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cfg80211: reg: remove useless reg_timeout scheduling
[deliverable/linux.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
7bdbe400 6 * Copyright 2015 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 },
55682965
JB		 404};
405
e31b8213 406/* policy for the key attributes */
b54452b0 407static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 408 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 409 [NL80211_KEY_IDX] = { .type = NLA_U8 },
410 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 411 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 412 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
413 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 414 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 415 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
416};
417
418/* policy for the key default flags */
419static const struct nla_policy
420nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
421 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
422 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 423};
424
ff1b6e69
JB		 425/* policy for WoWLAN attributes */
426static const struct nla_policy
427nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
428 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
431 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 432 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
433 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
435 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 436 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 437 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 438};
439
440static const struct nla_policy
441nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
442 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
443 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
444 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
445 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
446 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
447 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
448 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
449 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
450 },
451 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
452 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
453 },
454 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
455 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
456 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 457};
458
be29b99a
AK		 459/* policy for coalesce rule attributes */
460static const struct nla_policy
461nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
462 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
463 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
464 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
465};
466
e5497d76
JB		 467/* policy for GTK rekey offload attributes */
468static const struct nla_policy
469nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
470 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
471 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
472 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
473};
474
a1f1c21c
LC		 475static const struct nla_policy
476nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 477 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 478 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 479 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 480};
481
3b06d277
AS		 482static const struct nla_policy
483nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
484 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
485 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
486};
487
97990a06
JB		 488static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
489 struct netlink_callback *cb,
490 struct cfg80211_registered_device **rdev,
491 struct wireless_dev **wdev)
a043897a 492{
97990a06 493 int err;
a043897a 494
97990a06 495 rtnl_lock();
a043897a 496
97990a06
JB		 497 if (!cb->args[0]) {
498 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
499 nl80211_fam.attrbuf, nl80211_fam.maxattr,
500 nl80211_policy);
501 if (err)
502 goto out_unlock;
67748893 503
97990a06
JB		 504 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
505 nl80211_fam.attrbuf);
506 if (IS_ERR(*wdev)) {
507 err = PTR_ERR(*wdev);
508 goto out_unlock;
509 }
f26cbf40 510 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 511 /* 0 is the first index - add 1 to parse only once */
512 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 513 cb->args[1] = (*wdev)->identifier;
514 } else {
c319d50b
JB		 515 /* subtract the 1 again here */
516 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 517 struct wireless_dev *tmp;
67748893 518
97990a06
JB		 519 if (!wiphy) {
520 err = -ENODEV;
521 goto out_unlock;
522 }
f26cbf40 523 *rdev = wiphy_to_rdev(wiphy);
97990a06 524 *wdev = NULL;
67748893 525
97990a06
JB		 526 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
527 if (tmp->identifier == cb->args[1]) {
528 *wdev = tmp;
529 break;
530 }
531 }
67748893 532
97990a06
JB		 533 if (!*wdev) {
534 err = -ENODEV;
535 goto out_unlock;
536 }
67748893
JB		 537 }
538
67748893 539 return 0;
97990a06 540 out_unlock:
67748893
JB		 541 rtnl_unlock();
542 return err;
543}
544
97990a06 545static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 546{
67748893
JB		 547 rtnl_unlock();
548}
549
f4a11bb0
JB		 550/* IE validation */
551static bool is_valid_ie_attr(const struct nlattr *attr)
552{
553 const u8 *pos;
554 int len;
555
556 if (!attr)
557 return true;
558
559 pos = nla_data(attr);
560 len = nla_len(attr);
561
562 while (len) {
563 u8 elemlen;
564
565 if (len < 2)
566 return false;
567 len -= 2;
568
569 elemlen = pos[1];
570 if (elemlen > len)
571 return false;
572
573 len -= elemlen;
574 pos += 2 + elemlen;
575 }
576
577 return true;
578}
579
55682965 580/* message building helper */
15e47304 581static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 582 int flags, u8 cmd)
583{
584 /* since there is no private header just add the generic one */
15e47304 585 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 586}
587
5dab3b8a 588static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 589 struct ieee80211_channel *chan,
590 bool large)
5dab3b8a 591{
ea077c1c
RL		 592 /* Some channels must be completely excluded from the
593 * list to protect old user-space tools from breaking
594 */
595 if (!large && chan->flags &
596 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
597 return 0;
598
9360ffd1
DM		 599 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
600 chan->center_freq))
601 goto nla_put_failure;
5dab3b8a 602
9360ffd1
DM		 603 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
604 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
605 goto nla_put_failure;
8fe02e16
LR		 606 if (chan->flags & IEEE80211_CHAN_NO_IR) {
607 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
608 goto nla_put_failure;
609 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
610 goto nla_put_failure;
611 }
cdc89b97
JB		 612 if (chan->flags & IEEE80211_CHAN_RADAR) {
613 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
614 goto nla_put_failure;
615 if (large) {
616 u32 time;
617
618 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
619
620 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
621 chan->dfs_state))
622 goto nla_put_failure;
623 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
624 time))
625 goto nla_put_failure;
089027e5
JD		 626 if (nla_put_u32(msg,
627 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
628 chan->dfs_cac_ms))
629 goto nla_put_failure;
cdc89b97
JB		 630 }
631 }
5dab3b8a 632
fe1abafd
JB		 633 if (large) {
634 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
635 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
636 goto nla_put_failure;
637 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
638 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
639 goto nla_put_failure;
640 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
641 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
642 goto nla_put_failure;
643 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
644 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
645 goto nla_put_failure;
570dbde1
DS		 646 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
647 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
648 goto nla_put_failure;
06f207fc
AN		 649 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
650 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 651 goto nla_put_failure;
ea077c1c
RL		 652 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
653 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
654 goto nla_put_failure;
655 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
656 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
657 goto nla_put_failure;
fe1abafd
JB		 658 }
659
9360ffd1
DM		 660 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
661 DBM_TO_MBM(chan->max_power)))
662 goto nla_put_failure;
5dab3b8a
LR		 663
664 return 0;
665
666 nla_put_failure:
667 return -ENOBUFS;
668}
669
55682965
JB		 670/* netlink command implementations */
671
b9454e83
JB		 672struct key_parse {
673 struct key_params p;
674 int idx;
e31b8213 675 int type;
b9454e83 676 bool def, defmgmt;
dbd2fd65 677 bool def_uni, def_multi;
b9454e83
JB		 678};
679
680static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
681{
682 struct nlattr *tb[NL80211_KEY_MAX + 1];
683 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
684 nl80211_key_policy);
685 if (err)
686 return err;
687
688 k->def = !!tb[NL80211_KEY_DEFAULT];
689 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
690
dbd2fd65
JB		 691 if (k->def) {
692 k->def_uni = true;
693 k->def_multi = true;
694 }
695 if (k->defmgmt)
696 k->def_multi = true;
697
b9454e83
JB		 698 if (tb[NL80211_KEY_IDX])
699 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
700
701 if (tb[NL80211_KEY_DATA]) {
702 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
703 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
704 }
705
706 if (tb[NL80211_KEY_SEQ]) {
707 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
708 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
709 }
710
711 if (tb[NL80211_KEY_CIPHER])
712 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
713
e31b8213
JB		 714 if (tb[NL80211_KEY_TYPE]) {
715 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
716 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
717 return -EINVAL;
718 }
719
dbd2fd65
JB		 720 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
721 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 722 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
723 tb[NL80211_KEY_DEFAULT_TYPES],
724 nl80211_key_default_policy);
dbd2fd65
JB		 725 if (err)
726 return err;
727
728 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
729 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
730 }
731
b9454e83
JB		 732 return 0;
733}
734
735static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
736{
737 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
738 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
739 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
740 }
741
742 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
743 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
744 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
745 }
746
747 if (info->attrs[NL80211_ATTR_KEY_IDX])
748 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
749
750 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
751 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
752
753 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
754 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
755
dbd2fd65
JB		 756 if (k->def) {
757 k->def_uni = true;
758 k->def_multi = true;
759 }
760 if (k->defmgmt)
761 k->def_multi = true;
762
e31b8213
JB		 763 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
764 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
765 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
766 return -EINVAL;
767 }
768
dbd2fd65
JB		 769 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
770 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
771 int err = nla_parse_nested(
772 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
773 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
774 nl80211_key_default_policy);
775 if (err)
776 return err;
777
778 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
779 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
780 }
781
b9454e83
JB		 782 return 0;
783}
784
785static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
786{
787 int err;
788
789 memset(k, 0, sizeof(*k));
790 k->idx = -1;
e31b8213 791 k->type = -1;
b9454e83
JB		 792
793 if (info->attrs[NL80211_ATTR_KEY])
794 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
795 else
796 err = nl80211_parse_key_old(info, k);
797
798 if (err)
799 return err;
800
801 if (k->def && k->defmgmt)
802 return -EINVAL;
803
dbd2fd65
JB		 804 if (k->defmgmt) {
805 if (k->def_uni || !k->def_multi)
806 return -EINVAL;
807 }
808
b9454e83
JB		 809 if (k->idx != -1) {
810 if (k->defmgmt) {
811 if (k->idx < 4 || k->idx > 5)
812 return -EINVAL;
813 } else if (k->def) {
814 if (k->idx < 0 || k->idx > 3)
815 return -EINVAL;
816 } else {
817 if (k->idx < 0 || k->idx > 5)
818 return -EINVAL;
819 }
820 }
821
822 return 0;
823}
824
fffd0934
JB		 825static struct cfg80211_cached_keys *
826nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 827 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 828{
829 struct key_parse parse;
830 struct nlattr *key;
831 struct cfg80211_cached_keys *result;
832 int rem, err, def = 0;
833
834 result = kzalloc(sizeof(*result), GFP_KERNEL);
835 if (!result)
836 return ERR_PTR(-ENOMEM);
837
838 result->def = -1;
839 result->defmgmt = -1;
840
841 nla_for_each_nested(key, keys, rem) {
842 memset(&parse, 0, sizeof(parse));
843 parse.idx = -1;
844
845 err = nl80211_parse_key_new(key, &parse);
846 if (err)
847 goto error;
848 err = -EINVAL;
849 if (!parse.p.key)
850 goto error;
851 if (parse.idx < 0 || parse.idx > 4)
852 goto error;
853 if (parse.def) {
854 if (def)
855 goto error;
856 def = 1;
857 result->def = parse.idx;
dbd2fd65
JB		 858 if (!parse.def_uni || !parse.def_multi)
859 goto error;
fffd0934
JB		 860 } else if (parse.defmgmt)
861 goto error;
862 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 863 parse.idx, false, NULL);
fffd0934
JB		 864 if (err)
865 goto error;
866 result->params[parse.idx].cipher = parse.p.cipher;
867 result->params[parse.idx].key_len = parse.p.key_len;
868 result->params[parse.idx].key = result->data[parse.idx];
869 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 870
871 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
872 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
873 if (no_ht)
874 *no_ht = true;
875 }
fffd0934
JB		 876 }
877
878 return result;
879 error:
880 kfree(result);
881 return ERR_PTR(err);
882}
883
884static int nl80211_key_allowed(struct wireless_dev *wdev)
885{
886 ASSERT_WDEV_LOCK(wdev);
887
fffd0934
JB		 888 switch (wdev->iftype) {
889 case NL80211_IFTYPE_AP:
890 case NL80211_IFTYPE_AP_VLAN:
074ac8df 891 case NL80211_IFTYPE_P2P_GO:
ff973af7 892 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 893 break;
894 case NL80211_IFTYPE_ADHOC:
fffd0934 895 case NL80211_IFTYPE_STATION:
074ac8df 896 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 897 if (!wdev->current_bss)
fffd0934
JB		 898 return -ENOLINK;
899 break;
de4fcbad 900 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 901 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 902 case NL80211_IFTYPE_MONITOR:
903 case NL80211_IFTYPE_P2P_DEVICE:
904 case NL80211_IFTYPE_WDS:
905 case NUM_NL80211_IFTYPES:
fffd0934
JB		 906 return -EINVAL;
907 }
908
909 return 0;
910}
911
664834de
JM		 912static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
913 struct nlattr *tb)
914{
915 struct ieee80211_channel *chan;
916
917 if (tb == NULL)
918 return NULL;
919 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
920 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
921 return NULL;
922 return chan;
923}
924
7527a782
JB		 925static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
926{
927 struct nlattr *nl_modes = nla_nest_start(msg, attr);
928 int i;
929
930 if (!nl_modes)
931 goto nla_put_failure;
932
933 i = 0;
934 while (ifmodes) {
9360ffd1
DM		 935 if ((ifmodes & 1) && nla_put_flag(msg, i))
936 goto nla_put_failure;
7527a782
JB		 937 ifmodes >>= 1;
938 i++;
939 }
940
941 nla_nest_end(msg, nl_modes);
942 return 0;
943
944nla_put_failure:
945 return -ENOBUFS;
946}
947
948static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 949 struct sk_buff *msg,
950 bool large)
7527a782
JB		 951{
952 struct nlattr *nl_combis;
953 int i, j;
954
955 nl_combis = nla_nest_start(msg,
956 NL80211_ATTR_INTERFACE_COMBINATIONS);
957 if (!nl_combis)
958 goto nla_put_failure;
959
960 for (i = 0; i < wiphy->n_iface_combinations; i++) {
961 const struct ieee80211_iface_combination *c;
962 struct nlattr *nl_combi, *nl_limits;
963
964 c = &wiphy->iface_combinations[i];
965
966 nl_combi = nla_nest_start(msg, i + 1);
967 if (!nl_combi)
968 goto nla_put_failure;
969
970 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
971 if (!nl_limits)
972 goto nla_put_failure;
973
974 for (j = 0; j < c->n_limits; j++) {
975 struct nlattr *nl_limit;
976
977 nl_limit = nla_nest_start(msg, j + 1);
978 if (!nl_limit)
979 goto nla_put_failure;
9360ffd1
DM		 980 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
981 c->limits[j].max))
982 goto nla_put_failure;
7527a782
JB		 983 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
984 c->limits[j].types))
985 goto nla_put_failure;
986 nla_nest_end(msg, nl_limit);
987 }
988
989 nla_nest_end(msg, nl_limits);
990
9360ffd1
DM		 991 if (c->beacon_int_infra_match &&
992 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
993 goto nla_put_failure;
994 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
995 c->num_different_channels) ||
996 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
997 c->max_interfaces))
998 goto nla_put_failure;
cdc89b97 999 if (large &&
8c48b50a
FF		 1000 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1001 c->radar_detect_widths) ||
1002 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1003 c->radar_detect_regions)))
cdc89b97 1004 goto nla_put_failure;
7527a782
JB		 1005
1006 nla_nest_end(msg, nl_combi);
1007 }
1008
1009 nla_nest_end(msg, nl_combis);
1010
1011 return 0;
1012nla_put_failure:
1013 return -ENOBUFS;
1014}
1015
3713b4e3 1016#ifdef CONFIG_PM
b56cf720
JB		 1017static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1018 struct sk_buff *msg)
1019{
964dc9e2 1020 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1021 struct nlattr *nl_tcp;
1022
1023 if (!tcp)
1024 return 0;
1025
1026 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1027 if (!nl_tcp)
1028 return -ENOBUFS;
1029
1030 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1031 tcp->data_payload_max))
1032 return -ENOBUFS;
1033
1034 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1035 tcp->data_payload_max))
1036 return -ENOBUFS;
1037
1038 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1039 return -ENOBUFS;
1040
1041 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1042 sizeof(*tcp->tok), tcp->tok))
1043 return -ENOBUFS;
1044
1045 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1046 tcp->data_interval_max))
1047 return -ENOBUFS;
1048
1049 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1050 tcp->wake_payload_max))
1051 return -ENOBUFS;
1052
1053 nla_nest_end(msg, nl_tcp);
1054 return 0;
1055}
1056
3713b4e3 1057static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1058 struct cfg80211_registered_device *rdev,
b56cf720 1059 bool large)
55682965 1060{
3713b4e3 1061 struct nlattr *nl_wowlan;
55682965 1062
1b8ec87a 1063 if (!rdev->wiphy.wowlan)
3713b4e3 1064 return 0;
55682965 1065
3713b4e3
JB		 1066 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1067 if (!nl_wowlan)
1068 return -ENOBUFS;
9360ffd1 1069
1b8ec87a 1070 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1071 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1072 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1073 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1074 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1075 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1076 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1077 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1078 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1079 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1080 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1081 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1082 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1083 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1084 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1085 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1086 return -ENOBUFS;
9360ffd1 1087
1b8ec87a 1088 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1089 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1090 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1091 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1092 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1093 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1094 };
9360ffd1 1095
3713b4e3
JB		 1096 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1097 sizeof(pat), &pat))
1098 return -ENOBUFS;
1099 }
9360ffd1 1100
75453ccb
LC		 1101 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1102 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1103 rdev->wiphy.wowlan->max_nd_match_sets))
1104 return -ENOBUFS;
1105
1b8ec87a 1106 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1107 return -ENOBUFS;
1108
3713b4e3 1109 nla_nest_end(msg, nl_wowlan);
9360ffd1 1110
3713b4e3
JB		 1111 return 0;
1112}
1113#endif
9360ffd1 1114
be29b99a 1115static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1116 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1117{
1118 struct nl80211_coalesce_rule_support rule;
1119
1b8ec87a 1120 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1121 return 0;
1122
1b8ec87a
ZG		 1123 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1124 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1125 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1126 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1127 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1128 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1129
1130 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1131 return -ENOBUFS;
1132
1133 return 0;
1134}
1135
3713b4e3
JB		 1136static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1137 struct ieee80211_supported_band *sband)
1138{
1139 struct nlattr *nl_rates, *nl_rate;
1140 struct ieee80211_rate *rate;
1141 int i;
87bbbe22 1142
3713b4e3
JB		 1143 /* add HT info */
1144 if (sband->ht_cap.ht_supported &&
1145 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1146 sizeof(sband->ht_cap.mcs),
1147 &sband->ht_cap.mcs) ||
1148 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1149 sband->ht_cap.cap) ||
1150 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1151 sband->ht_cap.ampdu_factor) ||
1152 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1153 sband->ht_cap.ampdu_density)))
1154 return -ENOBUFS;
afe0cbf8 1155
3713b4e3
JB		 1156 /* add VHT info */
1157 if (sband->vht_cap.vht_supported &&
1158 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1159 sizeof(sband->vht_cap.vht_mcs),
1160 &sband->vht_cap.vht_mcs) ||
1161 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1162 sband->vht_cap.cap)))
1163 return -ENOBUFS;
f59ac048 1164
3713b4e3
JB		 1165 /* add bitrates */
1166 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1167 if (!nl_rates)
1168 return -ENOBUFS;
ee688b00 1169
3713b4e3
JB		 1170 for (i = 0; i < sband->n_bitrates; i++) {
1171 nl_rate = nla_nest_start(msg, i);
1172 if (!nl_rate)
1173 return -ENOBUFS;
ee688b00 1174
3713b4e3
JB		 1175 rate = &sband->bitrates[i];
1176 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1177 rate->bitrate))
1178 return -ENOBUFS;
1179 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1180 nla_put_flag(msg,
1181 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1182 return -ENOBUFS;
ee688b00 1183
3713b4e3
JB		 1184 nla_nest_end(msg, nl_rate);
1185 }
d51626df 1186
3713b4e3 1187 nla_nest_end(msg, nl_rates);
bf0c111e 1188
3713b4e3
JB		 1189 return 0;
1190}
ee688b00 1191
3713b4e3
JB		 1192static int
1193nl80211_send_mgmt_stypes(struct sk_buff *msg,
1194 const struct ieee80211_txrx_stypes *mgmt_stypes)
1195{
1196 u16 stypes;
1197 struct nlattr *nl_ftypes, *nl_ifs;
1198 enum nl80211_iftype ift;
1199 int i;
ee688b00 1200
3713b4e3
JB		 1201 if (!mgmt_stypes)
1202 return 0;
5dab3b8a 1203
3713b4e3
JB		 1204 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1205 if (!nl_ifs)
1206 return -ENOBUFS;
e2f367f2 1207
3713b4e3
JB		 1208 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1209 nl_ftypes = nla_nest_start(msg, ift);
1210 if (!nl_ftypes)
1211 return -ENOBUFS;
1212 i = 0;
1213 stypes = mgmt_stypes[ift].tx;
1214 while (stypes) {
1215 if ((stypes & 1) &&
1216 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1217 (i << 4) | IEEE80211_FTYPE_MGMT))
1218 return -ENOBUFS;
1219 stypes >>= 1;
1220 i++;
ee688b00 1221 }
3713b4e3
JB		 1222 nla_nest_end(msg, nl_ftypes);
1223 }
ee688b00 1224
3713b4e3 1225 nla_nest_end(msg, nl_ifs);
ee688b00 1226
3713b4e3
JB		 1227 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1228 if (!nl_ifs)
1229 return -ENOBUFS;
ee688b00 1230
3713b4e3
JB		 1231 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1232 nl_ftypes = nla_nest_start(msg, ift);
1233 if (!nl_ftypes)
1234 return -ENOBUFS;
1235 i = 0;
1236 stypes = mgmt_stypes[ift].rx;
1237 while (stypes) {
1238 if ((stypes & 1) &&
1239 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1240 (i << 4) | IEEE80211_FTYPE_MGMT))
1241 return -ENOBUFS;
1242 stypes >>= 1;
1243 i++;
1244 }
1245 nla_nest_end(msg, nl_ftypes);
1246 }
1247 nla_nest_end(msg, nl_ifs);
ee688b00 1248
3713b4e3
JB		 1249 return 0;
1250}
ee688b00 1251
86e8cf98
JB		 1252struct nl80211_dump_wiphy_state {
1253 s64 filter_wiphy;
1254 long start;
1255 long split_start, band_start, chan_start;
1256 bool split;
1257};
1258
1b8ec87a 1259static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1260 enum nl80211_commands cmd,
3713b4e3 1261 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1262 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1263{
1264 void *hdr;
1265 struct nlattr *nl_bands, *nl_band;
1266 struct nlattr *nl_freqs, *nl_freq;
1267 struct nlattr *nl_cmds;
1268 enum ieee80211_band band;
1269 struct ieee80211_channel *chan;
1270 int i;
1271 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1272 rdev->wiphy.mgmt_stypes;
fe1abafd 1273 u32 features;
ee688b00 1274
3bb20556 1275 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1276 if (!hdr)
1277 return -ENOBUFS;
ee688b00 1278
86e8cf98
JB		 1279 if (WARN_ON(!state))
1280 return -EINVAL;
ee688b00 1281
1b8ec87a 1282 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1283 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1284 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1285 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1286 cfg80211_rdev_list_generation))
8fdc621d
JB		 1287 goto nla_put_failure;
1288
3bb20556
JB		 1289 if (cmd != NL80211_CMD_NEW_WIPHY)
1290 goto finish;
1291
86e8cf98 1292 switch (state->split_start) {
3713b4e3
JB		 1293 case 0:
1294 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1295 rdev->wiphy.retry_short) ||
3713b4e3 1296 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1297 rdev->wiphy.retry_long) ||
3713b4e3 1298 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1299 rdev->wiphy.frag_threshold) ||
3713b4e3 1300 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1301 rdev->wiphy.rts_threshold) ||
3713b4e3 1302 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1303 rdev->wiphy.coverage_class) ||
3713b4e3 1304 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1305 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1306 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1307 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1308 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1309 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1310 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1311 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1312 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1313 rdev->wiphy.max_match_sets) ||
1314 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1315 rdev->wiphy.max_sched_scan_plans) ||
1316 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1317 rdev->wiphy.max_sched_scan_plan_interval) ||
1318 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1319 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1320 goto nla_put_failure;
3713b4e3 1321
1b8ec87a 1322 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1323 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1324 goto nla_put_failure;
1b8ec87a 1325 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1326 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1327 goto nla_put_failure;
1b8ec87a 1328 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1329 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1330 goto nla_put_failure;
1b8ec87a 1331 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1332 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1333 goto nla_put_failure;
1b8ec87a 1334 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1335 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1336 goto nla_put_failure;
1b8ec87a 1337 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1338 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1339 goto nla_put_failure;
86e8cf98
JB		 1340 state->split_start++;
1341 if (state->split)
3713b4e3
JB		 1342 break;
1343 case 1:
1344 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1345 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1346 rdev->wiphy.cipher_suites))
3713b4e3 1347 goto nla_put_failure;
4745fc09 1348
3713b4e3 1349 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1350 rdev->wiphy.max_num_pmkids))
3713b4e3 1351 goto nla_put_failure;
b23aa676 1352
1b8ec87a 1353 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1354 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1355 goto nla_put_failure;
b23aa676 1356
3713b4e3 1357 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1358 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1359 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1360 rdev->wiphy.available_antennas_rx))
9360ffd1 1361 goto nla_put_failure;
b23aa676 1362
1b8ec87a 1363 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1364 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1365 rdev->wiphy.probe_resp_offload))
3713b4e3 1366 goto nla_put_failure;
8fdc621d 1367
1b8ec87a
ZG		 1368 if ((rdev->wiphy.available_antennas_tx ||
1369 rdev->wiphy.available_antennas_rx) &&
1370 rdev->ops->get_antenna) {
3713b4e3
JB		 1371 u32 tx_ant = 0, rx_ant = 0;
1372 int res;
1b8ec87a 1373 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1374 if (!res) {
1375 if (nla_put_u32(msg,
1376 NL80211_ATTR_WIPHY_ANTENNA_TX,
1377 tx_ant) ||
1378 nla_put_u32(msg,
1379 NL80211_ATTR_WIPHY_ANTENNA_RX,
1380 rx_ant))
1381 goto nla_put_failure;
1382 }
1383 }
a293911d 1384
86e8cf98
JB		 1385 state->split_start++;
1386 if (state->split)
3713b4e3
JB		 1387 break;
1388 case 2:
1389 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1390 rdev->wiphy.interface_modes))
3713b4e3 1391 goto nla_put_failure;
86e8cf98
JB		 1392 state->split_start++;
1393 if (state->split)
3713b4e3
JB		 1394 break;
1395 case 3:
1396 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1397 if (!nl_bands)
1398 goto nla_put_failure;
f7ca38df 1399
86e8cf98
JB		 1400 for (band = state->band_start;
1401 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1402 struct ieee80211_supported_band *sband;
2e161f78 1403
1b8ec87a 1404 sband = rdev->wiphy.bands[band];
2e161f78 1405
3713b4e3
JB		 1406 if (!sband)
1407 continue;
1408
1409 nl_band = nla_nest_start(msg, band);
1410 if (!nl_band)
2e161f78 1411 goto nla_put_failure;
3713b4e3 1412
86e8cf98 1413 switch (state->chan_start) {
3713b4e3
JB		 1414 case 0:
1415 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1416 goto nla_put_failure;
86e8cf98
JB		 1417 state->chan_start++;
1418 if (state->split)
3713b4e3
JB		 1419 break;
1420 default:
1421 /* add frequencies */
1422 nl_freqs = nla_nest_start(
1423 msg, NL80211_BAND_ATTR_FREQS);
1424 if (!nl_freqs)
1425 goto nla_put_failure;
1426
86e8cf98 1427 for (i = state->chan_start - 1;
3713b4e3
JB		 1428 i < sband->n_channels;
1429 i++) {
1430 nl_freq = nla_nest_start(msg, i);
1431 if (!nl_freq)
1432 goto nla_put_failure;
1433
1434 chan = &sband->channels[i];
1435
86e8cf98
JB		 1436 if (nl80211_msg_put_channel(
1437 msg, chan,
1438 state->split))
3713b4e3
JB		 1439 goto nla_put_failure;
1440
1441 nla_nest_end(msg, nl_freq);
86e8cf98 1442 if (state->split)
3713b4e3
JB		 1443 break;
1444 }
1445 if (i < sband->n_channels)
86e8cf98 1446 state->chan_start = i + 2;
3713b4e3 1447 else
86e8cf98 1448 state->chan_start = 0;
3713b4e3
JB		 1449 nla_nest_end(msg, nl_freqs);
1450 }
1451
1452 nla_nest_end(msg, nl_band);
1453
86e8cf98 1454 if (state->split) {
3713b4e3 1455 /* start again here */
86e8cf98 1456 if (state->chan_start)
3713b4e3
JB		 1457 band--;
1458 break;
2e161f78 1459 }
2e161f78 1460 }
3713b4e3 1461 nla_nest_end(msg, nl_bands);
2e161f78 1462
3713b4e3 1463 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1464 state->band_start = band + 1;
3713b4e3 1465 else
86e8cf98 1466 state->band_start = 0;
74b70a4e 1467
3713b4e3 1468 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1469 if (state->band_start == 0 && state->chan_start == 0)
1470 state->split_start++;
1471 if (state->split)
3713b4e3
JB		 1472 break;
1473 case 4:
1474 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1475 if (!nl_cmds)
2e161f78
JB		 1476 goto nla_put_failure;
1477
3713b4e3
JB		 1478 i = 0;
1479#define CMD(op, n) \
1480 do { \
1b8ec87a 1481 if (rdev->ops->op) { \
3713b4e3
JB		 1482 i++; \
1483 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1484 goto nla_put_failure; \
1485 } \
1486 } while (0)
1487
1488 CMD(add_virtual_intf, NEW_INTERFACE);
1489 CMD(change_virtual_intf, SET_INTERFACE);
1490 CMD(add_key, NEW_KEY);
1491 CMD(start_ap, START_AP);
1492 CMD(add_station, NEW_STATION);
1493 CMD(add_mpath, NEW_MPATH);
1494 CMD(update_mesh_config, SET_MESH_CONFIG);
1495 CMD(change_bss, SET_BSS);
1496 CMD(auth, AUTHENTICATE);
1497 CMD(assoc, ASSOCIATE);
1498 CMD(deauth, DEAUTHENTICATE);
1499 CMD(disassoc, DISASSOCIATE);
1500 CMD(join_ibss, JOIN_IBSS);
1501 CMD(join_mesh, JOIN_MESH);
1502 CMD(set_pmksa, SET_PMKSA);
1503 CMD(del_pmksa, DEL_PMKSA);
1504 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1505 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1506 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1507 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1508 CMD(mgmt_tx, FRAME);
1509 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1510 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1511 i++;
1512 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1513 goto nla_put_failure;
2e161f78 1514 }
1b8ec87a
ZG		 1515 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1516 rdev->ops->join_mesh) {
3713b4e3
JB		 1517 i++;
1518 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1519 goto nla_put_failure;
1520 }
1521 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1522 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1523 CMD(tdls_mgmt, TDLS_MGMT);
1524 CMD(tdls_oper, TDLS_OPER);
1525 }
1b8ec87a 1526 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1527 CMD(sched_scan_start, START_SCHED_SCAN);
1528 CMD(probe_client, PROBE_CLIENT);
1529 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1530 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1531 i++;
1532 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1533 goto nla_put_failure;
1534 }
1535 CMD(start_p2p_device, START_P2P_DEVICE);
1536 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1537#ifdef CONFIG_NL80211_TESTMODE
1538 CMD(testmode_cmd, TESTMODE);
1539#endif
86e8cf98 1540 if (state->split) {
5de17984
AS		 1541 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1542 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1543 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1544 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1545 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1546 if (rdev->wiphy.features &
1547 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1548 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1549 }
02df00eb 1550 /* add into the if now */
3713b4e3 1551#undef CMD
ff1b6e69 1552
1b8ec87a 1553 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1554 i++;
1555 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1556 goto nla_put_failure;
ff1b6e69
JB		 1557 }
1558
1b8ec87a 1559 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1560 i++;
1561 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1562 goto nla_put_failure;
1563 }
1564
1565 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1566 state->split_start++;
1567 if (state->split)
3713b4e3
JB		 1568 break;
1569 case 5:
1b8ec87a
ZG		 1570 if (rdev->ops->remain_on_channel &&
1571 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1572 nla_put_u32(msg,
1573 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1574 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1575 goto nla_put_failure;
1576
1b8ec87a 1577 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1578 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1579 goto nla_put_failure;
1580
1581 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1582 goto nla_put_failure;
86e8cf98
JB		 1583 state->split_start++;
1584 if (state->split)
3713b4e3
JB		 1585 break;
1586 case 6:
1587#ifdef CONFIG_PM
1b8ec87a 1588 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1589 goto nla_put_failure;
86e8cf98
JB		 1590 state->split_start++;
1591 if (state->split)
3713b4e3
JB		 1592 break;
1593#else
86e8cf98 1594 state->split_start++;
dfb89c56 1595#endif
3713b4e3
JB		 1596 case 7:
1597 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1598 rdev->wiphy.software_iftypes))
3713b4e3 1599 goto nla_put_failure;
ff1b6e69 1600
1b8ec87a 1601 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1602 state->split))
3713b4e3 1603 goto nla_put_failure;
7527a782 1604
86e8cf98
JB		 1605 state->split_start++;
1606 if (state->split)
3713b4e3
JB		 1607 break;
1608 case 8:
1b8ec87a 1609 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1610 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1611 rdev->wiphy.ap_sme_capa))
3713b4e3 1612 goto nla_put_failure;
7527a782 1613
1b8ec87a 1614 features = rdev->wiphy.features;
fe1abafd
JB		 1615 /*
1616 * We can only add the per-channel limit information if the
1617 * dump is split, otherwise it makes it too big. Therefore
1618 * only advertise it in that case.
1619 */
86e8cf98 1620 if (state->split)
fe1abafd
JB		 1621 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1622 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1623 goto nla_put_failure;
562a7480 1624
1b8ec87a 1625 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1626 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1627 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1628 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1629 goto nla_put_failure;
1f074bd8 1630
1b8ec87a
ZG		 1631 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1632 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1633 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1634 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1635 goto nla_put_failure;
7e7c8926 1636
3713b4e3
JB		 1637 /*
1638 * Any information below this point is only available to
1639 * applications that can deal with it being split. This
1640 * helps ensure that newly added capabilities don't break
1641 * older tools by overrunning their buffers.
1642 *
1643 * We still increment split_start so that in the split
1644 * case we'll continue with more data in the next round,
1645 * but break unconditionally so unsplit data stops here.
1646 */
86e8cf98 1647 state->split_start++;
3713b4e3
JB		 1648 break;
1649 case 9:
1b8ec87a 1650 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1651 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1652 rdev->wiphy.extended_capabilities_len,
1653 rdev->wiphy.extended_capabilities) ||
fe1abafd 1654 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1655 rdev->wiphy.extended_capabilities_len,
1656 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1657 goto nla_put_failure;
a50df0c4 1658
1b8ec87a 1659 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1660 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1661 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1662 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1663 goto nla_put_failure;
1664
be29b99a
AK		 1665 state->split_start++;
1666 break;
1667 case 10:
1b8ec87a 1668 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1669 goto nla_put_failure;
1670
1b8ec87a 1671 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1672 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1673 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1674 goto nla_put_failure;
b43504cf 1675
1b8ec87a 1676 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1677 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1678 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1679 goto nla_put_failure;
1680
ad7e718c
JB		 1681 state->split_start++;
1682 break;
1683 case 11:
1b8ec87a 1684 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1685 const struct nl80211_vendor_cmd_info *info;
1686 struct nlattr *nested;
1687
1688 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1689 if (!nested)
1690 goto nla_put_failure;
1691
1b8ec87a
ZG		 1692 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1693 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1694 if (nla_put(msg, i + 1, sizeof(*info), info))
1695 goto nla_put_failure;
1696 }
1697 nla_nest_end(msg, nested);
1698 }
1699
1b8ec87a 1700 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1701 const struct nl80211_vendor_cmd_info *info;
1702 struct nlattr *nested;
ad7e718c 1703
567ffc35
JB		 1704 nested = nla_nest_start(msg,
1705 NL80211_ATTR_VENDOR_EVENTS);
1706 if (!nested)
ad7e718c 1707 goto nla_put_failure;
567ffc35 1708
1b8ec87a
ZG		 1709 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1710 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1711 if (nla_put(msg, i + 1, sizeof(*info), info))
1712 goto nla_put_failure;
1713 }
1714 nla_nest_end(msg, nested);
1715 }
9a774c78
AO		 1716 state->split_start++;
1717 break;
1718 case 12:
1719 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1720 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1721 rdev->wiphy.max_num_csa_counters))
1722 goto nla_put_failure;
01e0daa4 1723
1bdd716c
AN		 1724 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1725 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1726 goto nla_put_failure;
1727
d75bb06b
GKS		 1728 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1729 sizeof(rdev->wiphy.ext_features),
1730 rdev->wiphy.ext_features))
1731 goto nla_put_failure;
1732
3713b4e3 1733 /* done */
86e8cf98 1734 state->split_start = 0;
3713b4e3
JB		 1735 break;
1736 }
3bb20556 1737 finish:
053c095a
JB		 1738 genlmsg_end(msg, hdr);
1739 return 0;
55682965
JB		 1740
1741 nla_put_failure:
bc3ed28c
TG		 1742 genlmsg_cancel(msg, hdr);
1743 return -EMSGSIZE;
55682965
JB		 1744}
1745
86e8cf98
JB		 1746static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1747 struct netlink_callback *cb,
1748 struct nl80211_dump_wiphy_state *state)
1749{
1750 struct nlattr **tb = nl80211_fam.attrbuf;
1751 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1752 tb, nl80211_fam.maxattr, nl80211_policy);
1753 /* ignore parse errors for backward compatibility */
1754 if (ret)
1755 return 0;
1756
1757 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1758 if (tb[NL80211_ATTR_WIPHY])
1759 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1760 if (tb[NL80211_ATTR_WDEV])
1761 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1762 if (tb[NL80211_ATTR_IFINDEX]) {
1763 struct net_device *netdev;
1764 struct cfg80211_registered_device *rdev;
1765 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1766
7f2b8562 1767 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1768 if (!netdev)
1769 return -ENODEV;
1770 if (netdev->ieee80211_ptr) {
f26cbf40 1771 rdev = wiphy_to_rdev(
86e8cf98
JB		 1772 netdev->ieee80211_ptr->wiphy);
1773 state->filter_wiphy = rdev->wiphy_idx;
1774 }
86e8cf98
JB		 1775 }
1776
1777 return 0;
1778}
1779
55682965
JB		 1780static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1781{
645e77de 1782 int idx = 0, ret;
86e8cf98 1783 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1784 struct cfg80211_registered_device *rdev;
3a5a423b 1785
5fe231e8 1786 rtnl_lock();
86e8cf98
JB		 1787 if (!state) {
1788 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1789 if (!state) {
1790 rtnl_unlock();
86e8cf98 1791 return -ENOMEM;
3713b4e3 1792 }
86e8cf98
JB		 1793 state->filter_wiphy = -1;
1794 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1795 if (ret) {
1796 kfree(state);
1797 rtnl_unlock();
1798 return ret;
3713b4e3 1799 }
86e8cf98 1800 cb->args[0] = (long)state;
3713b4e3
JB		 1801 }
1802
1b8ec87a
ZG		 1803 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1804 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1805 continue;
86e8cf98 1806 if (++idx <= state->start)
55682965 1807 continue;
86e8cf98 1808 if (state->filter_wiphy != -1 &&
1b8ec87a 1809 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1810 continue;
1811 /* attempt to fit multiple wiphy data chunks into the skb */
1812 do {
3bb20556
JB		 1813 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1814 skb,
3713b4e3
JB		 1815 NETLINK_CB(cb->skb).portid,
1816 cb->nlh->nlmsg_seq,
86e8cf98 1817 NLM_F_MULTI, state);
3713b4e3
JB		 1818 if (ret < 0) {
1819 /*
1820 * If sending the wiphy data didn't fit (ENOBUFS
1821 * or EMSGSIZE returned), this SKB is still
1822 * empty (so it's not too big because another
1823 * wiphy dataset is already in the skb) and
1824 * we've not tried to adjust the dump allocation
1825 * yet ... then adjust the alloc size to be
1826 * bigger, and return 1 but with the empty skb.
1827 * This results in an empty message being RX'ed
1828 * in userspace, but that is ignored.
1829 *
1830 * We can then retry with the larger buffer.
1831 */
1832 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1833 !skb->len && !state->split &&
3713b4e3
JB		 1834 cb->min_dump_alloc < 4096) {
1835 cb->min_dump_alloc = 4096;
f12cb289 1836 state->split_start = 0;
d98cae64 1837 rtnl_unlock();
3713b4e3
JB		 1838 return 1;
1839 }
1840 idx--;
1841 break;
645e77de 1842 }
86e8cf98 1843 } while (state->split_start > 0);
3713b4e3 1844 break;
55682965 1845 }
5fe231e8 1846 rtnl_unlock();
55682965 1847
86e8cf98 1848 state->start = idx;
55682965
JB		 1849
1850 return skb->len;
1851}
1852
86e8cf98
JB		 1853static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1854{
1855 kfree((void *)cb->args[0]);
1856 return 0;
1857}
1858
55682965
JB		 1859static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1860{
1861 struct sk_buff *msg;
1b8ec87a 1862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1863 struct nl80211_dump_wiphy_state state = {};
55682965 1864
645e77de 1865 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1866 if (!msg)
4c476991 1867 return -ENOMEM;
55682965 1868
3bb20556
JB		 1869 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1870 info->snd_portid, info->snd_seq, 0,
86e8cf98 1871 &state) < 0) {
4c476991
JB		 1872 nlmsg_free(msg);
1873 return -ENOBUFS;
1874 }
55682965 1875
134e6375 1876 return genlmsg_reply(msg, info);
55682965
JB		 1877}
1878
31888487
JM		 1879static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1880 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1881 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1882 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1883 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1884 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1885};
1886
1887static int parse_txq_params(struct nlattr *tb[],
1888 struct ieee80211_txq_params *txq_params)
1889{
a3304b0a 1890 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1891 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1892 !tb[NL80211_TXQ_ATTR_AIFS])
1893 return -EINVAL;
1894
a3304b0a 1895 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1896 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1897 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1898 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1899 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1900
a3304b0a
JB		 1901 if (txq_params->ac >= NL80211_NUM_ACS)
1902 return -EINVAL;
1903
31888487
JM		 1904 return 0;
1905}
1906
f444de05
JB		 1907static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1908{
1909 /*
cc1d2806
JB		 1910 * You can only set the channel explicitly for WDS interfaces,
1911 * all others have their channel managed via their respective
1912 * "establish a connection" command (connect, join, ...)
1913 *
1914 * For AP/GO and mesh mode, the channel can be set with the
1915 * channel userspace API, but is only stored and passed to the
1916 * low-level driver when the AP starts or the mesh is joined.
