1084 &sband->vht_cap.vht_mcs) ||
1085 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1086 sband->vht_cap.cap)))
1087 return -ENOBUFS;
f59ac048 1088
3713b4e3
JB		 1089 /* add bitrates */
1090 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1091 if (!nl_rates)
1092 return -ENOBUFS;
ee688b00 1093
3713b4e3
JB		 1094 for (i = 0; i < sband->n_bitrates; i++) {
1095 nl_rate = nla_nest_start(msg, i);
1096 if (!nl_rate)
1097 return -ENOBUFS;
ee688b00 1098
3713b4e3
JB		 1099 rate = &sband->bitrates[i];
1100 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1101 rate->bitrate))
1102 return -ENOBUFS;
1103 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1104 nla_put_flag(msg,
1105 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1106 return -ENOBUFS;
ee688b00 1107
3713b4e3
JB		 1108 nla_nest_end(msg, nl_rate);
1109 }
d51626df 1110
3713b4e3 1111 nla_nest_end(msg, nl_rates);
bf0c111e 1112
3713b4e3
JB		 1113 return 0;
1114}
ee688b00 1115
3713b4e3
JB		 1116static int
1117nl80211_send_mgmt_stypes(struct sk_buff *msg,
1118 const struct ieee80211_txrx_stypes *mgmt_stypes)
1119{
1120 u16 stypes;
1121 struct nlattr *nl_ftypes, *nl_ifs;
1122 enum nl80211_iftype ift;
1123 int i;
ee688b00 1124
3713b4e3
JB		 1125 if (!mgmt_stypes)
1126 return 0;
5dab3b8a 1127
3713b4e3
JB		 1128 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1129 if (!nl_ifs)
1130 return -ENOBUFS;
e2f367f2 1131
3713b4e3
JB		 1132 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1133 nl_ftypes = nla_nest_start(msg, ift);
1134 if (!nl_ftypes)
1135 return -ENOBUFS;
1136 i = 0;
1137 stypes = mgmt_stypes[ift].tx;
1138 while (stypes) {
1139 if ((stypes & 1) &&
1140 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1141 (i << 4) | IEEE80211_FTYPE_MGMT))
1142 return -ENOBUFS;
1143 stypes >>= 1;
1144 i++;
ee688b00 1145 }
3713b4e3
JB		 1146 nla_nest_end(msg, nl_ftypes);
1147 }
ee688b00 1148
3713b4e3 1149 nla_nest_end(msg, nl_ifs);
ee688b00 1150
3713b4e3
JB		 1151 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1152 if (!nl_ifs)
1153 return -ENOBUFS;
ee688b00 1154
3713b4e3
JB		 1155 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1156 nl_ftypes = nla_nest_start(msg, ift);
1157 if (!nl_ftypes)
1158 return -ENOBUFS;
1159 i = 0;
1160 stypes = mgmt_stypes[ift].rx;
1161 while (stypes) {
1162 if ((stypes & 1) &&
1163 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1164 (i << 4) | IEEE80211_FTYPE_MGMT))
1165 return -ENOBUFS;
1166 stypes >>= 1;
1167 i++;
1168 }
1169 nla_nest_end(msg, nl_ftypes);
1170 }
1171 nla_nest_end(msg, nl_ifs);
ee688b00 1172
3713b4e3
JB		 1173 return 0;
1174}
ee688b00 1175
86e8cf98
JB		 1176struct nl80211_dump_wiphy_state {
1177 s64 filter_wiphy;
1178 long start;
1179 long split_start, band_start, chan_start;
1180 bool split;
1181};
1182
3713b4e3
JB		 1183static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1184 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1185 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1186{
1187 void *hdr;
1188 struct nlattr *nl_bands, *nl_band;
1189 struct nlattr *nl_freqs, *nl_freq;
1190 struct nlattr *nl_cmds;
ad7e718c 1191 struct nlattr *nl_vendor_cmds;
3713b4e3
JB		 1192 enum ieee80211_band band;
1193 struct ieee80211_channel *chan;
1194 int i;
1195 const struct ieee80211_txrx_stypes *mgmt_stypes =
1196 dev->wiphy.mgmt_stypes;
fe1abafd 1197 u32 features;
ee688b00 1198
3713b4e3
JB		 1199 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1200 if (!hdr)
1201 return -ENOBUFS;
ee688b00 1202
86e8cf98
JB		 1203 if (WARN_ON(!state))
1204 return -EINVAL;
ee688b00 1205
3713b4e3
JB		 1206 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1207 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1208 wiphy_name(&dev->wiphy)) ||
1209 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1210 cfg80211_rdev_list_generation))
8fdc621d
JB		 1211 goto nla_put_failure;
1212
86e8cf98 1213 switch (state->split_start) {
3713b4e3
JB		 1214 case 0:
1215 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1216 dev->wiphy.retry_short) ||
1217 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1218 dev->wiphy.retry_long) ||
1219 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1220 dev->wiphy.frag_threshold) ||
1221 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1222 dev->wiphy.rts_threshold) ||
1223 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1224 dev->wiphy.coverage_class) ||
1225 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1226 dev->wiphy.max_scan_ssids) ||
1227 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1228 dev->wiphy.max_sched_scan_ssids) ||
1229 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1230 dev->wiphy.max_scan_ie_len) ||
1231 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1232 dev->wiphy.max_sched_scan_ie_len) ||
1233 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1234 dev->wiphy.max_match_sets))
9360ffd1 1235 goto nla_put_failure;
3713b4e3
JB		 1236
1237 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1238 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1239 goto nla_put_failure;
3713b4e3
JB		 1240 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1241 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1242 goto nla_put_failure;
1243 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1244 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1245 goto nla_put_failure;
1246 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1247 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1248 goto nla_put_failure;
1249 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1250 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1251 goto nla_put_failure;
1252 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1253 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1254 goto nla_put_failure;
86e8cf98
JB		 1255 state->split_start++;
1256 if (state->split)
3713b4e3
JB		 1257 break;
1258 case 1:
1259 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1260 sizeof(u32) * dev->wiphy.n_cipher_suites,
1261 dev->wiphy.cipher_suites))
1262 goto nla_put_failure;
4745fc09 1263
3713b4e3
JB		 1264 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1265 dev->wiphy.max_num_pmkids))
1266 goto nla_put_failure;
b23aa676 1267
3713b4e3
JB		 1268 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1269 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1270 goto nla_put_failure;
b23aa676 1271
3713b4e3
JB		 1272 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1273 dev->wiphy.available_antennas_tx) ||
1274 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1275 dev->wiphy.available_antennas_rx))
9360ffd1 1276 goto nla_put_failure;
b23aa676 1277
3713b4e3
JB		 1278 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1279 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1280 dev->wiphy.probe_resp_offload))
1281 goto nla_put_failure;
8fdc621d 1282
3713b4e3
JB		 1283 if ((dev->wiphy.available_antennas_tx ||
1284 dev->wiphy.available_antennas_rx) &&
1285 dev->ops->get_antenna) {
1286 u32 tx_ant = 0, rx_ant = 0;
1287 int res;
1288 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1289 if (!res) {
1290 if (nla_put_u32(msg,
1291 NL80211_ATTR_WIPHY_ANTENNA_TX,
1292 tx_ant) ||
1293 nla_put_u32(msg,
1294 NL80211_ATTR_WIPHY_ANTENNA_RX,
1295 rx_ant))
1296 goto nla_put_failure;
1297 }
1298 }
a293911d 1299
86e8cf98
JB		 1300 state->split_start++;
1301 if (state->split)
3713b4e3
JB		 1302 break;
1303 case 2:
1304 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1305 dev->wiphy.interface_modes))
1306 goto nla_put_failure;
86e8cf98
JB		 1307 state->split_start++;
1308 if (state->split)
3713b4e3
JB		 1309 break;
1310 case 3:
1311 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1312 if (!nl_bands)
1313 goto nla_put_failure;
f7ca38df 1314
86e8cf98
JB		 1315 for (band = state->band_start;
1316 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1317 struct ieee80211_supported_band *sband;
2e161f78 1318
3713b4e3 1319 sband = dev->wiphy.bands[band];
2e161f78 1320
3713b4e3
JB		 1321 if (!sband)
1322 continue;
1323
1324 nl_band = nla_nest_start(msg, band);
1325 if (!nl_band)
2e161f78 1326 goto nla_put_failure;
3713b4e3 1327
86e8cf98 1328 switch (state->chan_start) {
3713b4e3
JB		 1329 case 0:
1330 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1331 goto nla_put_failure;
86e8cf98
JB		 1332 state->chan_start++;
1333 if (state->split)
3713b4e3
JB		 1334 break;
1335 default:
1336 /* add frequencies */
1337 nl_freqs = nla_nest_start(
1338 msg, NL80211_BAND_ATTR_FREQS);
1339 if (!nl_freqs)
1340 goto nla_put_failure;
1341
86e8cf98 1342 for (i = state->chan_start - 1;
3713b4e3
JB		 1343 i < sband->n_channels;
1344 i++) {
1345 nl_freq = nla_nest_start(msg, i);
1346 if (!nl_freq)
1347 goto nla_put_failure;
1348
1349 chan = &sband->channels[i];
1350
86e8cf98
JB		 1351 if (nl80211_msg_put_channel(
1352 msg, chan,
1353 state->split))
3713b4e3
JB		 1354 goto nla_put_failure;
1355
1356 nla_nest_end(msg, nl_freq);
86e8cf98 1357 if (state->split)
3713b4e3
JB		 1358 break;
1359 }
1360 if (i < sband->n_channels)
86e8cf98 1361 state->chan_start = i + 2;
3713b4e3 1362 else
86e8cf98 1363 state->chan_start = 0;
3713b4e3
JB		 1364 nla_nest_end(msg, nl_freqs);
1365 }
1366
1367 nla_nest_end(msg, nl_band);
1368
86e8cf98 1369 if (state->split) {
3713b4e3 1370 /* start again here */
86e8cf98 1371 if (state->chan_start)
3713b4e3
JB		 1372 band--;
1373 break;
2e161f78 1374 }
2e161f78 1375 }
3713b4e3 1376 nla_nest_end(msg, nl_bands);
2e161f78 1377
3713b4e3 1378 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1379 state->band_start = band + 1;
3713b4e3 1380 else
86e8cf98 1381 state->band_start = 0;
74b70a4e 1382
3713b4e3 1383 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1384 if (state->band_start == 0 && state->chan_start == 0)
1385 state->split_start++;
1386 if (state->split)
3713b4e3
JB		 1387 break;
1388 case 4:
1389 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1390 if (!nl_cmds)
2e161f78
JB		 1391 goto nla_put_failure;
1392
3713b4e3
JB		 1393 i = 0;
1394#define CMD(op, n) \
1395 do { \
1396 if (dev->ops->op) { \
1397 i++; \
1398 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1399 goto nla_put_failure; \
1400 } \
1401 } while (0)
1402
1403 CMD(add_virtual_intf, NEW_INTERFACE);
1404 CMD(change_virtual_intf, SET_INTERFACE);
1405 CMD(add_key, NEW_KEY);
1406 CMD(start_ap, START_AP);
1407 CMD(add_station, NEW_STATION);
1408 CMD(add_mpath, NEW_MPATH);
1409 CMD(update_mesh_config, SET_MESH_CONFIG);
1410 CMD(change_bss, SET_BSS);
1411 CMD(auth, AUTHENTICATE);
1412 CMD(assoc, ASSOCIATE);
1413 CMD(deauth, DEAUTHENTICATE);
1414 CMD(disassoc, DISASSOCIATE);
1415 CMD(join_ibss, JOIN_IBSS);
1416 CMD(join_mesh, JOIN_MESH);
1417 CMD(set_pmksa, SET_PMKSA);
1418 CMD(del_pmksa, DEL_PMKSA);
1419 CMD(flush_pmksa, FLUSH_PMKSA);
1420 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1421 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1422 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1423 CMD(mgmt_tx, FRAME);
1424 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1425 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1426 i++;
1427 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1428 goto nla_put_failure;
2e161f78 1429 }
3713b4e3
JB		 1430 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1431 dev->ops->join_mesh) {
1432 i++;
1433 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1434 goto nla_put_failure;
1435 }
1436 CMD(set_wds_peer, SET_WDS_PEER);
1437 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1438 CMD(tdls_mgmt, TDLS_MGMT);
1439 CMD(tdls_oper, TDLS_OPER);
1440 }
1441 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1442 CMD(sched_scan_start, START_SCHED_SCAN);
1443 CMD(probe_client, PROBE_CLIENT);
1444 CMD(set_noack_map, SET_NOACK_MAP);
1445 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1446 i++;
1447 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1448 goto nla_put_failure;
1449 }
1450 CMD(start_p2p_device, START_P2P_DEVICE);
1451 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1452 if (state->split) {
5de17984
AS		 1453 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1454 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
16ef1fe2
SW		 1455 if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1456 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1457 }
2e161f78 1458
3713b4e3
JB		 1459#ifdef CONFIG_NL80211_TESTMODE
1460 CMD(testmode_cmd, TESTMODE);
1461#endif
ff1b6e69 1462
3713b4e3 1463#undef CMD
ff1b6e69 1464
3713b4e3
JB		 1465 if (dev->ops->connect || dev->ops->auth) {
1466 i++;
1467 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1468 goto nla_put_failure;
ff1b6e69
JB		 1469 }
1470
3713b4e3
JB		 1471 if (dev->ops->disconnect || dev->ops->deauth) {
1472 i++;
1473 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1474 goto nla_put_failure;
1475 }
1476
1477 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1478 state->split_start++;
1479 if (state->split)
3713b4e3
JB		 1480 break;
1481 case 5:
1482 if (dev->ops->remain_on_channel &&
1483 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1484 nla_put_u32(msg,
1485 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1486 dev->wiphy.max_remain_on_channel_duration))
1487 goto nla_put_failure;
1488
1489 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1490 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1491 goto nla_put_failure;
1492
1493 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1494 goto nla_put_failure;
86e8cf98
JB		 1495 state->split_start++;
1496 if (state->split)
3713b4e3
JB		 1497 break;
1498 case 6:
1499#ifdef CONFIG_PM
86e8cf98 1500 if (nl80211_send_wowlan(msg, dev, state->split))
3713b4e3 1501 goto nla_put_failure;
86e8cf98
JB		 1502 state->split_start++;
1503 if (state->split)
3713b4e3
JB		 1504 break;
1505#else
86e8cf98 1506 state->split_start++;
dfb89c56 1507#endif
3713b4e3
JB		 1508 case 7:
1509 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1510 dev->wiphy.software_iftypes))
1511 goto nla_put_failure;
ff1b6e69 1512
86e8cf98
JB		 1513 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1514 state->split))
3713b4e3 1515 goto nla_put_failure;
7527a782 1516
86e8cf98
JB		 1517 state->split_start++;
1518 if (state->split)
3713b4e3
JB		 1519 break;
1520 case 8:
1521 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1522 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1523 dev->wiphy.ap_sme_capa))
1524 goto nla_put_failure;
7527a782 1525
fe1abafd
JB		 1526 features = dev->wiphy.features;
1527 /*
1528 * We can only add the per-channel limit information if the
1529 * dump is split, otherwise it makes it too big. Therefore
1530 * only advertise it in that case.
1531 */
86e8cf98 1532 if (state->split)
fe1abafd
JB		 1533 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1534 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1535 goto nla_put_failure;
562a7480 1536
3713b4e3
JB		 1537 if (dev->wiphy.ht_capa_mod_mask &&
1538 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1539 sizeof(*dev->wiphy.ht_capa_mod_mask),
1540 dev->wiphy.ht_capa_mod_mask))
1541 goto nla_put_failure;
1f074bd8 1542
3713b4e3
JB		 1543 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1544 dev->wiphy.max_acl_mac_addrs &&
1545 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1546 dev->wiphy.max_acl_mac_addrs))
1547 goto nla_put_failure;
7e7c8926 1548
3713b4e3
JB		 1549 /*
1550 * Any information below this point is only available to
1551 * applications that can deal with it being split. This
1552 * helps ensure that newly added capabilities don't break
1553 * older tools by overrunning their buffers.
1554 *
1555 * We still increment split_start so that in the split
1556 * case we'll continue with more data in the next round,
1557 * but break unconditionally so unsplit data stops here.
1558 */
86e8cf98 1559 state->split_start++;
3713b4e3
JB		 1560 break;
1561 case 9:
fe1abafd
JB		 1562 if (dev->wiphy.extended_capabilities &&
1563 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1564 dev->wiphy.extended_capabilities_len,
1565 dev->wiphy.extended_capabilities) ||
1566 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1567 dev->wiphy.extended_capabilities_len,
1568 dev->wiphy.extended_capabilities_mask)))
1569 goto nla_put_failure;
a50df0c4 1570
ee2aca34
JB		 1571 if (dev->wiphy.vht_capa_mod_mask &&
1572 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1573 sizeof(*dev->wiphy.vht_capa_mod_mask),
1574 dev->wiphy.vht_capa_mod_mask))
1575 goto nla_put_failure;
1576
be29b99a
AK		 1577 state->split_start++;
1578 break;
1579 case 10:
1580 if (nl80211_send_coalesce(msg, dev))
1581 goto nla_put_failure;
1582
01e0daa4
FF		 1583 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1584 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1585 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1586 goto nla_put_failure;
ad7e718c
JB		 1587 state->split_start++;
1588 break;
1589 case 11:
1590 nl_vendor_cmds = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1591 if (!nl_vendor_cmds)
1592 goto nla_put_failure;
1593
1594 for (i = 0; i < dev->wiphy.n_vendor_commands; i++)
1595 if (nla_put(msg, i + 1,
1596 sizeof(struct nl80211_vendor_cmd_info),
1597 &dev->wiphy.vendor_commands[i].info))
1598 goto nla_put_failure;
1599 nla_nest_end(msg, nl_vendor_cmds);
01e0daa4 1600
3713b4e3 1601 /* done */
86e8cf98 1602 state->split_start = 0;
3713b4e3
JB		 1603 break;
1604 }
55682965
JB		 1605 return genlmsg_end(msg, hdr);
1606
1607 nla_put_failure:
bc3ed28c
TG		 1608 genlmsg_cancel(msg, hdr);
1609 return -EMSGSIZE;
55682965
JB		 1610}
1611
86e8cf98
JB		 1612static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1613 struct netlink_callback *cb,
1614 struct nl80211_dump_wiphy_state *state)
1615{
1616 struct nlattr **tb = nl80211_fam.attrbuf;
1617 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1618 tb, nl80211_fam.maxattr, nl80211_policy);
1619 /* ignore parse errors for backward compatibility */
1620 if (ret)
1621 return 0;
1622
1623 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1624 if (tb[NL80211_ATTR_WIPHY])
1625 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1626 if (tb[NL80211_ATTR_WDEV])
1627 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1628 if (tb[NL80211_ATTR_IFINDEX]) {
1629 struct net_device *netdev;
1630 struct cfg80211_registered_device *rdev;
1631 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1632
1633 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1634 if (!netdev)
1635 return -ENODEV;
1636 if (netdev->ieee80211_ptr) {
1637 rdev = wiphy_to_dev(
1638 netdev->ieee80211_ptr->wiphy);
1639 state->filter_wiphy = rdev->wiphy_idx;
1640 }
1641 dev_put(netdev);
1642 }
1643
1644 return 0;
1645}
1646
55682965
JB		 1647static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1648{
645e77de 1649 int idx = 0, ret;
86e8cf98 1650 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
55682965 1651 struct cfg80211_registered_device *dev;
3a5a423b 1652
5fe231e8 1653 rtnl_lock();
86e8cf98
JB		 1654 if (!state) {
1655 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1656 if (!state) {
1657 rtnl_unlock();
86e8cf98 1658 return -ENOMEM;
3713b4e3 1659 }
86e8cf98
JB		 1660 state->filter_wiphy = -1;
1661 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1662 if (ret) {
1663 kfree(state);
1664 rtnl_unlock();
1665 return ret;
3713b4e3 1666 }
86e8cf98 1667 cb->args[0] = (long)state;
3713b4e3
JB		 1668 }
1669
79c97e97 1670 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1671 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1672 continue;
86e8cf98 1673 if (++idx <= state->start)
55682965 1674 continue;
86e8cf98
JB		 1675 if (state->filter_wiphy != -1 &&
1676 state->filter_wiphy != dev->wiphy_idx)
3713b4e3
JB		 1677 continue;
1678 /* attempt to fit multiple wiphy data chunks into the skb */
1679 do {
1680 ret = nl80211_send_wiphy(dev, skb,
1681 NETLINK_CB(cb->skb).portid,
1682 cb->nlh->nlmsg_seq,
86e8cf98 1683 NLM_F_MULTI, state);
3713b4e3
JB		 1684 if (ret < 0) {
1685 /*
1686 * If sending the wiphy data didn't fit (ENOBUFS
1687 * or EMSGSIZE returned), this SKB is still
1688 * empty (so it's not too big because another
1689 * wiphy dataset is already in the skb) and
1690 * we've not tried to adjust the dump allocation
1691 * yet ... then adjust the alloc size to be
1692 * bigger, and return 1 but with the empty skb.
1693 * This results in an empty message being RX'ed
1694 * in userspace, but that is ignored.
1695 *
1696 * We can then retry with the larger buffer.
1697 */
1698 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1699 !skb->len &&
1700 cb->min_dump_alloc < 4096) {
1701 cb->min_dump_alloc = 4096;
d98cae64 1702 rtnl_unlock();
3713b4e3
JB		 1703 return 1;
1704 }
1705 idx--;
1706 break;
645e77de 1707 }
86e8cf98 1708 } while (state->split_start > 0);
3713b4e3 1709 break;
55682965 1710 }
5fe231e8 1711 rtnl_unlock();
55682965 1712
86e8cf98 1713 state->start = idx;
55682965
JB		 1714
1715 return skb->len;
1716}
1717
86e8cf98
JB		 1718static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1719{
1720 kfree((void *)cb->args[0]);
1721 return 0;
1722}
1723
55682965
JB		 1724static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1725{
1726 struct sk_buff *msg;
4c476991 1727 struct cfg80211_registered_device *dev = info->user_ptr[0];
86e8cf98 1728 struct nl80211_dump_wiphy_state state = {};
55682965 1729
645e77de 1730 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1731 if (!msg)
4c476991 1732 return -ENOMEM;
55682965 1733
3713b4e3 1734 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1735 &state) < 0) {
4c476991
JB		 1736 nlmsg_free(msg);
1737 return -ENOBUFS;
1738 }
55682965 1739
134e6375 1740 return genlmsg_reply(msg, info);
55682965
JB		 1741}
1742
31888487
JM		 1743static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1744 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1745 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1746 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1747 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1748 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1749};
1750
1751static int parse_txq_params(struct nlattr *tb[],
1752 struct ieee80211_txq_params *txq_params)
1753{
a3304b0a 1754 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1755 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1756 !tb[NL80211_TXQ_ATTR_AIFS])
1757 return -EINVAL;
1758
a3304b0a 1759 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1760 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1761 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1762 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1763 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1764
a3304b0a
JB		 1765 if (txq_params->ac >= NL80211_NUM_ACS)
1766 return -EINVAL;
1767
31888487
JM		 1768 return 0;
1769}
1770
f444de05
JB		 1771static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1772{
1773 /*
cc1d2806
JB		 1774 * You can only set the channel explicitly for WDS interfaces,
1775 * all others have their channel managed via their respective
1776 * "establish a connection" command (connect, join, ...)
1777 *
1778 * For AP/GO and mesh mode, the channel can be set with the
1779 * channel userspace API, but is only stored and passed to the
1780 * low-level driver when the AP starts or the mesh is joined.
1781 * This is for backward compatibility, userspace can also give
1782 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1783 *
1784 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1785 * whatever else is going on, so they have their own special
1786 * operation to set the monitor channel if possible.
f444de05
JB		 1787 */
1788 return !wdev ||
1789 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1790 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1791 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1792 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1793}
1794
683b6d3b
JB		 1795static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1796 struct genl_info *info,
1797 struct cfg80211_chan_def *chandef)
1798{
dbeca2ea 1799 u32 control_freq;
683b6d3b
JB		 1800
1801 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1802 return -EINVAL;
1803
1804 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1805
1806 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1807 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1808 chandef->center_freq1 = control_freq;
1809 chandef->center_freq2 = 0;
683b6d3b
JB		 1810
1811 /* Primary channel not allowed */
1812 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1813 return -EINVAL;
1814
3d9d1d66
JB		 1815 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1816 enum nl80211_channel_type chantype;
1817
1818 chantype = nla_get_u32(
1819 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1820
1821 switch (chantype) {
1822 case NL80211_CHAN_NO_HT:
1823 case NL80211_CHAN_HT20:
1824 case NL80211_CHAN_HT40PLUS:
1825 case NL80211_CHAN_HT40MINUS:
1826 cfg80211_chandef_create(chandef, chandef->chan,
1827 chantype);
1828 break;
1829 default:
1830 return -EINVAL;
1831 }
1832 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1833 chandef->width =
1834 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1835 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1836 chandef->center_freq1 =
1837 nla_get_u32(
1838 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1839 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1840 chandef->center_freq2 =
1841 nla_get_u32(
1842 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1843 }
1844
9f5e8f6e 1845 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1846 return -EINVAL;
1847
9f5e8f6e
JB		 1848 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1849 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1850 return -EINVAL;
1851
2f301ab2
SW		 1852 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1853 chandef->width == NL80211_CHAN_WIDTH_10) &&
1854 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1855 return -EINVAL;
1856
683b6d3b
JB		 1857 return 0;
1858}
1859
f444de05
JB		 1860static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1861 struct wireless_dev *wdev,
1862 struct genl_info *info)
1863{
683b6d3b 1864 struct cfg80211_chan_def chandef;
f444de05 1865 int result;
e8c9bd5b
JB		 1866 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1867
1868 if (wdev)
1869 iftype = wdev->iftype;
f444de05 1870
f444de05
JB		 1871 if (!nl80211_can_set_dev_channel(wdev))
1872 return -EOPNOTSUPP;
1873
683b6d3b
JB		 1874 result = nl80211_parse_chandef(rdev, info, &chandef);
1875 if (result)
1876 return result;
f444de05 1877
e8c9bd5b 1878 switch (iftype) {
aa430da4
JB		 1879 case NL80211_IFTYPE_AP:
1880 case NL80211_IFTYPE_P2P_GO:
1881 if (wdev->beacon_interval) {
1882 result = -EBUSY;
1883 break;
1884 }
683b6d3b 1885 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1886 result = -EINVAL;
1887 break;
1888 }
683b6d3b 1889 wdev->preset_chandef = chandef;
aa430da4
JB		 1890 result = 0;
1891 break;
cc1d2806 1892 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1893 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1894 break;
e8c9bd5b 1895 case NL80211_IFTYPE_MONITOR:
683b6d3b 1896 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1897 break;
aa430da4 1898 default:
e8c9bd5b 1899 result = -EINVAL;
f444de05 1900 }
f444de05
JB		 1901
1902 return result;
1903}
1904
1905static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1906{
4c476991
JB		 1907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1908 struct net_device *netdev = info->user_ptr[1];
f444de05 1909
4c476991 1910 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1911}
1912
e8347eba
BJ		 1913static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1914{
43b19952
JB		 1915 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1916 struct net_device *dev = info->user_ptr[1];
1917 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1918 const u8 *bssid;
e8347eba
BJ		 1919
1920 if (!info->attrs[NL80211_ATTR_MAC])
1921 return -EINVAL;
1922
43b19952
JB		 1923 if (netif_running(dev))
1924 return -EBUSY;
e8347eba 1925
43b19952
JB		 1926 if (!rdev->ops->set_wds_peer)
1927 return -EOPNOTSUPP;
e8347eba 1928
43b19952
JB		 1929 if (wdev->iftype != NL80211_IFTYPE_WDS)
1930 return -EOPNOTSUPP;
e8347eba
BJ		 1931
1932 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1933 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1934}
1935
1936
55682965
JB		 1937static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1938{
1939 struct cfg80211_registered_device *rdev;
f444de05
JB		 1940 struct net_device *netdev = NULL;
1941 struct wireless_dev *wdev;
a1e567c8 1942 int result = 0, rem_txq_params = 0;
31888487 1943 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1944 u32 changed;
1945 u8 retry_short = 0, retry_long = 0;
1946 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1947 u8 coverage_class = 0;
55682965 1948
5fe231e8
JB		 1949 ASSERT_RTNL();
1950
f444de05
JB		 1951 /*
1952 * Try to find the wiphy and netdev. Normally this
1953 * function shouldn't need the netdev, but this is
1954 * done for backward compatibility -- previously
1955 * setting the channel was done per wiphy, but now
1956 * it is per netdev. Previous userland like hostapd
1957 * also passed a netdev to set_wiphy, so that it is
1958 * possible to let that go to the right netdev!
1959 */
4bbf4d56 1960
f444de05
JB		 1961 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1962 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1963
1964 netdev = dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 1965 if (netdev && netdev->ieee80211_ptr)
f444de05 1966 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 1967 else
f444de05 1968 netdev = NULL;
4bbf4d56
JB		 1969 }
1970
f444de05 1971 if (!netdev) {
878d9ec7
JB		 1972 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1973 info->attrs);
5fe231e8 1974 if (IS_ERR(rdev))
4c476991 1975 return PTR_ERR(rdev);
f444de05
JB		 1976 wdev = NULL;
1977 netdev = NULL;
1978 result = 0;
71fe96bf 1979 } else
f444de05 1980 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1981
1982 /*
1983 * end workaround code, by now the rdev is available
1984 * and locked, and wdev may or may not be NULL.
1985 */
4bbf4d56
JB		 1986
1987 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1988 result = cfg80211_dev_rename(
1989 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 1990
4bbf4d56
JB		 1991 if (result)
1992 goto bad_res;
31888487
JM		 1993
1994 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1995 struct ieee80211_txq_params txq_params;
1996 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1997
1998 if (!rdev->ops->set_txq_params) {
1999 result = -EOPNOTSUPP;
2000 goto bad_res;
2001 }
2002
f70f01c2
EP		 2003 if (!netdev) {
2004 result = -EINVAL;
2005 goto bad_res;
2006 }
2007
133a3ff2
JB		 2008 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2009 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
2010 result = -EINVAL;
2011 goto bad_res;
2012 }
2013
2b5f8b0b
JB		 2014 if (!netif_running(netdev)) {
2015 result = -ENETDOWN;
2016 goto bad_res;
2017 }
2018
31888487
JM		 2019 nla_for_each_nested(nl_txq_params,
2020 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2021 rem_txq_params) {
2022 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2023 nla_data(nl_txq_params),
2024 nla_len(nl_txq_params),
2025 txq_params_policy);
2026 result = parse_txq_params(tb, &txq_params);
2027 if (result)
2028 goto bad_res;
2029
e35e4d28
HG		 2030 result = rdev_set_txq_params(rdev, netdev,
2031 &txq_params);
31888487
JM		 2032 if (result)
2033 goto bad_res;
2034 }
2035 }
55682965 2036
72bdcf34 2037 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 2038 result = __nl80211_set_channel(rdev,
2039 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
2040 info);
72bdcf34
JM		 2041 if (result)
2042 goto bad_res;
2043 }
2044
98d2ff8b 2045 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2046 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2047 enum nl80211_tx_power_setting type;
2048 int idx, mbm = 0;
2049
c8442118
JB		 2050 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2051 txp_wdev = NULL;
2052
98d2ff8b 2053 if (!rdev->ops->set_tx_power) {
60ea385f 2054 result = -EOPNOTSUPP;
98d2ff8b
JO		 2055 goto bad_res;
2056 }
2057
2058 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2059 type = nla_get_u32(info->attrs[idx]);
2060
2061 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2062 (type != NL80211_TX_POWER_AUTOMATIC)) {
2063 result = -EINVAL;
2064 goto bad_res;
2065 }
2066
2067 if (type != NL80211_TX_POWER_AUTOMATIC) {
2068 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2069 mbm = nla_get_u32(info->attrs[idx]);
2070 }
2071
c8442118 2072 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 2073 if (result)
2074 goto bad_res;
2075 }
2076
afe0cbf8
BR		 2077 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2078 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2079 u32 tx_ant, rx_ant;
7f531e03
BR		 2080 if ((!rdev->wiphy.available_antennas_tx &&
2081 !rdev->wiphy.available_antennas_rx) ||
2082 !rdev->ops->set_antenna) {
afe0cbf8
BR		 2083 result = -EOPNOTSUPP;
2084 goto bad_res;
2085 }
2086
2087 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2088 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2089
a7ffac95 2090 /* reject antenna configurations which don't match the
7f531e03
BR		 2091 * available antenna masks, except for the "all" mask */
2092 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2093 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 2094 result = -EINVAL;
2095 goto bad_res;
2096 }
2097
7f531e03
BR		 2098 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2099 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2100
e35e4d28 2101 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 2102 if (result)
2103 goto bad_res;
2104 }
2105
b9a5f8ca
JM		 2106 changed = 0;
2107
2108 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2109 retry_short = nla_get_u8(
2110 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2111 if (retry_short == 0) {
2112 result = -EINVAL;
2113 goto bad_res;
2114 }
2115 changed |= WIPHY_PARAM_RETRY_SHORT;
2116 }
2117
2118 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2119 retry_long = nla_get_u8(
2120 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2121 if (retry_long == 0) {
2122 result = -EINVAL;
2123 goto bad_res;
2124 }
2125 changed |= WIPHY_PARAM_RETRY_LONG;
2126 }
2127
2128 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2129 frag_threshold = nla_get_u32(
2130 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2131 if (frag_threshold < 256) {
2132 result = -EINVAL;
2133 goto bad_res;
2134 }
2135 if (frag_threshold != (u32) -1) {
2136 /*
2137 * Fragments (apart from the last one) are required to
2138 * have even length. Make the fragmentation code
2139 * simpler by stripping LSB should someone try to use
2140 * odd threshold value.
