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mac80211: minstrel_ht: set default tx aggregation timeout to 0
[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
18998c38
EP		 3435 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3436 params.smps_mode =
3437 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3438 switch (params.smps_mode) {
3439 case NL80211_SMPS_OFF:
3440 break;
3441 case NL80211_SMPS_STATIC:
3442 if (!(rdev->wiphy.features &
3443 NL80211_FEATURE_STATIC_SMPS))
3444 return -EINVAL;
3445 break;
3446 case NL80211_SMPS_DYNAMIC:
3447 if (!(rdev->wiphy.features &
3448 NL80211_FEATURE_DYNAMIC_SMPS))
3449 return -EINVAL;
3450 break;
3451 default:
3452 return -EINVAL;
3453 }
3454 } else {
3455 params.smps_mode = NL80211_SMPS_OFF;
3456 }
3457
4baf6bea
OO		 3458 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3459 params.acl = parse_acl_data(&rdev->wiphy, info);
3460 if (IS_ERR(params.acl))
3461 return PTR_ERR(params.acl);
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{
e4208427
AB		 3971 if (params->listen_interval != -1 &&
3972 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89 3973 return -EINVAL;
e4208427 3974
c72e1140 3975 if (params->aid &&
e4208427
AB		 3976 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
3977 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
77ee7c89
JB		 3978 return -EINVAL;
3979
3980 /* When you run into this, adjust the code below for the new flag */
3981 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3982
3983 switch (statype) {
eef941e6
TP		 3984 case CFG80211_STA_MESH_PEER_KERNEL:
3985 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3986 /*
3987 * No ignoring the TDLS flag here -- the userspace mesh
3988 * code doesn't have the bug of including TDLS in the
3989 * mask everywhere.
3990 */
3991 if (params->sta_flags_mask &
3992 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3993 BIT(NL80211_STA_FLAG_MFP) |
3994 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3995 return -EINVAL;
3996 break;
3997 case CFG80211_STA_TDLS_PEER_SETUP:
3998 case CFG80211_STA_TDLS_PEER_ACTIVE:
3999 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4000 return -EINVAL;
4001 /* ignore since it can't change */
4002 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4003 break;
4004 default:
4005 /* disallow mesh-specific things */
4006 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4007 return -EINVAL;
4008 if (params->local_pm)
4009 return -EINVAL;
4010 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4011 return -EINVAL;
4012 }
4013
4014 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4015 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4016 /* TDLS can't be set, ... */
4017 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4018 return -EINVAL;
4019 /*
4020 * ... but don't bother the driver with it. This works around
4021 * a hostapd/wpa_supplicant issue -- it always includes the
4022 * TLDS_PEER flag in the mask even for AP mode.
4023 */
4024 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4025 }
4026
47edb11b
AB		 4027 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4028 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4029 /* reject other things that can't change */
4030 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4031 return -EINVAL;
4032 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4033 return -EINVAL;
4034 if (params->supported_rates)
4035 return -EINVAL;
4036 if (params->ext_capab || params->ht_capa || params->vht_capa)
4037 return -EINVAL;
4038 }
4039
47edb11b
AB		 4040 if (statype != CFG80211_STA_AP_CLIENT &&
4041 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
77ee7c89
JB		 4042 if (params->vlan)
4043 return -EINVAL;
4044 }
4045
4046 switch (statype) {
4047 case CFG80211_STA_AP_MLME_CLIENT:
4048 /* Use this only for authorizing/unauthorizing a station */
4049 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4050 return -EOPNOTSUPP;
4051 break;
4052 case CFG80211_STA_AP_CLIENT:
47edb11b 4053 case CFG80211_STA_AP_CLIENT_UNASSOC:
77ee7c89
JB		 4054 /* accept only the listed bits */
4055 if (params->sta_flags_mask &
4056 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4057 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4058 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4059 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4060 BIT(NL80211_STA_FLAG_WME) |
4061 BIT(NL80211_STA_FLAG_MFP)))
4062 return -EINVAL;
4063
4064 /* but authenticated/associated only if driver handles it */
4065 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4066 params->sta_flags_mask &
4067 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4068 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4069 return -EINVAL;
4070 break;
4071 case CFG80211_STA_IBSS:
4072 case CFG80211_STA_AP_STA:
4073 /* reject any changes other than AUTHORIZED */
4074 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4075 return -EINVAL;
4076 break;
4077 case CFG80211_STA_TDLS_PEER_SETUP:
4078 /* reject any changes other than AUTHORIZED or WME */
4079 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4080 BIT(NL80211_STA_FLAG_WME)))
4081 return -EINVAL;
4082 /* force (at least) rates when authorizing */
4083 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4084 !params->supported_rates)
4085 return -EINVAL;
4086 break;
4087 case CFG80211_STA_TDLS_PEER_ACTIVE:
4088 /* reject any changes */
4089 return -EINVAL;
eef941e6 4090 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4091 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4092 return -EINVAL;
4093 break;
eef941e6 4094 case CFG80211_STA_MESH_PEER_USER:
42925040
CYY		 4095 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4096 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
77ee7c89
JB		 4097 return -EINVAL;
4098 break;
4099 }
4100
4101 return 0;
4102}
4103EXPORT_SYMBOL(cfg80211_check_station_change);
4104
5727ef1b 4105/*
c258d2de 4106 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4107 */
80b99899
JB		 4108static struct net_device *get_vlan(struct genl_info *info,
4109 struct cfg80211_registered_device *rdev)
5727ef1b 4110{
463d0183 4111 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4112 struct net_device *v;
4113 int ret;
4114
4115 if (!vlanattr)
4116 return NULL;
4117
4118 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4119 if (!v)
4120 return ERR_PTR(-ENODEV);
4121
4122 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4123 ret = -EINVAL;
4124 goto error;
5727ef1b 4125 }
80b99899 4126
77ee7c89
JB		 4127 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4128 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4129 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4130 ret = -EINVAL;
4131 goto error;
4132 }
4133
80b99899
JB		 4134 if (!netif_running(v)) {
4135 ret = -ENETDOWN;
4136 goto error;
4137 }
4138
4139 return v;
4140 error:
4141 dev_put(v);
4142 return ERR_PTR(ret);
5727ef1b
JB		 4143}
4144
94e860f1
JB		 4145static const struct nla_policy
4146nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4147 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4148 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4149};
4150
ff276691
JB		 4151static int nl80211_parse_sta_wme(struct genl_info *info,
4152 struct station_parameters *params)
df881293 4153{
df881293
JM		 4154 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4155 struct nlattr *nla;
4156 int err;
4157
df881293
JM		 4158 /* parse WME attributes if present */
4159 if (!info->attrs[NL80211_ATTR_STA_WME])
4160 return 0;
4161
4162 nla = info->attrs[NL80211_ATTR_STA_WME];
4163 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4164 nl80211_sta_wme_policy);
4165 if (err)
4166 return err;
4167
4168 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4169 params->uapsd_queues = nla_get_u8(
4170 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4171 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4172 return -EINVAL;
4173
4174 if (tb[NL80211_STA_WME_MAX_SP])
4175 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4176
4177 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4178 return -EINVAL;
4179
4180 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4181
4182 return 0;
4183}
4184
c01fc9ad
SD		 4185static int nl80211_parse_sta_channel_info(struct genl_info *info,
4186 struct station_parameters *params)
4187{
4188 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4189 params->supported_channels =
4190 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4191 params->supported_channels_len =
4192 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4193 /*
4194 * Need to include at least one (first channel, number of
4195 * channels) tuple for each subband, and must have proper
4196 * tuples for the rest of the data as well.
4197 */
4198 if (params->supported_channels_len < 2)
4199 return -EINVAL;
4200 if (params->supported_channels_len % 2)
4201 return -EINVAL;
4202 }
4203
4204 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4205 params->supported_oper_classes =
4206 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4207 params->supported_oper_classes_len =
4208 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4209 /*
4210 * The value of the Length field of the Supported Operating
4211 * Classes element is between 2 and 253.
4212 */
4213 if (params->supported_oper_classes_len < 2 ||
4214 params->supported_oper_classes_len > 253)
4215 return -EINVAL;
4216 }
4217 return 0;
4218}
4219
ff276691
JB		 4220static int nl80211_set_station_tdls(struct genl_info *info,
4221 struct station_parameters *params)
4222{
c01fc9ad 4223 int err;
ff276691 4224 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4225 if (info->attrs[NL80211_ATTR_PEER_AID])
4226 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4227 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4228 params->ht_capa =
4229 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4230 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4231 params->vht_capa =
4232 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4233
c01fc9ad
SD		 4234 err = nl80211_parse_sta_channel_info(info, params);
4235 if (err)
4236 return err;
4237
ff276691
JB		 4238 return nl80211_parse_sta_wme(info, params);
4239}
4240
5727ef1b
JB		 4241static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4242{
4c476991 4243 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4244 struct net_device *dev = info->user_ptr[1];
5727ef1b 4245 struct station_parameters params;
77ee7c89
JB		 4246 u8 *mac_addr;
4247 int err;
5727ef1b
JB		 4248
4249 memset(&params, 0, sizeof(params));
4250
77ee7c89
JB		 4251 if (!rdev->ops->change_station)
4252 return -EOPNOTSUPP;
4253
e4208427
AB		 4254 /*
4255 * AID and listen_interval properties can be set only for unassociated
4256 * station. Include these parameters here and will check them in
4257 * cfg80211_check_station_change().
4258 */
a9bc31e4
AB		 4259 if (info->attrs[NL80211_ATTR_STA_AID])
4260 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
e4208427
AB		 4261
4262 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4263 params.listen_interval =
4264 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4265 else
4266 params.listen_interval = -1;
5727ef1b
JB		 4267
4268 if (!info->attrs[NL80211_ATTR_MAC])
4269 return -EINVAL;
4270
4271 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4272
4273 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4274 params.supported_rates =
4275 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4276 params.supported_rates_len =
4277 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4278 }
4279
9d62a986
JM		 4280 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4281 params.capability =
4282 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4283 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4284 }
4285
4286 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4287 params.ext_capab =
4288 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4289 params.ext_capab_len =
4290 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4291 }
4292
bdd3ae3d 4293 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4294 return -EINVAL;
4295
f8bacc21 4296 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4297 params.plink_action =
f8bacc21
JB		 4298 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4299 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4300 return -EINVAL;
4301 }
2ec600d6 4302
f8bacc21 4303 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4304 params.plink_state =
f8bacc21
JB		 4305 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4306 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4307 return -EINVAL;
4308 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4309 }
9c3990aa 4310
3b1c5a53
MP		 4311 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4312 enum nl80211_mesh_power_mode pm = nla_get_u32(
4313 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4314
4315 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4316 pm > NL80211_MESH_POWER_MAX)
4317 return -EINVAL;
4318
4319 params.local_pm = pm;
4320 }
4321
77ee7c89
JB		 4322 /* Include parameters for TDLS peer (will check later) */
4323 err = nl80211_set_station_tdls(info, &params);
4324 if (err)
4325 return err;
4326
4327 params.vlan = get_vlan(info, rdev);
4328 if (IS_ERR(params.vlan))
4329 return PTR_ERR(params.vlan);
4330
a97f4424
JB		 4331 switch (dev->ieee80211_ptr->iftype) {
4332 case NL80211_IFTYPE_AP:
4333 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4334 case NL80211_IFTYPE_P2P_GO:
074ac8df 4335 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4336 case NL80211_IFTYPE_STATION:
267335d6 4337 case NL80211_IFTYPE_ADHOC:
a97f4424 4338 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4339 break;
4340 default:
77ee7c89
JB		 4341 err = -EOPNOTSUPP;
4342 goto out_put_vlan;
034d655e
JB		 4343 }
4344
77ee7c89 4345 /* driver will call cfg80211_check_station_change() */
e35e4d28 4346 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4347
77ee7c89 4348 out_put_vlan:
5727ef1b
JB		 4349 if (params.vlan)
4350 dev_put(params.vlan);
3b85875a 4351
5727ef1b
JB		 4352 return err;
4353}
4354
4355static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4356{
4c476991 4357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4358 int err;
4c476991 4359 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4360 struct station_parameters params;
4361 u8 *mac_addr = NULL;
bda95eb1
JB		 4362 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4363 BIT(NL80211_STA_FLAG_ASSOCIATED);
5727ef1b
JB		 4364
4365 memset(&params, 0, sizeof(params));
4366
984c311b
JB		 4367 if (!rdev->ops->add_station)
4368 return -EOPNOTSUPP;
4369
5727ef1b
JB		 4370 if (!info->attrs[NL80211_ATTR_MAC])
4371 return -EINVAL;
4372
5727ef1b
JB		 4373 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4374 return -EINVAL;
4375
4376 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4377 return -EINVAL;
4378
5e4b6f56
JM		 4379 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4380 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4381 return -EINVAL;
4382
5727ef1b
JB		 4383 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4384 params.supported_rates =
4385 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4386 params.supported_rates_len =
4387 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4388 params.listen_interval =
4389 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4390
3d124ea2 4391 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4392 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4393 else
4394 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4395 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4396 return -EINVAL;
51b50fbe 4397
9d62a986
JM		 4398 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4399 params.capability =
4400 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4401 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4402 }
4403
4404 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4405 params.ext_capab =
4406 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4407 params.ext_capab_len =
4408 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4409 }
4410
36aedc90
JM		 4411 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4412 params.ht_capa =
4413 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4414
f461be3e
MP		 4415 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4416 params.vht_capa =
4417 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4418
60f4a7b1
MK		 4419 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4420 params.opmode_notif_used = true;
4421 params.opmode_notif =
4422 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4423 }
4424
f8bacc21 4425 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4426 params.plink_action =
f8bacc21
JB		 4427 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4428 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4429 return -EINVAL;
4430 }
96b78dff 4431
c01fc9ad
SD		 4432 err = nl80211_parse_sta_channel_info(info, &params);
4433 if (err)
4434 return err;
4435
ff276691
JB		 4436 err = nl80211_parse_sta_wme(info, &params);
4437 if (err)
4438 return err;
bdd90d5e 4439
bdd3ae3d 4440 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4441 return -EINVAL;
4442
496fcc29
JB		 4443 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4444 * as userspace might just pass through the capabilities from the IEs
4445 * directly, rather than enforcing this restriction and returning an
4446 * error in this case.
4447 */
4448 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4449 params.ht_capa = NULL;
4450 params.vht_capa = NULL;
4451 }
4452
77ee7c89
JB		 4453 /* When you run into this, adjust the code below for the new flag */
4454 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4455
bdd90d5e
JB		 4456 switch (dev->ieee80211_ptr->iftype) {
4457 case NL80211_IFTYPE_AP:
4458 case NL80211_IFTYPE_AP_VLAN:
4459 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4460 /* ignore WME attributes if iface/sta is not capable */
4461 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4462 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4463 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4464
bdd90d5e 4465 /* TDLS peers cannot be added */
3d124ea2
JM		 4466 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4467 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4468 return -EINVAL;
bdd90d5e
JB		 4469 /* but don't bother the driver with it */
4470 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4471
d582cffb
JB		 4472 /* allow authenticated/associated only if driver handles it */
4473 if (!(rdev->wiphy.features &
4474 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
bda95eb1 4475 params.sta_flags_mask & auth_assoc)
d582cffb
JB		 4476 return -EINVAL;
4477
bda95eb1
JB		 4478 /* Older userspace, or userspace wanting to be compatible with
4479 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4480 * and assoc flags in the mask, but assumes the station will be
4481 * added as associated anyway since this was the required driver
4482 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4483 * introduced.
4484 * In order to not bother drivers with this quirk in the API
4485 * set the flags in both the mask and set for new stations in
4486 * this case.
4487 */
4488 if (!(params.sta_flags_mask & auth_assoc)) {
4489 params.sta_flags_mask |= auth_assoc;
4490 params.sta_flags_set |= auth_assoc;
4491 }
4492
bdd90d5e
JB		 4493 /* must be last in here for error handling */
4494 params.vlan = get_vlan(info, rdev);
4495 if (IS_ERR(params.vlan))
4496 return PTR_ERR(params.vlan);
4497 break;
4498 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4499 /* ignore uAPSD data */
4500 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4501
d582cffb
JB		 4502 /* associated is disallowed */
4503 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4504 return -EINVAL;
bdd90d5e 4505 /* TDLS peers cannot be added */
3d124ea2
JM		 4506 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4507 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4508 return -EINVAL;
4509 break;
4510 case NL80211_IFTYPE_STATION:
93d08f0b 4511 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4512 /* ignore uAPSD data */
4513 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4514
77ee7c89
JB		 4515 /* these are disallowed */
4516 if (params.sta_flags_mask &
4517 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4518 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4519 return -EINVAL;
bdd90d5e
JB		 4520 /* Only TDLS peers can be added */
4521 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4522 return -EINVAL;
4523 /* Can only add if TDLS ... */
4524 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4525 return -EOPNOTSUPP;
4526 /* ... with external setup is supported */
4527 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4528 return -EOPNOTSUPP;
77ee7c89
JB		 4529 /*
4530 * Older wpa_supplicant versions always mark the TDLS peer
4531 * as authorized, but it shouldn't yet be.
4532 */
4533 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4534 break;
4535 default:
4536 return -EOPNOTSUPP;
c75786c9
EP		 4537 }
4538
bdd90d5e 4539 /* be aware of params.vlan when changing code here */
5727ef1b 4540
e35e4d28 4541 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4542
5727ef1b
JB		 4543 if (params.vlan)
4544 dev_put(params.vlan);
5727ef1b
JB		 4545 return err;
4546}
4547
4548static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4549{
4c476991
JB		 4550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4551 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4552 struct station_del_parameters params;
4553
4554 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4555
4556 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4557 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4558
e80cf853 4559 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4560 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4561 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4562 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4563 return -EINVAL;
5727ef1b 4564
4c476991
JB		 4565 if (!rdev->ops->del_station)
4566 return -EOPNOTSUPP;
3b85875a 4567
98856866
JM		 4568 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4569 params.subtype =
4570 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4571 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4572 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4573 return -EINVAL;
4574 } else {
4575 /* Default to Deauthentication frame */
4576 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4577 }
4578
4579 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4580 params.reason_code =
4581 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4582 if (params.reason_code == 0)
4583 return -EINVAL; /* 0 is reserved */
4584 } else {
4585 /* Default to reason code 2 */
4586 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4587 }
4588
89c771e5 4589 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4590}
4591
15e47304 4592static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4593 int flags, struct net_device *dev,
4594 u8 *dst, u8 *next_hop,
4595 struct mpath_info *pinfo)
4596{
4597 void *hdr;
4598 struct nlattr *pinfoattr;
4599
1ef4c850 4600 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4601 if (!hdr)
4602 return -1;
4603
9360ffd1
DM		 4604 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4605 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4606 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4607 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4608 goto nla_put_failure;
f5ea9120 4609
2ec600d6
LCC		 4610 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4611 if (!pinfoattr)
4612 goto nla_put_failure;
9360ffd1
DM		 4613 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4614 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4615 pinfo->frame_qlen))
4616 goto nla_put_failure;
4617 if (((pinfo->filled & MPATH_INFO_SN) &&
4618 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4619 ((pinfo->filled & MPATH_INFO_METRIC) &&
4620 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4621 pinfo->metric)) ||
4622 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4623 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4624 pinfo->exptime)) ||
4625 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4626 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4627 pinfo->flags)) ||
4628 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4629 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4630 pinfo->discovery_timeout)) ||
4631 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4632 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4633 pinfo->discovery_retries)))
4634 goto nla_put_failure;
2ec600d6
LCC		 4635
4636 nla_nest_end(msg, pinfoattr);
4637
053c095a
JB		 4638 genlmsg_end(msg, hdr);
4639 return 0;
2ec600d6
LCC		 4640
4641 nla_put_failure:
bc3ed28c
TG		 4642 genlmsg_cancel(msg, hdr);
4643 return -EMSGSIZE;
2ec600d6
LCC		 4644}
4645
4646static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4647 struct netlink_callback *cb)
2ec600d6 4648{
2ec600d6 4649 struct mpath_info pinfo;
1b8ec87a 4650 struct cfg80211_registered_device *rdev;
97990a06 4651 struct wireless_dev *wdev;
2ec600d6
LCC		 4652 u8 dst[ETH_ALEN];
4653 u8 next_hop[ETH_ALEN];
97990a06 4654 int path_idx = cb->args[2];
2ec600d6 4655 int err;
2ec600d6 4656
1b8ec87a 4657 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4658 if (err)
4659 return err;
bba95fef 4660
1b8ec87a 4661 if (!rdev->ops->dump_mpath) {
eec60b03 4662 err = -EOPNOTSUPP;
bba95fef
JB		 4663 goto out_err;
4664 }
4665
97990a06 4666 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4667 err = -EOPNOTSUPP;
0448b5fc 4668 goto out_err;
eec60b03
JM		 4669 }
4670
bba95fef 4671 while (1) {
1b8ec87a 4672 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4673 next_hop, &pinfo);
bba95fef 4674 if (err == -ENOENT)
2ec600d6 4675 break;
bba95fef 4676 if (err)
3b85875a 4677 goto out_err;
2ec600d6 4678
15e47304 4679 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4680 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4681 wdev->netdev, dst, next_hop,
bba95fef
JB		 4682 &pinfo) < 0)
4683 goto out;
2ec600d6 4684
bba95fef 4685 path_idx++;
2ec600d6 4686 }
2ec600d6 4687
2ec600d6 4688
bba95fef 4689 out:
97990a06 4690 cb->args[2] = path_idx;
bba95fef 4691 err = skb->len;
bba95fef 4692 out_err:
1b8ec87a 4693 nl80211_finish_wdev_dump(rdev);
bba95fef 4694 return err;
2ec600d6
LCC		 4695}
4696
4697static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4698{
4c476991 4699 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4700 int err;
4c476991 4701 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4702 struct mpath_info pinfo;
4703 struct sk_buff *msg;
4704 u8 *dst = NULL;
4705 u8 next_hop[ETH_ALEN];
4706
4707 memset(&pinfo, 0, sizeof(pinfo));
4708
4709 if (!info->attrs[NL80211_ATTR_MAC])
4710 return -EINVAL;
4711
4712 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4713
4c476991
JB		 4714 if (!rdev->ops->get_mpath)
4715 return -EOPNOTSUPP;
2ec600d6 4716
4c476991
JB		 4717 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4718 return -EOPNOTSUPP;
eec60b03 4719
e35e4d28 4720 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4721 if (err)
4c476991 4722 return err;
2ec600d6 4723
fd2120ca 4724 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4725 if (!msg)
4c476991 4726 return -ENOMEM;
2ec600d6 4727
15e47304 4728 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4729 dev, dst, next_hop, &pinfo) < 0) {
4730 nlmsg_free(msg);
4731 return -ENOBUFS;
4732 }
3b85875a 4733
4c476991 4734 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4735}
4736
4737static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4738{
4c476991
JB		 4739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4740 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4741 u8 *dst = NULL;
4742 u8 *next_hop = NULL;
4743
4744 if (!info->attrs[NL80211_ATTR_MAC])
4745 return -EINVAL;
4746
4747 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4748 return -EINVAL;
4749
4750 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4751 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4752
4c476991
JB		 4753 if (!rdev->ops->change_mpath)
4754 return -EOPNOTSUPP;
35a8efe1 4755
4c476991
JB		 4756 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4757 return -EOPNOTSUPP;
2ec600d6 4758
e35e4d28 4759 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4760}
4c476991 4761
2ec600d6
LCC		 4762static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4763{
4c476991
JB		 4764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4765 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4766 u8 *dst = NULL;
4767 u8 *next_hop = NULL;
4768
4769 if (!info->attrs[NL80211_ATTR_MAC])
4770 return -EINVAL;
4771
4772 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4773 return -EINVAL;
4774
4775 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4776 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4777
4c476991
JB		 4778 if (!rdev->ops->add_mpath)
4779 return -EOPNOTSUPP;
35a8efe1 4780
4c476991
JB		 4781 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4782 return -EOPNOTSUPP;
2ec600d6 4783
e35e4d28 4784 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4785}
4786
4787static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4788{
4c476991
JB		 4789 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4790 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4791 u8 *dst = NULL;
4792
4793 if (info->attrs[NL80211_ATTR_MAC])
4794 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4795
4c476991
JB		 4796 if (!rdev->ops->del_mpath)
4797 return -EOPNOTSUPP;
3b85875a 4798
e35e4d28 4799 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4800}
4801
66be7d2b
HR		 4802static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4803{
4804 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4805 int err;
4806 struct net_device *dev = info->user_ptr[1];
4807 struct mpath_info pinfo;
4808 struct sk_buff *msg;
4809 u8 *dst = NULL;
4810 u8 mpp[ETH_ALEN];
4811
4812 memset(&pinfo, 0, sizeof(pinfo));
4813
4814 if (!info->attrs[NL80211_ATTR_MAC])
4815 return -EINVAL;
4816
4817 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4818
4819 if (!rdev->ops->get_mpp)
4820 return -EOPNOTSUPP;
4821
4822 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4823 return -EOPNOTSUPP;
4824
4825 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4826 if (err)
4827 return err;
4828
4829 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4830 if (!msg)
4831 return -ENOMEM;
4832
4833 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4834 dev, dst, mpp, &pinfo) < 0) {
4835 nlmsg_free(msg);
4836 return -ENOBUFS;
4837 }
4838
4839 return genlmsg_reply(msg, info);
4840}
4841
4842static int nl80211_dump_mpp(struct sk_buff *skb,
4843 struct netlink_callback *cb)
4844{
4845 struct mpath_info pinfo;
4846 struct cfg80211_registered_device *rdev;
4847 struct wireless_dev *wdev;
4848 u8 dst[ETH_ALEN];
4849 u8 mpp[ETH_ALEN];
4850 int path_idx = cb->args[2];
4851 int err;
4852
4853 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4854 if (err)
4855 return err;
4856
4857 if (!rdev->ops->dump_mpp) {
4858 err = -EOPNOTSUPP;
4859 goto out_err;
4860 }
4861
4862 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4863 err = -EOPNOTSUPP;
4864 goto out_err;
4865 }
4866
4867 while (1) {
4868 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4869 mpp, &pinfo);
4870 if (err == -ENOENT)
4871 break;
4872 if (err)
4873 goto out_err;
4874
4875 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4876 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4877 wdev->netdev, dst, mpp,
4878 &pinfo) < 0)
4879 goto out;
4880
4881 path_idx++;
4882 }
4883
4884 out:
4885 cb->args[2] = path_idx;
4886 err = skb->len;
4887 out_err:
4888 nl80211_finish_wdev_dump(rdev);
4889 return err;
4890}
4891
9f1ba906
JM		 4892static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4893{
4c476991
JB		 4894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4895 struct net_device *dev = info->user_ptr[1];
c56589ed 4896 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4897 struct bss_parameters params;
c56589ed 4898 int err;
9f1ba906
JM		 4899
4900 memset(&params, 0, sizeof(params));
4901 /* default to not changing parameters */
4902 params.use_cts_prot = -1;
4903 params.use_short_preamble = -1;
4904 params.use_short_slot_time = -1;
fd8aaaf3 4905 params.ap_isolate = -1;
50b12f59 4906 params.ht_opmode = -1;
53cabad7
JB		 4907 params.p2p_ctwindow = -1;
4908 params.p2p_opp_ps = -1;
9f1ba906
JM		 4909
4910 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4911 params.use_cts_prot =
4912 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4913 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4914 params.use_short_preamble =
4915 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4916 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4917 params.use_short_slot_time =
4918 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4919 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4920 params.basic_rates =
4921 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4922 params.basic_rates_len =
4923 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4924 }
fd8aaaf3
FF		 4925 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4926 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4927 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4928 params.ht_opmode =
4929 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4930
53cabad7
JB		 4931 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4932 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4933 return -EINVAL;
4934 params.p2p_ctwindow =
4935 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4936 if (params.p2p_ctwindow < 0)
4937 return -EINVAL;
4938 if (params.p2p_ctwindow != 0 &&
4939 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4940 return -EINVAL;
4941 }
4942
4943 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4944 u8 tmp;
4945
4946 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4947 return -EINVAL;
4948 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4949 if (tmp > 1)
4950 return -EINVAL;
4951 params.p2p_opp_ps = tmp;
4952 if (params.p2p_opp_ps &&
4953 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4954 return -EINVAL;
4955 }
4956
4c476991
JB		 4957 if (!rdev->ops->change_bss)
4958 return -EOPNOTSUPP;
9f1ba906 4959
074ac8df 4960 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4961 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4962 return -EOPNOTSUPP;
3b85875a 4963
c56589ed
SW		 4964 wdev_lock(wdev);
4965 err = rdev_change_bss(rdev, dev, &params);
4966 wdev_unlock(wdev);
4967
4968 return err;
9f1ba906
JM		 4969}
4970
b2e1b302
LR		 4971static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4972{
b2e1b302 4973 char *data = NULL;
05050753 4974 bool is_indoor;
57b5ce07 4975 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 4976 u32 owner_nlportid;
4977
b2e1b302 4978
80778f18
LR		 4979 /*
4980 * You should only get this when cfg80211 hasn't yet initialized
4981 * completely when built-in to the kernel right between the time
4982 * window between nl80211_init() and regulatory_init(), if that is
4983 * even possible.
