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mac80211: minstrel_ht: set A-MSDU tx limits based on selected max_prob_rate
[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>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
0c9ca11b 6 * Copyright 2015-2016 Intel Deutschland GmbH
55682965
JB		 7 */
8
9#include <linux/if.h>
10#include <linux/module.h>
11#include <linux/err.h>
5a0e3ad6 12#include <linux/slab.h>
55682965
JB		 13#include <linux/list.h>
14#include <linux/if_ether.h>
15#include <linux/ieee80211.h>
16#include <linux/nl80211.h>
17#include <linux/rtnetlink.h>
18#include <linux/netlink.h>
2a519311 19#include <linux/etherdevice.h>
463d0183 20#include <net/net_namespace.h>
55682965
JB		 21#include <net/genetlink.h>
22#include <net/cfg80211.h>
463d0183 23#include <net/sock.h>
2a0e047e 24#include <net/inet_connection_sock.h>
55682965
JB		 25#include "core.h"
26#include "nl80211.h"
b2e1b302 27#include "reg.h"
e35e4d28 28#include "rdev-ops.h"
55682965 29
5fb628e9
JM		 30static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
33 int cipher_limit);
34
f84f771d 35static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 36 struct genl_info *info);
f84f771d 37static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 38 struct genl_info *info);
39
55682965
JB		 40/* the netlink family */
41static struct genl_family nl80211_fam = {
fb4e1568
MH		 42 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
43 .name = NL80211_GENL_NAME, /* have users key off the name instead */
44 .hdrsize = 0, /* no private header */
45 .version = 1, /* no particular meaning now */
55682965 46 .maxattr = NL80211_ATTR_MAX,
463d0183 47 .netnsok = true,
4c476991
JB		 48 .pre_doit = nl80211_pre_doit,
49 .post_doit = nl80211_post_doit,
55682965
JB		 50};
51
2a94fe48
JB		 52/* multicast groups */
53enum nl80211_multicast_groups {
54 NL80211_MCGRP_CONFIG,
55 NL80211_MCGRP_SCAN,
56 NL80211_MCGRP_REGULATORY,
57 NL80211_MCGRP_MLME,
567ffc35 58 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 59 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
60};
61
62static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 63 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
64 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
65 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
66 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
67 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
2a94fe48 68#ifdef CONFIG_NL80211_TESTMODE
71b836ec 69 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 70#endif
71};
72
89a54e48
JB		 73/* returns ERR_PTR values */
74static struct wireless_dev *
75__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 76{
89a54e48
JB		 77 struct cfg80211_registered_device *rdev;
78 struct wireless_dev *result = NULL;
79 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
80 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
81 u64 wdev_id;
82 int wiphy_idx = -1;
83 int ifidx = -1;
55682965 84
5fe231e8 85 ASSERT_RTNL();
55682965 86
89a54e48
JB		 87 if (!have_ifidx && !have_wdev_id)
88 return ERR_PTR(-EINVAL);
55682965 89
89a54e48
JB		 90 if (have_ifidx)
91 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
92 if (have_wdev_id) {
93 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
94 wiphy_idx = wdev_id >> 32;
55682965
JB		 95 }
96
89a54e48
JB		 97 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
98 struct wireless_dev *wdev;
99
100 if (wiphy_net(&rdev->wiphy) != netns)
101 continue;
102
103 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
104 continue;
105
89a54e48
JB		 106 list_for_each_entry(wdev, &rdev->wdev_list, list) {
107 if (have_ifidx && wdev->netdev &&
108 wdev->netdev->ifindex == ifidx) {
109 result = wdev;
110 break;
111 }
112 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
113 result = wdev;
114 break;
115 }
116 }
89a54e48
JB		 117
118 if (result)
119 break;
120 }
121
122 if (result)
123 return result;
124 return ERR_PTR(-ENODEV);
55682965
JB		 125}
126
a9455408 127static struct cfg80211_registered_device *
878d9ec7 128__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 129{
7fee4778
JB		 130 struct cfg80211_registered_device *rdev = NULL, *tmp;
131 struct net_device *netdev;
a9455408 132
5fe231e8 133 ASSERT_RTNL();
a9455408 134
878d9ec7 135 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 136 !attrs[NL80211_ATTR_IFINDEX] &&
137 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 138 return ERR_PTR(-EINVAL);
139
878d9ec7 140 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 141 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 142 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 143
89a54e48
JB		 144 if (attrs[NL80211_ATTR_WDEV]) {
145 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
146 struct wireless_dev *wdev;
147 bool found = false;
148
149 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
150 if (tmp) {
151 /* make sure wdev exists */
89a54e48
JB		 152 list_for_each_entry(wdev, &tmp->wdev_list, list) {
153 if (wdev->identifier != (u32)wdev_id)
154 continue;
155 found = true;
156 break;
157 }
89a54e48
JB		 158
159 if (!found)
160 tmp = NULL;
161
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164 rdev = tmp;
165 }
166 }
167
878d9ec7
JB		 168 if (attrs[NL80211_ATTR_IFINDEX]) {
169 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 170 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 171 if (netdev) {
172 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 173 tmp = wiphy_to_rdev(
174 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 175 else
176 tmp = NULL;
177
7fee4778
JB		 178 /* not wireless device -- return error */
179 if (!tmp)
180 return ERR_PTR(-EINVAL);
181
182 /* mismatch -- return error */
183 if (rdev && tmp != rdev)
184 return ERR_PTR(-EINVAL);
185
186 rdev = tmp;
a9455408 187 }
a9455408 188 }
a9455408 189
4f7eff10
JB		 190 if (!rdev)
191 return ERR_PTR(-ENODEV);
a9455408 192
4f7eff10
JB		 193 if (netns != wiphy_net(&rdev->wiphy))
194 return ERR_PTR(-ENODEV);
195
196 return rdev;
a9455408
JB		 197}
198
199/*
200 * This function returns a pointer to the driver
201 * that the genl_info item that is passed refers to.
a9455408
JB		 202 *
203 * The result of this can be a PTR_ERR and hence must
204 * be checked with IS_ERR() for errors.
205 */
206static struct cfg80211_registered_device *
4f7eff10 207cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 208{
5fe231e8 209 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 210}
211
55682965 212/* policy for the attributes */
8cd4d456 213static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 214 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
215 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 216 .len = 20-1 },
31888487 217 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 218
72bdcf34 219 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 220 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 221 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
224
b9a5f8ca
JM		 225 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 229 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 230 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 231
232 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 235
e007b857
EP		 236 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
237 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 238
b9454e83 239 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 240 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
241 .len = WLAN_MAX_KEY_LEN },
242 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
243 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
244 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 245 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 246 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 247
248 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
249 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
250 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
251 .len = IEEE80211_MAX_DATA_LEN },
252 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 254 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
255 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
256 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
257 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
258 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 259 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 260 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 261 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 262 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 263 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 264 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 265
b2e1b302
LR		 266 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
267 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
268
9f1ba906
JM		 269 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 272 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
273 .len = NL80211_MAX_SUPP_RATES },
50b12f59 274 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 275
24bdd9f4 276 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 277 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 278
6c739419 279 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 280
281 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
282 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
283 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 284 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
285 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 286
287 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
288 .len = IEEE80211_MAX_SSID_LEN },
289 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
290 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 291 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 292 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 293 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 294 [NL80211_ATTR_STA_FLAGS2] = {
295 .len = sizeof(struct nl80211_sta_flag_update),
296 },
3f77316c 297 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 298 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
299 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 300 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
301 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
302 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 303 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 304 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 305 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
306 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 307 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
308 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 309 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 310 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
311 .len = IEEE80211_MAX_DATA_LEN },
312 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 313 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 314 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 315 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 316 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 317 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 319 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 320 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
321 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 322 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 323 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 324 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 325 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 326 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 327 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 328 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 329 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 330 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 331 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
332 .len = IEEE80211_MAX_DATA_LEN },
333 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 335 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 336 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 337 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 338 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
342 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 343 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 344 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 345 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
346 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 347 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 348 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
350 .len = NL80211_HT_CAPABILITY_LEN
351 },
1d9d9213 352 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 353 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 354 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 355 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 356 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 357 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 358 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 359 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 360 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
361 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 362 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
363 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 364 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
365 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 366 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 367 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
368 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
369 .len = NL80211_VHT_CAPABILITY_LEN,
370 },
355199e0
JM		 371 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
372 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
373 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 374 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 375 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
376 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
377 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 378 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
379 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 380 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
381 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 382 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 383 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 384 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 387 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
388 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 389 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
390 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 391 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 392 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 393 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 394 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 395 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
396 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
397 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 398 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 399 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 400 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 401 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 402 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 403 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
34d50519 404 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
38de03d2 405 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
17b94247 406 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
55682965
JB		 407};
408
e31b8213 409/* policy for the key attributes */
b54452b0 410static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 411 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 412 [NL80211_KEY_IDX] = { .type = NLA_U8 },
413 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 414 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 415 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
416 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 417 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 418 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
419};
420
421/* policy for the key default flags */
422static const struct nla_policy
423nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
424 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
425 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 426};
427
ff1b6e69
JB		 428/* policy for WoWLAN attributes */
429static const struct nla_policy
430nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
431 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
432 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
433 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 435 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
436 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
437 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
438 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 439 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 440 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 441};
442
443static const struct nla_policy
444nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
445 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
446 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
447 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
448 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
449 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
450 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
451 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
452 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
453 },
454 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
455 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
456 },
457 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
458 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
459 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 460};
461
be29b99a
AK		 462/* policy for coalesce rule attributes */
463static const struct nla_policy
464nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
465 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
466 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
467 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
468};
469
e5497d76
JB		 470/* policy for GTK rekey offload attributes */
471static const struct nla_policy
472nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
473 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
474 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
475 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
476};
477
a1f1c21c
LC		 478static const struct nla_policy
479nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 480 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 481 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 482 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 483};
484
3b06d277
AS		 485static const struct nla_policy
486nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
487 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
488 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
489};
490
38de03d2
AS		 491static const struct nla_policy
492nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
493 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
494 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
495 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
496 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
497 },
498};
499
97990a06
JB		 500static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
501 struct netlink_callback *cb,
502 struct cfg80211_registered_device **rdev,
503 struct wireless_dev **wdev)
a043897a 504{
97990a06 505 int err;
a043897a 506
97990a06 507 rtnl_lock();
a043897a 508
97990a06
JB		 509 if (!cb->args[0]) {
510 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
511 nl80211_fam.attrbuf, nl80211_fam.maxattr,
512 nl80211_policy);
513 if (err)
514 goto out_unlock;
67748893 515
97990a06
JB		 516 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
517 nl80211_fam.attrbuf);
518 if (IS_ERR(*wdev)) {
519 err = PTR_ERR(*wdev);
520 goto out_unlock;
521 }
f26cbf40 522 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 523 /* 0 is the first index - add 1 to parse only once */
524 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 525 cb->args[1] = (*wdev)->identifier;
526 } else {
c319d50b
JB		 527 /* subtract the 1 again here */
528 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 529 struct wireless_dev *tmp;
67748893 530
97990a06
JB		 531 if (!wiphy) {
532 err = -ENODEV;
533 goto out_unlock;
534 }
f26cbf40 535 *rdev = wiphy_to_rdev(wiphy);
97990a06 536 *wdev = NULL;
67748893 537
97990a06
JB		 538 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
539 if (tmp->identifier == cb->args[1]) {
540 *wdev = tmp;
541 break;
542 }
543 }
67748893 544
97990a06
JB		 545 if (!*wdev) {
546 err = -ENODEV;
547 goto out_unlock;
548 }
67748893
JB		 549 }
550
67748893 551 return 0;
97990a06 552 out_unlock:
67748893
JB		 553 rtnl_unlock();
554 return err;
555}
556
97990a06 557static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 558{
67748893
JB		 559 rtnl_unlock();
560}
561
f4a11bb0
JB		 562/* IE validation */
563static bool is_valid_ie_attr(const struct nlattr *attr)
564{
565 const u8 *pos;
566 int len;
567
568 if (!attr)
569 return true;
570
571 pos = nla_data(attr);
572 len = nla_len(attr);
573
574 while (len) {
575 u8 elemlen;
576
577 if (len < 2)
578 return false;
579 len -= 2;
580
581 elemlen = pos[1];
582 if (elemlen > len)
583 return false;
584
585 len -= elemlen;
586 pos += 2 + elemlen;
587 }
588
589 return true;
590}
591
55682965 592/* message building helper */
15e47304 593static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 594 int flags, u8 cmd)
595{
596 /* since there is no private header just add the generic one */
15e47304 597 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 598}
599
5dab3b8a 600static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 601 struct ieee80211_channel *chan,
602 bool large)
5dab3b8a 603{
ea077c1c
RL		 604 /* Some channels must be completely excluded from the
605 * list to protect old user-space tools from breaking
606 */
607 if (!large && chan->flags &
608 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
609 return 0;
610
9360ffd1
DM		 611 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
612 chan->center_freq))
613 goto nla_put_failure;
5dab3b8a 614
9360ffd1
DM		 615 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
616 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
617 goto nla_put_failure;
8fe02e16
LR		 618 if (chan->flags & IEEE80211_CHAN_NO_IR) {
619 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
620 goto nla_put_failure;
621 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
622 goto nla_put_failure;
623 }
cdc89b97
JB		 624 if (chan->flags & IEEE80211_CHAN_RADAR) {
625 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
626 goto nla_put_failure;
627 if (large) {
628 u32 time;
629
630 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
631
632 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
633 chan->dfs_state))
634 goto nla_put_failure;
635 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
636 time))
637 goto nla_put_failure;
089027e5
JD		 638 if (nla_put_u32(msg,
639 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
640 chan->dfs_cac_ms))
641 goto nla_put_failure;
cdc89b97
JB		 642 }
643 }
5dab3b8a 644
fe1abafd
JB		 645 if (large) {
646 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
647 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
648 goto nla_put_failure;
649 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
650 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
651 goto nla_put_failure;
652 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
653 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
654 goto nla_put_failure;
655 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
656 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
657 goto nla_put_failure;
570dbde1
DS		 658 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
659 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
660 goto nla_put_failure;
06f207fc
AN		 661 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
662 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 663 goto nla_put_failure;
ea077c1c
RL		 664 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
665 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
666 goto nla_put_failure;
667 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
668 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
669 goto nla_put_failure;
fe1abafd
JB		 670 }
671
9360ffd1
DM		 672 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
673 DBM_TO_MBM(chan->max_power)))
674 goto nla_put_failure;
5dab3b8a
LR		 675
676 return 0;
677
678 nla_put_failure:
679 return -ENOBUFS;
680}
681
55682965
JB		 682/* netlink command implementations */
683
b9454e83
JB		 684struct key_parse {
685 struct key_params p;
686 int idx;
e31b8213 687 int type;
b9454e83 688 bool def, defmgmt;
dbd2fd65 689 bool def_uni, def_multi;
b9454e83
JB		 690};
691
692static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
693{
694 struct nlattr *tb[NL80211_KEY_MAX + 1];
695 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
696 nl80211_key_policy);
697 if (err)
698 return err;
699
700 k->def = !!tb[NL80211_KEY_DEFAULT];
701 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
702
dbd2fd65
JB		 703 if (k->def) {
704 k->def_uni = true;
705 k->def_multi = true;
706 }
707 if (k->defmgmt)
708 k->def_multi = true;
709
b9454e83
JB		 710 if (tb[NL80211_KEY_IDX])
711 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
712
713 if (tb[NL80211_KEY_DATA]) {
714 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
715 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
716 }
717
718 if (tb[NL80211_KEY_SEQ]) {
719 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
720 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
721 }
722
723 if (tb[NL80211_KEY_CIPHER])
724 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
725
e31b8213
JB		 726 if (tb[NL80211_KEY_TYPE]) {
727 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
728 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
729 return -EINVAL;
730 }
731
dbd2fd65
JB		 732 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
733 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 734 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
735 tb[NL80211_KEY_DEFAULT_TYPES],
736 nl80211_key_default_policy);
dbd2fd65
JB		 737 if (err)
738 return err;
739
740 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
741 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
742 }
743
b9454e83
JB		 744 return 0;
745}
746
747static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
748{
749 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
750 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
751 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
752 }
753
754 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
755 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
756 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
757 }
758
759 if (info->attrs[NL80211_ATTR_KEY_IDX])
760 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
761
762 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
763 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
764
765 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
766 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
767
dbd2fd65
JB		 768 if (k->def) {
769 k->def_uni = true;
770 k->def_multi = true;
771 }
772 if (k->defmgmt)
773 k->def_multi = true;
774
e31b8213
JB		 775 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
776 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
777 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
778 return -EINVAL;
779 }
780
dbd2fd65
JB		 781 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
782 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
783 int err = nla_parse_nested(
784 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
785 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
786 nl80211_key_default_policy);
787 if (err)
788 return err;
789
790 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
791 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
792 }
793
b9454e83
JB		 794 return 0;
795}
796
797static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
798{
799 int err;
800
801 memset(k, 0, sizeof(*k));
802 k->idx = -1;
e31b8213 803 k->type = -1;
b9454e83
JB		 804
805 if (info->attrs[NL80211_ATTR_KEY])
806 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
807 else
808 err = nl80211_parse_key_old(info, k);
809
810 if (err)
811 return err;
812
813 if (k->def && k->defmgmt)
814 return -EINVAL;
815
dbd2fd65
JB		 816 if (k->defmgmt) {
817 if (k->def_uni || !k->def_multi)
818 return -EINVAL;
819 }
820
b9454e83
JB		 821 if (k->idx != -1) {
822 if (k->defmgmt) {
823 if (k->idx < 4 || k->idx > 5)
824 return -EINVAL;
825 } else if (k->def) {
826 if (k->idx < 0 || k->idx > 3)
827 return -EINVAL;
828 } else {
829 if (k->idx < 0 || k->idx > 5)
830 return -EINVAL;
831 }
832 }
833
834 return 0;
835}
836
fffd0934
JB		 837static struct cfg80211_cached_keys *
838nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 839 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 840{
841 struct key_parse parse;
842 struct nlattr *key;
843 struct cfg80211_cached_keys *result;
844 int rem, err, def = 0;
845
846 result = kzalloc(sizeof(*result), GFP_KERNEL);
847 if (!result)
848 return ERR_PTR(-ENOMEM);
849
850 result->def = -1;
851 result->defmgmt = -1;
852
853 nla_for_each_nested(key, keys, rem) {
854 memset(&parse, 0, sizeof(parse));
855 parse.idx = -1;
856
857 err = nl80211_parse_key_new(key, &parse);
858 if (err)
859 goto error;
860 err = -EINVAL;
861 if (!parse.p.key)
862 goto error;
863 if (parse.idx < 0 || parse.idx > 4)
864 goto error;
865 if (parse.def) {
866 if (def)
867 goto error;
868 def = 1;
869 result->def = parse.idx;
dbd2fd65
JB		 870 if (!parse.def_uni || !parse.def_multi)
871 goto error;
fffd0934
JB		 872 } else if (parse.defmgmt)
873 goto error;
874 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 875 parse.idx, false, NULL);
fffd0934
JB		 876 if (err)
877 goto error;
878 result->params[parse.idx].cipher = parse.p.cipher;
879 result->params[parse.idx].key_len = parse.p.key_len;
880 result->params[parse.idx].key = result->data[parse.idx];
881 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 882
883 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
884 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
885 if (no_ht)
886 *no_ht = true;
887 }
fffd0934
JB		 888 }
889
890 return result;
891 error:
892 kfree(result);
893 return ERR_PTR(err);
894}
895
896static int nl80211_key_allowed(struct wireless_dev *wdev)
897{
898 ASSERT_WDEV_LOCK(wdev);
899
fffd0934
JB		 900 switch (wdev->iftype) {
901 case NL80211_IFTYPE_AP:
902 case NL80211_IFTYPE_AP_VLAN:
074ac8df 903 case NL80211_IFTYPE_P2P_GO:
ff973af7 904 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 905 break;
906 case NL80211_IFTYPE_ADHOC:
fffd0934 907 case NL80211_IFTYPE_STATION:
074ac8df 908 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 909 if (!wdev->current_bss)
fffd0934
JB		 910 return -ENOLINK;
911 break;
de4fcbad 912 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 913 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 914 case NL80211_IFTYPE_MONITOR:
915 case NL80211_IFTYPE_P2P_DEVICE:
916 case NL80211_IFTYPE_WDS:
917 case NUM_NL80211_IFTYPES:
fffd0934
JB		 918 return -EINVAL;
919 }
920
921 return 0;
922}
923
664834de
JM		 924static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
925 struct nlattr *tb)
926{
927 struct ieee80211_channel *chan;
928
929 if (tb == NULL)
930 return NULL;
931 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
932 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
933 return NULL;
934 return chan;
935}
936
7527a782
JB		 937static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
938{
939 struct nlattr *nl_modes = nla_nest_start(msg, attr);
940 int i;
941
942 if (!nl_modes)
943 goto nla_put_failure;
944
945 i = 0;
946 while (ifmodes) {
9360ffd1
DM		 947 if ((ifmodes & 1) && nla_put_flag(msg, i))
948 goto nla_put_failure;
7527a782
JB		 949 ifmodes >>= 1;
950 i++;
951 }
952
953 nla_nest_end(msg, nl_modes);
954 return 0;
955
956nla_put_failure:
957 return -ENOBUFS;
958}
959
960static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 961 struct sk_buff *msg,
962 bool large)
7527a782
JB		 963{
964 struct nlattr *nl_combis;
965 int i, j;
966
967 nl_combis = nla_nest_start(msg,
968 NL80211_ATTR_INTERFACE_COMBINATIONS);
969 if (!nl_combis)
970 goto nla_put_failure;
971
972 for (i = 0; i < wiphy->n_iface_combinations; i++) {
973 const struct ieee80211_iface_combination *c;
974 struct nlattr *nl_combi, *nl_limits;
975
976 c = &wiphy->iface_combinations[i];
977
978 nl_combi = nla_nest_start(msg, i + 1);
979 if (!nl_combi)
980 goto nla_put_failure;
981
982 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
983 if (!nl_limits)
984 goto nla_put_failure;
985
986 for (j = 0; j < c->n_limits; j++) {
987 struct nlattr *nl_limit;
988
989 nl_limit = nla_nest_start(msg, j + 1);
990 if (!nl_limit)
991 goto nla_put_failure;
9360ffd1
DM		 992 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
993 c->limits[j].max))
994 goto nla_put_failure;
7527a782
JB		 995 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
996 c->limits[j].types))
997 goto nla_put_failure;
998 nla_nest_end(msg, nl_limit);
999 }
1000
1001 nla_nest_end(msg, nl_limits);
1002
9360ffd1
DM		 1003 if (c->beacon_int_infra_match &&
1004 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1005 goto nla_put_failure;
1006 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1007 c->num_different_channels) ||
1008 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1009 c->max_interfaces))
1010 goto nla_put_failure;
cdc89b97 1011 if (large &&
8c48b50a
FF		 1012 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1013 c->radar_detect_widths) ||
1014 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1015 c->radar_detect_regions)))
cdc89b97 1016 goto nla_put_failure;
7527a782
JB		 1017
1018 nla_nest_end(msg, nl_combi);
1019 }
1020
1021 nla_nest_end(msg, nl_combis);
1022
1023 return 0;
1024nla_put_failure:
1025 return -ENOBUFS;
1026}
1027
3713b4e3 1028#ifdef CONFIG_PM
b56cf720
JB		 1029static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1030 struct sk_buff *msg)
1031{
964dc9e2 1032 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1033 struct nlattr *nl_tcp;
1034
1035 if (!tcp)
1036 return 0;
1037
1038 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1039 if (!nl_tcp)
1040 return -ENOBUFS;
1041
1042 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1043 tcp->data_payload_max))
1044 return -ENOBUFS;
1045
1046 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1047 tcp->data_payload_max))
1048 return -ENOBUFS;
1049
1050 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1051 return -ENOBUFS;
1052
1053 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1054 sizeof(*tcp->tok), tcp->tok))
1055 return -ENOBUFS;
1056
1057 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1058 tcp->data_interval_max))
1059 return -ENOBUFS;
1060
1061 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1062 tcp->wake_payload_max))
1063 return -ENOBUFS;
1064
1065 nla_nest_end(msg, nl_tcp);
1066 return 0;
1067}
1068
3713b4e3 1069static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1070 struct cfg80211_registered_device *rdev,
b56cf720 1071 bool large)
55682965 1072{
3713b4e3 1073 struct nlattr *nl_wowlan;
55682965 1074
1b8ec87a 1075 if (!rdev->wiphy.wowlan)
3713b4e3 1076 return 0;
55682965 1077
3713b4e3
JB		 1078 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1079 if (!nl_wowlan)
1080 return -ENOBUFS;
9360ffd1 1081
1b8ec87a 1082 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1083 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1084 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1085 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1086 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1087 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1088 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1090 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1091 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1092 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1094 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1096 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1097 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1098 return -ENOBUFS;
9360ffd1 1099
1b8ec87a 1100 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1101 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1102 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1103 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1104 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1105 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1106 };
9360ffd1 1107
3713b4e3
JB		 1108 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1109 sizeof(pat), &pat))
1110 return -ENOBUFS;
1111 }
9360ffd1 1112
75453ccb
LC		 1113 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1114 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1115 rdev->wiphy.wowlan->max_nd_match_sets))
1116 return -ENOBUFS;
1117
1b8ec87a 1118 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1119 return -ENOBUFS;
1120
3713b4e3 1121 nla_nest_end(msg, nl_wowlan);
9360ffd1 1122
3713b4e3
JB		 1123 return 0;
1124}
1125#endif
9360ffd1 1126
be29b99a 1127static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1128 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1129{
1130 struct nl80211_coalesce_rule_support rule;
1131
1b8ec87a 1132 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1133 return 0;
1134
1b8ec87a
ZG		 1135 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1136 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1137 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1138 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1139 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1140 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1141
1142 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1143 return -ENOBUFS;
1144
1145 return 0;
1146}
1147
3713b4e3
JB		 1148static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1149 struct ieee80211_supported_band *sband)
1150{
1151 struct nlattr *nl_rates, *nl_rate;
1152 struct ieee80211_rate *rate;
1153 int i;
87bbbe22 1154
3713b4e3
JB		 1155 /* add HT info */
1156 if (sband->ht_cap.ht_supported &&
1157 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1158 sizeof(sband->ht_cap.mcs),
1159 &sband->ht_cap.mcs) ||
1160 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1161 sband->ht_cap.cap) ||
1162 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1163 sband->ht_cap.ampdu_factor) ||
1164 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1165 sband->ht_cap.ampdu_density)))
1166 return -ENOBUFS;
afe0cbf8 1167
3713b4e3
JB		 1168 /* add VHT info */
1169 if (sband->vht_cap.vht_supported &&
1170 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1171 sizeof(sband->vht_cap.vht_mcs),
1172 &sband->vht_cap.vht_mcs) ||
1173 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1174 sband->vht_cap.cap)))
1175 return -ENOBUFS;
f59ac048 1176
3713b4e3
JB		 1177 /* add bitrates */
1178 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1179 if (!nl_rates)
1180 return -ENOBUFS;
ee688b00 1181
3713b4e3
JB		 1182 for (i = 0; i < sband->n_bitrates; i++) {
1183 nl_rate = nla_nest_start(msg, i);
1184 if (!nl_rate)
1185 return -ENOBUFS;
ee688b00 1186
3713b4e3
JB		 1187 rate = &sband->bitrates[i];
1188 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1189 rate->bitrate))
1190 return -ENOBUFS;
1191 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1192 nla_put_flag(msg,
1193 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1194 return -ENOBUFS;
ee688b00 1195
3713b4e3
JB		 1196 nla_nest_end(msg, nl_rate);
1197 }
d51626df 1198
3713b4e3 1199 nla_nest_end(msg, nl_rates);
bf0c111e 1200
3713b4e3
JB		 1201 return 0;
1202}
ee688b00 1203
3713b4e3
JB		 1204static int
1205nl80211_send_mgmt_stypes(struct sk_buff *msg,
1206 const struct ieee80211_txrx_stypes *mgmt_stypes)
1207{
1208 u16 stypes;
1209 struct nlattr *nl_ftypes, *nl_ifs;
1210 enum nl80211_iftype ift;
1211 int i;
ee688b00 1212
3713b4e3
JB		 1213 if (!mgmt_stypes)
1214 return 0;
5dab3b8a 1215
3713b4e3
JB		 1216 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1217 if (!nl_ifs)
1218 return -ENOBUFS;
e2f367f2 1219
3713b4e3
JB		 1220 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1221 nl_ftypes = nla_nest_start(msg, ift);
1222 if (!nl_ftypes)
1223 return -ENOBUFS;
1224 i = 0;
1225 stypes = mgmt_stypes[ift].tx;
1226 while (stypes) {
1227 if ((stypes & 1) &&
1228 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1229 (i << 4) | IEEE80211_FTYPE_MGMT))
1230 return -ENOBUFS;
1231 stypes >>= 1;
1232 i++;
ee688b00 1233 }
3713b4e3
JB		 1234 nla_nest_end(msg, nl_ftypes);
1235 }
ee688b00 1236
3713b4e3 1237 nla_nest_end(msg, nl_ifs);
ee688b00 1238
3713b4e3
JB		 1239 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1240 if (!nl_ifs)
1241 return -ENOBUFS;
ee688b00 1242
3713b4e3
JB		 1243 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1244 nl_ftypes = nla_nest_start(msg, ift);
1245 if (!nl_ftypes)
1246 return -ENOBUFS;
1247 i = 0;
1248 stypes = mgmt_stypes[ift].rx;
1249 while (stypes) {
1250 if ((stypes & 1) &&
1251 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1252 (i << 4) | IEEE80211_FTYPE_MGMT))
1253 return -ENOBUFS;
1254 stypes >>= 1;
1255 i++;
1256 }
1257 nla_nest_end(msg, nl_ftypes);
1258 }
1259 nla_nest_end(msg, nl_ifs);
ee688b00 1260
3713b4e3
JB		 1261 return 0;
1262}
ee688b00 1263
86e8cf98
JB		 1264struct nl80211_dump_wiphy_state {
1265 s64 filter_wiphy;
1266 long start;
1267 long split_start, band_start, chan_start;
1268 bool split;
1269};
1270
1b8ec87a 1271static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1272 enum nl80211_commands cmd,
3713b4e3 1273 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1274 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1275{
1276 void *hdr;
1277 struct nlattr *nl_bands, *nl_band;
1278 struct nlattr *nl_freqs, *nl_freq;
1279 struct nlattr *nl_cmds;
1280 enum ieee80211_band band;
1281 struct ieee80211_channel *chan;
1282 int i;
1283 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1284 rdev->wiphy.mgmt_stypes;
fe1abafd 1285 u32 features;
ee688b00 1286
3bb20556 1287 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1288 if (!hdr)
1289 return -ENOBUFS;
ee688b00 1290
86e8cf98
JB		 1291 if (WARN_ON(!state))
1292 return -EINVAL;
ee688b00 1293
1b8ec87a 1294 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1295 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1296 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1297 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1298 cfg80211_rdev_list_generation))
8fdc621d
JB		 1299 goto nla_put_failure;
1300
3bb20556
JB		 1301 if (cmd != NL80211_CMD_NEW_WIPHY)
1302 goto finish;
1303
86e8cf98 1304 switch (state->split_start) {
3713b4e3
JB		 1305 case 0:
1306 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1307 rdev->wiphy.retry_short) ||
3713b4e3 1308 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1309 rdev->wiphy.retry_long) ||
3713b4e3 1310 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1311 rdev->wiphy.frag_threshold) ||
3713b4e3 1312 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1313 rdev->wiphy.rts_threshold) ||
3713b4e3 1314 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1315 rdev->wiphy.coverage_class) ||
3713b4e3 1316 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1317 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1318 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1319 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1320 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1321 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1322 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1323 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1324 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1325 rdev->wiphy.max_match_sets) ||
1326 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1327 rdev->wiphy.max_sched_scan_plans) ||
1328 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1329 rdev->wiphy.max_sched_scan_plan_interval) ||
1330 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1331 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1332 goto nla_put_failure;
3713b4e3 1333
1b8ec87a 1334 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1335 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1336 goto nla_put_failure;
1b8ec87a 1337 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1338 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1339 goto nla_put_failure;
1b8ec87a 1340 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1341 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1342 goto nla_put_failure;
1b8ec87a 1343 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1344 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1345 goto nla_put_failure;
1b8ec87a 1346 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1347 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1348 goto nla_put_failure;
1b8ec87a 1349 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1350 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1351 goto nla_put_failure;
86e8cf98
JB		 1352 state->split_start++;
1353 if (state->split)
3713b4e3
JB		 1354 break;
1355 case 1:
1356 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1357 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1358 rdev->wiphy.cipher_suites))
3713b4e3 1359 goto nla_put_failure;
4745fc09 1360
3713b4e3 1361 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1362 rdev->wiphy.max_num_pmkids))
3713b4e3 1363 goto nla_put_failure;
b23aa676 1364
1b8ec87a 1365 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1366 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1367 goto nla_put_failure;
b23aa676 1368
3713b4e3 1369 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1370 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1371 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1372 rdev->wiphy.available_antennas_rx))
9360ffd1 1373 goto nla_put_failure;
b23aa676 1374
1b8ec87a 1375 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1376 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1377 rdev->wiphy.probe_resp_offload))
3713b4e3 1378 goto nla_put_failure;
8fdc621d 1379
1b8ec87a
ZG		 1380 if ((rdev->wiphy.available_antennas_tx ||
1381 rdev->wiphy.available_antennas_rx) &&
1382 rdev->ops->get_antenna) {
3713b4e3
JB		 1383 u32 tx_ant = 0, rx_ant = 0;
1384 int res;
1b8ec87a 1385 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1386 if (!res) {
1387 if (nla_put_u32(msg,
1388 NL80211_ATTR_WIPHY_ANTENNA_TX,
1389 tx_ant) ||
1390 nla_put_u32(msg,
1391 NL80211_ATTR_WIPHY_ANTENNA_RX,
1392 rx_ant))
1393 goto nla_put_failure;
1394 }
1395 }
a293911d 1396
86e8cf98
JB		 1397 state->split_start++;
1398 if (state->split)
3713b4e3
JB		 1399 break;
1400 case 2:
1401 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1402 rdev->wiphy.interface_modes))
3713b4e3 1403 goto nla_put_failure;
86e8cf98
JB		 1404 state->split_start++;
1405 if (state->split)
3713b4e3
JB		 1406 break;
1407 case 3:
1408 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1409 if (!nl_bands)
1410 goto nla_put_failure;
f7ca38df 1411
86e8cf98
JB		 1412 for (band = state->band_start;
1413 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1414 struct ieee80211_supported_band *sband;
2e161f78 1415
1b8ec87a 1416 sband = rdev->wiphy.bands[band];
2e161f78 1417
3713b4e3
JB		 1418 if (!sband)
1419 continue;
1420
1421 nl_band = nla_nest_start(msg, band);
1422 if (!nl_band)
2e161f78 1423 goto nla_put_failure;
3713b4e3 1424
86e8cf98 1425 switch (state->chan_start) {
3713b4e3
JB		 1426 case 0:
1427 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1428 goto nla_put_failure;
86e8cf98
JB		 1429 state->chan_start++;
1430 if (state->split)
3713b4e3
JB		 1431 break;
1432 default:
1433 /* add frequencies */
1434 nl_freqs = nla_nest_start(
1435 msg, NL80211_BAND_ATTR_FREQS);
1436 if (!nl_freqs)
1437 goto nla_put_failure;
1438
86e8cf98 1439 for (i = state->chan_start - 1;
3713b4e3
JB		 1440 i < sband->n_channels;
1441 i++) {
1442 nl_freq = nla_nest_start(msg, i);
1443 if (!nl_freq)
1444 goto nla_put_failure;
1445
1446 chan = &sband->channels[i];
1447
86e8cf98
JB		 1448 if (nl80211_msg_put_channel(
1449 msg, chan,
1450 state->split))
3713b4e3
JB		 1451 goto nla_put_failure;
1452
1453 nla_nest_end(msg, nl_freq);
86e8cf98 1454 if (state->split)
3713b4e3
JB		 1455 break;
1456 }
1457 if (i < sband->n_channels)
86e8cf98 1458 state->chan_start = i + 2;
3713b4e3 1459 else
86e8cf98 1460 state->chan_start = 0;
3713b4e3
JB		 1461 nla_nest_end(msg, nl_freqs);
1462 }
1463
1464 nla_nest_end(msg, nl_band);
1465
86e8cf98 1466 if (state->split) {
3713b4e3 1467 /* start again here */
86e8cf98 1468 if (state->chan_start)
3713b4e3
JB		 1469 band--;
1470 break;
2e161f78 1471 }
2e161f78 1472 }
3713b4e3 1473 nla_nest_end(msg, nl_bands);
2e161f78 1474
3713b4e3 1475 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1476 state->band_start = band + 1;
3713b4e3 1477 else
86e8cf98 1478 state->band_start = 0;
74b70a4e 1479
3713b4e3 1480 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1481 if (state->band_start == 0 && state->chan_start == 0)
1482 state->split_start++;
1483 if (state->split)
3713b4e3
JB		 1484 break;
1485 case 4:
1486 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1487 if (!nl_cmds)
2e161f78
JB		 1488 goto nla_put_failure;
1489
3713b4e3
JB		 1490 i = 0;
1491#define CMD(op, n) \
1492 do { \
1b8ec87a 1493 if (rdev->ops->op) { \
3713b4e3
JB		 1494 i++; \
1495 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1496 goto nla_put_failure; \
1497 } \
1498 } while (0)
1499
1500 CMD(add_virtual_intf, NEW_INTERFACE);
1501 CMD(change_virtual_intf, SET_INTERFACE);
1502 CMD(add_key, NEW_KEY);
1503 CMD(start_ap, START_AP);
1504 CMD(add_station, NEW_STATION);
1505 CMD(add_mpath, NEW_MPATH);
1506 CMD(update_mesh_config, SET_MESH_CONFIG);
1507 CMD(change_bss, SET_BSS);
1508 CMD(auth, AUTHENTICATE);
1509 CMD(assoc, ASSOCIATE);
1510 CMD(deauth, DEAUTHENTICATE);
1511 CMD(disassoc, DISASSOCIATE);
1512 CMD(join_ibss, JOIN_IBSS);
1513 CMD(join_mesh, JOIN_MESH);
1514 CMD(set_pmksa, SET_PMKSA);
1515 CMD(del_pmksa, DEL_PMKSA);
1516 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1517 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1518 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1519 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1520 CMD(mgmt_tx, FRAME);
1521 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1522 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1523 i++;
1524 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1525 goto nla_put_failure;
2e161f78 1526 }
1b8ec87a
ZG		 1527 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1528 rdev->ops->join_mesh) {
3713b4e3
JB		 1529 i++;
1530 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1531 goto nla_put_failure;
1532 }
1533 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1534 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1535 CMD(tdls_mgmt, TDLS_MGMT);
1536 CMD(tdls_oper, TDLS_OPER);
1537 }
1b8ec87a 1538 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1539 CMD(sched_scan_start, START_SCHED_SCAN);
1540 CMD(probe_client, PROBE_CLIENT);
1541 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1542 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1543 i++;
1544 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1545 goto nla_put_failure;
1546 }
1547 CMD(start_p2p_device, START_P2P_DEVICE);
1548 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1549#ifdef CONFIG_NL80211_TESTMODE
1550 CMD(testmode_cmd, TESTMODE);
1551#endif
86e8cf98 1552 if (state->split) {
5de17984
AS		 1553 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1554 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1555 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1556 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1557 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1558 if (rdev->wiphy.features &
1559 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1560 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1561 }
02df00eb 1562 /* add into the if now */
3713b4e3 1563#undef CMD
ff1b6e69 1564
1b8ec87a 1565 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1566 i++;
1567 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1568 goto nla_put_failure;
ff1b6e69
JB		 1569 }
1570
1b8ec87a 1571 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1572 i++;
1573 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1574 goto nla_put_failure;
1575 }
1576
1577 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1578 state->split_start++;
1579 if (state->split)
3713b4e3
JB		 1580 break;
1581 case 5:
1b8ec87a
ZG		 1582 if (rdev->ops->remain_on_channel &&
1583 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1584 nla_put_u32(msg,
1585 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1586 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1587 goto nla_put_failure;
1588
1b8ec87a 1589 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1590 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1591 goto nla_put_failure;
1592
1593 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1594 goto nla_put_failure;
86e8cf98
JB		 1595 state->split_start++;
1596 if (state->split)
3713b4e3
JB		 1597 break;
1598 case 6:
1599#ifdef CONFIG_PM
1b8ec87a 1600 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1601 goto nla_put_failure;
86e8cf98
JB		 1602 state->split_start++;
1603 if (state->split)
3713b4e3
JB		 1604 break;
1605#else
86e8cf98 1606 state->split_start++;
dfb89c56 1607#endif
3713b4e3
JB		 1608 case 7:
1609 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1610 rdev->wiphy.software_iftypes))
3713b4e3 1611 goto nla_put_failure;
ff1b6e69 1612
1b8ec87a 1613 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1614 state->split))
3713b4e3 1615 goto nla_put_failure;
7527a782 1616
86e8cf98
JB		 1617 state->split_start++;
1618 if (state->split)
3713b4e3
JB		 1619 break;
1620 case 8:
1b8ec87a 1621 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1622 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1623 rdev->wiphy.ap_sme_capa))
3713b4e3 1624 goto nla_put_failure;
7527a782 1625
1b8ec87a 1626 features = rdev->wiphy.features;
fe1abafd
JB		 1627 /*
1628 * We can only add the per-channel limit information if the
1629 * dump is split, otherwise it makes it too big. Therefore
1630 * only advertise it in that case.
1631 */
86e8cf98 1632 if (state->split)
fe1abafd
JB		 1633 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1634 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1635 goto nla_put_failure;
562a7480 1636
1b8ec87a 1637 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1638 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1639 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1640 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1641 goto nla_put_failure;
1f074bd8 1642
1b8ec87a
ZG		 1643 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1644 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1645 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1646 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1647 goto nla_put_failure;
7e7c8926 1648
3713b4e3
JB		 1649 /*
1650 * Any information below this point is only available to
1651 * applications that can deal with it being split. This
1652 * helps ensure that newly added capabilities don't break
1653 * older tools by overrunning their buffers.
1654 *
1655 * We still increment split_start so that in the split
1656 * case we'll continue with more data in the next round,
1657 * but break unconditionally so unsplit data stops here.
1658 */
86e8cf98 1659 state->split_start++;
3713b4e3
JB		 1660 break;
1661 case 9:
1b8ec87a 1662 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1663 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1664 rdev->wiphy.extended_capabilities_len,
1665 rdev->wiphy.extended_capabilities) ||
fe1abafd 1666 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1667 rdev->wiphy.extended_capabilities_len,
1668 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1669 goto nla_put_failure;
a50df0c4 1670
1b8ec87a 1671 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1672 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1673 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1674 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1675 goto nla_put_failure;
1676
be29b99a
AK		 1677 state->split_start++;
1678 break;
1679 case 10:
1b8ec87a 1680 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1681 goto nla_put_failure;
1682
1b8ec87a 1683 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1684 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1685 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1686 goto nla_put_failure;
b43504cf 1687
1b8ec87a 1688 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1689 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1690 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1691 goto nla_put_failure;
1692
ad7e718c
JB		 1693 state->split_start++;
1694 break;
1695 case 11:
1b8ec87a 1696 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1697 const struct nl80211_vendor_cmd_info *info;
1698 struct nlattr *nested;
1699
1700 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1701 if (!nested)
1702 goto nla_put_failure;
1703
1b8ec87a
ZG		 1704 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1705 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1706 if (nla_put(msg, i + 1, sizeof(*info), info))
1707 goto nla_put_failure;
1708 }
1709 nla_nest_end(msg, nested);
1710 }
1711
1b8ec87a 1712 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1713 const struct nl80211_vendor_cmd_info *info;
1714 struct nlattr *nested;
ad7e718c 1715
567ffc35
JB		 1716 nested = nla_nest_start(msg,
1717 NL80211_ATTR_VENDOR_EVENTS);
1718 if (!nested)
ad7e718c 1719 goto nla_put_failure;
567ffc35 1720
1b8ec87a
ZG		 1721 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1722 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1723 if (nla_put(msg, i + 1, sizeof(*info), info))
1724 goto nla_put_failure;
1725 }
1726 nla_nest_end(msg, nested);
1727 }
9a774c78
AO		 1728 state->split_start++;
1729 break;
1730 case 12:
1731 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1732 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1733 rdev->wiphy.max_num_csa_counters))
1734 goto nla_put_failure;
01e0daa4 1735
1bdd716c
AN		 1736 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1737 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1738 goto nla_put_failure;
1739
d75bb06b
GKS		 1740 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1741 sizeof(rdev->wiphy.ext_features),
1742 rdev->wiphy.ext_features))
1743 goto nla_put_failure;
1744
38de03d2
AS		 1745 if (rdev->wiphy.bss_select_support) {
1746 struct nlattr *nested;
1747 u32 bss_select_support = rdev->wiphy.bss_select_support;
1748
1749 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1750 if (!nested)
1751 goto nla_put_failure;
1752
1753 i = 0;
1754 while (bss_select_support) {
1755 if ((bss_select_support & 1) &&
1756 nla_put_flag(msg, i))
1757 goto nla_put_failure;
1758 i++;
1759 bss_select_support >>= 1;
1760 }
1761 nla_nest_end(msg, nested);
1762 }
1763
3713b4e3 1764 /* done */
86e8cf98 1765 state->split_start = 0;
3713b4e3
JB		 1766 break;
1767 }
3bb20556 1768 finish:
053c095a
JB		 1769 genlmsg_end(msg, hdr);
1770 return 0;
55682965
JB		 1771
1772 nla_put_failure:
bc3ed28c
TG		 1773 genlmsg_cancel(msg, hdr);
1774 return -EMSGSIZE;
55682965
JB		 1775}
1776
86e8cf98
JB		 1777static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1778 struct netlink_callback *cb,
1779 struct nl80211_dump_wiphy_state *state)
1780{
1781 struct nlattr **tb = nl80211_fam.attrbuf;
1782 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1783 tb, nl80211_fam.maxattr, nl80211_policy);
1784 /* ignore parse errors for backward compatibility */
1785 if (ret)
1786 return 0;
1787
1788 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1789 if (tb[NL80211_ATTR_WIPHY])
1790 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1791 if (tb[NL80211_ATTR_WDEV])
1792 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1793 if (tb[NL80211_ATTR_IFINDEX]) {
1794 struct net_device *netdev;
1795 struct cfg80211_registered_device *rdev;
1796 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1797
7f2b8562 1798 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1799 if (!netdev)
1800 return -ENODEV;
1801 if (netdev->ieee80211_ptr) {
f26cbf40 1802 rdev = wiphy_to_rdev(
86e8cf98
JB		 1803 netdev->ieee80211_ptr->wiphy);
1804 state->filter_wiphy = rdev->wiphy_idx;
1805 }
86e8cf98
JB		 1806 }
1807
1808 return 0;
1809}
1810
55682965
JB		 1811static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1812{
645e77de 1813 int idx = 0, ret;
86e8cf98 1814 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1815 struct cfg80211_registered_device *rdev;
3a5a423b 1816
5fe231e8 1817 rtnl_lock();
86e8cf98
JB		 1818 if (!state) {
1819 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1820 if (!state) {
1821 rtnl_unlock();
86e8cf98 1822 return -ENOMEM;
3713b4e3 1823 }
86e8cf98
JB		 1824 state->filter_wiphy = -1;
1825 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1826 if (ret) {
1827 kfree(state);
1828 rtnl_unlock();
1829 return ret;
3713b4e3 1830 }
86e8cf98 1831 cb->args[0] = (long)state;
3713b4e3
JB		 1832 }
1833
1b8ec87a
ZG		 1834 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1835 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1836 continue;
86e8cf98 1837 if (++idx <= state->start)
55682965 1838 continue;
86e8cf98 1839 if (state->filter_wiphy != -1 &&
1b8ec87a 1840 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1841 continue;
1842 /* attempt to fit multiple wiphy data chunks into the skb */
1843 do {
3bb20556
JB		 1844 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1845 skb,
3713b4e3
JB		 1846 NETLINK_CB(cb->skb).portid,
1847 cb->nlh->nlmsg_seq,
86e8cf98 1848 NLM_F_MULTI, state);
3713b4e3
JB		 1849 if (ret < 0) {
1850 /*
1851 * If sending the wiphy data didn't fit (ENOBUFS
1852 * or EMSGSIZE returned), this SKB is still
1853 * empty (so it's not too big because another
1854 * wiphy dataset is already in the skb) and
1855 * we've not tried to adjust the dump allocation
1856 * yet ... then adjust the alloc size to be
1857 * bigger, and return 1 but with the empty skb.
