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mac80211: fix divide by zero when NOA update
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
7bdbe400 6 * Copyright 2015 Intel Deutschland GmbH
55682965
JB		 7 */
8
9#include <linux/if.h>
10#include <linux/module.h>
11#include <linux/err.h>
5a0e3ad6 12#include <linux/slab.h>
55682965
JB		 13#include <linux/list.h>
14#include <linux/if_ether.h>
15#include <linux/ieee80211.h>
16#include <linux/nl80211.h>
17#include <linux/rtnetlink.h>
18#include <linux/netlink.h>
2a519311 19#include <linux/etherdevice.h>
463d0183 20#include <net/net_namespace.h>
55682965
JB		 21#include <net/genetlink.h>
22#include <net/cfg80211.h>
463d0183 23#include <net/sock.h>
2a0e047e 24#include <net/inet_connection_sock.h>
55682965
JB		 25#include "core.h"
26#include "nl80211.h"
b2e1b302 27#include "reg.h"
e35e4d28 28#include "rdev-ops.h"
55682965 29
5fb628e9
JM		 30static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
33 int cipher_limit);
34
f84f771d 35static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 36 struct genl_info *info);
f84f771d 37static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 38 struct genl_info *info);
39
55682965
JB		 40/* the netlink family */
41static struct genl_family nl80211_fam = {
fb4e1568
MH		 42 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
43 .name = NL80211_GENL_NAME, /* have users key off the name instead */
44 .hdrsize = 0, /* no private header */
45 .version = 1, /* no particular meaning now */
55682965 46 .maxattr = NL80211_ATTR_MAX,
463d0183 47 .netnsok = true,
4c476991
JB		 48 .pre_doit = nl80211_pre_doit,
49 .post_doit = nl80211_post_doit,
55682965
JB		 50};
51
2a94fe48
JB		 52/* multicast groups */
53enum nl80211_multicast_groups {
54 NL80211_MCGRP_CONFIG,
55 NL80211_MCGRP_SCAN,
56 NL80211_MCGRP_REGULATORY,
57 NL80211_MCGRP_MLME,
567ffc35 58 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 59 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
60};
61
62static const struct genl_multicast_group nl80211_mcgrps[] = {
71b836ec
JB		 63 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
64 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
65 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
66 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
67 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
2a94fe48 68#ifdef CONFIG_NL80211_TESTMODE
71b836ec 69 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 70#endif
71};
72
89a54e48
JB		 73/* returns ERR_PTR values */
74static struct wireless_dev *
75__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 76{
89a54e48
JB		 77 struct cfg80211_registered_device *rdev;
78 struct wireless_dev *result = NULL;
79 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
80 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
81 u64 wdev_id;
82 int wiphy_idx = -1;
83 int ifidx = -1;
55682965 84
5fe231e8 85 ASSERT_RTNL();
55682965 86
89a54e48
JB		 87 if (!have_ifidx && !have_wdev_id)
88 return ERR_PTR(-EINVAL);
55682965 89
89a54e48
JB		 90 if (have_ifidx)
91 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
92 if (have_wdev_id) {
93 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
94 wiphy_idx = wdev_id >> 32;
55682965
JB		 95 }
96
89a54e48
JB		 97 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
98 struct wireless_dev *wdev;
99
100 if (wiphy_net(&rdev->wiphy) != netns)
101 continue;
102
103 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
104 continue;
105
89a54e48
JB		 106 list_for_each_entry(wdev, &rdev->wdev_list, list) {
107 if (have_ifidx && wdev->netdev &&
108 wdev->netdev->ifindex == ifidx) {
109 result = wdev;
110 break;
111 }
112 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
113 result = wdev;
114 break;
115 }
116 }
89a54e48
JB		 117
118 if (result)
119 break;
120 }
121
122 if (result)
123 return result;
124 return ERR_PTR(-ENODEV);
55682965
JB		 125}
126
a9455408 127static struct cfg80211_registered_device *
878d9ec7 128__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 129{
7fee4778
JB		 130 struct cfg80211_registered_device *rdev = NULL, *tmp;
131 struct net_device *netdev;
a9455408 132
5fe231e8 133 ASSERT_RTNL();
a9455408 134
878d9ec7 135 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 136 !attrs[NL80211_ATTR_IFINDEX] &&
137 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 138 return ERR_PTR(-EINVAL);
139
878d9ec7 140 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 141 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 142 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 143
89a54e48
JB		 144 if (attrs[NL80211_ATTR_WDEV]) {
145 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
146 struct wireless_dev *wdev;
147 bool found = false;
148
149 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
150 if (tmp) {
151 /* make sure wdev exists */
89a54e48
JB		 152 list_for_each_entry(wdev, &tmp->wdev_list, list) {
153 if (wdev->identifier != (u32)wdev_id)
154 continue;
155 found = true;
156 break;
157 }
89a54e48
JB		 158
159 if (!found)
160 tmp = NULL;
161
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164 rdev = tmp;
165 }
166 }
167
878d9ec7
JB		 168 if (attrs[NL80211_ATTR_IFINDEX]) {
169 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 170 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 171 if (netdev) {
172 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 173 tmp = wiphy_to_rdev(
174 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 175 else
176 tmp = NULL;
177
7fee4778
JB		 178 /* not wireless device -- return error */
179 if (!tmp)
180 return ERR_PTR(-EINVAL);
181
182 /* mismatch -- return error */
183 if (rdev && tmp != rdev)
184 return ERR_PTR(-EINVAL);
185
186 rdev = tmp;
a9455408 187 }
a9455408 188 }
a9455408 189
4f7eff10
JB		 190 if (!rdev)
191 return ERR_PTR(-ENODEV);
a9455408 192
4f7eff10
JB		 193 if (netns != wiphy_net(&rdev->wiphy))
194 return ERR_PTR(-ENODEV);
195
196 return rdev;
a9455408
JB		 197}
198
199/*
200 * This function returns a pointer to the driver
201 * that the genl_info item that is passed refers to.
a9455408
JB		 202 *
203 * The result of this can be a PTR_ERR and hence must
204 * be checked with IS_ERR() for errors.
205 */
206static struct cfg80211_registered_device *
4f7eff10 207cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 208{
5fe231e8 209 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 210}
211
55682965 212/* policy for the attributes */
8cd4d456 213static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
55682965
JB		 214 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
215 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 216 .len = 20-1 },
31888487 217 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 218
72bdcf34 219 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 220 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 221 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
224
b9a5f8ca
JM		 225 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 229 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 230 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 231
232 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 235
e007b857
EP		 236 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
237 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 238
b9454e83 239 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 240 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
241 .len = WLAN_MAX_KEY_LEN },
242 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
243 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
244 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 245 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 246 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 247
248 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
249 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
250 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
251 .len = IEEE80211_MAX_DATA_LEN },
252 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 254 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
255 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
256 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
257 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
258 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 259 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 260 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 261 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 262 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 263 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 264 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 265
b2e1b302
LR		 266 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
267 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
268
9f1ba906
JM		 269 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 272 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
273 .len = NL80211_MAX_SUPP_RATES },
50b12f59 274 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 275
24bdd9f4 276 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 277 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 278
6c739419 279 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 280
281 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
282 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
283 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 284 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
285 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 286
287 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
288 .len = IEEE80211_MAX_SSID_LEN },
289 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
290 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 291 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 292 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 293 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 294 [NL80211_ATTR_STA_FLAGS2] = {
295 .len = sizeof(struct nl80211_sta_flag_update),
296 },
3f77316c 297 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 298 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
299 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 300 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
301 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
302 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 303 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 304 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 305 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
306 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 307 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
308 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 309 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 310 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
311 .len = IEEE80211_MAX_DATA_LEN },
312 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 313 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 314 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 315 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 316 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 317 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 319 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 320 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
321 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 322 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 323 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 324 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 325 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 326 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 327 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 328 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 329 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 330 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 331 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
332 .len = IEEE80211_MAX_DATA_LEN },
333 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 335 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 336 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 337 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 338 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
342 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 343 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 344 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 345 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
346 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 347 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 348 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
350 .len = NL80211_HT_CAPABILITY_LEN
351 },
1d9d9213 352 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 353 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 354 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 355 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 356 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 357 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 358 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 359 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 360 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
361 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 362 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
363 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 364 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
365 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 366 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 367 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
368 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
369 .len = NL80211_VHT_CAPABILITY_LEN,
370 },
355199e0
JM		 371 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
372 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
373 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 374 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 375 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
376 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
377 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 378 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
379 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 380 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
381 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 382 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 383 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 384 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 387 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
388 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 389 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
390 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 391 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
18e5ca65 392 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 393 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 394 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 395 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
396 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
397 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 398 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 399 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 400 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 401 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 402 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 403 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
55682965
JB		 404};
405
e31b8213 406/* policy for the key attributes */
b54452b0 407static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 408 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 409 [NL80211_KEY_IDX] = { .type = NLA_U8 },
410 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 411 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 412 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
413 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 414 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 415 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
416};
417
418/* policy for the key default flags */
419static const struct nla_policy
420nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
421 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
422 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 423};
424
ff1b6e69
JB		 425/* policy for WoWLAN attributes */
426static const struct nla_policy
427nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
428 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
431 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 432 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
433 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
435 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 436 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 437 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 438};
439
440static const struct nla_policy
441nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
442 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
443 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
444 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
445 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
446 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
447 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
448 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
449 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
450 },
451 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
452 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
453 },
454 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
455 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
456 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 457};
458
be29b99a
AK		 459/* policy for coalesce rule attributes */
460static const struct nla_policy
461nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
462 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
463 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
464 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
465};
466
e5497d76
JB		 467/* policy for GTK rekey offload attributes */
468static const struct nla_policy
469nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
470 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
471 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
472 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
473};
474
a1f1c21c
LC		 475static const struct nla_policy
476nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 477 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 478 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 479 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 480};
481
3b06d277
AS		 482static const struct nla_policy
483nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
484 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
485 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
486};
487
97990a06
JB		 488static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
489 struct netlink_callback *cb,
490 struct cfg80211_registered_device **rdev,
491 struct wireless_dev **wdev)
a043897a 492{
97990a06 493 int err;
a043897a 494
97990a06 495 rtnl_lock();
a043897a 496
97990a06
JB		 497 if (!cb->args[0]) {
498 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
499 nl80211_fam.attrbuf, nl80211_fam.maxattr,
500 nl80211_policy);
501 if (err)
502 goto out_unlock;
67748893 503
97990a06
JB		 504 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
505 nl80211_fam.attrbuf);
506 if (IS_ERR(*wdev)) {
507 err = PTR_ERR(*wdev);
508 goto out_unlock;
509 }
f26cbf40 510 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 511 /* 0 is the first index - add 1 to parse only once */
512 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 513 cb->args[1] = (*wdev)->identifier;
514 } else {
c319d50b
JB		 515 /* subtract the 1 again here */
516 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 517 struct wireless_dev *tmp;
67748893 518
97990a06
JB		 519 if (!wiphy) {
520 err = -ENODEV;
521 goto out_unlock;
522 }
f26cbf40 523 *rdev = wiphy_to_rdev(wiphy);
97990a06 524 *wdev = NULL;
67748893 525
97990a06
JB		 526 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
527 if (tmp->identifier == cb->args[1]) {
528 *wdev = tmp;
529 break;
530 }
531 }
67748893 532
97990a06
JB		 533 if (!*wdev) {
534 err = -ENODEV;
535 goto out_unlock;
536 }
67748893
JB		 537 }
538
67748893 539 return 0;
97990a06 540 out_unlock:
67748893
JB		 541 rtnl_unlock();
542 return err;
543}
544
97990a06 545static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 546{
67748893
JB		 547 rtnl_unlock();
548}
549
f4a11bb0
JB		 550/* IE validation */
551static bool is_valid_ie_attr(const struct nlattr *attr)
552{
553 const u8 *pos;
554 int len;
555
556 if (!attr)
557 return true;
558
559 pos = nla_data(attr);
560 len = nla_len(attr);
561
562 while (len) {
563 u8 elemlen;
564
565 if (len < 2)
566 return false;
567 len -= 2;
568
569 elemlen = pos[1];
570 if (elemlen > len)
571 return false;
572
573 len -= elemlen;
574 pos += 2 + elemlen;
575 }
576
577 return true;
578}
579
55682965 580/* message building helper */
15e47304 581static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 582 int flags, u8 cmd)
583{
584 /* since there is no private header just add the generic one */
15e47304 585 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 586}
587
5dab3b8a 588static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 589 struct ieee80211_channel *chan,
590 bool large)
5dab3b8a 591{
ea077c1c
RL		 592 /* Some channels must be completely excluded from the
593 * list to protect old user-space tools from breaking
594 */
595 if (!large && chan->flags &
596 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
597 return 0;
598
9360ffd1
DM		 599 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
600 chan->center_freq))
601 goto nla_put_failure;
5dab3b8a 602
9360ffd1
DM		 603 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
604 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
605 goto nla_put_failure;
8fe02e16
LR		 606 if (chan->flags & IEEE80211_CHAN_NO_IR) {
607 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
608 goto nla_put_failure;
609 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
610 goto nla_put_failure;
611 }
cdc89b97
JB		 612 if (chan->flags & IEEE80211_CHAN_RADAR) {
613 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
614 goto nla_put_failure;
615 if (large) {
616 u32 time;
617
618 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
619
620 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
621 chan->dfs_state))
622 goto nla_put_failure;
623 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
624 time))
625 goto nla_put_failure;
089027e5
JD		 626 if (nla_put_u32(msg,
627 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
628 chan->dfs_cac_ms))
629 goto nla_put_failure;
cdc89b97
JB		 630 }
631 }
5dab3b8a 632
fe1abafd
JB		 633 if (large) {
634 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
635 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
636 goto nla_put_failure;
637 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
638 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
639 goto nla_put_failure;
640 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
641 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
642 goto nla_put_failure;
643 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
644 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
645 goto nla_put_failure;
570dbde1
DS		 646 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
647 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
648 goto nla_put_failure;
06f207fc
AN		 649 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
650 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
570dbde1 651 goto nla_put_failure;
ea077c1c
RL		 652 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
653 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
654 goto nla_put_failure;
655 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
656 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
657 goto nla_put_failure;
fe1abafd
JB		 658 }
659
9360ffd1
DM		 660 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
661 DBM_TO_MBM(chan->max_power)))
662 goto nla_put_failure;
5dab3b8a
LR		 663
664 return 0;
665
666 nla_put_failure:
667 return -ENOBUFS;
668}
669
55682965
JB		 670/* netlink command implementations */
671
b9454e83
JB		 672struct key_parse {
673 struct key_params p;
674 int idx;
e31b8213 675 int type;
b9454e83 676 bool def, defmgmt;
dbd2fd65 677 bool def_uni, def_multi;
b9454e83
JB		 678};
679
680static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
681{
682 struct nlattr *tb[NL80211_KEY_MAX + 1];
683 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
684 nl80211_key_policy);
685 if (err)
686 return err;
687
688 k->def = !!tb[NL80211_KEY_DEFAULT];
689 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
690
dbd2fd65
JB		 691 if (k->def) {
692 k->def_uni = true;
693 k->def_multi = true;
694 }
695 if (k->defmgmt)
696 k->def_multi = true;
697
b9454e83
JB		 698 if (tb[NL80211_KEY_IDX])
699 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
700
701 if (tb[NL80211_KEY_DATA]) {
702 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
703 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
704 }
705
706 if (tb[NL80211_KEY_SEQ]) {
707 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
708 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
709 }
710
711 if (tb[NL80211_KEY_CIPHER])
712 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
713
e31b8213
JB		 714 if (tb[NL80211_KEY_TYPE]) {
715 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
716 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
717 return -EINVAL;
718 }
719
dbd2fd65
JB		 720 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
721 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 722 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
723 tb[NL80211_KEY_DEFAULT_TYPES],
724 nl80211_key_default_policy);
dbd2fd65
JB		 725 if (err)
726 return err;
727
728 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
729 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
730 }
731
b9454e83
JB		 732 return 0;
733}
734
735static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
736{
737 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
738 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
739 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
740 }
741
742 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
743 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
744 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
745 }
746
747 if (info->attrs[NL80211_ATTR_KEY_IDX])
748 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
749
750 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
751 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
752
753 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
754 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
755
dbd2fd65
JB		 756 if (k->def) {
757 k->def_uni = true;
758 k->def_multi = true;
759 }
760 if (k->defmgmt)
761 k->def_multi = true;
762
e31b8213
JB		 763 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
764 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
765 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
766 return -EINVAL;
767 }
768
dbd2fd65
JB		 769 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
770 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
771 int err = nla_parse_nested(
772 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
773 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
774 nl80211_key_default_policy);
775 if (err)
776 return err;
777
778 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
779 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
780 }
781
b9454e83
JB		 782 return 0;
783}
784
785static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
786{
787 int err;
788
789 memset(k, 0, sizeof(*k));
790 k->idx = -1;
e31b8213 791 k->type = -1;
b9454e83
JB		 792
793 if (info->attrs[NL80211_ATTR_KEY])
794 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
795 else
796 err = nl80211_parse_key_old(info, k);
797
798 if (err)
799 return err;
800
801 if (k->def && k->defmgmt)
802 return -EINVAL;
803
dbd2fd65
JB		 804 if (k->defmgmt) {
805 if (k->def_uni || !k->def_multi)
806 return -EINVAL;
807 }
808
b9454e83
JB		 809 if (k->idx != -1) {
810 if (k->defmgmt) {
811 if (k->idx < 4 || k->idx > 5)
812 return -EINVAL;
813 } else if (k->def) {
814 if (k->idx < 0 || k->idx > 3)
815 return -EINVAL;
816 } else {
817 if (k->idx < 0 || k->idx > 5)
818 return -EINVAL;
819 }
820 }
821
822 return 0;
823}
824
fffd0934
JB		 825static struct cfg80211_cached_keys *
826nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 827 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 828{
829 struct key_parse parse;
830 struct nlattr *key;
831 struct cfg80211_cached_keys *result;
832 int rem, err, def = 0;
833
834 result = kzalloc(sizeof(*result), GFP_KERNEL);
835 if (!result)
836 return ERR_PTR(-ENOMEM);
837
838 result->def = -1;
839 result->defmgmt = -1;
840
841 nla_for_each_nested(key, keys, rem) {
842 memset(&parse, 0, sizeof(parse));
843 parse.idx = -1;
844
845 err = nl80211_parse_key_new(key, &parse);
846 if (err)
847 goto error;
848 err = -EINVAL;
849 if (!parse.p.key)
850 goto error;
851 if (parse.idx < 0 || parse.idx > 4)
852 goto error;
853 if (parse.def) {
854 if (def)
855 goto error;
856 def = 1;
857 result->def = parse.idx;
dbd2fd65
JB		 858 if (!parse.def_uni || !parse.def_multi)
859 goto error;
fffd0934
JB		 860 } else if (parse.defmgmt)
861 goto error;
862 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 863 parse.idx, false, NULL);
fffd0934
JB		 864 if (err)
865 goto error;
866 result->params[parse.idx].cipher = parse.p.cipher;
867 result->params[parse.idx].key_len = parse.p.key_len;
868 result->params[parse.idx].key = result->data[parse.idx];
869 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 870
871 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
872 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
873 if (no_ht)
874 *no_ht = true;
875 }
fffd0934
JB		 876 }
877
878 return result;
879 error:
880 kfree(result);
881 return ERR_PTR(err);
882}
883
884static int nl80211_key_allowed(struct wireless_dev *wdev)
885{
886 ASSERT_WDEV_LOCK(wdev);
887
fffd0934
JB		 888 switch (wdev->iftype) {
889 case NL80211_IFTYPE_AP:
890 case NL80211_IFTYPE_AP_VLAN:
074ac8df 891 case NL80211_IFTYPE_P2P_GO:
ff973af7 892 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 893 break;
894 case NL80211_IFTYPE_ADHOC:
fffd0934 895 case NL80211_IFTYPE_STATION:
074ac8df 896 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 897 if (!wdev->current_bss)
fffd0934
JB		 898 return -ENOLINK;
899 break;
de4fcbad 900 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 901 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 902 case NL80211_IFTYPE_MONITOR:
903 case NL80211_IFTYPE_P2P_DEVICE:
904 case NL80211_IFTYPE_WDS:
905 case NUM_NL80211_IFTYPES:
fffd0934
JB		 906 return -EINVAL;
907 }
908
909 return 0;
910}
911
664834de
JM		 912static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
913 struct nlattr *tb)
914{
915 struct ieee80211_channel *chan;
916
917 if (tb == NULL)
918 return NULL;
919 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
920 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
921 return NULL;
922 return chan;
923}
924
7527a782
JB		 925static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
926{
927 struct nlattr *nl_modes = nla_nest_start(msg, attr);
928 int i;
929
930 if (!nl_modes)
931 goto nla_put_failure;
932
933 i = 0;
934 while (ifmodes) {
9360ffd1
DM		 935 if ((ifmodes & 1) && nla_put_flag(msg, i))
936 goto nla_put_failure;
7527a782
JB		 937 ifmodes >>= 1;
938 i++;
939 }
940
941 nla_nest_end(msg, nl_modes);
942 return 0;
943
944nla_put_failure:
945 return -ENOBUFS;
946}
947
948static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 949 struct sk_buff *msg,
950 bool large)
7527a782
JB		 951{
952 struct nlattr *nl_combis;
953 int i, j;
954
955 nl_combis = nla_nest_start(msg,
956 NL80211_ATTR_INTERFACE_COMBINATIONS);
957 if (!nl_combis)
958 goto nla_put_failure;
959
960 for (i = 0; i < wiphy->n_iface_combinations; i++) {
961 const struct ieee80211_iface_combination *c;
962 struct nlattr *nl_combi, *nl_limits;
963
964 c = &wiphy->iface_combinations[i];
965
966 nl_combi = nla_nest_start(msg, i + 1);
967 if (!nl_combi)
968 goto nla_put_failure;
969
970 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
971 if (!nl_limits)
972 goto nla_put_failure;
973
974 for (j = 0; j < c->n_limits; j++) {
975 struct nlattr *nl_limit;
976
977 nl_limit = nla_nest_start(msg, j + 1);
978 if (!nl_limit)
979 goto nla_put_failure;
9360ffd1
DM		 980 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
981 c->limits[j].max))
982 goto nla_put_failure;
7527a782
JB		 983 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
984 c->limits[j].types))
985 goto nla_put_failure;
986 nla_nest_end(msg, nl_limit);
987 }
988
989 nla_nest_end(msg, nl_limits);
990
9360ffd1
DM		 991 if (c->beacon_int_infra_match &&
992 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
993 goto nla_put_failure;
994 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
995 c->num_different_channels) ||
996 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
997 c->max_interfaces))
998 goto nla_put_failure;
cdc89b97 999 if (large &&
8c48b50a
FF		 1000 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1001 c->radar_detect_widths) ||
1002 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1003 c->radar_detect_regions)))
cdc89b97 1004 goto nla_put_failure;
7527a782
JB		 1005
1006 nla_nest_end(msg, nl_combi);
1007 }
1008
1009 nla_nest_end(msg, nl_combis);
1010
1011 return 0;
1012nla_put_failure:
1013 return -ENOBUFS;
1014}
1015
3713b4e3 1016#ifdef CONFIG_PM
b56cf720
JB		 1017static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1018 struct sk_buff *msg)
1019{
964dc9e2 1020 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1021 struct nlattr *nl_tcp;
1022
1023 if (!tcp)
1024 return 0;
1025
1026 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1027 if (!nl_tcp)
1028 return -ENOBUFS;
1029
1030 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1031 tcp->data_payload_max))
1032 return -ENOBUFS;
1033
1034 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1035 tcp->data_payload_max))
1036 return -ENOBUFS;
1037
1038 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1039 return -ENOBUFS;
1040
1041 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1042 sizeof(*tcp->tok), tcp->tok))
1043 return -ENOBUFS;
1044
1045 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1046 tcp->data_interval_max))
1047 return -ENOBUFS;
1048
1049 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1050 tcp->wake_payload_max))
1051 return -ENOBUFS;
1052
1053 nla_nest_end(msg, nl_tcp);
1054 return 0;
1055}
1056
3713b4e3 1057static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1058 struct cfg80211_registered_device *rdev,
b56cf720 1059 bool large)
55682965 1060{
3713b4e3 1061 struct nlattr *nl_wowlan;
55682965 1062
1b8ec87a 1063 if (!rdev->wiphy.wowlan)
3713b4e3 1064 return 0;
55682965 1065
3713b4e3
JB		 1066 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1067 if (!nl_wowlan)
1068 return -ENOBUFS;
9360ffd1 1069
1b8ec87a 1070 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1071 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1072 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1073 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1074 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1075 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1076 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1077 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1078 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1079 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1080 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1081 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1082 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1083 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1084 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1085 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1086 return -ENOBUFS;
9360ffd1 1087
1b8ec87a 1088 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1089 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1090 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1091 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1092 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1093 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1094 };
9360ffd1 1095
3713b4e3
JB		 1096 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1097 sizeof(pat), &pat))
1098 return -ENOBUFS;
1099 }
9360ffd1 1100
75453ccb
LC		 1101 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1102 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1103 rdev->wiphy.wowlan->max_nd_match_sets))
1104 return -ENOBUFS;
1105
1b8ec87a 1106 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1107 return -ENOBUFS;
1108
3713b4e3 1109 nla_nest_end(msg, nl_wowlan);
9360ffd1 1110
3713b4e3
JB		 1111 return 0;
1112}
1113#endif
9360ffd1 1114
be29b99a 1115static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1116 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1117{
1118 struct nl80211_coalesce_rule_support rule;
1119
1b8ec87a 1120 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1121 return 0;
1122
1b8ec87a
ZG		 1123 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1124 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1125 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1126 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1127 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1128 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1129
1130 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1131 return -ENOBUFS;
1132
1133 return 0;
1134}
1135
3713b4e3
JB		 1136static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1137 struct ieee80211_supported_band *sband)
1138{
1139 struct nlattr *nl_rates, *nl_rate;
1140 struct ieee80211_rate *rate;
1141 int i;
87bbbe22 1142
3713b4e3
JB		 1143 /* add HT info */
1144 if (sband->ht_cap.ht_supported &&
1145 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1146 sizeof(sband->ht_cap.mcs),
1147 &sband->ht_cap.mcs) ||
1148 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1149 sband->ht_cap.cap) ||
1150 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1151 sband->ht_cap.ampdu_factor) ||
1152 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1153 sband->ht_cap.ampdu_density)))
1154 return -ENOBUFS;
afe0cbf8 1155
3713b4e3
JB		 1156 /* add VHT info */
1157 if (sband->vht_cap.vht_supported &&
1158 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1159 sizeof(sband->vht_cap.vht_mcs),
1160 &sband->vht_cap.vht_mcs) ||
1161 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1162 sband->vht_cap.cap)))
1163 return -ENOBUFS;
f59ac048 1164
3713b4e3
JB		 1165 /* add bitrates */
1166 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1167 if (!nl_rates)
1168 return -ENOBUFS;
ee688b00 1169
3713b4e3
JB		 1170 for (i = 0; i < sband->n_bitrates; i++) {
1171 nl_rate = nla_nest_start(msg, i);
1172 if (!nl_rate)
1173 return -ENOBUFS;
ee688b00 1174
3713b4e3
JB		 1175 rate = &sband->bitrates[i];
1176 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1177 rate->bitrate))
1178 return -ENOBUFS;
1179 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1180 nla_put_flag(msg,
1181 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1182 return -ENOBUFS;
ee688b00 1183
3713b4e3
JB		 1184 nla_nest_end(msg, nl_rate);
1185 }
d51626df 1186
3713b4e3 1187 nla_nest_end(msg, nl_rates);
bf0c111e 1188
3713b4e3
JB		 1189 return 0;
1190}
ee688b00 1191
3713b4e3
JB		 1192static int
1193nl80211_send_mgmt_stypes(struct sk_buff *msg,
1194 const struct ieee80211_txrx_stypes *mgmt_stypes)
1195{
1196 u16 stypes;
1197 struct nlattr *nl_ftypes, *nl_ifs;
1198 enum nl80211_iftype ift;
1199 int i;
ee688b00 1200
3713b4e3
JB		 1201 if (!mgmt_stypes)
1202 return 0;
5dab3b8a 1203
3713b4e3
JB		 1204 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1205 if (!nl_ifs)
1206 return -ENOBUFS;
e2f367f2 1207
3713b4e3
JB		 1208 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1209 nl_ftypes = nla_nest_start(msg, ift);
1210 if (!nl_ftypes)
1211 return -ENOBUFS;
1212 i = 0;
1213 stypes = mgmt_stypes[ift].tx;
1214 while (stypes) {
1215 if ((stypes & 1) &&
1216 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1217 (i << 4) | IEEE80211_FTYPE_MGMT))
1218 return -ENOBUFS;
1219 stypes >>= 1;
1220 i++;
ee688b00 1221 }
3713b4e3
JB		 1222 nla_nest_end(msg, nl_ftypes);
1223 }
ee688b00 1224
3713b4e3 1225 nla_nest_end(msg, nl_ifs);
ee688b00 1226
3713b4e3
JB		 1227 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1228 if (!nl_ifs)
1229 return -ENOBUFS;
ee688b00 1230
3713b4e3
JB		 1231 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1232 nl_ftypes = nla_nest_start(msg, ift);
1233 if (!nl_ftypes)
1234 return -ENOBUFS;
1235 i = 0;
1236 stypes = mgmt_stypes[ift].rx;
1237 while (stypes) {
1238 if ((stypes & 1) &&
1239 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1240 (i << 4) | IEEE80211_FTYPE_MGMT))
1241 return -ENOBUFS;
1242 stypes >>= 1;
1243 i++;
1244 }
1245 nla_nest_end(msg, nl_ftypes);
1246 }
1247 nla_nest_end(msg, nl_ifs);
ee688b00 1248
3713b4e3
JB		 1249 return 0;
1250}
ee688b00 1251
86e8cf98
JB		 1252struct nl80211_dump_wiphy_state {
1253 s64 filter_wiphy;
1254 long start;
1255 long split_start, band_start, chan_start;
1256 bool split;
1257};
1258
1b8ec87a 1259static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1260 enum nl80211_commands cmd,
3713b4e3 1261 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1262 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1263{
1264 void *hdr;
1265 struct nlattr *nl_bands, *nl_band;
1266 struct nlattr *nl_freqs, *nl_freq;
1267 struct nlattr *nl_cmds;
1268 enum ieee80211_band band;
1269 struct ieee80211_channel *chan;
1270 int i;
1271 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1272 rdev->wiphy.mgmt_stypes;
fe1abafd 1273 u32 features;
ee688b00 1274
3bb20556 1275 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1276 if (!hdr)
1277 return -ENOBUFS;
ee688b00 1278
86e8cf98
JB		 1279 if (WARN_ON(!state))
1280 return -EINVAL;
ee688b00 1281
1b8ec87a 1282 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1283 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1284 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1285 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1286 cfg80211_rdev_list_generation))
8fdc621d
JB		 1287 goto nla_put_failure;
1288
3bb20556
JB		 1289 if (cmd != NL80211_CMD_NEW_WIPHY)
1290 goto finish;
1291
86e8cf98 1292 switch (state->split_start) {
3713b4e3
JB		 1293 case 0:
1294 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1295 rdev->wiphy.retry_short) ||
3713b4e3 1296 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1297 rdev->wiphy.retry_long) ||
3713b4e3 1298 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1299 rdev->wiphy.frag_threshold) ||
3713b4e3 1300 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1301 rdev->wiphy.rts_threshold) ||
3713b4e3 1302 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1303 rdev->wiphy.coverage_class) ||
3713b4e3 1304 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1305 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1306 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1307 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1308 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1309 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1310 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1311 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1312 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
3b06d277
AS		 1313 rdev->wiphy.max_match_sets) ||
1314 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1315 rdev->wiphy.max_sched_scan_plans) ||
1316 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1317 rdev->wiphy.max_sched_scan_plan_interval) ||
1318 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1319 rdev->wiphy.max_sched_scan_plan_iterations))
9360ffd1 1320 goto nla_put_failure;
3713b4e3 1321
1b8ec87a 1322 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1323 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1324 goto nla_put_failure;
1b8ec87a 1325 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1326 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1327 goto nla_put_failure;
1b8ec87a 1328 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1329 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1330 goto nla_put_failure;
1b8ec87a 1331 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1332 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1333 goto nla_put_failure;
1b8ec87a 1334 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1335 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1336 goto nla_put_failure;
1b8ec87a 1337 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1338 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1339 goto nla_put_failure;
86e8cf98
JB		 1340 state->split_start++;
1341 if (state->split)
3713b4e3
JB		 1342 break;
1343 case 1:
1344 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1345 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1346 rdev->wiphy.cipher_suites))
3713b4e3 1347 goto nla_put_failure;
4745fc09 1348
3713b4e3 1349 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1350 rdev->wiphy.max_num_pmkids))
3713b4e3 1351 goto nla_put_failure;
b23aa676 1352
1b8ec87a 1353 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1354 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1355 goto nla_put_failure;
b23aa676 1356
3713b4e3 1357 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1358 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1359 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1360 rdev->wiphy.available_antennas_rx))
9360ffd1 1361 goto nla_put_failure;
b23aa676 1362
1b8ec87a 1363 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1364 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1365 rdev->wiphy.probe_resp_offload))
3713b4e3 1366 goto nla_put_failure;
8fdc621d 1367
1b8ec87a
ZG		 1368 if ((rdev->wiphy.available_antennas_tx ||
1369 rdev->wiphy.available_antennas_rx) &&
1370 rdev->ops->get_antenna) {
3713b4e3
JB		 1371 u32 tx_ant = 0, rx_ant = 0;
1372 int res;
1b8ec87a 1373 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1374 if (!res) {
1375 if (nla_put_u32(msg,
1376 NL80211_ATTR_WIPHY_ANTENNA_TX,
1377 tx_ant) ||
1378 nla_put_u32(msg,
1379 NL80211_ATTR_WIPHY_ANTENNA_RX,
1380 rx_ant))
1381 goto nla_put_failure;
1382 }
1383 }
a293911d 1384
86e8cf98
JB		 1385 state->split_start++;
1386 if (state->split)
3713b4e3
JB		 1387 break;
1388 case 2:
1389 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1390 rdev->wiphy.interface_modes))
3713b4e3 1391 goto nla_put_failure;
86e8cf98
JB		 1392 state->split_start++;
1393 if (state->split)
3713b4e3
JB		 1394 break;
1395 case 3:
1396 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1397 if (!nl_bands)
1398 goto nla_put_failure;
f7ca38df 1399
86e8cf98
JB		 1400 for (band = state->band_start;
1401 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1402 struct ieee80211_supported_band *sband;
2e161f78 1403
1b8ec87a 1404 sband = rdev->wiphy.bands[band];
2e161f78 1405
3713b4e3
JB		 1406 if (!sband)
1407 continue;
1408
1409 nl_band = nla_nest_start(msg, band);
1410 if (!nl_band)
2e161f78 1411 goto nla_put_failure;
3713b4e3 1412
86e8cf98 1413 switch (state->chan_start) {
3713b4e3
JB		 1414 case 0:
1415 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1416 goto nla_put_failure;
86e8cf98
JB		 1417 state->chan_start++;
1418 if (state->split)
3713b4e3
JB		 1419 break;
1420 default:
1421 /* add frequencies */
1422 nl_freqs = nla_nest_start(
1423 msg, NL80211_BAND_ATTR_FREQS);
1424 if (!nl_freqs)
1425 goto nla_put_failure;
1426
86e8cf98 1427 for (i = state->chan_start - 1;
3713b4e3
JB		 1428 i < sband->n_channels;
1429 i++) {
1430 nl_freq = nla_nest_start(msg, i);
1431 if (!nl_freq)
1432 goto nla_put_failure;
1433
1434 chan = &sband->channels[i];
1435
86e8cf98
JB		 1436 if (nl80211_msg_put_channel(
1437 msg, chan,
1438 state->split))
3713b4e3
JB		 1439 goto nla_put_failure;
1440
1441 nla_nest_end(msg, nl_freq);
86e8cf98 1442 if (state->split)
3713b4e3
JB		 1443 break;
1444 }
1445 if (i < sband->n_channels)
86e8cf98 1446 state->chan_start = i + 2;
3713b4e3 1447 else
86e8cf98 1448 state->chan_start = 0;
3713b4e3
JB		 1449 nla_nest_end(msg, nl_freqs);
1450 }
1451
1452 nla_nest_end(msg, nl_band);
1453
86e8cf98 1454 if (state->split) {
3713b4e3 1455 /* start again here */
86e8cf98 1456 if (state->chan_start)
3713b4e3
JB		 1457 band--;
1458 break;
2e161f78 1459 }
2e161f78 1460 }
3713b4e3 1461 nla_nest_end(msg, nl_bands);
2e161f78 1462
3713b4e3 1463 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1464 state->band_start = band + 1;
3713b4e3 1465 else
86e8cf98 1466 state->band_start = 0;
74b70a4e 1467
3713b4e3 1468 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1469 if (state->band_start == 0 && state->chan_start == 0)
1470 state->split_start++;
1471 if (state->split)
3713b4e3
JB		 1472 break;
1473 case 4:
1474 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1475 if (!nl_cmds)
2e161f78
JB		 1476 goto nla_put_failure;
1477
3713b4e3
JB		 1478 i = 0;
1479#define CMD(op, n) \
1480 do { \
1b8ec87a 1481 if (rdev->ops->op) { \
3713b4e3
JB		 1482 i++; \
1483 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1484 goto nla_put_failure; \
1485 } \
1486 } while (0)
1487
1488 CMD(add_virtual_intf, NEW_INTERFACE);
1489 CMD(change_virtual_intf, SET_INTERFACE);
1490 CMD(add_key, NEW_KEY);
1491 CMD(start_ap, START_AP);
1492 CMD(add_station, NEW_STATION);
1493 CMD(add_mpath, NEW_MPATH);
1494 CMD(update_mesh_config, SET_MESH_CONFIG);
1495 CMD(change_bss, SET_BSS);
1496 CMD(auth, AUTHENTICATE);
1497 CMD(assoc, ASSOCIATE);
1498 CMD(deauth, DEAUTHENTICATE);
1499 CMD(disassoc, DISASSOCIATE);
1500 CMD(join_ibss, JOIN_IBSS);
1501 CMD(join_mesh, JOIN_MESH);
1502 CMD(set_pmksa, SET_PMKSA);
1503 CMD(del_pmksa, DEL_PMKSA);
1504 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1505 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1506 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1507 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1508 CMD(mgmt_tx, FRAME);
1509 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1510 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1511 i++;
1512 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1513 goto nla_put_failure;
2e161f78 1514 }
1b8ec87a
ZG		 1515 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1516 rdev->ops->join_mesh) {
3713b4e3
JB		 1517 i++;
1518 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1519 goto nla_put_failure;
1520 }
1521 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1522 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1523 CMD(tdls_mgmt, TDLS_MGMT);
1524 CMD(tdls_oper, TDLS_OPER);
1525 }
1b8ec87a 1526 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1527 CMD(sched_scan_start, START_SCHED_SCAN);
1528 CMD(probe_client, PROBE_CLIENT);
1529 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1530 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1531 i++;
1532 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1533 goto nla_put_failure;
1534 }
1535 CMD(start_p2p_device, START_P2P_DEVICE);
1536 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1537#ifdef CONFIG_NL80211_TESTMODE
1538 CMD(testmode_cmd, TESTMODE);
1539#endif
86e8cf98 1540 if (state->split) {
5de17984
AS		 1541 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1542 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1543 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1544 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1545 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1546 if (rdev->wiphy.features &
1547 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1548 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1549 }
02df00eb 1550 /* add into the if now */
3713b4e3 1551#undef CMD
ff1b6e69 1552
1b8ec87a 1553 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1554 i++;
1555 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1556 goto nla_put_failure;
ff1b6e69
JB		 1557 }
1558
1b8ec87a 1559 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1560 i++;
1561 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1562 goto nla_put_failure;
1563 }
1564
1565 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1566 state->split_start++;
1567 if (state->split)
3713b4e3
JB		 1568 break;
1569 case 5:
1b8ec87a
ZG		 1570 if (rdev->ops->remain_on_channel &&
1571 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1572 nla_put_u32(msg,
1573 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1574 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1575 goto nla_put_failure;
1576
1b8ec87a 1577 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1578 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1579 goto nla_put_failure;
1580
1581 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1582 goto nla_put_failure;
86e8cf98
JB		 1583 state->split_start++;
1584 if (state->split)
3713b4e3
JB		 1585 break;
1586 case 6:
1587#ifdef CONFIG_PM
1b8ec87a 1588 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1589 goto nla_put_failure;
86e8cf98
JB		 1590 state->split_start++;
1591 if (state->split)
3713b4e3
JB		 1592 break;
1593#else
86e8cf98 1594 state->split_start++;
dfb89c56 1595#endif
3713b4e3
JB		 1596 case 7:
1597 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1598 rdev->wiphy.software_iftypes))
3713b4e3 1599 goto nla_put_failure;
ff1b6e69 1600
1b8ec87a 1601 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1602 state->split))
3713b4e3 1603 goto nla_put_failure;
7527a782 1604
86e8cf98
JB		 1605 state->split_start++;
1606 if (state->split)
3713b4e3
JB		 1607 break;
1608 case 8:
1b8ec87a 1609 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1610 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1611 rdev->wiphy.ap_sme_capa))
3713b4e3 1612 goto nla_put_failure;
7527a782 1613
1b8ec87a 1614 features = rdev->wiphy.features;
fe1abafd
JB		 1615 /*
1616 * We can only add the per-channel limit information if the
1617 * dump is split, otherwise it makes it too big. Therefore
1618 * only advertise it in that case.
1619 */
86e8cf98 1620 if (state->split)
fe1abafd
JB		 1621 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1622 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1623 goto nla_put_failure;
562a7480 1624
1b8ec87a 1625 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1626 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1627 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1628 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1629 goto nla_put_failure;
1f074bd8 1630
1b8ec87a
ZG		 1631 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1632 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1633 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1634 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1635 goto nla_put_failure;
7e7c8926 1636
3713b4e3
JB		 1637 /*
1638 * Any information below this point is only available to
1639 * applications that can deal with it being split. This
1640 * helps ensure that newly added capabilities don't break
1641 * older tools by overrunning their buffers.
1642 *
1643 * We still increment split_start so that in the split
1644 * case we'll continue with more data in the next round,
1645 * but break unconditionally so unsplit data stops here.
1646 */
86e8cf98 1647 state->split_start++;
3713b4e3
JB		 1648 break;
1649 case 9:
1b8ec87a 1650 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1651 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1652 rdev->wiphy.extended_capabilities_len,
1653 rdev->wiphy.extended_capabilities) ||
fe1abafd 1654 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1655 rdev->wiphy.extended_capabilities_len,
1656 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1657 goto nla_put_failure;
a50df0c4 1658
1b8ec87a 1659 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1660 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1661 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1662 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1663 goto nla_put_failure;
1664
be29b99a
AK		 1665 state->split_start++;
1666 break;
1667 case 10:
1b8ec87a 1668 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1669 goto nla_put_failure;
1670
1b8ec87a 1671 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1672 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1673 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1674 goto nla_put_failure;
b43504cf 1675
1b8ec87a 1676 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1677 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1678 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1679 goto nla_put_failure;
1680
ad7e718c
JB		 1681 state->split_start++;
1682 break;
1683 case 11:
1b8ec87a 1684 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1685 const struct nl80211_vendor_cmd_info *info;
1686 struct nlattr *nested;
1687
1688 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1689 if (!nested)
1690 goto nla_put_failure;
1691
1b8ec87a
ZG		 1692 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1693 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1694 if (nla_put(msg, i + 1, sizeof(*info), info))
1695 goto nla_put_failure;
1696 }
1697 nla_nest_end(msg, nested);
1698 }
1699
1b8ec87a 1700 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1701 const struct nl80211_vendor_cmd_info *info;
1702 struct nlattr *nested;
ad7e718c 1703
567ffc35
JB		 1704 nested = nla_nest_start(msg,
1705 NL80211_ATTR_VENDOR_EVENTS);
1706 if (!nested)
ad7e718c 1707 goto nla_put_failure;
567ffc35 1708
1b8ec87a
ZG		 1709 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1710 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1711 if (nla_put(msg, i + 1, sizeof(*info), info))
1712 goto nla_put_failure;
1713 }
1714 nla_nest_end(msg, nested);
1715 }
9a774c78
AO		 1716 state->split_start++;
1717 break;
1718 case 12:
1719 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1720 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1721 rdev->wiphy.max_num_csa_counters))
1722 goto nla_put_failure;
01e0daa4 1723
1bdd716c
AN		 1724 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1725 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1726 goto nla_put_failure;
1727
d75bb06b
GKS		 1728 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1729 sizeof(rdev->wiphy.ext_features),
1730 rdev->wiphy.ext_features))
1731 goto nla_put_failure;
1732
3713b4e3 1733 /* done */
86e8cf98 1734 state->split_start = 0;
3713b4e3
JB		 1735 break;
1736 }
3bb20556 1737 finish:
053c095a
JB		 1738 genlmsg_end(msg, hdr);
1739 return 0;
55682965
JB		 1740
1741 nla_put_failure:
bc3ed28c
TG		 1742 genlmsg_cancel(msg, hdr);
1743 return -EMSGSIZE;
55682965
JB		 1744}
1745
86e8cf98
JB		 1746static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1747 struct netlink_callback *cb,
1748 struct nl80211_dump_wiphy_state *state)
1749{
1750 struct nlattr **tb = nl80211_fam.attrbuf;
1751 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1752 tb, nl80211_fam.maxattr, nl80211_policy);
1753 /* ignore parse errors for backward compatibility */
1754 if (ret)
1755 return 0;
1756
1757 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1758 if (tb[NL80211_ATTR_WIPHY])
1759 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1760 if (tb[NL80211_ATTR_WDEV])
1761 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1762 if (tb[NL80211_ATTR_IFINDEX]) {
1763 struct net_device *netdev;
1764 struct cfg80211_registered_device *rdev;
1765 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1766
7f2b8562 1767 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1768 if (!netdev)
1769 return -ENODEV;
1770 if (netdev->ieee80211_ptr) {
f26cbf40 1771 rdev = wiphy_to_rdev(
86e8cf98
JB		 1772 netdev->ieee80211_ptr->wiphy);
1773 state->filter_wiphy = rdev->wiphy_idx;
1774 }
86e8cf98
JB		 1775 }
1776
1777 return 0;
1778}
1779
55682965
JB		 1780static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1781{
645e77de 1782 int idx = 0, ret;
86e8cf98 1783 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1784 struct cfg80211_registered_device *rdev;
3a5a423b 1785
5fe231e8 1786 rtnl_lock();
86e8cf98
JB		 1787 if (!state) {
1788 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1789 if (!state) {
1790 rtnl_unlock();
86e8cf98 1791 return -ENOMEM;
3713b4e3 1792 }
86e8cf98
JB		 1793 state->filter_wiphy = -1;
1794 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1795 if (ret) {
1796 kfree(state);
1797 rtnl_unlock();
1798 return ret;
3713b4e3 1799 }
86e8cf98 1800 cb->args[0] = (long)state;
3713b4e3
JB		 1801 }
1802
1b8ec87a
ZG		 1803 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1804 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1805 continue;
86e8cf98 1806 if (++idx <= state->start)
55682965 1807 continue;
86e8cf98 1808 if (state->filter_wiphy != -1 &&
1b8ec87a 1809 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1810 continue;
1811 /* attempt to fit multiple wiphy data chunks into the skb */
1812 do {
3bb20556
JB		 1813 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1814 skb,
3713b4e3
JB		 1815 NETLINK_CB(cb->skb).portid,
1816 cb->nlh->nlmsg_seq,
86e8cf98 1817 NLM_F_MULTI, state);
3713b4e3
JB		 1818 if (ret < 0) {
1819 /*
1820 * If sending the wiphy data didn't fit (ENOBUFS
1821 * or EMSGSIZE returned), this SKB is still
1822 * empty (so it's not too big because another
1823 * wiphy dataset is already in the skb) and
1824 * we've not tried to adjust the dump allocation
1825 * yet ... then adjust the alloc size to be
1826 * bigger, and return 1 but with the empty skb.