4984 */
458f4f9e 4985 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4986 return -EINPROGRESS;
80778f18 4987
57b5ce07
LR		 4988 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4989 user_reg_hint_type =
4990 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4991 else
4992 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4993
4994 switch (user_reg_hint_type) {
4995 case NL80211_USER_REG_HINT_USER:
4996 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4997 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4998 return -EINVAL;
4999
5000 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5001 return regulatory_hint_user(data, user_reg_hint_type);
5002 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 5003 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5004 owner_nlportid = info->snd_portid;
5005 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5006 } else {
5007 owner_nlportid = 0;
5008 is_indoor = true;
5009 }
5010
5011 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5012 default:
5013 return -EINVAL;
5014 }
b2e1b302
LR		 5015}
5016
24bdd9f4 5017static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5018 struct genl_info *info)
93da9cc1 5019{
4c476991 5020 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5021 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5022 struct wireless_dev *wdev = dev->ieee80211_ptr;
5023 struct mesh_config cur_params;
5024 int err = 0;
93da9cc1 5025 void *hdr;
5026 struct nlattr *pinfoattr;
5027 struct sk_buff *msg;
5028
29cbe68c
JB		 5029 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5030 return -EOPNOTSUPP;
5031
24bdd9f4 5032 if (!rdev->ops->get_mesh_config)
4c476991 5033 return -EOPNOTSUPP;
f3f92586 5034
29cbe68c
JB		 5035 wdev_lock(wdev);
5036 /* If not connected, get default parameters */
5037 if (!wdev->mesh_id_len)
5038 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5039 else
e35e4d28 5040 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5041 wdev_unlock(wdev);
5042
93da9cc1 5043 if (err)
4c476991 5044 return err;
93da9cc1 5045
5046 /* Draw up a netlink message to send back */
fd2120ca 5047 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5048 if (!msg)
5049 return -ENOMEM;
15e47304 5050 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5051 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5052 if (!hdr)
efe1cf0c 5053 goto out;
24bdd9f4 5054 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5055 if (!pinfoattr)
5056 goto nla_put_failure;
9360ffd1
DM		 5057 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5058 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5059 cur_params.dot11MeshRetryTimeout) ||
5060 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5061 cur_params.dot11MeshConfirmTimeout) ||
5062 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5063 cur_params.dot11MeshHoldingTimeout) ||
5064 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5065 cur_params.dot11MeshMaxPeerLinks) ||
5066 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5067 cur_params.dot11MeshMaxRetries) ||
5068 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5069 cur_params.dot11MeshTTL) ||
5070 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5071 cur_params.element_ttl) ||
5072 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5073 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5074 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5075 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5076 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5077 cur_params.dot11MeshHWMPmaxPREQretries) ||
5078 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5079 cur_params.path_refresh_time) ||
5080 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5081 cur_params.min_discovery_timeout) ||
5082 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5083 cur_params.dot11MeshHWMPactivePathTimeout) ||
5084 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5085 cur_params.dot11MeshHWMPpreqMinInterval) ||
5086 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5087 cur_params.dot11MeshHWMPperrMinInterval) ||
5088 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5089 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5090 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5091 cur_params.dot11MeshHWMPRootMode) ||
5092 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5093 cur_params.dot11MeshHWMPRannInterval) ||
5094 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5095 cur_params.dot11MeshGateAnnouncementProtocol) ||
5096 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5097 cur_params.dot11MeshForwarding) ||
5098 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5099 cur_params.rssi_threshold) ||
5100 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5101 cur_params.ht_opmode) ||
5102 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5103 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5104 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5105 cur_params.dot11MeshHWMProotInterval) ||
5106 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5107 cur_params.dot11MeshHWMPconfirmationInterval) ||
5108 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5109 cur_params.power_mode) ||
5110 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5111 cur_params.dot11MeshAwakeWindowDuration) ||
5112 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5113 cur_params.plink_timeout))
9360ffd1 5114 goto nla_put_failure;
93da9cc1 5115 nla_nest_end(msg, pinfoattr);
5116 genlmsg_end(msg, hdr);
4c476991 5117 return genlmsg_reply(msg, info);
93da9cc1 5118
3b85875a 5119 nla_put_failure:
93da9cc1 5120 genlmsg_cancel(msg, hdr);
efe1cf0c 5121 out:
d080e275 5122 nlmsg_free(msg);
4c476991 5123 return -ENOBUFS;
93da9cc1 5124}
5125
b54452b0 5126static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5127 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5128 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5129 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5130 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5131 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5132 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5133 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5134 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5135 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5136 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5137 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5138 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5139 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5140 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5141 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5142 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5143 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5144 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5145 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5146 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5147 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5148 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5149 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5150 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5151 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5152 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5153 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5154 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5155};
5156
c80d545d
JC		 5157static const struct nla_policy
5158 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5159 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5160 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5161 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5162 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5163 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5164 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5165 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5166 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5167 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5168};
5169
24bdd9f4 5170static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5171 struct mesh_config *cfg,
5172 u32 *mask_out)
93da9cc1 5173{
93da9cc1 5174 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5175 u32 mask = 0;
93da9cc1 5176
ea54fba2
MP		 5177#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5178do { \
5179 if (tb[attr]) { \
5180 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5181 return -EINVAL; \
5182 cfg->param = fn(tb[attr]); \
5183 mask |= (1 << (attr - 1)); \
5184 } \
5185} while (0)
bd90fdcc
JB		 5186
5187
24bdd9f4 5188 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5189 return -EINVAL;
5190 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5191 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5192 nl80211_meshconf_params_policy))
93da9cc1 5193 return -EINVAL;
5194
93da9cc1 5195 /* This makes sure that there aren't more than 32 mesh config
5196 * parameters (otherwise our bitfield scheme would not work.) */
5197 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5198
5199 /* Fill in the params struct */
ea54fba2 5200 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5201 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5202 nla_get_u16);
ea54fba2 5203 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5204 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5205 nla_get_u16);
ea54fba2 5206 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5207 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5208 nla_get_u16);
ea54fba2 5209 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5210 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5211 nla_get_u16);
ea54fba2 5212 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5213 mask, NL80211_MESHCONF_MAX_RETRIES,
5214 nla_get_u8);
ea54fba2 5215 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5216 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5217 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5218 mask, NL80211_MESHCONF_ELEMENT_TTL,
5219 nla_get_u8);
ea54fba2 5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5221 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5222 nla_get_u8);
ea54fba2
MP		 5223 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5224 1, 255, mask,
a4f606ea
CYY		 5225 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5226 nla_get_u32);
ea54fba2 5227 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5228 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5229 nla_get_u8);
ea54fba2 5230 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5231 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5232 nla_get_u32);
ea54fba2 5233 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5234 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5235 nla_get_u16);
ea54fba2
MP		 5236 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5237 1, 65535, mask,
a4f606ea
CYY		 5238 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5239 nla_get_u32);
93da9cc1 5240 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5241 1, 65535, mask,
5242 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5243 nla_get_u16);
dca7e943 5244 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5245 1, 65535, mask,
5246 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5247 nla_get_u16);
93da9cc1 5248 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5249 dot11MeshHWMPnetDiameterTraversalTime,
5250 1, 65535, mask,
a4f606ea
CYY		 5251 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5252 nla_get_u16);
ea54fba2
MP		 5253 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5254 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5255 nla_get_u8);
5256 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5257 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5258 nla_get_u16);
63c5723b 5259 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5260 dot11MeshGateAnnouncementProtocol, 0, 1,
5261 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5262 nla_get_u8);
ea54fba2 5263 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5264 mask, NL80211_MESHCONF_FORWARDING,
5265 nla_get_u8);
83374fe9 5266 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5267 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5268 nla_get_s32);
ea54fba2 5269 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5270 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5271 nla_get_u16);
5272 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5273 1, 65535, mask,
ac1073a6
CYY		 5274 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5275 nla_get_u32);
ea54fba2 5276 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5277 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5278 nla_get_u16);
5279 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5280 dot11MeshHWMPconfirmationInterval,
5281 1, 65535, mask,
728b19e5 5282 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5283 nla_get_u16);
3b1c5a53
MP		 5284 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5285 NL80211_MESH_POWER_ACTIVE,
5286 NL80211_MESH_POWER_MAX,
5287 mask, NL80211_MESHCONF_POWER_MODE,
5288 nla_get_u32);
5289 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5290 0, 65535, mask,
5291 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
31f909a2 5292 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538
CT		 5293 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5294 nla_get_u32);
bd90fdcc
JB		 5295 if (mask_out)
5296 *mask_out = mask;
c80d545d 5297
bd90fdcc
JB		 5298 return 0;
5299
5300#undef FILL_IN_MESH_PARAM_IF_SET
5301}
5302
c80d545d
JC		 5303static int nl80211_parse_mesh_setup(struct genl_info *info,
5304 struct mesh_setup *setup)
5305{
bb2798d4 5306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5307 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5308
5309 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5310 return -EINVAL;
5311 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5312 info->attrs[NL80211_ATTR_MESH_SETUP],
5313 nl80211_mesh_setup_params_policy))
5314 return -EINVAL;
5315
d299a1f2
JC		 5316 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5317 setup->sync_method =
5318 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5319 IEEE80211_SYNC_METHOD_VENDOR :
5320 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5321
c80d545d
JC		 5322 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5323 setup->path_sel_proto =
5324 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5325 IEEE80211_PATH_PROTOCOL_VENDOR :
5326 IEEE80211_PATH_PROTOCOL_HWMP;
5327
5328 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5329 setup->path_metric =
5330 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5331 IEEE80211_PATH_METRIC_VENDOR :
5332 IEEE80211_PATH_METRIC_AIRTIME;
5333
581a8b0f
JC		 5334
5335 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5336 struct nlattr *ieattr =
581a8b0f 5337 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5338 if (!is_valid_ie_attr(ieattr))
5339 return -EINVAL;
581a8b0f
JC		 5340 setup->ie = nla_data(ieattr);
5341 setup->ie_len = nla_len(ieattr);
c80d545d 5342 }
bb2798d4
TP		 5343 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5344 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5345 return -EINVAL;
5346 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5347 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5348 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5349 if (setup->is_secure)
5350 setup->user_mpm = true;
c80d545d 5351
6e16d90b
CT		 5352 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5353 if (!setup->user_mpm)
5354 return -EINVAL;
5355 setup->auth_id =
5356 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5357 }
5358
c80d545d
JC		 5359 return 0;
5360}
5361
24bdd9f4 5362static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5363 struct genl_info *info)
bd90fdcc
JB		 5364{
5365 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5366 struct net_device *dev = info->user_ptr[1];
29cbe68c 5367 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5368 struct mesh_config cfg;
5369 u32 mask;
5370 int err;
5371
29cbe68c
JB		 5372 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5373 return -EOPNOTSUPP;
5374
24bdd9f4 5375 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5376 return -EOPNOTSUPP;
5377
24bdd9f4 5378 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5379 if (err)
5380 return err;
5381
29cbe68c
JB		 5382 wdev_lock(wdev);
5383 if (!wdev->mesh_id_len)
5384 err = -ENOLINK;
5385
5386 if (!err)
e35e4d28 5387 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5388
5389 wdev_unlock(wdev);
5390
5391 return err;
93da9cc1 5392}
5393
ad30ca2c
AN		 5394static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5395 struct sk_buff *msg)
f130347c 5396{
f130347c
LR		 5397 struct nlattr *nl_reg_rules;
5398 unsigned int i;
f130347c 5399
458f4f9e
JB		 5400 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5401 (regdom->dfs_region &&
5402 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5403 goto nla_put_failure;
458f4f9e 5404
f130347c
LR		 5405 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5406 if (!nl_reg_rules)
ad30ca2c 5407 goto nla_put_failure;
f130347c 5408
458f4f9e 5409 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5410 struct nlattr *nl_reg_rule;
5411 const struct ieee80211_reg_rule *reg_rule;
5412 const struct ieee80211_freq_range *freq_range;
5413 const struct ieee80211_power_rule *power_rule;
97524820 5414 unsigned int max_bandwidth_khz;
f130347c 5415
458f4f9e 5416 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5417 freq_range = &reg_rule->freq_range;
5418 power_rule = &reg_rule->power_rule;
5419
5420 nl_reg_rule = nla_nest_start(msg, i);
5421 if (!nl_reg_rule)
ad30ca2c 5422 goto nla_put_failure;
f130347c 5423
97524820
JD		 5424 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5425 if (!max_bandwidth_khz)
5426 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5427 reg_rule);
5428
9360ffd1
DM		 5429 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5430 reg_rule->flags) ||
5431 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5432 freq_range->start_freq_khz) ||
5433 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5434 freq_range->end_freq_khz) ||
5435 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5436 max_bandwidth_khz) ||
9360ffd1
DM		 5437 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5438 power_rule->max_antenna_gain) ||
5439 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5440 power_rule->max_eirp) ||
5441 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5442 reg_rule->dfs_cac_ms))
ad30ca2c 5443 goto nla_put_failure;
f130347c
LR		 5444
5445 nla_nest_end(msg, nl_reg_rule);
5446 }
5447
5448 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5449 return 0;
5450
5451nla_put_failure:
5452 return -EMSGSIZE;
5453}
5454
5455static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5456{
5457 const struct ieee80211_regdomain *regdom = NULL;
5458 struct cfg80211_registered_device *rdev;
5459 struct wiphy *wiphy = NULL;
5460 struct sk_buff *msg;
5461 void *hdr;
5462
5463 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5464 if (!msg)
5465 return -ENOBUFS;
5466
5467 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5468 NL80211_CMD_GET_REG);
5469 if (!hdr)
5470 goto put_failure;
5471
5472 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5473 bool self_managed;
5474
ad30ca2c
AN		 5475 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5476 if (IS_ERR(rdev)) {
5477 nlmsg_free(msg);
5478 return PTR_ERR(rdev);
5479 }
5480
5481 wiphy = &rdev->wiphy;
1bdd716c
AN		 5482 self_managed = wiphy->regulatory_flags &
5483 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5484 regdom = get_wiphy_regdom(wiphy);
5485
1bdd716c
AN		 5486 /* a self-managed-reg device must have a private regdom */
5487 if (WARN_ON(!regdom && self_managed)) {
5488 nlmsg_free(msg);
5489 return -EINVAL;
5490 }
5491
ad30ca2c
AN		 5492 if (regdom &&
5493 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5494 goto nla_put_failure;
5495 }
5496
5497 if (!wiphy && reg_last_request_cell_base() &&
5498 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5499 NL80211_USER_REG_HINT_CELL_BASE))
5500 goto nla_put_failure;
5501
5502 rcu_read_lock();
5503
5504 if (!regdom)
5505 regdom = rcu_dereference(cfg80211_regdomain);
5506
5507 if (nl80211_put_regdom(regdom, msg))
5508 goto nla_put_failure_rcu;
5509
5510 rcu_read_unlock();
f130347c
LR		 5511
5512 genlmsg_end(msg, hdr);
5fe231e8 5513 return genlmsg_reply(msg, info);
f130347c 5514
458f4f9e
JB		 5515nla_put_failure_rcu:
5516 rcu_read_unlock();
f130347c
LR		 5517nla_put_failure:
5518 genlmsg_cancel(msg, hdr);
efe1cf0c 5519put_failure:
d080e275 5520 nlmsg_free(msg);
5fe231e8 5521 return -EMSGSIZE;
f130347c
LR		 5522}
5523
ad30ca2c
AN		 5524static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5525 u32 seq, int flags, struct wiphy *wiphy,
5526 const struct ieee80211_regdomain *regdom)
5527{
5528 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5529 NL80211_CMD_GET_REG);
5530
5531 if (!hdr)
5532 return -1;
5533
5534 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5535
5536 if (nl80211_put_regdom(regdom, msg))
5537 goto nla_put_failure;
5538
5539 if (!wiphy && reg_last_request_cell_base() &&
5540 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5541 NL80211_USER_REG_HINT_CELL_BASE))
5542 goto nla_put_failure;
5543
5544 if (wiphy &&
5545 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5546 goto nla_put_failure;
5547
1bdd716c
AN		 5548 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5549 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5550 goto nla_put_failure;
5551
053c095a
JB		 5552 genlmsg_end(msg, hdr);
5553 return 0;
ad30ca2c
AN		 5554
5555nla_put_failure:
5556 genlmsg_cancel(msg, hdr);
5557 return -EMSGSIZE;
5558}
5559
5560static int nl80211_get_reg_dump(struct sk_buff *skb,
5561 struct netlink_callback *cb)
5562{
5563 const struct ieee80211_regdomain *regdom = NULL;
5564 struct cfg80211_registered_device *rdev;
5565 int err, reg_idx, start = cb->args[2];
5566
5567 rtnl_lock();
5568
5569 if (cfg80211_regdomain && start == 0) {
5570 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5571 NLM_F_MULTI, NULL,
5572 rtnl_dereference(cfg80211_regdomain));
5573 if (err < 0)
5574 goto out_err;
5575 }
5576
5577 /* the global regdom is idx 0 */
5578 reg_idx = 1;
5579 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5580 regdom = get_wiphy_regdom(&rdev->wiphy);
5581 if (!regdom)
5582 continue;
5583
5584 if (++reg_idx <= start)
5585 continue;
5586
5587 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5588 NLM_F_MULTI, &rdev->wiphy, regdom);
5589 if (err < 0) {
5590 reg_idx--;
5591 break;
5592 }
5593 }
5594
5595 cb->args[2] = reg_idx;
5596 err = skb->len;
5597out_err:
5598 rtnl_unlock();
5599 return err;
5600}
5601
b6863036
JB		 5602#ifdef CONFIG_CFG80211_CRDA_SUPPORT
5603static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5604 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5605 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5606 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5607 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5608 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5609 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5610 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5611};
5612
5613static int parse_reg_rule(struct nlattr *tb[],
5614 struct ieee80211_reg_rule *reg_rule)
5615{
5616 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
5617 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
5618
5619 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5620 return -EINVAL;
5621 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5622 return -EINVAL;
5623 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5624 return -EINVAL;
5625 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5626 return -EINVAL;
5627 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5628 return -EINVAL;
5629
5630 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5631
5632 freq_range->start_freq_khz =
5633 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5634 freq_range->end_freq_khz =
5635 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5636 freq_range->max_bandwidth_khz =
5637 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5638
5639 power_rule->max_eirp =
5640 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5641
5642 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5643 power_rule->max_antenna_gain =
5644 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5645
5646 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5647 reg_rule->dfs_cac_ms =
5648 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5649
5650 return 0;
5651}
5652
b2e1b302
LR		 5653static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5654{
5655 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5656 struct nlattr *nl_reg_rule;
ea372c54
JB		 5657 char *alpha2;
5658 int rem_reg_rules, r;
b2e1b302 5659 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5660 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5661 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5662
5663 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5664 return -EINVAL;
5665
5666 if (!info->attrs[NL80211_ATTR_REG_RULES])
5667 return -EINVAL;
5668
5669 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5670
8b60b078
LR		 5671 if (info->attrs[NL80211_ATTR_DFS_REGION])
5672 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5673
b2e1b302 5674 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5675 rem_reg_rules) {
b2e1b302
LR		 5676 num_rules++;
5677 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5678 return -EINVAL;
b2e1b302
LR		 5679 }
5680
e438768f
LR		 5681 if (!reg_is_valid_request(alpha2))
5682 return -EINVAL;
5683
b2e1b302 5684 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5685 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5686
5687 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5688 if (!rd)
5689 return -ENOMEM;
b2e1b302
LR		 5690
5691 rd->n_reg_rules = num_rules;
5692 rd->alpha2[0] = alpha2[0];
5693 rd->alpha2[1] = alpha2[1];
5694
8b60b078
LR		 5695 /*
5696 * Disable DFS master mode if the DFS region was
5697 * not supported or known on this kernel.
5698 */
5699 if (reg_supported_dfs_region(dfs_region))
5700 rd->dfs_region = dfs_region;
5701
b2e1b302 5702 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5703 rem_reg_rules) {
ae811e21
JB		 5704 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5705 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5706 reg_rule_policy);
5707 if (r)
5708 goto bad_reg;
b2e1b302
LR		 5709 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5710 if (r)
5711 goto bad_reg;
5712
5713 rule_idx++;
5714
d0e18f83
LR		 5715 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5716 r = -EINVAL;
b2e1b302 5717 goto bad_reg;
d0e18f83 5718 }
b2e1b302
LR		 5719 }
5720
c37722bd 5721 r = set_regdom(rd, REGD_SOURCE_CRDA);
6913b49a 5722 /* set_regdom took ownership */
1a919318 5723 rd = NULL;
b2e1b302 5724
d2372b31 5725 bad_reg:
b2e1b302 5726 kfree(rd);
d0e18f83 5727 return r;
b2e1b302 5728}
b6863036 5729#endif /* CONFIG_CFG80211_CRDA_SUPPORT */
b2e1b302 5730
83f5e2cf
JB		 5731static int validate_scan_freqs(struct nlattr *freqs)
5732{
5733 struct nlattr *attr1, *attr2;
5734 int n_channels = 0, tmp1, tmp2;
5735
5736 nla_for_each_nested(attr1, freqs, tmp1) {
5737 n_channels++;
5738 /*
5739 * Some hardware has a limited channel list for
5740 * scanning, and it is pretty much nonsensical
5741 * to scan for a channel twice, so disallow that
5742 * and don't require drivers to check that the
5743 * channel list they get isn't longer than what
5744 * they can scan, as long as they can scan all
5745 * the channels they registered at once.
5746 */
5747 nla_for_each_nested(attr2, freqs, tmp2)
5748 if (attr1 != attr2 &&
5749 nla_get_u32(attr1) == nla_get_u32(attr2))
5750 return 0;
5751 }
5752
5753 return n_channels;
5754}
5755
ad2b26ab
JB		 5756static int nl80211_parse_random_mac(struct nlattr **attrs,
5757 u8 *mac_addr, u8 *mac_addr_mask)
5758{
5759 int i;
5760
5761 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
d2beae10
JP		 5762 eth_zero_addr(mac_addr);
5763 eth_zero_addr(mac_addr_mask);
ad2b26ab
JB		 5764 mac_addr[0] = 0x2;
5765 mac_addr_mask[0] = 0x3;
5766
5767 return 0;
5768 }
5769
5770 /* need both or none */
5771 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5772 return -EINVAL;
5773
5774 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5775 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5776
5777 /* don't allow or configure an mcast address */
5778 if (!is_multicast_ether_addr(mac_addr_mask) ||
5779 is_multicast_ether_addr(mac_addr))
5780 return -EINVAL;
5781
5782 /*
5783 * allow users to pass a MAC address that has bits set outside
5784 * of the mask, but don't bother drivers with having to deal
5785 * with such bits
5786 */
5787 for (i = 0; i < ETH_ALEN; i++)
5788 mac_addr[i] &= mac_addr_mask[i];
5789
5790 return 0;
5791}
5792
2a519311
JB		 5793static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5794{
4c476991 5795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5796 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5797 struct cfg80211_scan_request *request;
2a519311
JB		 5798 struct nlattr *attr;
5799 struct wiphy *wiphy;
83f5e2cf 5800 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5801 size_t ie_len;
2a519311 5802
f4a11bb0
JB		 5803 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5804 return -EINVAL;
5805
79c97e97 5806 wiphy = &rdev->wiphy;
2a519311 5807
4c476991
JB		 5808 if (!rdev->ops->scan)
5809 return -EOPNOTSUPP;
2a519311 5810
f9d15d16 5811 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5812 err = -EBUSY;
5813 goto unlock;
5814 }
2a519311
JB		 5815
5816 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5817 n_channels = validate_scan_freqs(
5818 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5819 if (!n_channels) {
5820 err = -EINVAL;
5821 goto unlock;
5822 }
2a519311 5823 } else {
bdfbec2d 5824 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5825 }
5826
5827 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5828 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5829 n_ssids++;
5830
f9f47529
JB		 5831 if (n_ssids > wiphy->max_scan_ssids) {
5832 err = -EINVAL;
5833 goto unlock;
5834 }
2a519311 5835
70692ad2
JM		 5836 if (info->attrs[NL80211_ATTR_IE])
5837 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5838 else
5839 ie_len = 0;
5840
f9f47529
JB		 5841 if (ie_len > wiphy->max_scan_ie_len) {
5842 err = -EINVAL;
5843 goto unlock;
5844 }
18a83659 5845
2a519311 5846 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5847 + sizeof(*request->ssids) * n_ssids
5848 + sizeof(*request->channels) * n_channels
70692ad2 5849 + ie_len, GFP_KERNEL);
f9f47529
JB		 5850 if (!request) {
5851 err = -ENOMEM;
5852 goto unlock;
5853 }
2a519311 5854
2a519311 5855 if (n_ssids)
5ba63533 5856 request->ssids = (void *)&request->channels[n_channels];
2a519311 5857 request->n_ssids = n_ssids;
70692ad2 5858 if (ie_len) {
13874e4b 5859 if (n_ssids)
70692ad2
JM		 5860 request->ie = (void *)(request->ssids + n_ssids);
5861 else
5862 request->ie = (void *)(request->channels + n_channels);
5863 }
2a519311 5864
584991dc 5865 i = 0;
2a519311
JB		 5866 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5867 /* user specified, bail out if channel not found */
2a519311 5868 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5869 struct ieee80211_channel *chan;
5870
5871 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5872
5873 if (!chan) {
2a519311
JB		 5874 err = -EINVAL;
5875 goto out_free;
5876 }
584991dc
JB		 5877
5878 /* ignore disabled channels */
5879 if (chan->flags & IEEE80211_CHAN_DISABLED)
5880 continue;
5881
5882 request->channels[i] = chan;
2a519311
JB		 5883 i++;
5884 }
5885 } else {
34850ab2
JB		 5886 enum ieee80211_band band;
5887
2a519311 5888 /* all channels */
2a519311
JB		 5889 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5890 int j;
5891 if (!wiphy->bands[band])
5892 continue;
5893 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5894 struct ieee80211_channel *chan;
5895
5896 chan = &wiphy->bands[band]->channels[j];
5897
5898 if (chan->flags & IEEE80211_CHAN_DISABLED)
5899 continue;
5900
5901 request->channels[i] = chan;
2a519311
JB		 5902 i++;
5903 }
5904 }
5905 }
5906
584991dc
JB		 5907 if (!i) {
5908 err = -EINVAL;
5909 goto out_free;
5910 }
5911
5912 request->n_channels = i;
5913
2a519311 5914 i = 0;
13874e4b 5915 if (n_ssids) {
2a519311 5916 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5917 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5918 err = -EINVAL;
5919 goto out_free;
5920 }
57a27e1d 5921 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5922 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5923 i++;
5924 }
5925 }
5926
70692ad2
JM		 5927 if (info->attrs[NL80211_ATTR_IE]) {
5928 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5929 memcpy((void *)request->ie,
5930 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5931 request->ie_len);
5932 }
5933
34850ab2 5934 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5935 if (wiphy->bands[i])
5936 request->rates[i] =
5937 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5938
5939 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5940 nla_for_each_nested(attr,
5941 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5942 tmp) {
5943 enum ieee80211_band band = nla_type(attr);
5944
84404623 5945 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5946 err = -EINVAL;
5947 goto out_free;
5948 }
1b09cd82
FF		 5949
5950 if (!wiphy->bands[band])
5951 continue;
5952
34850ab2
JB		 5953 err = ieee80211_get_ratemask(wiphy->bands[band],
5954 nla_data(attr),
5955 nla_len(attr),
5956 &request->rates[band]);
5957 if (err)
5958 goto out_free;
5959 }
5960 }
5961
46856bbf 5962 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5963 request->flags = nla_get_u32(
5964 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5965 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5966 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5967 err = -EOPNOTSUPP;
5968 goto out_free;
5969 }
ad2b26ab
JB		 5970
5971 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5972 if (!(wiphy->features &
5973 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5974 err = -EOPNOTSUPP;
5975 goto out_free;
5976 }
5977
5978 if (wdev->current_bss) {
5979 err = -EOPNOTSUPP;
5980 goto out_free;
5981 }
5982
5983 err = nl80211_parse_random_mac(info->attrs,
5984 request->mac_addr,
5985 request->mac_addr_mask);
5986 if (err)
5987 goto out_free;
5988 }
46856bbf 5989 }
ed473771 5990
e9f935e3
RM		 5991 request->no_cck =
5992 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5993
fd014284 5994 request->wdev = wdev;
79c97e97 5995 request->wiphy = &rdev->wiphy;
15d6030b 5996 request->scan_start = jiffies;
2a519311 5997
79c97e97 5998 rdev->scan_req = request;
e35e4d28 5999 err = rdev_scan(rdev, request);
2a519311 6000
463d0183 6001 if (!err) {
fd014284
JB		 6002 nl80211_send_scan_start(rdev, wdev);
6003 if (wdev->netdev)
6004 dev_hold(wdev->netdev);
4c476991 6005 } else {
2a519311 6006 out_free:
79c97e97 6007 rdev->scan_req = NULL;
2a519311
JB		 6008 kfree(request);
6009 }
3b85875a 6010
f9f47529 6011 unlock:
2a519311
JB		 6012 return err;
6013}
6014
91d3ab46
VK		 6015static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6016{
6017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6018 struct wireless_dev *wdev = info->user_ptr[1];
6019
6020 if (!rdev->ops->abort_scan)
6021 return -EOPNOTSUPP;
6022
6023 if (rdev->scan_msg)
6024 return 0;
6025
6026 if (!rdev->scan_req)
6027 return -ENOENT;
6028
6029 rdev_abort_scan(rdev, wdev);
6030 return 0;
6031}
6032
3b06d277
AS		 6033static int
6034nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6035 struct cfg80211_sched_scan_request *request,
6036 struct nlattr **attrs)
6037{
6038 int tmp, err, i = 0;
6039 struct nlattr *attr;
6040
6041 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6042 u32 interval;
6043
6044 /*
6045 * If scan plans are not specified,
6046 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6047 * case one scan plan will be set with the specified scan
6048 * interval and infinite number of iterations.
6049 */
6050 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6051 return -EINVAL;
6052
6053 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6054 if (!interval)
6055 return -EINVAL;
6056
6057 request->scan_plans[0].interval =
6058 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6059 if (!request->scan_plans[0].interval)
6060 return -EINVAL;
6061
6062 if (request->scan_plans[0].interval >
6063 wiphy->max_sched_scan_plan_interval)
6064 request->scan_plans[0].interval =
6065 wiphy->max_sched_scan_plan_interval;
6066
6067 return 0;
6068 }
6069
6070 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6071 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6072
6073 if (WARN_ON(i >= n_plans))
6074 return -EINVAL;
6075
6076 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6077 nla_data(attr), nla_len(attr),
6078 nl80211_plan_policy);
6079 if (err)
6080 return err;
6081
6082 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6083 return -EINVAL;
6084
6085 request->scan_plans[i].interval =
6086 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6087 if (!request->scan_plans[i].interval ||
6088 request->scan_plans[i].interval >
6089 wiphy->max_sched_scan_plan_interval)
6090 return -EINVAL;
6091
6092 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6093 request->scan_plans[i].iterations =
6094 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6095 if (!request->scan_plans[i].iterations ||
6096 (request->scan_plans[i].iterations >
6097 wiphy->max_sched_scan_plan_iterations))
6098 return -EINVAL;
6099 } else if (i < n_plans - 1) {
6100 /*
6101 * All scan plans but the last one must specify
6102 * a finite number of iterations
6103 */
6104 return -EINVAL;
6105 }
6106
6107 i++;
6108 }
6109
6110 /*
6111 * The last scan plan must not specify the number of
6112 * iterations, it is supposed to run infinitely
6113 */
6114 if (request->scan_plans[n_plans - 1].iterations)
6115 return -EINVAL;
6116
6117 return 0;
6118}
6119
256da02d 6120static struct cfg80211_sched_scan_request *
ad2b26ab 6121nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 6122 struct nlattr **attrs)
807f8a8c
LC		 6123{
6124 struct cfg80211_sched_scan_request *request;
807f8a8c 6125 struct nlattr *attr;
3b06d277 6126 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
807f8a8c
LC		 6127 enum ieee80211_band band;
6128 size_t ie_len;
a1f1c21c 6129 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 6130 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 6131
256da02d
LC		 6132 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6133 return ERR_PTR(-EINVAL);
807f8a8c 6134
256da02d 6135 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 6136 n_channels = validate_scan_freqs(
256da02d 6137 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 6138 if (!n_channels)
256da02d 6139 return ERR_PTR(-EINVAL);
807f8a8c 6140 } else {
bdfbec2d 6141 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 6142 }
6143
256da02d
LC		 6144 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6145 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 6146 tmp)
6147 n_ssids++;
6148
93b6aa69 6149 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 6150 return ERR_PTR(-EINVAL);
807f8a8c 6151
ea73cbce
JB		 6152 /*
6153 * First, count the number of 'real' matchsets. Due to an issue with
6154 * the old implementation, matchsets containing only the RSSI attribute
6155 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6156 * RSSI for all matchsets, rather than their own matchset for reporting
6157 * all APs with a strong RSSI. This is needed to be compatible with
6158 * older userspace that treated a matchset with only the RSSI as the
6159 * global RSSI for all other matchsets - if there are other matchsets.
6160 */
256da02d 6161 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6162 nla_for_each_nested(attr,
256da02d 6163 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6164 tmp) {
6165 struct nlattr *rssi;
6166
6167 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6168 nla_data(attr), nla_len(attr),
6169 nl80211_match_policy);
6170 if (err)
256da02d 6171 return ERR_PTR(err);
ea73cbce
JB		 6172 /* add other standalone attributes here */
6173 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6174 n_match_sets++;
6175 continue;
6176 }
6177 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6178 if (rssi)
6179 default_match_rssi = nla_get_s32(rssi);
6180 }
6181 }
6182
6183 /* However, if there's no other matchset, add the RSSI one */
6184 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6185 n_match_sets = 1;
a1f1c21c
LC		 6186
6187 if (n_match_sets > wiphy->max_match_sets)
256da02d 6188 return ERR_PTR(-EINVAL);
a1f1c21c 6189
256da02d
LC		 6190 if (attrs[NL80211_ATTR_IE])
6191 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6192 else
6193 ie_len = 0;
6194
5a865bad 6195 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6196 return ERR_PTR(-EINVAL);
c10841ca 6197
3b06d277
AS		 6198 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6199 /*
6200 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6201 * each scan plan already specifies its own interval
6202 */
6203 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6204 return ERR_PTR(-EINVAL);
6205
6206 nla_for_each_nested(attr,
6207 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6208 n_plans++;
6209 } else {
6210 /*
6211 * The scan interval attribute is kept for backward
6212 * compatibility. If no scan plans are specified and sched scan
6213 * interval is specified, one scan plan will be set with this
6214 * scan interval and infinite number of iterations.