1917 * This is for backward compatibility, userspace can also give
1918 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1919 *
1920 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1921 * whatever else is going on, so they have their own special
1922 * operation to set the monitor channel if possible.
f444de05
JB		 1923 */
1924 return !wdev ||
1925 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1926 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1927 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1928 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1929}
1930
683b6d3b
JB		 1931static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1932 struct genl_info *info,
1933 struct cfg80211_chan_def *chandef)
1934{
dbeca2ea 1935 u32 control_freq;
683b6d3b
JB		 1936
1937 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1938 return -EINVAL;
1939
1940 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1941
1942 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1943 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1944 chandef->center_freq1 = control_freq;
1945 chandef->center_freq2 = 0;
683b6d3b
JB		 1946
1947 /* Primary channel not allowed */
1948 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1949 return -EINVAL;
1950
3d9d1d66
JB		 1951 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1952 enum nl80211_channel_type chantype;
1953
1954 chantype = nla_get_u32(
1955 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1956
1957 switch (chantype) {
1958 case NL80211_CHAN_NO_HT:
1959 case NL80211_CHAN_HT20:
1960 case NL80211_CHAN_HT40PLUS:
1961 case NL80211_CHAN_HT40MINUS:
1962 cfg80211_chandef_create(chandef, chandef->chan,
1963 chantype);
1964 break;
1965 default:
1966 return -EINVAL;
1967 }
1968 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1969 chandef->width =
1970 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1971 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1972 chandef->center_freq1 =
1973 nla_get_u32(
1974 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1975 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1976 chandef->center_freq2 =
1977 nla_get_u32(
1978 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1979 }
1980
9f5e8f6e 1981 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1982 return -EINVAL;
1983
9f5e8f6e
JB		 1984 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1985 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1986 return -EINVAL;
1987
2f301ab2
SW		 1988 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1989 chandef->width == NL80211_CHAN_WIDTH_10) &&
1990 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1991 return -EINVAL;
1992
683b6d3b
JB		 1993 return 0;
1994}
1995
f444de05 1996static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1997 struct net_device *dev,
f444de05
JB		 1998 struct genl_info *info)
1999{
683b6d3b 2000 struct cfg80211_chan_def chandef;
f444de05 2001 int result;
e8c9bd5b 2002 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2003 struct wireless_dev *wdev = NULL;
e8c9bd5b 2004
e16821bc
JM		 2005 if (dev)
2006 wdev = dev->ieee80211_ptr;
f444de05
JB		 2007 if (!nl80211_can_set_dev_channel(wdev))
2008 return -EOPNOTSUPP;
e16821bc
JM		 2009 if (wdev)
2010 iftype = wdev->iftype;
f444de05 2011
683b6d3b
JB		 2012 result = nl80211_parse_chandef(rdev, info, &chandef);
2013 if (result)
2014 return result;
f444de05 2015
e8c9bd5b 2016 switch (iftype) {
aa430da4
JB		 2017 case NL80211_IFTYPE_AP:
2018 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2019 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2020 iftype)) {
aa430da4
JB		 2021 result = -EINVAL;
2022 break;
2023 }
e16821bc
JM		 2024 if (wdev->beacon_interval) {
2025 if (!dev || !rdev->ops->set_ap_chanwidth ||
2026 !(rdev->wiphy.features &
2027 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2028 result = -EBUSY;
2029 break;
2030 }
2031
2032 /* Only allow dynamic channel width changes */
2033 if (chandef.chan != wdev->preset_chandef.chan) {
2034 result = -EBUSY;
2035 break;
2036 }
2037 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2038 if (result)
2039 break;
2040 }
683b6d3b 2041 wdev->preset_chandef = chandef;
aa430da4
JB		 2042 result = 0;
2043 break;
cc1d2806 2044 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2045 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2046 break;
e8c9bd5b 2047 case NL80211_IFTYPE_MONITOR:
683b6d3b 2048 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2049 break;
aa430da4 2050 default:
e8c9bd5b 2051 result = -EINVAL;
f444de05 2052 }
f444de05
JB		 2053
2054 return result;
2055}
2056
2057static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2058{
4c476991
JB		 2059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2060 struct net_device *netdev = info->user_ptr[1];
f444de05 2061
e16821bc 2062 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2063}
2064
e8347eba
BJ		 2065static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2066{
43b19952
JB		 2067 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2068 struct net_device *dev = info->user_ptr[1];
2069 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2070 const u8 *bssid;
e8347eba
BJ		 2071
2072 if (!info->attrs[NL80211_ATTR_MAC])
2073 return -EINVAL;
2074
43b19952
JB		 2075 if (netif_running(dev))
2076 return -EBUSY;
e8347eba 2077
43b19952
JB		 2078 if (!rdev->ops->set_wds_peer)
2079 return -EOPNOTSUPP;
e8347eba 2080
43b19952
JB		 2081 if (wdev->iftype != NL80211_IFTYPE_WDS)
2082 return -EOPNOTSUPP;
e8347eba
BJ		 2083
2084 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2085 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2086}
2087
2088
55682965
JB		 2089static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2090{
2091 struct cfg80211_registered_device *rdev;
f444de05
JB		 2092 struct net_device *netdev = NULL;
2093 struct wireless_dev *wdev;
a1e567c8 2094 int result = 0, rem_txq_params = 0;
31888487 2095 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2096 u32 changed;
2097 u8 retry_short = 0, retry_long = 0;
2098 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2099 u8 coverage_class = 0;
55682965 2100
5fe231e8
JB		 2101 ASSERT_RTNL();
2102
f444de05
JB		 2103 /*
2104 * Try to find the wiphy and netdev. Normally this
2105 * function shouldn't need the netdev, but this is
2106 * done for backward compatibility -- previously
2107 * setting the channel was done per wiphy, but now
2108 * it is per netdev. Previous userland like hostapd
2109 * also passed a netdev to set_wiphy, so that it is
2110 * possible to let that go to the right netdev!
2111 */
4bbf4d56 2112
f444de05
JB		 2113 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2114 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2115
7f2b8562 2116 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2117 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2118 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2119 else
f444de05 2120 netdev = NULL;
4bbf4d56
JB		 2121 }
2122
f444de05 2123 if (!netdev) {
878d9ec7
JB		 2124 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2125 info->attrs);
5fe231e8 2126 if (IS_ERR(rdev))
4c476991 2127 return PTR_ERR(rdev);
f444de05
JB		 2128 wdev = NULL;
2129 netdev = NULL;
2130 result = 0;
71fe96bf 2131 } else
f444de05 2132 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2133
2134 /*
2135 * end workaround code, by now the rdev is available
2136 * and locked, and wdev may or may not be NULL.
2137 */
4bbf4d56
JB		 2138
2139 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2140 result = cfg80211_dev_rename(
2141 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2142
4bbf4d56 2143 if (result)
7f2b8562 2144 return result;
31888487
JM		 2145
2146 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2147 struct ieee80211_txq_params txq_params;
2148 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2149
7f2b8562
YX		 2150 if (!rdev->ops->set_txq_params)
2151 return -EOPNOTSUPP;
31888487 2152
7f2b8562
YX		 2153 if (!netdev)
2154 return -EINVAL;
f70f01c2 2155
133a3ff2 2156 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2157 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2158 return -EINVAL;
133a3ff2 2159
7f2b8562
YX		 2160 if (!netif_running(netdev))
2161 return -ENETDOWN;
2b5f8b0b 2162
31888487
JM		 2163 nla_for_each_nested(nl_txq_params,
2164 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2165 rem_txq_params) {
ae811e21
JB		 2166 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2167 nla_data(nl_txq_params),
2168 nla_len(nl_txq_params),
2169 txq_params_policy);
2170 if (result)
2171 return result;
31888487
JM		 2172 result = parse_txq_params(tb, &txq_params);
2173 if (result)
7f2b8562 2174 return result;
31888487 2175
e35e4d28
HG		 2176 result = rdev_set_txq_params(rdev, netdev,
2177 &txq_params);
31888487 2178 if (result)
7f2b8562 2179 return result;
31888487
JM		 2180 }
2181 }
55682965 2182
72bdcf34 2183 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2184 result = __nl80211_set_channel(
2185 rdev,
2186 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2187 info);
72bdcf34 2188 if (result)
7f2b8562 2189 return result;
72bdcf34
JM		 2190 }
2191
98d2ff8b 2192 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2193 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2194 enum nl80211_tx_power_setting type;
2195 int idx, mbm = 0;
2196
c8442118
JB		 2197 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2198 txp_wdev = NULL;
2199
7f2b8562
YX		 2200 if (!rdev->ops->set_tx_power)
2201 return -EOPNOTSUPP;
98d2ff8b
JO		 2202
2203 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2204 type = nla_get_u32(info->attrs[idx]);
2205
2206 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2207 (type != NL80211_TX_POWER_AUTOMATIC))
2208 return -EINVAL;
98d2ff8b
JO		 2209
2210 if (type != NL80211_TX_POWER_AUTOMATIC) {
2211 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2212 mbm = nla_get_u32(info->attrs[idx]);
2213 }
2214
c8442118 2215 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2216 if (result)
7f2b8562 2217 return result;
98d2ff8b
JO		 2218 }
2219
afe0cbf8
BR		 2220 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2221 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2222 u32 tx_ant, rx_ant;
7f531e03
BR		 2223 if ((!rdev->wiphy.available_antennas_tx &&
2224 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2225 !rdev->ops->set_antenna)
2226 return -EOPNOTSUPP;
afe0cbf8
BR		 2227
2228 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2229 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2230
a7ffac95 2231 /* reject antenna configurations which don't match the
7f531e03
BR		 2232 * available antenna masks, except for the "all" mask */
2233 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2234 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2235 return -EINVAL;
a7ffac95 2236
7f531e03
BR		 2237 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2238 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2239
e35e4d28 2240 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2241 if (result)
7f2b8562 2242 return result;
afe0cbf8
BR		 2243 }
2244
b9a5f8ca
JM		 2245 changed = 0;
2246
2247 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2248 retry_short = nla_get_u8(
2249 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2250 if (retry_short == 0)
2251 return -EINVAL;
2252
b9a5f8ca
JM		 2253 changed |= WIPHY_PARAM_RETRY_SHORT;
2254 }
2255
2256 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2257 retry_long = nla_get_u8(
2258 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2259 if (retry_long == 0)
2260 return -EINVAL;
2261
b9a5f8ca
JM		 2262 changed |= WIPHY_PARAM_RETRY_LONG;
2263 }
2264
2265 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2266 frag_threshold = nla_get_u32(
2267 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2268 if (frag_threshold < 256)
2269 return -EINVAL;
2270
b9a5f8ca
JM		 2271 if (frag_threshold != (u32) -1) {
2272 /*
2273 * Fragments (apart from the last one) are required to
2274 * have even length. Make the fragmentation code
2275 * simpler by stripping LSB should someone try to use
2276 * odd threshold value.
2277 */
2278 frag_threshold &= ~0x1;
2279 }
2280 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2281 }
2282
2283 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2284 rts_threshold = nla_get_u32(
2285 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2286 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2287 }
2288
81077e82 2289 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2290 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2291 return -EINVAL;
2292
81077e82
LT		 2293 coverage_class = nla_get_u8(
2294 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2295 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2296 }
2297
3057dbfd
LB		 2298 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2299 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2300 return -EOPNOTSUPP;
2301
2302 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2303 }
2304
b9a5f8ca
JM		 2305 if (changed) {
2306 u8 old_retry_short, old_retry_long;
2307 u32 old_frag_threshold, old_rts_threshold;
81077e82 2308 u8 old_coverage_class;
b9a5f8ca 2309
7f2b8562
YX		 2310 if (!rdev->ops->set_wiphy_params)
2311 return -EOPNOTSUPP;
b9a5f8ca
JM		 2312
2313 old_retry_short = rdev->wiphy.retry_short;
2314 old_retry_long = rdev->wiphy.retry_long;
2315 old_frag_threshold = rdev->wiphy.frag_threshold;
2316 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2317 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2318
2319 if (changed & WIPHY_PARAM_RETRY_SHORT)
2320 rdev->wiphy.retry_short = retry_short;
2321 if (changed & WIPHY_PARAM_RETRY_LONG)
2322 rdev->wiphy.retry_long = retry_long;
2323 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2324 rdev->wiphy.frag_threshold = frag_threshold;
2325 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2326 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2327 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2328 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2329
e35e4d28 2330 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2331 if (result) {
2332 rdev->wiphy.retry_short = old_retry_short;
2333 rdev->wiphy.retry_long = old_retry_long;
2334 rdev->wiphy.frag_threshold = old_frag_threshold;
2335 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2336 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2337 return result;
b9a5f8ca
JM		 2338 }
2339 }
7f2b8562 2340 return 0;
55682965
JB		 2341}
2342
71bbc994
JB		 2343static inline u64 wdev_id(struct wireless_dev *wdev)
2344{
2345 return (u64)wdev->identifier |
f26cbf40 2346 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2347}
55682965 2348
683b6d3b 2349static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2350 const struct cfg80211_chan_def *chandef)
683b6d3b 2351{
601555cd
JB		 2352 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2353 return -EINVAL;
3d9d1d66 2354
683b6d3b
JB		 2355 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2356 chandef->chan->center_freq))
2357 return -ENOBUFS;
3d9d1d66
JB		 2358 switch (chandef->width) {
2359 case NL80211_CHAN_WIDTH_20_NOHT:
2360 case NL80211_CHAN_WIDTH_20:
2361 case NL80211_CHAN_WIDTH_40:
2362 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2363 cfg80211_get_chandef_type(chandef)))
2364 return -ENOBUFS;
2365 break;
2366 default:
2367 break;
2368 }
2369 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2370 return -ENOBUFS;
2371 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2372 return -ENOBUFS;
2373 if (chandef->center_freq2 &&
2374 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2375 return -ENOBUFS;
2376 return 0;
2377}
2378
15e47304 2379static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2380 struct cfg80211_registered_device *rdev,
8f894be2 2381 struct wireless_dev *wdev, bool removal)
55682965 2382{
72fb2abc 2383 struct net_device *dev = wdev->netdev;
8f894be2 2384 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2385 void *hdr;
2386
8f894be2
TB		 2387 if (removal)
2388 cmd = NL80211_CMD_DEL_INTERFACE;
2389
2390 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2391 if (!hdr)
2392 return -1;
2393
72fb2abc
JB		 2394 if (dev &&
2395 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2396 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2397 goto nla_put_failure;
2398
2399 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2400 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2401 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2402 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2403 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2404 rdev->devlist_generation ^
2405 (cfg80211_rdev_list_generation << 2)))
2406 goto nla_put_failure;
f5ea9120 2407
5b7ccaf3 2408 if (rdev->ops->get_channel) {
683b6d3b
JB		 2409 int ret;
2410 struct cfg80211_chan_def chandef;
2411
2412 ret = rdev_get_channel(rdev, wdev, &chandef);
2413 if (ret == 0) {
2414 if (nl80211_send_chandef(msg, &chandef))
2415 goto nla_put_failure;
2416 }
d91df0e3
PF		 2417 }
2418
d55d0d59
RM		 2419 if (rdev->ops->get_tx_power) {
2420 int dbm, ret;
2421
2422 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2423 if (ret == 0 &&
2424 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2425 DBM_TO_MBM(dbm)))
2426 goto nla_put_failure;
2427 }
2428
b84e7a05
AQ		 2429 if (wdev->ssid_len) {
2430 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2431 goto nla_put_failure;
2432 }
2433
053c095a
JB		 2434 genlmsg_end(msg, hdr);
2435 return 0;
55682965
JB		 2436
2437 nla_put_failure:
bc3ed28c
TG		 2438 genlmsg_cancel(msg, hdr);
2439 return -EMSGSIZE;
55682965
JB		 2440}
2441
2442static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2443{
2444 int wp_idx = 0;
2445 int if_idx = 0;
2446 int wp_start = cb->args[0];
2447 int if_start = cb->args[1];
f5ea9120 2448 struct cfg80211_registered_device *rdev;
55682965
JB		 2449 struct wireless_dev *wdev;
2450
5fe231e8 2451 rtnl_lock();
f5ea9120
JB		 2452 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2453 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2454 continue;
bba95fef
JB		 2455 if (wp_idx < wp_start) {
2456 wp_idx++;
55682965 2457 continue;
bba95fef 2458 }
55682965
JB		 2459 if_idx = 0;
2460
89a54e48 2461 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2462 if (if_idx < if_start) {
2463 if_idx++;
55682965 2464 continue;
bba95fef 2465 }
15e47304 2466 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2467 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2468 rdev, wdev, false) < 0) {
bba95fef
JB		 2469 goto out;
2470 }
2471 if_idx++;
55682965 2472 }
bba95fef
JB		 2473
2474 wp_idx++;
55682965 2475 }
bba95fef 2476 out:
5fe231e8 2477 rtnl_unlock();
55682965
JB		 2478
2479 cb->args[0] = wp_idx;
2480 cb->args[1] = if_idx;
2481
2482 return skb->len;
2483}
2484
2485static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2486{
2487 struct sk_buff *msg;
1b8ec87a 2488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2489 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2490
fd2120ca 2491 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2492 if (!msg)
4c476991 2493 return -ENOMEM;
55682965 2494
15e47304 2495 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2496 rdev, wdev, false) < 0) {
4c476991
JB		 2497 nlmsg_free(msg);
2498 return -ENOBUFS;
2499 }
55682965 2500
134e6375 2501 return genlmsg_reply(msg, info);
55682965
JB		 2502}
2503
66f7ac50
MW		 2504static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2505 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2506 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2507 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2508 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2509 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2510 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2511};
2512
2513static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2514{
2515 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2516 int flag;
2517
2518 *mntrflags = 0;
2519
2520 if (!nla)
2521 return -EINVAL;
2522
2523 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2524 nla, mntr_flags_policy))
2525 return -EINVAL;
2526
2527 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2528 if (flags[flag])
2529 *mntrflags |= (1<<flag);
2530
2531 return 0;
2532}
2533
9bc383de 2534static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2535 struct net_device *netdev, u8 use_4addr,
2536 enum nl80211_iftype iftype)
9bc383de 2537{
ad4bb6f8 2538 if (!use_4addr) {
f350a0a8 2539 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2540 return -EBUSY;
9bc383de 2541 return 0;
ad4bb6f8 2542 }
9bc383de
JB		 2543
2544 switch (iftype) {
2545 case NL80211_IFTYPE_AP_VLAN:
2546 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2547 return 0;
2548 break;
2549 case NL80211_IFTYPE_STATION:
2550 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2551 return 0;
2552 break;
2553 default:
2554 break;
2555 }
2556
2557 return -EOPNOTSUPP;
2558}
2559
55682965
JB		 2560static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2561{
4c476991 2562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2563 struct vif_params params;
e36d56b6 2564 int err;
04a773ad 2565 enum nl80211_iftype otype, ntype;
4c476991 2566 struct net_device *dev = info->user_ptr[1];
92ffe055 2567 u32 _flags, *flags = NULL;
ac7f9cfa 2568 bool change = false;
55682965 2569
2ec600d6
LCC		 2570 memset(&params, 0, sizeof(params));
2571
04a773ad 2572 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2573
723b038d 2574 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2575 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2576 if (otype != ntype)
ac7f9cfa 2577 change = true;
4c476991
JB		 2578 if (ntype > NL80211_IFTYPE_MAX)
2579 return -EINVAL;
723b038d
JB		 2580 }
2581
92ffe055 2582 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2583 struct wireless_dev *wdev = dev->ieee80211_ptr;
2584
4c476991
JB		 2585 if (ntype != NL80211_IFTYPE_MESH_POINT)
2586 return -EINVAL;
29cbe68c
JB		 2587 if (netif_running(dev))
2588 return -EBUSY;
2589
2590 wdev_lock(wdev);
2591 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2592 IEEE80211_MAX_MESH_ID_LEN);
2593 wdev->mesh_id_up_len =
2594 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2595 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2596 wdev->mesh_id_up_len);
2597 wdev_unlock(wdev);
2ec600d6
LCC		 2598 }
2599
8b787643
FF		 2600 if (info->attrs[NL80211_ATTR_4ADDR]) {
2601 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2602 change = true;
ad4bb6f8 2603 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2604 if (err)
4c476991 2605 return err;
8b787643
FF		 2606 } else {
2607 params.use_4addr = -1;
2608 }
2609
92ffe055 2610 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2611 if (ntype != NL80211_IFTYPE_MONITOR)
2612 return -EINVAL;
92ffe055
JB		 2613 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2614 &_flags);
ac7f9cfa 2615 if (err)
4c476991 2616 return err;
ac7f9cfa
JB		 2617
2618 flags = &_flags;
2619 change = true;
92ffe055 2620 }
3b85875a 2621
18003297 2622 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2623 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2624 return -EOPNOTSUPP;
2625
ac7f9cfa 2626 if (change)
3d54d255 2627 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2628 else
2629 err = 0;
60719ffd 2630
9bc383de
JB		 2631 if (!err && params.use_4addr != -1)
2632 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2633
55682965
JB		 2634 return err;
2635}
2636
2637static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2638{
4c476991 2639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2640 struct vif_params params;
84efbb84 2641 struct wireless_dev *wdev;
8f894be2 2642 struct sk_buff *msg, *event;
55682965
JB		 2643 int err;
2644 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2645 u32 flags;
55682965 2646
78f22b6a
JB		 2647 /* to avoid failing a new interface creation due to pending removal */
2648 cfg80211_destroy_ifaces(rdev);
2649
2ec600d6
LCC		 2650 memset(&params, 0, sizeof(params));
2651
55682965
JB		 2652 if (!info->attrs[NL80211_ATTR_IFNAME])
2653 return -EINVAL;
2654
2655 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2656 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2657 if (type > NL80211_IFTYPE_MAX)
2658 return -EINVAL;
2659 }
2660
79c97e97 2661 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2662 !(rdev->wiphy.interface_modes & (1 << type)))
2663 return -EOPNOTSUPP;
55682965 2664
e8f479b1
BG		 2665 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2666 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2667 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2668 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2669 ETH_ALEN);
2670 if (!is_valid_ether_addr(params.macaddr))
2671 return -EADDRNOTAVAIL;
2672 }
2673
9bc383de 2674 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2675 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2676 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2677 if (err)
4c476991 2678 return err;
9bc383de 2679 }
8b787643 2680
66f7ac50
MW		 2681 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2682 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2683 &flags);
e057d3c3 2684
18003297 2685 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2686 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2687 return -EOPNOTSUPP;
2688
a18c7192
JB		 2689 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2690 if (!msg)
2691 return -ENOMEM;
2692
e35e4d28
HG		 2693 wdev = rdev_add_virtual_intf(rdev,
2694 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2695 NET_NAME_USER, type, err ? NULL : &flags,
2696 &params);
d687cbb7
RM		 2697 if (WARN_ON(!wdev)) {
2698 nlmsg_free(msg);
2699 return -EPROTO;
2700 } else if (IS_ERR(wdev)) {
1c90f9d4 2701 nlmsg_free(msg);
84efbb84 2702 return PTR_ERR(wdev);
1c90f9d4 2703 }
2ec600d6 2704
18e5ca65 2705 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2706 wdev->owner_nlportid = info->snd_portid;
2707
98104fde
JB		 2708 switch (type) {
2709 case NL80211_IFTYPE_MESH_POINT:
2710 if (!info->attrs[NL80211_ATTR_MESH_ID])
2711 break;
29cbe68c
JB		 2712 wdev_lock(wdev);
2713 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2714 IEEE80211_MAX_MESH_ID_LEN);
2715 wdev->mesh_id_up_len =
2716 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2717 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2718 wdev->mesh_id_up_len);
2719 wdev_unlock(wdev);
98104fde
JB		 2720 break;
2721 case NL80211_IFTYPE_P2P_DEVICE:
2722 /*
2723 * P2P Device doesn't have a netdev, so doesn't go
2724 * through the netdev notifier and must be added here
2725 */
2726 mutex_init(&wdev->mtx);
2727 INIT_LIST_HEAD(&wdev->event_list);
2728 spin_lock_init(&wdev->event_lock);
2729 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2730 spin_lock_init(&wdev->mgmt_registrations_lock);
2731
98104fde
JB		 2732 wdev->identifier = ++rdev->wdev_id;
2733 list_add_rcu(&wdev->list, &rdev->wdev_list);
2734 rdev->devlist_generation++;
98104fde
JB		 2735 break;
2736 default:
2737 break;
29cbe68c
JB		 2738 }
2739
15e47304 2740 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2741 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2742 nlmsg_free(msg);
2743 return -ENOBUFS;
2744 }
2745
8f894be2
TB		 2746 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2747 if (event) {
2748 if (nl80211_send_iface(event, 0, 0, 0,
2749 rdev, wdev, false) < 0) {
2750 nlmsg_free(event);
2751 goto out;
2752 }
2753
2754 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2755 event, 0, NL80211_MCGRP_CONFIG,
2756 GFP_KERNEL);
2757 }
2758
2759out:
1c90f9d4 2760 return genlmsg_reply(msg, info);
55682965
JB		 2761}
2762
2763static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2764{
4c476991 2765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2766 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2767 struct sk_buff *msg;
2768 int status;
55682965 2769
4c476991
JB		 2770 if (!rdev->ops->del_virtual_intf)
2771 return -EOPNOTSUPP;
55682965 2772
8f894be2
TB		 2773 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2774 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2775 nlmsg_free(msg);
2776 msg = NULL;
2777 }
2778
84efbb84
JB		 2779 /*
2780 * If we remove a wireless device without a netdev then clear
2781 * user_ptr[1] so that nl80211_post_doit won't dereference it
2782 * to check if it needs to do dev_put(). Otherwise it crashes
2783 * since the wdev has been freed, unlike with a netdev where
2784 * we need the dev_put() for the netdev to really be freed.
2785 */
2786 if (!wdev->netdev)
2787 info->user_ptr[1] = NULL;
2788
8f894be2
TB		 2789 status = rdev_del_virtual_intf(rdev, wdev);
2790 if (status >= 0 && msg)
2791 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2792 msg, 0, NL80211_MCGRP_CONFIG,
2793 GFP_KERNEL);
2794 else
2795 nlmsg_free(msg);
2796
2797 return status;
55682965
JB		 2798}
2799
1d9d9213
SW		 2800static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2801{
2802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2803 struct net_device *dev = info->user_ptr[1];
2804 u16 noack_map;
2805
2806 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2807 return -EINVAL;
2808
2809 if (!rdev->ops->set_noack_map)
2810 return -EOPNOTSUPP;
2811
2812 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2813
e35e4d28 2814 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2815}
2816
41ade00f
JB		 2817struct get_key_cookie {
2818 struct sk_buff *msg;
2819 int error;
b9454e83 2820 int idx;
41ade00f
JB		 2821};
2822
2823static void get_key_callback(void *c, struct key_params *params)
2824{
b9454e83 2825 struct nlattr *key;
41ade00f
JB		 2826 struct get_key_cookie *cookie = c;
2827
9360ffd1
DM		 2828 if ((params->key &&
2829 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2830 params->key_len, params->key)) ||
2831 (params->seq &&
2832 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2833 params->seq_len, params->seq)) ||
2834 (params->cipher &&
2835 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2836 params->cipher)))
2837 goto nla_put_failure;
41ade00f 2838
b9454e83
JB		 2839 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2840 if (!key)
2841 goto nla_put_failure;
2842
9360ffd1
DM		 2843 if ((params->key &&
2844 nla_put(cookie->msg, NL80211_KEY_DATA,
2845 params->key_len, params->key)) ||
2846 (params->seq &&
2847 nla_put(cookie->msg, NL80211_KEY_SEQ,
2848 params->seq_len, params->seq)) ||
2849 (params->cipher &&
2850 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2851 params->cipher)))
2852 goto nla_put_failure;
b9454e83 2853
9360ffd1
DM		 2854 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2855 goto nla_put_failure;
b9454e83
JB		 2856
2857 nla_nest_end(cookie->msg, key);
2858
41ade00f
JB		 2859 return;
2860 nla_put_failure:
2861 cookie->error = 1;
2862}
2863
2864static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2865{
4c476991 2866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2867 int err;
4c476991 2868 struct net_device *dev = info->user_ptr[1];
41ade00f 2869 u8 key_idx = 0;
e31b8213
JB		 2870 const u8 *mac_addr = NULL;
2871 bool pairwise;
41ade00f
JB		 2872 struct get_key_cookie cookie = {
2873 .error = 0,
2874 };
2875 void *hdr;
2876 struct sk_buff *msg;
2877
2878 if (info->attrs[NL80211_ATTR_KEY_IDX])
2879 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2880
3cfcf6ac 2881 if (key_idx > 5)
41ade00f
JB		 2882 return -EINVAL;
2883
2884 if (info->attrs[NL80211_ATTR_MAC])
2885 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2886
e31b8213
JB		 2887 pairwise = !!mac_addr;
2888 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2889 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2890 if (kt >= NUM_NL80211_KEYTYPES)
2891 return -EINVAL;
2892 if (kt != NL80211_KEYTYPE_GROUP &&
2893 kt != NL80211_KEYTYPE_PAIRWISE)
2894 return -EINVAL;
2895 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2896 }
2897
4c476991
JB		 2898 if (!rdev->ops->get_key)
2899 return -EOPNOTSUPP;
41ade00f 2900
0fa7b391
JB		 2901 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2902 return -ENOENT;
2903
fd2120ca 2904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2905 if (!msg)
2906 return -ENOMEM;
41ade00f 2907
15e47304 2908 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2909 NL80211_CMD_NEW_KEY);
cb35fba3 2910 if (!hdr)
9fe271af 2911 goto nla_put_failure;
41ade00f
JB		 2912
2913 cookie.msg = msg;
b9454e83 2914 cookie.idx = key_idx;
41ade00f 2915
9360ffd1
DM		 2916 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2917 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2918 goto nla_put_failure;
2919 if (mac_addr &&
2920 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2921 goto nla_put_failure;
41ade00f 2922
e35e4d28
HG		 2923 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2924 get_key_callback);
41ade00f
JB		 2925
2926 if (err)
6c95e2a2 2927 goto free_msg;
41ade00f
JB		 2928
2929 if (cookie.error)
2930 goto nla_put_failure;
2931
2932 genlmsg_end(msg, hdr);
4c476991 2933 return genlmsg_reply(msg, info);
41ade00f
JB		 2934
2935 nla_put_failure:
2936 err = -ENOBUFS;
6c95e2a2 2937 free_msg:
41ade00f 2938 nlmsg_free(msg);
41ade00f
JB		 2939 return err;
2940}
2941
2942static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2943{
4c476991 2944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2945 struct key_parse key;
41ade00f 2946 int err;
4c476991 2947 struct net_device *dev = info->user_ptr[1];
41ade00f 2948
b9454e83
JB		 2949 err = nl80211_parse_key(info, &key);
2950 if (err)
2951 return err;
41ade00f 2952
b9454e83 2953 if (key.idx < 0)
41ade00f
JB		 2954 return -EINVAL;
2955
b9454e83
JB		 2956 /* only support setting default key */
2957 if (!key.def && !key.defmgmt)
41ade00f
JB		 2958 return -EINVAL;
2959
dbd2fd65 2960 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2961
dbd2fd65
JB		 2962 if (key.def) {
2963 if (!rdev->ops->set_default_key) {
2964 err = -EOPNOTSUPP;
2965 goto out;
2966 }
41ade00f 2967
dbd2fd65
JB		 2968 err = nl80211_key_allowed(dev->ieee80211_ptr);
2969 if (err)
2970 goto out;
2971
e35e4d28 2972 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2973 key.def_uni, key.def_multi);
2974
2975 if (err)
2976 goto out;
fffd0934 2977
3d23e349 2978#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2979 dev->ieee80211_ptr->wext.default_key = key.idx;
2980#endif
2981 } else {
2982 if (key.def_uni || !key.def_multi) {
2983 err = -EINVAL;
2984 goto out;
2985 }
2986
2987 if (!rdev->ops->set_default_mgmt_key) {
2988 err = -EOPNOTSUPP;
2989 goto out;
2990 }
2991
2992 err = nl80211_key_allowed(dev->ieee80211_ptr);
2993 if (err)
2994 goto out;
2995
e35e4d28 2996 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2997 if (err)
2998 goto out;
2999
3000#ifdef CONFIG_CFG80211_WEXT
3001 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3002#endif
dbd2fd65
JB		 3003 }
3004
3005 out:
fffd0934 3006 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3007
41ade00f
JB		 3008 return err;
3009}
3010
3011static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3012{
4c476991 3013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3014 int err;
4c476991 3015 struct net_device *dev = info->user_ptr[1];
b9454e83 3016 struct key_parse key;
e31b8213 3017 const u8 *mac_addr = NULL;
41ade00f 3018
b9454e83
JB		 3019 err = nl80211_parse_key(info, &key);
3020 if (err)
3021 return err;
41ade00f 3022
b9454e83 3023 if (!key.p.key)
41ade00f
JB		 3024 return -EINVAL;
3025
41ade00f
JB		 3026 if (info->attrs[NL80211_ATTR_MAC])
3027 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3028
e31b8213
JB		 3029 if (key.type == -1) {
3030 if (mac_addr)
3031 key.type = NL80211_KEYTYPE_PAIRWISE;
3032 else
3033 key.type = NL80211_KEYTYPE_GROUP;
3034 }
3035
3036 /* for now */
3037 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3038 key.type != NL80211_KEYTYPE_GROUP)
3039 return -EINVAL;
3040
4c476991
JB		 3041 if (!rdev->ops->add_key)
3042 return -EOPNOTSUPP;
25e47c18 3043
e31b8213
JB		 3044 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3045 key.type == NL80211_KEYTYPE_PAIRWISE,
3046 mac_addr))
4c476991 3047 return -EINVAL;
41ade00f 3048
fffd0934
JB		 3049 wdev_lock(dev->ieee80211_ptr);
3050 err = nl80211_key_allowed(dev->ieee80211_ptr);
3051 if (!err)
e35e4d28
HG		 3052 err = rdev_add_key(rdev, dev, key.idx,
3053 key.type == NL80211_KEYTYPE_PAIRWISE,
3054 mac_addr, &key.p);
fffd0934 3055 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3056
41ade00f
JB		 3057 return err;
3058}
3059
3060static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3061{
4c476991 3062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3063 int err;
4c476991 3064 struct net_device *dev = info->user_ptr[1];
41ade00f 3065 u8 *mac_addr = NULL;
b9454e83 3066 struct key_parse key;
41ade00f 3067
b9454e83
JB		 3068 err = nl80211_parse_key(info, &key);
3069 if (err)
3070 return err;
41ade00f
JB		 3071
3072 if (info->attrs[NL80211_ATTR_MAC])
3073 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3074
e31b8213
JB		 3075 if (key.type == -1) {
3076 if (mac_addr)
3077 key.type = NL80211_KEYTYPE_PAIRWISE;
3078 else
3079 key.type = NL80211_KEYTYPE_GROUP;
3080 }
3081
3082 /* for now */
3083 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3084 key.type != NL80211_KEYTYPE_GROUP)
3085 return -EINVAL;
3086
4c476991
JB		 3087 if (!rdev->ops->del_key)
3088 return -EOPNOTSUPP;
41ade00f 3089
fffd0934
JB		 3090 wdev_lock(dev->ieee80211_ptr);
3091 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3092
0fa7b391 3093 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3094 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3095 err = -ENOENT;
3096
fffd0934 3097 if (!err)
e35e4d28
HG		 3098 err = rdev_del_key(rdev, dev, key.idx,
3099 key.type == NL80211_KEYTYPE_PAIRWISE,
3100 mac_addr);
41ade00f 3101
3d23e349 3102#ifdef CONFIG_CFG80211_WEXT
08645126 3103 if (!err) {
b9454e83 3104 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3105 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3106 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3107 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3108 }
3109#endif
fffd0934 3110 wdev_unlock(dev->ieee80211_ptr);
08645126 3111
41ade00f
JB		 3112 return err;
3113}
3114
77765eaf
VT		 3115/* This function returns an error or the number of nested attributes */
3116static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3117{
3118 struct nlattr *attr;
3119 int n_entries = 0, tmp;
3120
3121 nla_for_each_nested(attr, nl_attr, tmp) {
3122 if (nla_len(attr) != ETH_ALEN)
3123 return -EINVAL;
3124
3125 n_entries++;
3126 }
3127
3128 return n_entries;
3129}
3130
3131/*
3132 * This function parses ACL information and allocates memory for ACL data.
3133 * On successful return, the calling function is responsible to free the
3134 * ACL buffer returned by this function.
3135 */
3136static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3137 struct genl_info *info)
3138{
3139 enum nl80211_acl_policy acl_policy;
3140 struct nlattr *attr;
3141 struct cfg80211_acl_data *acl;
3142 int i = 0, n_entries, tmp;
3143
3144 if (!wiphy->max_acl_mac_addrs)
3145 return ERR_PTR(-EOPNOTSUPP);
3146
3147 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3148 return ERR_PTR(-EINVAL);
3149
3150 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3151 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3152 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3153 return ERR_PTR(-EINVAL);
3154
3155 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3156 return ERR_PTR(-EINVAL);
3157
3158 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3159 if (n_entries < 0)
3160 return ERR_PTR(n_entries);
3161
3162 if (n_entries > wiphy->max_acl_mac_addrs)
3163 return ERR_PTR(-ENOTSUPP);
3164
3165 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3166 GFP_KERNEL);
3167 if (!acl)
3168 return ERR_PTR(-ENOMEM);
3169
3170 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3171 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3172 i++;
3173 }
3174
3175 acl->n_acl_entries = n_entries;
3176 acl->acl_policy = acl_policy;
3177
3178 return acl;
3179}
3180
3181static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3182{
3183 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3184 struct net_device *dev = info->user_ptr[1];
3185 struct cfg80211_acl_data *acl;
3186 int err;
3187
3188 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3189 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3190 return -EOPNOTSUPP;
3191
3192 if (!dev->ieee80211_ptr->beacon_interval)
3193 return -EINVAL;
3194
3195 acl = parse_acl_data(&rdev->wiphy, info);
3196 if (IS_ERR(acl))
3197 return PTR_ERR(acl);
3198
3199 err = rdev_set_mac_acl(rdev, dev, acl);
3200
3201 kfree(acl);
3202
3203 return err;
3204}
3205
a1193be8 3206static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3207 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3208{
8860020e 3209 bool haveinfo = false;
ed1b6cc7 3210
a1193be8
SW		 3211 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3212 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3213 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3214 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3215 return -EINVAL;
3216
8860020e 3217 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3218
a1193be8
SW		 3219 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3220 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3221 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3222 if (!bcn->head_len)
3223 return -EINVAL;
3224 haveinfo = true;
ed1b6cc7
JB		 3225 }
3226
a1193be8
SW		 3227 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3228 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3229 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3230 haveinfo = true;
ed1b6cc7
JB		 3231 }
3232
4c476991
JB		 3233 if (!haveinfo)
3234 return -EINVAL;
3b85875a 3235
a1193be8
SW		 3236 if (attrs[NL80211_ATTR_IE]) {
3237 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3238 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3239 }
3240
a1193be8 3241 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3242 bcn->proberesp_ies =
a1193be8 3243 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3244 bcn->proberesp_ies_len =
a1193be8 3245 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3246 }
3247
a1193be8 3248 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3249 bcn->assocresp_ies =
a1193be8 3250 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3251 bcn->assocresp_ies_len =
a1193be8 3252 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3253 }
3254
a1193be8
SW		 3255 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3256 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3257 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3258 }
3259
8860020e
JB		 3260 return 0;
3261}
3262
46c1dd0c
FF		 3263static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3264 struct cfg80211_ap_settings *params)
3265{
3266 struct wireless_dev *wdev;
3267 bool ret = false;
3268
89a54e48 3269 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3270 if (wdev->iftype != NL80211_IFTYPE_AP &&
3271 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3272 continue;
3273
683b6d3b 3274 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3275 continue;
3276
683b6d3b 3277 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3278 ret = true;
3279 break;
3280 }
3281
46c1dd0c
FF		 3282 return ret;
3283}
3284
e39e5b5e
JM		 3285static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3286 enum nl80211_auth_type auth_type,
3287 enum nl80211_commands cmd)
3288{
3289 if (auth_type > NL80211_AUTHTYPE_MAX)
3290 return false;
3291
3292 switch (cmd) {
3293 case NL80211_CMD_AUTHENTICATE:
3294 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3295 auth_type == NL80211_AUTHTYPE_SAE)
3296 return false;
3297 return true;
3298 case NL80211_CMD_CONNECT:
3299 case NL80211_CMD_START_AP:
3300 /* SAE not supported yet */
3301 if (auth_type == NL80211_AUTHTYPE_SAE)
3302 return false;
3303 return true;
3304 default:
3305 return false;
3306 }
3307}
3308
8860020e
JB		 3309static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3310{
3311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3312 struct net_device *dev = info->user_ptr[1];
3313 struct wireless_dev *wdev = dev->ieee80211_ptr;
3314 struct cfg80211_ap_settings params;
3315 int err;
3316
3317 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3318 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3319 return -EOPNOTSUPP;
3320
3321 if (!rdev->ops->start_ap)
3322 return -EOPNOTSUPP;
3323
3324 if (wdev->beacon_interval)
3325 return -EALREADY;
3326
3327 memset(&params, 0, sizeof(params));
3328
3329 /* these are required for START_AP */
3330 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3331 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3332 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3333 return -EINVAL;
3334
a1193be8 3335 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3336 if (err)
3337 return err;
3338
3339 params.beacon_interval =
3340 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3341 params.dtim_period =
3342 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3343
3344 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3345 if (err)
3346 return err;
3347
3348 /*
3349 * In theory, some of these attributes should be required here
3350 * but since they were not used when the command was originally
3351 * added, keep them optional for old user space programs to let
3352 * them continue to work with drivers that do not need the
3353 * additional information -- drivers must check!
3354 */
3355 if (info->attrs[NL80211_ATTR_SSID]) {
3356 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3357 params.ssid_len =
3358 nla_len(info->attrs[NL80211_ATTR_SSID]);
3359 if (params.ssid_len == 0 ||
3360 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3361 return -EINVAL;
3362 }
3363
3364 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3365 params.hidden_ssid = nla_get_u32(
3366 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3367 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3368 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3369 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3370 return -EINVAL;
3371 }
3372
3373 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3374
3375 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3376 params.auth_type = nla_get_u32(
3377 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3378 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3379 NL80211_CMD_START_AP))
8860020e
JB		 3380 return -EINVAL;
3381 } else
3382 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3383
3384 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3385 NL80211_MAX_NR_CIPHER_SUITES);
3386 if (err)
3387 return err;
3388
1b658f11
VT		 3389 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3390 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3391 return -EOPNOTSUPP;
3392 params.inactivity_timeout = nla_get_u16(
3393 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3394 }
3395
53cabad7
JB		 3396 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3397 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3398 return -EINVAL;
3399 params.p2p_ctwindow =
3400 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3401 if (params.p2p_ctwindow > 127)
3402 return -EINVAL;
3403 if (params.p2p_ctwindow != 0 &&
3404 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3405 return -EINVAL;
3406 }
3407
3408 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3409 u8 tmp;
3410
3411 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3412 return -EINVAL;
3413 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3414 if (tmp > 1)
3415 return -EINVAL;
3416 params.p2p_opp_ps = tmp;
3417 if (params.p2p_opp_ps != 0 &&
3418 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3419 return -EINVAL;
3420 }
3421
aa430da4 3422 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3423 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3424 if (err)
3425 return err;
3426 } else if (wdev->preset_chandef.chan) {
3427 params.chandef = wdev->preset_chandef;
46c1dd0c 3428 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3429 return -EINVAL;
3430
923b352f
AN		 3431 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3432 wdev->iftype))
aa430da4
JB		 3433 return -EINVAL;
3434
77765eaf
VT		 3435 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3436 params.acl = parse_acl_data(&rdev->wiphy, info);
3437 if (IS_ERR(params.acl))
3438 return PTR_ERR(params.acl);
3439 }
3440
18998c38
EP		 3441 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3442 params.smps_mode =
3443 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3444 switch (params.smps_mode) {
3445 case NL80211_SMPS_OFF:
3446 break;
3447 case NL80211_SMPS_STATIC:
3448 if (!(rdev->wiphy.features &
3449 NL80211_FEATURE_STATIC_SMPS))
3450 return -EINVAL;
3451 break;
3452 case NL80211_SMPS_DYNAMIC:
3453 if (!(rdev->wiphy.features &
3454 NL80211_FEATURE_DYNAMIC_SMPS))
3455 return -EINVAL;
3456 break;
3457 default:
3458 return -EINVAL;
3459 }
3460 } else {
3461 params.smps_mode = NL80211_SMPS_OFF;
3462 }
3463
c56589ed 3464 wdev_lock(wdev);
e35e4d28 3465 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3466 if (!err) {
683b6d3b 3467 wdev->preset_chandef = params.chandef;
8860020e 3468 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3469 wdev->chandef = params.chandef;
06e191e2
AQ		 3470 wdev->ssid_len = params.ssid_len;
3471 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3472 }
c56589ed 3473 wdev_unlock(wdev);
77765eaf
VT		 3474
3475 kfree(params.acl);
3476
56d1893d 3477 return err;
ed1b6cc7
JB		 3478}
3479
8860020e
JB		 3480static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3481{
3482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3483 struct net_device *dev = info->user_ptr[1];
3484 struct wireless_dev *wdev = dev->ieee80211_ptr;
3485 struct cfg80211_beacon_data params;
3486 int err;
3487
3488 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3489 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3490 return -EOPNOTSUPP;
3491
3492 if (!rdev->ops->change_beacon)
3493 return -EOPNOTSUPP;
3494
3495 if (!wdev->beacon_interval)
3496 return -EINVAL;
3497
a1193be8 3498 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3499 if (err)
3500 return err;
3501
c56589ed
SW		 3502 wdev_lock(wdev);
3503 err = rdev_change_beacon(rdev, dev, &params);
3504 wdev_unlock(wdev);
3505
3506 return err;
8860020e
JB		 3507}
3508
3509static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3510{
4c476991
JB		 3511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3512 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3513
7c8d5e03 3514 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3515}
3516
5727ef1b
JB		 3517static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3518 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3519 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3520 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3521 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3522 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3523 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3524};
3525
eccb8e8f 3526static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3527 enum nl80211_iftype iftype,
eccb8e8f 3528 struct station_parameters *params)
5727ef1b
JB		 3529{
3530 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3531 struct nlattr *nla;
5727ef1b
JB		 3532 int flag;
3533
eccb8e8f
JB		 3534 /*
3535 * Try parsing the new attribute first so userspace
3536 * can specify both for older kernels.
