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mac80211: allow writing TX PN in debugfs
[mirror_ubuntu-focal-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
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
97990a06
JB		 482static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
483 struct netlink_callback *cb,
484 struct cfg80211_registered_device **rdev,
485 struct wireless_dev **wdev)
a043897a 486{
97990a06 487 int err;
a043897a 488
97990a06 489 rtnl_lock();
a043897a 490
97990a06
JB		 491 if (!cb->args[0]) {
492 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
493 nl80211_fam.attrbuf, nl80211_fam.maxattr,
494 nl80211_policy);
495 if (err)
496 goto out_unlock;
67748893 497
97990a06
JB		 498 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
499 nl80211_fam.attrbuf);
500 if (IS_ERR(*wdev)) {
501 err = PTR_ERR(*wdev);
502 goto out_unlock;
503 }
f26cbf40 504 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 505 /* 0 is the first index - add 1 to parse only once */
506 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 507 cb->args[1] = (*wdev)->identifier;
508 } else {
c319d50b
JB		 509 /* subtract the 1 again here */
510 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 511 struct wireless_dev *tmp;
67748893 512
97990a06
JB		 513 if (!wiphy) {
514 err = -ENODEV;
515 goto out_unlock;
516 }
f26cbf40 517 *rdev = wiphy_to_rdev(wiphy);
97990a06 518 *wdev = NULL;
67748893 519
97990a06
JB		 520 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
521 if (tmp->identifier == cb->args[1]) {
522 *wdev = tmp;
523 break;
524 }
525 }
67748893 526
97990a06
JB		 527 if (!*wdev) {
528 err = -ENODEV;
529 goto out_unlock;
530 }
67748893
JB		 531 }
532
67748893 533 return 0;
97990a06 534 out_unlock:
67748893
JB		 535 rtnl_unlock();
536 return err;
537}
538
97990a06 539static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 540{
67748893
JB		 541 rtnl_unlock();
542}
543
f4a11bb0
JB		 544/* IE validation */
545static bool is_valid_ie_attr(const struct nlattr *attr)
546{
547 const u8 *pos;
548 int len;
549
550 if (!attr)
551 return true;
552
553 pos = nla_data(attr);
554 len = nla_len(attr);
555
556 while (len) {
557 u8 elemlen;
558
559 if (len < 2)
560 return false;
561 len -= 2;
562
563 elemlen = pos[1];
564 if (elemlen > len)
565 return false;
566
567 len -= elemlen;
568 pos += 2 + elemlen;
569 }
570
571 return true;
572}
573
55682965 574/* message building helper */
15e47304 575static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 576 int flags, u8 cmd)
577{
578 /* since there is no private header just add the generic one */
15e47304 579 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 580}
581
5dab3b8a 582static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 583 struct ieee80211_channel *chan,
584 bool large)
5dab3b8a 585{
ea077c1c
RL		 586 /* Some channels must be completely excluded from the
587 * list to protect old user-space tools from breaking
588 */
589 if (!large && chan->flags &
590 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
591 return 0;
592
9360ffd1
DM		 593 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
594 chan->center_freq))
595 goto nla_put_failure;
5dab3b8a 596
9360ffd1
DM		 597 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
598 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
599 goto nla_put_failure;
8fe02e16
LR		 600 if (chan->flags & IEEE80211_CHAN_NO_IR) {
601 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
602 goto nla_put_failure;
603 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
604 goto nla_put_failure;
605 }
cdc89b97
JB		 606 if (chan->flags & IEEE80211_CHAN_RADAR) {
607 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
608 goto nla_put_failure;
609 if (large) {
610 u32 time;
611
612 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
613
614 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
615 chan->dfs_state))
616 goto nla_put_failure;
617 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
618 time))
619 goto nla_put_failure;
089027e5
JD		 620 if (nla_put_u32(msg,
621 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
622 chan->dfs_cac_ms))
623 goto nla_put_failure;
cdc89b97
JB		 624 }
625 }
5dab3b8a 626
fe1abafd
JB		 627 if (large) {
628 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
629 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
630 goto nla_put_failure;
631 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
632 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
633 goto nla_put_failure;
634 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
635 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
636 goto nla_put_failure;
637 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
638 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
639 goto nla_put_failure;
570dbde1
DS		 640 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
641 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
642 goto nla_put_failure;
06f207fc
AN		 643 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
644 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 645 goto nla_put_failure;
ea077c1c
RL		 646 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
647 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
648 goto nla_put_failure;
649 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
650 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
651 goto nla_put_failure;
fe1abafd
JB		 652 }
653
9360ffd1
DM		 654 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
655 DBM_TO_MBM(chan->max_power)))
656 goto nla_put_failure;
5dab3b8a
LR		 657
658 return 0;
659
660 nla_put_failure:
661 return -ENOBUFS;
662}
663
55682965
JB		 664/* netlink command implementations */
665
b9454e83
JB		 666struct key_parse {
667 struct key_params p;
668 int idx;
e31b8213 669 int type;
b9454e83 670 bool def, defmgmt;
dbd2fd65 671 bool def_uni, def_multi;
b9454e83
JB		 672};
673
674static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
675{
676 struct nlattr *tb[NL80211_KEY_MAX + 1];
677 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
678 nl80211_key_policy);
679 if (err)
680 return err;
681
682 k->def = !!tb[NL80211_KEY_DEFAULT];
683 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
684
dbd2fd65
JB		 685 if (k->def) {
686 k->def_uni = true;
687 k->def_multi = true;
688 }
689 if (k->defmgmt)
690 k->def_multi = true;
691
b9454e83
JB		 692 if (tb[NL80211_KEY_IDX])
693 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
694
695 if (tb[NL80211_KEY_DATA]) {
696 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
697 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
698 }
699
700 if (tb[NL80211_KEY_SEQ]) {
701 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
702 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
703 }
704
705 if (tb[NL80211_KEY_CIPHER])
706 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
707
e31b8213
JB		 708 if (tb[NL80211_KEY_TYPE]) {
709 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
710 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
711 return -EINVAL;
712 }
713
dbd2fd65
JB		 714 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
715 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 716 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
717 tb[NL80211_KEY_DEFAULT_TYPES],
718 nl80211_key_default_policy);
dbd2fd65
JB		 719 if (err)
720 return err;
721
722 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
723 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
724 }
725
b9454e83
JB		 726 return 0;
727}
728
729static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
730{
731 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
732 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
733 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
734 }
735
736 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
737 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
738 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
739 }
740
741 if (info->attrs[NL80211_ATTR_KEY_IDX])
742 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
743
744 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
745 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
746
747 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
748 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
749
dbd2fd65
JB		 750 if (k->def) {
751 k->def_uni = true;
752 k->def_multi = true;
753 }
754 if (k->defmgmt)
755 k->def_multi = true;
756
e31b8213
JB		 757 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
758 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
759 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
760 return -EINVAL;
761 }
762
dbd2fd65
JB		 763 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
764 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
765 int err = nla_parse_nested(
766 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
767 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
768 nl80211_key_default_policy);
769 if (err)
770 return err;
771
772 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
773 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
774 }
775
b9454e83
JB		 776 return 0;
777}
778
779static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
780{
781 int err;
782
783 memset(k, 0, sizeof(*k));
784 k->idx = -1;
e31b8213 785 k->type = -1;
b9454e83
JB		 786
787 if (info->attrs[NL80211_ATTR_KEY])
788 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
789 else
790 err = nl80211_parse_key_old(info, k);
791
792 if (err)
793 return err;
794
795 if (k->def && k->defmgmt)
796 return -EINVAL;
797
dbd2fd65
JB		 798 if (k->defmgmt) {
799 if (k->def_uni || !k->def_multi)
800 return -EINVAL;
801 }
802
b9454e83
JB		 803 if (k->idx != -1) {
804 if (k->defmgmt) {
805 if (k->idx < 4 || k->idx > 5)
806 return -EINVAL;
807 } else if (k->def) {
808 if (k->idx < 0 || k->idx > 3)
809 return -EINVAL;
810 } else {
811 if (k->idx < 0 || k->idx > 5)
812 return -EINVAL;
813 }
814 }
815
816 return 0;
817}
818
fffd0934
JB		 819static struct cfg80211_cached_keys *
820nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 821 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 822{
823 struct key_parse parse;
824 struct nlattr *key;
825 struct cfg80211_cached_keys *result;
826 int rem, err, def = 0;
827
828 result = kzalloc(sizeof(*result), GFP_KERNEL);
829 if (!result)
830 return ERR_PTR(-ENOMEM);
831
832 result->def = -1;
833 result->defmgmt = -1;
834
835 nla_for_each_nested(key, keys, rem) {
836 memset(&parse, 0, sizeof(parse));
837 parse.idx = -1;
838
839 err = nl80211_parse_key_new(key, &parse);
840 if (err)
841 goto error;
842 err = -EINVAL;
843 if (!parse.p.key)
844 goto error;
845 if (parse.idx < 0 || parse.idx > 4)
846 goto error;
847 if (parse.def) {
848 if (def)
849 goto error;
850 def = 1;
851 result->def = parse.idx;
dbd2fd65
JB		 852 if (!parse.def_uni || !parse.def_multi)
853 goto error;
fffd0934
JB		 854 } else if (parse.defmgmt)
855 goto error;
856 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 857 parse.idx, false, NULL);
fffd0934
JB		 858 if (err)
859 goto error;
860 result->params[parse.idx].cipher = parse.p.cipher;
861 result->params[parse.idx].key_len = parse.p.key_len;
862 result->params[parse.idx].key = result->data[parse.idx];
863 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 864
865 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
866 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
867 if (no_ht)
868 *no_ht = true;
869 }
fffd0934
JB		 870 }
871
872 return result;
873 error:
874 kfree(result);
875 return ERR_PTR(err);
876}
877
878static int nl80211_key_allowed(struct wireless_dev *wdev)
879{
880 ASSERT_WDEV_LOCK(wdev);
881
fffd0934
JB		 882 switch (wdev->iftype) {
883 case NL80211_IFTYPE_AP:
884 case NL80211_IFTYPE_AP_VLAN:
074ac8df 885 case NL80211_IFTYPE_P2P_GO:
ff973af7 886 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 887 break;
888 case NL80211_IFTYPE_ADHOC:
fffd0934 889 case NL80211_IFTYPE_STATION:
074ac8df 890 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 891 if (!wdev->current_bss)
fffd0934
JB		 892 return -ENOLINK;
893 break;
de4fcbad 894 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 895 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 896 case NL80211_IFTYPE_MONITOR:
897 case NL80211_IFTYPE_P2P_DEVICE:
898 case NL80211_IFTYPE_WDS:
899 case NUM_NL80211_IFTYPES:
fffd0934
JB		 900 return -EINVAL;
901 }
902
903 return 0;
904}
905
664834de
JM		 906static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
907 struct nlattr *tb)
908{
909 struct ieee80211_channel *chan;
910
911 if (tb == NULL)
912 return NULL;
913 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
914 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
915 return NULL;
916 return chan;
917}
918
7527a782
JB		 919static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
920{
921 struct nlattr *nl_modes = nla_nest_start(msg, attr);
922 int i;
923
924 if (!nl_modes)
925 goto nla_put_failure;
926
927 i = 0;
928 while (ifmodes) {
9360ffd1
DM		 929 if ((ifmodes & 1) && nla_put_flag(msg, i))
930 goto nla_put_failure;
7527a782
JB		 931 ifmodes >>= 1;
932 i++;
933 }
934
935 nla_nest_end(msg, nl_modes);
936 return 0;
937
938nla_put_failure:
939 return -ENOBUFS;
940}
941
942static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 943 struct sk_buff *msg,
944 bool large)
7527a782
JB		 945{
946 struct nlattr *nl_combis;
947 int i, j;
948
949 nl_combis = nla_nest_start(msg,
950 NL80211_ATTR_INTERFACE_COMBINATIONS);
951 if (!nl_combis)
952 goto nla_put_failure;
953
954 for (i = 0; i < wiphy->n_iface_combinations; i++) {
955 const struct ieee80211_iface_combination *c;
956 struct nlattr *nl_combi, *nl_limits;
957
958 c = &wiphy->iface_combinations[i];
959
960 nl_combi = nla_nest_start(msg, i + 1);
961 if (!nl_combi)
962 goto nla_put_failure;
963
964 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
965 if (!nl_limits)
966 goto nla_put_failure;
967
968 for (j = 0; j < c->n_limits; j++) {
969 struct nlattr *nl_limit;
970
971 nl_limit = nla_nest_start(msg, j + 1);
972 if (!nl_limit)
973 goto nla_put_failure;
9360ffd1
DM		 974 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
975 c->limits[j].max))
976 goto nla_put_failure;
7527a782
JB		 977 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
978 c->limits[j].types))
979 goto nla_put_failure;
980 nla_nest_end(msg, nl_limit);
981 }
982
983 nla_nest_end(msg, nl_limits);
984
9360ffd1
DM		 985 if (c->beacon_int_infra_match &&
986 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
987 goto nla_put_failure;
988 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
989 c->num_different_channels) ||
990 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
991 c->max_interfaces))
992 goto nla_put_failure;
cdc89b97 993 if (large &&
8c48b50a
FF		 994 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
995 c->radar_detect_widths) ||
996 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
997 c->radar_detect_regions)))
cdc89b97 998 goto nla_put_failure;
7527a782
JB		 999
1000 nla_nest_end(msg, nl_combi);
1001 }
1002
1003 nla_nest_end(msg, nl_combis);
1004
1005 return 0;
1006nla_put_failure:
1007 return -ENOBUFS;
1008}
1009
3713b4e3 1010#ifdef CONFIG_PM
b56cf720
JB		 1011static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1012 struct sk_buff *msg)
1013{
964dc9e2 1014 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1015 struct nlattr *nl_tcp;
1016
1017 if (!tcp)
1018 return 0;
1019
1020 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1021 if (!nl_tcp)
1022 return -ENOBUFS;
1023
1024 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1025 tcp->data_payload_max))
1026 return -ENOBUFS;
1027
1028 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1029 tcp->data_payload_max))
1030 return -ENOBUFS;
1031
1032 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1033 return -ENOBUFS;
1034
1035 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1036 sizeof(*tcp->tok), tcp->tok))
1037 return -ENOBUFS;
1038
1039 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1040 tcp->data_interval_max))
1041 return -ENOBUFS;
1042
1043 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1044 tcp->wake_payload_max))
1045 return -ENOBUFS;
1046
1047 nla_nest_end(msg, nl_tcp);
1048 return 0;
1049}
1050
3713b4e3 1051static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1052 struct cfg80211_registered_device *rdev,
b56cf720 1053 bool large)
55682965 1054{
3713b4e3 1055 struct nlattr *nl_wowlan;
55682965 1056
1b8ec87a 1057 if (!rdev->wiphy.wowlan)
3713b4e3 1058 return 0;
55682965 1059
3713b4e3
JB		 1060 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1061 if (!nl_wowlan)
1062 return -ENOBUFS;
9360ffd1 1063
1b8ec87a 1064 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1065 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1066 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1067 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1068 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1069 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1070 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1071 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1072 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1073 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1074 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1075 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1076 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1077 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1078 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1079 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1080 return -ENOBUFS;
9360ffd1 1081
1b8ec87a 1082 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1083 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1084 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1085 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1086 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1087 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1088 };
9360ffd1 1089
3713b4e3
JB		 1090 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1091 sizeof(pat), &pat))
1092 return -ENOBUFS;
1093 }
9360ffd1 1094
75453ccb
LC		 1095 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1096 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1097 rdev->wiphy.wowlan->max_nd_match_sets))
1098 return -ENOBUFS;
1099
1b8ec87a 1100 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1101 return -ENOBUFS;
1102
3713b4e3 1103 nla_nest_end(msg, nl_wowlan);
9360ffd1 1104
3713b4e3
JB		 1105 return 0;
1106}
1107#endif
9360ffd1 1108
be29b99a 1109static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1110 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1111{
1112 struct nl80211_coalesce_rule_support rule;
1113
1b8ec87a 1114 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1115 return 0;
1116
1b8ec87a
ZG		 1117 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1118 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1119 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1120 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1121 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1122 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1123
1124 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1125 return -ENOBUFS;
1126
1127 return 0;
1128}
1129
3713b4e3
JB		 1130static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1131 struct ieee80211_supported_band *sband)
1132{
1133 struct nlattr *nl_rates, *nl_rate;
1134 struct ieee80211_rate *rate;
1135 int i;
87bbbe22 1136
3713b4e3
JB		 1137 /* add HT info */
1138 if (sband->ht_cap.ht_supported &&
1139 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1140 sizeof(sband->ht_cap.mcs),
1141 &sband->ht_cap.mcs) ||
1142 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1143 sband->ht_cap.cap) ||
1144 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1145 sband->ht_cap.ampdu_factor) ||
1146 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1147 sband->ht_cap.ampdu_density)))
1148 return -ENOBUFS;
afe0cbf8 1149
3713b4e3
JB		 1150 /* add VHT info */
1151 if (sband->vht_cap.vht_supported &&
1152 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1153 sizeof(sband->vht_cap.vht_mcs),
1154 &sband->vht_cap.vht_mcs) ||
1155 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1156 sband->vht_cap.cap)))
1157 return -ENOBUFS;
f59ac048 1158
3713b4e3
JB		 1159 /* add bitrates */
1160 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1161 if (!nl_rates)
1162 return -ENOBUFS;
ee688b00 1163
3713b4e3
JB		 1164 for (i = 0; i < sband->n_bitrates; i++) {
1165 nl_rate = nla_nest_start(msg, i);
1166 if (!nl_rate)
1167 return -ENOBUFS;
ee688b00 1168
3713b4e3
JB		 1169 rate = &sband->bitrates[i];
1170 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1171 rate->bitrate))
1172 return -ENOBUFS;
1173 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1174 nla_put_flag(msg,
1175 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1176 return -ENOBUFS;
ee688b00 1177
3713b4e3
JB		 1178 nla_nest_end(msg, nl_rate);
1179 }
d51626df 1180
3713b4e3 1181 nla_nest_end(msg, nl_rates);
bf0c111e 1182
3713b4e3
JB		 1183 return 0;
1184}
ee688b00 1185
3713b4e3
JB		 1186static int
1187nl80211_send_mgmt_stypes(struct sk_buff *msg,
1188 const struct ieee80211_txrx_stypes *mgmt_stypes)
1189{
1190 u16 stypes;
1191 struct nlattr *nl_ftypes, *nl_ifs;
1192 enum nl80211_iftype ift;
1193 int i;
ee688b00 1194
3713b4e3
JB		 1195 if (!mgmt_stypes)
1196 return 0;
5dab3b8a 1197
3713b4e3
JB		 1198 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1199 if (!nl_ifs)
1200 return -ENOBUFS;
e2f367f2 1201
3713b4e3
JB		 1202 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1203 nl_ftypes = nla_nest_start(msg, ift);
1204 if (!nl_ftypes)
1205 return -ENOBUFS;
1206 i = 0;
1207 stypes = mgmt_stypes[ift].tx;
1208 while (stypes) {
1209 if ((stypes & 1) &&
1210 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1211 (i << 4) | IEEE80211_FTYPE_MGMT))
1212 return -ENOBUFS;
1213 stypes >>= 1;
1214 i++;
ee688b00 1215 }
3713b4e3
JB		 1216 nla_nest_end(msg, nl_ftypes);
1217 }
ee688b00 1218
3713b4e3 1219 nla_nest_end(msg, nl_ifs);
ee688b00 1220
3713b4e3
JB		 1221 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1222 if (!nl_ifs)
1223 return -ENOBUFS;
ee688b00 1224
3713b4e3
JB		 1225 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1226 nl_ftypes = nla_nest_start(msg, ift);
1227 if (!nl_ftypes)
1228 return -ENOBUFS;
1229 i = 0;
1230 stypes = mgmt_stypes[ift].rx;
1231 while (stypes) {
1232 if ((stypes & 1) &&
1233 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1234 (i << 4) | IEEE80211_FTYPE_MGMT))
1235 return -ENOBUFS;
1236 stypes >>= 1;
1237 i++;
1238 }
1239 nla_nest_end(msg, nl_ftypes);
1240 }
1241 nla_nest_end(msg, nl_ifs);
ee688b00 1242
3713b4e3
JB		 1243 return 0;
1244}
ee688b00 1245
86e8cf98
JB		 1246struct nl80211_dump_wiphy_state {
1247 s64 filter_wiphy;
1248 long start;
1249 long split_start, band_start, chan_start;
1250 bool split;
1251};
1252
1b8ec87a 1253static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1254 enum nl80211_commands cmd,
3713b4e3 1255 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1256 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1257{
1258 void *hdr;
1259 struct nlattr *nl_bands, *nl_band;
1260 struct nlattr *nl_freqs, *nl_freq;
1261 struct nlattr *nl_cmds;
1262 enum ieee80211_band band;
1263 struct ieee80211_channel *chan;
1264 int i;
1265 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1266 rdev->wiphy.mgmt_stypes;
fe1abafd 1267 u32 features;
ee688b00 1268
3bb20556 1269 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1270 if (!hdr)
1271 return -ENOBUFS;
ee688b00 1272
86e8cf98
JB		 1273 if (WARN_ON(!state))
1274 return -EINVAL;
ee688b00 1275
1b8ec87a 1276 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1277 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1278 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1279 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1280 cfg80211_rdev_list_generation))
8fdc621d
JB		 1281 goto nla_put_failure;
1282
3bb20556
JB		 1283 if (cmd != NL80211_CMD_NEW_WIPHY)
1284 goto finish;
1285
86e8cf98 1286 switch (state->split_start) {
3713b4e3
JB		 1287 case 0:
1288 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1289 rdev->wiphy.retry_short) ||
3713b4e3 1290 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1291 rdev->wiphy.retry_long) ||
3713b4e3 1292 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1293 rdev->wiphy.frag_threshold) ||
3713b4e3 1294 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1295 rdev->wiphy.rts_threshold) ||
3713b4e3 1296 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1297 rdev->wiphy.coverage_class) ||
3713b4e3 1298 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1299 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1300 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1301 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1302 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1303 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1304 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1305 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1306 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1307 rdev->wiphy.max_match_sets))
9360ffd1 1308 goto nla_put_failure;
3713b4e3 1309
1b8ec87a 1310 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1311 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1312 goto nla_put_failure;
1b8ec87a 1313 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1314 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1315 goto nla_put_failure;
1b8ec87a 1316 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1317 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1318 goto nla_put_failure;
1b8ec87a 1319 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1320 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1321 goto nla_put_failure;
1b8ec87a 1322 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1323 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1324 goto nla_put_failure;
1b8ec87a 1325 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1326 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1327 goto nla_put_failure;
86e8cf98
JB		 1328 state->split_start++;
1329 if (state->split)
3713b4e3
JB		 1330 break;
1331 case 1:
1332 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1333 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1334 rdev->wiphy.cipher_suites))
3713b4e3 1335 goto nla_put_failure;
4745fc09 1336
3713b4e3 1337 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1338 rdev->wiphy.max_num_pmkids))
3713b4e3 1339 goto nla_put_failure;
b23aa676 1340
1b8ec87a 1341 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1342 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1343 goto nla_put_failure;
b23aa676 1344
3713b4e3 1345 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1346 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1347 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1348 rdev->wiphy.available_antennas_rx))
9360ffd1 1349 goto nla_put_failure;
b23aa676 1350
1b8ec87a 1351 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1352 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1353 rdev->wiphy.probe_resp_offload))
3713b4e3 1354 goto nla_put_failure;
8fdc621d 1355
1b8ec87a
ZG		 1356 if ((rdev->wiphy.available_antennas_tx ||
1357 rdev->wiphy.available_antennas_rx) &&
1358 rdev->ops->get_antenna) {
3713b4e3
JB		 1359 u32 tx_ant = 0, rx_ant = 0;
1360 int res;
1b8ec87a 1361 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1362 if (!res) {
1363 if (nla_put_u32(msg,
1364 NL80211_ATTR_WIPHY_ANTENNA_TX,
1365 tx_ant) ||
1366 nla_put_u32(msg,
1367 NL80211_ATTR_WIPHY_ANTENNA_RX,
1368 rx_ant))
1369 goto nla_put_failure;
1370 }
1371 }
a293911d 1372
86e8cf98
JB		 1373 state->split_start++;
1374 if (state->split)
3713b4e3
JB		 1375 break;
1376 case 2:
1377 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1378 rdev->wiphy.interface_modes))
3713b4e3 1379 goto nla_put_failure;
86e8cf98
JB		 1380 state->split_start++;
1381 if (state->split)
3713b4e3
JB		 1382 break;
1383 case 3:
1384 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1385 if (!nl_bands)
1386 goto nla_put_failure;
f7ca38df 1387
86e8cf98
JB		 1388 for (band = state->band_start;
1389 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1390 struct ieee80211_supported_band *sband;
2e161f78 1391
1b8ec87a 1392 sband = rdev->wiphy.bands[band];
2e161f78 1393
3713b4e3
JB		 1394 if (!sband)
1395 continue;
1396
1397 nl_band = nla_nest_start(msg, band);
1398 if (!nl_band)
2e161f78 1399 goto nla_put_failure;
3713b4e3 1400
86e8cf98 1401 switch (state->chan_start) {
3713b4e3
JB		 1402 case 0:
1403 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1404 goto nla_put_failure;
86e8cf98
JB		 1405 state->chan_start++;
1406 if (state->split)
3713b4e3
JB		 1407 break;
1408 default:
1409 /* add frequencies */
1410 nl_freqs = nla_nest_start(
1411 msg, NL80211_BAND_ATTR_FREQS);
1412 if (!nl_freqs)
1413 goto nla_put_failure;
1414
86e8cf98 1415 for (i = state->chan_start - 1;
3713b4e3
JB		 1416 i < sband->n_channels;
1417 i++) {
1418 nl_freq = nla_nest_start(msg, i);
1419 if (!nl_freq)
1420 goto nla_put_failure;
1421
1422 chan = &sband->channels[i];
1423
86e8cf98
JB		 1424 if (nl80211_msg_put_channel(
1425 msg, chan,
1426 state->split))
3713b4e3
JB		 1427 goto nla_put_failure;
1428
1429 nla_nest_end(msg, nl_freq);
86e8cf98 1430 if (state->split)
3713b4e3
JB		 1431 break;
1432 }
1433 if (i < sband->n_channels)
86e8cf98 1434 state->chan_start = i + 2;
3713b4e3 1435 else
86e8cf98 1436 state->chan_start = 0;
3713b4e3
JB		 1437 nla_nest_end(msg, nl_freqs);
1438 }
1439
1440 nla_nest_end(msg, nl_band);
1441
86e8cf98 1442 if (state->split) {
3713b4e3 1443 /* start again here */
86e8cf98 1444 if (state->chan_start)
3713b4e3
JB		 1445 band--;
1446 break;
2e161f78 1447 }
2e161f78 1448 }
3713b4e3 1449 nla_nest_end(msg, nl_bands);
2e161f78 1450
3713b4e3 1451 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1452 state->band_start = band + 1;
3713b4e3 1453 else
86e8cf98 1454 state->band_start = 0;
74b70a4e 1455
3713b4e3 1456 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1457 if (state->band_start == 0 && state->chan_start == 0)
1458 state->split_start++;
1459 if (state->split)
3713b4e3
JB		 1460 break;
1461 case 4:
1462 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1463 if (!nl_cmds)
2e161f78
JB		 1464 goto nla_put_failure;
1465
3713b4e3
JB		 1466 i = 0;
1467#define CMD(op, n) \
1468 do { \
1b8ec87a 1469 if (rdev->ops->op) { \
3713b4e3
JB		 1470 i++; \
1471 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1472 goto nla_put_failure; \
1473 } \
1474 } while (0)
1475
1476 CMD(add_virtual_intf, NEW_INTERFACE);
1477 CMD(change_virtual_intf, SET_INTERFACE);
1478 CMD(add_key, NEW_KEY);
1479 CMD(start_ap, START_AP);
1480 CMD(add_station, NEW_STATION);
1481 CMD(add_mpath, NEW_MPATH);
1482 CMD(update_mesh_config, SET_MESH_CONFIG);
1483 CMD(change_bss, SET_BSS);
1484 CMD(auth, AUTHENTICATE);
1485 CMD(assoc, ASSOCIATE);
1486 CMD(deauth, DEAUTHENTICATE);
1487 CMD(disassoc, DISASSOCIATE);
1488 CMD(join_ibss, JOIN_IBSS);
1489 CMD(join_mesh, JOIN_MESH);
1490 CMD(set_pmksa, SET_PMKSA);
1491 CMD(del_pmksa, DEL_PMKSA);
1492 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1493 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1494 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1495 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1496 CMD(mgmt_tx, FRAME);
1497 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1498 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1499 i++;
1500 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1501 goto nla_put_failure;
2e161f78 1502 }
1b8ec87a
ZG		 1503 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1504 rdev->ops->join_mesh) {
3713b4e3
JB		 1505 i++;
1506 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1507 goto nla_put_failure;
1508 }
1509 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1510 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1511 CMD(tdls_mgmt, TDLS_MGMT);
1512 CMD(tdls_oper, TDLS_OPER);
1513 }
1b8ec87a 1514 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1515 CMD(sched_scan_start, START_SCHED_SCAN);
1516 CMD(probe_client, PROBE_CLIENT);
1517 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1518 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1519 i++;
1520 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1521 goto nla_put_failure;
1522 }
1523 CMD(start_p2p_device, START_P2P_DEVICE);
1524 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1525#ifdef CONFIG_NL80211_TESTMODE
1526 CMD(testmode_cmd, TESTMODE);
1527#endif
86e8cf98 1528 if (state->split) {
5de17984
AS		 1529 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1530 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1531 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1532 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1533 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1534 if (rdev->wiphy.features &
1535 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1536 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1537 }
02df00eb 1538 /* add into the if now */
3713b4e3 1539#undef CMD
ff1b6e69 1540
1b8ec87a 1541 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1542 i++;
1543 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1544 goto nla_put_failure;
ff1b6e69
JB		 1545 }
1546
1b8ec87a 1547 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1548 i++;
1549 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1550 goto nla_put_failure;
1551 }
1552
1553 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1554 state->split_start++;
1555 if (state->split)
3713b4e3
JB		 1556 break;
1557 case 5:
1b8ec87a
ZG		 1558 if (rdev->ops->remain_on_channel &&
1559 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1560 nla_put_u32(msg,
1561 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1562 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1563 goto nla_put_failure;
1564
1b8ec87a 1565 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1566 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1567 goto nla_put_failure;
1568
1569 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1570 goto nla_put_failure;
86e8cf98
JB		 1571 state->split_start++;
1572 if (state->split)
3713b4e3
JB		 1573 break;
1574 case 6:
1575#ifdef CONFIG_PM
1b8ec87a 1576 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1577 goto nla_put_failure;
86e8cf98
JB		 1578 state->split_start++;
1579 if (state->split)
3713b4e3
JB		 1580 break;
1581#else
86e8cf98 1582 state->split_start++;
dfb89c56 1583#endif
3713b4e3
JB		 1584 case 7:
1585 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1586 rdev->wiphy.software_iftypes))
3713b4e3 1587 goto nla_put_failure;
ff1b6e69 1588
1b8ec87a 1589 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1590 state->split))
3713b4e3 1591 goto nla_put_failure;
7527a782 1592
86e8cf98
JB		 1593 state->split_start++;
1594 if (state->split)
3713b4e3
JB		 1595 break;
1596 case 8:
1b8ec87a 1597 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1598 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1599 rdev->wiphy.ap_sme_capa))
3713b4e3 1600 goto nla_put_failure;
7527a782 1601
1b8ec87a 1602 features = rdev->wiphy.features;
fe1abafd
JB		 1603 /*
1604 * We can only add the per-channel limit information if the
1605 * dump is split, otherwise it makes it too big. Therefore
1606 * only advertise it in that case.
1607 */
86e8cf98 1608 if (state->split)
fe1abafd
JB		 1609 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1610 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1611 goto nla_put_failure;
562a7480 1612
1b8ec87a 1613 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1614 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1615 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1616 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1617 goto nla_put_failure;
1f074bd8 1618
1b8ec87a
ZG		 1619 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1620 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1621 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1622 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1623 goto nla_put_failure;
7e7c8926 1624
3713b4e3
JB		 1625 /*
1626 * Any information below this point is only available to
1627 * applications that can deal with it being split. This
1628 * helps ensure that newly added capabilities don't break
1629 * older tools by overrunning their buffers.
1630 *
1631 * We still increment split_start so that in the split
1632 * case we'll continue with more data in the next round,
1633 * but break unconditionally so unsplit data stops here.
1634 */
86e8cf98 1635 state->split_start++;
3713b4e3
JB		 1636 break;
1637 case 9:
1b8ec87a 1638 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1639 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1640 rdev->wiphy.extended_capabilities_len,
1641 rdev->wiphy.extended_capabilities) ||
fe1abafd 1642 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1643 rdev->wiphy.extended_capabilities_len,
1644 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1645 goto nla_put_failure;
a50df0c4 1646
1b8ec87a 1647 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1648 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1649 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1650 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1651 goto nla_put_failure;
1652
be29b99a
AK		 1653 state->split_start++;
1654 break;
1655 case 10:
1b8ec87a 1656 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1657 goto nla_put_failure;
1658
1b8ec87a 1659 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1660 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1661 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1662 goto nla_put_failure;
b43504cf 1663
1b8ec87a 1664 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1665 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1666 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1667 goto nla_put_failure;
1668
ad7e718c
JB		 1669 state->split_start++;
1670 break;
1671 case 11:
1b8ec87a 1672 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1673 const struct nl80211_vendor_cmd_info *info;
1674 struct nlattr *nested;
1675
1676 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1677 if (!nested)
1678 goto nla_put_failure;
1679
1b8ec87a
ZG		 1680 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1681 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1682 if (nla_put(msg, i + 1, sizeof(*info), info))
1683 goto nla_put_failure;
1684 }
1685 nla_nest_end(msg, nested);
1686 }
1687
1b8ec87a 1688 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1689 const struct nl80211_vendor_cmd_info *info;
1690 struct nlattr *nested;
ad7e718c 1691
567ffc35
JB		 1692 nested = nla_nest_start(msg,
1693 NL80211_ATTR_VENDOR_EVENTS);
1694 if (!nested)
ad7e718c 1695 goto nla_put_failure;
567ffc35 1696
1b8ec87a
ZG		 1697 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1698 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1699 if (nla_put(msg, i + 1, sizeof(*info), info))
1700 goto nla_put_failure;
1701 }
1702 nla_nest_end(msg, nested);
1703 }
9a774c78
AO		 1704 state->split_start++;
1705 break;
1706 case 12:
1707 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1708 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1709 rdev->wiphy.max_num_csa_counters))
1710 goto nla_put_failure;
01e0daa4 1711
1bdd716c
AN		 1712 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1713 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1714 goto nla_put_failure;
1715
d75bb06b
GKS		 1716 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1717 sizeof(rdev->wiphy.ext_features),
1718 rdev->wiphy.ext_features))
1719 goto nla_put_failure;
1720
3713b4e3 1721 /* done */
86e8cf98 1722 state->split_start = 0;
3713b4e3
JB		 1723 break;
1724 }
3bb20556 1725 finish:
053c095a
JB		 1726 genlmsg_end(msg, hdr);
1727 return 0;
55682965
JB		 1728
1729 nla_put_failure:
bc3ed28c
TG		 1730 genlmsg_cancel(msg, hdr);
1731 return -EMSGSIZE;
55682965
JB		 1732}
1733
86e8cf98
JB		 1734static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1735 struct netlink_callback *cb,
1736 struct nl80211_dump_wiphy_state *state)
1737{
1738 struct nlattr **tb = nl80211_fam.attrbuf;
1739 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1740 tb, nl80211_fam.maxattr, nl80211_policy);
1741 /* ignore parse errors for backward compatibility */
1742 if (ret)
1743 return 0;
1744
1745 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1746 if (tb[NL80211_ATTR_WIPHY])
1747 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1748 if (tb[NL80211_ATTR_WDEV])
1749 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1750 if (tb[NL80211_ATTR_IFINDEX]) {
1751 struct net_device *netdev;
1752 struct cfg80211_registered_device *rdev;
1753 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1754
7f2b8562 1755 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1756 if (!netdev)
1757 return -ENODEV;
1758 if (netdev->ieee80211_ptr) {
f26cbf40 1759 rdev = wiphy_to_rdev(
86e8cf98
JB		 1760 netdev->ieee80211_ptr->wiphy);
1761 state->filter_wiphy = rdev->wiphy_idx;
1762 }
86e8cf98
JB		 1763 }
1764
1765 return 0;
1766}
1767
55682965
JB		 1768static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1769{
645e77de 1770 int idx = 0, ret;
86e8cf98 1771 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1772 struct cfg80211_registered_device *rdev;
3a5a423b 1773
5fe231e8 1774 rtnl_lock();
86e8cf98
JB		 1775 if (!state) {
1776 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1777 if (!state) {
1778 rtnl_unlock();
86e8cf98 1779 return -ENOMEM;
3713b4e3 1780 }
86e8cf98
JB		 1781 state->filter_wiphy = -1;
1782 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1783 if (ret) {
1784 kfree(state);
1785 rtnl_unlock();
1786 return ret;
3713b4e3 1787 }
86e8cf98 1788 cb->args[0] = (long)state;
3713b4e3
JB		 1789 }
1790
1b8ec87a
ZG		 1791 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1792 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1793 continue;
86e8cf98 1794 if (++idx <= state->start)
55682965 1795 continue;
86e8cf98 1796 if (state->filter_wiphy != -1 &&
1b8ec87a 1797 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1798 continue;
1799 /* attempt to fit multiple wiphy data chunks into the skb */
1800 do {
3bb20556
JB		 1801 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1802 skb,
3713b4e3
JB		 1803 NETLINK_CB(cb->skb).portid,
1804 cb->nlh->nlmsg_seq,
86e8cf98 1805 NLM_F_MULTI, state);
3713b4e3
JB		 1806 if (ret < 0) {
1807 /*
1808 * If sending the wiphy data didn't fit (ENOBUFS
1809 * or EMSGSIZE returned), this SKB is still
1810 * empty (so it's not too big because another
1811 * wiphy dataset is already in the skb) and
1812 * we've not tried to adjust the dump allocation
1813 * yet ... then adjust the alloc size to be
1814 * bigger, and return 1 but with the empty skb.
1815 * This results in an empty message being RX'ed
1816 * in userspace, but that is ignored.
1817 *
1818 * We can then retry with the larger buffer.
1819 */
1820 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1821 !skb->len && !state->split &&
3713b4e3
JB		 1822 cb->min_dump_alloc < 4096) {
1823 cb->min_dump_alloc = 4096;
f12cb289 1824 state->split_start = 0;
d98cae64 1825 rtnl_unlock();
3713b4e3
JB		 1826 return 1;
1827 }
1828 idx--;
1829 break;
645e77de 1830 }
86e8cf98 1831 } while (state->split_start > 0);
3713b4e3 1832 break;
55682965 1833 }
5fe231e8 1834 rtnl_unlock();
55682965 1835
86e8cf98 1836 state->start = idx;
55682965
JB		 1837
1838 return skb->len;
1839}
1840
86e8cf98
JB		 1841static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1842{
1843 kfree((void *)cb->args[0]);
1844 return 0;
1845}
1846
55682965
JB		 1847static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1848{
1849 struct sk_buff *msg;
1b8ec87a 1850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1851 struct nl80211_dump_wiphy_state state = {};
55682965 1852
645e77de 1853 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1854 if (!msg)
4c476991 1855 return -ENOMEM;
55682965 1856
3bb20556
JB		 1857 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1858 info->snd_portid, info->snd_seq, 0,
86e8cf98 1859 &state) < 0) {
4c476991
JB		 1860 nlmsg_free(msg);
1861 return -ENOBUFS;
1862 }
55682965 1863
134e6375 1864 return genlmsg_reply(msg, info);
55682965
JB		 1865}
1866
31888487
JM		 1867static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1868 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1869 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1870 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1871 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1872 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1873};
1874
1875static int parse_txq_params(struct nlattr *tb[],
1876 struct ieee80211_txq_params *txq_params)
1877{
a3304b0a 1878 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1879 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1880 !tb[NL80211_TXQ_ATTR_AIFS])
1881 return -EINVAL;
1882
a3304b0a 1883 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1884 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1885 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1886 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1887 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1888
a3304b0a
JB		 1889 if (txq_params->ac >= NL80211_NUM_ACS)
1890 return -EINVAL;
1891
31888487
JM		 1892 return 0;
1893}
1894
f444de05
JB		 1895static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1896{
1897 /*
cc1d2806
JB		 1898 * You can only set the channel explicitly for WDS interfaces,
1899 * all others have their channel managed via their respective
1900 * "establish a connection" command (connect, join, ...)
1901 *
1902 * For AP/GO and mesh mode, the channel can be set with the
1903 * channel userspace API, but is only stored and passed to the
1904 * low-level driver when the AP starts or the mesh is joined.
1905 * This is for backward compatibility, userspace can also give
1906 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1907 *
1908 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1909 * whatever else is going on, so they have their own special
1910 * operation to set the monitor channel if possible.
f444de05
JB		 1911 */
1912 return !wdev ||
1913 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1914 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1915 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1916 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1917}
1918
683b6d3b
JB		 1919static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1920 struct genl_info *info,
1921 struct cfg80211_chan_def *chandef)
1922{
dbeca2ea 1923 u32 control_freq;
683b6d3b
JB		 1924
1925 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1926 return -EINVAL;
1927
1928 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1929
1930 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1931 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1932 chandef->center_freq1 = control_freq;
1933 chandef->center_freq2 = 0;
683b6d3b
JB		 1934
1935 /* Primary channel not allowed */
1936 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1937 return -EINVAL;
1938
3d9d1d66
JB		 1939 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1940 enum nl80211_channel_type chantype;
1941
1942 chantype = nla_get_u32(
1943 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1944
1945 switch (chantype) {
1946 case NL80211_CHAN_NO_HT:
1947 case NL80211_CHAN_HT20:
1948 case NL80211_CHAN_HT40PLUS:
1949 case NL80211_CHAN_HT40MINUS:
1950 cfg80211_chandef_create(chandef, chandef->chan,
1951 chantype);
1952 break;
1953 default:
1954 return -EINVAL;
1955 }
1956 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1957 chandef->width =
1958 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1959 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1960 chandef->center_freq1 =
1961 nla_get_u32(
1962 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1963 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1964 chandef->center_freq2 =
1965 nla_get_u32(
1966 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1967 }
1968
9f5e8f6e 1969 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1970 return -EINVAL;
1971
9f5e8f6e
JB		 1972 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1973 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1974 return -EINVAL;
1975
2f301ab2
SW		 1976 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1977 chandef->width == NL80211_CHAN_WIDTH_10) &&
1978 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1979 return -EINVAL;
1980
683b6d3b
JB		 1981 return 0;
1982}
1983
f444de05 1984static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1985 struct net_device *dev,
f444de05
JB		 1986 struct genl_info *info)
1987{
683b6d3b 1988 struct cfg80211_chan_def chandef;
f444de05 1989 int result;
e8c9bd5b 1990 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1991 struct wireless_dev *wdev = NULL;
e8c9bd5b 1992
e16821bc
JM		 1993 if (dev)
1994 wdev = dev->ieee80211_ptr;
f444de05
JB		 1995 if (!nl80211_can_set_dev_channel(wdev))
1996 return -EOPNOTSUPP;
e16821bc
JM		 1997 if (wdev)
1998 iftype = wdev->iftype;
f444de05 1999
683b6d3b
JB		 2000 result = nl80211_parse_chandef(rdev, info, &chandef);
2001 if (result)
2002 return result;
f444de05 2003
e8c9bd5b 2004 switch (iftype) {
aa430da4
JB		 2005 case NL80211_IFTYPE_AP:
2006 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2007 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2008 iftype)) {
aa430da4
JB		 2009 result = -EINVAL;
2010 break;
2011 }
e16821bc
JM		 2012 if (wdev->beacon_interval) {
2013 if (!dev || !rdev->ops->set_ap_chanwidth ||
2014 !(rdev->wiphy.features &
2015 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2016 result = -EBUSY;
2017 break;
2018 }
2019
2020 /* Only allow dynamic channel width changes */
2021 if (chandef.chan != wdev->preset_chandef.chan) {
2022 result = -EBUSY;
2023 break;
2024 }
2025 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2026 if (result)
2027 break;
2028 }
683b6d3b 2029 wdev->preset_chandef = chandef;
aa430da4
JB		 2030 result = 0;
2031 break;
cc1d2806 2032 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2033 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2034 break;
e8c9bd5b 2035 case NL80211_IFTYPE_MONITOR:
683b6d3b 2036 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2037 break;
aa430da4 2038 default:
e8c9bd5b 2039 result = -EINVAL;
f444de05 2040 }
f444de05
JB		 2041
2042 return result;
2043}
2044
2045static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2046{
4c476991
JB		 2047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2048 struct net_device *netdev = info->user_ptr[1];
f444de05 2049
e16821bc 2050 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2051}
2052
e8347eba
BJ		 2053static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2054{
43b19952
JB		 2055 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2056 struct net_device *dev = info->user_ptr[1];
2057 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2058 const u8 *bssid;
e8347eba
BJ		 2059
2060 if (!info->attrs[NL80211_ATTR_MAC])
2061 return -EINVAL;
2062
43b19952
JB		 2063 if (netif_running(dev))
2064 return -EBUSY;
e8347eba 2065
43b19952
JB		 2066 if (!rdev->ops->set_wds_peer)
2067 return -EOPNOTSUPP;
e8347eba 2068
43b19952
JB		 2069 if (wdev->iftype != NL80211_IFTYPE_WDS)
2070 return -EOPNOTSUPP;
e8347eba
BJ		 2071
2072 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2073 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2074}
2075
2076
55682965
JB		 2077static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2078{
2079 struct cfg80211_registered_device *rdev;
f444de05
JB		 2080 struct net_device *netdev = NULL;
2081 struct wireless_dev *wdev;
a1e567c8 2082 int result = 0, rem_txq_params = 0;
31888487 2083 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2084 u32 changed;
2085 u8 retry_short = 0, retry_long = 0;
2086 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2087 u8 coverage_class = 0;
55682965 2088
5fe231e8
JB		 2089 ASSERT_RTNL();
2090
f444de05
JB		 2091 /*
2092 * Try to find the wiphy and netdev. Normally this
2093 * function shouldn't need the netdev, but this is
2094 * done for backward compatibility -- previously
2095 * setting the channel was done per wiphy, but now
2096 * it is per netdev. Previous userland like hostapd
2097 * also passed a netdev to set_wiphy, so that it is
2098 * possible to let that go to the right netdev!