6215 */
6216 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6217 return ERR_PTR(-EINVAL);
6218
6219 n_plans = 1;
6220 }
6221
6222 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6223 return ERR_PTR(-EINVAL);
6224
807f8a8c 6225 request = kzalloc(sizeof(*request)
a2cd43c5 6226 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6227 + sizeof(*request->match_sets) * n_match_sets
3b06d277 6228 + sizeof(*request->scan_plans) * n_plans
a2cd43c5 6229 + sizeof(*request->channels) * n_channels
807f8a8c 6230 + ie_len, GFP_KERNEL);
256da02d
LC		 6231 if (!request)
6232 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6233
6234 if (n_ssids)
6235 request->ssids = (void *)&request->channels[n_channels];
6236 request->n_ssids = n_ssids;
6237 if (ie_len) {
13874e4b 6238 if (n_ssids)
807f8a8c
LC		 6239 request->ie = (void *)(request->ssids + n_ssids);
6240 else
6241 request->ie = (void *)(request->channels + n_channels);
6242 }
6243
a1f1c21c
LC		 6244 if (n_match_sets) {
6245 if (request->ie)
6246 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6247 else if (n_ssids)
a1f1c21c
LC		 6248 request->match_sets =
6249 (void *)(request->ssids + n_ssids);
6250 else
6251 request->match_sets =
6252 (void *)(request->channels + n_channels);
6253 }
6254 request->n_match_sets = n_match_sets;
6255
3b06d277
AS		 6256 if (n_match_sets)
6257 request->scan_plans = (void *)(request->match_sets +
6258 n_match_sets);
6259 else if (request->ie)
6260 request->scan_plans = (void *)(request->ie + ie_len);
6261 else if (n_ssids)
6262 request->scan_plans = (void *)(request->ssids + n_ssids);
6263 else
6264 request->scan_plans = (void *)(request->channels + n_channels);
6265
6266 request->n_scan_plans = n_plans;
6267
807f8a8c 6268 i = 0;
256da02d 6269 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6270 /* user specified, bail out if channel not found */
6271 nla_for_each_nested(attr,
256da02d 6272 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6273 tmp) {
6274 struct ieee80211_channel *chan;
6275
6276 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6277
6278 if (!chan) {
6279 err = -EINVAL;
6280 goto out_free;
6281 }
6282
6283 /* ignore disabled channels */
6284 if (chan->flags & IEEE80211_CHAN_DISABLED)
6285 continue;
6286
6287 request->channels[i] = chan;
6288 i++;
6289 }
6290 } else {
6291 /* all channels */
6292 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6293 int j;
6294 if (!wiphy->bands[band])
6295 continue;
6296 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6297 struct ieee80211_channel *chan;
6298
6299 chan = &wiphy->bands[band]->channels[j];
6300
6301 if (chan->flags & IEEE80211_CHAN_DISABLED)
6302 continue;
6303
6304 request->channels[i] = chan;
6305 i++;
6306 }
6307 }
6308 }
6309
6310 if (!i) {
6311 err = -EINVAL;
6312 goto out_free;
6313 }
6314
6315 request->n_channels = i;
6316
6317 i = 0;
13874e4b 6318 if (n_ssids) {
256da02d 6319 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6320 tmp) {
57a27e1d 6321 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6322 err = -EINVAL;
6323 goto out_free;
6324 }
57a27e1d 6325 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6326 memcpy(request->ssids[i].ssid, nla_data(attr),
6327 nla_len(attr));
807f8a8c
LC		 6328 i++;
6329 }
6330 }
6331
a1f1c21c 6332 i = 0;
256da02d 6333 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6334 nla_for_each_nested(attr,
256da02d 6335 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6336 tmp) {
88e920b4 6337 struct nlattr *ssid, *rssi;
a1f1c21c 6338
ae811e21
JB		 6339 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6340 nla_data(attr), nla_len(attr),
6341 nl80211_match_policy);
6342 if (err)
6343 goto out_free;
4a4ab0d7 6344 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6345 if (ssid) {
ea73cbce
JB		 6346 if (WARN_ON(i >= n_match_sets)) {
6347 /* this indicates a programming error,
6348 * the loop above should have verified
6349 * things properly
6350 */
6351 err = -EINVAL;
6352 goto out_free;
6353 }
6354
a1f1c21c
LC		 6355 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6356 err = -EINVAL;
6357 goto out_free;
6358 }
6359 memcpy(request->match_sets[i].ssid.ssid,
6360 nla_data(ssid), nla_len(ssid));
6361 request->match_sets[i].ssid.ssid_len =
6362 nla_len(ssid);
ea73cbce
JB		 6363 /* special attribute - old implemenation w/a */
6364 request->match_sets[i].rssi_thold =
6365 default_match_rssi;
6366 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6367 if (rssi)
6368 request->match_sets[i].rssi_thold =
6369 nla_get_s32(rssi);
a1f1c21c
LC		 6370 }
6371 i++;
6372 }
ea73cbce
JB		 6373
6374 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6375 if (i == 0 && n_match_sets)
ea73cbce
JB		 6376 request->match_sets[0].rssi_thold = default_match_rssi;
6377
6378 request->min_rssi_thold = INT_MAX;
6379 for (i = 0; i < n_match_sets; i++)
6380 request->min_rssi_thold =
6381 min(request->match_sets[i].rssi_thold,
6382 request->min_rssi_thold);
6383 } else {
6384 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6385 }
6386
9900e484
JB		 6387 if (ie_len) {
6388 request->ie_len = ie_len;
807f8a8c 6389 memcpy((void *)request->ie,
256da02d 6390 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6391 request->ie_len);
6392 }
6393
256da02d 6394 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6395 request->flags = nla_get_u32(
256da02d 6396 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6397 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6398 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6399 err = -EOPNOTSUPP;
6400 goto out_free;
6401 }
ad2b26ab
JB		 6402
6403 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6404 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6405
6406 if (!wdev) /* must be net-detect */
6407 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6408
6409 if (!(wiphy->features & flg)) {
6410 err = -EOPNOTSUPP;
6411 goto out_free;
6412 }
6413
6414 if (wdev && wdev->current_bss) {
6415 err = -EOPNOTSUPP;
6416 goto out_free;
6417 }
6418
6419 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6420 request->mac_addr_mask);
6421 if (err)
6422 goto out_free;
6423 }
46856bbf 6424 }
ed473771 6425
9c748934
LC		 6426 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6427 request->delay =
6428 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6429
3b06d277
AS		 6430 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6431 if (err)
6432 goto out_free;
6433
15d6030b 6434 request->scan_start = jiffies;
807f8a8c 6435
256da02d 6436 return request;
807f8a8c
LC		 6437
6438out_free:
6439 kfree(request);
256da02d
LC		 6440 return ERR_PTR(err);
6441}
6442
6443static int nl80211_start_sched_scan(struct sk_buff *skb,
6444 struct genl_info *info)
6445{
6446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6447 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6448 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6449 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6450 int err;
6451
6452 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6453 !rdev->ops->sched_scan_start)
6454 return -EOPNOTSUPP;
6455
6456 if (rdev->sched_scan_req)
6457 return -EINPROGRESS;
6458
31a60ed1
JR		 6459 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6460 info->attrs);
6461
6462 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6463 if (err)
6464 goto out_err;
6465
31a60ed1 6466 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6467 if (err)
6468 goto out_free;
6469
31a60ed1
JR		 6470 sched_scan_req->dev = dev;
6471 sched_scan_req->wiphy = &rdev->wiphy;
6472
93a1e86c
JR		 6473 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6474 sched_scan_req->owner_nlportid = info->snd_portid;
6475
31a60ed1 6476 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6477
6478 nl80211_send_sched_scan(rdev, dev,
6479 NL80211_CMD_START_SCHED_SCAN);
6480 return 0;
6481
6482out_free:
31a60ed1 6483 kfree(sched_scan_req);
256da02d 6484out_err:
807f8a8c
LC		 6485 return err;
6486}
6487
6488static int nl80211_stop_sched_scan(struct sk_buff *skb,
6489 struct genl_info *info)
6490{
6491 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6492
6493 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6494 !rdev->ops->sched_scan_stop)
6495 return -EOPNOTSUPP;
6496
5fe231e8 6497 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6498}
6499
04f39047
SW		 6500static int nl80211_start_radar_detection(struct sk_buff *skb,
6501 struct genl_info *info)
6502{
6503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6504 struct net_device *dev = info->user_ptr[1];
6505 struct wireless_dev *wdev = dev->ieee80211_ptr;
6506 struct cfg80211_chan_def chandef;
55f7435c 6507 enum nl80211_dfs_regions dfs_region;
31559f35 6508 unsigned int cac_time_ms;
04f39047
SW		 6509 int err;
6510
55f7435c
LR		 6511 dfs_region = reg_get_dfs_region(wdev->wiphy);
6512 if (dfs_region == NL80211_DFS_UNSET)
6513 return -EINVAL;
6514
04f39047
SW		 6515 err = nl80211_parse_chandef(rdev, info, &chandef);
6516 if (err)
6517 return err;
6518
ff311bc1
SW		 6519 if (netif_carrier_ok(dev))
6520 return -EBUSY;
6521
04f39047
SW		 6522 if (wdev->cac_started)
6523 return -EBUSY;
6524
2beb6dab 6525 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6526 wdev->iftype);
04f39047
SW		 6527 if (err < 0)
6528 return err;
6529
6530 if (err == 0)
6531 return -EINVAL;
6532
fe7c3a1f 6533 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6534 return -EINVAL;
6535
6536 if (!rdev->ops->start_radar_detection)
6537 return -EOPNOTSUPP;
6538
31559f35
JD		 6539 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6540 if (WARN_ON(!cac_time_ms))
6541 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6542
a1056b1b 6543 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
04f39047 6544 if (!err) {
9e0e2961 6545 wdev->chandef = chandef;
04f39047
SW		 6546 wdev->cac_started = true;
6547 wdev->cac_start_time = jiffies;
31559f35 6548 wdev->cac_time_ms = cac_time_ms;
04f39047 6549 }
04f39047
SW		 6550 return err;
6551}
6552
16ef1fe2
SW		 6553static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6554{
6555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6556 struct net_device *dev = info->user_ptr[1];
6557 struct wireless_dev *wdev = dev->ieee80211_ptr;
6558 struct cfg80211_csa_settings params;
6559 /* csa_attrs is defined static to avoid waste of stack size - this
6560 * function is called under RTNL lock, so this should not be a problem.
6561 */
6562 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6563 int err;
ee4bc9e7 6564 bool need_new_beacon = false;
9a774c78 6565 int len, i;
252e07ca 6566 u32 cs_count;
16ef1fe2
SW		 6567
6568 if (!rdev->ops->channel_switch ||
6569 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6570 return -EOPNOTSUPP;
6571
ee4bc9e7
SW		 6572 switch (dev->ieee80211_ptr->iftype) {
6573 case NL80211_IFTYPE_AP:
6574 case NL80211_IFTYPE_P2P_GO:
6575 need_new_beacon = true;
6576
6577 /* useless if AP is not running */
6578 if (!wdev->beacon_interval)
1ff79dfa 6579 return -ENOTCONN;
ee4bc9e7
SW		 6580 break;
6581 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6582 if (!wdev->ssid_len)
6583 return -ENOTCONN;
6584 break;
c6da674a 6585 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6586 if (!wdev->mesh_id_len)
6587 return -ENOTCONN;
ee4bc9e7
SW		 6588 break;
6589 default:
16ef1fe2 6590 return -EOPNOTSUPP;
ee4bc9e7 6591 }
16ef1fe2
SW		 6592
6593 memset(&params, 0, sizeof(params));
6594
6595 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6596 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6597 return -EINVAL;
6598
6599 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6600 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6601 return -EINVAL;
6602
252e07ca
LC		 6603 /* Even though the attribute is u32, the specification says
6604 * u8, so let's make sure we don't overflow.
6605 */
6606 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6607 if (cs_count > 255)
6608 return -EINVAL;
6609
6610 params.count = cs_count;
16ef1fe2 6611
ee4bc9e7
SW		 6612 if (!need_new_beacon)
6613 goto skip_beacons;
6614
16ef1fe2
SW		 6615 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6616 if (err)
6617 return err;
6618
6619 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6620 info->attrs[NL80211_ATTR_CSA_IES],
6621 nl80211_policy);
6622 if (err)
6623 return err;
6624
6625 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6626 if (err)
6627 return err;
6628
6629 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6630 return -EINVAL;
6631
9a774c78
AO		 6632 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6633 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6634 return -EINVAL;
6635
9a774c78
AO		 6636 params.n_counter_offsets_beacon = len / sizeof(u16);
6637 if (rdev->wiphy.max_num_csa_counters &&
6638 (params.n_counter_offsets_beacon >
6639 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6640 return -EINVAL;
6641
9a774c78
AO		 6642 params.counter_offsets_beacon =
6643 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6644
6645 /* sanity checks - counters should fit and be the same */
6646 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6647 u16 offset = params.counter_offsets_beacon[i];
6648
6649 if (offset >= params.beacon_csa.tail_len)
6650 return -EINVAL;
6651
6652 if (params.beacon_csa.tail[offset] != params.count)
6653 return -EINVAL;
6654 }
6655
16ef1fe2 6656 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6657 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6658 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6659 return -EINVAL;
6660
9a774c78
AO		 6661 params.n_counter_offsets_presp = len / sizeof(u16);
6662 if (rdev->wiphy.max_num_csa_counters &&
6663 (params.n_counter_offsets_beacon >
6664 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6665 return -EINVAL;
9a774c78
AO		 6666
6667 params.counter_offsets_presp =
6668 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6669
6670 /* sanity checks - counters should fit and be the same */
6671 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6672 u16 offset = params.counter_offsets_presp[i];
6673
6674 if (offset >= params.beacon_csa.probe_resp_len)
6675 return -EINVAL;
6676
6677 if (params.beacon_csa.probe_resp[offset] !=
6678 params.count)
6679 return -EINVAL;
6680 }
16ef1fe2
SW		 6681 }
6682
ee4bc9e7 6683skip_beacons:
16ef1fe2
SW		 6684 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6685 if (err)
6686 return err;
6687
923b352f
AN		 6688 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &params.chandef,
6689 wdev->iftype))
16ef1fe2
SW		 6690 return -EINVAL;
6691
2beb6dab
LC		 6692 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6693 &params.chandef,
6694 wdev->iftype);
6695 if (err < 0)
6696 return err;
6697
dcc6c2f5 6698 if (err > 0)
2beb6dab 6699 params.radar_required = true;
16ef1fe2 6700
16ef1fe2
SW		 6701 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6702 params.block_tx = true;
6703
c56589ed
SW		 6704 wdev_lock(wdev);
6705 err = rdev_channel_switch(rdev, dev, &params);
6706 wdev_unlock(wdev);
6707
6708 return err;
16ef1fe2
SW		 6709}
6710
9720bb3a
JB		 6711static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6712 u32 seq, int flags,
2a519311 6713 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6714 struct wireless_dev *wdev,
6715 struct cfg80211_internal_bss *intbss)
2a519311 6716{
48ab905d 6717 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6718 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6719 void *hdr;
6720 struct nlattr *bss;
48ab905d
JB		 6721
6722 ASSERT_WDEV_LOCK(wdev);
2a519311 6723
15e47304 6724 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6725 NL80211_CMD_NEW_SCAN_RESULTS);
6726 if (!hdr)
6727 return -1;
6728
9720bb3a
JB		 6729 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6730
97990a06
JB		 6731 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6732 goto nla_put_failure;
6733 if (wdev->netdev &&
9360ffd1
DM		 6734 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6735 goto nla_put_failure;
97990a06
JB		 6736 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6737 goto nla_put_failure;
2a519311
JB		 6738
6739 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6740 if (!bss)
6741 goto nla_put_failure;
9360ffd1 6742 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6743 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6744 goto nla_put_failure;
9caf0364
JB		 6745
6746 rcu_read_lock();
0e227084
JB		 6747 /* indicate whether we have probe response data or not */
6748 if (rcu_access_pointer(res->proberesp_ies) &&
6749 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6750 goto fail_unlock_rcu;
6751
6752 /* this pointer prefers to be pointed to probe response data
6753 * but is always valid
6754 */
9caf0364 6755 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6756 if (ies) {
6757 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6758 goto fail_unlock_rcu;
8cef2c9d
JB		 6759 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6760 ies->len, ies->data))
6761 goto fail_unlock_rcu;
9caf0364 6762 }
0e227084
JB		 6763
6764 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6765 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6766 if (ies && ies->from_beacon) {
6767 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6768 goto fail_unlock_rcu;
6769 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6770 ies->len, ies->data))
6771 goto fail_unlock_rcu;
9caf0364
JB		 6772 }
6773 rcu_read_unlock();
6774
9360ffd1
DM		 6775 if (res->beacon_interval &&
6776 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6777 goto nla_put_failure;
6778 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6779 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6780 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6781 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6782 jiffies_to_msecs(jiffies - intbss->ts)))
6783 goto nla_put_failure;
2a519311 6784
6e19bc4b
DS		 6785 if (intbss->ts_boottime &&
6786 nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
6787 intbss->ts_boottime))
6788 goto nla_put_failure;
6789
77965c97 6790 switch (rdev->wiphy.signal_type) {
2a519311 6791 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6792 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6793 goto nla_put_failure;
2a519311
JB		 6794 break;
6795 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6796 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6797 goto nla_put_failure;
2a519311
JB		 6798 break;
6799 default:
6800 break;
6801 }
6802
48ab905d 6803 switch (wdev->iftype) {
074ac8df 6804 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6805 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6806 if (intbss == wdev->current_bss &&
6807 nla_put_u32(msg, NL80211_BSS_STATUS,
6808 NL80211_BSS_STATUS_ASSOCIATED))
6809 goto nla_put_failure;
48ab905d
JB		 6810 break;
6811 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6812 if (intbss == wdev->current_bss &&
6813 nla_put_u32(msg, NL80211_BSS_STATUS,
6814 NL80211_BSS_STATUS_IBSS_JOINED))
6815 goto nla_put_failure;
48ab905d
JB		 6816 break;
6817 default:
6818 break;
6819 }
6820
2a519311
JB		 6821 nla_nest_end(msg, bss);
6822
053c095a
JB		 6823 genlmsg_end(msg, hdr);
6824 return 0;
2a519311 6825
8cef2c9d
JB		 6826 fail_unlock_rcu:
6827 rcu_read_unlock();
2a519311
JB		 6828 nla_put_failure:
6829 genlmsg_cancel(msg, hdr);
6830 return -EMSGSIZE;
6831}
6832
97990a06 6833static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6834{
48ab905d 6835 struct cfg80211_registered_device *rdev;
2a519311 6836 struct cfg80211_internal_bss *scan;
48ab905d 6837 struct wireless_dev *wdev;
97990a06 6838 int start = cb->args[2], idx = 0;
2a519311
JB		 6839 int err;
6840
97990a06 6841 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6842 if (err)
6843 return err;
2a519311 6844
48ab905d
JB		 6845 wdev_lock(wdev);
6846 spin_lock_bh(&rdev->bss_lock);
6847 cfg80211_bss_expire(rdev);
6848
9720bb3a
JB		 6849 cb->seq = rdev->bss_generation;
6850
48ab905d 6851 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6852 if (++idx <= start)
6853 continue;
9720bb3a 6854 if (nl80211_send_bss(skb, cb,
2a519311 6855 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6856 rdev, wdev, scan) < 0) {
2a519311 6857 idx--;
67748893 6858 break;
2a519311
JB		 6859 }
6860 }
6861
48ab905d
JB		 6862 spin_unlock_bh(&rdev->bss_lock);
6863 wdev_unlock(wdev);
2a519311 6864
97990a06
JB		 6865 cb->args[2] = idx;
6866 nl80211_finish_wdev_dump(rdev);
2a519311 6867
67748893 6868 return skb->len;
2a519311
JB		 6869}
6870
15e47304 6871static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 6872 int flags, struct net_device *dev,
6873 bool allow_radio_stats,
6874 struct survey_info *survey)
61fa713c
HS		 6875{
6876 void *hdr;
6877 struct nlattr *infoattr;
6878
11f78ac3
JB		 6879 /* skip radio stats if userspace didn't request them */
6880 if (!survey->channel && !allow_radio_stats)
6881 return 0;
6882
15e47304 6883 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6884 NL80211_CMD_NEW_SURVEY_RESULTS);
6885 if (!hdr)
6886 return -ENOMEM;
6887
9360ffd1
DM		 6888 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6889 goto nla_put_failure;
61fa713c
HS		 6890
6891 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6892 if (!infoattr)
6893 goto nla_put_failure;
6894
11f78ac3
JB		 6895 if (survey->channel &&
6896 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 6897 survey->channel->center_freq))
6898 goto nla_put_failure;
6899
6900 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6901 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6902 goto nla_put_failure;
6903 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6904 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6905 goto nla_put_failure;
4ed20beb
JB		 6906 if ((survey->filled & SURVEY_INFO_TIME) &&
6907 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6908 survey->time))
9360ffd1 6909 goto nla_put_failure;
4ed20beb
JB		 6910 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6911 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6912 survey->time_busy))
9360ffd1 6913 goto nla_put_failure;
4ed20beb
JB		 6914 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6915 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6916 survey->time_ext_busy))
9360ffd1 6917 goto nla_put_failure;
4ed20beb
JB		 6918 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6919 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6920 survey->time_rx))
9360ffd1 6921 goto nla_put_failure;
4ed20beb
JB		 6922 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6923 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6924 survey->time_tx))
9360ffd1 6925 goto nla_put_failure;
052536ab
JB		 6926 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6927 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6928 survey->time_scan))
6929 goto nla_put_failure;
61fa713c
HS		 6930
6931 nla_nest_end(msg, infoattr);
6932
053c095a
JB		 6933 genlmsg_end(msg, hdr);
6934 return 0;
61fa713c
HS		 6935
6936 nla_put_failure:
6937 genlmsg_cancel(msg, hdr);
6938 return -EMSGSIZE;
6939}
6940
11f78ac3 6941static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 6942{
6943 struct survey_info survey;
1b8ec87a 6944 struct cfg80211_registered_device *rdev;
97990a06
JB		 6945 struct wireless_dev *wdev;
6946 int survey_idx = cb->args[2];
61fa713c 6947 int res;
11f78ac3 6948 bool radio_stats;
61fa713c 6949
1b8ec87a 6950 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6951 if (res)
6952 return res;
61fa713c 6953
11f78ac3
JB		 6954 /* prepare_wdev_dump parsed the attributes */
6955 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6956
97990a06
JB		 6957 if (!wdev->netdev) {
6958 res = -EINVAL;
6959 goto out_err;
6960 }
6961
1b8ec87a 6962 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6963 res = -EOPNOTSUPP;
6964 goto out_err;
6965 }
6966
6967 while (1) {
1b8ec87a 6968 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6969 if (res == -ENOENT)
6970 break;
6971 if (res)
6972 goto out_err;
6973
11f78ac3
JB		 6974 /* don't send disabled channels, but do send non-channel data */
6975 if (survey.channel &&
6976 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6977 survey_idx++;
6978 continue;
6979 }
6980
61fa713c 6981 if (nl80211_send_survey(skb,
15e47304 6982 NETLINK_CB(cb->skb).portid,
61fa713c 6983 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 6984 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 6985 goto out;
6986 survey_idx++;
6987 }
6988
6989 out:
97990a06 6990 cb->args[2] = survey_idx;
61fa713c
HS		 6991 res = skb->len;
6992 out_err:
1b8ec87a 6993 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6994 return res;
6995}
6996
b23aa676
SO		 6997static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6998{
6999 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7000 NL80211_WPA_VERSION_2));
7001}
7002
636a5d36
JM		 7003static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7004{
4c476991
JB		 7005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7006 struct net_device *dev = info->user_ptr[1];
19957bb3 7007 struct ieee80211_channel *chan;
e39e5b5e
JM		 7008 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7009 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 7010 enum nl80211_auth_type auth_type;
fffd0934 7011 struct key_parse key;
d5cdfacb 7012 bool local_state_change;
636a5d36 7013
f4a11bb0
JB		 7014 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7015 return -EINVAL;
7016
7017 if (!info->attrs[NL80211_ATTR_MAC])
7018 return -EINVAL;
7019
1778092e
JM		 7020 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7021 return -EINVAL;
7022
19957bb3
JB		 7023 if (!info->attrs[NL80211_ATTR_SSID])
7024 return -EINVAL;
7025
7026 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7027 return -EINVAL;
7028
fffd0934
JB		 7029 err = nl80211_parse_key(info, &key);
7030 if (err)
7031 return err;
7032
7033 if (key.idx >= 0) {
e31b8213
JB		 7034 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7035 return -EINVAL;
fffd0934
JB		 7036 if (!key.p.key || !key.p.key_len)
7037 return -EINVAL;
7038 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7039 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7040 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7041 key.p.key_len != WLAN_KEY_LEN_WEP104))
7042 return -EINVAL;
7043 if (key.idx > 4)
7044 return -EINVAL;
7045 } else {
7046 key.p.key_len = 0;
7047 key.p.key = NULL;
7048 }
7049
afea0b7a
JB		 7050 if (key.idx >= 0) {
7051 int i;
7052 bool ok = false;
7053 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7054 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7055 ok = true;
7056 break;
7057 }
7058 }
4c476991
JB		 7059 if (!ok)
7060 return -EINVAL;
afea0b7a
JB		 7061 }
7062
4c476991
JB		 7063 if (!rdev->ops->auth)
7064 return -EOPNOTSUPP;
636a5d36 7065
074ac8df 7066 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7067 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7068 return -EOPNOTSUPP;
eec60b03 7069
19957bb3 7070 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 7071 chan = nl80211_get_valid_chan(&rdev->wiphy,
7072 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7073 if (!chan)
4c476991 7074 return -EINVAL;
636a5d36 7075
19957bb3
JB		 7076 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7077 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7078
7079 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7080 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7081 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7082 }
7083
19957bb3 7084 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 7085 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 7086 return -EINVAL;
636a5d36 7087
e39e5b5e
JM		 7088 if (auth_type == NL80211_AUTHTYPE_SAE &&
7089 !info->attrs[NL80211_ATTR_SAE_DATA])
7090 return -EINVAL;
7091
7092 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7093 if (auth_type != NL80211_AUTHTYPE_SAE)
7094 return -EINVAL;
7095 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7096 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7097 /* need to include at least Auth Transaction and Status Code */
7098 if (sae_data_len < 4)
7099 return -EINVAL;
7100 }
7101
d5cdfacb
JM		 7102 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7103
95de817b
JB		 7104 /*
7105 * Since we no longer track auth state, ignore
7106 * requests to only change local state.