3537 */
3538 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3539 if (nla) {
3540 struct nl80211_sta_flag_update *sta_flags;
3541
3542 sta_flags = nla_data(nla);
3543 params->sta_flags_mask = sta_flags->mask;
3544 params->sta_flags_set = sta_flags->set;
77ee7c89 3545 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3546 if ((params->sta_flags_mask |
3547 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3548 return -EINVAL;
3549 return 0;
3550 }
3551
3552 /* if present, parse the old attribute */
5727ef1b 3553
eccb8e8f 3554 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3555 if (!nla)
3556 return 0;
3557
3558 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3559 nla, sta_flags_policy))
3560 return -EINVAL;
3561
bdd3ae3d
JB		 3562 /*
3563 * Only allow certain flags for interface types so that
3564 * other attributes are silently ignored. Remember that
3565 * this is backward compatibility code with old userspace
3566 * and shouldn't be hit in other cases anyway.
3567 */
3568 switch (iftype) {
3569 case NL80211_IFTYPE_AP:
3570 case NL80211_IFTYPE_AP_VLAN:
3571 case NL80211_IFTYPE_P2P_GO:
3572 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3573 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3574 BIT(NL80211_STA_FLAG_WME) |
3575 BIT(NL80211_STA_FLAG_MFP);
3576 break;
3577 case NL80211_IFTYPE_P2P_CLIENT:
3578 case NL80211_IFTYPE_STATION:
3579 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3580 BIT(NL80211_STA_FLAG_TDLS_PEER);
3581 break;
3582 case NL80211_IFTYPE_MESH_POINT:
3583 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3584 BIT(NL80211_STA_FLAG_MFP) |
3585 BIT(NL80211_STA_FLAG_AUTHORIZED);
3586 default:
3587 return -EINVAL;
3588 }
5727ef1b 3589
3383b5a6
JB		 3590 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3591 if (flags[flag]) {
eccb8e8f 3592 params->sta_flags_set |= (1<<flag);
5727ef1b 3593
3383b5a6
JB		 3594 /* no longer support new API additions in old API */
3595 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3596 return -EINVAL;
3597 }
3598 }
3599
5727ef1b
JB		 3600 return 0;
3601}
3602
c8dcfd8a
FF		 3603static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3604 int attr)
3605{
3606 struct nlattr *rate;
8eb41c8d
VK		 3607 u32 bitrate;
3608 u16 bitrate_compat;
b51f3bee 3609 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3610
3611 rate = nla_nest_start(msg, attr);
3612 if (!rate)
db9c64cf 3613 return false;
c8dcfd8a
FF		 3614
3615 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3616 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3617 /* report 16-bit bitrate only if we can */
3618 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3619 if (bitrate > 0 &&
3620 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3621 return false;
3622 if (bitrate_compat > 0 &&
3623 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3624 return false;
3625
b51f3bee
JB		 3626 switch (info->bw) {
3627 case RATE_INFO_BW_5:
3628 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3629 break;
3630 case RATE_INFO_BW_10:
3631 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3632 break;
3633 default:
3634 WARN_ON(1);
3635 /* fall through */
3636 case RATE_INFO_BW_20:
3637 rate_flg = 0;
3638 break;
3639 case RATE_INFO_BW_40:
3640 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3641 break;
3642 case RATE_INFO_BW_80:
3643 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3644 break;
3645 case RATE_INFO_BW_160:
3646 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3647 break;
3648 }
3649
3650 if (rate_flg && nla_put_flag(msg, rate_flg))
3651 return false;
3652
db9c64cf
JB		 3653 if (info->flags & RATE_INFO_FLAGS_MCS) {
3654 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3655 return false;
db9c64cf
JB		 3656 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3657 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3658 return false;
3659 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3660 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3661 return false;
3662 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3663 return false;
db9c64cf
JB		 3664 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3665 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3666 return false;
3667 }
c8dcfd8a
FF		 3668
3669 nla_nest_end(msg, rate);
3670 return true;
c8dcfd8a
FF		 3671}
3672
119363c7
FF		 3673static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3674 int id)
3675{
3676 void *attr;
3677 int i = 0;
3678
3679 if (!mask)
3680 return true;
3681
3682 attr = nla_nest_start(msg, id);
3683 if (!attr)
3684 return false;
3685
3686 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3687 if (!(mask & BIT(i)))
3688 continue;
3689
3690 if (nla_put_u8(msg, i, signal[i]))
3691 return false;
3692 }
3693
3694 nla_nest_end(msg, attr);
3695
3696 return true;
3697}
3698
cf5ead82
JB		 3699static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3700 u32 seq, int flags,
66266b3a
JL		 3701 struct cfg80211_registered_device *rdev,
3702 struct net_device *dev,
98b62183 3703 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3704{
3705 void *hdr;
f4263c98 3706 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3707
cf5ead82 3708 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3709 if (!hdr)
3710 return -1;
3711
9360ffd1
DM		 3712 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3713 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3714 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3715 goto nla_put_failure;
f5ea9120 3716
2ec600d6
LCC		 3717 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3718 if (!sinfoattr)
fd5b74dc 3719 goto nla_put_failure;
319090bf
JB		 3720
3721#define PUT_SINFO(attr, memb, type) do { \
3722 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3723 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3724 sinfo->memb)) \
3725 goto nla_put_failure; \
3726 } while (0)
3727
3728 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3729 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3730
3731 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3732 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3733 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3734 (u32)sinfo->rx_bytes))
9360ffd1 3735 goto nla_put_failure;
319090bf
JB		 3736
3737 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3738 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3739 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3740 (u32)sinfo->tx_bytes))
3741 goto nla_put_failure;
319090bf
JB		 3742
3743 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3744 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3745 PUT_SINFO(LLID, llid, u16);
3746 PUT_SINFO(PLID, plid, u16);
3747 PUT_SINFO(PLINK_STATE, plink_state, u8);
3748
66266b3a
JL		 3749 switch (rdev->wiphy.signal_type) {
3750 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3751 PUT_SINFO(SIGNAL, signal, u8);
3752 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3753 break;
3754 default:
3755 break;
3756 }
319090bf 3757 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3758 if (!nl80211_put_signal(msg, sinfo->chains,
3759 sinfo->chain_signal,
3760 NL80211_STA_INFO_CHAIN_SIGNAL))
3761 goto nla_put_failure;
3762 }
319090bf 3763 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3764 if (!nl80211_put_signal(msg, sinfo->chains,
3765 sinfo->chain_signal_avg,
3766 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3767 goto nla_put_failure;
3768 }
319090bf 3769 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3770 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3771 NL80211_STA_INFO_TX_BITRATE))
3772 goto nla_put_failure;
3773 }
319090bf 3774 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3775 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3776 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3777 goto nla_put_failure;
420e7fab 3778 }
319090bf
JB		 3779
3780 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3781 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3782 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3783 PUT_SINFO(TX_FAILED, tx_failed, u32);
3784 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3785 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3786 PUT_SINFO(LOCAL_PM, local_pm, u32);
3787 PUT_SINFO(PEER_PM, peer_pm, u32);
3788 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3789
3790 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3791 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3792 if (!bss_param)
3793 goto nla_put_failure;
3794
9360ffd1
DM		 3795 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3796 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3797 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3798 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3799 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3800 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3801 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3802 sinfo->bss_param.dtim_period) ||
3803 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3804 sinfo->bss_param.beacon_interval))
3805 goto nla_put_failure;
f4263c98
PS		 3806
3807 nla_nest_end(msg, bss_param);
3808 }
319090bf 3809 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3810 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3811 sizeof(struct nl80211_sta_flag_update),
3812 &sinfo->sta_flags))
3813 goto nla_put_failure;
319090bf
JB		 3814
3815 PUT_SINFO(T_OFFSET, t_offset, u64);
3816 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
a76b1942
JB		 3817 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3818 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3819
3820#undef PUT_SINFO
6de39808
JB		 3821
3822 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3823 struct nlattr *tidsattr;
3824 int tid;
3825
3826 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3827 if (!tidsattr)
3828 goto nla_put_failure;
3829
3830 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3831 struct cfg80211_tid_stats *tidstats;
3832 struct nlattr *tidattr;
3833
3834 tidstats = &sinfo->pertid[tid];
3835
3836 if (!tidstats->filled)
3837 continue;
3838
3839 tidattr = nla_nest_start(msg, tid + 1);
3840 if (!tidattr)
3841 goto nla_put_failure;
3842
3843#define PUT_TIDVAL(attr, memb, type) do { \
3844 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3845 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3846 tidstats->memb)) \
3847 goto nla_put_failure; \
3848 } while (0)
3849
3850 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3851 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3852 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3853 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3854
3855#undef PUT_TIDVAL
3856 nla_nest_end(msg, tidattr);
3857 }
3858
3859 nla_nest_end(msg, tidsattr);
3860 }
3861
2ec600d6 3862 nla_nest_end(msg, sinfoattr);
fd5b74dc 3863
319090bf 3864 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3865 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3866 sinfo->assoc_req_ies))
3867 goto nla_put_failure;
50d3dfb7 3868
053c095a
JB		 3869 genlmsg_end(msg, hdr);
3870 return 0;
fd5b74dc
JB		 3871
3872 nla_put_failure:
bc3ed28c
TG		 3873 genlmsg_cancel(msg, hdr);
3874 return -EMSGSIZE;
fd5b74dc
JB		 3875}
3876
2ec600d6 3877static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3878 struct netlink_callback *cb)
2ec600d6 3879{
2ec600d6 3880 struct station_info sinfo;
1b8ec87a 3881 struct cfg80211_registered_device *rdev;
97990a06 3882 struct wireless_dev *wdev;
2ec600d6 3883 u8 mac_addr[ETH_ALEN];
97990a06 3884 int sta_idx = cb->args[2];
2ec600d6 3885 int err;
2ec600d6 3886
1b8ec87a 3887 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3888 if (err)
3889 return err;
bba95fef 3890
97990a06
JB		 3891 if (!wdev->netdev) {
3892 err = -EINVAL;
3893 goto out_err;
3894 }
3895
1b8ec87a 3896 if (!rdev->ops->dump_station) {
eec60b03 3897 err = -EOPNOTSUPP;
bba95fef
JB		 3898 goto out_err;
3899 }
3900
bba95fef 3901 while (1) {
f612cedf 3902 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3903 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3904 mac_addr, &sinfo);
bba95fef
JB		 3905 if (err == -ENOENT)
3906 break;
3907 if (err)
3b85875a 3908 goto out_err;
bba95fef 3909
cf5ead82 3910 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3911 NETLINK_CB(cb->skb).portid,
bba95fef 3912 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3913 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3914 &sinfo) < 0)
3915 goto out;
3916
3917 sta_idx++;
3918 }
3919
3920
3921 out:
97990a06 3922 cb->args[2] = sta_idx;
bba95fef 3923 err = skb->len;
bba95fef 3924 out_err:
1b8ec87a 3925 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3926
3927 return err;
2ec600d6 3928}
fd5b74dc 3929
5727ef1b
JB		 3930static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3931{
4c476991
JB		 3932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3933 struct net_device *dev = info->user_ptr[1];
2ec600d6 3934 struct station_info sinfo;
fd5b74dc
JB		 3935 struct sk_buff *msg;
3936 u8 *mac_addr = NULL;
4c476991 3937 int err;
fd5b74dc 3938
2ec600d6 3939 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3940
3941 if (!info->attrs[NL80211_ATTR_MAC])
3942 return -EINVAL;
3943
3944 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3945
4c476991
JB		 3946 if (!rdev->ops->get_station)
3947 return -EOPNOTSUPP;
3b85875a 3948
e35e4d28 3949 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3950 if (err)
4c476991 3951 return err;
2ec600d6 3952
fd2120ca 3953 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3954 if (!msg)
4c476991 3955 return -ENOMEM;
fd5b74dc 3956
cf5ead82
JB		 3957 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3958 info->snd_portid, info->snd_seq, 0,
66266b3a 3959 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3960 nlmsg_free(msg);
3961 return -ENOBUFS;
3962 }
3b85875a 3963
4c476991 3964 return genlmsg_reply(msg, info);
5727ef1b
JB		 3965}
3966
77ee7c89
JB		 3967int cfg80211_check_station_change(struct wiphy *wiphy,
3968 struct station_parameters *params,
3969 enum cfg80211_station_type statype)
3970{
3971 if (params->listen_interval != -1)
3972 return -EINVAL;
c72e1140
AN		 3973 if (params->aid &&
3974 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3975 return -EINVAL;
3976
3977 /* When you run into this, adjust the code below for the new flag */
3978 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3979
3980 switch (statype) {
eef941e6
TP		 3981 case CFG80211_STA_MESH_PEER_KERNEL:
3982 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3983 /*
3984 * No ignoring the TDLS flag here -- the userspace mesh
3985 * code doesn't have the bug of including TDLS in the
3986 * mask everywhere.
3987 */
3988 if (params->sta_flags_mask &
3989 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3990 BIT(NL80211_STA_FLAG_MFP) |
3991 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3992 return -EINVAL;
3993 break;
3994 case CFG80211_STA_TDLS_PEER_SETUP:
3995 case CFG80211_STA_TDLS_PEER_ACTIVE:
3996 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3997 return -EINVAL;
3998 /* ignore since it can't change */
3999 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4000 break;
4001 default:
4002 /* disallow mesh-specific things */
4003 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4004 return -EINVAL;
4005 if (params->local_pm)
4006 return -EINVAL;
4007 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4008 return -EINVAL;
4009 }
4010
4011 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4012 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4013 /* TDLS can't be set, ... */
4014 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4015 return -EINVAL;
4016 /*
4017 * ... but don't bother the driver with it. This works around
4018 * a hostapd/wpa_supplicant issue -- it always includes the
4019 * TLDS_PEER flag in the mask even for AP mode.
4020 */
4021 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4022 }
4023
47edb11b
AB		 4024 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4025 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4026 /* reject other things that can't change */
4027 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4028 return -EINVAL;
4029 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4030 return -EINVAL;
4031 if (params->supported_rates)
4032 return -EINVAL;
4033 if (params->ext_capab || params->ht_capa || params->vht_capa)
4034 return -EINVAL;
4035 }
4036
47edb11b
AB		 4037 if (statype != CFG80211_STA_AP_CLIENT &&
4038 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4039 if (params->vlan)
4040 return -EINVAL;
4041 }
4042
4043 switch (statype) {
4044 case CFG80211_STA_AP_MLME_CLIENT:
4045 /* Use this only for authorizing/unauthorizing a station */
4046 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4047 return -EOPNOTSUPP;
4048 break;
4049 case CFG80211_STA_AP_CLIENT:
47edb11b 4050 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4051 /* accept only the listed bits */
4052 if (params->sta_flags_mask &
4053 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4054 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4055 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4056 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4057 BIT(NL80211_STA_FLAG_WME) |
4058 BIT(NL80211_STA_FLAG_MFP)))
4059 return -EINVAL;
4060
4061 /* but authenticated/associated only if driver handles it */
4062 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4063 params->sta_flags_mask &
4064 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4065 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4066 return -EINVAL;
4067 break;
4068 case CFG80211_STA_IBSS:
4069 case CFG80211_STA_AP_STA:
4070 /* reject any changes other than AUTHORIZED */
4071 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4072 return -EINVAL;
4073 break;
4074 case CFG80211_STA_TDLS_PEER_SETUP:
4075 /* reject any changes other than AUTHORIZED or WME */
4076 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4077 BIT(NL80211_STA_FLAG_WME)))
4078 return -EINVAL;
4079 /* force (at least) rates when authorizing */
4080 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4081 !params->supported_rates)
4082 return -EINVAL;
4083 break;
4084 case CFG80211_STA_TDLS_PEER_ACTIVE:
4085 /* reject any changes */
4086 return -EINVAL;
eef941e6 4087 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4088 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4089 return -EINVAL;
4090 break;
eef941e6 4091 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4092 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4093 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4094 return -EINVAL;
4095 break;
4096 }
4097
4098 return 0;
4099}
4100EXPORT_SYMBOL(cfg80211_check_station_change);
4101
5727ef1b 4102/*
c258d2de 4103 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4104 */
80b99899
JB		 4105static struct net_device *get_vlan(struct genl_info *info,
4106 struct cfg80211_registered_device *rdev)
5727ef1b 4107{
463d0183 4108 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4109 struct net_device *v;
4110 int ret;
4111
4112 if (!vlanattr)
4113 return NULL;
4114
4115 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4116 if (!v)
4117 return ERR_PTR(-ENODEV);
4118
4119 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4120 ret = -EINVAL;
4121 goto error;
5727ef1b 4122 }
80b99899 4123
77ee7c89
JB		 4124 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4125 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4126 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4127 ret = -EINVAL;
4128 goto error;
4129 }
4130
80b99899
JB		 4131 if (!netif_running(v)) {
4132 ret = -ENETDOWN;
4133 goto error;
4134 }
4135
4136 return v;
4137 error:
4138 dev_put(v);
4139 return ERR_PTR(ret);
5727ef1b
JB		 4140}
4141
94e860f1
JB		 4142static const struct nla_policy
4143nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4144 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4145 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4146};
4147
ff276691
JB		 4148static int nl80211_parse_sta_wme(struct genl_info *info,
4149 struct station_parameters *params)
df881293 4150{
df881293
JM		 4151 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4152 struct nlattr *nla;
4153 int err;
4154
df881293
JM		 4155 /* parse WME attributes if present */
4156 if (!info->attrs[NL80211_ATTR_STA_WME])
4157 return 0;
4158
4159 nla = info->attrs[NL80211_ATTR_STA_WME];
4160 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4161 nl80211_sta_wme_policy);
4162 if (err)
4163 return err;
4164
4165 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4166 params->uapsd_queues = nla_get_u8(
4167 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4168 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4169 return -EINVAL;
4170
4171 if (tb[NL80211_STA_WME_MAX_SP])
4172 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4173
4174 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4175 return -EINVAL;
4176
4177 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4178
4179 return 0;
4180}
4181
c01fc9ad
SD		 4182static int nl80211_parse_sta_channel_info(struct genl_info *info,
4183 struct station_parameters *params)
4184{
4185 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4186 params->supported_channels =
4187 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4188 params->supported_channels_len =
4189 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4190 /*
4191 * Need to include at least one (first channel, number of
4192 * channels) tuple for each subband, and must have proper
4193 * tuples for the rest of the data as well.
4194 */
4195 if (params->supported_channels_len < 2)
4196 return -EINVAL;
4197 if (params->supported_channels_len % 2)
4198 return -EINVAL;
4199 }
4200
4201 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4202 params->supported_oper_classes =
4203 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4204 params->supported_oper_classes_len =
4205 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4206 /*
4207 * The value of the Length field of the Supported Operating
4208 * Classes element is between 2 and 253.
4209 */
4210 if (params->supported_oper_classes_len < 2 ||
4211 params->supported_oper_classes_len > 253)
4212 return -EINVAL;
4213 }
4214 return 0;
4215}
4216
ff276691
JB		 4217static int nl80211_set_station_tdls(struct genl_info *info,
4218 struct station_parameters *params)
4219{
c01fc9ad 4220 int err;
ff276691 4221 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4222 if (info->attrs[NL80211_ATTR_PEER_AID])
4223 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4224 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4225 params->ht_capa =
4226 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4227 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4228 params->vht_capa =
4229 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4230
c01fc9ad
SD		 4231 err = nl80211_parse_sta_channel_info(info, params);
4232 if (err)
4233 return err;
4234
ff276691
JB		 4235 return nl80211_parse_sta_wme(info, params);
4236}
4237
5727ef1b
JB		 4238static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4239{
4c476991 4240 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4241 struct net_device *dev = info->user_ptr[1];
5727ef1b 4242 struct station_parameters params;
77ee7c89
JB		 4243 u8 *mac_addr;
4244 int err;
5727ef1b
JB		 4245
4246 memset(&params, 0, sizeof(params));
4247
4248 params.listen_interval = -1;
4249
77ee7c89
JB		 4250 if (!rdev->ops->change_station)
4251 return -EOPNOTSUPP;
4252
5727ef1b
JB		 4253 if (info->attrs[NL80211_ATTR_STA_AID])
4254 return -EINVAL;
4255
4256 if (!info->attrs[NL80211_ATTR_MAC])
4257 return -EINVAL;
4258
4259 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4260
4261 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4262 params.supported_rates =
4263 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4264 params.supported_rates_len =
4265 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4266 }
4267
9d62a986
JM		 4268 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4269 params.capability =
4270 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4271 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4272 }
4273
4274 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4275 params.ext_capab =
4276 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4277 params.ext_capab_len =
4278 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4279 }
4280
df881293 4281 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4282 return -EINVAL;
36aedc90 4283
bdd3ae3d 4284 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4285 return -EINVAL;
4286
f8bacc21 4287 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4288 params.plink_action =
f8bacc21
JB		 4289 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4290 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4291 return -EINVAL;
4292 }
2ec600d6 4293
f8bacc21 4294 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4295 params.plink_state =
f8bacc21
JB		 4296 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4297 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4298 return -EINVAL;
4299 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4300 }
9c3990aa 4301
3b1c5a53
MP		 4302 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4303 enum nl80211_mesh_power_mode pm = nla_get_u32(
4304 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4305
4306 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4307 pm > NL80211_MESH_POWER_MAX)
4308 return -EINVAL;
4309
4310 params.local_pm = pm;
4311 }
4312
77ee7c89
JB		 4313 /* Include parameters for TDLS peer (will check later) */
4314 err = nl80211_set_station_tdls(info, &params);
4315 if (err)
4316 return err;
4317
4318 params.vlan = get_vlan(info, rdev);
4319 if (IS_ERR(params.vlan))
4320 return PTR_ERR(params.vlan);
4321
a97f4424
JB		 4322 switch (dev->ieee80211_ptr->iftype) {
4323 case NL80211_IFTYPE_AP:
4324 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4325 case NL80211_IFTYPE_P2P_GO:
074ac8df 4326 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4327 case NL80211_IFTYPE_STATION:
267335d6 4328 case NL80211_IFTYPE_ADHOC:
a97f4424 4329 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4330 break;
4331 default:
77ee7c89
JB		 4332 err = -EOPNOTSUPP;
4333 goto out_put_vlan;
034d655e
JB		 4334 }
4335
77ee7c89 4336 /* driver will call cfg80211_check_station_change() */
e35e4d28 4337 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4338
77ee7c89 4339 out_put_vlan:
5727ef1b
JB		 4340 if (params.vlan)
4341 dev_put(params.vlan);
3b85875a 4342
5727ef1b
JB		 4343 return err;
4344}
4345
4346static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4347{
4c476991 4348 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4349 int err;
4c476991 4350 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4351 struct station_parameters params;
4352 u8 *mac_addr = NULL;
4353
4354 memset(&params, 0, sizeof(params));
4355
984c311b
JB		 4356 if (!rdev->ops->add_station)
4357 return -EOPNOTSUPP;
4358
5727ef1b
JB		 4359 if (!info->attrs[NL80211_ATTR_MAC])
4360 return -EINVAL;
4361
5727ef1b
JB		 4362 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4363 return -EINVAL;
4364
4365 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4366 return -EINVAL;
4367
5e4b6f56
JM		 4368 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4369 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4370 return -EINVAL;
4371
5727ef1b
JB		 4372 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4373 params.supported_rates =
4374 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4375 params.supported_rates_len =
4376 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4377 params.listen_interval =
4378 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4379
3d124ea2 4380 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4381 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4382 else
4383 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4384 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4385 return -EINVAL;
51b50fbe 4386
9d62a986
JM		 4387 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4388 params.capability =
4389 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4390 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4391 }
4392
4393 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4394 params.ext_capab =
4395 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4396 params.ext_capab_len =
4397 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4398 }
4399
36aedc90
JM		 4400 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4401 params.ht_capa =
4402 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4403
f461be3e
MP		 4404 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4405 params.vht_capa =
4406 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4407
60f4a7b1
MK		 4408 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4409 params.opmode_notif_used = true;
4410 params.opmode_notif =
4411 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4412 }
4413
f8bacc21 4414 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4415 params.plink_action =
f8bacc21
JB		 4416 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4417 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4418 return -EINVAL;
4419 }
96b78dff 4420
c01fc9ad
SD		 4421 err = nl80211_parse_sta_channel_info(info, &params);
4422 if (err)
4423 return err;
4424
ff276691
JB		 4425 err = nl80211_parse_sta_wme(info, &params);
4426 if (err)
4427 return err;
bdd90d5e 4428
bdd3ae3d 4429 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4430 return -EINVAL;
4431
496fcc29
JB		 4432 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4433 * as userspace might just pass through the capabilities from the IEs
4434 * directly, rather than enforcing this restriction and returning an
4435 * error in this case.
4436 */
4437 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4438 params.ht_capa = NULL;
4439 params.vht_capa = NULL;
4440 }
4441
77ee7c89
JB		 4442 /* When you run into this, adjust the code below for the new flag */
4443 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4444
bdd90d5e
JB		 4445 switch (dev->ieee80211_ptr->iftype) {
4446 case NL80211_IFTYPE_AP:
4447 case NL80211_IFTYPE_AP_VLAN:
4448 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4449 /* ignore WME attributes if iface/sta is not capable */
4450 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4451 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4452 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4453
bdd90d5e 4454 /* TDLS peers cannot be added */
3d124ea2
JM		 4455 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4456 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4457 return -EINVAL;
bdd90d5e
JB		 4458 /* but don't bother the driver with it */
4459 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4460
d582cffb
JB		 4461 /* allow authenticated/associated only if driver handles it */
4462 if (!(rdev->wiphy.features &
4463 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4464 params.sta_flags_mask &
4465 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4466 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4467 return -EINVAL;
4468
bdd90d5e
JB		 4469 /* must be last in here for error handling */
4470 params.vlan = get_vlan(info, rdev);
4471 if (IS_ERR(params.vlan))
4472 return PTR_ERR(params.vlan);
4473 break;
4474 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4475 /* ignore uAPSD data */
4476 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4477
d582cffb
JB		 4478 /* associated is disallowed */
4479 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4480 return -EINVAL;
bdd90d5e 4481 /* TDLS peers cannot be added */
3d124ea2
JM		 4482 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4483 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4484 return -EINVAL;
4485 break;
4486 case NL80211_IFTYPE_STATION:
93d08f0b 4487 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4488 /* ignore uAPSD data */
4489 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4490
77ee7c89
JB		 4491 /* these are disallowed */
4492 if (params.sta_flags_mask &
4493 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4494 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4495 return -EINVAL;
bdd90d5e
JB		 4496 /* Only TDLS peers can be added */
4497 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4498 return -EINVAL;
4499 /* Can only add if TDLS ... */
4500 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4501 return -EOPNOTSUPP;
4502 /* ... with external setup is supported */
4503 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4504 return -EOPNOTSUPP;
77ee7c89
JB		 4505 /*
4506 * Older wpa_supplicant versions always mark the TDLS peer
4507 * as authorized, but it shouldn't yet be.
4508 */
4509 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4510 break;
4511 default:
4512 return -EOPNOTSUPP;
c75786c9
EP		 4513 }
4514
bdd90d5e 4515 /* be aware of params.vlan when changing code here */
5727ef1b 4516
e35e4d28 4517 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4518
5727ef1b
JB		 4519 if (params.vlan)
4520 dev_put(params.vlan);
5727ef1b
JB		 4521 return err;
4522}
4523
4524static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4525{
4c476991
JB		 4526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4527 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4528 struct station_del_parameters params;
4529
4530 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4531
4532 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4533 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4534
e80cf853 4535 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4536 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4537 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4538 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4539 return -EINVAL;
5727ef1b 4540
4c476991
JB		 4541 if (!rdev->ops->del_station)
4542 return -EOPNOTSUPP;
3b85875a 4543
98856866
JM		 4544 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4545 params.subtype =
4546 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4547 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4548 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4549 return -EINVAL;
4550 } else {
4551 /* Default to Deauthentication frame */
4552 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4553 }
4554
4555 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4556 params.reason_code =
4557 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4558 if (params.reason_code == 0)
4559 return -EINVAL; /* 0 is reserved */
4560 } else {
4561 /* Default to reason code 2 */
4562 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4563 }
4564
89c771e5 4565 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4566}
4567
15e47304 4568static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4569 int flags, struct net_device *dev,
4570 u8 *dst, u8 *next_hop,
4571 struct mpath_info *pinfo)
4572{
4573 void *hdr;
4574 struct nlattr *pinfoattr;
4575
1ef4c850 4576 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4577 if (!hdr)
4578 return -1;
4579
9360ffd1
DM		 4580 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4581 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4582 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4583 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4584 goto nla_put_failure;
f5ea9120 4585
2ec600d6
LCC		 4586 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4587 if (!pinfoattr)
4588 goto nla_put_failure;
9360ffd1
DM		 4589 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4590 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4591 pinfo->frame_qlen))
4592 goto nla_put_failure;
4593 if (((pinfo->filled & MPATH_INFO_SN) &&
4594 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4595 ((pinfo->filled & MPATH_INFO_METRIC) &&
4596 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4597 pinfo->metric)) ||
4598 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4599 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4600 pinfo->exptime)) ||
4601 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4602 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4603 pinfo->flags)) ||
4604 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4605 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4606 pinfo->discovery_timeout)) ||
4607 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4608 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4609 pinfo->discovery_retries)))
4610 goto nla_put_failure;
2ec600d6
LCC		 4611
4612 nla_nest_end(msg, pinfoattr);
4613
053c095a
JB		 4614 genlmsg_end(msg, hdr);
4615 return 0;
2ec600d6
LCC		 4616
4617 nla_put_failure:
bc3ed28c
TG		 4618 genlmsg_cancel(msg, hdr);
4619 return -EMSGSIZE;
2ec600d6
LCC		 4620}
4621
4622static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4623 struct netlink_callback *cb)
2ec600d6 4624{
2ec600d6 4625 struct mpath_info pinfo;
1b8ec87a 4626 struct cfg80211_registered_device *rdev;
97990a06 4627 struct wireless_dev *wdev;
2ec600d6
LCC		 4628 u8 dst[ETH_ALEN];
4629 u8 next_hop[ETH_ALEN];
97990a06 4630 int path_idx = cb->args[2];
2ec600d6 4631 int err;
2ec600d6 4632
1b8ec87a 4633 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4634 if (err)
4635 return err;
bba95fef 4636
1b8ec87a 4637 if (!rdev->ops->dump_mpath) {
eec60b03 4638 err = -EOPNOTSUPP;
bba95fef
JB		 4639 goto out_err;
4640 }
4641
97990a06 4642 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4643 err = -EOPNOTSUPP;
0448b5fc 4644 goto out_err;
eec60b03
JM		 4645 }
4646
bba95fef 4647 while (1) {
1b8ec87a 4648 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4649 next_hop, &pinfo);
bba95fef 4650 if (err == -ENOENT)
2ec600d6 4651 break;
bba95fef 4652 if (err)
3b85875a 4653 goto out_err;
2ec600d6 4654
15e47304 4655 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4656 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4657 wdev->netdev, dst, next_hop,
bba95fef
JB		 4658 &pinfo) < 0)
4659 goto out;
2ec600d6 4660
bba95fef 4661 path_idx++;
2ec600d6 4662 }
2ec600d6 4663
2ec600d6 4664
bba95fef 4665 out:
97990a06 4666 cb->args[2] = path_idx;
bba95fef 4667 err = skb->len;
bba95fef 4668 out_err:
1b8ec87a 4669 nl80211_finish_wdev_dump(rdev);
bba95fef 4670 return err;
2ec600d6
LCC		 4671}
4672
4673static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4674{
4c476991 4675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4676 int err;
4c476991 4677 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4678 struct mpath_info pinfo;
4679 struct sk_buff *msg;
4680 u8 *dst = NULL;
4681 u8 next_hop[ETH_ALEN];
4682
4683 memset(&pinfo, 0, sizeof(pinfo));
4684
4685 if (!info->attrs[NL80211_ATTR_MAC])
4686 return -EINVAL;
4687
4688 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4689
4c476991
JB		 4690 if (!rdev->ops->get_mpath)
4691 return -EOPNOTSUPP;
2ec600d6 4692
4c476991
JB		 4693 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4694 return -EOPNOTSUPP;
eec60b03 4695
e35e4d28 4696 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4697 if (err)
4c476991 4698 return err;
2ec600d6 4699
fd2120ca 4700 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4701 if (!msg)
4c476991 4702 return -ENOMEM;
2ec600d6 4703
15e47304 4704 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4705 dev, dst, next_hop, &pinfo) < 0) {
4706 nlmsg_free(msg);
4707 return -ENOBUFS;
4708 }
3b85875a 4709
4c476991 4710 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4711}
4712
4713static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4714{
4c476991
JB		 4715 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4716 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4717 u8 *dst = NULL;
4718 u8 *next_hop = NULL;
4719
4720 if (!info->attrs[NL80211_ATTR_MAC])
4721 return -EINVAL;
4722
4723 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4724 return -EINVAL;
4725
4726 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4727 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4728
4c476991
JB		 4729 if (!rdev->ops->change_mpath)
4730 return -EOPNOTSUPP;
35a8efe1 4731
4c476991
JB		 4732 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4733 return -EOPNOTSUPP;
2ec600d6 4734
e35e4d28 4735 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4736}
4c476991 4737
2ec600d6
LCC		 4738static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4739{
4c476991
JB		 4740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4741 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4742 u8 *dst = NULL;
4743 u8 *next_hop = NULL;
4744
4745 if (!info->attrs[NL80211_ATTR_MAC])
4746 return -EINVAL;
4747
4748 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4749 return -EINVAL;
4750
4751 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4752 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4753
4c476991
JB		 4754 if (!rdev->ops->add_mpath)
4755 return -EOPNOTSUPP;
35a8efe1 4756
4c476991
JB		 4757 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4758 return -EOPNOTSUPP;
2ec600d6 4759
e35e4d28 4760 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4761}
4762
4763static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4764{
4c476991
JB		 4765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4766 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4767 u8 *dst = NULL;
4768
4769 if (info->attrs[NL80211_ATTR_MAC])
4770 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4771
4c476991
JB		 4772 if (!rdev->ops->del_mpath)
4773 return -EOPNOTSUPP;
3b85875a 4774
e35e4d28 4775 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4776}
4777
66be7d2b
HR		 4778static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4779{
4780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4781 int err;
4782 struct net_device *dev = info->user_ptr[1];
4783 struct mpath_info pinfo;
4784 struct sk_buff *msg;
4785 u8 *dst = NULL;
4786 u8 mpp[ETH_ALEN];
4787
4788 memset(&pinfo, 0, sizeof(pinfo));
4789
4790 if (!info->attrs[NL80211_ATTR_MAC])
4791 return -EINVAL;
4792
4793 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4794
4795 if (!rdev->ops->get_mpp)
4796 return -EOPNOTSUPP;
4797
4798 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4799 return -EOPNOTSUPP;
4800
4801 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4802 if (err)
4803 return err;
4804
4805 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4806 if (!msg)
4807 return -ENOMEM;
4808
4809 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4810 dev, dst, mpp, &pinfo) < 0) {
4811 nlmsg_free(msg);
4812 return -ENOBUFS;
4813 }
4814
4815 return genlmsg_reply(msg, info);
4816}
4817
4818static int nl80211_dump_mpp(struct sk_buff *skb,
4819 struct netlink_callback *cb)
4820{
4821 struct mpath_info pinfo;
4822 struct cfg80211_registered_device *rdev;
4823 struct wireless_dev *wdev;
4824 u8 dst[ETH_ALEN];
4825 u8 mpp[ETH_ALEN];
4826 int path_idx = cb->args[2];
4827 int err;
4828
4829 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4830 if (err)
4831 return err;
4832
4833 if (!rdev->ops->dump_mpp) {
4834 err = -EOPNOTSUPP;
4835 goto out_err;
4836 }
4837
4838 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4839 err = -EOPNOTSUPP;
4840 goto out_err;
4841 }
4842
4843 while (1) {
4844 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4845 mpp, &pinfo);
4846 if (err == -ENOENT)
4847 break;
4848 if (err)
4849 goto out_err;
4850
4851 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4852 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4853 wdev->netdev, dst, mpp,
4854 &pinfo) < 0)
4855 goto out;
4856
4857 path_idx++;
4858 }
4859
4860 out:
4861 cb->args[2] = path_idx;
4862 err = skb->len;
4863 out_err:
4864 nl80211_finish_wdev_dump(rdev);
4865 return err;
4866}
4867
9f1ba906
JM		 4868static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4869{
4c476991
JB		 4870 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4871 struct net_device *dev = info->user_ptr[1];
c56589ed 4872 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4873 struct bss_parameters params;
c56589ed 4874 int err;
9f1ba906
JM		 4875
4876 memset(&params, 0, sizeof(params));
4877 /* default to not changing parameters */
4878 params.use_cts_prot = -1;
4879 params.use_short_preamble = -1;
4880 params.use_short_slot_time = -1;
fd8aaaf3 4881 params.ap_isolate = -1;
50b12f59 4882 params.ht_opmode = -1;
53cabad7
JB		 4883 params.p2p_ctwindow = -1;
4884 params.p2p_opp_ps = -1;
9f1ba906
JM		 4885
4886 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4887 params.use_cts_prot =
4888 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4889 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4890 params.use_short_preamble =
4891 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4892 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4893 params.use_short_slot_time =
4894 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4895 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4896 params.basic_rates =
4897 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4898 params.basic_rates_len =
4899 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4900 }
fd8aaaf3
FF		 4901 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4902 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4903 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4904 params.ht_opmode =
4905 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4906
53cabad7
JB		 4907 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4908 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4909 return -EINVAL;
4910 params.p2p_ctwindow =
4911 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4912 if (params.p2p_ctwindow < 0)
4913 return -EINVAL;
4914 if (params.p2p_ctwindow != 0 &&
4915 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4916 return -EINVAL;
4917 }
4918
4919 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4920 u8 tmp;
4921
4922 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4923 return -EINVAL;
4924 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4925 if (tmp > 1)
4926 return -EINVAL;
4927 params.p2p_opp_ps = tmp;
4928 if (params.p2p_opp_ps &&
4929 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4930 return -EINVAL;
4931 }
4932
4c476991
JB		 4933 if (!rdev->ops->change_bss)
4934 return -EOPNOTSUPP;
9f1ba906 4935
074ac8df 4936 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4937 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4938 return -EOPNOTSUPP;
3b85875a 4939
c56589ed
SW		 4940 wdev_lock(wdev);
4941 err = rdev_change_bss(rdev, dev, &params);
4942 wdev_unlock(wdev);
4943
4944 return err;
9f1ba906
JM		 4945}
4946
b54452b0 4947static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4948 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4949 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4950 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4951 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4952 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4953 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4954 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4955};
4956
4957static int parse_reg_rule(struct nlattr *tb[],
4958 struct ieee80211_reg_rule *reg_rule)
4959{
4960 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4961 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4962
4963 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4964 return -EINVAL;
4965 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4966 return -EINVAL;
4967 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4968 return -EINVAL;
b0dfd2ea
JD		 4969 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4970 return -EINVAL;
b2e1b302
LR		 4971 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4972 return -EINVAL;
4973
4974 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4975
4976 freq_range->start_freq_khz =
4977 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4978 freq_range->end_freq_khz =
4979 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4980 freq_range->max_bandwidth_khz =
4981 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4982
4983 power_rule->max_eirp =
4984 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4985
4986 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4987 power_rule->max_antenna_gain =
4988 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4989
089027e5
JD		 4990 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4991 reg_rule->dfs_cac_ms =
4992 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4993
b2e1b302
LR		 4994 return 0;
4995}
4996
4997static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4998{
b2e1b302 4999 char *data = NULL;
05050753 5000 bool is_indoor;
57b5ce07 5001 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 5002 u32 owner_nlportid;
5003
b2e1b302 5004
80778f18
LR		 5005 /*
5006 * You should only get this when cfg80211 hasn't yet initialized
5007 * completely when built-in to the kernel right between the time
5008 * window between nl80211_init() and regulatory_init(), if that is
5009 * even possible.
