]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - net/wireless/nl80211.c
projects / mirror_ubuntu-bionic-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
cfg80211: refactor nl80211_start_sched_scan so it can be reused
[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
55682965
JB		 6 */
7
8#include <linux/if.h>
9#include <linux/module.h>
10#include <linux/err.h>
5a0e3ad6 11#include <linux/slab.h>
55682965
JB		 12#include <linux/list.h>
13#include <linux/if_ether.h>
14#include <linux/ieee80211.h>
15#include <linux/nl80211.h>
16#include <linux/rtnetlink.h>
17#include <linux/netlink.h>
2a519311 18#include <linux/etherdevice.h>
463d0183 19#include <net/net_namespace.h>
55682965
JB		 20#include <net/genetlink.h>
21#include <net/cfg80211.h>
463d0183 22#include <net/sock.h>
2a0e047e 23#include <net/inet_connection_sock.h>
55682965
JB		 24#include "core.h"
25#include "nl80211.h"
b2e1b302 26#include "reg.h"
e35e4d28 27#include "rdev-ops.h"
55682965 28
5fb628e9
JM		 29static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
30 struct genl_info *info,
31 struct cfg80211_crypto_settings *settings,
32 int cipher_limit);
33
f84f771d 34static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 35 struct genl_info *info);
f84f771d 36static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 37 struct genl_info *info);
38
55682965
JB		 39/* the netlink family */
40static struct genl_family nl80211_fam = {
fb4e1568
MH		 41 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
42 .name = NL80211_GENL_NAME, /* have users key off the name instead */
43 .hdrsize = 0, /* no private header */
44 .version = 1, /* no particular meaning now */
55682965 45 .maxattr = NL80211_ATTR_MAX,
463d0183 46 .netnsok = true,
4c476991
JB		 47 .pre_doit = nl80211_pre_doit,
48 .post_doit = nl80211_post_doit,
55682965
JB		 49};
50
2a94fe48
JB		 51/* multicast groups */
52enum nl80211_multicast_groups {
53 NL80211_MCGRP_CONFIG,
54 NL80211_MCGRP_SCAN,
55 NL80211_MCGRP_REGULATORY,
56 NL80211_MCGRP_MLME,
567ffc35 57 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 58 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
59};
60
61static const struct genl_multicast_group nl80211_mcgrps[] = {
62 [NL80211_MCGRP_CONFIG] = { .name = "config", },
63 [NL80211_MCGRP_SCAN] = { .name = "scan", },
64 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
65 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 66 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 67#ifdef CONFIG_NL80211_TESTMODE
68 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
69#endif
70};
71
89a54e48
JB		 72/* returns ERR_PTR values */
73static struct wireless_dev *
74__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 75{
89a54e48
JB		 76 struct cfg80211_registered_device *rdev;
77 struct wireless_dev *result = NULL;
78 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
79 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
80 u64 wdev_id;
81 int wiphy_idx = -1;
82 int ifidx = -1;
55682965 83
5fe231e8 84 ASSERT_RTNL();
55682965 85
89a54e48
JB		 86 if (!have_ifidx && !have_wdev_id)
87 return ERR_PTR(-EINVAL);
55682965 88
89a54e48
JB		 89 if (have_ifidx)
90 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
91 if (have_wdev_id) {
92 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
93 wiphy_idx = wdev_id >> 32;
55682965
JB		 94 }
95
89a54e48
JB		 96 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
97 struct wireless_dev *wdev;
98
99 if (wiphy_net(&rdev->wiphy) != netns)
100 continue;
101
102 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
103 continue;
104
89a54e48
JB		 105 list_for_each_entry(wdev, &rdev->wdev_list, list) {
106 if (have_ifidx && wdev->netdev &&
107 wdev->netdev->ifindex == ifidx) {
108 result = wdev;
109 break;
110 }
111 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
112 result = wdev;
113 break;
114 }
115 }
89a54e48
JB		 116
117 if (result)
118 break;
119 }
120
121 if (result)
122 return result;
123 return ERR_PTR(-ENODEV);
55682965
JB		 124}
125
a9455408 126static struct cfg80211_registered_device *
878d9ec7 127__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 128{
7fee4778
JB		 129 struct cfg80211_registered_device *rdev = NULL, *tmp;
130 struct net_device *netdev;
a9455408 131
5fe231e8 132 ASSERT_RTNL();
a9455408 133
878d9ec7 134 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 135 !attrs[NL80211_ATTR_IFINDEX] &&
136 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 137 return ERR_PTR(-EINVAL);
138
878d9ec7 139 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 140 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 141 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 142
89a54e48
JB		 143 if (attrs[NL80211_ATTR_WDEV]) {
144 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
145 struct wireless_dev *wdev;
146 bool found = false;
147
148 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
149 if (tmp) {
150 /* make sure wdev exists */
89a54e48
JB		 151 list_for_each_entry(wdev, &tmp->wdev_list, list) {
152 if (wdev->identifier != (u32)wdev_id)
153 continue;
154 found = true;
155 break;
156 }
89a54e48
JB		 157
158 if (!found)
159 tmp = NULL;
160
161 if (rdev && tmp != rdev)
162 return ERR_PTR(-EINVAL);
163 rdev = tmp;
164 }
165 }
166
878d9ec7
JB		 167 if (attrs[NL80211_ATTR_IFINDEX]) {
168 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 169 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 170 if (netdev) {
171 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 172 tmp = wiphy_to_rdev(
173 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 174 else
175 tmp = NULL;
176
7fee4778
JB		 177 /* not wireless device -- return error */
178 if (!tmp)
179 return ERR_PTR(-EINVAL);
180
181 /* mismatch -- return error */
182 if (rdev && tmp != rdev)
183 return ERR_PTR(-EINVAL);
184
185 rdev = tmp;
a9455408 186 }
a9455408 187 }
a9455408 188
4f7eff10
JB		 189 if (!rdev)
190 return ERR_PTR(-ENODEV);
a9455408 191
4f7eff10
JB		 192 if (netns != wiphy_net(&rdev->wiphy))
193 return ERR_PTR(-ENODEV);
194
195 return rdev;
a9455408
JB		 196}
197
198/*
199 * This function returns a pointer to the driver
200 * that the genl_info item that is passed refers to.
a9455408
JB		 201 *
202 * The result of this can be a PTR_ERR and hence must
203 * be checked with IS_ERR() for errors.
204 */
205static struct cfg80211_registered_device *
4f7eff10 206cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 207{
5fe231e8 208 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 209}
210
55682965 211/* policy for the attributes */
b54452b0 212static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 213 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 215 .len = 20-1 },
31888487 216 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 217
72bdcf34 218 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 219 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 220 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
223
b9a5f8ca
JM		 224 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 228 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 229 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 230
231 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
232 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 234
e007b857
EP		 235 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
236 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 237
b9454e83 238 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 239 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
240 .len = WLAN_MAX_KEY_LEN },
241 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
242 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
243 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 244 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 245 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 246
247 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
248 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
249 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 253 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
255 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
257 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 258 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 259 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 260 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 261 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 262 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 263 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 264
b2e1b302
LR		 265 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
266 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
267
9f1ba906
JM		 268 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 271 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
272 .len = NL80211_MAX_SUPP_RATES },
50b12f59 273 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 274
24bdd9f4 275 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 276 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 277
6c739419 278 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 279
280 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
281 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 283 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 285
286 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
287 .len = IEEE80211_MAX_SSID_LEN },
288 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
289 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 290 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 291 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 292 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 293 [NL80211_ATTR_STA_FLAGS2] = {
294 .len = sizeof(struct nl80211_sta_flag_update),
295 },
3f77316c 296 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 297 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 299 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
301 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 302 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 303 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 304 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
305 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 306 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
307 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 308 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 309 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 312 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 313 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 314 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 315 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 316 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
317 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 318 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 319 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 321 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 322 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 323 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 324 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 325 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 326 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 327 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 328 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 329 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 330 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 334 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 335 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 336 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 337 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
341 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 342 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 343 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 344 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
345 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 346 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 347 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
348 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
349 .len = NL80211_HT_CAPABILITY_LEN
350 },
1d9d9213 351 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 352 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 353 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 354 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 355 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 356 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 357 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 358 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 359 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
360 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 361 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
362 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 363 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
364 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 365 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 366 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
367 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
368 .len = NL80211_VHT_CAPABILITY_LEN,
369 },
355199e0
JM		 370 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
371 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
372 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 373 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 374 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
375 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
376 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 377 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
378 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 379 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 381 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 382 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 383 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
384 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 386 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
387 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 388 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 390 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 391 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 392 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 393 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 394 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
395 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
396 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 397 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
55682965
JB		 398};
399
e31b8213 400/* policy for the key attributes */
b54452b0 401static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 402 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 403 [NL80211_KEY_IDX] = { .type = NLA_U8 },
404 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 405 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 406 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
407 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 408 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 409 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
410};
411
412/* policy for the key default flags */
413static const struct nla_policy
414nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
415 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
416 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 417};
418
ff1b6e69
JB		 419/* policy for WoWLAN attributes */
420static const struct nla_policy
421nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
422 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
423 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
424 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
425 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 426 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
427 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 430 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
431};
432
433static const struct nla_policy
434nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
435 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
436 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
437 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
438 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
439 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
440 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
441 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
442 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
443 },
444 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
445 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
446 },
447 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
448 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
449 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 450};
451
be29b99a
AK		 452/* policy for coalesce rule attributes */
453static const struct nla_policy
454nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
455 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
456 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
457 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
458};
459
e5497d76
JB		 460/* policy for GTK rekey offload attributes */
461static const struct nla_policy
462nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
463 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
464 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
465 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
466};
467
a1f1c21c
LC		 468static const struct nla_policy
469nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 470 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 471 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 472 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 473};
474
97990a06
JB		 475static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
476 struct netlink_callback *cb,
477 struct cfg80211_registered_device **rdev,
478 struct wireless_dev **wdev)
a043897a 479{
97990a06 480 int err;
a043897a 481
97990a06 482 rtnl_lock();
a043897a 483
97990a06
JB		 484 if (!cb->args[0]) {
485 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
486 nl80211_fam.attrbuf, nl80211_fam.maxattr,
487 nl80211_policy);
488 if (err)
489 goto out_unlock;
67748893 490
97990a06
JB		 491 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
492 nl80211_fam.attrbuf);
493 if (IS_ERR(*wdev)) {
494 err = PTR_ERR(*wdev);
495 goto out_unlock;
496 }
f26cbf40 497 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 498 /* 0 is the first index - add 1 to parse only once */
499 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 500 cb->args[1] = (*wdev)->identifier;
501 } else {
c319d50b
JB		 502 /* subtract the 1 again here */
503 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 504 struct wireless_dev *tmp;
67748893 505
97990a06
JB		 506 if (!wiphy) {
507 err = -ENODEV;
508 goto out_unlock;
509 }
f26cbf40 510 *rdev = wiphy_to_rdev(wiphy);
97990a06 511 *wdev = NULL;
67748893 512
97990a06
JB		 513 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
514 if (tmp->identifier == cb->args[1]) {
515 *wdev = tmp;
516 break;
517 }
518 }
67748893 519
97990a06
JB		 520 if (!*wdev) {
521 err = -ENODEV;
522 goto out_unlock;
523 }
67748893
JB		 524 }
525
67748893 526 return 0;
97990a06 527 out_unlock:
67748893
JB		 528 rtnl_unlock();
529 return err;
530}
531
97990a06 532static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 533{
67748893
JB		 534 rtnl_unlock();
535}
536
f4a11bb0
JB		 537/* IE validation */
538static bool is_valid_ie_attr(const struct nlattr *attr)
539{
540 const u8 *pos;
541 int len;
542
543 if (!attr)
544 return true;
545
546 pos = nla_data(attr);
547 len = nla_len(attr);
548
549 while (len) {
550 u8 elemlen;
551
552 if (len < 2)
553 return false;
554 len -= 2;
555
556 elemlen = pos[1];
557 if (elemlen > len)
558 return false;
559
560 len -= elemlen;
561 pos += 2 + elemlen;
562 }
563
564 return true;
565}
566
55682965 567/* message building helper */
15e47304 568static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 569 int flags, u8 cmd)
570{
571 /* since there is no private header just add the generic one */
15e47304 572 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 573}
574
5dab3b8a 575static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 576 struct ieee80211_channel *chan,
577 bool large)
5dab3b8a 578{
ea077c1c
RL		 579 /* Some channels must be completely excluded from the
580 * list to protect old user-space tools from breaking
581 */
582 if (!large && chan->flags &
583 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
584 return 0;
585
9360ffd1
DM		 586 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
587 chan->center_freq))
588 goto nla_put_failure;
5dab3b8a 589
9360ffd1
DM		 590 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
591 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
592 goto nla_put_failure;
8fe02e16
LR		 593 if (chan->flags & IEEE80211_CHAN_NO_IR) {
594 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
595 goto nla_put_failure;
596 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
597 goto nla_put_failure;
598 }
cdc89b97
JB		 599 if (chan->flags & IEEE80211_CHAN_RADAR) {
600 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
601 goto nla_put_failure;
602 if (large) {
603 u32 time;
604
605 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
606
607 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
608 chan->dfs_state))
609 goto nla_put_failure;
610 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
611 time))
612 goto nla_put_failure;
089027e5
JD		 613 if (nla_put_u32(msg,
614 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
615 chan->dfs_cac_ms))
616 goto nla_put_failure;
cdc89b97
JB		 617 }
618 }
5dab3b8a 619
fe1abafd
JB		 620 if (large) {
621 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
622 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
623 goto nla_put_failure;
624 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
625 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
626 goto nla_put_failure;
627 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
629 goto nla_put_failure;
630 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
632 goto nla_put_failure;
570dbde1
DS		 633 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
635 goto nla_put_failure;
636 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
637 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
638 goto nla_put_failure;
ea077c1c
RL		 639 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
640 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
641 goto nla_put_failure;
642 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
643 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
644 goto nla_put_failure;
fe1abafd
JB		 645 }
646
9360ffd1
DM		 647 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
648 DBM_TO_MBM(chan->max_power)))
649 goto nla_put_failure;
5dab3b8a
LR		 650
651 return 0;
652
653 nla_put_failure:
654 return -ENOBUFS;
655}
656
55682965
JB		 657/* netlink command implementations */
658
b9454e83
JB		 659struct key_parse {
660 struct key_params p;
661 int idx;
e31b8213 662 int type;
b9454e83 663 bool def, defmgmt;
dbd2fd65 664 bool def_uni, def_multi;
b9454e83
JB		 665};
666
667static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
668{
669 struct nlattr *tb[NL80211_KEY_MAX + 1];
670 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
671 nl80211_key_policy);
672 if (err)
673 return err;
674
675 k->def = !!tb[NL80211_KEY_DEFAULT];
676 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
677
dbd2fd65
JB		 678 if (k->def) {
679 k->def_uni = true;
680 k->def_multi = true;
681 }
682 if (k->defmgmt)
683 k->def_multi = true;
684
b9454e83
JB		 685 if (tb[NL80211_KEY_IDX])
686 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
687
688 if (tb[NL80211_KEY_DATA]) {
689 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
690 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
691 }
692
693 if (tb[NL80211_KEY_SEQ]) {
694 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
695 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
696 }
697
698 if (tb[NL80211_KEY_CIPHER])
699 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
700
e31b8213
JB		 701 if (tb[NL80211_KEY_TYPE]) {
702 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
703 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
704 return -EINVAL;
705 }
706
dbd2fd65
JB		 707 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
708 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 709 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
710 tb[NL80211_KEY_DEFAULT_TYPES],
711 nl80211_key_default_policy);
dbd2fd65
JB		 712 if (err)
713 return err;
714
715 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
716 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
717 }
718
b9454e83
JB		 719 return 0;
720}
721
722static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
723{
724 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
725 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
726 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
727 }
728
729 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
730 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
731 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
732 }
733
734 if (info->attrs[NL80211_ATTR_KEY_IDX])
735 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
736
737 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
738 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
739
740 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
741 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
742
dbd2fd65
JB		 743 if (k->def) {
744 k->def_uni = true;
745 k->def_multi = true;
746 }
747 if (k->defmgmt)
748 k->def_multi = true;
749
e31b8213
JB		 750 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
751 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
752 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
753 return -EINVAL;
754 }
755
dbd2fd65
JB		 756 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
757 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
758 int err = nla_parse_nested(
759 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
760 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
761 nl80211_key_default_policy);
762 if (err)
763 return err;
764
765 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
766 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
767 }
768
b9454e83
JB		 769 return 0;
770}
771
772static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
773{
774 int err;
775
776 memset(k, 0, sizeof(*k));
777 k->idx = -1;
e31b8213 778 k->type = -1;
b9454e83
JB		 779
780 if (info->attrs[NL80211_ATTR_KEY])
781 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
782 else
783 err = nl80211_parse_key_old(info, k);
784
785 if (err)
786 return err;
787
788 if (k->def && k->defmgmt)
789 return -EINVAL;
790
dbd2fd65
JB		 791 if (k->defmgmt) {
792 if (k->def_uni || !k->def_multi)
793 return -EINVAL;
794 }
795
b9454e83
JB		 796 if (k->idx != -1) {
797 if (k->defmgmt) {
798 if (k->idx < 4 || k->idx > 5)
799 return -EINVAL;
800 } else if (k->def) {
801 if (k->idx < 0 || k->idx > 3)
802 return -EINVAL;
803 } else {
804 if (k->idx < 0 || k->idx > 5)
805 return -EINVAL;
806 }
807 }
808
809 return 0;
810}
811
fffd0934
JB		 812static struct cfg80211_cached_keys *
813nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 814 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 815{
816 struct key_parse parse;
817 struct nlattr *key;
818 struct cfg80211_cached_keys *result;
819 int rem, err, def = 0;
820
821 result = kzalloc(sizeof(*result), GFP_KERNEL);
822 if (!result)
823 return ERR_PTR(-ENOMEM);
824
825 result->def = -1;
826 result->defmgmt = -1;
827
828 nla_for_each_nested(key, keys, rem) {
829 memset(&parse, 0, sizeof(parse));
830 parse.idx = -1;
831
832 err = nl80211_parse_key_new(key, &parse);
833 if (err)
834 goto error;
835 err = -EINVAL;
836 if (!parse.p.key)
837 goto error;
838 if (parse.idx < 0 || parse.idx > 4)
839 goto error;
840 if (parse.def) {
841 if (def)
842 goto error;
843 def = 1;
844 result->def = parse.idx;
dbd2fd65
JB		 845 if (!parse.def_uni || !parse.def_multi)
846 goto error;
fffd0934
JB		 847 } else if (parse.defmgmt)
848 goto error;
849 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 850 parse.idx, false, NULL);
fffd0934
JB		 851 if (err)
852 goto error;
853 result->params[parse.idx].cipher = parse.p.cipher;
854 result->params[parse.idx].key_len = parse.p.key_len;
855 result->params[parse.idx].key = result->data[parse.idx];
856 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 857
858 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
859 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
860 if (no_ht)
861 *no_ht = true;
862 }
fffd0934
JB		 863 }
864
865 return result;
866 error:
867 kfree(result);
868 return ERR_PTR(err);
869}
870
871static int nl80211_key_allowed(struct wireless_dev *wdev)
872{
873 ASSERT_WDEV_LOCK(wdev);
874
fffd0934
JB		 875 switch (wdev->iftype) {
876 case NL80211_IFTYPE_AP:
877 case NL80211_IFTYPE_AP_VLAN:
074ac8df 878 case NL80211_IFTYPE_P2P_GO:
ff973af7 879 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 880 break;
881 case NL80211_IFTYPE_ADHOC:
fffd0934 882 case NL80211_IFTYPE_STATION:
074ac8df 883 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 884 if (!wdev->current_bss)
fffd0934
JB		 885 return -ENOLINK;
886 break;
de4fcbad 887 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 888 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 889 case NL80211_IFTYPE_MONITOR:
890 case NL80211_IFTYPE_P2P_DEVICE:
891 case NL80211_IFTYPE_WDS:
892 case NUM_NL80211_IFTYPES:
fffd0934
JB		 893 return -EINVAL;
894 }
895
896 return 0;
897}
898
664834de
JM		 899static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
900 struct nlattr *tb)
901{
902 struct ieee80211_channel *chan;
903
904 if (tb == NULL)
905 return NULL;
906 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
907 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
908 return NULL;
909 return chan;
910}
911
7527a782
JB		 912static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
913{
914 struct nlattr *nl_modes = nla_nest_start(msg, attr);
915 int i;
916
917 if (!nl_modes)
918 goto nla_put_failure;
919
920 i = 0;
921 while (ifmodes) {
9360ffd1
DM		 922 if ((ifmodes & 1) && nla_put_flag(msg, i))
923 goto nla_put_failure;
7527a782
JB		 924 ifmodes >>= 1;
925 i++;
926 }
927
928 nla_nest_end(msg, nl_modes);
929 return 0;
930
931nla_put_failure:
932 return -ENOBUFS;
933}
934
935static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 936 struct sk_buff *msg,
937 bool large)
7527a782
JB		 938{
939 struct nlattr *nl_combis;
940 int i, j;
941
942 nl_combis = nla_nest_start(msg,
943 NL80211_ATTR_INTERFACE_COMBINATIONS);
944 if (!nl_combis)
945 goto nla_put_failure;
946
947 for (i = 0; i < wiphy->n_iface_combinations; i++) {
948 const struct ieee80211_iface_combination *c;
949 struct nlattr *nl_combi, *nl_limits;
950
951 c = &wiphy->iface_combinations[i];
952
953 nl_combi = nla_nest_start(msg, i + 1);
954 if (!nl_combi)
955 goto nla_put_failure;
956
957 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
958 if (!nl_limits)
959 goto nla_put_failure;
960
961 for (j = 0; j < c->n_limits; j++) {
962 struct nlattr *nl_limit;
963
964 nl_limit = nla_nest_start(msg, j + 1);
965 if (!nl_limit)
966 goto nla_put_failure;
9360ffd1
DM		 967 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
968 c->limits[j].max))
969 goto nla_put_failure;
7527a782
JB		 970 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
971 c->limits[j].types))
972 goto nla_put_failure;
973 nla_nest_end(msg, nl_limit);
974 }
975
976 nla_nest_end(msg, nl_limits);
977
9360ffd1
DM		 978 if (c->beacon_int_infra_match &&
979 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
980 goto nla_put_failure;
981 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
982 c->num_different_channels) ||
983 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
984 c->max_interfaces))
985 goto nla_put_failure;
cdc89b97 986 if (large &&
8c48b50a
FF		 987 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
988 c->radar_detect_widths) ||
989 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
990 c->radar_detect_regions)))
cdc89b97 991 goto nla_put_failure;
7527a782
JB		 992
993 nla_nest_end(msg, nl_combi);
994 }
995
996 nla_nest_end(msg, nl_combis);
997
998 return 0;
999nla_put_failure:
1000 return -ENOBUFS;
1001}
1002
3713b4e3 1003#ifdef CONFIG_PM
b56cf720
JB		 1004static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1005 struct sk_buff *msg)
1006{
964dc9e2 1007 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1008 struct nlattr *nl_tcp;
1009
1010 if (!tcp)
1011 return 0;
1012
1013 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1014 if (!nl_tcp)
1015 return -ENOBUFS;
1016
1017 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1018 tcp->data_payload_max))
1019 return -ENOBUFS;
1020
1021 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1022 tcp->data_payload_max))
1023 return -ENOBUFS;
1024
1025 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1026 return -ENOBUFS;
1027
1028 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1029 sizeof(*tcp->tok), tcp->tok))
1030 return -ENOBUFS;
1031
1032 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1033 tcp->data_interval_max))
1034 return -ENOBUFS;
1035
1036 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1037 tcp->wake_payload_max))
1038 return -ENOBUFS;
1039
1040 nla_nest_end(msg, nl_tcp);
1041 return 0;
1042}
1043
3713b4e3 1044static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1045 struct cfg80211_registered_device *rdev,
b56cf720 1046 bool large)
55682965 1047{
3713b4e3 1048 struct nlattr *nl_wowlan;
55682965 1049
1b8ec87a 1050 if (!rdev->wiphy.wowlan)
3713b4e3 1051 return 0;
55682965 1052
3713b4e3
JB		 1053 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1054 if (!nl_wowlan)
1055 return -ENOBUFS;
9360ffd1 1056
1b8ec87a 1057 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1058 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1059 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1060 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1061 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1062 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1063 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1064 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1065 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1066 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1067 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1068 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1069 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1070 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1071 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1072 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1073 return -ENOBUFS;
9360ffd1 1074
1b8ec87a 1075 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1076 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1077 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1078 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1079 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1080 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1081 };
9360ffd1 1082
3713b4e3
JB		 1083 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1084 sizeof(pat), &pat))
1085 return -ENOBUFS;
1086 }
9360ffd1 1087
1b8ec87a 1088 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1089 return -ENOBUFS;
1090
3713b4e3 1091 nla_nest_end(msg, nl_wowlan);
9360ffd1 1092
3713b4e3
JB		 1093 return 0;
1094}
1095#endif
9360ffd1 1096
be29b99a 1097static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1098 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1099{
1100 struct nl80211_coalesce_rule_support rule;
1101
1b8ec87a 1102 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1103 return 0;
1104
1b8ec87a
ZG		 1105 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1106 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1107 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1108 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1109 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1110 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1111
1112 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1113 return -ENOBUFS;
1114
1115 return 0;
1116}
1117
3713b4e3
JB		 1118static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1119 struct ieee80211_supported_band *sband)
1120{
1121 struct nlattr *nl_rates, *nl_rate;
1122 struct ieee80211_rate *rate;
1123 int i;
87bbbe22 1124
3713b4e3
JB		 1125 /* add HT info */
1126 if (sband->ht_cap.ht_supported &&
1127 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1128 sizeof(sband->ht_cap.mcs),
1129 &sband->ht_cap.mcs) ||
1130 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1131 sband->ht_cap.cap) ||
1132 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1133 sband->ht_cap.ampdu_factor) ||
1134 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1135 sband->ht_cap.ampdu_density)))
1136 return -ENOBUFS;
afe0cbf8 1137
3713b4e3
JB		 1138 /* add VHT info */
1139 if (sband->vht_cap.vht_supported &&
1140 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1141 sizeof(sband->vht_cap.vht_mcs),
1142 &sband->vht_cap.vht_mcs) ||
1143 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1144 sband->vht_cap.cap)))
1145 return -ENOBUFS;
f59ac048 1146
3713b4e3
JB		 1147 /* add bitrates */
1148 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1149 if (!nl_rates)
1150 return -ENOBUFS;
ee688b00 1151
3713b4e3
JB		 1152 for (i = 0; i < sband->n_bitrates; i++) {
1153 nl_rate = nla_nest_start(msg, i);
1154 if (!nl_rate)
1155 return -ENOBUFS;
ee688b00 1156
3713b4e3
JB		 1157 rate = &sband->bitrates[i];
1158 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1159 rate->bitrate))
1160 return -ENOBUFS;
1161 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1162 nla_put_flag(msg,
1163 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1164 return -ENOBUFS;
ee688b00 1165
3713b4e3
JB		 1166 nla_nest_end(msg, nl_rate);
1167 }
d51626df 1168
3713b4e3 1169 nla_nest_end(msg, nl_rates);
bf0c111e 1170
3713b4e3
JB		 1171 return 0;
1172}
ee688b00 1173
3713b4e3
JB		 1174static int
1175nl80211_send_mgmt_stypes(struct sk_buff *msg,
1176 const struct ieee80211_txrx_stypes *mgmt_stypes)
1177{
1178 u16 stypes;
1179 struct nlattr *nl_ftypes, *nl_ifs;
1180 enum nl80211_iftype ift;
1181 int i;
ee688b00 1182
3713b4e3
JB		 1183 if (!mgmt_stypes)
1184 return 0;
5dab3b8a 1185
3713b4e3
JB		 1186 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1187 if (!nl_ifs)
1188 return -ENOBUFS;
e2f367f2 1189
3713b4e3
JB		 1190 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1191 nl_ftypes = nla_nest_start(msg, ift);
1192 if (!nl_ftypes)
1193 return -ENOBUFS;
1194 i = 0;
1195 stypes = mgmt_stypes[ift].tx;
1196 while (stypes) {
1197 if ((stypes & 1) &&
1198 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1199 (i << 4) | IEEE80211_FTYPE_MGMT))
1200 return -ENOBUFS;
1201 stypes >>= 1;
1202 i++;
ee688b00 1203 }
3713b4e3
JB		 1204 nla_nest_end(msg, nl_ftypes);
1205 }
ee688b00 1206
3713b4e3 1207 nla_nest_end(msg, nl_ifs);
ee688b00 1208
3713b4e3
JB		 1209 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1210 if (!nl_ifs)
1211 return -ENOBUFS;
ee688b00 1212
3713b4e3
JB		 1213 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1214 nl_ftypes = nla_nest_start(msg, ift);
1215 if (!nl_ftypes)
1216 return -ENOBUFS;
1217 i = 0;
1218 stypes = mgmt_stypes[ift].rx;
1219 while (stypes) {
1220 if ((stypes & 1) &&
1221 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1222 (i << 4) | IEEE80211_FTYPE_MGMT))
1223 return -ENOBUFS;
1224 stypes >>= 1;
1225 i++;
1226 }
1227 nla_nest_end(msg, nl_ftypes);
1228 }
1229 nla_nest_end(msg, nl_ifs);
ee688b00 1230
3713b4e3
JB		 1231 return 0;
1232}
ee688b00 1233
86e8cf98
JB		 1234struct nl80211_dump_wiphy_state {
1235 s64 filter_wiphy;
1236 long start;
1237 long split_start, band_start, chan_start;
1238 bool split;
1239};
1240
1b8ec87a 1241static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1242 enum nl80211_commands cmd,
3713b4e3 1243 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1244 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1245{
1246 void *hdr;
1247 struct nlattr *nl_bands, *nl_band;
1248 struct nlattr *nl_freqs, *nl_freq;
1249 struct nlattr *nl_cmds;
1250 enum ieee80211_band band;
1251 struct ieee80211_channel *chan;
1252 int i;
1253 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1254 rdev->wiphy.mgmt_stypes;
fe1abafd 1255 u32 features;
ee688b00 1256
3bb20556 1257 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1258 if (!hdr)
1259 return -ENOBUFS;
ee688b00 1260
86e8cf98
JB		 1261 if (WARN_ON(!state))
1262 return -EINVAL;
ee688b00 1263
1b8ec87a 1264 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1265 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1266 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1267 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1268 cfg80211_rdev_list_generation))
8fdc621d
JB		 1269 goto nla_put_failure;
1270
3bb20556
JB		 1271 if (cmd != NL80211_CMD_NEW_WIPHY)
1272 goto finish;
1273
86e8cf98 1274 switch (state->split_start) {
3713b4e3
JB		 1275 case 0:
1276 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1277 rdev->wiphy.retry_short) ||
3713b4e3 1278 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1279 rdev->wiphy.retry_long) ||
3713b4e3 1280 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1281 rdev->wiphy.frag_threshold) ||
3713b4e3 1282 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1283 rdev->wiphy.rts_threshold) ||
3713b4e3 1284 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1285 rdev->wiphy.coverage_class) ||
3713b4e3 1286 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1287 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1288 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1289 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1290 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1291 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1292 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1293 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1294 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1295 rdev->wiphy.max_match_sets))
9360ffd1 1296 goto nla_put_failure;
3713b4e3 1297
1b8ec87a 1298 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1299 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1300 goto nla_put_failure;
1b8ec87a 1301 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1302 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1303 goto nla_put_failure;
1b8ec87a 1304 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1305 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1306 goto nla_put_failure;
1b8ec87a 1307 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1308 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1309 goto nla_put_failure;
1b8ec87a 1310 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1311 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1312 goto nla_put_failure;
1b8ec87a 1313 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1314 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1315 goto nla_put_failure;
86e8cf98
JB		 1316 state->split_start++;
1317 if (state->split)
3713b4e3
JB		 1318 break;
1319 case 1:
1320 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1321 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1322 rdev->wiphy.cipher_suites))
3713b4e3 1323 goto nla_put_failure;
4745fc09 1324
3713b4e3 1325 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1326 rdev->wiphy.max_num_pmkids))
3713b4e3 1327 goto nla_put_failure;
b23aa676 1328
1b8ec87a 1329 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1330 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1331 goto nla_put_failure;
b23aa676 1332
3713b4e3 1333 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1334 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1335 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1336 rdev->wiphy.available_antennas_rx))
9360ffd1 1337 goto nla_put_failure;
b23aa676 1338
1b8ec87a 1339 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1340 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1341 rdev->wiphy.probe_resp_offload))
3713b4e3 1342 goto nla_put_failure;
8fdc621d 1343
1b8ec87a
ZG		 1344 if ((rdev->wiphy.available_antennas_tx ||
1345 rdev->wiphy.available_antennas_rx) &&
1346 rdev->ops->get_antenna) {
3713b4e3
JB		 1347 u32 tx_ant = 0, rx_ant = 0;
1348 int res;
1b8ec87a 1349 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1350 if (!res) {
1351 if (nla_put_u32(msg,
1352 NL80211_ATTR_WIPHY_ANTENNA_TX,
1353 tx_ant) ||
1354 nla_put_u32(msg,
1355 NL80211_ATTR_WIPHY_ANTENNA_RX,
1356 rx_ant))
1357 goto nla_put_failure;
1358 }
1359 }
a293911d 1360
86e8cf98
JB		 1361 state->split_start++;
1362 if (state->split)
3713b4e3
JB		 1363 break;
1364 case 2:
1365 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1366 rdev->wiphy.interface_modes))
3713b4e3 1367 goto nla_put_failure;
86e8cf98
JB		 1368 state->split_start++;
1369 if (state->split)
3713b4e3
JB		 1370 break;
1371 case 3:
1372 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1373 if (!nl_bands)
1374 goto nla_put_failure;
f7ca38df 1375
86e8cf98
JB		 1376 for (band = state->band_start;
1377 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1378 struct ieee80211_supported_band *sband;
2e161f78 1379
1b8ec87a 1380 sband = rdev->wiphy.bands[band];
2e161f78 1381
3713b4e3
JB		 1382 if (!sband)
1383 continue;
1384
1385 nl_band = nla_nest_start(msg, band);
1386 if (!nl_band)
2e161f78 1387 goto nla_put_failure;
3713b4e3 1388
86e8cf98 1389 switch (state->chan_start) {
3713b4e3
JB		 1390 case 0:
1391 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1392 goto nla_put_failure;
86e8cf98
JB		 1393 state->chan_start++;
1394 if (state->split)
3713b4e3
JB		 1395 break;
1396 default:
1397 /* add frequencies */
1398 nl_freqs = nla_nest_start(
1399 msg, NL80211_BAND_ATTR_FREQS);
1400 if (!nl_freqs)
1401 goto nla_put_failure;
1402
86e8cf98 1403 for (i = state->chan_start - 1;
3713b4e3
JB		 1404 i < sband->n_channels;
1405 i++) {
1406 nl_freq = nla_nest_start(msg, i);
1407 if (!nl_freq)
1408 goto nla_put_failure;
1409
1410 chan = &sband->channels[i];
1411
86e8cf98
JB		 1412 if (nl80211_msg_put_channel(
1413 msg, chan,
1414 state->split))
3713b4e3
JB		 1415 goto nla_put_failure;
1416
1417 nla_nest_end(msg, nl_freq);
86e8cf98 1418 if (state->split)
3713b4e3
JB		 1419 break;
1420 }
1421 if (i < sband->n_channels)
86e8cf98 1422 state->chan_start = i + 2;
3713b4e3 1423 else
86e8cf98 1424 state->chan_start = 0;
3713b4e3
JB		 1425 nla_nest_end(msg, nl_freqs);
1426 }
1427
1428 nla_nest_end(msg, nl_band);
1429
86e8cf98 1430 if (state->split) {
3713b4e3 1431 /* start again here */
86e8cf98 1432 if (state->chan_start)
3713b4e3
JB		 1433 band--;
1434 break;
2e161f78 1435 }
2e161f78 1436 }
3713b4e3 1437 nla_nest_end(msg, nl_bands);
2e161f78 1438
3713b4e3 1439 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1440 state->band_start = band + 1;
3713b4e3 1441 else
86e8cf98 1442 state->band_start = 0;
74b70a4e 1443
3713b4e3 1444 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1445 if (state->band_start == 0 && state->chan_start == 0)
1446 state->split_start++;
1447 if (state->split)
3713b4e3
JB		 1448 break;
1449 case 4:
1450 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1451 if (!nl_cmds)
2e161f78
JB		 1452 goto nla_put_failure;
1453
3713b4e3
JB		 1454 i = 0;
1455#define CMD(op, n) \
1456 do { \
1b8ec87a 1457 if (rdev->ops->op) { \
3713b4e3
JB		 1458 i++; \
1459 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1460 goto nla_put_failure; \
1461 } \
1462 } while (0)
1463
1464 CMD(add_virtual_intf, NEW_INTERFACE);
1465 CMD(change_virtual_intf, SET_INTERFACE);
1466 CMD(add_key, NEW_KEY);
1467 CMD(start_ap, START_AP);
1468 CMD(add_station, NEW_STATION);
1469 CMD(add_mpath, NEW_MPATH);
1470 CMD(update_mesh_config, SET_MESH_CONFIG);
1471 CMD(change_bss, SET_BSS);
1472 CMD(auth, AUTHENTICATE);
1473 CMD(assoc, ASSOCIATE);
1474 CMD(deauth, DEAUTHENTICATE);
1475 CMD(disassoc, DISASSOCIATE);
1476 CMD(join_ibss, JOIN_IBSS);
1477 CMD(join_mesh, JOIN_MESH);
1478 CMD(set_pmksa, SET_PMKSA);
1479 CMD(del_pmksa, DEL_PMKSA);
1480 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1481 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1482 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1483 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1484 CMD(mgmt_tx, FRAME);
1485 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1486 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1487 i++;
1488 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1489 goto nla_put_failure;
2e161f78 1490 }
1b8ec87a
ZG		 1491 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1492 rdev->ops->join_mesh) {
3713b4e3
JB		 1493 i++;
1494 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1495 goto nla_put_failure;
1496 }
1497 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1498 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1499 CMD(tdls_mgmt, TDLS_MGMT);
1500 CMD(tdls_oper, TDLS_OPER);
1501 }
1b8ec87a 1502 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1503 CMD(sched_scan_start, START_SCHED_SCAN);
1504 CMD(probe_client, PROBE_CLIENT);
1505 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1506 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1507 i++;
1508 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1509 goto nla_put_failure;
1510 }
1511 CMD(start_p2p_device, START_P2P_DEVICE);
1512 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1513#ifdef CONFIG_NL80211_TESTMODE
1514 CMD(testmode_cmd, TESTMODE);
1515#endif
86e8cf98 1516 if (state->split) {
5de17984
AS		 1517 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1518 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1519 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1520 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1521 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1522 if (rdev->wiphy.features &
1523 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1524 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1525 }
02df00eb 1526 /* add into the if now */
3713b4e3 1527#undef CMD
ff1b6e69 1528
1b8ec87a 1529 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1530 i++;
1531 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1532 goto nla_put_failure;
ff1b6e69
JB		 1533 }
1534
1b8ec87a 1535 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1536 i++;
1537 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1538 goto nla_put_failure;
1539 }
1540
1541 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1542 state->split_start++;
1543 if (state->split)
3713b4e3
JB		 1544 break;
1545 case 5:
1b8ec87a
ZG		 1546 if (rdev->ops->remain_on_channel &&
1547 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1548 nla_put_u32(msg,
1549 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1550 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1551 goto nla_put_failure;
1552
1b8ec87a 1553 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1554 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1555 goto nla_put_failure;
1556
1557 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1558 goto nla_put_failure;
86e8cf98
JB		 1559 state->split_start++;
1560 if (state->split)
3713b4e3
JB		 1561 break;
1562 case 6:
1563#ifdef CONFIG_PM
1b8ec87a 1564 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1565 goto nla_put_failure;
86e8cf98
JB		 1566 state->split_start++;
1567 if (state->split)
3713b4e3
JB		 1568 break;
1569#else
86e8cf98 1570 state->split_start++;
dfb89c56 1571#endif
3713b4e3
JB		 1572 case 7:
1573 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1574 rdev->wiphy.software_iftypes))
3713b4e3 1575 goto nla_put_failure;
ff1b6e69 1576
1b8ec87a 1577 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1578 state->split))
3713b4e3 1579 goto nla_put_failure;
7527a782 1580
86e8cf98
JB		 1581 state->split_start++;
1582 if (state->split)
3713b4e3
JB		 1583 break;
1584 case 8:
1b8ec87a 1585 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1586 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1587 rdev->wiphy.ap_sme_capa))
3713b4e3 1588 goto nla_put_failure;
7527a782 1589
1b8ec87a 1590 features = rdev->wiphy.features;
fe1abafd
JB		 1591 /*
1592 * We can only add the per-channel limit information if the
1593 * dump is split, otherwise it makes it too big. Therefore
1594 * only advertise it in that case.
1595 */
86e8cf98 1596 if (state->split)
fe1abafd
JB		 1597 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1598 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1599 goto nla_put_failure;
562a7480 1600
1b8ec87a 1601 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1602 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1603 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1604 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1605 goto nla_put_failure;
1f074bd8 1606
1b8ec87a
ZG		 1607 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1608 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1609 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1610 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1611 goto nla_put_failure;
7e7c8926 1612
3713b4e3
JB		 1613 /*
1614 * Any information below this point is only available to
1615 * applications that can deal with it being split. This
1616 * helps ensure that newly added capabilities don't break
1617 * older tools by overrunning their buffers.
1618 *
1619 * We still increment split_start so that in the split
1620 * case we'll continue with more data in the next round,
1621 * but break unconditionally so unsplit data stops here.