7107 */
7108 if (local_state_change)
7109 return 0;
7110
91bf9b26
JB		 7111 wdev_lock(dev->ieee80211_ptr);
7112 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7113 ssid, ssid_len, ie, ie_len,
7114 key.p.key, key.p.key_len, key.idx,
7115 sae_data, sae_data_len);
7116 wdev_unlock(dev->ieee80211_ptr);
7117 return err;
636a5d36
JM		 7118}
7119
c0692b8f
JB		 7120static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7121 struct genl_info *info,
3dc27d25
JB		 7122 struct cfg80211_crypto_settings *settings,
7123 int cipher_limit)
b23aa676 7124{
c0b2bbd8
JB		 7125 memset(settings, 0, sizeof(*settings));
7126
b23aa676
SO		 7127 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7128
c0692b8f
JB		 7129 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7130 u16 proto;
7131 proto = nla_get_u16(
7132 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7133 settings->control_port_ethertype = cpu_to_be16(proto);
7134 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7135 proto != ETH_P_PAE)
7136 return -EINVAL;
7137 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7138 settings->control_port_no_encrypt = true;
7139 } else
7140 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7141
b23aa676
SO		 7142 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7143 void *data;
7144 int len, i;
7145
7146 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7147 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7148 settings->n_ciphers_pairwise = len / sizeof(u32);
7149
7150 if (len % sizeof(u32))
7151 return -EINVAL;
7152
3dc27d25 7153 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 7154 return -EINVAL;
7155
7156 memcpy(settings->ciphers_pairwise, data, len);
7157
7158 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 7159 if (!cfg80211_supported_cipher_suite(
7160 &rdev->wiphy,
b23aa676
SO		 7161 settings->ciphers_pairwise[i]))
7162 return -EINVAL;
7163 }
7164
7165 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7166 settings->cipher_group =
7167 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 7168 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7169 settings->cipher_group))
b23aa676
SO		 7170 return -EINVAL;
7171 }
7172
7173 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7174 settings->wpa_versions =
7175 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7176 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7177 return -EINVAL;
7178 }
7179
7180 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7181 void *data;
6d30240e 7182 int len;
b23aa676
SO		 7183
7184 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7185 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7186 settings->n_akm_suites = len / sizeof(u32);
7187
7188 if (len % sizeof(u32))
7189 return -EINVAL;
7190
1b9ca027
JM		 7191 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7192 return -EINVAL;
7193
b23aa676 7194 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 7195 }
7196
7197 return 0;
7198}
7199
636a5d36
JM		 7200static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7201{
4c476991
JB		 7202 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7203 struct net_device *dev = info->user_ptr[1];
f444de05 7204 struct ieee80211_channel *chan;
f62fab73
JB		 7205 struct cfg80211_assoc_request req = {};
7206 const u8 *bssid, *ssid;
7207 int err, ssid_len = 0;
636a5d36 7208
f4a11bb0
JB		 7209 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7210 return -EINVAL;
7211
7212 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7213 !info->attrs[NL80211_ATTR_SSID] ||
7214 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7215 return -EINVAL;
7216
4c476991
JB		 7217 if (!rdev->ops->assoc)
7218 return -EOPNOTSUPP;
636a5d36 7219
074ac8df 7220 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7221 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7222 return -EOPNOTSUPP;
eec60b03 7223
19957bb3 7224 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7225
664834de
JM		 7226 chan = nl80211_get_valid_chan(&rdev->wiphy,
7227 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7228 if (!chan)
4c476991 7229 return -EINVAL;
636a5d36 7230
19957bb3
JB		 7231 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7232 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7233
7234 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7235 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7236 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7237 }
7238
dc6382ce 7239 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7240 enum nl80211_mfp mfp =
dc6382ce 7241 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7242 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7243 req.use_mfp = true;
4c476991
JB		 7244 else if (mfp != NL80211_MFP_NO)
7245 return -EINVAL;
dc6382ce
JM		 7246 }
7247
3e5d7649 7248 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7249 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7250
7e7c8926 7251 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7252 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7253
7254 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7255 memcpy(&req.ht_capa_mask,
7256 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7257 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7258
7259 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7260 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7261 return -EINVAL;
f62fab73
JB		 7262 memcpy(&req.ht_capa,
7263 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7264 sizeof(req.ht_capa));
7e7c8926
BG		 7265 }
7266
ee2aca34 7267 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7268 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7269
7270 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7271 memcpy(&req.vht_capa_mask,
7272 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7273 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7274
7275 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7276 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7277 return -EINVAL;
f62fab73
JB		 7278 memcpy(&req.vht_capa,
7279 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7280 sizeof(req.vht_capa));
ee2aca34
JB		 7281 }
7282
bab5ab7d
AK		 7283 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7284 if (!(rdev->wiphy.features &
7285 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7286 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7287 return -EINVAL;
7288 req.flags |= ASSOC_REQ_USE_RRM;
7289 }
7290
f62fab73 7291 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7292 if (!err) {
7293 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7294 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7295 ssid, ssid_len, &req);
91bf9b26
JB		 7296 wdev_unlock(dev->ieee80211_ptr);
7297 }
636a5d36 7298
636a5d36
JM		 7299 return err;
7300}
7301
7302static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7303{
4c476991
JB		 7304 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7305 struct net_device *dev = info->user_ptr[1];
19957bb3 7306 const u8 *ie = NULL, *bssid;
91bf9b26 7307 int ie_len = 0, err;
19957bb3 7308 u16 reason_code;
d5cdfacb 7309 bool local_state_change;
636a5d36 7310
f4a11bb0
JB		 7311 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7312 return -EINVAL;
7313
7314 if (!info->attrs[NL80211_ATTR_MAC])
7315 return -EINVAL;
7316
7317 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7318 return -EINVAL;
7319
4c476991
JB		 7320 if (!rdev->ops->deauth)
7321 return -EOPNOTSUPP;
636a5d36 7322
074ac8df 7323 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7324 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7325 return -EOPNOTSUPP;
eec60b03 7326
19957bb3 7327 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7328
19957bb3
JB		 7329 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7330 if (reason_code == 0) {
f4a11bb0 7331 /* Reason Code 0 is reserved */
4c476991 7332 return -EINVAL;
255e737e 7333 }
636a5d36
JM		 7334
7335 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7336 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7337 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7338 }
7339
d5cdfacb
JM		 7340 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7341
91bf9b26
JB		 7342 wdev_lock(dev->ieee80211_ptr);
7343 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7344 local_state_change);
7345 wdev_unlock(dev->ieee80211_ptr);
7346 return err;
636a5d36
JM		 7347}
7348
7349static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7350{
4c476991
JB		 7351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7352 struct net_device *dev = info->user_ptr[1];
19957bb3 7353 const u8 *ie = NULL, *bssid;
91bf9b26 7354 int ie_len = 0, err;
19957bb3 7355 u16 reason_code;
d5cdfacb 7356 bool local_state_change;
636a5d36 7357
f4a11bb0
JB		 7358 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7359 return -EINVAL;
7360
7361 if (!info->attrs[NL80211_ATTR_MAC])
7362 return -EINVAL;
7363
7364 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7365 return -EINVAL;
7366
4c476991
JB		 7367 if (!rdev->ops->disassoc)
7368 return -EOPNOTSUPP;
636a5d36 7369
074ac8df 7370 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7371 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7372 return -EOPNOTSUPP;
eec60b03 7373
19957bb3 7374 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7375
19957bb3
JB		 7376 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7377 if (reason_code == 0) {
f4a11bb0 7378 /* Reason Code 0 is reserved */
4c476991 7379 return -EINVAL;
255e737e 7380 }
636a5d36
JM		 7381
7382 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7383 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7384 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7385 }
7386
d5cdfacb
JM		 7387 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7388
91bf9b26
JB		 7389 wdev_lock(dev->ieee80211_ptr);
7390 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7391 local_state_change);
7392 wdev_unlock(dev->ieee80211_ptr);
7393 return err;
636a5d36
JM		 7394}
7395
dd5b4cc7
FF		 7396static bool
7397nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7398 int mcast_rate[IEEE80211_NUM_BANDS],
7399 int rateval)
7400{
7401 struct wiphy *wiphy = &rdev->wiphy;
7402 bool found = false;
7403 int band, i;
7404
7405 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7406 struct ieee80211_supported_band *sband;
7407
7408 sband = wiphy->bands[band];
7409 if (!sband)
7410 continue;
7411
7412 for (i = 0; i < sband->n_bitrates; i++) {
7413 if (sband->bitrates[i].bitrate == rateval) {
7414 mcast_rate[band] = i + 1;
7415 found = true;
7416 break;
7417 }
7418 }
7419 }
7420
7421 return found;
7422}
7423
04a773ad
JB		 7424static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7425{
4c476991
JB		 7426 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7427 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7428 struct cfg80211_ibss_params ibss;
7429 struct wiphy *wiphy;
fffd0934 7430 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7431 int err;
7432
8e30bc55
JB		 7433 memset(&ibss, 0, sizeof(ibss));
7434
04a773ad
JB		 7435 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7436 return -EINVAL;
7437
683b6d3b 7438 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7439 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7440 return -EINVAL;
7441
8e30bc55
JB		 7442 ibss.beacon_interval = 100;
7443
7444 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7445 ibss.beacon_interval =
7446 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7447 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7448 return -EINVAL;
7449 }
7450
4c476991
JB		 7451 if (!rdev->ops->join_ibss)
7452 return -EOPNOTSUPP;
04a773ad 7453
4c476991
JB		 7454 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7455 return -EOPNOTSUPP;
04a773ad 7456
79c97e97 7457 wiphy = &rdev->wiphy;
04a773ad 7458
39193498 7459 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7460 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7461
7462 if (!is_valid_ether_addr(ibss.bssid))
7463 return -EINVAL;
7464 }
04a773ad
JB		 7465 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7466 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7467
7468 if (info->attrs[NL80211_ATTR_IE]) {
7469 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7470 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7471 }
7472
683b6d3b
JB		 7473 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7474 if (err)
7475 return err;
04a773ad 7476
174e0cd2
IP		 7477 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7478 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7479 return -EINVAL;
7480
2f301ab2 7481 switch (ibss.chandef.width) {
bf372645
SW		 7482 case NL80211_CHAN_WIDTH_5:
7483 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7484 case NL80211_CHAN_WIDTH_20_NOHT:
7485 break;
7486 case NL80211_CHAN_WIDTH_20:
7487 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7488 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7489 return -EINVAL;
7490 break;
7491 case NL80211_CHAN_WIDTH_80:
7492 case NL80211_CHAN_WIDTH_80P80:
7493 case NL80211_CHAN_WIDTH_160:
7494 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7495 return -EINVAL;
7496 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7497 NL80211_EXT_FEATURE_VHT_IBSS))
7498 return -EINVAL;
7499 break;
2f301ab2 7500 default:
c04d6150 7501 return -EINVAL;
2f301ab2 7502 }
db9c64cf 7503
04a773ad 7504 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7505 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7506
fbd2c8dc
TP		 7507 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7508 u8 *rates =
7509 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7510 int n_rates =
7511 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7512 struct ieee80211_supported_band *sband =
683b6d3b 7513 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7514
34850ab2
JB		 7515 err = ieee80211_get_ratemask(sband, rates, n_rates,
7516 &ibss.basic_rates);
7517 if (err)
7518 return err;
fbd2c8dc 7519 }
dd5b4cc7 7520
803768f5
SW		 7521 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7522 memcpy(&ibss.ht_capa_mask,
7523 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7524 sizeof(ibss.ht_capa_mask));
7525
7526 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7527 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7528 return -EINVAL;
7529 memcpy(&ibss.ht_capa,
7530 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7531 sizeof(ibss.ht_capa));
7532 }
7533
dd5b4cc7
FF		 7534 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7535 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7536 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7537 return -EINVAL;
fbd2c8dc 7538
4c476991 7539 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7540 bool no_ht = false;
7541
4c476991 7542 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7543 info->attrs[NL80211_ATTR_KEYS],
7544 &no_ht);
4c476991
JB		 7545 if (IS_ERR(connkeys))
7546 return PTR_ERR(connkeys);
de7044ee 7547
3d9d1d66
JB		 7548 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7549 no_ht) {
de7044ee
SM		 7550 kfree(connkeys);
7551 return -EINVAL;
7552 }
4c476991 7553 }
04a773ad 7554
267335d6
AQ		 7555 ibss.control_port =
7556 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7557
5336fa88
SW		 7558 ibss.userspace_handles_dfs =
7559 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7560
4c476991 7561 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7562 if (err)
b47f610b 7563 kzfree(connkeys);
04a773ad
JB		 7564 return err;
7565}
7566
7567static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7568{
4c476991
JB		 7569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7570 struct net_device *dev = info->user_ptr[1];
04a773ad 7571
4c476991
JB		 7572 if (!rdev->ops->leave_ibss)
7573 return -EOPNOTSUPP;
04a773ad 7574
4c476991
JB		 7575 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7576 return -EOPNOTSUPP;
04a773ad 7577
4c476991 7578 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7579}
7580
f4e583c8
AQ		 7581static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7582{
7583 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7584 struct net_device *dev = info->user_ptr[1];
7585 int mcast_rate[IEEE80211_NUM_BANDS];
7586 u32 nla_rate;
7587 int err;
7588
7589 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
876dc930
BVB		 7590 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7591 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
f4e583c8
AQ		 7592 return -EOPNOTSUPP;
7593
7594 if (!rdev->ops->set_mcast_rate)
7595 return -EOPNOTSUPP;
7596
7597 memset(mcast_rate, 0, sizeof(mcast_rate));
7598
7599 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7600 return -EINVAL;
7601
7602 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7603 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7604 return -EINVAL;
7605
a1056b1b 7606 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
f4e583c8
AQ		 7607
7608 return err;
7609}
7610
ad7e718c
JB		 7611static struct sk_buff *
7612__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7613 struct wireless_dev *wdev, int approxlen,
7614 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7615 enum nl80211_attrs attr,
7616 const struct nl80211_vendor_cmd_info *info,
7617 gfp_t gfp)
ad7e718c
JB		 7618{
7619 struct sk_buff *skb;
7620 void *hdr;
7621 struct nlattr *data;
7622
7623 skb = nlmsg_new(approxlen + 100, gfp);
7624 if (!skb)
7625 return NULL;
7626
7627 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7628 if (!hdr) {
7629 kfree_skb(skb);
7630 return NULL;
7631 }
7632
7633 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7634 goto nla_put_failure;
567ffc35
JB		 7635
7636 if (info) {
7637 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7638 info->vendor_id))
7639 goto nla_put_failure;
7640 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7641 info->subcmd))
7642 goto nla_put_failure;
7643 }
7644
6c09e791
AK		 7645 if (wdev) {
7646 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7647 wdev_id(wdev)))
7648 goto nla_put_failure;
7649 if (wdev->netdev &&
7650 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7651 wdev->netdev->ifindex))
7652 goto nla_put_failure;
7653 }
7654
ad7e718c
JB		 7655 data = nla_nest_start(skb, attr);
7656
7657 ((void **)skb->cb)[0] = rdev;
7658 ((void **)skb->cb)[1] = hdr;
7659 ((void **)skb->cb)[2] = data;
7660
7661 return skb;
7662
7663 nla_put_failure:
7664 kfree_skb(skb);
7665 return NULL;
7666}
f4e583c8 7667
e03ad6ea 7668struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7669 struct wireless_dev *wdev,
e03ad6ea
JB		 7670 enum nl80211_commands cmd,
7671 enum nl80211_attrs attr,
7672 int vendor_event_idx,
7673 int approxlen, gfp_t gfp)
7674{
f26cbf40 7675 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7676 const struct nl80211_vendor_cmd_info *info;
7677
7678 switch (cmd) {
7679 case NL80211_CMD_TESTMODE:
7680 if (WARN_ON(vendor_event_idx != -1))
7681 return NULL;
7682 info = NULL;
7683 break;
7684 case NL80211_CMD_VENDOR:
7685 if (WARN_ON(vendor_event_idx < 0 ||
7686 vendor_event_idx >= wiphy->n_vendor_events))
7687 return NULL;
7688 info = &wiphy->vendor_events[vendor_event_idx];
7689 break;
7690 default:
7691 WARN_ON(1);
7692 return NULL;
7693 }
7694
6c09e791 7695 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 7696 cmd, attr, info, gfp);
7697}
7698EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7699
7700void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7701{
7702 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7703 void *hdr = ((void **)skb->cb)[1];
7704 struct nlattr *data = ((void **)skb->cb)[2];
7705 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7706
bd8c78e7
JB		 7707 /* clear CB data for netlink core to own from now on */
7708 memset(skb->cb, 0, sizeof(skb->cb));
7709
e03ad6ea
JB		 7710 nla_nest_end(skb, data);
7711 genlmsg_end(skb, hdr);
7712
7713 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7714 mcgrp = NL80211_MCGRP_VENDOR;
7715
7716 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7717 mcgrp, gfp);
7718}
7719EXPORT_SYMBOL(__cfg80211_send_event_skb);
7720
aff89a9b 7721#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7722static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7723{
4c476991 7724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7725 struct wireless_dev *wdev =
7726 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7727 int err;
7728
fc73f11f
DS		 7729 if (!rdev->ops->testmode_cmd)
7730 return -EOPNOTSUPP;
7731
7732 if (IS_ERR(wdev)) {
7733 err = PTR_ERR(wdev);
7734 if (err != -EINVAL)
7735 return err;
7736 wdev = NULL;
7737 } else if (wdev->wiphy != &rdev->wiphy) {
7738 return -EINVAL;
7739 }
7740
aff89a9b
JB		 7741 if (!info->attrs[NL80211_ATTR_TESTDATA])
7742 return -EINVAL;
7743
ad7e718c 7744 rdev->cur_cmd_info = info;
fc73f11f 7745 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7746 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7747 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7748 rdev->cur_cmd_info = NULL;
aff89a9b 7749
aff89a9b
JB		 7750 return err;
7751}
7752
71063f0e
WYG		 7753static int nl80211_testmode_dump(struct sk_buff *skb,
7754 struct netlink_callback *cb)
7755{
00918d33 7756 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7757 int err;
7758 long phy_idx;
7759 void *data = NULL;
7760 int data_len = 0;
7761
5fe231e8
JB		 7762 rtnl_lock();
7763
71063f0e
WYG		 7764 if (cb->args[0]) {
7765 /*
7766 * 0 is a valid index, but not valid for args[0],
7767 * so we need to offset by 1.
7768 */
7769 phy_idx = cb->args[0] - 1;
7770 } else {
7771 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7772 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7773 nl80211_policy);
7774 if (err)
5fe231e8 7775 goto out_err;
00918d33 7776
2bd7e35d
JB		 7777 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7778 nl80211_fam.attrbuf);
7779 if (IS_ERR(rdev)) {
5fe231e8
JB		 7780 err = PTR_ERR(rdev);
7781 goto out_err;
00918d33 7782 }
2bd7e35d
JB		 7783 phy_idx = rdev->wiphy_idx;
7784 rdev = NULL;
2bd7e35d 7785
71063f0e
WYG		 7786 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7787 cb->args[1] =
7788 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7789 }
7790
7791 if (cb->args[1]) {
7792 data = nla_data((void *)cb->args[1]);
7793 data_len = nla_len((void *)cb->args[1]);
7794 }
7795
00918d33
JB		 7796 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7797 if (!rdev) {
5fe231e8
JB		 7798 err = -ENOENT;
7799 goto out_err;
71063f0e 7800 }
71063f0e 7801
00918d33 7802 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7803 err = -EOPNOTSUPP;
7804 goto out_err;
7805 }
7806
7807 while (1) {
15e47304 7808 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7809 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7810 NL80211_CMD_TESTMODE);
7811 struct nlattr *tmdata;
7812
cb35fba3
DC		 7813 if (!hdr)
7814 break;
7815
9360ffd1 7816 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7817 genlmsg_cancel(skb, hdr);
7818 break;
7819 }
7820
7821 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7822 if (!tmdata) {
7823 genlmsg_cancel(skb, hdr);
7824 break;
7825 }
e35e4d28 7826 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7827 nla_nest_end(skb, tmdata);
7828
7829 if (err == -ENOBUFS || err == -ENOENT) {
7830 genlmsg_cancel(skb, hdr);
7831 break;
7832 } else if (err) {
7833 genlmsg_cancel(skb, hdr);
7834 goto out_err;
7835 }
7836
7837 genlmsg_end(skb, hdr);
7838 }
7839
7840 err = skb->len;
7841 /* see above */
7842 cb->args[0] = phy_idx + 1;
7843 out_err:
5fe231e8 7844 rtnl_unlock();
71063f0e
WYG		 7845 return err;
7846}
aff89a9b
JB		 7847#endif
7848
b23aa676
SO		 7849static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7850{
4c476991
JB		 7851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7852 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7853 struct cfg80211_connect_params connect;
7854 struct wiphy *wiphy;
fffd0934 7855 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7856 int err;
7857
7858 memset(&connect, 0, sizeof(connect));
7859
7860 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7861 return -EINVAL;
7862
7863 if (!info->attrs[NL80211_ATTR_SSID] ||
7864 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7865 return -EINVAL;
7866
7867 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7868 connect.auth_type =
7869 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7870 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7871 NL80211_CMD_CONNECT))
b23aa676
SO		 7872 return -EINVAL;
7873 } else
7874 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7875
7876 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7877
c0692b8f 7878 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7879 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7880 if (err)
7881 return err;
b23aa676 7882
074ac8df 7883 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7884 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7885 return -EOPNOTSUPP;
b23aa676 7886
79c97e97 7887 wiphy = &rdev->wiphy;
b23aa676 7888
4486ea98
BS		 7889 connect.bg_scan_period = -1;
7890 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7891 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7892 connect.bg_scan_period =
7893 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7894 }
7895
b23aa676
SO		 7896 if (info->attrs[NL80211_ATTR_MAC])
7897 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7898 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7899 connect.bssid_hint =
7900 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7901 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7902 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7903
7904 if (info->attrs[NL80211_ATTR_IE]) {
7905 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7906 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7907 }
7908
cee00a95
JM		 7909 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7910 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7911 if (connect.mfp != NL80211_MFP_REQUIRED &&
7912 connect.mfp != NL80211_MFP_NO)
7913 return -EINVAL;
7914 } else {
7915 connect.mfp = NL80211_MFP_NO;
7916 }
7917
b23aa676 7918 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7919 connect.channel = nl80211_get_valid_chan(
7920 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7921 if (!connect.channel)
1df4a510
JM		 7922 return -EINVAL;
7923 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7924 connect.channel_hint = nl80211_get_valid_chan(
7925 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7926 if (!connect.channel_hint)
4c476991 7927 return -EINVAL;
b23aa676
SO		 7928 }
7929
fffd0934
JB		 7930 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7931 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7932 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7933 if (IS_ERR(connkeys))
7934 return PTR_ERR(connkeys);
fffd0934
JB		 7935 }
7936
7e7c8926
BG		 7937 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7938 connect.flags |= ASSOC_REQ_DISABLE_HT;
7939
7940 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7941 memcpy(&connect.ht_capa_mask,
7942 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7943 sizeof(connect.ht_capa_mask));
7944
7945 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7946 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7947 kzfree(connkeys);
7e7c8926 7948 return -EINVAL;
b4e4f47e 7949 }
7e7c8926
BG		 7950 memcpy(&connect.ht_capa,
7951 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7952 sizeof(connect.ht_capa));
7953 }
7954
ee2aca34
JB		 7955 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7956 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7957
7958 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7959 memcpy(&connect.vht_capa_mask,
7960 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7961 sizeof(connect.vht_capa_mask));
7962
7963 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7964 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7965 kzfree(connkeys);
ee2aca34
JB		 7966 return -EINVAL;
7967 }
7968 memcpy(&connect.vht_capa,
7969 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7970 sizeof(connect.vht_capa));
7971 }
7972
bab5ab7d
AK		 7973 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7974 if (!(rdev->wiphy.features &
7975 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
707554b4
OO		 7976 !(rdev->wiphy.features & NL80211_FEATURE_QUIET)) {
7977 kzfree(connkeys);
bab5ab7d 7978 return -EINVAL;
707554b4 7979 }
bab5ab7d
AK		 7980 connect.flags |= ASSOC_REQ_USE_RRM;
7981 }
7982
83739b03
JB		 7983 wdev_lock(dev->ieee80211_ptr);
7984 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7985 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7986 if (err)
b47f610b 7987 kzfree(connkeys);
b23aa676
SO		 7988 return err;
7989}
7990
7991static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7992{
4c476991
JB		 7993 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7994 struct net_device *dev = info->user_ptr[1];
b23aa676 7995 u16 reason;
83739b03 7996 int ret;
b23aa676
SO		 7997
7998 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7999 reason = WLAN_REASON_DEAUTH_LEAVING;
8000 else
8001 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8002
8003 if (reason == 0)
8004 return -EINVAL;
8005
074ac8df 8006 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8007 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8008 return -EOPNOTSUPP;
b23aa676 8009
83739b03
JB		 8010 wdev_lock(dev->ieee80211_ptr);
8011 ret = cfg80211_disconnect(rdev, dev, reason, true);
8012 wdev_unlock(dev->ieee80211_ptr);
8013 return ret;
b23aa676
SO		 8014}
8015
463d0183
JB		 8016static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8017{
4c476991 8018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 8019 struct net *net;
8020 int err;
463d0183 8021
4b681c82
VK		 8022 if (info->attrs[NL80211_ATTR_PID]) {
8023 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8024
8025 net = get_net_ns_by_pid(pid);
8026 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8027 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 8028
4b681c82
VK		 8029 net = get_net_ns_by_fd(fd);
8030 } else {
8031 return -EINVAL;
8032 }
463d0183 8033
4c476991
JB		 8034 if (IS_ERR(net))
8035 return PTR_ERR(net);
463d0183
JB		 8036
8037 err = 0;
8038
8039 /* check if anything to do */
4c476991
JB		 8040 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8041 err = cfg80211_switch_netns(rdev, net);
463d0183 8042
463d0183 8043 put_net(net);
463d0183
JB		 8044 return err;
8045}
8046
67fbb16b
SO		 8047static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8048{
4c476991 8049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 8050 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8051 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 8052 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 8053 struct cfg80211_pmksa pmksa;
8054
8055 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8056
8057 if (!info->attrs[NL80211_ATTR_MAC])
8058 return -EINVAL;
8059
8060 if (!info->attrs[NL80211_ATTR_PMKID])
8061 return -EINVAL;
8062
67fbb16b
SO		 8063 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8064 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8065
074ac8df 8066 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8067 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8068 return -EOPNOTSUPP;
67fbb16b
SO		 8069
8070 switch (info->genlhdr->cmd) {
8071 case NL80211_CMD_SET_PMKSA:
8072 rdev_ops = rdev->ops->set_pmksa;
8073 break;
8074 case NL80211_CMD_DEL_PMKSA:
8075 rdev_ops = rdev->ops->del_pmksa;
8076 break;
8077 default:
8078 WARN_ON(1);
8079 break;
8080 }
8081
4c476991
JB		 8082 if (!rdev_ops)
8083 return -EOPNOTSUPP;
67fbb16b 8084
4c476991 8085 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 8086}
8087
8088static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8089{
4c476991
JB		 8090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8091 struct net_device *dev = info->user_ptr[1];
67fbb16b 8092
074ac8df 8093 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8094 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8095 return -EOPNOTSUPP;
67fbb16b 8096
4c476991
JB		 8097 if (!rdev->ops->flush_pmksa)
8098 return -EOPNOTSUPP;
67fbb16b 8099
e35e4d28 8100 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 8101}
8102
109086ce
AN		 8103static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8104{
8105 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8106 struct net_device *dev = info->user_ptr[1];
8107 u8 action_code, dialog_token;
df942e7b 8108 u32 peer_capability = 0;
109086ce
AN		 8109 u16 status_code;
8110 u8 *peer;
31fa97c5 8111 bool initiator;
109086ce
AN		 8112
8113 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8114 !rdev->ops->tdls_mgmt)
8115 return -EOPNOTSUPP;
8116
8117 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8118 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8119 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8120 !info->attrs[NL80211_ATTR_IE] ||
8121 !info->attrs[NL80211_ATTR_MAC])
8122 return -EINVAL;
8123
8124 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8125 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8126 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8127 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 8128 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 8129 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8130 peer_capability =
8131 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 8132
e35e4d28 8133 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 8134 dialog_token, status_code, peer_capability,
31fa97c5 8135 initiator,
e35e4d28
HG		 8136 nla_data(info->attrs[NL80211_ATTR_IE]),
8137 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 8138}
8139
8140static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8141{
8142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8143 struct net_device *dev = info->user_ptr[1];
8144 enum nl80211_tdls_operation operation;
8145 u8 *peer;
8146
8147 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8148 !rdev->ops->tdls_oper)
8149 return -EOPNOTSUPP;
8150
8151 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8152 !info->attrs[NL80211_ATTR_MAC])
8153 return -EINVAL;
8154
8155 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8156 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8157
e35e4d28 8158 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 8159}
8160
9588bbd5
JM		 8161static int nl80211_remain_on_channel(struct sk_buff *skb,
8162 struct genl_info *info)
8163{
4c476991 8164 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8165 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8166 struct cfg80211_chan_def chandef;
9588bbd5
JM		 8167 struct sk_buff *msg;
8168 void *hdr;
8169 u64 cookie;
683b6d3b 8170 u32 duration;
9588bbd5
JM		 8171 int err;
8172
8173 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8174 !info->attrs[NL80211_ATTR_DURATION])
8175 return -EINVAL;
8176
8177 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8178
ebf348fc
JB		 8179 if (!rdev->ops->remain_on_channel ||
8180 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8181 return -EOPNOTSUPP;
8182
9588bbd5 8183 /*
ebf348fc
JB		 8184 * We should be on that channel for at least a minimum amount of
8185 * time (10ms) but no longer than the driver supports.
9588bbd5 8186 */
ebf348fc 8187 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 8188 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 8189 return -EINVAL;
8190
683b6d3b
JB		 8191 err = nl80211_parse_chandef(rdev, info, &chandef);
8192 if (err)
8193 return err;
9588bbd5
JM		 8194
8195 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8196 if (!msg)
8197 return -ENOMEM;
9588bbd5 8198
15e47304 8199 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 8200 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 8201 if (!hdr) {
8202 err = -ENOBUFS;
9588bbd5
JM		 8203 goto free_msg;
8204 }
8205
683b6d3b
JB		 8206 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8207 duration, &cookie);
9588bbd5
JM		 8208
8209 if (err)
8210 goto free_msg;
8211
9360ffd1
DM		 8212 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8213 goto nla_put_failure;
9588bbd5
JM		 8214
8215 genlmsg_end(msg, hdr);
4c476991
JB		 8216
8217 return genlmsg_reply(msg, info);
9588bbd5
JM		 8218
8219 nla_put_failure:
8220 err = -ENOBUFS;
8221 free_msg:
8222 nlmsg_free(msg);
9588bbd5
JM		 8223 return err;
8224}
8225
8226static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8227 struct genl_info *info)
8228{
4c476991 8229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8230 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8231 u64 cookie;
9588bbd5
JM		 8232
8233 if (!info->attrs[NL80211_ATTR_COOKIE])
8234 return -EINVAL;
8235
4c476991
JB		 8236 if (!rdev->ops->cancel_remain_on_channel)
8237 return -EOPNOTSUPP;
9588bbd5 8238
9588bbd5
JM		 8239 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8240
e35e4d28 8241 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8242}
8243
13ae75b1
JM		 8244static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8245 u8 *rates, u8 rates_len)
8246{
8247 u8 i;
8248 u32 mask = 0;
8249
8250 for (i = 0; i < rates_len; i++) {
8251 int rate = (rates[i] & 0x7f) * 5;
8252 int ridx;
8253 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8254 struct ieee80211_rate *srate =
8255 &sband->bitrates[ridx];
8256 if (rate == srate->bitrate) {
8257 mask |= 1 << ridx;
8258 break;
8259 }
8260 }
8261 if (ridx == sband->n_bitrates)
8262 return 0; /* rate not found */
8263 }
8264
8265 return mask;
8266}
8267
24db78c0
SW		 8268static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8269 u8 *rates, u8 rates_len,
8270 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8271{
8272 u8 i;
8273
8274 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8275
8276 for (i = 0; i < rates_len; i++) {
8277 int ridx, rbit;
8278
8279 ridx = rates[i] / 8;
8280 rbit = BIT(rates[i] % 8);
8281
8282 /* check validity */
910570b5 8283 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8284 return false;
8285
8286 /* check availability */
8287 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8288 mcs[ridx] |= rbit;
8289 else
8290 return false;
8291 }
8292
8293 return true;
8294}
8295
204e35a9
JD		 8296static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8297{
8298 u16 mcs_mask = 0;
8299
8300 switch (vht_mcs_map) {
8301 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8302 break;
8303 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8304 mcs_mask = 0x00FF;
8305 break;
8306 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8307 mcs_mask = 0x01FF;
8308 break;
8309 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8310 mcs_mask = 0x03FF;
8311 break;
8312 default:
8313 break;
8314 }
8315
8316 return mcs_mask;
8317}
8318
8319static void vht_build_mcs_mask(u16 vht_mcs_map,
8320 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8321{
8322 u8 nss;
8323
8324 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8325 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8326 vht_mcs_map >>= 2;
8327 }
8328}
8329
8330static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8331 struct nl80211_txrate_vht *txrate,
8332 u16 mcs[NL80211_VHT_NSS_MAX])
8333{
8334 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8335 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8336 u8 i;
8337
8338 if (!sband->vht_cap.vht_supported)
8339 return false;
8340
8341 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8342
8343 /* Build vht_mcs_mask from VHT capabilities */
8344 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8345
8346 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8347 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8348 mcs[i] = txrate->mcs[i];
8349 else
8350 return false;
8351 }
8352
8353 return true;
8354}
8355
b54452b0 8356static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8357 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8358 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8359 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8360 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8361 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8362 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8363};
8364
8365static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8366 struct genl_info *info)
8367{
8368 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8370 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8371 int rem, i;
8372 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8373 struct nlattr *tx_rates;
8374 struct ieee80211_supported_band *sband;
204e35a9 8375 u16 vht_tx_mcs_map;
13ae75b1 8376
4c476991
JB		 8377 if (!rdev->ops->set_bitrate_mask)
8378 return -EOPNOTSUPP;
13ae75b1
JM		 8379
8380 memset(&mask, 0, sizeof(mask));
8381 /* Default to all rates enabled */
8382 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8383 sband = rdev->wiphy.bands[i];
7869303b
JD		 8384
8385 if (!sband)
8386 continue;
8387
8388 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8389 memcpy(mask.control[i].ht_mcs,
7869303b 8390 sband->ht_cap.mcs.rx_mask,
d1e33e65 8391 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8392
8393 if (!sband->vht_cap.vht_supported)
8394 continue;
8395
8396 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8397 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8398 }
8399
b9243ab0
JD		 8400 /* if no rates are given set it back to the defaults */
8401 if (!info->attrs[NL80211_ATTR_TX_RATES])
8402 goto out;
8403
13ae75b1
JM		 8404 /*
8405 * The nested attribute uses enum nl80211_band as the index. This maps
8406 * directly to the enum ieee80211_band values used in cfg80211.
8407 */
24db78c0 8408 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8409 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8410 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8411 int err;
8412
4c476991
JB		 8413 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8414 return -EINVAL;
13ae75b1 8415 sband = rdev->wiphy.bands[band];
4c476991
JB		 8416 if (sband == NULL)
8417 return -EINVAL;
ae811e21
JB		 8418 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8419 nla_len(tx_rates), nl80211_txattr_policy);
8420 if (err)
8421 return err;
13ae75b1
JM		 8422 if (tb[NL80211_TXRATE_LEGACY]) {
8423 mask.control[band].legacy = rateset_to_mask(
8424 sband,
8425 nla_data(tb[NL80211_TXRATE_LEGACY]),
8426 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8427 if ((mask.control[band].legacy == 0) &&
8428 nla_len(tb[NL80211_TXRATE_LEGACY]))
8429 return -EINVAL;
24db78c0 8430 }
d1e33e65 8431 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8432 if (!ht_rateset_to_mask(
8433 sband,
d1e33e65
JD		 8434 nla_data(tb[NL80211_TXRATE_HT]),
8435 nla_len(tb[NL80211_TXRATE_HT]),
8436 mask.control[band].ht_mcs))
24db78c0
SW		 8437 return -EINVAL;
8438 }
204e35a9
JD		 8439 if (tb[NL80211_TXRATE_VHT]) {
8440 if (!vht_set_mcs_mask(
8441 sband,
8442 nla_data(tb[NL80211_TXRATE_VHT]),
8443 mask.control[band].vht_mcs))
8444 return -EINVAL;
8445 }
0b9323f6
JD		 8446 if (tb[NL80211_TXRATE_GI]) {
8447 mask.control[band].gi =
8448 nla_get_u8(tb[NL80211_TXRATE_GI]);
8449 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8450 return -EINVAL;
8451 }
24db78c0
SW		 8452
8453 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8454 /* don't allow empty legacy rates if HT or VHT
8455 * are not even supported.
8456 */
8457 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8458 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8459 return -EINVAL;
8460
8461 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8462 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8463 goto out;
8464
8465 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8466 if (mask.control[band].vht_mcs[i])
8467 goto out;
24db78c0
SW		 8468
8469 /* legacy and mcs rates may not be both empty */
204e35a9 8470 return -EINVAL;
13ae75b1
JM		 8471 }
8472 }
8473
b9243ab0 8474out:
e35e4d28 8475 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8476}
8477
2e161f78 8478static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8479{
4c476991 8480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8481 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8482 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8483
8484 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8485 return -EINVAL;
8486
2e161f78
JB		 8487 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8488 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8489
71bbc994
JB		 8490 switch (wdev->iftype) {
8491 case NL80211_IFTYPE_STATION:
8492 case NL80211_IFTYPE_ADHOC:
8493 case NL80211_IFTYPE_P2P_CLIENT:
8494 case NL80211_IFTYPE_AP:
8495 case NL80211_IFTYPE_AP_VLAN:
8496 case NL80211_IFTYPE_MESH_POINT:
8497 case NL80211_IFTYPE_P2P_GO:
98104fde 8498 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8499 break;
8500 default:
4c476991 8501 return -EOPNOTSUPP;
71bbc994 8502 }
026331c4
JM		 8503
8504 /* not much point in registering if we can't reply */
4c476991
JB		 8505 if (!rdev->ops->mgmt_tx)
8506 return -EOPNOTSUPP;
026331c4 8507
15e47304 8508 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8509 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8510 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8511}
8512
2e161f78 8513static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8514{
4c476991 8515 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8516 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8517 struct cfg80211_chan_def chandef;
026331c4 8518 int err;
d64d373f 8519 void *hdr = NULL;
026331c4 8520 u64 cookie;
e247bd90 8521 struct sk_buff *msg = NULL;
b176e629
AO		 8522 struct cfg80211_mgmt_tx_params params = {
8523 .dont_wait_for_ack =
8524 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8525 };
026331c4 8526
683b6d3b 8527 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8528 return -EINVAL;
8529
4c476991
JB		 8530 if (!rdev->ops->mgmt_tx)
8531 return -EOPNOTSUPP;
026331c4 8532
71bbc994 8533 switch (wdev->iftype) {
ea141b75
AQ		 8534 case NL80211_IFTYPE_P2P_DEVICE:
8535 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8536 return -EINVAL;
71bbc994
JB		 8537 case NL80211_IFTYPE_STATION:
8538 case NL80211_IFTYPE_ADHOC:
8539 case NL80211_IFTYPE_P2P_CLIENT:
8540 case NL80211_IFTYPE_AP:
8541 case NL80211_IFTYPE_AP_VLAN:
8542 case NL80211_IFTYPE_MESH_POINT:
8543 case NL80211_IFTYPE_P2P_GO:
8544 break;
8545 default:
4c476991 8546 return -EOPNOTSUPP;
71bbc994 8547 }
026331c4 8548
f7ca38df 8549 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8550 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8551 return -EINVAL;
b176e629 8552 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8553
8554 /*
8555 * We should wait on the channel for at least a minimum amount
8556 * of time (10ms) but no longer than the driver supports.