5010 */
458f4f9e 5011 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 5012 return -EINPROGRESS;
80778f18 5013
57b5ce07
LR		 5014 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5015 user_reg_hint_type =
5016 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5017 else
5018 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5019
5020 switch (user_reg_hint_type) {
5021 case NL80211_USER_REG_HINT_USER:
5022 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5023 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5024 return -EINVAL;
5025
5026 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5027 return regulatory_hint_user(data, user_reg_hint_type);
5028 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5029 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5030 owner_nlportid = info->snd_portid;
5031 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5032 } else {
5033 owner_nlportid = 0;
5034 is_indoor = true;
5035 }
5036
5037 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5038 default:
5039 return -EINVAL;
5040 }
b2e1b302
LR		 5041}
5042
24bdd9f4 5043static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5044 struct genl_info *info)
93da9cc1 5045{
4c476991 5046 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5047 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5048 struct wireless_dev *wdev = dev->ieee80211_ptr;
5049 struct mesh_config cur_params;
5050 int err = 0;
93da9cc1 5051 void *hdr;
5052 struct nlattr *pinfoattr;
5053 struct sk_buff *msg;
5054
29cbe68c
JB		 5055 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5056 return -EOPNOTSUPP;
5057
24bdd9f4 5058 if (!rdev->ops->get_mesh_config)
4c476991 5059 return -EOPNOTSUPP;
f3f92586 5060
29cbe68c
JB		 5061 wdev_lock(wdev);
5062 /* If not connected, get default parameters */
5063 if (!wdev->mesh_id_len)
5064 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5065 else
e35e4d28 5066 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5067 wdev_unlock(wdev);
5068
93da9cc1 5069 if (err)
4c476991 5070 return err;
93da9cc1 5071
5072 /* Draw up a netlink message to send back */
fd2120ca 5073 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5074 if (!msg)
5075 return -ENOMEM;
15e47304 5076 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5077 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5078 if (!hdr)
efe1cf0c 5079 goto out;
24bdd9f4 5080 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5081 if (!pinfoattr)
5082 goto nla_put_failure;
9360ffd1
DM		 5083 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5084 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5085 cur_params.dot11MeshRetryTimeout) ||
5086 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5087 cur_params.dot11MeshConfirmTimeout) ||
5088 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5089 cur_params.dot11MeshHoldingTimeout) ||
5090 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5091 cur_params.dot11MeshMaxPeerLinks) ||
5092 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5093 cur_params.dot11MeshMaxRetries) ||
5094 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5095 cur_params.dot11MeshTTL) ||
5096 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5097 cur_params.element_ttl) ||
5098 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5099 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5100 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5101 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5102 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5103 cur_params.dot11MeshHWMPmaxPREQretries) ||
5104 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5105 cur_params.path_refresh_time) ||
5106 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5107 cur_params.min_discovery_timeout) ||
5108 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5109 cur_params.dot11MeshHWMPactivePathTimeout) ||
5110 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5111 cur_params.dot11MeshHWMPpreqMinInterval) ||
5112 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5113 cur_params.dot11MeshHWMPperrMinInterval) ||
5114 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5115 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5116 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5117 cur_params.dot11MeshHWMPRootMode) ||
5118 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5119 cur_params.dot11MeshHWMPRannInterval) ||
5120 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5121 cur_params.dot11MeshGateAnnouncementProtocol) ||
5122 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5123 cur_params.dot11MeshForwarding) ||
5124 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5125 cur_params.rssi_threshold) ||
5126 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5127 cur_params.ht_opmode) ||
5128 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5129 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5130 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5131 cur_params.dot11MeshHWMProotInterval) ||
5132 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5133 cur_params.dot11MeshHWMPconfirmationInterval) ||
5134 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5135 cur_params.power_mode) ||
5136 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5137 cur_params.dot11MeshAwakeWindowDuration) ||
5138 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5139 cur_params.plink_timeout))
9360ffd1 5140 goto nla_put_failure;
93da9cc1 5141 nla_nest_end(msg, pinfoattr);
5142 genlmsg_end(msg, hdr);
4c476991 5143 return genlmsg_reply(msg, info);
93da9cc1 5144
3b85875a 5145 nla_put_failure:
93da9cc1 5146 genlmsg_cancel(msg, hdr);
efe1cf0c 5147 out:
d080e275 5148 nlmsg_free(msg);
4c476991 5149 return -ENOBUFS;
93da9cc1 5150}
5151
b54452b0 5152static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5153 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5154 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5155 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5156 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5157 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5158 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5159 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5160 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5161 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5162 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5163 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5164 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5165 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5166 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5167 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5168 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5169 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5170 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5171 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5172 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5173 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5174 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5175 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5176 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5177 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5178 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5179 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5180 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5181};
5182
c80d545d
JC		 5183static const struct nla_policy
5184 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5185 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5186 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5187 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5188 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5189 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5190 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5191 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5192 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5193 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5194};
5195
24bdd9f4 5196static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5197 struct mesh_config *cfg,
5198 u32 *mask_out)
93da9cc1 5199{
93da9cc1 5200 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5201 u32 mask = 0;
93da9cc1 5202
ea54fba2
MP		 5203#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5204do { \
5205 if (tb[attr]) { \
5206 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5207 return -EINVAL; \
5208 cfg->param = fn(tb[attr]); \
5209 mask |= (1 << (attr - 1)); \
5210 } \
5211} while (0)
bd90fdcc
JB		 5212
5213
24bdd9f4 5214 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5215 return -EINVAL;
5216 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5217 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5218 nl80211_meshconf_params_policy))
93da9cc1 5219 return -EINVAL;
5220
93da9cc1 5221 /* This makes sure that there aren't more than 32 mesh config
5222 * parameters (otherwise our bitfield scheme would not work.) */
5223 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5224
5225 /* Fill in the params struct */
ea54fba2 5226 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5227 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5228 nla_get_u16);
ea54fba2 5229 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5230 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5231 nla_get_u16);
ea54fba2 5232 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5233 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5234 nla_get_u16);
ea54fba2 5235 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5236 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5237 nla_get_u16);
ea54fba2 5238 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5239 mask, NL80211_MESHCONF_MAX_RETRIES,
5240 nla_get_u8);
ea54fba2 5241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5242 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5243 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5244 mask, NL80211_MESHCONF_ELEMENT_TTL,
5245 nla_get_u8);
ea54fba2 5246 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5247 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5248 nla_get_u8);
ea54fba2
MP		 5249 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5250 1, 255, mask,
a4f606ea
CYY		 5251 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5252 nla_get_u32);
ea54fba2 5253 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5254 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5255 nla_get_u8);
ea54fba2 5256 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5257 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5258 nla_get_u32);
ea54fba2 5259 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5260 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5261 nla_get_u16);
ea54fba2
MP		 5262 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5263 1, 65535, mask,
a4f606ea
CYY		 5264 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5265 nla_get_u32);
93da9cc1 5266 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5267 1, 65535, mask,
5268 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5269 nla_get_u16);
dca7e943 5270 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5271 1, 65535, mask,
5272 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5273 nla_get_u16);
93da9cc1 5274 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5275 dot11MeshHWMPnetDiameterTraversalTime,
5276 1, 65535, mask,
a4f606ea
CYY		 5277 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5278 nla_get_u16);
ea54fba2
MP		 5279 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5280 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5281 nla_get_u8);
5282 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5283 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5284 nla_get_u16);
63c5723b 5285 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5286 dot11MeshGateAnnouncementProtocol, 0, 1,
5287 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5288 nla_get_u8);
ea54fba2 5289 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5290 mask, NL80211_MESHCONF_FORWARDING,
5291 nla_get_u8);
83374fe9 5292 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5293 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5294 nla_get_s32);
ea54fba2 5295 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5296 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5297 nla_get_u16);
5298 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5299 1, 65535, mask,
ac1073a6
CYY		 5300 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5301 nla_get_u32);
ea54fba2 5302 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5303 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5304 nla_get_u16);
5305 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5306 dot11MeshHWMPconfirmationInterval,
5307 1, 65535, mask,
728b19e5 5308 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5309 nla_get_u16);
3b1c5a53
MP		 5310 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5311 NL80211_MESH_POWER_ACTIVE,
5312 NL80211_MESH_POWER_MAX,
5313 mask, NL80211_MESHCONF_POWER_MODE,
5314 nla_get_u32);
5315 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5316 0, 65535, mask,
5317 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
31f909a2 5318 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538
CT		 5319 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5320 nla_get_u32);
bd90fdcc
JB		 5321 if (mask_out)
5322 *mask_out = mask;
c80d545d 5323
bd90fdcc
JB		 5324 return 0;
5325
5326#undef FILL_IN_MESH_PARAM_IF_SET
5327}
5328
c80d545d
JC		 5329static int nl80211_parse_mesh_setup(struct genl_info *info,
5330 struct mesh_setup *setup)
5331{
bb2798d4 5332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5333 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5334
5335 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5336 return -EINVAL;
5337 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5338 info->attrs[NL80211_ATTR_MESH_SETUP],
5339 nl80211_mesh_setup_params_policy))
5340 return -EINVAL;
5341
d299a1f2
JC		 5342 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5343 setup->sync_method =
5344 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5345 IEEE80211_SYNC_METHOD_VENDOR :
5346 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5347
c80d545d
JC		 5348 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5349 setup->path_sel_proto =
5350 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5351 IEEE80211_PATH_PROTOCOL_VENDOR :
5352 IEEE80211_PATH_PROTOCOL_HWMP;
5353
5354 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5355 setup->path_metric =
5356 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5357 IEEE80211_PATH_METRIC_VENDOR :
5358 IEEE80211_PATH_METRIC_AIRTIME;
5359
581a8b0f
JC		 5360
5361 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5362 struct nlattr *ieattr =
581a8b0f 5363 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5364 if (!is_valid_ie_attr(ieattr))
5365 return -EINVAL;
581a8b0f
JC		 5366 setup->ie = nla_data(ieattr);
5367 setup->ie_len = nla_len(ieattr);
c80d545d 5368 }
bb2798d4
TP		 5369 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5370 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5371 return -EINVAL;
5372 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5373 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5374 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5375 if (setup->is_secure)
5376 setup->user_mpm = true;
c80d545d 5377
6e16d90b
CT		 5378 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5379 if (!setup->user_mpm)
5380 return -EINVAL;
5381 setup->auth_id =
5382 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5383 }
5384
c80d545d
JC		 5385 return 0;
5386}
5387
24bdd9f4 5388static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5389 struct genl_info *info)
bd90fdcc
JB		 5390{
5391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5392 struct net_device *dev = info->user_ptr[1];
29cbe68c 5393 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5394 struct mesh_config cfg;
5395 u32 mask;
5396 int err;
5397
29cbe68c
JB		 5398 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5399 return -EOPNOTSUPP;
5400
24bdd9f4 5401 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5402 return -EOPNOTSUPP;
5403
24bdd9f4 5404 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5405 if (err)
5406 return err;
5407
29cbe68c
JB		 5408 wdev_lock(wdev);
5409 if (!wdev->mesh_id_len)
5410 err = -ENOLINK;
5411
5412 if (!err)
e35e4d28 5413 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5414
5415 wdev_unlock(wdev);
5416
5417 return err;
93da9cc1 5418}
5419
ad30ca2c
AN		 5420static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5421 struct sk_buff *msg)
f130347c 5422{
f130347c
LR		 5423 struct nlattr *nl_reg_rules;
5424 unsigned int i;
f130347c 5425
458f4f9e
JB		 5426 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5427 (regdom->dfs_region &&
5428 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5429 goto nla_put_failure;
458f4f9e 5430
f130347c
LR		 5431 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5432 if (!nl_reg_rules)
ad30ca2c 5433 goto nla_put_failure;
f130347c 5434
458f4f9e 5435 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5436 struct nlattr *nl_reg_rule;
5437 const struct ieee80211_reg_rule *reg_rule;
5438 const struct ieee80211_freq_range *freq_range;
5439 const struct ieee80211_power_rule *power_rule;
97524820 5440 unsigned int max_bandwidth_khz;
f130347c 5441
458f4f9e 5442 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5443 freq_range = &reg_rule->freq_range;
5444 power_rule = &reg_rule->power_rule;
5445
5446 nl_reg_rule = nla_nest_start(msg, i);
5447 if (!nl_reg_rule)
ad30ca2c 5448 goto nla_put_failure;
f130347c 5449
97524820
JD		 5450 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5451 if (!max_bandwidth_khz)
5452 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5453 reg_rule);
5454
9360ffd1
DM		 5455 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5456 reg_rule->flags) ||
5457 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5458 freq_range->start_freq_khz) ||
5459 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5460 freq_range->end_freq_khz) ||
5461 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5462 max_bandwidth_khz) ||
9360ffd1
DM		 5463 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5464 power_rule->max_antenna_gain) ||
5465 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5466 power_rule->max_eirp) ||
5467 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5468 reg_rule->dfs_cac_ms))
ad30ca2c 5469 goto nla_put_failure;
f130347c
LR		 5470
5471 nla_nest_end(msg, nl_reg_rule);
5472 }
5473
5474 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5475 return 0;
5476
5477nla_put_failure:
5478 return -EMSGSIZE;
5479}
5480
5481static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5482{
5483 const struct ieee80211_regdomain *regdom = NULL;
5484 struct cfg80211_registered_device *rdev;
5485 struct wiphy *wiphy = NULL;
5486 struct sk_buff *msg;
5487 void *hdr;
5488
5489 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5490 if (!msg)
5491 return -ENOBUFS;
5492
5493 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5494 NL80211_CMD_GET_REG);
5495 if (!hdr)
5496 goto put_failure;
5497
5498 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5499 bool self_managed;
5500
ad30ca2c
AN		 5501 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5502 if (IS_ERR(rdev)) {
5503 nlmsg_free(msg);
5504 return PTR_ERR(rdev);
5505 }
5506
5507 wiphy = &rdev->wiphy;
1bdd716c
AN		 5508 self_managed = wiphy->regulatory_flags &
5509 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5510 regdom = get_wiphy_regdom(wiphy);
5511
1bdd716c
AN		 5512 /* a self-managed-reg device must have a private regdom */
5513 if (WARN_ON(!regdom && self_managed)) {
5514 nlmsg_free(msg);
5515 return -EINVAL;
5516 }
5517
ad30ca2c
AN		 5518 if (regdom &&
5519 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5520 goto nla_put_failure;
5521 }
5522
5523 if (!wiphy && reg_last_request_cell_base() &&
5524 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5525 NL80211_USER_REG_HINT_CELL_BASE))
5526 goto nla_put_failure;
5527
5528 rcu_read_lock();
5529
5530 if (!regdom)
5531 regdom = rcu_dereference(cfg80211_regdomain);
5532
5533 if (nl80211_put_regdom(regdom, msg))
5534 goto nla_put_failure_rcu;
5535
5536 rcu_read_unlock();
f130347c
LR		 5537
5538 genlmsg_end(msg, hdr);
5fe231e8 5539 return genlmsg_reply(msg, info);
f130347c 5540
458f4f9e
JB		 5541nla_put_failure_rcu:
5542 rcu_read_unlock();
f130347c
LR		 5543nla_put_failure:
5544 genlmsg_cancel(msg, hdr);
efe1cf0c 5545put_failure:
d080e275 5546 nlmsg_free(msg);
5fe231e8 5547 return -EMSGSIZE;
f130347c
LR		 5548}
5549
ad30ca2c
AN		 5550static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5551 u32 seq, int flags, struct wiphy *wiphy,
5552 const struct ieee80211_regdomain *regdom)
5553{
5554 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5555 NL80211_CMD_GET_REG);
5556
5557 if (!hdr)
5558 return -1;
5559
5560 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5561
5562 if (nl80211_put_regdom(regdom, msg))
5563 goto nla_put_failure;
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 if (wiphy &&
5571 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5572 goto nla_put_failure;
5573
1bdd716c
AN		 5574 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5575 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5576 goto nla_put_failure;
5577
053c095a
JB		 5578 genlmsg_end(msg, hdr);
5579 return 0;
ad30ca2c
AN		 5580
5581nla_put_failure:
5582 genlmsg_cancel(msg, hdr);
5583 return -EMSGSIZE;
5584}
5585
5586static int nl80211_get_reg_dump(struct sk_buff *skb,
5587 struct netlink_callback *cb)
5588{
5589 const struct ieee80211_regdomain *regdom = NULL;
5590 struct cfg80211_registered_device *rdev;
5591 int err, reg_idx, start = cb->args[2];
5592
5593 rtnl_lock();
5594
5595 if (cfg80211_regdomain && start == 0) {
5596 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5597 NLM_F_MULTI, NULL,
5598 rtnl_dereference(cfg80211_regdomain));
5599 if (err < 0)
5600 goto out_err;
5601 }
5602
5603 /* the global regdom is idx 0 */
5604 reg_idx = 1;
5605 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5606 regdom = get_wiphy_regdom(&rdev->wiphy);
5607 if (!regdom)
5608 continue;
5609
5610 if (++reg_idx <= start)
5611 continue;
5612
5613 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5614 NLM_F_MULTI, &rdev->wiphy, regdom);
5615 if (err < 0) {
5616 reg_idx--;
5617 break;
5618 }
5619 }
5620
5621 cb->args[2] = reg_idx;
5622 err = skb->len;
5623out_err:
5624 rtnl_unlock();
5625 return err;
5626}
5627
b2e1b302
LR		 5628static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5629{
5630 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5631 struct nlattr *nl_reg_rule;
ea372c54
JB		 5632 char *alpha2;
5633 int rem_reg_rules, r;
b2e1b302 5634 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5635 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5636 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5637
5638 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5639 return -EINVAL;
5640
5641 if (!info->attrs[NL80211_ATTR_REG_RULES])
5642 return -EINVAL;
5643
5644 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5645
8b60b078
LR		 5646 if (info->attrs[NL80211_ATTR_DFS_REGION])
5647 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5648
b2e1b302 5649 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5650 rem_reg_rules) {
b2e1b302
LR		 5651 num_rules++;
5652 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5653 return -EINVAL;
b2e1b302
LR		 5654 }
5655
e438768f
LR		 5656 if (!reg_is_valid_request(alpha2))
5657 return -EINVAL;
5658
b2e1b302 5659 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5660 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5661
5662 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5663 if (!rd)
5664 return -ENOMEM;
b2e1b302
LR		 5665
5666 rd->n_reg_rules = num_rules;
5667 rd->alpha2[0] = alpha2[0];
5668 rd->alpha2[1] = alpha2[1];
5669
8b60b078
LR		 5670 /*
5671 * Disable DFS master mode if the DFS region was
5672 * not supported or known on this kernel.
5673 */
5674 if (reg_supported_dfs_region(dfs_region))
5675 rd->dfs_region = dfs_region;
5676
b2e1b302 5677 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5678 rem_reg_rules) {
ae811e21
JB		 5679 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5680 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5681 reg_rule_policy);
5682 if (r)
5683 goto bad_reg;
b2e1b302
LR		 5684 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5685 if (r)
5686 goto bad_reg;
5687
5688 rule_idx++;
5689
d0e18f83
LR		 5690 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5691 r = -EINVAL;
b2e1b302 5692 goto bad_reg;
d0e18f83 5693 }
b2e1b302
LR		 5694 }
5695
c37722bd 5696 r = set_regdom(rd, REGD_SOURCE_CRDA);
6913b49a 5697 /* set_regdom took ownership */
1a919318 5698 rd = NULL;
b2e1b302 5699
d2372b31 5700 bad_reg:
b2e1b302 5701 kfree(rd);
d0e18f83 5702 return r;
b2e1b302
LR		 5703}
5704
83f5e2cf
JB		 5705static int validate_scan_freqs(struct nlattr *freqs)
5706{
5707 struct nlattr *attr1, *attr2;
5708 int n_channels = 0, tmp1, tmp2;
5709
5710 nla_for_each_nested(attr1, freqs, tmp1) {
5711 n_channels++;
5712 /*
5713 * Some hardware has a limited channel list for
5714 * scanning, and it is pretty much nonsensical
5715 * to scan for a channel twice, so disallow that
5716 * and don't require drivers to check that the
5717 * channel list they get isn't longer than what
5718 * they can scan, as long as they can scan all
5719 * the channels they registered at once.
5720 */
5721 nla_for_each_nested(attr2, freqs, tmp2)
5722 if (attr1 != attr2 &&
5723 nla_get_u32(attr1) == nla_get_u32(attr2))
5724 return 0;
5725 }
5726
5727 return n_channels;
5728}
5729
ad2b26ab
JB		 5730static int nl80211_parse_random_mac(struct nlattr **attrs,
5731 u8 *mac_addr, u8 *mac_addr_mask)
5732{
5733 int i;
5734
5735 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 5736 eth_zero_addr(mac_addr);
5737 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 5738 mac_addr[0] = 0x2;
5739 mac_addr_mask[0] = 0x3;
5740
5741 return 0;
5742 }
5743
5744 /* need both or none */
5745 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5746 return -EINVAL;
5747
5748 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5749 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5750
5751 /* don't allow or configure an mcast address */
5752 if (!is_multicast_ether_addr(mac_addr_mask) ||
5753 is_multicast_ether_addr(mac_addr))
5754 return -EINVAL;
5755
5756 /*
5757 * allow users to pass a MAC address that has bits set outside
5758 * of the mask, but don't bother drivers with having to deal
5759 * with such bits
5760 */
5761 for (i = 0; i < ETH_ALEN; i++)
5762 mac_addr[i] &= mac_addr_mask[i];
5763
5764 return 0;
5765}
5766
2a519311
JB		 5767static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5768{
4c476991 5769 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5770 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5771 struct cfg80211_scan_request *request;
2a519311
JB		 5772 struct nlattr *attr;
5773 struct wiphy *wiphy;
83f5e2cf 5774 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5775 size_t ie_len;
2a519311 5776
f4a11bb0
JB		 5777 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5778 return -EINVAL;
5779
79c97e97 5780 wiphy = &rdev->wiphy;
2a519311 5781
4c476991
JB		 5782 if (!rdev->ops->scan)
5783 return -EOPNOTSUPP;
2a519311 5784
f9d15d16 5785 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5786 err = -EBUSY;
5787 goto unlock;
5788 }
2a519311
JB		 5789
5790 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5791 n_channels = validate_scan_freqs(
5792 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5793 if (!n_channels) {
5794 err = -EINVAL;
5795 goto unlock;
5796 }
2a519311 5797 } else {
bdfbec2d 5798 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5799 }
5800
5801 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5802 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5803 n_ssids++;
5804
f9f47529
JB		 5805 if (n_ssids > wiphy->max_scan_ssids) {
5806 err = -EINVAL;
5807 goto unlock;
5808 }
2a519311 5809
70692ad2
JM		 5810 if (info->attrs[NL80211_ATTR_IE])
5811 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5812 else
5813 ie_len = 0;
5814
f9f47529
JB		 5815 if (ie_len > wiphy->max_scan_ie_len) {
5816 err = -EINVAL;
5817 goto unlock;
5818 }
18a83659 5819
2a519311 5820 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5821 + sizeof(*request->ssids) * n_ssids
5822 + sizeof(*request->channels) * n_channels
70692ad2 5823 + ie_len, GFP_KERNEL);
f9f47529
JB		 5824 if (!request) {
5825 err = -ENOMEM;
5826 goto unlock;
5827 }
2a519311 5828
2a519311 5829 if (n_ssids)
5ba63533 5830 request->ssids = (void *)&request->channels[n_channels];
2a519311 5831 request->n_ssids = n_ssids;
70692ad2 5832 if (ie_len) {
13874e4b 5833 if (n_ssids)
70692ad2
JM		 5834 request->ie = (void *)(request->ssids + n_ssids);
5835 else
5836 request->ie = (void *)(request->channels + n_channels);
5837 }
2a519311 5838
584991dc 5839 i = 0;
2a519311
JB		 5840 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5841 /* user specified, bail out if channel not found */
2a519311 5842 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5843 struct ieee80211_channel *chan;
5844
5845 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5846
5847 if (!chan) {
2a519311
JB		 5848 err = -EINVAL;
5849 goto out_free;
5850 }
584991dc
JB		 5851
5852 /* ignore disabled channels */
5853 if (chan->flags & IEEE80211_CHAN_DISABLED)
5854 continue;
5855
5856 request->channels[i] = chan;
2a519311
JB		 5857 i++;
5858 }
5859 } else {
34850ab2
JB		 5860 enum ieee80211_band band;
5861
2a519311 5862 /* all channels */
2a519311
JB		 5863 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5864 int j;
5865 if (!wiphy->bands[band])
5866 continue;
5867 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5868 struct ieee80211_channel *chan;
5869
5870 chan = &wiphy->bands[band]->channels[j];
5871
5872 if (chan->flags & IEEE80211_CHAN_DISABLED)
5873 continue;
5874
5875 request->channels[i] = chan;
2a519311
JB		 5876 i++;
5877 }
5878 }
5879 }
5880
584991dc
JB		 5881 if (!i) {
5882 err = -EINVAL;
5883 goto out_free;
5884 }
5885
5886 request->n_channels = i;
5887
2a519311 5888 i = 0;
13874e4b 5889 if (n_ssids) {
2a519311 5890 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5891 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5892 err = -EINVAL;
5893 goto out_free;
5894 }
57a27e1d 5895 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5896 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5897 i++;
5898 }
5899 }
5900
70692ad2
JM		 5901 if (info->attrs[NL80211_ATTR_IE]) {
5902 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5903 memcpy((void *)request->ie,
5904 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5905 request->ie_len);
5906 }
5907
34850ab2 5908 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5909 if (wiphy->bands[i])
5910 request->rates[i] =
5911 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5912
5913 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5914 nla_for_each_nested(attr,
5915 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5916 tmp) {
5917 enum ieee80211_band band = nla_type(attr);
5918
84404623 5919 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5920 err = -EINVAL;
5921 goto out_free;
5922 }
1b09cd82
FF		 5923
5924 if (!wiphy->bands[band])
5925 continue;
5926
34850ab2
JB		 5927 err = ieee80211_get_ratemask(wiphy->bands[band],
5928 nla_data(attr),
5929 nla_len(attr),
5930 &request->rates[band]);
5931 if (err)
5932 goto out_free;
5933 }
5934 }
5935
46856bbf 5936 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5937 request->flags = nla_get_u32(
5938 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5939 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5940 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5941 err = -EOPNOTSUPP;
5942 goto out_free;
5943 }
ad2b26ab
JB		 5944
5945 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5946 if (!(wiphy->features &
5947 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5948 err = -EOPNOTSUPP;
5949 goto out_free;
5950 }
5951
5952 if (wdev->current_bss) {
5953 err = -EOPNOTSUPP;
5954 goto out_free;
5955 }
5956
5957 err = nl80211_parse_random_mac(info->attrs,
5958 request->mac_addr,
5959 request->mac_addr_mask);
5960 if (err)
5961 goto out_free;
5962 }
46856bbf 5963 }
ed473771 5964
e9f935e3
RM		 5965 request->no_cck =
5966 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5967
fd014284 5968 request->wdev = wdev;
79c97e97 5969 request->wiphy = &rdev->wiphy;
15d6030b 5970 request->scan_start = jiffies;
2a519311 5971
79c97e97 5972 rdev->scan_req = request;
e35e4d28 5973 err = rdev_scan(rdev, request);
2a519311 5974
463d0183 5975 if (!err) {
fd014284
JB		 5976 nl80211_send_scan_start(rdev, wdev);
5977 if (wdev->netdev)
5978 dev_hold(wdev->netdev);
4c476991 5979 } else {
2a519311 5980 out_free:
79c97e97 5981 rdev->scan_req = NULL;
2a519311
JB		 5982 kfree(request);
5983 }
3b85875a 5984
f9f47529 5985 unlock:
2a519311
JB		 5986 return err;
5987}
5988
3b06d277
AS		 5989static int
5990nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
5991 struct cfg80211_sched_scan_request *request,
5992 struct nlattr **attrs)
5993{
5994 int tmp, err, i = 0;
5995 struct nlattr *attr;
5996
5997 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
5998 u32 interval;
5999
6000 /*
6001 * If scan plans are not specified,
6002 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6003 * case one scan plan will be set with the specified scan
6004 * interval and infinite number of iterations.
6005 */
6006 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6007 return -EINVAL;
6008
6009 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6010 if (!interval)
6011 return -EINVAL;
6012
6013 request->scan_plans[0].interval =
6014 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6015 if (!request->scan_plans[0].interval)
6016 return -EINVAL;
6017
6018 if (request->scan_plans[0].interval >
6019 wiphy->max_sched_scan_plan_interval)
6020 request->scan_plans[0].interval =
6021 wiphy->max_sched_scan_plan_interval;
6022
6023 return 0;
6024 }
6025
6026 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6027 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6028
6029 if (WARN_ON(i >= n_plans))
6030 return -EINVAL;
6031
6032 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6033 nla_data(attr), nla_len(attr),
6034 nl80211_plan_policy);
6035 if (err)
6036 return err;
6037
6038 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6039 return -EINVAL;
6040
6041 request->scan_plans[i].interval =
6042 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6043 if (!request->scan_plans[i].interval ||
6044 request->scan_plans[i].interval >
6045 wiphy->max_sched_scan_plan_interval)
6046 return -EINVAL;
6047
6048 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6049 request->scan_plans[i].iterations =
6050 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6051 if (!request->scan_plans[i].iterations ||
6052 (request->scan_plans[i].iterations >
6053 wiphy->max_sched_scan_plan_iterations))
6054 return -EINVAL;
6055 } else if (i < n_plans - 1) {
6056 /*
6057 * All scan plans but the last one must specify
6058 * a finite number of iterations
6059 */
6060 return -EINVAL;
6061 }
6062
6063 i++;
6064 }
6065
6066 /*
6067 * The last scan plan must not specify the number of
6068 * iterations, it is supposed to run infinitely
6069 */
6070 if (request->scan_plans[n_plans - 1].iterations)
6071 return -EINVAL;
6072
6073 return 0;
6074}
6075
256da02d 6076static struct cfg80211_sched_scan_request *
ad2b26ab 6077nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6078 struct nlattr **attrs)
807f8a8c
LC		 6079{
6080 struct cfg80211_sched_scan_request *request;
807f8a8c 6081 struct nlattr *attr;
3b06d277 6082 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
807f8a8c
LC		 6083 enum ieee80211_band band;
6084 size_t ie_len;
a1f1c21c 6085 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6086 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6087
256da02d
LC		 6088 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6089 return ERR_PTR(-EINVAL);
807f8a8c 6090
256da02d 6091 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6092 n_channels = validate_scan_freqs(
256da02d 6093 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6094 if (!n_channels)
256da02d 6095 return ERR_PTR(-EINVAL);
807f8a8c 6096 } else {
bdfbec2d 6097 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6098 }
6099
256da02d
LC		 6100 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6101 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6102 tmp)
6103 n_ssids++;
6104
93b6aa69 6105 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6106 return ERR_PTR(-EINVAL);
807f8a8c 6107
ea73cbce
JB		 6108 /*
6109 * First, count the number of 'real' matchsets. Due to an issue with
6110 * the old implementation, matchsets containing only the RSSI attribute
6111 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6112 * RSSI for all matchsets, rather than their own matchset for reporting
6113 * all APs with a strong RSSI. This is needed to be compatible with
6114 * older userspace that treated a matchset with only the RSSI as the
6115 * global RSSI for all other matchsets - if there are other matchsets.
6116 */
256da02d 6117 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6118 nla_for_each_nested(attr,
256da02d 6119 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6120 tmp) {
6121 struct nlattr *rssi;
6122
6123 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6124 nla_data(attr), nla_len(attr),
6125 nl80211_match_policy);
6126 if (err)
256da02d 6127 return ERR_PTR(err);
ea73cbce
JB		 6128 /* add other standalone attributes here */
6129 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6130 n_match_sets++;
6131 continue;
6132 }
6133 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6134 if (rssi)
6135 default_match_rssi = nla_get_s32(rssi);
6136 }
6137 }
6138
6139 /* However, if there's no other matchset, add the RSSI one */
6140 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6141 n_match_sets = 1;
a1f1c21c
LC		 6142
6143 if (n_match_sets > wiphy->max_match_sets)
256da02d 6144 return ERR_PTR(-EINVAL);
a1f1c21c 6145
256da02d
LC		 6146 if (attrs[NL80211_ATTR_IE])
6147 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6148 else
6149 ie_len = 0;
6150
5a865bad 6151 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6152 return ERR_PTR(-EINVAL);
c10841ca 6153
3b06d277
AS		 6154 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6155 /*
6156 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6157 * each scan plan already specifies its own interval
6158 */
6159 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6160 return ERR_PTR(-EINVAL);
6161
6162 nla_for_each_nested(attr,
6163 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6164 n_plans++;
6165 } else {
6166 /*
6167 * The scan interval attribute is kept for backward
6168 * compatibility. If no scan plans are specified and sched scan
6169 * interval is specified, one scan plan will be set with this
6170 * scan interval and infinite number of iterations.
6171 */
6172 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6173 return ERR_PTR(-EINVAL);
6174
6175 n_plans = 1;
6176 }
6177
6178 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6179 return ERR_PTR(-EINVAL);
6180
807f8a8c 6181 request = kzalloc(sizeof(*request)
a2cd43c5 6182 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6183 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6184 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6185 + sizeof(*request->channels) * n_channels
807f8a8c 6186 + ie_len, GFP_KERNEL);
256da02d
LC		 6187 if (!request)
6188 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6189
6190 if (n_ssids)
6191 request->ssids = (void *)&request->channels[n_channels];
6192 request->n_ssids = n_ssids;
6193 if (ie_len) {
13874e4b 6194 if (n_ssids)
807f8a8c
LC		 6195 request->ie = (void *)(request->ssids + n_ssids);
6196 else
6197 request->ie = (void *)(request->channels + n_channels);
6198 }
6199
a1f1c21c
LC		 6200 if (n_match_sets) {
6201 if (request->ie)
6202 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6203 else if (n_ssids)
a1f1c21c
LC		 6204 request->match_sets =
6205 (void *)(request->ssids + n_ssids);
6206 else
6207 request->match_sets =
6208 (void *)(request->channels + n_channels);
6209 }
6210 request->n_match_sets = n_match_sets;
6211
3b06d277
AS		 6212 if (n_match_sets)
6213 request->scan_plans = (void *)(request->match_sets +
6214 n_match_sets);
6215 else if (request->ie)
6216 request->scan_plans = (void *)(request->ie + ie_len);
6217 else if (n_ssids)
6218 request->scan_plans = (void *)(request->ssids + n_ssids);
6219 else
6220 request->scan_plans = (void *)(request->channels + n_channels);
6221
6222 request->n_scan_plans = n_plans;
6223
807f8a8c 6224 i = 0;
256da02d 6225 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6226 /* user specified, bail out if channel not found */
6227 nla_for_each_nested(attr,
256da02d 6228 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6229 tmp) {
6230 struct ieee80211_channel *chan;
6231
6232 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6233
6234 if (!chan) {
6235 err = -EINVAL;
6236 goto out_free;
6237 }
6238
6239 /* ignore disabled channels */
6240 if (chan->flags & IEEE80211_CHAN_DISABLED)
6241 continue;
6242
6243 request->channels[i] = chan;
6244 i++;
6245 }
6246 } else {
6247 /* all channels */
6248 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6249 int j;
6250 if (!wiphy->bands[band])
6251 continue;
6252 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6253 struct ieee80211_channel *chan;
6254
6255 chan = &wiphy->bands[band]->channels[j];
6256
6257 if (chan->flags & IEEE80211_CHAN_DISABLED)
6258 continue;
6259
6260 request->channels[i] = chan;
6261 i++;
6262 }
6263 }
6264 }
6265
6266 if (!i) {
6267 err = -EINVAL;
6268 goto out_free;
6269 }
6270
6271 request->n_channels = i;
6272
6273 i = 0;
13874e4b 6274 if (n_ssids) {
256da02d 6275 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6276 tmp) {
57a27e1d 6277 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6278 err = -EINVAL;
6279 goto out_free;
6280 }
57a27e1d 6281 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6282 memcpy(request->ssids[i].ssid, nla_data(attr),
6283 nla_len(attr));
807f8a8c
LC		 6284 i++;
6285 }
6286 }
6287
a1f1c21c 6288 i = 0;
256da02d 6289 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6290 nla_for_each_nested(attr,
256da02d 6291 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6292 tmp) {
88e920b4 6293 struct nlattr *ssid, *rssi;
a1f1c21c 6294
ae811e21
JB		 6295 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6296 nla_data(attr), nla_len(attr),
6297 nl80211_match_policy);
6298 if (err)
6299 goto out_free;
4a4ab0d7 6300 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6301 if (ssid) {
ea73cbce
JB		 6302 if (WARN_ON(i >= n_match_sets)) {
6303 /* this indicates a programming error,
6304 * the loop above should have verified
6305 * things properly
6306 */
6307 err = -EINVAL;
6308 goto out_free;
6309 }
6310
a1f1c21c
LC		 6311 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6312 err = -EINVAL;
6313 goto out_free;
6314 }
6315 memcpy(request->match_sets[i].ssid.ssid,
6316 nla_data(ssid), nla_len(ssid));
6317 request->match_sets[i].ssid.ssid_len =
6318 nla_len(ssid);
ea73cbce
JB		 6319 /* special attribute - old implemenation w/a */
6320 request->match_sets[i].rssi_thold =
6321 default_match_rssi;
6322 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6323 if (rssi)
6324 request->match_sets[i].rssi_thold =
6325 nla_get_s32(rssi);
a1f1c21c
LC		 6326 }
6327 i++;
6328 }
ea73cbce
JB		 6329
6330 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6331 if (i == 0 && n_match_sets)
ea73cbce
JB		 6332 request->match_sets[0].rssi_thold = default_match_rssi;
6333
6334 request->min_rssi_thold = INT_MAX;
6335 for (i = 0; i < n_match_sets; i++)
6336 request->min_rssi_thold =
6337 min(request->match_sets[i].rssi_thold,
6338 request->min_rssi_thold);
6339 } else {
6340 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6341 }
6342
9900e484
JB		 6343 if (ie_len) {
6344 request->ie_len = ie_len;
807f8a8c 6345 memcpy((void *)request->ie,
256da02d 6346 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6347 request->ie_len);
6348 }
6349
256da02d 6350 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6351 request->flags = nla_get_u32(
256da02d 6352 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6353 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6354 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6355 err = -EOPNOTSUPP;
6356 goto out_free;
6357 }
ad2b26ab
JB		 6358
6359 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6360 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6361
6362 if (!wdev) /* must be net-detect */
6363 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6364
6365 if (!(wiphy->features & flg)) {
6366 err = -EOPNOTSUPP;
6367 goto out_free;
6368 }
6369
6370 if (wdev && wdev->current_bss) {
6371 err = -EOPNOTSUPP;
6372 goto out_free;
6373 }
6374
6375 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6376 request->mac_addr_mask);
6377 if (err)
6378 goto out_free;
6379 }
46856bbf 6380 }
ed473771 6381
9c748934
LC		 6382 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6383 request->delay =
6384 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6385
3b06d277
AS		 6386 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6387 if (err)
6388 goto out_free;
6389
15d6030b 6390 request->scan_start = jiffies;
807f8a8c 6391
256da02d 6392 return request;
807f8a8c
LC		 6393
6394out_free:
6395 kfree(request);
256da02d
LC		 6396 return ERR_PTR(err);
6397}
6398
6399static int nl80211_start_sched_scan(struct sk_buff *skb,
6400 struct genl_info *info)
6401{
6402 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6403 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6404 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6405 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6406 int err;
6407
6408 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6409 !rdev->ops->sched_scan_start)
6410 return -EOPNOTSUPP;
6411
6412 if (rdev->sched_scan_req)
6413 return -EINPROGRESS;
6414
31a60ed1
JR		 6415 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6416 info->attrs);
6417
6418 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6419 if (err)
6420 goto out_err;
6421
31a60ed1 6422 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6423 if (err)
6424 goto out_free;
6425
31a60ed1
JR		 6426 sched_scan_req->dev = dev;
6427 sched_scan_req->wiphy = &rdev->wiphy;
6428
93a1e86c
JR		 6429 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6430 sched_scan_req->owner_nlportid = info->snd_portid;
6431
31a60ed1 6432 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6433
6434 nl80211_send_sched_scan(rdev, dev,
6435 NL80211_CMD_START_SCHED_SCAN);
6436 return 0;
6437
6438out_free:
31a60ed1 6439 kfree(sched_scan_req);
256da02d 6440out_err:
807f8a8c
LC		 6441 return err;
6442}
6443
6444static int nl80211_stop_sched_scan(struct sk_buff *skb,
6445 struct genl_info *info)
6446{
6447 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6448
6449 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6450 !rdev->ops->sched_scan_stop)
6451 return -EOPNOTSUPP;
6452
5fe231e8 6453 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6454}
6455
04f39047
SW		 6456static int nl80211_start_radar_detection(struct sk_buff *skb,
6457 struct genl_info *info)
6458{
6459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6460 struct net_device *dev = info->user_ptr[1];
6461 struct wireless_dev *wdev = dev->ieee80211_ptr;
6462 struct cfg80211_chan_def chandef;
55f7435c 6463 enum nl80211_dfs_regions dfs_region;
31559f35 6464 unsigned int cac_time_ms;
04f39047
SW		 6465 int err;
6466
55f7435c
LR		 6467 dfs_region = reg_get_dfs_region(wdev->wiphy);
6468 if (dfs_region == NL80211_DFS_UNSET)
6469 return -EINVAL;
6470
04f39047
SW		 6471 err = nl80211_parse_chandef(rdev, info, &chandef);
6472 if (err)
6473 return err;
6474
ff311bc1
SW		 6475 if (netif_carrier_ok(dev))
6476 return -EBUSY;
6477
04f39047
SW		 6478 if (wdev->cac_started)
6479 return -EBUSY;
6480
2beb6dab 6481 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6482 wdev->iftype);
04f39047
SW		 6483 if (err < 0)
6484 return err;
6485
6486 if (err == 0)
6487 return -EINVAL;
6488
fe7c3a1f 6489 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6490 return -EINVAL;
6491
6492 if (!rdev->ops->start_radar_detection)
6493 return -EOPNOTSUPP;
6494
31559f35
JD		 6495 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6496 if (WARN_ON(!cac_time_ms))
6497 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6498
6499 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6500 cac_time_ms);
04f39047 6501 if (!err) {
9e0e2961 6502 wdev->chandef = chandef;
04f39047
SW		 6503 wdev->cac_started = true;
6504 wdev->cac_start_time = jiffies;
31559f35 6505 wdev->cac_time_ms = cac_time_ms;
04f39047 6506 }
04f39047
SW		 6507 return err;
6508}
6509
16ef1fe2
SW		 6510static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6511{
6512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6513 struct net_device *dev = info->user_ptr[1];
6514 struct wireless_dev *wdev = dev->ieee80211_ptr;
6515 struct cfg80211_csa_settings params;
6516 /* csa_attrs is defined static to avoid waste of stack size - this
6517 * function is called under RTNL lock, so this should not be a problem.
6518 */
6519 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6520 int err;
ee4bc9e7 6521 bool need_new_beacon = false;
9a774c78 6522 int len, i;
252e07ca 6523 u32 cs_count;
16ef1fe2
SW		 6524
6525 if (!rdev->ops->channel_switch ||
6526 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6527 return -EOPNOTSUPP;
6528
ee4bc9e7
SW		 6529 switch (dev->ieee80211_ptr->iftype) {
6530 case NL80211_IFTYPE_AP:
6531 case NL80211_IFTYPE_P2P_GO:
6532 need_new_beacon = true;
6533
6534 /* useless if AP is not running */
6535 if (!wdev->beacon_interval)
1ff79dfa 6536 return -ENOTCONN;
ee4bc9e7
SW		 6537 break;
6538 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6539 if (!wdev->ssid_len)
6540 return -ENOTCONN;
6541 break;
c6da674a 6542 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6543 if (!wdev->mesh_id_len)
6544 return -ENOTCONN;
ee4bc9e7
SW		 6545 break;
6546 default:
16ef1fe2 6547 return -EOPNOTSUPP;
ee4bc9e7 6548 }
16ef1fe2
SW		 6549
6550 memset(&params, 0, sizeof(params));
6551
6552 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6553 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6554 return -EINVAL;
6555
6556 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6557 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6558 return -EINVAL;
6559
252e07ca
LC		 6560 /* Even though the attribute is u32, the specification says
6561 * u8, so let's make sure we don't overflow.