2099 */
4bbf4d56 2100
f444de05
JB		 2101 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2102 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2103
7f2b8562 2104 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2105 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2106 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2107 else
f444de05 2108 netdev = NULL;
4bbf4d56
JB		 2109 }
2110
f444de05 2111 if (!netdev) {
878d9ec7
JB		 2112 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2113 info->attrs);
5fe231e8 2114 if (IS_ERR(rdev))
4c476991 2115 return PTR_ERR(rdev);
f444de05
JB		 2116 wdev = NULL;
2117 netdev = NULL;
2118 result = 0;
71fe96bf 2119 } else
f444de05 2120 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2121
2122 /*
2123 * end workaround code, by now the rdev is available
2124 * and locked, and wdev may or may not be NULL.
2125 */
4bbf4d56
JB		 2126
2127 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2128 result = cfg80211_dev_rename(
2129 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2130
4bbf4d56 2131 if (result)
7f2b8562 2132 return result;
31888487
JM		 2133
2134 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2135 struct ieee80211_txq_params txq_params;
2136 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2137
7f2b8562
YX		 2138 if (!rdev->ops->set_txq_params)
2139 return -EOPNOTSUPP;
31888487 2140
7f2b8562
YX		 2141 if (!netdev)
2142 return -EINVAL;
f70f01c2 2143
133a3ff2 2144 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2145 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2146 return -EINVAL;
133a3ff2 2147
7f2b8562
YX		 2148 if (!netif_running(netdev))
2149 return -ENETDOWN;
2b5f8b0b 2150
31888487
JM		 2151 nla_for_each_nested(nl_txq_params,
2152 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2153 rem_txq_params) {
ae811e21
JB		 2154 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2155 nla_data(nl_txq_params),
2156 nla_len(nl_txq_params),
2157 txq_params_policy);
2158 if (result)
2159 return result;
31888487
JM		 2160 result = parse_txq_params(tb, &txq_params);
2161 if (result)
7f2b8562 2162 return result;
31888487 2163
e35e4d28
HG		 2164 result = rdev_set_txq_params(rdev, netdev,
2165 &txq_params);
31888487 2166 if (result)
7f2b8562 2167 return result;
31888487
JM		 2168 }
2169 }
55682965 2170
72bdcf34 2171 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2172 result = __nl80211_set_channel(
2173 rdev,
2174 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2175 info);
72bdcf34 2176 if (result)
7f2b8562 2177 return result;
72bdcf34
JM		 2178 }
2179
98d2ff8b 2180 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2181 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2182 enum nl80211_tx_power_setting type;
2183 int idx, mbm = 0;
2184
c8442118
JB		 2185 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2186 txp_wdev = NULL;
2187
7f2b8562
YX		 2188 if (!rdev->ops->set_tx_power)
2189 return -EOPNOTSUPP;
98d2ff8b
JO		 2190
2191 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2192 type = nla_get_u32(info->attrs[idx]);
2193
2194 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2195 (type != NL80211_TX_POWER_AUTOMATIC))
2196 return -EINVAL;
98d2ff8b
JO		 2197
2198 if (type != NL80211_TX_POWER_AUTOMATIC) {
2199 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2200 mbm = nla_get_u32(info->attrs[idx]);
2201 }
2202
c8442118 2203 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2204 if (result)
7f2b8562 2205 return result;
98d2ff8b
JO		 2206 }
2207
afe0cbf8
BR		 2208 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2209 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2210 u32 tx_ant, rx_ant;
7f531e03
BR		 2211 if ((!rdev->wiphy.available_antennas_tx &&
2212 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2213 !rdev->ops->set_antenna)
2214 return -EOPNOTSUPP;
afe0cbf8
BR		 2215
2216 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2217 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2218
a7ffac95 2219 /* reject antenna configurations which don't match the
7f531e03
BR		 2220 * available antenna masks, except for the "all" mask */
2221 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2222 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2223 return -EINVAL;
a7ffac95 2224
7f531e03
BR		 2225 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2226 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2227
e35e4d28 2228 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2229 if (result)
7f2b8562 2230 return result;
afe0cbf8
BR		 2231 }
2232
b9a5f8ca
JM		 2233 changed = 0;
2234
2235 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2236 retry_short = nla_get_u8(
2237 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2238 if (retry_short == 0)
2239 return -EINVAL;
2240
b9a5f8ca
JM		 2241 changed |= WIPHY_PARAM_RETRY_SHORT;
2242 }
2243
2244 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2245 retry_long = nla_get_u8(
2246 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2247 if (retry_long == 0)
2248 return -EINVAL;
2249
b9a5f8ca
JM		 2250 changed |= WIPHY_PARAM_RETRY_LONG;
2251 }
2252
2253 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2254 frag_threshold = nla_get_u32(
2255 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2256 if (frag_threshold < 256)
2257 return -EINVAL;
2258
b9a5f8ca
JM		 2259 if (frag_threshold != (u32) -1) {
2260 /*
2261 * Fragments (apart from the last one) are required to
2262 * have even length. Make the fragmentation code
2263 * simpler by stripping LSB should someone try to use
2264 * odd threshold value.
2265 */
2266 frag_threshold &= ~0x1;
2267 }
2268 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2269 }
2270
2271 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2272 rts_threshold = nla_get_u32(
2273 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2274 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2275 }
2276
81077e82 2277 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2278 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2279 return -EINVAL;
2280
81077e82
LT		 2281 coverage_class = nla_get_u8(
2282 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2283 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2284 }
2285
3057dbfd
LB		 2286 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2287 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2288 return -EOPNOTSUPP;
2289
2290 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2291 }
2292
b9a5f8ca
JM		 2293 if (changed) {
2294 u8 old_retry_short, old_retry_long;
2295 u32 old_frag_threshold, old_rts_threshold;
81077e82 2296 u8 old_coverage_class;
b9a5f8ca 2297
7f2b8562
YX		 2298 if (!rdev->ops->set_wiphy_params)
2299 return -EOPNOTSUPP;
b9a5f8ca
JM		 2300
2301 old_retry_short = rdev->wiphy.retry_short;
2302 old_retry_long = rdev->wiphy.retry_long;
2303 old_frag_threshold = rdev->wiphy.frag_threshold;
2304 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2305 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2306
2307 if (changed & WIPHY_PARAM_RETRY_SHORT)
2308 rdev->wiphy.retry_short = retry_short;
2309 if (changed & WIPHY_PARAM_RETRY_LONG)
2310 rdev->wiphy.retry_long = retry_long;
2311 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2312 rdev->wiphy.frag_threshold = frag_threshold;
2313 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2314 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2315 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2316 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2317
e35e4d28 2318 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2319 if (result) {
2320 rdev->wiphy.retry_short = old_retry_short;
2321 rdev->wiphy.retry_long = old_retry_long;
2322 rdev->wiphy.frag_threshold = old_frag_threshold;
2323 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2324 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2325 return result;
b9a5f8ca
JM		 2326 }
2327 }
7f2b8562 2328 return 0;
55682965
JB		 2329}
2330
71bbc994
JB		 2331static inline u64 wdev_id(struct wireless_dev *wdev)
2332{
2333 return (u64)wdev->identifier |
f26cbf40 2334 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2335}
55682965 2336
683b6d3b 2337static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2338 const struct cfg80211_chan_def *chandef)
683b6d3b 2339{
601555cd
JB		 2340 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2341 return -EINVAL;
3d9d1d66 2342
683b6d3b
JB		 2343 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2344 chandef->chan->center_freq))
2345 return -ENOBUFS;
3d9d1d66
JB		 2346 switch (chandef->width) {
2347 case NL80211_CHAN_WIDTH_20_NOHT:
2348 case NL80211_CHAN_WIDTH_20:
2349 case NL80211_CHAN_WIDTH_40:
2350 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2351 cfg80211_get_chandef_type(chandef)))
2352 return -ENOBUFS;
2353 break;
2354 default:
2355 break;
2356 }
2357 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2358 return -ENOBUFS;
2359 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2360 return -ENOBUFS;
2361 if (chandef->center_freq2 &&
2362 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2363 return -ENOBUFS;
2364 return 0;
2365}
2366
15e47304 2367static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2368 struct cfg80211_registered_device *rdev,
8f894be2 2369 struct wireless_dev *wdev, bool removal)
55682965 2370{
72fb2abc 2371 struct net_device *dev = wdev->netdev;
8f894be2 2372 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2373 void *hdr;
2374
8f894be2
TB		 2375 if (removal)
2376 cmd = NL80211_CMD_DEL_INTERFACE;
2377
2378 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2379 if (!hdr)
2380 return -1;
2381
72fb2abc
JB		 2382 if (dev &&
2383 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2384 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2385 goto nla_put_failure;
2386
2387 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2388 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2389 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2390 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2391 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2392 rdev->devlist_generation ^
2393 (cfg80211_rdev_list_generation << 2)))
2394 goto nla_put_failure;
f5ea9120 2395
5b7ccaf3 2396 if (rdev->ops->get_channel) {
683b6d3b
JB		 2397 int ret;
2398 struct cfg80211_chan_def chandef;
2399
2400 ret = rdev_get_channel(rdev, wdev, &chandef);
2401 if (ret == 0) {
2402 if (nl80211_send_chandef(msg, &chandef))
2403 goto nla_put_failure;
2404 }
d91df0e3
PF		 2405 }
2406
d55d0d59
RM		 2407 if (rdev->ops->get_tx_power) {
2408 int dbm, ret;
2409
2410 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2411 if (ret == 0 &&
2412 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2413 DBM_TO_MBM(dbm)))
2414 goto nla_put_failure;
2415 }
2416
b84e7a05
AQ		 2417 if (wdev->ssid_len) {
2418 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2419 goto nla_put_failure;
2420 }
2421
053c095a
JB		 2422 genlmsg_end(msg, hdr);
2423 return 0;
55682965
JB		 2424
2425 nla_put_failure:
bc3ed28c
TG		 2426 genlmsg_cancel(msg, hdr);
2427 return -EMSGSIZE;
55682965
JB		 2428}
2429
2430static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2431{
2432 int wp_idx = 0;
2433 int if_idx = 0;
2434 int wp_start = cb->args[0];
2435 int if_start = cb->args[1];
f5ea9120 2436 struct cfg80211_registered_device *rdev;
55682965
JB		 2437 struct wireless_dev *wdev;
2438
5fe231e8 2439 rtnl_lock();
f5ea9120
JB		 2440 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2441 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2442 continue;
bba95fef
JB		 2443 if (wp_idx < wp_start) {
2444 wp_idx++;
55682965 2445 continue;
bba95fef 2446 }
55682965
JB		 2447 if_idx = 0;
2448
89a54e48 2449 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2450 if (if_idx < if_start) {
2451 if_idx++;
55682965 2452 continue;
bba95fef 2453 }
15e47304 2454 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2455 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2456 rdev, wdev, false) < 0) {
bba95fef
JB		 2457 goto out;
2458 }
2459 if_idx++;
55682965 2460 }
bba95fef
JB		 2461
2462 wp_idx++;
55682965 2463 }
bba95fef 2464 out:
5fe231e8 2465 rtnl_unlock();
55682965
JB		 2466
2467 cb->args[0] = wp_idx;
2468 cb->args[1] = if_idx;
2469
2470 return skb->len;
2471}
2472
2473static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2474{
2475 struct sk_buff *msg;
1b8ec87a 2476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2477 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2478
fd2120ca 2479 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2480 if (!msg)
4c476991 2481 return -ENOMEM;
55682965 2482
15e47304 2483 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2484 rdev, wdev, false) < 0) {
4c476991
JB		 2485 nlmsg_free(msg);
2486 return -ENOBUFS;
2487 }
55682965 2488
134e6375 2489 return genlmsg_reply(msg, info);
55682965
JB		 2490}
2491
66f7ac50
MW		 2492static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2493 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2494 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2495 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2496 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2497 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2498 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2499};
2500
2501static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2502{
2503 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2504 int flag;
2505
2506 *mntrflags = 0;
2507
2508 if (!nla)
2509 return -EINVAL;
2510
2511 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2512 nla, mntr_flags_policy))
2513 return -EINVAL;
2514
2515 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2516 if (flags[flag])
2517 *mntrflags |= (1<<flag);
2518
2519 return 0;
2520}
2521
9bc383de 2522static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2523 struct net_device *netdev, u8 use_4addr,
2524 enum nl80211_iftype iftype)
9bc383de 2525{
ad4bb6f8 2526 if (!use_4addr) {
f350a0a8 2527 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2528 return -EBUSY;
9bc383de 2529 return 0;
ad4bb6f8 2530 }
9bc383de
JB		 2531
2532 switch (iftype) {
2533 case NL80211_IFTYPE_AP_VLAN:
2534 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2535 return 0;
2536 break;
2537 case NL80211_IFTYPE_STATION:
2538 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2539 return 0;
2540 break;
2541 default:
2542 break;
2543 }
2544
2545 return -EOPNOTSUPP;
2546}
2547
55682965
JB		 2548static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2549{
4c476991 2550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2551 struct vif_params params;
e36d56b6 2552 int err;
04a773ad 2553 enum nl80211_iftype otype, ntype;
4c476991 2554 struct net_device *dev = info->user_ptr[1];
92ffe055 2555 u32 _flags, *flags = NULL;
ac7f9cfa 2556 bool change = false;
55682965 2557
2ec600d6
LCC		 2558 memset(&params, 0, sizeof(params));
2559
04a773ad 2560 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2561
723b038d 2562 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2563 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2564 if (otype != ntype)
ac7f9cfa 2565 change = true;
4c476991
JB		 2566 if (ntype > NL80211_IFTYPE_MAX)
2567 return -EINVAL;
723b038d
JB		 2568 }
2569
92ffe055 2570 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2571 struct wireless_dev *wdev = dev->ieee80211_ptr;
2572
4c476991
JB		 2573 if (ntype != NL80211_IFTYPE_MESH_POINT)
2574 return -EINVAL;
29cbe68c
JB		 2575 if (netif_running(dev))
2576 return -EBUSY;
2577
2578 wdev_lock(wdev);
2579 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2580 IEEE80211_MAX_MESH_ID_LEN);
2581 wdev->mesh_id_up_len =
2582 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2583 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2584 wdev->mesh_id_up_len);
2585 wdev_unlock(wdev);
2ec600d6
LCC		 2586 }
2587
8b787643
FF		 2588 if (info->attrs[NL80211_ATTR_4ADDR]) {
2589 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2590 change = true;
ad4bb6f8 2591 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2592 if (err)
4c476991 2593 return err;
8b787643
FF		 2594 } else {
2595 params.use_4addr = -1;
2596 }
2597
92ffe055 2598 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2599 if (ntype != NL80211_IFTYPE_MONITOR)
2600 return -EINVAL;
92ffe055
JB		 2601 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2602 &_flags);
ac7f9cfa 2603 if (err)
4c476991 2604 return err;
ac7f9cfa
JB		 2605
2606 flags = &_flags;
2607 change = true;
92ffe055 2608 }
3b85875a 2609
18003297 2610 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2611 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2612 return -EOPNOTSUPP;
2613
ac7f9cfa 2614 if (change)
3d54d255 2615 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2616 else
2617 err = 0;
60719ffd 2618
9bc383de
JB		 2619 if (!err && params.use_4addr != -1)
2620 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2621
55682965
JB		 2622 return err;
2623}
2624
2625static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2626{
4c476991 2627 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2628 struct vif_params params;
84efbb84 2629 struct wireless_dev *wdev;
8f894be2 2630 struct sk_buff *msg, *event;
55682965
JB		 2631 int err;
2632 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2633 u32 flags;
55682965 2634
78f22b6a
JB		 2635 /* to avoid failing a new interface creation due to pending removal */
2636 cfg80211_destroy_ifaces(rdev);
2637
2ec600d6
LCC		 2638 memset(&params, 0, sizeof(params));
2639
55682965
JB		 2640 if (!info->attrs[NL80211_ATTR_IFNAME])
2641 return -EINVAL;
2642
2643 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2644 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2645 if (type > NL80211_IFTYPE_MAX)
2646 return -EINVAL;
2647 }
2648
79c97e97 2649 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2650 !(rdev->wiphy.interface_modes & (1 << type)))
2651 return -EOPNOTSUPP;
55682965 2652
e8f479b1
BG		 2653 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2654 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2655 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2656 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2657 ETH_ALEN);
2658 if (!is_valid_ether_addr(params.macaddr))
2659 return -EADDRNOTAVAIL;
2660 }
2661
9bc383de 2662 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2663 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2664 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2665 if (err)
4c476991 2666 return err;
9bc383de 2667 }
8b787643 2668
66f7ac50
MW		 2669 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2670 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2671 &flags);
e057d3c3 2672
18003297 2673 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2674 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2675 return -EOPNOTSUPP;
2676
a18c7192
JB		 2677 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2678 if (!msg)
2679 return -ENOMEM;
2680
e35e4d28
HG		 2681 wdev = rdev_add_virtual_intf(rdev,
2682 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2683 NET_NAME_USER, type, err ? NULL : &flags,
2684 &params);
d687cbb7
RM		 2685 if (WARN_ON(!wdev)) {
2686 nlmsg_free(msg);
2687 return -EPROTO;
2688 } else if (IS_ERR(wdev)) {
1c90f9d4 2689 nlmsg_free(msg);
84efbb84 2690 return PTR_ERR(wdev);
1c90f9d4 2691 }
2ec600d6 2692
18e5ca65 2693 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2694 wdev->owner_nlportid = info->snd_portid;
2695
98104fde
JB		 2696 switch (type) {
2697 case NL80211_IFTYPE_MESH_POINT:
2698 if (!info->attrs[NL80211_ATTR_MESH_ID])
2699 break;
29cbe68c
JB		 2700 wdev_lock(wdev);
2701 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2702 IEEE80211_MAX_MESH_ID_LEN);
2703 wdev->mesh_id_up_len =
2704 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2705 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2706 wdev->mesh_id_up_len);
2707 wdev_unlock(wdev);
98104fde
JB		 2708 break;
2709 case NL80211_IFTYPE_P2P_DEVICE:
2710 /*
2711 * P2P Device doesn't have a netdev, so doesn't go
2712 * through the netdev notifier and must be added here
2713 */
2714 mutex_init(&wdev->mtx);
2715 INIT_LIST_HEAD(&wdev->event_list);
2716 spin_lock_init(&wdev->event_lock);
2717 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2718 spin_lock_init(&wdev->mgmt_registrations_lock);
2719
98104fde
JB		 2720 wdev->identifier = ++rdev->wdev_id;
2721 list_add_rcu(&wdev->list, &rdev->wdev_list);
2722 rdev->devlist_generation++;
98104fde
JB		 2723 break;
2724 default:
2725 break;
29cbe68c
JB		 2726 }
2727
15e47304 2728 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2729 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2730 nlmsg_free(msg);
2731 return -ENOBUFS;
2732 }
2733
8f894be2
TB		 2734 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2735 if (event) {
2736 if (nl80211_send_iface(event, 0, 0, 0,
2737 rdev, wdev, false) < 0) {
2738 nlmsg_free(event);
2739 goto out;
2740 }
2741
2742 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2743 event, 0, NL80211_MCGRP_CONFIG,
2744 GFP_KERNEL);
2745 }
2746
2747out:
1c90f9d4 2748 return genlmsg_reply(msg, info);
55682965
JB		 2749}
2750
2751static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2752{
4c476991 2753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2754 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2755 struct sk_buff *msg;
2756 int status;
55682965 2757
4c476991
JB		 2758 if (!rdev->ops->del_virtual_intf)
2759 return -EOPNOTSUPP;
55682965 2760
8f894be2
TB		 2761 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2762 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2763 nlmsg_free(msg);
2764 msg = NULL;
2765 }
2766
84efbb84
JB		 2767 /*
2768 * If we remove a wireless device without a netdev then clear
2769 * user_ptr[1] so that nl80211_post_doit won't dereference it
2770 * to check if it needs to do dev_put(). Otherwise it crashes
2771 * since the wdev has been freed, unlike with a netdev where
2772 * we need the dev_put() for the netdev to really be freed.
2773 */
2774 if (!wdev->netdev)
2775 info->user_ptr[1] = NULL;
2776
8f894be2
TB		 2777 status = rdev_del_virtual_intf(rdev, wdev);
2778 if (status >= 0 && msg)
2779 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2780 msg, 0, NL80211_MCGRP_CONFIG,
2781 GFP_KERNEL);
2782 else
2783 nlmsg_free(msg);
2784
2785 return status;
55682965
JB		 2786}
2787
1d9d9213
SW		 2788static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2789{
2790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2791 struct net_device *dev = info->user_ptr[1];
2792 u16 noack_map;
2793
2794 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2795 return -EINVAL;
2796
2797 if (!rdev->ops->set_noack_map)
2798 return -EOPNOTSUPP;
2799
2800 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2801
e35e4d28 2802 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2803}
2804
41ade00f
JB		 2805struct get_key_cookie {
2806 struct sk_buff *msg;
2807 int error;
b9454e83 2808 int idx;
41ade00f
JB		 2809};
2810
2811static void get_key_callback(void *c, struct key_params *params)
2812{
b9454e83 2813 struct nlattr *key;
41ade00f
JB		 2814 struct get_key_cookie *cookie = c;
2815
9360ffd1
DM		 2816 if ((params->key &&
2817 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2818 params->key_len, params->key)) ||
2819 (params->seq &&
2820 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2821 params->seq_len, params->seq)) ||
2822 (params->cipher &&
2823 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2824 params->cipher)))
2825 goto nla_put_failure;
41ade00f 2826
b9454e83
JB		 2827 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2828 if (!key)
2829 goto nla_put_failure;
2830
9360ffd1
DM		 2831 if ((params->key &&
2832 nla_put(cookie->msg, NL80211_KEY_DATA,
2833 params->key_len, params->key)) ||
2834 (params->seq &&
2835 nla_put(cookie->msg, NL80211_KEY_SEQ,
2836 params->seq_len, params->seq)) ||
2837 (params->cipher &&
2838 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2839 params->cipher)))
2840 goto nla_put_failure;
b9454e83 2841
9360ffd1
DM		 2842 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2843 goto nla_put_failure;
b9454e83
JB		 2844
2845 nla_nest_end(cookie->msg, key);
2846
41ade00f
JB		 2847 return;
2848 nla_put_failure:
2849 cookie->error = 1;
2850}
2851
2852static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2853{
4c476991 2854 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2855 int err;
4c476991 2856 struct net_device *dev = info->user_ptr[1];
41ade00f 2857 u8 key_idx = 0;
e31b8213
JB		 2858 const u8 *mac_addr = NULL;
2859 bool pairwise;
41ade00f
JB		 2860 struct get_key_cookie cookie = {
2861 .error = 0,
2862 };
2863 void *hdr;
2864 struct sk_buff *msg;
2865
2866 if (info->attrs[NL80211_ATTR_KEY_IDX])
2867 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2868
3cfcf6ac 2869 if (key_idx > 5)
41ade00f
JB		 2870 return -EINVAL;
2871
2872 if (info->attrs[NL80211_ATTR_MAC])
2873 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2874
e31b8213
JB		 2875 pairwise = !!mac_addr;
2876 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2877 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2878 if (kt >= NUM_NL80211_KEYTYPES)
2879 return -EINVAL;
2880 if (kt != NL80211_KEYTYPE_GROUP &&
2881 kt != NL80211_KEYTYPE_PAIRWISE)
2882 return -EINVAL;
2883 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2884 }
2885
4c476991
JB		 2886 if (!rdev->ops->get_key)
2887 return -EOPNOTSUPP;
41ade00f 2888
0fa7b391
JB		 2889 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2890 return -ENOENT;
2891
fd2120ca 2892 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2893 if (!msg)
2894 return -ENOMEM;
41ade00f 2895
15e47304 2896 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2897 NL80211_CMD_NEW_KEY);
cb35fba3 2898 if (!hdr)
9fe271af 2899 goto nla_put_failure;
41ade00f
JB		 2900
2901 cookie.msg = msg;
b9454e83 2902 cookie.idx = key_idx;
41ade00f 2903
9360ffd1
DM		 2904 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2905 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2906 goto nla_put_failure;
2907 if (mac_addr &&
2908 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2909 goto nla_put_failure;
41ade00f 2910
e35e4d28
HG		 2911 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2912 get_key_callback);
41ade00f
JB		 2913
2914 if (err)
6c95e2a2 2915 goto free_msg;
41ade00f
JB		 2916
2917 if (cookie.error)
2918 goto nla_put_failure;
2919
2920 genlmsg_end(msg, hdr);
4c476991 2921 return genlmsg_reply(msg, info);
41ade00f
JB		 2922
2923 nla_put_failure:
2924 err = -ENOBUFS;
6c95e2a2 2925 free_msg:
41ade00f 2926 nlmsg_free(msg);
41ade00f
JB		 2927 return err;
2928}
2929
2930static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2931{
4c476991 2932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2933 struct key_parse key;
41ade00f 2934 int err;
4c476991 2935 struct net_device *dev = info->user_ptr[1];
41ade00f 2936
b9454e83
JB		 2937 err = nl80211_parse_key(info, &key);
2938 if (err)
2939 return err;
41ade00f 2940
b9454e83 2941 if (key.idx < 0)
41ade00f
JB		 2942 return -EINVAL;
2943
b9454e83
JB		 2944 /* only support setting default key */
2945 if (!key.def && !key.defmgmt)
41ade00f
JB		 2946 return -EINVAL;
2947
dbd2fd65 2948 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2949
dbd2fd65
JB		 2950 if (key.def) {
2951 if (!rdev->ops->set_default_key) {
2952 err = -EOPNOTSUPP;
2953 goto out;
2954 }
41ade00f 2955
dbd2fd65
JB		 2956 err = nl80211_key_allowed(dev->ieee80211_ptr);
2957 if (err)
2958 goto out;
2959
e35e4d28 2960 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2961 key.def_uni, key.def_multi);
2962
2963 if (err)
2964 goto out;
fffd0934 2965
3d23e349 2966#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2967 dev->ieee80211_ptr->wext.default_key = key.idx;
2968#endif
2969 } else {
2970 if (key.def_uni || !key.def_multi) {
2971 err = -EINVAL;
2972 goto out;
2973 }
2974
2975 if (!rdev->ops->set_default_mgmt_key) {
2976 err = -EOPNOTSUPP;
2977 goto out;
2978 }
2979
2980 err = nl80211_key_allowed(dev->ieee80211_ptr);
2981 if (err)
2982 goto out;
2983
e35e4d28 2984 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2985 if (err)
2986 goto out;
2987
2988#ifdef CONFIG_CFG80211_WEXT
2989 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2990#endif
dbd2fd65
JB		 2991 }
2992
2993 out:
fffd0934 2994 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2995
41ade00f
JB		 2996 return err;
2997}
2998
2999static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3000{
4c476991 3001 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3002 int err;
4c476991 3003 struct net_device *dev = info->user_ptr[1];
b9454e83 3004 struct key_parse key;
e31b8213 3005 const u8 *mac_addr = NULL;
41ade00f 3006
b9454e83
JB		 3007 err = nl80211_parse_key(info, &key);
3008 if (err)
3009 return err;
41ade00f 3010
b9454e83 3011 if (!key.p.key)
41ade00f
JB		 3012 return -EINVAL;
3013
41ade00f
JB		 3014 if (info->attrs[NL80211_ATTR_MAC])
3015 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3016
e31b8213
JB		 3017 if (key.type == -1) {
3018 if (mac_addr)
3019 key.type = NL80211_KEYTYPE_PAIRWISE;
3020 else
3021 key.type = NL80211_KEYTYPE_GROUP;
3022 }
3023
3024 /* for now */
3025 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3026 key.type != NL80211_KEYTYPE_GROUP)
3027 return -EINVAL;
3028
4c476991
JB		 3029 if (!rdev->ops->add_key)
3030 return -EOPNOTSUPP;
25e47c18 3031
e31b8213
JB		 3032 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3033 key.type == NL80211_KEYTYPE_PAIRWISE,
3034 mac_addr))
4c476991 3035 return -EINVAL;
41ade00f 3036
fffd0934
JB		 3037 wdev_lock(dev->ieee80211_ptr);
3038 err = nl80211_key_allowed(dev->ieee80211_ptr);
3039 if (!err)
e35e4d28
HG		 3040 err = rdev_add_key(rdev, dev, key.idx,
3041 key.type == NL80211_KEYTYPE_PAIRWISE,
3042 mac_addr, &key.p);
fffd0934 3043 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3044
41ade00f
JB		 3045 return err;
3046}
3047
3048static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3049{
4c476991 3050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3051 int err;
4c476991 3052 struct net_device *dev = info->user_ptr[1];
41ade00f 3053 u8 *mac_addr = NULL;
b9454e83 3054 struct key_parse key;
41ade00f 3055
b9454e83
JB		 3056 err = nl80211_parse_key(info, &key);
3057 if (err)
3058 return err;
41ade00f
JB		 3059
3060 if (info->attrs[NL80211_ATTR_MAC])
3061 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3062
e31b8213
JB		 3063 if (key.type == -1) {
3064 if (mac_addr)
3065 key.type = NL80211_KEYTYPE_PAIRWISE;
3066 else
3067 key.type = NL80211_KEYTYPE_GROUP;
3068 }
3069
3070 /* for now */
3071 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3072 key.type != NL80211_KEYTYPE_GROUP)
3073 return -EINVAL;
3074
4c476991
JB		 3075 if (!rdev->ops->del_key)
3076 return -EOPNOTSUPP;
41ade00f 3077
fffd0934
JB		 3078 wdev_lock(dev->ieee80211_ptr);
3079 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3080
0fa7b391 3081 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3082 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3083 err = -ENOENT;
3084
fffd0934 3085 if (!err)
e35e4d28
HG		 3086 err = rdev_del_key(rdev, dev, key.idx,
3087 key.type == NL80211_KEYTYPE_PAIRWISE,
3088 mac_addr);
41ade00f 3089
3d23e349 3090#ifdef CONFIG_CFG80211_WEXT
08645126 3091 if (!err) {
b9454e83 3092 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3093 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3094 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3095 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3096 }
3097#endif
fffd0934 3098 wdev_unlock(dev->ieee80211_ptr);
08645126 3099
41ade00f
JB		 3100 return err;
3101}
3102
77765eaf
VT		 3103/* This function returns an error or the number of nested attributes */
3104static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3105{
3106 struct nlattr *attr;
3107 int n_entries = 0, tmp;
3108
3109 nla_for_each_nested(attr, nl_attr, tmp) {
3110 if (nla_len(attr) != ETH_ALEN)
3111 return -EINVAL;
3112
3113 n_entries++;
3114 }
3115
3116 return n_entries;
3117}
3118
3119/*
3120 * This function parses ACL information and allocates memory for ACL data.
3121 * On successful return, the calling function is responsible to free the
3122 * ACL buffer returned by this function.
3123 */
3124static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3125 struct genl_info *info)
3126{
3127 enum nl80211_acl_policy acl_policy;
3128 struct nlattr *attr;
3129 struct cfg80211_acl_data *acl;
3130 int i = 0, n_entries, tmp;
3131
3132 if (!wiphy->max_acl_mac_addrs)
3133 return ERR_PTR(-EOPNOTSUPP);
3134
3135 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3136 return ERR_PTR(-EINVAL);
3137
3138 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3139 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3140 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3141 return ERR_PTR(-EINVAL);
3142
3143 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3144 return ERR_PTR(-EINVAL);
3145
3146 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3147 if (n_entries < 0)
3148 return ERR_PTR(n_entries);
3149
3150 if (n_entries > wiphy->max_acl_mac_addrs)
3151 return ERR_PTR(-ENOTSUPP);
3152
3153 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3154 GFP_KERNEL);
3155 if (!acl)
3156 return ERR_PTR(-ENOMEM);
3157
3158 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3159 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3160 i++;
3161 }
3162
3163 acl->n_acl_entries = n_entries;
3164 acl->acl_policy = acl_policy;
3165
3166 return acl;
3167}
3168
3169static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3170{
3171 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3172 struct net_device *dev = info->user_ptr[1];
3173 struct cfg80211_acl_data *acl;
3174 int err;
3175
3176 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3177 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3178 return -EOPNOTSUPP;
3179
3180 if (!dev->ieee80211_ptr->beacon_interval)
3181 return -EINVAL;
3182
3183 acl = parse_acl_data(&rdev->wiphy, info);
3184 if (IS_ERR(acl))
3185 return PTR_ERR(acl);
3186
3187 err = rdev_set_mac_acl(rdev, dev, acl);
3188
3189 kfree(acl);
3190
3191 return err;
3192}
3193
a1193be8 3194static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3195 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3196{
8860020e 3197 bool haveinfo = false;
ed1b6cc7 3198
a1193be8
SW		 3199 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3200 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3201 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3202 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3203 return -EINVAL;
3204
8860020e 3205 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3206
a1193be8
SW		 3207 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3208 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3209 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3210 if (!bcn->head_len)
3211 return -EINVAL;
3212 haveinfo = true;
ed1b6cc7
JB		 3213 }
3214
a1193be8
SW		 3215 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3216 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3217 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3218 haveinfo = true;
ed1b6cc7
JB		 3219 }
3220
4c476991
JB		 3221 if (!haveinfo)
3222 return -EINVAL;
3b85875a 3223
a1193be8
SW		 3224 if (attrs[NL80211_ATTR_IE]) {
3225 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3226 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3227 }
3228
a1193be8 3229 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3230 bcn->proberesp_ies =
a1193be8 3231 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3232 bcn->proberesp_ies_len =
a1193be8 3233 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3234 }
3235
a1193be8 3236 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3237 bcn->assocresp_ies =
a1193be8 3238 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3239 bcn->assocresp_ies_len =
a1193be8 3240 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3241 }
3242
a1193be8
SW		 3243 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3244 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3245 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3246 }
3247
8860020e
JB		 3248 return 0;
3249}
3250
46c1dd0c
FF		 3251static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3252 struct cfg80211_ap_settings *params)
3253{
3254 struct wireless_dev *wdev;
3255 bool ret = false;
3256
89a54e48 3257 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3258 if (wdev->iftype != NL80211_IFTYPE_AP &&
3259 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3260 continue;
3261
683b6d3b 3262 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3263 continue;
3264
683b6d3b 3265 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3266 ret = true;
3267 break;
3268 }
3269
46c1dd0c
FF		 3270 return ret;
3271}
3272
e39e5b5e
JM		 3273static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3274 enum nl80211_auth_type auth_type,
3275 enum nl80211_commands cmd)
3276{
3277 if (auth_type > NL80211_AUTHTYPE_MAX)
3278 return false;
3279
3280 switch (cmd) {
3281 case NL80211_CMD_AUTHENTICATE:
3282 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3283 auth_type == NL80211_AUTHTYPE_SAE)
3284 return false;
3285 return true;
3286 case NL80211_CMD_CONNECT:
3287 case NL80211_CMD_START_AP:
3288 /* SAE not supported yet */
3289 if (auth_type == NL80211_AUTHTYPE_SAE)
3290 return false;
3291 return true;
3292 default:
3293 return false;
3294 }
3295}
3296
8860020e
JB		 3297static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3298{
3299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3300 struct net_device *dev = info->user_ptr[1];
3301 struct wireless_dev *wdev = dev->ieee80211_ptr;
3302 struct cfg80211_ap_settings params;
3303 int err;
3304
3305 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3306 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3307 return -EOPNOTSUPP;
3308
3309 if (!rdev->ops->start_ap)
3310 return -EOPNOTSUPP;
3311
3312 if (wdev->beacon_interval)
3313 return -EALREADY;
3314
3315 memset(&params, 0, sizeof(params));
3316
3317 /* these are required for START_AP */
3318 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3319 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3320 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3321 return -EINVAL;
3322
a1193be8 3323 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3324 if (err)
3325 return err;
3326
3327 params.beacon_interval =
3328 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3329 params.dtim_period =
3330 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3331
3332 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3333 if (err)
3334 return err;
3335
3336 /*
3337 * In theory, some of these attributes should be required here
3338 * but since they were not used when the command was originally
3339 * added, keep them optional for old user space programs to let
3340 * them continue to work with drivers that do not need the
3341 * additional information -- drivers must check!
3342 */
3343 if (info->attrs[NL80211_ATTR_SSID]) {
3344 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3345 params.ssid_len =
3346 nla_len(info->attrs[NL80211_ATTR_SSID]);
3347 if (params.ssid_len == 0 ||
3348 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3349 return -EINVAL;
3350 }
3351
3352 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3353 params.hidden_ssid = nla_get_u32(
3354 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3355 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3356 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3357 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3358 return -EINVAL;
3359 }
3360
3361 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3362
3363 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3364 params.auth_type = nla_get_u32(
3365 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3366 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3367 NL80211_CMD_START_AP))
8860020e
JB		 3368 return -EINVAL;
3369 } else
3370 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3371
3372 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3373 NL80211_MAX_NR_CIPHER_SUITES);
3374 if (err)
3375 return err;
3376
1b658f11
VT		 3377 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3378 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3379 return -EOPNOTSUPP;
3380 params.inactivity_timeout = nla_get_u16(
3381 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3382 }
3383
53cabad7
JB		 3384 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3385 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3386 return -EINVAL;
3387 params.p2p_ctwindow =
3388 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3389 if (params.p2p_ctwindow > 127)
3390 return -EINVAL;
3391 if (params.p2p_ctwindow != 0 &&
3392 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3393 return -EINVAL;
3394 }
3395
3396 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3397 u8 tmp;
3398
3399 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3400 return -EINVAL;
3401 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3402 if (tmp > 1)
3403 return -EINVAL;
3404 params.p2p_opp_ps = tmp;
3405 if (params.p2p_opp_ps != 0 &&
3406 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3407 return -EINVAL;
3408 }
3409
aa430da4 3410 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3411 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3412 if (err)
3413 return err;
3414 } else if (wdev->preset_chandef.chan) {
3415 params.chandef = wdev->preset_chandef;
46c1dd0c 3416 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3417 return -EINVAL;
3418
923b352f
AN		 3419 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3420 wdev->iftype))
aa430da4
JB		 3421 return -EINVAL;
3422
77765eaf
VT		 3423 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3424 params.acl = parse_acl_data(&rdev->wiphy, info);
3425 if (IS_ERR(params.acl))
3426 return PTR_ERR(params.acl);
3427 }
3428
18998c38
EP		 3429 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3430 params.smps_mode =
3431 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3432 switch (params.smps_mode) {
3433 case NL80211_SMPS_OFF:
3434 break;
3435 case NL80211_SMPS_STATIC:
3436 if (!(rdev->wiphy.features &
3437 NL80211_FEATURE_STATIC_SMPS))
3438 return -EINVAL;
3439 break;
3440 case NL80211_SMPS_DYNAMIC:
3441 if (!(rdev->wiphy.features &
3442 NL80211_FEATURE_DYNAMIC_SMPS))
3443 return -EINVAL;
3444 break;
3445 default:
3446 return -EINVAL;
3447 }
3448 } else {
3449 params.smps_mode = NL80211_SMPS_OFF;
3450 }
3451
c56589ed 3452 wdev_lock(wdev);
e35e4d28 3453 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3454 if (!err) {
683b6d3b 3455 wdev->preset_chandef = params.chandef;
8860020e 3456 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3457 wdev->chandef = params.chandef;
06e191e2
AQ		 3458 wdev->ssid_len = params.ssid_len;
3459 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3460 }
c56589ed 3461 wdev_unlock(wdev);
77765eaf
VT		 3462
3463 kfree(params.acl);
3464
56d1893d 3465 return err;
ed1b6cc7
JB		 3466}
3467
8860020e
JB		 3468static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3469{
3470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3471 struct net_device *dev = info->user_ptr[1];
3472 struct wireless_dev *wdev = dev->ieee80211_ptr;
3473 struct cfg80211_beacon_data params;
3474 int err;
3475
3476 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3477 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3478 return -EOPNOTSUPP;
3479
3480 if (!rdev->ops->change_beacon)
3481 return -EOPNOTSUPP;
3482
3483 if (!wdev->beacon_interval)
3484 return -EINVAL;
3485
a1193be8 3486 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3487 if (err)
3488 return err;
3489
c56589ed
SW		 3490 wdev_lock(wdev);
3491 err = rdev_change_beacon(rdev, dev, &params);
3492 wdev_unlock(wdev);
3493
3494 return err;
8860020e
JB		 3495}
3496
3497static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3498{
4c476991
JB		 3499 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3500 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3501
7c8d5e03 3502 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3503}
3504
5727ef1b
JB		 3505static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3506 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3507 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3508 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3509 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3510 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3511 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3512};
3513
eccb8e8f 3514static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3515 enum nl80211_iftype iftype,
eccb8e8f 3516 struct station_parameters *params)
5727ef1b
JB		 3517{
3518 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3519 struct nlattr *nla;
5727ef1b
JB		 3520 int flag;
3521
eccb8e8f
JB		 3522 /*
3523 * Try parsing the new attribute first so userspace
3524 * can specify both for older kernels.
3525 */
3526 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3527 if (nla) {
3528 struct nl80211_sta_flag_update *sta_flags;
3529
3530 sta_flags = nla_data(nla);
3531 params->sta_flags_mask = sta_flags->mask;
3532 params->sta_flags_set = sta_flags->set;
77ee7c89 3533 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3534 if ((params->sta_flags_mask |
3535 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3536 return -EINVAL;
3537 return 0;
3538 }
3539
3540 /* if present, parse the old attribute */
5727ef1b 3541
eccb8e8f 3542 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3543 if (!nla)
3544 return 0;
3545
3546 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3547 nla, sta_flags_policy))
3548 return -EINVAL;
3549
bdd3ae3d
JB		 3550 /*
3551 * Only allow certain flags for interface types so that
3552 * other attributes are silently ignored. Remember that
3553 * this is backward compatibility code with old userspace
3554 * and shouldn't be hit in other cases anyway.
