]> 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
mac80211: enable TPC through mac80211 stack
[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[] = {
71b836ec
JB		 62 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
63 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
64 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
65 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
66 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
2a94fe48 67#ifdef CONFIG_NL80211_TESTMODE
71b836ec 68 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 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 */
8cd4d456 212static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
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 },
18e5ca65 391 [NL80211_ATTR_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 },
ad2b26ab 398 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 399 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 400 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
55682965
JB		 401};
402
e31b8213 403/* policy for the key attributes */
b54452b0 404static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 405 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 406 [NL80211_KEY_IDX] = { .type = NLA_U8 },
407 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 408 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 409 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
410 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 411 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 412 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
413};
414
415/* policy for the key default flags */
416static const struct nla_policy
417nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
418 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
419 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 420};
421
ff1b6e69
JB		 422/* policy for WoWLAN attributes */
423static const struct nla_policy
424nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
425 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
426 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
427 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 429 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
431 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
432 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 433 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 434 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 435};
436
437static const struct nla_policy
438nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
439 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
440 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
441 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
442 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
443 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
444 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
445 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
446 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
447 },
448 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
449 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
450 },
451 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
452 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
453 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 454};
455
be29b99a
AK		 456/* policy for coalesce rule attributes */
457static const struct nla_policy
458nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
459 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
460 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
461 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
462};
463
e5497d76
JB		 464/* policy for GTK rekey offload attributes */
465static const struct nla_policy
466nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
467 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
468 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
469 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
470};
471
a1f1c21c
LC		 472static const struct nla_policy
473nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 474 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 475 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 476 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 477};
478
97990a06
JB		 479static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
480 struct netlink_callback *cb,
481 struct cfg80211_registered_device **rdev,
482 struct wireless_dev **wdev)
a043897a 483{
97990a06 484 int err;
a043897a 485
97990a06 486 rtnl_lock();
a043897a 487
97990a06
JB		 488 if (!cb->args[0]) {
489 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
490 nl80211_fam.attrbuf, nl80211_fam.maxattr,
491 nl80211_policy);
492 if (err)
493 goto out_unlock;
67748893 494
97990a06
JB		 495 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
496 nl80211_fam.attrbuf);
497 if (IS_ERR(*wdev)) {
498 err = PTR_ERR(*wdev);
499 goto out_unlock;
500 }
f26cbf40 501 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 502 /* 0 is the first index - add 1 to parse only once */
503 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 504 cb->args[1] = (*wdev)->identifier;
505 } else {
c319d50b
JB		 506 /* subtract the 1 again here */
507 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 508 struct wireless_dev *tmp;
67748893 509
97990a06
JB		 510 if (!wiphy) {
511 err = -ENODEV;
512 goto out_unlock;
513 }
f26cbf40 514 *rdev = wiphy_to_rdev(wiphy);
97990a06 515 *wdev = NULL;
67748893 516
97990a06
JB		 517 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
518 if (tmp->identifier == cb->args[1]) {
519 *wdev = tmp;
520 break;
521 }
522 }
67748893 523
97990a06
JB		 524 if (!*wdev) {
525 err = -ENODEV;
526 goto out_unlock;
527 }
67748893
JB		 528 }
529
67748893 530 return 0;
97990a06 531 out_unlock:
67748893
JB		 532 rtnl_unlock();
533 return err;
534}
535
97990a06 536static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 537{
67748893
JB		 538 rtnl_unlock();
539}
540
f4a11bb0
JB		 541/* IE validation */
542static bool is_valid_ie_attr(const struct nlattr *attr)
543{
544 const u8 *pos;
545 int len;
546
547 if (!attr)
548 return true;
549
550 pos = nla_data(attr);
551 len = nla_len(attr);
552
553 while (len) {
554 u8 elemlen;
555
556 if (len < 2)
557 return false;
558 len -= 2;
559
560 elemlen = pos[1];
561 if (elemlen > len)
562 return false;
563
564 len -= elemlen;
565 pos += 2 + elemlen;
566 }
567
568 return true;
569}
570
55682965 571/* message building helper */
15e47304 572static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 573 int flags, u8 cmd)
574{
575 /* since there is no private header just add the generic one */
15e47304 576 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 577}
578
5dab3b8a 579static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 580 struct ieee80211_channel *chan,
581 bool large)
5dab3b8a 582{
ea077c1c
RL		 583 /* Some channels must be completely excluded from the
584 * list to protect old user-space tools from breaking
585 */
586 if (!large && chan->flags &
587 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
588 return 0;
589
9360ffd1
DM		 590 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
591 chan->center_freq))
592 goto nla_put_failure;
5dab3b8a 593
9360ffd1
DM		 594 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
595 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
596 goto nla_put_failure;
8fe02e16
LR		 597 if (chan->flags & IEEE80211_CHAN_NO_IR) {
598 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
599 goto nla_put_failure;
600 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
601 goto nla_put_failure;
602 }
cdc89b97
JB		 603 if (chan->flags & IEEE80211_CHAN_RADAR) {
604 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
605 goto nla_put_failure;
606 if (large) {
607 u32 time;
608
609 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
610
611 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
612 chan->dfs_state))
613 goto nla_put_failure;
614 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
615 time))
616 goto nla_put_failure;
089027e5
JD		 617 if (nla_put_u32(msg,
618 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
619 chan->dfs_cac_ms))
620 goto nla_put_failure;
cdc89b97
JB		 621 }
622 }
5dab3b8a 623
fe1abafd
JB		 624 if (large) {
625 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
626 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
627 goto nla_put_failure;
628 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
629 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
630 goto nla_put_failure;
631 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
632 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
633 goto nla_put_failure;
634 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
635 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
636 goto nla_put_failure;
570dbde1
DS		 637 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
638 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
639 goto nla_put_failure;
640 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
641 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
642 goto nla_put_failure;
ea077c1c
RL		 643 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
644 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
645 goto nla_put_failure;
646 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
647 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
648 goto nla_put_failure;
fe1abafd
JB		 649 }
650
9360ffd1
DM		 651 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
652 DBM_TO_MBM(chan->max_power)))
653 goto nla_put_failure;
5dab3b8a
LR		 654
655 return 0;
656
657 nla_put_failure:
658 return -ENOBUFS;
659}
660
55682965
JB		 661/* netlink command implementations */
662
b9454e83
JB		 663struct key_parse {
664 struct key_params p;
665 int idx;
e31b8213 666 int type;
b9454e83 667 bool def, defmgmt;
dbd2fd65 668 bool def_uni, def_multi;
b9454e83
JB		 669};
670
671static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
672{
673 struct nlattr *tb[NL80211_KEY_MAX + 1];
674 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
675 nl80211_key_policy);
676 if (err)
677 return err;
678
679 k->def = !!tb[NL80211_KEY_DEFAULT];
680 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
681
dbd2fd65
JB		 682 if (k->def) {
683 k->def_uni = true;
684 k->def_multi = true;
685 }
686 if (k->defmgmt)
687 k->def_multi = true;
688
b9454e83
JB		 689 if (tb[NL80211_KEY_IDX])
690 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
691
692 if (tb[NL80211_KEY_DATA]) {
693 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
694 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
695 }
696
697 if (tb[NL80211_KEY_SEQ]) {
698 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
699 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
700 }
701
702 if (tb[NL80211_KEY_CIPHER])
703 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
704
e31b8213
JB		 705 if (tb[NL80211_KEY_TYPE]) {
706 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
707 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
708 return -EINVAL;
709 }
710
dbd2fd65
JB		 711 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
712 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 713 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
714 tb[NL80211_KEY_DEFAULT_TYPES],
715 nl80211_key_default_policy);
dbd2fd65
JB		 716 if (err)
717 return err;
718
719 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
720 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
721 }
722
b9454e83
JB		 723 return 0;
724}
725
726static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
727{
728 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
729 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
730 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
731 }
732
733 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
734 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
735 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
736 }
737
738 if (info->attrs[NL80211_ATTR_KEY_IDX])
739 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
740
741 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
742 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
743
744 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
745 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
746
dbd2fd65
JB		 747 if (k->def) {
748 k->def_uni = true;
749 k->def_multi = true;
750 }
751 if (k->defmgmt)
752 k->def_multi = true;
753
e31b8213
JB		 754 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
755 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
756 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
757 return -EINVAL;
758 }
759
dbd2fd65
JB		 760 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
761 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
762 int err = nla_parse_nested(
763 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
764 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
765 nl80211_key_default_policy);
766 if (err)
767 return err;
768
769 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
770 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
771 }
772
b9454e83
JB		 773 return 0;
774}
775
776static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
777{
778 int err;
779
780 memset(k, 0, sizeof(*k));
781 k->idx = -1;
e31b8213 782 k->type = -1;
b9454e83
JB		 783
784 if (info->attrs[NL80211_ATTR_KEY])
785 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
786 else
787 err = nl80211_parse_key_old(info, k);
788
789 if (err)
790 return err;
791
792 if (k->def && k->defmgmt)
793 return -EINVAL;
794
dbd2fd65
JB		 795 if (k->defmgmt) {
796 if (k->def_uni || !k->def_multi)
797 return -EINVAL;
798 }
799
b9454e83
JB		 800 if (k->idx != -1) {
801 if (k->defmgmt) {
802 if (k->idx < 4 || k->idx > 5)
803 return -EINVAL;
804 } else if (k->def) {
805 if (k->idx < 0 || k->idx > 3)
806 return -EINVAL;
807 } else {
808 if (k->idx < 0 || k->idx > 5)
809 return -EINVAL;
810 }
811 }
812
813 return 0;
814}
815
fffd0934
JB		 816static struct cfg80211_cached_keys *
817nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 818 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 819{
820 struct key_parse parse;
821 struct nlattr *key;
822 struct cfg80211_cached_keys *result;
823 int rem, err, def = 0;
824
825 result = kzalloc(sizeof(*result), GFP_KERNEL);
826 if (!result)
827 return ERR_PTR(-ENOMEM);
828
829 result->def = -1;
830 result->defmgmt = -1;
831
832 nla_for_each_nested(key, keys, rem) {
833 memset(&parse, 0, sizeof(parse));
834 parse.idx = -1;
835
836 err = nl80211_parse_key_new(key, &parse);
837 if (err)
838 goto error;
839 err = -EINVAL;
840 if (!parse.p.key)
841 goto error;
842 if (parse.idx < 0 || parse.idx > 4)
843 goto error;
844 if (parse.def) {
845 if (def)
846 goto error;
847 def = 1;
848 result->def = parse.idx;
dbd2fd65
JB		 849 if (!parse.def_uni || !parse.def_multi)
850 goto error;
fffd0934
JB		 851 } else if (parse.defmgmt)
852 goto error;
853 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 854 parse.idx, false, NULL);
fffd0934
JB		 855 if (err)
856 goto error;
857 result->params[parse.idx].cipher = parse.p.cipher;
858 result->params[parse.idx].key_len = parse.p.key_len;
859 result->params[parse.idx].key = result->data[parse.idx];
860 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 861
862 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
863 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
864 if (no_ht)
865 *no_ht = true;
866 }
fffd0934
JB		 867 }
868
869 return result;
870 error:
871 kfree(result);
872 return ERR_PTR(err);
873}
874
875static int nl80211_key_allowed(struct wireless_dev *wdev)
876{
877 ASSERT_WDEV_LOCK(wdev);
878
fffd0934
JB		 879 switch (wdev->iftype) {
880 case NL80211_IFTYPE_AP:
881 case NL80211_IFTYPE_AP_VLAN:
074ac8df 882 case NL80211_IFTYPE_P2P_GO:
ff973af7 883 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 884 break;
885 case NL80211_IFTYPE_ADHOC:
fffd0934 886 case NL80211_IFTYPE_STATION:
074ac8df 887 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 888 if (!wdev->current_bss)
fffd0934
JB		 889 return -ENOLINK;
890 break;
de4fcbad 891 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 892 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 893 case NL80211_IFTYPE_MONITOR:
894 case NL80211_IFTYPE_P2P_DEVICE:
895 case NL80211_IFTYPE_WDS:
896 case NUM_NL80211_IFTYPES:
fffd0934
JB		 897 return -EINVAL;
898 }
899
900 return 0;
901}
902
664834de
JM		 903static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
904 struct nlattr *tb)
905{
906 struct ieee80211_channel *chan;
907
908 if (tb == NULL)
909 return NULL;
910 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
911 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
912 return NULL;
913 return chan;
914}
915
7527a782
JB		 916static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
917{
918 struct nlattr *nl_modes = nla_nest_start(msg, attr);
919 int i;
920
921 if (!nl_modes)
922 goto nla_put_failure;
923
924 i = 0;
925 while (ifmodes) {
9360ffd1
DM		 926 if ((ifmodes & 1) && nla_put_flag(msg, i))
927 goto nla_put_failure;
7527a782
JB		 928 ifmodes >>= 1;
929 i++;
930 }
931
932 nla_nest_end(msg, nl_modes);
933 return 0;
934
935nla_put_failure:
936 return -ENOBUFS;
937}
938
939static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 940 struct sk_buff *msg,
941 bool large)
7527a782
JB		 942{
943 struct nlattr *nl_combis;
944 int i, j;
945
946 nl_combis = nla_nest_start(msg,
947 NL80211_ATTR_INTERFACE_COMBINATIONS);
948 if (!nl_combis)
949 goto nla_put_failure;
950
951 for (i = 0; i < wiphy->n_iface_combinations; i++) {
952 const struct ieee80211_iface_combination *c;
953 struct nlattr *nl_combi, *nl_limits;
954
955 c = &wiphy->iface_combinations[i];
956
957 nl_combi = nla_nest_start(msg, i + 1);
958 if (!nl_combi)
959 goto nla_put_failure;
960
961 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
962 if (!nl_limits)
963 goto nla_put_failure;
964
965 for (j = 0; j < c->n_limits; j++) {
966 struct nlattr *nl_limit;
967
968 nl_limit = nla_nest_start(msg, j + 1);
969 if (!nl_limit)
970 goto nla_put_failure;
9360ffd1
DM		 971 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
972 c->limits[j].max))
973 goto nla_put_failure;
7527a782
JB		 974 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
975 c->limits[j].types))
976 goto nla_put_failure;
977 nla_nest_end(msg, nl_limit);
978 }
979
980 nla_nest_end(msg, nl_limits);
981
9360ffd1
DM		 982 if (c->beacon_int_infra_match &&
983 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
984 goto nla_put_failure;
985 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
986 c->num_different_channels) ||
987 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
988 c->max_interfaces))
989 goto nla_put_failure;
cdc89b97 990 if (large &&
8c48b50a
FF		 991 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
992 c->radar_detect_widths) ||
993 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
994 c->radar_detect_regions)))
cdc89b97 995 goto nla_put_failure;
7527a782
JB		 996
997 nla_nest_end(msg, nl_combi);
998 }
999
1000 nla_nest_end(msg, nl_combis);
1001
1002 return 0;
1003nla_put_failure:
1004 return -ENOBUFS;
1005}
1006
3713b4e3 1007#ifdef CONFIG_PM
b56cf720
JB		 1008static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1009 struct sk_buff *msg)
1010{
964dc9e2 1011 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1012 struct nlattr *nl_tcp;
1013
1014 if (!tcp)
1015 return 0;
1016
1017 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1018 if (!nl_tcp)
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 (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1026 tcp->data_payload_max))
1027 return -ENOBUFS;
1028
1029 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1030 return -ENOBUFS;
1031
1032 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1033 sizeof(*tcp->tok), tcp->tok))
1034 return -ENOBUFS;
1035
1036 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1037 tcp->data_interval_max))
1038 return -ENOBUFS;
1039
1040 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1041 tcp->wake_payload_max))
1042 return -ENOBUFS;
1043
1044 nla_nest_end(msg, nl_tcp);
1045 return 0;
1046}
1047
3713b4e3 1048static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1049 struct cfg80211_registered_device *rdev,
b56cf720 1050 bool large)
55682965 1051{
3713b4e3 1052 struct nlattr *nl_wowlan;
55682965 1053
1b8ec87a 1054 if (!rdev->wiphy.wowlan)
3713b4e3 1055 return 0;
55682965 1056
3713b4e3
JB		 1057 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1058 if (!nl_wowlan)
1059 return -ENOBUFS;
9360ffd1 1060
1b8ec87a 1061 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1062 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1063 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1064 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1065 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1066 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1067 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1068 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1069 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1070 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1071 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1072 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1073 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1074 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1075 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1076 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1077 return -ENOBUFS;
9360ffd1 1078
1b8ec87a 1079 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1080 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1081 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1082 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1083 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1084 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1085 };
9360ffd1 1086
3713b4e3
JB		 1087 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1088 sizeof(pat), &pat))
1089 return -ENOBUFS;
1090 }
9360ffd1 1091
75453ccb
LC		 1092 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1093 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1094 rdev->wiphy.wowlan->max_nd_match_sets))
1095 return -ENOBUFS;
1096
1b8ec87a 1097 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1098 return -ENOBUFS;
1099
8cd4d456
LC		 1100 /* TODO: send wowlan net detect */
1101
3713b4e3 1102 nla_nest_end(msg, nl_wowlan);
9360ffd1 1103
3713b4e3
JB		 1104 return 0;
1105}
1106#endif
9360ffd1 1107
be29b99a 1108static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1109 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1110{
1111 struct nl80211_coalesce_rule_support rule;
1112
1b8ec87a 1113 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1114 return 0;
1115
1b8ec87a
ZG		 1116 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1117 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1118 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1119 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1120 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1121 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1122
1123 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1124 return -ENOBUFS;
1125
1126 return 0;
1127}
1128
3713b4e3
JB		 1129static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1130 struct ieee80211_supported_band *sband)
1131{
1132 struct nlattr *nl_rates, *nl_rate;
1133 struct ieee80211_rate *rate;
1134 int i;
87bbbe22 1135
3713b4e3
JB		 1136 /* add HT info */
1137 if (sband->ht_cap.ht_supported &&
1138 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1139 sizeof(sband->ht_cap.mcs),
1140 &sband->ht_cap.mcs) ||
1141 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1142 sband->ht_cap.cap) ||
1143 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1144 sband->ht_cap.ampdu_factor) ||
1145 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1146 sband->ht_cap.ampdu_density)))
1147 return -ENOBUFS;
afe0cbf8 1148
3713b4e3
JB		 1149 /* add VHT info */
1150 if (sband->vht_cap.vht_supported &&
1151 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1152 sizeof(sband->vht_cap.vht_mcs),
1153 &sband->vht_cap.vht_mcs) ||
1154 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1155 sband->vht_cap.cap)))
1156 return -ENOBUFS;
f59ac048 1157
3713b4e3
JB		 1158 /* add bitrates */
1159 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1160 if (!nl_rates)
1161 return -ENOBUFS;
ee688b00 1162
3713b4e3
JB		 1163 for (i = 0; i < sband->n_bitrates; i++) {
1164 nl_rate = nla_nest_start(msg, i);
1165 if (!nl_rate)
1166 return -ENOBUFS;
ee688b00 1167
3713b4e3
JB		 1168 rate = &sband->bitrates[i];
1169 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1170 rate->bitrate))
1171 return -ENOBUFS;
1172 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1173 nla_put_flag(msg,
1174 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1175 return -ENOBUFS;
ee688b00 1176
3713b4e3
JB		 1177 nla_nest_end(msg, nl_rate);
1178 }
d51626df 1179
3713b4e3 1180 nla_nest_end(msg, nl_rates);
bf0c111e 1181
3713b4e3
JB		 1182 return 0;
1183}
ee688b00 1184
3713b4e3
JB		 1185static int
1186nl80211_send_mgmt_stypes(struct sk_buff *msg,
1187 const struct ieee80211_txrx_stypes *mgmt_stypes)
1188{
1189 u16 stypes;
1190 struct nlattr *nl_ftypes, *nl_ifs;
1191 enum nl80211_iftype ift;
1192 int i;
ee688b00 1193
3713b4e3
JB		 1194 if (!mgmt_stypes)
1195 return 0;
5dab3b8a 1196
3713b4e3
JB		 1197 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1198 if (!nl_ifs)
1199 return -ENOBUFS;
e2f367f2 1200
3713b4e3
JB		 1201 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1202 nl_ftypes = nla_nest_start(msg, ift);
1203 if (!nl_ftypes)
1204 return -ENOBUFS;
1205 i = 0;
1206 stypes = mgmt_stypes[ift].tx;
1207 while (stypes) {
1208 if ((stypes & 1) &&
1209 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1210 (i << 4) | IEEE80211_FTYPE_MGMT))
1211 return -ENOBUFS;
1212 stypes >>= 1;
1213 i++;
ee688b00 1214 }
3713b4e3
JB		 1215 nla_nest_end(msg, nl_ftypes);
1216 }
ee688b00 1217
3713b4e3 1218 nla_nest_end(msg, nl_ifs);
ee688b00 1219
3713b4e3
JB		 1220 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1221 if (!nl_ifs)
1222 return -ENOBUFS;
ee688b00 1223
3713b4e3
JB		 1224 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1225 nl_ftypes = nla_nest_start(msg, ift);
1226 if (!nl_ftypes)
1227 return -ENOBUFS;
1228 i = 0;
1229 stypes = mgmt_stypes[ift].rx;
1230 while (stypes) {
1231 if ((stypes & 1) &&
1232 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1233 (i << 4) | IEEE80211_FTYPE_MGMT))
1234 return -ENOBUFS;
1235 stypes >>= 1;
1236 i++;
1237 }
1238 nla_nest_end(msg, nl_ftypes);
1239 }
1240 nla_nest_end(msg, nl_ifs);
ee688b00 1241
3713b4e3
JB		 1242 return 0;
1243}
ee688b00 1244
86e8cf98
JB		 1245struct nl80211_dump_wiphy_state {
1246 s64 filter_wiphy;
1247 long start;
1248 long split_start, band_start, chan_start;
1249 bool split;
1250};
1251
1b8ec87a 1252static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1253 enum nl80211_commands cmd,
3713b4e3 1254 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1255 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1256{
1257 void *hdr;
1258 struct nlattr *nl_bands, *nl_band;
1259 struct nlattr *nl_freqs, *nl_freq;
1260 struct nlattr *nl_cmds;
1261 enum ieee80211_band band;
1262 struct ieee80211_channel *chan;
1263 int i;
1264 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1265 rdev->wiphy.mgmt_stypes;
fe1abafd 1266 u32 features;
ee688b00 1267
3bb20556 1268 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1269 if (!hdr)
1270 return -ENOBUFS;
ee688b00 1271
86e8cf98
JB		 1272 if (WARN_ON(!state))
1273 return -EINVAL;
ee688b00 1274
1b8ec87a 1275 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1276 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1277 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1278 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1279 cfg80211_rdev_list_generation))
8fdc621d
JB		 1280 goto nla_put_failure;
1281
3bb20556
JB		 1282 if (cmd != NL80211_CMD_NEW_WIPHY)
1283 goto finish;
1284
86e8cf98 1285 switch (state->split_start) {
3713b4e3
JB		 1286 case 0:
1287 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1288 rdev->wiphy.retry_short) ||
3713b4e3 1289 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1290 rdev->wiphy.retry_long) ||
3713b4e3 1291 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1292 rdev->wiphy.frag_threshold) ||
3713b4e3 1293 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1294 rdev->wiphy.rts_threshold) ||
3713b4e3 1295 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1296 rdev->wiphy.coverage_class) ||
3713b4e3 1297 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1298 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1299 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1300 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1301 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1302 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1303 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1304 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1305 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1306 rdev->wiphy.max_match_sets))
9360ffd1 1307 goto nla_put_failure;
3713b4e3 1308
1b8ec87a 1309 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1310 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1311 goto nla_put_failure;
1b8ec87a 1312 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1313 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1314 goto nla_put_failure;
1b8ec87a 1315 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1316 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1317 goto nla_put_failure;
1b8ec87a 1318 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1319 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1320 goto nla_put_failure;
1b8ec87a 1321 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1322 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1323 goto nla_put_failure;
1b8ec87a 1324 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1325 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1326 goto nla_put_failure;
86e8cf98
JB		 1327 state->split_start++;
1328 if (state->split)
3713b4e3
JB		 1329 break;
1330 case 1:
1331 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1332 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1333 rdev->wiphy.cipher_suites))
3713b4e3 1334 goto nla_put_failure;
4745fc09 1335
3713b4e3 1336 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1337 rdev->wiphy.max_num_pmkids))
3713b4e3 1338 goto nla_put_failure;
b23aa676 1339
1b8ec87a 1340 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1341 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1342 goto nla_put_failure;
b23aa676 1343
3713b4e3 1344 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1345 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1346 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1347 rdev->wiphy.available_antennas_rx))
9360ffd1 1348 goto nla_put_failure;
b23aa676 1349
1b8ec87a 1350 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1351 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1352 rdev->wiphy.probe_resp_offload))
3713b4e3 1353 goto nla_put_failure;
8fdc621d 1354
1b8ec87a
ZG		 1355 if ((rdev->wiphy.available_antennas_tx ||
1356 rdev->wiphy.available_antennas_rx) &&
1357 rdev->ops->get_antenna) {
3713b4e3
JB		 1358 u32 tx_ant = 0, rx_ant = 0;
1359 int res;
1b8ec87a 1360 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1361 if (!res) {
1362 if (nla_put_u32(msg,
1363 NL80211_ATTR_WIPHY_ANTENNA_TX,
1364 tx_ant) ||
1365 nla_put_u32(msg,
1366 NL80211_ATTR_WIPHY_ANTENNA_RX,
1367 rx_ant))
1368 goto nla_put_failure;
1369 }
1370 }
a293911d 1371
86e8cf98
JB		 1372 state->split_start++;
1373 if (state->split)
3713b4e3
JB		 1374 break;
1375 case 2:
1376 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1377 rdev->wiphy.interface_modes))
3713b4e3 1378 goto nla_put_failure;
86e8cf98
JB		 1379 state->split_start++;
1380 if (state->split)
3713b4e3
JB		 1381 break;
1382 case 3:
1383 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1384 if (!nl_bands)
1385 goto nla_put_failure;
f7ca38df 1386
86e8cf98
JB		 1387 for (band = state->band_start;
1388 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1389 struct ieee80211_supported_band *sband;
2e161f78 1390
1b8ec87a 1391 sband = rdev->wiphy.bands[band];
2e161f78 1392
3713b4e3
JB		 1393 if (!sband)
1394 continue;
1395
1396 nl_band = nla_nest_start(msg, band);
1397 if (!nl_band)
2e161f78 1398 goto nla_put_failure;
3713b4e3 1399
86e8cf98 1400 switch (state->chan_start) {
3713b4e3
JB		 1401 case 0:
1402 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1403 goto nla_put_failure;
86e8cf98
JB		 1404 state->chan_start++;
1405 if (state->split)
3713b4e3
JB		 1406 break;
1407 default:
1408 /* add frequencies */
1409 nl_freqs = nla_nest_start(
1410 msg, NL80211_BAND_ATTR_FREQS);
1411 if (!nl_freqs)
1412 goto nla_put_failure;
1413
86e8cf98 1414 for (i = state->chan_start - 1;
3713b4e3
JB		 1415 i < sband->n_channels;
1416 i++) {
1417 nl_freq = nla_nest_start(msg, i);
1418 if (!nl_freq)
1419 goto nla_put_failure;
1420
1421 chan = &sband->channels[i];
1422
86e8cf98
JB		 1423 if (nl80211_msg_put_channel(
1424 msg, chan,
1425 state->split))
3713b4e3
JB		 1426 goto nla_put_failure;
1427
1428 nla_nest_end(msg, nl_freq);
86e8cf98 1429 if (state->split)
3713b4e3
JB		 1430 break;
1431 }
1432 if (i < sband->n_channels)
86e8cf98 1433 state->chan_start = i + 2;
3713b4e3 1434 else
86e8cf98 1435 state->chan_start = 0;
3713b4e3
JB		 1436 nla_nest_end(msg, nl_freqs);
1437 }
1438
1439 nla_nest_end(msg, nl_band);
1440
86e8cf98 1441 if (state->split) {
3713b4e3 1442 /* start again here */
86e8cf98 1443 if (state->chan_start)
3713b4e3
JB		 1444 band--;
1445 break;
2e161f78 1446 }
2e161f78 1447 }
3713b4e3 1448 nla_nest_end(msg, nl_bands);
2e161f78 1449
3713b4e3 1450 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1451 state->band_start = band + 1;
3713b4e3 1452 else
86e8cf98 1453 state->band_start = 0;
74b70a4e 1454
3713b4e3 1455 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1456 if (state->band_start == 0 && state->chan_start == 0)
1457 state->split_start++;
1458 if (state->split)
3713b4e3
JB		 1459 break;
1460 case 4:
1461 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1462 if (!nl_cmds)
2e161f78
JB		 1463 goto nla_put_failure;
1464
3713b4e3
JB		 1465 i = 0;
1466#define CMD(op, n) \
1467 do { \
1b8ec87a 1468 if (rdev->ops->op) { \
3713b4e3
JB		 1469 i++; \
1470 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1471 goto nla_put_failure; \
1472 } \
1473 } while (0)
1474
1475 CMD(add_virtual_intf, NEW_INTERFACE);
1476 CMD(change_virtual_intf, SET_INTERFACE);
1477 CMD(add_key, NEW_KEY);
1478 CMD(start_ap, START_AP);
1479 CMD(add_station, NEW_STATION);
1480 CMD(add_mpath, NEW_MPATH);
1481 CMD(update_mesh_config, SET_MESH_CONFIG);
1482 CMD(change_bss, SET_BSS);
1483 CMD(auth, AUTHENTICATE);
1484 CMD(assoc, ASSOCIATE);
1485 CMD(deauth, DEAUTHENTICATE);
1486 CMD(disassoc, DISASSOCIATE);
1487 CMD(join_ibss, JOIN_IBSS);
1488 CMD(join_mesh, JOIN_MESH);
1489 CMD(set_pmksa, SET_PMKSA);
1490 CMD(del_pmksa, DEL_PMKSA);
1491 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1492 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1493 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1494 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1495 CMD(mgmt_tx, FRAME);
1496 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1497 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1498 i++;
1499 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1500 goto nla_put_failure;
2e161f78 1501 }
1b8ec87a
ZG		 1502 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1503 rdev->ops->join_mesh) {
3713b4e3
JB		 1504 i++;
1505 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1506 goto nla_put_failure;
1507 }
1508 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1509 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1510 CMD(tdls_mgmt, TDLS_MGMT);
1511 CMD(tdls_oper, TDLS_OPER);
1512 }
1b8ec87a 1513 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1514 CMD(sched_scan_start, START_SCHED_SCAN);
1515 CMD(probe_client, PROBE_CLIENT);
1516 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1517 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1518 i++;
1519 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1520 goto nla_put_failure;
1521 }
1522 CMD(start_p2p_device, START_P2P_DEVICE);
1523 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1524#ifdef CONFIG_NL80211_TESTMODE
1525 CMD(testmode_cmd, TESTMODE);
1526#endif
86e8cf98 1527 if (state->split) {
5de17984
AS		 1528 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1529 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1530 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1531 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1532 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1533 if (rdev->wiphy.features &
1534 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1535 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1536 }
02df00eb 1537 /* add into the if now */
3713b4e3 1538#undef CMD
ff1b6e69 1539
1b8ec87a 1540 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1541 i++;
1542 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1543 goto nla_put_failure;
ff1b6e69
JB		 1544 }
1545
1b8ec87a 1546 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1547 i++;
1548 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1549 goto nla_put_failure;
1550 }
1551
1552 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1553 state->split_start++;
1554 if (state->split)
3713b4e3
JB		 1555 break;
1556 case 5:
1b8ec87a
ZG		 1557 if (rdev->ops->remain_on_channel &&
1558 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1559 nla_put_u32(msg,
1560 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1561 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1562 goto nla_put_failure;
1563
1b8ec87a 1564 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1565 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1566 goto nla_put_failure;
1567
1568 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1569 goto nla_put_failure;
86e8cf98
JB		 1570 state->split_start++;
1571 if (state->split)
3713b4e3
JB		 1572 break;
1573 case 6:
1574#ifdef CONFIG_PM
1b8ec87a 1575 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1576 goto nla_put_failure;
86e8cf98
JB		 1577 state->split_start++;
1578 if (state->split)
3713b4e3
JB		 1579 break;
1580#else
86e8cf98 1581 state->split_start++;
dfb89c56 1582#endif
3713b4e3
JB		 1583 case 7:
1584 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1585 rdev->wiphy.software_iftypes))
3713b4e3 1586 goto nla_put_failure;
ff1b6e69 1587
1b8ec87a 1588 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1589 state->split))
3713b4e3 1590 goto nla_put_failure;
7527a782 1591
86e8cf98
JB		 1592 state->split_start++;
1593 if (state->split)
3713b4e3
JB		 1594 break;
1595 case 8:
1b8ec87a 1596 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1597 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1598 rdev->wiphy.ap_sme_capa))
3713b4e3 1599 goto nla_put_failure;
7527a782 1600
1b8ec87a 1601 features = rdev->wiphy.features;
fe1abafd
JB		 1602 /*
1603 * We can only add the per-channel limit information if the
1604 * dump is split, otherwise it makes it too big. Therefore
1605 * only advertise it in that case.
1606 */
86e8cf98 1607 if (state->split)
fe1abafd
JB		 1608 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1609 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1610 goto nla_put_failure;
562a7480 1611
1b8ec87a 1612 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1613 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1614 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1615 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1616 goto nla_put_failure;
1f074bd8 1617
1b8ec87a
ZG		 1618 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1619 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1620 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1621 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1622 goto nla_put_failure;
7e7c8926 1623
3713b4e3
JB		 1624 /*
1625 * Any information below this point is only available to
1626 * applications that can deal with it being split. This
1627 * helps ensure that newly added capabilities don't break
1628 * older tools by overrunning their buffers.
1629 *
1630 * We still increment split_start so that in the split
1631 * case we'll continue with more data in the next round,
1632 * but break unconditionally so unsplit data stops here.
1633 */
86e8cf98 1634 state->split_start++;
3713b4e3
JB		 1635 break;
1636 case 9:
1b8ec87a 1637 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1638 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1639 rdev->wiphy.extended_capabilities_len,
1640 rdev->wiphy.extended_capabilities) ||
fe1abafd 1641 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1642 rdev->wiphy.extended_capabilities_len,
1643 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1644 goto nla_put_failure;
a50df0c4 1645
1b8ec87a 1646 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1647 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1648 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1649 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1650 goto nla_put_failure;
1651
be29b99a
AK		 1652 state->split_start++;
1653 break;
1654 case 10:
1b8ec87a 1655 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1656 goto nla_put_failure;
1657
1b8ec87a 1658 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1659 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1660 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1661 goto nla_put_failure;
b43504cf 1662
1b8ec87a 1663 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1664 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1665 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1666 goto nla_put_failure;
1667
ad7e718c
JB		 1668 state->split_start++;
1669 break;
1670 case 11:
1b8ec87a 1671 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1672 const struct nl80211_vendor_cmd_info *info;
1673 struct nlattr *nested;
1674
1675 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1676 if (!nested)
1677 goto nla_put_failure;
1678
1b8ec87a
ZG		 1679 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1680 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1681 if (nla_put(msg, i + 1, sizeof(*info), info))
1682 goto nla_put_failure;
1683 }
1684 nla_nest_end(msg, nested);
1685 }
1686
1b8ec87a 1687 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1688 const struct nl80211_vendor_cmd_info *info;
1689 struct nlattr *nested;
ad7e718c 1690
567ffc35
JB		 1691 nested = nla_nest_start(msg,
1692 NL80211_ATTR_VENDOR_EVENTS);
1693 if (!nested)
ad7e718c 1694 goto nla_put_failure;
567ffc35 1695
1b8ec87a
ZG		 1696 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1697 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1698 if (nla_put(msg, i + 1, sizeof(*info), info))
1699 goto nla_put_failure;
1700 }
1701 nla_nest_end(msg, nested);
1702 }
9a774c78
AO		 1703 state->split_start++;
1704 break;
1705 case 12:
1706 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1707 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1708 rdev->wiphy.max_num_csa_counters))
1709 goto nla_put_failure;
01e0daa4 1710
1bdd716c
AN		 1711 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1712 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1713 goto nla_put_failure;
1714
d75bb06b
GKS		 1715 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1716 sizeof(rdev->wiphy.ext_features),
1717 rdev->wiphy.ext_features))
1718 goto nla_put_failure;
1719
3713b4e3 1720 /* done */
86e8cf98 1721 state->split_start = 0;
3713b4e3
JB		 1722 break;
1723 }
3bb20556 1724 finish:
55682965
JB		 1725 return genlmsg_end(msg, hdr);
1726
1727 nla_put_failure:
bc3ed28c
TG		 1728 genlmsg_cancel(msg, hdr);
1729 return -EMSGSIZE;
55682965
JB		 1730}
1731
86e8cf98
JB		 1732static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1733 struct netlink_callback *cb,
1734 struct nl80211_dump_wiphy_state *state)
1735{
1736 struct nlattr **tb = nl80211_fam.attrbuf;
1737 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1738 tb, nl80211_fam.maxattr, nl80211_policy);
1739 /* ignore parse errors for backward compatibility */
1740 if (ret)
1741 return 0;
1742
1743 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1744 if (tb[NL80211_ATTR_WIPHY])
1745 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1746 if (tb[NL80211_ATTR_WDEV])
1747 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1748 if (tb[NL80211_ATTR_IFINDEX]) {
1749 struct net_device *netdev;
1750 struct cfg80211_registered_device *rdev;
1751 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1752
7f2b8562 1753 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1754 if (!netdev)
1755 return -ENODEV;
1756 if (netdev->ieee80211_ptr) {
f26cbf40 1757 rdev = wiphy_to_rdev(
86e8cf98
JB		 1758 netdev->ieee80211_ptr->wiphy);
1759 state->filter_wiphy = rdev->wiphy_idx;
1760 }
86e8cf98
JB		 1761 }
1762
1763 return 0;
1764}
1765
55682965
JB		 1766static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1767{
645e77de 1768 int idx = 0, ret;
86e8cf98 1769 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1770 struct cfg80211_registered_device *rdev;
3a5a423b 1771
5fe231e8 1772 rtnl_lock();
86e8cf98
JB		 1773 if (!state) {
1774 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1775 if (!state) {
1776 rtnl_unlock();
86e8cf98 1777 return -ENOMEM;
3713b4e3 1778 }
86e8cf98
JB		 1779 state->filter_wiphy = -1;
1780 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1781 if (ret) {
1782 kfree(state);
1783 rtnl_unlock();
1784 return ret;
3713b4e3 1785 }
86e8cf98 1786 cb->args[0] = (long)state;
3713b4e3
JB		 1787 }
1788
1b8ec87a
ZG		 1789 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1790 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1791 continue;
86e8cf98 1792 if (++idx <= state->start)
55682965 1793 continue;
86e8cf98 1794 if (state->filter_wiphy != -1 &&
1b8ec87a 1795 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1796 continue;
1797 /* attempt to fit multiple wiphy data chunks into the skb */
1798 do {
3bb20556
JB		 1799 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1800 skb,
3713b4e3
JB		 1801 NETLINK_CB(cb->skb).portid,
1802 cb->nlh->nlmsg_seq,
86e8cf98 1803 NLM_F_MULTI, state);
3713b4e3
JB		 1804 if (ret < 0) {
1805 /*
1806 * If sending the wiphy data didn't fit (ENOBUFS
1807 * or EMSGSIZE returned), this SKB is still
1808 * empty (so it's not too big because another
1809 * wiphy dataset is already in the skb) and
1810 * we've not tried to adjust the dump allocation
1811 * yet ... then adjust the alloc size to be
1812 * bigger, and return 1 but with the empty skb.
1813 * This results in an empty message being RX'ed
1814 * in userspace, but that is ignored.
1815 *
1816 * We can then retry with the larger buffer.
1817 */
1818 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1819 !skb->len && !state->split &&
3713b4e3
JB		 1820 cb->min_dump_alloc < 4096) {
1821 cb->min_dump_alloc = 4096;
f12cb289 1822 state->split_start = 0;
d98cae64 1823 rtnl_unlock();
3713b4e3
JB		 1824 return 1;
1825 }
1826 idx--;
1827 break;
645e77de 1828 }
86e8cf98 1829 } while (state->split_start > 0);
3713b4e3 1830 break;
55682965 1831 }
5fe231e8 1832 rtnl_unlock();
55682965 1833
86e8cf98 1834 state->start = idx;
55682965
JB		 1835
1836 return skb->len;
1837}
1838
86e8cf98
JB		 1839static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1840{
1841 kfree((void *)cb->args[0]);
1842 return 0;
1843}
1844
55682965
JB		 1845static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1846{
1847 struct sk_buff *msg;
1b8ec87a 1848 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1849 struct nl80211_dump_wiphy_state state = {};
55682965 1850
645e77de 1851 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1852 if (!msg)
4c476991 1853 return -ENOMEM;
55682965 1854
3bb20556
JB		 1855 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1856 info->snd_portid, info->snd_seq, 0,
86e8cf98 1857 &state) < 0) {
4c476991
JB		 1858 nlmsg_free(msg);
1859 return -ENOBUFS;
1860 }
55682965 1861
134e6375 1862 return genlmsg_reply(msg, info);
55682965
JB		 1863}
1864
31888487
JM		 1865static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1866 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1867 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1868 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1869 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1870 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1871};
1872
1873static int parse_txq_params(struct nlattr *tb[],
1874 struct ieee80211_txq_params *txq_params)
1875{
a3304b0a 1876 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1877 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1878 !tb[NL80211_TXQ_ATTR_AIFS])
1879 return -EINVAL;
1880
a3304b0a 1881 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1882 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1883 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1884 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1885 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1886
a3304b0a
JB		 1887 if (txq_params->ac >= NL80211_NUM_ACS)
1888 return -EINVAL;
1889
31888487
JM		 1890 return 0;
1891}
1892
f444de05
JB		 1893static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1894{
1895 /*
cc1d2806
JB		 1896 * You can only set the channel explicitly for WDS interfaces,
1897 * all others have their channel managed via their respective
1898 * "establish a connection" command (connect, join, ...)
1899 *
1900 * For AP/GO and mesh mode, the channel can be set with the
1901 * channel userspace API, but is only stored and passed to the
1902 * low-level driver when the AP starts or the mesh is joined.
