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mac80211: fix scheduled scan rtnl deadlock
[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>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
f84f771d 33static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 34 struct genl_info *info);
f84f771d 35static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
fb4e1568
MH		 40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
55682965 44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
2a94fe48
JB		 50/* multicast groups */
51enum nl80211_multicast_groups {
52 NL80211_MCGRP_CONFIG,
53 NL80211_MCGRP_SCAN,
54 NL80211_MCGRP_REGULATORY,
55 NL80211_MCGRP_MLME,
56 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
57};
58
59static const struct genl_multicast_group nl80211_mcgrps[] = {
60 [NL80211_MCGRP_CONFIG] = { .name = "config", },
61 [NL80211_MCGRP_SCAN] = { .name = "scan", },
62 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
63 [NL80211_MCGRP_MLME] = { .name = "mlme", },
64#ifdef CONFIG_NL80211_TESTMODE
65 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
66#endif
67};
68
89a54e48
JB		 69/* returns ERR_PTR values */
70static struct wireless_dev *
71__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 72{
89a54e48
JB		 73 struct cfg80211_registered_device *rdev;
74 struct wireless_dev *result = NULL;
75 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
76 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
77 u64 wdev_id;
78 int wiphy_idx = -1;
79 int ifidx = -1;
55682965 80
5fe231e8 81 ASSERT_RTNL();
55682965 82
89a54e48
JB		 83 if (!have_ifidx && !have_wdev_id)
84 return ERR_PTR(-EINVAL);
55682965 85
89a54e48
JB		 86 if (have_ifidx)
87 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
88 if (have_wdev_id) {
89 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
90 wiphy_idx = wdev_id >> 32;
55682965
JB		 91 }
92
89a54e48
JB		 93 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
94 struct wireless_dev *wdev;
95
96 if (wiphy_net(&rdev->wiphy) != netns)
97 continue;
98
99 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
100 continue;
101
89a54e48
JB		 102 list_for_each_entry(wdev, &rdev->wdev_list, list) {
103 if (have_ifidx && wdev->netdev &&
104 wdev->netdev->ifindex == ifidx) {
105 result = wdev;
106 break;
107 }
108 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
109 result = wdev;
110 break;
111 }
112 }
89a54e48
JB		 113
114 if (result)
115 break;
116 }
117
118 if (result)
119 return result;
120 return ERR_PTR(-ENODEV);
55682965
JB		 121}
122
a9455408 123static struct cfg80211_registered_device *
878d9ec7 124__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 125{
7fee4778
JB		 126 struct cfg80211_registered_device *rdev = NULL, *tmp;
127 struct net_device *netdev;
a9455408 128
5fe231e8 129 ASSERT_RTNL();
a9455408 130
878d9ec7 131 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 132 !attrs[NL80211_ATTR_IFINDEX] &&
133 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 134 return ERR_PTR(-EINVAL);
135
878d9ec7 136 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 137 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 138 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 139
89a54e48
JB		 140 if (attrs[NL80211_ATTR_WDEV]) {
141 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
142 struct wireless_dev *wdev;
143 bool found = false;
144
145 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
146 if (tmp) {
147 /* make sure wdev exists */
89a54e48
JB		 148 list_for_each_entry(wdev, &tmp->wdev_list, list) {
149 if (wdev->identifier != (u32)wdev_id)
150 continue;
151 found = true;
152 break;
153 }
89a54e48
JB		 154
155 if (!found)
156 tmp = NULL;
157
158 if (rdev && tmp != rdev)
159 return ERR_PTR(-EINVAL);
160 rdev = tmp;
161 }
162 }
163
878d9ec7
JB		 164 if (attrs[NL80211_ATTR_IFINDEX]) {
165 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 166 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 167 if (netdev) {
168 if (netdev->ieee80211_ptr)
169 tmp = wiphy_to_dev(
170 netdev->ieee80211_ptr->wiphy);
171 else
172 tmp = NULL;
173
174 dev_put(netdev);
175
176 /* not wireless device -- return error */
177 if (!tmp)
178 return ERR_PTR(-EINVAL);
179
180 /* mismatch -- return error */
181 if (rdev && tmp != rdev)
182 return ERR_PTR(-EINVAL);
183
184 rdev = tmp;
a9455408 185 }
a9455408 186 }
a9455408 187
4f7eff10
JB		 188 if (!rdev)
189 return ERR_PTR(-ENODEV);
a9455408 190
4f7eff10
JB		 191 if (netns != wiphy_net(&rdev->wiphy))
192 return ERR_PTR(-ENODEV);
193
194 return rdev;
a9455408
JB		 195}
196
197/*
198 * This function returns a pointer to the driver
199 * that the genl_info item that is passed refers to.
a9455408
JB		 200 *
201 * The result of this can be a PTR_ERR and hence must
202 * be checked with IS_ERR() for errors.
203 */
204static struct cfg80211_registered_device *
4f7eff10 205cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 206{
5fe231e8 207 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 208}
209
55682965 210/* policy for the attributes */
b54452b0 211static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 212 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
213 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 214 .len = 20-1 },
31888487 215 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 216
72bdcf34 217 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 218 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 219 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
220 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
222
b9a5f8ca
JM		 223 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
224 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
226 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 227 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 228
229 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
230 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
231 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 232
e007b857
EP		 233 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
234 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 235
b9454e83 236 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 237 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
238 .len = WLAN_MAX_KEY_LEN },
239 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
240 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
241 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 242 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 243 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 244
245 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
246 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
247 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
248 .len = IEEE80211_MAX_DATA_LEN },
249 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 251 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
252 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
253 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
255 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 256 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 257 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 258 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 259 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 260 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 261 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 262
b2e1b302
LR		 263 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
264 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
265
9f1ba906
JM		 266 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
267 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
268 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 269 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
270 .len = NL80211_MAX_SUPP_RATES },
50b12f59 271 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 272
24bdd9f4 273 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 274 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 275
6c739419 276 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 277
278 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
279 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
280 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 281 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
282 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 283
284 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_SSID_LEN },
286 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
287 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 288 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 289 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 290 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 291 [NL80211_ATTR_STA_FLAGS2] = {
292 .len = sizeof(struct nl80211_sta_flag_update),
293 },
3f77316c 294 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 295 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
296 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 297 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
298 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
299 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 300 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 301 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 302 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
303 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 304 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
305 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 306 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 307 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
308 .len = IEEE80211_MAX_DATA_LEN },
309 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 310 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 311 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 312 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 313 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 314 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
315 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 316 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 317 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 319 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 320 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 321 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 322 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 323 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 324 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 325 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 326 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 327 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 328 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
329 .len = IEEE80211_MAX_DATA_LEN },
330 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 332 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 333 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 334 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 335 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
336 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
337 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
339 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 340 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 341 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 343 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 344 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
346 .len = NL80211_HT_CAPABILITY_LEN
347 },
1d9d9213 348 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 349 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 350 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 351 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 352 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 353 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 354 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 355 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 356 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
357 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 358 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
359 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 360 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
361 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 362 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 363 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
364 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
365 .len = NL80211_VHT_CAPABILITY_LEN,
366 },
355199e0
JM		 367 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
368 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
369 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 370 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 371 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
372 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
373 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
374 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
375 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
c01fc9ad
SD		 376 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
377 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 378 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
55682965
JB		 379};
380
e31b8213 381/* policy for the key attributes */
b54452b0 382static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 383 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 384 [NL80211_KEY_IDX] = { .type = NLA_U8 },
385 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 386 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 387 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
388 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 389 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 390 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
391};
392
393/* policy for the key default flags */
394static const struct nla_policy
395nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
396 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
397 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 398};
399
ff1b6e69
JB		 400/* policy for WoWLAN attributes */
401static const struct nla_policy
402nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
403 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
404 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
405 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
406 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 407 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
408 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
409 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
410 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 411 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
412};
413
414static const struct nla_policy
415nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
416 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
417 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
418 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
419 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
420 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
421 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
422 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
423 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
424 },
425 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
426 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
427 },
428 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
429 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
430 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 431};
432
be29b99a
AK		 433/* policy for coalesce rule attributes */
434static const struct nla_policy
435nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
436 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
437 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
438 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
439};
440
e5497d76
JB		 441/* policy for GTK rekey offload attributes */
442static const struct nla_policy
443nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
444 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
445 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
446 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
447};
448
a1f1c21c
LC		 449static const struct nla_policy
450nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 451 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 452 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 453 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 454};
455
97990a06
JB		 456static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
457 struct netlink_callback *cb,
458 struct cfg80211_registered_device **rdev,
459 struct wireless_dev **wdev)
a043897a 460{
97990a06 461 int err;
a043897a 462
97990a06 463 rtnl_lock();
a043897a 464
97990a06
JB		 465 if (!cb->args[0]) {
466 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
467 nl80211_fam.attrbuf, nl80211_fam.maxattr,
468 nl80211_policy);
469 if (err)
470 goto out_unlock;
67748893 471
97990a06
JB		 472 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
473 nl80211_fam.attrbuf);
474 if (IS_ERR(*wdev)) {
475 err = PTR_ERR(*wdev);
476 goto out_unlock;
477 }
478 *rdev = wiphy_to_dev((*wdev)->wiphy);
c319d50b
JB		 479 /* 0 is the first index - add 1 to parse only once */
480 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 481 cb->args[1] = (*wdev)->identifier;
482 } else {
c319d50b
JB		 483 /* subtract the 1 again here */
484 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 485 struct wireless_dev *tmp;
67748893 486
97990a06
JB		 487 if (!wiphy) {
488 err = -ENODEV;
489 goto out_unlock;
490 }
491 *rdev = wiphy_to_dev(wiphy);
492 *wdev = NULL;
67748893 493
97990a06
JB		 494 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
495 if (tmp->identifier == cb->args[1]) {
496 *wdev = tmp;
497 break;
498 }
499 }
67748893 500
97990a06
JB		 501 if (!*wdev) {
502 err = -ENODEV;
503 goto out_unlock;
504 }
67748893
JB		 505 }
506
67748893 507 return 0;
97990a06 508 out_unlock:
67748893
JB		 509 rtnl_unlock();
510 return err;
511}
512
97990a06 513static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 514{
67748893
JB		 515 rtnl_unlock();
516}
517
f4a11bb0
JB		 518/* IE validation */
519static bool is_valid_ie_attr(const struct nlattr *attr)
520{
521 const u8 *pos;
522 int len;
523
524 if (!attr)
525 return true;
526
527 pos = nla_data(attr);
528 len = nla_len(attr);
529
530 while (len) {
531 u8 elemlen;
532
533 if (len < 2)
534 return false;
535 len -= 2;
536
537 elemlen = pos[1];
538 if (elemlen > len)
539 return false;
540
541 len -= elemlen;
542 pos += 2 + elemlen;
543 }
544
545 return true;
546}
547
55682965 548/* message building helper */
15e47304 549static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 550 int flags, u8 cmd)
551{
552 /* since there is no private header just add the generic one */
15e47304 553 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 554}
555
5dab3b8a 556static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 557 struct ieee80211_channel *chan,
558 bool large)
5dab3b8a 559{
9360ffd1
DM		 560 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
561 chan->center_freq))
562 goto nla_put_failure;
5dab3b8a 563
9360ffd1
DM		 564 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
565 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
566 goto nla_put_failure;
567 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
568 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
569 goto nla_put_failure;
570 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
571 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
572 goto nla_put_failure;
cdc89b97
JB		 573 if (chan->flags & IEEE80211_CHAN_RADAR) {
574 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
575 goto nla_put_failure;
576 if (large) {
577 u32 time;
578
579 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
580
581 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
582 chan->dfs_state))
583 goto nla_put_failure;
584 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
585 time))
586 goto nla_put_failure;
587 }
588 }
5dab3b8a 589
fe1abafd
JB		 590 if (large) {
591 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
592 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
593 goto nla_put_failure;
594 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
595 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
596 goto nla_put_failure;
597 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
598 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
599 goto nla_put_failure;
600 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
601 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
602 goto nla_put_failure;
603 }
604
9360ffd1
DM		 605 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
606 DBM_TO_MBM(chan->max_power)))
607 goto nla_put_failure;
5dab3b8a
LR		 608
609 return 0;
610
611 nla_put_failure:
612 return -ENOBUFS;
613}
614
55682965
JB		 615/* netlink command implementations */
616
b9454e83
JB		 617struct key_parse {
618 struct key_params p;
619 int idx;
e31b8213 620 int type;
b9454e83 621 bool def, defmgmt;
dbd2fd65 622 bool def_uni, def_multi;
b9454e83
JB		 623};
624
625static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
626{
627 struct nlattr *tb[NL80211_KEY_MAX + 1];
628 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
629 nl80211_key_policy);
630 if (err)
631 return err;
632
633 k->def = !!tb[NL80211_KEY_DEFAULT];
634 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
635
dbd2fd65
JB		 636 if (k->def) {
637 k->def_uni = true;
638 k->def_multi = true;
639 }
640 if (k->defmgmt)
641 k->def_multi = true;
642
b9454e83
JB		 643 if (tb[NL80211_KEY_IDX])
644 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
645
646 if (tb[NL80211_KEY_DATA]) {
647 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
648 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
649 }
650
651 if (tb[NL80211_KEY_SEQ]) {
652 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
653 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
654 }
655
656 if (tb[NL80211_KEY_CIPHER])
657 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
658
e31b8213
JB		 659 if (tb[NL80211_KEY_TYPE]) {
660 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
661 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
662 return -EINVAL;
663 }
664
dbd2fd65
JB		 665 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
666 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 667 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
668 tb[NL80211_KEY_DEFAULT_TYPES],
669 nl80211_key_default_policy);
dbd2fd65
JB		 670 if (err)
671 return err;
672
673 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
674 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
675 }
676
b9454e83
JB		 677 return 0;
678}
679
680static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
681{
682 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
683 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
684 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
685 }
686
687 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
688 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
689 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
690 }
691
692 if (info->attrs[NL80211_ATTR_KEY_IDX])
693 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
694
695 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
696 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
697
698 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
699 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
700
dbd2fd65
JB		 701 if (k->def) {
702 k->def_uni = true;
703 k->def_multi = true;
704 }
705 if (k->defmgmt)
706 k->def_multi = true;
707
e31b8213
JB		 708 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
709 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
710 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
711 return -EINVAL;
712 }
713
dbd2fd65
JB		 714 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
715 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
716 int err = nla_parse_nested(
717 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
718 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
719 nl80211_key_default_policy);
720 if (err)
721 return err;
722
723 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
724 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
725 }
726
b9454e83
JB		 727 return 0;
728}
729
730static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
731{
732 int err;
733
734 memset(k, 0, sizeof(*k));
735 k->idx = -1;
e31b8213 736 k->type = -1;
b9454e83
JB		 737
738 if (info->attrs[NL80211_ATTR_KEY])
739 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
740 else
741 err = nl80211_parse_key_old(info, k);
742
743 if (err)
744 return err;
745
746 if (k->def && k->defmgmt)
747 return -EINVAL;
748
dbd2fd65
JB		 749 if (k->defmgmt) {
750 if (k->def_uni || !k->def_multi)
751 return -EINVAL;
752 }
753
b9454e83
JB		 754 if (k->idx != -1) {
755 if (k->defmgmt) {
756 if (k->idx < 4 || k->idx > 5)
757 return -EINVAL;
758 } else if (k->def) {
759 if (k->idx < 0 || k->idx > 3)
760 return -EINVAL;
761 } else {
762 if (k->idx < 0 || k->idx > 5)
763 return -EINVAL;
764 }
765 }
766
767 return 0;
768}
769
fffd0934
JB		 770static struct cfg80211_cached_keys *
771nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 772 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 773{
774 struct key_parse parse;
775 struct nlattr *key;
776 struct cfg80211_cached_keys *result;
777 int rem, err, def = 0;
778
779 result = kzalloc(sizeof(*result), GFP_KERNEL);
780 if (!result)
781 return ERR_PTR(-ENOMEM);
782
783 result->def = -1;
784 result->defmgmt = -1;
785
786 nla_for_each_nested(key, keys, rem) {
787 memset(&parse, 0, sizeof(parse));
788 parse.idx = -1;
789
790 err = nl80211_parse_key_new(key, &parse);
791 if (err)
792 goto error;
793 err = -EINVAL;
794 if (!parse.p.key)
795 goto error;
796 if (parse.idx < 0 || parse.idx > 4)
797 goto error;
798 if (parse.def) {
799 if (def)
800 goto error;
801 def = 1;
802 result->def = parse.idx;
dbd2fd65
JB		 803 if (!parse.def_uni || !parse.def_multi)
804 goto error;
fffd0934
JB		 805 } else if (parse.defmgmt)
806 goto error;
807 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 808 parse.idx, false, NULL);
fffd0934
JB		 809 if (err)
810 goto error;
811 result->params[parse.idx].cipher = parse.p.cipher;
812 result->params[parse.idx].key_len = parse.p.key_len;
813 result->params[parse.idx].key = result->data[parse.idx];
814 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 815
816 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
817 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
818 if (no_ht)
819 *no_ht = true;
820 }
fffd0934
JB		 821 }
822
823 return result;
824 error:
825 kfree(result);
826 return ERR_PTR(err);
827}
828
829static int nl80211_key_allowed(struct wireless_dev *wdev)
830{
831 ASSERT_WDEV_LOCK(wdev);
832
fffd0934
JB		 833 switch (wdev->iftype) {
834 case NL80211_IFTYPE_AP:
835 case NL80211_IFTYPE_AP_VLAN:
074ac8df 836 case NL80211_IFTYPE_P2P_GO:
ff973af7 837 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 838 break;
839 case NL80211_IFTYPE_ADHOC:
fffd0934 840 case NL80211_IFTYPE_STATION:
074ac8df 841 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 842 if (!wdev->current_bss)
fffd0934
JB		 843 return -ENOLINK;
844 break;
845 default:
846 return -EINVAL;
847 }
848
849 return 0;
850}
851
7527a782
JB		 852static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
853{
854 struct nlattr *nl_modes = nla_nest_start(msg, attr);
855 int i;
856
857 if (!nl_modes)
858 goto nla_put_failure;
859
860 i = 0;
861 while (ifmodes) {
9360ffd1
DM		 862 if ((ifmodes & 1) && nla_put_flag(msg, i))
863 goto nla_put_failure;
7527a782
JB		 864 ifmodes >>= 1;
865 i++;
866 }
867
868 nla_nest_end(msg, nl_modes);
869 return 0;
870
871nla_put_failure:
872 return -ENOBUFS;
873}
874
875static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 876 struct sk_buff *msg,
877 bool large)
7527a782
JB		 878{
879 struct nlattr *nl_combis;
880 int i, j;
881
882 nl_combis = nla_nest_start(msg,
883 NL80211_ATTR_INTERFACE_COMBINATIONS);
884 if (!nl_combis)
885 goto nla_put_failure;
886
887 for (i = 0; i < wiphy->n_iface_combinations; i++) {
888 const struct ieee80211_iface_combination *c;
889 struct nlattr *nl_combi, *nl_limits;
890
891 c = &wiphy->iface_combinations[i];
892
893 nl_combi = nla_nest_start(msg, i + 1);
894 if (!nl_combi)
895 goto nla_put_failure;
896
897 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
898 if (!nl_limits)
899 goto nla_put_failure;
900
901 for (j = 0; j < c->n_limits; j++) {
902 struct nlattr *nl_limit;
903
904 nl_limit = nla_nest_start(msg, j + 1);
905 if (!nl_limit)
906 goto nla_put_failure;
9360ffd1
DM		 907 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
908 c->limits[j].max))
909 goto nla_put_failure;
7527a782
JB		 910 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
911 c->limits[j].types))
912 goto nla_put_failure;
913 nla_nest_end(msg, nl_limit);
914 }
915
916 nla_nest_end(msg, nl_limits);
917
9360ffd1
DM		 918 if (c->beacon_int_infra_match &&
919 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
920 goto nla_put_failure;
921 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
922 c->num_different_channels) ||
923 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
924 c->max_interfaces))
925 goto nla_put_failure;
cdc89b97
JB		 926 if (large &&
927 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
928 c->radar_detect_widths))
929 goto nla_put_failure;
7527a782
JB		 930
931 nla_nest_end(msg, nl_combi);
932 }
933
934 nla_nest_end(msg, nl_combis);
935
936 return 0;
937nla_put_failure:
938 return -ENOBUFS;
939}
940
3713b4e3 941#ifdef CONFIG_PM
b56cf720
JB		 942static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
943 struct sk_buff *msg)
944{
964dc9e2 945 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 946 struct nlattr *nl_tcp;
947
948 if (!tcp)
949 return 0;
950
951 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
952 if (!nl_tcp)
953 return -ENOBUFS;
954
955 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
956 tcp->data_payload_max))
957 return -ENOBUFS;
958
959 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
960 tcp->data_payload_max))
961 return -ENOBUFS;
962
963 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
964 return -ENOBUFS;
965
966 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
967 sizeof(*tcp->tok), tcp->tok))
968 return -ENOBUFS;
969
970 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
971 tcp->data_interval_max))
972 return -ENOBUFS;
973
974 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
975 tcp->wake_payload_max))
976 return -ENOBUFS;
977
978 nla_nest_end(msg, nl_tcp);
979 return 0;
980}
981
3713b4e3 982static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 983 struct cfg80211_registered_device *dev,
984 bool large)
55682965 985{
3713b4e3 986 struct nlattr *nl_wowlan;
55682965 987
964dc9e2 988 if (!dev->wiphy.wowlan)
3713b4e3 989 return 0;
55682965 990
3713b4e3
JB		 991 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
992 if (!nl_wowlan)
993 return -ENOBUFS;
9360ffd1 994
964dc9e2 995 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 996 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
964dc9e2 997 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 998 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
964dc9e2 999 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1000 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
964dc9e2 1001 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1002 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
964dc9e2 1003 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1004 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
964dc9e2 1005 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1006 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
964dc9e2 1007 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1008 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
964dc9e2 1009 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1010 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1011 return -ENOBUFS;
9360ffd1 1012
964dc9e2 1013 if (dev->wiphy.wowlan->n_patterns) {
50ac6607 1014 struct nl80211_pattern_support pat = {
964dc9e2
JB		 1015 .max_patterns = dev->wiphy.wowlan->n_patterns,
1016 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
1017 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
1018 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1019 };
9360ffd1 1020
3713b4e3
JB		 1021 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1022 sizeof(pat), &pat))
1023 return -ENOBUFS;
1024 }
9360ffd1 1025
b56cf720
JB		 1026 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1027 return -ENOBUFS;
1028
3713b4e3 1029 nla_nest_end(msg, nl_wowlan);
9360ffd1 1030
3713b4e3
JB		 1031 return 0;
1032}
1033#endif
9360ffd1 1034
be29b99a
AK		 1035static int nl80211_send_coalesce(struct sk_buff *msg,
1036 struct cfg80211_registered_device *dev)
1037{
1038 struct nl80211_coalesce_rule_support rule;
1039
1040 if (!dev->wiphy.coalesce)
1041 return 0;
1042
1043 rule.max_rules = dev->wiphy.coalesce->n_rules;
1044 rule.max_delay = dev->wiphy.coalesce->max_delay;
1045 rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
1046 rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
1047 rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
1048 rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
1049
1050 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1051 return -ENOBUFS;
1052
1053 return 0;
1054}
1055
3713b4e3
JB		 1056static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1057 struct ieee80211_supported_band *sband)
1058{
1059 struct nlattr *nl_rates, *nl_rate;
1060 struct ieee80211_rate *rate;
1061 int i;
87bbbe22 1062
3713b4e3
JB		 1063 /* add HT info */
1064 if (sband->ht_cap.ht_supported &&
1065 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1066 sizeof(sband->ht_cap.mcs),
1067 &sband->ht_cap.mcs) ||
1068 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1069 sband->ht_cap.cap) ||
1070 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1071 sband->ht_cap.ampdu_factor) ||
1072 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1073 sband->ht_cap.ampdu_density)))
1074 return -ENOBUFS;
afe0cbf8 1075
3713b4e3
JB		 1076 /* add VHT info */
1077 if (sband->vht_cap.vht_supported &&
1078 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1079 sizeof(sband->vht_cap.vht_mcs),
1080 &sband->vht_cap.vht_mcs) ||
1081 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1082 sband->vht_cap.cap)))
1083 return -ENOBUFS;
f59ac048 1084
3713b4e3
JB		 1085 /* add bitrates */
1086 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1087 if (!nl_rates)
1088 return -ENOBUFS;
ee688b00 1089
3713b4e3
JB		 1090 for (i = 0; i < sband->n_bitrates; i++) {
1091 nl_rate = nla_nest_start(msg, i);
1092 if (!nl_rate)
1093 return -ENOBUFS;
ee688b00 1094
3713b4e3
JB		 1095 rate = &sband->bitrates[i];
1096 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1097 rate->bitrate))
1098 return -ENOBUFS;
1099 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1100 nla_put_flag(msg,
1101 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1102 return -ENOBUFS;
ee688b00 1103
3713b4e3
JB		 1104 nla_nest_end(msg, nl_rate);
1105 }
d51626df 1106
3713b4e3 1107 nla_nest_end(msg, nl_rates);
bf0c111e 1108
3713b4e3
JB		 1109 return 0;
1110}
ee688b00 1111
3713b4e3
JB		 1112static int
1113nl80211_send_mgmt_stypes(struct sk_buff *msg,
1114 const struct ieee80211_txrx_stypes *mgmt_stypes)
1115{
1116 u16 stypes;
1117 struct nlattr *nl_ftypes, *nl_ifs;
1118 enum nl80211_iftype ift;
1119 int i;
ee688b00 1120
3713b4e3
JB		 1121 if (!mgmt_stypes)
1122 return 0;
5dab3b8a 1123
3713b4e3
JB		 1124 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1125 if (!nl_ifs)
1126 return -ENOBUFS;
e2f367f2 1127
3713b4e3
JB		 1128 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1129 nl_ftypes = nla_nest_start(msg, ift);
1130 if (!nl_ftypes)
1131 return -ENOBUFS;
1132 i = 0;
1133 stypes = mgmt_stypes[ift].tx;
1134 while (stypes) {
1135 if ((stypes & 1) &&
1136 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1137 (i << 4) | IEEE80211_FTYPE_MGMT))
1138 return -ENOBUFS;
1139 stypes >>= 1;
1140 i++;
ee688b00 1141 }
3713b4e3
JB		 1142 nla_nest_end(msg, nl_ftypes);
1143 }
ee688b00 1144
3713b4e3 1145 nla_nest_end(msg, nl_ifs);
ee688b00 1146
3713b4e3
JB		 1147 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1148 if (!nl_ifs)
1149 return -ENOBUFS;
ee688b00 1150
3713b4e3
JB		 1151 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1152 nl_ftypes = nla_nest_start(msg, ift);
1153 if (!nl_ftypes)
1154 return -ENOBUFS;
1155 i = 0;
1156 stypes = mgmt_stypes[ift].rx;
1157 while (stypes) {
1158 if ((stypes & 1) &&
1159 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1160 (i << 4) | IEEE80211_FTYPE_MGMT))
1161 return -ENOBUFS;
1162 stypes >>= 1;
1163 i++;
1164 }
1165 nla_nest_end(msg, nl_ftypes);
1166 }
1167 nla_nest_end(msg, nl_ifs);
ee688b00 1168
3713b4e3
JB		 1169 return 0;
1170}
ee688b00 1171
86e8cf98
JB		 1172struct nl80211_dump_wiphy_state {
1173 s64 filter_wiphy;
1174 long start;
1175 long split_start, band_start, chan_start;
1176 bool split;
1177};
1178
3713b4e3
JB		 1179static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1180 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1181 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1182{
1183 void *hdr;
1184 struct nlattr *nl_bands, *nl_band;
1185 struct nlattr *nl_freqs, *nl_freq;
1186 struct nlattr *nl_cmds;
1187 enum ieee80211_band band;
1188 struct ieee80211_channel *chan;
1189 int i;
1190 const struct ieee80211_txrx_stypes *mgmt_stypes =
1191 dev->wiphy.mgmt_stypes;
fe1abafd 1192 u32 features;
ee688b00 1193
3713b4e3
JB		 1194 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1195 if (!hdr)
1196 return -ENOBUFS;
ee688b00 1197
86e8cf98
JB		 1198 if (WARN_ON(!state))
1199 return -EINVAL;
ee688b00 1200
3713b4e3
JB		 1201 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1202 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1203 wiphy_name(&dev->wiphy)) ||
1204 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1205 cfg80211_rdev_list_generation))
8fdc621d
JB		 1206 goto nla_put_failure;
1207
86e8cf98 1208 switch (state->split_start) {
3713b4e3
JB		 1209 case 0:
1210 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1211 dev->wiphy.retry_short) ||
1212 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1213 dev->wiphy.retry_long) ||
1214 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1215 dev->wiphy.frag_threshold) ||
1216 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1217 dev->wiphy.rts_threshold) ||
1218 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1219 dev->wiphy.coverage_class) ||
1220 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1221 dev->wiphy.max_scan_ssids) ||
1222 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1223 dev->wiphy.max_sched_scan_ssids) ||
1224 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1225 dev->wiphy.max_scan_ie_len) ||
1226 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1227 dev->wiphy.max_sched_scan_ie_len) ||
1228 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1229 dev->wiphy.max_match_sets))
9360ffd1 1230 goto nla_put_failure;
3713b4e3
JB		 1231
1232 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1233 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1234 goto nla_put_failure;
3713b4e3
JB		 1235 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1236 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1237 goto nla_put_failure;
1238 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1239 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1240 goto nla_put_failure;
1241 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1242 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1243 goto nla_put_failure;
1244 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1245 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1246 goto nla_put_failure;
1247 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1248 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1249 goto nla_put_failure;
2f301ab2
SW		 1250 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1251 nla_put_flag(msg, WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1252 goto nla_put_failure;
8fdc621d 1253
86e8cf98
JB		 1254 state->split_start++;
1255 if (state->split)
3713b4e3
JB		 1256 break;
1257 case 1:
1258 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1259 sizeof(u32) * dev->wiphy.n_cipher_suites,
1260 dev->wiphy.cipher_suites))
1261 goto nla_put_failure;
4745fc09 1262
3713b4e3
JB		 1263 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1264 dev->wiphy.max_num_pmkids))
1265 goto nla_put_failure;
b23aa676 1266
3713b4e3
JB		 1267 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1268 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1269 goto nla_put_failure;
b23aa676 1270
3713b4e3
JB		 1271 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1272 dev->wiphy.available_antennas_tx) ||
1273 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1274 dev->wiphy.available_antennas_rx))
9360ffd1 1275 goto nla_put_failure;
b23aa676 1276
3713b4e3
JB		 1277 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1278 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1279 dev->wiphy.probe_resp_offload))
1280 goto nla_put_failure;
8fdc621d 1281
3713b4e3
JB		 1282 if ((dev->wiphy.available_antennas_tx ||
1283 dev->wiphy.available_antennas_rx) &&
1284 dev->ops->get_antenna) {
1285 u32 tx_ant = 0, rx_ant = 0;
1286 int res;
1287 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1288 if (!res) {
1289 if (nla_put_u32(msg,
1290 NL80211_ATTR_WIPHY_ANTENNA_TX,
1291 tx_ant) ||
1292 nla_put_u32(msg,
1293 NL80211_ATTR_WIPHY_ANTENNA_RX,
1294 rx_ant))
1295 goto nla_put_failure;
1296 }
1297 }
a293911d 1298
86e8cf98
JB		 1299 state->split_start++;
1300 if (state->split)
3713b4e3
JB		 1301 break;
1302 case 2:
1303 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1304 dev->wiphy.interface_modes))
1305 goto nla_put_failure;
86e8cf98
JB		 1306 state->split_start++;
1307 if (state->split)
3713b4e3
JB		 1308 break;
1309 case 3:
1310 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1311 if (!nl_bands)
1312 goto nla_put_failure;
f7ca38df 1313
86e8cf98
JB		 1314 for (band = state->band_start;
1315 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1316 struct ieee80211_supported_band *sband;
2e161f78 1317
3713b4e3 1318 sband = dev->wiphy.bands[band];
2e161f78 1319
3713b4e3
JB		 1320 if (!sband)
1321 continue;
1322
1323 nl_band = nla_nest_start(msg, band);
1324 if (!nl_band)
2e161f78 1325 goto nla_put_failure;
3713b4e3 1326
86e8cf98 1327 switch (state->chan_start) {
3713b4e3
JB		 1328 case 0:
1329 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1330 goto nla_put_failure;
86e8cf98
JB		 1331 state->chan_start++;
1332 if (state->split)
3713b4e3
JB		 1333 break;
1334 default:
1335 /* add frequencies */
1336 nl_freqs = nla_nest_start(
1337 msg, NL80211_BAND_ATTR_FREQS);
1338 if (!nl_freqs)
1339 goto nla_put_failure;
1340
86e8cf98 1341 for (i = state->chan_start - 1;
3713b4e3
JB		 1342 i < sband->n_channels;
1343 i++) {
1344 nl_freq = nla_nest_start(msg, i);
1345 if (!nl_freq)
1346 goto nla_put_failure;
1347
1348 chan = &sband->channels[i];
1349
86e8cf98
JB		 1350 if (nl80211_msg_put_channel(
1351 msg, chan,
1352 state->split))
3713b4e3
JB		 1353 goto nla_put_failure;
1354
1355 nla_nest_end(msg, nl_freq);
86e8cf98 1356 if (state->split)
3713b4e3
JB		 1357 break;
1358 }
1359 if (i < sband->n_channels)
86e8cf98 1360 state->chan_start = i + 2;
3713b4e3 1361 else
86e8cf98 1362 state->chan_start = 0;
3713b4e3
JB		 1363 nla_nest_end(msg, nl_freqs);
1364 }
1365
1366 nla_nest_end(msg, nl_band);
1367
86e8cf98 1368 if (state->split) {
3713b4e3 1369 /* start again here */
86e8cf98 1370 if (state->chan_start)
3713b4e3
JB		 1371 band--;
1372 break;
2e161f78 1373 }
2e161f78 1374 }
3713b4e3 1375 nla_nest_end(msg, nl_bands);
2e161f78 1376
3713b4e3 1377 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1378 state->band_start = band + 1;
3713b4e3 1379 else
86e8cf98 1380 state->band_start = 0;
74b70a4e 1381
3713b4e3 1382 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1383 if (state->band_start == 0 && state->chan_start == 0)
1384 state->split_start++;
1385 if (state->split)
3713b4e3
JB		 1386 break;
1387 case 4:
1388 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1389 if (!nl_cmds)
2e161f78
JB		 1390 goto nla_put_failure;
1391
3713b4e3
JB		 1392 i = 0;
1393#define CMD(op, n) \
1394 do { \
1395 if (dev->ops->op) { \
1396 i++; \
1397 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1398 goto nla_put_failure; \
1399 } \
1400 } while (0)
1401
1402 CMD(add_virtual_intf, NEW_INTERFACE);
1403 CMD(change_virtual_intf, SET_INTERFACE);
1404 CMD(add_key, NEW_KEY);
1405 CMD(start_ap, START_AP);
1406 CMD(add_station, NEW_STATION);
1407 CMD(add_mpath, NEW_MPATH);
1408 CMD(update_mesh_config, SET_MESH_CONFIG);
1409 CMD(change_bss, SET_BSS);
1410 CMD(auth, AUTHENTICATE);
1411 CMD(assoc, ASSOCIATE);
1412 CMD(deauth, DEAUTHENTICATE);
1413 CMD(disassoc, DISASSOCIATE);
1414 CMD(join_ibss, JOIN_IBSS);
1415 CMD(join_mesh, JOIN_MESH);
1416 CMD(set_pmksa, SET_PMKSA);
1417 CMD(del_pmksa, DEL_PMKSA);
1418 CMD(flush_pmksa, FLUSH_PMKSA);
1419 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1420 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1421 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1422 CMD(mgmt_tx, FRAME);
1423 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1424 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1425 i++;
1426 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1427 goto nla_put_failure;
2e161f78 1428 }
3713b4e3
JB		 1429 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1430 dev->ops->join_mesh) {
1431 i++;
1432 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1433 goto nla_put_failure;
1434 }
1435 CMD(set_wds_peer, SET_WDS_PEER);
1436 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1437 CMD(tdls_mgmt, TDLS_MGMT);
1438 CMD(tdls_oper, TDLS_OPER);
1439 }
1440 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1441 CMD(sched_scan_start, START_SCHED_SCAN);
1442 CMD(probe_client, PROBE_CLIENT);
1443 CMD(set_noack_map, SET_NOACK_MAP);
1444 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1445 i++;
1446 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1447 goto nla_put_failure;
1448 }
1449 CMD(start_p2p_device, START_P2P_DEVICE);
1450 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1451 if (state->split) {
5de17984
AS		 1452 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1453 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
16ef1fe2
SW		 1454 if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1455 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1456 }
2e161f78 1457
3713b4e3
JB		 1458#ifdef CONFIG_NL80211_TESTMODE
1459 CMD(testmode_cmd, TESTMODE);
1460#endif
ff1b6e69 1461
3713b4e3 1462#undef CMD
ff1b6e69 1463
3713b4e3
JB		 1464 if (dev->ops->connect || dev->ops->auth) {
1465 i++;
1466 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1467 goto nla_put_failure;
ff1b6e69
JB		 1468 }
1469
3713b4e3
JB		 1470 if (dev->ops->disconnect || dev->ops->deauth) {
1471 i++;
1472 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1473 goto nla_put_failure;
1474 }
1475
1476 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1477 state->split_start++;
1478 if (state->split)
3713b4e3
JB		 1479 break;
1480 case 5:
1481 if (dev->ops->remain_on_channel &&
1482 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1483 nla_put_u32(msg,
1484 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1485 dev->wiphy.max_remain_on_channel_duration))
1486 goto nla_put_failure;
1487
1488 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1489 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1490 goto nla_put_failure;
1491
1492 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1493 goto nla_put_failure;
86e8cf98
JB		 1494 state->split_start++;
1495 if (state->split)
3713b4e3
JB		 1496 break;
1497 case 6:
1498#ifdef CONFIG_PM
86e8cf98 1499 if (nl80211_send_wowlan(msg, dev, state->split))
3713b4e3 1500 goto nla_put_failure;
86e8cf98
JB		 1501 state->split_start++;
1502 if (state->split)
3713b4e3
JB		 1503 break;
1504#else
86e8cf98 1505 state->split_start++;
dfb89c56 1506#endif
3713b4e3
JB		 1507 case 7:
1508 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1509 dev->wiphy.software_iftypes))
1510 goto nla_put_failure;
ff1b6e69 1511
86e8cf98
JB		 1512 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1513 state->split))
3713b4e3 1514 goto nla_put_failure;
7527a782 1515
86e8cf98
JB		 1516 state->split_start++;
1517 if (state->split)
3713b4e3
JB		 1518 break;
1519 case 8:
1520 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1521 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1522 dev->wiphy.ap_sme_capa))
1523 goto nla_put_failure;
7527a782 1524
fe1abafd
JB		 1525 features = dev->wiphy.features;
1526 /*
1527 * We can only add the per-channel limit information if the
1528 * dump is split, otherwise it makes it too big. Therefore
1529 * only advertise it in that case.