1858 * This results in an empty message being RX'ed
1859 * in userspace, but that is ignored.
1860 *
1861 * We can then retry with the larger buffer.
1862 */
1863 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1864 !skb->len && !state->split &&
3713b4e3
JB		 1865 cb->min_dump_alloc < 4096) {
1866 cb->min_dump_alloc = 4096;
f12cb289 1867 state->split_start = 0;
d98cae64 1868 rtnl_unlock();
3713b4e3
JB		 1869 return 1;
1870 }
1871 idx--;
1872 break;
645e77de 1873 }
86e8cf98 1874 } while (state->split_start > 0);
3713b4e3 1875 break;
55682965 1876 }
5fe231e8 1877 rtnl_unlock();
55682965 1878
86e8cf98 1879 state->start = idx;
55682965
JB		 1880
1881 return skb->len;
1882}
1883
86e8cf98
JB		 1884static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1885{
1886 kfree((void *)cb->args[0]);
1887 return 0;
1888}
1889
55682965
JB		 1890static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1891{
1892 struct sk_buff *msg;
1b8ec87a 1893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1894 struct nl80211_dump_wiphy_state state = {};
55682965 1895
645e77de 1896 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1897 if (!msg)
4c476991 1898 return -ENOMEM;
55682965 1899
3bb20556
JB		 1900 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1901 info->snd_portid, info->snd_seq, 0,
86e8cf98 1902 &state) < 0) {
4c476991
JB		 1903 nlmsg_free(msg);
1904 return -ENOBUFS;
1905 }
55682965 1906
134e6375 1907 return genlmsg_reply(msg, info);
55682965
JB		 1908}
1909
31888487
JM		 1910static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1911 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1912 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1913 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1914 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1915 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1916};
1917
1918static int parse_txq_params(struct nlattr *tb[],
1919 struct ieee80211_txq_params *txq_params)
1920{
a3304b0a 1921 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1922 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1923 !tb[NL80211_TXQ_ATTR_AIFS])
1924 return -EINVAL;
1925
a3304b0a 1926 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1927 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1928 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1929 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1930 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1931
a3304b0a
JB		 1932 if (txq_params->ac >= NL80211_NUM_ACS)
1933 return -EINVAL;
1934
31888487
JM		 1935 return 0;
1936}
1937
f444de05
JB		 1938static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1939{
1940 /*
cc1d2806
JB		 1941 * You can only set the channel explicitly for WDS interfaces,
1942 * all others have their channel managed via their respective
1943 * "establish a connection" command (connect, join, ...)
1944 *
1945 * For AP/GO and mesh mode, the channel can be set with the
1946 * channel userspace API, but is only stored and passed to the
1947 * low-level driver when the AP starts or the mesh is joined.
1948 * This is for backward compatibility, userspace can also give
1949 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1950 *
1951 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1952 * whatever else is going on, so they have their own special
1953 * operation to set the monitor channel if possible.
f444de05
JB		 1954 */
1955 return !wdev ||
1956 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1957 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1958 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1959 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1960}
1961
683b6d3b
JB		 1962static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1963 struct genl_info *info,
1964 struct cfg80211_chan_def *chandef)
1965{
dbeca2ea 1966 u32 control_freq;
683b6d3b
JB		 1967
1968 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1969 return -EINVAL;
1970
1971 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1972
1973 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1974 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1975 chandef->center_freq1 = control_freq;
1976 chandef->center_freq2 = 0;
683b6d3b
JB		 1977
1978 /* Primary channel not allowed */
1979 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1980 return -EINVAL;
1981
3d9d1d66
JB		 1982 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1983 enum nl80211_channel_type chantype;
1984
1985 chantype = nla_get_u32(
1986 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1987
1988 switch (chantype) {
1989 case NL80211_CHAN_NO_HT:
1990 case NL80211_CHAN_HT20:
1991 case NL80211_CHAN_HT40PLUS:
1992 case NL80211_CHAN_HT40MINUS:
1993 cfg80211_chandef_create(chandef, chandef->chan,
1994 chantype);
1995 break;
1996 default:
1997 return -EINVAL;
1998 }
1999 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2000 chandef->width =
2001 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2002 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2003 chandef->center_freq1 =
2004 nla_get_u32(
2005 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2006 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2007 chandef->center_freq2 =
2008 nla_get_u32(
2009 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2010 }
2011
9f5e8f6e 2012 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 2013 return -EINVAL;
2014
9f5e8f6e
JB		 2015 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2016 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 2017 return -EINVAL;
2018
2f301ab2
SW		 2019 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2020 chandef->width == NL80211_CHAN_WIDTH_10) &&
2021 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2022 return -EINVAL;
2023
683b6d3b
JB		 2024 return 0;
2025}
2026
f444de05 2027static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 2028 struct net_device *dev,
f444de05
JB		 2029 struct genl_info *info)
2030{
683b6d3b 2031 struct cfg80211_chan_def chandef;
f444de05 2032 int result;
e8c9bd5b 2033 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2034 struct wireless_dev *wdev = NULL;
e8c9bd5b 2035
e16821bc
JM		 2036 if (dev)
2037 wdev = dev->ieee80211_ptr;
f444de05
JB		 2038 if (!nl80211_can_set_dev_channel(wdev))
2039 return -EOPNOTSUPP;
e16821bc
JM		 2040 if (wdev)
2041 iftype = wdev->iftype;
f444de05 2042
683b6d3b
JB		 2043 result = nl80211_parse_chandef(rdev, info, &chandef);
2044 if (result)
2045 return result;
f444de05 2046
e8c9bd5b 2047 switch (iftype) {
aa430da4
JB		 2048 case NL80211_IFTYPE_AP:
2049 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2050 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2051 iftype)) {
aa430da4
JB		 2052 result = -EINVAL;
2053 break;
2054 }
e16821bc
JM		 2055 if (wdev->beacon_interval) {
2056 if (!dev || !rdev->ops->set_ap_chanwidth ||
2057 !(rdev->wiphy.features &
2058 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2059 result = -EBUSY;
2060 break;
2061 }
2062
2063 /* Only allow dynamic channel width changes */
2064 if (chandef.chan != wdev->preset_chandef.chan) {
2065 result = -EBUSY;
2066 break;
2067 }
2068 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2069 if (result)
2070 break;
2071 }
683b6d3b 2072 wdev->preset_chandef = chandef;
aa430da4
JB		 2073 result = 0;
2074 break;
cc1d2806 2075 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2076 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2077 break;
e8c9bd5b 2078 case NL80211_IFTYPE_MONITOR:
683b6d3b 2079 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2080 break;
aa430da4 2081 default:
e8c9bd5b 2082 result = -EINVAL;
f444de05 2083 }
f444de05
JB		 2084
2085 return result;
2086}
2087
2088static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2089{
4c476991
JB		 2090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2091 struct net_device *netdev = info->user_ptr[1];
f444de05 2092
e16821bc 2093 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2094}
2095
e8347eba
BJ		 2096static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2097{
43b19952
JB		 2098 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2099 struct net_device *dev = info->user_ptr[1];
2100 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2101 const u8 *bssid;
e8347eba
BJ		 2102
2103 if (!info->attrs[NL80211_ATTR_MAC])
2104 return -EINVAL;
2105
43b19952
JB		 2106 if (netif_running(dev))
2107 return -EBUSY;
e8347eba 2108
43b19952
JB		 2109 if (!rdev->ops->set_wds_peer)
2110 return -EOPNOTSUPP;
e8347eba 2111
43b19952
JB		 2112 if (wdev->iftype != NL80211_IFTYPE_WDS)
2113 return -EOPNOTSUPP;
e8347eba
BJ		 2114
2115 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2116 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2117}
2118
2119
55682965
JB		 2120static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2121{
2122 struct cfg80211_registered_device *rdev;
f444de05
JB		 2123 struct net_device *netdev = NULL;
2124 struct wireless_dev *wdev;
a1e567c8 2125 int result = 0, rem_txq_params = 0;
31888487 2126 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2127 u32 changed;
2128 u8 retry_short = 0, retry_long = 0;
2129 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2130 u8 coverage_class = 0;
55682965 2131
5fe231e8
JB		 2132 ASSERT_RTNL();
2133
f444de05
JB		 2134 /*
2135 * Try to find the wiphy and netdev. Normally this
2136 * function shouldn't need the netdev, but this is
2137 * done for backward compatibility -- previously
2138 * setting the channel was done per wiphy, but now
2139 * it is per netdev. Previous userland like hostapd
2140 * also passed a netdev to set_wiphy, so that it is
2141 * possible to let that go to the right netdev!
2142 */
4bbf4d56 2143
f444de05
JB		 2144 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2145 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2146
7f2b8562 2147 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2148 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2149 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2150 else
f444de05 2151 netdev = NULL;
4bbf4d56
JB		 2152 }
2153
f444de05 2154 if (!netdev) {
878d9ec7
JB		 2155 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2156 info->attrs);
5fe231e8 2157 if (IS_ERR(rdev))
4c476991 2158 return PTR_ERR(rdev);
f444de05
JB		 2159 wdev = NULL;
2160 netdev = NULL;
2161 result = 0;
71fe96bf 2162 } else
f444de05 2163 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2164
2165 /*
2166 * end workaround code, by now the rdev is available
2167 * and locked, and wdev may or may not be NULL.
2168 */
4bbf4d56
JB		 2169
2170 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2171 result = cfg80211_dev_rename(
2172 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2173
4bbf4d56 2174 if (result)
7f2b8562 2175 return result;
31888487
JM		 2176
2177 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2178 struct ieee80211_txq_params txq_params;
2179 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2180
7f2b8562
YX		 2181 if (!rdev->ops->set_txq_params)
2182 return -EOPNOTSUPP;
31888487 2183
7f2b8562
YX		 2184 if (!netdev)
2185 return -EINVAL;
f70f01c2 2186
133a3ff2 2187 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2188 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2189 return -EINVAL;
133a3ff2 2190
7f2b8562
YX		 2191 if (!netif_running(netdev))
2192 return -ENETDOWN;
2b5f8b0b 2193
31888487
JM		 2194 nla_for_each_nested(nl_txq_params,
2195 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2196 rem_txq_params) {
ae811e21
JB		 2197 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2198 nla_data(nl_txq_params),
2199 nla_len(nl_txq_params),
2200 txq_params_policy);
2201 if (result)
2202 return result;
31888487
JM		 2203 result = parse_txq_params(tb, &txq_params);
2204 if (result)
7f2b8562 2205 return result;
31888487 2206
e35e4d28
HG		 2207 result = rdev_set_txq_params(rdev, netdev,
2208 &txq_params);
31888487 2209 if (result)
7f2b8562 2210 return result;
31888487
JM		 2211 }
2212 }
55682965 2213
72bdcf34 2214 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2215 result = __nl80211_set_channel(
2216 rdev,
2217 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2218 info);
72bdcf34 2219 if (result)
7f2b8562 2220 return result;
72bdcf34
JM		 2221 }
2222
98d2ff8b 2223 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2224 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2225 enum nl80211_tx_power_setting type;
2226 int idx, mbm = 0;
2227
c8442118
JB		 2228 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2229 txp_wdev = NULL;
2230
7f2b8562
YX		 2231 if (!rdev->ops->set_tx_power)
2232 return -EOPNOTSUPP;
98d2ff8b
JO		 2233
2234 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2235 type = nla_get_u32(info->attrs[idx]);
2236
2237 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2238 (type != NL80211_TX_POWER_AUTOMATIC))
2239 return -EINVAL;
98d2ff8b
JO		 2240
2241 if (type != NL80211_TX_POWER_AUTOMATIC) {
2242 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2243 mbm = nla_get_u32(info->attrs[idx]);
2244 }
2245
c8442118 2246 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2247 if (result)
7f2b8562 2248 return result;
98d2ff8b
JO		 2249 }
2250
afe0cbf8
BR		 2251 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2252 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2253 u32 tx_ant, rx_ant;
7f531e03
BR		 2254 if ((!rdev->wiphy.available_antennas_tx &&
2255 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2256 !rdev->ops->set_antenna)
2257 return -EOPNOTSUPP;
afe0cbf8
BR		 2258
2259 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2260 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2261
a7ffac95 2262 /* reject antenna configurations which don't match the
7f531e03
BR		 2263 * available antenna masks, except for the "all" mask */
2264 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2265 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2266 return -EINVAL;
a7ffac95 2267
7f531e03
BR		 2268 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2269 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2270
e35e4d28 2271 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2272 if (result)
7f2b8562 2273 return result;
afe0cbf8
BR		 2274 }
2275
b9a5f8ca
JM		 2276 changed = 0;
2277
2278 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2279 retry_short = nla_get_u8(
2280 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2281 if (retry_short == 0)
2282 return -EINVAL;
2283
b9a5f8ca
JM		 2284 changed |= WIPHY_PARAM_RETRY_SHORT;
2285 }
2286
2287 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2288 retry_long = nla_get_u8(
2289 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2290 if (retry_long == 0)
2291 return -EINVAL;
2292
b9a5f8ca
JM		 2293 changed |= WIPHY_PARAM_RETRY_LONG;
2294 }
2295
2296 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2297 frag_threshold = nla_get_u32(
2298 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2299 if (frag_threshold < 256)
2300 return -EINVAL;
2301
b9a5f8ca
JM		 2302 if (frag_threshold != (u32) -1) {
2303 /*
2304 * Fragments (apart from the last one) are required to
2305 * have even length. Make the fragmentation code
2306 * simpler by stripping LSB should someone try to use
2307 * odd threshold value.
2308 */
2309 frag_threshold &= ~0x1;
2310 }
2311 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2312 }
2313
2314 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2315 rts_threshold = nla_get_u32(
2316 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2317 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2318 }
2319
81077e82 2320 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2321 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2322 return -EINVAL;
2323
81077e82
LT		 2324 coverage_class = nla_get_u8(
2325 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2326 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2327 }
2328
3057dbfd
LB		 2329 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2330 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2331 return -EOPNOTSUPP;
2332
2333 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2334 }
2335
b9a5f8ca
JM		 2336 if (changed) {
2337 u8 old_retry_short, old_retry_long;
2338 u32 old_frag_threshold, old_rts_threshold;
81077e82 2339 u8 old_coverage_class;
b9a5f8ca 2340
7f2b8562
YX		 2341 if (!rdev->ops->set_wiphy_params)
2342 return -EOPNOTSUPP;
b9a5f8ca
JM		 2343
2344 old_retry_short = rdev->wiphy.retry_short;
2345 old_retry_long = rdev->wiphy.retry_long;
2346 old_frag_threshold = rdev->wiphy.frag_threshold;
2347 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2348 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2349
2350 if (changed & WIPHY_PARAM_RETRY_SHORT)
2351 rdev->wiphy.retry_short = retry_short;
2352 if (changed & WIPHY_PARAM_RETRY_LONG)
2353 rdev->wiphy.retry_long = retry_long;
2354 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2355 rdev->wiphy.frag_threshold = frag_threshold;
2356 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2357 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2358 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2359 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2360
e35e4d28 2361 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2362 if (result) {
2363 rdev->wiphy.retry_short = old_retry_short;
2364 rdev->wiphy.retry_long = old_retry_long;
2365 rdev->wiphy.frag_threshold = old_frag_threshold;
2366 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2367 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2368 return result;
b9a5f8ca
JM		 2369 }
2370 }
7f2b8562 2371 return 0;
55682965
JB		 2372}
2373
71bbc994
JB		 2374static inline u64 wdev_id(struct wireless_dev *wdev)
2375{
2376 return (u64)wdev->identifier |
f26cbf40 2377 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2378}
55682965 2379
683b6d3b 2380static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2381 const struct cfg80211_chan_def *chandef)
683b6d3b 2382{
601555cd
JB		 2383 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2384 return -EINVAL;
3d9d1d66 2385
683b6d3b
JB		 2386 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2387 chandef->chan->center_freq))
2388 return -ENOBUFS;
3d9d1d66
JB		 2389 switch (chandef->width) {
2390 case NL80211_CHAN_WIDTH_20_NOHT:
2391 case NL80211_CHAN_WIDTH_20:
2392 case NL80211_CHAN_WIDTH_40:
2393 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2394 cfg80211_get_chandef_type(chandef)))
2395 return -ENOBUFS;
2396 break;
2397 default:
2398 break;
2399 }
2400 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2401 return -ENOBUFS;
2402 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2403 return -ENOBUFS;
2404 if (chandef->center_freq2 &&
2405 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2406 return -ENOBUFS;
2407 return 0;
2408}
2409
15e47304 2410static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2411 struct cfg80211_registered_device *rdev,
8f894be2 2412 struct wireless_dev *wdev, bool removal)
55682965 2413{
72fb2abc 2414 struct net_device *dev = wdev->netdev;
8f894be2 2415 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2416 void *hdr;
2417
8f894be2
TB		 2418 if (removal)
2419 cmd = NL80211_CMD_DEL_INTERFACE;
2420
2421 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2422 if (!hdr)
2423 return -1;
2424
72fb2abc
JB		 2425 if (dev &&
2426 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2427 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2428 goto nla_put_failure;
2429
2430 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2431 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2432 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2433 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2434 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2435 rdev->devlist_generation ^
2436 (cfg80211_rdev_list_generation << 2)))
2437 goto nla_put_failure;
f5ea9120 2438
5b7ccaf3 2439 if (rdev->ops->get_channel) {
683b6d3b
JB		 2440 int ret;
2441 struct cfg80211_chan_def chandef;
2442
2443 ret = rdev_get_channel(rdev, wdev, &chandef);
2444 if (ret == 0) {
2445 if (nl80211_send_chandef(msg, &chandef))
2446 goto nla_put_failure;
2447 }
d91df0e3
PF		 2448 }
2449
d55d0d59
RM		 2450 if (rdev->ops->get_tx_power) {
2451 int dbm, ret;
2452
2453 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2454 if (ret == 0 &&
2455 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2456 DBM_TO_MBM(dbm)))
2457 goto nla_put_failure;
2458 }
2459
b84e7a05
AQ		 2460 if (wdev->ssid_len) {
2461 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2462 goto nla_put_failure;
2463 }
2464
053c095a
JB		 2465 genlmsg_end(msg, hdr);
2466 return 0;
55682965
JB		 2467
2468 nla_put_failure:
bc3ed28c
TG		 2469 genlmsg_cancel(msg, hdr);
2470 return -EMSGSIZE;
55682965
JB		 2471}
2472
2473static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2474{
2475 int wp_idx = 0;
2476 int if_idx = 0;
2477 int wp_start = cb->args[0];
2478 int if_start = cb->args[1];
f5ea9120 2479 struct cfg80211_registered_device *rdev;
55682965
JB		 2480 struct wireless_dev *wdev;
2481
5fe231e8 2482 rtnl_lock();
f5ea9120
JB		 2483 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2484 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2485 continue;
bba95fef
JB		 2486 if (wp_idx < wp_start) {
2487 wp_idx++;
55682965 2488 continue;
bba95fef 2489 }
55682965
JB		 2490 if_idx = 0;
2491
89a54e48 2492 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2493 if (if_idx < if_start) {
2494 if_idx++;
55682965 2495 continue;
bba95fef 2496 }
15e47304 2497 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2498 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2499 rdev, wdev, false) < 0) {
bba95fef
JB		 2500 goto out;
2501 }
2502 if_idx++;
55682965 2503 }
bba95fef
JB		 2504
2505 wp_idx++;
55682965 2506 }
bba95fef 2507 out:
5fe231e8 2508 rtnl_unlock();
55682965
JB		 2509
2510 cb->args[0] = wp_idx;
2511 cb->args[1] = if_idx;
2512
2513 return skb->len;
2514}
2515
2516static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2517{
2518 struct sk_buff *msg;
1b8ec87a 2519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2520 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2521
fd2120ca 2522 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2523 if (!msg)
4c476991 2524 return -ENOMEM;
55682965 2525
15e47304 2526 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2527 rdev, wdev, false) < 0) {
4c476991
JB		 2528 nlmsg_free(msg);
2529 return -ENOBUFS;
2530 }
55682965 2531
134e6375 2532 return genlmsg_reply(msg, info);
55682965
JB		 2533}
2534
66f7ac50
MW		 2535static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2536 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2537 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2538 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2539 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2540 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2541 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2542};
2543
2544static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2545{
2546 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2547 int flag;
2548
2549 *mntrflags = 0;
2550
2551 if (!nla)
2552 return -EINVAL;
2553
2554 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2555 nla, mntr_flags_policy))
2556 return -EINVAL;
2557
2558 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2559 if (flags[flag])
2560 *mntrflags |= (1<<flag);
2561
2562 return 0;
2563}
2564
9bc383de 2565static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2566 struct net_device *netdev, u8 use_4addr,
2567 enum nl80211_iftype iftype)
9bc383de 2568{
ad4bb6f8 2569 if (!use_4addr) {
f350a0a8 2570 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2571 return -EBUSY;
9bc383de 2572 return 0;
ad4bb6f8 2573 }
9bc383de
JB		 2574
2575 switch (iftype) {
2576 case NL80211_IFTYPE_AP_VLAN:
2577 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2578 return 0;
2579 break;
2580 case NL80211_IFTYPE_STATION:
2581 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2582 return 0;
2583 break;
2584 default:
2585 break;
2586 }
2587
2588 return -EOPNOTSUPP;
2589}
2590
55682965
JB		 2591static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2592{
4c476991 2593 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2594 struct vif_params params;
e36d56b6 2595 int err;
04a773ad 2596 enum nl80211_iftype otype, ntype;
4c476991 2597 struct net_device *dev = info->user_ptr[1];
92ffe055 2598 u32 _flags, *flags = NULL;
ac7f9cfa 2599 bool change = false;
55682965 2600
2ec600d6
LCC		 2601 memset(&params, 0, sizeof(params));
2602
04a773ad 2603 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2604
723b038d 2605 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2606 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2607 if (otype != ntype)
ac7f9cfa 2608 change = true;
4c476991
JB		 2609 if (ntype > NL80211_IFTYPE_MAX)
2610 return -EINVAL;
723b038d
JB		 2611 }
2612
92ffe055 2613 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2614 struct wireless_dev *wdev = dev->ieee80211_ptr;
2615
4c476991
JB		 2616 if (ntype != NL80211_IFTYPE_MESH_POINT)
2617 return -EINVAL;
29cbe68c
JB		 2618 if (netif_running(dev))
2619 return -EBUSY;
2620
2621 wdev_lock(wdev);
2622 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2623 IEEE80211_MAX_MESH_ID_LEN);
2624 wdev->mesh_id_up_len =
2625 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2626 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2627 wdev->mesh_id_up_len);
2628 wdev_unlock(wdev);
2ec600d6
LCC		 2629 }
2630
8b787643
FF		 2631 if (info->attrs[NL80211_ATTR_4ADDR]) {
2632 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2633 change = true;
ad4bb6f8 2634 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2635 if (err)
4c476991 2636 return err;
8b787643
FF		 2637 } else {
2638 params.use_4addr = -1;
2639 }
2640
92ffe055 2641 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2642 if (ntype != NL80211_IFTYPE_MONITOR)
2643 return -EINVAL;
92ffe055
JB		 2644 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2645 &_flags);
ac7f9cfa 2646 if (err)
4c476991 2647 return err;
ac7f9cfa
JB		 2648
2649 flags = &_flags;
2650 change = true;
92ffe055 2651 }
3b85875a 2652
18003297 2653 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2654 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2655 return -EOPNOTSUPP;
2656
ac7f9cfa 2657 if (change)
3d54d255 2658 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2659 else
2660 err = 0;
60719ffd 2661
9bc383de
JB		 2662 if (!err && params.use_4addr != -1)
2663 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2664
55682965
JB		 2665 return err;
2666}
2667
2668static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2669{
4c476991 2670 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2671 struct vif_params params;
84efbb84 2672 struct wireless_dev *wdev;
8f894be2 2673 struct sk_buff *msg, *event;
55682965
JB		 2674 int err;
2675 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2676 u32 flags;
55682965 2677
78f22b6a
JB		 2678 /* to avoid failing a new interface creation due to pending removal */
2679 cfg80211_destroy_ifaces(rdev);
2680
2ec600d6
LCC		 2681 memset(&params, 0, sizeof(params));
2682
55682965
JB		 2683 if (!info->attrs[NL80211_ATTR_IFNAME])
2684 return -EINVAL;
2685
2686 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2687 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2688 if (type > NL80211_IFTYPE_MAX)
2689 return -EINVAL;
2690 }
2691
79c97e97 2692 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2693 !(rdev->wiphy.interface_modes & (1 << type)))
2694 return -EOPNOTSUPP;
55682965 2695
e8f479b1
BG		 2696 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2697 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2698 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2699 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2700 ETH_ALEN);
2701 if (!is_valid_ether_addr(params.macaddr))
2702 return -EADDRNOTAVAIL;
2703 }
2704
9bc383de 2705 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2706 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2707 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2708 if (err)
4c476991 2709 return err;
9bc383de 2710 }
8b787643 2711
66f7ac50
MW		 2712 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2713 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2714 &flags);
e057d3c3 2715
18003297 2716 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2717 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2718 return -EOPNOTSUPP;
2719
a18c7192
JB		 2720 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2721 if (!msg)
2722 return -ENOMEM;
2723
e35e4d28
HG		 2724 wdev = rdev_add_virtual_intf(rdev,
2725 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2726 NET_NAME_USER, type, err ? NULL : &flags,
2727 &params);
d687cbb7
RM		 2728 if (WARN_ON(!wdev)) {
2729 nlmsg_free(msg);
2730 return -EPROTO;
2731 } else if (IS_ERR(wdev)) {
1c90f9d4 2732 nlmsg_free(msg);
84efbb84 2733 return PTR_ERR(wdev);
1c90f9d4 2734 }
2ec600d6 2735
18e5ca65 2736 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2737 wdev->owner_nlportid = info->snd_portid;
2738
98104fde
JB		 2739 switch (type) {
2740 case NL80211_IFTYPE_MESH_POINT:
2741 if (!info->attrs[NL80211_ATTR_MESH_ID])
2742 break;
29cbe68c
JB		 2743 wdev_lock(wdev);
2744 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2745 IEEE80211_MAX_MESH_ID_LEN);
2746 wdev->mesh_id_up_len =
2747 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2748 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2749 wdev->mesh_id_up_len);
2750 wdev_unlock(wdev);
98104fde
JB		 2751 break;
2752 case NL80211_IFTYPE_P2P_DEVICE:
2753 /*
2754 * P2P Device doesn't have a netdev, so doesn't go
2755 * through the netdev notifier and must be added here
2756 */
2757 mutex_init(&wdev->mtx);
2758 INIT_LIST_HEAD(&wdev->event_list);
2759 spin_lock_init(&wdev->event_lock);
2760 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2761 spin_lock_init(&wdev->mgmt_registrations_lock);
2762
98104fde
JB		 2763 wdev->identifier = ++rdev->wdev_id;
2764 list_add_rcu(&wdev->list, &rdev->wdev_list);
2765 rdev->devlist_generation++;
98104fde
JB		 2766 break;
2767 default:
2768 break;
29cbe68c
JB		 2769 }
2770
15e47304 2771 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2772 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2773 nlmsg_free(msg);
2774 return -ENOBUFS;
2775 }
2776
8f894be2
TB		 2777 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2778 if (event) {
2779 if (nl80211_send_iface(event, 0, 0, 0,
2780 rdev, wdev, false) < 0) {
2781 nlmsg_free(event);
2782 goto out;
2783 }
2784
2785 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2786 event, 0, NL80211_MCGRP_CONFIG,
2787 GFP_KERNEL);
2788 }
2789
2790out:
1c90f9d4 2791 return genlmsg_reply(msg, info);
55682965
JB		 2792}
2793
2794static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2795{
4c476991 2796 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2797 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2798 struct sk_buff *msg;
2799 int status;
55682965 2800
4c476991
JB		 2801 if (!rdev->ops->del_virtual_intf)
2802 return -EOPNOTSUPP;
55682965 2803
8f894be2
TB		 2804 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2805 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2806 nlmsg_free(msg);
2807 msg = NULL;
2808 }
2809
84efbb84
JB		 2810 /*
2811 * If we remove a wireless device without a netdev then clear
2812 * user_ptr[1] so that nl80211_post_doit won't dereference it
2813 * to check if it needs to do dev_put(). Otherwise it crashes
2814 * since the wdev has been freed, unlike with a netdev where
2815 * we need the dev_put() for the netdev to really be freed.
2816 */
2817 if (!wdev->netdev)
2818 info->user_ptr[1] = NULL;
2819
8f894be2
TB		 2820 status = rdev_del_virtual_intf(rdev, wdev);
2821 if (status >= 0 && msg)
2822 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2823 msg, 0, NL80211_MCGRP_CONFIG,
2824 GFP_KERNEL);
2825 else
2826 nlmsg_free(msg);
2827
2828 return status;
55682965
JB		 2829}
2830
1d9d9213
SW		 2831static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2832{
2833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2834 struct net_device *dev = info->user_ptr[1];
2835 u16 noack_map;
2836
2837 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2838 return -EINVAL;
2839
2840 if (!rdev->ops->set_noack_map)
2841 return -EOPNOTSUPP;
2842
2843 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2844
e35e4d28 2845 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2846}
2847
41ade00f
JB		 2848struct get_key_cookie {
2849 struct sk_buff *msg;
2850 int error;
b9454e83 2851 int idx;
41ade00f
JB		 2852};
2853
2854static void get_key_callback(void *c, struct key_params *params)
2855{
b9454e83 2856 struct nlattr *key;
41ade00f
JB		 2857 struct get_key_cookie *cookie = c;
2858
9360ffd1
DM		 2859 if ((params->key &&
2860 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2861 params->key_len, params->key)) ||
2862 (params->seq &&
2863 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2864 params->seq_len, params->seq)) ||
2865 (params->cipher &&
2866 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2867 params->cipher)))
2868 goto nla_put_failure;
41ade00f 2869
b9454e83
JB		 2870 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2871 if (!key)
2872 goto nla_put_failure;
2873
9360ffd1
DM		 2874 if ((params->key &&
2875 nla_put(cookie->msg, NL80211_KEY_DATA,
2876 params->key_len, params->key)) ||
2877 (params->seq &&
2878 nla_put(cookie->msg, NL80211_KEY_SEQ,
2879 params->seq_len, params->seq)) ||
2880 (params->cipher &&
2881 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2882 params->cipher)))
2883 goto nla_put_failure;
b9454e83 2884
9360ffd1
DM		 2885 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2886 goto nla_put_failure;
b9454e83
JB		 2887
2888 nla_nest_end(cookie->msg, key);
2889
41ade00f
JB		 2890 return;
2891 nla_put_failure:
2892 cookie->error = 1;
2893}
2894
2895static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2896{
4c476991 2897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2898 int err;
4c476991 2899 struct net_device *dev = info->user_ptr[1];
41ade00f 2900 u8 key_idx = 0;
e31b8213
JB		 2901 const u8 *mac_addr = NULL;
2902 bool pairwise;
41ade00f
JB		 2903 struct get_key_cookie cookie = {
2904 .error = 0,
2905 };
2906 void *hdr;
2907 struct sk_buff *msg;
2908
2909 if (info->attrs[NL80211_ATTR_KEY_IDX])
2910 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2911
3cfcf6ac 2912 if (key_idx > 5)
41ade00f
JB		 2913 return -EINVAL;
2914
2915 if (info->attrs[NL80211_ATTR_MAC])
2916 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2917
e31b8213
JB		 2918 pairwise = !!mac_addr;
2919 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2920 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2921 if (kt >= NUM_NL80211_KEYTYPES)
2922 return -EINVAL;
2923 if (kt != NL80211_KEYTYPE_GROUP &&
2924 kt != NL80211_KEYTYPE_PAIRWISE)
2925 return -EINVAL;
2926 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2927 }
2928
4c476991
JB		 2929 if (!rdev->ops->get_key)
2930 return -EOPNOTSUPP;
41ade00f 2931
0fa7b391
JB		 2932 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2933 return -ENOENT;
2934
fd2120ca 2935 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2936 if (!msg)
2937 return -ENOMEM;
41ade00f 2938
15e47304 2939 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2940 NL80211_CMD_NEW_KEY);
cb35fba3 2941 if (!hdr)
9fe271af 2942 goto nla_put_failure;
41ade00f
JB		 2943
2944 cookie.msg = msg;
b9454e83 2945 cookie.idx = key_idx;
41ade00f 2946
9360ffd1
DM		 2947 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2948 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2949 goto nla_put_failure;
2950 if (mac_addr &&
2951 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2952 goto nla_put_failure;
41ade00f 2953
e35e4d28
HG		 2954 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2955 get_key_callback);
41ade00f
JB		 2956
2957 if (err)
6c95e2a2 2958 goto free_msg;
41ade00f
JB		 2959
2960 if (cookie.error)
2961 goto nla_put_failure;
2962
2963 genlmsg_end(msg, hdr);
4c476991 2964 return genlmsg_reply(msg, info);
41ade00f
JB		 2965
2966 nla_put_failure:
2967 err = -ENOBUFS;
6c95e2a2 2968 free_msg:
41ade00f 2969 nlmsg_free(msg);
41ade00f
JB		 2970 return err;
2971}
2972
2973static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2974{
4c476991 2975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2976 struct key_parse key;
41ade00f 2977 int err;
4c476991 2978 struct net_device *dev = info->user_ptr[1];
41ade00f 2979
b9454e83
JB		 2980 err = nl80211_parse_key(info, &key);
2981 if (err)
2982 return err;
41ade00f 2983
b9454e83 2984 if (key.idx < 0)
41ade00f
JB		 2985 return -EINVAL;
2986
b9454e83
JB		 2987 /* only support setting default key */
2988 if (!key.def && !key.defmgmt)
41ade00f
JB		 2989 return -EINVAL;
2990
dbd2fd65 2991 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2992
dbd2fd65
JB		 2993 if (key.def) {
2994 if (!rdev->ops->set_default_key) {
2995 err = -EOPNOTSUPP;
2996 goto out;
2997 }
41ade00f 2998
dbd2fd65
JB		 2999 err = nl80211_key_allowed(dev->ieee80211_ptr);
3000 if (err)
3001 goto out;
3002
e35e4d28 3003 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 3004 key.def_uni, key.def_multi);
3005
3006 if (err)
3007 goto out;
fffd0934 3008
3d23e349 3009#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 3010 dev->ieee80211_ptr->wext.default_key = key.idx;
3011#endif
3012 } else {
3013 if (key.def_uni || !key.def_multi) {
3014 err = -EINVAL;
3015 goto out;
3016 }
3017
3018 if (!rdev->ops->set_default_mgmt_key) {
3019 err = -EOPNOTSUPP;
3020 goto out;
3021 }
3022
3023 err = nl80211_key_allowed(dev->ieee80211_ptr);
3024 if (err)
3025 goto out;
3026
e35e4d28 3027 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 3028 if (err)
3029 goto out;
3030
3031#ifdef CONFIG_CFG80211_WEXT
3032 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3033#endif
dbd2fd65
JB		 3034 }
3035
3036 out:
fffd0934 3037 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3038
41ade00f
JB		 3039 return err;
3040}
3041
3042static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3043{
4c476991 3044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3045 int err;
4c476991 3046 struct net_device *dev = info->user_ptr[1];
b9454e83 3047 struct key_parse key;
e31b8213 3048 const u8 *mac_addr = NULL;
41ade00f 3049
b9454e83
JB		 3050 err = nl80211_parse_key(info, &key);
3051 if (err)
3052 return err;
41ade00f 3053
b9454e83 3054 if (!key.p.key)
41ade00f
JB		 3055 return -EINVAL;
3056
41ade00f
JB		 3057 if (info->attrs[NL80211_ATTR_MAC])
3058 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3059
e31b8213
JB		 3060 if (key.type == -1) {
3061 if (mac_addr)
3062 key.type = NL80211_KEYTYPE_PAIRWISE;
3063 else
3064 key.type = NL80211_KEYTYPE_GROUP;
3065 }
3066
3067 /* for now */
3068 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3069 key.type != NL80211_KEYTYPE_GROUP)
3070 return -EINVAL;
3071
4c476991
JB		 3072 if (!rdev->ops->add_key)
3073 return -EOPNOTSUPP;
25e47c18 3074
e31b8213
JB		 3075 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3076 key.type == NL80211_KEYTYPE_PAIRWISE,
3077 mac_addr))
4c476991 3078 return -EINVAL;
41ade00f 3079
fffd0934
JB		 3080 wdev_lock(dev->ieee80211_ptr);
3081 err = nl80211_key_allowed(dev->ieee80211_ptr);
3082 if (!err)
e35e4d28
HG		 3083 err = rdev_add_key(rdev, dev, key.idx,
3084 key.type == NL80211_KEYTYPE_PAIRWISE,
3085 mac_addr, &key.p);
fffd0934 3086 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3087
41ade00f
JB		 3088 return err;
3089}
3090
3091static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3092{
4c476991 3093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3094 int err;
4c476991 3095 struct net_device *dev = info->user_ptr[1];
41ade00f 3096 u8 *mac_addr = NULL;
b9454e83 3097 struct key_parse key;
41ade00f 3098
b9454e83
JB		 3099 err = nl80211_parse_key(info, &key);
3100 if (err)
3101 return err;
41ade00f
JB		 3102
3103 if (info->attrs[NL80211_ATTR_MAC])
3104 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3105
e31b8213
JB		 3106 if (key.type == -1) {
3107 if (mac_addr)
3108 key.type = NL80211_KEYTYPE_PAIRWISE;
3109 else
3110 key.type = NL80211_KEYTYPE_GROUP;
3111 }
3112
3113 /* for now */
3114 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3115 key.type != NL80211_KEYTYPE_GROUP)
3116 return -EINVAL;
3117
4c476991
JB		 3118 if (!rdev->ops->del_key)
3119 return -EOPNOTSUPP;
41ade00f 3120
fffd0934
JB		 3121 wdev_lock(dev->ieee80211_ptr);
3122 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3123
0fa7b391 3124 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3125 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3126 err = -ENOENT;
3127
fffd0934 3128 if (!err)
e35e4d28
HG		 3129 err = rdev_del_key(rdev, dev, key.idx,
3130 key.type == NL80211_KEYTYPE_PAIRWISE,
3131 mac_addr);
41ade00f 3132
3d23e349 3133#ifdef CONFIG_CFG80211_WEXT
08645126 3134 if (!err) {
b9454e83 3135 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3136 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3137 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3138 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3139 }
3140#endif
fffd0934 3141 wdev_unlock(dev->ieee80211_ptr);
08645126 3142
41ade00f
JB		 3143 return err;
3144}
3145
77765eaf
VT		 3146/* This function returns an error or the number of nested attributes */
3147static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3148{
3149 struct nlattr *attr;
3150 int n_entries = 0, tmp;
3151
3152 nla_for_each_nested(attr, nl_attr, tmp) {
3153 if (nla_len(attr) != ETH_ALEN)
3154 return -EINVAL;
3155
3156 n_entries++;
3157 }
3158
3159 return n_entries;
3160}
3161
3162/*
3163 * This function parses ACL information and allocates memory for ACL data.
3164 * On successful return, the calling function is responsible to free the
3165 * ACL buffer returned by this function.
3166 */
3167static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3168 struct genl_info *info)
3169{
3170 enum nl80211_acl_policy acl_policy;
3171 struct nlattr *attr;
3172 struct cfg80211_acl_data *acl;
3173 int i = 0, n_entries, tmp;
3174
3175 if (!wiphy->max_acl_mac_addrs)
3176 return ERR_PTR(-EOPNOTSUPP);
3177
3178 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3179 return ERR_PTR(-EINVAL);
3180
3181 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3182 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3183 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3184 return ERR_PTR(-EINVAL);
3185
3186 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3187 return ERR_PTR(-EINVAL);
3188
3189 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3190 if (n_entries < 0)
3191 return ERR_PTR(n_entries);
3192
3193 if (n_entries > wiphy->max_acl_mac_addrs)
3194 return ERR_PTR(-ENOTSUPP);
3195
3196 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3197 GFP_KERNEL);
3198 if (!acl)
3199 return ERR_PTR(-ENOMEM);
3200
3201 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3202 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3203 i++;
3204 }
3205
3206 acl->n_acl_entries = n_entries;
3207 acl->acl_policy = acl_policy;
3208
3209 return acl;
3210}
3211
3212static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3213{
3214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3215 struct net_device *dev = info->user_ptr[1];
3216 struct cfg80211_acl_data *acl;
3217 int err;
3218
3219 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3220 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3221 return -EOPNOTSUPP;
3222
3223 if (!dev->ieee80211_ptr->beacon_interval)
3224 return -EINVAL;
3225
3226 acl = parse_acl_data(&rdev->wiphy, info);
3227 if (IS_ERR(acl))
3228 return PTR_ERR(acl);
3229
3230 err = rdev_set_mac_acl(rdev, dev, acl);
3231
3232 kfree(acl);
3233
3234 return err;
3235}
3236
a1193be8 3237static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3238 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3239{
8860020e 3240 bool haveinfo = false;
ed1b6cc7 3241
a1193be8
SW		 3242 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3243 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3244 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3245 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3246 return -EINVAL;
3247
8860020e 3248 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3249
a1193be8
SW		 3250 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3251 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3252 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3253 if (!bcn->head_len)
3254 return -EINVAL;
3255 haveinfo = true;
ed1b6cc7
JB		 3256 }
3257
a1193be8
SW		 3258 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3259 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3260 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3261 haveinfo = true;
ed1b6cc7
JB		 3262 }
3263
4c476991
JB		 3264 if (!haveinfo)
3265 return -EINVAL;
3b85875a 3266
a1193be8
SW		 3267 if (attrs[NL80211_ATTR_IE]) {
3268 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3269 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3270 }
3271
a1193be8 3272 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3273 bcn->proberesp_ies =
a1193be8 3274 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3275 bcn->proberesp_ies_len =
a1193be8 3276 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3277 }
3278
a1193be8 3279 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3280 bcn->assocresp_ies =
a1193be8 3281 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3282 bcn->assocresp_ies_len =
a1193be8 3283 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3284 }
3285
a1193be8
SW		 3286 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3287 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3288 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3289 }
3290
8860020e
JB		 3291 return 0;
3292}
3293
46c1dd0c
FF		 3294static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3295 struct cfg80211_ap_settings *params)
3296{
3297 struct wireless_dev *wdev;
3298 bool ret = false;
3299
89a54e48 3300 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3301 if (wdev->iftype != NL80211_IFTYPE_AP &&
3302 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3303 continue;
3304
683b6d3b 3305 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3306 continue;
3307
683b6d3b 3308 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3309 ret = true;
3310 break;
3311 }
3312
46c1dd0c
FF		 3313 return ret;
3314}
3315
e39e5b5e
JM		 3316static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3317 enum nl80211_auth_type auth_type,
3318 enum nl80211_commands cmd)
3319{
3320 if (auth_type > NL80211_AUTHTYPE_MAX)
3321 return false;
3322
3323 switch (cmd) {
3324 case NL80211_CMD_AUTHENTICATE:
3325 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3326 auth_type == NL80211_AUTHTYPE_SAE)
3327 return false;
3328 return true;
3329 case NL80211_CMD_CONNECT:
3330 case NL80211_CMD_START_AP:
3331 /* SAE not supported yet */
3332 if (auth_type == NL80211_AUTHTYPE_SAE)
3333 return false;
3334 return true;
3335 default:
3336 return false;
3337 }
3338}
3339
8860020e
JB		 3340static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3341{
3342 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3343 struct net_device *dev = info->user_ptr[1];
3344 struct wireless_dev *wdev = dev->ieee80211_ptr;
3345 struct cfg80211_ap_settings params;
3346 int err;
3347
3348 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3349 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3350 return -EOPNOTSUPP;
3351
3352 if (!rdev->ops->start_ap)
3353 return -EOPNOTSUPP;
3354
3355 if (wdev->beacon_interval)
3356 return -EALREADY;
3357
3358 memset(&params, 0, sizeof(params));
3359
3360 /* these are required for START_AP */
3361 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3362 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3363 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3364 return -EINVAL;
3365
a1193be8 3366 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3367 if (err)
3368 return err;
3369
3370 params.beacon_interval =
3371 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3372 params.dtim_period =
3373 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3374
3375 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3376 if (err)
3377 return err;
3378
3379 /*
3380 * In theory, some of these attributes should be required here
3381 * but since they were not used when the command was originally
3382 * added, keep them optional for old user space programs to let
3383 * them continue to work with drivers that do not need the
3384 * additional information -- drivers must check!