1827 * This results in an empty message being RX'ed
1828 * in userspace, but that is ignored.
1829 *
1830 * We can then retry with the larger buffer.
1831 */
1832 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1833 !skb->len && !state->split &&
3713b4e3
JB		 1834 cb->min_dump_alloc < 4096) {
1835 cb->min_dump_alloc = 4096;
f12cb289 1836 state->split_start = 0;
d98cae64 1837 rtnl_unlock();
3713b4e3
JB		 1838 return 1;
1839 }
1840 idx--;
1841 break;
645e77de 1842 }
86e8cf98 1843 } while (state->split_start > 0);
3713b4e3 1844 break;
55682965 1845 }
5fe231e8 1846 rtnl_unlock();
55682965 1847
86e8cf98 1848 state->start = idx;
55682965
JB		 1849
1850 return skb->len;
1851}
1852
86e8cf98
JB		 1853static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1854{
1855 kfree((void *)cb->args[0]);
1856 return 0;
1857}
1858
55682965
JB		 1859static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1860{
1861 struct sk_buff *msg;
1b8ec87a 1862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1863 struct nl80211_dump_wiphy_state state = {};
55682965 1864
645e77de 1865 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1866 if (!msg)
4c476991 1867 return -ENOMEM;
55682965 1868
3bb20556
JB		 1869 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1870 info->snd_portid, info->snd_seq, 0,
86e8cf98 1871 &state) < 0) {
4c476991
JB		 1872 nlmsg_free(msg);
1873 return -ENOBUFS;
1874 }
55682965 1875
134e6375 1876 return genlmsg_reply(msg, info);
55682965
JB		 1877}
1878
31888487
JM		 1879static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1880 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1881 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1882 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1883 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1884 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1885};
1886
1887static int parse_txq_params(struct nlattr *tb[],
1888 struct ieee80211_txq_params *txq_params)
1889{
a3304b0a 1890 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1891 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1892 !tb[NL80211_TXQ_ATTR_AIFS])
1893 return -EINVAL;
1894
a3304b0a 1895 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1896 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1897 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1898 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1899 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1900
a3304b0a
JB		 1901 if (txq_params->ac >= NL80211_NUM_ACS)
1902 return -EINVAL;
1903
31888487
JM		 1904 return 0;
1905}
1906
f444de05
JB		 1907static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1908{
1909 /*
cc1d2806
JB		 1910 * You can only set the channel explicitly for WDS interfaces,
1911 * all others have their channel managed via their respective
1912 * "establish a connection" command (connect, join, ...)
1913 *
1914 * For AP/GO and mesh mode, the channel can be set with the
1915 * channel userspace API, but is only stored and passed to the
1916 * low-level driver when the AP starts or the mesh is joined.
1917 * This is for backward compatibility, userspace can also give
1918 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1919 *
1920 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1921 * whatever else is going on, so they have their own special
1922 * operation to set the monitor channel if possible.
f444de05
JB		 1923 */
1924 return !wdev ||
1925 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1926 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1927 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1928 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1929}
1930
683b6d3b
JB		 1931static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1932 struct genl_info *info,
1933 struct cfg80211_chan_def *chandef)
1934{
dbeca2ea 1935 u32 control_freq;
683b6d3b
JB		 1936
1937 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1938 return -EINVAL;
1939
1940 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1941
1942 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1943 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1944 chandef->center_freq1 = control_freq;
1945 chandef->center_freq2 = 0;
683b6d3b
JB		 1946
1947 /* Primary channel not allowed */
1948 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1949 return -EINVAL;
1950
3d9d1d66
JB		 1951 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1952 enum nl80211_channel_type chantype;
1953
1954 chantype = nla_get_u32(
1955 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1956
1957 switch (chantype) {
1958 case NL80211_CHAN_NO_HT:
1959 case NL80211_CHAN_HT20:
1960 case NL80211_CHAN_HT40PLUS:
1961 case NL80211_CHAN_HT40MINUS:
1962 cfg80211_chandef_create(chandef, chandef->chan,
1963 chantype);
1964 break;
1965 default:
1966 return -EINVAL;
1967 }
1968 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1969 chandef->width =
1970 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1971 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1972 chandef->center_freq1 =
1973 nla_get_u32(
1974 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1975 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1976 chandef->center_freq2 =
1977 nla_get_u32(
1978 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1979 }
1980
9f5e8f6e 1981 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1982 return -EINVAL;
1983
9f5e8f6e
JB		 1984 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1985 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1986 return -EINVAL;
1987
2f301ab2
SW		 1988 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1989 chandef->width == NL80211_CHAN_WIDTH_10) &&
1990 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1991 return -EINVAL;
1992
683b6d3b
JB		 1993 return 0;
1994}
1995
f444de05 1996static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1997 struct net_device *dev,
f444de05
JB		 1998 struct genl_info *info)
1999{
683b6d3b 2000 struct cfg80211_chan_def chandef;
f444de05 2001 int result;
e8c9bd5b 2002 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 2003 struct wireless_dev *wdev = NULL;
e8c9bd5b 2004
e16821bc
JM		 2005 if (dev)
2006 wdev = dev->ieee80211_ptr;
f444de05
JB		 2007 if (!nl80211_can_set_dev_channel(wdev))
2008 return -EOPNOTSUPP;
e16821bc
JM		 2009 if (wdev)
2010 iftype = wdev->iftype;
f444de05 2011
683b6d3b
JB		 2012 result = nl80211_parse_chandef(rdev, info, &chandef);
2013 if (result)
2014 return result;
f444de05 2015
e8c9bd5b 2016 switch (iftype) {
aa430da4
JB		 2017 case NL80211_IFTYPE_AP:
2018 case NL80211_IFTYPE_P2P_GO:
923b352f
AN		 2019 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2020 iftype)) {
aa430da4
JB		 2021 result = -EINVAL;
2022 break;
2023 }
e16821bc
JM		 2024 if (wdev->beacon_interval) {
2025 if (!dev || !rdev->ops->set_ap_chanwidth ||
2026 !(rdev->wiphy.features &
2027 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2028 result = -EBUSY;
2029 break;
2030 }
2031
2032 /* Only allow dynamic channel width changes */
2033 if (chandef.chan != wdev->preset_chandef.chan) {
2034 result = -EBUSY;
2035 break;
2036 }
2037 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2038 if (result)
2039 break;
2040 }
683b6d3b 2041 wdev->preset_chandef = chandef;
aa430da4
JB		 2042 result = 0;
2043 break;
cc1d2806 2044 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2045 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2046 break;
e8c9bd5b 2047 case NL80211_IFTYPE_MONITOR:
683b6d3b 2048 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2049 break;
aa430da4 2050 default:
e8c9bd5b 2051 result = -EINVAL;
f444de05 2052 }
f444de05
JB		 2053
2054 return result;
2055}
2056
2057static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2058{
4c476991
JB		 2059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2060 struct net_device *netdev = info->user_ptr[1];
f444de05 2061
e16821bc 2062 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2063}
2064
e8347eba
BJ		 2065static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2066{
43b19952
JB		 2067 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2068 struct net_device *dev = info->user_ptr[1];
2069 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2070 const u8 *bssid;
e8347eba
BJ		 2071
2072 if (!info->attrs[NL80211_ATTR_MAC])
2073 return -EINVAL;
2074
43b19952
JB		 2075 if (netif_running(dev))
2076 return -EBUSY;
e8347eba 2077
43b19952
JB		 2078 if (!rdev->ops->set_wds_peer)
2079 return -EOPNOTSUPP;
e8347eba 2080
43b19952
JB		 2081 if (wdev->iftype != NL80211_IFTYPE_WDS)
2082 return -EOPNOTSUPP;
e8347eba
BJ		 2083
2084 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2085 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2086}
2087
2088
55682965
JB		 2089static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2090{
2091 struct cfg80211_registered_device *rdev;
f444de05
JB		 2092 struct net_device *netdev = NULL;
2093 struct wireless_dev *wdev;
a1e567c8 2094 int result = 0, rem_txq_params = 0;
31888487 2095 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2096 u32 changed;
2097 u8 retry_short = 0, retry_long = 0;
2098 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2099 u8 coverage_class = 0;
55682965 2100
5fe231e8
JB		 2101 ASSERT_RTNL();
2102
f444de05
JB		 2103 /*
2104 * Try to find the wiphy and netdev. Normally this
2105 * function shouldn't need the netdev, but this is
2106 * done for backward compatibility -- previously
2107 * setting the channel was done per wiphy, but now
2108 * it is per netdev. Previous userland like hostapd
2109 * also passed a netdev to set_wiphy, so that it is
2110 * possible to let that go to the right netdev!
2111 */
4bbf4d56 2112
f444de05
JB		 2113 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2114 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2115
7f2b8562 2116 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2117 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2118 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2119 else
f444de05 2120 netdev = NULL;
4bbf4d56
JB		 2121 }
2122
f444de05 2123 if (!netdev) {
878d9ec7
JB		 2124 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2125 info->attrs);
5fe231e8 2126 if (IS_ERR(rdev))
4c476991 2127 return PTR_ERR(rdev);
f444de05
JB		 2128 wdev = NULL;
2129 netdev = NULL;
2130 result = 0;
71fe96bf 2131 } else
f444de05 2132 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2133
2134 /*
2135 * end workaround code, by now the rdev is available
2136 * and locked, and wdev may or may not be NULL.
2137 */
4bbf4d56
JB		 2138
2139 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2140 result = cfg80211_dev_rename(
2141 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2142
4bbf4d56 2143 if (result)
7f2b8562 2144 return result;
31888487
JM		 2145
2146 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2147 struct ieee80211_txq_params txq_params;
2148 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2149
7f2b8562
YX		 2150 if (!rdev->ops->set_txq_params)
2151 return -EOPNOTSUPP;
31888487 2152
7f2b8562
YX		 2153 if (!netdev)
2154 return -EINVAL;
f70f01c2 2155
133a3ff2 2156 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2157 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2158 return -EINVAL;
133a3ff2 2159
7f2b8562
YX		 2160 if (!netif_running(netdev))
2161 return -ENETDOWN;
2b5f8b0b 2162
31888487
JM		 2163 nla_for_each_nested(nl_txq_params,
2164 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2165 rem_txq_params) {
ae811e21
JB		 2166 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2167 nla_data(nl_txq_params),
2168 nla_len(nl_txq_params),
2169 txq_params_policy);
2170 if (result)
2171 return result;
31888487
JM		 2172 result = parse_txq_params(tb, &txq_params);
2173 if (result)
7f2b8562 2174 return result;
31888487 2175
e35e4d28
HG		 2176 result = rdev_set_txq_params(rdev, netdev,
2177 &txq_params);
31888487 2178 if (result)
7f2b8562 2179 return result;
31888487
JM		 2180 }
2181 }
55682965 2182
72bdcf34 2183 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2184 result = __nl80211_set_channel(
2185 rdev,
2186 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2187 info);
72bdcf34 2188 if (result)
7f2b8562 2189 return result;
72bdcf34
JM		 2190 }
2191
98d2ff8b 2192 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2193 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2194 enum nl80211_tx_power_setting type;
2195 int idx, mbm = 0;
2196
c8442118
JB		 2197 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2198 txp_wdev = NULL;
2199
7f2b8562
YX		 2200 if (!rdev->ops->set_tx_power)
2201 return -EOPNOTSUPP;
98d2ff8b
JO		 2202
2203 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2204 type = nla_get_u32(info->attrs[idx]);
2205
2206 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2207 (type != NL80211_TX_POWER_AUTOMATIC))
2208 return -EINVAL;
98d2ff8b
JO		 2209
2210 if (type != NL80211_TX_POWER_AUTOMATIC) {
2211 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2212 mbm = nla_get_u32(info->attrs[idx]);
2213 }
2214
c8442118 2215 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2216 if (result)
7f2b8562 2217 return result;
98d2ff8b
JO		 2218 }
2219
afe0cbf8
BR		 2220 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2221 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2222 u32 tx_ant, rx_ant;
7f531e03
BR		 2223 if ((!rdev->wiphy.available_antennas_tx &&
2224 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2225 !rdev->ops->set_antenna)
2226 return -EOPNOTSUPP;
afe0cbf8
BR		 2227
2228 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2229 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2230
a7ffac95 2231 /* reject antenna configurations which don't match the
7f531e03
BR		 2232 * available antenna masks, except for the "all" mask */
2233 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2234 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2235 return -EINVAL;
a7ffac95 2236
7f531e03
BR		 2237 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2238 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2239
e35e4d28 2240 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2241 if (result)
7f2b8562 2242 return result;
afe0cbf8
BR		 2243 }
2244
b9a5f8ca
JM		 2245 changed = 0;
2246
2247 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2248 retry_short = nla_get_u8(
2249 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2250 if (retry_short == 0)
2251 return -EINVAL;
2252
b9a5f8ca
JM		 2253 changed |= WIPHY_PARAM_RETRY_SHORT;
2254 }
2255
2256 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2257 retry_long = nla_get_u8(
2258 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2259 if (retry_long == 0)
2260 return -EINVAL;
2261
b9a5f8ca
JM		 2262 changed |= WIPHY_PARAM_RETRY_LONG;
2263 }
2264
2265 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2266 frag_threshold = nla_get_u32(
2267 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2268 if (frag_threshold < 256)
2269 return -EINVAL;
2270
b9a5f8ca
JM		 2271 if (frag_threshold != (u32) -1) {
2272 /*
2273 * Fragments (apart from the last one) are required to
2274 * have even length. Make the fragmentation code
2275 * simpler by stripping LSB should someone try to use
2276 * odd threshold value.
2277 */
2278 frag_threshold &= ~0x1;
2279 }
2280 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2281 }
2282
2283 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2284 rts_threshold = nla_get_u32(
2285 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2286 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2287 }
2288
81077e82 2289 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2290 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2291 return -EINVAL;
2292
81077e82
LT		 2293 coverage_class = nla_get_u8(
2294 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2295 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2296 }
2297
3057dbfd
LB		 2298 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2299 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2300 return -EOPNOTSUPP;
2301
2302 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2303 }
2304
b9a5f8ca
JM		 2305 if (changed) {
2306 u8 old_retry_short, old_retry_long;
2307 u32 old_frag_threshold, old_rts_threshold;
81077e82 2308 u8 old_coverage_class;
b9a5f8ca 2309
7f2b8562
YX		 2310 if (!rdev->ops->set_wiphy_params)
2311 return -EOPNOTSUPP;
b9a5f8ca
JM		 2312
2313 old_retry_short = rdev->wiphy.retry_short;
2314 old_retry_long = rdev->wiphy.retry_long;
2315 old_frag_threshold = rdev->wiphy.frag_threshold;
2316 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2317 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2318
2319 if (changed & WIPHY_PARAM_RETRY_SHORT)
2320 rdev->wiphy.retry_short = retry_short;
2321 if (changed & WIPHY_PARAM_RETRY_LONG)
2322 rdev->wiphy.retry_long = retry_long;
2323 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2324 rdev->wiphy.frag_threshold = frag_threshold;
2325 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2326 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2327 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2328 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2329
e35e4d28 2330 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2331 if (result) {
2332 rdev->wiphy.retry_short = old_retry_short;
2333 rdev->wiphy.retry_long = old_retry_long;
2334 rdev->wiphy.frag_threshold = old_frag_threshold;
2335 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2336 rdev->wiphy.coverage_class = old_coverage_class;
9189ee31 2337 return result;
b9a5f8ca
JM		 2338 }
2339 }
7f2b8562 2340 return 0;
55682965
JB		 2341}
2342
71bbc994
JB		 2343static inline u64 wdev_id(struct wireless_dev *wdev)
2344{
2345 return (u64)wdev->identifier |
f26cbf40 2346 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2347}
55682965 2348
683b6d3b 2349static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2350 const struct cfg80211_chan_def *chandef)
683b6d3b 2351{
601555cd
JB		 2352 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2353 return -EINVAL;
3d9d1d66 2354
683b6d3b
JB		 2355 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2356 chandef->chan->center_freq))
2357 return -ENOBUFS;
3d9d1d66
JB		 2358 switch (chandef->width) {
2359 case NL80211_CHAN_WIDTH_20_NOHT:
2360 case NL80211_CHAN_WIDTH_20:
2361 case NL80211_CHAN_WIDTH_40:
2362 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2363 cfg80211_get_chandef_type(chandef)))
2364 return -ENOBUFS;
2365 break;
2366 default:
2367 break;
2368 }
2369 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2370 return -ENOBUFS;
2371 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2372 return -ENOBUFS;
2373 if (chandef->center_freq2 &&
2374 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2375 return -ENOBUFS;
2376 return 0;
2377}
2378
15e47304 2379static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2380 struct cfg80211_registered_device *rdev,
8f894be2 2381 struct wireless_dev *wdev, bool removal)
55682965 2382{
72fb2abc 2383 struct net_device *dev = wdev->netdev;
8f894be2 2384 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2385 void *hdr;
2386
8f894be2
TB		 2387 if (removal)
2388 cmd = NL80211_CMD_DEL_INTERFACE;
2389
2390 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2391 if (!hdr)
2392 return -1;
2393
72fb2abc
JB		 2394 if (dev &&
2395 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2396 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2397 goto nla_put_failure;
2398
2399 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2400 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2401 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2402 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2403 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2404 rdev->devlist_generation ^
2405 (cfg80211_rdev_list_generation << 2)))
2406 goto nla_put_failure;
f5ea9120 2407
5b7ccaf3 2408 if (rdev->ops->get_channel) {
683b6d3b
JB		 2409 int ret;
2410 struct cfg80211_chan_def chandef;
2411
2412 ret = rdev_get_channel(rdev, wdev, &chandef);
2413 if (ret == 0) {
2414 if (nl80211_send_chandef(msg, &chandef))
2415 goto nla_put_failure;
2416 }
d91df0e3
PF		 2417 }
2418
d55d0d59
RM		 2419 if (rdev->ops->get_tx_power) {
2420 int dbm, ret;
2421
2422 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2423 if (ret == 0 &&
2424 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2425 DBM_TO_MBM(dbm)))
2426 goto nla_put_failure;
2427 }
2428
b84e7a05
AQ		 2429 if (wdev->ssid_len) {
2430 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2431 goto nla_put_failure;
2432 }
2433
053c095a
JB		 2434 genlmsg_end(msg, hdr);
2435 return 0;
55682965
JB		 2436
2437 nla_put_failure:
bc3ed28c
TG		 2438 genlmsg_cancel(msg, hdr);
2439 return -EMSGSIZE;
55682965
JB		 2440}
2441
2442static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2443{
2444 int wp_idx = 0;
2445 int if_idx = 0;
2446 int wp_start = cb->args[0];
2447 int if_start = cb->args[1];
f5ea9120 2448 struct cfg80211_registered_device *rdev;
55682965
JB		 2449 struct wireless_dev *wdev;
2450
5fe231e8 2451 rtnl_lock();
f5ea9120
JB		 2452 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2453 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2454 continue;
bba95fef
JB		 2455 if (wp_idx < wp_start) {
2456 wp_idx++;
55682965 2457 continue;
bba95fef 2458 }
55682965
JB		 2459 if_idx = 0;
2460
89a54e48 2461 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2462 if (if_idx < if_start) {
2463 if_idx++;
55682965 2464 continue;
bba95fef 2465 }
15e47304 2466 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2467 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2468 rdev, wdev, false) < 0) {
bba95fef
JB		 2469 goto out;
2470 }
2471 if_idx++;
55682965 2472 }
bba95fef
JB		 2473
2474 wp_idx++;
55682965 2475 }
bba95fef 2476 out:
5fe231e8 2477 rtnl_unlock();
55682965
JB		 2478
2479 cb->args[0] = wp_idx;
2480 cb->args[1] = if_idx;
2481
2482 return skb->len;
2483}
2484
2485static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2486{
2487 struct sk_buff *msg;
1b8ec87a 2488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2489 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2490
fd2120ca 2491 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2492 if (!msg)
4c476991 2493 return -ENOMEM;
55682965 2494
15e47304 2495 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2496 rdev, wdev, false) < 0) {
4c476991
JB		 2497 nlmsg_free(msg);
2498 return -ENOBUFS;
2499 }
55682965 2500
134e6375 2501 return genlmsg_reply(msg, info);
55682965
JB		 2502}
2503
66f7ac50
MW		 2504static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2505 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2506 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2507 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2508 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2509 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2510 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2511};
2512
2513static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2514{
2515 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2516 int flag;
2517
2518 *mntrflags = 0;
2519
2520 if (!nla)
2521 return -EINVAL;
2522
2523 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2524 nla, mntr_flags_policy))
2525 return -EINVAL;
2526
2527 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2528 if (flags[flag])
2529 *mntrflags |= (1<<flag);
2530
2531 return 0;
2532}
2533
9bc383de 2534static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2535 struct net_device *netdev, u8 use_4addr,
2536 enum nl80211_iftype iftype)
9bc383de 2537{
ad4bb6f8 2538 if (!use_4addr) {
f350a0a8 2539 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2540 return -EBUSY;
9bc383de 2541 return 0;
ad4bb6f8 2542 }
9bc383de
JB		 2543
2544 switch (iftype) {
2545 case NL80211_IFTYPE_AP_VLAN:
2546 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2547 return 0;
2548 break;
2549 case NL80211_IFTYPE_STATION:
2550 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2551 return 0;
2552 break;
2553 default:
2554 break;
2555 }
2556
2557 return -EOPNOTSUPP;
2558}
2559
55682965
JB		 2560static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2561{
4c476991 2562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2563 struct vif_params params;
e36d56b6 2564 int err;
04a773ad 2565 enum nl80211_iftype otype, ntype;
4c476991 2566 struct net_device *dev = info->user_ptr[1];
92ffe055 2567 u32 _flags, *flags = NULL;
ac7f9cfa 2568 bool change = false;
55682965 2569
2ec600d6
LCC		 2570 memset(&params, 0, sizeof(params));
2571
04a773ad 2572 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2573
723b038d 2574 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2575 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2576 if (otype != ntype)
ac7f9cfa 2577 change = true;
4c476991
JB		 2578 if (ntype > NL80211_IFTYPE_MAX)
2579 return -EINVAL;
723b038d
JB		 2580 }
2581
92ffe055 2582 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2583 struct wireless_dev *wdev = dev->ieee80211_ptr;
2584
4c476991
JB		 2585 if (ntype != NL80211_IFTYPE_MESH_POINT)
2586 return -EINVAL;
29cbe68c
JB		 2587 if (netif_running(dev))
2588 return -EBUSY;
2589
2590 wdev_lock(wdev);
2591 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2592 IEEE80211_MAX_MESH_ID_LEN);
2593 wdev->mesh_id_up_len =
2594 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2595 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2596 wdev->mesh_id_up_len);
2597 wdev_unlock(wdev);
2ec600d6
LCC		 2598 }
2599
8b787643
FF		 2600 if (info->attrs[NL80211_ATTR_4ADDR]) {
2601 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2602 change = true;
ad4bb6f8 2603 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2604 if (err)
4c476991 2605 return err;
8b787643
FF		 2606 } else {
2607 params.use_4addr = -1;
2608 }
2609
92ffe055 2610 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2611 if (ntype != NL80211_IFTYPE_MONITOR)
2612 return -EINVAL;
92ffe055
JB		 2613 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2614 &_flags);
ac7f9cfa 2615 if (err)
4c476991 2616 return err;
ac7f9cfa
JB		 2617
2618 flags = &_flags;
2619 change = true;
92ffe055 2620 }
3b85875a 2621
18003297 2622 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2623 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2624 return -EOPNOTSUPP;
2625
ac7f9cfa 2626 if (change)
3d54d255 2627 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2628 else
2629 err = 0;
60719ffd 2630
9bc383de
JB		 2631 if (!err && params.use_4addr != -1)
2632 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2633
55682965
JB		 2634 return err;
2635}
2636
2637static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2638{
4c476991 2639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2640 struct vif_params params;
84efbb84 2641 struct wireless_dev *wdev;
8f894be2 2642 struct sk_buff *msg, *event;
55682965
JB		 2643 int err;
2644 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2645 u32 flags;
55682965 2646
78f22b6a
JB		 2647 /* to avoid failing a new interface creation due to pending removal */
2648 cfg80211_destroy_ifaces(rdev);
2649
2ec600d6
LCC		 2650 memset(&params, 0, sizeof(params));
2651
55682965
JB		 2652 if (!info->attrs[NL80211_ATTR_IFNAME])
2653 return -EINVAL;
2654
2655 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2656 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2657 if (type > NL80211_IFTYPE_MAX)
2658 return -EINVAL;
2659 }
2660
79c97e97 2661 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2662 !(rdev->wiphy.interface_modes & (1 << type)))
2663 return -EOPNOTSUPP;
55682965 2664
e8f479b1
BG		 2665 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2666 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2667 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2668 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2669 ETH_ALEN);
2670 if (!is_valid_ether_addr(params.macaddr))
2671 return -EADDRNOTAVAIL;
2672 }
2673
9bc383de 2674 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2675 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2676 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2677 if (err)
4c476991 2678 return err;
9bc383de 2679 }
8b787643 2680
66f7ac50
MW		 2681 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2682 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2683 &flags);
e057d3c3 2684
18003297 2685 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2686 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2687 return -EOPNOTSUPP;
2688
a18c7192
JB		 2689 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2690 if (!msg)
2691 return -ENOMEM;
2692
e35e4d28
HG		 2693 wdev = rdev_add_virtual_intf(rdev,
2694 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
6bab2e19
TG		 2695 NET_NAME_USER, type, err ? NULL : &flags,
2696 &params);
d687cbb7
RM		 2697 if (WARN_ON(!wdev)) {
2698 nlmsg_free(msg);
2699 return -EPROTO;
2700 } else if (IS_ERR(wdev)) {
1c90f9d4 2701 nlmsg_free(msg);
84efbb84 2702 return PTR_ERR(wdev);
1c90f9d4 2703 }
2ec600d6 2704
18e5ca65 2705 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2706 wdev->owner_nlportid = info->snd_portid;
2707
98104fde
JB		 2708 switch (type) {
2709 case NL80211_IFTYPE_MESH_POINT:
2710 if (!info->attrs[NL80211_ATTR_MESH_ID])
2711 break;
29cbe68c
JB		 2712 wdev_lock(wdev);
2713 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2714 IEEE80211_MAX_MESH_ID_LEN);
2715 wdev->mesh_id_up_len =
2716 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2717 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2718 wdev->mesh_id_up_len);
2719 wdev_unlock(wdev);
98104fde
JB		 2720 break;
2721 case NL80211_IFTYPE_P2P_DEVICE:
2722 /*
2723 * P2P Device doesn't have a netdev, so doesn't go
2724 * through the netdev notifier and must be added here
2725 */
2726 mutex_init(&wdev->mtx);
2727 INIT_LIST_HEAD(&wdev->event_list);
2728 spin_lock_init(&wdev->event_lock);
2729 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2730 spin_lock_init(&wdev->mgmt_registrations_lock);
2731
98104fde
JB		 2732 wdev->identifier = ++rdev->wdev_id;
2733 list_add_rcu(&wdev->list, &rdev->wdev_list);
2734 rdev->devlist_generation++;
98104fde
JB		 2735 break;
2736 default:
2737 break;
29cbe68c
JB		 2738 }
2739
15e47304 2740 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2741 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2742 nlmsg_free(msg);
2743 return -ENOBUFS;
2744 }
2745
8f894be2
TB		 2746 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2747 if (event) {
2748 if (nl80211_send_iface(event, 0, 0, 0,
2749 rdev, wdev, false) < 0) {
2750 nlmsg_free(event);
2751 goto out;
2752 }
2753
2754 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2755 event, 0, NL80211_MCGRP_CONFIG,
2756 GFP_KERNEL);
2757 }
2758
2759out:
1c90f9d4 2760 return genlmsg_reply(msg, info);
55682965
JB		 2761}
2762
2763static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2764{
4c476991 2765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2766 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2767 struct sk_buff *msg;
2768 int status;
55682965 2769
4c476991
JB		 2770 if (!rdev->ops->del_virtual_intf)
2771 return -EOPNOTSUPP;
55682965 2772
8f894be2
TB		 2773 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2774 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2775 nlmsg_free(msg);
2776 msg = NULL;
2777 }
2778
84efbb84
JB		 2779 /*
2780 * If we remove a wireless device without a netdev then clear
2781 * user_ptr[1] so that nl80211_post_doit won't dereference it
2782 * to check if it needs to do dev_put(). Otherwise it crashes
2783 * since the wdev has been freed, unlike with a netdev where
2784 * we need the dev_put() for the netdev to really be freed.
2785 */
2786 if (!wdev->netdev)
2787 info->user_ptr[1] = NULL;
2788
8f894be2
TB		 2789 status = rdev_del_virtual_intf(rdev, wdev);
2790 if (status >= 0 && msg)
2791 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2792 msg, 0, NL80211_MCGRP_CONFIG,
2793 GFP_KERNEL);
2794 else
2795 nlmsg_free(msg);
2796
2797 return status;
55682965
JB		 2798}
2799
1d9d9213
SW		 2800static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2801{
2802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2803 struct net_device *dev = info->user_ptr[1];
2804 u16 noack_map;
2805
2806 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2807 return -EINVAL;
2808
2809 if (!rdev->ops->set_noack_map)
2810 return -EOPNOTSUPP;
2811
2812 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2813
e35e4d28 2814 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2815}
2816
41ade00f
JB		 2817struct get_key_cookie {
2818 struct sk_buff *msg;
2819 int error;
b9454e83 2820 int idx;
41ade00f
JB		 2821};
2822
2823static void get_key_callback(void *c, struct key_params *params)
2824{
b9454e83 2825 struct nlattr *key;
41ade00f
JB		 2826 struct get_key_cookie *cookie = c;
2827
9360ffd1
DM		 2828 if ((params->key &&
2829 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2830 params->key_len, params->key)) ||
2831 (params->seq &&
2832 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2833 params->seq_len, params->seq)) ||
2834 (params->cipher &&
2835 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2836 params->cipher)))
2837 goto nla_put_failure;
41ade00f 2838
b9454e83
JB		 2839 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2840 if (!key)
2841 goto nla_put_failure;
2842
9360ffd1
DM		 2843 if ((params->key &&
2844 nla_put(cookie->msg, NL80211_KEY_DATA,
2845 params->key_len, params->key)) ||
2846 (params->seq &&
2847 nla_put(cookie->msg, NL80211_KEY_SEQ,
2848 params->seq_len, params->seq)) ||
2849 (params->cipher &&
2850 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2851 params->cipher)))
2852 goto nla_put_failure;
b9454e83 2853
9360ffd1
DM		 2854 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2855 goto nla_put_failure;
b9454e83
JB		 2856
2857 nla_nest_end(cookie->msg, key);
2858
41ade00f
JB		 2859 return;
2860 nla_put_failure:
2861 cookie->error = 1;
2862}
2863
2864static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2865{
4c476991 2866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2867 int err;
4c476991 2868 struct net_device *dev = info->user_ptr[1];
41ade00f 2869 u8 key_idx = 0;
e31b8213
JB		 2870 const u8 *mac_addr = NULL;
2871 bool pairwise;
41ade00f
JB		 2872 struct get_key_cookie cookie = {
2873 .error = 0,
2874 };
2875 void *hdr;
2876 struct sk_buff *msg;
2877
2878 if (info->attrs[NL80211_ATTR_KEY_IDX])
2879 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2880
3cfcf6ac 2881 if (key_idx > 5)
41ade00f
JB		 2882 return -EINVAL;
2883
2884 if (info->attrs[NL80211_ATTR_MAC])
2885 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2886
e31b8213
JB		 2887 pairwise = !!mac_addr;
2888 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2889 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2890 if (kt >= NUM_NL80211_KEYTYPES)
2891 return -EINVAL;
2892 if (kt != NL80211_KEYTYPE_GROUP &&
2893 kt != NL80211_KEYTYPE_PAIRWISE)
2894 return -EINVAL;
2895 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2896 }
2897
4c476991
JB		 2898 if (!rdev->ops->get_key)
2899 return -EOPNOTSUPP;
41ade00f 2900
0fa7b391
JB		 2901 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2902 return -ENOENT;
2903
fd2120ca 2904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2905 if (!msg)
2906 return -ENOMEM;
41ade00f 2907
15e47304 2908 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2909 NL80211_CMD_NEW_KEY);
cb35fba3 2910 if (!hdr)
9fe271af 2911 goto nla_put_failure;
41ade00f
JB		 2912
2913 cookie.msg = msg;
b9454e83 2914 cookie.idx = key_idx;
41ade00f 2915
9360ffd1
DM		 2916 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2917 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2918 goto nla_put_failure;
2919 if (mac_addr &&
2920 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2921 goto nla_put_failure;
41ade00f 2922
e35e4d28
HG		 2923 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2924 get_key_callback);
41ade00f
JB		 2925
2926 if (err)
6c95e2a2 2927 goto free_msg;
41ade00f
JB		 2928
2929 if (cookie.error)
2930 goto nla_put_failure;
2931
2932 genlmsg_end(msg, hdr);
4c476991 2933 return genlmsg_reply(msg, info);
41ade00f
JB		 2934
2935 nla_put_failure:
2936 err = -ENOBUFS;
6c95e2a2 2937 free_msg:
41ade00f 2938 nlmsg_free(msg);
41ade00f
JB		 2939 return err;
2940}
2941
2942static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2943{
4c476991 2944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2945 struct key_parse key;
41ade00f 2946 int err;
4c476991 2947 struct net_device *dev = info->user_ptr[1];
41ade00f 2948
b9454e83
JB		 2949 err = nl80211_parse_key(info, &key);
2950 if (err)
2951 return err;
41ade00f 2952
b9454e83 2953 if (key.idx < 0)
41ade00f
JB		 2954 return -EINVAL;
2955
b9454e83
JB		 2956 /* only support setting default key */
2957 if (!key.def && !key.defmgmt)
41ade00f
JB		 2958 return -EINVAL;
2959
dbd2fd65 2960 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2961
dbd2fd65
JB		 2962 if (key.def) {
2963 if (!rdev->ops->set_default_key) {
2964 err = -EOPNOTSUPP;
2965 goto out;
2966 }
41ade00f 2967
dbd2fd65
JB		 2968 err = nl80211_key_allowed(dev->ieee80211_ptr);
2969 if (err)
2970 goto out;
2971
e35e4d28 2972 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2973 key.def_uni, key.def_multi);
2974
2975 if (err)
2976 goto out;
fffd0934 2977
3d23e349 2978#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2979 dev->ieee80211_ptr->wext.default_key = key.idx;
2980#endif
2981 } else {
2982 if (key.def_uni || !key.def_multi) {
2983 err = -EINVAL;
2984 goto out;
2985 }
2986
2987 if (!rdev->ops->set_default_mgmt_key) {
2988 err = -EOPNOTSUPP;
2989 goto out;
2990 }
2991
2992 err = nl80211_key_allowed(dev->ieee80211_ptr);
2993 if (err)
2994 goto out;
2995
e35e4d28 2996 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2997 if (err)
2998 goto out;
2999
3000#ifdef CONFIG_CFG80211_WEXT
3001 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 3002#endif
dbd2fd65
JB		 3003 }
3004
3005 out:
fffd0934 3006 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3007
41ade00f
JB		 3008 return err;
3009}
3010
3011static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3012{
4c476991 3013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 3014 int err;
4c476991 3015 struct net_device *dev = info->user_ptr[1];
b9454e83 3016 struct key_parse key;
e31b8213 3017 const u8 *mac_addr = NULL;
41ade00f 3018
b9454e83
JB		 3019 err = nl80211_parse_key(info, &key);
3020 if (err)
3021 return err;
41ade00f 3022
b9454e83 3023 if (!key.p.key)
41ade00f
JB		 3024 return -EINVAL;
3025
41ade00f
JB		 3026 if (info->attrs[NL80211_ATTR_MAC])
3027 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3028
e31b8213
JB		 3029 if (key.type == -1) {
3030 if (mac_addr)
3031 key.type = NL80211_KEYTYPE_PAIRWISE;
3032 else
3033 key.type = NL80211_KEYTYPE_GROUP;
3034 }
3035
3036 /* for now */
3037 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3038 key.type != NL80211_KEYTYPE_GROUP)
3039 return -EINVAL;
3040
4c476991
JB		 3041 if (!rdev->ops->add_key)
3042 return -EOPNOTSUPP;
25e47c18 3043
e31b8213
JB		 3044 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3045 key.type == NL80211_KEYTYPE_PAIRWISE,
3046 mac_addr))
4c476991 3047 return -EINVAL;
41ade00f 3048
fffd0934
JB		 3049 wdev_lock(dev->ieee80211_ptr);
3050 err = nl80211_key_allowed(dev->ieee80211_ptr);
3051 if (!err)
e35e4d28
HG		 3052 err = rdev_add_key(rdev, dev, key.idx,
3053 key.type == NL80211_KEYTYPE_PAIRWISE,
3054 mac_addr, &key.p);
fffd0934 3055 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3056
41ade00f
JB		 3057 return err;
3058}
3059
3060static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3061{
4c476991 3062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3063 int err;
4c476991 3064 struct net_device *dev = info->user_ptr[1];
41ade00f 3065 u8 *mac_addr = NULL;
b9454e83 3066 struct key_parse key;
41ade00f 3067
b9454e83
JB		 3068 err = nl80211_parse_key(info, &key);
3069 if (err)
3070 return err;
41ade00f
JB		 3071
3072 if (info->attrs[NL80211_ATTR_MAC])
3073 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3074
e31b8213
JB		 3075 if (key.type == -1) {
3076 if (mac_addr)
3077 key.type = NL80211_KEYTYPE_PAIRWISE;
3078 else
3079 key.type = NL80211_KEYTYPE_GROUP;
3080 }
3081
3082 /* for now */
3083 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3084 key.type != NL80211_KEYTYPE_GROUP)
3085 return -EINVAL;
3086
4c476991
JB		 3087 if (!rdev->ops->del_key)
3088 return -EOPNOTSUPP;
41ade00f 3089
fffd0934
JB		 3090 wdev_lock(dev->ieee80211_ptr);
3091 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3092
0fa7b391 3093 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3094 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3095 err = -ENOENT;
3096
fffd0934 3097 if (!err)
e35e4d28
HG		 3098 err = rdev_del_key(rdev, dev, key.idx,
3099 key.type == NL80211_KEYTYPE_PAIRWISE,
3100 mac_addr);
41ade00f 3101
3d23e349 3102#ifdef CONFIG_CFG80211_WEXT
08645126 3103 if (!err) {
b9454e83 3104 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3105 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3106 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3107 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3108 }
3109#endif
fffd0934 3110 wdev_unlock(dev->ieee80211_ptr);
08645126 3111
41ade00f
JB		 3112 return err;
3113}
3114
77765eaf
VT		 3115/* This function returns an error or the number of nested attributes */
3116static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3117{
3118 struct nlattr *attr;
3119 int n_entries = 0, tmp;
3120
3121 nla_for_each_nested(attr, nl_attr, tmp) {
3122 if (nla_len(attr) != ETH_ALEN)
3123 return -EINVAL;
3124
3125 n_entries++;
3126 }
3127
3128 return n_entries;
3129}
3130
3131/*
3132 * This function parses ACL information and allocates memory for ACL data.
3133 * On successful return, the calling function is responsible to free the
3134 * ACL buffer returned by this function.
3135 */
3136static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3137 struct genl_info *info)
3138{
3139 enum nl80211_acl_policy acl_policy;
3140 struct nlattr *attr;
3141 struct cfg80211_acl_data *acl;
3142 int i = 0, n_entries, tmp;
3143
3144 if (!wiphy->max_acl_mac_addrs)
3145 return ERR_PTR(-EOPNOTSUPP);
3146
3147 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3148 return ERR_PTR(-EINVAL);
3149
3150 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3151 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3152 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3153 return ERR_PTR(-EINVAL);
3154
3155 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3156 return ERR_PTR(-EINVAL);
3157
3158 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3159 if (n_entries < 0)
3160 return ERR_PTR(n_entries);
3161
3162 if (n_entries > wiphy->max_acl_mac_addrs)
3163 return ERR_PTR(-ENOTSUPP);
3164
3165 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3166 GFP_KERNEL);
3167 if (!acl)
3168 return ERR_PTR(-ENOMEM);
3169
3170 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3171 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3172 i++;
3173 }
3174
3175 acl->n_acl_entries = n_entries;
3176 acl->acl_policy = acl_policy;
3177
3178 return acl;
3179}
3180
3181static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3182{
3183 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3184 struct net_device *dev = info->user_ptr[1];
3185 struct cfg80211_acl_data *acl;
3186 int err;
3187
3188 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3189 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3190 return -EOPNOTSUPP;
3191
3192 if (!dev->ieee80211_ptr->beacon_interval)
3193 return -EINVAL;
3194
3195 acl = parse_acl_data(&rdev->wiphy, info);
3196 if (IS_ERR(acl))
3197 return PTR_ERR(acl);
3198
3199 err = rdev_set_mac_acl(rdev, dev, acl);
3200
3201 kfree(acl);
3202
3203 return err;
3204}
3205
a1193be8 3206static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3207 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3208{
8860020e 3209 bool haveinfo = false;
ed1b6cc7 3210
a1193be8
SW		 3211 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3212 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3213 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3214 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3215 return -EINVAL;
3216
8860020e 3217 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3218
a1193be8
SW		 3219 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3220 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3221 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3222 if (!bcn->head_len)
3223 return -EINVAL;
3224 haveinfo = true;
ed1b6cc7
JB		 3225 }
3226
a1193be8
SW		 3227 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3228 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3229 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3230 haveinfo = true;
ed1b6cc7
JB		 3231 }
3232
4c476991
JB		 3233 if (!haveinfo)
3234 return -EINVAL;
3b85875a 3235
a1193be8
SW		 3236 if (attrs[NL80211_ATTR_IE]) {
3237 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3238 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3239 }
3240
a1193be8 3241 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3242 bcn->proberesp_ies =
a1193be8 3243 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3244 bcn->proberesp_ies_len =
a1193be8 3245 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3246 }
3247
a1193be8 3248 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3249 bcn->assocresp_ies =
a1193be8 3250 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3251 bcn->assocresp_ies_len =
a1193be8 3252 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3253 }
3254
a1193be8
SW		 3255 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3256 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3257 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3258 }
3259
8860020e
JB		 3260 return 0;
3261}
3262
46c1dd0c
FF		 3263static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3264 struct cfg80211_ap_settings *params)
3265{
3266 struct wireless_dev *wdev;
3267 bool ret = false;
3268
89a54e48 3269 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3270 if (wdev->iftype != NL80211_IFTYPE_AP &&
3271 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3272 continue;
3273
683b6d3b 3274 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3275 continue;
3276
683b6d3b 3277 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3278 ret = true;
3279 break;
3280 }
3281
46c1dd0c
FF		 3282 return ret;
3283}
3284
e39e5b5e
JM		 3285static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3286 enum nl80211_auth_type auth_type,
3287 enum nl80211_commands cmd)
3288{
3289 if (auth_type > NL80211_AUTHTYPE_MAX)
3290 return false;
3291
3292 switch (cmd) {
3293 case NL80211_CMD_AUTHENTICATE:
3294 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3295 auth_type == NL80211_AUTHTYPE_SAE)
3296 return false;
3297 return true;
3298 case NL80211_CMD_CONNECT:
3299 case NL80211_CMD_START_AP:
3300 /* SAE not supported yet */
3301 if (auth_type == NL80211_AUTHTYPE_SAE)
3302 return false;
3303 return true;
3304 default:
3305 return false;
3306 }
3307}
3308
8860020e
JB		 3309static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3310{
3311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3312 struct net_device *dev = info->user_ptr[1];
3313 struct wireless_dev *wdev = dev->ieee80211_ptr;
3314 struct cfg80211_ap_settings params;
3315 int err;
3316
3317 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3318 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3319 return -EOPNOTSUPP;
3320
3321 if (!rdev->ops->start_ap)
3322 return -EOPNOTSUPP;
3323
3324 if (wdev->beacon_interval)
3325 return -EALREADY;
3326
3327 memset(&params, 0, sizeof(params));
3328
3329 /* these are required for START_AP */
3330 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3331 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3332 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3333 return -EINVAL;
3334
a1193be8 3335 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3336 if (err)
3337 return err;
3338
3339 params.beacon_interval =
3340 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3341 params.dtim_period =
3342 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3343
3344 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3345 if (err)
3346 return err;
3347
3348 /*
3349 * In theory, some of these attributes should be required here
3350 * but since they were not used when the command was originally
3351 * added, keep them optional for old user space programs to let
3352 * them continue to work with drivers that do not need the
3353 * additional information -- drivers must check!