1530 */
86e8cf98 1531 if (state->split)
fe1abafd
JB		 1532 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1533 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1534 goto nla_put_failure;
562a7480 1535
3713b4e3
JB		 1536 if (dev->wiphy.ht_capa_mod_mask &&
1537 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1538 sizeof(*dev->wiphy.ht_capa_mod_mask),
1539 dev->wiphy.ht_capa_mod_mask))
1540 goto nla_put_failure;
1f074bd8 1541
3713b4e3
JB		 1542 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1543 dev->wiphy.max_acl_mac_addrs &&
1544 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1545 dev->wiphy.max_acl_mac_addrs))
1546 goto nla_put_failure;
7e7c8926 1547
3713b4e3
JB		 1548 /*
1549 * Any information below this point is only available to
1550 * applications that can deal with it being split. This
1551 * helps ensure that newly added capabilities don't break
1552 * older tools by overrunning their buffers.
1553 *
1554 * We still increment split_start so that in the split
1555 * case we'll continue with more data in the next round,
1556 * but break unconditionally so unsplit data stops here.
1557 */
86e8cf98 1558 state->split_start++;
3713b4e3
JB		 1559 break;
1560 case 9:
fe1abafd
JB		 1561 if (dev->wiphy.extended_capabilities &&
1562 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1563 dev->wiphy.extended_capabilities_len,
1564 dev->wiphy.extended_capabilities) ||
1565 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1566 dev->wiphy.extended_capabilities_len,
1567 dev->wiphy.extended_capabilities_mask)))
1568 goto nla_put_failure;
a50df0c4 1569
ee2aca34
JB		 1570 if (dev->wiphy.vht_capa_mod_mask &&
1571 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1572 sizeof(*dev->wiphy.vht_capa_mod_mask),
1573 dev->wiphy.vht_capa_mod_mask))
1574 goto nla_put_failure;
1575
be29b99a
AK		 1576 state->split_start++;
1577 break;
1578 case 10:
1579 if (nl80211_send_coalesce(msg, dev))
1580 goto nla_put_failure;
1581
3713b4e3 1582 /* done */
86e8cf98 1583 state->split_start = 0;
3713b4e3
JB		 1584 break;
1585 }
55682965
JB		 1586 return genlmsg_end(msg, hdr);
1587
1588 nla_put_failure:
bc3ed28c
TG		 1589 genlmsg_cancel(msg, hdr);
1590 return -EMSGSIZE;
55682965
JB		 1591}
1592
86e8cf98
JB		 1593static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1594 struct netlink_callback *cb,
1595 struct nl80211_dump_wiphy_state *state)
1596{
1597 struct nlattr **tb = nl80211_fam.attrbuf;
1598 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1599 tb, nl80211_fam.maxattr, nl80211_policy);
1600 /* ignore parse errors for backward compatibility */
1601 if (ret)
1602 return 0;
1603
1604 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1605 if (tb[NL80211_ATTR_WIPHY])
1606 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1607 if (tb[NL80211_ATTR_WDEV])
1608 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1609 if (tb[NL80211_ATTR_IFINDEX]) {
1610 struct net_device *netdev;
1611 struct cfg80211_registered_device *rdev;
1612 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1613
1614 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1615 if (!netdev)
1616 return -ENODEV;
1617 if (netdev->ieee80211_ptr) {
1618 rdev = wiphy_to_dev(
1619 netdev->ieee80211_ptr->wiphy);
1620 state->filter_wiphy = rdev->wiphy_idx;
1621 }
1622 dev_put(netdev);
1623 }
1624
1625 return 0;
1626}
1627
55682965
JB		 1628static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1629{
645e77de 1630 int idx = 0, ret;
86e8cf98 1631 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
55682965 1632 struct cfg80211_registered_device *dev;
3a5a423b 1633
5fe231e8 1634 rtnl_lock();
86e8cf98
JB		 1635 if (!state) {
1636 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1637 if (!state) {
1638 rtnl_unlock();
86e8cf98 1639 return -ENOMEM;
3713b4e3 1640 }
86e8cf98
JB		 1641 state->filter_wiphy = -1;
1642 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1643 if (ret) {
1644 kfree(state);
1645 rtnl_unlock();
1646 return ret;
3713b4e3 1647 }
86e8cf98 1648 cb->args[0] = (long)state;
3713b4e3
JB		 1649 }
1650
79c97e97 1651 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1652 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1653 continue;
86e8cf98 1654 if (++idx <= state->start)
55682965 1655 continue;
86e8cf98
JB		 1656 if (state->filter_wiphy != -1 &&
1657 state->filter_wiphy != dev->wiphy_idx)
3713b4e3
JB		 1658 continue;
1659 /* attempt to fit multiple wiphy data chunks into the skb */
1660 do {
1661 ret = nl80211_send_wiphy(dev, skb,
1662 NETLINK_CB(cb->skb).portid,
1663 cb->nlh->nlmsg_seq,
86e8cf98 1664 NLM_F_MULTI, state);
3713b4e3
JB		 1665 if (ret < 0) {
1666 /*
1667 * If sending the wiphy data didn't fit (ENOBUFS
1668 * or EMSGSIZE returned), this SKB is still
1669 * empty (so it's not too big because another
1670 * wiphy dataset is already in the skb) and
1671 * we've not tried to adjust the dump allocation
1672 * yet ... then adjust the alloc size to be
1673 * bigger, and return 1 but with the empty skb.
1674 * This results in an empty message being RX'ed
1675 * in userspace, but that is ignored.
1676 *
1677 * We can then retry with the larger buffer.
1678 */
1679 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1680 !skb->len &&
1681 cb->min_dump_alloc < 4096) {
1682 cb->min_dump_alloc = 4096;
d98cae64 1683 rtnl_unlock();
3713b4e3
JB		 1684 return 1;
1685 }
1686 idx--;
1687 break;
645e77de 1688 }
86e8cf98 1689 } while (state->split_start > 0);
3713b4e3 1690 break;
55682965 1691 }
5fe231e8 1692 rtnl_unlock();
55682965 1693
86e8cf98 1694 state->start = idx;
55682965
JB		 1695
1696 return skb->len;
1697}
1698
86e8cf98
JB		 1699static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1700{
1701 kfree((void *)cb->args[0]);
1702 return 0;
1703}
1704
55682965
JB		 1705static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1706{
1707 struct sk_buff *msg;
4c476991 1708 struct cfg80211_registered_device *dev = info->user_ptr[0];
86e8cf98 1709 struct nl80211_dump_wiphy_state state = {};
55682965 1710
645e77de 1711 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1712 if (!msg)
4c476991 1713 return -ENOMEM;
55682965 1714
3713b4e3 1715 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1716 &state) < 0) {
4c476991
JB		 1717 nlmsg_free(msg);
1718 return -ENOBUFS;
1719 }
55682965 1720
134e6375 1721 return genlmsg_reply(msg, info);
55682965
JB		 1722}
1723
31888487
JM		 1724static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1725 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1726 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1727 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1728 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1729 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1730};
1731
1732static int parse_txq_params(struct nlattr *tb[],
1733 struct ieee80211_txq_params *txq_params)
1734{
a3304b0a 1735 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1736 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1737 !tb[NL80211_TXQ_ATTR_AIFS])
1738 return -EINVAL;
1739
a3304b0a 1740 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1741 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1742 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1743 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1744 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1745
a3304b0a
JB		 1746 if (txq_params->ac >= NL80211_NUM_ACS)
1747 return -EINVAL;
1748
31888487
JM		 1749 return 0;
1750}
1751
f444de05
JB		 1752static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1753{
1754 /*
cc1d2806
JB		 1755 * You can only set the channel explicitly for WDS interfaces,
1756 * all others have their channel managed via their respective
1757 * "establish a connection" command (connect, join, ...)
1758 *
1759 * For AP/GO and mesh mode, the channel can be set with the
1760 * channel userspace API, but is only stored and passed to the
1761 * low-level driver when the AP starts or the mesh is joined.
1762 * This is for backward compatibility, userspace can also give
1763 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1764 *
1765 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1766 * whatever else is going on, so they have their own special
1767 * operation to set the monitor channel if possible.
f444de05
JB		 1768 */
1769 return !wdev ||
1770 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1771 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1772 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1773 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1774}
1775
683b6d3b
JB		 1776static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1777 struct genl_info *info,
1778 struct cfg80211_chan_def *chandef)
1779{
dbeca2ea 1780 u32 control_freq;
683b6d3b
JB		 1781
1782 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1783 return -EINVAL;
1784
1785 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1786
1787 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1788 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1789 chandef->center_freq1 = control_freq;
1790 chandef->center_freq2 = 0;
683b6d3b
JB		 1791
1792 /* Primary channel not allowed */
1793 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1794 return -EINVAL;
1795
3d9d1d66
JB		 1796 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1797 enum nl80211_channel_type chantype;
1798
1799 chantype = nla_get_u32(
1800 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1801
1802 switch (chantype) {
1803 case NL80211_CHAN_NO_HT:
1804 case NL80211_CHAN_HT20:
1805 case NL80211_CHAN_HT40PLUS:
1806 case NL80211_CHAN_HT40MINUS:
1807 cfg80211_chandef_create(chandef, chandef->chan,
1808 chantype);
1809 break;
1810 default:
1811 return -EINVAL;
1812 }
1813 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1814 chandef->width =
1815 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1816 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1817 chandef->center_freq1 =
1818 nla_get_u32(
1819 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1820 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1821 chandef->center_freq2 =
1822 nla_get_u32(
1823 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1824 }
1825
9f5e8f6e 1826 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1827 return -EINVAL;
1828
9f5e8f6e
JB		 1829 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1830 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1831 return -EINVAL;
1832
2f301ab2
SW		 1833 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1834 chandef->width == NL80211_CHAN_WIDTH_10) &&
1835 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1836 return -EINVAL;
1837
683b6d3b
JB		 1838 return 0;
1839}
1840
f444de05
JB		 1841static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1842 struct wireless_dev *wdev,
1843 struct genl_info *info)
1844{
683b6d3b 1845 struct cfg80211_chan_def chandef;
f444de05 1846 int result;
e8c9bd5b
JB		 1847 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1848
1849 if (wdev)
1850 iftype = wdev->iftype;
f444de05 1851
f444de05
JB		 1852 if (!nl80211_can_set_dev_channel(wdev))
1853 return -EOPNOTSUPP;
1854
683b6d3b
JB		 1855 result = nl80211_parse_chandef(rdev, info, &chandef);
1856 if (result)
1857 return result;
f444de05 1858
e8c9bd5b 1859 switch (iftype) {
aa430da4
JB		 1860 case NL80211_IFTYPE_AP:
1861 case NL80211_IFTYPE_P2P_GO:
1862 if (wdev->beacon_interval) {
1863 result = -EBUSY;
1864 break;
1865 }
683b6d3b 1866 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1867 result = -EINVAL;
1868 break;
1869 }
683b6d3b 1870 wdev->preset_chandef = chandef;
aa430da4
JB		 1871 result = 0;
1872 break;
cc1d2806 1873 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1874 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1875 break;
e8c9bd5b 1876 case NL80211_IFTYPE_MONITOR:
683b6d3b 1877 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1878 break;
aa430da4 1879 default:
e8c9bd5b 1880 result = -EINVAL;
f444de05 1881 }
f444de05
JB		 1882
1883 return result;
1884}
1885
1886static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1887{
4c476991
JB		 1888 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1889 struct net_device *netdev = info->user_ptr[1];
f444de05 1890
4c476991 1891 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1892}
1893
e8347eba
BJ		 1894static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1895{
43b19952
JB		 1896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1897 struct net_device *dev = info->user_ptr[1];
1898 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1899 const u8 *bssid;
e8347eba
BJ		 1900
1901 if (!info->attrs[NL80211_ATTR_MAC])
1902 return -EINVAL;
1903
43b19952
JB		 1904 if (netif_running(dev))
1905 return -EBUSY;
e8347eba 1906
43b19952
JB		 1907 if (!rdev->ops->set_wds_peer)
1908 return -EOPNOTSUPP;
e8347eba 1909
43b19952
JB		 1910 if (wdev->iftype != NL80211_IFTYPE_WDS)
1911 return -EOPNOTSUPP;
e8347eba
BJ		 1912
1913 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1914 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1915}
1916
1917
55682965
JB		 1918static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1919{
1920 struct cfg80211_registered_device *rdev;
f444de05
JB		 1921 struct net_device *netdev = NULL;
1922 struct wireless_dev *wdev;
a1e567c8 1923 int result = 0, rem_txq_params = 0;
31888487 1924 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1925 u32 changed;
1926 u8 retry_short = 0, retry_long = 0;
1927 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1928 u8 coverage_class = 0;
55682965 1929
5fe231e8
JB		 1930 ASSERT_RTNL();
1931
f444de05
JB		 1932 /*
1933 * Try to find the wiphy and netdev. Normally this
1934 * function shouldn't need the netdev, but this is
1935 * done for backward compatibility -- previously
1936 * setting the channel was done per wiphy, but now
1937 * it is per netdev. Previous userland like hostapd
1938 * also passed a netdev to set_wiphy, so that it is
1939 * possible to let that go to the right netdev!
1940 */
4bbf4d56 1941
f444de05
JB		 1942 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1943 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1944
1945 netdev = dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 1946 if (netdev && netdev->ieee80211_ptr)
f444de05 1947 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 1948 else
f444de05 1949 netdev = NULL;
4bbf4d56
JB		 1950 }
1951
f444de05 1952 if (!netdev) {
878d9ec7
JB		 1953 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1954 info->attrs);
5fe231e8 1955 if (IS_ERR(rdev))
4c476991 1956 return PTR_ERR(rdev);
f444de05
JB		 1957 wdev = NULL;
1958 netdev = NULL;
1959 result = 0;
71fe96bf 1960 } else
f444de05 1961 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1962
1963 /*
1964 * end workaround code, by now the rdev is available
1965 * and locked, and wdev may or may not be NULL.
1966 */
4bbf4d56
JB		 1967
1968 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1969 result = cfg80211_dev_rename(
1970 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 1971
4bbf4d56
JB		 1972 if (result)
1973 goto bad_res;
31888487
JM		 1974
1975 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1976 struct ieee80211_txq_params txq_params;
1977 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1978
1979 if (!rdev->ops->set_txq_params) {
1980 result = -EOPNOTSUPP;
1981 goto bad_res;
1982 }
1983
f70f01c2
EP		 1984 if (!netdev) {
1985 result = -EINVAL;
1986 goto bad_res;
1987 }
1988
133a3ff2
JB		 1989 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1990 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1991 result = -EINVAL;
1992 goto bad_res;
1993 }
1994
2b5f8b0b
JB		 1995 if (!netif_running(netdev)) {
1996 result = -ENETDOWN;
1997 goto bad_res;
1998 }
1999
31888487
JM		 2000 nla_for_each_nested(nl_txq_params,
2001 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2002 rem_txq_params) {
2003 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2004 nla_data(nl_txq_params),
2005 nla_len(nl_txq_params),
2006 txq_params_policy);
2007 result = parse_txq_params(tb, &txq_params);
2008 if (result)
2009 goto bad_res;
2010
e35e4d28
HG		 2011 result = rdev_set_txq_params(rdev, netdev,
2012 &txq_params);
31888487
JM		 2013 if (result)
2014 goto bad_res;
2015 }
2016 }
55682965 2017
72bdcf34 2018 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 2019 result = __nl80211_set_channel(rdev,
2020 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
2021 info);
72bdcf34
JM		 2022 if (result)
2023 goto bad_res;
2024 }
2025
98d2ff8b 2026 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2027 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2028 enum nl80211_tx_power_setting type;
2029 int idx, mbm = 0;
2030
c8442118
JB		 2031 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2032 txp_wdev = NULL;
2033
98d2ff8b 2034 if (!rdev->ops->set_tx_power) {
60ea385f 2035 result = -EOPNOTSUPP;
98d2ff8b
JO		 2036 goto bad_res;
2037 }
2038
2039 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2040 type = nla_get_u32(info->attrs[idx]);
2041
2042 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2043 (type != NL80211_TX_POWER_AUTOMATIC)) {
2044 result = -EINVAL;
2045 goto bad_res;
2046 }
2047
2048 if (type != NL80211_TX_POWER_AUTOMATIC) {
2049 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2050 mbm = nla_get_u32(info->attrs[idx]);
2051 }
2052
c8442118 2053 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 2054 if (result)
2055 goto bad_res;
2056 }
2057
afe0cbf8
BR		 2058 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2059 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2060 u32 tx_ant, rx_ant;
7f531e03
BR		 2061 if ((!rdev->wiphy.available_antennas_tx &&
2062 !rdev->wiphy.available_antennas_rx) ||
2063 !rdev->ops->set_antenna) {
afe0cbf8
BR		 2064 result = -EOPNOTSUPP;
2065 goto bad_res;
2066 }
2067
2068 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2069 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2070
a7ffac95 2071 /* reject antenna configurations which don't match the
7f531e03
BR		 2072 * available antenna masks, except for the "all" mask */
2073 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2074 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 2075 result = -EINVAL;
2076 goto bad_res;
2077 }
2078
7f531e03
BR		 2079 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2080 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2081
e35e4d28 2082 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 2083 if (result)
2084 goto bad_res;
2085 }
2086
b9a5f8ca
JM		 2087 changed = 0;
2088
2089 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2090 retry_short = nla_get_u8(
2091 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2092 if (retry_short == 0) {
2093 result = -EINVAL;
2094 goto bad_res;
2095 }
2096 changed |= WIPHY_PARAM_RETRY_SHORT;
2097 }
2098
2099 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2100 retry_long = nla_get_u8(
2101 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2102 if (retry_long == 0) {
2103 result = -EINVAL;
2104 goto bad_res;
2105 }
2106 changed |= WIPHY_PARAM_RETRY_LONG;
2107 }
2108
2109 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2110 frag_threshold = nla_get_u32(
2111 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2112 if (frag_threshold < 256) {
2113 result = -EINVAL;
2114 goto bad_res;
2115 }
2116 if (frag_threshold != (u32) -1) {
2117 /*
2118 * Fragments (apart from the last one) are required to
2119 * have even length. Make the fragmentation code
2120 * simpler by stripping LSB should someone try to use
2121 * odd threshold value.