1622 */
86e8cf98 1623 state->split_start++;
3713b4e3
JB		 1624 break;
1625 case 9:
1b8ec87a 1626 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1627 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1628 rdev->wiphy.extended_capabilities_len,
1629 rdev->wiphy.extended_capabilities) ||
fe1abafd 1630 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1631 rdev->wiphy.extended_capabilities_len,
1632 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1633 goto nla_put_failure;
a50df0c4 1634
1b8ec87a 1635 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1636 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1637 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1638 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1639 goto nla_put_failure;
1640
be29b99a
AK		 1641 state->split_start++;
1642 break;
1643 case 10:
1b8ec87a 1644 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1645 goto nla_put_failure;
1646
1b8ec87a 1647 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1648 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1649 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1650 goto nla_put_failure;
b43504cf 1651
1b8ec87a 1652 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1653 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1654 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1655 goto nla_put_failure;
1656
ad7e718c
JB		 1657 state->split_start++;
1658 break;
1659 case 11:
1b8ec87a 1660 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1661 const struct nl80211_vendor_cmd_info *info;
1662 struct nlattr *nested;
1663
1664 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1665 if (!nested)
1666 goto nla_put_failure;
1667
1b8ec87a
ZG		 1668 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1669 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1670 if (nla_put(msg, i + 1, sizeof(*info), info))
1671 goto nla_put_failure;
1672 }
1673 nla_nest_end(msg, nested);
1674 }
1675
1b8ec87a 1676 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1677 const struct nl80211_vendor_cmd_info *info;
1678 struct nlattr *nested;
ad7e718c 1679
567ffc35
JB		 1680 nested = nla_nest_start(msg,
1681 NL80211_ATTR_VENDOR_EVENTS);
1682 if (!nested)
ad7e718c 1683 goto nla_put_failure;
567ffc35 1684
1b8ec87a
ZG		 1685 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1686 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1687 if (nla_put(msg, i + 1, sizeof(*info), info))
1688 goto nla_put_failure;
1689 }
1690 nla_nest_end(msg, nested);
1691 }
9a774c78
AO		 1692 state->split_start++;
1693 break;
1694 case 12:
1695 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1696 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1697 rdev->wiphy.max_num_csa_counters))
1698 goto nla_put_failure;
01e0daa4 1699
3713b4e3 1700 /* done */
86e8cf98 1701 state->split_start = 0;
3713b4e3
JB		 1702 break;
1703 }
3bb20556 1704 finish:
55682965
JB		 1705 return genlmsg_end(msg, hdr);
1706
1707 nla_put_failure:
bc3ed28c
TG		 1708 genlmsg_cancel(msg, hdr);
1709 return -EMSGSIZE;
55682965
JB		 1710}
1711
86e8cf98
JB		 1712static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1713 struct netlink_callback *cb,
1714 struct nl80211_dump_wiphy_state *state)
1715{
1716 struct nlattr **tb = nl80211_fam.attrbuf;
1717 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1718 tb, nl80211_fam.maxattr, nl80211_policy);
1719 /* ignore parse errors for backward compatibility */
1720 if (ret)
1721 return 0;
1722
1723 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1724 if (tb[NL80211_ATTR_WIPHY])
1725 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1726 if (tb[NL80211_ATTR_WDEV])
1727 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1728 if (tb[NL80211_ATTR_IFINDEX]) {
1729 struct net_device *netdev;
1730 struct cfg80211_registered_device *rdev;
1731 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1732
7f2b8562 1733 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1734 if (!netdev)
1735 return -ENODEV;
1736 if (netdev->ieee80211_ptr) {
f26cbf40 1737 rdev = wiphy_to_rdev(
86e8cf98
JB		 1738 netdev->ieee80211_ptr->wiphy);
1739 state->filter_wiphy = rdev->wiphy_idx;
1740 }
86e8cf98
JB		 1741 }
1742
1743 return 0;
1744}
1745
55682965
JB		 1746static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1747{
645e77de 1748 int idx = 0, ret;
86e8cf98 1749 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1750 struct cfg80211_registered_device *rdev;
3a5a423b 1751
5fe231e8 1752 rtnl_lock();
86e8cf98
JB		 1753 if (!state) {
1754 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1755 if (!state) {
1756 rtnl_unlock();
86e8cf98 1757 return -ENOMEM;
3713b4e3 1758 }
86e8cf98
JB		 1759 state->filter_wiphy = -1;
1760 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1761 if (ret) {
1762 kfree(state);
1763 rtnl_unlock();
1764 return ret;
3713b4e3 1765 }
86e8cf98 1766 cb->args[0] = (long)state;
3713b4e3
JB		 1767 }
1768
1b8ec87a
ZG		 1769 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1770 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1771 continue;
86e8cf98 1772 if (++idx <= state->start)
55682965 1773 continue;
86e8cf98 1774 if (state->filter_wiphy != -1 &&
1b8ec87a 1775 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1776 continue;
1777 /* attempt to fit multiple wiphy data chunks into the skb */
1778 do {
3bb20556
JB		 1779 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1780 skb,
3713b4e3
JB		 1781 NETLINK_CB(cb->skb).portid,
1782 cb->nlh->nlmsg_seq,
86e8cf98 1783 NLM_F_MULTI, state);
3713b4e3
JB		 1784 if (ret < 0) {
1785 /*
1786 * If sending the wiphy data didn't fit (ENOBUFS
1787 * or EMSGSIZE returned), this SKB is still
1788 * empty (so it's not too big because another
1789 * wiphy dataset is already in the skb) and
1790 * we've not tried to adjust the dump allocation
1791 * yet ... then adjust the alloc size to be
1792 * bigger, and return 1 but with the empty skb.
1793 * This results in an empty message being RX'ed
1794 * in userspace, but that is ignored.
1795 *
1796 * We can then retry with the larger buffer.
1797 */
1798 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1799 !skb->len && !state->split &&
3713b4e3
JB		 1800 cb->min_dump_alloc < 4096) {
1801 cb->min_dump_alloc = 4096;
f12cb289 1802 state->split_start = 0;
d98cae64 1803 rtnl_unlock();
3713b4e3
JB		 1804 return 1;
1805 }
1806 idx--;
1807 break;
645e77de 1808 }
86e8cf98 1809 } while (state->split_start > 0);
3713b4e3 1810 break;
55682965 1811 }
5fe231e8 1812 rtnl_unlock();
55682965 1813
86e8cf98 1814 state->start = idx;
55682965
JB		 1815
1816 return skb->len;
1817}
1818
86e8cf98
JB		 1819static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1820{
1821 kfree((void *)cb->args[0]);
1822 return 0;
1823}
1824
55682965
JB		 1825static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1826{
1827 struct sk_buff *msg;
1b8ec87a 1828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1829 struct nl80211_dump_wiphy_state state = {};
55682965 1830
645e77de 1831 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1832 if (!msg)
4c476991 1833 return -ENOMEM;
55682965 1834
3bb20556
JB		 1835 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1836 info->snd_portid, info->snd_seq, 0,
86e8cf98 1837 &state) < 0) {
4c476991
JB		 1838 nlmsg_free(msg);
1839 return -ENOBUFS;
1840 }
55682965 1841
134e6375 1842 return genlmsg_reply(msg, info);
55682965
JB		 1843}
1844
31888487
JM		 1845static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1846 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1847 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1848 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1849 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1850 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1851};
1852
1853static int parse_txq_params(struct nlattr *tb[],
1854 struct ieee80211_txq_params *txq_params)
1855{
a3304b0a 1856 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1857 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1858 !tb[NL80211_TXQ_ATTR_AIFS])
1859 return -EINVAL;
1860
a3304b0a 1861 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1862 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1863 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1864 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1865 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1866
a3304b0a
JB		 1867 if (txq_params->ac >= NL80211_NUM_ACS)
1868 return -EINVAL;
1869
31888487
JM		 1870 return 0;
1871}
1872
f444de05
JB		 1873static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1874{
1875 /*
cc1d2806
JB		 1876 * You can only set the channel explicitly for WDS interfaces,
1877 * all others have their channel managed via their respective
1878 * "establish a connection" command (connect, join, ...)
1879 *
1880 * For AP/GO and mesh mode, the channel can be set with the
1881 * channel userspace API, but is only stored and passed to the
1882 * low-level driver when the AP starts or the mesh is joined.
1883 * This is for backward compatibility, userspace can also give
1884 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1885 *
1886 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1887 * whatever else is going on, so they have their own special
1888 * operation to set the monitor channel if possible.
f444de05
JB		 1889 */
1890 return !wdev ||
1891 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1892 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1893 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1894 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1895}
1896
683b6d3b
JB		 1897static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1898 struct genl_info *info,
1899 struct cfg80211_chan_def *chandef)
1900{
dbeca2ea 1901 u32 control_freq;
683b6d3b
JB		 1902
1903 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1904 return -EINVAL;
1905
1906 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1907
1908 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1909 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1910 chandef->center_freq1 = control_freq;
1911 chandef->center_freq2 = 0;
683b6d3b
JB		 1912
1913 /* Primary channel not allowed */
1914 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1915 return -EINVAL;
1916
3d9d1d66
JB		 1917 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1918 enum nl80211_channel_type chantype;
1919
1920 chantype = nla_get_u32(
1921 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1922
1923 switch (chantype) {
1924 case NL80211_CHAN_NO_HT:
1925 case NL80211_CHAN_HT20:
1926 case NL80211_CHAN_HT40PLUS:
1927 case NL80211_CHAN_HT40MINUS:
1928 cfg80211_chandef_create(chandef, chandef->chan,
1929 chantype);
1930 break;
1931 default:
1932 return -EINVAL;
1933 }
1934 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1935 chandef->width =
1936 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1937 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1938 chandef->center_freq1 =
1939 nla_get_u32(
1940 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1941 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1942 chandef->center_freq2 =
1943 nla_get_u32(
1944 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1945 }
1946
9f5e8f6e 1947 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1948 return -EINVAL;
1949
9f5e8f6e
JB		 1950 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1951 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1952 return -EINVAL;
1953
2f301ab2
SW		 1954 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1955 chandef->width == NL80211_CHAN_WIDTH_10) &&
1956 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1957 return -EINVAL;
1958
683b6d3b
JB		 1959 return 0;
1960}
1961
f444de05 1962static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1963 struct net_device *dev,
f444de05
JB		 1964 struct genl_info *info)
1965{
683b6d3b 1966 struct cfg80211_chan_def chandef;
f444de05 1967 int result;
e8c9bd5b 1968 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1969 struct wireless_dev *wdev = NULL;
e8c9bd5b 1970
e16821bc
JM		 1971 if (dev)
1972 wdev = dev->ieee80211_ptr;
f444de05
JB		 1973 if (!nl80211_can_set_dev_channel(wdev))
1974 return -EOPNOTSUPP;
e16821bc
JM		 1975 if (wdev)
1976 iftype = wdev->iftype;
f444de05 1977
683b6d3b
JB		 1978 result = nl80211_parse_chandef(rdev, info, &chandef);
1979 if (result)
1980 return result;
f444de05 1981
e8c9bd5b 1982 switch (iftype) {
aa430da4
JB		 1983 case NL80211_IFTYPE_AP:
1984 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1985 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1986 result = -EINVAL;
1987 break;
1988 }
e16821bc
JM		 1989 if (wdev->beacon_interval) {
1990 if (!dev || !rdev->ops->set_ap_chanwidth ||
1991 !(rdev->wiphy.features &
1992 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1993 result = -EBUSY;
1994 break;
1995 }
1996
1997 /* Only allow dynamic channel width changes */
1998 if (chandef.chan != wdev->preset_chandef.chan) {
1999 result = -EBUSY;
2000 break;
2001 }
2002 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2003 if (result)
2004 break;
2005 }
683b6d3b 2006 wdev->preset_chandef = chandef;
aa430da4
JB		 2007 result = 0;
2008 break;
cc1d2806 2009 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2010 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2011 break;
e8c9bd5b 2012 case NL80211_IFTYPE_MONITOR:
683b6d3b 2013 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2014 break;
aa430da4 2015 default:
e8c9bd5b 2016 result = -EINVAL;
f444de05 2017 }
f444de05
JB		 2018
2019 return result;
2020}
2021
2022static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2023{
4c476991
JB		 2024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2025 struct net_device *netdev = info->user_ptr[1];
f444de05 2026
e16821bc 2027 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2028}
2029
e8347eba
BJ		 2030static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2031{
43b19952
JB		 2032 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2033 struct net_device *dev = info->user_ptr[1];
2034 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2035 const u8 *bssid;
e8347eba
BJ		 2036
2037 if (!info->attrs[NL80211_ATTR_MAC])
2038 return -EINVAL;
2039
43b19952
JB		 2040 if (netif_running(dev))
2041 return -EBUSY;
e8347eba 2042
43b19952
JB		 2043 if (!rdev->ops->set_wds_peer)
2044 return -EOPNOTSUPP;
e8347eba 2045
43b19952
JB		 2046 if (wdev->iftype != NL80211_IFTYPE_WDS)
2047 return -EOPNOTSUPP;
e8347eba
BJ		 2048
2049 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2050 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2051}
2052
2053
55682965
JB		 2054static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2055{
2056 struct cfg80211_registered_device *rdev;
f444de05
JB		 2057 struct net_device *netdev = NULL;
2058 struct wireless_dev *wdev;
a1e567c8 2059 int result = 0, rem_txq_params = 0;
31888487 2060 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2061 u32 changed;
2062 u8 retry_short = 0, retry_long = 0;
2063 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2064 u8 coverage_class = 0;
55682965 2065
5fe231e8
JB		 2066 ASSERT_RTNL();
2067
f444de05
JB		 2068 /*
2069 * Try to find the wiphy and netdev. Normally this
2070 * function shouldn't need the netdev, but this is
2071 * done for backward compatibility -- previously
2072 * setting the channel was done per wiphy, but now
2073 * it is per netdev. Previous userland like hostapd
2074 * also passed a netdev to set_wiphy, so that it is
2075 * possible to let that go to the right netdev!
2076 */
4bbf4d56 2077
f444de05
JB		 2078 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2079 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2080
7f2b8562 2081 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2082 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2083 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2084 else
f444de05 2085 netdev = NULL;
4bbf4d56
JB		 2086 }
2087
f444de05 2088 if (!netdev) {
878d9ec7
JB		 2089 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2090 info->attrs);
5fe231e8 2091 if (IS_ERR(rdev))
4c476991 2092 return PTR_ERR(rdev);
f444de05
JB		 2093 wdev = NULL;
2094 netdev = NULL;
2095 result = 0;
71fe96bf 2096 } else
f444de05 2097 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2098
2099 /*
2100 * end workaround code, by now the rdev is available
2101 * and locked, and wdev may or may not be NULL.
2102 */
4bbf4d56
JB		 2103
2104 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2105 result = cfg80211_dev_rename(
2106 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2107
4bbf4d56 2108 if (result)
7f2b8562 2109 return result;
31888487
JM		 2110
2111 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2112 struct ieee80211_txq_params txq_params;
2113 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2114
7f2b8562
YX		 2115 if (!rdev->ops->set_txq_params)
2116 return -EOPNOTSUPP;
31888487 2117
7f2b8562
YX		 2118 if (!netdev)
2119 return -EINVAL;
f70f01c2 2120
133a3ff2 2121 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2122 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2123 return -EINVAL;
133a3ff2 2124
7f2b8562
YX		 2125 if (!netif_running(netdev))
2126 return -ENETDOWN;
2b5f8b0b 2127
31888487
JM		 2128 nla_for_each_nested(nl_txq_params,
2129 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2130 rem_txq_params) {
ae811e21
JB		 2131 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2132 nla_data(nl_txq_params),
2133 nla_len(nl_txq_params),
2134 txq_params_policy);
2135 if (result)
2136 return result;
31888487
JM		 2137 result = parse_txq_params(tb, &txq_params);
2138 if (result)
7f2b8562 2139 return result;
31888487 2140
e35e4d28
HG		 2141 result = rdev_set_txq_params(rdev, netdev,
2142 &txq_params);
31888487 2143 if (result)
7f2b8562 2144 return result;
31888487
JM		 2145 }
2146 }
55682965 2147
72bdcf34 2148 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2149 result = __nl80211_set_channel(
2150 rdev,
2151 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2152 info);
72bdcf34 2153 if (result)
7f2b8562 2154 return result;
72bdcf34
JM		 2155 }
2156
98d2ff8b 2157 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2158 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2159 enum nl80211_tx_power_setting type;
2160 int idx, mbm = 0;
2161
c8442118
JB		 2162 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2163 txp_wdev = NULL;
2164
7f2b8562
YX		 2165 if (!rdev->ops->set_tx_power)
2166 return -EOPNOTSUPP;
98d2ff8b
JO		 2167
2168 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2169 type = nla_get_u32(info->attrs[idx]);
2170
2171 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2172 (type != NL80211_TX_POWER_AUTOMATIC))
2173 return -EINVAL;
98d2ff8b
JO		 2174
2175 if (type != NL80211_TX_POWER_AUTOMATIC) {
2176 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2177 mbm = nla_get_u32(info->attrs[idx]);
2178 }
2179
c8442118 2180 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2181 if (result)
7f2b8562 2182 return result;
98d2ff8b
JO		 2183 }
2184
afe0cbf8
BR		 2185 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2186 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2187 u32 tx_ant, rx_ant;
7f531e03
BR		 2188 if ((!rdev->wiphy.available_antennas_tx &&
2189 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2190 !rdev->ops->set_antenna)
2191 return -EOPNOTSUPP;
afe0cbf8
BR		 2192
2193 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2194 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2195
a7ffac95 2196 /* reject antenna configurations which don't match the
7f531e03
BR		 2197 * available antenna masks, except for the "all" mask */
2198 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2199 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2200 return -EINVAL;
a7ffac95 2201
7f531e03
BR		 2202 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2203 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2204
e35e4d28 2205 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2206 if (result)
7f2b8562 2207 return result;
afe0cbf8
BR		 2208 }
2209
b9a5f8ca
JM		 2210 changed = 0;
2211
2212 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2213 retry_short = nla_get_u8(
2214 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2215 if (retry_short == 0)
2216 return -EINVAL;
2217
b9a5f8ca
JM		 2218 changed |= WIPHY_PARAM_RETRY_SHORT;
2219 }
2220
2221 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2222 retry_long = nla_get_u8(
2223 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2224 if (retry_long == 0)
2225 return -EINVAL;
2226
b9a5f8ca
JM		 2227 changed |= WIPHY_PARAM_RETRY_LONG;
2228 }
2229
2230 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2231 frag_threshold = nla_get_u32(
2232 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2233 if (frag_threshold < 256)
2234 return -EINVAL;
2235
b9a5f8ca
JM		 2236 if (frag_threshold != (u32) -1) {
2237 /*
2238 * Fragments (apart from the last one) are required to
2239 * have even length. Make the fragmentation code
2240 * simpler by stripping LSB should someone try to use
2241 * odd threshold value.
2242 */
2243 frag_threshold &= ~0x1;
2244 }
2245 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2246 }
2247
2248 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2249 rts_threshold = nla_get_u32(
2250 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2251 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2252 }
2253
81077e82 2254 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2255 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2256 return -EINVAL;
2257
81077e82
LT		 2258 coverage_class = nla_get_u8(
2259 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2260 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2261 }
2262
3057dbfd
LB		 2263 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2264 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2265 return -EOPNOTSUPP;
2266
2267 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2268 }
2269
b9a5f8ca
JM		 2270 if (changed) {
2271 u8 old_retry_short, old_retry_long;
2272 u32 old_frag_threshold, old_rts_threshold;
81077e82 2273 u8 old_coverage_class;
b9a5f8ca 2274
7f2b8562
YX		 2275 if (!rdev->ops->set_wiphy_params)
2276 return -EOPNOTSUPP;
b9a5f8ca
JM		 2277
2278 old_retry_short = rdev->wiphy.retry_short;
2279 old_retry_long = rdev->wiphy.retry_long;
2280 old_frag_threshold = rdev->wiphy.frag_threshold;
2281 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2282 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2283
2284 if (changed & WIPHY_PARAM_RETRY_SHORT)
2285 rdev->wiphy.retry_short = retry_short;
2286 if (changed & WIPHY_PARAM_RETRY_LONG)
2287 rdev->wiphy.retry_long = retry_long;
2288 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2289 rdev->wiphy.frag_threshold = frag_threshold;
2290 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2291 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2292 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2293 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2294
e35e4d28 2295 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2296 if (result) {
2297 rdev->wiphy.retry_short = old_retry_short;
2298 rdev->wiphy.retry_long = old_retry_long;
2299 rdev->wiphy.frag_threshold = old_frag_threshold;
2300 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2301 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2302 }
2303 }
7f2b8562 2304 return 0;
55682965
JB		 2305}
2306
71bbc994
JB		 2307static inline u64 wdev_id(struct wireless_dev *wdev)
2308{
2309 return (u64)wdev->identifier |
f26cbf40 2310 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2311}
55682965 2312
683b6d3b 2313static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2314 const struct cfg80211_chan_def *chandef)
683b6d3b 2315{
9f5e8f6e 2316 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2317
683b6d3b
JB		 2318 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2319 chandef->chan->center_freq))
2320 return -ENOBUFS;
3d9d1d66
JB		 2321 switch (chandef->width) {
2322 case NL80211_CHAN_WIDTH_20_NOHT:
2323 case NL80211_CHAN_WIDTH_20:
2324 case NL80211_CHAN_WIDTH_40:
2325 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2326 cfg80211_get_chandef_type(chandef)))
2327 return -ENOBUFS;
2328 break;
2329 default:
2330 break;
2331 }
2332 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2333 return -ENOBUFS;
2334 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2335 return -ENOBUFS;
2336 if (chandef->center_freq2 &&
2337 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2338 return -ENOBUFS;
2339 return 0;
2340}
2341
15e47304 2342static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2343 struct cfg80211_registered_device *rdev,
72fb2abc 2344 struct wireless_dev *wdev)
55682965 2345{
72fb2abc 2346 struct net_device *dev = wdev->netdev;
55682965
JB		 2347 void *hdr;
2348
15e47304 2349 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2350 if (!hdr)
2351 return -1;
2352
72fb2abc
JB		 2353 if (dev &&
2354 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2355 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2356 goto nla_put_failure;
2357
2358 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2359 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2360 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2361 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2362 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2363 rdev->devlist_generation ^
2364 (cfg80211_rdev_list_generation << 2)))
2365 goto nla_put_failure;
f5ea9120 2366
5b7ccaf3 2367 if (rdev->ops->get_channel) {
683b6d3b
JB		 2368 int ret;
2369 struct cfg80211_chan_def chandef;
2370
2371 ret = rdev_get_channel(rdev, wdev, &chandef);
2372 if (ret == 0) {
2373 if (nl80211_send_chandef(msg, &chandef))
2374 goto nla_put_failure;
2375 }
d91df0e3
PF		 2376 }
2377
b84e7a05
AQ		 2378 if (wdev->ssid_len) {
2379 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2380 goto nla_put_failure;
2381 }
2382
55682965
JB		 2383 return genlmsg_end(msg, hdr);
2384
2385 nla_put_failure:
bc3ed28c
TG		 2386 genlmsg_cancel(msg, hdr);
2387 return -EMSGSIZE;
55682965
JB		 2388}
2389
2390static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2391{
2392 int wp_idx = 0;
2393 int if_idx = 0;
2394 int wp_start = cb->args[0];
2395 int if_start = cb->args[1];
f5ea9120 2396 struct cfg80211_registered_device *rdev;
55682965
JB		 2397 struct wireless_dev *wdev;
2398
5fe231e8 2399 rtnl_lock();
f5ea9120
JB		 2400 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2401 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2402 continue;
bba95fef
JB		 2403 if (wp_idx < wp_start) {
2404 wp_idx++;
55682965 2405 continue;
bba95fef 2406 }
55682965
JB		 2407 if_idx = 0;
2408
89a54e48 2409 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2410 if (if_idx < if_start) {
2411 if_idx++;
55682965 2412 continue;
bba95fef 2413 }
15e47304 2414 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2415 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2416 rdev, wdev) < 0) {
bba95fef
JB		 2417 goto out;
2418 }
2419 if_idx++;
55682965 2420 }
bba95fef
JB		 2421
2422 wp_idx++;
55682965 2423 }
bba95fef 2424 out:
5fe231e8 2425 rtnl_unlock();
55682965
JB		 2426
2427 cb->args[0] = wp_idx;
2428 cb->args[1] = if_idx;
2429
2430 return skb->len;
2431}
2432
2433static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2434{
2435 struct sk_buff *msg;
1b8ec87a 2436 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2437 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2438
fd2120ca 2439 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2440 if (!msg)
4c476991 2441 return -ENOMEM;
55682965 2442
15e47304 2443 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2444 rdev, wdev) < 0) {
4c476991
JB		 2445 nlmsg_free(msg);
2446 return -ENOBUFS;
2447 }
55682965 2448
134e6375 2449 return genlmsg_reply(msg, info);
55682965
JB		 2450}
2451
66f7ac50
MW		 2452static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2453 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2454 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2455 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2456 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2457 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2458 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2459};
2460
2461static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2462{
2463 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2464 int flag;
2465
2466 *mntrflags = 0;
2467
2468 if (!nla)
2469 return -EINVAL;
2470
2471 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2472 nla, mntr_flags_policy))
2473 return -EINVAL;
2474
2475 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2476 if (flags[flag])
2477 *mntrflags |= (1<<flag);
2478
2479 return 0;
2480}
2481
9bc383de 2482static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2483 struct net_device *netdev, u8 use_4addr,
2484 enum nl80211_iftype iftype)
9bc383de 2485{
ad4bb6f8 2486 if (!use_4addr) {
f350a0a8 2487 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2488 return -EBUSY;
9bc383de 2489 return 0;
ad4bb6f8 2490 }
9bc383de
JB		 2491
2492 switch (iftype) {
2493 case NL80211_IFTYPE_AP_VLAN:
2494 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2495 return 0;
2496 break;
2497 case NL80211_IFTYPE_STATION:
2498 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2499 return 0;
2500 break;
2501 default:
2502 break;
2503 }
2504
2505 return -EOPNOTSUPP;
2506}
2507
55682965
JB		 2508static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2509{
4c476991 2510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2511 struct vif_params params;
e36d56b6 2512 int err;
04a773ad 2513 enum nl80211_iftype otype, ntype;
4c476991 2514 struct net_device *dev = info->user_ptr[1];
92ffe055 2515 u32 _flags, *flags = NULL;
ac7f9cfa 2516 bool change = false;
55682965 2517
2ec600d6
LCC		 2518 memset(&params, 0, sizeof(params));
2519
04a773ad 2520 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2521
723b038d 2522 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2523 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2524 if (otype != ntype)
ac7f9cfa 2525 change = true;
4c476991
JB		 2526 if (ntype > NL80211_IFTYPE_MAX)
2527 return -EINVAL;
723b038d
JB		 2528 }
2529
92ffe055 2530 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2531 struct wireless_dev *wdev = dev->ieee80211_ptr;
2532
4c476991
JB		 2533 if (ntype != NL80211_IFTYPE_MESH_POINT)
2534 return -EINVAL;
29cbe68c
JB		 2535 if (netif_running(dev))
2536 return -EBUSY;
2537
2538 wdev_lock(wdev);
2539 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2540 IEEE80211_MAX_MESH_ID_LEN);
2541 wdev->mesh_id_up_len =
2542 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2543 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2544 wdev->mesh_id_up_len);
2545 wdev_unlock(wdev);
2ec600d6
LCC		 2546 }
2547
8b787643
FF		 2548 if (info->attrs[NL80211_ATTR_4ADDR]) {
2549 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2550 change = true;
ad4bb6f8 2551 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2552 if (err)
4c476991 2553 return err;
8b787643
FF		 2554 } else {
2555 params.use_4addr = -1;
2556 }
2557
92ffe055 2558 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2559 if (ntype != NL80211_IFTYPE_MONITOR)
2560 return -EINVAL;
92ffe055
JB		 2561 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2562 &_flags);
ac7f9cfa 2563 if (err)
4c476991 2564 return err;
ac7f9cfa
JB		 2565
2566 flags = &_flags;
2567 change = true;
92ffe055 2568 }
3b85875a 2569
18003297 2570 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2571 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2572 return -EOPNOTSUPP;
2573
ac7f9cfa 2574 if (change)
3d54d255 2575 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2576 else
2577 err = 0;
60719ffd 2578
9bc383de
JB		 2579 if (!err && params.use_4addr != -1)
2580 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2581
55682965
JB		 2582 return err;
2583}
2584
2585static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2586{
4c476991 2587 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2588 struct vif_params params;
84efbb84 2589 struct wireless_dev *wdev;
1c90f9d4 2590 struct sk_buff *msg;
55682965
JB		 2591 int err;
2592 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2593 u32 flags;
55682965 2594
78f22b6a
JB		 2595 /* to avoid failing a new interface creation due to pending removal */
2596 cfg80211_destroy_ifaces(rdev);
2597
2ec600d6
LCC		 2598 memset(&params, 0, sizeof(params));
2599
55682965
JB		 2600 if (!info->attrs[NL80211_ATTR_IFNAME])
2601 return -EINVAL;
2602
2603 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2604 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2605 if (type > NL80211_IFTYPE_MAX)
2606 return -EINVAL;
2607 }
2608
79c97e97 2609 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2610 !(rdev->wiphy.interface_modes & (1 << type)))
2611 return -EOPNOTSUPP;
55682965 2612
e8f479b1
BG		 2613 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2614 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2615 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2616 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2617 ETH_ALEN);
2618 if (!is_valid_ether_addr(params.macaddr))
2619 return -EADDRNOTAVAIL;
2620 }
2621
9bc383de 2622 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2623 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2624 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2625 if (err)
4c476991 2626 return err;
9bc383de 2627 }
8b787643 2628
1c90f9d4
JB		 2629 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2630 if (!msg)
2631 return -ENOMEM;
2632
66f7ac50
MW		 2633 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2634 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2635 &flags);
e057d3c3 2636
18003297 2637 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2638 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2639 return -EOPNOTSUPP;
2640
e35e4d28
HG		 2641 wdev = rdev_add_virtual_intf(rdev,
2642 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2643 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2644 if (IS_ERR(wdev)) {
2645 nlmsg_free(msg);
84efbb84 2646 return PTR_ERR(wdev);
1c90f9d4 2647 }
2ec600d6 2648
78f22b6a
JB		 2649 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2650 wdev->owner_nlportid = info->snd_portid;
2651
98104fde
JB		 2652 switch (type) {
2653 case NL80211_IFTYPE_MESH_POINT:
2654 if (!info->attrs[NL80211_ATTR_MESH_ID])
2655 break;
29cbe68c
JB		 2656 wdev_lock(wdev);
2657 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2658 IEEE80211_MAX_MESH_ID_LEN);
2659 wdev->mesh_id_up_len =
2660 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2661 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2662 wdev->mesh_id_up_len);
2663 wdev_unlock(wdev);
98104fde
JB		 2664 break;
2665 case NL80211_IFTYPE_P2P_DEVICE:
2666 /*
2667 * P2P Device doesn't have a netdev, so doesn't go
2668 * through the netdev notifier and must be added here
2669 */
2670 mutex_init(&wdev->mtx);
2671 INIT_LIST_HEAD(&wdev->event_list);
2672 spin_lock_init(&wdev->event_lock);
2673 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2674 spin_lock_init(&wdev->mgmt_registrations_lock);
2675
98104fde
JB		 2676 wdev->identifier = ++rdev->wdev_id;
2677 list_add_rcu(&wdev->list, &rdev->wdev_list);
2678 rdev->devlist_generation++;
98104fde
JB		 2679 break;
2680 default:
2681 break;
29cbe68c
JB		 2682 }
2683
15e47304 2684 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2685 rdev, wdev) < 0) {
2686 nlmsg_free(msg);
2687 return -ENOBUFS;
2688 }
2689
2690 return genlmsg_reply(msg, info);
55682965
JB		 2691}
2692
2693static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2694{
4c476991 2695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2696 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2697
4c476991
JB		 2698 if (!rdev->ops->del_virtual_intf)
2699 return -EOPNOTSUPP;
55682965 2700
84efbb84
JB		 2701 /*
2702 * If we remove a wireless device without a netdev then clear
2703 * user_ptr[1] so that nl80211_post_doit won't dereference it
2704 * to check if it needs to do dev_put(). Otherwise it crashes
2705 * since the wdev has been freed, unlike with a netdev where
2706 * we need the dev_put() for the netdev to really be freed.
2707 */
2708 if (!wdev->netdev)
2709 info->user_ptr[1] = NULL;
2710
e35e4d28 2711 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2712}
2713
1d9d9213
SW		 2714static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2715{
2716 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2717 struct net_device *dev = info->user_ptr[1];
2718 u16 noack_map;
2719
2720 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2721 return -EINVAL;
2722
2723 if (!rdev->ops->set_noack_map)
2724 return -EOPNOTSUPP;
2725
2726 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2727
e35e4d28 2728 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2729}
2730
41ade00f
JB		 2731struct get_key_cookie {
2732 struct sk_buff *msg;
2733 int error;
b9454e83 2734 int idx;
41ade00f
JB		 2735};
2736
2737static void get_key_callback(void *c, struct key_params *params)
2738{
b9454e83 2739 struct nlattr *key;
41ade00f
JB		 2740 struct get_key_cookie *cookie = c;
2741
9360ffd1
DM		 2742 if ((params->key &&
2743 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2744 params->key_len, params->key)) ||
2745 (params->seq &&
2746 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2747 params->seq_len, params->seq)) ||
2748 (params->cipher &&
2749 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2750 params->cipher)))
2751 goto nla_put_failure;
41ade00f 2752
b9454e83
JB		 2753 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2754 if (!key)
2755 goto nla_put_failure;
2756
9360ffd1
DM		 2757 if ((params->key &&
2758 nla_put(cookie->msg, NL80211_KEY_DATA,
2759 params->key_len, params->key)) ||
2760 (params->seq &&
2761 nla_put(cookie->msg, NL80211_KEY_SEQ,
2762 params->seq_len, params->seq)) ||
2763 (params->cipher &&
2764 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2765 params->cipher)))
2766 goto nla_put_failure;
b9454e83 2767
9360ffd1
DM		 2768 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2769 goto nla_put_failure;
b9454e83
JB		 2770
2771 nla_nest_end(cookie->msg, key);
2772
41ade00f
JB		 2773 return;
2774 nla_put_failure:
2775 cookie->error = 1;
2776}
2777
2778static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2779{
4c476991 2780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2781 int err;
4c476991 2782 struct net_device *dev = info->user_ptr[1];
41ade00f 2783 u8 key_idx = 0;
e31b8213
JB		 2784 const u8 *mac_addr = NULL;
2785 bool pairwise;
41ade00f
JB		 2786 struct get_key_cookie cookie = {
2787 .error = 0,
2788 };
2789 void *hdr;
2790 struct sk_buff *msg;
2791
2792 if (info->attrs[NL80211_ATTR_KEY_IDX])
2793 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2794
3cfcf6ac 2795 if (key_idx > 5)
41ade00f
JB		 2796 return -EINVAL;
2797
2798 if (info->attrs[NL80211_ATTR_MAC])
2799 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2800
e31b8213
JB		 2801 pairwise = !!mac_addr;
2802 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2803 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2804 if (kt >= NUM_NL80211_KEYTYPES)
2805 return -EINVAL;
2806 if (kt != NL80211_KEYTYPE_GROUP &&
2807 kt != NL80211_KEYTYPE_PAIRWISE)
2808 return -EINVAL;
2809 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2810 }
2811
4c476991
JB		 2812 if (!rdev->ops->get_key)
2813 return -EOPNOTSUPP;
41ade00f 2814
fd2120ca 2815 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2816 if (!msg)
2817 return -ENOMEM;
41ade00f 2818
15e47304 2819 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2820 NL80211_CMD_NEW_KEY);
cb35fba3 2821 if (!hdr)
9fe271af 2822 goto nla_put_failure;
41ade00f
JB		 2823
2824 cookie.msg = msg;
b9454e83 2825 cookie.idx = key_idx;
41ade00f 2826
9360ffd1
DM		 2827 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2828 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2829 goto nla_put_failure;
2830 if (mac_addr &&
2831 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2832 goto nla_put_failure;
41ade00f 2833
e31b8213
JB		 2834 if (pairwise && mac_addr &&
2835 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2836 return -ENOENT;
2837
e35e4d28
HG		 2838 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2839 get_key_callback);
41ade00f
JB		 2840
2841 if (err)
6c95e2a2 2842 goto free_msg;
41ade00f
JB		 2843
2844 if (cookie.error)
2845 goto nla_put_failure;
2846
2847 genlmsg_end(msg, hdr);
4c476991 2848 return genlmsg_reply(msg, info);
41ade00f
JB		 2849
2850 nla_put_failure:
2851 err = -ENOBUFS;
6c95e2a2 2852 free_msg:
41ade00f 2853 nlmsg_free(msg);
41ade00f
JB		 2854 return err;
2855}
2856
2857static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2858{
4c476991 2859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2860 struct key_parse key;
41ade00f 2861 int err;
4c476991 2862 struct net_device *dev = info->user_ptr[1];
41ade00f 2863
b9454e83
JB		 2864 err = nl80211_parse_key(info, &key);
2865 if (err)
2866 return err;
41ade00f 2867
b9454e83 2868 if (key.idx < 0)
41ade00f
JB		 2869 return -EINVAL;
2870
b9454e83
JB		 2871 /* only support setting default key */
2872 if (!key.def && !key.defmgmt)
41ade00f
JB		 2873 return -EINVAL;
2874
dbd2fd65 2875 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2876
dbd2fd65
JB		 2877 if (key.def) {
2878 if (!rdev->ops->set_default_key) {
2879 err = -EOPNOTSUPP;
2880 goto out;
2881 }
41ade00f 2882
dbd2fd65
JB		 2883 err = nl80211_key_allowed(dev->ieee80211_ptr);
2884 if (err)
2885 goto out;
2886
e35e4d28 2887 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2888 key.def_uni, key.def_multi);
2889
2890 if (err)
2891 goto out;
fffd0934 2892
3d23e349 2893#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2894 dev->ieee80211_ptr->wext.default_key = key.idx;
2895#endif
2896 } else {
2897 if (key.def_uni || !key.def_multi) {
2898 err = -EINVAL;
2899 goto out;
2900 }
2901
2902 if (!rdev->ops->set_default_mgmt_key) {
2903 err = -EOPNOTSUPP;
2904 goto out;
2905 }
2906
2907 err = nl80211_key_allowed(dev->ieee80211_ptr);
2908 if (err)
2909 goto out;
2910
e35e4d28 2911 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2912 if (err)
2913 goto out;
2914
2915#ifdef CONFIG_CFG80211_WEXT
2916 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2917#endif
dbd2fd65
JB		 2918 }
2919
2920 out:
fffd0934 2921 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2922
41ade00f
JB		 2923 return err;
2924}
2925
2926static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2927{
4c476991 2928 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2929 int err;
4c476991 2930 struct net_device *dev = info->user_ptr[1];
b9454e83 2931 struct key_parse key;
e31b8213 2932 const u8 *mac_addr = NULL;
41ade00f 2933
b9454e83
JB		 2934 err = nl80211_parse_key(info, &key);
2935 if (err)
2936 return err;
41ade00f 2937
b9454e83 2938 if (!key.p.key)
41ade00f
JB		 2939 return -EINVAL;
2940
41ade00f
JB		 2941 if (info->attrs[NL80211_ATTR_MAC])
2942 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2943
e31b8213
JB		 2944 if (key.type == -1) {
2945 if (mac_addr)
2946 key.type = NL80211_KEYTYPE_PAIRWISE;
2947 else
2948 key.type = NL80211_KEYTYPE_GROUP;
2949 }
2950
2951 /* for now */
2952 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2953 key.type != NL80211_KEYTYPE_GROUP)
2954 return -EINVAL;
2955
4c476991
JB		 2956 if (!rdev->ops->add_key)
2957 return -EOPNOTSUPP;
25e47c18 2958
e31b8213
JB		 2959 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2960 key.type == NL80211_KEYTYPE_PAIRWISE,
2961 mac_addr))
4c476991 2962 return -EINVAL;
41ade00f 2963
fffd0934
JB		 2964 wdev_lock(dev->ieee80211_ptr);
2965 err = nl80211_key_allowed(dev->ieee80211_ptr);
2966 if (!err)
e35e4d28
HG		 2967 err = rdev_add_key(rdev, dev, key.idx,
2968 key.type == NL80211_KEYTYPE_PAIRWISE,
2969 mac_addr, &key.p);
fffd0934 2970 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2971
41ade00f
JB		 2972 return err;
2973}
2974
2975static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2976{
4c476991 2977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2978 int err;
4c476991 2979 struct net_device *dev = info->user_ptr[1];
41ade00f 2980 u8 *mac_addr = NULL;
b9454e83 2981 struct key_parse key;
41ade00f 2982
b9454e83
JB		 2983 err = nl80211_parse_key(info, &key);
2984 if (err)
2985 return err;
41ade00f
JB		 2986
2987 if (info->attrs[NL80211_ATTR_MAC])
2988 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2989
e31b8213
JB		 2990 if (key.type == -1) {
2991 if (mac_addr)
2992 key.type = NL80211_KEYTYPE_PAIRWISE;
2993 else
2994 key.type = NL80211_KEYTYPE_GROUP;
2995 }
2996
2997 /* for now */
2998 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2999 key.type != NL80211_KEYTYPE_GROUP)
3000 return -EINVAL;
3001
4c476991
JB		 3002 if (!rdev->ops->del_key)
3003 return -EOPNOTSUPP;
41ade00f 3004
fffd0934
JB		 3005 wdev_lock(dev->ieee80211_ptr);
3006 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 3007
3008 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3009 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3010 err = -ENOENT;
3011
fffd0934 3012 if (!err)
e35e4d28
HG		 3013 err = rdev_del_key(rdev, dev, key.idx,
3014 key.type == NL80211_KEYTYPE_PAIRWISE,
3015 mac_addr);
41ade00f 3016
3d23e349 3017#ifdef CONFIG_CFG80211_WEXT
08645126 3018 if (!err) {
b9454e83 3019 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3020 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3021 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3022 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3023 }
3024#endif
fffd0934 3025 wdev_unlock(dev->ieee80211_ptr);
08645126 3026
41ade00f
JB		 3027 return err;
3028}
3029
77765eaf
VT		 3030/* This function returns an error or the number of nested attributes */
3031static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3032{
3033 struct nlattr *attr;
3034 int n_entries = 0, tmp;
3035
3036 nla_for_each_nested(attr, nl_attr, tmp) {
3037 if (nla_len(attr) != ETH_ALEN)
3038 return -EINVAL;
3039
3040 n_entries++;
3041 }
3042
3043 return n_entries;
3044}
3045
3046/*
3047 * This function parses ACL information and allocates memory for ACL data.
3048 * On successful return, the calling function is responsible to free the
3049 * ACL buffer returned by this function.