3385 */
3386 if (info->attrs[NL80211_ATTR_SSID]) {
3387 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3388 params.ssid_len =
3389 nla_len(info->attrs[NL80211_ATTR_SSID]);
3390 if (params.ssid_len == 0 ||
3391 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3392 return -EINVAL;
3393 }
3394
3395 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3396 params.hidden_ssid = nla_get_u32(
3397 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3398 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3399 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3400 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3401 return -EINVAL;
3402 }
3403
3404 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3405
3406 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3407 params.auth_type = nla_get_u32(
3408 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3409 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3410 NL80211_CMD_START_AP))
8860020e
JB		 3411 return -EINVAL;
3412 } else
3413 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3414
3415 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3416 NL80211_MAX_NR_CIPHER_SUITES);
3417 if (err)
3418 return err;
3419
1b658f11
VT		 3420 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3421 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3422 return -EOPNOTSUPP;
3423 params.inactivity_timeout = nla_get_u16(
3424 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3425 }
3426
53cabad7
JB		 3427 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3428 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3429 return -EINVAL;
3430 params.p2p_ctwindow =
3431 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3432 if (params.p2p_ctwindow > 127)
3433 return -EINVAL;
3434 if (params.p2p_ctwindow != 0 &&
3435 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3436 return -EINVAL;
3437 }
3438
3439 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3440 u8 tmp;
3441
3442 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3443 return -EINVAL;
3444 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3445 if (tmp > 1)
3446 return -EINVAL;
3447 params.p2p_opp_ps = tmp;
3448 if (params.p2p_opp_ps != 0 &&
3449 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3450 return -EINVAL;
3451 }
3452
aa430da4 3453 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3454 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3455 if (err)
3456 return err;
3457 } else if (wdev->preset_chandef.chan) {
3458 params.chandef = wdev->preset_chandef;
46c1dd0c 3459 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3460 return -EINVAL;
3461
923b352f
AN		 3462 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3463 wdev->iftype))
aa430da4
JB		 3464 return -EINVAL;
3465
18998c38
EP		 3466 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3467 params.smps_mode =
3468 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3469 switch (params.smps_mode) {
3470 case NL80211_SMPS_OFF:
3471 break;
3472 case NL80211_SMPS_STATIC:
3473 if (!(rdev->wiphy.features &
3474 NL80211_FEATURE_STATIC_SMPS))
3475 return -EINVAL;
3476 break;
3477 case NL80211_SMPS_DYNAMIC:
3478 if (!(rdev->wiphy.features &
3479 NL80211_FEATURE_DYNAMIC_SMPS))
3480 return -EINVAL;
3481 break;
3482 default:
3483 return -EINVAL;
3484 }
3485 } else {
3486 params.smps_mode = NL80211_SMPS_OFF;
3487 }
3488
4baf6bea
OO		 3489 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3490 params.acl = parse_acl_data(&rdev->wiphy, info);
3491 if (IS_ERR(params.acl))
3492 return PTR_ERR(params.acl);
3493 }
3494
34d50519
LD		 3495 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3496 if (params.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ])
3497 return -EOPNOTSUPP;
3498
c56589ed 3499 wdev_lock(wdev);
e35e4d28 3500 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3501 if (!err) {
683b6d3b 3502 wdev->preset_chandef = params.chandef;
8860020e 3503 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3504 wdev->chandef = params.chandef;
06e191e2
AQ		 3505 wdev->ssid_len = params.ssid_len;
3506 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3507 }
c56589ed 3508 wdev_unlock(wdev);
77765eaf
VT		 3509
3510 kfree(params.acl);
3511
56d1893d 3512 return err;
ed1b6cc7
JB		 3513}
3514
8860020e
JB		 3515static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3516{
3517 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3518 struct net_device *dev = info->user_ptr[1];
3519 struct wireless_dev *wdev = dev->ieee80211_ptr;
3520 struct cfg80211_beacon_data params;
3521 int err;
3522
3523 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3524 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3525 return -EOPNOTSUPP;
3526
3527 if (!rdev->ops->change_beacon)
3528 return -EOPNOTSUPP;
3529
3530 if (!wdev->beacon_interval)
3531 return -EINVAL;
3532
a1193be8 3533 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3534 if (err)
3535 return err;
3536
c56589ed
SW		 3537 wdev_lock(wdev);
3538 err = rdev_change_beacon(rdev, dev, &params);
3539 wdev_unlock(wdev);
3540
3541 return err;
8860020e
JB		 3542}
3543
3544static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3545{
4c476991
JB		 3546 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3547 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3548
7c8d5e03 3549 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3550}
3551
5727ef1b
JB		 3552static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3553 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3554 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3555 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3556 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3557 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3558 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3559};
3560
eccb8e8f 3561static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3562 enum nl80211_iftype iftype,
eccb8e8f 3563 struct station_parameters *params)
5727ef1b
JB		 3564{
3565 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3566 struct nlattr *nla;
5727ef1b
JB		 3567 int flag;
3568
eccb8e8f
JB		 3569 /*
3570 * Try parsing the new attribute first so userspace
3571 * can specify both for older kernels.
3572 */
3573 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3574 if (nla) {
3575 struct nl80211_sta_flag_update *sta_flags;
3576
3577 sta_flags = nla_data(nla);
3578 params->sta_flags_mask = sta_flags->mask;
3579 params->sta_flags_set = sta_flags->set;
77ee7c89 3580 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3581 if ((params->sta_flags_mask |
3582 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3583 return -EINVAL;
3584 return 0;
3585 }
3586
3587 /* if present, parse the old attribute */
5727ef1b 3588
eccb8e8f 3589 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3590 if (!nla)
3591 return 0;
3592
3593 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3594 nla, sta_flags_policy))
3595 return -EINVAL;
3596
bdd3ae3d
JB		 3597 /*
3598 * Only allow certain flags for interface types so that
3599 * other attributes are silently ignored. Remember that
3600 * this is backward compatibility code with old userspace
3601 * and shouldn't be hit in other cases anyway.
3602 */
3603 switch (iftype) {
3604 case NL80211_IFTYPE_AP:
3605 case NL80211_IFTYPE_AP_VLAN:
3606 case NL80211_IFTYPE_P2P_GO:
3607 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3608 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3609 BIT(NL80211_STA_FLAG_WME) |
3610 BIT(NL80211_STA_FLAG_MFP);
3611 break;
3612 case NL80211_IFTYPE_P2P_CLIENT:
3613 case NL80211_IFTYPE_STATION:
3614 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3615 BIT(NL80211_STA_FLAG_TDLS_PEER);
3616 break;
3617 case NL80211_IFTYPE_MESH_POINT:
3618 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3619 BIT(NL80211_STA_FLAG_MFP) |
3620 BIT(NL80211_STA_FLAG_AUTHORIZED);
3621 default:
3622 return -EINVAL;
3623 }
5727ef1b 3624
3383b5a6
JB		 3625 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3626 if (flags[flag]) {
eccb8e8f 3627 params->sta_flags_set |= (1<<flag);
5727ef1b 3628
3383b5a6
JB		 3629 /* no longer support new API additions in old API */
3630 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3631 return -EINVAL;
3632 }
3633 }
3634
5727ef1b
JB		 3635 return 0;
3636}
3637
c8dcfd8a
FF		 3638static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3639 int attr)
3640{
3641 struct nlattr *rate;
8eb41c8d
VK		 3642 u32 bitrate;
3643 u16 bitrate_compat;
b51f3bee 3644 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3645
3646 rate = nla_nest_start(msg, attr);
3647 if (!rate)
db9c64cf 3648 return false;
c8dcfd8a
FF		 3649
3650 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3651 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3652 /* report 16-bit bitrate only if we can */
3653 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3654 if (bitrate > 0 &&
3655 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3656 return false;
3657 if (bitrate_compat > 0 &&
3658 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3659 return false;
3660
b51f3bee
JB		 3661 switch (info->bw) {
3662 case RATE_INFO_BW_5:
3663 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3664 break;
3665 case RATE_INFO_BW_10:
3666 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3667 break;
3668 default:
3669 WARN_ON(1);
3670 /* fall through */
3671 case RATE_INFO_BW_20:
3672 rate_flg = 0;
3673 break;
3674 case RATE_INFO_BW_40:
3675 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3676 break;
3677 case RATE_INFO_BW_80:
3678 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3679 break;
3680 case RATE_INFO_BW_160:
3681 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3682 break;
3683 }
3684
3685 if (rate_flg && nla_put_flag(msg, rate_flg))
3686 return false;
3687
db9c64cf
JB		 3688 if (info->flags & RATE_INFO_FLAGS_MCS) {
3689 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3690 return false;
db9c64cf
JB		 3691 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3692 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3693 return false;
3694 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3695 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3696 return false;
3697 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3698 return false;
db9c64cf
JB		 3699 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3700 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3701 return false;
3702 }
c8dcfd8a
FF		 3703
3704 nla_nest_end(msg, rate);
3705 return true;
c8dcfd8a
FF		 3706}
3707
119363c7
FF		 3708static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3709 int id)
3710{
3711 void *attr;
3712 int i = 0;
3713
3714 if (!mask)
3715 return true;
3716
3717 attr = nla_nest_start(msg, id);
3718 if (!attr)
3719 return false;
3720
3721 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3722 if (!(mask & BIT(i)))
3723 continue;
3724
3725 if (nla_put_u8(msg, i, signal[i]))
3726 return false;
3727 }
3728
3729 nla_nest_end(msg, attr);
3730
3731 return true;
3732}
3733
cf5ead82
JB		 3734static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3735 u32 seq, int flags,
66266b3a
JL		 3736 struct cfg80211_registered_device *rdev,
3737 struct net_device *dev,
98b62183 3738 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3739{
3740 void *hdr;
f4263c98 3741 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3742
cf5ead82 3743 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3744 if (!hdr)
3745 return -1;
3746
9360ffd1
DM		 3747 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3748 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3749 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3750 goto nla_put_failure;
f5ea9120 3751
2ec600d6
LCC		 3752 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3753 if (!sinfoattr)
fd5b74dc 3754 goto nla_put_failure;
319090bf
JB		 3755
3756#define PUT_SINFO(attr, memb, type) do { \
3757 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3758 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3759 sinfo->memb)) \
3760 goto nla_put_failure; \
3761 } while (0)
3762
3763 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3764 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3765
3766 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3767 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3768 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3769 (u32)sinfo->rx_bytes))
9360ffd1 3770 goto nla_put_failure;
319090bf
JB		 3771
3772 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3773 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3774 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3775 (u32)sinfo->tx_bytes))
3776 goto nla_put_failure;
319090bf
JB		 3777
3778 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3779 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3780 PUT_SINFO(LLID, llid, u16);
3781 PUT_SINFO(PLID, plid, u16);
3782 PUT_SINFO(PLINK_STATE, plink_state, u8);
3783
66266b3a
JL		 3784 switch (rdev->wiphy.signal_type) {
3785 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3786 PUT_SINFO(SIGNAL, signal, u8);
3787 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3788 break;
3789 default:
3790 break;
3791 }
319090bf 3792 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3793 if (!nl80211_put_signal(msg, sinfo->chains,
3794 sinfo->chain_signal,
3795 NL80211_STA_INFO_CHAIN_SIGNAL))
3796 goto nla_put_failure;
3797 }
319090bf 3798 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3799 if (!nl80211_put_signal(msg, sinfo->chains,
3800 sinfo->chain_signal_avg,
3801 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3802 goto nla_put_failure;
3803 }
319090bf 3804 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3805 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3806 NL80211_STA_INFO_TX_BITRATE))
3807 goto nla_put_failure;
3808 }
319090bf 3809 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3810 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3811 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3812 goto nla_put_failure;
420e7fab 3813 }
319090bf
JB		 3814
3815 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3816 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3817 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3818 PUT_SINFO(TX_FAILED, tx_failed, u32);
3819 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3820 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3821 PUT_SINFO(LOCAL_PM, local_pm, u32);
3822 PUT_SINFO(PEER_PM, peer_pm, u32);
3823 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3824
3825 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3826 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3827 if (!bss_param)
3828 goto nla_put_failure;
3829
9360ffd1
DM		 3830 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3831 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3832 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3833 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3834 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3835 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3836 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3837 sinfo->bss_param.dtim_period) ||
3838 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3839 sinfo->bss_param.beacon_interval))
3840 goto nla_put_failure;
f4263c98
PS		 3841
3842 nla_nest_end(msg, bss_param);
3843 }
319090bf 3844 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3845 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3846 sizeof(struct nl80211_sta_flag_update),
3847 &sinfo->sta_flags))
3848 goto nla_put_failure;
319090bf
JB		 3849
3850 PUT_SINFO(T_OFFSET, t_offset, u64);
3851 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
a76b1942
JB		 3852 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3853 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3854
3855#undef PUT_SINFO
6de39808
JB		 3856
3857 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3858 struct nlattr *tidsattr;
3859 int tid;
3860
3861 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3862 if (!tidsattr)
3863 goto nla_put_failure;
3864
3865 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3866 struct cfg80211_tid_stats *tidstats;
3867 struct nlattr *tidattr;
3868
3869 tidstats = &sinfo->pertid[tid];
3870
3871 if (!tidstats->filled)
3872 continue;
3873
3874 tidattr = nla_nest_start(msg, tid + 1);
3875 if (!tidattr)
3876 goto nla_put_failure;
3877
3878#define PUT_TIDVAL(attr, memb, type) do { \
3879 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3880 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3881 tidstats->memb)) \
3882 goto nla_put_failure; \
3883 } while (0)
3884
3885 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3886 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3887 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3888 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3889
3890#undef PUT_TIDVAL
3891 nla_nest_end(msg, tidattr);
3892 }
3893
3894 nla_nest_end(msg, tidsattr);
3895 }
3896
2ec600d6 3897 nla_nest_end(msg, sinfoattr);
fd5b74dc 3898
319090bf 3899 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3900 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3901 sinfo->assoc_req_ies))
3902 goto nla_put_failure;
50d3dfb7 3903
053c095a
JB		 3904 genlmsg_end(msg, hdr);
3905 return 0;
fd5b74dc
JB		 3906
3907 nla_put_failure:
bc3ed28c
TG		 3908 genlmsg_cancel(msg, hdr);
3909 return -EMSGSIZE;
fd5b74dc
JB		 3910}
3911
2ec600d6 3912static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3913 struct netlink_callback *cb)
2ec600d6 3914{
2ec600d6 3915 struct station_info sinfo;
1b8ec87a 3916 struct cfg80211_registered_device *rdev;
97990a06 3917 struct wireless_dev *wdev;
2ec600d6 3918 u8 mac_addr[ETH_ALEN];
97990a06 3919 int sta_idx = cb->args[2];
2ec600d6 3920 int err;
2ec600d6 3921
1b8ec87a 3922 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3923 if (err)
3924 return err;
bba95fef 3925
97990a06
JB		 3926 if (!wdev->netdev) {
3927 err = -EINVAL;
3928 goto out_err;
3929 }
3930
1b8ec87a 3931 if (!rdev->ops->dump_station) {
eec60b03 3932 err = -EOPNOTSUPP;
bba95fef
JB		 3933 goto out_err;
3934 }
3935
bba95fef 3936 while (1) {
f612cedf 3937 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3938 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3939 mac_addr, &sinfo);
bba95fef
JB		 3940 if (err == -ENOENT)
3941 break;
3942 if (err)
3b85875a 3943 goto out_err;
bba95fef 3944
cf5ead82 3945 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3946 NETLINK_CB(cb->skb).portid,
bba95fef 3947 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3948 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3949 &sinfo) < 0)
3950 goto out;
3951
3952 sta_idx++;
3953 }
3954
3955
3956 out:
97990a06 3957 cb->args[2] = sta_idx;
bba95fef 3958 err = skb->len;
bba95fef 3959 out_err:
1b8ec87a 3960 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3961
3962 return err;
2ec600d6 3963}
fd5b74dc 3964
5727ef1b
JB		 3965static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3966{
4c476991
JB		 3967 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3968 struct net_device *dev = info->user_ptr[1];
2ec600d6 3969 struct station_info sinfo;
fd5b74dc
JB		 3970 struct sk_buff *msg;
3971 u8 *mac_addr = NULL;
4c476991 3972 int err;
fd5b74dc 3973
2ec600d6 3974 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3975
3976 if (!info->attrs[NL80211_ATTR_MAC])
3977 return -EINVAL;
3978
3979 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3980
4c476991
JB		 3981 if (!rdev->ops->get_station)
3982 return -EOPNOTSUPP;
3b85875a 3983
e35e4d28 3984 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3985 if (err)
4c476991 3986 return err;
2ec600d6 3987
fd2120ca 3988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3989 if (!msg)
4c476991 3990 return -ENOMEM;
fd5b74dc 3991
cf5ead82
JB		 3992 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3993 info->snd_portid, info->snd_seq, 0,
66266b3a 3994 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3995 nlmsg_free(msg);
3996 return -ENOBUFS;
3997 }
3b85875a 3998
4c476991 3999 return genlmsg_reply(msg, info);
5727ef1b
JB		 4000}
4001
77ee7c89
JB		 4002int cfg80211_check_station_change(struct wiphy *wiphy,
4003 struct station_parameters *params,
4004 enum cfg80211_station_type statype)
4005{
e4208427
AB		 4006 if (params->listen_interval != -1 &&
4007 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 4008 return -EINVAL;
e4208427 4009
17b94247
AB		 4010 if (params->support_p2p_ps != -1 &&
4011 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4012 return -EINVAL;
4013
c72e1140 4014 if (params->aid &&
e4208427
AB		 4015 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4016 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 4017 return -EINVAL;
4018
4019 /* When you run into this, adjust the code below for the new flag */
4020 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4021
4022 switch (statype) {
eef941e6
TP		 4023 case CFG80211_STA_MESH_PEER_KERNEL:
4024 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4025 /*
4026 * No ignoring the TDLS flag here -- the userspace mesh
4027 * code doesn't have the bug of including TDLS in the
4028 * mask everywhere.
4029 */
4030 if (params->sta_flags_mask &
4031 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4032 BIT(NL80211_STA_FLAG_MFP) |
4033 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4034 return -EINVAL;
4035 break;
4036 case CFG80211_STA_TDLS_PEER_SETUP:
4037 case CFG80211_STA_TDLS_PEER_ACTIVE:
4038 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4039 return -EINVAL;
4040 /* ignore since it can't change */
4041 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4042 break;
4043 default:
4044 /* disallow mesh-specific things */
4045 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4046 return -EINVAL;
4047 if (params->local_pm)
4048 return -EINVAL;
4049 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4050 return -EINVAL;
4051 }
4052
4053 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4054 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4055 /* TDLS can't be set, ... */
4056 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4057 return -EINVAL;
4058 /*
4059 * ... but don't bother the driver with it. This works around
4060 * a hostapd/wpa_supplicant issue -- it always includes the
4061 * TLDS_PEER flag in the mask even for AP mode.
4062 */
4063 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4064 }
4065
47edb11b
AB		 4066 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4067 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4068 /* reject other things that can't change */
4069 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4070 return -EINVAL;
4071 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4072 return -EINVAL;
4073 if (params->supported_rates)
4074 return -EINVAL;
4075 if (params->ext_capab || params->ht_capa || params->vht_capa)
4076 return -EINVAL;
4077 }
4078
47edb11b
AB		 4079 if (statype != CFG80211_STA_AP_CLIENT &&
4080 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4081 if (params->vlan)
4082 return -EINVAL;
4083 }
4084
4085 switch (statype) {
4086 case CFG80211_STA_AP_MLME_CLIENT:
4087 /* Use this only for authorizing/unauthorizing a station */
4088 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4089 return -EOPNOTSUPP;
4090 break;
4091 case CFG80211_STA_AP_CLIENT:
47edb11b 4092 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4093 /* accept only the listed bits */
4094 if (params->sta_flags_mask &
4095 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4096 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4097 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4098 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4099 BIT(NL80211_STA_FLAG_WME) |
4100 BIT(NL80211_STA_FLAG_MFP)))
4101 return -EINVAL;
4102
4103 /* but authenticated/associated only if driver handles it */
4104 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4105 params->sta_flags_mask &
4106 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4107 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4108 return -EINVAL;
4109 break;
4110 case CFG80211_STA_IBSS:
4111 case CFG80211_STA_AP_STA:
4112 /* reject any changes other than AUTHORIZED */
4113 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4114 return -EINVAL;
4115 break;
4116 case CFG80211_STA_TDLS_PEER_SETUP:
4117 /* reject any changes other than AUTHORIZED or WME */
4118 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4119 BIT(NL80211_STA_FLAG_WME)))
4120 return -EINVAL;
4121 /* force (at least) rates when authorizing */
4122 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4123 !params->supported_rates)
4124 return -EINVAL;
4125 break;
4126 case CFG80211_STA_TDLS_PEER_ACTIVE:
4127 /* reject any changes */
4128 return -EINVAL;
eef941e6 4129 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4130 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4131 return -EINVAL;
4132 break;
eef941e6 4133 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4134 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4135 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4136 return -EINVAL;
4137 break;
4138 }
4139
4140 return 0;
4141}
4142EXPORT_SYMBOL(cfg80211_check_station_change);
4143
5727ef1b 4144/*
c258d2de 4145 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4146 */
80b99899
JB		 4147static struct net_device *get_vlan(struct genl_info *info,
4148 struct cfg80211_registered_device *rdev)
5727ef1b 4149{
463d0183 4150 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4151 struct net_device *v;
4152 int ret;
4153
4154 if (!vlanattr)
4155 return NULL;
4156
4157 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4158 if (!v)
4159 return ERR_PTR(-ENODEV);
4160
4161 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4162 ret = -EINVAL;
4163 goto error;
5727ef1b 4164 }
80b99899 4165
77ee7c89
JB		 4166 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4167 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4168 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4169 ret = -EINVAL;
4170 goto error;
4171 }
4172
80b99899
JB		 4173 if (!netif_running(v)) {
4174 ret = -ENETDOWN;
4175 goto error;
4176 }
4177
4178 return v;
4179 error:
4180 dev_put(v);
4181 return ERR_PTR(ret);
5727ef1b
JB		 4182}
4183
94e860f1
JB		 4184static const struct nla_policy
4185nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4186 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4187 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4188};
4189
ff276691
JB		 4190static int nl80211_parse_sta_wme(struct genl_info *info,
4191 struct station_parameters *params)
df881293 4192{
df881293
JM		 4193 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4194 struct nlattr *nla;
4195 int err;
4196
df881293
JM		 4197 /* parse WME attributes if present */
4198 if (!info->attrs[NL80211_ATTR_STA_WME])
4199 return 0;
4200
4201 nla = info->attrs[NL80211_ATTR_STA_WME];
4202 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4203 nl80211_sta_wme_policy);
4204 if (err)
4205 return err;
4206
4207 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4208 params->uapsd_queues = nla_get_u8(
4209 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4210 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4211 return -EINVAL;
4212
4213 if (tb[NL80211_STA_WME_MAX_SP])
4214 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4215
4216 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4217 return -EINVAL;
4218
4219 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4220
4221 return 0;
4222}
4223
c01fc9ad
SD		 4224static int nl80211_parse_sta_channel_info(struct genl_info *info,
4225 struct station_parameters *params)
4226{
4227 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4228 params->supported_channels =
4229 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4230 params->supported_channels_len =
4231 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4232 /*
4233 * Need to include at least one (first channel, number of
4234 * channels) tuple for each subband, and must have proper
4235 * tuples for the rest of the data as well.
4236 */
4237 if (params->supported_channels_len < 2)
4238 return -EINVAL;
4239 if (params->supported_channels_len % 2)
4240 return -EINVAL;
4241 }
4242
4243 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4244 params->supported_oper_classes =
4245 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4246 params->supported_oper_classes_len =
4247 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4248 /*
4249 * The value of the Length field of the Supported Operating
4250 * Classes element is between 2 and 253.
4251 */
4252 if (params->supported_oper_classes_len < 2 ||
4253 params->supported_oper_classes_len > 253)
4254 return -EINVAL;
4255 }
4256 return 0;
4257}
4258
ff276691
JB		 4259static int nl80211_set_station_tdls(struct genl_info *info,
4260 struct station_parameters *params)
4261{
c01fc9ad 4262 int err;
ff276691 4263 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4264 if (info->attrs[NL80211_ATTR_PEER_AID])
4265 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4266 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4267 params->ht_capa =
4268 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4269 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4270 params->vht_capa =
4271 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4272
c01fc9ad
SD		 4273 err = nl80211_parse_sta_channel_info(info, params);
4274 if (err)
4275 return err;
4276
ff276691
JB		 4277 return nl80211_parse_sta_wme(info, params);
4278}
4279
5727ef1b
JB		 4280static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4281{
4c476991 4282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4283 struct net_device *dev = info->user_ptr[1];
5727ef1b 4284 struct station_parameters params;
77ee7c89
JB		 4285 u8 *mac_addr;
4286 int err;
5727ef1b
JB		 4287
4288 memset(&params, 0, sizeof(params));
4289
77ee7c89
JB		 4290 if (!rdev->ops->change_station)
4291 return -EOPNOTSUPP;
4292
e4208427
AB		 4293 /*
4294 * AID and listen_interval properties can be set only for unassociated
4295 * station. Include these parameters here and will check them in
4296 * cfg80211_check_station_change().
4297 */
a9bc31e4
AB		 4298 if (info->attrs[NL80211_ATTR_STA_AID])
4299 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4300
4301 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4302 params.listen_interval =
4303 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4304 else
4305 params.listen_interval = -1;
5727ef1b 4306
17b94247
AB		 4307 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4308 u8 tmp;
4309
4310 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4311 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4312 return -EINVAL;
4313
4314 params.support_p2p_ps = tmp;
4315 } else {
4316 params.support_p2p_ps = -1;
4317 }
4318
5727ef1b
JB		 4319 if (!info->attrs[NL80211_ATTR_MAC])
4320 return -EINVAL;
4321
4322 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4323
4324 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4325 params.supported_rates =
4326 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4327 params.supported_rates_len =
4328 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4329 }
4330
9d62a986
JM		 4331 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4332 params.capability =
4333 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4334 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4335 }
4336
4337 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4338 params.ext_capab =
4339 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4340 params.ext_capab_len =
4341 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4342 }
4343
bdd3ae3d 4344 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4345 return -EINVAL;
4346
f8bacc21 4347 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4348 params.plink_action =
f8bacc21
JB		 4349 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4350 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4351 return -EINVAL;
4352 }
2ec600d6 4353
f8bacc21 4354 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4355 params.plink_state =
f8bacc21
JB		 4356 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4357 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4358 return -EINVAL;
4359 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4360 }
9c3990aa 4361
3b1c5a53
MP		 4362 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4363 enum nl80211_mesh_power_mode pm = nla_get_u32(
4364 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4365
4366 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4367 pm > NL80211_MESH_POWER_MAX)
4368 return -EINVAL;
4369
4370 params.local_pm = pm;
4371 }
4372
77ee7c89
JB		 4373 /* Include parameters for TDLS peer (will check later) */
4374 err = nl80211_set_station_tdls(info, &params);
4375 if (err)
4376 return err;
4377
4378 params.vlan = get_vlan(info, rdev);
4379 if (IS_ERR(params.vlan))
4380 return PTR_ERR(params.vlan);
4381
a97f4424
JB		 4382 switch (dev->ieee80211_ptr->iftype) {
4383 case NL80211_IFTYPE_AP:
4384 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4385 case NL80211_IFTYPE_P2P_GO:
074ac8df 4386 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4387 case NL80211_IFTYPE_STATION:
267335d6 4388 case NL80211_IFTYPE_ADHOC:
a97f4424 4389 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4390 break;
4391 default:
77ee7c89
JB		 4392 err = -EOPNOTSUPP;
4393 goto out_put_vlan;
034d655e
JB		 4394 }
4395
77ee7c89 4396 /* driver will call cfg80211_check_station_change() */
e35e4d28 4397 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4398
77ee7c89 4399 out_put_vlan:
5727ef1b
JB		 4400 if (params.vlan)
4401 dev_put(params.vlan);
3b85875a 4402
5727ef1b
JB		 4403 return err;
4404}
4405
4406static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4407{
4c476991 4408 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4409 int err;
4c476991 4410 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4411 struct station_parameters params;
4412 u8 *mac_addr = NULL;
bda95eb1
JB		 4413 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4414 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4415
4416 memset(&params, 0, sizeof(params));
4417
984c311b
JB		 4418 if (!rdev->ops->add_station)
4419 return -EOPNOTSUPP;
4420
5727ef1b
JB		 4421 if (!info->attrs[NL80211_ATTR_MAC])
4422 return -EINVAL;
4423
5727ef1b
JB		 4424 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4425 return -EINVAL;
4426
4427 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4428 return -EINVAL;
4429
5e4b6f56
JM		 4430 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4431 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4432 return -EINVAL;
4433
5727ef1b
JB		 4434 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4435 params.supported_rates =
4436 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4437 params.supported_rates_len =
4438 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4439 params.listen_interval =
4440 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4441
17b94247
AB		 4442 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4443 u8 tmp;
4444
4445 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4446 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4447 return -EINVAL;
4448
4449 params.support_p2p_ps = tmp;
4450 } else {
4451 /*
4452 * if not specified, assume it's supported for P2P GO interface,
4453 * and is NOT supported for AP interface
4454 */
4455 params.support_p2p_ps =
4456 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4457 }
4458
3d124ea2 4459 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4460 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4461 else
4462 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4463 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4464 return -EINVAL;
51b50fbe 4465
9d62a986
JM		 4466 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4467 params.capability =
4468 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4469 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4470 }
4471
4472 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4473 params.ext_capab =
4474 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4475 params.ext_capab_len =
4476 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4477 }
4478
36aedc90
JM		 4479 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4480 params.ht_capa =
4481 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4482
f461be3e
MP		 4483 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4484 params.vht_capa =
4485 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4486
60f4a7b1
MK		 4487 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4488 params.opmode_notif_used = true;
4489 params.opmode_notif =
4490 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4491 }
4492
f8bacc21 4493 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4494 params.plink_action =
f8bacc21
JB		 4495 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4496 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4497 return -EINVAL;
4498 }
96b78dff 4499
c01fc9ad
SD		 4500 err = nl80211_parse_sta_channel_info(info, &params);
4501 if (err)
4502 return err;
4503
ff276691
JB		 4504 err = nl80211_parse_sta_wme(info, &params);
4505 if (err)
4506 return err;
bdd90d5e 4507
bdd3ae3d 4508 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4509 return -EINVAL;
4510
496fcc29
JB		 4511 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4512 * as userspace might just pass through the capabilities from the IEs
4513 * directly, rather than enforcing this restriction and returning an
4514 * error in this case.
4515 */
4516 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4517 params.ht_capa = NULL;
4518 params.vht_capa = NULL;
4519 }
4520
77ee7c89
JB		 4521 /* When you run into this, adjust the code below for the new flag */
4522 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4523
bdd90d5e
JB		 4524 switch (dev->ieee80211_ptr->iftype) {
4525 case NL80211_IFTYPE_AP:
4526 case NL80211_IFTYPE_AP_VLAN:
4527 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4528 /* ignore WME attributes if iface/sta is not capable */
4529 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4530 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4531 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4532
bdd90d5e 4533 /* TDLS peers cannot be added */
3d124ea2
JM		 4534 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4535 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4536 return -EINVAL;
bdd90d5e
JB		 4537 /* but don't bother the driver with it */
4538 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4539
d582cffb
JB		 4540 /* allow authenticated/associated only if driver handles it */
4541 if (!(rdev->wiphy.features &
4542 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 4543 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 4544 return -EINVAL;
4545
bda95eb1
JB		 4546 /* Older userspace, or userspace wanting to be compatible with
4547 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4548 * and assoc flags in the mask, but assumes the station will be
4549 * added as associated anyway since this was the required driver
4550 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4551 * introduced.
4552 * In order to not bother drivers with this quirk in the API
4553 * set the flags in both the mask and set for new stations in
4554 * this case.
4555 */
4556 if (!(params.sta_flags_mask & auth_assoc)) {
4557 params.sta_flags_mask |= auth_assoc;
4558 params.sta_flags_set |= auth_assoc;
4559 }
4560
bdd90d5e
JB		 4561 /* must be last in here for error handling */
4562 params.vlan = get_vlan(info, rdev);
4563 if (IS_ERR(params.vlan))
4564 return PTR_ERR(params.vlan);
4565 break;
4566 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4567 /* ignore uAPSD data */
4568 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4569
d582cffb
JB		 4570 /* associated is disallowed */
4571 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4572 return -EINVAL;
bdd90d5e 4573 /* TDLS peers cannot be added */
3d124ea2
JM		 4574 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4575 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4576 return -EINVAL;
4577 break;
4578 case NL80211_IFTYPE_STATION:
93d08f0b 4579 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4580 /* ignore uAPSD data */
4581 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4582
77ee7c89
JB		 4583 /* these are disallowed */
4584 if (params.sta_flags_mask &
4585 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4586 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4587 return -EINVAL;
bdd90d5e
JB		 4588 /* Only TDLS peers can be added */
4589 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4590 return -EINVAL;
4591 /* Can only add if TDLS ... */
4592 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4593 return -EOPNOTSUPP;
4594 /* ... with external setup is supported */
4595 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4596 return -EOPNOTSUPP;
77ee7c89
JB		 4597 /*
4598 * Older wpa_supplicant versions always mark the TDLS peer
4599 * as authorized, but it shouldn't yet be.
4600 */
4601 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4602 break;
4603 default:
4604 return -EOPNOTSUPP;
c75786c9
EP		 4605 }
4606
bdd90d5e 4607 /* be aware of params.vlan when changing code here */
5727ef1b 4608
e35e4d28 4609 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4610
5727ef1b
JB		 4611 if (params.vlan)
4612 dev_put(params.vlan);
5727ef1b
JB		 4613 return err;
4614}
4615
4616static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4617{
4c476991
JB		 4618 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4619 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4620 struct station_del_parameters params;
4621
4622 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4623
4624 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4625 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4626
e80cf853 4627 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4628 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4629 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4630 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4631 return -EINVAL;
5727ef1b 4632
4c476991
JB		 4633 if (!rdev->ops->del_station)
4634 return -EOPNOTSUPP;
3b85875a 4635
98856866
JM		 4636 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4637 params.subtype =
4638 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4639 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4640 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4641 return -EINVAL;
4642 } else {
4643 /* Default to Deauthentication frame */
4644 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4645 }
4646
4647 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4648 params.reason_code =
4649 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4650 if (params.reason_code == 0)
4651 return -EINVAL; /* 0 is reserved */
4652 } else {
4653 /* Default to reason code 2 */
4654 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4655 }
4656
89c771e5 4657 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4658}
4659
15e47304 4660static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4661 int flags, struct net_device *dev,
4662 u8 *dst, u8 *next_hop,
4663 struct mpath_info *pinfo)
4664{
4665 void *hdr;
4666 struct nlattr *pinfoattr;
4667
1ef4c850 4668 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4669 if (!hdr)
4670 return -1;
4671
9360ffd1
DM		 4672 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4673 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4674 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4675 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4676 goto nla_put_failure;
f5ea9120 4677
2ec600d6
LCC		 4678 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4679 if (!pinfoattr)
4680 goto nla_put_failure;
9360ffd1
DM		 4681 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4682 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4683 pinfo->frame_qlen))
4684 goto nla_put_failure;
4685 if (((pinfo->filled & MPATH_INFO_SN) &&
4686 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4687 ((pinfo->filled & MPATH_INFO_METRIC) &&
4688 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4689 pinfo->metric)) ||
4690 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4691 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4692 pinfo->exptime)) ||
4693 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4694 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4695 pinfo->flags)) ||
4696 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4697 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4698 pinfo->discovery_timeout)) ||
4699 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4700 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4701 pinfo->discovery_retries)))
4702 goto nla_put_failure;
2ec600d6
LCC		 4703
4704 nla_nest_end(msg, pinfoattr);
4705
053c095a
JB		 4706 genlmsg_end(msg, hdr);
4707 return 0;
2ec600d6
LCC		 4708
4709 nla_put_failure:
bc3ed28c
TG		 4710 genlmsg_cancel(msg, hdr);
4711 return -EMSGSIZE;
2ec600d6
LCC		 4712}
4713
4714static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4715 struct netlink_callback *cb)
2ec600d6 4716{
2ec600d6 4717 struct mpath_info pinfo;
1b8ec87a 4718 struct cfg80211_registered_device *rdev;
97990a06 4719 struct wireless_dev *wdev;
2ec600d6
LCC		 4720 u8 dst[ETH_ALEN];
4721 u8 next_hop[ETH_ALEN];
97990a06 4722 int path_idx = cb->args[2];
2ec600d6 4723 int err;
2ec600d6 4724
1b8ec87a 4725 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4726 if (err)
4727 return err;
bba95fef 4728
1b8ec87a 4729 if (!rdev->ops->dump_mpath) {
eec60b03 4730 err = -EOPNOTSUPP;
bba95fef
JB		 4731 goto out_err;
4732 }
4733
97990a06 4734 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4735 err = -EOPNOTSUPP;
0448b5fc 4736 goto out_err;
eec60b03
JM		 4737 }
4738
bba95fef 4739 while (1) {
1b8ec87a 4740 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4741 next_hop, &pinfo);
bba95fef 4742 if (err == -ENOENT)
2ec600d6 4743 break;
bba95fef 4744 if (err)
3b85875a 4745 goto out_err;
2ec600d6 4746
15e47304 4747 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4748 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4749 wdev->netdev, dst, next_hop,
bba95fef
JB		 4750 &pinfo) < 0)
4751 goto out;
2ec600d6 4752
bba95fef 4753 path_idx++;
2ec600d6 4754 }
2ec600d6 4755
2ec600d6 4756
bba95fef 4757 out:
97990a06 4758 cb->args[2] = path_idx;
bba95fef 4759 err = skb->len;
bba95fef 4760 out_err:
1b8ec87a 4761 nl80211_finish_wdev_dump(rdev);
bba95fef 4762 return err;
2ec600d6
LCC		 4763}
4764
4765static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4766{
4c476991 4767 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4768 int err;
4c476991 4769 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4770 struct mpath_info pinfo;
4771 struct sk_buff *msg;
4772 u8 *dst = NULL;
4773 u8 next_hop[ETH_ALEN];
4774
4775 memset(&pinfo, 0, sizeof(pinfo));
4776
4777 if (!info->attrs[NL80211_ATTR_MAC])
4778 return -EINVAL;
4779
4780 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4781
4c476991
JB		 4782 if (!rdev->ops->get_mpath)
4783 return -EOPNOTSUPP;
2ec600d6 4784
4c476991
JB		 4785 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4786 return -EOPNOTSUPP;
eec60b03 4787
e35e4d28 4788 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4789 if (err)
4c476991 4790 return err;
2ec600d6 4791
fd2120ca 4792 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4793 if (!msg)
4c476991 4794 return -ENOMEM;
2ec600d6 4795
15e47304 4796 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4797 dev, dst, next_hop, &pinfo) < 0) {
4798 nlmsg_free(msg);
4799 return -ENOBUFS;
4800 }
3b85875a 4801
4c476991 4802 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4803}
4804
4805static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4806{
4c476991
JB		 4807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4808 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4809 u8 *dst = NULL;
4810 u8 *next_hop = NULL;
4811
4812 if (!info->attrs[NL80211_ATTR_MAC])
4813 return -EINVAL;
4814
4815 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4816 return -EINVAL;
4817
4818 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4819 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4820
4c476991
JB		 4821 if (!rdev->ops->change_mpath)
4822 return -EOPNOTSUPP;
35a8efe1 4823
4c476991
JB		 4824 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4825 return -EOPNOTSUPP;
2ec600d6 4826
e35e4d28 4827 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4828}
4c476991 4829
2ec600d6
LCC		 4830static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4831{
4c476991
JB		 4832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4833 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4834 u8 *dst = NULL;
4835 u8 *next_hop = NULL;
4836
4837 if (!info->attrs[NL80211_ATTR_MAC])
4838 return -EINVAL;
4839
4840 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4841 return -EINVAL;
4842
4843 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4844 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4845
4c476991
JB		 4846 if (!rdev->ops->add_mpath)
4847 return -EOPNOTSUPP;
35a8efe1 4848
4c476991
JB		 4849 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4850 return -EOPNOTSUPP;
2ec600d6 4851
e35e4d28 4852 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4853}
4854
4855static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4856{
4c476991
JB		 4857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4858 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4859 u8 *dst = NULL;
4860
4861 if (info->attrs[NL80211_ATTR_MAC])
4862 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4863
4c476991
JB		 4864 if (!rdev->ops->del_mpath)
4865 return -EOPNOTSUPP;
3b85875a 4866
e35e4d28 4867 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4868}
4869
66be7d2b
HR		 4870static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4871{
4872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4873 int err;
4874 struct net_device *dev = info->user_ptr[1];
4875 struct mpath_info pinfo;
4876 struct sk_buff *msg;
4877 u8 *dst = NULL;
4878 u8 mpp[ETH_ALEN];
4879
4880 memset(&pinfo, 0, sizeof(pinfo));
4881
4882 if (!info->attrs[NL80211_ATTR_MAC])
4883 return -EINVAL;
4884
4885 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4886
4887 if (!rdev->ops->get_mpp)
4888 return -EOPNOTSUPP;
4889
4890 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4891 return -EOPNOTSUPP;
4892
4893 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4894 if (err)
4895 return err;
4896
4897 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4898 if (!msg)
4899 return -ENOMEM;
4900
4901 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4902 dev, dst, mpp, &pinfo) < 0) {
4903 nlmsg_free(msg);
4904 return -ENOBUFS;
4905 }
4906
4907 return genlmsg_reply(msg, info);
4908}
4909
4910static int nl80211_dump_mpp(struct sk_buff *skb,
4911 struct netlink_callback *cb)
4912{
4913 struct mpath_info pinfo;
4914 struct cfg80211_registered_device *rdev;
4915 struct wireless_dev *wdev;
4916 u8 dst[ETH_ALEN];
4917 u8 mpp[ETH_ALEN];
4918 int path_idx = cb->args[2];
4919 int err;
4920
4921 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4922 if (err)
4923 return err;
4924
4925 if (!rdev->ops->dump_mpp) {
4926 err = -EOPNOTSUPP;
4927 goto out_err;
4928 }
4929
4930 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4931 err = -EOPNOTSUPP;
4932 goto out_err;
4933 }
4934
4935 while (1) {
4936 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4937 mpp, &pinfo);
4938 if (err == -ENOENT)
4939 break;
4940 if (err)
4941 goto out_err;
4942
4943 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4944 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4945 wdev->netdev, dst, mpp,
4946 &pinfo) < 0)
4947 goto out;
4948
4949 path_idx++;
4950 }
4951
4952 out:
4953 cb->args[2] = path_idx;
4954 err = skb->len;
4955 out_err:
4956 nl80211_finish_wdev_dump(rdev);
4957 return err;
4958}
4959
9f1ba906
JM		 4960static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4961{
4c476991
JB		 4962 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4963 struct net_device *dev = info->user_ptr[1];
c56589ed 4964 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4965 struct bss_parameters params;
c56589ed 4966 int err;
9f1ba906
JM		 4967
4968 memset(&params, 0, sizeof(params));
4969 /* default to not changing parameters */
4970 params.use_cts_prot = -1;
4971 params.use_short_preamble = -1;
4972 params.use_short_slot_time = -1;
fd8aaaf3 4973 params.ap_isolate = -1;
50b12f59 4974 params.ht_opmode = -1;
53cabad7
JB		 4975 params.p2p_ctwindow = -1;
4976 params.p2p_opp_ps = -1;
9f1ba906
JM		 4977
4978 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4979 params.use_cts_prot =
4980 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4981 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4982 params.use_short_preamble =
4983 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4984 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4985 params.use_short_slot_time =
4986 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4987 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4988 params.basic_rates =
4989 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4990 params.basic_rates_len =
4991 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4992 }
fd8aaaf3
FF		 4993 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4994 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4995 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4996 params.ht_opmode =
4997 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4998
53cabad7
JB		 4999 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5000 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5001 return -EINVAL;
5002 params.p2p_ctwindow =
5003 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5004 if (params.p2p_ctwindow < 0)
5005 return -EINVAL;
5006 if (params.p2p_ctwindow != 0 &&
5007 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5008 return -EINVAL;
5009 }
5010
5011 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5012 u8 tmp;
5013
5014 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5015 return -EINVAL;
5016 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5017 if (tmp > 1)
5018 return -EINVAL;
5019 params.p2p_opp_ps = tmp;
5020 if (params.p2p_opp_ps &&
5021 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5022 return -EINVAL;
5023 }
5024
4c476991
JB		 5025 if (!rdev->ops->change_bss)
5026 return -EOPNOTSUPP;
9f1ba906 5027
074ac8df 5028 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 5029 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5030 return -EOPNOTSUPP;
3b85875a 5031
c56589ed
SW		 5032 wdev_lock(wdev);
5033 err = rdev_change_bss(rdev, dev, &params);
5034 wdev_unlock(wdev);
5035
5036 return err;
9f1ba906
JM		 5037}
5038
b2e1b302
LR		 5039static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5040{
b2e1b302 5041 char *data = NULL;
05050753 5042 bool is_indoor;
57b5ce07 5043 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5044 u32 owner_nlportid;
5045
b2e1b302 5046
80778f18
LR		 5047 /*
5048 * You should only get this when cfg80211 hasn't yet initialized
5049 * completely when built-in to the kernel right between the time
5050 * window between nl80211_init() and regulatory_init(), if that is
5051 * even possible.