2122 */
2123 frag_threshold &= ~0x1;
2124 }
2125 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2126 }
2127
2128 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2129 rts_threshold = nla_get_u32(
2130 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2131 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2132 }
2133
81077e82
LT		 2134 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2135 coverage_class = nla_get_u8(
2136 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2137 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2138 }
2139
b9a5f8ca
JM		 2140 if (changed) {
2141 u8 old_retry_short, old_retry_long;
2142 u32 old_frag_threshold, old_rts_threshold;
81077e82 2143 u8 old_coverage_class;
b9a5f8ca
JM		 2144
2145 if (!rdev->ops->set_wiphy_params) {
2146 result = -EOPNOTSUPP;
2147 goto bad_res;
2148 }
2149
2150 old_retry_short = rdev->wiphy.retry_short;
2151 old_retry_long = rdev->wiphy.retry_long;
2152 old_frag_threshold = rdev->wiphy.frag_threshold;
2153 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2154 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2155
2156 if (changed & WIPHY_PARAM_RETRY_SHORT)
2157 rdev->wiphy.retry_short = retry_short;
2158 if (changed & WIPHY_PARAM_RETRY_LONG)
2159 rdev->wiphy.retry_long = retry_long;
2160 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2161 rdev->wiphy.frag_threshold = frag_threshold;
2162 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2163 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2164 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2165 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2166
e35e4d28 2167 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2168 if (result) {
2169 rdev->wiphy.retry_short = old_retry_short;
2170 rdev->wiphy.retry_long = old_retry_long;
2171 rdev->wiphy.frag_threshold = old_frag_threshold;
2172 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2173 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2174 }
2175 }
72bdcf34 2176
306d6112 2177 bad_res:
f444de05
JB		 2178 if (netdev)
2179 dev_put(netdev);
55682965
JB		 2180 return result;
2181}
2182
71bbc994
JB		 2183static inline u64 wdev_id(struct wireless_dev *wdev)
2184{
2185 return (u64)wdev->identifier |
2186 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2187}
55682965 2188
683b6d3b
JB		 2189static int nl80211_send_chandef(struct sk_buff *msg,
2190 struct cfg80211_chan_def *chandef)
2191{
9f5e8f6e 2192 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2193
683b6d3b
JB		 2194 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2195 chandef->chan->center_freq))
2196 return -ENOBUFS;
3d9d1d66
JB		 2197 switch (chandef->width) {
2198 case NL80211_CHAN_WIDTH_20_NOHT:
2199 case NL80211_CHAN_WIDTH_20:
2200 case NL80211_CHAN_WIDTH_40:
2201 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2202 cfg80211_get_chandef_type(chandef)))
2203 return -ENOBUFS;
2204 break;
2205 default:
2206 break;
2207 }
2208 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2209 return -ENOBUFS;
2210 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2211 return -ENOBUFS;
2212 if (chandef->center_freq2 &&
2213 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2214 return -ENOBUFS;
2215 return 0;
2216}
2217
15e47304 2218static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2219 struct cfg80211_registered_device *rdev,
72fb2abc 2220 struct wireless_dev *wdev)
55682965 2221{
72fb2abc 2222 struct net_device *dev = wdev->netdev;
55682965
JB		 2223 void *hdr;
2224
15e47304 2225 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2226 if (!hdr)
2227 return -1;
2228
72fb2abc
JB		 2229 if (dev &&
2230 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2231 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2232 goto nla_put_failure;
2233
2234 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2235 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2236 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2237 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2238 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2239 rdev->devlist_generation ^
2240 (cfg80211_rdev_list_generation << 2)))
2241 goto nla_put_failure;
f5ea9120 2242
5b7ccaf3 2243 if (rdev->ops->get_channel) {
683b6d3b
JB		 2244 int ret;
2245 struct cfg80211_chan_def chandef;
2246
2247 ret = rdev_get_channel(rdev, wdev, &chandef);
2248 if (ret == 0) {
2249 if (nl80211_send_chandef(msg, &chandef))
2250 goto nla_put_failure;
2251 }
d91df0e3
PF		 2252 }
2253
b84e7a05
AQ		 2254 if (wdev->ssid_len) {
2255 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2256 goto nla_put_failure;
2257 }
2258
55682965
JB		 2259 return genlmsg_end(msg, hdr);
2260
2261 nla_put_failure:
bc3ed28c
TG		 2262 genlmsg_cancel(msg, hdr);
2263 return -EMSGSIZE;
55682965
JB		 2264}
2265
2266static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2267{
2268 int wp_idx = 0;
2269 int if_idx = 0;
2270 int wp_start = cb->args[0];
2271 int if_start = cb->args[1];
f5ea9120 2272 struct cfg80211_registered_device *rdev;
55682965
JB		 2273 struct wireless_dev *wdev;
2274
5fe231e8 2275 rtnl_lock();
f5ea9120
JB		 2276 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2277 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2278 continue;
bba95fef
JB		 2279 if (wp_idx < wp_start) {
2280 wp_idx++;
55682965 2281 continue;
bba95fef 2282 }
55682965
JB		 2283 if_idx = 0;
2284
89a54e48 2285 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2286 if (if_idx < if_start) {
2287 if_idx++;
55682965 2288 continue;
bba95fef 2289 }
15e47304 2290 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2291 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2292 rdev, wdev) < 0) {
bba95fef
JB		 2293 goto out;
2294 }
2295 if_idx++;
55682965 2296 }
bba95fef
JB		 2297
2298 wp_idx++;
55682965 2299 }
bba95fef 2300 out:
5fe231e8 2301 rtnl_unlock();
55682965
JB		 2302
2303 cb->args[0] = wp_idx;
2304 cb->args[1] = if_idx;
2305
2306 return skb->len;
2307}
2308
2309static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2310{
2311 struct sk_buff *msg;
4c476991 2312 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2313 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2314
fd2120ca 2315 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2316 if (!msg)
4c476991 2317 return -ENOMEM;
55682965 2318
15e47304 2319 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2320 dev, wdev) < 0) {
4c476991
JB		 2321 nlmsg_free(msg);
2322 return -ENOBUFS;
2323 }
55682965 2324
134e6375 2325 return genlmsg_reply(msg, info);
55682965
JB		 2326}
2327
66f7ac50
MW		 2328static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2329 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2330 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2331 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2332 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2333 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2334 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2335};
2336
2337static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2338{
2339 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2340 int flag;
2341
2342 *mntrflags = 0;
2343
2344 if (!nla)
2345 return -EINVAL;
2346
2347 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2348 nla, mntr_flags_policy))
2349 return -EINVAL;
2350
2351 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2352 if (flags[flag])
2353 *mntrflags |= (1<<flag);
2354
2355 return 0;
2356}
2357
9bc383de 2358static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2359 struct net_device *netdev, u8 use_4addr,
2360 enum nl80211_iftype iftype)
9bc383de 2361{
ad4bb6f8 2362 if (!use_4addr) {
f350a0a8 2363 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2364 return -EBUSY;
9bc383de 2365 return 0;
ad4bb6f8 2366 }
9bc383de
JB		 2367
2368 switch (iftype) {
2369 case NL80211_IFTYPE_AP_VLAN:
2370 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2371 return 0;
2372 break;
2373 case NL80211_IFTYPE_STATION:
2374 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2375 return 0;
2376 break;
2377 default:
2378 break;
2379 }
2380
2381 return -EOPNOTSUPP;
2382}
2383
55682965
JB		 2384static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2385{
4c476991 2386 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2387 struct vif_params params;
e36d56b6 2388 int err;
04a773ad 2389 enum nl80211_iftype otype, ntype;
4c476991 2390 struct net_device *dev = info->user_ptr[1];
92ffe055 2391 u32 _flags, *flags = NULL;
ac7f9cfa 2392 bool change = false;
55682965 2393
2ec600d6
LCC		 2394 memset(&params, 0, sizeof(params));
2395
04a773ad 2396 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2397
723b038d 2398 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2399 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2400 if (otype != ntype)
ac7f9cfa 2401 change = true;
4c476991
JB		 2402 if (ntype > NL80211_IFTYPE_MAX)
2403 return -EINVAL;
723b038d
JB		 2404 }
2405
92ffe055 2406 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2407 struct wireless_dev *wdev = dev->ieee80211_ptr;
2408
4c476991
JB		 2409 if (ntype != NL80211_IFTYPE_MESH_POINT)
2410 return -EINVAL;
29cbe68c
JB		 2411 if (netif_running(dev))
2412 return -EBUSY;
2413
2414 wdev_lock(wdev);
2415 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2416 IEEE80211_MAX_MESH_ID_LEN);
2417 wdev->mesh_id_up_len =
2418 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2419 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2420 wdev->mesh_id_up_len);
2421 wdev_unlock(wdev);
2ec600d6
LCC		 2422 }
2423
8b787643
FF		 2424 if (info->attrs[NL80211_ATTR_4ADDR]) {
2425 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2426 change = true;
ad4bb6f8 2427 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2428 if (err)
4c476991 2429 return err;
8b787643
FF		 2430 } else {
2431 params.use_4addr = -1;
2432 }
2433
92ffe055 2434 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2435 if (ntype != NL80211_IFTYPE_MONITOR)
2436 return -EINVAL;
92ffe055
JB		 2437 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2438 &_flags);
ac7f9cfa 2439 if (err)
4c476991 2440 return err;
ac7f9cfa
JB		 2441
2442 flags = &_flags;
2443 change = true;
92ffe055 2444 }
3b85875a 2445
18003297 2446 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2447 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2448 return -EOPNOTSUPP;
2449
ac7f9cfa 2450 if (change)
3d54d255 2451 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2452 else
2453 err = 0;
60719ffd 2454
9bc383de
JB		 2455 if (!err && params.use_4addr != -1)
2456 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2457
55682965
JB		 2458 return err;
2459}
2460
2461static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2462{
4c476991 2463 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2464 struct vif_params params;
84efbb84 2465 struct wireless_dev *wdev;
1c90f9d4 2466 struct sk_buff *msg;
55682965
JB		 2467 int err;
2468 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2469 u32 flags;
55682965 2470
2ec600d6
LCC		 2471 memset(&params, 0, sizeof(params));
2472
55682965
JB		 2473 if (!info->attrs[NL80211_ATTR_IFNAME])
2474 return -EINVAL;
2475
2476 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2477 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2478 if (type > NL80211_IFTYPE_MAX)
2479 return -EINVAL;
2480 }
2481
79c97e97 2482 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2483 !(rdev->wiphy.interface_modes & (1 << type)))
2484 return -EOPNOTSUPP;
55682965 2485
1c18f145
AS		 2486 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2487 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2488 ETH_ALEN);
2489 if (!is_valid_ether_addr(params.macaddr))
2490 return -EADDRNOTAVAIL;
2491 }
2492
9bc383de 2493 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2494 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2495 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2496 if (err)
4c476991 2497 return err;
9bc383de 2498 }
8b787643 2499
1c90f9d4
JB		 2500 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2501 if (!msg)
2502 return -ENOMEM;
2503
66f7ac50
MW		 2504 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2505 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2506 &flags);
e057d3c3 2507
18003297 2508 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2509 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2510 return -EOPNOTSUPP;
2511
e35e4d28
HG		 2512 wdev = rdev_add_virtual_intf(rdev,
2513 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2514 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2515 if (IS_ERR(wdev)) {
2516 nlmsg_free(msg);
84efbb84 2517 return PTR_ERR(wdev);
1c90f9d4 2518 }
2ec600d6 2519
98104fde
JB		 2520 switch (type) {
2521 case NL80211_IFTYPE_MESH_POINT:
2522 if (!info->attrs[NL80211_ATTR_MESH_ID])
2523 break;
29cbe68c
JB		 2524 wdev_lock(wdev);
2525 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2526 IEEE80211_MAX_MESH_ID_LEN);
2527 wdev->mesh_id_up_len =
2528 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2529 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2530 wdev->mesh_id_up_len);
2531 wdev_unlock(wdev);
98104fde
JB		 2532 break;
2533 case NL80211_IFTYPE_P2P_DEVICE:
2534 /*
2535 * P2P Device doesn't have a netdev, so doesn't go
2536 * through the netdev notifier and must be added here
2537 */
2538 mutex_init(&wdev->mtx);
2539 INIT_LIST_HEAD(&wdev->event_list);
2540 spin_lock_init(&wdev->event_lock);
2541 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2542 spin_lock_init(&wdev->mgmt_registrations_lock);
2543
98104fde
JB		 2544 wdev->identifier = ++rdev->wdev_id;
2545 list_add_rcu(&wdev->list, &rdev->wdev_list);
2546 rdev->devlist_generation++;
98104fde
JB		 2547 break;
2548 default:
2549 break;
29cbe68c
JB		 2550 }
2551
15e47304 2552 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2553 rdev, wdev) < 0) {
2554 nlmsg_free(msg);
2555 return -ENOBUFS;
2556 }
2557
2558 return genlmsg_reply(msg, info);
55682965
JB		 2559}
2560
2561static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2562{
4c476991 2563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2564 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2565
4c476991
JB		 2566 if (!rdev->ops->del_virtual_intf)
2567 return -EOPNOTSUPP;
55682965 2568
84efbb84
JB		 2569 /*
2570 * If we remove a wireless device without a netdev then clear
2571 * user_ptr[1] so that nl80211_post_doit won't dereference it
2572 * to check if it needs to do dev_put(). Otherwise it crashes
2573 * since the wdev has been freed, unlike with a netdev where
2574 * we need the dev_put() for the netdev to really be freed.
2575 */
2576 if (!wdev->netdev)
2577 info->user_ptr[1] = NULL;
2578
e35e4d28 2579 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2580}
2581
1d9d9213
SW		 2582static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2583{
2584 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2585 struct net_device *dev = info->user_ptr[1];
2586 u16 noack_map;
2587
2588 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2589 return -EINVAL;
2590
2591 if (!rdev->ops->set_noack_map)
2592 return -EOPNOTSUPP;
2593
2594 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2595
e35e4d28 2596 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2597}
2598
41ade00f
JB		 2599struct get_key_cookie {
2600 struct sk_buff *msg;
2601 int error;
b9454e83 2602 int idx;
41ade00f
JB		 2603};
2604
2605static void get_key_callback(void *c, struct key_params *params)
2606{
b9454e83 2607 struct nlattr *key;
41ade00f
JB		 2608 struct get_key_cookie *cookie = c;
2609
9360ffd1
DM		 2610 if ((params->key &&
2611 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2612 params->key_len, params->key)) ||
2613 (params->seq &&
2614 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2615 params->seq_len, params->seq)) ||
2616 (params->cipher &&
2617 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2618 params->cipher)))
2619 goto nla_put_failure;
41ade00f 2620
b9454e83
JB		 2621 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2622 if (!key)
2623 goto nla_put_failure;
2624
9360ffd1
DM		 2625 if ((params->key &&
2626 nla_put(cookie->msg, NL80211_KEY_DATA,
2627 params->key_len, params->key)) ||
2628 (params->seq &&
2629 nla_put(cookie->msg, NL80211_KEY_SEQ,
2630 params->seq_len, params->seq)) ||
2631 (params->cipher &&
2632 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2633 params->cipher)))
2634 goto nla_put_failure;
b9454e83 2635
9360ffd1
DM		 2636 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2637 goto nla_put_failure;
b9454e83
JB		 2638
2639 nla_nest_end(cookie->msg, key);
2640
41ade00f
JB		 2641 return;
2642 nla_put_failure:
2643 cookie->error = 1;
2644}
2645
2646static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2647{
4c476991 2648 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2649 int err;
4c476991 2650 struct net_device *dev = info->user_ptr[1];
41ade00f 2651 u8 key_idx = 0;
e31b8213
JB		 2652 const u8 *mac_addr = NULL;
2653 bool pairwise;
41ade00f
JB		 2654 struct get_key_cookie cookie = {
2655 .error = 0,
2656 };
2657 void *hdr;
2658 struct sk_buff *msg;
2659
2660 if (info->attrs[NL80211_ATTR_KEY_IDX])
2661 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2662
3cfcf6ac 2663 if (key_idx > 5)
41ade00f
JB		 2664 return -EINVAL;
2665
2666 if (info->attrs[NL80211_ATTR_MAC])
2667 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2668
e31b8213
JB		 2669 pairwise = !!mac_addr;
2670 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2671 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2672 if (kt >= NUM_NL80211_KEYTYPES)
2673 return -EINVAL;
2674 if (kt != NL80211_KEYTYPE_GROUP &&
2675 kt != NL80211_KEYTYPE_PAIRWISE)
2676 return -EINVAL;
2677 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2678 }
2679
4c476991
JB		 2680 if (!rdev->ops->get_key)
2681 return -EOPNOTSUPP;
41ade00f 2682
fd2120ca 2683 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2684 if (!msg)
2685 return -ENOMEM;
41ade00f 2686
15e47304 2687 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2688 NL80211_CMD_NEW_KEY);
cb35fba3
DC		 2689 if (!hdr)
2690 return -ENOBUFS;
41ade00f
JB		 2691
2692 cookie.msg = msg;
b9454e83 2693 cookie.idx = key_idx;
41ade00f 2694
9360ffd1
DM		 2695 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2696 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2697 goto nla_put_failure;
2698 if (mac_addr &&
2699 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2700 goto nla_put_failure;
41ade00f 2701
e31b8213
JB		 2702 if (pairwise && mac_addr &&
2703 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2704 return -ENOENT;
2705
e35e4d28
HG		 2706 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2707 get_key_callback);
41ade00f
JB		 2708
2709 if (err)
6c95e2a2 2710 goto free_msg;
41ade00f
JB		 2711
2712 if (cookie.error)
2713 goto nla_put_failure;
2714
2715 genlmsg_end(msg, hdr);
4c476991 2716 return genlmsg_reply(msg, info);
41ade00f
JB		 2717
2718 nla_put_failure:
2719 err = -ENOBUFS;
6c95e2a2 2720 free_msg:
41ade00f 2721 nlmsg_free(msg);
41ade00f
JB		 2722 return err;
2723}
2724
2725static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2726{
4c476991 2727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2728 struct key_parse key;
41ade00f 2729 int err;
4c476991 2730 struct net_device *dev = info->user_ptr[1];
41ade00f 2731
b9454e83
JB		 2732 err = nl80211_parse_key(info, &key);
2733 if (err)
2734 return err;
41ade00f 2735
b9454e83 2736 if (key.idx < 0)
41ade00f
JB		 2737 return -EINVAL;
2738
b9454e83
JB		 2739 /* only support setting default key */
2740 if (!key.def && !key.defmgmt)
41ade00f
JB		 2741 return -EINVAL;
2742
dbd2fd65 2743 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2744
dbd2fd65
JB		 2745 if (key.def) {
2746 if (!rdev->ops->set_default_key) {
2747 err = -EOPNOTSUPP;
2748 goto out;
2749 }
41ade00f 2750
dbd2fd65
JB		 2751 err = nl80211_key_allowed(dev->ieee80211_ptr);
2752 if (err)
2753 goto out;
2754
e35e4d28 2755 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2756 key.def_uni, key.def_multi);
2757
2758 if (err)
2759 goto out;
fffd0934 2760
3d23e349 2761#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2762 dev->ieee80211_ptr->wext.default_key = key.idx;
2763#endif
2764 } else {
2765 if (key.def_uni || !key.def_multi) {
2766 err = -EINVAL;
2767 goto out;
2768 }
2769
2770 if (!rdev->ops->set_default_mgmt_key) {
2771 err = -EOPNOTSUPP;
2772 goto out;
2773 }
2774
2775 err = nl80211_key_allowed(dev->ieee80211_ptr);
2776 if (err)
2777 goto out;
2778
e35e4d28 2779 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2780 if (err)
2781 goto out;
2782
2783#ifdef CONFIG_CFG80211_WEXT
2784 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2785#endif
dbd2fd65
JB		 2786 }
2787
2788 out:
fffd0934 2789 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2790
41ade00f
JB		 2791 return err;
2792}
2793
2794static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2795{
4c476991 2796 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2797 int err;
4c476991 2798 struct net_device *dev = info->user_ptr[1];
b9454e83 2799 struct key_parse key;
e31b8213 2800 const u8 *mac_addr = NULL;
41ade00f 2801
b9454e83
JB		 2802 err = nl80211_parse_key(info, &key);
2803 if (err)
2804 return err;
41ade00f 2805
b9454e83 2806 if (!key.p.key)
41ade00f
JB		 2807 return -EINVAL;
2808
41ade00f
JB		 2809 if (info->attrs[NL80211_ATTR_MAC])
2810 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2811
e31b8213
JB		 2812 if (key.type == -1) {
2813 if (mac_addr)
2814 key.type = NL80211_KEYTYPE_PAIRWISE;
2815 else
2816 key.type = NL80211_KEYTYPE_GROUP;
2817 }
2818
2819 /* for now */
2820 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2821 key.type != NL80211_KEYTYPE_GROUP)
2822 return -EINVAL;
2823
4c476991
JB		 2824 if (!rdev->ops->add_key)
2825 return -EOPNOTSUPP;
25e47c18 2826
e31b8213
JB		 2827 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2828 key.type == NL80211_KEYTYPE_PAIRWISE,
2829 mac_addr))
4c476991 2830 return -EINVAL;
41ade00f 2831
fffd0934
JB		 2832 wdev_lock(dev->ieee80211_ptr);
2833 err = nl80211_key_allowed(dev->ieee80211_ptr);
2834 if (!err)
e35e4d28
HG		 2835 err = rdev_add_key(rdev, dev, key.idx,
2836 key.type == NL80211_KEYTYPE_PAIRWISE,
2837 mac_addr, &key.p);
fffd0934 2838 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2839
41ade00f
JB		 2840 return err;
2841}
2842
2843static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2844{
4c476991 2845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2846 int err;
4c476991 2847 struct net_device *dev = info->user_ptr[1];
41ade00f 2848 u8 *mac_addr = NULL;
b9454e83 2849 struct key_parse key;
41ade00f 2850
b9454e83
JB		 2851 err = nl80211_parse_key(info, &key);
2852 if (err)
2853 return err;
41ade00f
JB		 2854
2855 if (info->attrs[NL80211_ATTR_MAC])
2856 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2857
e31b8213
JB		 2858 if (key.type == -1) {
2859 if (mac_addr)
2860 key.type = NL80211_KEYTYPE_PAIRWISE;
2861 else
2862 key.type = NL80211_KEYTYPE_GROUP;
2863 }
2864
2865 /* for now */
2866 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2867 key.type != NL80211_KEYTYPE_GROUP)
2868 return -EINVAL;
2869
4c476991
JB		 2870 if (!rdev->ops->del_key)
2871 return -EOPNOTSUPP;
41ade00f 2872
fffd0934
JB		 2873 wdev_lock(dev->ieee80211_ptr);
2874 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2875
2876 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2877 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2878 err = -ENOENT;
2879
fffd0934 2880 if (!err)
e35e4d28
HG		 2881 err = rdev_del_key(rdev, dev, key.idx,
2882 key.type == NL80211_KEYTYPE_PAIRWISE,
2883 mac_addr);
41ade00f 2884
3d23e349 2885#ifdef CONFIG_CFG80211_WEXT
08645126 2886 if (!err) {
b9454e83 2887 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2888 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2889 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2890 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2891 }
2892#endif
fffd0934 2893 wdev_unlock(dev->ieee80211_ptr);
08645126 2894
41ade00f
JB		 2895 return err;
2896}
2897
77765eaf
VT		 2898/* This function returns an error or the number of nested attributes */
2899static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2900{
2901 struct nlattr *attr;
2902 int n_entries = 0, tmp;
2903
2904 nla_for_each_nested(attr, nl_attr, tmp) {
2905 if (nla_len(attr) != ETH_ALEN)
2906 return -EINVAL;
2907
2908 n_entries++;
2909 }
2910
2911 return n_entries;
2912}
2913
2914/*
2915 * This function parses ACL information and allocates memory for ACL data.
2916 * On successful return, the calling function is responsible to free the
2917 * ACL buffer returned by this function.
2918 */
2919static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2920 struct genl_info *info)
2921{
2922 enum nl80211_acl_policy acl_policy;
2923 struct nlattr *attr;
2924 struct cfg80211_acl_data *acl;
2925 int i = 0, n_entries, tmp;
2926
2927 if (!wiphy->max_acl_mac_addrs)
2928 return ERR_PTR(-EOPNOTSUPP);
2929
2930 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2931 return ERR_PTR(-EINVAL);
2932
2933 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2934 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2935 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2936 return ERR_PTR(-EINVAL);
2937
2938 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2939 return ERR_PTR(-EINVAL);
2940
2941 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2942 if (n_entries < 0)
2943 return ERR_PTR(n_entries);
2944
2945 if (n_entries > wiphy->max_acl_mac_addrs)
2946 return ERR_PTR(-ENOTSUPP);
2947
2948 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2949 GFP_KERNEL);
2950 if (!acl)
2951 return ERR_PTR(-ENOMEM);
2952
2953 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2954 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2955 i++;
2956 }
2957
2958 acl->n_acl_entries = n_entries;
2959 acl->acl_policy = acl_policy;
2960
2961 return acl;
2962}
2963
2964static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2965{
2966 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2967 struct net_device *dev = info->user_ptr[1];
2968 struct cfg80211_acl_data *acl;
2969 int err;
2970
2971 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2972 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2973 return -EOPNOTSUPP;
2974
2975 if (!dev->ieee80211_ptr->beacon_interval)
2976 return -EINVAL;
2977
2978 acl = parse_acl_data(&rdev->wiphy, info);
2979 if (IS_ERR(acl))
2980 return PTR_ERR(acl);
2981
2982 err = rdev_set_mac_acl(rdev, dev, acl);
2983
2984 kfree(acl);
2985
2986 return err;
2987}
2988
a1193be8 2989static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 2990 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2991{
8860020e 2992 bool haveinfo = false;
ed1b6cc7 2993
a1193be8
SW		 2994 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
2995 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
2996 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2997 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2998 return -EINVAL;
2999
8860020e 3000 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3001
a1193be8
SW		 3002 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3003 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3004 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3005 if (!bcn->head_len)
3006 return -EINVAL;
3007 haveinfo = true;
ed1b6cc7
JB		 3008 }
3009
a1193be8
SW		 3010 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3011 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3012 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3013 haveinfo = true;
ed1b6cc7
JB		 3014 }
3015
4c476991
JB		 3016 if (!haveinfo)
3017 return -EINVAL;
3b85875a 3018
a1193be8
SW		 3019 if (attrs[NL80211_ATTR_IE]) {
3020 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3021 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3022 }
3023
a1193be8 3024 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3025 bcn->proberesp_ies =
a1193be8 3026 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3027 bcn->proberesp_ies_len =
a1193be8 3028 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3029 }
3030
a1193be8 3031 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3032 bcn->assocresp_ies =
a1193be8 3033 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3034 bcn->assocresp_ies_len =
a1193be8 3035 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3036 }
3037
a1193be8
SW		 3038 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3039 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3040 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3041 }
3042
8860020e
JB		 3043 return 0;
3044}
3045
46c1dd0c
FF		 3046static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3047 struct cfg80211_ap_settings *params)
3048{
3049 struct wireless_dev *wdev;
3050 bool ret = false;
3051
89a54e48 3052 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3053 if (wdev->iftype != NL80211_IFTYPE_AP &&
3054 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3055 continue;
3056
683b6d3b 3057 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3058 continue;
3059
683b6d3b 3060 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3061 ret = true;
3062 break;
3063 }
3064
46c1dd0c
FF		 3065 return ret;
3066}
3067
e39e5b5e
JM		 3068static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3069 enum nl80211_auth_type auth_type,
3070 enum nl80211_commands cmd)
3071{
3072 if (auth_type > NL80211_AUTHTYPE_MAX)
3073 return false;
3074
3075 switch (cmd) {
3076 case NL80211_CMD_AUTHENTICATE:
3077 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3078 auth_type == NL80211_AUTHTYPE_SAE)
3079 return false;
3080 return true;
3081 case NL80211_CMD_CONNECT:
3082 case NL80211_CMD_START_AP:
3083 /* SAE not supported yet */
3084 if (auth_type == NL80211_AUTHTYPE_SAE)
3085 return false;
3086 return true;
3087 default:
3088 return false;
3089 }
3090}
3091
8860020e
JB		 3092static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3093{
3094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3095 struct net_device *dev = info->user_ptr[1];
3096 struct wireless_dev *wdev = dev->ieee80211_ptr;
3097 struct cfg80211_ap_settings params;
3098 int err;
04f39047 3099 u8 radar_detect_width = 0;
8860020e
JB		 3100
3101 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3102 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3103 return -EOPNOTSUPP;
3104
3105 if (!rdev->ops->start_ap)
3106 return -EOPNOTSUPP;
3107
3108 if (wdev->beacon_interval)
3109 return -EALREADY;
3110
3111 memset(&params, 0, sizeof(params));
3112
3113 /* these are required for START_AP */
3114 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3115 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3116 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3117 return -EINVAL;
3118
a1193be8 3119 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3120 if (err)
3121 return err;
3122
3123 params.beacon_interval =
3124 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3125 params.dtim_period =
3126 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3127
3128 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3129 if (err)
3130 return err;
3131
3132 /*
3133 * In theory, some of these attributes should be required here
3134 * but since they were not used when the command was originally
3135 * added, keep them optional for old user space programs to let
3136 * them continue to work with drivers that do not need the
3137 * additional information -- drivers must check!
3138 */
3139 if (info->attrs[NL80211_ATTR_SSID]) {
3140 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3141 params.ssid_len =
3142 nla_len(info->attrs[NL80211_ATTR_SSID]);
3143 if (params.ssid_len == 0 ||
3144 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3145 return -EINVAL;
3146 }
3147
3148 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3149 params.hidden_ssid = nla_get_u32(
3150 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3151 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3152 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3153 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3154 return -EINVAL;
3155 }
3156
3157 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3158
3159 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3160 params.auth_type = nla_get_u32(
3161 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3162 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3163 NL80211_CMD_START_AP))
8860020e
JB		 3164 return -EINVAL;
3165 } else
3166 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3167
3168 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3169 NL80211_MAX_NR_CIPHER_SUITES);
3170 if (err)
3171 return err;
3172
1b658f11
VT		 3173 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3174 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3175 return -EOPNOTSUPP;
3176 params.inactivity_timeout = nla_get_u16(
3177 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3178 }
3179
53cabad7
JB		 3180 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3181 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3182 return -EINVAL;
3183 params.p2p_ctwindow =
3184 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3185 if (params.p2p_ctwindow > 127)
3186 return -EINVAL;
3187 if (params.p2p_ctwindow != 0 &&
3188 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3189 return -EINVAL;
3190 }
3191
3192 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3193 u8 tmp;
3194
3195 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3196 return -EINVAL;
3197 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3198 if (tmp > 1)
3199 return -EINVAL;
3200 params.p2p_opp_ps = tmp;
3201 if (params.p2p_opp_ps != 0 &&
3202 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3203 return -EINVAL;
3204 }
3205
aa430da4 3206 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3207 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3208 if (err)
3209 return err;
3210 } else if (wdev->preset_chandef.chan) {
3211 params.chandef = wdev->preset_chandef;
46c1dd0c 3212 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3213 return -EINVAL;
3214
683b6d3b 3215 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3216 return -EINVAL;
3217
04f39047
SW		 3218 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3219 if (err < 0)
3220 return err;
3221 if (err) {
3222 radar_detect_width = BIT(params.chandef.width);
3223 params.radar_required = true;
3224 }
3225
04f39047
SW		 3226 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3227 params.chandef.chan,
3228 CHAN_MODE_SHARED,
3229 radar_detect_width);
e4e32459
MK		 3230 if (err)
3231 return err;
3232
77765eaf
VT		 3233 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3234 params.acl = parse_acl_data(&rdev->wiphy, info);
3235 if (IS_ERR(params.acl))
3236 return PTR_ERR(params.acl);
3237 }
3238
e35e4d28 3239 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3240 if (!err) {
683b6d3b 3241 wdev->preset_chandef = params.chandef;
8860020e 3242 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3243 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3244 wdev->ssid_len = params.ssid_len;
3245 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3246 }
77765eaf
VT		 3247
3248 kfree(params.acl);
3249
56d1893d 3250 return err;
ed1b6cc7
JB		 3251}
3252
8860020e
JB		 3253static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3254{
3255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3256 struct net_device *dev = info->user_ptr[1];
3257 struct wireless_dev *wdev = dev->ieee80211_ptr;
3258 struct cfg80211_beacon_data params;
3259 int err;
3260
3261 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3262 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3263 return -EOPNOTSUPP;
3264
3265 if (!rdev->ops->change_beacon)
3266 return -EOPNOTSUPP;
3267
3268 if (!wdev->beacon_interval)
3269 return -EINVAL;
3270
a1193be8 3271 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3272 if (err)
3273 return err;
3274
e35e4d28 3275 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 3276}
3277
3278static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3279{
4c476991
JB		 3280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3281 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3282
60771780 3283 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3284}
3285
5727ef1b
JB		 3286static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3287 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3288 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3289 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3290 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3291 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3292 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3293};
3294
eccb8e8f 3295static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3296 enum nl80211_iftype iftype,
eccb8e8f 3297 struct station_parameters *params)
5727ef1b
JB		 3298{
3299 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3300 struct nlattr *nla;
5727ef1b
JB		 3301 int flag;
3302
eccb8e8f
JB		 3303 /*
3304 * Try parsing the new attribute first so userspace
3305 * can specify both for older kernels.
3306 */
3307 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3308 if (nla) {
3309 struct nl80211_sta_flag_update *sta_flags;
3310
3311 sta_flags = nla_data(nla);
3312 params->sta_flags_mask = sta_flags->mask;
3313 params->sta_flags_set = sta_flags->set;
77ee7c89 3314 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3315 if ((params->sta_flags_mask |
3316 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3317 return -EINVAL;
3318 return 0;
3319 }
3320
3321 /* if present, parse the old attribute */
5727ef1b 3322
eccb8e8f 3323 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3324 if (!nla)
3325 return 0;
3326
3327 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3328 nla, sta_flags_policy))
3329 return -EINVAL;
3330
bdd3ae3d
JB		 3331 /*
3332 * Only allow certain flags for interface types so that
3333 * other attributes are silently ignored. Remember that
3334 * this is backward compatibility code with old userspace
3335 * and shouldn't be hit in other cases anyway.