3555 */
3556 switch (iftype) {
3557 case NL80211_IFTYPE_AP:
3558 case NL80211_IFTYPE_AP_VLAN:
3559 case NL80211_IFTYPE_P2P_GO:
3560 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3561 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3562 BIT(NL80211_STA_FLAG_WME) |
3563 BIT(NL80211_STA_FLAG_MFP);
3564 break;
3565 case NL80211_IFTYPE_P2P_CLIENT:
3566 case NL80211_IFTYPE_STATION:
3567 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3568 BIT(NL80211_STA_FLAG_TDLS_PEER);
3569 break;
3570 case NL80211_IFTYPE_MESH_POINT:
3571 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3572 BIT(NL80211_STA_FLAG_MFP) |
3573 BIT(NL80211_STA_FLAG_AUTHORIZED);
3574 default:
3575 return -EINVAL;
3576 }
5727ef1b 3577
3383b5a6
JB		 3578 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3579 if (flags[flag]) {
eccb8e8f 3580 params->sta_flags_set |= (1<<flag);
5727ef1b 3581
3383b5a6
JB		 3582 /* no longer support new API additions in old API */
3583 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3584 return -EINVAL;
3585 }
3586 }
3587
5727ef1b
JB		 3588 return 0;
3589}
3590
c8dcfd8a
FF		 3591static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3592 int attr)
3593{
3594 struct nlattr *rate;
8eb41c8d
VK		 3595 u32 bitrate;
3596 u16 bitrate_compat;
b51f3bee 3597 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3598
3599 rate = nla_nest_start(msg, attr);
3600 if (!rate)
db9c64cf 3601 return false;
c8dcfd8a
FF		 3602
3603 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3604 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3605 /* report 16-bit bitrate only if we can */
3606 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3607 if (bitrate > 0 &&
3608 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3609 return false;
3610 if (bitrate_compat > 0 &&
3611 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3612 return false;
3613
b51f3bee
JB		 3614 switch (info->bw) {
3615 case RATE_INFO_BW_5:
3616 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3617 break;
3618 case RATE_INFO_BW_10:
3619 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3620 break;
3621 default:
3622 WARN_ON(1);
3623 /* fall through */
3624 case RATE_INFO_BW_20:
3625 rate_flg = 0;
3626 break;
3627 case RATE_INFO_BW_40:
3628 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3629 break;
3630 case RATE_INFO_BW_80:
3631 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3632 break;
3633 case RATE_INFO_BW_160:
3634 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3635 break;
3636 }
3637
3638 if (rate_flg && nla_put_flag(msg, rate_flg))
3639 return false;
3640
db9c64cf
JB		 3641 if (info->flags & RATE_INFO_FLAGS_MCS) {
3642 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3643 return false;
db9c64cf
JB		 3644 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3645 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3646 return false;
3647 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3648 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3649 return false;
3650 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3651 return false;
db9c64cf
JB		 3652 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3653 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3654 return false;
3655 }
c8dcfd8a
FF		 3656
3657 nla_nest_end(msg, rate);
3658 return true;
c8dcfd8a
FF		 3659}
3660
119363c7
FF		 3661static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3662 int id)
3663{
3664 void *attr;
3665 int i = 0;
3666
3667 if (!mask)
3668 return true;
3669
3670 attr = nla_nest_start(msg, id);
3671 if (!attr)
3672 return false;
3673
3674 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3675 if (!(mask & BIT(i)))
3676 continue;
3677
3678 if (nla_put_u8(msg, i, signal[i]))
3679 return false;
3680 }
3681
3682 nla_nest_end(msg, attr);
3683
3684 return true;
3685}
3686
cf5ead82
JB		 3687static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3688 u32 seq, int flags,
66266b3a
JL		 3689 struct cfg80211_registered_device *rdev,
3690 struct net_device *dev,
98b62183 3691 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3692{
3693 void *hdr;
f4263c98 3694 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3695
cf5ead82 3696 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3697 if (!hdr)
3698 return -1;
3699
9360ffd1
DM		 3700 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3701 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3702 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3703 goto nla_put_failure;
f5ea9120 3704
2ec600d6
LCC		 3705 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3706 if (!sinfoattr)
fd5b74dc 3707 goto nla_put_failure;
319090bf
JB		 3708
3709#define PUT_SINFO(attr, memb, type) do { \
3710 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3711 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3712 sinfo->memb)) \
3713 goto nla_put_failure; \
3714 } while (0)
3715
3716 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3717 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3718
3719 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3720 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3721 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3722 (u32)sinfo->rx_bytes))
9360ffd1 3723 goto nla_put_failure;
319090bf
JB		 3724
3725 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3726 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3727 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3728 (u32)sinfo->tx_bytes))
3729 goto nla_put_failure;
319090bf
JB		 3730
3731 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3732 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3733 PUT_SINFO(LLID, llid, u16);
3734 PUT_SINFO(PLID, plid, u16);
3735 PUT_SINFO(PLINK_STATE, plink_state, u8);
3736
66266b3a
JL		 3737 switch (rdev->wiphy.signal_type) {
3738 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3739 PUT_SINFO(SIGNAL, signal, u8);
3740 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3741 break;
3742 default:
3743 break;
3744 }
319090bf 3745 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3746 if (!nl80211_put_signal(msg, sinfo->chains,
3747 sinfo->chain_signal,
3748 NL80211_STA_INFO_CHAIN_SIGNAL))
3749 goto nla_put_failure;
3750 }
319090bf 3751 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3752 if (!nl80211_put_signal(msg, sinfo->chains,
3753 sinfo->chain_signal_avg,
3754 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3755 goto nla_put_failure;
3756 }
319090bf 3757 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3758 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3759 NL80211_STA_INFO_TX_BITRATE))
3760 goto nla_put_failure;
3761 }
319090bf 3762 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3763 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3764 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3765 goto nla_put_failure;
420e7fab 3766 }
319090bf
JB		 3767
3768 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3769 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3770 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3771 PUT_SINFO(TX_FAILED, tx_failed, u32);
3772 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3773 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3774 PUT_SINFO(LOCAL_PM, local_pm, u32);
3775 PUT_SINFO(PEER_PM, peer_pm, u32);
3776 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3777
3778 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3779 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3780 if (!bss_param)
3781 goto nla_put_failure;
3782
9360ffd1
DM		 3783 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3784 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3785 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3786 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3787 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3788 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3789 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3790 sinfo->bss_param.dtim_period) ||
3791 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3792 sinfo->bss_param.beacon_interval))
3793 goto nla_put_failure;
f4263c98
PS		 3794
3795 nla_nest_end(msg, bss_param);
3796 }
319090bf 3797 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3798 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3799 sizeof(struct nl80211_sta_flag_update),
3800 &sinfo->sta_flags))
3801 goto nla_put_failure;
319090bf
JB		 3802
3803 PUT_SINFO(T_OFFSET, t_offset, u64);
3804 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
a76b1942
JB		 3805 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3806 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3807
3808#undef PUT_SINFO
6de39808
JB		 3809
3810 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3811 struct nlattr *tidsattr;
3812 int tid;
3813
3814 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3815 if (!tidsattr)
3816 goto nla_put_failure;
3817
3818 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3819 struct cfg80211_tid_stats *tidstats;
3820 struct nlattr *tidattr;
3821
3822 tidstats = &sinfo->pertid[tid];
3823
3824 if (!tidstats->filled)
3825 continue;
3826
3827 tidattr = nla_nest_start(msg, tid + 1);
3828 if (!tidattr)
3829 goto nla_put_failure;
3830
3831#define PUT_TIDVAL(attr, memb, type) do { \
3832 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3833 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3834 tidstats->memb)) \
3835 goto nla_put_failure; \
3836 } while (0)
3837
3838 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3839 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3840 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3841 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3842
3843#undef PUT_TIDVAL
3844 nla_nest_end(msg, tidattr);
3845 }
3846
3847 nla_nest_end(msg, tidsattr);
3848 }
3849
2ec600d6 3850 nla_nest_end(msg, sinfoattr);
fd5b74dc 3851
319090bf 3852 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3853 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3854 sinfo->assoc_req_ies))
3855 goto nla_put_failure;
50d3dfb7 3856
053c095a
JB		 3857 genlmsg_end(msg, hdr);
3858 return 0;
fd5b74dc
JB		 3859
3860 nla_put_failure:
bc3ed28c
TG		 3861 genlmsg_cancel(msg, hdr);
3862 return -EMSGSIZE;
fd5b74dc
JB		 3863}
3864
2ec600d6 3865static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3866 struct netlink_callback *cb)
2ec600d6 3867{
2ec600d6 3868 struct station_info sinfo;
1b8ec87a 3869 struct cfg80211_registered_device *rdev;
97990a06 3870 struct wireless_dev *wdev;
2ec600d6 3871 u8 mac_addr[ETH_ALEN];
97990a06 3872 int sta_idx = cb->args[2];
2ec600d6 3873 int err;
2ec600d6 3874
1b8ec87a 3875 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3876 if (err)
3877 return err;
bba95fef 3878
97990a06
JB		 3879 if (!wdev->netdev) {
3880 err = -EINVAL;
3881 goto out_err;
3882 }
3883
1b8ec87a 3884 if (!rdev->ops->dump_station) {
eec60b03 3885 err = -EOPNOTSUPP;
bba95fef
JB		 3886 goto out_err;
3887 }
3888
bba95fef 3889 while (1) {
f612cedf 3890 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3891 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3892 mac_addr, &sinfo);
bba95fef
JB		 3893 if (err == -ENOENT)
3894 break;
3895 if (err)
3b85875a 3896 goto out_err;
bba95fef 3897
cf5ead82 3898 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3899 NETLINK_CB(cb->skb).portid,
bba95fef 3900 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3901 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3902 &sinfo) < 0)
3903 goto out;
3904
3905 sta_idx++;
3906 }
3907
3908
3909 out:
97990a06 3910 cb->args[2] = sta_idx;
bba95fef 3911 err = skb->len;
bba95fef 3912 out_err:
1b8ec87a 3913 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3914
3915 return err;
2ec600d6 3916}
fd5b74dc 3917
5727ef1b
JB		 3918static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3919{
4c476991
JB		 3920 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3921 struct net_device *dev = info->user_ptr[1];
2ec600d6 3922 struct station_info sinfo;
fd5b74dc
JB		 3923 struct sk_buff *msg;
3924 u8 *mac_addr = NULL;
4c476991 3925 int err;
fd5b74dc 3926
2ec600d6 3927 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3928
3929 if (!info->attrs[NL80211_ATTR_MAC])
3930 return -EINVAL;
3931
3932 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3933
4c476991
JB		 3934 if (!rdev->ops->get_station)
3935 return -EOPNOTSUPP;
3b85875a 3936
e35e4d28 3937 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3938 if (err)
4c476991 3939 return err;
2ec600d6 3940
fd2120ca 3941 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3942 if (!msg)
4c476991 3943 return -ENOMEM;
fd5b74dc 3944
cf5ead82
JB		 3945 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3946 info->snd_portid, info->snd_seq, 0,
66266b3a 3947 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3948 nlmsg_free(msg);
3949 return -ENOBUFS;
3950 }
3b85875a 3951
4c476991 3952 return genlmsg_reply(msg, info);
5727ef1b
JB		 3953}
3954
77ee7c89
JB		 3955int cfg80211_check_station_change(struct wiphy *wiphy,
3956 struct station_parameters *params,
3957 enum cfg80211_station_type statype)
3958{
3959 if (params->listen_interval != -1)
3960 return -EINVAL;
c72e1140
AN		 3961 if (params->aid &&
3962 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3963 return -EINVAL;
3964
3965 /* When you run into this, adjust the code below for the new flag */
3966 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3967
3968 switch (statype) {
eef941e6
TP		 3969 case CFG80211_STA_MESH_PEER_KERNEL:
3970 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3971 /*
3972 * No ignoring the TDLS flag here -- the userspace mesh
3973 * code doesn't have the bug of including TDLS in the
3974 * mask everywhere.
3975 */
3976 if (params->sta_flags_mask &
3977 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3978 BIT(NL80211_STA_FLAG_MFP) |
3979 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3980 return -EINVAL;
3981 break;
3982 case CFG80211_STA_TDLS_PEER_SETUP:
3983 case CFG80211_STA_TDLS_PEER_ACTIVE:
3984 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3985 return -EINVAL;
3986 /* ignore since it can't change */
3987 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3988 break;
3989 default:
3990 /* disallow mesh-specific things */
3991 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3992 return -EINVAL;
3993 if (params->local_pm)
3994 return -EINVAL;
3995 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3996 return -EINVAL;
3997 }
3998
3999 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4000 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4001 /* TDLS can't be set, ... */
4002 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4003 return -EINVAL;
4004 /*
4005 * ... but don't bother the driver with it. This works around
4006 * a hostapd/wpa_supplicant issue -- it always includes the
4007 * TLDS_PEER flag in the mask even for AP mode.
4008 */
4009 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4010 }
4011
4012 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
4013 /* reject other things that can't change */
4014 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4015 return -EINVAL;
4016 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4017 return -EINVAL;
4018 if (params->supported_rates)
4019 return -EINVAL;
4020 if (params->ext_capab || params->ht_capa || params->vht_capa)
4021 return -EINVAL;
4022 }
4023
4024 if (statype != CFG80211_STA_AP_CLIENT) {
4025 if (params->vlan)
4026 return -EINVAL;
4027 }
4028
4029 switch (statype) {
4030 case CFG80211_STA_AP_MLME_CLIENT:
4031 /* Use this only for authorizing/unauthorizing a station */
4032 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4033 return -EOPNOTSUPP;
4034 break;
4035 case CFG80211_STA_AP_CLIENT:
4036 /* accept only the listed bits */
4037 if (params->sta_flags_mask &
4038 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4039 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4040 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4041 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4042 BIT(NL80211_STA_FLAG_WME) |
4043 BIT(NL80211_STA_FLAG_MFP)))
4044 return -EINVAL;
4045
4046 /* but authenticated/associated only if driver handles it */
4047 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4048 params->sta_flags_mask &
4049 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4050 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4051 return -EINVAL;
4052 break;
4053 case CFG80211_STA_IBSS:
4054 case CFG80211_STA_AP_STA:
4055 /* reject any changes other than AUTHORIZED */
4056 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4057 return -EINVAL;
4058 break;
4059 case CFG80211_STA_TDLS_PEER_SETUP:
4060 /* reject any changes other than AUTHORIZED or WME */
4061 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4062 BIT(NL80211_STA_FLAG_WME)))
4063 return -EINVAL;
4064 /* force (at least) rates when authorizing */
4065 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4066 !params->supported_rates)
4067 return -EINVAL;
4068 break;
4069 case CFG80211_STA_TDLS_PEER_ACTIVE:
4070 /* reject any changes */
4071 return -EINVAL;
eef941e6 4072 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4073 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4074 return -EINVAL;
4075 break;
eef941e6 4076 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4077 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4078 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4079 return -EINVAL;
4080 break;
4081 }
4082
4083 return 0;
4084}
4085EXPORT_SYMBOL(cfg80211_check_station_change);
4086
5727ef1b 4087/*
c258d2de 4088 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4089 */
80b99899
JB		 4090static struct net_device *get_vlan(struct genl_info *info,
4091 struct cfg80211_registered_device *rdev)
5727ef1b 4092{
463d0183 4093 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4094 struct net_device *v;
4095 int ret;
4096
4097 if (!vlanattr)
4098 return NULL;
4099
4100 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4101 if (!v)
4102 return ERR_PTR(-ENODEV);
4103
4104 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4105 ret = -EINVAL;
4106 goto error;
5727ef1b 4107 }
80b99899 4108
77ee7c89
JB		 4109 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4110 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4111 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4112 ret = -EINVAL;
4113 goto error;
4114 }
4115
80b99899
JB		 4116 if (!netif_running(v)) {
4117 ret = -ENETDOWN;
4118 goto error;
4119 }
4120
4121 return v;
4122 error:
4123 dev_put(v);
4124 return ERR_PTR(ret);
5727ef1b
JB		 4125}
4126
94e860f1
JB		 4127static const struct nla_policy
4128nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4129 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4130 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4131};
4132
ff276691
JB		 4133static int nl80211_parse_sta_wme(struct genl_info *info,
4134 struct station_parameters *params)
df881293 4135{
df881293
JM		 4136 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4137 struct nlattr *nla;
4138 int err;
4139
df881293
JM		 4140 /* parse WME attributes if present */
4141 if (!info->attrs[NL80211_ATTR_STA_WME])
4142 return 0;
4143
4144 nla = info->attrs[NL80211_ATTR_STA_WME];
4145 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4146 nl80211_sta_wme_policy);
4147 if (err)
4148 return err;
4149
4150 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4151 params->uapsd_queues = nla_get_u8(
4152 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4153 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4154 return -EINVAL;
4155
4156 if (tb[NL80211_STA_WME_MAX_SP])
4157 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4158
4159 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4160 return -EINVAL;
4161
4162 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4163
4164 return 0;
4165}
4166
c01fc9ad
SD		 4167static int nl80211_parse_sta_channel_info(struct genl_info *info,
4168 struct station_parameters *params)
4169{
4170 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4171 params->supported_channels =
4172 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4173 params->supported_channels_len =
4174 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4175 /*
4176 * Need to include at least one (first channel, number of
4177 * channels) tuple for each subband, and must have proper
4178 * tuples for the rest of the data as well.
4179 */
4180 if (params->supported_channels_len < 2)
4181 return -EINVAL;
4182 if (params->supported_channels_len % 2)
4183 return -EINVAL;
4184 }
4185
4186 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4187 params->supported_oper_classes =
4188 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4189 params->supported_oper_classes_len =
4190 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4191 /*
4192 * The value of the Length field of the Supported Operating
4193 * Classes element is between 2 and 253.
4194 */
4195 if (params->supported_oper_classes_len < 2 ||
4196 params->supported_oper_classes_len > 253)
4197 return -EINVAL;
4198 }
4199 return 0;
4200}
4201
ff276691
JB		 4202static int nl80211_set_station_tdls(struct genl_info *info,
4203 struct station_parameters *params)
4204{
c01fc9ad 4205 int err;
ff276691 4206 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4207 if (info->attrs[NL80211_ATTR_PEER_AID])
4208 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4209 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4210 params->ht_capa =
4211 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4212 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4213 params->vht_capa =
4214 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4215
c01fc9ad
SD		 4216 err = nl80211_parse_sta_channel_info(info, params);
4217 if (err)
4218 return err;
4219
ff276691
JB		 4220 return nl80211_parse_sta_wme(info, params);
4221}
4222
5727ef1b
JB		 4223static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4224{
4c476991 4225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4226 struct net_device *dev = info->user_ptr[1];
5727ef1b 4227 struct station_parameters params;
77ee7c89
JB		 4228 u8 *mac_addr;
4229 int err;
5727ef1b
JB		 4230
4231 memset(&params, 0, sizeof(params));
4232
4233 params.listen_interval = -1;
4234
77ee7c89
JB		 4235 if (!rdev->ops->change_station)
4236 return -EOPNOTSUPP;
4237
5727ef1b
JB		 4238 if (info->attrs[NL80211_ATTR_STA_AID])
4239 return -EINVAL;
4240
4241 if (!info->attrs[NL80211_ATTR_MAC])
4242 return -EINVAL;
4243
4244 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4245
4246 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4247 params.supported_rates =
4248 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4249 params.supported_rates_len =
4250 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4251 }
4252
9d62a986
JM		 4253 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4254 params.capability =
4255 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4256 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4257 }
4258
4259 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4260 params.ext_capab =
4261 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4262 params.ext_capab_len =
4263 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4264 }
4265
df881293 4266 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4267 return -EINVAL;
36aedc90 4268
bdd3ae3d 4269 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4270 return -EINVAL;
4271
f8bacc21 4272 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4273 params.plink_action =
f8bacc21
JB		 4274 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4275 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4276 return -EINVAL;
4277 }
2ec600d6 4278
f8bacc21 4279 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4280 params.plink_state =
f8bacc21
JB		 4281 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4282 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4283 return -EINVAL;
4284 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4285 }
9c3990aa 4286
3b1c5a53
MP		 4287 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4288 enum nl80211_mesh_power_mode pm = nla_get_u32(
4289 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4290
4291 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4292 pm > NL80211_MESH_POWER_MAX)
4293 return -EINVAL;
4294
4295 params.local_pm = pm;
4296 }
4297
77ee7c89
JB		 4298 /* Include parameters for TDLS peer (will check later) */
4299 err = nl80211_set_station_tdls(info, &params);
4300 if (err)
4301 return err;
4302
4303 params.vlan = get_vlan(info, rdev);
4304 if (IS_ERR(params.vlan))
4305 return PTR_ERR(params.vlan);
4306
a97f4424
JB		 4307 switch (dev->ieee80211_ptr->iftype) {
4308 case NL80211_IFTYPE_AP:
4309 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4310 case NL80211_IFTYPE_P2P_GO:
074ac8df 4311 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4312 case NL80211_IFTYPE_STATION:
267335d6 4313 case NL80211_IFTYPE_ADHOC:
a97f4424 4314 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4315 break;
4316 default:
77ee7c89
JB		 4317 err = -EOPNOTSUPP;
4318 goto out_put_vlan;
034d655e
JB		 4319 }
4320
77ee7c89 4321 /* driver will call cfg80211_check_station_change() */
e35e4d28 4322 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4323
77ee7c89 4324 out_put_vlan:
5727ef1b
JB		 4325 if (params.vlan)
4326 dev_put(params.vlan);
3b85875a 4327
5727ef1b
JB		 4328 return err;
4329}
4330
4331static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4332{
4c476991 4333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4334 int err;
4c476991 4335 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4336 struct station_parameters params;
4337 u8 *mac_addr = NULL;
4338
4339 memset(&params, 0, sizeof(params));
4340
984c311b
JB		 4341 if (!rdev->ops->add_station)
4342 return -EOPNOTSUPP;
4343
5727ef1b
JB		 4344 if (!info->attrs[NL80211_ATTR_MAC])
4345 return -EINVAL;
4346
5727ef1b
JB		 4347 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4348 return -EINVAL;
4349
4350 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4351 return -EINVAL;
4352
5e4b6f56
JM		 4353 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4354 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4355 return -EINVAL;
4356
5727ef1b
JB		 4357 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4358 params.supported_rates =
4359 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4360 params.supported_rates_len =
4361 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4362 params.listen_interval =
4363 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4364
3d124ea2 4365 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4366 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4367 else
4368 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4369 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4370 return -EINVAL;
51b50fbe 4371
9d62a986
JM		 4372 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4373 params.capability =
4374 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4375 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4376 }
4377
4378 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4379 params.ext_capab =
4380 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4381 params.ext_capab_len =
4382 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4383 }
4384
36aedc90
JM		 4385 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4386 params.ht_capa =
4387 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4388
f461be3e
MP		 4389 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4390 params.vht_capa =
4391 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4392
60f4a7b1
MK		 4393 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4394 params.opmode_notif_used = true;
4395 params.opmode_notif =
4396 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4397 }
4398
f8bacc21 4399 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4400 params.plink_action =
f8bacc21
JB		 4401 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4402 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4403 return -EINVAL;
4404 }
96b78dff 4405
c01fc9ad
SD		 4406 err = nl80211_parse_sta_channel_info(info, &params);
4407 if (err)
4408 return err;
4409
ff276691
JB		 4410 err = nl80211_parse_sta_wme(info, &params);
4411 if (err)
4412 return err;
bdd90d5e 4413
bdd3ae3d 4414 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4415 return -EINVAL;
4416
496fcc29
JB		 4417 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4418 * as userspace might just pass through the capabilities from the IEs
4419 * directly, rather than enforcing this restriction and returning an
4420 * error in this case.
4421 */
4422 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4423 params.ht_capa = NULL;
4424 params.vht_capa = NULL;
4425 }
4426
77ee7c89
JB		 4427 /* When you run into this, adjust the code below for the new flag */
4428 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4429
bdd90d5e
JB		 4430 switch (dev->ieee80211_ptr->iftype) {
4431 case NL80211_IFTYPE_AP:
4432 case NL80211_IFTYPE_AP_VLAN:
4433 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4434 /* ignore WME attributes if iface/sta is not capable */
4435 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4436 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4437 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4438
bdd90d5e 4439 /* TDLS peers cannot be added */
3d124ea2
JM		 4440 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4441 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4442 return -EINVAL;
bdd90d5e
JB		 4443 /* but don't bother the driver with it */
4444 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4445
d582cffb
JB		 4446 /* allow authenticated/associated only if driver handles it */
4447 if (!(rdev->wiphy.features &
4448 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4449 params.sta_flags_mask &
4450 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4451 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4452 return -EINVAL;
4453
bdd90d5e
JB		 4454 /* must be last in here for error handling */
4455 params.vlan = get_vlan(info, rdev);
4456 if (IS_ERR(params.vlan))
4457 return PTR_ERR(params.vlan);
4458 break;
4459 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4460 /* ignore uAPSD data */
4461 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4462
d582cffb
JB		 4463 /* associated is disallowed */
4464 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4465 return -EINVAL;
bdd90d5e 4466 /* TDLS peers cannot be added */
3d124ea2
JM		 4467 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4468 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4469 return -EINVAL;
4470 break;
4471 case NL80211_IFTYPE_STATION:
93d08f0b 4472 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4473 /* ignore uAPSD data */
4474 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4475
77ee7c89
JB		 4476 /* these are disallowed */
4477 if (params.sta_flags_mask &
4478 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4479 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4480 return -EINVAL;
bdd90d5e
JB		 4481 /* Only TDLS peers can be added */
4482 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4483 return -EINVAL;
4484 /* Can only add if TDLS ... */
4485 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4486 return -EOPNOTSUPP;
4487 /* ... with external setup is supported */
4488 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4489 return -EOPNOTSUPP;
77ee7c89
JB		 4490 /*
4491 * Older wpa_supplicant versions always mark the TDLS peer
4492 * as authorized, but it shouldn't yet be.
4493 */
4494 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4495 break;
4496 default:
4497 return -EOPNOTSUPP;
c75786c9
EP		 4498 }
4499
bdd90d5e 4500 /* be aware of params.vlan when changing code here */
5727ef1b 4501
e35e4d28 4502 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4503
5727ef1b
JB		 4504 if (params.vlan)
4505 dev_put(params.vlan);
5727ef1b
JB		 4506 return err;
4507}
4508
4509static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4510{
4c476991
JB		 4511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4512 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4513 struct station_del_parameters params;
4514
4515 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4516
4517 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4518 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4519
e80cf853 4520 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4521 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4522 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4523 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4524 return -EINVAL;
5727ef1b 4525
4c476991
JB		 4526 if (!rdev->ops->del_station)
4527 return -EOPNOTSUPP;
3b85875a 4528
98856866
JM		 4529 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4530 params.subtype =
4531 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4532 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4533 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4534 return -EINVAL;
4535 } else {
4536 /* Default to Deauthentication frame */
4537 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4538 }
4539
4540 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4541 params.reason_code =
4542 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4543 if (params.reason_code == 0)
4544 return -EINVAL; /* 0 is reserved */
4545 } else {
4546 /* Default to reason code 2 */
4547 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4548 }
4549
89c771e5 4550 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4551}
4552
15e47304 4553static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4554 int flags, struct net_device *dev,
4555 u8 *dst, u8 *next_hop,
4556 struct mpath_info *pinfo)
4557{
4558 void *hdr;
4559 struct nlattr *pinfoattr;
4560
1ef4c850 4561 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4562 if (!hdr)
4563 return -1;
4564
9360ffd1
DM		 4565 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4566 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4567 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4568 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4569 goto nla_put_failure;
f5ea9120 4570
2ec600d6
LCC		 4571 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4572 if (!pinfoattr)
4573 goto nla_put_failure;
9360ffd1
DM		 4574 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4575 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4576 pinfo->frame_qlen))
4577 goto nla_put_failure;
4578 if (((pinfo->filled & MPATH_INFO_SN) &&
4579 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4580 ((pinfo->filled & MPATH_INFO_METRIC) &&
4581 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4582 pinfo->metric)) ||
4583 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4584 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4585 pinfo->exptime)) ||
4586 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4587 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4588 pinfo->flags)) ||
4589 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4590 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4591 pinfo->discovery_timeout)) ||
4592 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4593 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4594 pinfo->discovery_retries)))
4595 goto nla_put_failure;
2ec600d6
LCC		 4596
4597 nla_nest_end(msg, pinfoattr);
4598
053c095a
JB		 4599 genlmsg_end(msg, hdr);
4600 return 0;
2ec600d6
LCC		 4601
4602 nla_put_failure:
bc3ed28c
TG		 4603 genlmsg_cancel(msg, hdr);
4604 return -EMSGSIZE;
2ec600d6
LCC		 4605}
4606
4607static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4608 struct netlink_callback *cb)
2ec600d6 4609{
2ec600d6 4610 struct mpath_info pinfo;
1b8ec87a 4611 struct cfg80211_registered_device *rdev;
97990a06 4612 struct wireless_dev *wdev;
2ec600d6
LCC		 4613 u8 dst[ETH_ALEN];
4614 u8 next_hop[ETH_ALEN];
97990a06 4615 int path_idx = cb->args[2];
2ec600d6 4616 int err;
2ec600d6 4617
1b8ec87a 4618 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4619 if (err)
4620 return err;
bba95fef 4621
1b8ec87a 4622 if (!rdev->ops->dump_mpath) {
eec60b03 4623 err = -EOPNOTSUPP;
bba95fef
JB		 4624 goto out_err;
4625 }
4626
97990a06 4627 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4628 err = -EOPNOTSUPP;
0448b5fc 4629 goto out_err;
eec60b03
JM		 4630 }
4631
bba95fef 4632 while (1) {
1b8ec87a 4633 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4634 next_hop, &pinfo);
bba95fef 4635 if (err == -ENOENT)
2ec600d6 4636 break;
bba95fef 4637 if (err)
3b85875a 4638 goto out_err;
2ec600d6 4639
15e47304 4640 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4641 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4642 wdev->netdev, dst, next_hop,
bba95fef
JB		 4643 &pinfo) < 0)
4644 goto out;
2ec600d6 4645
bba95fef 4646 path_idx++;
2ec600d6 4647 }
2ec600d6 4648
2ec600d6 4649
bba95fef 4650 out:
97990a06 4651 cb->args[2] = path_idx;
bba95fef 4652 err = skb->len;
bba95fef 4653 out_err:
1b8ec87a 4654 nl80211_finish_wdev_dump(rdev);
bba95fef 4655 return err;
2ec600d6
LCC		 4656}
4657
4658static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4659{
4c476991 4660 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4661 int err;
4c476991 4662 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4663 struct mpath_info pinfo;
4664 struct sk_buff *msg;
4665 u8 *dst = NULL;
4666 u8 next_hop[ETH_ALEN];
4667
4668 memset(&pinfo, 0, sizeof(pinfo));
4669
4670 if (!info->attrs[NL80211_ATTR_MAC])
4671 return -EINVAL;
4672
4673 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4674
4c476991
JB		 4675 if (!rdev->ops->get_mpath)
4676 return -EOPNOTSUPP;
2ec600d6 4677
4c476991
JB		 4678 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4679 return -EOPNOTSUPP;
eec60b03 4680
e35e4d28 4681 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4682 if (err)
4c476991 4683 return err;
2ec600d6 4684
fd2120ca 4685 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4686 if (!msg)
4c476991 4687 return -ENOMEM;
2ec600d6 4688
15e47304 4689 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4690 dev, dst, next_hop, &pinfo) < 0) {
4691 nlmsg_free(msg);
4692 return -ENOBUFS;
4693 }
3b85875a 4694
4c476991 4695 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4696}
4697
4698static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4699{
4c476991
JB		 4700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4701 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4702 u8 *dst = NULL;
4703 u8 *next_hop = NULL;
4704
4705 if (!info->attrs[NL80211_ATTR_MAC])
4706 return -EINVAL;
4707
4708 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4709 return -EINVAL;
4710
4711 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4712 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4713
4c476991
JB		 4714 if (!rdev->ops->change_mpath)
4715 return -EOPNOTSUPP;
35a8efe1 4716
4c476991
JB		 4717 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4718 return -EOPNOTSUPP;
2ec600d6 4719
e35e4d28 4720 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4721}
4c476991 4722
2ec600d6
LCC		 4723static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4724{
4c476991
JB		 4725 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4726 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4727 u8 *dst = NULL;
4728 u8 *next_hop = NULL;
4729
4730 if (!info->attrs[NL80211_ATTR_MAC])
4731 return -EINVAL;
4732
4733 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4734 return -EINVAL;
4735
4736 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4737 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4738
4c476991
JB		 4739 if (!rdev->ops->add_mpath)
4740 return -EOPNOTSUPP;
35a8efe1 4741
4c476991
JB		 4742 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4743 return -EOPNOTSUPP;
2ec600d6 4744
e35e4d28 4745 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4746}
4747
4748static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4749{
4c476991
JB		 4750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4751 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4752 u8 *dst = NULL;
4753
4754 if (info->attrs[NL80211_ATTR_MAC])
4755 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4756
4c476991
JB		 4757 if (!rdev->ops->del_mpath)
4758 return -EOPNOTSUPP;
3b85875a 4759
e35e4d28 4760 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4761}
4762
66be7d2b
HR		 4763static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4764{
4765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4766 int err;
4767 struct net_device *dev = info->user_ptr[1];
4768 struct mpath_info pinfo;
4769 struct sk_buff *msg;
4770 u8 *dst = NULL;
4771 u8 mpp[ETH_ALEN];
4772
4773 memset(&pinfo, 0, sizeof(pinfo));
4774
4775 if (!info->attrs[NL80211_ATTR_MAC])
4776 return -EINVAL;
4777
4778 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4779
4780 if (!rdev->ops->get_mpp)
4781 return -EOPNOTSUPP;
4782
4783 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4784 return -EOPNOTSUPP;
4785
4786 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4787 if (err)
4788 return err;
4789
4790 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4791 if (!msg)
4792 return -ENOMEM;
4793
4794 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4795 dev, dst, mpp, &pinfo) < 0) {
4796 nlmsg_free(msg);
4797 return -ENOBUFS;
4798 }
4799
4800 return genlmsg_reply(msg, info);
4801}
4802
4803static int nl80211_dump_mpp(struct sk_buff *skb,
4804 struct netlink_callback *cb)
4805{
4806 struct mpath_info pinfo;
4807 struct cfg80211_registered_device *rdev;
4808 struct wireless_dev *wdev;
4809 u8 dst[ETH_ALEN];
4810 u8 mpp[ETH_ALEN];
4811 int path_idx = cb->args[2];
4812 int err;
4813
4814 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4815 if (err)
4816 return err;
4817
4818 if (!rdev->ops->dump_mpp) {
4819 err = -EOPNOTSUPP;
4820 goto out_err;
4821 }
4822
4823 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4824 err = -EOPNOTSUPP;
4825 goto out_err;
4826 }
4827
4828 while (1) {
4829 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4830 mpp, &pinfo);
4831 if (err == -ENOENT)
4832 break;
4833 if (err)
4834 goto out_err;
4835
4836 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4837 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4838 wdev->netdev, dst, mpp,
4839 &pinfo) < 0)
4840 goto out;
4841
4842 path_idx++;
4843 }
4844
4845 out:
4846 cb->args[2] = path_idx;
4847 err = skb->len;
4848 out_err:
4849 nl80211_finish_wdev_dump(rdev);
4850 return err;
4851}
4852
9f1ba906
JM		 4853static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4854{
4c476991
JB		 4855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4856 struct net_device *dev = info->user_ptr[1];
c56589ed 4857 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4858 struct bss_parameters params;
c56589ed 4859 int err;
9f1ba906
JM		 4860
4861 memset(&params, 0, sizeof(params));
4862 /* default to not changing parameters */
4863 params.use_cts_prot = -1;
4864 params.use_short_preamble = -1;
4865 params.use_short_slot_time = -1;
fd8aaaf3 4866 params.ap_isolate = -1;
50b12f59 4867 params.ht_opmode = -1;
53cabad7
JB		 4868 params.p2p_ctwindow = -1;
4869 params.p2p_opp_ps = -1;
9f1ba906
JM		 4870
4871 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4872 params.use_cts_prot =
4873 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4874 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4875 params.use_short_preamble =
4876 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4877 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4878 params.use_short_slot_time =
4879 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4880 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4881 params.basic_rates =
4882 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4883 params.basic_rates_len =
4884 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4885 }
fd8aaaf3
FF		 4886 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4887 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4888 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4889 params.ht_opmode =
4890 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4891
53cabad7
JB		 4892 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4893 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4894 return -EINVAL;
4895 params.p2p_ctwindow =
4896 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4897 if (params.p2p_ctwindow < 0)
4898 return -EINVAL;
4899 if (params.p2p_ctwindow != 0 &&
4900 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4901 return -EINVAL;
4902 }
4903
4904 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4905 u8 tmp;
4906
4907 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4908 return -EINVAL;
4909 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4910 if (tmp > 1)
4911 return -EINVAL;
4912 params.p2p_opp_ps = tmp;
4913 if (params.p2p_opp_ps &&
4914 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4915 return -EINVAL;
4916 }
4917
4c476991
JB		 4918 if (!rdev->ops->change_bss)
4919 return -EOPNOTSUPP;
9f1ba906 4920
074ac8df 4921 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4922 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4923 return -EOPNOTSUPP;
3b85875a 4924
c56589ed
SW		 4925 wdev_lock(wdev);
4926 err = rdev_change_bss(rdev, dev, &params);
4927 wdev_unlock(wdev);
4928
4929 return err;
9f1ba906
JM		 4930}
4931
b54452b0 4932static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4933 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4934 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4935 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4936 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4937 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4938 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4939 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4940};
4941
4942static int parse_reg_rule(struct nlattr *tb[],
4943 struct ieee80211_reg_rule *reg_rule)
4944{
4945 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4946 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4947
4948 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4949 return -EINVAL;
4950 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4951 return -EINVAL;
4952 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4953 return -EINVAL;
b0dfd2ea
JD		 4954 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4955 return -EINVAL;
b2e1b302
LR		 4956 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4957 return -EINVAL;
4958
4959 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4960
4961 freq_range->start_freq_khz =
4962 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4963 freq_range->end_freq_khz =
4964 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4965 freq_range->max_bandwidth_khz =
4966 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4967
4968 power_rule->max_eirp =
4969 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4970
4971 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4972 power_rule->max_antenna_gain =
4973 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4974
089027e5
JD		 4975 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4976 reg_rule->dfs_cac_ms =
4977 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4978
b2e1b302
LR		 4979 return 0;
4980}
4981
4982static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4983{
b2e1b302 4984 char *data = NULL;
05050753 4985 bool is_indoor;
57b5ce07 4986 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 4987 u32 owner_nlportid;
4988
b2e1b302 4989
80778f18
LR		 4990 /*
4991 * You should only get this when cfg80211 hasn't yet initialized
4992 * completely when built-in to the kernel right between the time
4993 * window between nl80211_init() and regulatory_init(), if that is
4994 * even possible.