1903 * This is for backward compatibility, userspace can also give
1904 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1905 *
1906 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1907 * whatever else is going on, so they have their own special
1908 * operation to set the monitor channel if possible.
f444de05
JB		 1909 */
1910 return !wdev ||
1911 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1912 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1913 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1914 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1915}
1916
683b6d3b
JB		 1917static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1918 struct genl_info *info,
1919 struct cfg80211_chan_def *chandef)
1920{
dbeca2ea 1921 u32 control_freq;
683b6d3b
JB		 1922
1923 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1924 return -EINVAL;
1925
1926 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1927
1928 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1929 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1930 chandef->center_freq1 = control_freq;
1931 chandef->center_freq2 = 0;
683b6d3b
JB		 1932
1933 /* Primary channel not allowed */
1934 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1935 return -EINVAL;
1936
3d9d1d66
JB		 1937 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1938 enum nl80211_channel_type chantype;
1939
1940 chantype = nla_get_u32(
1941 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1942
1943 switch (chantype) {
1944 case NL80211_CHAN_NO_HT:
1945 case NL80211_CHAN_HT20:
1946 case NL80211_CHAN_HT40PLUS:
1947 case NL80211_CHAN_HT40MINUS:
1948 cfg80211_chandef_create(chandef, chandef->chan,
1949 chantype);
1950 break;
1951 default:
1952 return -EINVAL;
1953 }
1954 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1955 chandef->width =
1956 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1957 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1958 chandef->center_freq1 =
1959 nla_get_u32(
1960 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1961 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1962 chandef->center_freq2 =
1963 nla_get_u32(
1964 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1965 }
1966
9f5e8f6e 1967 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1968 return -EINVAL;
1969
9f5e8f6e
JB		 1970 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1971 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1972 return -EINVAL;
1973
2f301ab2
SW		 1974 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1975 chandef->width == NL80211_CHAN_WIDTH_10) &&
1976 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1977 return -EINVAL;
1978
683b6d3b
JB		 1979 return 0;
1980}
1981
f444de05 1982static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1983 struct net_device *dev,
f444de05
JB		 1984 struct genl_info *info)
1985{
683b6d3b 1986 struct cfg80211_chan_def chandef;
f444de05 1987 int result;
e8c9bd5b 1988 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1989 struct wireless_dev *wdev = NULL;
e8c9bd5b 1990
e16821bc
JM		 1991 if (dev)
1992 wdev = dev->ieee80211_ptr;
f444de05
JB		 1993 if (!nl80211_can_set_dev_channel(wdev))
1994 return -EOPNOTSUPP;
e16821bc
JM		 1995 if (wdev)
1996 iftype = wdev->iftype;
f444de05 1997
683b6d3b
JB		 1998 result = nl80211_parse_chandef(rdev, info, &chandef);
1999 if (result)
2000 return result;
f444de05 2001
e8c9bd5b 2002 switch (iftype) {
aa430da4
JB		 2003 case NL80211_IFTYPE_AP:
2004 case NL80211_IFTYPE_P2P_GO:
174e0cd2 2005 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 2006 result = -EINVAL;
2007 break;
2008 }
e16821bc
JM		 2009 if (wdev->beacon_interval) {
2010 if (!dev || !rdev->ops->set_ap_chanwidth ||
2011 !(rdev->wiphy.features &
2012 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2013 result = -EBUSY;
2014 break;
2015 }
2016
2017 /* Only allow dynamic channel width changes */
2018 if (chandef.chan != wdev->preset_chandef.chan) {
2019 result = -EBUSY;
2020 break;
2021 }
2022 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2023 if (result)
2024 break;
2025 }
683b6d3b 2026 wdev->preset_chandef = chandef;
aa430da4
JB		 2027 result = 0;
2028 break;
cc1d2806 2029 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2030 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2031 break;
e8c9bd5b 2032 case NL80211_IFTYPE_MONITOR:
683b6d3b 2033 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2034 break;
aa430da4 2035 default:
e8c9bd5b 2036 result = -EINVAL;
f444de05 2037 }
f444de05
JB		 2038
2039 return result;
2040}
2041
2042static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2043{
4c476991
JB		 2044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2045 struct net_device *netdev = info->user_ptr[1];
f444de05 2046
e16821bc 2047 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2048}
2049
e8347eba
BJ		 2050static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2051{
43b19952
JB		 2052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2053 struct net_device *dev = info->user_ptr[1];
2054 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2055 const u8 *bssid;
e8347eba
BJ		 2056
2057 if (!info->attrs[NL80211_ATTR_MAC])
2058 return -EINVAL;
2059
43b19952
JB		 2060 if (netif_running(dev))
2061 return -EBUSY;
e8347eba 2062
43b19952
JB		 2063 if (!rdev->ops->set_wds_peer)
2064 return -EOPNOTSUPP;
e8347eba 2065
43b19952
JB		 2066 if (wdev->iftype != NL80211_IFTYPE_WDS)
2067 return -EOPNOTSUPP;
e8347eba
BJ		 2068
2069 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2070 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2071}
2072
2073
55682965
JB		 2074static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2075{
2076 struct cfg80211_registered_device *rdev;
f444de05
JB		 2077 struct net_device *netdev = NULL;
2078 struct wireless_dev *wdev;
a1e567c8 2079 int result = 0, rem_txq_params = 0;
31888487 2080 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2081 u32 changed;
2082 u8 retry_short = 0, retry_long = 0;
2083 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2084 u8 coverage_class = 0;
55682965 2085
5fe231e8
JB		 2086 ASSERT_RTNL();
2087
f444de05
JB		 2088 /*
2089 * Try to find the wiphy and netdev. Normally this
2090 * function shouldn't need the netdev, but this is
2091 * done for backward compatibility -- previously
2092 * setting the channel was done per wiphy, but now
2093 * it is per netdev. Previous userland like hostapd
2094 * also passed a netdev to set_wiphy, so that it is
2095 * possible to let that go to the right netdev!
2096 */
4bbf4d56 2097
f444de05
JB		 2098 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2099 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2100
7f2b8562 2101 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2102 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2103 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2104 else
f444de05 2105 netdev = NULL;
4bbf4d56
JB		 2106 }
2107
f444de05 2108 if (!netdev) {
878d9ec7
JB		 2109 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2110 info->attrs);
5fe231e8 2111 if (IS_ERR(rdev))
4c476991 2112 return PTR_ERR(rdev);
f444de05
JB		 2113 wdev = NULL;
2114 netdev = NULL;
2115 result = 0;
71fe96bf 2116 } else
f444de05 2117 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2118
2119 /*
2120 * end workaround code, by now the rdev is available
2121 * and locked, and wdev may or may not be NULL.
2122 */
4bbf4d56
JB		 2123
2124 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2125 result = cfg80211_dev_rename(
2126 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2127
4bbf4d56 2128 if (result)
7f2b8562 2129 return result;
31888487
JM		 2130
2131 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2132 struct ieee80211_txq_params txq_params;
2133 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2134
7f2b8562
YX		 2135 if (!rdev->ops->set_txq_params)
2136 return -EOPNOTSUPP;
31888487 2137
7f2b8562
YX		 2138 if (!netdev)
2139 return -EINVAL;
f70f01c2 2140
133a3ff2 2141 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2142 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2143 return -EINVAL;
133a3ff2 2144
7f2b8562
YX		 2145 if (!netif_running(netdev))
2146 return -ENETDOWN;
2b5f8b0b 2147
31888487
JM		 2148 nla_for_each_nested(nl_txq_params,
2149 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2150 rem_txq_params) {
ae811e21
JB		 2151 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2152 nla_data(nl_txq_params),
2153 nla_len(nl_txq_params),
2154 txq_params_policy);
2155 if (result)
2156 return result;
31888487
JM		 2157 result = parse_txq_params(tb, &txq_params);
2158 if (result)
7f2b8562 2159 return result;
31888487 2160
e35e4d28
HG		 2161 result = rdev_set_txq_params(rdev, netdev,
2162 &txq_params);
31888487 2163 if (result)
7f2b8562 2164 return result;
31888487
JM		 2165 }
2166 }
55682965 2167
72bdcf34 2168 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2169 result = __nl80211_set_channel(
2170 rdev,
2171 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2172 info);
72bdcf34 2173 if (result)
7f2b8562 2174 return result;
72bdcf34
JM		 2175 }
2176
98d2ff8b 2177 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2178 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2179 enum nl80211_tx_power_setting type;
2180 int idx, mbm = 0;
2181
c8442118
JB		 2182 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2183 txp_wdev = NULL;
2184
7f2b8562
YX		 2185 if (!rdev->ops->set_tx_power)
2186 return -EOPNOTSUPP;
98d2ff8b
JO		 2187
2188 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2189 type = nla_get_u32(info->attrs[idx]);
2190
2191 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2192 (type != NL80211_TX_POWER_AUTOMATIC))
2193 return -EINVAL;
98d2ff8b
JO		 2194
2195 if (type != NL80211_TX_POWER_AUTOMATIC) {
2196 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2197 mbm = nla_get_u32(info->attrs[idx]);
2198 }
2199
c8442118 2200 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2201 if (result)
7f2b8562 2202 return result;
98d2ff8b
JO		 2203 }
2204
afe0cbf8
BR		 2205 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2206 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2207 u32 tx_ant, rx_ant;
7f531e03
BR		 2208 if ((!rdev->wiphy.available_antennas_tx &&
2209 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2210 !rdev->ops->set_antenna)
2211 return -EOPNOTSUPP;
afe0cbf8
BR		 2212
2213 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2214 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2215
a7ffac95 2216 /* reject antenna configurations which don't match the
7f531e03
BR		 2217 * available antenna masks, except for the "all" mask */
2218 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2219 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2220 return -EINVAL;
a7ffac95 2221
7f531e03
BR		 2222 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2223 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2224
e35e4d28 2225 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2226 if (result)
7f2b8562 2227 return result;
afe0cbf8
BR		 2228 }
2229
b9a5f8ca
JM		 2230 changed = 0;
2231
2232 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2233 retry_short = nla_get_u8(
2234 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2235 if (retry_short == 0)
2236 return -EINVAL;
2237
b9a5f8ca
JM		 2238 changed |= WIPHY_PARAM_RETRY_SHORT;
2239 }
2240
2241 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2242 retry_long = nla_get_u8(
2243 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2244 if (retry_long == 0)
2245 return -EINVAL;
2246
b9a5f8ca
JM		 2247 changed |= WIPHY_PARAM_RETRY_LONG;
2248 }
2249
2250 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2251 frag_threshold = nla_get_u32(
2252 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2253 if (frag_threshold < 256)
2254 return -EINVAL;
2255
b9a5f8ca
JM		 2256 if (frag_threshold != (u32) -1) {
2257 /*
2258 * Fragments (apart from the last one) are required to
2259 * have even length. Make the fragmentation code
2260 * simpler by stripping LSB should someone try to use
2261 * odd threshold value.
2262 */
2263 frag_threshold &= ~0x1;
2264 }
2265 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2266 }
2267
2268 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2269 rts_threshold = nla_get_u32(
2270 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2271 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2272 }
2273
81077e82 2274 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2275 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2276 return -EINVAL;
2277
81077e82
LT		 2278 coverage_class = nla_get_u8(
2279 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2280 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2281 }
2282
3057dbfd
LB		 2283 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2284 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2285 return -EOPNOTSUPP;
2286
2287 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2288 }
2289
b9a5f8ca
JM		 2290 if (changed) {
2291 u8 old_retry_short, old_retry_long;
2292 u32 old_frag_threshold, old_rts_threshold;
81077e82 2293 u8 old_coverage_class;
b9a5f8ca 2294
7f2b8562
YX		 2295 if (!rdev->ops->set_wiphy_params)
2296 return -EOPNOTSUPP;
b9a5f8ca
JM		 2297
2298 old_retry_short = rdev->wiphy.retry_short;
2299 old_retry_long = rdev->wiphy.retry_long;
2300 old_frag_threshold = rdev->wiphy.frag_threshold;
2301 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2302 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2303
2304 if (changed & WIPHY_PARAM_RETRY_SHORT)
2305 rdev->wiphy.retry_short = retry_short;
2306 if (changed & WIPHY_PARAM_RETRY_LONG)
2307 rdev->wiphy.retry_long = retry_long;
2308 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2309 rdev->wiphy.frag_threshold = frag_threshold;
2310 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2311 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2312 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2313 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2314
e35e4d28 2315 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2316 if (result) {
2317 rdev->wiphy.retry_short = old_retry_short;
2318 rdev->wiphy.retry_long = old_retry_long;
2319 rdev->wiphy.frag_threshold = old_frag_threshold;
2320 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2321 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2322 }
2323 }
7f2b8562 2324 return 0;
55682965
JB		 2325}
2326
71bbc994
JB		 2327static inline u64 wdev_id(struct wireless_dev *wdev)
2328{
2329 return (u64)wdev->identifier |
f26cbf40 2330 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2331}
55682965 2332
683b6d3b 2333static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2334 const struct cfg80211_chan_def *chandef)
683b6d3b 2335{
601555cd
JB		 2336 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2337 return -EINVAL;
3d9d1d66 2338
683b6d3b
JB		 2339 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2340 chandef->chan->center_freq))
2341 return -ENOBUFS;
3d9d1d66
JB		 2342 switch (chandef->width) {
2343 case NL80211_CHAN_WIDTH_20_NOHT:
2344 case NL80211_CHAN_WIDTH_20:
2345 case NL80211_CHAN_WIDTH_40:
2346 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2347 cfg80211_get_chandef_type(chandef)))
2348 return -ENOBUFS;
2349 break;
2350 default:
2351 break;
2352 }
2353 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2354 return -ENOBUFS;
2355 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2356 return -ENOBUFS;
2357 if (chandef->center_freq2 &&
2358 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2359 return -ENOBUFS;
2360 return 0;
2361}
2362
15e47304 2363static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2364 struct cfg80211_registered_device *rdev,
8f894be2 2365 struct wireless_dev *wdev, bool removal)
55682965 2366{
72fb2abc 2367 struct net_device *dev = wdev->netdev;
8f894be2 2368 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2369 void *hdr;
2370
8f894be2
TB		 2371 if (removal)
2372 cmd = NL80211_CMD_DEL_INTERFACE;
2373
2374 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2375 if (!hdr)
2376 return -1;
2377
72fb2abc
JB		 2378 if (dev &&
2379 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2380 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2381 goto nla_put_failure;
2382
2383 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2384 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2385 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2386 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2387 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2388 rdev->devlist_generation ^
2389 (cfg80211_rdev_list_generation << 2)))
2390 goto nla_put_failure;
f5ea9120 2391
5b7ccaf3 2392 if (rdev->ops->get_channel) {
683b6d3b
JB		 2393 int ret;
2394 struct cfg80211_chan_def chandef;
2395
2396 ret = rdev_get_channel(rdev, wdev, &chandef);
2397 if (ret == 0) {
2398 if (nl80211_send_chandef(msg, &chandef))
2399 goto nla_put_failure;
2400 }
d91df0e3
PF		 2401 }
2402
b84e7a05
AQ		 2403 if (wdev->ssid_len) {
2404 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2405 goto nla_put_failure;
2406 }
2407
55682965
JB		 2408 return genlmsg_end(msg, hdr);
2409
2410 nla_put_failure:
bc3ed28c
TG		 2411 genlmsg_cancel(msg, hdr);
2412 return -EMSGSIZE;
55682965
JB		 2413}
2414
2415static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2416{
2417 int wp_idx = 0;
2418 int if_idx = 0;
2419 int wp_start = cb->args[0];
2420 int if_start = cb->args[1];
f5ea9120 2421 struct cfg80211_registered_device *rdev;
55682965
JB		 2422 struct wireless_dev *wdev;
2423
5fe231e8 2424 rtnl_lock();
f5ea9120
JB		 2425 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2426 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2427 continue;
bba95fef
JB		 2428 if (wp_idx < wp_start) {
2429 wp_idx++;
55682965 2430 continue;
bba95fef 2431 }
55682965
JB		 2432 if_idx = 0;
2433
89a54e48 2434 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2435 if (if_idx < if_start) {
2436 if_idx++;
55682965 2437 continue;
bba95fef 2438 }
15e47304 2439 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2440 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2441 rdev, wdev, false) < 0) {
bba95fef
JB		 2442 goto out;
2443 }
2444 if_idx++;
55682965 2445 }
bba95fef
JB		 2446
2447 wp_idx++;
55682965 2448 }
bba95fef 2449 out:
5fe231e8 2450 rtnl_unlock();
55682965
JB		 2451
2452 cb->args[0] = wp_idx;
2453 cb->args[1] = if_idx;
2454
2455 return skb->len;
2456}
2457
2458static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2459{
2460 struct sk_buff *msg;
1b8ec87a 2461 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2462 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2463
fd2120ca 2464 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2465 if (!msg)
4c476991 2466 return -ENOMEM;
55682965 2467
15e47304 2468 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2469 rdev, wdev, false) < 0) {
4c476991
JB		 2470 nlmsg_free(msg);
2471 return -ENOBUFS;
2472 }
55682965 2473
134e6375 2474 return genlmsg_reply(msg, info);
55682965
JB		 2475}
2476
66f7ac50
MW		 2477static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2478 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2479 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2480 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2481 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2482 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2483 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2484};
2485
2486static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2487{
2488 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2489 int flag;
2490
2491 *mntrflags = 0;
2492
2493 if (!nla)
2494 return -EINVAL;
2495
2496 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2497 nla, mntr_flags_policy))
2498 return -EINVAL;
2499
2500 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2501 if (flags[flag])
2502 *mntrflags |= (1<<flag);
2503
2504 return 0;
2505}
2506
9bc383de 2507static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2508 struct net_device *netdev, u8 use_4addr,
2509 enum nl80211_iftype iftype)
9bc383de 2510{
ad4bb6f8 2511 if (!use_4addr) {
f350a0a8 2512 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2513 return -EBUSY;
9bc383de 2514 return 0;
ad4bb6f8 2515 }
9bc383de
JB		 2516
2517 switch (iftype) {
2518 case NL80211_IFTYPE_AP_VLAN:
2519 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2520 return 0;
2521 break;
2522 case NL80211_IFTYPE_STATION:
2523 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2524 return 0;
2525 break;
2526 default:
2527 break;
2528 }
2529
2530 return -EOPNOTSUPP;
2531}
2532
55682965
JB		 2533static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2534{
4c476991 2535 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2536 struct vif_params params;
e36d56b6 2537 int err;
04a773ad 2538 enum nl80211_iftype otype, ntype;
4c476991 2539 struct net_device *dev = info->user_ptr[1];
92ffe055 2540 u32 _flags, *flags = NULL;
ac7f9cfa 2541 bool change = false;
55682965 2542
2ec600d6
LCC		 2543 memset(&params, 0, sizeof(params));
2544
04a773ad 2545 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2546
723b038d 2547 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2548 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2549 if (otype != ntype)
ac7f9cfa 2550 change = true;
4c476991
JB		 2551 if (ntype > NL80211_IFTYPE_MAX)
2552 return -EINVAL;
723b038d
JB		 2553 }
2554
92ffe055 2555 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2556 struct wireless_dev *wdev = dev->ieee80211_ptr;
2557
4c476991
JB		 2558 if (ntype != NL80211_IFTYPE_MESH_POINT)
2559 return -EINVAL;
29cbe68c
JB		 2560 if (netif_running(dev))
2561 return -EBUSY;
2562
2563 wdev_lock(wdev);
2564 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2565 IEEE80211_MAX_MESH_ID_LEN);
2566 wdev->mesh_id_up_len =
2567 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2568 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2569 wdev->mesh_id_up_len);
2570 wdev_unlock(wdev);
2ec600d6
LCC		 2571 }
2572
8b787643
FF		 2573 if (info->attrs[NL80211_ATTR_4ADDR]) {
2574 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2575 change = true;
ad4bb6f8 2576 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2577 if (err)
4c476991 2578 return err;
8b787643
FF		 2579 } else {
2580 params.use_4addr = -1;
2581 }
2582
92ffe055 2583 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2584 if (ntype != NL80211_IFTYPE_MONITOR)
2585 return -EINVAL;
92ffe055
JB		 2586 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2587 &_flags);
ac7f9cfa 2588 if (err)
4c476991 2589 return err;
ac7f9cfa
JB		 2590
2591 flags = &_flags;
2592 change = true;
92ffe055 2593 }
3b85875a 2594
18003297 2595 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2596 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2597 return -EOPNOTSUPP;
2598
ac7f9cfa 2599 if (change)
3d54d255 2600 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2601 else
2602 err = 0;
60719ffd 2603
9bc383de
JB		 2604 if (!err && params.use_4addr != -1)
2605 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2606
55682965
JB		 2607 return err;
2608}
2609
2610static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2611{
4c476991 2612 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2613 struct vif_params params;
84efbb84 2614 struct wireless_dev *wdev;
8f894be2 2615 struct sk_buff *msg, *event;
55682965
JB		 2616 int err;
2617 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2618 u32 flags;
55682965 2619
78f22b6a
JB		 2620 /* to avoid failing a new interface creation due to pending removal */
2621 cfg80211_destroy_ifaces(rdev);
2622
2ec600d6
LCC		 2623 memset(&params, 0, sizeof(params));
2624
55682965
JB		 2625 if (!info->attrs[NL80211_ATTR_IFNAME])
2626 return -EINVAL;
2627
2628 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2629 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2630 if (type > NL80211_IFTYPE_MAX)
2631 return -EINVAL;
2632 }
2633
79c97e97 2634 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2635 !(rdev->wiphy.interface_modes & (1 << type)))
2636 return -EOPNOTSUPP;
55682965 2637
e8f479b1
BG		 2638 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2639 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2640 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2641 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2642 ETH_ALEN);
2643 if (!is_valid_ether_addr(params.macaddr))
2644 return -EADDRNOTAVAIL;
2645 }
2646
9bc383de 2647 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2648 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2649 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2650 if (err)
4c476991 2651 return err;
9bc383de 2652 }
8b787643 2653
1c90f9d4
JB		 2654 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2655 if (!msg)
2656 return -ENOMEM;
2657
66f7ac50
MW		 2658 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2659 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2660 &flags);
e057d3c3 2661
18003297 2662 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2663 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2664 return -EOPNOTSUPP;
2665
e35e4d28
HG		 2666 wdev = rdev_add_virtual_intf(rdev,
2667 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2668 type, err ? NULL : &flags, &params);
d687cbb7
RM		 2669 if (WARN_ON(!wdev)) {
2670 nlmsg_free(msg);
2671 return -EPROTO;
2672 } else if (IS_ERR(wdev)) {
1c90f9d4 2673 nlmsg_free(msg);
84efbb84 2674 return PTR_ERR(wdev);
1c90f9d4 2675 }
2ec600d6 2676
18e5ca65 2677 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2678 wdev->owner_nlportid = info->snd_portid;
2679
98104fde
JB		 2680 switch (type) {
2681 case NL80211_IFTYPE_MESH_POINT:
2682 if (!info->attrs[NL80211_ATTR_MESH_ID])
2683 break;
29cbe68c
JB		 2684 wdev_lock(wdev);
2685 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2686 IEEE80211_MAX_MESH_ID_LEN);
2687 wdev->mesh_id_up_len =
2688 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2689 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2690 wdev->mesh_id_up_len);
2691 wdev_unlock(wdev);
98104fde
JB		 2692 break;
2693 case NL80211_IFTYPE_P2P_DEVICE:
2694 /*
2695 * P2P Device doesn't have a netdev, so doesn't go
2696 * through the netdev notifier and must be added here
2697 */
2698 mutex_init(&wdev->mtx);
2699 INIT_LIST_HEAD(&wdev->event_list);
2700 spin_lock_init(&wdev->event_lock);
2701 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2702 spin_lock_init(&wdev->mgmt_registrations_lock);
2703
98104fde
JB		 2704 wdev->identifier = ++rdev->wdev_id;
2705 list_add_rcu(&wdev->list, &rdev->wdev_list);
2706 rdev->devlist_generation++;
98104fde
JB		 2707 break;
2708 default:
2709 break;
29cbe68c
JB		 2710 }
2711
15e47304 2712 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2713 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2714 nlmsg_free(msg);
2715 return -ENOBUFS;
2716 }
2717
8f894be2
TB		 2718 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2719 if (event) {
2720 if (nl80211_send_iface(event, 0, 0, 0,
2721 rdev, wdev, false) < 0) {
2722 nlmsg_free(event);
2723 goto out;
2724 }
2725
2726 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2727 event, 0, NL80211_MCGRP_CONFIG,
2728 GFP_KERNEL);
2729 }
2730
2731out:
1c90f9d4 2732 return genlmsg_reply(msg, info);
55682965
JB		 2733}
2734
2735static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2736{
4c476991 2737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2738 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2739 struct sk_buff *msg;
2740 int status;
55682965 2741
4c476991
JB		 2742 if (!rdev->ops->del_virtual_intf)
2743 return -EOPNOTSUPP;
55682965 2744
8f894be2
TB		 2745 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2746 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2747 nlmsg_free(msg);
2748 msg = NULL;
2749 }
2750
84efbb84
JB		 2751 /*
2752 * If we remove a wireless device without a netdev then clear
2753 * user_ptr[1] so that nl80211_post_doit won't dereference it
2754 * to check if it needs to do dev_put(). Otherwise it crashes
2755 * since the wdev has been freed, unlike with a netdev where
2756 * we need the dev_put() for the netdev to really be freed.
2757 */
2758 if (!wdev->netdev)
2759 info->user_ptr[1] = NULL;
2760
8f894be2
TB		 2761 status = rdev_del_virtual_intf(rdev, wdev);
2762 if (status >= 0 && msg)
2763 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2764 msg, 0, NL80211_MCGRP_CONFIG,
2765 GFP_KERNEL);
2766 else
2767 nlmsg_free(msg);
2768
2769 return status;
55682965
JB		 2770}
2771
1d9d9213
SW		 2772static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2773{
2774 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2775 struct net_device *dev = info->user_ptr[1];
2776 u16 noack_map;
2777
2778 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2779 return -EINVAL;
2780
2781 if (!rdev->ops->set_noack_map)
2782 return -EOPNOTSUPP;
2783
2784 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2785
e35e4d28 2786 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2787}
2788
41ade00f
JB		 2789struct get_key_cookie {
2790 struct sk_buff *msg;
2791 int error;
b9454e83 2792 int idx;
41ade00f
JB		 2793};
2794
2795static void get_key_callback(void *c, struct key_params *params)
2796{
b9454e83 2797 struct nlattr *key;
41ade00f
JB		 2798 struct get_key_cookie *cookie = c;
2799
9360ffd1
DM		 2800 if ((params->key &&
2801 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2802 params->key_len, params->key)) ||
2803 (params->seq &&
2804 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2805 params->seq_len, params->seq)) ||
2806 (params->cipher &&
2807 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2808 params->cipher)))
2809 goto nla_put_failure;
41ade00f 2810
b9454e83
JB		 2811 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2812 if (!key)
2813 goto nla_put_failure;
2814
9360ffd1
DM		 2815 if ((params->key &&
2816 nla_put(cookie->msg, NL80211_KEY_DATA,
2817 params->key_len, params->key)) ||
2818 (params->seq &&
2819 nla_put(cookie->msg, NL80211_KEY_SEQ,
2820 params->seq_len, params->seq)) ||
2821 (params->cipher &&
2822 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2823 params->cipher)))
2824 goto nla_put_failure;
b9454e83 2825
9360ffd1
DM		 2826 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2827 goto nla_put_failure;
b9454e83
JB		 2828
2829 nla_nest_end(cookie->msg, key);
2830
41ade00f
JB		 2831 return;
2832 nla_put_failure:
2833 cookie->error = 1;
2834}
2835
2836static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2837{
4c476991 2838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2839 int err;
4c476991 2840 struct net_device *dev = info->user_ptr[1];
41ade00f 2841 u8 key_idx = 0;
e31b8213
JB		 2842 const u8 *mac_addr = NULL;
2843 bool pairwise;
41ade00f
JB		 2844 struct get_key_cookie cookie = {
2845 .error = 0,
2846 };
2847 void *hdr;
2848 struct sk_buff *msg;
2849
2850 if (info->attrs[NL80211_ATTR_KEY_IDX])
2851 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2852
3cfcf6ac 2853 if (key_idx > 5)
41ade00f
JB		 2854 return -EINVAL;
2855
2856 if (info->attrs[NL80211_ATTR_MAC])
2857 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2858
e31b8213
JB		 2859 pairwise = !!mac_addr;
2860 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2861 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2862 if (kt >= NUM_NL80211_KEYTYPES)
2863 return -EINVAL;
2864 if (kt != NL80211_KEYTYPE_GROUP &&
2865 kt != NL80211_KEYTYPE_PAIRWISE)
2866 return -EINVAL;
2867 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2868 }
2869
4c476991
JB		 2870 if (!rdev->ops->get_key)
2871 return -EOPNOTSUPP;
41ade00f 2872
fd2120ca 2873 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2874 if (!msg)
2875 return -ENOMEM;
41ade00f 2876
15e47304 2877 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2878 NL80211_CMD_NEW_KEY);
cb35fba3 2879 if (!hdr)
9fe271af 2880 goto nla_put_failure;
41ade00f
JB		 2881
2882 cookie.msg = msg;
b9454e83 2883 cookie.idx = key_idx;
41ade00f 2884
9360ffd1
DM		 2885 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2886 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2887 goto nla_put_failure;
2888 if (mac_addr &&
2889 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2890 goto nla_put_failure;
41ade00f 2891
e31b8213
JB		 2892 if (pairwise && mac_addr &&
2893 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2894 return -ENOENT;
2895
e35e4d28
HG		 2896 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2897 get_key_callback);
41ade00f
JB		 2898
2899 if (err)
6c95e2a2 2900 goto free_msg;
41ade00f
JB		 2901
2902 if (cookie.error)
2903 goto nla_put_failure;
2904
2905 genlmsg_end(msg, hdr);
4c476991 2906 return genlmsg_reply(msg, info);
41ade00f
JB		 2907
2908 nla_put_failure:
2909 err = -ENOBUFS;
6c95e2a2 2910 free_msg:
41ade00f 2911 nlmsg_free(msg);
41ade00f
JB		 2912 return err;
2913}
2914
2915static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2916{
4c476991 2917 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2918 struct key_parse key;
41ade00f 2919 int err;
4c476991 2920 struct net_device *dev = info->user_ptr[1];
41ade00f 2921
b9454e83
JB		 2922 err = nl80211_parse_key(info, &key);
2923 if (err)
2924 return err;
41ade00f 2925
b9454e83 2926 if (key.idx < 0)
41ade00f
JB		 2927 return -EINVAL;
2928
b9454e83
JB		 2929 /* only support setting default key */
2930 if (!key.def && !key.defmgmt)
41ade00f
JB		 2931 return -EINVAL;
2932
dbd2fd65 2933 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2934
dbd2fd65
JB		 2935 if (key.def) {
2936 if (!rdev->ops->set_default_key) {
2937 err = -EOPNOTSUPP;
2938 goto out;
2939 }
41ade00f 2940
dbd2fd65
JB		 2941 err = nl80211_key_allowed(dev->ieee80211_ptr);
2942 if (err)
2943 goto out;
2944
e35e4d28 2945 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2946 key.def_uni, key.def_multi);
2947
2948 if (err)
2949 goto out;
fffd0934 2950
3d23e349 2951#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2952 dev->ieee80211_ptr->wext.default_key = key.idx;
2953#endif
2954 } else {
2955 if (key.def_uni || !key.def_multi) {
2956 err = -EINVAL;
2957 goto out;
2958 }
2959
2960 if (!rdev->ops->set_default_mgmt_key) {
2961 err = -EOPNOTSUPP;
2962 goto out;
2963 }
2964
2965 err = nl80211_key_allowed(dev->ieee80211_ptr);
2966 if (err)
2967 goto out;
2968
e35e4d28 2969 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2970 if (err)
2971 goto out;
2972
2973#ifdef CONFIG_CFG80211_WEXT
2974 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2975#endif
dbd2fd65
JB		 2976 }
2977
2978 out:
fffd0934 2979 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2980
41ade00f
JB		 2981 return err;
2982}
2983
2984static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2985{
4c476991 2986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2987 int err;
4c476991 2988 struct net_device *dev = info->user_ptr[1];
b9454e83 2989 struct key_parse key;
e31b8213 2990 const u8 *mac_addr = NULL;
41ade00f 2991
b9454e83
JB		 2992 err = nl80211_parse_key(info, &key);
2993 if (err)
2994 return err;
41ade00f 2995
b9454e83 2996 if (!key.p.key)
41ade00f
JB		 2997 return -EINVAL;
2998
41ade00f
JB		 2999 if (info->attrs[NL80211_ATTR_MAC])
3000 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3001
e31b8213
JB		 3002 if (key.type == -1) {
3003 if (mac_addr)
3004 key.type = NL80211_KEYTYPE_PAIRWISE;
3005 else
3006 key.type = NL80211_KEYTYPE_GROUP;
3007 }
3008
3009 /* for now */
3010 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3011 key.type != NL80211_KEYTYPE_GROUP)
3012 return -EINVAL;
3013
4c476991
JB		 3014 if (!rdev->ops->add_key)
3015 return -EOPNOTSUPP;
25e47c18 3016
e31b8213
JB		 3017 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3018 key.type == NL80211_KEYTYPE_PAIRWISE,
3019 mac_addr))
4c476991 3020 return -EINVAL;
41ade00f 3021
fffd0934
JB		 3022 wdev_lock(dev->ieee80211_ptr);
3023 err = nl80211_key_allowed(dev->ieee80211_ptr);
3024 if (!err)
e35e4d28
HG		 3025 err = rdev_add_key(rdev, dev, key.idx,
3026 key.type == NL80211_KEYTYPE_PAIRWISE,
3027 mac_addr, &key.p);
fffd0934 3028 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3029
41ade00f
JB		 3030 return err;
3031}
3032
3033static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3034{
4c476991 3035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3036 int err;
4c476991 3037 struct net_device *dev = info->user_ptr[1];
41ade00f 3038 u8 *mac_addr = NULL;
b9454e83 3039 struct key_parse key;
41ade00f 3040
b9454e83
JB		 3041 err = nl80211_parse_key(info, &key);
3042 if (err)
3043 return err;
41ade00f
JB		 3044
3045 if (info->attrs[NL80211_ATTR_MAC])
3046 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3047
e31b8213
JB		 3048 if (key.type == -1) {
3049 if (mac_addr)
3050 key.type = NL80211_KEYTYPE_PAIRWISE;
3051 else
3052 key.type = NL80211_KEYTYPE_GROUP;
3053 }
3054
3055 /* for now */
3056 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3057 key.type != NL80211_KEYTYPE_GROUP)
3058 return -EINVAL;
3059
4c476991
JB		 3060 if (!rdev->ops->del_key)
3061 return -EOPNOTSUPP;
41ade00f 3062
fffd0934
JB		 3063 wdev_lock(dev->ieee80211_ptr);
3064 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 3065
3066 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3067 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3068 err = -ENOENT;
3069
fffd0934 3070 if (!err)
e35e4d28
HG		 3071 err = rdev_del_key(rdev, dev, key.idx,
3072 key.type == NL80211_KEYTYPE_PAIRWISE,
3073 mac_addr);
41ade00f 3074
3d23e349 3075#ifdef CONFIG_CFG80211_WEXT
08645126 3076 if (!err) {
b9454e83 3077 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3078 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3079 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3080 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3081 }
3082#endif
fffd0934 3083 wdev_unlock(dev->ieee80211_ptr);
08645126 3084
41ade00f
JB		 3085 return err;
3086}
3087
77765eaf
VT		 3088/* This function returns an error or the number of nested attributes */
3089static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3090{
3091 struct nlattr *attr;
3092 int n_entries = 0, tmp;
3093
3094 nla_for_each_nested(attr, nl_attr, tmp) {
3095 if (nla_len(attr) != ETH_ALEN)
3096 return -EINVAL;
3097
3098 n_entries++;
3099 }
3100
3101 return n_entries;
3102}
3103
3104/*
3105 * This function parses ACL information and allocates memory for ACL data.
3106 * On successful return, the calling function is responsible to free the
3107 * ACL buffer returned by this function.
3108 */
3109static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3110 struct genl_info *info)
3111{
3112 enum nl80211_acl_policy acl_policy;
3113 struct nlattr *attr;
3114 struct cfg80211_acl_data *acl;
3115 int i = 0, n_entries, tmp;
3116
3117 if (!wiphy->max_acl_mac_addrs)
3118 return ERR_PTR(-EOPNOTSUPP);
3119
3120 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3121 return ERR_PTR(-EINVAL);
3122
3123 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3124 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3125 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3126 return ERR_PTR(-EINVAL);
3127
3128 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3129 return ERR_PTR(-EINVAL);
3130
3131 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3132 if (n_entries < 0)
3133 return ERR_PTR(n_entries);
3134
3135 if (n_entries > wiphy->max_acl_mac_addrs)
3136 return ERR_PTR(-ENOTSUPP);
3137
3138 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3139 GFP_KERNEL);
3140 if (!acl)
3141 return ERR_PTR(-ENOMEM);
3142
3143 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3144 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3145 i++;
3146 }
3147
3148 acl->n_acl_entries = n_entries;
3149 acl->acl_policy = acl_policy;
3150
3151 return acl;
3152}
3153
3154static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3155{
3156 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3157 struct net_device *dev = info->user_ptr[1];
3158 struct cfg80211_acl_data *acl;
3159 int err;
3160
3161 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3162 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3163 return -EOPNOTSUPP;
3164
3165 if (!dev->ieee80211_ptr->beacon_interval)
3166 return -EINVAL;
3167
3168 acl = parse_acl_data(&rdev->wiphy, info);
3169 if (IS_ERR(acl))
3170 return PTR_ERR(acl);
3171
3172 err = rdev_set_mac_acl(rdev, dev, acl);
3173
3174 kfree(acl);
3175
3176 return err;
3177}
3178
a1193be8 3179static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3180 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3181{
8860020e 3182 bool haveinfo = false;
ed1b6cc7 3183
a1193be8
SW		 3184 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3185 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3186 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3187 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3188 return -EINVAL;
3189
8860020e 3190 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3191
a1193be8
SW		 3192 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3193 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3194 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3195 if (!bcn->head_len)
3196 return -EINVAL;
3197 haveinfo = true;
ed1b6cc7
JB		 3198 }
3199
a1193be8
SW		 3200 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3201 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3202 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3203 haveinfo = true;
ed1b6cc7
JB		 3204 }
3205
4c476991
JB		 3206 if (!haveinfo)
3207 return -EINVAL;
3b85875a 3208
a1193be8
SW		 3209 if (attrs[NL80211_ATTR_IE]) {
3210 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3211 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3212 }
3213
a1193be8 3214 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3215 bcn->proberesp_ies =
a1193be8 3216 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3217 bcn->proberesp_ies_len =
a1193be8 3218 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3219 }
3220
a1193be8 3221 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3222 bcn->assocresp_ies =
a1193be8 3223 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3224 bcn->assocresp_ies_len =
a1193be8 3225 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3226 }
3227
a1193be8
SW		 3228 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3229 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3230 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3231 }
3232
8860020e
JB		 3233 return 0;
3234}
3235
46c1dd0c
FF		 3236static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3237 struct cfg80211_ap_settings *params)
3238{
3239 struct wireless_dev *wdev;
3240 bool ret = false;
3241
89a54e48 3242 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3243 if (wdev->iftype != NL80211_IFTYPE_AP &&
3244 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3245 continue;
3246
683b6d3b 3247 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3248 continue;
3249
683b6d3b 3250 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3251 ret = true;
3252 break;
3253 }
3254
46c1dd0c
FF		 3255 return ret;
3256}
3257
e39e5b5e
JM		 3258static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3259 enum nl80211_auth_type auth_type,
3260 enum nl80211_commands cmd)
3261{
3262 if (auth_type > NL80211_AUTHTYPE_MAX)
3263 return false;
3264
3265 switch (cmd) {
3266 case NL80211_CMD_AUTHENTICATE:
3267 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3268 auth_type == NL80211_AUTHTYPE_SAE)
3269 return false;
3270 return true;
3271 case NL80211_CMD_CONNECT:
3272 case NL80211_CMD_START_AP:
3273 /* SAE not supported yet */
3274 if (auth_type == NL80211_AUTHTYPE_SAE)
3275 return false;
3276 return true;
3277 default:
3278 return false;
3279 }
3280}
3281
8860020e
JB		 3282static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3283{
3284 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3285 struct net_device *dev = info->user_ptr[1];
3286 struct wireless_dev *wdev = dev->ieee80211_ptr;
3287 struct cfg80211_ap_settings params;
3288 int err;
3289
3290 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3291 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3292 return -EOPNOTSUPP;
3293
3294 if (!rdev->ops->start_ap)
3295 return -EOPNOTSUPP;
3296
3297 if (wdev->beacon_interval)
3298 return -EALREADY;
3299
3300 memset(&params, 0, sizeof(params));
3301
3302 /* these are required for START_AP */
3303 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3304 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3305 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3306 return -EINVAL;
3307
a1193be8 3308 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3309 if (err)
3310 return err;
3311
3312 params.beacon_interval =
3313 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3314 params.dtim_period =
3315 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3316
3317 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3318 if (err)
3319 return err;
3320
3321 /*
3322 * In theory, some of these attributes should be required here
3323 * but since they were not used when the command was originally
3324 * added, keep them optional for old user space programs to let
3325 * them continue to work with drivers that do not need the
3326 * additional information -- drivers must check!
3327 */
3328 if (info->attrs[NL80211_ATTR_SSID]) {
3329 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3330 params.ssid_len =
3331 nla_len(info->attrs[NL80211_ATTR_SSID]);
3332 if (params.ssid_len == 0 ||
3333 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3334 return -EINVAL;
3335 }
3336
3337 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3338 params.hidden_ssid = nla_get_u32(
3339 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3340 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3341 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3342 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3343 return -EINVAL;
3344 }
3345
3346 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3347
3348 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3349 params.auth_type = nla_get_u32(
3350 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3351 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3352 NL80211_CMD_START_AP))
8860020e
JB		 3353 return -EINVAL;
3354 } else
3355 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3356
3357 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3358 NL80211_MAX_NR_CIPHER_SUITES);
3359 if (err)
3360 return err;
3361
1b658f11
VT		 3362 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3363 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3364 return -EOPNOTSUPP;
3365 params.inactivity_timeout = nla_get_u16(
3366 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3367 }
3368
53cabad7
JB		 3369 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3370 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3371 return -EINVAL;
3372 params.p2p_ctwindow =
3373 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3374 if (params.p2p_ctwindow > 127)
3375 return -EINVAL;
3376 if (params.p2p_ctwindow != 0 &&
3377 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3378 return -EINVAL;
3379 }
3380
3381 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3382 u8 tmp;
3383
3384 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3385 return -EINVAL;
3386 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3387 if (tmp > 1)
3388 return -EINVAL;
3389 params.p2p_opp_ps = tmp;
3390 if (params.p2p_opp_ps != 0 &&
3391 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3392 return -EINVAL;
3393 }
3394
aa430da4 3395 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3396 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3397 if (err)
3398 return err;
3399 } else if (wdev->preset_chandef.chan) {
3400 params.chandef = wdev->preset_chandef;
46c1dd0c 3401 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3402 return -EINVAL;
3403
174e0cd2
IP		 3404 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3405 wdev->iftype))
aa430da4
JB		 3406 return -EINVAL;
3407
77765eaf
VT		 3408 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3409 params.acl = parse_acl_data(&rdev->wiphy, info);
3410 if (IS_ERR(params.acl))
3411 return PTR_ERR(params.acl);
3412 }
3413
18998c38
EP		 3414 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3415 params.smps_mode =
3416 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3417 switch (params.smps_mode) {
3418 case NL80211_SMPS_OFF:
3419 break;
3420 case NL80211_SMPS_STATIC:
3421 if (!(rdev->wiphy.features &
3422 NL80211_FEATURE_STATIC_SMPS))
3423 return -EINVAL;
3424 break;
3425 case NL80211_SMPS_DYNAMIC:
3426 if (!(rdev->wiphy.features &
3427 NL80211_FEATURE_DYNAMIC_SMPS))
3428 return -EINVAL;
3429 break;
3430 default:
3431 return -EINVAL;
3432 }
3433 } else {
3434 params.smps_mode = NL80211_SMPS_OFF;
3435 }
3436
c56589ed 3437 wdev_lock(wdev);
e35e4d28 3438 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3439 if (!err) {
683b6d3b 3440 wdev->preset_chandef = params.chandef;
8860020e 3441 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3442 wdev->chandef = params.chandef;
06e191e2
AQ		 3443 wdev->ssid_len = params.ssid_len;
3444 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3445 }
c56589ed 3446 wdev_unlock(wdev);
77765eaf
VT		 3447
3448 kfree(params.acl);
3449
56d1893d 3450 return err;
ed1b6cc7
JB		 3451}
3452
8860020e
JB		 3453static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3454{
3455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3456 struct net_device *dev = info->user_ptr[1];
3457 struct wireless_dev *wdev = dev->ieee80211_ptr;
3458 struct cfg80211_beacon_data params;
3459 int err;
3460
3461 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3462 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3463 return -EOPNOTSUPP;
3464
3465 if (!rdev->ops->change_beacon)
3466 return -EOPNOTSUPP;
3467
3468 if (!wdev->beacon_interval)
3469 return -EINVAL;
3470
a1193be8 3471 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3472 if (err)
3473 return err;
3474
c56589ed
SW		 3475 wdev_lock(wdev);
3476 err = rdev_change_beacon(rdev, dev, &params);
3477 wdev_unlock(wdev);
3478
3479 return err;
8860020e
JB		 3480}
3481
3482static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3483{
4c476991
JB		 3484 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3485 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3486
7c8d5e03 3487 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3488}
3489
5727ef1b
JB		 3490static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3491 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3492 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3493 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3494 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3495 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3496 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3497};
3498
eccb8e8f 3499static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3500 enum nl80211_iftype iftype,
eccb8e8f 3501 struct station_parameters *params)
5727ef1b
JB		 3502{
3503 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3504 struct nlattr *nla;
5727ef1b
JB		 3505 int flag;
3506
eccb8e8f
JB		 3507 /*
3508 * Try parsing the new attribute first so userspace
3509 * can specify both for older kernels.