3336 */
3337 switch (iftype) {
3338 case NL80211_IFTYPE_AP:
3339 case NL80211_IFTYPE_AP_VLAN:
3340 case NL80211_IFTYPE_P2P_GO:
3341 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3342 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3343 BIT(NL80211_STA_FLAG_WME) |
3344 BIT(NL80211_STA_FLAG_MFP);
3345 break;
3346 case NL80211_IFTYPE_P2P_CLIENT:
3347 case NL80211_IFTYPE_STATION:
3348 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3349 BIT(NL80211_STA_FLAG_TDLS_PEER);
3350 break;
3351 case NL80211_IFTYPE_MESH_POINT:
3352 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3353 BIT(NL80211_STA_FLAG_MFP) |
3354 BIT(NL80211_STA_FLAG_AUTHORIZED);
3355 default:
3356 return -EINVAL;
3357 }
5727ef1b 3358
3383b5a6
JB		 3359 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3360 if (flags[flag]) {
eccb8e8f 3361 params->sta_flags_set |= (1<<flag);
5727ef1b 3362
3383b5a6
JB		 3363 /* no longer support new API additions in old API */
3364 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3365 return -EINVAL;
3366 }
3367 }
3368
5727ef1b
JB		 3369 return 0;
3370}
3371
c8dcfd8a
FF		 3372static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3373 int attr)
3374{
3375 struct nlattr *rate;
8eb41c8d
VK		 3376 u32 bitrate;
3377 u16 bitrate_compat;
c8dcfd8a
FF		 3378
3379 rate = nla_nest_start(msg, attr);
3380 if (!rate)
db9c64cf 3381 return false;
c8dcfd8a
FF		 3382
3383 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3384 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3385 /* report 16-bit bitrate only if we can */
3386 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3387 if (bitrate > 0 &&
3388 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3389 return false;
3390 if (bitrate_compat > 0 &&
3391 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3392 return false;
3393
3394 if (info->flags & RATE_INFO_FLAGS_MCS) {
3395 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3396 return false;
3397 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3398 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3399 return false;
3400 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3401 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3402 return false;
3403 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3404 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3405 return false;
3406 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3407 return false;
3408 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3409 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3410 return false;
3411 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3412 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3413 return false;
3414 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3415 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3416 return false;
3417 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3418 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3419 return false;
3420 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3421 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3422 return false;
3423 }
c8dcfd8a
FF		 3424
3425 nla_nest_end(msg, rate);
3426 return true;
c8dcfd8a
FF		 3427}
3428
119363c7
FF		 3429static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3430 int id)
3431{
3432 void *attr;
3433 int i = 0;
3434
3435 if (!mask)
3436 return true;
3437
3438 attr = nla_nest_start(msg, id);
3439 if (!attr)
3440 return false;
3441
3442 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3443 if (!(mask & BIT(i)))
3444 continue;
3445
3446 if (nla_put_u8(msg, i, signal[i]))
3447 return false;
3448 }
3449
3450 nla_nest_end(msg, attr);
3451
3452 return true;
3453}
3454
15e47304 3455static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3456 int flags,
3457 struct cfg80211_registered_device *rdev,
3458 struct net_device *dev,
98b62183 3459 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3460{
3461 void *hdr;
f4263c98 3462 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3463
15e47304 3464 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3465 if (!hdr)
3466 return -1;
3467
9360ffd1
DM		 3468 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3469 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3470 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3471 goto nla_put_failure;
f5ea9120 3472
2ec600d6
LCC		 3473 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3474 if (!sinfoattr)
fd5b74dc 3475 goto nla_put_failure;
9360ffd1
DM		 3476 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3477 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3478 sinfo->connected_time))
3479 goto nla_put_failure;
3480 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3481 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3482 sinfo->inactive_time))
3483 goto nla_put_failure;
42745e03
VK		 3484 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3485 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3486 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3487 (u32)sinfo->rx_bytes))
9360ffd1 3488 goto nla_put_failure;
42745e03 3489 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3490 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3491 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3492 (u32)sinfo->tx_bytes))
3493 goto nla_put_failure;
3494 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3495 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3496 sinfo->rx_bytes))
3497 goto nla_put_failure;
3498 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3499 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3500 sinfo->tx_bytes))
3501 goto nla_put_failure;
3502 if ((sinfo->filled & STATION_INFO_LLID) &&
3503 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3504 goto nla_put_failure;
3505 if ((sinfo->filled & STATION_INFO_PLID) &&
3506 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3507 goto nla_put_failure;
3508 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3509 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3510 sinfo->plink_state))
3511 goto nla_put_failure;
66266b3a
JL		 3512 switch (rdev->wiphy.signal_type) {
3513 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3514 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3515 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3516 sinfo->signal))
3517 goto nla_put_failure;
3518 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3519 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3520 sinfo->signal_avg))
3521 goto nla_put_failure;
66266b3a
JL		 3522 break;
3523 default:
3524 break;
3525 }
119363c7
FF		 3526 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3527 if (!nl80211_put_signal(msg, sinfo->chains,
3528 sinfo->chain_signal,
3529 NL80211_STA_INFO_CHAIN_SIGNAL))
3530 goto nla_put_failure;
3531 }
3532 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3533 if (!nl80211_put_signal(msg, sinfo->chains,
3534 sinfo->chain_signal_avg,
3535 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3536 goto nla_put_failure;
3537 }
420e7fab 3538 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3539 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3540 NL80211_STA_INFO_TX_BITRATE))
3541 goto nla_put_failure;
3542 }
3543 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3544 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3545 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3546 goto nla_put_failure;
420e7fab 3547 }
9360ffd1
DM		 3548 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3549 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3550 sinfo->rx_packets))
3551 goto nla_put_failure;
3552 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3553 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3554 sinfo->tx_packets))
3555 goto nla_put_failure;
3556 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3557 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3558 sinfo->tx_retries))
3559 goto nla_put_failure;
3560 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3561 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3562 sinfo->tx_failed))
3563 goto nla_put_failure;
3564 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3565 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3566 sinfo->beacon_loss_count))
3567 goto nla_put_failure;
3b1c5a53
MP		 3568 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3569 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3570 sinfo->local_pm))
3571 goto nla_put_failure;
3572 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3573 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3574 sinfo->peer_pm))
3575 goto nla_put_failure;
3576 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3577 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3578 sinfo->nonpeer_pm))
3579 goto nla_put_failure;
f4263c98
PS		 3580 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3581 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3582 if (!bss_param)
3583 goto nla_put_failure;
3584
9360ffd1
DM		 3585 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3586 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3587 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3588 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3589 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3590 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3591 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3592 sinfo->bss_param.dtim_period) ||
3593 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3594 sinfo->bss_param.beacon_interval))
3595 goto nla_put_failure;
f4263c98
PS		 3596
3597 nla_nest_end(msg, bss_param);
3598 }
9360ffd1
DM		 3599 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3600 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3601 sizeof(struct nl80211_sta_flag_update),
3602 &sinfo->sta_flags))
3603 goto nla_put_failure;
7eab0f64
JL		 3604 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3605 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3606 sinfo->t_offset))
3607 goto nla_put_failure;
2ec600d6 3608 nla_nest_end(msg, sinfoattr);
fd5b74dc 3609
9360ffd1
DM		 3610 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3611 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3612 sinfo->assoc_req_ies))
3613 goto nla_put_failure;
50d3dfb7 3614
fd5b74dc
JB		 3615 return genlmsg_end(msg, hdr);
3616
3617 nla_put_failure:
bc3ed28c
TG		 3618 genlmsg_cancel(msg, hdr);
3619 return -EMSGSIZE;
fd5b74dc
JB		 3620}
3621
2ec600d6 3622static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3623 struct netlink_callback *cb)
2ec600d6 3624{
2ec600d6
LCC		 3625 struct station_info sinfo;
3626 struct cfg80211_registered_device *dev;
97990a06 3627 struct wireless_dev *wdev;
2ec600d6 3628 u8 mac_addr[ETH_ALEN];
97990a06 3629 int sta_idx = cb->args[2];
2ec600d6 3630 int err;
2ec600d6 3631
97990a06 3632 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3633 if (err)
3634 return err;
bba95fef 3635
97990a06
JB		 3636 if (!wdev->netdev) {
3637 err = -EINVAL;
3638 goto out_err;
3639 }
3640
bba95fef 3641 if (!dev->ops->dump_station) {
eec60b03 3642 err = -EOPNOTSUPP;
bba95fef
JB		 3643 goto out_err;
3644 }
3645
bba95fef 3646 while (1) {
f612cedf 3647 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3648 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3649 mac_addr, &sinfo);
bba95fef
JB		 3650 if (err == -ENOENT)
3651 break;
3652 if (err)
3b85875a 3653 goto out_err;
bba95fef
JB		 3654
3655 if (nl80211_send_station(skb,
15e47304 3656 NETLINK_CB(cb->skb).portid,
bba95fef 3657 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3658 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3659 &sinfo) < 0)
3660 goto out;
3661
3662 sta_idx++;
3663 }
3664
3665
3666 out:
97990a06 3667 cb->args[2] = sta_idx;
bba95fef 3668 err = skb->len;
bba95fef 3669 out_err:
97990a06 3670 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3671
3672 return err;
2ec600d6 3673}
fd5b74dc 3674
5727ef1b
JB		 3675static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3676{
4c476991
JB		 3677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3678 struct net_device *dev = info->user_ptr[1];
2ec600d6 3679 struct station_info sinfo;
fd5b74dc
JB		 3680 struct sk_buff *msg;
3681 u8 *mac_addr = NULL;
4c476991 3682 int err;
fd5b74dc 3683
2ec600d6 3684 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3685
3686 if (!info->attrs[NL80211_ATTR_MAC])
3687 return -EINVAL;
3688
3689 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3690
4c476991
JB		 3691 if (!rdev->ops->get_station)
3692 return -EOPNOTSUPP;
3b85875a 3693
e35e4d28 3694 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3695 if (err)
4c476991 3696 return err;
2ec600d6 3697
fd2120ca 3698 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3699 if (!msg)
4c476991 3700 return -ENOMEM;
fd5b74dc 3701
15e47304 3702 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3703 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3704 nlmsg_free(msg);
3705 return -ENOBUFS;
3706 }
3b85875a 3707
4c476991 3708 return genlmsg_reply(msg, info);
5727ef1b
JB		 3709}
3710
77ee7c89
JB		 3711int cfg80211_check_station_change(struct wiphy *wiphy,
3712 struct station_parameters *params,
3713 enum cfg80211_station_type statype)
3714{
3715 if (params->listen_interval != -1)
3716 return -EINVAL;
3717 if (params->aid)
3718 return -EINVAL;
3719
3720 /* When you run into this, adjust the code below for the new flag */
3721 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3722
3723 switch (statype) {
eef941e6
TP		 3724 case CFG80211_STA_MESH_PEER_KERNEL:
3725 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3726 /*
3727 * No ignoring the TDLS flag here -- the userspace mesh
3728 * code doesn't have the bug of including TDLS in the
3729 * mask everywhere.
3730 */
3731 if (params->sta_flags_mask &
3732 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3733 BIT(NL80211_STA_FLAG_MFP) |
3734 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3735 return -EINVAL;
3736 break;
3737 case CFG80211_STA_TDLS_PEER_SETUP:
3738 case CFG80211_STA_TDLS_PEER_ACTIVE:
3739 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3740 return -EINVAL;
3741 /* ignore since it can't change */
3742 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3743 break;
3744 default:
3745 /* disallow mesh-specific things */
3746 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3747 return -EINVAL;
3748 if (params->local_pm)
3749 return -EINVAL;
3750 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3751 return -EINVAL;
3752 }
3753
3754 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3755 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3756 /* TDLS can't be set, ... */
3757 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3758 return -EINVAL;
3759 /*
3760 * ... but don't bother the driver with it. This works around
3761 * a hostapd/wpa_supplicant issue -- it always includes the
3762 * TLDS_PEER flag in the mask even for AP mode.
3763 */
3764 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3765 }
3766
3767 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3768 /* reject other things that can't change */
3769 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3770 return -EINVAL;
3771 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3772 return -EINVAL;
3773 if (params->supported_rates)
3774 return -EINVAL;
3775 if (params->ext_capab || params->ht_capa || params->vht_capa)
3776 return -EINVAL;
3777 }
3778
3779 if (statype != CFG80211_STA_AP_CLIENT) {
3780 if (params->vlan)
3781 return -EINVAL;
3782 }
3783
3784 switch (statype) {
3785 case CFG80211_STA_AP_MLME_CLIENT:
3786 /* Use this only for authorizing/unauthorizing a station */
3787 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3788 return -EOPNOTSUPP;
3789 break;
3790 case CFG80211_STA_AP_CLIENT:
3791 /* accept only the listed bits */
3792 if (params->sta_flags_mask &
3793 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3794 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3795 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3796 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3797 BIT(NL80211_STA_FLAG_WME) |
3798 BIT(NL80211_STA_FLAG_MFP)))
3799 return -EINVAL;
3800
3801 /* but authenticated/associated only if driver handles it */
3802 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3803 params->sta_flags_mask &
3804 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3805 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3806 return -EINVAL;
3807 break;
3808 case CFG80211_STA_IBSS:
3809 case CFG80211_STA_AP_STA:
3810 /* reject any changes other than AUTHORIZED */
3811 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3812 return -EINVAL;
3813 break;
3814 case CFG80211_STA_TDLS_PEER_SETUP:
3815 /* reject any changes other than AUTHORIZED or WME */
3816 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3817 BIT(NL80211_STA_FLAG_WME)))
3818 return -EINVAL;
3819 /* force (at least) rates when authorizing */
3820 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3821 !params->supported_rates)
3822 return -EINVAL;
3823 break;
3824 case CFG80211_STA_TDLS_PEER_ACTIVE:
3825 /* reject any changes */
3826 return -EINVAL;
eef941e6 3827 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3828 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3829 return -EINVAL;
3830 break;
eef941e6 3831 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3832 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3833 return -EINVAL;
3834 break;
3835 }
3836
3837 return 0;
3838}
3839EXPORT_SYMBOL(cfg80211_check_station_change);
3840
5727ef1b 3841/*
c258d2de 3842 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3843 */
80b99899
JB		 3844static struct net_device *get_vlan(struct genl_info *info,
3845 struct cfg80211_registered_device *rdev)
5727ef1b 3846{
463d0183 3847 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3848 struct net_device *v;
3849 int ret;
3850
3851 if (!vlanattr)
3852 return NULL;
3853
3854 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3855 if (!v)
3856 return ERR_PTR(-ENODEV);
3857
3858 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3859 ret = -EINVAL;
3860 goto error;
5727ef1b 3861 }
80b99899 3862
77ee7c89
JB		 3863 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3864 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3865 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3866 ret = -EINVAL;
3867 goto error;
3868 }
3869
80b99899
JB		 3870 if (!netif_running(v)) {
3871 ret = -ENETDOWN;
3872 goto error;
3873 }
3874
3875 return v;
3876 error:
3877 dev_put(v);
3878 return ERR_PTR(ret);
5727ef1b
JB		 3879}
3880
df881293
JM		 3881static struct nla_policy
3882nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3883 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3884 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3885};
3886
ff276691
JB		 3887static int nl80211_parse_sta_wme(struct genl_info *info,
3888 struct station_parameters *params)
df881293 3889{
df881293
JM		 3890 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3891 struct nlattr *nla;
3892 int err;
3893
df881293
JM		 3894 /* parse WME attributes if present */
3895 if (!info->attrs[NL80211_ATTR_STA_WME])
3896 return 0;
3897
3898 nla = info->attrs[NL80211_ATTR_STA_WME];
3899 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3900 nl80211_sta_wme_policy);
3901 if (err)
3902 return err;
3903
3904 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3905 params->uapsd_queues = nla_get_u8(
3906 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3907 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3908 return -EINVAL;
3909
3910 if (tb[NL80211_STA_WME_MAX_SP])
3911 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3912
3913 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3914 return -EINVAL;
3915
3916 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3917
3918 return 0;
3919}
3920
c01fc9ad
SD		 3921static int nl80211_parse_sta_channel_info(struct genl_info *info,
3922 struct station_parameters *params)
3923{
3924 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
3925 params->supported_channels =
3926 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3927 params->supported_channels_len =
3928 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3929 /*
3930 * Need to include at least one (first channel, number of
3931 * channels) tuple for each subband, and must have proper
3932 * tuples for the rest of the data as well.
3933 */
3934 if (params->supported_channels_len < 2)
3935 return -EINVAL;
3936 if (params->supported_channels_len % 2)
3937 return -EINVAL;
3938 }
3939
3940 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
3941 params->supported_oper_classes =
3942 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3943 params->supported_oper_classes_len =
3944 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3945 /*
3946 * The value of the Length field of the Supported Operating
3947 * Classes element is between 2 and 253.
3948 */
3949 if (params->supported_oper_classes_len < 2 ||
3950 params->supported_oper_classes_len > 253)
3951 return -EINVAL;
3952 }
3953 return 0;
3954}
3955
ff276691
JB		 3956static int nl80211_set_station_tdls(struct genl_info *info,
3957 struct station_parameters *params)
3958{
c01fc9ad 3959 int err;
ff276691 3960 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 3961 if (info->attrs[NL80211_ATTR_PEER_AID])
3962 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 3963 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3964 params->ht_capa =
3965 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3966 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3967 params->vht_capa =
3968 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3969
c01fc9ad
SD		 3970 err = nl80211_parse_sta_channel_info(info, params);
3971 if (err)
3972 return err;
3973
ff276691
JB		 3974 return nl80211_parse_sta_wme(info, params);
3975}
3976
5727ef1b
JB		 3977static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3978{
4c476991 3979 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3980 struct net_device *dev = info->user_ptr[1];
5727ef1b 3981 struct station_parameters params;
77ee7c89
JB		 3982 u8 *mac_addr;
3983 int err;
5727ef1b
JB		 3984
3985 memset(&params, 0, sizeof(params));
3986
3987 params.listen_interval = -1;
3988
77ee7c89
JB		 3989 if (!rdev->ops->change_station)
3990 return -EOPNOTSUPP;
3991
5727ef1b
JB		 3992 if (info->attrs[NL80211_ATTR_STA_AID])
3993 return -EINVAL;
3994
3995 if (!info->attrs[NL80211_ATTR_MAC])
3996 return -EINVAL;
3997
3998 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3999
4000 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4001 params.supported_rates =
4002 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4003 params.supported_rates_len =
4004 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4005 }
4006
9d62a986
JM		 4007 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4008 params.capability =
4009 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4010 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4011 }
4012
4013 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4014 params.ext_capab =
4015 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4016 params.ext_capab_len =
4017 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4018 }
4019
df881293 4020 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4021 return -EINVAL;
36aedc90 4022
bdd3ae3d 4023 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4024 return -EINVAL;
4025
f8bacc21 4026 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4027 params.plink_action =
f8bacc21
JB		 4028 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4029 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4030 return -EINVAL;
4031 }
2ec600d6 4032
f8bacc21 4033 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4034 params.plink_state =
f8bacc21
JB		 4035 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4036 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4037 return -EINVAL;
4038 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4039 }
9c3990aa 4040
3b1c5a53
MP		 4041 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4042 enum nl80211_mesh_power_mode pm = nla_get_u32(
4043 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4044
4045 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4046 pm > NL80211_MESH_POWER_MAX)
4047 return -EINVAL;
4048
4049 params.local_pm = pm;
4050 }
4051
77ee7c89
JB		 4052 /* Include parameters for TDLS peer (will check later) */
4053 err = nl80211_set_station_tdls(info, &params);
4054 if (err)
4055 return err;
4056
4057 params.vlan = get_vlan(info, rdev);
4058 if (IS_ERR(params.vlan))
4059 return PTR_ERR(params.vlan);
4060
a97f4424
JB		 4061 switch (dev->ieee80211_ptr->iftype) {
4062 case NL80211_IFTYPE_AP:
4063 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4064 case NL80211_IFTYPE_P2P_GO:
074ac8df 4065 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4066 case NL80211_IFTYPE_STATION:
267335d6 4067 case NL80211_IFTYPE_ADHOC:
a97f4424 4068 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4069 break;
4070 default:
77ee7c89
JB		 4071 err = -EOPNOTSUPP;
4072 goto out_put_vlan;
034d655e
JB		 4073 }
4074
77ee7c89 4075 /* driver will call cfg80211_check_station_change() */
e35e4d28 4076 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4077
77ee7c89 4078 out_put_vlan:
5727ef1b
JB		 4079 if (params.vlan)
4080 dev_put(params.vlan);
3b85875a 4081
5727ef1b
JB		 4082 return err;
4083}
4084
4085static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4086{
4c476991 4087 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4088 int err;
4c476991 4089 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4090 struct station_parameters params;
4091 u8 *mac_addr = NULL;
4092
4093 memset(&params, 0, sizeof(params));
4094
984c311b
JB		 4095 if (!rdev->ops->add_station)
4096 return -EOPNOTSUPP;
4097
5727ef1b
JB		 4098 if (!info->attrs[NL80211_ATTR_MAC])
4099 return -EINVAL;
4100
5727ef1b
JB		 4101 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4102 return -EINVAL;
4103
4104 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4105 return -EINVAL;
4106
5e4b6f56
JM		 4107 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4108 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4109 return -EINVAL;
4110
5727ef1b
JB		 4111 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4112 params.supported_rates =
4113 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4114 params.supported_rates_len =
4115 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4116 params.listen_interval =
4117 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4118
3d124ea2 4119 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4120 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4121 else
4122 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4123 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4124 return -EINVAL;
51b50fbe 4125
9d62a986
JM		 4126 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4127 params.capability =
4128 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4129 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4130 }
4131
4132 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4133 params.ext_capab =
4134 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4135 params.ext_capab_len =
4136 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4137 }
4138
36aedc90
JM		 4139 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4140 params.ht_capa =
4141 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4142
f461be3e
MP		 4143 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4144 params.vht_capa =
4145 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4146
f8bacc21 4147 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4148 params.plink_action =
f8bacc21
JB		 4149 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4150 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4151 return -EINVAL;
4152 }
96b78dff 4153
c01fc9ad
SD		 4154 err = nl80211_parse_sta_channel_info(info, &params);
4155 if (err)
4156 return err;
4157
ff276691
JB		 4158 err = nl80211_parse_sta_wme(info, &params);
4159 if (err)
4160 return err;
bdd90d5e 4161
bdd3ae3d 4162 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4163 return -EINVAL;
4164
77ee7c89
JB		 4165 /* When you run into this, adjust the code below for the new flag */
4166 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4167
bdd90d5e
JB		 4168 switch (dev->ieee80211_ptr->iftype) {
4169 case NL80211_IFTYPE_AP:
4170 case NL80211_IFTYPE_AP_VLAN:
4171 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4172 /* ignore WME attributes if iface/sta is not capable */
4173 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4174 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4175 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4176
bdd90d5e 4177 /* TDLS peers cannot be added */
3d124ea2
JM		 4178 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4179 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4180 return -EINVAL;
bdd90d5e
JB		 4181 /* but don't bother the driver with it */
4182 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4183
d582cffb
JB		 4184 /* allow authenticated/associated only if driver handles it */
4185 if (!(rdev->wiphy.features &
4186 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4187 params.sta_flags_mask &
4188 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4189 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4190 return -EINVAL;
4191
bdd90d5e
JB		 4192 /* must be last in here for error handling */
4193 params.vlan = get_vlan(info, rdev);
4194 if (IS_ERR(params.vlan))
4195 return PTR_ERR(params.vlan);
4196 break;
4197 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4198 /* ignore uAPSD data */
4199 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4200
d582cffb
JB		 4201 /* associated is disallowed */
4202 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4203 return -EINVAL;
bdd90d5e 4204 /* TDLS peers cannot be added */
3d124ea2
JM		 4205 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4206 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4207 return -EINVAL;
4208 break;
4209 case NL80211_IFTYPE_STATION:
93d08f0b 4210 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4211 /* ignore uAPSD data */
4212 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4213
77ee7c89
JB		 4214 /* these are disallowed */
4215 if (params.sta_flags_mask &
4216 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4217 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4218 return -EINVAL;
bdd90d5e
JB		 4219 /* Only TDLS peers can be added */
4220 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4221 return -EINVAL;
4222 /* Can only add if TDLS ... */
4223 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4224 return -EOPNOTSUPP;
4225 /* ... with external setup is supported */
4226 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4227 return -EOPNOTSUPP;
77ee7c89
JB		 4228 /*
4229 * Older wpa_supplicant versions always mark the TDLS peer
4230 * as authorized, but it shouldn't yet be.
4231 */
4232 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4233 break;
4234 default:
4235 return -EOPNOTSUPP;
c75786c9
EP		 4236 }
4237
bdd90d5e 4238 /* be aware of params.vlan when changing code here */
5727ef1b 4239
e35e4d28 4240 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4241
5727ef1b
JB		 4242 if (params.vlan)
4243 dev_put(params.vlan);
5727ef1b
JB		 4244 return err;
4245}
4246
4247static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4248{
4c476991
JB		 4249 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4250 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4251 u8 *mac_addr = NULL;
4252
4253 if (info->attrs[NL80211_ATTR_MAC])
4254 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4255
e80cf853 4256 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4257 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4258 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4259 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4260 return -EINVAL;
5727ef1b 4261
4c476991
JB		 4262 if (!rdev->ops->del_station)
4263 return -EOPNOTSUPP;
3b85875a 4264
e35e4d28 4265 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4266}
4267
15e47304 4268static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4269 int flags, struct net_device *dev,
4270 u8 *dst, u8 *next_hop,
4271 struct mpath_info *pinfo)
4272{
4273 void *hdr;
4274 struct nlattr *pinfoattr;
4275
15e47304 4276 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4277 if (!hdr)
4278 return -1;
4279
9360ffd1
DM		 4280 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4281 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4282 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4283 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4284 goto nla_put_failure;
f5ea9120 4285
2ec600d6
LCC		 4286 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4287 if (!pinfoattr)
4288 goto nla_put_failure;
9360ffd1
DM		 4289 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4290 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4291 pinfo->frame_qlen))
4292 goto nla_put_failure;
4293 if (((pinfo->filled & MPATH_INFO_SN) &&
4294 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4295 ((pinfo->filled & MPATH_INFO_METRIC) &&
4296 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4297 pinfo->metric)) ||
4298 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4299 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4300 pinfo->exptime)) ||
4301 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4302 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4303 pinfo->flags)) ||
4304 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4305 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4306 pinfo->discovery_timeout)) ||
4307 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4308 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4309 pinfo->discovery_retries)))
4310 goto nla_put_failure;
2ec600d6
LCC		 4311
4312 nla_nest_end(msg, pinfoattr);
4313
4314 return genlmsg_end(msg, hdr);
4315
4316 nla_put_failure:
bc3ed28c
TG		 4317 genlmsg_cancel(msg, hdr);
4318 return -EMSGSIZE;
2ec600d6
LCC		 4319}
4320
4321static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4322 struct netlink_callback *cb)
2ec600d6 4323{
2ec600d6
LCC		 4324 struct mpath_info pinfo;
4325 struct cfg80211_registered_device *dev;
97990a06 4326 struct wireless_dev *wdev;
2ec600d6
LCC		 4327 u8 dst[ETH_ALEN];
4328 u8 next_hop[ETH_ALEN];
97990a06 4329 int path_idx = cb->args[2];
2ec600d6 4330 int err;
2ec600d6 4331
97990a06 4332 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4333 if (err)
4334 return err;
bba95fef
JB		 4335
4336 if (!dev->ops->dump_mpath) {
eec60b03 4337 err = -EOPNOTSUPP;
bba95fef
JB		 4338 goto out_err;
4339 }
4340
97990a06 4341 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4342 err = -EOPNOTSUPP;
0448b5fc 4343 goto out_err;
eec60b03
JM		 4344 }
4345
bba95fef 4346 while (1) {
97990a06
JB		 4347 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4348 next_hop, &pinfo);
bba95fef 4349 if (err == -ENOENT)
2ec600d6 4350 break;
bba95fef 4351 if (err)
3b85875a 4352 goto out_err;
2ec600d6 4353
15e47304 4354 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4355 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4356 wdev->netdev, dst, next_hop,
bba95fef
JB		 4357 &pinfo) < 0)
4358 goto out;
2ec600d6 4359
bba95fef 4360 path_idx++;
2ec600d6 4361 }
2ec600d6 4362
2ec600d6 4363
bba95fef 4364 out:
97990a06 4365 cb->args[2] = path_idx;
bba95fef 4366 err = skb->len;
bba95fef 4367 out_err:
97990a06 4368 nl80211_finish_wdev_dump(dev);
bba95fef 4369 return err;
2ec600d6
LCC		 4370}
4371
4372static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4373{
4c476991 4374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4375 int err;
4c476991 4376 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4377 struct mpath_info pinfo;
4378 struct sk_buff *msg;
4379 u8 *dst = NULL;
4380 u8 next_hop[ETH_ALEN];
4381
4382 memset(&pinfo, 0, sizeof(pinfo));
4383
4384 if (!info->attrs[NL80211_ATTR_MAC])
4385 return -EINVAL;
4386
4387 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4388
4c476991
JB		 4389 if (!rdev->ops->get_mpath)
4390 return -EOPNOTSUPP;
2ec600d6 4391
4c476991
JB		 4392 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4393 return -EOPNOTSUPP;
eec60b03 4394
e35e4d28 4395 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4396 if (err)
4c476991 4397 return err;
2ec600d6 4398
fd2120ca 4399 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4400 if (!msg)
4c476991 4401 return -ENOMEM;
2ec600d6 4402
15e47304 4403 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4404 dev, dst, next_hop, &pinfo) < 0) {
4405 nlmsg_free(msg);
4406 return -ENOBUFS;
4407 }
3b85875a 4408
4c476991 4409 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4410}
4411
4412static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4413{
4c476991
JB		 4414 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4415 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4416 u8 *dst = NULL;
4417 u8 *next_hop = NULL;
4418
4419 if (!info->attrs[NL80211_ATTR_MAC])
4420 return -EINVAL;
4421
4422 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4423 return -EINVAL;
4424
4425 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4426 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4427
4c476991
JB		 4428 if (!rdev->ops->change_mpath)
4429 return -EOPNOTSUPP;
35a8efe1 4430
4c476991
JB		 4431 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4432 return -EOPNOTSUPP;
2ec600d6 4433
e35e4d28 4434 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4435}
4c476991 4436
2ec600d6
LCC		 4437static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4438{
4c476991
JB		 4439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4440 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4441 u8 *dst = NULL;
4442 u8 *next_hop = NULL;
4443
4444 if (!info->attrs[NL80211_ATTR_MAC])
4445 return -EINVAL;
4446
4447 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4448 return -EINVAL;
4449
4450 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4451 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4452
4c476991
JB		 4453 if (!rdev->ops->add_mpath)
4454 return -EOPNOTSUPP;
35a8efe1 4455
4c476991
JB		 4456 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4457 return -EOPNOTSUPP;
2ec600d6 4458
e35e4d28 4459 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4460}
4461
4462static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4463{
4c476991
JB		 4464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4465 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4466 u8 *dst = NULL;
4467
4468 if (info->attrs[NL80211_ATTR_MAC])
4469 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4470
4c476991
JB		 4471 if (!rdev->ops->del_mpath)
4472 return -EOPNOTSUPP;
3b85875a 4473
e35e4d28 4474 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4475}
4476
9f1ba906
JM		 4477static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4478{
4c476991
JB		 4479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4480 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4481 struct bss_parameters params;
4482
4483 memset(&params, 0, sizeof(params));
4484 /* default to not changing parameters */
4485 params.use_cts_prot = -1;
4486 params.use_short_preamble = -1;
4487 params.use_short_slot_time = -1;
fd8aaaf3 4488 params.ap_isolate = -1;
50b12f59 4489 params.ht_opmode = -1;
53cabad7
JB		 4490 params.p2p_ctwindow = -1;
4491 params.p2p_opp_ps = -1;
9f1ba906
JM		 4492
4493 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4494 params.use_cts_prot =
4495 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4496 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4497 params.use_short_preamble =
4498 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4499 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4500 params.use_short_slot_time =
4501 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4502 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4503 params.basic_rates =
4504 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4505 params.basic_rates_len =
4506 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4507 }
fd8aaaf3
FF		 4508 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4509 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4510 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4511 params.ht_opmode =
4512 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4513
53cabad7
JB		 4514 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4515 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4516 return -EINVAL;
4517 params.p2p_ctwindow =
4518 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4519 if (params.p2p_ctwindow < 0)
4520 return -EINVAL;
4521 if (params.p2p_ctwindow != 0 &&
4522 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4523 return -EINVAL;
4524 }
4525
4526 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4527 u8 tmp;
4528
4529 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4530 return -EINVAL;
4531 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4532 if (tmp > 1)
4533 return -EINVAL;
4534 params.p2p_opp_ps = tmp;
4535 if (params.p2p_opp_ps &&
4536 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4537 return -EINVAL;
4538 }
4539
4c476991
JB		 4540 if (!rdev->ops->change_bss)
4541 return -EOPNOTSUPP;
9f1ba906 4542
074ac8df 4543 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4544 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4545 return -EOPNOTSUPP;
3b85875a 4546
e35e4d28 4547 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4548}
4549
b54452b0 4550static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4551 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4552 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4553 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4554 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4555 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4556 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4557};
4558
4559static int parse_reg_rule(struct nlattr *tb[],
4560 struct ieee80211_reg_rule *reg_rule)
4561{
4562 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4563 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4564
4565 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4566 return -EINVAL;
4567 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4568 return -EINVAL;
4569 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4570 return -EINVAL;
4571 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4572 return -EINVAL;
4573 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4574 return -EINVAL;
4575
4576 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4577
4578 freq_range->start_freq_khz =
4579 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4580 freq_range->end_freq_khz =
4581 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4582 freq_range->max_bandwidth_khz =
4583 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4584
4585 power_rule->max_eirp =
4586 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4587
4588 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4589 power_rule->max_antenna_gain =
4590 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4591
4592 return 0;
4593}
4594
4595static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4596{
4597 int r;
4598 char *data = NULL;
57b5ce07 4599 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4600
80778f18
LR		 4601 /*
4602 * You should only get this when cfg80211 hasn't yet initialized
4603 * completely when built-in to the kernel right between the time
4604 * window between nl80211_init() and regulatory_init(), if that is
4605 * even possible.