8557 */
b176e629
AO		 8558 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8559 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8560 return -EINVAL;
8561
f7ca38df
JB		 8562 }
8563
b176e629 8564 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8565
b176e629 8566 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8567 return -EINVAL;
8568
b176e629 8569 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8570
ea141b75
AQ		 8571 /* get the channel if any has been specified, otherwise pass NULL to
8572 * the driver. The latter will use the current one
8573 */
8574 chandef.chan = NULL;
8575 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8576 err = nl80211_parse_chandef(rdev, info, &chandef);
8577 if (err)
8578 return err;
8579 }
8580
b176e629 8581 if (!chandef.chan && params.offchan)
ea141b75 8582 return -EINVAL;
026331c4 8583
34d22ce2
AO		 8584 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8585 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8586
8587 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8588 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8589 int i;
8590
8591 if (len % sizeof(u16))
8592 return -EINVAL;
8593
8594 params.n_csa_offsets = len / sizeof(u16);
8595 params.csa_offsets =
8596 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8597
8598 /* check that all the offsets fit the frame */
8599 for (i = 0; i < params.n_csa_offsets; i++) {
8600 if (params.csa_offsets[i] >= params.len)
8601 return -EINVAL;
8602 }
8603 }
8604
b176e629 8605 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8606 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8607 if (!msg)
8608 return -ENOMEM;
026331c4 8609
15e47304 8610 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8611 NL80211_CMD_FRAME);
cb35fba3
DC		 8612 if (!hdr) {
8613 err = -ENOBUFS;
e247bd90
JB		 8614 goto free_msg;
8615 }
026331c4 8616 }
e247bd90 8617
b176e629
AO		 8618 params.chan = chandef.chan;
8619 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8620 if (err)
8621 goto free_msg;
8622
e247bd90 8623 if (msg) {
9360ffd1
DM		 8624 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8625 goto nla_put_failure;
026331c4 8626
e247bd90
JB		 8627 genlmsg_end(msg, hdr);
8628 return genlmsg_reply(msg, info);
8629 }
8630
8631 return 0;
026331c4
JM		 8632
8633 nla_put_failure:
8634 err = -ENOBUFS;
8635 free_msg:
8636 nlmsg_free(msg);
026331c4
JM		 8637 return err;
8638}
8639
f7ca38df
JB		 8640static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8641{
8642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8643 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8644 u64 cookie;
8645
8646 if (!info->attrs[NL80211_ATTR_COOKIE])
8647 return -EINVAL;
8648
8649 if (!rdev->ops->mgmt_tx_cancel_wait)
8650 return -EOPNOTSUPP;
8651
71bbc994
JB		 8652 switch (wdev->iftype) {
8653 case NL80211_IFTYPE_STATION:
8654 case NL80211_IFTYPE_ADHOC:
8655 case NL80211_IFTYPE_P2P_CLIENT:
8656 case NL80211_IFTYPE_AP:
8657 case NL80211_IFTYPE_AP_VLAN:
8658 case NL80211_IFTYPE_P2P_GO:
98104fde 8659 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8660 break;
8661 default:
f7ca38df 8662 return -EOPNOTSUPP;
71bbc994 8663 }
f7ca38df
JB		 8664
8665 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8666
e35e4d28 8667 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8668}
8669
ffb9eb3d
KV		 8670static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8671{
4c476991 8672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8673 struct wireless_dev *wdev;
4c476991 8674 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8675 u8 ps_state;
8676 bool state;
8677 int err;
8678
4c476991
JB		 8679 if (!info->attrs[NL80211_ATTR_PS_STATE])
8680 return -EINVAL;
ffb9eb3d
KV		 8681
8682 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8683
4c476991
JB		 8684 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8685 return -EINVAL;
ffb9eb3d
KV		 8686
8687 wdev = dev->ieee80211_ptr;
8688
4c476991
JB		 8689 if (!rdev->ops->set_power_mgmt)
8690 return -EOPNOTSUPP;
ffb9eb3d
KV		 8691
8692 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8693
8694 if (state == wdev->ps)
4c476991 8695 return 0;
ffb9eb3d 8696
e35e4d28 8697 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8698 if (!err)
8699 wdev->ps = state;
ffb9eb3d
KV		 8700 return err;
8701}
8702
8703static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8704{
4c476991 8705 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8706 enum nl80211_ps_state ps_state;
8707 struct wireless_dev *wdev;
4c476991 8708 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8709 struct sk_buff *msg;
8710 void *hdr;
8711 int err;
8712
ffb9eb3d
KV		 8713 wdev = dev->ieee80211_ptr;
8714
4c476991
JB		 8715 if (!rdev->ops->set_power_mgmt)
8716 return -EOPNOTSUPP;
ffb9eb3d
KV		 8717
8718 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8719 if (!msg)
8720 return -ENOMEM;
ffb9eb3d 8721
15e47304 8722 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8723 NL80211_CMD_GET_POWER_SAVE);
8724 if (!hdr) {
4c476991 8725 err = -ENOBUFS;
ffb9eb3d
KV		 8726 goto free_msg;
8727 }
8728
8729 if (wdev->ps)
8730 ps_state = NL80211_PS_ENABLED;
8731 else
8732 ps_state = NL80211_PS_DISABLED;
8733
9360ffd1
DM		 8734 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8735 goto nla_put_failure;
ffb9eb3d
KV		 8736
8737 genlmsg_end(msg, hdr);
4c476991 8738 return genlmsg_reply(msg, info);
ffb9eb3d 8739
4c476991 8740 nla_put_failure:
ffb9eb3d 8741 err = -ENOBUFS;
4c476991 8742 free_msg:
ffb9eb3d 8743 nlmsg_free(msg);
ffb9eb3d
KV		 8744 return err;
8745}
8746
94e860f1
JB		 8747static const struct nla_policy
8748nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8749 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8750 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8751 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8752 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8753 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8754 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8755};
8756
84f10708 8757static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8758 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8759{
8760 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8761 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8762 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8763
d9d8b019 8764 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8765 return -EINVAL;
8766
84f10708
TP		 8767 if (!rdev->ops->set_cqm_txe_config)
8768 return -EOPNOTSUPP;
8769
8770 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8771 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8772 return -EOPNOTSUPP;
8773
e35e4d28 8774 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8775}
8776
d6dc1a38
JO		 8777static int nl80211_set_cqm_rssi(struct genl_info *info,
8778 s32 threshold, u32 hysteresis)
8779{
4c476991 8780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8781 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8782 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8783
8784 if (threshold > 0)
8785 return -EINVAL;
8786
1da5fcc8
JB		 8787 /* disabling - hysteresis should also be zero then */
8788 if (threshold == 0)
8789 hysteresis = 0;
d6dc1a38 8790
4c476991
JB		 8791 if (!rdev->ops->set_cqm_rssi_config)
8792 return -EOPNOTSUPP;
d6dc1a38 8793
074ac8df 8794 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8795 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8796 return -EOPNOTSUPP;
d6dc1a38 8797
e35e4d28 8798 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8799}
8800
8801static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8802{
8803 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8804 struct nlattr *cqm;
8805 int err;
8806
8807 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8808 if (!cqm)
8809 return -EINVAL;
d6dc1a38
JO		 8810
8811 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8812 nl80211_attr_cqm_policy);
8813 if (err)
1da5fcc8 8814 return err;
d6dc1a38
JO		 8815
8816 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8817 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8818 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8819 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8820
1da5fcc8
JB		 8821 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8822 }
8823
8824 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8825 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8826 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8827 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8828 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8829 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8830
8831 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8832 }
8833
8834 return -EINVAL;
d6dc1a38
JO		 8835}
8836
6e0bd6c3
RL		 8837static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8838{
8839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8840 struct net_device *dev = info->user_ptr[1];
8841 struct ocb_setup setup = {};
8842 int err;
8843
8844 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8845 if (err)
8846 return err;
8847
8848 return cfg80211_join_ocb(rdev, dev, &setup);
8849}
8850
8851static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8852{
8853 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8854 struct net_device *dev = info->user_ptr[1];
8855
8856 return cfg80211_leave_ocb(rdev, dev);
8857}
8858
29cbe68c
JB		 8859static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8860{
8861 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8862 struct net_device *dev = info->user_ptr[1];
8863 struct mesh_config cfg;
c80d545d 8864 struct mesh_setup setup;
29cbe68c
JB		 8865 int err;
8866
8867 /* start with default */
8868 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8869 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8870
24bdd9f4 8871 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8872 /* and parse parameters if given */
24bdd9f4 8873 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8874 if (err)
8875 return err;
8876 }
8877
8878 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8879 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8880 return -EINVAL;
8881
c80d545d
JC		 8882 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8883 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8884
4bb62344
CYY		 8885 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8886 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8887 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8888 return -EINVAL;
8889
9bdbf04d
MP		 8890 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8891 setup.beacon_interval =
8892 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8893 if (setup.beacon_interval < 10 ||
8894 setup.beacon_interval > 10000)
8895 return -EINVAL;
8896 }
8897
8898 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8899 setup.dtim_period =
8900 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8901 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8902 return -EINVAL;
8903 }
8904
c80d545d
JC		 8905 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8906 /* parse additional setup parameters if given */
8907 err = nl80211_parse_mesh_setup(info, &setup);
8908 if (err)
8909 return err;
8910 }
8911
d37bb18a
TP		 8912 if (setup.user_mpm)
8913 cfg.auto_open_plinks = false;
8914
cc1d2806 8915 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8916 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8917 if (err)
8918 return err;
cc1d2806
JB		 8919 } else {
8920 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8921 setup.chandef.chan = NULL;
cc1d2806
JB		 8922 }
8923
ffb3cf30
AN		 8924 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8925 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8926 int n_rates =
8927 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8928 struct ieee80211_supported_band *sband;
8929
8930 if (!setup.chandef.chan)
8931 return -EINVAL;
8932
8933 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8934
8935 err = ieee80211_get_ratemask(sband, rates, n_rates,
8936 &setup.basic_rates);
8937 if (err)
8938 return err;
8939 }
8940
c80d545d 8941 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8942}
8943
8944static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8945{
8946 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8947 struct net_device *dev = info->user_ptr[1];
8948
8949 return cfg80211_leave_mesh(rdev, dev);
8950}
8951
dfb89c56 8952#ifdef CONFIG_PM
bb92d199
AK		 8953static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8954 struct cfg80211_registered_device *rdev)
8955{
6abb9cb9 8956 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8957 struct nlattr *nl_pats, *nl_pat;
8958 int i, pat_len;
8959
6abb9cb9 8960 if (!wowlan->n_patterns)
bb92d199
AK		 8961 return 0;
8962
8963 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8964 if (!nl_pats)
8965 return -ENOBUFS;
8966
6abb9cb9 8967 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8968 nl_pat = nla_nest_start(msg, i + 1);
8969 if (!nl_pat)
8970 return -ENOBUFS;
6abb9cb9 8971 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8972 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8973 wowlan->patterns[i].mask) ||
50ac6607
AK		 8974 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8975 wowlan->patterns[i].pattern) ||
8976 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8977 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8978 return -ENOBUFS;
8979 nla_nest_end(msg, nl_pat);
8980 }
8981 nla_nest_end(msg, nl_pats);
8982
8983 return 0;
8984}
8985
2a0e047e
JB		 8986static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8987 struct cfg80211_wowlan_tcp *tcp)
8988{
8989 struct nlattr *nl_tcp;
8990
8991 if (!tcp)
8992 return 0;
8993
8994 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8995 if (!nl_tcp)
8996 return -ENOBUFS;
8997
930345ea
JB		 8998 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8999 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
2a0e047e
JB		 9000 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9001 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9002 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9003 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9004 tcp->payload_len, tcp->payload) ||
9005 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9006 tcp->data_interval) ||
9007 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9008 tcp->wake_len, tcp->wake_data) ||
9009 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9010 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9011 return -ENOBUFS;
9012
9013 if (tcp->payload_seq.len &&
9014 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9015 sizeof(tcp->payload_seq), &tcp->payload_seq))
9016 return -ENOBUFS;
9017
9018 if (tcp->payload_tok.len &&
9019 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9020 sizeof(tcp->payload_tok) + tcp->tokens_size,
9021 &tcp->payload_tok))
9022 return -ENOBUFS;
9023
e248ad30
JB		 9024 nla_nest_end(msg, nl_tcp);
9025
2a0e047e
JB		 9026 return 0;
9027}
9028
75453ccb
LC		 9029static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9030 struct cfg80211_sched_scan_request *req)
9031{
3b06d277 9032 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
75453ccb
LC		 9033 int i;
9034
9035 if (!req)
9036 return 0;
9037
9038 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9039 if (!nd)
9040 return -ENOBUFS;
9041
3b06d277
AS		 9042 if (req->n_scan_plans == 1 &&
9043 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9044 req->scan_plans[0].interval * 1000))
75453ccb
LC		 9045 return -ENOBUFS;
9046
21fea567
LC		 9047 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9048 return -ENOBUFS;
9049
75453ccb
LC		 9050 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9051 if (!freqs)
9052 return -ENOBUFS;
9053
9054 for (i = 0; i < req->n_channels; i++)
9055 nla_put_u32(msg, i, req->channels[i]->center_freq);
9056
9057 nla_nest_end(msg, freqs);
9058
9059 if (req->n_match_sets) {
9060 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9061 for (i = 0; i < req->n_match_sets; i++) {
9062 match = nla_nest_start(msg, i);
9063 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9064 req->match_sets[i].ssid.ssid_len,
9065 req->match_sets[i].ssid.ssid);
9066 nla_nest_end(msg, match);
9067 }
9068 nla_nest_end(msg, matches);
9069 }
9070
3b06d277
AS		 9071 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9072 if (!scan_plans)
9073 return -ENOBUFS;
9074
9075 for (i = 0; i < req->n_scan_plans; i++) {
9076 scan_plan = nla_nest_start(msg, i + 1);
9077 if (!scan_plan ||
9078 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9079 req->scan_plans[i].interval) ||
9080 (req->scan_plans[i].iterations &&
9081 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9082 req->scan_plans[i].iterations)))
9083 return -ENOBUFS;
9084 nla_nest_end(msg, scan_plan);
9085 }
9086 nla_nest_end(msg, scan_plans);
9087
75453ccb
LC		 9088 nla_nest_end(msg, nd);
9089
9090 return 0;
9091}
9092
ff1b6e69
JB		 9093static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9094{
9095 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9096 struct sk_buff *msg;
9097 void *hdr;
2a0e047e 9098 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 9099
964dc9e2 9100 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 9101 return -EOPNOTSUPP;
9102
6abb9cb9 9103 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 9104 /* adjust size to have room for all the data */
6abb9cb9
JB		 9105 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9106 rdev->wiphy.wowlan_config->tcp->payload_len +
9107 rdev->wiphy.wowlan_config->tcp->wake_len +
9108 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 9109 }
9110
9111 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 9112 if (!msg)
9113 return -ENOMEM;
9114
15e47304 9115 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 9116 NL80211_CMD_GET_WOWLAN);
9117 if (!hdr)
9118 goto nla_put_failure;
9119
6abb9cb9 9120 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 9121 struct nlattr *nl_wowlan;
9122
9123 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9124 if (!nl_wowlan)
9125 goto nla_put_failure;
9126
6abb9cb9 9127 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 9128 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 9129 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 9130 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 9131 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 9132 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 9133 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 9134 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 9135 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 9136 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 9137 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 9138 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 9139 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 9140 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9141 goto nla_put_failure;
2a0e047e 9142
bb92d199
AK		 9143 if (nl80211_send_wowlan_patterns(msg, rdev))
9144 goto nla_put_failure;
2a0e047e 9145
6abb9cb9
JB		 9146 if (nl80211_send_wowlan_tcp(msg,
9147 rdev->wiphy.wowlan_config->tcp))
2a0e047e 9148 goto nla_put_failure;
75453ccb
LC		 9149
9150 if (nl80211_send_wowlan_nd(
9151 msg,
9152 rdev->wiphy.wowlan_config->nd_config))
9153 goto nla_put_failure;
2a0e047e 9154
ff1b6e69
JB		 9155 nla_nest_end(msg, nl_wowlan);
9156 }
9157
9158 genlmsg_end(msg, hdr);
9159 return genlmsg_reply(msg, info);
9160
9161nla_put_failure:
9162 nlmsg_free(msg);
9163 return -ENOBUFS;
9164}
9165
2a0e047e
JB		 9166static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9167 struct nlattr *attr,
9168 struct cfg80211_wowlan *trig)
9169{
9170 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9171 struct cfg80211_wowlan_tcp *cfg;
9172 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9173 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9174 u32 size;
9175 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9176 int err, port;
9177
964dc9e2 9178 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 9179 return -EINVAL;
9180
9181 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9182 nla_data(attr), nla_len(attr),
9183 nl80211_wowlan_tcp_policy);
9184 if (err)
9185 return err;
9186
9187 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9188 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9189 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9190 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9191 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9192 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9193 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9194 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9195 return -EINVAL;
9196
9197 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 9198 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 9199 return -EINVAL;
9200
9201 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 9202 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 9203 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 9204 return -EINVAL;
9205
9206 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 9207 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 9208 return -EINVAL;
9209
9210 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9211 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9212 return -EINVAL;
9213
9214 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9215 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9216
9217 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9218 tokens_size = tokln - sizeof(*tok);
9219
9220 if (!tok->len || tokens_size % tok->len)
9221 return -EINVAL;
964dc9e2 9222 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 9223 return -EINVAL;
964dc9e2 9224 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 9225 return -EINVAL;
964dc9e2 9226 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 9227 return -EINVAL;
964dc9e2 9228 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 9229 return -EINVAL;
9230 if (tok->offset + tok->len > data_size)
9231 return -EINVAL;
9232 }
9233
9234 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9235 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9236 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9237 return -EINVAL;
9238 if (seq->len == 0 || seq->len > 4)
9239 return -EINVAL;
9240 if (seq->len + seq->offset > data_size)
9241 return -EINVAL;
9242 }
9243
9244 size = sizeof(*cfg);
9245 size += data_size;
9246 size += wake_size + wake_mask_size;
9247 size += tokens_size;
9248
9249 cfg = kzalloc(size, GFP_KERNEL);
9250 if (!cfg)
9251 return -ENOMEM;
67b61f6c
JB		 9252 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9253 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
2a0e047e
JB		 9254 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9255 ETH_ALEN);
9256 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9257 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9258 else
9259 port = 0;
9260#ifdef CONFIG_INET
9261 /* allocate a socket and port for it and use it */
9262 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9263 IPPROTO_TCP, &cfg->sock, 1);
9264 if (err) {
9265 kfree(cfg);
9266 return err;
9267 }
9268 if (inet_csk_get_port(cfg->sock->sk, port)) {
9269 sock_release(cfg->sock);
9270 kfree(cfg);
9271 return -EADDRINUSE;
9272 }
9273 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9274#else
9275 if (!port) {
9276 kfree(cfg);
9277 return -EINVAL;
9278 }
9279 cfg->src_port = port;
9280#endif
9281
9282 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9283 cfg->payload_len = data_size;
9284 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9285 memcpy((void *)cfg->payload,
9286 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9287 data_size);
9288 if (seq)
9289 cfg->payload_seq = *seq;
9290 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9291 cfg->wake_len = wake_size;
9292 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9293 memcpy((void *)cfg->wake_data,
9294 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9295 wake_size);
9296 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9297 data_size + wake_size;
9298 memcpy((void *)cfg->wake_mask,
9299 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9300 wake_mask_size);
9301 if (tok) {
9302 cfg->tokens_size = tokens_size;
9303 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9304 }
9305
9306 trig->tcp = cfg;
9307
9308 return 0;
9309}
9310
8cd4d456
LC		 9311static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9312 const struct wiphy_wowlan_support *wowlan,
9313 struct nlattr *attr,
9314 struct cfg80211_wowlan *trig)
9315{
9316 struct nlattr **tb;
9317 int err;
9318
9319 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9320 if (!tb)
9321 return -ENOMEM;
9322
9323 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9324 err = -EOPNOTSUPP;
9325 goto out;
9326 }
9327
9328 err = nla_parse(tb, NL80211_ATTR_MAX,
9329 nla_data(attr), nla_len(attr),
9330 nl80211_policy);
9331 if (err)
9332 goto out;
9333
ad2b26ab 9334 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9335 err = PTR_ERR_OR_ZERO(trig->nd_config);
9336 if (err)
9337 trig->nd_config = NULL;
9338
9339out:
9340 kfree(tb);
9341 return err;
9342}
9343
ff1b6e69
JB		 9344static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9345{
9346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9347 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9348 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9349 struct cfg80211_wowlan *ntrig;
964dc9e2 9350 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9351 int err, i;
6abb9cb9 9352 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9353 bool regular = false;
ff1b6e69 9354
964dc9e2 9355 if (!wowlan)
ff1b6e69
JB		 9356 return -EOPNOTSUPP;
9357
ae33bd81
JB		 9358 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9359 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9360 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9361 goto set_wakeup;
9362 }
ff1b6e69
JB		 9363
9364 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9365 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9366 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9367 nl80211_wowlan_policy);
9368 if (err)
9369 return err;
9370
9371 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9372 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9373 return -EINVAL;
9374 new_triggers.any = true;
9375 }
9376
9377 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9378 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9379 return -EINVAL;
9380 new_triggers.disconnect = true;
98fc4386 9381 regular = true;
ff1b6e69
JB		 9382 }
9383
9384 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9385 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9386 return -EINVAL;
9387 new_triggers.magic_pkt = true;
98fc4386 9388 regular = true;
ff1b6e69
JB		 9389 }
9390
77dbbb13
JB		 9391 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9392 return -EINVAL;
9393
9394 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9395 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9396 return -EINVAL;
9397 new_triggers.gtk_rekey_failure = true;
98fc4386 9398 regular = true;
77dbbb13
JB		 9399 }
9400
9401 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9402 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9403 return -EINVAL;
9404 new_triggers.eap_identity_req = true;
98fc4386 9405 regular = true;
77dbbb13
JB		 9406 }
9407
9408 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9409 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9410 return -EINVAL;
9411 new_triggers.four_way_handshake = true;
98fc4386 9412 regular = true;
77dbbb13
JB		 9413 }
9414
9415 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9416 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9417 return -EINVAL;
9418 new_triggers.rfkill_release = true;
98fc4386 9419 regular = true;
77dbbb13
JB		 9420 }
9421
ff1b6e69
JB		 9422 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9423 struct nlattr *pat;
9424 int n_patterns = 0;
bb92d199 9425 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9426 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9427
98fc4386
JB		 9428 regular = true;
9429
ff1b6e69
JB		 9430 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9431 rem)
9432 n_patterns++;
9433 if (n_patterns > wowlan->n_patterns)
9434 return -EINVAL;
9435
9436 new_triggers.patterns = kcalloc(n_patterns,
9437 sizeof(new_triggers.patterns[0]),
9438 GFP_KERNEL);
9439 if (!new_triggers.patterns)
9440 return -ENOMEM;
9441
9442 new_triggers.n_patterns = n_patterns;
9443 i = 0;
9444
9445 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9446 rem) {
922bd80f
JB		 9447 u8 *mask_pat;
9448
50ac6607
AK		 9449 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9450 nla_len(pat), NULL);
ff1b6e69 9451 err = -EINVAL;
50ac6607
AK		 9452 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9453 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9454 goto error;
50ac6607 9455 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9456 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9457 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9458 goto error;
9459 if (pat_len > wowlan->pattern_max_len ||
9460 pat_len < wowlan->pattern_min_len)
9461 goto error;
9462
50ac6607 9463 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9464 pkt_offset = 0;
9465 else
9466 pkt_offset = nla_get_u32(
50ac6607 9467 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9468 if (pkt_offset > wowlan->max_pkt_offset)
9469 goto error;
9470 new_triggers.patterns[i].pkt_offset = pkt_offset;
9471
922bd80f
JB		 9472 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9473 if (!mask_pat) {
ff1b6e69
JB		 9474 err = -ENOMEM;
9475 goto error;
9476 }
922bd80f
JB		 9477 new_triggers.patterns[i].mask = mask_pat;
9478 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9479 mask_len);
922bd80f
JB		 9480 mask_pat += mask_len;
9481 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9482 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9483 memcpy(mask_pat,
50ac6607 9484 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9485 pat_len);
9486 i++;
9487 }
9488 }
9489
2a0e047e 9490 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9491 regular = true;
2a0e047e
JB		 9492 err = nl80211_parse_wowlan_tcp(
9493 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9494 &new_triggers);
9495 if (err)
9496 goto error;
9497 }
9498
8cd4d456 9499 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9500 regular = true;
8cd4d456
LC		 9501 err = nl80211_parse_wowlan_nd(
9502 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9503 &new_triggers);
9504 if (err)
9505 goto error;
9506 }
9507
98fc4386
JB		 9508 /* The 'any' trigger means the device continues operating more or less
9509 * as in its normal operation mode and wakes up the host on most of the
9510 * normal interrupts (like packet RX, ...)
9511 * It therefore makes little sense to combine with the more constrained
9512 * wakeup trigger modes.