5052 */
458f4f9e 5053 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5054 return -EINPROGRESS;
80778f18 5055
57b5ce07
LR		 5056 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5057 user_reg_hint_type =
5058 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5059 else
5060 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5061
5062 switch (user_reg_hint_type) {
5063 case NL80211_USER_REG_HINT_USER:
5064 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5065 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5066 return -EINVAL;
5067
5068 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5069 return regulatory_hint_user(data, user_reg_hint_type);
5070 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5071 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5072 owner_nlportid = info->snd_portid;
5073 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5074 } else {
5075 owner_nlportid = 0;
5076 is_indoor = true;
5077 }
5078
5079 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5080 default:
5081 return -EINVAL;
5082 }
b2e1b302
LR		 5083}
5084
24bdd9f4 5085static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5086 struct genl_info *info)
93da9cc1 5087{
4c476991 5088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5089 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5090 struct wireless_dev *wdev = dev->ieee80211_ptr;
5091 struct mesh_config cur_params;
5092 int err = 0;
93da9cc1 5093 void *hdr;
5094 struct nlattr *pinfoattr;
5095 struct sk_buff *msg;
5096
29cbe68c
JB		 5097 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5098 return -EOPNOTSUPP;
5099
24bdd9f4 5100 if (!rdev->ops->get_mesh_config)
4c476991 5101 return -EOPNOTSUPP;
f3f92586 5102
29cbe68c
JB		 5103 wdev_lock(wdev);
5104 /* If not connected, get default parameters */
5105 if (!wdev->mesh_id_len)
5106 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5107 else
e35e4d28 5108 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5109 wdev_unlock(wdev);
5110
93da9cc1 5111 if (err)
4c476991 5112 return err;
93da9cc1 5113
5114 /* Draw up a netlink message to send back */
fd2120ca 5115 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5116 if (!msg)
5117 return -ENOMEM;
15e47304 5118 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5119 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5120 if (!hdr)
efe1cf0c 5121 goto out;
24bdd9f4 5122 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5123 if (!pinfoattr)
5124 goto nla_put_failure;
9360ffd1
DM		 5125 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5126 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5127 cur_params.dot11MeshRetryTimeout) ||
5128 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5129 cur_params.dot11MeshConfirmTimeout) ||
5130 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5131 cur_params.dot11MeshHoldingTimeout) ||
5132 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5133 cur_params.dot11MeshMaxPeerLinks) ||
5134 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5135 cur_params.dot11MeshMaxRetries) ||
5136 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5137 cur_params.dot11MeshTTL) ||
5138 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5139 cur_params.element_ttl) ||
5140 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5141 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5142 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5143 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5144 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5145 cur_params.dot11MeshHWMPmaxPREQretries) ||
5146 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5147 cur_params.path_refresh_time) ||
5148 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5149 cur_params.min_discovery_timeout) ||
5150 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5151 cur_params.dot11MeshHWMPactivePathTimeout) ||
5152 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5153 cur_params.dot11MeshHWMPpreqMinInterval) ||
5154 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5155 cur_params.dot11MeshHWMPperrMinInterval) ||
5156 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5157 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5158 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5159 cur_params.dot11MeshHWMPRootMode) ||
5160 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5161 cur_params.dot11MeshHWMPRannInterval) ||
5162 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5163 cur_params.dot11MeshGateAnnouncementProtocol) ||
5164 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5165 cur_params.dot11MeshForwarding) ||
5166 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5167 cur_params.rssi_threshold) ||
5168 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5169 cur_params.ht_opmode) ||
5170 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5171 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5172 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5173 cur_params.dot11MeshHWMProotInterval) ||
5174 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5175 cur_params.dot11MeshHWMPconfirmationInterval) ||
5176 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5177 cur_params.power_mode) ||
5178 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5179 cur_params.dot11MeshAwakeWindowDuration) ||
5180 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5181 cur_params.plink_timeout))
9360ffd1 5182 goto nla_put_failure;
93da9cc1 5183 nla_nest_end(msg, pinfoattr);
5184 genlmsg_end(msg, hdr);
4c476991 5185 return genlmsg_reply(msg, info);
93da9cc1 5186
3b85875a 5187 nla_put_failure:
93da9cc1 5188 genlmsg_cancel(msg, hdr);
efe1cf0c 5189 out:
d080e275 5190 nlmsg_free(msg);
4c476991 5191 return -ENOBUFS;
93da9cc1 5192}
5193
b54452b0 5194static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5195 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5196 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5197 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5198 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5199 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5200 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5201 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5202 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5203 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5204 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5205 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5206 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5207 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5208 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5209 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5210 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5211 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5212 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5213 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5214 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5215 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5216 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5217 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5218 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5219 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5220 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5221 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5222 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5223};
5224
c80d545d
JC		 5225static const struct nla_policy
5226 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5227 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5228 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5229 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5230 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5231 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5232 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5233 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5234 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5235 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5236};
5237
24bdd9f4 5238static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5239 struct mesh_config *cfg,
5240 u32 *mask_out)
93da9cc1 5241{
93da9cc1 5242 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5243 u32 mask = 0;
93da9cc1 5244
ea54fba2
MP		 5245#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5246do { \
5247 if (tb[attr]) { \
5248 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5249 return -EINVAL; \
5250 cfg->param = fn(tb[attr]); \
5251 mask |= (1 << (attr - 1)); \
5252 } \
5253} while (0)
bd90fdcc
JB		 5254
5255
24bdd9f4 5256 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5257 return -EINVAL;
5258 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5259 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5260 nl80211_meshconf_params_policy))
93da9cc1 5261 return -EINVAL;
5262
93da9cc1 5263 /* This makes sure that there aren't more than 32 mesh config
5264 * parameters (otherwise our bitfield scheme would not work.) */
5265 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5266
5267 /* Fill in the params struct */
ea54fba2 5268 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5269 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5270 nla_get_u16);
ea54fba2 5271 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5272 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5273 nla_get_u16);
ea54fba2 5274 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5275 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5276 nla_get_u16);
ea54fba2 5277 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5278 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5279 nla_get_u16);
ea54fba2 5280 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5281 mask, NL80211_MESHCONF_MAX_RETRIES,
5282 nla_get_u8);
ea54fba2 5283 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5284 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5285 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5286 mask, NL80211_MESHCONF_ELEMENT_TTL,
5287 nla_get_u8);
ea54fba2 5288 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5289 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5290 nla_get_u8);
ea54fba2
MP		 5291 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5292 1, 255, mask,
a4f606ea
CYY		 5293 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5294 nla_get_u32);
ea54fba2 5295 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5296 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5297 nla_get_u8);
ea54fba2 5298 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5299 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5300 nla_get_u32);
ea54fba2 5301 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5302 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5303 nla_get_u16);
ea54fba2
MP		 5304 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5305 1, 65535, mask,
a4f606ea
CYY		 5306 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5307 nla_get_u32);
93da9cc1 5308 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5309 1, 65535, mask,
5310 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5311 nla_get_u16);
dca7e943 5312 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5313 1, 65535, mask,
5314 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5315 nla_get_u16);
93da9cc1 5316 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5317 dot11MeshHWMPnetDiameterTraversalTime,
5318 1, 65535, mask,
a4f606ea
CYY		 5319 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5320 nla_get_u16);
ea54fba2
MP		 5321 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5322 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5323 nla_get_u8);
5324 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5325 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5326 nla_get_u16);
63c5723b 5327 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5328 dot11MeshGateAnnouncementProtocol, 0, 1,
5329 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5330 nla_get_u8);
ea54fba2 5331 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5332 mask, NL80211_MESHCONF_FORWARDING,
5333 nla_get_u8);
83374fe9 5334 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5335 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5336 nla_get_s32);
ea54fba2 5337 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5338 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5339 nla_get_u16);
5340 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5341 1, 65535, mask,
ac1073a6
CYY		 5342 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5343 nla_get_u32);
ea54fba2 5344 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5345 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5346 nla_get_u16);
5347 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5348 dot11MeshHWMPconfirmationInterval,
5349 1, 65535, mask,
728b19e5 5350 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5351 nla_get_u16);
3b1c5a53
MP		 5352 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5353 NL80211_MESH_POWER_ACTIVE,
5354 NL80211_MESH_POWER_MAX,
5355 mask, NL80211_MESHCONF_POWER_MODE,
5356 nla_get_u32);
5357 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5358 0, 65535, mask,
5359 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
31f909a2 5360 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538
CT		 5361 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5362 nla_get_u32);
bd90fdcc
JB		 5363 if (mask_out)
5364 *mask_out = mask;
c80d545d 5365
bd90fdcc
JB		 5366 return 0;
5367
5368#undef FILL_IN_MESH_PARAM_IF_SET
5369}
5370
c80d545d
JC		 5371static int nl80211_parse_mesh_setup(struct genl_info *info,
5372 struct mesh_setup *setup)
5373{
bb2798d4 5374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5375 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5376
5377 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5378 return -EINVAL;
5379 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5380 info->attrs[NL80211_ATTR_MESH_SETUP],
5381 nl80211_mesh_setup_params_policy))
5382 return -EINVAL;
5383
d299a1f2
JC		 5384 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5385 setup->sync_method =
5386 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5387 IEEE80211_SYNC_METHOD_VENDOR :
5388 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5389
c80d545d
JC		 5390 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5391 setup->path_sel_proto =
5392 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5393 IEEE80211_PATH_PROTOCOL_VENDOR :
5394 IEEE80211_PATH_PROTOCOL_HWMP;
5395
5396 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5397 setup->path_metric =
5398 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5399 IEEE80211_PATH_METRIC_VENDOR :
5400 IEEE80211_PATH_METRIC_AIRTIME;
5401
581a8b0f
JC		 5402
5403 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5404 struct nlattr *ieattr =
581a8b0f 5405 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5406 if (!is_valid_ie_attr(ieattr))
5407 return -EINVAL;
581a8b0f
JC		 5408 setup->ie = nla_data(ieattr);
5409 setup->ie_len = nla_len(ieattr);
c80d545d 5410 }
bb2798d4
TP		 5411 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5412 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5413 return -EINVAL;
5414 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5415 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5416 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5417 if (setup->is_secure)
5418 setup->user_mpm = true;
c80d545d 5419
6e16d90b
CT		 5420 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5421 if (!setup->user_mpm)
5422 return -EINVAL;
5423 setup->auth_id =
5424 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5425 }
5426
c80d545d
JC		 5427 return 0;
5428}
5429
24bdd9f4 5430static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5431 struct genl_info *info)
bd90fdcc
JB		 5432{
5433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5434 struct net_device *dev = info->user_ptr[1];
29cbe68c 5435 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5436 struct mesh_config cfg;
5437 u32 mask;
5438 int err;
5439
29cbe68c
JB		 5440 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5441 return -EOPNOTSUPP;
5442
24bdd9f4 5443 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5444 return -EOPNOTSUPP;
5445
24bdd9f4 5446 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5447 if (err)
5448 return err;
5449
29cbe68c
JB		 5450 wdev_lock(wdev);
5451 if (!wdev->mesh_id_len)
5452 err = -ENOLINK;
5453
5454 if (!err)
e35e4d28 5455 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5456
5457 wdev_unlock(wdev);
5458
5459 return err;
93da9cc1 5460}
5461
ad30ca2c
AN		 5462static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5463 struct sk_buff *msg)
f130347c 5464{
f130347c
LR		 5465 struct nlattr *nl_reg_rules;
5466 unsigned int i;
f130347c 5467
458f4f9e
JB		 5468 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5469 (regdom->dfs_region &&
5470 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5471 goto nla_put_failure;
458f4f9e 5472
f130347c
LR		 5473 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5474 if (!nl_reg_rules)
ad30ca2c 5475 goto nla_put_failure;
f130347c 5476
458f4f9e 5477 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5478 struct nlattr *nl_reg_rule;
5479 const struct ieee80211_reg_rule *reg_rule;
5480 const struct ieee80211_freq_range *freq_range;
5481 const struct ieee80211_power_rule *power_rule;
97524820 5482 unsigned int max_bandwidth_khz;
f130347c 5483
458f4f9e 5484 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5485 freq_range = &reg_rule->freq_range;
5486 power_rule = &reg_rule->power_rule;
5487
5488 nl_reg_rule = nla_nest_start(msg, i);
5489 if (!nl_reg_rule)
ad30ca2c 5490 goto nla_put_failure;
f130347c 5491
97524820
JD		 5492 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5493 if (!max_bandwidth_khz)
5494 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5495 reg_rule);
5496
9360ffd1
DM		 5497 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5498 reg_rule->flags) ||
5499 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5500 freq_range->start_freq_khz) ||
5501 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5502 freq_range->end_freq_khz) ||
5503 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5504 max_bandwidth_khz) ||
9360ffd1
DM		 5505 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5506 power_rule->max_antenna_gain) ||
5507 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5508 power_rule->max_eirp) ||
5509 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5510 reg_rule->dfs_cac_ms))
ad30ca2c 5511 goto nla_put_failure;
f130347c
LR		 5512
5513 nla_nest_end(msg, nl_reg_rule);
5514 }
5515
5516 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5517 return 0;
5518
5519nla_put_failure:
5520 return -EMSGSIZE;
5521}
5522
5523static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5524{
5525 const struct ieee80211_regdomain *regdom = NULL;
5526 struct cfg80211_registered_device *rdev;
5527 struct wiphy *wiphy = NULL;
5528 struct sk_buff *msg;
5529 void *hdr;
5530
5531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5532 if (!msg)
5533 return -ENOBUFS;
5534
5535 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5536 NL80211_CMD_GET_REG);
5537 if (!hdr)
5538 goto put_failure;
5539
5540 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5541 bool self_managed;
5542
ad30ca2c
AN		 5543 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5544 if (IS_ERR(rdev)) {
5545 nlmsg_free(msg);
5546 return PTR_ERR(rdev);
5547 }
5548
5549 wiphy = &rdev->wiphy;
1bdd716c
AN		 5550 self_managed = wiphy->regulatory_flags &
5551 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5552 regdom = get_wiphy_regdom(wiphy);
5553
1bdd716c
AN		 5554 /* a self-managed-reg device must have a private regdom */
5555 if (WARN_ON(!regdom && self_managed)) {
5556 nlmsg_free(msg);
5557 return -EINVAL;
5558 }
5559
ad30ca2c
AN		 5560 if (regdom &&
5561 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5562 goto nla_put_failure;
5563 }
5564
5565 if (!wiphy && reg_last_request_cell_base() &&
5566 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5567 NL80211_USER_REG_HINT_CELL_BASE))
5568 goto nla_put_failure;
5569
5570 rcu_read_lock();
5571
5572 if (!regdom)
5573 regdom = rcu_dereference(cfg80211_regdomain);
5574
5575 if (nl80211_put_regdom(regdom, msg))
5576 goto nla_put_failure_rcu;
5577
5578 rcu_read_unlock();
f130347c
LR		 5579
5580 genlmsg_end(msg, hdr);
5fe231e8 5581 return genlmsg_reply(msg, info);
f130347c 5582
458f4f9e
JB		 5583nla_put_failure_rcu:
5584 rcu_read_unlock();
f130347c
LR		 5585nla_put_failure:
5586 genlmsg_cancel(msg, hdr);
efe1cf0c 5587put_failure:
d080e275 5588 nlmsg_free(msg);
5fe231e8 5589 return -EMSGSIZE;
f130347c
LR		 5590}
5591
ad30ca2c
AN		 5592static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5593 u32 seq, int flags, struct wiphy *wiphy,
5594 const struct ieee80211_regdomain *regdom)
5595{
5596 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5597 NL80211_CMD_GET_REG);
5598
5599 if (!hdr)
5600 return -1;
5601
5602 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5603
5604 if (nl80211_put_regdom(regdom, msg))
5605 goto nla_put_failure;
5606
5607 if (!wiphy && reg_last_request_cell_base() &&
5608 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5609 NL80211_USER_REG_HINT_CELL_BASE))
5610 goto nla_put_failure;
5611
5612 if (wiphy &&
5613 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5614 goto nla_put_failure;
5615
1bdd716c
AN		 5616 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5617 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5618 goto nla_put_failure;
5619
053c095a
JB		 5620 genlmsg_end(msg, hdr);
5621 return 0;
ad30ca2c
AN		 5622
5623nla_put_failure:
5624 genlmsg_cancel(msg, hdr);
5625 return -EMSGSIZE;
5626}
5627
5628static int nl80211_get_reg_dump(struct sk_buff *skb,
5629 struct netlink_callback *cb)
5630{
5631 const struct ieee80211_regdomain *regdom = NULL;
5632 struct cfg80211_registered_device *rdev;
5633 int err, reg_idx, start = cb->args[2];
5634
5635 rtnl_lock();
5636
5637 if (cfg80211_regdomain && start == 0) {
5638 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5639 NLM_F_MULTI, NULL,
5640 rtnl_dereference(cfg80211_regdomain));
5641 if (err < 0)
5642 goto out_err;
5643 }
5644
5645 /* the global regdom is idx 0 */
5646 reg_idx = 1;
5647 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5648 regdom = get_wiphy_regdom(&rdev->wiphy);
5649 if (!regdom)
5650 continue;
5651
5652 if (++reg_idx <= start)
5653 continue;
5654
5655 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5656 NLM_F_MULTI, &rdev->wiphy, regdom);
5657 if (err < 0) {
5658 reg_idx--;
5659 break;
5660 }
5661 }
5662
5663 cb->args[2] = reg_idx;
5664 err = skb->len;
5665out_err:
5666 rtnl_unlock();
5667 return err;
5668}
5669
b6863036
JB		 5670#ifdef CONFIG_CFG80211_CRDA_SUPPORT
5671static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5672 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5673 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5674 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5675 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5676 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5677 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5678 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5679};
5680
5681static int parse_reg_rule(struct nlattr *tb[],
5682 struct ieee80211_reg_rule *reg_rule)
5683{
5684 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
5685 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
5686
5687 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5688 return -EINVAL;
5689 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5690 return -EINVAL;
5691 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5692 return -EINVAL;
5693 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5694 return -EINVAL;
5695 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5696 return -EINVAL;
5697
5698 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5699
5700 freq_range->start_freq_khz =
5701 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5702 freq_range->end_freq_khz =
5703 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5704 freq_range->max_bandwidth_khz =
5705 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5706
5707 power_rule->max_eirp =
5708 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5709
5710 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5711 power_rule->max_antenna_gain =
5712 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5713
5714 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5715 reg_rule->dfs_cac_ms =
5716 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5717
5718 return 0;
5719}
5720
b2e1b302
LR		 5721static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5722{
5723 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5724 struct nlattr *nl_reg_rule;
ea372c54
JB		 5725 char *alpha2;
5726 int rem_reg_rules, r;
b2e1b302 5727 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5728 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5729 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5730
5731 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5732 return -EINVAL;
5733
5734 if (!info->attrs[NL80211_ATTR_REG_RULES])
5735 return -EINVAL;
5736
5737 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5738
8b60b078
LR		 5739 if (info->attrs[NL80211_ATTR_DFS_REGION])
5740 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5741
b2e1b302 5742 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5743 rem_reg_rules) {
b2e1b302
LR		 5744 num_rules++;
5745 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5746 return -EINVAL;
b2e1b302
LR		 5747 }
5748
e438768f
LR		 5749 if (!reg_is_valid_request(alpha2))
5750 return -EINVAL;
5751
b2e1b302 5752 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5753 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5754
5755 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5756 if (!rd)
5757 return -ENOMEM;
b2e1b302
LR		 5758
5759 rd->n_reg_rules = num_rules;
5760 rd->alpha2[0] = alpha2[0];
5761 rd->alpha2[1] = alpha2[1];
5762
8b60b078
LR		 5763 /*
5764 * Disable DFS master mode if the DFS region was
5765 * not supported or known on this kernel.
5766 */
5767 if (reg_supported_dfs_region(dfs_region))
5768 rd->dfs_region = dfs_region;
5769
b2e1b302 5770 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5771 rem_reg_rules) {
ae811e21
JB		 5772 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5773 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5774 reg_rule_policy);
5775 if (r)
5776 goto bad_reg;
b2e1b302
LR		 5777 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5778 if (r)
5779 goto bad_reg;
5780
5781 rule_idx++;
5782
d0e18f83
LR		 5783 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5784 r = -EINVAL;
b2e1b302 5785 goto bad_reg;
d0e18f83 5786 }
b2e1b302
LR		 5787 }
5788
c37722bd 5789 r = set_regdom(rd, REGD_SOURCE_CRDA);
6913b49a 5790 /* set_regdom took ownership */
1a919318 5791 rd = NULL;
b2e1b302 5792
d2372b31 5793 bad_reg:
b2e1b302 5794 kfree(rd);
d0e18f83 5795 return r;
b2e1b302 5796}
b6863036 5797#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 5798
83f5e2cf
JB		 5799static int validate_scan_freqs(struct nlattr *freqs)
5800{
5801 struct nlattr *attr1, *attr2;
5802 int n_channels = 0, tmp1, tmp2;
5803
5804 nla_for_each_nested(attr1, freqs, tmp1) {
5805 n_channels++;
5806 /*
5807 * Some hardware has a limited channel list for
5808 * scanning, and it is pretty much nonsensical
5809 * to scan for a channel twice, so disallow that
5810 * and don't require drivers to check that the
5811 * channel list they get isn't longer than what
5812 * they can scan, as long as they can scan all
5813 * the channels they registered at once.
5814 */
5815 nla_for_each_nested(attr2, freqs, tmp2)
5816 if (attr1 != attr2 &&
5817 nla_get_u32(attr1) == nla_get_u32(attr2))
5818 return 0;
5819 }
5820
5821 return n_channels;
5822}
5823
38de03d2
AS		 5824static bool is_band_valid(struct wiphy *wiphy, enum ieee80211_band b)
5825{
5826 return b < IEEE80211_NUM_BANDS && wiphy->bands[b];
5827}
5828
5829static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
5830 struct cfg80211_bss_selection *bss_select)
5831{
5832 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
5833 struct nlattr *nest;
5834 int err;
5835 bool found = false;
5836 int i;
5837
5838 /* only process one nested attribute */
5839 nest = nla_data(nla);
5840 if (!nla_ok(nest, nla_len(nest)))
5841 return -EINVAL;
5842
5843 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
5844 nla_len(nest), nl80211_bss_select_policy);
5845 if (err)
5846 return err;
5847
5848 /* only one attribute may be given */
5849 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
5850 if (attr[i]) {
5851 if (found)
5852 return -EINVAL;
5853 found = true;
5854 }
5855 }
5856
5857 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
5858
5859 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
5860 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
5861
5862 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
5863 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
5864 bss_select->param.band_pref =
5865 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
5866 if (!is_band_valid(wiphy, bss_select->param.band_pref))
5867 return -EINVAL;
5868 }
5869
5870 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
5871 struct nl80211_bss_select_rssi_adjust *adj_param;
5872
5873 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
5874 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
5875 bss_select->param.adjust.band = adj_param->band;
5876 bss_select->param.adjust.delta = adj_param->delta;
5877 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
5878 return -EINVAL;
5879 }
5880
5881 /* user-space did not provide behaviour attribute */
5882 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
5883 return -EINVAL;
5884
5885 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
5886 return -EINVAL;
5887
5888 return 0;
5889}
5890
ad2b26ab
JB		 5891static int nl80211_parse_random_mac(struct nlattr **attrs,
5892 u8 *mac_addr, u8 *mac_addr_mask)
5893{
5894 int i;
5895
5896 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 5897 eth_zero_addr(mac_addr);
5898 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 5899 mac_addr[0] = 0x2;
5900 mac_addr_mask[0] = 0x3;
5901
5902 return 0;
5903 }
5904
5905 /* need both or none */
5906 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5907 return -EINVAL;
5908
5909 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5910 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5911
5912 /* don't allow or configure an mcast address */
5913 if (!is_multicast_ether_addr(mac_addr_mask) ||
5914 is_multicast_ether_addr(mac_addr))
5915 return -EINVAL;
5916
5917 /*
5918 * allow users to pass a MAC address that has bits set outside
5919 * of the mask, but don't bother drivers with having to deal
5920 * with such bits
5921 */
5922 for (i = 0; i < ETH_ALEN; i++)
5923 mac_addr[i] &= mac_addr_mask[i];
5924
5925 return 0;
5926}
5927
2a519311
JB		 5928static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5929{
4c476991 5930 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5931 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5932 struct cfg80211_scan_request *request;
2a519311
JB		 5933 struct nlattr *attr;
5934 struct wiphy *wiphy;
83f5e2cf 5935 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5936 size_t ie_len;
2a519311 5937
f4a11bb0
JB		 5938 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5939 return -EINVAL;
5940
79c97e97 5941 wiphy = &rdev->wiphy;
2a519311 5942
4c476991
JB		 5943 if (!rdev->ops->scan)
5944 return -EOPNOTSUPP;
2a519311 5945
f9d15d16 5946 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5947 err = -EBUSY;
5948 goto unlock;
5949 }
2a519311
JB		 5950
5951 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5952 n_channels = validate_scan_freqs(
5953 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5954 if (!n_channels) {
5955 err = -EINVAL;
5956 goto unlock;
5957 }
2a519311 5958 } else {
bdfbec2d 5959 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5960 }
5961
5962 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5963 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5964 n_ssids++;
5965
f9f47529
JB		 5966 if (n_ssids > wiphy->max_scan_ssids) {
5967 err = -EINVAL;
5968 goto unlock;
5969 }
2a519311 5970
70692ad2
JM		 5971 if (info->attrs[NL80211_ATTR_IE])
5972 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5973 else
5974 ie_len = 0;
5975
f9f47529
JB		 5976 if (ie_len > wiphy->max_scan_ie_len) {
5977 err = -EINVAL;
5978 goto unlock;
5979 }
18a83659 5980
2a519311 5981 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5982 + sizeof(*request->ssids) * n_ssids
5983 + sizeof(*request->channels) * n_channels
70692ad2 5984 + ie_len, GFP_KERNEL);
f9f47529
JB		 5985 if (!request) {
5986 err = -ENOMEM;
5987 goto unlock;
5988 }
2a519311 5989
2a519311 5990 if (n_ssids)
5ba63533 5991 request->ssids = (void *)&request->channels[n_channels];
2a519311 5992 request->n_ssids = n_ssids;
70692ad2 5993 if (ie_len) {
13874e4b 5994 if (n_ssids)
70692ad2
JM		 5995 request->ie = (void *)(request->ssids + n_ssids);
5996 else
5997 request->ie = (void *)(request->channels + n_channels);
5998 }
2a519311 5999
584991dc 6000 i = 0;
2a519311
JB		 6001 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6002 /* user specified, bail out if channel not found */
2a519311 6003 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 6004 struct ieee80211_channel *chan;
6005
6006 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6007
6008 if (!chan) {
2a519311
JB		 6009 err = -EINVAL;
6010 goto out_free;
6011 }
584991dc
JB		 6012
6013 /* ignore disabled channels */
6014 if (chan->flags & IEEE80211_CHAN_DISABLED)
6015 continue;
6016
6017 request->channels[i] = chan;
2a519311
JB		 6018 i++;
6019 }
6020 } else {
34850ab2
JB		 6021 enum ieee80211_band band;
6022
2a519311 6023 /* all channels */
2a519311
JB		 6024 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6025 int j;
6026 if (!wiphy->bands[band])
6027 continue;
6028 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 6029 struct ieee80211_channel *chan;
6030
6031 chan = &wiphy->bands[band]->channels[j];
6032
6033 if (chan->flags & IEEE80211_CHAN_DISABLED)
6034 continue;
6035
6036 request->channels[i] = chan;
2a519311
JB		 6037 i++;
6038 }
6039 }
6040 }
6041
584991dc
JB		 6042 if (!i) {
6043 err = -EINVAL;
6044 goto out_free;
6045 }
6046
6047 request->n_channels = i;
6048
2a519311 6049 i = 0;
13874e4b 6050 if (n_ssids) {
2a519311 6051 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 6052 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 6053 err = -EINVAL;
6054 goto out_free;
6055 }
57a27e1d 6056 request->ssids[i].ssid_len = nla_len(attr);
2a519311 6057 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 6058 i++;
6059 }
6060 }
6061
70692ad2
JM		 6062 if (info->attrs[NL80211_ATTR_IE]) {
6063 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 6064 memcpy((void *)request->ie,
6065 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 6066 request->ie_len);
6067 }
6068
34850ab2 6069 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 6070 if (wiphy->bands[i])
6071 request->rates[i] =
6072 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 6073
6074 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6075 nla_for_each_nested(attr,
6076 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6077 tmp) {
6078 enum ieee80211_band band = nla_type(attr);
6079
84404623 6080 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 6081 err = -EINVAL;
6082 goto out_free;
6083 }
1b09cd82
FF		 6084
6085 if (!wiphy->bands[band])
6086 continue;
6087
34850ab2
JB		 6088 err = ieee80211_get_ratemask(wiphy->bands[band],
6089 nla_data(attr),
6090 nla_len(attr),
6091 &request->rates[band]);
6092 if (err)
6093 goto out_free;
6094 }
6095 }
6096
46856bbf 6097 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 6098 request->flags = nla_get_u32(
6099 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6100 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6101 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6102 err = -EOPNOTSUPP;
6103 goto out_free;
6104 }
ad2b26ab
JB		 6105
6106 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6107 if (!(wiphy->features &
6108 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6109 err = -EOPNOTSUPP;
6110 goto out_free;
6111 }
6112
6113 if (wdev->current_bss) {
6114 err = -EOPNOTSUPP;
6115 goto out_free;
6116 }
6117
6118 err = nl80211_parse_random_mac(info->attrs,
6119 request->mac_addr,
6120 request->mac_addr_mask);
6121 if (err)
6122 goto out_free;
6123 }
46856bbf 6124 }
ed473771 6125
e9f935e3
RM		 6126 request->no_cck =
6127 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6128
818965d3
JM		 6129 if (info->attrs[NL80211_ATTR_MAC])
6130 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6131 ETH_ALEN);
6132 else
6133 eth_broadcast_addr(request->bssid);
6134
fd014284 6135 request->wdev = wdev;
79c97e97 6136 request->wiphy = &rdev->wiphy;
15d6030b 6137 request->scan_start = jiffies;
2a519311 6138
79c97e97 6139 rdev->scan_req = request;
e35e4d28 6140 err = rdev_scan(rdev, request);
2a519311 6141
463d0183 6142 if (!err) {
fd014284
JB		 6143 nl80211_send_scan_start(rdev, wdev);
6144 if (wdev->netdev)
6145 dev_hold(wdev->netdev);
4c476991 6146 } else {
2a519311 6147 out_free:
79c97e97 6148 rdev->scan_req = NULL;
2a519311
JB		 6149 kfree(request);
6150 }
3b85875a 6151
f9f47529 6152 unlock:
2a519311
JB		 6153 return err;
6154}
6155
91d3ab46
VK		 6156static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6157{
6158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6159 struct wireless_dev *wdev = info->user_ptr[1];
6160
6161 if (!rdev->ops->abort_scan)
6162 return -EOPNOTSUPP;
6163
6164 if (rdev->scan_msg)
6165 return 0;
6166
6167 if (!rdev->scan_req)
6168 return -ENOENT;
6169
6170 rdev_abort_scan(rdev, wdev);
6171 return 0;
6172}
6173
3b06d277
AS		 6174static int
6175nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6176 struct cfg80211_sched_scan_request *request,
6177 struct nlattr **attrs)
6178{
6179 int tmp, err, i = 0;
6180 struct nlattr *attr;
6181
6182 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6183 u32 interval;
6184
6185 /*
6186 * If scan plans are not specified,
6187 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6188 * case one scan plan will be set with the specified scan
6189 * interval and infinite number of iterations.
6190 */
6191 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6192 return -EINVAL;
6193
6194 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6195 if (!interval)
6196 return -EINVAL;
6197
6198 request->scan_plans[0].interval =
6199 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6200 if (!request->scan_plans[0].interval)
6201 return -EINVAL;
6202
6203 if (request->scan_plans[0].interval >
6204 wiphy->max_sched_scan_plan_interval)
6205 request->scan_plans[0].interval =
6206 wiphy->max_sched_scan_plan_interval;
6207
6208 return 0;
6209 }
6210
6211 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6212 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6213
6214 if (WARN_ON(i >= n_plans))
6215 return -EINVAL;
6216
6217 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6218 nla_data(attr), nla_len(attr),
6219 nl80211_plan_policy);
6220 if (err)
6221 return err;
6222
6223 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6224 return -EINVAL;
6225
6226 request->scan_plans[i].interval =
6227 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6228 if (!request->scan_plans[i].interval ||
6229 request->scan_plans[i].interval >
6230 wiphy->max_sched_scan_plan_interval)
6231 return -EINVAL;
6232
6233 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6234 request->scan_plans[i].iterations =
6235 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6236 if (!request->scan_plans[i].iterations ||
6237 (request->scan_plans[i].iterations >
6238 wiphy->max_sched_scan_plan_iterations))
6239 return -EINVAL;
6240 } else if (i < n_plans - 1) {
6241 /*
6242 * All scan plans but the last one must specify
6243 * a finite number of iterations
6244 */
6245 return -EINVAL;
6246 }
6247
6248 i++;
6249 }
6250
6251 /*
6252 * The last scan plan must not specify the number of
6253 * iterations, it is supposed to run infinitely
6254 */
6255 if (request->scan_plans[n_plans - 1].iterations)
6256 return -EINVAL;
6257
6258 return 0;
6259}
6260
256da02d 6261static struct cfg80211_sched_scan_request *
ad2b26ab 6262nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6263 struct nlattr **attrs)
807f8a8c
LC		 6264{
6265 struct cfg80211_sched_scan_request *request;
807f8a8c 6266 struct nlattr *attr;
3b06d277 6267 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
807f8a8c
LC		 6268 enum ieee80211_band band;
6269 size_t ie_len;
a1f1c21c 6270 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6271 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6272
256da02d
LC		 6273 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6274 return ERR_PTR(-EINVAL);
807f8a8c 6275
256da02d 6276 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6277 n_channels = validate_scan_freqs(
256da02d 6278 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6279 if (!n_channels)
256da02d 6280 return ERR_PTR(-EINVAL);
807f8a8c 6281 } else {
bdfbec2d 6282 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6283 }
6284
256da02d
LC		 6285 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6286 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6287 tmp)
6288 n_ssids++;
6289
93b6aa69 6290 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6291 return ERR_PTR(-EINVAL);
807f8a8c 6292
ea73cbce
JB		 6293 /*
6294 * First, count the number of 'real' matchsets. Due to an issue with
6295 * the old implementation, matchsets containing only the RSSI attribute
6296 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6297 * RSSI for all matchsets, rather than their own matchset for reporting
6298 * all APs with a strong RSSI. This is needed to be compatible with
6299 * older userspace that treated a matchset with only the RSSI as the
6300 * global RSSI for all other matchsets - if there are other matchsets.
6301 */
256da02d 6302 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6303 nla_for_each_nested(attr,
256da02d 6304 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6305 tmp) {
6306 struct nlattr *rssi;
6307
6308 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6309 nla_data(attr), nla_len(attr),
6310 nl80211_match_policy);
6311 if (err)
256da02d 6312 return ERR_PTR(err);
ea73cbce
JB		 6313 /* add other standalone attributes here */
6314 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6315 n_match_sets++;
6316 continue;
6317 }
6318 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6319 if (rssi)
6320 default_match_rssi = nla_get_s32(rssi);
6321 }
6322 }
6323
6324 /* However, if there's no other matchset, add the RSSI one */
6325 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6326 n_match_sets = 1;
a1f1c21c
LC		 6327
6328 if (n_match_sets > wiphy->max_match_sets)
256da02d 6329 return ERR_PTR(-EINVAL);
a1f1c21c 6330
256da02d
LC		 6331 if (attrs[NL80211_ATTR_IE])
6332 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6333 else
6334 ie_len = 0;
6335
5a865bad 6336 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6337 return ERR_PTR(-EINVAL);
c10841ca 6338
3b06d277
AS		 6339 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6340 /*
6341 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6342 * each scan plan already specifies its own interval
6343 */
6344 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6345 return ERR_PTR(-EINVAL);
6346
6347 nla_for_each_nested(attr,
6348 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6349 n_plans++;
6350 } else {
6351 /*
6352 * The scan interval attribute is kept for backward
6353 * compatibility. If no scan plans are specified and sched scan
6354 * interval is specified, one scan plan will be set with this
6355 * scan interval and infinite number of iterations.
6356 */
6357 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6358 return ERR_PTR(-EINVAL);
6359
6360 n_plans = 1;
6361 }
6362
6363 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6364 return ERR_PTR(-EINVAL);
6365
807f8a8c 6366 request = kzalloc(sizeof(*request)
a2cd43c5 6367 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6368 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6369 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6370 + sizeof(*request->channels) * n_channels
807f8a8c 6371 + ie_len, GFP_KERNEL);
256da02d
LC		 6372 if (!request)
6373 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6374
6375 if (n_ssids)
6376 request->ssids = (void *)&request->channels[n_channels];
6377 request->n_ssids = n_ssids;
6378 if (ie_len) {
13874e4b 6379 if (n_ssids)
807f8a8c
LC		 6380 request->ie = (void *)(request->ssids + n_ssids);
6381 else
6382 request->ie = (void *)(request->channels + n_channels);
6383 }
6384
a1f1c21c
LC		 6385 if (n_match_sets) {
6386 if (request->ie)
6387 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6388 else if (n_ssids)
a1f1c21c
LC		 6389 request->match_sets =
6390 (void *)(request->ssids + n_ssids);
6391 else
6392 request->match_sets =
6393 (void *)(request->channels + n_channels);
6394 }
6395 request->n_match_sets = n_match_sets;
6396
3b06d277
AS		 6397 if (n_match_sets)
6398 request->scan_plans = (void *)(request->match_sets +
6399 n_match_sets);
6400 else if (request->ie)
6401 request->scan_plans = (void *)(request->ie + ie_len);
6402 else if (n_ssids)
6403 request->scan_plans = (void *)(request->ssids + n_ssids);
6404 else
6405 request->scan_plans = (void *)(request->channels + n_channels);
6406
6407 request->n_scan_plans = n_plans;
6408
807f8a8c 6409 i = 0;
256da02d 6410 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6411 /* user specified, bail out if channel not found */
6412 nla_for_each_nested(attr,
256da02d 6413 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6414 tmp) {
6415 struct ieee80211_channel *chan;
6416
6417 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6418
6419 if (!chan) {
6420 err = -EINVAL;
6421 goto out_free;
6422 }
6423
6424 /* ignore disabled channels */
6425 if (chan->flags & IEEE80211_CHAN_DISABLED)
6426 continue;
6427
6428 request->channels[i] = chan;
6429 i++;
6430 }
6431 } else {
6432 /* all channels */
6433 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6434 int j;
6435 if (!wiphy->bands[band])
6436 continue;
6437 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6438 struct ieee80211_channel *chan;
6439
6440 chan = &wiphy->bands[band]->channels[j];
6441
6442 if (chan->flags & IEEE80211_CHAN_DISABLED)
6443 continue;
6444
6445 request->channels[i] = chan;
6446 i++;
6447 }
6448 }
6449 }
6450
6451 if (!i) {
6452 err = -EINVAL;
6453 goto out_free;
6454 }
6455
6456 request->n_channels = i;
6457
6458 i = 0;
13874e4b 6459 if (n_ssids) {
256da02d 6460 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6461 tmp) {
57a27e1d 6462 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6463 err = -EINVAL;
6464 goto out_free;
6465 }
57a27e1d 6466 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6467 memcpy(request->ssids[i].ssid, nla_data(attr),
6468 nla_len(attr));
807f8a8c
LC		 6469 i++;
6470 }
6471 }
6472
a1f1c21c 6473 i = 0;
256da02d 6474 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6475 nla_for_each_nested(attr,
256da02d 6476 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6477 tmp) {
88e920b4 6478 struct nlattr *ssid, *rssi;
a1f1c21c 6479
ae811e21
JB		 6480 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6481 nla_data(attr), nla_len(attr),
6482 nl80211_match_policy);
6483 if (err)
6484 goto out_free;
4a4ab0d7 6485 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6486 if (ssid) {
ea73cbce
JB		 6487 if (WARN_ON(i >= n_match_sets)) {
6488 /* this indicates a programming error,
6489 * the loop above should have verified
6490 * things properly
6491 */
6492 err = -EINVAL;
6493 goto out_free;
6494 }
6495
a1f1c21c
LC		 6496 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6497 err = -EINVAL;
6498 goto out_free;
6499 }
6500 memcpy(request->match_sets[i].ssid.ssid,
6501 nla_data(ssid), nla_len(ssid));
6502 request->match_sets[i].ssid.ssid_len =
6503 nla_len(ssid);
ea73cbce
JB		 6504 /* special attribute - old implemenation w/a */
6505 request->match_sets[i].rssi_thold =
6506 default_match_rssi;
6507 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6508 if (rssi)
6509 request->match_sets[i].rssi_thold =
6510 nla_get_s32(rssi);
a1f1c21c
LC		 6511 }
6512 i++;
6513 }
ea73cbce
JB		 6514
6515 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6516 if (i == 0 && n_match_sets)
ea73cbce
JB		 6517 request->match_sets[0].rssi_thold = default_match_rssi;
6518
6519 request->min_rssi_thold = INT_MAX;
6520 for (i = 0; i < n_match_sets; i++)
6521 request->min_rssi_thold =
6522 min(request->match_sets[i].rssi_thold,
6523 request->min_rssi_thold);
6524 } else {
6525 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6526 }
6527
9900e484
JB		 6528 if (ie_len) {
6529 request->ie_len = ie_len;
807f8a8c 6530 memcpy((void *)request->ie,
256da02d 6531 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6532 request->ie_len);
6533 }
6534
256da02d 6535 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6536 request->flags = nla_get_u32(
256da02d 6537 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6538 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6539 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6540 err = -EOPNOTSUPP;
6541 goto out_free;
6542 }
ad2b26ab
JB		 6543
6544 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6545 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6546
6547 if (!wdev) /* must be net-detect */
6548 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6549
6550 if (!(wiphy->features & flg)) {
6551 err = -EOPNOTSUPP;
6552 goto out_free;
6553 }
6554
6555 if (wdev && wdev->current_bss) {
6556 err = -EOPNOTSUPP;
6557 goto out_free;
6558 }
6559
6560 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6561 request->mac_addr_mask);
6562 if (err)
6563 goto out_free;
6564 }
46856bbf 6565 }
ed473771 6566
9c748934
LC		 6567 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6568 request->delay =
6569 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6570
3b06d277
AS		 6571 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6572 if (err)
6573 goto out_free;
6574
15d6030b 6575 request->scan_start = jiffies;
807f8a8c 6576
256da02d 6577 return request;
807f8a8c
LC		 6578
6579out_free:
6580 kfree(request);
256da02d
LC		 6581 return ERR_PTR(err);
6582}
6583
6584static int nl80211_start_sched_scan(struct sk_buff *skb,
6585 struct genl_info *info)
6586{
6587 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6588 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6589 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6590 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6591 int err;
6592
6593 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6594 !rdev->ops->sched_scan_start)
6595 return -EOPNOTSUPP;
6596
6597 if (rdev->sched_scan_req)
6598 return -EINPROGRESS;
6599
31a60ed1
JR		 6600 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6601 info->attrs);
6602
6603 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6604 if (err)
6605 goto out_err;
6606
31a60ed1 6607 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6608 if (err)
6609 goto out_free;
6610
31a60ed1
JR		 6611 sched_scan_req->dev = dev;
6612 sched_scan_req->wiphy = &rdev->wiphy;
6613
93a1e86c
JR		 6614 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6615 sched_scan_req->owner_nlportid = info->snd_portid;
6616
31a60ed1 6617 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6618
6619 nl80211_send_sched_scan(rdev, dev,
6620 NL80211_CMD_START_SCHED_SCAN);
6621 return 0;
6622
6623out_free:
31a60ed1 6624 kfree(sched_scan_req);
256da02d 6625out_err:
807f8a8c
LC		 6626 return err;
6627}
6628
6629static int nl80211_stop_sched_scan(struct sk_buff *skb,
6630 struct genl_info *info)
6631{
6632 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6633
6634 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6635 !rdev->ops->sched_scan_stop)
6636 return -EOPNOTSUPP;
6637
5fe231e8 6638 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6639}
6640
04f39047
SW		 6641static int nl80211_start_radar_detection(struct sk_buff *skb,
6642 struct genl_info *info)
6643{
6644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6645 struct net_device *dev = info->user_ptr[1];
6646 struct wireless_dev *wdev = dev->ieee80211_ptr;
6647 struct cfg80211_chan_def chandef;
55f7435c 6648 enum nl80211_dfs_regions dfs_region;
31559f35 6649 unsigned int cac_time_ms;
04f39047
SW		 6650 int err;
6651
55f7435c
LR		 6652 dfs_region = reg_get_dfs_region(wdev->wiphy);
6653 if (dfs_region == NL80211_DFS_UNSET)
6654 return -EINVAL;
6655
04f39047
SW		 6656 err = nl80211_parse_chandef(rdev, info, &chandef);
6657 if (err)
6658 return err;
6659
ff311bc1
SW		 6660 if (netif_carrier_ok(dev))
6661 return -EBUSY;
6662
04f39047
SW		 6663 if (wdev->cac_started)
6664 return -EBUSY;
6665
2beb6dab 6666 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6667 wdev->iftype);
04f39047
SW		 6668 if (err < 0)
6669 return err;
6670
6671 if (err == 0)
6672 return -EINVAL;
6673
fe7c3a1f 6674 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6675 return -EINVAL;
6676
6677 if (!rdev->ops->start_radar_detection)
6678 return -EOPNOTSUPP;
6679
31559f35
JD		 6680 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6681 if (WARN_ON(!cac_time_ms))
6682 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6683
a1056b1b 6684 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 6685 if (!err) {
9e0e2961 6686 wdev->chandef = chandef;
04f39047
SW		 6687 wdev->cac_started = true;
6688 wdev->cac_start_time = jiffies;
31559f35 6689 wdev->cac_time_ms = cac_time_ms;
04f39047 6690 }
04f39047
SW		 6691 return err;
6692}
6693
16ef1fe2
SW		 6694static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6695{
6696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6697 struct net_device *dev = info->user_ptr[1];
6698 struct wireless_dev *wdev = dev->ieee80211_ptr;
6699 struct cfg80211_csa_settings params;
6700 /* csa_attrs is defined static to avoid waste of stack size - this
6701 * function is called under RTNL lock, so this should not be a problem.
6702 */
6703 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6704 int err;
ee4bc9e7 6705 bool need_new_beacon = false;
9a774c78 6706 int len, i;
252e07ca 6707 u32 cs_count;
16ef1fe2
SW		 6708
6709 if (!rdev->ops->channel_switch ||
6710 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6711 return -EOPNOTSUPP;
6712
ee4bc9e7
SW		 6713 switch (dev->ieee80211_ptr->iftype) {
6714 case NL80211_IFTYPE_AP:
6715 case NL80211_IFTYPE_P2P_GO:
6716 need_new_beacon = true;
6717
6718 /* useless if AP is not running */
6719 if (!wdev->beacon_interval)
1ff79dfa 6720 return -ENOTCONN;
ee4bc9e7
SW		 6721 break;
6722 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6723 if (!wdev->ssid_len)
6724 return -ENOTCONN;
6725 break;
c6da674a 6726 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6727 if (!wdev->mesh_id_len)
6728 return -ENOTCONN;
ee4bc9e7
SW		 6729 break;
6730 default:
16ef1fe2 6731 return -EOPNOTSUPP;
ee4bc9e7 6732 }
16ef1fe2
SW		 6733
6734 memset(&params, 0, sizeof(params));
6735
6736 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6737 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6738 return -EINVAL;
6739
6740 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6741 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6742 return -EINVAL;
6743
252e07ca
LC		 6744 /* Even though the attribute is u32, the specification says
6745 * u8, so let's make sure we don't overflow.