4995 */
458f4f9e 4996 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4997 return -EINPROGRESS;
80778f18 4998
57b5ce07
LR		 4999 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5000 user_reg_hint_type =
5001 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5002 else
5003 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5004
5005 switch (user_reg_hint_type) {
5006 case NL80211_USER_REG_HINT_USER:
5007 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 5008 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5009 return -EINVAL;
5010
5011 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5012 return regulatory_hint_user(data, user_reg_hint_type);
5013 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5014 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5015 owner_nlportid = info->snd_portid;
5016 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5017 } else {
5018 owner_nlportid = 0;
5019 is_indoor = true;
5020 }
5021
5022 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5023 default:
5024 return -EINVAL;
5025 }
b2e1b302
LR		 5026}
5027
24bdd9f4 5028static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5029 struct genl_info *info)
93da9cc1 5030{
4c476991 5031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5032 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5033 struct wireless_dev *wdev = dev->ieee80211_ptr;
5034 struct mesh_config cur_params;
5035 int err = 0;
93da9cc1 5036 void *hdr;
5037 struct nlattr *pinfoattr;
5038 struct sk_buff *msg;
5039
29cbe68c
JB		 5040 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5041 return -EOPNOTSUPP;
5042
24bdd9f4 5043 if (!rdev->ops->get_mesh_config)
4c476991 5044 return -EOPNOTSUPP;
f3f92586 5045
29cbe68c
JB		 5046 wdev_lock(wdev);
5047 /* If not connected, get default parameters */
5048 if (!wdev->mesh_id_len)
5049 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5050 else
e35e4d28 5051 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5052 wdev_unlock(wdev);
5053
93da9cc1 5054 if (err)
4c476991 5055 return err;
93da9cc1 5056
5057 /* Draw up a netlink message to send back */
fd2120ca 5058 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5059 if (!msg)
5060 return -ENOMEM;
15e47304 5061 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5062 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5063 if (!hdr)
efe1cf0c 5064 goto out;
24bdd9f4 5065 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5066 if (!pinfoattr)
5067 goto nla_put_failure;
9360ffd1
DM		 5068 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5069 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5070 cur_params.dot11MeshRetryTimeout) ||
5071 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5072 cur_params.dot11MeshConfirmTimeout) ||
5073 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5074 cur_params.dot11MeshHoldingTimeout) ||
5075 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5076 cur_params.dot11MeshMaxPeerLinks) ||
5077 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5078 cur_params.dot11MeshMaxRetries) ||
5079 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5080 cur_params.dot11MeshTTL) ||
5081 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5082 cur_params.element_ttl) ||
5083 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5084 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5085 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5086 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5087 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5088 cur_params.dot11MeshHWMPmaxPREQretries) ||
5089 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5090 cur_params.path_refresh_time) ||
5091 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5092 cur_params.min_discovery_timeout) ||
5093 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5094 cur_params.dot11MeshHWMPactivePathTimeout) ||
5095 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5096 cur_params.dot11MeshHWMPpreqMinInterval) ||
5097 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5098 cur_params.dot11MeshHWMPperrMinInterval) ||
5099 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5100 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5101 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5102 cur_params.dot11MeshHWMPRootMode) ||
5103 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5104 cur_params.dot11MeshHWMPRannInterval) ||
5105 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5106 cur_params.dot11MeshGateAnnouncementProtocol) ||
5107 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5108 cur_params.dot11MeshForwarding) ||
5109 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5110 cur_params.rssi_threshold) ||
5111 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5112 cur_params.ht_opmode) ||
5113 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5114 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5115 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5116 cur_params.dot11MeshHWMProotInterval) ||
5117 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5118 cur_params.dot11MeshHWMPconfirmationInterval) ||
5119 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5120 cur_params.power_mode) ||
5121 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5122 cur_params.dot11MeshAwakeWindowDuration) ||
5123 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5124 cur_params.plink_timeout))
9360ffd1 5125 goto nla_put_failure;
93da9cc1 5126 nla_nest_end(msg, pinfoattr);
5127 genlmsg_end(msg, hdr);
4c476991 5128 return genlmsg_reply(msg, info);
93da9cc1 5129
3b85875a 5130 nla_put_failure:
93da9cc1 5131 genlmsg_cancel(msg, hdr);
efe1cf0c 5132 out:
d080e275 5133 nlmsg_free(msg);
4c476991 5134 return -ENOBUFS;
93da9cc1 5135}
5136
b54452b0 5137static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5138 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5139 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5140 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5141 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5142 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5143 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5144 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5145 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5146 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5147 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5148 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5149 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5150 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5151 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5152 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5153 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5154 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5155 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5156 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5157 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5158 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5159 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5160 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5161 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5162 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5163 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5164 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5165 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5166};
5167
c80d545d
JC		 5168static const struct nla_policy
5169 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5170 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5171 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5172 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5173 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5174 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5175 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5176 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5177 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5178 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5179};
5180
24bdd9f4 5181static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5182 struct mesh_config *cfg,
5183 u32 *mask_out)
93da9cc1 5184{
93da9cc1 5185 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5186 u32 mask = 0;
93da9cc1 5187
ea54fba2
MP		 5188#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5189do { \
5190 if (tb[attr]) { \
5191 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5192 return -EINVAL; \
5193 cfg->param = fn(tb[attr]); \
5194 mask |= (1 << (attr - 1)); \
5195 } \
5196} while (0)
bd90fdcc
JB		 5197
5198
24bdd9f4 5199 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5200 return -EINVAL;
5201 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5202 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5203 nl80211_meshconf_params_policy))
93da9cc1 5204 return -EINVAL;
5205
93da9cc1 5206 /* This makes sure that there aren't more than 32 mesh config
5207 * parameters (otherwise our bitfield scheme would not work.) */
5208 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5209
5210 /* Fill in the params struct */
ea54fba2 5211 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5212 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5213 nla_get_u16);
ea54fba2 5214 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5215 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5216 nla_get_u16);
ea54fba2 5217 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5218 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5219 nla_get_u16);
ea54fba2 5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5221 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5222 nla_get_u16);
ea54fba2 5223 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5224 mask, NL80211_MESHCONF_MAX_RETRIES,
5225 nla_get_u8);
ea54fba2 5226 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5227 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5228 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5229 mask, NL80211_MESHCONF_ELEMENT_TTL,
5230 nla_get_u8);
ea54fba2 5231 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5232 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5233 nla_get_u8);
ea54fba2
MP		 5234 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5235 1, 255, mask,
a4f606ea
CYY		 5236 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5237 nla_get_u32);
ea54fba2 5238 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5239 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5240 nla_get_u8);
ea54fba2 5241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5242 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5243 nla_get_u32);
ea54fba2 5244 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5245 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5246 nla_get_u16);
ea54fba2
MP		 5247 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5248 1, 65535, mask,
a4f606ea
CYY		 5249 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5250 nla_get_u32);
93da9cc1 5251 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5252 1, 65535, mask,
5253 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5254 nla_get_u16);
dca7e943 5255 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5256 1, 65535, mask,
5257 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5258 nla_get_u16);
93da9cc1 5259 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5260 dot11MeshHWMPnetDiameterTraversalTime,
5261 1, 65535, mask,
a4f606ea
CYY		 5262 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5263 nla_get_u16);
ea54fba2
MP		 5264 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5265 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5266 nla_get_u8);
5267 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5268 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5269 nla_get_u16);
63c5723b 5270 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5271 dot11MeshGateAnnouncementProtocol, 0, 1,
5272 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5273 nla_get_u8);
ea54fba2 5274 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5275 mask, NL80211_MESHCONF_FORWARDING,
5276 nla_get_u8);
83374fe9 5277 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5278 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5279 nla_get_s32);
ea54fba2 5280 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5281 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5282 nla_get_u16);
5283 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5284 1, 65535, mask,
ac1073a6
CYY		 5285 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5286 nla_get_u32);
ea54fba2 5287 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5288 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5289 nla_get_u16);
5290 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5291 dot11MeshHWMPconfirmationInterval,
5292 1, 65535, mask,
728b19e5 5293 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5294 nla_get_u16);
3b1c5a53
MP		 5295 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5296 NL80211_MESH_POWER_ACTIVE,
5297 NL80211_MESH_POWER_MAX,
5298 mask, NL80211_MESHCONF_POWER_MODE,
5299 nla_get_u32);
5300 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5301 0, 65535, mask,
5302 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
31f909a2 5303 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538
CT		 5304 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5305 nla_get_u32);
bd90fdcc
JB		 5306 if (mask_out)
5307 *mask_out = mask;
c80d545d 5308
bd90fdcc
JB		 5309 return 0;
5310
5311#undef FILL_IN_MESH_PARAM_IF_SET
5312}
5313
c80d545d
JC		 5314static int nl80211_parse_mesh_setup(struct genl_info *info,
5315 struct mesh_setup *setup)
5316{
bb2798d4 5317 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5318 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5319
5320 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5321 return -EINVAL;
5322 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5323 info->attrs[NL80211_ATTR_MESH_SETUP],
5324 nl80211_mesh_setup_params_policy))
5325 return -EINVAL;
5326
d299a1f2
JC		 5327 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5328 setup->sync_method =
5329 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5330 IEEE80211_SYNC_METHOD_VENDOR :
5331 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5332
c80d545d
JC		 5333 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5334 setup->path_sel_proto =
5335 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5336 IEEE80211_PATH_PROTOCOL_VENDOR :
5337 IEEE80211_PATH_PROTOCOL_HWMP;
5338
5339 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5340 setup->path_metric =
5341 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5342 IEEE80211_PATH_METRIC_VENDOR :
5343 IEEE80211_PATH_METRIC_AIRTIME;
5344
581a8b0f
JC		 5345
5346 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5347 struct nlattr *ieattr =
581a8b0f 5348 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5349 if (!is_valid_ie_attr(ieattr))
5350 return -EINVAL;
581a8b0f
JC		 5351 setup->ie = nla_data(ieattr);
5352 setup->ie_len = nla_len(ieattr);
c80d545d 5353 }
bb2798d4
TP		 5354 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5355 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5356 return -EINVAL;
5357 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5358 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5359 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5360 if (setup->is_secure)
5361 setup->user_mpm = true;
c80d545d 5362
6e16d90b
CT		 5363 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5364 if (!setup->user_mpm)
5365 return -EINVAL;
5366 setup->auth_id =
5367 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5368 }
5369
c80d545d
JC		 5370 return 0;
5371}
5372
24bdd9f4 5373static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5374 struct genl_info *info)
bd90fdcc
JB		 5375{
5376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5377 struct net_device *dev = info->user_ptr[1];
29cbe68c 5378 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5379 struct mesh_config cfg;
5380 u32 mask;
5381 int err;
5382
29cbe68c
JB		 5383 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5384 return -EOPNOTSUPP;
5385
24bdd9f4 5386 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5387 return -EOPNOTSUPP;
5388
24bdd9f4 5389 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5390 if (err)
5391 return err;
5392
29cbe68c
JB		 5393 wdev_lock(wdev);
5394 if (!wdev->mesh_id_len)
5395 err = -ENOLINK;
5396
5397 if (!err)
e35e4d28 5398 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5399
5400 wdev_unlock(wdev);
5401
5402 return err;
93da9cc1 5403}
5404
ad30ca2c
AN		 5405static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5406 struct sk_buff *msg)
f130347c 5407{
f130347c
LR		 5408 struct nlattr *nl_reg_rules;
5409 unsigned int i;
f130347c 5410
458f4f9e
JB		 5411 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5412 (regdom->dfs_region &&
5413 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5414 goto nla_put_failure;
458f4f9e 5415
f130347c
LR		 5416 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5417 if (!nl_reg_rules)
ad30ca2c 5418 goto nla_put_failure;
f130347c 5419
458f4f9e 5420 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5421 struct nlattr *nl_reg_rule;
5422 const struct ieee80211_reg_rule *reg_rule;
5423 const struct ieee80211_freq_range *freq_range;
5424 const struct ieee80211_power_rule *power_rule;
97524820 5425 unsigned int max_bandwidth_khz;
f130347c 5426
458f4f9e 5427 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5428 freq_range = &reg_rule->freq_range;
5429 power_rule = &reg_rule->power_rule;
5430
5431 nl_reg_rule = nla_nest_start(msg, i);
5432 if (!nl_reg_rule)
ad30ca2c 5433 goto nla_put_failure;
f130347c 5434
97524820
JD		 5435 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5436 if (!max_bandwidth_khz)
5437 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5438 reg_rule);
5439
9360ffd1
DM		 5440 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5441 reg_rule->flags) ||
5442 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5443 freq_range->start_freq_khz) ||
5444 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5445 freq_range->end_freq_khz) ||
5446 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5447 max_bandwidth_khz) ||
9360ffd1
DM		 5448 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5449 power_rule->max_antenna_gain) ||
5450 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5451 power_rule->max_eirp) ||
5452 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5453 reg_rule->dfs_cac_ms))
ad30ca2c 5454 goto nla_put_failure;
f130347c
LR		 5455
5456 nla_nest_end(msg, nl_reg_rule);
5457 }
5458
5459 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5460 return 0;
5461
5462nla_put_failure:
5463 return -EMSGSIZE;
5464}
5465
5466static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5467{
5468 const struct ieee80211_regdomain *regdom = NULL;
5469 struct cfg80211_registered_device *rdev;
5470 struct wiphy *wiphy = NULL;
5471 struct sk_buff *msg;
5472 void *hdr;
5473
5474 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5475 if (!msg)
5476 return -ENOBUFS;
5477
5478 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5479 NL80211_CMD_GET_REG);
5480 if (!hdr)
5481 goto put_failure;
5482
5483 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5484 bool self_managed;
5485
ad30ca2c
AN		 5486 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5487 if (IS_ERR(rdev)) {
5488 nlmsg_free(msg);
5489 return PTR_ERR(rdev);
5490 }
5491
5492 wiphy = &rdev->wiphy;
1bdd716c
AN		 5493 self_managed = wiphy->regulatory_flags &
5494 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5495 regdom = get_wiphy_regdom(wiphy);
5496
1bdd716c
AN		 5497 /* a self-managed-reg device must have a private regdom */
5498 if (WARN_ON(!regdom && self_managed)) {
5499 nlmsg_free(msg);
5500 return -EINVAL;
5501 }
5502
ad30ca2c
AN		 5503 if (regdom &&
5504 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5505 goto nla_put_failure;
5506 }
5507
5508 if (!wiphy && reg_last_request_cell_base() &&
5509 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5510 NL80211_USER_REG_HINT_CELL_BASE))
5511 goto nla_put_failure;
5512
5513 rcu_read_lock();
5514
5515 if (!regdom)
5516 regdom = rcu_dereference(cfg80211_regdomain);
5517
5518 if (nl80211_put_regdom(regdom, msg))
5519 goto nla_put_failure_rcu;
5520
5521 rcu_read_unlock();
f130347c
LR		 5522
5523 genlmsg_end(msg, hdr);
5fe231e8 5524 return genlmsg_reply(msg, info);
f130347c 5525
458f4f9e
JB		 5526nla_put_failure_rcu:
5527 rcu_read_unlock();
f130347c
LR		 5528nla_put_failure:
5529 genlmsg_cancel(msg, hdr);
efe1cf0c 5530put_failure:
d080e275 5531 nlmsg_free(msg);
5fe231e8 5532 return -EMSGSIZE;
f130347c
LR		 5533}
5534
ad30ca2c
AN		 5535static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5536 u32 seq, int flags, struct wiphy *wiphy,
5537 const struct ieee80211_regdomain *regdom)
5538{
5539 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5540 NL80211_CMD_GET_REG);
5541
5542 if (!hdr)
5543 return -1;
5544
5545 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5546
5547 if (nl80211_put_regdom(regdom, msg))
5548 goto nla_put_failure;
5549
5550 if (!wiphy && reg_last_request_cell_base() &&
5551 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5552 NL80211_USER_REG_HINT_CELL_BASE))
5553 goto nla_put_failure;
5554
5555 if (wiphy &&
5556 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5557 goto nla_put_failure;
5558
1bdd716c
AN		 5559 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5560 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5561 goto nla_put_failure;
5562
053c095a
JB		 5563 genlmsg_end(msg, hdr);
5564 return 0;
ad30ca2c
AN		 5565
5566nla_put_failure:
5567 genlmsg_cancel(msg, hdr);
5568 return -EMSGSIZE;
5569}
5570
5571static int nl80211_get_reg_dump(struct sk_buff *skb,
5572 struct netlink_callback *cb)
5573{
5574 const struct ieee80211_regdomain *regdom = NULL;
5575 struct cfg80211_registered_device *rdev;
5576 int err, reg_idx, start = cb->args[2];
5577
5578 rtnl_lock();
5579
5580 if (cfg80211_regdomain && start == 0) {
5581 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5582 NLM_F_MULTI, NULL,
5583 rtnl_dereference(cfg80211_regdomain));
5584 if (err < 0)
5585 goto out_err;
5586 }
5587
5588 /* the global regdom is idx 0 */
5589 reg_idx = 1;
5590 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5591 regdom = get_wiphy_regdom(&rdev->wiphy);
5592 if (!regdom)
5593 continue;
5594
5595 if (++reg_idx <= start)
5596 continue;
5597
5598 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5599 NLM_F_MULTI, &rdev->wiphy, regdom);
5600 if (err < 0) {
5601 reg_idx--;
5602 break;
5603 }
5604 }
5605
5606 cb->args[2] = reg_idx;
5607 err = skb->len;
5608out_err:
5609 rtnl_unlock();
5610 return err;
5611}
5612
b2e1b302
LR		 5613static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5614{
5615 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5616 struct nlattr *nl_reg_rule;
ea372c54
JB		 5617 char *alpha2;
5618 int rem_reg_rules, r;
b2e1b302 5619 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5620 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5621 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5622
5623 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5624 return -EINVAL;
5625
5626 if (!info->attrs[NL80211_ATTR_REG_RULES])
5627 return -EINVAL;
5628
5629 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5630
8b60b078
LR		 5631 if (info->attrs[NL80211_ATTR_DFS_REGION])
5632 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5633
b2e1b302 5634 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5635 rem_reg_rules) {
b2e1b302
LR		 5636 num_rules++;
5637 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5638 return -EINVAL;
b2e1b302
LR		 5639 }
5640
e438768f
LR		 5641 if (!reg_is_valid_request(alpha2))
5642 return -EINVAL;
5643
b2e1b302 5644 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5645 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5646
5647 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5648 if (!rd)
5649 return -ENOMEM;
b2e1b302
LR		 5650
5651 rd->n_reg_rules = num_rules;
5652 rd->alpha2[0] = alpha2[0];
5653 rd->alpha2[1] = alpha2[1];
5654
8b60b078
LR		 5655 /*
5656 * Disable DFS master mode if the DFS region was
5657 * not supported or known on this kernel.
5658 */
5659 if (reg_supported_dfs_region(dfs_region))
5660 rd->dfs_region = dfs_region;
5661
b2e1b302 5662 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5663 rem_reg_rules) {
ae811e21
JB		 5664 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5665 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5666 reg_rule_policy);
5667 if (r)
5668 goto bad_reg;
b2e1b302
LR		 5669 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5670 if (r)
5671 goto bad_reg;
5672
5673 rule_idx++;
5674
d0e18f83
LR		 5675 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5676 r = -EINVAL;
b2e1b302 5677 goto bad_reg;
d0e18f83 5678 }
b2e1b302
LR		 5679 }
5680
c37722bd 5681 r = set_regdom(rd, REGD_SOURCE_CRDA);
6913b49a 5682 /* set_regdom took ownership */
1a919318 5683 rd = NULL;
b2e1b302 5684
d2372b31 5685 bad_reg:
b2e1b302 5686 kfree(rd);
d0e18f83 5687 return r;
b2e1b302
LR		 5688}
5689
83f5e2cf
JB		 5690static int validate_scan_freqs(struct nlattr *freqs)
5691{
5692 struct nlattr *attr1, *attr2;
5693 int n_channels = 0, tmp1, tmp2;
5694
5695 nla_for_each_nested(attr1, freqs, tmp1) {
5696 n_channels++;
5697 /*
5698 * Some hardware has a limited channel list for
5699 * scanning, and it is pretty much nonsensical
5700 * to scan for a channel twice, so disallow that
5701 * and don't require drivers to check that the
5702 * channel list they get isn't longer than what
5703 * they can scan, as long as they can scan all
5704 * the channels they registered at once.
5705 */
5706 nla_for_each_nested(attr2, freqs, tmp2)
5707 if (attr1 != attr2 &&
5708 nla_get_u32(attr1) == nla_get_u32(attr2))
5709 return 0;
5710 }
5711
5712 return n_channels;
5713}
5714
ad2b26ab
JB		 5715static int nl80211_parse_random_mac(struct nlattr **attrs,
5716 u8 *mac_addr, u8 *mac_addr_mask)
5717{
5718 int i;
5719
5720 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 5721 eth_zero_addr(mac_addr);
5722 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 5723 mac_addr[0] = 0x2;
5724 mac_addr_mask[0] = 0x3;
5725
5726 return 0;
5727 }
5728
5729 /* need both or none */
5730 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5731 return -EINVAL;
5732
5733 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5734 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5735
5736 /* don't allow or configure an mcast address */
5737 if (!is_multicast_ether_addr(mac_addr_mask) ||
5738 is_multicast_ether_addr(mac_addr))
5739 return -EINVAL;
5740
5741 /*
5742 * allow users to pass a MAC address that has bits set outside
5743 * of the mask, but don't bother drivers with having to deal
5744 * with such bits
5745 */
5746 for (i = 0; i < ETH_ALEN; i++)
5747 mac_addr[i] &= mac_addr_mask[i];
5748
5749 return 0;
5750}
5751
2a519311
JB		 5752static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5753{
4c476991 5754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5755 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5756 struct cfg80211_scan_request *request;
2a519311
JB		 5757 struct nlattr *attr;
5758 struct wiphy *wiphy;
83f5e2cf 5759 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5760 size_t ie_len;
2a519311 5761
f4a11bb0
JB		 5762 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5763 return -EINVAL;
5764
79c97e97 5765 wiphy = &rdev->wiphy;
2a519311 5766
4c476991
JB		 5767 if (!rdev->ops->scan)
5768 return -EOPNOTSUPP;
2a519311 5769
f9d15d16 5770 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5771 err = -EBUSY;
5772 goto unlock;
5773 }
2a519311
JB		 5774
5775 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5776 n_channels = validate_scan_freqs(
5777 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5778 if (!n_channels) {
5779 err = -EINVAL;
5780 goto unlock;
5781 }
2a519311 5782 } else {
bdfbec2d 5783 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5784 }
5785
5786 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5787 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5788 n_ssids++;
5789
f9f47529
JB		 5790 if (n_ssids > wiphy->max_scan_ssids) {
5791 err = -EINVAL;
5792 goto unlock;
5793 }
2a519311 5794
70692ad2
JM		 5795 if (info->attrs[NL80211_ATTR_IE])
5796 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5797 else
5798 ie_len = 0;
5799
f9f47529
JB		 5800 if (ie_len > wiphy->max_scan_ie_len) {
5801 err = -EINVAL;
5802 goto unlock;
5803 }
18a83659 5804
2a519311 5805 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5806 + sizeof(*request->ssids) * n_ssids
5807 + sizeof(*request->channels) * n_channels
70692ad2 5808 + ie_len, GFP_KERNEL);
f9f47529
JB		 5809 if (!request) {
5810 err = -ENOMEM;
5811 goto unlock;
5812 }
2a519311 5813
2a519311 5814 if (n_ssids)
5ba63533 5815 request->ssids = (void *)&request->channels[n_channels];
2a519311 5816 request->n_ssids = n_ssids;
70692ad2 5817 if (ie_len) {
13874e4b 5818 if (n_ssids)
70692ad2
JM		 5819 request->ie = (void *)(request->ssids + n_ssids);
5820 else
5821 request->ie = (void *)(request->channels + n_channels);
5822 }
2a519311 5823
584991dc 5824 i = 0;
2a519311
JB		 5825 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5826 /* user specified, bail out if channel not found */
2a519311 5827 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5828 struct ieee80211_channel *chan;
5829
5830 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5831
5832 if (!chan) {
2a519311
JB		 5833 err = -EINVAL;
5834 goto out_free;
5835 }
584991dc
JB		 5836
5837 /* ignore disabled channels */
5838 if (chan->flags & IEEE80211_CHAN_DISABLED)
5839 continue;
5840
5841 request->channels[i] = chan;
2a519311
JB		 5842 i++;
5843 }
5844 } else {
34850ab2
JB		 5845 enum ieee80211_band band;
5846
2a519311 5847 /* all channels */
2a519311
JB		 5848 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5849 int j;
5850 if (!wiphy->bands[band])
5851 continue;
5852 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5853 struct ieee80211_channel *chan;
5854
5855 chan = &wiphy->bands[band]->channels[j];
5856
5857 if (chan->flags & IEEE80211_CHAN_DISABLED)
5858 continue;
5859
5860 request->channels[i] = chan;
2a519311
JB		 5861 i++;
5862 }
5863 }
5864 }
5865
584991dc
JB		 5866 if (!i) {
5867 err = -EINVAL;
5868 goto out_free;
5869 }
5870
5871 request->n_channels = i;
5872
2a519311 5873 i = 0;
13874e4b 5874 if (n_ssids) {
2a519311 5875 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5876 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5877 err = -EINVAL;
5878 goto out_free;
5879 }
57a27e1d 5880 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5881 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5882 i++;
5883 }
5884 }
5885
70692ad2
JM		 5886 if (info->attrs[NL80211_ATTR_IE]) {
5887 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5888 memcpy((void *)request->ie,
5889 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5890 request->ie_len);
5891 }
5892
34850ab2 5893 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5894 if (wiphy->bands[i])
5895 request->rates[i] =
5896 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5897
5898 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5899 nla_for_each_nested(attr,
5900 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5901 tmp) {
5902 enum ieee80211_band band = nla_type(attr);
5903
84404623 5904 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5905 err = -EINVAL;
5906 goto out_free;
5907 }
1b09cd82
FF		 5908
5909 if (!wiphy->bands[band])
5910 continue;
5911
34850ab2
JB		 5912 err = ieee80211_get_ratemask(wiphy->bands[band],
5913 nla_data(attr),
5914 nla_len(attr),
5915 &request->rates[band]);
5916 if (err)
5917 goto out_free;
5918 }
5919 }
5920
46856bbf 5921 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5922 request->flags = nla_get_u32(
5923 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5924 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5925 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5926 err = -EOPNOTSUPP;
5927 goto out_free;
5928 }
ad2b26ab
JB		 5929
5930 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5931 if (!(wiphy->features &
5932 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5933 err = -EOPNOTSUPP;
5934 goto out_free;
5935 }
5936
5937 if (wdev->current_bss) {
5938 err = -EOPNOTSUPP;
5939 goto out_free;
5940 }
5941
5942 err = nl80211_parse_random_mac(info->attrs,
5943 request->mac_addr,
5944 request->mac_addr_mask);
5945 if (err)
5946 goto out_free;
5947 }
46856bbf 5948 }
ed473771 5949
e9f935e3
RM		 5950 request->no_cck =
5951 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5952
fd014284 5953 request->wdev = wdev;
79c97e97 5954 request->wiphy = &rdev->wiphy;
15d6030b 5955 request->scan_start = jiffies;
2a519311 5956
79c97e97 5957 rdev->scan_req = request;
e35e4d28 5958 err = rdev_scan(rdev, request);
2a519311 5959
463d0183 5960 if (!err) {
fd014284
JB		 5961 nl80211_send_scan_start(rdev, wdev);
5962 if (wdev->netdev)
5963 dev_hold(wdev->netdev);
4c476991 5964 } else {
2a519311 5965 out_free:
79c97e97 5966 rdev->scan_req = NULL;
2a519311
JB		 5967 kfree(request);
5968 }
3b85875a 5969
f9f47529 5970 unlock:
2a519311
JB		 5971 return err;
5972}
5973
256da02d 5974static struct cfg80211_sched_scan_request *
ad2b26ab 5975nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 5976 struct nlattr **attrs)
807f8a8c
LC		 5977{
5978 struct cfg80211_sched_scan_request *request;
807f8a8c 5979 struct nlattr *attr;
a1f1c21c 5980 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5981 u32 interval;
807f8a8c
LC		 5982 enum ieee80211_band band;
5983 size_t ie_len;
a1f1c21c 5984 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5985 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5986
256da02d
LC		 5987 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5988 return ERR_PTR(-EINVAL);
807f8a8c 5989
256da02d
LC		 5990 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5991 return ERR_PTR(-EINVAL);
bbe6ad6d 5992
256da02d 5993 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5994 if (interval == 0)
256da02d 5995 return ERR_PTR(-EINVAL);
807f8a8c 5996
256da02d 5997 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5998 n_channels = validate_scan_freqs(
256da02d 5999 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6000 if (!n_channels)
256da02d 6001 return ERR_PTR(-EINVAL);
807f8a8c 6002 } else {
bdfbec2d 6003 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6004 }
6005
256da02d
LC		 6006 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6007 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6008 tmp)
6009 n_ssids++;
6010
93b6aa69 6011 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6012 return ERR_PTR(-EINVAL);
807f8a8c 6013
ea73cbce
JB		 6014 /*
6015 * First, count the number of 'real' matchsets. Due to an issue with
6016 * the old implementation, matchsets containing only the RSSI attribute
6017 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6018 * RSSI for all matchsets, rather than their own matchset for reporting
6019 * all APs with a strong RSSI. This is needed to be compatible with
6020 * older userspace that treated a matchset with only the RSSI as the
6021 * global RSSI for all other matchsets - if there are other matchsets.
6022 */
256da02d 6023 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6024 nla_for_each_nested(attr,
256da02d 6025 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6026 tmp) {
6027 struct nlattr *rssi;
6028
6029 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6030 nla_data(attr), nla_len(attr),
6031 nl80211_match_policy);
6032 if (err)
256da02d 6033 return ERR_PTR(err);
ea73cbce
JB		 6034 /* add other standalone attributes here */
6035 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6036 n_match_sets++;
6037 continue;
6038 }
6039 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6040 if (rssi)
6041 default_match_rssi = nla_get_s32(rssi);
6042 }
6043 }
6044
6045 /* However, if there's no other matchset, add the RSSI one */
6046 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6047 n_match_sets = 1;
a1f1c21c
LC		 6048
6049 if (n_match_sets > wiphy->max_match_sets)
256da02d 6050 return ERR_PTR(-EINVAL);
a1f1c21c 6051
256da02d
LC		 6052 if (attrs[NL80211_ATTR_IE])
6053 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6054 else
6055 ie_len = 0;
6056
5a865bad 6057 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6058 return ERR_PTR(-EINVAL);
c10841ca 6059
807f8a8c 6060 request = kzalloc(sizeof(*request)
a2cd43c5 6061 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6062 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 6063 + sizeof(*request->channels) * n_channels
807f8a8c 6064 + ie_len, GFP_KERNEL);
256da02d
LC		 6065 if (!request)
6066 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6067
6068 if (n_ssids)
6069 request->ssids = (void *)&request->channels[n_channels];
6070 request->n_ssids = n_ssids;
6071 if (ie_len) {
13874e4b 6072 if (n_ssids)
807f8a8c
LC		 6073 request->ie = (void *)(request->ssids + n_ssids);
6074 else
6075 request->ie = (void *)(request->channels + n_channels);
6076 }
6077
a1f1c21c
LC		 6078 if (n_match_sets) {
6079 if (request->ie)
6080 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6081 else if (n_ssids)
a1f1c21c
LC		 6082 request->match_sets =
6083 (void *)(request->ssids + n_ssids);
6084 else
6085 request->match_sets =
6086 (void *)(request->channels + n_channels);
6087 }
6088 request->n_match_sets = n_match_sets;
6089
807f8a8c 6090 i = 0;
256da02d 6091 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6092 /* user specified, bail out if channel not found */
6093 nla_for_each_nested(attr,
256da02d 6094 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6095 tmp) {
6096 struct ieee80211_channel *chan;
6097
6098 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6099
6100 if (!chan) {
6101 err = -EINVAL;
6102 goto out_free;
6103 }
6104
6105 /* ignore disabled channels */
6106 if (chan->flags & IEEE80211_CHAN_DISABLED)
6107 continue;
6108
6109 request->channels[i] = chan;
6110 i++;
6111 }
6112 } else {
6113 /* all channels */
6114 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6115 int j;
6116 if (!wiphy->bands[band])
6117 continue;
6118 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6119 struct ieee80211_channel *chan;
6120
6121 chan = &wiphy->bands[band]->channels[j];
6122
6123 if (chan->flags & IEEE80211_CHAN_DISABLED)
6124 continue;
6125
6126 request->channels[i] = chan;
6127 i++;
6128 }
6129 }
6130 }
6131
6132 if (!i) {
6133 err = -EINVAL;
6134 goto out_free;
6135 }
6136
6137 request->n_channels = i;
6138
6139 i = 0;
13874e4b 6140 if (n_ssids) {
256da02d 6141 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6142 tmp) {
57a27e1d 6143 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6144 err = -EINVAL;
6145 goto out_free;
6146 }
57a27e1d 6147 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6148 memcpy(request->ssids[i].ssid, nla_data(attr),
6149 nla_len(attr));
807f8a8c
LC		 6150 i++;
6151 }
6152 }
6153
a1f1c21c 6154 i = 0;
256da02d 6155 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6156 nla_for_each_nested(attr,
256da02d 6157 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6158 tmp) {
88e920b4 6159 struct nlattr *ssid, *rssi;
a1f1c21c 6160
ae811e21
JB		 6161 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6162 nla_data(attr), nla_len(attr),
6163 nl80211_match_policy);
6164 if (err)
6165 goto out_free;
4a4ab0d7 6166 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6167 if (ssid) {
ea73cbce
JB		 6168 if (WARN_ON(i >= n_match_sets)) {
6169 /* this indicates a programming error,
6170 * the loop above should have verified
6171 * things properly
6172 */
6173 err = -EINVAL;
6174 goto out_free;
6175 }
6176
a1f1c21c
LC		 6177 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6178 err = -EINVAL;
6179 goto out_free;
6180 }
6181 memcpy(request->match_sets[i].ssid.ssid,
6182 nla_data(ssid), nla_len(ssid));
6183 request->match_sets[i].ssid.ssid_len =
6184 nla_len(ssid);
ea73cbce
JB		 6185 /* special attribute - old implemenation w/a */
6186 request->match_sets[i].rssi_thold =
6187 default_match_rssi;
6188 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6189 if (rssi)
6190 request->match_sets[i].rssi_thold =
6191 nla_get_s32(rssi);
a1f1c21c
LC		 6192 }
6193 i++;
6194 }
ea73cbce
JB		 6195
6196 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6197 if (i == 0 && n_match_sets)
ea73cbce
JB		 6198 request->match_sets[0].rssi_thold = default_match_rssi;
6199
6200 request->min_rssi_thold = INT_MAX;
6201 for (i = 0; i < n_match_sets; i++)
6202 request->min_rssi_thold =
6203 min(request->match_sets[i].rssi_thold,
6204 request->min_rssi_thold);
6205 } else {
6206 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6207 }
6208
9900e484
JB		 6209 if (ie_len) {
6210 request->ie_len = ie_len;
807f8a8c 6211 memcpy((void *)request->ie,
256da02d 6212 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6213 request->ie_len);
6214 }
6215
256da02d 6216 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6217 request->flags = nla_get_u32(
256da02d 6218 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6219 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6220 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6221 err = -EOPNOTSUPP;
6222 goto out_free;
6223 }
ad2b26ab
JB		 6224
6225 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6226 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6227
6228 if (!wdev) /* must be net-detect */
6229 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6230
6231 if (!(wiphy->features & flg)) {
6232 err = -EOPNOTSUPP;
6233 goto out_free;
6234 }
6235
6236 if (wdev && wdev->current_bss) {
6237 err = -EOPNOTSUPP;
6238 goto out_free;
6239 }
6240
6241 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6242 request->mac_addr_mask);
6243 if (err)
6244 goto out_free;
6245 }
46856bbf 6246 }
ed473771 6247
9c748934
LC		 6248 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6249 request->delay =
6250 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6251
bbe6ad6d 6252 request->interval = interval;
15d6030b 6253 request->scan_start = jiffies;
807f8a8c 6254
256da02d 6255 return request;
807f8a8c
LC		 6256
6257out_free:
6258 kfree(request);
256da02d
LC		 6259 return ERR_PTR(err);
6260}
6261
6262static int nl80211_start_sched_scan(struct sk_buff *skb,
6263 struct genl_info *info)
6264{
6265 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6266 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6267 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6268 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6269 int err;
6270
6271 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6272 !rdev->ops->sched_scan_start)
6273 return -EOPNOTSUPP;
6274
6275 if (rdev->sched_scan_req)
6276 return -EINPROGRESS;
6277
31a60ed1
JR		 6278 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6279 info->attrs);
6280
6281 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6282 if (err)
6283 goto out_err;
6284
31a60ed1 6285 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6286 if (err)
6287 goto out_free;
6288
31a60ed1
JR		 6289 sched_scan_req->dev = dev;
6290 sched_scan_req->wiphy = &rdev->wiphy;
6291
93a1e86c
JR		 6292 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6293 sched_scan_req->owner_nlportid = info->snd_portid;
6294
31a60ed1 6295 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6296
6297 nl80211_send_sched_scan(rdev, dev,
6298 NL80211_CMD_START_SCHED_SCAN);
6299 return 0;
6300
6301out_free:
31a60ed1 6302 kfree(sched_scan_req);
256da02d 6303out_err:
807f8a8c
LC		 6304 return err;
6305}
6306
6307static int nl80211_stop_sched_scan(struct sk_buff *skb,
6308 struct genl_info *info)
6309{
6310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6311
6312 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6313 !rdev->ops->sched_scan_stop)
6314 return -EOPNOTSUPP;
6315
5fe231e8 6316 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6317}
6318
04f39047
SW		 6319static int nl80211_start_radar_detection(struct sk_buff *skb,
6320 struct genl_info *info)
6321{
6322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6323 struct net_device *dev = info->user_ptr[1];
6324 struct wireless_dev *wdev = dev->ieee80211_ptr;
6325 struct cfg80211_chan_def chandef;
55f7435c 6326 enum nl80211_dfs_regions dfs_region;
31559f35 6327 unsigned int cac_time_ms;
04f39047
SW		 6328 int err;
6329
55f7435c
LR		 6330 dfs_region = reg_get_dfs_region(wdev->wiphy);
6331 if (dfs_region == NL80211_DFS_UNSET)
6332 return -EINVAL;
6333
04f39047
SW		 6334 err = nl80211_parse_chandef(rdev, info, &chandef);
6335 if (err)
6336 return err;
6337
ff311bc1
SW		 6338 if (netif_carrier_ok(dev))
6339 return -EBUSY;
6340
04f39047
SW		 6341 if (wdev->cac_started)
6342 return -EBUSY;
6343
2beb6dab 6344 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6345 wdev->iftype);
04f39047
SW		 6346 if (err < 0)
6347 return err;
6348
6349 if (err == 0)
6350 return -EINVAL;
6351
fe7c3a1f 6352 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6353 return -EINVAL;
6354
6355 if (!rdev->ops->start_radar_detection)
6356 return -EOPNOTSUPP;
6357
31559f35
JD		 6358 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6359 if (WARN_ON(!cac_time_ms))
6360 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6361
6362 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6363 cac_time_ms);
04f39047 6364 if (!err) {
9e0e2961 6365 wdev->chandef = chandef;
04f39047
SW		 6366 wdev->cac_started = true;
6367 wdev->cac_start_time = jiffies;
31559f35 6368 wdev->cac_time_ms = cac_time_ms;
04f39047 6369 }
04f39047
SW		 6370 return err;
6371}
6372
16ef1fe2
SW		 6373static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6374{
6375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6376 struct net_device *dev = info->user_ptr[1];
6377 struct wireless_dev *wdev = dev->ieee80211_ptr;
6378 struct cfg80211_csa_settings params;
6379 /* csa_attrs is defined static to avoid waste of stack size - this
6380 * function is called under RTNL lock, so this should not be a problem.
6381 */
6382 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6383 int err;
ee4bc9e7 6384 bool need_new_beacon = false;
9a774c78 6385 int len, i;
252e07ca 6386 u32 cs_count;
16ef1fe2
SW		 6387
6388 if (!rdev->ops->channel_switch ||
6389 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6390 return -EOPNOTSUPP;
6391
ee4bc9e7
SW		 6392 switch (dev->ieee80211_ptr->iftype) {
6393 case NL80211_IFTYPE_AP:
6394 case NL80211_IFTYPE_P2P_GO:
6395 need_new_beacon = true;
6396
6397 /* useless if AP is not running */
6398 if (!wdev->beacon_interval)
1ff79dfa 6399 return -ENOTCONN;
ee4bc9e7
SW		 6400 break;
6401 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6402 if (!wdev->ssid_len)
6403 return -ENOTCONN;
6404 break;
c6da674a 6405 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6406 if (!wdev->mesh_id_len)
6407 return -ENOTCONN;
ee4bc9e7
SW		 6408 break;
6409 default:
16ef1fe2 6410 return -EOPNOTSUPP;
ee4bc9e7 6411 }
16ef1fe2
SW		 6412
6413 memset(&params, 0, sizeof(params));
6414
6415 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6416 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6417 return -EINVAL;
6418
6419 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6420 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6421 return -EINVAL;
6422
252e07ca
LC		 6423 /* Even though the attribute is u32, the specification says
6424 * u8, so let's make sure we don't overflow.