3354 */
3355 if (info->attrs[NL80211_ATTR_SSID]) {
3356 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3357 params.ssid_len =
3358 nla_len(info->attrs[NL80211_ATTR_SSID]);
3359 if (params.ssid_len == 0 ||
3360 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3361 return -EINVAL;
3362 }
3363
3364 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3365 params.hidden_ssid = nla_get_u32(
3366 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3367 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3368 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3369 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3370 return -EINVAL;
3371 }
3372
3373 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3374
3375 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3376 params.auth_type = nla_get_u32(
3377 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3378 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3379 NL80211_CMD_START_AP))
8860020e
JB		 3380 return -EINVAL;
3381 } else
3382 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3383
3384 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3385 NL80211_MAX_NR_CIPHER_SUITES);
3386 if (err)
3387 return err;
3388
1b658f11
VT		 3389 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3390 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3391 return -EOPNOTSUPP;
3392 params.inactivity_timeout = nla_get_u16(
3393 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3394 }
3395
53cabad7
JB		 3396 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3397 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3398 return -EINVAL;
3399 params.p2p_ctwindow =
3400 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3401 if (params.p2p_ctwindow > 127)
3402 return -EINVAL;
3403 if (params.p2p_ctwindow != 0 &&
3404 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3405 return -EINVAL;
3406 }
3407
3408 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3409 u8 tmp;
3410
3411 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3412 return -EINVAL;
3413 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3414 if (tmp > 1)
3415 return -EINVAL;
3416 params.p2p_opp_ps = tmp;
3417 if (params.p2p_opp_ps != 0 &&
3418 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3419 return -EINVAL;
3420 }
3421
aa430da4 3422 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3423 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3424 if (err)
3425 return err;
3426 } else if (wdev->preset_chandef.chan) {
3427 params.chandef = wdev->preset_chandef;
46c1dd0c 3428 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3429 return -EINVAL;
3430
923b352f
AN		 3431 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
3432 wdev->iftype))
aa430da4
JB		 3433 return -EINVAL;
3434
77765eaf
VT		 3435 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3436 params.acl = parse_acl_data(&rdev->wiphy, info);
3437 if (IS_ERR(params.acl))
3438 return PTR_ERR(params.acl);
3439 }
3440
18998c38
EP		 3441 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3442 params.smps_mode =
3443 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3444 switch (params.smps_mode) {
3445 case NL80211_SMPS_OFF:
3446 break;
3447 case NL80211_SMPS_STATIC:
3448 if (!(rdev->wiphy.features &
3449 NL80211_FEATURE_STATIC_SMPS))
3450 return -EINVAL;
3451 break;
3452 case NL80211_SMPS_DYNAMIC:
3453 if (!(rdev->wiphy.features &
3454 NL80211_FEATURE_DYNAMIC_SMPS))
3455 return -EINVAL;
3456 break;
3457 default:
3458 return -EINVAL;
3459 }
3460 } else {
3461 params.smps_mode = NL80211_SMPS_OFF;
3462 }
3463
c56589ed 3464 wdev_lock(wdev);
e35e4d28 3465 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3466 if (!err) {
683b6d3b 3467 wdev->preset_chandef = params.chandef;
8860020e 3468 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3469 wdev->chandef = params.chandef;
06e191e2
AQ		 3470 wdev->ssid_len = params.ssid_len;
3471 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3472 }
c56589ed 3473 wdev_unlock(wdev);
77765eaf
VT		 3474
3475 kfree(params.acl);
3476
56d1893d 3477 return err;
ed1b6cc7
JB		 3478}
3479
8860020e
JB		 3480static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3481{
3482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3483 struct net_device *dev = info->user_ptr[1];
3484 struct wireless_dev *wdev = dev->ieee80211_ptr;
3485 struct cfg80211_beacon_data params;
3486 int err;
3487
3488 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3489 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3490 return -EOPNOTSUPP;
3491
3492 if (!rdev->ops->change_beacon)
3493 return -EOPNOTSUPP;
3494
3495 if (!wdev->beacon_interval)
3496 return -EINVAL;
3497
a1193be8 3498 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3499 if (err)
3500 return err;
3501
c56589ed
SW		 3502 wdev_lock(wdev);
3503 err = rdev_change_beacon(rdev, dev, &params);
3504 wdev_unlock(wdev);
3505
3506 return err;
8860020e
JB		 3507}
3508
3509static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3510{
4c476991
JB		 3511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3512 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3513
7c8d5e03 3514 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3515}
3516
5727ef1b
JB		 3517static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3518 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3519 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3520 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3521 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3522 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3523 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3524};
3525
eccb8e8f 3526static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3527 enum nl80211_iftype iftype,
eccb8e8f 3528 struct station_parameters *params)
5727ef1b
JB		 3529{
3530 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3531 struct nlattr *nla;
5727ef1b
JB		 3532 int flag;
3533
eccb8e8f
JB		 3534 /*
3535 * Try parsing the new attribute first so userspace
3536 * can specify both for older kernels.
3537 */
3538 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3539 if (nla) {
3540 struct nl80211_sta_flag_update *sta_flags;
3541
3542 sta_flags = nla_data(nla);
3543 params->sta_flags_mask = sta_flags->mask;
3544 params->sta_flags_set = sta_flags->set;
77ee7c89 3545 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3546 if ((params->sta_flags_mask |
3547 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3548 return -EINVAL;
3549 return 0;
3550 }
3551
3552 /* if present, parse the old attribute */
5727ef1b 3553
eccb8e8f 3554 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3555 if (!nla)
3556 return 0;
3557
3558 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3559 nla, sta_flags_policy))
3560 return -EINVAL;
3561
bdd3ae3d
JB		 3562 /*
3563 * Only allow certain flags for interface types so that
3564 * other attributes are silently ignored. Remember that
3565 * this is backward compatibility code with old userspace
3566 * and shouldn't be hit in other cases anyway.
3567 */
3568 switch (iftype) {
3569 case NL80211_IFTYPE_AP:
3570 case NL80211_IFTYPE_AP_VLAN:
3571 case NL80211_IFTYPE_P2P_GO:
3572 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3573 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3574 BIT(NL80211_STA_FLAG_WME) |
3575 BIT(NL80211_STA_FLAG_MFP);
3576 break;
3577 case NL80211_IFTYPE_P2P_CLIENT:
3578 case NL80211_IFTYPE_STATION:
3579 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3580 BIT(NL80211_STA_FLAG_TDLS_PEER);
3581 break;
3582 case NL80211_IFTYPE_MESH_POINT:
3583 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3584 BIT(NL80211_STA_FLAG_MFP) |
3585 BIT(NL80211_STA_FLAG_AUTHORIZED);
3586 default:
3587 return -EINVAL;
3588 }
5727ef1b 3589
3383b5a6
JB		 3590 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3591 if (flags[flag]) {
eccb8e8f 3592 params->sta_flags_set |= (1<<flag);
5727ef1b 3593
3383b5a6
JB		 3594 /* no longer support new API additions in old API */
3595 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3596 return -EINVAL;
3597 }
3598 }
3599
5727ef1b
JB		 3600 return 0;
3601}
3602
c8dcfd8a
FF		 3603static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3604 int attr)
3605{
3606 struct nlattr *rate;
8eb41c8d
VK		 3607 u32 bitrate;
3608 u16 bitrate_compat;
b51f3bee 3609 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3610
3611 rate = nla_nest_start(msg, attr);
3612 if (!rate)
db9c64cf 3613 return false;
c8dcfd8a
FF		 3614
3615 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3616 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3617 /* report 16-bit bitrate only if we can */
3618 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3619 if (bitrate > 0 &&
3620 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3621 return false;
3622 if (bitrate_compat > 0 &&
3623 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3624 return false;
3625
b51f3bee
JB		 3626 switch (info->bw) {
3627 case RATE_INFO_BW_5:
3628 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3629 break;
3630 case RATE_INFO_BW_10:
3631 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3632 break;
3633 default:
3634 WARN_ON(1);
3635 /* fall through */
3636 case RATE_INFO_BW_20:
3637 rate_flg = 0;
3638 break;
3639 case RATE_INFO_BW_40:
3640 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3641 break;
3642 case RATE_INFO_BW_80:
3643 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3644 break;
3645 case RATE_INFO_BW_160:
3646 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3647 break;
3648 }
3649
3650 if (rate_flg && nla_put_flag(msg, rate_flg))
3651 return false;
3652
db9c64cf
JB		 3653 if (info->flags & RATE_INFO_FLAGS_MCS) {
3654 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3655 return false;
db9c64cf
JB		 3656 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3657 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3658 return false;
3659 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3660 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3661 return false;
3662 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3663 return false;
db9c64cf
JB		 3664 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3665 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3666 return false;
3667 }
c8dcfd8a
FF		 3668
3669 nla_nest_end(msg, rate);
3670 return true;
c8dcfd8a
FF		 3671}
3672
119363c7
FF		 3673static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3674 int id)
3675{
3676 void *attr;
3677 int i = 0;
3678
3679 if (!mask)
3680 return true;
3681
3682 attr = nla_nest_start(msg, id);
3683 if (!attr)
3684 return false;
3685
3686 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3687 if (!(mask & BIT(i)))
3688 continue;
3689
3690 if (nla_put_u8(msg, i, signal[i]))
3691 return false;
3692 }
3693
3694 nla_nest_end(msg, attr);
3695
3696 return true;
3697}
3698
cf5ead82
JB		 3699static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3700 u32 seq, int flags,
66266b3a
JL		 3701 struct cfg80211_registered_device *rdev,
3702 struct net_device *dev,
98b62183 3703 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3704{
3705 void *hdr;
f4263c98 3706 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3707
cf5ead82 3708 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3709 if (!hdr)
3710 return -1;
3711
9360ffd1
DM		 3712 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3713 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3714 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3715 goto nla_put_failure;
f5ea9120 3716
2ec600d6
LCC		 3717 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3718 if (!sinfoattr)
fd5b74dc 3719 goto nla_put_failure;
319090bf
JB		 3720
3721#define PUT_SINFO(attr, memb, type) do { \
3722 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3723 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3724 sinfo->memb)) \
3725 goto nla_put_failure; \
3726 } while (0)
3727
3728 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3729 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3730
3731 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3732 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3733 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3734 (u32)sinfo->rx_bytes))
9360ffd1 3735 goto nla_put_failure;
319090bf
JB		 3736
3737 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3738 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3739 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3740 (u32)sinfo->tx_bytes))
3741 goto nla_put_failure;
319090bf
JB		 3742
3743 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3744 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3745 PUT_SINFO(LLID, llid, u16);
3746 PUT_SINFO(PLID, plid, u16);
3747 PUT_SINFO(PLINK_STATE, plink_state, u8);
3748
66266b3a
JL		 3749 switch (rdev->wiphy.signal_type) {
3750 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3751 PUT_SINFO(SIGNAL, signal, u8);
3752 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3753 break;
3754 default:
3755 break;
3756 }
319090bf 3757 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3758 if (!nl80211_put_signal(msg, sinfo->chains,
3759 sinfo->chain_signal,
3760 NL80211_STA_INFO_CHAIN_SIGNAL))
3761 goto nla_put_failure;
3762 }
319090bf 3763 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3764 if (!nl80211_put_signal(msg, sinfo->chains,
3765 sinfo->chain_signal_avg,
3766 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3767 goto nla_put_failure;
3768 }
319090bf 3769 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3770 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3771 NL80211_STA_INFO_TX_BITRATE))
3772 goto nla_put_failure;
3773 }
319090bf 3774 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3775 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3776 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3777 goto nla_put_failure;
420e7fab 3778 }
319090bf
JB		 3779
3780 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3781 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3782 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3783 PUT_SINFO(TX_FAILED, tx_failed, u32);
3784 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3785 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3786 PUT_SINFO(LOCAL_PM, local_pm, u32);
3787 PUT_SINFO(PEER_PM, peer_pm, u32);
3788 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3789
3790 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3791 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3792 if (!bss_param)
3793 goto nla_put_failure;
3794
9360ffd1
DM		 3795 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3796 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3797 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3798 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3799 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3800 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3801 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3802 sinfo->bss_param.dtim_period) ||
3803 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3804 sinfo->bss_param.beacon_interval))
3805 goto nla_put_failure;
f4263c98
PS		 3806
3807 nla_nest_end(msg, bss_param);
3808 }
319090bf 3809 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3810 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3811 sizeof(struct nl80211_sta_flag_update),
3812 &sinfo->sta_flags))
3813 goto nla_put_failure;
319090bf
JB		 3814
3815 PUT_SINFO(T_OFFSET, t_offset, u64);
3816 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
a76b1942
JB		 3817 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3818 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3819
3820#undef PUT_SINFO
6de39808
JB		 3821
3822 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3823 struct nlattr *tidsattr;
3824 int tid;
3825
3826 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3827 if (!tidsattr)
3828 goto nla_put_failure;
3829
3830 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3831 struct cfg80211_tid_stats *tidstats;
3832 struct nlattr *tidattr;
3833
3834 tidstats = &sinfo->pertid[tid];
3835
3836 if (!tidstats->filled)
3837 continue;
3838
3839 tidattr = nla_nest_start(msg, tid + 1);
3840 if (!tidattr)
3841 goto nla_put_failure;
3842
3843#define PUT_TIDVAL(attr, memb, type) do { \
3844 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3845 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3846 tidstats->memb)) \
3847 goto nla_put_failure; \
3848 } while (0)
3849
3850 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3851 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3852 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3853 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3854
3855#undef PUT_TIDVAL
3856 nla_nest_end(msg, tidattr);
3857 }
3858
3859 nla_nest_end(msg, tidsattr);
3860 }
3861
2ec600d6 3862 nla_nest_end(msg, sinfoattr);
fd5b74dc 3863
319090bf 3864 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3865 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3866 sinfo->assoc_req_ies))
3867 goto nla_put_failure;
50d3dfb7 3868
053c095a
JB		 3869 genlmsg_end(msg, hdr);
3870 return 0;
fd5b74dc
JB		 3871
3872 nla_put_failure:
bc3ed28c
TG		 3873 genlmsg_cancel(msg, hdr);
3874 return -EMSGSIZE;
fd5b74dc
JB		 3875}
3876
2ec600d6 3877static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3878 struct netlink_callback *cb)
2ec600d6 3879{
2ec600d6 3880 struct station_info sinfo;
1b8ec87a 3881 struct cfg80211_registered_device *rdev;
97990a06 3882 struct wireless_dev *wdev;
2ec600d6 3883 u8 mac_addr[ETH_ALEN];
97990a06 3884 int sta_idx = cb->args[2];
2ec600d6 3885 int err;
2ec600d6 3886
1b8ec87a 3887 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3888 if (err)
3889 return err;
bba95fef 3890
97990a06
JB		 3891 if (!wdev->netdev) {
3892 err = -EINVAL;
3893 goto out_err;
3894 }
3895
1b8ec87a 3896 if (!rdev->ops->dump_station) {
eec60b03 3897 err = -EOPNOTSUPP;
bba95fef
JB		 3898 goto out_err;
3899 }
3900
bba95fef 3901 while (1) {
f612cedf 3902 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3903 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3904 mac_addr, &sinfo);
bba95fef
JB		 3905 if (err == -ENOENT)
3906 break;
3907 if (err)
3b85875a 3908 goto out_err;
bba95fef 3909
cf5ead82 3910 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3911 NETLINK_CB(cb->skb).portid,
bba95fef 3912 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3913 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3914 &sinfo) < 0)
3915 goto out;
3916
3917 sta_idx++;
3918 }
3919
3920
3921 out:
97990a06 3922 cb->args[2] = sta_idx;
bba95fef 3923 err = skb->len;
bba95fef 3924 out_err:
1b8ec87a 3925 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3926
3927 return err;
2ec600d6 3928}
fd5b74dc 3929
5727ef1b
JB		 3930static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3931{
4c476991
JB		 3932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3933 struct net_device *dev = info->user_ptr[1];
2ec600d6 3934 struct station_info sinfo;
fd5b74dc
JB		 3935 struct sk_buff *msg;
3936 u8 *mac_addr = NULL;
4c476991 3937 int err;
fd5b74dc 3938
2ec600d6 3939 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3940
3941 if (!info->attrs[NL80211_ATTR_MAC])
3942 return -EINVAL;
3943
3944 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3945
4c476991
JB		 3946 if (!rdev->ops->get_station)
3947 return -EOPNOTSUPP;
3b85875a 3948
e35e4d28 3949 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3950 if (err)
4c476991 3951 return err;
2ec600d6 3952
fd2120ca 3953 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3954 if (!msg)
4c476991 3955 return -ENOMEM;
fd5b74dc 3956
cf5ead82
JB		 3957 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3958 info->snd_portid, info->snd_seq, 0,
66266b3a 3959 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3960 nlmsg_free(msg);
3961 return -ENOBUFS;
3962 }
3b85875a 3963
4c476991 3964 return genlmsg_reply(msg, info);
5727ef1b
JB		 3965}
3966
77ee7c89
JB		 3967int cfg80211_check_station_change(struct wiphy *wiphy,
3968 struct station_parameters *params,
3969 enum cfg80211_station_type statype)
3970{
3971 if (params->listen_interval != -1)
3972 return -EINVAL;
c72e1140
AN		 3973 if (params->aid &&
3974 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3975 return -EINVAL;
3976
3977 /* When you run into this, adjust the code below for the new flag */
3978 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3979
3980 switch (statype) {
eef941e6
TP		 3981 case CFG80211_STA_MESH_PEER_KERNEL:
3982 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3983 /*
3984 * No ignoring the TDLS flag here -- the userspace mesh
3985 * code doesn't have the bug of including TDLS in the
3986 * mask everywhere.
3987 */
3988 if (params->sta_flags_mask &
3989 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3990 BIT(NL80211_STA_FLAG_MFP) |
3991 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3992 return -EINVAL;
3993 break;
3994 case CFG80211_STA_TDLS_PEER_SETUP:
3995 case CFG80211_STA_TDLS_PEER_ACTIVE:
3996 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3997 return -EINVAL;
3998 /* ignore since it can't change */
3999 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4000 break;
4001 default:
4002 /* disallow mesh-specific things */
4003 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4004 return -EINVAL;
4005 if (params->local_pm)
4006 return -EINVAL;
4007 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4008 return -EINVAL;
4009 }
4010
4011 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4012 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4013 /* TDLS can't be set, ... */
4014 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4015 return -EINVAL;
4016 /*
4017 * ... but don't bother the driver with it. This works around
4018 * a hostapd/wpa_supplicant issue -- it always includes the
4019 * TLDS_PEER flag in the mask even for AP mode.
4020 */
4021 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4022 }
4023
47edb11b
AB		 4024 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4025 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4026 /* reject other things that can't change */
4027 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4028 return -EINVAL;
4029 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4030 return -EINVAL;
4031 if (params->supported_rates)
4032 return -EINVAL;
4033 if (params->ext_capab || params->ht_capa || params->vht_capa)
4034 return -EINVAL;
4035 }
4036
47edb11b
AB		 4037 if (statype != CFG80211_STA_AP_CLIENT &&
4038 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4039 if (params->vlan)
4040 return -EINVAL;
4041 }
4042
4043 switch (statype) {
4044 case CFG80211_STA_AP_MLME_CLIENT:
4045 /* Use this only for authorizing/unauthorizing a station */
4046 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4047 return -EOPNOTSUPP;
4048 break;
4049 case CFG80211_STA_AP_CLIENT:
47edb11b 4050 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4051 /* accept only the listed bits */
4052 if (params->sta_flags_mask &
4053 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4054 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4055 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4056 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4057 BIT(NL80211_STA_FLAG_WME) |
4058 BIT(NL80211_STA_FLAG_MFP)))
4059 return -EINVAL;
4060
4061 /* but authenticated/associated only if driver handles it */
4062 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4063 params->sta_flags_mask &
4064 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4065 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4066 return -EINVAL;
4067 break;
4068 case CFG80211_STA_IBSS:
4069 case CFG80211_STA_AP_STA:
4070 /* reject any changes other than AUTHORIZED */
4071 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4072 return -EINVAL;
4073 break;
4074 case CFG80211_STA_TDLS_PEER_SETUP:
4075 /* reject any changes other than AUTHORIZED or WME */
4076 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4077 BIT(NL80211_STA_FLAG_WME)))
4078 return -EINVAL;
4079 /* force (at least) rates when authorizing */
4080 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4081 !params->supported_rates)
4082 return -EINVAL;
4083 break;
4084 case CFG80211_STA_TDLS_PEER_ACTIVE:
4085 /* reject any changes */
4086 return -EINVAL;
eef941e6 4087 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4088 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4089 return -EINVAL;
4090 break;
eef941e6 4091 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4092 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4093 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4094 return -EINVAL;
4095 break;
4096 }
4097
4098 return 0;
4099}
4100EXPORT_SYMBOL(cfg80211_check_station_change);
4101
5727ef1b 4102/*
c258d2de 4103 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4104 */
80b99899
JB		 4105static struct net_device *get_vlan(struct genl_info *info,
4106 struct cfg80211_registered_device *rdev)
5727ef1b 4107{
463d0183 4108 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4109 struct net_device *v;
4110 int ret;
4111
4112 if (!vlanattr)
4113 return NULL;
4114
4115 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4116 if (!v)
4117 return ERR_PTR(-ENODEV);
4118
4119 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4120 ret = -EINVAL;
4121 goto error;
5727ef1b 4122 }
80b99899 4123
77ee7c89
JB		 4124 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4125 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4126 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4127 ret = -EINVAL;
4128 goto error;
4129 }
4130
80b99899
JB		 4131 if (!netif_running(v)) {
4132 ret = -ENETDOWN;
4133 goto error;
4134 }
4135
4136 return v;
4137 error:
4138 dev_put(v);
4139 return ERR_PTR(ret);
5727ef1b
JB		 4140}
4141
94e860f1
JB		 4142static const struct nla_policy
4143nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4144 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4145 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4146};
4147
ff276691
JB		 4148static int nl80211_parse_sta_wme(struct genl_info *info,
4149 struct station_parameters *params)
df881293 4150{
df881293
JM		 4151 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4152 struct nlattr *nla;
4153 int err;
4154
df881293
JM		 4155 /* parse WME attributes if present */
4156 if (!info->attrs[NL80211_ATTR_STA_WME])
4157 return 0;
4158
4159 nla = info->attrs[NL80211_ATTR_STA_WME];
4160 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4161 nl80211_sta_wme_policy);
4162 if (err)
4163 return err;
4164
4165 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4166 params->uapsd_queues = nla_get_u8(
4167 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4168 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4169 return -EINVAL;
4170
4171 if (tb[NL80211_STA_WME_MAX_SP])
4172 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4173
4174 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4175 return -EINVAL;
4176
4177 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4178
4179 return 0;
4180}
4181
c01fc9ad
SD		 4182static int nl80211_parse_sta_channel_info(struct genl_info *info,
4183 struct station_parameters *params)
4184{
4185 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4186 params->supported_channels =
4187 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4188 params->supported_channels_len =
4189 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4190 /*
4191 * Need to include at least one (first channel, number of
4192 * channels) tuple for each subband, and must have proper
4193 * tuples for the rest of the data as well.
4194 */
4195 if (params->supported_channels_len < 2)
4196 return -EINVAL;
4197 if (params->supported_channels_len % 2)
4198 return -EINVAL;
4199 }
4200
4201 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4202 params->supported_oper_classes =
4203 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4204 params->supported_oper_classes_len =
4205 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4206 /*
4207 * The value of the Length field of the Supported Operating
4208 * Classes element is between 2 and 253.
4209 */
4210 if (params->supported_oper_classes_len < 2 ||
4211 params->supported_oper_classes_len > 253)
4212 return -EINVAL;
4213 }
4214 return 0;
4215}
4216
ff276691
JB		 4217static int nl80211_set_station_tdls(struct genl_info *info,
4218 struct station_parameters *params)
4219{
c01fc9ad 4220 int err;
ff276691 4221 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4222 if (info->attrs[NL80211_ATTR_PEER_AID])
4223 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4224 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4225 params->ht_capa =
4226 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4227 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4228 params->vht_capa =
4229 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4230
c01fc9ad
SD		 4231 err = nl80211_parse_sta_channel_info(info, params);
4232 if (err)
4233 return err;
4234
ff276691
JB		 4235 return nl80211_parse_sta_wme(info, params);
4236}
4237
5727ef1b
JB		 4238static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4239{
4c476991 4240 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4241 struct net_device *dev = info->user_ptr[1];
5727ef1b 4242 struct station_parameters params;
77ee7c89
JB		 4243 u8 *mac_addr;
4244 int err;
5727ef1b
JB		 4245
4246 memset(&params, 0, sizeof(params));
4247
4248 params.listen_interval = -1;
4249
77ee7c89
JB		 4250 if (!rdev->ops->change_station)
4251 return -EOPNOTSUPP;
4252
5727ef1b
JB		 4253 if (info->attrs[NL80211_ATTR_STA_AID])
4254 return -EINVAL;
4255
4256 if (!info->attrs[NL80211_ATTR_MAC])
4257 return -EINVAL;
4258
4259 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4260
4261 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4262 params.supported_rates =
4263 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4264 params.supported_rates_len =
4265 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4266 }
4267
9d62a986
JM		 4268 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4269 params.capability =
4270 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4271 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4272 }
4273
4274 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4275 params.ext_capab =
4276 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4277 params.ext_capab_len =
4278 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4279 }
4280
df881293 4281 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4282 return -EINVAL;
36aedc90 4283
bdd3ae3d 4284 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4285 return -EINVAL;
4286
f8bacc21 4287 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4288 params.plink_action =
f8bacc21
JB		 4289 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4290 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4291 return -EINVAL;
4292 }
2ec600d6 4293
f8bacc21 4294 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4295 params.plink_state =
f8bacc21
JB		 4296 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4297 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4298 return -EINVAL;
4299 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4300 }
9c3990aa 4301
3b1c5a53
MP		 4302 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4303 enum nl80211_mesh_power_mode pm = nla_get_u32(
4304 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4305
4306 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4307 pm > NL80211_MESH_POWER_MAX)
4308 return -EINVAL;
4309
4310 params.local_pm = pm;
4311 }
4312
77ee7c89
JB		 4313 /* Include parameters for TDLS peer (will check later) */
4314 err = nl80211_set_station_tdls(info, &params);
4315 if (err)
4316 return err;
4317
4318 params.vlan = get_vlan(info, rdev);
4319 if (IS_ERR(params.vlan))
4320 return PTR_ERR(params.vlan);
4321
a97f4424
JB		 4322 switch (dev->ieee80211_ptr->iftype) {
4323 case NL80211_IFTYPE_AP:
4324 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4325 case NL80211_IFTYPE_P2P_GO:
074ac8df 4326 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4327 case NL80211_IFTYPE_STATION:
267335d6 4328 case NL80211_IFTYPE_ADHOC:
a97f4424 4329 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4330 break;
4331 default:
77ee7c89
JB		 4332 err = -EOPNOTSUPP;
4333 goto out_put_vlan;
034d655e
JB		 4334 }
4335
77ee7c89 4336 /* driver will call cfg80211_check_station_change() */
e35e4d28 4337 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4338
77ee7c89 4339 out_put_vlan:
5727ef1b
JB		 4340 if (params.vlan)
4341 dev_put(params.vlan);
3b85875a 4342
5727ef1b
JB		 4343 return err;
4344}
4345
4346static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4347{
4c476991 4348 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4349 int err;
4c476991 4350 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4351 struct station_parameters params;
4352 u8 *mac_addr = NULL;
4353
4354 memset(&params, 0, sizeof(params));
4355
984c311b
JB		 4356 if (!rdev->ops->add_station)
4357 return -EOPNOTSUPP;
4358
5727ef1b
JB		 4359 if (!info->attrs[NL80211_ATTR_MAC])
4360 return -EINVAL;
4361
5727ef1b
JB		 4362 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4363 return -EINVAL;
4364
4365 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4366 return -EINVAL;
4367
5e4b6f56
JM		 4368 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4369 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4370 return -EINVAL;
4371
5727ef1b
JB		 4372 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4373 params.supported_rates =
4374 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4375 params.supported_rates_len =
4376 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4377 params.listen_interval =
4378 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4379
3d124ea2 4380 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4381 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4382 else
4383 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4384 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4385 return -EINVAL;
51b50fbe 4386
9d62a986
JM		 4387 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4388 params.capability =
4389 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4390 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4391 }
4392
4393 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4394 params.ext_capab =
4395 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4396 params.ext_capab_len =
4397 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4398 }
4399
36aedc90
JM		 4400 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4401 params.ht_capa =
4402 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4403
f461be3e
MP		 4404 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4405 params.vht_capa =
4406 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4407
60f4a7b1
MK		 4408 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4409 params.opmode_notif_used = true;
4410 params.opmode_notif =
4411 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4412 }
4413
f8bacc21 4414 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4415 params.plink_action =
f8bacc21
JB		 4416 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4417 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4418 return -EINVAL;
4419 }
96b78dff 4420
c01fc9ad
SD		 4421 err = nl80211_parse_sta_channel_info(info, &params);
4422 if (err)
4423 return err;
4424
ff276691
JB		 4425 err = nl80211_parse_sta_wme(info, &params);
4426 if (err)
4427 return err;
bdd90d5e 4428
bdd3ae3d 4429 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4430 return -EINVAL;
4431
496fcc29
JB		 4432 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4433 * as userspace might just pass through the capabilities from the IEs
4434 * directly, rather than enforcing this restriction and returning an
4435 * error in this case.
4436 */
4437 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4438 params.ht_capa = NULL;
4439 params.vht_capa = NULL;
4440 }
4441
77ee7c89
JB		 4442 /* When you run into this, adjust the code below for the new flag */
4443 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4444
bdd90d5e
JB		 4445 switch (dev->ieee80211_ptr->iftype) {
4446 case NL80211_IFTYPE_AP:
4447 case NL80211_IFTYPE_AP_VLAN:
4448 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4449 /* ignore WME attributes if iface/sta is not capable */
4450 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4451 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4452 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4453
bdd90d5e 4454 /* TDLS peers cannot be added */
3d124ea2
JM		 4455 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4456 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4457 return -EINVAL;
bdd90d5e
JB		 4458 /* but don't bother the driver with it */
4459 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4460
d582cffb
JB		 4461 /* allow authenticated/associated only if driver handles it */
4462 if (!(rdev->wiphy.features &
4463 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4464 params.sta_flags_mask &
4465 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4466 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4467 return -EINVAL;
4468
bdd90d5e
JB		 4469 /* must be last in here for error handling */
4470 params.vlan = get_vlan(info, rdev);
4471 if (IS_ERR(params.vlan))
4472 return PTR_ERR(params.vlan);
4473 break;
4474 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4475 /* ignore uAPSD data */
4476 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4477
d582cffb
JB		 4478 /* associated is disallowed */
4479 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4480 return -EINVAL;
bdd90d5e 4481 /* TDLS peers cannot be added */
3d124ea2
JM		 4482 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4483 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4484 return -EINVAL;
4485 break;
4486 case NL80211_IFTYPE_STATION:
93d08f0b 4487 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4488 /* ignore uAPSD data */
4489 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4490
77ee7c89
JB		 4491 /* these are disallowed */
4492 if (params.sta_flags_mask &
4493 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4494 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4495 return -EINVAL;
bdd90d5e
JB		 4496 /* Only TDLS peers can be added */
4497 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4498 return -EINVAL;
4499 /* Can only add if TDLS ... */
4500 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4501 return -EOPNOTSUPP;
4502 /* ... with external setup is supported */
4503 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4504 return -EOPNOTSUPP;
77ee7c89
JB		 4505 /*
4506 * Older wpa_supplicant versions always mark the TDLS peer
4507 * as authorized, but it shouldn't yet be.
4508 */
4509 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4510 break;
4511 default:
4512 return -EOPNOTSUPP;
c75786c9
EP		 4513 }
4514
bdd90d5e 4515 /* be aware of params.vlan when changing code here */
5727ef1b 4516
e35e4d28 4517 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4518
5727ef1b
JB		 4519 if (params.vlan)
4520 dev_put(params.vlan);
5727ef1b
JB		 4521 return err;
4522}
4523
4524static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4525{
4c476991
JB		 4526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4527 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4528 struct station_del_parameters params;
4529
4530 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4531
4532 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4533 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4534
e80cf853 4535 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4536 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4537 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4538 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4539 return -EINVAL;
5727ef1b 4540
4c476991
JB		 4541 if (!rdev->ops->del_station)
4542 return -EOPNOTSUPP;
3b85875a 4543
98856866
JM		 4544 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4545 params.subtype =
4546 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4547 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4548 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4549 return -EINVAL;
4550 } else {
4551 /* Default to Deauthentication frame */
4552 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4553 }
4554
4555 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4556 params.reason_code =
4557 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4558 if (params.reason_code == 0)
4559 return -EINVAL; /* 0 is reserved */
4560 } else {
4561 /* Default to reason code 2 */
4562 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4563 }
4564
89c771e5 4565 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4566}
4567
15e47304 4568static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4569 int flags, struct net_device *dev,
4570 u8 *dst, u8 *next_hop,
4571 struct mpath_info *pinfo)
4572{
4573 void *hdr;
4574 struct nlattr *pinfoattr;
4575
1ef4c850 4576 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4577 if (!hdr)
4578 return -1;
4579
9360ffd1
DM		 4580 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4581 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4582 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4583 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4584 goto nla_put_failure;
f5ea9120 4585
2ec600d6
LCC		 4586 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4587 if (!pinfoattr)
4588 goto nla_put_failure;
9360ffd1
DM		 4589 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4590 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4591 pinfo->frame_qlen))
4592 goto nla_put_failure;
4593 if (((pinfo->filled & MPATH_INFO_SN) &&
4594 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4595 ((pinfo->filled & MPATH_INFO_METRIC) &&
4596 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4597 pinfo->metric)) ||
4598 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4599 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4600 pinfo->exptime)) ||
4601 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4602 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4603 pinfo->flags)) ||
4604 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4605 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4606 pinfo->discovery_timeout)) ||
4607 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4608 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4609 pinfo->discovery_retries)))
4610 goto nla_put_failure;
2ec600d6
LCC		 4611
4612 nla_nest_end(msg, pinfoattr);
4613
053c095a
JB		 4614 genlmsg_end(msg, hdr);
4615 return 0;
2ec600d6
LCC		 4616
4617 nla_put_failure:
bc3ed28c
TG		 4618 genlmsg_cancel(msg, hdr);
4619 return -EMSGSIZE;
2ec600d6
LCC		 4620}
4621
4622static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4623 struct netlink_callback *cb)
2ec600d6 4624{
2ec600d6 4625 struct mpath_info pinfo;
1b8ec87a 4626 struct cfg80211_registered_device *rdev;
97990a06 4627 struct wireless_dev *wdev;
2ec600d6
LCC		 4628 u8 dst[ETH_ALEN];
4629 u8 next_hop[ETH_ALEN];
97990a06 4630 int path_idx = cb->args[2];
2ec600d6 4631 int err;
2ec600d6 4632
1b8ec87a 4633 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4634 if (err)
4635 return err;
bba95fef 4636
1b8ec87a 4637 if (!rdev->ops->dump_mpath) {
eec60b03 4638 err = -EOPNOTSUPP;
bba95fef
JB		 4639 goto out_err;
4640 }
4641
97990a06 4642 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4643 err = -EOPNOTSUPP;
0448b5fc 4644 goto out_err;
eec60b03
JM		 4645 }
4646
bba95fef 4647 while (1) {
1b8ec87a 4648 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4649 next_hop, &pinfo);
bba95fef 4650 if (err == -ENOENT)
2ec600d6 4651 break;
bba95fef 4652 if (err)
3b85875a 4653 goto out_err;
2ec600d6 4654
15e47304 4655 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4656 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4657 wdev->netdev, dst, next_hop,
bba95fef
JB		 4658 &pinfo) < 0)
4659 goto out;
2ec600d6 4660
bba95fef 4661 path_idx++;
2ec600d6 4662 }
2ec600d6 4663
2ec600d6 4664
bba95fef 4665 out:
97990a06 4666 cb->args[2] = path_idx;
bba95fef 4667 err = skb->len;
bba95fef 4668 out_err:
1b8ec87a 4669 nl80211_finish_wdev_dump(rdev);
bba95fef 4670 return err;
2ec600d6
LCC		 4671}
4672
4673static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4674{
4c476991 4675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4676 int err;
4c476991 4677 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4678 struct mpath_info pinfo;
4679 struct sk_buff *msg;
4680 u8 *dst = NULL;
4681 u8 next_hop[ETH_ALEN];
4682
4683 memset(&pinfo, 0, sizeof(pinfo));
4684
4685 if (!info->attrs[NL80211_ATTR_MAC])
4686 return -EINVAL;
4687
4688 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4689
4c476991
JB		 4690 if (!rdev->ops->get_mpath)
4691 return -EOPNOTSUPP;
2ec600d6 4692
4c476991
JB		 4693 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4694 return -EOPNOTSUPP;
eec60b03 4695
e35e4d28 4696 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4697 if (err)
4c476991 4698 return err;
2ec600d6 4699
fd2120ca 4700 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4701 if (!msg)
4c476991 4702 return -ENOMEM;
2ec600d6 4703
15e47304 4704 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4705 dev, dst, next_hop, &pinfo) < 0) {
4706 nlmsg_free(msg);
4707 return -ENOBUFS;
4708 }
3b85875a 4709
4c476991 4710 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4711}
4712
4713static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4714{
4c476991
JB		 4715 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4716 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4717 u8 *dst = NULL;
4718 u8 *next_hop = NULL;
4719
4720 if (!info->attrs[NL80211_ATTR_MAC])
4721 return -EINVAL;
4722
4723 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4724 return -EINVAL;
4725
4726 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4727 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4728
4c476991
JB		 4729 if (!rdev->ops->change_mpath)
4730 return -EOPNOTSUPP;
35a8efe1 4731
4c476991
JB		 4732 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4733 return -EOPNOTSUPP;
2ec600d6 4734
e35e4d28 4735 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4736}
4c476991 4737
2ec600d6
LCC		 4738static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4739{
4c476991
JB		 4740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4741 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4742 u8 *dst = NULL;
4743 u8 *next_hop = NULL;
4744
4745 if (!info->attrs[NL80211_ATTR_MAC])
4746 return -EINVAL;
4747
4748 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4749 return -EINVAL;
4750
4751 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4752 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4753
4c476991
JB		 4754 if (!rdev->ops->add_mpath)
4755 return -EOPNOTSUPP;
35a8efe1 4756
4c476991
JB		 4757 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4758 return -EOPNOTSUPP;
2ec600d6 4759
e35e4d28 4760 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4761}
4762
4763static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4764{
4c476991
JB		 4765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4766 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4767 u8 *dst = NULL;
4768
4769 if (info->attrs[NL80211_ATTR_MAC])
4770 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4771
4c476991
JB		 4772 if (!rdev->ops->del_mpath)
4773 return -EOPNOTSUPP;
3b85875a 4774
e35e4d28 4775 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4776}
4777
66be7d2b
HR		 4778static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4779{
4780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4781 int err;
4782 struct net_device *dev = info->user_ptr[1];
4783 struct mpath_info pinfo;
4784 struct sk_buff *msg;
4785 u8 *dst = NULL;
4786 u8 mpp[ETH_ALEN];
4787
4788 memset(&pinfo, 0, sizeof(pinfo));
4789
4790 if (!info->attrs[NL80211_ATTR_MAC])
4791 return -EINVAL;
4792
4793 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4794
4795 if (!rdev->ops->get_mpp)
4796 return -EOPNOTSUPP;
4797
4798 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4799 return -EOPNOTSUPP;
4800
4801 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4802 if (err)
4803 return err;
4804
4805 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4806 if (!msg)
4807 return -ENOMEM;
4808
4809 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4810 dev, dst, mpp, &pinfo) < 0) {
4811 nlmsg_free(msg);
4812 return -ENOBUFS;
4813 }
4814
4815 return genlmsg_reply(msg, info);
4816}
4817
4818static int nl80211_dump_mpp(struct sk_buff *skb,
4819 struct netlink_callback *cb)
4820{
4821 struct mpath_info pinfo;
4822 struct cfg80211_registered_device *rdev;
4823 struct wireless_dev *wdev;
4824 u8 dst[ETH_ALEN];
4825 u8 mpp[ETH_ALEN];
4826 int path_idx = cb->args[2];
4827 int err;
4828
4829 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4830 if (err)
4831 return err;
4832
4833 if (!rdev->ops->dump_mpp) {
4834 err = -EOPNOTSUPP;
4835 goto out_err;
4836 }
4837
4838 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4839 err = -EOPNOTSUPP;
4840 goto out_err;
4841 }
4842
4843 while (1) {
4844 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4845 mpp, &pinfo);
4846 if (err == -ENOENT)
4847 break;
4848 if (err)
4849 goto out_err;
4850
4851 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4852 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4853 wdev->netdev, dst, mpp,
4854 &pinfo) < 0)
4855 goto out;
4856
4857 path_idx++;
4858 }
4859
4860 out:
4861 cb->args[2] = path_idx;
4862 err = skb->len;
4863 out_err:
4864 nl80211_finish_wdev_dump(rdev);
4865 return err;
4866}
4867
9f1ba906
JM		 4868static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4869{
4c476991
JB		 4870 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4871 struct net_device *dev = info->user_ptr[1];
c56589ed 4872 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4873 struct bss_parameters params;
c56589ed 4874 int err;
9f1ba906
JM		 4875
4876 memset(&params, 0, sizeof(params));
4877 /* default to not changing parameters */
4878 params.use_cts_prot = -1;
4879 params.use_short_preamble = -1;
4880 params.use_short_slot_time = -1;
fd8aaaf3 4881 params.ap_isolate = -1;
50b12f59 4882 params.ht_opmode = -1;
53cabad7
JB		 4883 params.p2p_ctwindow = -1;
4884 params.p2p_opp_ps = -1;
9f1ba906
JM		 4885
4886 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4887 params.use_cts_prot =
4888 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4889 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4890 params.use_short_preamble =
4891 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4892 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4893 params.use_short_slot_time =
4894 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4895 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4896 params.basic_rates =
4897 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4898 params.basic_rates_len =
4899 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4900 }
fd8aaaf3
FF		 4901 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4902 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4903 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4904 params.ht_opmode =
4905 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4906
53cabad7
JB		 4907 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4908 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4909 return -EINVAL;
4910 params.p2p_ctwindow =
4911 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4912 if (params.p2p_ctwindow < 0)
4913 return -EINVAL;
4914 if (params.p2p_ctwindow != 0 &&
4915 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4916 return -EINVAL;
4917 }
4918
4919 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4920 u8 tmp;
4921
4922 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4923 return -EINVAL;
4924 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4925 if (tmp > 1)
4926 return -EINVAL;
4927 params.p2p_opp_ps = tmp;
4928 if (params.p2p_opp_ps &&
4929 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4930 return -EINVAL;
4931 }
4932
4c476991
JB		 4933 if (!rdev->ops->change_bss)
4934 return -EOPNOTSUPP;
9f1ba906 4935
074ac8df 4936 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4937 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4938 return -EOPNOTSUPP;
3b85875a 4939
c56589ed
SW		 4940 wdev_lock(wdev);
4941 err = rdev_change_bss(rdev, dev, &params);
4942 wdev_unlock(wdev);
4943
4944 return err;
9f1ba906
JM		 4945}
4946
b2e1b302
LR		 4947static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4948{
b2e1b302 4949 char *data = NULL;
05050753 4950 bool is_indoor;
57b5ce07 4951 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 4952 u32 owner_nlportid;
4953
b2e1b302 4954
80778f18
LR		 4955 /*
4956 * You should only get this when cfg80211 hasn't yet initialized
4957 * completely when built-in to the kernel right between the time
4958 * window between nl80211_init() and regulatory_init(), if that is
4959 * even possible.