3050 */
3051static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3052 struct genl_info *info)
3053{
3054 enum nl80211_acl_policy acl_policy;
3055 struct nlattr *attr;
3056 struct cfg80211_acl_data *acl;
3057 int i = 0, n_entries, tmp;
3058
3059 if (!wiphy->max_acl_mac_addrs)
3060 return ERR_PTR(-EOPNOTSUPP);
3061
3062 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3063 return ERR_PTR(-EINVAL);
3064
3065 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3066 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3067 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3068 return ERR_PTR(-EINVAL);
3069
3070 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3071 return ERR_PTR(-EINVAL);
3072
3073 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3074 if (n_entries < 0)
3075 return ERR_PTR(n_entries);
3076
3077 if (n_entries > wiphy->max_acl_mac_addrs)
3078 return ERR_PTR(-ENOTSUPP);
3079
3080 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3081 GFP_KERNEL);
3082 if (!acl)
3083 return ERR_PTR(-ENOMEM);
3084
3085 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3086 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3087 i++;
3088 }
3089
3090 acl->n_acl_entries = n_entries;
3091 acl->acl_policy = acl_policy;
3092
3093 return acl;
3094}
3095
3096static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3097{
3098 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3099 struct net_device *dev = info->user_ptr[1];
3100 struct cfg80211_acl_data *acl;
3101 int err;
3102
3103 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3104 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3105 return -EOPNOTSUPP;
3106
3107 if (!dev->ieee80211_ptr->beacon_interval)
3108 return -EINVAL;
3109
3110 acl = parse_acl_data(&rdev->wiphy, info);
3111 if (IS_ERR(acl))
3112 return PTR_ERR(acl);
3113
3114 err = rdev_set_mac_acl(rdev, dev, acl);
3115
3116 kfree(acl);
3117
3118 return err;
3119}
3120
a1193be8 3121static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3122 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3123{
8860020e 3124 bool haveinfo = false;
ed1b6cc7 3125
a1193be8
SW		 3126 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3127 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3128 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3129 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3130 return -EINVAL;
3131
8860020e 3132 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3133
a1193be8
SW		 3134 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3135 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3136 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3137 if (!bcn->head_len)
3138 return -EINVAL;
3139 haveinfo = true;
ed1b6cc7
JB		 3140 }
3141
a1193be8
SW		 3142 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3143 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3144 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3145 haveinfo = true;
ed1b6cc7
JB		 3146 }
3147
4c476991
JB		 3148 if (!haveinfo)
3149 return -EINVAL;
3b85875a 3150
a1193be8
SW		 3151 if (attrs[NL80211_ATTR_IE]) {
3152 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3153 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3154 }
3155
a1193be8 3156 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3157 bcn->proberesp_ies =
a1193be8 3158 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3159 bcn->proberesp_ies_len =
a1193be8 3160 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3161 }
3162
a1193be8 3163 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3164 bcn->assocresp_ies =
a1193be8 3165 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3166 bcn->assocresp_ies_len =
a1193be8 3167 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3168 }
3169
a1193be8
SW		 3170 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3171 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3172 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3173 }
3174
8860020e
JB		 3175 return 0;
3176}
3177
46c1dd0c
FF		 3178static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3179 struct cfg80211_ap_settings *params)
3180{
3181 struct wireless_dev *wdev;
3182 bool ret = false;
3183
89a54e48 3184 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3185 if (wdev->iftype != NL80211_IFTYPE_AP &&
3186 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3187 continue;
3188
683b6d3b 3189 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3190 continue;
3191
683b6d3b 3192 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3193 ret = true;
3194 break;
3195 }
3196
46c1dd0c
FF		 3197 return ret;
3198}
3199
e39e5b5e
JM		 3200static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3201 enum nl80211_auth_type auth_type,
3202 enum nl80211_commands cmd)
3203{
3204 if (auth_type > NL80211_AUTHTYPE_MAX)
3205 return false;
3206
3207 switch (cmd) {
3208 case NL80211_CMD_AUTHENTICATE:
3209 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3210 auth_type == NL80211_AUTHTYPE_SAE)
3211 return false;
3212 return true;
3213 case NL80211_CMD_CONNECT:
3214 case NL80211_CMD_START_AP:
3215 /* SAE not supported yet */
3216 if (auth_type == NL80211_AUTHTYPE_SAE)
3217 return false;
3218 return true;
3219 default:
3220 return false;
3221 }
3222}
3223
8860020e
JB		 3224static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3225{
3226 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3227 struct net_device *dev = info->user_ptr[1];
3228 struct wireless_dev *wdev = dev->ieee80211_ptr;
3229 struct cfg80211_ap_settings params;
3230 int err;
3231
3232 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3233 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3234 return -EOPNOTSUPP;
3235
3236 if (!rdev->ops->start_ap)
3237 return -EOPNOTSUPP;
3238
3239 if (wdev->beacon_interval)
3240 return -EALREADY;
3241
3242 memset(&params, 0, sizeof(params));
3243
3244 /* these are required for START_AP */
3245 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3246 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3247 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3248 return -EINVAL;
3249
a1193be8 3250 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3251 if (err)
3252 return err;
3253
3254 params.beacon_interval =
3255 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3256 params.dtim_period =
3257 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3258
3259 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3260 if (err)
3261 return err;
3262
3263 /*
3264 * In theory, some of these attributes should be required here
3265 * but since they were not used when the command was originally
3266 * added, keep them optional for old user space programs to let
3267 * them continue to work with drivers that do not need the
3268 * additional information -- drivers must check!
3269 */
3270 if (info->attrs[NL80211_ATTR_SSID]) {
3271 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3272 params.ssid_len =
3273 nla_len(info->attrs[NL80211_ATTR_SSID]);
3274 if (params.ssid_len == 0 ||
3275 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3276 return -EINVAL;
3277 }
3278
3279 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3280 params.hidden_ssid = nla_get_u32(
3281 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3282 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3283 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3284 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3285 return -EINVAL;
3286 }
3287
3288 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3289
3290 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3291 params.auth_type = nla_get_u32(
3292 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3293 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3294 NL80211_CMD_START_AP))
8860020e
JB		 3295 return -EINVAL;
3296 } else
3297 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3298
3299 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3300 NL80211_MAX_NR_CIPHER_SUITES);
3301 if (err)
3302 return err;
3303
1b658f11
VT		 3304 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3305 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3306 return -EOPNOTSUPP;
3307 params.inactivity_timeout = nla_get_u16(
3308 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3309 }
3310
53cabad7
JB		 3311 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3312 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3313 return -EINVAL;
3314 params.p2p_ctwindow =
3315 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3316 if (params.p2p_ctwindow > 127)
3317 return -EINVAL;
3318 if (params.p2p_ctwindow != 0 &&
3319 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3320 return -EINVAL;
3321 }
3322
3323 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3324 u8 tmp;
3325
3326 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3327 return -EINVAL;
3328 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3329 if (tmp > 1)
3330 return -EINVAL;
3331 params.p2p_opp_ps = tmp;
3332 if (params.p2p_opp_ps != 0 &&
3333 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3334 return -EINVAL;
3335 }
3336
aa430da4 3337 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3338 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3339 if (err)
3340 return err;
3341 } else if (wdev->preset_chandef.chan) {
3342 params.chandef = wdev->preset_chandef;
46c1dd0c 3343 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3344 return -EINVAL;
3345
174e0cd2
IP		 3346 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3347 wdev->iftype))
aa430da4
JB		 3348 return -EINVAL;
3349
77765eaf
VT		 3350 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3351 params.acl = parse_acl_data(&rdev->wiphy, info);
3352 if (IS_ERR(params.acl))
3353 return PTR_ERR(params.acl);
3354 }
3355
18998c38
EP		 3356 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3357 params.smps_mode =
3358 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3359 switch (params.smps_mode) {
3360 case NL80211_SMPS_OFF:
3361 break;
3362 case NL80211_SMPS_STATIC:
3363 if (!(rdev->wiphy.features &
3364 NL80211_FEATURE_STATIC_SMPS))
3365 return -EINVAL;
3366 break;
3367 case NL80211_SMPS_DYNAMIC:
3368 if (!(rdev->wiphy.features &
3369 NL80211_FEATURE_DYNAMIC_SMPS))
3370 return -EINVAL;
3371 break;
3372 default:
3373 return -EINVAL;
3374 }
3375 } else {
3376 params.smps_mode = NL80211_SMPS_OFF;
3377 }
3378
c56589ed 3379 wdev_lock(wdev);
e35e4d28 3380 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3381 if (!err) {
683b6d3b 3382 wdev->preset_chandef = params.chandef;
8860020e 3383 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3384 wdev->chandef = params.chandef;
06e191e2
AQ		 3385 wdev->ssid_len = params.ssid_len;
3386 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3387 }
c56589ed 3388 wdev_unlock(wdev);
77765eaf
VT		 3389
3390 kfree(params.acl);
3391
56d1893d 3392 return err;
ed1b6cc7
JB		 3393}
3394
8860020e
JB		 3395static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3396{
3397 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3398 struct net_device *dev = info->user_ptr[1];
3399 struct wireless_dev *wdev = dev->ieee80211_ptr;
3400 struct cfg80211_beacon_data params;
3401 int err;
3402
3403 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3404 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3405 return -EOPNOTSUPP;
3406
3407 if (!rdev->ops->change_beacon)
3408 return -EOPNOTSUPP;
3409
3410 if (!wdev->beacon_interval)
3411 return -EINVAL;
3412
a1193be8 3413 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3414 if (err)
3415 return err;
3416
c56589ed
SW		 3417 wdev_lock(wdev);
3418 err = rdev_change_beacon(rdev, dev, &params);
3419 wdev_unlock(wdev);
3420
3421 return err;
8860020e
JB		 3422}
3423
3424static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3425{
4c476991
JB		 3426 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3427 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3428
7c8d5e03 3429 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3430}
3431
5727ef1b
JB		 3432static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3433 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3434 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3435 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3436 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3437 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3438 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3439};
3440
eccb8e8f 3441static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3442 enum nl80211_iftype iftype,
eccb8e8f 3443 struct station_parameters *params)
5727ef1b
JB		 3444{
3445 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3446 struct nlattr *nla;
5727ef1b
JB		 3447 int flag;
3448
eccb8e8f
JB		 3449 /*
3450 * Try parsing the new attribute first so userspace
3451 * can specify both for older kernels.
3452 */
3453 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3454 if (nla) {
3455 struct nl80211_sta_flag_update *sta_flags;
3456
3457 sta_flags = nla_data(nla);
3458 params->sta_flags_mask = sta_flags->mask;
3459 params->sta_flags_set = sta_flags->set;
77ee7c89 3460 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3461 if ((params->sta_flags_mask |
3462 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3463 return -EINVAL;
3464 return 0;
3465 }
3466
3467 /* if present, parse the old attribute */
5727ef1b 3468
eccb8e8f 3469 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3470 if (!nla)
3471 return 0;
3472
3473 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3474 nla, sta_flags_policy))
3475 return -EINVAL;
3476
bdd3ae3d
JB		 3477 /*
3478 * Only allow certain flags for interface types so that
3479 * other attributes are silently ignored. Remember that
3480 * this is backward compatibility code with old userspace
3481 * and shouldn't be hit in other cases anyway.
3482 */
3483 switch (iftype) {
3484 case NL80211_IFTYPE_AP:
3485 case NL80211_IFTYPE_AP_VLAN:
3486 case NL80211_IFTYPE_P2P_GO:
3487 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3488 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3489 BIT(NL80211_STA_FLAG_WME) |
3490 BIT(NL80211_STA_FLAG_MFP);
3491 break;
3492 case NL80211_IFTYPE_P2P_CLIENT:
3493 case NL80211_IFTYPE_STATION:
3494 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3495 BIT(NL80211_STA_FLAG_TDLS_PEER);
3496 break;
3497 case NL80211_IFTYPE_MESH_POINT:
3498 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3499 BIT(NL80211_STA_FLAG_MFP) |
3500 BIT(NL80211_STA_FLAG_AUTHORIZED);
3501 default:
3502 return -EINVAL;
3503 }
5727ef1b 3504
3383b5a6
JB		 3505 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3506 if (flags[flag]) {
eccb8e8f 3507 params->sta_flags_set |= (1<<flag);
5727ef1b 3508
3383b5a6
JB		 3509 /* no longer support new API additions in old API */
3510 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3511 return -EINVAL;
3512 }
3513 }
3514
5727ef1b
JB		 3515 return 0;
3516}
3517
c8dcfd8a
FF		 3518static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3519 int attr)
3520{
3521 struct nlattr *rate;
8eb41c8d
VK		 3522 u32 bitrate;
3523 u16 bitrate_compat;
c8dcfd8a
FF		 3524
3525 rate = nla_nest_start(msg, attr);
3526 if (!rate)
db9c64cf 3527 return false;
c8dcfd8a
FF		 3528
3529 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3530 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3531 /* report 16-bit bitrate only if we can */
3532 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3533 if (bitrate > 0 &&
3534 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3535 return false;
3536 if (bitrate_compat > 0 &&
3537 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3538 return false;
3539
3540 if (info->flags & RATE_INFO_FLAGS_MCS) {
3541 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3542 return false;
3543 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3544 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3545 return false;
3546 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3547 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3548 return false;
3549 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3550 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3551 return false;
3552 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3553 return false;
3554 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3555 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3556 return false;
3557 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3558 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3559 return false;
3560 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3561 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3562 return false;
3563 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3564 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3565 return false;
3566 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3567 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3568 return false;
3569 }
c8dcfd8a
FF		 3570
3571 nla_nest_end(msg, rate);
3572 return true;
c8dcfd8a
FF		 3573}
3574
119363c7
FF		 3575static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3576 int id)
3577{
3578 void *attr;
3579 int i = 0;
3580
3581 if (!mask)
3582 return true;
3583
3584 attr = nla_nest_start(msg, id);
3585 if (!attr)
3586 return false;
3587
3588 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3589 if (!(mask & BIT(i)))
3590 continue;
3591
3592 if (nla_put_u8(msg, i, signal[i]))
3593 return false;
3594 }
3595
3596 nla_nest_end(msg, attr);
3597
3598 return true;
3599}
3600
15e47304 3601static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3602 int flags,
3603 struct cfg80211_registered_device *rdev,
3604 struct net_device *dev,
98b62183 3605 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3606{
3607 void *hdr;
f4263c98 3608 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3609
15e47304 3610 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3611 if (!hdr)
3612 return -1;
3613
9360ffd1
DM		 3614 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3615 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3616 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3617 goto nla_put_failure;
f5ea9120 3618
2ec600d6
LCC		 3619 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3620 if (!sinfoattr)
fd5b74dc 3621 goto nla_put_failure;
9360ffd1
DM		 3622 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3623 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3624 sinfo->connected_time))
3625 goto nla_put_failure;
3626 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3627 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3628 sinfo->inactive_time))
3629 goto nla_put_failure;
42745e03
VK		 3630 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3631 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3632 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3633 (u32)sinfo->rx_bytes))
9360ffd1 3634 goto nla_put_failure;
42745e03 3635 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3636 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3637 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3638 (u32)sinfo->tx_bytes))
3639 goto nla_put_failure;
3640 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3641 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3642 sinfo->rx_bytes))
3643 goto nla_put_failure;
3644 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3645 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3646 sinfo->tx_bytes))
3647 goto nla_put_failure;
3648 if ((sinfo->filled & STATION_INFO_LLID) &&
3649 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3650 goto nla_put_failure;
3651 if ((sinfo->filled & STATION_INFO_PLID) &&
3652 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3653 goto nla_put_failure;
3654 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3655 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3656 sinfo->plink_state))
3657 goto nla_put_failure;
66266b3a
JL		 3658 switch (rdev->wiphy.signal_type) {
3659 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3660 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3661 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3662 sinfo->signal))
3663 goto nla_put_failure;
3664 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3665 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3666 sinfo->signal_avg))
3667 goto nla_put_failure;
66266b3a
JL		 3668 break;
3669 default:
3670 break;
3671 }
119363c7
FF		 3672 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3673 if (!nl80211_put_signal(msg, sinfo->chains,
3674 sinfo->chain_signal,
3675 NL80211_STA_INFO_CHAIN_SIGNAL))
3676 goto nla_put_failure;
3677 }
3678 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3679 if (!nl80211_put_signal(msg, sinfo->chains,
3680 sinfo->chain_signal_avg,
3681 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3682 goto nla_put_failure;
3683 }
420e7fab 3684 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3685 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3686 NL80211_STA_INFO_TX_BITRATE))
3687 goto nla_put_failure;
3688 }
3689 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3690 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3691 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3692 goto nla_put_failure;
420e7fab 3693 }
9360ffd1
DM		 3694 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3695 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3696 sinfo->rx_packets))
3697 goto nla_put_failure;
3698 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3699 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3700 sinfo->tx_packets))
3701 goto nla_put_failure;
3702 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3703 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3704 sinfo->tx_retries))
3705 goto nla_put_failure;
3706 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3707 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3708 sinfo->tx_failed))
3709 goto nla_put_failure;
867d849f
AQ		 3710 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3711 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3712 sinfo->expected_throughput))
3713 goto nla_put_failure;
9360ffd1
DM		 3714 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3715 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3716 sinfo->beacon_loss_count))
3717 goto nla_put_failure;
3b1c5a53
MP		 3718 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3719 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3720 sinfo->local_pm))
3721 goto nla_put_failure;
3722 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3723 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3724 sinfo->peer_pm))
3725 goto nla_put_failure;
3726 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3727 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3728 sinfo->nonpeer_pm))
3729 goto nla_put_failure;
f4263c98
PS		 3730 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3731 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3732 if (!bss_param)
3733 goto nla_put_failure;
3734
9360ffd1
DM		 3735 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3736 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3737 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3738 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3739 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3740 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3741 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3742 sinfo->bss_param.dtim_period) ||
3743 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3744 sinfo->bss_param.beacon_interval))
3745 goto nla_put_failure;
f4263c98
PS		 3746
3747 nla_nest_end(msg, bss_param);
3748 }
9360ffd1
DM		 3749 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3750 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3751 sizeof(struct nl80211_sta_flag_update),
3752 &sinfo->sta_flags))
3753 goto nla_put_failure;
7eab0f64
JL		 3754 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3755 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3756 sinfo->t_offset))
3757 goto nla_put_failure;
2ec600d6 3758 nla_nest_end(msg, sinfoattr);
fd5b74dc 3759
9360ffd1
DM		 3760 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3761 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3762 sinfo->assoc_req_ies))
3763 goto nla_put_failure;
50d3dfb7 3764
fd5b74dc
JB		 3765 return genlmsg_end(msg, hdr);
3766
3767 nla_put_failure:
bc3ed28c
TG		 3768 genlmsg_cancel(msg, hdr);
3769 return -EMSGSIZE;
fd5b74dc
JB		 3770}
3771
2ec600d6 3772static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3773 struct netlink_callback *cb)
2ec600d6 3774{
2ec600d6 3775 struct station_info sinfo;
1b8ec87a 3776 struct cfg80211_registered_device *rdev;
97990a06 3777 struct wireless_dev *wdev;
2ec600d6 3778 u8 mac_addr[ETH_ALEN];
97990a06 3779 int sta_idx = cb->args[2];
2ec600d6 3780 int err;
2ec600d6 3781
1b8ec87a 3782 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3783 if (err)
3784 return err;
bba95fef 3785
97990a06
JB		 3786 if (!wdev->netdev) {
3787 err = -EINVAL;
3788 goto out_err;
3789 }
3790
1b8ec87a 3791 if (!rdev->ops->dump_station) {
eec60b03 3792 err = -EOPNOTSUPP;
bba95fef
JB		 3793 goto out_err;
3794 }
3795
bba95fef 3796 while (1) {
f612cedf 3797 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3798 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3799 mac_addr, &sinfo);
bba95fef
JB		 3800 if (err == -ENOENT)
3801 break;
3802 if (err)
3b85875a 3803 goto out_err;
bba95fef
JB		 3804
3805 if (nl80211_send_station(skb,
15e47304 3806 NETLINK_CB(cb->skb).portid,
bba95fef 3807 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3808 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3809 &sinfo) < 0)
3810 goto out;
3811
3812 sta_idx++;
3813 }
3814
3815
3816 out:
97990a06 3817 cb->args[2] = sta_idx;
bba95fef 3818 err = skb->len;
bba95fef 3819 out_err:
1b8ec87a 3820 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3821
3822 return err;
2ec600d6 3823}
fd5b74dc 3824
5727ef1b
JB		 3825static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3826{
4c476991
JB		 3827 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3828 struct net_device *dev = info->user_ptr[1];
2ec600d6 3829 struct station_info sinfo;
fd5b74dc
JB		 3830 struct sk_buff *msg;
3831 u8 *mac_addr = NULL;
4c476991 3832 int err;
fd5b74dc 3833
2ec600d6 3834 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3835
3836 if (!info->attrs[NL80211_ATTR_MAC])
3837 return -EINVAL;
3838
3839 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3840
4c476991
JB		 3841 if (!rdev->ops->get_station)
3842 return -EOPNOTSUPP;
3b85875a 3843
e35e4d28 3844 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3845 if (err)
4c476991 3846 return err;
2ec600d6 3847
fd2120ca 3848 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3849 if (!msg)
4c476991 3850 return -ENOMEM;
fd5b74dc 3851
15e47304 3852 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3853 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3854 nlmsg_free(msg);
3855 return -ENOBUFS;
3856 }
3b85875a 3857
4c476991 3858 return genlmsg_reply(msg, info);
5727ef1b
JB		 3859}
3860
77ee7c89
JB		 3861int cfg80211_check_station_change(struct wiphy *wiphy,
3862 struct station_parameters *params,
3863 enum cfg80211_station_type statype)
3864{
3865 if (params->listen_interval != -1)
3866 return -EINVAL;
c72e1140
AN		 3867 if (params->aid &&
3868 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3869 return -EINVAL;
3870
3871 /* When you run into this, adjust the code below for the new flag */
3872 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3873
3874 switch (statype) {
eef941e6
TP		 3875 case CFG80211_STA_MESH_PEER_KERNEL:
3876 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3877 /*
3878 * No ignoring the TDLS flag here -- the userspace mesh
3879 * code doesn't have the bug of including TDLS in the
3880 * mask everywhere.
3881 */
3882 if (params->sta_flags_mask &
3883 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3884 BIT(NL80211_STA_FLAG_MFP) |
3885 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3886 return -EINVAL;
3887 break;
3888 case CFG80211_STA_TDLS_PEER_SETUP:
3889 case CFG80211_STA_TDLS_PEER_ACTIVE:
3890 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3891 return -EINVAL;
3892 /* ignore since it can't change */
3893 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3894 break;
3895 default:
3896 /* disallow mesh-specific things */
3897 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3898 return -EINVAL;
3899 if (params->local_pm)
3900 return -EINVAL;
3901 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3902 return -EINVAL;
3903 }
3904
3905 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3906 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3907 /* TDLS can't be set, ... */
3908 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3909 return -EINVAL;
3910 /*
3911 * ... but don't bother the driver with it. This works around
3912 * a hostapd/wpa_supplicant issue -- it always includes the
3913 * TLDS_PEER flag in the mask even for AP mode.
3914 */
3915 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3916 }
3917
3918 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3919 /* reject other things that can't change */
3920 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3921 return -EINVAL;
3922 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3923 return -EINVAL;
3924 if (params->supported_rates)
3925 return -EINVAL;
3926 if (params->ext_capab || params->ht_capa || params->vht_capa)
3927 return -EINVAL;
3928 }
3929
3930 if (statype != CFG80211_STA_AP_CLIENT) {
3931 if (params->vlan)
3932 return -EINVAL;
3933 }
3934
3935 switch (statype) {
3936 case CFG80211_STA_AP_MLME_CLIENT:
3937 /* Use this only for authorizing/unauthorizing a station */
3938 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3939 return -EOPNOTSUPP;
3940 break;
3941 case CFG80211_STA_AP_CLIENT:
3942 /* accept only the listed bits */
3943 if (params->sta_flags_mask &
3944 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3945 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3946 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3947 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3948 BIT(NL80211_STA_FLAG_WME) |
3949 BIT(NL80211_STA_FLAG_MFP)))
3950 return -EINVAL;
3951
3952 /* but authenticated/associated only if driver handles it */
3953 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3954 params->sta_flags_mask &
3955 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3956 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3957 return -EINVAL;
3958 break;
3959 case CFG80211_STA_IBSS:
3960 case CFG80211_STA_AP_STA:
3961 /* reject any changes other than AUTHORIZED */
3962 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3963 return -EINVAL;
3964 break;
3965 case CFG80211_STA_TDLS_PEER_SETUP:
3966 /* reject any changes other than AUTHORIZED or WME */
3967 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3968 BIT(NL80211_STA_FLAG_WME)))
3969 return -EINVAL;
3970 /* force (at least) rates when authorizing */
3971 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3972 !params->supported_rates)
3973 return -EINVAL;
3974 break;
3975 case CFG80211_STA_TDLS_PEER_ACTIVE:
3976 /* reject any changes */
3977 return -EINVAL;
eef941e6 3978 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3979 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3980 return -EINVAL;
3981 break;
eef941e6 3982 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3983 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3984 return -EINVAL;
3985 break;
3986 }
3987
3988 return 0;
3989}
3990EXPORT_SYMBOL(cfg80211_check_station_change);
3991
5727ef1b 3992/*
c258d2de 3993 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3994 */
80b99899
JB		 3995static struct net_device *get_vlan(struct genl_info *info,
3996 struct cfg80211_registered_device *rdev)
5727ef1b 3997{
463d0183 3998 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3999 struct net_device *v;
4000 int ret;
4001
4002 if (!vlanattr)
4003 return NULL;
4004
4005 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4006 if (!v)
4007 return ERR_PTR(-ENODEV);
4008
4009 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4010 ret = -EINVAL;
4011 goto error;
5727ef1b 4012 }
80b99899 4013
77ee7c89
JB		 4014 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4015 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4016 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4017 ret = -EINVAL;
4018 goto error;
4019 }
4020
80b99899
JB		 4021 if (!netif_running(v)) {
4022 ret = -ENETDOWN;
4023 goto error;
4024 }
4025
4026 return v;
4027 error:
4028 dev_put(v);
4029 return ERR_PTR(ret);
5727ef1b
JB		 4030}
4031
94e860f1
JB		 4032static const struct nla_policy
4033nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4034 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4035 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4036};
4037
ff276691
JB		 4038static int nl80211_parse_sta_wme(struct genl_info *info,
4039 struct station_parameters *params)
df881293 4040{
df881293
JM		 4041 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4042 struct nlattr *nla;
4043 int err;
4044
df881293
JM		 4045 /* parse WME attributes if present */
4046 if (!info->attrs[NL80211_ATTR_STA_WME])
4047 return 0;
4048
4049 nla = info->attrs[NL80211_ATTR_STA_WME];
4050 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4051 nl80211_sta_wme_policy);
4052 if (err)
4053 return err;
4054
4055 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4056 params->uapsd_queues = nla_get_u8(
4057 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4058 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4059 return -EINVAL;
4060
4061 if (tb[NL80211_STA_WME_MAX_SP])
4062 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4063
4064 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4065 return -EINVAL;
4066
4067 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4068
4069 return 0;
4070}
4071
c01fc9ad
SD		 4072static int nl80211_parse_sta_channel_info(struct genl_info *info,
4073 struct station_parameters *params)
4074{
4075 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4076 params->supported_channels =
4077 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4078 params->supported_channels_len =
4079 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4080 /*
4081 * Need to include at least one (first channel, number of
4082 * channels) tuple for each subband, and must have proper
4083 * tuples for the rest of the data as well.
4084 */
4085 if (params->supported_channels_len < 2)
4086 return -EINVAL;
4087 if (params->supported_channels_len % 2)
4088 return -EINVAL;
4089 }
4090
4091 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4092 params->supported_oper_classes =
4093 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4094 params->supported_oper_classes_len =
4095 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4096 /*
4097 * The value of the Length field of the Supported Operating
4098 * Classes element is between 2 and 253.
4099 */
4100 if (params->supported_oper_classes_len < 2 ||
4101 params->supported_oper_classes_len > 253)
4102 return -EINVAL;
4103 }
4104 return 0;
4105}
4106
ff276691
JB		 4107static int nl80211_set_station_tdls(struct genl_info *info,
4108 struct station_parameters *params)
4109{
c01fc9ad 4110 int err;
ff276691 4111 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4112 if (info->attrs[NL80211_ATTR_PEER_AID])
4113 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4114 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4115 params->ht_capa =
4116 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4117 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4118 params->vht_capa =
4119 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4120
c01fc9ad
SD		 4121 err = nl80211_parse_sta_channel_info(info, params);
4122 if (err)
4123 return err;
4124
ff276691
JB		 4125 return nl80211_parse_sta_wme(info, params);
4126}
4127
5727ef1b
JB		 4128static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4129{
4c476991 4130 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4131 struct net_device *dev = info->user_ptr[1];
5727ef1b 4132 struct station_parameters params;
77ee7c89
JB		 4133 u8 *mac_addr;
4134 int err;
5727ef1b
JB		 4135
4136 memset(&params, 0, sizeof(params));
4137
4138 params.listen_interval = -1;
4139
77ee7c89
JB		 4140 if (!rdev->ops->change_station)
4141 return -EOPNOTSUPP;
4142
5727ef1b
JB		 4143 if (info->attrs[NL80211_ATTR_STA_AID])
4144 return -EINVAL;
4145
4146 if (!info->attrs[NL80211_ATTR_MAC])
4147 return -EINVAL;
4148
4149 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4150
4151 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4152 params.supported_rates =
4153 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4154 params.supported_rates_len =
4155 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4156 }
4157
9d62a986
JM		 4158 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4159 params.capability =
4160 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4161 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4162 }
4163
4164 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4165 params.ext_capab =
4166 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4167 params.ext_capab_len =
4168 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4169 }
4170
df881293 4171 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4172 return -EINVAL;
36aedc90 4173
bdd3ae3d 4174 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4175 return -EINVAL;
4176
f8bacc21 4177 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4178 params.plink_action =
f8bacc21
JB		 4179 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4180 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4181 return -EINVAL;
4182 }
2ec600d6 4183
f8bacc21 4184 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4185 params.plink_state =
f8bacc21
JB		 4186 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4187 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4188 return -EINVAL;
4189 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4190 }
9c3990aa 4191
3b1c5a53
MP		 4192 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4193 enum nl80211_mesh_power_mode pm = nla_get_u32(
4194 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4195
4196 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4197 pm > NL80211_MESH_POWER_MAX)
4198 return -EINVAL;
4199
4200 params.local_pm = pm;
4201 }
4202
77ee7c89
JB		 4203 /* Include parameters for TDLS peer (will check later) */
4204 err = nl80211_set_station_tdls(info, &params);
4205 if (err)
4206 return err;
4207
4208 params.vlan = get_vlan(info, rdev);
4209 if (IS_ERR(params.vlan))
4210 return PTR_ERR(params.vlan);
4211
a97f4424
JB		 4212 switch (dev->ieee80211_ptr->iftype) {
4213 case NL80211_IFTYPE_AP:
4214 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4215 case NL80211_IFTYPE_P2P_GO:
074ac8df 4216 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4217 case NL80211_IFTYPE_STATION:
267335d6 4218 case NL80211_IFTYPE_ADHOC:
a97f4424 4219 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4220 break;
4221 default:
77ee7c89
JB		 4222 err = -EOPNOTSUPP;
4223 goto out_put_vlan;
034d655e
JB		 4224 }
4225
77ee7c89 4226 /* driver will call cfg80211_check_station_change() */
e35e4d28 4227 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4228
77ee7c89 4229 out_put_vlan:
5727ef1b
JB		 4230 if (params.vlan)
4231 dev_put(params.vlan);
3b85875a 4232
5727ef1b
JB		 4233 return err;
4234}
4235
4236static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4237{
4c476991 4238 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4239 int err;
4c476991 4240 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4241 struct station_parameters params;
4242 u8 *mac_addr = NULL;
4243
4244 memset(&params, 0, sizeof(params));
4245
984c311b
JB		 4246 if (!rdev->ops->add_station)
4247 return -EOPNOTSUPP;
4248
5727ef1b
JB		 4249 if (!info->attrs[NL80211_ATTR_MAC])
4250 return -EINVAL;
4251
5727ef1b
JB		 4252 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4253 return -EINVAL;
4254
4255 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4256 return -EINVAL;
4257
5e4b6f56
JM		 4258 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4259 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4260 return -EINVAL;
4261
5727ef1b
JB		 4262 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4263 params.supported_rates =
4264 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4265 params.supported_rates_len =
4266 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4267 params.listen_interval =
4268 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4269
3d124ea2 4270 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4271 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4272 else
4273 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4274 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4275 return -EINVAL;
51b50fbe 4276
9d62a986
JM		 4277 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4278 params.capability =
4279 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4280 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4281 }
4282
4283 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4284 params.ext_capab =
4285 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4286 params.ext_capab_len =
4287 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4288 }
4289
36aedc90
JM		 4290 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4291 params.ht_capa =
4292 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4293
f461be3e
MP		 4294 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4295 params.vht_capa =
4296 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4297
60f4a7b1
MK		 4298 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4299 params.opmode_notif_used = true;
4300 params.opmode_notif =
4301 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4302 }
4303
f8bacc21 4304 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4305 params.plink_action =
f8bacc21
JB		 4306 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4307 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4308 return -EINVAL;
4309 }
96b78dff 4310
c01fc9ad
SD		 4311 err = nl80211_parse_sta_channel_info(info, &params);
4312 if (err)
4313 return err;
4314
ff276691
JB		 4315 err = nl80211_parse_sta_wme(info, &params);
4316 if (err)
4317 return err;
bdd90d5e 4318
bdd3ae3d 4319 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4320 return -EINVAL;
4321
77ee7c89
JB		 4322 /* When you run into this, adjust the code below for the new flag */
4323 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4324
bdd90d5e
JB		 4325 switch (dev->ieee80211_ptr->iftype) {
4326 case NL80211_IFTYPE_AP:
4327 case NL80211_IFTYPE_AP_VLAN:
4328 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4329 /* ignore WME attributes if iface/sta is not capable */
4330 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4331 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4332 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4333
bdd90d5e 4334 /* TDLS peers cannot be added */
3d124ea2
JM		 4335 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4336 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4337 return -EINVAL;
bdd90d5e
JB		 4338 /* but don't bother the driver with it */
4339 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4340
d582cffb
JB		 4341 /* allow authenticated/associated only if driver handles it */
4342 if (!(rdev->wiphy.features &
4343 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4344 params.sta_flags_mask &
4345 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4346 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4347 return -EINVAL;
4348
bdd90d5e
JB		 4349 /* must be last in here for error handling */
4350 params.vlan = get_vlan(info, rdev);
4351 if (IS_ERR(params.vlan))
4352 return PTR_ERR(params.vlan);
4353 break;
4354 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4355 /* ignore uAPSD data */
4356 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4357
d582cffb
JB		 4358 /* associated is disallowed */
4359 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4360 return -EINVAL;
bdd90d5e 4361 /* TDLS peers cannot be added */
3d124ea2
JM		 4362 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4363 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4364 return -EINVAL;
4365 break;
4366 case NL80211_IFTYPE_STATION:
93d08f0b 4367 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4368 /* ignore uAPSD data */
4369 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4370
77ee7c89
JB		 4371 /* these are disallowed */
4372 if (params.sta_flags_mask &
4373 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4374 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4375 return -EINVAL;
bdd90d5e
JB		 4376 /* Only TDLS peers can be added */
4377 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4378 return -EINVAL;
4379 /* Can only add if TDLS ... */
4380 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4381 return -EOPNOTSUPP;
4382 /* ... with external setup is supported */
4383 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4384 return -EOPNOTSUPP;
77ee7c89
JB		 4385 /*
4386 * Older wpa_supplicant versions always mark the TDLS peer
4387 * as authorized, but it shouldn't yet be.
4388 */
4389 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4390 break;
4391 default:
4392 return -EOPNOTSUPP;
c75786c9
EP		 4393 }
4394
bdd90d5e 4395 /* be aware of params.vlan when changing code here */
5727ef1b 4396
e35e4d28 4397 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4398
5727ef1b
JB		 4399 if (params.vlan)
4400 dev_put(params.vlan);
5727ef1b
JB		 4401 return err;
4402}
4403
4404static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4405{
4c476991
JB		 4406 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4407 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4408 struct station_del_parameters params;
4409
4410 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4411
4412 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4413 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4414
e80cf853 4415 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4416 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4417 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4418 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4419 return -EINVAL;
5727ef1b 4420
4c476991
JB		 4421 if (!rdev->ops->del_station)
4422 return -EOPNOTSUPP;
3b85875a 4423
98856866
JM		 4424 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4425 params.subtype =
4426 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4427 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4428 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4429 return -EINVAL;
4430 } else {
4431 /* Default to Deauthentication frame */
4432 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4433 }
4434
4435 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4436 params.reason_code =
4437 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4438 if (params.reason_code == 0)
4439 return -EINVAL; /* 0 is reserved */
4440 } else {
4441 /* Default to reason code 2 */
4442 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4443 }
4444
89c771e5 4445 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4446}
4447
15e47304 4448static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4449 int flags, struct net_device *dev,
4450 u8 *dst, u8 *next_hop,
4451 struct mpath_info *pinfo)
4452{
4453 void *hdr;
4454 struct nlattr *pinfoattr;
4455
1ef4c850 4456 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4457 if (!hdr)
4458 return -1;
4459
9360ffd1
DM		 4460 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4461 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4462 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4463 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4464 goto nla_put_failure;
f5ea9120 4465
2ec600d6
LCC		 4466 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4467 if (!pinfoattr)
4468 goto nla_put_failure;
9360ffd1
DM		 4469 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4470 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4471 pinfo->frame_qlen))
4472 goto nla_put_failure;
4473 if (((pinfo->filled & MPATH_INFO_SN) &&
4474 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4475 ((pinfo->filled & MPATH_INFO_METRIC) &&
4476 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4477 pinfo->metric)) ||
4478 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4479 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4480 pinfo->exptime)) ||
4481 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4482 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4483 pinfo->flags)) ||
4484 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4485 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4486 pinfo->discovery_timeout)) ||
4487 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4488 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4489 pinfo->discovery_retries)))
4490 goto nla_put_failure;
2ec600d6
LCC		 4491
4492 nla_nest_end(msg, pinfoattr);
4493
4494 return genlmsg_end(msg, hdr);
4495
4496 nla_put_failure:
bc3ed28c
TG		 4497 genlmsg_cancel(msg, hdr);
4498 return -EMSGSIZE;
2ec600d6
LCC		 4499}
4500
4501static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4502 struct netlink_callback *cb)
2ec600d6 4503{
2ec600d6 4504 struct mpath_info pinfo;
1b8ec87a 4505 struct cfg80211_registered_device *rdev;
97990a06 4506 struct wireless_dev *wdev;
2ec600d6
LCC		 4507 u8 dst[ETH_ALEN];
4508 u8 next_hop[ETH_ALEN];
97990a06 4509 int path_idx = cb->args[2];
2ec600d6 4510 int err;
2ec600d6 4511
1b8ec87a 4512 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4513 if (err)
4514 return err;
bba95fef 4515
1b8ec87a 4516 if (!rdev->ops->dump_mpath) {
eec60b03 4517 err = -EOPNOTSUPP;
bba95fef
JB		 4518 goto out_err;
4519 }
4520
97990a06 4521 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4522 err = -EOPNOTSUPP;
0448b5fc 4523 goto out_err;
eec60b03
JM		 4524 }
4525
bba95fef 4526 while (1) {
1b8ec87a 4527 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4528 next_hop, &pinfo);
bba95fef 4529 if (err == -ENOENT)
2ec600d6 4530 break;
bba95fef 4531 if (err)
3b85875a 4532 goto out_err;
2ec600d6 4533
15e47304 4534 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4535 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4536 wdev->netdev, dst, next_hop,
bba95fef
JB		 4537 &pinfo) < 0)
4538 goto out;
2ec600d6 4539
bba95fef 4540 path_idx++;
2ec600d6 4541 }
2ec600d6 4542
2ec600d6 4543
bba95fef 4544 out:
97990a06 4545 cb->args[2] = path_idx;
bba95fef 4546 err = skb->len;
bba95fef 4547 out_err:
1b8ec87a 4548 nl80211_finish_wdev_dump(rdev);
bba95fef 4549 return err;
2ec600d6
LCC		 4550}
4551
4552static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4553{
4c476991 4554 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4555 int err;
4c476991 4556 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4557 struct mpath_info pinfo;
4558 struct sk_buff *msg;
4559 u8 *dst = NULL;
4560 u8 next_hop[ETH_ALEN];
4561
4562 memset(&pinfo, 0, sizeof(pinfo));
4563
4564 if (!info->attrs[NL80211_ATTR_MAC])
4565 return -EINVAL;
4566
4567 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4568
4c476991
JB		 4569 if (!rdev->ops->get_mpath)
4570 return -EOPNOTSUPP;
2ec600d6 4571
4c476991
JB		 4572 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4573 return -EOPNOTSUPP;
eec60b03 4574
e35e4d28 4575 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4576 if (err)
4c476991 4577 return err;
2ec600d6 4578
fd2120ca 4579 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4580 if (!msg)
4c476991 4581 return -ENOMEM;
2ec600d6 4582
15e47304 4583 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4584 dev, dst, next_hop, &pinfo) < 0) {
4585 nlmsg_free(msg);
4586 return -ENOBUFS;
4587 }
3b85875a 4588
4c476991 4589 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4590}
4591
4592static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4593{
4c476991
JB		 4594 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4595 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4596 u8 *dst = NULL;
4597 u8 *next_hop = NULL;
4598
4599 if (!info->attrs[NL80211_ATTR_MAC])
4600 return -EINVAL;
4601
4602 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4603 return -EINVAL;
4604
4605 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4606 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4607
4c476991
JB		 4608 if (!rdev->ops->change_mpath)
4609 return -EOPNOTSUPP;
35a8efe1 4610
4c476991
JB		 4611 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4612 return -EOPNOTSUPP;
2ec600d6 4613
e35e4d28 4614 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4615}
4c476991 4616
2ec600d6
LCC		 4617static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4618{
4c476991
JB		 4619 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4620 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4621 u8 *dst = NULL;
4622 u8 *next_hop = NULL;
4623
4624 if (!info->attrs[NL80211_ATTR_MAC])
4625 return -EINVAL;
4626
4627 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4628 return -EINVAL;
4629
4630 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4631 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4632
4c476991
JB		 4633 if (!rdev->ops->add_mpath)
4634 return -EOPNOTSUPP;
35a8efe1 4635
4c476991
JB		 4636 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4637 return -EOPNOTSUPP;
2ec600d6 4638
e35e4d28 4639 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4640}
4641
4642static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4643{
4c476991
JB		 4644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4645 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4646 u8 *dst = NULL;
4647
4648 if (info->attrs[NL80211_ATTR_MAC])
4649 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4650
4c476991
JB		 4651 if (!rdev->ops->del_mpath)
4652 return -EOPNOTSUPP;
3b85875a 4653
e35e4d28 4654 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4655}
4656
66be7d2b
HR		 4657static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4658{
4659 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4660 int err;
4661 struct net_device *dev = info->user_ptr[1];
4662 struct mpath_info pinfo;
4663 struct sk_buff *msg;
4664 u8 *dst = NULL;
4665 u8 mpp[ETH_ALEN];
4666
4667 memset(&pinfo, 0, sizeof(pinfo));
4668
4669 if (!info->attrs[NL80211_ATTR_MAC])
4670 return -EINVAL;
4671
4672 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4673
4674 if (!rdev->ops->get_mpp)
4675 return -EOPNOTSUPP;
4676
4677 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4678 return -EOPNOTSUPP;
4679
4680 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4681 if (err)
4682 return err;
4683
4684 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4685 if (!msg)
4686 return -ENOMEM;
4687
4688 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4689 dev, dst, mpp, &pinfo) < 0) {
4690 nlmsg_free(msg);
4691 return -ENOBUFS;
4692 }
4693
4694 return genlmsg_reply(msg, info);
4695}
4696
4697static int nl80211_dump_mpp(struct sk_buff *skb,
4698 struct netlink_callback *cb)
4699{
4700 struct mpath_info pinfo;
4701 struct cfg80211_registered_device *rdev;
4702 struct wireless_dev *wdev;
4703 u8 dst[ETH_ALEN];
4704 u8 mpp[ETH_ALEN];
4705 int path_idx = cb->args[2];
4706 int err;
4707
4708 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4709 if (err)
4710 return err;
4711
4712 if (!rdev->ops->dump_mpp) {
4713 err = -EOPNOTSUPP;
4714 goto out_err;
4715 }
4716
4717 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4718 err = -EOPNOTSUPP;
4719 goto out_err;
4720 }
4721
4722 while (1) {
4723 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4724 mpp, &pinfo);
4725 if (err == -ENOENT)
4726 break;
4727 if (err)
4728 goto out_err;
4729
4730 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4731 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4732 wdev->netdev, dst, mpp,
4733 &pinfo) < 0)
4734 goto out;
4735
4736 path_idx++;
4737 }
4738
4739 out:
4740 cb->args[2] = path_idx;
4741 err = skb->len;
4742 out_err:
4743 nl80211_finish_wdev_dump(rdev);
4744 return err;
4745}
4746
9f1ba906
JM		 4747static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4748{
4c476991
JB		 4749 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4750 struct net_device *dev = info->user_ptr[1];
c56589ed 4751 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4752 struct bss_parameters params;
c56589ed 4753 int err;
9f1ba906
JM		 4754
4755 memset(&params, 0, sizeof(params));
4756 /* default to not changing parameters */
4757 params.use_cts_prot = -1;
4758 params.use_short_preamble = -1;
4759 params.use_short_slot_time = -1;
fd8aaaf3 4760 params.ap_isolate = -1;
50b12f59 4761 params.ht_opmode = -1;
53cabad7
JB		 4762 params.p2p_ctwindow = -1;
4763 params.p2p_opp_ps = -1;
9f1ba906
JM		 4764
4765 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4766 params.use_cts_prot =
4767 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4768 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4769 params.use_short_preamble =
4770 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4771 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4772 params.use_short_slot_time =
4773 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4774 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4775 params.basic_rates =
4776 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4777 params.basic_rates_len =
4778 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4779 }
fd8aaaf3
FF		 4780 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4781 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4782 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4783 params.ht_opmode =
4784 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4785
53cabad7
JB		 4786 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4787 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4788 return -EINVAL;
4789 params.p2p_ctwindow =
4790 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4791 if (params.p2p_ctwindow < 0)
4792 return -EINVAL;
4793 if (params.p2p_ctwindow != 0 &&
4794 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4795 return -EINVAL;
4796 }
4797
4798 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4799 u8 tmp;
4800
4801 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4802 return -EINVAL;
4803 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4804 if (tmp > 1)
4805 return -EINVAL;
4806 params.p2p_opp_ps = tmp;
4807 if (params.p2p_opp_ps &&
4808 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4809 return -EINVAL;
4810 }
4811
4c476991
JB		 4812 if (!rdev->ops->change_bss)
4813 return -EOPNOTSUPP;
9f1ba906 4814
074ac8df 4815 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4816 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4817 return -EOPNOTSUPP;
3b85875a 4818
c56589ed
SW		 4819 wdev_lock(wdev);
4820 err = rdev_change_bss(rdev, dev, &params);
4821 wdev_unlock(wdev);
4822
4823 return err;
9f1ba906
JM		 4824}
4825
b54452b0 4826static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4827 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4828 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4829 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4830 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4831 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4832 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4833 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4834};
4835
4836static int parse_reg_rule(struct nlattr *tb[],
4837 struct ieee80211_reg_rule *reg_rule)
4838{
4839 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4840 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4841
4842 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4843 return -EINVAL;
4844 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4845 return -EINVAL;
4846 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4847 return -EINVAL;
b0dfd2ea
JD		 4848 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4849 return -EINVAL;
b2e1b302
LR		 4850 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4851 return -EINVAL;
4852
4853 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4854
4855 freq_range->start_freq_khz =
4856 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4857 freq_range->end_freq_khz =
4858 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4859 freq_range->max_bandwidth_khz =
4860 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4861
4862 power_rule->max_eirp =
4863 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4864
4865 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4866 power_rule->max_antenna_gain =
4867 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4868
089027e5
JD		 4869 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4870 reg_rule->dfs_cac_ms =
4871 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4872
b2e1b302
LR		 4873 return 0;
4874}
4875
4876static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4877{
b2e1b302 4878 char *data = NULL;
57b5ce07 4879 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4880
80778f18
LR		 4881 /*
4882 * You should only get this when cfg80211 hasn't yet initialized
4883 * completely when built-in to the kernel right between the time
4884 * window between nl80211_init() and regulatory_init(), if that is
4885 * even possible.