6425 */
6426 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6427 if (cs_count > 255)
6428 return -EINVAL;
6429
6430 params.count = cs_count;
16ef1fe2 6431
ee4bc9e7
SW		 6432 if (!need_new_beacon)
6433 goto skip_beacons;
6434
16ef1fe2
SW		 6435 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6436 if (err)
6437 return err;
6438
6439 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6440 info->attrs[NL80211_ATTR_CSA_IES],
6441 nl80211_policy);
6442 if (err)
6443 return err;
6444
6445 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6446 if (err)
6447 return err;
6448
6449 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6450 return -EINVAL;
6451
9a774c78
AO		 6452 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6453 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6454 return -EINVAL;
6455
9a774c78
AO		 6456 params.n_counter_offsets_beacon = len / sizeof(u16);
6457 if (rdev->wiphy.max_num_csa_counters &&
6458 (params.n_counter_offsets_beacon >
6459 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6460 return -EINVAL;
6461
9a774c78
AO		 6462 params.counter_offsets_beacon =
6463 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6464
6465 /* sanity checks - counters should fit and be the same */
6466 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6467 u16 offset = params.counter_offsets_beacon[i];
6468
6469 if (offset >= params.beacon_csa.tail_len)
6470 return -EINVAL;
6471
6472 if (params.beacon_csa.tail[offset] != params.count)
6473 return -EINVAL;
6474 }
6475
16ef1fe2 6476 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6477 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6478 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6479 return -EINVAL;
6480
9a774c78
AO		 6481 params.n_counter_offsets_presp = len / sizeof(u16);
6482 if (rdev->wiphy.max_num_csa_counters &&
6483 (params.n_counter_offsets_beacon >
6484 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6485 return -EINVAL;
9a774c78
AO		 6486
6487 params.counter_offsets_presp =
6488 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6489
6490 /* sanity checks - counters should fit and be the same */
6491 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6492 u16 offset = params.counter_offsets_presp[i];
6493
6494 if (offset >= params.beacon_csa.probe_resp_len)
6495 return -EINVAL;
6496
6497 if (params.beacon_csa.probe_resp[offset] !=
6498 params.count)
6499 return -EINVAL;
6500 }
16ef1fe2
SW		 6501 }
6502
ee4bc9e7 6503skip_beacons:
16ef1fe2
SW		 6504 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6505 if (err)
6506 return err;
6507
923b352f
AN		 6508 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
6509 wdev->iftype))
16ef1fe2
SW		 6510 return -EINVAL;
6511
2beb6dab
LC		 6512 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6513 &params.chandef,
6514 wdev->iftype);
6515 if (err < 0)
6516 return err;
6517
dcc6c2f5 6518 if (err > 0)
2beb6dab 6519 params.radar_required = true;
16ef1fe2 6520
16ef1fe2
SW		 6521 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6522 params.block_tx = true;
6523
c56589ed
SW		 6524 wdev_lock(wdev);
6525 err = rdev_channel_switch(rdev, dev, &params);
6526 wdev_unlock(wdev);
6527
6528 return err;
16ef1fe2
SW		 6529}
6530
9720bb3a
JB		 6531static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6532 u32 seq, int flags,
2a519311 6533 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6534 struct wireless_dev *wdev,
6535 struct cfg80211_internal_bss *intbss)
2a519311 6536{
48ab905d 6537 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6538 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6539 void *hdr;
6540 struct nlattr *bss;
48ab905d
JB		 6541
6542 ASSERT_WDEV_LOCK(wdev);
2a519311 6543
15e47304 6544 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6545 NL80211_CMD_NEW_SCAN_RESULTS);
6546 if (!hdr)
6547 return -1;
6548
9720bb3a
JB		 6549 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6550
97990a06
JB		 6551 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6552 goto nla_put_failure;
6553 if (wdev->netdev &&
9360ffd1
DM		 6554 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6555 goto nla_put_failure;
97990a06
JB		 6556 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6557 goto nla_put_failure;
2a519311
JB		 6558
6559 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6560 if (!bss)
6561 goto nla_put_failure;
9360ffd1 6562 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6563 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6564 goto nla_put_failure;
9caf0364
JB		 6565
6566 rcu_read_lock();
0e227084
JB		 6567 /* indicate whether we have probe response data or not */
6568 if (rcu_access_pointer(res->proberesp_ies) &&
6569 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6570 goto fail_unlock_rcu;
6571
6572 /* this pointer prefers to be pointed to probe response data
6573 * but is always valid
6574 */
9caf0364 6575 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6576 if (ies) {
6577 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6578 goto fail_unlock_rcu;
8cef2c9d
JB		 6579 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6580 ies->len, ies->data))
6581 goto fail_unlock_rcu;
9caf0364 6582 }
0e227084
JB		 6583
6584 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6585 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6586 if (ies && ies->from_beacon) {
6587 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6588 goto fail_unlock_rcu;
6589 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6590 ies->len, ies->data))
6591 goto fail_unlock_rcu;
9caf0364
JB		 6592 }
6593 rcu_read_unlock();
6594
9360ffd1
DM		 6595 if (res->beacon_interval &&
6596 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6597 goto nla_put_failure;
6598 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6599 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6600 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6601 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6602 jiffies_to_msecs(jiffies - intbss->ts)))
6603 goto nla_put_failure;
2a519311 6604
77965c97 6605 switch (rdev->wiphy.signal_type) {
2a519311 6606 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6607 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6608 goto nla_put_failure;
2a519311
JB		 6609 break;
6610 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6611 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6612 goto nla_put_failure;
2a519311
JB		 6613 break;
6614 default:
6615 break;
6616 }
6617
48ab905d 6618 switch (wdev->iftype) {
074ac8df 6619 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6620 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6621 if (intbss == wdev->current_bss &&
6622 nla_put_u32(msg, NL80211_BSS_STATUS,
6623 NL80211_BSS_STATUS_ASSOCIATED))
6624 goto nla_put_failure;
48ab905d
JB		 6625 break;
6626 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6627 if (intbss == wdev->current_bss &&
6628 nla_put_u32(msg, NL80211_BSS_STATUS,
6629 NL80211_BSS_STATUS_IBSS_JOINED))
6630 goto nla_put_failure;
48ab905d
JB		 6631 break;
6632 default:
6633 break;
6634 }
6635
2a519311
JB		 6636 nla_nest_end(msg, bss);
6637
053c095a
JB		 6638 genlmsg_end(msg, hdr);
6639 return 0;
2a519311 6640
8cef2c9d
JB		 6641 fail_unlock_rcu:
6642 rcu_read_unlock();
2a519311
JB		 6643 nla_put_failure:
6644 genlmsg_cancel(msg, hdr);
6645 return -EMSGSIZE;
6646}
6647
97990a06 6648static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6649{
48ab905d 6650 struct cfg80211_registered_device *rdev;
2a519311 6651 struct cfg80211_internal_bss *scan;
48ab905d 6652 struct wireless_dev *wdev;
97990a06 6653 int start = cb->args[2], idx = 0;
2a519311
JB		 6654 int err;
6655
97990a06 6656 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6657 if (err)
6658 return err;
2a519311 6659
48ab905d
JB		 6660 wdev_lock(wdev);
6661 spin_lock_bh(&rdev->bss_lock);
6662 cfg80211_bss_expire(rdev);
6663
9720bb3a
JB		 6664 cb->seq = rdev->bss_generation;
6665
48ab905d 6666 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6667 if (++idx <= start)
6668 continue;
9720bb3a 6669 if (nl80211_send_bss(skb, cb,
2a519311 6670 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6671 rdev, wdev, scan) < 0) {
2a519311 6672 idx--;
67748893 6673 break;
2a519311
JB		 6674 }
6675 }
6676
48ab905d
JB		 6677 spin_unlock_bh(&rdev->bss_lock);
6678 wdev_unlock(wdev);
2a519311 6679
97990a06
JB		 6680 cb->args[2] = idx;
6681 nl80211_finish_wdev_dump(rdev);
2a519311 6682
67748893 6683 return skb->len;
2a519311
JB		 6684}
6685
15e47304 6686static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 6687 int flags, struct net_device *dev,
6688 bool allow_radio_stats,
6689 struct survey_info *survey)
61fa713c
HS		 6690{
6691 void *hdr;
6692 struct nlattr *infoattr;
6693
11f78ac3
JB		 6694 /* skip radio stats if userspace didn't request them */
6695 if (!survey->channel && !allow_radio_stats)
6696 return 0;
6697
15e47304 6698 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6699 NL80211_CMD_NEW_SURVEY_RESULTS);
6700 if (!hdr)
6701 return -ENOMEM;
6702
9360ffd1
DM		 6703 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6704 goto nla_put_failure;
61fa713c
HS		 6705
6706 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6707 if (!infoattr)
6708 goto nla_put_failure;
6709
11f78ac3
JB		 6710 if (survey->channel &&
6711 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 6712 survey->channel->center_freq))
6713 goto nla_put_failure;
6714
6715 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6716 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6717 goto nla_put_failure;
6718 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6719 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6720 goto nla_put_failure;
4ed20beb
JB		 6721 if ((survey->filled & SURVEY_INFO_TIME) &&
6722 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6723 survey->time))
9360ffd1 6724 goto nla_put_failure;
4ed20beb
JB		 6725 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6726 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6727 survey->time_busy))
9360ffd1 6728 goto nla_put_failure;
4ed20beb
JB		 6729 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6730 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6731 survey->time_ext_busy))
9360ffd1 6732 goto nla_put_failure;
4ed20beb
JB		 6733 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6734 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6735 survey->time_rx))
9360ffd1 6736 goto nla_put_failure;
4ed20beb
JB		 6737 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6738 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6739 survey->time_tx))
9360ffd1 6740 goto nla_put_failure;
052536ab
JB		 6741 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6742 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6743 survey->time_scan))
6744 goto nla_put_failure;
61fa713c
HS		 6745
6746 nla_nest_end(msg, infoattr);
6747
053c095a
JB		 6748 genlmsg_end(msg, hdr);
6749 return 0;
61fa713c
HS		 6750
6751 nla_put_failure:
6752 genlmsg_cancel(msg, hdr);
6753 return -EMSGSIZE;
6754}
6755
11f78ac3 6756static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 6757{
6758 struct survey_info survey;
1b8ec87a 6759 struct cfg80211_registered_device *rdev;
97990a06
JB		 6760 struct wireless_dev *wdev;
6761 int survey_idx = cb->args[2];
61fa713c 6762 int res;
11f78ac3 6763 bool radio_stats;
61fa713c 6764
1b8ec87a 6765 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6766 if (res)
6767 return res;
61fa713c 6768
11f78ac3
JB		 6769 /* prepare_wdev_dump parsed the attributes */
6770 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6771
97990a06
JB		 6772 if (!wdev->netdev) {
6773 res = -EINVAL;
6774 goto out_err;
6775 }
6776
1b8ec87a 6777 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6778 res = -EOPNOTSUPP;
6779 goto out_err;
6780 }
6781
6782 while (1) {
1b8ec87a 6783 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6784 if (res == -ENOENT)
6785 break;
6786 if (res)
6787 goto out_err;
6788
11f78ac3
JB		 6789 /* don't send disabled channels, but do send non-channel data */
6790 if (survey.channel &&
6791 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6792 survey_idx++;
6793 continue;
6794 }
6795
61fa713c 6796 if (nl80211_send_survey(skb,
15e47304 6797 NETLINK_CB(cb->skb).portid,
61fa713c 6798 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 6799 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 6800 goto out;
6801 survey_idx++;
6802 }
6803
6804 out:
97990a06 6805 cb->args[2] = survey_idx;
61fa713c
HS		 6806 res = skb->len;
6807 out_err:
1b8ec87a 6808 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6809 return res;
6810}
6811
b23aa676
SO		 6812static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6813{
6814 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6815 NL80211_WPA_VERSION_2));
6816}
6817
636a5d36
JM		 6818static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6819{
4c476991
JB		 6820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6821 struct net_device *dev = info->user_ptr[1];
19957bb3 6822 struct ieee80211_channel *chan;
e39e5b5e
JM		 6823 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6824 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6825 enum nl80211_auth_type auth_type;
fffd0934 6826 struct key_parse key;
d5cdfacb 6827 bool local_state_change;
636a5d36 6828
f4a11bb0
JB		 6829 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6830 return -EINVAL;
6831
6832 if (!info->attrs[NL80211_ATTR_MAC])
6833 return -EINVAL;
6834
1778092e
JM		 6835 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6836 return -EINVAL;
6837
19957bb3
JB		 6838 if (!info->attrs[NL80211_ATTR_SSID])
6839 return -EINVAL;
6840
6841 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6842 return -EINVAL;
6843
fffd0934
JB		 6844 err = nl80211_parse_key(info, &key);
6845 if (err)
6846 return err;
6847
6848 if (key.idx >= 0) {
e31b8213
JB		 6849 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6850 return -EINVAL;
fffd0934
JB		 6851 if (!key.p.key || !key.p.key_len)
6852 return -EINVAL;
6853 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6854 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6855 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6856 key.p.key_len != WLAN_KEY_LEN_WEP104))
6857 return -EINVAL;
6858 if (key.idx > 4)
6859 return -EINVAL;
6860 } else {
6861 key.p.key_len = 0;
6862 key.p.key = NULL;
6863 }
6864
afea0b7a
JB		 6865 if (key.idx >= 0) {
6866 int i;
6867 bool ok = false;
6868 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6869 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6870 ok = true;
6871 break;
6872 }
6873 }
4c476991
JB		 6874 if (!ok)
6875 return -EINVAL;
afea0b7a
JB		 6876 }
6877
4c476991
JB		 6878 if (!rdev->ops->auth)
6879 return -EOPNOTSUPP;
636a5d36 6880
074ac8df 6881 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6882 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6883 return -EOPNOTSUPP;
eec60b03 6884
19957bb3 6885 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6886 chan = nl80211_get_valid_chan(&rdev->wiphy,
6887 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6888 if (!chan)
4c476991 6889 return -EINVAL;
636a5d36 6890
19957bb3
JB		 6891 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6892 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6893
6894 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6895 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6896 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6897 }
6898
19957bb3 6899 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6900 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6901 return -EINVAL;
636a5d36 6902
e39e5b5e
JM		 6903 if (auth_type == NL80211_AUTHTYPE_SAE &&
6904 !info->attrs[NL80211_ATTR_SAE_DATA])
6905 return -EINVAL;
6906
6907 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6908 if (auth_type != NL80211_AUTHTYPE_SAE)
6909 return -EINVAL;
6910 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6911 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6912 /* need to include at least Auth Transaction and Status Code */
6913 if (sae_data_len < 4)
6914 return -EINVAL;
6915 }
6916
d5cdfacb
JM		 6917 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6918
95de817b
JB		 6919 /*
6920 * Since we no longer track auth state, ignore
6921 * requests to only change local state.
6922 */
6923 if (local_state_change)
6924 return 0;
6925
91bf9b26
JB		 6926 wdev_lock(dev->ieee80211_ptr);
6927 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6928 ssid, ssid_len, ie, ie_len,
6929 key.p.key, key.p.key_len, key.idx,
6930 sae_data, sae_data_len);
6931 wdev_unlock(dev->ieee80211_ptr);
6932 return err;
636a5d36
JM		 6933}
6934
c0692b8f
JB		 6935static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6936 struct genl_info *info,
3dc27d25
JB		 6937 struct cfg80211_crypto_settings *settings,
6938 int cipher_limit)
b23aa676 6939{
c0b2bbd8
JB		 6940 memset(settings, 0, sizeof(*settings));
6941
b23aa676
SO		 6942 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6943
c0692b8f
JB		 6944 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6945 u16 proto;
6946 proto = nla_get_u16(
6947 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6948 settings->control_port_ethertype = cpu_to_be16(proto);
6949 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6950 proto != ETH_P_PAE)
6951 return -EINVAL;
6952 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6953 settings->control_port_no_encrypt = true;
6954 } else
6955 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6956
b23aa676
SO		 6957 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6958 void *data;
6959 int len, i;
6960
6961 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6962 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6963 settings->n_ciphers_pairwise = len / sizeof(u32);
6964
6965 if (len % sizeof(u32))
6966 return -EINVAL;
6967
3dc27d25 6968 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6969 return -EINVAL;
6970
6971 memcpy(settings->ciphers_pairwise, data, len);
6972
6973 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6974 if (!cfg80211_supported_cipher_suite(
6975 &rdev->wiphy,
b23aa676
SO		 6976 settings->ciphers_pairwise[i]))
6977 return -EINVAL;
6978 }
6979
6980 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6981 settings->cipher_group =
6982 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6983 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6984 settings->cipher_group))
b23aa676
SO		 6985 return -EINVAL;
6986 }
6987
6988 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6989 settings->wpa_versions =
6990 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6991 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6992 return -EINVAL;
6993 }
6994
6995 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6996 void *data;
6d30240e 6997 int len;
b23aa676
SO		 6998
6999 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7000 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7001 settings->n_akm_suites = len / sizeof(u32);
7002
7003 if (len % sizeof(u32))
7004 return -EINVAL;
7005
1b9ca027
JM		 7006 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7007 return -EINVAL;
7008
b23aa676 7009 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7010 }
7011
7012 return 0;
7013}
7014
636a5d36
JM		 7015static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7016{
4c476991
JB		 7017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7018 struct net_device *dev = info->user_ptr[1];
f444de05 7019 struct ieee80211_channel *chan;
f62fab73
JB		 7020 struct cfg80211_assoc_request req = {};
7021 const u8 *bssid, *ssid;
7022 int err, ssid_len = 0;
636a5d36 7023
f4a11bb0
JB		 7024 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7025 return -EINVAL;
7026
7027 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7028 !info->attrs[NL80211_ATTR_SSID] ||
7029 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7030 return -EINVAL;
7031
4c476991
JB		 7032 if (!rdev->ops->assoc)
7033 return -EOPNOTSUPP;
636a5d36 7034
074ac8df 7035 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7036 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7037 return -EOPNOTSUPP;
eec60b03 7038
19957bb3 7039 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7040
664834de
JM		 7041 chan = nl80211_get_valid_chan(&rdev->wiphy,
7042 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7043 if (!chan)
4c476991 7044 return -EINVAL;
636a5d36 7045
19957bb3
JB		 7046 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7047 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7048
7049 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7050 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7051 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7052 }
7053
dc6382ce 7054 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7055 enum nl80211_mfp mfp =
dc6382ce 7056 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7057 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7058 req.use_mfp = true;
4c476991
JB		 7059 else if (mfp != NL80211_MFP_NO)
7060 return -EINVAL;
dc6382ce
JM		 7061 }
7062
3e5d7649 7063 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7064 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7065
7e7c8926 7066 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7067 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7068
7069 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7070 memcpy(&req.ht_capa_mask,
7071 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7072 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7073
7074 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7075 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7076 return -EINVAL;
f62fab73
JB		 7077 memcpy(&req.ht_capa,
7078 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7079 sizeof(req.ht_capa));
7e7c8926
BG		 7080 }
7081
ee2aca34 7082 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7083 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7084
7085 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7086 memcpy(&req.vht_capa_mask,
7087 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7088 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7089
7090 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7091 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7092 return -EINVAL;
f62fab73
JB		 7093 memcpy(&req.vht_capa,
7094 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7095 sizeof(req.vht_capa));
ee2aca34
JB		 7096 }
7097
bab5ab7d
AK		 7098 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7099 if (!(rdev->wiphy.features &
7100 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7101 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7102 return -EINVAL;
7103 req.flags |= ASSOC_REQ_USE_RRM;
7104 }
7105
f62fab73 7106 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7107 if (!err) {
7108 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7109 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7110 ssid, ssid_len, &req);
91bf9b26
JB		 7111 wdev_unlock(dev->ieee80211_ptr);
7112 }
636a5d36 7113
636a5d36
JM		 7114 return err;
7115}
7116
7117static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7118{
4c476991
JB		 7119 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7120 struct net_device *dev = info->user_ptr[1];
19957bb3 7121 const u8 *ie = NULL, *bssid;
91bf9b26 7122 int ie_len = 0, err;
19957bb3 7123 u16 reason_code;
d5cdfacb 7124 bool local_state_change;
636a5d36 7125
f4a11bb0
JB		 7126 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7127 return -EINVAL;
7128
7129 if (!info->attrs[NL80211_ATTR_MAC])
7130 return -EINVAL;
7131
7132 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7133 return -EINVAL;
7134
4c476991
JB		 7135 if (!rdev->ops->deauth)
7136 return -EOPNOTSUPP;
636a5d36 7137
074ac8df 7138 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7139 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7140 return -EOPNOTSUPP;
eec60b03 7141
19957bb3 7142 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7143
19957bb3
JB		 7144 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7145 if (reason_code == 0) {
f4a11bb0 7146 /* Reason Code 0 is reserved */
4c476991 7147 return -EINVAL;
255e737e 7148 }
636a5d36
JM		 7149
7150 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7151 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7152 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7153 }
7154
d5cdfacb
JM		 7155 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7156
91bf9b26
JB		 7157 wdev_lock(dev->ieee80211_ptr);
7158 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7159 local_state_change);
7160 wdev_unlock(dev->ieee80211_ptr);
7161 return err;
636a5d36
JM		 7162}
7163
7164static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7165{
4c476991
JB		 7166 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7167 struct net_device *dev = info->user_ptr[1];
19957bb3 7168 const u8 *ie = NULL, *bssid;
91bf9b26 7169 int ie_len = 0, err;
19957bb3 7170 u16 reason_code;
d5cdfacb 7171 bool local_state_change;
636a5d36 7172
f4a11bb0
JB		 7173 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7174 return -EINVAL;
7175
7176 if (!info->attrs[NL80211_ATTR_MAC])
7177 return -EINVAL;
7178
7179 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7180 return -EINVAL;
7181
4c476991
JB		 7182 if (!rdev->ops->disassoc)
7183 return -EOPNOTSUPP;
636a5d36 7184
074ac8df 7185 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7186 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7187 return -EOPNOTSUPP;
eec60b03 7188
19957bb3 7189 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7190
19957bb3
JB		 7191 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7192 if (reason_code == 0) {
f4a11bb0 7193 /* Reason Code 0 is reserved */
4c476991 7194 return -EINVAL;
255e737e 7195 }
636a5d36
JM		 7196
7197 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7198 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7199 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7200 }
7201
d5cdfacb
JM		 7202 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7203
91bf9b26
JB		 7204 wdev_lock(dev->ieee80211_ptr);
7205 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7206 local_state_change);
7207 wdev_unlock(dev->ieee80211_ptr);
7208 return err;
636a5d36
JM		 7209}
7210
dd5b4cc7
FF		 7211static bool
7212nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7213 int mcast_rate[IEEE80211_NUM_BANDS],
7214 int rateval)
7215{
7216 struct wiphy *wiphy = &rdev->wiphy;
7217 bool found = false;
7218 int band, i;
7219
7220 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7221 struct ieee80211_supported_band *sband;
7222
7223 sband = wiphy->bands[band];
7224 if (!sband)
7225 continue;
7226
7227 for (i = 0; i < sband->n_bitrates; i++) {
7228 if (sband->bitrates[i].bitrate == rateval) {
7229 mcast_rate[band] = i + 1;
7230 found = true;
7231 break;
7232 }
7233 }
7234 }
7235
7236 return found;
7237}
7238
04a773ad
JB		 7239static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7240{
4c476991
JB		 7241 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7242 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7243 struct cfg80211_ibss_params ibss;
7244 struct wiphy *wiphy;
fffd0934 7245 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7246 int err;
7247
8e30bc55
JB		 7248 memset(&ibss, 0, sizeof(ibss));
7249
04a773ad
JB		 7250 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7251 return -EINVAL;
7252
683b6d3b 7253 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7254 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7255 return -EINVAL;
7256
8e30bc55
JB		 7257 ibss.beacon_interval = 100;
7258
7259 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7260 ibss.beacon_interval =
7261 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7262 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7263 return -EINVAL;
7264 }
7265
4c476991
JB		 7266 if (!rdev->ops->join_ibss)
7267 return -EOPNOTSUPP;
04a773ad 7268
4c476991
JB		 7269 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7270 return -EOPNOTSUPP;
04a773ad 7271
79c97e97 7272 wiphy = &rdev->wiphy;
04a773ad 7273
39193498 7274 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7275 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7276
7277 if (!is_valid_ether_addr(ibss.bssid))
7278 return -EINVAL;
7279 }
04a773ad
JB		 7280 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7281 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7282
7283 if (info->attrs[NL80211_ATTR_IE]) {
7284 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7285 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7286 }
7287
683b6d3b
JB		 7288 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7289 if (err)
7290 return err;
04a773ad 7291
174e0cd2
IP		 7292 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7293 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7294 return -EINVAL;
7295
2f301ab2 7296 switch (ibss.chandef.width) {
bf372645
SW		 7297 case NL80211_CHAN_WIDTH_5:
7298 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7299 case NL80211_CHAN_WIDTH_20_NOHT:
7300 break;
7301 case NL80211_CHAN_WIDTH_20:
7302 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7303 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7304 return -EINVAL;
7305 break;
7306 case NL80211_CHAN_WIDTH_80:
7307 case NL80211_CHAN_WIDTH_80P80:
7308 case NL80211_CHAN_WIDTH_160:
7309 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7310 return -EINVAL;
7311 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7312 NL80211_EXT_FEATURE_VHT_IBSS))
7313 return -EINVAL;
7314 break;
2f301ab2 7315 default:
c04d6150 7316 return -EINVAL;
2f301ab2 7317 }
db9c64cf 7318
04a773ad 7319 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7320 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7321
fbd2c8dc
TP		 7322 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7323 u8 *rates =
7324 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7325 int n_rates =
7326 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7327 struct ieee80211_supported_band *sband =
683b6d3b 7328 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7329
34850ab2
JB		 7330 err = ieee80211_get_ratemask(sband, rates, n_rates,
7331 &ibss.basic_rates);
7332 if (err)
7333 return err;
fbd2c8dc 7334 }
dd5b4cc7 7335
803768f5
SW		 7336 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7337 memcpy(&ibss.ht_capa_mask,
7338 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7339 sizeof(ibss.ht_capa_mask));
7340
7341 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7342 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7343 return -EINVAL;
7344 memcpy(&ibss.ht_capa,
7345 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7346 sizeof(ibss.ht_capa));
7347 }
7348
dd5b4cc7
FF		 7349 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7350 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7351 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7352 return -EINVAL;
fbd2c8dc 7353
4c476991 7354 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7355 bool no_ht = false;
7356
4c476991 7357 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7358 info->attrs[NL80211_ATTR_KEYS],
7359 &no_ht);
4c476991
JB		 7360 if (IS_ERR(connkeys))
7361 return PTR_ERR(connkeys);
de7044ee 7362
3d9d1d66
JB		 7363 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7364 no_ht) {
de7044ee
SM		 7365 kfree(connkeys);
7366 return -EINVAL;
7367 }
4c476991 7368 }
04a773ad 7369
267335d6
AQ		 7370 ibss.control_port =
7371 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7372
5336fa88
SW		 7373 ibss.userspace_handles_dfs =
7374 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7375
4c476991 7376 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7377 if (err)
b47f610b 7378 kzfree(connkeys);
04a773ad
JB		 7379 return err;
7380}
7381
7382static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7383{
4c476991
JB		 7384 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7385 struct net_device *dev = info->user_ptr[1];
04a773ad 7386
4c476991
JB		 7387 if (!rdev->ops->leave_ibss)
7388 return -EOPNOTSUPP;
04a773ad 7389
4c476991
JB		 7390 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7391 return -EOPNOTSUPP;
04a773ad 7392
4c476991 7393 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7394}
7395
f4e583c8
AQ		 7396static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7397{
7398 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7399 struct net_device *dev = info->user_ptr[1];
7400 int mcast_rate[IEEE80211_NUM_BANDS];
7401 u32 nla_rate;
7402 int err;
7403
7404 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7405 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7406 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7407 return -EOPNOTSUPP;
7408
7409 if (!rdev->ops->set_mcast_rate)
7410 return -EOPNOTSUPP;
7411
7412 memset(mcast_rate, 0, sizeof(mcast_rate));
7413
7414 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7415 return -EINVAL;
7416
7417 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7418 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7419 return -EINVAL;
7420
7421 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7422
7423 return err;
7424}
7425
ad7e718c
JB		 7426static struct sk_buff *
7427__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7428 struct wireless_dev *wdev, int approxlen,
7429 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7430 enum nl80211_attrs attr,
7431 const struct nl80211_vendor_cmd_info *info,
7432 gfp_t gfp)
ad7e718c
JB		 7433{
7434 struct sk_buff *skb;
7435 void *hdr;
7436 struct nlattr *data;
7437
7438 skb = nlmsg_new(approxlen + 100, gfp);
7439 if (!skb)
7440 return NULL;
7441
7442 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7443 if (!hdr) {
7444 kfree_skb(skb);
7445 return NULL;
7446 }
7447
7448 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7449 goto nla_put_failure;
567ffc35
JB		 7450
7451 if (info) {
7452 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7453 info->vendor_id))
7454 goto nla_put_failure;
7455 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7456 info->subcmd))
7457 goto nla_put_failure;
7458 }
7459
6c09e791
AK		 7460 if (wdev) {
7461 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7462 wdev_id(wdev)))
7463 goto nla_put_failure;
7464 if (wdev->netdev &&
7465 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7466 wdev->netdev->ifindex))
7467 goto nla_put_failure;
7468 }
7469
ad7e718c
JB		 7470 data = nla_nest_start(skb, attr);
7471
7472 ((void **)skb->cb)[0] = rdev;
7473 ((void **)skb->cb)[1] = hdr;
7474 ((void **)skb->cb)[2] = data;
7475
7476 return skb;
7477
7478 nla_put_failure:
7479 kfree_skb(skb);
7480 return NULL;
7481}
f4e583c8 7482
e03ad6ea 7483struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7484 struct wireless_dev *wdev,
e03ad6ea
JB		 7485 enum nl80211_commands cmd,
7486 enum nl80211_attrs attr,
7487 int vendor_event_idx,
7488 int approxlen, gfp_t gfp)
7489{
f26cbf40 7490 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7491 const struct nl80211_vendor_cmd_info *info;
7492
7493 switch (cmd) {
7494 case NL80211_CMD_TESTMODE:
7495 if (WARN_ON(vendor_event_idx != -1))
7496 return NULL;
7497 info = NULL;
7498 break;
7499 case NL80211_CMD_VENDOR:
7500 if (WARN_ON(vendor_event_idx < 0 ||
7501 vendor_event_idx >= wiphy->n_vendor_events))
7502 return NULL;
7503 info = &wiphy->vendor_events[vendor_event_idx];
7504 break;
7505 default:
7506 WARN_ON(1);
7507 return NULL;
7508 }
7509
6c09e791 7510 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 7511 cmd, attr, info, gfp);
7512}
7513EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7514
7515void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7516{
7517 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7518 void *hdr = ((void **)skb->cb)[1];
7519 struct nlattr *data = ((void **)skb->cb)[2];
7520 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7521
bd8c78e7
JB		 7522 /* clear CB data for netlink core to own from now on */
7523 memset(skb->cb, 0, sizeof(skb->cb));
7524
e03ad6ea
JB		 7525 nla_nest_end(skb, data);
7526 genlmsg_end(skb, hdr);
7527
7528 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7529 mcgrp = NL80211_MCGRP_VENDOR;
7530
7531 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7532 mcgrp, gfp);
7533}
7534EXPORT_SYMBOL(__cfg80211_send_event_skb);
7535
aff89a9b 7536#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7537static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7538{
4c476991 7539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7540 struct wireless_dev *wdev =
7541 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7542 int err;
7543
fc73f11f
DS		 7544 if (!rdev->ops->testmode_cmd)
7545 return -EOPNOTSUPP;
7546
7547 if (IS_ERR(wdev)) {
7548 err = PTR_ERR(wdev);
7549 if (err != -EINVAL)
7550 return err;
7551 wdev = NULL;
7552 } else if (wdev->wiphy != &rdev->wiphy) {
7553 return -EINVAL;
7554 }
7555
aff89a9b
JB		 7556 if (!info->attrs[NL80211_ATTR_TESTDATA])
7557 return -EINVAL;
7558
ad7e718c 7559 rdev->cur_cmd_info = info;
fc73f11f 7560 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7561 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7562 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7563 rdev->cur_cmd_info = NULL;
aff89a9b 7564
aff89a9b
JB		 7565 return err;
7566}
7567
71063f0e
WYG		 7568static int nl80211_testmode_dump(struct sk_buff *skb,
7569 struct netlink_callback *cb)
7570{
00918d33 7571 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7572 int err;
7573 long phy_idx;
7574 void *data = NULL;
7575 int data_len = 0;
7576
5fe231e8
JB		 7577 rtnl_lock();
7578
71063f0e
WYG		 7579 if (cb->args[0]) {
7580 /*
7581 * 0 is a valid index, but not valid for args[0],
7582 * so we need to offset by 1.
7583 */
7584 phy_idx = cb->args[0] - 1;
7585 } else {
7586 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7587 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7588 nl80211_policy);
7589 if (err)
5fe231e8 7590 goto out_err;
00918d33 7591
2bd7e35d
JB		 7592 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7593 nl80211_fam.attrbuf);
7594 if (IS_ERR(rdev)) {
5fe231e8
JB		 7595 err = PTR_ERR(rdev);
7596 goto out_err;
00918d33 7597 }
2bd7e35d
JB		 7598 phy_idx = rdev->wiphy_idx;
7599 rdev = NULL;
2bd7e35d 7600
71063f0e
WYG		 7601 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7602 cb->args[1] =
7603 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7604 }
7605
7606 if (cb->args[1]) {
7607 data = nla_data((void *)cb->args[1]);
7608 data_len = nla_len((void *)cb->args[1]);
7609 }
7610
00918d33
JB		 7611 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7612 if (!rdev) {
5fe231e8
JB		 7613 err = -ENOENT;
7614 goto out_err;
71063f0e 7615 }
71063f0e 7616
00918d33 7617 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7618 err = -EOPNOTSUPP;
7619 goto out_err;
7620 }
7621
7622 while (1) {
15e47304 7623 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7624 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7625 NL80211_CMD_TESTMODE);
7626 struct nlattr *tmdata;
7627
cb35fba3
DC		 7628 if (!hdr)
7629 break;
7630
9360ffd1 7631 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7632 genlmsg_cancel(skb, hdr);
7633 break;
7634 }
7635
7636 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7637 if (!tmdata) {
7638 genlmsg_cancel(skb, hdr);
7639 break;
7640 }
e35e4d28 7641 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7642 nla_nest_end(skb, tmdata);
7643
7644 if (err == -ENOBUFS || err == -ENOENT) {
7645 genlmsg_cancel(skb, hdr);
7646 break;
7647 } else if (err) {
7648 genlmsg_cancel(skb, hdr);
7649 goto out_err;
7650 }
7651
7652 genlmsg_end(skb, hdr);
7653 }
7654
7655 err = skb->len;
7656 /* see above */
7657 cb->args[0] = phy_idx + 1;
7658 out_err:
5fe231e8 7659 rtnl_unlock();
71063f0e
WYG		 7660 return err;
7661}
aff89a9b
JB		 7662#endif
7663
b23aa676
SO		 7664static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7665{
4c476991
JB		 7666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7667 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7668 struct cfg80211_connect_params connect;
7669 struct wiphy *wiphy;
fffd0934 7670 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7671 int err;
7672
7673 memset(&connect, 0, sizeof(connect));
7674
7675 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7676 return -EINVAL;
7677
7678 if (!info->attrs[NL80211_ATTR_SSID] ||
7679 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7680 return -EINVAL;
7681
7682 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7683 connect.auth_type =
7684 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7685 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7686 NL80211_CMD_CONNECT))
b23aa676
SO		 7687 return -EINVAL;
7688 } else
7689 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7690
7691 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7692
c0692b8f 7693 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7694 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7695 if (err)
7696 return err;
b23aa676 7697
074ac8df 7698 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7699 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7700 return -EOPNOTSUPP;
b23aa676 7701
79c97e97 7702 wiphy = &rdev->wiphy;
b23aa676 7703
4486ea98
BS		 7704 connect.bg_scan_period = -1;
7705 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7706 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7707 connect.bg_scan_period =
7708 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7709 }
7710
b23aa676
SO		 7711 if (info->attrs[NL80211_ATTR_MAC])
7712 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7713 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7714 connect.bssid_hint =
7715 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7716 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7717 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7718
7719 if (info->attrs[NL80211_ATTR_IE]) {
7720 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7721 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7722 }
7723
cee00a95
JM		 7724 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7725 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7726 if (connect.mfp != NL80211_MFP_REQUIRED &&
7727 connect.mfp != NL80211_MFP_NO)
7728 return -EINVAL;
7729 } else {
7730 connect.mfp = NL80211_MFP_NO;
7731 }
7732
b23aa676 7733 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7734 connect.channel = nl80211_get_valid_chan(
7735 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7736 if (!connect.channel)
1df4a510
JM		 7737 return -EINVAL;
7738 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7739 connect.channel_hint = nl80211_get_valid_chan(
7740 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7741 if (!connect.channel_hint)
4c476991 7742 return -EINVAL;
b23aa676
SO		 7743 }
7744
fffd0934
JB		 7745 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7746 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7747 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7748 if (IS_ERR(connkeys))
7749 return PTR_ERR(connkeys);
fffd0934
JB		 7750 }
7751
7e7c8926
BG		 7752 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7753 connect.flags |= ASSOC_REQ_DISABLE_HT;
7754
7755 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7756 memcpy(&connect.ht_capa_mask,
7757 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7758 sizeof(connect.ht_capa_mask));
7759
7760 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7761 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7762 kzfree(connkeys);
7e7c8926 7763 return -EINVAL;
b4e4f47e 7764 }
7e7c8926
BG		 7765 memcpy(&connect.ht_capa,
7766 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7767 sizeof(connect.ht_capa));
7768 }
7769
ee2aca34
JB		 7770 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7771 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7772
7773 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7774 memcpy(&connect.vht_capa_mask,
7775 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7776 sizeof(connect.vht_capa_mask));
7777
7778 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7779 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7780 kzfree(connkeys);
ee2aca34
JB		 7781 return -EINVAL;
7782 }
7783 memcpy(&connect.vht_capa,
7784 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7785 sizeof(connect.vht_capa));
7786 }
7787
bab5ab7d
AK		 7788 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7789 if (!(rdev->wiphy.features &
7790 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7791 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7792 return -EINVAL;
7793 connect.flags |= ASSOC_REQ_USE_RRM;
7794 }
7795
83739b03
JB		 7796 wdev_lock(dev->ieee80211_ptr);
7797 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7798 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7799 if (err)
b47f610b 7800 kzfree(connkeys);
b23aa676
SO		 7801 return err;
7802}
7803
7804static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7805{
4c476991
JB		 7806 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7807 struct net_device *dev = info->user_ptr[1];
b23aa676 7808 u16 reason;
83739b03 7809 int ret;
b23aa676
SO		 7810
7811 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7812 reason = WLAN_REASON_DEAUTH_LEAVING;
7813 else
7814 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7815
7816 if (reason == 0)
7817 return -EINVAL;
7818
074ac8df 7819 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7820 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7821 return -EOPNOTSUPP;
b23aa676 7822
83739b03
JB		 7823 wdev_lock(dev->ieee80211_ptr);
7824 ret = cfg80211_disconnect(rdev, dev, reason, true);
7825 wdev_unlock(dev->ieee80211_ptr);
7826 return ret;
b23aa676
SO		 7827}
7828
463d0183
JB		 7829static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7830{
4c476991 7831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7832 struct net *net;
7833 int err;
463d0183 7834
4b681c82
VK		 7835 if (info->attrs[NL80211_ATTR_PID]) {
7836 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7837
7838 net = get_net_ns_by_pid(pid);
7839 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
7840 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 7841
4b681c82
VK		 7842 net = get_net_ns_by_fd(fd);
7843 } else {
7844 return -EINVAL;
7845 }
463d0183 7846
4c476991
JB		 7847 if (IS_ERR(net))
7848 return PTR_ERR(net);
463d0183
JB		 7849
7850 err = 0;
7851
7852 /* check if anything to do */
4c476991
JB		 7853 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7854 err = cfg80211_switch_netns(rdev, net);
463d0183 7855
463d0183 7856 put_net(net);
463d0183
JB		 7857 return err;
7858}
7859
67fbb16b
SO		 7860static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7861{
4c476991 7862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7863 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7864 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7865 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7866 struct cfg80211_pmksa pmksa;
7867
7868 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7869
7870 if (!info->attrs[NL80211_ATTR_MAC])
7871 return -EINVAL;
7872
7873 if (!info->attrs[NL80211_ATTR_PMKID])
7874 return -EINVAL;
7875
67fbb16b
SO		 7876 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7877 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7878
074ac8df 7879 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7880 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7881 return -EOPNOTSUPP;
67fbb16b
SO		 7882
7883 switch (info->genlhdr->cmd) {
7884 case NL80211_CMD_SET_PMKSA:
7885 rdev_ops = rdev->ops->set_pmksa;
7886 break;
7887 case NL80211_CMD_DEL_PMKSA:
7888 rdev_ops = rdev->ops->del_pmksa;
7889 break;
7890 default:
7891 WARN_ON(1);
7892 break;
7893 }
7894
4c476991
JB		 7895 if (!rdev_ops)
7896 return -EOPNOTSUPP;
67fbb16b 7897
4c476991 7898 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7899}
7900
7901static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7902{
4c476991
JB		 7903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7904 struct net_device *dev = info->user_ptr[1];
67fbb16b 7905
074ac8df 7906 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7907 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7908 return -EOPNOTSUPP;
67fbb16b 7909
4c476991
JB		 7910 if (!rdev->ops->flush_pmksa)
7911 return -EOPNOTSUPP;
67fbb16b 7912
e35e4d28 7913 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7914}
7915
109086ce
AN		 7916static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7917{
7918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7919 struct net_device *dev = info->user_ptr[1];
7920 u8 action_code, dialog_token;
df942e7b 7921 u32 peer_capability = 0;
109086ce
AN		 7922 u16 status_code;
7923 u8 *peer;
31fa97c5 7924 bool initiator;
109086ce
AN		 7925
7926 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7927 !rdev->ops->tdls_mgmt)
7928 return -EOPNOTSUPP;
7929
7930 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7931 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7932 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7933 !info->attrs[NL80211_ATTR_IE] ||
7934 !info->attrs[NL80211_ATTR_MAC])
7935 return -EINVAL;
7936
7937 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7938 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7939 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7940 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7941 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7942 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7943 peer_capability =
7944 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7945
e35e4d28 7946 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7947 dialog_token, status_code, peer_capability,
31fa97c5 7948 initiator,
e35e4d28
HG		 7949 nla_data(info->attrs[NL80211_ATTR_IE]),
7950 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7951}
7952
7953static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7954{
7955 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7956 struct net_device *dev = info->user_ptr[1];
7957 enum nl80211_tdls_operation operation;
7958 u8 *peer;
7959
7960 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7961 !rdev->ops->tdls_oper)
7962 return -EOPNOTSUPP;
7963
7964 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7965 !info->attrs[NL80211_ATTR_MAC])
7966 return -EINVAL;
7967
7968 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7969 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7970
e35e4d28 7971 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7972}
7973
9588bbd5
JM		 7974static int nl80211_remain_on_channel(struct sk_buff *skb,
7975 struct genl_info *info)
7976{
4c476991 7977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7978 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7979 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7980 struct sk_buff *msg;
7981 void *hdr;
7982 u64 cookie;
683b6d3b 7983 u32 duration;
9588bbd5
JM		 7984 int err;
7985
7986 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7987 !info->attrs[NL80211_ATTR_DURATION])
7988 return -EINVAL;
7989
7990 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7991
ebf348fc
JB		 7992 if (!rdev->ops->remain_on_channel ||
7993 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7994 return -EOPNOTSUPP;
7995
9588bbd5 7996 /*
ebf348fc
JB		 7997 * We should be on that channel for at least a minimum amount of
7998 * time (10ms) but no longer than the driver supports.
9588bbd5 7999 */
ebf348fc 8000 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8001 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8002 return -EINVAL;
8003
683b6d3b
JB		 8004 err = nl80211_parse_chandef(rdev, info, &chandef);
8005 if (err)
8006 return err;
9588bbd5
JM		 8007
8008 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8009 if (!msg)
8010 return -ENOMEM;
9588bbd5 8011
15e47304 8012 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8013 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8014 if (!hdr) {
8015 err = -ENOBUFS;
9588bbd5
JM		 8016 goto free_msg;
8017 }
8018
683b6d3b
JB		 8019 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8020 duration, &cookie);
9588bbd5
JM		 8021
8022 if (err)
8023 goto free_msg;
8024
9360ffd1
DM		 8025 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8026 goto nla_put_failure;
9588bbd5
JM		 8027
8028 genlmsg_end(msg, hdr);
4c476991
JB		 8029
8030 return genlmsg_reply(msg, info);
9588bbd5
JM		 8031
8032 nla_put_failure:
8033 err = -ENOBUFS;
8034 free_msg:
8035 nlmsg_free(msg);
9588bbd5
JM		 8036 return err;
8037}
8038
8039static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8040 struct genl_info *info)
8041{
4c476991 8042 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8043 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8044 u64 cookie;
9588bbd5
JM		 8045
8046 if (!info->attrs[NL80211_ATTR_COOKIE])
8047 return -EINVAL;
8048
4c476991
JB		 8049 if (!rdev->ops->cancel_remain_on_channel)
8050 return -EOPNOTSUPP;
9588bbd5 8051
9588bbd5
JM		 8052 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8053
e35e4d28 8054 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8055}
8056
13ae75b1
JM		 8057static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8058 u8 *rates, u8 rates_len)
8059{
8060 u8 i;
8061 u32 mask = 0;
8062
8063 for (i = 0; i < rates_len; i++) {
8064 int rate = (rates[i] & 0x7f) * 5;
8065 int ridx;
8066 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8067 struct ieee80211_rate *srate =
8068 &sband->bitrates[ridx];
8069 if (rate == srate->bitrate) {
8070 mask |= 1 << ridx;
8071 break;
8072 }
8073 }
8074 if (ridx == sband->n_bitrates)
8075 return 0; /* rate not found */
8076 }
8077
8078 return mask;
8079}
8080
24db78c0
SW		 8081static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8082 u8 *rates, u8 rates_len,
8083 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8084{
8085 u8 i;
8086
8087 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8088
8089 for (i = 0; i < rates_len; i++) {
8090 int ridx, rbit;
8091
8092 ridx = rates[i] / 8;
8093 rbit = BIT(rates[i] % 8);
8094
8095 /* check validity */
910570b5 8096 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8097 return false;
8098
8099 /* check availability */
8100 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8101 mcs[ridx] |= rbit;
8102 else
8103 return false;
8104 }
8105
8106 return true;
8107}
8108
204e35a9
JD		 8109static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8110{
8111 u16 mcs_mask = 0;
8112
8113 switch (vht_mcs_map) {
8114 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8115 break;
8116 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8117 mcs_mask = 0x00FF;
8118 break;
8119 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8120 mcs_mask = 0x01FF;
8121 break;
8122 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8123 mcs_mask = 0x03FF;
8124 break;
8125 default:
8126 break;
8127 }
8128
8129 return mcs_mask;
8130}
8131
8132static void vht_build_mcs_mask(u16 vht_mcs_map,
8133 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8134{
8135 u8 nss;
8136
8137 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8138 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8139 vht_mcs_map >>= 2;
8140 }
8141}
8142
8143static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8144 struct nl80211_txrate_vht *txrate,
8145 u16 mcs[NL80211_VHT_NSS_MAX])
8146{
8147 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8148 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8149 u8 i;
8150
8151 if (!sband->vht_cap.vht_supported)
8152 return false;
8153
8154 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8155
8156 /* Build vht_mcs_mask from VHT capabilities */
8157 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8158
8159 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8160 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8161 mcs[i] = txrate->mcs[i];
8162 else
8163 return false;
8164 }
8165
8166 return true;
8167}
8168
b54452b0 8169static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8170 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8171 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8172 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8173 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8174 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8175 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8176};
8177
8178static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8179 struct genl_info *info)
8180{
8181 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8183 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8184 int rem, i;
8185 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8186 struct nlattr *tx_rates;
8187 struct ieee80211_supported_band *sband;
204e35a9 8188 u16 vht_tx_mcs_map;
13ae75b1 8189
4c476991
JB		 8190 if (!rdev->ops->set_bitrate_mask)
8191 return -EOPNOTSUPP;
13ae75b1
JM		 8192
8193 memset(&mask, 0, sizeof(mask));
8194 /* Default to all rates enabled */
8195 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8196 sband = rdev->wiphy.bands[i];
7869303b
JD		 8197
8198 if (!sband)
8199 continue;
8200
8201 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8202 memcpy(mask.control[i].ht_mcs,
7869303b 8203 sband->ht_cap.mcs.rx_mask,
d1e33e65 8204 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8205
8206 if (!sband->vht_cap.vht_supported)
8207 continue;
8208
8209 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8210 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8211 }
8212
b9243ab0
JD		 8213 /* if no rates are given set it back to the defaults */
8214 if (!info->attrs[NL80211_ATTR_TX_RATES])
8215 goto out;
8216
13ae75b1
JM		 8217 /*
8218 * The nested attribute uses enum nl80211_band as the index. This maps
8219 * directly to the enum ieee80211_band values used in cfg80211.
8220 */
24db78c0 8221 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8222 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8223 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8224 int err;
8225
4c476991
JB		 8226 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8227 return -EINVAL;
13ae75b1 8228 sband = rdev->wiphy.bands[band];
4c476991
JB		 8229 if (sband == NULL)
8230 return -EINVAL;
ae811e21
JB		 8231 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8232 nla_len(tx_rates), nl80211_txattr_policy);
8233 if (err)
8234 return err;
13ae75b1
JM		 8235 if (tb[NL80211_TXRATE_LEGACY]) {
8236 mask.control[band].legacy = rateset_to_mask(
8237 sband,
8238 nla_data(tb[NL80211_TXRATE_LEGACY]),
8239 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8240 if ((mask.control[band].legacy == 0) &&
8241 nla_len(tb[NL80211_TXRATE_LEGACY]))
8242 return -EINVAL;
24db78c0 8243 }
d1e33e65 8244 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8245 if (!ht_rateset_to_mask(
8246 sband,
d1e33e65
JD		 8247 nla_data(tb[NL80211_TXRATE_HT]),
8248 nla_len(tb[NL80211_TXRATE_HT]),
8249 mask.control[band].ht_mcs))
24db78c0
SW		 8250 return -EINVAL;
8251 }
204e35a9
JD		 8252 if (tb[NL80211_TXRATE_VHT]) {
8253 if (!vht_set_mcs_mask(
8254 sband,
8255 nla_data(tb[NL80211_TXRATE_VHT]),
8256 mask.control[band].vht_mcs))
8257 return -EINVAL;
8258 }
0b9323f6
JD		 8259 if (tb[NL80211_TXRATE_GI]) {
8260 mask.control[band].gi =
8261 nla_get_u8(tb[NL80211_TXRATE_GI]);
8262 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8263 return -EINVAL;
8264 }
24db78c0
SW		 8265
8266 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8267 /* don't allow empty legacy rates if HT or VHT
8268 * are not even supported.