2141 */
2142 frag_threshold &= ~0x1;
2143 }
2144 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2145 }
2146
2147 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2148 rts_threshold = nla_get_u32(
2149 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2150 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2151 }
2152
81077e82
LT		 2153 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2154 coverage_class = nla_get_u8(
2155 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2156 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2157 }
2158
b9a5f8ca
JM		 2159 if (changed) {
2160 u8 old_retry_short, old_retry_long;
2161 u32 old_frag_threshold, old_rts_threshold;
81077e82 2162 u8 old_coverage_class;
b9a5f8ca
JM		 2163
2164 if (!rdev->ops->set_wiphy_params) {
2165 result = -EOPNOTSUPP;
2166 goto bad_res;
2167 }
2168
2169 old_retry_short = rdev->wiphy.retry_short;
2170 old_retry_long = rdev->wiphy.retry_long;
2171 old_frag_threshold = rdev->wiphy.frag_threshold;
2172 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2173 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2174
2175 if (changed & WIPHY_PARAM_RETRY_SHORT)
2176 rdev->wiphy.retry_short = retry_short;
2177 if (changed & WIPHY_PARAM_RETRY_LONG)
2178 rdev->wiphy.retry_long = retry_long;
2179 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2180 rdev->wiphy.frag_threshold = frag_threshold;
2181 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2182 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2183 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2184 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2185
e35e4d28 2186 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2187 if (result) {
2188 rdev->wiphy.retry_short = old_retry_short;
2189 rdev->wiphy.retry_long = old_retry_long;
2190 rdev->wiphy.frag_threshold = old_frag_threshold;
2191 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2192 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2193 }
2194 }
72bdcf34 2195
306d6112 2196 bad_res:
f444de05
JB		 2197 if (netdev)
2198 dev_put(netdev);
55682965
JB		 2199 return result;
2200}
2201
71bbc994
JB		 2202static inline u64 wdev_id(struct wireless_dev *wdev)
2203{
2204 return (u64)wdev->identifier |
2205 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2206}
55682965 2207
683b6d3b 2208static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2209 const struct cfg80211_chan_def *chandef)
683b6d3b 2210{
9f5e8f6e 2211 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2212
683b6d3b
JB		 2213 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2214 chandef->chan->center_freq))
2215 return -ENOBUFS;
3d9d1d66
JB		 2216 switch (chandef->width) {
2217 case NL80211_CHAN_WIDTH_20_NOHT:
2218 case NL80211_CHAN_WIDTH_20:
2219 case NL80211_CHAN_WIDTH_40:
2220 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2221 cfg80211_get_chandef_type(chandef)))
2222 return -ENOBUFS;
2223 break;
2224 default:
2225 break;
2226 }
2227 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2228 return -ENOBUFS;
2229 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2230 return -ENOBUFS;
2231 if (chandef->center_freq2 &&
2232 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2233 return -ENOBUFS;
2234 return 0;
2235}
2236
15e47304 2237static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2238 struct cfg80211_registered_device *rdev,
72fb2abc 2239 struct wireless_dev *wdev)
55682965 2240{
72fb2abc 2241 struct net_device *dev = wdev->netdev;
55682965
JB		 2242 void *hdr;
2243
15e47304 2244 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2245 if (!hdr)
2246 return -1;
2247
72fb2abc
JB		 2248 if (dev &&
2249 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2250 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2251 goto nla_put_failure;
2252
2253 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2254 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2255 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2256 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2257 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2258 rdev->devlist_generation ^
2259 (cfg80211_rdev_list_generation << 2)))
2260 goto nla_put_failure;
f5ea9120 2261
5b7ccaf3 2262 if (rdev->ops->get_channel) {
683b6d3b
JB		 2263 int ret;
2264 struct cfg80211_chan_def chandef;
2265
2266 ret = rdev_get_channel(rdev, wdev, &chandef);
2267 if (ret == 0) {
2268 if (nl80211_send_chandef(msg, &chandef))
2269 goto nla_put_failure;
2270 }
d91df0e3
PF		 2271 }
2272
b84e7a05
AQ		 2273 if (wdev->ssid_len) {
2274 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2275 goto nla_put_failure;
2276 }
2277
55682965
JB		 2278 return genlmsg_end(msg, hdr);
2279
2280 nla_put_failure:
bc3ed28c
TG		 2281 genlmsg_cancel(msg, hdr);
2282 return -EMSGSIZE;
55682965
JB		 2283}
2284
2285static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2286{
2287 int wp_idx = 0;
2288 int if_idx = 0;
2289 int wp_start = cb->args[0];
2290 int if_start = cb->args[1];
f5ea9120 2291 struct cfg80211_registered_device *rdev;
55682965
JB		 2292 struct wireless_dev *wdev;
2293
5fe231e8 2294 rtnl_lock();
f5ea9120
JB		 2295 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2296 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2297 continue;
bba95fef
JB		 2298 if (wp_idx < wp_start) {
2299 wp_idx++;
55682965 2300 continue;
bba95fef 2301 }
55682965
JB		 2302 if_idx = 0;
2303
89a54e48 2304 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2305 if (if_idx < if_start) {
2306 if_idx++;
55682965 2307 continue;
bba95fef 2308 }
15e47304 2309 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2310 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2311 rdev, wdev) < 0) {
bba95fef
JB		 2312 goto out;
2313 }
2314 if_idx++;
55682965 2315 }
bba95fef
JB		 2316
2317 wp_idx++;
55682965 2318 }
bba95fef 2319 out:
5fe231e8 2320 rtnl_unlock();
55682965
JB		 2321
2322 cb->args[0] = wp_idx;
2323 cb->args[1] = if_idx;
2324
2325 return skb->len;
2326}
2327
2328static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2329{
2330 struct sk_buff *msg;
4c476991 2331 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2332 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2333
fd2120ca 2334 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2335 if (!msg)
4c476991 2336 return -ENOMEM;
55682965 2337
15e47304 2338 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2339 dev, wdev) < 0) {
4c476991
JB		 2340 nlmsg_free(msg);
2341 return -ENOBUFS;
2342 }
55682965 2343
134e6375 2344 return genlmsg_reply(msg, info);
55682965
JB		 2345}
2346
66f7ac50
MW		 2347static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2348 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2349 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2350 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2351 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2352 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2353 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2354};
2355
2356static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2357{
2358 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2359 int flag;
2360
2361 *mntrflags = 0;
2362
2363 if (!nla)
2364 return -EINVAL;
2365
2366 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2367 nla, mntr_flags_policy))
2368 return -EINVAL;
2369
2370 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2371 if (flags[flag])
2372 *mntrflags |= (1<<flag);
2373
2374 return 0;
2375}
2376
9bc383de 2377static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2378 struct net_device *netdev, u8 use_4addr,
2379 enum nl80211_iftype iftype)
9bc383de 2380{
ad4bb6f8 2381 if (!use_4addr) {
f350a0a8 2382 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2383 return -EBUSY;
9bc383de 2384 return 0;
ad4bb6f8 2385 }
9bc383de
JB		 2386
2387 switch (iftype) {
2388 case NL80211_IFTYPE_AP_VLAN:
2389 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2390 return 0;
2391 break;
2392 case NL80211_IFTYPE_STATION:
2393 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2394 return 0;
2395 break;
2396 default:
2397 break;
2398 }
2399
2400 return -EOPNOTSUPP;
2401}
2402
55682965
JB		 2403static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2404{
4c476991 2405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2406 struct vif_params params;
e36d56b6 2407 int err;
04a773ad 2408 enum nl80211_iftype otype, ntype;
4c476991 2409 struct net_device *dev = info->user_ptr[1];
92ffe055 2410 u32 _flags, *flags = NULL;
ac7f9cfa 2411 bool change = false;
55682965 2412
2ec600d6
LCC		 2413 memset(&params, 0, sizeof(params));
2414
04a773ad 2415 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2416
723b038d 2417 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2418 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2419 if (otype != ntype)
ac7f9cfa 2420 change = true;
4c476991
JB		 2421 if (ntype > NL80211_IFTYPE_MAX)
2422 return -EINVAL;
723b038d
JB		 2423 }
2424
92ffe055 2425 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2426 struct wireless_dev *wdev = dev->ieee80211_ptr;
2427
4c476991
JB		 2428 if (ntype != NL80211_IFTYPE_MESH_POINT)
2429 return -EINVAL;
29cbe68c
JB		 2430 if (netif_running(dev))
2431 return -EBUSY;
2432
2433 wdev_lock(wdev);
2434 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2435 IEEE80211_MAX_MESH_ID_LEN);
2436 wdev->mesh_id_up_len =
2437 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2438 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2439 wdev->mesh_id_up_len);
2440 wdev_unlock(wdev);
2ec600d6
LCC		 2441 }
2442
8b787643
FF		 2443 if (info->attrs[NL80211_ATTR_4ADDR]) {
2444 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2445 change = true;
ad4bb6f8 2446 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2447 if (err)
4c476991 2448 return err;
8b787643
FF		 2449 } else {
2450 params.use_4addr = -1;
2451 }
2452
92ffe055 2453 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2454 if (ntype != NL80211_IFTYPE_MONITOR)
2455 return -EINVAL;
92ffe055
JB		 2456 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2457 &_flags);
ac7f9cfa 2458 if (err)
4c476991 2459 return err;
ac7f9cfa
JB		 2460
2461 flags = &_flags;
2462 change = true;
92ffe055 2463 }
3b85875a 2464
18003297 2465 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2466 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2467 return -EOPNOTSUPP;
2468
ac7f9cfa 2469 if (change)
3d54d255 2470 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2471 else
2472 err = 0;
60719ffd 2473
9bc383de
JB		 2474 if (!err && params.use_4addr != -1)
2475 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2476
55682965
JB		 2477 return err;
2478}
2479
2480static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2481{
4c476991 2482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2483 struct vif_params params;
84efbb84 2484 struct wireless_dev *wdev;
1c90f9d4 2485 struct sk_buff *msg;
55682965
JB		 2486 int err;
2487 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2488 u32 flags;
55682965 2489
2ec600d6
LCC		 2490 memset(&params, 0, sizeof(params));
2491
55682965
JB		 2492 if (!info->attrs[NL80211_ATTR_IFNAME])
2493 return -EINVAL;
2494
2495 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2496 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2497 if (type > NL80211_IFTYPE_MAX)
2498 return -EINVAL;
2499 }
2500
79c97e97 2501 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2502 !(rdev->wiphy.interface_modes & (1 << type)))
2503 return -EOPNOTSUPP;
55682965 2504
1c18f145
AS		 2505 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2506 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2507 ETH_ALEN);
2508 if (!is_valid_ether_addr(params.macaddr))
2509 return -EADDRNOTAVAIL;
2510 }
2511
9bc383de 2512 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2513 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2514 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2515 if (err)
4c476991 2516 return err;
9bc383de 2517 }
8b787643 2518
1c90f9d4
JB		 2519 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2520 if (!msg)
2521 return -ENOMEM;
2522
66f7ac50
MW		 2523 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2524 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2525 &flags);
e057d3c3 2526
18003297 2527 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2528 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2529 return -EOPNOTSUPP;
2530
e35e4d28
HG		 2531 wdev = rdev_add_virtual_intf(rdev,
2532 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2533 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2534 if (IS_ERR(wdev)) {
2535 nlmsg_free(msg);
84efbb84 2536 return PTR_ERR(wdev);
1c90f9d4 2537 }
2ec600d6 2538
98104fde
JB		 2539 switch (type) {
2540 case NL80211_IFTYPE_MESH_POINT:
2541 if (!info->attrs[NL80211_ATTR_MESH_ID])
2542 break;
29cbe68c
JB		 2543 wdev_lock(wdev);
2544 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2545 IEEE80211_MAX_MESH_ID_LEN);
2546 wdev->mesh_id_up_len =
2547 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2548 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2549 wdev->mesh_id_up_len);
2550 wdev_unlock(wdev);
98104fde
JB		 2551 break;
2552 case NL80211_IFTYPE_P2P_DEVICE:
2553 /*
2554 * P2P Device doesn't have a netdev, so doesn't go
2555 * through the netdev notifier and must be added here
2556 */
2557 mutex_init(&wdev->mtx);
2558 INIT_LIST_HEAD(&wdev->event_list);
2559 spin_lock_init(&wdev->event_lock);
2560 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2561 spin_lock_init(&wdev->mgmt_registrations_lock);
2562
98104fde
JB		 2563 wdev->identifier = ++rdev->wdev_id;
2564 list_add_rcu(&wdev->list, &rdev->wdev_list);
2565 rdev->devlist_generation++;
98104fde
JB		 2566 break;
2567 default:
2568 break;
29cbe68c
JB		 2569 }
2570
15e47304 2571 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2572 rdev, wdev) < 0) {
2573 nlmsg_free(msg);
2574 return -ENOBUFS;
2575 }
2576
2577 return genlmsg_reply(msg, info);
55682965
JB		 2578}
2579
2580static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2581{
4c476991 2582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2583 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2584
4c476991
JB		 2585 if (!rdev->ops->del_virtual_intf)
2586 return -EOPNOTSUPP;
55682965 2587
84efbb84
JB		 2588 /*
2589 * If we remove a wireless device without a netdev then clear
2590 * user_ptr[1] so that nl80211_post_doit won't dereference it
2591 * to check if it needs to do dev_put(). Otherwise it crashes
2592 * since the wdev has been freed, unlike with a netdev where
2593 * we need the dev_put() for the netdev to really be freed.
2594 */
2595 if (!wdev->netdev)
2596 info->user_ptr[1] = NULL;
2597
e35e4d28 2598 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2599}
2600
1d9d9213
SW		 2601static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2602{
2603 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2604 struct net_device *dev = info->user_ptr[1];
2605 u16 noack_map;
2606
2607 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2608 return -EINVAL;
2609
2610 if (!rdev->ops->set_noack_map)
2611 return -EOPNOTSUPP;
2612
2613 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2614
e35e4d28 2615 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2616}
2617
41ade00f
JB		 2618struct get_key_cookie {
2619 struct sk_buff *msg;
2620 int error;
b9454e83 2621 int idx;
41ade00f
JB		 2622};
2623
2624static void get_key_callback(void *c, struct key_params *params)
2625{
b9454e83 2626 struct nlattr *key;
41ade00f
JB		 2627 struct get_key_cookie *cookie = c;
2628
9360ffd1
DM		 2629 if ((params->key &&
2630 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2631 params->key_len, params->key)) ||
2632 (params->seq &&
2633 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2634 params->seq_len, params->seq)) ||
2635 (params->cipher &&
2636 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2637 params->cipher)))
2638 goto nla_put_failure;
41ade00f 2639
b9454e83
JB		 2640 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2641 if (!key)
2642 goto nla_put_failure;
2643
9360ffd1
DM		 2644 if ((params->key &&
2645 nla_put(cookie->msg, NL80211_KEY_DATA,
2646 params->key_len, params->key)) ||
2647 (params->seq &&
2648 nla_put(cookie->msg, NL80211_KEY_SEQ,
2649 params->seq_len, params->seq)) ||
2650 (params->cipher &&
2651 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2652 params->cipher)))
2653 goto nla_put_failure;
b9454e83 2654
9360ffd1
DM		 2655 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2656 goto nla_put_failure;
b9454e83
JB		 2657
2658 nla_nest_end(cookie->msg, key);
2659
41ade00f
JB		 2660 return;
2661 nla_put_failure:
2662 cookie->error = 1;
2663}
2664
2665static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2666{
4c476991 2667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2668 int err;
4c476991 2669 struct net_device *dev = info->user_ptr[1];
41ade00f 2670 u8 key_idx = 0;
e31b8213
JB		 2671 const u8 *mac_addr = NULL;
2672 bool pairwise;
41ade00f
JB		 2673 struct get_key_cookie cookie = {
2674 .error = 0,
2675 };
2676 void *hdr;
2677 struct sk_buff *msg;
2678
2679 if (info->attrs[NL80211_ATTR_KEY_IDX])
2680 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2681
3cfcf6ac 2682 if (key_idx > 5)
41ade00f
JB		 2683 return -EINVAL;
2684
2685 if (info->attrs[NL80211_ATTR_MAC])
2686 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2687
e31b8213
JB		 2688 pairwise = !!mac_addr;
2689 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2690 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2691 if (kt >= NUM_NL80211_KEYTYPES)
2692 return -EINVAL;
2693 if (kt != NL80211_KEYTYPE_GROUP &&
2694 kt != NL80211_KEYTYPE_PAIRWISE)
2695 return -EINVAL;
2696 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2697 }
2698
4c476991
JB		 2699 if (!rdev->ops->get_key)
2700 return -EOPNOTSUPP;
41ade00f 2701
fd2120ca 2702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2703 if (!msg)
2704 return -ENOMEM;
41ade00f 2705
15e47304 2706 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2707 NL80211_CMD_NEW_KEY);
cb35fba3 2708 if (!hdr)
9fe271af 2709 goto nla_put_failure;
41ade00f
JB		 2710
2711 cookie.msg = msg;
b9454e83 2712 cookie.idx = key_idx;
41ade00f 2713
9360ffd1
DM		 2714 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2715 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2716 goto nla_put_failure;
2717 if (mac_addr &&
2718 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2719 goto nla_put_failure;
41ade00f 2720
e31b8213
JB		 2721 if (pairwise && mac_addr &&
2722 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2723 return -ENOENT;
2724
e35e4d28
HG		 2725 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2726 get_key_callback);
41ade00f
JB		 2727
2728 if (err)
6c95e2a2 2729 goto free_msg;
41ade00f
JB		 2730
2731 if (cookie.error)
2732 goto nla_put_failure;
2733
2734 genlmsg_end(msg, hdr);
4c476991 2735 return genlmsg_reply(msg, info);
41ade00f
JB		 2736
2737 nla_put_failure:
2738 err = -ENOBUFS;
6c95e2a2 2739 free_msg:
41ade00f 2740 nlmsg_free(msg);
41ade00f
JB		 2741 return err;
2742}
2743
2744static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2745{
4c476991 2746 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2747 struct key_parse key;
41ade00f 2748 int err;
4c476991 2749 struct net_device *dev = info->user_ptr[1];
41ade00f 2750
b9454e83
JB		 2751 err = nl80211_parse_key(info, &key);
2752 if (err)
2753 return err;
41ade00f 2754
b9454e83 2755 if (key.idx < 0)
41ade00f
JB		 2756 return -EINVAL;
2757
b9454e83
JB		 2758 /* only support setting default key */
2759 if (!key.def && !key.defmgmt)
41ade00f
JB		 2760 return -EINVAL;
2761
dbd2fd65 2762 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2763
dbd2fd65
JB		 2764 if (key.def) {
2765 if (!rdev->ops->set_default_key) {
2766 err = -EOPNOTSUPP;
2767 goto out;
2768 }
41ade00f 2769
dbd2fd65
JB		 2770 err = nl80211_key_allowed(dev->ieee80211_ptr);
2771 if (err)
2772 goto out;
2773
e35e4d28 2774 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2775 key.def_uni, key.def_multi);
2776
2777 if (err)
2778 goto out;
fffd0934 2779
3d23e349 2780#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2781 dev->ieee80211_ptr->wext.default_key = key.idx;
2782#endif
2783 } else {
2784 if (key.def_uni || !key.def_multi) {
2785 err = -EINVAL;
2786 goto out;
2787 }
2788
2789 if (!rdev->ops->set_default_mgmt_key) {
2790 err = -EOPNOTSUPP;
2791 goto out;
2792 }
2793
2794 err = nl80211_key_allowed(dev->ieee80211_ptr);
2795 if (err)
2796 goto out;
2797
e35e4d28 2798 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2799 if (err)
2800 goto out;
2801
2802#ifdef CONFIG_CFG80211_WEXT
2803 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2804#endif
dbd2fd65
JB		 2805 }
2806
2807 out:
fffd0934 2808 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2809
41ade00f
JB		 2810 return err;
2811}
2812
2813static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2814{
4c476991 2815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2816 int err;
4c476991 2817 struct net_device *dev = info->user_ptr[1];
b9454e83 2818 struct key_parse key;
e31b8213 2819 const u8 *mac_addr = NULL;
41ade00f 2820
b9454e83
JB		 2821 err = nl80211_parse_key(info, &key);
2822 if (err)
2823 return err;
41ade00f 2824
b9454e83 2825 if (!key.p.key)
41ade00f
JB		 2826 return -EINVAL;
2827
41ade00f
JB		 2828 if (info->attrs[NL80211_ATTR_MAC])
2829 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2830
e31b8213
JB		 2831 if (key.type == -1) {
2832 if (mac_addr)
2833 key.type = NL80211_KEYTYPE_PAIRWISE;
2834 else
2835 key.type = NL80211_KEYTYPE_GROUP;
2836 }
2837
2838 /* for now */
2839 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2840 key.type != NL80211_KEYTYPE_GROUP)
2841 return -EINVAL;
2842
4c476991
JB		 2843 if (!rdev->ops->add_key)
2844 return -EOPNOTSUPP;
25e47c18 2845
e31b8213
JB		 2846 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2847 key.type == NL80211_KEYTYPE_PAIRWISE,
2848 mac_addr))
4c476991 2849 return -EINVAL;
41ade00f 2850
fffd0934
JB		 2851 wdev_lock(dev->ieee80211_ptr);
2852 err = nl80211_key_allowed(dev->ieee80211_ptr);
2853 if (!err)
e35e4d28
HG		 2854 err = rdev_add_key(rdev, dev, key.idx,
2855 key.type == NL80211_KEYTYPE_PAIRWISE,
2856 mac_addr, &key.p);
fffd0934 2857 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2858
41ade00f
JB		 2859 return err;
2860}
2861
2862static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2863{
4c476991 2864 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2865 int err;
4c476991 2866 struct net_device *dev = info->user_ptr[1];
41ade00f 2867 u8 *mac_addr = NULL;
b9454e83 2868 struct key_parse key;
41ade00f 2869
b9454e83
JB		 2870 err = nl80211_parse_key(info, &key);
2871 if (err)
2872 return err;
41ade00f
JB		 2873
2874 if (info->attrs[NL80211_ATTR_MAC])
2875 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2876
e31b8213
JB		 2877 if (key.type == -1) {
2878 if (mac_addr)
2879 key.type = NL80211_KEYTYPE_PAIRWISE;
2880 else
2881 key.type = NL80211_KEYTYPE_GROUP;
2882 }
2883
2884 /* for now */
2885 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2886 key.type != NL80211_KEYTYPE_GROUP)
2887 return -EINVAL;
2888
4c476991
JB		 2889 if (!rdev->ops->del_key)
2890 return -EOPNOTSUPP;
41ade00f 2891
fffd0934
JB		 2892 wdev_lock(dev->ieee80211_ptr);
2893 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2894
2895 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2896 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2897 err = -ENOENT;
2898
fffd0934 2899 if (!err)
e35e4d28
HG		 2900 err = rdev_del_key(rdev, dev, key.idx,
2901 key.type == NL80211_KEYTYPE_PAIRWISE,
2902 mac_addr);
41ade00f 2903
3d23e349 2904#ifdef CONFIG_CFG80211_WEXT
08645126 2905 if (!err) {
b9454e83 2906 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2907 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2908 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2909 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2910 }
2911#endif
fffd0934 2912 wdev_unlock(dev->ieee80211_ptr);
08645126 2913
41ade00f
JB		 2914 return err;
2915}
2916
77765eaf
VT		 2917/* This function returns an error or the number of nested attributes */
2918static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2919{
2920 struct nlattr *attr;
2921 int n_entries = 0, tmp;
2922
2923 nla_for_each_nested(attr, nl_attr, tmp) {
2924 if (nla_len(attr) != ETH_ALEN)
2925 return -EINVAL;
2926
2927 n_entries++;
2928 }
2929
2930 return n_entries;
2931}
2932
2933/*
2934 * This function parses ACL information and allocates memory for ACL data.
2935 * On successful return, the calling function is responsible to free the
2936 * ACL buffer returned by this function.
2937 */
2938static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2939 struct genl_info *info)
2940{
2941 enum nl80211_acl_policy acl_policy;
2942 struct nlattr *attr;
2943 struct cfg80211_acl_data *acl;
2944 int i = 0, n_entries, tmp;
2945
2946 if (!wiphy->max_acl_mac_addrs)
2947 return ERR_PTR(-EOPNOTSUPP);
2948
2949 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2950 return ERR_PTR(-EINVAL);
2951
2952 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2953 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2954 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2955 return ERR_PTR(-EINVAL);
2956
2957 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2958 return ERR_PTR(-EINVAL);
2959
2960 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2961 if (n_entries < 0)
2962 return ERR_PTR(n_entries);
2963
2964 if (n_entries > wiphy->max_acl_mac_addrs)
2965 return ERR_PTR(-ENOTSUPP);
2966
2967 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2968 GFP_KERNEL);
2969 if (!acl)
2970 return ERR_PTR(-ENOMEM);
2971
2972 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2973 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2974 i++;
2975 }
2976
2977 acl->n_acl_entries = n_entries;
2978 acl->acl_policy = acl_policy;
2979
2980 return acl;
2981}
2982
2983static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2984{
2985 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2986 struct net_device *dev = info->user_ptr[1];
2987 struct cfg80211_acl_data *acl;
2988 int err;
2989
2990 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2991 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2992 return -EOPNOTSUPP;
2993
2994 if (!dev->ieee80211_ptr->beacon_interval)
2995 return -EINVAL;
2996
2997 acl = parse_acl_data(&rdev->wiphy, info);
2998 if (IS_ERR(acl))
2999 return PTR_ERR(acl);
3000
3001 err = rdev_set_mac_acl(rdev, dev, acl);
3002
3003 kfree(acl);
3004
3005 return err;
3006}
3007
a1193be8 3008static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3009 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3010{
8860020e 3011 bool haveinfo = false;
ed1b6cc7 3012
a1193be8
SW		 3013 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3014 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3015 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3016 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3017 return -EINVAL;
3018
8860020e 3019 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3020
a1193be8
SW		 3021 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3022 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3023 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3024 if (!bcn->head_len)
3025 return -EINVAL;
3026 haveinfo = true;
ed1b6cc7
JB		 3027 }
3028
a1193be8
SW		 3029 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3030 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3031 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3032 haveinfo = true;
ed1b6cc7
JB		 3033 }
3034
4c476991
JB		 3035 if (!haveinfo)
3036 return -EINVAL;
3b85875a 3037
a1193be8
SW		 3038 if (attrs[NL80211_ATTR_IE]) {
3039 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3040 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3041 }
3042
a1193be8 3043 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3044 bcn->proberesp_ies =
a1193be8 3045 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3046 bcn->proberesp_ies_len =
a1193be8 3047 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3048 }
3049
a1193be8 3050 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3051 bcn->assocresp_ies =
a1193be8 3052 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3053 bcn->assocresp_ies_len =
a1193be8 3054 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3055 }
3056
a1193be8
SW		 3057 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3058 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3059 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3060 }
3061
8860020e
JB		 3062 return 0;
3063}
3064
46c1dd0c
FF		 3065static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3066 struct cfg80211_ap_settings *params)
3067{
3068 struct wireless_dev *wdev;
3069 bool ret = false;
3070
89a54e48 3071 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3072 if (wdev->iftype != NL80211_IFTYPE_AP &&
3073 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3074 continue;
3075
683b6d3b 3076 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3077 continue;
3078
683b6d3b 3079 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3080 ret = true;
3081 break;
3082 }
3083
46c1dd0c
FF		 3084 return ret;
3085}
3086
e39e5b5e
JM		 3087static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3088 enum nl80211_auth_type auth_type,
3089 enum nl80211_commands cmd)
3090{
3091 if (auth_type > NL80211_AUTHTYPE_MAX)
3092 return false;
3093
3094 switch (cmd) {
3095 case NL80211_CMD_AUTHENTICATE:
3096 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3097 auth_type == NL80211_AUTHTYPE_SAE)
3098 return false;
3099 return true;
3100 case NL80211_CMD_CONNECT:
3101 case NL80211_CMD_START_AP:
3102 /* SAE not supported yet */
3103 if (auth_type == NL80211_AUTHTYPE_SAE)
3104 return false;
3105 return true;
3106 default:
3107 return false;
3108 }
3109}
3110
8860020e
JB		 3111static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3112{
3113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3114 struct net_device *dev = info->user_ptr[1];
3115 struct wireless_dev *wdev = dev->ieee80211_ptr;
3116 struct cfg80211_ap_settings params;
3117 int err;
04f39047 3118 u8 radar_detect_width = 0;
8860020e
JB		 3119
3120 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3121 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3122 return -EOPNOTSUPP;
3123
3124 if (!rdev->ops->start_ap)
3125 return -EOPNOTSUPP;
3126
3127 if (wdev->beacon_interval)
3128 return -EALREADY;
3129
3130 memset(&params, 0, sizeof(params));
3131
3132 /* these are required for START_AP */
3133 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3134 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3135 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3136 return -EINVAL;
3137
a1193be8 3138 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3139 if (err)
3140 return err;
3141
3142 params.beacon_interval =
3143 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3144 params.dtim_period =
3145 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3146
3147 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3148 if (err)
3149 return err;
3150
3151 /*
3152 * In theory, some of these attributes should be required here
3153 * but since they were not used when the command was originally
3154 * added, keep them optional for old user space programs to let
3155 * them continue to work with drivers that do not need the
3156 * additional information -- drivers must check!
3157 */
3158 if (info->attrs[NL80211_ATTR_SSID]) {
3159 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3160 params.ssid_len =
3161 nla_len(info->attrs[NL80211_ATTR_SSID]);
3162 if (params.ssid_len == 0 ||
3163 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3164 return -EINVAL;
3165 }
3166
3167 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3168 params.hidden_ssid = nla_get_u32(
3169 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3170 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3171 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3172 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3173 return -EINVAL;
3174 }
3175
3176 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3177
3178 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3179 params.auth_type = nla_get_u32(
3180 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3181 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3182 NL80211_CMD_START_AP))
8860020e
JB		 3183 return -EINVAL;
3184 } else
3185 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3186
3187 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3188 NL80211_MAX_NR_CIPHER_SUITES);
3189 if (err)
3190 return err;
3191
1b658f11
VT		 3192 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3193 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3194 return -EOPNOTSUPP;
3195 params.inactivity_timeout = nla_get_u16(
3196 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3197 }
3198
53cabad7
JB		 3199 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3200 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3201 return -EINVAL;
3202 params.p2p_ctwindow =
3203 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3204 if (params.p2p_ctwindow > 127)
3205 return -EINVAL;
3206 if (params.p2p_ctwindow != 0 &&
3207 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3208 return -EINVAL;
3209 }
3210
3211 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3212 u8 tmp;
3213
3214 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3215 return -EINVAL;
3216 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3217 if (tmp > 1)
3218 return -EINVAL;
3219 params.p2p_opp_ps = tmp;
3220 if (params.p2p_opp_ps != 0 &&
3221 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3222 return -EINVAL;
3223 }
3224
aa430da4 3225 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3226 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3227 if (err)
3228 return err;
3229 } else if (wdev->preset_chandef.chan) {
3230 params.chandef = wdev->preset_chandef;
46c1dd0c 3231 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3232 return -EINVAL;
3233
683b6d3b 3234 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3235 return -EINVAL;
3236
04f39047
SW		 3237 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3238 if (err < 0)
3239 return err;
3240 if (err) {
3241 radar_detect_width = BIT(params.chandef.width);
3242 params.radar_required = true;
3243 }
3244
04f39047
SW		 3245 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3246 params.chandef.chan,
3247 CHAN_MODE_SHARED,
3248 radar_detect_width);
e4e32459
MK		 3249 if (err)
3250 return err;
3251
77765eaf
VT		 3252 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3253 params.acl = parse_acl_data(&rdev->wiphy, info);
3254 if (IS_ERR(params.acl))
3255 return PTR_ERR(params.acl);
3256 }
3257
c56589ed 3258 wdev_lock(wdev);
e35e4d28 3259 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3260 if (!err) {
683b6d3b 3261 wdev->preset_chandef = params.chandef;
8860020e 3262 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3263 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3264 wdev->ssid_len = params.ssid_len;
3265 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3266 }
c56589ed 3267 wdev_unlock(wdev);
77765eaf
VT		 3268
3269 kfree(params.acl);
3270
56d1893d 3271 return err;
ed1b6cc7
JB		 3272}
3273
8860020e
JB		 3274static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3275{
3276 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3277 struct net_device *dev = info->user_ptr[1];
3278 struct wireless_dev *wdev = dev->ieee80211_ptr;
3279 struct cfg80211_beacon_data params;
3280 int err;
3281
3282 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3283 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3284 return -EOPNOTSUPP;
3285
3286 if (!rdev->ops->change_beacon)
3287 return -EOPNOTSUPP;
3288
3289 if (!wdev->beacon_interval)
3290 return -EINVAL;
3291
a1193be8 3292 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3293 if (err)
3294 return err;
3295
c56589ed
SW		 3296 wdev_lock(wdev);
3297 err = rdev_change_beacon(rdev, dev, &params);
3298 wdev_unlock(wdev);
3299
3300 return err;
8860020e
JB		 3301}
3302
3303static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3304{
4c476991
JB		 3305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3306 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3307
60771780 3308 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3309}
3310
5727ef1b
JB		 3311static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3312 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3313 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3314 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3315 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3316 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3317 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3318};
3319
eccb8e8f 3320static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3321 enum nl80211_iftype iftype,
eccb8e8f 3322 struct station_parameters *params)
5727ef1b
JB		 3323{
3324 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3325 struct nlattr *nla;
5727ef1b
JB		 3326 int flag;
3327
eccb8e8f
JB		 3328 /*
3329 * Try parsing the new attribute first so userspace
3330 * can specify both for older kernels.
3331 */
3332 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3333 if (nla) {
3334 struct nl80211_sta_flag_update *sta_flags;
3335
3336 sta_flags = nla_data(nla);
3337 params->sta_flags_mask = sta_flags->mask;
3338 params->sta_flags_set = sta_flags->set;
77ee7c89 3339 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3340 if ((params->sta_flags_mask |
3341 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3342 return -EINVAL;
3343 return 0;
3344 }
3345
3346 /* if present, parse the old attribute */
5727ef1b 3347
eccb8e8f 3348 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3349 if (!nla)
3350 return 0;
3351
3352 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3353 nla, sta_flags_policy))
3354 return -EINVAL;
3355
bdd3ae3d
JB		 3356 /*
3357 * Only allow certain flags for interface types so that
3358 * other attributes are silently ignored. Remember that
3359 * this is backward compatibility code with old userspace
3360 * and shouldn't be hit in other cases anyway.