4960 */
458f4f9e 4961 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4962 return -EINPROGRESS;
80778f18 4963
57b5ce07
LR		 4964 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4965 user_reg_hint_type =
4966 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4967 else
4968 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4969
4970 switch (user_reg_hint_type) {
4971 case NL80211_USER_REG_HINT_USER:
4972 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4973 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4974 return -EINVAL;
4975
4976 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4977 return regulatory_hint_user(data, user_reg_hint_type);
4978 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 4979 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
4980 owner_nlportid = info->snd_portid;
4981 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
4982 } else {
4983 owner_nlportid = 0;
4984 is_indoor = true;
4985 }
4986
4987 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 4988 default:
4989 return -EINVAL;
4990 }
b2e1b302
LR		 4991}
4992
24bdd9f4 4993static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4994 struct genl_info *info)
93da9cc1 4995{
4c476991 4996 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4997 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4998 struct wireless_dev *wdev = dev->ieee80211_ptr;
4999 struct mesh_config cur_params;
5000 int err = 0;
93da9cc1 5001 void *hdr;
5002 struct nlattr *pinfoattr;
5003 struct sk_buff *msg;
5004
29cbe68c
JB		 5005 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5006 return -EOPNOTSUPP;
5007
24bdd9f4 5008 if (!rdev->ops->get_mesh_config)
4c476991 5009 return -EOPNOTSUPP;
f3f92586 5010
29cbe68c
JB		 5011 wdev_lock(wdev);
5012 /* If not connected, get default parameters */
5013 if (!wdev->mesh_id_len)
5014 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5015 else
e35e4d28 5016 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5017 wdev_unlock(wdev);
5018
93da9cc1 5019 if (err)
4c476991 5020 return err;
93da9cc1 5021
5022 /* Draw up a netlink message to send back */
fd2120ca 5023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5024 if (!msg)
5025 return -ENOMEM;
15e47304 5026 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5027 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5028 if (!hdr)
efe1cf0c 5029 goto out;
24bdd9f4 5030 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5031 if (!pinfoattr)
5032 goto nla_put_failure;
9360ffd1
DM		 5033 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5034 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5035 cur_params.dot11MeshRetryTimeout) ||
5036 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5037 cur_params.dot11MeshConfirmTimeout) ||
5038 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5039 cur_params.dot11MeshHoldingTimeout) ||
5040 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5041 cur_params.dot11MeshMaxPeerLinks) ||
5042 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5043 cur_params.dot11MeshMaxRetries) ||
5044 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5045 cur_params.dot11MeshTTL) ||
5046 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5047 cur_params.element_ttl) ||
5048 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5049 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5050 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5051 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5052 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5053 cur_params.dot11MeshHWMPmaxPREQretries) ||
5054 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5055 cur_params.path_refresh_time) ||
5056 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5057 cur_params.min_discovery_timeout) ||
5058 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5059 cur_params.dot11MeshHWMPactivePathTimeout) ||
5060 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5061 cur_params.dot11MeshHWMPpreqMinInterval) ||
5062 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5063 cur_params.dot11MeshHWMPperrMinInterval) ||
5064 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5065 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5066 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5067 cur_params.dot11MeshHWMPRootMode) ||
5068 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5069 cur_params.dot11MeshHWMPRannInterval) ||
5070 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5071 cur_params.dot11MeshGateAnnouncementProtocol) ||
5072 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5073 cur_params.dot11MeshForwarding) ||
5074 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5075 cur_params.rssi_threshold) ||
5076 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5077 cur_params.ht_opmode) ||
5078 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5079 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5080 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5081 cur_params.dot11MeshHWMProotInterval) ||
5082 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5083 cur_params.dot11MeshHWMPconfirmationInterval) ||
5084 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5085 cur_params.power_mode) ||
5086 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5087 cur_params.dot11MeshAwakeWindowDuration) ||
5088 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5089 cur_params.plink_timeout))
9360ffd1 5090 goto nla_put_failure;
93da9cc1 5091 nla_nest_end(msg, pinfoattr);
5092 genlmsg_end(msg, hdr);
4c476991 5093 return genlmsg_reply(msg, info);
93da9cc1 5094
3b85875a 5095 nla_put_failure:
93da9cc1 5096 genlmsg_cancel(msg, hdr);
efe1cf0c 5097 out:
d080e275 5098 nlmsg_free(msg);
4c476991 5099 return -ENOBUFS;
93da9cc1 5100}
5101
b54452b0 5102static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5103 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5104 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5105 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5106 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5107 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5108 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5109 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5110 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5111 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5112 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5113 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5114 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5115 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5116 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5117 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5118 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5119 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5120 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5121 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5122 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5123 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5124 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5125 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5126 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5127 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5128 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5129 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5130 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5131};
5132
c80d545d
JC		 5133static const struct nla_policy
5134 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5135 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5136 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5137 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5138 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5139 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5140 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5141 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5142 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5143 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5144};
5145
24bdd9f4 5146static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5147 struct mesh_config *cfg,
5148 u32 *mask_out)
93da9cc1 5149{
93da9cc1 5150 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5151 u32 mask = 0;
93da9cc1 5152
ea54fba2
MP		 5153#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5154do { \
5155 if (tb[attr]) { \
5156 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5157 return -EINVAL; \
5158 cfg->param = fn(tb[attr]); \
5159 mask |= (1 << (attr - 1)); \
5160 } \
5161} while (0)
bd90fdcc
JB		 5162
5163
24bdd9f4 5164 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5165 return -EINVAL;
5166 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5167 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5168 nl80211_meshconf_params_policy))
93da9cc1 5169 return -EINVAL;
5170
93da9cc1 5171 /* This makes sure that there aren't more than 32 mesh config
5172 * parameters (otherwise our bitfield scheme would not work.) */
5173 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5174
5175 /* Fill in the params struct */
ea54fba2 5176 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5177 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5178 nla_get_u16);
ea54fba2 5179 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5180 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5181 nla_get_u16);
ea54fba2 5182 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5183 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5184 nla_get_u16);
ea54fba2 5185 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5186 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5187 nla_get_u16);
ea54fba2 5188 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5189 mask, NL80211_MESHCONF_MAX_RETRIES,
5190 nla_get_u8);
ea54fba2 5191 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5192 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5193 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5194 mask, NL80211_MESHCONF_ELEMENT_TTL,
5195 nla_get_u8);
ea54fba2 5196 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5197 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5198 nla_get_u8);
ea54fba2
MP		 5199 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5200 1, 255, mask,
a4f606ea
CYY		 5201 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5202 nla_get_u32);
ea54fba2 5203 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5204 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5205 nla_get_u8);
ea54fba2 5206 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5207 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5208 nla_get_u32);
ea54fba2 5209 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5210 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5211 nla_get_u16);
ea54fba2
MP		 5212 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5213 1, 65535, mask,
a4f606ea
CYY		 5214 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5215 nla_get_u32);
93da9cc1 5216 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5217 1, 65535, mask,
5218 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5219 nla_get_u16);
dca7e943 5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5221 1, 65535, mask,
5222 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5223 nla_get_u16);
93da9cc1 5224 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5225 dot11MeshHWMPnetDiameterTraversalTime,
5226 1, 65535, mask,
a4f606ea
CYY		 5227 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5228 nla_get_u16);
ea54fba2
MP		 5229 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5230 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5231 nla_get_u8);
5232 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5233 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5234 nla_get_u16);
63c5723b 5235 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5236 dot11MeshGateAnnouncementProtocol, 0, 1,
5237 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5238 nla_get_u8);
ea54fba2 5239 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5240 mask, NL80211_MESHCONF_FORWARDING,
5241 nla_get_u8);
83374fe9 5242 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5243 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5244 nla_get_s32);
ea54fba2 5245 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5246 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5247 nla_get_u16);
5248 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5249 1, 65535, mask,
ac1073a6
CYY		 5250 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5251 nla_get_u32);
ea54fba2 5252 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5253 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5254 nla_get_u16);
5255 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5256 dot11MeshHWMPconfirmationInterval,
5257 1, 65535, mask,
728b19e5 5258 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5259 nla_get_u16);
3b1c5a53
MP		 5260 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5261 NL80211_MESH_POWER_ACTIVE,
5262 NL80211_MESH_POWER_MAX,
5263 mask, NL80211_MESHCONF_POWER_MODE,
5264 nla_get_u32);
5265 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5266 0, 65535, mask,
5267 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
31f909a2 5268 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538
CT		 5269 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5270 nla_get_u32);
bd90fdcc
JB		 5271 if (mask_out)
5272 *mask_out = mask;
c80d545d 5273
bd90fdcc
JB		 5274 return 0;
5275
5276#undef FILL_IN_MESH_PARAM_IF_SET
5277}
5278
c80d545d
JC		 5279static int nl80211_parse_mesh_setup(struct genl_info *info,
5280 struct mesh_setup *setup)
5281{
bb2798d4 5282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5283 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5284
5285 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5286 return -EINVAL;
5287 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5288 info->attrs[NL80211_ATTR_MESH_SETUP],
5289 nl80211_mesh_setup_params_policy))
5290 return -EINVAL;
5291
d299a1f2
JC		 5292 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5293 setup->sync_method =
5294 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5295 IEEE80211_SYNC_METHOD_VENDOR :
5296 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5297
c80d545d
JC		 5298 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5299 setup->path_sel_proto =
5300 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5301 IEEE80211_PATH_PROTOCOL_VENDOR :
5302 IEEE80211_PATH_PROTOCOL_HWMP;
5303
5304 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5305 setup->path_metric =
5306 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5307 IEEE80211_PATH_METRIC_VENDOR :
5308 IEEE80211_PATH_METRIC_AIRTIME;
5309
581a8b0f
JC		 5310
5311 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5312 struct nlattr *ieattr =
581a8b0f 5313 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5314 if (!is_valid_ie_attr(ieattr))
5315 return -EINVAL;
581a8b0f
JC		 5316 setup->ie = nla_data(ieattr);
5317 setup->ie_len = nla_len(ieattr);
c80d545d 5318 }
bb2798d4
TP		 5319 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5320 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5321 return -EINVAL;
5322 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5323 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5324 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5325 if (setup->is_secure)
5326 setup->user_mpm = true;
c80d545d 5327
6e16d90b
CT		 5328 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5329 if (!setup->user_mpm)
5330 return -EINVAL;
5331 setup->auth_id =
5332 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5333 }
5334
c80d545d
JC		 5335 return 0;
5336}
5337
24bdd9f4 5338static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5339 struct genl_info *info)
bd90fdcc
JB		 5340{
5341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5342 struct net_device *dev = info->user_ptr[1];
29cbe68c 5343 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5344 struct mesh_config cfg;
5345 u32 mask;
5346 int err;
5347
29cbe68c
JB		 5348 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5349 return -EOPNOTSUPP;
5350
24bdd9f4 5351 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5352 return -EOPNOTSUPP;
5353
24bdd9f4 5354 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5355 if (err)
5356 return err;
5357
29cbe68c
JB		 5358 wdev_lock(wdev);
5359 if (!wdev->mesh_id_len)
5360 err = -ENOLINK;
5361
5362 if (!err)
e35e4d28 5363 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5364
5365 wdev_unlock(wdev);
5366
5367 return err;
93da9cc1 5368}
5369
ad30ca2c
AN		 5370static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5371 struct sk_buff *msg)
f130347c 5372{
f130347c
LR		 5373 struct nlattr *nl_reg_rules;
5374 unsigned int i;
f130347c 5375
458f4f9e
JB		 5376 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5377 (regdom->dfs_region &&
5378 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5379 goto nla_put_failure;
458f4f9e 5380
f130347c
LR		 5381 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5382 if (!nl_reg_rules)
ad30ca2c 5383 goto nla_put_failure;
f130347c 5384
458f4f9e 5385 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5386 struct nlattr *nl_reg_rule;
5387 const struct ieee80211_reg_rule *reg_rule;
5388 const struct ieee80211_freq_range *freq_range;
5389 const struct ieee80211_power_rule *power_rule;
97524820 5390 unsigned int max_bandwidth_khz;
f130347c 5391
458f4f9e 5392 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5393 freq_range = &reg_rule->freq_range;
5394 power_rule = &reg_rule->power_rule;
5395
5396 nl_reg_rule = nla_nest_start(msg, i);
5397 if (!nl_reg_rule)
ad30ca2c 5398 goto nla_put_failure;
f130347c 5399
97524820
JD		 5400 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5401 if (!max_bandwidth_khz)
5402 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5403 reg_rule);
5404
9360ffd1
DM		 5405 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5406 reg_rule->flags) ||
5407 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5408 freq_range->start_freq_khz) ||
5409 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5410 freq_range->end_freq_khz) ||
5411 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5412 max_bandwidth_khz) ||
9360ffd1
DM		 5413 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5414 power_rule->max_antenna_gain) ||
5415 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5416 power_rule->max_eirp) ||
5417 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5418 reg_rule->dfs_cac_ms))
ad30ca2c 5419 goto nla_put_failure;
f130347c
LR		 5420
5421 nla_nest_end(msg, nl_reg_rule);
5422 }
5423
5424 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5425 return 0;
5426
5427nla_put_failure:
5428 return -EMSGSIZE;
5429}
5430
5431static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5432{
5433 const struct ieee80211_regdomain *regdom = NULL;
5434 struct cfg80211_registered_device *rdev;
5435 struct wiphy *wiphy = NULL;
5436 struct sk_buff *msg;
5437 void *hdr;
5438
5439 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5440 if (!msg)
5441 return -ENOBUFS;
5442
5443 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5444 NL80211_CMD_GET_REG);
5445 if (!hdr)
5446 goto put_failure;
5447
5448 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5449 bool self_managed;
5450
ad30ca2c
AN		 5451 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5452 if (IS_ERR(rdev)) {
5453 nlmsg_free(msg);
5454 return PTR_ERR(rdev);
5455 }
5456
5457 wiphy = &rdev->wiphy;
1bdd716c
AN		 5458 self_managed = wiphy->regulatory_flags &
5459 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5460 regdom = get_wiphy_regdom(wiphy);
5461
1bdd716c
AN		 5462 /* a self-managed-reg device must have a private regdom */
5463 if (WARN_ON(!regdom && self_managed)) {
5464 nlmsg_free(msg);
5465 return -EINVAL;
5466 }
5467
ad30ca2c
AN		 5468 if (regdom &&
5469 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5470 goto nla_put_failure;
5471 }
5472
5473 if (!wiphy && reg_last_request_cell_base() &&
5474 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5475 NL80211_USER_REG_HINT_CELL_BASE))
5476 goto nla_put_failure;
5477
5478 rcu_read_lock();
5479
5480 if (!regdom)
5481 regdom = rcu_dereference(cfg80211_regdomain);
5482
5483 if (nl80211_put_regdom(regdom, msg))
5484 goto nla_put_failure_rcu;
5485
5486 rcu_read_unlock();
f130347c
LR		 5487
5488 genlmsg_end(msg, hdr);
5fe231e8 5489 return genlmsg_reply(msg, info);
f130347c 5490
458f4f9e
JB		 5491nla_put_failure_rcu:
5492 rcu_read_unlock();
f130347c
LR		 5493nla_put_failure:
5494 genlmsg_cancel(msg, hdr);
efe1cf0c 5495put_failure:
d080e275 5496 nlmsg_free(msg);
5fe231e8 5497 return -EMSGSIZE;
f130347c
LR		 5498}
5499
ad30ca2c
AN		 5500static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5501 u32 seq, int flags, struct wiphy *wiphy,
5502 const struct ieee80211_regdomain *regdom)
5503{
5504 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5505 NL80211_CMD_GET_REG);
5506
5507 if (!hdr)
5508 return -1;
5509
5510 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5511
5512 if (nl80211_put_regdom(regdom, msg))
5513 goto nla_put_failure;
5514
5515 if (!wiphy && reg_last_request_cell_base() &&
5516 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5517 NL80211_USER_REG_HINT_CELL_BASE))
5518 goto nla_put_failure;
5519
5520 if (wiphy &&
5521 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5522 goto nla_put_failure;
5523
1bdd716c
AN		 5524 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5525 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5526 goto nla_put_failure;
5527
053c095a
JB		 5528 genlmsg_end(msg, hdr);
5529 return 0;
ad30ca2c
AN		 5530
5531nla_put_failure:
5532 genlmsg_cancel(msg, hdr);
5533 return -EMSGSIZE;
5534}
5535
5536static int nl80211_get_reg_dump(struct sk_buff *skb,
5537 struct netlink_callback *cb)
5538{
5539 const struct ieee80211_regdomain *regdom = NULL;
5540 struct cfg80211_registered_device *rdev;
5541 int err, reg_idx, start = cb->args[2];
5542
5543 rtnl_lock();
5544
5545 if (cfg80211_regdomain && start == 0) {
5546 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5547 NLM_F_MULTI, NULL,
5548 rtnl_dereference(cfg80211_regdomain));
5549 if (err < 0)
5550 goto out_err;
5551 }
5552
5553 /* the global regdom is idx 0 */
5554 reg_idx = 1;
5555 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5556 regdom = get_wiphy_regdom(&rdev->wiphy);
5557 if (!regdom)
5558 continue;
5559
5560 if (++reg_idx <= start)
5561 continue;
5562
5563 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5564 NLM_F_MULTI, &rdev->wiphy, regdom);
5565 if (err < 0) {
5566 reg_idx--;
5567 break;
5568 }
5569 }
5570
5571 cb->args[2] = reg_idx;
5572 err = skb->len;
5573out_err:
5574 rtnl_unlock();
5575 return err;
5576}
5577
b6863036
JB		 5578#ifdef CONFIG_CFG80211_CRDA_SUPPORT
5579static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5580 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5581 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5582 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5583 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5584 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5585 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5586 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5587};
5588
5589static int parse_reg_rule(struct nlattr *tb[],
5590 struct ieee80211_reg_rule *reg_rule)
5591{
5592 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
5593 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
5594
5595 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5596 return -EINVAL;
5597 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5598 return -EINVAL;
5599 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5600 return -EINVAL;
5601 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5602 return -EINVAL;
5603 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5604 return -EINVAL;
5605
5606 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5607
5608 freq_range->start_freq_khz =
5609 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5610 freq_range->end_freq_khz =
5611 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5612 freq_range->max_bandwidth_khz =
5613 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5614
5615 power_rule->max_eirp =
5616 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5617
5618 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5619 power_rule->max_antenna_gain =
5620 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5621
5622 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5623 reg_rule->dfs_cac_ms =
5624 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5625
5626 return 0;
5627}
5628
b2e1b302
LR		 5629static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5630{
5631 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5632 struct nlattr *nl_reg_rule;
ea372c54
JB		 5633 char *alpha2;
5634 int rem_reg_rules, r;
b2e1b302 5635 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5636 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5637 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5638
5639 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5640 return -EINVAL;
5641
5642 if (!info->attrs[NL80211_ATTR_REG_RULES])
5643 return -EINVAL;
5644
5645 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5646
8b60b078
LR		 5647 if (info->attrs[NL80211_ATTR_DFS_REGION])
5648 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5649
b2e1b302 5650 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5651 rem_reg_rules) {
b2e1b302
LR		 5652 num_rules++;
5653 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5654 return -EINVAL;
b2e1b302
LR		 5655 }
5656
e438768f
LR		 5657 if (!reg_is_valid_request(alpha2))
5658 return -EINVAL;
5659
b2e1b302 5660 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5661 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5662
5663 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5664 if (!rd)
5665 return -ENOMEM;
b2e1b302
LR		 5666
5667 rd->n_reg_rules = num_rules;
5668 rd->alpha2[0] = alpha2[0];
5669 rd->alpha2[1] = alpha2[1];
5670
8b60b078
LR		 5671 /*
5672 * Disable DFS master mode if the DFS region was
5673 * not supported or known on this kernel.
5674 */
5675 if (reg_supported_dfs_region(dfs_region))
5676 rd->dfs_region = dfs_region;
5677
b2e1b302 5678 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5679 rem_reg_rules) {
ae811e21
JB		 5680 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5681 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5682 reg_rule_policy);
5683 if (r)
5684 goto bad_reg;
b2e1b302
LR		 5685 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5686 if (r)
5687 goto bad_reg;
5688
5689 rule_idx++;
5690
d0e18f83
LR		 5691 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5692 r = -EINVAL;
b2e1b302 5693 goto bad_reg;
d0e18f83 5694 }
b2e1b302
LR		 5695 }
5696
c37722bd 5697 r = set_regdom(rd, REGD_SOURCE_CRDA);
6913b49a 5698 /* set_regdom took ownership */
1a919318 5699 rd = NULL;
b2e1b302 5700
d2372b31 5701 bad_reg:
b2e1b302 5702 kfree(rd);
d0e18f83 5703 return r;
b2e1b302 5704}
b6863036 5705#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 5706
83f5e2cf
JB		 5707static int validate_scan_freqs(struct nlattr *freqs)
5708{
5709 struct nlattr *attr1, *attr2;
5710 int n_channels = 0, tmp1, tmp2;
5711
5712 nla_for_each_nested(attr1, freqs, tmp1) {
5713 n_channels++;
5714 /*
5715 * Some hardware has a limited channel list for
5716 * scanning, and it is pretty much nonsensical
5717 * to scan for a channel twice, so disallow that
5718 * and don't require drivers to check that the
5719 * channel list they get isn't longer than what
5720 * they can scan, as long as they can scan all
5721 * the channels they registered at once.
5722 */
5723 nla_for_each_nested(attr2, freqs, tmp2)
5724 if (attr1 != attr2 &&
5725 nla_get_u32(attr1) == nla_get_u32(attr2))
5726 return 0;
5727 }
5728
5729 return n_channels;
5730}
5731
ad2b26ab
JB		 5732static int nl80211_parse_random_mac(struct nlattr **attrs,
5733 u8 *mac_addr, u8 *mac_addr_mask)
5734{
5735 int i;
5736
5737 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 5738 eth_zero_addr(mac_addr);
5739 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 5740 mac_addr[0] = 0x2;
5741 mac_addr_mask[0] = 0x3;
5742
5743 return 0;
5744 }
5745
5746 /* need both or none */
5747 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5748 return -EINVAL;
5749
5750 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5751 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5752
5753 /* don't allow or configure an mcast address */
5754 if (!is_multicast_ether_addr(mac_addr_mask) ||
5755 is_multicast_ether_addr(mac_addr))
5756 return -EINVAL;
5757
5758 /*
5759 * allow users to pass a MAC address that has bits set outside
5760 * of the mask, but don't bother drivers with having to deal
5761 * with such bits
5762 */
5763 for (i = 0; i < ETH_ALEN; i++)
5764 mac_addr[i] &= mac_addr_mask[i];
5765
5766 return 0;
5767}
5768
2a519311
JB		 5769static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5770{
4c476991 5771 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5772 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5773 struct cfg80211_scan_request *request;
2a519311
JB		 5774 struct nlattr *attr;
5775 struct wiphy *wiphy;
83f5e2cf 5776 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5777 size_t ie_len;
2a519311 5778
f4a11bb0
JB		 5779 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5780 return -EINVAL;
5781
79c97e97 5782 wiphy = &rdev->wiphy;
2a519311 5783
4c476991
JB		 5784 if (!rdev->ops->scan)
5785 return -EOPNOTSUPP;
2a519311 5786
f9d15d16 5787 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5788 err = -EBUSY;
5789 goto unlock;
5790 }
2a519311
JB		 5791
5792 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5793 n_channels = validate_scan_freqs(
5794 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5795 if (!n_channels) {
5796 err = -EINVAL;
5797 goto unlock;
5798 }
2a519311 5799 } else {
bdfbec2d 5800 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5801 }
5802
5803 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5804 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5805 n_ssids++;
5806
f9f47529
JB		 5807 if (n_ssids > wiphy->max_scan_ssids) {
5808 err = -EINVAL;
5809 goto unlock;
5810 }
2a519311 5811
70692ad2
JM		 5812 if (info->attrs[NL80211_ATTR_IE])
5813 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5814 else
5815 ie_len = 0;
5816
f9f47529
JB		 5817 if (ie_len > wiphy->max_scan_ie_len) {
5818 err = -EINVAL;
5819 goto unlock;
5820 }
18a83659 5821
2a519311 5822 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5823 + sizeof(*request->ssids) * n_ssids
5824 + sizeof(*request->channels) * n_channels
70692ad2 5825 + ie_len, GFP_KERNEL);
f9f47529
JB		 5826 if (!request) {
5827 err = -ENOMEM;
5828 goto unlock;
5829 }
2a519311 5830
2a519311 5831 if (n_ssids)
5ba63533 5832 request->ssids = (void *)&request->channels[n_channels];
2a519311 5833 request->n_ssids = n_ssids;
70692ad2 5834 if (ie_len) {
13874e4b 5835 if (n_ssids)
70692ad2
JM		 5836 request->ie = (void *)(request->ssids + n_ssids);
5837 else
5838 request->ie = (void *)(request->channels + n_channels);
5839 }
2a519311 5840
584991dc 5841 i = 0;
2a519311
JB		 5842 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5843 /* user specified, bail out if channel not found */
2a519311 5844 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5845 struct ieee80211_channel *chan;
5846
5847 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5848
5849 if (!chan) {
2a519311
JB		 5850 err = -EINVAL;
5851 goto out_free;
5852 }
584991dc
JB		 5853
5854 /* ignore disabled channels */
5855 if (chan->flags & IEEE80211_CHAN_DISABLED)
5856 continue;
5857
5858 request->channels[i] = chan;
2a519311
JB		 5859 i++;
5860 }
5861 } else {
34850ab2
JB		 5862 enum ieee80211_band band;
5863
2a519311 5864 /* all channels */
2a519311
JB		 5865 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5866 int j;
5867 if (!wiphy->bands[band])
5868 continue;
5869 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5870 struct ieee80211_channel *chan;
5871
5872 chan = &wiphy->bands[band]->channels[j];
5873
5874 if (chan->flags & IEEE80211_CHAN_DISABLED)
5875 continue;
5876
5877 request->channels[i] = chan;
2a519311
JB		 5878 i++;
5879 }
5880 }
5881 }
5882
584991dc
JB		 5883 if (!i) {
5884 err = -EINVAL;
5885 goto out_free;
5886 }
5887
5888 request->n_channels = i;
5889
2a519311 5890 i = 0;
13874e4b 5891 if (n_ssids) {
2a519311 5892 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5893 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5894 err = -EINVAL;
5895 goto out_free;
5896 }
57a27e1d 5897 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5898 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5899 i++;
5900 }
5901 }
5902
70692ad2
JM		 5903 if (info->attrs[NL80211_ATTR_IE]) {
5904 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5905 memcpy((void *)request->ie,
5906 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5907 request->ie_len);
5908 }
5909
34850ab2 5910 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5911 if (wiphy->bands[i])
5912 request->rates[i] =
5913 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5914
5915 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5916 nla_for_each_nested(attr,
5917 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5918 tmp) {
5919 enum ieee80211_band band = nla_type(attr);
5920
84404623 5921 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5922 err = -EINVAL;
5923 goto out_free;
5924 }
1b09cd82
FF		 5925
5926 if (!wiphy->bands[band])
5927 continue;
5928
34850ab2
JB		 5929 err = ieee80211_get_ratemask(wiphy->bands[band],
5930 nla_data(attr),
5931 nla_len(attr),
5932 &request->rates[band]);
5933 if (err)
5934 goto out_free;
5935 }
5936 }
5937
46856bbf 5938 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5939 request->flags = nla_get_u32(
5940 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5941 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5942 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5943 err = -EOPNOTSUPP;
5944 goto out_free;
5945 }
ad2b26ab
JB		 5946
5947 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5948 if (!(wiphy->features &
5949 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5950 err = -EOPNOTSUPP;
5951 goto out_free;
5952 }
5953
5954 if (wdev->current_bss) {
5955 err = -EOPNOTSUPP;
5956 goto out_free;
5957 }
5958
5959 err = nl80211_parse_random_mac(info->attrs,
5960 request->mac_addr,
5961 request->mac_addr_mask);
5962 if (err)
5963 goto out_free;
5964 }
46856bbf 5965 }
ed473771 5966
e9f935e3
RM		 5967 request->no_cck =
5968 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5969
fd014284 5970 request->wdev = wdev;
79c97e97 5971 request->wiphy = &rdev->wiphy;
15d6030b 5972 request->scan_start = jiffies;
2a519311 5973
79c97e97 5974 rdev->scan_req = request;
e35e4d28 5975 err = rdev_scan(rdev, request);
2a519311 5976
463d0183 5977 if (!err) {
fd014284
JB		 5978 nl80211_send_scan_start(rdev, wdev);
5979 if (wdev->netdev)
5980 dev_hold(wdev->netdev);
4c476991 5981 } else {
2a519311 5982 out_free:
79c97e97 5983 rdev->scan_req = NULL;
2a519311
JB		 5984 kfree(request);
5985 }
3b85875a 5986
f9f47529 5987 unlock:
2a519311
JB		 5988 return err;
5989}
5990
3b06d277
AS		 5991static int
5992nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
5993 struct cfg80211_sched_scan_request *request,
5994 struct nlattr **attrs)
5995{
5996 int tmp, err, i = 0;
5997 struct nlattr *attr;
5998
5999 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6000 u32 interval;
6001
6002 /*
6003 * If scan plans are not specified,
6004 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6005 * case one scan plan will be set with the specified scan
6006 * interval and infinite number of iterations.
6007 */
6008 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6009 return -EINVAL;
6010
6011 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6012 if (!interval)
6013 return -EINVAL;
6014
6015 request->scan_plans[0].interval =
6016 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6017 if (!request->scan_plans[0].interval)
6018 return -EINVAL;
6019
6020 if (request->scan_plans[0].interval >
6021 wiphy->max_sched_scan_plan_interval)
6022 request->scan_plans[0].interval =
6023 wiphy->max_sched_scan_plan_interval;
6024
6025 return 0;
6026 }
6027
6028 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6029 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6030
6031 if (WARN_ON(i >= n_plans))
6032 return -EINVAL;
6033
6034 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6035 nla_data(attr), nla_len(attr),
6036 nl80211_plan_policy);
6037 if (err)
6038 return err;
6039
6040 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6041 return -EINVAL;
6042
6043 request->scan_plans[i].interval =
6044 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6045 if (!request->scan_plans[i].interval ||
6046 request->scan_plans[i].interval >
6047 wiphy->max_sched_scan_plan_interval)
6048 return -EINVAL;
6049
6050 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6051 request->scan_plans[i].iterations =
6052 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6053 if (!request->scan_plans[i].iterations ||
6054 (request->scan_plans[i].iterations >
6055 wiphy->max_sched_scan_plan_iterations))
6056 return -EINVAL;
6057 } else if (i < n_plans - 1) {
6058 /*
6059 * All scan plans but the last one must specify
6060 * a finite number of iterations
6061 */
6062 return -EINVAL;
6063 }
6064
6065 i++;
6066 }
6067
6068 /*
6069 * The last scan plan must not specify the number of
6070 * iterations, it is supposed to run infinitely
6071 */
6072 if (request->scan_plans[n_plans - 1].iterations)
6073 return -EINVAL;
6074
6075 return 0;
6076}
6077
256da02d 6078static struct cfg80211_sched_scan_request *
ad2b26ab 6079nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6080 struct nlattr **attrs)
807f8a8c
LC		 6081{
6082 struct cfg80211_sched_scan_request *request;
807f8a8c 6083 struct nlattr *attr;
3b06d277 6084 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
807f8a8c
LC		 6085 enum ieee80211_band band;
6086 size_t ie_len;
a1f1c21c 6087 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6088 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6089
256da02d
LC		 6090 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6091 return ERR_PTR(-EINVAL);
807f8a8c 6092
256da02d 6093 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6094 n_channels = validate_scan_freqs(
256da02d 6095 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6096 if (!n_channels)
256da02d 6097 return ERR_PTR(-EINVAL);
807f8a8c 6098 } else {
bdfbec2d 6099 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6100 }
6101
256da02d
LC		 6102 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6103 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6104 tmp)
6105 n_ssids++;
6106
93b6aa69 6107 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6108 return ERR_PTR(-EINVAL);
807f8a8c 6109
ea73cbce
JB		 6110 /*
6111 * First, count the number of 'real' matchsets. Due to an issue with
6112 * the old implementation, matchsets containing only the RSSI attribute
6113 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6114 * RSSI for all matchsets, rather than their own matchset for reporting
6115 * all APs with a strong RSSI. This is needed to be compatible with
6116 * older userspace that treated a matchset with only the RSSI as the
6117 * global RSSI for all other matchsets - if there are other matchsets.
6118 */
256da02d 6119 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6120 nla_for_each_nested(attr,
256da02d 6121 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6122 tmp) {
6123 struct nlattr *rssi;
6124
6125 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6126 nla_data(attr), nla_len(attr),
6127 nl80211_match_policy);
6128 if (err)
256da02d 6129 return ERR_PTR(err);
ea73cbce
JB		 6130 /* add other standalone attributes here */
6131 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6132 n_match_sets++;
6133 continue;
6134 }
6135 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6136 if (rssi)
6137 default_match_rssi = nla_get_s32(rssi);
6138 }
6139 }
6140
6141 /* However, if there's no other matchset, add the RSSI one */
6142 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6143 n_match_sets = 1;
a1f1c21c
LC		 6144
6145 if (n_match_sets > wiphy->max_match_sets)
256da02d 6146 return ERR_PTR(-EINVAL);
a1f1c21c 6147
256da02d
LC		 6148 if (attrs[NL80211_ATTR_IE])
6149 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6150 else
6151 ie_len = 0;
6152
5a865bad 6153 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6154 return ERR_PTR(-EINVAL);
c10841ca 6155
3b06d277
AS		 6156 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6157 /*
6158 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6159 * each scan plan already specifies its own interval
6160 */
6161 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6162 return ERR_PTR(-EINVAL);
6163
6164 nla_for_each_nested(attr,
6165 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6166 n_plans++;
6167 } else {
6168 /*
6169 * The scan interval attribute is kept for backward
6170 * compatibility. If no scan plans are specified and sched scan
6171 * interval is specified, one scan plan will be set with this
6172 * scan interval and infinite number of iterations.
6173 */
6174 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6175 return ERR_PTR(-EINVAL);
6176
6177 n_plans = 1;
6178 }
6179
6180 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6181 return ERR_PTR(-EINVAL);
6182
807f8a8c 6183 request = kzalloc(sizeof(*request)
a2cd43c5 6184 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6185 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6186 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6187 + sizeof(*request->channels) * n_channels
807f8a8c 6188 + ie_len, GFP_KERNEL);
256da02d
LC		 6189 if (!request)
6190 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6191
6192 if (n_ssids)
6193 request->ssids = (void *)&request->channels[n_channels];
6194 request->n_ssids = n_ssids;
6195 if (ie_len) {
13874e4b 6196 if (n_ssids)
807f8a8c
LC		 6197 request->ie = (void *)(request->ssids + n_ssids);
6198 else
6199 request->ie = (void *)(request->channels + n_channels);
6200 }
6201
a1f1c21c
LC		 6202 if (n_match_sets) {
6203 if (request->ie)
6204 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6205 else if (n_ssids)
a1f1c21c
LC		 6206 request->match_sets =
6207 (void *)(request->ssids + n_ssids);
6208 else
6209 request->match_sets =
6210 (void *)(request->channels + n_channels);
6211 }
6212 request->n_match_sets = n_match_sets;
6213
3b06d277
AS		 6214 if (n_match_sets)
6215 request->scan_plans = (void *)(request->match_sets +
6216 n_match_sets);
6217 else if (request->ie)
6218 request->scan_plans = (void *)(request->ie + ie_len);
6219 else if (n_ssids)
6220 request->scan_plans = (void *)(request->ssids + n_ssids);
6221 else
6222 request->scan_plans = (void *)(request->channels + n_channels);
6223
6224 request->n_scan_plans = n_plans;
6225
807f8a8c 6226 i = 0;
256da02d 6227 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6228 /* user specified, bail out if channel not found */
6229 nla_for_each_nested(attr,
256da02d 6230 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6231 tmp) {
6232 struct ieee80211_channel *chan;
6233
6234 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6235
6236 if (!chan) {
6237 err = -EINVAL;
6238 goto out_free;
6239 }
6240
6241 /* ignore disabled channels */
6242 if (chan->flags & IEEE80211_CHAN_DISABLED)
6243 continue;
6244
6245 request->channels[i] = chan;
6246 i++;
6247 }
6248 } else {
6249 /* all channels */
6250 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6251 int j;
6252 if (!wiphy->bands[band])
6253 continue;
6254 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6255 struct ieee80211_channel *chan;
6256
6257 chan = &wiphy->bands[band]->channels[j];
6258
6259 if (chan->flags & IEEE80211_CHAN_DISABLED)
6260 continue;
6261
6262 request->channels[i] = chan;
6263 i++;
6264 }
6265 }
6266 }
6267
6268 if (!i) {
6269 err = -EINVAL;
6270 goto out_free;
6271 }
6272
6273 request->n_channels = i;
6274
6275 i = 0;
13874e4b 6276 if (n_ssids) {
256da02d 6277 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6278 tmp) {
57a27e1d 6279 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6280 err = -EINVAL;
6281 goto out_free;
6282 }
57a27e1d 6283 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6284 memcpy(request->ssids[i].ssid, nla_data(attr),
6285 nla_len(attr));
807f8a8c
LC		 6286 i++;
6287 }
6288 }
6289
a1f1c21c 6290 i = 0;
256da02d 6291 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6292 nla_for_each_nested(attr,
256da02d 6293 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6294 tmp) {
88e920b4 6295 struct nlattr *ssid, *rssi;
a1f1c21c 6296
ae811e21
JB		 6297 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6298 nla_data(attr), nla_len(attr),
6299 nl80211_match_policy);
6300 if (err)
6301 goto out_free;
4a4ab0d7 6302 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6303 if (ssid) {
ea73cbce
JB		 6304 if (WARN_ON(i >= n_match_sets)) {
6305 /* this indicates a programming error,
6306 * the loop above should have verified
6307 * things properly
6308 */
6309 err = -EINVAL;
6310 goto out_free;
6311 }
6312
a1f1c21c
LC		 6313 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6314 err = -EINVAL;
6315 goto out_free;
6316 }
6317 memcpy(request->match_sets[i].ssid.ssid,
6318 nla_data(ssid), nla_len(ssid));
6319 request->match_sets[i].ssid.ssid_len =
6320 nla_len(ssid);
ea73cbce
JB		 6321 /* special attribute - old implemenation w/a */
6322 request->match_sets[i].rssi_thold =
6323 default_match_rssi;
6324 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6325 if (rssi)
6326 request->match_sets[i].rssi_thold =
6327 nla_get_s32(rssi);
a1f1c21c
LC		 6328 }
6329 i++;
6330 }
ea73cbce
JB		 6331
6332 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6333 if (i == 0 && n_match_sets)
ea73cbce
JB		 6334 request->match_sets[0].rssi_thold = default_match_rssi;
6335
6336 request->min_rssi_thold = INT_MAX;
6337 for (i = 0; i < n_match_sets; i++)
6338 request->min_rssi_thold =
6339 min(request->match_sets[i].rssi_thold,
6340 request->min_rssi_thold);
6341 } else {
6342 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6343 }
6344
9900e484
JB		 6345 if (ie_len) {
6346 request->ie_len = ie_len;
807f8a8c 6347 memcpy((void *)request->ie,
256da02d 6348 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6349 request->ie_len);
6350 }
6351
256da02d 6352 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6353 request->flags = nla_get_u32(
256da02d 6354 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6355 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6356 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6357 err = -EOPNOTSUPP;
6358 goto out_free;
6359 }
ad2b26ab
JB		 6360
6361 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6362 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6363
6364 if (!wdev) /* must be net-detect */
6365 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6366
6367 if (!(wiphy->features & flg)) {
6368 err = -EOPNOTSUPP;
6369 goto out_free;
6370 }
6371
6372 if (wdev && wdev->current_bss) {
6373 err = -EOPNOTSUPP;
6374 goto out_free;
6375 }
6376
6377 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6378 request->mac_addr_mask);
6379 if (err)
6380 goto out_free;
6381 }
46856bbf 6382 }
ed473771 6383
9c748934
LC		 6384 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6385 request->delay =
6386 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6387
3b06d277
AS		 6388 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6389 if (err)
6390 goto out_free;
6391
15d6030b 6392 request->scan_start = jiffies;
807f8a8c 6393
256da02d 6394 return request;
807f8a8c
LC		 6395
6396out_free:
6397 kfree(request);
256da02d
LC		 6398 return ERR_PTR(err);
6399}
6400
6401static int nl80211_start_sched_scan(struct sk_buff *skb,
6402 struct genl_info *info)
6403{
6404 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6405 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6406 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6407 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6408 int err;
6409
6410 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6411 !rdev->ops->sched_scan_start)
6412 return -EOPNOTSUPP;
6413
6414 if (rdev->sched_scan_req)
6415 return -EINPROGRESS;
6416
31a60ed1
JR		 6417 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6418 info->attrs);
6419
6420 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6421 if (err)
6422 goto out_err;
6423
31a60ed1 6424 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6425 if (err)
6426 goto out_free;
6427
31a60ed1
JR		 6428 sched_scan_req->dev = dev;
6429 sched_scan_req->wiphy = &rdev->wiphy;
6430
93a1e86c
JR		 6431 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6432 sched_scan_req->owner_nlportid = info->snd_portid;
6433
31a60ed1 6434 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6435
6436 nl80211_send_sched_scan(rdev, dev,
6437 NL80211_CMD_START_SCHED_SCAN);
6438 return 0;
6439
6440out_free:
31a60ed1 6441 kfree(sched_scan_req);
256da02d 6442out_err:
807f8a8c
LC		 6443 return err;
6444}
6445
6446static int nl80211_stop_sched_scan(struct sk_buff *skb,
6447 struct genl_info *info)
6448{
6449 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6450
6451 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6452 !rdev->ops->sched_scan_stop)
6453 return -EOPNOTSUPP;
6454
5fe231e8 6455 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6456}
6457
04f39047
SW		 6458static int nl80211_start_radar_detection(struct sk_buff *skb,
6459 struct genl_info *info)
6460{
6461 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6462 struct net_device *dev = info->user_ptr[1];
6463 struct wireless_dev *wdev = dev->ieee80211_ptr;
6464 struct cfg80211_chan_def chandef;
55f7435c 6465 enum nl80211_dfs_regions dfs_region;
31559f35 6466 unsigned int cac_time_ms;
04f39047
SW		 6467 int err;
6468
55f7435c
LR		 6469 dfs_region = reg_get_dfs_region(wdev->wiphy);
6470 if (dfs_region == NL80211_DFS_UNSET)
6471 return -EINVAL;
6472
04f39047
SW		 6473 err = nl80211_parse_chandef(rdev, info, &chandef);
6474 if (err)
6475 return err;
6476
ff311bc1
SW		 6477 if (netif_carrier_ok(dev))
6478 return -EBUSY;
6479
04f39047
SW		 6480 if (wdev->cac_started)
6481 return -EBUSY;
6482
2beb6dab 6483 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6484 wdev->iftype);
04f39047
SW		 6485 if (err < 0)
6486 return err;
6487
6488 if (err == 0)
6489 return -EINVAL;
6490
fe7c3a1f 6491 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6492 return -EINVAL;
6493
6494 if (!rdev->ops->start_radar_detection)
6495 return -EOPNOTSUPP;
6496
31559f35
JD		 6497 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6498 if (WARN_ON(!cac_time_ms))
6499 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6500
6501 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6502 cac_time_ms);
04f39047 6503 if (!err) {
9e0e2961 6504 wdev->chandef = chandef;
04f39047
SW		 6505 wdev->cac_started = true;
6506 wdev->cac_start_time = jiffies;
31559f35 6507 wdev->cac_time_ms = cac_time_ms;
04f39047 6508 }
04f39047
SW		 6509 return err;
6510}
6511
16ef1fe2
SW		 6512static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6513{
6514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6515 struct net_device *dev = info->user_ptr[1];
6516 struct wireless_dev *wdev = dev->ieee80211_ptr;
6517 struct cfg80211_csa_settings params;
6518 /* csa_attrs is defined static to avoid waste of stack size - this
6519 * function is called under RTNL lock, so this should not be a problem.
6520 */
6521 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6522 int err;
ee4bc9e7 6523 bool need_new_beacon = false;
9a774c78 6524 int len, i;
252e07ca 6525 u32 cs_count;
16ef1fe2
SW		 6526
6527 if (!rdev->ops->channel_switch ||
6528 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6529 return -EOPNOTSUPP;
6530
ee4bc9e7
SW		 6531 switch (dev->ieee80211_ptr->iftype) {
6532 case NL80211_IFTYPE_AP:
6533 case NL80211_IFTYPE_P2P_GO:
6534 need_new_beacon = true;
6535
6536 /* useless if AP is not running */
6537 if (!wdev->beacon_interval)
1ff79dfa 6538 return -ENOTCONN;
ee4bc9e7
SW		 6539 break;
6540 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6541 if (!wdev->ssid_len)
6542 return -ENOTCONN;
6543 break;
c6da674a 6544 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6545 if (!wdev->mesh_id_len)
6546 return -ENOTCONN;
ee4bc9e7
SW		 6547 break;
6548 default:
16ef1fe2 6549 return -EOPNOTSUPP;
ee4bc9e7 6550 }
16ef1fe2
SW		 6551
6552 memset(&params, 0, sizeof(params));
6553
6554 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6555 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6556 return -EINVAL;
6557
6558 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6559 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6560 return -EINVAL;
6561
252e07ca
LC		 6562 /* Even though the attribute is u32, the specification says
6563 * u8, so let's make sure we don't overflow.