6562 */
6563 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6564 if (cs_count > 255)
6565 return -EINVAL;
6566
6567 params.count = cs_count;
16ef1fe2 6568
ee4bc9e7
SW		 6569 if (!need_new_beacon)
6570 goto skip_beacons;
6571
16ef1fe2
SW		 6572 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6573 if (err)
6574 return err;
6575
6576 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6577 info->attrs[NL80211_ATTR_CSA_IES],
6578 nl80211_policy);
6579 if (err)
6580 return err;
6581
6582 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6583 if (err)
6584 return err;
6585
6586 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6587 return -EINVAL;
6588
9a774c78
AO		 6589 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6590 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6591 return -EINVAL;
6592
9a774c78
AO		 6593 params.n_counter_offsets_beacon = len / sizeof(u16);
6594 if (rdev->wiphy.max_num_csa_counters &&
6595 (params.n_counter_offsets_beacon >
6596 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6597 return -EINVAL;
6598
9a774c78
AO		 6599 params.counter_offsets_beacon =
6600 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6601
6602 /* sanity checks - counters should fit and be the same */
6603 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6604 u16 offset = params.counter_offsets_beacon[i];
6605
6606 if (offset >= params.beacon_csa.tail_len)
6607 return -EINVAL;
6608
6609 if (params.beacon_csa.tail[offset] != params.count)
6610 return -EINVAL;
6611 }
6612
16ef1fe2 6613 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6614 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6615 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6616 return -EINVAL;
6617
9a774c78
AO		 6618 params.n_counter_offsets_presp = len / sizeof(u16);
6619 if (rdev->wiphy.max_num_csa_counters &&
6620 (params.n_counter_offsets_beacon >
6621 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6622 return -EINVAL;
9a774c78
AO		 6623
6624 params.counter_offsets_presp =
6625 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6626
6627 /* sanity checks - counters should fit and be the same */
6628 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6629 u16 offset = params.counter_offsets_presp[i];
6630
6631 if (offset >= params.beacon_csa.probe_resp_len)
6632 return -EINVAL;
6633
6634 if (params.beacon_csa.probe_resp[offset] !=
6635 params.count)
6636 return -EINVAL;
6637 }
16ef1fe2
SW		 6638 }
6639
ee4bc9e7 6640skip_beacons:
16ef1fe2
SW		 6641 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6642 if (err)
6643 return err;
6644
923b352f
AN		 6645 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
6646 wdev->iftype))
16ef1fe2
SW		 6647 return -EINVAL;
6648
2beb6dab
LC		 6649 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6650 &params.chandef,
6651 wdev->iftype);
6652 if (err < 0)
6653 return err;
6654
dcc6c2f5 6655 if (err > 0)
2beb6dab 6656 params.radar_required = true;
16ef1fe2 6657
16ef1fe2
SW		 6658 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6659 params.block_tx = true;
6660
c56589ed
SW		 6661 wdev_lock(wdev);
6662 err = rdev_channel_switch(rdev, dev, &params);
6663 wdev_unlock(wdev);
6664
6665 return err;
16ef1fe2
SW		 6666}
6667
9720bb3a
JB		 6668static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6669 u32 seq, int flags,
2a519311 6670 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6671 struct wireless_dev *wdev,
6672 struct cfg80211_internal_bss *intbss)
2a519311 6673{
48ab905d 6674 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6675 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6676 void *hdr;
6677 struct nlattr *bss;
48ab905d
JB		 6678
6679 ASSERT_WDEV_LOCK(wdev);
2a519311 6680
15e47304 6681 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6682 NL80211_CMD_NEW_SCAN_RESULTS);
6683 if (!hdr)
6684 return -1;
6685
9720bb3a
JB		 6686 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6687
97990a06
JB		 6688 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6689 goto nla_put_failure;
6690 if (wdev->netdev &&
9360ffd1
DM		 6691 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6692 goto nla_put_failure;
97990a06
JB		 6693 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6694 goto nla_put_failure;
2a519311
JB		 6695
6696 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6697 if (!bss)
6698 goto nla_put_failure;
9360ffd1 6699 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6700 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6701 goto nla_put_failure;
9caf0364
JB		 6702
6703 rcu_read_lock();
0e227084
JB		 6704 /* indicate whether we have probe response data or not */
6705 if (rcu_access_pointer(res->proberesp_ies) &&
6706 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6707 goto fail_unlock_rcu;
6708
6709 /* this pointer prefers to be pointed to probe response data
6710 * but is always valid
6711 */
9caf0364 6712 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6713 if (ies) {
6714 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6715 goto fail_unlock_rcu;
8cef2c9d
JB		 6716 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6717 ies->len, ies->data))
6718 goto fail_unlock_rcu;
9caf0364 6719 }
0e227084
JB		 6720
6721 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6722 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6723 if (ies && ies->from_beacon) {
6724 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6725 goto fail_unlock_rcu;
6726 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6727 ies->len, ies->data))
6728 goto fail_unlock_rcu;
9caf0364
JB		 6729 }
6730 rcu_read_unlock();
6731
9360ffd1
DM		 6732 if (res->beacon_interval &&
6733 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6734 goto nla_put_failure;
6735 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6736 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6737 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6738 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6739 jiffies_to_msecs(jiffies - intbss->ts)))
6740 goto nla_put_failure;
2a519311 6741
6e19bc4b
DS		 6742 if (intbss->ts_boottime &&
6743 nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
6744 intbss->ts_boottime))
6745 goto nla_put_failure;
6746
77965c97 6747 switch (rdev->wiphy.signal_type) {
2a519311 6748 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6749 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6750 goto nla_put_failure;
2a519311
JB		 6751 break;
6752 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6753 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6754 goto nla_put_failure;
2a519311
JB		 6755 break;
6756 default:
6757 break;
6758 }
6759
48ab905d 6760 switch (wdev->iftype) {
074ac8df 6761 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6762 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6763 if (intbss == wdev->current_bss &&
6764 nla_put_u32(msg, NL80211_BSS_STATUS,
6765 NL80211_BSS_STATUS_ASSOCIATED))
6766 goto nla_put_failure;
48ab905d
JB		 6767 break;
6768 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6769 if (intbss == wdev->current_bss &&
6770 nla_put_u32(msg, NL80211_BSS_STATUS,
6771 NL80211_BSS_STATUS_IBSS_JOINED))
6772 goto nla_put_failure;
48ab905d
JB		 6773 break;
6774 default:
6775 break;
6776 }
6777
2a519311
JB		 6778 nla_nest_end(msg, bss);
6779
053c095a
JB		 6780 genlmsg_end(msg, hdr);
6781 return 0;
2a519311 6782
8cef2c9d
JB		 6783 fail_unlock_rcu:
6784 rcu_read_unlock();
2a519311
JB		 6785 nla_put_failure:
6786 genlmsg_cancel(msg, hdr);
6787 return -EMSGSIZE;
6788}
6789
97990a06 6790static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6791{
48ab905d 6792 struct cfg80211_registered_device *rdev;
2a519311 6793 struct cfg80211_internal_bss *scan;
48ab905d 6794 struct wireless_dev *wdev;
97990a06 6795 int start = cb->args[2], idx = 0;
2a519311
JB		 6796 int err;
6797
97990a06 6798 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6799 if (err)
6800 return err;
2a519311 6801
48ab905d
JB		 6802 wdev_lock(wdev);
6803 spin_lock_bh(&rdev->bss_lock);
6804 cfg80211_bss_expire(rdev);
6805
9720bb3a
JB		 6806 cb->seq = rdev->bss_generation;
6807
48ab905d 6808 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6809 if (++idx <= start)
6810 continue;
9720bb3a 6811 if (nl80211_send_bss(skb, cb,
2a519311 6812 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6813 rdev, wdev, scan) < 0) {
2a519311 6814 idx--;
67748893 6815 break;
2a519311
JB		 6816 }
6817 }
6818
48ab905d
JB		 6819 spin_unlock_bh(&rdev->bss_lock);
6820 wdev_unlock(wdev);
2a519311 6821
97990a06
JB		 6822 cb->args[2] = idx;
6823 nl80211_finish_wdev_dump(rdev);
2a519311 6824
67748893 6825 return skb->len;
2a519311
JB		 6826}
6827
15e47304 6828static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 6829 int flags, struct net_device *dev,
6830 bool allow_radio_stats,
6831 struct survey_info *survey)
61fa713c
HS		 6832{
6833 void *hdr;
6834 struct nlattr *infoattr;
6835
11f78ac3
JB		 6836 /* skip radio stats if userspace didn't request them */
6837 if (!survey->channel && !allow_radio_stats)
6838 return 0;
6839
15e47304 6840 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6841 NL80211_CMD_NEW_SURVEY_RESULTS);
6842 if (!hdr)
6843 return -ENOMEM;
6844
9360ffd1
DM		 6845 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6846 goto nla_put_failure;
61fa713c
HS		 6847
6848 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6849 if (!infoattr)
6850 goto nla_put_failure;
6851
11f78ac3
JB		 6852 if (survey->channel &&
6853 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 6854 survey->channel->center_freq))
6855 goto nla_put_failure;
6856
6857 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6858 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6859 goto nla_put_failure;
6860 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6861 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6862 goto nla_put_failure;
4ed20beb
JB		 6863 if ((survey->filled & SURVEY_INFO_TIME) &&
6864 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6865 survey->time))
9360ffd1 6866 goto nla_put_failure;
4ed20beb
JB		 6867 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6868 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6869 survey->time_busy))
9360ffd1 6870 goto nla_put_failure;
4ed20beb
JB		 6871 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6872 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6873 survey->time_ext_busy))
9360ffd1 6874 goto nla_put_failure;
4ed20beb
JB		 6875 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6876 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6877 survey->time_rx))
9360ffd1 6878 goto nla_put_failure;
4ed20beb
JB		 6879 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6880 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6881 survey->time_tx))
9360ffd1 6882 goto nla_put_failure;
052536ab
JB		 6883 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6884 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6885 survey->time_scan))
6886 goto nla_put_failure;
61fa713c
HS		 6887
6888 nla_nest_end(msg, infoattr);
6889
053c095a
JB		 6890 genlmsg_end(msg, hdr);
6891 return 0;
61fa713c
HS		 6892
6893 nla_put_failure:
6894 genlmsg_cancel(msg, hdr);
6895 return -EMSGSIZE;
6896}
6897
11f78ac3 6898static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 6899{
6900 struct survey_info survey;
1b8ec87a 6901 struct cfg80211_registered_device *rdev;
97990a06
JB		 6902 struct wireless_dev *wdev;
6903 int survey_idx = cb->args[2];
61fa713c 6904 int res;
11f78ac3 6905 bool radio_stats;
61fa713c 6906
1b8ec87a 6907 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6908 if (res)
6909 return res;
61fa713c 6910
11f78ac3
JB		 6911 /* prepare_wdev_dump parsed the attributes */
6912 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6913
97990a06
JB		 6914 if (!wdev->netdev) {
6915 res = -EINVAL;
6916 goto out_err;
6917 }
6918
1b8ec87a 6919 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6920 res = -EOPNOTSUPP;
6921 goto out_err;
6922 }
6923
6924 while (1) {
1b8ec87a 6925 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6926 if (res == -ENOENT)
6927 break;
6928 if (res)
6929 goto out_err;
6930
11f78ac3
JB		 6931 /* don't send disabled channels, but do send non-channel data */
6932 if (survey.channel &&
6933 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6934 survey_idx++;
6935 continue;
6936 }
6937
61fa713c 6938 if (nl80211_send_survey(skb,
15e47304 6939 NETLINK_CB(cb->skb).portid,
61fa713c 6940 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 6941 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 6942 goto out;
6943 survey_idx++;
6944 }
6945
6946 out:
97990a06 6947 cb->args[2] = survey_idx;
61fa713c
HS		 6948 res = skb->len;
6949 out_err:
1b8ec87a 6950 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6951 return res;
6952}
6953
b23aa676
SO		 6954static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6955{
6956 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6957 NL80211_WPA_VERSION_2));
6958}
6959
636a5d36
JM		 6960static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6961{
4c476991
JB		 6962 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6963 struct net_device *dev = info->user_ptr[1];
19957bb3 6964 struct ieee80211_channel *chan;
e39e5b5e
JM		 6965 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6966 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6967 enum nl80211_auth_type auth_type;
fffd0934 6968 struct key_parse key;
d5cdfacb 6969 bool local_state_change;
636a5d36 6970
f4a11bb0
JB		 6971 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6972 return -EINVAL;
6973
6974 if (!info->attrs[NL80211_ATTR_MAC])
6975 return -EINVAL;
6976
1778092e
JM		 6977 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6978 return -EINVAL;
6979
19957bb3
JB		 6980 if (!info->attrs[NL80211_ATTR_SSID])
6981 return -EINVAL;
6982
6983 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6984 return -EINVAL;
6985
fffd0934
JB		 6986 err = nl80211_parse_key(info, &key);
6987 if (err)
6988 return err;
6989
6990 if (key.idx >= 0) {
e31b8213
JB		 6991 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6992 return -EINVAL;
fffd0934
JB		 6993 if (!key.p.key || !key.p.key_len)
6994 return -EINVAL;
6995 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6996 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6997 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6998 key.p.key_len != WLAN_KEY_LEN_WEP104))
6999 return -EINVAL;
7000 if (key.idx > 4)
7001 return -EINVAL;
7002 } else {
7003 key.p.key_len = 0;
7004 key.p.key = NULL;
7005 }
7006
afea0b7a
JB		 7007 if (key.idx >= 0) {
7008 int i;
7009 bool ok = false;
7010 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7011 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7012 ok = true;
7013 break;
7014 }
7015 }
4c476991
JB		 7016 if (!ok)
7017 return -EINVAL;
afea0b7a
JB		 7018 }
7019
4c476991
JB		 7020 if (!rdev->ops->auth)
7021 return -EOPNOTSUPP;
636a5d36 7022
074ac8df 7023 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7024 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7025 return -EOPNOTSUPP;
eec60b03 7026
19957bb3 7027 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7028 chan = nl80211_get_valid_chan(&rdev->wiphy,
7029 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7030 if (!chan)
4c476991 7031 return -EINVAL;
636a5d36 7032
19957bb3
JB		 7033 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7034 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7035
7036 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7037 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7038 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7039 }
7040
19957bb3 7041 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7042 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7043 return -EINVAL;
636a5d36 7044
e39e5b5e
JM		 7045 if (auth_type == NL80211_AUTHTYPE_SAE &&
7046 !info->attrs[NL80211_ATTR_SAE_DATA])
7047 return -EINVAL;
7048
7049 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7050 if (auth_type != NL80211_AUTHTYPE_SAE)
7051 return -EINVAL;
7052 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7053 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7054 /* need to include at least Auth Transaction and Status Code */
7055 if (sae_data_len < 4)
7056 return -EINVAL;
7057 }
7058
d5cdfacb
JM		 7059 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7060
95de817b
JB		 7061 /*
7062 * Since we no longer track auth state, ignore
7063 * requests to only change local state.
7064 */
7065 if (local_state_change)
7066 return 0;
7067
91bf9b26
JB		 7068 wdev_lock(dev->ieee80211_ptr);
7069 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7070 ssid, ssid_len, ie, ie_len,
7071 key.p.key, key.p.key_len, key.idx,
7072 sae_data, sae_data_len);
7073 wdev_unlock(dev->ieee80211_ptr);
7074 return err;
636a5d36
JM		 7075}
7076
c0692b8f
JB		 7077static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7078 struct genl_info *info,
3dc27d25
JB		 7079 struct cfg80211_crypto_settings *settings,
7080 int cipher_limit)
b23aa676 7081{
c0b2bbd8
JB		 7082 memset(settings, 0, sizeof(*settings));
7083
b23aa676
SO		 7084 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7085
c0692b8f
JB		 7086 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7087 u16 proto;
7088 proto = nla_get_u16(
7089 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7090 settings->control_port_ethertype = cpu_to_be16(proto);
7091 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7092 proto != ETH_P_PAE)
7093 return -EINVAL;
7094 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7095 settings->control_port_no_encrypt = true;
7096 } else
7097 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7098
b23aa676
SO		 7099 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7100 void *data;
7101 int len, i;
7102
7103 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7104 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7105 settings->n_ciphers_pairwise = len / sizeof(u32);
7106
7107 if (len % sizeof(u32))
7108 return -EINVAL;
7109
3dc27d25 7110 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7111 return -EINVAL;
7112
7113 memcpy(settings->ciphers_pairwise, data, len);
7114
7115 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7116 if (!cfg80211_supported_cipher_suite(
7117 &rdev->wiphy,
b23aa676
SO		 7118 settings->ciphers_pairwise[i]))
7119 return -EINVAL;
7120 }
7121
7122 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7123 settings->cipher_group =
7124 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7125 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7126 settings->cipher_group))
b23aa676
SO		 7127 return -EINVAL;
7128 }
7129
7130 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7131 settings->wpa_versions =
7132 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7133 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7134 return -EINVAL;
7135 }
7136
7137 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7138 void *data;
6d30240e 7139 int len;
b23aa676
SO		 7140
7141 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7142 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7143 settings->n_akm_suites = len / sizeof(u32);
7144
7145 if (len % sizeof(u32))
7146 return -EINVAL;
7147
1b9ca027
JM		 7148 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7149 return -EINVAL;
7150
b23aa676 7151 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7152 }
7153
7154 return 0;
7155}
7156
636a5d36
JM		 7157static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7158{
4c476991
JB		 7159 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7160 struct net_device *dev = info->user_ptr[1];
f444de05 7161 struct ieee80211_channel *chan;
f62fab73
JB		 7162 struct cfg80211_assoc_request req = {};
7163 const u8 *bssid, *ssid;
7164 int err, ssid_len = 0;
636a5d36 7165
f4a11bb0
JB		 7166 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7167 return -EINVAL;
7168
7169 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7170 !info->attrs[NL80211_ATTR_SSID] ||
7171 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7172 return -EINVAL;
7173
4c476991
JB		 7174 if (!rdev->ops->assoc)
7175 return -EOPNOTSUPP;
636a5d36 7176
074ac8df 7177 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7178 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7179 return -EOPNOTSUPP;
eec60b03 7180
19957bb3 7181 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7182
664834de
JM		 7183 chan = nl80211_get_valid_chan(&rdev->wiphy,
7184 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7185 if (!chan)
4c476991 7186 return -EINVAL;
636a5d36 7187
19957bb3
JB		 7188 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7189 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7190
7191 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7192 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7193 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7194 }
7195
dc6382ce 7196 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7197 enum nl80211_mfp mfp =
dc6382ce 7198 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7199 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7200 req.use_mfp = true;
4c476991
JB		 7201 else if (mfp != NL80211_MFP_NO)
7202 return -EINVAL;
dc6382ce
JM		 7203 }
7204
3e5d7649 7205 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7206 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7207
7e7c8926 7208 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7209 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7210
7211 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7212 memcpy(&req.ht_capa_mask,
7213 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7214 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7215
7216 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7217 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7218 return -EINVAL;
f62fab73
JB		 7219 memcpy(&req.ht_capa,
7220 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7221 sizeof(req.ht_capa));
7e7c8926
BG		 7222 }
7223
ee2aca34 7224 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7225 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7226
7227 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7228 memcpy(&req.vht_capa_mask,
7229 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7230 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7231
7232 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7233 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7234 return -EINVAL;
f62fab73
JB		 7235 memcpy(&req.vht_capa,
7236 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7237 sizeof(req.vht_capa));
ee2aca34
JB		 7238 }
7239
bab5ab7d
AK		 7240 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7241 if (!(rdev->wiphy.features &
7242 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7243 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7244 return -EINVAL;
7245 req.flags |= ASSOC_REQ_USE_RRM;
7246 }
7247
f62fab73 7248 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7249 if (!err) {
7250 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7251 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7252 ssid, ssid_len, &req);
91bf9b26
JB		 7253 wdev_unlock(dev->ieee80211_ptr);
7254 }
636a5d36 7255
636a5d36
JM		 7256 return err;
7257}
7258
7259static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7260{
4c476991
JB		 7261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7262 struct net_device *dev = info->user_ptr[1];
19957bb3 7263 const u8 *ie = NULL, *bssid;
91bf9b26 7264 int ie_len = 0, err;
19957bb3 7265 u16 reason_code;
d5cdfacb 7266 bool local_state_change;
636a5d36 7267
f4a11bb0
JB		 7268 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7269 return -EINVAL;
7270
7271 if (!info->attrs[NL80211_ATTR_MAC])
7272 return -EINVAL;
7273
7274 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7275 return -EINVAL;
7276
4c476991
JB		 7277 if (!rdev->ops->deauth)
7278 return -EOPNOTSUPP;
636a5d36 7279
074ac8df 7280 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7281 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7282 return -EOPNOTSUPP;
eec60b03 7283
19957bb3 7284 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7285
19957bb3
JB		 7286 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7287 if (reason_code == 0) {
f4a11bb0 7288 /* Reason Code 0 is reserved */
4c476991 7289 return -EINVAL;
255e737e 7290 }
636a5d36
JM		 7291
7292 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7293 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7294 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7295 }
7296
d5cdfacb
JM		 7297 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7298
91bf9b26
JB		 7299 wdev_lock(dev->ieee80211_ptr);
7300 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7301 local_state_change);
7302 wdev_unlock(dev->ieee80211_ptr);
7303 return err;
636a5d36
JM		 7304}
7305
7306static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7307{
4c476991
JB		 7308 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7309 struct net_device *dev = info->user_ptr[1];
19957bb3 7310 const u8 *ie = NULL, *bssid;
91bf9b26 7311 int ie_len = 0, err;
19957bb3 7312 u16 reason_code;
d5cdfacb 7313 bool local_state_change;
636a5d36 7314
f4a11bb0
JB		 7315 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7316 return -EINVAL;
7317
7318 if (!info->attrs[NL80211_ATTR_MAC])
7319 return -EINVAL;
7320
7321 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7322 return -EINVAL;
7323
4c476991
JB		 7324 if (!rdev->ops->disassoc)
7325 return -EOPNOTSUPP;
636a5d36 7326
074ac8df 7327 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7328 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7329 return -EOPNOTSUPP;
eec60b03 7330
19957bb3 7331 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7332
19957bb3
JB		 7333 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7334 if (reason_code == 0) {
f4a11bb0 7335 /* Reason Code 0 is reserved */
4c476991 7336 return -EINVAL;
255e737e 7337 }
636a5d36
JM		 7338
7339 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7340 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7341 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7342 }
7343
d5cdfacb
JM		 7344 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7345
91bf9b26
JB		 7346 wdev_lock(dev->ieee80211_ptr);
7347 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7348 local_state_change);
7349 wdev_unlock(dev->ieee80211_ptr);
7350 return err;
636a5d36
JM		 7351}
7352
dd5b4cc7
FF		 7353static bool
7354nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7355 int mcast_rate[IEEE80211_NUM_BANDS],
7356 int rateval)
7357{
7358 struct wiphy *wiphy = &rdev->wiphy;
7359 bool found = false;
7360 int band, i;
7361
7362 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7363 struct ieee80211_supported_band *sband;
7364
7365 sband = wiphy->bands[band];
7366 if (!sband)
7367 continue;
7368
7369 for (i = 0; i < sband->n_bitrates; i++) {
7370 if (sband->bitrates[i].bitrate == rateval) {
7371 mcast_rate[band] = i + 1;
7372 found = true;
7373 break;
7374 }
7375 }
7376 }
7377
7378 return found;
7379}
7380
04a773ad
JB		 7381static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7382{
4c476991
JB		 7383 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7384 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7385 struct cfg80211_ibss_params ibss;
7386 struct wiphy *wiphy;
fffd0934 7387 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7388 int err;
7389
8e30bc55
JB		 7390 memset(&ibss, 0, sizeof(ibss));
7391
04a773ad
JB		 7392 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7393 return -EINVAL;
7394
683b6d3b 7395 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7396 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7397 return -EINVAL;
7398
8e30bc55
JB		 7399 ibss.beacon_interval = 100;
7400
7401 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7402 ibss.beacon_interval =
7403 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7404 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7405 return -EINVAL;
7406 }
7407
4c476991
JB		 7408 if (!rdev->ops->join_ibss)
7409 return -EOPNOTSUPP;
04a773ad 7410
4c476991
JB		 7411 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7412 return -EOPNOTSUPP;
04a773ad 7413
79c97e97 7414 wiphy = &rdev->wiphy;
04a773ad 7415
39193498 7416 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7417 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7418
7419 if (!is_valid_ether_addr(ibss.bssid))
7420 return -EINVAL;
7421 }
04a773ad
JB		 7422 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7423 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7424
7425 if (info->attrs[NL80211_ATTR_IE]) {
7426 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7427 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7428 }
7429
683b6d3b
JB		 7430 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7431 if (err)
7432 return err;
04a773ad 7433
174e0cd2
IP		 7434 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7435 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7436 return -EINVAL;
7437
2f301ab2 7438 switch (ibss.chandef.width) {
bf372645
SW		 7439 case NL80211_CHAN_WIDTH_5:
7440 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7441 case NL80211_CHAN_WIDTH_20_NOHT:
7442 break;
7443 case NL80211_CHAN_WIDTH_20:
7444 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7445 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7446 return -EINVAL;
7447 break;
7448 case NL80211_CHAN_WIDTH_80:
7449 case NL80211_CHAN_WIDTH_80P80:
7450 case NL80211_CHAN_WIDTH_160:
7451 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7452 return -EINVAL;
7453 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7454 NL80211_EXT_FEATURE_VHT_IBSS))
7455 return -EINVAL;
7456 break;
2f301ab2 7457 default:
c04d6150 7458 return -EINVAL;
2f301ab2 7459 }
db9c64cf 7460
04a773ad 7461 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7462 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7463
fbd2c8dc
TP		 7464 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7465 u8 *rates =
7466 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7467 int n_rates =
7468 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7469 struct ieee80211_supported_band *sband =
683b6d3b 7470 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7471
34850ab2
JB		 7472 err = ieee80211_get_ratemask(sband, rates, n_rates,
7473 &ibss.basic_rates);
7474 if (err)
7475 return err;
fbd2c8dc 7476 }
dd5b4cc7 7477
803768f5
SW		 7478 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7479 memcpy(&ibss.ht_capa_mask,
7480 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7481 sizeof(ibss.ht_capa_mask));
7482
7483 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7484 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7485 return -EINVAL;
7486 memcpy(&ibss.ht_capa,
7487 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7488 sizeof(ibss.ht_capa));
7489 }
7490
dd5b4cc7
FF		 7491 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7492 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7493 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7494 return -EINVAL;
fbd2c8dc 7495
4c476991 7496 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7497 bool no_ht = false;
7498
4c476991 7499 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7500 info->attrs[NL80211_ATTR_KEYS],
7501 &no_ht);
4c476991
JB		 7502 if (IS_ERR(connkeys))
7503 return PTR_ERR(connkeys);
de7044ee 7504
3d9d1d66
JB		 7505 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7506 no_ht) {
de7044ee
SM		 7507 kfree(connkeys);
7508 return -EINVAL;
7509 }
4c476991 7510 }
04a773ad 7511
267335d6
AQ		 7512 ibss.control_port =
7513 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7514
5336fa88
SW		 7515 ibss.userspace_handles_dfs =
7516 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7517
4c476991 7518 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7519 if (err)
b47f610b 7520 kzfree(connkeys);
04a773ad
JB		 7521 return err;
7522}
7523
7524static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7525{
4c476991
JB		 7526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7527 struct net_device *dev = info->user_ptr[1];
04a773ad 7528
4c476991
JB		 7529 if (!rdev->ops->leave_ibss)
7530 return -EOPNOTSUPP;
04a773ad 7531
4c476991
JB		 7532 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7533 return -EOPNOTSUPP;
04a773ad 7534
4c476991 7535 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7536}
7537
f4e583c8
AQ		 7538static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7539{
7540 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7541 struct net_device *dev = info->user_ptr[1];
7542 int mcast_rate[IEEE80211_NUM_BANDS];
7543 u32 nla_rate;
7544 int err;
7545
7546 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7547 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7548 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7549 return -EOPNOTSUPP;
7550
7551 if (!rdev->ops->set_mcast_rate)
7552 return -EOPNOTSUPP;
7553
7554 memset(mcast_rate, 0, sizeof(mcast_rate));
7555
7556 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7557 return -EINVAL;
7558
7559 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7560 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7561 return -EINVAL;
7562
7563 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7564
7565 return err;
7566}
7567
ad7e718c
JB		 7568static struct sk_buff *
7569__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7570 struct wireless_dev *wdev, int approxlen,
7571 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7572 enum nl80211_attrs attr,
7573 const struct nl80211_vendor_cmd_info *info,
7574 gfp_t gfp)
ad7e718c
JB		 7575{
7576 struct sk_buff *skb;
7577 void *hdr;
7578 struct nlattr *data;
7579
7580 skb = nlmsg_new(approxlen + 100, gfp);
7581 if (!skb)
7582 return NULL;
7583
7584 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7585 if (!hdr) {
7586 kfree_skb(skb);
7587 return NULL;
7588 }
7589
7590 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7591 goto nla_put_failure;
567ffc35
JB		 7592
7593 if (info) {
7594 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7595 info->vendor_id))
7596 goto nla_put_failure;
7597 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7598 info->subcmd))
7599 goto nla_put_failure;
7600 }
7601
6c09e791
AK		 7602 if (wdev) {
7603 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7604 wdev_id(wdev)))
7605 goto nla_put_failure;
7606 if (wdev->netdev &&
7607 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7608 wdev->netdev->ifindex))
7609 goto nla_put_failure;
7610 }
7611
ad7e718c
JB		 7612 data = nla_nest_start(skb, attr);
7613
7614 ((void **)skb->cb)[0] = rdev;
7615 ((void **)skb->cb)[1] = hdr;
7616 ((void **)skb->cb)[2] = data;
7617
7618 return skb;
7619
7620 nla_put_failure:
7621 kfree_skb(skb);
7622 return NULL;
7623}
f4e583c8 7624
e03ad6ea 7625struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7626 struct wireless_dev *wdev,
e03ad6ea
JB		 7627 enum nl80211_commands cmd,
7628 enum nl80211_attrs attr,
7629 int vendor_event_idx,
7630 int approxlen, gfp_t gfp)
7631{
f26cbf40 7632 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7633 const struct nl80211_vendor_cmd_info *info;
7634
7635 switch (cmd) {
7636 case NL80211_CMD_TESTMODE:
7637 if (WARN_ON(vendor_event_idx != -1))
7638 return NULL;
7639 info = NULL;
7640 break;
7641 case NL80211_CMD_VENDOR:
7642 if (WARN_ON(vendor_event_idx < 0 ||
7643 vendor_event_idx >= wiphy->n_vendor_events))
7644 return NULL;
7645 info = &wiphy->vendor_events[vendor_event_idx];
7646 break;
7647 default:
7648 WARN_ON(1);
7649 return NULL;
7650 }
7651
6c09e791 7652 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 7653 cmd, attr, info, gfp);
7654}
7655EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7656
7657void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7658{
7659 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7660 void *hdr = ((void **)skb->cb)[1];
7661 struct nlattr *data = ((void **)skb->cb)[2];
7662 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7663
bd8c78e7
JB		 7664 /* clear CB data for netlink core to own from now on */
7665 memset(skb->cb, 0, sizeof(skb->cb));
7666
e03ad6ea
JB		 7667 nla_nest_end(skb, data);
7668 genlmsg_end(skb, hdr);
7669
7670 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7671 mcgrp = NL80211_MCGRP_VENDOR;
7672
7673 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7674 mcgrp, gfp);
7675}
7676EXPORT_SYMBOL(__cfg80211_send_event_skb);
7677
aff89a9b 7678#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7679static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7680{
4c476991 7681 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7682 struct wireless_dev *wdev =
7683 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7684 int err;
7685
fc73f11f
DS		 7686 if (!rdev->ops->testmode_cmd)
7687 return -EOPNOTSUPP;
7688
7689 if (IS_ERR(wdev)) {
7690 err = PTR_ERR(wdev);
7691 if (err != -EINVAL)
7692 return err;
7693 wdev = NULL;
7694 } else if (wdev->wiphy != &rdev->wiphy) {
7695 return -EINVAL;
7696 }
7697
aff89a9b
JB		 7698 if (!info->attrs[NL80211_ATTR_TESTDATA])
7699 return -EINVAL;
7700
ad7e718c 7701 rdev->cur_cmd_info = info;
fc73f11f 7702 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7703 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7704 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7705 rdev->cur_cmd_info = NULL;
aff89a9b 7706
aff89a9b
JB		 7707 return err;
7708}
7709
71063f0e
WYG		 7710static int nl80211_testmode_dump(struct sk_buff *skb,
7711 struct netlink_callback *cb)
7712{
00918d33 7713 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7714 int err;
7715 long phy_idx;
7716 void *data = NULL;
7717 int data_len = 0;
7718
5fe231e8
JB		 7719 rtnl_lock();
7720
71063f0e
WYG		 7721 if (cb->args[0]) {
7722 /*
7723 * 0 is a valid index, but not valid for args[0],
7724 * so we need to offset by 1.
7725 */
7726 phy_idx = cb->args[0] - 1;
7727 } else {
7728 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7729 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7730 nl80211_policy);
7731 if (err)
5fe231e8 7732 goto out_err;
00918d33 7733
2bd7e35d
JB		 7734 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7735 nl80211_fam.attrbuf);
7736 if (IS_ERR(rdev)) {
5fe231e8
JB		 7737 err = PTR_ERR(rdev);
7738 goto out_err;
00918d33 7739 }
2bd7e35d
JB		 7740 phy_idx = rdev->wiphy_idx;
7741 rdev = NULL;
2bd7e35d 7742
71063f0e
WYG		 7743 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7744 cb->args[1] =
7745 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7746 }
7747
7748 if (cb->args[1]) {
7749 data = nla_data((void *)cb->args[1]);
7750 data_len = nla_len((void *)cb->args[1]);
7751 }
7752
00918d33
JB		 7753 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7754 if (!rdev) {
5fe231e8
JB		 7755 err = -ENOENT;
7756 goto out_err;
71063f0e 7757 }
71063f0e 7758
00918d33 7759 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7760 err = -EOPNOTSUPP;
7761 goto out_err;
7762 }
7763
7764 while (1) {
15e47304 7765 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7766 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7767 NL80211_CMD_TESTMODE);
7768 struct nlattr *tmdata;
7769
cb35fba3
DC		 7770 if (!hdr)
7771 break;
7772
9360ffd1 7773 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7774 genlmsg_cancel(skb, hdr);
7775 break;
7776 }
7777
7778 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7779 if (!tmdata) {
7780 genlmsg_cancel(skb, hdr);
7781 break;
7782 }
e35e4d28 7783 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7784 nla_nest_end(skb, tmdata);
7785
7786 if (err == -ENOBUFS || err == -ENOENT) {
7787 genlmsg_cancel(skb, hdr);
7788 break;
7789 } else if (err) {
7790 genlmsg_cancel(skb, hdr);
7791 goto out_err;
7792 }
7793
7794 genlmsg_end(skb, hdr);
7795 }
7796
7797 err = skb->len;
7798 /* see above */
7799 cb->args[0] = phy_idx + 1;
7800 out_err:
5fe231e8 7801 rtnl_unlock();
71063f0e
WYG		 7802 return err;
7803}
aff89a9b
JB		 7804#endif
7805
b23aa676
SO		 7806static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7807{
4c476991
JB		 7808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7809 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7810 struct cfg80211_connect_params connect;
7811 struct wiphy *wiphy;
fffd0934 7812 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7813 int err;
7814
7815 memset(&connect, 0, sizeof(connect));
7816
7817 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7818 return -EINVAL;
7819
7820 if (!info->attrs[NL80211_ATTR_SSID] ||
7821 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7822 return -EINVAL;
7823
7824 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7825 connect.auth_type =
7826 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7827 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7828 NL80211_CMD_CONNECT))
b23aa676
SO		 7829 return -EINVAL;
7830 } else
7831 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7832
7833 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7834
c0692b8f 7835 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7836 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7837 if (err)
7838 return err;
b23aa676 7839
074ac8df 7840 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7841 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7842 return -EOPNOTSUPP;
b23aa676 7843
79c97e97 7844 wiphy = &rdev->wiphy;
b23aa676 7845
4486ea98
BS		 7846 connect.bg_scan_period = -1;
7847 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7848 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7849 connect.bg_scan_period =
7850 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7851 }
7852
b23aa676
SO		 7853 if (info->attrs[NL80211_ATTR_MAC])
7854 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7855 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7856 connect.bssid_hint =
7857 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7858 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7859 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7860
7861 if (info->attrs[NL80211_ATTR_IE]) {
7862 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7863 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7864 }
7865
cee00a95
JM		 7866 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7867 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7868 if (connect.mfp != NL80211_MFP_REQUIRED &&
7869 connect.mfp != NL80211_MFP_NO)
7870 return -EINVAL;
7871 } else {
7872 connect.mfp = NL80211_MFP_NO;
7873 }
7874
b23aa676 7875 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7876 connect.channel = nl80211_get_valid_chan(
7877 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7878 if (!connect.channel)
1df4a510
JM		 7879 return -EINVAL;
7880 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7881 connect.channel_hint = nl80211_get_valid_chan(
7882 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7883 if (!connect.channel_hint)
4c476991 7884 return -EINVAL;
b23aa676
SO		 7885 }
7886
fffd0934
JB		 7887 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7888 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7889 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7890 if (IS_ERR(connkeys))
7891 return PTR_ERR(connkeys);
fffd0934
JB		 7892 }
7893
7e7c8926
BG		 7894 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7895 connect.flags |= ASSOC_REQ_DISABLE_HT;
7896
7897 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7898 memcpy(&connect.ht_capa_mask,
7899 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7900 sizeof(connect.ht_capa_mask));
7901
7902 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7903 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7904 kzfree(connkeys);
7e7c8926 7905 return -EINVAL;
b4e4f47e 7906 }
7e7c8926
BG		 7907 memcpy(&connect.ht_capa,
7908 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7909 sizeof(connect.ht_capa));
7910 }
7911
ee2aca34
JB		 7912 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7913 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7914
7915 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7916 memcpy(&connect.vht_capa_mask,
7917 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7918 sizeof(connect.vht_capa_mask));
7919
7920 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7921 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7922 kzfree(connkeys);
ee2aca34
JB		 7923 return -EINVAL;
7924 }
7925 memcpy(&connect.vht_capa,
7926 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7927 sizeof(connect.vht_capa));
7928 }
7929
bab5ab7d
AK		 7930 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7931 if (!(rdev->wiphy.features &
7932 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7933 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7934 return -EINVAL;
7935 connect.flags |= ASSOC_REQ_USE_RRM;
7936 }
7937
83739b03
JB		 7938 wdev_lock(dev->ieee80211_ptr);
7939 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7940 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7941 if (err)
b47f610b 7942 kzfree(connkeys);
b23aa676
SO		 7943 return err;
7944}
7945
7946static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7947{
4c476991
JB		 7948 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7949 struct net_device *dev = info->user_ptr[1];
b23aa676 7950 u16 reason;
83739b03 7951 int ret;
b23aa676
SO		 7952
7953 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7954 reason = WLAN_REASON_DEAUTH_LEAVING;
7955 else
7956 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7957
7958 if (reason == 0)
7959 return -EINVAL;
7960
074ac8df 7961 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7962 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7963 return -EOPNOTSUPP;
b23aa676 7964
83739b03
JB		 7965 wdev_lock(dev->ieee80211_ptr);
7966 ret = cfg80211_disconnect(rdev, dev, reason, true);
7967 wdev_unlock(dev->ieee80211_ptr);
7968 return ret;
b23aa676
SO		 7969}
7970
463d0183
JB		 7971static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7972{
4c476991 7973 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7974 struct net *net;
7975 int err;
463d0183 7976
4b681c82
VK		 7977 if (info->attrs[NL80211_ATTR_PID]) {
7978 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7979
7980 net = get_net_ns_by_pid(pid);
7981 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
7982 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 7983
4b681c82
VK		 7984 net = get_net_ns_by_fd(fd);
7985 } else {
7986 return -EINVAL;
7987 }
463d0183 7988
4c476991
JB		 7989 if (IS_ERR(net))
7990 return PTR_ERR(net);
463d0183
JB		 7991
7992 err = 0;
7993
7994 /* check if anything to do */
4c476991
JB		 7995 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7996 err = cfg80211_switch_netns(rdev, net);
463d0183 7997
463d0183 7998 put_net(net);
463d0183
JB		 7999 return err;
8000}
8001
67fbb16b
SO		 8002static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8003{
4c476991 8004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8005 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8006 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8007 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8008 struct cfg80211_pmksa pmksa;
8009
8010 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8011
8012 if (!info->attrs[NL80211_ATTR_MAC])
8013 return -EINVAL;
8014
8015 if (!info->attrs[NL80211_ATTR_PMKID])
8016 return -EINVAL;
8017
67fbb16b
SO		 8018 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8019 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8020
074ac8df 8021 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8022 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8023 return -EOPNOTSUPP;
67fbb16b
SO		 8024
8025 switch (info->genlhdr->cmd) {
8026 case NL80211_CMD_SET_PMKSA:
8027 rdev_ops = rdev->ops->set_pmksa;
8028 break;
8029 case NL80211_CMD_DEL_PMKSA:
8030 rdev_ops = rdev->ops->del_pmksa;
8031 break;
8032 default:
8033 WARN_ON(1);
8034 break;
8035 }
8036
4c476991
JB		 8037 if (!rdev_ops)
8038 return -EOPNOTSUPP;
67fbb16b 8039
4c476991 8040 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8041}
8042
8043static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8044{
4c476991
JB		 8045 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8046 struct net_device *dev = info->user_ptr[1];
67fbb16b 8047
074ac8df 8048 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8049 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8050 return -EOPNOTSUPP;
67fbb16b 8051
4c476991
JB		 8052 if (!rdev->ops->flush_pmksa)
8053 return -EOPNOTSUPP;
67fbb16b 8054
e35e4d28 8055 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8056}
8057
109086ce
AN		 8058static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8059{
8060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8061 struct net_device *dev = info->user_ptr[1];
8062 u8 action_code, dialog_token;
df942e7b 8063 u32 peer_capability = 0;
109086ce
AN		 8064 u16 status_code;
8065 u8 *peer;
31fa97c5 8066 bool initiator;
109086ce
AN		 8067
8068 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8069 !rdev->ops->tdls_mgmt)
8070 return -EOPNOTSUPP;
8071
8072 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8073 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8074 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8075 !info->attrs[NL80211_ATTR_IE] ||
8076 !info->attrs[NL80211_ATTR_MAC])
8077 return -EINVAL;
8078
8079 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8080 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8081 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8082 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8083 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8084 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8085 peer_capability =
8086 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8087
e35e4d28 8088 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8089 dialog_token, status_code, peer_capability,
31fa97c5 8090 initiator,
e35e4d28
HG		 8091 nla_data(info->attrs[NL80211_ATTR_IE]),
8092 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8093}
8094
8095static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8096{
8097 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8098 struct net_device *dev = info->user_ptr[1];
8099 enum nl80211_tdls_operation operation;
8100 u8 *peer;
8101
8102 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8103 !rdev->ops->tdls_oper)
8104 return -EOPNOTSUPP;
8105
8106 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8107 !info->attrs[NL80211_ATTR_MAC])
8108 return -EINVAL;
8109
8110 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8111 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8112
e35e4d28 8113 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8114}
8115
9588bbd5
JM		 8116static int nl80211_remain_on_channel(struct sk_buff *skb,
8117 struct genl_info *info)
8118{
4c476991 8119 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8120 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8121 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8122 struct sk_buff *msg;
8123 void *hdr;
8124 u64 cookie;
683b6d3b 8125 u32 duration;
9588bbd5
JM		 8126 int err;
8127
8128 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8129 !info->attrs[NL80211_ATTR_DURATION])
8130 return -EINVAL;
8131
8132 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8133
ebf348fc
JB		 8134 if (!rdev->ops->remain_on_channel ||
8135 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8136 return -EOPNOTSUPP;
8137
9588bbd5 8138 /*
ebf348fc
JB		 8139 * We should be on that channel for at least a minimum amount of
8140 * time (10ms) but no longer than the driver supports.
9588bbd5 8141 */
ebf348fc 8142 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8143 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8144 return -EINVAL;
8145
683b6d3b
JB		 8146 err = nl80211_parse_chandef(rdev, info, &chandef);
8147 if (err)
8148 return err;
9588bbd5
JM		 8149
8150 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8151 if (!msg)
8152 return -ENOMEM;
9588bbd5 8153
15e47304 8154 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8155 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8156 if (!hdr) {
8157 err = -ENOBUFS;
9588bbd5
JM		 8158 goto free_msg;
8159 }
8160
683b6d3b
JB		 8161 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8162 duration, &cookie);
9588bbd5
JM		 8163
8164 if (err)
8165 goto free_msg;
8166
9360ffd1
DM		 8167 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8168 goto nla_put_failure;
9588bbd5
JM		 8169
8170 genlmsg_end(msg, hdr);
4c476991
JB		 8171
8172 return genlmsg_reply(msg, info);
9588bbd5
JM		 8173
8174 nla_put_failure:
8175 err = -ENOBUFS;
8176 free_msg:
8177 nlmsg_free(msg);
9588bbd5
JM		 8178 return err;
8179}
8180
8181static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8182 struct genl_info *info)
8183{
4c476991 8184 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8185 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8186 u64 cookie;
9588bbd5
JM		 8187
8188 if (!info->attrs[NL80211_ATTR_COOKIE])
8189 return -EINVAL;
8190
4c476991
JB		 8191 if (!rdev->ops->cancel_remain_on_channel)
8192 return -EOPNOTSUPP;
9588bbd5 8193
9588bbd5
JM		 8194 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8195
e35e4d28 8196 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8197}
8198
13ae75b1
JM		 8199static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8200 u8 *rates, u8 rates_len)
8201{
8202 u8 i;
8203 u32 mask = 0;
8204
8205 for (i = 0; i < rates_len; i++) {
8206 int rate = (rates[i] & 0x7f) * 5;
8207 int ridx;
8208 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8209 struct ieee80211_rate *srate =
8210 &sband->bitrates[ridx];
8211 if (rate == srate->bitrate) {
8212 mask |= 1 << ridx;
8213 break;
8214 }
8215 }
8216 if (ridx == sband->n_bitrates)
8217 return 0; /* rate not found */
8218 }
8219
8220 return mask;
8221}
8222
24db78c0
SW		 8223static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8224 u8 *rates, u8 rates_len,
8225 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8226{
8227 u8 i;
8228
8229 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8230
8231 for (i = 0; i < rates_len; i++) {
8232 int ridx, rbit;
8233
8234 ridx = rates[i] / 8;
8235 rbit = BIT(rates[i] % 8);
8236
8237 /* check validity */
910570b5 8238 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8239 return false;
8240
8241 /* check availability */
8242 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8243 mcs[ridx] |= rbit;
8244 else
8245 return false;
8246 }
8247
8248 return true;
8249}
8250
204e35a9
JD		 8251static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8252{
8253 u16 mcs_mask = 0;
8254
8255 switch (vht_mcs_map) {
8256 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8257 break;
8258 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8259 mcs_mask = 0x00FF;
8260 break;
8261 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8262 mcs_mask = 0x01FF;
8263 break;
8264 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8265 mcs_mask = 0x03FF;
8266 break;
8267 default:
8268 break;
8269 }
8270
8271 return mcs_mask;
8272}
8273
8274static void vht_build_mcs_mask(u16 vht_mcs_map,
8275 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8276{
8277 u8 nss;
8278
8279 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8280 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8281 vht_mcs_map >>= 2;
8282 }
8283}
8284
8285static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8286 struct nl80211_txrate_vht *txrate,
8287 u16 mcs[NL80211_VHT_NSS_MAX])
8288{
8289 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8290 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8291 u8 i;
8292
8293 if (!sband->vht_cap.vht_supported)
8294 return false;
8295
8296 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8297
8298 /* Build vht_mcs_mask from VHT capabilities */
8299 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8300
8301 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8302 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8303 mcs[i] = txrate->mcs[i];
8304 else
8305 return false;
8306 }
8307
8308 return true;
8309}
8310
b54452b0 8311static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8312 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8313 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8314 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8315 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8316 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8317 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8318};
8319
8320static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8321 struct genl_info *info)
8322{
8323 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8324 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8325 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8326 int rem, i;
8327 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8328 struct nlattr *tx_rates;
8329 struct ieee80211_supported_band *sband;
204e35a9 8330 u16 vht_tx_mcs_map;
13ae75b1 8331
4c476991
JB		 8332 if (!rdev->ops->set_bitrate_mask)
8333 return -EOPNOTSUPP;
13ae75b1
JM		 8334
8335 memset(&mask, 0, sizeof(mask));
8336 /* Default to all rates enabled */
8337 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8338 sband = rdev->wiphy.bands[i];
7869303b
JD		 8339
8340 if (!sband)
8341 continue;
8342
8343 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8344 memcpy(mask.control[i].ht_mcs,
7869303b 8345 sband->ht_cap.mcs.rx_mask,
d1e33e65 8346 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8347
8348 if (!sband->vht_cap.vht_supported)
8349 continue;
8350
8351 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8352 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8353 }
8354
b9243ab0
JD		 8355 /* if no rates are given set it back to the defaults */
8356 if (!info->attrs[NL80211_ATTR_TX_RATES])
8357 goto out;
8358
13ae75b1
JM		 8359 /*
8360 * The nested attribute uses enum nl80211_band as the index. This maps
8361 * directly to the enum ieee80211_band values used in cfg80211.