4606 */
458f4f9e 4607 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4608 return -EINPROGRESS;
80778f18 4609
fe33eb39
LR		 4610 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4611 return -EINVAL;
b2e1b302
LR		 4612
4613 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4614
57b5ce07
LR		 4615 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4616 user_reg_hint_type =
4617 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4618 else
4619 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4620
4621 switch (user_reg_hint_type) {
4622 case NL80211_USER_REG_HINT_USER:
4623 case NL80211_USER_REG_HINT_CELL_BASE:
4624 break;
4625 default:
4626 return -EINVAL;
4627 }
4628
4629 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4630
b2e1b302
LR		 4631 return r;
4632}
4633
24bdd9f4 4634static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4635 struct genl_info *info)
93da9cc1 4636{
4c476991 4637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4638 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4639 struct wireless_dev *wdev = dev->ieee80211_ptr;
4640 struct mesh_config cur_params;
4641 int err = 0;
93da9cc1 4642 void *hdr;
4643 struct nlattr *pinfoattr;
4644 struct sk_buff *msg;
4645
29cbe68c
JB		 4646 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4647 return -EOPNOTSUPP;
4648
24bdd9f4 4649 if (!rdev->ops->get_mesh_config)
4c476991 4650 return -EOPNOTSUPP;
f3f92586 4651
29cbe68c
JB		 4652 wdev_lock(wdev);
4653 /* If not connected, get default parameters */
4654 if (!wdev->mesh_id_len)
4655 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4656 else
e35e4d28 4657 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4658 wdev_unlock(wdev);
4659
93da9cc1 4660 if (err)
4c476991 4661 return err;
93da9cc1 4662
4663 /* Draw up a netlink message to send back */
fd2120ca 4664 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4665 if (!msg)
4666 return -ENOMEM;
15e47304 4667 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4668 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4669 if (!hdr)
efe1cf0c 4670 goto out;
24bdd9f4 4671 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4672 if (!pinfoattr)
4673 goto nla_put_failure;
9360ffd1
DM		 4674 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4675 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4676 cur_params.dot11MeshRetryTimeout) ||
4677 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4678 cur_params.dot11MeshConfirmTimeout) ||
4679 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4680 cur_params.dot11MeshHoldingTimeout) ||
4681 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4682 cur_params.dot11MeshMaxPeerLinks) ||
4683 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4684 cur_params.dot11MeshMaxRetries) ||
4685 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4686 cur_params.dot11MeshTTL) ||
4687 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4688 cur_params.element_ttl) ||
4689 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4690 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4691 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4692 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4693 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4694 cur_params.dot11MeshHWMPmaxPREQretries) ||
4695 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4696 cur_params.path_refresh_time) ||
4697 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4698 cur_params.min_discovery_timeout) ||
4699 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4700 cur_params.dot11MeshHWMPactivePathTimeout) ||
4701 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4702 cur_params.dot11MeshHWMPpreqMinInterval) ||
4703 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4704 cur_params.dot11MeshHWMPperrMinInterval) ||
4705 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4706 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4707 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4708 cur_params.dot11MeshHWMPRootMode) ||
4709 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4710 cur_params.dot11MeshHWMPRannInterval) ||
4711 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4712 cur_params.dot11MeshGateAnnouncementProtocol) ||
4713 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4714 cur_params.dot11MeshForwarding) ||
4715 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4716 cur_params.rssi_threshold) ||
4717 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4718 cur_params.ht_opmode) ||
4719 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4720 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4721 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4722 cur_params.dot11MeshHWMProotInterval) ||
4723 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4724 cur_params.dot11MeshHWMPconfirmationInterval) ||
4725 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4726 cur_params.power_mode) ||
4727 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4728 cur_params.dot11MeshAwakeWindowDuration) ||
4729 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4730 cur_params.plink_timeout))
9360ffd1 4731 goto nla_put_failure;
93da9cc1 4732 nla_nest_end(msg, pinfoattr);
4733 genlmsg_end(msg, hdr);
4c476991 4734 return genlmsg_reply(msg, info);
93da9cc1 4735
3b85875a 4736 nla_put_failure:
93da9cc1 4737 genlmsg_cancel(msg, hdr);
efe1cf0c 4738 out:
d080e275 4739 nlmsg_free(msg);
4c476991 4740 return -ENOBUFS;
93da9cc1 4741}
4742
b54452b0 4743static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4744 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4745 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4746 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4747 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4748 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4749 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4750 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4751 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4752 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4753 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4754 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4755 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4756 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4757 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4758 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4759 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4760 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4761 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4762 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4763 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4764 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4765 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4766 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4767 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4768 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4769 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4770 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4771 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4772};
4773
c80d545d
JC		 4774static const struct nla_policy
4775 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4776 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4777 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4778 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4779 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4780 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4781 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4782 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4783 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4784 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4785};
4786
24bdd9f4 4787static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4788 struct mesh_config *cfg,
4789 u32 *mask_out)
93da9cc1 4790{
93da9cc1 4791 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4792 u32 mask = 0;
93da9cc1 4793
ea54fba2
MP		 4794#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4795do { \
4796 if (tb[attr]) { \
4797 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4798 return -EINVAL; \
4799 cfg->param = fn(tb[attr]); \
4800 mask |= (1 << (attr - 1)); \
4801 } \
4802} while (0)
bd90fdcc
JB		 4803
4804
24bdd9f4 4805 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4806 return -EINVAL;
4807 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4808 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4809 nl80211_meshconf_params_policy))
93da9cc1 4810 return -EINVAL;
4811
93da9cc1 4812 /* This makes sure that there aren't more than 32 mesh config
4813 * parameters (otherwise our bitfield scheme would not work.) */
4814 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4815
4816 /* Fill in the params struct */
ea54fba2 4817 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4818 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4819 nla_get_u16);
ea54fba2 4820 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4821 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4822 nla_get_u16);
ea54fba2 4823 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4824 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4825 nla_get_u16);
ea54fba2 4826 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4827 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4828 nla_get_u16);
ea54fba2 4829 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4830 mask, NL80211_MESHCONF_MAX_RETRIES,
4831 nla_get_u8);
ea54fba2 4832 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4833 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4834 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4835 mask, NL80211_MESHCONF_ELEMENT_TTL,
4836 nla_get_u8);
ea54fba2 4837 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4838 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4839 nla_get_u8);
ea54fba2
MP		 4840 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4841 1, 255, mask,
a4f606ea
CYY		 4842 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4843 nla_get_u32);
ea54fba2 4844 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4845 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4846 nla_get_u8);
ea54fba2 4847 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4848 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4849 nla_get_u32);
ea54fba2 4850 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4851 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4852 nla_get_u16);
ea54fba2
MP		 4853 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4854 1, 65535, mask,
a4f606ea
CYY		 4855 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4856 nla_get_u32);
93da9cc1 4857 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4858 1, 65535, mask,
4859 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4860 nla_get_u16);
dca7e943 4861 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4862 1, 65535, mask,
4863 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4864 nla_get_u16);
93da9cc1 4865 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4866 dot11MeshHWMPnetDiameterTraversalTime,
4867 1, 65535, mask,
a4f606ea
CYY		 4868 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4869 nla_get_u16);
ea54fba2
MP		 4870 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4871 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4872 nla_get_u8);
4873 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4874 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4875 nla_get_u16);
63c5723b 4876 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4877 dot11MeshGateAnnouncementProtocol, 0, 1,
4878 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4879 nla_get_u8);
ea54fba2 4880 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4881 mask, NL80211_MESHCONF_FORWARDING,
4882 nla_get_u8);
83374fe9 4883 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4884 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4885 nla_get_s32);
ea54fba2 4886 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4887 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4888 nla_get_u16);
4889 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4890 1, 65535, mask,
ac1073a6
CYY		 4891 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4892 nla_get_u32);
ea54fba2 4893 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4894 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4895 nla_get_u16);
4896 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4897 dot11MeshHWMPconfirmationInterval,
4898 1, 65535, mask,
728b19e5 4899 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4900 nla_get_u16);
3b1c5a53
MP		 4901 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4902 NL80211_MESH_POWER_ACTIVE,
4903 NL80211_MESH_POWER_MAX,
4904 mask, NL80211_MESHCONF_POWER_MODE,
4905 nla_get_u32);
4906 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4907 0, 65535, mask,
4908 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 4909 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4910 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4911 nla_get_u32);
bd90fdcc
JB		 4912 if (mask_out)
4913 *mask_out = mask;
c80d545d 4914
bd90fdcc
JB		 4915 return 0;
4916
4917#undef FILL_IN_MESH_PARAM_IF_SET
4918}
4919
c80d545d
JC		 4920static int nl80211_parse_mesh_setup(struct genl_info *info,
4921 struct mesh_setup *setup)
4922{
bb2798d4 4923 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4924 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4925
4926 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4927 return -EINVAL;
4928 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4929 info->attrs[NL80211_ATTR_MESH_SETUP],
4930 nl80211_mesh_setup_params_policy))
4931 return -EINVAL;
4932
d299a1f2
JC		 4933 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4934 setup->sync_method =
4935 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4936 IEEE80211_SYNC_METHOD_VENDOR :
4937 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4938
c80d545d
JC		 4939 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4940 setup->path_sel_proto =
4941 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4942 IEEE80211_PATH_PROTOCOL_VENDOR :
4943 IEEE80211_PATH_PROTOCOL_HWMP;
4944
4945 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4946 setup->path_metric =
4947 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4948 IEEE80211_PATH_METRIC_VENDOR :
4949 IEEE80211_PATH_METRIC_AIRTIME;
4950
581a8b0f
JC		 4951
4952 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4953 struct nlattr *ieattr =
581a8b0f 4954 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4955 if (!is_valid_ie_attr(ieattr))
4956 return -EINVAL;
581a8b0f
JC		 4957 setup->ie = nla_data(ieattr);
4958 setup->ie_len = nla_len(ieattr);
c80d545d 4959 }
bb2798d4
TP		 4960 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4961 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4962 return -EINVAL;
4963 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 4964 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4965 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 4966 if (setup->is_secure)
4967 setup->user_mpm = true;
c80d545d 4968
6e16d90b
CT		 4969 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4970 if (!setup->user_mpm)
4971 return -EINVAL;
4972 setup->auth_id =
4973 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4974 }
4975
c80d545d
JC		 4976 return 0;
4977}
4978
24bdd9f4 4979static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4980 struct genl_info *info)
bd90fdcc
JB		 4981{
4982 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4983 struct net_device *dev = info->user_ptr[1];
29cbe68c 4984 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4985 struct mesh_config cfg;
4986 u32 mask;
4987 int err;
4988
29cbe68c
JB		 4989 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4990 return -EOPNOTSUPP;
4991
24bdd9f4 4992 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4993 return -EOPNOTSUPP;
4994
24bdd9f4 4995 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4996 if (err)
4997 return err;
4998
29cbe68c
JB		 4999 wdev_lock(wdev);
5000 if (!wdev->mesh_id_len)
5001 err = -ENOLINK;
5002
5003 if (!err)
e35e4d28 5004 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5005
5006 wdev_unlock(wdev);
5007
5008 return err;
93da9cc1 5009}
5010
f130347c
LR		 5011static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5012{
458f4f9e 5013 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5014 struct sk_buff *msg;
5015 void *hdr = NULL;
5016 struct nlattr *nl_reg_rules;
5017 unsigned int i;
f130347c
LR		 5018
5019 if (!cfg80211_regdomain)
5fe231e8 5020 return -EINVAL;
f130347c 5021
fd2120ca 5022 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5023 if (!msg)
5024 return -ENOBUFS;
f130347c 5025
15e47304 5026 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5027 NL80211_CMD_GET_REG);
5028 if (!hdr)
efe1cf0c 5029 goto put_failure;
f130347c 5030
57b5ce07
LR		 5031 if (reg_last_request_cell_base() &&
5032 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5033 NL80211_USER_REG_HINT_CELL_BASE))
5034 goto nla_put_failure;
5035
458f4f9e
JB		 5036 rcu_read_lock();
5037 regdom = rcu_dereference(cfg80211_regdomain);
5038
5039 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5040 (regdom->dfs_region &&
5041 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5042 goto nla_put_failure_rcu;
5043
f130347c
LR		 5044 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5045 if (!nl_reg_rules)
458f4f9e 5046 goto nla_put_failure_rcu;
f130347c 5047
458f4f9e 5048 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5049 struct nlattr *nl_reg_rule;
5050 const struct ieee80211_reg_rule *reg_rule;
5051 const struct ieee80211_freq_range *freq_range;
5052 const struct ieee80211_power_rule *power_rule;
5053
458f4f9e 5054 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5055 freq_range = &reg_rule->freq_range;
5056 power_rule = &reg_rule->power_rule;
5057
5058 nl_reg_rule = nla_nest_start(msg, i);
5059 if (!nl_reg_rule)
458f4f9e 5060 goto nla_put_failure_rcu;
f130347c 5061
9360ffd1
DM		 5062 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5063 reg_rule->flags) ||
5064 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5065 freq_range->start_freq_khz) ||
5066 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5067 freq_range->end_freq_khz) ||
5068 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5069 freq_range->max_bandwidth_khz) ||
5070 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5071 power_rule->max_antenna_gain) ||
5072 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5073 power_rule->max_eirp))
458f4f9e 5074 goto nla_put_failure_rcu;
f130347c
LR		 5075
5076 nla_nest_end(msg, nl_reg_rule);
5077 }
458f4f9e 5078 rcu_read_unlock();
f130347c
LR		 5079
5080 nla_nest_end(msg, nl_reg_rules);
5081
5082 genlmsg_end(msg, hdr);
5fe231e8 5083 return genlmsg_reply(msg, info);
f130347c 5084
458f4f9e
JB		 5085nla_put_failure_rcu:
5086 rcu_read_unlock();
f130347c
LR		 5087nla_put_failure:
5088 genlmsg_cancel(msg, hdr);
efe1cf0c 5089put_failure:
d080e275 5090 nlmsg_free(msg);
5fe231e8 5091 return -EMSGSIZE;
f130347c
LR		 5092}
5093
b2e1b302
LR		 5094static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5095{
5096 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5097 struct nlattr *nl_reg_rule;
5098 char *alpha2 = NULL;
5099 int rem_reg_rules = 0, r = 0;
5100 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 5101 u8 dfs_region = 0;
b2e1b302
LR		 5102 struct ieee80211_regdomain *rd = NULL;
5103
5104 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5105 return -EINVAL;
5106
5107 if (!info->attrs[NL80211_ATTR_REG_RULES])
5108 return -EINVAL;
5109
5110 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5111
8b60b078
LR		 5112 if (info->attrs[NL80211_ATTR_DFS_REGION])
5113 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5114
b2e1b302 5115 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5116 rem_reg_rules) {
b2e1b302
LR		 5117 num_rules++;
5118 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5119 return -EINVAL;
b2e1b302
LR		 5120 }
5121
b2e1b302 5122 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5123 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5124
5125 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5126 if (!rd)
5127 return -ENOMEM;
b2e1b302
LR		 5128
5129 rd->n_reg_rules = num_rules;
5130 rd->alpha2[0] = alpha2[0];
5131 rd->alpha2[1] = alpha2[1];
5132
8b60b078
LR		 5133 /*
5134 * Disable DFS master mode if the DFS region was
5135 * not supported or known on this kernel.
5136 */
5137 if (reg_supported_dfs_region(dfs_region))
5138 rd->dfs_region = dfs_region;
5139
b2e1b302 5140 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5141 rem_reg_rules) {
b2e1b302 5142 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 5143 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5144 reg_rule_policy);
b2e1b302
LR		 5145 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5146 if (r)
5147 goto bad_reg;
5148
5149 rule_idx++;
5150
d0e18f83
LR		 5151 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5152 r = -EINVAL;
b2e1b302 5153 goto bad_reg;
d0e18f83 5154 }
b2e1b302
LR		 5155 }
5156
b2e1b302 5157 r = set_regdom(rd);
6913b49a 5158 /* set_regdom took ownership */
1a919318 5159 rd = NULL;
b2e1b302 5160
d2372b31 5161 bad_reg:
b2e1b302 5162 kfree(rd);
d0e18f83 5163 return r;
b2e1b302
LR		 5164}
5165
83f5e2cf
JB		 5166static int validate_scan_freqs(struct nlattr *freqs)
5167{
5168 struct nlattr *attr1, *attr2;
5169 int n_channels = 0, tmp1, tmp2;
5170
5171 nla_for_each_nested(attr1, freqs, tmp1) {
5172 n_channels++;
5173 /*
5174 * Some hardware has a limited channel list for
5175 * scanning, and it is pretty much nonsensical
5176 * to scan for a channel twice, so disallow that
5177 * and don't require drivers to check that the
5178 * channel list they get isn't longer than what
5179 * they can scan, as long as they can scan all
5180 * the channels they registered at once.
5181 */
5182 nla_for_each_nested(attr2, freqs, tmp2)
5183 if (attr1 != attr2 &&
5184 nla_get_u32(attr1) == nla_get_u32(attr2))
5185 return 0;
5186 }
5187
5188 return n_channels;
5189}
5190
2a519311
JB		 5191static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5192{
4c476991 5193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5194 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5195 struct cfg80211_scan_request *request;
2a519311
JB		 5196 struct nlattr *attr;
5197 struct wiphy *wiphy;
83f5e2cf 5198 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5199 size_t ie_len;
2a519311 5200
f4a11bb0
JB		 5201 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5202 return -EINVAL;
5203
79c97e97 5204 wiphy = &rdev->wiphy;
2a519311 5205
4c476991
JB		 5206 if (!rdev->ops->scan)
5207 return -EOPNOTSUPP;
2a519311 5208
f9f47529
JB		 5209 if (rdev->scan_req) {
5210 err = -EBUSY;
5211 goto unlock;
5212 }
2a519311
JB		 5213
5214 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5215 n_channels = validate_scan_freqs(
5216 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5217 if (!n_channels) {
5218 err = -EINVAL;
5219 goto unlock;
5220 }
2a519311 5221 } else {
34850ab2 5222 enum ieee80211_band band;
83f5e2cf
JB		 5223 n_channels = 0;
5224
2a519311
JB		 5225 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5226 if (wiphy->bands[band])
5227 n_channels += wiphy->bands[band]->n_channels;
5228 }
5229
5230 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5231 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5232 n_ssids++;
5233
f9f47529
JB		 5234 if (n_ssids > wiphy->max_scan_ssids) {
5235 err = -EINVAL;
5236 goto unlock;
5237 }
2a519311 5238
70692ad2
JM		 5239 if (info->attrs[NL80211_ATTR_IE])
5240 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5241 else
5242 ie_len = 0;
5243
f9f47529
JB		 5244 if (ie_len > wiphy->max_scan_ie_len) {
5245 err = -EINVAL;
5246 goto unlock;
5247 }
18a83659 5248
2a519311 5249 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5250 + sizeof(*request->ssids) * n_ssids
5251 + sizeof(*request->channels) * n_channels
70692ad2 5252 + ie_len, GFP_KERNEL);
f9f47529
JB		 5253 if (!request) {
5254 err = -ENOMEM;
5255 goto unlock;
5256 }
2a519311 5257
2a519311 5258 if (n_ssids)
5ba63533 5259 request->ssids = (void *)&request->channels[n_channels];
2a519311 5260 request->n_ssids = n_ssids;
70692ad2
JM		 5261 if (ie_len) {
5262 if (request->ssids)
5263 request->ie = (void *)(request->ssids + n_ssids);
5264 else
5265 request->ie = (void *)(request->channels + n_channels);
5266 }
2a519311 5267
584991dc 5268 i = 0;
2a519311
JB		 5269 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5270 /* user specified, bail out if channel not found */
2a519311 5271 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5272 struct ieee80211_channel *chan;
5273
5274 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5275
5276 if (!chan) {
2a519311
JB		 5277 err = -EINVAL;
5278 goto out_free;
5279 }
584991dc
JB		 5280
5281 /* ignore disabled channels */
5282 if (chan->flags & IEEE80211_CHAN_DISABLED)
5283 continue;
5284
5285 request->channels[i] = chan;
2a519311
JB		 5286 i++;
5287 }
5288 } else {
34850ab2
JB		 5289 enum ieee80211_band band;
5290
2a519311 5291 /* all channels */
2a519311
JB		 5292 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5293 int j;
5294 if (!wiphy->bands[band])
5295 continue;
5296 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5297 struct ieee80211_channel *chan;
5298
5299 chan = &wiphy->bands[band]->channels[j];
5300
5301 if (chan->flags & IEEE80211_CHAN_DISABLED)
5302 continue;
5303
5304 request->channels[i] = chan;
2a519311
JB		 5305 i++;
5306 }
5307 }
5308 }
5309
584991dc
JB		 5310 if (!i) {
5311 err = -EINVAL;
5312 goto out_free;
5313 }
5314
5315 request->n_channels = i;
5316
2a519311
JB		 5317 i = 0;
5318 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5319 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5320 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5321 err = -EINVAL;
5322 goto out_free;
5323 }
57a27e1d 5324 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5325 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5326 i++;
5327 }
5328 }
5329
70692ad2
JM		 5330 if (info->attrs[NL80211_ATTR_IE]) {
5331 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5332 memcpy((void *)request->ie,
5333 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5334 request->ie_len);
5335 }
5336
34850ab2 5337 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5338 if (wiphy->bands[i])
5339 request->rates[i] =
5340 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5341
5342 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5343 nla_for_each_nested(attr,
5344 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5345 tmp) {
5346 enum ieee80211_band band = nla_type(attr);
5347
84404623 5348 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5349 err = -EINVAL;
5350 goto out_free;
5351 }
5352 err = ieee80211_get_ratemask(wiphy->bands[band],
5353 nla_data(attr),
5354 nla_len(attr),
5355 &request->rates[band]);
5356 if (err)
5357 goto out_free;
5358 }
5359 }
5360
46856bbf 5361 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5362 request->flags = nla_get_u32(
5363 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5364 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5365 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5366 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5367 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5368 err = -EOPNOTSUPP;
5369 goto out_free;
5370 }
5371 }
ed473771 5372
e9f935e3
RM		 5373 request->no_cck =
5374 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5375
fd014284 5376 request->wdev = wdev;
79c97e97 5377 request->wiphy = &rdev->wiphy;
15d6030b 5378 request->scan_start = jiffies;
2a519311 5379
79c97e97 5380 rdev->scan_req = request;
e35e4d28 5381 err = rdev_scan(rdev, request);
2a519311 5382
463d0183 5383 if (!err) {
fd014284
JB		 5384 nl80211_send_scan_start(rdev, wdev);
5385 if (wdev->netdev)
5386 dev_hold(wdev->netdev);
4c476991 5387 } else {
2a519311 5388 out_free:
79c97e97 5389 rdev->scan_req = NULL;
2a519311
JB		 5390 kfree(request);
5391 }
3b85875a 5392
f9f47529 5393 unlock:
2a519311
JB		 5394 return err;
5395}
5396
807f8a8c
LC		 5397static int nl80211_start_sched_scan(struct sk_buff *skb,
5398 struct genl_info *info)
5399{
5400 struct cfg80211_sched_scan_request *request;
5401 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5402 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5403 struct nlattr *attr;
5404 struct wiphy *wiphy;
a1f1c21c 5405 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5406 u32 interval;
807f8a8c
LC		 5407 enum ieee80211_band band;
5408 size_t ie_len;
a1f1c21c 5409 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5410
5411 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5412 !rdev->ops->sched_scan_start)
5413 return -EOPNOTSUPP;
5414
5415 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5416 return -EINVAL;
5417
bbe6ad6d
LC		 5418 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5419 return -EINVAL;
5420
5421 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5422 if (interval == 0)
5423 return -EINVAL;
5424
807f8a8c
LC		 5425 wiphy = &rdev->wiphy;
5426
5427 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5428 n_channels = validate_scan_freqs(
5429 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5430 if (!n_channels)
5431 return -EINVAL;
5432 } else {
5433 n_channels = 0;
5434
5435 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5436 if (wiphy->bands[band])
5437 n_channels += wiphy->bands[band]->n_channels;
5438 }
5439
5440 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5441 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5442 tmp)
5443 n_ssids++;
5444
93b6aa69 5445 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5446 return -EINVAL;
5447
a1f1c21c
LC		 5448 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5449 nla_for_each_nested(attr,
5450 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5451 tmp)
5452 n_match_sets++;
5453
5454 if (n_match_sets > wiphy->max_match_sets)
5455 return -EINVAL;
5456
807f8a8c
LC		 5457 if (info->attrs[NL80211_ATTR_IE])
5458 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5459 else
5460 ie_len = 0;
5461
5a865bad 5462 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5463 return -EINVAL;
5464
c10841ca
LC		 5465 if (rdev->sched_scan_req) {
5466 err = -EINPROGRESS;
5467 goto out;
5468 }
5469
807f8a8c 5470 request = kzalloc(sizeof(*request)
a2cd43c5 5471 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5472 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5473 + sizeof(*request->channels) * n_channels
807f8a8c 5474 + ie_len, GFP_KERNEL);
c10841ca
LC		 5475 if (!request) {
5476 err = -ENOMEM;
5477 goto out;
5478 }
807f8a8c
LC		 5479
5480 if (n_ssids)
5481 request->ssids = (void *)&request->channels[n_channels];
5482 request->n_ssids = n_ssids;
5483 if (ie_len) {
5484 if (request->ssids)
5485 request->ie = (void *)(request->ssids + n_ssids);
5486 else
5487 request->ie = (void *)(request->channels + n_channels);
5488 }
5489
a1f1c21c
LC		 5490 if (n_match_sets) {
5491 if (request->ie)
5492 request->match_sets = (void *)(request->ie + ie_len);
5493 else if (request->ssids)
5494 request->match_sets =
5495 (void *)(request->ssids + n_ssids);
5496 else
5497 request->match_sets =
5498 (void *)(request->channels + n_channels);
5499 }
5500 request->n_match_sets = n_match_sets;
5501
807f8a8c
LC		 5502 i = 0;
5503 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5504 /* user specified, bail out if channel not found */
5505 nla_for_each_nested(attr,
5506 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5507 tmp) {
5508 struct ieee80211_channel *chan;
5509
5510 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5511
5512 if (!chan) {
5513 err = -EINVAL;
5514 goto out_free;
5515 }
5516
5517 /* ignore disabled channels */
5518 if (chan->flags & IEEE80211_CHAN_DISABLED)
5519 continue;
5520
5521 request->channels[i] = chan;
5522 i++;
5523 }
5524 } else {
5525 /* all channels */
5526 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5527 int j;
5528 if (!wiphy->bands[band])
5529 continue;
5530 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5531 struct ieee80211_channel *chan;
5532
5533 chan = &wiphy->bands[band]->channels[j];
5534
5535 if (chan->flags & IEEE80211_CHAN_DISABLED)
5536 continue;
5537
5538 request->channels[i] = chan;
5539 i++;
5540 }
5541 }
5542 }
5543
5544 if (!i) {
5545 err = -EINVAL;
5546 goto out_free;
5547 }
5548
5549 request->n_channels = i;
5550
5551 i = 0;
5552 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5553 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5554 tmp) {
57a27e1d 5555 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5556 err = -EINVAL;
5557 goto out_free;
5558 }
57a27e1d 5559 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5560 memcpy(request->ssids[i].ssid, nla_data(attr),
5561 nla_len(attr));
807f8a8c
LC		 5562 i++;
5563 }
5564 }
5565
a1f1c21c
LC		 5566 i = 0;
5567 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5568 nla_for_each_nested(attr,
5569 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5570 tmp) {
88e920b4 5571 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5572
5573 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5574 nla_data(attr), nla_len(attr),
5575 nl80211_match_policy);
4a4ab0d7 5576 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5577 if (ssid) {
5578 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5579 err = -EINVAL;
5580 goto out_free;
5581 }
5582 memcpy(request->match_sets[i].ssid.ssid,
5583 nla_data(ssid), nla_len(ssid));
5584 request->match_sets[i].ssid.ssid_len =
5585 nla_len(ssid);
5586 }
88e920b4
TP		 5587 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5588 if (rssi)
5589 request->rssi_thold = nla_get_u32(rssi);
5590 else
5591 request->rssi_thold =
5592 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5593 i++;
5594 }
5595 }
5596
807f8a8c
LC		 5597 if (info->attrs[NL80211_ATTR_IE]) {
5598 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5599 memcpy((void *)request->ie,
5600 nla_data(info->attrs[NL80211_ATTR_IE]),
5601 request->ie_len);
5602 }
5603
46856bbf 5604 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5605 request->flags = nla_get_u32(
5606 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5607 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5608 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5609 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5610 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5611 err = -EOPNOTSUPP;
5612 goto out_free;
5613 }
5614 }
ed473771 5615
807f8a8c
LC		 5616 request->dev = dev;
5617 request->wiphy = &rdev->wiphy;
bbe6ad6d 5618 request->interval = interval;
15d6030b 5619 request->scan_start = jiffies;
807f8a8c 5620
e35e4d28 5621 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5622 if (!err) {
5623 rdev->sched_scan_req = request;
5624 nl80211_send_sched_scan(rdev, dev,
5625 NL80211_CMD_START_SCHED_SCAN);
5626 goto out;
5627 }
5628
5629out_free:
5630 kfree(request);
5631out:
5632 return err;
5633}
5634
5635static int nl80211_stop_sched_scan(struct sk_buff *skb,
5636 struct genl_info *info)
5637{
5638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5639
5640 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5641 !rdev->ops->sched_scan_stop)
5642 return -EOPNOTSUPP;
5643
5fe231e8 5644 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5645}
5646
04f39047
SW		 5647static int nl80211_start_radar_detection(struct sk_buff *skb,
5648 struct genl_info *info)
5649{
5650 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5651 struct net_device *dev = info->user_ptr[1];
5652 struct wireless_dev *wdev = dev->ieee80211_ptr;
5653 struct cfg80211_chan_def chandef;
5654 int err;
5655
5656 err = nl80211_parse_chandef(rdev, info, &chandef);
5657 if (err)
5658 return err;
5659
ff311bc1
SW		 5660 if (netif_carrier_ok(dev))
5661 return -EBUSY;
5662
04f39047
SW		 5663 if (wdev->cac_started)
5664 return -EBUSY;
5665
5666 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5667 if (err < 0)
5668 return err;
5669
5670 if (err == 0)
5671 return -EINVAL;
5672
5673 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5674 return -EINVAL;
5675
5676 if (!rdev->ops->start_radar_detection)
5677 return -EOPNOTSUPP;
5678
04f39047
SW		 5679 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5680 chandef.chan, CHAN_MODE_SHARED,
5681 BIT(chandef.width));
5682 if (err)
5fe231e8 5683 return err;
04f39047
SW		 5684
5685 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5686 if (!err) {
5687 wdev->channel = chandef.chan;
5688 wdev->cac_started = true;
5689 wdev->cac_start_time = jiffies;
5690 }
04f39047
SW		 5691 return err;
5692}
5693
16ef1fe2
SW		 5694static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5695{
5696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5697 struct net_device *dev = info->user_ptr[1];
5698 struct wireless_dev *wdev = dev->ieee80211_ptr;
5699 struct cfg80211_csa_settings params;
5700 /* csa_attrs is defined static to avoid waste of stack size - this
5701 * function is called under RTNL lock, so this should not be a problem.