3361 */
3362 switch (iftype) {
3363 case NL80211_IFTYPE_AP:
3364 case NL80211_IFTYPE_AP_VLAN:
3365 case NL80211_IFTYPE_P2P_GO:
3366 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3367 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3368 BIT(NL80211_STA_FLAG_WME) |
3369 BIT(NL80211_STA_FLAG_MFP);
3370 break;
3371 case NL80211_IFTYPE_P2P_CLIENT:
3372 case NL80211_IFTYPE_STATION:
3373 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3374 BIT(NL80211_STA_FLAG_TDLS_PEER);
3375 break;
3376 case NL80211_IFTYPE_MESH_POINT:
3377 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3378 BIT(NL80211_STA_FLAG_MFP) |
3379 BIT(NL80211_STA_FLAG_AUTHORIZED);
3380 default:
3381 return -EINVAL;
3382 }
5727ef1b 3383
3383b5a6
JB		 3384 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3385 if (flags[flag]) {
eccb8e8f 3386 params->sta_flags_set |= (1<<flag);
5727ef1b 3387
3383b5a6
JB		 3388 /* no longer support new API additions in old API */
3389 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3390 return -EINVAL;
3391 }
3392 }
3393
5727ef1b
JB		 3394 return 0;
3395}
3396
c8dcfd8a
FF		 3397static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3398 int attr)
3399{
3400 struct nlattr *rate;
8eb41c8d
VK		 3401 u32 bitrate;
3402 u16 bitrate_compat;
c8dcfd8a
FF		 3403
3404 rate = nla_nest_start(msg, attr);
3405 if (!rate)
db9c64cf 3406 return false;
c8dcfd8a
FF		 3407
3408 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3409 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3410 /* report 16-bit bitrate only if we can */
3411 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3412 if (bitrate > 0 &&
3413 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3414 return false;
3415 if (bitrate_compat > 0 &&
3416 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3417 return false;
3418
3419 if (info->flags & RATE_INFO_FLAGS_MCS) {
3420 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3421 return false;
3422 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3423 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3424 return false;
3425 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3426 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3427 return false;
3428 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3429 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3430 return false;
3431 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3432 return false;
3433 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3434 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3435 return false;
3436 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3437 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3438 return false;
3439 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3440 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3441 return false;
3442 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3443 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3444 return false;
3445 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3446 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3447 return false;
3448 }
c8dcfd8a
FF		 3449
3450 nla_nest_end(msg, rate);
3451 return true;
c8dcfd8a
FF		 3452}
3453
119363c7
FF		 3454static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3455 int id)
3456{
3457 void *attr;
3458 int i = 0;
3459
3460 if (!mask)
3461 return true;
3462
3463 attr = nla_nest_start(msg, id);
3464 if (!attr)
3465 return false;
3466
3467 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3468 if (!(mask & BIT(i)))
3469 continue;
3470
3471 if (nla_put_u8(msg, i, signal[i]))
3472 return false;
3473 }
3474
3475 nla_nest_end(msg, attr);
3476
3477 return true;
3478}
3479
15e47304 3480static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3481 int flags,
3482 struct cfg80211_registered_device *rdev,
3483 struct net_device *dev,
98b62183 3484 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3485{
3486 void *hdr;
f4263c98 3487 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3488
15e47304 3489 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3490 if (!hdr)
3491 return -1;
3492
9360ffd1
DM		 3493 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3494 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3495 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3496 goto nla_put_failure;
f5ea9120 3497
2ec600d6
LCC		 3498 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3499 if (!sinfoattr)
fd5b74dc 3500 goto nla_put_failure;
9360ffd1
DM		 3501 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3502 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3503 sinfo->connected_time))
3504 goto nla_put_failure;
3505 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3506 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3507 sinfo->inactive_time))
3508 goto nla_put_failure;
42745e03
VK		 3509 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3510 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3511 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3512 (u32)sinfo->rx_bytes))
9360ffd1 3513 goto nla_put_failure;
42745e03 3514 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3515 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3516 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3517 (u32)sinfo->tx_bytes))
3518 goto nla_put_failure;
3519 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3520 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3521 sinfo->rx_bytes))
3522 goto nla_put_failure;
3523 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3524 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3525 sinfo->tx_bytes))
3526 goto nla_put_failure;
3527 if ((sinfo->filled & STATION_INFO_LLID) &&
3528 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3529 goto nla_put_failure;
3530 if ((sinfo->filled & STATION_INFO_PLID) &&
3531 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3532 goto nla_put_failure;
3533 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3534 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3535 sinfo->plink_state))
3536 goto nla_put_failure;
66266b3a
JL		 3537 switch (rdev->wiphy.signal_type) {
3538 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3539 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3540 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3541 sinfo->signal))
3542 goto nla_put_failure;
3543 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3544 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3545 sinfo->signal_avg))
3546 goto nla_put_failure;
66266b3a
JL		 3547 break;
3548 default:
3549 break;
3550 }
119363c7
FF		 3551 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3552 if (!nl80211_put_signal(msg, sinfo->chains,
3553 sinfo->chain_signal,
3554 NL80211_STA_INFO_CHAIN_SIGNAL))
3555 goto nla_put_failure;
3556 }
3557 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3558 if (!nl80211_put_signal(msg, sinfo->chains,
3559 sinfo->chain_signal_avg,
3560 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3561 goto nla_put_failure;
3562 }
420e7fab 3563 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3564 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3565 NL80211_STA_INFO_TX_BITRATE))
3566 goto nla_put_failure;
3567 }
3568 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3569 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3570 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3571 goto nla_put_failure;
420e7fab 3572 }
9360ffd1
DM		 3573 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3574 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3575 sinfo->rx_packets))
3576 goto nla_put_failure;
3577 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3578 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3579 sinfo->tx_packets))
3580 goto nla_put_failure;
3581 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3582 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3583 sinfo->tx_retries))
3584 goto nla_put_failure;
3585 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3586 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3587 sinfo->tx_failed))
3588 goto nla_put_failure;
3589 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3590 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3591 sinfo->beacon_loss_count))
3592 goto nla_put_failure;
3b1c5a53
MP		 3593 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3594 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3595 sinfo->local_pm))
3596 goto nla_put_failure;
3597 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3598 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3599 sinfo->peer_pm))
3600 goto nla_put_failure;
3601 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3602 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3603 sinfo->nonpeer_pm))
3604 goto nla_put_failure;
f4263c98
PS		 3605 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3606 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3607 if (!bss_param)
3608 goto nla_put_failure;
3609
9360ffd1
DM		 3610 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3611 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3612 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3613 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3614 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3615 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3616 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3617 sinfo->bss_param.dtim_period) ||
3618 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3619 sinfo->bss_param.beacon_interval))
3620 goto nla_put_failure;
f4263c98
PS		 3621
3622 nla_nest_end(msg, bss_param);
3623 }
9360ffd1
DM		 3624 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3625 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3626 sizeof(struct nl80211_sta_flag_update),
3627 &sinfo->sta_flags))
3628 goto nla_put_failure;
7eab0f64
JL		 3629 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3630 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3631 sinfo->t_offset))
3632 goto nla_put_failure;
2ec600d6 3633 nla_nest_end(msg, sinfoattr);
fd5b74dc 3634
9360ffd1
DM		 3635 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3636 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3637 sinfo->assoc_req_ies))
3638 goto nla_put_failure;
50d3dfb7 3639
fd5b74dc
JB		 3640 return genlmsg_end(msg, hdr);
3641
3642 nla_put_failure:
bc3ed28c
TG		 3643 genlmsg_cancel(msg, hdr);
3644 return -EMSGSIZE;
fd5b74dc
JB		 3645}
3646
2ec600d6 3647static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3648 struct netlink_callback *cb)
2ec600d6 3649{
2ec600d6
LCC		 3650 struct station_info sinfo;
3651 struct cfg80211_registered_device *dev;
97990a06 3652 struct wireless_dev *wdev;
2ec600d6 3653 u8 mac_addr[ETH_ALEN];
97990a06 3654 int sta_idx = cb->args[2];
2ec600d6 3655 int err;
2ec600d6 3656
97990a06 3657 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3658 if (err)
3659 return err;
bba95fef 3660
97990a06
JB		 3661 if (!wdev->netdev) {
3662 err = -EINVAL;
3663 goto out_err;
3664 }
3665
bba95fef 3666 if (!dev->ops->dump_station) {
eec60b03 3667 err = -EOPNOTSUPP;
bba95fef
JB		 3668 goto out_err;
3669 }
3670
bba95fef 3671 while (1) {
f612cedf 3672 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3673 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3674 mac_addr, &sinfo);
bba95fef
JB		 3675 if (err == -ENOENT)
3676 break;
3677 if (err)
3b85875a 3678 goto out_err;
bba95fef
JB		 3679
3680 if (nl80211_send_station(skb,
15e47304 3681 NETLINK_CB(cb->skb).portid,
bba95fef 3682 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3683 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3684 &sinfo) < 0)
3685 goto out;
3686
3687 sta_idx++;
3688 }
3689
3690
3691 out:
97990a06 3692 cb->args[2] = sta_idx;
bba95fef 3693 err = skb->len;
bba95fef 3694 out_err:
97990a06 3695 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3696
3697 return err;
2ec600d6 3698}
fd5b74dc 3699
5727ef1b
JB		 3700static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3701{
4c476991
JB		 3702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3703 struct net_device *dev = info->user_ptr[1];
2ec600d6 3704 struct station_info sinfo;
fd5b74dc
JB		 3705 struct sk_buff *msg;
3706 u8 *mac_addr = NULL;
4c476991 3707 int err;
fd5b74dc 3708
2ec600d6 3709 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3710
3711 if (!info->attrs[NL80211_ATTR_MAC])
3712 return -EINVAL;
3713
3714 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3715
4c476991
JB		 3716 if (!rdev->ops->get_station)
3717 return -EOPNOTSUPP;
3b85875a 3718
e35e4d28 3719 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3720 if (err)
4c476991 3721 return err;
2ec600d6 3722
fd2120ca 3723 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3724 if (!msg)
4c476991 3725 return -ENOMEM;
fd5b74dc 3726
15e47304 3727 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3728 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3729 nlmsg_free(msg);
3730 return -ENOBUFS;
3731 }
3b85875a 3732
4c476991 3733 return genlmsg_reply(msg, info);
5727ef1b
JB		 3734}
3735
77ee7c89
JB		 3736int cfg80211_check_station_change(struct wiphy *wiphy,
3737 struct station_parameters *params,
3738 enum cfg80211_station_type statype)
3739{
3740 if (params->listen_interval != -1)
3741 return -EINVAL;
3742 if (params->aid)
3743 return -EINVAL;
3744
3745 /* When you run into this, adjust the code below for the new flag */
3746 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3747
3748 switch (statype) {
eef941e6
TP		 3749 case CFG80211_STA_MESH_PEER_KERNEL:
3750 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3751 /*
3752 * No ignoring the TDLS flag here -- the userspace mesh
3753 * code doesn't have the bug of including TDLS in the
3754 * mask everywhere.
3755 */
3756 if (params->sta_flags_mask &
3757 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3758 BIT(NL80211_STA_FLAG_MFP) |
3759 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3760 return -EINVAL;
3761 break;
3762 case CFG80211_STA_TDLS_PEER_SETUP:
3763 case CFG80211_STA_TDLS_PEER_ACTIVE:
3764 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3765 return -EINVAL;
3766 /* ignore since it can't change */
3767 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3768 break;
3769 default:
3770 /* disallow mesh-specific things */
3771 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3772 return -EINVAL;
3773 if (params->local_pm)
3774 return -EINVAL;
3775 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3776 return -EINVAL;
3777 }
3778
3779 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3780 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3781 /* TDLS can't be set, ... */
3782 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3783 return -EINVAL;
3784 /*
3785 * ... but don't bother the driver with it. This works around
3786 * a hostapd/wpa_supplicant issue -- it always includes the
3787 * TLDS_PEER flag in the mask even for AP mode.
3788 */
3789 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3790 }
3791
3792 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3793 /* reject other things that can't change */
3794 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3795 return -EINVAL;
3796 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3797 return -EINVAL;
3798 if (params->supported_rates)
3799 return -EINVAL;
3800 if (params->ext_capab || params->ht_capa || params->vht_capa)
3801 return -EINVAL;
3802 }
3803
3804 if (statype != CFG80211_STA_AP_CLIENT) {
3805 if (params->vlan)
3806 return -EINVAL;
3807 }
3808
3809 switch (statype) {
3810 case CFG80211_STA_AP_MLME_CLIENT:
3811 /* Use this only for authorizing/unauthorizing a station */
3812 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3813 return -EOPNOTSUPP;
3814 break;
3815 case CFG80211_STA_AP_CLIENT:
3816 /* accept only the listed bits */
3817 if (params->sta_flags_mask &
3818 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3819 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3820 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3821 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3822 BIT(NL80211_STA_FLAG_WME) |
3823 BIT(NL80211_STA_FLAG_MFP)))
3824 return -EINVAL;
3825
3826 /* but authenticated/associated only if driver handles it */
3827 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3828 params->sta_flags_mask &
3829 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3830 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3831 return -EINVAL;
3832 break;
3833 case CFG80211_STA_IBSS:
3834 case CFG80211_STA_AP_STA:
3835 /* reject any changes other than AUTHORIZED */
3836 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3837 return -EINVAL;
3838 break;
3839 case CFG80211_STA_TDLS_PEER_SETUP:
3840 /* reject any changes other than AUTHORIZED or WME */
3841 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3842 BIT(NL80211_STA_FLAG_WME)))
3843 return -EINVAL;
3844 /* force (at least) rates when authorizing */
3845 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3846 !params->supported_rates)
3847 return -EINVAL;
3848 break;
3849 case CFG80211_STA_TDLS_PEER_ACTIVE:
3850 /* reject any changes */
3851 return -EINVAL;
eef941e6 3852 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3853 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3854 return -EINVAL;
3855 break;
eef941e6 3856 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3857 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3858 return -EINVAL;
3859 break;
3860 }
3861
3862 return 0;
3863}
3864EXPORT_SYMBOL(cfg80211_check_station_change);
3865
5727ef1b 3866/*
c258d2de 3867 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3868 */
80b99899
JB		 3869static struct net_device *get_vlan(struct genl_info *info,
3870 struct cfg80211_registered_device *rdev)
5727ef1b 3871{
463d0183 3872 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3873 struct net_device *v;
3874 int ret;
3875
3876 if (!vlanattr)
3877 return NULL;
3878
3879 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3880 if (!v)
3881 return ERR_PTR(-ENODEV);
3882
3883 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3884 ret = -EINVAL;
3885 goto error;
5727ef1b 3886 }
80b99899 3887
77ee7c89
JB		 3888 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3889 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3890 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3891 ret = -EINVAL;
3892 goto error;
3893 }
3894
80b99899
JB		 3895 if (!netif_running(v)) {
3896 ret = -ENETDOWN;
3897 goto error;
3898 }
3899
3900 return v;
3901 error:
3902 dev_put(v);
3903 return ERR_PTR(ret);
5727ef1b
JB		 3904}
3905
df881293
JM		 3906static struct nla_policy
3907nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3908 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3909 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3910};
3911
ff276691
JB		 3912static int nl80211_parse_sta_wme(struct genl_info *info,
3913 struct station_parameters *params)
df881293 3914{
df881293
JM		 3915 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3916 struct nlattr *nla;
3917 int err;
3918
df881293
JM		 3919 /* parse WME attributes if present */
3920 if (!info->attrs[NL80211_ATTR_STA_WME])
3921 return 0;
3922
3923 nla = info->attrs[NL80211_ATTR_STA_WME];
3924 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3925 nl80211_sta_wme_policy);
3926 if (err)
3927 return err;
3928
3929 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3930 params->uapsd_queues = nla_get_u8(
3931 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3932 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3933 return -EINVAL;
3934
3935 if (tb[NL80211_STA_WME_MAX_SP])
3936 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3937
3938 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3939 return -EINVAL;
3940
3941 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3942
3943 return 0;
3944}
3945
c01fc9ad
SD		 3946static int nl80211_parse_sta_channel_info(struct genl_info *info,
3947 struct station_parameters *params)
3948{
3949 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
3950 params->supported_channels =
3951 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3952 params->supported_channels_len =
3953 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3954 /*
3955 * Need to include at least one (first channel, number of
3956 * channels) tuple for each subband, and must have proper
3957 * tuples for the rest of the data as well.
3958 */
3959 if (params->supported_channels_len < 2)
3960 return -EINVAL;
3961 if (params->supported_channels_len % 2)
3962 return -EINVAL;
3963 }
3964
3965 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
3966 params->supported_oper_classes =
3967 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3968 params->supported_oper_classes_len =
3969 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3970 /*
3971 * The value of the Length field of the Supported Operating
3972 * Classes element is between 2 and 253.
3973 */
3974 if (params->supported_oper_classes_len < 2 ||
3975 params->supported_oper_classes_len > 253)
3976 return -EINVAL;
3977 }
3978 return 0;
3979}
3980
ff276691
JB		 3981static int nl80211_set_station_tdls(struct genl_info *info,
3982 struct station_parameters *params)
3983{
c01fc9ad 3984 int err;
ff276691 3985 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 3986 if (info->attrs[NL80211_ATTR_PEER_AID])
3987 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 3988 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3989 params->ht_capa =
3990 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3991 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3992 params->vht_capa =
3993 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3994
c01fc9ad
SD		 3995 err = nl80211_parse_sta_channel_info(info, params);
3996 if (err)
3997 return err;
3998
ff276691
JB		 3999 return nl80211_parse_sta_wme(info, params);
4000}
4001
5727ef1b
JB		 4002static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4003{
4c476991 4004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4005 struct net_device *dev = info->user_ptr[1];
5727ef1b 4006 struct station_parameters params;
77ee7c89
JB		 4007 u8 *mac_addr;
4008 int err;
5727ef1b
JB		 4009
4010 memset(&params, 0, sizeof(params));
4011
4012 params.listen_interval = -1;
4013
77ee7c89
JB		 4014 if (!rdev->ops->change_station)
4015 return -EOPNOTSUPP;
4016
5727ef1b
JB		 4017 if (info->attrs[NL80211_ATTR_STA_AID])
4018 return -EINVAL;
4019
4020 if (!info->attrs[NL80211_ATTR_MAC])
4021 return -EINVAL;
4022
4023 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4024
4025 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4026 params.supported_rates =
4027 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4028 params.supported_rates_len =
4029 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4030 }
4031
9d62a986
JM		 4032 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4033 params.capability =
4034 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4035 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4036 }
4037
4038 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4039 params.ext_capab =
4040 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4041 params.ext_capab_len =
4042 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4043 }
4044
df881293 4045 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4046 return -EINVAL;
36aedc90 4047
bdd3ae3d 4048 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4049 return -EINVAL;
4050
f8bacc21 4051 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4052 params.plink_action =
f8bacc21
JB		 4053 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4054 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4055 return -EINVAL;
4056 }
2ec600d6 4057
f8bacc21 4058 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4059 params.plink_state =
f8bacc21
JB		 4060 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4061 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4062 return -EINVAL;
4063 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4064 }
9c3990aa 4065
3b1c5a53
MP		 4066 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4067 enum nl80211_mesh_power_mode pm = nla_get_u32(
4068 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4069
4070 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4071 pm > NL80211_MESH_POWER_MAX)
4072 return -EINVAL;
4073
4074 params.local_pm = pm;
4075 }
4076
77ee7c89
JB		 4077 /* Include parameters for TDLS peer (will check later) */
4078 err = nl80211_set_station_tdls(info, &params);
4079 if (err)
4080 return err;
4081
4082 params.vlan = get_vlan(info, rdev);
4083 if (IS_ERR(params.vlan))
4084 return PTR_ERR(params.vlan);
4085
a97f4424
JB		 4086 switch (dev->ieee80211_ptr->iftype) {
4087 case NL80211_IFTYPE_AP:
4088 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4089 case NL80211_IFTYPE_P2P_GO:
074ac8df 4090 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4091 case NL80211_IFTYPE_STATION:
267335d6 4092 case NL80211_IFTYPE_ADHOC:
a97f4424 4093 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4094 break;
4095 default:
77ee7c89
JB		 4096 err = -EOPNOTSUPP;
4097 goto out_put_vlan;
034d655e
JB		 4098 }
4099
77ee7c89 4100 /* driver will call cfg80211_check_station_change() */
e35e4d28 4101 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4102
77ee7c89 4103 out_put_vlan:
5727ef1b
JB		 4104 if (params.vlan)
4105 dev_put(params.vlan);
3b85875a 4106
5727ef1b
JB		 4107 return err;
4108}
4109
4110static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4111{
4c476991 4112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4113 int err;
4c476991 4114 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4115 struct station_parameters params;
4116 u8 *mac_addr = NULL;
4117
4118 memset(&params, 0, sizeof(params));
4119
984c311b
JB		 4120 if (!rdev->ops->add_station)
4121 return -EOPNOTSUPP;
4122
5727ef1b
JB		 4123 if (!info->attrs[NL80211_ATTR_MAC])
4124 return -EINVAL;
4125
5727ef1b
JB		 4126 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4127 return -EINVAL;
4128
4129 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4130 return -EINVAL;
4131
5e4b6f56
JM		 4132 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4133 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4134 return -EINVAL;
4135
5727ef1b
JB		 4136 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4137 params.supported_rates =
4138 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4139 params.supported_rates_len =
4140 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4141 params.listen_interval =
4142 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4143
3d124ea2 4144 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4145 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4146 else
4147 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4148 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4149 return -EINVAL;
51b50fbe 4150
9d62a986
JM		 4151 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4152 params.capability =
4153 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4154 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4155 }
4156
4157 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4158 params.ext_capab =
4159 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4160 params.ext_capab_len =
4161 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4162 }
4163
36aedc90
JM		 4164 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4165 params.ht_capa =
4166 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4167
f461be3e
MP		 4168 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4169 params.vht_capa =
4170 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4171
60f4a7b1
MK		 4172 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4173 params.opmode_notif_used = true;
4174 params.opmode_notif =
4175 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4176 }
4177
f8bacc21 4178 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4179 params.plink_action =
f8bacc21
JB		 4180 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4181 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4182 return -EINVAL;
4183 }
96b78dff 4184
c01fc9ad
SD		 4185 err = nl80211_parse_sta_channel_info(info, &params);
4186 if (err)
4187 return err;
4188
ff276691
JB		 4189 err = nl80211_parse_sta_wme(info, &params);
4190 if (err)
4191 return err;
bdd90d5e 4192
bdd3ae3d 4193 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4194 return -EINVAL;
4195
77ee7c89
JB		 4196 /* When you run into this, adjust the code below for the new flag */
4197 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4198
bdd90d5e
JB		 4199 switch (dev->ieee80211_ptr->iftype) {
4200 case NL80211_IFTYPE_AP:
4201 case NL80211_IFTYPE_AP_VLAN:
4202 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4203 /* ignore WME attributes if iface/sta is not capable */
4204 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4205 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4206 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4207
bdd90d5e 4208 /* TDLS peers cannot be added */
3d124ea2
JM		 4209 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4210 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4211 return -EINVAL;
bdd90d5e
JB		 4212 /* but don't bother the driver with it */
4213 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4214
d582cffb
JB		 4215 /* allow authenticated/associated only if driver handles it */
4216 if (!(rdev->wiphy.features &
4217 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4218 params.sta_flags_mask &
4219 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4220 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4221 return -EINVAL;
4222
bdd90d5e
JB		 4223 /* must be last in here for error handling */
4224 params.vlan = get_vlan(info, rdev);
4225 if (IS_ERR(params.vlan))
4226 return PTR_ERR(params.vlan);
4227 break;
4228 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4229 /* ignore uAPSD data */
4230 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4231
d582cffb
JB		 4232 /* associated is disallowed */
4233 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4234 return -EINVAL;
bdd90d5e 4235 /* TDLS peers cannot be added */
3d124ea2
JM		 4236 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4237 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4238 return -EINVAL;
4239 break;
4240 case NL80211_IFTYPE_STATION:
93d08f0b 4241 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4242 /* ignore uAPSD data */
4243 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4244
77ee7c89
JB		 4245 /* these are disallowed */
4246 if (params.sta_flags_mask &
4247 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4248 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4249 return -EINVAL;
bdd90d5e
JB		 4250 /* Only TDLS peers can be added */
4251 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4252 return -EINVAL;
4253 /* Can only add if TDLS ... */
4254 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4255 return -EOPNOTSUPP;
4256 /* ... with external setup is supported */
4257 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4258 return -EOPNOTSUPP;
77ee7c89
JB		 4259 /*
4260 * Older wpa_supplicant versions always mark the TDLS peer
4261 * as authorized, but it shouldn't yet be.
4262 */
4263 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4264 break;
4265 default:
4266 return -EOPNOTSUPP;
c75786c9
EP		 4267 }
4268
bdd90d5e 4269 /* be aware of params.vlan when changing code here */
5727ef1b 4270
e35e4d28 4271 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4272
5727ef1b
JB		 4273 if (params.vlan)
4274 dev_put(params.vlan);
5727ef1b
JB		 4275 return err;
4276}
4277
4278static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4279{
4c476991
JB		 4280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4281 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4282 u8 *mac_addr = NULL;
4283
4284 if (info->attrs[NL80211_ATTR_MAC])
4285 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4286
e80cf853 4287 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4288 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4289 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4290 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4291 return -EINVAL;
5727ef1b 4292
4c476991
JB		 4293 if (!rdev->ops->del_station)
4294 return -EOPNOTSUPP;
3b85875a 4295
e35e4d28 4296 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4297}
4298
15e47304 4299static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4300 int flags, struct net_device *dev,
4301 u8 *dst, u8 *next_hop,
4302 struct mpath_info *pinfo)
4303{
4304 void *hdr;
4305 struct nlattr *pinfoattr;
4306
15e47304 4307 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4308 if (!hdr)
4309 return -1;
4310
9360ffd1
DM		 4311 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4312 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4313 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4314 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4315 goto nla_put_failure;
f5ea9120 4316
2ec600d6
LCC		 4317 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4318 if (!pinfoattr)
4319 goto nla_put_failure;
9360ffd1
DM		 4320 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4321 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4322 pinfo->frame_qlen))
4323 goto nla_put_failure;
4324 if (((pinfo->filled & MPATH_INFO_SN) &&
4325 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4326 ((pinfo->filled & MPATH_INFO_METRIC) &&
4327 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4328 pinfo->metric)) ||
4329 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4330 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4331 pinfo->exptime)) ||
4332 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4333 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4334 pinfo->flags)) ||
4335 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4336 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4337 pinfo->discovery_timeout)) ||
4338 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4339 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4340 pinfo->discovery_retries)))
4341 goto nla_put_failure;
2ec600d6
LCC		 4342
4343 nla_nest_end(msg, pinfoattr);
4344
4345 return genlmsg_end(msg, hdr);
4346
4347 nla_put_failure:
bc3ed28c
TG		 4348 genlmsg_cancel(msg, hdr);
4349 return -EMSGSIZE;
2ec600d6
LCC		 4350}
4351
4352static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4353 struct netlink_callback *cb)
2ec600d6 4354{
2ec600d6
LCC		 4355 struct mpath_info pinfo;
4356 struct cfg80211_registered_device *dev;
97990a06 4357 struct wireless_dev *wdev;
2ec600d6
LCC		 4358 u8 dst[ETH_ALEN];
4359 u8 next_hop[ETH_ALEN];
97990a06 4360 int path_idx = cb->args[2];
2ec600d6 4361 int err;
2ec600d6 4362
97990a06 4363 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4364 if (err)
4365 return err;
bba95fef
JB		 4366
4367 if (!dev->ops->dump_mpath) {
eec60b03 4368 err = -EOPNOTSUPP;
bba95fef
JB		 4369 goto out_err;
4370 }
4371
97990a06 4372 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4373 err = -EOPNOTSUPP;
0448b5fc 4374 goto out_err;
eec60b03
JM		 4375 }
4376
bba95fef 4377 while (1) {
97990a06
JB		 4378 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4379 next_hop, &pinfo);
bba95fef 4380 if (err == -ENOENT)
2ec600d6 4381 break;
bba95fef 4382 if (err)
3b85875a 4383 goto out_err;
2ec600d6 4384
15e47304 4385 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4386 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4387 wdev->netdev, dst, next_hop,
bba95fef
JB		 4388 &pinfo) < 0)
4389 goto out;
2ec600d6 4390
bba95fef 4391 path_idx++;
2ec600d6 4392 }
2ec600d6 4393
2ec600d6 4394
bba95fef 4395 out:
97990a06 4396 cb->args[2] = path_idx;
bba95fef 4397 err = skb->len;
bba95fef 4398 out_err:
97990a06 4399 nl80211_finish_wdev_dump(dev);
bba95fef 4400 return err;
2ec600d6
LCC		 4401}
4402
4403static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4404{
4c476991 4405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4406 int err;
4c476991 4407 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4408 struct mpath_info pinfo;
4409 struct sk_buff *msg;
4410 u8 *dst = NULL;
4411 u8 next_hop[ETH_ALEN];
4412
4413 memset(&pinfo, 0, sizeof(pinfo));
4414
4415 if (!info->attrs[NL80211_ATTR_MAC])
4416 return -EINVAL;
4417
4418 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4419
4c476991
JB		 4420 if (!rdev->ops->get_mpath)
4421 return -EOPNOTSUPP;
2ec600d6 4422
4c476991
JB		 4423 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4424 return -EOPNOTSUPP;
eec60b03 4425
e35e4d28 4426 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4427 if (err)
4c476991 4428 return err;
2ec600d6 4429
fd2120ca 4430 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4431 if (!msg)
4c476991 4432 return -ENOMEM;
2ec600d6 4433
15e47304 4434 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4435 dev, dst, next_hop, &pinfo) < 0) {
4436 nlmsg_free(msg);
4437 return -ENOBUFS;
4438 }
3b85875a 4439
4c476991 4440 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4441}
4442
4443static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4444{
4c476991
JB		 4445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4446 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4447 u8 *dst = NULL;
4448 u8 *next_hop = NULL;
4449
4450 if (!info->attrs[NL80211_ATTR_MAC])
4451 return -EINVAL;
4452
4453 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4454 return -EINVAL;
4455
4456 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4457 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4458
4c476991
JB		 4459 if (!rdev->ops->change_mpath)
4460 return -EOPNOTSUPP;
35a8efe1 4461
4c476991
JB		 4462 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4463 return -EOPNOTSUPP;
2ec600d6 4464
e35e4d28 4465 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4466}
4c476991 4467
2ec600d6
LCC		 4468static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4469{
4c476991
JB		 4470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4471 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4472 u8 *dst = NULL;
4473 u8 *next_hop = NULL;
4474
4475 if (!info->attrs[NL80211_ATTR_MAC])
4476 return -EINVAL;
4477
4478 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4479 return -EINVAL;
4480
4481 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4482 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4483
4c476991
JB		 4484 if (!rdev->ops->add_mpath)
4485 return -EOPNOTSUPP;
35a8efe1 4486
4c476991
JB		 4487 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4488 return -EOPNOTSUPP;
2ec600d6 4489
e35e4d28 4490 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4491}
4492
4493static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4494{
4c476991
JB		 4495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4496 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4497 u8 *dst = NULL;
4498
4499 if (info->attrs[NL80211_ATTR_MAC])
4500 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4501
4c476991
JB		 4502 if (!rdev->ops->del_mpath)
4503 return -EOPNOTSUPP;
3b85875a 4504
e35e4d28 4505 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4506}
4507
9f1ba906
JM		 4508static int nl80211_set_bss(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];
c56589ed 4512 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4513 struct bss_parameters params;
c56589ed 4514 int err;
9f1ba906
JM		 4515
4516 memset(&params, 0, sizeof(params));
4517 /* default to not changing parameters */
4518 params.use_cts_prot = -1;
4519 params.use_short_preamble = -1;
4520 params.use_short_slot_time = -1;
fd8aaaf3 4521 params.ap_isolate = -1;
50b12f59 4522 params.ht_opmode = -1;
53cabad7
JB		 4523 params.p2p_ctwindow = -1;
4524 params.p2p_opp_ps = -1;
9f1ba906
JM		 4525
4526 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4527 params.use_cts_prot =
4528 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4529 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4530 params.use_short_preamble =
4531 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4532 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4533 params.use_short_slot_time =
4534 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4535 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4536 params.basic_rates =
4537 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4538 params.basic_rates_len =
4539 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4540 }
fd8aaaf3
FF		 4541 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4542 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4543 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4544 params.ht_opmode =
4545 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4546
53cabad7
JB		 4547 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4548 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4549 return -EINVAL;
4550 params.p2p_ctwindow =
4551 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4552 if (params.p2p_ctwindow < 0)
4553 return -EINVAL;
4554 if (params.p2p_ctwindow != 0 &&
4555 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4556 return -EINVAL;
4557 }
4558
4559 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4560 u8 tmp;
4561
4562 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4563 return -EINVAL;
4564 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4565 if (tmp > 1)
4566 return -EINVAL;
4567 params.p2p_opp_ps = tmp;
4568 if (params.p2p_opp_ps &&
4569 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4570 return -EINVAL;
4571 }
4572
4c476991
JB		 4573 if (!rdev->ops->change_bss)
4574 return -EOPNOTSUPP;
9f1ba906 4575
074ac8df 4576 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4577 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4578 return -EOPNOTSUPP;
3b85875a 4579
c56589ed
SW		 4580 wdev_lock(wdev);
4581 err = rdev_change_bss(rdev, dev, &params);
4582 wdev_unlock(wdev);
4583
4584 return err;
9f1ba906
JM		 4585}
4586
b54452b0 4587static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4588 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4589 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4590 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4591 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4592 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4593 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4594};
4595
4596static int parse_reg_rule(struct nlattr *tb[],
4597 struct ieee80211_reg_rule *reg_rule)
4598{
4599 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4600 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4601
4602 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4603 return -EINVAL;
4604 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4605 return -EINVAL;
4606 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4607 return -EINVAL;
4608 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4609 return -EINVAL;
4610 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4611 return -EINVAL;
4612
4613 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4614
4615 freq_range->start_freq_khz =
4616 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4617 freq_range->end_freq_khz =
4618 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4619 freq_range->max_bandwidth_khz =
4620 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4621
4622 power_rule->max_eirp =
4623 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4624
4625 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4626 power_rule->max_antenna_gain =
4627 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4628
4629 return 0;
4630}
4631
4632static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4633{
4634 int r;
4635 char *data = NULL;
57b5ce07 4636 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4637
80778f18
LR		 4638 /*
4639 * You should only get this when cfg80211 hasn't yet initialized
4640 * completely when built-in to the kernel right between the time
4641 * window between nl80211_init() and regulatory_init(), if that is
4642 * even possible.