3510 */
3511 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3512 if (nla) {
3513 struct nl80211_sta_flag_update *sta_flags;
3514
3515 sta_flags = nla_data(nla);
3516 params->sta_flags_mask = sta_flags->mask;
3517 params->sta_flags_set = sta_flags->set;
77ee7c89 3518 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3519 if ((params->sta_flags_mask |
3520 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3521 return -EINVAL;
3522 return 0;
3523 }
3524
3525 /* if present, parse the old attribute */
5727ef1b 3526
eccb8e8f 3527 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3528 if (!nla)
3529 return 0;
3530
3531 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3532 nla, sta_flags_policy))
3533 return -EINVAL;
3534
bdd3ae3d
JB		 3535 /*
3536 * Only allow certain flags for interface types so that
3537 * other attributes are silently ignored. Remember that
3538 * this is backward compatibility code with old userspace
3539 * and shouldn't be hit in other cases anyway.
3540 */
3541 switch (iftype) {
3542 case NL80211_IFTYPE_AP:
3543 case NL80211_IFTYPE_AP_VLAN:
3544 case NL80211_IFTYPE_P2P_GO:
3545 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3546 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3547 BIT(NL80211_STA_FLAG_WME) |
3548 BIT(NL80211_STA_FLAG_MFP);
3549 break;
3550 case NL80211_IFTYPE_P2P_CLIENT:
3551 case NL80211_IFTYPE_STATION:
3552 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3553 BIT(NL80211_STA_FLAG_TDLS_PEER);
3554 break;
3555 case NL80211_IFTYPE_MESH_POINT:
3556 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3557 BIT(NL80211_STA_FLAG_MFP) |
3558 BIT(NL80211_STA_FLAG_AUTHORIZED);
3559 default:
3560 return -EINVAL;
3561 }
5727ef1b 3562
3383b5a6
JB		 3563 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3564 if (flags[flag]) {
eccb8e8f 3565 params->sta_flags_set |= (1<<flag);
5727ef1b 3566
3383b5a6
JB		 3567 /* no longer support new API additions in old API */
3568 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3569 return -EINVAL;
3570 }
3571 }
3572
5727ef1b
JB		 3573 return 0;
3574}
3575
c8dcfd8a
FF		 3576static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3577 int attr)
3578{
3579 struct nlattr *rate;
8eb41c8d
VK		 3580 u32 bitrate;
3581 u16 bitrate_compat;
b51f3bee 3582 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3583
3584 rate = nla_nest_start(msg, attr);
3585 if (!rate)
db9c64cf 3586 return false;
c8dcfd8a
FF		 3587
3588 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3589 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3590 /* report 16-bit bitrate only if we can */
3591 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3592 if (bitrate > 0 &&
3593 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3594 return false;
3595 if (bitrate_compat > 0 &&
3596 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3597 return false;
3598
b51f3bee
JB		 3599 switch (info->bw) {
3600 case RATE_INFO_BW_5:
3601 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3602 break;
3603 case RATE_INFO_BW_10:
3604 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3605 break;
3606 default:
3607 WARN_ON(1);
3608 /* fall through */
3609 case RATE_INFO_BW_20:
3610 rate_flg = 0;
3611 break;
3612 case RATE_INFO_BW_40:
3613 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3614 break;
3615 case RATE_INFO_BW_80:
3616 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3617 break;
3618 case RATE_INFO_BW_160:
3619 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3620 break;
3621 }
3622
3623 if (rate_flg && nla_put_flag(msg, rate_flg))
3624 return false;
3625
db9c64cf
JB		 3626 if (info->flags & RATE_INFO_FLAGS_MCS) {
3627 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3628 return false;
db9c64cf
JB		 3629 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3630 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3631 return false;
3632 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3633 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3634 return false;
3635 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3636 return false;
db9c64cf
JB		 3637 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3638 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3639 return false;
3640 }
c8dcfd8a
FF		 3641
3642 nla_nest_end(msg, rate);
3643 return true;
c8dcfd8a
FF		 3644}
3645
119363c7
FF		 3646static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3647 int id)
3648{
3649 void *attr;
3650 int i = 0;
3651
3652 if (!mask)
3653 return true;
3654
3655 attr = nla_nest_start(msg, id);
3656 if (!attr)
3657 return false;
3658
3659 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3660 if (!(mask & BIT(i)))
3661 continue;
3662
3663 if (nla_put_u8(msg, i, signal[i]))
3664 return false;
3665 }
3666
3667 nla_nest_end(msg, attr);
3668
3669 return true;
3670}
3671
cf5ead82
JB		 3672static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3673 u32 seq, int flags,
66266b3a
JL		 3674 struct cfg80211_registered_device *rdev,
3675 struct net_device *dev,
98b62183 3676 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3677{
3678 void *hdr;
f4263c98 3679 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3680
cf5ead82 3681 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3682 if (!hdr)
3683 return -1;
3684
9360ffd1
DM		 3685 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3686 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3687 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3688 goto nla_put_failure;
f5ea9120 3689
2ec600d6
LCC		 3690 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3691 if (!sinfoattr)
fd5b74dc 3692 goto nla_put_failure;
319090bf
JB		 3693
3694#define PUT_SINFO(attr, memb, type) do { \
3695 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3696 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3697 sinfo->memb)) \
3698 goto nla_put_failure; \
3699 } while (0)
3700
3701 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3702 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3703
3704 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3705 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3706 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3707 (u32)sinfo->rx_bytes))
9360ffd1 3708 goto nla_put_failure;
319090bf
JB		 3709
3710 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3711 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3712 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3713 (u32)sinfo->tx_bytes))
3714 goto nla_put_failure;
319090bf
JB		 3715
3716 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3717 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3718 PUT_SINFO(LLID, llid, u16);
3719 PUT_SINFO(PLID, plid, u16);
3720 PUT_SINFO(PLINK_STATE, plink_state, u8);
3721
66266b3a
JL		 3722 switch (rdev->wiphy.signal_type) {
3723 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3724 PUT_SINFO(SIGNAL, signal, u8);
3725 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3726 break;
3727 default:
3728 break;
3729 }
319090bf 3730 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3731 if (!nl80211_put_signal(msg, sinfo->chains,
3732 sinfo->chain_signal,
3733 NL80211_STA_INFO_CHAIN_SIGNAL))
3734 goto nla_put_failure;
3735 }
319090bf 3736 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3737 if (!nl80211_put_signal(msg, sinfo->chains,
3738 sinfo->chain_signal_avg,
3739 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3740 goto nla_put_failure;
3741 }
319090bf 3742 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3743 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3744 NL80211_STA_INFO_TX_BITRATE))
3745 goto nla_put_failure;
3746 }
319090bf 3747 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3748 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3749 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3750 goto nla_put_failure;
420e7fab 3751 }
319090bf
JB		 3752
3753 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3754 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3755 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3756 PUT_SINFO(TX_FAILED, tx_failed, u32);
3757 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3758 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3759 PUT_SINFO(LOCAL_PM, local_pm, u32);
3760 PUT_SINFO(PEER_PM, peer_pm, u32);
3761 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3762
3763 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3764 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3765 if (!bss_param)
3766 goto nla_put_failure;
3767
9360ffd1
DM		 3768 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3769 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3770 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3771 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3772 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3773 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3774 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3775 sinfo->bss_param.dtim_period) ||
3776 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3777 sinfo->bss_param.beacon_interval))
3778 goto nla_put_failure;
f4263c98
PS		 3779
3780 nla_nest_end(msg, bss_param);
3781 }
319090bf 3782 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3783 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3784 sizeof(struct nl80211_sta_flag_update),
3785 &sinfo->sta_flags))
3786 goto nla_put_failure;
319090bf
JB		 3787
3788 PUT_SINFO(T_OFFSET, t_offset, u64);
3789 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
a76b1942
JB		 3790 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3791 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3792
3793#undef PUT_SINFO
6de39808
JB		 3794
3795 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3796 struct nlattr *tidsattr;
3797 int tid;
3798
3799 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3800 if (!tidsattr)
3801 goto nla_put_failure;
3802
3803 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3804 struct cfg80211_tid_stats *tidstats;
3805 struct nlattr *tidattr;
3806
3807 tidstats = &sinfo->pertid[tid];
3808
3809 if (!tidstats->filled)
3810 continue;
3811
3812 tidattr = nla_nest_start(msg, tid + 1);
3813 if (!tidattr)
3814 goto nla_put_failure;
3815
3816#define PUT_TIDVAL(attr, memb, type) do { \
3817 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3818 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3819 tidstats->memb)) \
3820 goto nla_put_failure; \
3821 } while (0)
3822
3823 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3824 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3825 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3826 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3827
3828#undef PUT_TIDVAL
3829 nla_nest_end(msg, tidattr);
3830 }
3831
3832 nla_nest_end(msg, tidsattr);
3833 }
3834
2ec600d6 3835 nla_nest_end(msg, sinfoattr);
fd5b74dc 3836
319090bf 3837 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3838 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3839 sinfo->assoc_req_ies))
3840 goto nla_put_failure;
50d3dfb7 3841
fd5b74dc
JB		 3842 return genlmsg_end(msg, hdr);
3843
3844 nla_put_failure:
bc3ed28c
TG		 3845 genlmsg_cancel(msg, hdr);
3846 return -EMSGSIZE;
fd5b74dc
JB		 3847}
3848
2ec600d6 3849static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3850 struct netlink_callback *cb)
2ec600d6 3851{
2ec600d6 3852 struct station_info sinfo;
1b8ec87a 3853 struct cfg80211_registered_device *rdev;
97990a06 3854 struct wireless_dev *wdev;
2ec600d6 3855 u8 mac_addr[ETH_ALEN];
97990a06 3856 int sta_idx = cb->args[2];
2ec600d6 3857 int err;
2ec600d6 3858
1b8ec87a 3859 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3860 if (err)
3861 return err;
bba95fef 3862
97990a06
JB		 3863 if (!wdev->netdev) {
3864 err = -EINVAL;
3865 goto out_err;
3866 }
3867
1b8ec87a 3868 if (!rdev->ops->dump_station) {
eec60b03 3869 err = -EOPNOTSUPP;
bba95fef
JB		 3870 goto out_err;
3871 }
3872
bba95fef 3873 while (1) {
f612cedf 3874 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3875 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3876 mac_addr, &sinfo);
bba95fef
JB		 3877 if (err == -ENOENT)
3878 break;
3879 if (err)
3b85875a 3880 goto out_err;
bba95fef 3881
cf5ead82 3882 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3883 NETLINK_CB(cb->skb).portid,
bba95fef 3884 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3885 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3886 &sinfo) < 0)
3887 goto out;
3888
3889 sta_idx++;
3890 }
3891
3892
3893 out:
97990a06 3894 cb->args[2] = sta_idx;
bba95fef 3895 err = skb->len;
bba95fef 3896 out_err:
1b8ec87a 3897 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3898
3899 return err;
2ec600d6 3900}
fd5b74dc 3901
5727ef1b
JB		 3902static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3903{
4c476991
JB		 3904 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3905 struct net_device *dev = info->user_ptr[1];
2ec600d6 3906 struct station_info sinfo;
fd5b74dc
JB		 3907 struct sk_buff *msg;
3908 u8 *mac_addr = NULL;
4c476991 3909 int err;
fd5b74dc 3910
2ec600d6 3911 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3912
3913 if (!info->attrs[NL80211_ATTR_MAC])
3914 return -EINVAL;
3915
3916 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3917
4c476991
JB		 3918 if (!rdev->ops->get_station)
3919 return -EOPNOTSUPP;
3b85875a 3920
e35e4d28 3921 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3922 if (err)
4c476991 3923 return err;
2ec600d6 3924
fd2120ca 3925 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3926 if (!msg)
4c476991 3927 return -ENOMEM;
fd5b74dc 3928
cf5ead82
JB		 3929 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3930 info->snd_portid, info->snd_seq, 0,
66266b3a 3931 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3932 nlmsg_free(msg);
3933 return -ENOBUFS;
3934 }
3b85875a 3935
4c476991 3936 return genlmsg_reply(msg, info);
5727ef1b
JB		 3937}
3938
77ee7c89
JB		 3939int cfg80211_check_station_change(struct wiphy *wiphy,
3940 struct station_parameters *params,
3941 enum cfg80211_station_type statype)
3942{
3943 if (params->listen_interval != -1)
3944 return -EINVAL;
c72e1140
AN		 3945 if (params->aid &&
3946 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3947 return -EINVAL;
3948
3949 /* When you run into this, adjust the code below for the new flag */
3950 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3951
3952 switch (statype) {
eef941e6
TP		 3953 case CFG80211_STA_MESH_PEER_KERNEL:
3954 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3955 /*
3956 * No ignoring the TDLS flag here -- the userspace mesh
3957 * code doesn't have the bug of including TDLS in the
3958 * mask everywhere.
3959 */
3960 if (params->sta_flags_mask &
3961 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3962 BIT(NL80211_STA_FLAG_MFP) |
3963 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3964 return -EINVAL;
3965 break;
3966 case CFG80211_STA_TDLS_PEER_SETUP:
3967 case CFG80211_STA_TDLS_PEER_ACTIVE:
3968 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3969 return -EINVAL;
3970 /* ignore since it can't change */
3971 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3972 break;
3973 default:
3974 /* disallow mesh-specific things */
3975 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3976 return -EINVAL;
3977 if (params->local_pm)
3978 return -EINVAL;
3979 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3980 return -EINVAL;
3981 }
3982
3983 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3984 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3985 /* TDLS can't be set, ... */
3986 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3987 return -EINVAL;
3988 /*
3989 * ... but don't bother the driver with it. This works around
3990 * a hostapd/wpa_supplicant issue -- it always includes the
3991 * TLDS_PEER flag in the mask even for AP mode.
3992 */
3993 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3994 }
3995
3996 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3997 /* reject other things that can't change */
3998 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3999 return -EINVAL;
4000 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4001 return -EINVAL;
4002 if (params->supported_rates)
4003 return -EINVAL;
4004 if (params->ext_capab || params->ht_capa || params->vht_capa)
4005 return -EINVAL;
4006 }
4007
4008 if (statype != CFG80211_STA_AP_CLIENT) {
4009 if (params->vlan)
4010 return -EINVAL;
4011 }
4012
4013 switch (statype) {
4014 case CFG80211_STA_AP_MLME_CLIENT:
4015 /* Use this only for authorizing/unauthorizing a station */
4016 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4017 return -EOPNOTSUPP;
4018 break;
4019 case CFG80211_STA_AP_CLIENT:
4020 /* accept only the listed bits */
4021 if (params->sta_flags_mask &
4022 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4023 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4024 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4025 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4026 BIT(NL80211_STA_FLAG_WME) |
4027 BIT(NL80211_STA_FLAG_MFP)))
4028 return -EINVAL;
4029
4030 /* but authenticated/associated only if driver handles it */
4031 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4032 params->sta_flags_mask &
4033 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4034 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4035 return -EINVAL;
4036 break;
4037 case CFG80211_STA_IBSS:
4038 case CFG80211_STA_AP_STA:
4039 /* reject any changes other than AUTHORIZED */
4040 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4041 return -EINVAL;
4042 break;
4043 case CFG80211_STA_TDLS_PEER_SETUP:
4044 /* reject any changes other than AUTHORIZED or WME */
4045 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4046 BIT(NL80211_STA_FLAG_WME)))
4047 return -EINVAL;
4048 /* force (at least) rates when authorizing */
4049 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4050 !params->supported_rates)
4051 return -EINVAL;
4052 break;
4053 case CFG80211_STA_TDLS_PEER_ACTIVE:
4054 /* reject any changes */
4055 return -EINVAL;
eef941e6 4056 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4057 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4058 return -EINVAL;
4059 break;
eef941e6 4060 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4061 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4062 return -EINVAL;
4063 break;
4064 }
4065
4066 return 0;
4067}
4068EXPORT_SYMBOL(cfg80211_check_station_change);
4069
5727ef1b 4070/*
c258d2de 4071 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4072 */
80b99899
JB		 4073static struct net_device *get_vlan(struct genl_info *info,
4074 struct cfg80211_registered_device *rdev)
5727ef1b 4075{
463d0183 4076 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4077 struct net_device *v;
4078 int ret;
4079
4080 if (!vlanattr)
4081 return NULL;
4082
4083 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4084 if (!v)
4085 return ERR_PTR(-ENODEV);
4086
4087 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4088 ret = -EINVAL;
4089 goto error;
5727ef1b 4090 }
80b99899 4091
77ee7c89
JB		 4092 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4093 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4094 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4095 ret = -EINVAL;
4096 goto error;
4097 }
4098
80b99899
JB		 4099 if (!netif_running(v)) {
4100 ret = -ENETDOWN;
4101 goto error;
4102 }
4103
4104 return v;
4105 error:
4106 dev_put(v);
4107 return ERR_PTR(ret);
5727ef1b
JB		 4108}
4109
94e860f1
JB		 4110static const struct nla_policy
4111nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4112 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4113 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4114};
4115
ff276691
JB		 4116static int nl80211_parse_sta_wme(struct genl_info *info,
4117 struct station_parameters *params)
df881293 4118{
df881293
JM		 4119 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4120 struct nlattr *nla;
4121 int err;
4122
df881293
JM		 4123 /* parse WME attributes if present */
4124 if (!info->attrs[NL80211_ATTR_STA_WME])
4125 return 0;
4126
4127 nla = info->attrs[NL80211_ATTR_STA_WME];
4128 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4129 nl80211_sta_wme_policy);
4130 if (err)
4131 return err;
4132
4133 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4134 params->uapsd_queues = nla_get_u8(
4135 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4136 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4137 return -EINVAL;
4138
4139 if (tb[NL80211_STA_WME_MAX_SP])
4140 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4141
4142 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4143 return -EINVAL;
4144
4145 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4146
4147 return 0;
4148}
4149
c01fc9ad
SD		 4150static int nl80211_parse_sta_channel_info(struct genl_info *info,
4151 struct station_parameters *params)
4152{
4153 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4154 params->supported_channels =
4155 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4156 params->supported_channels_len =
4157 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4158 /*
4159 * Need to include at least one (first channel, number of
4160 * channels) tuple for each subband, and must have proper
4161 * tuples for the rest of the data as well.
4162 */
4163 if (params->supported_channels_len < 2)
4164 return -EINVAL;
4165 if (params->supported_channels_len % 2)
4166 return -EINVAL;
4167 }
4168
4169 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4170 params->supported_oper_classes =
4171 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4172 params->supported_oper_classes_len =
4173 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4174 /*
4175 * The value of the Length field of the Supported Operating
4176 * Classes element is between 2 and 253.
4177 */
4178 if (params->supported_oper_classes_len < 2 ||
4179 params->supported_oper_classes_len > 253)
4180 return -EINVAL;
4181 }
4182 return 0;
4183}
4184
ff276691
JB		 4185static int nl80211_set_station_tdls(struct genl_info *info,
4186 struct station_parameters *params)
4187{
c01fc9ad 4188 int err;
ff276691 4189 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4190 if (info->attrs[NL80211_ATTR_PEER_AID])
4191 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4192 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4193 params->ht_capa =
4194 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4195 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4196 params->vht_capa =
4197 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4198
c01fc9ad
SD		 4199 err = nl80211_parse_sta_channel_info(info, params);
4200 if (err)
4201 return err;
4202
ff276691
JB		 4203 return nl80211_parse_sta_wme(info, params);
4204}
4205
5727ef1b
JB		 4206static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4207{
4c476991 4208 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4209 struct net_device *dev = info->user_ptr[1];
5727ef1b 4210 struct station_parameters params;
77ee7c89
JB		 4211 u8 *mac_addr;
4212 int err;
5727ef1b
JB		 4213
4214 memset(&params, 0, sizeof(params));
4215
4216 params.listen_interval = -1;
4217
77ee7c89
JB		 4218 if (!rdev->ops->change_station)
4219 return -EOPNOTSUPP;
4220
5727ef1b
JB		 4221 if (info->attrs[NL80211_ATTR_STA_AID])
4222 return -EINVAL;
4223
4224 if (!info->attrs[NL80211_ATTR_MAC])
4225 return -EINVAL;
4226
4227 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4228
4229 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4230 params.supported_rates =
4231 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4232 params.supported_rates_len =
4233 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4234 }
4235
9d62a986
JM		 4236 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4237 params.capability =
4238 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4239 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4240 }
4241
4242 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4243 params.ext_capab =
4244 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4245 params.ext_capab_len =
4246 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4247 }
4248
df881293 4249 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4250 return -EINVAL;
36aedc90 4251
bdd3ae3d 4252 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4253 return -EINVAL;
4254
f8bacc21 4255 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4256 params.plink_action =
f8bacc21
JB		 4257 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4258 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4259 return -EINVAL;
4260 }
2ec600d6 4261
f8bacc21 4262 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4263 params.plink_state =
f8bacc21
JB		 4264 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4265 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4266 return -EINVAL;
4267 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4268 }
9c3990aa 4269
3b1c5a53
MP		 4270 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4271 enum nl80211_mesh_power_mode pm = nla_get_u32(
4272 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4273
4274 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4275 pm > NL80211_MESH_POWER_MAX)
4276 return -EINVAL;
4277
4278 params.local_pm = pm;
4279 }
4280
77ee7c89
JB		 4281 /* Include parameters for TDLS peer (will check later) */
4282 err = nl80211_set_station_tdls(info, &params);
4283 if (err)
4284 return err;
4285
4286 params.vlan = get_vlan(info, rdev);
4287 if (IS_ERR(params.vlan))
4288 return PTR_ERR(params.vlan);
4289
a97f4424
JB		 4290 switch (dev->ieee80211_ptr->iftype) {
4291 case NL80211_IFTYPE_AP:
4292 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4293 case NL80211_IFTYPE_P2P_GO:
074ac8df 4294 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4295 case NL80211_IFTYPE_STATION:
267335d6 4296 case NL80211_IFTYPE_ADHOC:
a97f4424 4297 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4298 break;
4299 default:
77ee7c89
JB		 4300 err = -EOPNOTSUPP;
4301 goto out_put_vlan;
034d655e
JB		 4302 }
4303
77ee7c89 4304 /* driver will call cfg80211_check_station_change() */
e35e4d28 4305 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4306
77ee7c89 4307 out_put_vlan:
5727ef1b
JB		 4308 if (params.vlan)
4309 dev_put(params.vlan);
3b85875a 4310
5727ef1b
JB		 4311 return err;
4312}
4313
4314static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4315{
4c476991 4316 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4317 int err;
4c476991 4318 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4319 struct station_parameters params;
4320 u8 *mac_addr = NULL;
4321
4322 memset(&params, 0, sizeof(params));
4323
984c311b
JB		 4324 if (!rdev->ops->add_station)
4325 return -EOPNOTSUPP;
4326
5727ef1b
JB		 4327 if (!info->attrs[NL80211_ATTR_MAC])
4328 return -EINVAL;
4329
5727ef1b
JB		 4330 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4331 return -EINVAL;
4332
4333 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4334 return -EINVAL;
4335
5e4b6f56
JM		 4336 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4337 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4338 return -EINVAL;
4339
5727ef1b
JB		 4340 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4341 params.supported_rates =
4342 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4343 params.supported_rates_len =
4344 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4345 params.listen_interval =
4346 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4347
3d124ea2 4348 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4349 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4350 else
4351 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4352 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4353 return -EINVAL;
51b50fbe 4354
9d62a986
JM		 4355 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4356 params.capability =
4357 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4358 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4359 }
4360
4361 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4362 params.ext_capab =
4363 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4364 params.ext_capab_len =
4365 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4366 }
4367
36aedc90
JM		 4368 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4369 params.ht_capa =
4370 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4371
f461be3e
MP		 4372 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4373 params.vht_capa =
4374 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4375
60f4a7b1
MK		 4376 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4377 params.opmode_notif_used = true;
4378 params.opmode_notif =
4379 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4380 }
4381
f8bacc21 4382 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4383 params.plink_action =
f8bacc21
JB		 4384 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4385 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4386 return -EINVAL;
4387 }
96b78dff 4388
c01fc9ad
SD		 4389 err = nl80211_parse_sta_channel_info(info, &params);
4390 if (err)
4391 return err;
4392
ff276691
JB		 4393 err = nl80211_parse_sta_wme(info, &params);
4394 if (err)
4395 return err;
bdd90d5e 4396
bdd3ae3d 4397 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4398 return -EINVAL;
4399
77ee7c89
JB		 4400 /* When you run into this, adjust the code below for the new flag */
4401 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4402
bdd90d5e
JB		 4403 switch (dev->ieee80211_ptr->iftype) {
4404 case NL80211_IFTYPE_AP:
4405 case NL80211_IFTYPE_AP_VLAN:
4406 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4407 /* ignore WME attributes if iface/sta is not capable */
4408 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4409 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4410 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4411
bdd90d5e 4412 /* TDLS peers cannot be added */
3d124ea2
JM		 4413 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4414 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4415 return -EINVAL;
bdd90d5e
JB		 4416 /* but don't bother the driver with it */
4417 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4418
d582cffb
JB		 4419 /* allow authenticated/associated only if driver handles it */
4420 if (!(rdev->wiphy.features &
4421 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4422 params.sta_flags_mask &
4423 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4424 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4425 return -EINVAL;
4426
bdd90d5e
JB		 4427 /* must be last in here for error handling */
4428 params.vlan = get_vlan(info, rdev);
4429 if (IS_ERR(params.vlan))
4430 return PTR_ERR(params.vlan);
4431 break;
4432 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4433 /* ignore uAPSD data */
4434 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4435
d582cffb
JB		 4436 /* associated is disallowed */
4437 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4438 return -EINVAL;
bdd90d5e 4439 /* TDLS peers cannot be added */
3d124ea2
JM		 4440 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4441 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4442 return -EINVAL;
4443 break;
4444 case NL80211_IFTYPE_STATION:
93d08f0b 4445 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4446 /* ignore uAPSD data */
4447 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4448
77ee7c89
JB		 4449 /* these are disallowed */
4450 if (params.sta_flags_mask &
4451 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4452 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4453 return -EINVAL;
bdd90d5e
JB		 4454 /* Only TDLS peers can be added */
4455 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4456 return -EINVAL;
4457 /* Can only add if TDLS ... */
4458 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4459 return -EOPNOTSUPP;
4460 /* ... with external setup is supported */
4461 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4462 return -EOPNOTSUPP;
77ee7c89
JB		 4463 /*
4464 * Older wpa_supplicant versions always mark the TDLS peer
4465 * as authorized, but it shouldn't yet be.
4466 */
4467 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4468 break;
4469 default:
4470 return -EOPNOTSUPP;
c75786c9
EP		 4471 }
4472
bdd90d5e 4473 /* be aware of params.vlan when changing code here */
5727ef1b 4474
e35e4d28 4475 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4476
5727ef1b
JB		 4477 if (params.vlan)
4478 dev_put(params.vlan);
5727ef1b
JB		 4479 return err;
4480}
4481
4482static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4483{
4c476991
JB		 4484 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4485 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4486 struct station_del_parameters params;
4487
4488 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4489
4490 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4491 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4492
e80cf853 4493 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4494 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4495 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4496 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4497 return -EINVAL;
5727ef1b 4498
4c476991
JB		 4499 if (!rdev->ops->del_station)
4500 return -EOPNOTSUPP;
3b85875a 4501
98856866
JM		 4502 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4503 params.subtype =
4504 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4505 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4506 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4507 return -EINVAL;
4508 } else {
4509 /* Default to Deauthentication frame */
4510 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4511 }
4512
4513 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4514 params.reason_code =
4515 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4516 if (params.reason_code == 0)
4517 return -EINVAL; /* 0 is reserved */
4518 } else {
4519 /* Default to reason code 2 */
4520 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4521 }
4522
89c771e5 4523 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4524}
4525
15e47304 4526static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4527 int flags, struct net_device *dev,
4528 u8 *dst, u8 *next_hop,
4529 struct mpath_info *pinfo)
4530{
4531 void *hdr;
4532 struct nlattr *pinfoattr;
4533
1ef4c850 4534 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4535 if (!hdr)
4536 return -1;
4537
9360ffd1
DM		 4538 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4539 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4540 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4541 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4542 goto nla_put_failure;
f5ea9120 4543
2ec600d6
LCC		 4544 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4545 if (!pinfoattr)
4546 goto nla_put_failure;
9360ffd1
DM		 4547 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4548 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4549 pinfo->frame_qlen))
4550 goto nla_put_failure;
4551 if (((pinfo->filled & MPATH_INFO_SN) &&
4552 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4553 ((pinfo->filled & MPATH_INFO_METRIC) &&
4554 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4555 pinfo->metric)) ||
4556 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4557 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4558 pinfo->exptime)) ||
4559 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4560 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4561 pinfo->flags)) ||
4562 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4563 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4564 pinfo->discovery_timeout)) ||
4565 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4566 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4567 pinfo->discovery_retries)))
4568 goto nla_put_failure;
2ec600d6
LCC		 4569
4570 nla_nest_end(msg, pinfoattr);
4571
4572 return genlmsg_end(msg, hdr);
4573
4574 nla_put_failure:
bc3ed28c
TG		 4575 genlmsg_cancel(msg, hdr);
4576 return -EMSGSIZE;
2ec600d6
LCC		 4577}
4578
4579static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4580 struct netlink_callback *cb)
2ec600d6 4581{
2ec600d6 4582 struct mpath_info pinfo;
1b8ec87a 4583 struct cfg80211_registered_device *rdev;
97990a06 4584 struct wireless_dev *wdev;
2ec600d6
LCC		 4585 u8 dst[ETH_ALEN];
4586 u8 next_hop[ETH_ALEN];
97990a06 4587 int path_idx = cb->args[2];
2ec600d6 4588 int err;
2ec600d6 4589
1b8ec87a 4590 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4591 if (err)
4592 return err;
bba95fef 4593
1b8ec87a 4594 if (!rdev->ops->dump_mpath) {
eec60b03 4595 err = -EOPNOTSUPP;
bba95fef
JB		 4596 goto out_err;
4597 }
4598
97990a06 4599 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4600 err = -EOPNOTSUPP;
0448b5fc 4601 goto out_err;
eec60b03
JM		 4602 }
4603
bba95fef 4604 while (1) {
1b8ec87a 4605 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4606 next_hop, &pinfo);
bba95fef 4607 if (err == -ENOENT)
2ec600d6 4608 break;
bba95fef 4609 if (err)
3b85875a 4610 goto out_err;
2ec600d6 4611
15e47304 4612 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4613 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4614 wdev->netdev, dst, next_hop,
bba95fef
JB		 4615 &pinfo) < 0)
4616 goto out;
2ec600d6 4617
bba95fef 4618 path_idx++;
2ec600d6 4619 }
2ec600d6 4620
2ec600d6 4621
bba95fef 4622 out:
97990a06 4623 cb->args[2] = path_idx;
bba95fef 4624 err = skb->len;
bba95fef 4625 out_err:
1b8ec87a 4626 nl80211_finish_wdev_dump(rdev);
bba95fef 4627 return err;
2ec600d6
LCC		 4628}
4629
4630static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4631{
4c476991 4632 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4633 int err;
4c476991 4634 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4635 struct mpath_info pinfo;
4636 struct sk_buff *msg;
4637 u8 *dst = NULL;
4638 u8 next_hop[ETH_ALEN];
4639
4640 memset(&pinfo, 0, sizeof(pinfo));
4641
4642 if (!info->attrs[NL80211_ATTR_MAC])
4643 return -EINVAL;
4644
4645 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4646
4c476991
JB		 4647 if (!rdev->ops->get_mpath)
4648 return -EOPNOTSUPP;
2ec600d6 4649
4c476991
JB		 4650 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4651 return -EOPNOTSUPP;
eec60b03 4652
e35e4d28 4653 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4654 if (err)
4c476991 4655 return err;
2ec600d6 4656
fd2120ca 4657 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4658 if (!msg)
4c476991 4659 return -ENOMEM;
2ec600d6 4660
15e47304 4661 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4662 dev, dst, next_hop, &pinfo) < 0) {
4663 nlmsg_free(msg);
4664 return -ENOBUFS;
4665 }
3b85875a 4666
4c476991 4667 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4668}
4669
4670static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4671{
4c476991
JB		 4672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4673 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4674 u8 *dst = NULL;
4675 u8 *next_hop = NULL;
4676
4677 if (!info->attrs[NL80211_ATTR_MAC])
4678 return -EINVAL;
4679
4680 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4681 return -EINVAL;
4682
4683 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4684 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4685
4c476991
JB		 4686 if (!rdev->ops->change_mpath)
4687 return -EOPNOTSUPP;
35a8efe1 4688
4c476991
JB		 4689 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4690 return -EOPNOTSUPP;
2ec600d6 4691
e35e4d28 4692 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4693}
4c476991 4694
2ec600d6
LCC		 4695static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4696{
4c476991
JB		 4697 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4698 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4699 u8 *dst = NULL;
4700 u8 *next_hop = NULL;
4701
4702 if (!info->attrs[NL80211_ATTR_MAC])
4703 return -EINVAL;
4704
4705 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4706 return -EINVAL;
4707
4708 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4709 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4710
4c476991
JB		 4711 if (!rdev->ops->add_mpath)
4712 return -EOPNOTSUPP;
35a8efe1 4713
4c476991
JB		 4714 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4715 return -EOPNOTSUPP;
2ec600d6 4716
e35e4d28 4717 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4718}
4719
4720static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4721{
4c476991
JB		 4722 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4723 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4724 u8 *dst = NULL;
4725
4726 if (info->attrs[NL80211_ATTR_MAC])
4727 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4728
4c476991
JB		 4729 if (!rdev->ops->del_mpath)
4730 return -EOPNOTSUPP;
3b85875a 4731
e35e4d28 4732 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4733}
4734
66be7d2b
HR		 4735static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4736{
4737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4738 int err;
4739 struct net_device *dev = info->user_ptr[1];
4740 struct mpath_info pinfo;
4741 struct sk_buff *msg;
4742 u8 *dst = NULL;
4743 u8 mpp[ETH_ALEN];
4744
4745 memset(&pinfo, 0, sizeof(pinfo));
4746
4747 if (!info->attrs[NL80211_ATTR_MAC])
4748 return -EINVAL;
4749
4750 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4751
4752 if (!rdev->ops->get_mpp)
4753 return -EOPNOTSUPP;
4754
4755 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4756 return -EOPNOTSUPP;
4757
4758 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4759 if (err)
4760 return err;
4761
4762 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4763 if (!msg)
4764 return -ENOMEM;
4765
4766 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4767 dev, dst, mpp, &pinfo) < 0) {
4768 nlmsg_free(msg);
4769 return -ENOBUFS;
4770 }
4771
4772 return genlmsg_reply(msg, info);
4773}
4774
4775static int nl80211_dump_mpp(struct sk_buff *skb,
4776 struct netlink_callback *cb)
4777{
4778 struct mpath_info pinfo;
4779 struct cfg80211_registered_device *rdev;
4780 struct wireless_dev *wdev;
4781 u8 dst[ETH_ALEN];
4782 u8 mpp[ETH_ALEN];
4783 int path_idx = cb->args[2];
4784 int err;
4785
4786 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4787 if (err)
4788 return err;
4789
4790 if (!rdev->ops->dump_mpp) {
4791 err = -EOPNOTSUPP;
4792 goto out_err;
4793 }
4794
4795 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4796 err = -EOPNOTSUPP;
4797 goto out_err;
4798 }
4799
4800 while (1) {
4801 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4802 mpp, &pinfo);
4803 if (err == -ENOENT)
4804 break;
4805 if (err)
4806 goto out_err;
4807
4808 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4809 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4810 wdev->netdev, dst, mpp,
4811 &pinfo) < 0)
4812 goto out;
4813
4814 path_idx++;
4815 }
4816
4817 out:
4818 cb->args[2] = path_idx;
4819 err = skb->len;
4820 out_err:
4821 nl80211_finish_wdev_dump(rdev);
4822 return err;
4823}
4824
9f1ba906
JM		 4825static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4826{
4c476991
JB		 4827 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4828 struct net_device *dev = info->user_ptr[1];
c56589ed 4829 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4830 struct bss_parameters params;
c56589ed 4831 int err;
9f1ba906
JM		 4832
4833 memset(&params, 0, sizeof(params));
4834 /* default to not changing parameters */
4835 params.use_cts_prot = -1;
4836 params.use_short_preamble = -1;
4837 params.use_short_slot_time = -1;
fd8aaaf3 4838 params.ap_isolate = -1;
50b12f59 4839 params.ht_opmode = -1;
53cabad7
JB		 4840 params.p2p_ctwindow = -1;
4841 params.p2p_opp_ps = -1;
9f1ba906
JM		 4842
4843 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4844 params.use_cts_prot =
4845 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4846 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4847 params.use_short_preamble =
4848 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4849 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4850 params.use_short_slot_time =
4851 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4852 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4853 params.basic_rates =
4854 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4855 params.basic_rates_len =
4856 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4857 }
fd8aaaf3
FF		 4858 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4859 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4860 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4861 params.ht_opmode =
4862 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4863
53cabad7
JB		 4864 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4865 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4866 return -EINVAL;
4867 params.p2p_ctwindow =
4868 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4869 if (params.p2p_ctwindow < 0)
4870 return -EINVAL;
4871 if (params.p2p_ctwindow != 0 &&
4872 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4873 return -EINVAL;
4874 }
4875
4876 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4877 u8 tmp;
4878
4879 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4880 return -EINVAL;
4881 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4882 if (tmp > 1)
4883 return -EINVAL;
4884 params.p2p_opp_ps = tmp;
4885 if (params.p2p_opp_ps &&
4886 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4887 return -EINVAL;
4888 }
4889
4c476991
JB		 4890 if (!rdev->ops->change_bss)
4891 return -EOPNOTSUPP;
9f1ba906 4892
074ac8df 4893 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4894 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4895 return -EOPNOTSUPP;
3b85875a 4896
c56589ed
SW		 4897 wdev_lock(wdev);
4898 err = rdev_change_bss(rdev, dev, &params);
4899 wdev_unlock(wdev);
4900
4901 return err;
9f1ba906
JM		 4902}
4903
b54452b0 4904static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4905 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4906 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4907 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4908 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4909 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4910 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4911 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4912};
4913
4914static int parse_reg_rule(struct nlattr *tb[],
4915 struct ieee80211_reg_rule *reg_rule)
4916{
4917 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4918 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4919
4920 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4921 return -EINVAL;
4922 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4923 return -EINVAL;
4924 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4925 return -EINVAL;
b0dfd2ea
JD		 4926 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4927 return -EINVAL;
b2e1b302
LR		 4928 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4929 return -EINVAL;
4930
4931 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4932
4933 freq_range->start_freq_khz =
4934 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4935 freq_range->end_freq_khz =
4936 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4937 freq_range->max_bandwidth_khz =
4938 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4939
4940 power_rule->max_eirp =
4941 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4942
4943 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4944 power_rule->max_antenna_gain =
4945 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4946
089027e5
JD		 4947 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4948 reg_rule->dfs_cac_ms =
4949 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4950
b2e1b302
LR		 4951 return 0;
4952}
4953
4954static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4955{
b2e1b302 4956 char *data = NULL;
57b5ce07 4957 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4958
80778f18
LR		 4959 /*
4960 * You should only get this when cfg80211 hasn't yet initialized
4961 * completely when built-in to the kernel right between the time
4962 * window between nl80211_init() and regulatory_init(), if that is
4963 * even possible.