9513 */
9514 if (new_triggers.any && regular) {
9515 err = -EINVAL;
9516 goto error;
9517 }
9518
ae33bd81
JB		 9519 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9520 if (!ntrig) {
9521 err = -ENOMEM;
9522 goto error;
ff1b6e69 9523 }
ae33bd81 9524 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9525 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9526
ae33bd81 9527 set_wakeup:
6abb9cb9
JB		 9528 if (rdev->ops->set_wakeup &&
9529 prev_enabled != !!rdev->wiphy.wowlan_config)
9530 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9531
ff1b6e69
JB		 9532 return 0;
9533 error:
9534 for (i = 0; i < new_triggers.n_patterns; i++)
9535 kfree(new_triggers.patterns[i].mask);
9536 kfree(new_triggers.patterns);
2a0e047e
JB		 9537 if (new_triggers.tcp && new_triggers.tcp->sock)
9538 sock_release(new_triggers.tcp->sock);
9539 kfree(new_triggers.tcp);
e5dbe070 9540 kfree(new_triggers.nd_config);
ff1b6e69
JB		 9541 return err;
9542}
dfb89c56 9543#endif
ff1b6e69 9544
be29b99a
AK		 9545static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9546 struct cfg80211_registered_device *rdev)
9547{
9548 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9549 int i, j, pat_len;
9550 struct cfg80211_coalesce_rules *rule;
9551
9552 if (!rdev->coalesce->n_rules)
9553 return 0;
9554
9555 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9556 if (!nl_rules)
9557 return -ENOBUFS;
9558
9559 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9560 nl_rule = nla_nest_start(msg, i + 1);
9561 if (!nl_rule)
9562 return -ENOBUFS;
9563
9564 rule = &rdev->coalesce->rules[i];
9565 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9566 rule->delay))
9567 return -ENOBUFS;
9568
9569 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9570 rule->condition))
9571 return -ENOBUFS;
9572
9573 nl_pats = nla_nest_start(msg,
9574 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9575 if (!nl_pats)
9576 return -ENOBUFS;
9577
9578 for (j = 0; j < rule->n_patterns; j++) {
9579 nl_pat = nla_nest_start(msg, j + 1);
9580 if (!nl_pat)
9581 return -ENOBUFS;
9582 pat_len = rule->patterns[j].pattern_len;
9583 if (nla_put(msg, NL80211_PKTPAT_MASK,
9584 DIV_ROUND_UP(pat_len, 8),
9585 rule->patterns[j].mask) ||
9586 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9587 rule->patterns[j].pattern) ||
9588 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9589 rule->patterns[j].pkt_offset))
9590 return -ENOBUFS;
9591 nla_nest_end(msg, nl_pat);
9592 }
9593 nla_nest_end(msg, nl_pats);
9594 nla_nest_end(msg, nl_rule);
9595 }
9596 nla_nest_end(msg, nl_rules);
9597
9598 return 0;
9599}
9600
9601static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9602{
9603 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9604 struct sk_buff *msg;
9605 void *hdr;
9606
9607 if (!rdev->wiphy.coalesce)
9608 return -EOPNOTSUPP;
9609
9610 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9611 if (!msg)
9612 return -ENOMEM;
9613
9614 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9615 NL80211_CMD_GET_COALESCE);
9616 if (!hdr)
9617 goto nla_put_failure;
9618
9619 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9620 goto nla_put_failure;
9621
9622 genlmsg_end(msg, hdr);
9623 return genlmsg_reply(msg, info);
9624
9625nla_put_failure:
9626 nlmsg_free(msg);
9627 return -ENOBUFS;
9628}
9629
9630void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9631{
9632 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9633 int i, j;
9634 struct cfg80211_coalesce_rules *rule;
9635
9636 if (!coalesce)
9637 return;
9638
9639 for (i = 0; i < coalesce->n_rules; i++) {
9640 rule = &coalesce->rules[i];
9641 for (j = 0; j < rule->n_patterns; j++)
9642 kfree(rule->patterns[j].mask);
9643 kfree(rule->patterns);
9644 }
9645 kfree(coalesce->rules);
9646 kfree(coalesce);
9647 rdev->coalesce = NULL;
9648}
9649
9650static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9651 struct nlattr *rule,
9652 struct cfg80211_coalesce_rules *new_rule)
9653{
9654 int err, i;
9655 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9656 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9657 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9658 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9659
9660 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9661 nla_len(rule), nl80211_coalesce_policy);
9662 if (err)
9663 return err;
9664
9665 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9666 new_rule->delay =
9667 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9668 if (new_rule->delay > coalesce->max_delay)
9669 return -EINVAL;
9670
9671 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9672 new_rule->condition =
9673 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9674 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9675 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9676 return -EINVAL;
9677
9678 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9679 return -EINVAL;
9680
9681 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9682 rem)
9683 n_patterns++;
9684 if (n_patterns > coalesce->n_patterns)
9685 return -EINVAL;
9686
9687 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9688 GFP_KERNEL);
9689 if (!new_rule->patterns)
9690 return -ENOMEM;
9691
9692 new_rule->n_patterns = n_patterns;
9693 i = 0;
9694
9695 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9696 rem) {
922bd80f
JB		 9697 u8 *mask_pat;
9698
be29b99a
AK		 9699 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9700 nla_len(pat), NULL);
9701 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9702 !pat_tb[NL80211_PKTPAT_PATTERN])
9703 return -EINVAL;
9704 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9705 mask_len = DIV_ROUND_UP(pat_len, 8);
9706 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9707 return -EINVAL;
9708 if (pat_len > coalesce->pattern_max_len ||
9709 pat_len < coalesce->pattern_min_len)
9710 return -EINVAL;
9711
9712 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9713 pkt_offset = 0;
9714 else
9715 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9716 if (pkt_offset > coalesce->max_pkt_offset)
9717 return -EINVAL;
9718 new_rule->patterns[i].pkt_offset = pkt_offset;
9719
922bd80f
JB		 9720 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9721 if (!mask_pat)
be29b99a 9722 return -ENOMEM;
922bd80f
JB		 9723
9724 new_rule->patterns[i].mask = mask_pat;
9725 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9726 mask_len);
9727
9728 mask_pat += mask_len;
9729 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9730 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9731 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9732 pat_len);
be29b99a
AK		 9733 i++;
9734 }
9735
9736 return 0;
9737}
9738
9739static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9740{
9741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9742 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9743 struct cfg80211_coalesce new_coalesce = {};
9744 struct cfg80211_coalesce *n_coalesce;
9745 int err, rem_rule, n_rules = 0, i, j;
9746 struct nlattr *rule;
9747 struct cfg80211_coalesce_rules *tmp_rule;
9748
9749 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9750 return -EOPNOTSUPP;
9751
9752 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9753 cfg80211_rdev_free_coalesce(rdev);
a1056b1b 9754 rdev_set_coalesce(rdev, NULL);
be29b99a
AK		 9755 return 0;
9756 }
9757
9758 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9759 rem_rule)
9760 n_rules++;
9761 if (n_rules > coalesce->n_rules)
9762 return -EINVAL;
9763
9764 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9765 GFP_KERNEL);
9766 if (!new_coalesce.rules)
9767 return -ENOMEM;
9768
9769 new_coalesce.n_rules = n_rules;
9770 i = 0;
9771
9772 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9773 rem_rule) {
9774 err = nl80211_parse_coalesce_rule(rdev, rule,
9775 &new_coalesce.rules[i]);
9776 if (err)
9777 goto error;
9778
9779 i++;
9780 }
9781
a1056b1b 9782 err = rdev_set_coalesce(rdev, &new_coalesce);
be29b99a
AK		 9783 if (err)
9784 goto error;
9785
9786 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9787 if (!n_coalesce) {
9788 err = -ENOMEM;
9789 goto error;
9790 }
9791 cfg80211_rdev_free_coalesce(rdev);
9792 rdev->coalesce = n_coalesce;
9793
9794 return 0;
9795error:
9796 for (i = 0; i < new_coalesce.n_rules; i++) {
9797 tmp_rule = &new_coalesce.rules[i];
9798 for (j = 0; j < tmp_rule->n_patterns; j++)
9799 kfree(tmp_rule->patterns[j].mask);
9800 kfree(tmp_rule->patterns);
9801 }
9802 kfree(new_coalesce.rules);
9803
9804 return err;
9805}
9806
e5497d76
JB		 9807static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9808{
9809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9810 struct net_device *dev = info->user_ptr[1];
9811 struct wireless_dev *wdev = dev->ieee80211_ptr;
9812 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9813 struct cfg80211_gtk_rekey_data rekey_data;
9814 int err;
9815
9816 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9817 return -EINVAL;
9818
9819 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9820 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9821 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9822 nl80211_rekey_policy);
9823 if (err)
9824 return err;
9825
9826 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9827 return -ERANGE;
9828 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9829 return -ERANGE;
9830 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9831 return -ERANGE;
9832
78f686ca
JB		 9833 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9834 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9835 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9836
9837 wdev_lock(wdev);
9838 if (!wdev->current_bss) {
9839 err = -ENOTCONN;
9840 goto out;
9841 }
9842
9843 if (!rdev->ops->set_rekey_data) {
9844 err = -EOPNOTSUPP;
9845 goto out;
9846 }
9847
e35e4d28 9848 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9849 out:
9850 wdev_unlock(wdev);
9851 return err;
9852}
9853
28946da7
JB		 9854static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9855 struct genl_info *info)
9856{
9857 struct net_device *dev = info->user_ptr[1];
9858 struct wireless_dev *wdev = dev->ieee80211_ptr;
9859
9860 if (wdev->iftype != NL80211_IFTYPE_AP &&
9861 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9862 return -EINVAL;
9863
15e47304 9864 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9865 return -EBUSY;
9866
15e47304 9867 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9868 return 0;
9869}
9870
7f6cf311
JB		 9871static int nl80211_probe_client(struct sk_buff *skb,
9872 struct genl_info *info)
9873{
9874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9875 struct net_device *dev = info->user_ptr[1];
9876 struct wireless_dev *wdev = dev->ieee80211_ptr;
9877 struct sk_buff *msg;
9878 void *hdr;
9879 const u8 *addr;
9880 u64 cookie;
9881 int err;
9882
9883 if (wdev->iftype != NL80211_IFTYPE_AP &&
9884 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9885 return -EOPNOTSUPP;
9886
9887 if (!info->attrs[NL80211_ATTR_MAC])
9888 return -EINVAL;
9889
9890 if (!rdev->ops->probe_client)
9891 return -EOPNOTSUPP;
9892
9893 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9894 if (!msg)
9895 return -ENOMEM;
9896
15e47304 9897 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9898 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9899 if (!hdr) {
9900 err = -ENOBUFS;
7f6cf311
JB		 9901 goto free_msg;
9902 }
9903
9904 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9905
e35e4d28 9906 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9907 if (err)
9908 goto free_msg;
9909
9360ffd1
DM		 9910 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9911 goto nla_put_failure;
7f6cf311
JB		 9912
9913 genlmsg_end(msg, hdr);
9914
9915 return genlmsg_reply(msg, info);
9916
9917 nla_put_failure:
9918 err = -ENOBUFS;
9919 free_msg:
9920 nlmsg_free(msg);
9921 return err;
9922}
9923
5e760230
JB		 9924static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9925{
9926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9927 struct cfg80211_beacon_registration *reg, *nreg;
9928 int rv;
5e760230
JB		 9929
9930 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9931 return -EOPNOTSUPP;
9932
37c73b5f
BG		 9933 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9934 if (!nreg)
9935 return -ENOMEM;
9936
9937 /* First, check if already registered. */
9938 spin_lock_bh(&rdev->beacon_registrations_lock);
9939 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9940 if (reg->nlportid == info->snd_portid) {
9941 rv = -EALREADY;
9942 goto out_err;
9943 }
9944 }
9945 /* Add it to the list */
9946 nreg->nlportid = info->snd_portid;
9947 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9948
37c73b5f 9949 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9950
9951 return 0;
37c73b5f
BG		 9952out_err:
9953 spin_unlock_bh(&rdev->beacon_registrations_lock);
9954 kfree(nreg);
9955 return rv;
5e760230
JB		 9956}
9957
98104fde
JB		 9958static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9959{
9960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9961 struct wireless_dev *wdev = info->user_ptr[1];
9962 int err;
9963
9964 if (!rdev->ops->start_p2p_device)
9965 return -EOPNOTSUPP;
9966
9967 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9968 return -EOPNOTSUPP;
9969
9970 if (wdev->p2p_started)
9971 return 0;
9972
b6a55015
LC		 9973 if (rfkill_blocked(rdev->rfkill))
9974 return -ERFKILL;
98104fde 9975
eeb126e9 9976 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9977 if (err)
9978 return err;
9979
9980 wdev->p2p_started = true;
98104fde 9981 rdev->opencount++;
98104fde
JB		 9982
9983 return 0;
9984}
9985
9986static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9987{
9988 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9989 struct wireless_dev *wdev = info->user_ptr[1];
9990
9991 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9992 return -EOPNOTSUPP;
9993
9994 if (!rdev->ops->stop_p2p_device)
9995 return -EOPNOTSUPP;
9996
f9f47529 9997 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9998
9999 return 0;
10000}
10001
3713b4e3
JB		 10002static int nl80211_get_protocol_features(struct sk_buff *skb,
10003 struct genl_info *info)
10004{
10005 void *hdr;
10006 struct sk_buff *msg;
10007
10008 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10009 if (!msg)
10010 return -ENOMEM;
10011
10012 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10013 NL80211_CMD_GET_PROTOCOL_FEATURES);
10014 if (!hdr)
10015 goto nla_put_failure;
10016
10017 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10018 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10019 goto nla_put_failure;
10020
10021 genlmsg_end(msg, hdr);
10022 return genlmsg_reply(msg, info);
10023
10024 nla_put_failure:
10025 kfree_skb(msg);
10026 return -ENOBUFS;
10027}
10028
355199e0
JM		 10029static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10030{
10031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10032 struct cfg80211_update_ft_ies_params ft_params;
10033 struct net_device *dev = info->user_ptr[1];
10034
10035 if (!rdev->ops->update_ft_ies)
10036 return -EOPNOTSUPP;
10037
10038 if (!info->attrs[NL80211_ATTR_MDID] ||
10039 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10040 return -EINVAL;
10041
10042 memset(&ft_params, 0, sizeof(ft_params));
10043 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10044 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10045 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10046
10047 return rdev_update_ft_ies(rdev, dev, &ft_params);
10048}
10049
5de17984
AS		 10050static int nl80211_crit_protocol_start(struct sk_buff *skb,
10051 struct genl_info *info)
10052{
10053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10054 struct wireless_dev *wdev = info->user_ptr[1];
10055 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10056 u16 duration;
10057 int ret;
10058
10059 if (!rdev->ops->crit_proto_start)
10060 return -EOPNOTSUPP;
10061
10062 if (WARN_ON(!rdev->ops->crit_proto_stop))
10063 return -EINVAL;
10064
10065 if (rdev->crit_proto_nlportid)
10066 return -EBUSY;
10067
10068 /* determine protocol if provided */
10069 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10070 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10071
10072 if (proto >= NUM_NL80211_CRIT_PROTO)
10073 return -EINVAL;
10074
10075 /* timeout must be provided */
10076 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10077 return -EINVAL;
10078
10079 duration =
10080 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10081
10082 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10083 return -ERANGE;
10084
10085 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10086 if (!ret)
10087 rdev->crit_proto_nlportid = info->snd_portid;
10088
10089 return ret;
10090}
10091
10092static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10093 struct genl_info *info)
10094{
10095 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10096 struct wireless_dev *wdev = info->user_ptr[1];
10097
10098 if (!rdev->ops->crit_proto_stop)
10099 return -EOPNOTSUPP;
10100
10101 if (rdev->crit_proto_nlportid) {
10102 rdev->crit_proto_nlportid = 0;
10103 rdev_crit_proto_stop(rdev, wdev);
10104 }
10105 return 0;
10106}
10107
ad7e718c
JB		 10108static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10109{
10110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10111 struct wireless_dev *wdev =
10112 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10113 int i, err;
10114 u32 vid, subcmd;
10115
10116 if (!rdev->wiphy.vendor_commands)
10117 return -EOPNOTSUPP;
10118
10119 if (IS_ERR(wdev)) {
10120 err = PTR_ERR(wdev);
10121 if (err != -EINVAL)
10122 return err;
10123 wdev = NULL;
10124 } else if (wdev->wiphy != &rdev->wiphy) {
10125 return -EINVAL;
10126 }
10127
10128 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10129 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10130 return -EINVAL;
10131
10132 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10133 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10134 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10135 const struct wiphy_vendor_command *vcmd;
10136 void *data = NULL;
10137 int len = 0;
10138
10139 vcmd = &rdev->wiphy.vendor_commands[i];
10140
10141 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10142 continue;
10143
10144 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10145 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10146 if (!wdev)
10147 return -EINVAL;
10148 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10149 !wdev->netdev)
10150 return -EINVAL;
10151
10152 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10153 if (wdev->netdev &&
10154 !netif_running(wdev->netdev))
10155 return -ENETDOWN;
10156 if (!wdev->netdev && !wdev->p2p_started)
10157 return -ENETDOWN;
10158 }
7bdbe400
JB		 10159
10160 if (!vcmd->doit)
10161 return -EOPNOTSUPP;
ad7e718c
JB		 10162 } else {
10163 wdev = NULL;
10164 }
10165
10166 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10167 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10168 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10169 }
10170
10171 rdev->cur_cmd_info = info;
10172 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10173 data, len);
10174 rdev->cur_cmd_info = NULL;
10175 return err;
10176 }
10177
10178 return -EOPNOTSUPP;
10179}
10180
7bdbe400
JB		 10181static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10182 struct netlink_callback *cb,
10183 struct cfg80211_registered_device **rdev,
10184 struct wireless_dev **wdev)
10185{
10186 u32 vid, subcmd;
10187 unsigned int i;
10188 int vcmd_idx = -1;
10189 int err;
10190 void *data = NULL;
10191 unsigned int data_len = 0;
10192
10193 rtnl_lock();
10194
10195 if (cb->args[0]) {
10196 /* subtract the 1 again here */
10197 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10198 struct wireless_dev *tmp;
10199
10200 if (!wiphy) {
10201 err = -ENODEV;
10202 goto out_unlock;
10203 }
10204 *rdev = wiphy_to_rdev(wiphy);
10205 *wdev = NULL;
10206
10207 if (cb->args[1]) {
10208 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
10209 if (tmp->identifier == cb->args[1] - 1) {
10210 *wdev = tmp;
10211 break;
10212 }
10213 }
10214 }
10215
10216 /* keep rtnl locked in successful case */
10217 return 0;
10218 }
10219
10220 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10221 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10222 nl80211_policy);
10223 if (err)
10224 goto out_unlock;
10225
10226 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10227 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10228 err = -EINVAL;
10229 goto out_unlock;
10230 }
10231
10232 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10233 nl80211_fam.attrbuf);
10234 if (IS_ERR(*wdev))
10235 *wdev = NULL;
10236
10237 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10238 nl80211_fam.attrbuf);
10239 if (IS_ERR(*rdev)) {
10240 err = PTR_ERR(*rdev);
10241 goto out_unlock;
10242 }
10243
10244 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10245 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10246
10247 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10248 const struct wiphy_vendor_command *vcmd;
10249
10250 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10251
10252 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10253 continue;
10254
10255 if (!vcmd->dumpit) {
10256 err = -EOPNOTSUPP;
10257 goto out_unlock;
10258 }
10259
10260 vcmd_idx = i;
10261 break;
10262 }
10263
10264 if (vcmd_idx < 0) {
10265 err = -EOPNOTSUPP;
10266 goto out_unlock;
10267 }
10268
10269 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10270 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10271 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10272 }
10273
10274 /* 0 is the first index - add 1 to parse only once */
10275 cb->args[0] = (*rdev)->wiphy_idx + 1;
10276 /* add 1 to know if it was NULL */
10277 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10278 cb->args[2] = vcmd_idx;
10279 cb->args[3] = (unsigned long)data;
10280 cb->args[4] = data_len;
10281
10282 /* keep rtnl locked in successful case */
10283 return 0;
10284 out_unlock:
10285 rtnl_unlock();
10286 return err;
10287}
10288
10289static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10290 struct netlink_callback *cb)
10291{
10292 struct cfg80211_registered_device *rdev;
10293 struct wireless_dev *wdev;
10294 unsigned int vcmd_idx;
10295 const struct wiphy_vendor_command *vcmd;
10296 void *data;
10297 int data_len;
10298 int err;
10299 struct nlattr *vendor_data;
10300
10301 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10302 if (err)
10303 return err;
10304
10305 vcmd_idx = cb->args[2];
10306 data = (void *)cb->args[3];
10307 data_len = cb->args[4];
10308 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10309
10310 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10311 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10312 if (!wdev)
10313 return -EINVAL;
10314 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10315 !wdev->netdev)
10316 return -EINVAL;
10317
10318 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10319 if (wdev->netdev &&
10320 !netif_running(wdev->netdev))
10321 return -ENETDOWN;
10322 if (!wdev->netdev && !wdev->p2p_started)
10323 return -ENETDOWN;
10324 }
10325 }
10326
10327 while (1) {
10328 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10329 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10330 NL80211_CMD_VENDOR);
10331 if (!hdr)
10332 break;
10333
10334 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10335 (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV,
10336 wdev_id(wdev)))) {
10337 genlmsg_cancel(skb, hdr);
10338 break;
10339 }
10340
10341 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10342 if (!vendor_data) {
10343 genlmsg_cancel(skb, hdr);
10344 break;
10345 }
10346
10347 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10348 (unsigned long *)&cb->args[5]);
10349 nla_nest_end(skb, vendor_data);
10350
10351 if (err == -ENOBUFS || err == -ENOENT) {
10352 genlmsg_cancel(skb, hdr);
10353 break;
10354 } else if (err) {
10355 genlmsg_cancel(skb, hdr);
10356 goto out;
10357 }
10358
10359 genlmsg_end(skb, hdr);
10360 }
10361
10362 err = skb->len;
10363 out:
10364 rtnl_unlock();
10365 return err;
10366}
10367
ad7e718c
JB		 10368struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10369 enum nl80211_commands cmd,
10370 enum nl80211_attrs attr,
10371 int approxlen)
10372{
f26cbf40 10373 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 10374
10375 if (WARN_ON(!rdev->cur_cmd_info))
10376 return NULL;
10377
6c09e791 10378 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 10379 rdev->cur_cmd_info->snd_portid,
10380 rdev->cur_cmd_info->snd_seq,
567ffc35 10381 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 10382}
10383EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10384
10385int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10386{
10387 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10388 void *hdr = ((void **)skb->cb)[1];
10389 struct nlattr *data = ((void **)skb->cb)[2];
10390
bd8c78e7
JB		 10391 /* clear CB data for netlink core to own from now on */
10392 memset(skb->cb, 0, sizeof(skb->cb));
10393
ad7e718c
JB		 10394 if (WARN_ON(!rdev->cur_cmd_info)) {
10395 kfree_skb(skb);
10396 return -EINVAL;
10397 }
10398
10399 nla_nest_end(skb, data);
10400 genlmsg_end(skb, hdr);
10401 return genlmsg_reply(skb, rdev->cur_cmd_info);
10402}
10403EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10404
10405
fa9ffc74
KP		 10406static int nl80211_set_qos_map(struct sk_buff *skb,
10407 struct genl_info *info)
10408{
10409 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10410 struct cfg80211_qos_map *qos_map = NULL;
10411 struct net_device *dev = info->user_ptr[1];
10412 u8 *pos, len, num_des, des_len, des;
10413 int ret;
10414
10415 if (!rdev->ops->set_qos_map)
10416 return -EOPNOTSUPP;
10417
10418 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10419 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10420 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10421
10422 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10423 len > IEEE80211_QOS_MAP_LEN_MAX)
10424 return -EINVAL;
10425
10426 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10427 if (!qos_map)
10428 return -ENOMEM;
10429
10430 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10431 if (num_des) {
10432 des_len = num_des *
10433 sizeof(struct cfg80211_dscp_exception);
10434 memcpy(qos_map->dscp_exception, pos, des_len);
10435 qos_map->num_des = num_des;
10436 for (des = 0; des < num_des; des++) {
10437 if (qos_map->dscp_exception[des].up > 7) {
10438 kfree(qos_map);
10439 return -EINVAL;
10440 }
10441 }
10442 pos += des_len;
10443 }
10444 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10445 }
10446
10447 wdev_lock(dev->ieee80211_ptr);
10448 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10449 if (!ret)
10450 ret = rdev_set_qos_map(rdev, dev, qos_map);
10451 wdev_unlock(dev->ieee80211_ptr);
10452
10453 kfree(qos_map);
10454 return ret;
10455}
10456
960d01ac
JB		 10457static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10458{
10459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10460 struct net_device *dev = info->user_ptr[1];
10461 struct wireless_dev *wdev = dev->ieee80211_ptr;
10462 const u8 *peer;
10463 u8 tsid, up;
10464 u16 admitted_time = 0;
10465 int err;
10466
723e73ac 10467 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10468 return -EOPNOTSUPP;
10469
10470 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10471 !info->attrs[NL80211_ATTR_USER_PRIO])
10472 return -EINVAL;
10473
10474 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10475 if (tsid >= IEEE80211_NUM_TIDS)
10476 return -EINVAL;
10477
10478 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10479 if (up >= IEEE80211_NUM_UPS)
10480 return -EINVAL;
10481
10482 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10483 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10484 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10485 * need more attributes for that (e.g. BA session requirement);
10486 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10487 */
10488 return -EINVAL;
10489 }
10490
10491 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10492
10493 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10494 admitted_time =
10495 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10496 if (!admitted_time)
10497 return -EINVAL;
10498 }
10499
10500 wdev_lock(wdev);
10501 switch (wdev->iftype) {
10502 case NL80211_IFTYPE_STATION:
10503 case NL80211_IFTYPE_P2P_CLIENT:
10504 if (wdev->current_bss)
10505 break;
10506 err = -ENOTCONN;
10507 goto out;
10508 default:
10509 err = -EOPNOTSUPP;
10510 goto out;
10511 }
10512
10513 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10514
10515 out:
10516 wdev_unlock(wdev);
10517 return err;
10518}
10519
10520static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10521{
10522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10523 struct net_device *dev = info->user_ptr[1];
10524 struct wireless_dev *wdev = dev->ieee80211_ptr;
10525 const u8 *peer;
10526 u8 tsid;
10527 int err;
10528
10529 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10530 return -EINVAL;
10531
10532 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10533 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10534
10535 wdev_lock(wdev);
10536 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10537 wdev_unlock(wdev);
10538
10539 return err;
10540}
10541
1057d35e
AN		 10542static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10543 struct genl_info *info)
10544{
10545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10546 struct net_device *dev = info->user_ptr[1];
10547 struct wireless_dev *wdev = dev->ieee80211_ptr;
10548 struct cfg80211_chan_def chandef = {};
10549 const u8 *addr;
10550 u8 oper_class;
10551 int err;
10552
10553 if (!rdev->ops->tdls_channel_switch ||
10554 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10555 return -EOPNOTSUPP;
10556
10557 switch (dev->ieee80211_ptr->iftype) {
10558 case NL80211_IFTYPE_STATION:
10559 case NL80211_IFTYPE_P2P_CLIENT:
10560 break;
10561 default:
10562 return -EOPNOTSUPP;
10563 }
10564
10565 if (!info->attrs[NL80211_ATTR_MAC] ||
10566 !info->attrs[NL80211_ATTR_OPER_CLASS])
10567 return -EINVAL;
10568
10569 err = nl80211_parse_chandef(rdev, info, &chandef);
10570 if (err)
10571 return err;
10572
10573 /*
10574 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10575 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10576 * specification is not defined for them.
10577 */
10578 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10579 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10580 chandef.width != NL80211_CHAN_WIDTH_20)
10581 return -EINVAL;
10582
10583 /* we will be active on the TDLS link */
923b352f
AN		 10584 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10585 wdev->iftype))
1057d35e
AN		 10586 return -EINVAL;
10587
10588 /* don't allow switching to DFS channels */
10589 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10590 return -EINVAL;
10591
10592 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10593 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10594
10595 wdev_lock(wdev);
10596 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10597 wdev_unlock(wdev);
10598
10599 return err;
10600}
10601
10602static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10603 struct genl_info *info)
10604{
10605 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10606 struct net_device *dev = info->user_ptr[1];
10607 struct wireless_dev *wdev = dev->ieee80211_ptr;
10608 const u8 *addr;
10609
10610 if (!rdev->ops->tdls_channel_switch ||
10611 !rdev->ops->tdls_cancel_channel_switch ||
10612 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10613 return -EOPNOTSUPP;
10614
10615 switch (dev->ieee80211_ptr->iftype) {
10616 case NL80211_IFTYPE_STATION:
10617 case NL80211_IFTYPE_P2P_CLIENT:
10618 break;
10619 default:
10620 return -EOPNOTSUPP;
10621 }
10622
10623 if (!info->attrs[NL80211_ATTR_MAC])
10624 return -EINVAL;
10625
10626 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10627
10628 wdev_lock(wdev);
10629 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10630 wdev_unlock(wdev);
10631
10632 return 0;
10633}
10634
4c476991
JB		 10635#define NL80211_FLAG_NEED_WIPHY 0x01
10636#define NL80211_FLAG_NEED_NETDEV 0x02
10637#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10638#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10639#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10640 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10641#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10642/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10643#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10644 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10645#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10646
f84f771d 10647static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10648 struct genl_info *info)
10649{
10650 struct cfg80211_registered_device *rdev;
89a54e48 10651 struct wireless_dev *wdev;
4c476991 10652 struct net_device *dev;
4c476991
JB		 10653 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10654
10655 if (rtnl)
10656 rtnl_lock();
10657
10658 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10659 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10660 if (IS_ERR(rdev)) {
10661 if (rtnl)
10662 rtnl_unlock();
10663 return PTR_ERR(rdev);
10664 }
10665 info->user_ptr[0] = rdev;
1bf614ef
JB		 10666 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10667 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10668 ASSERT_RTNL();
10669
89a54e48
JB		 10670 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10671 info->attrs);
10672 if (IS_ERR(wdev)) {
4c476991
JB		 10673 if (rtnl)
10674 rtnl_unlock();
89a54e48 10675 return PTR_ERR(wdev);
4c476991 10676 }
89a54e48 10677
89a54e48 10678 dev = wdev->netdev;
f26cbf40 10679 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10680
1bf614ef
JB		 10681 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10682 if (!dev) {
1bf614ef
JB		 10683 if (rtnl)
10684 rtnl_unlock();
10685 return -EINVAL;
10686 }
10687
10688 info->user_ptr[1] = dev;
10689 } else {
10690 info->user_ptr[1] = wdev;
41265714 10691 }
1bf614ef
JB		 10692
10693 if (dev) {
10694 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10695 !netif_running(dev)) {
1bf614ef
JB		 10696 if (rtnl)
10697 rtnl_unlock();
10698 return -ENETDOWN;
10699 }
10700
10701 dev_hold(dev);
98104fde
JB		 10702 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10703 if (!wdev->p2p_started) {
98104fde
JB		 10704 if (rtnl)
10705 rtnl_unlock();
10706 return -ENETDOWN;
10707 }
41265714 10708 }
89a54e48 10709
4c476991 10710 info->user_ptr[0] = rdev;
4c476991
JB		 10711 }
10712
10713 return 0;
10714}
10715
f84f771d 10716static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10717 struct genl_info *info)
10718{
1bf614ef
JB		 10719 if (info->user_ptr[1]) {
10720 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10721 struct wireless_dev *wdev = info->user_ptr[1];
10722
10723 if (wdev->netdev)
10724 dev_put(wdev->netdev);
10725 } else {
10726 dev_put(info->user_ptr[1]);
10727 }
10728 }
5393b917 10729
4c476991
JB		 10730 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10731 rtnl_unlock();
5393b917
JB		 10732
10733 /* If needed, clear the netlink message payload from the SKB
10734 * as it might contain key data that shouldn't stick around on
10735 * the heap after the SKB is freed. The netlink message header
10736 * is still needed for further processing, so leave it intact.