4643 */
458f4f9e 4644 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4645 return -EINPROGRESS;
80778f18 4646
fe33eb39
LR		 4647 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4648 return -EINVAL;
b2e1b302
LR		 4649
4650 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4651
57b5ce07
LR		 4652 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4653 user_reg_hint_type =
4654 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4655 else
4656 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4657
4658 switch (user_reg_hint_type) {
4659 case NL80211_USER_REG_HINT_USER:
4660 case NL80211_USER_REG_HINT_CELL_BASE:
4661 break;
4662 default:
4663 return -EINVAL;
4664 }
4665
4666 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4667
b2e1b302
LR		 4668 return r;
4669}
4670
24bdd9f4 4671static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4672 struct genl_info *info)
93da9cc1 4673{
4c476991 4674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4675 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4676 struct wireless_dev *wdev = dev->ieee80211_ptr;
4677 struct mesh_config cur_params;
4678 int err = 0;
93da9cc1 4679 void *hdr;
4680 struct nlattr *pinfoattr;
4681 struct sk_buff *msg;
4682
29cbe68c
JB		 4683 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4684 return -EOPNOTSUPP;
4685
24bdd9f4 4686 if (!rdev->ops->get_mesh_config)
4c476991 4687 return -EOPNOTSUPP;
f3f92586 4688
29cbe68c
JB		 4689 wdev_lock(wdev);
4690 /* If not connected, get default parameters */
4691 if (!wdev->mesh_id_len)
4692 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4693 else
e35e4d28 4694 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4695 wdev_unlock(wdev);
4696
93da9cc1 4697 if (err)
4c476991 4698 return err;
93da9cc1 4699
4700 /* Draw up a netlink message to send back */
fd2120ca 4701 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4702 if (!msg)
4703 return -ENOMEM;
15e47304 4704 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4705 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4706 if (!hdr)
efe1cf0c 4707 goto out;
24bdd9f4 4708 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4709 if (!pinfoattr)
4710 goto nla_put_failure;
9360ffd1
DM		 4711 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4712 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4713 cur_params.dot11MeshRetryTimeout) ||
4714 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4715 cur_params.dot11MeshConfirmTimeout) ||
4716 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4717 cur_params.dot11MeshHoldingTimeout) ||
4718 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4719 cur_params.dot11MeshMaxPeerLinks) ||
4720 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4721 cur_params.dot11MeshMaxRetries) ||
4722 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4723 cur_params.dot11MeshTTL) ||
4724 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4725 cur_params.element_ttl) ||
4726 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4727 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4728 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4729 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4730 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4731 cur_params.dot11MeshHWMPmaxPREQretries) ||
4732 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4733 cur_params.path_refresh_time) ||
4734 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4735 cur_params.min_discovery_timeout) ||
4736 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4737 cur_params.dot11MeshHWMPactivePathTimeout) ||
4738 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4739 cur_params.dot11MeshHWMPpreqMinInterval) ||
4740 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4741 cur_params.dot11MeshHWMPperrMinInterval) ||
4742 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4743 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4744 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4745 cur_params.dot11MeshHWMPRootMode) ||
4746 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4747 cur_params.dot11MeshHWMPRannInterval) ||
4748 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4749 cur_params.dot11MeshGateAnnouncementProtocol) ||
4750 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4751 cur_params.dot11MeshForwarding) ||
4752 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4753 cur_params.rssi_threshold) ||
4754 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4755 cur_params.ht_opmode) ||
4756 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4757 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4758 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4759 cur_params.dot11MeshHWMProotInterval) ||
4760 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4761 cur_params.dot11MeshHWMPconfirmationInterval) ||
4762 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4763 cur_params.power_mode) ||
4764 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4765 cur_params.dot11MeshAwakeWindowDuration) ||
4766 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4767 cur_params.plink_timeout))
9360ffd1 4768 goto nla_put_failure;
93da9cc1 4769 nla_nest_end(msg, pinfoattr);
4770 genlmsg_end(msg, hdr);
4c476991 4771 return genlmsg_reply(msg, info);
93da9cc1 4772
3b85875a 4773 nla_put_failure:
93da9cc1 4774 genlmsg_cancel(msg, hdr);
efe1cf0c 4775 out:
d080e275 4776 nlmsg_free(msg);
4c476991 4777 return -ENOBUFS;
93da9cc1 4778}
4779
b54452b0 4780static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4781 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4782 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4783 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4784 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4785 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4786 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4787 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4788 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4789 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4790 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4791 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4792 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4793 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4794 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4795 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4796 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4797 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4798 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4799 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4800 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4801 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4802 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4803 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4804 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4805 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4806 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4807 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4808 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4809};
4810
c80d545d
JC		 4811static const struct nla_policy
4812 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4813 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4814 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4815 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4816 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4817 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4818 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4819 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4820 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4821 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4822};
4823
24bdd9f4 4824static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4825 struct mesh_config *cfg,
4826 u32 *mask_out)
93da9cc1 4827{
93da9cc1 4828 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4829 u32 mask = 0;
93da9cc1 4830
ea54fba2
MP		 4831#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4832do { \
4833 if (tb[attr]) { \
4834 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4835 return -EINVAL; \
4836 cfg->param = fn(tb[attr]); \
4837 mask |= (1 << (attr - 1)); \
4838 } \
4839} while (0)
bd90fdcc
JB		 4840
4841
24bdd9f4 4842 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4843 return -EINVAL;
4844 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4845 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4846 nl80211_meshconf_params_policy))
93da9cc1 4847 return -EINVAL;
4848
93da9cc1 4849 /* This makes sure that there aren't more than 32 mesh config
4850 * parameters (otherwise our bitfield scheme would not work.) */
4851 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4852
4853 /* Fill in the params struct */
ea54fba2 4854 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4855 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4856 nla_get_u16);
ea54fba2 4857 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4858 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4859 nla_get_u16);
ea54fba2 4860 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4861 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4862 nla_get_u16);
ea54fba2 4863 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4864 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4865 nla_get_u16);
ea54fba2 4866 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4867 mask, NL80211_MESHCONF_MAX_RETRIES,
4868 nla_get_u8);
ea54fba2 4869 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4870 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4871 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4872 mask, NL80211_MESHCONF_ELEMENT_TTL,
4873 nla_get_u8);
ea54fba2 4874 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4875 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4876 nla_get_u8);
ea54fba2
MP		 4877 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4878 1, 255, mask,
a4f606ea
CYY		 4879 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4880 nla_get_u32);
ea54fba2 4881 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4882 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4883 nla_get_u8);
ea54fba2 4884 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4885 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4886 nla_get_u32);
ea54fba2 4887 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4888 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4889 nla_get_u16);
ea54fba2
MP		 4890 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4891 1, 65535, mask,
a4f606ea
CYY		 4892 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4893 nla_get_u32);
93da9cc1 4894 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4895 1, 65535, mask,
4896 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4897 nla_get_u16);
dca7e943 4898 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4899 1, 65535, mask,
4900 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4901 nla_get_u16);
93da9cc1 4902 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4903 dot11MeshHWMPnetDiameterTraversalTime,
4904 1, 65535, mask,
a4f606ea
CYY		 4905 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4906 nla_get_u16);
ea54fba2
MP		 4907 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4908 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4909 nla_get_u8);
4910 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4911 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4912 nla_get_u16);
63c5723b 4913 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4914 dot11MeshGateAnnouncementProtocol, 0, 1,
4915 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4916 nla_get_u8);
ea54fba2 4917 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4918 mask, NL80211_MESHCONF_FORWARDING,
4919 nla_get_u8);
83374fe9 4920 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4921 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4922 nla_get_s32);
ea54fba2 4923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4924 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4925 nla_get_u16);
4926 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4927 1, 65535, mask,
ac1073a6
CYY		 4928 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4929 nla_get_u32);
ea54fba2 4930 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4931 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4932 nla_get_u16);
4933 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4934 dot11MeshHWMPconfirmationInterval,
4935 1, 65535, mask,
728b19e5 4936 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4937 nla_get_u16);
3b1c5a53
MP		 4938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4939 NL80211_MESH_POWER_ACTIVE,
4940 NL80211_MESH_POWER_MAX,
4941 mask, NL80211_MESHCONF_POWER_MODE,
4942 nla_get_u32);
4943 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4944 0, 65535, mask,
4945 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 4946 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4947 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4948 nla_get_u32);
bd90fdcc
JB		 4949 if (mask_out)
4950 *mask_out = mask;
c80d545d 4951
bd90fdcc
JB		 4952 return 0;
4953
4954#undef FILL_IN_MESH_PARAM_IF_SET
4955}
4956
c80d545d
JC		 4957static int nl80211_parse_mesh_setup(struct genl_info *info,
4958 struct mesh_setup *setup)
4959{
bb2798d4 4960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4961 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4962
4963 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4964 return -EINVAL;
4965 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4966 info->attrs[NL80211_ATTR_MESH_SETUP],
4967 nl80211_mesh_setup_params_policy))
4968 return -EINVAL;
4969
d299a1f2
JC		 4970 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4971 setup->sync_method =
4972 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4973 IEEE80211_SYNC_METHOD_VENDOR :
4974 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4975
c80d545d
JC		 4976 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4977 setup->path_sel_proto =
4978 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4979 IEEE80211_PATH_PROTOCOL_VENDOR :
4980 IEEE80211_PATH_PROTOCOL_HWMP;
4981
4982 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4983 setup->path_metric =
4984 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4985 IEEE80211_PATH_METRIC_VENDOR :
4986 IEEE80211_PATH_METRIC_AIRTIME;
4987
581a8b0f
JC		 4988
4989 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4990 struct nlattr *ieattr =
581a8b0f 4991 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4992 if (!is_valid_ie_attr(ieattr))
4993 return -EINVAL;
581a8b0f
JC		 4994 setup->ie = nla_data(ieattr);
4995 setup->ie_len = nla_len(ieattr);
c80d545d 4996 }
bb2798d4
TP		 4997 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4998 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4999 return -EINVAL;
5000 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5001 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5002 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5003 if (setup->is_secure)
5004 setup->user_mpm = true;
c80d545d 5005
6e16d90b
CT		 5006 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5007 if (!setup->user_mpm)
5008 return -EINVAL;
5009 setup->auth_id =
5010 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5011 }
5012
c80d545d
JC		 5013 return 0;
5014}
5015
24bdd9f4 5016static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5017 struct genl_info *info)
bd90fdcc
JB		 5018{
5019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5020 struct net_device *dev = info->user_ptr[1];
29cbe68c 5021 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5022 struct mesh_config cfg;
5023 u32 mask;
5024 int err;
5025
29cbe68c
JB		 5026 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5027 return -EOPNOTSUPP;
5028
24bdd9f4 5029 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5030 return -EOPNOTSUPP;
5031
24bdd9f4 5032 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5033 if (err)
5034 return err;
5035
29cbe68c
JB		 5036 wdev_lock(wdev);
5037 if (!wdev->mesh_id_len)
5038 err = -ENOLINK;
5039
5040 if (!err)
e35e4d28 5041 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5042
5043 wdev_unlock(wdev);
5044
5045 return err;
93da9cc1 5046}
5047
f130347c
LR		 5048static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5049{
458f4f9e 5050 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5051 struct sk_buff *msg;
5052 void *hdr = NULL;
5053 struct nlattr *nl_reg_rules;
5054 unsigned int i;
f130347c
LR		 5055
5056 if (!cfg80211_regdomain)
5fe231e8 5057 return -EINVAL;
f130347c 5058
fd2120ca 5059 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5060 if (!msg)
5061 return -ENOBUFS;
f130347c 5062
15e47304 5063 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5064 NL80211_CMD_GET_REG);
5065 if (!hdr)
efe1cf0c 5066 goto put_failure;
f130347c 5067
57b5ce07
LR		 5068 if (reg_last_request_cell_base() &&
5069 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5070 NL80211_USER_REG_HINT_CELL_BASE))
5071 goto nla_put_failure;
5072
458f4f9e
JB		 5073 rcu_read_lock();
5074 regdom = rcu_dereference(cfg80211_regdomain);
5075
5076 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5077 (regdom->dfs_region &&
5078 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5079 goto nla_put_failure_rcu;
5080
f130347c
LR		 5081 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5082 if (!nl_reg_rules)
458f4f9e 5083 goto nla_put_failure_rcu;
f130347c 5084
458f4f9e 5085 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5086 struct nlattr *nl_reg_rule;
5087 const struct ieee80211_reg_rule *reg_rule;
5088 const struct ieee80211_freq_range *freq_range;
5089 const struct ieee80211_power_rule *power_rule;
5090
458f4f9e 5091 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5092 freq_range = &reg_rule->freq_range;
5093 power_rule = &reg_rule->power_rule;
5094
5095 nl_reg_rule = nla_nest_start(msg, i);
5096 if (!nl_reg_rule)
458f4f9e 5097 goto nla_put_failure_rcu;
f130347c 5098
9360ffd1
DM		 5099 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5100 reg_rule->flags) ||
5101 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5102 freq_range->start_freq_khz) ||
5103 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5104 freq_range->end_freq_khz) ||
5105 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5106 freq_range->max_bandwidth_khz) ||
5107 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5108 power_rule->max_antenna_gain) ||
5109 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5110 power_rule->max_eirp))
458f4f9e 5111 goto nla_put_failure_rcu;
f130347c
LR		 5112
5113 nla_nest_end(msg, nl_reg_rule);
5114 }
458f4f9e 5115 rcu_read_unlock();
f130347c
LR		 5116
5117 nla_nest_end(msg, nl_reg_rules);
5118
5119 genlmsg_end(msg, hdr);
5fe231e8 5120 return genlmsg_reply(msg, info);
f130347c 5121
458f4f9e
JB		 5122nla_put_failure_rcu:
5123 rcu_read_unlock();
f130347c
LR		 5124nla_put_failure:
5125 genlmsg_cancel(msg, hdr);
efe1cf0c 5126put_failure:
d080e275 5127 nlmsg_free(msg);
5fe231e8 5128 return -EMSGSIZE;
f130347c
LR		 5129}
5130
b2e1b302
LR		 5131static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5132{
5133 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5134 struct nlattr *nl_reg_rule;
5135 char *alpha2 = NULL;
5136 int rem_reg_rules = 0, r = 0;
5137 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5138 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5139 struct ieee80211_regdomain *rd = NULL;
5140
5141 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5142 return -EINVAL;
5143
5144 if (!info->attrs[NL80211_ATTR_REG_RULES])
5145 return -EINVAL;
5146
5147 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5148
8b60b078
LR		 5149 if (info->attrs[NL80211_ATTR_DFS_REGION])
5150 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5151
b2e1b302 5152 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5153 rem_reg_rules) {
b2e1b302
LR		 5154 num_rules++;
5155 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5156 return -EINVAL;
b2e1b302
LR		 5157 }
5158
e438768f
LR		 5159 if (!reg_is_valid_request(alpha2))
5160 return -EINVAL;
5161
b2e1b302 5162 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5163 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5164
5165 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5166 if (!rd)
5167 return -ENOMEM;
b2e1b302
LR		 5168
5169 rd->n_reg_rules = num_rules;
5170 rd->alpha2[0] = alpha2[0];
5171 rd->alpha2[1] = alpha2[1];
5172
8b60b078
LR		 5173 /*
5174 * Disable DFS master mode if the DFS region was
5175 * not supported or known on this kernel.
5176 */
5177 if (reg_supported_dfs_region(dfs_region))
5178 rd->dfs_region = dfs_region;
5179
b2e1b302 5180 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5181 rem_reg_rules) {
b2e1b302 5182 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 5183 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5184 reg_rule_policy);
b2e1b302
LR		 5185 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5186 if (r)
5187 goto bad_reg;
5188
5189 rule_idx++;
5190
d0e18f83
LR		 5191 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5192 r = -EINVAL;
b2e1b302 5193 goto bad_reg;
d0e18f83 5194 }
b2e1b302
LR		 5195 }
5196
b2e1b302 5197 r = set_regdom(rd);
6913b49a 5198 /* set_regdom took ownership */
1a919318 5199 rd = NULL;
b2e1b302 5200
d2372b31 5201 bad_reg:
b2e1b302 5202 kfree(rd);
d0e18f83 5203 return r;
b2e1b302
LR		 5204}
5205
83f5e2cf
JB		 5206static int validate_scan_freqs(struct nlattr *freqs)
5207{
5208 struct nlattr *attr1, *attr2;
5209 int n_channels = 0, tmp1, tmp2;
5210
5211 nla_for_each_nested(attr1, freqs, tmp1) {
5212 n_channels++;
5213 /*
5214 * Some hardware has a limited channel list for
5215 * scanning, and it is pretty much nonsensical
5216 * to scan for a channel twice, so disallow that
5217 * and don't require drivers to check that the
5218 * channel list they get isn't longer than what
5219 * they can scan, as long as they can scan all
5220 * the channels they registered at once.
5221 */
5222 nla_for_each_nested(attr2, freqs, tmp2)
5223 if (attr1 != attr2 &&
5224 nla_get_u32(attr1) == nla_get_u32(attr2))
5225 return 0;
5226 }
5227
5228 return n_channels;
5229}
5230
2a519311
JB		 5231static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5232{
4c476991 5233 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5234 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5235 struct cfg80211_scan_request *request;
2a519311
JB		 5236 struct nlattr *attr;
5237 struct wiphy *wiphy;
83f5e2cf 5238 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5239 size_t ie_len;
2a519311 5240
f4a11bb0
JB		 5241 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5242 return -EINVAL;
5243
79c97e97 5244 wiphy = &rdev->wiphy;
2a519311 5245
4c476991
JB		 5246 if (!rdev->ops->scan)
5247 return -EOPNOTSUPP;
2a519311 5248
f9f47529
JB		 5249 if (rdev->scan_req) {
5250 err = -EBUSY;
5251 goto unlock;
5252 }
2a519311
JB		 5253
5254 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5255 n_channels = validate_scan_freqs(
5256 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5257 if (!n_channels) {
5258 err = -EINVAL;
5259 goto unlock;
5260 }
2a519311 5261 } else {
34850ab2 5262 enum ieee80211_band band;
83f5e2cf
JB		 5263 n_channels = 0;
5264
2a519311
JB		 5265 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5266 if (wiphy->bands[band])
5267 n_channels += wiphy->bands[band]->n_channels;
5268 }
5269
5270 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5271 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5272 n_ssids++;
5273
f9f47529
JB		 5274 if (n_ssids > wiphy->max_scan_ssids) {
5275 err = -EINVAL;
5276 goto unlock;
5277 }
2a519311 5278
70692ad2
JM		 5279 if (info->attrs[NL80211_ATTR_IE])
5280 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5281 else
5282 ie_len = 0;
5283
f9f47529
JB		 5284 if (ie_len > wiphy->max_scan_ie_len) {
5285 err = -EINVAL;
5286 goto unlock;
5287 }
18a83659 5288
2a519311 5289 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5290 + sizeof(*request->ssids) * n_ssids
5291 + sizeof(*request->channels) * n_channels
70692ad2 5292 + ie_len, GFP_KERNEL);
f9f47529
JB		 5293 if (!request) {
5294 err = -ENOMEM;
5295 goto unlock;
5296 }
2a519311 5297
2a519311 5298 if (n_ssids)
5ba63533 5299 request->ssids = (void *)&request->channels[n_channels];
2a519311 5300 request->n_ssids = n_ssids;
70692ad2
JM		 5301 if (ie_len) {
5302 if (request->ssids)
5303 request->ie = (void *)(request->ssids + n_ssids);
5304 else
5305 request->ie = (void *)(request->channels + n_channels);
5306 }
2a519311 5307
584991dc 5308 i = 0;
2a519311
JB		 5309 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5310 /* user specified, bail out if channel not found */
2a519311 5311 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5312 struct ieee80211_channel *chan;
5313
5314 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5315
5316 if (!chan) {
2a519311
JB		 5317 err = -EINVAL;
5318 goto out_free;
5319 }
584991dc
JB		 5320
5321 /* ignore disabled channels */
5322 if (chan->flags & IEEE80211_CHAN_DISABLED)
5323 continue;
5324
5325 request->channels[i] = chan;
2a519311
JB		 5326 i++;
5327 }
5328 } else {
34850ab2
JB		 5329 enum ieee80211_band band;
5330
2a519311 5331 /* all channels */
2a519311
JB		 5332 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5333 int j;
5334 if (!wiphy->bands[band])
5335 continue;
5336 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5337 struct ieee80211_channel *chan;
5338
5339 chan = &wiphy->bands[band]->channels[j];
5340
5341 if (chan->flags & IEEE80211_CHAN_DISABLED)
5342 continue;
5343
5344 request->channels[i] = chan;
2a519311
JB		 5345 i++;
5346 }
5347 }
5348 }
5349
584991dc
JB		 5350 if (!i) {
5351 err = -EINVAL;
5352 goto out_free;
5353 }
5354
5355 request->n_channels = i;
5356
2a519311
JB		 5357 i = 0;
5358 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5359 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5360 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5361 err = -EINVAL;
5362 goto out_free;
5363 }
57a27e1d 5364 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5365 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5366 i++;
5367 }
5368 }
5369
70692ad2
JM		 5370 if (info->attrs[NL80211_ATTR_IE]) {
5371 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5372 memcpy((void *)request->ie,
5373 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5374 request->ie_len);
5375 }
5376
34850ab2 5377 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5378 if (wiphy->bands[i])
5379 request->rates[i] =
5380 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5381
5382 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5383 nla_for_each_nested(attr,
5384 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5385 tmp) {
5386 enum ieee80211_band band = nla_type(attr);
5387
84404623 5388 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5389 err = -EINVAL;
5390 goto out_free;
5391 }
1b09cd82
FF		 5392
5393 if (!wiphy->bands[band])
5394 continue;
5395
34850ab2
JB		 5396 err = ieee80211_get_ratemask(wiphy->bands[band],
5397 nla_data(attr),
5398 nla_len(attr),
5399 &request->rates[band]);
5400 if (err)
5401 goto out_free;
5402 }
5403 }
5404
46856bbf 5405 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5406 request->flags = nla_get_u32(
5407 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5408 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5409 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5410 err = -EOPNOTSUPP;
5411 goto out_free;
5412 }
5413 }
ed473771 5414
e9f935e3
RM		 5415 request->no_cck =
5416 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5417
fd014284 5418 request->wdev = wdev;
79c97e97 5419 request->wiphy = &rdev->wiphy;
15d6030b 5420 request->scan_start = jiffies;
2a519311 5421
79c97e97 5422 rdev->scan_req = request;
e35e4d28 5423 err = rdev_scan(rdev, request);
2a519311 5424
463d0183 5425 if (!err) {
fd014284
JB		 5426 nl80211_send_scan_start(rdev, wdev);
5427 if (wdev->netdev)
5428 dev_hold(wdev->netdev);
4c476991 5429 } else {
2a519311 5430 out_free:
79c97e97 5431 rdev->scan_req = NULL;
2a519311
JB		 5432 kfree(request);
5433 }
3b85875a 5434
f9f47529 5435 unlock:
2a519311
JB		 5436 return err;
5437}
5438
807f8a8c
LC		 5439static int nl80211_start_sched_scan(struct sk_buff *skb,
5440 struct genl_info *info)
5441{
5442 struct cfg80211_sched_scan_request *request;
5443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5444 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5445 struct nlattr *attr;
5446 struct wiphy *wiphy;
a1f1c21c 5447 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5448 u32 interval;
807f8a8c
LC		 5449 enum ieee80211_band band;
5450 size_t ie_len;
a1f1c21c 5451 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5452
5453 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5454 !rdev->ops->sched_scan_start)
5455 return -EOPNOTSUPP;
5456
5457 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5458 return -EINVAL;
5459
bbe6ad6d
LC		 5460 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5461 return -EINVAL;
5462
5463 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5464 if (interval == 0)
5465 return -EINVAL;
5466
807f8a8c
LC		 5467 wiphy = &rdev->wiphy;
5468
5469 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5470 n_channels = validate_scan_freqs(
5471 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5472 if (!n_channels)
5473 return -EINVAL;
5474 } else {
5475 n_channels = 0;
5476
5477 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5478 if (wiphy->bands[band])
5479 n_channels += wiphy->bands[band]->n_channels;
5480 }
5481
5482 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5483 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5484 tmp)
5485 n_ssids++;
5486
93b6aa69 5487 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5488 return -EINVAL;
5489
a1f1c21c
LC		 5490 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5491 nla_for_each_nested(attr,
5492 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5493 tmp)
5494 n_match_sets++;
5495
5496 if (n_match_sets > wiphy->max_match_sets)
5497 return -EINVAL;
5498
807f8a8c
LC		 5499 if (info->attrs[NL80211_ATTR_IE])
5500 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5501 else
5502 ie_len = 0;
5503
5a865bad 5504 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5505 return -EINVAL;
5506
c10841ca
LC		 5507 if (rdev->sched_scan_req) {
5508 err = -EINPROGRESS;
5509 goto out;
5510 }
5511
807f8a8c 5512 request = kzalloc(sizeof(*request)
a2cd43c5 5513 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5514 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5515 + sizeof(*request->channels) * n_channels
807f8a8c 5516 + ie_len, GFP_KERNEL);
c10841ca
LC		 5517 if (!request) {
5518 err = -ENOMEM;
5519 goto out;
5520 }
807f8a8c
LC		 5521
5522 if (n_ssids)
5523 request->ssids = (void *)&request->channels[n_channels];
5524 request->n_ssids = n_ssids;
5525 if (ie_len) {
5526 if (request->ssids)
5527 request->ie = (void *)(request->ssids + n_ssids);
5528 else
5529 request->ie = (void *)(request->channels + n_channels);
5530 }
5531
a1f1c21c
LC		 5532 if (n_match_sets) {
5533 if (request->ie)
5534 request->match_sets = (void *)(request->ie + ie_len);
5535 else if (request->ssids)
5536 request->match_sets =
5537 (void *)(request->ssids + n_ssids);
5538 else
5539 request->match_sets =
5540 (void *)(request->channels + n_channels);
5541 }
5542 request->n_match_sets = n_match_sets;
5543
807f8a8c
LC		 5544 i = 0;
5545 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5546 /* user specified, bail out if channel not found */
5547 nla_for_each_nested(attr,
5548 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5549 tmp) {
5550 struct ieee80211_channel *chan;
5551
5552 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5553
5554 if (!chan) {
5555 err = -EINVAL;
5556 goto out_free;
5557 }
5558
5559 /* ignore disabled channels */
5560 if (chan->flags & IEEE80211_CHAN_DISABLED)
5561 continue;
5562
5563 request->channels[i] = chan;
5564 i++;
5565 }
5566 } else {
5567 /* all channels */
5568 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5569 int j;
5570 if (!wiphy->bands[band])
5571 continue;
5572 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5573 struct ieee80211_channel *chan;
5574
5575 chan = &wiphy->bands[band]->channels[j];
5576
5577 if (chan->flags & IEEE80211_CHAN_DISABLED)
5578 continue;
5579
5580 request->channels[i] = chan;
5581 i++;
5582 }
5583 }
5584 }
5585
5586 if (!i) {
5587 err = -EINVAL;
5588 goto out_free;
5589 }
5590
5591 request->n_channels = i;
5592
5593 i = 0;
5594 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5595 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5596 tmp) {
57a27e1d 5597 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5598 err = -EINVAL;
5599 goto out_free;
5600 }
57a27e1d 5601 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5602 memcpy(request->ssids[i].ssid, nla_data(attr),
5603 nla_len(attr));
807f8a8c
LC		 5604 i++;
5605 }
5606 }
5607
a1f1c21c
LC		 5608 i = 0;
5609 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5610 nla_for_each_nested(attr,
5611 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5612 tmp) {
88e920b4 5613 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5614
5615 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5616 nla_data(attr), nla_len(attr),
5617 nl80211_match_policy);
4a4ab0d7 5618 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5619 if (ssid) {
5620 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5621 err = -EINVAL;
5622 goto out_free;
5623 }
5624 memcpy(request->match_sets[i].ssid.ssid,
5625 nla_data(ssid), nla_len(ssid));
5626 request->match_sets[i].ssid.ssid_len =
5627 nla_len(ssid);
5628 }
88e920b4
TP		 5629 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5630 if (rssi)
5631 request->rssi_thold = nla_get_u32(rssi);
5632 else
5633 request->rssi_thold =
5634 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5635 i++;
5636 }
5637 }
5638
807f8a8c
LC		 5639 if (info->attrs[NL80211_ATTR_IE]) {
5640 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5641 memcpy((void *)request->ie,
5642 nla_data(info->attrs[NL80211_ATTR_IE]),
5643 request->ie_len);
5644 }
5645
46856bbf 5646 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5647 request->flags = nla_get_u32(
5648 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5649 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5650 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5651 err = -EOPNOTSUPP;
5652 goto out_free;
5653 }
5654 }
ed473771 5655
807f8a8c
LC		 5656 request->dev = dev;
5657 request->wiphy = &rdev->wiphy;
bbe6ad6d 5658 request->interval = interval;
15d6030b 5659 request->scan_start = jiffies;
807f8a8c 5660
e35e4d28 5661 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5662 if (!err) {
5663 rdev->sched_scan_req = request;
5664 nl80211_send_sched_scan(rdev, dev,
5665 NL80211_CMD_START_SCHED_SCAN);
5666 goto out;
5667 }
5668
5669out_free:
5670 kfree(request);
5671out:
5672 return err;
5673}
5674
5675static int nl80211_stop_sched_scan(struct sk_buff *skb,
5676 struct genl_info *info)
5677{
5678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5679
5680 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5681 !rdev->ops->sched_scan_stop)
5682 return -EOPNOTSUPP;
5683
5fe231e8 5684 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5685}
5686
04f39047
SW		 5687static int nl80211_start_radar_detection(struct sk_buff *skb,
5688 struct genl_info *info)
5689{
5690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5691 struct net_device *dev = info->user_ptr[1];
5692 struct wireless_dev *wdev = dev->ieee80211_ptr;
5693 struct cfg80211_chan_def chandef;
55f7435c 5694 enum nl80211_dfs_regions dfs_region;
04f39047
SW		 5695 int err;
5696
55f7435c
LR		 5697 dfs_region = reg_get_dfs_region(wdev->wiphy);
5698 if (dfs_region == NL80211_DFS_UNSET)
5699 return -EINVAL;
5700
04f39047
SW		 5701 err = nl80211_parse_chandef(rdev, info, &chandef);
5702 if (err)
5703 return err;
5704
ff311bc1
SW		 5705 if (netif_carrier_ok(dev))
5706 return -EBUSY;
5707
04f39047
SW		 5708 if (wdev->cac_started)
5709 return -EBUSY;
5710
5711 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5712 if (err < 0)
5713 return err;
5714
5715 if (err == 0)
5716 return -EINVAL;
5717
fe7c3a1f 5718 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5719 return -EINVAL;
5720
5721 if (!rdev->ops->start_radar_detection)
5722 return -EOPNOTSUPP;
5723
04f39047
SW		 5724 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5725 chandef.chan, CHAN_MODE_SHARED,
5726 BIT(chandef.width));
5727 if (err)
5fe231e8 5728 return err;
04f39047
SW		 5729
5730 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5731 if (!err) {
5732 wdev->channel = chandef.chan;
5733 wdev->cac_started = true;
5734 wdev->cac_start_time = jiffies;
5735 }
04f39047
SW		 5736 return err;
5737}
5738
16ef1fe2
SW		 5739static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5740{
5741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5742 struct net_device *dev = info->user_ptr[1];
5743 struct wireless_dev *wdev = dev->ieee80211_ptr;
5744 struct cfg80211_csa_settings params;
5745 /* csa_attrs is defined static to avoid waste of stack size - this
5746 * function is called under RTNL lock, so this should not be a problem.
5747 */
5748 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5749 u8 radar_detect_width = 0;
5750 int err;
ee4bc9e7 5751 bool need_new_beacon = false;
16ef1fe2
SW		 5752
5753 if (!rdev->ops->channel_switch ||
5754 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5755 return -EOPNOTSUPP;
5756
ee4bc9e7
SW		 5757 switch (dev->ieee80211_ptr->iftype) {
5758 case NL80211_IFTYPE_AP:
5759 case NL80211_IFTYPE_P2P_GO:
5760 need_new_beacon = true;
5761
5762 /* useless if AP is not running */
5763 if (!wdev->beacon_interval)
5764 return -EINVAL;
5765 break;
5766 case NL80211_IFTYPE_ADHOC:
c6da674a 5767 case NL80211_IFTYPE_MESH_POINT:
ee4bc9e7
SW		 5768 break;
5769 default:
16ef1fe2 5770 return -EOPNOTSUPP;
ee4bc9e7 5771 }
16ef1fe2
SW		 5772
5773 memset(&params, 0, sizeof(params));
5774
5775 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5776 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5777 return -EINVAL;
5778
5779 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5780 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5781 return -EINVAL;
5782
5783 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5784
ee4bc9e7
SW		 5785 if (!need_new_beacon)
5786 goto skip_beacons;
5787
16ef1fe2
SW		 5788 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5789 if (err)
5790 return err;
5791
5792 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5793 info->attrs[NL80211_ATTR_CSA_IES],
5794 nl80211_policy);
5795 if (err)
5796 return err;
5797
5798 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5799 if (err)
5800 return err;
5801
5802 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5803 return -EINVAL;
5804
5805 params.counter_offset_beacon =
5806 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5807 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5808 return -EINVAL;
5809
5810 /* sanity check - counters should be the same */
5811 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5812 params.count)
5813 return -EINVAL;
5814
5815 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5816 params.counter_offset_presp =
5817 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5818 if (params.counter_offset_presp >=
5819 params.beacon_csa.probe_resp_len)
5820 return -EINVAL;
5821
5822 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5823 params.count)
5824 return -EINVAL;
5825 }
5826
ee4bc9e7 5827skip_beacons:
16ef1fe2
SW		 5828 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5829 if (err)
5830 return err;
5831
5832 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
5833 return -EINVAL;
5834
ee4bc9e7 5835 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
5336fa88
SW		 5836 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO ||
5837 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC) {
ee4bc9e7
SW		 5838 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5839 &params.chandef);
5840 if (err < 0) {
5841 return err;
5842 } else if (err) {
5843 radar_detect_width = BIT(params.chandef.width);
5844 params.radar_required = true;
5845 }
16ef1fe2
SW		 5846 }
5847
5848 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5849 params.chandef.chan,
5850 CHAN_MODE_SHARED,
5851 radar_detect_width);
5852 if (err)
5853 return err;
5854
5855 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5856 params.block_tx = true;
5857
c56589ed
SW		 5858 wdev_lock(wdev);
5859 err = rdev_channel_switch(rdev, dev, &params);
5860 wdev_unlock(wdev);
5861
5862 return err;
16ef1fe2
SW		 5863}
5864
9720bb3a
JB		 5865static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5866 u32 seq, int flags,
2a519311 5867 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5868 struct wireless_dev *wdev,
5869 struct cfg80211_internal_bss *intbss)
2a519311 5870{
48ab905d 5871 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5872 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5873 void *hdr;
5874 struct nlattr *bss;
8cef2c9d 5875 bool tsf = false;
48ab905d
JB		 5876
5877 ASSERT_WDEV_LOCK(wdev);
2a519311 5878
15e47304 5879 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5880 NL80211_CMD_NEW_SCAN_RESULTS);
5881 if (!hdr)
5882 return -1;
5883
9720bb3a
JB		 5884 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5885
97990a06
JB		 5886 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5887 goto nla_put_failure;
5888 if (wdev->netdev &&
9360ffd1
DM		 5889 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5890 goto nla_put_failure;
97990a06
JB		 5891 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5892 goto nla_put_failure;
2a519311
JB		 5893
5894 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5895 if (!bss)
5896 goto nla_put_failure;
9360ffd1 5897 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5898 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5899 goto nla_put_failure;
9caf0364
JB		 5900
5901 rcu_read_lock();
5902 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5903 if (ies) {
5904 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5905 goto fail_unlock_rcu;
5906 tsf = true;
5907 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5908 ies->len, ies->data))
5909 goto fail_unlock_rcu;
9caf0364
JB		 5910 }
5911 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5912 if (ies) {
5913 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5914 goto fail_unlock_rcu;
5915 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5916 ies->len, ies->data))
5917 goto fail_unlock_rcu;
9caf0364
JB		 5918 }
5919 rcu_read_unlock();
5920
9360ffd1
DM		 5921 if (res->beacon_interval &&
5922 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5923 goto nla_put_failure;
5924 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5925 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 5926 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 5927 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5928 jiffies_to_msecs(jiffies - intbss->ts)))
5929 goto nla_put_failure;
2a519311 5930
77965c97 5931 switch (rdev->wiphy.signal_type) {
2a519311 5932 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5933 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5934 goto nla_put_failure;
2a519311
JB		 5935 break;
5936 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5937 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5938 goto nla_put_failure;
2a519311
JB		 5939 break;
5940 default:
5941 break;
5942 }
5943
48ab905d 5944 switch (wdev->iftype) {
074ac8df 5945 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5946 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5947 if (intbss == wdev->current_bss &&
5948 nla_put_u32(msg, NL80211_BSS_STATUS,
5949 NL80211_BSS_STATUS_ASSOCIATED))
5950 goto nla_put_failure;
48ab905d
JB		 5951 break;
5952 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5953 if (intbss == wdev->current_bss &&
5954 nla_put_u32(msg, NL80211_BSS_STATUS,
5955 NL80211_BSS_STATUS_IBSS_JOINED))
5956 goto nla_put_failure;
48ab905d
JB		 5957 break;
5958 default:
5959 break;
5960 }
5961
2a519311
JB		 5962 nla_nest_end(msg, bss);
5963
5964 return genlmsg_end(msg, hdr);
5965
8cef2c9d
JB		 5966 fail_unlock_rcu:
5967 rcu_read_unlock();
2a519311
JB		 5968 nla_put_failure:
5969 genlmsg_cancel(msg, hdr);
5970 return -EMSGSIZE;
5971}
5972
97990a06 5973static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5974{
48ab905d 5975 struct cfg80211_registered_device *rdev;
2a519311 5976 struct cfg80211_internal_bss *scan;
48ab905d 5977 struct wireless_dev *wdev;
97990a06 5978 int start = cb->args[2], idx = 0;
2a519311
JB		 5979 int err;
5980
97990a06 5981 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5982 if (err)
5983 return err;
2a519311 5984
48ab905d
JB		 5985 wdev_lock(wdev);
5986 spin_lock_bh(&rdev->bss_lock);
5987 cfg80211_bss_expire(rdev);
5988
9720bb3a
JB		 5989 cb->seq = rdev->bss_generation;
5990
48ab905d 5991 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5992 if (++idx <= start)
5993 continue;
9720bb3a 5994 if (nl80211_send_bss(skb, cb,
2a519311 5995 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5996 rdev, wdev, scan) < 0) {
2a519311 5997 idx--;
67748893 5998 break;
2a519311
JB		 5999 }
6000 }
6001
48ab905d
JB		 6002 spin_unlock_bh(&rdev->bss_lock);
6003 wdev_unlock(wdev);
2a519311 6004
97990a06
JB		 6005 cb->args[2] = idx;
6006 nl80211_finish_wdev_dump(rdev);
2a519311 6007
67748893 6008 return skb->len;
2a519311
JB		 6009}
6010
15e47304 6011static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6012 int flags, struct net_device *dev,
6013 struct survey_info *survey)
6014{
6015 void *hdr;
6016 struct nlattr *infoattr;
6017
15e47304 6018 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6019 NL80211_CMD_NEW_SURVEY_RESULTS);
6020 if (!hdr)
6021 return -ENOMEM;
6022
9360ffd1
DM		 6023 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6024 goto nla_put_failure;
61fa713c
HS		 6025
6026 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6027 if (!infoattr)
6028 goto nla_put_failure;
6029
9360ffd1
DM		 6030 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6031 survey->channel->center_freq))
6032 goto nla_put_failure;
6033
6034 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6035 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6036 goto nla_put_failure;
6037 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6038 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6039 goto nla_put_failure;
6040 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6041 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6042 survey->channel_time))
6043 goto nla_put_failure;
6044 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6045 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6046 survey->channel_time_busy))
6047 goto nla_put_failure;
6048 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6049 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6050 survey->channel_time_ext_busy))
6051 goto nla_put_failure;
6052 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6053 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6054 survey->channel_time_rx))
6055 goto nla_put_failure;
6056 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6057 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6058 survey->channel_time_tx))
6059 goto nla_put_failure;
61fa713c
HS		 6060
6061 nla_nest_end(msg, infoattr);
6062
6063 return genlmsg_end(msg, hdr);
6064
6065 nla_put_failure:
6066 genlmsg_cancel(msg, hdr);
6067 return -EMSGSIZE;
6068}
6069
6070static int nl80211_dump_survey(struct sk_buff *skb,
6071 struct netlink_callback *cb)
6072{
6073 struct survey_info survey;
6074 struct cfg80211_registered_device *dev;
97990a06
JB		 6075 struct wireless_dev *wdev;
6076 int survey_idx = cb->args[2];
61fa713c
HS		 6077 int res;
6078
97990a06 6079 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 6080 if (res)
6081 return res;
61fa713c 6082
97990a06
JB		 6083 if (!wdev->netdev) {
6084 res = -EINVAL;
6085 goto out_err;
6086 }
6087
61fa713c
HS		 6088 if (!dev->ops->dump_survey) {
6089 res = -EOPNOTSUPP;
6090 goto out_err;
6091 }
6092
6093 while (1) {
180cdc79
LR		 6094 struct ieee80211_channel *chan;
6095
97990a06 6096 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6097 if (res == -ENOENT)
6098 break;
6099 if (res)
6100 goto out_err;
6101
180cdc79
LR		 6102 /* Survey without a channel doesn't make sense */
6103 if (!survey.channel) {
6104 res = -EINVAL;
6105 goto out;
6106 }
6107
6108 chan = ieee80211_get_channel(&dev->wiphy,
6109 survey.channel->center_freq);
6110 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6111 survey_idx++;
6112 continue;
6113 }
6114
61fa713c 6115 if (nl80211_send_survey(skb,
15e47304 6116 NETLINK_CB(cb->skb).portid,
61fa713c 6117 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6118 wdev->netdev, &survey) < 0)
61fa713c
HS		 6119 goto out;
6120 survey_idx++;
6121 }
6122
6123 out:
97990a06 6124 cb->args[2] = survey_idx;
61fa713c
HS		 6125 res = skb->len;
6126 out_err:
97990a06 6127 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 6128 return res;
6129}
6130
b23aa676
SO		 6131static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6132{
6133 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6134 NL80211_WPA_VERSION_2));
6135}
6136
636a5d36
JM		 6137static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6138{
4c476991
JB		 6139 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6140 struct net_device *dev = info->user_ptr[1];
19957bb3 6141 struct ieee80211_channel *chan;
e39e5b5e
JM		 6142 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6143 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6144 enum nl80211_auth_type auth_type;
fffd0934 6145 struct key_parse key;
d5cdfacb 6146 bool local_state_change;
636a5d36 6147
f4a11bb0
JB		 6148 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6149 return -EINVAL;
6150
6151 if (!info->attrs[NL80211_ATTR_MAC])
6152 return -EINVAL;
6153
1778092e
JM		 6154 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6155 return -EINVAL;
6156
19957bb3
JB		 6157 if (!info->attrs[NL80211_ATTR_SSID])
6158 return -EINVAL;
6159
6160 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6161 return -EINVAL;
6162
fffd0934
JB		 6163 err = nl80211_parse_key(info, &key);
6164 if (err)
6165 return err;
6166
6167 if (key.idx >= 0) {
e31b8213
JB		 6168 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6169 return -EINVAL;
fffd0934
JB		 6170 if (!key.p.key || !key.p.key_len)
6171 return -EINVAL;
6172 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6173 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6174 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6175 key.p.key_len != WLAN_KEY_LEN_WEP104))
6176 return -EINVAL;
6177 if (key.idx > 4)
6178 return -EINVAL;
6179 } else {
6180 key.p.key_len = 0;
6181 key.p.key = NULL;
6182 }
6183
afea0b7a
JB		 6184 if (key.idx >= 0) {
6185 int i;
6186 bool ok = false;
6187 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6188 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6189 ok = true;
6190 break;
6191 }
6192 }
4c476991
JB		 6193 if (!ok)
6194 return -EINVAL;
afea0b7a
JB		 6195 }
6196
4c476991
JB		 6197 if (!rdev->ops->auth)
6198 return -EOPNOTSUPP;
636a5d36 6199
074ac8df 6200 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6201 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6202 return -EOPNOTSUPP;
eec60b03 6203
19957bb3 6204 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 6205 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 6206 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6207 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6208 return -EINVAL;
636a5d36 6209
19957bb3
JB		 6210 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6211 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6212
6213 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6214 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6215 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6216 }
6217
19957bb3 6218 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6219 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6220 return -EINVAL;
636a5d36 6221
e39e5b5e
JM		 6222 if (auth_type == NL80211_AUTHTYPE_SAE &&
6223 !info->attrs[NL80211_ATTR_SAE_DATA])
6224 return -EINVAL;
6225
6226 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6227 if (auth_type != NL80211_AUTHTYPE_SAE)
6228 return -EINVAL;
6229 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6230 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6231 /* need to include at least Auth Transaction and Status Code */
6232 if (sae_data_len < 4)
6233 return -EINVAL;
6234 }
6235
d5cdfacb
JM		 6236 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6237
95de817b
JB		 6238 /*
6239 * Since we no longer track auth state, ignore
6240 * requests to only change local state.