8269 */
8270 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8271 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8272 return -EINVAL;
8273
8274 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8275 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8276 goto out;
8277
8278 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8279 if (mask.control[band].vht_mcs[i])
8280 goto out;
24db78c0
SW		 8281
8282 /* legacy and mcs rates may not be both empty */
204e35a9 8283 return -EINVAL;
13ae75b1
JM		 8284 }
8285 }
8286
b9243ab0 8287out:
e35e4d28 8288 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8289}
8290
2e161f78 8291static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8292{
4c476991 8293 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8294 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8295 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8296
8297 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8298 return -EINVAL;
8299
2e161f78
JB		 8300 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8301 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8302
71bbc994
JB		 8303 switch (wdev->iftype) {
8304 case NL80211_IFTYPE_STATION:
8305 case NL80211_IFTYPE_ADHOC:
8306 case NL80211_IFTYPE_P2P_CLIENT:
8307 case NL80211_IFTYPE_AP:
8308 case NL80211_IFTYPE_AP_VLAN:
8309 case NL80211_IFTYPE_MESH_POINT:
8310 case NL80211_IFTYPE_P2P_GO:
98104fde 8311 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8312 break;
8313 default:
4c476991 8314 return -EOPNOTSUPP;
71bbc994 8315 }
026331c4
JM		 8316
8317 /* not much point in registering if we can't reply */
4c476991
JB		 8318 if (!rdev->ops->mgmt_tx)
8319 return -EOPNOTSUPP;
026331c4 8320
15e47304 8321 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8322 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8323 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8324}
8325
2e161f78 8326static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8327{
4c476991 8328 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8329 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8330 struct cfg80211_chan_def chandef;
026331c4 8331 int err;
d64d373f 8332 void *hdr = NULL;
026331c4 8333 u64 cookie;
e247bd90 8334 struct sk_buff *msg = NULL;
b176e629
AO		 8335 struct cfg80211_mgmt_tx_params params = {
8336 .dont_wait_for_ack =
8337 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8338 };
026331c4 8339
683b6d3b 8340 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8341 return -EINVAL;
8342
4c476991
JB		 8343 if (!rdev->ops->mgmt_tx)
8344 return -EOPNOTSUPP;
026331c4 8345
71bbc994 8346 switch (wdev->iftype) {
ea141b75
AQ		 8347 case NL80211_IFTYPE_P2P_DEVICE:
8348 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8349 return -EINVAL;
71bbc994
JB		 8350 case NL80211_IFTYPE_STATION:
8351 case NL80211_IFTYPE_ADHOC:
8352 case NL80211_IFTYPE_P2P_CLIENT:
8353 case NL80211_IFTYPE_AP:
8354 case NL80211_IFTYPE_AP_VLAN:
8355 case NL80211_IFTYPE_MESH_POINT:
8356 case NL80211_IFTYPE_P2P_GO:
8357 break;
8358 default:
4c476991 8359 return -EOPNOTSUPP;
71bbc994 8360 }
026331c4 8361
f7ca38df 8362 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8363 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8364 return -EINVAL;
b176e629 8365 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8366
8367 /*
8368 * We should wait on the channel for at least a minimum amount
8369 * of time (10ms) but no longer than the driver supports.
8370 */
b176e629
AO		 8371 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8372 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8373 return -EINVAL;
8374
f7ca38df
JB		 8375 }
8376
b176e629 8377 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8378
b176e629 8379 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8380 return -EINVAL;
8381
b176e629 8382 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8383
ea141b75
AQ		 8384 /* get the channel if any has been specified, otherwise pass NULL to
8385 * the driver. The latter will use the current one
8386 */
8387 chandef.chan = NULL;
8388 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8389 err = nl80211_parse_chandef(rdev, info, &chandef);
8390 if (err)
8391 return err;
8392 }
8393
b176e629 8394 if (!chandef.chan && params.offchan)
ea141b75 8395 return -EINVAL;
026331c4 8396
34d22ce2
AO		 8397 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8398 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8399
8400 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8401 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8402 int i;
8403
8404 if (len % sizeof(u16))
8405 return -EINVAL;
8406
8407 params.n_csa_offsets = len / sizeof(u16);
8408 params.csa_offsets =
8409 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8410
8411 /* check that all the offsets fit the frame */
8412 for (i = 0; i < params.n_csa_offsets; i++) {
8413 if (params.csa_offsets[i] >= params.len)
8414 return -EINVAL;
8415 }
8416 }
8417
b176e629 8418 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8419 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8420 if (!msg)
8421 return -ENOMEM;
026331c4 8422
15e47304 8423 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8424 NL80211_CMD_FRAME);
cb35fba3
DC		 8425 if (!hdr) {
8426 err = -ENOBUFS;
e247bd90
JB		 8427 goto free_msg;
8428 }
026331c4 8429 }
e247bd90 8430
b176e629
AO		 8431 params.chan = chandef.chan;
8432 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8433 if (err)
8434 goto free_msg;
8435
e247bd90 8436 if (msg) {
9360ffd1
DM		 8437 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8438 goto nla_put_failure;
026331c4 8439
e247bd90
JB		 8440 genlmsg_end(msg, hdr);
8441 return genlmsg_reply(msg, info);
8442 }
8443
8444 return 0;
026331c4
JM		 8445
8446 nla_put_failure:
8447 err = -ENOBUFS;
8448 free_msg:
8449 nlmsg_free(msg);
026331c4
JM		 8450 return err;
8451}
8452
f7ca38df
JB		 8453static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8454{
8455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8456 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8457 u64 cookie;
8458
8459 if (!info->attrs[NL80211_ATTR_COOKIE])
8460 return -EINVAL;
8461
8462 if (!rdev->ops->mgmt_tx_cancel_wait)
8463 return -EOPNOTSUPP;
8464
71bbc994
JB		 8465 switch (wdev->iftype) {
8466 case NL80211_IFTYPE_STATION:
8467 case NL80211_IFTYPE_ADHOC:
8468 case NL80211_IFTYPE_P2P_CLIENT:
8469 case NL80211_IFTYPE_AP:
8470 case NL80211_IFTYPE_AP_VLAN:
8471 case NL80211_IFTYPE_P2P_GO:
98104fde 8472 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8473 break;
8474 default:
f7ca38df 8475 return -EOPNOTSUPP;
71bbc994 8476 }
f7ca38df
JB		 8477
8478 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8479
e35e4d28 8480 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8481}
8482
ffb9eb3d
KV		 8483static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8484{
4c476991 8485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8486 struct wireless_dev *wdev;
4c476991 8487 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8488 u8 ps_state;
8489 bool state;
8490 int err;
8491
4c476991
JB		 8492 if (!info->attrs[NL80211_ATTR_PS_STATE])
8493 return -EINVAL;
ffb9eb3d
KV		 8494
8495 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8496
4c476991
JB		 8497 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8498 return -EINVAL;
ffb9eb3d
KV		 8499
8500 wdev = dev->ieee80211_ptr;
8501
4c476991
JB		 8502 if (!rdev->ops->set_power_mgmt)
8503 return -EOPNOTSUPP;
ffb9eb3d
KV		 8504
8505 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8506
8507 if (state == wdev->ps)
4c476991 8508 return 0;
ffb9eb3d 8509
e35e4d28 8510 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8511 if (!err)
8512 wdev->ps = state;
ffb9eb3d
KV		 8513 return err;
8514}
8515
8516static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8517{
4c476991 8518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8519 enum nl80211_ps_state ps_state;
8520 struct wireless_dev *wdev;
4c476991 8521 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8522 struct sk_buff *msg;
8523 void *hdr;
8524 int err;
8525
ffb9eb3d
KV		 8526 wdev = dev->ieee80211_ptr;
8527
4c476991
JB		 8528 if (!rdev->ops->set_power_mgmt)
8529 return -EOPNOTSUPP;
ffb9eb3d
KV		 8530
8531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8532 if (!msg)
8533 return -ENOMEM;
ffb9eb3d 8534
15e47304 8535 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8536 NL80211_CMD_GET_POWER_SAVE);
8537 if (!hdr) {
4c476991 8538 err = -ENOBUFS;
ffb9eb3d
KV		 8539 goto free_msg;
8540 }
8541
8542 if (wdev->ps)
8543 ps_state = NL80211_PS_ENABLED;
8544 else
8545 ps_state = NL80211_PS_DISABLED;
8546
9360ffd1
DM		 8547 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8548 goto nla_put_failure;
ffb9eb3d
KV		 8549
8550 genlmsg_end(msg, hdr);
4c476991 8551 return genlmsg_reply(msg, info);
ffb9eb3d 8552
4c476991 8553 nla_put_failure:
ffb9eb3d 8554 err = -ENOBUFS;
4c476991 8555 free_msg:
ffb9eb3d 8556 nlmsg_free(msg);
ffb9eb3d
KV		 8557 return err;
8558}
8559
94e860f1
JB		 8560static const struct nla_policy
8561nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8562 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8563 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8564 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8565 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8566 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8567 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8568};
8569
84f10708 8570static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8571 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8572{
8573 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8574 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8575 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8576
d9d8b019 8577 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8578 return -EINVAL;
8579
84f10708
TP		 8580 if (!rdev->ops->set_cqm_txe_config)
8581 return -EOPNOTSUPP;
8582
8583 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8584 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8585 return -EOPNOTSUPP;
8586
e35e4d28 8587 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8588}
8589
d6dc1a38
JO		 8590static int nl80211_set_cqm_rssi(struct genl_info *info,
8591 s32 threshold, u32 hysteresis)
8592{
4c476991 8593 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8594 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8595 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8596
8597 if (threshold > 0)
8598 return -EINVAL;
8599
1da5fcc8
JB		 8600 /* disabling - hysteresis should also be zero then */
8601 if (threshold == 0)
8602 hysteresis = 0;
d6dc1a38 8603
4c476991
JB		 8604 if (!rdev->ops->set_cqm_rssi_config)
8605 return -EOPNOTSUPP;
d6dc1a38 8606
074ac8df 8607 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8608 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8609 return -EOPNOTSUPP;
d6dc1a38 8610
e35e4d28 8611 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8612}
8613
8614static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8615{
8616 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8617 struct nlattr *cqm;
8618 int err;
8619
8620 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8621 if (!cqm)
8622 return -EINVAL;
d6dc1a38
JO		 8623
8624 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8625 nl80211_attr_cqm_policy);
8626 if (err)
1da5fcc8 8627 return err;
d6dc1a38
JO		 8628
8629 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8630 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8631 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8632 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8633
1da5fcc8
JB		 8634 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8635 }
8636
8637 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8638 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8639 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8640 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8641 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8642 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8643
8644 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8645 }
8646
8647 return -EINVAL;
d6dc1a38
JO		 8648}
8649
6e0bd6c3
RL		 8650static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8651{
8652 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8653 struct net_device *dev = info->user_ptr[1];
8654 struct ocb_setup setup = {};
8655 int err;
8656
8657 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8658 if (err)
8659 return err;
8660
8661 return cfg80211_join_ocb(rdev, dev, &setup);
8662}
8663
8664static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8665{
8666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8667 struct net_device *dev = info->user_ptr[1];
8668
8669 return cfg80211_leave_ocb(rdev, dev);
8670}
8671
29cbe68c
JB		 8672static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8673{
8674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8675 struct net_device *dev = info->user_ptr[1];
8676 struct mesh_config cfg;
c80d545d 8677 struct mesh_setup setup;
29cbe68c
JB		 8678 int err;
8679
8680 /* start with default */
8681 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8682 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8683
24bdd9f4 8684 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8685 /* and parse parameters if given */
24bdd9f4 8686 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8687 if (err)
8688 return err;
8689 }
8690
8691 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8692 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8693 return -EINVAL;
8694
c80d545d
JC		 8695 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8696 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8697
4bb62344
CYY		 8698 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8699 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8700 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8701 return -EINVAL;
8702
9bdbf04d
MP		 8703 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8704 setup.beacon_interval =
8705 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8706 if (setup.beacon_interval < 10 ||
8707 setup.beacon_interval > 10000)
8708 return -EINVAL;
8709 }
8710
8711 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8712 setup.dtim_period =
8713 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8714 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8715 return -EINVAL;
8716 }
8717
c80d545d
JC		 8718 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8719 /* parse additional setup parameters if given */
8720 err = nl80211_parse_mesh_setup(info, &setup);
8721 if (err)
8722 return err;
8723 }
8724
d37bb18a
TP		 8725 if (setup.user_mpm)
8726 cfg.auto_open_plinks = false;
8727
cc1d2806 8728 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8729 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8730 if (err)
8731 return err;
cc1d2806
JB		 8732 } else {
8733 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8734 setup.chandef.chan = NULL;
cc1d2806
JB		 8735 }
8736
ffb3cf30
AN		 8737 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8738 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8739 int n_rates =
8740 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8741 struct ieee80211_supported_band *sband;
8742
8743 if (!setup.chandef.chan)
8744 return -EINVAL;
8745
8746 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8747
8748 err = ieee80211_get_ratemask(sband, rates, n_rates,
8749 &setup.basic_rates);
8750 if (err)
8751 return err;
8752 }
8753
c80d545d 8754 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8755}
8756
8757static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8758{
8759 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8760 struct net_device *dev = info->user_ptr[1];
8761
8762 return cfg80211_leave_mesh(rdev, dev);
8763}
8764
dfb89c56 8765#ifdef CONFIG_PM
bb92d199
AK		 8766static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8767 struct cfg80211_registered_device *rdev)
8768{
6abb9cb9 8769 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8770 struct nlattr *nl_pats, *nl_pat;
8771 int i, pat_len;
8772
6abb9cb9 8773 if (!wowlan->n_patterns)
bb92d199
AK		 8774 return 0;
8775
8776 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8777 if (!nl_pats)
8778 return -ENOBUFS;
8779
6abb9cb9 8780 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8781 nl_pat = nla_nest_start(msg, i + 1);
8782 if (!nl_pat)
8783 return -ENOBUFS;
6abb9cb9 8784 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8785 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8786 wowlan->patterns[i].mask) ||
50ac6607
AK		 8787 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8788 wowlan->patterns[i].pattern) ||
8789 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8790 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8791 return -ENOBUFS;
8792 nla_nest_end(msg, nl_pat);
8793 }
8794 nla_nest_end(msg, nl_pats);
8795
8796 return 0;
8797}
8798
2a0e047e
JB		 8799static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8800 struct cfg80211_wowlan_tcp *tcp)
8801{
8802 struct nlattr *nl_tcp;
8803
8804 if (!tcp)
8805 return 0;
8806
8807 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8808 if (!nl_tcp)
8809 return -ENOBUFS;
8810
930345ea
JB		 8811 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8812 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 8813 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8814 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8815 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8816 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8817 tcp->payload_len, tcp->payload) ||
8818 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8819 tcp->data_interval) ||
8820 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8821 tcp->wake_len, tcp->wake_data) ||
8822 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8823 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8824 return -ENOBUFS;
8825
8826 if (tcp->payload_seq.len &&
8827 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8828 sizeof(tcp->payload_seq), &tcp->payload_seq))
8829 return -ENOBUFS;
8830
8831 if (tcp->payload_tok.len &&
8832 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8833 sizeof(tcp->payload_tok) + tcp->tokens_size,
8834 &tcp->payload_tok))
8835 return -ENOBUFS;
8836
e248ad30
JB		 8837 nla_nest_end(msg, nl_tcp);
8838
2a0e047e
JB		 8839 return 0;
8840}
8841
75453ccb
LC		 8842static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8843 struct cfg80211_sched_scan_request *req)
8844{
8845 struct nlattr *nd, *freqs, *matches, *match;
8846 int i;
8847
8848 if (!req)
8849 return 0;
8850
8851 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
8852 if (!nd)
8853 return -ENOBUFS;
8854
8855 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, req->interval))
8856 return -ENOBUFS;
8857
21fea567
LC		 8858 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
8859 return -ENOBUFS;
8860
75453ccb
LC		 8861 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8862 if (!freqs)
8863 return -ENOBUFS;
8864
8865 for (i = 0; i < req->n_channels; i++)
8866 nla_put_u32(msg, i, req->channels[i]->center_freq);
8867
8868 nla_nest_end(msg, freqs);
8869
8870 if (req->n_match_sets) {
8871 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
8872 for (i = 0; i < req->n_match_sets; i++) {
8873 match = nla_nest_start(msg, i);
8874 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
8875 req->match_sets[i].ssid.ssid_len,
8876 req->match_sets[i].ssid.ssid);
8877 nla_nest_end(msg, match);
8878 }
8879 nla_nest_end(msg, matches);
8880 }
8881
8882 nla_nest_end(msg, nd);
8883
8884 return 0;
8885}
8886
ff1b6e69
JB		 8887static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8888{
8889 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8890 struct sk_buff *msg;
8891 void *hdr;
2a0e047e 8892 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8893
964dc9e2 8894 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8895 return -EOPNOTSUPP;
8896
6abb9cb9 8897 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8898 /* adjust size to have room for all the data */
6abb9cb9
JB		 8899 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8900 rdev->wiphy.wowlan_config->tcp->payload_len +
8901 rdev->wiphy.wowlan_config->tcp->wake_len +
8902 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8903 }
8904
8905 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8906 if (!msg)
8907 return -ENOMEM;
8908
15e47304 8909 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8910 NL80211_CMD_GET_WOWLAN);
8911 if (!hdr)
8912 goto nla_put_failure;
8913
6abb9cb9 8914 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8915 struct nlattr *nl_wowlan;
8916
8917 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8918 if (!nl_wowlan)
8919 goto nla_put_failure;
8920
6abb9cb9 8921 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8922 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8923 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8924 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8925 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8926 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8927 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8928 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8929 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8930 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8931 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8932 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8933 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8934 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8935 goto nla_put_failure;
2a0e047e 8936
bb92d199
AK		 8937 if (nl80211_send_wowlan_patterns(msg, rdev))
8938 goto nla_put_failure;
2a0e047e 8939
6abb9cb9
JB		 8940 if (nl80211_send_wowlan_tcp(msg,
8941 rdev->wiphy.wowlan_config->tcp))
2a0e047e 8942 goto nla_put_failure;
75453ccb
LC		 8943
8944 if (nl80211_send_wowlan_nd(
8945 msg,
8946 rdev->wiphy.wowlan_config->nd_config))
8947 goto nla_put_failure;
2a0e047e 8948
ff1b6e69
JB		 8949 nla_nest_end(msg, nl_wowlan);
8950 }
8951
8952 genlmsg_end(msg, hdr);
8953 return genlmsg_reply(msg, info);
8954
8955nla_put_failure:
8956 nlmsg_free(msg);
8957 return -ENOBUFS;
8958}
8959
2a0e047e
JB		 8960static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8961 struct nlattr *attr,
8962 struct cfg80211_wowlan *trig)
8963{
8964 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8965 struct cfg80211_wowlan_tcp *cfg;
8966 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8967 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8968 u32 size;
8969 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8970 int err, port;
8971
964dc9e2 8972 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8973 return -EINVAL;
8974
8975 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8976 nla_data(attr), nla_len(attr),
8977 nl80211_wowlan_tcp_policy);
8978 if (err)
8979 return err;
8980
8981 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8982 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8983 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8984 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8985 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8986 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8987 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8988 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8989 return -EINVAL;
8990
8991 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8992 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8993 return -EINVAL;
8994
8995 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8996 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8997 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8998 return -EINVAL;
8999
9000 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9001 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9002 return -EINVAL;
9003
9004 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9005 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9006 return -EINVAL;
9007
9008 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9009 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9010
9011 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9012 tokens_size = tokln - sizeof(*tok);
9013
9014 if (!tok->len || tokens_size % tok->len)
9015 return -EINVAL;
964dc9e2 9016 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9017 return -EINVAL;
964dc9e2 9018 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9019 return -EINVAL;
964dc9e2 9020 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9021 return -EINVAL;
964dc9e2 9022 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9023 return -EINVAL;
9024 if (tok->offset + tok->len > data_size)
9025 return -EINVAL;
9026 }
9027
9028 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9029 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9030 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9031 return -EINVAL;
9032 if (seq->len == 0 || seq->len > 4)
9033 return -EINVAL;
9034 if (seq->len + seq->offset > data_size)
9035 return -EINVAL;
9036 }
9037
9038 size = sizeof(*cfg);
9039 size += data_size;
9040 size += wake_size + wake_mask_size;
9041 size += tokens_size;
9042
9043 cfg = kzalloc(size, GFP_KERNEL);
9044 if (!cfg)
9045 return -ENOMEM;
67b61f6c
JB		 9046 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9047 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9048 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9049 ETH_ALEN);
9050 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9051 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9052 else
9053 port = 0;
9054#ifdef CONFIG_INET
9055 /* allocate a socket and port for it and use it */
9056 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9057 IPPROTO_TCP, &cfg->sock, 1);
9058 if (err) {
9059 kfree(cfg);
9060 return err;
9061 }
9062 if (inet_csk_get_port(cfg->sock->sk, port)) {
9063 sock_release(cfg->sock);
9064 kfree(cfg);
9065 return -EADDRINUSE;
9066 }
9067 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9068#else
9069 if (!port) {
9070 kfree(cfg);
9071 return -EINVAL;
9072 }
9073 cfg->src_port = port;
9074#endif
9075
9076 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9077 cfg->payload_len = data_size;
9078 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9079 memcpy((void *)cfg->payload,
9080 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9081 data_size);
9082 if (seq)
9083 cfg->payload_seq = *seq;
9084 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9085 cfg->wake_len = wake_size;
9086 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9087 memcpy((void *)cfg->wake_data,
9088 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9089 wake_size);
9090 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9091 data_size + wake_size;
9092 memcpy((void *)cfg->wake_mask,
9093 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9094 wake_mask_size);
9095 if (tok) {
9096 cfg->tokens_size = tokens_size;
9097 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9098 }
9099
9100 trig->tcp = cfg;
9101
9102 return 0;
9103}
9104
8cd4d456
LC		 9105static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9106 const struct wiphy_wowlan_support *wowlan,
9107 struct nlattr *attr,
9108 struct cfg80211_wowlan *trig)
9109{
9110 struct nlattr **tb;
9111 int err;
9112
9113 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9114 if (!tb)
9115 return -ENOMEM;
9116
9117 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9118 err = -EOPNOTSUPP;
9119 goto out;
9120 }
9121
9122 err = nla_parse(tb, NL80211_ATTR_MAX,
9123 nla_data(attr), nla_len(attr),
9124 nl80211_policy);
9125 if (err)
9126 goto out;
9127
ad2b26ab 9128 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9129 err = PTR_ERR_OR_ZERO(trig->nd_config);
9130 if (err)
9131 trig->nd_config = NULL;
9132
9133out:
9134 kfree(tb);
9135 return err;
9136}
9137
ff1b6e69
JB		 9138static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9139{
9140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9141 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9142 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9143 struct cfg80211_wowlan *ntrig;
964dc9e2 9144 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9145 int err, i;
6abb9cb9 9146 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9147 bool regular = false;
ff1b6e69 9148
964dc9e2 9149 if (!wowlan)
ff1b6e69
JB		 9150 return -EOPNOTSUPP;
9151
ae33bd81
JB		 9152 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9153 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9154 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9155 goto set_wakeup;
9156 }
ff1b6e69
JB		 9157
9158 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9159 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9160 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9161 nl80211_wowlan_policy);
9162 if (err)
9163 return err;
9164
9165 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9166 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9167 return -EINVAL;
9168 new_triggers.any = true;
9169 }
9170
9171 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9172 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9173 return -EINVAL;
9174 new_triggers.disconnect = true;
98fc4386 9175 regular = true;
ff1b6e69
JB		 9176 }
9177
9178 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9179 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9180 return -EINVAL;
9181 new_triggers.magic_pkt = true;
98fc4386 9182 regular = true;
ff1b6e69
JB		 9183 }
9184
77dbbb13
JB		 9185 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9186 return -EINVAL;
9187
9188 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9189 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9190 return -EINVAL;
9191 new_triggers.gtk_rekey_failure = true;
98fc4386 9192 regular = true;
77dbbb13
JB		 9193 }
9194
9195 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9196 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9197 return -EINVAL;
9198 new_triggers.eap_identity_req = true;
98fc4386 9199 regular = true;
77dbbb13
JB		 9200 }
9201
9202 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9203 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9204 return -EINVAL;
9205 new_triggers.four_way_handshake = true;
98fc4386 9206 regular = true;
77dbbb13
JB		 9207 }
9208
9209 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9210 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9211 return -EINVAL;
9212 new_triggers.rfkill_release = true;
98fc4386 9213 regular = true;
77dbbb13
JB		 9214 }
9215
ff1b6e69
JB		 9216 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9217 struct nlattr *pat;
9218 int n_patterns = 0;
bb92d199 9219 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9220 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9221
98fc4386
JB		 9222 regular = true;
9223
ff1b6e69
JB		 9224 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9225 rem)
9226 n_patterns++;
9227 if (n_patterns > wowlan->n_patterns)
9228 return -EINVAL;
9229
9230 new_triggers.patterns = kcalloc(n_patterns,
9231 sizeof(new_triggers.patterns[0]),
9232 GFP_KERNEL);
9233 if (!new_triggers.patterns)
9234 return -ENOMEM;
9235
9236 new_triggers.n_patterns = n_patterns;
9237 i = 0;
9238
9239 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9240 rem) {
922bd80f
JB		 9241 u8 *mask_pat;
9242
50ac6607
AK		 9243 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9244 nla_len(pat), NULL);
ff1b6e69 9245 err = -EINVAL;
50ac6607
AK		 9246 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9247 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9248 goto error;
50ac6607 9249 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9250 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9251 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9252 goto error;
9253 if (pat_len > wowlan->pattern_max_len ||
9254 pat_len < wowlan->pattern_min_len)
9255 goto error;
9256
50ac6607 9257 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9258 pkt_offset = 0;
9259 else
9260 pkt_offset = nla_get_u32(
50ac6607 9261 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9262 if (pkt_offset > wowlan->max_pkt_offset)
9263 goto error;
9264 new_triggers.patterns[i].pkt_offset = pkt_offset;
9265
922bd80f
JB		 9266 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9267 if (!mask_pat) {
ff1b6e69
JB		 9268 err = -ENOMEM;
9269 goto error;
9270 }
922bd80f
JB		 9271 new_triggers.patterns[i].mask = mask_pat;
9272 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9273 mask_len);
922bd80f
JB		 9274 mask_pat += mask_len;
9275 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9276 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9277 memcpy(mask_pat,
50ac6607 9278 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9279 pat_len);
9280 i++;
9281 }
9282 }
9283
2a0e047e 9284 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9285 regular = true;
2a0e047e
JB		 9286 err = nl80211_parse_wowlan_tcp(
9287 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9288 &new_triggers);
9289 if (err)
9290 goto error;
9291 }
9292
8cd4d456 9293 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9294 regular = true;
8cd4d456
LC		 9295 err = nl80211_parse_wowlan_nd(
9296 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9297 &new_triggers);
9298 if (err)
9299 goto error;
9300 }
9301
98fc4386
JB		 9302 /* The 'any' trigger means the device continues operating more or less
9303 * as in its normal operation mode and wakes up the host on most of the
9304 * normal interrupts (like packet RX, ...)
9305 * It therefore makes little sense to combine with the more constrained
9306 * wakeup trigger modes.
9307 */
9308 if (new_triggers.any && regular) {
9309 err = -EINVAL;
9310 goto error;
9311 }
9312
ae33bd81
JB		 9313 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9314 if (!ntrig) {
9315 err = -ENOMEM;
9316 goto error;
ff1b6e69 9317 }
ae33bd81 9318 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9319 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9320
ae33bd81 9321 set_wakeup:
6abb9cb9
JB		 9322 if (rdev->ops->set_wakeup &&
9323 prev_enabled != !!rdev->wiphy.wowlan_config)
9324 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9325
ff1b6e69
JB		 9326 return 0;
9327 error:
9328 for (i = 0; i < new_triggers.n_patterns; i++)
9329 kfree(new_triggers.patterns[i].mask);
9330 kfree(new_triggers.patterns);
2a0e047e
JB		 9331 if (new_triggers.tcp && new_triggers.tcp->sock)
9332 sock_release(new_triggers.tcp->sock);
9333 kfree(new_triggers.tcp);
ff1b6e69
JB		 9334 return err;
9335}
dfb89c56 9336#endif
ff1b6e69 9337
be29b99a
AK		 9338static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9339 struct cfg80211_registered_device *rdev)
9340{
9341 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9342 int i, j, pat_len;
9343 struct cfg80211_coalesce_rules *rule;
9344
9345 if (!rdev->coalesce->n_rules)
9346 return 0;
9347
9348 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9349 if (!nl_rules)
9350 return -ENOBUFS;
9351
9352 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9353 nl_rule = nla_nest_start(msg, i + 1);
9354 if (!nl_rule)
9355 return -ENOBUFS;
9356
9357 rule = &rdev->coalesce->rules[i];
9358 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9359 rule->delay))
9360 return -ENOBUFS;
9361
9362 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9363 rule->condition))
9364 return -ENOBUFS;
9365
9366 nl_pats = nla_nest_start(msg,
9367 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9368 if (!nl_pats)
9369 return -ENOBUFS;
9370
9371 for (j = 0; j < rule->n_patterns; j++) {
9372 nl_pat = nla_nest_start(msg, j + 1);
9373 if (!nl_pat)
9374 return -ENOBUFS;
9375 pat_len = rule->patterns[j].pattern_len;
9376 if (nla_put(msg, NL80211_PKTPAT_MASK,
9377 DIV_ROUND_UP(pat_len, 8),
9378 rule->patterns[j].mask) ||
9379 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9380 rule->patterns[j].pattern) ||
9381 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9382 rule->patterns[j].pkt_offset))
9383 return -ENOBUFS;
9384 nla_nest_end(msg, nl_pat);
9385 }
9386 nla_nest_end(msg, nl_pats);
9387 nla_nest_end(msg, nl_rule);
9388 }
9389 nla_nest_end(msg, nl_rules);
9390
9391 return 0;
9392}
9393
9394static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9395{
9396 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9397 struct sk_buff *msg;
9398 void *hdr;
9399
9400 if (!rdev->wiphy.coalesce)
9401 return -EOPNOTSUPP;
9402
9403 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9404 if (!msg)
9405 return -ENOMEM;
9406
9407 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9408 NL80211_CMD_GET_COALESCE);
9409 if (!hdr)
9410 goto nla_put_failure;
9411
9412 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9413 goto nla_put_failure;
9414
9415 genlmsg_end(msg, hdr);
9416 return genlmsg_reply(msg, info);
9417
9418nla_put_failure:
9419 nlmsg_free(msg);
9420 return -ENOBUFS;
9421}
9422
9423void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9424{
9425 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9426 int i, j;
9427 struct cfg80211_coalesce_rules *rule;
9428
9429 if (!coalesce)
9430 return;
9431
9432 for (i = 0; i < coalesce->n_rules; i++) {
9433 rule = &coalesce->rules[i];
9434 for (j = 0; j < rule->n_patterns; j++)
9435 kfree(rule->patterns[j].mask);
9436 kfree(rule->patterns);
9437 }
9438 kfree(coalesce->rules);
9439 kfree(coalesce);
9440 rdev->coalesce = NULL;
9441}
9442
9443static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9444 struct nlattr *rule,
9445 struct cfg80211_coalesce_rules *new_rule)
9446{
9447 int err, i;
9448 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9449 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9450 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9451 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9452
9453 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9454 nla_len(rule), nl80211_coalesce_policy);
9455 if (err)
9456 return err;
9457
9458 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9459 new_rule->delay =
9460 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9461 if (new_rule->delay > coalesce->max_delay)
9462 return -EINVAL;
9463
9464 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9465 new_rule->condition =
9466 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9467 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9468 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9469 return -EINVAL;
9470
9471 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9472 return -EINVAL;
9473
9474 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9475 rem)
9476 n_patterns++;
9477 if (n_patterns > coalesce->n_patterns)
9478 return -EINVAL;
9479
9480 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9481 GFP_KERNEL);
9482 if (!new_rule->patterns)
9483 return -ENOMEM;
9484
9485 new_rule->n_patterns = n_patterns;
9486 i = 0;
9487
9488 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9489 rem) {
922bd80f
JB		 9490 u8 *mask_pat;
9491
be29b99a
AK		 9492 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9493 nla_len(pat), NULL);
9494 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9495 !pat_tb[NL80211_PKTPAT_PATTERN])
9496 return -EINVAL;
9497 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9498 mask_len = DIV_ROUND_UP(pat_len, 8);
9499 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9500 return -EINVAL;
9501 if (pat_len > coalesce->pattern_max_len ||
9502 pat_len < coalesce->pattern_min_len)
9503 return -EINVAL;
9504
9505 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9506 pkt_offset = 0;
9507 else
9508 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9509 if (pkt_offset > coalesce->max_pkt_offset)
9510 return -EINVAL;
9511 new_rule->patterns[i].pkt_offset = pkt_offset;
9512
922bd80f
JB		 9513 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9514 if (!mask_pat)
be29b99a 9515 return -ENOMEM;
922bd80f
JB		 9516
9517 new_rule->patterns[i].mask = mask_pat;
9518 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9519 mask_len);
9520
9521 mask_pat += mask_len;
9522 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9523 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9524 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9525 pat_len);
be29b99a
AK		 9526 i++;
9527 }
9528
9529 return 0;
9530}
9531
9532static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9533{
9534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9535 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9536 struct cfg80211_coalesce new_coalesce = {};
9537 struct cfg80211_coalesce *n_coalesce;
9538 int err, rem_rule, n_rules = 0, i, j;
9539 struct nlattr *rule;
9540 struct cfg80211_coalesce_rules *tmp_rule;
9541
9542 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9543 return -EOPNOTSUPP;
9544
9545 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9546 cfg80211_rdev_free_coalesce(rdev);
9547 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9548 return 0;
9549 }
9550
9551 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9552 rem_rule)
9553 n_rules++;
9554 if (n_rules > coalesce->n_rules)
9555 return -EINVAL;
9556
9557 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9558 GFP_KERNEL);
9559 if (!new_coalesce.rules)
9560 return -ENOMEM;
9561
9562 new_coalesce.n_rules = n_rules;
9563 i = 0;
9564
9565 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9566 rem_rule) {
9567 err = nl80211_parse_coalesce_rule(rdev, rule,
9568 &new_coalesce.rules[i]);
9569 if (err)
9570 goto error;
9571
9572 i++;
9573 }
9574
9575 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9576 if (err)
9577 goto error;
9578
9579 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9580 if (!n_coalesce) {
9581 err = -ENOMEM;
9582 goto error;
9583 }
9584 cfg80211_rdev_free_coalesce(rdev);
9585 rdev->coalesce = n_coalesce;
9586
9587 return 0;
9588error:
9589 for (i = 0; i < new_coalesce.n_rules; i++) {
9590 tmp_rule = &new_coalesce.rules[i];
9591 for (j = 0; j < tmp_rule->n_patterns; j++)
9592 kfree(tmp_rule->patterns[j].mask);
9593 kfree(tmp_rule->patterns);
9594 }
9595 kfree(new_coalesce.rules);
9596
9597 return err;
9598}
9599
e5497d76
JB		 9600static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9601{
9602 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9603 struct net_device *dev = info->user_ptr[1];
9604 struct wireless_dev *wdev = dev->ieee80211_ptr;
9605 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9606 struct cfg80211_gtk_rekey_data rekey_data;
9607 int err;
9608
9609 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9610 return -EINVAL;
9611
9612 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9613 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9614 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9615 nl80211_rekey_policy);
9616 if (err)
9617 return err;
9618
9619 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9620 return -ERANGE;
9621 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9622 return -ERANGE;
9623 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9624 return -ERANGE;
9625
78f686ca
JB		 9626 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9627 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9628 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9629
9630 wdev_lock(wdev);
9631 if (!wdev->current_bss) {
9632 err = -ENOTCONN;
9633 goto out;
9634 }
9635
9636 if (!rdev->ops->set_rekey_data) {
9637 err = -EOPNOTSUPP;
9638 goto out;
9639 }
9640
e35e4d28 9641 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9642 out:
9643 wdev_unlock(wdev);
9644 return err;
9645}
9646
28946da7
JB		 9647static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9648 struct genl_info *info)
9649{
9650 struct net_device *dev = info->user_ptr[1];
9651 struct wireless_dev *wdev = dev->ieee80211_ptr;
9652
9653 if (wdev->iftype != NL80211_IFTYPE_AP &&
9654 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9655 return -EINVAL;
9656
15e47304 9657 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9658 return -EBUSY;
9659
15e47304 9660 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9661 return 0;
9662}
9663
7f6cf311
JB		 9664static int nl80211_probe_client(struct sk_buff *skb,
9665 struct genl_info *info)
9666{
9667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9668 struct net_device *dev = info->user_ptr[1];
9669 struct wireless_dev *wdev = dev->ieee80211_ptr;
9670 struct sk_buff *msg;
9671 void *hdr;
9672 const u8 *addr;
9673 u64 cookie;
9674 int err;
9675
9676 if (wdev->iftype != NL80211_IFTYPE_AP &&
9677 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9678 return -EOPNOTSUPP;
9679
9680 if (!info->attrs[NL80211_ATTR_MAC])
9681 return -EINVAL;
9682
9683 if (!rdev->ops->probe_client)
9684 return -EOPNOTSUPP;
9685
9686 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9687 if (!msg)
9688 return -ENOMEM;
9689
15e47304 9690 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9691 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9692 if (!hdr) {
9693 err = -ENOBUFS;
7f6cf311
JB		 9694 goto free_msg;
9695 }
9696
9697 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9698
e35e4d28 9699 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9700 if (err)
9701 goto free_msg;
9702
9360ffd1
DM		 9703 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9704 goto nla_put_failure;
7f6cf311
JB		 9705
9706 genlmsg_end(msg, hdr);
9707
9708 return genlmsg_reply(msg, info);
9709
9710 nla_put_failure:
9711 err = -ENOBUFS;
9712 free_msg:
9713 nlmsg_free(msg);
9714 return err;
9715}
9716
5e760230
JB		 9717static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9718{
9719 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9720 struct cfg80211_beacon_registration *reg, *nreg;
9721 int rv;
5e760230
JB		 9722
9723 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9724 return -EOPNOTSUPP;
9725
37c73b5f
BG		 9726 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9727 if (!nreg)
9728 return -ENOMEM;
9729
9730 /* First, check if already registered. */
9731 spin_lock_bh(&rdev->beacon_registrations_lock);
9732 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9733 if (reg->nlportid == info->snd_portid) {
9734 rv = -EALREADY;
9735 goto out_err;
9736 }
9737 }
9738 /* Add it to the list */
9739 nreg->nlportid = info->snd_portid;
9740 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9741
37c73b5f 9742 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9743
9744 return 0;
37c73b5f
BG		 9745out_err:
9746 spin_unlock_bh(&rdev->beacon_registrations_lock);
9747 kfree(nreg);
9748 return rv;
5e760230
JB		 9749}
9750
98104fde
JB		 9751static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9752{
9753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9754 struct wireless_dev *wdev = info->user_ptr[1];
9755 int err;
9756
9757 if (!rdev->ops->start_p2p_device)
9758 return -EOPNOTSUPP;
9759
9760 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9761 return -EOPNOTSUPP;
9762
9763 if (wdev->p2p_started)
9764 return 0;
9765
b6a55015
LC		 9766 if (rfkill_blocked(rdev->rfkill))
9767 return -ERFKILL;
98104fde 9768
eeb126e9 9769 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9770 if (err)
9771 return err;
9772
9773 wdev->p2p_started = true;
98104fde 9774 rdev->opencount++;
98104fde
JB		 9775
9776 return 0;
9777}
9778
9779static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9780{
9781 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9782 struct wireless_dev *wdev = info->user_ptr[1];
9783
9784 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9785 return -EOPNOTSUPP;
9786
9787 if (!rdev->ops->stop_p2p_device)
9788 return -EOPNOTSUPP;
9789
f9f47529 9790 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9791
9792 return 0;
9793}
9794
3713b4e3
JB		 9795static int nl80211_get_protocol_features(struct sk_buff *skb,
9796 struct genl_info *info)
9797{
9798 void *hdr;
9799 struct sk_buff *msg;
9800
9801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9802 if (!msg)
9803 return -ENOMEM;
9804
9805 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9806 NL80211_CMD_GET_PROTOCOL_FEATURES);
9807 if (!hdr)
9808 goto nla_put_failure;
9809
9810 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9811 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9812 goto nla_put_failure;
9813
9814 genlmsg_end(msg, hdr);
9815 return genlmsg_reply(msg, info);
9816
9817 nla_put_failure:
9818 kfree_skb(msg);
9819 return -ENOBUFS;
9820}
9821
355199e0
JM		 9822static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9823{
9824 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9825 struct cfg80211_update_ft_ies_params ft_params;
9826 struct net_device *dev = info->user_ptr[1];
9827
9828 if (!rdev->ops->update_ft_ies)
9829 return -EOPNOTSUPP;
9830
9831 if (!info->attrs[NL80211_ATTR_MDID] ||
9832 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9833 return -EINVAL;
9834
9835 memset(&ft_params, 0, sizeof(ft_params));
9836 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9837 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9838 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9839
9840 return rdev_update_ft_ies(rdev, dev, &ft_params);
9841}
9842
5de17984
AS		 9843static int nl80211_crit_protocol_start(struct sk_buff *skb,
9844 struct genl_info *info)
9845{
9846 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9847 struct wireless_dev *wdev = info->user_ptr[1];
9848 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9849 u16 duration;
9850 int ret;
9851
9852 if (!rdev->ops->crit_proto_start)
9853 return -EOPNOTSUPP;
9854
9855 if (WARN_ON(!rdev->ops->crit_proto_stop))
9856 return -EINVAL;
9857
9858 if (rdev->crit_proto_nlportid)
9859 return -EBUSY;
9860
9861 /* determine protocol if provided */
9862 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9863 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9864
9865 if (proto >= NUM_NL80211_CRIT_PROTO)
9866 return -EINVAL;
9867
9868 /* timeout must be provided */
9869 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9870 return -EINVAL;
9871
9872 duration =
9873 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9874
9875 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9876 return -ERANGE;
9877
9878 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9879 if (!ret)
9880 rdev->crit_proto_nlportid = info->snd_portid;
9881
9882 return ret;
9883}
9884
9885static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9886 struct genl_info *info)
9887{
9888 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9889 struct wireless_dev *wdev = info->user_ptr[1];
9890
9891 if (!rdev->ops->crit_proto_stop)
9892 return -EOPNOTSUPP;
9893
9894 if (rdev->crit_proto_nlportid) {
9895 rdev->crit_proto_nlportid = 0;
9896 rdev_crit_proto_stop(rdev, wdev);
9897 }
9898 return 0;
9899}
9900
ad7e718c
JB		 9901static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9902{
9903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9904 struct wireless_dev *wdev =
9905 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9906 int i, err;
9907 u32 vid, subcmd;
9908
9909 if (!rdev->wiphy.vendor_commands)
9910 return -EOPNOTSUPP;
9911
9912 if (IS_ERR(wdev)) {
9913 err = PTR_ERR(wdev);
9914 if (err != -EINVAL)
9915 return err;
9916 wdev = NULL;
9917 } else if (wdev->wiphy != &rdev->wiphy) {
9918 return -EINVAL;
9919 }
9920
9921 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9922 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9923 return -EINVAL;
9924
9925 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9926 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9927 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9928 const struct wiphy_vendor_command *vcmd;
9929 void *data = NULL;
9930 int len = 0;
9931
9932 vcmd = &rdev->wiphy.vendor_commands[i];
9933
9934 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9935 continue;
9936
9937 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9938 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9939 if (!wdev)
9940 return -EINVAL;
9941 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9942 !wdev->netdev)
9943 return -EINVAL;
9944
9945 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9946 if (wdev->netdev &&
9947 !netif_running(wdev->netdev))
9948 return -ENETDOWN;
9949 if (!wdev->netdev && !wdev->p2p_started)
9950 return -ENETDOWN;
9951 }
7bdbe400
JB		 9952
9953 if (!vcmd->doit)
9954 return -EOPNOTSUPP;
ad7e718c
JB		 9955 } else {
9956 wdev = NULL;
9957 }
9958
9959 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9960 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9961 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9962 }
9963
9964 rdev->cur_cmd_info = info;
9965 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9966 data, len);
9967 rdev->cur_cmd_info = NULL;
9968 return err;
9969 }
9970
9971 return -EOPNOTSUPP;
9972}
9973
7bdbe400
JB		 9974static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
9975 struct netlink_callback *cb,
9976 struct cfg80211_registered_device **rdev,
9977 struct wireless_dev **wdev)
9978{
9979 u32 vid, subcmd;
9980 unsigned int i;
9981 int vcmd_idx = -1;
9982 int err;
9983 void *data = NULL;
9984 unsigned int data_len = 0;
9985
9986 rtnl_lock();
9987
9988 if (cb->args[0]) {
9989 /* subtract the 1 again here */
9990 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
9991 struct wireless_dev *tmp;
9992
9993 if (!wiphy) {
9994 err = -ENODEV;
9995 goto out_unlock;
9996 }
9997 *rdev = wiphy_to_rdev(wiphy);
9998 *wdev = NULL;
9999
10000 if (cb->args[1]) {
10001 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
10002 if (tmp->identifier == cb->args[1] - 1) {
10003 *wdev = tmp;
10004 break;
10005 }
10006 }
10007 }
10008
10009 /* keep rtnl locked in successful case */
10010 return 0;
10011 }
10012
10013 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10014 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10015 nl80211_policy);
10016 if (err)
10017 goto out_unlock;
10018
10019 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10020 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10021 err = -EINVAL;
10022 goto out_unlock;
10023 }
10024
10025 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10026 nl80211_fam.attrbuf);
10027 if (IS_ERR(*wdev))
10028 *wdev = NULL;
10029
10030 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10031 nl80211_fam.attrbuf);
10032 if (IS_ERR(*rdev)) {
10033 err = PTR_ERR(*rdev);
10034 goto out_unlock;
10035 }
10036
10037 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10038 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10039
10040 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10041 const struct wiphy_vendor_command *vcmd;
10042
10043 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10044
10045 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10046 continue;
10047
10048 if (!vcmd->dumpit) {
10049 err = -EOPNOTSUPP;
10050 goto out_unlock;
10051 }
10052
10053 vcmd_idx = i;
10054 break;
10055 }
10056
10057 if (vcmd_idx < 0) {
10058 err = -EOPNOTSUPP;
10059 goto out_unlock;
10060 }
10061
10062 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10063 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10064 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10065 }
10066
10067 /* 0 is the first index - add 1 to parse only once */
10068 cb->args[0] = (*rdev)->wiphy_idx + 1;
10069 /* add 1 to know if it was NULL */
10070 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10071 cb->args[2] = vcmd_idx;
10072 cb->args[3] = (unsigned long)data;
10073 cb->args[4] = data_len;
10074
10075 /* keep rtnl locked in successful case */
10076 return 0;
10077 out_unlock:
10078 rtnl_unlock();
10079 return err;
10080}
10081
10082static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10083 struct netlink_callback *cb)
10084{
10085 struct cfg80211_registered_device *rdev;
10086 struct wireless_dev *wdev;
10087 unsigned int vcmd_idx;
10088 const struct wiphy_vendor_command *vcmd;
10089 void *data;
10090 int data_len;
10091 int err;
10092 struct nlattr *vendor_data;
10093
10094 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10095 if (err)
10096 return err;
10097
10098 vcmd_idx = cb->args[2];
10099 data = (void *)cb->args[3];
10100 data_len = cb->args[4];
10101 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10102
10103 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10104 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10105 if (!wdev)
10106 return -EINVAL;
10107 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10108 !wdev->netdev)
10109 return -EINVAL;
10110
10111 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10112 if (wdev->netdev &&
10113 !netif_running(wdev->netdev))
10114 return -ENETDOWN;
10115 if (!wdev->netdev && !wdev->p2p_started)
10116 return -ENETDOWN;
10117 }
10118 }
10119
10120 while (1) {
10121 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10122 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10123 NL80211_CMD_VENDOR);
10124 if (!hdr)
10125 break;
10126
10127 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10128 (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV,
10129 wdev_id(wdev)))) {
10130 genlmsg_cancel(skb, hdr);
10131 break;
10132 }
10133
10134 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10135 if (!vendor_data) {
10136 genlmsg_cancel(skb, hdr);
10137 break;
10138 }
10139
10140 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10141 (unsigned long *)&cb->args[5]);
10142 nla_nest_end(skb, vendor_data);
10143
10144 if (err == -ENOBUFS || err == -ENOENT) {
10145 genlmsg_cancel(skb, hdr);
10146 break;
10147 } else if (err) {
10148 genlmsg_cancel(skb, hdr);
10149 goto out;
10150 }
10151
10152 genlmsg_end(skb, hdr);
10153 }
10154
10155 err = skb->len;
10156 out:
10157 rtnl_unlock();
10158 return err;
10159}
10160
ad7e718c
JB		 10161struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10162 enum nl80211_commands cmd,
10163 enum nl80211_attrs attr,
10164 int approxlen)
10165{
f26cbf40 10166 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10167
10168 if (WARN_ON(!rdev->cur_cmd_info))
10169 return NULL;
10170
6c09e791 10171 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10172 rdev->cur_cmd_info->snd_portid,
10173 rdev->cur_cmd_info->snd_seq,
567ffc35 10174 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10175}
10176EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10177
10178int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10179{
10180 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10181 void *hdr = ((void **)skb->cb)[1];
10182 struct nlattr *data = ((void **)skb->cb)[2];
10183
bd8c78e7
JB		 10184 /* clear CB data for netlink core to own from now on */
10185 memset(skb->cb, 0, sizeof(skb->cb));
10186
ad7e718c
JB		 10187 if (WARN_ON(!rdev->cur_cmd_info)) {
10188 kfree_skb(skb);
10189 return -EINVAL;
10190 }
10191
10192 nla_nest_end(skb, data);
10193 genlmsg_end(skb, hdr);
10194 return genlmsg_reply(skb, rdev->cur_cmd_info);
10195}
10196EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10197
10198
fa9ffc74
KP		 10199static int nl80211_set_qos_map(struct sk_buff *skb,
10200 struct genl_info *info)
10201{
10202 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10203 struct cfg80211_qos_map *qos_map = NULL;
10204 struct net_device *dev = info->user_ptr[1];
10205 u8 *pos, len, num_des, des_len, des;
10206 int ret;
10207
10208 if (!rdev->ops->set_qos_map)
10209 return -EOPNOTSUPP;
10210
10211 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10212 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10213 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10214
10215 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10216 len > IEEE80211_QOS_MAP_LEN_MAX)
10217 return -EINVAL;
10218
10219 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10220 if (!qos_map)
10221 return -ENOMEM;
10222
10223 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10224 if (num_des) {
10225 des_len = num_des *
10226 sizeof(struct cfg80211_dscp_exception);
10227 memcpy(qos_map->dscp_exception, pos, des_len);
10228 qos_map->num_des = num_des;
10229 for (des = 0; des < num_des; des++) {
10230 if (qos_map->dscp_exception[des].up > 7) {
10231 kfree(qos_map);
10232 return -EINVAL;
10233 }
10234 }
10235 pos += des_len;
10236 }
10237 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10238 }
10239
10240 wdev_lock(dev->ieee80211_ptr);
10241 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10242 if (!ret)
10243 ret = rdev_set_qos_map(rdev, dev, qos_map);
10244 wdev_unlock(dev->ieee80211_ptr);
10245
10246 kfree(qos_map);
10247 return ret;
10248}
10249
960d01ac
JB		 10250static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10251{
10252 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10253 struct net_device *dev = info->user_ptr[1];
10254 struct wireless_dev *wdev = dev->ieee80211_ptr;
10255 const u8 *peer;
10256 u8 tsid, up;
10257 u16 admitted_time = 0;
10258 int err;
10259
723e73ac 10260 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10261 return -EOPNOTSUPP;
10262
10263 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10264 !info->attrs[NL80211_ATTR_USER_PRIO])
10265 return -EINVAL;
10266
10267 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10268 if (tsid >= IEEE80211_NUM_TIDS)
10269 return -EINVAL;
10270
10271 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10272 if (up >= IEEE80211_NUM_UPS)
10273 return -EINVAL;
10274
10275 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10276 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10277 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10278 * need more attributes for that (e.g. BA session requirement);
10279 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10280 */
10281 return -EINVAL;
10282 }
10283
10284 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10285
10286 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10287 admitted_time =
10288 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10289 if (!admitted_time)
10290 return -EINVAL;
10291 }
10292
10293 wdev_lock(wdev);
10294 switch (wdev->iftype) {
10295 case NL80211_IFTYPE_STATION:
10296 case NL80211_IFTYPE_P2P_CLIENT:
10297 if (wdev->current_bss)
10298 break;
10299 err = -ENOTCONN;
10300 goto out;
10301 default:
10302 err = -EOPNOTSUPP;
10303 goto out;
10304 }
10305
10306 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10307
10308 out:
10309 wdev_unlock(wdev);
10310 return err;
10311}
10312
10313static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10314{
10315 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10316 struct net_device *dev = info->user_ptr[1];
10317 struct wireless_dev *wdev = dev->ieee80211_ptr;
10318 const u8 *peer;
10319 u8 tsid;
10320 int err;
10321
10322 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10323 return -EINVAL;
10324
10325 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10326 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10327
10328 wdev_lock(wdev);
10329 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10330 wdev_unlock(wdev);
10331
10332 return err;
10333}
10334
1057d35e
AN		 10335static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10336 struct genl_info *info)
10337{
10338 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10339 struct net_device *dev = info->user_ptr[1];
10340 struct wireless_dev *wdev = dev->ieee80211_ptr;
10341 struct cfg80211_chan_def chandef = {};
10342 const u8 *addr;
10343 u8 oper_class;
10344 int err;
10345
10346 if (!rdev->ops->tdls_channel_switch ||
10347 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10348 return -EOPNOTSUPP;
10349
10350 switch (dev->ieee80211_ptr->iftype) {
10351 case NL80211_IFTYPE_STATION:
10352 case NL80211_IFTYPE_P2P_CLIENT:
10353 break;
10354 default:
10355 return -EOPNOTSUPP;
10356 }
10357
10358 if (!info->attrs[NL80211_ATTR_MAC] ||
10359 !info->attrs[NL80211_ATTR_OPER_CLASS])
10360 return -EINVAL;
10361
10362 err = nl80211_parse_chandef(rdev, info, &chandef);
10363 if (err)
10364 return err;
10365
10366 /*
10367 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10368 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10369 * specification is not defined for them.