6564 */
6565 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6566 if (cs_count > 255)
6567 return -EINVAL;
6568
6569 params.count = cs_count;
16ef1fe2 6570
ee4bc9e7
SW		 6571 if (!need_new_beacon)
6572 goto skip_beacons;
6573
16ef1fe2
SW		 6574 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6575 if (err)
6576 return err;
6577
6578 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6579 info->attrs[NL80211_ATTR_CSA_IES],
6580 nl80211_policy);
6581 if (err)
6582 return err;
6583
6584 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6585 if (err)
6586 return err;
6587
6588 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6589 return -EINVAL;
6590
9a774c78
AO		 6591 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6592 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6593 return -EINVAL;
6594
9a774c78
AO		 6595 params.n_counter_offsets_beacon = len / sizeof(u16);
6596 if (rdev->wiphy.max_num_csa_counters &&
6597 (params.n_counter_offsets_beacon >
6598 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6599 return -EINVAL;
6600
9a774c78
AO		 6601 params.counter_offsets_beacon =
6602 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6603
6604 /* sanity checks - counters should fit and be the same */
6605 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6606 u16 offset = params.counter_offsets_beacon[i];
6607
6608 if (offset >= params.beacon_csa.tail_len)
6609 return -EINVAL;
6610
6611 if (params.beacon_csa.tail[offset] != params.count)
6612 return -EINVAL;
6613 }
6614
16ef1fe2 6615 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6616 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6617 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6618 return -EINVAL;
6619
9a774c78
AO		 6620 params.n_counter_offsets_presp = len / sizeof(u16);
6621 if (rdev->wiphy.max_num_csa_counters &&
6622 (params.n_counter_offsets_beacon >
6623 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6624 return -EINVAL;
9a774c78
AO		 6625
6626 params.counter_offsets_presp =
6627 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6628
6629 /* sanity checks - counters should fit and be the same */
6630 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6631 u16 offset = params.counter_offsets_presp[i];
6632
6633 if (offset >= params.beacon_csa.probe_resp_len)
6634 return -EINVAL;
6635
6636 if (params.beacon_csa.probe_resp[offset] !=
6637 params.count)
6638 return -EINVAL;
6639 }
16ef1fe2
SW		 6640 }
6641
ee4bc9e7 6642skip_beacons:
16ef1fe2
SW		 6643 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6644 if (err)
6645 return err;
6646
923b352f
AN		 6647 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
6648 wdev->iftype))
16ef1fe2
SW		 6649 return -EINVAL;
6650
2beb6dab
LC		 6651 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6652 &params.chandef,
6653 wdev->iftype);
6654 if (err < 0)
6655 return err;
6656
dcc6c2f5 6657 if (err > 0)
2beb6dab 6658 params.radar_required = true;
16ef1fe2 6659
16ef1fe2
SW		 6660 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6661 params.block_tx = true;
6662
c56589ed
SW		 6663 wdev_lock(wdev);
6664 err = rdev_channel_switch(rdev, dev, &params);
6665 wdev_unlock(wdev);
6666
6667 return err;
16ef1fe2
SW		 6668}
6669
9720bb3a
JB		 6670static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6671 u32 seq, int flags,
2a519311 6672 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6673 struct wireless_dev *wdev,
6674 struct cfg80211_internal_bss *intbss)
2a519311 6675{
48ab905d 6676 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6677 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6678 void *hdr;
6679 struct nlattr *bss;
48ab905d
JB		 6680
6681 ASSERT_WDEV_LOCK(wdev);
2a519311 6682
15e47304 6683 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6684 NL80211_CMD_NEW_SCAN_RESULTS);
6685 if (!hdr)
6686 return -1;
6687
9720bb3a
JB		 6688 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6689
97990a06
JB		 6690 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6691 goto nla_put_failure;
6692 if (wdev->netdev &&
9360ffd1
DM		 6693 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6694 goto nla_put_failure;
97990a06
JB		 6695 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6696 goto nla_put_failure;
2a519311
JB		 6697
6698 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6699 if (!bss)
6700 goto nla_put_failure;
9360ffd1 6701 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6702 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6703 goto nla_put_failure;
9caf0364
JB		 6704
6705 rcu_read_lock();
0e227084
JB		 6706 /* indicate whether we have probe response data or not */
6707 if (rcu_access_pointer(res->proberesp_ies) &&
6708 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6709 goto fail_unlock_rcu;
6710
6711 /* this pointer prefers to be pointed to probe response data
6712 * but is always valid
6713 */
9caf0364 6714 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6715 if (ies) {
6716 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6717 goto fail_unlock_rcu;
8cef2c9d
JB		 6718 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6719 ies->len, ies->data))
6720 goto fail_unlock_rcu;
9caf0364 6721 }
0e227084
JB		 6722
6723 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6724 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6725 if (ies && ies->from_beacon) {
6726 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6727 goto fail_unlock_rcu;
6728 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6729 ies->len, ies->data))
6730 goto fail_unlock_rcu;
9caf0364
JB		 6731 }
6732 rcu_read_unlock();
6733
9360ffd1
DM		 6734 if (res->beacon_interval &&
6735 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6736 goto nla_put_failure;
6737 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6738 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6739 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6740 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6741 jiffies_to_msecs(jiffies - intbss->ts)))
6742 goto nla_put_failure;
2a519311 6743
6e19bc4b
DS		 6744 if (intbss->ts_boottime &&
6745 nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
6746 intbss->ts_boottime))
6747 goto nla_put_failure;
6748
77965c97 6749 switch (rdev->wiphy.signal_type) {
2a519311 6750 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6751 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6752 goto nla_put_failure;
2a519311
JB		 6753 break;
6754 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6755 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6756 goto nla_put_failure;
2a519311
JB		 6757 break;
6758 default:
6759 break;
6760 }
6761
48ab905d 6762 switch (wdev->iftype) {
074ac8df 6763 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6764 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6765 if (intbss == wdev->current_bss &&
6766 nla_put_u32(msg, NL80211_BSS_STATUS,
6767 NL80211_BSS_STATUS_ASSOCIATED))
6768 goto nla_put_failure;
48ab905d
JB		 6769 break;
6770 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6771 if (intbss == wdev->current_bss &&
6772 nla_put_u32(msg, NL80211_BSS_STATUS,
6773 NL80211_BSS_STATUS_IBSS_JOINED))
6774 goto nla_put_failure;
48ab905d
JB		 6775 break;
6776 default:
6777 break;
6778 }
6779
2a519311
JB		 6780 nla_nest_end(msg, bss);
6781
053c095a
JB		 6782 genlmsg_end(msg, hdr);
6783 return 0;
2a519311 6784
8cef2c9d
JB		 6785 fail_unlock_rcu:
6786 rcu_read_unlock();
2a519311
JB		 6787 nla_put_failure:
6788 genlmsg_cancel(msg, hdr);
6789 return -EMSGSIZE;
6790}
6791
97990a06 6792static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6793{
48ab905d 6794 struct cfg80211_registered_device *rdev;
2a519311 6795 struct cfg80211_internal_bss *scan;
48ab905d 6796 struct wireless_dev *wdev;
97990a06 6797 int start = cb->args[2], idx = 0;
2a519311
JB		 6798 int err;
6799
97990a06 6800 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6801 if (err)
6802 return err;
2a519311 6803
48ab905d
JB		 6804 wdev_lock(wdev);
6805 spin_lock_bh(&rdev->bss_lock);
6806 cfg80211_bss_expire(rdev);
6807
9720bb3a
JB		 6808 cb->seq = rdev->bss_generation;
6809
48ab905d 6810 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6811 if (++idx <= start)
6812 continue;
9720bb3a 6813 if (nl80211_send_bss(skb, cb,
2a519311 6814 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6815 rdev, wdev, scan) < 0) {
2a519311 6816 idx--;
67748893 6817 break;
2a519311
JB		 6818 }
6819 }
6820
48ab905d
JB		 6821 spin_unlock_bh(&rdev->bss_lock);
6822 wdev_unlock(wdev);
2a519311 6823
97990a06
JB		 6824 cb->args[2] = idx;
6825 nl80211_finish_wdev_dump(rdev);
2a519311 6826
67748893 6827 return skb->len;
2a519311
JB		 6828}
6829
15e47304 6830static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 6831 int flags, struct net_device *dev,
6832 bool allow_radio_stats,
6833 struct survey_info *survey)
61fa713c
HS		 6834{
6835 void *hdr;
6836 struct nlattr *infoattr;
6837
11f78ac3
JB		 6838 /* skip radio stats if userspace didn't request them */
6839 if (!survey->channel && !allow_radio_stats)
6840 return 0;
6841
15e47304 6842 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6843 NL80211_CMD_NEW_SURVEY_RESULTS);
6844 if (!hdr)
6845 return -ENOMEM;
6846
9360ffd1
DM		 6847 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6848 goto nla_put_failure;
61fa713c
HS		 6849
6850 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6851 if (!infoattr)
6852 goto nla_put_failure;
6853
11f78ac3
JB		 6854 if (survey->channel &&
6855 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 6856 survey->channel->center_freq))
6857 goto nla_put_failure;
6858
6859 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6860 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6861 goto nla_put_failure;
6862 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6863 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6864 goto nla_put_failure;
4ed20beb
JB		 6865 if ((survey->filled & SURVEY_INFO_TIME) &&
6866 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6867 survey->time))
9360ffd1 6868 goto nla_put_failure;
4ed20beb
JB		 6869 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6870 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6871 survey->time_busy))
9360ffd1 6872 goto nla_put_failure;
4ed20beb
JB		 6873 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6874 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6875 survey->time_ext_busy))
9360ffd1 6876 goto nla_put_failure;
4ed20beb
JB		 6877 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6878 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6879 survey->time_rx))
9360ffd1 6880 goto nla_put_failure;
4ed20beb
JB		 6881 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6882 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6883 survey->time_tx))
9360ffd1 6884 goto nla_put_failure;
052536ab
JB		 6885 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6886 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6887 survey->time_scan))
6888 goto nla_put_failure;
61fa713c
HS		 6889
6890 nla_nest_end(msg, infoattr);
6891
053c095a
JB		 6892 genlmsg_end(msg, hdr);
6893 return 0;
61fa713c
HS		 6894
6895 nla_put_failure:
6896 genlmsg_cancel(msg, hdr);
6897 return -EMSGSIZE;
6898}
6899
11f78ac3 6900static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 6901{
6902 struct survey_info survey;
1b8ec87a 6903 struct cfg80211_registered_device *rdev;
97990a06
JB		 6904 struct wireless_dev *wdev;
6905 int survey_idx = cb->args[2];
61fa713c 6906 int res;
11f78ac3 6907 bool radio_stats;
61fa713c 6908
1b8ec87a 6909 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6910 if (res)
6911 return res;
61fa713c 6912
11f78ac3
JB		 6913 /* prepare_wdev_dump parsed the attributes */
6914 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6915
97990a06
JB		 6916 if (!wdev->netdev) {
6917 res = -EINVAL;
6918 goto out_err;
6919 }
6920
1b8ec87a 6921 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6922 res = -EOPNOTSUPP;
6923 goto out_err;
6924 }
6925
6926 while (1) {
1b8ec87a 6927 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6928 if (res == -ENOENT)
6929 break;
6930 if (res)
6931 goto out_err;
6932
11f78ac3
JB		 6933 /* don't send disabled channels, but do send non-channel data */
6934 if (survey.channel &&
6935 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6936 survey_idx++;
6937 continue;
6938 }
6939
61fa713c 6940 if (nl80211_send_survey(skb,
15e47304 6941 NETLINK_CB(cb->skb).portid,
61fa713c 6942 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 6943 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 6944 goto out;
6945 survey_idx++;
6946 }
6947
6948 out:
97990a06 6949 cb->args[2] = survey_idx;
61fa713c
HS		 6950 res = skb->len;
6951 out_err:
1b8ec87a 6952 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6953 return res;
6954}
6955
b23aa676
SO		 6956static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6957{
6958 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6959 NL80211_WPA_VERSION_2));
6960}
6961
636a5d36
JM		 6962static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6963{
4c476991
JB		 6964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6965 struct net_device *dev = info->user_ptr[1];
19957bb3 6966 struct ieee80211_channel *chan;
e39e5b5e
JM		 6967 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6968 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6969 enum nl80211_auth_type auth_type;
fffd0934 6970 struct key_parse key;
d5cdfacb 6971 bool local_state_change;
636a5d36 6972
f4a11bb0
JB		 6973 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6974 return -EINVAL;
6975
6976 if (!info->attrs[NL80211_ATTR_MAC])
6977 return -EINVAL;
6978
1778092e
JM		 6979 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6980 return -EINVAL;
6981
19957bb3
JB		 6982 if (!info->attrs[NL80211_ATTR_SSID])
6983 return -EINVAL;
6984
6985 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6986 return -EINVAL;
6987
fffd0934
JB		 6988 err = nl80211_parse_key(info, &key);
6989 if (err)
6990 return err;
6991
6992 if (key.idx >= 0) {
e31b8213
JB		 6993 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6994 return -EINVAL;
fffd0934
JB		 6995 if (!key.p.key || !key.p.key_len)
6996 return -EINVAL;
6997 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6998 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6999 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7000 key.p.key_len != WLAN_KEY_LEN_WEP104))
7001 return -EINVAL;
7002 if (key.idx > 4)
7003 return -EINVAL;
7004 } else {
7005 key.p.key_len = 0;
7006 key.p.key = NULL;
7007 }
7008
afea0b7a
JB		 7009 if (key.idx >= 0) {
7010 int i;
7011 bool ok = false;
7012 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7013 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7014 ok = true;
7015 break;
7016 }
7017 }
4c476991
JB		 7018 if (!ok)
7019 return -EINVAL;
afea0b7a
JB		 7020 }
7021
4c476991
JB		 7022 if (!rdev->ops->auth)
7023 return -EOPNOTSUPP;
636a5d36 7024
074ac8df 7025 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7026 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7027 return -EOPNOTSUPP;
eec60b03 7028
19957bb3 7029 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7030 chan = nl80211_get_valid_chan(&rdev->wiphy,
7031 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7032 if (!chan)
4c476991 7033 return -EINVAL;
636a5d36 7034
19957bb3
JB		 7035 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7036 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7037
7038 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7039 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7040 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7041 }
7042
19957bb3 7043 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7044 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7045 return -EINVAL;
636a5d36 7046
e39e5b5e
JM		 7047 if (auth_type == NL80211_AUTHTYPE_SAE &&
7048 !info->attrs[NL80211_ATTR_SAE_DATA])
7049 return -EINVAL;
7050
7051 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7052 if (auth_type != NL80211_AUTHTYPE_SAE)
7053 return -EINVAL;
7054 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7055 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7056 /* need to include at least Auth Transaction and Status Code */
7057 if (sae_data_len < 4)
7058 return -EINVAL;
7059 }
7060
d5cdfacb
JM		 7061 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7062
95de817b
JB		 7063 /*
7064 * Since we no longer track auth state, ignore
7065 * requests to only change local state.
7066 */
7067 if (local_state_change)
7068 return 0;
7069
91bf9b26
JB		 7070 wdev_lock(dev->ieee80211_ptr);
7071 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7072 ssid, ssid_len, ie, ie_len,
7073 key.p.key, key.p.key_len, key.idx,
7074 sae_data, sae_data_len);
7075 wdev_unlock(dev->ieee80211_ptr);
7076 return err;
636a5d36
JM		 7077}
7078
c0692b8f
JB		 7079static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7080 struct genl_info *info,
3dc27d25
JB		 7081 struct cfg80211_crypto_settings *settings,
7082 int cipher_limit)
b23aa676 7083{
c0b2bbd8
JB		 7084 memset(settings, 0, sizeof(*settings));
7085
b23aa676
SO		 7086 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7087
c0692b8f
JB		 7088 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7089 u16 proto;
7090 proto = nla_get_u16(
7091 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7092 settings->control_port_ethertype = cpu_to_be16(proto);
7093 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7094 proto != ETH_P_PAE)
7095 return -EINVAL;
7096 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7097 settings->control_port_no_encrypt = true;
7098 } else
7099 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7100
b23aa676
SO		 7101 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7102 void *data;
7103 int len, i;
7104
7105 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7106 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7107 settings->n_ciphers_pairwise = len / sizeof(u32);
7108
7109 if (len % sizeof(u32))
7110 return -EINVAL;
7111
3dc27d25 7112 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7113 return -EINVAL;
7114
7115 memcpy(settings->ciphers_pairwise, data, len);
7116
7117 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7118 if (!cfg80211_supported_cipher_suite(
7119 &rdev->wiphy,
b23aa676
SO		 7120 settings->ciphers_pairwise[i]))
7121 return -EINVAL;
7122 }
7123
7124 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7125 settings->cipher_group =
7126 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7127 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7128 settings->cipher_group))
b23aa676
SO		 7129 return -EINVAL;
7130 }
7131
7132 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7133 settings->wpa_versions =
7134 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7135 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7136 return -EINVAL;
7137 }
7138
7139 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7140 void *data;
6d30240e 7141 int len;
b23aa676
SO		 7142
7143 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7144 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7145 settings->n_akm_suites = len / sizeof(u32);
7146
7147 if (len % sizeof(u32))
7148 return -EINVAL;
7149
1b9ca027
JM		 7150 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7151 return -EINVAL;
7152
b23aa676 7153 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7154 }
7155
7156 return 0;
7157}
7158
636a5d36
JM		 7159static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7160{
4c476991
JB		 7161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7162 struct net_device *dev = info->user_ptr[1];
f444de05 7163 struct ieee80211_channel *chan;
f62fab73
JB		 7164 struct cfg80211_assoc_request req = {};
7165 const u8 *bssid, *ssid;
7166 int err, ssid_len = 0;
636a5d36 7167
f4a11bb0
JB		 7168 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7169 return -EINVAL;
7170
7171 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7172 !info->attrs[NL80211_ATTR_SSID] ||
7173 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7174 return -EINVAL;
7175
4c476991
JB		 7176 if (!rdev->ops->assoc)
7177 return -EOPNOTSUPP;
636a5d36 7178
074ac8df 7179 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7180 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7181 return -EOPNOTSUPP;
eec60b03 7182
19957bb3 7183 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7184
664834de
JM		 7185 chan = nl80211_get_valid_chan(&rdev->wiphy,
7186 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7187 if (!chan)
4c476991 7188 return -EINVAL;
636a5d36 7189
19957bb3
JB		 7190 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7191 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7192
7193 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7194 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7195 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7196 }
7197
dc6382ce 7198 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7199 enum nl80211_mfp mfp =
dc6382ce 7200 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7201 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7202 req.use_mfp = true;
4c476991
JB		 7203 else if (mfp != NL80211_MFP_NO)
7204 return -EINVAL;
dc6382ce
JM		 7205 }
7206
3e5d7649 7207 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7208 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7209
7e7c8926 7210 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7211 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7212
7213 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7214 memcpy(&req.ht_capa_mask,
7215 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7216 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7217
7218 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7219 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7220 return -EINVAL;
f62fab73
JB		 7221 memcpy(&req.ht_capa,
7222 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7223 sizeof(req.ht_capa));
7e7c8926
BG		 7224 }
7225
ee2aca34 7226 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7227 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7228
7229 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7230 memcpy(&req.vht_capa_mask,
7231 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7232 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7233
7234 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7235 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7236 return -EINVAL;
f62fab73
JB		 7237 memcpy(&req.vht_capa,
7238 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7239 sizeof(req.vht_capa));
ee2aca34
JB		 7240 }
7241
bab5ab7d
AK		 7242 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7243 if (!(rdev->wiphy.features &
7244 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7245 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7246 return -EINVAL;
7247 req.flags |= ASSOC_REQ_USE_RRM;
7248 }
7249
f62fab73 7250 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7251 if (!err) {
7252 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7253 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7254 ssid, ssid_len, &req);
91bf9b26
JB		 7255 wdev_unlock(dev->ieee80211_ptr);
7256 }
636a5d36 7257
636a5d36
JM		 7258 return err;
7259}
7260
7261static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7262{
4c476991
JB		 7263 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7264 struct net_device *dev = info->user_ptr[1];
19957bb3 7265 const u8 *ie = NULL, *bssid;
91bf9b26 7266 int ie_len = 0, err;
19957bb3 7267 u16 reason_code;
d5cdfacb 7268 bool local_state_change;
636a5d36 7269
f4a11bb0
JB		 7270 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7271 return -EINVAL;
7272
7273 if (!info->attrs[NL80211_ATTR_MAC])
7274 return -EINVAL;
7275
7276 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7277 return -EINVAL;
7278
4c476991
JB		 7279 if (!rdev->ops->deauth)
7280 return -EOPNOTSUPP;
636a5d36 7281
074ac8df 7282 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7283 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7284 return -EOPNOTSUPP;
eec60b03 7285
19957bb3 7286 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7287
19957bb3
JB		 7288 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7289 if (reason_code == 0) {
f4a11bb0 7290 /* Reason Code 0 is reserved */
4c476991 7291 return -EINVAL;
255e737e 7292 }
636a5d36
JM		 7293
7294 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7295 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7296 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7297 }
7298
d5cdfacb
JM		 7299 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7300
91bf9b26
JB		 7301 wdev_lock(dev->ieee80211_ptr);
7302 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7303 local_state_change);
7304 wdev_unlock(dev->ieee80211_ptr);
7305 return err;
636a5d36
JM		 7306}
7307
7308static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7309{
4c476991
JB		 7310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7311 struct net_device *dev = info->user_ptr[1];
19957bb3 7312 const u8 *ie = NULL, *bssid;
91bf9b26 7313 int ie_len = 0, err;
19957bb3 7314 u16 reason_code;
d5cdfacb 7315 bool local_state_change;
636a5d36 7316
f4a11bb0
JB		 7317 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7318 return -EINVAL;
7319
7320 if (!info->attrs[NL80211_ATTR_MAC])
7321 return -EINVAL;
7322
7323 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7324 return -EINVAL;
7325
4c476991
JB		 7326 if (!rdev->ops->disassoc)
7327 return -EOPNOTSUPP;
636a5d36 7328
074ac8df 7329 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7330 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7331 return -EOPNOTSUPP;
eec60b03 7332
19957bb3 7333 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7334
19957bb3
JB		 7335 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7336 if (reason_code == 0) {
f4a11bb0 7337 /* Reason Code 0 is reserved */
4c476991 7338 return -EINVAL;
255e737e 7339 }
636a5d36
JM		 7340
7341 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7342 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7343 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7344 }
7345
d5cdfacb
JM		 7346 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7347
91bf9b26
JB		 7348 wdev_lock(dev->ieee80211_ptr);
7349 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7350 local_state_change);
7351 wdev_unlock(dev->ieee80211_ptr);
7352 return err;
636a5d36
JM		 7353}
7354
dd5b4cc7
FF		 7355static bool
7356nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7357 int mcast_rate[IEEE80211_NUM_BANDS],
7358 int rateval)
7359{
7360 struct wiphy *wiphy = &rdev->wiphy;
7361 bool found = false;
7362 int band, i;
7363
7364 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7365 struct ieee80211_supported_band *sband;
7366
7367 sband = wiphy->bands[band];
7368 if (!sband)
7369 continue;
7370
7371 for (i = 0; i < sband->n_bitrates; i++) {
7372 if (sband->bitrates[i].bitrate == rateval) {
7373 mcast_rate[band] = i + 1;
7374 found = true;
7375 break;
7376 }
7377 }
7378 }
7379
7380 return found;
7381}
7382
04a773ad
JB		 7383static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7384{
4c476991
JB		 7385 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7386 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7387 struct cfg80211_ibss_params ibss;
7388 struct wiphy *wiphy;
fffd0934 7389 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7390 int err;
7391
8e30bc55
JB		 7392 memset(&ibss, 0, sizeof(ibss));
7393
04a773ad
JB		 7394 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7395 return -EINVAL;
7396
683b6d3b 7397 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7398 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7399 return -EINVAL;
7400
8e30bc55
JB		 7401 ibss.beacon_interval = 100;
7402
7403 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7404 ibss.beacon_interval =
7405 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7406 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7407 return -EINVAL;
7408 }
7409
4c476991
JB		 7410 if (!rdev->ops->join_ibss)
7411 return -EOPNOTSUPP;
04a773ad 7412
4c476991
JB		 7413 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7414 return -EOPNOTSUPP;
04a773ad 7415
79c97e97 7416 wiphy = &rdev->wiphy;
04a773ad 7417
39193498 7418 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7419 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7420
7421 if (!is_valid_ether_addr(ibss.bssid))
7422 return -EINVAL;
7423 }
04a773ad
JB		 7424 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7425 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7426
7427 if (info->attrs[NL80211_ATTR_IE]) {
7428 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7429 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7430 }
7431
683b6d3b
JB		 7432 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7433 if (err)
7434 return err;
04a773ad 7435
174e0cd2
IP		 7436 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7437 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7438 return -EINVAL;
7439
2f301ab2 7440 switch (ibss.chandef.width) {
bf372645
SW		 7441 case NL80211_CHAN_WIDTH_5:
7442 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7443 case NL80211_CHAN_WIDTH_20_NOHT:
7444 break;
7445 case NL80211_CHAN_WIDTH_20:
7446 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7447 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7448 return -EINVAL;
7449 break;
7450 case NL80211_CHAN_WIDTH_80:
7451 case NL80211_CHAN_WIDTH_80P80:
7452 case NL80211_CHAN_WIDTH_160:
7453 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7454 return -EINVAL;
7455 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7456 NL80211_EXT_FEATURE_VHT_IBSS))
7457 return -EINVAL;
7458 break;
2f301ab2 7459 default:
c04d6150 7460 return -EINVAL;
2f301ab2 7461 }
db9c64cf 7462
04a773ad 7463 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7464 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7465
fbd2c8dc
TP		 7466 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7467 u8 *rates =
7468 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7469 int n_rates =
7470 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7471 struct ieee80211_supported_band *sband =
683b6d3b 7472 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7473
34850ab2
JB		 7474 err = ieee80211_get_ratemask(sband, rates, n_rates,
7475 &ibss.basic_rates);
7476 if (err)
7477 return err;
fbd2c8dc 7478 }
dd5b4cc7 7479
803768f5
SW		 7480 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7481 memcpy(&ibss.ht_capa_mask,
7482 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7483 sizeof(ibss.ht_capa_mask));
7484
7485 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7486 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7487 return -EINVAL;
7488 memcpy(&ibss.ht_capa,
7489 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7490 sizeof(ibss.ht_capa));
7491 }
7492
dd5b4cc7
FF		 7493 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7494 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7495 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7496 return -EINVAL;
fbd2c8dc 7497
4c476991 7498 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7499 bool no_ht = false;
7500
4c476991 7501 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7502 info->attrs[NL80211_ATTR_KEYS],
7503 &no_ht);
4c476991
JB		 7504 if (IS_ERR(connkeys))
7505 return PTR_ERR(connkeys);
de7044ee 7506
3d9d1d66
JB		 7507 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7508 no_ht) {
de7044ee
SM		 7509 kfree(connkeys);
7510 return -EINVAL;
7511 }
4c476991 7512 }
04a773ad 7513
267335d6
AQ		 7514 ibss.control_port =
7515 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7516
5336fa88
SW		 7517 ibss.userspace_handles_dfs =
7518 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7519
4c476991 7520 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7521 if (err)
b47f610b 7522 kzfree(connkeys);
04a773ad
JB		 7523 return err;
7524}
7525
7526static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7527{
4c476991
JB		 7528 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7529 struct net_device *dev = info->user_ptr[1];
04a773ad 7530
4c476991
JB		 7531 if (!rdev->ops->leave_ibss)
7532 return -EOPNOTSUPP;
04a773ad 7533
4c476991
JB		 7534 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7535 return -EOPNOTSUPP;
04a773ad 7536
4c476991 7537 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7538}
7539
f4e583c8
AQ		 7540static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7541{
7542 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7543 struct net_device *dev = info->user_ptr[1];
7544 int mcast_rate[IEEE80211_NUM_BANDS];
7545 u32 nla_rate;
7546 int err;
7547
7548 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7549 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7550 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7551 return -EOPNOTSUPP;
7552
7553 if (!rdev->ops->set_mcast_rate)
7554 return -EOPNOTSUPP;
7555
7556 memset(mcast_rate, 0, sizeof(mcast_rate));
7557
7558 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7559 return -EINVAL;
7560
7561 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7562 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7563 return -EINVAL;
7564
7565 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7566
7567 return err;
7568}
7569
ad7e718c
JB		 7570static struct sk_buff *
7571__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7572 struct wireless_dev *wdev, int approxlen,
7573 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7574 enum nl80211_attrs attr,
7575 const struct nl80211_vendor_cmd_info *info,
7576 gfp_t gfp)
ad7e718c
JB		 7577{
7578 struct sk_buff *skb;
7579 void *hdr;
7580 struct nlattr *data;
7581
7582 skb = nlmsg_new(approxlen + 100, gfp);
7583 if (!skb)
7584 return NULL;
7585
7586 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7587 if (!hdr) {
7588 kfree_skb(skb);
7589 return NULL;
7590 }
7591
7592 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7593 goto nla_put_failure;
567ffc35
JB		 7594
7595 if (info) {
7596 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7597 info->vendor_id))
7598 goto nla_put_failure;
7599 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7600 info->subcmd))
7601 goto nla_put_failure;
7602 }
7603
6c09e791
AK		 7604 if (wdev) {
7605 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7606 wdev_id(wdev)))
7607 goto nla_put_failure;
7608 if (wdev->netdev &&
7609 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7610 wdev->netdev->ifindex))
7611 goto nla_put_failure;
7612 }
7613
ad7e718c
JB		 7614 data = nla_nest_start(skb, attr);
7615
7616 ((void **)skb->cb)[0] = rdev;
7617 ((void **)skb->cb)[1] = hdr;
7618 ((void **)skb->cb)[2] = data;
7619
7620 return skb;
7621
7622 nla_put_failure:
7623 kfree_skb(skb);
7624 return NULL;
7625}
f4e583c8 7626
e03ad6ea 7627struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7628 struct wireless_dev *wdev,
e03ad6ea
JB		 7629 enum nl80211_commands cmd,
7630 enum nl80211_attrs attr,
7631 int vendor_event_idx,
7632 int approxlen, gfp_t gfp)
7633{
f26cbf40 7634 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7635 const struct nl80211_vendor_cmd_info *info;
7636
7637 switch (cmd) {
7638 case NL80211_CMD_TESTMODE:
7639 if (WARN_ON(vendor_event_idx != -1))
7640 return NULL;
7641 info = NULL;
7642 break;
7643 case NL80211_CMD_VENDOR:
7644 if (WARN_ON(vendor_event_idx < 0 ||
7645 vendor_event_idx >= wiphy->n_vendor_events))
7646 return NULL;
7647 info = &wiphy->vendor_events[vendor_event_idx];
7648 break;
7649 default:
7650 WARN_ON(1);
7651 return NULL;
7652 }
7653
6c09e791 7654 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 7655 cmd, attr, info, gfp);
7656}
7657EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7658
7659void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7660{
7661 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7662 void *hdr = ((void **)skb->cb)[1];
7663 struct nlattr *data = ((void **)skb->cb)[2];
7664 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7665
bd8c78e7
JB		 7666 /* clear CB data for netlink core to own from now on */
7667 memset(skb->cb, 0, sizeof(skb->cb));
7668
e03ad6ea
JB		 7669 nla_nest_end(skb, data);
7670 genlmsg_end(skb, hdr);
7671
7672 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7673 mcgrp = NL80211_MCGRP_VENDOR;
7674
7675 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7676 mcgrp, gfp);
7677}
7678EXPORT_SYMBOL(__cfg80211_send_event_skb);
7679
aff89a9b 7680#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7681static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7682{
4c476991 7683 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7684 struct wireless_dev *wdev =
7685 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7686 int err;
7687
fc73f11f
DS		 7688 if (!rdev->ops->testmode_cmd)
7689 return -EOPNOTSUPP;
7690
7691 if (IS_ERR(wdev)) {
7692 err = PTR_ERR(wdev);
7693 if (err != -EINVAL)
7694 return err;
7695 wdev = NULL;
7696 } else if (wdev->wiphy != &rdev->wiphy) {
7697 return -EINVAL;
7698 }
7699
aff89a9b
JB		 7700 if (!info->attrs[NL80211_ATTR_TESTDATA])
7701 return -EINVAL;
7702
ad7e718c 7703 rdev->cur_cmd_info = info;
fc73f11f 7704 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7705 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7706 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7707 rdev->cur_cmd_info = NULL;
aff89a9b 7708
aff89a9b
JB		 7709 return err;
7710}
7711
71063f0e
WYG		 7712static int nl80211_testmode_dump(struct sk_buff *skb,
7713 struct netlink_callback *cb)
7714{
00918d33 7715 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7716 int err;
7717 long phy_idx;
7718 void *data = NULL;
7719 int data_len = 0;
7720
5fe231e8
JB		 7721 rtnl_lock();
7722
71063f0e
WYG		 7723 if (cb->args[0]) {
7724 /*
7725 * 0 is a valid index, but not valid for args[0],
7726 * so we need to offset by 1.
7727 */
7728 phy_idx = cb->args[0] - 1;
7729 } else {
7730 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7731 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7732 nl80211_policy);
7733 if (err)
5fe231e8 7734 goto out_err;
00918d33 7735
2bd7e35d
JB		 7736 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7737 nl80211_fam.attrbuf);
7738 if (IS_ERR(rdev)) {
5fe231e8
JB		 7739 err = PTR_ERR(rdev);
7740 goto out_err;
00918d33 7741 }
2bd7e35d
JB		 7742 phy_idx = rdev->wiphy_idx;
7743 rdev = NULL;
2bd7e35d 7744
71063f0e
WYG		 7745 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7746 cb->args[1] =
7747 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7748 }
7749
7750 if (cb->args[1]) {
7751 data = nla_data((void *)cb->args[1]);
7752 data_len = nla_len((void *)cb->args[1]);
7753 }
7754
00918d33
JB		 7755 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7756 if (!rdev) {
5fe231e8
JB		 7757 err = -ENOENT;
7758 goto out_err;
71063f0e 7759 }
71063f0e 7760
00918d33 7761 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7762 err = -EOPNOTSUPP;
7763 goto out_err;
7764 }
7765
7766 while (1) {
15e47304 7767 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7768 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7769 NL80211_CMD_TESTMODE);
7770 struct nlattr *tmdata;
7771
cb35fba3
DC		 7772 if (!hdr)
7773 break;
7774
9360ffd1 7775 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7776 genlmsg_cancel(skb, hdr);
7777 break;
7778 }
7779
7780 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7781 if (!tmdata) {
7782 genlmsg_cancel(skb, hdr);
7783 break;
7784 }
e35e4d28 7785 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7786 nla_nest_end(skb, tmdata);
7787
7788 if (err == -ENOBUFS || err == -ENOENT) {
7789 genlmsg_cancel(skb, hdr);
7790 break;
7791 } else if (err) {
7792 genlmsg_cancel(skb, hdr);
7793 goto out_err;
7794 }
7795
7796 genlmsg_end(skb, hdr);
7797 }
7798
7799 err = skb->len;
7800 /* see above */
7801 cb->args[0] = phy_idx + 1;
7802 out_err:
5fe231e8 7803 rtnl_unlock();
71063f0e
WYG		 7804 return err;
7805}
aff89a9b
JB		 7806#endif
7807
b23aa676
SO		 7808static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7809{
4c476991
JB		 7810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7811 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7812 struct cfg80211_connect_params connect;
7813 struct wiphy *wiphy;
fffd0934 7814 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7815 int err;
7816
7817 memset(&connect, 0, sizeof(connect));
7818
7819 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7820 return -EINVAL;
7821
7822 if (!info->attrs[NL80211_ATTR_SSID] ||
7823 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7824 return -EINVAL;
7825
7826 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7827 connect.auth_type =
7828 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7829 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7830 NL80211_CMD_CONNECT))
b23aa676
SO		 7831 return -EINVAL;
7832 } else
7833 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7834
7835 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7836
c0692b8f 7837 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7838 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7839 if (err)
7840 return err;
b23aa676 7841
074ac8df 7842 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7843 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7844 return -EOPNOTSUPP;
b23aa676 7845
79c97e97 7846 wiphy = &rdev->wiphy;
b23aa676 7847
4486ea98
BS		 7848 connect.bg_scan_period = -1;
7849 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7850 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7851 connect.bg_scan_period =
7852 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7853 }
7854
b23aa676
SO		 7855 if (info->attrs[NL80211_ATTR_MAC])
7856 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7857 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7858 connect.bssid_hint =
7859 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7860 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7861 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7862
7863 if (info->attrs[NL80211_ATTR_IE]) {
7864 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7865 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7866 }
7867
cee00a95
JM		 7868 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7869 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7870 if (connect.mfp != NL80211_MFP_REQUIRED &&
7871 connect.mfp != NL80211_MFP_NO)
7872 return -EINVAL;
7873 } else {
7874 connect.mfp = NL80211_MFP_NO;
7875 }
7876
b23aa676 7877 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7878 connect.channel = nl80211_get_valid_chan(
7879 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7880 if (!connect.channel)
1df4a510
JM		 7881 return -EINVAL;
7882 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7883 connect.channel_hint = nl80211_get_valid_chan(
7884 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7885 if (!connect.channel_hint)
4c476991 7886 return -EINVAL;
b23aa676
SO		 7887 }
7888
fffd0934
JB		 7889 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7890 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7891 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7892 if (IS_ERR(connkeys))
7893 return PTR_ERR(connkeys);
fffd0934
JB		 7894 }
7895
7e7c8926
BG		 7896 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7897 connect.flags |= ASSOC_REQ_DISABLE_HT;
7898
7899 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7900 memcpy(&connect.ht_capa_mask,
7901 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7902 sizeof(connect.ht_capa_mask));
7903
7904 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7905 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7906 kzfree(connkeys);
7e7c8926 7907 return -EINVAL;
b4e4f47e 7908 }
7e7c8926
BG		 7909 memcpy(&connect.ht_capa,
7910 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7911 sizeof(connect.ht_capa));
7912 }
7913
ee2aca34
JB		 7914 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7915 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7916
7917 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7918 memcpy(&connect.vht_capa_mask,
7919 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7920 sizeof(connect.vht_capa_mask));
7921
7922 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7923 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7924 kzfree(connkeys);
ee2aca34
JB		 7925 return -EINVAL;
7926 }
7927 memcpy(&connect.vht_capa,
7928 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7929 sizeof(connect.vht_capa));
7930 }
7931
bab5ab7d
AK		 7932 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7933 if (!(rdev->wiphy.features &
7934 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7935 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7936 return -EINVAL;
7937 connect.flags |= ASSOC_REQ_USE_RRM;
7938 }
7939
83739b03
JB		 7940 wdev_lock(dev->ieee80211_ptr);
7941 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7942 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7943 if (err)
b47f610b 7944 kzfree(connkeys);
b23aa676
SO		 7945 return err;
7946}
7947
7948static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7949{
4c476991
JB		 7950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7951 struct net_device *dev = info->user_ptr[1];
b23aa676 7952 u16 reason;
83739b03 7953 int ret;
b23aa676
SO		 7954
7955 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7956 reason = WLAN_REASON_DEAUTH_LEAVING;
7957 else
7958 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7959
7960 if (reason == 0)
7961 return -EINVAL;
7962
074ac8df 7963 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7964 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7965 return -EOPNOTSUPP;
b23aa676 7966
83739b03
JB		 7967 wdev_lock(dev->ieee80211_ptr);
7968 ret = cfg80211_disconnect(rdev, dev, reason, true);
7969 wdev_unlock(dev->ieee80211_ptr);
7970 return ret;
b23aa676
SO		 7971}
7972
463d0183
JB		 7973static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7974{
4c476991 7975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7976 struct net *net;
7977 int err;
463d0183 7978
4b681c82
VK		 7979 if (info->attrs[NL80211_ATTR_PID]) {
7980 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7981
7982 net = get_net_ns_by_pid(pid);
7983 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
7984 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 7985
4b681c82
VK		 7986 net = get_net_ns_by_fd(fd);
7987 } else {
7988 return -EINVAL;
7989 }
463d0183 7990
4c476991
JB		 7991 if (IS_ERR(net))
7992 return PTR_ERR(net);
463d0183
JB		 7993
7994 err = 0;
7995
7996 /* check if anything to do */
4c476991
JB		 7997 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7998 err = cfg80211_switch_netns(rdev, net);
463d0183 7999
463d0183 8000 put_net(net);
463d0183
JB		 8001 return err;
8002}
8003
67fbb16b
SO		 8004static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8005{
4c476991 8006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8007 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8008 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8009 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8010 struct cfg80211_pmksa pmksa;
8011
8012 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8013
8014 if (!info->attrs[NL80211_ATTR_MAC])
8015 return -EINVAL;
8016
8017 if (!info->attrs[NL80211_ATTR_PMKID])
8018 return -EINVAL;
8019
67fbb16b
SO		 8020 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8021 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8022
074ac8df 8023 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8024 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8025 return -EOPNOTSUPP;
67fbb16b
SO		 8026
8027 switch (info->genlhdr->cmd) {
8028 case NL80211_CMD_SET_PMKSA:
8029 rdev_ops = rdev->ops->set_pmksa;
8030 break;
8031 case NL80211_CMD_DEL_PMKSA:
8032 rdev_ops = rdev->ops->del_pmksa;
8033 break;
8034 default:
8035 WARN_ON(1);
8036 break;
8037 }
8038
4c476991
JB		 8039 if (!rdev_ops)
8040 return -EOPNOTSUPP;
67fbb16b 8041
4c476991 8042 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8043}
8044
8045static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8046{
4c476991
JB		 8047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8048 struct net_device *dev = info->user_ptr[1];
67fbb16b 8049
074ac8df 8050 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8051 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8052 return -EOPNOTSUPP;
67fbb16b 8053
4c476991
JB		 8054 if (!rdev->ops->flush_pmksa)
8055 return -EOPNOTSUPP;
67fbb16b 8056
e35e4d28 8057 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8058}
8059
109086ce
AN		 8060static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8061{
8062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8063 struct net_device *dev = info->user_ptr[1];
8064 u8 action_code, dialog_token;
df942e7b 8065 u32 peer_capability = 0;
109086ce
AN		 8066 u16 status_code;
8067 u8 *peer;
31fa97c5 8068 bool initiator;
109086ce
AN		 8069
8070 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8071 !rdev->ops->tdls_mgmt)
8072 return -EOPNOTSUPP;
8073
8074 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8075 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8076 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8077 !info->attrs[NL80211_ATTR_IE] ||
8078 !info->attrs[NL80211_ATTR_MAC])
8079 return -EINVAL;
8080
8081 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8082 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8083 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8084 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8085 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8086 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8087 peer_capability =
8088 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8089
e35e4d28 8090 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8091 dialog_token, status_code, peer_capability,
31fa97c5 8092 initiator,
e35e4d28
HG		 8093 nla_data(info->attrs[NL80211_ATTR_IE]),
8094 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8095}
8096
8097static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8098{
8099 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8100 struct net_device *dev = info->user_ptr[1];
8101 enum nl80211_tdls_operation operation;
8102 u8 *peer;
8103
8104 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8105 !rdev->ops->tdls_oper)
8106 return -EOPNOTSUPP;
8107
8108 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8109 !info->attrs[NL80211_ATTR_MAC])
8110 return -EINVAL;
8111
8112 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8113 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8114
e35e4d28 8115 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8116}
8117
9588bbd5
JM		 8118static int nl80211_remain_on_channel(struct sk_buff *skb,
8119 struct genl_info *info)
8120{
4c476991 8121 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8122 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8123 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8124 struct sk_buff *msg;
8125 void *hdr;
8126 u64 cookie;
683b6d3b 8127 u32 duration;
9588bbd5
JM		 8128 int err;
8129
8130 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8131 !info->attrs[NL80211_ATTR_DURATION])
8132 return -EINVAL;
8133
8134 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8135
ebf348fc
JB		 8136 if (!rdev->ops->remain_on_channel ||
8137 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8138 return -EOPNOTSUPP;
8139
9588bbd5 8140 /*
ebf348fc
JB		 8141 * We should be on that channel for at least a minimum amount of
8142 * time (10ms) but no longer than the driver supports.