5702 */
5703 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5704 u8 radar_detect_width = 0;
5705 int err;
ee4bc9e7 5706 bool need_new_beacon = false;
16ef1fe2
SW		 5707
5708 if (!rdev->ops->channel_switch ||
5709 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5710 return -EOPNOTSUPP;
5711
ee4bc9e7
SW		 5712 switch (dev->ieee80211_ptr->iftype) {
5713 case NL80211_IFTYPE_AP:
5714 case NL80211_IFTYPE_P2P_GO:
5715 need_new_beacon = true;
5716
5717 /* useless if AP is not running */
5718 if (!wdev->beacon_interval)
5719 return -EINVAL;
5720 break;
5721 case NL80211_IFTYPE_ADHOC:
c6da674a 5722 case NL80211_IFTYPE_MESH_POINT:
ee4bc9e7
SW		 5723 break;
5724 default:
16ef1fe2 5725 return -EOPNOTSUPP;
ee4bc9e7 5726 }
16ef1fe2
SW		 5727
5728 memset(&params, 0, sizeof(params));
5729
5730 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5731 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5732 return -EINVAL;
5733
5734 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5735 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5736 return -EINVAL;
5737
5738 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5739
ee4bc9e7
SW		 5740 if (!need_new_beacon)
5741 goto skip_beacons;
5742
16ef1fe2
SW		 5743 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5744 if (err)
5745 return err;
5746
5747 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5748 info->attrs[NL80211_ATTR_CSA_IES],
5749 nl80211_policy);
5750 if (err)
5751 return err;
5752
5753 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5754 if (err)
5755 return err;
5756
5757 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5758 return -EINVAL;
5759
5760 params.counter_offset_beacon =
5761 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5762 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5763 return -EINVAL;
5764
5765 /* sanity check - counters should be the same */
5766 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5767 params.count)
5768 return -EINVAL;
5769
5770 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5771 params.counter_offset_presp =
5772 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5773 if (params.counter_offset_presp >=
5774 params.beacon_csa.probe_resp_len)
5775 return -EINVAL;
5776
5777 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5778 params.count)
5779 return -EINVAL;
5780 }
5781
ee4bc9e7 5782skip_beacons:
16ef1fe2
SW		 5783 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5784 if (err)
5785 return err;
5786
5787 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
5788 return -EINVAL;
5789
ee4bc9e7 5790 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
5336fa88
SW		 5791 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO ||
5792 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC) {
ee4bc9e7
SW		 5793 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5794 &params.chandef);
5795 if (err < 0) {
5796 return err;
5797 } else if (err) {
5798 radar_detect_width = BIT(params.chandef.width);
5799 params.radar_required = true;
5800 }
16ef1fe2
SW		 5801 }
5802
5803 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5804 params.chandef.chan,
5805 CHAN_MODE_SHARED,
5806 radar_detect_width);
5807 if (err)
5808 return err;
5809
5810 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5811 params.block_tx = true;
5812
5813 return rdev_channel_switch(rdev, dev, &params);
5814}
5815
9720bb3a
JB		 5816static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5817 u32 seq, int flags,
2a519311 5818 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5819 struct wireless_dev *wdev,
5820 struct cfg80211_internal_bss *intbss)
2a519311 5821{
48ab905d 5822 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5823 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5824 void *hdr;
5825 struct nlattr *bss;
8cef2c9d 5826 bool tsf = false;
48ab905d
JB		 5827
5828 ASSERT_WDEV_LOCK(wdev);
2a519311 5829
15e47304 5830 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5831 NL80211_CMD_NEW_SCAN_RESULTS);
5832 if (!hdr)
5833 return -1;
5834
9720bb3a
JB		 5835 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5836
97990a06
JB		 5837 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5838 goto nla_put_failure;
5839 if (wdev->netdev &&
9360ffd1
DM		 5840 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5841 goto nla_put_failure;
97990a06
JB		 5842 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5843 goto nla_put_failure;
2a519311
JB		 5844
5845 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5846 if (!bss)
5847 goto nla_put_failure;
9360ffd1 5848 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5849 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5850 goto nla_put_failure;
9caf0364
JB		 5851
5852 rcu_read_lock();
5853 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5854 if (ies) {
5855 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5856 goto fail_unlock_rcu;
5857 tsf = true;
5858 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5859 ies->len, ies->data))
5860 goto fail_unlock_rcu;
9caf0364
JB		 5861 }
5862 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5863 if (ies) {
5864 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5865 goto fail_unlock_rcu;
5866 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5867 ies->len, ies->data))
5868 goto fail_unlock_rcu;
9caf0364
JB		 5869 }
5870 rcu_read_unlock();
5871
9360ffd1
DM		 5872 if (res->beacon_interval &&
5873 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5874 goto nla_put_failure;
5875 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5876 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 5877 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 5878 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5879 jiffies_to_msecs(jiffies - intbss->ts)))
5880 goto nla_put_failure;
2a519311 5881
77965c97 5882 switch (rdev->wiphy.signal_type) {
2a519311 5883 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5884 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5885 goto nla_put_failure;
2a519311
JB		 5886 break;
5887 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5888 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5889 goto nla_put_failure;
2a519311
JB		 5890 break;
5891 default:
5892 break;
5893 }
5894
48ab905d 5895 switch (wdev->iftype) {
074ac8df 5896 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5897 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5898 if (intbss == wdev->current_bss &&
5899 nla_put_u32(msg, NL80211_BSS_STATUS,
5900 NL80211_BSS_STATUS_ASSOCIATED))
5901 goto nla_put_failure;
48ab905d
JB		 5902 break;
5903 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5904 if (intbss == wdev->current_bss &&
5905 nla_put_u32(msg, NL80211_BSS_STATUS,
5906 NL80211_BSS_STATUS_IBSS_JOINED))
5907 goto nla_put_failure;
48ab905d
JB		 5908 break;
5909 default:
5910 break;
5911 }
5912
2a519311
JB		 5913 nla_nest_end(msg, bss);
5914
5915 return genlmsg_end(msg, hdr);
5916
8cef2c9d
JB		 5917 fail_unlock_rcu:
5918 rcu_read_unlock();
2a519311
JB		 5919 nla_put_failure:
5920 genlmsg_cancel(msg, hdr);
5921 return -EMSGSIZE;
5922}
5923
97990a06 5924static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5925{
48ab905d 5926 struct cfg80211_registered_device *rdev;
2a519311 5927 struct cfg80211_internal_bss *scan;
48ab905d 5928 struct wireless_dev *wdev;
97990a06 5929 int start = cb->args[2], idx = 0;
2a519311
JB		 5930 int err;
5931
97990a06 5932 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5933 if (err)
5934 return err;
2a519311 5935
48ab905d
JB		 5936 wdev_lock(wdev);
5937 spin_lock_bh(&rdev->bss_lock);
5938 cfg80211_bss_expire(rdev);
5939
9720bb3a
JB		 5940 cb->seq = rdev->bss_generation;
5941
48ab905d 5942 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5943 if (++idx <= start)
5944 continue;
9720bb3a 5945 if (nl80211_send_bss(skb, cb,
2a519311 5946 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5947 rdev, wdev, scan) < 0) {
2a519311 5948 idx--;
67748893 5949 break;
2a519311
JB		 5950 }
5951 }
5952
48ab905d
JB		 5953 spin_unlock_bh(&rdev->bss_lock);
5954 wdev_unlock(wdev);
2a519311 5955
97990a06
JB		 5956 cb->args[2] = idx;
5957 nl80211_finish_wdev_dump(rdev);
2a519311 5958
67748893 5959 return skb->len;
2a519311
JB		 5960}
5961
15e47304 5962static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5963 int flags, struct net_device *dev,
5964 struct survey_info *survey)
5965{
5966 void *hdr;
5967 struct nlattr *infoattr;
5968
15e47304 5969 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5970 NL80211_CMD_NEW_SURVEY_RESULTS);
5971 if (!hdr)
5972 return -ENOMEM;
5973
9360ffd1
DM		 5974 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5975 goto nla_put_failure;
61fa713c
HS		 5976
5977 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5978 if (!infoattr)
5979 goto nla_put_failure;
5980
9360ffd1
DM		 5981 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5982 survey->channel->center_freq))
5983 goto nla_put_failure;
5984
5985 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5986 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5987 goto nla_put_failure;
5988 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5989 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5990 goto nla_put_failure;
5991 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5992 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5993 survey->channel_time))
5994 goto nla_put_failure;
5995 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5996 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5997 survey->channel_time_busy))
5998 goto nla_put_failure;
5999 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6000 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6001 survey->channel_time_ext_busy))
6002 goto nla_put_failure;
6003 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6004 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6005 survey->channel_time_rx))
6006 goto nla_put_failure;
6007 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6008 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6009 survey->channel_time_tx))
6010 goto nla_put_failure;
61fa713c
HS		 6011
6012 nla_nest_end(msg, infoattr);
6013
6014 return genlmsg_end(msg, hdr);
6015
6016 nla_put_failure:
6017 genlmsg_cancel(msg, hdr);
6018 return -EMSGSIZE;
6019}
6020
6021static int nl80211_dump_survey(struct sk_buff *skb,
6022 struct netlink_callback *cb)
6023{
6024 struct survey_info survey;
6025 struct cfg80211_registered_device *dev;
97990a06
JB		 6026 struct wireless_dev *wdev;
6027 int survey_idx = cb->args[2];
61fa713c
HS		 6028 int res;
6029
97990a06 6030 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 6031 if (res)
6032 return res;
61fa713c 6033
97990a06
JB		 6034 if (!wdev->netdev) {
6035 res = -EINVAL;
6036 goto out_err;
6037 }
6038
61fa713c
HS		 6039 if (!dev->ops->dump_survey) {
6040 res = -EOPNOTSUPP;
6041 goto out_err;
6042 }
6043
6044 while (1) {
180cdc79
LR		 6045 struct ieee80211_channel *chan;
6046
97990a06 6047 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6048 if (res == -ENOENT)
6049 break;
6050 if (res)
6051 goto out_err;
6052
180cdc79
LR		 6053 /* Survey without a channel doesn't make sense */
6054 if (!survey.channel) {
6055 res = -EINVAL;
6056 goto out;
6057 }
6058
6059 chan = ieee80211_get_channel(&dev->wiphy,
6060 survey.channel->center_freq);
6061 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6062 survey_idx++;
6063 continue;
6064 }
6065
61fa713c 6066 if (nl80211_send_survey(skb,
15e47304 6067 NETLINK_CB(cb->skb).portid,
61fa713c 6068 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6069 wdev->netdev, &survey) < 0)
61fa713c
HS		 6070 goto out;
6071 survey_idx++;
6072 }
6073
6074 out:
97990a06 6075 cb->args[2] = survey_idx;
61fa713c
HS		 6076 res = skb->len;
6077 out_err:
97990a06 6078 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 6079 return res;
6080}
6081
b23aa676
SO		 6082static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6083{
6084 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6085 NL80211_WPA_VERSION_2));
6086}
6087
636a5d36
JM		 6088static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6089{
4c476991
JB		 6090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6091 struct net_device *dev = info->user_ptr[1];
19957bb3 6092 struct ieee80211_channel *chan;
e39e5b5e
JM		 6093 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6094 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6095 enum nl80211_auth_type auth_type;
fffd0934 6096 struct key_parse key;
d5cdfacb 6097 bool local_state_change;
636a5d36 6098
f4a11bb0
JB		 6099 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6100 return -EINVAL;
6101
6102 if (!info->attrs[NL80211_ATTR_MAC])
6103 return -EINVAL;
6104
1778092e
JM		 6105 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6106 return -EINVAL;
6107
19957bb3
JB		 6108 if (!info->attrs[NL80211_ATTR_SSID])
6109 return -EINVAL;
6110
6111 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6112 return -EINVAL;
6113
fffd0934
JB		 6114 err = nl80211_parse_key(info, &key);
6115 if (err)
6116 return err;
6117
6118 if (key.idx >= 0) {
e31b8213
JB		 6119 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6120 return -EINVAL;
fffd0934
JB		 6121 if (!key.p.key || !key.p.key_len)
6122 return -EINVAL;
6123 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6124 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6125 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6126 key.p.key_len != WLAN_KEY_LEN_WEP104))
6127 return -EINVAL;
6128 if (key.idx > 4)
6129 return -EINVAL;
6130 } else {
6131 key.p.key_len = 0;
6132 key.p.key = NULL;
6133 }
6134
afea0b7a
JB		 6135 if (key.idx >= 0) {
6136 int i;
6137 bool ok = false;
6138 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6139 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6140 ok = true;
6141 break;
6142 }
6143 }
4c476991
JB		 6144 if (!ok)
6145 return -EINVAL;
afea0b7a
JB		 6146 }
6147
4c476991
JB		 6148 if (!rdev->ops->auth)
6149 return -EOPNOTSUPP;
636a5d36 6150
074ac8df 6151 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6152 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6153 return -EOPNOTSUPP;
eec60b03 6154
19957bb3 6155 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 6156 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 6157 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6158 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6159 return -EINVAL;
636a5d36 6160
19957bb3
JB		 6161 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6162 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6163
6164 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6165 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6166 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6167 }
6168
19957bb3 6169 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6170 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6171 return -EINVAL;
636a5d36 6172
e39e5b5e
JM		 6173 if (auth_type == NL80211_AUTHTYPE_SAE &&
6174 !info->attrs[NL80211_ATTR_SAE_DATA])
6175 return -EINVAL;
6176
6177 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6178 if (auth_type != NL80211_AUTHTYPE_SAE)
6179 return -EINVAL;
6180 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6181 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6182 /* need to include at least Auth Transaction and Status Code */
6183 if (sae_data_len < 4)
6184 return -EINVAL;
6185 }
6186
d5cdfacb
JM		 6187 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6188
95de817b
JB		 6189 /*
6190 * Since we no longer track auth state, ignore
6191 * requests to only change local state.
6192 */
6193 if (local_state_change)
6194 return 0;
6195
91bf9b26
JB		 6196 wdev_lock(dev->ieee80211_ptr);
6197 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6198 ssid, ssid_len, ie, ie_len,
6199 key.p.key, key.p.key_len, key.idx,
6200 sae_data, sae_data_len);
6201 wdev_unlock(dev->ieee80211_ptr);
6202 return err;
636a5d36
JM		 6203}
6204
c0692b8f
JB		 6205static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6206 struct genl_info *info,
3dc27d25
JB		 6207 struct cfg80211_crypto_settings *settings,
6208 int cipher_limit)
b23aa676 6209{
c0b2bbd8
JB		 6210 memset(settings, 0, sizeof(*settings));
6211
b23aa676
SO		 6212 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6213
c0692b8f
JB		 6214 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6215 u16 proto;
6216 proto = nla_get_u16(
6217 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6218 settings->control_port_ethertype = cpu_to_be16(proto);
6219 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6220 proto != ETH_P_PAE)
6221 return -EINVAL;
6222 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6223 settings->control_port_no_encrypt = true;
6224 } else
6225 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6226
b23aa676
SO		 6227 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6228 void *data;
6229 int len, i;
6230
6231 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6232 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6233 settings->n_ciphers_pairwise = len / sizeof(u32);
6234
6235 if (len % sizeof(u32))
6236 return -EINVAL;
6237
3dc27d25 6238 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6239 return -EINVAL;
6240
6241 memcpy(settings->ciphers_pairwise, data, len);
6242
6243 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6244 if (!cfg80211_supported_cipher_suite(
6245 &rdev->wiphy,
b23aa676
SO		 6246 settings->ciphers_pairwise[i]))
6247 return -EINVAL;
6248 }
6249
6250 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6251 settings->cipher_group =
6252 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6253 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6254 settings->cipher_group))
b23aa676
SO		 6255 return -EINVAL;
6256 }
6257
6258 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6259 settings->wpa_versions =
6260 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6261 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6262 return -EINVAL;
6263 }
6264
6265 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6266 void *data;
6d30240e 6267 int len;
b23aa676
SO		 6268
6269 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6270 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6271 settings->n_akm_suites = len / sizeof(u32);
6272
6273 if (len % sizeof(u32))
6274 return -EINVAL;
6275
1b9ca027
JM		 6276 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6277 return -EINVAL;
6278
b23aa676 6279 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6280 }
6281
6282 return 0;
6283}
6284
636a5d36
JM		 6285static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6286{
4c476991
JB		 6287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6288 struct net_device *dev = info->user_ptr[1];
f444de05 6289 struct ieee80211_channel *chan;
f62fab73
JB		 6290 struct cfg80211_assoc_request req = {};
6291 const u8 *bssid, *ssid;
6292 int err, ssid_len = 0;
636a5d36 6293
f4a11bb0
JB		 6294 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6295 return -EINVAL;
6296
6297 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6298 !info->attrs[NL80211_ATTR_SSID] ||
6299 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6300 return -EINVAL;
6301
4c476991
JB		 6302 if (!rdev->ops->assoc)
6303 return -EOPNOTSUPP;
636a5d36 6304
074ac8df 6305 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6306 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6307 return -EOPNOTSUPP;
eec60b03 6308
19957bb3 6309 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6310
19957bb3
JB		 6311 chan = ieee80211_get_channel(&rdev->wiphy,
6312 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6313 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6314 return -EINVAL;
636a5d36 6315
19957bb3
JB		 6316 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6317 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6318
6319 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6320 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6321 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6322 }
6323
dc6382ce 6324 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6325 enum nl80211_mfp mfp =
dc6382ce 6326 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6327 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6328 req.use_mfp = true;
4c476991
JB		 6329 else if (mfp != NL80211_MFP_NO)
6330 return -EINVAL;
dc6382ce
JM		 6331 }
6332
3e5d7649 6333 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6334 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6335
7e7c8926 6336 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6337 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6338
6339 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6340 memcpy(&req.ht_capa_mask,
6341 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6342 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6343
6344 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6345 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6346 return -EINVAL;
f62fab73
JB		 6347 memcpy(&req.ht_capa,
6348 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6349 sizeof(req.ht_capa));
7e7c8926
BG		 6350 }
6351
ee2aca34 6352 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6353 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6354
6355 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6356 memcpy(&req.vht_capa_mask,
6357 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6358 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6359
6360 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6361 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6362 return -EINVAL;
f62fab73
JB		 6363 memcpy(&req.vht_capa,
6364 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6365 sizeof(req.vht_capa));
ee2aca34
JB		 6366 }
6367
f62fab73 6368 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6369 if (!err) {
6370 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6371 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6372 ssid, ssid_len, &req);
91bf9b26
JB		 6373 wdev_unlock(dev->ieee80211_ptr);
6374 }
636a5d36 6375
636a5d36
JM		 6376 return err;
6377}
6378
6379static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6380{
4c476991
JB		 6381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6382 struct net_device *dev = info->user_ptr[1];
19957bb3 6383 const u8 *ie = NULL, *bssid;
91bf9b26 6384 int ie_len = 0, err;
19957bb3 6385 u16 reason_code;
d5cdfacb 6386 bool local_state_change;
636a5d36 6387
f4a11bb0
JB		 6388 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6389 return -EINVAL;
6390
6391 if (!info->attrs[NL80211_ATTR_MAC])
6392 return -EINVAL;
6393
6394 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6395 return -EINVAL;
6396
4c476991
JB		 6397 if (!rdev->ops->deauth)
6398 return -EOPNOTSUPP;
636a5d36 6399
074ac8df 6400 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6401 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6402 return -EOPNOTSUPP;
eec60b03 6403
19957bb3 6404 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6405
19957bb3
JB		 6406 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6407 if (reason_code == 0) {
f4a11bb0 6408 /* Reason Code 0 is reserved */
4c476991 6409 return -EINVAL;
255e737e 6410 }
636a5d36
JM		 6411
6412 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6413 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6414 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6415 }
6416
d5cdfacb
JM		 6417 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6418
91bf9b26
JB		 6419 wdev_lock(dev->ieee80211_ptr);
6420 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6421 local_state_change);
6422 wdev_unlock(dev->ieee80211_ptr);
6423 return err;
636a5d36
JM		 6424}
6425
6426static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6427{
4c476991
JB		 6428 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6429 struct net_device *dev = info->user_ptr[1];
19957bb3 6430 const u8 *ie = NULL, *bssid;
91bf9b26 6431 int ie_len = 0, err;
19957bb3 6432 u16 reason_code;
d5cdfacb 6433 bool local_state_change;
636a5d36 6434
f4a11bb0
JB		 6435 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6436 return -EINVAL;
6437
6438 if (!info->attrs[NL80211_ATTR_MAC])
6439 return -EINVAL;
6440
6441 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6442 return -EINVAL;
6443
4c476991
JB		 6444 if (!rdev->ops->disassoc)
6445 return -EOPNOTSUPP;
636a5d36 6446
074ac8df 6447 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6448 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6449 return -EOPNOTSUPP;
eec60b03 6450
19957bb3 6451 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6452
19957bb3
JB		 6453 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6454 if (reason_code == 0) {
f4a11bb0 6455 /* Reason Code 0 is reserved */
4c476991 6456 return -EINVAL;
255e737e 6457 }
636a5d36
JM		 6458
6459 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6460 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6461 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6462 }
6463
d5cdfacb
JM		 6464 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6465
91bf9b26
JB		 6466 wdev_lock(dev->ieee80211_ptr);
6467 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6468 local_state_change);
6469 wdev_unlock(dev->ieee80211_ptr);
6470 return err;
636a5d36
JM		 6471}
6472
dd5b4cc7
FF		 6473static bool
6474nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6475 int mcast_rate[IEEE80211_NUM_BANDS],
6476 int rateval)
6477{
6478 struct wiphy *wiphy = &rdev->wiphy;
6479 bool found = false;
6480 int band, i;
6481
6482 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6483 struct ieee80211_supported_band *sband;
6484
6485 sband = wiphy->bands[band];
6486 if (!sband)
6487 continue;
6488
6489 for (i = 0; i < sband->n_bitrates; i++) {
6490 if (sband->bitrates[i].bitrate == rateval) {
6491 mcast_rate[band] = i + 1;
6492 found = true;
6493 break;
6494 }
6495 }
6496 }
6497
6498 return found;
6499}
6500
04a773ad
JB		 6501static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6502{
4c476991
JB		 6503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6504 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6505 struct cfg80211_ibss_params ibss;
6506 struct wiphy *wiphy;
fffd0934 6507 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6508 int err;
6509
8e30bc55
JB		 6510 memset(&ibss, 0, sizeof(ibss));
6511
04a773ad
JB		 6512 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6513 return -EINVAL;
6514
683b6d3b 6515 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6516 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6517 return -EINVAL;
6518
8e30bc55
JB		 6519 ibss.beacon_interval = 100;
6520
6521 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6522 ibss.beacon_interval =
6523 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6524 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6525 return -EINVAL;
6526 }
6527
4c476991
JB		 6528 if (!rdev->ops->join_ibss)
6529 return -EOPNOTSUPP;
04a773ad 6530
4c476991
JB		 6531 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6532 return -EOPNOTSUPP;
04a773ad 6533
79c97e97 6534 wiphy = &rdev->wiphy;
04a773ad 6535
39193498 6536 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6537 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6538
6539 if (!is_valid_ether_addr(ibss.bssid))
6540 return -EINVAL;
6541 }
04a773ad
JB		 6542 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6543 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6544
6545 if (info->attrs[NL80211_ATTR_IE]) {
6546 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6547 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6548 }
6549
683b6d3b
JB		 6550 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6551 if (err)
6552 return err;
04a773ad 6553
683b6d3b 6554 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6555 return -EINVAL;
6556
2f301ab2 6557 switch (ibss.chandef.width) {
bf372645
SW		 6558 case NL80211_CHAN_WIDTH_5:
6559 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6560 case NL80211_CHAN_WIDTH_20_NOHT:
6561 break;
6562 case NL80211_CHAN_WIDTH_20:
6563 case NL80211_CHAN_WIDTH_40:
6564 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6565 break;
6566 default:
c04d6150 6567 return -EINVAL;
2f301ab2 6568 }
db9c64cf 6569
04a773ad 6570 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6571 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6572
fbd2c8dc
TP		 6573 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6574 u8 *rates =
6575 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6576 int n_rates =
6577 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6578 struct ieee80211_supported_band *sband =
683b6d3b 6579 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6580
34850ab2
JB		 6581 err = ieee80211_get_ratemask(sband, rates, n_rates,
6582 &ibss.basic_rates);
6583 if (err)
6584 return err;
fbd2c8dc 6585 }
dd5b4cc7 6586
803768f5
SW		 6587 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6588 memcpy(&ibss.ht_capa_mask,
6589 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6590 sizeof(ibss.ht_capa_mask));
6591
6592 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6593 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6594 return -EINVAL;
6595 memcpy(&ibss.ht_capa,
6596 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6597 sizeof(ibss.ht_capa));
6598 }
6599
dd5b4cc7
FF		 6600 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6601 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6602 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6603 return -EINVAL;
fbd2c8dc 6604
4c476991 6605 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6606 bool no_ht = false;
6607
4c476991 6608 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6609 info->attrs[NL80211_ATTR_KEYS],
6610 &no_ht);
4c476991
JB		 6611 if (IS_ERR(connkeys))
6612 return PTR_ERR(connkeys);
de7044ee 6613
3d9d1d66
JB		 6614 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6615 no_ht) {
de7044ee
SM		 6616 kfree(connkeys);
6617 return -EINVAL;
6618 }
4c476991 6619 }
04a773ad 6620
267335d6
AQ		 6621 ibss.control_port =
6622 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6623
5336fa88
SW		 6624 ibss.userspace_handles_dfs =
6625 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6626
4c476991 6627 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6628 if (err)
6629 kfree(connkeys);
04a773ad
JB		 6630 return err;
6631}
6632
6633static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6634{
4c476991
JB		 6635 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6636 struct net_device *dev = info->user_ptr[1];
04a773ad 6637
4c476991
JB		 6638 if (!rdev->ops->leave_ibss)
6639 return -EOPNOTSUPP;
04a773ad 6640
4c476991
JB		 6641 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6642 return -EOPNOTSUPP;
04a773ad 6643
4c476991 6644 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6645}
6646
f4e583c8
AQ		 6647static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6648{
6649 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6650 struct net_device *dev = info->user_ptr[1];
6651 int mcast_rate[IEEE80211_NUM_BANDS];
6652 u32 nla_rate;
6653 int err;
6654
6655 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6656 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6657 return -EOPNOTSUPP;
6658
6659 if (!rdev->ops->set_mcast_rate)
6660 return -EOPNOTSUPP;
6661
6662 memset(mcast_rate, 0, sizeof(mcast_rate));
6663
6664 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6665 return -EINVAL;
6666
6667 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6668 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6669 return -EINVAL;
6670
6671 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6672
6673 return err;
6674}
6675
6676
aff89a9b 6677#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6678static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6679{
4c476991 6680 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6681 struct wireless_dev *wdev =
6682 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6683 int err;
6684
fc73f11f
DS		 6685 if (!rdev->ops->testmode_cmd)
6686 return -EOPNOTSUPP;
6687
6688 if (IS_ERR(wdev)) {
6689 err = PTR_ERR(wdev);
6690 if (err != -EINVAL)
6691 return err;
6692 wdev = NULL;
6693 } else if (wdev->wiphy != &rdev->wiphy) {
6694 return -EINVAL;
6695 }
6696
aff89a9b
JB		 6697 if (!info->attrs[NL80211_ATTR_TESTDATA])
6698 return -EINVAL;
6699
fc73f11f
DS		 6700 rdev->testmode_info = info;
6701 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 6702 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6703 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
fc73f11f 6704 rdev->testmode_info = NULL;
aff89a9b 6705
aff89a9b
JB		 6706 return err;
6707}
6708
71063f0e
WYG		 6709static int nl80211_testmode_dump(struct sk_buff *skb,
6710 struct netlink_callback *cb)
6711{
00918d33 6712 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6713 int err;
6714 long phy_idx;
6715 void *data = NULL;
6716 int data_len = 0;
6717
5fe231e8
JB		 6718 rtnl_lock();
6719
71063f0e
WYG		 6720 if (cb->args[0]) {
6721 /*
6722 * 0 is a valid index, but not valid for args[0],
6723 * so we need to offset by 1.