4886 */
458f4f9e 4887 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4888 return -EINPROGRESS;
80778f18 4889
57b5ce07
LR		 4890 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4891 user_reg_hint_type =
4892 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4893 else
4894 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4895
4896 switch (user_reg_hint_type) {
4897 case NL80211_USER_REG_HINT_USER:
4898 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4899 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4900 return -EINVAL;
4901
4902 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4903 return regulatory_hint_user(data, user_reg_hint_type);
4904 case NL80211_USER_REG_HINT_INDOOR:
4905 return regulatory_hint_indoor_user();
57b5ce07
LR		 4906 default:
4907 return -EINVAL;
4908 }
b2e1b302
LR		 4909}
4910
24bdd9f4 4911static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4912 struct genl_info *info)
93da9cc1 4913{
4c476991 4914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4915 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4916 struct wireless_dev *wdev = dev->ieee80211_ptr;
4917 struct mesh_config cur_params;
4918 int err = 0;
93da9cc1 4919 void *hdr;
4920 struct nlattr *pinfoattr;
4921 struct sk_buff *msg;
4922
29cbe68c
JB		 4923 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4924 return -EOPNOTSUPP;
4925
24bdd9f4 4926 if (!rdev->ops->get_mesh_config)
4c476991 4927 return -EOPNOTSUPP;
f3f92586 4928
29cbe68c
JB		 4929 wdev_lock(wdev);
4930 /* If not connected, get default parameters */
4931 if (!wdev->mesh_id_len)
4932 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4933 else
e35e4d28 4934 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4935 wdev_unlock(wdev);
4936
93da9cc1 4937 if (err)
4c476991 4938 return err;
93da9cc1 4939
4940 /* Draw up a netlink message to send back */
fd2120ca 4941 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4942 if (!msg)
4943 return -ENOMEM;
15e47304 4944 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4945 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4946 if (!hdr)
efe1cf0c 4947 goto out;
24bdd9f4 4948 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4949 if (!pinfoattr)
4950 goto nla_put_failure;
9360ffd1
DM		 4951 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4952 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4953 cur_params.dot11MeshRetryTimeout) ||
4954 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4955 cur_params.dot11MeshConfirmTimeout) ||
4956 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4957 cur_params.dot11MeshHoldingTimeout) ||
4958 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4959 cur_params.dot11MeshMaxPeerLinks) ||
4960 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4961 cur_params.dot11MeshMaxRetries) ||
4962 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4963 cur_params.dot11MeshTTL) ||
4964 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4965 cur_params.element_ttl) ||
4966 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4967 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4968 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4969 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4970 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4971 cur_params.dot11MeshHWMPmaxPREQretries) ||
4972 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4973 cur_params.path_refresh_time) ||
4974 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4975 cur_params.min_discovery_timeout) ||
4976 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4977 cur_params.dot11MeshHWMPactivePathTimeout) ||
4978 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4979 cur_params.dot11MeshHWMPpreqMinInterval) ||
4980 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4981 cur_params.dot11MeshHWMPperrMinInterval) ||
4982 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4983 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4984 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4985 cur_params.dot11MeshHWMPRootMode) ||
4986 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4987 cur_params.dot11MeshHWMPRannInterval) ||
4988 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4989 cur_params.dot11MeshGateAnnouncementProtocol) ||
4990 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4991 cur_params.dot11MeshForwarding) ||
4992 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4993 cur_params.rssi_threshold) ||
4994 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4995 cur_params.ht_opmode) ||
4996 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4997 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4998 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4999 cur_params.dot11MeshHWMProotInterval) ||
5000 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5001 cur_params.dot11MeshHWMPconfirmationInterval) ||
5002 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5003 cur_params.power_mode) ||
5004 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5005 cur_params.dot11MeshAwakeWindowDuration) ||
5006 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5007 cur_params.plink_timeout))
9360ffd1 5008 goto nla_put_failure;
93da9cc1 5009 nla_nest_end(msg, pinfoattr);
5010 genlmsg_end(msg, hdr);
4c476991 5011 return genlmsg_reply(msg, info);
93da9cc1 5012
3b85875a 5013 nla_put_failure:
93da9cc1 5014 genlmsg_cancel(msg, hdr);
efe1cf0c 5015 out:
d080e275 5016 nlmsg_free(msg);
4c476991 5017 return -ENOBUFS;
93da9cc1 5018}
5019
b54452b0 5020static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5021 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5022 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5023 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5024 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5025 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5026 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5027 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5028 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5029 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5030 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5031 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5032 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5033 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5034 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5035 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5036 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5037 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5038 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5039 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5040 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5041 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5042 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5043 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5044 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5045 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5046 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5047 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5048 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5049};
5050
c80d545d
JC		 5051static const struct nla_policy
5052 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5053 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5054 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5055 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5056 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5057 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5058 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5059 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5060 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5061 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5062};
5063
24bdd9f4 5064static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5065 struct mesh_config *cfg,
5066 u32 *mask_out)
93da9cc1 5067{
93da9cc1 5068 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5069 u32 mask = 0;
93da9cc1 5070
ea54fba2
MP		 5071#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5072do { \
5073 if (tb[attr]) { \
5074 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5075 return -EINVAL; \
5076 cfg->param = fn(tb[attr]); \
5077 mask |= (1 << (attr - 1)); \
5078 } \
5079} while (0)
bd90fdcc
JB		 5080
5081
24bdd9f4 5082 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5083 return -EINVAL;
5084 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5085 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5086 nl80211_meshconf_params_policy))
93da9cc1 5087 return -EINVAL;
5088
93da9cc1 5089 /* This makes sure that there aren't more than 32 mesh config
5090 * parameters (otherwise our bitfield scheme would not work.) */
5091 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5092
5093 /* Fill in the params struct */
ea54fba2 5094 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5095 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5096 nla_get_u16);
ea54fba2 5097 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5098 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5099 nla_get_u16);
ea54fba2 5100 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5101 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5102 nla_get_u16);
ea54fba2 5103 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5104 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5105 nla_get_u16);
ea54fba2 5106 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5107 mask, NL80211_MESHCONF_MAX_RETRIES,
5108 nla_get_u8);
ea54fba2 5109 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5110 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5111 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5112 mask, NL80211_MESHCONF_ELEMENT_TTL,
5113 nla_get_u8);
ea54fba2 5114 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5115 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5116 nla_get_u8);
ea54fba2
MP		 5117 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5118 1, 255, mask,
a4f606ea
CYY		 5119 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5120 nla_get_u32);
ea54fba2 5121 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5122 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5123 nla_get_u8);
ea54fba2 5124 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5125 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5126 nla_get_u32);
ea54fba2 5127 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5128 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5129 nla_get_u16);
ea54fba2
MP		 5130 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5131 1, 65535, mask,
a4f606ea
CYY		 5132 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5133 nla_get_u32);
93da9cc1 5134 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5135 1, 65535, mask,
5136 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5137 nla_get_u16);
dca7e943 5138 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5139 1, 65535, mask,
5140 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5141 nla_get_u16);
93da9cc1 5142 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5143 dot11MeshHWMPnetDiameterTraversalTime,
5144 1, 65535, mask,
a4f606ea
CYY		 5145 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5146 nla_get_u16);
ea54fba2
MP		 5147 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5148 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5149 nla_get_u8);
5150 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5151 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5152 nla_get_u16);
63c5723b 5153 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5154 dot11MeshGateAnnouncementProtocol, 0, 1,
5155 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5156 nla_get_u8);
ea54fba2 5157 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5158 mask, NL80211_MESHCONF_FORWARDING,
5159 nla_get_u8);
83374fe9 5160 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5161 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5162 nla_get_s32);
ea54fba2 5163 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5164 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5165 nla_get_u16);
5166 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5167 1, 65535, mask,
ac1073a6
CYY		 5168 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5169 nla_get_u32);
ea54fba2 5170 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5171 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5172 nla_get_u16);
5173 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5174 dot11MeshHWMPconfirmationInterval,
5175 1, 65535, mask,
728b19e5 5176 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5177 nla_get_u16);
3b1c5a53
MP		 5178 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5179 NL80211_MESH_POWER_ACTIVE,
5180 NL80211_MESH_POWER_MAX,
5181 mask, NL80211_MESHCONF_POWER_MODE,
5182 nla_get_u32);
5183 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5184 0, 65535, mask,
5185 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5186 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5187 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5188 nla_get_u32);
bd90fdcc
JB		 5189 if (mask_out)
5190 *mask_out = mask;
c80d545d 5191
bd90fdcc
JB		 5192 return 0;
5193
5194#undef FILL_IN_MESH_PARAM_IF_SET
5195}
5196
c80d545d
JC		 5197static int nl80211_parse_mesh_setup(struct genl_info *info,
5198 struct mesh_setup *setup)
5199{
bb2798d4 5200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5201 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5202
5203 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5204 return -EINVAL;
5205 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5206 info->attrs[NL80211_ATTR_MESH_SETUP],
5207 nl80211_mesh_setup_params_policy))
5208 return -EINVAL;
5209
d299a1f2
JC		 5210 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5211 setup->sync_method =
5212 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5213 IEEE80211_SYNC_METHOD_VENDOR :
5214 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5215
c80d545d
JC		 5216 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5217 setup->path_sel_proto =
5218 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5219 IEEE80211_PATH_PROTOCOL_VENDOR :
5220 IEEE80211_PATH_PROTOCOL_HWMP;
5221
5222 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5223 setup->path_metric =
5224 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5225 IEEE80211_PATH_METRIC_VENDOR :
5226 IEEE80211_PATH_METRIC_AIRTIME;
5227
581a8b0f
JC		 5228
5229 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5230 struct nlattr *ieattr =
581a8b0f 5231 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5232 if (!is_valid_ie_attr(ieattr))
5233 return -EINVAL;
581a8b0f
JC		 5234 setup->ie = nla_data(ieattr);
5235 setup->ie_len = nla_len(ieattr);
c80d545d 5236 }
bb2798d4
TP		 5237 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5238 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5239 return -EINVAL;
5240 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5241 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5242 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5243 if (setup->is_secure)
5244 setup->user_mpm = true;
c80d545d 5245
6e16d90b
CT		 5246 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5247 if (!setup->user_mpm)
5248 return -EINVAL;
5249 setup->auth_id =
5250 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5251 }
5252
c80d545d
JC		 5253 return 0;
5254}
5255
24bdd9f4 5256static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5257 struct genl_info *info)
bd90fdcc
JB		 5258{
5259 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5260 struct net_device *dev = info->user_ptr[1];
29cbe68c 5261 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5262 struct mesh_config cfg;
5263 u32 mask;
5264 int err;
5265
29cbe68c
JB		 5266 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5267 return -EOPNOTSUPP;
5268
24bdd9f4 5269 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5270 return -EOPNOTSUPP;
5271
24bdd9f4 5272 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5273 if (err)
5274 return err;
5275
29cbe68c
JB		 5276 wdev_lock(wdev);
5277 if (!wdev->mesh_id_len)
5278 err = -ENOLINK;
5279
5280 if (!err)
e35e4d28 5281 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5282
5283 wdev_unlock(wdev);
5284
5285 return err;
93da9cc1 5286}
5287
f130347c
LR		 5288static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5289{
458f4f9e 5290 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5291 struct sk_buff *msg;
5292 void *hdr = NULL;
5293 struct nlattr *nl_reg_rules;
5294 unsigned int i;
f130347c
LR		 5295
5296 if (!cfg80211_regdomain)
5fe231e8 5297 return -EINVAL;
f130347c 5298
fd2120ca 5299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5300 if (!msg)
5301 return -ENOBUFS;
f130347c 5302
15e47304 5303 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5304 NL80211_CMD_GET_REG);
5305 if (!hdr)
efe1cf0c 5306 goto put_failure;
f130347c 5307
57b5ce07
LR		 5308 if (reg_last_request_cell_base() &&
5309 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5310 NL80211_USER_REG_HINT_CELL_BASE))
5311 goto nla_put_failure;
5312
458f4f9e
JB		 5313 rcu_read_lock();
5314 regdom = rcu_dereference(cfg80211_regdomain);
5315
5316 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5317 (regdom->dfs_region &&
5318 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5319 goto nla_put_failure_rcu;
5320
f130347c
LR		 5321 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5322 if (!nl_reg_rules)
458f4f9e 5323 goto nla_put_failure_rcu;
f130347c 5324
458f4f9e 5325 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5326 struct nlattr *nl_reg_rule;
5327 const struct ieee80211_reg_rule *reg_rule;
5328 const struct ieee80211_freq_range *freq_range;
5329 const struct ieee80211_power_rule *power_rule;
97524820 5330 unsigned int max_bandwidth_khz;
f130347c 5331
458f4f9e 5332 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5333 freq_range = &reg_rule->freq_range;
5334 power_rule = &reg_rule->power_rule;
5335
5336 nl_reg_rule = nla_nest_start(msg, i);
5337 if (!nl_reg_rule)
458f4f9e 5338 goto nla_put_failure_rcu;
f130347c 5339
97524820
JD		 5340 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5341 if (!max_bandwidth_khz)
5342 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5343 reg_rule);
5344
9360ffd1
DM		 5345 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5346 reg_rule->flags) ||
5347 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5348 freq_range->start_freq_khz) ||
5349 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5350 freq_range->end_freq_khz) ||
5351 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5352 max_bandwidth_khz) ||
9360ffd1
DM		 5353 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5354 power_rule->max_antenna_gain) ||
5355 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5356 power_rule->max_eirp) ||
5357 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5358 reg_rule->dfs_cac_ms))
458f4f9e 5359 goto nla_put_failure_rcu;
f130347c
LR		 5360
5361 nla_nest_end(msg, nl_reg_rule);
5362 }
458f4f9e 5363 rcu_read_unlock();
f130347c
LR		 5364
5365 nla_nest_end(msg, nl_reg_rules);
5366
5367 genlmsg_end(msg, hdr);
5fe231e8 5368 return genlmsg_reply(msg, info);
f130347c 5369
458f4f9e
JB		 5370nla_put_failure_rcu:
5371 rcu_read_unlock();
f130347c
LR		 5372nla_put_failure:
5373 genlmsg_cancel(msg, hdr);
efe1cf0c 5374put_failure:
d080e275 5375 nlmsg_free(msg);
5fe231e8 5376 return -EMSGSIZE;
f130347c
LR		 5377}
5378
b2e1b302
LR		 5379static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5380{
5381 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5382 struct nlattr *nl_reg_rule;
5383 char *alpha2 = NULL;
5384 int rem_reg_rules = 0, r = 0;
5385 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5386 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5387 struct ieee80211_regdomain *rd = NULL;
5388
5389 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5390 return -EINVAL;
5391
5392 if (!info->attrs[NL80211_ATTR_REG_RULES])
5393 return -EINVAL;
5394
5395 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5396
8b60b078
LR		 5397 if (info->attrs[NL80211_ATTR_DFS_REGION])
5398 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5399
b2e1b302 5400 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5401 rem_reg_rules) {
b2e1b302
LR		 5402 num_rules++;
5403 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5404 return -EINVAL;
b2e1b302
LR		 5405 }
5406
e438768f
LR		 5407 if (!reg_is_valid_request(alpha2))
5408 return -EINVAL;
5409
b2e1b302 5410 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5411 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5412
5413 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5414 if (!rd)
5415 return -ENOMEM;
b2e1b302
LR		 5416
5417 rd->n_reg_rules = num_rules;
5418 rd->alpha2[0] = alpha2[0];
5419 rd->alpha2[1] = alpha2[1];
5420
8b60b078
LR		 5421 /*
5422 * Disable DFS master mode if the DFS region was
5423 * not supported or known on this kernel.
5424 */
5425 if (reg_supported_dfs_region(dfs_region))
5426 rd->dfs_region = dfs_region;
5427
b2e1b302 5428 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5429 rem_reg_rules) {
ae811e21
JB		 5430 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5431 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5432 reg_rule_policy);
5433 if (r)
5434 goto bad_reg;
b2e1b302
LR		 5435 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5436 if (r)
5437 goto bad_reg;
5438
5439 rule_idx++;
5440
d0e18f83
LR		 5441 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5442 r = -EINVAL;
b2e1b302 5443 goto bad_reg;
d0e18f83 5444 }
b2e1b302
LR		 5445 }
5446
b2e1b302 5447 r = set_regdom(rd);
6913b49a 5448 /* set_regdom took ownership */
1a919318 5449 rd = NULL;
b2e1b302 5450
d2372b31 5451 bad_reg:
b2e1b302 5452 kfree(rd);
d0e18f83 5453 return r;
b2e1b302
LR		 5454}
5455
83f5e2cf
JB		 5456static int validate_scan_freqs(struct nlattr *freqs)
5457{
5458 struct nlattr *attr1, *attr2;
5459 int n_channels = 0, tmp1, tmp2;
5460
5461 nla_for_each_nested(attr1, freqs, tmp1) {
5462 n_channels++;
5463 /*
5464 * Some hardware has a limited channel list for
5465 * scanning, and it is pretty much nonsensical
5466 * to scan for a channel twice, so disallow that
5467 * and don't require drivers to check that the
5468 * channel list they get isn't longer than what
5469 * they can scan, as long as they can scan all
5470 * the channels they registered at once.
5471 */
5472 nla_for_each_nested(attr2, freqs, tmp2)
5473 if (attr1 != attr2 &&
5474 nla_get_u32(attr1) == nla_get_u32(attr2))
5475 return 0;
5476 }
5477
5478 return n_channels;
5479}
5480
2a519311
JB		 5481static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5482{
4c476991 5483 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5484 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5485 struct cfg80211_scan_request *request;
2a519311
JB		 5486 struct nlattr *attr;
5487 struct wiphy *wiphy;
83f5e2cf 5488 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5489 size_t ie_len;
2a519311 5490
f4a11bb0
JB		 5491 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5492 return -EINVAL;
5493
79c97e97 5494 wiphy = &rdev->wiphy;
2a519311 5495
4c476991
JB		 5496 if (!rdev->ops->scan)
5497 return -EOPNOTSUPP;
2a519311 5498
f9d15d16 5499 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5500 err = -EBUSY;
5501 goto unlock;
5502 }
2a519311
JB		 5503
5504 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5505 n_channels = validate_scan_freqs(
5506 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5507 if (!n_channels) {
5508 err = -EINVAL;
5509 goto unlock;
5510 }
2a519311 5511 } else {
bdfbec2d 5512 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5513 }
5514
5515 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5516 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5517 n_ssids++;
5518
f9f47529
JB		 5519 if (n_ssids > wiphy->max_scan_ssids) {
5520 err = -EINVAL;
5521 goto unlock;
5522 }
2a519311 5523
70692ad2
JM		 5524 if (info->attrs[NL80211_ATTR_IE])
5525 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5526 else
5527 ie_len = 0;
5528
f9f47529
JB		 5529 if (ie_len > wiphy->max_scan_ie_len) {
5530 err = -EINVAL;
5531 goto unlock;
5532 }
18a83659 5533
2a519311 5534 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5535 + sizeof(*request->ssids) * n_ssids
5536 + sizeof(*request->channels) * n_channels
70692ad2 5537 + ie_len, GFP_KERNEL);
f9f47529
JB		 5538 if (!request) {
5539 err = -ENOMEM;
5540 goto unlock;
5541 }
2a519311 5542
2a519311 5543 if (n_ssids)
5ba63533 5544 request->ssids = (void *)&request->channels[n_channels];
2a519311 5545 request->n_ssids = n_ssids;
70692ad2
JM		 5546 if (ie_len) {
5547 if (request->ssids)
5548 request->ie = (void *)(request->ssids + n_ssids);
5549 else
5550 request->ie = (void *)(request->channels + n_channels);
5551 }
2a519311 5552
584991dc 5553 i = 0;
2a519311
JB		 5554 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5555 /* user specified, bail out if channel not found */
2a519311 5556 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5557 struct ieee80211_channel *chan;
5558
5559 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5560
5561 if (!chan) {
2a519311
JB		 5562 err = -EINVAL;
5563 goto out_free;
5564 }
584991dc
JB		 5565
5566 /* ignore disabled channels */
5567 if (chan->flags & IEEE80211_CHAN_DISABLED)
5568 continue;
5569
5570 request->channels[i] = chan;
2a519311
JB		 5571 i++;
5572 }
5573 } else {
34850ab2
JB		 5574 enum ieee80211_band band;
5575
2a519311 5576 /* all channels */
2a519311
JB		 5577 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5578 int j;
5579 if (!wiphy->bands[band])
5580 continue;
5581 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5582 struct ieee80211_channel *chan;
5583
5584 chan = &wiphy->bands[band]->channels[j];
5585
5586 if (chan->flags & IEEE80211_CHAN_DISABLED)
5587 continue;
5588
5589 request->channels[i] = chan;
2a519311
JB		 5590 i++;
5591 }
5592 }
5593 }
5594
584991dc
JB		 5595 if (!i) {
5596 err = -EINVAL;
5597 goto out_free;
5598 }
5599
5600 request->n_channels = i;
5601
2a519311
JB		 5602 i = 0;
5603 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5604 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5605 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5606 err = -EINVAL;
5607 goto out_free;
5608 }
57a27e1d 5609 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5610 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5611 i++;
5612 }
5613 }
5614
70692ad2
JM		 5615 if (info->attrs[NL80211_ATTR_IE]) {
5616 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5617 memcpy((void *)request->ie,
5618 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5619 request->ie_len);
5620 }
5621
34850ab2 5622 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5623 if (wiphy->bands[i])
5624 request->rates[i] =
5625 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5626
5627 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5628 nla_for_each_nested(attr,
5629 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5630 tmp) {
5631 enum ieee80211_band band = nla_type(attr);
5632
84404623 5633 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5634 err = -EINVAL;
5635 goto out_free;
5636 }
1b09cd82
FF		 5637
5638 if (!wiphy->bands[band])
5639 continue;
5640
34850ab2
JB		 5641 err = ieee80211_get_ratemask(wiphy->bands[band],
5642 nla_data(attr),
5643 nla_len(attr),
5644 &request->rates[band]);
5645 if (err)
5646 goto out_free;
5647 }
5648 }
5649
46856bbf 5650 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5651 request->flags = nla_get_u32(
5652 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5653 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5654 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5655 err = -EOPNOTSUPP;
5656 goto out_free;
5657 }
5658 }
ed473771 5659
e9f935e3
RM		 5660 request->no_cck =
5661 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5662
fd014284 5663 request->wdev = wdev;
79c97e97 5664 request->wiphy = &rdev->wiphy;
15d6030b 5665 request->scan_start = jiffies;
2a519311 5666
79c97e97 5667 rdev->scan_req = request;
e35e4d28 5668 err = rdev_scan(rdev, request);
2a519311 5669
463d0183 5670 if (!err) {
fd014284
JB		 5671 nl80211_send_scan_start(rdev, wdev);
5672 if (wdev->netdev)
5673 dev_hold(wdev->netdev);
4c476991 5674 } else {
2a519311 5675 out_free:
79c97e97 5676 rdev->scan_req = NULL;
2a519311
JB		 5677 kfree(request);
5678 }
3b85875a 5679
f9f47529 5680 unlock:
2a519311
JB		 5681 return err;
5682}
5683
256da02d
LC		 5684static struct cfg80211_sched_scan_request *
5685nl80211_parse_sched_scan(struct wiphy *wiphy,
5686 struct nlattr **attrs)
807f8a8c
LC		 5687{
5688 struct cfg80211_sched_scan_request *request;
807f8a8c 5689 struct nlattr *attr;
a1f1c21c 5690 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5691 u32 interval;
807f8a8c
LC		 5692 enum ieee80211_band band;
5693 size_t ie_len;
a1f1c21c 5694 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5695 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5696
256da02d
LC		 5697 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5698 return ERR_PTR(-EINVAL);
807f8a8c 5699
256da02d
LC		 5700 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5701 return ERR_PTR(-EINVAL);
bbe6ad6d 5702
256da02d 5703 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5704 if (interval == 0)
256da02d 5705 return ERR_PTR(-EINVAL);
807f8a8c 5706
256da02d 5707 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5708 n_channels = validate_scan_freqs(
256da02d 5709 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5710 if (!n_channels)
256da02d 5711 return ERR_PTR(-EINVAL);
807f8a8c 5712 } else {
bdfbec2d 5713 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5714 }
5715
256da02d
LC		 5716 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5717 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5718 tmp)
5719 n_ssids++;
5720
93b6aa69 5721 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5722 return ERR_PTR(-EINVAL);
807f8a8c 5723
ea73cbce
JB		 5724 /*
5725 * First, count the number of 'real' matchsets. Due to an issue with
5726 * the old implementation, matchsets containing only the RSSI attribute
5727 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5728 * RSSI for all matchsets, rather than their own matchset for reporting
5729 * all APs with a strong RSSI. This is needed to be compatible with
5730 * older userspace that treated a matchset with only the RSSI as the
5731 * global RSSI for all other matchsets - if there are other matchsets.
5732 */
256da02d 5733 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5734 nla_for_each_nested(attr,
256da02d 5735 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5736 tmp) {
5737 struct nlattr *rssi;
5738
5739 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5740 nla_data(attr), nla_len(attr),
5741 nl80211_match_policy);
5742 if (err)
256da02d 5743 return ERR_PTR(err);
ea73cbce
JB		 5744 /* add other standalone attributes here */
5745 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5746 n_match_sets++;
5747 continue;
5748 }
5749 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5750 if (rssi)
5751 default_match_rssi = nla_get_s32(rssi);
5752 }
5753 }
5754
5755 /* However, if there's no other matchset, add the RSSI one */
5756 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5757 n_match_sets = 1;
a1f1c21c
LC		 5758
5759 if (n_match_sets > wiphy->max_match_sets)
256da02d 5760 return ERR_PTR(-EINVAL);
a1f1c21c 5761
256da02d
LC		 5762 if (attrs[NL80211_ATTR_IE])
5763 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 5764 else
5765 ie_len = 0;
5766
5a865bad 5767 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 5768 return ERR_PTR(-EINVAL);
c10841ca 5769
807f8a8c 5770 request = kzalloc(sizeof(*request)
a2cd43c5 5771 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5772 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5773 + sizeof(*request->channels) * n_channels
807f8a8c 5774 + ie_len, GFP_KERNEL);
256da02d
LC		 5775 if (!request)
5776 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 5777
5778 if (n_ssids)
5779 request->ssids = (void *)&request->channels[n_channels];
5780 request->n_ssids = n_ssids;
5781 if (ie_len) {
5782 if (request->ssids)
5783 request->ie = (void *)(request->ssids + n_ssids);
5784 else
5785 request->ie = (void *)(request->channels + n_channels);
5786 }
5787
a1f1c21c
LC		 5788 if (n_match_sets) {
5789 if (request->ie)
5790 request->match_sets = (void *)(request->ie + ie_len);
5791 else if (request->ssids)
5792 request->match_sets =
5793 (void *)(request->ssids + n_ssids);
5794 else
5795 request->match_sets =
5796 (void *)(request->channels + n_channels);
5797 }
5798 request->n_match_sets = n_match_sets;
5799
807f8a8c 5800 i = 0;
256da02d 5801 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 5802 /* user specified, bail out if channel not found */
5803 nla_for_each_nested(attr,
256da02d 5804 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 5805 tmp) {
5806 struct ieee80211_channel *chan;
5807
5808 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5809
5810 if (!chan) {
5811 err = -EINVAL;
5812 goto out_free;
5813 }
5814
5815 /* ignore disabled channels */
5816 if (chan->flags & IEEE80211_CHAN_DISABLED)
5817 continue;
5818
5819 request->channels[i] = chan;
5820 i++;
5821 }
5822 } else {
5823 /* all channels */
5824 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5825 int j;
5826 if (!wiphy->bands[band])
5827 continue;
5828 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5829 struct ieee80211_channel *chan;
5830
5831 chan = &wiphy->bands[band]->channels[j];
5832
5833 if (chan->flags & IEEE80211_CHAN_DISABLED)
5834 continue;
5835
5836 request->channels[i] = chan;
5837 i++;
5838 }
5839 }
5840 }
5841
5842 if (!i) {
5843 err = -EINVAL;
5844 goto out_free;
5845 }
5846
5847 request->n_channels = i;
5848
5849 i = 0;
256da02d
LC		 5850 if (attrs[NL80211_ATTR_SCAN_SSIDS]) {
5851 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 5852 tmp) {
57a27e1d 5853 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5854 err = -EINVAL;
5855 goto out_free;
5856 }
57a27e1d 5857 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5858 memcpy(request->ssids[i].ssid, nla_data(attr),
5859 nla_len(attr));
807f8a8c
LC		 5860 i++;
5861 }
5862 }
5863
a1f1c21c 5864 i = 0;
256da02d 5865 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5866 nla_for_each_nested(attr,
256da02d 5867 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 5868 tmp) {
88e920b4 5869 struct nlattr *ssid, *rssi;
a1f1c21c 5870
ae811e21
JB		 5871 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5872 nla_data(attr), nla_len(attr),
5873 nl80211_match_policy);
5874 if (err)
5875 goto out_free;
4a4ab0d7 5876 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5877 if (ssid) {
ea73cbce
JB		 5878 if (WARN_ON(i >= n_match_sets)) {
5879 /* this indicates a programming error,
5880 * the loop above should have verified
5881 * things properly
5882 */
5883 err = -EINVAL;
5884 goto out_free;
5885 }
5886
a1f1c21c
LC		 5887 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5888 err = -EINVAL;
5889 goto out_free;
5890 }
5891 memcpy(request->match_sets[i].ssid.ssid,
5892 nla_data(ssid), nla_len(ssid));
5893 request->match_sets[i].ssid.ssid_len =
5894 nla_len(ssid);
ea73cbce
JB		 5895 /* special attribute - old implemenation w/a */
5896 request->match_sets[i].rssi_thold =
5897 default_match_rssi;
5898 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5899 if (rssi)
5900 request->match_sets[i].rssi_thold =
5901 nla_get_s32(rssi);
a1f1c21c
LC		 5902 }
5903 i++;
5904 }
ea73cbce
JB		 5905
5906 /* there was no other matchset, so the RSSI one is alone */
5907 if (i == 0)
5908 request->match_sets[0].rssi_thold = default_match_rssi;
5909
5910 request->min_rssi_thold = INT_MAX;
5911 for (i = 0; i < n_match_sets; i++)
5912 request->min_rssi_thold =
5913 min(request->match_sets[i].rssi_thold,
5914 request->min_rssi_thold);
5915 } else {
5916 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5917 }
5918
9900e484
JB		 5919 if (ie_len) {
5920 request->ie_len = ie_len;
807f8a8c 5921 memcpy((void *)request->ie,
256da02d 5922 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 5923 request->ie_len);
5924 }
5925
256da02d 5926 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 5927 request->flags = nla_get_u32(
256da02d 5928 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5929 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5930 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5931 err = -EOPNOTSUPP;
5932 goto out_free;
5933 }
5934 }
ed473771 5935
bbe6ad6d 5936 request->interval = interval;
15d6030b 5937 request->scan_start = jiffies;
807f8a8c 5938
256da02d 5939 return request;
807f8a8c
LC		 5940
5941out_free:
5942 kfree(request);
256da02d
LC		 5943 return ERR_PTR(err);
5944}
5945
5946static int nl80211_start_sched_scan(struct sk_buff *skb,
5947 struct genl_info *info)
5948{
5949 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5950 struct net_device *dev = info->user_ptr[1];
5951 int err;
5952
5953 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5954 !rdev->ops->sched_scan_start)
5955 return -EOPNOTSUPP;
5956
5957 if (rdev->sched_scan_req)
5958 return -EINPROGRESS;
5959
5960 rdev->sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy,
5961 info->attrs);
5962 err = PTR_ERR_OR_ZERO(rdev->sched_scan_req);
5963 if (err)
5964 goto out_err;
5965
5966 err = rdev_sched_scan_start(rdev, dev, rdev->sched_scan_req);
5967 if (err)
5968 goto out_free;
5969
5970 rdev->sched_scan_req->dev = dev;
5971 rdev->sched_scan_req->wiphy = &rdev->wiphy;
5972
5973 nl80211_send_sched_scan(rdev, dev,
5974 NL80211_CMD_START_SCHED_SCAN);
5975 return 0;
5976
5977out_free:
5978 kfree(rdev->sched_scan_req);
5979out_err:
5980 rdev->sched_scan_req = NULL;
807f8a8c
LC		 5981 return err;
5982}
5983
5984static int nl80211_stop_sched_scan(struct sk_buff *skb,
5985 struct genl_info *info)
5986{
5987 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5988
5989 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5990 !rdev->ops->sched_scan_stop)
5991 return -EOPNOTSUPP;
5992
5fe231e8 5993 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5994}
5995
04f39047
SW		 5996static int nl80211_start_radar_detection(struct sk_buff *skb,
5997 struct genl_info *info)
5998{
5999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6000 struct net_device *dev = info->user_ptr[1];
6001 struct wireless_dev *wdev = dev->ieee80211_ptr;
6002 struct cfg80211_chan_def chandef;
55f7435c 6003 enum nl80211_dfs_regions dfs_region;
31559f35 6004 unsigned int cac_time_ms;
04f39047
SW		 6005 int err;
6006
55f7435c
LR		 6007 dfs_region = reg_get_dfs_region(wdev->wiphy);
6008 if (dfs_region == NL80211_DFS_UNSET)
6009 return -EINVAL;
6010
04f39047
SW		 6011 err = nl80211_parse_chandef(rdev, info, &chandef);
6012 if (err)
6013 return err;
6014
ff311bc1
SW		 6015 if (netif_carrier_ok(dev))
6016 return -EBUSY;
6017
04f39047
SW		 6018 if (wdev->cac_started)
6019 return -EBUSY;
6020
2beb6dab 6021 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6022 wdev->iftype);
04f39047
SW		 6023 if (err < 0)
6024 return err;
6025
6026 if (err == 0)
6027 return -EINVAL;
6028
fe7c3a1f 6029 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6030 return -EINVAL;
6031
6032 if (!rdev->ops->start_radar_detection)
6033 return -EOPNOTSUPP;
6034
31559f35
JD		 6035 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6036 if (WARN_ON(!cac_time_ms))
6037 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6038
6039 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6040 cac_time_ms);
04f39047 6041 if (!err) {
9e0e2961 6042 wdev->chandef = chandef;
04f39047
SW		 6043 wdev->cac_started = true;
6044 wdev->cac_start_time = jiffies;
31559f35 6045 wdev->cac_time_ms = cac_time_ms;
04f39047 6046 }
04f39047
SW		 6047 return err;
6048}
6049
16ef1fe2
SW		 6050static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6051{
6052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6053 struct net_device *dev = info->user_ptr[1];
6054 struct wireless_dev *wdev = dev->ieee80211_ptr;
6055 struct cfg80211_csa_settings params;
6056 /* csa_attrs is defined static to avoid waste of stack size - this
6057 * function is called under RTNL lock, so this should not be a problem.
6058 */
6059 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6060 int err;
ee4bc9e7 6061 bool need_new_beacon = false;
9a774c78 6062 int len, i;
252e07ca 6063 u32 cs_count;
16ef1fe2
SW		 6064
6065 if (!rdev->ops->channel_switch ||
6066 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6067 return -EOPNOTSUPP;
6068
ee4bc9e7
SW		 6069 switch (dev->ieee80211_ptr->iftype) {
6070 case NL80211_IFTYPE_AP:
6071 case NL80211_IFTYPE_P2P_GO:
6072 need_new_beacon = true;
6073
6074 /* useless if AP is not running */
6075 if (!wdev->beacon_interval)
1ff79dfa 6076 return -ENOTCONN;
ee4bc9e7
SW		 6077 break;
6078 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6079 if (!wdev->ssid_len)
6080 return -ENOTCONN;
6081 break;
c6da674a 6082 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6083 if (!wdev->mesh_id_len)
6084 return -ENOTCONN;
ee4bc9e7
SW		 6085 break;
6086 default:
16ef1fe2 6087 return -EOPNOTSUPP;
ee4bc9e7 6088 }
16ef1fe2
SW		 6089
6090 memset(&params, 0, sizeof(params));
6091
6092 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6093 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6094 return -EINVAL;
6095
6096 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6097 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6098 return -EINVAL;
6099
252e07ca
LC		 6100 /* Even though the attribute is u32, the specification says
6101 * u8, so let's make sure we don't overflow.