6241 */
6242 if (local_state_change)
6243 return 0;
6244
91bf9b26
JB		 6245 wdev_lock(dev->ieee80211_ptr);
6246 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6247 ssid, ssid_len, ie, ie_len,
6248 key.p.key, key.p.key_len, key.idx,
6249 sae_data, sae_data_len);
6250 wdev_unlock(dev->ieee80211_ptr);
6251 return err;
636a5d36
JM		 6252}
6253
c0692b8f
JB		 6254static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6255 struct genl_info *info,
3dc27d25
JB		 6256 struct cfg80211_crypto_settings *settings,
6257 int cipher_limit)
b23aa676 6258{
c0b2bbd8
JB		 6259 memset(settings, 0, sizeof(*settings));
6260
b23aa676
SO		 6261 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6262
c0692b8f
JB		 6263 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6264 u16 proto;
6265 proto = nla_get_u16(
6266 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6267 settings->control_port_ethertype = cpu_to_be16(proto);
6268 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6269 proto != ETH_P_PAE)
6270 return -EINVAL;
6271 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6272 settings->control_port_no_encrypt = true;
6273 } else
6274 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6275
b23aa676
SO		 6276 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6277 void *data;
6278 int len, i;
6279
6280 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6281 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6282 settings->n_ciphers_pairwise = len / sizeof(u32);
6283
6284 if (len % sizeof(u32))
6285 return -EINVAL;
6286
3dc27d25 6287 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6288 return -EINVAL;
6289
6290 memcpy(settings->ciphers_pairwise, data, len);
6291
6292 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6293 if (!cfg80211_supported_cipher_suite(
6294 &rdev->wiphy,
b23aa676
SO		 6295 settings->ciphers_pairwise[i]))
6296 return -EINVAL;
6297 }
6298
6299 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6300 settings->cipher_group =
6301 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6302 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6303 settings->cipher_group))
b23aa676
SO		 6304 return -EINVAL;
6305 }
6306
6307 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6308 settings->wpa_versions =
6309 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6310 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6311 return -EINVAL;
6312 }
6313
6314 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6315 void *data;
6d30240e 6316 int len;
b23aa676
SO		 6317
6318 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6319 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6320 settings->n_akm_suites = len / sizeof(u32);
6321
6322 if (len % sizeof(u32))
6323 return -EINVAL;
6324
1b9ca027
JM		 6325 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6326 return -EINVAL;
6327
b23aa676 6328 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6329 }
6330
6331 return 0;
6332}
6333
636a5d36
JM		 6334static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6335{
4c476991
JB		 6336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6337 struct net_device *dev = info->user_ptr[1];
f444de05 6338 struct ieee80211_channel *chan;
f62fab73
JB		 6339 struct cfg80211_assoc_request req = {};
6340 const u8 *bssid, *ssid;
6341 int err, ssid_len = 0;
636a5d36 6342
f4a11bb0
JB		 6343 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6344 return -EINVAL;
6345
6346 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6347 !info->attrs[NL80211_ATTR_SSID] ||
6348 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6349 return -EINVAL;
6350
4c476991
JB		 6351 if (!rdev->ops->assoc)
6352 return -EOPNOTSUPP;
636a5d36 6353
074ac8df 6354 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6355 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6356 return -EOPNOTSUPP;
eec60b03 6357
19957bb3 6358 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6359
19957bb3
JB		 6360 chan = ieee80211_get_channel(&rdev->wiphy,
6361 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6362 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6363 return -EINVAL;
636a5d36 6364
19957bb3
JB		 6365 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6366 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6367
6368 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6369 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6370 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6371 }
6372
dc6382ce 6373 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6374 enum nl80211_mfp mfp =
dc6382ce 6375 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6376 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6377 req.use_mfp = true;
4c476991
JB		 6378 else if (mfp != NL80211_MFP_NO)
6379 return -EINVAL;
dc6382ce
JM		 6380 }
6381
3e5d7649 6382 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6383 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6384
7e7c8926 6385 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6386 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6387
6388 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6389 memcpy(&req.ht_capa_mask,
6390 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6391 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6392
6393 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6394 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6395 return -EINVAL;
f62fab73
JB		 6396 memcpy(&req.ht_capa,
6397 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6398 sizeof(req.ht_capa));
7e7c8926
BG		 6399 }
6400
ee2aca34 6401 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6402 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6403
6404 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6405 memcpy(&req.vht_capa_mask,
6406 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6407 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6408
6409 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6410 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6411 return -EINVAL;
f62fab73
JB		 6412 memcpy(&req.vht_capa,
6413 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6414 sizeof(req.vht_capa));
ee2aca34
JB		 6415 }
6416
f62fab73 6417 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6418 if (!err) {
6419 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6420 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6421 ssid, ssid_len, &req);
91bf9b26
JB		 6422 wdev_unlock(dev->ieee80211_ptr);
6423 }
636a5d36 6424
636a5d36
JM		 6425 return err;
6426}
6427
6428static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6429{
4c476991
JB		 6430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6431 struct net_device *dev = info->user_ptr[1];
19957bb3 6432 const u8 *ie = NULL, *bssid;
91bf9b26 6433 int ie_len = 0, err;
19957bb3 6434 u16 reason_code;
d5cdfacb 6435 bool local_state_change;
636a5d36 6436
f4a11bb0
JB		 6437 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6438 return -EINVAL;
6439
6440 if (!info->attrs[NL80211_ATTR_MAC])
6441 return -EINVAL;
6442
6443 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6444 return -EINVAL;
6445
4c476991
JB		 6446 if (!rdev->ops->deauth)
6447 return -EOPNOTSUPP;
636a5d36 6448
074ac8df 6449 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6450 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6451 return -EOPNOTSUPP;
eec60b03 6452
19957bb3 6453 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6454
19957bb3
JB		 6455 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6456 if (reason_code == 0) {
f4a11bb0 6457 /* Reason Code 0 is reserved */
4c476991 6458 return -EINVAL;
255e737e 6459 }
636a5d36
JM		 6460
6461 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6462 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6463 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6464 }
6465
d5cdfacb
JM		 6466 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6467
91bf9b26
JB		 6468 wdev_lock(dev->ieee80211_ptr);
6469 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6470 local_state_change);
6471 wdev_unlock(dev->ieee80211_ptr);
6472 return err;
636a5d36
JM		 6473}
6474
6475static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6476{
4c476991
JB		 6477 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6478 struct net_device *dev = info->user_ptr[1];
19957bb3 6479 const u8 *ie = NULL, *bssid;
91bf9b26 6480 int ie_len = 0, err;
19957bb3 6481 u16 reason_code;
d5cdfacb 6482 bool local_state_change;
636a5d36 6483
f4a11bb0
JB		 6484 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6485 return -EINVAL;
6486
6487 if (!info->attrs[NL80211_ATTR_MAC])
6488 return -EINVAL;
6489
6490 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6491 return -EINVAL;
6492
4c476991
JB		 6493 if (!rdev->ops->disassoc)
6494 return -EOPNOTSUPP;
636a5d36 6495
074ac8df 6496 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6497 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6498 return -EOPNOTSUPP;
eec60b03 6499
19957bb3 6500 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6501
19957bb3
JB		 6502 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6503 if (reason_code == 0) {
f4a11bb0 6504 /* Reason Code 0 is reserved */
4c476991 6505 return -EINVAL;
255e737e 6506 }
636a5d36
JM		 6507
6508 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6509 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6510 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6511 }
6512
d5cdfacb
JM		 6513 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6514
91bf9b26
JB		 6515 wdev_lock(dev->ieee80211_ptr);
6516 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6517 local_state_change);
6518 wdev_unlock(dev->ieee80211_ptr);
6519 return err;
636a5d36
JM		 6520}
6521
dd5b4cc7
FF		 6522static bool
6523nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6524 int mcast_rate[IEEE80211_NUM_BANDS],
6525 int rateval)
6526{
6527 struct wiphy *wiphy = &rdev->wiphy;
6528 bool found = false;
6529 int band, i;
6530
6531 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6532 struct ieee80211_supported_band *sband;
6533
6534 sband = wiphy->bands[band];
6535 if (!sband)
6536 continue;
6537
6538 for (i = 0; i < sband->n_bitrates; i++) {
6539 if (sband->bitrates[i].bitrate == rateval) {
6540 mcast_rate[band] = i + 1;
6541 found = true;
6542 break;
6543 }
6544 }
6545 }
6546
6547 return found;
6548}
6549
04a773ad
JB		 6550static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6551{
4c476991
JB		 6552 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6553 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6554 struct cfg80211_ibss_params ibss;
6555 struct wiphy *wiphy;
fffd0934 6556 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6557 int err;
6558
8e30bc55
JB		 6559 memset(&ibss, 0, sizeof(ibss));
6560
04a773ad
JB		 6561 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6562 return -EINVAL;
6563
683b6d3b 6564 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6565 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6566 return -EINVAL;
6567
8e30bc55
JB		 6568 ibss.beacon_interval = 100;
6569
6570 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6571 ibss.beacon_interval =
6572 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6573 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6574 return -EINVAL;
6575 }
6576
4c476991
JB		 6577 if (!rdev->ops->join_ibss)
6578 return -EOPNOTSUPP;
04a773ad 6579
4c476991
JB		 6580 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6581 return -EOPNOTSUPP;
04a773ad 6582
79c97e97 6583 wiphy = &rdev->wiphy;
04a773ad 6584
39193498 6585 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6586 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6587
6588 if (!is_valid_ether_addr(ibss.bssid))
6589 return -EINVAL;
6590 }
04a773ad
JB		 6591 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6592 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6593
6594 if (info->attrs[NL80211_ATTR_IE]) {
6595 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6596 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6597 }
6598
683b6d3b
JB		 6599 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6600 if (err)
6601 return err;
04a773ad 6602
683b6d3b 6603 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6604 return -EINVAL;
6605
2f301ab2 6606 switch (ibss.chandef.width) {
bf372645
SW		 6607 case NL80211_CHAN_WIDTH_5:
6608 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6609 case NL80211_CHAN_WIDTH_20_NOHT:
6610 break;
6611 case NL80211_CHAN_WIDTH_20:
6612 case NL80211_CHAN_WIDTH_40:
6613 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6614 break;
6615 default:
c04d6150 6616 return -EINVAL;
2f301ab2 6617 }
db9c64cf 6618
04a773ad 6619 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6620 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6621
fbd2c8dc
TP		 6622 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6623 u8 *rates =
6624 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6625 int n_rates =
6626 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6627 struct ieee80211_supported_band *sband =
683b6d3b 6628 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6629
34850ab2
JB		 6630 err = ieee80211_get_ratemask(sband, rates, n_rates,
6631 &ibss.basic_rates);
6632 if (err)
6633 return err;
fbd2c8dc 6634 }
dd5b4cc7 6635
803768f5
SW		 6636 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6637 memcpy(&ibss.ht_capa_mask,
6638 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6639 sizeof(ibss.ht_capa_mask));
6640
6641 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6642 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6643 return -EINVAL;
6644 memcpy(&ibss.ht_capa,
6645 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6646 sizeof(ibss.ht_capa));
6647 }
6648
dd5b4cc7
FF		 6649 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6650 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6651 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6652 return -EINVAL;
fbd2c8dc 6653
4c476991 6654 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6655 bool no_ht = false;
6656
4c476991 6657 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6658 info->attrs[NL80211_ATTR_KEYS],
6659 &no_ht);
4c476991
JB		 6660 if (IS_ERR(connkeys))
6661 return PTR_ERR(connkeys);
de7044ee 6662
3d9d1d66
JB		 6663 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6664 no_ht) {
de7044ee
SM		 6665 kfree(connkeys);
6666 return -EINVAL;
6667 }
4c476991 6668 }
04a773ad 6669
267335d6
AQ		 6670 ibss.control_port =
6671 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6672
5336fa88
SW		 6673 ibss.userspace_handles_dfs =
6674 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6675
4c476991 6676 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6677 if (err)
6678 kfree(connkeys);
04a773ad
JB		 6679 return err;
6680}
6681
6682static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6683{
4c476991
JB		 6684 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6685 struct net_device *dev = info->user_ptr[1];
04a773ad 6686
4c476991
JB		 6687 if (!rdev->ops->leave_ibss)
6688 return -EOPNOTSUPP;
04a773ad 6689
4c476991
JB		 6690 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6691 return -EOPNOTSUPP;
04a773ad 6692
4c476991 6693 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6694}
6695
f4e583c8
AQ		 6696static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6697{
6698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6699 struct net_device *dev = info->user_ptr[1];
6700 int mcast_rate[IEEE80211_NUM_BANDS];
6701 u32 nla_rate;
6702 int err;
6703
6704 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6705 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6706 return -EOPNOTSUPP;
6707
6708 if (!rdev->ops->set_mcast_rate)
6709 return -EOPNOTSUPP;
6710
6711 memset(mcast_rate, 0, sizeof(mcast_rate));
6712
6713 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6714 return -EINVAL;
6715
6716 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6717 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6718 return -EINVAL;
6719
6720 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6721
6722 return err;
6723}
6724
ad7e718c
JB		 6725static struct sk_buff *
6726__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6727 int approxlen, u32 portid, u32 seq,
6728 enum nl80211_commands cmd,
6729 enum nl80211_attrs attr, gfp_t gfp)
6730{
6731 struct sk_buff *skb;
6732 void *hdr;
6733 struct nlattr *data;
6734
6735 skb = nlmsg_new(approxlen + 100, gfp);
6736 if (!skb)
6737 return NULL;
6738
6739 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6740 if (!hdr) {
6741 kfree_skb(skb);
6742 return NULL;
6743 }
6744
6745 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6746 goto nla_put_failure;
6747 data = nla_nest_start(skb, attr);
6748
6749 ((void **)skb->cb)[0] = rdev;
6750 ((void **)skb->cb)[1] = hdr;
6751 ((void **)skb->cb)[2] = data;
6752
6753 return skb;
6754
6755 nla_put_failure:
6756 kfree_skb(skb);
6757 return NULL;
6758}
f4e583c8 6759
aff89a9b 6760#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6761static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6762{
4c476991 6763 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6764 struct wireless_dev *wdev =
6765 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6766 int err;
6767
fc73f11f
DS		 6768 if (!rdev->ops->testmode_cmd)
6769 return -EOPNOTSUPP;
6770
6771 if (IS_ERR(wdev)) {
6772 err = PTR_ERR(wdev);
6773 if (err != -EINVAL)
6774 return err;
6775 wdev = NULL;
6776 } else if (wdev->wiphy != &rdev->wiphy) {
6777 return -EINVAL;
6778 }
6779
aff89a9b
JB		 6780 if (!info->attrs[NL80211_ATTR_TESTDATA])
6781 return -EINVAL;
6782
ad7e718c 6783 rdev->cur_cmd_info = info;
fc73f11f 6784 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 6785 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6786 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 6787 rdev->cur_cmd_info = NULL;
aff89a9b 6788
aff89a9b
JB		 6789 return err;
6790}
6791
71063f0e
WYG		 6792static int nl80211_testmode_dump(struct sk_buff *skb,
6793 struct netlink_callback *cb)
6794{
00918d33 6795 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6796 int err;
6797 long phy_idx;
6798 void *data = NULL;
6799 int data_len = 0;
6800
5fe231e8
JB		 6801 rtnl_lock();
6802
71063f0e
WYG		 6803 if (cb->args[0]) {
6804 /*
6805 * 0 is a valid index, but not valid for args[0],
6806 * so we need to offset by 1.
6807 */
6808 phy_idx = cb->args[0] - 1;
6809 } else {
6810 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6811 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6812 nl80211_policy);
6813 if (err)
5fe231e8 6814 goto out_err;
00918d33 6815
2bd7e35d
JB		 6816 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6817 nl80211_fam.attrbuf);
6818 if (IS_ERR(rdev)) {
5fe231e8
JB		 6819 err = PTR_ERR(rdev);
6820 goto out_err;
00918d33 6821 }
2bd7e35d
JB		 6822 phy_idx = rdev->wiphy_idx;
6823 rdev = NULL;
2bd7e35d 6824
71063f0e
WYG		 6825 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6826 cb->args[1] =
6827 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6828 }
6829
6830 if (cb->args[1]) {
6831 data = nla_data((void *)cb->args[1]);
6832 data_len = nla_len((void *)cb->args[1]);
6833 }
6834
00918d33
JB		 6835 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6836 if (!rdev) {
5fe231e8
JB		 6837 err = -ENOENT;
6838 goto out_err;
71063f0e 6839 }
71063f0e 6840
00918d33 6841 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6842 err = -EOPNOTSUPP;
6843 goto out_err;
6844 }
6845
6846 while (1) {
15e47304 6847 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6848 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6849 NL80211_CMD_TESTMODE);
6850 struct nlattr *tmdata;
6851
cb35fba3
DC		 6852 if (!hdr)
6853 break;
6854
9360ffd1 6855 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6856 genlmsg_cancel(skb, hdr);
6857 break;
6858 }
6859
6860 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6861 if (!tmdata) {
6862 genlmsg_cancel(skb, hdr);
6863 break;
6864 }
e35e4d28 6865 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6866 nla_nest_end(skb, tmdata);
6867
6868 if (err == -ENOBUFS || err == -ENOENT) {
6869 genlmsg_cancel(skb, hdr);
6870 break;
6871 } else if (err) {
6872 genlmsg_cancel(skb, hdr);
6873 goto out_err;
6874 }
6875
6876 genlmsg_end(skb, hdr);
6877 }
6878
6879 err = skb->len;
6880 /* see above */
6881 cb->args[0] = phy_idx + 1;
6882 out_err:
5fe231e8 6883 rtnl_unlock();
71063f0e
WYG		 6884 return err;
6885}
6886
aff89a9b
JB		 6887struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6888 int approxlen, gfp_t gfp)
6889{
6890 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6891
ad7e718c
JB		 6892 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6893 NL80211_CMD_TESTMODE,
6894 NL80211_ATTR_TESTDATA, gfp);
aff89a9b
JB		 6895}
6896EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6897
6898void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6899{
a0ec570f 6900 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
aff89a9b
JB		 6901 void *hdr = ((void **)skb->cb)[1];
6902 struct nlattr *data = ((void **)skb->cb)[2];
6903
6904 nla_nest_end(skb, data);
6905 genlmsg_end(skb, hdr);
68eb5503 6906 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
2a94fe48 6907 NL80211_MCGRP_TESTMODE, gfp);
aff89a9b
JB		 6908}
6909EXPORT_SYMBOL(cfg80211_testmode_event);
6910#endif
6911
b23aa676
SO		 6912static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6913{
4c476991
JB		 6914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6915 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6916 struct cfg80211_connect_params connect;
6917 struct wiphy *wiphy;
fffd0934 6918 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6919 int err;
6920
6921 memset(&connect, 0, sizeof(connect));
6922
6923 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6924 return -EINVAL;
6925
6926 if (!info->attrs[NL80211_ATTR_SSID] ||
6927 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6928 return -EINVAL;
6929
6930 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6931 connect.auth_type =
6932 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6933 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6934 NL80211_CMD_CONNECT))
b23aa676
SO		 6935 return -EINVAL;
6936 } else
6937 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6938
6939 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6940
c0692b8f 6941 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6942 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6943 if (err)
6944 return err;
b23aa676 6945
074ac8df 6946 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6947 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6948 return -EOPNOTSUPP;
b23aa676 6949
79c97e97 6950 wiphy = &rdev->wiphy;
b23aa676 6951
4486ea98
BS		 6952 connect.bg_scan_period = -1;
6953 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6954 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6955 connect.bg_scan_period =
6956 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6957 }
6958
b23aa676
SO		 6959 if (info->attrs[NL80211_ATTR_MAC])
6960 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6961 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6962 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6963
6964 if (info->attrs[NL80211_ATTR_IE]) {
6965 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6966 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6967 }
6968
cee00a95
JM		 6969 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6970 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6971 if (connect.mfp != NL80211_MFP_REQUIRED &&
6972 connect.mfp != NL80211_MFP_NO)
6973 return -EINVAL;
6974 } else {
6975 connect.mfp = NL80211_MFP_NO;
6976 }
6977
b23aa676
SO		 6978 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6979 connect.channel =
6980 ieee80211_get_channel(wiphy,
6981 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6982 if (!connect.channel ||
4c476991
JB		 6983 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6984 return -EINVAL;
b23aa676
SO		 6985 }
6986
fffd0934
JB		 6987 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6988 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6989 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6990 if (IS_ERR(connkeys))
6991 return PTR_ERR(connkeys);
fffd0934
JB		 6992 }
6993
7e7c8926
BG		 6994 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6995 connect.flags |= ASSOC_REQ_DISABLE_HT;
6996
6997 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6998 memcpy(&connect.ht_capa_mask,
6999 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7000 sizeof(connect.ht_capa_mask));
7001
7002 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7003 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7004 kfree(connkeys);
7e7c8926 7005 return -EINVAL;
b4e4f47e 7006 }
7e7c8926
BG		 7007 memcpy(&connect.ht_capa,
7008 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7009 sizeof(connect.ht_capa));
7010 }
7011
ee2aca34
JB		 7012 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7013 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7014
7015 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7016 memcpy(&connect.vht_capa_mask,
7017 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7018 sizeof(connect.vht_capa_mask));
7019
7020 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7021 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7022 kfree(connkeys);
7023 return -EINVAL;
7024 }
7025 memcpy(&connect.vht_capa,
7026 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7027 sizeof(connect.vht_capa));
7028 }
7029
83739b03
JB		 7030 wdev_lock(dev->ieee80211_ptr);
7031 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7032 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7033 if (err)
7034 kfree(connkeys);
b23aa676
SO		 7035 return err;
7036}
7037
7038static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7039{
4c476991
JB		 7040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7041 struct net_device *dev = info->user_ptr[1];
b23aa676 7042 u16 reason;
83739b03 7043 int ret;
b23aa676
SO		 7044
7045 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7046 reason = WLAN_REASON_DEAUTH_LEAVING;
7047 else
7048 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7049
7050 if (reason == 0)
7051 return -EINVAL;
7052
074ac8df 7053 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7054 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7055 return -EOPNOTSUPP;
b23aa676 7056
83739b03
JB		 7057 wdev_lock(dev->ieee80211_ptr);
7058 ret = cfg80211_disconnect(rdev, dev, reason, true);
7059 wdev_unlock(dev->ieee80211_ptr);
7060 return ret;
b23aa676
SO		 7061}
7062
463d0183
JB		 7063static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7064{
4c476991 7065 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7066 struct net *net;
7067 int err;
7068 u32 pid;
7069
7070 if (!info->attrs[NL80211_ATTR_PID])
7071 return -EINVAL;
7072
7073 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7074
463d0183 7075 net = get_net_ns_by_pid(pid);
4c476991
JB		 7076 if (IS_ERR(net))
7077 return PTR_ERR(net);
463d0183
JB		 7078
7079 err = 0;
7080
7081 /* check if anything to do */
4c476991
JB		 7082 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7083 err = cfg80211_switch_netns(rdev, net);
463d0183 7084
463d0183 7085 put_net(net);
463d0183
JB		 7086 return err;
7087}
7088
67fbb16b
SO		 7089static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7090{
4c476991 7091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7092 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7093 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7094 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7095 struct cfg80211_pmksa pmksa;
7096
7097 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7098
7099 if (!info->attrs[NL80211_ATTR_MAC])
7100 return -EINVAL;
7101
7102 if (!info->attrs[NL80211_ATTR_PMKID])
7103 return -EINVAL;
7104
67fbb16b
SO		 7105 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7106 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7107
074ac8df 7108 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7109 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7110 return -EOPNOTSUPP;
67fbb16b
SO		 7111
7112 switch (info->genlhdr->cmd) {
7113 case NL80211_CMD_SET_PMKSA:
7114 rdev_ops = rdev->ops->set_pmksa;
7115 break;
7116 case NL80211_CMD_DEL_PMKSA:
7117 rdev_ops = rdev->ops->del_pmksa;
7118 break;
7119 default:
7120 WARN_ON(1);
7121 break;
7122 }
7123
4c476991
JB		 7124 if (!rdev_ops)
7125 return -EOPNOTSUPP;
67fbb16b 7126
4c476991 7127 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7128}
7129
7130static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7131{
4c476991
JB		 7132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7133 struct net_device *dev = info->user_ptr[1];
67fbb16b 7134
074ac8df 7135 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7136 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7137 return -EOPNOTSUPP;
67fbb16b 7138
4c476991
JB		 7139 if (!rdev->ops->flush_pmksa)
7140 return -EOPNOTSUPP;
67fbb16b 7141
e35e4d28 7142 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7143}
7144
109086ce
AN		 7145static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7146{
7147 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7148 struct net_device *dev = info->user_ptr[1];
7149 u8 action_code, dialog_token;
7150 u16 status_code;
7151 u8 *peer;
7152
7153 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7154 !rdev->ops->tdls_mgmt)
7155 return -EOPNOTSUPP;
7156
7157 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7158 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7159 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7160 !info->attrs[NL80211_ATTR_IE] ||
7161 !info->attrs[NL80211_ATTR_MAC])
7162 return -EINVAL;
7163
7164 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7165 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7166 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7167 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7168
e35e4d28
HG		 7169 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7170 dialog_token, status_code,
7171 nla_data(info->attrs[NL80211_ATTR_IE]),
7172 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7173}
7174
7175static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7176{
7177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7178 struct net_device *dev = info->user_ptr[1];
7179 enum nl80211_tdls_operation operation;
7180 u8 *peer;
7181
7182 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7183 !rdev->ops->tdls_oper)
7184 return -EOPNOTSUPP;
7185
7186 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7187 !info->attrs[NL80211_ATTR_MAC])
7188 return -EINVAL;
7189
7190 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7191 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7192
e35e4d28 7193 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7194}
7195
9588bbd5
JM		 7196static int nl80211_remain_on_channel(struct sk_buff *skb,
7197 struct genl_info *info)
7198{
4c476991 7199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7200 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7201 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7202 struct sk_buff *msg;
7203 void *hdr;
7204 u64 cookie;
683b6d3b 7205 u32 duration;
9588bbd5
JM		 7206 int err;
7207
7208 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7209 !info->attrs[NL80211_ATTR_DURATION])
7210 return -EINVAL;
7211
7212 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7213
ebf348fc
JB		 7214 if (!rdev->ops->remain_on_channel ||
7215 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7216 return -EOPNOTSUPP;
7217
9588bbd5 7218 /*
ebf348fc
JB		 7219 * We should be on that channel for at least a minimum amount of
7220 * time (10ms) but no longer than the driver supports.
9588bbd5 7221 */
ebf348fc 7222 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7223 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7224 return -EINVAL;
7225
683b6d3b
JB		 7226 err = nl80211_parse_chandef(rdev, info, &chandef);
7227 if (err)
7228 return err;
9588bbd5
JM		 7229
7230 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7231 if (!msg)
7232 return -ENOMEM;
9588bbd5 7233
15e47304 7234 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7235 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7236 if (!hdr) {
7237 err = -ENOBUFS;
9588bbd5
JM		 7238 goto free_msg;
7239 }
7240
683b6d3b
JB		 7241 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7242 duration, &cookie);
9588bbd5
JM		 7243
7244 if (err)
7245 goto free_msg;
7246
9360ffd1
DM		 7247 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7248 goto nla_put_failure;
9588bbd5
JM		 7249
7250 genlmsg_end(msg, hdr);
4c476991
JB		 7251
7252 return genlmsg_reply(msg, info);
9588bbd5
JM		 7253
7254 nla_put_failure:
7255 err = -ENOBUFS;
7256 free_msg:
7257 nlmsg_free(msg);
9588bbd5
JM		 7258 return err;
7259}
7260
7261static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7262 struct genl_info *info)
7263{
4c476991 7264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7265 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7266 u64 cookie;
9588bbd5
JM		 7267
7268 if (!info->attrs[NL80211_ATTR_COOKIE])
7269 return -EINVAL;
7270
4c476991
JB		 7271 if (!rdev->ops->cancel_remain_on_channel)
7272 return -EOPNOTSUPP;
9588bbd5 7273
9588bbd5
JM		 7274 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7275
e35e4d28 7276 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7277}
7278
13ae75b1
JM		 7279static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7280 u8 *rates, u8 rates_len)
7281{
7282 u8 i;
7283 u32 mask = 0;
7284
7285 for (i = 0; i < rates_len; i++) {
7286 int rate = (rates[i] & 0x7f) * 5;
7287 int ridx;
7288 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7289 struct ieee80211_rate *srate =
7290 &sband->bitrates[ridx];
7291 if (rate == srate->bitrate) {
7292 mask |= 1 << ridx;
7293 break;
7294 }
7295 }
7296 if (ridx == sband->n_bitrates)
7297 return 0; /* rate not found */
7298 }
7299
7300 return mask;
7301}
7302
24db78c0
SW		 7303static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7304 u8 *rates, u8 rates_len,
7305 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7306{
7307 u8 i;
7308
7309 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7310
7311 for (i = 0; i < rates_len; i++) {
7312 int ridx, rbit;
7313
7314 ridx = rates[i] / 8;
7315 rbit = BIT(rates[i] % 8);
7316
7317 /* check validity */
910570b5 7318 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7319 return false;
7320
7321 /* check availability */
7322 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7323 mcs[ridx] |= rbit;
7324 else
7325 return false;
7326 }
7327
7328 return true;
7329}
7330
204e35a9
JD		 7331static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7332{
7333 u16 mcs_mask = 0;
7334
7335 switch (vht_mcs_map) {
7336 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7337 break;
7338 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7339 mcs_mask = 0x00FF;
7340 break;
7341 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7342 mcs_mask = 0x01FF;
7343 break;
7344 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7345 mcs_mask = 0x03FF;
7346 break;
7347 default:
7348 break;
7349 }
7350
7351 return mcs_mask;
7352}
7353
7354static void vht_build_mcs_mask(u16 vht_mcs_map,
7355 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7356{
7357 u8 nss;
7358
7359 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7360 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7361 vht_mcs_map >>= 2;
7362 }
7363}
7364
7365static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7366 struct nl80211_txrate_vht *txrate,
7367 u16 mcs[NL80211_VHT_NSS_MAX])
7368{
7369 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7370 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7371 u8 i;
7372
7373 if (!sband->vht_cap.vht_supported)
7374 return false;
7375
7376 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7377
7378 /* Build vht_mcs_mask from VHT capabilities */
7379 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7380
7381 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7382 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7383 mcs[i] = txrate->mcs[i];
7384 else
7385 return false;
7386 }
7387
7388 return true;
7389}
7390
b54452b0 7391static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7392 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7393 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7394 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7395 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7396 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
13ae75b1
JM		 7397};
7398
7399static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7400 struct genl_info *info)
7401{
7402 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7404 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7405 int rem, i;
7406 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7407 struct nlattr *tx_rates;
7408 struct ieee80211_supported_band *sband;
204e35a9 7409 u16 vht_tx_mcs_map;
13ae75b1 7410
4c476991
JB		 7411 if (!rdev->ops->set_bitrate_mask)
7412 return -EOPNOTSUPP;
13ae75b1
JM		 7413
7414 memset(&mask, 0, sizeof(mask));
7415 /* Default to all rates enabled */
7416 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7417 sband = rdev->wiphy.bands[i];
7869303b
JD		 7418
7419 if (!sband)
7420 continue;
7421
7422 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7423 memcpy(mask.control[i].ht_mcs,
7869303b 7424 sband->ht_cap.mcs.rx_mask,
d1e33e65 7425 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7426
7427 if (!sband->vht_cap.vht_supported)
7428 continue;
7429
7430 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7431 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7432 }
7433
b9243ab0
JD		 7434 /* if no rates are given set it back to the defaults */
7435 if (!info->attrs[NL80211_ATTR_TX_RATES])
7436 goto out;
7437
13ae75b1
JM		 7438 /*
7439 * The nested attribute uses enum nl80211_band as the index. This maps
7440 * directly to the enum ieee80211_band values used in cfg80211.
7441 */
24db78c0 7442 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7443 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7444 {
7445 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7446 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7447 return -EINVAL;
13ae75b1 7448 sband = rdev->wiphy.bands[band];
4c476991
JB		 7449 if (sband == NULL)
7450 return -EINVAL;
13ae75b1
JM		 7451 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7452 nla_len(tx_rates), nl80211_txattr_policy);
7453 if (tb[NL80211_TXRATE_LEGACY]) {
7454 mask.control[band].legacy = rateset_to_mask(
7455 sband,
7456 nla_data(tb[NL80211_TXRATE_LEGACY]),
7457 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7458 if ((mask.control[band].legacy == 0) &&
7459 nla_len(tb[NL80211_TXRATE_LEGACY]))
7460 return -EINVAL;
24db78c0 7461 }
d1e33e65 7462 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7463 if (!ht_rateset_to_mask(
7464 sband,
d1e33e65
JD		 7465 nla_data(tb[NL80211_TXRATE_HT]),
7466 nla_len(tb[NL80211_TXRATE_HT]),
7467 mask.control[band].ht_mcs))
24db78c0
SW		 7468 return -EINVAL;
7469 }
204e35a9
JD		 7470 if (tb[NL80211_TXRATE_VHT]) {
7471 if (!vht_set_mcs_mask(
7472 sband,
7473 nla_data(tb[NL80211_TXRATE_VHT]),
7474 mask.control[band].vht_mcs))
7475 return -EINVAL;
7476 }
24db78c0
SW		 7477
7478 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7479 /* don't allow empty legacy rates if HT or VHT
7480 * are not even supported.