6724 */
6725 phy_idx = cb->args[0] - 1;
6726 } else {
6727 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6728 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6729 nl80211_policy);
6730 if (err)
5fe231e8 6731 goto out_err;
00918d33 6732
2bd7e35d
JB		 6733 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6734 nl80211_fam.attrbuf);
6735 if (IS_ERR(rdev)) {
5fe231e8
JB		 6736 err = PTR_ERR(rdev);
6737 goto out_err;
00918d33 6738 }
2bd7e35d
JB		 6739 phy_idx = rdev->wiphy_idx;
6740 rdev = NULL;
2bd7e35d 6741
71063f0e
WYG		 6742 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6743 cb->args[1] =
6744 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6745 }
6746
6747 if (cb->args[1]) {
6748 data = nla_data((void *)cb->args[1]);
6749 data_len = nla_len((void *)cb->args[1]);
6750 }
6751
00918d33
JB		 6752 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6753 if (!rdev) {
5fe231e8
JB		 6754 err = -ENOENT;
6755 goto out_err;
71063f0e 6756 }
71063f0e 6757
00918d33 6758 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6759 err = -EOPNOTSUPP;
6760 goto out_err;
6761 }
6762
6763 while (1) {
15e47304 6764 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6765 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6766 NL80211_CMD_TESTMODE);
6767 struct nlattr *tmdata;
6768
cb35fba3
DC		 6769 if (!hdr)
6770 break;
6771
9360ffd1 6772 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6773 genlmsg_cancel(skb, hdr);
6774 break;
6775 }
6776
6777 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6778 if (!tmdata) {
6779 genlmsg_cancel(skb, hdr);
6780 break;
6781 }
e35e4d28 6782 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6783 nla_nest_end(skb, tmdata);
6784
6785 if (err == -ENOBUFS || err == -ENOENT) {
6786 genlmsg_cancel(skb, hdr);
6787 break;
6788 } else if (err) {
6789 genlmsg_cancel(skb, hdr);
6790 goto out_err;
6791 }
6792
6793 genlmsg_end(skb, hdr);
6794 }
6795
6796 err = skb->len;
6797 /* see above */
6798 cb->args[0] = phy_idx + 1;
6799 out_err:
5fe231e8 6800 rtnl_unlock();
71063f0e
WYG		 6801 return err;
6802}
6803
aff89a9b
JB		 6804static struct sk_buff *
6805__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6806 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6807{
6808 struct sk_buff *skb;
6809 void *hdr;
6810 struct nlattr *data;
6811
6812 skb = nlmsg_new(approxlen + 100, gfp);
6813 if (!skb)
6814 return NULL;
6815
15e47304 6816 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6817 if (!hdr) {
6818 kfree_skb(skb);
6819 return NULL;
6820 }
6821
9360ffd1
DM		 6822 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6823 goto nla_put_failure;
aff89a9b
JB		 6824 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6825
6826 ((void **)skb->cb)[0] = rdev;
6827 ((void **)skb->cb)[1] = hdr;
6828 ((void **)skb->cb)[2] = data;
6829
6830 return skb;
6831
6832 nla_put_failure:
6833 kfree_skb(skb);
6834 return NULL;
6835}
6836
6837struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6838 int approxlen)
6839{
6840 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6841
6842 if (WARN_ON(!rdev->testmode_info))
6843 return NULL;
6844
6845 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6846 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6847 rdev->testmode_info->snd_seq,
6848 GFP_KERNEL);
6849}
6850EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6851
6852int cfg80211_testmode_reply(struct sk_buff *skb)
6853{
6854 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6855 void *hdr = ((void **)skb->cb)[1];
6856 struct nlattr *data = ((void **)skb->cb)[2];
6857
6858 if (WARN_ON(!rdev->testmode_info)) {
6859 kfree_skb(skb);
6860 return -EINVAL;
6861 }
6862
6863 nla_nest_end(skb, data);
6864 genlmsg_end(skb, hdr);
6865 return genlmsg_reply(skb, rdev->testmode_info);
6866}
6867EXPORT_SYMBOL(cfg80211_testmode_reply);
6868
6869struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6870 int approxlen, gfp_t gfp)
6871{
6872 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6873
6874 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6875}
6876EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6877
6878void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6879{
a0ec570f 6880 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
aff89a9b
JB		 6881 void *hdr = ((void **)skb->cb)[1];
6882 struct nlattr *data = ((void **)skb->cb)[2];
6883
6884 nla_nest_end(skb, data);
6885 genlmsg_end(skb, hdr);
68eb5503 6886 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
2a94fe48 6887 NL80211_MCGRP_TESTMODE, gfp);
aff89a9b
JB		 6888}
6889EXPORT_SYMBOL(cfg80211_testmode_event);
6890#endif
6891
b23aa676
SO		 6892static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6893{
4c476991
JB		 6894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6895 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6896 struct cfg80211_connect_params connect;
6897 struct wiphy *wiphy;
fffd0934 6898 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6899 int err;
6900
6901 memset(&connect, 0, sizeof(connect));
6902
6903 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6904 return -EINVAL;
6905
6906 if (!info->attrs[NL80211_ATTR_SSID] ||
6907 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6908 return -EINVAL;
6909
6910 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6911 connect.auth_type =
6912 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6913 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6914 NL80211_CMD_CONNECT))
b23aa676
SO		 6915 return -EINVAL;
6916 } else
6917 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6918
6919 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6920
c0692b8f 6921 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6922 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6923 if (err)
6924 return err;
b23aa676 6925
074ac8df 6926 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6927 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6928 return -EOPNOTSUPP;
b23aa676 6929
79c97e97 6930 wiphy = &rdev->wiphy;
b23aa676 6931
4486ea98
BS		 6932 connect.bg_scan_period = -1;
6933 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6934 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6935 connect.bg_scan_period =
6936 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6937 }
6938
b23aa676
SO		 6939 if (info->attrs[NL80211_ATTR_MAC])
6940 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6941 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6942 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6943
6944 if (info->attrs[NL80211_ATTR_IE]) {
6945 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6946 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6947 }
6948
cee00a95
JM		 6949 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6950 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6951 if (connect.mfp != NL80211_MFP_REQUIRED &&
6952 connect.mfp != NL80211_MFP_NO)
6953 return -EINVAL;
6954 } else {
6955 connect.mfp = NL80211_MFP_NO;
6956 }
6957
b23aa676
SO		 6958 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6959 connect.channel =
6960 ieee80211_get_channel(wiphy,
6961 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6962 if (!connect.channel ||
4c476991
JB		 6963 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6964 return -EINVAL;
b23aa676
SO		 6965 }
6966
fffd0934
JB		 6967 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6968 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6969 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6970 if (IS_ERR(connkeys))
6971 return PTR_ERR(connkeys);
fffd0934
JB		 6972 }
6973
7e7c8926
BG		 6974 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6975 connect.flags |= ASSOC_REQ_DISABLE_HT;
6976
6977 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6978 memcpy(&connect.ht_capa_mask,
6979 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6980 sizeof(connect.ht_capa_mask));
6981
6982 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6983 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6984 kfree(connkeys);
7e7c8926 6985 return -EINVAL;
b4e4f47e 6986 }
7e7c8926
BG		 6987 memcpy(&connect.ht_capa,
6988 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6989 sizeof(connect.ht_capa));
6990 }
6991
ee2aca34
JB		 6992 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6993 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6994
6995 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6996 memcpy(&connect.vht_capa_mask,
6997 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6998 sizeof(connect.vht_capa_mask));
6999
7000 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7001 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7002 kfree(connkeys);
7003 return -EINVAL;
7004 }
7005 memcpy(&connect.vht_capa,
7006 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7007 sizeof(connect.vht_capa));
7008 }
7009
83739b03
JB		 7010 wdev_lock(dev->ieee80211_ptr);
7011 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7012 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7013 if (err)
7014 kfree(connkeys);
b23aa676
SO		 7015 return err;
7016}
7017
7018static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7019{
4c476991
JB		 7020 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7021 struct net_device *dev = info->user_ptr[1];
b23aa676 7022 u16 reason;
83739b03 7023 int ret;
b23aa676
SO		 7024
7025 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7026 reason = WLAN_REASON_DEAUTH_LEAVING;
7027 else
7028 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7029
7030 if (reason == 0)
7031 return -EINVAL;
7032
074ac8df 7033 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7034 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7035 return -EOPNOTSUPP;
b23aa676 7036
83739b03
JB		 7037 wdev_lock(dev->ieee80211_ptr);
7038 ret = cfg80211_disconnect(rdev, dev, reason, true);
7039 wdev_unlock(dev->ieee80211_ptr);
7040 return ret;
b23aa676
SO		 7041}
7042
463d0183
JB		 7043static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7044{
4c476991 7045 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7046 struct net *net;
7047 int err;
7048 u32 pid;
7049
7050 if (!info->attrs[NL80211_ATTR_PID])
7051 return -EINVAL;
7052
7053 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7054
463d0183 7055 net = get_net_ns_by_pid(pid);
4c476991
JB		 7056 if (IS_ERR(net))
7057 return PTR_ERR(net);
463d0183
JB		 7058
7059 err = 0;
7060
7061 /* check if anything to do */
4c476991
JB		 7062 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7063 err = cfg80211_switch_netns(rdev, net);
463d0183 7064
463d0183 7065 put_net(net);
463d0183
JB		 7066 return err;
7067}
7068
67fbb16b
SO		 7069static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7070{
4c476991 7071 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7072 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7073 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7074 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7075 struct cfg80211_pmksa pmksa;
7076
7077 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7078
7079 if (!info->attrs[NL80211_ATTR_MAC])
7080 return -EINVAL;
7081
7082 if (!info->attrs[NL80211_ATTR_PMKID])
7083 return -EINVAL;
7084
67fbb16b
SO		 7085 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7086 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7087
074ac8df 7088 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7089 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7090 return -EOPNOTSUPP;
67fbb16b
SO		 7091
7092 switch (info->genlhdr->cmd) {
7093 case NL80211_CMD_SET_PMKSA:
7094 rdev_ops = rdev->ops->set_pmksa;
7095 break;
7096 case NL80211_CMD_DEL_PMKSA:
7097 rdev_ops = rdev->ops->del_pmksa;
7098 break;
7099 default:
7100 WARN_ON(1);
7101 break;
7102 }
7103
4c476991
JB		 7104 if (!rdev_ops)
7105 return -EOPNOTSUPP;
67fbb16b 7106
4c476991 7107 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7108}
7109
7110static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7111{
4c476991
JB		 7112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7113 struct net_device *dev = info->user_ptr[1];
67fbb16b 7114
074ac8df 7115 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7116 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7117 return -EOPNOTSUPP;
67fbb16b 7118
4c476991
JB		 7119 if (!rdev->ops->flush_pmksa)
7120 return -EOPNOTSUPP;
67fbb16b 7121
e35e4d28 7122 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7123}
7124
109086ce
AN		 7125static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7126{
7127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7128 struct net_device *dev = info->user_ptr[1];
7129 u8 action_code, dialog_token;
7130 u16 status_code;
7131 u8 *peer;
7132
7133 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7134 !rdev->ops->tdls_mgmt)
7135 return -EOPNOTSUPP;
7136
7137 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7138 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7139 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7140 !info->attrs[NL80211_ATTR_IE] ||
7141 !info->attrs[NL80211_ATTR_MAC])
7142 return -EINVAL;
7143
7144 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7145 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7146 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7147 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7148
e35e4d28
HG		 7149 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7150 dialog_token, status_code,
7151 nla_data(info->attrs[NL80211_ATTR_IE]),
7152 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7153}
7154
7155static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7156{
7157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7158 struct net_device *dev = info->user_ptr[1];
7159 enum nl80211_tdls_operation operation;
7160 u8 *peer;
7161
7162 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7163 !rdev->ops->tdls_oper)
7164 return -EOPNOTSUPP;
7165
7166 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7167 !info->attrs[NL80211_ATTR_MAC])
7168 return -EINVAL;
7169
7170 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7171 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7172
e35e4d28 7173 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7174}
7175
9588bbd5
JM		 7176static int nl80211_remain_on_channel(struct sk_buff *skb,
7177 struct genl_info *info)
7178{
4c476991 7179 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7180 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7181 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7182 struct sk_buff *msg;
7183 void *hdr;
7184 u64 cookie;
683b6d3b 7185 u32 duration;
9588bbd5
JM		 7186 int err;
7187
7188 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7189 !info->attrs[NL80211_ATTR_DURATION])
7190 return -EINVAL;
7191
7192 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7193
ebf348fc
JB		 7194 if (!rdev->ops->remain_on_channel ||
7195 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7196 return -EOPNOTSUPP;
7197
9588bbd5 7198 /*
ebf348fc
JB		 7199 * We should be on that channel for at least a minimum amount of
7200 * time (10ms) but no longer than the driver supports.
9588bbd5 7201 */
ebf348fc 7202 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7203 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7204 return -EINVAL;
7205
683b6d3b
JB		 7206 err = nl80211_parse_chandef(rdev, info, &chandef);
7207 if (err)
7208 return err;
9588bbd5
JM		 7209
7210 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7211 if (!msg)
7212 return -ENOMEM;
9588bbd5 7213
15e47304 7214 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7215 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7216 if (!hdr) {
7217 err = -ENOBUFS;
9588bbd5
JM		 7218 goto free_msg;
7219 }
7220
683b6d3b
JB		 7221 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7222 duration, &cookie);
9588bbd5
JM		 7223
7224 if (err)
7225 goto free_msg;
7226
9360ffd1
DM		 7227 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7228 goto nla_put_failure;
9588bbd5
JM		 7229
7230 genlmsg_end(msg, hdr);
4c476991
JB		 7231
7232 return genlmsg_reply(msg, info);
9588bbd5
JM		 7233
7234 nla_put_failure:
7235 err = -ENOBUFS;
7236 free_msg:
7237 nlmsg_free(msg);
9588bbd5
JM		 7238 return err;
7239}
7240
7241static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7242 struct genl_info *info)
7243{
4c476991 7244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7245 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7246 u64 cookie;
9588bbd5
JM		 7247
7248 if (!info->attrs[NL80211_ATTR_COOKIE])
7249 return -EINVAL;
7250
4c476991
JB		 7251 if (!rdev->ops->cancel_remain_on_channel)
7252 return -EOPNOTSUPP;
9588bbd5 7253
9588bbd5
JM		 7254 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7255
e35e4d28 7256 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7257}
7258
13ae75b1
JM		 7259static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7260 u8 *rates, u8 rates_len)
7261{
7262 u8 i;
7263 u32 mask = 0;
7264
7265 for (i = 0; i < rates_len; i++) {
7266 int rate = (rates[i] & 0x7f) * 5;
7267 int ridx;
7268 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7269 struct ieee80211_rate *srate =
7270 &sband->bitrates[ridx];
7271 if (rate == srate->bitrate) {
7272 mask |= 1 << ridx;
7273 break;
7274 }
7275 }
7276 if (ridx == sband->n_bitrates)
7277 return 0; /* rate not found */
7278 }
7279
7280 return mask;
7281}
7282
24db78c0
SW		 7283static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7284 u8 *rates, u8 rates_len,
7285 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7286{
7287 u8 i;
7288
7289 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7290
7291 for (i = 0; i < rates_len; i++) {
7292 int ridx, rbit;
7293
7294 ridx = rates[i] / 8;
7295 rbit = BIT(rates[i] % 8);
7296
7297 /* check validity */
910570b5 7298 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7299 return false;
7300
7301 /* check availability */
7302 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7303 mcs[ridx] |= rbit;
7304 else
7305 return false;
7306 }
7307
7308 return true;
7309}
7310
b54452b0 7311static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7312 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7313 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 7314 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7315 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 7316};
7317
7318static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7319 struct genl_info *info)
7320{
7321 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7323 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7324 int rem, i;
7325 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7326 struct nlattr *tx_rates;
7327 struct ieee80211_supported_band *sband;
7328
7329 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7330 return -EINVAL;
7331
4c476991
JB		 7332 if (!rdev->ops->set_bitrate_mask)
7333 return -EOPNOTSUPP;
13ae75b1
JM		 7334
7335 memset(&mask, 0, sizeof(mask));
7336 /* Default to all rates enabled */
7337 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7338 sband = rdev->wiphy.bands[i];
7339 mask.control[i].legacy =
7340 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 7341 if (sband)
7342 memcpy(mask.control[i].mcs,
7343 sband->ht_cap.mcs.rx_mask,
7344 sizeof(mask.control[i].mcs));
7345 else
7346 memset(mask.control[i].mcs, 0,
7347 sizeof(mask.control[i].mcs));
13ae75b1
JM		 7348 }
7349
7350 /*
7351 * The nested attribute uses enum nl80211_band as the index. This maps
7352 * directly to the enum ieee80211_band values used in cfg80211.
7353 */
24db78c0 7354 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7355 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7356 {
7357 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7358 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7359 return -EINVAL;
13ae75b1 7360 sband = rdev->wiphy.bands[band];
4c476991
JB		 7361 if (sband == NULL)
7362 return -EINVAL;
13ae75b1
JM		 7363 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7364 nla_len(tx_rates), nl80211_txattr_policy);
7365 if (tb[NL80211_TXRATE_LEGACY]) {
7366 mask.control[band].legacy = rateset_to_mask(
7367 sband,
7368 nla_data(tb[NL80211_TXRATE_LEGACY]),
7369 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7370 if ((mask.control[band].legacy == 0) &&
7371 nla_len(tb[NL80211_TXRATE_LEGACY]))
7372 return -EINVAL;
24db78c0
SW		 7373 }
7374 if (tb[NL80211_TXRATE_MCS]) {
7375 if (!ht_rateset_to_mask(
7376 sband,
7377 nla_data(tb[NL80211_TXRATE_MCS]),
7378 nla_len(tb[NL80211_TXRATE_MCS]),
7379 mask.control[band].mcs))
7380 return -EINVAL;
7381 }
7382
7383 if (mask.control[band].legacy == 0) {
7384 /* don't allow empty legacy rates if HT
7385 * is not even supported. */
7386 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7387 return -EINVAL;
7388
7389 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7390 if (mask.control[band].mcs[i])
7391 break;
7392
7393 /* legacy and mcs rates may not be both empty */
7394 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7395 return -EINVAL;
13ae75b1
JM		 7396 }
7397 }
7398
e35e4d28 7399 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7400}
7401
2e161f78 7402static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7403{
4c476991 7404 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7405 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7406 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7407
7408 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7409 return -EINVAL;
7410
2e161f78
JB		 7411 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7412 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7413
71bbc994
JB		 7414 switch (wdev->iftype) {
7415 case NL80211_IFTYPE_STATION:
7416 case NL80211_IFTYPE_ADHOC:
7417 case NL80211_IFTYPE_P2P_CLIENT:
7418 case NL80211_IFTYPE_AP:
7419 case NL80211_IFTYPE_AP_VLAN:
7420 case NL80211_IFTYPE_MESH_POINT:
7421 case NL80211_IFTYPE_P2P_GO:
98104fde 7422 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7423 break;
7424 default:
4c476991 7425 return -EOPNOTSUPP;
71bbc994 7426 }
026331c4
JM		 7427
7428 /* not much point in registering if we can't reply */
4c476991
JB		 7429 if (!rdev->ops->mgmt_tx)
7430 return -EOPNOTSUPP;
026331c4 7431
15e47304 7432 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7433 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7434 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7435}
7436
2e161f78 7437static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7438{
4c476991 7439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7440 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7441 struct cfg80211_chan_def chandef;
026331c4 7442 int err;
d64d373f 7443 void *hdr = NULL;
026331c4 7444 u64 cookie;
e247bd90 7445 struct sk_buff *msg = NULL;
f7ca38df 7446 unsigned int wait = 0;
e247bd90
JB		 7447 bool offchan, no_cck, dont_wait_for_ack;
7448
7449 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 7450
683b6d3b 7451 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7452 return -EINVAL;
7453
4c476991
JB		 7454 if (!rdev->ops->mgmt_tx)
7455 return -EOPNOTSUPP;
026331c4 7456
71bbc994 7457 switch (wdev->iftype) {
ea141b75
AQ		 7458 case NL80211_IFTYPE_P2P_DEVICE:
7459 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7460 return -EINVAL;
71bbc994
JB		 7461 case NL80211_IFTYPE_STATION:
7462 case NL80211_IFTYPE_ADHOC:
7463 case NL80211_IFTYPE_P2P_CLIENT:
7464 case NL80211_IFTYPE_AP:
7465 case NL80211_IFTYPE_AP_VLAN:
7466 case NL80211_IFTYPE_MESH_POINT:
7467 case NL80211_IFTYPE_P2P_GO:
7468 break;
7469 default:
4c476991 7470 return -EOPNOTSUPP;
71bbc994 7471 }
026331c4 7472
f7ca38df 7473 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7474 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 7475 return -EINVAL;
7476 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7477
7478 /*
7479 * We should wait on the channel for at least a minimum amount
7480 * of time (10ms) but no longer than the driver supports.
7481 */
7482 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7483 wait > rdev->wiphy.max_remain_on_channel_duration)
7484 return -EINVAL;
7485
f7ca38df
JB		 7486 }
7487
f7ca38df
JB		 7488 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7489
7c4ef712
JB		 7490 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7491 return -EINVAL;
7492
e9f935e3
RM		 7493 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7494
ea141b75
AQ		 7495 /* get the channel if any has been specified, otherwise pass NULL to
7496 * the driver. The latter will use the current one
7497 */
7498 chandef.chan = NULL;
7499 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7500 err = nl80211_parse_chandef(rdev, info, &chandef);
7501 if (err)
7502 return err;
7503 }
7504
7505 if (!chandef.chan && offchan)
7506 return -EINVAL;
026331c4 7507
e247bd90
JB		 7508 if (!dont_wait_for_ack) {
7509 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7510 if (!msg)
7511 return -ENOMEM;
026331c4 7512
15e47304 7513 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7514 NL80211_CMD_FRAME);
cb35fba3
DC		 7515 if (!hdr) {
7516 err = -ENOBUFS;
e247bd90
JB		 7517 goto free_msg;
7518 }
026331c4 7519 }
e247bd90 7520
683b6d3b 7521 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 7522 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7523 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 7524 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 7525 if (err)
7526 goto free_msg;
7527
e247bd90 7528 if (msg) {
9360ffd1
DM		 7529 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7530 goto nla_put_failure;
026331c4 7531
e247bd90
JB		 7532 genlmsg_end(msg, hdr);
7533 return genlmsg_reply(msg, info);
7534 }
7535
7536 return 0;
026331c4
JM		 7537
7538 nla_put_failure:
7539 err = -ENOBUFS;
7540 free_msg:
7541 nlmsg_free(msg);
026331c4
JM		 7542 return err;
7543}
7544
f7ca38df
JB		 7545static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7546{
7547 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7548 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7549 u64 cookie;
7550
7551 if (!info->attrs[NL80211_ATTR_COOKIE])
7552 return -EINVAL;
7553
7554 if (!rdev->ops->mgmt_tx_cancel_wait)
7555 return -EOPNOTSUPP;
7556
71bbc994
JB		 7557 switch (wdev->iftype) {
7558 case NL80211_IFTYPE_STATION:
7559 case NL80211_IFTYPE_ADHOC:
7560 case NL80211_IFTYPE_P2P_CLIENT:
7561 case NL80211_IFTYPE_AP:
7562 case NL80211_IFTYPE_AP_VLAN:
7563 case NL80211_IFTYPE_P2P_GO:
98104fde 7564 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7565 break;
7566 default:
f7ca38df 7567 return -EOPNOTSUPP;
71bbc994 7568 }
f7ca38df
JB		 7569
7570 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7571
e35e4d28 7572 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7573}
7574
ffb9eb3d
KV		 7575static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7576{
4c476991 7577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7578 struct wireless_dev *wdev;
4c476991 7579 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7580 u8 ps_state;
7581 bool state;
7582 int err;
7583
4c476991
JB		 7584 if (!info->attrs[NL80211_ATTR_PS_STATE])
7585 return -EINVAL;
ffb9eb3d
KV		 7586
7587 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7588
4c476991
JB		 7589 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7590 return -EINVAL;
ffb9eb3d
KV		 7591
7592 wdev = dev->ieee80211_ptr;
7593
4c476991
JB		 7594 if (!rdev->ops->set_power_mgmt)
7595 return -EOPNOTSUPP;
ffb9eb3d
KV		 7596
7597 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7598
7599 if (state == wdev->ps)
4c476991 7600 return 0;
ffb9eb3d 7601
e35e4d28 7602 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7603 if (!err)
7604 wdev->ps = state;
ffb9eb3d
KV		 7605 return err;
7606}
7607
7608static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7609{
4c476991 7610 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7611 enum nl80211_ps_state ps_state;
7612 struct wireless_dev *wdev;
4c476991 7613 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7614 struct sk_buff *msg;
7615 void *hdr;
7616 int err;
7617
ffb9eb3d
KV		 7618 wdev = dev->ieee80211_ptr;
7619
4c476991
JB		 7620 if (!rdev->ops->set_power_mgmt)
7621 return -EOPNOTSUPP;
ffb9eb3d
KV		 7622
7623 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7624 if (!msg)
7625 return -ENOMEM;
ffb9eb3d 7626
15e47304 7627 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7628 NL80211_CMD_GET_POWER_SAVE);
7629 if (!hdr) {
4c476991 7630 err = -ENOBUFS;
ffb9eb3d
KV		 7631 goto free_msg;
7632 }
7633
7634 if (wdev->ps)
7635 ps_state = NL80211_PS_ENABLED;
7636 else
7637 ps_state = NL80211_PS_DISABLED;
7638
9360ffd1
DM		 7639 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7640 goto nla_put_failure;
ffb9eb3d
KV		 7641
7642 genlmsg_end(msg, hdr);
4c476991 7643 return genlmsg_reply(msg, info);
ffb9eb3d 7644
4c476991 7645 nla_put_failure:
ffb9eb3d 7646 err = -ENOBUFS;
4c476991 7647 free_msg:
ffb9eb3d 7648 nlmsg_free(msg);
ffb9eb3d
KV		 7649 return err;
7650}
7651
d6dc1a38
JO		 7652static struct nla_policy
7653nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7654 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7655 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7656 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7657 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7658 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7659 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7660};
7661
84f10708 7662static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7663 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7664{
7665 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 7666 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7667 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 7668
d9d8b019 7669 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7670 return -EINVAL;
7671
84f10708
TP		 7672 if (!rdev->ops->set_cqm_txe_config)
7673 return -EOPNOTSUPP;
7674
7675 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7676 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7677 return -EOPNOTSUPP;
7678
e35e4d28 7679 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7680}
7681
d6dc1a38
JO		 7682static int nl80211_set_cqm_rssi(struct genl_info *info,
7683 s32 threshold, u32 hysteresis)
7684{
4c476991 7685 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 7686 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7687 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 7688
7689 if (threshold > 0)
7690 return -EINVAL;
7691
1da5fcc8
JB		 7692 /* disabling - hysteresis should also be zero then */
7693 if (threshold == 0)
7694 hysteresis = 0;
d6dc1a38 7695
4c476991
JB		 7696 if (!rdev->ops->set_cqm_rssi_config)
7697 return -EOPNOTSUPP;
d6dc1a38 7698
074ac8df 7699 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7700 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7701 return -EOPNOTSUPP;
d6dc1a38 7702
e35e4d28 7703 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7704}
7705
7706static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7707{
7708 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7709 struct nlattr *cqm;
7710 int err;
7711
7712 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 7713 if (!cqm)
7714 return -EINVAL;
d6dc1a38
JO		 7715
7716 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7717 nl80211_attr_cqm_policy);
7718 if (err)
1da5fcc8 7719 return err;
d6dc1a38
JO		 7720
7721 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7722 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 7723 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7724 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 7725
1da5fcc8
JB		 7726 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
7727 }
7728
7729 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7730 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7731 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7732 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7733 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7734 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7735
7736 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
7737 }
7738
7739 return -EINVAL;
d6dc1a38
JO		 7740}
7741
29cbe68c
JB		 7742static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7743{
7744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7745 struct net_device *dev = info->user_ptr[1];
7746 struct mesh_config cfg;
c80d545d 7747 struct mesh_setup setup;
29cbe68c
JB		 7748 int err;
7749
7750 /* start with default */
7751 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7752 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7753
24bdd9f4 7754 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7755 /* and parse parameters if given */
24bdd9f4 7756 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7757 if (err)
7758 return err;
7759 }
7760
7761 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7762 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7763 return -EINVAL;
7764
c80d545d
JC		 7765 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7766 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7767
4bb62344
CYY		 7768 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7769 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7770 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7771 return -EINVAL;
7772
9bdbf04d
MP		 7773 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7774 setup.beacon_interval =
7775 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7776 if (setup.beacon_interval < 10 ||
7777 setup.beacon_interval > 10000)
7778 return -EINVAL;
7779 }
7780
7781 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7782 setup.dtim_period =
7783 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7784 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7785 return -EINVAL;
7786 }
7787
c80d545d
JC		 7788 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7789 /* parse additional setup parameters if given */
7790 err = nl80211_parse_mesh_setup(info, &setup);
7791 if (err)
7792 return err;
7793 }
7794
d37bb18a
TP		 7795 if (setup.user_mpm)
7796 cfg.auto_open_plinks = false;
7797
cc1d2806 7798 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7799 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7800 if (err)
7801 return err;
cc1d2806
JB		 7802 } else {
7803 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7804 setup.chandef.chan = NULL;
cc1d2806
JB		 7805 }
7806
ffb3cf30
AN		 7807 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7808 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7809 int n_rates =
7810 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7811 struct ieee80211_supported_band *sband;
7812
7813 if (!setup.chandef.chan)
7814 return -EINVAL;
7815
7816 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7817
7818 err = ieee80211_get_ratemask(sband, rates, n_rates,
7819 &setup.basic_rates);
7820 if (err)
7821 return err;
7822 }
7823
c80d545d 7824 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7825}
7826
7827static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7828{
7829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7830 struct net_device *dev = info->user_ptr[1];
7831
7832 return cfg80211_leave_mesh(rdev, dev);
7833}
7834
dfb89c56 7835#ifdef CONFIG_PM
bb92d199
AK		 7836static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7837 struct cfg80211_registered_device *rdev)
7838{
6abb9cb9 7839 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 7840 struct nlattr *nl_pats, *nl_pat;
7841 int i, pat_len;
7842
6abb9cb9 7843 if (!wowlan->n_patterns)
bb92d199
AK		 7844 return 0;
7845
7846 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7847 if (!nl_pats)
7848 return -ENOBUFS;
7849
6abb9cb9 7850 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 7851 nl_pat = nla_nest_start(msg, i + 1);
7852 if (!nl_pat)
7853 return -ENOBUFS;
6abb9cb9 7854 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 7855 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 7856 wowlan->patterns[i].mask) ||
50ac6607
AK		 7857 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
7858 wowlan->patterns[i].pattern) ||
7859 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 7860 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 7861 return -ENOBUFS;
7862 nla_nest_end(msg, nl_pat);
7863 }
7864 nla_nest_end(msg, nl_pats);
7865
7866 return 0;
7867}
7868
2a0e047e
JB		 7869static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7870 struct cfg80211_wowlan_tcp *tcp)
7871{
7872 struct nlattr *nl_tcp;
7873
7874 if (!tcp)
7875 return 0;
7876
7877 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7878 if (!nl_tcp)
7879 return -ENOBUFS;
7880
7881 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7882 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7883 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7884 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7885 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7886 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7887 tcp->payload_len, tcp->payload) ||
7888 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7889 tcp->data_interval) ||
7890 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7891 tcp->wake_len, tcp->wake_data) ||
7892 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7893 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7894 return -ENOBUFS;
7895
7896 if (tcp->payload_seq.len &&
7897 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7898 sizeof(tcp->payload_seq), &tcp->payload_seq))
7899 return -ENOBUFS;
7900
7901 if (tcp->payload_tok.len &&
7902 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7903 sizeof(tcp->payload_tok) + tcp->tokens_size,
7904 &tcp->payload_tok))
7905 return -ENOBUFS;
7906
e248ad30
JB		 7907 nla_nest_end(msg, nl_tcp);
7908
2a0e047e
JB		 7909 return 0;
7910}
7911
ff1b6e69
JB		 7912static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7913{
7914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7915 struct sk_buff *msg;
7916 void *hdr;
2a0e047e 7917 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7918
964dc9e2 7919 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 7920 return -EOPNOTSUPP;
7921
6abb9cb9 7922 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 7923 /* adjust size to have room for all the data */
6abb9cb9
JB		 7924 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7925 rdev->wiphy.wowlan_config->tcp->payload_len +
7926 rdev->wiphy.wowlan_config->tcp->wake_len +
7927 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 7928 }
7929
7930 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7931 if (!msg)
7932 return -ENOMEM;
7933
15e47304 7934 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7935 NL80211_CMD_GET_WOWLAN);
7936 if (!hdr)
7937 goto nla_put_failure;
7938
6abb9cb9 7939 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 7940 struct nlattr *nl_wowlan;
7941
7942 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7943 if (!nl_wowlan)
7944 goto nla_put_failure;
7945
6abb9cb9 7946 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 7947 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 7948 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 7949 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 7950 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 7951 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 7952 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 7953 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 7954 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 7955 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 7956 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 7957 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 7958 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 7959 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7960 goto nla_put_failure;