4964 */
458f4f9e 4965 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4966 return -EINPROGRESS;
80778f18 4967
57b5ce07
LR		 4968 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4969 user_reg_hint_type =
4970 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4971 else
4972 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4973
4974 switch (user_reg_hint_type) {
4975 case NL80211_USER_REG_HINT_USER:
4976 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4977 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4978 return -EINVAL;
4979
4980 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4981 return regulatory_hint_user(data, user_reg_hint_type);
4982 case NL80211_USER_REG_HINT_INDOOR:
4983 return regulatory_hint_indoor_user();
57b5ce07
LR		 4984 default:
4985 return -EINVAL;
4986 }
b2e1b302
LR		 4987}
4988
24bdd9f4 4989static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4990 struct genl_info *info)
93da9cc1 4991{
4c476991 4992 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4993 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4994 struct wireless_dev *wdev = dev->ieee80211_ptr;
4995 struct mesh_config cur_params;
4996 int err = 0;
93da9cc1 4997 void *hdr;
4998 struct nlattr *pinfoattr;
4999 struct sk_buff *msg;
5000
29cbe68c
JB		 5001 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5002 return -EOPNOTSUPP;
5003
24bdd9f4 5004 if (!rdev->ops->get_mesh_config)
4c476991 5005 return -EOPNOTSUPP;
f3f92586 5006
29cbe68c
JB		 5007 wdev_lock(wdev);
5008 /* If not connected, get default parameters */
5009 if (!wdev->mesh_id_len)
5010 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5011 else
e35e4d28 5012 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5013 wdev_unlock(wdev);
5014
93da9cc1 5015 if (err)
4c476991 5016 return err;
93da9cc1 5017
5018 /* Draw up a netlink message to send back */
fd2120ca 5019 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5020 if (!msg)
5021 return -ENOMEM;
15e47304 5022 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5023 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5024 if (!hdr)
efe1cf0c 5025 goto out;
24bdd9f4 5026 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5027 if (!pinfoattr)
5028 goto nla_put_failure;
9360ffd1
DM		 5029 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5030 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5031 cur_params.dot11MeshRetryTimeout) ||
5032 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5033 cur_params.dot11MeshConfirmTimeout) ||
5034 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5035 cur_params.dot11MeshHoldingTimeout) ||
5036 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5037 cur_params.dot11MeshMaxPeerLinks) ||
5038 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5039 cur_params.dot11MeshMaxRetries) ||
5040 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5041 cur_params.dot11MeshTTL) ||
5042 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5043 cur_params.element_ttl) ||
5044 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5045 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5046 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5047 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5048 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5049 cur_params.dot11MeshHWMPmaxPREQretries) ||
5050 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5051 cur_params.path_refresh_time) ||
5052 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5053 cur_params.min_discovery_timeout) ||
5054 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5055 cur_params.dot11MeshHWMPactivePathTimeout) ||
5056 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5057 cur_params.dot11MeshHWMPpreqMinInterval) ||
5058 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5059 cur_params.dot11MeshHWMPperrMinInterval) ||
5060 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5061 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5062 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5063 cur_params.dot11MeshHWMPRootMode) ||
5064 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5065 cur_params.dot11MeshHWMPRannInterval) ||
5066 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5067 cur_params.dot11MeshGateAnnouncementProtocol) ||
5068 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5069 cur_params.dot11MeshForwarding) ||
5070 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5071 cur_params.rssi_threshold) ||
5072 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5073 cur_params.ht_opmode) ||
5074 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5075 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5076 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5077 cur_params.dot11MeshHWMProotInterval) ||
5078 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5079 cur_params.dot11MeshHWMPconfirmationInterval) ||
5080 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5081 cur_params.power_mode) ||
5082 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5083 cur_params.dot11MeshAwakeWindowDuration) ||
5084 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5085 cur_params.plink_timeout))
9360ffd1 5086 goto nla_put_failure;
93da9cc1 5087 nla_nest_end(msg, pinfoattr);
5088 genlmsg_end(msg, hdr);
4c476991 5089 return genlmsg_reply(msg, info);
93da9cc1 5090
3b85875a 5091 nla_put_failure:
93da9cc1 5092 genlmsg_cancel(msg, hdr);
efe1cf0c 5093 out:
d080e275 5094 nlmsg_free(msg);
4c476991 5095 return -ENOBUFS;
93da9cc1 5096}
5097
b54452b0 5098static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5099 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5100 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5101 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5102 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5103 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5104 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5105 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5106 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5107 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5108 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5109 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5110 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5111 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5112 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5113 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5114 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5115 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5116 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5117 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5118 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5119 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5120 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5121 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5122 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5123 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5124 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5125 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5126 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5127};
5128
c80d545d
JC		 5129static const struct nla_policy
5130 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5131 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5132 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5133 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5134 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5135 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5136 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5137 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5138 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5139 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5140};
5141
24bdd9f4 5142static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5143 struct mesh_config *cfg,
5144 u32 *mask_out)
93da9cc1 5145{
93da9cc1 5146 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5147 u32 mask = 0;
93da9cc1 5148
ea54fba2
MP		 5149#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5150do { \
5151 if (tb[attr]) { \
5152 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5153 return -EINVAL; \
5154 cfg->param = fn(tb[attr]); \
5155 mask |= (1 << (attr - 1)); \
5156 } \
5157} while (0)
bd90fdcc
JB		 5158
5159
24bdd9f4 5160 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5161 return -EINVAL;
5162 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5163 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5164 nl80211_meshconf_params_policy))
93da9cc1 5165 return -EINVAL;
5166
93da9cc1 5167 /* This makes sure that there aren't more than 32 mesh config
5168 * parameters (otherwise our bitfield scheme would not work.) */
5169 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5170
5171 /* Fill in the params struct */
ea54fba2 5172 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5173 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5174 nla_get_u16);
ea54fba2 5175 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5176 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5177 nla_get_u16);
ea54fba2 5178 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5179 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5180 nla_get_u16);
ea54fba2 5181 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5182 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5183 nla_get_u16);
ea54fba2 5184 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5185 mask, NL80211_MESHCONF_MAX_RETRIES,
5186 nla_get_u8);
ea54fba2 5187 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5188 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5189 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5190 mask, NL80211_MESHCONF_ELEMENT_TTL,
5191 nla_get_u8);
ea54fba2 5192 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5193 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5194 nla_get_u8);
ea54fba2
MP		 5195 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5196 1, 255, mask,
a4f606ea
CYY		 5197 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5198 nla_get_u32);
ea54fba2 5199 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5200 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5201 nla_get_u8);
ea54fba2 5202 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5203 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5204 nla_get_u32);
ea54fba2 5205 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5206 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5207 nla_get_u16);
ea54fba2
MP		 5208 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5209 1, 65535, mask,
a4f606ea
CYY		 5210 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5211 nla_get_u32);
93da9cc1 5212 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5213 1, 65535, mask,
5214 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5215 nla_get_u16);
dca7e943 5216 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5217 1, 65535, mask,
5218 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5219 nla_get_u16);
93da9cc1 5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5221 dot11MeshHWMPnetDiameterTraversalTime,
5222 1, 65535, mask,
a4f606ea
CYY		 5223 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5224 nla_get_u16);
ea54fba2
MP		 5225 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5226 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5227 nla_get_u8);
5228 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5229 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5230 nla_get_u16);
63c5723b 5231 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5232 dot11MeshGateAnnouncementProtocol, 0, 1,
5233 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5234 nla_get_u8);
ea54fba2 5235 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5236 mask, NL80211_MESHCONF_FORWARDING,
5237 nla_get_u8);
83374fe9 5238 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5239 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5240 nla_get_s32);
ea54fba2 5241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5242 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5243 nla_get_u16);
5244 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5245 1, 65535, mask,
ac1073a6
CYY		 5246 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5247 nla_get_u32);
ea54fba2 5248 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5249 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5250 nla_get_u16);
5251 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5252 dot11MeshHWMPconfirmationInterval,
5253 1, 65535, mask,
728b19e5 5254 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5255 nla_get_u16);
3b1c5a53
MP		 5256 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5257 NL80211_MESH_POWER_ACTIVE,
5258 NL80211_MESH_POWER_MAX,
5259 mask, NL80211_MESHCONF_POWER_MODE,
5260 nla_get_u32);
5261 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5262 0, 65535, mask,
5263 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5264 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5265 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5266 nla_get_u32);
bd90fdcc
JB		 5267 if (mask_out)
5268 *mask_out = mask;
c80d545d 5269
bd90fdcc
JB		 5270 return 0;
5271
5272#undef FILL_IN_MESH_PARAM_IF_SET
5273}
5274
c80d545d
JC		 5275static int nl80211_parse_mesh_setup(struct genl_info *info,
5276 struct mesh_setup *setup)
5277{
bb2798d4 5278 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5279 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5280
5281 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5282 return -EINVAL;
5283 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5284 info->attrs[NL80211_ATTR_MESH_SETUP],
5285 nl80211_mesh_setup_params_policy))
5286 return -EINVAL;
5287
d299a1f2
JC		 5288 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5289 setup->sync_method =
5290 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5291 IEEE80211_SYNC_METHOD_VENDOR :
5292 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5293
c80d545d
JC		 5294 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5295 setup->path_sel_proto =
5296 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5297 IEEE80211_PATH_PROTOCOL_VENDOR :
5298 IEEE80211_PATH_PROTOCOL_HWMP;
5299
5300 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5301 setup->path_metric =
5302 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5303 IEEE80211_PATH_METRIC_VENDOR :
5304 IEEE80211_PATH_METRIC_AIRTIME;
5305
581a8b0f
JC		 5306
5307 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5308 struct nlattr *ieattr =
581a8b0f 5309 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5310 if (!is_valid_ie_attr(ieattr))
5311 return -EINVAL;
581a8b0f
JC		 5312 setup->ie = nla_data(ieattr);
5313 setup->ie_len = nla_len(ieattr);
c80d545d 5314 }
bb2798d4
TP		 5315 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5316 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5317 return -EINVAL;
5318 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5319 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5320 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5321 if (setup->is_secure)
5322 setup->user_mpm = true;
c80d545d 5323
6e16d90b
CT		 5324 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5325 if (!setup->user_mpm)
5326 return -EINVAL;
5327 setup->auth_id =
5328 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5329 }
5330
c80d545d
JC		 5331 return 0;
5332}
5333
24bdd9f4 5334static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5335 struct genl_info *info)
bd90fdcc
JB		 5336{
5337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5338 struct net_device *dev = info->user_ptr[1];
29cbe68c 5339 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5340 struct mesh_config cfg;
5341 u32 mask;
5342 int err;
5343
29cbe68c
JB		 5344 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5345 return -EOPNOTSUPP;
5346
24bdd9f4 5347 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5348 return -EOPNOTSUPP;
5349
24bdd9f4 5350 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5351 if (err)
5352 return err;
5353
29cbe68c
JB		 5354 wdev_lock(wdev);
5355 if (!wdev->mesh_id_len)
5356 err = -ENOLINK;
5357
5358 if (!err)
e35e4d28 5359 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5360
5361 wdev_unlock(wdev);
5362
5363 return err;
93da9cc1 5364}
5365
ad30ca2c
AN		 5366static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5367 struct sk_buff *msg)
f130347c 5368{
f130347c
LR		 5369 struct nlattr *nl_reg_rules;
5370 unsigned int i;
f130347c 5371
458f4f9e
JB		 5372 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5373 (regdom->dfs_region &&
5374 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5375 goto nla_put_failure;
458f4f9e 5376
f130347c
LR		 5377 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5378 if (!nl_reg_rules)
ad30ca2c 5379 goto nla_put_failure;
f130347c 5380
458f4f9e 5381 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5382 struct nlattr *nl_reg_rule;
5383 const struct ieee80211_reg_rule *reg_rule;
5384 const struct ieee80211_freq_range *freq_range;
5385 const struct ieee80211_power_rule *power_rule;
97524820 5386 unsigned int max_bandwidth_khz;
f130347c 5387
458f4f9e 5388 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5389 freq_range = &reg_rule->freq_range;
5390 power_rule = &reg_rule->power_rule;
5391
5392 nl_reg_rule = nla_nest_start(msg, i);
5393 if (!nl_reg_rule)
ad30ca2c 5394 goto nla_put_failure;
f130347c 5395
97524820
JD		 5396 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5397 if (!max_bandwidth_khz)
5398 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5399 reg_rule);
5400
9360ffd1
DM		 5401 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5402 reg_rule->flags) ||
5403 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5404 freq_range->start_freq_khz) ||
5405 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5406 freq_range->end_freq_khz) ||
5407 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5408 max_bandwidth_khz) ||
9360ffd1
DM		 5409 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5410 power_rule->max_antenna_gain) ||
5411 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5412 power_rule->max_eirp) ||
5413 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5414 reg_rule->dfs_cac_ms))
ad30ca2c 5415 goto nla_put_failure;
f130347c
LR		 5416
5417 nla_nest_end(msg, nl_reg_rule);
5418 }
5419
5420 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5421 return 0;
5422
5423nla_put_failure:
5424 return -EMSGSIZE;
5425}
5426
5427static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5428{
5429 const struct ieee80211_regdomain *regdom = NULL;
5430 struct cfg80211_registered_device *rdev;
5431 struct wiphy *wiphy = NULL;
5432 struct sk_buff *msg;
5433 void *hdr;
5434
5435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5436 if (!msg)
5437 return -ENOBUFS;
5438
5439 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5440 NL80211_CMD_GET_REG);
5441 if (!hdr)
5442 goto put_failure;
5443
5444 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5445 bool self_managed;
5446
ad30ca2c
AN		 5447 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5448 if (IS_ERR(rdev)) {
5449 nlmsg_free(msg);
5450 return PTR_ERR(rdev);
5451 }
5452
5453 wiphy = &rdev->wiphy;
1bdd716c
AN		 5454 self_managed = wiphy->regulatory_flags &
5455 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5456 regdom = get_wiphy_regdom(wiphy);
5457
1bdd716c
AN		 5458 /* a self-managed-reg device must have a private regdom */
5459 if (WARN_ON(!regdom && self_managed)) {
5460 nlmsg_free(msg);
5461 return -EINVAL;
5462 }
5463
ad30ca2c
AN		 5464 if (regdom &&
5465 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5466 goto nla_put_failure;
5467 }
5468
5469 if (!wiphy && reg_last_request_cell_base() &&
5470 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5471 NL80211_USER_REG_HINT_CELL_BASE))
5472 goto nla_put_failure;
5473
5474 rcu_read_lock();
5475
5476 if (!regdom)
5477 regdom = rcu_dereference(cfg80211_regdomain);
5478
5479 if (nl80211_put_regdom(regdom, msg))
5480 goto nla_put_failure_rcu;
5481
5482 rcu_read_unlock();
f130347c
LR		 5483
5484 genlmsg_end(msg, hdr);
5fe231e8 5485 return genlmsg_reply(msg, info);
f130347c 5486
458f4f9e
JB		 5487nla_put_failure_rcu:
5488 rcu_read_unlock();
f130347c
LR		 5489nla_put_failure:
5490 genlmsg_cancel(msg, hdr);
efe1cf0c 5491put_failure:
d080e275 5492 nlmsg_free(msg);
5fe231e8 5493 return -EMSGSIZE;
f130347c
LR		 5494}
5495
ad30ca2c
AN		 5496static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5497 u32 seq, int flags, struct wiphy *wiphy,
5498 const struct ieee80211_regdomain *regdom)
5499{
5500 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5501 NL80211_CMD_GET_REG);
5502
5503 if (!hdr)
5504 return -1;
5505
5506 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5507
5508 if (nl80211_put_regdom(regdom, msg))
5509 goto nla_put_failure;
5510
5511 if (!wiphy && reg_last_request_cell_base() &&
5512 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5513 NL80211_USER_REG_HINT_CELL_BASE))
5514 goto nla_put_failure;
5515
5516 if (wiphy &&
5517 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5518 goto nla_put_failure;
5519
1bdd716c
AN		 5520 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5521 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5522 goto nla_put_failure;
5523
ad30ca2c
AN		 5524 return genlmsg_end(msg, hdr);
5525
5526nla_put_failure:
5527 genlmsg_cancel(msg, hdr);
5528 return -EMSGSIZE;
5529}
5530
5531static int nl80211_get_reg_dump(struct sk_buff *skb,
5532 struct netlink_callback *cb)
5533{
5534 const struct ieee80211_regdomain *regdom = NULL;
5535 struct cfg80211_registered_device *rdev;
5536 int err, reg_idx, start = cb->args[2];
5537
5538 rtnl_lock();
5539
5540 if (cfg80211_regdomain && start == 0) {
5541 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5542 NLM_F_MULTI, NULL,
5543 rtnl_dereference(cfg80211_regdomain));
5544 if (err < 0)
5545 goto out_err;
5546 }
5547
5548 /* the global regdom is idx 0 */
5549 reg_idx = 1;
5550 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5551 regdom = get_wiphy_regdom(&rdev->wiphy);
5552 if (!regdom)
5553 continue;
5554
5555 if (++reg_idx <= start)
5556 continue;
5557
5558 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5559 NLM_F_MULTI, &rdev->wiphy, regdom);
5560 if (err < 0) {
5561 reg_idx--;
5562 break;
5563 }
5564 }
5565
5566 cb->args[2] = reg_idx;
5567 err = skb->len;
5568out_err:
5569 rtnl_unlock();
5570 return err;
5571}
5572
b2e1b302
LR		 5573static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5574{
5575 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5576 struct nlattr *nl_reg_rule;
ea372c54
JB		 5577 char *alpha2;
5578 int rem_reg_rules, r;
b2e1b302 5579 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5580 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5581 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5582
5583 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5584 return -EINVAL;
5585
5586 if (!info->attrs[NL80211_ATTR_REG_RULES])
5587 return -EINVAL;
5588
5589 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5590
8b60b078
LR		 5591 if (info->attrs[NL80211_ATTR_DFS_REGION])
5592 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5593
b2e1b302 5594 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5595 rem_reg_rules) {
b2e1b302
LR		 5596 num_rules++;
5597 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5598 return -EINVAL;
b2e1b302
LR		 5599 }
5600
e438768f
LR		 5601 if (!reg_is_valid_request(alpha2))
5602 return -EINVAL;
5603
b2e1b302 5604 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5605 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5606
5607 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5608 if (!rd)
5609 return -ENOMEM;
b2e1b302
LR		 5610
5611 rd->n_reg_rules = num_rules;
5612 rd->alpha2[0] = alpha2[0];
5613 rd->alpha2[1] = alpha2[1];
5614
8b60b078
LR		 5615 /*
5616 * Disable DFS master mode if the DFS region was
5617 * not supported or known on this kernel.
5618 */
5619 if (reg_supported_dfs_region(dfs_region))
5620 rd->dfs_region = dfs_region;
5621
b2e1b302 5622 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5623 rem_reg_rules) {
ae811e21
JB		 5624 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5625 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5626 reg_rule_policy);
5627 if (r)
5628 goto bad_reg;
b2e1b302
LR		 5629 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5630 if (r)
5631 goto bad_reg;
5632
5633 rule_idx++;
5634
d0e18f83
LR		 5635 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5636 r = -EINVAL;
b2e1b302 5637 goto bad_reg;
d0e18f83 5638 }
b2e1b302
LR		 5639 }
5640
b2e1b302 5641 r = set_regdom(rd);
6913b49a 5642 /* set_regdom took ownership */
1a919318 5643 rd = NULL;
b2e1b302 5644
d2372b31 5645 bad_reg:
b2e1b302 5646 kfree(rd);
d0e18f83 5647 return r;
b2e1b302
LR		 5648}
5649
83f5e2cf
JB		 5650static int validate_scan_freqs(struct nlattr *freqs)
5651{
5652 struct nlattr *attr1, *attr2;
5653 int n_channels = 0, tmp1, tmp2;
5654
5655 nla_for_each_nested(attr1, freqs, tmp1) {
5656 n_channels++;
5657 /*
5658 * Some hardware has a limited channel list for
5659 * scanning, and it is pretty much nonsensical
5660 * to scan for a channel twice, so disallow that
5661 * and don't require drivers to check that the
5662 * channel list they get isn't longer than what
5663 * they can scan, as long as they can scan all
5664 * the channels they registered at once.
5665 */
5666 nla_for_each_nested(attr2, freqs, tmp2)
5667 if (attr1 != attr2 &&
5668 nla_get_u32(attr1) == nla_get_u32(attr2))
5669 return 0;
5670 }
5671
5672 return n_channels;
5673}
5674
ad2b26ab
JB		 5675static int nl80211_parse_random_mac(struct nlattr **attrs,
5676 u8 *mac_addr, u8 *mac_addr_mask)
5677{
5678 int i;
5679
5680 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5681 memset(mac_addr, 0, ETH_ALEN);
5682 memset(mac_addr_mask, 0, ETH_ALEN);
5683 mac_addr[0] = 0x2;
5684 mac_addr_mask[0] = 0x3;
5685
5686 return 0;
5687 }
5688
5689 /* need both or none */
5690 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5691 return -EINVAL;
5692
5693 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5694 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5695
5696 /* don't allow or configure an mcast address */
5697 if (!is_multicast_ether_addr(mac_addr_mask) ||
5698 is_multicast_ether_addr(mac_addr))
5699 return -EINVAL;
5700
5701 /*
5702 * allow users to pass a MAC address that has bits set outside
5703 * of the mask, but don't bother drivers with having to deal
5704 * with such bits
5705 */
5706 for (i = 0; i < ETH_ALEN; i++)
5707 mac_addr[i] &= mac_addr_mask[i];
5708
5709 return 0;
5710}
5711
2a519311
JB		 5712static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5713{
4c476991 5714 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5715 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5716 struct cfg80211_scan_request *request;
2a519311
JB		 5717 struct nlattr *attr;
5718 struct wiphy *wiphy;
83f5e2cf 5719 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5720 size_t ie_len;
2a519311 5721
f4a11bb0
JB		 5722 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5723 return -EINVAL;
5724
79c97e97 5725 wiphy = &rdev->wiphy;
2a519311 5726
4c476991
JB		 5727 if (!rdev->ops->scan)
5728 return -EOPNOTSUPP;
2a519311 5729
f9d15d16 5730 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5731 err = -EBUSY;
5732 goto unlock;
5733 }
2a519311
JB		 5734
5735 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5736 n_channels = validate_scan_freqs(
5737 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5738 if (!n_channels) {
5739 err = -EINVAL;
5740 goto unlock;
5741 }
2a519311 5742 } else {
bdfbec2d 5743 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5744 }
5745
5746 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5747 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5748 n_ssids++;
5749
f9f47529
JB		 5750 if (n_ssids > wiphy->max_scan_ssids) {
5751 err = -EINVAL;
5752 goto unlock;
5753 }
2a519311 5754
70692ad2
JM		 5755 if (info->attrs[NL80211_ATTR_IE])
5756 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5757 else
5758 ie_len = 0;
5759
f9f47529
JB		 5760 if (ie_len > wiphy->max_scan_ie_len) {
5761 err = -EINVAL;
5762 goto unlock;
5763 }
18a83659 5764
2a519311 5765 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5766 + sizeof(*request->ssids) * n_ssids
5767 + sizeof(*request->channels) * n_channels
70692ad2 5768 + ie_len, GFP_KERNEL);
f9f47529
JB		 5769 if (!request) {
5770 err = -ENOMEM;
5771 goto unlock;
5772 }
2a519311 5773
2a519311 5774 if (n_ssids)
5ba63533 5775 request->ssids = (void *)&request->channels[n_channels];
2a519311 5776 request->n_ssids = n_ssids;
70692ad2
JM		 5777 if (ie_len) {
5778 if (request->ssids)
5779 request->ie = (void *)(request->ssids + n_ssids);
5780 else
5781 request->ie = (void *)(request->channels + n_channels);
5782 }
2a519311 5783
584991dc 5784 i = 0;
2a519311
JB		 5785 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5786 /* user specified, bail out if channel not found */
2a519311 5787 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5788 struct ieee80211_channel *chan;
5789
5790 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5791
5792 if (!chan) {
2a519311
JB		 5793 err = -EINVAL;
5794 goto out_free;
5795 }
584991dc
JB		 5796
5797 /* ignore disabled channels */
5798 if (chan->flags & IEEE80211_CHAN_DISABLED)
5799 continue;
5800
5801 request->channels[i] = chan;
2a519311
JB		 5802 i++;
5803 }
5804 } else {
34850ab2
JB		 5805 enum ieee80211_band band;
5806
2a519311 5807 /* all channels */
2a519311
JB		 5808 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5809 int j;
5810 if (!wiphy->bands[band])
5811 continue;
5812 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5813 struct ieee80211_channel *chan;
5814
5815 chan = &wiphy->bands[band]->channels[j];
5816
5817 if (chan->flags & IEEE80211_CHAN_DISABLED)
5818 continue;
5819
5820 request->channels[i] = chan;
2a519311
JB		 5821 i++;
5822 }
5823 }
5824 }
5825
584991dc
JB		 5826 if (!i) {
5827 err = -EINVAL;
5828 goto out_free;
5829 }
5830
5831 request->n_channels = i;
5832
2a519311
JB		 5833 i = 0;
5834 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5835 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5836 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5837 err = -EINVAL;
5838 goto out_free;
5839 }
57a27e1d 5840 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5841 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5842 i++;
5843 }
5844 }
5845
70692ad2
JM		 5846 if (info->attrs[NL80211_ATTR_IE]) {
5847 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5848 memcpy((void *)request->ie,
5849 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5850 request->ie_len);
5851 }
5852
34850ab2 5853 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5854 if (wiphy->bands[i])
5855 request->rates[i] =
5856 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5857
5858 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5859 nla_for_each_nested(attr,
5860 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5861 tmp) {
5862 enum ieee80211_band band = nla_type(attr);
5863
84404623 5864 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5865 err = -EINVAL;
5866 goto out_free;
5867 }
1b09cd82
FF		 5868
5869 if (!wiphy->bands[band])
5870 continue;
5871
34850ab2
JB		 5872 err = ieee80211_get_ratemask(wiphy->bands[band],
5873 nla_data(attr),
5874 nla_len(attr),
5875 &request->rates[band]);
5876 if (err)
5877 goto out_free;
5878 }
5879 }
5880
46856bbf 5881 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5882 request->flags = nla_get_u32(
5883 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5884 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5885 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5886 err = -EOPNOTSUPP;
5887 goto out_free;
5888 }
ad2b26ab
JB		 5889
5890 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5891 if (!(wiphy->features &
5892 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5893 err = -EOPNOTSUPP;
5894 goto out_free;
5895 }
5896
5897 if (wdev->current_bss) {
5898 err = -EOPNOTSUPP;
5899 goto out_free;
5900 }
5901
5902 err = nl80211_parse_random_mac(info->attrs,
5903 request->mac_addr,
5904 request->mac_addr_mask);
5905 if (err)
5906 goto out_free;
5907 }
46856bbf 5908 }
ed473771 5909
e9f935e3
RM		 5910 request->no_cck =
5911 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5912
fd014284 5913 request->wdev = wdev;
79c97e97 5914 request->wiphy = &rdev->wiphy;
15d6030b 5915 request->scan_start = jiffies;
2a519311 5916
79c97e97 5917 rdev->scan_req = request;
e35e4d28 5918 err = rdev_scan(rdev, request);
2a519311 5919
463d0183 5920 if (!err) {
fd014284
JB		 5921 nl80211_send_scan_start(rdev, wdev);
5922 if (wdev->netdev)
5923 dev_hold(wdev->netdev);
4c476991 5924 } else {
2a519311 5925 out_free:
79c97e97 5926 rdev->scan_req = NULL;
2a519311
JB		 5927 kfree(request);
5928 }
3b85875a 5929
f9f47529 5930 unlock:
2a519311
JB		 5931 return err;
5932}
5933
256da02d 5934static struct cfg80211_sched_scan_request *
ad2b26ab 5935nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 5936 struct nlattr **attrs)
807f8a8c
LC		 5937{
5938 struct cfg80211_sched_scan_request *request;
807f8a8c 5939 struct nlattr *attr;
a1f1c21c 5940 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5941 u32 interval;
807f8a8c
LC		 5942 enum ieee80211_band band;
5943 size_t ie_len;
a1f1c21c 5944 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5945 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5946
256da02d
LC		 5947 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5948 return ERR_PTR(-EINVAL);
807f8a8c 5949
256da02d
LC		 5950 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5951 return ERR_PTR(-EINVAL);
bbe6ad6d 5952
256da02d 5953 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5954 if (interval == 0)
256da02d 5955 return ERR_PTR(-EINVAL);
807f8a8c 5956
256da02d 5957 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5958 n_channels = validate_scan_freqs(
256da02d 5959 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5960 if (!n_channels)
256da02d 5961 return ERR_PTR(-EINVAL);
807f8a8c 5962 } else {
bdfbec2d 5963 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5964 }
5965
256da02d
LC		 5966 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5967 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5968 tmp)
5969 n_ssids++;
5970
93b6aa69 5971 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5972 return ERR_PTR(-EINVAL);
807f8a8c 5973
ea73cbce
JB		 5974 /*
5975 * First, count the number of 'real' matchsets. Due to an issue with
5976 * the old implementation, matchsets containing only the RSSI attribute
5977 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5978 * RSSI for all matchsets, rather than their own matchset for reporting
5979 * all APs with a strong RSSI. This is needed to be compatible with
5980 * older userspace that treated a matchset with only the RSSI as the
5981 * global RSSI for all other matchsets - if there are other matchsets.
5982 */
256da02d 5983 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5984 nla_for_each_nested(attr,
256da02d 5985 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5986 tmp) {
5987 struct nlattr *rssi;
5988
5989 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5990 nla_data(attr), nla_len(attr),
5991 nl80211_match_policy);
5992 if (err)
256da02d 5993 return ERR_PTR(err);
ea73cbce
JB		 5994 /* add other standalone attributes here */
5995 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5996 n_match_sets++;
5997 continue;
5998 }
5999 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6000 if (rssi)
6001 default_match_rssi = nla_get_s32(rssi);
6002 }
6003 }
6004
6005 /* However, if there's no other matchset, add the RSSI one */
6006 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6007 n_match_sets = 1;
a1f1c21c
LC		 6008
6009 if (n_match_sets > wiphy->max_match_sets)
256da02d 6010 return ERR_PTR(-EINVAL);
a1f1c21c 6011
256da02d
LC		 6012 if (attrs[NL80211_ATTR_IE])
6013 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6014 else
6015 ie_len = 0;
6016
5a865bad 6017 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6018 return ERR_PTR(-EINVAL);
c10841ca 6019
807f8a8c 6020 request = kzalloc(sizeof(*request)
a2cd43c5 6021 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6022 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 6023 + sizeof(*request->channels) * n_channels
807f8a8c 6024 + ie_len, GFP_KERNEL);
256da02d
LC		 6025 if (!request)
6026 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6027
6028 if (n_ssids)
6029 request->ssids = (void *)&request->channels[n_channels];
6030 request->n_ssids = n_ssids;
6031 if (ie_len) {
6032 if (request->ssids)
6033 request->ie = (void *)(request->ssids + n_ssids);
6034 else
6035 request->ie = (void *)(request->channels + n_channels);
6036 }
6037
a1f1c21c
LC		 6038 if (n_match_sets) {
6039 if (request->ie)
6040 request->match_sets = (void *)(request->ie + ie_len);
6041 else if (request->ssids)
6042 request->match_sets =
6043 (void *)(request->ssids + n_ssids);
6044 else
6045 request->match_sets =
6046 (void *)(request->channels + n_channels);
6047 }
6048 request->n_match_sets = n_match_sets;
6049
807f8a8c 6050 i = 0;
256da02d 6051 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6052 /* user specified, bail out if channel not found */
6053 nla_for_each_nested(attr,
256da02d 6054 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6055 tmp) {
6056 struct ieee80211_channel *chan;
6057
6058 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6059
6060 if (!chan) {
6061 err = -EINVAL;
6062 goto out_free;
6063 }
6064
6065 /* ignore disabled channels */
6066 if (chan->flags & IEEE80211_CHAN_DISABLED)
6067 continue;
6068
6069 request->channels[i] = chan;
6070 i++;
6071 }
6072 } else {
6073 /* all channels */
6074 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6075 int j;
6076 if (!wiphy->bands[band])
6077 continue;
6078 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6079 struct ieee80211_channel *chan;
6080
6081 chan = &wiphy->bands[band]->channels[j];
6082
6083 if (chan->flags & IEEE80211_CHAN_DISABLED)
6084 continue;
6085
6086 request->channels[i] = chan;
6087 i++;
6088 }
6089 }
6090 }
6091
6092 if (!i) {
6093 err = -EINVAL;
6094 goto out_free;
6095 }
6096
6097 request->n_channels = i;
6098
6099 i = 0;
256da02d
LC		 6100 if (attrs[NL80211_ATTR_SCAN_SSIDS]) {
6101 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6102 tmp) {
57a27e1d 6103 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6104 err = -EINVAL;
6105 goto out_free;
6106 }
57a27e1d 6107 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6108 memcpy(request->ssids[i].ssid, nla_data(attr),
6109 nla_len(attr));
807f8a8c
LC		 6110 i++;
6111 }
6112 }
6113
a1f1c21c 6114 i = 0;
256da02d 6115 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6116 nla_for_each_nested(attr,
256da02d 6117 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6118 tmp) {
88e920b4 6119 struct nlattr *ssid, *rssi;
a1f1c21c 6120
ae811e21
JB		 6121 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6122 nla_data(attr), nla_len(attr),
6123 nl80211_match_policy);
6124 if (err)
6125 goto out_free;
4a4ab0d7 6126 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6127 if (ssid) {
ea73cbce
JB		 6128 if (WARN_ON(i >= n_match_sets)) {
6129 /* this indicates a programming error,
6130 * the loop above should have verified
6131 * things properly
6132 */
6133 err = -EINVAL;
6134 goto out_free;
6135 }
6136
a1f1c21c
LC		 6137 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6138 err = -EINVAL;
6139 goto out_free;
6140 }
6141 memcpy(request->match_sets[i].ssid.ssid,
6142 nla_data(ssid), nla_len(ssid));
6143 request->match_sets[i].ssid.ssid_len =
6144 nla_len(ssid);
ea73cbce
JB		 6145 /* special attribute - old implemenation w/a */
6146 request->match_sets[i].rssi_thold =
6147 default_match_rssi;
6148 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6149 if (rssi)
6150 request->match_sets[i].rssi_thold =
6151 nla_get_s32(rssi);
a1f1c21c
LC		 6152 }
6153 i++;
6154 }
ea73cbce
JB		 6155
6156 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6157 if (i == 0 && n_match_sets)
ea73cbce
JB		 6158 request->match_sets[0].rssi_thold = default_match_rssi;
6159
6160 request->min_rssi_thold = INT_MAX;
6161 for (i = 0; i < n_match_sets; i++)
6162 request->min_rssi_thold =
6163 min(request->match_sets[i].rssi_thold,
6164 request->min_rssi_thold);
6165 } else {
6166 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6167 }
6168
9900e484
JB		 6169 if (ie_len) {
6170 request->ie_len = ie_len;
807f8a8c 6171 memcpy((void *)request->ie,
256da02d 6172 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6173 request->ie_len);
6174 }
6175
256da02d 6176 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6177 request->flags = nla_get_u32(
256da02d 6178 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6179 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6180 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6181 err = -EOPNOTSUPP;
6182 goto out_free;
6183 }
ad2b26ab
JB		 6184
6185 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6186 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6187
6188 if (!wdev) /* must be net-detect */
6189 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6190
6191 if (!(wiphy->features & flg)) {
6192 err = -EOPNOTSUPP;
6193 goto out_free;
6194 }
6195
6196 if (wdev && wdev->current_bss) {
6197 err = -EOPNOTSUPP;
6198 goto out_free;
6199 }
6200
6201 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6202 request->mac_addr_mask);
6203 if (err)
6204 goto out_free;
6205 }
46856bbf 6206 }
ed473771 6207
bbe6ad6d 6208 request->interval = interval;
15d6030b 6209 request->scan_start = jiffies;
807f8a8c 6210
256da02d 6211 return request;
807f8a8c
LC		 6212
6213out_free:
6214 kfree(request);
256da02d
LC		 6215 return ERR_PTR(err);
6216}
6217
6218static int nl80211_start_sched_scan(struct sk_buff *skb,
6219 struct genl_info *info)
6220{
6221 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6222 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6223 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6224 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6225 int err;
6226
6227 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6228 !rdev->ops->sched_scan_start)
6229 return -EOPNOTSUPP;
6230
6231 if (rdev->sched_scan_req)
6232 return -EINPROGRESS;
6233
31a60ed1
JR		 6234 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6235 info->attrs);
6236
6237 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6238 if (err)
6239 goto out_err;
6240
31a60ed1 6241 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6242 if (err)
6243 goto out_free;
6244
31a60ed1
JR		 6245 sched_scan_req->dev = dev;
6246 sched_scan_req->wiphy = &rdev->wiphy;
6247
93a1e86c
JR		 6248 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6249 sched_scan_req->owner_nlportid = info->snd_portid;
6250
31a60ed1 6251 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6252
6253 nl80211_send_sched_scan(rdev, dev,
6254 NL80211_CMD_START_SCHED_SCAN);
6255 return 0;
6256
6257out_free:
31a60ed1 6258 kfree(sched_scan_req);
256da02d 6259out_err:
807f8a8c
LC		 6260 return err;
6261}
6262
6263static int nl80211_stop_sched_scan(struct sk_buff *skb,
6264 struct genl_info *info)
6265{
6266 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6267
6268 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6269 !rdev->ops->sched_scan_stop)
6270 return -EOPNOTSUPP;
6271
5fe231e8 6272 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6273}
6274
04f39047
SW		 6275static int nl80211_start_radar_detection(struct sk_buff *skb,
6276 struct genl_info *info)
6277{
6278 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6279 struct net_device *dev = info->user_ptr[1];
6280 struct wireless_dev *wdev = dev->ieee80211_ptr;
6281 struct cfg80211_chan_def chandef;
55f7435c 6282 enum nl80211_dfs_regions dfs_region;
31559f35 6283 unsigned int cac_time_ms;
04f39047
SW		 6284 int err;
6285
55f7435c
LR		 6286 dfs_region = reg_get_dfs_region(wdev->wiphy);
6287 if (dfs_region == NL80211_DFS_UNSET)
6288 return -EINVAL;
6289
04f39047
SW		 6290 err = nl80211_parse_chandef(rdev, info, &chandef);
6291 if (err)
6292 return err;
6293
ff311bc1
SW		 6294 if (netif_carrier_ok(dev))
6295 return -EBUSY;
6296
04f39047
SW		 6297 if (wdev->cac_started)
6298 return -EBUSY;
6299
2beb6dab 6300 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6301 wdev->iftype);
04f39047
SW		 6302 if (err < 0)
6303 return err;
6304
6305 if (err == 0)
6306 return -EINVAL;
6307
fe7c3a1f 6308 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6309 return -EINVAL;
6310
6311 if (!rdev->ops->start_radar_detection)
6312 return -EOPNOTSUPP;
6313
31559f35
JD		 6314 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6315 if (WARN_ON(!cac_time_ms))
6316 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6317
6318 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6319 cac_time_ms);
04f39047 6320 if (!err) {
9e0e2961 6321 wdev->chandef = chandef;
04f39047
SW		 6322 wdev->cac_started = true;
6323 wdev->cac_start_time = jiffies;
31559f35 6324 wdev->cac_time_ms = cac_time_ms;
04f39047 6325 }
04f39047
SW		 6326 return err;
6327}
6328
16ef1fe2
SW		 6329static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6330{
6331 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6332 struct net_device *dev = info->user_ptr[1];
6333 struct wireless_dev *wdev = dev->ieee80211_ptr;
6334 struct cfg80211_csa_settings params;
6335 /* csa_attrs is defined static to avoid waste of stack size - this
6336 * function is called under RTNL lock, so this should not be a problem.
6337 */
6338 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6339 int err;
ee4bc9e7 6340 bool need_new_beacon = false;
9a774c78 6341 int len, i;
252e07ca 6342 u32 cs_count;
16ef1fe2
SW		 6343
6344 if (!rdev->ops->channel_switch ||
6345 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6346 return -EOPNOTSUPP;
6347
ee4bc9e7
SW		 6348 switch (dev->ieee80211_ptr->iftype) {
6349 case NL80211_IFTYPE_AP:
6350 case NL80211_IFTYPE_P2P_GO:
6351 need_new_beacon = true;
6352
6353 /* useless if AP is not running */
6354 if (!wdev->beacon_interval)
1ff79dfa 6355 return -ENOTCONN;
ee4bc9e7
SW		 6356 break;
6357 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6358 if (!wdev->ssid_len)
6359 return -ENOTCONN;
6360 break;
c6da674a 6361 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6362 if (!wdev->mesh_id_len)
6363 return -ENOTCONN;
ee4bc9e7
SW		 6364 break;
6365 default:
16ef1fe2 6366 return -EOPNOTSUPP;
ee4bc9e7 6367 }
16ef1fe2
SW		 6368
6369 memset(&params, 0, sizeof(params));
6370
6371 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6372 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6373 return -EINVAL;
6374
6375 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6376 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6377 return -EINVAL;
6378
252e07ca
LC		 6379 /* Even though the attribute is u32, the specification says
6380 * u8, so let's make sure we don't overflow.