6746 */
6747 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6748 if (cs_count > 255)
6749 return -EINVAL;
6750
6751 params.count = cs_count;
16ef1fe2 6752
ee4bc9e7
SW		 6753 if (!need_new_beacon)
6754 goto skip_beacons;
6755
16ef1fe2
SW		 6756 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6757 if (err)
6758 return err;
6759
6760 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6761 info->attrs[NL80211_ATTR_CSA_IES],
6762 nl80211_policy);
6763 if (err)
6764 return err;
6765
6766 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6767 if (err)
6768 return err;
6769
6770 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6771 return -EINVAL;
6772
9a774c78
AO		 6773 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6774 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6775 return -EINVAL;
6776
9a774c78
AO		 6777 params.n_counter_offsets_beacon = len / sizeof(u16);
6778 if (rdev->wiphy.max_num_csa_counters &&
6779 (params.n_counter_offsets_beacon >
6780 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6781 return -EINVAL;
6782
9a774c78
AO		 6783 params.counter_offsets_beacon =
6784 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6785
6786 /* sanity checks - counters should fit and be the same */
6787 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6788 u16 offset = params.counter_offsets_beacon[i];
6789
6790 if (offset >= params.beacon_csa.tail_len)
6791 return -EINVAL;
6792
6793 if (params.beacon_csa.tail[offset] != params.count)
6794 return -EINVAL;
6795 }
6796
16ef1fe2 6797 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6798 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6799 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6800 return -EINVAL;
6801
9a774c78
AO		 6802 params.n_counter_offsets_presp = len / sizeof(u16);
6803 if (rdev->wiphy.max_num_csa_counters &&
6804 (params.n_counter_offsets_beacon >
6805 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6806 return -EINVAL;
9a774c78
AO		 6807
6808 params.counter_offsets_presp =
6809 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6810
6811 /* sanity checks - counters should fit and be the same */
6812 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6813 u16 offset = params.counter_offsets_presp[i];
6814
6815 if (offset >= params.beacon_csa.probe_resp_len)
6816 return -EINVAL;
6817
6818 if (params.beacon_csa.probe_resp[offset] !=
6819 params.count)
6820 return -EINVAL;
6821 }
16ef1fe2
SW		 6822 }
6823
ee4bc9e7 6824skip_beacons:
16ef1fe2
SW		 6825 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6826 if (err)
6827 return err;
6828
923b352f
AN		 6829 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
6830 wdev->iftype))
16ef1fe2
SW		 6831 return -EINVAL;
6832
2beb6dab
LC		 6833 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6834 &params.chandef,
6835 wdev->iftype);
6836 if (err < 0)
6837 return err;
6838
dcc6c2f5 6839 if (err > 0)
2beb6dab 6840 params.radar_required = true;
16ef1fe2 6841
16ef1fe2
SW		 6842 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6843 params.block_tx = true;
6844
c56589ed
SW		 6845 wdev_lock(wdev);
6846 err = rdev_channel_switch(rdev, dev, &params);
6847 wdev_unlock(wdev);
6848
6849 return err;
16ef1fe2
SW		 6850}
6851
9720bb3a
JB		 6852static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6853 u32 seq, int flags,
2a519311 6854 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6855 struct wireless_dev *wdev,
6856 struct cfg80211_internal_bss *intbss)
2a519311 6857{
48ab905d 6858 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6859 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6860 void *hdr;
6861 struct nlattr *bss;
48ab905d
JB		 6862
6863 ASSERT_WDEV_LOCK(wdev);
2a519311 6864
15e47304 6865 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6866 NL80211_CMD_NEW_SCAN_RESULTS);
6867 if (!hdr)
6868 return -1;
6869
9720bb3a
JB		 6870 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6871
97990a06
JB		 6872 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6873 goto nla_put_failure;
6874 if (wdev->netdev &&
9360ffd1
DM		 6875 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6876 goto nla_put_failure;
97990a06
JB		 6877 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6878 goto nla_put_failure;
2a519311
JB		 6879
6880 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6881 if (!bss)
6882 goto nla_put_failure;
9360ffd1 6883 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6884 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6885 goto nla_put_failure;
9caf0364
JB		 6886
6887 rcu_read_lock();
0e227084
JB		 6888 /* indicate whether we have probe response data or not */
6889 if (rcu_access_pointer(res->proberesp_ies) &&
6890 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6891 goto fail_unlock_rcu;
6892
6893 /* this pointer prefers to be pointed to probe response data
6894 * but is always valid
6895 */
9caf0364 6896 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6897 if (ies) {
6898 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6899 goto fail_unlock_rcu;
8cef2c9d
JB		 6900 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6901 ies->len, ies->data))
6902 goto fail_unlock_rcu;
9caf0364 6903 }
0e227084
JB		 6904
6905 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6906 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6907 if (ies && ies->from_beacon) {
6908 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6909 goto fail_unlock_rcu;
6910 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6911 ies->len, ies->data))
6912 goto fail_unlock_rcu;
9caf0364
JB		 6913 }
6914 rcu_read_unlock();
6915
9360ffd1
DM		 6916 if (res->beacon_interval &&
6917 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6918 goto nla_put_failure;
6919 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6920 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6921 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6922 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6923 jiffies_to_msecs(jiffies - intbss->ts)))
6924 goto nla_put_failure;
2a519311 6925
6e19bc4b
DS		 6926 if (intbss->ts_boottime &&
6927 nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
6928 intbss->ts_boottime))
6929 goto nla_put_failure;
6930
77965c97 6931 switch (rdev->wiphy.signal_type) {
2a519311 6932 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6933 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6934 goto nla_put_failure;
2a519311
JB		 6935 break;
6936 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6937 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6938 goto nla_put_failure;
2a519311
JB		 6939 break;
6940 default:
6941 break;
6942 }
6943
48ab905d 6944 switch (wdev->iftype) {
074ac8df 6945 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6946 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6947 if (intbss == wdev->current_bss &&
6948 nla_put_u32(msg, NL80211_BSS_STATUS,
6949 NL80211_BSS_STATUS_ASSOCIATED))
6950 goto nla_put_failure;
48ab905d
JB		 6951 break;
6952 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6953 if (intbss == wdev->current_bss &&
6954 nla_put_u32(msg, NL80211_BSS_STATUS,
6955 NL80211_BSS_STATUS_IBSS_JOINED))
6956 goto nla_put_failure;
48ab905d
JB		 6957 break;
6958 default:
6959 break;
6960 }
6961
2a519311
JB		 6962 nla_nest_end(msg, bss);
6963
053c095a
JB		 6964 genlmsg_end(msg, hdr);
6965 return 0;
2a519311 6966
8cef2c9d
JB		 6967 fail_unlock_rcu:
6968 rcu_read_unlock();
2a519311
JB		 6969 nla_put_failure:
6970 genlmsg_cancel(msg, hdr);
6971 return -EMSGSIZE;
6972}
6973
97990a06 6974static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6975{
48ab905d 6976 struct cfg80211_registered_device *rdev;
2a519311 6977 struct cfg80211_internal_bss *scan;
48ab905d 6978 struct wireless_dev *wdev;
97990a06 6979 int start = cb->args[2], idx = 0;
2a519311
JB		 6980 int err;
6981
97990a06 6982 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6983 if (err)
6984 return err;
2a519311 6985
48ab905d
JB		 6986 wdev_lock(wdev);
6987 spin_lock_bh(&rdev->bss_lock);
6988 cfg80211_bss_expire(rdev);
6989
9720bb3a
JB		 6990 cb->seq = rdev->bss_generation;
6991
48ab905d 6992 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6993 if (++idx <= start)
6994 continue;
9720bb3a 6995 if (nl80211_send_bss(skb, cb,
2a519311 6996 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6997 rdev, wdev, scan) < 0) {
2a519311 6998 idx--;
67748893 6999 break;
2a519311
JB		 7000 }
7001 }
7002
48ab905d
JB		 7003 spin_unlock_bh(&rdev->bss_lock);
7004 wdev_unlock(wdev);
2a519311 7005
97990a06
JB		 7006 cb->args[2] = idx;
7007 nl80211_finish_wdev_dump(rdev);
2a519311 7008
67748893 7009 return skb->len;
2a519311
JB		 7010}
7011
15e47304 7012static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 7013 int flags, struct net_device *dev,
7014 bool allow_radio_stats,
7015 struct survey_info *survey)
61fa713c
HS		 7016{
7017 void *hdr;
7018 struct nlattr *infoattr;
7019
11f78ac3
JB		 7020 /* skip radio stats if userspace didn't request them */
7021 if (!survey->channel && !allow_radio_stats)
7022 return 0;
7023
15e47304 7024 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 7025 NL80211_CMD_NEW_SURVEY_RESULTS);
7026 if (!hdr)
7027 return -ENOMEM;
7028
9360ffd1
DM		 7029 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7030 goto nla_put_failure;
61fa713c
HS		 7031
7032 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7033 if (!infoattr)
7034 goto nla_put_failure;
7035
11f78ac3
JB		 7036 if (survey->channel &&
7037 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 7038 survey->channel->center_freq))
7039 goto nla_put_failure;
7040
7041 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7042 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7043 goto nla_put_failure;
7044 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7045 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7046 goto nla_put_failure;
4ed20beb
JB		 7047 if ((survey->filled & SURVEY_INFO_TIME) &&
7048 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
7049 survey->time))
9360ffd1 7050 goto nla_put_failure;
4ed20beb
JB		 7051 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
7052 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7053 survey->time_busy))
9360ffd1 7054 goto nla_put_failure;
4ed20beb
JB		 7055 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
7056 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7057 survey->time_ext_busy))
9360ffd1 7058 goto nla_put_failure;
4ed20beb
JB		 7059 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
7060 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
7061 survey->time_rx))
9360ffd1 7062 goto nla_put_failure;
4ed20beb
JB		 7063 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
7064 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
7065 survey->time_tx))
9360ffd1 7066 goto nla_put_failure;
052536ab
JB		 7067 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
7068 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7069 survey->time_scan))
7070 goto nla_put_failure;
61fa713c
HS		 7071
7072 nla_nest_end(msg, infoattr);
7073
053c095a
JB		 7074 genlmsg_end(msg, hdr);
7075 return 0;
61fa713c
HS		 7076
7077 nla_put_failure:
7078 genlmsg_cancel(msg, hdr);
7079 return -EMSGSIZE;
7080}
7081
11f78ac3 7082static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 7083{
7084 struct survey_info survey;
1b8ec87a 7085 struct cfg80211_registered_device *rdev;
97990a06
JB		 7086 struct wireless_dev *wdev;
7087 int survey_idx = cb->args[2];
61fa713c 7088 int res;
11f78ac3 7089 bool radio_stats;
61fa713c 7090
1b8ec87a 7091 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 7092 if (res)
7093 return res;
61fa713c 7094
11f78ac3
JB		 7095 /* prepare_wdev_dump parsed the attributes */
7096 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7097
97990a06
JB		 7098 if (!wdev->netdev) {
7099 res = -EINVAL;
7100 goto out_err;
7101 }
7102
1b8ec87a 7103 if (!rdev->ops->dump_survey) {
61fa713c
HS		 7104 res = -EOPNOTSUPP;
7105 goto out_err;
7106 }
7107
7108 while (1) {
1b8ec87a 7109 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 7110 if (res == -ENOENT)
7111 break;
7112 if (res)
7113 goto out_err;
7114
11f78ac3
JB		 7115 /* don't send disabled channels, but do send non-channel data */
7116 if (survey.channel &&
7117 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 7118 survey_idx++;
7119 continue;
7120 }
7121
61fa713c 7122 if (nl80211_send_survey(skb,
15e47304 7123 NETLINK_CB(cb->skb).portid,
61fa713c 7124 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 7125 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 7126 goto out;
7127 survey_idx++;
7128 }
7129
7130 out:
97990a06 7131 cb->args[2] = survey_idx;
61fa713c
HS		 7132 res = skb->len;
7133 out_err:
1b8ec87a 7134 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 7135 return res;
7136}
7137
b23aa676
SO		 7138static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7139{
7140 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7141 NL80211_WPA_VERSION_2));
7142}
7143
636a5d36
JM		 7144static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7145{
4c476991
JB		 7146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7147 struct net_device *dev = info->user_ptr[1];
19957bb3 7148 struct ieee80211_channel *chan;
e39e5b5e
JM		 7149 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7150 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7151 enum nl80211_auth_type auth_type;
fffd0934 7152 struct key_parse key;
d5cdfacb 7153 bool local_state_change;
636a5d36 7154
f4a11bb0
JB		 7155 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7156 return -EINVAL;
7157
7158 if (!info->attrs[NL80211_ATTR_MAC])
7159 return -EINVAL;
7160
1778092e
JM		 7161 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7162 return -EINVAL;
7163
19957bb3
JB		 7164 if (!info->attrs[NL80211_ATTR_SSID])
7165 return -EINVAL;
7166
7167 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7168 return -EINVAL;
7169
fffd0934
JB		 7170 err = nl80211_parse_key(info, &key);
7171 if (err)
7172 return err;
7173
7174 if (key.idx >= 0) {
e31b8213
JB		 7175 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7176 return -EINVAL;
fffd0934
JB		 7177 if (!key.p.key || !key.p.key_len)
7178 return -EINVAL;
7179 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7180 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7181 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7182 key.p.key_len != WLAN_KEY_LEN_WEP104))
7183 return -EINVAL;
7184 if (key.idx > 4)
7185 return -EINVAL;
7186 } else {
7187 key.p.key_len = 0;
7188 key.p.key = NULL;
7189 }
7190
afea0b7a
JB		 7191 if (key.idx >= 0) {
7192 int i;
7193 bool ok = false;
7194 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7195 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7196 ok = true;
7197 break;
7198 }
7199 }
4c476991
JB		 7200 if (!ok)
7201 return -EINVAL;
afea0b7a
JB		 7202 }
7203
4c476991
JB		 7204 if (!rdev->ops->auth)
7205 return -EOPNOTSUPP;
636a5d36 7206
074ac8df 7207 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7208 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7209 return -EOPNOTSUPP;
eec60b03 7210
19957bb3 7211 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7212 chan = nl80211_get_valid_chan(&rdev->wiphy,
7213 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7214 if (!chan)
4c476991 7215 return -EINVAL;
636a5d36 7216
19957bb3
JB		 7217 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7218 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7219
7220 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7221 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7222 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7223 }
7224
19957bb3 7225 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7226 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7227 return -EINVAL;
636a5d36 7228
e39e5b5e
JM		 7229 if (auth_type == NL80211_AUTHTYPE_SAE &&
7230 !info->attrs[NL80211_ATTR_SAE_DATA])
7231 return -EINVAL;
7232
7233 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7234 if (auth_type != NL80211_AUTHTYPE_SAE)
7235 return -EINVAL;
7236 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7237 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7238 /* need to include at least Auth Transaction and Status Code */
7239 if (sae_data_len < 4)
7240 return -EINVAL;
7241 }
7242
d5cdfacb
JM		 7243 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7244
95de817b
JB		 7245 /*
7246 * Since we no longer track auth state, ignore
7247 * requests to only change local state.
7248 */
7249 if (local_state_change)
7250 return 0;
7251
91bf9b26
JB		 7252 wdev_lock(dev->ieee80211_ptr);
7253 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7254 ssid, ssid_len, ie, ie_len,
7255 key.p.key, key.p.key_len, key.idx,
7256 sae_data, sae_data_len);
7257 wdev_unlock(dev->ieee80211_ptr);
7258 return err;
636a5d36
JM		 7259}
7260
c0692b8f
JB		 7261static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7262 struct genl_info *info,
3dc27d25
JB		 7263 struct cfg80211_crypto_settings *settings,
7264 int cipher_limit)
b23aa676 7265{
c0b2bbd8
JB		 7266 memset(settings, 0, sizeof(*settings));
7267
b23aa676
SO		 7268 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7269
c0692b8f
JB		 7270 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7271 u16 proto;
7272 proto = nla_get_u16(
7273 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7274 settings->control_port_ethertype = cpu_to_be16(proto);
7275 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7276 proto != ETH_P_PAE)
7277 return -EINVAL;
7278 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7279 settings->control_port_no_encrypt = true;
7280 } else
7281 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7282
b23aa676
SO		 7283 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7284 void *data;
7285 int len, i;
7286
7287 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7288 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7289 settings->n_ciphers_pairwise = len / sizeof(u32);
7290
7291 if (len % sizeof(u32))
7292 return -EINVAL;
7293
3dc27d25 7294 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7295 return -EINVAL;
7296
7297 memcpy(settings->ciphers_pairwise, data, len);
7298
7299 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7300 if (!cfg80211_supported_cipher_suite(
7301 &rdev->wiphy,
b23aa676
SO		 7302 settings->ciphers_pairwise[i]))
7303 return -EINVAL;
7304 }
7305
7306 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7307 settings->cipher_group =
7308 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7309 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7310 settings->cipher_group))
b23aa676
SO		 7311 return -EINVAL;
7312 }
7313
7314 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7315 settings->wpa_versions =
7316 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7317 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7318 return -EINVAL;
7319 }
7320
7321 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7322 void *data;
6d30240e 7323 int len;
b23aa676
SO		 7324
7325 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7326 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7327 settings->n_akm_suites = len / sizeof(u32);
7328
7329 if (len % sizeof(u32))
7330 return -EINVAL;
7331
1b9ca027
JM		 7332 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7333 return -EINVAL;
7334
b23aa676 7335 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7336 }
7337
7338 return 0;
7339}
7340
636a5d36
JM		 7341static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7342{
4c476991
JB		 7343 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7344 struct net_device *dev = info->user_ptr[1];
f444de05 7345 struct ieee80211_channel *chan;
f62fab73
JB		 7346 struct cfg80211_assoc_request req = {};
7347 const u8 *bssid, *ssid;
7348 int err, ssid_len = 0;
636a5d36 7349
f4a11bb0
JB		 7350 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7351 return -EINVAL;
7352
7353 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7354 !info->attrs[NL80211_ATTR_SSID] ||
7355 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7356 return -EINVAL;
7357
4c476991
JB		 7358 if (!rdev->ops->assoc)
7359 return -EOPNOTSUPP;
636a5d36 7360
074ac8df 7361 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7362 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7363 return -EOPNOTSUPP;
eec60b03 7364
19957bb3 7365 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7366
664834de
JM		 7367 chan = nl80211_get_valid_chan(&rdev->wiphy,
7368 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7369 if (!chan)
4c476991 7370 return -EINVAL;
636a5d36 7371
19957bb3
JB		 7372 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7373 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7374
7375 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7376 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7377 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7378 }
7379
dc6382ce 7380 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7381 enum nl80211_mfp mfp =
dc6382ce 7382 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7383 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7384 req.use_mfp = true;
4c476991
JB		 7385 else if (mfp != NL80211_MFP_NO)
7386 return -EINVAL;
dc6382ce
JM		 7387 }
7388
3e5d7649 7389 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7390 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7391
7e7c8926 7392 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7393 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7394
7395 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7396 memcpy(&req.ht_capa_mask,
7397 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7398 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7399
7400 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7401 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7402 return -EINVAL;
f62fab73
JB		 7403 memcpy(&req.ht_capa,
7404 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7405 sizeof(req.ht_capa));
7e7c8926
BG		 7406 }
7407
ee2aca34 7408 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7409 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7410
7411 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7412 memcpy(&req.vht_capa_mask,
7413 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7414 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7415
7416 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7417 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7418 return -EINVAL;
f62fab73
JB		 7419 memcpy(&req.vht_capa,
7420 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7421 sizeof(req.vht_capa));
ee2aca34
JB		 7422 }
7423
bab5ab7d 7424 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 7425 if (!((rdev->wiphy.features &
7426 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7427 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7428 !wiphy_ext_feature_isset(&rdev->wiphy,
7429 NL80211_EXT_FEATURE_RRM))
bab5ab7d
AK		 7430 return -EINVAL;
7431 req.flags |= ASSOC_REQ_USE_RRM;
7432 }
7433
f62fab73 7434 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7435 if (!err) {
7436 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7437 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7438 ssid, ssid_len, &req);
91bf9b26
JB		 7439 wdev_unlock(dev->ieee80211_ptr);
7440 }
636a5d36 7441
636a5d36
JM		 7442 return err;
7443}
7444
7445static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7446{
4c476991
JB		 7447 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7448 struct net_device *dev = info->user_ptr[1];
19957bb3 7449 const u8 *ie = NULL, *bssid;
91bf9b26 7450 int ie_len = 0, err;
19957bb3 7451 u16 reason_code;
d5cdfacb 7452 bool local_state_change;
636a5d36 7453
f4a11bb0
JB		 7454 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7455 return -EINVAL;
7456
7457 if (!info->attrs[NL80211_ATTR_MAC])
7458 return -EINVAL;
7459
7460 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7461 return -EINVAL;
7462
4c476991
JB		 7463 if (!rdev->ops->deauth)
7464 return -EOPNOTSUPP;
636a5d36 7465
074ac8df 7466 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7467 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7468 return -EOPNOTSUPP;
eec60b03 7469
19957bb3 7470 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7471
19957bb3
JB		 7472 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7473 if (reason_code == 0) {
f4a11bb0 7474 /* Reason Code 0 is reserved */
4c476991 7475 return -EINVAL;
255e737e 7476 }
636a5d36
JM		 7477
7478 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7479 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7480 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7481 }
7482
d5cdfacb
JM		 7483 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7484
91bf9b26
JB		 7485 wdev_lock(dev->ieee80211_ptr);
7486 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7487 local_state_change);
7488 wdev_unlock(dev->ieee80211_ptr);
7489 return err;
636a5d36
JM		 7490}
7491
7492static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7493{
4c476991
JB		 7494 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7495 struct net_device *dev = info->user_ptr[1];
19957bb3 7496 const u8 *ie = NULL, *bssid;
91bf9b26 7497 int ie_len = 0, err;
19957bb3 7498 u16 reason_code;
d5cdfacb 7499 bool local_state_change;
636a5d36 7500
f4a11bb0
JB		 7501 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7502 return -EINVAL;
7503
7504 if (!info->attrs[NL80211_ATTR_MAC])
7505 return -EINVAL;
7506
7507 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7508 return -EINVAL;
7509
4c476991
JB		 7510 if (!rdev->ops->disassoc)
7511 return -EOPNOTSUPP;
636a5d36 7512
074ac8df 7513 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7514 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7515 return -EOPNOTSUPP;
eec60b03 7516
19957bb3 7517 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7518
19957bb3
JB		 7519 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7520 if (reason_code == 0) {
f4a11bb0 7521 /* Reason Code 0 is reserved */
4c476991 7522 return -EINVAL;
255e737e 7523 }
636a5d36
JM		 7524
7525 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7526 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7527 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7528 }
7529
d5cdfacb
JM		 7530 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7531
91bf9b26
JB		 7532 wdev_lock(dev->ieee80211_ptr);
7533 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7534 local_state_change);
7535 wdev_unlock(dev->ieee80211_ptr);
7536 return err;
636a5d36
JM		 7537}
7538
dd5b4cc7
FF		 7539static bool
7540nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7541 int mcast_rate[IEEE80211_NUM_BANDS],
7542 int rateval)
7543{
7544 struct wiphy *wiphy = &rdev->wiphy;
7545 bool found = false;
7546 int band, i;
7547
7548 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7549 struct ieee80211_supported_band *sband;
7550
7551 sband = wiphy->bands[band];
7552 if (!sband)
7553 continue;
7554
7555 for (i = 0; i < sband->n_bitrates; i++) {
7556 if (sband->bitrates[i].bitrate == rateval) {
7557 mcast_rate[band] = i + 1;
7558 found = true;
7559 break;
7560 }
7561 }
7562 }
7563
7564 return found;
7565}
7566
04a773ad
JB		 7567static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7568{
4c476991
JB		 7569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7570 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7571 struct cfg80211_ibss_params ibss;
7572 struct wiphy *wiphy;
fffd0934 7573 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7574 int err;
7575
8e30bc55
JB		 7576 memset(&ibss, 0, sizeof(ibss));
7577
04a773ad
JB		 7578 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7579 return -EINVAL;
7580
683b6d3b 7581 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7582 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7583 return -EINVAL;
7584
8e30bc55
JB		 7585 ibss.beacon_interval = 100;
7586
7587 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7588 ibss.beacon_interval =
7589 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7590 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7591 return -EINVAL;
7592 }
7593
4c476991
JB		 7594 if (!rdev->ops->join_ibss)
7595 return -EOPNOTSUPP;
04a773ad 7596
4c476991
JB		 7597 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7598 return -EOPNOTSUPP;
04a773ad 7599
79c97e97 7600 wiphy = &rdev->wiphy;
04a773ad 7601
39193498 7602 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7603 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7604
7605 if (!is_valid_ether_addr(ibss.bssid))
7606 return -EINVAL;
7607 }
04a773ad
JB		 7608 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7609 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7610
7611 if (info->attrs[NL80211_ATTR_IE]) {
7612 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7613 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7614 }
7615
683b6d3b
JB		 7616 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7617 if (err)
7618 return err;
04a773ad 7619
174e0cd2
IP		 7620 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7621 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7622 return -EINVAL;
7623
2f301ab2 7624 switch (ibss.chandef.width) {
bf372645
SW		 7625 case NL80211_CHAN_WIDTH_5:
7626 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7627 case NL80211_CHAN_WIDTH_20_NOHT:
7628 break;
7629 case NL80211_CHAN_WIDTH_20:
7630 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7631 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7632 return -EINVAL;
7633 break;
7634 case NL80211_CHAN_WIDTH_80:
7635 case NL80211_CHAN_WIDTH_80P80:
7636 case NL80211_CHAN_WIDTH_160:
7637 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7638 return -EINVAL;
7639 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7640 NL80211_EXT_FEATURE_VHT_IBSS))
7641 return -EINVAL;
7642 break;
2f301ab2 7643 default:
c04d6150 7644 return -EINVAL;
2f301ab2 7645 }
db9c64cf 7646
04a773ad 7647 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7648 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7649
fbd2c8dc
TP		 7650 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7651 u8 *rates =
7652 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7653 int n_rates =
7654 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7655 struct ieee80211_supported_band *sband =
683b6d3b 7656 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7657
34850ab2
JB		 7658 err = ieee80211_get_ratemask(sband, rates, n_rates,
7659 &ibss.basic_rates);
7660 if (err)
7661 return err;
fbd2c8dc 7662 }
dd5b4cc7 7663
803768f5
SW		 7664 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7665 memcpy(&ibss.ht_capa_mask,
7666 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7667 sizeof(ibss.ht_capa_mask));
7668
7669 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7670 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7671 return -EINVAL;
7672 memcpy(&ibss.ht_capa,
7673 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7674 sizeof(ibss.ht_capa));
7675 }
7676
dd5b4cc7
FF		 7677 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7678 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7679 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7680 return -EINVAL;
fbd2c8dc 7681
4c476991 7682 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7683 bool no_ht = false;
7684
4c476991 7685 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7686 info->attrs[NL80211_ATTR_KEYS],
7687 &no_ht);
4c476991
JB		 7688 if (IS_ERR(connkeys))
7689 return PTR_ERR(connkeys);
de7044ee 7690
3d9d1d66
JB		 7691 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7692 no_ht) {
5e950a78 7693 kzfree(connkeys);
de7044ee
SM		 7694 return -EINVAL;
7695 }
4c476991 7696 }
04a773ad 7697
267335d6
AQ		 7698 ibss.control_port =
7699 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7700
5336fa88
SW		 7701 ibss.userspace_handles_dfs =
7702 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7703
4c476991 7704 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7705 if (err)
b47f610b 7706 kzfree(connkeys);
04a773ad
JB		 7707 return err;
7708}
7709
7710static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7711{
4c476991
JB		 7712 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7713 struct net_device *dev = info->user_ptr[1];
04a773ad 7714
4c476991
JB		 7715 if (!rdev->ops->leave_ibss)
7716 return -EOPNOTSUPP;
04a773ad 7717
4c476991
JB		 7718 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7719 return -EOPNOTSUPP;
04a773ad 7720
4c476991 7721 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7722}
7723
f4e583c8
AQ		 7724static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7725{
7726 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7727 struct net_device *dev = info->user_ptr[1];
7728 int mcast_rate[IEEE80211_NUM_BANDS];
7729 u32 nla_rate;
7730 int err;
7731
7732 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7733 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7734 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7735 return -EOPNOTSUPP;
7736
7737 if (!rdev->ops->set_mcast_rate)
7738 return -EOPNOTSUPP;
7739
7740 memset(mcast_rate, 0, sizeof(mcast_rate));
7741
7742 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7743 return -EINVAL;
7744
7745 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7746 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7747 return -EINVAL;
7748
a1056b1b 7749 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 7750
7751 return err;
7752}
7753
ad7e718c
JB		 7754static struct sk_buff *
7755__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7756 struct wireless_dev *wdev, int approxlen,
7757 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7758 enum nl80211_attrs attr,
7759 const struct nl80211_vendor_cmd_info *info,
7760 gfp_t gfp)
ad7e718c
JB		 7761{
7762 struct sk_buff *skb;
7763 void *hdr;
7764 struct nlattr *data;
7765
7766 skb = nlmsg_new(approxlen + 100, gfp);
7767 if (!skb)
7768 return NULL;
7769
7770 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7771 if (!hdr) {
7772 kfree_skb(skb);
7773 return NULL;
7774 }
7775
7776 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7777 goto nla_put_failure;
567ffc35
JB		 7778
7779 if (info) {
7780 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7781 info->vendor_id))
7782 goto nla_put_failure;
7783 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7784 info->subcmd))
7785 goto nla_put_failure;
7786 }
7787
6c09e791
AK		 7788 if (wdev) {
7789 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7790 wdev_id(wdev)))
7791 goto nla_put_failure;
7792 if (wdev->netdev &&
7793 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7794 wdev->netdev->ifindex))
7795 goto nla_put_failure;
7796 }
7797
ad7e718c
JB		 7798 data = nla_nest_start(skb, attr);
7799
7800 ((void **)skb->cb)[0] = rdev;
7801 ((void **)skb->cb)[1] = hdr;
7802 ((void **)skb->cb)[2] = data;
7803
7804 return skb;
7805
7806 nla_put_failure:
7807 kfree_skb(skb);
7808 return NULL;
7809}
f4e583c8 7810
e03ad6ea 7811struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7812 struct wireless_dev *wdev,
e03ad6ea
JB		 7813 enum nl80211_commands cmd,
7814 enum nl80211_attrs attr,
7815 int vendor_event_idx,
7816 int approxlen, gfp_t gfp)
7817{
f26cbf40 7818 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7819 const struct nl80211_vendor_cmd_info *info;
7820
7821 switch (cmd) {
7822 case NL80211_CMD_TESTMODE:
7823 if (WARN_ON(vendor_event_idx != -1))
7824 return NULL;
7825 info = NULL;
7826 break;
7827 case NL80211_CMD_VENDOR:
7828 if (WARN_ON(vendor_event_idx < 0 ||
7829 vendor_event_idx >= wiphy->n_vendor_events))
7830 return NULL;
7831 info = &wiphy->vendor_events[vendor_event_idx];
7832 break;
7833 default:
7834 WARN_ON(1);
7835 return NULL;
7836 }
7837
6c09e791 7838 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 7839 cmd, attr, info, gfp);
7840}
7841EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7842
7843void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7844{
7845 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7846 void *hdr = ((void **)skb->cb)[1];
7847 struct nlattr *data = ((void **)skb->cb)[2];
7848 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7849
bd8c78e7
JB		 7850 /* clear CB data for netlink core to own from now on */
7851 memset(skb->cb, 0, sizeof(skb->cb));
7852
e03ad6ea
JB		 7853 nla_nest_end(skb, data);
7854 genlmsg_end(skb, hdr);
7855
7856 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7857 mcgrp = NL80211_MCGRP_VENDOR;
7858
7859 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7860 mcgrp, gfp);
7861}
7862EXPORT_SYMBOL(__cfg80211_send_event_skb);
7863
aff89a9b 7864#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7865static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7866{
4c476991 7867 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7868 struct wireless_dev *wdev =
7869 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7870 int err;
7871
fc73f11f
DS		 7872 if (!rdev->ops->testmode_cmd)
7873 return -EOPNOTSUPP;
7874
7875 if (IS_ERR(wdev)) {
7876 err = PTR_ERR(wdev);
7877 if (err != -EINVAL)
7878 return err;
7879 wdev = NULL;
7880 } else if (wdev->wiphy != &rdev->wiphy) {
7881 return -EINVAL;
7882 }
7883
aff89a9b
JB		 7884 if (!info->attrs[NL80211_ATTR_TESTDATA])
7885 return -EINVAL;
7886
ad7e718c 7887 rdev->cur_cmd_info = info;
fc73f11f 7888 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7889 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7890 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7891 rdev->cur_cmd_info = NULL;
aff89a9b 7892
aff89a9b
JB		 7893 return err;
7894}
7895
71063f0e
WYG		 7896static int nl80211_testmode_dump(struct sk_buff *skb,
7897 struct netlink_callback *cb)
7898{
00918d33 7899 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7900 int err;
7901 long phy_idx;
7902 void *data = NULL;
7903 int data_len = 0;
7904
5fe231e8
JB		 7905 rtnl_lock();
7906
71063f0e
WYG		 7907 if (cb->args[0]) {
7908 /*
7909 * 0 is a valid index, but not valid for args[0],
7910 * so we need to offset by 1.
7911 */
7912 phy_idx = cb->args[0] - 1;
7913 } else {
7914 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7915 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7916 nl80211_policy);
7917 if (err)
5fe231e8 7918 goto out_err;
00918d33 7919
2bd7e35d
JB		 7920 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7921 nl80211_fam.attrbuf);
7922 if (IS_ERR(rdev)) {
5fe231e8
JB		 7923 err = PTR_ERR(rdev);
7924 goto out_err;
00918d33 7925 }
2bd7e35d
JB		 7926 phy_idx = rdev->wiphy_idx;
7927 rdev = NULL;
2bd7e35d 7928
71063f0e
WYG		 7929 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7930 cb->args[1] =
7931 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7932 }
7933
7934 if (cb->args[1]) {
7935 data = nla_data((void *)cb->args[1]);
7936 data_len = nla_len((void *)cb->args[1]);
7937 }
7938
00918d33
JB		 7939 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7940 if (!rdev) {
5fe231e8
JB		 7941 err = -ENOENT;
7942 goto out_err;
71063f0e 7943 }
71063f0e 7944
00918d33 7945 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7946 err = -EOPNOTSUPP;
7947 goto out_err;
7948 }
7949
7950 while (1) {
15e47304 7951 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7952 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7953 NL80211_CMD_TESTMODE);
7954 struct nlattr *tmdata;
7955
cb35fba3
DC		 7956 if (!hdr)
7957 break;
7958
9360ffd1 7959 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7960 genlmsg_cancel(skb, hdr);
7961 break;
7962 }
7963
7964 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7965 if (!tmdata) {
7966 genlmsg_cancel(skb, hdr);
7967 break;
7968 }
e35e4d28 7969 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7970 nla_nest_end(skb, tmdata);
7971
7972 if (err == -ENOBUFS || err == -ENOENT) {
7973 genlmsg_cancel(skb, hdr);
7974 break;
7975 } else if (err) {
7976 genlmsg_cancel(skb, hdr);
7977 goto out_err;
7978 }
7979
7980 genlmsg_end(skb, hdr);
7981 }
7982
7983 err = skb->len;
7984 /* see above */
7985 cb->args[0] = phy_idx + 1;
7986 out_err:
5fe231e8 7987 rtnl_unlock();
71063f0e
WYG		 7988 return err;
7989}
aff89a9b
JB		 7990#endif
7991
b23aa676
SO		 7992static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7993{
4c476991
JB		 7994 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7995 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7996 struct cfg80211_connect_params connect;
7997 struct wiphy *wiphy;
fffd0934 7998 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7999 int err;
8000
8001 memset(&connect, 0, sizeof(connect));
8002
8003 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8004 return -EINVAL;
8005
8006 if (!info->attrs[NL80211_ATTR_SSID] ||
8007 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8008 return -EINVAL;
8009
8010 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8011 connect.auth_type =
8012 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 8013 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8014 NL80211_CMD_CONNECT))
b23aa676
SO		 8015 return -EINVAL;
8016 } else
8017 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8018
8019 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8020
c0692b8f 8021 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 8022 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 8023 if (err)
8024 return err;
b23aa676 8025
074ac8df 8026 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8027 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8028 return -EOPNOTSUPP;
b23aa676 8029
79c97e97 8030 wiphy = &rdev->wiphy;
b23aa676 8031
4486ea98
BS		 8032 connect.bg_scan_period = -1;
8033 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8034 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8035 connect.bg_scan_period =
8036 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8037 }
8038
b23aa676
SO		 8039 if (info->attrs[NL80211_ATTR_MAC])
8040 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 8041 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8042 connect.bssid_hint =
8043 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 8044 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8045 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8046
8047 if (info->attrs[NL80211_ATTR_IE]) {
8048 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8049 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8050 }
8051
cee00a95
JM		 8052 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8053 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8054 if (connect.mfp != NL80211_MFP_REQUIRED &&
8055 connect.mfp != NL80211_MFP_NO)
8056 return -EINVAL;
8057 } else {
8058 connect.mfp = NL80211_MFP_NO;
8059 }
8060
b23aa676 8061 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 8062 connect.channel = nl80211_get_valid_chan(
8063 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8064 if (!connect.channel)
1df4a510
JM		 8065 return -EINVAL;
8066 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 8067 connect.channel_hint = nl80211_get_valid_chan(
8068 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8069 if (!connect.channel_hint)
4c476991 8070 return -EINVAL;
b23aa676
SO		 8071 }
8072
fffd0934
JB		 8073 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8074 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 8075 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 8076 if (IS_ERR(connkeys))
8077 return PTR_ERR(connkeys);
fffd0934
JB		 8078 }
8079
7e7c8926
BG		 8080 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8081 connect.flags |= ASSOC_REQ_DISABLE_HT;
8082
8083 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8084 memcpy(&connect.ht_capa_mask,
8085 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8086 sizeof(connect.ht_capa_mask));
8087
8088 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 8089 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 8090 kzfree(connkeys);
7e7c8926 8091 return -EINVAL;
b4e4f47e 8092 }
7e7c8926
BG		 8093 memcpy(&connect.ht_capa,
8094 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8095 sizeof(connect.ht_capa));
8096 }
8097
ee2aca34
JB		 8098 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8099 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8100
8101 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8102 memcpy(&connect.vht_capa_mask,
8103 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8104 sizeof(connect.vht_capa_mask));
8105
8106 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8107 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 8108 kzfree(connkeys);
ee2aca34
JB		 8109 return -EINVAL;
8110 }
8111 memcpy(&connect.vht_capa,
8112 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8113 sizeof(connect.vht_capa));
8114 }
8115
bab5ab7d 8116 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
0c9ca11b
BL		 8117 if (!((rdev->wiphy.features &
8118 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8119 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8120 !wiphy_ext_feature_isset(&rdev->wiphy,
8121 NL80211_EXT_FEATURE_RRM)) {
707554b4 8122 kzfree(connkeys);
bab5ab7d 8123 return -EINVAL;
707554b4 8124 }
bab5ab7d
AK		 8125 connect.flags |= ASSOC_REQ_USE_RRM;
8126 }
8127
34d50519
LD		 8128 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
8129 if (connect.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ]) {
8130 kzfree(connkeys);
8131 return -EOPNOTSUPP;
8132 }
8133
38de03d2
AS		 8134 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8135 /* bss selection makes no sense if bssid is set */
8136 if (connect.bssid) {
8137 kzfree(connkeys);
8138 return -EINVAL;
8139 }
8140
8141 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8142 wiphy, &connect.bss_select);
8143 if (err) {
8144 kzfree(connkeys);
8145 return err;
8146 }
8147 }
8148
83739b03
JB		 8149 wdev_lock(dev->ieee80211_ptr);
8150 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
8151 wdev_unlock(dev->ieee80211_ptr);
fffd0934 8152 if (err)
b47f610b 8153 kzfree(connkeys);
b23aa676
SO		 8154 return err;
8155}
8156
8157static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8158{
4c476991
JB		 8159 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8160 struct net_device *dev = info->user_ptr[1];
b23aa676 8161 u16 reason;
83739b03 8162 int ret;
b23aa676
SO		 8163
8164 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8165 reason = WLAN_REASON_DEAUTH_LEAVING;
8166 else
8167 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8168
8169 if (reason == 0)
8170 return -EINVAL;
8171
074ac8df 8172 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8173 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8174 return -EOPNOTSUPP;
b23aa676 8175
83739b03
JB		 8176 wdev_lock(dev->ieee80211_ptr);
8177 ret = cfg80211_disconnect(rdev, dev, reason, true);
8178 wdev_unlock(dev->ieee80211_ptr);
8179 return ret;
b23aa676
SO		 8180}
8181
463d0183
JB		 8182static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8183{
4c476991 8184 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8185 struct net *net;
8186 int err;
463d0183 8187
4b681c82
VK		 8188 if (info->attrs[NL80211_ATTR_PID]) {
8189 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8190
8191 net = get_net_ns_by_pid(pid);
8192 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8193 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8194
4b681c82
VK		 8195 net = get_net_ns_by_fd(fd);
8196 } else {
8197 return -EINVAL;
8198 }
463d0183 8199
4c476991
JB		 8200 if (IS_ERR(net))
8201 return PTR_ERR(net);
463d0183
JB		 8202
8203 err = 0;
8204
8205 /* check if anything to do */
4c476991
JB		 8206 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8207 err = cfg80211_switch_netns(rdev, net);
463d0183 8208
463d0183 8209 put_net(net);
463d0183
JB		 8210 return err;
8211}
8212
67fbb16b
SO		 8213static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8214{
4c476991 8215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8216 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8217 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8218 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8219 struct cfg80211_pmksa pmksa;
8220
8221 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8222
8223 if (!info->attrs[NL80211_ATTR_MAC])
8224 return -EINVAL;
8225
8226 if (!info->attrs[NL80211_ATTR_PMKID])
8227 return -EINVAL;
8228
67fbb16b
SO		 8229 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8230 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8231
074ac8df 8232 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8233 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8234 return -EOPNOTSUPP;
67fbb16b
SO		 8235
8236 switch (info->genlhdr->cmd) {
8237 case NL80211_CMD_SET_PMKSA:
8238 rdev_ops = rdev->ops->set_pmksa;
8239 break;
8240 case NL80211_CMD_DEL_PMKSA:
8241 rdev_ops = rdev->ops->del_pmksa;
8242 break;
8243 default:
8244 WARN_ON(1);
8245 break;
8246 }
8247
4c476991
JB		 8248 if (!rdev_ops)
8249 return -EOPNOTSUPP;
67fbb16b 8250
4c476991 8251 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8252}
8253
8254static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8255{
4c476991
JB		 8256 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8257 struct net_device *dev = info->user_ptr[1];
67fbb16b 8258
074ac8df 8259 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8260 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8261 return -EOPNOTSUPP;
67fbb16b 8262
4c476991
JB		 8263 if (!rdev->ops->flush_pmksa)
8264 return -EOPNOTSUPP;
67fbb16b 8265
e35e4d28 8266 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8267}
8268
109086ce
AN		 8269static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8270{
8271 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8272 struct net_device *dev = info->user_ptr[1];
8273 u8 action_code, dialog_token;
df942e7b 8274 u32 peer_capability = 0;
109086ce
AN		 8275 u16 status_code;
8276 u8 *peer;
31fa97c5 8277 bool initiator;
109086ce
AN		 8278
8279 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8280 !rdev->ops->tdls_mgmt)
8281 return -EOPNOTSUPP;
8282
8283 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8284 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8285 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8286 !info->attrs[NL80211_ATTR_IE] ||
8287 !info->attrs[NL80211_ATTR_MAC])
8288 return -EINVAL;
8289
8290 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8291 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8292 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8293 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8294 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8295 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8296 peer_capability =
8297 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8298
e35e4d28 8299 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8300 dialog_token, status_code, peer_capability,
31fa97c5 8301 initiator,
e35e4d28
HG		 8302 nla_data(info->attrs[NL80211_ATTR_IE]),
8303 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8304}
8305
8306static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8307{
8308 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8309 struct net_device *dev = info->user_ptr[1];
8310 enum nl80211_tdls_operation operation;
8311 u8 *peer;
8312
8313 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8314 !rdev->ops->tdls_oper)
8315 return -EOPNOTSUPP;
8316
8317 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8318 !info->attrs[NL80211_ATTR_MAC])
8319 return -EINVAL;
8320
8321 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8322 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8323
e35e4d28 8324 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8325}
8326
9588bbd5
JM		 8327static int nl80211_remain_on_channel(struct sk_buff *skb,
8328 struct genl_info *info)
8329{
4c476991 8330 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8331 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8332 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8333 struct sk_buff *msg;
8334 void *hdr;
8335 u64 cookie;
683b6d3b 8336 u32 duration;
9588bbd5
JM		 8337 int err;
8338
8339 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8340 !info->attrs[NL80211_ATTR_DURATION])
8341 return -EINVAL;
8342
8343 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8344
ebf348fc
JB		 8345 if (!rdev->ops->remain_on_channel ||
8346 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8347 return -EOPNOTSUPP;
8348
9588bbd5 8349 /*
ebf348fc
JB		 8350 * We should be on that channel for at least a minimum amount of
8351 * time (10ms) but no longer than the driver supports.