6102 */
6103 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6104 if (cs_count > 255)
6105 return -EINVAL;
6106
6107 params.count = cs_count;
16ef1fe2 6108
ee4bc9e7
SW		 6109 if (!need_new_beacon)
6110 goto skip_beacons;
6111
16ef1fe2
SW		 6112 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6113 if (err)
6114 return err;
6115
6116 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6117 info->attrs[NL80211_ATTR_CSA_IES],
6118 nl80211_policy);
6119 if (err)
6120 return err;
6121
6122 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6123 if (err)
6124 return err;
6125
6126 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6127 return -EINVAL;
6128
9a774c78
AO		 6129 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6130 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6131 return -EINVAL;
6132
9a774c78
AO		 6133 params.n_counter_offsets_beacon = len / sizeof(u16);
6134 if (rdev->wiphy.max_num_csa_counters &&
6135 (params.n_counter_offsets_beacon >
6136 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6137 return -EINVAL;
6138
9a774c78
AO		 6139 params.counter_offsets_beacon =
6140 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6141
6142 /* sanity checks - counters should fit and be the same */
6143 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6144 u16 offset = params.counter_offsets_beacon[i];
6145
6146 if (offset >= params.beacon_csa.tail_len)
6147 return -EINVAL;
6148
6149 if (params.beacon_csa.tail[offset] != params.count)
6150 return -EINVAL;
6151 }
6152
16ef1fe2 6153 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6154 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6155 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6156 return -EINVAL;
6157
9a774c78
AO		 6158 params.n_counter_offsets_presp = len / sizeof(u16);
6159 if (rdev->wiphy.max_num_csa_counters &&
6160 (params.n_counter_offsets_beacon >
6161 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6162 return -EINVAL;
9a774c78
AO		 6163
6164 params.counter_offsets_presp =
6165 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6166
6167 /* sanity checks - counters should fit and be the same */
6168 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6169 u16 offset = params.counter_offsets_presp[i];
6170
6171 if (offset >= params.beacon_csa.probe_resp_len)
6172 return -EINVAL;
6173
6174 if (params.beacon_csa.probe_resp[offset] !=
6175 params.count)
6176 return -EINVAL;
6177 }
16ef1fe2
SW		 6178 }
6179
ee4bc9e7 6180skip_beacons:
16ef1fe2
SW		 6181 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6182 if (err)
6183 return err;
6184
174e0cd2
IP		 6185 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6186 wdev->iftype))
16ef1fe2
SW		 6187 return -EINVAL;
6188
2beb6dab
LC		 6189 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6190 &params.chandef,
6191 wdev->iftype);
6192 if (err < 0)
6193 return err;
6194
dcc6c2f5 6195 if (err > 0)
2beb6dab 6196 params.radar_required = true;
16ef1fe2 6197
16ef1fe2
SW		 6198 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6199 params.block_tx = true;
6200
c56589ed
SW		 6201 wdev_lock(wdev);
6202 err = rdev_channel_switch(rdev, dev, &params);
6203 wdev_unlock(wdev);
6204
6205 return err;
16ef1fe2
SW		 6206}
6207
9720bb3a
JB		 6208static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6209 u32 seq, int flags,
2a519311 6210 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6211 struct wireless_dev *wdev,
6212 struct cfg80211_internal_bss *intbss)
2a519311 6213{
48ab905d 6214 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6215 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6216 void *hdr;
6217 struct nlattr *bss;
48ab905d
JB		 6218
6219 ASSERT_WDEV_LOCK(wdev);
2a519311 6220
15e47304 6221 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6222 NL80211_CMD_NEW_SCAN_RESULTS);
6223 if (!hdr)
6224 return -1;
6225
9720bb3a
JB		 6226 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6227
97990a06
JB		 6228 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6229 goto nla_put_failure;
6230 if (wdev->netdev &&
9360ffd1
DM		 6231 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6232 goto nla_put_failure;
97990a06
JB		 6233 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6234 goto nla_put_failure;
2a519311
JB		 6235
6236 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6237 if (!bss)
6238 goto nla_put_failure;
9360ffd1 6239 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6240 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6241 goto nla_put_failure;
9caf0364
JB		 6242
6243 rcu_read_lock();
0e227084
JB		 6244 /* indicate whether we have probe response data or not */
6245 if (rcu_access_pointer(res->proberesp_ies) &&
6246 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6247 goto fail_unlock_rcu;
6248
6249 /* this pointer prefers to be pointed to probe response data
6250 * but is always valid
6251 */
9caf0364 6252 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6253 if (ies) {
6254 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6255 goto fail_unlock_rcu;
8cef2c9d
JB		 6256 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6257 ies->len, ies->data))
6258 goto fail_unlock_rcu;
9caf0364 6259 }
0e227084
JB		 6260
6261 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6262 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6263 if (ies && ies->from_beacon) {
6264 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6265 goto fail_unlock_rcu;
6266 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6267 ies->len, ies->data))
6268 goto fail_unlock_rcu;
9caf0364
JB		 6269 }
6270 rcu_read_unlock();
6271
9360ffd1
DM		 6272 if (res->beacon_interval &&
6273 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6274 goto nla_put_failure;
6275 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6276 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6277 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6278 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6279 jiffies_to_msecs(jiffies - intbss->ts)))
6280 goto nla_put_failure;
2a519311 6281
77965c97 6282 switch (rdev->wiphy.signal_type) {
2a519311 6283 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6284 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6285 goto nla_put_failure;
2a519311
JB		 6286 break;
6287 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6288 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6289 goto nla_put_failure;
2a519311
JB		 6290 break;
6291 default:
6292 break;
6293 }
6294
48ab905d 6295 switch (wdev->iftype) {
074ac8df 6296 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6297 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6298 if (intbss == wdev->current_bss &&
6299 nla_put_u32(msg, NL80211_BSS_STATUS,
6300 NL80211_BSS_STATUS_ASSOCIATED))
6301 goto nla_put_failure;
48ab905d
JB		 6302 break;
6303 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6304 if (intbss == wdev->current_bss &&
6305 nla_put_u32(msg, NL80211_BSS_STATUS,
6306 NL80211_BSS_STATUS_IBSS_JOINED))
6307 goto nla_put_failure;
48ab905d
JB		 6308 break;
6309 default:
6310 break;
6311 }
6312
2a519311
JB		 6313 nla_nest_end(msg, bss);
6314
6315 return genlmsg_end(msg, hdr);
6316
8cef2c9d
JB		 6317 fail_unlock_rcu:
6318 rcu_read_unlock();
2a519311
JB		 6319 nla_put_failure:
6320 genlmsg_cancel(msg, hdr);
6321 return -EMSGSIZE;
6322}
6323
97990a06 6324static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6325{
48ab905d 6326 struct cfg80211_registered_device *rdev;
2a519311 6327 struct cfg80211_internal_bss *scan;
48ab905d 6328 struct wireless_dev *wdev;
97990a06 6329 int start = cb->args[2], idx = 0;
2a519311
JB		 6330 int err;
6331
97990a06 6332 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6333 if (err)
6334 return err;
2a519311 6335
48ab905d
JB		 6336 wdev_lock(wdev);
6337 spin_lock_bh(&rdev->bss_lock);
6338 cfg80211_bss_expire(rdev);
6339
9720bb3a
JB		 6340 cb->seq = rdev->bss_generation;
6341
48ab905d 6342 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6343 if (++idx <= start)
6344 continue;
9720bb3a 6345 if (nl80211_send_bss(skb, cb,
2a519311 6346 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6347 rdev, wdev, scan) < 0) {
2a519311 6348 idx--;
67748893 6349 break;
2a519311
JB		 6350 }
6351 }
6352
48ab905d
JB		 6353 spin_unlock_bh(&rdev->bss_lock);
6354 wdev_unlock(wdev);
2a519311 6355
97990a06
JB		 6356 cb->args[2] = idx;
6357 nl80211_finish_wdev_dump(rdev);
2a519311 6358
67748893 6359 return skb->len;
2a519311
JB		 6360}
6361
15e47304 6362static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6363 int flags, struct net_device *dev,
6364 struct survey_info *survey)
6365{
6366 void *hdr;
6367 struct nlattr *infoattr;
6368
15e47304 6369 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6370 NL80211_CMD_NEW_SURVEY_RESULTS);
6371 if (!hdr)
6372 return -ENOMEM;
6373
9360ffd1
DM		 6374 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6375 goto nla_put_failure;
61fa713c
HS		 6376
6377 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6378 if (!infoattr)
6379 goto nla_put_failure;
6380
9360ffd1
DM		 6381 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6382 survey->channel->center_freq))
6383 goto nla_put_failure;
6384
6385 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6386 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6387 goto nla_put_failure;
6388 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6389 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6390 goto nla_put_failure;
6391 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6392 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6393 survey->channel_time))
6394 goto nla_put_failure;
6395 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6396 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6397 survey->channel_time_busy))
6398 goto nla_put_failure;
6399 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6400 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6401 survey->channel_time_ext_busy))
6402 goto nla_put_failure;
6403 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6404 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6405 survey->channel_time_rx))
6406 goto nla_put_failure;
6407 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6408 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6409 survey->channel_time_tx))
6410 goto nla_put_failure;
61fa713c
HS		 6411
6412 nla_nest_end(msg, infoattr);
6413
6414 return genlmsg_end(msg, hdr);
6415
6416 nla_put_failure:
6417 genlmsg_cancel(msg, hdr);
6418 return -EMSGSIZE;
6419}
6420
6421static int nl80211_dump_survey(struct sk_buff *skb,
6422 struct netlink_callback *cb)
6423{
6424 struct survey_info survey;
1b8ec87a 6425 struct cfg80211_registered_device *rdev;
97990a06
JB		 6426 struct wireless_dev *wdev;
6427 int survey_idx = cb->args[2];
61fa713c
HS		 6428 int res;
6429
1b8ec87a 6430 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6431 if (res)
6432 return res;
61fa713c 6433
97990a06
JB		 6434 if (!wdev->netdev) {
6435 res = -EINVAL;
6436 goto out_err;
6437 }
6438
1b8ec87a 6439 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6440 res = -EOPNOTSUPP;
6441 goto out_err;
6442 }
6443
6444 while (1) {
180cdc79
LR		 6445 struct ieee80211_channel *chan;
6446
1b8ec87a 6447 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6448 if (res == -ENOENT)
6449 break;
6450 if (res)
6451 goto out_err;
6452
180cdc79
LR		 6453 /* Survey without a channel doesn't make sense */
6454 if (!survey.channel) {
6455 res = -EINVAL;
6456 goto out;
6457 }
6458
1b8ec87a 6459 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6460 survey.channel->center_freq);
6461 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6462 survey_idx++;
6463 continue;
6464 }
6465
61fa713c 6466 if (nl80211_send_survey(skb,
15e47304 6467 NETLINK_CB(cb->skb).portid,
61fa713c 6468 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6469 wdev->netdev, &survey) < 0)
61fa713c
HS		 6470 goto out;
6471 survey_idx++;
6472 }
6473
6474 out:
97990a06 6475 cb->args[2] = survey_idx;
61fa713c
HS		 6476 res = skb->len;
6477 out_err:
1b8ec87a 6478 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6479 return res;
6480}
6481
b23aa676
SO		 6482static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6483{
6484 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6485 NL80211_WPA_VERSION_2));
6486}
6487
636a5d36
JM		 6488static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6489{
4c476991
JB		 6490 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6491 struct net_device *dev = info->user_ptr[1];
19957bb3 6492 struct ieee80211_channel *chan;
e39e5b5e
JM		 6493 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6494 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6495 enum nl80211_auth_type auth_type;
fffd0934 6496 struct key_parse key;
d5cdfacb 6497 bool local_state_change;
636a5d36 6498
f4a11bb0
JB		 6499 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6500 return -EINVAL;
6501
6502 if (!info->attrs[NL80211_ATTR_MAC])
6503 return -EINVAL;
6504
1778092e
JM		 6505 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6506 return -EINVAL;
6507
19957bb3
JB		 6508 if (!info->attrs[NL80211_ATTR_SSID])
6509 return -EINVAL;
6510
6511 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6512 return -EINVAL;
6513
fffd0934
JB		 6514 err = nl80211_parse_key(info, &key);
6515 if (err)
6516 return err;
6517
6518 if (key.idx >= 0) {
e31b8213
JB		 6519 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6520 return -EINVAL;
fffd0934
JB		 6521 if (!key.p.key || !key.p.key_len)
6522 return -EINVAL;
6523 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6524 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6525 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6526 key.p.key_len != WLAN_KEY_LEN_WEP104))
6527 return -EINVAL;
6528 if (key.idx > 4)
6529 return -EINVAL;
6530 } else {
6531 key.p.key_len = 0;
6532 key.p.key = NULL;
6533 }
6534
afea0b7a
JB		 6535 if (key.idx >= 0) {
6536 int i;
6537 bool ok = false;
6538 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6539 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6540 ok = true;
6541 break;
6542 }
6543 }
4c476991
JB		 6544 if (!ok)
6545 return -EINVAL;
afea0b7a
JB		 6546 }
6547
4c476991
JB		 6548 if (!rdev->ops->auth)
6549 return -EOPNOTSUPP;
636a5d36 6550
074ac8df 6551 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6552 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6553 return -EOPNOTSUPP;
eec60b03 6554
19957bb3 6555 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6556 chan = nl80211_get_valid_chan(&rdev->wiphy,
6557 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6558 if (!chan)
4c476991 6559 return -EINVAL;
636a5d36 6560
19957bb3
JB		 6561 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6562 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6563
6564 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6565 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6566 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6567 }
6568
19957bb3 6569 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6570 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6571 return -EINVAL;
636a5d36 6572
e39e5b5e
JM		 6573 if (auth_type == NL80211_AUTHTYPE_SAE &&
6574 !info->attrs[NL80211_ATTR_SAE_DATA])
6575 return -EINVAL;
6576
6577 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6578 if (auth_type != NL80211_AUTHTYPE_SAE)
6579 return -EINVAL;
6580 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6581 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6582 /* need to include at least Auth Transaction and Status Code */
6583 if (sae_data_len < 4)
6584 return -EINVAL;
6585 }
6586
d5cdfacb
JM		 6587 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6588
95de817b
JB		 6589 /*
6590 * Since we no longer track auth state, ignore
6591 * requests to only change local state.
6592 */
6593 if (local_state_change)
6594 return 0;
6595
91bf9b26
JB		 6596 wdev_lock(dev->ieee80211_ptr);
6597 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6598 ssid, ssid_len, ie, ie_len,
6599 key.p.key, key.p.key_len, key.idx,
6600 sae_data, sae_data_len);
6601 wdev_unlock(dev->ieee80211_ptr);
6602 return err;
636a5d36
JM		 6603}
6604
c0692b8f
JB		 6605static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6606 struct genl_info *info,
3dc27d25
JB		 6607 struct cfg80211_crypto_settings *settings,
6608 int cipher_limit)
b23aa676 6609{
c0b2bbd8
JB		 6610 memset(settings, 0, sizeof(*settings));
6611
b23aa676
SO		 6612 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6613
c0692b8f
JB		 6614 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6615 u16 proto;
6616 proto = nla_get_u16(
6617 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6618 settings->control_port_ethertype = cpu_to_be16(proto);
6619 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6620 proto != ETH_P_PAE)
6621 return -EINVAL;
6622 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6623 settings->control_port_no_encrypt = true;
6624 } else
6625 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6626
b23aa676
SO		 6627 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6628 void *data;
6629 int len, i;
6630
6631 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6632 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6633 settings->n_ciphers_pairwise = len / sizeof(u32);
6634
6635 if (len % sizeof(u32))
6636 return -EINVAL;
6637
3dc27d25 6638 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6639 return -EINVAL;
6640
6641 memcpy(settings->ciphers_pairwise, data, len);
6642
6643 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6644 if (!cfg80211_supported_cipher_suite(
6645 &rdev->wiphy,
b23aa676
SO		 6646 settings->ciphers_pairwise[i]))
6647 return -EINVAL;
6648 }
6649
6650 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6651 settings->cipher_group =
6652 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6653 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6654 settings->cipher_group))
b23aa676
SO		 6655 return -EINVAL;
6656 }
6657
6658 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6659 settings->wpa_versions =
6660 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6661 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6662 return -EINVAL;
6663 }
6664
6665 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6666 void *data;
6d30240e 6667 int len;
b23aa676
SO		 6668
6669 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6670 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6671 settings->n_akm_suites = len / sizeof(u32);
6672
6673 if (len % sizeof(u32))
6674 return -EINVAL;
6675
1b9ca027
JM		 6676 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6677 return -EINVAL;
6678
b23aa676 6679 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6680 }
6681
6682 return 0;
6683}
6684
636a5d36
JM		 6685static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6686{
4c476991
JB		 6687 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6688 struct net_device *dev = info->user_ptr[1];
f444de05 6689 struct ieee80211_channel *chan;
f62fab73
JB		 6690 struct cfg80211_assoc_request req = {};
6691 const u8 *bssid, *ssid;
6692 int err, ssid_len = 0;
636a5d36 6693
f4a11bb0
JB		 6694 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6695 return -EINVAL;
6696
6697 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6698 !info->attrs[NL80211_ATTR_SSID] ||
6699 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6700 return -EINVAL;
6701
4c476991
JB		 6702 if (!rdev->ops->assoc)
6703 return -EOPNOTSUPP;
636a5d36 6704
074ac8df 6705 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6706 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6707 return -EOPNOTSUPP;
eec60b03 6708
19957bb3 6709 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6710
664834de
JM		 6711 chan = nl80211_get_valid_chan(&rdev->wiphy,
6712 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6713 if (!chan)
4c476991 6714 return -EINVAL;
636a5d36 6715
19957bb3
JB		 6716 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6717 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6718
6719 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6720 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6721 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6722 }
6723
dc6382ce 6724 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6725 enum nl80211_mfp mfp =
dc6382ce 6726 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6727 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6728 req.use_mfp = true;
4c476991
JB		 6729 else if (mfp != NL80211_MFP_NO)
6730 return -EINVAL;
dc6382ce
JM		 6731 }
6732
3e5d7649 6733 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6734 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6735
7e7c8926 6736 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6737 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6738
6739 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6740 memcpy(&req.ht_capa_mask,
6741 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6742 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6743
6744 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6745 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6746 return -EINVAL;
f62fab73
JB		 6747 memcpy(&req.ht_capa,
6748 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6749 sizeof(req.ht_capa));
7e7c8926
BG		 6750 }
6751
ee2aca34 6752 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6753 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6754
6755 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6756 memcpy(&req.vht_capa_mask,
6757 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6758 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6759
6760 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6761 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6762 return -EINVAL;
f62fab73
JB		 6763 memcpy(&req.vht_capa,
6764 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6765 sizeof(req.vht_capa));
ee2aca34
JB		 6766 }
6767
bab5ab7d
AK		 6768 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
6769 if (!(rdev->wiphy.features &
6770 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
6771 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
6772 return -EINVAL;
6773 req.flags |= ASSOC_REQ_USE_RRM;
6774 }
6775
f62fab73 6776 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6777 if (!err) {
6778 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6779 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6780 ssid, ssid_len, &req);
91bf9b26
JB		 6781 wdev_unlock(dev->ieee80211_ptr);
6782 }
636a5d36 6783
636a5d36
JM		 6784 return err;
6785}
6786
6787static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6788{
4c476991
JB		 6789 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6790 struct net_device *dev = info->user_ptr[1];
19957bb3 6791 const u8 *ie = NULL, *bssid;
91bf9b26 6792 int ie_len = 0, err;
19957bb3 6793 u16 reason_code;
d5cdfacb 6794 bool local_state_change;
636a5d36 6795
f4a11bb0
JB		 6796 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6797 return -EINVAL;
6798
6799 if (!info->attrs[NL80211_ATTR_MAC])
6800 return -EINVAL;
6801
6802 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6803 return -EINVAL;
6804
4c476991
JB		 6805 if (!rdev->ops->deauth)
6806 return -EOPNOTSUPP;
636a5d36 6807
074ac8df 6808 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6809 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6810 return -EOPNOTSUPP;
eec60b03 6811
19957bb3 6812 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6813
19957bb3
JB		 6814 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6815 if (reason_code == 0) {
f4a11bb0 6816 /* Reason Code 0 is reserved */
4c476991 6817 return -EINVAL;
255e737e 6818 }
636a5d36
JM		 6819
6820 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6821 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6822 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6823 }
6824
d5cdfacb
JM		 6825 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6826
91bf9b26
JB		 6827 wdev_lock(dev->ieee80211_ptr);
6828 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6829 local_state_change);
6830 wdev_unlock(dev->ieee80211_ptr);
6831 return err;
636a5d36
JM		 6832}
6833
6834static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6835{
4c476991
JB		 6836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6837 struct net_device *dev = info->user_ptr[1];
19957bb3 6838 const u8 *ie = NULL, *bssid;
91bf9b26 6839 int ie_len = 0, err;
19957bb3 6840 u16 reason_code;
d5cdfacb 6841 bool local_state_change;
636a5d36 6842
f4a11bb0
JB		 6843 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6844 return -EINVAL;
6845
6846 if (!info->attrs[NL80211_ATTR_MAC])
6847 return -EINVAL;
6848
6849 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6850 return -EINVAL;
6851
4c476991
JB		 6852 if (!rdev->ops->disassoc)
6853 return -EOPNOTSUPP;
636a5d36 6854
074ac8df 6855 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6856 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6857 return -EOPNOTSUPP;
eec60b03 6858
19957bb3 6859 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6860
19957bb3
JB		 6861 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6862 if (reason_code == 0) {
f4a11bb0 6863 /* Reason Code 0 is reserved */
4c476991 6864 return -EINVAL;
255e737e 6865 }
636a5d36
JM		 6866
6867 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6868 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6869 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6870 }
6871
d5cdfacb
JM		 6872 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6873
91bf9b26
JB		 6874 wdev_lock(dev->ieee80211_ptr);
6875 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6876 local_state_change);
6877 wdev_unlock(dev->ieee80211_ptr);
6878 return err;
636a5d36
JM		 6879}
6880
dd5b4cc7
FF		 6881static bool
6882nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6883 int mcast_rate[IEEE80211_NUM_BANDS],
6884 int rateval)
6885{
6886 struct wiphy *wiphy = &rdev->wiphy;
6887 bool found = false;
6888 int band, i;
6889
6890 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6891 struct ieee80211_supported_band *sband;
6892
6893 sband = wiphy->bands[band];
6894 if (!sband)
6895 continue;
6896
6897 for (i = 0; i < sband->n_bitrates; i++) {
6898 if (sband->bitrates[i].bitrate == rateval) {
6899 mcast_rate[band] = i + 1;
6900 found = true;
6901 break;
6902 }
6903 }
6904 }
6905
6906 return found;
6907}
6908
04a773ad
JB		 6909static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6910{
4c476991
JB		 6911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6912 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6913 struct cfg80211_ibss_params ibss;
6914 struct wiphy *wiphy;
fffd0934 6915 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6916 int err;
6917
8e30bc55
JB		 6918 memset(&ibss, 0, sizeof(ibss));
6919
04a773ad
JB		 6920 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6921 return -EINVAL;
6922
683b6d3b 6923 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6924 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6925 return -EINVAL;
6926
8e30bc55
JB		 6927 ibss.beacon_interval = 100;
6928
6929 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6930 ibss.beacon_interval =
6931 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6932 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6933 return -EINVAL;
6934 }
6935
4c476991
JB		 6936 if (!rdev->ops->join_ibss)
6937 return -EOPNOTSUPP;
04a773ad 6938
4c476991
JB		 6939 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6940 return -EOPNOTSUPP;
04a773ad 6941
79c97e97 6942 wiphy = &rdev->wiphy;
04a773ad 6943
39193498 6944 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6945 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6946
6947 if (!is_valid_ether_addr(ibss.bssid))
6948 return -EINVAL;
6949 }
04a773ad
JB		 6950 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6951 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6952
6953 if (info->attrs[NL80211_ATTR_IE]) {
6954 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6955 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6956 }
6957
683b6d3b
JB		 6958 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6959 if (err)
6960 return err;
04a773ad 6961
174e0cd2
IP		 6962 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6963 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6964 return -EINVAL;
6965
2f301ab2 6966 switch (ibss.chandef.width) {
bf372645
SW		 6967 case NL80211_CHAN_WIDTH_5:
6968 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6969 case NL80211_CHAN_WIDTH_20_NOHT:
6970 break;
6971 case NL80211_CHAN_WIDTH_20:
6972 case NL80211_CHAN_WIDTH_40:
6973 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6974 break;
6975 default:
c04d6150 6976 return -EINVAL;
2f301ab2 6977 }
db9c64cf 6978
04a773ad 6979 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6980 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6981
fbd2c8dc
TP		 6982 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6983 u8 *rates =
6984 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6985 int n_rates =
6986 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6987 struct ieee80211_supported_band *sband =
683b6d3b 6988 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6989
34850ab2
JB		 6990 err = ieee80211_get_ratemask(sband, rates, n_rates,
6991 &ibss.basic_rates);
6992 if (err)
6993 return err;
fbd2c8dc 6994 }
dd5b4cc7 6995
803768f5
SW		 6996 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6997 memcpy(&ibss.ht_capa_mask,
6998 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6999 sizeof(ibss.ht_capa_mask));
7000
7001 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7002 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7003 return -EINVAL;
7004 memcpy(&ibss.ht_capa,
7005 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7006 sizeof(ibss.ht_capa));
7007 }
7008
dd5b4cc7
FF		 7009 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7010 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7011 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7012 return -EINVAL;
fbd2c8dc 7013
4c476991 7014 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7015 bool no_ht = false;
7016
4c476991 7017 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7018 info->attrs[NL80211_ATTR_KEYS],
7019 &no_ht);
4c476991
JB		 7020 if (IS_ERR(connkeys))
7021 return PTR_ERR(connkeys);
de7044ee 7022
3d9d1d66
JB		 7023 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7024 no_ht) {
de7044ee
SM		 7025 kfree(connkeys);
7026 return -EINVAL;
7027 }
4c476991 7028 }
04a773ad 7029
267335d6
AQ		 7030 ibss.control_port =
7031 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7032
5336fa88
SW		 7033 ibss.userspace_handles_dfs =
7034 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7035
4c476991 7036 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7037 if (err)
b47f610b 7038 kzfree(connkeys);
04a773ad
JB		 7039 return err;
7040}
7041
7042static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7043{
4c476991
JB		 7044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7045 struct net_device *dev = info->user_ptr[1];
04a773ad 7046
4c476991
JB		 7047 if (!rdev->ops->leave_ibss)
7048 return -EOPNOTSUPP;
04a773ad 7049
4c476991
JB		 7050 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7051 return -EOPNOTSUPP;
04a773ad 7052
4c476991 7053 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7054}
7055
f4e583c8
AQ		 7056static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7057{
7058 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7059 struct net_device *dev = info->user_ptr[1];
7060 int mcast_rate[IEEE80211_NUM_BANDS];
7061 u32 nla_rate;
7062 int err;
7063
7064 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7065 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7066 return -EOPNOTSUPP;
7067
7068 if (!rdev->ops->set_mcast_rate)
7069 return -EOPNOTSUPP;
7070
7071 memset(mcast_rate, 0, sizeof(mcast_rate));
7072
7073 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7074 return -EINVAL;
7075
7076 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7077 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7078 return -EINVAL;
7079
7080 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7081
7082 return err;
7083}
7084
ad7e718c
JB		 7085static struct sk_buff *
7086__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7087 int approxlen, u32 portid, u32 seq,
7088 enum nl80211_commands cmd,
567ffc35
JB		 7089 enum nl80211_attrs attr,
7090 const struct nl80211_vendor_cmd_info *info,
7091 gfp_t gfp)
ad7e718c
JB		 7092{
7093 struct sk_buff *skb;
7094 void *hdr;
7095 struct nlattr *data;
7096
7097 skb = nlmsg_new(approxlen + 100, gfp);
7098 if (!skb)
7099 return NULL;
7100
7101 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7102 if (!hdr) {
7103 kfree_skb(skb);
7104 return NULL;
7105 }
7106
7107 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7108 goto nla_put_failure;
567ffc35
JB		 7109
7110 if (info) {
7111 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7112 info->vendor_id))
7113 goto nla_put_failure;
7114 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7115 info->subcmd))
7116 goto nla_put_failure;
7117 }
7118
ad7e718c
JB		 7119 data = nla_nest_start(skb, attr);
7120
7121 ((void **)skb->cb)[0] = rdev;
7122 ((void **)skb->cb)[1] = hdr;
7123 ((void **)skb->cb)[2] = data;
7124
7125 return skb;
7126
7127 nla_put_failure:
7128 kfree_skb(skb);
7129 return NULL;
7130}
f4e583c8 7131
e03ad6ea
JB		 7132struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7133 enum nl80211_commands cmd,
7134 enum nl80211_attrs attr,
7135 int vendor_event_idx,
7136 int approxlen, gfp_t gfp)
7137{
f26cbf40 7138 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7139 const struct nl80211_vendor_cmd_info *info;
7140
7141 switch (cmd) {
7142 case NL80211_CMD_TESTMODE:
7143 if (WARN_ON(vendor_event_idx != -1))
7144 return NULL;
7145 info = NULL;
7146 break;
7147 case NL80211_CMD_VENDOR:
7148 if (WARN_ON(vendor_event_idx < 0 ||
7149 vendor_event_idx >= wiphy->n_vendor_events))
7150 return NULL;
7151 info = &wiphy->vendor_events[vendor_event_idx];
7152 break;
7153 default:
7154 WARN_ON(1);
7155 return NULL;
7156 }
7157
7158 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7159 cmd, attr, info, gfp);
7160}
7161EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7162
7163void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7164{
7165 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7166 void *hdr = ((void **)skb->cb)[1];
7167 struct nlattr *data = ((void **)skb->cb)[2];
7168 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7169
bd8c78e7
JB		 7170 /* clear CB data for netlink core to own from now on */
7171 memset(skb->cb, 0, sizeof(skb->cb));
7172
e03ad6ea
JB		 7173 nla_nest_end(skb, data);
7174 genlmsg_end(skb, hdr);
7175
7176 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7177 mcgrp = NL80211_MCGRP_VENDOR;
7178
7179 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7180 mcgrp, gfp);
7181}
7182EXPORT_SYMBOL(__cfg80211_send_event_skb);
7183
aff89a9b 7184#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7185static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7186{
4c476991 7187 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7188 struct wireless_dev *wdev =
7189 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7190 int err;
7191
fc73f11f
DS		 7192 if (!rdev->ops->testmode_cmd)
7193 return -EOPNOTSUPP;
7194
7195 if (IS_ERR(wdev)) {
7196 err = PTR_ERR(wdev);
7197 if (err != -EINVAL)
7198 return err;
7199 wdev = NULL;
7200 } else if (wdev->wiphy != &rdev->wiphy) {
7201 return -EINVAL;
7202 }
7203
aff89a9b
JB		 7204 if (!info->attrs[NL80211_ATTR_TESTDATA])
7205 return -EINVAL;
7206
ad7e718c 7207 rdev->cur_cmd_info = info;
fc73f11f 7208 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7209 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7210 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7211 rdev->cur_cmd_info = NULL;
aff89a9b 7212
aff89a9b
JB		 7213 return err;
7214}
7215
71063f0e
WYG		 7216static int nl80211_testmode_dump(struct sk_buff *skb,
7217 struct netlink_callback *cb)
7218{
00918d33 7219 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7220 int err;
7221 long phy_idx;
7222 void *data = NULL;
7223 int data_len = 0;
7224
5fe231e8
JB		 7225 rtnl_lock();
7226
71063f0e
WYG		 7227 if (cb->args[0]) {
7228 /*
7229 * 0 is a valid index, but not valid for args[0],
7230 * so we need to offset by 1.
7231 */
7232 phy_idx = cb->args[0] - 1;
7233 } else {
7234 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7235 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7236 nl80211_policy);
7237 if (err)
5fe231e8 7238 goto out_err;
00918d33 7239
2bd7e35d
JB		 7240 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7241 nl80211_fam.attrbuf);
7242 if (IS_ERR(rdev)) {
5fe231e8
JB		 7243 err = PTR_ERR(rdev);
7244 goto out_err;
00918d33 7245 }
2bd7e35d
JB		 7246 phy_idx = rdev->wiphy_idx;
7247 rdev = NULL;
2bd7e35d 7248
71063f0e
WYG		 7249 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7250 cb->args[1] =
7251 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7252 }
7253
7254 if (cb->args[1]) {
7255 data = nla_data((void *)cb->args[1]);
7256 data_len = nla_len((void *)cb->args[1]);
7257 }
7258
00918d33
JB		 7259 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7260 if (!rdev) {
5fe231e8
JB		 7261 err = -ENOENT;
7262 goto out_err;
71063f0e 7263 }
71063f0e 7264
00918d33 7265 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7266 err = -EOPNOTSUPP;
7267 goto out_err;
7268 }
7269
7270 while (1) {
15e47304 7271 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7272 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7273 NL80211_CMD_TESTMODE);
7274 struct nlattr *tmdata;
7275
cb35fba3
DC		 7276 if (!hdr)
7277 break;
7278
9360ffd1 7279 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7280 genlmsg_cancel(skb, hdr);
7281 break;
7282 }
7283
7284 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7285 if (!tmdata) {
7286 genlmsg_cancel(skb, hdr);
7287 break;
7288 }
e35e4d28 7289 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7290 nla_nest_end(skb, tmdata);
7291
7292 if (err == -ENOBUFS || err == -ENOENT) {
7293 genlmsg_cancel(skb, hdr);
7294 break;
7295 } else if (err) {
7296 genlmsg_cancel(skb, hdr);
7297 goto out_err;
7298 }
7299
7300 genlmsg_end(skb, hdr);
7301 }
7302
7303 err = skb->len;
7304 /* see above */
7305 cb->args[0] = phy_idx + 1;
7306 out_err:
5fe231e8 7307 rtnl_unlock();
71063f0e
WYG		 7308 return err;
7309}
aff89a9b
JB		 7310#endif
7311
b23aa676
SO		 7312static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7313{
4c476991
JB		 7314 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7315 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7316 struct cfg80211_connect_params connect;
7317 struct wiphy *wiphy;
fffd0934 7318 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7319 int err;
7320
7321 memset(&connect, 0, sizeof(connect));
7322
7323 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7324 return -EINVAL;
7325
7326 if (!info->attrs[NL80211_ATTR_SSID] ||
7327 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7328 return -EINVAL;
7329
7330 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7331 connect.auth_type =
7332 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7333 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7334 NL80211_CMD_CONNECT))
b23aa676
SO		 7335 return -EINVAL;
7336 } else
7337 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7338
7339 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7340
c0692b8f 7341 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7342 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7343 if (err)
7344 return err;
b23aa676 7345
074ac8df 7346 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7347 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7348 return -EOPNOTSUPP;
b23aa676 7349
79c97e97 7350 wiphy = &rdev->wiphy;
b23aa676 7351
4486ea98
BS		 7352 connect.bg_scan_period = -1;
7353 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7354 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7355 connect.bg_scan_period =
7356 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7357 }
7358
b23aa676
SO		 7359 if (info->attrs[NL80211_ATTR_MAC])
7360 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7361 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7362 connect.bssid_hint =
7363 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7364 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7365 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7366
7367 if (info->attrs[NL80211_ATTR_IE]) {
7368 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7369 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7370 }
7371
cee00a95
JM		 7372 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7373 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7374 if (connect.mfp != NL80211_MFP_REQUIRED &&
7375 connect.mfp != NL80211_MFP_NO)
7376 return -EINVAL;
7377 } else {
7378 connect.mfp = NL80211_MFP_NO;
7379 }
7380
b23aa676 7381 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7382 connect.channel = nl80211_get_valid_chan(
7383 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7384 if (!connect.channel)
1df4a510
JM		 7385 return -EINVAL;
7386 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7387 connect.channel_hint = nl80211_get_valid_chan(
7388 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7389 if (!connect.channel_hint)
4c476991 7390 return -EINVAL;
b23aa676
SO		 7391 }
7392
fffd0934
JB		 7393 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7394 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7395 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7396 if (IS_ERR(connkeys))
7397 return PTR_ERR(connkeys);
fffd0934
JB		 7398 }
7399
7e7c8926
BG		 7400 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7401 connect.flags |= ASSOC_REQ_DISABLE_HT;
7402
7403 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7404 memcpy(&connect.ht_capa_mask,
7405 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7406 sizeof(connect.ht_capa_mask));
7407
7408 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7409 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7410 kzfree(connkeys);
7e7c8926 7411 return -EINVAL;
b4e4f47e 7412 }
7e7c8926
BG		 7413 memcpy(&connect.ht_capa,
7414 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7415 sizeof(connect.ht_capa));
7416 }
7417
ee2aca34
JB		 7418 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7419 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7420
7421 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7422 memcpy(&connect.vht_capa_mask,
7423 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7424 sizeof(connect.vht_capa_mask));
7425
7426 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7427 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7428 kzfree(connkeys);
ee2aca34
JB		 7429 return -EINVAL;
7430 }
7431 memcpy(&connect.vht_capa,
7432 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7433 sizeof(connect.vht_capa));
7434 }
7435
bab5ab7d
AK		 7436 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7437 if (!(rdev->wiphy.features &
7438 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7439 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7440 return -EINVAL;
7441 connect.flags |= ASSOC_REQ_USE_RRM;
7442 }
7443
83739b03
JB		 7444 wdev_lock(dev->ieee80211_ptr);
7445 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7446 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7447 if (err)
b47f610b 7448 kzfree(connkeys);
b23aa676
SO		 7449 return err;
7450}
7451
7452static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7453{
4c476991
JB		 7454 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7455 struct net_device *dev = info->user_ptr[1];
b23aa676 7456 u16 reason;
83739b03 7457 int ret;
b23aa676
SO		 7458
7459 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7460 reason = WLAN_REASON_DEAUTH_LEAVING;
7461 else
7462 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7463
7464 if (reason == 0)
7465 return -EINVAL;
7466
074ac8df 7467 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7468 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7469 return -EOPNOTSUPP;
b23aa676 7470
83739b03
JB		 7471 wdev_lock(dev->ieee80211_ptr);
7472 ret = cfg80211_disconnect(rdev, dev, reason, true);
7473 wdev_unlock(dev->ieee80211_ptr);
7474 return ret;
b23aa676
SO		 7475}
7476
463d0183
JB		 7477static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7478{
4c476991 7479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7480 struct net *net;
7481 int err;
7482 u32 pid;
7483
7484 if (!info->attrs[NL80211_ATTR_PID])
7485 return -EINVAL;
7486
7487 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7488
463d0183 7489 net = get_net_ns_by_pid(pid);
4c476991
JB		 7490 if (IS_ERR(net))
7491 return PTR_ERR(net);
463d0183
JB		 7492
7493 err = 0;
7494
7495 /* check if anything to do */
4c476991
JB		 7496 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7497 err = cfg80211_switch_netns(rdev, net);
463d0183 7498
463d0183 7499 put_net(net);
463d0183
JB		 7500 return err;
7501}
7502
67fbb16b
SO		 7503static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7504{
4c476991 7505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7506 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7507 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7508 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7509 struct cfg80211_pmksa pmksa;
7510
7511 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7512
7513 if (!info->attrs[NL80211_ATTR_MAC])
7514 return -EINVAL;
7515
7516 if (!info->attrs[NL80211_ATTR_PMKID])
7517 return -EINVAL;
7518
67fbb16b
SO		 7519 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7520 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7521
074ac8df 7522 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7523 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7524 return -EOPNOTSUPP;
67fbb16b
SO		 7525
7526 switch (info->genlhdr->cmd) {
7527 case NL80211_CMD_SET_PMKSA:
7528 rdev_ops = rdev->ops->set_pmksa;
7529 break;
7530 case NL80211_CMD_DEL_PMKSA:
7531 rdev_ops = rdev->ops->del_pmksa;
7532 break;
7533 default:
7534 WARN_ON(1);
7535 break;
7536 }
7537
4c476991
JB		 7538 if (!rdev_ops)
7539 return -EOPNOTSUPP;
67fbb16b 7540
4c476991 7541 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7542}
7543
7544static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7545{
4c476991
JB		 7546 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7547 struct net_device *dev = info->user_ptr[1];
67fbb16b 7548
074ac8df 7549 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7550 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7551 return -EOPNOTSUPP;
67fbb16b 7552
4c476991
JB		 7553 if (!rdev->ops->flush_pmksa)
7554 return -EOPNOTSUPP;
67fbb16b 7555
e35e4d28 7556 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7557}
7558
109086ce
AN		 7559static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7560{
7561 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7562 struct net_device *dev = info->user_ptr[1];
7563 u8 action_code, dialog_token;
df942e7b 7564 u32 peer_capability = 0;
109086ce
AN		 7565 u16 status_code;
7566 u8 *peer;
31fa97c5 7567 bool initiator;
109086ce
AN		 7568
7569 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7570 !rdev->ops->tdls_mgmt)
7571 return -EOPNOTSUPP;
7572
7573 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7574 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7575 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7576 !info->attrs[NL80211_ATTR_IE] ||
7577 !info->attrs[NL80211_ATTR_MAC])
7578 return -EINVAL;
7579
7580 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7581 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7582 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7583 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7584 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7585 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7586 peer_capability =
7587 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7588
e35e4d28 7589 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7590 dialog_token, status_code, peer_capability,
31fa97c5 7591 initiator,
e35e4d28
HG		 7592 nla_data(info->attrs[NL80211_ATTR_IE]),
7593 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7594}
7595
7596static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7597{
7598 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7599 struct net_device *dev = info->user_ptr[1];
7600 enum nl80211_tdls_operation operation;
7601 u8 *peer;
7602
7603 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7604 !rdev->ops->tdls_oper)
7605 return -EOPNOTSUPP;
7606
7607 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7608 !info->attrs[NL80211_ATTR_MAC])
7609 return -EINVAL;
7610
7611 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7612 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7613
e35e4d28 7614 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7615}
7616
9588bbd5
JM		 7617static int nl80211_remain_on_channel(struct sk_buff *skb,
7618 struct genl_info *info)
7619{
4c476991 7620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7621 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7622 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7623 struct sk_buff *msg;
7624 void *hdr;
7625 u64 cookie;
683b6d3b 7626 u32 duration;
9588bbd5
JM		 7627 int err;
7628
7629 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7630 !info->attrs[NL80211_ATTR_DURATION])
7631 return -EINVAL;
7632
7633 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7634
ebf348fc
JB		 7635 if (!rdev->ops->remain_on_channel ||
7636 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7637 return -EOPNOTSUPP;
7638
9588bbd5 7639 /*
ebf348fc
JB		 7640 * We should be on that channel for at least a minimum amount of
7641 * time (10ms) but no longer than the driver supports.