9588bbd5 8143 */
ebf348fc 8144 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8145 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8146 return -EINVAL;
8147
683b6d3b
JB		 8148 err = nl80211_parse_chandef(rdev, info, &chandef);
8149 if (err)
8150 return err;
9588bbd5
JM		 8151
8152 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8153 if (!msg)
8154 return -ENOMEM;
9588bbd5 8155
15e47304 8156 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8157 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8158 if (!hdr) {
8159 err = -ENOBUFS;
9588bbd5
JM		 8160 goto free_msg;
8161 }
8162
683b6d3b
JB		 8163 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8164 duration, &cookie);
9588bbd5
JM		 8165
8166 if (err)
8167 goto free_msg;
8168
9360ffd1
DM		 8169 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8170 goto nla_put_failure;
9588bbd5
JM		 8171
8172 genlmsg_end(msg, hdr);
4c476991
JB		 8173
8174 return genlmsg_reply(msg, info);
9588bbd5
JM		 8175
8176 nla_put_failure:
8177 err = -ENOBUFS;
8178 free_msg:
8179 nlmsg_free(msg);
9588bbd5
JM		 8180 return err;
8181}
8182
8183static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8184 struct genl_info *info)
8185{
4c476991 8186 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8187 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8188 u64 cookie;
9588bbd5
JM		 8189
8190 if (!info->attrs[NL80211_ATTR_COOKIE])
8191 return -EINVAL;
8192
4c476991
JB		 8193 if (!rdev->ops->cancel_remain_on_channel)
8194 return -EOPNOTSUPP;
9588bbd5 8195
9588bbd5
JM		 8196 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8197
e35e4d28 8198 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8199}
8200
13ae75b1
JM		 8201static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8202 u8 *rates, u8 rates_len)
8203{
8204 u8 i;
8205 u32 mask = 0;
8206
8207 for (i = 0; i < rates_len; i++) {
8208 int rate = (rates[i] & 0x7f) * 5;
8209 int ridx;
8210 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8211 struct ieee80211_rate *srate =
8212 &sband->bitrates[ridx];
8213 if (rate == srate->bitrate) {
8214 mask |= 1 << ridx;
8215 break;
8216 }
8217 }
8218 if (ridx == sband->n_bitrates)
8219 return 0; /* rate not found */
8220 }
8221
8222 return mask;
8223}
8224
24db78c0
SW		 8225static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8226 u8 *rates, u8 rates_len,
8227 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8228{
8229 u8 i;
8230
8231 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8232
8233 for (i = 0; i < rates_len; i++) {
8234 int ridx, rbit;
8235
8236 ridx = rates[i] / 8;
8237 rbit = BIT(rates[i] % 8);
8238
8239 /* check validity */
910570b5 8240 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8241 return false;
8242
8243 /* check availability */
8244 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8245 mcs[ridx] |= rbit;
8246 else
8247 return false;
8248 }
8249
8250 return true;
8251}
8252
204e35a9
JD		 8253static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8254{
8255 u16 mcs_mask = 0;
8256
8257 switch (vht_mcs_map) {
8258 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8259 break;
8260 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8261 mcs_mask = 0x00FF;
8262 break;
8263 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8264 mcs_mask = 0x01FF;
8265 break;
8266 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8267 mcs_mask = 0x03FF;
8268 break;
8269 default:
8270 break;
8271 }
8272
8273 return mcs_mask;
8274}
8275
8276static void vht_build_mcs_mask(u16 vht_mcs_map,
8277 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8278{
8279 u8 nss;
8280
8281 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8282 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8283 vht_mcs_map >>= 2;
8284 }
8285}
8286
8287static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8288 struct nl80211_txrate_vht *txrate,
8289 u16 mcs[NL80211_VHT_NSS_MAX])
8290{
8291 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8292 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8293 u8 i;
8294
8295 if (!sband->vht_cap.vht_supported)
8296 return false;
8297
8298 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8299
8300 /* Build vht_mcs_mask from VHT capabilities */
8301 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8302
8303 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8304 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8305 mcs[i] = txrate->mcs[i];
8306 else
8307 return false;
8308 }
8309
8310 return true;
8311}
8312
b54452b0 8313static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8314 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8315 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8316 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8317 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8318 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8319 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8320};
8321
8322static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8323 struct genl_info *info)
8324{
8325 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8326 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8327 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8328 int rem, i;
8329 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8330 struct nlattr *tx_rates;
8331 struct ieee80211_supported_band *sband;
204e35a9 8332 u16 vht_tx_mcs_map;
13ae75b1 8333
4c476991
JB		 8334 if (!rdev->ops->set_bitrate_mask)
8335 return -EOPNOTSUPP;
13ae75b1
JM		 8336
8337 memset(&mask, 0, sizeof(mask));
8338 /* Default to all rates enabled */
8339 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8340 sband = rdev->wiphy.bands[i];
7869303b
JD		 8341
8342 if (!sband)
8343 continue;
8344
8345 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8346 memcpy(mask.control[i].ht_mcs,
7869303b 8347 sband->ht_cap.mcs.rx_mask,
d1e33e65 8348 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8349
8350 if (!sband->vht_cap.vht_supported)
8351 continue;
8352
8353 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8354 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8355 }
8356
b9243ab0
JD		 8357 /* if no rates are given set it back to the defaults */
8358 if (!info->attrs[NL80211_ATTR_TX_RATES])
8359 goto out;
8360
13ae75b1
JM		 8361 /*
8362 * The nested attribute uses enum nl80211_band as the index. This maps
8363 * directly to the enum ieee80211_band values used in cfg80211.
8364 */
24db78c0 8365 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8366 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8367 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8368 int err;
8369
4c476991
JB		 8370 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8371 return -EINVAL;
13ae75b1 8372 sband = rdev->wiphy.bands[band];
4c476991
JB		 8373 if (sband == NULL)
8374 return -EINVAL;
ae811e21
JB		 8375 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8376 nla_len(tx_rates), nl80211_txattr_policy);
8377 if (err)
8378 return err;
13ae75b1
JM		 8379 if (tb[NL80211_TXRATE_LEGACY]) {
8380 mask.control[band].legacy = rateset_to_mask(
8381 sband,
8382 nla_data(tb[NL80211_TXRATE_LEGACY]),
8383 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8384 if ((mask.control[band].legacy == 0) &&
8385 nla_len(tb[NL80211_TXRATE_LEGACY]))
8386 return -EINVAL;
24db78c0 8387 }
d1e33e65 8388 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8389 if (!ht_rateset_to_mask(
8390 sband,
d1e33e65
JD		 8391 nla_data(tb[NL80211_TXRATE_HT]),
8392 nla_len(tb[NL80211_TXRATE_HT]),
8393 mask.control[band].ht_mcs))
24db78c0
SW		 8394 return -EINVAL;
8395 }
204e35a9
JD		 8396 if (tb[NL80211_TXRATE_VHT]) {
8397 if (!vht_set_mcs_mask(
8398 sband,
8399 nla_data(tb[NL80211_TXRATE_VHT]),
8400 mask.control[band].vht_mcs))
8401 return -EINVAL;
8402 }
0b9323f6
JD		 8403 if (tb[NL80211_TXRATE_GI]) {
8404 mask.control[band].gi =
8405 nla_get_u8(tb[NL80211_TXRATE_GI]);
8406 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8407 return -EINVAL;
8408 }
24db78c0
SW		 8409
8410 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8411 /* don't allow empty legacy rates if HT or VHT
8412 * are not even supported.
8413 */
8414 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8415 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8416 return -EINVAL;
8417
8418 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8419 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8420 goto out;
8421
8422 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8423 if (mask.control[band].vht_mcs[i])
8424 goto out;
24db78c0
SW		 8425
8426 /* legacy and mcs rates may not be both empty */
204e35a9 8427 return -EINVAL;
13ae75b1
JM		 8428 }
8429 }
8430
b9243ab0 8431out:
e35e4d28 8432 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8433}
8434
2e161f78 8435static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8436{
4c476991 8437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8438 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8439 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8440
8441 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8442 return -EINVAL;
8443
2e161f78
JB		 8444 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8445 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8446
71bbc994
JB		 8447 switch (wdev->iftype) {
8448 case NL80211_IFTYPE_STATION:
8449 case NL80211_IFTYPE_ADHOC:
8450 case NL80211_IFTYPE_P2P_CLIENT:
8451 case NL80211_IFTYPE_AP:
8452 case NL80211_IFTYPE_AP_VLAN:
8453 case NL80211_IFTYPE_MESH_POINT:
8454 case NL80211_IFTYPE_P2P_GO:
98104fde 8455 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8456 break;
8457 default:
4c476991 8458 return -EOPNOTSUPP;
71bbc994 8459 }
026331c4
JM		 8460
8461 /* not much point in registering if we can't reply */
4c476991
JB		 8462 if (!rdev->ops->mgmt_tx)
8463 return -EOPNOTSUPP;
026331c4 8464
15e47304 8465 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8466 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8467 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8468}
8469
2e161f78 8470static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8471{
4c476991 8472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8473 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8474 struct cfg80211_chan_def chandef;
026331c4 8475 int err;
d64d373f 8476 void *hdr = NULL;
026331c4 8477 u64 cookie;
e247bd90 8478 struct sk_buff *msg = NULL;
b176e629
AO		 8479 struct cfg80211_mgmt_tx_params params = {
8480 .dont_wait_for_ack =
8481 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8482 };
026331c4 8483
683b6d3b 8484 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8485 return -EINVAL;
8486
4c476991
JB		 8487 if (!rdev->ops->mgmt_tx)
8488 return -EOPNOTSUPP;
026331c4 8489
71bbc994 8490 switch (wdev->iftype) {
ea141b75
AQ		 8491 case NL80211_IFTYPE_P2P_DEVICE:
8492 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8493 return -EINVAL;
71bbc994
JB		 8494 case NL80211_IFTYPE_STATION:
8495 case NL80211_IFTYPE_ADHOC:
8496 case NL80211_IFTYPE_P2P_CLIENT:
8497 case NL80211_IFTYPE_AP:
8498 case NL80211_IFTYPE_AP_VLAN:
8499 case NL80211_IFTYPE_MESH_POINT:
8500 case NL80211_IFTYPE_P2P_GO:
8501 break;
8502 default:
4c476991 8503 return -EOPNOTSUPP;
71bbc994 8504 }
026331c4 8505
f7ca38df 8506 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8507 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8508 return -EINVAL;
b176e629 8509 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8510
8511 /*
8512 * We should wait on the channel for at least a minimum amount
8513 * of time (10ms) but no longer than the driver supports.
8514 */
b176e629
AO		 8515 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8516 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8517 return -EINVAL;
8518
f7ca38df
JB		 8519 }
8520
b176e629 8521 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8522
b176e629 8523 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8524 return -EINVAL;
8525
b176e629 8526 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8527
ea141b75
AQ		 8528 /* get the channel if any has been specified, otherwise pass NULL to
8529 * the driver. The latter will use the current one
8530 */
8531 chandef.chan = NULL;
8532 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8533 err = nl80211_parse_chandef(rdev, info, &chandef);
8534 if (err)
8535 return err;
8536 }
8537
b176e629 8538 if (!chandef.chan && params.offchan)
ea141b75 8539 return -EINVAL;
026331c4 8540
34d22ce2
AO		 8541 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8542 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8543
8544 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8545 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8546 int i;
8547
8548 if (len % sizeof(u16))
8549 return -EINVAL;
8550
8551 params.n_csa_offsets = len / sizeof(u16);
8552 params.csa_offsets =
8553 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8554
8555 /* check that all the offsets fit the frame */
8556 for (i = 0; i < params.n_csa_offsets; i++) {
8557 if (params.csa_offsets[i] >= params.len)
8558 return -EINVAL;
8559 }
8560 }
8561
b176e629 8562 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8563 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8564 if (!msg)
8565 return -ENOMEM;
026331c4 8566
15e47304 8567 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8568 NL80211_CMD_FRAME);
cb35fba3
DC		 8569 if (!hdr) {
8570 err = -ENOBUFS;
e247bd90
JB		 8571 goto free_msg;
8572 }
026331c4 8573 }
e247bd90 8574
b176e629
AO		 8575 params.chan = chandef.chan;
8576 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8577 if (err)
8578 goto free_msg;
8579
e247bd90 8580 if (msg) {
9360ffd1
DM		 8581 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8582 goto nla_put_failure;
026331c4 8583
e247bd90
JB		 8584 genlmsg_end(msg, hdr);
8585 return genlmsg_reply(msg, info);
8586 }
8587
8588 return 0;
026331c4
JM		 8589
8590 nla_put_failure:
8591 err = -ENOBUFS;
8592 free_msg:
8593 nlmsg_free(msg);
026331c4
JM		 8594 return err;
8595}
8596
f7ca38df
JB		 8597static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8598{
8599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8600 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8601 u64 cookie;
8602
8603 if (!info->attrs[NL80211_ATTR_COOKIE])
8604 return -EINVAL;
8605
8606 if (!rdev->ops->mgmt_tx_cancel_wait)
8607 return -EOPNOTSUPP;
8608
71bbc994
JB		 8609 switch (wdev->iftype) {
8610 case NL80211_IFTYPE_STATION:
8611 case NL80211_IFTYPE_ADHOC:
8612 case NL80211_IFTYPE_P2P_CLIENT:
8613 case NL80211_IFTYPE_AP:
8614 case NL80211_IFTYPE_AP_VLAN:
8615 case NL80211_IFTYPE_P2P_GO:
98104fde 8616 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8617 break;
8618 default:
f7ca38df 8619 return -EOPNOTSUPP;
71bbc994 8620 }
f7ca38df
JB		 8621
8622 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8623
e35e4d28 8624 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8625}
8626
ffb9eb3d
KV		 8627static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8628{
4c476991 8629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8630 struct wireless_dev *wdev;
4c476991 8631 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8632 u8 ps_state;
8633 bool state;
8634 int err;
8635
4c476991
JB		 8636 if (!info->attrs[NL80211_ATTR_PS_STATE])
8637 return -EINVAL;
ffb9eb3d
KV		 8638
8639 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8640
4c476991
JB		 8641 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8642 return -EINVAL;
ffb9eb3d
KV		 8643
8644 wdev = dev->ieee80211_ptr;
8645
4c476991
JB		 8646 if (!rdev->ops->set_power_mgmt)
8647 return -EOPNOTSUPP;
ffb9eb3d
KV		 8648
8649 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8650
8651 if (state == wdev->ps)
4c476991 8652 return 0;
ffb9eb3d 8653
e35e4d28 8654 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8655 if (!err)
8656 wdev->ps = state;
ffb9eb3d
KV		 8657 return err;
8658}
8659
8660static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8661{
4c476991 8662 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8663 enum nl80211_ps_state ps_state;
8664 struct wireless_dev *wdev;
4c476991 8665 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8666 struct sk_buff *msg;
8667 void *hdr;
8668 int err;
8669
ffb9eb3d
KV		 8670 wdev = dev->ieee80211_ptr;
8671
4c476991
JB		 8672 if (!rdev->ops->set_power_mgmt)
8673 return -EOPNOTSUPP;
ffb9eb3d
KV		 8674
8675 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8676 if (!msg)
8677 return -ENOMEM;
ffb9eb3d 8678
15e47304 8679 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8680 NL80211_CMD_GET_POWER_SAVE);
8681 if (!hdr) {
4c476991 8682 err = -ENOBUFS;
ffb9eb3d
KV		 8683 goto free_msg;
8684 }
8685
8686 if (wdev->ps)
8687 ps_state = NL80211_PS_ENABLED;
8688 else
8689 ps_state = NL80211_PS_DISABLED;
8690
9360ffd1
DM		 8691 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8692 goto nla_put_failure;
ffb9eb3d
KV		 8693
8694 genlmsg_end(msg, hdr);
4c476991 8695 return genlmsg_reply(msg, info);
ffb9eb3d 8696
4c476991 8697 nla_put_failure:
ffb9eb3d 8698 err = -ENOBUFS;
4c476991 8699 free_msg:
ffb9eb3d 8700 nlmsg_free(msg);
ffb9eb3d
KV		 8701 return err;
8702}
8703
94e860f1
JB		 8704static const struct nla_policy
8705nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8706 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8707 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8708 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8709 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8710 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8711 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8712};
8713
84f10708 8714static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8715 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8716{
8717 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8718 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8719 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8720
d9d8b019 8721 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8722 return -EINVAL;
8723
84f10708
TP		 8724 if (!rdev->ops->set_cqm_txe_config)
8725 return -EOPNOTSUPP;
8726
8727 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8728 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8729 return -EOPNOTSUPP;
8730
e35e4d28 8731 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8732}
8733
d6dc1a38
JO		 8734static int nl80211_set_cqm_rssi(struct genl_info *info,
8735 s32 threshold, u32 hysteresis)
8736{
4c476991 8737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8738 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8739 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8740
8741 if (threshold > 0)
8742 return -EINVAL;
8743
1da5fcc8
JB		 8744 /* disabling - hysteresis should also be zero then */
8745 if (threshold == 0)
8746 hysteresis = 0;
d6dc1a38 8747
4c476991
JB		 8748 if (!rdev->ops->set_cqm_rssi_config)
8749 return -EOPNOTSUPP;
d6dc1a38 8750
074ac8df 8751 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8752 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8753 return -EOPNOTSUPP;
d6dc1a38 8754
e35e4d28 8755 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8756}
8757
8758static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8759{
8760 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8761 struct nlattr *cqm;
8762 int err;
8763
8764 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8765 if (!cqm)
8766 return -EINVAL;
d6dc1a38
JO		 8767
8768 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8769 nl80211_attr_cqm_policy);
8770 if (err)
1da5fcc8 8771 return err;
d6dc1a38
JO		 8772
8773 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8774 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8775 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8776 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8777
1da5fcc8
JB		 8778 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8779 }
8780
8781 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8782 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8783 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8784 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8785 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8786 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8787
8788 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8789 }
8790
8791 return -EINVAL;
d6dc1a38
JO		 8792}
8793
6e0bd6c3
RL		 8794static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8795{
8796 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8797 struct net_device *dev = info->user_ptr[1];
8798 struct ocb_setup setup = {};
8799 int err;
8800
8801 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8802 if (err)
8803 return err;
8804
8805 return cfg80211_join_ocb(rdev, dev, &setup);
8806}
8807
8808static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8809{
8810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8811 struct net_device *dev = info->user_ptr[1];
8812
8813 return cfg80211_leave_ocb(rdev, dev);
8814}
8815
29cbe68c
JB		 8816static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8817{
8818 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8819 struct net_device *dev = info->user_ptr[1];
8820 struct mesh_config cfg;
c80d545d 8821 struct mesh_setup setup;
29cbe68c
JB		 8822 int err;
8823
8824 /* start with default */
8825 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8826 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8827
24bdd9f4 8828 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8829 /* and parse parameters if given */
24bdd9f4 8830 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8831 if (err)
8832 return err;
8833 }
8834
8835 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8836 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8837 return -EINVAL;
8838
c80d545d
JC		 8839 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8840 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8841
4bb62344
CYY		 8842 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8843 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8844 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8845 return -EINVAL;
8846
9bdbf04d
MP		 8847 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8848 setup.beacon_interval =
8849 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8850 if (setup.beacon_interval < 10 ||
8851 setup.beacon_interval > 10000)
8852 return -EINVAL;
8853 }
8854
8855 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8856 setup.dtim_period =
8857 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8858 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8859 return -EINVAL;
8860 }
8861
c80d545d
JC		 8862 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8863 /* parse additional setup parameters if given */
8864 err = nl80211_parse_mesh_setup(info, &setup);
8865 if (err)
8866 return err;
8867 }
8868
d37bb18a
TP		 8869 if (setup.user_mpm)
8870 cfg.auto_open_plinks = false;
8871
cc1d2806 8872 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8873 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8874 if (err)
8875 return err;
cc1d2806
JB		 8876 } else {
8877 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8878 setup.chandef.chan = NULL;
cc1d2806
JB		 8879 }
8880
ffb3cf30
AN		 8881 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8882 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8883 int n_rates =
8884 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8885 struct ieee80211_supported_band *sband;
8886
8887 if (!setup.chandef.chan)
8888 return -EINVAL;
8889
8890 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8891
8892 err = ieee80211_get_ratemask(sband, rates, n_rates,
8893 &setup.basic_rates);
8894 if (err)
8895 return err;
8896 }
8897
c80d545d 8898 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8899}
8900
8901static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8902{
8903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8904 struct net_device *dev = info->user_ptr[1];
8905
8906 return cfg80211_leave_mesh(rdev, dev);
8907}
8908
dfb89c56 8909#ifdef CONFIG_PM
bb92d199
AK		 8910static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8911 struct cfg80211_registered_device *rdev)
8912{
6abb9cb9 8913 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8914 struct nlattr *nl_pats, *nl_pat;
8915 int i, pat_len;
8916
6abb9cb9 8917 if (!wowlan->n_patterns)
bb92d199
AK		 8918 return 0;
8919
8920 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8921 if (!nl_pats)
8922 return -ENOBUFS;
8923
6abb9cb9 8924 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8925 nl_pat = nla_nest_start(msg, i + 1);
8926 if (!nl_pat)
8927 return -ENOBUFS;
6abb9cb9 8928 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8929 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8930 wowlan->patterns[i].mask) ||
50ac6607
AK		 8931 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8932 wowlan->patterns[i].pattern) ||
8933 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8934 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8935 return -ENOBUFS;
8936 nla_nest_end(msg, nl_pat);
8937 }
8938 nla_nest_end(msg, nl_pats);
8939
8940 return 0;
8941}
8942
2a0e047e
JB		 8943static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8944 struct cfg80211_wowlan_tcp *tcp)
8945{
8946 struct nlattr *nl_tcp;
8947
8948 if (!tcp)
8949 return 0;
8950
8951 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8952 if (!nl_tcp)
8953 return -ENOBUFS;
8954
930345ea
JB		 8955 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8956 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 8957 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8958 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8959 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8960 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8961 tcp->payload_len, tcp->payload) ||
8962 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8963 tcp->data_interval) ||
8964 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8965 tcp->wake_len, tcp->wake_data) ||
8966 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8967 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8968 return -ENOBUFS;
8969
8970 if (tcp->payload_seq.len &&
8971 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8972 sizeof(tcp->payload_seq), &tcp->payload_seq))
8973 return -ENOBUFS;
8974
8975 if (tcp->payload_tok.len &&
8976 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8977 sizeof(tcp->payload_tok) + tcp->tokens_size,
8978 &tcp->payload_tok))
8979 return -ENOBUFS;
8980
e248ad30
JB		 8981 nla_nest_end(msg, nl_tcp);
8982
2a0e047e
JB		 8983 return 0;
8984}
8985
75453ccb
LC		 8986static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8987 struct cfg80211_sched_scan_request *req)
8988{
3b06d277 8989 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 8990 int i;
8991
8992 if (!req)
8993 return 0;
8994
8995 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
8996 if (!nd)
8997 return -ENOBUFS;
8998
3b06d277
AS		 8999 if (req->n_scan_plans == 1 &&
9000 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9001 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9002 return -ENOBUFS;
9003
21fea567
LC		 9004 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9005 return -ENOBUFS;
9006
75453ccb
LC		 9007 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9008 if (!freqs)
9009 return -ENOBUFS;
9010
9011 for (i = 0; i < req->n_channels; i++)
9012 nla_put_u32(msg, i, req->channels[i]->center_freq);
9013
9014 nla_nest_end(msg, freqs);
9015
9016 if (req->n_match_sets) {
9017 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9018 for (i = 0; i < req->n_match_sets; i++) {
9019 match = nla_nest_start(msg, i);
9020 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9021 req->match_sets[i].ssid.ssid_len,
9022 req->match_sets[i].ssid.ssid);
9023 nla_nest_end(msg, match);
9024 }
9025 nla_nest_end(msg, matches);
9026 }
9027
3b06d277
AS		 9028 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9029 if (!scan_plans)
9030 return -ENOBUFS;
9031
9032 for (i = 0; i < req->n_scan_plans; i++) {
9033 scan_plan = nla_nest_start(msg, i + 1);
9034 if (!scan_plan ||
9035 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9036 req->scan_plans[i].interval) ||
9037 (req->scan_plans[i].iterations &&
9038 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9039 req->scan_plans[i].iterations)))
9040 return -ENOBUFS;
9041 nla_nest_end(msg, scan_plan);
9042 }
9043 nla_nest_end(msg, scan_plans);
9044
75453ccb
LC		 9045 nla_nest_end(msg, nd);
9046
9047 return 0;
9048}
9049
ff1b6e69
JB		 9050static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9051{
9052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9053 struct sk_buff *msg;
9054 void *hdr;
2a0e047e 9055 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9056
964dc9e2 9057 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9058 return -EOPNOTSUPP;
9059
6abb9cb9 9060 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9061 /* adjust size to have room for all the data */
6abb9cb9
JB		 9062 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9063 rdev->wiphy.wowlan_config->tcp->payload_len +
9064 rdev->wiphy.wowlan_config->tcp->wake_len +
9065 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9066 }
9067
9068 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9069 if (!msg)
9070 return -ENOMEM;
9071
15e47304 9072 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9073 NL80211_CMD_GET_WOWLAN);
9074 if (!hdr)
9075 goto nla_put_failure;
9076
6abb9cb9 9077 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9078 struct nlattr *nl_wowlan;
9079
9080 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9081 if (!nl_wowlan)
9082 goto nla_put_failure;
9083
6abb9cb9 9084 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9085 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9086 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9087 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9088 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9090 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9091 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9092 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9094 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9096 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9097 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9098 goto nla_put_failure;
2a0e047e 9099
bb92d199
AK		 9100 if (nl80211_send_wowlan_patterns(msg, rdev))
9101 goto nla_put_failure;
2a0e047e 9102
6abb9cb9
JB		 9103 if (nl80211_send_wowlan_tcp(msg,
9104 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9105 goto nla_put_failure;
75453ccb
LC		 9106
9107 if (nl80211_send_wowlan_nd(
9108 msg,
9109 rdev->wiphy.wowlan_config->nd_config))
9110 goto nla_put_failure;
2a0e047e 9111
ff1b6e69
JB		 9112 nla_nest_end(msg, nl_wowlan);
9113 }
9114
9115 genlmsg_end(msg, hdr);
9116 return genlmsg_reply(msg, info);
9117
9118nla_put_failure:
9119 nlmsg_free(msg);
9120 return -ENOBUFS;
9121}
9122
2a0e047e
JB		 9123static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9124 struct nlattr *attr,
9125 struct cfg80211_wowlan *trig)
9126{
9127 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9128 struct cfg80211_wowlan_tcp *cfg;
9129 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9130 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9131 u32 size;
9132 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9133 int err, port;
9134
964dc9e2 9135 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9136 return -EINVAL;
9137
9138 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9139 nla_data(attr), nla_len(attr),
9140 nl80211_wowlan_tcp_policy);
9141 if (err)
9142 return err;
9143
9144 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9145 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9146 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9147 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9148 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9149 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9150 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9151 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9152 return -EINVAL;
9153
9154 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9155 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9156 return -EINVAL;
9157
9158 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9159 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9160 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9161 return -EINVAL;
9162
9163 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9164 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9165 return -EINVAL;
9166
9167 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9168 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9169 return -EINVAL;
9170
9171 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9172 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9173
9174 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9175 tokens_size = tokln - sizeof(*tok);
9176
9177 if (!tok->len || tokens_size % tok->len)
9178 return -EINVAL;
964dc9e2 9179 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9180 return -EINVAL;
964dc9e2 9181 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9182 return -EINVAL;
964dc9e2 9183 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9184 return -EINVAL;
964dc9e2 9185 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9186 return -EINVAL;
9187 if (tok->offset + tok->len > data_size)
9188 return -EINVAL;
9189 }
9190
9191 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9192 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9193 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9194 return -EINVAL;
9195 if (seq->len == 0 || seq->len > 4)
9196 return -EINVAL;
9197 if (seq->len + seq->offset > data_size)
9198 return -EINVAL;
9199 }
9200
9201 size = sizeof(*cfg);
9202 size += data_size;
9203 size += wake_size + wake_mask_size;
9204 size += tokens_size;
9205
9206 cfg = kzalloc(size, GFP_KERNEL);
9207 if (!cfg)
9208 return -ENOMEM;
67b61f6c
JB		 9209 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9210 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9211 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9212 ETH_ALEN);
9213 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9214 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9215 else
9216 port = 0;
9217#ifdef CONFIG_INET
9218 /* allocate a socket and port for it and use it */
9219 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9220 IPPROTO_TCP, &cfg->sock, 1);
9221 if (err) {
9222 kfree(cfg);
9223 return err;
9224 }
9225 if (inet_csk_get_port(cfg->sock->sk, port)) {
9226 sock_release(cfg->sock);
9227 kfree(cfg);
9228 return -EADDRINUSE;
9229 }
9230 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9231#else
9232 if (!port) {
9233 kfree(cfg);
9234 return -EINVAL;
9235 }
9236 cfg->src_port = port;
9237#endif
9238
9239 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9240 cfg->payload_len = data_size;
9241 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9242 memcpy((void *)cfg->payload,
9243 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9244 data_size);
9245 if (seq)
9246 cfg->payload_seq = *seq;
9247 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9248 cfg->wake_len = wake_size;
9249 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9250 memcpy((void *)cfg->wake_data,
9251 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9252 wake_size);
9253 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9254 data_size + wake_size;
9255 memcpy((void *)cfg->wake_mask,
9256 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9257 wake_mask_size);
9258 if (tok) {
9259 cfg->tokens_size = tokens_size;
9260 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9261 }
9262
9263 trig->tcp = cfg;
9264
9265 return 0;
9266}
9267
8cd4d456
LC		 9268static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9269 const struct wiphy_wowlan_support *wowlan,
9270 struct nlattr *attr,
9271 struct cfg80211_wowlan *trig)
9272{
9273 struct nlattr **tb;
9274 int err;
9275
9276 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9277 if (!tb)
9278 return -ENOMEM;
9279
9280 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9281 err = -EOPNOTSUPP;
9282 goto out;
9283 }
9284
9285 err = nla_parse(tb, NL80211_ATTR_MAX,
9286 nla_data(attr), nla_len(attr),
9287 nl80211_policy);
9288 if (err)
9289 goto out;
9290
ad2b26ab 9291 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9292 err = PTR_ERR_OR_ZERO(trig->nd_config);
9293 if (err)
9294 trig->nd_config = NULL;
9295
9296out:
9297 kfree(tb);
9298 return err;
9299}
9300
ff1b6e69
JB		 9301static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9302{
9303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9304 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9305 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9306 struct cfg80211_wowlan *ntrig;
964dc9e2 9307 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9308 int err, i;
6abb9cb9 9309 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9310 bool regular = false;
ff1b6e69 9311
964dc9e2 9312 if (!wowlan)
ff1b6e69
JB		 9313 return -EOPNOTSUPP;
9314
ae33bd81
JB		 9315 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9316 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9317 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9318 goto set_wakeup;
9319 }
ff1b6e69
JB		 9320
9321 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9322 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9323 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9324 nl80211_wowlan_policy);
9325 if (err)
9326 return err;
9327
9328 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9329 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9330 return -EINVAL;
9331 new_triggers.any = true;
9332 }
9333
9334 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9335 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9336 return -EINVAL;
9337 new_triggers.disconnect = true;
98fc4386 9338 regular = true;
ff1b6e69
JB		 9339 }
9340
9341 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9342 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9343 return -EINVAL;
9344 new_triggers.magic_pkt = true;
98fc4386 9345 regular = true;
ff1b6e69
JB		 9346 }
9347
77dbbb13
JB		 9348 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9349 return -EINVAL;
9350
9351 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9352 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9353 return -EINVAL;
9354 new_triggers.gtk_rekey_failure = true;
98fc4386 9355 regular = true;
77dbbb13
JB		 9356 }
9357
9358 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9359 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9360 return -EINVAL;
9361 new_triggers.eap_identity_req = true;
98fc4386 9362 regular = true;
77dbbb13
JB		 9363 }
9364
9365 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9366 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9367 return -EINVAL;
9368 new_triggers.four_way_handshake = true;
98fc4386 9369 regular = true;
77dbbb13
JB		 9370 }
9371
9372 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9373 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9374 return -EINVAL;
9375 new_triggers.rfkill_release = true;
98fc4386 9376 regular = true;
77dbbb13
JB		 9377 }
9378
ff1b6e69
JB		 9379 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9380 struct nlattr *pat;
9381 int n_patterns = 0;
bb92d199 9382 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9383 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9384
98fc4386
JB		 9385 regular = true;
9386
ff1b6e69
JB		 9387 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9388 rem)
9389 n_patterns++;
9390 if (n_patterns > wowlan->n_patterns)
9391 return -EINVAL;
9392
9393 new_triggers.patterns = kcalloc(n_patterns,
9394 sizeof(new_triggers.patterns[0]),
9395 GFP_KERNEL);
9396 if (!new_triggers.patterns)
9397 return -ENOMEM;
9398
9399 new_triggers.n_patterns = n_patterns;
9400 i = 0;
9401
9402 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9403 rem) {
922bd80f
JB		 9404 u8 *mask_pat;
9405
50ac6607
AK		 9406 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9407 nla_len(pat), NULL);
ff1b6e69 9408 err = -EINVAL;
50ac6607
AK		 9409 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9410 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9411 goto error;
50ac6607 9412 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9413 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9414 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9415 goto error;
9416 if (pat_len > wowlan->pattern_max_len ||
9417 pat_len < wowlan->pattern_min_len)
9418 goto error;
9419
50ac6607 9420 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9421 pkt_offset = 0;
9422 else
9423 pkt_offset = nla_get_u32(
50ac6607 9424 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9425 if (pkt_offset > wowlan->max_pkt_offset)
9426 goto error;
9427 new_triggers.patterns[i].pkt_offset = pkt_offset;
9428
922bd80f
JB		 9429 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9430 if (!mask_pat) {
ff1b6e69
JB		 9431 err = -ENOMEM;
9432 goto error;
9433 }
922bd80f
JB		 9434 new_triggers.patterns[i].mask = mask_pat;
9435 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9436 mask_len);
922bd80f
JB		 9437 mask_pat += mask_len;
9438 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9439 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9440 memcpy(mask_pat,
50ac6607 9441 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9442 pat_len);
9443 i++;
9444 }
9445 }
9446
2a0e047e 9447 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9448 regular = true;
2a0e047e
JB		 9449 err = nl80211_parse_wowlan_tcp(
9450 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9451 &new_triggers);
9452 if (err)
9453 goto error;
9454 }
9455
8cd4d456 9456 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9457 regular = true;
8cd4d456
LC		 9458 err = nl80211_parse_wowlan_nd(
9459 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9460 &new_triggers);
9461 if (err)
9462 goto error;
9463 }
9464
98fc4386
JB		 9465 /* The 'any' trigger means the device continues operating more or less
9466 * as in its normal operation mode and wakes up the host on most of the
9467 * normal interrupts (like packet RX, ...)
9468 * It therefore makes little sense to combine with the more constrained
9469 * wakeup trigger modes.