8362 */
24db78c0 8363 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8364 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8365 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8366 int err;
8367
4c476991
JB		 8368 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8369 return -EINVAL;
13ae75b1 8370 sband = rdev->wiphy.bands[band];
4c476991
JB		 8371 if (sband == NULL)
8372 return -EINVAL;
ae811e21
JB		 8373 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8374 nla_len(tx_rates), nl80211_txattr_policy);
8375 if (err)
8376 return err;
13ae75b1
JM		 8377 if (tb[NL80211_TXRATE_LEGACY]) {
8378 mask.control[band].legacy = rateset_to_mask(
8379 sband,
8380 nla_data(tb[NL80211_TXRATE_LEGACY]),
8381 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8382 if ((mask.control[band].legacy == 0) &&
8383 nla_len(tb[NL80211_TXRATE_LEGACY]))
8384 return -EINVAL;
24db78c0 8385 }
d1e33e65 8386 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8387 if (!ht_rateset_to_mask(
8388 sband,
d1e33e65
JD		 8389 nla_data(tb[NL80211_TXRATE_HT]),
8390 nla_len(tb[NL80211_TXRATE_HT]),
8391 mask.control[band].ht_mcs))
24db78c0
SW		 8392 return -EINVAL;
8393 }
204e35a9
JD		 8394 if (tb[NL80211_TXRATE_VHT]) {
8395 if (!vht_set_mcs_mask(
8396 sband,
8397 nla_data(tb[NL80211_TXRATE_VHT]),
8398 mask.control[band].vht_mcs))
8399 return -EINVAL;
8400 }
0b9323f6
JD		 8401 if (tb[NL80211_TXRATE_GI]) {
8402 mask.control[band].gi =
8403 nla_get_u8(tb[NL80211_TXRATE_GI]);
8404 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8405 return -EINVAL;
8406 }
24db78c0
SW		 8407
8408 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8409 /* don't allow empty legacy rates if HT or VHT
8410 * are not even supported.
8411 */
8412 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8413 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8414 return -EINVAL;
8415
8416 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8417 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8418 goto out;
8419
8420 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8421 if (mask.control[band].vht_mcs[i])
8422 goto out;
24db78c0
SW		 8423
8424 /* legacy and mcs rates may not be both empty */
204e35a9 8425 return -EINVAL;
13ae75b1
JM		 8426 }
8427 }
8428
b9243ab0 8429out:
e35e4d28 8430 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8431}
8432
2e161f78 8433static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8434{
4c476991 8435 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8436 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8437 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8438
8439 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8440 return -EINVAL;
8441
2e161f78
JB		 8442 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8443 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8444
71bbc994
JB		 8445 switch (wdev->iftype) {
8446 case NL80211_IFTYPE_STATION:
8447 case NL80211_IFTYPE_ADHOC:
8448 case NL80211_IFTYPE_P2P_CLIENT:
8449 case NL80211_IFTYPE_AP:
8450 case NL80211_IFTYPE_AP_VLAN:
8451 case NL80211_IFTYPE_MESH_POINT:
8452 case NL80211_IFTYPE_P2P_GO:
98104fde 8453 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8454 break;
8455 default:
4c476991 8456 return -EOPNOTSUPP;
71bbc994 8457 }
026331c4
JM		 8458
8459 /* not much point in registering if we can't reply */
4c476991
JB		 8460 if (!rdev->ops->mgmt_tx)
8461 return -EOPNOTSUPP;
026331c4 8462
15e47304 8463 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8464 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8465 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8466}
8467
2e161f78 8468static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8469{
4c476991 8470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8471 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8472 struct cfg80211_chan_def chandef;
026331c4 8473 int err;
d64d373f 8474 void *hdr = NULL;
026331c4 8475 u64 cookie;
e247bd90 8476 struct sk_buff *msg = NULL;
b176e629
AO		 8477 struct cfg80211_mgmt_tx_params params = {
8478 .dont_wait_for_ack =
8479 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8480 };
026331c4 8481
683b6d3b 8482 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8483 return -EINVAL;
8484
4c476991
JB		 8485 if (!rdev->ops->mgmt_tx)
8486 return -EOPNOTSUPP;
026331c4 8487
71bbc994 8488 switch (wdev->iftype) {
ea141b75
AQ		 8489 case NL80211_IFTYPE_P2P_DEVICE:
8490 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8491 return -EINVAL;
71bbc994
JB		 8492 case NL80211_IFTYPE_STATION:
8493 case NL80211_IFTYPE_ADHOC:
8494 case NL80211_IFTYPE_P2P_CLIENT:
8495 case NL80211_IFTYPE_AP:
8496 case NL80211_IFTYPE_AP_VLAN:
8497 case NL80211_IFTYPE_MESH_POINT:
8498 case NL80211_IFTYPE_P2P_GO:
8499 break;
8500 default:
4c476991 8501 return -EOPNOTSUPP;
71bbc994 8502 }
026331c4 8503
f7ca38df 8504 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8505 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8506 return -EINVAL;
b176e629 8507 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8508
8509 /*
8510 * We should wait on the channel for at least a minimum amount
8511 * of time (10ms) but no longer than the driver supports.
8512 */
b176e629
AO		 8513 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8514 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8515 return -EINVAL;
8516
f7ca38df
JB		 8517 }
8518
b176e629 8519 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8520
b176e629 8521 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8522 return -EINVAL;
8523
b176e629 8524 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8525
ea141b75
AQ		 8526 /* get the channel if any has been specified, otherwise pass NULL to
8527 * the driver. The latter will use the current one
8528 */
8529 chandef.chan = NULL;
8530 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8531 err = nl80211_parse_chandef(rdev, info, &chandef);
8532 if (err)
8533 return err;
8534 }
8535
b176e629 8536 if (!chandef.chan && params.offchan)
ea141b75 8537 return -EINVAL;
026331c4 8538
34d22ce2
AO		 8539 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8540 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8541
8542 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8543 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8544 int i;
8545
8546 if (len % sizeof(u16))
8547 return -EINVAL;
8548
8549 params.n_csa_offsets = len / sizeof(u16);
8550 params.csa_offsets =
8551 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8552
8553 /* check that all the offsets fit the frame */
8554 for (i = 0; i < params.n_csa_offsets; i++) {
8555 if (params.csa_offsets[i] >= params.len)
8556 return -EINVAL;
8557 }
8558 }
8559
b176e629 8560 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8561 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8562 if (!msg)
8563 return -ENOMEM;
026331c4 8564
15e47304 8565 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8566 NL80211_CMD_FRAME);
cb35fba3
DC		 8567 if (!hdr) {
8568 err = -ENOBUFS;
e247bd90
JB		 8569 goto free_msg;
8570 }
026331c4 8571 }
e247bd90 8572
b176e629
AO		 8573 params.chan = chandef.chan;
8574 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8575 if (err)
8576 goto free_msg;
8577
e247bd90 8578 if (msg) {
9360ffd1
DM		 8579 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8580 goto nla_put_failure;
026331c4 8581
e247bd90
JB		 8582 genlmsg_end(msg, hdr);
8583 return genlmsg_reply(msg, info);
8584 }
8585
8586 return 0;
026331c4
JM		 8587
8588 nla_put_failure:
8589 err = -ENOBUFS;
8590 free_msg:
8591 nlmsg_free(msg);
026331c4
JM		 8592 return err;
8593}
8594
f7ca38df
JB		 8595static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8596{
8597 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8598 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8599 u64 cookie;
8600
8601 if (!info->attrs[NL80211_ATTR_COOKIE])
8602 return -EINVAL;
8603
8604 if (!rdev->ops->mgmt_tx_cancel_wait)
8605 return -EOPNOTSUPP;
8606
71bbc994
JB		 8607 switch (wdev->iftype) {
8608 case NL80211_IFTYPE_STATION:
8609 case NL80211_IFTYPE_ADHOC:
8610 case NL80211_IFTYPE_P2P_CLIENT:
8611 case NL80211_IFTYPE_AP:
8612 case NL80211_IFTYPE_AP_VLAN:
8613 case NL80211_IFTYPE_P2P_GO:
98104fde 8614 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8615 break;
8616 default:
f7ca38df 8617 return -EOPNOTSUPP;
71bbc994 8618 }
f7ca38df
JB		 8619
8620 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8621
e35e4d28 8622 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8623}
8624
ffb9eb3d
KV		 8625static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8626{
4c476991 8627 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8628 struct wireless_dev *wdev;
4c476991 8629 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8630 u8 ps_state;
8631 bool state;
8632 int err;
8633
4c476991
JB		 8634 if (!info->attrs[NL80211_ATTR_PS_STATE])
8635 return -EINVAL;
ffb9eb3d
KV		 8636
8637 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8638
4c476991
JB		 8639 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8640 return -EINVAL;
ffb9eb3d
KV		 8641
8642 wdev = dev->ieee80211_ptr;
8643
4c476991
JB		 8644 if (!rdev->ops->set_power_mgmt)
8645 return -EOPNOTSUPP;
ffb9eb3d
KV		 8646
8647 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8648
8649 if (state == wdev->ps)
4c476991 8650 return 0;
ffb9eb3d 8651
e35e4d28 8652 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8653 if (!err)
8654 wdev->ps = state;
ffb9eb3d
KV		 8655 return err;
8656}
8657
8658static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8659{
4c476991 8660 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8661 enum nl80211_ps_state ps_state;
8662 struct wireless_dev *wdev;
4c476991 8663 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8664 struct sk_buff *msg;
8665 void *hdr;
8666 int err;
8667
ffb9eb3d
KV		 8668 wdev = dev->ieee80211_ptr;
8669
4c476991
JB		 8670 if (!rdev->ops->set_power_mgmt)
8671 return -EOPNOTSUPP;
ffb9eb3d
KV		 8672
8673 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8674 if (!msg)
8675 return -ENOMEM;
ffb9eb3d 8676
15e47304 8677 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8678 NL80211_CMD_GET_POWER_SAVE);
8679 if (!hdr) {
4c476991 8680 err = -ENOBUFS;
ffb9eb3d
KV		 8681 goto free_msg;
8682 }
8683
8684 if (wdev->ps)
8685 ps_state = NL80211_PS_ENABLED;
8686 else
8687 ps_state = NL80211_PS_DISABLED;
8688
9360ffd1
DM		 8689 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8690 goto nla_put_failure;
ffb9eb3d
KV		 8691
8692 genlmsg_end(msg, hdr);
4c476991 8693 return genlmsg_reply(msg, info);
ffb9eb3d 8694
4c476991 8695 nla_put_failure:
ffb9eb3d 8696 err = -ENOBUFS;
4c476991 8697 free_msg:
ffb9eb3d 8698 nlmsg_free(msg);
ffb9eb3d
KV		 8699 return err;
8700}
8701
94e860f1
JB		 8702static const struct nla_policy
8703nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8704 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8705 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8706 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8707 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8708 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8709 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8710};
8711
84f10708 8712static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8713 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8714{
8715 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8716 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8717 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8718
d9d8b019 8719 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8720 return -EINVAL;
8721
84f10708
TP		 8722 if (!rdev->ops->set_cqm_txe_config)
8723 return -EOPNOTSUPP;
8724
8725 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8726 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8727 return -EOPNOTSUPP;
8728
e35e4d28 8729 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8730}
8731
d6dc1a38
JO		 8732static int nl80211_set_cqm_rssi(struct genl_info *info,
8733 s32 threshold, u32 hysteresis)
8734{
4c476991 8735 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8736 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8737 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8738
8739 if (threshold > 0)
8740 return -EINVAL;
8741
1da5fcc8
JB		 8742 /* disabling - hysteresis should also be zero then */
8743 if (threshold == 0)
8744 hysteresis = 0;
d6dc1a38 8745
4c476991
JB		 8746 if (!rdev->ops->set_cqm_rssi_config)
8747 return -EOPNOTSUPP;
d6dc1a38 8748
074ac8df 8749 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8750 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8751 return -EOPNOTSUPP;
d6dc1a38 8752
e35e4d28 8753 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8754}
8755
8756static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8757{
8758 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8759 struct nlattr *cqm;
8760 int err;
8761
8762 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8763 if (!cqm)
8764 return -EINVAL;
d6dc1a38
JO		 8765
8766 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8767 nl80211_attr_cqm_policy);
8768 if (err)
1da5fcc8 8769 return err;
d6dc1a38
JO		 8770
8771 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8772 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8773 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8774 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8775
1da5fcc8
JB		 8776 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8777 }
8778
8779 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8780 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8781 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8782 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8783 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8784 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8785
8786 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8787 }
8788
8789 return -EINVAL;
d6dc1a38
JO		 8790}
8791
6e0bd6c3
RL		 8792static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8793{
8794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8795 struct net_device *dev = info->user_ptr[1];
8796 struct ocb_setup setup = {};
8797 int err;
8798
8799 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8800 if (err)
8801 return err;
8802
8803 return cfg80211_join_ocb(rdev, dev, &setup);
8804}
8805
8806static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8807{
8808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8809 struct net_device *dev = info->user_ptr[1];
8810
8811 return cfg80211_leave_ocb(rdev, dev);
8812}
8813
29cbe68c
JB		 8814static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8815{
8816 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8817 struct net_device *dev = info->user_ptr[1];
8818 struct mesh_config cfg;
c80d545d 8819 struct mesh_setup setup;
29cbe68c
JB		 8820 int err;
8821
8822 /* start with default */
8823 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8824 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8825
24bdd9f4 8826 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8827 /* and parse parameters if given */
24bdd9f4 8828 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8829 if (err)
8830 return err;
8831 }
8832
8833 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8834 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8835 return -EINVAL;
8836
c80d545d
JC		 8837 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8838 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8839
4bb62344
CYY		 8840 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8841 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8842 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8843 return -EINVAL;
8844
9bdbf04d
MP		 8845 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8846 setup.beacon_interval =
8847 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8848 if (setup.beacon_interval < 10 ||
8849 setup.beacon_interval > 10000)
8850 return -EINVAL;
8851 }
8852
8853 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8854 setup.dtim_period =
8855 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8856 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8857 return -EINVAL;
8858 }
8859
c80d545d
JC		 8860 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8861 /* parse additional setup parameters if given */
8862 err = nl80211_parse_mesh_setup(info, &setup);
8863 if (err)
8864 return err;
8865 }
8866
d37bb18a
TP		 8867 if (setup.user_mpm)
8868 cfg.auto_open_plinks = false;
8869
cc1d2806 8870 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8871 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8872 if (err)
8873 return err;
cc1d2806
JB		 8874 } else {
8875 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8876 setup.chandef.chan = NULL;
cc1d2806
JB		 8877 }
8878
ffb3cf30
AN		 8879 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8880 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8881 int n_rates =
8882 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8883 struct ieee80211_supported_band *sband;
8884
8885 if (!setup.chandef.chan)
8886 return -EINVAL;
8887
8888 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8889
8890 err = ieee80211_get_ratemask(sband, rates, n_rates,
8891 &setup.basic_rates);
8892 if (err)
8893 return err;
8894 }
8895
c80d545d 8896 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8897}
8898
8899static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8900{
8901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8902 struct net_device *dev = info->user_ptr[1];
8903
8904 return cfg80211_leave_mesh(rdev, dev);
8905}
8906
dfb89c56 8907#ifdef CONFIG_PM
bb92d199
AK		 8908static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8909 struct cfg80211_registered_device *rdev)
8910{
6abb9cb9 8911 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8912 struct nlattr *nl_pats, *nl_pat;
8913 int i, pat_len;
8914
6abb9cb9 8915 if (!wowlan->n_patterns)
bb92d199
AK		 8916 return 0;
8917
8918 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8919 if (!nl_pats)
8920 return -ENOBUFS;
8921
6abb9cb9 8922 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8923 nl_pat = nla_nest_start(msg, i + 1);
8924 if (!nl_pat)
8925 return -ENOBUFS;
6abb9cb9 8926 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8927 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8928 wowlan->patterns[i].mask) ||
50ac6607
AK		 8929 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8930 wowlan->patterns[i].pattern) ||
8931 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8932 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8933 return -ENOBUFS;
8934 nla_nest_end(msg, nl_pat);
8935 }
8936 nla_nest_end(msg, nl_pats);
8937
8938 return 0;
8939}
8940
2a0e047e
JB		 8941static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8942 struct cfg80211_wowlan_tcp *tcp)
8943{
8944 struct nlattr *nl_tcp;
8945
8946 if (!tcp)
8947 return 0;
8948
8949 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8950 if (!nl_tcp)
8951 return -ENOBUFS;
8952
930345ea
JB		 8953 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8954 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 8955 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8956 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8957 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8958 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8959 tcp->payload_len, tcp->payload) ||
8960 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8961 tcp->data_interval) ||
8962 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8963 tcp->wake_len, tcp->wake_data) ||
8964 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8965 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8966 return -ENOBUFS;
8967
8968 if (tcp->payload_seq.len &&
8969 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8970 sizeof(tcp->payload_seq), &tcp->payload_seq))
8971 return -ENOBUFS;
8972
8973 if (tcp->payload_tok.len &&
8974 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8975 sizeof(tcp->payload_tok) + tcp->tokens_size,
8976 &tcp->payload_tok))
8977 return -ENOBUFS;
8978
e248ad30
JB		 8979 nla_nest_end(msg, nl_tcp);
8980
2a0e047e
JB		 8981 return 0;
8982}
8983
75453ccb
LC		 8984static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8985 struct cfg80211_sched_scan_request *req)
8986{
3b06d277 8987 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 8988 int i;
8989
8990 if (!req)
8991 return 0;
8992
8993 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
8994 if (!nd)
8995 return -ENOBUFS;
8996
3b06d277
AS		 8997 if (req->n_scan_plans == 1 &&
8998 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
8999 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9000 return -ENOBUFS;
9001
21fea567
LC		 9002 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9003 return -ENOBUFS;
9004
75453ccb
LC		 9005 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9006 if (!freqs)
9007 return -ENOBUFS;
9008
9009 for (i = 0; i < req->n_channels; i++)
9010 nla_put_u32(msg, i, req->channels[i]->center_freq);
9011
9012 nla_nest_end(msg, freqs);
9013
9014 if (req->n_match_sets) {
9015 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9016 for (i = 0; i < req->n_match_sets; i++) {
9017 match = nla_nest_start(msg, i);
9018 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9019 req->match_sets[i].ssid.ssid_len,
9020 req->match_sets[i].ssid.ssid);
9021 nla_nest_end(msg, match);
9022 }
9023 nla_nest_end(msg, matches);
9024 }
9025
3b06d277
AS		 9026 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9027 if (!scan_plans)
9028 return -ENOBUFS;
9029
9030 for (i = 0; i < req->n_scan_plans; i++) {
9031 scan_plan = nla_nest_start(msg, i + 1);
9032 if (!scan_plan ||
9033 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9034 req->scan_plans[i].interval) ||
9035 (req->scan_plans[i].iterations &&
9036 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9037 req->scan_plans[i].iterations)))
9038 return -ENOBUFS;
9039 nla_nest_end(msg, scan_plan);
9040 }
9041 nla_nest_end(msg, scan_plans);
9042
75453ccb
LC		 9043 nla_nest_end(msg, nd);
9044
9045 return 0;
9046}
9047
ff1b6e69
JB		 9048static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9049{
9050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9051 struct sk_buff *msg;
9052 void *hdr;
2a0e047e 9053 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9054
964dc9e2 9055 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9056 return -EOPNOTSUPP;
9057
6abb9cb9 9058 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9059 /* adjust size to have room for all the data */
6abb9cb9
JB		 9060 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9061 rdev->wiphy.wowlan_config->tcp->payload_len +
9062 rdev->wiphy.wowlan_config->tcp->wake_len +
9063 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9064 }
9065
9066 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9067 if (!msg)
9068 return -ENOMEM;
9069
15e47304 9070 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9071 NL80211_CMD_GET_WOWLAN);
9072 if (!hdr)
9073 goto nla_put_failure;
9074
6abb9cb9 9075 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9076 struct nlattr *nl_wowlan;
9077
9078 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9079 if (!nl_wowlan)
9080 goto nla_put_failure;
9081
6abb9cb9 9082 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9083 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9084 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9085 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9086 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9087 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9088 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9090 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9091 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9092 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9094 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9096 goto nla_put_failure;
2a0e047e 9097
bb92d199
AK		 9098 if (nl80211_send_wowlan_patterns(msg, rdev))
9099 goto nla_put_failure;
2a0e047e 9100
6abb9cb9
JB		 9101 if (nl80211_send_wowlan_tcp(msg,
9102 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9103 goto nla_put_failure;
75453ccb
LC		 9104
9105 if (nl80211_send_wowlan_nd(
9106 msg,
9107 rdev->wiphy.wowlan_config->nd_config))
9108 goto nla_put_failure;
2a0e047e 9109
ff1b6e69
JB		 9110 nla_nest_end(msg, nl_wowlan);
9111 }
9112
9113 genlmsg_end(msg, hdr);
9114 return genlmsg_reply(msg, info);
9115
9116nla_put_failure:
9117 nlmsg_free(msg);
9118 return -ENOBUFS;
9119}
9120
2a0e047e
JB		 9121static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9122 struct nlattr *attr,
9123 struct cfg80211_wowlan *trig)
9124{
9125 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9126 struct cfg80211_wowlan_tcp *cfg;
9127 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9128 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9129 u32 size;
9130 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9131 int err, port;
9132
964dc9e2 9133 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9134 return -EINVAL;
9135
9136 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9137 nla_data(attr), nla_len(attr),
9138 nl80211_wowlan_tcp_policy);
9139 if (err)
9140 return err;
9141
9142 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9143 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9144 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9145 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9146 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9147 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9148 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9149 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9150 return -EINVAL;
9151
9152 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9153 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9154 return -EINVAL;
9155
9156 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9157 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9158 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9159 return -EINVAL;
9160
9161 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9162 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9163 return -EINVAL;
9164
9165 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9166 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9167 return -EINVAL;
9168
9169 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9170 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9171
9172 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9173 tokens_size = tokln - sizeof(*tok);
9174
9175 if (!tok->len || tokens_size % tok->len)
9176 return -EINVAL;
964dc9e2 9177 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9178 return -EINVAL;
964dc9e2 9179 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9180 return -EINVAL;
964dc9e2 9181 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9182 return -EINVAL;
964dc9e2 9183 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9184 return -EINVAL;
9185 if (tok->offset + tok->len > data_size)
9186 return -EINVAL;
9187 }
9188
9189 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9190 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9191 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9192 return -EINVAL;
9193 if (seq->len == 0 || seq->len > 4)
9194 return -EINVAL;
9195 if (seq->len + seq->offset > data_size)
9196 return -EINVAL;
9197 }
9198
9199 size = sizeof(*cfg);
9200 size += data_size;
9201 size += wake_size + wake_mask_size;
9202 size += tokens_size;
9203
9204 cfg = kzalloc(size, GFP_KERNEL);
9205 if (!cfg)
9206 return -ENOMEM;
67b61f6c
JB		 9207 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9208 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9209 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9210 ETH_ALEN);
9211 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9212 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9213 else
9214 port = 0;
9215#ifdef CONFIG_INET
9216 /* allocate a socket and port for it and use it */
9217 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9218 IPPROTO_TCP, &cfg->sock, 1);
9219 if (err) {
9220 kfree(cfg);
9221 return err;
9222 }
9223 if (inet_csk_get_port(cfg->sock->sk, port)) {
9224 sock_release(cfg->sock);
9225 kfree(cfg);
9226 return -EADDRINUSE;
9227 }
9228 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9229#else
9230 if (!port) {
9231 kfree(cfg);
9232 return -EINVAL;
9233 }
9234 cfg->src_port = port;
9235#endif
9236
9237 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9238 cfg->payload_len = data_size;
9239 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9240 memcpy((void *)cfg->payload,
9241 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9242 data_size);
9243 if (seq)
9244 cfg->payload_seq = *seq;
9245 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9246 cfg->wake_len = wake_size;
9247 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9248 memcpy((void *)cfg->wake_data,
9249 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9250 wake_size);
9251 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9252 data_size + wake_size;
9253 memcpy((void *)cfg->wake_mask,
9254 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9255 wake_mask_size);
9256 if (tok) {
9257 cfg->tokens_size = tokens_size;
9258 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9259 }
9260
9261 trig->tcp = cfg;
9262
9263 return 0;
9264}
9265
8cd4d456
LC		 9266static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9267 const struct wiphy_wowlan_support *wowlan,
9268 struct nlattr *attr,
9269 struct cfg80211_wowlan *trig)
9270{
9271 struct nlattr **tb;
9272 int err;
9273
9274 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9275 if (!tb)
9276 return -ENOMEM;
9277
9278 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9279 err = -EOPNOTSUPP;
9280 goto out;
9281 }
9282
9283 err = nla_parse(tb, NL80211_ATTR_MAX,
9284 nla_data(attr), nla_len(attr),
9285 nl80211_policy);
9286 if (err)
9287 goto out;
9288
ad2b26ab 9289 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9290 err = PTR_ERR_OR_ZERO(trig->nd_config);
9291 if (err)
9292 trig->nd_config = NULL;
9293
9294out:
9295 kfree(tb);
9296 return err;
9297}
9298
ff1b6e69
JB		 9299static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9300{
9301 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9302 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9303 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9304 struct cfg80211_wowlan *ntrig;
964dc9e2 9305 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9306 int err, i;
6abb9cb9 9307 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9308 bool regular = false;
ff1b6e69 9309
964dc9e2 9310 if (!wowlan)
ff1b6e69
JB		 9311 return -EOPNOTSUPP;
9312
ae33bd81
JB		 9313 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9314 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9315 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9316 goto set_wakeup;
9317 }
ff1b6e69
JB		 9318
9319 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9320 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9321 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9322 nl80211_wowlan_policy);
9323 if (err)
9324 return err;
9325
9326 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9327 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9328 return -EINVAL;
9329 new_triggers.any = true;
9330 }
9331
9332 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9333 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9334 return -EINVAL;
9335 new_triggers.disconnect = true;
98fc4386 9336 regular = true;
ff1b6e69
JB		 9337 }
9338
9339 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9340 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9341 return -EINVAL;
9342 new_triggers.magic_pkt = true;
98fc4386 9343 regular = true;
ff1b6e69
JB		 9344 }
9345
77dbbb13
JB		 9346 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9347 return -EINVAL;
9348
9349 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9350 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9351 return -EINVAL;
9352 new_triggers.gtk_rekey_failure = true;
98fc4386 9353 regular = true;
77dbbb13
JB		 9354 }
9355
9356 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9357 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9358 return -EINVAL;
9359 new_triggers.eap_identity_req = true;
98fc4386 9360 regular = true;
77dbbb13
JB		 9361 }
9362
9363 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9364 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9365 return -EINVAL;
9366 new_triggers.four_way_handshake = true;
98fc4386 9367 regular = true;
77dbbb13
JB		 9368 }
9369
9370 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9371 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9372 return -EINVAL;
9373 new_triggers.rfkill_release = true;
98fc4386 9374 regular = true;
77dbbb13
JB		 9375 }
9376
ff1b6e69
JB		 9377 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9378 struct nlattr *pat;
9379 int n_patterns = 0;
bb92d199 9380 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9381 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9382
98fc4386
JB		 9383 regular = true;
9384
ff1b6e69
JB		 9385 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9386 rem)
9387 n_patterns++;
9388 if (n_patterns > wowlan->n_patterns)
9389 return -EINVAL;
9390
9391 new_triggers.patterns = kcalloc(n_patterns,
9392 sizeof(new_triggers.patterns[0]),
9393 GFP_KERNEL);
9394 if (!new_triggers.patterns)
9395 return -ENOMEM;
9396
9397 new_triggers.n_patterns = n_patterns;
9398 i = 0;
9399
9400 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9401 rem) {
922bd80f
JB		 9402 u8 *mask_pat;
9403
50ac6607
AK		 9404 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9405 nla_len(pat), NULL);
ff1b6e69 9406 err = -EINVAL;
50ac6607
AK		 9407 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9408 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9409 goto error;
50ac6607 9410 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9411 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9412 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9413 goto error;
9414 if (pat_len > wowlan->pattern_max_len ||
9415 pat_len < wowlan->pattern_min_len)
9416 goto error;
9417
50ac6607 9418 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9419 pkt_offset = 0;
9420 else
9421 pkt_offset = nla_get_u32(
50ac6607 9422 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9423 if (pkt_offset > wowlan->max_pkt_offset)
9424 goto error;
9425 new_triggers.patterns[i].pkt_offset = pkt_offset;
9426
922bd80f
JB		 9427 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9428 if (!mask_pat) {
ff1b6e69
JB		 9429 err = -ENOMEM;
9430 goto error;
9431 }
922bd80f
JB		 9432 new_triggers.patterns[i].mask = mask_pat;
9433 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9434 mask_len);
922bd80f
JB		 9435 mask_pat += mask_len;
9436 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9437 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9438 memcpy(mask_pat,
50ac6607 9439 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9440 pat_len);
9441 i++;
9442 }
9443 }
9444
2a0e047e 9445 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9446 regular = true;
2a0e047e
JB		 9447 err = nl80211_parse_wowlan_tcp(
9448 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9449 &new_triggers);
9450 if (err)
9451 goto error;
9452 }
9453
8cd4d456 9454 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9455 regular = true;
8cd4d456
LC		 9456 err = nl80211_parse_wowlan_nd(
9457 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9458 &new_triggers);
9459 if (err)
9460 goto error;
9461 }
9462
98fc4386
JB		 9463 /* The 'any' trigger means the device continues operating more or less
9464 * as in its normal operation mode and wakes up the host on most of the
9465 * normal interrupts (like packet RX, ...)
9466 * It therefore makes little sense to combine with the more constrained
9467 * wakeup trigger modes.
9468 */
9469 if (new_triggers.any && regular) {
9470 err = -EINVAL;
9471 goto error;
9472 }
9473
ae33bd81
JB		 9474 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9475 if (!ntrig) {
9476 err = -ENOMEM;
9477 goto error;
ff1b6e69 9478 }
ae33bd81 9479 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9480 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9481
ae33bd81 9482 set_wakeup:
6abb9cb9
JB		 9483 if (rdev->ops->set_wakeup &&
9484 prev_enabled != !!rdev->wiphy.wowlan_config)
9485 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9486
ff1b6e69
JB		 9487 return 0;
9488 error:
9489 for (i = 0; i < new_triggers.n_patterns; i++)
9490 kfree(new_triggers.patterns[i].mask);
9491 kfree(new_triggers.patterns);
2a0e047e
JB		 9492 if (new_triggers.tcp && new_triggers.tcp->sock)
9493 sock_release(new_triggers.tcp->sock);
9494 kfree(new_triggers.tcp);
ff1b6e69
JB		 9495 return err;
9496}
dfb89c56 9497#endif
ff1b6e69 9498
be29b99a
AK		 9499static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9500 struct cfg80211_registered_device *rdev)
9501{
9502 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9503 int i, j, pat_len;
9504 struct cfg80211_coalesce_rules *rule;
9505
9506 if (!rdev->coalesce->n_rules)
9507 return 0;
9508
9509 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9510 if (!nl_rules)
9511 return -ENOBUFS;
9512
9513 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9514 nl_rule = nla_nest_start(msg, i + 1);
9515 if (!nl_rule)
9516 return -ENOBUFS;
9517
9518 rule = &rdev->coalesce->rules[i];
9519 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9520 rule->delay))
9521 return -ENOBUFS;
9522
9523 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9524 rule->condition))
9525 return -ENOBUFS;
9526
9527 nl_pats = nla_nest_start(msg,
9528 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9529 if (!nl_pats)
9530 return -ENOBUFS;
9531
9532 for (j = 0; j < rule->n_patterns; j++) {
9533 nl_pat = nla_nest_start(msg, j + 1);
9534 if (!nl_pat)
9535 return -ENOBUFS;
9536 pat_len = rule->patterns[j].pattern_len;
9537 if (nla_put(msg, NL80211_PKTPAT_MASK,
9538 DIV_ROUND_UP(pat_len, 8),
9539 rule->patterns[j].mask) ||
9540 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9541 rule->patterns[j].pattern) ||
9542 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9543 rule->patterns[j].pkt_offset))
9544 return -ENOBUFS;
9545 nla_nest_end(msg, nl_pat);
9546 }
9547 nla_nest_end(msg, nl_pats);
9548 nla_nest_end(msg, nl_rule);
9549 }
9550 nla_nest_end(msg, nl_rules);
9551
9552 return 0;
9553}
9554
9555static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9556{
9557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9558 struct sk_buff *msg;
9559 void *hdr;
9560
9561 if (!rdev->wiphy.coalesce)
9562 return -EOPNOTSUPP;
9563
9564 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9565 if (!msg)
9566 return -ENOMEM;
9567
9568 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9569 NL80211_CMD_GET_COALESCE);
9570 if (!hdr)
9571 goto nla_put_failure;
9572
9573 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9574 goto nla_put_failure;
9575
9576 genlmsg_end(msg, hdr);
9577 return genlmsg_reply(msg, info);
9578
9579nla_put_failure:
9580 nlmsg_free(msg);
9581 return -ENOBUFS;
9582}
9583
9584void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9585{
9586 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9587 int i, j;
9588 struct cfg80211_coalesce_rules *rule;
9589
9590 if (!coalesce)
9591 return;
9592
9593 for (i = 0; i < coalesce->n_rules; i++) {
9594 rule = &coalesce->rules[i];
9595 for (j = 0; j < rule->n_patterns; j++)
9596 kfree(rule->patterns[j].mask);
9597 kfree(rule->patterns);
9598 }
9599 kfree(coalesce->rules);
9600 kfree(coalesce);
9601 rdev->coalesce = NULL;
9602}
9603
9604static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9605 struct nlattr *rule,
9606 struct cfg80211_coalesce_rules *new_rule)
9607{
9608 int err, i;
9609 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9610 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9611 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9612 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9613
9614 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9615 nla_len(rule), nl80211_coalesce_policy);
9616 if (err)
9617 return err;
9618
9619 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9620 new_rule->delay =
9621 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9622 if (new_rule->delay > coalesce->max_delay)
9623 return -EINVAL;
9624
9625 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9626 new_rule->condition =
9627 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9628 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9629 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9630 return -EINVAL;
9631
9632 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9633 return -EINVAL;
9634
9635 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9636 rem)
9637 n_patterns++;
9638 if (n_patterns > coalesce->n_patterns)
9639 return -EINVAL;
9640
9641 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9642 GFP_KERNEL);
9643 if (!new_rule->patterns)
9644 return -ENOMEM;
9645
9646 new_rule->n_patterns = n_patterns;
9647 i = 0;
9648
9649 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9650 rem) {
922bd80f
JB		 9651 u8 *mask_pat;
9652
be29b99a
AK		 9653 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9654 nla_len(pat), NULL);
9655 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9656 !pat_tb[NL80211_PKTPAT_PATTERN])
9657 return -EINVAL;
9658 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9659 mask_len = DIV_ROUND_UP(pat_len, 8);
9660 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9661 return -EINVAL;
9662 if (pat_len > coalesce->pattern_max_len ||
9663 pat_len < coalesce->pattern_min_len)
9664 return -EINVAL;
9665
9666 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9667 pkt_offset = 0;
9668 else
9669 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9670 if (pkt_offset > coalesce->max_pkt_offset)
9671 return -EINVAL;
9672 new_rule->patterns[i].pkt_offset = pkt_offset;
9673
922bd80f
JB		 9674 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9675 if (!mask_pat)
be29b99a 9676 return -ENOMEM;
922bd80f
JB		 9677
9678 new_rule->patterns[i].mask = mask_pat;
9679 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9680 mask_len);
9681
9682 mask_pat += mask_len;
9683 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9684 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9685 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9686 pat_len);
be29b99a
AK		 9687 i++;
9688 }
9689
9690 return 0;
9691}
9692
9693static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9694{
9695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9696 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9697 struct cfg80211_coalesce new_coalesce = {};
9698 struct cfg80211_coalesce *n_coalesce;
9699 int err, rem_rule, n_rules = 0, i, j;
9700 struct nlattr *rule;
9701 struct cfg80211_coalesce_rules *tmp_rule;
9702
9703 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9704 return -EOPNOTSUPP;
9705
9706 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9707 cfg80211_rdev_free_coalesce(rdev);
9708 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9709 return 0;
9710 }
9711
9712 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9713 rem_rule)
9714 n_rules++;
9715 if (n_rules > coalesce->n_rules)
9716 return -EINVAL;
9717
9718 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9719 GFP_KERNEL);
9720 if (!new_coalesce.rules)
9721 return -ENOMEM;
9722
9723 new_coalesce.n_rules = n_rules;
9724 i = 0;
9725
9726 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9727 rem_rule) {
9728 err = nl80211_parse_coalesce_rule(rdev, rule,
9729 &new_coalesce.rules[i]);
9730 if (err)
9731 goto error;
9732
9733 i++;
9734 }
9735
9736 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9737 if (err)
9738 goto error;
9739
9740 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9741 if (!n_coalesce) {
9742 err = -ENOMEM;
9743 goto error;
9744 }
9745 cfg80211_rdev_free_coalesce(rdev);
9746 rdev->coalesce = n_coalesce;
9747
9748 return 0;
9749error:
9750 for (i = 0; i < new_coalesce.n_rules; i++) {
9751 tmp_rule = &new_coalesce.rules[i];
9752 for (j = 0; j < tmp_rule->n_patterns; j++)
9753 kfree(tmp_rule->patterns[j].mask);
9754 kfree(tmp_rule->patterns);
9755 }
9756 kfree(new_coalesce.rules);
9757
9758 return err;
9759}
9760
e5497d76
JB		 9761static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9762{
9763 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9764 struct net_device *dev = info->user_ptr[1];
9765 struct wireless_dev *wdev = dev->ieee80211_ptr;
9766 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9767 struct cfg80211_gtk_rekey_data rekey_data;
9768 int err;
9769
9770 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9771 return -EINVAL;
9772
9773 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9774 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9775 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9776 nl80211_rekey_policy);
9777 if (err)
9778 return err;
9779
9780 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9781 return -ERANGE;
9782 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9783 return -ERANGE;
9784 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9785 return -ERANGE;
9786
78f686ca
JB		 9787 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9788 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9789 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9790
9791 wdev_lock(wdev);
9792 if (!wdev->current_bss) {
9793 err = -ENOTCONN;
9794 goto out;
9795 }
9796
9797 if (!rdev->ops->set_rekey_data) {
9798 err = -EOPNOTSUPP;
9799 goto out;
9800 }
9801
e35e4d28 9802 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9803 out:
9804 wdev_unlock(wdev);
9805 return err;
9806}
9807
28946da7
JB		 9808static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9809 struct genl_info *info)
9810{
9811 struct net_device *dev = info->user_ptr[1];
9812 struct wireless_dev *wdev = dev->ieee80211_ptr;
9813
9814 if (wdev->iftype != NL80211_IFTYPE_AP &&
9815 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9816 return -EINVAL;
9817
15e47304 9818 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9819 return -EBUSY;
9820
15e47304 9821 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9822 return 0;
9823}
9824
7f6cf311
JB		 9825static int nl80211_probe_client(struct sk_buff *skb,
9826 struct genl_info *info)
9827{
9828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9829 struct net_device *dev = info->user_ptr[1];
9830 struct wireless_dev *wdev = dev->ieee80211_ptr;
9831 struct sk_buff *msg;
9832 void *hdr;
9833 const u8 *addr;
9834 u64 cookie;
9835 int err;
9836
9837 if (wdev->iftype != NL80211_IFTYPE_AP &&
9838 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9839 return -EOPNOTSUPP;
9840
9841 if (!info->attrs[NL80211_ATTR_MAC])
9842 return -EINVAL;
9843
9844 if (!rdev->ops->probe_client)
9845 return -EOPNOTSUPP;
9846
9847 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9848 if (!msg)
9849 return -ENOMEM;
9850
15e47304 9851 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9852 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9853 if (!hdr) {
9854 err = -ENOBUFS;
7f6cf311
JB		 9855 goto free_msg;
9856 }
9857
9858 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9859
e35e4d28 9860 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9861 if (err)
9862 goto free_msg;
9863
9360ffd1
DM		 9864 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9865 goto nla_put_failure;
7f6cf311
JB		 9866
9867 genlmsg_end(msg, hdr);
9868
9869 return genlmsg_reply(msg, info);
9870
9871 nla_put_failure:
9872 err = -ENOBUFS;
9873 free_msg:
9874 nlmsg_free(msg);
9875 return err;
9876}
9877
5e760230
JB		 9878static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9879{
9880 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9881 struct cfg80211_beacon_registration *reg, *nreg;
9882 int rv;
5e760230
JB		 9883
9884 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9885 return -EOPNOTSUPP;
9886
37c73b5f
BG		 9887 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9888 if (!nreg)
9889 return -ENOMEM;
9890
9891 /* First, check if already registered. */
9892 spin_lock_bh(&rdev->beacon_registrations_lock);
9893 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9894 if (reg->nlportid == info->snd_portid) {
9895 rv = -EALREADY;
9896 goto out_err;
9897 }
9898 }
9899 /* Add it to the list */
9900 nreg->nlportid = info->snd_portid;
9901 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9902
37c73b5f 9903 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9904
9905 return 0;
37c73b5f
BG		 9906out_err:
9907 spin_unlock_bh(&rdev->beacon_registrations_lock);
9908 kfree(nreg);
9909 return rv;
5e760230
JB		 9910}
9911
98104fde
JB		 9912static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9913{
9914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9915 struct wireless_dev *wdev = info->user_ptr[1];
9916 int err;
9917
9918 if (!rdev->ops->start_p2p_device)
9919 return -EOPNOTSUPP;
9920
9921 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9922 return -EOPNOTSUPP;
9923
9924 if (wdev->p2p_started)
9925 return 0;
9926
b6a55015
LC		 9927 if (rfkill_blocked(rdev->rfkill))
9928 return -ERFKILL;
98104fde 9929
eeb126e9 9930 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9931 if (err)
9932 return err;
9933
9934 wdev->p2p_started = true;
98104fde 9935 rdev->opencount++;
98104fde
JB		 9936
9937 return 0;
9938}
9939
9940static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9941{
9942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9943 struct wireless_dev *wdev = info->user_ptr[1];
9944
9945 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9946 return -EOPNOTSUPP;
9947
9948 if (!rdev->ops->stop_p2p_device)
9949 return -EOPNOTSUPP;
9950
f9f47529 9951 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9952
9953 return 0;
9954}
9955
3713b4e3
JB		 9956static int nl80211_get_protocol_features(struct sk_buff *skb,
9957 struct genl_info *info)
9958{
9959 void *hdr;
9960 struct sk_buff *msg;
9961
9962 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9963 if (!msg)
9964 return -ENOMEM;
9965
9966 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9967 NL80211_CMD_GET_PROTOCOL_FEATURES);
9968 if (!hdr)
9969 goto nla_put_failure;
9970
9971 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9972 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9973 goto nla_put_failure;
9974
9975 genlmsg_end(msg, hdr);
9976 return genlmsg_reply(msg, info);
9977
9978 nla_put_failure:
9979 kfree_skb(msg);
9980 return -ENOBUFS;
9981}
9982
355199e0
JM		 9983static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9984{
9985 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9986 struct cfg80211_update_ft_ies_params ft_params;
9987 struct net_device *dev = info->user_ptr[1];
9988
9989 if (!rdev->ops->update_ft_ies)
9990 return -EOPNOTSUPP;
9991
9992 if (!info->attrs[NL80211_ATTR_MDID] ||
9993 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9994 return -EINVAL;
9995
9996 memset(&ft_params, 0, sizeof(ft_params));
9997 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9998 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9999 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10000
10001 return rdev_update_ft_ies(rdev, dev, &ft_params);
10002}
10003
5de17984
AS		 10004static int nl80211_crit_protocol_start(struct sk_buff *skb,
10005 struct genl_info *info)
10006{
10007 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10008 struct wireless_dev *wdev = info->user_ptr[1];
10009 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10010 u16 duration;
10011 int ret;
10012
10013 if (!rdev->ops->crit_proto_start)
10014 return -EOPNOTSUPP;
10015
10016 if (WARN_ON(!rdev->ops->crit_proto_stop))
10017 return -EINVAL;
10018
10019 if (rdev->crit_proto_nlportid)
10020 return -EBUSY;
10021
10022 /* determine protocol if provided */
10023 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10024 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10025
10026 if (proto >= NUM_NL80211_CRIT_PROTO)
10027 return -EINVAL;
10028
10029 /* timeout must be provided */
10030 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10031 return -EINVAL;
10032
10033 duration =
10034 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10035
10036 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10037 return -ERANGE;
10038
10039 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10040 if (!ret)
10041 rdev->crit_proto_nlportid = info->snd_portid;
10042
10043 return ret;
10044}
10045
10046static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10047 struct genl_info *info)
10048{
10049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10050 struct wireless_dev *wdev = info->user_ptr[1];
10051
10052 if (!rdev->ops->crit_proto_stop)
10053 return -EOPNOTSUPP;
10054
10055 if (rdev->crit_proto_nlportid) {
10056 rdev->crit_proto_nlportid = 0;
10057 rdev_crit_proto_stop(rdev, wdev);
10058 }
10059 return 0;
10060}
10061
ad7e718c
JB		 10062static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10063{
10064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10065 struct wireless_dev *wdev =
10066 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10067 int i, err;
10068 u32 vid, subcmd;
10069
10070 if (!rdev->wiphy.vendor_commands)
10071 return -EOPNOTSUPP;
10072
10073 if (IS_ERR(wdev)) {
10074 err = PTR_ERR(wdev);
10075 if (err != -EINVAL)
10076 return err;
10077 wdev = NULL;
10078 } else if (wdev->wiphy != &rdev->wiphy) {
10079 return -EINVAL;
10080 }
10081
10082 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10083 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10084 return -EINVAL;
10085
10086 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10087 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10088 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10089 const struct wiphy_vendor_command *vcmd;
10090 void *data = NULL;
10091 int len = 0;
10092
10093 vcmd = &rdev->wiphy.vendor_commands[i];
10094
10095 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10096 continue;
10097
10098 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10099 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10100 if (!wdev)
10101 return -EINVAL;
10102 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10103 !wdev->netdev)
10104 return -EINVAL;
10105
10106 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10107 if (wdev->netdev &&
10108 !netif_running(wdev->netdev))
10109 return -ENETDOWN;
10110 if (!wdev->netdev && !wdev->p2p_started)
10111 return -ENETDOWN;
10112 }
7bdbe400
JB		 10113
10114 if (!vcmd->doit)
10115 return -EOPNOTSUPP;
ad7e718c
JB		 10116 } else {
10117 wdev = NULL;
10118 }
10119
10120 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10121 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10122 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10123 }
10124
10125 rdev->cur_cmd_info = info;
10126 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10127 data, len);
10128 rdev->cur_cmd_info = NULL;
10129 return err;
10130 }
10131
10132 return -EOPNOTSUPP;
10133}
10134
7bdbe400
JB		 10135static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10136 struct netlink_callback *cb,
10137 struct cfg80211_registered_device **rdev,
10138 struct wireless_dev **wdev)
10139{
10140 u32 vid, subcmd;
10141 unsigned int i;
10142 int vcmd_idx = -1;
10143 int err;
10144 void *data = NULL;
10145 unsigned int data_len = 0;
10146
10147 rtnl_lock();
10148
10149 if (cb->args[0]) {
10150 /* subtract the 1 again here */
10151 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10152 struct wireless_dev *tmp;
10153
10154 if (!wiphy) {
10155 err = -ENODEV;
10156 goto out_unlock;
10157 }
10158 *rdev = wiphy_to_rdev(wiphy);
10159 *wdev = NULL;
10160
10161 if (cb->args[1]) {
10162 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
10163 if (tmp->identifier == cb->args[1] - 1) {
10164 *wdev = tmp;
10165 break;
10166 }
10167 }
10168 }
10169
10170 /* keep rtnl locked in successful case */
10171 return 0;
10172 }
10173
10174 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10175 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10176 nl80211_policy);
10177 if (err)
10178 goto out_unlock;
10179
10180 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10181 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10182 err = -EINVAL;
10183 goto out_unlock;
10184 }
10185
10186 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10187 nl80211_fam.attrbuf);
10188 if (IS_ERR(*wdev))
10189 *wdev = NULL;
10190
10191 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10192 nl80211_fam.attrbuf);
10193 if (IS_ERR(*rdev)) {
10194 err = PTR_ERR(*rdev);
10195 goto out_unlock;
10196 }
10197
10198 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10199 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10200
10201 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10202 const struct wiphy_vendor_command *vcmd;
10203
10204 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10205
10206 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10207 continue;
10208
10209 if (!vcmd->dumpit) {
10210 err = -EOPNOTSUPP;
10211 goto out_unlock;
10212 }
10213
10214 vcmd_idx = i;
10215 break;
10216 }
10217
10218 if (vcmd_idx < 0) {
10219 err = -EOPNOTSUPP;
10220 goto out_unlock;
10221 }
10222
10223 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10224 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10225 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10226 }
10227
10228 /* 0 is the first index - add 1 to parse only once */
10229 cb->args[0] = (*rdev)->wiphy_idx + 1;
10230 /* add 1 to know if it was NULL */
10231 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10232 cb->args[2] = vcmd_idx;
10233 cb->args[3] = (unsigned long)data;
10234 cb->args[4] = data_len;
10235
10236 /* keep rtnl locked in successful case */
10237 return 0;
10238 out_unlock:
10239 rtnl_unlock();
10240 return err;
10241}
10242
10243static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10244 struct netlink_callback *cb)
10245{
10246 struct cfg80211_registered_device *rdev;
10247 struct wireless_dev *wdev;
10248 unsigned int vcmd_idx;
10249 const struct wiphy_vendor_command *vcmd;
10250 void *data;
10251 int data_len;
10252 int err;
10253 struct nlattr *vendor_data;
10254
10255 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10256 if (err)
10257 return err;
10258
10259 vcmd_idx = cb->args[2];
10260 data = (void *)cb->args[3];
10261 data_len = cb->args[4];
10262 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10263
10264 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10265 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10266 if (!wdev)
10267 return -EINVAL;
10268 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10269 !wdev->netdev)
10270 return -EINVAL;
10271
10272 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10273 if (wdev->netdev &&
10274 !netif_running(wdev->netdev))
10275 return -ENETDOWN;
10276 if (!wdev->netdev && !wdev->p2p_started)
10277 return -ENETDOWN;
10278 }
10279 }
10280
10281 while (1) {
10282 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10283 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10284 NL80211_CMD_VENDOR);
10285 if (!hdr)
10286 break;
10287
10288 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10289 (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV,
10290 wdev_id(wdev)))) {
10291 genlmsg_cancel(skb, hdr);
10292 break;
10293 }
10294
10295 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10296 if (!vendor_data) {
10297 genlmsg_cancel(skb, hdr);
10298 break;
10299 }
10300
10301 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10302 (unsigned long *)&cb->args[5]);
10303 nla_nest_end(skb, vendor_data);
10304
10305 if (err == -ENOBUFS || err == -ENOENT) {
10306 genlmsg_cancel(skb, hdr);
10307 break;
10308 } else if (err) {
10309 genlmsg_cancel(skb, hdr);
10310 goto out;
10311 }
10312
10313 genlmsg_end(skb, hdr);
10314 }
10315
10316 err = skb->len;
10317 out:
10318 rtnl_unlock();
10319 return err;
10320}
10321
ad7e718c
JB		 10322struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10323 enum nl80211_commands cmd,
10324 enum nl80211_attrs attr,
10325 int approxlen)
10326{
f26cbf40 10327 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10328
10329 if (WARN_ON(!rdev->cur_cmd_info))
10330 return NULL;
10331
6c09e791 10332 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10333 rdev->cur_cmd_info->snd_portid,
10334 rdev->cur_cmd_info->snd_seq,
567ffc35 10335 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10336}
10337EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10338
10339int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10340{
10341 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10342 void *hdr = ((void **)skb->cb)[1];
10343 struct nlattr *data = ((void **)skb->cb)[2];
10344
bd8c78e7
JB		 10345 /* clear CB data for netlink core to own from now on */
10346 memset(skb->cb, 0, sizeof(skb->cb));
10347
ad7e718c
JB		 10348 if (WARN_ON(!rdev->cur_cmd_info)) {
10349 kfree_skb(skb);
10350 return -EINVAL;
10351 }
10352
10353 nla_nest_end(skb, data);
10354 genlmsg_end(skb, hdr);
10355 return genlmsg_reply(skb, rdev->cur_cmd_info);
10356}
10357EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10358
10359
fa9ffc74
KP		 10360static int nl80211_set_qos_map(struct sk_buff *skb,
10361 struct genl_info *info)
10362{
10363 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10364 struct cfg80211_qos_map *qos_map = NULL;
10365 struct net_device *dev = info->user_ptr[1];
10366 u8 *pos, len, num_des, des_len, des;
10367 int ret;
10368
10369 if (!rdev->ops->set_qos_map)
10370 return -EOPNOTSUPP;
10371
10372 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10373 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10374 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10375
10376 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10377 len > IEEE80211_QOS_MAP_LEN_MAX)
10378 return -EINVAL;
10379
10380 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10381 if (!qos_map)
10382 return -ENOMEM;
10383
10384 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10385 if (num_des) {
10386 des_len = num_des *
10387 sizeof(struct cfg80211_dscp_exception);
10388 memcpy(qos_map->dscp_exception, pos, des_len);
10389 qos_map->num_des = num_des;
10390 for (des = 0; des < num_des; des++) {
10391 if (qos_map->dscp_exception[des].up > 7) {
10392 kfree(qos_map);
10393 return -EINVAL;
10394 }
10395 }
10396 pos += des_len;
10397 }
10398 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10399 }
10400
10401 wdev_lock(dev->ieee80211_ptr);
10402 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10403 if (!ret)
10404 ret = rdev_set_qos_map(rdev, dev, qos_map);
10405 wdev_unlock(dev->ieee80211_ptr);
10406
10407 kfree(qos_map);
10408 return ret;
10409}
10410
960d01ac
JB		 10411static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10412{
10413 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10414 struct net_device *dev = info->user_ptr[1];
10415 struct wireless_dev *wdev = dev->ieee80211_ptr;
10416 const u8 *peer;
10417 u8 tsid, up;
10418 u16 admitted_time = 0;
10419 int err;
10420
723e73ac 10421 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10422 return -EOPNOTSUPP;
10423
10424 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10425 !info->attrs[NL80211_ATTR_USER_PRIO])
10426 return -EINVAL;
10427
10428 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10429 if (tsid >= IEEE80211_NUM_TIDS)
10430 return -EINVAL;
10431
10432 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10433 if (up >= IEEE80211_NUM_UPS)
10434 return -EINVAL;
10435
10436 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10437 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10438 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10439 * need more attributes for that (e.g. BA session requirement);
10440 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10441 */
10442 return -EINVAL;
10443 }
10444
10445 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10446
10447 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10448 admitted_time =
10449 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10450 if (!admitted_time)
10451 return -EINVAL;
10452 }
10453
10454 wdev_lock(wdev);
10455 switch (wdev->iftype) {
10456 case NL80211_IFTYPE_STATION:
10457 case NL80211_IFTYPE_P2P_CLIENT:
10458 if (wdev->current_bss)
10459 break;
10460 err = -ENOTCONN;
10461 goto out;
10462 default:
10463 err = -EOPNOTSUPP;
10464 goto out;
10465 }
10466
10467 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10468
10469 out:
10470 wdev_unlock(wdev);
10471 return err;
10472}
10473
10474static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10475{
10476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10477 struct net_device *dev = info->user_ptr[1];
10478 struct wireless_dev *wdev = dev->ieee80211_ptr;
10479 const u8 *peer;
10480 u8 tsid;
10481 int err;
10482
10483 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10484 return -EINVAL;
10485
10486 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10487 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10488
10489 wdev_lock(wdev);
10490 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10491 wdev_unlock(wdev);
10492
10493 return err;
10494}
10495
1057d35e
AN		 10496static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10497 struct genl_info *info)
10498{
10499 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10500 struct net_device *dev = info->user_ptr[1];
10501 struct wireless_dev *wdev = dev->ieee80211_ptr;
10502 struct cfg80211_chan_def chandef = {};
10503 const u8 *addr;
10504 u8 oper_class;
10505 int err;
10506
10507 if (!rdev->ops->tdls_channel_switch ||
10508 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10509 return -EOPNOTSUPP;
10510
10511 switch (dev->ieee80211_ptr->iftype) {
10512 case NL80211_IFTYPE_STATION:
10513 case NL80211_IFTYPE_P2P_CLIENT:
10514 break;
10515 default:
10516 return -EOPNOTSUPP;
10517 }
10518
10519 if (!info->attrs[NL80211_ATTR_MAC] ||
10520 !info->attrs[NL80211_ATTR_OPER_CLASS])
10521 return -EINVAL;
10522
10523 err = nl80211_parse_chandef(rdev, info, &chandef);
10524 if (err)
10525 return err;
10526
10527 /*
10528 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10529 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10530 * specification is not defined for them.