9588bbd5 8352 */
ebf348fc 8353 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8354 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8355 return -EINVAL;
8356
683b6d3b
JB		 8357 err = nl80211_parse_chandef(rdev, info, &chandef);
8358 if (err)
8359 return err;
9588bbd5
JM		 8360
8361 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8362 if (!msg)
8363 return -ENOMEM;
9588bbd5 8364
15e47304 8365 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8366 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8367 if (!hdr) {
8368 err = -ENOBUFS;
9588bbd5
JM		 8369 goto free_msg;
8370 }
8371
683b6d3b
JB		 8372 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8373 duration, &cookie);
9588bbd5
JM		 8374
8375 if (err)
8376 goto free_msg;
8377
9360ffd1
DM		 8378 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8379 goto nla_put_failure;
9588bbd5
JM		 8380
8381 genlmsg_end(msg, hdr);
4c476991
JB		 8382
8383 return genlmsg_reply(msg, info);
9588bbd5
JM		 8384
8385 nla_put_failure:
8386 err = -ENOBUFS;
8387 free_msg:
8388 nlmsg_free(msg);
9588bbd5
JM		 8389 return err;
8390}
8391
8392static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8393 struct genl_info *info)
8394{
4c476991 8395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8396 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8397 u64 cookie;
9588bbd5
JM		 8398
8399 if (!info->attrs[NL80211_ATTR_COOKIE])
8400 return -EINVAL;
8401
4c476991
JB		 8402 if (!rdev->ops->cancel_remain_on_channel)
8403 return -EOPNOTSUPP;
9588bbd5 8404
9588bbd5
JM		 8405 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8406
e35e4d28 8407 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8408}
8409
13ae75b1
JM		 8410static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8411 u8 *rates, u8 rates_len)
8412{
8413 u8 i;
8414 u32 mask = 0;
8415
8416 for (i = 0; i < rates_len; i++) {
8417 int rate = (rates[i] & 0x7f) * 5;
8418 int ridx;
8419 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8420 struct ieee80211_rate *srate =
8421 &sband->bitrates[ridx];
8422 if (rate == srate->bitrate) {
8423 mask |= 1 << ridx;
8424 break;
8425 }
8426 }
8427 if (ridx == sband->n_bitrates)
8428 return 0; /* rate not found */
8429 }
8430
8431 return mask;
8432}
8433
24db78c0
SW		 8434static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8435 u8 *rates, u8 rates_len,
8436 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8437{
8438 u8 i;
8439
8440 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8441
8442 for (i = 0; i < rates_len; i++) {
8443 int ridx, rbit;
8444
8445 ridx = rates[i] / 8;
8446 rbit = BIT(rates[i] % 8);
8447
8448 /* check validity */
910570b5 8449 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8450 return false;
8451
8452 /* check availability */
8453 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8454 mcs[ridx] |= rbit;
8455 else
8456 return false;
8457 }
8458
8459 return true;
8460}
8461
204e35a9
JD		 8462static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8463{
8464 u16 mcs_mask = 0;
8465
8466 switch (vht_mcs_map) {
8467 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8468 break;
8469 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8470 mcs_mask = 0x00FF;
8471 break;
8472 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8473 mcs_mask = 0x01FF;
8474 break;
8475 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8476 mcs_mask = 0x03FF;
8477 break;
8478 default:
8479 break;
8480 }
8481
8482 return mcs_mask;
8483}
8484
8485static void vht_build_mcs_mask(u16 vht_mcs_map,
8486 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8487{
8488 u8 nss;
8489
8490 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8491 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8492 vht_mcs_map >>= 2;
8493 }
8494}
8495
8496static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8497 struct nl80211_txrate_vht *txrate,
8498 u16 mcs[NL80211_VHT_NSS_MAX])
8499{
8500 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8501 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8502 u8 i;
8503
8504 if (!sband->vht_cap.vht_supported)
8505 return false;
8506
8507 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8508
8509 /* Build vht_mcs_mask from VHT capabilities */
8510 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8511
8512 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8513 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8514 mcs[i] = txrate->mcs[i];
8515 else
8516 return false;
8517 }
8518
8519 return true;
8520}
8521
b54452b0 8522static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8523 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8524 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8525 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8526 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8527 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8528 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8529};
8530
8531static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8532 struct genl_info *info)
8533{
8534 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8535 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8536 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8537 int rem, i;
8538 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8539 struct nlattr *tx_rates;
8540 struct ieee80211_supported_band *sband;
204e35a9 8541 u16 vht_tx_mcs_map;
13ae75b1 8542
4c476991
JB		 8543 if (!rdev->ops->set_bitrate_mask)
8544 return -EOPNOTSUPP;
13ae75b1
JM		 8545
8546 memset(&mask, 0, sizeof(mask));
8547 /* Default to all rates enabled */
8548 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8549 sband = rdev->wiphy.bands[i];
7869303b
JD		 8550
8551 if (!sband)
8552 continue;
8553
8554 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8555 memcpy(mask.control[i].ht_mcs,
7869303b 8556 sband->ht_cap.mcs.rx_mask,
d1e33e65 8557 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8558
8559 if (!sband->vht_cap.vht_supported)
8560 continue;
8561
8562 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8563 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8564 }
8565
b9243ab0
JD		 8566 /* if no rates are given set it back to the defaults */
8567 if (!info->attrs[NL80211_ATTR_TX_RATES])
8568 goto out;
8569
13ae75b1
JM		 8570 /*
8571 * The nested attribute uses enum nl80211_band as the index. This maps
8572 * directly to the enum ieee80211_band values used in cfg80211.
8573 */
24db78c0 8574 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8575 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8576 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8577 int err;
8578
4c476991
JB		 8579 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8580 return -EINVAL;
13ae75b1 8581 sband = rdev->wiphy.bands[band];
4c476991
JB		 8582 if (sband == NULL)
8583 return -EINVAL;
ae811e21
JB		 8584 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8585 nla_len(tx_rates), nl80211_txattr_policy);
8586 if (err)
8587 return err;
13ae75b1
JM		 8588 if (tb[NL80211_TXRATE_LEGACY]) {
8589 mask.control[band].legacy = rateset_to_mask(
8590 sband,
8591 nla_data(tb[NL80211_TXRATE_LEGACY]),
8592 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8593 if ((mask.control[band].legacy == 0) &&
8594 nla_len(tb[NL80211_TXRATE_LEGACY]))
8595 return -EINVAL;
24db78c0 8596 }
d1e33e65 8597 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8598 if (!ht_rateset_to_mask(
8599 sband,
d1e33e65
JD		 8600 nla_data(tb[NL80211_TXRATE_HT]),
8601 nla_len(tb[NL80211_TXRATE_HT]),
8602 mask.control[band].ht_mcs))
24db78c0
SW		 8603 return -EINVAL;
8604 }
204e35a9
JD		 8605 if (tb[NL80211_TXRATE_VHT]) {
8606 if (!vht_set_mcs_mask(
8607 sband,
8608 nla_data(tb[NL80211_TXRATE_VHT]),
8609 mask.control[band].vht_mcs))
8610 return -EINVAL;
8611 }
0b9323f6
JD		 8612 if (tb[NL80211_TXRATE_GI]) {
8613 mask.control[band].gi =
8614 nla_get_u8(tb[NL80211_TXRATE_GI]);
8615 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8616 return -EINVAL;
8617 }
24db78c0
SW		 8618
8619 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8620 /* don't allow empty legacy rates if HT or VHT
8621 * are not even supported.
8622 */
8623 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8624 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8625 return -EINVAL;
8626
8627 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8628 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8629 goto out;
8630
8631 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8632 if (mask.control[band].vht_mcs[i])
8633 goto out;
24db78c0
SW		 8634
8635 /* legacy and mcs rates may not be both empty */
204e35a9 8636 return -EINVAL;
13ae75b1
JM		 8637 }
8638 }
8639
b9243ab0 8640out:
e35e4d28 8641 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8642}
8643
2e161f78 8644static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8645{
4c476991 8646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8647 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8648 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8649
8650 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8651 return -EINVAL;
8652
2e161f78
JB		 8653 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8654 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8655
71bbc994
JB		 8656 switch (wdev->iftype) {
8657 case NL80211_IFTYPE_STATION:
8658 case NL80211_IFTYPE_ADHOC:
8659 case NL80211_IFTYPE_P2P_CLIENT:
8660 case NL80211_IFTYPE_AP:
8661 case NL80211_IFTYPE_AP_VLAN:
8662 case NL80211_IFTYPE_MESH_POINT:
8663 case NL80211_IFTYPE_P2P_GO:
98104fde 8664 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8665 break;
8666 default:
4c476991 8667 return -EOPNOTSUPP;
71bbc994 8668 }
026331c4
JM		 8669
8670 /* not much point in registering if we can't reply */
4c476991
JB		 8671 if (!rdev->ops->mgmt_tx)
8672 return -EOPNOTSUPP;
026331c4 8673
15e47304 8674 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8675 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8676 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8677}
8678
2e161f78 8679static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8680{
4c476991 8681 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8682 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8683 struct cfg80211_chan_def chandef;
026331c4 8684 int err;
d64d373f 8685 void *hdr = NULL;
026331c4 8686 u64 cookie;
e247bd90 8687 struct sk_buff *msg = NULL;
b176e629
AO		 8688 struct cfg80211_mgmt_tx_params params = {
8689 .dont_wait_for_ack =
8690 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8691 };
026331c4 8692
683b6d3b 8693 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8694 return -EINVAL;
8695
4c476991
JB		 8696 if (!rdev->ops->mgmt_tx)
8697 return -EOPNOTSUPP;
026331c4 8698
71bbc994 8699 switch (wdev->iftype) {
ea141b75
AQ		 8700 case NL80211_IFTYPE_P2P_DEVICE:
8701 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8702 return -EINVAL;
71bbc994
JB		 8703 case NL80211_IFTYPE_STATION:
8704 case NL80211_IFTYPE_ADHOC:
8705 case NL80211_IFTYPE_P2P_CLIENT:
8706 case NL80211_IFTYPE_AP:
8707 case NL80211_IFTYPE_AP_VLAN:
8708 case NL80211_IFTYPE_MESH_POINT:
8709 case NL80211_IFTYPE_P2P_GO:
8710 break;
8711 default:
4c476991 8712 return -EOPNOTSUPP;
71bbc994 8713 }
026331c4 8714
f7ca38df 8715 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8716 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8717 return -EINVAL;
b176e629 8718 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8719
8720 /*
8721 * We should wait on the channel for at least a minimum amount
8722 * of time (10ms) but no longer than the driver supports.
8723 */
b176e629
AO		 8724 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8725 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8726 return -EINVAL;
8727
f7ca38df
JB		 8728 }
8729
b176e629 8730 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8731
b176e629 8732 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8733 return -EINVAL;
8734
b176e629 8735 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8736
ea141b75
AQ		 8737 /* get the channel if any has been specified, otherwise pass NULL to
8738 * the driver. The latter will use the current one
8739 */
8740 chandef.chan = NULL;
8741 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8742 err = nl80211_parse_chandef(rdev, info, &chandef);
8743 if (err)
8744 return err;
8745 }
8746
b176e629 8747 if (!chandef.chan && params.offchan)
ea141b75 8748 return -EINVAL;
026331c4 8749
34d22ce2
AO		 8750 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8751 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8752
8753 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8754 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8755 int i;
8756
8757 if (len % sizeof(u16))
8758 return -EINVAL;
8759
8760 params.n_csa_offsets = len / sizeof(u16);
8761 params.csa_offsets =
8762 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8763
8764 /* check that all the offsets fit the frame */
8765 for (i = 0; i < params.n_csa_offsets; i++) {
8766 if (params.csa_offsets[i] >= params.len)
8767 return -EINVAL;
8768 }
8769 }
8770
b176e629 8771 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8772 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8773 if (!msg)
8774 return -ENOMEM;
026331c4 8775
15e47304 8776 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8777 NL80211_CMD_FRAME);
cb35fba3
DC		 8778 if (!hdr) {
8779 err = -ENOBUFS;
e247bd90
JB		 8780 goto free_msg;
8781 }
026331c4 8782 }
e247bd90 8783
b176e629
AO		 8784 params.chan = chandef.chan;
8785 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8786 if (err)
8787 goto free_msg;
8788
e247bd90 8789 if (msg) {
9360ffd1
DM		 8790 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8791 goto nla_put_failure;
026331c4 8792
e247bd90
JB		 8793 genlmsg_end(msg, hdr);
8794 return genlmsg_reply(msg, info);
8795 }
8796
8797 return 0;
026331c4
JM		 8798
8799 nla_put_failure:
8800 err = -ENOBUFS;
8801 free_msg:
8802 nlmsg_free(msg);
026331c4
JM		 8803 return err;
8804}
8805
f7ca38df
JB		 8806static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8807{
8808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8809 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8810 u64 cookie;
8811
8812 if (!info->attrs[NL80211_ATTR_COOKIE])
8813 return -EINVAL;
8814
8815 if (!rdev->ops->mgmt_tx_cancel_wait)
8816 return -EOPNOTSUPP;
8817
71bbc994
JB		 8818 switch (wdev->iftype) {
8819 case NL80211_IFTYPE_STATION:
8820 case NL80211_IFTYPE_ADHOC:
8821 case NL80211_IFTYPE_P2P_CLIENT:
8822 case NL80211_IFTYPE_AP:
8823 case NL80211_IFTYPE_AP_VLAN:
8824 case NL80211_IFTYPE_P2P_GO:
98104fde 8825 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8826 break;
8827 default:
f7ca38df 8828 return -EOPNOTSUPP;
71bbc994 8829 }
f7ca38df
JB		 8830
8831 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8832
e35e4d28 8833 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8834}
8835
ffb9eb3d
KV		 8836static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8837{
4c476991 8838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8839 struct wireless_dev *wdev;
4c476991 8840 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8841 u8 ps_state;
8842 bool state;
8843 int err;
8844
4c476991
JB		 8845 if (!info->attrs[NL80211_ATTR_PS_STATE])
8846 return -EINVAL;
ffb9eb3d
KV		 8847
8848 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8849
4c476991
JB		 8850 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8851 return -EINVAL;
ffb9eb3d
KV		 8852
8853 wdev = dev->ieee80211_ptr;
8854
4c476991
JB		 8855 if (!rdev->ops->set_power_mgmt)
8856 return -EOPNOTSUPP;
ffb9eb3d
KV		 8857
8858 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8859
8860 if (state == wdev->ps)
4c476991 8861 return 0;
ffb9eb3d 8862
e35e4d28 8863 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8864 if (!err)
8865 wdev->ps = state;
ffb9eb3d
KV		 8866 return err;
8867}
8868
8869static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8870{
4c476991 8871 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8872 enum nl80211_ps_state ps_state;
8873 struct wireless_dev *wdev;
4c476991 8874 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8875 struct sk_buff *msg;
8876 void *hdr;
8877 int err;
8878
ffb9eb3d
KV		 8879 wdev = dev->ieee80211_ptr;
8880
4c476991
JB		 8881 if (!rdev->ops->set_power_mgmt)
8882 return -EOPNOTSUPP;
ffb9eb3d
KV		 8883
8884 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8885 if (!msg)
8886 return -ENOMEM;
ffb9eb3d 8887
15e47304 8888 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8889 NL80211_CMD_GET_POWER_SAVE);
8890 if (!hdr) {
4c476991 8891 err = -ENOBUFS;
ffb9eb3d
KV		 8892 goto free_msg;
8893 }
8894
8895 if (wdev->ps)
8896 ps_state = NL80211_PS_ENABLED;
8897 else
8898 ps_state = NL80211_PS_DISABLED;
8899
9360ffd1
DM		 8900 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8901 goto nla_put_failure;
ffb9eb3d
KV		 8902
8903 genlmsg_end(msg, hdr);
4c476991 8904 return genlmsg_reply(msg, info);
ffb9eb3d 8905
4c476991 8906 nla_put_failure:
ffb9eb3d 8907 err = -ENOBUFS;
4c476991 8908 free_msg:
ffb9eb3d 8909 nlmsg_free(msg);
ffb9eb3d
KV		 8910 return err;
8911}
8912
94e860f1
JB		 8913static const struct nla_policy
8914nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8915 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8916 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8917 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8918 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8919 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8920 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8921};
8922
84f10708 8923static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8924 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8925{
8926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8927 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8928 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8929
d9d8b019 8930 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8931 return -EINVAL;
8932
84f10708
TP		 8933 if (!rdev->ops->set_cqm_txe_config)
8934 return -EOPNOTSUPP;
8935
8936 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8937 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8938 return -EOPNOTSUPP;
8939
e35e4d28 8940 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8941}
8942
d6dc1a38
JO		 8943static int nl80211_set_cqm_rssi(struct genl_info *info,
8944 s32 threshold, u32 hysteresis)
8945{
4c476991 8946 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8947 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8948 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8949
8950 if (threshold > 0)
8951 return -EINVAL;
8952
1da5fcc8
JB		 8953 /* disabling - hysteresis should also be zero then */
8954 if (threshold == 0)
8955 hysteresis = 0;
d6dc1a38 8956
4c476991
JB		 8957 if (!rdev->ops->set_cqm_rssi_config)
8958 return -EOPNOTSUPP;
d6dc1a38 8959
074ac8df 8960 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8961 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8962 return -EOPNOTSUPP;
d6dc1a38 8963
e35e4d28 8964 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8965}
8966
8967static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8968{
8969 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8970 struct nlattr *cqm;
8971 int err;
8972
8973 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8974 if (!cqm)
8975 return -EINVAL;
d6dc1a38
JO		 8976
8977 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8978 nl80211_attr_cqm_policy);
8979 if (err)
1da5fcc8 8980 return err;
d6dc1a38
JO		 8981
8982 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8983 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8984 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8985 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8986
1da5fcc8
JB		 8987 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8988 }
8989
8990 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8991 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8992 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8993 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8994 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8995 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8996
8997 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8998 }
8999
9000 return -EINVAL;
d6dc1a38
JO		 9001}
9002
6e0bd6c3
RL		 9003static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9004{
9005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9006 struct net_device *dev = info->user_ptr[1];
9007 struct ocb_setup setup = {};
9008 int err;
9009
9010 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9011 if (err)
9012 return err;
9013
9014 return cfg80211_join_ocb(rdev, dev, &setup);
9015}
9016
9017static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9018{
9019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9020 struct net_device *dev = info->user_ptr[1];
9021
9022 return cfg80211_leave_ocb(rdev, dev);
9023}
9024
29cbe68c
JB		 9025static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9026{
9027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9028 struct net_device *dev = info->user_ptr[1];
9029 struct mesh_config cfg;
c80d545d 9030 struct mesh_setup setup;
29cbe68c
JB		 9031 int err;
9032
9033 /* start with default */
9034 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 9035 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 9036
24bdd9f4 9037 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 9038 /* and parse parameters if given */
24bdd9f4 9039 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 9040 if (err)
9041 return err;
9042 }
9043
9044 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9045 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9046 return -EINVAL;
9047
c80d545d
JC		 9048 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9049 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9050
4bb62344
CYY		 9051 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9052 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9053 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9054 return -EINVAL;
9055
9bdbf04d
MP		 9056 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9057 setup.beacon_interval =
9058 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
9059 if (setup.beacon_interval < 10 ||
9060 setup.beacon_interval > 10000)
9061 return -EINVAL;
9062 }
9063
9064 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9065 setup.dtim_period =
9066 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9067 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9068 return -EINVAL;
9069 }
9070
c80d545d
JC		 9071 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9072 /* parse additional setup parameters if given */
9073 err = nl80211_parse_mesh_setup(info, &setup);
9074 if (err)
9075 return err;
9076 }
9077
d37bb18a
TP		 9078 if (setup.user_mpm)
9079 cfg.auto_open_plinks = false;
9080
cc1d2806 9081 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 9082 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9083 if (err)
9084 return err;
cc1d2806
JB		 9085 } else {
9086 /* cfg80211_join_mesh() will sort it out */
683b6d3b 9087 setup.chandef.chan = NULL;
cc1d2806
JB		 9088 }
9089
ffb3cf30
AN		 9090 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9091 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9092 int n_rates =
9093 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9094 struct ieee80211_supported_band *sband;
9095
9096 if (!setup.chandef.chan)
9097 return -EINVAL;
9098
9099 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9100
9101 err = ieee80211_get_ratemask(sband, rates, n_rates,
9102 &setup.basic_rates);
9103 if (err)
9104 return err;
9105 }
9106
c80d545d 9107 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 9108}
9109
9110static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9111{
9112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9113 struct net_device *dev = info->user_ptr[1];
9114
9115 return cfg80211_leave_mesh(rdev, dev);
9116}
9117
dfb89c56 9118#ifdef CONFIG_PM
bb92d199
AK		 9119static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9120 struct cfg80211_registered_device *rdev)
9121{
6abb9cb9 9122 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 9123 struct nlattr *nl_pats, *nl_pat;
9124 int i, pat_len;
9125
6abb9cb9 9126 if (!wowlan->n_patterns)
bb92d199
AK		 9127 return 0;
9128
9129 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9130 if (!nl_pats)
9131 return -ENOBUFS;
9132
6abb9cb9 9133 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 9134 nl_pat = nla_nest_start(msg, i + 1);
9135 if (!nl_pat)
9136 return -ENOBUFS;
6abb9cb9 9137 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 9138 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 9139 wowlan->patterns[i].mask) ||
50ac6607
AK		 9140 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9141 wowlan->patterns[i].pattern) ||
9142 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 9143 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 9144 return -ENOBUFS;
9145 nla_nest_end(msg, nl_pat);
9146 }
9147 nla_nest_end(msg, nl_pats);
9148
9149 return 0;
9150}
9151
2a0e047e
JB		 9152static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9153 struct cfg80211_wowlan_tcp *tcp)
9154{
9155 struct nlattr *nl_tcp;
9156
9157 if (!tcp)
9158 return 0;
9159
9160 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9161 if (!nl_tcp)
9162 return -ENOBUFS;
9163
930345ea
JB		 9164 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9165 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9166 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9167 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9168 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9169 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9170 tcp->payload_len, tcp->payload) ||
9171 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9172 tcp->data_interval) ||
9173 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9174 tcp->wake_len, tcp->wake_data) ||
9175 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9176 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9177 return -ENOBUFS;
9178
9179 if (tcp->payload_seq.len &&
9180 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9181 sizeof(tcp->payload_seq), &tcp->payload_seq))
9182 return -ENOBUFS;
9183
9184 if (tcp->payload_tok.len &&
9185 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9186 sizeof(tcp->payload_tok) + tcp->tokens_size,
9187 &tcp->payload_tok))
9188 return -ENOBUFS;
9189
e248ad30
JB		 9190 nla_nest_end(msg, nl_tcp);
9191
2a0e047e
JB		 9192 return 0;
9193}
9194
75453ccb
LC		 9195static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9196 struct cfg80211_sched_scan_request *req)
9197{
3b06d277 9198 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9199 int i;
9200
9201 if (!req)
9202 return 0;
9203
9204 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9205 if (!nd)
9206 return -ENOBUFS;
9207
3b06d277
AS		 9208 if (req->n_scan_plans == 1 &&
9209 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9210 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9211 return -ENOBUFS;
9212
21fea567
LC		 9213 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9214 return -ENOBUFS;
9215
75453ccb
LC		 9216 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9217 if (!freqs)
9218 return -ENOBUFS;
9219
9220 for (i = 0; i < req->n_channels; i++)
9221 nla_put_u32(msg, i, req->channels[i]->center_freq);
9222
9223 nla_nest_end(msg, freqs);
9224
9225 if (req->n_match_sets) {
9226 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9227 for (i = 0; i < req->n_match_sets; i++) {
9228 match = nla_nest_start(msg, i);
9229 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9230 req->match_sets[i].ssid.ssid_len,
9231 req->match_sets[i].ssid.ssid);
9232 nla_nest_end(msg, match);
9233 }
9234 nla_nest_end(msg, matches);
9235 }
9236
3b06d277
AS		 9237 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9238 if (!scan_plans)
9239 return -ENOBUFS;
9240
9241 for (i = 0; i < req->n_scan_plans; i++) {
9242 scan_plan = nla_nest_start(msg, i + 1);
9243 if (!scan_plan ||
9244 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9245 req->scan_plans[i].interval) ||
9246 (req->scan_plans[i].iterations &&
9247 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9248 req->scan_plans[i].iterations)))
9249 return -ENOBUFS;
9250 nla_nest_end(msg, scan_plan);
9251 }
9252 nla_nest_end(msg, scan_plans);
9253
75453ccb
LC		 9254 nla_nest_end(msg, nd);
9255
9256 return 0;
9257}
9258
ff1b6e69
JB		 9259static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9260{
9261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9262 struct sk_buff *msg;
9263 void *hdr;
2a0e047e 9264 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9265
964dc9e2 9266 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9267 return -EOPNOTSUPP;
9268
6abb9cb9 9269 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9270 /* adjust size to have room for all the data */
6abb9cb9
JB		 9271 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9272 rdev->wiphy.wowlan_config->tcp->payload_len +
9273 rdev->wiphy.wowlan_config->tcp->wake_len +
9274 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9275 }
9276
9277 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9278 if (!msg)
9279 return -ENOMEM;
9280
15e47304 9281 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9282 NL80211_CMD_GET_WOWLAN);
9283 if (!hdr)
9284 goto nla_put_failure;
9285
6abb9cb9 9286 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9287 struct nlattr *nl_wowlan;
9288
9289 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9290 if (!nl_wowlan)
9291 goto nla_put_failure;
9292
6abb9cb9 9293 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9294 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9295 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9296 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9297 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9298 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9299 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9300 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9301 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9303 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9304 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9305 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9306 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9307 goto nla_put_failure;
2a0e047e 9308
bb92d199
AK		 9309 if (nl80211_send_wowlan_patterns(msg, rdev))
9310 goto nla_put_failure;
2a0e047e 9311
6abb9cb9
JB		 9312 if (nl80211_send_wowlan_tcp(msg,
9313 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9314 goto nla_put_failure;
75453ccb
LC		 9315
9316 if (nl80211_send_wowlan_nd(
9317 msg,
9318 rdev->wiphy.wowlan_config->nd_config))
9319 goto nla_put_failure;
2a0e047e 9320
ff1b6e69
JB		 9321 nla_nest_end(msg, nl_wowlan);
9322 }
9323
9324 genlmsg_end(msg, hdr);
9325 return genlmsg_reply(msg, info);
9326
9327nla_put_failure:
9328 nlmsg_free(msg);
9329 return -ENOBUFS;
9330}
9331
2a0e047e
JB		 9332static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9333 struct nlattr *attr,
9334 struct cfg80211_wowlan *trig)
9335{
9336 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9337 struct cfg80211_wowlan_tcp *cfg;
9338 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9339 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9340 u32 size;
9341 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9342 int err, port;
9343
964dc9e2 9344 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9345 return -EINVAL;
9346
9347 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9348 nla_data(attr), nla_len(attr),
9349 nl80211_wowlan_tcp_policy);
9350 if (err)
9351 return err;
9352
9353 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9354 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9355 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9356 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9357 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9358 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9359 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9360 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9361 return -EINVAL;
9362
9363 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9364 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9365 return -EINVAL;
9366
9367 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9368 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9369 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9370 return -EINVAL;
9371
9372 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9373 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9374 return -EINVAL;
9375
9376 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9377 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9378 return -EINVAL;
9379
9380 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9381 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9382
9383 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9384 tokens_size = tokln - sizeof(*tok);
9385
9386 if (!tok->len || tokens_size % tok->len)
9387 return -EINVAL;
964dc9e2 9388 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9389 return -EINVAL;
964dc9e2 9390 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9391 return -EINVAL;
964dc9e2 9392 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9393 return -EINVAL;
964dc9e2 9394 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9395 return -EINVAL;
9396 if (tok->offset + tok->len > data_size)
9397 return -EINVAL;
9398 }
9399
9400 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9401 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9402 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9403 return -EINVAL;
9404 if (seq->len == 0 || seq->len > 4)
9405 return -EINVAL;
9406 if (seq->len + seq->offset > data_size)
9407 return -EINVAL;
9408 }
9409
9410 size = sizeof(*cfg);
9411 size += data_size;
9412 size += wake_size + wake_mask_size;
9413 size += tokens_size;
9414
9415 cfg = kzalloc(size, GFP_KERNEL);
9416 if (!cfg)
9417 return -ENOMEM;
67b61f6c
JB		 9418 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9419 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9420 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9421 ETH_ALEN);
9422 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9423 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9424 else
9425 port = 0;
9426#ifdef CONFIG_INET
9427 /* allocate a socket and port for it and use it */
9428 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9429 IPPROTO_TCP, &cfg->sock, 1);
9430 if (err) {
9431 kfree(cfg);
9432 return err;
9433 }
9434 if (inet_csk_get_port(cfg->sock->sk, port)) {
9435 sock_release(cfg->sock);
9436 kfree(cfg);
9437 return -EADDRINUSE;
9438 }
9439 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9440#else
9441 if (!port) {
9442 kfree(cfg);
9443 return -EINVAL;
9444 }
9445 cfg->src_port = port;
9446#endif
9447
9448 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9449 cfg->payload_len = data_size;
9450 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9451 memcpy((void *)cfg->payload,
9452 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9453 data_size);
9454 if (seq)
9455 cfg->payload_seq = *seq;
9456 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9457 cfg->wake_len = wake_size;
9458 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9459 memcpy((void *)cfg->wake_data,
9460 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9461 wake_size);
9462 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9463 data_size + wake_size;
9464 memcpy((void *)cfg->wake_mask,
9465 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9466 wake_mask_size);
9467 if (tok) {
9468 cfg->tokens_size = tokens_size;
9469 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9470 }
9471
9472 trig->tcp = cfg;
9473
9474 return 0;
9475}
9476
8cd4d456
LC		 9477static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9478 const struct wiphy_wowlan_support *wowlan,
9479 struct nlattr *attr,
9480 struct cfg80211_wowlan *trig)
9481{
9482 struct nlattr **tb;
9483 int err;
9484
9485 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9486 if (!tb)
9487 return -ENOMEM;
9488
9489 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9490 err = -EOPNOTSUPP;
9491 goto out;
9492 }
9493
9494 err = nla_parse(tb, NL80211_ATTR_MAX,
9495 nla_data(attr), nla_len(attr),
9496 nl80211_policy);
9497 if (err)
9498 goto out;
9499
ad2b26ab 9500 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9501 err = PTR_ERR_OR_ZERO(trig->nd_config);
9502 if (err)
9503 trig->nd_config = NULL;
9504
9505out:
9506 kfree(tb);
9507 return err;
9508}
9509
ff1b6e69
JB		 9510static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9511{
9512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9513 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9514 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9515 struct cfg80211_wowlan *ntrig;
964dc9e2 9516 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9517 int err, i;
6abb9cb9 9518 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9519 bool regular = false;
ff1b6e69 9520
964dc9e2 9521 if (!wowlan)
ff1b6e69
JB		 9522 return -EOPNOTSUPP;
9523
ae33bd81
JB		 9524 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9525 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9526 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9527 goto set_wakeup;
9528 }
ff1b6e69
JB		 9529
9530 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9531 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9532 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9533 nl80211_wowlan_policy);
9534 if (err)
9535 return err;
9536
9537 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9538 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9539 return -EINVAL;
9540 new_triggers.any = true;
9541 }
9542
9543 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9544 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9545 return -EINVAL;
9546 new_triggers.disconnect = true;
98fc4386 9547 regular = true;
ff1b6e69
JB		 9548 }
9549
9550 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9551 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9552 return -EINVAL;
9553 new_triggers.magic_pkt = true;
98fc4386 9554 regular = true;
ff1b6e69
JB		 9555 }
9556
77dbbb13
JB		 9557 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9558 return -EINVAL;
9559
9560 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9561 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9562 return -EINVAL;
9563 new_triggers.gtk_rekey_failure = true;
98fc4386 9564 regular = true;
77dbbb13
JB		 9565 }
9566
9567 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9568 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9569 return -EINVAL;
9570 new_triggers.eap_identity_req = true;
98fc4386 9571 regular = true;
77dbbb13
JB		 9572 }
9573
9574 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9575 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9576 return -EINVAL;
9577 new_triggers.four_way_handshake = true;
98fc4386 9578 regular = true;
77dbbb13
JB		 9579 }
9580
9581 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9582 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9583 return -EINVAL;
9584 new_triggers.rfkill_release = true;
98fc4386 9585 regular = true;
77dbbb13
JB		 9586 }
9587
ff1b6e69
JB		 9588 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9589 struct nlattr *pat;
9590 int n_patterns = 0;
bb92d199 9591 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9592 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9593
98fc4386
JB		 9594 regular = true;
9595
ff1b6e69
JB		 9596 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9597 rem)
9598 n_patterns++;
9599 if (n_patterns > wowlan->n_patterns)
9600 return -EINVAL;
9601
9602 new_triggers.patterns = kcalloc(n_patterns,
9603 sizeof(new_triggers.patterns[0]),
9604 GFP_KERNEL);
9605 if (!new_triggers.patterns)
9606 return -ENOMEM;
9607
9608 new_triggers.n_patterns = n_patterns;
9609 i = 0;
9610
9611 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9612 rem) {
922bd80f
JB		 9613 u8 *mask_pat;
9614
50ac6607
AK		 9615 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9616 nla_len(pat), NULL);
ff1b6e69 9617 err = -EINVAL;
50ac6607
AK		 9618 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9619 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9620 goto error;
50ac6607 9621 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9622 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9623 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9624 goto error;
9625 if (pat_len > wowlan->pattern_max_len ||
9626 pat_len < wowlan->pattern_min_len)
9627 goto error;
9628
50ac6607 9629 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9630 pkt_offset = 0;
9631 else
9632 pkt_offset = nla_get_u32(
50ac6607 9633 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9634 if (pkt_offset > wowlan->max_pkt_offset)
9635 goto error;
9636 new_triggers.patterns[i].pkt_offset = pkt_offset;
9637
922bd80f
JB		 9638 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9639 if (!mask_pat) {
ff1b6e69
JB		 9640 err = -ENOMEM;
9641 goto error;
9642 }
922bd80f
JB		 9643 new_triggers.patterns[i].mask = mask_pat;
9644 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9645 mask_len);
922bd80f
JB		 9646 mask_pat += mask_len;
9647 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9648 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9649 memcpy(mask_pat,
50ac6607 9650 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9651 pat_len);
9652 i++;
9653 }
9654 }
9655
2a0e047e 9656 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9657 regular = true;
2a0e047e
JB		 9658 err = nl80211_parse_wowlan_tcp(
9659 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9660 &new_triggers);
9661 if (err)
9662 goto error;
9663 }
9664
8cd4d456 9665 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9666 regular = true;
8cd4d456
LC		 9667 err = nl80211_parse_wowlan_nd(
9668 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9669 &new_triggers);
9670 if (err)
9671 goto error;
9672 }
9673
98fc4386
JB		 9674 /* The 'any' trigger means the device continues operating more or less
9675 * as in its normal operation mode and wakes up the host on most of the
9676 * normal interrupts (like packet RX, ...)
9677 * It therefore makes little sense to combine with the more constrained
9678 * wakeup trigger modes.