6381 */
6382 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6383 if (cs_count > 255)
6384 return -EINVAL;
6385
6386 params.count = cs_count;
16ef1fe2 6387
ee4bc9e7
SW		 6388 if (!need_new_beacon)
6389 goto skip_beacons;
6390
16ef1fe2
SW		 6391 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6392 if (err)
6393 return err;
6394
6395 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6396 info->attrs[NL80211_ATTR_CSA_IES],
6397 nl80211_policy);
6398 if (err)
6399 return err;
6400
6401 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6402 if (err)
6403 return err;
6404
6405 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6406 return -EINVAL;
6407
9a774c78
AO		 6408 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6409 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6410 return -EINVAL;
6411
9a774c78
AO		 6412 params.n_counter_offsets_beacon = len / sizeof(u16);
6413 if (rdev->wiphy.max_num_csa_counters &&
6414 (params.n_counter_offsets_beacon >
6415 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6416 return -EINVAL;
6417
9a774c78
AO		 6418 params.counter_offsets_beacon =
6419 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6420
6421 /* sanity checks - counters should fit and be the same */
6422 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6423 u16 offset = params.counter_offsets_beacon[i];
6424
6425 if (offset >= params.beacon_csa.tail_len)
6426 return -EINVAL;
6427
6428 if (params.beacon_csa.tail[offset] != params.count)
6429 return -EINVAL;
6430 }
6431
16ef1fe2 6432 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6433 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6434 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6435 return -EINVAL;
6436
9a774c78
AO		 6437 params.n_counter_offsets_presp = len / sizeof(u16);
6438 if (rdev->wiphy.max_num_csa_counters &&
6439 (params.n_counter_offsets_beacon >
6440 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6441 return -EINVAL;
9a774c78
AO		 6442
6443 params.counter_offsets_presp =
6444 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6445
6446 /* sanity checks - counters should fit and be the same */
6447 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6448 u16 offset = params.counter_offsets_presp[i];
6449
6450 if (offset >= params.beacon_csa.probe_resp_len)
6451 return -EINVAL;
6452
6453 if (params.beacon_csa.probe_resp[offset] !=
6454 params.count)
6455 return -EINVAL;
6456 }
16ef1fe2
SW		 6457 }
6458
ee4bc9e7 6459skip_beacons:
16ef1fe2
SW		 6460 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6461 if (err)
6462 return err;
6463
174e0cd2
IP		 6464 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6465 wdev->iftype))
16ef1fe2
SW		 6466 return -EINVAL;
6467
2beb6dab
LC		 6468 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6469 &params.chandef,
6470 wdev->iftype);
6471 if (err < 0)
6472 return err;
6473
dcc6c2f5 6474 if (err > 0)
2beb6dab 6475 params.radar_required = true;
16ef1fe2 6476
16ef1fe2
SW		 6477 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6478 params.block_tx = true;
6479
c56589ed
SW		 6480 wdev_lock(wdev);
6481 err = rdev_channel_switch(rdev, dev, &params);
6482 wdev_unlock(wdev);
6483
6484 return err;
16ef1fe2
SW		 6485}
6486
9720bb3a
JB		 6487static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6488 u32 seq, int flags,
2a519311 6489 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6490 struct wireless_dev *wdev,
6491 struct cfg80211_internal_bss *intbss)
2a519311 6492{
48ab905d 6493 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6494 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6495 void *hdr;
6496 struct nlattr *bss;
48ab905d
JB		 6497
6498 ASSERT_WDEV_LOCK(wdev);
2a519311 6499
15e47304 6500 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6501 NL80211_CMD_NEW_SCAN_RESULTS);
6502 if (!hdr)
6503 return -1;
6504
9720bb3a
JB		 6505 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6506
97990a06
JB		 6507 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6508 goto nla_put_failure;
6509 if (wdev->netdev &&
9360ffd1
DM		 6510 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6511 goto nla_put_failure;
97990a06
JB		 6512 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6513 goto nla_put_failure;
2a519311
JB		 6514
6515 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6516 if (!bss)
6517 goto nla_put_failure;
9360ffd1 6518 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6519 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6520 goto nla_put_failure;
9caf0364
JB		 6521
6522 rcu_read_lock();
0e227084
JB		 6523 /* indicate whether we have probe response data or not */
6524 if (rcu_access_pointer(res->proberesp_ies) &&
6525 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6526 goto fail_unlock_rcu;
6527
6528 /* this pointer prefers to be pointed to probe response data
6529 * but is always valid
6530 */
9caf0364 6531 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6532 if (ies) {
6533 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6534 goto fail_unlock_rcu;
8cef2c9d
JB		 6535 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6536 ies->len, ies->data))
6537 goto fail_unlock_rcu;
9caf0364 6538 }
0e227084
JB		 6539
6540 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6541 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6542 if (ies && ies->from_beacon) {
6543 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6544 goto fail_unlock_rcu;
6545 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6546 ies->len, ies->data))
6547 goto fail_unlock_rcu;
9caf0364
JB		 6548 }
6549 rcu_read_unlock();
6550
9360ffd1
DM		 6551 if (res->beacon_interval &&
6552 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6553 goto nla_put_failure;
6554 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6555 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6556 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6557 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6558 jiffies_to_msecs(jiffies - intbss->ts)))
6559 goto nla_put_failure;
2a519311 6560
77965c97 6561 switch (rdev->wiphy.signal_type) {
2a519311 6562 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6563 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6564 goto nla_put_failure;
2a519311
JB		 6565 break;
6566 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6567 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6568 goto nla_put_failure;
2a519311
JB		 6569 break;
6570 default:
6571 break;
6572 }
6573
48ab905d 6574 switch (wdev->iftype) {
074ac8df 6575 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6576 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6577 if (intbss == wdev->current_bss &&
6578 nla_put_u32(msg, NL80211_BSS_STATUS,
6579 NL80211_BSS_STATUS_ASSOCIATED))
6580 goto nla_put_failure;
48ab905d
JB		 6581 break;
6582 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6583 if (intbss == wdev->current_bss &&
6584 nla_put_u32(msg, NL80211_BSS_STATUS,
6585 NL80211_BSS_STATUS_IBSS_JOINED))
6586 goto nla_put_failure;
48ab905d
JB		 6587 break;
6588 default:
6589 break;
6590 }
6591
2a519311
JB		 6592 nla_nest_end(msg, bss);
6593
6594 return genlmsg_end(msg, hdr);
6595
8cef2c9d
JB		 6596 fail_unlock_rcu:
6597 rcu_read_unlock();
2a519311
JB		 6598 nla_put_failure:
6599 genlmsg_cancel(msg, hdr);
6600 return -EMSGSIZE;
6601}
6602
97990a06 6603static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6604{
48ab905d 6605 struct cfg80211_registered_device *rdev;
2a519311 6606 struct cfg80211_internal_bss *scan;
48ab905d 6607 struct wireless_dev *wdev;
97990a06 6608 int start = cb->args[2], idx = 0;
2a519311
JB		 6609 int err;
6610
97990a06 6611 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6612 if (err)
6613 return err;
2a519311 6614
48ab905d
JB		 6615 wdev_lock(wdev);
6616 spin_lock_bh(&rdev->bss_lock);
6617 cfg80211_bss_expire(rdev);
6618
9720bb3a
JB		 6619 cb->seq = rdev->bss_generation;
6620
48ab905d 6621 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6622 if (++idx <= start)
6623 continue;
9720bb3a 6624 if (nl80211_send_bss(skb, cb,
2a519311 6625 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6626 rdev, wdev, scan) < 0) {
2a519311 6627 idx--;
67748893 6628 break;
2a519311
JB		 6629 }
6630 }
6631
48ab905d
JB		 6632 spin_unlock_bh(&rdev->bss_lock);
6633 wdev_unlock(wdev);
2a519311 6634
97990a06
JB		 6635 cb->args[2] = idx;
6636 nl80211_finish_wdev_dump(rdev);
2a519311 6637
67748893 6638 return skb->len;
2a519311
JB		 6639}
6640
15e47304 6641static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 6642 int flags, struct net_device *dev,
6643 bool allow_radio_stats,
6644 struct survey_info *survey)
61fa713c
HS		 6645{
6646 void *hdr;
6647 struct nlattr *infoattr;
6648
11f78ac3
JB		 6649 /* skip radio stats if userspace didn't request them */
6650 if (!survey->channel && !allow_radio_stats)
6651 return 0;
6652
15e47304 6653 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6654 NL80211_CMD_NEW_SURVEY_RESULTS);
6655 if (!hdr)
6656 return -ENOMEM;
6657
9360ffd1
DM		 6658 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6659 goto nla_put_failure;
61fa713c
HS		 6660
6661 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6662 if (!infoattr)
6663 goto nla_put_failure;
6664
11f78ac3
JB		 6665 if (survey->channel &&
6666 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 6667 survey->channel->center_freq))
6668 goto nla_put_failure;
6669
6670 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6671 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6672 goto nla_put_failure;
6673 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6674 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6675 goto nla_put_failure;
4ed20beb
JB		 6676 if ((survey->filled & SURVEY_INFO_TIME) &&
6677 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6678 survey->time))
9360ffd1 6679 goto nla_put_failure;
4ed20beb
JB		 6680 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6681 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6682 survey->time_busy))
9360ffd1 6683 goto nla_put_failure;
4ed20beb
JB		 6684 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6685 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6686 survey->time_ext_busy))
9360ffd1 6687 goto nla_put_failure;
4ed20beb
JB		 6688 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6689 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6690 survey->time_rx))
9360ffd1 6691 goto nla_put_failure;
4ed20beb
JB		 6692 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6693 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6694 survey->time_tx))
9360ffd1 6695 goto nla_put_failure;
052536ab
JB		 6696 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6697 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6698 survey->time_scan))
6699 goto nla_put_failure;
61fa713c
HS		 6700
6701 nla_nest_end(msg, infoattr);
6702
6703 return genlmsg_end(msg, hdr);
6704
6705 nla_put_failure:
6706 genlmsg_cancel(msg, hdr);
6707 return -EMSGSIZE;
6708}
6709
11f78ac3 6710static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 6711{
6712 struct survey_info survey;
1b8ec87a 6713 struct cfg80211_registered_device *rdev;
97990a06
JB		 6714 struct wireless_dev *wdev;
6715 int survey_idx = cb->args[2];
61fa713c 6716 int res;
11f78ac3 6717 bool radio_stats;
61fa713c 6718
1b8ec87a 6719 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6720 if (res)
6721 return res;
61fa713c 6722
11f78ac3
JB		 6723 /* prepare_wdev_dump parsed the attributes */
6724 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6725
97990a06
JB		 6726 if (!wdev->netdev) {
6727 res = -EINVAL;
6728 goto out_err;
6729 }
6730
1b8ec87a 6731 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6732 res = -EOPNOTSUPP;
6733 goto out_err;
6734 }
6735
6736 while (1) {
1b8ec87a 6737 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6738 if (res == -ENOENT)
6739 break;
6740 if (res)
6741 goto out_err;
6742
11f78ac3
JB		 6743 /* don't send disabled channels, but do send non-channel data */
6744 if (survey.channel &&
6745 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6746 survey_idx++;
6747 continue;
6748 }
6749
61fa713c 6750 if (nl80211_send_survey(skb,
15e47304 6751 NETLINK_CB(cb->skb).portid,
61fa713c 6752 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 6753 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 6754 goto out;
6755 survey_idx++;
6756 }
6757
6758 out:
97990a06 6759 cb->args[2] = survey_idx;
61fa713c
HS		 6760 res = skb->len;
6761 out_err:
1b8ec87a 6762 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6763 return res;
6764}
6765
b23aa676
SO		 6766static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6767{
6768 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6769 NL80211_WPA_VERSION_2));
6770}
6771
636a5d36
JM		 6772static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6773{
4c476991
JB		 6774 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6775 struct net_device *dev = info->user_ptr[1];
19957bb3 6776 struct ieee80211_channel *chan;
e39e5b5e
JM		 6777 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6778 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6779 enum nl80211_auth_type auth_type;
fffd0934 6780 struct key_parse key;
d5cdfacb 6781 bool local_state_change;
636a5d36 6782
f4a11bb0
JB		 6783 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6784 return -EINVAL;
6785
6786 if (!info->attrs[NL80211_ATTR_MAC])
6787 return -EINVAL;
6788
1778092e
JM		 6789 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6790 return -EINVAL;
6791
19957bb3
JB		 6792 if (!info->attrs[NL80211_ATTR_SSID])
6793 return -EINVAL;
6794
6795 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6796 return -EINVAL;
6797
fffd0934
JB		 6798 err = nl80211_parse_key(info, &key);
6799 if (err)
6800 return err;
6801
6802 if (key.idx >= 0) {
e31b8213
JB		 6803 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6804 return -EINVAL;
fffd0934
JB		 6805 if (!key.p.key || !key.p.key_len)
6806 return -EINVAL;
6807 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6808 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6809 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6810 key.p.key_len != WLAN_KEY_LEN_WEP104))
6811 return -EINVAL;
6812 if (key.idx > 4)
6813 return -EINVAL;
6814 } else {
6815 key.p.key_len = 0;
6816 key.p.key = NULL;
6817 }
6818
afea0b7a
JB		 6819 if (key.idx >= 0) {
6820 int i;
6821 bool ok = false;
6822 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6823 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6824 ok = true;
6825 break;
6826 }
6827 }
4c476991
JB		 6828 if (!ok)
6829 return -EINVAL;
afea0b7a
JB		 6830 }
6831
4c476991
JB		 6832 if (!rdev->ops->auth)
6833 return -EOPNOTSUPP;
636a5d36 6834
074ac8df 6835 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6836 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6837 return -EOPNOTSUPP;
eec60b03 6838
19957bb3 6839 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6840 chan = nl80211_get_valid_chan(&rdev->wiphy,
6841 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6842 if (!chan)
4c476991 6843 return -EINVAL;
636a5d36 6844
19957bb3
JB		 6845 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6846 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6847
6848 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6849 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6850 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6851 }
6852
19957bb3 6853 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6854 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6855 return -EINVAL;
636a5d36 6856
e39e5b5e
JM		 6857 if (auth_type == NL80211_AUTHTYPE_SAE &&
6858 !info->attrs[NL80211_ATTR_SAE_DATA])
6859 return -EINVAL;
6860
6861 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6862 if (auth_type != NL80211_AUTHTYPE_SAE)
6863 return -EINVAL;
6864 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6865 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6866 /* need to include at least Auth Transaction and Status Code */
6867 if (sae_data_len < 4)
6868 return -EINVAL;
6869 }
6870
d5cdfacb
JM		 6871 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6872
95de817b
JB		 6873 /*
6874 * Since we no longer track auth state, ignore
6875 * requests to only change local state.
6876 */
6877 if (local_state_change)
6878 return 0;
6879
91bf9b26
JB		 6880 wdev_lock(dev->ieee80211_ptr);
6881 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6882 ssid, ssid_len, ie, ie_len,
6883 key.p.key, key.p.key_len, key.idx,
6884 sae_data, sae_data_len);
6885 wdev_unlock(dev->ieee80211_ptr);
6886 return err;
636a5d36
JM		 6887}
6888
c0692b8f
JB		 6889static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6890 struct genl_info *info,
3dc27d25
JB		 6891 struct cfg80211_crypto_settings *settings,
6892 int cipher_limit)
b23aa676 6893{
c0b2bbd8
JB		 6894 memset(settings, 0, sizeof(*settings));
6895
b23aa676
SO		 6896 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6897
c0692b8f
JB		 6898 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6899 u16 proto;
6900 proto = nla_get_u16(
6901 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6902 settings->control_port_ethertype = cpu_to_be16(proto);
6903 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6904 proto != ETH_P_PAE)
6905 return -EINVAL;
6906 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6907 settings->control_port_no_encrypt = true;
6908 } else
6909 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6910
b23aa676
SO		 6911 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6912 void *data;
6913 int len, i;
6914
6915 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6916 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6917 settings->n_ciphers_pairwise = len / sizeof(u32);
6918
6919 if (len % sizeof(u32))
6920 return -EINVAL;
6921
3dc27d25 6922 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6923 return -EINVAL;
6924
6925 memcpy(settings->ciphers_pairwise, data, len);
6926
6927 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6928 if (!cfg80211_supported_cipher_suite(
6929 &rdev->wiphy,
b23aa676
SO		 6930 settings->ciphers_pairwise[i]))
6931 return -EINVAL;
6932 }
6933
6934 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6935 settings->cipher_group =
6936 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6937 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6938 settings->cipher_group))
b23aa676
SO		 6939 return -EINVAL;
6940 }
6941
6942 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6943 settings->wpa_versions =
6944 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6945 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6946 return -EINVAL;
6947 }
6948
6949 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6950 void *data;
6d30240e 6951 int len;
b23aa676
SO		 6952
6953 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6954 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6955 settings->n_akm_suites = len / sizeof(u32);
6956
6957 if (len % sizeof(u32))
6958 return -EINVAL;
6959
1b9ca027
JM		 6960 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6961 return -EINVAL;
6962
b23aa676 6963 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6964 }
6965
6966 return 0;
6967}
6968
636a5d36
JM		 6969static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6970{
4c476991
JB		 6971 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6972 struct net_device *dev = info->user_ptr[1];
f444de05 6973 struct ieee80211_channel *chan;
f62fab73
JB		 6974 struct cfg80211_assoc_request req = {};
6975 const u8 *bssid, *ssid;
6976 int err, ssid_len = 0;
636a5d36 6977
f4a11bb0
JB		 6978 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6979 return -EINVAL;
6980
6981 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6982 !info->attrs[NL80211_ATTR_SSID] ||
6983 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6984 return -EINVAL;
6985
4c476991
JB		 6986 if (!rdev->ops->assoc)
6987 return -EOPNOTSUPP;
636a5d36 6988
074ac8df 6989 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6990 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6991 return -EOPNOTSUPP;
eec60b03 6992
19957bb3 6993 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6994
664834de
JM		 6995 chan = nl80211_get_valid_chan(&rdev->wiphy,
6996 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6997 if (!chan)
4c476991 6998 return -EINVAL;
636a5d36 6999
19957bb3
JB		 7000 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7001 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7002
7003 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7004 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7005 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7006 }
7007
dc6382ce 7008 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7009 enum nl80211_mfp mfp =
dc6382ce 7010 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7011 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7012 req.use_mfp = true;
4c476991
JB		 7013 else if (mfp != NL80211_MFP_NO)
7014 return -EINVAL;
dc6382ce
JM		 7015 }
7016
3e5d7649 7017 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7018 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7019
7e7c8926 7020 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7021 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7022
7023 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7024 memcpy(&req.ht_capa_mask,
7025 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7026 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7027
7028 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7029 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7030 return -EINVAL;
f62fab73
JB		 7031 memcpy(&req.ht_capa,
7032 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7033 sizeof(req.ht_capa));
7e7c8926
BG		 7034 }
7035
ee2aca34 7036 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7037 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7038
7039 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7040 memcpy(&req.vht_capa_mask,
7041 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7042 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7043
7044 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7045 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7046 return -EINVAL;
f62fab73
JB		 7047 memcpy(&req.vht_capa,
7048 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7049 sizeof(req.vht_capa));
ee2aca34
JB		 7050 }
7051
bab5ab7d
AK		 7052 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7053 if (!(rdev->wiphy.features &
7054 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7055 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7056 return -EINVAL;
7057 req.flags |= ASSOC_REQ_USE_RRM;
7058 }
7059
f62fab73 7060 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7061 if (!err) {
7062 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7063 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7064 ssid, ssid_len, &req);
91bf9b26
JB		 7065 wdev_unlock(dev->ieee80211_ptr);
7066 }
636a5d36 7067
636a5d36
JM		 7068 return err;
7069}
7070
7071static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7072{
4c476991
JB		 7073 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7074 struct net_device *dev = info->user_ptr[1];
19957bb3 7075 const u8 *ie = NULL, *bssid;
91bf9b26 7076 int ie_len = 0, err;
19957bb3 7077 u16 reason_code;
d5cdfacb 7078 bool local_state_change;
636a5d36 7079
f4a11bb0
JB		 7080 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7081 return -EINVAL;
7082
7083 if (!info->attrs[NL80211_ATTR_MAC])
7084 return -EINVAL;
7085
7086 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7087 return -EINVAL;
7088
4c476991
JB		 7089 if (!rdev->ops->deauth)
7090 return -EOPNOTSUPP;
636a5d36 7091
074ac8df 7092 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7093 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7094 return -EOPNOTSUPP;
eec60b03 7095
19957bb3 7096 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7097
19957bb3
JB		 7098 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7099 if (reason_code == 0) {
f4a11bb0 7100 /* Reason Code 0 is reserved */
4c476991 7101 return -EINVAL;
255e737e 7102 }
636a5d36
JM		 7103
7104 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7105 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7106 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7107 }
7108
d5cdfacb
JM		 7109 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7110
91bf9b26
JB		 7111 wdev_lock(dev->ieee80211_ptr);
7112 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7113 local_state_change);
7114 wdev_unlock(dev->ieee80211_ptr);
7115 return err;
636a5d36
JM		 7116}
7117
7118static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7119{
4c476991
JB		 7120 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7121 struct net_device *dev = info->user_ptr[1];
19957bb3 7122 const u8 *ie = NULL, *bssid;
91bf9b26 7123 int ie_len = 0, err;
19957bb3 7124 u16 reason_code;
d5cdfacb 7125 bool local_state_change;
636a5d36 7126
f4a11bb0
JB		 7127 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7128 return -EINVAL;
7129
7130 if (!info->attrs[NL80211_ATTR_MAC])
7131 return -EINVAL;
7132
7133 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7134 return -EINVAL;
7135
4c476991
JB		 7136 if (!rdev->ops->disassoc)
7137 return -EOPNOTSUPP;
636a5d36 7138
074ac8df 7139 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7140 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7141 return -EOPNOTSUPP;
eec60b03 7142
19957bb3 7143 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7144
19957bb3
JB		 7145 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7146 if (reason_code == 0) {
f4a11bb0 7147 /* Reason Code 0 is reserved */
4c476991 7148 return -EINVAL;
255e737e 7149 }
636a5d36
JM		 7150
7151 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7152 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7153 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7154 }
7155
d5cdfacb
JM		 7156 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7157
91bf9b26
JB		 7158 wdev_lock(dev->ieee80211_ptr);
7159 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7160 local_state_change);
7161 wdev_unlock(dev->ieee80211_ptr);
7162 return err;
636a5d36
JM		 7163}
7164
dd5b4cc7
FF		 7165static bool
7166nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7167 int mcast_rate[IEEE80211_NUM_BANDS],
7168 int rateval)
7169{
7170 struct wiphy *wiphy = &rdev->wiphy;
7171 bool found = false;
7172 int band, i;
7173
7174 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7175 struct ieee80211_supported_band *sband;
7176
7177 sband = wiphy->bands[band];
7178 if (!sband)
7179 continue;
7180
7181 for (i = 0; i < sband->n_bitrates; i++) {
7182 if (sband->bitrates[i].bitrate == rateval) {
7183 mcast_rate[band] = i + 1;
7184 found = true;
7185 break;
7186 }
7187 }
7188 }
7189
7190 return found;
7191}
7192
04a773ad
JB		 7193static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7194{
4c476991
JB		 7195 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7196 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7197 struct cfg80211_ibss_params ibss;
7198 struct wiphy *wiphy;
fffd0934 7199 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7200 int err;
7201
8e30bc55
JB		 7202 memset(&ibss, 0, sizeof(ibss));
7203
04a773ad
JB		 7204 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7205 return -EINVAL;
7206
683b6d3b 7207 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7208 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7209 return -EINVAL;
7210
8e30bc55
JB		 7211 ibss.beacon_interval = 100;
7212
7213 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7214 ibss.beacon_interval =
7215 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7216 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7217 return -EINVAL;
7218 }
7219
4c476991
JB		 7220 if (!rdev->ops->join_ibss)
7221 return -EOPNOTSUPP;
04a773ad 7222
4c476991
JB		 7223 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7224 return -EOPNOTSUPP;
04a773ad 7225
79c97e97 7226 wiphy = &rdev->wiphy;
04a773ad 7227
39193498 7228 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7229 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7230
7231 if (!is_valid_ether_addr(ibss.bssid))
7232 return -EINVAL;
7233 }
04a773ad
JB		 7234 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7235 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7236
7237 if (info->attrs[NL80211_ATTR_IE]) {
7238 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7239 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7240 }
7241
683b6d3b
JB		 7242 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7243 if (err)
7244 return err;
04a773ad 7245
174e0cd2
IP		 7246 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7247 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7248 return -EINVAL;
7249
2f301ab2 7250 switch (ibss.chandef.width) {
bf372645
SW		 7251 case NL80211_CHAN_WIDTH_5:
7252 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7253 case NL80211_CHAN_WIDTH_20_NOHT:
7254 break;
7255 case NL80211_CHAN_WIDTH_20:
7256 case NL80211_CHAN_WIDTH_40:
7257 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
7258 break;
7259 default:
c04d6150 7260 return -EINVAL;
2f301ab2 7261 }
db9c64cf 7262
04a773ad 7263 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7264 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7265
fbd2c8dc
TP		 7266 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7267 u8 *rates =
7268 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7269 int n_rates =
7270 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7271 struct ieee80211_supported_band *sband =
683b6d3b 7272 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7273
34850ab2
JB		 7274 err = ieee80211_get_ratemask(sband, rates, n_rates,
7275 &ibss.basic_rates);
7276 if (err)
7277 return err;
fbd2c8dc 7278 }
dd5b4cc7 7279
803768f5
SW		 7280 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7281 memcpy(&ibss.ht_capa_mask,
7282 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7283 sizeof(ibss.ht_capa_mask));
7284
7285 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7286 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7287 return -EINVAL;
7288 memcpy(&ibss.ht_capa,
7289 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7290 sizeof(ibss.ht_capa));
7291 }
7292
dd5b4cc7
FF		 7293 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7294 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7295 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7296 return -EINVAL;
fbd2c8dc 7297
4c476991 7298 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7299 bool no_ht = false;
7300
4c476991 7301 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7302 info->attrs[NL80211_ATTR_KEYS],
7303 &no_ht);
4c476991
JB		 7304 if (IS_ERR(connkeys))
7305 return PTR_ERR(connkeys);
de7044ee 7306
3d9d1d66
JB		 7307 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7308 no_ht) {
de7044ee
SM		 7309 kfree(connkeys);
7310 return -EINVAL;
7311 }
4c476991 7312 }
04a773ad 7313
267335d6
AQ		 7314 ibss.control_port =
7315 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7316
5336fa88
SW		 7317 ibss.userspace_handles_dfs =
7318 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7319
4c476991 7320 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7321 if (err)
b47f610b 7322 kzfree(connkeys);
04a773ad
JB		 7323 return err;
7324}
7325
7326static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7327{
4c476991
JB		 7328 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7329 struct net_device *dev = info->user_ptr[1];
04a773ad 7330
4c476991
JB		 7331 if (!rdev->ops->leave_ibss)
7332 return -EOPNOTSUPP;
04a773ad 7333
4c476991
JB		 7334 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7335 return -EOPNOTSUPP;
04a773ad 7336
4c476991 7337 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7338}
7339
f4e583c8
AQ		 7340static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7341{
7342 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7343 struct net_device *dev = info->user_ptr[1];
7344 int mcast_rate[IEEE80211_NUM_BANDS];
7345 u32 nla_rate;
7346 int err;
7347
7348 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7349 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7350 return -EOPNOTSUPP;
7351
7352 if (!rdev->ops->set_mcast_rate)
7353 return -EOPNOTSUPP;
7354
7355 memset(mcast_rate, 0, sizeof(mcast_rate));
7356
7357 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7358 return -EINVAL;
7359
7360 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7361 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7362 return -EINVAL;
7363
7364 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7365
7366 return err;
7367}
7368
ad7e718c
JB		 7369static struct sk_buff *
7370__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7371 int approxlen, u32 portid, u32 seq,
7372 enum nl80211_commands cmd,
567ffc35
JB		 7373 enum nl80211_attrs attr,
7374 const struct nl80211_vendor_cmd_info *info,
7375 gfp_t gfp)
ad7e718c
JB		 7376{
7377 struct sk_buff *skb;
7378 void *hdr;
7379 struct nlattr *data;
7380
7381 skb = nlmsg_new(approxlen + 100, gfp);
7382 if (!skb)
7383 return NULL;
7384
7385 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7386 if (!hdr) {
7387 kfree_skb(skb);
7388 return NULL;
7389 }
7390
7391 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7392 goto nla_put_failure;
567ffc35
JB		 7393
7394 if (info) {
7395 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7396 info->vendor_id))
7397 goto nla_put_failure;
7398 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7399 info->subcmd))
7400 goto nla_put_failure;
7401 }
7402
ad7e718c
JB		 7403 data = nla_nest_start(skb, attr);
7404
7405 ((void **)skb->cb)[0] = rdev;
7406 ((void **)skb->cb)[1] = hdr;
7407 ((void **)skb->cb)[2] = data;
7408
7409 return skb;
7410
7411 nla_put_failure:
7412 kfree_skb(skb);
7413 return NULL;
7414}
f4e583c8 7415
e03ad6ea
JB		 7416struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7417 enum nl80211_commands cmd,
7418 enum nl80211_attrs attr,
7419 int vendor_event_idx,
7420 int approxlen, gfp_t gfp)
7421{
f26cbf40 7422 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7423 const struct nl80211_vendor_cmd_info *info;
7424
7425 switch (cmd) {
7426 case NL80211_CMD_TESTMODE:
7427 if (WARN_ON(vendor_event_idx != -1))
7428 return NULL;
7429 info = NULL;
7430 break;
7431 case NL80211_CMD_VENDOR:
7432 if (WARN_ON(vendor_event_idx < 0 ||
7433 vendor_event_idx >= wiphy->n_vendor_events))
7434 return NULL;
7435 info = &wiphy->vendor_events[vendor_event_idx];
7436 break;
7437 default:
7438 WARN_ON(1);
7439 return NULL;
7440 }
7441
7442 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7443 cmd, attr, info, gfp);
7444}
7445EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7446
7447void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7448{
7449 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7450 void *hdr = ((void **)skb->cb)[1];
7451 struct nlattr *data = ((void **)skb->cb)[2];
7452 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7453
bd8c78e7
JB		 7454 /* clear CB data for netlink core to own from now on */
7455 memset(skb->cb, 0, sizeof(skb->cb));
7456
e03ad6ea
JB		 7457 nla_nest_end(skb, data);
7458 genlmsg_end(skb, hdr);
7459
7460 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7461 mcgrp = NL80211_MCGRP_VENDOR;
7462
7463 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7464 mcgrp, gfp);
7465}
7466EXPORT_SYMBOL(__cfg80211_send_event_skb);
7467
aff89a9b 7468#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7469static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7470{
4c476991 7471 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7472 struct wireless_dev *wdev =
7473 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7474 int err;
7475
fc73f11f
DS		 7476 if (!rdev->ops->testmode_cmd)
7477 return -EOPNOTSUPP;
7478
7479 if (IS_ERR(wdev)) {
7480 err = PTR_ERR(wdev);
7481 if (err != -EINVAL)
7482 return err;
7483 wdev = NULL;
7484 } else if (wdev->wiphy != &rdev->wiphy) {
7485 return -EINVAL;
7486 }
7487
aff89a9b
JB		 7488 if (!info->attrs[NL80211_ATTR_TESTDATA])
7489 return -EINVAL;
7490
ad7e718c 7491 rdev->cur_cmd_info = info;
fc73f11f 7492 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7493 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7494 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7495 rdev->cur_cmd_info = NULL;
aff89a9b 7496
aff89a9b
JB		 7497 return err;
7498}
7499
71063f0e
WYG		 7500static int nl80211_testmode_dump(struct sk_buff *skb,
7501 struct netlink_callback *cb)
7502{
00918d33 7503 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7504 int err;
7505 long phy_idx;
7506 void *data = NULL;
7507 int data_len = 0;
7508
5fe231e8
JB		 7509 rtnl_lock();
7510
71063f0e
WYG		 7511 if (cb->args[0]) {
7512 /*
7513 * 0 is a valid index, but not valid for args[0],
7514 * so we need to offset by 1.
7515 */
7516 phy_idx = cb->args[0] - 1;
7517 } else {
7518 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7519 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7520 nl80211_policy);
7521 if (err)
5fe231e8 7522 goto out_err;
00918d33 7523
2bd7e35d
JB		 7524 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7525 nl80211_fam.attrbuf);
7526 if (IS_ERR(rdev)) {
5fe231e8
JB		 7527 err = PTR_ERR(rdev);
7528 goto out_err;
00918d33 7529 }
2bd7e35d
JB		 7530 phy_idx = rdev->wiphy_idx;
7531 rdev = NULL;
2bd7e35d 7532
71063f0e
WYG		 7533 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7534 cb->args[1] =
7535 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7536 }
7537
7538 if (cb->args[1]) {
7539 data = nla_data((void *)cb->args[1]);
7540 data_len = nla_len((void *)cb->args[1]);
7541 }
7542
00918d33
JB		 7543 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7544 if (!rdev) {
5fe231e8
JB		 7545 err = -ENOENT;
7546 goto out_err;
71063f0e 7547 }
71063f0e 7548
00918d33 7549 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7550 err = -EOPNOTSUPP;
7551 goto out_err;
7552 }
7553
7554 while (1) {
15e47304 7555 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7556 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7557 NL80211_CMD_TESTMODE);
7558 struct nlattr *tmdata;
7559
cb35fba3
DC		 7560 if (!hdr)
7561 break;
7562
9360ffd1 7563 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7564 genlmsg_cancel(skb, hdr);
7565 break;
7566 }
7567
7568 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7569 if (!tmdata) {
7570 genlmsg_cancel(skb, hdr);
7571 break;
7572 }
e35e4d28 7573 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7574 nla_nest_end(skb, tmdata);
7575
7576 if (err == -ENOBUFS || err == -ENOENT) {
7577 genlmsg_cancel(skb, hdr);
7578 break;
7579 } else if (err) {
7580 genlmsg_cancel(skb, hdr);
7581 goto out_err;
7582 }
7583
7584 genlmsg_end(skb, hdr);
7585 }
7586
7587 err = skb->len;
7588 /* see above */
7589 cb->args[0] = phy_idx + 1;
7590 out_err:
5fe231e8 7591 rtnl_unlock();
71063f0e
WYG		 7592 return err;
7593}
aff89a9b
JB		 7594#endif
7595
b23aa676
SO		 7596static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7597{
4c476991
JB		 7598 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7599 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7600 struct cfg80211_connect_params connect;
7601 struct wiphy *wiphy;
fffd0934 7602 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7603 int err;
7604
7605 memset(&connect, 0, sizeof(connect));
7606
7607 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7608 return -EINVAL;
7609
7610 if (!info->attrs[NL80211_ATTR_SSID] ||
7611 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7612 return -EINVAL;
7613
7614 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7615 connect.auth_type =
7616 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7617 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7618 NL80211_CMD_CONNECT))
b23aa676
SO		 7619 return -EINVAL;
7620 } else
7621 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7622
7623 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7624
c0692b8f 7625 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7626 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7627 if (err)
7628 return err;
b23aa676 7629
074ac8df 7630 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7631 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7632 return -EOPNOTSUPP;
b23aa676 7633
79c97e97 7634 wiphy = &rdev->wiphy;
b23aa676 7635
4486ea98
BS		 7636 connect.bg_scan_period = -1;
7637 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7638 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7639 connect.bg_scan_period =
7640 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7641 }
7642
b23aa676
SO		 7643 if (info->attrs[NL80211_ATTR_MAC])
7644 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7645 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7646 connect.bssid_hint =
7647 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7648 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7649 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7650
7651 if (info->attrs[NL80211_ATTR_IE]) {
7652 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7653 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7654 }
7655
cee00a95
JM		 7656 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7657 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7658 if (connect.mfp != NL80211_MFP_REQUIRED &&
7659 connect.mfp != NL80211_MFP_NO)
7660 return -EINVAL;
7661 } else {
7662 connect.mfp = NL80211_MFP_NO;
7663 }
7664
b23aa676 7665 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7666 connect.channel = nl80211_get_valid_chan(
7667 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7668 if (!connect.channel)
1df4a510
JM		 7669 return -EINVAL;
7670 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7671 connect.channel_hint = nl80211_get_valid_chan(
7672 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7673 if (!connect.channel_hint)
4c476991 7674 return -EINVAL;
b23aa676
SO		 7675 }
7676
fffd0934
JB		 7677 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7678 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7679 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7680 if (IS_ERR(connkeys))
7681 return PTR_ERR(connkeys);
fffd0934
JB		 7682 }
7683
7e7c8926
BG		 7684 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7685 connect.flags |= ASSOC_REQ_DISABLE_HT;
7686
7687 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7688 memcpy(&connect.ht_capa_mask,
7689 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7690 sizeof(connect.ht_capa_mask));
7691
7692 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7693 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7694 kzfree(connkeys);
7e7c8926 7695 return -EINVAL;
b4e4f47e 7696 }
7e7c8926
BG		 7697 memcpy(&connect.ht_capa,
7698 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7699 sizeof(connect.ht_capa));
7700 }
7701
ee2aca34
JB		 7702 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7703 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7704
7705 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7706 memcpy(&connect.vht_capa_mask,
7707 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7708 sizeof(connect.vht_capa_mask));
7709
7710 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7711 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7712 kzfree(connkeys);
ee2aca34
JB		 7713 return -EINVAL;
7714 }
7715 memcpy(&connect.vht_capa,
7716 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7717 sizeof(connect.vht_capa));
7718 }
7719
bab5ab7d
AK		 7720 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7721 if (!(rdev->wiphy.features &
7722 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7723 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7724 return -EINVAL;
7725 connect.flags |= ASSOC_REQ_USE_RRM;
7726 }
7727
83739b03
JB		 7728 wdev_lock(dev->ieee80211_ptr);
7729 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7730 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7731 if (err)
b47f610b 7732 kzfree(connkeys);
b23aa676
SO		 7733 return err;
7734}
7735
7736static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7737{
4c476991
JB		 7738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7739 struct net_device *dev = info->user_ptr[1];
b23aa676 7740 u16 reason;
83739b03 7741 int ret;
b23aa676
SO		 7742
7743 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7744 reason = WLAN_REASON_DEAUTH_LEAVING;
7745 else
7746 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7747
7748 if (reason == 0)
7749 return -EINVAL;
7750
074ac8df 7751 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7752 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7753 return -EOPNOTSUPP;
b23aa676 7754
83739b03
JB		 7755 wdev_lock(dev->ieee80211_ptr);
7756 ret = cfg80211_disconnect(rdev, dev, reason, true);
7757 wdev_unlock(dev->ieee80211_ptr);
7758 return ret;
b23aa676
SO		 7759}
7760
463d0183
JB		 7761static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7762{
4c476991 7763 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7764 struct net *net;
7765 int err;
463d0183 7766
4b681c82
VK		 7767 if (info->attrs[NL80211_ATTR_PID]) {
7768 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7769
7770 net = get_net_ns_by_pid(pid);
7771 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
7772 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 7773
4b681c82
VK		 7774 net = get_net_ns_by_fd(fd);
7775 } else {
7776 return -EINVAL;
7777 }
463d0183 7778
4c476991
JB		 7779 if (IS_ERR(net))
7780 return PTR_ERR(net);
463d0183
JB		 7781
7782 err = 0;
7783
7784 /* check if anything to do */
4c476991
JB		 7785 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7786 err = cfg80211_switch_netns(rdev, net);
463d0183 7787
463d0183 7788 put_net(net);
463d0183
JB		 7789 return err;
7790}
7791
67fbb16b
SO		 7792static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7793{
4c476991 7794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7795 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7796 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7797 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7798 struct cfg80211_pmksa pmksa;
7799
7800 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7801
7802 if (!info->attrs[NL80211_ATTR_MAC])
7803 return -EINVAL;
7804
7805 if (!info->attrs[NL80211_ATTR_PMKID])
7806 return -EINVAL;
7807
67fbb16b
SO		 7808 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7809 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7810
074ac8df 7811 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7812 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7813 return -EOPNOTSUPP;
67fbb16b
SO		 7814
7815 switch (info->genlhdr->cmd) {
7816 case NL80211_CMD_SET_PMKSA:
7817 rdev_ops = rdev->ops->set_pmksa;
7818 break;
7819 case NL80211_CMD_DEL_PMKSA:
7820 rdev_ops = rdev->ops->del_pmksa;
7821 break;
7822 default:
7823 WARN_ON(1);
7824 break;
7825 }
7826
4c476991
JB		 7827 if (!rdev_ops)
7828 return -EOPNOTSUPP;
67fbb16b 7829
4c476991 7830 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7831}
7832
7833static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7834{
4c476991
JB		 7835 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7836 struct net_device *dev = info->user_ptr[1];
67fbb16b 7837
074ac8df 7838 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7839 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7840 return -EOPNOTSUPP;
67fbb16b 7841
4c476991
JB		 7842 if (!rdev->ops->flush_pmksa)
7843 return -EOPNOTSUPP;
67fbb16b 7844
e35e4d28 7845 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7846}
7847
109086ce
AN		 7848static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7849{
7850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7851 struct net_device *dev = info->user_ptr[1];
7852 u8 action_code, dialog_token;
df942e7b 7853 u32 peer_capability = 0;
109086ce
AN		 7854 u16 status_code;
7855 u8 *peer;
31fa97c5 7856 bool initiator;
109086ce
AN		 7857
7858 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7859 !rdev->ops->tdls_mgmt)
7860 return -EOPNOTSUPP;
7861
7862 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7863 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7864 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7865 !info->attrs[NL80211_ATTR_IE] ||
7866 !info->attrs[NL80211_ATTR_MAC])
7867 return -EINVAL;
7868
7869 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7870 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7871 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7872 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7873 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7874 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7875 peer_capability =
7876 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7877
e35e4d28 7878 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7879 dialog_token, status_code, peer_capability,
31fa97c5 7880 initiator,
e35e4d28
HG		 7881 nla_data(info->attrs[NL80211_ATTR_IE]),
7882 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7883}
7884
7885static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7886{
7887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7888 struct net_device *dev = info->user_ptr[1];
7889 enum nl80211_tdls_operation operation;
7890 u8 *peer;
7891
7892 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7893 !rdev->ops->tdls_oper)
7894 return -EOPNOTSUPP;
7895
7896 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7897 !info->attrs[NL80211_ATTR_MAC])
7898 return -EINVAL;
7899
7900 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7901 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7902
e35e4d28 7903 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7904}
7905
9588bbd5
JM		 7906static int nl80211_remain_on_channel(struct sk_buff *skb,
7907 struct genl_info *info)
7908{
4c476991 7909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7910 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7911 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7912 struct sk_buff *msg;
7913 void *hdr;
7914 u64 cookie;
683b6d3b 7915 u32 duration;
9588bbd5
JM		 7916 int err;
7917
7918 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7919 !info->attrs[NL80211_ATTR_DURATION])
7920 return -EINVAL;
7921
7922 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7923
ebf348fc
JB		 7924 if (!rdev->ops->remain_on_channel ||
7925 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7926 return -EOPNOTSUPP;
7927
9588bbd5 7928 /*
ebf348fc
JB		 7929 * We should be on that channel for at least a minimum amount of
7930 * time (10ms) but no longer than the driver supports.
9588bbd5 7931 */
ebf348fc 7932 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7933 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7934 return -EINVAL;
7935
683b6d3b
JB		 7936 err = nl80211_parse_chandef(rdev, info, &chandef);
7937 if (err)
7938 return err;
9588bbd5
JM		 7939
7940 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7941 if (!msg)
7942 return -ENOMEM;
9588bbd5 7943
15e47304 7944 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7945 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7946 if (!hdr) {
7947 err = -ENOBUFS;
9588bbd5
JM		 7948 goto free_msg;
7949 }
7950
683b6d3b
JB		 7951 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7952 duration, &cookie);
9588bbd5
JM		 7953
7954 if (err)
7955 goto free_msg;
7956
9360ffd1
DM		 7957 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7958 goto nla_put_failure;
9588bbd5
JM		 7959
7960 genlmsg_end(msg, hdr);
4c476991
JB		 7961
7962 return genlmsg_reply(msg, info);
9588bbd5
JM		 7963
7964 nla_put_failure:
7965 err = -ENOBUFS;
7966 free_msg:
7967 nlmsg_free(msg);
9588bbd5
JM		 7968 return err;
7969}
7970
7971static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7972 struct genl_info *info)
7973{
4c476991 7974 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7975 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7976 u64 cookie;
9588bbd5
JM		 7977
7978 if (!info->attrs[NL80211_ATTR_COOKIE])
7979 return -EINVAL;
7980
4c476991
JB		 7981 if (!rdev->ops->cancel_remain_on_channel)
7982 return -EOPNOTSUPP;
9588bbd5 7983
9588bbd5
JM		 7984 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7985
e35e4d28 7986 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7987}
7988
13ae75b1
JM		 7989static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7990 u8 *rates, u8 rates_len)
7991{
7992 u8 i;
7993 u32 mask = 0;
7994
7995 for (i = 0; i < rates_len; i++) {
7996 int rate = (rates[i] & 0x7f) * 5;
7997 int ridx;
7998 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7999 struct ieee80211_rate *srate =
8000 &sband->bitrates[ridx];
8001 if (rate == srate->bitrate) {
8002 mask |= 1 << ridx;
8003 break;
8004 }
8005 }
8006 if (ridx == sband->n_bitrates)
8007 return 0; /* rate not found */
8008 }
8009
8010 return mask;
8011}
8012
24db78c0
SW		 8013static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8014 u8 *rates, u8 rates_len,
8015 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8016{
8017 u8 i;
8018
8019 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8020
8021 for (i = 0; i < rates_len; i++) {
8022 int ridx, rbit;
8023
8024 ridx = rates[i] / 8;
8025 rbit = BIT(rates[i] % 8);
8026
8027 /* check validity */
910570b5 8028 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8029 return false;
8030
8031 /* check availability */
8032 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8033 mcs[ridx] |= rbit;
8034 else
8035 return false;
8036 }
8037
8038 return true;
8039}
8040
204e35a9
JD		 8041static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8042{
8043 u16 mcs_mask = 0;
8044
8045 switch (vht_mcs_map) {
8046 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8047 break;
8048 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8049 mcs_mask = 0x00FF;
8050 break;
8051 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8052 mcs_mask = 0x01FF;
8053 break;
8054 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8055 mcs_mask = 0x03FF;
8056 break;
8057 default:
8058 break;
8059 }
8060
8061 return mcs_mask;
8062}
8063
8064static void vht_build_mcs_mask(u16 vht_mcs_map,
8065 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8066{
8067 u8 nss;
8068
8069 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8070 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8071 vht_mcs_map >>= 2;
8072 }
8073}
8074
8075static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8076 struct nl80211_txrate_vht *txrate,
8077 u16 mcs[NL80211_VHT_NSS_MAX])
8078{
8079 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8080 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8081 u8 i;
8082
8083 if (!sband->vht_cap.vht_supported)
8084 return false;
8085
8086 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8087
8088 /* Build vht_mcs_mask from VHT capabilities */
8089 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8090
8091 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8092 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8093 mcs[i] = txrate->mcs[i];
8094 else
8095 return false;
8096 }
8097
8098 return true;
8099}
8100
b54452b0 8101static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8102 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8103 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8104 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8105 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8106 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8107 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8108};
8109
8110static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8111 struct genl_info *info)
8112{
8113 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8115 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8116 int rem, i;
8117 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8118 struct nlattr *tx_rates;
8119 struct ieee80211_supported_band *sband;
204e35a9 8120 u16 vht_tx_mcs_map;
13ae75b1 8121
4c476991
JB		 8122 if (!rdev->ops->set_bitrate_mask)
8123 return -EOPNOTSUPP;
13ae75b1
JM		 8124
8125 memset(&mask, 0, sizeof(mask));
8126 /* Default to all rates enabled */
8127 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8128 sband = rdev->wiphy.bands[i];
7869303b
JD		 8129
8130 if (!sband)
8131 continue;
8132
8133 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8134 memcpy(mask.control[i].ht_mcs,
7869303b 8135 sband->ht_cap.mcs.rx_mask,
d1e33e65 8136 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8137
8138 if (!sband->vht_cap.vht_supported)
8139 continue;
8140
8141 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8142 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8143 }
8144
b9243ab0
JD		 8145 /* if no rates are given set it back to the defaults */
8146 if (!info->attrs[NL80211_ATTR_TX_RATES])
8147 goto out;
8148
13ae75b1
JM		 8149 /*
8150 * The nested attribute uses enum nl80211_band as the index. This maps
8151 * directly to the enum ieee80211_band values used in cfg80211.