10531 */
10532 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10533 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10534 chandef.width != NL80211_CHAN_WIDTH_20)
10535 return -EINVAL;
10536
10537 /* we will be active on the TDLS link */
923b352f
AN		 10538 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10539 wdev->iftype))
1057d35e
AN		 10540 return -EINVAL;
10541
10542 /* don't allow switching to DFS channels */
10543 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10544 return -EINVAL;
10545
10546 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10547 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10548
10549 wdev_lock(wdev);
10550 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10551 wdev_unlock(wdev);
10552
10553 return err;
10554}
10555
10556static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10557 struct genl_info *info)
10558{
10559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10560 struct net_device *dev = info->user_ptr[1];
10561 struct wireless_dev *wdev = dev->ieee80211_ptr;
10562 const u8 *addr;
10563
10564 if (!rdev->ops->tdls_channel_switch ||
10565 !rdev->ops->tdls_cancel_channel_switch ||
10566 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10567 return -EOPNOTSUPP;
10568
10569 switch (dev->ieee80211_ptr->iftype) {
10570 case NL80211_IFTYPE_STATION:
10571 case NL80211_IFTYPE_P2P_CLIENT:
10572 break;
10573 default:
10574 return -EOPNOTSUPP;
10575 }
10576
10577 if (!info->attrs[NL80211_ATTR_MAC])
10578 return -EINVAL;
10579
10580 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10581
10582 wdev_lock(wdev);
10583 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10584 wdev_unlock(wdev);
10585
10586 return 0;
10587}
10588
4c476991
JB		 10589#define NL80211_FLAG_NEED_WIPHY 0x01
10590#define NL80211_FLAG_NEED_NETDEV 0x02
10591#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10592#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10593#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10594 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10595#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10596/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10597#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10598 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10599#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10600
f84f771d 10601static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10602 struct genl_info *info)
10603{
10604 struct cfg80211_registered_device *rdev;
89a54e48 10605 struct wireless_dev *wdev;
4c476991 10606 struct net_device *dev;
4c476991
JB		 10607 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10608
10609 if (rtnl)
10610 rtnl_lock();
10611
10612 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10613 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10614 if (IS_ERR(rdev)) {
10615 if (rtnl)
10616 rtnl_unlock();
10617 return PTR_ERR(rdev);
10618 }
10619 info->user_ptr[0] = rdev;
1bf614ef
JB		 10620 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10621 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10622 ASSERT_RTNL();
10623
89a54e48
JB		 10624 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10625 info->attrs);
10626 if (IS_ERR(wdev)) {
4c476991
JB		 10627 if (rtnl)
10628 rtnl_unlock();
89a54e48 10629 return PTR_ERR(wdev);
4c476991 10630 }
89a54e48 10631
89a54e48 10632 dev = wdev->netdev;
f26cbf40 10633 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10634
1bf614ef
JB		 10635 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10636 if (!dev) {
1bf614ef
JB		 10637 if (rtnl)
10638 rtnl_unlock();
10639 return -EINVAL;
10640 }
10641
10642 info->user_ptr[1] = dev;
10643 } else {
10644 info->user_ptr[1] = wdev;
41265714 10645 }
1bf614ef
JB		 10646
10647 if (dev) {
10648 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10649 !netif_running(dev)) {
1bf614ef
JB		 10650 if (rtnl)
10651 rtnl_unlock();
10652 return -ENETDOWN;
10653 }
10654
10655 dev_hold(dev);
98104fde
JB		 10656 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10657 if (!wdev->p2p_started) {
98104fde
JB		 10658 if (rtnl)
10659 rtnl_unlock();
10660 return -ENETDOWN;
10661 }
41265714 10662 }
89a54e48 10663
4c476991 10664 info->user_ptr[0] = rdev;
4c476991
JB		 10665 }
10666
10667 return 0;
10668}
10669
f84f771d 10670static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10671 struct genl_info *info)
10672{
1bf614ef
JB		 10673 if (info->user_ptr[1]) {
10674 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10675 struct wireless_dev *wdev = info->user_ptr[1];
10676
10677 if (wdev->netdev)
10678 dev_put(wdev->netdev);
10679 } else {
10680 dev_put(info->user_ptr[1]);
10681 }
10682 }
5393b917 10683
4c476991
JB		 10684 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10685 rtnl_unlock();
5393b917
JB		 10686
10687 /* If needed, clear the netlink message payload from the SKB
10688 * as it might contain key data that shouldn't stick around on
10689 * the heap after the SKB is freed. The netlink message header
10690 * is still needed for further processing, so leave it intact.
10691 */
10692 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10693 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10694
10695 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10696 }
4c476991
JB		 10697}
10698
4534de83 10699static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10700 {
10701 .cmd = NL80211_CMD_GET_WIPHY,
10702 .doit = nl80211_get_wiphy,
10703 .dumpit = nl80211_dump_wiphy,
86e8cf98 10704 .done = nl80211_dump_wiphy_done,
55682965
JB		 10705 .policy = nl80211_policy,
10706 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10707 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10708 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10709 },
10710 {
10711 .cmd = NL80211_CMD_SET_WIPHY,
10712 .doit = nl80211_set_wiphy,
10713 .policy = nl80211_policy,
10714 .flags = GENL_ADMIN_PERM,
4c476991 10715 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10716 },
10717 {
10718 .cmd = NL80211_CMD_GET_INTERFACE,
10719 .doit = nl80211_get_interface,
10720 .dumpit = nl80211_dump_interface,
10721 .policy = nl80211_policy,
10722 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10723 .internal_flags = NL80211_FLAG_NEED_WDEV |
10724 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10725 },
10726 {
10727 .cmd = NL80211_CMD_SET_INTERFACE,
10728 .doit = nl80211_set_interface,
10729 .policy = nl80211_policy,
10730 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10731 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10732 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10733 },
10734 {
10735 .cmd = NL80211_CMD_NEW_INTERFACE,
10736 .doit = nl80211_new_interface,
10737 .policy = nl80211_policy,
10738 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10739 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10740 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10741 },
10742 {
10743 .cmd = NL80211_CMD_DEL_INTERFACE,
10744 .doit = nl80211_del_interface,
10745 .policy = nl80211_policy,
41ade00f 10746 .flags = GENL_ADMIN_PERM,
84efbb84 10747 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10748 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10749 },
10750 {
10751 .cmd = NL80211_CMD_GET_KEY,
10752 .doit = nl80211_get_key,
10753 .policy = nl80211_policy,
10754 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10755 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10756 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10757 },
10758 {
10759 .cmd = NL80211_CMD_SET_KEY,
10760 .doit = nl80211_set_key,
10761 .policy = nl80211_policy,
10762 .flags = GENL_ADMIN_PERM,
41265714 10763 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10764 NL80211_FLAG_NEED_RTNL |
10765 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10766 },
10767 {
10768 .cmd = NL80211_CMD_NEW_KEY,
10769 .doit = nl80211_new_key,
10770 .policy = nl80211_policy,
10771 .flags = GENL_ADMIN_PERM,
41265714 10772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10773 NL80211_FLAG_NEED_RTNL |
10774 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10775 },
10776 {
10777 .cmd = NL80211_CMD_DEL_KEY,
10778 .doit = nl80211_del_key,
10779 .policy = nl80211_policy,
55682965 10780 .flags = GENL_ADMIN_PERM,
41265714 10781 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10782 NL80211_FLAG_NEED_RTNL,
55682965 10783 },
ed1b6cc7
JB		 10784 {
10785 .cmd = NL80211_CMD_SET_BEACON,
10786 .policy = nl80211_policy,
10787 .flags = GENL_ADMIN_PERM,
8860020e 10788 .doit = nl80211_set_beacon,
2b5f8b0b 10789 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10790 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10791 },
10792 {
8860020e 10793 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10794 .policy = nl80211_policy,
10795 .flags = GENL_ADMIN_PERM,
8860020e 10796 .doit = nl80211_start_ap,
2b5f8b0b 10797 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10798 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10799 },
10800 {
8860020e 10801 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10802 .policy = nl80211_policy,
10803 .flags = GENL_ADMIN_PERM,
8860020e 10804 .doit = nl80211_stop_ap,
2b5f8b0b 10805 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10806 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10807 },
5727ef1b
JB		 10808 {
10809 .cmd = NL80211_CMD_GET_STATION,
10810 .doit = nl80211_get_station,
2ec600d6 10811 .dumpit = nl80211_dump_station,
5727ef1b 10812 .policy = nl80211_policy,
4c476991
JB		 10813 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10814 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10815 },
10816 {
10817 .cmd = NL80211_CMD_SET_STATION,
10818 .doit = nl80211_set_station,
10819 .policy = nl80211_policy,
10820 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10821 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10822 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10823 },
10824 {
10825 .cmd = NL80211_CMD_NEW_STATION,
10826 .doit = nl80211_new_station,
10827 .policy = nl80211_policy,
10828 .flags = GENL_ADMIN_PERM,
41265714 10829 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10830 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10831 },
10832 {
10833 .cmd = NL80211_CMD_DEL_STATION,
10834 .doit = nl80211_del_station,
10835 .policy = nl80211_policy,
2ec600d6 10836 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10837 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10838 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10839 },
10840 {
10841 .cmd = NL80211_CMD_GET_MPATH,
10842 .doit = nl80211_get_mpath,
10843 .dumpit = nl80211_dump_mpath,
10844 .policy = nl80211_policy,
10845 .flags = GENL_ADMIN_PERM,
41265714 10846 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10847 NL80211_FLAG_NEED_RTNL,
2ec600d6 10848 },
66be7d2b
HR		 10849 {
10850 .cmd = NL80211_CMD_GET_MPP,
10851 .doit = nl80211_get_mpp,
10852 .dumpit = nl80211_dump_mpp,
10853 .policy = nl80211_policy,
10854 .flags = GENL_ADMIN_PERM,
10855 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10856 NL80211_FLAG_NEED_RTNL,
10857 },
2ec600d6
LCC		 10858 {
10859 .cmd = NL80211_CMD_SET_MPATH,
10860 .doit = nl80211_set_mpath,
10861 .policy = nl80211_policy,
10862 .flags = GENL_ADMIN_PERM,
41265714 10863 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10864 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10865 },
10866 {
10867 .cmd = NL80211_CMD_NEW_MPATH,
10868 .doit = nl80211_new_mpath,
10869 .policy = nl80211_policy,
10870 .flags = GENL_ADMIN_PERM,
41265714 10871 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10872 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10873 },
10874 {
10875 .cmd = NL80211_CMD_DEL_MPATH,
10876 .doit = nl80211_del_mpath,
10877 .policy = nl80211_policy,
9f1ba906 10878 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10879 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10880 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10881 },
10882 {
10883 .cmd = NL80211_CMD_SET_BSS,
10884 .doit = nl80211_set_bss,
10885 .policy = nl80211_policy,
b2e1b302 10886 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10887 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10888 NL80211_FLAG_NEED_RTNL,
b2e1b302 10889 },
f130347c
LR		 10890 {
10891 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10892 .doit = nl80211_get_reg_do,
10893 .dumpit = nl80211_get_reg_dump,
f130347c 10894 .policy = nl80211_policy,
5fe231e8 10895 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10896 /* can be retrieved by unprivileged users */
10897 },
b2e1b302
LR		 10898 {
10899 .cmd = NL80211_CMD_SET_REG,
10900 .doit = nl80211_set_reg,
10901 .policy = nl80211_policy,
10902 .flags = GENL_ADMIN_PERM,
5fe231e8 10903 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10904 },
10905 {
10906 .cmd = NL80211_CMD_REQ_SET_REG,
10907 .doit = nl80211_req_set_reg,
10908 .policy = nl80211_policy,
93da9cc1 10909 .flags = GENL_ADMIN_PERM,
10910 },
10911 {
24bdd9f4
JC		 10912 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10913 .doit = nl80211_get_mesh_config,
93da9cc1 10914 .policy = nl80211_policy,
10915 /* can be retrieved by unprivileged users */
2b5f8b0b 10916 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10917 NL80211_FLAG_NEED_RTNL,
93da9cc1 10918 },
10919 {
24bdd9f4
JC		 10920 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10921 .doit = nl80211_update_mesh_config,
93da9cc1 10922 .policy = nl80211_policy,
9aed3cc1 10923 .flags = GENL_ADMIN_PERM,
29cbe68c 10924 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10925 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10926 },
2a519311
JB		 10927 {
10928 .cmd = NL80211_CMD_TRIGGER_SCAN,
10929 .doit = nl80211_trigger_scan,
10930 .policy = nl80211_policy,
10931 .flags = GENL_ADMIN_PERM,
fd014284 10932 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10933 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10934 },
10935 {
10936 .cmd = NL80211_CMD_GET_SCAN,
10937 .policy = nl80211_policy,
10938 .dumpit = nl80211_dump_scan,
10939 },
807f8a8c
LC		 10940 {
10941 .cmd = NL80211_CMD_START_SCHED_SCAN,
10942 .doit = nl80211_start_sched_scan,
10943 .policy = nl80211_policy,
10944 .flags = GENL_ADMIN_PERM,
10945 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10946 NL80211_FLAG_NEED_RTNL,
10947 },
10948 {
10949 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10950 .doit = nl80211_stop_sched_scan,
10951 .policy = nl80211_policy,
10952 .flags = GENL_ADMIN_PERM,
10953 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10954 NL80211_FLAG_NEED_RTNL,
10955 },
636a5d36
JM		 10956 {
10957 .cmd = NL80211_CMD_AUTHENTICATE,
10958 .doit = nl80211_authenticate,
10959 .policy = nl80211_policy,
10960 .flags = GENL_ADMIN_PERM,
41265714 10961 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10962 NL80211_FLAG_NEED_RTNL |
10963 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10964 },
10965 {
10966 .cmd = NL80211_CMD_ASSOCIATE,
10967 .doit = nl80211_associate,
10968 .policy = nl80211_policy,
10969 .flags = GENL_ADMIN_PERM,
41265714 10970 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10971 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10972 },
10973 {
10974 .cmd = NL80211_CMD_DEAUTHENTICATE,
10975 .doit = nl80211_deauthenticate,
10976 .policy = nl80211_policy,
10977 .flags = GENL_ADMIN_PERM,
41265714 10978 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10979 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10980 },
10981 {
10982 .cmd = NL80211_CMD_DISASSOCIATE,
10983 .doit = nl80211_disassociate,
10984 .policy = nl80211_policy,
10985 .flags = GENL_ADMIN_PERM,
41265714 10986 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10987 NL80211_FLAG_NEED_RTNL,
636a5d36 10988 },
04a773ad
JB		 10989 {
10990 .cmd = NL80211_CMD_JOIN_IBSS,
10991 .doit = nl80211_join_ibss,
10992 .policy = nl80211_policy,
10993 .flags = GENL_ADMIN_PERM,
41265714 10994 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10995 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10996 },
10997 {
10998 .cmd = NL80211_CMD_LEAVE_IBSS,
10999 .doit = nl80211_leave_ibss,
11000 .policy = nl80211_policy,
11001 .flags = GENL_ADMIN_PERM,
41265714 11002 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11003 NL80211_FLAG_NEED_RTNL,
04a773ad 11004 },
aff89a9b
JB		 11005#ifdef CONFIG_NL80211_TESTMODE
11006 {
11007 .cmd = NL80211_CMD_TESTMODE,
11008 .doit = nl80211_testmode_do,
71063f0e 11009 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 11010 .policy = nl80211_policy,
11011 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11012 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11013 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11014 },
11015#endif
b23aa676
SO		 11016 {
11017 .cmd = NL80211_CMD_CONNECT,
11018 .doit = nl80211_connect,
11019 .policy = nl80211_policy,
11020 .flags = GENL_ADMIN_PERM,
41265714 11021 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11022 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11023 },
11024 {
11025 .cmd = NL80211_CMD_DISCONNECT,
11026 .doit = nl80211_disconnect,
11027 .policy = nl80211_policy,
11028 .flags = GENL_ADMIN_PERM,
41265714 11029 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11030 NL80211_FLAG_NEED_RTNL,
b23aa676 11031 },
463d0183
JB		 11032 {
11033 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11034 .doit = nl80211_wiphy_netns,
11035 .policy = nl80211_policy,
11036 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11037 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11038 NL80211_FLAG_NEED_RTNL,
463d0183 11039 },
61fa713c
HS		 11040 {
11041 .cmd = NL80211_CMD_GET_SURVEY,
11042 .policy = nl80211_policy,
11043 .dumpit = nl80211_dump_survey,
11044 },
67fbb16b
SO		 11045 {
11046 .cmd = NL80211_CMD_SET_PMKSA,
11047 .doit = nl80211_setdel_pmksa,
11048 .policy = nl80211_policy,
11049 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11050 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11051 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11052 },
11053 {
11054 .cmd = NL80211_CMD_DEL_PMKSA,
11055 .doit = nl80211_setdel_pmksa,
11056 .policy = nl80211_policy,
11057 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11058 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11059 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11060 },
11061 {
11062 .cmd = NL80211_CMD_FLUSH_PMKSA,
11063 .doit = nl80211_flush_pmksa,
11064 .policy = nl80211_policy,
11065 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11066 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11067 NL80211_FLAG_NEED_RTNL,
67fbb16b 11068 },
9588bbd5
JM		 11069 {
11070 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11071 .doit = nl80211_remain_on_channel,
11072 .policy = nl80211_policy,
11073 .flags = GENL_ADMIN_PERM,
71bbc994 11074 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11075 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11076 },
11077 {
11078 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11079 .doit = nl80211_cancel_remain_on_channel,
11080 .policy = nl80211_policy,
11081 .flags = GENL_ADMIN_PERM,
71bbc994 11082 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11083 NL80211_FLAG_NEED_RTNL,
9588bbd5 11084 },
13ae75b1
JM		 11085 {
11086 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11087 .doit = nl80211_set_tx_bitrate_mask,
11088 .policy = nl80211_policy,
11089 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11090 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11091 NL80211_FLAG_NEED_RTNL,
13ae75b1 11092 },
026331c4 11093 {
2e161f78
JB		 11094 .cmd = NL80211_CMD_REGISTER_FRAME,
11095 .doit = nl80211_register_mgmt,
026331c4
JM		 11096 .policy = nl80211_policy,
11097 .flags = GENL_ADMIN_PERM,
71bbc994 11098 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11099 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11100 },
11101 {
2e161f78
JB		 11102 .cmd = NL80211_CMD_FRAME,
11103 .doit = nl80211_tx_mgmt,
026331c4 11104 .policy = nl80211_policy,
f7ca38df 11105 .flags = GENL_ADMIN_PERM,
71bbc994 11106 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11107 NL80211_FLAG_NEED_RTNL,
11108 },
11109 {
11110 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11111 .doit = nl80211_tx_mgmt_cancel_wait,
11112 .policy = nl80211_policy,
026331c4 11113 .flags = GENL_ADMIN_PERM,
71bbc994 11114 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11115 NL80211_FLAG_NEED_RTNL,
026331c4 11116 },
ffb9eb3d
KV		 11117 {
11118 .cmd = NL80211_CMD_SET_POWER_SAVE,
11119 .doit = nl80211_set_power_save,
11120 .policy = nl80211_policy,
11121 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11122 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11123 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11124 },
11125 {
11126 .cmd = NL80211_CMD_GET_POWER_SAVE,
11127 .doit = nl80211_get_power_save,
11128 .policy = nl80211_policy,
11129 /* can be retrieved by unprivileged users */
4c476991
JB		 11130 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11131 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11132 },
d6dc1a38
JO		 11133 {
11134 .cmd = NL80211_CMD_SET_CQM,
11135 .doit = nl80211_set_cqm,
11136 .policy = nl80211_policy,
11137 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11138 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11139 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11140 },
f444de05
JB		 11141 {
11142 .cmd = NL80211_CMD_SET_CHANNEL,
11143 .doit = nl80211_set_channel,
11144 .policy = nl80211_policy,
11145 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11146 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11147 NL80211_FLAG_NEED_RTNL,
f444de05 11148 },
e8347eba
BJ		 11149 {
11150 .cmd = NL80211_CMD_SET_WDS_PEER,
11151 .doit = nl80211_set_wds_peer,
11152 .policy = nl80211_policy,
11153 .flags = GENL_ADMIN_PERM,
43b19952
JB		 11154 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11155 NL80211_FLAG_NEED_RTNL,
e8347eba 11156 },
29cbe68c
JB		 11157 {
11158 .cmd = NL80211_CMD_JOIN_MESH,
11159 .doit = nl80211_join_mesh,
11160 .policy = nl80211_policy,
11161 .flags = GENL_ADMIN_PERM,
11162 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11163 NL80211_FLAG_NEED_RTNL,
11164 },
11165 {
11166 .cmd = NL80211_CMD_LEAVE_MESH,
11167 .doit = nl80211_leave_mesh,
11168 .policy = nl80211_policy,
11169 .flags = GENL_ADMIN_PERM,
11170 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11171 NL80211_FLAG_NEED_RTNL,
11172 },
6e0bd6c3
RL		 11173 {
11174 .cmd = NL80211_CMD_JOIN_OCB,
11175 .doit = nl80211_join_ocb,
11176 .policy = nl80211_policy,
11177 .flags = GENL_ADMIN_PERM,
11178 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11179 NL80211_FLAG_NEED_RTNL,
11180 },
11181 {
11182 .cmd = NL80211_CMD_LEAVE_OCB,
11183 .doit = nl80211_leave_ocb,
11184 .policy = nl80211_policy,
11185 .flags = GENL_ADMIN_PERM,
11186 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11187 NL80211_FLAG_NEED_RTNL,
11188 },
dfb89c56 11189#ifdef CONFIG_PM
ff1b6e69
JB		 11190 {
11191 .cmd = NL80211_CMD_GET_WOWLAN,
11192 .doit = nl80211_get_wowlan,
11193 .policy = nl80211_policy,
11194 /* can be retrieved by unprivileged users */
11195 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11196 NL80211_FLAG_NEED_RTNL,
11197 },
11198 {
11199 .cmd = NL80211_CMD_SET_WOWLAN,
11200 .doit = nl80211_set_wowlan,
11201 .policy = nl80211_policy,
11202 .flags = GENL_ADMIN_PERM,
11203 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11204 NL80211_FLAG_NEED_RTNL,
11205 },
dfb89c56 11206#endif
e5497d76
JB		 11207 {
11208 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11209 .doit = nl80211_set_rekey_data,
11210 .policy = nl80211_policy,
11211 .flags = GENL_ADMIN_PERM,
11212 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11213 NL80211_FLAG_NEED_RTNL |
11214 NL80211_FLAG_CLEAR_SKB,
e5497d76 11215 },
109086ce
AN		 11216 {
11217 .cmd = NL80211_CMD_TDLS_MGMT,
11218 .doit = nl80211_tdls_mgmt,
11219 .policy = nl80211_policy,
11220 .flags = GENL_ADMIN_PERM,
11221 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11222 NL80211_FLAG_NEED_RTNL,
11223 },
11224 {
11225 .cmd = NL80211_CMD_TDLS_OPER,
11226 .doit = nl80211_tdls_oper,
11227 .policy = nl80211_policy,
11228 .flags = GENL_ADMIN_PERM,
11229 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11230 NL80211_FLAG_NEED_RTNL,
11231 },
28946da7
JB		 11232 {
11233 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11234 .doit = nl80211_register_unexpected_frame,
11235 .policy = nl80211_policy,
11236 .flags = GENL_ADMIN_PERM,
11237 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11238 NL80211_FLAG_NEED_RTNL,
11239 },
7f6cf311
JB		 11240 {
11241 .cmd = NL80211_CMD_PROBE_CLIENT,
11242 .doit = nl80211_probe_client,
11243 .policy = nl80211_policy,
11244 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11245 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11246 NL80211_FLAG_NEED_RTNL,
11247 },
5e760230
JB		 11248 {
11249 .cmd = NL80211_CMD_REGISTER_BEACONS,
11250 .doit = nl80211_register_beacons,
11251 .policy = nl80211_policy,
11252 .flags = GENL_ADMIN_PERM,
11253 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11254 NL80211_FLAG_NEED_RTNL,
11255 },
1d9d9213
SW		 11256 {
11257 .cmd = NL80211_CMD_SET_NOACK_MAP,
11258 .doit = nl80211_set_noack_map,
11259 .policy = nl80211_policy,
11260 .flags = GENL_ADMIN_PERM,
11261 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11262 NL80211_FLAG_NEED_RTNL,
11263 },
98104fde
JB		 11264 {
11265 .cmd = NL80211_CMD_START_P2P_DEVICE,
11266 .doit = nl80211_start_p2p_device,
11267 .policy = nl80211_policy,
11268 .flags = GENL_ADMIN_PERM,
11269 .internal_flags = NL80211_FLAG_NEED_WDEV |
11270 NL80211_FLAG_NEED_RTNL,
11271 },
11272 {
11273 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11274 .doit = nl80211_stop_p2p_device,
11275 .policy = nl80211_policy,
11276 .flags = GENL_ADMIN_PERM,
11277 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11278 NL80211_FLAG_NEED_RTNL,
11279 },
f4e583c8
AQ		 11280 {
11281 .cmd = NL80211_CMD_SET_MCAST_RATE,
11282 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 11283 .policy = nl80211_policy,
11284 .flags = GENL_ADMIN_PERM,
11285 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11286 NL80211_FLAG_NEED_RTNL,
11287 },
11288 {
11289 .cmd = NL80211_CMD_SET_MAC_ACL,
11290 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 11291 .policy = nl80211_policy,
11292 .flags = GENL_ADMIN_PERM,
11293 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11294 NL80211_FLAG_NEED_RTNL,
11295 },
04f39047
SW		 11296 {
11297 .cmd = NL80211_CMD_RADAR_DETECT,
11298 .doit = nl80211_start_radar_detection,
11299 .policy = nl80211_policy,
11300 .flags = GENL_ADMIN_PERM,
11301 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11302 NL80211_FLAG_NEED_RTNL,
11303 },
3713b4e3
JB		 11304 {
11305 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11306 .doit = nl80211_get_protocol_features,
11307 .policy = nl80211_policy,
11308 },
355199e0
JM		 11309 {
11310 .cmd = NL80211_CMD_UPDATE_FT_IES,
11311 .doit = nl80211_update_ft_ies,
11312 .policy = nl80211_policy,
11313 .flags = GENL_ADMIN_PERM,
11314 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11315 NL80211_FLAG_NEED_RTNL,
11316 },
5de17984
AS		 11317 {
11318 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11319 .doit = nl80211_crit_protocol_start,
11320 .policy = nl80211_policy,
11321 .flags = GENL_ADMIN_PERM,
11322 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11323 NL80211_FLAG_NEED_RTNL,
11324 },
11325 {
11326 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11327 .doit = nl80211_crit_protocol_stop,
11328 .policy = nl80211_policy,
11329 .flags = GENL_ADMIN_PERM,
11330 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11331 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11332 },
11333 {
11334 .cmd = NL80211_CMD_GET_COALESCE,
11335 .doit = nl80211_get_coalesce,
11336 .policy = nl80211_policy,
11337 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11338 NL80211_FLAG_NEED_RTNL,
11339 },
11340 {
11341 .cmd = NL80211_CMD_SET_COALESCE,
11342 .doit = nl80211_set_coalesce,
11343 .policy = nl80211_policy,
11344 .flags = GENL_ADMIN_PERM,
11345 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11346 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11347 },
11348 {
11349 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11350 .doit = nl80211_channel_switch,
11351 .policy = nl80211_policy,
11352 .flags = GENL_ADMIN_PERM,
11353 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11354 NL80211_FLAG_NEED_RTNL,
11355 },
ad7e718c
JB		 11356 {
11357 .cmd = NL80211_CMD_VENDOR,
11358 .doit = nl80211_vendor_cmd,
7bdbe400 11359 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c
JB		 11360 .policy = nl80211_policy,
11361 .flags = GENL_ADMIN_PERM,
11362 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11363 NL80211_FLAG_NEED_RTNL,
11364 },
fa9ffc74
KP		 11365 {
11366 .cmd = NL80211_CMD_SET_QOS_MAP,
11367 .doit = nl80211_set_qos_map,
11368 .policy = nl80211_policy,
11369 .flags = GENL_ADMIN_PERM,
11370 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11371 NL80211_FLAG_NEED_RTNL,
11372 },
960d01ac
JB		 11373 {
11374 .cmd = NL80211_CMD_ADD_TX_TS,
11375 .doit = nl80211_add_tx_ts,
11376 .policy = nl80211_policy,
11377 .flags = GENL_ADMIN_PERM,
11378 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11379 NL80211_FLAG_NEED_RTNL,
11380 },
11381 {
11382 .cmd = NL80211_CMD_DEL_TX_TS,
11383 .doit = nl80211_del_tx_ts,
11384 .policy = nl80211_policy,
11385 .flags = GENL_ADMIN_PERM,
11386 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11387 NL80211_FLAG_NEED_RTNL,
11388 },
1057d35e
AN		 11389 {
11390 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11391 .doit = nl80211_tdls_channel_switch,
11392 .policy = nl80211_policy,
11393 .flags = GENL_ADMIN_PERM,
11394 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11395 NL80211_FLAG_NEED_RTNL,
11396 },
11397 {
11398 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11399 .doit = nl80211_tdls_cancel_channel_switch,
11400 .policy = nl80211_policy,
11401 .flags = GENL_ADMIN_PERM,
11402 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11403 NL80211_FLAG_NEED_RTNL,
11404 },
55682965 11405};
9588bbd5 11406
55682965
JB		 11407/* notification functions */
11408
3bb20556
JB		 11409void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11410 enum nl80211_commands cmd)
55682965
JB		 11411{
11412 struct sk_buff *msg;
86e8cf98 11413 struct nl80211_dump_wiphy_state state = {};
55682965 11414
3bb20556
JB		 11415 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11416 cmd != NL80211_CMD_DEL_WIPHY);
11417
fd2120ca 11418 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11419 if (!msg)
11420 return;
11421
3bb20556 11422 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11423 nlmsg_free(msg);
11424 return;
11425 }
11426
68eb5503 11427 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11428 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11429}
11430
362a415d
JB		 11431static int nl80211_add_scan_req(struct sk_buff *msg,
11432 struct cfg80211_registered_device *rdev)
11433{
11434 struct cfg80211_scan_request *req = rdev->scan_req;
11435 struct nlattr *nest;
11436 int i;
11437
11438 if (WARN_ON(!req))
11439 return 0;
11440
11441 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11442 if (!nest)
11443 goto nla_put_failure;
9360ffd1
DM		 11444 for (i = 0; i < req->n_ssids; i++) {
11445 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11446 goto nla_put_failure;
11447 }
362a415d
JB		 11448 nla_nest_end(msg, nest);
11449
11450 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11451 if (!nest)
11452 goto nla_put_failure;
9360ffd1
DM		 11453 for (i = 0; i < req->n_channels; i++) {
11454 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11455 goto nla_put_failure;
11456 }
362a415d
JB		 11457 nla_nest_end(msg, nest);
11458
9360ffd1
DM		 11459 if (req->ie &&
11460 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11461 goto nla_put_failure;
362a415d 11462
ae917c9f
JB		 11463 if (req->flags &&
11464 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11465 goto nla_put_failure;
ed473771 11466
362a415d
JB		 11467 return 0;
11468 nla_put_failure:
11469 return -ENOBUFS;
11470}
11471
a538e2d5
JB		 11472static int nl80211_send_scan_msg(struct sk_buff *msg,
11473 struct cfg80211_registered_device *rdev,
fd014284 11474 struct wireless_dev *wdev,
15e47304 11475 u32 portid, u32 seq, int flags,
a538e2d5 11476 u32 cmd)
2a519311
JB		 11477{
11478 void *hdr;
11479
15e47304 11480 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11481 if (!hdr)
11482 return -1;
11483
9360ffd1 11484 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11485 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11486 wdev->netdev->ifindex)) ||
11487 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11488 goto nla_put_failure;
2a519311 11489
362a415d
JB		 11490 /* ignore errors and send incomplete event anyway */
11491 nl80211_add_scan_req(msg, rdev);
2a519311 11492
053c095a
JB		 11493 genlmsg_end(msg, hdr);
11494 return 0;
2a519311
JB		 11495
11496 nla_put_failure:
11497 genlmsg_cancel(msg, hdr);
11498 return -EMSGSIZE;
11499}
11500
807f8a8c
LC		 11501static int
11502nl80211_send_sched_scan_msg(struct sk_buff *msg,
11503 struct cfg80211_registered_device *rdev,
11504 struct net_device *netdev,
15e47304 11505 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11506{
11507 void *hdr;
11508
15e47304 11509 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11510 if (!hdr)
11511 return -1;
11512
9360ffd1
DM		 11513 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11514 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11515 goto nla_put_failure;
807f8a8c 11516
053c095a
JB		 11517 genlmsg_end(msg, hdr);
11518 return 0;
807f8a8c
LC		 11519
11520 nla_put_failure:
11521 genlmsg_cancel(msg, hdr);
11522 return -EMSGSIZE;
11523}
11524
a538e2d5 11525void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11526 struct wireless_dev *wdev)
a538e2d5
JB		 11527{
11528 struct sk_buff *msg;
11529
58050fce 11530 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11531 if (!msg)
11532 return;
11533
fd014284 11534 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11535 NL80211_CMD_TRIGGER_SCAN) < 0) {
11536 nlmsg_free(msg);
11537 return;
11538 }
11539
68eb5503 11540 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11541 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11542}
11543
f9d15d16
JB		 11544struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11545 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11546{
11547 struct sk_buff *msg;
11548
fd2120ca 11549 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11550 if (!msg)
f9d15d16 11551 return NULL;
2a519311 11552
fd014284 11553 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11554 aborted ? NL80211_CMD_SCAN_ABORTED :
11555 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11556 nlmsg_free(msg);
f9d15d16 11557 return NULL;
2a519311
JB		 11558 }
11559
f9d15d16 11560 return msg;
2a519311
JB		 11561}
11562
f9d15d16
JB		 11563void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11564 struct sk_buff *msg)
2a519311 11565{
2a519311
JB		 11566 if (!msg)
11567 return;
11568
68eb5503 11569 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11570 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11571}
11572
807f8a8c
LC		 11573void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11574 struct net_device *netdev)
11575{
11576 struct sk_buff *msg;
11577
11578 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11579 if (!msg)
11580 return;
11581
11582 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11583 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11584 nlmsg_free(msg);
11585 return;
11586 }
11587
68eb5503 11588 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11589 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11590}
11591
11592void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11593 struct net_device *netdev, u32 cmd)
11594{
11595 struct sk_buff *msg;
11596
58050fce 11597 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11598 if (!msg)
11599 return;
11600
11601 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11602 nlmsg_free(msg);
11603 return;
11604 }
11605
68eb5503 11606 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11607 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11608}
11609
b0d7aa59
JD		 11610static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11611 struct regulatory_request *request)
73d54c9e 11612{
73d54c9e 11613 /* Userspace can always count this one always being set */
9360ffd1
DM		 11614 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11615 goto nla_put_failure;
11616
11617 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11618 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11619 NL80211_REGDOM_TYPE_WORLD))
11620 goto nla_put_failure;
11621 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11622 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11623 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11624 goto nla_put_failure;
11625 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11626 request->intersect) {
11627 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11628 NL80211_REGDOM_TYPE_INTERSECTION))
11629 goto nla_put_failure;
11630 } else {
11631 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11632 NL80211_REGDOM_TYPE_COUNTRY) ||
11633 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11634 request->alpha2))
11635 goto nla_put_failure;
11636 }
11637
ad30ca2c
AN		 11638 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11639 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11640
11641 if (wiphy &&
11642 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11643 goto nla_put_failure;
1bdd716c
AN		 11644
11645 if (wiphy &&
11646 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11647 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11648 goto nla_put_failure;
ad30ca2c 11649 }
73d54c9e 11650
b0d7aa59
JD		 11651 return true;
11652
11653nla_put_failure:
11654 return false;
11655}
11656
11657/*
11658 * This can happen on global regulatory changes or device specific settings
11659 * based on custom regulatory domains.