10370 */
10371 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10372 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10373 chandef.width != NL80211_CHAN_WIDTH_20)
10374 return -EINVAL;
10375
10376 /* we will be active on the TDLS link */
923b352f
AN		 10377 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10378 wdev->iftype))
1057d35e
AN		 10379 return -EINVAL;
10380
10381 /* don't allow switching to DFS channels */
10382 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10383 return -EINVAL;
10384
10385 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10386 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10387
10388 wdev_lock(wdev);
10389 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10390 wdev_unlock(wdev);
10391
10392 return err;
10393}
10394
10395static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10396 struct genl_info *info)
10397{
10398 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10399 struct net_device *dev = info->user_ptr[1];
10400 struct wireless_dev *wdev = dev->ieee80211_ptr;
10401 const u8 *addr;
10402
10403 if (!rdev->ops->tdls_channel_switch ||
10404 !rdev->ops->tdls_cancel_channel_switch ||
10405 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10406 return -EOPNOTSUPP;
10407
10408 switch (dev->ieee80211_ptr->iftype) {
10409 case NL80211_IFTYPE_STATION:
10410 case NL80211_IFTYPE_P2P_CLIENT:
10411 break;
10412 default:
10413 return -EOPNOTSUPP;
10414 }
10415
10416 if (!info->attrs[NL80211_ATTR_MAC])
10417 return -EINVAL;
10418
10419 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10420
10421 wdev_lock(wdev);
10422 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10423 wdev_unlock(wdev);
10424
10425 return 0;
10426}
10427
4c476991
JB		 10428#define NL80211_FLAG_NEED_WIPHY 0x01
10429#define NL80211_FLAG_NEED_NETDEV 0x02
10430#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10431#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10432#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10433 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10434#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10435/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10436#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10437 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10438#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10439
f84f771d 10440static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10441 struct genl_info *info)
10442{
10443 struct cfg80211_registered_device *rdev;
89a54e48 10444 struct wireless_dev *wdev;
4c476991 10445 struct net_device *dev;
4c476991
JB		 10446 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10447
10448 if (rtnl)
10449 rtnl_lock();
10450
10451 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10452 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10453 if (IS_ERR(rdev)) {
10454 if (rtnl)
10455 rtnl_unlock();
10456 return PTR_ERR(rdev);
10457 }
10458 info->user_ptr[0] = rdev;
1bf614ef
JB		 10459 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10460 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10461 ASSERT_RTNL();
10462
89a54e48
JB		 10463 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10464 info->attrs);
10465 if (IS_ERR(wdev)) {
4c476991
JB		 10466 if (rtnl)
10467 rtnl_unlock();
89a54e48 10468 return PTR_ERR(wdev);
4c476991 10469 }
89a54e48 10470
89a54e48 10471 dev = wdev->netdev;
f26cbf40 10472 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10473
1bf614ef
JB		 10474 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10475 if (!dev) {
1bf614ef
JB		 10476 if (rtnl)
10477 rtnl_unlock();
10478 return -EINVAL;
10479 }
10480
10481 info->user_ptr[1] = dev;
10482 } else {
10483 info->user_ptr[1] = wdev;
41265714 10484 }
1bf614ef
JB		 10485
10486 if (dev) {
10487 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10488 !netif_running(dev)) {
1bf614ef
JB		 10489 if (rtnl)
10490 rtnl_unlock();
10491 return -ENETDOWN;
10492 }
10493
10494 dev_hold(dev);
98104fde
JB		 10495 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10496 if (!wdev->p2p_started) {
98104fde
JB		 10497 if (rtnl)
10498 rtnl_unlock();
10499 return -ENETDOWN;
10500 }
41265714 10501 }
89a54e48 10502
4c476991 10503 info->user_ptr[0] = rdev;
4c476991
JB		 10504 }
10505
10506 return 0;
10507}
10508
f84f771d 10509static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10510 struct genl_info *info)
10511{
1bf614ef
JB		 10512 if (info->user_ptr[1]) {
10513 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10514 struct wireless_dev *wdev = info->user_ptr[1];
10515
10516 if (wdev->netdev)
10517 dev_put(wdev->netdev);
10518 } else {
10519 dev_put(info->user_ptr[1]);
10520 }
10521 }
5393b917 10522
4c476991
JB		 10523 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10524 rtnl_unlock();
5393b917
JB		 10525
10526 /* If needed, clear the netlink message payload from the SKB
10527 * as it might contain key data that shouldn't stick around on
10528 * the heap after the SKB is freed. The netlink message header
10529 * is still needed for further processing, so leave it intact.
10530 */
10531 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10532 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10533
10534 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10535 }
4c476991
JB		 10536}
10537
4534de83 10538static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10539 {
10540 .cmd = NL80211_CMD_GET_WIPHY,
10541 .doit = nl80211_get_wiphy,
10542 .dumpit = nl80211_dump_wiphy,
86e8cf98 10543 .done = nl80211_dump_wiphy_done,
55682965
JB		 10544 .policy = nl80211_policy,
10545 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10546 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10547 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10548 },
10549 {
10550 .cmd = NL80211_CMD_SET_WIPHY,
10551 .doit = nl80211_set_wiphy,
10552 .policy = nl80211_policy,
10553 .flags = GENL_ADMIN_PERM,
4c476991 10554 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10555 },
10556 {
10557 .cmd = NL80211_CMD_GET_INTERFACE,
10558 .doit = nl80211_get_interface,
10559 .dumpit = nl80211_dump_interface,
10560 .policy = nl80211_policy,
10561 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10562 .internal_flags = NL80211_FLAG_NEED_WDEV |
10563 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10564 },
10565 {
10566 .cmd = NL80211_CMD_SET_INTERFACE,
10567 .doit = nl80211_set_interface,
10568 .policy = nl80211_policy,
10569 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10570 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10571 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10572 },
10573 {
10574 .cmd = NL80211_CMD_NEW_INTERFACE,
10575 .doit = nl80211_new_interface,
10576 .policy = nl80211_policy,
10577 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10578 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10579 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10580 },
10581 {
10582 .cmd = NL80211_CMD_DEL_INTERFACE,
10583 .doit = nl80211_del_interface,
10584 .policy = nl80211_policy,
41ade00f 10585 .flags = GENL_ADMIN_PERM,
84efbb84 10586 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10587 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10588 },
10589 {
10590 .cmd = NL80211_CMD_GET_KEY,
10591 .doit = nl80211_get_key,
10592 .policy = nl80211_policy,
10593 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10594 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10595 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10596 },
10597 {
10598 .cmd = NL80211_CMD_SET_KEY,
10599 .doit = nl80211_set_key,
10600 .policy = nl80211_policy,
10601 .flags = GENL_ADMIN_PERM,
41265714 10602 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10603 NL80211_FLAG_NEED_RTNL |
10604 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10605 },
10606 {
10607 .cmd = NL80211_CMD_NEW_KEY,
10608 .doit = nl80211_new_key,
10609 .policy = nl80211_policy,
10610 .flags = GENL_ADMIN_PERM,
41265714 10611 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10612 NL80211_FLAG_NEED_RTNL |
10613 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10614 },
10615 {
10616 .cmd = NL80211_CMD_DEL_KEY,
10617 .doit = nl80211_del_key,
10618 .policy = nl80211_policy,
55682965 10619 .flags = GENL_ADMIN_PERM,
41265714 10620 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10621 NL80211_FLAG_NEED_RTNL,
55682965 10622 },
ed1b6cc7
JB		 10623 {
10624 .cmd = NL80211_CMD_SET_BEACON,
10625 .policy = nl80211_policy,
10626 .flags = GENL_ADMIN_PERM,
8860020e 10627 .doit = nl80211_set_beacon,
2b5f8b0b 10628 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10629 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10630 },
10631 {
8860020e 10632 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10633 .policy = nl80211_policy,
10634 .flags = GENL_ADMIN_PERM,
8860020e 10635 .doit = nl80211_start_ap,
2b5f8b0b 10636 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10637 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10638 },
10639 {
8860020e 10640 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10641 .policy = nl80211_policy,
10642 .flags = GENL_ADMIN_PERM,
8860020e 10643 .doit = nl80211_stop_ap,
2b5f8b0b 10644 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10645 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10646 },
5727ef1b
JB		 10647 {
10648 .cmd = NL80211_CMD_GET_STATION,
10649 .doit = nl80211_get_station,
2ec600d6 10650 .dumpit = nl80211_dump_station,
5727ef1b 10651 .policy = nl80211_policy,
4c476991
JB		 10652 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10653 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10654 },
10655 {
10656 .cmd = NL80211_CMD_SET_STATION,
10657 .doit = nl80211_set_station,
10658 .policy = nl80211_policy,
10659 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10660 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10661 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10662 },
10663 {
10664 .cmd = NL80211_CMD_NEW_STATION,
10665 .doit = nl80211_new_station,
10666 .policy = nl80211_policy,
10667 .flags = GENL_ADMIN_PERM,
41265714 10668 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10669 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10670 },
10671 {
10672 .cmd = NL80211_CMD_DEL_STATION,
10673 .doit = nl80211_del_station,
10674 .policy = nl80211_policy,
2ec600d6 10675 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10676 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10677 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10678 },
10679 {
10680 .cmd = NL80211_CMD_GET_MPATH,
10681 .doit = nl80211_get_mpath,
10682 .dumpit = nl80211_dump_mpath,
10683 .policy = nl80211_policy,
10684 .flags = GENL_ADMIN_PERM,
41265714 10685 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10686 NL80211_FLAG_NEED_RTNL,
2ec600d6 10687 },
66be7d2b
HR		 10688 {
10689 .cmd = NL80211_CMD_GET_MPP,
10690 .doit = nl80211_get_mpp,
10691 .dumpit = nl80211_dump_mpp,
10692 .policy = nl80211_policy,
10693 .flags = GENL_ADMIN_PERM,
10694 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10695 NL80211_FLAG_NEED_RTNL,
10696 },
2ec600d6
LCC		 10697 {
10698 .cmd = NL80211_CMD_SET_MPATH,
10699 .doit = nl80211_set_mpath,
10700 .policy = nl80211_policy,
10701 .flags = GENL_ADMIN_PERM,
41265714 10702 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10703 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10704 },
10705 {
10706 .cmd = NL80211_CMD_NEW_MPATH,
10707 .doit = nl80211_new_mpath,
10708 .policy = nl80211_policy,
10709 .flags = GENL_ADMIN_PERM,
41265714 10710 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10711 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10712 },
10713 {
10714 .cmd = NL80211_CMD_DEL_MPATH,
10715 .doit = nl80211_del_mpath,
10716 .policy = nl80211_policy,
9f1ba906 10717 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10718 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10719 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10720 },
10721 {
10722 .cmd = NL80211_CMD_SET_BSS,
10723 .doit = nl80211_set_bss,
10724 .policy = nl80211_policy,
b2e1b302 10725 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10726 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10727 NL80211_FLAG_NEED_RTNL,
b2e1b302 10728 },
f130347c
LR		 10729 {
10730 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10731 .doit = nl80211_get_reg_do,
10732 .dumpit = nl80211_get_reg_dump,
f130347c 10733 .policy = nl80211_policy,
5fe231e8 10734 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10735 /* can be retrieved by unprivileged users */
10736 },
b2e1b302
LR		 10737 {
10738 .cmd = NL80211_CMD_SET_REG,
10739 .doit = nl80211_set_reg,
10740 .policy = nl80211_policy,
10741 .flags = GENL_ADMIN_PERM,
5fe231e8 10742 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10743 },
10744 {
10745 .cmd = NL80211_CMD_REQ_SET_REG,
10746 .doit = nl80211_req_set_reg,
10747 .policy = nl80211_policy,
93da9cc1 10748 .flags = GENL_ADMIN_PERM,
10749 },
10750 {
24bdd9f4
JC		 10751 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10752 .doit = nl80211_get_mesh_config,
93da9cc1 10753 .policy = nl80211_policy,
10754 /* can be retrieved by unprivileged users */
2b5f8b0b 10755 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10756 NL80211_FLAG_NEED_RTNL,
93da9cc1 10757 },
10758 {
24bdd9f4
JC		 10759 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10760 .doit = nl80211_update_mesh_config,
93da9cc1 10761 .policy = nl80211_policy,
9aed3cc1 10762 .flags = GENL_ADMIN_PERM,
29cbe68c 10763 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10764 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10765 },
2a519311
JB		 10766 {
10767 .cmd = NL80211_CMD_TRIGGER_SCAN,
10768 .doit = nl80211_trigger_scan,
10769 .policy = nl80211_policy,
10770 .flags = GENL_ADMIN_PERM,
fd014284 10771 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10772 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10773 },
10774 {
10775 .cmd = NL80211_CMD_GET_SCAN,
10776 .policy = nl80211_policy,
10777 .dumpit = nl80211_dump_scan,
10778 },
807f8a8c
LC		 10779 {
10780 .cmd = NL80211_CMD_START_SCHED_SCAN,
10781 .doit = nl80211_start_sched_scan,
10782 .policy = nl80211_policy,
10783 .flags = GENL_ADMIN_PERM,
10784 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10785 NL80211_FLAG_NEED_RTNL,
10786 },
10787 {
10788 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10789 .doit = nl80211_stop_sched_scan,
10790 .policy = nl80211_policy,
10791 .flags = GENL_ADMIN_PERM,
10792 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10793 NL80211_FLAG_NEED_RTNL,
10794 },
636a5d36
JM		 10795 {
10796 .cmd = NL80211_CMD_AUTHENTICATE,
10797 .doit = nl80211_authenticate,
10798 .policy = nl80211_policy,
10799 .flags = GENL_ADMIN_PERM,
41265714 10800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10801 NL80211_FLAG_NEED_RTNL |
10802 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10803 },
10804 {
10805 .cmd = NL80211_CMD_ASSOCIATE,
10806 .doit = nl80211_associate,
10807 .policy = nl80211_policy,
10808 .flags = GENL_ADMIN_PERM,
41265714 10809 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10810 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10811 },
10812 {
10813 .cmd = NL80211_CMD_DEAUTHENTICATE,
10814 .doit = nl80211_deauthenticate,
10815 .policy = nl80211_policy,
10816 .flags = GENL_ADMIN_PERM,
41265714 10817 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10818 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10819 },
10820 {
10821 .cmd = NL80211_CMD_DISASSOCIATE,
10822 .doit = nl80211_disassociate,
10823 .policy = nl80211_policy,
10824 .flags = GENL_ADMIN_PERM,
41265714 10825 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10826 NL80211_FLAG_NEED_RTNL,
636a5d36 10827 },
04a773ad
JB		 10828 {
10829 .cmd = NL80211_CMD_JOIN_IBSS,
10830 .doit = nl80211_join_ibss,
10831 .policy = nl80211_policy,
10832 .flags = GENL_ADMIN_PERM,
41265714 10833 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10834 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10835 },
10836 {
10837 .cmd = NL80211_CMD_LEAVE_IBSS,
10838 .doit = nl80211_leave_ibss,
10839 .policy = nl80211_policy,
10840 .flags = GENL_ADMIN_PERM,
41265714 10841 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10842 NL80211_FLAG_NEED_RTNL,
04a773ad 10843 },
aff89a9b
JB		 10844#ifdef CONFIG_NL80211_TESTMODE
10845 {
10846 .cmd = NL80211_CMD_TESTMODE,
10847 .doit = nl80211_testmode_do,
71063f0e 10848 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10849 .policy = nl80211_policy,
10850 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10851 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10852 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10853 },
10854#endif
b23aa676
SO		 10855 {
10856 .cmd = NL80211_CMD_CONNECT,
10857 .doit = nl80211_connect,
10858 .policy = nl80211_policy,
10859 .flags = GENL_ADMIN_PERM,
41265714 10860 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10861 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10862 },
10863 {
10864 .cmd = NL80211_CMD_DISCONNECT,
10865 .doit = nl80211_disconnect,
10866 .policy = nl80211_policy,
10867 .flags = GENL_ADMIN_PERM,
41265714 10868 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10869 NL80211_FLAG_NEED_RTNL,
b23aa676 10870 },
463d0183
JB		 10871 {
10872 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10873 .doit = nl80211_wiphy_netns,
10874 .policy = nl80211_policy,
10875 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10876 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10877 NL80211_FLAG_NEED_RTNL,
463d0183 10878 },
61fa713c
HS		 10879 {
10880 .cmd = NL80211_CMD_GET_SURVEY,
10881 .policy = nl80211_policy,
10882 .dumpit = nl80211_dump_survey,
10883 },
67fbb16b
SO		 10884 {
10885 .cmd = NL80211_CMD_SET_PMKSA,
10886 .doit = nl80211_setdel_pmksa,
10887 .policy = nl80211_policy,
10888 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10889 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10890 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10891 },
10892 {
10893 .cmd = NL80211_CMD_DEL_PMKSA,
10894 .doit = nl80211_setdel_pmksa,
10895 .policy = nl80211_policy,
10896 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10897 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10898 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10899 },
10900 {
10901 .cmd = NL80211_CMD_FLUSH_PMKSA,
10902 .doit = nl80211_flush_pmksa,
10903 .policy = nl80211_policy,
10904 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10905 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10906 NL80211_FLAG_NEED_RTNL,
67fbb16b 10907 },
9588bbd5
JM		 10908 {
10909 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10910 .doit = nl80211_remain_on_channel,
10911 .policy = nl80211_policy,
10912 .flags = GENL_ADMIN_PERM,
71bbc994 10913 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10914 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10915 },
10916 {
10917 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10918 .doit = nl80211_cancel_remain_on_channel,
10919 .policy = nl80211_policy,
10920 .flags = GENL_ADMIN_PERM,
71bbc994 10921 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10922 NL80211_FLAG_NEED_RTNL,
9588bbd5 10923 },
13ae75b1
JM		 10924 {
10925 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10926 .doit = nl80211_set_tx_bitrate_mask,
10927 .policy = nl80211_policy,
10928 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10929 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10930 NL80211_FLAG_NEED_RTNL,
13ae75b1 10931 },
026331c4 10932 {
2e161f78
JB		 10933 .cmd = NL80211_CMD_REGISTER_FRAME,
10934 .doit = nl80211_register_mgmt,
026331c4
JM		 10935 .policy = nl80211_policy,
10936 .flags = GENL_ADMIN_PERM,
71bbc994 10937 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10938 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10939 },
10940 {
2e161f78
JB		 10941 .cmd = NL80211_CMD_FRAME,
10942 .doit = nl80211_tx_mgmt,
026331c4 10943 .policy = nl80211_policy,
f7ca38df 10944 .flags = GENL_ADMIN_PERM,
71bbc994 10945 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10946 NL80211_FLAG_NEED_RTNL,
10947 },
10948 {
10949 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10950 .doit = nl80211_tx_mgmt_cancel_wait,
10951 .policy = nl80211_policy,
026331c4 10952 .flags = GENL_ADMIN_PERM,
71bbc994 10953 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10954 NL80211_FLAG_NEED_RTNL,
026331c4 10955 },
ffb9eb3d
KV		 10956 {
10957 .cmd = NL80211_CMD_SET_POWER_SAVE,
10958 .doit = nl80211_set_power_save,
10959 .policy = nl80211_policy,
10960 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10961 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10962 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10963 },
10964 {
10965 .cmd = NL80211_CMD_GET_POWER_SAVE,
10966 .doit = nl80211_get_power_save,
10967 .policy = nl80211_policy,
10968 /* can be retrieved by unprivileged users */
4c476991
JB		 10969 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10970 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10971 },
d6dc1a38
JO		 10972 {
10973 .cmd = NL80211_CMD_SET_CQM,
10974 .doit = nl80211_set_cqm,
10975 .policy = nl80211_policy,
10976 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10977 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10978 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10979 },
f444de05
JB		 10980 {
10981 .cmd = NL80211_CMD_SET_CHANNEL,
10982 .doit = nl80211_set_channel,
10983 .policy = nl80211_policy,
10984 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10985 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10986 NL80211_FLAG_NEED_RTNL,
f444de05 10987 },
e8347eba
BJ		 10988 {
10989 .cmd = NL80211_CMD_SET_WDS_PEER,
10990 .doit = nl80211_set_wds_peer,
10991 .policy = nl80211_policy,
10992 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10993 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10994 NL80211_FLAG_NEED_RTNL,
e8347eba 10995 },
29cbe68c
JB		 10996 {
10997 .cmd = NL80211_CMD_JOIN_MESH,
10998 .doit = nl80211_join_mesh,
10999 .policy = nl80211_policy,
11000 .flags = GENL_ADMIN_PERM,
11001 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11002 NL80211_FLAG_NEED_RTNL,
11003 },
11004 {
11005 .cmd = NL80211_CMD_LEAVE_MESH,
11006 .doit = nl80211_leave_mesh,
11007 .policy = nl80211_policy,
11008 .flags = GENL_ADMIN_PERM,
11009 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11010 NL80211_FLAG_NEED_RTNL,
11011 },
6e0bd6c3
RL		 11012 {
11013 .cmd = NL80211_CMD_JOIN_OCB,
11014 .doit = nl80211_join_ocb,
11015 .policy = nl80211_policy,
11016 .flags = GENL_ADMIN_PERM,
11017 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11018 NL80211_FLAG_NEED_RTNL,
11019 },
11020 {
11021 .cmd = NL80211_CMD_LEAVE_OCB,
11022 .doit = nl80211_leave_ocb,
11023 .policy = nl80211_policy,
11024 .flags = GENL_ADMIN_PERM,
11025 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11026 NL80211_FLAG_NEED_RTNL,
11027 },
dfb89c56 11028#ifdef CONFIG_PM
ff1b6e69
JB		 11029 {
11030 .cmd = NL80211_CMD_GET_WOWLAN,
11031 .doit = nl80211_get_wowlan,
11032 .policy = nl80211_policy,
11033 /* can be retrieved by unprivileged users */
11034 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11035 NL80211_FLAG_NEED_RTNL,
11036 },
11037 {
11038 .cmd = NL80211_CMD_SET_WOWLAN,
11039 .doit = nl80211_set_wowlan,
11040 .policy = nl80211_policy,
11041 .flags = GENL_ADMIN_PERM,
11042 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11043 NL80211_FLAG_NEED_RTNL,
11044 },
dfb89c56 11045#endif
e5497d76
JB		 11046 {
11047 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11048 .doit = nl80211_set_rekey_data,
11049 .policy = nl80211_policy,
11050 .flags = GENL_ADMIN_PERM,
11051 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11052 NL80211_FLAG_NEED_RTNL |
11053 NL80211_FLAG_CLEAR_SKB,
e5497d76 11054 },
109086ce
AN		 11055 {
11056 .cmd = NL80211_CMD_TDLS_MGMT,
11057 .doit = nl80211_tdls_mgmt,
11058 .policy = nl80211_policy,
11059 .flags = GENL_ADMIN_PERM,
11060 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11061 NL80211_FLAG_NEED_RTNL,
11062 },
11063 {
11064 .cmd = NL80211_CMD_TDLS_OPER,
11065 .doit = nl80211_tdls_oper,
11066 .policy = nl80211_policy,
11067 .flags = GENL_ADMIN_PERM,
11068 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11069 NL80211_FLAG_NEED_RTNL,
11070 },
28946da7
JB		 11071 {
11072 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11073 .doit = nl80211_register_unexpected_frame,
11074 .policy = nl80211_policy,
11075 .flags = GENL_ADMIN_PERM,
11076 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11077 NL80211_FLAG_NEED_RTNL,
11078 },
7f6cf311
JB		 11079 {
11080 .cmd = NL80211_CMD_PROBE_CLIENT,
11081 .doit = nl80211_probe_client,
11082 .policy = nl80211_policy,
11083 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11084 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11085 NL80211_FLAG_NEED_RTNL,
11086 },
5e760230
JB		 11087 {
11088 .cmd = NL80211_CMD_REGISTER_BEACONS,
11089 .doit = nl80211_register_beacons,
11090 .policy = nl80211_policy,
11091 .flags = GENL_ADMIN_PERM,
11092 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11093 NL80211_FLAG_NEED_RTNL,
11094 },
1d9d9213
SW		 11095 {
11096 .cmd = NL80211_CMD_SET_NOACK_MAP,
11097 .doit = nl80211_set_noack_map,
11098 .policy = nl80211_policy,
11099 .flags = GENL_ADMIN_PERM,
11100 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11101 NL80211_FLAG_NEED_RTNL,
11102 },
98104fde
JB		 11103 {
11104 .cmd = NL80211_CMD_START_P2P_DEVICE,
11105 .doit = nl80211_start_p2p_device,
11106 .policy = nl80211_policy,
11107 .flags = GENL_ADMIN_PERM,
11108 .internal_flags = NL80211_FLAG_NEED_WDEV |
11109 NL80211_FLAG_NEED_RTNL,
11110 },
11111 {
11112 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11113 .doit = nl80211_stop_p2p_device,
11114 .policy = nl80211_policy,
11115 .flags = GENL_ADMIN_PERM,
11116 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11117 NL80211_FLAG_NEED_RTNL,
11118 },
f4e583c8
AQ		 11119 {
11120 .cmd = NL80211_CMD_SET_MCAST_RATE,
11121 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 11122 .policy = nl80211_policy,
11123 .flags = GENL_ADMIN_PERM,
11124 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11125 NL80211_FLAG_NEED_RTNL,
11126 },
11127 {
11128 .cmd = NL80211_CMD_SET_MAC_ACL,
11129 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 11130 .policy = nl80211_policy,
11131 .flags = GENL_ADMIN_PERM,
11132 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11133 NL80211_FLAG_NEED_RTNL,
11134 },
04f39047
SW		 11135 {
11136 .cmd = NL80211_CMD_RADAR_DETECT,
11137 .doit = nl80211_start_radar_detection,
11138 .policy = nl80211_policy,
11139 .flags = GENL_ADMIN_PERM,
11140 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11141 NL80211_FLAG_NEED_RTNL,
11142 },
3713b4e3
JB		 11143 {
11144 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11145 .doit = nl80211_get_protocol_features,
11146 .policy = nl80211_policy,
11147 },
355199e0
JM		 11148 {
11149 .cmd = NL80211_CMD_UPDATE_FT_IES,
11150 .doit = nl80211_update_ft_ies,
11151 .policy = nl80211_policy,
11152 .flags = GENL_ADMIN_PERM,
11153 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11154 NL80211_FLAG_NEED_RTNL,
11155 },
5de17984
AS		 11156 {
11157 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11158 .doit = nl80211_crit_protocol_start,
11159 .policy = nl80211_policy,
11160 .flags = GENL_ADMIN_PERM,
11161 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11162 NL80211_FLAG_NEED_RTNL,
11163 },
11164 {
11165 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11166 .doit = nl80211_crit_protocol_stop,
11167 .policy = nl80211_policy,
11168 .flags = GENL_ADMIN_PERM,
11169 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11170 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11171 },
11172 {
11173 .cmd = NL80211_CMD_GET_COALESCE,
11174 .doit = nl80211_get_coalesce,
11175 .policy = nl80211_policy,
11176 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11177 NL80211_FLAG_NEED_RTNL,
11178 },
11179 {
11180 .cmd = NL80211_CMD_SET_COALESCE,
11181 .doit = nl80211_set_coalesce,
11182 .policy = nl80211_policy,
11183 .flags = GENL_ADMIN_PERM,
11184 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11185 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11186 },
11187 {
11188 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11189 .doit = nl80211_channel_switch,
11190 .policy = nl80211_policy,
11191 .flags = GENL_ADMIN_PERM,
11192 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11193 NL80211_FLAG_NEED_RTNL,
11194 },
ad7e718c
JB		 11195 {
11196 .cmd = NL80211_CMD_VENDOR,
11197 .doit = nl80211_vendor_cmd,
7bdbe400 11198 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c
JB		 11199 .policy = nl80211_policy,
11200 .flags = GENL_ADMIN_PERM,
11201 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11202 NL80211_FLAG_NEED_RTNL,
11203 },
fa9ffc74
KP		 11204 {
11205 .cmd = NL80211_CMD_SET_QOS_MAP,
11206 .doit = nl80211_set_qos_map,
11207 .policy = nl80211_policy,
11208 .flags = GENL_ADMIN_PERM,
11209 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11210 NL80211_FLAG_NEED_RTNL,
11211 },
960d01ac
JB		 11212 {
11213 .cmd = NL80211_CMD_ADD_TX_TS,
11214 .doit = nl80211_add_tx_ts,
11215 .policy = nl80211_policy,
11216 .flags = GENL_ADMIN_PERM,
11217 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11218 NL80211_FLAG_NEED_RTNL,
11219 },
11220 {
11221 .cmd = NL80211_CMD_DEL_TX_TS,
11222 .doit = nl80211_del_tx_ts,
11223 .policy = nl80211_policy,
11224 .flags = GENL_ADMIN_PERM,
11225 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11226 NL80211_FLAG_NEED_RTNL,
11227 },
1057d35e
AN		 11228 {
11229 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11230 .doit = nl80211_tdls_channel_switch,
11231 .policy = nl80211_policy,
11232 .flags = GENL_ADMIN_PERM,
11233 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11234 NL80211_FLAG_NEED_RTNL,
11235 },
11236 {
11237 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11238 .doit = nl80211_tdls_cancel_channel_switch,
11239 .policy = nl80211_policy,
11240 .flags = GENL_ADMIN_PERM,
11241 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11242 NL80211_FLAG_NEED_RTNL,
11243 },
55682965 11244};
9588bbd5 11245
55682965
JB		 11246/* notification functions */
11247
3bb20556
JB		 11248void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11249 enum nl80211_commands cmd)
55682965
JB		 11250{
11251 struct sk_buff *msg;
86e8cf98 11252 struct nl80211_dump_wiphy_state state = {};
55682965 11253
3bb20556
JB		 11254 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11255 cmd != NL80211_CMD_DEL_WIPHY);
11256
fd2120ca 11257 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11258 if (!msg)
11259 return;
11260
3bb20556 11261 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11262 nlmsg_free(msg);
11263 return;
11264 }
11265
68eb5503 11266 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11267 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11268}
11269
362a415d
JB		 11270static int nl80211_add_scan_req(struct sk_buff *msg,
11271 struct cfg80211_registered_device *rdev)
11272{
11273 struct cfg80211_scan_request *req = rdev->scan_req;
11274 struct nlattr *nest;
11275 int i;
11276
11277 if (WARN_ON(!req))
11278 return 0;
11279
11280 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11281 if (!nest)
11282 goto nla_put_failure;
9360ffd1
DM		 11283 for (i = 0; i < req->n_ssids; i++) {
11284 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11285 goto nla_put_failure;
11286 }
362a415d
JB		 11287 nla_nest_end(msg, nest);
11288
11289 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11290 if (!nest)
11291 goto nla_put_failure;
9360ffd1
DM		 11292 for (i = 0; i < req->n_channels; i++) {
11293 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11294 goto nla_put_failure;
11295 }
362a415d
JB		 11296 nla_nest_end(msg, nest);
11297
9360ffd1
DM		 11298 if (req->ie &&
11299 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11300 goto nla_put_failure;
362a415d 11301
ae917c9f
JB		 11302 if (req->flags &&
11303 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11304 goto nla_put_failure;
ed473771 11305
362a415d
JB		 11306 return 0;
11307 nla_put_failure:
11308 return -ENOBUFS;
11309}
11310
a538e2d5
JB		 11311static int nl80211_send_scan_msg(struct sk_buff *msg,
11312 struct cfg80211_registered_device *rdev,
fd014284 11313 struct wireless_dev *wdev,
15e47304 11314 u32 portid, u32 seq, int flags,
a538e2d5 11315 u32 cmd)
2a519311
JB		 11316{
11317 void *hdr;
11318
15e47304 11319 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11320 if (!hdr)
11321 return -1;
11322
9360ffd1 11323 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11324 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11325 wdev->netdev->ifindex)) ||
11326 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11327 goto nla_put_failure;
2a519311 11328
362a415d
JB		 11329 /* ignore errors and send incomplete event anyway */
11330 nl80211_add_scan_req(msg, rdev);
2a519311 11331
053c095a
JB		 11332 genlmsg_end(msg, hdr);
11333 return 0;
2a519311
JB		 11334
11335 nla_put_failure:
11336 genlmsg_cancel(msg, hdr);
11337 return -EMSGSIZE;
11338}
11339
807f8a8c
LC		 11340static int
11341nl80211_send_sched_scan_msg(struct sk_buff *msg,
11342 struct cfg80211_registered_device *rdev,
11343 struct net_device *netdev,
15e47304 11344 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11345{
11346 void *hdr;
11347
15e47304 11348 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11349 if (!hdr)
11350 return -1;
11351
9360ffd1
DM		 11352 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11353 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11354 goto nla_put_failure;
807f8a8c 11355
053c095a
JB		 11356 genlmsg_end(msg, hdr);
11357 return 0;
807f8a8c
LC		 11358
11359 nla_put_failure:
11360 genlmsg_cancel(msg, hdr);
11361 return -EMSGSIZE;
11362}
11363
a538e2d5 11364void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11365 struct wireless_dev *wdev)
a538e2d5
JB		 11366{
11367 struct sk_buff *msg;
11368
58050fce 11369 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11370 if (!msg)
11371 return;
11372
fd014284 11373 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11374 NL80211_CMD_TRIGGER_SCAN) < 0) {
11375 nlmsg_free(msg);
11376 return;
11377 }
11378
68eb5503 11379 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11380 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11381}
11382
f9d15d16
JB		 11383struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11384 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11385{
11386 struct sk_buff *msg;
11387
fd2120ca 11388 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11389 if (!msg)
f9d15d16 11390 return NULL;
2a519311 11391
fd014284 11392 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11393 aborted ? NL80211_CMD_SCAN_ABORTED :
11394 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11395 nlmsg_free(msg);
f9d15d16 11396 return NULL;
2a519311
JB		 11397 }
11398
f9d15d16 11399 return msg;
2a519311
JB		 11400}
11401
f9d15d16
JB		 11402void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11403 struct sk_buff *msg)
2a519311 11404{
2a519311
JB		 11405 if (!msg)
11406 return;
11407
68eb5503 11408 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11409 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11410}
11411
807f8a8c
LC		 11412void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11413 struct net_device *netdev)
11414{
11415 struct sk_buff *msg;
11416
11417 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11418 if (!msg)
11419 return;
11420
11421 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11422 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
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_SCAN, GFP_KERNEL);
807f8a8c
LC		 11429}
11430
11431void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11432 struct net_device *netdev, u32 cmd)
11433{
11434 struct sk_buff *msg;
11435
58050fce 11436 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11437 if (!msg)
11438 return;
11439
11440 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11441 nlmsg_free(msg);
11442 return;
11443 }
11444
68eb5503 11445 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11446 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11447}
11448
b0d7aa59
JD		 11449static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11450 struct regulatory_request *request)
73d54c9e 11451{
73d54c9e 11452 /* Userspace can always count this one always being set */
9360ffd1
DM		 11453 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11454 goto nla_put_failure;
11455
11456 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11457 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11458 NL80211_REGDOM_TYPE_WORLD))
11459 goto nla_put_failure;
11460 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11461 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11462 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11463 goto nla_put_failure;
11464 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11465 request->intersect) {
11466 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11467 NL80211_REGDOM_TYPE_INTERSECTION))
11468 goto nla_put_failure;
11469 } else {
11470 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11471 NL80211_REGDOM_TYPE_COUNTRY) ||
11472 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11473 request->alpha2))
11474 goto nla_put_failure;
11475 }
11476
ad30ca2c
AN		 11477 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11478 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11479
11480 if (wiphy &&
11481 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11482 goto nla_put_failure;
1bdd716c
AN		 11483
11484 if (wiphy &&
11485 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11486 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11487 goto nla_put_failure;
ad30ca2c 11488 }
73d54c9e 11489
b0d7aa59
JD		 11490 return true;
11491
11492nla_put_failure:
11493 return false;
11494}
11495
11496/*
11497 * This can happen on global regulatory changes or device specific settings
11498 * based on custom regulatory domains.