9679 */
9680 if (new_triggers.any && regular) {
9681 err = -EINVAL;
9682 goto error;
9683 }
9684
ae33bd81
JB		 9685 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9686 if (!ntrig) {
9687 err = -ENOMEM;
9688 goto error;
ff1b6e69 9689 }
ae33bd81 9690 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9691 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9692
ae33bd81 9693 set_wakeup:
6abb9cb9
JB		 9694 if (rdev->ops->set_wakeup &&
9695 prev_enabled != !!rdev->wiphy.wowlan_config)
9696 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9697
ff1b6e69
JB		 9698 return 0;
9699 error:
9700 for (i = 0; i < new_triggers.n_patterns; i++)
9701 kfree(new_triggers.patterns[i].mask);
9702 kfree(new_triggers.patterns);
2a0e047e
JB		 9703 if (new_triggers.tcp && new_triggers.tcp->sock)
9704 sock_release(new_triggers.tcp->sock);
9705 kfree(new_triggers.tcp);
e5dbe070 9706 kfree(new_triggers.nd_config);
ff1b6e69
JB		 9707 return err;
9708}
dfb89c56 9709#endif
ff1b6e69 9710
be29b99a
AK		 9711static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9712 struct cfg80211_registered_device *rdev)
9713{
9714 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9715 int i, j, pat_len;
9716 struct cfg80211_coalesce_rules *rule;
9717
9718 if (!rdev->coalesce->n_rules)
9719 return 0;
9720
9721 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9722 if (!nl_rules)
9723 return -ENOBUFS;
9724
9725 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9726 nl_rule = nla_nest_start(msg, i + 1);
9727 if (!nl_rule)
9728 return -ENOBUFS;
9729
9730 rule = &rdev->coalesce->rules[i];
9731 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9732 rule->delay))
9733 return -ENOBUFS;
9734
9735 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9736 rule->condition))
9737 return -ENOBUFS;
9738
9739 nl_pats = nla_nest_start(msg,
9740 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9741 if (!nl_pats)
9742 return -ENOBUFS;
9743
9744 for (j = 0; j < rule->n_patterns; j++) {
9745 nl_pat = nla_nest_start(msg, j + 1);
9746 if (!nl_pat)
9747 return -ENOBUFS;
9748 pat_len = rule->patterns[j].pattern_len;
9749 if (nla_put(msg, NL80211_PKTPAT_MASK,
9750 DIV_ROUND_UP(pat_len, 8),
9751 rule->patterns[j].mask) ||
9752 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9753 rule->patterns[j].pattern) ||
9754 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9755 rule->patterns[j].pkt_offset))
9756 return -ENOBUFS;
9757 nla_nest_end(msg, nl_pat);
9758 }
9759 nla_nest_end(msg, nl_pats);
9760 nla_nest_end(msg, nl_rule);
9761 }
9762 nla_nest_end(msg, nl_rules);
9763
9764 return 0;
9765}
9766
9767static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9768{
9769 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9770 struct sk_buff *msg;
9771 void *hdr;
9772
9773 if (!rdev->wiphy.coalesce)
9774 return -EOPNOTSUPP;
9775
9776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9777 if (!msg)
9778 return -ENOMEM;
9779
9780 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9781 NL80211_CMD_GET_COALESCE);
9782 if (!hdr)
9783 goto nla_put_failure;
9784
9785 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9786 goto nla_put_failure;
9787
9788 genlmsg_end(msg, hdr);
9789 return genlmsg_reply(msg, info);
9790
9791nla_put_failure:
9792 nlmsg_free(msg);
9793 return -ENOBUFS;
9794}
9795
9796void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9797{
9798 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9799 int i, j;
9800 struct cfg80211_coalesce_rules *rule;
9801
9802 if (!coalesce)
9803 return;
9804
9805 for (i = 0; i < coalesce->n_rules; i++) {
9806 rule = &coalesce->rules[i];
9807 for (j = 0; j < rule->n_patterns; j++)
9808 kfree(rule->patterns[j].mask);
9809 kfree(rule->patterns);
9810 }
9811 kfree(coalesce->rules);
9812 kfree(coalesce);
9813 rdev->coalesce = NULL;
9814}
9815
9816static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9817 struct nlattr *rule,
9818 struct cfg80211_coalesce_rules *new_rule)
9819{
9820 int err, i;
9821 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9822 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9823 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9824 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9825
9826 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9827 nla_len(rule), nl80211_coalesce_policy);
9828 if (err)
9829 return err;
9830
9831 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9832 new_rule->delay =
9833 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9834 if (new_rule->delay > coalesce->max_delay)
9835 return -EINVAL;
9836
9837 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9838 new_rule->condition =
9839 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9840 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9841 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9842 return -EINVAL;
9843
9844 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9845 return -EINVAL;
9846
9847 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9848 rem)
9849 n_patterns++;
9850 if (n_patterns > coalesce->n_patterns)
9851 return -EINVAL;
9852
9853 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9854 GFP_KERNEL);
9855 if (!new_rule->patterns)
9856 return -ENOMEM;
9857
9858 new_rule->n_patterns = n_patterns;
9859 i = 0;
9860
9861 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9862 rem) {
922bd80f
JB		 9863 u8 *mask_pat;
9864
be29b99a
AK		 9865 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9866 nla_len(pat), NULL);
9867 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9868 !pat_tb[NL80211_PKTPAT_PATTERN])
9869 return -EINVAL;
9870 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9871 mask_len = DIV_ROUND_UP(pat_len, 8);
9872 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9873 return -EINVAL;
9874 if (pat_len > coalesce->pattern_max_len ||
9875 pat_len < coalesce->pattern_min_len)
9876 return -EINVAL;
9877
9878 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9879 pkt_offset = 0;
9880 else
9881 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9882 if (pkt_offset > coalesce->max_pkt_offset)
9883 return -EINVAL;
9884 new_rule->patterns[i].pkt_offset = pkt_offset;
9885
922bd80f
JB		 9886 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9887 if (!mask_pat)
be29b99a 9888 return -ENOMEM;
922bd80f
JB		 9889
9890 new_rule->patterns[i].mask = mask_pat;
9891 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9892 mask_len);
9893
9894 mask_pat += mask_len;
9895 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9896 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9897 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9898 pat_len);
be29b99a
AK		 9899 i++;
9900 }
9901
9902 return 0;
9903}
9904
9905static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9906{
9907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9908 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9909 struct cfg80211_coalesce new_coalesce = {};
9910 struct cfg80211_coalesce *n_coalesce;
9911 int err, rem_rule, n_rules = 0, i, j;
9912 struct nlattr *rule;
9913 struct cfg80211_coalesce_rules *tmp_rule;
9914
9915 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9916 return -EOPNOTSUPP;
9917
9918 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9919 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 9920 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 9921 return 0;
9922 }
9923
9924 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9925 rem_rule)
9926 n_rules++;
9927 if (n_rules > coalesce->n_rules)
9928 return -EINVAL;
9929
9930 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9931 GFP_KERNEL);
9932 if (!new_coalesce.rules)
9933 return -ENOMEM;
9934
9935 new_coalesce.n_rules = n_rules;
9936 i = 0;
9937
9938 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9939 rem_rule) {
9940 err = nl80211_parse_coalesce_rule(rdev, rule,
9941 &new_coalesce.rules[i]);
9942 if (err)
9943 goto error;
9944
9945 i++;
9946 }
9947
a1056b1b 9948 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 9949 if (err)
9950 goto error;
9951
9952 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9953 if (!n_coalesce) {
9954 err = -ENOMEM;
9955 goto error;
9956 }
9957 cfg80211_rdev_free_coalesce(rdev);
9958 rdev->coalesce = n_coalesce;
9959
9960 return 0;
9961error:
9962 for (i = 0; i < new_coalesce.n_rules; i++) {
9963 tmp_rule = &new_coalesce.rules[i];
9964 for (j = 0; j < tmp_rule->n_patterns; j++)
9965 kfree(tmp_rule->patterns[j].mask);
9966 kfree(tmp_rule->patterns);
9967 }
9968 kfree(new_coalesce.rules);
9969
9970 return err;
9971}
9972
e5497d76
JB		 9973static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9974{
9975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9976 struct net_device *dev = info->user_ptr[1];
9977 struct wireless_dev *wdev = dev->ieee80211_ptr;
9978 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9979 struct cfg80211_gtk_rekey_data rekey_data;
9980 int err;
9981
9982 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9983 return -EINVAL;
9984
9985 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9986 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9987 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9988 nl80211_rekey_policy);
9989 if (err)
9990 return err;
9991
9992 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9993 return -ERANGE;
9994 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9995 return -ERANGE;
9996 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9997 return -ERANGE;
9998
78f686ca
JB		 9999 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10000 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10001 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 10002
10003 wdev_lock(wdev);
10004 if (!wdev->current_bss) {
10005 err = -ENOTCONN;
10006 goto out;
10007 }
10008
10009 if (!rdev->ops->set_rekey_data) {
10010 err = -EOPNOTSUPP;
10011 goto out;
10012 }
10013
e35e4d28 10014 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 10015 out:
10016 wdev_unlock(wdev);
10017 return err;
10018}
10019
28946da7
JB		 10020static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10021 struct genl_info *info)
10022{
10023 struct net_device *dev = info->user_ptr[1];
10024 struct wireless_dev *wdev = dev->ieee80211_ptr;
10025
10026 if (wdev->iftype != NL80211_IFTYPE_AP &&
10027 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10028 return -EINVAL;
10029
15e47304 10030 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 10031 return -EBUSY;
10032
15e47304 10033 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 10034 return 0;
10035}
10036
7f6cf311
JB		 10037static int nl80211_probe_client(struct sk_buff *skb,
10038 struct genl_info *info)
10039{
10040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10041 struct net_device *dev = info->user_ptr[1];
10042 struct wireless_dev *wdev = dev->ieee80211_ptr;
10043 struct sk_buff *msg;
10044 void *hdr;
10045 const u8 *addr;
10046 u64 cookie;
10047 int err;
10048
10049 if (wdev->iftype != NL80211_IFTYPE_AP &&
10050 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10051 return -EOPNOTSUPP;
10052
10053 if (!info->attrs[NL80211_ATTR_MAC])
10054 return -EINVAL;
10055
10056 if (!rdev->ops->probe_client)
10057 return -EOPNOTSUPP;
10058
10059 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10060 if (!msg)
10061 return -ENOMEM;
10062
15e47304 10063 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 10064 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 10065 if (!hdr) {
10066 err = -ENOBUFS;
7f6cf311
JB		 10067 goto free_msg;
10068 }
10069
10070 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10071
e35e4d28 10072 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 10073 if (err)
10074 goto free_msg;
10075
9360ffd1
DM		 10076 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10077 goto nla_put_failure;
7f6cf311
JB		 10078
10079 genlmsg_end(msg, hdr);
10080
10081 return genlmsg_reply(msg, info);
10082
10083 nla_put_failure:
10084 err = -ENOBUFS;
10085 free_msg:
10086 nlmsg_free(msg);
10087 return err;
10088}
10089
5e760230
JB		 10090static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10091{
10092 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 10093 struct cfg80211_beacon_registration *reg, *nreg;
10094 int rv;
5e760230
JB		 10095
10096 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10097 return -EOPNOTSUPP;
10098
37c73b5f
BG		 10099 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10100 if (!nreg)
10101 return -ENOMEM;
10102
10103 /* First, check if already registered. */
10104 spin_lock_bh(&rdev->beacon_registrations_lock);
10105 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10106 if (reg->nlportid == info->snd_portid) {
10107 rv = -EALREADY;
10108 goto out_err;
10109 }
10110 }
10111 /* Add it to the list */
10112 nreg->nlportid = info->snd_portid;
10113 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 10114
37c73b5f 10115 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10116
10117 return 0;
37c73b5f
BG		 10118out_err:
10119 spin_unlock_bh(&rdev->beacon_registrations_lock);
10120 kfree(nreg);
10121 return rv;
5e760230
JB		 10122}
10123
98104fde
JB		 10124static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10125{
10126 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10127 struct wireless_dev *wdev = info->user_ptr[1];
10128 int err;
10129
10130 if (!rdev->ops->start_p2p_device)
10131 return -EOPNOTSUPP;
10132
10133 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10134 return -EOPNOTSUPP;
10135
10136 if (wdev->p2p_started)
10137 return 0;
10138
b6a55015
LC		 10139 if (rfkill_blocked(rdev->rfkill))
10140 return -ERFKILL;
98104fde 10141
eeb126e9 10142 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 10143 if (err)
10144 return err;
10145
10146 wdev->p2p_started = true;
98104fde 10147 rdev->opencount++;
98104fde
JB		 10148
10149 return 0;
10150}
10151
10152static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10153{
10154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10155 struct wireless_dev *wdev = info->user_ptr[1];
10156
10157 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10158 return -EOPNOTSUPP;
10159
10160 if (!rdev->ops->stop_p2p_device)
10161 return -EOPNOTSUPP;
10162
f9f47529 10163 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 10164
10165 return 0;
10166}
10167
3713b4e3
JB		 10168static int nl80211_get_protocol_features(struct sk_buff *skb,
10169 struct genl_info *info)
10170{
10171 void *hdr;
10172 struct sk_buff *msg;
10173
10174 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10175 if (!msg)
10176 return -ENOMEM;
10177
10178 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10179 NL80211_CMD_GET_PROTOCOL_FEATURES);
10180 if (!hdr)
10181 goto nla_put_failure;
10182
10183 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10184 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10185 goto nla_put_failure;
10186
10187 genlmsg_end(msg, hdr);
10188 return genlmsg_reply(msg, info);
10189
10190 nla_put_failure:
10191 kfree_skb(msg);
10192 return -ENOBUFS;
10193}
10194
355199e0
JM		 10195static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10196{
10197 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10198 struct cfg80211_update_ft_ies_params ft_params;
10199 struct net_device *dev = info->user_ptr[1];
10200
10201 if (!rdev->ops->update_ft_ies)
10202 return -EOPNOTSUPP;
10203
10204 if (!info->attrs[NL80211_ATTR_MDID] ||
10205 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10206 return -EINVAL;
10207
10208 memset(&ft_params, 0, sizeof(ft_params));
10209 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10210 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10211 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10212
10213 return rdev_update_ft_ies(rdev, dev, &ft_params);
10214}
10215
5de17984
AS		 10216static int nl80211_crit_protocol_start(struct sk_buff *skb,
10217 struct genl_info *info)
10218{
10219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10220 struct wireless_dev *wdev = info->user_ptr[1];
10221 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10222 u16 duration;
10223 int ret;
10224
10225 if (!rdev->ops->crit_proto_start)
10226 return -EOPNOTSUPP;
10227
10228 if (WARN_ON(!rdev->ops->crit_proto_stop))
10229 return -EINVAL;
10230
10231 if (rdev->crit_proto_nlportid)
10232 return -EBUSY;
10233
10234 /* determine protocol if provided */
10235 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10236 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10237
10238 if (proto >= NUM_NL80211_CRIT_PROTO)
10239 return -EINVAL;
10240
10241 /* timeout must be provided */
10242 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10243 return -EINVAL;
10244
10245 duration =
10246 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10247
10248 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10249 return -ERANGE;
10250
10251 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10252 if (!ret)
10253 rdev->crit_proto_nlportid = info->snd_portid;
10254
10255 return ret;
10256}
10257
10258static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10259 struct genl_info *info)
10260{
10261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10262 struct wireless_dev *wdev = info->user_ptr[1];
10263
10264 if (!rdev->ops->crit_proto_stop)
10265 return -EOPNOTSUPP;
10266
10267 if (rdev->crit_proto_nlportid) {
10268 rdev->crit_proto_nlportid = 0;
10269 rdev_crit_proto_stop(rdev, wdev);
10270 }
10271 return 0;
10272}
10273
ad7e718c
JB		 10274static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10275{
10276 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10277 struct wireless_dev *wdev =
10278 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10279 int i, err;
10280 u32 vid, subcmd;
10281
10282 if (!rdev->wiphy.vendor_commands)
10283 return -EOPNOTSUPP;
10284
10285 if (IS_ERR(wdev)) {
10286 err = PTR_ERR(wdev);
10287 if (err != -EINVAL)
10288 return err;
10289 wdev = NULL;
10290 } else if (wdev->wiphy != &rdev->wiphy) {
10291 return -EINVAL;
10292 }
10293
10294 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10295 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10296 return -EINVAL;
10297
10298 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10299 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10300 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10301 const struct wiphy_vendor_command *vcmd;
10302 void *data = NULL;
10303 int len = 0;
10304
10305 vcmd = &rdev->wiphy.vendor_commands[i];
10306
10307 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10308 continue;
10309
10310 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10311 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10312 if (!wdev)
10313 return -EINVAL;
10314 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10315 !wdev->netdev)
10316 return -EINVAL;
10317
10318 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10319 if (wdev->netdev &&
10320 !netif_running(wdev->netdev))
10321 return -ENETDOWN;
10322 if (!wdev->netdev && !wdev->p2p_started)
10323 return -ENETDOWN;
10324 }
7bdbe400
JB		 10325
10326 if (!vcmd->doit)
10327 return -EOPNOTSUPP;
ad7e718c
JB		 10328 } else {
10329 wdev = NULL;
10330 }
10331
10332 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10333 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10334 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10335 }
10336
10337 rdev->cur_cmd_info = info;
10338 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10339 data, len);
10340 rdev->cur_cmd_info = NULL;
10341 return err;
10342 }
10343
10344 return -EOPNOTSUPP;
10345}
10346
7bdbe400
JB		 10347static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10348 struct netlink_callback *cb,
10349 struct cfg80211_registered_device **rdev,
10350 struct wireless_dev **wdev)
10351{
10352 u32 vid, subcmd;
10353 unsigned int i;
10354 int vcmd_idx = -1;
10355 int err;
10356 void *data = NULL;
10357 unsigned int data_len = 0;
10358
10359 rtnl_lock();
10360
10361 if (cb->args[0]) {
10362 /* subtract the 1 again here */
10363 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10364 struct wireless_dev *tmp;
10365
10366 if (!wiphy) {
10367 err = -ENODEV;
10368 goto out_unlock;
10369 }
10370 *rdev = wiphy_to_rdev(wiphy);
10371 *wdev = NULL;
10372
10373 if (cb->args[1]) {
10374 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
10375 if (tmp->identifier == cb->args[1] - 1) {
10376 *wdev = tmp;
10377 break;
10378 }
10379 }
10380 }
10381
10382 /* keep rtnl locked in successful case */
10383 return 0;
10384 }
10385
10386 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10387 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10388 nl80211_policy);
10389 if (err)
10390 goto out_unlock;
10391
10392 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10393 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10394 err = -EINVAL;
10395 goto out_unlock;
10396 }
10397
10398 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10399 nl80211_fam.attrbuf);
10400 if (IS_ERR(*wdev))
10401 *wdev = NULL;
10402
10403 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10404 nl80211_fam.attrbuf);
10405 if (IS_ERR(*rdev)) {
10406 err = PTR_ERR(*rdev);
10407 goto out_unlock;
10408 }
10409
10410 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10411 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10412
10413 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10414 const struct wiphy_vendor_command *vcmd;
10415
10416 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10417
10418 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10419 continue;
10420
10421 if (!vcmd->dumpit) {
10422 err = -EOPNOTSUPP;
10423 goto out_unlock;
10424 }
10425
10426 vcmd_idx = i;
10427 break;
10428 }
10429
10430 if (vcmd_idx < 0) {
10431 err = -EOPNOTSUPP;
10432 goto out_unlock;
10433 }
10434
10435 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10436 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10437 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10438 }
10439
10440 /* 0 is the first index - add 1 to parse only once */
10441 cb->args[0] = (*rdev)->wiphy_idx + 1;
10442 /* add 1 to know if it was NULL */
10443 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10444 cb->args[2] = vcmd_idx;
10445 cb->args[3] = (unsigned long)data;
10446 cb->args[4] = data_len;
10447
10448 /* keep rtnl locked in successful case */
10449 return 0;
10450 out_unlock:
10451 rtnl_unlock();
10452 return err;
10453}
10454
10455static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10456 struct netlink_callback *cb)
10457{
10458 struct cfg80211_registered_device *rdev;
10459 struct wireless_dev *wdev;
10460 unsigned int vcmd_idx;
10461 const struct wiphy_vendor_command *vcmd;
10462 void *data;
10463 int data_len;
10464 int err;
10465 struct nlattr *vendor_data;
10466
10467 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10468 if (err)
10469 return err;
10470
10471 vcmd_idx = cb->args[2];
10472 data = (void *)cb->args[3];
10473 data_len = cb->args[4];
10474 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10475
10476 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10477 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10478 if (!wdev)
10479 return -EINVAL;
10480 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10481 !wdev->netdev)
10482 return -EINVAL;
10483
10484 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10485 if (wdev->netdev &&
10486 !netif_running(wdev->netdev))
10487 return -ENETDOWN;
10488 if (!wdev->netdev && !wdev->p2p_started)
10489 return -ENETDOWN;
10490 }
10491 }
10492
10493 while (1) {
10494 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10495 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10496 NL80211_CMD_VENDOR);
10497 if (!hdr)
10498 break;
10499
10500 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10501 (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV,
10502 wdev_id(wdev)))) {
10503 genlmsg_cancel(skb, hdr);
10504 break;
10505 }
10506
10507 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10508 if (!vendor_data) {
10509 genlmsg_cancel(skb, hdr);
10510 break;
10511 }
10512
10513 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10514 (unsigned long *)&cb->args[5]);
10515 nla_nest_end(skb, vendor_data);
10516
10517 if (err == -ENOBUFS || err == -ENOENT) {
10518 genlmsg_cancel(skb, hdr);
10519 break;
10520 } else if (err) {
10521 genlmsg_cancel(skb, hdr);
10522 goto out;
10523 }
10524
10525 genlmsg_end(skb, hdr);
10526 }
10527
10528 err = skb->len;
10529 out:
10530 rtnl_unlock();
10531 return err;
10532}
10533
ad7e718c
JB		 10534struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10535 enum nl80211_commands cmd,
10536 enum nl80211_attrs attr,
10537 int approxlen)
10538{
f26cbf40 10539 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10540
10541 if (WARN_ON(!rdev->cur_cmd_info))
10542 return NULL;
10543
6c09e791 10544 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10545 rdev->cur_cmd_info->snd_portid,
10546 rdev->cur_cmd_info->snd_seq,
567ffc35 10547 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10548}
10549EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10550
10551int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10552{
10553 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10554 void *hdr = ((void **)skb->cb)[1];
10555 struct nlattr *data = ((void **)skb->cb)[2];
10556
bd8c78e7
JB		 10557 /* clear CB data for netlink core to own from now on */
10558 memset(skb->cb, 0, sizeof(skb->cb));
10559
ad7e718c
JB		 10560 if (WARN_ON(!rdev->cur_cmd_info)) {
10561 kfree_skb(skb);
10562 return -EINVAL;
10563 }
10564
10565 nla_nest_end(skb, data);
10566 genlmsg_end(skb, hdr);
10567 return genlmsg_reply(skb, rdev->cur_cmd_info);
10568}
10569EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10570
10571
fa9ffc74
KP		 10572static int nl80211_set_qos_map(struct sk_buff *skb,
10573 struct genl_info *info)
10574{
10575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10576 struct cfg80211_qos_map *qos_map = NULL;
10577 struct net_device *dev = info->user_ptr[1];
10578 u8 *pos, len, num_des, des_len, des;
10579 int ret;
10580
10581 if (!rdev->ops->set_qos_map)
10582 return -EOPNOTSUPP;
10583
10584 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10585 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10586 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10587
10588 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10589 len > IEEE80211_QOS_MAP_LEN_MAX)
10590 return -EINVAL;
10591
10592 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10593 if (!qos_map)
10594 return -ENOMEM;
10595
10596 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10597 if (num_des) {
10598 des_len = num_des *
10599 sizeof(struct cfg80211_dscp_exception);
10600 memcpy(qos_map->dscp_exception, pos, des_len);
10601 qos_map->num_des = num_des;
10602 for (des = 0; des < num_des; des++) {
10603 if (qos_map->dscp_exception[des].up > 7) {
10604 kfree(qos_map);
10605 return -EINVAL;
10606 }
10607 }
10608 pos += des_len;
10609 }
10610 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10611 }
10612
10613 wdev_lock(dev->ieee80211_ptr);
10614 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10615 if (!ret)
10616 ret = rdev_set_qos_map(rdev, dev, qos_map);
10617 wdev_unlock(dev->ieee80211_ptr);
10618
10619 kfree(qos_map);
10620 return ret;
10621}
10622
960d01ac
JB		 10623static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10624{
10625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10626 struct net_device *dev = info->user_ptr[1];
10627 struct wireless_dev *wdev = dev->ieee80211_ptr;
10628 const u8 *peer;
10629 u8 tsid, up;
10630 u16 admitted_time = 0;
10631 int err;
10632
723e73ac 10633 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10634 return -EOPNOTSUPP;
10635
10636 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10637 !info->attrs[NL80211_ATTR_USER_PRIO])
10638 return -EINVAL;
10639
10640 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10641 if (tsid >= IEEE80211_NUM_TIDS)
10642 return -EINVAL;
10643
10644 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10645 if (up >= IEEE80211_NUM_UPS)
10646 return -EINVAL;
10647
10648 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10649 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10650 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10651 * need more attributes for that (e.g. BA session requirement);
10652 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10653 */
10654 return -EINVAL;
10655 }
10656
10657 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10658
10659 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10660 admitted_time =
10661 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10662 if (!admitted_time)
10663 return -EINVAL;
10664 }
10665
10666 wdev_lock(wdev);
10667 switch (wdev->iftype) {
10668 case NL80211_IFTYPE_STATION:
10669 case NL80211_IFTYPE_P2P_CLIENT:
10670 if (wdev->current_bss)
10671 break;
10672 err = -ENOTCONN;
10673 goto out;
10674 default:
10675 err = -EOPNOTSUPP;
10676 goto out;
10677 }
10678
10679 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10680
10681 out:
10682 wdev_unlock(wdev);
10683 return err;
10684}
10685
10686static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10687{
10688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10689 struct net_device *dev = info->user_ptr[1];
10690 struct wireless_dev *wdev = dev->ieee80211_ptr;
10691 const u8 *peer;
10692 u8 tsid;
10693 int err;
10694
10695 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10696 return -EINVAL;
10697
10698 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10699 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10700
10701 wdev_lock(wdev);
10702 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10703 wdev_unlock(wdev);
10704
10705 return err;
10706}
10707
1057d35e
AN		 10708static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10709 struct genl_info *info)
10710{
10711 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10712 struct net_device *dev = info->user_ptr[1];
10713 struct wireless_dev *wdev = dev->ieee80211_ptr;
10714 struct cfg80211_chan_def chandef = {};
10715 const u8 *addr;
10716 u8 oper_class;
10717 int err;
10718
10719 if (!rdev->ops->tdls_channel_switch ||
10720 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10721 return -EOPNOTSUPP;
10722
10723 switch (dev->ieee80211_ptr->iftype) {
10724 case NL80211_IFTYPE_STATION:
10725 case NL80211_IFTYPE_P2P_CLIENT:
10726 break;
10727 default:
10728 return -EOPNOTSUPP;
10729 }
10730
10731 if (!info->attrs[NL80211_ATTR_MAC] ||
10732 !info->attrs[NL80211_ATTR_OPER_CLASS])
10733 return -EINVAL;
10734
10735 err = nl80211_parse_chandef(rdev, info, &chandef);
10736 if (err)
10737 return err;
10738
10739 /*
10740 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10741 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10742 * specification is not defined for them.
10743 */
10744 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10745 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10746 chandef.width != NL80211_CHAN_WIDTH_20)
10747 return -EINVAL;
10748
10749 /* we will be active on the TDLS link */
923b352f
AN		 10750 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10751 wdev->iftype))
1057d35e
AN		 10752 return -EINVAL;
10753
10754 /* don't allow switching to DFS channels */
10755 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10756 return -EINVAL;
10757
10758 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10759 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10760
10761 wdev_lock(wdev);
10762 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10763 wdev_unlock(wdev);
10764
10765 return err;
10766}
10767
10768static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10769 struct genl_info *info)
10770{
10771 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10772 struct net_device *dev = info->user_ptr[1];
10773 struct wireless_dev *wdev = dev->ieee80211_ptr;
10774 const u8 *addr;
10775
10776 if (!rdev->ops->tdls_channel_switch ||
10777 !rdev->ops->tdls_cancel_channel_switch ||
10778 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10779 return -EOPNOTSUPP;
10780
10781 switch (dev->ieee80211_ptr->iftype) {
10782 case NL80211_IFTYPE_STATION:
10783 case NL80211_IFTYPE_P2P_CLIENT:
10784 break;
10785 default:
10786 return -EOPNOTSUPP;
10787 }
10788
10789 if (!info->attrs[NL80211_ATTR_MAC])
10790 return -EINVAL;
10791
10792 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10793
10794 wdev_lock(wdev);
10795 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10796 wdev_unlock(wdev);
10797
10798 return 0;
10799}
10800
4c476991
JB		 10801#define NL80211_FLAG_NEED_WIPHY 0x01
10802#define NL80211_FLAG_NEED_NETDEV 0x02
10803#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10804#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10805#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10806 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10807#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10808/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10809#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10810 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10811#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10812
f84f771d 10813static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10814 struct genl_info *info)
10815{
10816 struct cfg80211_registered_device *rdev;
89a54e48 10817 struct wireless_dev *wdev;
4c476991 10818 struct net_device *dev;
4c476991
JB		 10819 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10820
10821 if (rtnl)
10822 rtnl_lock();
10823
10824 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10825 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10826 if (IS_ERR(rdev)) {
10827 if (rtnl)
10828 rtnl_unlock();
10829 return PTR_ERR(rdev);
10830 }
10831 info->user_ptr[0] = rdev;
1bf614ef
JB		 10832 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10833 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10834 ASSERT_RTNL();
10835
89a54e48
JB		 10836 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10837 info->attrs);
10838 if (IS_ERR(wdev)) {
4c476991
JB		 10839 if (rtnl)
10840 rtnl_unlock();
89a54e48 10841 return PTR_ERR(wdev);
4c476991 10842 }
89a54e48 10843
89a54e48 10844 dev = wdev->netdev;
f26cbf40 10845 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10846
1bf614ef
JB		 10847 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10848 if (!dev) {
1bf614ef
JB		 10849 if (rtnl)
10850 rtnl_unlock();
10851 return -EINVAL;
10852 }
10853
10854 info->user_ptr[1] = dev;
10855 } else {
10856 info->user_ptr[1] = wdev;
41265714 10857 }
1bf614ef
JB		 10858
10859 if (dev) {
10860 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10861 !netif_running(dev)) {
1bf614ef
JB		 10862 if (rtnl)
10863 rtnl_unlock();
10864 return -ENETDOWN;
10865 }
10866
10867 dev_hold(dev);
98104fde
JB		 10868 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10869 if (!wdev->p2p_started) {
98104fde
JB		 10870 if (rtnl)
10871 rtnl_unlock();
10872 return -ENETDOWN;
10873 }
41265714 10874 }
89a54e48 10875
4c476991 10876 info->user_ptr[0] = rdev;
4c476991
JB		 10877 }
10878
10879 return 0;
10880}
10881
f84f771d 10882static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10883 struct genl_info *info)
10884{
1bf614ef
JB		 10885 if (info->user_ptr[1]) {
10886 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10887 struct wireless_dev *wdev = info->user_ptr[1];
10888
10889 if (wdev->netdev)
10890 dev_put(wdev->netdev);
10891 } else {
10892 dev_put(info->user_ptr[1]);
10893 }
10894 }
5393b917 10895
4c476991
JB		 10896 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10897 rtnl_unlock();
5393b917
JB		 10898
10899 /* If needed, clear the netlink message payload from the SKB
10900 * as it might contain key data that shouldn't stick around on
10901 * the heap after the SKB is freed. The netlink message header
10902 * is still needed for further processing, so leave it intact.
10903 */
10904 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10905 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10906
10907 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10908 }
4c476991
JB		 10909}
10910
4534de83 10911static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10912 {
10913 .cmd = NL80211_CMD_GET_WIPHY,
10914 .doit = nl80211_get_wiphy,
10915 .dumpit = nl80211_dump_wiphy,
86e8cf98 10916 .done = nl80211_dump_wiphy_done,
55682965
JB		 10917 .policy = nl80211_policy,
10918 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10919 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10920 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10921 },
10922 {
10923 .cmd = NL80211_CMD_SET_WIPHY,
10924 .doit = nl80211_set_wiphy,
10925 .policy = nl80211_policy,
10926 .flags = GENL_ADMIN_PERM,
4c476991 10927 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10928 },
10929 {
10930 .cmd = NL80211_CMD_GET_INTERFACE,
10931 .doit = nl80211_get_interface,
10932 .dumpit = nl80211_dump_interface,
10933 .policy = nl80211_policy,
10934 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10935 .internal_flags = NL80211_FLAG_NEED_WDEV |
10936 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10937 },
10938 {
10939 .cmd = NL80211_CMD_SET_INTERFACE,
10940 .doit = nl80211_set_interface,
10941 .policy = nl80211_policy,
10942 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10943 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10944 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10945 },
10946 {
10947 .cmd = NL80211_CMD_NEW_INTERFACE,
10948 .doit = nl80211_new_interface,
10949 .policy = nl80211_policy,
10950 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10951 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10952 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10953 },
10954 {
10955 .cmd = NL80211_CMD_DEL_INTERFACE,
10956 .doit = nl80211_del_interface,
10957 .policy = nl80211_policy,
41ade00f 10958 .flags = GENL_ADMIN_PERM,
84efbb84 10959 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10960 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10961 },
10962 {
10963 .cmd = NL80211_CMD_GET_KEY,
10964 .doit = nl80211_get_key,
10965 .policy = nl80211_policy,
10966 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10967 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10968 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10969 },
10970 {
10971 .cmd = NL80211_CMD_SET_KEY,
10972 .doit = nl80211_set_key,
10973 .policy = nl80211_policy,
10974 .flags = GENL_ADMIN_PERM,
41265714 10975 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10976 NL80211_FLAG_NEED_RTNL |
10977 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10978 },
10979 {
10980 .cmd = NL80211_CMD_NEW_KEY,
10981 .doit = nl80211_new_key,
10982 .policy = nl80211_policy,
10983 .flags = GENL_ADMIN_PERM,
41265714 10984 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10985 NL80211_FLAG_NEED_RTNL |
10986 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10987 },
10988 {
10989 .cmd = NL80211_CMD_DEL_KEY,
10990 .doit = nl80211_del_key,
10991 .policy = nl80211_policy,
55682965 10992 .flags = GENL_ADMIN_PERM,
41265714 10993 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10994 NL80211_FLAG_NEED_RTNL,
55682965 10995 },
ed1b6cc7
JB		 10996 {
10997 .cmd = NL80211_CMD_SET_BEACON,
10998 .policy = nl80211_policy,
10999 .flags = GENL_ADMIN_PERM,
8860020e 11000 .doit = nl80211_set_beacon,
2b5f8b0b 11001 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11002 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11003 },
11004 {
8860020e 11005 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 11006 .policy = nl80211_policy,
11007 .flags = GENL_ADMIN_PERM,
8860020e 11008 .doit = nl80211_start_ap,
2b5f8b0b 11009 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11010 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 11011 },
11012 {
8860020e 11013 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 11014 .policy = nl80211_policy,
11015 .flags = GENL_ADMIN_PERM,
8860020e 11016 .doit = nl80211_stop_ap,
2b5f8b0b 11017 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11018 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 11019 },
5727ef1b
JB		 11020 {
11021 .cmd = NL80211_CMD_GET_STATION,
11022 .doit = nl80211_get_station,
2ec600d6 11023 .dumpit = nl80211_dump_station,
5727ef1b 11024 .policy = nl80211_policy,
4c476991
JB		 11025 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11026 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11027 },
11028 {
11029 .cmd = NL80211_CMD_SET_STATION,
11030 .doit = nl80211_set_station,
11031 .policy = nl80211_policy,
11032 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11033 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11034 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11035 },
11036 {
11037 .cmd = NL80211_CMD_NEW_STATION,
11038 .doit = nl80211_new_station,
11039 .policy = nl80211_policy,
11040 .flags = GENL_ADMIN_PERM,
41265714 11041 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11042 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 11043 },
11044 {
11045 .cmd = NL80211_CMD_DEL_STATION,
11046 .doit = nl80211_del_station,
11047 .policy = nl80211_policy,
2ec600d6 11048 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11049 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11050 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11051 },
11052 {
11053 .cmd = NL80211_CMD_GET_MPATH,
11054 .doit = nl80211_get_mpath,
11055 .dumpit = nl80211_dump_mpath,
11056 .policy = nl80211_policy,
11057 .flags = GENL_ADMIN_PERM,
41265714 11058 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11059 NL80211_FLAG_NEED_RTNL,
2ec600d6 11060 },
66be7d2b
HR		 11061 {
11062 .cmd = NL80211_CMD_GET_MPP,
11063 .doit = nl80211_get_mpp,
11064 .dumpit = nl80211_dump_mpp,
11065 .policy = nl80211_policy,
11066 .flags = GENL_ADMIN_PERM,
11067 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11068 NL80211_FLAG_NEED_RTNL,
11069 },
2ec600d6
LCC		 11070 {
11071 .cmd = NL80211_CMD_SET_MPATH,
11072 .doit = nl80211_set_mpath,
11073 .policy = nl80211_policy,
11074 .flags = GENL_ADMIN_PERM,
41265714 11075 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11076 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11077 },
11078 {
11079 .cmd = NL80211_CMD_NEW_MPATH,
11080 .doit = nl80211_new_mpath,
11081 .policy = nl80211_policy,
11082 .flags = GENL_ADMIN_PERM,
41265714 11083 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11084 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 11085 },
11086 {
11087 .cmd = NL80211_CMD_DEL_MPATH,
11088 .doit = nl80211_del_mpath,
11089 .policy = nl80211_policy,
9f1ba906 11090 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11091 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11092 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 11093 },
11094 {
11095 .cmd = NL80211_CMD_SET_BSS,
11096 .doit = nl80211_set_bss,
11097 .policy = nl80211_policy,
b2e1b302 11098 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11099 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11100 NL80211_FLAG_NEED_RTNL,
b2e1b302 11101 },
f130347c
LR		 11102 {
11103 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 11104 .doit = nl80211_get_reg_do,
11105 .dumpit = nl80211_get_reg_dump,
f130347c 11106 .policy = nl80211_policy,
5fe231e8 11107 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 11108 /* can be retrieved by unprivileged users */
11109 },
b6863036 11110#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 11111 {
11112 .cmd = NL80211_CMD_SET_REG,
11113 .doit = nl80211_set_reg,
11114 .policy = nl80211_policy,
11115 .flags = GENL_ADMIN_PERM,
5fe231e8 11116 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 11117 },
b6863036 11118#endif
b2e1b302
LR		 11119 {
11120 .cmd = NL80211_CMD_REQ_SET_REG,
11121 .doit = nl80211_req_set_reg,
11122 .policy = nl80211_policy,
93da9cc1 11123 .flags = GENL_ADMIN_PERM,
11124 },
11125 {
24bdd9f4
JC		 11126 .cmd = NL80211_CMD_GET_MESH_CONFIG,
11127 .doit = nl80211_get_mesh_config,
93da9cc1 11128 .policy = nl80211_policy,
11129 /* can be retrieved by unprivileged users */
2b5f8b0b 11130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11131 NL80211_FLAG_NEED_RTNL,
93da9cc1 11132 },
11133 {
24bdd9f4
JC		 11134 .cmd = NL80211_CMD_SET_MESH_CONFIG,
11135 .doit = nl80211_update_mesh_config,
93da9cc1 11136 .policy = nl80211_policy,
9aed3cc1 11137 .flags = GENL_ADMIN_PERM,
29cbe68c 11138 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11139 NL80211_FLAG_NEED_RTNL,
9aed3cc1 11140 },
2a519311
JB		 11141 {
11142 .cmd = NL80211_CMD_TRIGGER_SCAN,
11143 .doit = nl80211_trigger_scan,
11144 .policy = nl80211_policy,
11145 .flags = GENL_ADMIN_PERM,
fd014284 11146 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11147 NL80211_FLAG_NEED_RTNL,
2a519311 11148 },
91d3ab46
VK		 11149 {
11150 .cmd = NL80211_CMD_ABORT_SCAN,
11151 .doit = nl80211_abort_scan,
11152 .policy = nl80211_policy,
11153 .flags = GENL_ADMIN_PERM,
11154 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11155 NL80211_FLAG_NEED_RTNL,
11156 },
2a519311
JB		 11157 {
11158 .cmd = NL80211_CMD_GET_SCAN,
11159 .policy = nl80211_policy,
11160 .dumpit = nl80211_dump_scan,
11161 },
807f8a8c
LC		 11162 {
11163 .cmd = NL80211_CMD_START_SCHED_SCAN,
11164 .doit = nl80211_start_sched_scan,
11165 .policy = nl80211_policy,
11166 .flags = GENL_ADMIN_PERM,
11167 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11168 NL80211_FLAG_NEED_RTNL,
11169 },
11170 {
11171 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11172 .doit = nl80211_stop_sched_scan,
11173 .policy = nl80211_policy,
11174 .flags = GENL_ADMIN_PERM,
11175 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11176 NL80211_FLAG_NEED_RTNL,
11177 },
636a5d36
JM		 11178 {
11179 .cmd = NL80211_CMD_AUTHENTICATE,
11180 .doit = nl80211_authenticate,
11181 .policy = nl80211_policy,
11182 .flags = GENL_ADMIN_PERM,
41265714 11183 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11184 NL80211_FLAG_NEED_RTNL |
11185 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 11186 },
11187 {
11188 .cmd = NL80211_CMD_ASSOCIATE,
11189 .doit = nl80211_associate,
11190 .policy = nl80211_policy,
11191 .flags = GENL_ADMIN_PERM,
41265714 11192 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11193 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11194 },
11195 {
11196 .cmd = NL80211_CMD_DEAUTHENTICATE,
11197 .doit = nl80211_deauthenticate,
11198 .policy = nl80211_policy,
11199 .flags = GENL_ADMIN_PERM,
41265714 11200 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11201 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11202 },
11203 {
11204 .cmd = NL80211_CMD_DISASSOCIATE,
11205 .doit = nl80211_disassociate,
11206 .policy = nl80211_policy,
11207 .flags = GENL_ADMIN_PERM,
41265714 11208 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11209 NL80211_FLAG_NEED_RTNL,
636a5d36 11210 },
04a773ad
JB		 11211 {
11212 .cmd = NL80211_CMD_JOIN_IBSS,
11213 .doit = nl80211_join_ibss,
11214 .policy = nl80211_policy,
11215 .flags = GENL_ADMIN_PERM,
41265714 11216 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11217 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11218 },
11219 {
11220 .cmd = NL80211_CMD_LEAVE_IBSS,
11221 .doit = nl80211_leave_ibss,
11222 .policy = nl80211_policy,
11223 .flags = GENL_ADMIN_PERM,
41265714 11224 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11225 NL80211_FLAG_NEED_RTNL,
04a773ad 11226 },
aff89a9b
JB		 11227#ifdef CONFIG_NL80211_TESTMODE
11228 {
11229 .cmd = NL80211_CMD_TESTMODE,
11230 .doit = nl80211_testmode_do,
71063f0e 11231 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 11232 .policy = nl80211_policy,
11233 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11234 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11235 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11236 },
11237#endif
b23aa676
SO		 11238 {
11239 .cmd = NL80211_CMD_CONNECT,
11240 .doit = nl80211_connect,
11241 .policy = nl80211_policy,
11242 .flags = GENL_ADMIN_PERM,
41265714 11243 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11244 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11245 },
11246 {
11247 .cmd = NL80211_CMD_DISCONNECT,
11248 .doit = nl80211_disconnect,
11249 .policy = nl80211_policy,
11250 .flags = GENL_ADMIN_PERM,
41265714 11251 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11252 NL80211_FLAG_NEED_RTNL,
b23aa676 11253 },
463d0183
JB		 11254 {
11255 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11256 .doit = nl80211_wiphy_netns,
11257 .policy = nl80211_policy,
11258 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11259 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11260 NL80211_FLAG_NEED_RTNL,
463d0183 11261 },
61fa713c
HS		 11262 {
11263 .cmd = NL80211_CMD_GET_SURVEY,
11264 .policy = nl80211_policy,
11265 .dumpit = nl80211_dump_survey,
11266 },
67fbb16b
SO		 11267 {
11268 .cmd = NL80211_CMD_SET_PMKSA,
11269 .doit = nl80211_setdel_pmksa,
11270 .policy = nl80211_policy,
11271 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11272 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11273 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11274 },
11275 {
11276 .cmd = NL80211_CMD_DEL_PMKSA,
11277 .doit = nl80211_setdel_pmksa,
11278 .policy = nl80211_policy,
11279 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11280 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11281 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11282 },
11283 {
11284 .cmd = NL80211_CMD_FLUSH_PMKSA,
11285 .doit = nl80211_flush_pmksa,
11286 .policy = nl80211_policy,
11287 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11288 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11289 NL80211_FLAG_NEED_RTNL,
67fbb16b 11290 },
9588bbd5
JM		 11291 {
11292 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11293 .doit = nl80211_remain_on_channel,
11294 .policy = nl80211_policy,
11295 .flags = GENL_ADMIN_PERM,
71bbc994 11296 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11297 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11298 },
11299 {
11300 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11301 .doit = nl80211_cancel_remain_on_channel,
11302 .policy = nl80211_policy,
11303 .flags = GENL_ADMIN_PERM,
71bbc994 11304 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11305 NL80211_FLAG_NEED_RTNL,
9588bbd5 11306 },
13ae75b1
JM		 11307 {
11308 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11309 .doit = nl80211_set_tx_bitrate_mask,
11310 .policy = nl80211_policy,
11311 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11312 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11313 NL80211_FLAG_NEED_RTNL,
13ae75b1 11314 },
026331c4 11315 {
2e161f78
JB		 11316 .cmd = NL80211_CMD_REGISTER_FRAME,
11317 .doit = nl80211_register_mgmt,
026331c4
JM		 11318 .policy = nl80211_policy,
11319 .flags = GENL_ADMIN_PERM,
71bbc994 11320 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11321 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11322 },
11323 {
2e161f78
JB		 11324 .cmd = NL80211_CMD_FRAME,
11325 .doit = nl80211_tx_mgmt,
026331c4 11326 .policy = nl80211_policy,
f7ca38df 11327 .flags = GENL_ADMIN_PERM,
71bbc994 11328 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11329 NL80211_FLAG_NEED_RTNL,
11330 },
11331 {
11332 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11333 .doit = nl80211_tx_mgmt_cancel_wait,
11334 .policy = nl80211_policy,
026331c4 11335 .flags = GENL_ADMIN_PERM,
71bbc994 11336 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11337 NL80211_FLAG_NEED_RTNL,
026331c4 11338 },
ffb9eb3d
KV		 11339 {
11340 .cmd = NL80211_CMD_SET_POWER_SAVE,
11341 .doit = nl80211_set_power_save,
11342 .policy = nl80211_policy,
11343 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11344 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11345 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11346 },
11347 {
11348 .cmd = NL80211_CMD_GET_POWER_SAVE,
11349 .doit = nl80211_get_power_save,
11350 .policy = nl80211_policy,
11351 /* can be retrieved by unprivileged users */
4c476991
JB		 11352 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11353 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11354 },
d6dc1a38
JO		 11355 {
11356 .cmd = NL80211_CMD_SET_CQM,
11357 .doit = nl80211_set_cqm,
11358 .policy = nl80211_policy,
11359 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11360 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11361 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11362 },
f444de05
JB		 11363 {
11364 .cmd = NL80211_CMD_SET_CHANNEL,
11365 .doit = nl80211_set_channel,
11366 .policy = nl80211_policy,
11367 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11368 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11369 NL80211_FLAG_NEED_RTNL,
f444de05 11370 },
e8347eba
BJ		 11371 {
11372 .cmd = NL80211_CMD_SET_WDS_PEER,
11373 .doit = nl80211_set_wds_peer,
11374 .policy = nl80211_policy,
11375 .flags = GENL_ADMIN_PERM,
43b19952
JB		 11376 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11377 NL80211_FLAG_NEED_RTNL,
e8347eba 11378 },
29cbe68c
JB		 11379 {
11380 .cmd = NL80211_CMD_JOIN_MESH,
11381 .doit = nl80211_join_mesh,
11382 .policy = nl80211_policy,
11383 .flags = GENL_ADMIN_PERM,
11384 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11385 NL80211_FLAG_NEED_RTNL,
11386 },
11387 {
11388 .cmd = NL80211_CMD_LEAVE_MESH,
11389 .doit = nl80211_leave_mesh,
11390 .policy = nl80211_policy,
11391 .flags = GENL_ADMIN_PERM,
11392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11393 NL80211_FLAG_NEED_RTNL,
11394 },
6e0bd6c3
RL		 11395 {
11396 .cmd = NL80211_CMD_JOIN_OCB,
11397 .doit = nl80211_join_ocb,
11398 .policy = nl80211_policy,
11399 .flags = GENL_ADMIN_PERM,
11400 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11401 NL80211_FLAG_NEED_RTNL,
11402 },
11403 {
11404 .cmd = NL80211_CMD_LEAVE_OCB,
11405 .doit = nl80211_leave_ocb,
11406 .policy = nl80211_policy,
11407 .flags = GENL_ADMIN_PERM,
11408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11409 NL80211_FLAG_NEED_RTNL,
11410 },
dfb89c56 11411#ifdef CONFIG_PM
ff1b6e69
JB		 11412 {
11413 .cmd = NL80211_CMD_GET_WOWLAN,
11414 .doit = nl80211_get_wowlan,
11415 .policy = nl80211_policy,
11416 /* can be retrieved by unprivileged users */
11417 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11418 NL80211_FLAG_NEED_RTNL,
11419 },
11420 {
11421 .cmd = NL80211_CMD_SET_WOWLAN,
11422 .doit = nl80211_set_wowlan,
11423 .policy = nl80211_policy,
11424 .flags = GENL_ADMIN_PERM,
11425 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11426 NL80211_FLAG_NEED_RTNL,
11427 },
dfb89c56 11428#endif
e5497d76
JB		 11429 {
11430 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11431 .doit = nl80211_set_rekey_data,
11432 .policy = nl80211_policy,
11433 .flags = GENL_ADMIN_PERM,
11434 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11435 NL80211_FLAG_NEED_RTNL |
11436 NL80211_FLAG_CLEAR_SKB,
e5497d76 11437 },
109086ce
AN		 11438 {
11439 .cmd = NL80211_CMD_TDLS_MGMT,
11440 .doit = nl80211_tdls_mgmt,
11441 .policy = nl80211_policy,
11442 .flags = GENL_ADMIN_PERM,
11443 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11444 NL80211_FLAG_NEED_RTNL,
11445 },
11446 {
11447 .cmd = NL80211_CMD_TDLS_OPER,
11448 .doit = nl80211_tdls_oper,
11449 .policy = nl80211_policy,
11450 .flags = GENL_ADMIN_PERM,
11451 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11452 NL80211_FLAG_NEED_RTNL,
11453 },
28946da7
JB		 11454 {
11455 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11456 .doit = nl80211_register_unexpected_frame,
11457 .policy = nl80211_policy,
11458 .flags = GENL_ADMIN_PERM,
11459 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11460 NL80211_FLAG_NEED_RTNL,
11461 },
7f6cf311
JB		 11462 {
11463 .cmd = NL80211_CMD_PROBE_CLIENT,
11464 .doit = nl80211_probe_client,
11465 .policy = nl80211_policy,
11466 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11467 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11468 NL80211_FLAG_NEED_RTNL,
11469 },
5e760230
JB		 11470 {
11471 .cmd = NL80211_CMD_REGISTER_BEACONS,
11472 .doit = nl80211_register_beacons,
11473 .policy = nl80211_policy,
11474 .flags = GENL_ADMIN_PERM,
11475 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11476 NL80211_FLAG_NEED_RTNL,
11477 },
1d9d9213
SW		 11478 {
11479 .cmd = NL80211_CMD_SET_NOACK_MAP,
11480 .doit = nl80211_set_noack_map,
11481 .policy = nl80211_policy,
11482 .flags = GENL_ADMIN_PERM,
11483 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11484 NL80211_FLAG_NEED_RTNL,
11485 },
98104fde
JB		 11486 {
11487 .cmd = NL80211_CMD_START_P2P_DEVICE,
11488 .doit = nl80211_start_p2p_device,
11489 .policy = nl80211_policy,
11490 .flags = GENL_ADMIN_PERM,
11491 .internal_flags = NL80211_FLAG_NEED_WDEV |
11492 NL80211_FLAG_NEED_RTNL,
11493 },
11494 {
11495 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11496 .doit = nl80211_stop_p2p_device,
11497 .policy = nl80211_policy,
11498 .flags = GENL_ADMIN_PERM,
11499 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11500 NL80211_FLAG_NEED_RTNL,
11501 },
f4e583c8
AQ		 11502 {
11503 .cmd = NL80211_CMD_SET_MCAST_RATE,
11504 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 11505 .policy = nl80211_policy,
11506 .flags = GENL_ADMIN_PERM,
11507 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11508 NL80211_FLAG_NEED_RTNL,
11509 },
11510 {
11511 .cmd = NL80211_CMD_SET_MAC_ACL,
11512 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 11513 .policy = nl80211_policy,
11514 .flags = GENL_ADMIN_PERM,
11515 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11516 NL80211_FLAG_NEED_RTNL,
11517 },
04f39047
SW		 11518 {
11519 .cmd = NL80211_CMD_RADAR_DETECT,
11520 .doit = nl80211_start_radar_detection,
11521 .policy = nl80211_policy,
11522 .flags = GENL_ADMIN_PERM,
11523 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11524 NL80211_FLAG_NEED_RTNL,
11525 },
3713b4e3
JB		 11526 {
11527 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11528 .doit = nl80211_get_protocol_features,
11529 .policy = nl80211_policy,
11530 },
355199e0
JM		 11531 {
11532 .cmd = NL80211_CMD_UPDATE_FT_IES,
11533 .doit = nl80211_update_ft_ies,
11534 .policy = nl80211_policy,
11535 .flags = GENL_ADMIN_PERM,
11536 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11537 NL80211_FLAG_NEED_RTNL,
11538 },
5de17984
AS		 11539 {
11540 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11541 .doit = nl80211_crit_protocol_start,
11542 .policy = nl80211_policy,
11543 .flags = GENL_ADMIN_PERM,
11544 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11545 NL80211_FLAG_NEED_RTNL,
11546 },
11547 {
11548 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11549 .doit = nl80211_crit_protocol_stop,
11550 .policy = nl80211_policy,
11551 .flags = GENL_ADMIN_PERM,
11552 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11553 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11554 },
11555 {
11556 .cmd = NL80211_CMD_GET_COALESCE,
11557 .doit = nl80211_get_coalesce,
11558 .policy = nl80211_policy,
11559 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11560 NL80211_FLAG_NEED_RTNL,
11561 },
11562 {
11563 .cmd = NL80211_CMD_SET_COALESCE,
11564 .doit = nl80211_set_coalesce,
11565 .policy = nl80211_policy,
11566 .flags = GENL_ADMIN_PERM,
11567 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11568 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11569 },
11570 {
11571 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11572 .doit = nl80211_channel_switch,
11573 .policy = nl80211_policy,
11574 .flags = GENL_ADMIN_PERM,
11575 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11576 NL80211_FLAG_NEED_RTNL,
11577 },
ad7e718c
JB		 11578 {
11579 .cmd = NL80211_CMD_VENDOR,
11580 .doit = nl80211_vendor_cmd,
7bdbe400 11581 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c
JB		 11582 .policy = nl80211_policy,
11583 .flags = GENL_ADMIN_PERM,
11584 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11585 NL80211_FLAG_NEED_RTNL,
11586 },
fa9ffc74
KP		 11587 {
11588 .cmd = NL80211_CMD_SET_QOS_MAP,
11589 .doit = nl80211_set_qos_map,
11590 .policy = nl80211_policy,
11591 .flags = GENL_ADMIN_PERM,
11592 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11593 NL80211_FLAG_NEED_RTNL,
11594 },
960d01ac
JB		 11595 {
11596 .cmd = NL80211_CMD_ADD_TX_TS,
11597 .doit = nl80211_add_tx_ts,
11598 .policy = nl80211_policy,
11599 .flags = GENL_ADMIN_PERM,
11600 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11601 NL80211_FLAG_NEED_RTNL,
11602 },
11603 {
11604 .cmd = NL80211_CMD_DEL_TX_TS,
11605 .doit = nl80211_del_tx_ts,
11606 .policy = nl80211_policy,
11607 .flags = GENL_ADMIN_PERM,
11608 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11609 NL80211_FLAG_NEED_RTNL,
11610 },
1057d35e
AN		 11611 {
11612 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11613 .doit = nl80211_tdls_channel_switch,
11614 .policy = nl80211_policy,
11615 .flags = GENL_ADMIN_PERM,
11616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11617 NL80211_FLAG_NEED_RTNL,
11618 },
11619 {
11620 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11621 .doit = nl80211_tdls_cancel_channel_switch,
11622 .policy = nl80211_policy,
11623 .flags = GENL_ADMIN_PERM,
11624 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11625 NL80211_FLAG_NEED_RTNL,
11626 },
55682965 11627};
9588bbd5 11628
55682965
JB		 11629/* notification functions */
11630
3bb20556
JB		 11631void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11632 enum nl80211_commands cmd)
55682965
JB		 11633{
11634 struct sk_buff *msg;
86e8cf98 11635 struct nl80211_dump_wiphy_state state = {};
55682965 11636
3bb20556
JB		 11637 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11638 cmd != NL80211_CMD_DEL_WIPHY);
11639
fd2120ca 11640 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11641 if (!msg)
11642 return;
11643
3bb20556 11644 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11645 nlmsg_free(msg);
11646 return;
11647 }
11648
68eb5503 11649 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11650 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11651}
11652
362a415d
JB		 11653static int nl80211_add_scan_req(struct sk_buff *msg,
11654 struct cfg80211_registered_device *rdev)
11655{
11656 struct cfg80211_scan_request *req = rdev->scan_req;
11657 struct nlattr *nest;
11658 int i;
11659
11660 if (WARN_ON(!req))
11661 return 0;
11662
11663 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11664 if (!nest)
11665 goto nla_put_failure;
9360ffd1
DM		 11666 for (i = 0; i < req->n_ssids; i++) {
11667 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11668 goto nla_put_failure;
11669 }
362a415d
JB		 11670 nla_nest_end(msg, nest);
11671
11672 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11673 if (!nest)
11674 goto nla_put_failure;
9360ffd1
DM		 11675 for (i = 0; i < req->n_channels; i++) {
11676 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11677 goto nla_put_failure;
11678 }
362a415d
JB		 11679 nla_nest_end(msg, nest);
11680
9360ffd1
DM		 11681 if (req->ie &&
11682 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11683 goto nla_put_failure;
362a415d 11684
ae917c9f
JB		 11685 if (req->flags &&
11686 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11687 goto nla_put_failure;
ed473771 11688
362a415d
JB		 11689 return 0;
11690 nla_put_failure:
11691 return -ENOBUFS;
11692}
11693
a538e2d5
JB		 11694static int nl80211_send_scan_msg(struct sk_buff *msg,
11695 struct cfg80211_registered_device *rdev,
fd014284 11696 struct wireless_dev *wdev,
15e47304 11697 u32 portid, u32 seq, int flags,
a538e2d5 11698 u32 cmd)
2a519311
JB		 11699{
11700 void *hdr;
11701
15e47304 11702 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11703 if (!hdr)
11704 return -1;
11705
9360ffd1 11706 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11707 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11708 wdev->netdev->ifindex)) ||
11709 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11710 goto nla_put_failure;
2a519311 11711
362a415d
JB		 11712 /* ignore errors and send incomplete event anyway */
11713 nl80211_add_scan_req(msg, rdev);
2a519311 11714
053c095a
JB		 11715 genlmsg_end(msg, hdr);
11716 return 0;
2a519311
JB		 11717
11718 nla_put_failure:
11719 genlmsg_cancel(msg, hdr);
11720 return -EMSGSIZE;
11721}
11722
807f8a8c
LC		 11723static int
11724nl80211_send_sched_scan_msg(struct sk_buff *msg,
11725 struct cfg80211_registered_device *rdev,
11726 struct net_device *netdev,
15e47304 11727 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11728{
11729 void *hdr;
11730
15e47304 11731 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11732 if (!hdr)
11733 return -1;
11734
9360ffd1
DM		 11735 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11736 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11737 goto nla_put_failure;
807f8a8c 11738
053c095a
JB		 11739 genlmsg_end(msg, hdr);
11740 return 0;
807f8a8c
LC		 11741
11742 nla_put_failure:
11743 genlmsg_cancel(msg, hdr);
11744 return -EMSGSIZE;
11745}
11746
a538e2d5 11747void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11748 struct wireless_dev *wdev)
a538e2d5
JB		 11749{
11750 struct sk_buff *msg;
11751
58050fce 11752 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11753 if (!msg)
11754 return;
11755
fd014284 11756 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11757 NL80211_CMD_TRIGGER_SCAN) < 0) {
11758 nlmsg_free(msg);
11759 return;
11760 }
11761
68eb5503 11762 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11763 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11764}
11765
f9d15d16
JB		 11766struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11767 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11768{
11769 struct sk_buff *msg;
11770
fd2120ca 11771 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11772 if (!msg)
f9d15d16 11773 return NULL;
2a519311 11774
fd014284 11775 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11776 aborted ? NL80211_CMD_SCAN_ABORTED :
11777 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11778 nlmsg_free(msg);
f9d15d16 11779 return NULL;
2a519311
JB		 11780 }
11781
f9d15d16 11782 return msg;
2a519311
JB		 11783}
11784
f9d15d16
JB		 11785void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11786 struct sk_buff *msg)
2a519311 11787{
2a519311
JB		 11788 if (!msg)
11789 return;
11790
68eb5503 11791 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11792 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11793}
11794
807f8a8c
LC		 11795void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11796 struct net_device *netdev)
11797{
11798 struct sk_buff *msg;
11799
11800 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11801 if (!msg)
11802 return;
11803
11804 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11805 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11806 nlmsg_free(msg);
11807 return;
11808 }
11809
68eb5503 11810 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11811 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11812}
11813
11814void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11815 struct net_device *netdev, u32 cmd)
11816{
11817 struct sk_buff *msg;
11818
58050fce 11819 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11820 if (!msg)
11821 return;
11822
11823 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11824 nlmsg_free(msg);
11825 return;
11826 }
11827
68eb5503 11828 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11829 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11830}
11831
b0d7aa59
JD		 11832static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11833 struct regulatory_request *request)
73d54c9e 11834{
73d54c9e 11835 /* Userspace can always count this one always being set */
9360ffd1
DM		 11836 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11837 goto nla_put_failure;
11838
11839 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11840 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11841 NL80211_REGDOM_TYPE_WORLD))
11842 goto nla_put_failure;
11843 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11844 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11845 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11846 goto nla_put_failure;
11847 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11848 request->intersect) {
11849 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11850 NL80211_REGDOM_TYPE_INTERSECTION))
11851 goto nla_put_failure;
11852 } else {
11853 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11854 NL80211_REGDOM_TYPE_COUNTRY) ||
11855 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11856 request->alpha2))
11857 goto nla_put_failure;
11858 }
11859
ad30ca2c
AN		 11860 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11861 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11862
11863 if (wiphy &&
11864 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11865 goto nla_put_failure;
1bdd716c
AN		 11866
11867 if (wiphy &&
11868 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11869 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11870 goto nla_put_failure;
ad30ca2c 11871 }
73d54c9e 11872
b0d7aa59
JD		 11873 return true;
11874
11875nla_put_failure:
11876 return false;
11877}
11878
11879/*
11880 * This can happen on global regulatory changes or device specific settings
11881 * based on custom regulatory domains.