11660 */
11661void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11662 struct regulatory_request *request)
11663{
11664 struct sk_buff *msg;
11665 void *hdr;
11666
11667 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11668 if (!msg)
11669 return;
11670
11671 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11672 if (!hdr) {
11673 nlmsg_free(msg);
11674 return;
11675 }
11676
11677 if (nl80211_reg_change_event_fill(msg, request) == false)
11678 goto nla_put_failure;
11679
3b7b72ee 11680 genlmsg_end(msg, hdr);
73d54c9e 11681
bc43b28c 11682 rcu_read_lock();
68eb5503 11683 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11684 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11685 rcu_read_unlock();
73d54c9e
LR		 11686
11687 return;
11688
11689nla_put_failure:
11690 genlmsg_cancel(msg, hdr);
11691 nlmsg_free(msg);
11692}
11693
6039f6d2
JM		 11694static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11695 struct net_device *netdev,
11696 const u8 *buf, size_t len,
b0b6aa2c
EP		 11697 enum nl80211_commands cmd, gfp_t gfp,
11698 int uapsd_queues)
6039f6d2
JM		 11699{
11700 struct sk_buff *msg;
11701 void *hdr;
11702
e6d6e342 11703 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11704 if (!msg)
11705 return;
11706
11707 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11708 if (!hdr) {
11709 nlmsg_free(msg);
11710 return;
11711 }
11712
9360ffd1
DM		 11713 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11714 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11715 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11716 goto nla_put_failure;
6039f6d2 11717
b0b6aa2c
EP		 11718 if (uapsd_queues >= 0) {
11719 struct nlattr *nla_wmm =
11720 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11721 if (!nla_wmm)
11722 goto nla_put_failure;
11723
11724 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11725 uapsd_queues))
11726 goto nla_put_failure;
11727
11728 nla_nest_end(msg, nla_wmm);
11729 }
11730
3b7b72ee 11731 genlmsg_end(msg, hdr);
6039f6d2 11732
68eb5503 11733 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11734 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11735 return;
11736
11737 nla_put_failure:
11738 genlmsg_cancel(msg, hdr);
11739 nlmsg_free(msg);
11740}
11741
11742void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11743 struct net_device *netdev, const u8 *buf,
11744 size_t len, gfp_t gfp)
6039f6d2
JM		 11745{
11746 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11747 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11748}
11749
11750void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11751 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11752 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11753{
e6d6e342 11754 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11755 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11756}
11757
53b46b84 11758void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11759 struct net_device *netdev, const u8 *buf,
11760 size_t len, gfp_t gfp)
6039f6d2
JM		 11761{
11762 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11763 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11764}
11765
53b46b84
JM		 11766void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11767 struct net_device *netdev, const u8 *buf,
e6d6e342 11768 size_t len, gfp_t gfp)
6039f6d2
JM		 11769{
11770 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11771 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11772}
11773
6ff57cf8
JB		 11774void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11775 size_t len)
cf4e594e 11776{
947add36
JB		 11777 struct wireless_dev *wdev = dev->ieee80211_ptr;
11778 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11779 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11780 const struct ieee80211_mgmt *mgmt = (void *)buf;
11781 u32 cmd;
947add36 11782
6ff57cf8
JB		 11783 if (WARN_ON(len < 2))
11784 return;
cf4e594e 11785
6ff57cf8
JB		 11786 if (ieee80211_is_deauth(mgmt->frame_control))
11787 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11788 else
11789 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11790
6ff57cf8 11791 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11792 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11793}
6ff57cf8 11794EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11795
1b06bb40
LR		 11796static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11797 struct net_device *netdev, int cmd,
e6d6e342 11798 const u8 *addr, gfp_t gfp)
1965c853
JM		 11799{
11800 struct sk_buff *msg;
11801 void *hdr;
11802
e6d6e342 11803 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11804 if (!msg)
11805 return;
11806
11807 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11808 if (!hdr) {
11809 nlmsg_free(msg);
11810 return;
11811 }
11812
9360ffd1
DM		 11813 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11814 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11815 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11816 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11817 goto nla_put_failure;
1965c853 11818
3b7b72ee 11819 genlmsg_end(msg, hdr);
1965c853 11820
68eb5503 11821 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11822 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11823 return;
11824
11825 nla_put_failure:
11826 genlmsg_cancel(msg, hdr);
11827 nlmsg_free(msg);
11828}
11829
11830void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11831 struct net_device *netdev, const u8 *addr,
11832 gfp_t gfp)
1965c853
JM		 11833{
11834 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11835 addr, gfp);
1965c853
JM		 11836}
11837
11838void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11839 struct net_device *netdev, const u8 *addr,
11840 gfp_t gfp)
1965c853 11841{
e6d6e342
JB		 11842 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11843 addr, gfp);
1965c853
JM		 11844}
11845
b23aa676
SO		 11846void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11847 struct net_device *netdev, const u8 *bssid,
11848 const u8 *req_ie, size_t req_ie_len,
11849 const u8 *resp_ie, size_t resp_ie_len,
11850 u16 status, gfp_t gfp)
11851{
11852 struct sk_buff *msg;
11853 void *hdr;
11854
58050fce 11855 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11856 if (!msg)
11857 return;
11858
11859 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11860 if (!hdr) {
11861 nlmsg_free(msg);
11862 return;
11863 }
11864
9360ffd1
DM		 11865 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11866 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11867 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11868 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11869 (req_ie &&
11870 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11871 (resp_ie &&
11872 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11873 goto nla_put_failure;
b23aa676 11874
3b7b72ee 11875 genlmsg_end(msg, hdr);
b23aa676 11876
68eb5503 11877 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11878 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11879 return;
11880
11881 nla_put_failure:
11882 genlmsg_cancel(msg, hdr);
11883 nlmsg_free(msg);
11884
11885}
11886
11887void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11888 struct net_device *netdev, const u8 *bssid,
11889 const u8 *req_ie, size_t req_ie_len,
11890 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11891{
11892 struct sk_buff *msg;
11893 void *hdr;
11894
58050fce 11895 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11896 if (!msg)
11897 return;
11898
11899 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11900 if (!hdr) {
11901 nlmsg_free(msg);
11902 return;
11903 }
11904
9360ffd1
DM		 11905 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11906 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11907 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11908 (req_ie &&
11909 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11910 (resp_ie &&
11911 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11912 goto nla_put_failure;
b23aa676 11913
3b7b72ee 11914 genlmsg_end(msg, hdr);
b23aa676 11915
68eb5503 11916 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11917 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11918 return;
11919
11920 nla_put_failure:
11921 genlmsg_cancel(msg, hdr);
11922 nlmsg_free(msg);
11923
11924}
11925
11926void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11927 struct net_device *netdev, u16 reason,
667503dd 11928 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11929{
11930 struct sk_buff *msg;
11931 void *hdr;
11932
58050fce 11933 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11934 if (!msg)
11935 return;
11936
11937 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11938 if (!hdr) {
11939 nlmsg_free(msg);
11940 return;
11941 }
11942
9360ffd1
DM		 11943 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11944 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11945 (from_ap && reason &&
11946 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11947 (from_ap &&
11948 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11949 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11950 goto nla_put_failure;
b23aa676 11951
3b7b72ee 11952 genlmsg_end(msg, hdr);
b23aa676 11953
68eb5503 11954 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11955 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11956 return;
11957
11958 nla_put_failure:
11959 genlmsg_cancel(msg, hdr);
11960 nlmsg_free(msg);
11961
11962}
11963
04a773ad
JB		 11964void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11965 struct net_device *netdev, const u8 *bssid,
11966 gfp_t gfp)
11967{
11968 struct sk_buff *msg;
11969 void *hdr;
11970
fd2120ca 11971 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11972 if (!msg)
11973 return;
11974
11975 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11976 if (!hdr) {
11977 nlmsg_free(msg);
11978 return;
11979 }
11980
9360ffd1
DM		 11981 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11982 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11983 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11984 goto nla_put_failure;
04a773ad 11985
3b7b72ee 11986 genlmsg_end(msg, hdr);
04a773ad 11987
68eb5503 11988 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11989 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11990 return;
11991
11992 nla_put_failure:
11993 genlmsg_cancel(msg, hdr);
11994 nlmsg_free(msg);
11995}
11996
947add36
JB		 11997void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11998 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11999{
947add36 12000 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12001 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12002 struct sk_buff *msg;
12003 void *hdr;
12004
947add36
JB		 12005 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12006 return;
12007
12008 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12009
c93b5e71
JC		 12010 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12011 if (!msg)
12012 return;
12013
12014 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12015 if (!hdr) {
12016 nlmsg_free(msg);
12017 return;
12018 }
12019
9360ffd1 12020 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12021 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12022 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12023 (ie_len && ie &&
12024 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12025 goto nla_put_failure;
c93b5e71 12026
3b7b72ee 12027 genlmsg_end(msg, hdr);
c93b5e71 12028
68eb5503 12029 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12030 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12031 return;
12032
12033 nla_put_failure:
12034 genlmsg_cancel(msg, hdr);
12035 nlmsg_free(msg);
12036}
947add36 12037EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12038
a3b8b056
JM		 12039void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12040 struct net_device *netdev, const u8 *addr,
12041 enum nl80211_key_type key_type, int key_id,
e6d6e342 12042 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12043{
12044 struct sk_buff *msg;
12045 void *hdr;
12046
e6d6e342 12047 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12048 if (!msg)
12049 return;
12050
12051 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12052 if (!hdr) {
12053 nlmsg_free(msg);
12054 return;
12055 }
12056
9360ffd1
DM		 12057 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12058 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12059 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12060 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12061 (key_id != -1 &&
12062 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12063 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12064 goto nla_put_failure;
a3b8b056 12065
3b7b72ee 12066 genlmsg_end(msg, hdr);
a3b8b056 12067
68eb5503 12068 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12069 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12070 return;
12071
12072 nla_put_failure:
12073 genlmsg_cancel(msg, hdr);
12074 nlmsg_free(msg);
12075}
12076
6bad8766
LR		 12077void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12078 struct ieee80211_channel *channel_before,
12079 struct ieee80211_channel *channel_after)
12080{
12081 struct sk_buff *msg;
12082 void *hdr;
12083 struct nlattr *nl_freq;
12084
fd2120ca 12085 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12086 if (!msg)
12087 return;
12088
12089 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12090 if (!hdr) {
12091 nlmsg_free(msg);
12092 return;
12093 }
12094
12095 /*
12096 * Since we are applying the beacon hint to a wiphy we know its
12097 * wiphy_idx is valid
12098 */
9360ffd1
DM		 12099 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12100 goto nla_put_failure;
6bad8766
LR		 12101
12102 /* Before */
12103 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12104 if (!nl_freq)
12105 goto nla_put_failure;
cdc89b97 12106 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12107 goto nla_put_failure;
12108 nla_nest_end(msg, nl_freq);
12109
12110 /* After */
12111 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12112 if (!nl_freq)
12113 goto nla_put_failure;
cdc89b97 12114 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12115 goto nla_put_failure;
12116 nla_nest_end(msg, nl_freq);
12117
3b7b72ee 12118 genlmsg_end(msg, hdr);
6bad8766 12119
463d0183 12120 rcu_read_lock();
68eb5503 12121 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12122 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12123 rcu_read_unlock();
6bad8766
LR		 12124
12125 return;
12126
12127nla_put_failure:
12128 genlmsg_cancel(msg, hdr);
12129 nlmsg_free(msg);
12130}
12131
9588bbd5
JM		 12132static void nl80211_send_remain_on_chan_event(
12133 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12134 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12135 struct ieee80211_channel *chan,
9588bbd5
JM		 12136 unsigned int duration, gfp_t gfp)
12137{
12138 struct sk_buff *msg;
12139 void *hdr;
12140
12141 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12142 if (!msg)
12143 return;
12144
12145 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12146 if (!hdr) {
12147 nlmsg_free(msg);
12148 return;
12149 }
12150
9360ffd1 12151 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12152 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12153 wdev->netdev->ifindex)) ||
00f53350 12154 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 12155 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12156 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12157 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 12158 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
12159 goto nla_put_failure;
9588bbd5 12160
9360ffd1
DM		 12161 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12162 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12163 goto nla_put_failure;
9588bbd5 12164
3b7b72ee 12165 genlmsg_end(msg, hdr);
9588bbd5 12166
68eb5503 12167 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12168 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12169 return;
12170
12171 nla_put_failure:
12172 genlmsg_cancel(msg, hdr);
12173 nlmsg_free(msg);
12174}
12175
947add36
JB		 12176void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12177 struct ieee80211_channel *chan,
12178 unsigned int duration, gfp_t gfp)
9588bbd5 12179{
947add36 12180 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12181 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12182
12183 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12184 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12185 rdev, wdev, cookie, chan,
42d97a59 12186 duration, gfp);
9588bbd5 12187}
947add36 12188EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12189
947add36
JB		 12190void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12191 struct ieee80211_channel *chan,
12192 gfp_t gfp)
9588bbd5 12193{
947add36 12194 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12195 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12196
12197 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12198 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12199 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12200}
947add36 12201EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12202
947add36
JB		 12203void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12204 struct station_info *sinfo, gfp_t gfp)
98b62183 12205{
947add36 12206 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12207 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12208 struct sk_buff *msg;
12209
947add36
JB		 12210 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12211
58050fce 12212 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12213 if (!msg)
12214 return;
12215
cf5ead82 12216 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12217 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12218 nlmsg_free(msg);
12219 return;
12220 }
12221
68eb5503 12222 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12223 NL80211_MCGRP_MLME, gfp);
98b62183 12224}
947add36 12225EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12226
cf5ead82
JB		 12227void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12228 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12229{
947add36 12230 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12231 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12232 struct sk_buff *msg;
cf5ead82
JB		 12233 struct station_info empty_sinfo = {};
12234
12235 if (!sinfo)
12236 sinfo = &empty_sinfo;
ec15e68b 12237
947add36
JB		 12238 trace_cfg80211_del_sta(dev, mac_addr);
12239
58050fce 12240 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12241 if (!msg)
12242 return;
12243
cf5ead82 12244 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12245 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12246 nlmsg_free(msg);
12247 return;
12248 }
12249
68eb5503 12250 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12251 NL80211_MCGRP_MLME, gfp);
ec15e68b 12252}
cf5ead82 12253EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12254
947add36
JB		 12255void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12256 enum nl80211_connect_failed_reason reason,
12257 gfp_t gfp)
ed44a951 12258{
947add36 12259 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12260 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12261 struct sk_buff *msg;
12262 void *hdr;
12263
12264 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12265 if (!msg)
12266 return;
12267
12268 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12269 if (!hdr) {
12270 nlmsg_free(msg);
12271 return;
12272 }
12273
12274 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12275 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12276 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12277 goto nla_put_failure;
12278
12279 genlmsg_end(msg, hdr);
12280
68eb5503 12281 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12282 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12283 return;
12284
12285 nla_put_failure:
12286 genlmsg_cancel(msg, hdr);
12287 nlmsg_free(msg);
12288}
947add36 12289EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12290
b92ab5d8
JB		 12291static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12292 const u8 *addr, gfp_t gfp)
28946da7
JB		 12293{
12294 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12295 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12296 struct sk_buff *msg;
12297 void *hdr;
15e47304 12298 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12299
15e47304 12300 if (!nlportid)
28946da7
JB		 12301 return false;
12302
12303 msg = nlmsg_new(100, gfp);
12304 if (!msg)
12305 return true;
12306
b92ab5d8 12307 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12308 if (!hdr) {
12309 nlmsg_free(msg);
12310 return true;
12311 }
12312
9360ffd1
DM		 12313 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12314 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12315 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12316 goto nla_put_failure;
28946da7 12317
9c90a9f6 12318 genlmsg_end(msg, hdr);
15e47304 12319 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12320 return true;
12321
12322 nla_put_failure:
12323 genlmsg_cancel(msg, hdr);
12324 nlmsg_free(msg);
12325 return true;
12326}
12327
947add36
JB		 12328bool cfg80211_rx_spurious_frame(struct net_device *dev,
12329 const u8 *addr, gfp_t gfp)
b92ab5d8 12330{
947add36
JB		 12331 struct wireless_dev *wdev = dev->ieee80211_ptr;
12332 bool ret;
12333
12334 trace_cfg80211_rx_spurious_frame(dev, addr);
12335
12336 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12337 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12338 trace_cfg80211_return_bool(false);
12339 return false;
12340 }
12341 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12342 addr, gfp);
12343 trace_cfg80211_return_bool(ret);
12344 return ret;
b92ab5d8 12345}
947add36 12346EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12347
947add36
JB		 12348bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12349 const u8 *addr, gfp_t gfp)
b92ab5d8 12350{
947add36
JB		 12351 struct wireless_dev *wdev = dev->ieee80211_ptr;
12352 bool ret;
12353
12354 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12355
12356 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12357 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12358 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12359 trace_cfg80211_return_bool(false);
12360 return false;
12361 }
12362 ret = __nl80211_unexpected_frame(dev,
12363 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12364 addr, gfp);
12365 trace_cfg80211_return_bool(ret);
12366 return ret;
b92ab5d8 12367}
947add36 12368EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12369
2e161f78 12370int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12371 struct wireless_dev *wdev, u32 nlportid,
804483e9 12372 int freq, int sig_dbm,
19504cf5 12373 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12374{
71bbc994 12375 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12376 struct sk_buff *msg;
12377 void *hdr;
026331c4
JM		 12378
12379 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12380 if (!msg)
12381 return -ENOMEM;
12382
2e161f78 12383 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12384 if (!hdr) {
12385 nlmsg_free(msg);
12386 return -ENOMEM;
12387 }
12388
9360ffd1 12389 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12390 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12391 netdev->ifindex)) ||
a838490b 12392 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12393 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12394 (sig_dbm &&
12395 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12396 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12397 (flags &&
12398 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12399 goto nla_put_failure;
026331c4 12400
3b7b72ee 12401 genlmsg_end(msg, hdr);
026331c4 12402
15e47304 12403 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12404
12405 nla_put_failure:
12406 genlmsg_cancel(msg, hdr);
12407 nlmsg_free(msg);
12408 return -ENOBUFS;
12409}
12410
947add36
JB		 12411void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12412 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12413{
947add36 12414 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12415 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12416 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12417 struct sk_buff *msg;
12418 void *hdr;
12419
947add36
JB		 12420 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12421
026331c4
JM		 12422 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12423 if (!msg)
12424 return;
12425
2e161f78 12426 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12427 if (!hdr) {
12428 nlmsg_free(msg);
12429 return;
12430 }
12431
9360ffd1 12432 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12433 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12434 netdev->ifindex)) ||
a838490b 12435 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12436 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12437 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12438 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12439 goto nla_put_failure;
026331c4 12440
3b7b72ee 12441 genlmsg_end(msg, hdr);
026331c4 12442
68eb5503 12443 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12444 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12445 return;
12446
12447 nla_put_failure:
12448 genlmsg_cancel(msg, hdr);
12449 nlmsg_free(msg);
12450}
947add36 12451EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12452
5b97f49d
JB		 12453static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12454 const char *mac, gfp_t gfp)
d6dc1a38 12455{
947add36 12456 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12457 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12458 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12459 void **cb;
947add36 12460
d6dc1a38 12461 if (!msg)
5b97f49d 12462 return NULL;
d6dc1a38 12463
5b97f49d
JB		 12464 cb = (void **)msg->cb;
12465
12466 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12467 if (!cb[0]) {
d6dc1a38 12468 nlmsg_free(msg);
5b97f49d 12469 return NULL;
d6dc1a38
JO		 12470 }
12471
9360ffd1 12472 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12473 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12474 goto nla_put_failure;
d6dc1a38 12475
5b97f49d 12476 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12477 goto nla_put_failure;
12478
5b97f49d
JB		 12479 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12480 if (!cb[1])
9360ffd1 12481 goto nla_put_failure;
d6dc1a38 12482
5b97f49d 12483 cb[2] = rdev;
d6dc1a38 12484
5b97f49d
JB		 12485 return msg;
12486 nla_put_failure:
12487 nlmsg_free(msg);
12488 return NULL;
12489}
12490
12491static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12492{
12493 void **cb = (void **)msg->cb;
12494 struct cfg80211_registered_device *rdev = cb[2];
12495
12496 nla_nest_end(msg, cb[1]);
12497 genlmsg_end(msg, cb[0]);
12498
12499 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12500
68eb5503 12501 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12502 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12503}
12504
12505void cfg80211_cqm_rssi_notify(struct net_device *dev,
12506 enum nl80211_cqm_rssi_threshold_event rssi_event,
12507 gfp_t gfp)
12508{
12509 struct sk_buff *msg;
12510
12511 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12512
98f03342
JB		 12513 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12514 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12515 return;
12516
5b97f49d
JB		 12517 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12518 if (!msg)
12519 return;
12520
12521 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12522 rssi_event))
12523 goto nla_put_failure;
12524
12525 cfg80211_send_cqm(msg, gfp);
12526
d6dc1a38
JO		 12527 return;
12528
12529 nla_put_failure:
d6dc1a38
JO		 12530 nlmsg_free(msg);
12531}
947add36 12532EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12533
5b97f49d
JB		 12534void cfg80211_cqm_txe_notify(struct net_device *dev,
12535 const u8 *peer, u32 num_packets,
12536 u32 rate, u32 intvl, gfp_t gfp)
12537{
12538 struct sk_buff *msg;
12539
12540 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12541 if (!msg)
12542 return;
12543
12544 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12545 goto nla_put_failure;
12546
12547 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12548 goto nla_put_failure;
12549
12550 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12551 goto nla_put_failure;
12552
12553 cfg80211_send_cqm(msg, gfp);
12554 return;
12555
12556 nla_put_failure:
12557 nlmsg_free(msg);
12558}
12559EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12560
12561void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12562 const u8 *peer, u32 num_packets, gfp_t gfp)
12563{
12564 struct sk_buff *msg;
12565
12566 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12567
12568 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12569 if (!msg)
12570 return;
12571
12572 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12573 goto nla_put_failure;
12574
12575 cfg80211_send_cqm(msg, gfp);
12576 return;
12577
12578 nla_put_failure:
12579 nlmsg_free(msg);
12580}
12581EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12582
98f03342
JB		 12583void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12584{
12585 struct sk_buff *msg;
12586
12587 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12588 if (!msg)
12589 return;
12590
12591 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12592 goto nla_put_failure;
12593
12594 cfg80211_send_cqm(msg, gfp);
12595 return;
12596
12597 nla_put_failure:
12598 nlmsg_free(msg);
12599}
12600EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12601
947add36
JB		 12602static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12603 struct net_device *netdev, const u8 *bssid,
12604 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12605{
12606 struct sk_buff *msg;
12607 struct nlattr *rekey_attr;
12608 void *hdr;
12609
58050fce 12610 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12611 if (!msg)
12612 return;
12613
12614 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12615 if (!hdr) {
12616 nlmsg_free(msg);
12617 return;
12618 }
12619
9360ffd1
DM		 12620 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12621 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12622 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12623 goto nla_put_failure;
e5497d76
JB		 12624
12625 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12626 if (!rekey_attr)
12627 goto nla_put_failure;
12628
9360ffd1
DM		 12629 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12630 NL80211_REPLAY_CTR_LEN, replay_ctr))
12631 goto nla_put_failure;
e5497d76
JB		 12632
12633 nla_nest_end(msg, rekey_attr);
12634
3b7b72ee 12635 genlmsg_end(msg, hdr);
e5497d76 12636
68eb5503 12637 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12638 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12639 return;
12640
12641 nla_put_failure:
12642 genlmsg_cancel(msg, hdr);
12643 nlmsg_free(msg);
12644}
12645
947add36
JB		 12646void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12647 const u8 *replay_ctr, gfp_t gfp)
12648{
12649 struct wireless_dev *wdev = dev->ieee80211_ptr;
12650 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12651 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12652
12653 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12654 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12655}
12656EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12657
12658static void
12659nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12660 struct net_device *netdev, int index,
12661 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12662{
12663 struct sk_buff *msg;
12664 struct nlattr *attr;
12665 void *hdr;
12666
58050fce 12667 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12668 if (!msg)
12669 return;
12670
12671 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12672 if (!hdr) {
12673 nlmsg_free(msg);
12674 return;
12675 }
12676
9360ffd1
DM		 12677 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12678 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12679 goto nla_put_failure;
c9df56b4
JM		 12680
12681 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12682 if (!attr)
12683 goto nla_put_failure;
12684
9360ffd1
DM		 12685 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12686 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12687 (preauth &&
12688 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12689 goto nla_put_failure;
c9df56b4
JM		 12690
12691 nla_nest_end(msg, attr);
12692
3b7b72ee 12693 genlmsg_end(msg, hdr);
c9df56b4 12694
68eb5503 12695 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12696 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12697 return;
12698
12699 nla_put_failure:
12700 genlmsg_cancel(msg, hdr);
12701 nlmsg_free(msg);
12702}
12703
947add36
JB		 12704void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12705 const u8 *bssid, bool preauth, gfp_t gfp)
12706{
12707 struct wireless_dev *wdev = dev->ieee80211_ptr;
12708 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12709 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12710
12711 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12712 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12713}
12714EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12715
12716static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12717 struct net_device *netdev,
12718 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12719 gfp_t gfp,
12720 enum nl80211_commands notif,
12721 u8 count)
5314526b
TP		 12722{
12723 struct sk_buff *msg;
12724 void *hdr;
12725
58050fce 12726 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12727 if (!msg)
12728 return;
12729
f8d7552e 12730 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12731 if (!hdr) {
12732 nlmsg_free(msg);
12733 return;
12734 }
12735
683b6d3b
JB		 12736 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12737 goto nla_put_failure;
12738
12739 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12740 goto nla_put_failure;
5314526b 12741
f8d7552e
LC		 12742 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12743 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12744 goto nla_put_failure;
12745
5314526b
TP		 12746 genlmsg_end(msg, hdr);
12747
68eb5503 12748 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12749 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12750 return;
12751
12752 nla_put_failure:
12753 genlmsg_cancel(msg, hdr);
12754 nlmsg_free(msg);
12755}
12756
947add36
JB		 12757void cfg80211_ch_switch_notify(struct net_device *dev,
12758 struct cfg80211_chan_def *chandef)
84f10708 12759{
947add36
JB		 12760 struct wireless_dev *wdev = dev->ieee80211_ptr;
12761 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12762 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12763
e487eaeb 12764 ASSERT_WDEV_LOCK(wdev);
947add36 12765
e487eaeb 12766 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12767
9e0e2961 12768 wdev->chandef = *chandef;
96f55f12 12769 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12770 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12771 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12772}
12773EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12774
f8d7552e
LC		 12775void cfg80211_ch_switch_started_notify(struct net_device *dev,
12776 struct cfg80211_chan_def *chandef,
12777 u8 count)
12778{
12779 struct wireless_dev *wdev = dev->ieee80211_ptr;
12780 struct wiphy *wiphy = wdev->wiphy;
12781 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12782
12783 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12784
12785 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12786 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12787}
12788EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12789
04f39047
SW		 12790void
12791nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12792 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12793 enum nl80211_radar_event event,
12794 struct net_device *netdev, gfp_t gfp)
12795{
12796 struct sk_buff *msg;
12797 void *hdr;
12798
12799 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12800 if (!msg)
12801 return;
12802
12803 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12804 if (!hdr) {
12805 nlmsg_free(msg);
12806 return;
12807 }
12808
12809 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12810 goto nla_put_failure;
12811
12812 /* NOP and radar events don't need a netdev parameter */
12813 if (netdev) {
12814 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12815
12816 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12817 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12818 goto nla_put_failure;
12819 }
12820
12821 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12822 goto nla_put_failure;
12823
12824 if (nl80211_send_chandef(msg, chandef))
12825 goto nla_put_failure;
12826
9c90a9f6 12827 genlmsg_end(msg, hdr);
04f39047 12828
68eb5503 12829 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12830 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12831 return;
12832
12833 nla_put_failure:
12834 genlmsg_cancel(msg, hdr);
12835 nlmsg_free(msg);
12836}
12837
7f6cf311
JB		 12838void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12839 u64 cookie, bool acked, gfp_t gfp)
12840{
12841 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12842 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12843 struct sk_buff *msg;
12844 void *hdr;
7f6cf311 12845
4ee3e063
BL		 12846 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12847
58050fce 12848 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12849
7f6cf311
JB		 12850 if (!msg)
12851 return;
12852
12853 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12854 if (!hdr) {
12855 nlmsg_free(msg);
12856 return;
12857 }
12858
9360ffd1
DM		 12859 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12860 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12861 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12862 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12863 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12864 goto nla_put_failure;
7f6cf311 12865
9c90a9f6 12866 genlmsg_end(msg, hdr);
7f6cf311 12867
68eb5503 12868 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12869 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12870 return;
12871
12872 nla_put_failure:
12873 genlmsg_cancel(msg, hdr);
12874 nlmsg_free(msg);
12875}
12876EXPORT_SYMBOL(cfg80211_probe_status);
12877
5e760230
JB		 12878void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12879 const u8 *frame, size_t len,
37c73b5f 12880 int freq, int sig_dbm)
5e760230 12881{
f26cbf40 12882 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12883 struct sk_buff *msg;
12884 void *hdr;
37c73b5f 12885 struct cfg80211_beacon_registration *reg;
5e760230 12886
4ee3e063
BL		 12887 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12888
37c73b5f
BG		 12889 spin_lock_bh(&rdev->beacon_registrations_lock);
12890 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12891 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12892 if (!msg) {
12893 spin_unlock_bh(&rdev->beacon_registrations_lock);
12894 return;
12895 }
5e760230 12896
37c73b5f
BG		 12897 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12898 if (!hdr)
12899 goto nla_put_failure;
5e760230 12900
37c73b5f
BG		 12901 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12902 (freq &&
12903 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12904 (sig_dbm &&
12905 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12906 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12907 goto nla_put_failure;
5e760230 12908
37c73b5f 12909 genlmsg_end(msg, hdr);
5e760230 12910
37c73b5f
BG		 12911 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12912 }
12913 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12914 return;
12915
12916 nla_put_failure:
37c73b5f
BG		 12917 spin_unlock_bh(&rdev->beacon_registrations_lock);
12918 if (hdr)
12919 genlmsg_cancel(msg, hdr);
5e760230
JB		 12920 nlmsg_free(msg);
12921}
12922EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12923
cd8f7cb4 12924#ifdef CONFIG_PM
8cd4d456
LC		 12925static int cfg80211_net_detect_results(struct sk_buff *msg,
12926 struct cfg80211_wowlan_wakeup *wakeup)
12927{
12928 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12929 struct nlattr *nl_results, *nl_match, *nl_freqs;
12930 int i, j;
12931
12932 nl_results = nla_nest_start(
12933 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12934 if (!nl_results)
12935 return -EMSGSIZE;
12936
12937 for (i = 0; i < nd->n_matches; i++) {
12938 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12939
12940 nl_match = nla_nest_start(msg, i);
12941 if (!nl_match)
12942 break;
12943
12944 /* The SSID attribute is optional in nl80211, but for
12945 * simplicity reasons it's always present in the
12946 * cfg80211 structure. If a driver can't pass the
12947 * SSID, that needs to be changed. A zero length SSID
12948 * is still a valid SSID (wildcard), so it cannot be
12949 * used for this purpose.
12950 */
12951 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12952 match->ssid.ssid)) {
12953 nla_nest_cancel(msg, nl_match);
12954 goto out;
12955 }
12956
12957 if (match->n_channels) {
12958 nl_freqs = nla_nest_start(
12959 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12960 if (!nl_freqs) {
12961 nla_nest_cancel(msg, nl_match);
12962 goto out;
12963 }
12964
12965 for (j = 0; j < match->n_channels; j++) {
5528fae8 12966 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 12967 nla_nest_cancel(msg, nl_freqs);
12968 nla_nest_cancel(msg, nl_match);
12969 goto out;
12970 }
12971 }
12972
12973 nla_nest_end(msg, nl_freqs);
12974 }
12975
12976 nla_nest_end(msg, nl_match);
12977 }
12978
12979out:
12980 nla_nest_end(msg, nl_results);
12981 return 0;
12982}
12983
cd8f7cb4
JB		 12984void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12985 struct cfg80211_wowlan_wakeup *wakeup,
12986 gfp_t gfp)
12987{
f26cbf40 12988 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12989 struct sk_buff *msg;
12990 void *hdr;
9c90a9f6 12991 int size = 200;
cd8f7cb4
JB		 12992
12993 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12994
12995 if (wakeup)
12996 size += wakeup->packet_present_len;
12997
12998 msg = nlmsg_new(size, gfp);
12999 if (!msg)
13000 return;
13001
13002 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13003 if (!hdr)
13004 goto free_msg;
13005
13006 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13007 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13008 goto free_msg;
13009
13010 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13011 wdev->netdev->ifindex))
13012 goto free_msg;
13013
13014 if (wakeup) {
13015 struct nlattr *reasons;
13016
13017 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13018 if (!reasons)
13019 goto free_msg;
cd8f7cb4
JB		 13020
13021 if (wakeup->disconnect &&
13022 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13023 goto free_msg;
13024 if (wakeup->magic_pkt &&
13025 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13026 goto free_msg;
13027 if (wakeup->gtk_rekey_failure &&
13028 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13029 goto free_msg;
13030 if (wakeup->eap_identity_req &&
13031 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13032 goto free_msg;
13033 if (wakeup->four_way_handshake &&
13034 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13035 goto free_msg;
13036 if (wakeup->rfkill_release &&
13037 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13038 goto free_msg;
13039
13040 if (wakeup->pattern_idx >= 0 &&
13041 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13042 wakeup->pattern_idx))
13043 goto free_msg;
13044
ae917c9f
JB		 13045 if (wakeup->tcp_match &&
13046 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13047 goto free_msg;
2a0e047e 13048
ae917c9f
JB		 13049 if (wakeup->tcp_connlost &&
13050 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13051 goto free_msg;
2a0e047e 13052
ae917c9f
JB		 13053 if (wakeup->tcp_nomoretokens &&
13054 nla_put_flag(msg,
13055 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13056 goto free_msg;
2a0e047e 13057
cd8f7cb4
JB		 13058 if (wakeup->packet) {
13059 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13060 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13061
13062 if (!wakeup->packet_80211) {
13063 pkt_attr =
13064 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13065 len_attr =
13066 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13067 }
13068
13069 if (wakeup->packet_len &&
13070 nla_put_u32(msg, len_attr, wakeup->packet_len))
13071 goto free_msg;
13072
13073 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13074 wakeup->packet))
13075 goto free_msg;
13076 }
13077
8cd4d456
LC		 13078 if (wakeup->net_detect &&
13079 cfg80211_net_detect_results(msg, wakeup))
13080 goto free_msg;
13081
cd8f7cb4
JB		 13082 nla_nest_end(msg, reasons);
13083 }
13084
9c90a9f6 13085 genlmsg_end(msg, hdr);
cd8f7cb4 13086
68eb5503 13087 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13088 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13089 return;
13090
13091 free_msg:
13092 nlmsg_free(msg);
13093}
13094EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13095#endif
13096
3475b094
JM		 13097void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13098 enum nl80211_tdls_operation oper,
13099 u16 reason_code, gfp_t gfp)
13100{
13101 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13102 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13103 struct sk_buff *msg;
13104 void *hdr;
3475b094
JM		 13105
13106 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13107 reason_code);
13108
13109 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13110 if (!msg)
13111 return;
13112
13113 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13114 if (!hdr) {
13115 nlmsg_free(msg);
13116 return;
13117 }
13118
13119 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13120 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13121 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13122 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13123 (reason_code > 0 &&
13124 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13125 goto nla_put_failure;
13126
9c90a9f6 13127 genlmsg_end(msg, hdr);
3475b094 13128
68eb5503 13129 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13130 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13131 return;
13132
13133 nla_put_failure:
13134 genlmsg_cancel(msg, hdr);
13135 nlmsg_free(msg);
13136}
13137EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13138
026331c4
JM		 13139static int nl80211_netlink_notify(struct notifier_block * nb,
13140 unsigned long state,
13141 void *_notify)
13142{
13143 struct netlink_notify *notify = _notify;
13144 struct cfg80211_registered_device *rdev;
13145 struct wireless_dev *wdev;
37c73b5f 13146 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 13147
13148 if (state != NETLINK_URELEASE)
13149 return NOTIFY_DONE;
13150
13151 rcu_read_lock();
13152
5e760230 13153 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13154 bool schedule_destroy_work = false;
93a1e86c
JR		 13155 bool schedule_scan_stop = false;
13156 struct cfg80211_sched_scan_request *sched_scan_req =
13157 rcu_dereference(rdev->sched_scan_req);
13158
13159 if (sched_scan_req && notify->portid &&
13160 sched_scan_req->owner_nlportid == notify->portid)
13161 schedule_scan_stop = true;
78f22b6a
JB		 13162
13163 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 13164 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13165
78f22b6a
JB		 13166 if (wdev->owner_nlportid == notify->portid)
13167 schedule_destroy_work = true;
13168 }
13169
37c73b5f
BG		 13170 spin_lock_bh(&rdev->beacon_registrations_lock);
13171 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13172 list) {
13173 if (reg->nlportid == notify->portid) {
13174 list_del(&reg->list);
13175 kfree(reg);
13176 break;
13177 }
13178 }
13179 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13180
13181 if (schedule_destroy_work) {
13182 struct cfg80211_iface_destroy *destroy;
13183
13184 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13185 if (destroy) {
13186 destroy->nlportid = notify->portid;
13187 spin_lock(&rdev->destroy_list_lock);
13188 list_add(&destroy->list, &rdev->destroy_list);
13189 spin_unlock(&rdev->destroy_list_lock);
13190 schedule_work(&rdev->destroy_work);
13191 }
93a1e86c
JR		 13192 } else if (schedule_scan_stop) {
13193 sched_scan_req->owner_nlportid = 0;
13194
13195 if (rdev->ops->sched_scan_stop &&
13196 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13197 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13198 }
5e760230 13199 }
026331c4
JM		 13200
13201 rcu_read_unlock();
13202
05050753
I		 13203 /*
13204 * It is possible that the user space process that is controlling the
13205 * indoor setting disappeared, so notify the regulatory core.
13206 */
13207 regulatory_netlink_notify(notify->portid);
6784c7db 13208 return NOTIFY_OK;
026331c4
JM		 13209}
13210
13211static struct notifier_block nl80211_netlink_notifier = {
13212 .notifier_call = nl80211_netlink_notify,
13213};
13214
355199e0
JM		 13215void cfg80211_ft_event(struct net_device *netdev,
13216 struct cfg80211_ft_event_params *ft_event)
13217{
13218 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13219 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13220 struct sk_buff *msg;
13221 void *hdr;
355199e0
JM		 13222
13223 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13224
13225 if (!ft_event->target_ap)
13226 return;
13227
13228 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13229 if (!msg)
13230 return;
13231
13232 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13233 if (!hdr)
13234 goto out;
355199e0 13235
ae917c9f
JB		 13236 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13237 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13238 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13239 goto out;
355199e0 13240
ae917c9f
JB		 13241 if (ft_event->ies &&
13242 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13243 goto out;
13244 if (ft_event->ric_ies &&
13245 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13246 ft_event->ric_ies))
13247 goto out;
355199e0 13248
9c90a9f6 13249 genlmsg_end(msg, hdr);
355199e0 13250
68eb5503 13251 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13252 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13253 return;
13254 out:
13255 nlmsg_free(msg);
355199e0
JM		 13256}
13257EXPORT_SYMBOL(cfg80211_ft_event);
13258
5de17984
AS		 13259void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13260{
13261 struct cfg80211_registered_device *rdev;
13262 struct sk_buff *msg;
13263 void *hdr;
13264 u32 nlportid;
13265
f26cbf40 13266 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13267 if (!rdev->crit_proto_nlportid)
13268 return;
13269
13270 nlportid = rdev->crit_proto_nlportid;
13271 rdev->crit_proto_nlportid = 0;
13272
13273 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13274 if (!msg)
13275 return;
13276
13277 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13278 if (!hdr)
13279 goto nla_put_failure;
13280
13281 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13282 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13283 goto nla_put_failure;
13284
13285 genlmsg_end(msg, hdr);
13286
13287 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13288 return;
13289
13290 nla_put_failure:
13291 if (hdr)
13292 genlmsg_cancel(msg, hdr);
13293 nlmsg_free(msg);
13294
13295}
13296EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13297
348baf0e
JB		 13298void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13299{
13300 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13301 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13302 struct sk_buff *msg;
13303 void *hdr;
13304
13305 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13306 if (!msg)
13307 return;
13308
13309 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13310 if (!hdr)
13311 goto out;
13312
13313 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13314 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13315 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13316 goto out;
13317
13318 genlmsg_end(msg, hdr);
13319
13320 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13321 NL80211_MCGRP_MLME, GFP_KERNEL);
13322 return;
13323 out:
13324 nlmsg_free(msg);
13325}
13326
55682965
JB		 13327/* initialisation/exit functions */
13328
13329int nl80211_init(void)
13330{
0d63cbb5 13331 int err;
55682965 13332
2a94fe48
JB		 13333 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13334 nl80211_mcgrps);
55682965
JB		 13335 if (err)
13336 return err;
13337
026331c4
JM		 13338 err = netlink_register_notifier(&nl80211_netlink_notifier);
13339 if (err)
13340 goto err_out;
13341
55682965
JB		 13342 return 0;
13343 err_out:
13344 genl_unregister_family(&nl80211_fam);
13345 return err;
13346}
13347
13348void nl80211_exit(void)
13349{
026331c4 13350 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13351 genl_unregister_family(&nl80211_fam);
13352}
Linux kernel - Deliverables
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