9470 */
9471 if (new_triggers.any && regular) {
9472 err = -EINVAL;
9473 goto error;
9474 }
9475
ae33bd81
JB		 9476 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9477 if (!ntrig) {
9478 err = -ENOMEM;
9479 goto error;
ff1b6e69 9480 }
ae33bd81 9481 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9482 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9483
ae33bd81 9484 set_wakeup:
6abb9cb9
JB		 9485 if (rdev->ops->set_wakeup &&
9486 prev_enabled != !!rdev->wiphy.wowlan_config)
9487 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9488
ff1b6e69
JB		 9489 return 0;
9490 error:
9491 for (i = 0; i < new_triggers.n_patterns; i++)
9492 kfree(new_triggers.patterns[i].mask);
9493 kfree(new_triggers.patterns);
2a0e047e
JB		 9494 if (new_triggers.tcp && new_triggers.tcp->sock)
9495 sock_release(new_triggers.tcp->sock);
9496 kfree(new_triggers.tcp);
ff1b6e69
JB		 9497 return err;
9498}
dfb89c56 9499#endif
ff1b6e69 9500
be29b99a
AK		 9501static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9502 struct cfg80211_registered_device *rdev)
9503{
9504 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9505 int i, j, pat_len;
9506 struct cfg80211_coalesce_rules *rule;
9507
9508 if (!rdev->coalesce->n_rules)
9509 return 0;
9510
9511 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9512 if (!nl_rules)
9513 return -ENOBUFS;
9514
9515 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9516 nl_rule = nla_nest_start(msg, i + 1);
9517 if (!nl_rule)
9518 return -ENOBUFS;
9519
9520 rule = &rdev->coalesce->rules[i];
9521 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9522 rule->delay))
9523 return -ENOBUFS;
9524
9525 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9526 rule->condition))
9527 return -ENOBUFS;
9528
9529 nl_pats = nla_nest_start(msg,
9530 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9531 if (!nl_pats)
9532 return -ENOBUFS;
9533
9534 for (j = 0; j < rule->n_patterns; j++) {
9535 nl_pat = nla_nest_start(msg, j + 1);
9536 if (!nl_pat)
9537 return -ENOBUFS;
9538 pat_len = rule->patterns[j].pattern_len;
9539 if (nla_put(msg, NL80211_PKTPAT_MASK,
9540 DIV_ROUND_UP(pat_len, 8),
9541 rule->patterns[j].mask) ||
9542 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9543 rule->patterns[j].pattern) ||
9544 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9545 rule->patterns[j].pkt_offset))
9546 return -ENOBUFS;
9547 nla_nest_end(msg, nl_pat);
9548 }
9549 nla_nest_end(msg, nl_pats);
9550 nla_nest_end(msg, nl_rule);
9551 }
9552 nla_nest_end(msg, nl_rules);
9553
9554 return 0;
9555}
9556
9557static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9558{
9559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9560 struct sk_buff *msg;
9561 void *hdr;
9562
9563 if (!rdev->wiphy.coalesce)
9564 return -EOPNOTSUPP;
9565
9566 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9567 if (!msg)
9568 return -ENOMEM;
9569
9570 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9571 NL80211_CMD_GET_COALESCE);
9572 if (!hdr)
9573 goto nla_put_failure;
9574
9575 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9576 goto nla_put_failure;
9577
9578 genlmsg_end(msg, hdr);
9579 return genlmsg_reply(msg, info);
9580
9581nla_put_failure:
9582 nlmsg_free(msg);
9583 return -ENOBUFS;
9584}
9585
9586void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9587{
9588 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9589 int i, j;
9590 struct cfg80211_coalesce_rules *rule;
9591
9592 if (!coalesce)
9593 return;
9594
9595 for (i = 0; i < coalesce->n_rules; i++) {
9596 rule = &coalesce->rules[i];
9597 for (j = 0; j < rule->n_patterns; j++)
9598 kfree(rule->patterns[j].mask);
9599 kfree(rule->patterns);
9600 }
9601 kfree(coalesce->rules);
9602 kfree(coalesce);
9603 rdev->coalesce = NULL;
9604}
9605
9606static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9607 struct nlattr *rule,
9608 struct cfg80211_coalesce_rules *new_rule)
9609{
9610 int err, i;
9611 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9612 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9613 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9614 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9615
9616 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9617 nla_len(rule), nl80211_coalesce_policy);
9618 if (err)
9619 return err;
9620
9621 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9622 new_rule->delay =
9623 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9624 if (new_rule->delay > coalesce->max_delay)
9625 return -EINVAL;
9626
9627 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9628 new_rule->condition =
9629 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9630 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9631 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9632 return -EINVAL;
9633
9634 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9635 return -EINVAL;
9636
9637 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9638 rem)
9639 n_patterns++;
9640 if (n_patterns > coalesce->n_patterns)
9641 return -EINVAL;
9642
9643 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9644 GFP_KERNEL);
9645 if (!new_rule->patterns)
9646 return -ENOMEM;
9647
9648 new_rule->n_patterns = n_patterns;
9649 i = 0;
9650
9651 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9652 rem) {
922bd80f
JB		 9653 u8 *mask_pat;
9654
be29b99a
AK		 9655 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9656 nla_len(pat), NULL);
9657 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9658 !pat_tb[NL80211_PKTPAT_PATTERN])
9659 return -EINVAL;
9660 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9661 mask_len = DIV_ROUND_UP(pat_len, 8);
9662 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9663 return -EINVAL;
9664 if (pat_len > coalesce->pattern_max_len ||
9665 pat_len < coalesce->pattern_min_len)
9666 return -EINVAL;
9667
9668 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9669 pkt_offset = 0;
9670 else
9671 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9672 if (pkt_offset > coalesce->max_pkt_offset)
9673 return -EINVAL;
9674 new_rule->patterns[i].pkt_offset = pkt_offset;
9675
922bd80f
JB		 9676 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9677 if (!mask_pat)
be29b99a 9678 return -ENOMEM;
922bd80f
JB		 9679
9680 new_rule->patterns[i].mask = mask_pat;
9681 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9682 mask_len);
9683
9684 mask_pat += mask_len;
9685 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9686 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9687 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9688 pat_len);
be29b99a
AK		 9689 i++;
9690 }
9691
9692 return 0;
9693}
9694
9695static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9696{
9697 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9698 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9699 struct cfg80211_coalesce new_coalesce = {};
9700 struct cfg80211_coalesce *n_coalesce;
9701 int err, rem_rule, n_rules = 0, i, j;
9702 struct nlattr *rule;
9703 struct cfg80211_coalesce_rules *tmp_rule;
9704
9705 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9706 return -EOPNOTSUPP;
9707
9708 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9709 cfg80211_rdev_free_coalesce(rdev);
9710 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9711 return 0;
9712 }
9713
9714 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9715 rem_rule)
9716 n_rules++;
9717 if (n_rules > coalesce->n_rules)
9718 return -EINVAL;
9719
9720 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9721 GFP_KERNEL);
9722 if (!new_coalesce.rules)
9723 return -ENOMEM;
9724
9725 new_coalesce.n_rules = n_rules;
9726 i = 0;
9727
9728 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9729 rem_rule) {
9730 err = nl80211_parse_coalesce_rule(rdev, rule,
9731 &new_coalesce.rules[i]);
9732 if (err)
9733 goto error;
9734
9735 i++;
9736 }
9737
9738 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9739 if (err)
9740 goto error;
9741
9742 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9743 if (!n_coalesce) {
9744 err = -ENOMEM;
9745 goto error;
9746 }
9747 cfg80211_rdev_free_coalesce(rdev);
9748 rdev->coalesce = n_coalesce;
9749
9750 return 0;
9751error:
9752 for (i = 0; i < new_coalesce.n_rules; i++) {
9753 tmp_rule = &new_coalesce.rules[i];
9754 for (j = 0; j < tmp_rule->n_patterns; j++)
9755 kfree(tmp_rule->patterns[j].mask);
9756 kfree(tmp_rule->patterns);
9757 }
9758 kfree(new_coalesce.rules);
9759
9760 return err;
9761}
9762
e5497d76
JB		 9763static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9764{
9765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9766 struct net_device *dev = info->user_ptr[1];
9767 struct wireless_dev *wdev = dev->ieee80211_ptr;
9768 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9769 struct cfg80211_gtk_rekey_data rekey_data;
9770 int err;
9771
9772 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9773 return -EINVAL;
9774
9775 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9776 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9777 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9778 nl80211_rekey_policy);
9779 if (err)
9780 return err;
9781
9782 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9783 return -ERANGE;
9784 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9785 return -ERANGE;
9786 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9787 return -ERANGE;
9788
78f686ca
JB		 9789 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9790 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9791 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9792
9793 wdev_lock(wdev);
9794 if (!wdev->current_bss) {
9795 err = -ENOTCONN;
9796 goto out;
9797 }
9798
9799 if (!rdev->ops->set_rekey_data) {
9800 err = -EOPNOTSUPP;
9801 goto out;
9802 }
9803
e35e4d28 9804 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9805 out:
9806 wdev_unlock(wdev);
9807 return err;
9808}
9809
28946da7
JB		 9810static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9811 struct genl_info *info)
9812{
9813 struct net_device *dev = info->user_ptr[1];
9814 struct wireless_dev *wdev = dev->ieee80211_ptr;
9815
9816 if (wdev->iftype != NL80211_IFTYPE_AP &&
9817 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9818 return -EINVAL;
9819
15e47304 9820 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9821 return -EBUSY;
9822
15e47304 9823 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9824 return 0;
9825}
9826
7f6cf311
JB		 9827static int nl80211_probe_client(struct sk_buff *skb,
9828 struct genl_info *info)
9829{
9830 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9831 struct net_device *dev = info->user_ptr[1];
9832 struct wireless_dev *wdev = dev->ieee80211_ptr;
9833 struct sk_buff *msg;
9834 void *hdr;
9835 const u8 *addr;
9836 u64 cookie;
9837 int err;
9838
9839 if (wdev->iftype != NL80211_IFTYPE_AP &&
9840 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9841 return -EOPNOTSUPP;
9842
9843 if (!info->attrs[NL80211_ATTR_MAC])
9844 return -EINVAL;
9845
9846 if (!rdev->ops->probe_client)
9847 return -EOPNOTSUPP;
9848
9849 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9850 if (!msg)
9851 return -ENOMEM;
9852
15e47304 9853 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9854 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9855 if (!hdr) {
9856 err = -ENOBUFS;
7f6cf311
JB		 9857 goto free_msg;
9858 }
9859
9860 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9861
e35e4d28 9862 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9863 if (err)
9864 goto free_msg;
9865
9360ffd1
DM		 9866 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9867 goto nla_put_failure;
7f6cf311
JB		 9868
9869 genlmsg_end(msg, hdr);
9870
9871 return genlmsg_reply(msg, info);
9872
9873 nla_put_failure:
9874 err = -ENOBUFS;
9875 free_msg:
9876 nlmsg_free(msg);
9877 return err;
9878}
9879
5e760230
JB		 9880static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9881{
9882 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9883 struct cfg80211_beacon_registration *reg, *nreg;
9884 int rv;
5e760230
JB		 9885
9886 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9887 return -EOPNOTSUPP;
9888
37c73b5f
BG		 9889 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9890 if (!nreg)
9891 return -ENOMEM;
9892
9893 /* First, check if already registered. */
9894 spin_lock_bh(&rdev->beacon_registrations_lock);
9895 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9896 if (reg->nlportid == info->snd_portid) {
9897 rv = -EALREADY;
9898 goto out_err;
9899 }
9900 }
9901 /* Add it to the list */
9902 nreg->nlportid = info->snd_portid;
9903 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9904
37c73b5f 9905 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9906
9907 return 0;
37c73b5f
BG		 9908out_err:
9909 spin_unlock_bh(&rdev->beacon_registrations_lock);
9910 kfree(nreg);
9911 return rv;
5e760230
JB		 9912}
9913
98104fde
JB		 9914static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9915{
9916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9917 struct wireless_dev *wdev = info->user_ptr[1];
9918 int err;
9919
9920 if (!rdev->ops->start_p2p_device)
9921 return -EOPNOTSUPP;
9922
9923 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9924 return -EOPNOTSUPP;
9925
9926 if (wdev->p2p_started)
9927 return 0;
9928
b6a55015
LC		 9929 if (rfkill_blocked(rdev->rfkill))
9930 return -ERFKILL;
98104fde 9931
eeb126e9 9932 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9933 if (err)
9934 return err;
9935
9936 wdev->p2p_started = true;
98104fde 9937 rdev->opencount++;
98104fde
JB		 9938
9939 return 0;
9940}
9941
9942static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9943{
9944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9945 struct wireless_dev *wdev = info->user_ptr[1];
9946
9947 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9948 return -EOPNOTSUPP;
9949
9950 if (!rdev->ops->stop_p2p_device)
9951 return -EOPNOTSUPP;
9952
f9f47529 9953 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9954
9955 return 0;
9956}
9957
3713b4e3
JB		 9958static int nl80211_get_protocol_features(struct sk_buff *skb,
9959 struct genl_info *info)
9960{
9961 void *hdr;
9962 struct sk_buff *msg;
9963
9964 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9965 if (!msg)
9966 return -ENOMEM;
9967
9968 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9969 NL80211_CMD_GET_PROTOCOL_FEATURES);
9970 if (!hdr)
9971 goto nla_put_failure;
9972
9973 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9974 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9975 goto nla_put_failure;
9976
9977 genlmsg_end(msg, hdr);
9978 return genlmsg_reply(msg, info);
9979
9980 nla_put_failure:
9981 kfree_skb(msg);
9982 return -ENOBUFS;
9983}
9984
355199e0
JM		 9985static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9986{
9987 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9988 struct cfg80211_update_ft_ies_params ft_params;
9989 struct net_device *dev = info->user_ptr[1];
9990
9991 if (!rdev->ops->update_ft_ies)
9992 return -EOPNOTSUPP;
9993
9994 if (!info->attrs[NL80211_ATTR_MDID] ||
9995 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9996 return -EINVAL;
9997
9998 memset(&ft_params, 0, sizeof(ft_params));
9999 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10000 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10001 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10002
10003 return rdev_update_ft_ies(rdev, dev, &ft_params);
10004}
10005
5de17984
AS		 10006static int nl80211_crit_protocol_start(struct sk_buff *skb,
10007 struct genl_info *info)
10008{
10009 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10010 struct wireless_dev *wdev = info->user_ptr[1];
10011 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10012 u16 duration;
10013 int ret;
10014
10015 if (!rdev->ops->crit_proto_start)
10016 return -EOPNOTSUPP;
10017
10018 if (WARN_ON(!rdev->ops->crit_proto_stop))
10019 return -EINVAL;
10020
10021 if (rdev->crit_proto_nlportid)
10022 return -EBUSY;
10023
10024 /* determine protocol if provided */
10025 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10026 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10027
10028 if (proto >= NUM_NL80211_CRIT_PROTO)
10029 return -EINVAL;
10030
10031 /* timeout must be provided */
10032 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10033 return -EINVAL;
10034
10035 duration =
10036 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10037
10038 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10039 return -ERANGE;
10040
10041 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10042 if (!ret)
10043 rdev->crit_proto_nlportid = info->snd_portid;
10044
10045 return ret;
10046}
10047
10048static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10049 struct genl_info *info)
10050{
10051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10052 struct wireless_dev *wdev = info->user_ptr[1];
10053
10054 if (!rdev->ops->crit_proto_stop)
10055 return -EOPNOTSUPP;
10056
10057 if (rdev->crit_proto_nlportid) {
10058 rdev->crit_proto_nlportid = 0;
10059 rdev_crit_proto_stop(rdev, wdev);
10060 }
10061 return 0;
10062}
10063
ad7e718c
JB		 10064static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10065{
10066 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10067 struct wireless_dev *wdev =
10068 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10069 int i, err;
10070 u32 vid, subcmd;
10071
10072 if (!rdev->wiphy.vendor_commands)
10073 return -EOPNOTSUPP;
10074
10075 if (IS_ERR(wdev)) {
10076 err = PTR_ERR(wdev);
10077 if (err != -EINVAL)
10078 return err;
10079 wdev = NULL;
10080 } else if (wdev->wiphy != &rdev->wiphy) {
10081 return -EINVAL;
10082 }
10083
10084 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10085 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10086 return -EINVAL;
10087
10088 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10089 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10090 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10091 const struct wiphy_vendor_command *vcmd;
10092 void *data = NULL;
10093 int len = 0;
10094
10095 vcmd = &rdev->wiphy.vendor_commands[i];
10096
10097 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10098 continue;
10099
10100 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10101 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10102 if (!wdev)
10103 return -EINVAL;
10104 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10105 !wdev->netdev)
10106 return -EINVAL;
10107
10108 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10109 if (wdev->netdev &&
10110 !netif_running(wdev->netdev))
10111 return -ENETDOWN;
10112 if (!wdev->netdev && !wdev->p2p_started)
10113 return -ENETDOWN;
10114 }
7bdbe400
JB		 10115
10116 if (!vcmd->doit)
10117 return -EOPNOTSUPP;
ad7e718c
JB		 10118 } else {
10119 wdev = NULL;
10120 }
10121
10122 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10123 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10124 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10125 }
10126
10127 rdev->cur_cmd_info = info;
10128 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10129 data, len);
10130 rdev->cur_cmd_info = NULL;
10131 return err;
10132 }
10133
10134 return -EOPNOTSUPP;
10135}
10136
7bdbe400
JB		 10137static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10138 struct netlink_callback *cb,
10139 struct cfg80211_registered_device **rdev,
10140 struct wireless_dev **wdev)
10141{
10142 u32 vid, subcmd;
10143 unsigned int i;
10144 int vcmd_idx = -1;
10145 int err;
10146 void *data = NULL;
10147 unsigned int data_len = 0;
10148
10149 rtnl_lock();
10150
10151 if (cb->args[0]) {
10152 /* subtract the 1 again here */
10153 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10154 struct wireless_dev *tmp;
10155
10156 if (!wiphy) {
10157 err = -ENODEV;
10158 goto out_unlock;
10159 }
10160 *rdev = wiphy_to_rdev(wiphy);
10161 *wdev = NULL;
10162
10163 if (cb->args[1]) {
10164 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
10165 if (tmp->identifier == cb->args[1] - 1) {
10166 *wdev = tmp;
10167 break;
10168 }
10169 }
10170 }
10171
10172 /* keep rtnl locked in successful case */
10173 return 0;
10174 }
10175
10176 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10177 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10178 nl80211_policy);
10179 if (err)
10180 goto out_unlock;
10181
10182 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10183 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10184 err = -EINVAL;
10185 goto out_unlock;
10186 }
10187
10188 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10189 nl80211_fam.attrbuf);
10190 if (IS_ERR(*wdev))
10191 *wdev = NULL;
10192
10193 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10194 nl80211_fam.attrbuf);
10195 if (IS_ERR(*rdev)) {
10196 err = PTR_ERR(*rdev);
10197 goto out_unlock;
10198 }
10199
10200 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10201 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10202
10203 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10204 const struct wiphy_vendor_command *vcmd;
10205
10206 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10207
10208 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10209 continue;
10210
10211 if (!vcmd->dumpit) {
10212 err = -EOPNOTSUPP;
10213 goto out_unlock;
10214 }
10215
10216 vcmd_idx = i;
10217 break;
10218 }
10219
10220 if (vcmd_idx < 0) {
10221 err = -EOPNOTSUPP;
10222 goto out_unlock;
10223 }
10224
10225 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10226 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10227 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10228 }
10229
10230 /* 0 is the first index - add 1 to parse only once */
10231 cb->args[0] = (*rdev)->wiphy_idx + 1;
10232 /* add 1 to know if it was NULL */
10233 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10234 cb->args[2] = vcmd_idx;
10235 cb->args[3] = (unsigned long)data;
10236 cb->args[4] = data_len;
10237
10238 /* keep rtnl locked in successful case */
10239 return 0;
10240 out_unlock:
10241 rtnl_unlock();
10242 return err;
10243}
10244
10245static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10246 struct netlink_callback *cb)
10247{
10248 struct cfg80211_registered_device *rdev;
10249 struct wireless_dev *wdev;
10250 unsigned int vcmd_idx;
10251 const struct wiphy_vendor_command *vcmd;
10252 void *data;
10253 int data_len;
10254 int err;
10255 struct nlattr *vendor_data;
10256
10257 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10258 if (err)
10259 return err;
10260
10261 vcmd_idx = cb->args[2];
10262 data = (void *)cb->args[3];
10263 data_len = cb->args[4];
10264 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10265
10266 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10267 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10268 if (!wdev)
10269 return -EINVAL;
10270 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10271 !wdev->netdev)
10272 return -EINVAL;
10273
10274 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10275 if (wdev->netdev &&
10276 !netif_running(wdev->netdev))
10277 return -ENETDOWN;
10278 if (!wdev->netdev && !wdev->p2p_started)
10279 return -ENETDOWN;
10280 }
10281 }
10282
10283 while (1) {
10284 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10285 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10286 NL80211_CMD_VENDOR);
10287 if (!hdr)
10288 break;
10289
10290 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10291 (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV,
10292 wdev_id(wdev)))) {
10293 genlmsg_cancel(skb, hdr);
10294 break;
10295 }
10296
10297 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10298 if (!vendor_data) {
10299 genlmsg_cancel(skb, hdr);
10300 break;
10301 }
10302
10303 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10304 (unsigned long *)&cb->args[5]);
10305 nla_nest_end(skb, vendor_data);
10306
10307 if (err == -ENOBUFS || err == -ENOENT) {
10308 genlmsg_cancel(skb, hdr);
10309 break;
10310 } else if (err) {
10311 genlmsg_cancel(skb, hdr);
10312 goto out;
10313 }
10314
10315 genlmsg_end(skb, hdr);
10316 }
10317
10318 err = skb->len;
10319 out:
10320 rtnl_unlock();
10321 return err;
10322}
10323
ad7e718c
JB		 10324struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10325 enum nl80211_commands cmd,
10326 enum nl80211_attrs attr,
10327 int approxlen)
10328{
f26cbf40 10329 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10330
10331 if (WARN_ON(!rdev->cur_cmd_info))
10332 return NULL;
10333
6c09e791 10334 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10335 rdev->cur_cmd_info->snd_portid,
10336 rdev->cur_cmd_info->snd_seq,
567ffc35 10337 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10338}
10339EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10340
10341int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10342{
10343 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10344 void *hdr = ((void **)skb->cb)[1];
10345 struct nlattr *data = ((void **)skb->cb)[2];
10346
bd8c78e7
JB		 10347 /* clear CB data for netlink core to own from now on */
10348 memset(skb->cb, 0, sizeof(skb->cb));
10349
ad7e718c
JB		 10350 if (WARN_ON(!rdev->cur_cmd_info)) {
10351 kfree_skb(skb);
10352 return -EINVAL;
10353 }
10354
10355 nla_nest_end(skb, data);
10356 genlmsg_end(skb, hdr);
10357 return genlmsg_reply(skb, rdev->cur_cmd_info);
10358}
10359EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10360
10361
fa9ffc74
KP		 10362static int nl80211_set_qos_map(struct sk_buff *skb,
10363 struct genl_info *info)
10364{
10365 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10366 struct cfg80211_qos_map *qos_map = NULL;
10367 struct net_device *dev = info->user_ptr[1];
10368 u8 *pos, len, num_des, des_len, des;
10369 int ret;
10370
10371 if (!rdev->ops->set_qos_map)
10372 return -EOPNOTSUPP;
10373
10374 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10375 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10376 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10377
10378 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10379 len > IEEE80211_QOS_MAP_LEN_MAX)
10380 return -EINVAL;
10381
10382 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10383 if (!qos_map)
10384 return -ENOMEM;
10385
10386 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10387 if (num_des) {
10388 des_len = num_des *
10389 sizeof(struct cfg80211_dscp_exception);
10390 memcpy(qos_map->dscp_exception, pos, des_len);
10391 qos_map->num_des = num_des;
10392 for (des = 0; des < num_des; des++) {
10393 if (qos_map->dscp_exception[des].up > 7) {
10394 kfree(qos_map);
10395 return -EINVAL;
10396 }
10397 }
10398 pos += des_len;
10399 }
10400 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10401 }
10402
10403 wdev_lock(dev->ieee80211_ptr);
10404 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10405 if (!ret)
10406 ret = rdev_set_qos_map(rdev, dev, qos_map);
10407 wdev_unlock(dev->ieee80211_ptr);
10408
10409 kfree(qos_map);
10410 return ret;
10411}
10412
960d01ac
JB		 10413static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10414{
10415 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10416 struct net_device *dev = info->user_ptr[1];
10417 struct wireless_dev *wdev = dev->ieee80211_ptr;
10418 const u8 *peer;
10419 u8 tsid, up;
10420 u16 admitted_time = 0;
10421 int err;
10422
723e73ac 10423 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10424 return -EOPNOTSUPP;
10425
10426 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10427 !info->attrs[NL80211_ATTR_USER_PRIO])
10428 return -EINVAL;
10429
10430 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10431 if (tsid >= IEEE80211_NUM_TIDS)
10432 return -EINVAL;
10433
10434 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10435 if (up >= IEEE80211_NUM_UPS)
10436 return -EINVAL;
10437
10438 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10439 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10440 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10441 * need more attributes for that (e.g. BA session requirement);
10442 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10443 */
10444 return -EINVAL;
10445 }
10446
10447 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10448
10449 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10450 admitted_time =
10451 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10452 if (!admitted_time)
10453 return -EINVAL;
10454 }
10455
10456 wdev_lock(wdev);
10457 switch (wdev->iftype) {
10458 case NL80211_IFTYPE_STATION:
10459 case NL80211_IFTYPE_P2P_CLIENT:
10460 if (wdev->current_bss)
10461 break;
10462 err = -ENOTCONN;
10463 goto out;
10464 default:
10465 err = -EOPNOTSUPP;
10466 goto out;
10467 }
10468
10469 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10470
10471 out:
10472 wdev_unlock(wdev);
10473 return err;
10474}
10475
10476static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10477{
10478 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10479 struct net_device *dev = info->user_ptr[1];
10480 struct wireless_dev *wdev = dev->ieee80211_ptr;
10481 const u8 *peer;
10482 u8 tsid;
10483 int err;
10484
10485 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10486 return -EINVAL;
10487
10488 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10489 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10490
10491 wdev_lock(wdev);
10492 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10493 wdev_unlock(wdev);
10494
10495 return err;
10496}
10497
1057d35e
AN		 10498static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10499 struct genl_info *info)
10500{
10501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10502 struct net_device *dev = info->user_ptr[1];
10503 struct wireless_dev *wdev = dev->ieee80211_ptr;
10504 struct cfg80211_chan_def chandef = {};
10505 const u8 *addr;
10506 u8 oper_class;
10507 int err;
10508
10509 if (!rdev->ops->tdls_channel_switch ||
10510 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10511 return -EOPNOTSUPP;
10512
10513 switch (dev->ieee80211_ptr->iftype) {
10514 case NL80211_IFTYPE_STATION:
10515 case NL80211_IFTYPE_P2P_CLIENT:
10516 break;
10517 default:
10518 return -EOPNOTSUPP;
10519 }
10520
10521 if (!info->attrs[NL80211_ATTR_MAC] ||
10522 !info->attrs[NL80211_ATTR_OPER_CLASS])
10523 return -EINVAL;
10524
10525 err = nl80211_parse_chandef(rdev, info, &chandef);
10526 if (err)
10527 return err;
10528
10529 /*
10530 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10531 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10532 * specification is not defined for them.
10533 */
10534 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10535 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10536 chandef.width != NL80211_CHAN_WIDTH_20)
10537 return -EINVAL;
10538
10539 /* we will be active on the TDLS link */
923b352f
AN		 10540 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10541 wdev->iftype))
1057d35e
AN		 10542 return -EINVAL;
10543
10544 /* don't allow switching to DFS channels */
10545 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10546 return -EINVAL;
10547
10548 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10549 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10550
10551 wdev_lock(wdev);
10552 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10553 wdev_unlock(wdev);
10554
10555 return err;
10556}
10557
10558static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10559 struct genl_info *info)
10560{
10561 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10562 struct net_device *dev = info->user_ptr[1];
10563 struct wireless_dev *wdev = dev->ieee80211_ptr;
10564 const u8 *addr;
10565
10566 if (!rdev->ops->tdls_channel_switch ||
10567 !rdev->ops->tdls_cancel_channel_switch ||
10568 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10569 return -EOPNOTSUPP;
10570
10571 switch (dev->ieee80211_ptr->iftype) {
10572 case NL80211_IFTYPE_STATION:
10573 case NL80211_IFTYPE_P2P_CLIENT:
10574 break;
10575 default:
10576 return -EOPNOTSUPP;
10577 }
10578
10579 if (!info->attrs[NL80211_ATTR_MAC])
10580 return -EINVAL;
10581
10582 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10583
10584 wdev_lock(wdev);
10585 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10586 wdev_unlock(wdev);
10587
10588 return 0;
10589}
10590
4c476991
JB		 10591#define NL80211_FLAG_NEED_WIPHY 0x01
10592#define NL80211_FLAG_NEED_NETDEV 0x02
10593#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10594#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10595#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10596 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10597#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10598/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10599#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10600 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10601#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10602
f84f771d 10603static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10604 struct genl_info *info)
10605{
10606 struct cfg80211_registered_device *rdev;
89a54e48 10607 struct wireless_dev *wdev;
4c476991 10608 struct net_device *dev;
4c476991
JB		 10609 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10610
10611 if (rtnl)
10612 rtnl_lock();
10613
10614 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10615 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10616 if (IS_ERR(rdev)) {
10617 if (rtnl)
10618 rtnl_unlock();
10619 return PTR_ERR(rdev);
10620 }
10621 info->user_ptr[0] = rdev;
1bf614ef
JB		 10622 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10623 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10624 ASSERT_RTNL();
10625
89a54e48
JB		 10626 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10627 info->attrs);
10628 if (IS_ERR(wdev)) {
4c476991
JB		 10629 if (rtnl)
10630 rtnl_unlock();
89a54e48 10631 return PTR_ERR(wdev);
4c476991 10632 }
89a54e48 10633
89a54e48 10634 dev = wdev->netdev;
f26cbf40 10635 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10636
1bf614ef
JB		 10637 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10638 if (!dev) {
1bf614ef
JB		 10639 if (rtnl)
10640 rtnl_unlock();
10641 return -EINVAL;
10642 }
10643
10644 info->user_ptr[1] = dev;
10645 } else {
10646 info->user_ptr[1] = wdev;
41265714 10647 }
1bf614ef
JB		 10648
10649 if (dev) {
10650 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10651 !netif_running(dev)) {
1bf614ef
JB		 10652 if (rtnl)
10653 rtnl_unlock();
10654 return -ENETDOWN;
10655 }
10656
10657 dev_hold(dev);
98104fde
JB		 10658 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10659 if (!wdev->p2p_started) {
98104fde
JB		 10660 if (rtnl)
10661 rtnl_unlock();
10662 return -ENETDOWN;
10663 }
41265714 10664 }
89a54e48 10665
4c476991 10666 info->user_ptr[0] = rdev;
4c476991
JB		 10667 }
10668
10669 return 0;
10670}
10671
f84f771d 10672static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10673 struct genl_info *info)
10674{
1bf614ef
JB		 10675 if (info->user_ptr[1]) {
10676 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10677 struct wireless_dev *wdev = info->user_ptr[1];
10678
10679 if (wdev->netdev)
10680 dev_put(wdev->netdev);
10681 } else {
10682 dev_put(info->user_ptr[1]);
10683 }
10684 }
5393b917 10685
4c476991
JB		 10686 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10687 rtnl_unlock();
5393b917
JB		 10688
10689 /* If needed, clear the netlink message payload from the SKB
10690 * as it might contain key data that shouldn't stick around on
10691 * the heap after the SKB is freed. The netlink message header
10692 * is still needed for further processing, so leave it intact.
10693 */
10694 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10695 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10696
10697 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10698 }
4c476991
JB		 10699}
10700
4534de83 10701static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10702 {
10703 .cmd = NL80211_CMD_GET_WIPHY,
10704 .doit = nl80211_get_wiphy,
10705 .dumpit = nl80211_dump_wiphy,
86e8cf98 10706 .done = nl80211_dump_wiphy_done,
55682965
JB		 10707 .policy = nl80211_policy,
10708 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10709 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10710 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10711 },
10712 {
10713 .cmd = NL80211_CMD_SET_WIPHY,
10714 .doit = nl80211_set_wiphy,
10715 .policy = nl80211_policy,
10716 .flags = GENL_ADMIN_PERM,
4c476991 10717 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10718 },
10719 {
10720 .cmd = NL80211_CMD_GET_INTERFACE,
10721 .doit = nl80211_get_interface,
10722 .dumpit = nl80211_dump_interface,
10723 .policy = nl80211_policy,
10724 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10725 .internal_flags = NL80211_FLAG_NEED_WDEV |
10726 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10727 },
10728 {
10729 .cmd = NL80211_CMD_SET_INTERFACE,
10730 .doit = nl80211_set_interface,
10731 .policy = nl80211_policy,
10732 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10733 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10734 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10735 },
10736 {
10737 .cmd = NL80211_CMD_NEW_INTERFACE,
10738 .doit = nl80211_new_interface,
10739 .policy = nl80211_policy,
10740 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10741 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10742 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10743 },
10744 {
10745 .cmd = NL80211_CMD_DEL_INTERFACE,
10746 .doit = nl80211_del_interface,
10747 .policy = nl80211_policy,
41ade00f 10748 .flags = GENL_ADMIN_PERM,
84efbb84 10749 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10750 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10751 },
10752 {
10753 .cmd = NL80211_CMD_GET_KEY,
10754 .doit = nl80211_get_key,
10755 .policy = nl80211_policy,
10756 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10757 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10758 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10759 },
10760 {
10761 .cmd = NL80211_CMD_SET_KEY,
10762 .doit = nl80211_set_key,
10763 .policy = nl80211_policy,
10764 .flags = GENL_ADMIN_PERM,
41265714 10765 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10766 NL80211_FLAG_NEED_RTNL |
10767 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10768 },
10769 {
10770 .cmd = NL80211_CMD_NEW_KEY,
10771 .doit = nl80211_new_key,
10772 .policy = nl80211_policy,
10773 .flags = GENL_ADMIN_PERM,
41265714 10774 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10775 NL80211_FLAG_NEED_RTNL |
10776 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10777 },
10778 {
10779 .cmd = NL80211_CMD_DEL_KEY,
10780 .doit = nl80211_del_key,
10781 .policy = nl80211_policy,
55682965 10782 .flags = GENL_ADMIN_PERM,
41265714 10783 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10784 NL80211_FLAG_NEED_RTNL,
55682965 10785 },
ed1b6cc7
JB		 10786 {
10787 .cmd = NL80211_CMD_SET_BEACON,
10788 .policy = nl80211_policy,
10789 .flags = GENL_ADMIN_PERM,
8860020e 10790 .doit = nl80211_set_beacon,
2b5f8b0b 10791 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10792 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10793 },
10794 {
8860020e 10795 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10796 .policy = nl80211_policy,
10797 .flags = GENL_ADMIN_PERM,
8860020e 10798 .doit = nl80211_start_ap,
2b5f8b0b 10799 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10800 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10801 },
10802 {
8860020e 10803 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10804 .policy = nl80211_policy,
10805 .flags = GENL_ADMIN_PERM,
8860020e 10806 .doit = nl80211_stop_ap,
2b5f8b0b 10807 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10808 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10809 },
5727ef1b
JB		 10810 {
10811 .cmd = NL80211_CMD_GET_STATION,
10812 .doit = nl80211_get_station,
2ec600d6 10813 .dumpit = nl80211_dump_station,
5727ef1b 10814 .policy = nl80211_policy,
4c476991
JB		 10815 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10816 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10817 },
10818 {
10819 .cmd = NL80211_CMD_SET_STATION,
10820 .doit = nl80211_set_station,
10821 .policy = nl80211_policy,
10822 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10823 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10824 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10825 },
10826 {
10827 .cmd = NL80211_CMD_NEW_STATION,
10828 .doit = nl80211_new_station,
10829 .policy = nl80211_policy,
10830 .flags = GENL_ADMIN_PERM,
41265714 10831 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10832 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10833 },
10834 {
10835 .cmd = NL80211_CMD_DEL_STATION,
10836 .doit = nl80211_del_station,
10837 .policy = nl80211_policy,
2ec600d6 10838 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10839 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10840 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10841 },
10842 {
10843 .cmd = NL80211_CMD_GET_MPATH,
10844 .doit = nl80211_get_mpath,
10845 .dumpit = nl80211_dump_mpath,
10846 .policy = nl80211_policy,
10847 .flags = GENL_ADMIN_PERM,
41265714 10848 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10849 NL80211_FLAG_NEED_RTNL,
2ec600d6 10850 },
66be7d2b
HR		 10851 {
10852 .cmd = NL80211_CMD_GET_MPP,
10853 .doit = nl80211_get_mpp,
10854 .dumpit = nl80211_dump_mpp,
10855 .policy = nl80211_policy,
10856 .flags = GENL_ADMIN_PERM,
10857 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10858 NL80211_FLAG_NEED_RTNL,
10859 },
2ec600d6
LCC		 10860 {
10861 .cmd = NL80211_CMD_SET_MPATH,
10862 .doit = nl80211_set_mpath,
10863 .policy = nl80211_policy,
10864 .flags = GENL_ADMIN_PERM,
41265714 10865 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10866 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10867 },
10868 {
10869 .cmd = NL80211_CMD_NEW_MPATH,
10870 .doit = nl80211_new_mpath,
10871 .policy = nl80211_policy,
10872 .flags = GENL_ADMIN_PERM,
41265714 10873 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10874 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10875 },
10876 {
10877 .cmd = NL80211_CMD_DEL_MPATH,
10878 .doit = nl80211_del_mpath,
10879 .policy = nl80211_policy,
9f1ba906 10880 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10881 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10882 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10883 },
10884 {
10885 .cmd = NL80211_CMD_SET_BSS,
10886 .doit = nl80211_set_bss,
10887 .policy = nl80211_policy,
b2e1b302 10888 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10889 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10890 NL80211_FLAG_NEED_RTNL,
b2e1b302 10891 },
f130347c
LR		 10892 {
10893 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10894 .doit = nl80211_get_reg_do,
10895 .dumpit = nl80211_get_reg_dump,
f130347c 10896 .policy = nl80211_policy,
5fe231e8 10897 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10898 /* can be retrieved by unprivileged users */
10899 },
b6863036 10900#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 10901 {
10902 .cmd = NL80211_CMD_SET_REG,
10903 .doit = nl80211_set_reg,
10904 .policy = nl80211_policy,
10905 .flags = GENL_ADMIN_PERM,
5fe231e8 10906 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 10907 },
b6863036 10908#endif
b2e1b302
LR		 10909 {
10910 .cmd = NL80211_CMD_REQ_SET_REG,
10911 .doit = nl80211_req_set_reg,
10912 .policy = nl80211_policy,
93da9cc1 10913 .flags = GENL_ADMIN_PERM,
10914 },
10915 {
24bdd9f4
JC		 10916 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10917 .doit = nl80211_get_mesh_config,
93da9cc1 10918 .policy = nl80211_policy,
10919 /* can be retrieved by unprivileged users */
2b5f8b0b 10920 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10921 NL80211_FLAG_NEED_RTNL,
93da9cc1 10922 },
10923 {
24bdd9f4
JC		 10924 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10925 .doit = nl80211_update_mesh_config,
93da9cc1 10926 .policy = nl80211_policy,
9aed3cc1 10927 .flags = GENL_ADMIN_PERM,
29cbe68c 10928 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10929 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10930 },
2a519311
JB		 10931 {
10932 .cmd = NL80211_CMD_TRIGGER_SCAN,
10933 .doit = nl80211_trigger_scan,
10934 .policy = nl80211_policy,
10935 .flags = GENL_ADMIN_PERM,
fd014284 10936 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10937 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10938 },
10939 {
10940 .cmd = NL80211_CMD_GET_SCAN,
10941 .policy = nl80211_policy,
10942 .dumpit = nl80211_dump_scan,
10943 },
807f8a8c
LC		 10944 {
10945 .cmd = NL80211_CMD_START_SCHED_SCAN,
10946 .doit = nl80211_start_sched_scan,
10947 .policy = nl80211_policy,
10948 .flags = GENL_ADMIN_PERM,
10949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10950 NL80211_FLAG_NEED_RTNL,
10951 },
10952 {
10953 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10954 .doit = nl80211_stop_sched_scan,
10955 .policy = nl80211_policy,
10956 .flags = GENL_ADMIN_PERM,
10957 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10958 NL80211_FLAG_NEED_RTNL,
10959 },
636a5d36
JM		 10960 {
10961 .cmd = NL80211_CMD_AUTHENTICATE,
10962 .doit = nl80211_authenticate,
10963 .policy = nl80211_policy,
10964 .flags = GENL_ADMIN_PERM,
41265714 10965 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10966 NL80211_FLAG_NEED_RTNL |
10967 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10968 },
10969 {
10970 .cmd = NL80211_CMD_ASSOCIATE,
10971 .doit = nl80211_associate,
10972 .policy = nl80211_policy,
10973 .flags = GENL_ADMIN_PERM,
41265714 10974 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10975 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10976 },
10977 {
10978 .cmd = NL80211_CMD_DEAUTHENTICATE,
10979 .doit = nl80211_deauthenticate,
10980 .policy = nl80211_policy,
10981 .flags = GENL_ADMIN_PERM,
41265714 10982 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10983 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10984 },
10985 {
10986 .cmd = NL80211_CMD_DISASSOCIATE,
10987 .doit = nl80211_disassociate,
10988 .policy = nl80211_policy,
10989 .flags = GENL_ADMIN_PERM,
41265714 10990 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10991 NL80211_FLAG_NEED_RTNL,
636a5d36 10992 },
04a773ad
JB		 10993 {
10994 .cmd = NL80211_CMD_JOIN_IBSS,
10995 .doit = nl80211_join_ibss,
10996 .policy = nl80211_policy,
10997 .flags = GENL_ADMIN_PERM,
41265714 10998 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10999 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11000 },
11001 {
11002 .cmd = NL80211_CMD_LEAVE_IBSS,
11003 .doit = nl80211_leave_ibss,
11004 .policy = nl80211_policy,
11005 .flags = GENL_ADMIN_PERM,
41265714 11006 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11007 NL80211_FLAG_NEED_RTNL,
04a773ad 11008 },
aff89a9b
JB		 11009#ifdef CONFIG_NL80211_TESTMODE
11010 {
11011 .cmd = NL80211_CMD_TESTMODE,
11012 .doit = nl80211_testmode_do,
71063f0e 11013 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 11014 .policy = nl80211_policy,
11015 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11016 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11017 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11018 },
11019#endif
b23aa676
SO		 11020 {
11021 .cmd = NL80211_CMD_CONNECT,
11022 .doit = nl80211_connect,
11023 .policy = nl80211_policy,
11024 .flags = GENL_ADMIN_PERM,
41265714 11025 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11026 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11027 },
11028 {
11029 .cmd = NL80211_CMD_DISCONNECT,
11030 .doit = nl80211_disconnect,
11031 .policy = nl80211_policy,
11032 .flags = GENL_ADMIN_PERM,
41265714 11033 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11034 NL80211_FLAG_NEED_RTNL,
b23aa676 11035 },
463d0183
JB		 11036 {
11037 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11038 .doit = nl80211_wiphy_netns,
11039 .policy = nl80211_policy,
11040 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11041 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11042 NL80211_FLAG_NEED_RTNL,
463d0183 11043 },
61fa713c
HS		 11044 {
11045 .cmd = NL80211_CMD_GET_SURVEY,
11046 .policy = nl80211_policy,
11047 .dumpit = nl80211_dump_survey,
11048 },
67fbb16b
SO		 11049 {
11050 .cmd = NL80211_CMD_SET_PMKSA,
11051 .doit = nl80211_setdel_pmksa,
11052 .policy = nl80211_policy,
11053 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11054 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11055 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11056 },
11057 {
11058 .cmd = NL80211_CMD_DEL_PMKSA,
11059 .doit = nl80211_setdel_pmksa,
11060 .policy = nl80211_policy,
11061 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11062 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11063 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11064 },
11065 {
11066 .cmd = NL80211_CMD_FLUSH_PMKSA,
11067 .doit = nl80211_flush_pmksa,
11068 .policy = nl80211_policy,
11069 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11070 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11071 NL80211_FLAG_NEED_RTNL,
67fbb16b 11072 },
9588bbd5
JM		 11073 {
11074 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11075 .doit = nl80211_remain_on_channel,
11076 .policy = nl80211_policy,
11077 .flags = GENL_ADMIN_PERM,
71bbc994 11078 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11079 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11080 },
11081 {
11082 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11083 .doit = nl80211_cancel_remain_on_channel,
11084 .policy = nl80211_policy,
11085 .flags = GENL_ADMIN_PERM,
71bbc994 11086 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11087 NL80211_FLAG_NEED_RTNL,
9588bbd5 11088 },
13ae75b1
JM		 11089 {
11090 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11091 .doit = nl80211_set_tx_bitrate_mask,
11092 .policy = nl80211_policy,
11093 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11094 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11095 NL80211_FLAG_NEED_RTNL,
13ae75b1 11096 },
026331c4 11097 {
2e161f78
JB		 11098 .cmd = NL80211_CMD_REGISTER_FRAME,
11099 .doit = nl80211_register_mgmt,
026331c4
JM		 11100 .policy = nl80211_policy,
11101 .flags = GENL_ADMIN_PERM,
71bbc994 11102 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11103 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11104 },
11105 {
2e161f78
JB		 11106 .cmd = NL80211_CMD_FRAME,
11107 .doit = nl80211_tx_mgmt,
026331c4 11108 .policy = nl80211_policy,
f7ca38df 11109 .flags = GENL_ADMIN_PERM,
71bbc994 11110 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11111 NL80211_FLAG_NEED_RTNL,
11112 },
11113 {
11114 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11115 .doit = nl80211_tx_mgmt_cancel_wait,
11116 .policy = nl80211_policy,
026331c4 11117 .flags = GENL_ADMIN_PERM,
71bbc994 11118 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11119 NL80211_FLAG_NEED_RTNL,
026331c4 11120 },
ffb9eb3d
KV		 11121 {
11122 .cmd = NL80211_CMD_SET_POWER_SAVE,
11123 .doit = nl80211_set_power_save,
11124 .policy = nl80211_policy,
11125 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11126 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11127 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11128 },
11129 {
11130 .cmd = NL80211_CMD_GET_POWER_SAVE,
11131 .doit = nl80211_get_power_save,
11132 .policy = nl80211_policy,
11133 /* can be retrieved by unprivileged users */
4c476991
JB		 11134 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11135 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11136 },
d6dc1a38
JO		 11137 {
11138 .cmd = NL80211_CMD_SET_CQM,
11139 .doit = nl80211_set_cqm,
11140 .policy = nl80211_policy,
11141 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11142 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11143 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11144 },
f444de05
JB		 11145 {
11146 .cmd = NL80211_CMD_SET_CHANNEL,
11147 .doit = nl80211_set_channel,
11148 .policy = nl80211_policy,
11149 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11150 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11151 NL80211_FLAG_NEED_RTNL,
f444de05 11152 },
e8347eba
BJ		 11153 {
11154 .cmd = NL80211_CMD_SET_WDS_PEER,
11155 .doit = nl80211_set_wds_peer,
11156 .policy = nl80211_policy,
11157 .flags = GENL_ADMIN_PERM,
43b19952
JB		 11158 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11159 NL80211_FLAG_NEED_RTNL,
e8347eba 11160 },
29cbe68c
JB		 11161 {
11162 .cmd = NL80211_CMD_JOIN_MESH,
11163 .doit = nl80211_join_mesh,
11164 .policy = nl80211_policy,
11165 .flags = GENL_ADMIN_PERM,
11166 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11167 NL80211_FLAG_NEED_RTNL,
11168 },
11169 {
11170 .cmd = NL80211_CMD_LEAVE_MESH,
11171 .doit = nl80211_leave_mesh,
11172 .policy = nl80211_policy,
11173 .flags = GENL_ADMIN_PERM,
11174 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11175 NL80211_FLAG_NEED_RTNL,
11176 },
6e0bd6c3
RL		 11177 {
11178 .cmd = NL80211_CMD_JOIN_OCB,
11179 .doit = nl80211_join_ocb,
11180 .policy = nl80211_policy,
11181 .flags = GENL_ADMIN_PERM,
11182 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11183 NL80211_FLAG_NEED_RTNL,
11184 },
11185 {
11186 .cmd = NL80211_CMD_LEAVE_OCB,
11187 .doit = nl80211_leave_ocb,
11188 .policy = nl80211_policy,
11189 .flags = GENL_ADMIN_PERM,
11190 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11191 NL80211_FLAG_NEED_RTNL,
11192 },
dfb89c56 11193#ifdef CONFIG_PM
ff1b6e69
JB		 11194 {
11195 .cmd = NL80211_CMD_GET_WOWLAN,
11196 .doit = nl80211_get_wowlan,
11197 .policy = nl80211_policy,
11198 /* can be retrieved by unprivileged users */
11199 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11200 NL80211_FLAG_NEED_RTNL,
11201 },
11202 {
11203 .cmd = NL80211_CMD_SET_WOWLAN,
11204 .doit = nl80211_set_wowlan,
11205 .policy = nl80211_policy,
11206 .flags = GENL_ADMIN_PERM,
11207 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11208 NL80211_FLAG_NEED_RTNL,
11209 },
dfb89c56 11210#endif
e5497d76
JB		 11211 {
11212 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11213 .doit = nl80211_set_rekey_data,
11214 .policy = nl80211_policy,
11215 .flags = GENL_ADMIN_PERM,
11216 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11217 NL80211_FLAG_NEED_RTNL |
11218 NL80211_FLAG_CLEAR_SKB,
e5497d76 11219 },
109086ce
AN		 11220 {
11221 .cmd = NL80211_CMD_TDLS_MGMT,
11222 .doit = nl80211_tdls_mgmt,
11223 .policy = nl80211_policy,
11224 .flags = GENL_ADMIN_PERM,
11225 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11226 NL80211_FLAG_NEED_RTNL,
11227 },
11228 {
11229 .cmd = NL80211_CMD_TDLS_OPER,
11230 .doit = nl80211_tdls_oper,
11231 .policy = nl80211_policy,
11232 .flags = GENL_ADMIN_PERM,
11233 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11234 NL80211_FLAG_NEED_RTNL,
11235 },
28946da7
JB		 11236 {
11237 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11238 .doit = nl80211_register_unexpected_frame,
11239 .policy = nl80211_policy,
11240 .flags = GENL_ADMIN_PERM,
11241 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11242 NL80211_FLAG_NEED_RTNL,
11243 },
7f6cf311
JB		 11244 {
11245 .cmd = NL80211_CMD_PROBE_CLIENT,
11246 .doit = nl80211_probe_client,
11247 .policy = nl80211_policy,
11248 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11249 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11250 NL80211_FLAG_NEED_RTNL,
11251 },
5e760230
JB		 11252 {
11253 .cmd = NL80211_CMD_REGISTER_BEACONS,
11254 .doit = nl80211_register_beacons,
11255 .policy = nl80211_policy,
11256 .flags = GENL_ADMIN_PERM,
11257 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11258 NL80211_FLAG_NEED_RTNL,
11259 },
1d9d9213
SW		 11260 {
11261 .cmd = NL80211_CMD_SET_NOACK_MAP,
11262 .doit = nl80211_set_noack_map,
11263 .policy = nl80211_policy,
11264 .flags = GENL_ADMIN_PERM,
11265 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11266 NL80211_FLAG_NEED_RTNL,
11267 },
98104fde
JB		 11268 {
11269 .cmd = NL80211_CMD_START_P2P_DEVICE,
11270 .doit = nl80211_start_p2p_device,
11271 .policy = nl80211_policy,
11272 .flags = GENL_ADMIN_PERM,
11273 .internal_flags = NL80211_FLAG_NEED_WDEV |
11274 NL80211_FLAG_NEED_RTNL,
11275 },
11276 {
11277 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11278 .doit = nl80211_stop_p2p_device,
11279 .policy = nl80211_policy,
11280 .flags = GENL_ADMIN_PERM,
11281 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11282 NL80211_FLAG_NEED_RTNL,
11283 },
f4e583c8
AQ		 11284 {
11285 .cmd = NL80211_CMD_SET_MCAST_RATE,
11286 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 11287 .policy = nl80211_policy,
11288 .flags = GENL_ADMIN_PERM,
11289 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11290 NL80211_FLAG_NEED_RTNL,
11291 },
11292 {
11293 .cmd = NL80211_CMD_SET_MAC_ACL,
11294 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 11295 .policy = nl80211_policy,
11296 .flags = GENL_ADMIN_PERM,
11297 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11298 NL80211_FLAG_NEED_RTNL,
11299 },
04f39047
SW		 11300 {
11301 .cmd = NL80211_CMD_RADAR_DETECT,
11302 .doit = nl80211_start_radar_detection,
11303 .policy = nl80211_policy,
11304 .flags = GENL_ADMIN_PERM,
11305 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11306 NL80211_FLAG_NEED_RTNL,
11307 },
3713b4e3
JB		 11308 {
11309 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11310 .doit = nl80211_get_protocol_features,
11311 .policy = nl80211_policy,
11312 },
355199e0
JM		 11313 {
11314 .cmd = NL80211_CMD_UPDATE_FT_IES,
11315 .doit = nl80211_update_ft_ies,
11316 .policy = nl80211_policy,
11317 .flags = GENL_ADMIN_PERM,
11318 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11319 NL80211_FLAG_NEED_RTNL,
11320 },
5de17984
AS		 11321 {
11322 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11323 .doit = nl80211_crit_protocol_start,
11324 .policy = nl80211_policy,
11325 .flags = GENL_ADMIN_PERM,
11326 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11327 NL80211_FLAG_NEED_RTNL,
11328 },
11329 {
11330 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11331 .doit = nl80211_crit_protocol_stop,
11332 .policy = nl80211_policy,
11333 .flags = GENL_ADMIN_PERM,
11334 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11335 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11336 },
11337 {
11338 .cmd = NL80211_CMD_GET_COALESCE,
11339 .doit = nl80211_get_coalesce,
11340 .policy = nl80211_policy,
11341 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11342 NL80211_FLAG_NEED_RTNL,
11343 },
11344 {
11345 .cmd = NL80211_CMD_SET_COALESCE,
11346 .doit = nl80211_set_coalesce,
11347 .policy = nl80211_policy,
11348 .flags = GENL_ADMIN_PERM,
11349 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11350 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11351 },
11352 {
11353 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11354 .doit = nl80211_channel_switch,
11355 .policy = nl80211_policy,
11356 .flags = GENL_ADMIN_PERM,
11357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11358 NL80211_FLAG_NEED_RTNL,
11359 },
ad7e718c
JB		 11360 {
11361 .cmd = NL80211_CMD_VENDOR,
11362 .doit = nl80211_vendor_cmd,
7bdbe400 11363 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c
JB		 11364 .policy = nl80211_policy,
11365 .flags = GENL_ADMIN_PERM,
11366 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11367 NL80211_FLAG_NEED_RTNL,
11368 },
fa9ffc74
KP		 11369 {
11370 .cmd = NL80211_CMD_SET_QOS_MAP,
11371 .doit = nl80211_set_qos_map,
11372 .policy = nl80211_policy,
11373 .flags = GENL_ADMIN_PERM,
11374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11375 NL80211_FLAG_NEED_RTNL,
11376 },
960d01ac
JB		 11377 {
11378 .cmd = NL80211_CMD_ADD_TX_TS,
11379 .doit = nl80211_add_tx_ts,
11380 .policy = nl80211_policy,
11381 .flags = GENL_ADMIN_PERM,
11382 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11383 NL80211_FLAG_NEED_RTNL,
11384 },
11385 {
11386 .cmd = NL80211_CMD_DEL_TX_TS,
11387 .doit = nl80211_del_tx_ts,
11388 .policy = nl80211_policy,
11389 .flags = GENL_ADMIN_PERM,
11390 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11391 NL80211_FLAG_NEED_RTNL,
11392 },
1057d35e
AN		 11393 {
11394 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11395 .doit = nl80211_tdls_channel_switch,
11396 .policy = nl80211_policy,
11397 .flags = GENL_ADMIN_PERM,
11398 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11399 NL80211_FLAG_NEED_RTNL,
11400 },
11401 {
11402 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11403 .doit = nl80211_tdls_cancel_channel_switch,
11404 .policy = nl80211_policy,
11405 .flags = GENL_ADMIN_PERM,
11406 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11407 NL80211_FLAG_NEED_RTNL,
11408 },
55682965 11409};
9588bbd5 11410
55682965
JB		 11411/* notification functions */
11412
3bb20556
JB		 11413void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11414 enum nl80211_commands cmd)
55682965
JB		 11415{
11416 struct sk_buff *msg;
86e8cf98 11417 struct nl80211_dump_wiphy_state state = {};
55682965 11418
3bb20556
JB		 11419 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11420 cmd != NL80211_CMD_DEL_WIPHY);
11421
fd2120ca 11422 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11423 if (!msg)
11424 return;
11425
3bb20556 11426 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11427 nlmsg_free(msg);
11428 return;
11429 }
11430
68eb5503 11431 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11432 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11433}
11434
362a415d
JB		 11435static int nl80211_add_scan_req(struct sk_buff *msg,
11436 struct cfg80211_registered_device *rdev)
11437{
11438 struct cfg80211_scan_request *req = rdev->scan_req;
11439 struct nlattr *nest;
11440 int i;
11441
11442 if (WARN_ON(!req))
11443 return 0;
11444
11445 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11446 if (!nest)
11447 goto nla_put_failure;
9360ffd1
DM		 11448 for (i = 0; i < req->n_ssids; i++) {
11449 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11450 goto nla_put_failure;
11451 }
362a415d
JB		 11452 nla_nest_end(msg, nest);
11453
11454 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11455 if (!nest)
11456 goto nla_put_failure;
9360ffd1
DM		 11457 for (i = 0; i < req->n_channels; i++) {
11458 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11459 goto nla_put_failure;
11460 }
362a415d
JB		 11461 nla_nest_end(msg, nest);
11462
9360ffd1
DM		 11463 if (req->ie &&
11464 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11465 goto nla_put_failure;
362a415d 11466
ae917c9f
JB		 11467 if (req->flags &&
11468 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11469 goto nla_put_failure;
ed473771 11470
362a415d
JB		 11471 return 0;
11472 nla_put_failure:
11473 return -ENOBUFS;
11474}
11475
a538e2d5
JB		 11476static int nl80211_send_scan_msg(struct sk_buff *msg,
11477 struct cfg80211_registered_device *rdev,
fd014284 11478 struct wireless_dev *wdev,
15e47304 11479 u32 portid, u32 seq, int flags,
a538e2d5 11480 u32 cmd)
2a519311
JB		 11481{
11482 void *hdr;
11483
15e47304 11484 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11485 if (!hdr)
11486 return -1;
11487
9360ffd1 11488 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11489 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11490 wdev->netdev->ifindex)) ||
11491 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11492 goto nla_put_failure;
2a519311 11493
362a415d
JB		 11494 /* ignore errors and send incomplete event anyway */
11495 nl80211_add_scan_req(msg, rdev);
2a519311 11496
053c095a
JB		 11497 genlmsg_end(msg, hdr);
11498 return 0;
2a519311
JB		 11499
11500 nla_put_failure:
11501 genlmsg_cancel(msg, hdr);
11502 return -EMSGSIZE;
11503}
11504
807f8a8c
LC		 11505static int
11506nl80211_send_sched_scan_msg(struct sk_buff *msg,
11507 struct cfg80211_registered_device *rdev,
11508 struct net_device *netdev,
15e47304 11509 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11510{
11511 void *hdr;
11512
15e47304 11513 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11514 if (!hdr)
11515 return -1;
11516
9360ffd1
DM		 11517 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11518 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11519 goto nla_put_failure;
807f8a8c 11520
053c095a
JB		 11521 genlmsg_end(msg, hdr);
11522 return 0;
807f8a8c
LC		 11523
11524 nla_put_failure:
11525 genlmsg_cancel(msg, hdr);
11526 return -EMSGSIZE;
11527}
11528
a538e2d5 11529void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11530 struct wireless_dev *wdev)
a538e2d5
JB		 11531{
11532 struct sk_buff *msg;
11533
58050fce 11534 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11535 if (!msg)
11536 return;
11537
fd014284 11538 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11539 NL80211_CMD_TRIGGER_SCAN) < 0) {
11540 nlmsg_free(msg);
11541 return;
11542 }
11543
68eb5503 11544 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11545 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11546}
11547
f9d15d16
JB		 11548struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11549 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11550{
11551 struct sk_buff *msg;
11552
fd2120ca 11553 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11554 if (!msg)
f9d15d16 11555 return NULL;
2a519311 11556
fd014284 11557 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11558 aborted ? NL80211_CMD_SCAN_ABORTED :
11559 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11560 nlmsg_free(msg);
f9d15d16 11561 return NULL;
2a519311
JB		 11562 }
11563
f9d15d16 11564 return msg;
2a519311
JB		 11565}
11566
f9d15d16
JB		 11567void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11568 struct sk_buff *msg)
2a519311 11569{
2a519311
JB		 11570 if (!msg)
11571 return;
11572
68eb5503 11573 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11574 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11575}
11576
807f8a8c
LC		 11577void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11578 struct net_device *netdev)
11579{
11580 struct sk_buff *msg;
11581
11582 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11583 if (!msg)
11584 return;
11585
11586 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11587 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11588 nlmsg_free(msg);
11589 return;
11590 }
11591
68eb5503 11592 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11593 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11594}
11595
11596void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11597 struct net_device *netdev, u32 cmd)
11598{
11599 struct sk_buff *msg;
11600
58050fce 11601 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11602 if (!msg)
11603 return;
11604
11605 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11606 nlmsg_free(msg);
11607 return;
11608 }
11609
68eb5503 11610 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11611 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11612}
11613
b0d7aa59
JD		 11614static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11615 struct regulatory_request *request)
73d54c9e 11616{
73d54c9e 11617 /* Userspace can always count this one always being set */
9360ffd1
DM		 11618 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11619 goto nla_put_failure;
11620
11621 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11622 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11623 NL80211_REGDOM_TYPE_WORLD))
11624 goto nla_put_failure;
11625 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11626 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11627 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11628 goto nla_put_failure;
11629 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11630 request->intersect) {
11631 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11632 NL80211_REGDOM_TYPE_INTERSECTION))
11633 goto nla_put_failure;
11634 } else {
11635 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11636 NL80211_REGDOM_TYPE_COUNTRY) ||
11637 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11638 request->alpha2))
11639 goto nla_put_failure;
11640 }
11641
ad30ca2c
AN		 11642 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11643 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11644
11645 if (wiphy &&
11646 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11647 goto nla_put_failure;
1bdd716c
AN		 11648
11649 if (wiphy &&
11650 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11651 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11652 goto nla_put_failure;
ad30ca2c 11653 }
73d54c9e 11654
b0d7aa59
JD		 11655 return true;
11656
11657nla_put_failure:
11658 return false;
11659}
11660
11661/*
11662 * This can happen on global regulatory changes or device specific settings
11663 * based on custom regulatory domains.