7481 */
7482 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7483 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7484 return -EINVAL;
7485
7486 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7487 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7488 goto out;
7489
7490 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7491 if (mask.control[band].vht_mcs[i])
7492 goto out;
24db78c0
SW		 7493
7494 /* legacy and mcs rates may not be both empty */
204e35a9 7495 return -EINVAL;
13ae75b1
JM		 7496 }
7497 }
7498
b9243ab0 7499out:
e35e4d28 7500 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7501}
7502
2e161f78 7503static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7504{
4c476991 7505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7506 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7507 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7508
7509 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7510 return -EINVAL;
7511
2e161f78
JB		 7512 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7513 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7514
71bbc994
JB		 7515 switch (wdev->iftype) {
7516 case NL80211_IFTYPE_STATION:
7517 case NL80211_IFTYPE_ADHOC:
7518 case NL80211_IFTYPE_P2P_CLIENT:
7519 case NL80211_IFTYPE_AP:
7520 case NL80211_IFTYPE_AP_VLAN:
7521 case NL80211_IFTYPE_MESH_POINT:
7522 case NL80211_IFTYPE_P2P_GO:
98104fde 7523 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7524 break;
7525 default:
4c476991 7526 return -EOPNOTSUPP;
71bbc994 7527 }
026331c4
JM		 7528
7529 /* not much point in registering if we can't reply */
4c476991
JB		 7530 if (!rdev->ops->mgmt_tx)
7531 return -EOPNOTSUPP;
026331c4 7532
15e47304 7533 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7534 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7535 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7536}
7537
2e161f78 7538static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7539{
4c476991 7540 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7541 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7542 struct cfg80211_chan_def chandef;
026331c4 7543 int err;
d64d373f 7544 void *hdr = NULL;
026331c4 7545 u64 cookie;
e247bd90 7546 struct sk_buff *msg = NULL;
b176e629
AO		 7547 struct cfg80211_mgmt_tx_params params = {
7548 .dont_wait_for_ack =
7549 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7550 };
026331c4 7551
683b6d3b 7552 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7553 return -EINVAL;
7554
4c476991
JB		 7555 if (!rdev->ops->mgmt_tx)
7556 return -EOPNOTSUPP;
026331c4 7557
71bbc994 7558 switch (wdev->iftype) {
ea141b75
AQ		 7559 case NL80211_IFTYPE_P2P_DEVICE:
7560 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7561 return -EINVAL;
71bbc994
JB		 7562 case NL80211_IFTYPE_STATION:
7563 case NL80211_IFTYPE_ADHOC:
7564 case NL80211_IFTYPE_P2P_CLIENT:
7565 case NL80211_IFTYPE_AP:
7566 case NL80211_IFTYPE_AP_VLAN:
7567 case NL80211_IFTYPE_MESH_POINT:
7568 case NL80211_IFTYPE_P2P_GO:
7569 break;
7570 default:
4c476991 7571 return -EOPNOTSUPP;
71bbc994 7572 }
026331c4 7573
f7ca38df 7574 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7575 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7576 return -EINVAL;
b176e629 7577 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7578
7579 /*
7580 * We should wait on the channel for at least a minimum amount
7581 * of time (10ms) but no longer than the driver supports.
7582 */
b176e629
AO		 7583 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7584 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7585 return -EINVAL;
7586
f7ca38df
JB		 7587 }
7588
b176e629 7589 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7590
b176e629 7591 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7592 return -EINVAL;
7593
b176e629 7594 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7595
ea141b75
AQ		 7596 /* get the channel if any has been specified, otherwise pass NULL to
7597 * the driver. The latter will use the current one
7598 */
7599 chandef.chan = NULL;
7600 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7601 err = nl80211_parse_chandef(rdev, info, &chandef);
7602 if (err)
7603 return err;
7604 }
7605
b176e629 7606 if (!chandef.chan && params.offchan)
ea141b75 7607 return -EINVAL;
026331c4 7608
b176e629 7609 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7610 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7611 if (!msg)
7612 return -ENOMEM;
026331c4 7613
15e47304 7614 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7615 NL80211_CMD_FRAME);
cb35fba3
DC		 7616 if (!hdr) {
7617 err = -ENOBUFS;
e247bd90
JB		 7618 goto free_msg;
7619 }
026331c4 7620 }
e247bd90 7621
b176e629
AO		 7622 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7623 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7624 params.chan = chandef.chan;
7625 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7626 if (err)
7627 goto free_msg;
7628
e247bd90 7629 if (msg) {
9360ffd1
DM		 7630 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7631 goto nla_put_failure;
026331c4 7632
e247bd90
JB		 7633 genlmsg_end(msg, hdr);
7634 return genlmsg_reply(msg, info);
7635 }
7636
7637 return 0;
026331c4
JM		 7638
7639 nla_put_failure:
7640 err = -ENOBUFS;
7641 free_msg:
7642 nlmsg_free(msg);
026331c4
JM		 7643 return err;
7644}
7645
f7ca38df
JB		 7646static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7647{
7648 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7649 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7650 u64 cookie;
7651
7652 if (!info->attrs[NL80211_ATTR_COOKIE])
7653 return -EINVAL;
7654
7655 if (!rdev->ops->mgmt_tx_cancel_wait)
7656 return -EOPNOTSUPP;
7657
71bbc994
JB		 7658 switch (wdev->iftype) {
7659 case NL80211_IFTYPE_STATION:
7660 case NL80211_IFTYPE_ADHOC:
7661 case NL80211_IFTYPE_P2P_CLIENT:
7662 case NL80211_IFTYPE_AP:
7663 case NL80211_IFTYPE_AP_VLAN:
7664 case NL80211_IFTYPE_P2P_GO:
98104fde 7665 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7666 break;
7667 default:
f7ca38df 7668 return -EOPNOTSUPP;
71bbc994 7669 }
f7ca38df
JB		 7670
7671 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7672
e35e4d28 7673 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7674}
7675
ffb9eb3d
KV		 7676static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7677{
4c476991 7678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7679 struct wireless_dev *wdev;
4c476991 7680 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7681 u8 ps_state;
7682 bool state;
7683 int err;
7684
4c476991
JB		 7685 if (!info->attrs[NL80211_ATTR_PS_STATE])
7686 return -EINVAL;
ffb9eb3d
KV		 7687
7688 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7689
4c476991
JB		 7690 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7691 return -EINVAL;
ffb9eb3d
KV		 7692
7693 wdev = dev->ieee80211_ptr;
7694
4c476991
JB		 7695 if (!rdev->ops->set_power_mgmt)
7696 return -EOPNOTSUPP;
ffb9eb3d
KV		 7697
7698 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7699
7700 if (state == wdev->ps)
4c476991 7701 return 0;
ffb9eb3d 7702
e35e4d28 7703 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7704 if (!err)
7705 wdev->ps = state;
ffb9eb3d
KV		 7706 return err;
7707}
7708
7709static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7710{
4c476991 7711 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7712 enum nl80211_ps_state ps_state;
7713 struct wireless_dev *wdev;
4c476991 7714 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7715 struct sk_buff *msg;
7716 void *hdr;
7717 int err;
7718
ffb9eb3d
KV		 7719 wdev = dev->ieee80211_ptr;
7720
4c476991
JB		 7721 if (!rdev->ops->set_power_mgmt)
7722 return -EOPNOTSUPP;
ffb9eb3d
KV		 7723
7724 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7725 if (!msg)
7726 return -ENOMEM;
ffb9eb3d 7727
15e47304 7728 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7729 NL80211_CMD_GET_POWER_SAVE);
7730 if (!hdr) {
4c476991 7731 err = -ENOBUFS;
ffb9eb3d
KV		 7732 goto free_msg;
7733 }
7734
7735 if (wdev->ps)
7736 ps_state = NL80211_PS_ENABLED;
7737 else
7738 ps_state = NL80211_PS_DISABLED;
7739
9360ffd1
DM		 7740 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7741 goto nla_put_failure;
ffb9eb3d
KV		 7742
7743 genlmsg_end(msg, hdr);
4c476991 7744 return genlmsg_reply(msg, info);
ffb9eb3d 7745
4c476991 7746 nla_put_failure:
ffb9eb3d 7747 err = -ENOBUFS;
4c476991 7748 free_msg:
ffb9eb3d 7749 nlmsg_free(msg);
ffb9eb3d
KV		 7750 return err;
7751}
7752
d6dc1a38
JO		 7753static struct nla_policy
7754nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7755 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7756 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7757 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7758 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7759 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7760 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7761};
7762
84f10708 7763static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7764 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7765{
7766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 7767 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7768 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 7769
d9d8b019 7770 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7771 return -EINVAL;
7772
84f10708
TP		 7773 if (!rdev->ops->set_cqm_txe_config)
7774 return -EOPNOTSUPP;
7775
7776 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7777 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7778 return -EOPNOTSUPP;
7779
e35e4d28 7780 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7781}
7782
d6dc1a38
JO		 7783static int nl80211_set_cqm_rssi(struct genl_info *info,
7784 s32 threshold, u32 hysteresis)
7785{
4c476991 7786 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 7787 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7788 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 7789
7790 if (threshold > 0)
7791 return -EINVAL;
7792
1da5fcc8
JB		 7793 /* disabling - hysteresis should also be zero then */
7794 if (threshold == 0)
7795 hysteresis = 0;
d6dc1a38 7796
4c476991
JB		 7797 if (!rdev->ops->set_cqm_rssi_config)
7798 return -EOPNOTSUPP;
d6dc1a38 7799
074ac8df 7800 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7801 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7802 return -EOPNOTSUPP;
d6dc1a38 7803
e35e4d28 7804 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7805}
7806
7807static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7808{
7809 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7810 struct nlattr *cqm;
7811 int err;
7812
7813 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 7814 if (!cqm)
7815 return -EINVAL;
d6dc1a38
JO		 7816
7817 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7818 nl80211_attr_cqm_policy);
7819 if (err)
1da5fcc8 7820 return err;
d6dc1a38
JO		 7821
7822 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7823 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 7824 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7825 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 7826
1da5fcc8
JB		 7827 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
7828 }
7829
7830 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7831 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7832 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7833 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7834 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7835 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7836
7837 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
7838 }
7839
7840 return -EINVAL;
d6dc1a38
JO		 7841}
7842
29cbe68c
JB		 7843static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7844{
7845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7846 struct net_device *dev = info->user_ptr[1];
7847 struct mesh_config cfg;
c80d545d 7848 struct mesh_setup setup;
29cbe68c
JB		 7849 int err;
7850
7851 /* start with default */
7852 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7853 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7854
24bdd9f4 7855 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7856 /* and parse parameters if given */
24bdd9f4 7857 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7858 if (err)
7859 return err;
7860 }
7861
7862 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7863 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7864 return -EINVAL;
7865
c80d545d
JC		 7866 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7867 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7868
4bb62344
CYY		 7869 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7870 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7871 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7872 return -EINVAL;
7873
9bdbf04d
MP		 7874 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7875 setup.beacon_interval =
7876 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7877 if (setup.beacon_interval < 10 ||
7878 setup.beacon_interval > 10000)
7879 return -EINVAL;
7880 }
7881
7882 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7883 setup.dtim_period =
7884 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7885 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7886 return -EINVAL;
7887 }
7888
c80d545d
JC		 7889 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7890 /* parse additional setup parameters if given */
7891 err = nl80211_parse_mesh_setup(info, &setup);
7892 if (err)
7893 return err;
7894 }
7895
d37bb18a
TP		 7896 if (setup.user_mpm)
7897 cfg.auto_open_plinks = false;
7898
cc1d2806 7899 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7900 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7901 if (err)
7902 return err;
cc1d2806
JB		 7903 } else {
7904 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7905 setup.chandef.chan = NULL;
cc1d2806
JB		 7906 }
7907
ffb3cf30
AN		 7908 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7909 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7910 int n_rates =
7911 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7912 struct ieee80211_supported_band *sband;
7913
7914 if (!setup.chandef.chan)
7915 return -EINVAL;
7916
7917 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7918
7919 err = ieee80211_get_ratemask(sband, rates, n_rates,
7920 &setup.basic_rates);
7921 if (err)
7922 return err;
7923 }
7924
c80d545d 7925 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7926}
7927
7928static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7929{
7930 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7931 struct net_device *dev = info->user_ptr[1];
7932
7933 return cfg80211_leave_mesh(rdev, dev);
7934}
7935
dfb89c56 7936#ifdef CONFIG_PM
bb92d199
AK		 7937static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7938 struct cfg80211_registered_device *rdev)
7939{
6abb9cb9 7940 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 7941 struct nlattr *nl_pats, *nl_pat;
7942 int i, pat_len;
7943
6abb9cb9 7944 if (!wowlan->n_patterns)
bb92d199
AK		 7945 return 0;
7946
7947 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7948 if (!nl_pats)
7949 return -ENOBUFS;
7950
6abb9cb9 7951 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 7952 nl_pat = nla_nest_start(msg, i + 1);
7953 if (!nl_pat)
7954 return -ENOBUFS;
6abb9cb9 7955 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 7956 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 7957 wowlan->patterns[i].mask) ||
50ac6607
AK		 7958 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
7959 wowlan->patterns[i].pattern) ||
7960 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 7961 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 7962 return -ENOBUFS;
7963 nla_nest_end(msg, nl_pat);
7964 }
7965 nla_nest_end(msg, nl_pats);
7966
7967 return 0;
7968}
7969
2a0e047e
JB		 7970static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7971 struct cfg80211_wowlan_tcp *tcp)
7972{
7973 struct nlattr *nl_tcp;
7974
7975 if (!tcp)
7976 return 0;
7977
7978 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7979 if (!nl_tcp)
7980 return -ENOBUFS;
7981
7982 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7983 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7984 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7985 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7986 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7987 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7988 tcp->payload_len, tcp->payload) ||
7989 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7990 tcp->data_interval) ||
7991 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7992 tcp->wake_len, tcp->wake_data) ||
7993 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7994 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7995 return -ENOBUFS;
7996
7997 if (tcp->payload_seq.len &&
7998 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7999 sizeof(tcp->payload_seq), &tcp->payload_seq))
8000 return -ENOBUFS;
8001
8002 if (tcp->payload_tok.len &&
8003 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8004 sizeof(tcp->payload_tok) + tcp->tokens_size,
8005 &tcp->payload_tok))
8006 return -ENOBUFS;
8007
e248ad30
JB		 8008 nla_nest_end(msg, nl_tcp);
8009
2a0e047e
JB		 8010 return 0;
8011}
8012
ff1b6e69
JB		 8013static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8014{
8015 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8016 struct sk_buff *msg;
8017 void *hdr;
2a0e047e 8018 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8019
964dc9e2 8020 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8021 return -EOPNOTSUPP;
8022
6abb9cb9 8023 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8024 /* adjust size to have room for all the data */
6abb9cb9
JB		 8025 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8026 rdev->wiphy.wowlan_config->tcp->payload_len +
8027 rdev->wiphy.wowlan_config->tcp->wake_len +
8028 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8029 }
8030
8031 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8032 if (!msg)
8033 return -ENOMEM;
8034
15e47304 8035 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8036 NL80211_CMD_GET_WOWLAN);
8037 if (!hdr)
8038 goto nla_put_failure;
8039
6abb9cb9 8040 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8041 struct nlattr *nl_wowlan;
8042
8043 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8044 if (!nl_wowlan)
8045 goto nla_put_failure;
8046
6abb9cb9 8047 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8048 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8049 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8050 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8051 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8052 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8053 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8054 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8055 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8056 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8057 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8058 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8059 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8060 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8061 goto nla_put_failure;
2a0e047e 8062
bb92d199
AK		 8063 if (nl80211_send_wowlan_patterns(msg, rdev))
8064 goto nla_put_failure;
2a0e047e 8065
6abb9cb9
JB		 8066 if (nl80211_send_wowlan_tcp(msg,
8067 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8068 goto nla_put_failure;
8069
ff1b6e69
JB		 8070 nla_nest_end(msg, nl_wowlan);
8071 }
8072
8073 genlmsg_end(msg, hdr);
8074 return genlmsg_reply(msg, info);
8075
8076nla_put_failure:
8077 nlmsg_free(msg);
8078 return -ENOBUFS;
8079}
8080
2a0e047e
JB		 8081static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8082 struct nlattr *attr,
8083 struct cfg80211_wowlan *trig)
8084{
8085 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8086 struct cfg80211_wowlan_tcp *cfg;
8087 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8088 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8089 u32 size;
8090 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8091 int err, port;
8092
964dc9e2 8093 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8094 return -EINVAL;
8095
8096 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8097 nla_data(attr), nla_len(attr),
8098 nl80211_wowlan_tcp_policy);
8099 if (err)
8100 return err;
8101
8102 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8103 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8104 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8105 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8106 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8107 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8108 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8109 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8110 return -EINVAL;
8111
8112 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8113 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8114 return -EINVAL;
8115
8116 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8117 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8118 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8119 return -EINVAL;
8120
8121 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8122 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8123 return -EINVAL;
8124
8125 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8126 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8127 return -EINVAL;
8128
8129 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8130 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8131
8132 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8133 tokens_size = tokln - sizeof(*tok);
8134
8135 if (!tok->len || tokens_size % tok->len)
8136 return -EINVAL;
964dc9e2 8137 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8138 return -EINVAL;
964dc9e2 8139 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8140 return -EINVAL;
964dc9e2 8141 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8142 return -EINVAL;
964dc9e2 8143 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8144 return -EINVAL;
8145 if (tok->offset + tok->len > data_size)
8146 return -EINVAL;
8147 }
8148
8149 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8150 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8151 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8152 return -EINVAL;
8153 if (seq->len == 0 || seq->len > 4)
8154 return -EINVAL;
8155 if (seq->len + seq->offset > data_size)
8156 return -EINVAL;
8157 }
8158
8159 size = sizeof(*cfg);
8160 size += data_size;
8161 size += wake_size + wake_mask_size;
8162 size += tokens_size;
8163
8164 cfg = kzalloc(size, GFP_KERNEL);
8165 if (!cfg)
8166 return -ENOMEM;
8167 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8168 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8169 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8170 ETH_ALEN);
8171 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8172 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8173 else
8174 port = 0;
8175#ifdef CONFIG_INET
8176 /* allocate a socket and port for it and use it */
8177 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8178 IPPROTO_TCP, &cfg->sock, 1);
8179 if (err) {
8180 kfree(cfg);
8181 return err;
8182 }
8183 if (inet_csk_get_port(cfg->sock->sk, port)) {
8184 sock_release(cfg->sock);
8185 kfree(cfg);
8186 return -EADDRINUSE;
8187 }
8188 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8189#else
8190 if (!port) {
8191 kfree(cfg);
8192 return -EINVAL;
8193 }
8194 cfg->src_port = port;
8195#endif
8196
8197 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8198 cfg->payload_len = data_size;
8199 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8200 memcpy((void *)cfg->payload,
8201 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8202 data_size);
8203 if (seq)
8204 cfg->payload_seq = *seq;
8205 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8206 cfg->wake_len = wake_size;
8207 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8208 memcpy((void *)cfg->wake_data,
8209 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8210 wake_size);
8211 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8212 data_size + wake_size;
8213 memcpy((void *)cfg->wake_mask,
8214 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8215 wake_mask_size);
8216 if (tok) {
8217 cfg->tokens_size = tokens_size;
8218 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8219 }
8220
8221 trig->tcp = cfg;
8222
8223 return 0;
8224}
8225
ff1b6e69
JB		 8226static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8227{
8228 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8229 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8230 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8231 struct cfg80211_wowlan *ntrig;
964dc9e2 8232 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8233 int err, i;
6abb9cb9 8234 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8235
964dc9e2 8236 if (!wowlan)
ff1b6e69
JB		 8237 return -EOPNOTSUPP;
8238
ae33bd81
JB		 8239 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8240 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8241 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8242 goto set_wakeup;
8243 }
ff1b6e69
JB		 8244
8245 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8246 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8247 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8248 nl80211_wowlan_policy);
8249 if (err)
8250 return err;
8251
8252 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8253 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8254 return -EINVAL;
8255 new_triggers.any = true;
8256 }
8257
8258 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8259 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8260 return -EINVAL;
8261 new_triggers.disconnect = true;
8262 }
8263
8264 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8265 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8266 return -EINVAL;
8267 new_triggers.magic_pkt = true;
8268 }
8269
77dbbb13
JB		 8270 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8271 return -EINVAL;
8272
8273 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8274 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8275 return -EINVAL;
8276 new_triggers.gtk_rekey_failure = true;
8277 }
8278
8279 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8280 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8281 return -EINVAL;
8282 new_triggers.eap_identity_req = true;
8283 }
8284
8285 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8286 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8287 return -EINVAL;
8288 new_triggers.four_way_handshake = true;
8289 }
8290
8291 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8292 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8293 return -EINVAL;
8294 new_triggers.rfkill_release = true;
8295 }
8296
ff1b6e69
JB		 8297 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8298 struct nlattr *pat;
8299 int n_patterns = 0;
bb92d199 8300 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8301 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8302
8303 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8304 rem)
8305 n_patterns++;
8306 if (n_patterns > wowlan->n_patterns)
8307 return -EINVAL;
8308
8309 new_triggers.patterns = kcalloc(n_patterns,
8310 sizeof(new_triggers.patterns[0]),
8311 GFP_KERNEL);
8312 if (!new_triggers.patterns)
8313 return -ENOMEM;
8314
8315 new_triggers.n_patterns = n_patterns;
8316 i = 0;
8317
8318 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8319 rem) {
50ac6607
AK		 8320 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8321 nla_len(pat), NULL);
ff1b6e69 8322 err = -EINVAL;
50ac6607
AK		 8323 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8324 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8325 goto error;
50ac6607 8326 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8327 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8328 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8329 goto error;
8330 if (pat_len > wowlan->pattern_max_len ||
8331 pat_len < wowlan->pattern_min_len)
8332 goto error;
8333
50ac6607 8334 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8335 pkt_offset = 0;
8336 else
8337 pkt_offset = nla_get_u32(
50ac6607 8338 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8339 if (pkt_offset > wowlan->max_pkt_offset)
8340 goto error;
8341 new_triggers.patterns[i].pkt_offset = pkt_offset;
8342
ff1b6e69
JB		 8343 new_triggers.patterns[i].mask =
8344 kmalloc(mask_len + pat_len, GFP_KERNEL);
8345 if (!new_triggers.patterns[i].mask) {
8346 err = -ENOMEM;
8347 goto error;
8348 }
8349 new_triggers.patterns[i].pattern =
8350 new_triggers.patterns[i].mask + mask_len;
8351 memcpy(new_triggers.patterns[i].mask,
50ac6607 8352 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8353 mask_len);
8354 new_triggers.patterns[i].pattern_len = pat_len;
8355 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8356 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8357 pat_len);
8358 i++;
8359 }
8360 }
8361
2a0e047e
JB		 8362 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8363 err = nl80211_parse_wowlan_tcp(
8364 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8365 &new_triggers);
8366 if (err)
8367 goto error;
8368 }
8369
ae33bd81
JB		 8370 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8371 if (!ntrig) {
8372 err = -ENOMEM;
8373 goto error;
ff1b6e69 8374 }
ae33bd81 8375 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8376 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8377
ae33bd81 8378 set_wakeup:
6abb9cb9
JB		 8379 if (rdev->ops->set_wakeup &&
8380 prev_enabled != !!rdev->wiphy.wowlan_config)
8381 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8382
ff1b6e69
JB		 8383 return 0;
8384 error:
8385 for (i = 0; i < new_triggers.n_patterns; i++)
8386 kfree(new_triggers.patterns[i].mask);
8387 kfree(new_triggers.patterns);
2a0e047e
JB		 8388 if (new_triggers.tcp && new_triggers.tcp->sock)
8389 sock_release(new_triggers.tcp->sock);
8390 kfree(new_triggers.tcp);
ff1b6e69
JB		 8391 return err;
8392}
dfb89c56 8393#endif
ff1b6e69 8394
be29b99a
AK		 8395static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8396 struct cfg80211_registered_device *rdev)
8397{
8398 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8399 int i, j, pat_len;
8400 struct cfg80211_coalesce_rules *rule;
8401
8402 if (!rdev->coalesce->n_rules)
8403 return 0;
8404
8405 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8406 if (!nl_rules)
8407 return -ENOBUFS;
8408
8409 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8410 nl_rule = nla_nest_start(msg, i + 1);
8411 if (!nl_rule)
8412 return -ENOBUFS;
8413
8414 rule = &rdev->coalesce->rules[i];
8415 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8416 rule->delay))
8417 return -ENOBUFS;
8418
8419 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8420 rule->condition))
8421 return -ENOBUFS;
8422
8423 nl_pats = nla_nest_start(msg,
8424 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8425 if (!nl_pats)
8426 return -ENOBUFS;
8427
8428 for (j = 0; j < rule->n_patterns; j++) {
8429 nl_pat = nla_nest_start(msg, j + 1);
8430 if (!nl_pat)
8431 return -ENOBUFS;
8432 pat_len = rule->patterns[j].pattern_len;
8433 if (nla_put(msg, NL80211_PKTPAT_MASK,
8434 DIV_ROUND_UP(pat_len, 8),
8435 rule->patterns[j].mask) ||
8436 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8437 rule->patterns[j].pattern) ||
8438 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8439 rule->patterns[j].pkt_offset))
8440 return -ENOBUFS;
8441 nla_nest_end(msg, nl_pat);
8442 }
8443 nla_nest_end(msg, nl_pats);
8444 nla_nest_end(msg, nl_rule);
8445 }
8446 nla_nest_end(msg, nl_rules);
8447
8448 return 0;
8449}
8450
8451static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8452{
8453 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8454 struct sk_buff *msg;
8455 void *hdr;
8456
8457 if (!rdev->wiphy.coalesce)
8458 return -EOPNOTSUPP;
8459
8460 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8461 if (!msg)
8462 return -ENOMEM;
8463
8464 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8465 NL80211_CMD_GET_COALESCE);
8466 if (!hdr)
8467 goto nla_put_failure;
8468
8469 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8470 goto nla_put_failure;
8471
8472 genlmsg_end(msg, hdr);
8473 return genlmsg_reply(msg, info);
8474
8475nla_put_failure:
8476 nlmsg_free(msg);
8477 return -ENOBUFS;
8478}
8479
8480void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8481{
8482 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8483 int i, j;
8484 struct cfg80211_coalesce_rules *rule;
8485
8486 if (!coalesce)
8487 return;
8488
8489 for (i = 0; i < coalesce->n_rules; i++) {
8490 rule = &coalesce->rules[i];
8491 for (j = 0; j < rule->n_patterns; j++)
8492 kfree(rule->patterns[j].mask);
8493 kfree(rule->patterns);
8494 }
8495 kfree(coalesce->rules);
8496 kfree(coalesce);
8497 rdev->coalesce = NULL;
8498}
8499
8500static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8501 struct nlattr *rule,
8502 struct cfg80211_coalesce_rules *new_rule)
8503{
8504 int err, i;
8505 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8506 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8507 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8508 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8509
8510 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8511 nla_len(rule), nl80211_coalesce_policy);
8512 if (err)
8513 return err;
8514
8515 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8516 new_rule->delay =
8517 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8518 if (new_rule->delay > coalesce->max_delay)
8519 return -EINVAL;
8520
8521 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8522 new_rule->condition =
8523 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8524 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8525 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8526 return -EINVAL;
8527
8528 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8529 return -EINVAL;
8530
8531 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8532 rem)
8533 n_patterns++;
8534 if (n_patterns > coalesce->n_patterns)
8535 return -EINVAL;
8536
8537 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8538 GFP_KERNEL);
8539 if (!new_rule->patterns)
8540 return -ENOMEM;
8541
8542 new_rule->n_patterns = n_patterns;
8543 i = 0;
8544
8545 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8546 rem) {
8547 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8548 nla_len(pat), NULL);
8549 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8550 !pat_tb[NL80211_PKTPAT_PATTERN])
8551 return -EINVAL;
8552 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8553 mask_len = DIV_ROUND_UP(pat_len, 8);
8554 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8555 return -EINVAL;
8556 if (pat_len > coalesce->pattern_max_len ||
8557 pat_len < coalesce->pattern_min_len)
8558 return -EINVAL;
8559
8560 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8561 pkt_offset = 0;
8562 else
8563 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8564 if (pkt_offset > coalesce->max_pkt_offset)
8565 return -EINVAL;
8566 new_rule->patterns[i].pkt_offset = pkt_offset;
8567
8568 new_rule->patterns[i].mask =
8569 kmalloc(mask_len + pat_len, GFP_KERNEL);
8570 if (!new_rule->patterns[i].mask)
8571 return -ENOMEM;
8572 new_rule->patterns[i].pattern =
8573 new_rule->patterns[i].mask + mask_len;
8574 memcpy(new_rule->patterns[i].mask,
8575 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8576 new_rule->patterns[i].pattern_len = pat_len;
8577 memcpy(new_rule->patterns[i].pattern,
8578 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8579 i++;
8580 }
8581
8582 return 0;
8583}
8584
8585static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8586{
8587 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8588 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8589 struct cfg80211_coalesce new_coalesce = {};
8590 struct cfg80211_coalesce *n_coalesce;
8591 int err, rem_rule, n_rules = 0, i, j;
8592 struct nlattr *rule;
8593 struct cfg80211_coalesce_rules *tmp_rule;
8594
8595 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8596 return -EOPNOTSUPP;
8597
8598 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8599 cfg80211_rdev_free_coalesce(rdev);
8600 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8601 return 0;
8602 }
8603
8604 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8605 rem_rule)
8606 n_rules++;
8607 if (n_rules > coalesce->n_rules)
8608 return -EINVAL;
8609
8610 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8611 GFP_KERNEL);
8612 if (!new_coalesce.rules)
8613 return -ENOMEM;
8614
8615 new_coalesce.n_rules = n_rules;
8616 i = 0;
8617
8618 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8619 rem_rule) {
8620 err = nl80211_parse_coalesce_rule(rdev, rule,
8621 &new_coalesce.rules[i]);
8622 if (err)
8623 goto error;
8624
8625 i++;
8626 }
8627
8628 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8629 if (err)
8630 goto error;
8631
8632 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8633 if (!n_coalesce) {
8634 err = -ENOMEM;
8635 goto error;
8636 }
8637 cfg80211_rdev_free_coalesce(rdev);
8638 rdev->coalesce = n_coalesce;
8639
8640 return 0;
8641error:
8642 for (i = 0; i < new_coalesce.n_rules; i++) {
8643 tmp_rule = &new_coalesce.rules[i];
8644 for (j = 0; j < tmp_rule->n_patterns; j++)
8645 kfree(tmp_rule->patterns[j].mask);
8646 kfree(tmp_rule->patterns);
8647 }
8648 kfree(new_coalesce.rules);
8649
8650 return err;
8651}
8652
e5497d76
JB		 8653static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8654{
8655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8656 struct net_device *dev = info->user_ptr[1];
8657 struct wireless_dev *wdev = dev->ieee80211_ptr;
8658 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8659 struct cfg80211_gtk_rekey_data rekey_data;
8660 int err;
8661
8662 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8663 return -EINVAL;
8664
8665 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8666 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8667 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8668 nl80211_rekey_policy);
8669 if (err)
8670 return err;
8671
8672 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8673 return -ERANGE;
8674 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8675 return -ERANGE;
8676 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8677 return -ERANGE;
8678
8679 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8680 NL80211_KEK_LEN);
8681 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8682 NL80211_KCK_LEN);
8683 memcpy(rekey_data.replay_ctr,
8684 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8685 NL80211_REPLAY_CTR_LEN);
8686
8687 wdev_lock(wdev);
8688 if (!wdev->current_bss) {
8689 err = -ENOTCONN;
8690 goto out;
8691 }
8692
8693 if (!rdev->ops->set_rekey_data) {
8694 err = -EOPNOTSUPP;
8695 goto out;
8696 }
8697
e35e4d28 8698 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8699 out:
8700 wdev_unlock(wdev);
8701 return err;
8702}
8703
28946da7
JB		 8704static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8705 struct genl_info *info)
8706{
8707 struct net_device *dev = info->user_ptr[1];
8708 struct wireless_dev *wdev = dev->ieee80211_ptr;
8709
8710 if (wdev->iftype != NL80211_IFTYPE_AP &&
8711 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8712 return -EINVAL;
8713
15e47304 8714 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8715 return -EBUSY;
8716
15e47304 8717 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8718 return 0;
8719}
8720
7f6cf311
JB		 8721static int nl80211_probe_client(struct sk_buff *skb,
8722 struct genl_info *info)
8723{
8724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8725 struct net_device *dev = info->user_ptr[1];
8726 struct wireless_dev *wdev = dev->ieee80211_ptr;
8727 struct sk_buff *msg;
8728 void *hdr;