10737 */
10738 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10739 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10740
10741 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10742 }
4c476991
JB		 10743}
10744
4534de83 10745static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10746 {
10747 .cmd = NL80211_CMD_GET_WIPHY,
10748 .doit = nl80211_get_wiphy,
10749 .dumpit = nl80211_dump_wiphy,
86e8cf98 10750 .done = nl80211_dump_wiphy_done,
55682965
JB		 10751 .policy = nl80211_policy,
10752 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10753 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10754 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10755 },
10756 {
10757 .cmd = NL80211_CMD_SET_WIPHY,
10758 .doit = nl80211_set_wiphy,
10759 .policy = nl80211_policy,
10760 .flags = GENL_ADMIN_PERM,
4c476991 10761 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10762 },
10763 {
10764 .cmd = NL80211_CMD_GET_INTERFACE,
10765 .doit = nl80211_get_interface,
10766 .dumpit = nl80211_dump_interface,
10767 .policy = nl80211_policy,
10768 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10769 .internal_flags = NL80211_FLAG_NEED_WDEV |
10770 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10771 },
10772 {
10773 .cmd = NL80211_CMD_SET_INTERFACE,
10774 .doit = nl80211_set_interface,
10775 .policy = nl80211_policy,
10776 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10777 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10778 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10779 },
10780 {
10781 .cmd = NL80211_CMD_NEW_INTERFACE,
10782 .doit = nl80211_new_interface,
10783 .policy = nl80211_policy,
10784 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10785 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10786 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10787 },
10788 {
10789 .cmd = NL80211_CMD_DEL_INTERFACE,
10790 .doit = nl80211_del_interface,
10791 .policy = nl80211_policy,
41ade00f 10792 .flags = GENL_ADMIN_PERM,
84efbb84 10793 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10794 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10795 },
10796 {
10797 .cmd = NL80211_CMD_GET_KEY,
10798 .doit = nl80211_get_key,
10799 .policy = nl80211_policy,
10800 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10801 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10802 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10803 },
10804 {
10805 .cmd = NL80211_CMD_SET_KEY,
10806 .doit = nl80211_set_key,
10807 .policy = nl80211_policy,
10808 .flags = GENL_ADMIN_PERM,
41265714 10809 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10810 NL80211_FLAG_NEED_RTNL |
10811 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10812 },
10813 {
10814 .cmd = NL80211_CMD_NEW_KEY,
10815 .doit = nl80211_new_key,
10816 .policy = nl80211_policy,
10817 .flags = GENL_ADMIN_PERM,
41265714 10818 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10819 NL80211_FLAG_NEED_RTNL |
10820 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10821 },
10822 {
10823 .cmd = NL80211_CMD_DEL_KEY,
10824 .doit = nl80211_del_key,
10825 .policy = nl80211_policy,
55682965 10826 .flags = GENL_ADMIN_PERM,
41265714 10827 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10828 NL80211_FLAG_NEED_RTNL,
55682965 10829 },
ed1b6cc7
JB		 10830 {
10831 .cmd = NL80211_CMD_SET_BEACON,
10832 .policy = nl80211_policy,
10833 .flags = GENL_ADMIN_PERM,
8860020e 10834 .doit = nl80211_set_beacon,
2b5f8b0b 10835 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10836 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10837 },
10838 {
8860020e 10839 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10840 .policy = nl80211_policy,
10841 .flags = GENL_ADMIN_PERM,
8860020e 10842 .doit = nl80211_start_ap,
2b5f8b0b 10843 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10844 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10845 },
10846 {
8860020e 10847 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10848 .policy = nl80211_policy,
10849 .flags = GENL_ADMIN_PERM,
8860020e 10850 .doit = nl80211_stop_ap,
2b5f8b0b 10851 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10852 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10853 },
5727ef1b
JB		 10854 {
10855 .cmd = NL80211_CMD_GET_STATION,
10856 .doit = nl80211_get_station,
2ec600d6 10857 .dumpit = nl80211_dump_station,
5727ef1b 10858 .policy = nl80211_policy,
4c476991
JB		 10859 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10860 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10861 },
10862 {
10863 .cmd = NL80211_CMD_SET_STATION,
10864 .doit = nl80211_set_station,
10865 .policy = nl80211_policy,
10866 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10867 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10868 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10869 },
10870 {
10871 .cmd = NL80211_CMD_NEW_STATION,
10872 .doit = nl80211_new_station,
10873 .policy = nl80211_policy,
10874 .flags = GENL_ADMIN_PERM,
41265714 10875 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10876 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10877 },
10878 {
10879 .cmd = NL80211_CMD_DEL_STATION,
10880 .doit = nl80211_del_station,
10881 .policy = nl80211_policy,
2ec600d6 10882 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10883 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10884 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10885 },
10886 {
10887 .cmd = NL80211_CMD_GET_MPATH,
10888 .doit = nl80211_get_mpath,
10889 .dumpit = nl80211_dump_mpath,
10890 .policy = nl80211_policy,
10891 .flags = GENL_ADMIN_PERM,
41265714 10892 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10893 NL80211_FLAG_NEED_RTNL,
2ec600d6 10894 },
66be7d2b
HR		 10895 {
10896 .cmd = NL80211_CMD_GET_MPP,
10897 .doit = nl80211_get_mpp,
10898 .dumpit = nl80211_dump_mpp,
10899 .policy = nl80211_policy,
10900 .flags = GENL_ADMIN_PERM,
10901 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10902 NL80211_FLAG_NEED_RTNL,
10903 },
2ec600d6
LCC		 10904 {
10905 .cmd = NL80211_CMD_SET_MPATH,
10906 .doit = nl80211_set_mpath,
10907 .policy = nl80211_policy,
10908 .flags = GENL_ADMIN_PERM,
41265714 10909 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10910 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10911 },
10912 {
10913 .cmd = NL80211_CMD_NEW_MPATH,
10914 .doit = nl80211_new_mpath,
10915 .policy = nl80211_policy,
10916 .flags = GENL_ADMIN_PERM,
41265714 10917 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10918 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10919 },
10920 {
10921 .cmd = NL80211_CMD_DEL_MPATH,
10922 .doit = nl80211_del_mpath,
10923 .policy = nl80211_policy,
9f1ba906 10924 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10925 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10926 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10927 },
10928 {
10929 .cmd = NL80211_CMD_SET_BSS,
10930 .doit = nl80211_set_bss,
10931 .policy = nl80211_policy,
b2e1b302 10932 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10933 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10934 NL80211_FLAG_NEED_RTNL,
b2e1b302 10935 },
f130347c
LR		 10936 {
10937 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10938 .doit = nl80211_get_reg_do,
10939 .dumpit = nl80211_get_reg_dump,
f130347c 10940 .policy = nl80211_policy,
5fe231e8 10941 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10942 /* can be retrieved by unprivileged users */
10943 },
b6863036 10944#ifdef CONFIG_CFG80211_CRDA_SUPPORT
b2e1b302
LR		 10945 {
10946 .cmd = NL80211_CMD_SET_REG,
10947 .doit = nl80211_set_reg,
10948 .policy = nl80211_policy,
10949 .flags = GENL_ADMIN_PERM,
5fe231e8 10950 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302 10951 },
b6863036 10952#endif
b2e1b302
LR		 10953 {
10954 .cmd = NL80211_CMD_REQ_SET_REG,
10955 .doit = nl80211_req_set_reg,
10956 .policy = nl80211_policy,
93da9cc1 10957 .flags = GENL_ADMIN_PERM,
10958 },
10959 {
24bdd9f4
JC		 10960 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10961 .doit = nl80211_get_mesh_config,
93da9cc1 10962 .policy = nl80211_policy,
10963 /* can be retrieved by unprivileged users */
2b5f8b0b 10964 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10965 NL80211_FLAG_NEED_RTNL,
93da9cc1 10966 },
10967 {
24bdd9f4
JC		 10968 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10969 .doit = nl80211_update_mesh_config,
93da9cc1 10970 .policy = nl80211_policy,
9aed3cc1 10971 .flags = GENL_ADMIN_PERM,
29cbe68c 10972 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10973 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10974 },
2a519311
JB		 10975 {
10976 .cmd = NL80211_CMD_TRIGGER_SCAN,
10977 .doit = nl80211_trigger_scan,
10978 .policy = nl80211_policy,
10979 .flags = GENL_ADMIN_PERM,
fd014284 10980 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10981 NL80211_FLAG_NEED_RTNL,
2a519311 10982 },
91d3ab46
VK		 10983 {
10984 .cmd = NL80211_CMD_ABORT_SCAN,
10985 .doit = nl80211_abort_scan,
10986 .policy = nl80211_policy,
10987 .flags = GENL_ADMIN_PERM,
10988 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10989 NL80211_FLAG_NEED_RTNL,
10990 },
2a519311
JB		 10991 {
10992 .cmd = NL80211_CMD_GET_SCAN,
10993 .policy = nl80211_policy,
10994 .dumpit = nl80211_dump_scan,
10995 },
807f8a8c
LC		 10996 {
10997 .cmd = NL80211_CMD_START_SCHED_SCAN,
10998 .doit = nl80211_start_sched_scan,
10999 .policy = nl80211_policy,
11000 .flags = GENL_ADMIN_PERM,
11001 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11002 NL80211_FLAG_NEED_RTNL,
11003 },
11004 {
11005 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11006 .doit = nl80211_stop_sched_scan,
11007 .policy = nl80211_policy,
11008 .flags = GENL_ADMIN_PERM,
11009 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11010 NL80211_FLAG_NEED_RTNL,
11011 },
636a5d36
JM		 11012 {
11013 .cmd = NL80211_CMD_AUTHENTICATE,
11014 .doit = nl80211_authenticate,
11015 .policy = nl80211_policy,
11016 .flags = GENL_ADMIN_PERM,
41265714 11017 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11018 NL80211_FLAG_NEED_RTNL |
11019 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 11020 },
11021 {
11022 .cmd = NL80211_CMD_ASSOCIATE,
11023 .doit = nl80211_associate,
11024 .policy = nl80211_policy,
11025 .flags = GENL_ADMIN_PERM,
41265714 11026 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11027 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11028 },
11029 {
11030 .cmd = NL80211_CMD_DEAUTHENTICATE,
11031 .doit = nl80211_deauthenticate,
11032 .policy = nl80211_policy,
11033 .flags = GENL_ADMIN_PERM,
41265714 11034 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11035 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 11036 },
11037 {
11038 .cmd = NL80211_CMD_DISASSOCIATE,
11039 .doit = nl80211_disassociate,
11040 .policy = nl80211_policy,
11041 .flags = GENL_ADMIN_PERM,
41265714 11042 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11043 NL80211_FLAG_NEED_RTNL,
636a5d36 11044 },
04a773ad
JB		 11045 {
11046 .cmd = NL80211_CMD_JOIN_IBSS,
11047 .doit = nl80211_join_ibss,
11048 .policy = nl80211_policy,
11049 .flags = GENL_ADMIN_PERM,
41265714 11050 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11051 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 11052 },
11053 {
11054 .cmd = NL80211_CMD_LEAVE_IBSS,
11055 .doit = nl80211_leave_ibss,
11056 .policy = nl80211_policy,
11057 .flags = GENL_ADMIN_PERM,
41265714 11058 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11059 NL80211_FLAG_NEED_RTNL,
04a773ad 11060 },
aff89a9b
JB		 11061#ifdef CONFIG_NL80211_TESTMODE
11062 {
11063 .cmd = NL80211_CMD_TESTMODE,
11064 .doit = nl80211_testmode_do,
71063f0e 11065 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 11066 .policy = nl80211_policy,
11067 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11068 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11069 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 11070 },
11071#endif
b23aa676
SO		 11072 {
11073 .cmd = NL80211_CMD_CONNECT,
11074 .doit = nl80211_connect,
11075 .policy = nl80211_policy,
11076 .flags = GENL_ADMIN_PERM,
41265714 11077 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11078 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 11079 },
11080 {
11081 .cmd = NL80211_CMD_DISCONNECT,
11082 .doit = nl80211_disconnect,
11083 .policy = nl80211_policy,
11084 .flags = GENL_ADMIN_PERM,
41265714 11085 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11086 NL80211_FLAG_NEED_RTNL,
b23aa676 11087 },
463d0183
JB		 11088 {
11089 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11090 .doit = nl80211_wiphy_netns,
11091 .policy = nl80211_policy,
11092 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11093 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11094 NL80211_FLAG_NEED_RTNL,
463d0183 11095 },
61fa713c
HS		 11096 {
11097 .cmd = NL80211_CMD_GET_SURVEY,
11098 .policy = nl80211_policy,
11099 .dumpit = nl80211_dump_survey,
11100 },
67fbb16b
SO		 11101 {
11102 .cmd = NL80211_CMD_SET_PMKSA,
11103 .doit = nl80211_setdel_pmksa,
11104 .policy = nl80211_policy,
11105 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11106 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11107 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11108 },
11109 {
11110 .cmd = NL80211_CMD_DEL_PMKSA,
11111 .doit = nl80211_setdel_pmksa,
11112 .policy = nl80211_policy,
11113 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11114 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11115 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 11116 },
11117 {
11118 .cmd = NL80211_CMD_FLUSH_PMKSA,
11119 .doit = nl80211_flush_pmksa,
11120 .policy = nl80211_policy,
11121 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11122 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 11123 NL80211_FLAG_NEED_RTNL,
67fbb16b 11124 },
9588bbd5
JM		 11125 {
11126 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11127 .doit = nl80211_remain_on_channel,
11128 .policy = nl80211_policy,
11129 .flags = GENL_ADMIN_PERM,
71bbc994 11130 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11131 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 11132 },
11133 {
11134 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11135 .doit = nl80211_cancel_remain_on_channel,
11136 .policy = nl80211_policy,
11137 .flags = GENL_ADMIN_PERM,
71bbc994 11138 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11139 NL80211_FLAG_NEED_RTNL,
9588bbd5 11140 },
13ae75b1
JM		 11141 {
11142 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11143 .doit = nl80211_set_tx_bitrate_mask,
11144 .policy = nl80211_policy,
11145 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11146 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11147 NL80211_FLAG_NEED_RTNL,
13ae75b1 11148 },
026331c4 11149 {
2e161f78
JB		 11150 .cmd = NL80211_CMD_REGISTER_FRAME,
11151 .doit = nl80211_register_mgmt,
026331c4
JM		 11152 .policy = nl80211_policy,
11153 .flags = GENL_ADMIN_PERM,
71bbc994 11154 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 11155 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 11156 },
11157 {
2e161f78
JB		 11158 .cmd = NL80211_CMD_FRAME,
11159 .doit = nl80211_tx_mgmt,
026331c4 11160 .policy = nl80211_policy,
f7ca38df 11161 .flags = GENL_ADMIN_PERM,
71bbc994 11162 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 11163 NL80211_FLAG_NEED_RTNL,
11164 },
11165 {
11166 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11167 .doit = nl80211_tx_mgmt_cancel_wait,
11168 .policy = nl80211_policy,
026331c4 11169 .flags = GENL_ADMIN_PERM,
71bbc994 11170 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 11171 NL80211_FLAG_NEED_RTNL,
026331c4 11172 },
ffb9eb3d
KV		 11173 {
11174 .cmd = NL80211_CMD_SET_POWER_SAVE,
11175 .doit = nl80211_set_power_save,
11176 .policy = nl80211_policy,
11177 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11178 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11179 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 11180 },
11181 {
11182 .cmd = NL80211_CMD_GET_POWER_SAVE,
11183 .doit = nl80211_get_power_save,
11184 .policy = nl80211_policy,
11185 /* can be retrieved by unprivileged users */
4c476991
JB		 11186 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11187 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 11188 },
d6dc1a38
JO		 11189 {
11190 .cmd = NL80211_CMD_SET_CQM,
11191 .doit = nl80211_set_cqm,
11192 .policy = nl80211_policy,
11193 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11194 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11195 NL80211_FLAG_NEED_RTNL,
d6dc1a38 11196 },
f444de05
JB		 11197 {
11198 .cmd = NL80211_CMD_SET_CHANNEL,
11199 .doit = nl80211_set_channel,
11200 .policy = nl80211_policy,
11201 .flags = GENL_ADMIN_PERM,
4c476991
JB		 11202 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11203 NL80211_FLAG_NEED_RTNL,
f444de05 11204 },
e8347eba
BJ		 11205 {
11206 .cmd = NL80211_CMD_SET_WDS_PEER,
11207 .doit = nl80211_set_wds_peer,
11208 .policy = nl80211_policy,
11209 .flags = GENL_ADMIN_PERM,
43b19952
JB		 11210 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11211 NL80211_FLAG_NEED_RTNL,
e8347eba 11212 },
29cbe68c
JB		 11213 {
11214 .cmd = NL80211_CMD_JOIN_MESH,
11215 .doit = nl80211_join_mesh,
11216 .policy = nl80211_policy,
11217 .flags = GENL_ADMIN_PERM,
11218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11219 NL80211_FLAG_NEED_RTNL,
11220 },
11221 {
11222 .cmd = NL80211_CMD_LEAVE_MESH,
11223 .doit = nl80211_leave_mesh,
11224 .policy = nl80211_policy,
11225 .flags = GENL_ADMIN_PERM,
11226 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11227 NL80211_FLAG_NEED_RTNL,
11228 },
6e0bd6c3
RL		 11229 {
11230 .cmd = NL80211_CMD_JOIN_OCB,
11231 .doit = nl80211_join_ocb,
11232 .policy = nl80211_policy,
11233 .flags = GENL_ADMIN_PERM,
11234 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11235 NL80211_FLAG_NEED_RTNL,
11236 },
11237 {
11238 .cmd = NL80211_CMD_LEAVE_OCB,
11239 .doit = nl80211_leave_ocb,
11240 .policy = nl80211_policy,
11241 .flags = GENL_ADMIN_PERM,
11242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11243 NL80211_FLAG_NEED_RTNL,
11244 },
dfb89c56 11245#ifdef CONFIG_PM
ff1b6e69
JB		 11246 {
11247 .cmd = NL80211_CMD_GET_WOWLAN,
11248 .doit = nl80211_get_wowlan,
11249 .policy = nl80211_policy,
11250 /* can be retrieved by unprivileged users */
11251 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11252 NL80211_FLAG_NEED_RTNL,
11253 },
11254 {
11255 .cmd = NL80211_CMD_SET_WOWLAN,
11256 .doit = nl80211_set_wowlan,
11257 .policy = nl80211_policy,
11258 .flags = GENL_ADMIN_PERM,
11259 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11260 NL80211_FLAG_NEED_RTNL,
11261 },
dfb89c56 11262#endif
e5497d76
JB		 11263 {
11264 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11265 .doit = nl80211_set_rekey_data,
11266 .policy = nl80211_policy,
11267 .flags = GENL_ADMIN_PERM,
11268 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 11269 NL80211_FLAG_NEED_RTNL |
11270 NL80211_FLAG_CLEAR_SKB,
e5497d76 11271 },
109086ce
AN		 11272 {
11273 .cmd = NL80211_CMD_TDLS_MGMT,
11274 .doit = nl80211_tdls_mgmt,
11275 .policy = nl80211_policy,
11276 .flags = GENL_ADMIN_PERM,
11277 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11278 NL80211_FLAG_NEED_RTNL,
11279 },
11280 {
11281 .cmd = NL80211_CMD_TDLS_OPER,
11282 .doit = nl80211_tdls_oper,
11283 .policy = nl80211_policy,
11284 .flags = GENL_ADMIN_PERM,
11285 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11286 NL80211_FLAG_NEED_RTNL,
11287 },
28946da7
JB		 11288 {
11289 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11290 .doit = nl80211_register_unexpected_frame,
11291 .policy = nl80211_policy,
11292 .flags = GENL_ADMIN_PERM,
11293 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11294 NL80211_FLAG_NEED_RTNL,
11295 },
7f6cf311
JB		 11296 {
11297 .cmd = NL80211_CMD_PROBE_CLIENT,
11298 .doit = nl80211_probe_client,
11299 .policy = nl80211_policy,
11300 .flags = GENL_ADMIN_PERM,
2b5f8b0b 11301 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 11302 NL80211_FLAG_NEED_RTNL,
11303 },
5e760230
JB		 11304 {
11305 .cmd = NL80211_CMD_REGISTER_BEACONS,
11306 .doit = nl80211_register_beacons,
11307 .policy = nl80211_policy,
11308 .flags = GENL_ADMIN_PERM,
11309 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11310 NL80211_FLAG_NEED_RTNL,
11311 },
1d9d9213
SW		 11312 {
11313 .cmd = NL80211_CMD_SET_NOACK_MAP,
11314 .doit = nl80211_set_noack_map,
11315 .policy = nl80211_policy,
11316 .flags = GENL_ADMIN_PERM,
11317 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11318 NL80211_FLAG_NEED_RTNL,
11319 },
98104fde
JB		 11320 {
11321 .cmd = NL80211_CMD_START_P2P_DEVICE,
11322 .doit = nl80211_start_p2p_device,
11323 .policy = nl80211_policy,
11324 .flags = GENL_ADMIN_PERM,
11325 .internal_flags = NL80211_FLAG_NEED_WDEV |
11326 NL80211_FLAG_NEED_RTNL,
11327 },
11328 {
11329 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11330 .doit = nl80211_stop_p2p_device,
11331 .policy = nl80211_policy,
11332 .flags = GENL_ADMIN_PERM,
11333 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11334 NL80211_FLAG_NEED_RTNL,
11335 },
f4e583c8
AQ		 11336 {
11337 .cmd = NL80211_CMD_SET_MCAST_RATE,
11338 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 11339 .policy = nl80211_policy,
11340 .flags = GENL_ADMIN_PERM,
11341 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11342 NL80211_FLAG_NEED_RTNL,
11343 },
11344 {
11345 .cmd = NL80211_CMD_SET_MAC_ACL,
11346 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 11347 .policy = nl80211_policy,
11348 .flags = GENL_ADMIN_PERM,
11349 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11350 NL80211_FLAG_NEED_RTNL,
11351 },
04f39047
SW		 11352 {
11353 .cmd = NL80211_CMD_RADAR_DETECT,
11354 .doit = nl80211_start_radar_detection,
11355 .policy = nl80211_policy,
11356 .flags = GENL_ADMIN_PERM,
11357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11358 NL80211_FLAG_NEED_RTNL,
11359 },
3713b4e3
JB		 11360 {
11361 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11362 .doit = nl80211_get_protocol_features,
11363 .policy = nl80211_policy,
11364 },
355199e0
JM		 11365 {
11366 .cmd = NL80211_CMD_UPDATE_FT_IES,
11367 .doit = nl80211_update_ft_ies,
11368 .policy = nl80211_policy,
11369 .flags = GENL_ADMIN_PERM,
11370 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11371 NL80211_FLAG_NEED_RTNL,
11372 },
5de17984
AS		 11373 {
11374 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11375 .doit = nl80211_crit_protocol_start,
11376 .policy = nl80211_policy,
11377 .flags = GENL_ADMIN_PERM,
11378 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11379 NL80211_FLAG_NEED_RTNL,
11380 },
11381 {
11382 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11383 .doit = nl80211_crit_protocol_stop,
11384 .policy = nl80211_policy,
11385 .flags = GENL_ADMIN_PERM,
11386 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11387 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 11388 },
11389 {
11390 .cmd = NL80211_CMD_GET_COALESCE,
11391 .doit = nl80211_get_coalesce,
11392 .policy = nl80211_policy,
11393 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11394 NL80211_FLAG_NEED_RTNL,
11395 },
11396 {
11397 .cmd = NL80211_CMD_SET_COALESCE,
11398 .doit = nl80211_set_coalesce,
11399 .policy = nl80211_policy,
11400 .flags = GENL_ADMIN_PERM,
11401 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11402 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 11403 },
11404 {
11405 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11406 .doit = nl80211_channel_switch,
11407 .policy = nl80211_policy,
11408 .flags = GENL_ADMIN_PERM,
11409 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11410 NL80211_FLAG_NEED_RTNL,
11411 },
ad7e718c
JB		 11412 {
11413 .cmd = NL80211_CMD_VENDOR,
11414 .doit = nl80211_vendor_cmd,
7bdbe400 11415 .dumpit = nl80211_vendor_cmd_dump,
ad7e718c
JB		 11416 .policy = nl80211_policy,
11417 .flags = GENL_ADMIN_PERM,
11418 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11419 NL80211_FLAG_NEED_RTNL,
11420 },
fa9ffc74
KP		 11421 {
11422 .cmd = NL80211_CMD_SET_QOS_MAP,
11423 .doit = nl80211_set_qos_map,
11424 .policy = nl80211_policy,
11425 .flags = GENL_ADMIN_PERM,
11426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11427 NL80211_FLAG_NEED_RTNL,
11428 },
960d01ac
JB		 11429 {
11430 .cmd = NL80211_CMD_ADD_TX_TS,
11431 .doit = nl80211_add_tx_ts,
11432 .policy = nl80211_policy,
11433 .flags = GENL_ADMIN_PERM,
11434 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11435 NL80211_FLAG_NEED_RTNL,
11436 },
11437 {
11438 .cmd = NL80211_CMD_DEL_TX_TS,
11439 .doit = nl80211_del_tx_ts,
11440 .policy = nl80211_policy,
11441 .flags = GENL_ADMIN_PERM,
11442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11443 NL80211_FLAG_NEED_RTNL,
11444 },
1057d35e
AN		 11445 {
11446 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11447 .doit = nl80211_tdls_channel_switch,
11448 .policy = nl80211_policy,
11449 .flags = GENL_ADMIN_PERM,
11450 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11451 NL80211_FLAG_NEED_RTNL,
11452 },
11453 {
11454 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11455 .doit = nl80211_tdls_cancel_channel_switch,
11456 .policy = nl80211_policy,
11457 .flags = GENL_ADMIN_PERM,
11458 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11459 NL80211_FLAG_NEED_RTNL,
11460 },
55682965 11461};
9588bbd5 11462
55682965
JB		 11463/* notification functions */
11464
3bb20556
JB		 11465void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11466 enum nl80211_commands cmd)
55682965
JB		 11467{
11468 struct sk_buff *msg;
86e8cf98 11469 struct nl80211_dump_wiphy_state state = {};
55682965 11470
3bb20556
JB		 11471 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11472 cmd != NL80211_CMD_DEL_WIPHY);
11473
fd2120ca 11474 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11475 if (!msg)
11476 return;
11477
3bb20556 11478 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11479 nlmsg_free(msg);
11480 return;
11481 }
11482
68eb5503 11483 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11484 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11485}
11486
362a415d
JB		 11487static int nl80211_add_scan_req(struct sk_buff *msg,
11488 struct cfg80211_registered_device *rdev)
11489{
11490 struct cfg80211_scan_request *req = rdev->scan_req;
11491 struct nlattr *nest;
11492 int i;
11493
11494 if (WARN_ON(!req))
11495 return 0;
11496
11497 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11498 if (!nest)
11499 goto nla_put_failure;
9360ffd1
DM		 11500 for (i = 0; i < req->n_ssids; i++) {
11501 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11502 goto nla_put_failure;
11503 }
362a415d
JB		 11504 nla_nest_end(msg, nest);
11505
11506 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11507 if (!nest)
11508 goto nla_put_failure;
9360ffd1
DM		 11509 for (i = 0; i < req->n_channels; i++) {
11510 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11511 goto nla_put_failure;
11512 }
362a415d
JB		 11513 nla_nest_end(msg, nest);
11514
9360ffd1
DM		 11515 if (req->ie &&
11516 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11517 goto nla_put_failure;
362a415d 11518
ae917c9f
JB		 11519 if (req->flags &&
11520 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11521 goto nla_put_failure;
ed473771 11522
362a415d
JB		 11523 return 0;
11524 nla_put_failure:
11525 return -ENOBUFS;
11526}
11527
a538e2d5
JB		 11528static int nl80211_send_scan_msg(struct sk_buff *msg,
11529 struct cfg80211_registered_device *rdev,
fd014284 11530 struct wireless_dev *wdev,
15e47304 11531 u32 portid, u32 seq, int flags,
a538e2d5 11532 u32 cmd)
2a519311
JB		 11533{
11534 void *hdr;
11535
15e47304 11536 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11537 if (!hdr)
11538 return -1;
11539
9360ffd1 11540 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11541 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11542 wdev->netdev->ifindex)) ||
11543 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11544 goto nla_put_failure;
2a519311 11545
362a415d
JB		 11546 /* ignore errors and send incomplete event anyway */
11547 nl80211_add_scan_req(msg, rdev);
2a519311 11548
053c095a
JB		 11549 genlmsg_end(msg, hdr);
11550 return 0;
2a519311
JB		 11551
11552 nla_put_failure:
11553 genlmsg_cancel(msg, hdr);
11554 return -EMSGSIZE;
11555}
11556
807f8a8c
LC		 11557static int
11558nl80211_send_sched_scan_msg(struct sk_buff *msg,
11559 struct cfg80211_registered_device *rdev,
11560 struct net_device *netdev,
15e47304 11561 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11562{
11563 void *hdr;
11564
15e47304 11565 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11566 if (!hdr)
11567 return -1;
11568
9360ffd1
DM		 11569 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11570 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11571 goto nla_put_failure;
807f8a8c 11572
053c095a
JB		 11573 genlmsg_end(msg, hdr);
11574 return 0;
807f8a8c
LC		 11575
11576 nla_put_failure:
11577 genlmsg_cancel(msg, hdr);
11578 return -EMSGSIZE;
11579}
11580
a538e2d5 11581void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11582 struct wireless_dev *wdev)
a538e2d5
JB		 11583{
11584 struct sk_buff *msg;
11585
58050fce 11586 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11587 if (!msg)
11588 return;
11589
fd014284 11590 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11591 NL80211_CMD_TRIGGER_SCAN) < 0) {
11592 nlmsg_free(msg);
11593 return;
11594 }
11595
68eb5503 11596 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11597 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11598}
11599
f9d15d16
JB		 11600struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11601 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11602{
11603 struct sk_buff *msg;
11604
fd2120ca 11605 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11606 if (!msg)
f9d15d16 11607 return NULL;
2a519311 11608
fd014284 11609 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11610 aborted ? NL80211_CMD_SCAN_ABORTED :
11611 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11612 nlmsg_free(msg);
f9d15d16 11613 return NULL;
2a519311
JB		 11614 }
11615
f9d15d16 11616 return msg;
2a519311
JB		 11617}
11618
f9d15d16
JB		 11619void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11620 struct sk_buff *msg)
2a519311 11621{
2a519311
JB		 11622 if (!msg)
11623 return;
11624
68eb5503 11625 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11626 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11627}
11628
807f8a8c
LC		 11629void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11630 struct net_device *netdev)
11631{
11632 struct sk_buff *msg;
11633
11634 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11635 if (!msg)
11636 return;
11637
11638 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11639 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11640 nlmsg_free(msg);
11641 return;
11642 }
11643
68eb5503 11644 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11645 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11646}
11647
11648void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11649 struct net_device *netdev, u32 cmd)
11650{
11651 struct sk_buff *msg;
11652
58050fce 11653 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11654 if (!msg)
11655 return;
11656
11657 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11658 nlmsg_free(msg);
11659 return;
11660 }
11661
68eb5503 11662 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11663 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11664}
11665
b0d7aa59
JD		 11666static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11667 struct regulatory_request *request)
73d54c9e 11668{
73d54c9e 11669 /* Userspace can always count this one always being set */
9360ffd1
DM		 11670 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11671 goto nla_put_failure;
11672
11673 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11674 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11675 NL80211_REGDOM_TYPE_WORLD))
11676 goto nla_put_failure;
11677 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11678 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11679 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11680 goto nla_put_failure;
11681 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11682 request->intersect) {
11683 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11684 NL80211_REGDOM_TYPE_INTERSECTION))
11685 goto nla_put_failure;
11686 } else {
11687 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11688 NL80211_REGDOM_TYPE_COUNTRY) ||
11689 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11690 request->alpha2))
11691 goto nla_put_failure;
11692 }
11693
ad30ca2c
AN		 11694 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11695 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11696
11697 if (wiphy &&
11698 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11699 goto nla_put_failure;
1bdd716c
AN		 11700
11701 if (wiphy &&
11702 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11703 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11704 goto nla_put_failure;
ad30ca2c 11705 }
73d54c9e 11706
b0d7aa59
JD		 11707 return true;
11708
11709nla_put_failure:
11710 return false;
11711}
11712
11713/*
11714 * This can happen on global regulatory changes or device specific settings
11715 * based on custom regulatory domains.