11664 */
11665void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11666 struct regulatory_request *request)
11667{
11668 struct sk_buff *msg;
11669 void *hdr;
11670
11671 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11672 if (!msg)
11673 return;
11674
11675 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11676 if (!hdr) {
11677 nlmsg_free(msg);
11678 return;
11679 }
11680
11681 if (nl80211_reg_change_event_fill(msg, request) == false)
11682 goto nla_put_failure;
11683
3b7b72ee 11684 genlmsg_end(msg, hdr);
73d54c9e 11685
bc43b28c 11686 rcu_read_lock();
68eb5503 11687 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11688 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11689 rcu_read_unlock();
73d54c9e
LR		 11690
11691 return;
11692
11693nla_put_failure:
11694 genlmsg_cancel(msg, hdr);
11695 nlmsg_free(msg);
11696}
11697
6039f6d2
JM		 11698static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11699 struct net_device *netdev,
11700 const u8 *buf, size_t len,
b0b6aa2c
EP		 11701 enum nl80211_commands cmd, gfp_t gfp,
11702 int uapsd_queues)
6039f6d2
JM		 11703{
11704 struct sk_buff *msg;
11705 void *hdr;
11706
e6d6e342 11707 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11708 if (!msg)
11709 return;
11710
11711 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11712 if (!hdr) {
11713 nlmsg_free(msg);
11714 return;
11715 }
11716
9360ffd1
DM		 11717 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11718 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11719 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11720 goto nla_put_failure;
6039f6d2 11721
b0b6aa2c
EP		 11722 if (uapsd_queues >= 0) {
11723 struct nlattr *nla_wmm =
11724 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11725 if (!nla_wmm)
11726 goto nla_put_failure;
11727
11728 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11729 uapsd_queues))
11730 goto nla_put_failure;
11731
11732 nla_nest_end(msg, nla_wmm);
11733 }
11734
3b7b72ee 11735 genlmsg_end(msg, hdr);
6039f6d2 11736
68eb5503 11737 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11738 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11739 return;
11740
11741 nla_put_failure:
11742 genlmsg_cancel(msg, hdr);
11743 nlmsg_free(msg);
11744}
11745
11746void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11747 struct net_device *netdev, const u8 *buf,
11748 size_t len, gfp_t gfp)
6039f6d2
JM		 11749{
11750 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11751 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11752}
11753
11754void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11755 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11756 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11757{
e6d6e342 11758 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11759 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11760}
11761
53b46b84 11762void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11763 struct net_device *netdev, const u8 *buf,
11764 size_t len, gfp_t gfp)
6039f6d2
JM		 11765{
11766 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11767 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11768}
11769
53b46b84
JM		 11770void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11771 struct net_device *netdev, const u8 *buf,
e6d6e342 11772 size_t len, gfp_t gfp)
6039f6d2
JM		 11773{
11774 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11775 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11776}
11777
6ff57cf8
JB		 11778void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11779 size_t len)
cf4e594e 11780{
947add36
JB		 11781 struct wireless_dev *wdev = dev->ieee80211_ptr;
11782 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11783 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11784 const struct ieee80211_mgmt *mgmt = (void *)buf;
11785 u32 cmd;
947add36 11786
6ff57cf8
JB		 11787 if (WARN_ON(len < 2))
11788 return;
cf4e594e 11789
6ff57cf8
JB		 11790 if (ieee80211_is_deauth(mgmt->frame_control))
11791 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11792 else
11793 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11794
6ff57cf8 11795 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11796 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11797}
6ff57cf8 11798EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11799
1b06bb40
LR		 11800static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11801 struct net_device *netdev, int cmd,
e6d6e342 11802 const u8 *addr, gfp_t gfp)
1965c853
JM		 11803{
11804 struct sk_buff *msg;
11805 void *hdr;
11806
e6d6e342 11807 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11808 if (!msg)
11809 return;
11810
11811 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11812 if (!hdr) {
11813 nlmsg_free(msg);
11814 return;
11815 }
11816
9360ffd1
DM		 11817 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11818 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11819 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11820 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11821 goto nla_put_failure;
1965c853 11822
3b7b72ee 11823 genlmsg_end(msg, hdr);
1965c853 11824
68eb5503 11825 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11826 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11827 return;
11828
11829 nla_put_failure:
11830 genlmsg_cancel(msg, hdr);
11831 nlmsg_free(msg);
11832}
11833
11834void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11835 struct net_device *netdev, const u8 *addr,
11836 gfp_t gfp)
1965c853
JM		 11837{
11838 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11839 addr, gfp);
1965c853
JM		 11840}
11841
11842void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11843 struct net_device *netdev, const u8 *addr,
11844 gfp_t gfp)
1965c853 11845{
e6d6e342
JB		 11846 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11847 addr, gfp);
1965c853
JM		 11848}
11849
b23aa676
SO		 11850void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11851 struct net_device *netdev, const u8 *bssid,
11852 const u8 *req_ie, size_t req_ie_len,
11853 const u8 *resp_ie, size_t resp_ie_len,
11854 u16 status, gfp_t gfp)
11855{
11856 struct sk_buff *msg;
11857 void *hdr;
11858
58050fce 11859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11860 if (!msg)
11861 return;
11862
11863 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11864 if (!hdr) {
11865 nlmsg_free(msg);
11866 return;
11867 }
11868
9360ffd1
DM		 11869 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11870 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11871 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11872 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11873 (req_ie &&
11874 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11875 (resp_ie &&
11876 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11877 goto nla_put_failure;
b23aa676 11878
3b7b72ee 11879 genlmsg_end(msg, hdr);
b23aa676 11880
68eb5503 11881 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11882 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11883 return;
11884
11885 nla_put_failure:
11886 genlmsg_cancel(msg, hdr);
11887 nlmsg_free(msg);
11888
11889}
11890
11891void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11892 struct net_device *netdev, const u8 *bssid,
11893 const u8 *req_ie, size_t req_ie_len,
11894 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11895{
11896 struct sk_buff *msg;
11897 void *hdr;
11898
58050fce 11899 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11900 if (!msg)
11901 return;
11902
11903 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11904 if (!hdr) {
11905 nlmsg_free(msg);
11906 return;
11907 }
11908
9360ffd1
DM		 11909 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11910 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11911 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11912 (req_ie &&
11913 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11914 (resp_ie &&
11915 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11916 goto nla_put_failure;
b23aa676 11917
3b7b72ee 11918 genlmsg_end(msg, hdr);
b23aa676 11919
68eb5503 11920 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11921 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11922 return;
11923
11924 nla_put_failure:
11925 genlmsg_cancel(msg, hdr);
11926 nlmsg_free(msg);
11927
11928}
11929
11930void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11931 struct net_device *netdev, u16 reason,
667503dd 11932 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11933{
11934 struct sk_buff *msg;
11935 void *hdr;
11936
58050fce 11937 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11938 if (!msg)
11939 return;
11940
11941 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11942 if (!hdr) {
11943 nlmsg_free(msg);
11944 return;
11945 }
11946
9360ffd1
DM		 11947 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11948 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11949 (from_ap && reason &&
11950 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11951 (from_ap &&
11952 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11953 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11954 goto nla_put_failure;
b23aa676 11955
3b7b72ee 11956 genlmsg_end(msg, hdr);
b23aa676 11957
68eb5503 11958 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11959 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11960 return;
11961
11962 nla_put_failure:
11963 genlmsg_cancel(msg, hdr);
11964 nlmsg_free(msg);
11965
11966}
11967
04a773ad
JB		 11968void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11969 struct net_device *netdev, const u8 *bssid,
11970 gfp_t gfp)
11971{
11972 struct sk_buff *msg;
11973 void *hdr;
11974
fd2120ca 11975 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11976 if (!msg)
11977 return;
11978
11979 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11980 if (!hdr) {
11981 nlmsg_free(msg);
11982 return;
11983 }
11984
9360ffd1
DM		 11985 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11986 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11987 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11988 goto nla_put_failure;
04a773ad 11989
3b7b72ee 11990 genlmsg_end(msg, hdr);
04a773ad 11991
68eb5503 11992 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11993 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11994 return;
11995
11996 nla_put_failure:
11997 genlmsg_cancel(msg, hdr);
11998 nlmsg_free(msg);
11999}
12000
947add36
JB		 12001void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12002 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12003{
947add36 12004 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12005 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12006 struct sk_buff *msg;
12007 void *hdr;
12008
947add36
JB		 12009 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12010 return;
12011
12012 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12013
c93b5e71
JC		 12014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12015 if (!msg)
12016 return;
12017
12018 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12019 if (!hdr) {
12020 nlmsg_free(msg);
12021 return;
12022 }
12023
9360ffd1 12024 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12025 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12026 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12027 (ie_len && ie &&
12028 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12029 goto nla_put_failure;
c93b5e71 12030
3b7b72ee 12031 genlmsg_end(msg, hdr);
c93b5e71 12032
68eb5503 12033 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12034 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12035 return;
12036
12037 nla_put_failure:
12038 genlmsg_cancel(msg, hdr);
12039 nlmsg_free(msg);
12040}
947add36 12041EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12042
a3b8b056
JM		 12043void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12044 struct net_device *netdev, const u8 *addr,
12045 enum nl80211_key_type key_type, int key_id,
e6d6e342 12046 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12047{
12048 struct sk_buff *msg;
12049 void *hdr;
12050
e6d6e342 12051 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12052 if (!msg)
12053 return;
12054
12055 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12056 if (!hdr) {
12057 nlmsg_free(msg);
12058 return;
12059 }
12060
9360ffd1
DM		 12061 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12062 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12063 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12064 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12065 (key_id != -1 &&
12066 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12067 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12068 goto nla_put_failure;
a3b8b056 12069
3b7b72ee 12070 genlmsg_end(msg, hdr);
a3b8b056 12071
68eb5503 12072 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12073 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12074 return;
12075
12076 nla_put_failure:
12077 genlmsg_cancel(msg, hdr);
12078 nlmsg_free(msg);
12079}
12080
6bad8766
LR		 12081void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12082 struct ieee80211_channel *channel_before,
12083 struct ieee80211_channel *channel_after)
12084{
12085 struct sk_buff *msg;
12086 void *hdr;
12087 struct nlattr *nl_freq;
12088
fd2120ca 12089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12090 if (!msg)
12091 return;
12092
12093 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12094 if (!hdr) {
12095 nlmsg_free(msg);
12096 return;
12097 }
12098
12099 /*
12100 * Since we are applying the beacon hint to a wiphy we know its
12101 * wiphy_idx is valid
12102 */
9360ffd1
DM		 12103 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12104 goto nla_put_failure;
6bad8766
LR		 12105
12106 /* Before */
12107 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12108 if (!nl_freq)
12109 goto nla_put_failure;
cdc89b97 12110 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12111 goto nla_put_failure;
12112 nla_nest_end(msg, nl_freq);
12113
12114 /* After */
12115 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12116 if (!nl_freq)
12117 goto nla_put_failure;
cdc89b97 12118 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12119 goto nla_put_failure;
12120 nla_nest_end(msg, nl_freq);
12121
3b7b72ee 12122 genlmsg_end(msg, hdr);
6bad8766 12123
463d0183 12124 rcu_read_lock();
68eb5503 12125 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12126 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12127 rcu_read_unlock();
6bad8766
LR		 12128
12129 return;
12130
12131nla_put_failure:
12132 genlmsg_cancel(msg, hdr);
12133 nlmsg_free(msg);
12134}
12135
9588bbd5
JM		 12136static void nl80211_send_remain_on_chan_event(
12137 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12138 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12139 struct ieee80211_channel *chan,
9588bbd5
JM		 12140 unsigned int duration, gfp_t gfp)
12141{
12142 struct sk_buff *msg;
12143 void *hdr;
12144
12145 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12146 if (!msg)
12147 return;
12148
12149 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12150 if (!hdr) {
12151 nlmsg_free(msg);
12152 return;
12153 }
12154
9360ffd1 12155 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12156 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12157 wdev->netdev->ifindex)) ||
00f53350 12158 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 12159 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12160 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12161 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 12162 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
12163 goto nla_put_failure;
9588bbd5 12164
9360ffd1
DM		 12165 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12166 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12167 goto nla_put_failure;
9588bbd5 12168
3b7b72ee 12169 genlmsg_end(msg, hdr);
9588bbd5 12170
68eb5503 12171 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12172 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12173 return;
12174
12175 nla_put_failure:
12176 genlmsg_cancel(msg, hdr);
12177 nlmsg_free(msg);
12178}
12179
947add36
JB		 12180void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12181 struct ieee80211_channel *chan,
12182 unsigned int duration, gfp_t gfp)
9588bbd5 12183{
947add36 12184 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12185 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12186
12187 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12188 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12189 rdev, wdev, cookie, chan,
42d97a59 12190 duration, gfp);
9588bbd5 12191}
947add36 12192EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12193
947add36
JB		 12194void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12195 struct ieee80211_channel *chan,
12196 gfp_t gfp)
9588bbd5 12197{
947add36 12198 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12199 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12200
12201 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12202 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12203 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12204}
947add36 12205EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12206
947add36
JB		 12207void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12208 struct station_info *sinfo, gfp_t gfp)
98b62183 12209{
947add36 12210 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12211 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12212 struct sk_buff *msg;
12213
947add36
JB		 12214 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12215
58050fce 12216 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12217 if (!msg)
12218 return;
12219
cf5ead82 12220 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12221 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12222 nlmsg_free(msg);
12223 return;
12224 }
12225
68eb5503 12226 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12227 NL80211_MCGRP_MLME, gfp);
98b62183 12228}
947add36 12229EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12230
cf5ead82
JB		 12231void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12232 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12233{
947add36 12234 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12235 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12236 struct sk_buff *msg;
cf5ead82
JB		 12237 struct station_info empty_sinfo = {};
12238
12239 if (!sinfo)
12240 sinfo = &empty_sinfo;
ec15e68b 12241
947add36
JB		 12242 trace_cfg80211_del_sta(dev, mac_addr);
12243
58050fce 12244 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12245 if (!msg)
12246 return;
12247
cf5ead82 12248 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12249 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12250 nlmsg_free(msg);
12251 return;
12252 }
12253
68eb5503 12254 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12255 NL80211_MCGRP_MLME, gfp);
ec15e68b 12256}
cf5ead82 12257EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12258
947add36
JB		 12259void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12260 enum nl80211_connect_failed_reason reason,
12261 gfp_t gfp)
ed44a951 12262{
947add36 12263 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12264 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12265 struct sk_buff *msg;
12266 void *hdr;
12267
12268 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12269 if (!msg)
12270 return;
12271
12272 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12273 if (!hdr) {
12274 nlmsg_free(msg);
12275 return;
12276 }
12277
12278 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12279 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12280 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12281 goto nla_put_failure;
12282
12283 genlmsg_end(msg, hdr);
12284
68eb5503 12285 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12286 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12287 return;
12288
12289 nla_put_failure:
12290 genlmsg_cancel(msg, hdr);
12291 nlmsg_free(msg);
12292}
947add36 12293EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12294
b92ab5d8
JB		 12295static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12296 const u8 *addr, gfp_t gfp)
28946da7
JB		 12297{
12298 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12299 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12300 struct sk_buff *msg;
12301 void *hdr;
15e47304 12302 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12303
15e47304 12304 if (!nlportid)
28946da7
JB		 12305 return false;
12306
12307 msg = nlmsg_new(100, gfp);
12308 if (!msg)
12309 return true;
12310
b92ab5d8 12311 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12312 if (!hdr) {
12313 nlmsg_free(msg);
12314 return true;
12315 }
12316
9360ffd1
DM		 12317 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12318 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12319 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12320 goto nla_put_failure;
28946da7 12321
9c90a9f6 12322 genlmsg_end(msg, hdr);
15e47304 12323 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12324 return true;
12325
12326 nla_put_failure:
12327 genlmsg_cancel(msg, hdr);
12328 nlmsg_free(msg);
12329 return true;
12330}
12331
947add36
JB		 12332bool cfg80211_rx_spurious_frame(struct net_device *dev,
12333 const u8 *addr, gfp_t gfp)
b92ab5d8 12334{
947add36
JB		 12335 struct wireless_dev *wdev = dev->ieee80211_ptr;
12336 bool ret;
12337
12338 trace_cfg80211_rx_spurious_frame(dev, addr);
12339
12340 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12341 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12342 trace_cfg80211_return_bool(false);
12343 return false;
12344 }
12345 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12346 addr, gfp);
12347 trace_cfg80211_return_bool(ret);
12348 return ret;
b92ab5d8 12349}
947add36 12350EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12351
947add36
JB		 12352bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12353 const u8 *addr, gfp_t gfp)
b92ab5d8 12354{
947add36
JB		 12355 struct wireless_dev *wdev = dev->ieee80211_ptr;
12356 bool ret;
12357
12358 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12359
12360 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12361 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12362 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12363 trace_cfg80211_return_bool(false);
12364 return false;
12365 }
12366 ret = __nl80211_unexpected_frame(dev,
12367 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12368 addr, gfp);
12369 trace_cfg80211_return_bool(ret);
12370 return ret;
b92ab5d8 12371}
947add36 12372EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12373
2e161f78 12374int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12375 struct wireless_dev *wdev, u32 nlportid,
804483e9 12376 int freq, int sig_dbm,
19504cf5 12377 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12378{
71bbc994 12379 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12380 struct sk_buff *msg;
12381 void *hdr;
026331c4
JM		 12382
12383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12384 if (!msg)
12385 return -ENOMEM;
12386
2e161f78 12387 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12388 if (!hdr) {
12389 nlmsg_free(msg);
12390 return -ENOMEM;
12391 }
12392
9360ffd1 12393 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12394 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12395 netdev->ifindex)) ||
a838490b 12396 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12397 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12398 (sig_dbm &&
12399 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12400 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12401 (flags &&
12402 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12403 goto nla_put_failure;
026331c4 12404
3b7b72ee 12405 genlmsg_end(msg, hdr);
026331c4 12406
15e47304 12407 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12408
12409 nla_put_failure:
12410 genlmsg_cancel(msg, hdr);
12411 nlmsg_free(msg);
12412 return -ENOBUFS;
12413}
12414
947add36
JB		 12415void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12416 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12417{
947add36 12418 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12419 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12420 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12421 struct sk_buff *msg;
12422 void *hdr;
12423
947add36
JB		 12424 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12425
026331c4
JM		 12426 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12427 if (!msg)
12428 return;
12429
2e161f78 12430 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12431 if (!hdr) {
12432 nlmsg_free(msg);
12433 return;
12434 }
12435
9360ffd1 12436 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12437 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12438 netdev->ifindex)) ||
a838490b 12439 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12440 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12441 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12442 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12443 goto nla_put_failure;
026331c4 12444
3b7b72ee 12445 genlmsg_end(msg, hdr);
026331c4 12446
68eb5503 12447 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12448 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12449 return;
12450
12451 nla_put_failure:
12452 genlmsg_cancel(msg, hdr);
12453 nlmsg_free(msg);
12454}
947add36 12455EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12456
5b97f49d
JB		 12457static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12458 const char *mac, gfp_t gfp)
d6dc1a38 12459{
947add36 12460 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12461 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12462 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12463 void **cb;
947add36 12464
d6dc1a38 12465 if (!msg)
5b97f49d 12466 return NULL;
d6dc1a38 12467
5b97f49d
JB		 12468 cb = (void **)msg->cb;
12469
12470 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12471 if (!cb[0]) {
d6dc1a38 12472 nlmsg_free(msg);
5b97f49d 12473 return NULL;
d6dc1a38
JO		 12474 }
12475
9360ffd1 12476 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12477 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12478 goto nla_put_failure;
d6dc1a38 12479
5b97f49d 12480 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12481 goto nla_put_failure;
12482
5b97f49d
JB		 12483 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12484 if (!cb[1])
9360ffd1 12485 goto nla_put_failure;
d6dc1a38 12486
5b97f49d 12487 cb[2] = rdev;
d6dc1a38 12488
5b97f49d
JB		 12489 return msg;
12490 nla_put_failure:
12491 nlmsg_free(msg);
12492 return NULL;
12493}
12494
12495static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12496{
12497 void **cb = (void **)msg->cb;
12498 struct cfg80211_registered_device *rdev = cb[2];
12499
12500 nla_nest_end(msg, cb[1]);
12501 genlmsg_end(msg, cb[0]);
12502
12503 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12504
68eb5503 12505 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12506 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12507}
12508
12509void cfg80211_cqm_rssi_notify(struct net_device *dev,
12510 enum nl80211_cqm_rssi_threshold_event rssi_event,
12511 gfp_t gfp)
12512{
12513 struct sk_buff *msg;
12514
12515 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12516
98f03342
JB		 12517 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12518 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12519 return;
12520
5b97f49d
JB		 12521 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12522 if (!msg)
12523 return;
12524
12525 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12526 rssi_event))
12527 goto nla_put_failure;
12528
12529 cfg80211_send_cqm(msg, gfp);
12530
d6dc1a38
JO		 12531 return;
12532
12533 nla_put_failure:
d6dc1a38
JO		 12534 nlmsg_free(msg);
12535}
947add36 12536EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12537
5b97f49d
JB		 12538void cfg80211_cqm_txe_notify(struct net_device *dev,
12539 const u8 *peer, u32 num_packets,
12540 u32 rate, u32 intvl, gfp_t gfp)
12541{
12542 struct sk_buff *msg;
12543
12544 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12545 if (!msg)
12546 return;
12547
12548 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12549 goto nla_put_failure;
12550
12551 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12552 goto nla_put_failure;
12553
12554 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12555 goto nla_put_failure;
12556
12557 cfg80211_send_cqm(msg, gfp);
12558 return;
12559
12560 nla_put_failure:
12561 nlmsg_free(msg);
12562}
12563EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12564
12565void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12566 const u8 *peer, u32 num_packets, gfp_t gfp)
12567{
12568 struct sk_buff *msg;
12569
12570 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12571
12572 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12573 if (!msg)
12574 return;
12575
12576 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12577 goto nla_put_failure;
12578
12579 cfg80211_send_cqm(msg, gfp);
12580 return;
12581
12582 nla_put_failure:
12583 nlmsg_free(msg);
12584}
12585EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12586
98f03342
JB		 12587void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12588{
12589 struct sk_buff *msg;
12590
12591 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12592 if (!msg)
12593 return;
12594
12595 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12596 goto nla_put_failure;
12597
12598 cfg80211_send_cqm(msg, gfp);
12599 return;
12600
12601 nla_put_failure:
12602 nlmsg_free(msg);
12603}
12604EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12605
947add36
JB		 12606static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12607 struct net_device *netdev, const u8 *bssid,
12608 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12609{
12610 struct sk_buff *msg;
12611 struct nlattr *rekey_attr;
12612 void *hdr;
12613
58050fce 12614 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12615 if (!msg)
12616 return;
12617
12618 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12619 if (!hdr) {
12620 nlmsg_free(msg);
12621 return;
12622 }
12623
9360ffd1
DM		 12624 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12625 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12626 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12627 goto nla_put_failure;
e5497d76
JB		 12628
12629 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12630 if (!rekey_attr)
12631 goto nla_put_failure;
12632
9360ffd1
DM		 12633 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12634 NL80211_REPLAY_CTR_LEN, replay_ctr))
12635 goto nla_put_failure;
e5497d76
JB		 12636
12637 nla_nest_end(msg, rekey_attr);
12638
3b7b72ee 12639 genlmsg_end(msg, hdr);
e5497d76 12640
68eb5503 12641 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12642 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12643 return;
12644
12645 nla_put_failure:
12646 genlmsg_cancel(msg, hdr);
12647 nlmsg_free(msg);
12648}
12649
947add36
JB		 12650void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12651 const u8 *replay_ctr, gfp_t gfp)
12652{
12653 struct wireless_dev *wdev = dev->ieee80211_ptr;
12654 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12655 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12656
12657 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12658 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12659}
12660EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12661
12662static void
12663nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12664 struct net_device *netdev, int index,
12665 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12666{
12667 struct sk_buff *msg;
12668 struct nlattr *attr;
12669 void *hdr;
12670
58050fce 12671 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12672 if (!msg)
12673 return;
12674
12675 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12676 if (!hdr) {
12677 nlmsg_free(msg);
12678 return;
12679 }
12680
9360ffd1
DM		 12681 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12682 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12683 goto nla_put_failure;
c9df56b4
JM		 12684
12685 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12686 if (!attr)
12687 goto nla_put_failure;
12688
9360ffd1
DM		 12689 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12690 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12691 (preauth &&
12692 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12693 goto nla_put_failure;
c9df56b4
JM		 12694
12695 nla_nest_end(msg, attr);
12696
3b7b72ee 12697 genlmsg_end(msg, hdr);
c9df56b4 12698
68eb5503 12699 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12700 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12701 return;
12702
12703 nla_put_failure:
12704 genlmsg_cancel(msg, hdr);
12705 nlmsg_free(msg);
12706}
12707
947add36
JB		 12708void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12709 const u8 *bssid, bool preauth, gfp_t gfp)
12710{
12711 struct wireless_dev *wdev = dev->ieee80211_ptr;
12712 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12713 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12714
12715 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12716 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12717}
12718EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12719
12720static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12721 struct net_device *netdev,
12722 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12723 gfp_t gfp,
12724 enum nl80211_commands notif,
12725 u8 count)
5314526b
TP		 12726{
12727 struct sk_buff *msg;
12728 void *hdr;
12729
58050fce 12730 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12731 if (!msg)
12732 return;
12733
f8d7552e 12734 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12735 if (!hdr) {
12736 nlmsg_free(msg);
12737 return;
12738 }
12739
683b6d3b
JB		 12740 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12741 goto nla_put_failure;
12742
12743 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12744 goto nla_put_failure;
5314526b 12745
f8d7552e
LC		 12746 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12747 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12748 goto nla_put_failure;
12749
5314526b
TP		 12750 genlmsg_end(msg, hdr);
12751
68eb5503 12752 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12753 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12754 return;
12755
12756 nla_put_failure:
12757 genlmsg_cancel(msg, hdr);
12758 nlmsg_free(msg);
12759}
12760
947add36
JB		 12761void cfg80211_ch_switch_notify(struct net_device *dev,
12762 struct cfg80211_chan_def *chandef)
84f10708 12763{
947add36
JB		 12764 struct wireless_dev *wdev = dev->ieee80211_ptr;
12765 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12766 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12767
e487eaeb 12768 ASSERT_WDEV_LOCK(wdev);
947add36 12769
e487eaeb 12770 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12771
9e0e2961 12772 wdev->chandef = *chandef;
96f55f12 12773 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12774 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12775 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12776}
12777EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12778
f8d7552e
LC		 12779void cfg80211_ch_switch_started_notify(struct net_device *dev,
12780 struct cfg80211_chan_def *chandef,
12781 u8 count)
12782{
12783 struct wireless_dev *wdev = dev->ieee80211_ptr;
12784 struct wiphy *wiphy = wdev->wiphy;
12785 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12786
12787 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12788
12789 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12790 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12791}
12792EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12793
04f39047
SW		 12794void
12795nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12796 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12797 enum nl80211_radar_event event,
12798 struct net_device *netdev, gfp_t gfp)
12799{
12800 struct sk_buff *msg;
12801 void *hdr;
12802
12803 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12804 if (!msg)
12805 return;
12806
12807 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12808 if (!hdr) {
12809 nlmsg_free(msg);
12810 return;
12811 }
12812
12813 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12814 goto nla_put_failure;
12815
12816 /* NOP and radar events don't need a netdev parameter */
12817 if (netdev) {
12818 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12819
12820 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12821 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12822 goto nla_put_failure;
12823 }
12824
12825 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12826 goto nla_put_failure;
12827
12828 if (nl80211_send_chandef(msg, chandef))
12829 goto nla_put_failure;
12830
9c90a9f6 12831 genlmsg_end(msg, hdr);
04f39047 12832
68eb5503 12833 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12834 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12835 return;
12836
12837 nla_put_failure:
12838 genlmsg_cancel(msg, hdr);
12839 nlmsg_free(msg);
12840}
12841
7f6cf311
JB		 12842void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12843 u64 cookie, bool acked, gfp_t gfp)
12844{
12845 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12846 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12847 struct sk_buff *msg;
12848 void *hdr;
7f6cf311 12849
4ee3e063
BL		 12850 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12851
58050fce 12852 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12853
7f6cf311
JB		 12854 if (!msg)
12855 return;
12856
12857 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12858 if (!hdr) {
12859 nlmsg_free(msg);
12860 return;
12861 }
12862
9360ffd1
DM		 12863 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12864 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12865 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12866 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12867 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12868 goto nla_put_failure;
7f6cf311 12869
9c90a9f6 12870 genlmsg_end(msg, hdr);
7f6cf311 12871
68eb5503 12872 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12873 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12874 return;
12875
12876 nla_put_failure:
12877 genlmsg_cancel(msg, hdr);
12878 nlmsg_free(msg);
12879}
12880EXPORT_SYMBOL(cfg80211_probe_status);
12881
5e760230
JB		 12882void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12883 const u8 *frame, size_t len,
37c73b5f 12884 int freq, int sig_dbm)
5e760230 12885{
f26cbf40 12886 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12887 struct sk_buff *msg;
12888 void *hdr;
37c73b5f 12889 struct cfg80211_beacon_registration *reg;
5e760230 12890
4ee3e063
BL		 12891 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12892
37c73b5f
BG		 12893 spin_lock_bh(&rdev->beacon_registrations_lock);
12894 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12895 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12896 if (!msg) {
12897 spin_unlock_bh(&rdev->beacon_registrations_lock);
12898 return;
12899 }
5e760230 12900
37c73b5f
BG		 12901 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12902 if (!hdr)
12903 goto nla_put_failure;
5e760230 12904
37c73b5f
BG		 12905 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12906 (freq &&
12907 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12908 (sig_dbm &&
12909 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12910 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12911 goto nla_put_failure;
5e760230 12912
37c73b5f 12913 genlmsg_end(msg, hdr);
5e760230 12914
37c73b5f
BG		 12915 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12916 }
12917 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12918 return;
12919
12920 nla_put_failure:
37c73b5f
BG		 12921 spin_unlock_bh(&rdev->beacon_registrations_lock);
12922 if (hdr)
12923 genlmsg_cancel(msg, hdr);
5e760230
JB		 12924 nlmsg_free(msg);
12925}
12926EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12927
cd8f7cb4 12928#ifdef CONFIG_PM
8cd4d456
LC		 12929static int cfg80211_net_detect_results(struct sk_buff *msg,
12930 struct cfg80211_wowlan_wakeup *wakeup)
12931{
12932 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12933 struct nlattr *nl_results, *nl_match, *nl_freqs;
12934 int i, j;
12935
12936 nl_results = nla_nest_start(
12937 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12938 if (!nl_results)
12939 return -EMSGSIZE;
12940
12941 for (i = 0; i < nd->n_matches; i++) {
12942 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12943
12944 nl_match = nla_nest_start(msg, i);
12945 if (!nl_match)
12946 break;
12947
12948 /* The SSID attribute is optional in nl80211, but for
12949 * simplicity reasons it's always present in the
12950 * cfg80211 structure. If a driver can't pass the
12951 * SSID, that needs to be changed. A zero length SSID
12952 * is still a valid SSID (wildcard), so it cannot be
12953 * used for this purpose.
12954 */
12955 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12956 match->ssid.ssid)) {
12957 nla_nest_cancel(msg, nl_match);
12958 goto out;
12959 }
12960
12961 if (match->n_channels) {
12962 nl_freqs = nla_nest_start(
12963 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12964 if (!nl_freqs) {
12965 nla_nest_cancel(msg, nl_match);
12966 goto out;
12967 }
12968
12969 for (j = 0; j < match->n_channels; j++) {
5528fae8 12970 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 12971 nla_nest_cancel(msg, nl_freqs);
12972 nla_nest_cancel(msg, nl_match);
12973 goto out;
12974 }
12975 }
12976
12977 nla_nest_end(msg, nl_freqs);
12978 }
12979
12980 nla_nest_end(msg, nl_match);
12981 }
12982
12983out:
12984 nla_nest_end(msg, nl_results);
12985 return 0;
12986}
12987
cd8f7cb4
JB		 12988void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12989 struct cfg80211_wowlan_wakeup *wakeup,
12990 gfp_t gfp)
12991{
f26cbf40 12992 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12993 struct sk_buff *msg;
12994 void *hdr;
9c90a9f6 12995 int size = 200;
cd8f7cb4
JB		 12996
12997 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12998
12999 if (wakeup)
13000 size += wakeup->packet_present_len;
13001
13002 msg = nlmsg_new(size, gfp);
13003 if (!msg)
13004 return;
13005
13006 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13007 if (!hdr)
13008 goto free_msg;
13009
13010 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13011 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13012 goto free_msg;
13013
13014 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13015 wdev->netdev->ifindex))
13016 goto free_msg;
13017
13018 if (wakeup) {
13019 struct nlattr *reasons;
13020
13021 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13022 if (!reasons)
13023 goto free_msg;
cd8f7cb4
JB		 13024
13025 if (wakeup->disconnect &&
13026 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13027 goto free_msg;
13028 if (wakeup->magic_pkt &&
13029 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13030 goto free_msg;
13031 if (wakeup->gtk_rekey_failure &&
13032 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13033 goto free_msg;
13034 if (wakeup->eap_identity_req &&
13035 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13036 goto free_msg;
13037 if (wakeup->four_way_handshake &&
13038 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13039 goto free_msg;
13040 if (wakeup->rfkill_release &&
13041 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13042 goto free_msg;
13043
13044 if (wakeup->pattern_idx >= 0 &&
13045 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13046 wakeup->pattern_idx))
13047 goto free_msg;
13048
ae917c9f
JB		 13049 if (wakeup->tcp_match &&
13050 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13051 goto free_msg;
2a0e047e 13052
ae917c9f
JB		 13053 if (wakeup->tcp_connlost &&
13054 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13055 goto free_msg;
2a0e047e 13056
ae917c9f
JB		 13057 if (wakeup->tcp_nomoretokens &&
13058 nla_put_flag(msg,
13059 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13060 goto free_msg;
2a0e047e 13061
cd8f7cb4
JB		 13062 if (wakeup->packet) {
13063 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13064 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13065
13066 if (!wakeup->packet_80211) {
13067 pkt_attr =
13068 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13069 len_attr =
13070 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13071 }
13072
13073 if (wakeup->packet_len &&
13074 nla_put_u32(msg, len_attr, wakeup->packet_len))
13075 goto free_msg;
13076
13077 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13078 wakeup->packet))
13079 goto free_msg;
13080 }
13081
8cd4d456
LC		 13082 if (wakeup->net_detect &&
13083 cfg80211_net_detect_results(msg, wakeup))
13084 goto free_msg;
13085
cd8f7cb4
JB		 13086 nla_nest_end(msg, reasons);
13087 }
13088
9c90a9f6 13089 genlmsg_end(msg, hdr);
cd8f7cb4 13090
68eb5503 13091 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13092 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13093 return;
13094
13095 free_msg:
13096 nlmsg_free(msg);
13097}
13098EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13099#endif
13100
3475b094
JM		 13101void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13102 enum nl80211_tdls_operation oper,
13103 u16 reason_code, gfp_t gfp)
13104{
13105 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13106 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13107 struct sk_buff *msg;
13108 void *hdr;
3475b094
JM		 13109
13110 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13111 reason_code);
13112
13113 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13114 if (!msg)
13115 return;
13116
13117 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13118 if (!hdr) {
13119 nlmsg_free(msg);
13120 return;
13121 }
13122
13123 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13124 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13125 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13126 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13127 (reason_code > 0 &&
13128 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13129 goto nla_put_failure;
13130
9c90a9f6 13131 genlmsg_end(msg, hdr);
3475b094 13132
68eb5503 13133 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13134 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13135 return;
13136
13137 nla_put_failure:
13138 genlmsg_cancel(msg, hdr);
13139 nlmsg_free(msg);
13140}
13141EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13142
026331c4
JM		 13143static int nl80211_netlink_notify(struct notifier_block * nb,
13144 unsigned long state,
13145 void *_notify)
13146{
13147 struct netlink_notify *notify = _notify;
13148 struct cfg80211_registered_device *rdev;
13149 struct wireless_dev *wdev;
37c73b5f 13150 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 13151
13152 if (state != NETLINK_URELEASE)
13153 return NOTIFY_DONE;
13154
13155 rcu_read_lock();
13156
5e760230 13157 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13158 bool schedule_destroy_work = false;
93a1e86c
JR		 13159 bool schedule_scan_stop = false;
13160 struct cfg80211_sched_scan_request *sched_scan_req =
13161 rcu_dereference(rdev->sched_scan_req);
13162
13163 if (sched_scan_req && notify->portid &&
13164 sched_scan_req->owner_nlportid == notify->portid)
13165 schedule_scan_stop = true;
78f22b6a
JB		 13166
13167 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 13168 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13169
78f22b6a
JB		 13170 if (wdev->owner_nlportid == notify->portid)
13171 schedule_destroy_work = true;
13172 }
13173
37c73b5f
BG		 13174 spin_lock_bh(&rdev->beacon_registrations_lock);
13175 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13176 list) {
13177 if (reg->nlportid == notify->portid) {
13178 list_del(&reg->list);
13179 kfree(reg);
13180 break;
13181 }
13182 }
13183 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13184
13185 if (schedule_destroy_work) {
13186 struct cfg80211_iface_destroy *destroy;
13187
13188 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13189 if (destroy) {
13190 destroy->nlportid = notify->portid;
13191 spin_lock(&rdev->destroy_list_lock);
13192 list_add(&destroy->list, &rdev->destroy_list);
13193 spin_unlock(&rdev->destroy_list_lock);
13194 schedule_work(&rdev->destroy_work);
13195 }
93a1e86c
JR		 13196 } else if (schedule_scan_stop) {
13197 sched_scan_req->owner_nlportid = 0;
13198
13199 if (rdev->ops->sched_scan_stop &&
13200 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13201 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13202 }
5e760230 13203 }
026331c4
JM		 13204
13205 rcu_read_unlock();
13206
05050753
I		 13207 /*
13208 * It is possible that the user space process that is controlling the
13209 * indoor setting disappeared, so notify the regulatory core.
13210 */
13211 regulatory_netlink_notify(notify->portid);
6784c7db 13212 return NOTIFY_OK;
026331c4
JM		 13213}
13214
13215static struct notifier_block nl80211_netlink_notifier = {
13216 .notifier_call = nl80211_netlink_notify,
13217};
13218
355199e0
JM		 13219void cfg80211_ft_event(struct net_device *netdev,
13220 struct cfg80211_ft_event_params *ft_event)
13221{
13222 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13223 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13224 struct sk_buff *msg;
13225 void *hdr;
355199e0
JM		 13226
13227 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13228
13229 if (!ft_event->target_ap)
13230 return;
13231
13232 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13233 if (!msg)
13234 return;
13235
13236 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13237 if (!hdr)
13238 goto out;
355199e0 13239
ae917c9f
JB		 13240 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13241 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13242 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13243 goto out;
355199e0 13244
ae917c9f
JB		 13245 if (ft_event->ies &&
13246 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13247 goto out;
13248 if (ft_event->ric_ies &&
13249 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13250 ft_event->ric_ies))
13251 goto out;
355199e0 13252
9c90a9f6 13253 genlmsg_end(msg, hdr);
355199e0 13254
68eb5503 13255 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13256 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13257 return;
13258 out:
13259 nlmsg_free(msg);
355199e0
JM		 13260}
13261EXPORT_SYMBOL(cfg80211_ft_event);
13262
5de17984
AS		 13263void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13264{
13265 struct cfg80211_registered_device *rdev;
13266 struct sk_buff *msg;
13267 void *hdr;
13268 u32 nlportid;
13269
f26cbf40 13270 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13271 if (!rdev->crit_proto_nlportid)
13272 return;
13273
13274 nlportid = rdev->crit_proto_nlportid;
13275 rdev->crit_proto_nlportid = 0;
13276
13277 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13278 if (!msg)
13279 return;
13280
13281 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13282 if (!hdr)
13283 goto nla_put_failure;
13284
13285 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13286 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13287 goto nla_put_failure;
13288
13289 genlmsg_end(msg, hdr);
13290
13291 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13292 return;
13293
13294 nla_put_failure:
13295 if (hdr)
13296 genlmsg_cancel(msg, hdr);
13297 nlmsg_free(msg);
13298
13299}
13300EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13301
348baf0e
JB		 13302void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13303{
13304 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13305 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13306 struct sk_buff *msg;
13307 void *hdr;
13308
13309 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13310 if (!msg)
13311 return;
13312
13313 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13314 if (!hdr)
13315 goto out;
13316
13317 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13318 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13319 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13320 goto out;
13321
13322 genlmsg_end(msg, hdr);
13323
13324 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13325 NL80211_MCGRP_MLME, GFP_KERNEL);
13326 return;
13327 out:
13328 nlmsg_free(msg);
13329}
13330
55682965
JB		 13331/* initialisation/exit functions */
13332
13333int nl80211_init(void)
13334{
0d63cbb5 13335 int err;
55682965 13336
2a94fe48
JB		 13337 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13338 nl80211_mcgrps);
55682965
JB		 13339 if (err)
13340 return err;
13341
026331c4
JM		 13342 err = netlink_register_notifier(&nl80211_netlink_notifier);
13343 if (err)
13344 goto err_out;
13345
55682965
JB		 13346 return 0;
13347 err_out:
13348 genl_unregister_family(&nl80211_fam);
13349 return err;
13350}
13351
13352void nl80211_exit(void)
13353{
026331c4 13354 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13355 genl_unregister_family(&nl80211_fam);
13356}
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