8729 const u8 *addr;
8730 u64 cookie;
8731 int err;
8732
8733 if (wdev->iftype != NL80211_IFTYPE_AP &&
8734 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8735 return -EOPNOTSUPP;
8736
8737 if (!info->attrs[NL80211_ATTR_MAC])
8738 return -EINVAL;
8739
8740 if (!rdev->ops->probe_client)
8741 return -EOPNOTSUPP;
8742
8743 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8744 if (!msg)
8745 return -ENOMEM;
8746
15e47304 8747 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8748 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8749 if (!hdr) {
8750 err = -ENOBUFS;
7f6cf311
JB		 8751 goto free_msg;
8752 }
8753
8754 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8755
e35e4d28 8756 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8757 if (err)
8758 goto free_msg;
8759
9360ffd1
DM		 8760 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8761 goto nla_put_failure;
7f6cf311
JB		 8762
8763 genlmsg_end(msg, hdr);
8764
8765 return genlmsg_reply(msg, info);
8766
8767 nla_put_failure:
8768 err = -ENOBUFS;
8769 free_msg:
8770 nlmsg_free(msg);
8771 return err;
8772}
8773
5e760230
JB		 8774static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8775{
8776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8777 struct cfg80211_beacon_registration *reg, *nreg;
8778 int rv;
5e760230
JB		 8779
8780 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8781 return -EOPNOTSUPP;
8782
37c73b5f
BG		 8783 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8784 if (!nreg)
8785 return -ENOMEM;
8786
8787 /* First, check if already registered. */
8788 spin_lock_bh(&rdev->beacon_registrations_lock);
8789 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8790 if (reg->nlportid == info->snd_portid) {
8791 rv = -EALREADY;
8792 goto out_err;
8793 }
8794 }
8795 /* Add it to the list */
8796 nreg->nlportid = info->snd_portid;
8797 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8798
37c73b5f 8799 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8800
8801 return 0;
37c73b5f
BG		 8802out_err:
8803 spin_unlock_bh(&rdev->beacon_registrations_lock);
8804 kfree(nreg);
8805 return rv;
5e760230
JB		 8806}
8807
98104fde
JB		 8808static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8809{
8810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8811 struct wireless_dev *wdev = info->user_ptr[1];
8812 int err;
8813
8814 if (!rdev->ops->start_p2p_device)
8815 return -EOPNOTSUPP;
8816
8817 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8818 return -EOPNOTSUPP;
8819
8820 if (wdev->p2p_started)
8821 return 0;
8822
98104fde 8823 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8824 if (err)
8825 return err;
8826
eeb126e9 8827 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8828 if (err)
8829 return err;
8830
8831 wdev->p2p_started = true;
98104fde 8832 rdev->opencount++;
98104fde
JB		 8833
8834 return 0;
8835}
8836
8837static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8838{
8839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8840 struct wireless_dev *wdev = info->user_ptr[1];
8841
8842 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8843 return -EOPNOTSUPP;
8844
8845 if (!rdev->ops->stop_p2p_device)
8846 return -EOPNOTSUPP;
8847
f9f47529 8848 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8849
8850 return 0;
8851}
8852
3713b4e3
JB		 8853static int nl80211_get_protocol_features(struct sk_buff *skb,
8854 struct genl_info *info)
8855{
8856 void *hdr;
8857 struct sk_buff *msg;
8858
8859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8860 if (!msg)
8861 return -ENOMEM;
8862
8863 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8864 NL80211_CMD_GET_PROTOCOL_FEATURES);
8865 if (!hdr)
8866 goto nla_put_failure;
8867
8868 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8869 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8870 goto nla_put_failure;
8871
8872 genlmsg_end(msg, hdr);
8873 return genlmsg_reply(msg, info);
8874
8875 nla_put_failure:
8876 kfree_skb(msg);
8877 return -ENOBUFS;
8878}
8879
355199e0
JM		 8880static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8881{
8882 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8883 struct cfg80211_update_ft_ies_params ft_params;
8884 struct net_device *dev = info->user_ptr[1];
8885
8886 if (!rdev->ops->update_ft_ies)
8887 return -EOPNOTSUPP;
8888
8889 if (!info->attrs[NL80211_ATTR_MDID] ||
8890 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8891 return -EINVAL;
8892
8893 memset(&ft_params, 0, sizeof(ft_params));
8894 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8895 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8896 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8897
8898 return rdev_update_ft_ies(rdev, dev, &ft_params);
8899}
8900
5de17984
AS		 8901static int nl80211_crit_protocol_start(struct sk_buff *skb,
8902 struct genl_info *info)
8903{
8904 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8905 struct wireless_dev *wdev = info->user_ptr[1];
8906 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8907 u16 duration;
8908 int ret;
8909
8910 if (!rdev->ops->crit_proto_start)
8911 return -EOPNOTSUPP;
8912
8913 if (WARN_ON(!rdev->ops->crit_proto_stop))
8914 return -EINVAL;
8915
8916 if (rdev->crit_proto_nlportid)
8917 return -EBUSY;
8918
8919 /* determine protocol if provided */
8920 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8921 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8922
8923 if (proto >= NUM_NL80211_CRIT_PROTO)
8924 return -EINVAL;
8925
8926 /* timeout must be provided */
8927 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8928 return -EINVAL;
8929
8930 duration =
8931 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8932
8933 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8934 return -ERANGE;
8935
8936 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8937 if (!ret)
8938 rdev->crit_proto_nlportid = info->snd_portid;
8939
8940 return ret;
8941}
8942
8943static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8944 struct genl_info *info)
8945{
8946 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8947 struct wireless_dev *wdev = info->user_ptr[1];
8948
8949 if (!rdev->ops->crit_proto_stop)
8950 return -EOPNOTSUPP;
8951
8952 if (rdev->crit_proto_nlportid) {
8953 rdev->crit_proto_nlportid = 0;
8954 rdev_crit_proto_stop(rdev, wdev);
8955 }
8956 return 0;
8957}
8958
ad7e718c
JB		 8959static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
8960{
8961 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8962 struct wireless_dev *wdev =
8963 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
8964 int i, err;
8965 u32 vid, subcmd;
8966
8967 if (!rdev->wiphy.vendor_commands)
8968 return -EOPNOTSUPP;
8969
8970 if (IS_ERR(wdev)) {
8971 err = PTR_ERR(wdev);
8972 if (err != -EINVAL)
8973 return err;
8974 wdev = NULL;
8975 } else if (wdev->wiphy != &rdev->wiphy) {
8976 return -EINVAL;
8977 }
8978
8979 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
8980 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
8981 return -EINVAL;
8982
8983 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
8984 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
8985 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
8986 const struct wiphy_vendor_command *vcmd;
8987 void *data = NULL;
8988 int len = 0;
8989
8990 vcmd = &rdev->wiphy.vendor_commands[i];
8991
8992 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
8993 continue;
8994
8995 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
8996 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
8997 if (!wdev)
8998 return -EINVAL;
8999 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9000 !wdev->netdev)
9001 return -EINVAL;
9002
9003 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9004 if (wdev->netdev &&
9005 !netif_running(wdev->netdev))
9006 return -ENETDOWN;
9007 if (!wdev->netdev && !wdev->p2p_started)
9008 return -ENETDOWN;
9009 }
9010 } else {
9011 wdev = NULL;
9012 }
9013
9014 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9015 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9016 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9017 }
9018
9019 rdev->cur_cmd_info = info;
9020 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9021 data, len);
9022 rdev->cur_cmd_info = NULL;
9023 return err;
9024 }
9025
9026 return -EOPNOTSUPP;
9027}
9028
9029struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9030 enum nl80211_commands cmd,
9031 enum nl80211_attrs attr,
9032 int approxlen)
9033{
9034 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9035
9036 if (WARN_ON(!rdev->cur_cmd_info))
9037 return NULL;
9038
9039 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9040 rdev->cur_cmd_info->snd_portid,
9041 rdev->cur_cmd_info->snd_seq,
9042 cmd, attr, GFP_KERNEL);
9043}
9044EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9045
9046int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9047{
9048 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9049 void *hdr = ((void **)skb->cb)[1];
9050 struct nlattr *data = ((void **)skb->cb)[2];
9051
9052 if (WARN_ON(!rdev->cur_cmd_info)) {
9053 kfree_skb(skb);
9054 return -EINVAL;
9055 }
9056
9057 nla_nest_end(skb, data);
9058 genlmsg_end(skb, hdr);
9059 return genlmsg_reply(skb, rdev->cur_cmd_info);
9060}
9061EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9062
9063
4c476991
JB		 9064#define NL80211_FLAG_NEED_WIPHY 0x01
9065#define NL80211_FLAG_NEED_NETDEV 0x02
9066#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9067#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9068#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9069 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9070#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9071/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9072#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9073 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9074
f84f771d 9075static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9076 struct genl_info *info)
9077{
9078 struct cfg80211_registered_device *rdev;
89a54e48 9079 struct wireless_dev *wdev;
4c476991 9080 struct net_device *dev;
4c476991
JB		 9081 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9082
9083 if (rtnl)
9084 rtnl_lock();
9085
9086 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9087 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9088 if (IS_ERR(rdev)) {
9089 if (rtnl)
9090 rtnl_unlock();
9091 return PTR_ERR(rdev);
9092 }
9093 info->user_ptr[0] = rdev;
1bf614ef
JB		 9094 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9095 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9096 ASSERT_RTNL();
9097
89a54e48
JB		 9098 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9099 info->attrs);
9100 if (IS_ERR(wdev)) {
4c476991
JB		 9101 if (rtnl)
9102 rtnl_unlock();
89a54e48 9103 return PTR_ERR(wdev);
4c476991 9104 }
89a54e48 9105
89a54e48
JB		 9106 dev = wdev->netdev;
9107 rdev = wiphy_to_dev(wdev->wiphy);
9108
1bf614ef
JB		 9109 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9110 if (!dev) {
1bf614ef
JB		 9111 if (rtnl)
9112 rtnl_unlock();
9113 return -EINVAL;
9114 }
9115
9116 info->user_ptr[1] = dev;
9117 } else {
9118 info->user_ptr[1] = wdev;
41265714 9119 }
1bf614ef
JB		 9120
9121 if (dev) {
9122 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9123 !netif_running(dev)) {
1bf614ef
JB		 9124 if (rtnl)
9125 rtnl_unlock();
9126 return -ENETDOWN;
9127 }
9128
9129 dev_hold(dev);
98104fde
JB		 9130 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9131 if (!wdev->p2p_started) {
98104fde
JB		 9132 if (rtnl)
9133 rtnl_unlock();
9134 return -ENETDOWN;
9135 }
41265714 9136 }
89a54e48 9137
4c476991 9138 info->user_ptr[0] = rdev;
4c476991
JB		 9139 }
9140
9141 return 0;
9142}
9143
f84f771d 9144static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9145 struct genl_info *info)
9146{
1bf614ef
JB		 9147 if (info->user_ptr[1]) {
9148 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9149 struct wireless_dev *wdev = info->user_ptr[1];
9150
9151 if (wdev->netdev)
9152 dev_put(wdev->netdev);
9153 } else {
9154 dev_put(info->user_ptr[1]);
9155 }
9156 }
4c476991
JB		 9157 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9158 rtnl_unlock();
9159}
9160
4534de83 9161static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9162 {
9163 .cmd = NL80211_CMD_GET_WIPHY,
9164 .doit = nl80211_get_wiphy,
9165 .dumpit = nl80211_dump_wiphy,
86e8cf98 9166 .done = nl80211_dump_wiphy_done,
55682965
JB		 9167 .policy = nl80211_policy,
9168 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9169 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9170 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9171 },
9172 {
9173 .cmd = NL80211_CMD_SET_WIPHY,
9174 .doit = nl80211_set_wiphy,
9175 .policy = nl80211_policy,
9176 .flags = GENL_ADMIN_PERM,
4c476991 9177 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9178 },
9179 {
9180 .cmd = NL80211_CMD_GET_INTERFACE,
9181 .doit = nl80211_get_interface,
9182 .dumpit = nl80211_dump_interface,
9183 .policy = nl80211_policy,
9184 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9185 .internal_flags = NL80211_FLAG_NEED_WDEV |
9186 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9187 },
9188 {
9189 .cmd = NL80211_CMD_SET_INTERFACE,
9190 .doit = nl80211_set_interface,
9191 .policy = nl80211_policy,
9192 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9193 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9194 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9195 },
9196 {
9197 .cmd = NL80211_CMD_NEW_INTERFACE,
9198 .doit = nl80211_new_interface,
9199 .policy = nl80211_policy,
9200 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9201 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9202 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9203 },
9204 {
9205 .cmd = NL80211_CMD_DEL_INTERFACE,
9206 .doit = nl80211_del_interface,
9207 .policy = nl80211_policy,
41ade00f 9208 .flags = GENL_ADMIN_PERM,
84efbb84 9209 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9210 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9211 },
9212 {
9213 .cmd = NL80211_CMD_GET_KEY,
9214 .doit = nl80211_get_key,
9215 .policy = nl80211_policy,
9216 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9217 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9218 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9219 },
9220 {
9221 .cmd = NL80211_CMD_SET_KEY,
9222 .doit = nl80211_set_key,
9223 .policy = nl80211_policy,
9224 .flags = GENL_ADMIN_PERM,
41265714 9225 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9226 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9227 },
9228 {
9229 .cmd = NL80211_CMD_NEW_KEY,
9230 .doit = nl80211_new_key,
9231 .policy = nl80211_policy,
9232 .flags = GENL_ADMIN_PERM,
41265714 9233 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9234 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9235 },
9236 {
9237 .cmd = NL80211_CMD_DEL_KEY,
9238 .doit = nl80211_del_key,
9239 .policy = nl80211_policy,
55682965 9240 .flags = GENL_ADMIN_PERM,
41265714 9241 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9242 NL80211_FLAG_NEED_RTNL,
55682965 9243 },
ed1b6cc7
JB		 9244 {
9245 .cmd = NL80211_CMD_SET_BEACON,
9246 .policy = nl80211_policy,
9247 .flags = GENL_ADMIN_PERM,
8860020e 9248 .doit = nl80211_set_beacon,
2b5f8b0b 9249 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9250 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9251 },
9252 {
8860020e 9253 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9254 .policy = nl80211_policy,
9255 .flags = GENL_ADMIN_PERM,
8860020e 9256 .doit = nl80211_start_ap,
2b5f8b0b 9257 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9258 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9259 },
9260 {
8860020e 9261 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9262 .policy = nl80211_policy,
9263 .flags = GENL_ADMIN_PERM,
8860020e 9264 .doit = nl80211_stop_ap,
2b5f8b0b 9265 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9266 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9267 },
5727ef1b
JB		 9268 {
9269 .cmd = NL80211_CMD_GET_STATION,
9270 .doit = nl80211_get_station,
2ec600d6 9271 .dumpit = nl80211_dump_station,
5727ef1b 9272 .policy = nl80211_policy,
4c476991
JB		 9273 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9274 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9275 },
9276 {
9277 .cmd = NL80211_CMD_SET_STATION,
9278 .doit = nl80211_set_station,
9279 .policy = nl80211_policy,
9280 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9281 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9282 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9283 },
9284 {
9285 .cmd = NL80211_CMD_NEW_STATION,
9286 .doit = nl80211_new_station,
9287 .policy = nl80211_policy,
9288 .flags = GENL_ADMIN_PERM,
41265714 9289 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9290 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9291 },
9292 {
9293 .cmd = NL80211_CMD_DEL_STATION,
9294 .doit = nl80211_del_station,
9295 .policy = nl80211_policy,
2ec600d6 9296 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9297 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9298 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9299 },
9300 {
9301 .cmd = NL80211_CMD_GET_MPATH,
9302 .doit = nl80211_get_mpath,
9303 .dumpit = nl80211_dump_mpath,
9304 .policy = nl80211_policy,
9305 .flags = GENL_ADMIN_PERM,
41265714 9306 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9307 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9308 },
9309 {
9310 .cmd = NL80211_CMD_SET_MPATH,
9311 .doit = nl80211_set_mpath,
9312 .policy = nl80211_policy,
9313 .flags = GENL_ADMIN_PERM,
41265714 9314 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9315 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9316 },
9317 {
9318 .cmd = NL80211_CMD_NEW_MPATH,
9319 .doit = nl80211_new_mpath,
9320 .policy = nl80211_policy,
9321 .flags = GENL_ADMIN_PERM,
41265714 9322 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9323 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9324 },
9325 {
9326 .cmd = NL80211_CMD_DEL_MPATH,
9327 .doit = nl80211_del_mpath,
9328 .policy = nl80211_policy,
9f1ba906 9329 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9330 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9331 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9332 },
9333 {
9334 .cmd = NL80211_CMD_SET_BSS,
9335 .doit = nl80211_set_bss,
9336 .policy = nl80211_policy,
b2e1b302 9337 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9338 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9339 NL80211_FLAG_NEED_RTNL,
b2e1b302 9340 },
f130347c
LR		 9341 {
9342 .cmd = NL80211_CMD_GET_REG,
9343 .doit = nl80211_get_reg,
9344 .policy = nl80211_policy,
5fe231e8 9345 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9346 /* can be retrieved by unprivileged users */
9347 },
b2e1b302
LR		 9348 {
9349 .cmd = NL80211_CMD_SET_REG,
9350 .doit = nl80211_set_reg,
9351 .policy = nl80211_policy,
9352 .flags = GENL_ADMIN_PERM,
5fe231e8 9353 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9354 },
9355 {
9356 .cmd = NL80211_CMD_REQ_SET_REG,
9357 .doit = nl80211_req_set_reg,
9358 .policy = nl80211_policy,
93da9cc1 9359 .flags = GENL_ADMIN_PERM,
9360 },
9361 {
24bdd9f4
JC		 9362 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9363 .doit = nl80211_get_mesh_config,
93da9cc1 9364 .policy = nl80211_policy,
9365 /* can be retrieved by unprivileged users */
2b5f8b0b 9366 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9367 NL80211_FLAG_NEED_RTNL,
93da9cc1 9368 },
9369 {
24bdd9f4
JC		 9370 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9371 .doit = nl80211_update_mesh_config,
93da9cc1 9372 .policy = nl80211_policy,
9aed3cc1 9373 .flags = GENL_ADMIN_PERM,
29cbe68c 9374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9375 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9376 },
2a519311
JB		 9377 {
9378 .cmd = NL80211_CMD_TRIGGER_SCAN,
9379 .doit = nl80211_trigger_scan,
9380 .policy = nl80211_policy,
9381 .flags = GENL_ADMIN_PERM,
fd014284 9382 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9383 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9384 },
9385 {
9386 .cmd = NL80211_CMD_GET_SCAN,
9387 .policy = nl80211_policy,
9388 .dumpit = nl80211_dump_scan,
9389 },
807f8a8c
LC		 9390 {
9391 .cmd = NL80211_CMD_START_SCHED_SCAN,
9392 .doit = nl80211_start_sched_scan,
9393 .policy = nl80211_policy,
9394 .flags = GENL_ADMIN_PERM,
9395 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9396 NL80211_FLAG_NEED_RTNL,
9397 },
9398 {
9399 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9400 .doit = nl80211_stop_sched_scan,
9401 .policy = nl80211_policy,
9402 .flags = GENL_ADMIN_PERM,
9403 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9404 NL80211_FLAG_NEED_RTNL,
9405 },
636a5d36
JM		 9406 {
9407 .cmd = NL80211_CMD_AUTHENTICATE,
9408 .doit = nl80211_authenticate,
9409 .policy = nl80211_policy,
9410 .flags = GENL_ADMIN_PERM,
41265714 9411 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9412 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9413 },
9414 {
9415 .cmd = NL80211_CMD_ASSOCIATE,
9416 .doit = nl80211_associate,
9417 .policy = nl80211_policy,
9418 .flags = GENL_ADMIN_PERM,
41265714 9419 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9420 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9421 },
9422 {
9423 .cmd = NL80211_CMD_DEAUTHENTICATE,
9424 .doit = nl80211_deauthenticate,
9425 .policy = nl80211_policy,
9426 .flags = GENL_ADMIN_PERM,
41265714 9427 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9428 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9429 },
9430 {
9431 .cmd = NL80211_CMD_DISASSOCIATE,
9432 .doit = nl80211_disassociate,
9433 .policy = nl80211_policy,
9434 .flags = GENL_ADMIN_PERM,
41265714 9435 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9436 NL80211_FLAG_NEED_RTNL,
636a5d36 9437 },
04a773ad
JB		 9438 {
9439 .cmd = NL80211_CMD_JOIN_IBSS,
9440 .doit = nl80211_join_ibss,
9441 .policy = nl80211_policy,
9442 .flags = GENL_ADMIN_PERM,
41265714 9443 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9444 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9445 },
9446 {
9447 .cmd = NL80211_CMD_LEAVE_IBSS,
9448 .doit = nl80211_leave_ibss,
9449 .policy = nl80211_policy,
9450 .flags = GENL_ADMIN_PERM,
41265714 9451 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9452 NL80211_FLAG_NEED_RTNL,
04a773ad 9453 },
aff89a9b
JB		 9454#ifdef CONFIG_NL80211_TESTMODE
9455 {
9456 .cmd = NL80211_CMD_TESTMODE,
9457 .doit = nl80211_testmode_do,
71063f0e 9458 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9459 .policy = nl80211_policy,
9460 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9461 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9462 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9463 },
9464#endif
b23aa676
SO		 9465 {
9466 .cmd = NL80211_CMD_CONNECT,
9467 .doit = nl80211_connect,
9468 .policy = nl80211_policy,
9469 .flags = GENL_ADMIN_PERM,
41265714 9470 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9471 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9472 },
9473 {
9474 .cmd = NL80211_CMD_DISCONNECT,
9475 .doit = nl80211_disconnect,
9476 .policy = nl80211_policy,
9477 .flags = GENL_ADMIN_PERM,
41265714 9478 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9479 NL80211_FLAG_NEED_RTNL,
b23aa676 9480 },
463d0183
JB		 9481 {
9482 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9483 .doit = nl80211_wiphy_netns,
9484 .policy = nl80211_policy,
9485 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9486 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9487 NL80211_FLAG_NEED_RTNL,
463d0183 9488 },
61fa713c
HS		 9489 {
9490 .cmd = NL80211_CMD_GET_SURVEY,
9491 .policy = nl80211_policy,
9492 .dumpit = nl80211_dump_survey,
9493 },
67fbb16b
SO		 9494 {
9495 .cmd = NL80211_CMD_SET_PMKSA,
9496 .doit = nl80211_setdel_pmksa,
9497 .policy = nl80211_policy,
9498 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9499 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9500 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9501 },
9502 {
9503 .cmd = NL80211_CMD_DEL_PMKSA,
9504 .doit = nl80211_setdel_pmksa,
9505 .policy = nl80211_policy,
9506 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9507 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9508 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9509 },
9510 {
9511 .cmd = NL80211_CMD_FLUSH_PMKSA,
9512 .doit = nl80211_flush_pmksa,
9513 .policy = nl80211_policy,
9514 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9515 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9516 NL80211_FLAG_NEED_RTNL,
67fbb16b 9517 },
9588bbd5
JM		 9518 {
9519 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9520 .doit = nl80211_remain_on_channel,
9521 .policy = nl80211_policy,
9522 .flags = GENL_ADMIN_PERM,
71bbc994 9523 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9524 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9525 },
9526 {
9527 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9528 .doit = nl80211_cancel_remain_on_channel,
9529 .policy = nl80211_policy,
9530 .flags = GENL_ADMIN_PERM,
71bbc994 9531 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9532 NL80211_FLAG_NEED_RTNL,
9588bbd5 9533 },
13ae75b1
JM		 9534 {
9535 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9536 .doit = nl80211_set_tx_bitrate_mask,
9537 .policy = nl80211_policy,
9538 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9539 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9540 NL80211_FLAG_NEED_RTNL,
13ae75b1 9541 },
026331c4 9542 {
2e161f78
JB		 9543 .cmd = NL80211_CMD_REGISTER_FRAME,
9544 .doit = nl80211_register_mgmt,
026331c4
JM		 9545 .policy = nl80211_policy,
9546 .flags = GENL_ADMIN_PERM,
71bbc994 9547 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9548 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9549 },
9550 {
2e161f78
JB		 9551 .cmd = NL80211_CMD_FRAME,
9552 .doit = nl80211_tx_mgmt,
026331c4 9553 .policy = nl80211_policy,
f7ca38df 9554 .flags = GENL_ADMIN_PERM,
71bbc994 9555 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9556 NL80211_FLAG_NEED_RTNL,
9557 },
9558 {
9559 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9560 .doit = nl80211_tx_mgmt_cancel_wait,
9561 .policy = nl80211_policy,
026331c4 9562 .flags = GENL_ADMIN_PERM,
71bbc994 9563 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9564 NL80211_FLAG_NEED_RTNL,
026331c4 9565 },
ffb9eb3d
KV		 9566 {
9567 .cmd = NL80211_CMD_SET_POWER_SAVE,
9568 .doit = nl80211_set_power_save,
9569 .policy = nl80211_policy,
9570 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9571 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9572 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9573 },
9574 {
9575 .cmd = NL80211_CMD_GET_POWER_SAVE,
9576 .doit = nl80211_get_power_save,
9577 .policy = nl80211_policy,
9578 /* can be retrieved by unprivileged users */
4c476991
JB		 9579 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9580 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9581 },
d6dc1a38
JO		 9582 {
9583 .cmd = NL80211_CMD_SET_CQM,
9584 .doit = nl80211_set_cqm,
9585 .policy = nl80211_policy,
9586 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9587 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9588 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9589 },
f444de05
JB		 9590 {
9591 .cmd = NL80211_CMD_SET_CHANNEL,
9592 .doit = nl80211_set_channel,
9593 .policy = nl80211_policy,
9594 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9595 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9596 NL80211_FLAG_NEED_RTNL,
f444de05 9597 },
e8347eba
BJ		 9598 {
9599 .cmd = NL80211_CMD_SET_WDS_PEER,
9600 .doit = nl80211_set_wds_peer,
9601 .policy = nl80211_policy,
9602 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9603 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9604 NL80211_FLAG_NEED_RTNL,
e8347eba 9605 },
29cbe68c
JB		 9606 {
9607 .cmd = NL80211_CMD_JOIN_MESH,
9608 .doit = nl80211_join_mesh,
9609 .policy = nl80211_policy,
9610 .flags = GENL_ADMIN_PERM,
9611 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9612 NL80211_FLAG_NEED_RTNL,
9613 },
9614 {
9615 .cmd = NL80211_CMD_LEAVE_MESH,
9616 .doit = nl80211_leave_mesh,
9617 .policy = nl80211_policy,
9618 .flags = GENL_ADMIN_PERM,
9619 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9620 NL80211_FLAG_NEED_RTNL,
9621 },
dfb89c56 9622#ifdef CONFIG_PM
ff1b6e69
JB		 9623 {
9624 .cmd = NL80211_CMD_GET_WOWLAN,
9625 .doit = nl80211_get_wowlan,
9626 .policy = nl80211_policy,
9627 /* can be retrieved by unprivileged users */
9628 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9629 NL80211_FLAG_NEED_RTNL,
9630 },
9631 {
9632 .cmd = NL80211_CMD_SET_WOWLAN,
9633 .doit = nl80211_set_wowlan,
9634 .policy = nl80211_policy,
9635 .flags = GENL_ADMIN_PERM,
9636 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9637 NL80211_FLAG_NEED_RTNL,
9638 },
dfb89c56 9639#endif
e5497d76
JB		 9640 {
9641 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9642 .doit = nl80211_set_rekey_data,
9643 .policy = nl80211_policy,
9644 .flags = GENL_ADMIN_PERM,
9645 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9646 NL80211_FLAG_NEED_RTNL,
9647 },
109086ce
AN		 9648 {
9649 .cmd = NL80211_CMD_TDLS_MGMT,
9650 .doit = nl80211_tdls_mgmt,
9651 .policy = nl80211_policy,
9652 .flags = GENL_ADMIN_PERM,
9653 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9654 NL80211_FLAG_NEED_RTNL,
9655 },
9656 {
9657 .cmd = NL80211_CMD_TDLS_OPER,
9658 .doit = nl80211_tdls_oper,
9659 .policy = nl80211_policy,
9660 .flags = GENL_ADMIN_PERM,
9661 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9662 NL80211_FLAG_NEED_RTNL,
9663 },
28946da7
JB		 9664 {
9665 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9666 .doit = nl80211_register_unexpected_frame,
9667 .policy = nl80211_policy,
9668 .flags = GENL_ADMIN_PERM,
9669 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9670 NL80211_FLAG_NEED_RTNL,
9671 },
7f6cf311
JB		 9672 {
9673 .cmd = NL80211_CMD_PROBE_CLIENT,
9674 .doit = nl80211_probe_client,
9675 .policy = nl80211_policy,
9676 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9677 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9678 NL80211_FLAG_NEED_RTNL,
9679 },
5e760230
JB		 9680 {
9681 .cmd = NL80211_CMD_REGISTER_BEACONS,
9682 .doit = nl80211_register_beacons,
9683 .policy = nl80211_policy,
9684 .flags = GENL_ADMIN_PERM,
9685 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9686 NL80211_FLAG_NEED_RTNL,
9687 },
1d9d9213
SW		 9688 {
9689 .cmd = NL80211_CMD_SET_NOACK_MAP,
9690 .doit = nl80211_set_noack_map,
9691 .policy = nl80211_policy,
9692 .flags = GENL_ADMIN_PERM,
9693 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9694 NL80211_FLAG_NEED_RTNL,
9695 },
98104fde
JB		 9696 {
9697 .cmd = NL80211_CMD_START_P2P_DEVICE,
9698 .doit = nl80211_start_p2p_device,
9699 .policy = nl80211_policy,
9700 .flags = GENL_ADMIN_PERM,
9701 .internal_flags = NL80211_FLAG_NEED_WDEV |
9702 NL80211_FLAG_NEED_RTNL,
9703 },
9704 {
9705 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9706 .doit = nl80211_stop_p2p_device,
9707 .policy = nl80211_policy,
9708 .flags = GENL_ADMIN_PERM,
9709 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9710 NL80211_FLAG_NEED_RTNL,
9711 },
f4e583c8
AQ		 9712 {
9713 .cmd = NL80211_CMD_SET_MCAST_RATE,
9714 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 9715 .policy = nl80211_policy,
9716 .flags = GENL_ADMIN_PERM,
9717 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9718 NL80211_FLAG_NEED_RTNL,
9719 },
9720 {
9721 .cmd = NL80211_CMD_SET_MAC_ACL,
9722 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 9723 .policy = nl80211_policy,
9724 .flags = GENL_ADMIN_PERM,
9725 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9726 NL80211_FLAG_NEED_RTNL,
9727 },
04f39047
SW		 9728 {
9729 .cmd = NL80211_CMD_RADAR_DETECT,
9730 .doit = nl80211_start_radar_detection,
9731 .policy = nl80211_policy,
9732 .flags = GENL_ADMIN_PERM,
9733 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9734 NL80211_FLAG_NEED_RTNL,
9735 },
3713b4e3
JB		 9736 {
9737 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9738 .doit = nl80211_get_protocol_features,
9739 .policy = nl80211_policy,
9740 },
355199e0
JM		 9741 {
9742 .cmd = NL80211_CMD_UPDATE_FT_IES,
9743 .doit = nl80211_update_ft_ies,
9744 .policy = nl80211_policy,
9745 .flags = GENL_ADMIN_PERM,
9746 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9747 NL80211_FLAG_NEED_RTNL,
9748 },
5de17984
AS		 9749 {
9750 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9751 .doit = nl80211_crit_protocol_start,
9752 .policy = nl80211_policy,
9753 .flags = GENL_ADMIN_PERM,
9754 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9755 NL80211_FLAG_NEED_RTNL,
9756 },
9757 {
9758 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9759 .doit = nl80211_crit_protocol_stop,
9760 .policy = nl80211_policy,
9761 .flags = GENL_ADMIN_PERM,
9762 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9763 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 9764 },
9765 {
9766 .cmd = NL80211_CMD_GET_COALESCE,
9767 .doit = nl80211_get_coalesce,
9768 .policy = nl80211_policy,
9769 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9770 NL80211_FLAG_NEED_RTNL,
9771 },
9772 {
9773 .cmd = NL80211_CMD_SET_COALESCE,
9774 .doit = nl80211_set_coalesce,
9775 .policy = nl80211_policy,
9776 .flags = GENL_ADMIN_PERM,
9777 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9778 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 9779 },
9780 {
9781 .cmd = NL80211_CMD_CHANNEL_SWITCH,
9782 .doit = nl80211_channel_switch,
9783 .policy = nl80211_policy,
9784 .flags = GENL_ADMIN_PERM,
9785 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9786 NL80211_FLAG_NEED_RTNL,
9787 },
ad7e718c
JB		 9788 {
9789 .cmd = NL80211_CMD_VENDOR,
9790 .doit = nl80211_vendor_cmd,
9791 .policy = nl80211_policy,
9792 .flags = GENL_ADMIN_PERM,
9793 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9794 NL80211_FLAG_NEED_RTNL,
9795 },
55682965 9796};
9588bbd5 9797
55682965
JB		 9798/* notification functions */
9799
9800void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9801{
9802 struct sk_buff *msg;
86e8cf98 9803 struct nl80211_dump_wiphy_state state = {};
55682965 9804
fd2120ca 9805 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 9806 if (!msg)
9807 return;
9808
86e8cf98 9809 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 9810 nlmsg_free(msg);
9811 return;
9812 }
9813
68eb5503 9814 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9815 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 9816}
9817
362a415d
JB		 9818static int nl80211_add_scan_req(struct sk_buff *msg,
9819 struct cfg80211_registered_device *rdev)
9820{
9821 struct cfg80211_scan_request *req = rdev->scan_req;
9822 struct nlattr *nest;
9823 int i;
9824
9825 if (WARN_ON(!req))
9826 return 0;
9827
9828 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9829 if (!nest)
9830 goto nla_put_failure;
9360ffd1
DM		 9831 for (i = 0; i < req->n_ssids; i++) {
9832 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9833 goto nla_put_failure;
9834 }
362a415d
JB		 9835 nla_nest_end(msg, nest);
9836
9837 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9838 if (!nest)
9839 goto nla_put_failure;
9360ffd1
DM		 9840 for (i = 0; i < req->n_channels; i++) {
9841 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9842 goto nla_put_failure;
9843 }
362a415d
JB		 9844 nla_nest_end(msg, nest);
9845
9360ffd1
DM		 9846 if (req->ie &&
9847 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9848 goto nla_put_failure;
362a415d 9849
ae917c9f
JB		 9850 if (req->flags &&
9851 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
9852 goto nla_put_failure;
ed473771 9853
362a415d
JB		 9854 return 0;
9855 nla_put_failure:
9856 return -ENOBUFS;
9857}
9858
a538e2d5
JB		 9859static int nl80211_send_scan_msg(struct sk_buff *msg,
9860 struct cfg80211_registered_device *rdev,
fd014284 9861 struct wireless_dev *wdev,
15e47304 9862 u32 portid, u32 seq, int flags,
a538e2d5 9863 u32 cmd)
2a519311
JB		 9864{
9865 void *hdr;
9866
15e47304 9867 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9868 if (!hdr)
9869 return -1;
9870
9360ffd1 9871 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9872 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9873 wdev->netdev->ifindex)) ||
9874 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9875 goto nla_put_failure;
2a519311 9876
362a415d
JB		 9877 /* ignore errors and send incomplete event anyway */
9878 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9879
9880 return genlmsg_end(msg, hdr);
9881
9882 nla_put_failure:
9883 genlmsg_cancel(msg, hdr);
9884 return -EMSGSIZE;
9885}
9886
807f8a8c
LC		 9887static int
9888nl80211_send_sched_scan_msg(struct sk_buff *msg,
9889 struct cfg80211_registered_device *rdev,
9890 struct net_device *netdev,
15e47304 9891 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9892{
9893 void *hdr;
9894
15e47304 9895 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9896 if (!hdr)
9897 return -1;
9898
9360ffd1
DM		 9899 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9900 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9901 goto nla_put_failure;
807f8a8c
LC		 9902
9903 return genlmsg_end(msg, hdr);
9904
9905 nla_put_failure:
9906 genlmsg_cancel(msg, hdr);
9907 return -EMSGSIZE;
9908}
9909
a538e2d5 9910void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9911 struct wireless_dev *wdev)
a538e2d5
JB		 9912{
9913 struct sk_buff *msg;
9914
58050fce 9915 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9916 if (!msg)
9917 return;
9918
fd014284 9919 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9920 NL80211_CMD_TRIGGER_SCAN) < 0) {
9921 nlmsg_free(msg);
9922 return;
9923 }
9924
68eb5503 9925 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9926 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 9927}
9928
2a519311 9929void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9930 struct wireless_dev *wdev)
2a519311
JB		 9931{
9932 struct sk_buff *msg;
9933
fd2120ca 9934 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9935 if (!msg)
9936 return;
9937
fd014284 9938 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9939 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9940 nlmsg_free(msg);
9941 return;
9942 }
9943
68eb5503 9944 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9945 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 9946}
9947
9948void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9949 struct wireless_dev *wdev)
2a519311
JB		 9950{
9951 struct sk_buff *msg;
9952
fd2120ca 9953 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9954 if (!msg)
9955 return;
9956
fd014284 9957 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9958 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9959 nlmsg_free(msg);
9960 return;
9961 }
9962
68eb5503 9963 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9964 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 9965}
9966
807f8a8c
LC		 9967void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9968 struct net_device *netdev)
9969{
9970 struct sk_buff *msg;
9971
9972 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9973 if (!msg)
9974 return;
9975
9976 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9977 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9978 nlmsg_free(msg);
9979 return;
9980 }
9981
68eb5503 9982 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9983 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 9984}
9985
9986void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9987 struct net_device *netdev, u32 cmd)
9988{
9989 struct sk_buff *msg;
9990
58050fce 9991 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9992 if (!msg)
9993 return;
9994
9995 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9996 nlmsg_free(msg);
9997 return;
9998 }
9999
68eb5503 10000 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10001 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10002}
10003
73d54c9e
LR		 10004/*
10005 * This can happen on global regulatory changes or device specific settings
10006 * based on custom world regulatory domains.