11882 */
11883void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11884 struct regulatory_request *request)
11885{
11886 struct sk_buff *msg;
11887 void *hdr;
11888
11889 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11890 if (!msg)
11891 return;
11892
11893 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11894 if (!hdr) {
11895 nlmsg_free(msg);
11896 return;
11897 }
11898
11899 if (nl80211_reg_change_event_fill(msg, request) == false)
11900 goto nla_put_failure;
11901
3b7b72ee 11902 genlmsg_end(msg, hdr);
73d54c9e 11903
bc43b28c 11904 rcu_read_lock();
68eb5503 11905 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11906 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11907 rcu_read_unlock();
73d54c9e
LR		 11908
11909 return;
11910
11911nla_put_failure:
11912 genlmsg_cancel(msg, hdr);
11913 nlmsg_free(msg);
11914}
11915
6039f6d2
JM		 11916static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11917 struct net_device *netdev,
11918 const u8 *buf, size_t len,
b0b6aa2c
EP		 11919 enum nl80211_commands cmd, gfp_t gfp,
11920 int uapsd_queues)
6039f6d2
JM		 11921{
11922 struct sk_buff *msg;
11923 void *hdr;
11924
e6d6e342 11925 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11926 if (!msg)
11927 return;
11928
11929 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11930 if (!hdr) {
11931 nlmsg_free(msg);
11932 return;
11933 }
11934
9360ffd1
DM		 11935 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11936 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11937 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11938 goto nla_put_failure;
6039f6d2 11939
b0b6aa2c
EP		 11940 if (uapsd_queues >= 0) {
11941 struct nlattr *nla_wmm =
11942 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11943 if (!nla_wmm)
11944 goto nla_put_failure;
11945
11946 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11947 uapsd_queues))
11948 goto nla_put_failure;
11949
11950 nla_nest_end(msg, nla_wmm);
11951 }
11952
3b7b72ee 11953 genlmsg_end(msg, hdr);
6039f6d2 11954
68eb5503 11955 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11956 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11957 return;
11958
11959 nla_put_failure:
11960 genlmsg_cancel(msg, hdr);
11961 nlmsg_free(msg);
11962}
11963
11964void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11965 struct net_device *netdev, const u8 *buf,
11966 size_t len, gfp_t gfp)
6039f6d2
JM		 11967{
11968 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11969 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11970}
11971
11972void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11973 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11974 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11975{
e6d6e342 11976 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11977 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11978}
11979
53b46b84 11980void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11981 struct net_device *netdev, const u8 *buf,
11982 size_t len, gfp_t gfp)
6039f6d2
JM		 11983{
11984 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11985 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11986}
11987
53b46b84
JM		 11988void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11989 struct net_device *netdev, const u8 *buf,
e6d6e342 11990 size_t len, gfp_t gfp)
6039f6d2
JM		 11991{
11992 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11993 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11994}
11995
6ff57cf8
JB		 11996void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11997 size_t len)
cf4e594e 11998{
947add36
JB		 11999 struct wireless_dev *wdev = dev->ieee80211_ptr;
12000 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12001 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 12002 const struct ieee80211_mgmt *mgmt = (void *)buf;
12003 u32 cmd;
947add36 12004
6ff57cf8
JB		 12005 if (WARN_ON(len < 2))
12006 return;
cf4e594e 12007
6ff57cf8
JB		 12008 if (ieee80211_is_deauth(mgmt->frame_control))
12009 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
12010 else
12011 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 12012
6ff57cf8 12013 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 12014 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 12015}
6ff57cf8 12016EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 12017
1b06bb40
LR		 12018static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
12019 struct net_device *netdev, int cmd,
e6d6e342 12020 const u8 *addr, gfp_t gfp)
1965c853
JM		 12021{
12022 struct sk_buff *msg;
12023 void *hdr;
12024
e6d6e342 12025 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 12026 if (!msg)
12027 return;
12028
12029 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12030 if (!hdr) {
12031 nlmsg_free(msg);
12032 return;
12033 }
12034
9360ffd1
DM		 12035 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12036 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12037 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
12038 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12039 goto nla_put_failure;
1965c853 12040
3b7b72ee 12041 genlmsg_end(msg, hdr);
1965c853 12042
68eb5503 12043 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12044 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 12045 return;
12046
12047 nla_put_failure:
12048 genlmsg_cancel(msg, hdr);
12049 nlmsg_free(msg);
12050}
12051
12052void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12053 struct net_device *netdev, const u8 *addr,
12054 gfp_t gfp)
1965c853
JM		 12055{
12056 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 12057 addr, gfp);
1965c853
JM		 12058}
12059
12060void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 12061 struct net_device *netdev, const u8 *addr,
12062 gfp_t gfp)
1965c853 12063{
e6d6e342
JB		 12064 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
12065 addr, gfp);
1965c853
JM		 12066}
12067
b23aa676
SO		 12068void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
12069 struct net_device *netdev, const u8 *bssid,
12070 const u8 *req_ie, size_t req_ie_len,
12071 const u8 *resp_ie, size_t resp_ie_len,
12072 u16 status, gfp_t gfp)
12073{
12074 struct sk_buff *msg;
12075 void *hdr;
12076
58050fce 12077 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12078 if (!msg)
12079 return;
12080
12081 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
12082 if (!hdr) {
12083 nlmsg_free(msg);
12084 return;
12085 }
12086
9360ffd1
DM		 12087 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12088 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12089 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
12090 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
12091 (req_ie &&
12092 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12093 (resp_ie &&
12094 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12095 goto nla_put_failure;
b23aa676 12096
3b7b72ee 12097 genlmsg_end(msg, hdr);
b23aa676 12098
68eb5503 12099 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12100 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12101 return;
12102
12103 nla_put_failure:
12104 genlmsg_cancel(msg, hdr);
12105 nlmsg_free(msg);
12106
12107}
12108
12109void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
12110 struct net_device *netdev, const u8 *bssid,
12111 const u8 *req_ie, size_t req_ie_len,
12112 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
12113{
12114 struct sk_buff *msg;
12115 void *hdr;
12116
58050fce 12117 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 12118 if (!msg)
12119 return;
12120
12121 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
12122 if (!hdr) {
12123 nlmsg_free(msg);
12124 return;
12125 }
12126
9360ffd1
DM		 12127 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12128 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12129 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
12130 (req_ie &&
12131 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12132 (resp_ie &&
12133 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12134 goto nla_put_failure;
b23aa676 12135
3b7b72ee 12136 genlmsg_end(msg, hdr);
b23aa676 12137
68eb5503 12138 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12139 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 12140 return;
12141
12142 nla_put_failure:
12143 genlmsg_cancel(msg, hdr);
12144 nlmsg_free(msg);
12145
12146}
12147
12148void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
12149 struct net_device *netdev, u16 reason,
667503dd 12150 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 12151{
12152 struct sk_buff *msg;
12153 void *hdr;
12154
58050fce 12155 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 12156 if (!msg)
12157 return;
12158
12159 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12160 if (!hdr) {
12161 nlmsg_free(msg);
12162 return;
12163 }
12164
9360ffd1
DM		 12165 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12166 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12167 (from_ap && reason &&
12168 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12169 (from_ap &&
12170 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12171 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12172 goto nla_put_failure;
b23aa676 12173
3b7b72ee 12174 genlmsg_end(msg, hdr);
b23aa676 12175
68eb5503 12176 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12177 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 12178 return;
12179
12180 nla_put_failure:
12181 genlmsg_cancel(msg, hdr);
12182 nlmsg_free(msg);
12183
12184}
12185
04a773ad
JB		 12186void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12187 struct net_device *netdev, const u8 *bssid,
12188 gfp_t gfp)
12189{
12190 struct sk_buff *msg;
12191 void *hdr;
12192
fd2120ca 12193 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 12194 if (!msg)
12195 return;
12196
12197 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12198 if (!hdr) {
12199 nlmsg_free(msg);
12200 return;
12201 }
12202
9360ffd1
DM		 12203 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12204 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12205 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12206 goto nla_put_failure;
04a773ad 12207
3b7b72ee 12208 genlmsg_end(msg, hdr);
04a773ad 12209
68eb5503 12210 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12211 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 12212 return;
12213
12214 nla_put_failure:
12215 genlmsg_cancel(msg, hdr);
12216 nlmsg_free(msg);
12217}
12218
947add36
JB		 12219void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12220 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12221{
947add36 12222 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12223 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12224 struct sk_buff *msg;
12225 void *hdr;
12226
947add36
JB		 12227 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12228 return;
12229
12230 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12231
c93b5e71
JC		 12232 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12233 if (!msg)
12234 return;
12235
12236 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12237 if (!hdr) {
12238 nlmsg_free(msg);
12239 return;
12240 }
12241
9360ffd1 12242 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12243 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12244 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12245 (ie_len && ie &&
12246 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12247 goto nla_put_failure;
c93b5e71 12248
3b7b72ee 12249 genlmsg_end(msg, hdr);
c93b5e71 12250
68eb5503 12251 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12252 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12253 return;
12254
12255 nla_put_failure:
12256 genlmsg_cancel(msg, hdr);
12257 nlmsg_free(msg);
12258}
947add36 12259EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12260
a3b8b056
JM		 12261void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12262 struct net_device *netdev, const u8 *addr,
12263 enum nl80211_key_type key_type, int key_id,
e6d6e342 12264 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12265{
12266 struct sk_buff *msg;
12267 void *hdr;
12268
e6d6e342 12269 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12270 if (!msg)
12271 return;
12272
12273 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12274 if (!hdr) {
12275 nlmsg_free(msg);
12276 return;
12277 }
12278
9360ffd1
DM		 12279 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12280 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12281 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12282 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12283 (key_id != -1 &&
12284 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12285 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12286 goto nla_put_failure;
a3b8b056 12287
3b7b72ee 12288 genlmsg_end(msg, hdr);
a3b8b056 12289
68eb5503 12290 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12291 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12292 return;
12293
12294 nla_put_failure:
12295 genlmsg_cancel(msg, hdr);
12296 nlmsg_free(msg);
12297}
12298
6bad8766
LR		 12299void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12300 struct ieee80211_channel *channel_before,
12301 struct ieee80211_channel *channel_after)
12302{
12303 struct sk_buff *msg;
12304 void *hdr;
12305 struct nlattr *nl_freq;
12306
fd2120ca 12307 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12308 if (!msg)
12309 return;
12310
12311 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12312 if (!hdr) {
12313 nlmsg_free(msg);
12314 return;
12315 }
12316
12317 /*
12318 * Since we are applying the beacon hint to a wiphy we know its
12319 * wiphy_idx is valid
12320 */
9360ffd1
DM		 12321 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12322 goto nla_put_failure;
6bad8766
LR		 12323
12324 /* Before */
12325 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12326 if (!nl_freq)
12327 goto nla_put_failure;
cdc89b97 12328 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12329 goto nla_put_failure;
12330 nla_nest_end(msg, nl_freq);
12331
12332 /* After */
12333 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12334 if (!nl_freq)
12335 goto nla_put_failure;
cdc89b97 12336 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12337 goto nla_put_failure;
12338 nla_nest_end(msg, nl_freq);
12339
3b7b72ee 12340 genlmsg_end(msg, hdr);
6bad8766 12341
463d0183 12342 rcu_read_lock();
68eb5503 12343 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12344 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12345 rcu_read_unlock();
6bad8766
LR		 12346
12347 return;
12348
12349nla_put_failure:
12350 genlmsg_cancel(msg, hdr);
12351 nlmsg_free(msg);
12352}
12353
9588bbd5
JM		 12354static void nl80211_send_remain_on_chan_event(
12355 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12356 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12357 struct ieee80211_channel *chan,
9588bbd5
JM		 12358 unsigned int duration, gfp_t gfp)
12359{
12360 struct sk_buff *msg;
12361 void *hdr;
12362
12363 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12364 if (!msg)
12365 return;
12366
12367 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12368 if (!hdr) {
12369 nlmsg_free(msg);
12370 return;
12371 }
12372
9360ffd1 12373 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12374 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12375 wdev->netdev->ifindex)) ||
00f53350 12376 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 12377 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12378 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12379 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 12380 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
12381 goto nla_put_failure;
9588bbd5 12382
9360ffd1
DM		 12383 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12384 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12385 goto nla_put_failure;
9588bbd5 12386
3b7b72ee 12387 genlmsg_end(msg, hdr);
9588bbd5 12388
68eb5503 12389 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12390 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12391 return;
12392
12393 nla_put_failure:
12394 genlmsg_cancel(msg, hdr);
12395 nlmsg_free(msg);
12396}
12397
947add36
JB		 12398void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12399 struct ieee80211_channel *chan,
12400 unsigned int duration, gfp_t gfp)
9588bbd5 12401{
947add36 12402 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12403 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12404
12405 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12406 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12407 rdev, wdev, cookie, chan,
42d97a59 12408 duration, gfp);
9588bbd5 12409}
947add36 12410EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12411
947add36
JB		 12412void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12413 struct ieee80211_channel *chan,
12414 gfp_t gfp)
9588bbd5 12415{
947add36 12416 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12417 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12418
12419 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12420 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12421 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12422}
947add36 12423EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12424
947add36
JB		 12425void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12426 struct station_info *sinfo, gfp_t gfp)
98b62183 12427{
947add36 12428 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12429 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12430 struct sk_buff *msg;
12431
947add36
JB		 12432 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12433
58050fce 12434 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12435 if (!msg)
12436 return;
12437
cf5ead82 12438 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12439 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12440 nlmsg_free(msg);
12441 return;
12442 }
12443
68eb5503 12444 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12445 NL80211_MCGRP_MLME, gfp);
98b62183 12446}
947add36 12447EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12448
cf5ead82
JB		 12449void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12450 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12451{
947add36 12452 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12453 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12454 struct sk_buff *msg;
cf5ead82
JB		 12455 struct station_info empty_sinfo = {};
12456
12457 if (!sinfo)
12458 sinfo = &empty_sinfo;
ec15e68b 12459
947add36
JB		 12460 trace_cfg80211_del_sta(dev, mac_addr);
12461
58050fce 12462 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12463 if (!msg)
12464 return;
12465
cf5ead82 12466 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12467 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12468 nlmsg_free(msg);
12469 return;
12470 }
12471
68eb5503 12472 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12473 NL80211_MCGRP_MLME, gfp);
ec15e68b 12474}
cf5ead82 12475EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12476
947add36
JB		 12477void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12478 enum nl80211_connect_failed_reason reason,
12479 gfp_t gfp)
ed44a951 12480{
947add36 12481 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12482 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12483 struct sk_buff *msg;
12484 void *hdr;
12485
12486 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12487 if (!msg)
12488 return;
12489
12490 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12491 if (!hdr) {
12492 nlmsg_free(msg);
12493 return;
12494 }
12495
12496 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12497 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12498 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12499 goto nla_put_failure;
12500
12501 genlmsg_end(msg, hdr);
12502
68eb5503 12503 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12504 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12505 return;
12506
12507 nla_put_failure:
12508 genlmsg_cancel(msg, hdr);
12509 nlmsg_free(msg);
12510}
947add36 12511EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12512
b92ab5d8
JB		 12513static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12514 const u8 *addr, gfp_t gfp)
28946da7
JB		 12515{
12516 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12517 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12518 struct sk_buff *msg;
12519 void *hdr;
15e47304 12520 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12521
15e47304 12522 if (!nlportid)
28946da7
JB		 12523 return false;
12524
12525 msg = nlmsg_new(100, gfp);
12526 if (!msg)
12527 return true;
12528
b92ab5d8 12529 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12530 if (!hdr) {
12531 nlmsg_free(msg);
12532 return true;
12533 }
12534
9360ffd1
DM		 12535 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12536 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12537 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12538 goto nla_put_failure;
28946da7 12539
9c90a9f6 12540 genlmsg_end(msg, hdr);
15e47304 12541 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12542 return true;
12543
12544 nla_put_failure:
12545 genlmsg_cancel(msg, hdr);
12546 nlmsg_free(msg);
12547 return true;
12548}
12549
947add36
JB		 12550bool cfg80211_rx_spurious_frame(struct net_device *dev,
12551 const u8 *addr, gfp_t gfp)
b92ab5d8 12552{
947add36
JB		 12553 struct wireless_dev *wdev = dev->ieee80211_ptr;
12554 bool ret;
12555
12556 trace_cfg80211_rx_spurious_frame(dev, addr);
12557
12558 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12559 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12560 trace_cfg80211_return_bool(false);
12561 return false;
12562 }
12563 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12564 addr, gfp);
12565 trace_cfg80211_return_bool(ret);
12566 return ret;
b92ab5d8 12567}
947add36 12568EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12569
947add36
JB		 12570bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12571 const u8 *addr, gfp_t gfp)
b92ab5d8 12572{
947add36
JB		 12573 struct wireless_dev *wdev = dev->ieee80211_ptr;
12574 bool ret;
12575
12576 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12577
12578 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12579 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12580 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12581 trace_cfg80211_return_bool(false);
12582 return false;
12583 }
12584 ret = __nl80211_unexpected_frame(dev,
12585 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12586 addr, gfp);
12587 trace_cfg80211_return_bool(ret);
12588 return ret;
b92ab5d8 12589}
947add36 12590EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12591
2e161f78 12592int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12593 struct wireless_dev *wdev, u32 nlportid,
804483e9 12594 int freq, int sig_dbm,
19504cf5 12595 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12596{
71bbc994 12597 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12598 struct sk_buff *msg;
12599 void *hdr;
026331c4
JM		 12600
12601 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12602 if (!msg)
12603 return -ENOMEM;
12604
2e161f78 12605 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12606 if (!hdr) {
12607 nlmsg_free(msg);
12608 return -ENOMEM;
12609 }
12610
9360ffd1 12611 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12612 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12613 netdev->ifindex)) ||
a838490b 12614 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12615 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12616 (sig_dbm &&
12617 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12618 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12619 (flags &&
12620 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12621 goto nla_put_failure;
026331c4 12622
3b7b72ee 12623 genlmsg_end(msg, hdr);
026331c4 12624
15e47304 12625 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12626
12627 nla_put_failure:
12628 genlmsg_cancel(msg, hdr);
12629 nlmsg_free(msg);
12630 return -ENOBUFS;
12631}
12632
947add36
JB		 12633void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12634 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12635{
947add36 12636 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12637 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12638 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12639 struct sk_buff *msg;
12640 void *hdr;
12641
947add36
JB		 12642 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12643
026331c4
JM		 12644 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12645 if (!msg)
12646 return;
12647
2e161f78 12648 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12649 if (!hdr) {
12650 nlmsg_free(msg);
12651 return;
12652 }
12653
9360ffd1 12654 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12655 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12656 netdev->ifindex)) ||
a838490b 12657 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12658 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12659 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12660 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12661 goto nla_put_failure;
026331c4 12662
3b7b72ee 12663 genlmsg_end(msg, hdr);
026331c4 12664
68eb5503 12665 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12666 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12667 return;
12668
12669 nla_put_failure:
12670 genlmsg_cancel(msg, hdr);
12671 nlmsg_free(msg);
12672}
947add36 12673EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12674
5b97f49d
JB		 12675static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12676 const char *mac, gfp_t gfp)
d6dc1a38 12677{
947add36 12678 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12679 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12680 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12681 void **cb;
947add36 12682
d6dc1a38 12683 if (!msg)
5b97f49d 12684 return NULL;
d6dc1a38 12685
5b97f49d
JB		 12686 cb = (void **)msg->cb;
12687
12688 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12689 if (!cb[0]) {
d6dc1a38 12690 nlmsg_free(msg);
5b97f49d 12691 return NULL;
d6dc1a38
JO		 12692 }
12693
9360ffd1 12694 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12695 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12696 goto nla_put_failure;
d6dc1a38 12697
5b97f49d 12698 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12699 goto nla_put_failure;
12700
5b97f49d
JB		 12701 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12702 if (!cb[1])
9360ffd1 12703 goto nla_put_failure;
d6dc1a38 12704
5b97f49d 12705 cb[2] = rdev;
d6dc1a38 12706
5b97f49d
JB		 12707 return msg;
12708 nla_put_failure:
12709 nlmsg_free(msg);
12710 return NULL;
12711}
12712
12713static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12714{
12715 void **cb = (void **)msg->cb;
12716 struct cfg80211_registered_device *rdev = cb[2];
12717
12718 nla_nest_end(msg, cb[1]);
12719 genlmsg_end(msg, cb[0]);
12720
12721 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12722
68eb5503 12723 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12724 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12725}
12726
12727void cfg80211_cqm_rssi_notify(struct net_device *dev,
12728 enum nl80211_cqm_rssi_threshold_event rssi_event,
12729 gfp_t gfp)
12730{
12731 struct sk_buff *msg;
12732
12733 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12734
98f03342
JB		 12735 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12736 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12737 return;
12738
5b97f49d
JB		 12739 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12740 if (!msg)
12741 return;
12742
12743 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12744 rssi_event))
12745 goto nla_put_failure;
12746
12747 cfg80211_send_cqm(msg, gfp);
12748
d6dc1a38
JO		 12749 return;
12750
12751 nla_put_failure:
d6dc1a38
JO		 12752 nlmsg_free(msg);
12753}
947add36 12754EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12755
5b97f49d
JB		 12756void cfg80211_cqm_txe_notify(struct net_device *dev,
12757 const u8 *peer, u32 num_packets,
12758 u32 rate, u32 intvl, gfp_t gfp)
12759{
12760 struct sk_buff *msg;
12761
12762 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12763 if (!msg)
12764 return;
12765
12766 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12767 goto nla_put_failure;
12768
12769 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12770 goto nla_put_failure;
12771
12772 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12773 goto nla_put_failure;
12774
12775 cfg80211_send_cqm(msg, gfp);
12776 return;
12777
12778 nla_put_failure:
12779 nlmsg_free(msg);
12780}
12781EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12782
12783void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12784 const u8 *peer, u32 num_packets, gfp_t gfp)
12785{
12786 struct sk_buff *msg;
12787
12788 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12789
12790 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12791 if (!msg)
12792 return;
12793
12794 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12795 goto nla_put_failure;
12796
12797 cfg80211_send_cqm(msg, gfp);
12798 return;
12799
12800 nla_put_failure:
12801 nlmsg_free(msg);
12802}
12803EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12804
98f03342
JB		 12805void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12806{
12807 struct sk_buff *msg;
12808
12809 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12810 if (!msg)
12811 return;
12812
12813 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12814 goto nla_put_failure;
12815
12816 cfg80211_send_cqm(msg, gfp);
12817 return;
12818
12819 nla_put_failure:
12820 nlmsg_free(msg);
12821}
12822EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12823
947add36
JB		 12824static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12825 struct net_device *netdev, const u8 *bssid,
12826 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12827{
12828 struct sk_buff *msg;
12829 struct nlattr *rekey_attr;
12830 void *hdr;
12831
58050fce 12832 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12833 if (!msg)
12834 return;
12835
12836 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12837 if (!hdr) {
12838 nlmsg_free(msg);
12839 return;
12840 }
12841
9360ffd1
DM		 12842 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12843 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12844 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12845 goto nla_put_failure;
e5497d76
JB		 12846
12847 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12848 if (!rekey_attr)
12849 goto nla_put_failure;
12850
9360ffd1
DM		 12851 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12852 NL80211_REPLAY_CTR_LEN, replay_ctr))
12853 goto nla_put_failure;
e5497d76
JB		 12854
12855 nla_nest_end(msg, rekey_attr);
12856
3b7b72ee 12857 genlmsg_end(msg, hdr);
e5497d76 12858
68eb5503 12859 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12860 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12861 return;
12862
12863 nla_put_failure:
12864 genlmsg_cancel(msg, hdr);
12865 nlmsg_free(msg);
12866}
12867
947add36
JB		 12868void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12869 const u8 *replay_ctr, gfp_t gfp)
12870{
12871 struct wireless_dev *wdev = dev->ieee80211_ptr;
12872 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12873 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12874
12875 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12876 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12877}
12878EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12879
12880static void
12881nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12882 struct net_device *netdev, int index,
12883 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12884{
12885 struct sk_buff *msg;
12886 struct nlattr *attr;
12887 void *hdr;
12888
58050fce 12889 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12890 if (!msg)
12891 return;
12892
12893 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12894 if (!hdr) {
12895 nlmsg_free(msg);
12896 return;
12897 }
12898
9360ffd1
DM		 12899 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12900 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12901 goto nla_put_failure;
c9df56b4
JM		 12902
12903 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12904 if (!attr)
12905 goto nla_put_failure;
12906
9360ffd1
DM		 12907 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12908 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12909 (preauth &&
12910 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12911 goto nla_put_failure;
c9df56b4
JM		 12912
12913 nla_nest_end(msg, attr);
12914
3b7b72ee 12915 genlmsg_end(msg, hdr);
c9df56b4 12916
68eb5503 12917 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12918 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12919 return;
12920
12921 nla_put_failure:
12922 genlmsg_cancel(msg, hdr);
12923 nlmsg_free(msg);
12924}
12925
947add36
JB		 12926void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12927 const u8 *bssid, bool preauth, gfp_t gfp)
12928{
12929 struct wireless_dev *wdev = dev->ieee80211_ptr;
12930 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12931 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12932
12933 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12934 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12935}
12936EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12937
12938static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12939 struct net_device *netdev,
12940 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12941 gfp_t gfp,
12942 enum nl80211_commands notif,
12943 u8 count)
5314526b
TP		 12944{
12945 struct sk_buff *msg;
12946 void *hdr;
12947
58050fce 12948 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12949 if (!msg)
12950 return;
12951
f8d7552e 12952 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12953 if (!hdr) {
12954 nlmsg_free(msg);
12955 return;
12956 }
12957
683b6d3b
JB		 12958 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12959 goto nla_put_failure;
12960
12961 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12962 goto nla_put_failure;
5314526b 12963
f8d7552e
LC		 12964 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12965 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12966 goto nla_put_failure;
12967
5314526b
TP		 12968 genlmsg_end(msg, hdr);
12969
68eb5503 12970 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12971 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12972 return;
12973
12974 nla_put_failure:
12975 genlmsg_cancel(msg, hdr);
12976 nlmsg_free(msg);
12977}
12978
947add36
JB		 12979void cfg80211_ch_switch_notify(struct net_device *dev,
12980 struct cfg80211_chan_def *chandef)
84f10708 12981{
947add36
JB		 12982 struct wireless_dev *wdev = dev->ieee80211_ptr;
12983 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12984 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12985
e487eaeb 12986 ASSERT_WDEV_LOCK(wdev);
947add36 12987
e487eaeb 12988 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12989
9e0e2961 12990 wdev->chandef = *chandef;
96f55f12 12991 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12992 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12993 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12994}
12995EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12996
f8d7552e
LC		 12997void cfg80211_ch_switch_started_notify(struct net_device *dev,
12998 struct cfg80211_chan_def *chandef,
12999 u8 count)
13000{
13001 struct wireless_dev *wdev = dev->ieee80211_ptr;
13002 struct wiphy *wiphy = wdev->wiphy;
13003 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13004
13005 trace_cfg80211_ch_switch_started_notify(dev, chandef);
13006
13007 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13008 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
13009}
13010EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
13011
04f39047
SW		 13012void
13013nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 13014 const struct cfg80211_chan_def *chandef,
04f39047
SW		 13015 enum nl80211_radar_event event,
13016 struct net_device *netdev, gfp_t gfp)
13017{
13018 struct sk_buff *msg;
13019 void *hdr;
13020
13021 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13022 if (!msg)
13023 return;
13024
13025 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
13026 if (!hdr) {
13027 nlmsg_free(msg);
13028 return;
13029 }
13030
13031 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
13032 goto nla_put_failure;
13033
13034 /* NOP and radar events don't need a netdev parameter */
13035 if (netdev) {
13036 struct wireless_dev *wdev = netdev->ieee80211_ptr;
13037
13038 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13039 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13040 goto nla_put_failure;
13041 }
13042
13043 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
13044 goto nla_put_failure;
13045
13046 if (nl80211_send_chandef(msg, chandef))
13047 goto nla_put_failure;
13048
9c90a9f6 13049 genlmsg_end(msg, hdr);
04f39047 13050
68eb5503 13051 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13052 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 13053 return;
13054
13055 nla_put_failure:
13056 genlmsg_cancel(msg, hdr);
13057 nlmsg_free(msg);
13058}
13059
7f6cf311
JB		 13060void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
13061 u64 cookie, bool acked, gfp_t gfp)
13062{
13063 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13064 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 13065 struct sk_buff *msg;
13066 void *hdr;
7f6cf311 13067
4ee3e063
BL		 13068 trace_cfg80211_probe_status(dev, addr, cookie, acked);
13069
58050fce 13070 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 13071
7f6cf311
JB		 13072 if (!msg)
13073 return;
13074
13075 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
13076 if (!hdr) {
13077 nlmsg_free(msg);
13078 return;
13079 }
13080
9360ffd1
DM		 13081 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13082 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13083 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
13084 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
13085 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
13086 goto nla_put_failure;
7f6cf311 13087
9c90a9f6 13088 genlmsg_end(msg, hdr);
7f6cf311 13089
68eb5503 13090 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13091 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 13092 return;
13093
13094 nla_put_failure:
13095 genlmsg_cancel(msg, hdr);
13096 nlmsg_free(msg);
13097}
13098EXPORT_SYMBOL(cfg80211_probe_status);
13099
5e760230
JB		 13100void cfg80211_report_obss_beacon(struct wiphy *wiphy,
13101 const u8 *frame, size_t len,
37c73b5f 13102 int freq, int sig_dbm)
5e760230 13103{
f26cbf40 13104 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 13105 struct sk_buff *msg;
13106 void *hdr;
37c73b5f 13107 struct cfg80211_beacon_registration *reg;
5e760230 13108
4ee3e063
BL		 13109 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
13110
37c73b5f
BG		 13111 spin_lock_bh(&rdev->beacon_registrations_lock);
13112 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13113 msg = nlmsg_new(len + 100, GFP_ATOMIC);
13114 if (!msg) {
13115 spin_unlock_bh(&rdev->beacon_registrations_lock);
13116 return;
13117 }
5e760230 13118
37c73b5f
BG		 13119 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13120 if (!hdr)
13121 goto nla_put_failure;
5e760230 13122
37c73b5f
BG		 13123 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13124 (freq &&
13125 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
13126 (sig_dbm &&
13127 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13128 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
13129 goto nla_put_failure;
5e760230 13130
37c73b5f 13131 genlmsg_end(msg, hdr);
5e760230 13132
37c73b5f
BG		 13133 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
13134 }
13135 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 13136 return;
13137
13138 nla_put_failure:
37c73b5f
BG		 13139 spin_unlock_bh(&rdev->beacon_registrations_lock);
13140 if (hdr)
13141 genlmsg_cancel(msg, hdr);
5e760230
JB		 13142 nlmsg_free(msg);
13143}
13144EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13145
cd8f7cb4 13146#ifdef CONFIG_PM
8cd4d456
LC		 13147static int cfg80211_net_detect_results(struct sk_buff *msg,
13148 struct cfg80211_wowlan_wakeup *wakeup)
13149{
13150 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13151 struct nlattr *nl_results, *nl_match, *nl_freqs;
13152 int i, j;
13153
13154 nl_results = nla_nest_start(
13155 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13156 if (!nl_results)
13157 return -EMSGSIZE;
13158
13159 for (i = 0; i < nd->n_matches; i++) {
13160 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13161
13162 nl_match = nla_nest_start(msg, i);
13163 if (!nl_match)
13164 break;
13165
13166 /* The SSID attribute is optional in nl80211, but for
13167 * simplicity reasons it's always present in the
13168 * cfg80211 structure. If a driver can't pass the
13169 * SSID, that needs to be changed. A zero length SSID
13170 * is still a valid SSID (wildcard), so it cannot be
13171 * used for this purpose.
13172 */
13173 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13174 match->ssid.ssid)) {
13175 nla_nest_cancel(msg, nl_match);
13176 goto out;
13177 }
13178
13179 if (match->n_channels) {
13180 nl_freqs = nla_nest_start(
13181 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13182 if (!nl_freqs) {
13183 nla_nest_cancel(msg, nl_match);
13184 goto out;
13185 }
13186
13187 for (j = 0; j < match->n_channels; j++) {
5528fae8 13188 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 13189 nla_nest_cancel(msg, nl_freqs);
13190 nla_nest_cancel(msg, nl_match);
13191 goto out;
13192 }
13193 }
13194
13195 nla_nest_end(msg, nl_freqs);
13196 }
13197
13198 nla_nest_end(msg, nl_match);
13199 }
13200
13201out:
13202 nla_nest_end(msg, nl_results);
13203 return 0;
13204}
13205
cd8f7cb4
JB		 13206void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13207 struct cfg80211_wowlan_wakeup *wakeup,
13208 gfp_t gfp)
13209{
f26cbf40 13210 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 13211 struct sk_buff *msg;
13212 void *hdr;
9c90a9f6 13213 int size = 200;
cd8f7cb4
JB		 13214
13215 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13216
13217 if (wakeup)
13218 size += wakeup->packet_present_len;
13219
13220 msg = nlmsg_new(size, gfp);
13221 if (!msg)
13222 return;
13223
13224 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13225 if (!hdr)
13226 goto free_msg;
13227
13228 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13229 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13230 goto free_msg;
13231
13232 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13233 wdev->netdev->ifindex))
13234 goto free_msg;
13235
13236 if (wakeup) {
13237 struct nlattr *reasons;
13238
13239 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13240 if (!reasons)
13241 goto free_msg;
cd8f7cb4
JB		 13242
13243 if (wakeup->disconnect &&
13244 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13245 goto free_msg;
13246 if (wakeup->magic_pkt &&
13247 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13248 goto free_msg;
13249 if (wakeup->gtk_rekey_failure &&
13250 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13251 goto free_msg;
13252 if (wakeup->eap_identity_req &&
13253 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13254 goto free_msg;
13255 if (wakeup->four_way_handshake &&
13256 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13257 goto free_msg;
13258 if (wakeup->rfkill_release &&
13259 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13260 goto free_msg;
13261
13262 if (wakeup->pattern_idx >= 0 &&
13263 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13264 wakeup->pattern_idx))
13265 goto free_msg;
13266
ae917c9f
JB		 13267 if (wakeup->tcp_match &&
13268 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13269 goto free_msg;
2a0e047e 13270
ae917c9f
JB		 13271 if (wakeup->tcp_connlost &&
13272 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13273 goto free_msg;
2a0e047e 13274
ae917c9f
JB		 13275 if (wakeup->tcp_nomoretokens &&
13276 nla_put_flag(msg,
13277 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13278 goto free_msg;
2a0e047e 13279
cd8f7cb4
JB		 13280 if (wakeup->packet) {
13281 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13282 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13283
13284 if (!wakeup->packet_80211) {
13285 pkt_attr =
13286 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13287 len_attr =
13288 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13289 }
13290
13291 if (wakeup->packet_len &&
13292 nla_put_u32(msg, len_attr, wakeup->packet_len))
13293 goto free_msg;
13294
13295 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13296 wakeup->packet))
13297 goto free_msg;
13298 }
13299
8cd4d456
LC		 13300 if (wakeup->net_detect &&
13301 cfg80211_net_detect_results(msg, wakeup))
13302 goto free_msg;
13303
cd8f7cb4
JB		 13304 nla_nest_end(msg, reasons);
13305 }
13306
9c90a9f6 13307 genlmsg_end(msg, hdr);
cd8f7cb4 13308
68eb5503 13309 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13310 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13311 return;
13312
13313 free_msg:
13314 nlmsg_free(msg);
13315}
13316EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13317#endif
13318
3475b094
JM		 13319void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13320 enum nl80211_tdls_operation oper,
13321 u16 reason_code, gfp_t gfp)
13322{
13323 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13324 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13325 struct sk_buff *msg;
13326 void *hdr;
3475b094
JM		 13327
13328 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13329 reason_code);
13330
13331 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13332 if (!msg)
13333 return;
13334
13335 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13336 if (!hdr) {
13337 nlmsg_free(msg);
13338 return;
13339 }
13340
13341 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13342 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13343 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13344 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13345 (reason_code > 0 &&
13346 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13347 goto nla_put_failure;
13348
9c90a9f6 13349 genlmsg_end(msg, hdr);
3475b094 13350
68eb5503 13351 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13352 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13353 return;
13354
13355 nla_put_failure:
13356 genlmsg_cancel(msg, hdr);
13357 nlmsg_free(msg);
13358}
13359EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13360
026331c4
JM		 13361static int nl80211_netlink_notify(struct notifier_block * nb,
13362 unsigned long state,
13363 void *_notify)
13364{
13365 struct netlink_notify *notify = _notify;
13366 struct cfg80211_registered_device *rdev;
13367 struct wireless_dev *wdev;
37c73b5f 13368 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 13369
13370 if (state != NETLINK_URELEASE)
13371 return NOTIFY_DONE;
13372
13373 rcu_read_lock();
13374
5e760230 13375 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13376 bool schedule_destroy_work = false;
93a1e86c
JR		 13377 bool schedule_scan_stop = false;
13378 struct cfg80211_sched_scan_request *sched_scan_req =
13379 rcu_dereference(rdev->sched_scan_req);
13380
13381 if (sched_scan_req && notify->portid &&
13382 sched_scan_req->owner_nlportid == notify->portid)
13383 schedule_scan_stop = true;
78f22b6a
JB		 13384
13385 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 13386 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13387
78f22b6a
JB		 13388 if (wdev->owner_nlportid == notify->portid)
13389 schedule_destroy_work = true;
13390 }
13391
37c73b5f
BG		 13392 spin_lock_bh(&rdev->beacon_registrations_lock);
13393 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13394 list) {
13395 if (reg->nlportid == notify->portid) {
13396 list_del(&reg->list);
13397 kfree(reg);
13398 break;
13399 }
13400 }
13401 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13402
13403 if (schedule_destroy_work) {
13404 struct cfg80211_iface_destroy *destroy;
13405
13406 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13407 if (destroy) {
13408 destroy->nlportid = notify->portid;
13409 spin_lock(&rdev->destroy_list_lock);
13410 list_add(&destroy->list, &rdev->destroy_list);
13411 spin_unlock(&rdev->destroy_list_lock);
13412 schedule_work(&rdev->destroy_work);
13413 }
93a1e86c
JR		 13414 } else if (schedule_scan_stop) {
13415 sched_scan_req->owner_nlportid = 0;
13416
13417 if (rdev->ops->sched_scan_stop &&
13418 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13419 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13420 }
5e760230 13421 }
026331c4
JM		 13422
13423 rcu_read_unlock();
13424
05050753
I		 13425 /*
13426 * It is possible that the user space process that is controlling the
13427 * indoor setting disappeared, so notify the regulatory core.
13428 */
13429 regulatory_netlink_notify(notify->portid);
6784c7db 13430 return NOTIFY_OK;
026331c4
JM		 13431}
13432
13433static struct notifier_block nl80211_netlink_notifier = {
13434 .notifier_call = nl80211_netlink_notify,
13435};
13436
355199e0
JM		 13437void cfg80211_ft_event(struct net_device *netdev,
13438 struct cfg80211_ft_event_params *ft_event)
13439{
13440 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13441 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13442 struct sk_buff *msg;
13443 void *hdr;
355199e0
JM		 13444
13445 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13446
13447 if (!ft_event->target_ap)
13448 return;
13449
13450 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13451 if (!msg)
13452 return;
13453
13454 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13455 if (!hdr)
13456 goto out;
355199e0 13457
ae917c9f
JB		 13458 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13459 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13460 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13461 goto out;
355199e0 13462
ae917c9f
JB		 13463 if (ft_event->ies &&
13464 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13465 goto out;
13466 if (ft_event->ric_ies &&
13467 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13468 ft_event->ric_ies))
13469 goto out;
355199e0 13470
9c90a9f6 13471 genlmsg_end(msg, hdr);
355199e0 13472
68eb5503 13473 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13474 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13475 return;
13476 out:
13477 nlmsg_free(msg);
355199e0
JM		 13478}
13479EXPORT_SYMBOL(cfg80211_ft_event);
13480
5de17984
AS		 13481void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13482{
13483 struct cfg80211_registered_device *rdev;
13484 struct sk_buff *msg;
13485 void *hdr;
13486 u32 nlportid;
13487
f26cbf40 13488 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13489 if (!rdev->crit_proto_nlportid)
13490 return;
13491
13492 nlportid = rdev->crit_proto_nlportid;
13493 rdev->crit_proto_nlportid = 0;
13494
13495 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13496 if (!msg)
13497 return;
13498
13499 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13500 if (!hdr)
13501 goto nla_put_failure;
13502
13503 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13504 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13505 goto nla_put_failure;
13506
13507 genlmsg_end(msg, hdr);
13508
13509 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13510 return;
13511
13512 nla_put_failure:
13513 if (hdr)
13514 genlmsg_cancel(msg, hdr);
13515 nlmsg_free(msg);
13516
13517}
13518EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13519
348baf0e
JB		 13520void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13521{
13522 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13523 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13524 struct sk_buff *msg;
13525 void *hdr;
13526
13527 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13528 if (!msg)
13529 return;
13530
13531 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13532 if (!hdr)
13533 goto out;
13534
13535 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13536 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13537 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13538 goto out;
13539
13540 genlmsg_end(msg, hdr);
13541
13542 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13543 NL80211_MCGRP_MLME, GFP_KERNEL);
13544 return;
13545 out:
13546 nlmsg_free(msg);
13547}
13548
55682965
JB		 13549/* initialisation/exit functions */
13550
13551int nl80211_init(void)
13552{
0d63cbb5 13553 int err;
55682965 13554
2a94fe48
JB		 13555 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13556 nl80211_mcgrps);
55682965
JB		 13557 if (err)
13558 return err;
13559
026331c4
JM		 13560 err = netlink_register_notifier(&nl80211_netlink_notifier);
13561 if (err)
13562 goto err_out;
13563
55682965
JB		 13564 return 0;
13565 err_out:
13566 genl_unregister_family(&nl80211_fam);
13567 return err;
13568}
13569
13570void nl80211_exit(void)
13571{
026331c4 13572 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13573 genl_unregister_family(&nl80211_fam);
13574}
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