9588bbd5 7642 */
ebf348fc 7643 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7644 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7645 return -EINVAL;
7646
683b6d3b
JB		 7647 err = nl80211_parse_chandef(rdev, info, &chandef);
7648 if (err)
7649 return err;
9588bbd5
JM		 7650
7651 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7652 if (!msg)
7653 return -ENOMEM;
9588bbd5 7654
15e47304 7655 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7656 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7657 if (!hdr) {
7658 err = -ENOBUFS;
9588bbd5
JM		 7659 goto free_msg;
7660 }
7661
683b6d3b
JB		 7662 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7663 duration, &cookie);
9588bbd5
JM		 7664
7665 if (err)
7666 goto free_msg;
7667
9360ffd1
DM		 7668 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7669 goto nla_put_failure;
9588bbd5
JM		 7670
7671 genlmsg_end(msg, hdr);
4c476991
JB		 7672
7673 return genlmsg_reply(msg, info);
9588bbd5
JM		 7674
7675 nla_put_failure:
7676 err = -ENOBUFS;
7677 free_msg:
7678 nlmsg_free(msg);
9588bbd5
JM		 7679 return err;
7680}
7681
7682static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7683 struct genl_info *info)
7684{
4c476991 7685 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7686 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7687 u64 cookie;
9588bbd5
JM		 7688
7689 if (!info->attrs[NL80211_ATTR_COOKIE])
7690 return -EINVAL;
7691
4c476991
JB		 7692 if (!rdev->ops->cancel_remain_on_channel)
7693 return -EOPNOTSUPP;
9588bbd5 7694
9588bbd5
JM		 7695 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7696
e35e4d28 7697 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7698}
7699
13ae75b1
JM		 7700static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7701 u8 *rates, u8 rates_len)
7702{
7703 u8 i;
7704 u32 mask = 0;
7705
7706 for (i = 0; i < rates_len; i++) {
7707 int rate = (rates[i] & 0x7f) * 5;
7708 int ridx;
7709 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7710 struct ieee80211_rate *srate =
7711 &sband->bitrates[ridx];
7712 if (rate == srate->bitrate) {
7713 mask |= 1 << ridx;
7714 break;
7715 }
7716 }
7717 if (ridx == sband->n_bitrates)
7718 return 0; /* rate not found */
7719 }
7720
7721 return mask;
7722}
7723
24db78c0
SW		 7724static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7725 u8 *rates, u8 rates_len,
7726 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7727{
7728 u8 i;
7729
7730 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7731
7732 for (i = 0; i < rates_len; i++) {
7733 int ridx, rbit;
7734
7735 ridx = rates[i] / 8;
7736 rbit = BIT(rates[i] % 8);
7737
7738 /* check validity */
910570b5 7739 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7740 return false;
7741
7742 /* check availability */
7743 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7744 mcs[ridx] |= rbit;
7745 else
7746 return false;
7747 }
7748
7749 return true;
7750}
7751
204e35a9
JD		 7752static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7753{
7754 u16 mcs_mask = 0;
7755
7756 switch (vht_mcs_map) {
7757 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7758 break;
7759 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7760 mcs_mask = 0x00FF;
7761 break;
7762 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7763 mcs_mask = 0x01FF;
7764 break;
7765 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7766 mcs_mask = 0x03FF;
7767 break;
7768 default:
7769 break;
7770 }
7771
7772 return mcs_mask;
7773}
7774
7775static void vht_build_mcs_mask(u16 vht_mcs_map,
7776 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7777{
7778 u8 nss;
7779
7780 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7781 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7782 vht_mcs_map >>= 2;
7783 }
7784}
7785
7786static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7787 struct nl80211_txrate_vht *txrate,
7788 u16 mcs[NL80211_VHT_NSS_MAX])
7789{
7790 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7791 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7792 u8 i;
7793
7794 if (!sband->vht_cap.vht_supported)
7795 return false;
7796
7797 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7798
7799 /* Build vht_mcs_mask from VHT capabilities */
7800 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7801
7802 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7803 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7804 mcs[i] = txrate->mcs[i];
7805 else
7806 return false;
7807 }
7808
7809 return true;
7810}
7811
b54452b0 7812static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7813 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7814 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7815 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7816 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7817 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7818 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7819};
7820
7821static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7822 struct genl_info *info)
7823{
7824 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7825 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7826 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7827 int rem, i;
7828 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7829 struct nlattr *tx_rates;
7830 struct ieee80211_supported_band *sband;
204e35a9 7831 u16 vht_tx_mcs_map;
13ae75b1 7832
4c476991
JB		 7833 if (!rdev->ops->set_bitrate_mask)
7834 return -EOPNOTSUPP;
13ae75b1
JM		 7835
7836 memset(&mask, 0, sizeof(mask));
7837 /* Default to all rates enabled */
7838 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7839 sband = rdev->wiphy.bands[i];
7869303b
JD		 7840
7841 if (!sband)
7842 continue;
7843
7844 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7845 memcpy(mask.control[i].ht_mcs,
7869303b 7846 sband->ht_cap.mcs.rx_mask,
d1e33e65 7847 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7848
7849 if (!sband->vht_cap.vht_supported)
7850 continue;
7851
7852 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7853 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7854 }
7855
b9243ab0
JD		 7856 /* if no rates are given set it back to the defaults */
7857 if (!info->attrs[NL80211_ATTR_TX_RATES])
7858 goto out;
7859
13ae75b1
JM		 7860 /*
7861 * The nested attribute uses enum nl80211_band as the index. This maps
7862 * directly to the enum ieee80211_band values used in cfg80211.
7863 */
24db78c0 7864 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7865 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7866 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7867 int err;
7868
4c476991
JB		 7869 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7870 return -EINVAL;
13ae75b1 7871 sband = rdev->wiphy.bands[band];
4c476991
JB		 7872 if (sband == NULL)
7873 return -EINVAL;
ae811e21
JB		 7874 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7875 nla_len(tx_rates), nl80211_txattr_policy);
7876 if (err)
7877 return err;
13ae75b1
JM		 7878 if (tb[NL80211_TXRATE_LEGACY]) {
7879 mask.control[band].legacy = rateset_to_mask(
7880 sband,
7881 nla_data(tb[NL80211_TXRATE_LEGACY]),
7882 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7883 if ((mask.control[band].legacy == 0) &&
7884 nla_len(tb[NL80211_TXRATE_LEGACY]))
7885 return -EINVAL;
24db78c0 7886 }
d1e33e65 7887 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7888 if (!ht_rateset_to_mask(
7889 sband,
d1e33e65
JD		 7890 nla_data(tb[NL80211_TXRATE_HT]),
7891 nla_len(tb[NL80211_TXRATE_HT]),
7892 mask.control[band].ht_mcs))
24db78c0
SW		 7893 return -EINVAL;
7894 }
204e35a9
JD		 7895 if (tb[NL80211_TXRATE_VHT]) {
7896 if (!vht_set_mcs_mask(
7897 sband,
7898 nla_data(tb[NL80211_TXRATE_VHT]),
7899 mask.control[band].vht_mcs))
7900 return -EINVAL;
7901 }
0b9323f6
JD		 7902 if (tb[NL80211_TXRATE_GI]) {
7903 mask.control[band].gi =
7904 nla_get_u8(tb[NL80211_TXRATE_GI]);
7905 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7906 return -EINVAL;
7907 }
24db78c0
SW		 7908
7909 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7910 /* don't allow empty legacy rates if HT or VHT
7911 * are not even supported.
7912 */
7913 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7914 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7915 return -EINVAL;
7916
7917 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7918 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7919 goto out;
7920
7921 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7922 if (mask.control[band].vht_mcs[i])
7923 goto out;
24db78c0
SW		 7924
7925 /* legacy and mcs rates may not be both empty */
204e35a9 7926 return -EINVAL;
13ae75b1
JM		 7927 }
7928 }
7929
b9243ab0 7930out:
e35e4d28 7931 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7932}
7933
2e161f78 7934static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7935{
4c476991 7936 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7937 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7938 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7939
7940 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7941 return -EINVAL;
7942
2e161f78
JB		 7943 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7944 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7945
71bbc994
JB		 7946 switch (wdev->iftype) {
7947 case NL80211_IFTYPE_STATION:
7948 case NL80211_IFTYPE_ADHOC:
7949 case NL80211_IFTYPE_P2P_CLIENT:
7950 case NL80211_IFTYPE_AP:
7951 case NL80211_IFTYPE_AP_VLAN:
7952 case NL80211_IFTYPE_MESH_POINT:
7953 case NL80211_IFTYPE_P2P_GO:
98104fde 7954 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7955 break;
7956 default:
4c476991 7957 return -EOPNOTSUPP;
71bbc994 7958 }
026331c4
JM		 7959
7960 /* not much point in registering if we can't reply */
4c476991
JB		 7961 if (!rdev->ops->mgmt_tx)
7962 return -EOPNOTSUPP;
026331c4 7963
15e47304 7964 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7965 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7966 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7967}
7968
2e161f78 7969static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7970{
4c476991 7971 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7972 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7973 struct cfg80211_chan_def chandef;
026331c4 7974 int err;
d64d373f 7975 void *hdr = NULL;
026331c4 7976 u64 cookie;
e247bd90 7977 struct sk_buff *msg = NULL;
b176e629
AO		 7978 struct cfg80211_mgmt_tx_params params = {
7979 .dont_wait_for_ack =
7980 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7981 };
026331c4 7982
683b6d3b 7983 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7984 return -EINVAL;
7985
4c476991
JB		 7986 if (!rdev->ops->mgmt_tx)
7987 return -EOPNOTSUPP;
026331c4 7988
71bbc994 7989 switch (wdev->iftype) {
ea141b75
AQ		 7990 case NL80211_IFTYPE_P2P_DEVICE:
7991 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7992 return -EINVAL;
71bbc994
JB		 7993 case NL80211_IFTYPE_STATION:
7994 case NL80211_IFTYPE_ADHOC:
7995 case NL80211_IFTYPE_P2P_CLIENT:
7996 case NL80211_IFTYPE_AP:
7997 case NL80211_IFTYPE_AP_VLAN:
7998 case NL80211_IFTYPE_MESH_POINT:
7999 case NL80211_IFTYPE_P2P_GO:
8000 break;
8001 default:
4c476991 8002 return -EOPNOTSUPP;
71bbc994 8003 }
026331c4 8004
f7ca38df 8005 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8006 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8007 return -EINVAL;
b176e629 8008 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8009
8010 /*
8011 * We should wait on the channel for at least a minimum amount
8012 * of time (10ms) but no longer than the driver supports.
8013 */
b176e629
AO		 8014 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8015 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8016 return -EINVAL;
8017
f7ca38df
JB		 8018 }
8019
b176e629 8020 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8021
b176e629 8022 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8023 return -EINVAL;
8024
b176e629 8025 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8026
ea141b75
AQ		 8027 /* get the channel if any has been specified, otherwise pass NULL to
8028 * the driver. The latter will use the current one
8029 */
8030 chandef.chan = NULL;
8031 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8032 err = nl80211_parse_chandef(rdev, info, &chandef);
8033 if (err)
8034 return err;
8035 }
8036
b176e629 8037 if (!chandef.chan && params.offchan)
ea141b75 8038 return -EINVAL;
026331c4 8039
34d22ce2
AO		 8040 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8041 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8042
8043 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8044 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8045 int i;
8046
8047 if (len % sizeof(u16))
8048 return -EINVAL;
8049
8050 params.n_csa_offsets = len / sizeof(u16);
8051 params.csa_offsets =
8052 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8053
8054 /* check that all the offsets fit the frame */
8055 for (i = 0; i < params.n_csa_offsets; i++) {
8056 if (params.csa_offsets[i] >= params.len)
8057 return -EINVAL;
8058 }
8059 }
8060
b176e629 8061 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8062 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8063 if (!msg)
8064 return -ENOMEM;
026331c4 8065
15e47304 8066 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8067 NL80211_CMD_FRAME);
cb35fba3
DC		 8068 if (!hdr) {
8069 err = -ENOBUFS;
e247bd90
JB		 8070 goto free_msg;
8071 }
026331c4 8072 }
e247bd90 8073
b176e629
AO		 8074 params.chan = chandef.chan;
8075 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8076 if (err)
8077 goto free_msg;
8078
e247bd90 8079 if (msg) {
9360ffd1
DM		 8080 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8081 goto nla_put_failure;
026331c4 8082
e247bd90
JB		 8083 genlmsg_end(msg, hdr);
8084 return genlmsg_reply(msg, info);
8085 }
8086
8087 return 0;
026331c4
JM		 8088
8089 nla_put_failure:
8090 err = -ENOBUFS;
8091 free_msg:
8092 nlmsg_free(msg);
026331c4
JM		 8093 return err;
8094}
8095
f7ca38df
JB		 8096static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8097{
8098 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8099 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8100 u64 cookie;
8101
8102 if (!info->attrs[NL80211_ATTR_COOKIE])
8103 return -EINVAL;
8104
8105 if (!rdev->ops->mgmt_tx_cancel_wait)
8106 return -EOPNOTSUPP;
8107
71bbc994
JB		 8108 switch (wdev->iftype) {
8109 case NL80211_IFTYPE_STATION:
8110 case NL80211_IFTYPE_ADHOC:
8111 case NL80211_IFTYPE_P2P_CLIENT:
8112 case NL80211_IFTYPE_AP:
8113 case NL80211_IFTYPE_AP_VLAN:
8114 case NL80211_IFTYPE_P2P_GO:
98104fde 8115 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8116 break;
8117 default:
f7ca38df 8118 return -EOPNOTSUPP;
71bbc994 8119 }
f7ca38df
JB		 8120
8121 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8122
e35e4d28 8123 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8124}
8125
ffb9eb3d
KV		 8126static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8127{
4c476991 8128 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8129 struct wireless_dev *wdev;
4c476991 8130 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8131 u8 ps_state;
8132 bool state;
8133 int err;
8134
4c476991
JB		 8135 if (!info->attrs[NL80211_ATTR_PS_STATE])
8136 return -EINVAL;
ffb9eb3d
KV		 8137
8138 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8139
4c476991
JB		 8140 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8141 return -EINVAL;
ffb9eb3d
KV		 8142
8143 wdev = dev->ieee80211_ptr;
8144
4c476991
JB		 8145 if (!rdev->ops->set_power_mgmt)
8146 return -EOPNOTSUPP;
ffb9eb3d
KV		 8147
8148 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8149
8150 if (state == wdev->ps)
4c476991 8151 return 0;
ffb9eb3d 8152
e35e4d28 8153 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8154 if (!err)
8155 wdev->ps = state;
ffb9eb3d
KV		 8156 return err;
8157}
8158
8159static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8160{
4c476991 8161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8162 enum nl80211_ps_state ps_state;
8163 struct wireless_dev *wdev;
4c476991 8164 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8165 struct sk_buff *msg;
8166 void *hdr;
8167 int err;
8168
ffb9eb3d
KV		 8169 wdev = dev->ieee80211_ptr;
8170
4c476991
JB		 8171 if (!rdev->ops->set_power_mgmt)
8172 return -EOPNOTSUPP;
ffb9eb3d
KV		 8173
8174 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8175 if (!msg)
8176 return -ENOMEM;
ffb9eb3d 8177
15e47304 8178 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8179 NL80211_CMD_GET_POWER_SAVE);
8180 if (!hdr) {
4c476991 8181 err = -ENOBUFS;
ffb9eb3d
KV		 8182 goto free_msg;
8183 }
8184
8185 if (wdev->ps)
8186 ps_state = NL80211_PS_ENABLED;
8187 else
8188 ps_state = NL80211_PS_DISABLED;
8189
9360ffd1
DM		 8190 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8191 goto nla_put_failure;
ffb9eb3d
KV		 8192
8193 genlmsg_end(msg, hdr);
4c476991 8194 return genlmsg_reply(msg, info);
ffb9eb3d 8195
4c476991 8196 nla_put_failure:
ffb9eb3d 8197 err = -ENOBUFS;
4c476991 8198 free_msg:
ffb9eb3d 8199 nlmsg_free(msg);
ffb9eb3d
KV		 8200 return err;
8201}
8202
94e860f1
JB		 8203static const struct nla_policy
8204nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8205 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8206 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8207 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8208 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8209 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8210 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8211};
8212
84f10708 8213static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8214 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8215{
8216 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8217 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8218 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8219
d9d8b019 8220 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8221 return -EINVAL;
8222
84f10708
TP		 8223 if (!rdev->ops->set_cqm_txe_config)
8224 return -EOPNOTSUPP;
8225
8226 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8227 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8228 return -EOPNOTSUPP;
8229
e35e4d28 8230 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8231}
8232
d6dc1a38
JO		 8233static int nl80211_set_cqm_rssi(struct genl_info *info,
8234 s32 threshold, u32 hysteresis)
8235{
4c476991 8236 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8237 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8238 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8239
8240 if (threshold > 0)
8241 return -EINVAL;
8242
1da5fcc8
JB		 8243 /* disabling - hysteresis should also be zero then */
8244 if (threshold == 0)
8245 hysteresis = 0;
d6dc1a38 8246
4c476991
JB		 8247 if (!rdev->ops->set_cqm_rssi_config)
8248 return -EOPNOTSUPP;
d6dc1a38 8249
074ac8df 8250 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8251 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8252 return -EOPNOTSUPP;
d6dc1a38 8253
e35e4d28 8254 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8255}
8256
8257static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8258{
8259 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8260 struct nlattr *cqm;
8261 int err;
8262
8263 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8264 if (!cqm)
8265 return -EINVAL;
d6dc1a38
JO		 8266
8267 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8268 nl80211_attr_cqm_policy);
8269 if (err)
1da5fcc8 8270 return err;
d6dc1a38
JO		 8271
8272 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8273 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8274 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8275 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8276
1da5fcc8
JB		 8277 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8278 }
8279
8280 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8281 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8282 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8283 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8284 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8285 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8286
8287 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8288 }
8289
8290 return -EINVAL;
d6dc1a38
JO		 8291}
8292
6e0bd6c3
RL		 8293static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8294{
8295 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8296 struct net_device *dev = info->user_ptr[1];
8297 struct ocb_setup setup = {};
8298 int err;
8299
8300 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8301 if (err)
8302 return err;
8303
8304 return cfg80211_join_ocb(rdev, dev, &setup);
8305}
8306
8307static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8308{
8309 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8310 struct net_device *dev = info->user_ptr[1];
8311
8312 return cfg80211_leave_ocb(rdev, dev);
8313}
8314
29cbe68c
JB		 8315static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8316{
8317 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8318 struct net_device *dev = info->user_ptr[1];
8319 struct mesh_config cfg;
c80d545d 8320 struct mesh_setup setup;
29cbe68c
JB		 8321 int err;
8322
8323 /* start with default */
8324 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8325 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8326
24bdd9f4 8327 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8328 /* and parse parameters if given */
24bdd9f4 8329 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8330 if (err)
8331 return err;
8332 }
8333
8334 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8335 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8336 return -EINVAL;
8337
c80d545d
JC		 8338 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8339 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8340
4bb62344
CYY		 8341 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8342 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8343 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8344 return -EINVAL;
8345
9bdbf04d
MP		 8346 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8347 setup.beacon_interval =
8348 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8349 if (setup.beacon_interval < 10 ||
8350 setup.beacon_interval > 10000)
8351 return -EINVAL;
8352 }
8353
8354 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8355 setup.dtim_period =
8356 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8357 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8358 return -EINVAL;
8359 }
8360
c80d545d
JC		 8361 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8362 /* parse additional setup parameters if given */
8363 err = nl80211_parse_mesh_setup(info, &setup);
8364 if (err)
8365 return err;
8366 }
8367
d37bb18a
TP		 8368 if (setup.user_mpm)
8369 cfg.auto_open_plinks = false;
8370
cc1d2806 8371 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8372 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8373 if (err)
8374 return err;
cc1d2806
JB		 8375 } else {
8376 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8377 setup.chandef.chan = NULL;
cc1d2806
JB		 8378 }
8379
ffb3cf30
AN		 8380 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8381 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8382 int n_rates =
8383 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8384 struct ieee80211_supported_band *sband;
8385
8386 if (!setup.chandef.chan)
8387 return -EINVAL;
8388
8389 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8390
8391 err = ieee80211_get_ratemask(sband, rates, n_rates,
8392 &setup.basic_rates);
8393 if (err)
8394 return err;
8395 }
8396
c80d545d 8397 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8398}
8399
8400static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8401{
8402 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8403 struct net_device *dev = info->user_ptr[1];
8404
8405 return cfg80211_leave_mesh(rdev, dev);
8406}
8407
dfb89c56 8408#ifdef CONFIG_PM
bb92d199
AK		 8409static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8410 struct cfg80211_registered_device *rdev)
8411{
6abb9cb9 8412 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8413 struct nlattr *nl_pats, *nl_pat;
8414 int i, pat_len;
8415
6abb9cb9 8416 if (!wowlan->n_patterns)
bb92d199
AK		 8417 return 0;
8418
8419 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8420 if (!nl_pats)
8421 return -ENOBUFS;
8422
6abb9cb9 8423 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8424 nl_pat = nla_nest_start(msg, i + 1);
8425 if (!nl_pat)
8426 return -ENOBUFS;
6abb9cb9 8427 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8428 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8429 wowlan->patterns[i].mask) ||
50ac6607
AK		 8430 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8431 wowlan->patterns[i].pattern) ||
8432 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8433 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8434 return -ENOBUFS;
8435 nla_nest_end(msg, nl_pat);
8436 }
8437 nla_nest_end(msg, nl_pats);
8438
8439 return 0;
8440}
8441
2a0e047e
JB		 8442static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8443 struct cfg80211_wowlan_tcp *tcp)
8444{
8445 struct nlattr *nl_tcp;
8446
8447 if (!tcp)
8448 return 0;
8449
8450 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8451 if (!nl_tcp)
8452 return -ENOBUFS;
8453
8454 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8455 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8456 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8457 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8458 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8459 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8460 tcp->payload_len, tcp->payload) ||
8461 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8462 tcp->data_interval) ||
8463 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8464 tcp->wake_len, tcp->wake_data) ||
8465 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8466 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8467 return -ENOBUFS;
8468
8469 if (tcp->payload_seq.len &&
8470 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8471 sizeof(tcp->payload_seq), &tcp->payload_seq))
8472 return -ENOBUFS;
8473
8474 if (tcp->payload_tok.len &&
8475 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8476 sizeof(tcp->payload_tok) + tcp->tokens_size,
8477 &tcp->payload_tok))
8478 return -ENOBUFS;
8479
e248ad30
JB		 8480 nla_nest_end(msg, nl_tcp);
8481
2a0e047e
JB		 8482 return 0;
8483}
8484
ff1b6e69
JB		 8485static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8486{
8487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8488 struct sk_buff *msg;
8489 void *hdr;
2a0e047e 8490 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8491
964dc9e2 8492 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8493 return -EOPNOTSUPP;
8494
6abb9cb9 8495 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8496 /* adjust size to have room for all the data */
6abb9cb9
JB		 8497 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8498 rdev->wiphy.wowlan_config->tcp->payload_len +
8499 rdev->wiphy.wowlan_config->tcp->wake_len +
8500 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8501 }
8502
8503 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8504 if (!msg)
8505 return -ENOMEM;
8506
15e47304 8507 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8508 NL80211_CMD_GET_WOWLAN);
8509 if (!hdr)
8510 goto nla_put_failure;
8511
6abb9cb9 8512 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8513 struct nlattr *nl_wowlan;
8514
8515 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8516 if (!nl_wowlan)
8517 goto nla_put_failure;
8518
6abb9cb9 8519 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8520 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8521 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8522 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8523 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8524 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8525 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8526 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8527 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8528 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8529 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8530 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8531 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8532 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8533 goto nla_put_failure;
2a0e047e 8534
bb92d199
AK		 8535 if (nl80211_send_wowlan_patterns(msg, rdev))
8536 goto nla_put_failure;
2a0e047e 8537
6abb9cb9
JB		 8538 if (nl80211_send_wowlan_tcp(msg,
8539 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8540 goto nla_put_failure;
8541
ff1b6e69
JB		 8542 nla_nest_end(msg, nl_wowlan);
8543 }
8544
8545 genlmsg_end(msg, hdr);
8546 return genlmsg_reply(msg, info);
8547
8548nla_put_failure:
8549 nlmsg_free(msg);
8550 return -ENOBUFS;
8551}
8552
2a0e047e
JB		 8553static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8554 struct nlattr *attr,
8555 struct cfg80211_wowlan *trig)
8556{
8557 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8558 struct cfg80211_wowlan_tcp *cfg;
8559 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8560 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8561 u32 size;
8562 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8563 int err, port;
8564
964dc9e2 8565 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8566 return -EINVAL;
8567
8568 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8569 nla_data(attr), nla_len(attr),
8570 nl80211_wowlan_tcp_policy);
8571 if (err)
8572 return err;
8573
8574 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8575 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8576 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8577 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8578 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8579 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8580 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8581 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8582 return -EINVAL;
8583
8584 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8585 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8586 return -EINVAL;
8587
8588 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8589 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8590 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8591 return -EINVAL;
8592
8593 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8594 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8595 return -EINVAL;
8596
8597 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8598 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8599 return -EINVAL;
8600
8601 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8602 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8603
8604 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8605 tokens_size = tokln - sizeof(*tok);
8606
8607 if (!tok->len || tokens_size % tok->len)
8608 return -EINVAL;
964dc9e2 8609 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8610 return -EINVAL;
964dc9e2 8611 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8612 return -EINVAL;
964dc9e2 8613 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8614 return -EINVAL;
964dc9e2 8615 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8616 return -EINVAL;
8617 if (tok->offset + tok->len > data_size)
8618 return -EINVAL;
8619 }
8620
8621 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8622 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8623 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8624 return -EINVAL;
8625 if (seq->len == 0 || seq->len > 4)
8626 return -EINVAL;
8627 if (seq->len + seq->offset > data_size)
8628 return -EINVAL;
8629 }
8630
8631 size = sizeof(*cfg);
8632 size += data_size;
8633 size += wake_size + wake_mask_size;
8634 size += tokens_size;
8635
8636 cfg = kzalloc(size, GFP_KERNEL);
8637 if (!cfg)
8638 return -ENOMEM;
8639 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8640 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8641 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8642 ETH_ALEN);
8643 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8644 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8645 else
8646 port = 0;
8647#ifdef CONFIG_INET
8648 /* allocate a socket and port for it and use it */
8649 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8650 IPPROTO_TCP, &cfg->sock, 1);
8651 if (err) {
8652 kfree(cfg);
8653 return err;
8654 }
8655 if (inet_csk_get_port(cfg->sock->sk, port)) {
8656 sock_release(cfg->sock);
8657 kfree(cfg);
8658 return -EADDRINUSE;
8659 }
8660 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8661#else
8662 if (!port) {
8663 kfree(cfg);
8664 return -EINVAL;
8665 }
8666 cfg->src_port = port;
8667#endif
8668
8669 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8670 cfg->payload_len = data_size;
8671 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8672 memcpy((void *)cfg->payload,
8673 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8674 data_size);
8675 if (seq)
8676 cfg->payload_seq = *seq;
8677 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8678 cfg->wake_len = wake_size;
8679 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8680 memcpy((void *)cfg->wake_data,
8681 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8682 wake_size);
8683 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8684 data_size + wake_size;
8685 memcpy((void *)cfg->wake_mask,
8686 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8687 wake_mask_size);
8688 if (tok) {
8689 cfg->tokens_size = tokens_size;
8690 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8691 }
8692
8693 trig->tcp = cfg;
8694
8695 return 0;
8696}
8697
ff1b6e69
JB		 8698static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8699{
8700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8701 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8702 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8703 struct cfg80211_wowlan *ntrig;
964dc9e2 8704 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8705 int err, i;
6abb9cb9 8706 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8707
964dc9e2 8708 if (!wowlan)
ff1b6e69
JB		 8709 return -EOPNOTSUPP;
8710
ae33bd81
JB		 8711 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8712 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8713 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8714 goto set_wakeup;
8715 }
ff1b6e69
JB		 8716
8717 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8718 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8719 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8720 nl80211_wowlan_policy);
8721 if (err)
8722 return err;
8723
8724 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8725 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8726 return -EINVAL;
8727 new_triggers.any = true;
8728 }
8729
8730 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8731 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8732 return -EINVAL;
8733 new_triggers.disconnect = true;
8734 }
8735
8736 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8737 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8738 return -EINVAL;
8739 new_triggers.magic_pkt = true;
8740 }
8741
77dbbb13
JB		 8742 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8743 return -EINVAL;
8744
8745 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8746 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8747 return -EINVAL;
8748 new_triggers.gtk_rekey_failure = true;
8749 }
8750
8751 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8752 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8753 return -EINVAL;
8754 new_triggers.eap_identity_req = true;
8755 }
8756
8757 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8758 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8759 return -EINVAL;
8760 new_triggers.four_way_handshake = true;
8761 }
8762
8763 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8764 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8765 return -EINVAL;
8766 new_triggers.rfkill_release = true;
8767 }
8768
ff1b6e69
JB		 8769 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8770 struct nlattr *pat;
8771 int n_patterns = 0;
bb92d199 8772 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8773 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8774
8775 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8776 rem)
8777 n_patterns++;
8778 if (n_patterns > wowlan->n_patterns)
8779 return -EINVAL;
8780
8781 new_triggers.patterns = kcalloc(n_patterns,
8782 sizeof(new_triggers.patterns[0]),
8783 GFP_KERNEL);
8784 if (!new_triggers.patterns)
8785 return -ENOMEM;
8786
8787 new_triggers.n_patterns = n_patterns;
8788 i = 0;
8789
8790 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8791 rem) {
922bd80f
JB		 8792 u8 *mask_pat;
8793
50ac6607
AK		 8794 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8795 nla_len(pat), NULL);
ff1b6e69 8796 err = -EINVAL;
50ac6607
AK		 8797 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8798 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8799 goto error;
50ac6607 8800 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8801 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8802 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8803 goto error;
8804 if (pat_len > wowlan->pattern_max_len ||
8805 pat_len < wowlan->pattern_min_len)
8806 goto error;
8807
50ac6607 8808 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8809 pkt_offset = 0;
8810 else
8811 pkt_offset = nla_get_u32(
50ac6607 8812 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8813 if (pkt_offset > wowlan->max_pkt_offset)
8814 goto error;
8815 new_triggers.patterns[i].pkt_offset = pkt_offset;
8816
922bd80f
JB		 8817 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8818 if (!mask_pat) {
ff1b6e69
JB		 8819 err = -ENOMEM;
8820 goto error;
8821 }
922bd80f
JB		 8822 new_triggers.patterns[i].mask = mask_pat;
8823 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 8824 mask_len);
922bd80f
JB		 8825 mask_pat += mask_len;
8826 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 8827 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 8828 memcpy(mask_pat,
50ac6607 8829 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8830 pat_len);
8831 i++;
8832 }
8833 }
8834
2a0e047e
JB		 8835 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8836 err = nl80211_parse_wowlan_tcp(
8837 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8838 &new_triggers);
8839 if (err)
8840 goto error;
8841 }
8842
ae33bd81
JB		 8843 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8844 if (!ntrig) {
8845 err = -ENOMEM;
8846 goto error;
ff1b6e69 8847 }
ae33bd81 8848 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8849 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8850
ae33bd81 8851 set_wakeup:
6abb9cb9
JB		 8852 if (rdev->ops->set_wakeup &&
8853 prev_enabled != !!rdev->wiphy.wowlan_config)
8854 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8855
ff1b6e69
JB		 8856 return 0;
8857 error:
8858 for (i = 0; i < new_triggers.n_patterns; i++)
8859 kfree(new_triggers.patterns[i].mask);
8860 kfree(new_triggers.patterns);
2a0e047e
JB		 8861 if (new_triggers.tcp && new_triggers.tcp->sock)
8862 sock_release(new_triggers.tcp->sock);
8863 kfree(new_triggers.tcp);
ff1b6e69
JB		 8864 return err;
8865}
dfb89c56 8866#endif
ff1b6e69 8867
be29b99a
AK		 8868static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8869 struct cfg80211_registered_device *rdev)
8870{
8871 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8872 int i, j, pat_len;
8873 struct cfg80211_coalesce_rules *rule;
8874
8875 if (!rdev->coalesce->n_rules)
8876 return 0;
8877
8878 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8879 if (!nl_rules)
8880 return -ENOBUFS;
8881
8882 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8883 nl_rule = nla_nest_start(msg, i + 1);
8884 if (!nl_rule)
8885 return -ENOBUFS;
8886
8887 rule = &rdev->coalesce->rules[i];
8888 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8889 rule->delay))
8890 return -ENOBUFS;
8891
8892 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8893 rule->condition))
8894 return -ENOBUFS;
8895
8896 nl_pats = nla_nest_start(msg,
8897 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8898 if (!nl_pats)
8899 return -ENOBUFS;
8900
8901 for (j = 0; j < rule->n_patterns; j++) {
8902 nl_pat = nla_nest_start(msg, j + 1);
8903 if (!nl_pat)
8904 return -ENOBUFS;
8905 pat_len = rule->patterns[j].pattern_len;
8906 if (nla_put(msg, NL80211_PKTPAT_MASK,
8907 DIV_ROUND_UP(pat_len, 8),
8908 rule->patterns[j].mask) ||
8909 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8910 rule->patterns[j].pattern) ||
8911 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8912 rule->patterns[j].pkt_offset))
8913 return -ENOBUFS;
8914 nla_nest_end(msg, nl_pat);
8915 }
8916 nla_nest_end(msg, nl_pats);
8917 nla_nest_end(msg, nl_rule);
8918 }
8919 nla_nest_end(msg, nl_rules);
8920
8921 return 0;
8922}
8923
8924static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8925{
8926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8927 struct sk_buff *msg;
8928 void *hdr;
8929
8930 if (!rdev->wiphy.coalesce)
8931 return -EOPNOTSUPP;
8932
8933 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8934 if (!msg)
8935 return -ENOMEM;
8936
8937 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8938 NL80211_CMD_GET_COALESCE);
8939 if (!hdr)
8940 goto nla_put_failure;
8941
8942 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8943 goto nla_put_failure;
8944
8945 genlmsg_end(msg, hdr);
8946 return genlmsg_reply(msg, info);
8947
8948nla_put_failure:
8949 nlmsg_free(msg);
8950 return -ENOBUFS;
8951}
8952
8953void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8954{
8955 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8956 int i, j;
8957 struct cfg80211_coalesce_rules *rule;
8958
8959 if (!coalesce)
8960 return;
8961
8962 for (i = 0; i < coalesce->n_rules; i++) {
8963 rule = &coalesce->rules[i];
8964 for (j = 0; j < rule->n_patterns; j++)
8965 kfree(rule->patterns[j].mask);
8966 kfree(rule->patterns);
8967 }
8968 kfree(coalesce->rules);
8969 kfree(coalesce);
8970 rdev->coalesce = NULL;
8971}
8972
8973static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8974 struct nlattr *rule,
8975 struct cfg80211_coalesce_rules *new_rule)
8976{
8977 int err, i;
8978 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8979 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8980 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8981 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8982
8983 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8984 nla_len(rule), nl80211_coalesce_policy);
8985 if (err)
8986 return err;
8987
8988 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8989 new_rule->delay =
8990 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8991 if (new_rule->delay > coalesce->max_delay)
8992 return -EINVAL;
8993
8994 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8995 new_rule->condition =
8996 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8997 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8998 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8999 return -EINVAL;
9000
9001 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9002 return -EINVAL;
9003
9004 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9005 rem)
9006 n_patterns++;
9007 if (n_patterns > coalesce->n_patterns)
9008 return -EINVAL;
9009
9010 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9011 GFP_KERNEL);
9012 if (!new_rule->patterns)
9013 return -ENOMEM;
9014
9015 new_rule->n_patterns = n_patterns;
9016 i = 0;
9017
9018 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9019 rem) {
922bd80f
JB		 9020 u8 *mask_pat;
9021
be29b99a
AK		 9022 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9023 nla_len(pat), NULL);
9024 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9025 !pat_tb[NL80211_PKTPAT_PATTERN])
9026 return -EINVAL;
9027 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9028 mask_len = DIV_ROUND_UP(pat_len, 8);
9029 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9030 return -EINVAL;
9031 if (pat_len > coalesce->pattern_max_len ||
9032 pat_len < coalesce->pattern_min_len)
9033 return -EINVAL;
9034
9035 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9036 pkt_offset = 0;
9037 else
9038 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9039 if (pkt_offset > coalesce->max_pkt_offset)
9040 return -EINVAL;
9041 new_rule->patterns[i].pkt_offset = pkt_offset;
9042
922bd80f
JB		 9043 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9044 if (!mask_pat)
be29b99a 9045 return -ENOMEM;
922bd80f
JB		 9046
9047 new_rule->patterns[i].mask = mask_pat;
9048 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9049 mask_len);
9050
9051 mask_pat += mask_len;
9052 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9053 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9054 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9055 pat_len);
be29b99a
AK		 9056 i++;
9057 }
9058
9059 return 0;
9060}
9061
9062static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9063{
9064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9065 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9066 struct cfg80211_coalesce new_coalesce = {};
9067 struct cfg80211_coalesce *n_coalesce;
9068 int err, rem_rule, n_rules = 0, i, j;
9069 struct nlattr *rule;
9070 struct cfg80211_coalesce_rules *tmp_rule;
9071
9072 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9073 return -EOPNOTSUPP;
9074
9075 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9076 cfg80211_rdev_free_coalesce(rdev);
9077 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9078 return 0;
9079 }
9080
9081 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9082 rem_rule)
9083 n_rules++;
9084 if (n_rules > coalesce->n_rules)
9085 return -EINVAL;
9086
9087 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9088 GFP_KERNEL);
9089 if (!new_coalesce.rules)
9090 return -ENOMEM;
9091
9092 new_coalesce.n_rules = n_rules;
9093 i = 0;
9094
9095 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9096 rem_rule) {
9097 err = nl80211_parse_coalesce_rule(rdev, rule,
9098 &new_coalesce.rules[i]);
9099 if (err)
9100 goto error;
9101
9102 i++;
9103 }
9104
9105 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9106 if (err)
9107 goto error;
9108
9109 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9110 if (!n_coalesce) {
9111 err = -ENOMEM;
9112 goto error;
9113 }
9114 cfg80211_rdev_free_coalesce(rdev);
9115 rdev->coalesce = n_coalesce;
9116
9117 return 0;
9118error:
9119 for (i = 0; i < new_coalesce.n_rules; i++) {
9120 tmp_rule = &new_coalesce.rules[i];
9121 for (j = 0; j < tmp_rule->n_patterns; j++)
9122 kfree(tmp_rule->patterns[j].mask);
9123 kfree(tmp_rule->patterns);
9124 }
9125 kfree(new_coalesce.rules);
9126
9127 return err;
9128}
9129
e5497d76
JB		 9130static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9131{
9132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9133 struct net_device *dev = info->user_ptr[1];
9134 struct wireless_dev *wdev = dev->ieee80211_ptr;
9135 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9136 struct cfg80211_gtk_rekey_data rekey_data;
9137 int err;
9138
9139 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9140 return -EINVAL;
9141
9142 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9143 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9144 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9145 nl80211_rekey_policy);
9146 if (err)
9147 return err;
9148
9149 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9150 return -ERANGE;
9151 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9152 return -ERANGE;
9153 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9154 return -ERANGE;
9155
78f686ca
JB		 9156 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9157 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9158 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9159
9160 wdev_lock(wdev);
9161 if (!wdev->current_bss) {
9162 err = -ENOTCONN;
9163 goto out;
9164 }
9165
9166 if (!rdev->ops->set_rekey_data) {
9167 err = -EOPNOTSUPP;
9168 goto out;
9169 }
9170
e35e4d28 9171 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9172 out:
9173 wdev_unlock(wdev);
9174 return err;
9175}
9176
28946da7
JB		 9177static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9178 struct genl_info *info)
9179{
9180 struct net_device *dev = info->user_ptr[1];
9181 struct wireless_dev *wdev = dev->ieee80211_ptr;
9182
9183 if (wdev->iftype != NL80211_IFTYPE_AP &&
9184 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9185 return -EINVAL;
9186
15e47304 9187 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9188 return -EBUSY;
9189
15e47304 9190 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9191 return 0;
9192}
9193
7f6cf311
JB		 9194static int nl80211_probe_client(struct sk_buff *skb,
9195 struct genl_info *info)
9196{
9197 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9198 struct net_device *dev = info->user_ptr[1];
9199 struct wireless_dev *wdev = dev->ieee80211_ptr;
9200 struct sk_buff *msg;
9201 void *hdr;
9202 const u8 *addr;
9203 u64 cookie;
9204 int err;
9205
9206 if (wdev->iftype != NL80211_IFTYPE_AP &&
9207 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9208 return -EOPNOTSUPP;
9209
9210 if (!info->attrs[NL80211_ATTR_MAC])
9211 return -EINVAL;
9212
9213 if (!rdev->ops->probe_client)
9214 return -EOPNOTSUPP;
9215
9216 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9217 if (!msg)
9218 return -ENOMEM;
9219
15e47304 9220 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9221 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9222 if (!hdr) {
9223 err = -ENOBUFS;
7f6cf311
JB		 9224 goto free_msg;
9225 }
9226
9227 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9228
e35e4d28 9229 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9230 if (err)
9231 goto free_msg;
9232
9360ffd1
DM		 9233 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9234 goto nla_put_failure;
7f6cf311
JB		 9235
9236 genlmsg_end(msg, hdr);
9237
9238 return genlmsg_reply(msg, info);
9239
9240 nla_put_failure:
9241 err = -ENOBUFS;
9242 free_msg:
9243 nlmsg_free(msg);
9244 return err;
9245}
9246
5e760230
JB		 9247static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9248{
9249 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9250 struct cfg80211_beacon_registration *reg, *nreg;
9251 int rv;
5e760230
JB		 9252
9253 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9254 return -EOPNOTSUPP;
9255
37c73b5f
BG		 9256 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9257 if (!nreg)
9258 return -ENOMEM;
9259
9260 /* First, check if already registered. */
9261 spin_lock_bh(&rdev->beacon_registrations_lock);
9262 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9263 if (reg->nlportid == info->snd_portid) {
9264 rv = -EALREADY;
9265 goto out_err;
9266 }
9267 }
9268 /* Add it to the list */
9269 nreg->nlportid = info->snd_portid;
9270 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9271
37c73b5f 9272 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9273
9274 return 0;
37c73b5f
BG		 9275out_err:
9276 spin_unlock_bh(&rdev->beacon_registrations_lock);
9277 kfree(nreg);
9278 return rv;
5e760230
JB		 9279}
9280
98104fde
JB		 9281static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9282{
9283 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9284 struct wireless_dev *wdev = info->user_ptr[1];
9285 int err;
9286
9287 if (!rdev->ops->start_p2p_device)
9288 return -EOPNOTSUPP;
9289
9290 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9291 return -EOPNOTSUPP;
9292
9293 if (wdev->p2p_started)
9294 return 0;
9295
b6a55015
LC		 9296 if (rfkill_blocked(rdev->rfkill))
9297 return -ERFKILL;
98104fde 9298
eeb126e9 9299 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9300 if (err)
9301 return err;
9302
9303 wdev->p2p_started = true;
98104fde 9304 rdev->opencount++;
98104fde
JB		 9305
9306 return 0;
9307}
9308
9309static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9310{
9311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9312 struct wireless_dev *wdev = info->user_ptr[1];
9313
9314 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9315 return -EOPNOTSUPP;
9316
9317 if (!rdev->ops->stop_p2p_device)
9318 return -EOPNOTSUPP;
9319
f9f47529 9320 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9321
9322 return 0;
9323}
9324
3713b4e3
JB		 9325static int nl80211_get_protocol_features(struct sk_buff *skb,
9326 struct genl_info *info)
9327{
9328 void *hdr;
9329 struct sk_buff *msg;
9330
9331 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9332 if (!msg)
9333 return -ENOMEM;
9334
9335 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9336 NL80211_CMD_GET_PROTOCOL_FEATURES);
9337 if (!hdr)
9338 goto nla_put_failure;
9339
9340 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9341 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9342 goto nla_put_failure;
9343
9344 genlmsg_end(msg, hdr);
9345 return genlmsg_reply(msg, info);
9346
9347 nla_put_failure:
9348 kfree_skb(msg);
9349 return -ENOBUFS;
9350}
9351
355199e0
JM		 9352static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9353{
9354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9355 struct cfg80211_update_ft_ies_params ft_params;
9356 struct net_device *dev = info->user_ptr[1];
9357
9358 if (!rdev->ops->update_ft_ies)
9359 return -EOPNOTSUPP;
9360
9361 if (!info->attrs[NL80211_ATTR_MDID] ||
9362 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9363 return -EINVAL;
9364
9365 memset(&ft_params, 0, sizeof(ft_params));
9366 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9367 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9368 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9369
9370 return rdev_update_ft_ies(rdev, dev, &ft_params);
9371}
9372
5de17984
AS		 9373static int nl80211_crit_protocol_start(struct sk_buff *skb,
9374 struct genl_info *info)
9375{
9376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9377 struct wireless_dev *wdev = info->user_ptr[1];
9378 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9379 u16 duration;
9380 int ret;
9381
9382 if (!rdev->ops->crit_proto_start)
9383 return -EOPNOTSUPP;
9384
9385 if (WARN_ON(!rdev->ops->crit_proto_stop))
9386 return -EINVAL;
9387
9388 if (rdev->crit_proto_nlportid)
9389 return -EBUSY;
9390
9391 /* determine protocol if provided */
9392 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9393 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9394
9395 if (proto >= NUM_NL80211_CRIT_PROTO)
9396 return -EINVAL;
9397
9398 /* timeout must be provided */
9399 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9400 return -EINVAL;
9401
9402 duration =
9403 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9404
9405 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9406 return -ERANGE;
9407
9408 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9409 if (!ret)
9410 rdev->crit_proto_nlportid = info->snd_portid;
9411
9412 return ret;
9413}
9414
9415static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9416 struct genl_info *info)
9417{
9418 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9419 struct wireless_dev *wdev = info->user_ptr[1];
9420
9421 if (!rdev->ops->crit_proto_stop)
9422 return -EOPNOTSUPP;
9423
9424 if (rdev->crit_proto_nlportid) {
9425 rdev->crit_proto_nlportid = 0;
9426 rdev_crit_proto_stop(rdev, wdev);
9427 }
9428 return 0;
9429}
9430
ad7e718c
JB		 9431static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9432{
9433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9434 struct wireless_dev *wdev =
9435 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9436 int i, err;
9437 u32 vid, subcmd;
9438
9439 if (!rdev->wiphy.vendor_commands)
9440 return -EOPNOTSUPP;
9441
9442 if (IS_ERR(wdev)) {
9443 err = PTR_ERR(wdev);
9444 if (err != -EINVAL)
9445 return err;
9446 wdev = NULL;
9447 } else if (wdev->wiphy != &rdev->wiphy) {
9448 return -EINVAL;
9449 }
9450
9451 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9452 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9453 return -EINVAL;
9454
9455 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9456 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9457 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9458 const struct wiphy_vendor_command *vcmd;
9459 void *data = NULL;
9460 int len = 0;
9461
9462 vcmd = &rdev->wiphy.vendor_commands[i];
9463
9464 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9465 continue;
9466
9467 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9468 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9469 if (!wdev)
9470 return -EINVAL;
9471 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9472 !wdev->netdev)
9473 return -EINVAL;
9474
9475 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9476 if (wdev->netdev &&
9477 !netif_running(wdev->netdev))
9478 return -ENETDOWN;
9479 if (!wdev->netdev && !wdev->p2p_started)
9480 return -ENETDOWN;
9481 }
9482 } else {
9483 wdev = NULL;
9484 }
9485
9486 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9487 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9488 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9489 }
9490
9491 rdev->cur_cmd_info = info;
9492 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9493 data, len);
9494 rdev->cur_cmd_info = NULL;
9495 return err;
9496 }
9497
9498 return -EOPNOTSUPP;
9499}
9500
9501struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9502 enum nl80211_commands cmd,
9503 enum nl80211_attrs attr,
9504 int approxlen)
9505{
f26cbf40 9506 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9507
9508 if (WARN_ON(!rdev->cur_cmd_info))
9509 return NULL;
9510
9511 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9512 rdev->cur_cmd_info->snd_portid,
9513 rdev->cur_cmd_info->snd_seq,
567ffc35 9514 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9515}
9516EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9517
9518int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9519{
9520 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9521 void *hdr = ((void **)skb->cb)[1];
9522 struct nlattr *data = ((void **)skb->cb)[2];
9523
bd8c78e7
JB		 9524 /* clear CB data for netlink core to own from now on */
9525 memset(skb->cb, 0, sizeof(skb->cb));
9526
ad7e718c
JB		 9527 if (WARN_ON(!rdev->cur_cmd_info)) {
9528 kfree_skb(skb);
9529 return -EINVAL;
9530 }
9531
9532 nla_nest_end(skb, data);
9533 genlmsg_end(skb, hdr);
9534 return genlmsg_reply(skb, rdev->cur_cmd_info);
9535}
9536EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9537
9538
fa9ffc74
KP		 9539static int nl80211_set_qos_map(struct sk_buff *skb,
9540 struct genl_info *info)
9541{
9542 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9543 struct cfg80211_qos_map *qos_map = NULL;
9544 struct net_device *dev = info->user_ptr[1];
9545 u8 *pos, len, num_des, des_len, des;
9546 int ret;
9547
9548 if (!rdev->ops->set_qos_map)
9549 return -EOPNOTSUPP;
9550
9551 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9552 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9553 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9554
9555 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9556 len > IEEE80211_QOS_MAP_LEN_MAX)
9557 return -EINVAL;
9558
9559 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9560 if (!qos_map)
9561 return -ENOMEM;
9562
9563 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9564 if (num_des) {
9565 des_len = num_des *
9566 sizeof(struct cfg80211_dscp_exception);
9567 memcpy(qos_map->dscp_exception, pos, des_len);
9568 qos_map->num_des = num_des;
9569 for (des = 0; des < num_des; des++) {
9570 if (qos_map->dscp_exception[des].up > 7) {
9571 kfree(qos_map);
9572 return -EINVAL;
9573 }
9574 }
9575 pos += des_len;
9576 }
9577 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9578 }
9579
9580 wdev_lock(dev->ieee80211_ptr);
9581 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9582 if (!ret)
9583 ret = rdev_set_qos_map(rdev, dev, qos_map);
9584 wdev_unlock(dev->ieee80211_ptr);
9585
9586 kfree(qos_map);
9587 return ret;
9588}
9589
960d01ac
JB		 9590static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9591{
9592 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9593 struct net_device *dev = info->user_ptr[1];
9594 struct wireless_dev *wdev = dev->ieee80211_ptr;
9595 const u8 *peer;
9596 u8 tsid, up;
9597 u16 admitted_time = 0;
9598 int err;
9599
723e73ac 9600 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 9601 return -EOPNOTSUPP;
9602
9603 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9604 !info->attrs[NL80211_ATTR_USER_PRIO])
9605 return -EINVAL;
9606
9607 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9608 if (tsid >= IEEE80211_NUM_TIDS)
9609 return -EINVAL;
9610
9611 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9612 if (up >= IEEE80211_NUM_UPS)
9613 return -EINVAL;
9614
9615 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 9616 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 9617 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 9618 * need more attributes for that (e.g. BA session requirement);
9619 * change the WMM adminssion test above to allow both then
960d01ac
JB		 9620 */
9621 return -EINVAL;
9622 }
9623
9624 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9625
9626 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9627 admitted_time =
9628 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
9629 if (!admitted_time)
9630 return -EINVAL;
9631 }
9632
9633 wdev_lock(wdev);
9634 switch (wdev->iftype) {
9635 case NL80211_IFTYPE_STATION:
9636 case NL80211_IFTYPE_P2P_CLIENT:
9637 if (wdev->current_bss)
9638 break;
9639 err = -ENOTCONN;
9640 goto out;
9641 default:
9642 err = -EOPNOTSUPP;
9643 goto out;
9644 }
9645
9646 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
9647
9648 out:
9649 wdev_unlock(wdev);
9650 return err;
9651}
9652
9653static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
9654{
9655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9656 struct net_device *dev = info->user_ptr[1];
9657 struct wireless_dev *wdev = dev->ieee80211_ptr;
9658 const u8 *peer;
9659 u8 tsid;
9660 int err;
9661
9662 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
9663 return -EINVAL;
9664
9665 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9666 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9667
9668 wdev_lock(wdev);
9669 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
9670 wdev_unlock(wdev);
9671
9672 return err;
9673}
9674
1057d35e
AN		 9675static int nl80211_tdls_channel_switch(struct sk_buff *skb,
9676 struct genl_info *info)
9677{
9678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9679 struct net_device *dev = info->user_ptr[1];
9680 struct wireless_dev *wdev = dev->ieee80211_ptr;
9681 struct cfg80211_chan_def chandef = {};
9682 const u8 *addr;
9683 u8 oper_class;
9684 int err;
9685
9686 if (!rdev->ops->tdls_channel_switch ||
9687 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9688 return -EOPNOTSUPP;
9689
9690 switch (dev->ieee80211_ptr->iftype) {
9691 case NL80211_IFTYPE_STATION:
9692 case NL80211_IFTYPE_P2P_CLIENT:
9693 break;
9694 default:
9695 return -EOPNOTSUPP;
9696 }
9697
9698 if (!info->attrs[NL80211_ATTR_MAC] ||
9699 !info->attrs[NL80211_ATTR_OPER_CLASS])
9700 return -EINVAL;
9701
9702 err = nl80211_parse_chandef(rdev, info, &chandef);
9703 if (err)
9704 return err;
9705
9706 /*
9707 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
9708 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
9709 * specification is not defined for them.