11716 */
11717void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11718 struct regulatory_request *request)
11719{
11720 struct sk_buff *msg;
11721 void *hdr;
11722
11723 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11724 if (!msg)
11725 return;
11726
11727 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11728 if (!hdr) {
11729 nlmsg_free(msg);
11730 return;
11731 }
11732
11733 if (nl80211_reg_change_event_fill(msg, request) == false)
11734 goto nla_put_failure;
11735
3b7b72ee 11736 genlmsg_end(msg, hdr);
73d54c9e 11737
bc43b28c 11738 rcu_read_lock();
68eb5503 11739 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11740 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11741 rcu_read_unlock();
73d54c9e
LR		 11742
11743 return;
11744
11745nla_put_failure:
11746 genlmsg_cancel(msg, hdr);
11747 nlmsg_free(msg);
11748}
11749
6039f6d2
JM		 11750static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11751 struct net_device *netdev,
11752 const u8 *buf, size_t len,
b0b6aa2c
EP		 11753 enum nl80211_commands cmd, gfp_t gfp,
11754 int uapsd_queues)
6039f6d2
JM		 11755{
11756 struct sk_buff *msg;
11757 void *hdr;
11758
e6d6e342 11759 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11760 if (!msg)
11761 return;
11762
11763 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11764 if (!hdr) {
11765 nlmsg_free(msg);
11766 return;
11767 }
11768
9360ffd1
DM		 11769 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11770 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11771 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11772 goto nla_put_failure;
6039f6d2 11773
b0b6aa2c
EP		 11774 if (uapsd_queues >= 0) {
11775 struct nlattr *nla_wmm =
11776 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11777 if (!nla_wmm)
11778 goto nla_put_failure;
11779
11780 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11781 uapsd_queues))
11782 goto nla_put_failure;
11783
11784 nla_nest_end(msg, nla_wmm);
11785 }
11786
3b7b72ee 11787 genlmsg_end(msg, hdr);
6039f6d2 11788
68eb5503 11789 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11790 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11791 return;
11792
11793 nla_put_failure:
11794 genlmsg_cancel(msg, hdr);
11795 nlmsg_free(msg);
11796}
11797
11798void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11799 struct net_device *netdev, const u8 *buf,
11800 size_t len, gfp_t gfp)
6039f6d2
JM		 11801{
11802 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11803 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11804}
11805
11806void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11807 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11808 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11809{
e6d6e342 11810 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11811 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11812}
11813
53b46b84 11814void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11815 struct net_device *netdev, const u8 *buf,
11816 size_t len, gfp_t gfp)
6039f6d2
JM		 11817{
11818 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11819 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11820}
11821
53b46b84
JM		 11822void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11823 struct net_device *netdev, const u8 *buf,
e6d6e342 11824 size_t len, gfp_t gfp)
6039f6d2
JM		 11825{
11826 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11827 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11828}
11829
6ff57cf8
JB		 11830void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11831 size_t len)
cf4e594e 11832{
947add36
JB		 11833 struct wireless_dev *wdev = dev->ieee80211_ptr;
11834 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11835 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11836 const struct ieee80211_mgmt *mgmt = (void *)buf;
11837 u32 cmd;
947add36 11838
6ff57cf8
JB		 11839 if (WARN_ON(len < 2))
11840 return;
cf4e594e 11841
6ff57cf8
JB		 11842 if (ieee80211_is_deauth(mgmt->frame_control))
11843 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11844 else
11845 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11846
6ff57cf8 11847 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11848 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11849}
6ff57cf8 11850EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11851
1b06bb40
LR		 11852static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11853 struct net_device *netdev, int cmd,
e6d6e342 11854 const u8 *addr, gfp_t gfp)
1965c853
JM		 11855{
11856 struct sk_buff *msg;
11857 void *hdr;
11858
e6d6e342 11859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11860 if (!msg)
11861 return;
11862
11863 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
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 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11872 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11873 goto nla_put_failure;
1965c853 11874
3b7b72ee 11875 genlmsg_end(msg, hdr);
1965c853 11876
68eb5503 11877 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11878 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11879 return;
11880
11881 nla_put_failure:
11882 genlmsg_cancel(msg, hdr);
11883 nlmsg_free(msg);
11884}
11885
11886void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11887 struct net_device *netdev, const u8 *addr,
11888 gfp_t gfp)
1965c853
JM		 11889{
11890 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11891 addr, gfp);
1965c853
JM		 11892}
11893
11894void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11895 struct net_device *netdev, const u8 *addr,
11896 gfp_t gfp)
1965c853 11897{
e6d6e342
JB		 11898 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11899 addr, gfp);
1965c853
JM		 11900}
11901
b23aa676
SO		 11902void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11903 struct net_device *netdev, const u8 *bssid,
11904 const u8 *req_ie, size_t req_ie_len,
11905 const u8 *resp_ie, size_t resp_ie_len,
11906 u16 status, gfp_t gfp)
11907{
11908 struct sk_buff *msg;
11909 void *hdr;
11910
58050fce 11911 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11912 if (!msg)
11913 return;
11914
11915 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11916 if (!hdr) {
11917 nlmsg_free(msg);
11918 return;
11919 }
11920
9360ffd1
DM		 11921 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11922 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11923 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11924 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11925 (req_ie &&
11926 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11927 (resp_ie &&
11928 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11929 goto nla_put_failure;
b23aa676 11930
3b7b72ee 11931 genlmsg_end(msg, hdr);
b23aa676 11932
68eb5503 11933 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11934 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11935 return;
11936
11937 nla_put_failure:
11938 genlmsg_cancel(msg, hdr);
11939 nlmsg_free(msg);
11940
11941}
11942
11943void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11944 struct net_device *netdev, const u8 *bssid,
11945 const u8 *req_ie, size_t req_ie_len,
11946 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11947{
11948 struct sk_buff *msg;
11949 void *hdr;
11950
58050fce 11951 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11952 if (!msg)
11953 return;
11954
11955 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11956 if (!hdr) {
11957 nlmsg_free(msg);
11958 return;
11959 }
11960
9360ffd1
DM		 11961 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11962 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11963 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11964 (req_ie &&
11965 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11966 (resp_ie &&
11967 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11968 goto nla_put_failure;
b23aa676 11969
3b7b72ee 11970 genlmsg_end(msg, hdr);
b23aa676 11971
68eb5503 11972 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11973 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11974 return;
11975
11976 nla_put_failure:
11977 genlmsg_cancel(msg, hdr);
11978 nlmsg_free(msg);
11979
11980}
11981
11982void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11983 struct net_device *netdev, u16 reason,
667503dd 11984 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11985{
11986 struct sk_buff *msg;
11987 void *hdr;
11988
58050fce 11989 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11990 if (!msg)
11991 return;
11992
11993 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11994 if (!hdr) {
11995 nlmsg_free(msg);
11996 return;
11997 }
11998
9360ffd1
DM		 11999 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12000 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12001 (from_ap && reason &&
12002 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12003 (from_ap &&
12004 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12005 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12006 goto nla_put_failure;
b23aa676 12007
3b7b72ee 12008 genlmsg_end(msg, hdr);
b23aa676 12009
68eb5503 12010 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12011 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 12012 return;
12013
12014 nla_put_failure:
12015 genlmsg_cancel(msg, hdr);
12016 nlmsg_free(msg);
12017
12018}
12019
04a773ad
JB		 12020void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12021 struct net_device *netdev, const u8 *bssid,
12022 gfp_t gfp)
12023{
12024 struct sk_buff *msg;
12025 void *hdr;
12026
fd2120ca 12027 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 12028 if (!msg)
12029 return;
12030
12031 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12032 if (!hdr) {
12033 nlmsg_free(msg);
12034 return;
12035 }
12036
9360ffd1
DM		 12037 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12038 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12039 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12040 goto nla_put_failure;
04a773ad 12041
3b7b72ee 12042 genlmsg_end(msg, hdr);
04a773ad 12043
68eb5503 12044 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12045 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 12046 return;
12047
12048 nla_put_failure:
12049 genlmsg_cancel(msg, hdr);
12050 nlmsg_free(msg);
12051}
12052
947add36
JB		 12053void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12054 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 12055{
947add36 12056 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12057 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 12058 struct sk_buff *msg;
12059 void *hdr;
12060
947add36
JB		 12061 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12062 return;
12063
12064 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12065
c93b5e71
JC		 12066 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12067 if (!msg)
12068 return;
12069
12070 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12071 if (!hdr) {
12072 nlmsg_free(msg);
12073 return;
12074 }
12075
9360ffd1 12076 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 12077 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12078 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 12079 (ie_len && ie &&
12080 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12081 goto nla_put_failure;
c93b5e71 12082
3b7b72ee 12083 genlmsg_end(msg, hdr);
c93b5e71 12084
68eb5503 12085 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12086 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 12087 return;
12088
12089 nla_put_failure:
12090 genlmsg_cancel(msg, hdr);
12091 nlmsg_free(msg);
12092}
947add36 12093EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 12094
a3b8b056
JM		 12095void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12096 struct net_device *netdev, const u8 *addr,
12097 enum nl80211_key_type key_type, int key_id,
e6d6e342 12098 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 12099{
12100 struct sk_buff *msg;
12101 void *hdr;
12102
e6d6e342 12103 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 12104 if (!msg)
12105 return;
12106
12107 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12108 if (!hdr) {
12109 nlmsg_free(msg);
12110 return;
12111 }
12112
9360ffd1
DM		 12113 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12114 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12115 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12116 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12117 (key_id != -1 &&
12118 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12119 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12120 goto nla_put_failure;
a3b8b056 12121
3b7b72ee 12122 genlmsg_end(msg, hdr);
a3b8b056 12123
68eb5503 12124 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12125 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 12126 return;
12127
12128 nla_put_failure:
12129 genlmsg_cancel(msg, hdr);
12130 nlmsg_free(msg);
12131}
12132
6bad8766
LR		 12133void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12134 struct ieee80211_channel *channel_before,
12135 struct ieee80211_channel *channel_after)
12136{
12137 struct sk_buff *msg;
12138 void *hdr;
12139 struct nlattr *nl_freq;
12140
fd2120ca 12141 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 12142 if (!msg)
12143 return;
12144
12145 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12146 if (!hdr) {
12147 nlmsg_free(msg);
12148 return;
12149 }
12150
12151 /*
12152 * Since we are applying the beacon hint to a wiphy we know its
12153 * wiphy_idx is valid
12154 */
9360ffd1
DM		 12155 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12156 goto nla_put_failure;
6bad8766
LR		 12157
12158 /* Before */
12159 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12160 if (!nl_freq)
12161 goto nla_put_failure;
cdc89b97 12162 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 12163 goto nla_put_failure;
12164 nla_nest_end(msg, nl_freq);
12165
12166 /* After */
12167 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12168 if (!nl_freq)
12169 goto nla_put_failure;
cdc89b97 12170 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 12171 goto nla_put_failure;
12172 nla_nest_end(msg, nl_freq);
12173
3b7b72ee 12174 genlmsg_end(msg, hdr);
6bad8766 12175
463d0183 12176 rcu_read_lock();
68eb5503 12177 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 12178 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 12179 rcu_read_unlock();
6bad8766
LR		 12180
12181 return;
12182
12183nla_put_failure:
12184 genlmsg_cancel(msg, hdr);
12185 nlmsg_free(msg);
12186}
12187
9588bbd5
JM		 12188static void nl80211_send_remain_on_chan_event(
12189 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 12190 struct wireless_dev *wdev, u64 cookie,
9588bbd5 12191 struct ieee80211_channel *chan,
9588bbd5
JM		 12192 unsigned int duration, gfp_t gfp)
12193{
12194 struct sk_buff *msg;
12195 void *hdr;
12196
12197 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12198 if (!msg)
12199 return;
12200
12201 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12202 if (!hdr) {
12203 nlmsg_free(msg);
12204 return;
12205 }
12206
9360ffd1 12207 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12208 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12209 wdev->netdev->ifindex)) ||
00f53350 12210 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 12211 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 12212 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12213 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 12214 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
12215 goto nla_put_failure;
9588bbd5 12216
9360ffd1
DM		 12217 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12218 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12219 goto nla_put_failure;
9588bbd5 12220
3b7b72ee 12221 genlmsg_end(msg, hdr);
9588bbd5 12222
68eb5503 12223 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12224 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 12225 return;
12226
12227 nla_put_failure:
12228 genlmsg_cancel(msg, hdr);
12229 nlmsg_free(msg);
12230}
12231
947add36
JB		 12232void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12233 struct ieee80211_channel *chan,
12234 unsigned int duration, gfp_t gfp)
9588bbd5 12235{
947add36 12236 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12237 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12238
12239 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 12240 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 12241 rdev, wdev, cookie, chan,
42d97a59 12242 duration, gfp);
9588bbd5 12243}
947add36 12244EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 12245
947add36
JB		 12246void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12247 struct ieee80211_channel *chan,
12248 gfp_t gfp)
9588bbd5 12249{
947add36 12250 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12251 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12252
12253 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 12254 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 12255 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 12256}
947add36 12257EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 12258
947add36
JB		 12259void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12260 struct station_info *sinfo, gfp_t gfp)
98b62183 12261{
947add36 12262 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12263 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 12264 struct sk_buff *msg;
12265
947add36
JB		 12266 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12267
58050fce 12268 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 12269 if (!msg)
12270 return;
12271
cf5ead82 12272 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 12273 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 12274 nlmsg_free(msg);
12275 return;
12276 }
12277
68eb5503 12278 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12279 NL80211_MCGRP_MLME, gfp);
98b62183 12280}
947add36 12281EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 12282
cf5ead82
JB		 12283void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12284 struct station_info *sinfo, gfp_t gfp)
ec15e68b 12285{
947add36 12286 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12287 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 12288 struct sk_buff *msg;
cf5ead82
JB		 12289 struct station_info empty_sinfo = {};
12290
12291 if (!sinfo)
12292 sinfo = &empty_sinfo;
ec15e68b 12293
947add36
JB		 12294 trace_cfg80211_del_sta(dev, mac_addr);
12295
58050fce 12296 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 12297 if (!msg)
12298 return;
12299
cf5ead82 12300 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 12301 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 12302 nlmsg_free(msg);
12303 return;
12304 }
12305
68eb5503 12306 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12307 NL80211_MCGRP_MLME, gfp);
ec15e68b 12308}
cf5ead82 12309EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 12310
947add36
JB		 12311void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12312 enum nl80211_connect_failed_reason reason,
12313 gfp_t gfp)
ed44a951 12314{
947add36 12315 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 12316 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 12317 struct sk_buff *msg;
12318 void *hdr;
12319
12320 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12321 if (!msg)
12322 return;
12323
12324 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12325 if (!hdr) {
12326 nlmsg_free(msg);
12327 return;
12328 }
12329
12330 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12331 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12332 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12333 goto nla_put_failure;
12334
12335 genlmsg_end(msg, hdr);
12336
68eb5503 12337 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12338 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 12339 return;
12340
12341 nla_put_failure:
12342 genlmsg_cancel(msg, hdr);
12343 nlmsg_free(msg);
12344}
947add36 12345EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 12346
b92ab5d8
JB		 12347static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12348 const u8 *addr, gfp_t gfp)
28946da7
JB		 12349{
12350 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12351 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 12352 struct sk_buff *msg;
12353 void *hdr;
15e47304 12354 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 12355
15e47304 12356 if (!nlportid)
28946da7
JB		 12357 return false;
12358
12359 msg = nlmsg_new(100, gfp);
12360 if (!msg)
12361 return true;
12362
b92ab5d8 12363 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 12364 if (!hdr) {
12365 nlmsg_free(msg);
12366 return true;
12367 }
12368
9360ffd1
DM		 12369 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12370 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12371 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12372 goto nla_put_failure;
28946da7 12373
9c90a9f6 12374 genlmsg_end(msg, hdr);
15e47304 12375 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 12376 return true;
12377
12378 nla_put_failure:
12379 genlmsg_cancel(msg, hdr);
12380 nlmsg_free(msg);
12381 return true;
12382}
12383
947add36
JB		 12384bool cfg80211_rx_spurious_frame(struct net_device *dev,
12385 const u8 *addr, gfp_t gfp)
b92ab5d8 12386{
947add36
JB		 12387 struct wireless_dev *wdev = dev->ieee80211_ptr;
12388 bool ret;
12389
12390 trace_cfg80211_rx_spurious_frame(dev, addr);
12391
12392 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12393 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12394 trace_cfg80211_return_bool(false);
12395 return false;
12396 }
12397 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12398 addr, gfp);
12399 trace_cfg80211_return_bool(ret);
12400 return ret;
b92ab5d8 12401}
947add36 12402EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 12403
947add36
JB		 12404bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12405 const u8 *addr, gfp_t gfp)
b92ab5d8 12406{
947add36
JB		 12407 struct wireless_dev *wdev = dev->ieee80211_ptr;
12408 bool ret;
12409
12410 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12411
12412 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12413 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12414 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12415 trace_cfg80211_return_bool(false);
12416 return false;
12417 }
12418 ret = __nl80211_unexpected_frame(dev,
12419 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12420 addr, gfp);
12421 trace_cfg80211_return_bool(ret);
12422 return ret;
b92ab5d8 12423}
947add36 12424EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 12425
2e161f78 12426int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 12427 struct wireless_dev *wdev, u32 nlportid,
804483e9 12428 int freq, int sig_dbm,
19504cf5 12429 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 12430{
71bbc994 12431 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12432 struct sk_buff *msg;
12433 void *hdr;
026331c4
JM		 12434
12435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12436 if (!msg)
12437 return -ENOMEM;
12438
2e161f78 12439 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12440 if (!hdr) {
12441 nlmsg_free(msg);
12442 return -ENOMEM;
12443 }
12444
9360ffd1 12445 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12446 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12447 netdev->ifindex)) ||
a838490b 12448 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12449 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12450 (sig_dbm &&
12451 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12452 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12453 (flags &&
12454 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12455 goto nla_put_failure;
026331c4 12456
3b7b72ee 12457 genlmsg_end(msg, hdr);
026331c4 12458
15e47304 12459 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12460
12461 nla_put_failure:
12462 genlmsg_cancel(msg, hdr);
12463 nlmsg_free(msg);
12464 return -ENOBUFS;
12465}
12466
947add36
JB		 12467void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12468 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12469{
947add36 12470 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12471 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12472 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12473 struct sk_buff *msg;
12474 void *hdr;
12475
947add36
JB		 12476 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12477
026331c4
JM		 12478 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12479 if (!msg)
12480 return;
12481
2e161f78 12482 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12483 if (!hdr) {
12484 nlmsg_free(msg);
12485 return;
12486 }
12487
9360ffd1 12488 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12489 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12490 netdev->ifindex)) ||
a838490b 12491 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12492 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12493 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12494 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12495 goto nla_put_failure;
026331c4 12496
3b7b72ee 12497 genlmsg_end(msg, hdr);
026331c4 12498
68eb5503 12499 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12500 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12501 return;
12502
12503 nla_put_failure:
12504 genlmsg_cancel(msg, hdr);
12505 nlmsg_free(msg);
12506}
947add36 12507EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12508
5b97f49d
JB		 12509static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12510 const char *mac, gfp_t gfp)
d6dc1a38 12511{
947add36 12512 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12513 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12514 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12515 void **cb;
947add36 12516
d6dc1a38 12517 if (!msg)
5b97f49d 12518 return NULL;
d6dc1a38 12519
5b97f49d
JB		 12520 cb = (void **)msg->cb;
12521
12522 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12523 if (!cb[0]) {
d6dc1a38 12524 nlmsg_free(msg);
5b97f49d 12525 return NULL;
d6dc1a38
JO		 12526 }
12527
9360ffd1 12528 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12529 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12530 goto nla_put_failure;
d6dc1a38 12531
5b97f49d 12532 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12533 goto nla_put_failure;
12534
5b97f49d
JB		 12535 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12536 if (!cb[1])
9360ffd1 12537 goto nla_put_failure;
d6dc1a38 12538
5b97f49d 12539 cb[2] = rdev;
d6dc1a38 12540
5b97f49d
JB		 12541 return msg;
12542 nla_put_failure:
12543 nlmsg_free(msg);
12544 return NULL;
12545}
12546
12547static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12548{
12549 void **cb = (void **)msg->cb;
12550 struct cfg80211_registered_device *rdev = cb[2];
12551
12552 nla_nest_end(msg, cb[1]);
12553 genlmsg_end(msg, cb[0]);
12554
12555 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12556
68eb5503 12557 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12558 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12559}
12560
12561void cfg80211_cqm_rssi_notify(struct net_device *dev,
12562 enum nl80211_cqm_rssi_threshold_event rssi_event,
12563 gfp_t gfp)
12564{
12565 struct sk_buff *msg;
12566
12567 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12568
98f03342
JB		 12569 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12570 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12571 return;
12572
5b97f49d
JB		 12573 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12574 if (!msg)
12575 return;
12576
12577 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12578 rssi_event))
12579 goto nla_put_failure;
12580
12581 cfg80211_send_cqm(msg, gfp);
12582
d6dc1a38
JO		 12583 return;
12584
12585 nla_put_failure:
d6dc1a38
JO		 12586 nlmsg_free(msg);
12587}
947add36 12588EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12589
5b97f49d
JB		 12590void cfg80211_cqm_txe_notify(struct net_device *dev,
12591 const u8 *peer, u32 num_packets,
12592 u32 rate, u32 intvl, gfp_t gfp)
12593{
12594 struct sk_buff *msg;
12595
12596 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12597 if (!msg)
12598 return;
12599
12600 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12601 goto nla_put_failure;
12602
12603 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12604 goto nla_put_failure;
12605
12606 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12607 goto nla_put_failure;
12608
12609 cfg80211_send_cqm(msg, gfp);
12610 return;
12611
12612 nla_put_failure:
12613 nlmsg_free(msg);
12614}
12615EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12616
12617void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12618 const u8 *peer, u32 num_packets, gfp_t gfp)
12619{
12620 struct sk_buff *msg;
12621
12622 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12623
12624 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12625 if (!msg)
12626 return;
12627
12628 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12629 goto nla_put_failure;
12630
12631 cfg80211_send_cqm(msg, gfp);
12632 return;
12633
12634 nla_put_failure:
12635 nlmsg_free(msg);
12636}
12637EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12638
98f03342
JB		 12639void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12640{
12641 struct sk_buff *msg;
12642
12643 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12644 if (!msg)
12645 return;
12646
12647 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12648 goto nla_put_failure;
12649
12650 cfg80211_send_cqm(msg, gfp);
12651 return;
12652
12653 nla_put_failure:
12654 nlmsg_free(msg);
12655}
12656EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12657
947add36
JB		 12658static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12659 struct net_device *netdev, const u8 *bssid,
12660 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12661{
12662 struct sk_buff *msg;
12663 struct nlattr *rekey_attr;
12664 void *hdr;
12665
58050fce 12666 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12667 if (!msg)
12668 return;
12669
12670 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12671 if (!hdr) {
12672 nlmsg_free(msg);
12673 return;
12674 }
12675
9360ffd1
DM		 12676 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12677 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12678 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12679 goto nla_put_failure;
e5497d76
JB		 12680
12681 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12682 if (!rekey_attr)
12683 goto nla_put_failure;
12684
9360ffd1
DM		 12685 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12686 NL80211_REPLAY_CTR_LEN, replay_ctr))
12687 goto nla_put_failure;
e5497d76
JB		 12688
12689 nla_nest_end(msg, rekey_attr);
12690
3b7b72ee 12691 genlmsg_end(msg, hdr);
e5497d76 12692
68eb5503 12693 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12694 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12695 return;
12696
12697 nla_put_failure:
12698 genlmsg_cancel(msg, hdr);
12699 nlmsg_free(msg);
12700}
12701
947add36
JB		 12702void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12703 const u8 *replay_ctr, gfp_t gfp)
12704{
12705 struct wireless_dev *wdev = dev->ieee80211_ptr;
12706 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12707 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12708
12709 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12710 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12711}
12712EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12713
12714static void
12715nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12716 struct net_device *netdev, int index,
12717 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12718{
12719 struct sk_buff *msg;
12720 struct nlattr *attr;
12721 void *hdr;
12722
58050fce 12723 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12724 if (!msg)
12725 return;
12726
12727 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12728 if (!hdr) {
12729 nlmsg_free(msg);
12730 return;
12731 }
12732
9360ffd1
DM		 12733 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12734 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12735 goto nla_put_failure;
c9df56b4
JM		 12736
12737 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12738 if (!attr)
12739 goto nla_put_failure;
12740
9360ffd1
DM		 12741 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12742 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12743 (preauth &&
12744 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12745 goto nla_put_failure;
c9df56b4
JM		 12746
12747 nla_nest_end(msg, attr);
12748
3b7b72ee 12749 genlmsg_end(msg, hdr);
c9df56b4 12750
68eb5503 12751 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12752 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12753 return;
12754
12755 nla_put_failure:
12756 genlmsg_cancel(msg, hdr);
12757 nlmsg_free(msg);
12758}
12759
947add36
JB		 12760void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12761 const u8 *bssid, bool preauth, gfp_t gfp)
12762{
12763 struct wireless_dev *wdev = dev->ieee80211_ptr;
12764 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12765 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12766
12767 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12768 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12769}
12770EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12771
12772static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12773 struct net_device *netdev,
12774 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12775 gfp_t gfp,
12776 enum nl80211_commands notif,
12777 u8 count)
5314526b
TP		 12778{
12779 struct sk_buff *msg;
12780 void *hdr;
12781
58050fce 12782 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12783 if (!msg)
12784 return;
12785
f8d7552e 12786 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12787 if (!hdr) {
12788 nlmsg_free(msg);
12789 return;
12790 }
12791
683b6d3b
JB		 12792 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12793 goto nla_put_failure;
12794
12795 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12796 goto nla_put_failure;
5314526b 12797
f8d7552e
LC		 12798 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12799 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12800 goto nla_put_failure;
12801
5314526b
TP		 12802 genlmsg_end(msg, hdr);
12803
68eb5503 12804 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12805 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12806 return;
12807
12808 nla_put_failure:
12809 genlmsg_cancel(msg, hdr);
12810 nlmsg_free(msg);
12811}
12812
947add36
JB		 12813void cfg80211_ch_switch_notify(struct net_device *dev,
12814 struct cfg80211_chan_def *chandef)
84f10708 12815{
947add36
JB		 12816 struct wireless_dev *wdev = dev->ieee80211_ptr;
12817 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12818 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12819
e487eaeb 12820 ASSERT_WDEV_LOCK(wdev);
947add36 12821
e487eaeb 12822 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12823
9e0e2961 12824 wdev->chandef = *chandef;
96f55f12 12825 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12826 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12827 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12828}
12829EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12830
f8d7552e
LC		 12831void cfg80211_ch_switch_started_notify(struct net_device *dev,
12832 struct cfg80211_chan_def *chandef,
12833 u8 count)
12834{
12835 struct wireless_dev *wdev = dev->ieee80211_ptr;
12836 struct wiphy *wiphy = wdev->wiphy;
12837 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12838
12839 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12840
12841 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12842 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12843}
12844EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12845
04f39047
SW		 12846void
12847nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12848 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12849 enum nl80211_radar_event event,
12850 struct net_device *netdev, gfp_t gfp)
12851{
12852 struct sk_buff *msg;
12853 void *hdr;
12854
12855 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12856 if (!msg)
12857 return;
12858
12859 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12860 if (!hdr) {
12861 nlmsg_free(msg);
12862 return;
12863 }
12864
12865 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12866 goto nla_put_failure;
12867
12868 /* NOP and radar events don't need a netdev parameter */
12869 if (netdev) {
12870 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12871
12872 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12873 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12874 goto nla_put_failure;
12875 }
12876
12877 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12878 goto nla_put_failure;
12879
12880 if (nl80211_send_chandef(msg, chandef))
12881 goto nla_put_failure;
12882
9c90a9f6 12883 genlmsg_end(msg, hdr);
04f39047 12884
68eb5503 12885 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12886 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12887 return;
12888
12889 nla_put_failure:
12890 genlmsg_cancel(msg, hdr);
12891 nlmsg_free(msg);
12892}
12893
7f6cf311
JB		 12894void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12895 u64 cookie, bool acked, gfp_t gfp)
12896{
12897 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12898 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12899 struct sk_buff *msg;
12900 void *hdr;
7f6cf311 12901
4ee3e063
BL		 12902 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12903
58050fce 12904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12905
7f6cf311
JB		 12906 if (!msg)
12907 return;
12908
12909 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12910 if (!hdr) {
12911 nlmsg_free(msg);
12912 return;
12913 }
12914
9360ffd1
DM		 12915 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12916 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12917 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12918 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12919 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12920 goto nla_put_failure;
7f6cf311 12921
9c90a9f6 12922 genlmsg_end(msg, hdr);
7f6cf311 12923
68eb5503 12924 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12925 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12926 return;
12927
12928 nla_put_failure:
12929 genlmsg_cancel(msg, hdr);
12930 nlmsg_free(msg);
12931}
12932EXPORT_SYMBOL(cfg80211_probe_status);
12933
5e760230
JB		 12934void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12935 const u8 *frame, size_t len,
37c73b5f 12936 int freq, int sig_dbm)
5e760230 12937{
f26cbf40 12938 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12939 struct sk_buff *msg;
12940 void *hdr;
37c73b5f 12941 struct cfg80211_beacon_registration *reg;
5e760230 12942
4ee3e063
BL		 12943 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12944
37c73b5f
BG		 12945 spin_lock_bh(&rdev->beacon_registrations_lock);
12946 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12947 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12948 if (!msg) {
12949 spin_unlock_bh(&rdev->beacon_registrations_lock);
12950 return;
12951 }
5e760230 12952
37c73b5f
BG		 12953 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12954 if (!hdr)
12955 goto nla_put_failure;
5e760230 12956
37c73b5f
BG		 12957 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12958 (freq &&
12959 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12960 (sig_dbm &&
12961 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12962 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12963 goto nla_put_failure;
5e760230 12964
37c73b5f 12965 genlmsg_end(msg, hdr);
5e760230 12966
37c73b5f
BG		 12967 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12968 }
12969 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12970 return;
12971
12972 nla_put_failure:
37c73b5f
BG		 12973 spin_unlock_bh(&rdev->beacon_registrations_lock);
12974 if (hdr)
12975 genlmsg_cancel(msg, hdr);
5e760230
JB		 12976 nlmsg_free(msg);
12977}
12978EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12979
cd8f7cb4 12980#ifdef CONFIG_PM
8cd4d456
LC		 12981static int cfg80211_net_detect_results(struct sk_buff *msg,
12982 struct cfg80211_wowlan_wakeup *wakeup)
12983{
12984 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12985 struct nlattr *nl_results, *nl_match, *nl_freqs;
12986 int i, j;
12987
12988 nl_results = nla_nest_start(
12989 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12990 if (!nl_results)
12991 return -EMSGSIZE;
12992
12993 for (i = 0; i < nd->n_matches; i++) {
12994 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12995
12996 nl_match = nla_nest_start(msg, i);
12997 if (!nl_match)
12998 break;
12999
13000 /* The SSID attribute is optional in nl80211, but for
13001 * simplicity reasons it's always present in the
13002 * cfg80211 structure. If a driver can't pass the
13003 * SSID, that needs to be changed. A zero length SSID
13004 * is still a valid SSID (wildcard), so it cannot be
13005 * used for this purpose.
13006 */
13007 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13008 match->ssid.ssid)) {
13009 nla_nest_cancel(msg, nl_match);
13010 goto out;
13011 }
13012
13013 if (match->n_channels) {
13014 nl_freqs = nla_nest_start(
13015 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13016 if (!nl_freqs) {
13017 nla_nest_cancel(msg, nl_match);
13018 goto out;
13019 }
13020
13021 for (j = 0; j < match->n_channels; j++) {
5528fae8 13022 if (nla_put_u32(msg, j, match->channels[j])) {
8cd4d456
LC		 13023 nla_nest_cancel(msg, nl_freqs);
13024 nla_nest_cancel(msg, nl_match);
13025 goto out;
13026 }
13027 }
13028
13029 nla_nest_end(msg, nl_freqs);
13030 }
13031
13032 nla_nest_end(msg, nl_match);
13033 }
13034
13035out:
13036 nla_nest_end(msg, nl_results);
13037 return 0;
13038}
13039
cd8f7cb4
JB		 13040void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13041 struct cfg80211_wowlan_wakeup *wakeup,
13042 gfp_t gfp)
13043{
f26cbf40 13044 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 13045 struct sk_buff *msg;
13046 void *hdr;
9c90a9f6 13047 int size = 200;
cd8f7cb4
JB		 13048
13049 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13050
13051 if (wakeup)
13052 size += wakeup->packet_present_len;
13053
13054 msg = nlmsg_new(size, gfp);
13055 if (!msg)
13056 return;
13057
13058 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13059 if (!hdr)
13060 goto free_msg;
13061
13062 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13063 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13064 goto free_msg;
13065
13066 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13067 wdev->netdev->ifindex))
13068 goto free_msg;
13069
13070 if (wakeup) {
13071 struct nlattr *reasons;
13072
13073 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 13074 if (!reasons)
13075 goto free_msg;
cd8f7cb4
JB		 13076
13077 if (wakeup->disconnect &&
13078 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13079 goto free_msg;
13080 if (wakeup->magic_pkt &&
13081 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13082 goto free_msg;
13083 if (wakeup->gtk_rekey_failure &&
13084 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13085 goto free_msg;
13086 if (wakeup->eap_identity_req &&
13087 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13088 goto free_msg;
13089 if (wakeup->four_way_handshake &&
13090 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13091 goto free_msg;
13092 if (wakeup->rfkill_release &&
13093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13094 goto free_msg;
13095
13096 if (wakeup->pattern_idx >= 0 &&
13097 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13098 wakeup->pattern_idx))
13099 goto free_msg;
13100
ae917c9f
JB		 13101 if (wakeup->tcp_match &&
13102 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13103 goto free_msg;
2a0e047e 13104
ae917c9f
JB		 13105 if (wakeup->tcp_connlost &&
13106 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13107 goto free_msg;
2a0e047e 13108
ae917c9f
JB		 13109 if (wakeup->tcp_nomoretokens &&
13110 nla_put_flag(msg,
13111 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13112 goto free_msg;
2a0e047e 13113
cd8f7cb4
JB		 13114 if (wakeup->packet) {
13115 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13116 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13117
13118 if (!wakeup->packet_80211) {
13119 pkt_attr =
13120 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13121 len_attr =
13122 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13123 }
13124
13125 if (wakeup->packet_len &&
13126 nla_put_u32(msg, len_attr, wakeup->packet_len))
13127 goto free_msg;
13128
13129 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13130 wakeup->packet))
13131 goto free_msg;
13132 }
13133
8cd4d456
LC		 13134 if (wakeup->net_detect &&
13135 cfg80211_net_detect_results(msg, wakeup))
13136 goto free_msg;
13137
cd8f7cb4
JB		 13138 nla_nest_end(msg, reasons);
13139 }
13140
9c90a9f6 13141 genlmsg_end(msg, hdr);
cd8f7cb4 13142
68eb5503 13143 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13144 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 13145 return;
13146
13147 free_msg:
13148 nlmsg_free(msg);
13149}
13150EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13151#endif
13152
3475b094
JM		 13153void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13154 enum nl80211_tdls_operation oper,
13155 u16 reason_code, gfp_t gfp)
13156{
13157 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 13158 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 13159 struct sk_buff *msg;
13160 void *hdr;
3475b094
JM		 13161
13162 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13163 reason_code);
13164
13165 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13166 if (!msg)
13167 return;
13168
13169 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13170 if (!hdr) {
13171 nlmsg_free(msg);
13172 return;
13173 }
13174
13175 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13176 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13177 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13178 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13179 (reason_code > 0 &&
13180 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13181 goto nla_put_failure;
13182
9c90a9f6 13183 genlmsg_end(msg, hdr);
3475b094 13184
68eb5503 13185 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13186 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 13187 return;
13188
13189 nla_put_failure:
13190 genlmsg_cancel(msg, hdr);
13191 nlmsg_free(msg);
13192}
13193EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13194
026331c4
JM		 13195static int nl80211_netlink_notify(struct notifier_block * nb,
13196 unsigned long state,
13197 void *_notify)
13198{
13199 struct netlink_notify *notify = _notify;
13200 struct cfg80211_registered_device *rdev;
13201 struct wireless_dev *wdev;
37c73b5f 13202 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 13203
13204 if (state != NETLINK_URELEASE)
13205 return NOTIFY_DONE;
13206
13207 rcu_read_lock();
13208
5e760230 13209 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 13210 bool schedule_destroy_work = false;
93a1e86c
JR		 13211 bool schedule_scan_stop = false;
13212 struct cfg80211_sched_scan_request *sched_scan_req =
13213 rcu_dereference(rdev->sched_scan_req);
13214
13215 if (sched_scan_req && notify->portid &&
13216 sched_scan_req->owner_nlportid == notify->portid)
13217 schedule_scan_stop = true;
78f22b6a
JB		 13218
13219 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 13220 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 13221
78f22b6a
JB		 13222 if (wdev->owner_nlportid == notify->portid)
13223 schedule_destroy_work = true;
13224 }
13225
37c73b5f
BG		 13226 spin_lock_bh(&rdev->beacon_registrations_lock);
13227 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13228 list) {
13229 if (reg->nlportid == notify->portid) {
13230 list_del(&reg->list);
13231 kfree(reg);
13232 break;
13233 }
13234 }
13235 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 13236
13237 if (schedule_destroy_work) {
13238 struct cfg80211_iface_destroy *destroy;
13239
13240 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13241 if (destroy) {
13242 destroy->nlportid = notify->portid;
13243 spin_lock(&rdev->destroy_list_lock);
13244 list_add(&destroy->list, &rdev->destroy_list);
13245 spin_unlock(&rdev->destroy_list_lock);
13246 schedule_work(&rdev->destroy_work);
13247 }
93a1e86c
JR		 13248 } else if (schedule_scan_stop) {
13249 sched_scan_req->owner_nlportid = 0;
13250
13251 if (rdev->ops->sched_scan_stop &&
13252 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13253 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 13254 }
5e760230 13255 }
026331c4
JM		 13256
13257 rcu_read_unlock();
13258
05050753
I		 13259 /*
13260 * It is possible that the user space process that is controlling the
13261 * indoor setting disappeared, so notify the regulatory core.
13262 */
13263 regulatory_netlink_notify(notify->portid);
6784c7db 13264 return NOTIFY_OK;
026331c4
JM		 13265}
13266
13267static struct notifier_block nl80211_netlink_notifier = {
13268 .notifier_call = nl80211_netlink_notify,
13269};
13270
355199e0
JM		 13271void cfg80211_ft_event(struct net_device *netdev,
13272 struct cfg80211_ft_event_params *ft_event)
13273{
13274 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 13275 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 13276 struct sk_buff *msg;
13277 void *hdr;
355199e0
JM		 13278
13279 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13280
13281 if (!ft_event->target_ap)
13282 return;
13283
13284 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13285 if (!msg)
13286 return;
13287
13288 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 13289 if (!hdr)
13290 goto out;
355199e0 13291
ae917c9f
JB		 13292 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13293 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13294 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13295 goto out;
355199e0 13296
ae917c9f
JB		 13297 if (ft_event->ies &&
13298 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13299 goto out;
13300 if (ft_event->ric_ies &&
13301 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13302 ft_event->ric_ies))
13303 goto out;
355199e0 13304
9c90a9f6 13305 genlmsg_end(msg, hdr);
355199e0 13306
68eb5503 13307 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 13308 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 13309 return;
13310 out:
13311 nlmsg_free(msg);
355199e0
JM		 13312}
13313EXPORT_SYMBOL(cfg80211_ft_event);
13314
5de17984
AS		 13315void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13316{
13317 struct cfg80211_registered_device *rdev;
13318 struct sk_buff *msg;
13319 void *hdr;
13320 u32 nlportid;
13321
f26cbf40 13322 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 13323 if (!rdev->crit_proto_nlportid)
13324 return;
13325
13326 nlportid = rdev->crit_proto_nlportid;
13327 rdev->crit_proto_nlportid = 0;
13328
13329 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13330 if (!msg)
13331 return;
13332
13333 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13334 if (!hdr)
13335 goto nla_put_failure;
13336
13337 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13338 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13339 goto nla_put_failure;
13340
13341 genlmsg_end(msg, hdr);
13342
13343 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13344 return;
13345
13346 nla_put_failure:
13347 if (hdr)
13348 genlmsg_cancel(msg, hdr);
13349 nlmsg_free(msg);
13350
13351}
13352EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13353
348baf0e
JB		 13354void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13355{
13356 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 13357 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 13358 struct sk_buff *msg;
13359 void *hdr;
13360
13361 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13362 if (!msg)
13363 return;
13364
13365 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13366 if (!hdr)
13367 goto out;
13368
13369 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13370 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13371 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13372 goto out;
13373
13374 genlmsg_end(msg, hdr);
13375
13376 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13377 NL80211_MCGRP_MLME, GFP_KERNEL);
13378 return;
13379 out:
13380 nlmsg_free(msg);
13381}
13382
55682965
JB		 13383/* initialisation/exit functions */
13384
13385int nl80211_init(void)
13386{
0d63cbb5 13387 int err;
55682965 13388
2a94fe48
JB		 13389 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13390 nl80211_mcgrps);
55682965
JB		 13391 if (err)
13392 return err;
13393
026331c4
JM		 13394 err = netlink_register_notifier(&nl80211_netlink_notifier);
13395 if (err)
13396 goto err_out;
13397
55682965
JB		 13398 return 0;
13399 err_out:
13400 genl_unregister_family(&nl80211_fam);
13401 return err;
13402}
13403
13404void nl80211_exit(void)
13405{
026331c4 13406 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 13407 genl_unregister_family(&nl80211_fam);
13408}
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