8152 */
24db78c0 8153 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8154 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8155 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8156 int err;
8157
4c476991
JB		 8158 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8159 return -EINVAL;
13ae75b1 8160 sband = rdev->wiphy.bands[band];
4c476991
JB		 8161 if (sband == NULL)
8162 return -EINVAL;
ae811e21
JB		 8163 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8164 nla_len(tx_rates), nl80211_txattr_policy);
8165 if (err)
8166 return err;
13ae75b1
JM		 8167 if (tb[NL80211_TXRATE_LEGACY]) {
8168 mask.control[band].legacy = rateset_to_mask(
8169 sband,
8170 nla_data(tb[NL80211_TXRATE_LEGACY]),
8171 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8172 if ((mask.control[band].legacy == 0) &&
8173 nla_len(tb[NL80211_TXRATE_LEGACY]))
8174 return -EINVAL;
24db78c0 8175 }
d1e33e65 8176 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8177 if (!ht_rateset_to_mask(
8178 sband,
d1e33e65
JD		 8179 nla_data(tb[NL80211_TXRATE_HT]),
8180 nla_len(tb[NL80211_TXRATE_HT]),
8181 mask.control[band].ht_mcs))
24db78c0
SW		 8182 return -EINVAL;
8183 }
204e35a9
JD		 8184 if (tb[NL80211_TXRATE_VHT]) {
8185 if (!vht_set_mcs_mask(
8186 sband,
8187 nla_data(tb[NL80211_TXRATE_VHT]),
8188 mask.control[band].vht_mcs))
8189 return -EINVAL;
8190 }
0b9323f6
JD		 8191 if (tb[NL80211_TXRATE_GI]) {
8192 mask.control[band].gi =
8193 nla_get_u8(tb[NL80211_TXRATE_GI]);
8194 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8195 return -EINVAL;
8196 }
24db78c0
SW		 8197
8198 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8199 /* don't allow empty legacy rates if HT or VHT
8200 * are not even supported.
8201 */
8202 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8203 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8204 return -EINVAL;
8205
8206 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8207 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8208 goto out;
8209
8210 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8211 if (mask.control[band].vht_mcs[i])
8212 goto out;
24db78c0
SW		 8213
8214 /* legacy and mcs rates may not be both empty */
204e35a9 8215 return -EINVAL;
13ae75b1
JM		 8216 }
8217 }
8218
b9243ab0 8219out:
e35e4d28 8220 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8221}
8222
2e161f78 8223static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8224{
4c476991 8225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8226 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8227 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8228
8229 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8230 return -EINVAL;
8231
2e161f78
JB		 8232 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8233 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8234
71bbc994
JB		 8235 switch (wdev->iftype) {
8236 case NL80211_IFTYPE_STATION:
8237 case NL80211_IFTYPE_ADHOC:
8238 case NL80211_IFTYPE_P2P_CLIENT:
8239 case NL80211_IFTYPE_AP:
8240 case NL80211_IFTYPE_AP_VLAN:
8241 case NL80211_IFTYPE_MESH_POINT:
8242 case NL80211_IFTYPE_P2P_GO:
98104fde 8243 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8244 break;
8245 default:
4c476991 8246 return -EOPNOTSUPP;
71bbc994 8247 }
026331c4
JM		 8248
8249 /* not much point in registering if we can't reply */
4c476991
JB		 8250 if (!rdev->ops->mgmt_tx)
8251 return -EOPNOTSUPP;
026331c4 8252
15e47304 8253 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8254 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8255 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8256}
8257
2e161f78 8258static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8259{
4c476991 8260 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8261 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8262 struct cfg80211_chan_def chandef;
026331c4 8263 int err;
d64d373f 8264 void *hdr = NULL;
026331c4 8265 u64 cookie;
e247bd90 8266 struct sk_buff *msg = NULL;
b176e629
AO		 8267 struct cfg80211_mgmt_tx_params params = {
8268 .dont_wait_for_ack =
8269 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8270 };
026331c4 8271
683b6d3b 8272 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8273 return -EINVAL;
8274
4c476991
JB		 8275 if (!rdev->ops->mgmt_tx)
8276 return -EOPNOTSUPP;
026331c4 8277
71bbc994 8278 switch (wdev->iftype) {
ea141b75
AQ		 8279 case NL80211_IFTYPE_P2P_DEVICE:
8280 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8281 return -EINVAL;
71bbc994
JB		 8282 case NL80211_IFTYPE_STATION:
8283 case NL80211_IFTYPE_ADHOC:
8284 case NL80211_IFTYPE_P2P_CLIENT:
8285 case NL80211_IFTYPE_AP:
8286 case NL80211_IFTYPE_AP_VLAN:
8287 case NL80211_IFTYPE_MESH_POINT:
8288 case NL80211_IFTYPE_P2P_GO:
8289 break;
8290 default:
4c476991 8291 return -EOPNOTSUPP;
71bbc994 8292 }
026331c4 8293
f7ca38df 8294 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8295 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8296 return -EINVAL;
b176e629 8297 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8298
8299 /*
8300 * We should wait on the channel for at least a minimum amount
8301 * of time (10ms) but no longer than the driver supports.
8302 */
b176e629
AO		 8303 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8304 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8305 return -EINVAL;
8306
f7ca38df
JB		 8307 }
8308
b176e629 8309 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8310
b176e629 8311 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8312 return -EINVAL;
8313
b176e629 8314 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8315
ea141b75
AQ		 8316 /* get the channel if any has been specified, otherwise pass NULL to
8317 * the driver. The latter will use the current one
8318 */
8319 chandef.chan = NULL;
8320 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8321 err = nl80211_parse_chandef(rdev, info, &chandef);
8322 if (err)
8323 return err;
8324 }
8325
b176e629 8326 if (!chandef.chan && params.offchan)
ea141b75 8327 return -EINVAL;
026331c4 8328
34d22ce2
AO		 8329 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8330 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8331
8332 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8333 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8334 int i;
8335
8336 if (len % sizeof(u16))
8337 return -EINVAL;
8338
8339 params.n_csa_offsets = len / sizeof(u16);
8340 params.csa_offsets =
8341 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8342
8343 /* check that all the offsets fit the frame */
8344 for (i = 0; i < params.n_csa_offsets; i++) {
8345 if (params.csa_offsets[i] >= params.len)
8346 return -EINVAL;
8347 }
8348 }
8349
b176e629 8350 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8351 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8352 if (!msg)
8353 return -ENOMEM;
026331c4 8354
15e47304 8355 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8356 NL80211_CMD_FRAME);
cb35fba3
DC		 8357 if (!hdr) {
8358 err = -ENOBUFS;
e247bd90
JB		 8359 goto free_msg;
8360 }
026331c4 8361 }
e247bd90 8362
b176e629
AO		 8363 params.chan = chandef.chan;
8364 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8365 if (err)
8366 goto free_msg;
8367
e247bd90 8368 if (msg) {
9360ffd1
DM		 8369 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8370 goto nla_put_failure;
026331c4 8371
e247bd90
JB		 8372 genlmsg_end(msg, hdr);
8373 return genlmsg_reply(msg, info);
8374 }
8375
8376 return 0;
026331c4
JM		 8377
8378 nla_put_failure:
8379 err = -ENOBUFS;
8380 free_msg:
8381 nlmsg_free(msg);
026331c4
JM		 8382 return err;
8383}
8384
f7ca38df
JB		 8385static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8386{
8387 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8388 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8389 u64 cookie;
8390
8391 if (!info->attrs[NL80211_ATTR_COOKIE])
8392 return -EINVAL;
8393
8394 if (!rdev->ops->mgmt_tx_cancel_wait)
8395 return -EOPNOTSUPP;
8396
71bbc994
JB		 8397 switch (wdev->iftype) {
8398 case NL80211_IFTYPE_STATION:
8399 case NL80211_IFTYPE_ADHOC:
8400 case NL80211_IFTYPE_P2P_CLIENT:
8401 case NL80211_IFTYPE_AP:
8402 case NL80211_IFTYPE_AP_VLAN:
8403 case NL80211_IFTYPE_P2P_GO:
98104fde 8404 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8405 break;
8406 default:
f7ca38df 8407 return -EOPNOTSUPP;
71bbc994 8408 }
f7ca38df
JB		 8409
8410 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8411
e35e4d28 8412 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8413}
8414
ffb9eb3d
KV		 8415static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8416{
4c476991 8417 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8418 struct wireless_dev *wdev;
4c476991 8419 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8420 u8 ps_state;
8421 bool state;
8422 int err;
8423
4c476991
JB		 8424 if (!info->attrs[NL80211_ATTR_PS_STATE])
8425 return -EINVAL;
ffb9eb3d
KV		 8426
8427 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8428
4c476991
JB		 8429 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8430 return -EINVAL;
ffb9eb3d
KV		 8431
8432 wdev = dev->ieee80211_ptr;
8433
4c476991
JB		 8434 if (!rdev->ops->set_power_mgmt)
8435 return -EOPNOTSUPP;
ffb9eb3d
KV		 8436
8437 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8438
8439 if (state == wdev->ps)
4c476991 8440 return 0;
ffb9eb3d 8441
e35e4d28 8442 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8443 if (!err)
8444 wdev->ps = state;
ffb9eb3d
KV		 8445 return err;
8446}
8447
8448static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8449{
4c476991 8450 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8451 enum nl80211_ps_state ps_state;
8452 struct wireless_dev *wdev;
4c476991 8453 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8454 struct sk_buff *msg;
8455 void *hdr;
8456 int err;
8457
ffb9eb3d
KV		 8458 wdev = dev->ieee80211_ptr;
8459
4c476991
JB		 8460 if (!rdev->ops->set_power_mgmt)
8461 return -EOPNOTSUPP;
ffb9eb3d
KV		 8462
8463 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8464 if (!msg)
8465 return -ENOMEM;
ffb9eb3d 8466
15e47304 8467 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8468 NL80211_CMD_GET_POWER_SAVE);
8469 if (!hdr) {
4c476991 8470 err = -ENOBUFS;
ffb9eb3d
KV		 8471 goto free_msg;
8472 }
8473
8474 if (wdev->ps)
8475 ps_state = NL80211_PS_ENABLED;
8476 else
8477 ps_state = NL80211_PS_DISABLED;
8478
9360ffd1
DM		 8479 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8480 goto nla_put_failure;
ffb9eb3d
KV		 8481
8482 genlmsg_end(msg, hdr);
4c476991 8483 return genlmsg_reply(msg, info);
ffb9eb3d 8484
4c476991 8485 nla_put_failure:
ffb9eb3d 8486 err = -ENOBUFS;
4c476991 8487 free_msg:
ffb9eb3d 8488 nlmsg_free(msg);
ffb9eb3d
KV		 8489 return err;
8490}
8491
94e860f1
JB		 8492static const struct nla_policy
8493nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8494 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8495 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8496 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8497 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8498 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8499 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8500};
8501
84f10708 8502static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8503 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8504{
8505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8506 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8507 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8508
d9d8b019 8509 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8510 return -EINVAL;
8511
84f10708
TP		 8512 if (!rdev->ops->set_cqm_txe_config)
8513 return -EOPNOTSUPP;
8514
8515 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8516 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8517 return -EOPNOTSUPP;
8518
e35e4d28 8519 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8520}
8521
d6dc1a38
JO		 8522static int nl80211_set_cqm_rssi(struct genl_info *info,
8523 s32 threshold, u32 hysteresis)
8524{
4c476991 8525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8526 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8527 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8528
8529 if (threshold > 0)
8530 return -EINVAL;
8531
1da5fcc8
JB		 8532 /* disabling - hysteresis should also be zero then */
8533 if (threshold == 0)
8534 hysteresis = 0;
d6dc1a38 8535
4c476991
JB		 8536 if (!rdev->ops->set_cqm_rssi_config)
8537 return -EOPNOTSUPP;
d6dc1a38 8538
074ac8df 8539 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8540 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8541 return -EOPNOTSUPP;
d6dc1a38 8542
e35e4d28 8543 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8544}
8545
8546static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8547{
8548 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8549 struct nlattr *cqm;
8550 int err;
8551
8552 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8553 if (!cqm)
8554 return -EINVAL;
d6dc1a38
JO		 8555
8556 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8557 nl80211_attr_cqm_policy);
8558 if (err)
1da5fcc8 8559 return err;
d6dc1a38
JO		 8560
8561 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8562 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8563 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8564 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8565
1da5fcc8
JB		 8566 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8567 }
8568
8569 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8570 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8571 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8572 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8573 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8574 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8575
8576 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8577 }
8578
8579 return -EINVAL;
d6dc1a38
JO		 8580}
8581
6e0bd6c3
RL		 8582static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8583{
8584 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8585 struct net_device *dev = info->user_ptr[1];
8586 struct ocb_setup setup = {};
8587 int err;
8588
8589 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8590 if (err)
8591 return err;
8592
8593 return cfg80211_join_ocb(rdev, dev, &setup);
8594}
8595
8596static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8597{
8598 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8599 struct net_device *dev = info->user_ptr[1];
8600
8601 return cfg80211_leave_ocb(rdev, dev);
8602}
8603
29cbe68c
JB		 8604static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8605{
8606 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8607 struct net_device *dev = info->user_ptr[1];
8608 struct mesh_config cfg;
c80d545d 8609 struct mesh_setup setup;
29cbe68c
JB		 8610 int err;
8611
8612 /* start with default */
8613 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8614 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8615
24bdd9f4 8616 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8617 /* and parse parameters if given */
24bdd9f4 8618 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8619 if (err)
8620 return err;
8621 }
8622
8623 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8624 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8625 return -EINVAL;
8626
c80d545d
JC		 8627 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8628 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8629
4bb62344
CYY		 8630 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8631 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8632 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8633 return -EINVAL;
8634
9bdbf04d
MP		 8635 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8636 setup.beacon_interval =
8637 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8638 if (setup.beacon_interval < 10 ||
8639 setup.beacon_interval > 10000)
8640 return -EINVAL;
8641 }
8642
8643 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8644 setup.dtim_period =
8645 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8646 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8647 return -EINVAL;
8648 }
8649
c80d545d
JC		 8650 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8651 /* parse additional setup parameters if given */
8652 err = nl80211_parse_mesh_setup(info, &setup);
8653 if (err)
8654 return err;
8655 }
8656
d37bb18a
TP		 8657 if (setup.user_mpm)
8658 cfg.auto_open_plinks = false;
8659
cc1d2806 8660 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8661 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8662 if (err)
8663 return err;
cc1d2806
JB		 8664 } else {
8665 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8666 setup.chandef.chan = NULL;
cc1d2806
JB		 8667 }
8668
ffb3cf30
AN		 8669 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8670 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8671 int n_rates =
8672 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8673 struct ieee80211_supported_band *sband;
8674
8675 if (!setup.chandef.chan)
8676 return -EINVAL;
8677
8678 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8679
8680 err = ieee80211_get_ratemask(sband, rates, n_rates,
8681 &setup.basic_rates);
8682 if (err)
8683 return err;
8684 }
8685
c80d545d 8686 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8687}
8688
8689static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8690{
8691 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8692 struct net_device *dev = info->user_ptr[1];
8693
8694 return cfg80211_leave_mesh(rdev, dev);
8695}
8696
dfb89c56 8697#ifdef CONFIG_PM
bb92d199
AK		 8698static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8699 struct cfg80211_registered_device *rdev)
8700{
6abb9cb9 8701 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8702 struct nlattr *nl_pats, *nl_pat;
8703 int i, pat_len;
8704
6abb9cb9 8705 if (!wowlan->n_patterns)
bb92d199
AK		 8706 return 0;
8707
8708 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8709 if (!nl_pats)
8710 return -ENOBUFS;
8711
6abb9cb9 8712 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8713 nl_pat = nla_nest_start(msg, i + 1);
8714 if (!nl_pat)
8715 return -ENOBUFS;
6abb9cb9 8716 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8717 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8718 wowlan->patterns[i].mask) ||
50ac6607
AK		 8719 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8720 wowlan->patterns[i].pattern) ||
8721 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8722 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8723 return -ENOBUFS;
8724 nla_nest_end(msg, nl_pat);
8725 }
8726 nla_nest_end(msg, nl_pats);
8727
8728 return 0;
8729}
8730
2a0e047e
JB		 8731static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8732 struct cfg80211_wowlan_tcp *tcp)
8733{
8734 struct nlattr *nl_tcp;
8735
8736 if (!tcp)
8737 return 0;
8738
8739 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8740 if (!nl_tcp)
8741 return -ENOBUFS;
8742
8743 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8744 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8745 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8746 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8747 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8748 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8749 tcp->payload_len, tcp->payload) ||
8750 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8751 tcp->data_interval) ||
8752 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8753 tcp->wake_len, tcp->wake_data) ||
8754 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8755 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8756 return -ENOBUFS;
8757
8758 if (tcp->payload_seq.len &&
8759 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8760 sizeof(tcp->payload_seq), &tcp->payload_seq))
8761 return -ENOBUFS;
8762
8763 if (tcp->payload_tok.len &&
8764 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8765 sizeof(tcp->payload_tok) + tcp->tokens_size,
8766 &tcp->payload_tok))
8767 return -ENOBUFS;
8768
e248ad30
JB		 8769 nla_nest_end(msg, nl_tcp);
8770
2a0e047e
JB		 8771 return 0;
8772}
8773
75453ccb
LC		 8774static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8775 struct cfg80211_sched_scan_request *req)
8776{
8777 struct nlattr *nd, *freqs, *matches, *match;
8778 int i;
8779
8780 if (!req)
8781 return 0;
8782
8783 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
8784 if (!nd)
8785 return -ENOBUFS;
8786
8787 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, req->interval))
8788 return -ENOBUFS;
8789
8790 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8791 if (!freqs)
8792 return -ENOBUFS;
8793
8794 for (i = 0; i < req->n_channels; i++)
8795 nla_put_u32(msg, i, req->channels[i]->center_freq);
8796
8797 nla_nest_end(msg, freqs);
8798
8799 if (req->n_match_sets) {
8800 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
8801 for (i = 0; i < req->n_match_sets; i++) {
8802 match = nla_nest_start(msg, i);
8803 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
8804 req->match_sets[i].ssid.ssid_len,
8805 req->match_sets[i].ssid.ssid);
8806 nla_nest_end(msg, match);
8807 }
8808 nla_nest_end(msg, matches);
8809 }
8810
8811 nla_nest_end(msg, nd);
8812
8813 return 0;
8814}
8815
ff1b6e69
JB		 8816static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8817{
8818 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8819 struct sk_buff *msg;
8820 void *hdr;
2a0e047e 8821 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8822
964dc9e2 8823 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8824 return -EOPNOTSUPP;
8825
6abb9cb9 8826 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8827 /* adjust size to have room for all the data */
6abb9cb9
JB		 8828 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8829 rdev->wiphy.wowlan_config->tcp->payload_len +
8830 rdev->wiphy.wowlan_config->tcp->wake_len +
8831 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8832 }
8833
8834 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8835 if (!msg)
8836 return -ENOMEM;
8837
15e47304 8838 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8839 NL80211_CMD_GET_WOWLAN);
8840 if (!hdr)
8841 goto nla_put_failure;
8842
6abb9cb9 8843 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8844 struct nlattr *nl_wowlan;
8845
8846 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8847 if (!nl_wowlan)
8848 goto nla_put_failure;
8849
6abb9cb9 8850 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8851 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8852 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8853 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8854 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8855 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8856 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8857 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8858 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8859 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8860 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8861 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8862 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8863 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8864 goto nla_put_failure;
2a0e047e 8865
bb92d199
AK		 8866 if (nl80211_send_wowlan_patterns(msg, rdev))
8867 goto nla_put_failure;
2a0e047e 8868
6abb9cb9
JB		 8869 if (nl80211_send_wowlan_tcp(msg,
8870 rdev->wiphy.wowlan_config->tcp))
2a0e047e 8871 goto nla_put_failure;
75453ccb
LC		 8872
8873 if (nl80211_send_wowlan_nd(
8874 msg,
8875 rdev->wiphy.wowlan_config->nd_config))
8876 goto nla_put_failure;
2a0e047e 8877
ff1b6e69
JB		 8878 nla_nest_end(msg, nl_wowlan);
8879 }
8880
8881 genlmsg_end(msg, hdr);
8882 return genlmsg_reply(msg, info);
8883
8884nla_put_failure:
8885 nlmsg_free(msg);
8886 return -ENOBUFS;
8887}
8888
2a0e047e
JB		 8889static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8890 struct nlattr *attr,
8891 struct cfg80211_wowlan *trig)
8892{
8893 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8894 struct cfg80211_wowlan_tcp *cfg;
8895 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8896 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8897 u32 size;
8898 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8899 int err, port;
8900
964dc9e2 8901 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8902 return -EINVAL;
8903
8904 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8905 nla_data(attr), nla_len(attr),
8906 nl80211_wowlan_tcp_policy);
8907 if (err)
8908 return err;
8909
8910 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8911 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8912 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8913 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8914 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8915 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8916 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8917 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8918 return -EINVAL;
8919
8920 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8921 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8922 return -EINVAL;
8923
8924 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8925 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8926 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8927 return -EINVAL;
8928
8929 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8930 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8931 return -EINVAL;
8932
8933 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8934 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8935 return -EINVAL;
8936
8937 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8938 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8939
8940 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8941 tokens_size = tokln - sizeof(*tok);
8942
8943 if (!tok->len || tokens_size % tok->len)
8944 return -EINVAL;
964dc9e2 8945 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8946 return -EINVAL;
964dc9e2 8947 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8948 return -EINVAL;
964dc9e2 8949 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8950 return -EINVAL;
964dc9e2 8951 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8952 return -EINVAL;
8953 if (tok->offset + tok->len > data_size)
8954 return -EINVAL;
8955 }
8956
8957 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8958 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8959 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8960 return -EINVAL;
8961 if (seq->len == 0 || seq->len > 4)
8962 return -EINVAL;
8963 if (seq->len + seq->offset > data_size)
8964 return -EINVAL;
8965 }
8966
8967 size = sizeof(*cfg);
8968 size += data_size;
8969 size += wake_size + wake_mask_size;
8970 size += tokens_size;
8971
8972 cfg = kzalloc(size, GFP_KERNEL);
8973 if (!cfg)
8974 return -ENOMEM;
8975 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8976 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8977 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8978 ETH_ALEN);
8979 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8980 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8981 else
8982 port = 0;
8983#ifdef CONFIG_INET
8984 /* allocate a socket and port for it and use it */
8985 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8986 IPPROTO_TCP, &cfg->sock, 1);
8987 if (err) {
8988 kfree(cfg);
8989 return err;
8990 }
8991 if (inet_csk_get_port(cfg->sock->sk, port)) {
8992 sock_release(cfg->sock);
8993 kfree(cfg);
8994 return -EADDRINUSE;
8995 }
8996 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8997#else
8998 if (!port) {
8999 kfree(cfg);
9000 return -EINVAL;
9001 }
9002 cfg->src_port = port;
9003#endif
9004
9005 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9006 cfg->payload_len = data_size;
9007 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9008 memcpy((void *)cfg->payload,
9009 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9010 data_size);
9011 if (seq)
9012 cfg->payload_seq = *seq;
9013 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9014 cfg->wake_len = wake_size;
9015 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9016 memcpy((void *)cfg->wake_data,
9017 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9018 wake_size);
9019 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9020 data_size + wake_size;
9021 memcpy((void *)cfg->wake_mask,
9022 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9023 wake_mask_size);
9024 if (tok) {
9025 cfg->tokens_size = tokens_size;
9026 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9027 }
9028
9029 trig->tcp = cfg;
9030
9031 return 0;
9032}
9033
8cd4d456
LC		 9034static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9035 const struct wiphy_wowlan_support *wowlan,
9036 struct nlattr *attr,
9037 struct cfg80211_wowlan *trig)
9038{
9039 struct nlattr **tb;
9040 int err;
9041
9042 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9043 if (!tb)
9044 return -ENOMEM;
9045
9046 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9047 err = -EOPNOTSUPP;
9048 goto out;
9049 }
9050
9051 err = nla_parse(tb, NL80211_ATTR_MAX,
9052 nla_data(attr), nla_len(attr),
9053 nl80211_policy);
9054 if (err)
9055 goto out;
9056
ad2b26ab 9057 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9058 err = PTR_ERR_OR_ZERO(trig->nd_config);
9059 if (err)
9060 trig->nd_config = NULL;
9061
9062out:
9063 kfree(tb);
9064 return err;
9065}
9066
ff1b6e69
JB		 9067static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9068{
9069 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9070 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9071 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9072 struct cfg80211_wowlan *ntrig;
964dc9e2 9073 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9074 int err, i;
6abb9cb9 9075 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 9076
964dc9e2 9077 if (!wowlan)
ff1b6e69
JB		 9078 return -EOPNOTSUPP;
9079
ae33bd81
JB		 9080 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9081 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9082 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9083 goto set_wakeup;
9084 }
ff1b6e69
JB		 9085
9086 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9087 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9088 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9089 nl80211_wowlan_policy);
9090 if (err)
9091 return err;
9092
9093 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9094 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9095 return -EINVAL;
9096 new_triggers.any = true;
9097 }
9098
9099 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9100 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9101 return -EINVAL;
9102 new_triggers.disconnect = true;
9103 }
9104
9105 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9106 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9107 return -EINVAL;
9108 new_triggers.magic_pkt = true;
9109 }
9110
77dbbb13
JB		 9111 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9112 return -EINVAL;
9113
9114 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9115 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9116 return -EINVAL;
9117 new_triggers.gtk_rekey_failure = true;
9118 }
9119
9120 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9121 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9122 return -EINVAL;
9123 new_triggers.eap_identity_req = true;
9124 }
9125
9126 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9127 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9128 return -EINVAL;
9129 new_triggers.four_way_handshake = true;
9130 }
9131
9132 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9133 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9134 return -EINVAL;
9135 new_triggers.rfkill_release = true;
9136 }
9137
ff1b6e69
JB		 9138 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9139 struct nlattr *pat;
9140 int n_patterns = 0;
bb92d199 9141 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9142 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 9143
9144 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9145 rem)
9146 n_patterns++;
9147 if (n_patterns > wowlan->n_patterns)
9148 return -EINVAL;
9149
9150 new_triggers.patterns = kcalloc(n_patterns,
9151 sizeof(new_triggers.patterns[0]),
9152 GFP_KERNEL);
9153 if (!new_triggers.patterns)
9154 return -ENOMEM;
9155
9156 new_triggers.n_patterns = n_patterns;
9157 i = 0;
9158
9159 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9160 rem) {
922bd80f
JB		 9161 u8 *mask_pat;
9162
50ac6607
AK		 9163 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9164 nla_len(pat), NULL);
ff1b6e69 9165 err = -EINVAL;
50ac6607
AK		 9166 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9167 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9168 goto error;
50ac6607 9169 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9170 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9171 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9172 goto error;
9173 if (pat_len > wowlan->pattern_max_len ||
9174 pat_len < wowlan->pattern_min_len)
9175 goto error;
9176
50ac6607 9177 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9178 pkt_offset = 0;
9179 else
9180 pkt_offset = nla_get_u32(
50ac6607 9181 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9182 if (pkt_offset > wowlan->max_pkt_offset)
9183 goto error;
9184 new_triggers.patterns[i].pkt_offset = pkt_offset;
9185
922bd80f
JB		 9186 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9187 if (!mask_pat) {
ff1b6e69
JB		 9188 err = -ENOMEM;
9189 goto error;
9190 }
922bd80f
JB		 9191 new_triggers.patterns[i].mask = mask_pat;
9192 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9193 mask_len);
922bd80f
JB		 9194 mask_pat += mask_len;
9195 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9196 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9197 memcpy(mask_pat,
50ac6607 9198 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9199 pat_len);
9200 i++;
9201 }
9202 }
9203
2a0e047e
JB		 9204 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9205 err = nl80211_parse_wowlan_tcp(
9206 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9207 &new_triggers);
9208 if (err)
9209 goto error;
9210 }
9211
8cd4d456
LC		 9212 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9213 err = nl80211_parse_wowlan_nd(
9214 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9215 &new_triggers);
9216 if (err)
9217 goto error;
9218 }
9219
ae33bd81
JB		 9220 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9221 if (!ntrig) {
9222 err = -ENOMEM;
9223 goto error;
ff1b6e69 9224 }
ae33bd81 9225 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9226 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9227
ae33bd81 9228 set_wakeup:
6abb9cb9
JB		 9229 if (rdev->ops->set_wakeup &&
9230 prev_enabled != !!rdev->wiphy.wowlan_config)
9231 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9232
ff1b6e69
JB		 9233 return 0;
9234 error:
9235 for (i = 0; i < new_triggers.n_patterns; i++)
9236 kfree(new_triggers.patterns[i].mask);
9237 kfree(new_triggers.patterns);
2a0e047e
JB		 9238 if (new_triggers.tcp && new_triggers.tcp->sock)
9239 sock_release(new_triggers.tcp->sock);
9240 kfree(new_triggers.tcp);
ff1b6e69
JB		 9241 return err;
9242}
dfb89c56 9243#endif
ff1b6e69 9244
be29b99a
AK		 9245static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9246 struct cfg80211_registered_device *rdev)
9247{
9248 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9249 int i, j, pat_len;
9250 struct cfg80211_coalesce_rules *rule;
9251
9252 if (!rdev->coalesce->n_rules)
9253 return 0;
9254
9255 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9256 if (!nl_rules)
9257 return -ENOBUFS;
9258
9259 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9260 nl_rule = nla_nest_start(msg, i + 1);
9261 if (!nl_rule)
9262 return -ENOBUFS;
9263
9264 rule = &rdev->coalesce->rules[i];
9265 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9266 rule->delay))
9267 return -ENOBUFS;
9268
9269 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9270 rule->condition))
9271 return -ENOBUFS;
9272
9273 nl_pats = nla_nest_start(msg,
9274 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9275 if (!nl_pats)
9276 return -ENOBUFS;
9277
9278 for (j = 0; j < rule->n_patterns; j++) {
9279 nl_pat = nla_nest_start(msg, j + 1);
9280 if (!nl_pat)
9281 return -ENOBUFS;
9282 pat_len = rule->patterns[j].pattern_len;
9283 if (nla_put(msg, NL80211_PKTPAT_MASK,
9284 DIV_ROUND_UP(pat_len, 8),
9285 rule->patterns[j].mask) ||
9286 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9287 rule->patterns[j].pattern) ||
9288 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9289 rule->patterns[j].pkt_offset))
9290 return -ENOBUFS;
9291 nla_nest_end(msg, nl_pat);
9292 }
9293 nla_nest_end(msg, nl_pats);
9294 nla_nest_end(msg, nl_rule);
9295 }
9296 nla_nest_end(msg, nl_rules);
9297
9298 return 0;
9299}
9300
9301static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9302{
9303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9304 struct sk_buff *msg;
9305 void *hdr;
9306
9307 if (!rdev->wiphy.coalesce)
9308 return -EOPNOTSUPP;
9309
9310 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9311 if (!msg)
9312 return -ENOMEM;
9313
9314 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9315 NL80211_CMD_GET_COALESCE);
9316 if (!hdr)
9317 goto nla_put_failure;
9318
9319 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9320 goto nla_put_failure;
9321
9322 genlmsg_end(msg, hdr);
9323 return genlmsg_reply(msg, info);
9324
9325nla_put_failure:
9326 nlmsg_free(msg);
9327 return -ENOBUFS;
9328}
9329
9330void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9331{
9332 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9333 int i, j;
9334 struct cfg80211_coalesce_rules *rule;
9335
9336 if (!coalesce)
9337 return;
9338
9339 for (i = 0; i < coalesce->n_rules; i++) {
9340 rule = &coalesce->rules[i];
9341 for (j = 0; j < rule->n_patterns; j++)
9342 kfree(rule->patterns[j].mask);
9343 kfree(rule->patterns);
9344 }
9345 kfree(coalesce->rules);
9346 kfree(coalesce);
9347 rdev->coalesce = NULL;
9348}
9349
9350static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9351 struct nlattr *rule,
9352 struct cfg80211_coalesce_rules *new_rule)
9353{
9354 int err, i;
9355 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9356 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9357 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9358 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9359
9360 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9361 nla_len(rule), nl80211_coalesce_policy);
9362 if (err)
9363 return err;
9364
9365 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9366 new_rule->delay =
9367 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9368 if (new_rule->delay > coalesce->max_delay)
9369 return -EINVAL;
9370
9371 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9372 new_rule->condition =
9373 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9374 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9375 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9376 return -EINVAL;
9377
9378 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9379 return -EINVAL;
9380
9381 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9382 rem)
9383 n_patterns++;
9384 if (n_patterns > coalesce->n_patterns)
9385 return -EINVAL;
9386
9387 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9388 GFP_KERNEL);
9389 if (!new_rule->patterns)
9390 return -ENOMEM;
9391
9392 new_rule->n_patterns = n_patterns;
9393 i = 0;
9394
9395 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9396 rem) {
922bd80f
JB		 9397 u8 *mask_pat;
9398
be29b99a
AK		 9399 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9400 nla_len(pat), NULL);
9401 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9402 !pat_tb[NL80211_PKTPAT_PATTERN])
9403 return -EINVAL;
9404 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9405 mask_len = DIV_ROUND_UP(pat_len, 8);
9406 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9407 return -EINVAL;
9408 if (pat_len > coalesce->pattern_max_len ||
9409 pat_len < coalesce->pattern_min_len)
9410 return -EINVAL;
9411
9412 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9413 pkt_offset = 0;
9414 else
9415 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9416 if (pkt_offset > coalesce->max_pkt_offset)
9417 return -EINVAL;
9418 new_rule->patterns[i].pkt_offset = pkt_offset;
9419
922bd80f
JB		 9420 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9421 if (!mask_pat)
be29b99a 9422 return -ENOMEM;
922bd80f
JB		 9423
9424 new_rule->patterns[i].mask = mask_pat;
9425 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9426 mask_len);
9427
9428 mask_pat += mask_len;
9429 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9430 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9431 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9432 pat_len);
be29b99a
AK		 9433 i++;
9434 }
9435
9436 return 0;
9437}
9438
9439static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9440{
9441 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9442 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9443 struct cfg80211_coalesce new_coalesce = {};
9444 struct cfg80211_coalesce *n_coalesce;
9445 int err, rem_rule, n_rules = 0, i, j;
9446 struct nlattr *rule;
9447 struct cfg80211_coalesce_rules *tmp_rule;
9448
9449 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9450 return -EOPNOTSUPP;
9451
9452 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9453 cfg80211_rdev_free_coalesce(rdev);
9454 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9455 return 0;
9456 }
9457
9458 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9459 rem_rule)
9460 n_rules++;
9461 if (n_rules > coalesce->n_rules)
9462 return -EINVAL;
9463
9464 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9465 GFP_KERNEL);
9466 if (!new_coalesce.rules)
9467 return -ENOMEM;
9468
9469 new_coalesce.n_rules = n_rules;
9470 i = 0;
9471
9472 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9473 rem_rule) {
9474 err = nl80211_parse_coalesce_rule(rdev, rule,
9475 &new_coalesce.rules[i]);
9476 if (err)
9477 goto error;
9478
9479 i++;
9480 }
9481
9482 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9483 if (err)
9484 goto error;
9485
9486 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9487 if (!n_coalesce) {
9488 err = -ENOMEM;
9489 goto error;
9490 }
9491 cfg80211_rdev_free_coalesce(rdev);
9492 rdev->coalesce = n_coalesce;
9493
9494 return 0;
9495error:
9496 for (i = 0; i < new_coalesce.n_rules; i++) {
9497 tmp_rule = &new_coalesce.rules[i];
9498 for (j = 0; j < tmp_rule->n_patterns; j++)
9499 kfree(tmp_rule->patterns[j].mask);
9500 kfree(tmp_rule->patterns);
9501 }
9502 kfree(new_coalesce.rules);
9503
9504 return err;
9505}
9506
e5497d76
JB		 9507static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9508{
9509 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9510 struct net_device *dev = info->user_ptr[1];
9511 struct wireless_dev *wdev = dev->ieee80211_ptr;
9512 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9513 struct cfg80211_gtk_rekey_data rekey_data;
9514 int err;
9515
9516 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9517 return -EINVAL;
9518
9519 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9520 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9521 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9522 nl80211_rekey_policy);
9523 if (err)
9524 return err;
9525
9526 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9527 return -ERANGE;
9528 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9529 return -ERANGE;
9530 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9531 return -ERANGE;
9532
78f686ca
JB		 9533 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9534 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9535 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9536
9537 wdev_lock(wdev);
9538 if (!wdev->current_bss) {
9539 err = -ENOTCONN;
9540 goto out;
9541 }
9542
9543 if (!rdev->ops->set_rekey_data) {
9544 err = -EOPNOTSUPP;
9545 goto out;
9546 }
9547
e35e4d28 9548 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9549 out:
9550 wdev_unlock(wdev);
9551 return err;
9552}
9553
28946da7
JB		 9554static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9555 struct genl_info *info)
9556{
9557 struct net_device *dev = info->user_ptr[1];
9558 struct wireless_dev *wdev = dev->ieee80211_ptr;
9559
9560 if (wdev->iftype != NL80211_IFTYPE_AP &&
9561 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9562 return -EINVAL;
9563
15e47304 9564 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9565 return -EBUSY;
9566
15e47304 9567 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9568 return 0;
9569}
9570
7f6cf311
JB		 9571static int nl80211_probe_client(struct sk_buff *skb,
9572 struct genl_info *info)
9573{
9574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9575 struct net_device *dev = info->user_ptr[1];
9576 struct wireless_dev *wdev = dev->ieee80211_ptr;
9577 struct sk_buff *msg;
9578 void *hdr;
9579 const u8 *addr;
9580 u64 cookie;
9581 int err;
9582
9583 if (wdev->iftype != NL80211_IFTYPE_AP &&
9584 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9585 return -EOPNOTSUPP;
9586
9587 if (!info->attrs[NL80211_ATTR_MAC])
9588 return -EINVAL;
9589
9590 if (!rdev->ops->probe_client)
9591 return -EOPNOTSUPP;
9592
9593 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9594 if (!msg)
9595 return -ENOMEM;
9596
15e47304 9597 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9598 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9599 if (!hdr) {
9600 err = -ENOBUFS;
7f6cf311
JB		 9601 goto free_msg;
9602 }
9603
9604 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9605
e35e4d28 9606 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9607 if (err)
9608 goto free_msg;
9609
9360ffd1
DM		 9610 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9611 goto nla_put_failure;
7f6cf311
JB		 9612
9613 genlmsg_end(msg, hdr);
9614
9615 return genlmsg_reply(msg, info);
9616
9617 nla_put_failure:
9618 err = -ENOBUFS;
9619 free_msg:
9620 nlmsg_free(msg);
9621 return err;
9622}
9623
5e760230
JB		 9624static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9625{
9626 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9627 struct cfg80211_beacon_registration *reg, *nreg;
9628 int rv;
5e760230
JB		 9629
9630 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9631 return -EOPNOTSUPP;
9632
37c73b5f
BG		 9633 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9634 if (!nreg)
9635 return -ENOMEM;
9636
9637 /* First, check if already registered. */
9638 spin_lock_bh(&rdev->beacon_registrations_lock);
9639 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9640 if (reg->nlportid == info->snd_portid) {
9641 rv = -EALREADY;
9642 goto out_err;
9643 }
9644 }
9645 /* Add it to the list */
9646 nreg->nlportid = info->snd_portid;
9647 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9648
37c73b5f 9649 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9650
9651 return 0;
37c73b5f
BG		 9652out_err:
9653 spin_unlock_bh(&rdev->beacon_registrations_lock);
9654 kfree(nreg);
9655 return rv;
5e760230
JB		 9656}
9657
98104fde
JB		 9658static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9659{
9660 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9661 struct wireless_dev *wdev = info->user_ptr[1];
9662 int err;
9663
9664 if (!rdev->ops->start_p2p_device)
9665 return -EOPNOTSUPP;
9666
9667 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9668 return -EOPNOTSUPP;
9669
9670 if (wdev->p2p_started)
9671 return 0;
9672
b6a55015
LC		 9673 if (rfkill_blocked(rdev->rfkill))
9674 return -ERFKILL;
98104fde 9675
eeb126e9 9676 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9677 if (err)
9678 return err;
9679
9680 wdev->p2p_started = true;
98104fde 9681 rdev->opencount++;
98104fde
JB		 9682
9683 return 0;
9684}
9685
9686static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9687{
9688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9689 struct wireless_dev *wdev = info->user_ptr[1];
9690
9691 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9692 return -EOPNOTSUPP;
9693
9694 if (!rdev->ops->stop_p2p_device)
9695 return -EOPNOTSUPP;
9696
f9f47529 9697 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9698
9699 return 0;
9700}
9701
3713b4e3
JB		 9702static int nl80211_get_protocol_features(struct sk_buff *skb,
9703 struct genl_info *info)
9704{
9705 void *hdr;
9706 struct sk_buff *msg;
9707
9708 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9709 if (!msg)
9710 return -ENOMEM;
9711
9712 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9713 NL80211_CMD_GET_PROTOCOL_FEATURES);
9714 if (!hdr)
9715 goto nla_put_failure;
9716
9717 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9718 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9719 goto nla_put_failure;
9720
9721 genlmsg_end(msg, hdr);
9722 return genlmsg_reply(msg, info);
9723
9724 nla_put_failure:
9725 kfree_skb(msg);
9726 return -ENOBUFS;
9727}
9728
355199e0
JM		 9729static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9730{
9731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9732 struct cfg80211_update_ft_ies_params ft_params;
9733 struct net_device *dev = info->user_ptr[1];
9734
9735 if (!rdev->ops->update_ft_ies)
9736 return -EOPNOTSUPP;
9737
9738 if (!info->attrs[NL80211_ATTR_MDID] ||
9739 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9740 return -EINVAL;
9741
9742 memset(&ft_params, 0, sizeof(ft_params));
9743 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9744 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9745 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9746
9747 return rdev_update_ft_ies(rdev, dev, &ft_params);
9748}
9749
5de17984
AS		 9750static int nl80211_crit_protocol_start(struct sk_buff *skb,
9751 struct genl_info *info)
9752{
9753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9754 struct wireless_dev *wdev = info->user_ptr[1];
9755 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9756 u16 duration;
9757 int ret;
9758
9759 if (!rdev->ops->crit_proto_start)
9760 return -EOPNOTSUPP;
9761
9762 if (WARN_ON(!rdev->ops->crit_proto_stop))
9763 return -EINVAL;
9764
9765 if (rdev->crit_proto_nlportid)
9766 return -EBUSY;
9767
9768 /* determine protocol if provided */
9769 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9770 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9771
9772 if (proto >= NUM_NL80211_CRIT_PROTO)
9773 return -EINVAL;
9774
9775 /* timeout must be provided */
9776 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9777 return -EINVAL;
9778
9779 duration =
9780 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9781
9782 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9783 return -ERANGE;
9784
9785 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9786 if (!ret)
9787 rdev->crit_proto_nlportid = info->snd_portid;
9788
9789 return ret;
9790}
9791
9792static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9793 struct genl_info *info)
9794{
9795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9796 struct wireless_dev *wdev = info->user_ptr[1];
9797
9798 if (!rdev->ops->crit_proto_stop)
9799 return -EOPNOTSUPP;
9800
9801 if (rdev->crit_proto_nlportid) {
9802 rdev->crit_proto_nlportid = 0;
9803 rdev_crit_proto_stop(rdev, wdev);
9804 }
9805 return 0;
9806}
9807
ad7e718c
JB		 9808static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9809{
9810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9811 struct wireless_dev *wdev =
9812 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9813 int i, err;
9814 u32 vid, subcmd;
9815
9816 if (!rdev->wiphy.vendor_commands)
9817 return -EOPNOTSUPP;
9818
9819 if (IS_ERR(wdev)) {
9820 err = PTR_ERR(wdev);
9821 if (err != -EINVAL)
9822 return err;
9823 wdev = NULL;
9824 } else if (wdev->wiphy != &rdev->wiphy) {
9825 return -EINVAL;
9826 }
9827
9828 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9829 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9830 return -EINVAL;
9831
9832 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9833 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9834 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9835 const struct wiphy_vendor_command *vcmd;
9836 void *data = NULL;
9837 int len = 0;
9838
9839 vcmd = &rdev->wiphy.vendor_commands[i];
9840
9841 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9842 continue;
9843
9844 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9845 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9846 if (!wdev)
9847 return -EINVAL;
9848 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9849 !wdev->netdev)
9850 return -EINVAL;
9851
9852 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9853 if (wdev->netdev &&
9854 !netif_running(wdev->netdev))
9855 return -ENETDOWN;
9856 if (!wdev->netdev && !wdev->p2p_started)
9857 return -ENETDOWN;
9858 }
9859 } else {
9860 wdev = NULL;
9861 }
9862
9863 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9864 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9865 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9866 }
9867
9868 rdev->cur_cmd_info = info;
9869 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9870 data, len);
9871 rdev->cur_cmd_info = NULL;
9872 return err;
9873 }
9874
9875 return -EOPNOTSUPP;
9876}
9877
9878struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9879 enum nl80211_commands cmd,
9880 enum nl80211_attrs attr,
9881 int approxlen)
9882{
f26cbf40 9883 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9884
9885 if (WARN_ON(!rdev->cur_cmd_info))
9886 return NULL;
9887
9888 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9889 rdev->cur_cmd_info->snd_portid,
9890 rdev->cur_cmd_info->snd_seq,
567ffc35 9891 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9892}
9893EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9894
9895int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9896{
9897 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9898 void *hdr = ((void **)skb->cb)[1];
9899 struct nlattr *data = ((void **)skb->cb)[2];
9900
bd8c78e7
JB		 9901 /* clear CB data for netlink core to own from now on */
9902 memset(skb->cb, 0, sizeof(skb->cb));
9903
ad7e718c
JB		 9904 if (WARN_ON(!rdev->cur_cmd_info)) {
9905 kfree_skb(skb);
9906 return -EINVAL;
9907 }
9908
9909 nla_nest_end(skb, data);
9910 genlmsg_end(skb, hdr);
9911 return genlmsg_reply(skb, rdev->cur_cmd_info);
9912}
9913EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9914
9915
fa9ffc74
KP		 9916static int nl80211_set_qos_map(struct sk_buff *skb,
9917 struct genl_info *info)
9918{
9919 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9920 struct cfg80211_qos_map *qos_map = NULL;
9921 struct net_device *dev = info->user_ptr[1];
9922 u8 *pos, len, num_des, des_len, des;
9923 int ret;
9924
9925 if (!rdev->ops->set_qos_map)
9926 return -EOPNOTSUPP;
9927
9928 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9929 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9930 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9931
9932 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9933 len > IEEE80211_QOS_MAP_LEN_MAX)
9934 return -EINVAL;
9935
9936 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9937 if (!qos_map)
9938 return -ENOMEM;
9939
9940 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9941 if (num_des) {
9942 des_len = num_des *
9943 sizeof(struct cfg80211_dscp_exception);
9944 memcpy(qos_map->dscp_exception, pos, des_len);
9945 qos_map->num_des = num_des;
9946 for (des = 0; des < num_des; des++) {
9947 if (qos_map->dscp_exception[des].up > 7) {
9948 kfree(qos_map);
9949 return -EINVAL;
9950 }
9951 }
9952 pos += des_len;
9953 }
9954 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9955 }
9956
9957 wdev_lock(dev->ieee80211_ptr);
9958 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9959 if (!ret)
9960 ret = rdev_set_qos_map(rdev, dev, qos_map);
9961 wdev_unlock(dev->ieee80211_ptr);
9962
9963 kfree(qos_map);
9964 return ret;
9965}
9966
960d01ac
JB		 9967static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9968{
9969 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9970 struct net_device *dev = info->user_ptr[1];
9971 struct wireless_dev *wdev = dev->ieee80211_ptr;
9972 const u8 *peer;
9973 u8 tsid, up;
9974 u16 admitted_time = 0;
9975 int err;
9976
723e73ac 9977 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 9978 return -EOPNOTSUPP;
9979
9980 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9981 !info->attrs[NL80211_ATTR_USER_PRIO])
9982 return -EINVAL;
9983
9984 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9985 if (tsid >= IEEE80211_NUM_TIDS)
9986 return -EINVAL;
9987
9988 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9989 if (up >= IEEE80211_NUM_UPS)
9990 return -EINVAL;
9991
9992 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 9993 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 9994 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 9995 * need more attributes for that (e.g. BA session requirement);
9996 * change the WMM adminssion test above to allow both then
960d01ac
JB		 9997 */
9998 return -EINVAL;
9999 }
10000
10001 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10002
10003 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10004 admitted_time =
10005 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10006 if (!admitted_time)
10007 return -EINVAL;
10008 }
10009
10010 wdev_lock(wdev);
10011 switch (wdev->iftype) {
10012 case NL80211_IFTYPE_STATION:
10013 case NL80211_IFTYPE_P2P_CLIENT:
10014 if (wdev->current_bss)
10015 break;
10016 err = -ENOTCONN;
10017 goto out;
10018 default:
10019 err = -EOPNOTSUPP;
10020 goto out;
10021 }
10022
10023 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10024
10025 out:
10026 wdev_unlock(wdev);
10027 return err;
10028}
10029
10030static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10031{
10032 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10033 struct net_device *dev = info->user_ptr[1];
10034 struct wireless_dev *wdev = dev->ieee80211_ptr;
10035 const u8 *peer;
10036 u8 tsid;
10037 int err;
10038
10039 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10040 return -EINVAL;
10041
10042 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10043 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10044
10045 wdev_lock(wdev);
10046 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10047 wdev_unlock(wdev);
10048
10049 return err;
10050}
10051
1057d35e
AN		 10052static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10053 struct genl_info *info)
10054{
10055 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10056 struct net_device *dev = info->user_ptr[1];
10057 struct wireless_dev *wdev = dev->ieee80211_ptr;
10058 struct cfg80211_chan_def chandef = {};
10059 const u8 *addr;
10060 u8 oper_class;
10061 int err;
10062
10063 if (!rdev->ops->tdls_channel_switch ||
10064 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10065 return -EOPNOTSUPP;
10066
10067 switch (dev->ieee80211_ptr->iftype) {
10068 case NL80211_IFTYPE_STATION:
10069 case NL80211_IFTYPE_P2P_CLIENT:
10070 break;
10071 default:
10072 return -EOPNOTSUPP;
10073 }
10074
10075 if (!info->attrs[NL80211_ATTR_MAC] ||
10076 !info->attrs[NL80211_ATTR_OPER_CLASS])
10077 return -EINVAL;
10078
10079 err = nl80211_parse_chandef(rdev, info, &chandef);
10080 if (err)
10081 return err;
10082
10083 /*
10084 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10085 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10086 * specification is not defined for them.