10007 */
10008void nl80211_send_reg_change_event(struct regulatory_request *request)
10009{
10010 struct sk_buff *msg;
10011 void *hdr;
10012
fd2120ca 10013 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10014 if (!msg)
10015 return;
10016
10017 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10018 if (!hdr) {
10019 nlmsg_free(msg);
10020 return;
10021 }
10022
10023 /* Userspace can always count this one always being set */
9360ffd1
DM		 10024 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10025 goto nla_put_failure;
10026
10027 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10028 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10029 NL80211_REGDOM_TYPE_WORLD))
10030 goto nla_put_failure;
10031 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10032 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10033 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10034 goto nla_put_failure;
10035 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10036 request->intersect) {
10037 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10038 NL80211_REGDOM_TYPE_INTERSECTION))
10039 goto nla_put_failure;
10040 } else {
10041 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10042 NL80211_REGDOM_TYPE_COUNTRY) ||
10043 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10044 request->alpha2))
10045 goto nla_put_failure;
10046 }
10047
f4173766 10048 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10049 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10050 goto nla_put_failure;
73d54c9e 10051
3b7b72ee 10052 genlmsg_end(msg, hdr);
73d54c9e 10053
bc43b28c 10054 rcu_read_lock();
68eb5503 10055 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10056 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10057 rcu_read_unlock();
73d54c9e
LR		 10058
10059 return;
10060
10061nla_put_failure:
10062 genlmsg_cancel(msg, hdr);
10063 nlmsg_free(msg);
10064}
10065
6039f6d2
JM		 10066static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10067 struct net_device *netdev,
10068 const u8 *buf, size_t len,
e6d6e342 10069 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10070{
10071 struct sk_buff *msg;
10072 void *hdr;
10073
e6d6e342 10074 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10075 if (!msg)
10076 return;
10077
10078 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10079 if (!hdr) {
10080 nlmsg_free(msg);
10081 return;
10082 }
10083
9360ffd1
DM		 10084 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10085 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10086 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10087 goto nla_put_failure;
6039f6d2 10088
3b7b72ee 10089 genlmsg_end(msg, hdr);
6039f6d2 10090
68eb5503 10091 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10092 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10093 return;
10094
10095 nla_put_failure:
10096 genlmsg_cancel(msg, hdr);
10097 nlmsg_free(msg);
10098}
10099
10100void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10101 struct net_device *netdev, const u8 *buf,
10102 size_t len, gfp_t gfp)
6039f6d2
JM		 10103{
10104 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10105 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10106}
10107
10108void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10109 struct net_device *netdev, const u8 *buf,
e6d6e342 10110 size_t len, gfp_t gfp)
6039f6d2 10111{
e6d6e342
JB		 10112 nl80211_send_mlme_event(rdev, netdev, buf, len,
10113 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10114}
10115
53b46b84 10116void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10117 struct net_device *netdev, const u8 *buf,
10118 size_t len, gfp_t gfp)
6039f6d2
JM		 10119{
10120 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10121 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10122}
10123
53b46b84
JM		 10124void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10125 struct net_device *netdev, const u8 *buf,
e6d6e342 10126 size_t len, gfp_t gfp)
6039f6d2
JM		 10127{
10128 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10129 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10130}
10131
6ff57cf8
JB		 10132void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10133 size_t len)
cf4e594e 10134{
947add36
JB		 10135 struct wireless_dev *wdev = dev->ieee80211_ptr;
10136 struct wiphy *wiphy = wdev->wiphy;
10137 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6ff57cf8
JB		 10138 const struct ieee80211_mgmt *mgmt = (void *)buf;
10139 u32 cmd;
947add36 10140
6ff57cf8
JB		 10141 if (WARN_ON(len < 2))
10142 return;
cf4e594e 10143
6ff57cf8
JB		 10144 if (ieee80211_is_deauth(mgmt->frame_control))
10145 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10146 else
10147 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10148
6ff57cf8
JB		 10149 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10150 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10151}
6ff57cf8 10152EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10153
1b06bb40
LR		 10154static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10155 struct net_device *netdev, int cmd,
e6d6e342 10156 const u8 *addr, gfp_t gfp)
1965c853
JM		 10157{
10158 struct sk_buff *msg;
10159 void *hdr;
10160
e6d6e342 10161 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10162 if (!msg)
10163 return;
10164
10165 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10166 if (!hdr) {
10167 nlmsg_free(msg);
10168 return;
10169 }
10170
9360ffd1
DM		 10171 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10172 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10173 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10174 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10175 goto nla_put_failure;
1965c853 10176
3b7b72ee 10177 genlmsg_end(msg, hdr);
1965c853 10178
68eb5503 10179 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10180 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10181 return;
10182
10183 nla_put_failure:
10184 genlmsg_cancel(msg, hdr);
10185 nlmsg_free(msg);
10186}
10187
10188void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10189 struct net_device *netdev, const u8 *addr,
10190 gfp_t gfp)
1965c853
JM		 10191{
10192 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10193 addr, gfp);
1965c853
JM		 10194}
10195
10196void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10197 struct net_device *netdev, const u8 *addr,
10198 gfp_t gfp)
1965c853 10199{
e6d6e342
JB		 10200 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10201 addr, gfp);
1965c853
JM		 10202}
10203
b23aa676
SO		 10204void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10205 struct net_device *netdev, const u8 *bssid,
10206 const u8 *req_ie, size_t req_ie_len,
10207 const u8 *resp_ie, size_t resp_ie_len,
10208 u16 status, gfp_t gfp)
10209{
10210 struct sk_buff *msg;
10211 void *hdr;
10212
58050fce 10213 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10214 if (!msg)
10215 return;
10216
10217 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10218 if (!hdr) {
10219 nlmsg_free(msg);
10220 return;
10221 }
10222
9360ffd1
DM		 10223 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10224 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10225 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10226 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10227 (req_ie &&
10228 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10229 (resp_ie &&
10230 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10231 goto nla_put_failure;
b23aa676 10232
3b7b72ee 10233 genlmsg_end(msg, hdr);
b23aa676 10234
68eb5503 10235 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10236 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10237 return;
10238
10239 nla_put_failure:
10240 genlmsg_cancel(msg, hdr);
10241 nlmsg_free(msg);
10242
10243}
10244
10245void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10246 struct net_device *netdev, const u8 *bssid,
10247 const u8 *req_ie, size_t req_ie_len,
10248 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10249{
10250 struct sk_buff *msg;
10251 void *hdr;
10252
58050fce 10253 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10254 if (!msg)
10255 return;
10256
10257 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10258 if (!hdr) {
10259 nlmsg_free(msg);
10260 return;
10261 }
10262
9360ffd1
DM		 10263 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10264 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10265 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10266 (req_ie &&
10267 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10268 (resp_ie &&
10269 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10270 goto nla_put_failure;
b23aa676 10271
3b7b72ee 10272 genlmsg_end(msg, hdr);
b23aa676 10273
68eb5503 10274 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10275 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10276 return;
10277
10278 nla_put_failure:
10279 genlmsg_cancel(msg, hdr);
10280 nlmsg_free(msg);
10281
10282}
10283
10284void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10285 struct net_device *netdev, u16 reason,
667503dd 10286 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10287{
10288 struct sk_buff *msg;
10289 void *hdr;
10290
58050fce 10291 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10292 if (!msg)
10293 return;
10294
10295 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10296 if (!hdr) {
10297 nlmsg_free(msg);
10298 return;
10299 }
10300
9360ffd1
DM		 10301 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10302 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10303 (from_ap && reason &&
10304 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10305 (from_ap &&
10306 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10307 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10308 goto nla_put_failure;
b23aa676 10309
3b7b72ee 10310 genlmsg_end(msg, hdr);
b23aa676 10311
68eb5503 10312 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10313 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10314 return;
10315
10316 nla_put_failure:
10317 genlmsg_cancel(msg, hdr);
10318 nlmsg_free(msg);
10319
10320}
10321
04a773ad
JB		 10322void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10323 struct net_device *netdev, const u8 *bssid,
10324 gfp_t gfp)
10325{
10326 struct sk_buff *msg;
10327 void *hdr;
10328
fd2120ca 10329 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10330 if (!msg)
10331 return;
10332
10333 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10334 if (!hdr) {
10335 nlmsg_free(msg);
10336 return;
10337 }
10338
9360ffd1
DM		 10339 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10340 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10341 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10342 goto nla_put_failure;
04a773ad 10343
3b7b72ee 10344 genlmsg_end(msg, hdr);
04a773ad 10345
68eb5503 10346 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10347 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10348 return;
10349
10350 nla_put_failure:
10351 genlmsg_cancel(msg, hdr);
10352 nlmsg_free(msg);
10353}
10354
947add36
JB		 10355void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10356 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10357{
947add36
JB		 10358 struct wireless_dev *wdev = dev->ieee80211_ptr;
10359 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 10360 struct sk_buff *msg;
10361 void *hdr;
10362
947add36
JB		 10363 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10364 return;
10365
10366 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10367
c93b5e71
JC		 10368 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10369 if (!msg)
10370 return;
10371
10372 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10373 if (!hdr) {
10374 nlmsg_free(msg);
10375 return;
10376 }
10377
9360ffd1 10378 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10379 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10380 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10381 (ie_len && ie &&
10382 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10383 goto nla_put_failure;
c93b5e71 10384
3b7b72ee 10385 genlmsg_end(msg, hdr);
c93b5e71 10386
68eb5503 10387 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10388 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10389 return;
10390
10391 nla_put_failure:
10392 genlmsg_cancel(msg, hdr);
10393 nlmsg_free(msg);
10394}
947add36 10395EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10396
a3b8b056
JM		 10397void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10398 struct net_device *netdev, const u8 *addr,
10399 enum nl80211_key_type key_type, int key_id,
e6d6e342 10400 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10401{
10402 struct sk_buff *msg;
10403 void *hdr;
10404
e6d6e342 10405 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10406 if (!msg)
10407 return;
10408
10409 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10410 if (!hdr) {
10411 nlmsg_free(msg);
10412 return;
10413 }
10414
9360ffd1
DM		 10415 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10416 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10417 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10418 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10419 (key_id != -1 &&
10420 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10421 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10422 goto nla_put_failure;
a3b8b056 10423
3b7b72ee 10424 genlmsg_end(msg, hdr);
a3b8b056 10425
68eb5503 10426 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10427 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10428 return;
10429
10430 nla_put_failure:
10431 genlmsg_cancel(msg, hdr);
10432 nlmsg_free(msg);
10433}
10434
6bad8766
LR		 10435void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10436 struct ieee80211_channel *channel_before,
10437 struct ieee80211_channel *channel_after)
10438{
10439 struct sk_buff *msg;
10440 void *hdr;
10441 struct nlattr *nl_freq;
10442
fd2120ca 10443 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10444 if (!msg)
10445 return;
10446
10447 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10448 if (!hdr) {
10449 nlmsg_free(msg);
10450 return;
10451 }
10452
10453 /*
10454 * Since we are applying the beacon hint to a wiphy we know its
10455 * wiphy_idx is valid
10456 */
9360ffd1
DM		 10457 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10458 goto nla_put_failure;
6bad8766
LR		 10459
10460 /* Before */
10461 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10462 if (!nl_freq)
10463 goto nla_put_failure;
cdc89b97 10464 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10465 goto nla_put_failure;
10466 nla_nest_end(msg, nl_freq);
10467
10468 /* After */
10469 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10470 if (!nl_freq)
10471 goto nla_put_failure;
cdc89b97 10472 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10473 goto nla_put_failure;
10474 nla_nest_end(msg, nl_freq);
10475
3b7b72ee 10476 genlmsg_end(msg, hdr);
6bad8766 10477
463d0183 10478 rcu_read_lock();
68eb5503 10479 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10480 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10481 rcu_read_unlock();
6bad8766
LR		 10482
10483 return;
10484
10485nla_put_failure:
10486 genlmsg_cancel(msg, hdr);
10487 nlmsg_free(msg);
10488}
10489
9588bbd5
JM		 10490static void nl80211_send_remain_on_chan_event(
10491 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10492 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10493 struct ieee80211_channel *chan,
9588bbd5
JM		 10494 unsigned int duration, gfp_t gfp)
10495{
10496 struct sk_buff *msg;
10497 void *hdr;
10498
10499 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10500 if (!msg)
10501 return;
10502
10503 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10504 if (!hdr) {
10505 nlmsg_free(msg);
10506 return;
10507 }
10508
9360ffd1 10509 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10510 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10511 wdev->netdev->ifindex)) ||
00f53350 10512 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10513 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10514 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10515 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10516 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10517 goto nla_put_failure;
9588bbd5 10518
9360ffd1
DM		 10519 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10520 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10521 goto nla_put_failure;
9588bbd5 10522
3b7b72ee 10523 genlmsg_end(msg, hdr);
9588bbd5 10524
68eb5503 10525 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10526 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10527 return;
10528
10529 nla_put_failure:
10530 genlmsg_cancel(msg, hdr);
10531 nlmsg_free(msg);
10532}
10533
947add36
JB		 10534void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10535 struct ieee80211_channel *chan,
10536 unsigned int duration, gfp_t gfp)
9588bbd5 10537{
947add36
JB		 10538 struct wiphy *wiphy = wdev->wiphy;
10539 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10540
10541 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10542 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10543 rdev, wdev, cookie, chan,
42d97a59 10544 duration, gfp);
9588bbd5 10545}
947add36 10546EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10547
947add36
JB		 10548void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10549 struct ieee80211_channel *chan,
10550 gfp_t gfp)
9588bbd5 10551{
947add36
JB		 10552 struct wiphy *wiphy = wdev->wiphy;
10553 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10554
10555 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10556 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10557 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10558}
947add36 10559EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10560
947add36
JB		 10561void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10562 struct station_info *sinfo, gfp_t gfp)
98b62183 10563{
947add36
JB		 10564 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10565 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 10566 struct sk_buff *msg;
10567
947add36
JB		 10568 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10569
58050fce 10570 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10571 if (!msg)
10572 return;
10573
66266b3a
JL		 10574 if (nl80211_send_station(msg, 0, 0, 0,
10575 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10576 nlmsg_free(msg);
10577 return;
10578 }
10579
68eb5503 10580 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10581 NL80211_MCGRP_MLME, gfp);
98b62183 10582}
947add36 10583EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10584
947add36 10585void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10586{
947add36
JB		 10587 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10588 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 10589 struct sk_buff *msg;
10590 void *hdr;
10591
947add36
JB		 10592 trace_cfg80211_del_sta(dev, mac_addr);
10593
58050fce 10594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10595 if (!msg)
10596 return;
10597
10598 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10599 if (!hdr) {
10600 nlmsg_free(msg);
10601 return;
10602 }
10603
9360ffd1
DM		 10604 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10605 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10606 goto nla_put_failure;
ec15e68b 10607
3b7b72ee 10608 genlmsg_end(msg, hdr);
ec15e68b 10609
68eb5503 10610 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10611 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10612 return;
10613
10614 nla_put_failure:
10615 genlmsg_cancel(msg, hdr);
10616 nlmsg_free(msg);
10617}
947add36 10618EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10619
947add36
JB		 10620void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10621 enum nl80211_connect_failed_reason reason,
10622 gfp_t gfp)
ed44a951 10623{
947add36
JB		 10624 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10625 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 10626 struct sk_buff *msg;
10627 void *hdr;
10628
10629 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10630 if (!msg)
10631 return;
10632
10633 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10634 if (!hdr) {
10635 nlmsg_free(msg);
10636 return;
10637 }
10638
10639 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10640 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10641 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10642 goto nla_put_failure;
10643
10644 genlmsg_end(msg, hdr);
10645
68eb5503 10646 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10647 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10648 return;
10649
10650 nla_put_failure:
10651 genlmsg_cancel(msg, hdr);
10652 nlmsg_free(msg);
10653}
947add36 10654EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10655
b92ab5d8
JB		 10656static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10657 const u8 *addr, gfp_t gfp)
28946da7
JB		 10658{
10659 struct wireless_dev *wdev = dev->ieee80211_ptr;
10660 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10661 struct sk_buff *msg;
10662 void *hdr;
15e47304 10663 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10664
15e47304 10665 if (!nlportid)
28946da7
JB		 10666 return false;
10667
10668 msg = nlmsg_new(100, gfp);
10669 if (!msg)
10670 return true;
10671
b92ab5d8 10672 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10673 if (!hdr) {
10674 nlmsg_free(msg);
10675 return true;
10676 }
10677
9360ffd1
DM		 10678 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10679 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10680 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10681 goto nla_put_failure;
28946da7 10682
9c90a9f6 10683 genlmsg_end(msg, hdr);
15e47304 10684 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10685 return true;
10686
10687 nla_put_failure:
10688 genlmsg_cancel(msg, hdr);
10689 nlmsg_free(msg);
10690 return true;
10691}
10692
947add36
JB		 10693bool cfg80211_rx_spurious_frame(struct net_device *dev,
10694 const u8 *addr, gfp_t gfp)
b92ab5d8 10695{
947add36
JB		 10696 struct wireless_dev *wdev = dev->ieee80211_ptr;
10697 bool ret;
10698
10699 trace_cfg80211_rx_spurious_frame(dev, addr);
10700
10701 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10702 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10703 trace_cfg80211_return_bool(false);
10704 return false;
10705 }
10706 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10707 addr, gfp);
10708 trace_cfg80211_return_bool(ret);
10709 return ret;
b92ab5d8 10710}
947add36 10711EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10712
947add36
JB		 10713bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10714 const u8 *addr, gfp_t gfp)
b92ab5d8 10715{
947add36
JB		 10716 struct wireless_dev *wdev = dev->ieee80211_ptr;
10717 bool ret;
10718
10719 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10720
10721 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10722 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10723 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10724 trace_cfg80211_return_bool(false);
10725 return false;
10726 }
10727 ret = __nl80211_unexpected_frame(dev,
10728 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10729 addr, gfp);
10730 trace_cfg80211_return_bool(ret);
10731 return ret;
b92ab5d8 10732}
947add36 10733EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 10734
2e161f78 10735int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 10736 struct wireless_dev *wdev, u32 nlportid,
804483e9 10737 int freq, int sig_dbm,
19504cf5 10738 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 10739{
71bbc994 10740 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10741 struct sk_buff *msg;
10742 void *hdr;
026331c4
JM		 10743
10744 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10745 if (!msg)
10746 return -ENOMEM;
10747
2e161f78 10748 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 10749 if (!hdr) {
10750 nlmsg_free(msg);
10751 return -ENOMEM;
10752 }
10753
9360ffd1 10754 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10755 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10756 netdev->ifindex)) ||
a838490b 10757 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10758 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10759 (sig_dbm &&
10760 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 10761 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10762 (flags &&
10763 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 10764 goto nla_put_failure;
026331c4 10765
3b7b72ee 10766 genlmsg_end(msg, hdr);
026331c4 10767
15e47304 10768 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 10769
10770 nla_put_failure:
10771 genlmsg_cancel(msg, hdr);
10772 nlmsg_free(msg);
10773 return -ENOBUFS;
10774}
10775
947add36
JB		 10776void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10777 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 10778{
947add36
JB		 10779 struct wiphy *wiphy = wdev->wiphy;
10780 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 10781 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10782 struct sk_buff *msg;
10783 void *hdr;
10784
947add36
JB		 10785 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10786
026331c4
JM		 10787 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10788 if (!msg)
10789 return;
10790
2e161f78 10791 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 10792 if (!hdr) {
10793 nlmsg_free(msg);
10794 return;
10795 }
10796
9360ffd1 10797 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10798 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10799 netdev->ifindex)) ||
a838490b 10800 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10801 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10802 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10803 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10804 goto nla_put_failure;
026331c4 10805
3b7b72ee 10806 genlmsg_end(msg, hdr);
026331c4 10807
68eb5503 10808 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10809 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 10810 return;
10811
10812 nla_put_failure:
10813 genlmsg_cancel(msg, hdr);
10814 nlmsg_free(msg);
10815}
947add36 10816EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 10817
947add36
JB		 10818void cfg80211_cqm_rssi_notify(struct net_device *dev,
10819 enum nl80211_cqm_rssi_threshold_event rssi_event,
10820 gfp_t gfp)
d6dc1a38 10821{
947add36
JB		 10822 struct wireless_dev *wdev = dev->ieee80211_ptr;
10823 struct wiphy *wiphy = wdev->wiphy;
10824 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 10825 struct sk_buff *msg;
10826 struct nlattr *pinfoattr;
10827 void *hdr;
10828
947add36
JB		 10829 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10830
58050fce 10831 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 10832 if (!msg)
10833 return;
10834
10835 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10836 if (!hdr) {
10837 nlmsg_free(msg);
10838 return;
10839 }
10840
9360ffd1 10841 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10842 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10843 goto nla_put_failure;
d6dc1a38
JO		 10844
10845 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10846 if (!pinfoattr)
10847 goto nla_put_failure;
10848
9360ffd1
DM		 10849 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10850 rssi_event))
10851 goto nla_put_failure;
d6dc1a38
JO		 10852
10853 nla_nest_end(msg, pinfoattr);
10854
3b7b72ee 10855 genlmsg_end(msg, hdr);
d6dc1a38 10856
68eb5503 10857 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10858 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 10859 return;
10860
10861 nla_put_failure:
10862 genlmsg_cancel(msg, hdr);
10863 nlmsg_free(msg);
10864}
947add36 10865EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10866
947add36
JB		 10867static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10868 struct net_device *netdev, const u8 *bssid,
10869 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10870{
10871 struct sk_buff *msg;
10872 struct nlattr *rekey_attr;
10873 void *hdr;
10874
58050fce 10875 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10876 if (!msg)
10877 return;
10878
10879 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10880 if (!hdr) {
10881 nlmsg_free(msg);
10882 return;
10883 }
10884
9360ffd1
DM		 10885 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10886 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10887 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10888 goto nla_put_failure;
e5497d76
JB		 10889
10890 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10891 if (!rekey_attr)
10892 goto nla_put_failure;
10893
9360ffd1
DM		 10894 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10895 NL80211_REPLAY_CTR_LEN, replay_ctr))
10896 goto nla_put_failure;
e5497d76
JB		 10897
10898 nla_nest_end(msg, rekey_attr);
10899
3b7b72ee 10900 genlmsg_end(msg, hdr);
e5497d76 10901
68eb5503 10902 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10903 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 10904 return;
10905
10906 nla_put_failure:
10907 genlmsg_cancel(msg, hdr);
10908 nlmsg_free(msg);
10909}
10910
947add36
JB		 10911void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10912 const u8 *replay_ctr, gfp_t gfp)
10913{
10914 struct wireless_dev *wdev = dev->ieee80211_ptr;
10915 struct wiphy *wiphy = wdev->wiphy;
10916 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10917
10918 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10919 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10920}
10921EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10922
10923static void
10924nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10925 struct net_device *netdev, int index,
10926 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10927{
10928 struct sk_buff *msg;
10929 struct nlattr *attr;
10930 void *hdr;
10931
58050fce 10932 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10933 if (!msg)
10934 return;
10935
10936 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10937 if (!hdr) {
10938 nlmsg_free(msg);
10939 return;
10940 }
10941
9360ffd1
DM		 10942 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10943 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10944 goto nla_put_failure;
c9df56b4
JM		 10945
10946 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10947 if (!attr)
10948 goto nla_put_failure;
10949
9360ffd1
DM		 10950 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10951 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10952 (preauth &&
10953 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10954 goto nla_put_failure;
c9df56b4
JM		 10955
10956 nla_nest_end(msg, attr);
10957
3b7b72ee 10958 genlmsg_end(msg, hdr);
c9df56b4 10959
68eb5503 10960 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10961 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 10962 return;
10963
10964 nla_put_failure:
10965 genlmsg_cancel(msg, hdr);
10966 nlmsg_free(msg);
10967}
10968
947add36
JB		 10969void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10970 const u8 *bssid, bool preauth, gfp_t gfp)
10971{
10972 struct wireless_dev *wdev = dev->ieee80211_ptr;
10973 struct wiphy *wiphy = wdev->wiphy;
10974 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10975
10976 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10977 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10978}
10979EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10980
10981static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10982 struct net_device *netdev,
10983 struct cfg80211_chan_def *chandef,
10984 gfp_t gfp)
5314526b
TP		 10985{
10986 struct sk_buff *msg;
10987 void *hdr;
10988
58050fce 10989 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10990 if (!msg)
10991 return;
10992
10993 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10994 if (!hdr) {
10995 nlmsg_free(msg);
10996 return;
10997 }
10998
683b6d3b
JB		 10999 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11000 goto nla_put_failure;
11001
11002 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11003 goto nla_put_failure;
5314526b
TP		 11004
11005 genlmsg_end(msg, hdr);
11006
68eb5503 11007 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11008 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11009 return;
11010
11011 nla_put_failure:
11012 genlmsg_cancel(msg, hdr);
11013 nlmsg_free(msg);
11014}
11015
947add36
JB		 11016void cfg80211_ch_switch_notify(struct net_device *dev,
11017 struct cfg80211_chan_def *chandef)
84f10708 11018{
947add36
JB		 11019 struct wireless_dev *wdev = dev->ieee80211_ptr;
11020 struct wiphy *wiphy = wdev->wiphy;
11021 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11022
e487eaeb 11023 ASSERT_WDEV_LOCK(wdev);
947add36 11024
e487eaeb 11025 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11026
11027 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11028 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11029 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11030 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11031 return;
947add36
JB		 11032
11033 wdev->channel = chandef->chan;
11034 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11035}
11036EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11037
11038void cfg80211_cqm_txe_notify(struct net_device *dev,
11039 const u8 *peer, u32 num_packets,
11040 u32 rate, u32 intvl, gfp_t gfp)
11041{
11042 struct wireless_dev *wdev = dev->ieee80211_ptr;
11043 struct wiphy *wiphy = wdev->wiphy;
11044 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 11045 struct sk_buff *msg;
11046 struct nlattr *pinfoattr;
11047 void *hdr;
11048
11049 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11050 if (!msg)
11051 return;
11052
11053 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11054 if (!hdr) {
11055 nlmsg_free(msg);
11056 return;
11057 }
11058
11059 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11060 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11061 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11062 goto nla_put_failure;
11063
11064 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11065 if (!pinfoattr)
11066 goto nla_put_failure;
11067
11068 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11069 goto nla_put_failure;
11070
11071 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11072 goto nla_put_failure;
11073
11074 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11075 goto nla_put_failure;
11076
11077 nla_nest_end(msg, pinfoattr);
11078
11079 genlmsg_end(msg, hdr);
11080
68eb5503 11081 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11082 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11083 return;
11084
11085 nla_put_failure:
11086 genlmsg_cancel(msg, hdr);
11087 nlmsg_free(msg);
11088}
947add36 11089EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11090
04f39047
SW		 11091void
11092nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11093 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11094 enum nl80211_radar_event event,
11095 struct net_device *netdev, gfp_t gfp)
11096{
11097 struct sk_buff *msg;
11098 void *hdr;
11099
11100 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11101 if (!msg)
11102 return;
11103
11104 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11105 if (!hdr) {
11106 nlmsg_free(msg);
11107 return;
11108 }
11109
11110 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11111 goto nla_put_failure;
11112
11113 /* NOP and radar events don't need a netdev parameter */
11114 if (netdev) {
11115 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11116
11117 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11118 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11119 goto nla_put_failure;
11120 }
11121
11122 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11123 goto nla_put_failure;
11124
11125 if (nl80211_send_chandef(msg, chandef))
11126 goto nla_put_failure;
11127
9c90a9f6 11128 genlmsg_end(msg, hdr);
04f39047 11129
68eb5503 11130 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11131 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11132 return;
11133
11134 nla_put_failure:
11135 genlmsg_cancel(msg, hdr);
11136 nlmsg_free(msg);
11137}
11138
947add36
JB		 11139void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11140 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11141{
947add36
JB		 11142 struct wireless_dev *wdev = dev->ieee80211_ptr;
11143 struct wiphy *wiphy = wdev->wiphy;
11144 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 11145 struct sk_buff *msg;
11146 struct nlattr *pinfoattr;
11147 void *hdr;
11148
947add36
JB		 11149 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11150
58050fce 11151 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11152 if (!msg)
11153 return;
11154
11155 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11156 if (!hdr) {
11157 nlmsg_free(msg);
11158 return;
11159 }
11160
9360ffd1 11161 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11162 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11163 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11164 goto nla_put_failure;
c063dbf5
JB		 11165
11166 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11167 if (!pinfoattr)
11168 goto nla_put_failure;
11169
9360ffd1
DM		 11170 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11171 goto nla_put_failure;
c063dbf5
JB		 11172
11173 nla_nest_end(msg, pinfoattr);
11174
3b7b72ee 11175 genlmsg_end(msg, hdr);
c063dbf5 11176
68eb5503 11177 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11178 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11179 return;
11180
11181 nla_put_failure:
11182 genlmsg_cancel(msg, hdr);
11183 nlmsg_free(msg);
11184}
947add36 11185EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11186
7f6cf311
JB		 11187void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11188 u64 cookie, bool acked, gfp_t gfp)
11189{
11190 struct wireless_dev *wdev = dev->ieee80211_ptr;
11191 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11192 struct sk_buff *msg;
11193 void *hdr;
7f6cf311 11194
4ee3e063
BL		 11195 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11196
58050fce 11197 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11198
7f6cf311
JB		 11199 if (!msg)
11200 return;
11201
11202 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11203 if (!hdr) {
11204 nlmsg_free(msg);
11205 return;
11206 }
11207
9360ffd1
DM		 11208 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11209 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11210 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11211 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11212 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11213 goto nla_put_failure;
7f6cf311 11214
9c90a9f6 11215 genlmsg_end(msg, hdr);
7f6cf311 11216
68eb5503 11217 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11218 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11219 return;
11220
11221 nla_put_failure:
11222 genlmsg_cancel(msg, hdr);
11223 nlmsg_free(msg);
11224}
11225EXPORT_SYMBOL(cfg80211_probe_status);
11226
5e760230
JB		 11227void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11228 const u8 *frame, size_t len,
37c73b5f 11229 int freq, int sig_dbm)
5e760230
JB		 11230{
11231 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11232 struct sk_buff *msg;
11233 void *hdr;
37c73b5f 11234 struct cfg80211_beacon_registration *reg;
5e760230 11235
4ee3e063
BL		 11236 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11237
37c73b5f
BG		 11238 spin_lock_bh(&rdev->beacon_registrations_lock);
11239 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11240 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11241 if (!msg) {
11242 spin_unlock_bh(&rdev->beacon_registrations_lock);
11243 return;
11244 }
5e760230 11245
37c73b5f
BG		 11246 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11247 if (!hdr)
11248 goto nla_put_failure;
5e760230 11249
37c73b5f
BG		 11250 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11251 (freq &&
11252 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11253 (sig_dbm &&
11254 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11255 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11256 goto nla_put_failure;
5e760230 11257
37c73b5f 11258 genlmsg_end(msg, hdr);
5e760230 11259
37c73b5f
BG		 11260 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11261 }
11262 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11263 return;
11264
11265 nla_put_failure:
37c73b5f
BG		 11266 spin_unlock_bh(&rdev->beacon_registrations_lock);
11267 if (hdr)
11268 genlmsg_cancel(msg, hdr);
5e760230
JB		 11269 nlmsg_free(msg);
11270}
11271EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11272
cd8f7cb4
JB		 11273#ifdef CONFIG_PM
11274void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11275 struct cfg80211_wowlan_wakeup *wakeup,
11276 gfp_t gfp)
11277{
11278 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11279 struct sk_buff *msg;
11280 void *hdr;
9c90a9f6 11281 int size = 200;
cd8f7cb4
JB		 11282
11283 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11284
11285 if (wakeup)
11286 size += wakeup->packet_present_len;
11287
11288 msg = nlmsg_new(size, gfp);
11289 if (!msg)
11290 return;
11291
11292 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11293 if (!hdr)
11294 goto free_msg;
11295
11296 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11297 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11298 goto free_msg;
11299
11300 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11301 wdev->netdev->ifindex))
11302 goto free_msg;
11303
11304 if (wakeup) {
11305 struct nlattr *reasons;
11306
11307 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11308 if (!reasons)
11309 goto free_msg;
cd8f7cb4
JB		 11310
11311 if (wakeup->disconnect &&
11312 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11313 goto free_msg;
11314 if (wakeup->magic_pkt &&
11315 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11316 goto free_msg;
11317 if (wakeup->gtk_rekey_failure &&
11318 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11319 goto free_msg;
11320 if (wakeup->eap_identity_req &&
11321 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11322 goto free_msg;
11323 if (wakeup->four_way_handshake &&
11324 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11325 goto free_msg;
11326 if (wakeup->rfkill_release &&
11327 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11328 goto free_msg;
11329
11330 if (wakeup->pattern_idx >= 0 &&
11331 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11332 wakeup->pattern_idx))
11333 goto free_msg;
11334
ae917c9f
JB		 11335 if (wakeup->tcp_match &&
11336 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11337 goto free_msg;
2a0e047e 11338
ae917c9f
JB		 11339 if (wakeup->tcp_connlost &&
11340 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11341 goto free_msg;
2a0e047e 11342
ae917c9f
JB		 11343 if (wakeup->tcp_nomoretokens &&
11344 nla_put_flag(msg,
11345 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11346 goto free_msg;
2a0e047e 11347
cd8f7cb4
JB		 11348 if (wakeup->packet) {
11349 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11350 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11351
11352 if (!wakeup->packet_80211) {
11353 pkt_attr =
11354 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11355 len_attr =
11356 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11357 }
11358
11359 if (wakeup->packet_len &&
11360 nla_put_u32(msg, len_attr, wakeup->packet_len))
11361 goto free_msg;
11362
11363 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11364 wakeup->packet))
11365 goto free_msg;
11366 }
11367
11368 nla_nest_end(msg, reasons);
11369 }
11370
9c90a9f6 11371 genlmsg_end(msg, hdr);
cd8f7cb4 11372
68eb5503 11373 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11374 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11375 return;
11376
11377 free_msg:
11378 nlmsg_free(msg);
11379}
11380EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11381#endif
11382
3475b094
JM		 11383void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11384 enum nl80211_tdls_operation oper,
11385 u16 reason_code, gfp_t gfp)
11386{
11387 struct wireless_dev *wdev = dev->ieee80211_ptr;
11388 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11389 struct sk_buff *msg;
11390 void *hdr;
3475b094
JM		 11391
11392 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11393 reason_code);
11394
11395 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11396 if (!msg)
11397 return;
11398
11399 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11400 if (!hdr) {
11401 nlmsg_free(msg);
11402 return;
11403 }
11404
11405 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11406 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11407 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11408 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11409 (reason_code > 0 &&
11410 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11411 goto nla_put_failure;
11412
9c90a9f6 11413 genlmsg_end(msg, hdr);
3475b094 11414
68eb5503 11415 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11416 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11417 return;
11418
11419 nla_put_failure:
11420 genlmsg_cancel(msg, hdr);
11421 nlmsg_free(msg);
11422}
11423EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11424
026331c4
JM		 11425static int nl80211_netlink_notify(struct notifier_block * nb,
11426 unsigned long state,
11427 void *_notify)
11428{
11429 struct netlink_notify *notify = _notify;
11430 struct cfg80211_registered_device *rdev;
11431 struct wireless_dev *wdev;
37c73b5f 11432 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11433
11434 if (state != NETLINK_URELEASE)
11435 return NOTIFY_DONE;
11436
11437 rcu_read_lock();
11438
5e760230 11439 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 11440 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 11441 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 11442
11443 spin_lock_bh(&rdev->beacon_registrations_lock);
11444 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11445 list) {
11446 if (reg->nlportid == notify->portid) {
11447 list_del(&reg->list);
11448 kfree(reg);
11449 break;
11450 }
11451 }
11452 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 11453 }
026331c4
JM		 11454
11455 rcu_read_unlock();
11456
11457 return NOTIFY_DONE;
11458}
11459
11460static struct notifier_block nl80211_netlink_notifier = {
11461 .notifier_call = nl80211_netlink_notify,
11462};
11463
355199e0
JM		 11464void cfg80211_ft_event(struct net_device *netdev,
11465 struct cfg80211_ft_event_params *ft_event)
11466{
11467 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11468 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11469 struct sk_buff *msg;
11470 void *hdr;
355199e0
JM		 11471
11472 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11473
11474 if (!ft_event->target_ap)
11475 return;
11476
11477 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11478 if (!msg)
11479 return;
11480
11481 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11482 if (!hdr)
11483 goto out;
355199e0 11484
ae917c9f
JB		 11485 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11486 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11487 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11488 goto out;
355199e0 11489
ae917c9f
JB		 11490 if (ft_event->ies &&
11491 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11492 goto out;
11493 if (ft_event->ric_ies &&
11494 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11495 ft_event->ric_ies))
11496 goto out;
355199e0 11497
9c90a9f6 11498 genlmsg_end(msg, hdr);
355199e0 11499
68eb5503 11500 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11501 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11502 return;
11503 out:
11504 nlmsg_free(msg);
355199e0
JM		 11505}
11506EXPORT_SYMBOL(cfg80211_ft_event);
11507
5de17984
AS		 11508void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11509{
11510 struct cfg80211_registered_device *rdev;
11511 struct sk_buff *msg;
11512 void *hdr;
11513 u32 nlportid;
11514
11515 rdev = wiphy_to_dev(wdev->wiphy);
11516 if (!rdev->crit_proto_nlportid)
11517 return;
11518
11519 nlportid = rdev->crit_proto_nlportid;
11520 rdev->crit_proto_nlportid = 0;
11521
11522 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11523 if (!msg)
11524 return;
11525
11526 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11527 if (!hdr)
11528 goto nla_put_failure;
11529
11530 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11531 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11532 goto nla_put_failure;
11533
11534 genlmsg_end(msg, hdr);
11535
11536 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11537 return;
11538
11539 nla_put_failure:
11540 if (hdr)
11541 genlmsg_cancel(msg, hdr);
11542 nlmsg_free(msg);
11543
11544}
11545EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11546
55682965
JB		 11547/* initialisation/exit functions */
11548
11549int nl80211_init(void)
11550{
0d63cbb5 11551 int err;
55682965 11552
2a94fe48
JB		 11553 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11554 nl80211_mcgrps);
55682965
JB		 11555 if (err)
11556 return err;
11557
026331c4
JM		 11558 err = netlink_register_notifier(&nl80211_netlink_notifier);
11559 if (err)
11560 goto err_out;
11561
55682965
JB		 11562 return 0;
11563 err_out:
11564 genl_unregister_family(&nl80211_fam);
11565 return err;
11566}
11567
11568void nl80211_exit(void)
11569{
026331c4 11570 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11571 genl_unregister_family(&nl80211_fam);
11572}
ubuntu-bionic-kernel mirror