9710 */
9711 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
9712 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
9713 chandef.width != NL80211_CHAN_WIDTH_20)
9714 return -EINVAL;
9715
9716 /* we will be active on the TDLS link */
9717 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
9718 return -EINVAL;
9719
9720 /* don't allow switching to DFS channels */
9721 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
9722 return -EINVAL;
9723
9724 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9725 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
9726
9727 wdev_lock(wdev);
9728 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
9729 wdev_unlock(wdev);
9730
9731 return err;
9732}
9733
9734static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
9735 struct genl_info *info)
9736{
9737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9738 struct net_device *dev = info->user_ptr[1];
9739 struct wireless_dev *wdev = dev->ieee80211_ptr;
9740 const u8 *addr;
9741
9742 if (!rdev->ops->tdls_channel_switch ||
9743 !rdev->ops->tdls_cancel_channel_switch ||
9744 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9745 return -EOPNOTSUPP;
9746
9747 switch (dev->ieee80211_ptr->iftype) {
9748 case NL80211_IFTYPE_STATION:
9749 case NL80211_IFTYPE_P2P_CLIENT:
9750 break;
9751 default:
9752 return -EOPNOTSUPP;
9753 }
9754
9755 if (!info->attrs[NL80211_ATTR_MAC])
9756 return -EINVAL;
9757
9758 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9759
9760 wdev_lock(wdev);
9761 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
9762 wdev_unlock(wdev);
9763
9764 return 0;
9765}
9766
4c476991
JB		 9767#define NL80211_FLAG_NEED_WIPHY 0x01
9768#define NL80211_FLAG_NEED_NETDEV 0x02
9769#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9770#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9771#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9772 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9773#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9774/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9775#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9776 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 9777#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 9778
f84f771d 9779static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9780 struct genl_info *info)
9781{
9782 struct cfg80211_registered_device *rdev;
89a54e48 9783 struct wireless_dev *wdev;
4c476991 9784 struct net_device *dev;
4c476991
JB		 9785 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9786
9787 if (rtnl)
9788 rtnl_lock();
9789
9790 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9791 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9792 if (IS_ERR(rdev)) {
9793 if (rtnl)
9794 rtnl_unlock();
9795 return PTR_ERR(rdev);
9796 }
9797 info->user_ptr[0] = rdev;
1bf614ef
JB		 9798 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9799 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9800 ASSERT_RTNL();
9801
89a54e48
JB		 9802 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9803 info->attrs);
9804 if (IS_ERR(wdev)) {
4c476991
JB		 9805 if (rtnl)
9806 rtnl_unlock();
89a54e48 9807 return PTR_ERR(wdev);
4c476991 9808 }
89a54e48 9809
89a54e48 9810 dev = wdev->netdev;
f26cbf40 9811 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9812
1bf614ef
JB		 9813 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9814 if (!dev) {
1bf614ef
JB		 9815 if (rtnl)
9816 rtnl_unlock();
9817 return -EINVAL;
9818 }
9819
9820 info->user_ptr[1] = dev;
9821 } else {
9822 info->user_ptr[1] = wdev;
41265714 9823 }
1bf614ef
JB		 9824
9825 if (dev) {
9826 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9827 !netif_running(dev)) {
1bf614ef
JB		 9828 if (rtnl)
9829 rtnl_unlock();
9830 return -ENETDOWN;
9831 }
9832
9833 dev_hold(dev);
98104fde
JB		 9834 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9835 if (!wdev->p2p_started) {
98104fde
JB		 9836 if (rtnl)
9837 rtnl_unlock();
9838 return -ENETDOWN;
9839 }
41265714 9840 }
89a54e48 9841
4c476991 9842 info->user_ptr[0] = rdev;
4c476991
JB		 9843 }
9844
9845 return 0;
9846}
9847
f84f771d 9848static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9849 struct genl_info *info)
9850{
1bf614ef
JB		 9851 if (info->user_ptr[1]) {
9852 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9853 struct wireless_dev *wdev = info->user_ptr[1];
9854
9855 if (wdev->netdev)
9856 dev_put(wdev->netdev);
9857 } else {
9858 dev_put(info->user_ptr[1]);
9859 }
9860 }
5393b917 9861
4c476991
JB		 9862 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9863 rtnl_unlock();
5393b917
JB		 9864
9865 /* If needed, clear the netlink message payload from the SKB
9866 * as it might contain key data that shouldn't stick around on
9867 * the heap after the SKB is freed. The netlink message header
9868 * is still needed for further processing, so leave it intact.
9869 */
9870 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
9871 struct nlmsghdr *nlh = nlmsg_hdr(skb);
9872
9873 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
9874 }
4c476991
JB		 9875}
9876
4534de83 9877static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9878 {
9879 .cmd = NL80211_CMD_GET_WIPHY,
9880 .doit = nl80211_get_wiphy,
9881 .dumpit = nl80211_dump_wiphy,
86e8cf98 9882 .done = nl80211_dump_wiphy_done,
55682965
JB		 9883 .policy = nl80211_policy,
9884 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9885 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9886 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9887 },
9888 {
9889 .cmd = NL80211_CMD_SET_WIPHY,
9890 .doit = nl80211_set_wiphy,
9891 .policy = nl80211_policy,
9892 .flags = GENL_ADMIN_PERM,
4c476991 9893 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9894 },
9895 {
9896 .cmd = NL80211_CMD_GET_INTERFACE,
9897 .doit = nl80211_get_interface,
9898 .dumpit = nl80211_dump_interface,
9899 .policy = nl80211_policy,
9900 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9901 .internal_flags = NL80211_FLAG_NEED_WDEV |
9902 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9903 },
9904 {
9905 .cmd = NL80211_CMD_SET_INTERFACE,
9906 .doit = nl80211_set_interface,
9907 .policy = nl80211_policy,
9908 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9909 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9910 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9911 },
9912 {
9913 .cmd = NL80211_CMD_NEW_INTERFACE,
9914 .doit = nl80211_new_interface,
9915 .policy = nl80211_policy,
9916 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9917 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9918 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9919 },
9920 {
9921 .cmd = NL80211_CMD_DEL_INTERFACE,
9922 .doit = nl80211_del_interface,
9923 .policy = nl80211_policy,
41ade00f 9924 .flags = GENL_ADMIN_PERM,
84efbb84 9925 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9926 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9927 },
9928 {
9929 .cmd = NL80211_CMD_GET_KEY,
9930 .doit = nl80211_get_key,
9931 .policy = nl80211_policy,
9932 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9933 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9934 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9935 },
9936 {
9937 .cmd = NL80211_CMD_SET_KEY,
9938 .doit = nl80211_set_key,
9939 .policy = nl80211_policy,
9940 .flags = GENL_ADMIN_PERM,
41265714 9941 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 9942 NL80211_FLAG_NEED_RTNL |
9943 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 9944 },
9945 {
9946 .cmd = NL80211_CMD_NEW_KEY,
9947 .doit = nl80211_new_key,
9948 .policy = nl80211_policy,
9949 .flags = GENL_ADMIN_PERM,
41265714 9950 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 9951 NL80211_FLAG_NEED_RTNL |
9952 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 9953 },
9954 {
9955 .cmd = NL80211_CMD_DEL_KEY,
9956 .doit = nl80211_del_key,
9957 .policy = nl80211_policy,
55682965 9958 .flags = GENL_ADMIN_PERM,
41265714 9959 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9960 NL80211_FLAG_NEED_RTNL,
55682965 9961 },
ed1b6cc7
JB		 9962 {
9963 .cmd = NL80211_CMD_SET_BEACON,
9964 .policy = nl80211_policy,
9965 .flags = GENL_ADMIN_PERM,
8860020e 9966 .doit = nl80211_set_beacon,
2b5f8b0b 9967 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9968 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9969 },
9970 {
8860020e 9971 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9972 .policy = nl80211_policy,
9973 .flags = GENL_ADMIN_PERM,
8860020e 9974 .doit = nl80211_start_ap,
2b5f8b0b 9975 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9976 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9977 },
9978 {
8860020e 9979 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9980 .policy = nl80211_policy,
9981 .flags = GENL_ADMIN_PERM,
8860020e 9982 .doit = nl80211_stop_ap,
2b5f8b0b 9983 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9984 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9985 },
5727ef1b
JB		 9986 {
9987 .cmd = NL80211_CMD_GET_STATION,
9988 .doit = nl80211_get_station,
2ec600d6 9989 .dumpit = nl80211_dump_station,
5727ef1b 9990 .policy = nl80211_policy,
4c476991
JB		 9991 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9992 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9993 },
9994 {
9995 .cmd = NL80211_CMD_SET_STATION,
9996 .doit = nl80211_set_station,
9997 .policy = nl80211_policy,
9998 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9999 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10000 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10001 },
10002 {
10003 .cmd = NL80211_CMD_NEW_STATION,
10004 .doit = nl80211_new_station,
10005 .policy = nl80211_policy,
10006 .flags = GENL_ADMIN_PERM,
41265714 10007 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10008 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10009 },
10010 {
10011 .cmd = NL80211_CMD_DEL_STATION,
10012 .doit = nl80211_del_station,
10013 .policy = nl80211_policy,
2ec600d6 10014 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10015 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10016 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10017 },
10018 {
10019 .cmd = NL80211_CMD_GET_MPATH,
10020 .doit = nl80211_get_mpath,
10021 .dumpit = nl80211_dump_mpath,
10022 .policy = nl80211_policy,
10023 .flags = GENL_ADMIN_PERM,
41265714 10024 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10025 NL80211_FLAG_NEED_RTNL,
2ec600d6 10026 },
66be7d2b
HR		 10027 {
10028 .cmd = NL80211_CMD_GET_MPP,
10029 .doit = nl80211_get_mpp,
10030 .dumpit = nl80211_dump_mpp,
10031 .policy = nl80211_policy,
10032 .flags = GENL_ADMIN_PERM,
10033 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10034 NL80211_FLAG_NEED_RTNL,
10035 },
2ec600d6
LCC		 10036 {
10037 .cmd = NL80211_CMD_SET_MPATH,
10038 .doit = nl80211_set_mpath,
10039 .policy = nl80211_policy,
10040 .flags = GENL_ADMIN_PERM,
41265714 10041 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10042 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10043 },
10044 {
10045 .cmd = NL80211_CMD_NEW_MPATH,
10046 .doit = nl80211_new_mpath,
10047 .policy = nl80211_policy,
10048 .flags = GENL_ADMIN_PERM,
41265714 10049 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10050 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10051 },
10052 {
10053 .cmd = NL80211_CMD_DEL_MPATH,
10054 .doit = nl80211_del_mpath,
10055 .policy = nl80211_policy,
9f1ba906 10056 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10057 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10058 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10059 },
10060 {
10061 .cmd = NL80211_CMD_SET_BSS,
10062 .doit = nl80211_set_bss,
10063 .policy = nl80211_policy,
b2e1b302 10064 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10065 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10066 NL80211_FLAG_NEED_RTNL,
b2e1b302 10067 },
f130347c
LR		 10068 {
10069 .cmd = NL80211_CMD_GET_REG,
10070 .doit = nl80211_get_reg,
10071 .policy = nl80211_policy,
5fe231e8 10072 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10073 /* can be retrieved by unprivileged users */
10074 },
b2e1b302
LR		 10075 {
10076 .cmd = NL80211_CMD_SET_REG,
10077 .doit = nl80211_set_reg,
10078 .policy = nl80211_policy,
10079 .flags = GENL_ADMIN_PERM,
5fe231e8 10080 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10081 },
10082 {
10083 .cmd = NL80211_CMD_REQ_SET_REG,
10084 .doit = nl80211_req_set_reg,
10085 .policy = nl80211_policy,
93da9cc1 10086 .flags = GENL_ADMIN_PERM,
10087 },
10088 {
24bdd9f4
JC		 10089 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10090 .doit = nl80211_get_mesh_config,
93da9cc1 10091 .policy = nl80211_policy,
10092 /* can be retrieved by unprivileged users */
2b5f8b0b 10093 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10094 NL80211_FLAG_NEED_RTNL,
93da9cc1 10095 },
10096 {
24bdd9f4
JC		 10097 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10098 .doit = nl80211_update_mesh_config,
93da9cc1 10099 .policy = nl80211_policy,
9aed3cc1 10100 .flags = GENL_ADMIN_PERM,
29cbe68c 10101 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10102 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10103 },
2a519311
JB		 10104 {
10105 .cmd = NL80211_CMD_TRIGGER_SCAN,
10106 .doit = nl80211_trigger_scan,
10107 .policy = nl80211_policy,
10108 .flags = GENL_ADMIN_PERM,
fd014284 10109 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10110 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10111 },
10112 {
10113 .cmd = NL80211_CMD_GET_SCAN,
10114 .policy = nl80211_policy,
10115 .dumpit = nl80211_dump_scan,
10116 },
807f8a8c
LC		 10117 {
10118 .cmd = NL80211_CMD_START_SCHED_SCAN,
10119 .doit = nl80211_start_sched_scan,
10120 .policy = nl80211_policy,
10121 .flags = GENL_ADMIN_PERM,
10122 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10123 NL80211_FLAG_NEED_RTNL,
10124 },
10125 {
10126 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10127 .doit = nl80211_stop_sched_scan,
10128 .policy = nl80211_policy,
10129 .flags = GENL_ADMIN_PERM,
10130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10131 NL80211_FLAG_NEED_RTNL,
10132 },
636a5d36
JM		 10133 {
10134 .cmd = NL80211_CMD_AUTHENTICATE,
10135 .doit = nl80211_authenticate,
10136 .policy = nl80211_policy,
10137 .flags = GENL_ADMIN_PERM,
41265714 10138 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10139 NL80211_FLAG_NEED_RTNL |
10140 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10141 },
10142 {
10143 .cmd = NL80211_CMD_ASSOCIATE,
10144 .doit = nl80211_associate,
10145 .policy = nl80211_policy,
10146 .flags = GENL_ADMIN_PERM,
41265714 10147 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10148 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10149 },
10150 {
10151 .cmd = NL80211_CMD_DEAUTHENTICATE,
10152 .doit = nl80211_deauthenticate,
10153 .policy = nl80211_policy,
10154 .flags = GENL_ADMIN_PERM,
41265714 10155 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10156 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10157 },
10158 {
10159 .cmd = NL80211_CMD_DISASSOCIATE,
10160 .doit = nl80211_disassociate,
10161 .policy = nl80211_policy,
10162 .flags = GENL_ADMIN_PERM,
41265714 10163 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10164 NL80211_FLAG_NEED_RTNL,
636a5d36 10165 },
04a773ad
JB		 10166 {
10167 .cmd = NL80211_CMD_JOIN_IBSS,
10168 .doit = nl80211_join_ibss,
10169 .policy = nl80211_policy,
10170 .flags = GENL_ADMIN_PERM,
41265714 10171 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10172 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10173 },
10174 {
10175 .cmd = NL80211_CMD_LEAVE_IBSS,
10176 .doit = nl80211_leave_ibss,
10177 .policy = nl80211_policy,
10178 .flags = GENL_ADMIN_PERM,
41265714 10179 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10180 NL80211_FLAG_NEED_RTNL,
04a773ad 10181 },
aff89a9b
JB		 10182#ifdef CONFIG_NL80211_TESTMODE
10183 {
10184 .cmd = NL80211_CMD_TESTMODE,
10185 .doit = nl80211_testmode_do,
71063f0e 10186 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10187 .policy = nl80211_policy,
10188 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10189 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10190 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10191 },
10192#endif
b23aa676
SO		 10193 {
10194 .cmd = NL80211_CMD_CONNECT,
10195 .doit = nl80211_connect,
10196 .policy = nl80211_policy,
10197 .flags = GENL_ADMIN_PERM,
41265714 10198 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10199 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10200 },
10201 {
10202 .cmd = NL80211_CMD_DISCONNECT,
10203 .doit = nl80211_disconnect,
10204 .policy = nl80211_policy,
10205 .flags = GENL_ADMIN_PERM,
41265714 10206 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10207 NL80211_FLAG_NEED_RTNL,
b23aa676 10208 },
463d0183
JB		 10209 {
10210 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10211 .doit = nl80211_wiphy_netns,
10212 .policy = nl80211_policy,
10213 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10214 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10215 NL80211_FLAG_NEED_RTNL,
463d0183 10216 },
61fa713c
HS		 10217 {
10218 .cmd = NL80211_CMD_GET_SURVEY,
10219 .policy = nl80211_policy,
10220 .dumpit = nl80211_dump_survey,
10221 },
67fbb16b
SO		 10222 {
10223 .cmd = NL80211_CMD_SET_PMKSA,
10224 .doit = nl80211_setdel_pmksa,
10225 .policy = nl80211_policy,
10226 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10227 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10228 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10229 },
10230 {
10231 .cmd = NL80211_CMD_DEL_PMKSA,
10232 .doit = nl80211_setdel_pmksa,
10233 .policy = nl80211_policy,
10234 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10235 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10236 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10237 },
10238 {
10239 .cmd = NL80211_CMD_FLUSH_PMKSA,
10240 .doit = nl80211_flush_pmksa,
10241 .policy = nl80211_policy,
10242 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10243 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10244 NL80211_FLAG_NEED_RTNL,
67fbb16b 10245 },
9588bbd5
JM		 10246 {
10247 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10248 .doit = nl80211_remain_on_channel,
10249 .policy = nl80211_policy,
10250 .flags = GENL_ADMIN_PERM,
71bbc994 10251 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10252 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10253 },
10254 {
10255 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10256 .doit = nl80211_cancel_remain_on_channel,
10257 .policy = nl80211_policy,
10258 .flags = GENL_ADMIN_PERM,
71bbc994 10259 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10260 NL80211_FLAG_NEED_RTNL,
9588bbd5 10261 },
13ae75b1
JM		 10262 {
10263 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10264 .doit = nl80211_set_tx_bitrate_mask,
10265 .policy = nl80211_policy,
10266 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10267 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10268 NL80211_FLAG_NEED_RTNL,
13ae75b1 10269 },
026331c4 10270 {
2e161f78
JB		 10271 .cmd = NL80211_CMD_REGISTER_FRAME,
10272 .doit = nl80211_register_mgmt,
026331c4
JM		 10273 .policy = nl80211_policy,
10274 .flags = GENL_ADMIN_PERM,
71bbc994 10275 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10276 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10277 },
10278 {
2e161f78
JB		 10279 .cmd = NL80211_CMD_FRAME,
10280 .doit = nl80211_tx_mgmt,
026331c4 10281 .policy = nl80211_policy,
f7ca38df 10282 .flags = GENL_ADMIN_PERM,
71bbc994 10283 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10284 NL80211_FLAG_NEED_RTNL,
10285 },
10286 {
10287 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10288 .doit = nl80211_tx_mgmt_cancel_wait,
10289 .policy = nl80211_policy,
026331c4 10290 .flags = GENL_ADMIN_PERM,
71bbc994 10291 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10292 NL80211_FLAG_NEED_RTNL,
026331c4 10293 },
ffb9eb3d
KV		 10294 {
10295 .cmd = NL80211_CMD_SET_POWER_SAVE,
10296 .doit = nl80211_set_power_save,
10297 .policy = nl80211_policy,
10298 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10299 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10300 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10301 },
10302 {
10303 .cmd = NL80211_CMD_GET_POWER_SAVE,
10304 .doit = nl80211_get_power_save,
10305 .policy = nl80211_policy,
10306 /* can be retrieved by unprivileged users */
4c476991
JB		 10307 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10308 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10309 },
d6dc1a38
JO		 10310 {
10311 .cmd = NL80211_CMD_SET_CQM,
10312 .doit = nl80211_set_cqm,
10313 .policy = nl80211_policy,
10314 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10315 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10316 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10317 },
f444de05
JB		 10318 {
10319 .cmd = NL80211_CMD_SET_CHANNEL,
10320 .doit = nl80211_set_channel,
10321 .policy = nl80211_policy,
10322 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10323 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10324 NL80211_FLAG_NEED_RTNL,
f444de05 10325 },
e8347eba
BJ		 10326 {
10327 .cmd = NL80211_CMD_SET_WDS_PEER,
10328 .doit = nl80211_set_wds_peer,
10329 .policy = nl80211_policy,
10330 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10331 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10332 NL80211_FLAG_NEED_RTNL,
e8347eba 10333 },
29cbe68c
JB		 10334 {
10335 .cmd = NL80211_CMD_JOIN_MESH,
10336 .doit = nl80211_join_mesh,
10337 .policy = nl80211_policy,
10338 .flags = GENL_ADMIN_PERM,
10339 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10340 NL80211_FLAG_NEED_RTNL,
10341 },
10342 {
10343 .cmd = NL80211_CMD_LEAVE_MESH,
10344 .doit = nl80211_leave_mesh,
10345 .policy = nl80211_policy,
10346 .flags = GENL_ADMIN_PERM,
10347 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10348 NL80211_FLAG_NEED_RTNL,
10349 },
6e0bd6c3
RL		 10350 {
10351 .cmd = NL80211_CMD_JOIN_OCB,
10352 .doit = nl80211_join_ocb,
10353 .policy = nl80211_policy,
10354 .flags = GENL_ADMIN_PERM,
10355 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10356 NL80211_FLAG_NEED_RTNL,
10357 },
10358 {
10359 .cmd = NL80211_CMD_LEAVE_OCB,
10360 .doit = nl80211_leave_ocb,
10361 .policy = nl80211_policy,
10362 .flags = GENL_ADMIN_PERM,
10363 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10364 NL80211_FLAG_NEED_RTNL,
10365 },
dfb89c56 10366#ifdef CONFIG_PM
ff1b6e69
JB		 10367 {
10368 .cmd = NL80211_CMD_GET_WOWLAN,
10369 .doit = nl80211_get_wowlan,
10370 .policy = nl80211_policy,
10371 /* can be retrieved by unprivileged users */
10372 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10373 NL80211_FLAG_NEED_RTNL,
10374 },
10375 {
10376 .cmd = NL80211_CMD_SET_WOWLAN,
10377 .doit = nl80211_set_wowlan,
10378 .policy = nl80211_policy,
10379 .flags = GENL_ADMIN_PERM,
10380 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10381 NL80211_FLAG_NEED_RTNL,
10382 },
dfb89c56 10383#endif
e5497d76
JB		 10384 {
10385 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10386 .doit = nl80211_set_rekey_data,
10387 .policy = nl80211_policy,
10388 .flags = GENL_ADMIN_PERM,
10389 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10390 NL80211_FLAG_NEED_RTNL |
10391 NL80211_FLAG_CLEAR_SKB,
e5497d76 10392 },
109086ce
AN		 10393 {
10394 .cmd = NL80211_CMD_TDLS_MGMT,
10395 .doit = nl80211_tdls_mgmt,
10396 .policy = nl80211_policy,
10397 .flags = GENL_ADMIN_PERM,
10398 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10399 NL80211_FLAG_NEED_RTNL,
10400 },
10401 {
10402 .cmd = NL80211_CMD_TDLS_OPER,
10403 .doit = nl80211_tdls_oper,
10404 .policy = nl80211_policy,
10405 .flags = GENL_ADMIN_PERM,
10406 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10407 NL80211_FLAG_NEED_RTNL,
10408 },
28946da7
JB		 10409 {
10410 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10411 .doit = nl80211_register_unexpected_frame,
10412 .policy = nl80211_policy,
10413 .flags = GENL_ADMIN_PERM,
10414 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10415 NL80211_FLAG_NEED_RTNL,
10416 },
7f6cf311
JB		 10417 {
10418 .cmd = NL80211_CMD_PROBE_CLIENT,
10419 .doit = nl80211_probe_client,
10420 .policy = nl80211_policy,
10421 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10422 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10423 NL80211_FLAG_NEED_RTNL,
10424 },
5e760230
JB		 10425 {
10426 .cmd = NL80211_CMD_REGISTER_BEACONS,
10427 .doit = nl80211_register_beacons,
10428 .policy = nl80211_policy,
10429 .flags = GENL_ADMIN_PERM,
10430 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10431 NL80211_FLAG_NEED_RTNL,
10432 },
1d9d9213
SW		 10433 {
10434 .cmd = NL80211_CMD_SET_NOACK_MAP,
10435 .doit = nl80211_set_noack_map,
10436 .policy = nl80211_policy,
10437 .flags = GENL_ADMIN_PERM,
10438 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10439 NL80211_FLAG_NEED_RTNL,
10440 },
98104fde
JB		 10441 {
10442 .cmd = NL80211_CMD_START_P2P_DEVICE,
10443 .doit = nl80211_start_p2p_device,
10444 .policy = nl80211_policy,
10445 .flags = GENL_ADMIN_PERM,
10446 .internal_flags = NL80211_FLAG_NEED_WDEV |
10447 NL80211_FLAG_NEED_RTNL,
10448 },
10449 {
10450 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10451 .doit = nl80211_stop_p2p_device,
10452 .policy = nl80211_policy,
10453 .flags = GENL_ADMIN_PERM,
10454 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10455 NL80211_FLAG_NEED_RTNL,
10456 },
f4e583c8
AQ		 10457 {
10458 .cmd = NL80211_CMD_SET_MCAST_RATE,
10459 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10460 .policy = nl80211_policy,
10461 .flags = GENL_ADMIN_PERM,
10462 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10463 NL80211_FLAG_NEED_RTNL,
10464 },
10465 {
10466 .cmd = NL80211_CMD_SET_MAC_ACL,
10467 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10468 .policy = nl80211_policy,
10469 .flags = GENL_ADMIN_PERM,
10470 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10471 NL80211_FLAG_NEED_RTNL,
10472 },
04f39047
SW		 10473 {
10474 .cmd = NL80211_CMD_RADAR_DETECT,
10475 .doit = nl80211_start_radar_detection,
10476 .policy = nl80211_policy,
10477 .flags = GENL_ADMIN_PERM,
10478 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10479 NL80211_FLAG_NEED_RTNL,
10480 },
3713b4e3
JB		 10481 {
10482 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10483 .doit = nl80211_get_protocol_features,
10484 .policy = nl80211_policy,
10485 },
355199e0
JM		 10486 {
10487 .cmd = NL80211_CMD_UPDATE_FT_IES,
10488 .doit = nl80211_update_ft_ies,
10489 .policy = nl80211_policy,
10490 .flags = GENL_ADMIN_PERM,
10491 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10492 NL80211_FLAG_NEED_RTNL,
10493 },
5de17984
AS		 10494 {
10495 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10496 .doit = nl80211_crit_protocol_start,
10497 .policy = nl80211_policy,
10498 .flags = GENL_ADMIN_PERM,
10499 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10500 NL80211_FLAG_NEED_RTNL,
10501 },
10502 {
10503 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10504 .doit = nl80211_crit_protocol_stop,
10505 .policy = nl80211_policy,
10506 .flags = GENL_ADMIN_PERM,
10507 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10508 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10509 },
10510 {
10511 .cmd = NL80211_CMD_GET_COALESCE,
10512 .doit = nl80211_get_coalesce,
10513 .policy = nl80211_policy,
10514 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10515 NL80211_FLAG_NEED_RTNL,
10516 },
10517 {
10518 .cmd = NL80211_CMD_SET_COALESCE,
10519 .doit = nl80211_set_coalesce,
10520 .policy = nl80211_policy,
10521 .flags = GENL_ADMIN_PERM,
10522 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10523 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10524 },
10525 {
10526 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10527 .doit = nl80211_channel_switch,
10528 .policy = nl80211_policy,
10529 .flags = GENL_ADMIN_PERM,
10530 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10531 NL80211_FLAG_NEED_RTNL,
10532 },
ad7e718c
JB		 10533 {
10534 .cmd = NL80211_CMD_VENDOR,
10535 .doit = nl80211_vendor_cmd,
10536 .policy = nl80211_policy,
10537 .flags = GENL_ADMIN_PERM,
10538 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10539 NL80211_FLAG_NEED_RTNL,
10540 },
fa9ffc74
KP		 10541 {
10542 .cmd = NL80211_CMD_SET_QOS_MAP,
10543 .doit = nl80211_set_qos_map,
10544 .policy = nl80211_policy,
10545 .flags = GENL_ADMIN_PERM,
10546 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10547 NL80211_FLAG_NEED_RTNL,
10548 },
960d01ac
JB		 10549 {
10550 .cmd = NL80211_CMD_ADD_TX_TS,
10551 .doit = nl80211_add_tx_ts,
10552 .policy = nl80211_policy,
10553 .flags = GENL_ADMIN_PERM,
10554 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10555 NL80211_FLAG_NEED_RTNL,
10556 },
10557 {
10558 .cmd = NL80211_CMD_DEL_TX_TS,
10559 .doit = nl80211_del_tx_ts,
10560 .policy = nl80211_policy,
10561 .flags = GENL_ADMIN_PERM,
10562 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10563 NL80211_FLAG_NEED_RTNL,
10564 },
1057d35e
AN		 10565 {
10566 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10567 .doit = nl80211_tdls_channel_switch,
10568 .policy = nl80211_policy,
10569 .flags = GENL_ADMIN_PERM,
10570 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10571 NL80211_FLAG_NEED_RTNL,
10572 },
10573 {
10574 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10575 .doit = nl80211_tdls_cancel_channel_switch,
10576 .policy = nl80211_policy,
10577 .flags = GENL_ADMIN_PERM,
10578 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10579 NL80211_FLAG_NEED_RTNL,
10580 },
55682965 10581};
9588bbd5 10582
55682965
JB		 10583/* notification functions */
10584
3bb20556
JB		 10585void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10586 enum nl80211_commands cmd)
55682965
JB		 10587{
10588 struct sk_buff *msg;
86e8cf98 10589 struct nl80211_dump_wiphy_state state = {};
55682965 10590
3bb20556
JB		 10591 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10592 cmd != NL80211_CMD_DEL_WIPHY);
10593
fd2120ca 10594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10595 if (!msg)
10596 return;
10597
3bb20556 10598 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10599 nlmsg_free(msg);
10600 return;
10601 }
10602
68eb5503 10603 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10604 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10605}
10606
362a415d
JB		 10607static int nl80211_add_scan_req(struct sk_buff *msg,
10608 struct cfg80211_registered_device *rdev)
10609{
10610 struct cfg80211_scan_request *req = rdev->scan_req;
10611 struct nlattr *nest;
10612 int i;
10613
10614 if (WARN_ON(!req))
10615 return 0;
10616
10617 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10618 if (!nest)
10619 goto nla_put_failure;
9360ffd1
DM		 10620 for (i = 0; i < req->n_ssids; i++) {
10621 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10622 goto nla_put_failure;
10623 }
362a415d
JB		 10624 nla_nest_end(msg, nest);
10625
10626 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10627 if (!nest)
10628 goto nla_put_failure;
9360ffd1
DM		 10629 for (i = 0; i < req->n_channels; i++) {
10630 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10631 goto nla_put_failure;
10632 }
362a415d
JB		 10633 nla_nest_end(msg, nest);
10634
9360ffd1
DM		 10635 if (req->ie &&
10636 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10637 goto nla_put_failure;
362a415d 10638
ae917c9f
JB		 10639 if (req->flags &&
10640 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10641 goto nla_put_failure;
ed473771 10642
362a415d
JB		 10643 return 0;
10644 nla_put_failure:
10645 return -ENOBUFS;
10646}
10647
a538e2d5
JB		 10648static int nl80211_send_scan_msg(struct sk_buff *msg,
10649 struct cfg80211_registered_device *rdev,
fd014284 10650 struct wireless_dev *wdev,
15e47304 10651 u32 portid, u32 seq, int flags,
a538e2d5 10652 u32 cmd)
2a519311
JB		 10653{
10654 void *hdr;
10655
15e47304 10656 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10657 if (!hdr)
10658 return -1;
10659
9360ffd1 10660 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10661 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10662 wdev->netdev->ifindex)) ||
10663 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10664 goto nla_put_failure;
2a519311 10665
362a415d
JB		 10666 /* ignore errors and send incomplete event anyway */
10667 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10668
10669 return genlmsg_end(msg, hdr);
10670
10671 nla_put_failure:
10672 genlmsg_cancel(msg, hdr);
10673 return -EMSGSIZE;
10674}
10675
807f8a8c
LC		 10676static int
10677nl80211_send_sched_scan_msg(struct sk_buff *msg,
10678 struct cfg80211_registered_device *rdev,
10679 struct net_device *netdev,
15e47304 10680 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10681{
10682 void *hdr;
10683
15e47304 10684 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10685 if (!hdr)
10686 return -1;
10687
9360ffd1
DM		 10688 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10689 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10690 goto nla_put_failure;
807f8a8c
LC		 10691
10692 return genlmsg_end(msg, hdr);
10693
10694 nla_put_failure:
10695 genlmsg_cancel(msg, hdr);
10696 return -EMSGSIZE;
10697}
10698
a538e2d5 10699void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10700 struct wireless_dev *wdev)
a538e2d5
JB		 10701{
10702 struct sk_buff *msg;
10703
58050fce 10704 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10705 if (!msg)
10706 return;
10707
fd014284 10708 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10709 NL80211_CMD_TRIGGER_SCAN) < 0) {
10710 nlmsg_free(msg);
10711 return;
10712 }
10713
68eb5503 10714 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10715 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10716}
10717
f9d15d16
JB		 10718struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10719 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10720{
10721 struct sk_buff *msg;
10722
fd2120ca 10723 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10724 if (!msg)
f9d15d16 10725 return NULL;
2a519311 10726
fd014284 10727 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10728 aborted ? NL80211_CMD_SCAN_ABORTED :
10729 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10730 nlmsg_free(msg);
f9d15d16 10731 return NULL;
2a519311
JB		 10732 }
10733
f9d15d16 10734 return msg;
2a519311
JB		 10735}
10736
f9d15d16
JB		 10737void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10738 struct sk_buff *msg)
2a519311 10739{
2a519311
JB		 10740 if (!msg)
10741 return;
10742
68eb5503 10743 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10744 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10745}
10746
807f8a8c
LC		 10747void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10748 struct net_device *netdev)
10749{
10750 struct sk_buff *msg;
10751
10752 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10753 if (!msg)
10754 return;
10755
10756 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10757 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10758 nlmsg_free(msg);
10759 return;
10760 }
10761
68eb5503 10762 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10763 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10764}
10765
10766void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10767 struct net_device *netdev, u32 cmd)
10768{
10769 struct sk_buff *msg;
10770
58050fce 10771 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10772 if (!msg)
10773 return;
10774
10775 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10776 nlmsg_free(msg);
10777 return;
10778 }
10779
68eb5503 10780 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10781 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10782}
10783
73d54c9e
LR		 10784/*
10785 * This can happen on global regulatory changes or device specific settings
10786 * based on custom world regulatory domains.