10087 */
10088 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10089 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10090 chandef.width != NL80211_CHAN_WIDTH_20)
10091 return -EINVAL;
10092
10093 /* we will be active on the TDLS link */
10094 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
10095 return -EINVAL;
10096
10097 /* don't allow switching to DFS channels */
10098 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10099 return -EINVAL;
10100
10101 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10102 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10103
10104 wdev_lock(wdev);
10105 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10106 wdev_unlock(wdev);
10107
10108 return err;
10109}
10110
10111static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10112 struct genl_info *info)
10113{
10114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10115 struct net_device *dev = info->user_ptr[1];
10116 struct wireless_dev *wdev = dev->ieee80211_ptr;
10117 const u8 *addr;
10118
10119 if (!rdev->ops->tdls_channel_switch ||
10120 !rdev->ops->tdls_cancel_channel_switch ||
10121 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10122 return -EOPNOTSUPP;
10123
10124 switch (dev->ieee80211_ptr->iftype) {
10125 case NL80211_IFTYPE_STATION:
10126 case NL80211_IFTYPE_P2P_CLIENT:
10127 break;
10128 default:
10129 return -EOPNOTSUPP;
10130 }
10131
10132 if (!info->attrs[NL80211_ATTR_MAC])
10133 return -EINVAL;
10134
10135 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10136
10137 wdev_lock(wdev);
10138 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10139 wdev_unlock(wdev);
10140
10141 return 0;
10142}
10143
4c476991
JB		 10144#define NL80211_FLAG_NEED_WIPHY 0x01
10145#define NL80211_FLAG_NEED_NETDEV 0x02
10146#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10147#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10148#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10149 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10150#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10151/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10152#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10153 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10154#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10155
f84f771d 10156static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10157 struct genl_info *info)
10158{
10159 struct cfg80211_registered_device *rdev;
89a54e48 10160 struct wireless_dev *wdev;
4c476991 10161 struct net_device *dev;
4c476991
JB		 10162 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10163
10164 if (rtnl)
10165 rtnl_lock();
10166
10167 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10168 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10169 if (IS_ERR(rdev)) {
10170 if (rtnl)
10171 rtnl_unlock();
10172 return PTR_ERR(rdev);
10173 }
10174 info->user_ptr[0] = rdev;
1bf614ef
JB		 10175 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10176 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10177 ASSERT_RTNL();
10178
89a54e48
JB		 10179 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10180 info->attrs);
10181 if (IS_ERR(wdev)) {
4c476991
JB		 10182 if (rtnl)
10183 rtnl_unlock();
89a54e48 10184 return PTR_ERR(wdev);
4c476991 10185 }
89a54e48 10186
89a54e48 10187 dev = wdev->netdev;
f26cbf40 10188 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10189
1bf614ef
JB		 10190 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10191 if (!dev) {
1bf614ef
JB		 10192 if (rtnl)
10193 rtnl_unlock();
10194 return -EINVAL;
10195 }
10196
10197 info->user_ptr[1] = dev;
10198 } else {
10199 info->user_ptr[1] = wdev;
41265714 10200 }
1bf614ef
JB		 10201
10202 if (dev) {
10203 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10204 !netif_running(dev)) {
1bf614ef
JB		 10205 if (rtnl)
10206 rtnl_unlock();
10207 return -ENETDOWN;
10208 }
10209
10210 dev_hold(dev);
98104fde
JB		 10211 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10212 if (!wdev->p2p_started) {
98104fde
JB		 10213 if (rtnl)
10214 rtnl_unlock();
10215 return -ENETDOWN;
10216 }
41265714 10217 }
89a54e48 10218
4c476991 10219 info->user_ptr[0] = rdev;
4c476991
JB		 10220 }
10221
10222 return 0;
10223}
10224
f84f771d 10225static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10226 struct genl_info *info)
10227{
1bf614ef
JB		 10228 if (info->user_ptr[1]) {
10229 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10230 struct wireless_dev *wdev = info->user_ptr[1];
10231
10232 if (wdev->netdev)
10233 dev_put(wdev->netdev);
10234 } else {
10235 dev_put(info->user_ptr[1]);
10236 }
10237 }
5393b917 10238
4c476991
JB		 10239 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10240 rtnl_unlock();
5393b917
JB		 10241
10242 /* If needed, clear the netlink message payload from the SKB
10243 * as it might contain key data that shouldn't stick around on
10244 * the heap after the SKB is freed. The netlink message header
10245 * is still needed for further processing, so leave it intact.
10246 */
10247 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10248 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10249
10250 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10251 }
4c476991
JB		 10252}
10253
4534de83 10254static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10255 {
10256 .cmd = NL80211_CMD_GET_WIPHY,
10257 .doit = nl80211_get_wiphy,
10258 .dumpit = nl80211_dump_wiphy,
86e8cf98 10259 .done = nl80211_dump_wiphy_done,
55682965
JB		 10260 .policy = nl80211_policy,
10261 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10262 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10263 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10264 },
10265 {
10266 .cmd = NL80211_CMD_SET_WIPHY,
10267 .doit = nl80211_set_wiphy,
10268 .policy = nl80211_policy,
10269 .flags = GENL_ADMIN_PERM,
4c476991 10270 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10271 },
10272 {
10273 .cmd = NL80211_CMD_GET_INTERFACE,
10274 .doit = nl80211_get_interface,
10275 .dumpit = nl80211_dump_interface,
10276 .policy = nl80211_policy,
10277 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10278 .internal_flags = NL80211_FLAG_NEED_WDEV |
10279 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10280 },
10281 {
10282 .cmd = NL80211_CMD_SET_INTERFACE,
10283 .doit = nl80211_set_interface,
10284 .policy = nl80211_policy,
10285 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10286 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10287 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10288 },
10289 {
10290 .cmd = NL80211_CMD_NEW_INTERFACE,
10291 .doit = nl80211_new_interface,
10292 .policy = nl80211_policy,
10293 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10294 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10295 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10296 },
10297 {
10298 .cmd = NL80211_CMD_DEL_INTERFACE,
10299 .doit = nl80211_del_interface,
10300 .policy = nl80211_policy,
41ade00f 10301 .flags = GENL_ADMIN_PERM,
84efbb84 10302 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10303 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10304 },
10305 {
10306 .cmd = NL80211_CMD_GET_KEY,
10307 .doit = nl80211_get_key,
10308 .policy = nl80211_policy,
10309 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10310 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10311 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10312 },
10313 {
10314 .cmd = NL80211_CMD_SET_KEY,
10315 .doit = nl80211_set_key,
10316 .policy = nl80211_policy,
10317 .flags = GENL_ADMIN_PERM,
41265714 10318 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10319 NL80211_FLAG_NEED_RTNL |
10320 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10321 },
10322 {
10323 .cmd = NL80211_CMD_NEW_KEY,
10324 .doit = nl80211_new_key,
10325 .policy = nl80211_policy,
10326 .flags = GENL_ADMIN_PERM,
41265714 10327 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10328 NL80211_FLAG_NEED_RTNL |
10329 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10330 },
10331 {
10332 .cmd = NL80211_CMD_DEL_KEY,
10333 .doit = nl80211_del_key,
10334 .policy = nl80211_policy,
55682965 10335 .flags = GENL_ADMIN_PERM,
41265714 10336 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10337 NL80211_FLAG_NEED_RTNL,
55682965 10338 },
ed1b6cc7
JB		 10339 {
10340 .cmd = NL80211_CMD_SET_BEACON,
10341 .policy = nl80211_policy,
10342 .flags = GENL_ADMIN_PERM,
8860020e 10343 .doit = nl80211_set_beacon,
2b5f8b0b 10344 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10345 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10346 },
10347 {
8860020e 10348 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10349 .policy = nl80211_policy,
10350 .flags = GENL_ADMIN_PERM,
8860020e 10351 .doit = nl80211_start_ap,
2b5f8b0b 10352 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10353 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10354 },
10355 {
8860020e 10356 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10357 .policy = nl80211_policy,
10358 .flags = GENL_ADMIN_PERM,
8860020e 10359 .doit = nl80211_stop_ap,
2b5f8b0b 10360 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10361 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10362 },
5727ef1b
JB		 10363 {
10364 .cmd = NL80211_CMD_GET_STATION,
10365 .doit = nl80211_get_station,
2ec600d6 10366 .dumpit = nl80211_dump_station,
5727ef1b 10367 .policy = nl80211_policy,
4c476991
JB		 10368 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10369 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10370 },
10371 {
10372 .cmd = NL80211_CMD_SET_STATION,
10373 .doit = nl80211_set_station,
10374 .policy = nl80211_policy,
10375 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10376 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10377 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10378 },
10379 {
10380 .cmd = NL80211_CMD_NEW_STATION,
10381 .doit = nl80211_new_station,
10382 .policy = nl80211_policy,
10383 .flags = GENL_ADMIN_PERM,
41265714 10384 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10385 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10386 },
10387 {
10388 .cmd = NL80211_CMD_DEL_STATION,
10389 .doit = nl80211_del_station,
10390 .policy = nl80211_policy,
2ec600d6 10391 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10393 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10394 },
10395 {
10396 .cmd = NL80211_CMD_GET_MPATH,
10397 .doit = nl80211_get_mpath,
10398 .dumpit = nl80211_dump_mpath,
10399 .policy = nl80211_policy,
10400 .flags = GENL_ADMIN_PERM,
41265714 10401 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10402 NL80211_FLAG_NEED_RTNL,
2ec600d6 10403 },
66be7d2b
HR		 10404 {
10405 .cmd = NL80211_CMD_GET_MPP,
10406 .doit = nl80211_get_mpp,
10407 .dumpit = nl80211_dump_mpp,
10408 .policy = nl80211_policy,
10409 .flags = GENL_ADMIN_PERM,
10410 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10411 NL80211_FLAG_NEED_RTNL,
10412 },
2ec600d6
LCC		 10413 {
10414 .cmd = NL80211_CMD_SET_MPATH,
10415 .doit = nl80211_set_mpath,
10416 .policy = nl80211_policy,
10417 .flags = GENL_ADMIN_PERM,
41265714 10418 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10419 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10420 },
10421 {
10422 .cmd = NL80211_CMD_NEW_MPATH,
10423 .doit = nl80211_new_mpath,
10424 .policy = nl80211_policy,
10425 .flags = GENL_ADMIN_PERM,
41265714 10426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10427 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10428 },
10429 {
10430 .cmd = NL80211_CMD_DEL_MPATH,
10431 .doit = nl80211_del_mpath,
10432 .policy = nl80211_policy,
9f1ba906 10433 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10434 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10435 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10436 },
10437 {
10438 .cmd = NL80211_CMD_SET_BSS,
10439 .doit = nl80211_set_bss,
10440 .policy = nl80211_policy,
b2e1b302 10441 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10443 NL80211_FLAG_NEED_RTNL,
b2e1b302 10444 },
f130347c
LR		 10445 {
10446 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10447 .doit = nl80211_get_reg_do,
10448 .dumpit = nl80211_get_reg_dump,
f130347c 10449 .policy = nl80211_policy,
5fe231e8 10450 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10451 /* can be retrieved by unprivileged users */
10452 },
b2e1b302
LR		 10453 {
10454 .cmd = NL80211_CMD_SET_REG,
10455 .doit = nl80211_set_reg,
10456 .policy = nl80211_policy,
10457 .flags = GENL_ADMIN_PERM,
5fe231e8 10458 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10459 },
10460 {
10461 .cmd = NL80211_CMD_REQ_SET_REG,
10462 .doit = nl80211_req_set_reg,
10463 .policy = nl80211_policy,
93da9cc1 10464 .flags = GENL_ADMIN_PERM,
10465 },
10466 {
24bdd9f4
JC		 10467 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10468 .doit = nl80211_get_mesh_config,
93da9cc1 10469 .policy = nl80211_policy,
10470 /* can be retrieved by unprivileged users */
2b5f8b0b 10471 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10472 NL80211_FLAG_NEED_RTNL,
93da9cc1 10473 },
10474 {
24bdd9f4
JC		 10475 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10476 .doit = nl80211_update_mesh_config,
93da9cc1 10477 .policy = nl80211_policy,
9aed3cc1 10478 .flags = GENL_ADMIN_PERM,
29cbe68c 10479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10480 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10481 },
2a519311
JB		 10482 {
10483 .cmd = NL80211_CMD_TRIGGER_SCAN,
10484 .doit = nl80211_trigger_scan,
10485 .policy = nl80211_policy,
10486 .flags = GENL_ADMIN_PERM,
fd014284 10487 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10488 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10489 },
10490 {
10491 .cmd = NL80211_CMD_GET_SCAN,
10492 .policy = nl80211_policy,
10493 .dumpit = nl80211_dump_scan,
10494 },
807f8a8c
LC		 10495 {
10496 .cmd = NL80211_CMD_START_SCHED_SCAN,
10497 .doit = nl80211_start_sched_scan,
10498 .policy = nl80211_policy,
10499 .flags = GENL_ADMIN_PERM,
10500 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10501 NL80211_FLAG_NEED_RTNL,
10502 },
10503 {
10504 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10505 .doit = nl80211_stop_sched_scan,
10506 .policy = nl80211_policy,
10507 .flags = GENL_ADMIN_PERM,
10508 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10509 NL80211_FLAG_NEED_RTNL,
10510 },
636a5d36
JM		 10511 {
10512 .cmd = NL80211_CMD_AUTHENTICATE,
10513 .doit = nl80211_authenticate,
10514 .policy = nl80211_policy,
10515 .flags = GENL_ADMIN_PERM,
41265714 10516 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10517 NL80211_FLAG_NEED_RTNL |
10518 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10519 },
10520 {
10521 .cmd = NL80211_CMD_ASSOCIATE,
10522 .doit = nl80211_associate,
10523 .policy = nl80211_policy,
10524 .flags = GENL_ADMIN_PERM,
41265714 10525 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10526 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10527 },
10528 {
10529 .cmd = NL80211_CMD_DEAUTHENTICATE,
10530 .doit = nl80211_deauthenticate,
10531 .policy = nl80211_policy,
10532 .flags = GENL_ADMIN_PERM,
41265714 10533 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10534 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10535 },
10536 {
10537 .cmd = NL80211_CMD_DISASSOCIATE,
10538 .doit = nl80211_disassociate,
10539 .policy = nl80211_policy,
10540 .flags = GENL_ADMIN_PERM,
41265714 10541 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10542 NL80211_FLAG_NEED_RTNL,
636a5d36 10543 },
04a773ad
JB		 10544 {
10545 .cmd = NL80211_CMD_JOIN_IBSS,
10546 .doit = nl80211_join_ibss,
10547 .policy = nl80211_policy,
10548 .flags = GENL_ADMIN_PERM,
41265714 10549 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10550 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10551 },
10552 {
10553 .cmd = NL80211_CMD_LEAVE_IBSS,
10554 .doit = nl80211_leave_ibss,
10555 .policy = nl80211_policy,
10556 .flags = GENL_ADMIN_PERM,
41265714 10557 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10558 NL80211_FLAG_NEED_RTNL,
04a773ad 10559 },
aff89a9b
JB		 10560#ifdef CONFIG_NL80211_TESTMODE
10561 {
10562 .cmd = NL80211_CMD_TESTMODE,
10563 .doit = nl80211_testmode_do,
71063f0e 10564 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10565 .policy = nl80211_policy,
10566 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10567 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10568 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10569 },
10570#endif
b23aa676
SO		 10571 {
10572 .cmd = NL80211_CMD_CONNECT,
10573 .doit = nl80211_connect,
10574 .policy = nl80211_policy,
10575 .flags = GENL_ADMIN_PERM,
41265714 10576 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10577 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10578 },
10579 {
10580 .cmd = NL80211_CMD_DISCONNECT,
10581 .doit = nl80211_disconnect,
10582 .policy = nl80211_policy,
10583 .flags = GENL_ADMIN_PERM,
41265714 10584 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10585 NL80211_FLAG_NEED_RTNL,
b23aa676 10586 },
463d0183
JB		 10587 {
10588 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10589 .doit = nl80211_wiphy_netns,
10590 .policy = nl80211_policy,
10591 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10592 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10593 NL80211_FLAG_NEED_RTNL,
463d0183 10594 },
61fa713c
HS		 10595 {
10596 .cmd = NL80211_CMD_GET_SURVEY,
10597 .policy = nl80211_policy,
10598 .dumpit = nl80211_dump_survey,
10599 },
67fbb16b
SO		 10600 {
10601 .cmd = NL80211_CMD_SET_PMKSA,
10602 .doit = nl80211_setdel_pmksa,
10603 .policy = nl80211_policy,
10604 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10605 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10606 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10607 },
10608 {
10609 .cmd = NL80211_CMD_DEL_PMKSA,
10610 .doit = nl80211_setdel_pmksa,
10611 .policy = nl80211_policy,
10612 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10613 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10614 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10615 },
10616 {
10617 .cmd = NL80211_CMD_FLUSH_PMKSA,
10618 .doit = nl80211_flush_pmksa,
10619 .policy = nl80211_policy,
10620 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10621 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10622 NL80211_FLAG_NEED_RTNL,
67fbb16b 10623 },
9588bbd5
JM		 10624 {
10625 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10626 .doit = nl80211_remain_on_channel,
10627 .policy = nl80211_policy,
10628 .flags = GENL_ADMIN_PERM,
71bbc994 10629 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10630 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10631 },
10632 {
10633 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10634 .doit = nl80211_cancel_remain_on_channel,
10635 .policy = nl80211_policy,
10636 .flags = GENL_ADMIN_PERM,
71bbc994 10637 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10638 NL80211_FLAG_NEED_RTNL,
9588bbd5 10639 },
13ae75b1
JM		 10640 {
10641 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10642 .doit = nl80211_set_tx_bitrate_mask,
10643 .policy = nl80211_policy,
10644 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10645 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10646 NL80211_FLAG_NEED_RTNL,
13ae75b1 10647 },
026331c4 10648 {
2e161f78
JB		 10649 .cmd = NL80211_CMD_REGISTER_FRAME,
10650 .doit = nl80211_register_mgmt,
026331c4
JM		 10651 .policy = nl80211_policy,
10652 .flags = GENL_ADMIN_PERM,
71bbc994 10653 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10654 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10655 },
10656 {
2e161f78
JB		 10657 .cmd = NL80211_CMD_FRAME,
10658 .doit = nl80211_tx_mgmt,
026331c4 10659 .policy = nl80211_policy,
f7ca38df 10660 .flags = GENL_ADMIN_PERM,
71bbc994 10661 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10662 NL80211_FLAG_NEED_RTNL,
10663 },
10664 {
10665 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10666 .doit = nl80211_tx_mgmt_cancel_wait,
10667 .policy = nl80211_policy,
026331c4 10668 .flags = GENL_ADMIN_PERM,
71bbc994 10669 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10670 NL80211_FLAG_NEED_RTNL,
026331c4 10671 },
ffb9eb3d
KV		 10672 {
10673 .cmd = NL80211_CMD_SET_POWER_SAVE,
10674 .doit = nl80211_set_power_save,
10675 .policy = nl80211_policy,
10676 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10677 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10678 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10679 },
10680 {
10681 .cmd = NL80211_CMD_GET_POWER_SAVE,
10682 .doit = nl80211_get_power_save,
10683 .policy = nl80211_policy,
10684 /* can be retrieved by unprivileged users */
4c476991
JB		 10685 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10686 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10687 },
d6dc1a38
JO		 10688 {
10689 .cmd = NL80211_CMD_SET_CQM,
10690 .doit = nl80211_set_cqm,
10691 .policy = nl80211_policy,
10692 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10693 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10694 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10695 },
f444de05
JB		 10696 {
10697 .cmd = NL80211_CMD_SET_CHANNEL,
10698 .doit = nl80211_set_channel,
10699 .policy = nl80211_policy,
10700 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10701 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10702 NL80211_FLAG_NEED_RTNL,
f444de05 10703 },
e8347eba
BJ		 10704 {
10705 .cmd = NL80211_CMD_SET_WDS_PEER,
10706 .doit = nl80211_set_wds_peer,
10707 .policy = nl80211_policy,
10708 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10709 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10710 NL80211_FLAG_NEED_RTNL,
e8347eba 10711 },
29cbe68c
JB		 10712 {
10713 .cmd = NL80211_CMD_JOIN_MESH,
10714 .doit = nl80211_join_mesh,
10715 .policy = nl80211_policy,
10716 .flags = GENL_ADMIN_PERM,
10717 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10718 NL80211_FLAG_NEED_RTNL,
10719 },
10720 {
10721 .cmd = NL80211_CMD_LEAVE_MESH,
10722 .doit = nl80211_leave_mesh,
10723 .policy = nl80211_policy,
10724 .flags = GENL_ADMIN_PERM,
10725 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10726 NL80211_FLAG_NEED_RTNL,
10727 },
6e0bd6c3
RL		 10728 {
10729 .cmd = NL80211_CMD_JOIN_OCB,
10730 .doit = nl80211_join_ocb,
10731 .policy = nl80211_policy,
10732 .flags = GENL_ADMIN_PERM,
10733 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10734 NL80211_FLAG_NEED_RTNL,
10735 },
10736 {
10737 .cmd = NL80211_CMD_LEAVE_OCB,
10738 .doit = nl80211_leave_ocb,
10739 .policy = nl80211_policy,
10740 .flags = GENL_ADMIN_PERM,
10741 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10742 NL80211_FLAG_NEED_RTNL,
10743 },
dfb89c56 10744#ifdef CONFIG_PM
ff1b6e69
JB		 10745 {
10746 .cmd = NL80211_CMD_GET_WOWLAN,
10747 .doit = nl80211_get_wowlan,
10748 .policy = nl80211_policy,
10749 /* can be retrieved by unprivileged users */
10750 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10751 NL80211_FLAG_NEED_RTNL,
10752 },
10753 {
10754 .cmd = NL80211_CMD_SET_WOWLAN,
10755 .doit = nl80211_set_wowlan,
10756 .policy = nl80211_policy,
10757 .flags = GENL_ADMIN_PERM,
10758 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10759 NL80211_FLAG_NEED_RTNL,
10760 },
dfb89c56 10761#endif
e5497d76
JB		 10762 {
10763 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10764 .doit = nl80211_set_rekey_data,
10765 .policy = nl80211_policy,
10766 .flags = GENL_ADMIN_PERM,
10767 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10768 NL80211_FLAG_NEED_RTNL |
10769 NL80211_FLAG_CLEAR_SKB,
e5497d76 10770 },
109086ce
AN		 10771 {
10772 .cmd = NL80211_CMD_TDLS_MGMT,
10773 .doit = nl80211_tdls_mgmt,
10774 .policy = nl80211_policy,
10775 .flags = GENL_ADMIN_PERM,
10776 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10777 NL80211_FLAG_NEED_RTNL,
10778 },
10779 {
10780 .cmd = NL80211_CMD_TDLS_OPER,
10781 .doit = nl80211_tdls_oper,
10782 .policy = nl80211_policy,
10783 .flags = GENL_ADMIN_PERM,
10784 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10785 NL80211_FLAG_NEED_RTNL,
10786 },
28946da7
JB		 10787 {
10788 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10789 .doit = nl80211_register_unexpected_frame,
10790 .policy = nl80211_policy,
10791 .flags = GENL_ADMIN_PERM,
10792 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10793 NL80211_FLAG_NEED_RTNL,
10794 },
7f6cf311
JB		 10795 {
10796 .cmd = NL80211_CMD_PROBE_CLIENT,
10797 .doit = nl80211_probe_client,
10798 .policy = nl80211_policy,
10799 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10801 NL80211_FLAG_NEED_RTNL,
10802 },
5e760230
JB		 10803 {
10804 .cmd = NL80211_CMD_REGISTER_BEACONS,
10805 .doit = nl80211_register_beacons,
10806 .policy = nl80211_policy,
10807 .flags = GENL_ADMIN_PERM,
10808 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10809 NL80211_FLAG_NEED_RTNL,
10810 },
1d9d9213
SW		 10811 {
10812 .cmd = NL80211_CMD_SET_NOACK_MAP,
10813 .doit = nl80211_set_noack_map,
10814 .policy = nl80211_policy,
10815 .flags = GENL_ADMIN_PERM,
10816 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10817 NL80211_FLAG_NEED_RTNL,
10818 },
98104fde
JB		 10819 {
10820 .cmd = NL80211_CMD_START_P2P_DEVICE,
10821 .doit = nl80211_start_p2p_device,
10822 .policy = nl80211_policy,
10823 .flags = GENL_ADMIN_PERM,
10824 .internal_flags = NL80211_FLAG_NEED_WDEV |
10825 NL80211_FLAG_NEED_RTNL,
10826 },
10827 {
10828 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10829 .doit = nl80211_stop_p2p_device,
10830 .policy = nl80211_policy,
10831 .flags = GENL_ADMIN_PERM,
10832 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10833 NL80211_FLAG_NEED_RTNL,
10834 },
f4e583c8
AQ		 10835 {
10836 .cmd = NL80211_CMD_SET_MCAST_RATE,
10837 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10838 .policy = nl80211_policy,
10839 .flags = GENL_ADMIN_PERM,
10840 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10841 NL80211_FLAG_NEED_RTNL,
10842 },
10843 {
10844 .cmd = NL80211_CMD_SET_MAC_ACL,
10845 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10846 .policy = nl80211_policy,
10847 .flags = GENL_ADMIN_PERM,
10848 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10849 NL80211_FLAG_NEED_RTNL,
10850 },
04f39047
SW		 10851 {
10852 .cmd = NL80211_CMD_RADAR_DETECT,
10853 .doit = nl80211_start_radar_detection,
10854 .policy = nl80211_policy,
10855 .flags = GENL_ADMIN_PERM,
10856 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10857 NL80211_FLAG_NEED_RTNL,
10858 },
3713b4e3
JB		 10859 {
10860 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10861 .doit = nl80211_get_protocol_features,
10862 .policy = nl80211_policy,
10863 },
355199e0
JM		 10864 {
10865 .cmd = NL80211_CMD_UPDATE_FT_IES,
10866 .doit = nl80211_update_ft_ies,
10867 .policy = nl80211_policy,
10868 .flags = GENL_ADMIN_PERM,
10869 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10870 NL80211_FLAG_NEED_RTNL,
10871 },
5de17984
AS		 10872 {
10873 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10874 .doit = nl80211_crit_protocol_start,
10875 .policy = nl80211_policy,
10876 .flags = GENL_ADMIN_PERM,
10877 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10878 NL80211_FLAG_NEED_RTNL,
10879 },
10880 {
10881 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10882 .doit = nl80211_crit_protocol_stop,
10883 .policy = nl80211_policy,
10884 .flags = GENL_ADMIN_PERM,
10885 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10886 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10887 },
10888 {
10889 .cmd = NL80211_CMD_GET_COALESCE,
10890 .doit = nl80211_get_coalesce,
10891 .policy = nl80211_policy,
10892 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10893 NL80211_FLAG_NEED_RTNL,
10894 },
10895 {
10896 .cmd = NL80211_CMD_SET_COALESCE,
10897 .doit = nl80211_set_coalesce,
10898 .policy = nl80211_policy,
10899 .flags = GENL_ADMIN_PERM,
10900 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10901 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10902 },
10903 {
10904 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10905 .doit = nl80211_channel_switch,
10906 .policy = nl80211_policy,
10907 .flags = GENL_ADMIN_PERM,
10908 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10909 NL80211_FLAG_NEED_RTNL,
10910 },
ad7e718c
JB		 10911 {
10912 .cmd = NL80211_CMD_VENDOR,
10913 .doit = nl80211_vendor_cmd,
10914 .policy = nl80211_policy,
10915 .flags = GENL_ADMIN_PERM,
10916 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10917 NL80211_FLAG_NEED_RTNL,
10918 },
fa9ffc74
KP		 10919 {
10920 .cmd = NL80211_CMD_SET_QOS_MAP,
10921 .doit = nl80211_set_qos_map,
10922 .policy = nl80211_policy,
10923 .flags = GENL_ADMIN_PERM,
10924 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10925 NL80211_FLAG_NEED_RTNL,
10926 },
960d01ac
JB		 10927 {
10928 .cmd = NL80211_CMD_ADD_TX_TS,
10929 .doit = nl80211_add_tx_ts,
10930 .policy = nl80211_policy,
10931 .flags = GENL_ADMIN_PERM,
10932 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10933 NL80211_FLAG_NEED_RTNL,
10934 },
10935 {
10936 .cmd = NL80211_CMD_DEL_TX_TS,
10937 .doit = nl80211_del_tx_ts,
10938 .policy = nl80211_policy,
10939 .flags = GENL_ADMIN_PERM,
10940 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10941 NL80211_FLAG_NEED_RTNL,
10942 },
1057d35e
AN		 10943 {
10944 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10945 .doit = nl80211_tdls_channel_switch,
10946 .policy = nl80211_policy,
10947 .flags = GENL_ADMIN_PERM,
10948 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10949 NL80211_FLAG_NEED_RTNL,
10950 },
10951 {
10952 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10953 .doit = nl80211_tdls_cancel_channel_switch,
10954 .policy = nl80211_policy,
10955 .flags = GENL_ADMIN_PERM,
10956 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10957 NL80211_FLAG_NEED_RTNL,
10958 },
55682965 10959};
9588bbd5 10960
55682965
JB		 10961/* notification functions */
10962
3bb20556
JB		 10963void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10964 enum nl80211_commands cmd)
55682965
JB		 10965{
10966 struct sk_buff *msg;
86e8cf98 10967 struct nl80211_dump_wiphy_state state = {};
55682965 10968
3bb20556
JB		 10969 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10970 cmd != NL80211_CMD_DEL_WIPHY);
10971
fd2120ca 10972 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10973 if (!msg)
10974 return;
10975
3bb20556 10976 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10977 nlmsg_free(msg);
10978 return;
10979 }
10980
68eb5503 10981 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10982 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10983}
10984
362a415d
JB		 10985static int nl80211_add_scan_req(struct sk_buff *msg,
10986 struct cfg80211_registered_device *rdev)
10987{
10988 struct cfg80211_scan_request *req = rdev->scan_req;
10989 struct nlattr *nest;
10990 int i;
10991
10992 if (WARN_ON(!req))
10993 return 0;
10994
10995 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10996 if (!nest)
10997 goto nla_put_failure;
9360ffd1
DM		 10998 for (i = 0; i < req->n_ssids; i++) {
10999 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11000 goto nla_put_failure;
11001 }
362a415d
JB		 11002 nla_nest_end(msg, nest);
11003
11004 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11005 if (!nest)
11006 goto nla_put_failure;
9360ffd1
DM		 11007 for (i = 0; i < req->n_channels; i++) {
11008 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11009 goto nla_put_failure;
11010 }
362a415d
JB		 11011 nla_nest_end(msg, nest);
11012
9360ffd1
DM		 11013 if (req->ie &&
11014 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11015 goto nla_put_failure;
362a415d 11016
ae917c9f
JB		 11017 if (req->flags &&
11018 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11019 goto nla_put_failure;
ed473771 11020
362a415d
JB		 11021 return 0;
11022 nla_put_failure:
11023 return -ENOBUFS;
11024}
11025
a538e2d5
JB		 11026static int nl80211_send_scan_msg(struct sk_buff *msg,
11027 struct cfg80211_registered_device *rdev,
fd014284 11028 struct wireless_dev *wdev,
15e47304 11029 u32 portid, u32 seq, int flags,
a538e2d5 11030 u32 cmd)
2a519311
JB		 11031{
11032 void *hdr;
11033
15e47304 11034 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11035 if (!hdr)
11036 return -1;
11037
9360ffd1 11038 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11039 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11040 wdev->netdev->ifindex)) ||
11041 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11042 goto nla_put_failure;
2a519311 11043
362a415d
JB		 11044 /* ignore errors and send incomplete event anyway */
11045 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 11046
11047 return genlmsg_end(msg, hdr);
11048
11049 nla_put_failure:
11050 genlmsg_cancel(msg, hdr);
11051 return -EMSGSIZE;
11052}
11053
807f8a8c
LC		 11054static int
11055nl80211_send_sched_scan_msg(struct sk_buff *msg,
11056 struct cfg80211_registered_device *rdev,
11057 struct net_device *netdev,
15e47304 11058 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11059{
11060 void *hdr;
11061
15e47304 11062 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11063 if (!hdr)
11064 return -1;
11065
9360ffd1
DM		 11066 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11067 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11068 goto nla_put_failure;
807f8a8c
LC		 11069
11070 return genlmsg_end(msg, hdr);
11071
11072 nla_put_failure:
11073 genlmsg_cancel(msg, hdr);
11074 return -EMSGSIZE;
11075}
11076
a538e2d5 11077void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11078 struct wireless_dev *wdev)
a538e2d5
JB		 11079{
11080 struct sk_buff *msg;
11081
58050fce 11082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11083 if (!msg)
11084 return;
11085
fd014284 11086 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11087 NL80211_CMD_TRIGGER_SCAN) < 0) {
11088 nlmsg_free(msg);
11089 return;
11090 }
11091
68eb5503 11092 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11093 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11094}
11095
f9d15d16
JB		 11096struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11097 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11098{
11099 struct sk_buff *msg;
11100
fd2120ca 11101 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11102 if (!msg)
f9d15d16 11103 return NULL;
2a519311 11104
fd014284 11105 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11106 aborted ? NL80211_CMD_SCAN_ABORTED :
11107 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11108 nlmsg_free(msg);
f9d15d16 11109 return NULL;
2a519311
JB		 11110 }
11111
f9d15d16 11112 return msg;
2a519311
JB		 11113}
11114
f9d15d16
JB		 11115void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11116 struct sk_buff *msg)
2a519311 11117{
2a519311
JB		 11118 if (!msg)
11119 return;
11120
68eb5503 11121 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11122 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11123}
11124
807f8a8c
LC		 11125void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11126 struct net_device *netdev)
11127{
11128 struct sk_buff *msg;
11129
11130 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11131 if (!msg)
11132 return;
11133
11134 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11135 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11136 nlmsg_free(msg);
11137 return;
11138 }
11139
68eb5503 11140 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11141 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11142}
11143
11144void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11145 struct net_device *netdev, u32 cmd)
11146{
11147 struct sk_buff *msg;
11148
58050fce 11149 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11150 if (!msg)
11151 return;
11152
11153 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11154 nlmsg_free(msg);
11155 return;
11156 }
11157
68eb5503 11158 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11159 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11160}
11161
b0d7aa59
JD		 11162static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11163 struct regulatory_request *request)
73d54c9e 11164{
73d54c9e 11165 /* Userspace can always count this one always being set */
9360ffd1
DM		 11166 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11167 goto nla_put_failure;
11168
11169 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11170 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11171 NL80211_REGDOM_TYPE_WORLD))
11172 goto nla_put_failure;
11173 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11174 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11175 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11176 goto nla_put_failure;
11177 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11178 request->intersect) {
11179 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11180 NL80211_REGDOM_TYPE_INTERSECTION))
11181 goto nla_put_failure;
11182 } else {
11183 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11184 NL80211_REGDOM_TYPE_COUNTRY) ||
11185 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11186 request->alpha2))
11187 goto nla_put_failure;
11188 }
11189
ad30ca2c
AN		 11190 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11191 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11192
11193 if (wiphy &&
11194 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11195 goto nla_put_failure;
1bdd716c
AN		 11196
11197 if (wiphy &&
11198 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11199 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11200 goto nla_put_failure;
ad30ca2c 11201 }
73d54c9e 11202
b0d7aa59
JD		 11203 return true;
11204
11205nla_put_failure:
11206 return false;
11207}
11208
11209/*
11210 * This can happen on global regulatory changes or device specific settings
11211 * based on custom regulatory domains.