11499 */
11500void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11501 struct regulatory_request *request)
11502{
11503 struct sk_buff *msg;
11504 void *hdr;
11505
11506 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11507 if (!msg)
11508 return;
11509
11510 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11511 if (!hdr) {
11512 nlmsg_free(msg);
11513 return;
11514 }
11515
11516 if (nl80211_reg_change_event_fill(msg, request) == false)
11517 goto nla_put_failure;
11518
3b7b72ee 11519 genlmsg_end(msg, hdr);
73d54c9e 11520
bc43b28c 11521 rcu_read_lock();
68eb5503 11522 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11523 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11524 rcu_read_unlock();
73d54c9e
LR		 11525
11526 return;
11527
11528nla_put_failure:
11529 genlmsg_cancel(msg, hdr);
11530 nlmsg_free(msg);
11531}
11532
6039f6d2
JM		 11533static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11534 struct net_device *netdev,
11535 const u8 *buf, size_t len,
b0b6aa2c
EP		 11536 enum nl80211_commands cmd, gfp_t gfp,
11537 int uapsd_queues)
6039f6d2
JM		 11538{
11539 struct sk_buff *msg;
11540 void *hdr;
11541
e6d6e342 11542 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11543 if (!msg)
11544 return;
11545
11546 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11547 if (!hdr) {
11548 nlmsg_free(msg);
11549 return;
11550 }
11551
9360ffd1
DM		 11552 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11553 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11554 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11555 goto nla_put_failure;
6039f6d2 11556
b0b6aa2c
EP		 11557 if (uapsd_queues >= 0) {
11558 struct nlattr *nla_wmm =
11559 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11560 if (!nla_wmm)
11561 goto nla_put_failure;
11562
11563 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11564 uapsd_queues))
11565 goto nla_put_failure;
11566
11567 nla_nest_end(msg, nla_wmm);
11568 }
11569
3b7b72ee 11570 genlmsg_end(msg, hdr);
6039f6d2 11571
68eb5503 11572 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11573 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11574 return;
11575
11576 nla_put_failure:
11577 genlmsg_cancel(msg, hdr);
11578 nlmsg_free(msg);
11579}
11580
11581void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11582 struct net_device *netdev, const u8 *buf,
11583 size_t len, gfp_t gfp)
6039f6d2
JM		 11584{
11585 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11586 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11587}
11588
11589void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11590 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11591 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11592{
e6d6e342 11593 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11594 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11595}
11596
53b46b84 11597void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11598 struct net_device *netdev, const u8 *buf,
11599 size_t len, gfp_t gfp)
6039f6d2
JM		 11600{
11601 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11602 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11603}
11604
53b46b84
JM		 11605void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11606 struct net_device *netdev, const u8 *buf,
e6d6e342 11607 size_t len, gfp_t gfp)
6039f6d2
JM		 11608{
11609 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11610 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11611}
11612
6ff57cf8
JB		 11613void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11614 size_t len)
cf4e594e 11615{
947add36
JB		 11616 struct wireless_dev *wdev = dev->ieee80211_ptr;
11617 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11618 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11619 const struct ieee80211_mgmt *mgmt = (void *)buf;
11620 u32 cmd;
947add36 11621
6ff57cf8
JB		 11622 if (WARN_ON(len < 2))
11623 return;
cf4e594e 11624
6ff57cf8
JB		 11625 if (ieee80211_is_deauth(mgmt->frame_control))
11626 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11627 else
11628 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11629
6ff57cf8 11630 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11631 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11632}
6ff57cf8 11633EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11634
1b06bb40
LR		 11635static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11636 struct net_device *netdev, int cmd,
e6d6e342 11637 const u8 *addr, gfp_t gfp)
1965c853
JM		 11638{
11639 struct sk_buff *msg;
11640 void *hdr;
11641
e6d6e342 11642 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11643 if (!msg)
11644 return;
11645
11646 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11647 if (!hdr) {
11648 nlmsg_free(msg);
11649 return;
11650 }
11651
9360ffd1
DM		 11652 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11653 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11654 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11655 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11656 goto nla_put_failure;
1965c853 11657
3b7b72ee 11658 genlmsg_end(msg, hdr);
1965c853 11659
68eb5503 11660 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11661 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11662 return;
11663
11664 nla_put_failure:
11665 genlmsg_cancel(msg, hdr);
11666 nlmsg_free(msg);
11667}
11668
11669void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11670 struct net_device *netdev, const u8 *addr,
11671 gfp_t gfp)
1965c853
JM		 11672{
11673 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11674 addr, gfp);
1965c853
JM		 11675}
11676
11677void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11678 struct net_device *netdev, const u8 *addr,
11679 gfp_t gfp)
1965c853 11680{
e6d6e342
JB		 11681 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11682 addr, gfp);
1965c853
JM		 11683}
11684
b23aa676
SO		 11685void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11686 struct net_device *netdev, const u8 *bssid,
11687 const u8 *req_ie, size_t req_ie_len,
11688 const u8 *resp_ie, size_t resp_ie_len,
11689 u16 status, gfp_t gfp)
11690{
11691 struct sk_buff *msg;
11692 void *hdr;
11693
58050fce 11694 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11695 if (!msg)
11696 return;
11697
11698 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11699 if (!hdr) {
11700 nlmsg_free(msg);
11701 return;
11702 }
11703
9360ffd1
DM		 11704 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11705 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11706 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11707 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11708 (req_ie &&
11709 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11710 (resp_ie &&
11711 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11712 goto nla_put_failure;
b23aa676 11713
3b7b72ee 11714 genlmsg_end(msg, hdr);
b23aa676 11715
68eb5503 11716 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11717 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11718 return;
11719
11720 nla_put_failure:
11721 genlmsg_cancel(msg, hdr);
11722 nlmsg_free(msg);
11723
11724}
11725
11726void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11727 struct net_device *netdev, const u8 *bssid,
11728 const u8 *req_ie, size_t req_ie_len,
11729 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11730{
11731 struct sk_buff *msg;
11732 void *hdr;
11733
58050fce 11734 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11735 if (!msg)
11736 return;
11737
11738 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11739 if (!hdr) {
11740 nlmsg_free(msg);
11741 return;
11742 }
11743
9360ffd1
DM		 11744 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11745 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11746 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11747 (req_ie &&
11748 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11749 (resp_ie &&
11750 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11751 goto nla_put_failure;
b23aa676 11752
3b7b72ee 11753 genlmsg_end(msg, hdr);
b23aa676 11754
68eb5503 11755 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11756 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11757 return;
11758
11759 nla_put_failure:
11760 genlmsg_cancel(msg, hdr);
11761 nlmsg_free(msg);
11762
11763}
11764
11765void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11766 struct net_device *netdev, u16 reason,
667503dd 11767 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11768{
11769 struct sk_buff *msg;
11770 void *hdr;
11771
58050fce 11772 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11773 if (!msg)
11774 return;
11775
11776 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11777 if (!hdr) {
11778 nlmsg_free(msg);
11779 return;
11780 }
11781
9360ffd1
DM		 11782 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11783 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11784 (from_ap && reason &&
11785 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11786 (from_ap &&
11787 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11788 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11789 goto nla_put_failure;
b23aa676 11790
3b7b72ee 11791 genlmsg_end(msg, hdr);
b23aa676 11792
68eb5503 11793 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11794 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11795 return;
11796
11797 nla_put_failure:
11798 genlmsg_cancel(msg, hdr);
11799 nlmsg_free(msg);
11800
11801}
11802
04a773ad
JB		 11803void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11804 struct net_device *netdev, const u8 *bssid,
11805 gfp_t gfp)
11806{
11807 struct sk_buff *msg;
11808 void *hdr;
11809
fd2120ca 11810 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11811 if (!msg)
11812 return;
11813
11814 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11815 if (!hdr) {
11816 nlmsg_free(msg);
11817 return;
11818 }
11819
9360ffd1
DM		 11820 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11821 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11822 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11823 goto nla_put_failure;
04a773ad 11824
3b7b72ee 11825 genlmsg_end(msg, hdr);
04a773ad 11826
68eb5503 11827 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11828 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11829 return;
11830
11831 nla_put_failure:
11832 genlmsg_cancel(msg, hdr);
11833 nlmsg_free(msg);
11834}
11835
947add36
JB		 11836void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11837 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11838{
947add36 11839 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11840 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11841 struct sk_buff *msg;
11842 void *hdr;
11843
947add36
JB		 11844 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11845 return;
11846
11847 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11848
c93b5e71
JC		 11849 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11850 if (!msg)
11851 return;
11852
11853 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11854 if (!hdr) {
11855 nlmsg_free(msg);
11856 return;
11857 }
11858
9360ffd1 11859 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11860 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11861 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11862 (ie_len && ie &&
11863 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11864 goto nla_put_failure;
c93b5e71 11865
3b7b72ee 11866 genlmsg_end(msg, hdr);
c93b5e71 11867
68eb5503 11868 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11869 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11870 return;
11871
11872 nla_put_failure:
11873 genlmsg_cancel(msg, hdr);
11874 nlmsg_free(msg);
11875}
947add36 11876EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11877
a3b8b056
JM		 11878void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11879 struct net_device *netdev, const u8 *addr,
11880 enum nl80211_key_type key_type, int key_id,
e6d6e342 11881 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11882{
11883 struct sk_buff *msg;
11884 void *hdr;
11885
e6d6e342 11886 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11887 if (!msg)
11888 return;
11889
11890 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11891 if (!hdr) {
11892 nlmsg_free(msg);
11893 return;
11894 }
11895
9360ffd1
DM		 11896 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11897 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11898 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11899 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11900 (key_id != -1 &&
11901 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11902 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11903 goto nla_put_failure;
a3b8b056 11904
3b7b72ee 11905 genlmsg_end(msg, hdr);
a3b8b056 11906
68eb5503 11907 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11908 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11909 return;
11910
11911 nla_put_failure:
11912 genlmsg_cancel(msg, hdr);
11913 nlmsg_free(msg);
11914}
11915
6bad8766
LR		 11916void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11917 struct ieee80211_channel *channel_before,
11918 struct ieee80211_channel *channel_after)
11919{
11920 struct sk_buff *msg;
11921 void *hdr;
11922 struct nlattr *nl_freq;
11923
fd2120ca 11924 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11925 if (!msg)
11926 return;
11927
11928 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11929 if (!hdr) {
11930 nlmsg_free(msg);
11931 return;
11932 }
11933
11934 /*
11935 * Since we are applying the beacon hint to a wiphy we know its
11936 * wiphy_idx is valid
11937 */
9360ffd1
DM		 11938 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11939 goto nla_put_failure;
6bad8766
LR		 11940
11941 /* Before */
11942 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11943 if (!nl_freq)
11944 goto nla_put_failure;
cdc89b97 11945 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11946 goto nla_put_failure;
11947 nla_nest_end(msg, nl_freq);
11948
11949 /* After */
11950 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11951 if (!nl_freq)
11952 goto nla_put_failure;
cdc89b97 11953 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11954 goto nla_put_failure;
11955 nla_nest_end(msg, nl_freq);
11956
3b7b72ee 11957 genlmsg_end(msg, hdr);
6bad8766 11958
463d0183 11959 rcu_read_lock();
68eb5503 11960 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11961 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11962 rcu_read_unlock();
6bad8766
LR		 11963
11964 return;
11965
11966nla_put_failure:
11967 genlmsg_cancel(msg, hdr);
11968 nlmsg_free(msg);
11969}
11970
9588bbd5
JM		 11971static void nl80211_send_remain_on_chan_event(
11972 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11973 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11974 struct ieee80211_channel *chan,
9588bbd5
JM		 11975 unsigned int duration, gfp_t gfp)
11976{
11977 struct sk_buff *msg;
11978 void *hdr;
11979
11980 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11981 if (!msg)
11982 return;
11983
11984 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11985 if (!hdr) {
11986 nlmsg_free(msg);
11987 return;
11988 }
11989
9360ffd1 11990 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11991 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11992 wdev->netdev->ifindex)) ||
00f53350 11993 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11994 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11995 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11996 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11997 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11998 goto nla_put_failure;
9588bbd5 11999
9360ffd1
DM		 12000 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12001 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12002 goto nla_put_failure;
9588bbd5 12003
3b7b72ee 12004 genlmsg_end(msg, hdr);
9588bbd5 12005
68eb5503 12006 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12007 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12008 return;
12009
12010 nla_put_failure:
12011 genlmsg_cancel(msg, hdr);
12012 nlmsg_free(msg);
12013}
12014
947add36
JB		 12015void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12016 struct ieee80211_channel *chan,
12017 unsigned int duration, gfp_t gfp)
9588bbd5 12018{
947add36 12019 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12020 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12021
12022 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12023 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12024 rdev, wdev, cookie, chan,
42d97a59 12025 duration, gfp);
9588bbd5 12026}
947add36 12027EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12028
947add36
JB		 12029void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12030 struct ieee80211_channel *chan,
12031 gfp_t gfp)
9588bbd5 12032{
947add36 12033 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12034 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12035
12036 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12037 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12038 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12039}
947add36 12040EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12041
947add36
JB		 12042void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12043 struct station_info *sinfo, gfp_t gfp)
98b62183 12044{
947add36 12045 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12046 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12047 struct sk_buff *msg;
12048
947add36
JB		 12049 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12050
58050fce 12051 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12052 if (!msg)
12053 return;
12054
cf5ead82 12055 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12056 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12057 nlmsg_free(msg);
12058 return;
12059 }
12060
68eb5503 12061 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12062 NL80211_MCGRP_MLME, gfp);
98b62183 12063}
947add36 12064EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12065
cf5ead82
JB		 12066void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12067 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12068{
947add36 12069 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12070 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12071 struct sk_buff *msg;
cf5ead82
JB		 12072 struct station_info empty_sinfo = {};
12073
12074 if (!sinfo)
12075 sinfo = &empty_sinfo;
ec15e68b 12076
947add36
JB		 12077 trace_cfg80211_del_sta(dev, mac_addr);
12078
58050fce 12079 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12080 if (!msg)
12081 return;
12082
cf5ead82 12083 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12084 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12085 nlmsg_free(msg);
12086 return;
12087 }
12088
68eb5503 12089 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12090 NL80211_MCGRP_MLME, gfp);
ec15e68b 12091}
cf5ead82 12092EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12093
947add36
JB		 12094void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12095 enum nl80211_connect_failed_reason reason,
12096 gfp_t gfp)
ed44a951 12097{
947add36 12098 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12099 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12100 struct sk_buff *msg;
12101 void *hdr;
12102
12103 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12104 if (!msg)
12105 return;
12106
12107 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12108 if (!hdr) {
12109 nlmsg_free(msg);
12110 return;
12111 }
12112
12113 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12114 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12115 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12116 goto nla_put_failure;
12117
12118 genlmsg_end(msg, hdr);
12119
68eb5503 12120 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12121 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12122 return;
12123
12124 nla_put_failure:
12125 genlmsg_cancel(msg, hdr);
12126 nlmsg_free(msg);
12127}
947add36 12128EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12129
b92ab5d8
JB		 12130static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12131 const u8 *addr, gfp_t gfp)
28946da7
JB		 12132{
12133 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12134 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12135 struct sk_buff *msg;
12136 void *hdr;
15e47304 12137 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12138
15e47304 12139 if (!nlportid)
28946da7
JB		 12140 return false;
12141
12142 msg = nlmsg_new(100, gfp);
12143 if (!msg)
12144 return true;
12145
b92ab5d8 12146 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12147 if (!hdr) {
12148 nlmsg_free(msg);
12149 return true;
12150 }
12151
9360ffd1
DM		 12152 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12153 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12154 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12155 goto nla_put_failure;
28946da7 12156
9c90a9f6 12157 genlmsg_end(msg, hdr);
15e47304 12158 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12159 return true;
12160
12161 nla_put_failure:
12162 genlmsg_cancel(msg, hdr);
12163 nlmsg_free(msg);
12164 return true;
12165}
12166
947add36
JB		 12167bool cfg80211_rx_spurious_frame(struct net_device *dev,
12168 const u8 *addr, gfp_t gfp)
b92ab5d8 12169{
947add36
JB		 12170 struct wireless_dev *wdev = dev->ieee80211_ptr;
12171 bool ret;
12172
12173 trace_cfg80211_rx_spurious_frame(dev, addr);
12174
12175 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12176 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12177 trace_cfg80211_return_bool(false);
12178 return false;
12179 }
12180 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12181 addr, gfp);
12182 trace_cfg80211_return_bool(ret);
12183 return ret;
b92ab5d8 12184}
947add36 12185EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12186
947add36
JB		 12187bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12188 const u8 *addr, gfp_t gfp)
b92ab5d8 12189{
947add36
JB		 12190 struct wireless_dev *wdev = dev->ieee80211_ptr;
12191 bool ret;
12192
12193 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12194
12195 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12196 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12197 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12198 trace_cfg80211_return_bool(false);
12199 return false;
12200 }
12201 ret = __nl80211_unexpected_frame(dev,
12202 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12203 addr, gfp);
12204 trace_cfg80211_return_bool(ret);
12205 return ret;
b92ab5d8 12206}
947add36 12207EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12208
2e161f78 12209int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12210 struct wireless_dev *wdev, u32 nlportid,
804483e9 12211 int freq, int sig_dbm,
19504cf5 12212 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12213{
71bbc994 12214 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12215 struct sk_buff *msg;
12216 void *hdr;
026331c4
JM		 12217
12218 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12219 if (!msg)
12220 return -ENOMEM;
12221
2e161f78 12222 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12223 if (!hdr) {
12224 nlmsg_free(msg);
12225 return -ENOMEM;
12226 }
12227
9360ffd1 12228 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12229 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12230 netdev->ifindex)) ||
a838490b 12231 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12232 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12233 (sig_dbm &&
12234 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12235 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12236 (flags &&
12237 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12238 goto nla_put_failure;
026331c4 12239
3b7b72ee 12240 genlmsg_end(msg, hdr);
026331c4 12241
15e47304 12242 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12243
12244 nla_put_failure:
12245 genlmsg_cancel(msg, hdr);
12246 nlmsg_free(msg);
12247 return -ENOBUFS;
12248}
12249
947add36
JB		 12250void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12251 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12252{
947add36 12253 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12254 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12255 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12256 struct sk_buff *msg;
12257 void *hdr;
12258
947add36
JB		 12259 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12260
026331c4
JM		 12261 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12262 if (!msg)
12263 return;
12264
2e161f78 12265 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12266 if (!hdr) {
12267 nlmsg_free(msg);
12268 return;
12269 }
12270
9360ffd1 12271 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12272 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12273 netdev->ifindex)) ||
a838490b 12274 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12275 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12276 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12277 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12278 goto nla_put_failure;
026331c4 12279
3b7b72ee 12280 genlmsg_end(msg, hdr);
026331c4 12281
68eb5503 12282 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12283 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12284 return;
12285
12286 nla_put_failure:
12287 genlmsg_cancel(msg, hdr);
12288 nlmsg_free(msg);
12289}
947add36 12290EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12291
5b97f49d
JB		 12292static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12293 const char *mac, gfp_t gfp)
d6dc1a38 12294{
947add36 12295 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12296 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12297 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12298 void **cb;
947add36 12299
d6dc1a38 12300 if (!msg)
5b97f49d 12301 return NULL;
d6dc1a38 12302
5b97f49d
JB		 12303 cb = (void **)msg->cb;
12304
12305 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12306 if (!cb[0]) {
d6dc1a38 12307 nlmsg_free(msg);
5b97f49d 12308 return NULL;
d6dc1a38
JO		 12309 }
12310
9360ffd1 12311 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12312 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12313 goto nla_put_failure;
d6dc1a38 12314
5b97f49d 12315 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12316 goto nla_put_failure;
12317
5b97f49d
JB		 12318 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12319 if (!cb[1])
9360ffd1 12320 goto nla_put_failure;
d6dc1a38 12321
5b97f49d 12322 cb[2] = rdev;
d6dc1a38 12323
5b97f49d
JB		 12324 return msg;
12325 nla_put_failure:
12326 nlmsg_free(msg);
12327 return NULL;
12328}
12329
12330static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12331{
12332 void **cb = (void **)msg->cb;
12333 struct cfg80211_registered_device *rdev = cb[2];
12334
12335 nla_nest_end(msg, cb[1]);
12336 genlmsg_end(msg, cb[0]);
12337
12338 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12339
68eb5503 12340 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12341 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12342}
12343
12344void cfg80211_cqm_rssi_notify(struct net_device *dev,
12345 enum nl80211_cqm_rssi_threshold_event rssi_event,
12346 gfp_t gfp)
12347{
12348 struct sk_buff *msg;
12349
12350 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12351
98f03342
JB		 12352 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12353 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12354 return;
12355
5b97f49d
JB		 12356 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12357 if (!msg)
12358 return;
12359
12360 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12361 rssi_event))
12362 goto nla_put_failure;
12363
12364 cfg80211_send_cqm(msg, gfp);
12365
d6dc1a38
JO		 12366 return;
12367
12368 nla_put_failure:
d6dc1a38
JO		 12369 nlmsg_free(msg);
12370}
947add36 12371EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12372
5b97f49d
JB		 12373void cfg80211_cqm_txe_notify(struct net_device *dev,
12374 const u8 *peer, u32 num_packets,
12375 u32 rate, u32 intvl, gfp_t gfp)
12376{
12377 struct sk_buff *msg;
12378
12379 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12380 if (!msg)
12381 return;
12382
12383 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12384 goto nla_put_failure;
12385
12386 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12387 goto nla_put_failure;
12388
12389 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12390 goto nla_put_failure;
12391
12392 cfg80211_send_cqm(msg, gfp);
12393 return;
12394
12395 nla_put_failure:
12396 nlmsg_free(msg);
12397}
12398EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12399
12400void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12401 const u8 *peer, u32 num_packets, gfp_t gfp)
12402{
12403 struct sk_buff *msg;
12404
12405 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12406
12407 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12408 if (!msg)
12409 return;
12410
12411 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12412 goto nla_put_failure;
12413
12414 cfg80211_send_cqm(msg, gfp);
12415 return;
12416
12417 nla_put_failure:
12418 nlmsg_free(msg);
12419}
12420EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12421
98f03342
JB		 12422void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12423{
12424 struct sk_buff *msg;
12425
12426 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12427 if (!msg)
12428 return;
12429
12430 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12431 goto nla_put_failure;
12432
12433 cfg80211_send_cqm(msg, gfp);
12434 return;
12435
12436 nla_put_failure:
12437 nlmsg_free(msg);
12438}
12439EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12440
947add36
JB		 12441static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12442 struct net_device *netdev, const u8 *bssid,
12443 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12444{
12445 struct sk_buff *msg;
12446 struct nlattr *rekey_attr;
12447 void *hdr;
12448
58050fce 12449 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12450 if (!msg)
12451 return;
12452
12453 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12454 if (!hdr) {
12455 nlmsg_free(msg);
12456 return;
12457 }
12458
9360ffd1
DM		 12459 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12460 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12461 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12462 goto nla_put_failure;
e5497d76
JB		 12463
12464 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12465 if (!rekey_attr)
12466 goto nla_put_failure;
12467
9360ffd1
DM		 12468 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12469 NL80211_REPLAY_CTR_LEN, replay_ctr))
12470 goto nla_put_failure;
e5497d76
JB		 12471
12472 nla_nest_end(msg, rekey_attr);
12473
3b7b72ee 12474 genlmsg_end(msg, hdr);
e5497d76 12475
68eb5503 12476 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12477 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12478 return;
12479
12480 nla_put_failure:
12481 genlmsg_cancel(msg, hdr);
12482 nlmsg_free(msg);
12483}
12484
947add36
JB		 12485void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12486 const u8 *replay_ctr, gfp_t gfp)
12487{
12488 struct wireless_dev *wdev = dev->ieee80211_ptr;
12489 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12490 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12491
12492 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12493 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12494}
12495EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12496
12497static void
12498nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12499 struct net_device *netdev, int index,
12500 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12501{
12502 struct sk_buff *msg;
12503 struct nlattr *attr;
12504 void *hdr;
12505
58050fce 12506 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12507 if (!msg)
12508 return;
12509
12510 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12511 if (!hdr) {
12512 nlmsg_free(msg);
12513 return;
12514 }
12515
9360ffd1
DM		 12516 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12517 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12518 goto nla_put_failure;
c9df56b4
JM		 12519
12520 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12521 if (!attr)
12522 goto nla_put_failure;
12523
9360ffd1
DM		 12524 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12525 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12526 (preauth &&
12527 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12528 goto nla_put_failure;
c9df56b4
JM		 12529
12530 nla_nest_end(msg, attr);
12531
3b7b72ee 12532 genlmsg_end(msg, hdr);
c9df56b4 12533
68eb5503 12534 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12535 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12536 return;
12537
12538 nla_put_failure:
12539 genlmsg_cancel(msg, hdr);
12540 nlmsg_free(msg);
12541}
12542
947add36
JB		 12543void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12544 const u8 *bssid, bool preauth, gfp_t gfp)
12545{
12546 struct wireless_dev *wdev = dev->ieee80211_ptr;
12547 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12548 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12549
12550 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12551 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12552}
12553EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12554
12555static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12556 struct net_device *netdev,
12557 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12558 gfp_t gfp,
12559 enum nl80211_commands notif,
12560 u8 count)
5314526b
TP		 12561{
12562 struct sk_buff *msg;
12563 void *hdr;
12564
58050fce 12565 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12566 if (!msg)
12567 return;
12568
f8d7552e 12569 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12570 if (!hdr) {
12571 nlmsg_free(msg);
12572 return;
12573 }
12574
683b6d3b
JB		 12575 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12576 goto nla_put_failure;
12577
12578 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12579 goto nla_put_failure;
5314526b 12580
f8d7552e
LC		 12581 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12582 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12583 goto nla_put_failure;
12584
5314526b
TP		 12585 genlmsg_end(msg, hdr);
12586
68eb5503 12587 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12588 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12589 return;
12590
12591 nla_put_failure:
12592 genlmsg_cancel(msg, hdr);
12593 nlmsg_free(msg);
12594}
12595
947add36
JB		 12596void cfg80211_ch_switch_notify(struct net_device *dev,
12597 struct cfg80211_chan_def *chandef)
84f10708 12598{
947add36
JB		 12599 struct wireless_dev *wdev = dev->ieee80211_ptr;
12600 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12601 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12602
e487eaeb 12603 ASSERT_WDEV_LOCK(wdev);
947add36 12604
e487eaeb 12605 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12606
9e0e2961 12607 wdev->chandef = *chandef;
96f55f12 12608 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12609 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12610 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12611}
12612EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12613
f8d7552e
LC		 12614void cfg80211_ch_switch_started_notify(struct net_device *dev,
12615 struct cfg80211_chan_def *chandef,
12616 u8 count)
12617{
12618 struct wireless_dev *wdev = dev->ieee80211_ptr;
12619 struct wiphy *wiphy = wdev->wiphy;
12620 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12621
12622 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12623
12624 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12625 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12626}
12627EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12628
04f39047
SW		 12629void
12630nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12631 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12632 enum nl80211_radar_event event,
12633 struct net_device *netdev, gfp_t gfp)
12634{
12635 struct sk_buff *msg;
12636 void *hdr;
12637
12638 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12639 if (!msg)
12640 return;
12641
12642 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12643 if (!hdr) {
12644 nlmsg_free(msg);
12645 return;
12646 }
12647
12648 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12649 goto nla_put_failure;
12650
12651 /* NOP and radar events don't need a netdev parameter */
12652 if (netdev) {
12653 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12654
12655 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12656 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12657 goto nla_put_failure;
12658 }
12659
12660 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12661 goto nla_put_failure;
12662
12663 if (nl80211_send_chandef(msg, chandef))
12664 goto nla_put_failure;
12665
9c90a9f6 12666 genlmsg_end(msg, hdr);
04f39047 12667
68eb5503 12668 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12669 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12670 return;
12671
12672 nla_put_failure:
12673 genlmsg_cancel(msg, hdr);
12674 nlmsg_free(msg);
12675}
12676
7f6cf311
JB		 12677void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12678 u64 cookie, bool acked, gfp_t gfp)
12679{
12680 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12681 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12682 struct sk_buff *msg;
12683 void *hdr;
7f6cf311 12684
4ee3e063
BL		 12685 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12686
58050fce 12687 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12688
7f6cf311
JB		 12689 if (!msg)
12690 return;
12691
12692 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12693 if (!hdr) {
12694 nlmsg_free(msg);
12695 return;
12696 }
12697
9360ffd1
DM		 12698 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12699 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12700 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12701 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12702 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12703 goto nla_put_failure;
7f6cf311 12704
9c90a9f6 12705 genlmsg_end(msg, hdr);
7f6cf311 12706
68eb5503 12707 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12708 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12709 return;
12710
12711 nla_put_failure:
12712 genlmsg_cancel(msg, hdr);
12713 nlmsg_free(msg);
12714}
12715EXPORT_SYMBOL(cfg80211_probe_status);
12716
5e760230
JB		 12717void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12718 const u8 *frame, size_t len,
37c73b5f 12719 int freq, int sig_dbm)
5e760230 12720{
f26cbf40 12721 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12722 struct sk_buff *msg;
12723 void *hdr;
37c73b5f 12724 struct cfg80211_beacon_registration *reg;
5e760230 12725
4ee3e063
BL		 12726 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12727
37c73b5f
BG		 12728 spin_lock_bh(&rdev->beacon_registrations_lock);
12729 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12730 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12731 if (!msg) {
12732 spin_unlock_bh(&rdev->beacon_registrations_lock);
12733 return;
12734 }
5e760230 12735
37c73b5f
BG		 12736 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12737 if (!hdr)
12738 goto nla_put_failure;
5e760230 12739
37c73b5f
BG		 12740 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12741 (freq &&
12742 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12743 (sig_dbm &&
12744 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12745 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12746 goto nla_put_failure;
5e760230 12747
37c73b5f 12748 genlmsg_end(msg, hdr);
5e760230 12749
37c73b5f
BG		 12750 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12751 }
12752 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12753 return;
12754
12755 nla_put_failure:
37c73b5f
BG		 12756 spin_unlock_bh(&rdev->beacon_registrations_lock);
12757 if (hdr)
12758 genlmsg_cancel(msg, hdr);
5e760230
JB		 12759 nlmsg_free(msg);
12760}
12761EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12762
cd8f7cb4 12763#ifdef CONFIG_PM
8cd4d456
LC		 12764static int cfg80211_net_detect_results(struct sk_buff *msg,
12765 struct cfg80211_wowlan_wakeup *wakeup)
12766{
12767 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12768 struct nlattr *nl_results, *nl_match, *nl_freqs;
12769 int i, j;
12770
12771 nl_results = nla_nest_start(
12772 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12773 if (!nl_results)
12774 return -EMSGSIZE;
12775
12776 for (i = 0; i < nd->n_matches; i++) {
12777 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12778
12779 nl_match = nla_nest_start(msg, i);
12780 if (!nl_match)
12781 break;
12782
12783 /* The SSID attribute is optional in nl80211, but for
12784 * simplicity reasons it's always present in the
12785 * cfg80211 structure. If a driver can't pass the
12786 * SSID, that needs to be changed. A zero length SSID
12787 * is still a valid SSID (wildcard), so it cannot be
12788 * used for this purpose.
12789 */
12790 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12791 match->ssid.ssid)) {
12792 nla_nest_cancel(msg, nl_match);
12793 goto out;
12794 }
12795
12796 if (match->n_channels) {
12797 nl_freqs = nla_nest_start(
12798 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12799 if (!nl_freqs) {
12800 nla_nest_cancel(msg, nl_match);
12801 goto out;
12802 }
12803
12804 for (j = 0; j < match->n_channels; j++) {
5528fae8 12805 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 12806 nla_nest_cancel(msg, nl_freqs);
12807 nla_nest_cancel(msg, nl_match);
12808 goto out;
12809 }
12810 }
12811
12812 nla_nest_end(msg, nl_freqs);
12813 }
12814
12815 nla_nest_end(msg, nl_match);
12816 }
12817
12818out:
12819 nla_nest_end(msg, nl_results);
12820 return 0;
12821}
12822
cd8f7cb4
JB		 12823void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12824 struct cfg80211_wowlan_wakeup *wakeup,
12825 gfp_t gfp)
12826{
f26cbf40 12827 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12828 struct sk_buff *msg;
12829 void *hdr;
9c90a9f6 12830 int size = 200;
cd8f7cb4
JB		 12831
12832 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12833
12834 if (wakeup)
12835 size += wakeup->packet_present_len;
12836
12837 msg = nlmsg_new(size, gfp);
12838 if (!msg)
12839 return;
12840
12841 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12842 if (!hdr)
12843 goto free_msg;
12844
12845 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12846 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12847 goto free_msg;
12848
12849 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12850 wdev->netdev->ifindex))
12851 goto free_msg;
12852
12853 if (wakeup) {
12854 struct nlattr *reasons;
12855
12856 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12857 if (!reasons)
12858 goto free_msg;
cd8f7cb4
JB		 12859
12860 if (wakeup->disconnect &&
12861 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12862 goto free_msg;
12863 if (wakeup->magic_pkt &&
12864 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12865 goto free_msg;
12866 if (wakeup->gtk_rekey_failure &&
12867 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12868 goto free_msg;
12869 if (wakeup->eap_identity_req &&
12870 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12871 goto free_msg;
12872 if (wakeup->four_way_handshake &&
12873 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12874 goto free_msg;
12875 if (wakeup->rfkill_release &&
12876 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12877 goto free_msg;
12878
12879 if (wakeup->pattern_idx >= 0 &&
12880 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12881 wakeup->pattern_idx))
12882 goto free_msg;
12883
ae917c9f
JB		 12884 if (wakeup->tcp_match &&
12885 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12886 goto free_msg;
2a0e047e 12887
ae917c9f
JB		 12888 if (wakeup->tcp_connlost &&
12889 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12890 goto free_msg;
2a0e047e 12891
ae917c9f
JB		 12892 if (wakeup->tcp_nomoretokens &&
12893 nla_put_flag(msg,
12894 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12895 goto free_msg;
2a0e047e 12896
cd8f7cb4
JB		 12897 if (wakeup->packet) {
12898 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12899 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12900
12901 if (!wakeup->packet_80211) {
12902 pkt_attr =
12903 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12904 len_attr =
12905 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12906 }
12907
12908 if (wakeup->packet_len &&
12909 nla_put_u32(msg, len_attr, wakeup->packet_len))
12910 goto free_msg;
12911
12912 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12913 wakeup->packet))
12914 goto free_msg;
12915 }
12916
8cd4d456
LC		 12917 if (wakeup->net_detect &&
12918 cfg80211_net_detect_results(msg, wakeup))
12919 goto free_msg;
12920
cd8f7cb4
JB		 12921 nla_nest_end(msg, reasons);
12922 }
12923
9c90a9f6 12924 genlmsg_end(msg, hdr);
cd8f7cb4 12925
68eb5503 12926 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12927 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12928 return;
12929
12930 free_msg:
12931 nlmsg_free(msg);
12932}
12933EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12934#endif
12935
3475b094
JM		 12936void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12937 enum nl80211_tdls_operation oper,
12938 u16 reason_code, gfp_t gfp)
12939{
12940 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12941 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12942 struct sk_buff *msg;
12943 void *hdr;
3475b094
JM		 12944
12945 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12946 reason_code);
12947
12948 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12949 if (!msg)
12950 return;
12951
12952 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12953 if (!hdr) {
12954 nlmsg_free(msg);
12955 return;
12956 }
12957
12958 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12959 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12960 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12961 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12962 (reason_code > 0 &&
12963 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12964 goto nla_put_failure;
12965
9c90a9f6 12966 genlmsg_end(msg, hdr);
3475b094 12967
68eb5503 12968 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12969 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12970 return;
12971
12972 nla_put_failure:
12973 genlmsg_cancel(msg, hdr);
12974 nlmsg_free(msg);
12975}
12976EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12977
026331c4
JM		 12978static int nl80211_netlink_notify(struct notifier_block * nb,
12979 unsigned long state,
12980 void *_notify)
12981{
12982 struct netlink_notify *notify = _notify;
12983 struct cfg80211_registered_device *rdev;
12984 struct wireless_dev *wdev;
37c73b5f 12985 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12986
12987 if (state != NETLINK_URELEASE)
12988 return NOTIFY_DONE;
12989
12990 rcu_read_lock();
12991
5e760230 12992 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 12993 bool schedule_destroy_work = false;
93a1e86c
JR		 12994 bool schedule_scan_stop = false;
12995 struct cfg80211_sched_scan_request *sched_scan_req =
12996 rcu_dereference(rdev->sched_scan_req);
12997
12998 if (sched_scan_req && notify->portid &&
12999 sched_scan_req->owner_nlportid == notify->portid)
13000 schedule_scan_stop = true;
78f22b6a
JB		 13001
13002 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 13003 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13004
78f22b6a
JB		 13005 if (wdev->owner_nlportid == notify->portid)
13006 schedule_destroy_work = true;
13007 }
13008
37c73b5f
BG		 13009 spin_lock_bh(&rdev->beacon_registrations_lock);
13010 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13011 list) {
13012 if (reg->nlportid == notify->portid) {
13013 list_del(&reg->list);
13014 kfree(reg);
13015 break;
13016 }
13017 }
13018 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13019
13020 if (schedule_destroy_work) {
13021 struct cfg80211_iface_destroy *destroy;
13022
13023 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13024 if (destroy) {
13025 destroy->nlportid = notify->portid;
13026 spin_lock(&rdev->destroy_list_lock);
13027 list_add(&destroy->list, &rdev->destroy_list);
13028 spin_unlock(&rdev->destroy_list_lock);
13029 schedule_work(&rdev->destroy_work);
13030 }
93a1e86c
JR		 13031 } else if (schedule_scan_stop) {
13032 sched_scan_req->owner_nlportid = 0;
13033
13034 if (rdev->ops->sched_scan_stop &&
13035 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13036 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13037 }
5e760230 13038 }
026331c4
JM		 13039
13040 rcu_read_unlock();
13041
05050753
I		 13042 /*
13043 * It is possible that the user space process that is controlling the
13044 * indoor setting disappeared, so notify the regulatory core.
13045 */
13046 regulatory_netlink_notify(notify->portid);
6784c7db 13047 return NOTIFY_OK;
026331c4
JM		 13048}
13049
13050static struct notifier_block nl80211_netlink_notifier = {
13051 .notifier_call = nl80211_netlink_notify,
13052};
13053
355199e0
JM		 13054void cfg80211_ft_event(struct net_device *netdev,
13055 struct cfg80211_ft_event_params *ft_event)
13056{
13057 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13058 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13059 struct sk_buff *msg;
13060 void *hdr;
355199e0
JM		 13061
13062 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13063
13064 if (!ft_event->target_ap)
13065 return;
13066
13067 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13068 if (!msg)
13069 return;
13070
13071 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13072 if (!hdr)
13073 goto out;
355199e0 13074
ae917c9f
JB		 13075 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13076 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13077 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13078 goto out;
355199e0 13079
ae917c9f
JB		 13080 if (ft_event->ies &&
13081 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13082 goto out;
13083 if (ft_event->ric_ies &&
13084 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13085 ft_event->ric_ies))
13086 goto out;
355199e0 13087
9c90a9f6 13088 genlmsg_end(msg, hdr);
355199e0 13089
68eb5503 13090 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13091 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13092 return;
13093 out:
13094 nlmsg_free(msg);
355199e0
JM		 13095}
13096EXPORT_SYMBOL(cfg80211_ft_event);
13097
5de17984
AS		 13098void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13099{
13100 struct cfg80211_registered_device *rdev;
13101 struct sk_buff *msg;
13102 void *hdr;
13103 u32 nlportid;
13104
f26cbf40 13105 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13106 if (!rdev->crit_proto_nlportid)
13107 return;
13108
13109 nlportid = rdev->crit_proto_nlportid;
13110 rdev->crit_proto_nlportid = 0;
13111
13112 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13113 if (!msg)
13114 return;
13115
13116 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13117 if (!hdr)
13118 goto nla_put_failure;
13119
13120 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13121 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13122 goto nla_put_failure;
13123
13124 genlmsg_end(msg, hdr);
13125
13126 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13127 return;
13128
13129 nla_put_failure:
13130 if (hdr)
13131 genlmsg_cancel(msg, hdr);
13132 nlmsg_free(msg);
13133
13134}
13135EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13136
348baf0e
JB		 13137void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13138{
13139 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13140 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13141 struct sk_buff *msg;
13142 void *hdr;
13143
13144 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13145 if (!msg)
13146 return;
13147
13148 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13149 if (!hdr)
13150 goto out;
13151
13152 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13153 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13154 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13155 goto out;
13156
13157 genlmsg_end(msg, hdr);
13158
13159 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13160 NL80211_MCGRP_MLME, GFP_KERNEL);
13161 return;
13162 out:
13163 nlmsg_free(msg);
13164}
13165
55682965
JB		 13166/* initialisation/exit functions */
13167
13168int nl80211_init(void)
13169{
0d63cbb5 13170 int err;
55682965 13171
2a94fe48
JB		 13172 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13173 nl80211_mcgrps);
55682965
JB		 13174 if (err)
13175 return err;
13176
026331c4
JM		 13177 err = netlink_register_notifier(&nl80211_netlink_notifier);
13178 if (err)
13179 goto err_out;
13180
55682965
JB		 13181 return 0;
13182 err_out:
13183 genl_unregister_family(&nl80211_fam);
13184 return err;
13185}
13186
13187void nl80211_exit(void)
13188{
026331c4 13189 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13190 genl_unregister_family(&nl80211_fam);
13191}
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