10787 */
10788void nl80211_send_reg_change_event(struct regulatory_request *request)
10789{
10790 struct sk_buff *msg;
10791 void *hdr;
10792
fd2120ca 10793 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10794 if (!msg)
10795 return;
10796
10797 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10798 if (!hdr) {
10799 nlmsg_free(msg);
10800 return;
10801 }
10802
10803 /* Userspace can always count this one always being set */
9360ffd1
DM		 10804 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10805 goto nla_put_failure;
10806
10807 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10808 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10809 NL80211_REGDOM_TYPE_WORLD))
10810 goto nla_put_failure;
10811 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10812 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10813 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10814 goto nla_put_failure;
10815 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10816 request->intersect) {
10817 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10818 NL80211_REGDOM_TYPE_INTERSECTION))
10819 goto nla_put_failure;
10820 } else {
10821 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10822 NL80211_REGDOM_TYPE_COUNTRY) ||
10823 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10824 request->alpha2))
10825 goto nla_put_failure;
10826 }
10827
f4173766 10828 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10829 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10830 goto nla_put_failure;
73d54c9e 10831
3b7b72ee 10832 genlmsg_end(msg, hdr);
73d54c9e 10833
bc43b28c 10834 rcu_read_lock();
68eb5503 10835 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10836 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10837 rcu_read_unlock();
73d54c9e
LR		 10838
10839 return;
10840
10841nla_put_failure:
10842 genlmsg_cancel(msg, hdr);
10843 nlmsg_free(msg);
10844}
10845
6039f6d2
JM		 10846static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10847 struct net_device *netdev,
10848 const u8 *buf, size_t len,
b0b6aa2c
EP		 10849 enum nl80211_commands cmd, gfp_t gfp,
10850 int uapsd_queues)
6039f6d2
JM		 10851{
10852 struct sk_buff *msg;
10853 void *hdr;
10854
e6d6e342 10855 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10856 if (!msg)
10857 return;
10858
10859 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10860 if (!hdr) {
10861 nlmsg_free(msg);
10862 return;
10863 }
10864
9360ffd1
DM		 10865 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10866 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10867 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10868 goto nla_put_failure;
6039f6d2 10869
b0b6aa2c
EP		 10870 if (uapsd_queues >= 0) {
10871 struct nlattr *nla_wmm =
10872 nla_nest_start(msg, NL80211_ATTR_STA_WME);
10873 if (!nla_wmm)
10874 goto nla_put_failure;
10875
10876 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
10877 uapsd_queues))
10878 goto nla_put_failure;
10879
10880 nla_nest_end(msg, nla_wmm);
10881 }
10882
3b7b72ee 10883 genlmsg_end(msg, hdr);
6039f6d2 10884
68eb5503 10885 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10886 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10887 return;
10888
10889 nla_put_failure:
10890 genlmsg_cancel(msg, hdr);
10891 nlmsg_free(msg);
10892}
10893
10894void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10895 struct net_device *netdev, const u8 *buf,
10896 size_t len, gfp_t gfp)
6039f6d2
JM		 10897{
10898 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10899 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 10900}
10901
10902void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10903 struct net_device *netdev, const u8 *buf,
b0b6aa2c 10904 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 10905{
e6d6e342 10906 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10907 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 10908}
10909
53b46b84 10910void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10911 struct net_device *netdev, const u8 *buf,
10912 size_t len, gfp_t gfp)
6039f6d2
JM		 10913{
10914 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10915 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 10916}
10917
53b46b84
JM		 10918void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10919 struct net_device *netdev, const u8 *buf,
e6d6e342 10920 size_t len, gfp_t gfp)
6039f6d2
JM		 10921{
10922 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10923 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 10924}
10925
6ff57cf8
JB		 10926void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10927 size_t len)
cf4e594e 10928{
947add36
JB		 10929 struct wireless_dev *wdev = dev->ieee80211_ptr;
10930 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10931 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10932 const struct ieee80211_mgmt *mgmt = (void *)buf;
10933 u32 cmd;
947add36 10934
6ff57cf8
JB		 10935 if (WARN_ON(len < 2))
10936 return;
cf4e594e 10937
6ff57cf8
JB		 10938 if (ieee80211_is_deauth(mgmt->frame_control))
10939 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10940 else
10941 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10942
6ff57cf8 10943 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 10944 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 10945}
6ff57cf8 10946EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10947
1b06bb40
LR		 10948static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10949 struct net_device *netdev, int cmd,
e6d6e342 10950 const u8 *addr, gfp_t gfp)
1965c853
JM		 10951{
10952 struct sk_buff *msg;
10953 void *hdr;
10954
e6d6e342 10955 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10956 if (!msg)
10957 return;
10958
10959 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10960 if (!hdr) {
10961 nlmsg_free(msg);
10962 return;
10963 }
10964
9360ffd1
DM		 10965 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10966 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10967 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10968 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10969 goto nla_put_failure;
1965c853 10970
3b7b72ee 10971 genlmsg_end(msg, hdr);
1965c853 10972
68eb5503 10973 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10974 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10975 return;
10976
10977 nla_put_failure:
10978 genlmsg_cancel(msg, hdr);
10979 nlmsg_free(msg);
10980}
10981
10982void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10983 struct net_device *netdev, const u8 *addr,
10984 gfp_t gfp)
1965c853
JM		 10985{
10986 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10987 addr, gfp);
1965c853
JM		 10988}
10989
10990void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10991 struct net_device *netdev, const u8 *addr,
10992 gfp_t gfp)
1965c853 10993{
e6d6e342
JB		 10994 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10995 addr, gfp);
1965c853
JM		 10996}
10997
b23aa676
SO		 10998void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10999 struct net_device *netdev, const u8 *bssid,
11000 const u8 *req_ie, size_t req_ie_len,
11001 const u8 *resp_ie, size_t resp_ie_len,
11002 u16 status, gfp_t gfp)
11003{
11004 struct sk_buff *msg;
11005 void *hdr;
11006
58050fce 11007 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11008 if (!msg)
11009 return;
11010
11011 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11012 if (!hdr) {
11013 nlmsg_free(msg);
11014 return;
11015 }
11016
9360ffd1
DM		 11017 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11018 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11019 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11020 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11021 (req_ie &&
11022 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11023 (resp_ie &&
11024 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11025 goto nla_put_failure;
b23aa676 11026
3b7b72ee 11027 genlmsg_end(msg, hdr);
b23aa676 11028
68eb5503 11029 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11030 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11031 return;
11032
11033 nla_put_failure:
11034 genlmsg_cancel(msg, hdr);
11035 nlmsg_free(msg);
11036
11037}
11038
11039void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11040 struct net_device *netdev, const u8 *bssid,
11041 const u8 *req_ie, size_t req_ie_len,
11042 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11043{
11044 struct sk_buff *msg;
11045 void *hdr;
11046
58050fce 11047 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11048 if (!msg)
11049 return;
11050
11051 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11052 if (!hdr) {
11053 nlmsg_free(msg);
11054 return;
11055 }
11056
9360ffd1
DM		 11057 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11058 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11059 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11060 (req_ie &&
11061 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11062 (resp_ie &&
11063 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11064 goto nla_put_failure;
b23aa676 11065
3b7b72ee 11066 genlmsg_end(msg, hdr);
b23aa676 11067
68eb5503 11068 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11069 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11070 return;
11071
11072 nla_put_failure:
11073 genlmsg_cancel(msg, hdr);
11074 nlmsg_free(msg);
11075
11076}
11077
11078void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11079 struct net_device *netdev, u16 reason,
667503dd 11080 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11081{
11082 struct sk_buff *msg;
11083 void *hdr;
11084
58050fce 11085 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11086 if (!msg)
11087 return;
11088
11089 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11090 if (!hdr) {
11091 nlmsg_free(msg);
11092 return;
11093 }
11094
9360ffd1
DM		 11095 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11096 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11097 (from_ap && reason &&
11098 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11099 (from_ap &&
11100 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11101 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11102 goto nla_put_failure;
b23aa676 11103
3b7b72ee 11104 genlmsg_end(msg, hdr);
b23aa676 11105
68eb5503 11106 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11107 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11108 return;
11109
11110 nla_put_failure:
11111 genlmsg_cancel(msg, hdr);
11112 nlmsg_free(msg);
11113
11114}
11115
04a773ad
JB		 11116void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11117 struct net_device *netdev, const u8 *bssid,
11118 gfp_t gfp)
11119{
11120 struct sk_buff *msg;
11121 void *hdr;
11122
fd2120ca 11123 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11124 if (!msg)
11125 return;
11126
11127 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11128 if (!hdr) {
11129 nlmsg_free(msg);
11130 return;
11131 }
11132
9360ffd1
DM		 11133 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11134 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11135 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11136 goto nla_put_failure;
04a773ad 11137
3b7b72ee 11138 genlmsg_end(msg, hdr);
04a773ad 11139
68eb5503 11140 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11141 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11142 return;
11143
11144 nla_put_failure:
11145 genlmsg_cancel(msg, hdr);
11146 nlmsg_free(msg);
11147}
11148
947add36
JB		 11149void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11150 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11151{
947add36 11152 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11153 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11154 struct sk_buff *msg;
11155 void *hdr;
11156
947add36
JB		 11157 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11158 return;
11159
11160 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11161
c93b5e71
JC		 11162 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11163 if (!msg)
11164 return;
11165
11166 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11167 if (!hdr) {
11168 nlmsg_free(msg);
11169 return;
11170 }
11171
9360ffd1 11172 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11173 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11174 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11175 (ie_len && ie &&
11176 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11177 goto nla_put_failure;
c93b5e71 11178
3b7b72ee 11179 genlmsg_end(msg, hdr);
c93b5e71 11180
68eb5503 11181 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11182 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11183 return;
11184
11185 nla_put_failure:
11186 genlmsg_cancel(msg, hdr);
11187 nlmsg_free(msg);
11188}
947add36 11189EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11190
a3b8b056
JM		 11191void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11192 struct net_device *netdev, const u8 *addr,
11193 enum nl80211_key_type key_type, int key_id,
e6d6e342 11194 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11195{
11196 struct sk_buff *msg;
11197 void *hdr;
11198
e6d6e342 11199 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11200 if (!msg)
11201 return;
11202
11203 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11204 if (!hdr) {
11205 nlmsg_free(msg);
11206 return;
11207 }
11208
9360ffd1
DM		 11209 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11210 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11211 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11212 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11213 (key_id != -1 &&
11214 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11215 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11216 goto nla_put_failure;
a3b8b056 11217
3b7b72ee 11218 genlmsg_end(msg, hdr);
a3b8b056 11219
68eb5503 11220 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11221 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11222 return;
11223
11224 nla_put_failure:
11225 genlmsg_cancel(msg, hdr);
11226 nlmsg_free(msg);
11227}
11228
6bad8766
LR		 11229void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11230 struct ieee80211_channel *channel_before,
11231 struct ieee80211_channel *channel_after)
11232{
11233 struct sk_buff *msg;
11234 void *hdr;
11235 struct nlattr *nl_freq;
11236
fd2120ca 11237 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11238 if (!msg)
11239 return;
11240
11241 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11242 if (!hdr) {
11243 nlmsg_free(msg);
11244 return;
11245 }
11246
11247 /*
11248 * Since we are applying the beacon hint to a wiphy we know its
11249 * wiphy_idx is valid
11250 */
9360ffd1
DM		 11251 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11252 goto nla_put_failure;
6bad8766
LR		 11253
11254 /* Before */
11255 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11256 if (!nl_freq)
11257 goto nla_put_failure;
cdc89b97 11258 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11259 goto nla_put_failure;
11260 nla_nest_end(msg, nl_freq);
11261
11262 /* After */
11263 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11264 if (!nl_freq)
11265 goto nla_put_failure;
cdc89b97 11266 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11267 goto nla_put_failure;
11268 nla_nest_end(msg, nl_freq);
11269
3b7b72ee 11270 genlmsg_end(msg, hdr);
6bad8766 11271
463d0183 11272 rcu_read_lock();
68eb5503 11273 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11274 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11275 rcu_read_unlock();
6bad8766
LR		 11276
11277 return;
11278
11279nla_put_failure:
11280 genlmsg_cancel(msg, hdr);
11281 nlmsg_free(msg);
11282}
11283
9588bbd5
JM		 11284static void nl80211_send_remain_on_chan_event(
11285 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11286 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11287 struct ieee80211_channel *chan,
9588bbd5
JM		 11288 unsigned int duration, gfp_t gfp)
11289{
11290 struct sk_buff *msg;
11291 void *hdr;
11292
11293 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11294 if (!msg)
11295 return;
11296
11297 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11298 if (!hdr) {
11299 nlmsg_free(msg);
11300 return;
11301 }
11302
9360ffd1 11303 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11304 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11305 wdev->netdev->ifindex)) ||
00f53350 11306 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11307 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11308 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11309 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11310 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11311 goto nla_put_failure;
9588bbd5 11312
9360ffd1
DM		 11313 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11314 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11315 goto nla_put_failure;
9588bbd5 11316
3b7b72ee 11317 genlmsg_end(msg, hdr);
9588bbd5 11318
68eb5503 11319 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11320 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11321 return;
11322
11323 nla_put_failure:
11324 genlmsg_cancel(msg, hdr);
11325 nlmsg_free(msg);
11326}
11327
947add36
JB		 11328void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11329 struct ieee80211_channel *chan,
11330 unsigned int duration, gfp_t gfp)
9588bbd5 11331{
947add36 11332 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11333 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11334
11335 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11336 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11337 rdev, wdev, cookie, chan,
42d97a59 11338 duration, gfp);
9588bbd5 11339}
947add36 11340EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11341
947add36
JB		 11342void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11343 struct ieee80211_channel *chan,
11344 gfp_t gfp)
9588bbd5 11345{
947add36 11346 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11347 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11348
11349 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11350 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11351 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11352}
947add36 11353EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11354
947add36
JB		 11355void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11356 struct station_info *sinfo, gfp_t gfp)
98b62183 11357{
947add36 11358 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11359 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11360 struct sk_buff *msg;
11361
947add36
JB		 11362 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11363
58050fce 11364 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11365 if (!msg)
11366 return;
11367
66266b3a
JL		 11368 if (nl80211_send_station(msg, 0, 0, 0,
11369 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11370 nlmsg_free(msg);
11371 return;
11372 }
11373
68eb5503 11374 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11375 NL80211_MCGRP_MLME, gfp);
98b62183 11376}
947add36 11377EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11378
947add36 11379void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 11380{
947add36 11381 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11382 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 11383 struct sk_buff *msg;
11384 void *hdr;
11385
947add36
JB		 11386 trace_cfg80211_del_sta(dev, mac_addr);
11387
58050fce 11388 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11389 if (!msg)
11390 return;
11391
11392 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
11393 if (!hdr) {
11394 nlmsg_free(msg);
11395 return;
11396 }
11397
9360ffd1
DM		 11398 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11399 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
11400 goto nla_put_failure;
ec15e68b 11401
3b7b72ee 11402 genlmsg_end(msg, hdr);
ec15e68b 11403
68eb5503 11404 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11405 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 11406 return;
11407
11408 nla_put_failure:
11409 genlmsg_cancel(msg, hdr);
11410 nlmsg_free(msg);
11411}
947add36 11412EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 11413
947add36
JB		 11414void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11415 enum nl80211_connect_failed_reason reason,
11416 gfp_t gfp)
ed44a951 11417{
947add36 11418 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11419 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11420 struct sk_buff *msg;
11421 void *hdr;
11422
11423 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11424 if (!msg)
11425 return;
11426
11427 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11428 if (!hdr) {
11429 nlmsg_free(msg);
11430 return;
11431 }
11432
11433 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11434 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11435 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11436 goto nla_put_failure;
11437
11438 genlmsg_end(msg, hdr);
11439
68eb5503 11440 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11441 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11442 return;
11443
11444 nla_put_failure:
11445 genlmsg_cancel(msg, hdr);
11446 nlmsg_free(msg);
11447}
947add36 11448EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11449
b92ab5d8
JB		 11450static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11451 const u8 *addr, gfp_t gfp)
28946da7
JB		 11452{
11453 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11454 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11455 struct sk_buff *msg;
11456 void *hdr;
15e47304 11457 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11458
15e47304 11459 if (!nlportid)
28946da7
JB		 11460 return false;
11461
11462 msg = nlmsg_new(100, gfp);
11463 if (!msg)
11464 return true;
11465
b92ab5d8 11466 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11467 if (!hdr) {
11468 nlmsg_free(msg);
11469 return true;
11470 }
11471
9360ffd1
DM		 11472 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11473 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11474 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11475 goto nla_put_failure;
28946da7 11476
9c90a9f6 11477 genlmsg_end(msg, hdr);
15e47304 11478 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11479 return true;
11480
11481 nla_put_failure:
11482 genlmsg_cancel(msg, hdr);
11483 nlmsg_free(msg);
11484 return true;
11485}
11486
947add36
JB		 11487bool cfg80211_rx_spurious_frame(struct net_device *dev,
11488 const u8 *addr, gfp_t gfp)
b92ab5d8 11489{
947add36
JB		 11490 struct wireless_dev *wdev = dev->ieee80211_ptr;
11491 bool ret;
11492
11493 trace_cfg80211_rx_spurious_frame(dev, addr);
11494
11495 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11496 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11497 trace_cfg80211_return_bool(false);
11498 return false;
11499 }
11500 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11501 addr, gfp);
11502 trace_cfg80211_return_bool(ret);
11503 return ret;
b92ab5d8 11504}
947add36 11505EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11506
947add36
JB		 11507bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11508 const u8 *addr, gfp_t gfp)
b92ab5d8 11509{
947add36
JB		 11510 struct wireless_dev *wdev = dev->ieee80211_ptr;
11511 bool ret;
11512
11513 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11514
11515 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11516 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11517 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11518 trace_cfg80211_return_bool(false);
11519 return false;
11520 }
11521 ret = __nl80211_unexpected_frame(dev,
11522 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11523 addr, gfp);
11524 trace_cfg80211_return_bool(ret);
11525 return ret;
b92ab5d8 11526}
947add36 11527EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11528
2e161f78 11529int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11530 struct wireless_dev *wdev, u32 nlportid,
804483e9 11531 int freq, int sig_dbm,
19504cf5 11532 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11533{
71bbc994 11534 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11535 struct sk_buff *msg;
11536 void *hdr;
026331c4
JM		 11537
11538 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11539 if (!msg)
11540 return -ENOMEM;
11541
2e161f78 11542 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11543 if (!hdr) {
11544 nlmsg_free(msg);
11545 return -ENOMEM;
11546 }
11547
9360ffd1 11548 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11549 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11550 netdev->ifindex)) ||
a838490b 11551 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11552 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11553 (sig_dbm &&
11554 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11555 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11556 (flags &&
11557 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11558 goto nla_put_failure;
026331c4 11559
3b7b72ee 11560 genlmsg_end(msg, hdr);
026331c4 11561
15e47304 11562 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11563
11564 nla_put_failure:
11565 genlmsg_cancel(msg, hdr);
11566 nlmsg_free(msg);
11567 return -ENOBUFS;
11568}
11569
947add36
JB		 11570void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11571 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11572{
947add36 11573 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11574 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11575 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11576 struct sk_buff *msg;
11577 void *hdr;
11578
947add36
JB		 11579 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11580
026331c4
JM		 11581 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11582 if (!msg)
11583 return;
11584
2e161f78 11585 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11586 if (!hdr) {
11587 nlmsg_free(msg);
11588 return;
11589 }
11590
9360ffd1 11591 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11592 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11593 netdev->ifindex)) ||
a838490b 11594 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11595 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11596 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11597 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11598 goto nla_put_failure;
026331c4 11599
3b7b72ee 11600 genlmsg_end(msg, hdr);
026331c4 11601
68eb5503 11602 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11603 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11604 return;
11605
11606 nla_put_failure:
11607 genlmsg_cancel(msg, hdr);
11608 nlmsg_free(msg);
11609}
947add36 11610EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11611
947add36
JB		 11612void cfg80211_cqm_rssi_notify(struct net_device *dev,
11613 enum nl80211_cqm_rssi_threshold_event rssi_event,
11614 gfp_t gfp)
d6dc1a38 11615{
947add36
JB		 11616 struct wireless_dev *wdev = dev->ieee80211_ptr;
11617 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11618 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11619 struct sk_buff *msg;
11620 struct nlattr *pinfoattr;
11621 void *hdr;
11622
947add36
JB		 11623 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11624
58050fce 11625 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11626 if (!msg)
11627 return;
11628
11629 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11630 if (!hdr) {
11631 nlmsg_free(msg);
11632 return;
11633 }
11634
9360ffd1 11635 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11636 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11637 goto nla_put_failure;
d6dc1a38
JO		 11638
11639 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11640 if (!pinfoattr)
11641 goto nla_put_failure;
11642
9360ffd1
DM		 11643 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11644 rssi_event))
11645 goto nla_put_failure;
d6dc1a38
JO		 11646
11647 nla_nest_end(msg, pinfoattr);
11648
3b7b72ee 11649 genlmsg_end(msg, hdr);
d6dc1a38 11650
68eb5503 11651 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11652 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11653 return;
11654
11655 nla_put_failure:
11656 genlmsg_cancel(msg, hdr);
11657 nlmsg_free(msg);
11658}
947add36 11659EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11660
947add36
JB		 11661static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11662 struct net_device *netdev, const u8 *bssid,
11663 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11664{
11665 struct sk_buff *msg;
11666 struct nlattr *rekey_attr;
11667 void *hdr;
11668
58050fce 11669 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11670 if (!msg)
11671 return;
11672
11673 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11674 if (!hdr) {
11675 nlmsg_free(msg);
11676 return;
11677 }
11678
9360ffd1
DM		 11679 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11680 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11681 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11682 goto nla_put_failure;
e5497d76
JB		 11683
11684 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11685 if (!rekey_attr)
11686 goto nla_put_failure;
11687
9360ffd1
DM		 11688 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11689 NL80211_REPLAY_CTR_LEN, replay_ctr))
11690 goto nla_put_failure;
e5497d76
JB		 11691
11692 nla_nest_end(msg, rekey_attr);
11693
3b7b72ee 11694 genlmsg_end(msg, hdr);
e5497d76 11695
68eb5503 11696 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11697 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11698 return;
11699
11700 nla_put_failure:
11701 genlmsg_cancel(msg, hdr);
11702 nlmsg_free(msg);
11703}
11704
947add36
JB		 11705void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11706 const u8 *replay_ctr, gfp_t gfp)
11707{
11708 struct wireless_dev *wdev = dev->ieee80211_ptr;
11709 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11710 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11711
11712 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11713 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11714}
11715EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11716
11717static void
11718nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11719 struct net_device *netdev, int index,
11720 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11721{
11722 struct sk_buff *msg;
11723 struct nlattr *attr;
11724 void *hdr;
11725
58050fce 11726 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11727 if (!msg)
11728 return;
11729
11730 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11731 if (!hdr) {
11732 nlmsg_free(msg);
11733 return;
11734 }
11735
9360ffd1
DM		 11736 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11737 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11738 goto nla_put_failure;
c9df56b4
JM		 11739
11740 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11741 if (!attr)
11742 goto nla_put_failure;
11743
9360ffd1
DM		 11744 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11745 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11746 (preauth &&
11747 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11748 goto nla_put_failure;
c9df56b4
JM		 11749
11750 nla_nest_end(msg, attr);
11751
3b7b72ee 11752 genlmsg_end(msg, hdr);
c9df56b4 11753
68eb5503 11754 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11755 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11756 return;
11757
11758 nla_put_failure:
11759 genlmsg_cancel(msg, hdr);
11760 nlmsg_free(msg);
11761}
11762
947add36
JB		 11763void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11764 const u8 *bssid, bool preauth, gfp_t gfp)
11765{
11766 struct wireless_dev *wdev = dev->ieee80211_ptr;
11767 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11768 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11769
11770 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11771 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11772}
11773EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11774
11775static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11776 struct net_device *netdev,
11777 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 11778 gfp_t gfp,
11779 enum nl80211_commands notif,
11780 u8 count)
5314526b
TP		 11781{
11782 struct sk_buff *msg;
11783 void *hdr;
11784
58050fce 11785 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11786 if (!msg)
11787 return;
11788
f8d7552e 11789 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 11790 if (!hdr) {
11791 nlmsg_free(msg);
11792 return;
11793 }
11794
683b6d3b
JB		 11795 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11796 goto nla_put_failure;
11797
11798 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11799 goto nla_put_failure;
5314526b 11800
f8d7552e
LC		 11801 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
11802 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
11803 goto nla_put_failure;
11804
5314526b
TP		 11805 genlmsg_end(msg, hdr);
11806
68eb5503 11807 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11808 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11809 return;
11810
11811 nla_put_failure:
11812 genlmsg_cancel(msg, hdr);
11813 nlmsg_free(msg);
11814}
11815
947add36
JB		 11816void cfg80211_ch_switch_notify(struct net_device *dev,
11817 struct cfg80211_chan_def *chandef)
84f10708 11818{
947add36
JB		 11819 struct wireless_dev *wdev = dev->ieee80211_ptr;
11820 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11821 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11822
e487eaeb 11823 ASSERT_WDEV_LOCK(wdev);
947add36 11824
e487eaeb 11825 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 11826
9e0e2961 11827 wdev->chandef = *chandef;
96f55f12 11828 wdev->preset_chandef = *chandef;
f8d7552e
LC		 11829 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
11830 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 11831}
11832EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11833
f8d7552e
LC		 11834void cfg80211_ch_switch_started_notify(struct net_device *dev,
11835 struct cfg80211_chan_def *chandef,
11836 u8 count)
11837{
11838 struct wireless_dev *wdev = dev->ieee80211_ptr;
11839 struct wiphy *wiphy = wdev->wiphy;
11840 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11841
11842 trace_cfg80211_ch_switch_started_notify(dev, chandef);
11843
11844 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
11845 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
11846}
11847EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
11848
947add36
JB		 11849void cfg80211_cqm_txe_notify(struct net_device *dev,
11850 const u8 *peer, u32 num_packets,
11851 u32 rate, u32 intvl, gfp_t gfp)
11852{
11853 struct wireless_dev *wdev = dev->ieee80211_ptr;
11854 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11855 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11856 struct sk_buff *msg;
11857 struct nlattr *pinfoattr;
11858 void *hdr;
11859
11860 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11861 if (!msg)
11862 return;
11863
11864 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11865 if (!hdr) {
11866 nlmsg_free(msg);
11867 return;
11868 }
11869
11870 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11871 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11872 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11873 goto nla_put_failure;
11874
11875 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11876 if (!pinfoattr)
11877 goto nla_put_failure;
11878
11879 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11880 goto nla_put_failure;
11881
11882 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11883 goto nla_put_failure;
11884
11885 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11886 goto nla_put_failure;
11887
11888 nla_nest_end(msg, pinfoattr);
11889
11890 genlmsg_end(msg, hdr);
11891
68eb5503 11892 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11893 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11894 return;
11895
11896 nla_put_failure:
11897 genlmsg_cancel(msg, hdr);
11898 nlmsg_free(msg);
11899}
947add36 11900EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11901
04f39047
SW		 11902void
11903nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11904 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11905 enum nl80211_radar_event event,
11906 struct net_device *netdev, gfp_t gfp)
11907{
11908 struct sk_buff *msg;
11909 void *hdr;
11910
11911 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11912 if (!msg)
11913 return;
11914
11915 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11916 if (!hdr) {
11917 nlmsg_free(msg);
11918 return;
11919 }
11920
11921 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11922 goto nla_put_failure;
11923
11924 /* NOP and radar events don't need a netdev parameter */
11925 if (netdev) {
11926 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11927
11928 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11929 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11930 goto nla_put_failure;
11931 }
11932
11933 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11934 goto nla_put_failure;
11935
11936 if (nl80211_send_chandef(msg, chandef))
11937 goto nla_put_failure;
11938
9c90a9f6 11939 genlmsg_end(msg, hdr);
04f39047 11940
68eb5503 11941 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11942 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11943 return;
11944
11945 nla_put_failure:
11946 genlmsg_cancel(msg, hdr);
11947 nlmsg_free(msg);
11948}
11949
947add36
JB		 11950void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11951 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11952{
947add36
JB		 11953 struct wireless_dev *wdev = dev->ieee80211_ptr;
11954 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11955 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11956 struct sk_buff *msg;
11957 struct nlattr *pinfoattr;
11958 void *hdr;
11959
947add36
JB		 11960 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11961
58050fce 11962 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11963 if (!msg)
11964 return;
11965
11966 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11967 if (!hdr) {
11968 nlmsg_free(msg);
11969 return;
11970 }
11971
9360ffd1 11972 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11973 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11974 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11975 goto nla_put_failure;
c063dbf5
JB		 11976
11977 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11978 if (!pinfoattr)
11979 goto nla_put_failure;
11980
9360ffd1
DM		 11981 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11982 goto nla_put_failure;
c063dbf5
JB		 11983
11984 nla_nest_end(msg, pinfoattr);
11985
3b7b72ee 11986 genlmsg_end(msg, hdr);
c063dbf5 11987
68eb5503 11988 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11989 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11990 return;
11991
11992 nla_put_failure:
11993 genlmsg_cancel(msg, hdr);
11994 nlmsg_free(msg);
11995}
947add36 11996EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11997
7f6cf311
JB		 11998void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11999 u64 cookie, bool acked, gfp_t gfp)
12000{
12001 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12002 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12003 struct sk_buff *msg;
12004 void *hdr;
7f6cf311 12005
4ee3e063
BL		 12006 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12007
58050fce 12008 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12009
7f6cf311
JB		 12010 if (!msg)
12011 return;
12012
12013 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12014 if (!hdr) {
12015 nlmsg_free(msg);
12016 return;
12017 }
12018
9360ffd1
DM		 12019 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12020 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12021 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12022 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12023 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12024 goto nla_put_failure;
7f6cf311 12025
9c90a9f6 12026 genlmsg_end(msg, hdr);
7f6cf311 12027
68eb5503 12028 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12029 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12030 return;
12031
12032 nla_put_failure:
12033 genlmsg_cancel(msg, hdr);
12034 nlmsg_free(msg);
12035}
12036EXPORT_SYMBOL(cfg80211_probe_status);
12037
5e760230
JB		 12038void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12039 const u8 *frame, size_t len,
37c73b5f 12040 int freq, int sig_dbm)
5e760230 12041{
f26cbf40 12042 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12043 struct sk_buff *msg;
12044 void *hdr;
37c73b5f 12045 struct cfg80211_beacon_registration *reg;
5e760230 12046
4ee3e063
BL		 12047 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12048
37c73b5f
BG		 12049 spin_lock_bh(&rdev->beacon_registrations_lock);
12050 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12051 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12052 if (!msg) {
12053 spin_unlock_bh(&rdev->beacon_registrations_lock);
12054 return;
12055 }
5e760230 12056
37c73b5f
BG		 12057 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12058 if (!hdr)
12059 goto nla_put_failure;
5e760230 12060
37c73b5f
BG		 12061 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12062 (freq &&
12063 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12064 (sig_dbm &&
12065 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12066 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12067 goto nla_put_failure;
5e760230 12068
37c73b5f 12069 genlmsg_end(msg, hdr);
5e760230 12070
37c73b5f
BG		 12071 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12072 }
12073 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12074 return;
12075
12076 nla_put_failure:
37c73b5f
BG		 12077 spin_unlock_bh(&rdev->beacon_registrations_lock);
12078 if (hdr)
12079 genlmsg_cancel(msg, hdr);
5e760230
JB		 12080 nlmsg_free(msg);
12081}
12082EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12083
cd8f7cb4
JB		 12084#ifdef CONFIG_PM
12085void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12086 struct cfg80211_wowlan_wakeup *wakeup,
12087 gfp_t gfp)
12088{
f26cbf40 12089 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12090 struct sk_buff *msg;
12091 void *hdr;
9c90a9f6 12092 int size = 200;
cd8f7cb4
JB		 12093
12094 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12095
12096 if (wakeup)
12097 size += wakeup->packet_present_len;
12098
12099 msg = nlmsg_new(size, gfp);
12100 if (!msg)
12101 return;
12102
12103 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12104 if (!hdr)
12105 goto free_msg;
12106
12107 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12108 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12109 goto free_msg;
12110
12111 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12112 wdev->netdev->ifindex))
12113 goto free_msg;
12114
12115 if (wakeup) {
12116 struct nlattr *reasons;
12117
12118 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12119 if (!reasons)
12120 goto free_msg;
cd8f7cb4
JB		 12121
12122 if (wakeup->disconnect &&
12123 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12124 goto free_msg;
12125 if (wakeup->magic_pkt &&
12126 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12127 goto free_msg;
12128 if (wakeup->gtk_rekey_failure &&
12129 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12130 goto free_msg;
12131 if (wakeup->eap_identity_req &&
12132 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12133 goto free_msg;
12134 if (wakeup->four_way_handshake &&
12135 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12136 goto free_msg;
12137 if (wakeup->rfkill_release &&
12138 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12139 goto free_msg;
12140
12141 if (wakeup->pattern_idx >= 0 &&
12142 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12143 wakeup->pattern_idx))
12144 goto free_msg;
12145
ae917c9f
JB		 12146 if (wakeup->tcp_match &&
12147 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12148 goto free_msg;
2a0e047e 12149
ae917c9f
JB		 12150 if (wakeup->tcp_connlost &&
12151 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12152 goto free_msg;
2a0e047e 12153
ae917c9f
JB		 12154 if (wakeup->tcp_nomoretokens &&
12155 nla_put_flag(msg,
12156 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12157 goto free_msg;
2a0e047e 12158
cd8f7cb4
JB		 12159 if (wakeup->packet) {
12160 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12161 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12162
12163 if (!wakeup->packet_80211) {
12164 pkt_attr =
12165 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12166 len_attr =
12167 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12168 }
12169
12170 if (wakeup->packet_len &&
12171 nla_put_u32(msg, len_attr, wakeup->packet_len))
12172 goto free_msg;
12173
12174 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12175 wakeup->packet))
12176 goto free_msg;
12177 }
12178
12179 nla_nest_end(msg, reasons);
12180 }
12181
9c90a9f6 12182 genlmsg_end(msg, hdr);
cd8f7cb4 12183
68eb5503 12184 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12185 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12186 return;
12187
12188 free_msg:
12189 nlmsg_free(msg);
12190}
12191EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12192#endif
12193
3475b094
JM		 12194void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12195 enum nl80211_tdls_operation oper,
12196 u16 reason_code, gfp_t gfp)
12197{
12198 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12199 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12200 struct sk_buff *msg;
12201 void *hdr;
3475b094
JM		 12202
12203 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12204 reason_code);
12205
12206 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12207 if (!msg)
12208 return;
12209
12210 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12211 if (!hdr) {
12212 nlmsg_free(msg);
12213 return;
12214 }
12215
12216 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12217 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12218 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12219 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12220 (reason_code > 0 &&
12221 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12222 goto nla_put_failure;
12223
9c90a9f6 12224 genlmsg_end(msg, hdr);
3475b094 12225
68eb5503 12226 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12227 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12228 return;
12229
12230 nla_put_failure:
12231 genlmsg_cancel(msg, hdr);
12232 nlmsg_free(msg);
12233}
12234EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12235
026331c4
JM		 12236static int nl80211_netlink_notify(struct notifier_block * nb,
12237 unsigned long state,
12238 void *_notify)
12239{
12240 struct netlink_notify *notify = _notify;
12241 struct cfg80211_registered_device *rdev;
12242 struct wireless_dev *wdev;
37c73b5f 12243 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12244
12245 if (state != NETLINK_URELEASE)
12246 return NOTIFY_DONE;
12247
12248 rcu_read_lock();
12249
5e760230 12250 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 12251 bool schedule_destroy_work = false;
12252
12253 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12254 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12255
78f22b6a
JB		 12256 if (wdev->owner_nlportid == notify->portid)
12257 schedule_destroy_work = true;
12258 }
12259
37c73b5f
BG		 12260 spin_lock_bh(&rdev->beacon_registrations_lock);
12261 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12262 list) {
12263 if (reg->nlportid == notify->portid) {
12264 list_del(&reg->list);
12265 kfree(reg);
12266 break;
12267 }
12268 }
12269 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12270
12271 if (schedule_destroy_work) {
12272 struct cfg80211_iface_destroy *destroy;
12273
12274 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12275 if (destroy) {
12276 destroy->nlportid = notify->portid;
12277 spin_lock(&rdev->destroy_list_lock);
12278 list_add(&destroy->list, &rdev->destroy_list);
12279 spin_unlock(&rdev->destroy_list_lock);
12280 schedule_work(&rdev->destroy_work);
12281 }
12282 }
5e760230 12283 }
026331c4
JM		 12284
12285 rcu_read_unlock();
12286
6784c7db 12287 return NOTIFY_OK;
026331c4
JM		 12288}
12289
12290static struct notifier_block nl80211_netlink_notifier = {
12291 .notifier_call = nl80211_netlink_notify,
12292};
12293
355199e0
JM		 12294void cfg80211_ft_event(struct net_device *netdev,
12295 struct cfg80211_ft_event_params *ft_event)
12296{
12297 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12298 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12299 struct sk_buff *msg;
12300 void *hdr;
355199e0
JM		 12301
12302 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12303
12304 if (!ft_event->target_ap)
12305 return;
12306
12307 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12308 if (!msg)
12309 return;
12310
12311 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12312 if (!hdr)
12313 goto out;
355199e0 12314
ae917c9f
JB		 12315 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12316 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12317 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12318 goto out;
355199e0 12319
ae917c9f
JB		 12320 if (ft_event->ies &&
12321 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12322 goto out;
12323 if (ft_event->ric_ies &&
12324 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12325 ft_event->ric_ies))
12326 goto out;
355199e0 12327
9c90a9f6 12328 genlmsg_end(msg, hdr);
355199e0 12329
68eb5503 12330 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12331 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12332 return;
12333 out:
12334 nlmsg_free(msg);
355199e0
JM		 12335}
12336EXPORT_SYMBOL(cfg80211_ft_event);
12337
5de17984
AS		 12338void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12339{
12340 struct cfg80211_registered_device *rdev;
12341 struct sk_buff *msg;
12342 void *hdr;
12343 u32 nlportid;
12344
f26cbf40 12345 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12346 if (!rdev->crit_proto_nlportid)
12347 return;
12348
12349 nlportid = rdev->crit_proto_nlportid;
12350 rdev->crit_proto_nlportid = 0;
12351
12352 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12353 if (!msg)
12354 return;
12355
12356 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12357 if (!hdr)
12358 goto nla_put_failure;
12359
12360 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12361 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12362 goto nla_put_failure;
12363
12364 genlmsg_end(msg, hdr);
12365
12366 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12367 return;
12368
12369 nla_put_failure:
12370 if (hdr)
12371 genlmsg_cancel(msg, hdr);
12372 nlmsg_free(msg);
12373
12374}
12375EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12376
348baf0e
JB		 12377void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12378{
12379 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12380 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12381 struct sk_buff *msg;
12382 void *hdr;
12383
12384 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12385 if (!msg)
12386 return;
12387
12388 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12389 if (!hdr)
12390 goto out;
12391
12392 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12393 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12394 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12395 goto out;
12396
12397 genlmsg_end(msg, hdr);
12398
12399 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12400 NL80211_MCGRP_MLME, GFP_KERNEL);
12401 return;
12402 out:
12403 nlmsg_free(msg);
12404}
12405
55682965
JB		 12406/* initialisation/exit functions */
12407
12408int nl80211_init(void)
12409{
0d63cbb5 12410 int err;
55682965 12411
2a94fe48
JB		 12412 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12413 nl80211_mcgrps);
55682965
JB		 12414 if (err)
12415 return err;
12416
026331c4
JM		 12417 err = netlink_register_notifier(&nl80211_netlink_notifier);
12418 if (err)
12419 goto err_out;
12420
55682965
JB		 12421 return 0;
12422 err_out:
12423 genl_unregister_family(&nl80211_fam);
12424 return err;
12425}
12426
12427void nl80211_exit(void)
12428{
026331c4 12429 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12430 genl_unregister_family(&nl80211_fam);
12431}
ubuntu-bionic-kernel mirror