11212 */
11213void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11214 struct regulatory_request *request)
11215{
11216 struct sk_buff *msg;
11217 void *hdr;
11218
11219 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11220 if (!msg)
11221 return;
11222
11223 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11224 if (!hdr) {
11225 nlmsg_free(msg);
11226 return;
11227 }
11228
11229 if (nl80211_reg_change_event_fill(msg, request) == false)
11230 goto nla_put_failure;
11231
3b7b72ee 11232 genlmsg_end(msg, hdr);
73d54c9e 11233
bc43b28c 11234 rcu_read_lock();
68eb5503 11235 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11236 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11237 rcu_read_unlock();
73d54c9e
LR		 11238
11239 return;
11240
11241nla_put_failure:
11242 genlmsg_cancel(msg, hdr);
11243 nlmsg_free(msg);
11244}
11245
6039f6d2
JM		 11246static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11247 struct net_device *netdev,
11248 const u8 *buf, size_t len,
b0b6aa2c
EP		 11249 enum nl80211_commands cmd, gfp_t gfp,
11250 int uapsd_queues)
6039f6d2
JM		 11251{
11252 struct sk_buff *msg;
11253 void *hdr;
11254
e6d6e342 11255 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11256 if (!msg)
11257 return;
11258
11259 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11260 if (!hdr) {
11261 nlmsg_free(msg);
11262 return;
11263 }
11264
9360ffd1
DM		 11265 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11266 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11267 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11268 goto nla_put_failure;
6039f6d2 11269
b0b6aa2c
EP		 11270 if (uapsd_queues >= 0) {
11271 struct nlattr *nla_wmm =
11272 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11273 if (!nla_wmm)
11274 goto nla_put_failure;
11275
11276 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11277 uapsd_queues))
11278 goto nla_put_failure;
11279
11280 nla_nest_end(msg, nla_wmm);
11281 }
11282
3b7b72ee 11283 genlmsg_end(msg, hdr);
6039f6d2 11284
68eb5503 11285 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11286 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11287 return;
11288
11289 nla_put_failure:
11290 genlmsg_cancel(msg, hdr);
11291 nlmsg_free(msg);
11292}
11293
11294void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11295 struct net_device *netdev, const u8 *buf,
11296 size_t len, gfp_t gfp)
6039f6d2
JM		 11297{
11298 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11299 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11300}
11301
11302void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11303 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11304 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11305{
e6d6e342 11306 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11307 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11308}
11309
53b46b84 11310void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11311 struct net_device *netdev, const u8 *buf,
11312 size_t len, gfp_t gfp)
6039f6d2
JM		 11313{
11314 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11315 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11316}
11317
53b46b84
JM		 11318void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11319 struct net_device *netdev, const u8 *buf,
e6d6e342 11320 size_t len, gfp_t gfp)
6039f6d2
JM		 11321{
11322 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11323 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11324}
11325
6ff57cf8
JB		 11326void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11327 size_t len)
cf4e594e 11328{
947add36
JB		 11329 struct wireless_dev *wdev = dev->ieee80211_ptr;
11330 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11331 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11332 const struct ieee80211_mgmt *mgmt = (void *)buf;
11333 u32 cmd;
947add36 11334
6ff57cf8
JB		 11335 if (WARN_ON(len < 2))
11336 return;
cf4e594e 11337
6ff57cf8
JB		 11338 if (ieee80211_is_deauth(mgmt->frame_control))
11339 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11340 else
11341 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11342
6ff57cf8 11343 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11344 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11345}
6ff57cf8 11346EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11347
1b06bb40
LR		 11348static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11349 struct net_device *netdev, int cmd,
e6d6e342 11350 const u8 *addr, gfp_t gfp)
1965c853
JM		 11351{
11352 struct sk_buff *msg;
11353 void *hdr;
11354
e6d6e342 11355 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11356 if (!msg)
11357 return;
11358
11359 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11360 if (!hdr) {
11361 nlmsg_free(msg);
11362 return;
11363 }
11364
9360ffd1
DM		 11365 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11366 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11367 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11368 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11369 goto nla_put_failure;
1965c853 11370
3b7b72ee 11371 genlmsg_end(msg, hdr);
1965c853 11372
68eb5503 11373 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11374 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11375 return;
11376
11377 nla_put_failure:
11378 genlmsg_cancel(msg, hdr);
11379 nlmsg_free(msg);
11380}
11381
11382void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11383 struct net_device *netdev, const u8 *addr,
11384 gfp_t gfp)
1965c853
JM		 11385{
11386 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11387 addr, gfp);
1965c853
JM		 11388}
11389
11390void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11391 struct net_device *netdev, const u8 *addr,
11392 gfp_t gfp)
1965c853 11393{
e6d6e342
JB		 11394 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11395 addr, gfp);
1965c853
JM		 11396}
11397
b23aa676
SO		 11398void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11399 struct net_device *netdev, const u8 *bssid,
11400 const u8 *req_ie, size_t req_ie_len,
11401 const u8 *resp_ie, size_t resp_ie_len,
11402 u16 status, gfp_t gfp)
11403{
11404 struct sk_buff *msg;
11405 void *hdr;
11406
58050fce 11407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11408 if (!msg)
11409 return;
11410
11411 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11412 if (!hdr) {
11413 nlmsg_free(msg);
11414 return;
11415 }
11416
9360ffd1
DM		 11417 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11418 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11419 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11420 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11421 (req_ie &&
11422 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11423 (resp_ie &&
11424 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11425 goto nla_put_failure;
b23aa676 11426
3b7b72ee 11427 genlmsg_end(msg, hdr);
b23aa676 11428
68eb5503 11429 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11430 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11431 return;
11432
11433 nla_put_failure:
11434 genlmsg_cancel(msg, hdr);
11435 nlmsg_free(msg);
11436
11437}
11438
11439void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11440 struct net_device *netdev, const u8 *bssid,
11441 const u8 *req_ie, size_t req_ie_len,
11442 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11443{
11444 struct sk_buff *msg;
11445 void *hdr;
11446
58050fce 11447 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11448 if (!msg)
11449 return;
11450
11451 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11452 if (!hdr) {
11453 nlmsg_free(msg);
11454 return;
11455 }
11456
9360ffd1
DM		 11457 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11458 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11459 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11460 (req_ie &&
11461 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11462 (resp_ie &&
11463 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11464 goto nla_put_failure;
b23aa676 11465
3b7b72ee 11466 genlmsg_end(msg, hdr);
b23aa676 11467
68eb5503 11468 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11469 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11470 return;
11471
11472 nla_put_failure:
11473 genlmsg_cancel(msg, hdr);
11474 nlmsg_free(msg);
11475
11476}
11477
11478void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11479 struct net_device *netdev, u16 reason,
667503dd 11480 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11481{
11482 struct sk_buff *msg;
11483 void *hdr;
11484
58050fce 11485 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11486 if (!msg)
11487 return;
11488
11489 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11490 if (!hdr) {
11491 nlmsg_free(msg);
11492 return;
11493 }
11494
9360ffd1
DM		 11495 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11496 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11497 (from_ap && reason &&
11498 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11499 (from_ap &&
11500 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11501 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11502 goto nla_put_failure;
b23aa676 11503
3b7b72ee 11504 genlmsg_end(msg, hdr);
b23aa676 11505
68eb5503 11506 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11507 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11508 return;
11509
11510 nla_put_failure:
11511 genlmsg_cancel(msg, hdr);
11512 nlmsg_free(msg);
11513
11514}
11515
04a773ad
JB		 11516void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11517 struct net_device *netdev, const u8 *bssid,
11518 gfp_t gfp)
11519{
11520 struct sk_buff *msg;
11521 void *hdr;
11522
fd2120ca 11523 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11524 if (!msg)
11525 return;
11526
11527 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11528 if (!hdr) {
11529 nlmsg_free(msg);
11530 return;
11531 }
11532
9360ffd1
DM		 11533 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11534 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11535 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11536 goto nla_put_failure;
04a773ad 11537
3b7b72ee 11538 genlmsg_end(msg, hdr);
04a773ad 11539
68eb5503 11540 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11541 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11542 return;
11543
11544 nla_put_failure:
11545 genlmsg_cancel(msg, hdr);
11546 nlmsg_free(msg);
11547}
11548
947add36
JB		 11549void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11550 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11551{
947add36 11552 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11553 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11554 struct sk_buff *msg;
11555 void *hdr;
11556
947add36
JB		 11557 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11558 return;
11559
11560 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11561
c93b5e71
JC		 11562 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11563 if (!msg)
11564 return;
11565
11566 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11567 if (!hdr) {
11568 nlmsg_free(msg);
11569 return;
11570 }
11571
9360ffd1 11572 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11573 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11574 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11575 (ie_len && ie &&
11576 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11577 goto nla_put_failure;
c93b5e71 11578
3b7b72ee 11579 genlmsg_end(msg, hdr);
c93b5e71 11580
68eb5503 11581 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11582 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11583 return;
11584
11585 nla_put_failure:
11586 genlmsg_cancel(msg, hdr);
11587 nlmsg_free(msg);
11588}
947add36 11589EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11590
a3b8b056
JM		 11591void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11592 struct net_device *netdev, const u8 *addr,
11593 enum nl80211_key_type key_type, int key_id,
e6d6e342 11594 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11595{
11596 struct sk_buff *msg;
11597 void *hdr;
11598
e6d6e342 11599 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11600 if (!msg)
11601 return;
11602
11603 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11604 if (!hdr) {
11605 nlmsg_free(msg);
11606 return;
11607 }
11608
9360ffd1
DM		 11609 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11610 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11611 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11612 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11613 (key_id != -1 &&
11614 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11615 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11616 goto nla_put_failure;
a3b8b056 11617
3b7b72ee 11618 genlmsg_end(msg, hdr);
a3b8b056 11619
68eb5503 11620 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11621 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11622 return;
11623
11624 nla_put_failure:
11625 genlmsg_cancel(msg, hdr);
11626 nlmsg_free(msg);
11627}
11628
6bad8766
LR		 11629void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11630 struct ieee80211_channel *channel_before,
11631 struct ieee80211_channel *channel_after)
11632{
11633 struct sk_buff *msg;
11634 void *hdr;
11635 struct nlattr *nl_freq;
11636
fd2120ca 11637 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11638 if (!msg)
11639 return;
11640
11641 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11642 if (!hdr) {
11643 nlmsg_free(msg);
11644 return;
11645 }
11646
11647 /*
11648 * Since we are applying the beacon hint to a wiphy we know its
11649 * wiphy_idx is valid
11650 */
9360ffd1
DM		 11651 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11652 goto nla_put_failure;
6bad8766
LR		 11653
11654 /* Before */
11655 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11656 if (!nl_freq)
11657 goto nla_put_failure;
cdc89b97 11658 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11659 goto nla_put_failure;
11660 nla_nest_end(msg, nl_freq);
11661
11662 /* After */
11663 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11664 if (!nl_freq)
11665 goto nla_put_failure;
cdc89b97 11666 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11667 goto nla_put_failure;
11668 nla_nest_end(msg, nl_freq);
11669
3b7b72ee 11670 genlmsg_end(msg, hdr);
6bad8766 11671
463d0183 11672 rcu_read_lock();
68eb5503 11673 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11674 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11675 rcu_read_unlock();
6bad8766
LR		 11676
11677 return;
11678
11679nla_put_failure:
11680 genlmsg_cancel(msg, hdr);
11681 nlmsg_free(msg);
11682}
11683
9588bbd5
JM		 11684static void nl80211_send_remain_on_chan_event(
11685 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11686 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11687 struct ieee80211_channel *chan,
9588bbd5
JM		 11688 unsigned int duration, gfp_t gfp)
11689{
11690 struct sk_buff *msg;
11691 void *hdr;
11692
11693 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11694 if (!msg)
11695 return;
11696
11697 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11698 if (!hdr) {
11699 nlmsg_free(msg);
11700 return;
11701 }
11702
9360ffd1 11703 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11704 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11705 wdev->netdev->ifindex)) ||
00f53350 11706 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11707 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11708 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11709 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11710 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11711 goto nla_put_failure;
9588bbd5 11712
9360ffd1
DM		 11713 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11714 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11715 goto nla_put_failure;
9588bbd5 11716
3b7b72ee 11717 genlmsg_end(msg, hdr);
9588bbd5 11718
68eb5503 11719 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11720 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11721 return;
11722
11723 nla_put_failure:
11724 genlmsg_cancel(msg, hdr);
11725 nlmsg_free(msg);
11726}
11727
947add36
JB		 11728void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11729 struct ieee80211_channel *chan,
11730 unsigned int duration, gfp_t gfp)
9588bbd5 11731{
947add36 11732 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11733 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11734
11735 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11736 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11737 rdev, wdev, cookie, chan,
42d97a59 11738 duration, gfp);
9588bbd5 11739}
947add36 11740EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11741
947add36
JB		 11742void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11743 struct ieee80211_channel *chan,
11744 gfp_t gfp)
9588bbd5 11745{
947add36 11746 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11747 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11748
11749 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11750 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11751 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11752}
947add36 11753EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11754
947add36
JB		 11755void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11756 struct station_info *sinfo, gfp_t gfp)
98b62183 11757{
947add36 11758 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11759 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11760 struct sk_buff *msg;
11761
947add36
JB		 11762 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11763
58050fce 11764 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11765 if (!msg)
11766 return;
11767
cf5ead82 11768 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 11769 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11770 nlmsg_free(msg);
11771 return;
11772 }
11773
68eb5503 11774 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11775 NL80211_MCGRP_MLME, gfp);
98b62183 11776}
947add36 11777EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11778
cf5ead82
JB		 11779void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
11780 struct station_info *sinfo, gfp_t gfp)
ec15e68b 11781{
947add36 11782 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11783 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 11784 struct sk_buff *msg;
cf5ead82
JB		 11785 struct station_info empty_sinfo = {};
11786
11787 if (!sinfo)
11788 sinfo = &empty_sinfo;
ec15e68b 11789
947add36
JB		 11790 trace_cfg80211_del_sta(dev, mac_addr);
11791
58050fce 11792 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11793 if (!msg)
11794 return;
11795
cf5ead82 11796 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 11797 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 11798 nlmsg_free(msg);
11799 return;
11800 }
11801
68eb5503 11802 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11803 NL80211_MCGRP_MLME, gfp);
ec15e68b 11804}
cf5ead82 11805EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 11806
947add36
JB		 11807void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11808 enum nl80211_connect_failed_reason reason,
11809 gfp_t gfp)
ed44a951 11810{
947add36 11811 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11812 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11813 struct sk_buff *msg;
11814 void *hdr;
11815
11816 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11817 if (!msg)
11818 return;
11819
11820 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11821 if (!hdr) {
11822 nlmsg_free(msg);
11823 return;
11824 }
11825
11826 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11827 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11828 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11829 goto nla_put_failure;
11830
11831 genlmsg_end(msg, hdr);
11832
68eb5503 11833 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11834 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11835 return;
11836
11837 nla_put_failure:
11838 genlmsg_cancel(msg, hdr);
11839 nlmsg_free(msg);
11840}
947add36 11841EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11842
b92ab5d8
JB		 11843static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11844 const u8 *addr, gfp_t gfp)
28946da7
JB		 11845{
11846 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11847 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11848 struct sk_buff *msg;
11849 void *hdr;
15e47304 11850 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11851
15e47304 11852 if (!nlportid)
28946da7
JB		 11853 return false;
11854
11855 msg = nlmsg_new(100, gfp);
11856 if (!msg)
11857 return true;
11858
b92ab5d8 11859 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11860 if (!hdr) {
11861 nlmsg_free(msg);
11862 return true;
11863 }
11864
9360ffd1
DM		 11865 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11866 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11867 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11868 goto nla_put_failure;
28946da7 11869
9c90a9f6 11870 genlmsg_end(msg, hdr);
15e47304 11871 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11872 return true;
11873
11874 nla_put_failure:
11875 genlmsg_cancel(msg, hdr);
11876 nlmsg_free(msg);
11877 return true;
11878}
11879
947add36
JB		 11880bool cfg80211_rx_spurious_frame(struct net_device *dev,
11881 const u8 *addr, gfp_t gfp)
b92ab5d8 11882{
947add36
JB		 11883 struct wireless_dev *wdev = dev->ieee80211_ptr;
11884 bool ret;
11885
11886 trace_cfg80211_rx_spurious_frame(dev, addr);
11887
11888 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11889 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11890 trace_cfg80211_return_bool(false);
11891 return false;
11892 }
11893 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11894 addr, gfp);
11895 trace_cfg80211_return_bool(ret);
11896 return ret;
b92ab5d8 11897}
947add36 11898EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11899
947add36
JB		 11900bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11901 const u8 *addr, gfp_t gfp)
b92ab5d8 11902{
947add36
JB		 11903 struct wireless_dev *wdev = dev->ieee80211_ptr;
11904 bool ret;
11905
11906 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11907
11908 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11909 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11910 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11911 trace_cfg80211_return_bool(false);
11912 return false;
11913 }
11914 ret = __nl80211_unexpected_frame(dev,
11915 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11916 addr, gfp);
11917 trace_cfg80211_return_bool(ret);
11918 return ret;
b92ab5d8 11919}
947add36 11920EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11921
2e161f78 11922int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11923 struct wireless_dev *wdev, u32 nlportid,
804483e9 11924 int freq, int sig_dbm,
19504cf5 11925 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11926{
71bbc994 11927 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11928 struct sk_buff *msg;
11929 void *hdr;
026331c4
JM		 11930
11931 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11932 if (!msg)
11933 return -ENOMEM;
11934
2e161f78 11935 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11936 if (!hdr) {
11937 nlmsg_free(msg);
11938 return -ENOMEM;
11939 }
11940
9360ffd1 11941 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11942 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11943 netdev->ifindex)) ||
a838490b 11944 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11945 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11946 (sig_dbm &&
11947 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11948 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11949 (flags &&
11950 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11951 goto nla_put_failure;
026331c4 11952
3b7b72ee 11953 genlmsg_end(msg, hdr);
026331c4 11954
15e47304 11955 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11956
11957 nla_put_failure:
11958 genlmsg_cancel(msg, hdr);
11959 nlmsg_free(msg);
11960 return -ENOBUFS;
11961}
11962
947add36
JB		 11963void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11964 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11965{
947add36 11966 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11967 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11968 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11969 struct sk_buff *msg;
11970 void *hdr;
11971
947add36
JB		 11972 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11973
026331c4
JM		 11974 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11975 if (!msg)
11976 return;
11977
2e161f78 11978 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11979 if (!hdr) {
11980 nlmsg_free(msg);
11981 return;
11982 }
11983
9360ffd1 11984 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11985 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11986 netdev->ifindex)) ||
a838490b 11987 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11988 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11989 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11990 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11991 goto nla_put_failure;
026331c4 11992
3b7b72ee 11993 genlmsg_end(msg, hdr);
026331c4 11994
68eb5503 11995 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11996 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11997 return;
11998
11999 nla_put_failure:
12000 genlmsg_cancel(msg, hdr);
12001 nlmsg_free(msg);
12002}
947add36 12003EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12004
5b97f49d
JB		 12005static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12006 const char *mac, gfp_t gfp)
d6dc1a38 12007{
947add36 12008 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12009 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12010 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12011 void **cb;
947add36 12012
d6dc1a38 12013 if (!msg)
5b97f49d 12014 return NULL;
d6dc1a38 12015
5b97f49d
JB		 12016 cb = (void **)msg->cb;
12017
12018 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12019 if (!cb[0]) {
d6dc1a38 12020 nlmsg_free(msg);
5b97f49d 12021 return NULL;
d6dc1a38
JO		 12022 }
12023
9360ffd1 12024 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12025 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12026 goto nla_put_failure;
d6dc1a38 12027
5b97f49d 12028 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12029 goto nla_put_failure;
12030
5b97f49d
JB		 12031 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12032 if (!cb[1])
9360ffd1 12033 goto nla_put_failure;
d6dc1a38 12034
5b97f49d 12035 cb[2] = rdev;
d6dc1a38 12036
5b97f49d
JB		 12037 return msg;
12038 nla_put_failure:
12039 nlmsg_free(msg);
12040 return NULL;
12041}
12042
12043static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12044{
12045 void **cb = (void **)msg->cb;
12046 struct cfg80211_registered_device *rdev = cb[2];
12047
12048 nla_nest_end(msg, cb[1]);
12049 genlmsg_end(msg, cb[0]);
12050
12051 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12052
68eb5503 12053 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12054 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12055}
12056
12057void cfg80211_cqm_rssi_notify(struct net_device *dev,
12058 enum nl80211_cqm_rssi_threshold_event rssi_event,
12059 gfp_t gfp)
12060{
12061 struct sk_buff *msg;
12062
12063 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12064
98f03342
JB		 12065 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12066 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12067 return;
12068
5b97f49d
JB		 12069 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12070 if (!msg)
12071 return;
12072
12073 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12074 rssi_event))
12075 goto nla_put_failure;
12076
12077 cfg80211_send_cqm(msg, gfp);
12078
d6dc1a38
JO		 12079 return;
12080
12081 nla_put_failure:
d6dc1a38
JO		 12082 nlmsg_free(msg);
12083}
947add36 12084EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12085
5b97f49d
JB		 12086void cfg80211_cqm_txe_notify(struct net_device *dev,
12087 const u8 *peer, u32 num_packets,
12088 u32 rate, u32 intvl, gfp_t gfp)
12089{
12090 struct sk_buff *msg;
12091
12092 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12093 if (!msg)
12094 return;
12095
12096 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12097 goto nla_put_failure;
12098
12099 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12100 goto nla_put_failure;
12101
12102 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12103 goto nla_put_failure;
12104
12105 cfg80211_send_cqm(msg, gfp);
12106 return;
12107
12108 nla_put_failure:
12109 nlmsg_free(msg);
12110}
12111EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12112
12113void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12114 const u8 *peer, u32 num_packets, gfp_t gfp)
12115{
12116 struct sk_buff *msg;
12117
12118 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12119
12120 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12121 if (!msg)
12122 return;
12123
12124 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12125 goto nla_put_failure;
12126
12127 cfg80211_send_cqm(msg, gfp);
12128 return;
12129
12130 nla_put_failure:
12131 nlmsg_free(msg);
12132}
12133EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12134
98f03342
JB		 12135void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12136{
12137 struct sk_buff *msg;
12138
12139 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12140 if (!msg)
12141 return;
12142
12143 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12144 goto nla_put_failure;
12145
12146 cfg80211_send_cqm(msg, gfp);
12147 return;
12148
12149 nla_put_failure:
12150 nlmsg_free(msg);
12151}
12152EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12153
947add36
JB		 12154static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12155 struct net_device *netdev, const u8 *bssid,
12156 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12157{
12158 struct sk_buff *msg;
12159 struct nlattr *rekey_attr;
12160 void *hdr;
12161
58050fce 12162 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12163 if (!msg)
12164 return;
12165
12166 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12167 if (!hdr) {
12168 nlmsg_free(msg);
12169 return;
12170 }
12171
9360ffd1
DM		 12172 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12173 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12174 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12175 goto nla_put_failure;
e5497d76
JB		 12176
12177 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12178 if (!rekey_attr)
12179 goto nla_put_failure;
12180
9360ffd1
DM		 12181 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12182 NL80211_REPLAY_CTR_LEN, replay_ctr))
12183 goto nla_put_failure;
e5497d76
JB		 12184
12185 nla_nest_end(msg, rekey_attr);
12186
3b7b72ee 12187 genlmsg_end(msg, hdr);
e5497d76 12188
68eb5503 12189 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12190 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12191 return;
12192
12193 nla_put_failure:
12194 genlmsg_cancel(msg, hdr);
12195 nlmsg_free(msg);
12196}
12197
947add36
JB		 12198void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12199 const u8 *replay_ctr, gfp_t gfp)
12200{
12201 struct wireless_dev *wdev = dev->ieee80211_ptr;
12202 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12203 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12204
12205 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12206 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12207}
12208EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12209
12210static void
12211nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12212 struct net_device *netdev, int index,
12213 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12214{
12215 struct sk_buff *msg;
12216 struct nlattr *attr;
12217 void *hdr;
12218
58050fce 12219 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12220 if (!msg)
12221 return;
12222
12223 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12224 if (!hdr) {
12225 nlmsg_free(msg);
12226 return;
12227 }
12228
9360ffd1
DM		 12229 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12230 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12231 goto nla_put_failure;
c9df56b4
JM		 12232
12233 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12234 if (!attr)
12235 goto nla_put_failure;
12236
9360ffd1
DM		 12237 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12238 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12239 (preauth &&
12240 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12241 goto nla_put_failure;
c9df56b4
JM		 12242
12243 nla_nest_end(msg, attr);
12244
3b7b72ee 12245 genlmsg_end(msg, hdr);
c9df56b4 12246
68eb5503 12247 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12248 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12249 return;
12250
12251 nla_put_failure:
12252 genlmsg_cancel(msg, hdr);
12253 nlmsg_free(msg);
12254}
12255
947add36
JB		 12256void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12257 const u8 *bssid, bool preauth, gfp_t gfp)
12258{
12259 struct wireless_dev *wdev = dev->ieee80211_ptr;
12260 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12261 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12262
12263 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12264 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12265}
12266EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12267
12268static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12269 struct net_device *netdev,
12270 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12271 gfp_t gfp,
12272 enum nl80211_commands notif,
12273 u8 count)
5314526b
TP		 12274{
12275 struct sk_buff *msg;
12276 void *hdr;
12277
58050fce 12278 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12279 if (!msg)
12280 return;
12281
f8d7552e 12282 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12283 if (!hdr) {
12284 nlmsg_free(msg);
12285 return;
12286 }
12287
683b6d3b
JB		 12288 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12289 goto nla_put_failure;
12290
12291 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12292 goto nla_put_failure;
5314526b 12293
f8d7552e
LC		 12294 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12295 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12296 goto nla_put_failure;
12297
5314526b
TP		 12298 genlmsg_end(msg, hdr);
12299
68eb5503 12300 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12301 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12302 return;
12303
12304 nla_put_failure:
12305 genlmsg_cancel(msg, hdr);
12306 nlmsg_free(msg);
12307}
12308
947add36
JB		 12309void cfg80211_ch_switch_notify(struct net_device *dev,
12310 struct cfg80211_chan_def *chandef)
84f10708 12311{
947add36
JB		 12312 struct wireless_dev *wdev = dev->ieee80211_ptr;
12313 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12314 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12315
e487eaeb 12316 ASSERT_WDEV_LOCK(wdev);
947add36 12317
e487eaeb 12318 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12319
9e0e2961 12320 wdev->chandef = *chandef;
96f55f12 12321 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12322 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12323 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12324}
12325EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12326
f8d7552e
LC		 12327void cfg80211_ch_switch_started_notify(struct net_device *dev,
12328 struct cfg80211_chan_def *chandef,
12329 u8 count)
12330{
12331 struct wireless_dev *wdev = dev->ieee80211_ptr;
12332 struct wiphy *wiphy = wdev->wiphy;
12333 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12334
12335 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12336
12337 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12338 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12339}
12340EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12341
04f39047
SW		 12342void
12343nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12344 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12345 enum nl80211_radar_event event,
12346 struct net_device *netdev, gfp_t gfp)
12347{
12348 struct sk_buff *msg;
12349 void *hdr;
12350
12351 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12352 if (!msg)
12353 return;
12354
12355 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12356 if (!hdr) {
12357 nlmsg_free(msg);
12358 return;
12359 }
12360
12361 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12362 goto nla_put_failure;
12363
12364 /* NOP and radar events don't need a netdev parameter */
12365 if (netdev) {
12366 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12367
12368 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12369 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12370 goto nla_put_failure;
12371 }
12372
12373 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12374 goto nla_put_failure;
12375
12376 if (nl80211_send_chandef(msg, chandef))
12377 goto nla_put_failure;
12378
9c90a9f6 12379 genlmsg_end(msg, hdr);
04f39047 12380
68eb5503 12381 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12382 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12383 return;
12384
12385 nla_put_failure:
12386 genlmsg_cancel(msg, hdr);
12387 nlmsg_free(msg);
12388}
12389
7f6cf311
JB		 12390void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12391 u64 cookie, bool acked, gfp_t gfp)
12392{
12393 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12394 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12395 struct sk_buff *msg;
12396 void *hdr;
7f6cf311 12397
4ee3e063
BL		 12398 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12399
58050fce 12400 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12401
7f6cf311
JB		 12402 if (!msg)
12403 return;
12404
12405 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12406 if (!hdr) {
12407 nlmsg_free(msg);
12408 return;
12409 }
12410
9360ffd1
DM		 12411 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12412 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12413 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12414 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12415 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12416 goto nla_put_failure;
7f6cf311 12417
9c90a9f6 12418 genlmsg_end(msg, hdr);
7f6cf311 12419
68eb5503 12420 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12421 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12422 return;
12423
12424 nla_put_failure:
12425 genlmsg_cancel(msg, hdr);
12426 nlmsg_free(msg);
12427}
12428EXPORT_SYMBOL(cfg80211_probe_status);
12429
5e760230
JB		 12430void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12431 const u8 *frame, size_t len,
37c73b5f 12432 int freq, int sig_dbm)
5e760230 12433{
f26cbf40 12434 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12435 struct sk_buff *msg;
12436 void *hdr;
37c73b5f 12437 struct cfg80211_beacon_registration *reg;
5e760230 12438
4ee3e063
BL		 12439 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12440
37c73b5f
BG		 12441 spin_lock_bh(&rdev->beacon_registrations_lock);
12442 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12443 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12444 if (!msg) {
12445 spin_unlock_bh(&rdev->beacon_registrations_lock);
12446 return;
12447 }
5e760230 12448
37c73b5f
BG		 12449 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12450 if (!hdr)
12451 goto nla_put_failure;
5e760230 12452
37c73b5f
BG		 12453 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12454 (freq &&
12455 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12456 (sig_dbm &&
12457 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12458 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12459 goto nla_put_failure;
5e760230 12460
37c73b5f 12461 genlmsg_end(msg, hdr);
5e760230 12462
37c73b5f
BG		 12463 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12464 }
12465 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12466 return;
12467
12468 nla_put_failure:
37c73b5f
BG		 12469 spin_unlock_bh(&rdev->beacon_registrations_lock);
12470 if (hdr)
12471 genlmsg_cancel(msg, hdr);
5e760230
JB		 12472 nlmsg_free(msg);
12473}
12474EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12475
cd8f7cb4 12476#ifdef CONFIG_PM
8cd4d456
LC		 12477static int cfg80211_net_detect_results(struct sk_buff *msg,
12478 struct cfg80211_wowlan_wakeup *wakeup)
12479{
12480 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12481 struct nlattr *nl_results, *nl_match, *nl_freqs;
12482 int i, j;
12483
12484 nl_results = nla_nest_start(
12485 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12486 if (!nl_results)
12487 return -EMSGSIZE;
12488
12489 for (i = 0; i < nd->n_matches; i++) {
12490 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12491
12492 nl_match = nla_nest_start(msg, i);
12493 if (!nl_match)
12494 break;
12495
12496 /* The SSID attribute is optional in nl80211, but for
12497 * simplicity reasons it's always present in the
12498 * cfg80211 structure. If a driver can't pass the
12499 * SSID, that needs to be changed. A zero length SSID
12500 * is still a valid SSID (wildcard), so it cannot be
12501 * used for this purpose.
12502 */
12503 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12504 match->ssid.ssid)) {
12505 nla_nest_cancel(msg, nl_match);
12506 goto out;
12507 }
12508
12509 if (match->n_channels) {
12510 nl_freqs = nla_nest_start(
12511 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12512 if (!nl_freqs) {
12513 nla_nest_cancel(msg, nl_match);
12514 goto out;
12515 }
12516
12517 for (j = 0; j < match->n_channels; j++) {
12518 if (nla_put_u32(msg,
12519 NL80211_ATTR_WIPHY_FREQ,
12520 match->channels[j])) {
12521 nla_nest_cancel(msg, nl_freqs);
12522 nla_nest_cancel(msg, nl_match);
12523 goto out;
12524 }
12525 }
12526
12527 nla_nest_end(msg, nl_freqs);
12528 }
12529
12530 nla_nest_end(msg, nl_match);
12531 }
12532
12533out:
12534 nla_nest_end(msg, nl_results);
12535 return 0;
12536}
12537
cd8f7cb4
JB		 12538void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12539 struct cfg80211_wowlan_wakeup *wakeup,
12540 gfp_t gfp)
12541{
f26cbf40 12542 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12543 struct sk_buff *msg;
12544 void *hdr;
9c90a9f6 12545 int size = 200;
cd8f7cb4
JB		 12546
12547 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12548
12549 if (wakeup)
12550 size += wakeup->packet_present_len;
12551
12552 msg = nlmsg_new(size, gfp);
12553 if (!msg)
12554 return;
12555
12556 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12557 if (!hdr)
12558 goto free_msg;
12559
12560 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12561 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12562 goto free_msg;
12563
12564 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12565 wdev->netdev->ifindex))
12566 goto free_msg;
12567
12568 if (wakeup) {
12569 struct nlattr *reasons;
12570
12571 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12572 if (!reasons)
12573 goto free_msg;
cd8f7cb4
JB		 12574
12575 if (wakeup->disconnect &&
12576 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12577 goto free_msg;
12578 if (wakeup->magic_pkt &&
12579 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12580 goto free_msg;
12581 if (wakeup->gtk_rekey_failure &&
12582 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12583 goto free_msg;
12584 if (wakeup->eap_identity_req &&
12585 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12586 goto free_msg;
12587 if (wakeup->four_way_handshake &&
12588 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12589 goto free_msg;
12590 if (wakeup->rfkill_release &&
12591 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12592 goto free_msg;
12593
12594 if (wakeup->pattern_idx >= 0 &&
12595 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12596 wakeup->pattern_idx))
12597 goto free_msg;
12598
ae917c9f
JB		 12599 if (wakeup->tcp_match &&
12600 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12601 goto free_msg;
2a0e047e 12602
ae917c9f
JB		 12603 if (wakeup->tcp_connlost &&
12604 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12605 goto free_msg;
2a0e047e 12606
ae917c9f
JB		 12607 if (wakeup->tcp_nomoretokens &&
12608 nla_put_flag(msg,
12609 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12610 goto free_msg;
2a0e047e 12611
cd8f7cb4
JB		 12612 if (wakeup->packet) {
12613 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12614 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12615
12616 if (!wakeup->packet_80211) {
12617 pkt_attr =
12618 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12619 len_attr =
12620 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12621 }
12622
12623 if (wakeup->packet_len &&
12624 nla_put_u32(msg, len_attr, wakeup->packet_len))
12625 goto free_msg;
12626
12627 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12628 wakeup->packet))
12629 goto free_msg;
12630 }
12631
8cd4d456
LC		 12632 if (wakeup->net_detect &&
12633 cfg80211_net_detect_results(msg, wakeup))
12634 goto free_msg;
12635
cd8f7cb4
JB		 12636 nla_nest_end(msg, reasons);
12637 }
12638
9c90a9f6 12639 genlmsg_end(msg, hdr);
cd8f7cb4 12640
68eb5503 12641 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12642 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12643 return;
12644
12645 free_msg:
12646 nlmsg_free(msg);
12647}
12648EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12649#endif
12650
3475b094
JM		 12651void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12652 enum nl80211_tdls_operation oper,
12653 u16 reason_code, gfp_t gfp)
12654{
12655 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12656 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12657 struct sk_buff *msg;
12658 void *hdr;
3475b094
JM		 12659
12660 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12661 reason_code);
12662
12663 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12664 if (!msg)
12665 return;
12666
12667 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12668 if (!hdr) {
12669 nlmsg_free(msg);
12670 return;
12671 }
12672
12673 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12674 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12675 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12676 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12677 (reason_code > 0 &&
12678 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12679 goto nla_put_failure;
12680
9c90a9f6 12681 genlmsg_end(msg, hdr);
3475b094 12682
68eb5503 12683 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12684 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12685 return;
12686
12687 nla_put_failure:
12688 genlmsg_cancel(msg, hdr);
12689 nlmsg_free(msg);
12690}
12691EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12692
026331c4
JM		 12693static int nl80211_netlink_notify(struct notifier_block * nb,
12694 unsigned long state,
12695 void *_notify)
12696{
12697 struct netlink_notify *notify = _notify;
12698 struct cfg80211_registered_device *rdev;
12699 struct wireless_dev *wdev;
37c73b5f 12700 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12701
12702 if (state != NETLINK_URELEASE)
12703 return NOTIFY_DONE;
12704
12705 rcu_read_lock();
12706
5e760230 12707 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 12708 bool schedule_destroy_work = false;
93a1e86c
JR		 12709 bool schedule_scan_stop = false;
12710 struct cfg80211_sched_scan_request *sched_scan_req =
12711 rcu_dereference(rdev->sched_scan_req);
12712
12713 if (sched_scan_req && notify->portid &&
12714 sched_scan_req->owner_nlportid == notify->portid)
12715 schedule_scan_stop = true;
78f22b6a
JB		 12716
12717 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12718 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12719
78f22b6a
JB		 12720 if (wdev->owner_nlportid == notify->portid)
12721 schedule_destroy_work = true;
12722 }
12723
37c73b5f
BG		 12724 spin_lock_bh(&rdev->beacon_registrations_lock);
12725 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12726 list) {
12727 if (reg->nlportid == notify->portid) {
12728 list_del(&reg->list);
12729 kfree(reg);
12730 break;
12731 }
12732 }
12733 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12734
12735 if (schedule_destroy_work) {
12736 struct cfg80211_iface_destroy *destroy;
12737
12738 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12739 if (destroy) {
12740 destroy->nlportid = notify->portid;
12741 spin_lock(&rdev->destroy_list_lock);
12742 list_add(&destroy->list, &rdev->destroy_list);
12743 spin_unlock(&rdev->destroy_list_lock);
12744 schedule_work(&rdev->destroy_work);
12745 }
93a1e86c
JR		 12746 } else if (schedule_scan_stop) {
12747 sched_scan_req->owner_nlportid = 0;
12748
12749 if (rdev->ops->sched_scan_stop &&
12750 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
12751 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 12752 }
5e760230 12753 }
026331c4
JM		 12754
12755 rcu_read_unlock();
12756
6784c7db 12757 return NOTIFY_OK;
026331c4
JM		 12758}
12759
12760static struct notifier_block nl80211_netlink_notifier = {
12761 .notifier_call = nl80211_netlink_notify,
12762};
12763
355199e0
JM		 12764void cfg80211_ft_event(struct net_device *netdev,
12765 struct cfg80211_ft_event_params *ft_event)
12766{
12767 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12768 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12769 struct sk_buff *msg;
12770 void *hdr;
355199e0
JM		 12771
12772 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12773
12774 if (!ft_event->target_ap)
12775 return;
12776
12777 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12778 if (!msg)
12779 return;
12780
12781 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12782 if (!hdr)
12783 goto out;
355199e0 12784
ae917c9f
JB		 12785 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12786 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12787 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12788 goto out;
355199e0 12789
ae917c9f
JB		 12790 if (ft_event->ies &&
12791 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12792 goto out;
12793 if (ft_event->ric_ies &&
12794 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12795 ft_event->ric_ies))
12796 goto out;
355199e0 12797
9c90a9f6 12798 genlmsg_end(msg, hdr);
355199e0 12799
68eb5503 12800 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12801 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12802 return;
12803 out:
12804 nlmsg_free(msg);
355199e0
JM		 12805}
12806EXPORT_SYMBOL(cfg80211_ft_event);
12807
5de17984
AS		 12808void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12809{
12810 struct cfg80211_registered_device *rdev;
12811 struct sk_buff *msg;
12812 void *hdr;
12813 u32 nlportid;
12814
f26cbf40 12815 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12816 if (!rdev->crit_proto_nlportid)
12817 return;
12818
12819 nlportid = rdev->crit_proto_nlportid;
12820 rdev->crit_proto_nlportid = 0;
12821
12822 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12823 if (!msg)
12824 return;
12825
12826 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12827 if (!hdr)
12828 goto nla_put_failure;
12829
12830 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12831 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12832 goto nla_put_failure;
12833
12834 genlmsg_end(msg, hdr);
12835
12836 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12837 return;
12838
12839 nla_put_failure:
12840 if (hdr)
12841 genlmsg_cancel(msg, hdr);
12842 nlmsg_free(msg);
12843
12844}
12845EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12846
348baf0e
JB		 12847void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12848{
12849 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12850 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12851 struct sk_buff *msg;
12852 void *hdr;
12853
12854 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12855 if (!msg)
12856 return;
12857
12858 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12859 if (!hdr)
12860 goto out;
12861
12862 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12863 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12864 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12865 goto out;
12866
12867 genlmsg_end(msg, hdr);
12868
12869 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12870 NL80211_MCGRP_MLME, GFP_KERNEL);
12871 return;
12872 out:
12873 nlmsg_free(msg);
12874}
12875
55682965
JB		 12876/* initialisation/exit functions */
12877
12878int nl80211_init(void)
12879{
0d63cbb5 12880 int err;
55682965 12881
2a94fe48
JB		 12882 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12883 nl80211_mcgrps);
55682965
JB		 12884 if (err)
12885 return err;
12886
026331c4
JM		 12887 err = netlink_register_notifier(&nl80211_netlink_notifier);
12888 if (err)
12889 goto err_out;
12890
55682965
JB		 12891 return 0;
12892 err_out:
12893 genl_unregister_family(&nl80211_fam);
12894 return err;
12895}
12896
12897void nl80211_exit(void)
12898{
026331c4 12899 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12900 genl_unregister_family(&nl80211_fam);
12901}
ubuntu-bionic-kernel mirror