2a0e047e 7961
bb92d199
AK		 7962 if (nl80211_send_wowlan_patterns(msg, rdev))
7963 goto nla_put_failure;
2a0e047e 7964
6abb9cb9
JB		 7965 if (nl80211_send_wowlan_tcp(msg,
7966 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 7967 goto nla_put_failure;
7968
ff1b6e69
JB		 7969 nla_nest_end(msg, nl_wowlan);
7970 }
7971
7972 genlmsg_end(msg, hdr);
7973 return genlmsg_reply(msg, info);
7974
7975nla_put_failure:
7976 nlmsg_free(msg);
7977 return -ENOBUFS;
7978}
7979
2a0e047e
JB		 7980static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7981 struct nlattr *attr,
7982 struct cfg80211_wowlan *trig)
7983{
7984 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7985 struct cfg80211_wowlan_tcp *cfg;
7986 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7987 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7988 u32 size;
7989 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7990 int err, port;
7991
964dc9e2 7992 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 7993 return -EINVAL;
7994
7995 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7996 nla_data(attr), nla_len(attr),
7997 nl80211_wowlan_tcp_policy);
7998 if (err)
7999 return err;
8000
8001 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8002 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8003 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8004 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8005 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8006 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8007 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8008 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8009 return -EINVAL;
8010
8011 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8012 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8013 return -EINVAL;
8014
8015 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8016 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8017 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8018 return -EINVAL;
8019
8020 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8021 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8022 return -EINVAL;
8023
8024 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8025 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8026 return -EINVAL;
8027
8028 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8029 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8030
8031 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8032 tokens_size = tokln - sizeof(*tok);
8033
8034 if (!tok->len || tokens_size % tok->len)
8035 return -EINVAL;
964dc9e2 8036 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8037 return -EINVAL;
964dc9e2 8038 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8039 return -EINVAL;
964dc9e2 8040 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8041 return -EINVAL;
964dc9e2 8042 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8043 return -EINVAL;
8044 if (tok->offset + tok->len > data_size)
8045 return -EINVAL;
8046 }
8047
8048 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8049 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8050 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8051 return -EINVAL;
8052 if (seq->len == 0 || seq->len > 4)
8053 return -EINVAL;
8054 if (seq->len + seq->offset > data_size)
8055 return -EINVAL;
8056 }
8057
8058 size = sizeof(*cfg);
8059 size += data_size;
8060 size += wake_size + wake_mask_size;
8061 size += tokens_size;
8062
8063 cfg = kzalloc(size, GFP_KERNEL);
8064 if (!cfg)
8065 return -ENOMEM;
8066 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8067 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8068 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8069 ETH_ALEN);
8070 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8071 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8072 else
8073 port = 0;
8074#ifdef CONFIG_INET
8075 /* allocate a socket and port for it and use it */
8076 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8077 IPPROTO_TCP, &cfg->sock, 1);
8078 if (err) {
8079 kfree(cfg);
8080 return err;
8081 }
8082 if (inet_csk_get_port(cfg->sock->sk, port)) {
8083 sock_release(cfg->sock);
8084 kfree(cfg);
8085 return -EADDRINUSE;
8086 }
8087 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8088#else
8089 if (!port) {
8090 kfree(cfg);
8091 return -EINVAL;
8092 }
8093 cfg->src_port = port;
8094#endif
8095
8096 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8097 cfg->payload_len = data_size;
8098 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8099 memcpy((void *)cfg->payload,
8100 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8101 data_size);
8102 if (seq)
8103 cfg->payload_seq = *seq;
8104 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8105 cfg->wake_len = wake_size;
8106 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8107 memcpy((void *)cfg->wake_data,
8108 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8109 wake_size);
8110 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8111 data_size + wake_size;
8112 memcpy((void *)cfg->wake_mask,
8113 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8114 wake_mask_size);
8115 if (tok) {
8116 cfg->tokens_size = tokens_size;
8117 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8118 }
8119
8120 trig->tcp = cfg;
8121
8122 return 0;
8123}
8124
ff1b6e69
JB		 8125static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8126{
8127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8128 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8129 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8130 struct cfg80211_wowlan *ntrig;
964dc9e2 8131 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8132 int err, i;
6abb9cb9 8133 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8134
964dc9e2 8135 if (!wowlan)
ff1b6e69
JB		 8136 return -EOPNOTSUPP;
8137
ae33bd81
JB		 8138 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8139 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8140 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8141 goto set_wakeup;
8142 }
ff1b6e69
JB		 8143
8144 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8145 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8146 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8147 nl80211_wowlan_policy);
8148 if (err)
8149 return err;
8150
8151 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8152 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8153 return -EINVAL;
8154 new_triggers.any = true;
8155 }
8156
8157 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8158 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8159 return -EINVAL;
8160 new_triggers.disconnect = true;
8161 }
8162
8163 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8164 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8165 return -EINVAL;
8166 new_triggers.magic_pkt = true;
8167 }
8168
77dbbb13
JB		 8169 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8170 return -EINVAL;
8171
8172 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8173 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8174 return -EINVAL;
8175 new_triggers.gtk_rekey_failure = true;
8176 }
8177
8178 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8179 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8180 return -EINVAL;
8181 new_triggers.eap_identity_req = true;
8182 }
8183
8184 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8185 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8186 return -EINVAL;
8187 new_triggers.four_way_handshake = true;
8188 }
8189
8190 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8191 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8192 return -EINVAL;
8193 new_triggers.rfkill_release = true;
8194 }
8195
ff1b6e69
JB		 8196 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8197 struct nlattr *pat;
8198 int n_patterns = 0;
bb92d199 8199 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8200 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8201
8202 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8203 rem)
8204 n_patterns++;
8205 if (n_patterns > wowlan->n_patterns)
8206 return -EINVAL;
8207
8208 new_triggers.patterns = kcalloc(n_patterns,
8209 sizeof(new_triggers.patterns[0]),
8210 GFP_KERNEL);
8211 if (!new_triggers.patterns)
8212 return -ENOMEM;
8213
8214 new_triggers.n_patterns = n_patterns;
8215 i = 0;
8216
8217 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8218 rem) {
50ac6607
AK		 8219 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8220 nla_len(pat), NULL);
ff1b6e69 8221 err = -EINVAL;
50ac6607
AK		 8222 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8223 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8224 goto error;
50ac6607 8225 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8226 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8227 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8228 goto error;
8229 if (pat_len > wowlan->pattern_max_len ||
8230 pat_len < wowlan->pattern_min_len)
8231 goto error;
8232
50ac6607 8233 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8234 pkt_offset = 0;
8235 else
8236 pkt_offset = nla_get_u32(
50ac6607 8237 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8238 if (pkt_offset > wowlan->max_pkt_offset)
8239 goto error;
8240 new_triggers.patterns[i].pkt_offset = pkt_offset;
8241
ff1b6e69
JB		 8242 new_triggers.patterns[i].mask =
8243 kmalloc(mask_len + pat_len, GFP_KERNEL);
8244 if (!new_triggers.patterns[i].mask) {
8245 err = -ENOMEM;
8246 goto error;
8247 }
8248 new_triggers.patterns[i].pattern =
8249 new_triggers.patterns[i].mask + mask_len;
8250 memcpy(new_triggers.patterns[i].mask,
50ac6607 8251 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8252 mask_len);
8253 new_triggers.patterns[i].pattern_len = pat_len;
8254 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8255 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8256 pat_len);
8257 i++;
8258 }
8259 }
8260
2a0e047e
JB		 8261 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8262 err = nl80211_parse_wowlan_tcp(
8263 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8264 &new_triggers);
8265 if (err)
8266 goto error;
8267 }
8268
ae33bd81
JB		 8269 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8270 if (!ntrig) {
8271 err = -ENOMEM;
8272 goto error;
ff1b6e69 8273 }
ae33bd81 8274 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8275 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8276
ae33bd81 8277 set_wakeup:
6abb9cb9
JB		 8278 if (rdev->ops->set_wakeup &&
8279 prev_enabled != !!rdev->wiphy.wowlan_config)
8280 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8281
ff1b6e69
JB		 8282 return 0;
8283 error:
8284 for (i = 0; i < new_triggers.n_patterns; i++)
8285 kfree(new_triggers.patterns[i].mask);
8286 kfree(new_triggers.patterns);
2a0e047e
JB		 8287 if (new_triggers.tcp && new_triggers.tcp->sock)
8288 sock_release(new_triggers.tcp->sock);
8289 kfree(new_triggers.tcp);
ff1b6e69
JB		 8290 return err;
8291}
dfb89c56 8292#endif
ff1b6e69 8293
be29b99a
AK		 8294static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8295 struct cfg80211_registered_device *rdev)
8296{
8297 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8298 int i, j, pat_len;
8299 struct cfg80211_coalesce_rules *rule;
8300
8301 if (!rdev->coalesce->n_rules)
8302 return 0;
8303
8304 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8305 if (!nl_rules)
8306 return -ENOBUFS;
8307
8308 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8309 nl_rule = nla_nest_start(msg, i + 1);
8310 if (!nl_rule)
8311 return -ENOBUFS;
8312
8313 rule = &rdev->coalesce->rules[i];
8314 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8315 rule->delay))
8316 return -ENOBUFS;
8317
8318 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8319 rule->condition))
8320 return -ENOBUFS;
8321
8322 nl_pats = nla_nest_start(msg,
8323 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8324 if (!nl_pats)
8325 return -ENOBUFS;
8326
8327 for (j = 0; j < rule->n_patterns; j++) {
8328 nl_pat = nla_nest_start(msg, j + 1);
8329 if (!nl_pat)
8330 return -ENOBUFS;
8331 pat_len = rule->patterns[j].pattern_len;
8332 if (nla_put(msg, NL80211_PKTPAT_MASK,
8333 DIV_ROUND_UP(pat_len, 8),
8334 rule->patterns[j].mask) ||
8335 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8336 rule->patterns[j].pattern) ||
8337 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8338 rule->patterns[j].pkt_offset))
8339 return -ENOBUFS;
8340 nla_nest_end(msg, nl_pat);
8341 }
8342 nla_nest_end(msg, nl_pats);
8343 nla_nest_end(msg, nl_rule);
8344 }
8345 nla_nest_end(msg, nl_rules);
8346
8347 return 0;
8348}
8349
8350static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8351{
8352 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8353 struct sk_buff *msg;
8354 void *hdr;
8355
8356 if (!rdev->wiphy.coalesce)
8357 return -EOPNOTSUPP;
8358
8359 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8360 if (!msg)
8361 return -ENOMEM;
8362
8363 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8364 NL80211_CMD_GET_COALESCE);
8365 if (!hdr)
8366 goto nla_put_failure;
8367
8368 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8369 goto nla_put_failure;
8370
8371 genlmsg_end(msg, hdr);
8372 return genlmsg_reply(msg, info);
8373
8374nla_put_failure:
8375 nlmsg_free(msg);
8376 return -ENOBUFS;
8377}
8378
8379void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8380{
8381 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8382 int i, j;
8383 struct cfg80211_coalesce_rules *rule;
8384
8385 if (!coalesce)
8386 return;
8387
8388 for (i = 0; i < coalesce->n_rules; i++) {
8389 rule = &coalesce->rules[i];
8390 for (j = 0; j < rule->n_patterns; j++)
8391 kfree(rule->patterns[j].mask);
8392 kfree(rule->patterns);
8393 }
8394 kfree(coalesce->rules);
8395 kfree(coalesce);
8396 rdev->coalesce = NULL;
8397}
8398
8399static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8400 struct nlattr *rule,
8401 struct cfg80211_coalesce_rules *new_rule)
8402{
8403 int err, i;
8404 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8405 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8406 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8407 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8408
8409 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8410 nla_len(rule), nl80211_coalesce_policy);
8411 if (err)
8412 return err;
8413
8414 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8415 new_rule->delay =
8416 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8417 if (new_rule->delay > coalesce->max_delay)
8418 return -EINVAL;
8419
8420 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8421 new_rule->condition =
8422 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8423 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8424 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8425 return -EINVAL;
8426
8427 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8428 return -EINVAL;
8429
8430 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8431 rem)
8432 n_patterns++;
8433 if (n_patterns > coalesce->n_patterns)
8434 return -EINVAL;
8435
8436 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8437 GFP_KERNEL);
8438 if (!new_rule->patterns)
8439 return -ENOMEM;
8440
8441 new_rule->n_patterns = n_patterns;
8442 i = 0;
8443
8444 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8445 rem) {
8446 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8447 nla_len(pat), NULL);
8448 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8449 !pat_tb[NL80211_PKTPAT_PATTERN])
8450 return -EINVAL;
8451 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8452 mask_len = DIV_ROUND_UP(pat_len, 8);
8453 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8454 return -EINVAL;
8455 if (pat_len > coalesce->pattern_max_len ||
8456 pat_len < coalesce->pattern_min_len)
8457 return -EINVAL;
8458
8459 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8460 pkt_offset = 0;
8461 else
8462 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8463 if (pkt_offset > coalesce->max_pkt_offset)
8464 return -EINVAL;
8465 new_rule->patterns[i].pkt_offset = pkt_offset;
8466
8467 new_rule->patterns[i].mask =
8468 kmalloc(mask_len + pat_len, GFP_KERNEL);
8469 if (!new_rule->patterns[i].mask)
8470 return -ENOMEM;
8471 new_rule->patterns[i].pattern =
8472 new_rule->patterns[i].mask + mask_len;
8473 memcpy(new_rule->patterns[i].mask,
8474 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8475 new_rule->patterns[i].pattern_len = pat_len;
8476 memcpy(new_rule->patterns[i].pattern,
8477 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8478 i++;
8479 }
8480
8481 return 0;
8482}
8483
8484static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8485{
8486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8487 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8488 struct cfg80211_coalesce new_coalesce = {};
8489 struct cfg80211_coalesce *n_coalesce;
8490 int err, rem_rule, n_rules = 0, i, j;
8491 struct nlattr *rule;
8492 struct cfg80211_coalesce_rules *tmp_rule;
8493
8494 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8495 return -EOPNOTSUPP;
8496
8497 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8498 cfg80211_rdev_free_coalesce(rdev);
8499 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8500 return 0;
8501 }
8502
8503 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8504 rem_rule)
8505 n_rules++;
8506 if (n_rules > coalesce->n_rules)
8507 return -EINVAL;
8508
8509 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8510 GFP_KERNEL);
8511 if (!new_coalesce.rules)
8512 return -ENOMEM;
8513
8514 new_coalesce.n_rules = n_rules;
8515 i = 0;
8516
8517 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8518 rem_rule) {
8519 err = nl80211_parse_coalesce_rule(rdev, rule,
8520 &new_coalesce.rules[i]);
8521 if (err)
8522 goto error;
8523
8524 i++;
8525 }
8526
8527 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8528 if (err)
8529 goto error;
8530
8531 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8532 if (!n_coalesce) {
8533 err = -ENOMEM;
8534 goto error;
8535 }
8536 cfg80211_rdev_free_coalesce(rdev);
8537 rdev->coalesce = n_coalesce;
8538
8539 return 0;
8540error:
8541 for (i = 0; i < new_coalesce.n_rules; i++) {
8542 tmp_rule = &new_coalesce.rules[i];
8543 for (j = 0; j < tmp_rule->n_patterns; j++)
8544 kfree(tmp_rule->patterns[j].mask);
8545 kfree(tmp_rule->patterns);
8546 }
8547 kfree(new_coalesce.rules);
8548
8549 return err;
8550}
8551
e5497d76
JB		 8552static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8553{
8554 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8555 struct net_device *dev = info->user_ptr[1];
8556 struct wireless_dev *wdev = dev->ieee80211_ptr;
8557 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8558 struct cfg80211_gtk_rekey_data rekey_data;
8559 int err;
8560
8561 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8562 return -EINVAL;
8563
8564 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8565 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8566 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8567 nl80211_rekey_policy);
8568 if (err)
8569 return err;
8570
8571 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8572 return -ERANGE;
8573 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8574 return -ERANGE;
8575 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8576 return -ERANGE;
8577
8578 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8579 NL80211_KEK_LEN);
8580 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8581 NL80211_KCK_LEN);
8582 memcpy(rekey_data.replay_ctr,
8583 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8584 NL80211_REPLAY_CTR_LEN);
8585
8586 wdev_lock(wdev);
8587 if (!wdev->current_bss) {
8588 err = -ENOTCONN;
8589 goto out;
8590 }
8591
8592 if (!rdev->ops->set_rekey_data) {
8593 err = -EOPNOTSUPP;
8594 goto out;
8595 }
8596
e35e4d28 8597 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8598 out:
8599 wdev_unlock(wdev);
8600 return err;
8601}
8602
28946da7
JB		 8603static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8604 struct genl_info *info)
8605{
8606 struct net_device *dev = info->user_ptr[1];
8607 struct wireless_dev *wdev = dev->ieee80211_ptr;
8608
8609 if (wdev->iftype != NL80211_IFTYPE_AP &&
8610 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8611 return -EINVAL;
8612
15e47304 8613 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8614 return -EBUSY;
8615
15e47304 8616 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8617 return 0;
8618}
8619
7f6cf311
JB		 8620static int nl80211_probe_client(struct sk_buff *skb,
8621 struct genl_info *info)
8622{
8623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8624 struct net_device *dev = info->user_ptr[1];
8625 struct wireless_dev *wdev = dev->ieee80211_ptr;
8626 struct sk_buff *msg;
8627 void *hdr;
8628 const u8 *addr;
8629 u64 cookie;
8630 int err;
8631
8632 if (wdev->iftype != NL80211_IFTYPE_AP &&
8633 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8634 return -EOPNOTSUPP;
8635
8636 if (!info->attrs[NL80211_ATTR_MAC])
8637 return -EINVAL;
8638
8639 if (!rdev->ops->probe_client)
8640 return -EOPNOTSUPP;
8641
8642 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8643 if (!msg)
8644 return -ENOMEM;
8645
15e47304 8646 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8647 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8648 if (!hdr) {
8649 err = -ENOBUFS;
7f6cf311
JB		 8650 goto free_msg;
8651 }
8652
8653 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8654
e35e4d28 8655 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8656 if (err)
8657 goto free_msg;
8658
9360ffd1
DM		 8659 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8660 goto nla_put_failure;
7f6cf311
JB		 8661
8662 genlmsg_end(msg, hdr);
8663
8664 return genlmsg_reply(msg, info);
8665
8666 nla_put_failure:
8667 err = -ENOBUFS;
8668 free_msg:
8669 nlmsg_free(msg);
8670 return err;
8671}
8672
5e760230
JB		 8673static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8674{
8675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8676 struct cfg80211_beacon_registration *reg, *nreg;
8677 int rv;
5e760230
JB		 8678
8679 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8680 return -EOPNOTSUPP;
8681
37c73b5f
BG		 8682 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8683 if (!nreg)
8684 return -ENOMEM;
8685
8686 /* First, check if already registered. */
8687 spin_lock_bh(&rdev->beacon_registrations_lock);
8688 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8689 if (reg->nlportid == info->snd_portid) {
8690 rv = -EALREADY;
8691 goto out_err;
8692 }
8693 }
8694 /* Add it to the list */
8695 nreg->nlportid = info->snd_portid;
8696 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8697
37c73b5f 8698 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8699
8700 return 0;
37c73b5f
BG		 8701out_err:
8702 spin_unlock_bh(&rdev->beacon_registrations_lock);
8703 kfree(nreg);
8704 return rv;
5e760230
JB		 8705}
8706
98104fde
JB		 8707static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8708{
8709 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8710 struct wireless_dev *wdev = info->user_ptr[1];
8711 int err;
8712
8713 if (!rdev->ops->start_p2p_device)
8714 return -EOPNOTSUPP;
8715
8716 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8717 return -EOPNOTSUPP;
8718
8719 if (wdev->p2p_started)
8720 return 0;
8721
98104fde 8722 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8723 if (err)
8724 return err;
8725
eeb126e9 8726 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8727 if (err)
8728 return err;
8729
8730 wdev->p2p_started = true;
98104fde 8731 rdev->opencount++;
98104fde
JB		 8732
8733 return 0;
8734}
8735
8736static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8737{
8738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8739 struct wireless_dev *wdev = info->user_ptr[1];
8740
8741 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8742 return -EOPNOTSUPP;
8743
8744 if (!rdev->ops->stop_p2p_device)
8745 return -EOPNOTSUPP;
8746
f9f47529 8747 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8748
8749 return 0;
8750}
8751
3713b4e3
JB		 8752static int nl80211_get_protocol_features(struct sk_buff *skb,
8753 struct genl_info *info)
8754{
8755 void *hdr;
8756 struct sk_buff *msg;
8757
8758 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8759 if (!msg)
8760 return -ENOMEM;
8761
8762 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8763 NL80211_CMD_GET_PROTOCOL_FEATURES);
8764 if (!hdr)
8765 goto nla_put_failure;
8766
8767 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8768 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8769 goto nla_put_failure;
8770
8771 genlmsg_end(msg, hdr);
8772 return genlmsg_reply(msg, info);
8773
8774 nla_put_failure:
8775 kfree_skb(msg);
8776 return -ENOBUFS;
8777}
8778
355199e0
JM		 8779static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8780{
8781 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8782 struct cfg80211_update_ft_ies_params ft_params;
8783 struct net_device *dev = info->user_ptr[1];
8784
8785 if (!rdev->ops->update_ft_ies)
8786 return -EOPNOTSUPP;
8787
8788 if (!info->attrs[NL80211_ATTR_MDID] ||
8789 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8790 return -EINVAL;
8791
8792 memset(&ft_params, 0, sizeof(ft_params));
8793 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8794 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8795 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8796
8797 return rdev_update_ft_ies(rdev, dev, &ft_params);
8798}
8799
5de17984
AS		 8800static int nl80211_crit_protocol_start(struct sk_buff *skb,
8801 struct genl_info *info)
8802{
8803 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8804 struct wireless_dev *wdev = info->user_ptr[1];
8805 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8806 u16 duration;
8807 int ret;
8808
8809 if (!rdev->ops->crit_proto_start)
8810 return -EOPNOTSUPP;
8811
8812 if (WARN_ON(!rdev->ops->crit_proto_stop))
8813 return -EINVAL;
8814
8815 if (rdev->crit_proto_nlportid)
8816 return -EBUSY;
8817
8818 /* determine protocol if provided */
8819 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8820 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8821
8822 if (proto >= NUM_NL80211_CRIT_PROTO)
8823 return -EINVAL;
8824
8825 /* timeout must be provided */
8826 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8827 return -EINVAL;
8828
8829 duration =
8830 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8831
8832 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8833 return -ERANGE;
8834
8835 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8836 if (!ret)
8837 rdev->crit_proto_nlportid = info->snd_portid;
8838
8839 return ret;
8840}
8841
8842static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8843 struct genl_info *info)
8844{
8845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8846 struct wireless_dev *wdev = info->user_ptr[1];
8847
8848 if (!rdev->ops->crit_proto_stop)
8849 return -EOPNOTSUPP;
8850
8851 if (rdev->crit_proto_nlportid) {
8852 rdev->crit_proto_nlportid = 0;
8853 rdev_crit_proto_stop(rdev, wdev);
8854 }
8855 return 0;
8856}
8857
4c476991
JB		 8858#define NL80211_FLAG_NEED_WIPHY 0x01
8859#define NL80211_FLAG_NEED_NETDEV 0x02
8860#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8861#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8862#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8863 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8864#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8865/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8866#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8867 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 8868
f84f771d 8869static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 8870 struct genl_info *info)
8871{
8872 struct cfg80211_registered_device *rdev;
89a54e48 8873 struct wireless_dev *wdev;
4c476991 8874 struct net_device *dev;
4c476991
JB		 8875 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8876
8877 if (rtnl)
8878 rtnl_lock();
8879
8880 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 8881 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 8882 if (IS_ERR(rdev)) {
8883 if (rtnl)
8884 rtnl_unlock();
8885 return PTR_ERR(rdev);
8886 }
8887 info->user_ptr[0] = rdev;
1bf614ef
JB		 8888 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8889 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 8890 ASSERT_RTNL();
8891
89a54e48
JB		 8892 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8893 info->attrs);
8894 if (IS_ERR(wdev)) {
4c476991
JB		 8895 if (rtnl)
8896 rtnl_unlock();
89a54e48 8897 return PTR_ERR(wdev);
4c476991 8898 }
89a54e48 8899
89a54e48
JB		 8900 dev = wdev->netdev;
8901 rdev = wiphy_to_dev(wdev->wiphy);
8902
1bf614ef
JB		 8903 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8904 if (!dev) {
1bf614ef
JB		 8905 if (rtnl)
8906 rtnl_unlock();
8907 return -EINVAL;
8908 }
8909
8910 info->user_ptr[1] = dev;
8911 } else {
8912 info->user_ptr[1] = wdev;
41265714 8913 }
1bf614ef
JB		 8914
8915 if (dev) {
8916 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8917 !netif_running(dev)) {
1bf614ef
JB		 8918 if (rtnl)
8919 rtnl_unlock();
8920 return -ENETDOWN;
8921 }
8922
8923 dev_hold(dev);
98104fde
JB		 8924 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8925 if (!wdev->p2p_started) {
98104fde
JB		 8926 if (rtnl)
8927 rtnl_unlock();
8928 return -ENETDOWN;
8929 }
41265714 8930 }
89a54e48 8931
4c476991 8932 info->user_ptr[0] = rdev;
4c476991
JB		 8933 }
8934
8935 return 0;
8936}
8937
f84f771d 8938static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 8939 struct genl_info *info)
8940{
1bf614ef
JB		 8941 if (info->user_ptr[1]) {
8942 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8943 struct wireless_dev *wdev = info->user_ptr[1];
8944
8945 if (wdev->netdev)
8946 dev_put(wdev->netdev);
8947 } else {
8948 dev_put(info->user_ptr[1]);
8949 }
8950 }
4c476991
JB		 8951 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8952 rtnl_unlock();
8953}
8954
4534de83 8955static const struct genl_ops nl80211_ops[] = {
55682965
JB		 8956 {
8957 .cmd = NL80211_CMD_GET_WIPHY,
8958 .doit = nl80211_get_wiphy,
8959 .dumpit = nl80211_dump_wiphy,
86e8cf98 8960 .done = nl80211_dump_wiphy_done,
55682965
JB		 8961 .policy = nl80211_policy,
8962 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8963 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8964 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8965 },
8966 {
8967 .cmd = NL80211_CMD_SET_WIPHY,
8968 .doit = nl80211_set_wiphy,
8969 .policy = nl80211_policy,
8970 .flags = GENL_ADMIN_PERM,
4c476991 8971 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 8972 },
8973 {
8974 .cmd = NL80211_CMD_GET_INTERFACE,
8975 .doit = nl80211_get_interface,
8976 .dumpit = nl80211_dump_interface,
8977 .policy = nl80211_policy,
8978 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8979 .internal_flags = NL80211_FLAG_NEED_WDEV |
8980 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8981 },
8982 {
8983 .cmd = NL80211_CMD_SET_INTERFACE,
8984 .doit = nl80211_set_interface,
8985 .policy = nl80211_policy,
8986 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8987 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8988 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8989 },
8990 {
8991 .cmd = NL80211_CMD_NEW_INTERFACE,
8992 .doit = nl80211_new_interface,
8993 .policy = nl80211_policy,
8994 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8995 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8996 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8997 },
8998 {
8999 .cmd = NL80211_CMD_DEL_INTERFACE,
9000 .doit = nl80211_del_interface,
9001 .policy = nl80211_policy,
41ade00f 9002 .flags = GENL_ADMIN_PERM,
84efbb84 9003 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9004 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9005 },
9006 {
9007 .cmd = NL80211_CMD_GET_KEY,
9008 .doit = nl80211_get_key,
9009 .policy = nl80211_policy,
9010 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9011 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9012 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9013 },
9014 {
9015 .cmd = NL80211_CMD_SET_KEY,
9016 .doit = nl80211_set_key,
9017 .policy = nl80211_policy,
9018 .flags = GENL_ADMIN_PERM,
41265714 9019 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9020 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9021 },
9022 {
9023 .cmd = NL80211_CMD_NEW_KEY,
9024 .doit = nl80211_new_key,
9025 .policy = nl80211_policy,
9026 .flags = GENL_ADMIN_PERM,
41265714 9027 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9028 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9029 },
9030 {
9031 .cmd = NL80211_CMD_DEL_KEY,
9032 .doit = nl80211_del_key,
9033 .policy = nl80211_policy,
55682965 9034 .flags = GENL_ADMIN_PERM,
41265714 9035 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9036 NL80211_FLAG_NEED_RTNL,
55682965 9037 },
ed1b6cc7
JB		 9038 {
9039 .cmd = NL80211_CMD_SET_BEACON,
9040 .policy = nl80211_policy,
9041 .flags = GENL_ADMIN_PERM,
8860020e 9042 .doit = nl80211_set_beacon,
2b5f8b0b 9043 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9044 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9045 },
9046 {
8860020e 9047 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9048 .policy = nl80211_policy,
9049 .flags = GENL_ADMIN_PERM,
8860020e 9050 .doit = nl80211_start_ap,
2b5f8b0b 9051 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9052 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9053 },
9054 {
8860020e 9055 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9056 .policy = nl80211_policy,
9057 .flags = GENL_ADMIN_PERM,
8860020e 9058 .doit = nl80211_stop_ap,
2b5f8b0b 9059 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9060 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9061 },
5727ef1b
JB		 9062 {
9063 .cmd = NL80211_CMD_GET_STATION,
9064 .doit = nl80211_get_station,
2ec600d6 9065 .dumpit = nl80211_dump_station,
5727ef1b 9066 .policy = nl80211_policy,
4c476991
JB		 9067 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9068 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9069 },
9070 {
9071 .cmd = NL80211_CMD_SET_STATION,
9072 .doit = nl80211_set_station,
9073 .policy = nl80211_policy,
9074 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9075 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9076 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9077 },
9078 {
9079 .cmd = NL80211_CMD_NEW_STATION,
9080 .doit = nl80211_new_station,
9081 .policy = nl80211_policy,
9082 .flags = GENL_ADMIN_PERM,
41265714 9083 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9084 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9085 },
9086 {
9087 .cmd = NL80211_CMD_DEL_STATION,
9088 .doit = nl80211_del_station,
9089 .policy = nl80211_policy,
2ec600d6 9090 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9091 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9092 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9093 },
9094 {
9095 .cmd = NL80211_CMD_GET_MPATH,
9096 .doit = nl80211_get_mpath,
9097 .dumpit = nl80211_dump_mpath,
9098 .policy = nl80211_policy,
9099 .flags = GENL_ADMIN_PERM,
41265714 9100 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9101 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9102 },
9103 {
9104 .cmd = NL80211_CMD_SET_MPATH,
9105 .doit = nl80211_set_mpath,
9106 .policy = nl80211_policy,
9107 .flags = GENL_ADMIN_PERM,
41265714 9108 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9109 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9110 },
9111 {
9112 .cmd = NL80211_CMD_NEW_MPATH,
9113 .doit = nl80211_new_mpath,
9114 .policy = nl80211_policy,
9115 .flags = GENL_ADMIN_PERM,
41265714 9116 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9117 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9118 },
9119 {
9120 .cmd = NL80211_CMD_DEL_MPATH,
9121 .doit = nl80211_del_mpath,
9122 .policy = nl80211_policy,
9f1ba906 9123 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9124 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9125 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9126 },
9127 {
9128 .cmd = NL80211_CMD_SET_BSS,
9129 .doit = nl80211_set_bss,
9130 .policy = nl80211_policy,
b2e1b302 9131 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9132 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9133 NL80211_FLAG_NEED_RTNL,
b2e1b302 9134 },
f130347c
LR		 9135 {
9136 .cmd = NL80211_CMD_GET_REG,
9137 .doit = nl80211_get_reg,
9138 .policy = nl80211_policy,
5fe231e8 9139 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9140 /* can be retrieved by unprivileged users */
9141 },
b2e1b302
LR		 9142 {
9143 .cmd = NL80211_CMD_SET_REG,
9144 .doit = nl80211_set_reg,
9145 .policy = nl80211_policy,
9146 .flags = GENL_ADMIN_PERM,
5fe231e8 9147 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9148 },
9149 {
9150 .cmd = NL80211_CMD_REQ_SET_REG,
9151 .doit = nl80211_req_set_reg,
9152 .policy = nl80211_policy,
93da9cc1 9153 .flags = GENL_ADMIN_PERM,
9154 },
9155 {
24bdd9f4
JC		 9156 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9157 .doit = nl80211_get_mesh_config,
93da9cc1 9158 .policy = nl80211_policy,
9159 /* can be retrieved by unprivileged users */
2b5f8b0b 9160 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9161 NL80211_FLAG_NEED_RTNL,
93da9cc1 9162 },
9163 {
24bdd9f4
JC		 9164 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9165 .doit = nl80211_update_mesh_config,
93da9cc1 9166 .policy = nl80211_policy,
9aed3cc1 9167 .flags = GENL_ADMIN_PERM,
29cbe68c 9168 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9169 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9170 },
2a519311
JB		 9171 {
9172 .cmd = NL80211_CMD_TRIGGER_SCAN,
9173 .doit = nl80211_trigger_scan,
9174 .policy = nl80211_policy,
9175 .flags = GENL_ADMIN_PERM,
fd014284 9176 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9177 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9178 },
9179 {
9180 .cmd = NL80211_CMD_GET_SCAN,
9181 .policy = nl80211_policy,
9182 .dumpit = nl80211_dump_scan,
9183 },
807f8a8c
LC		 9184 {
9185 .cmd = NL80211_CMD_START_SCHED_SCAN,
9186 .doit = nl80211_start_sched_scan,
9187 .policy = nl80211_policy,
9188 .flags = GENL_ADMIN_PERM,
9189 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9190 NL80211_FLAG_NEED_RTNL,
9191 },
9192 {
9193 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9194 .doit = nl80211_stop_sched_scan,
9195 .policy = nl80211_policy,
9196 .flags = GENL_ADMIN_PERM,
9197 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9198 NL80211_FLAG_NEED_RTNL,
9199 },
636a5d36
JM		 9200 {
9201 .cmd = NL80211_CMD_AUTHENTICATE,
9202 .doit = nl80211_authenticate,
9203 .policy = nl80211_policy,
9204 .flags = GENL_ADMIN_PERM,
41265714 9205 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9206 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9207 },
9208 {
9209 .cmd = NL80211_CMD_ASSOCIATE,
9210 .doit = nl80211_associate,
9211 .policy = nl80211_policy,
9212 .flags = GENL_ADMIN_PERM,
41265714 9213 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9214 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9215 },
9216 {
9217 .cmd = NL80211_CMD_DEAUTHENTICATE,
9218 .doit = nl80211_deauthenticate,
9219 .policy = nl80211_policy,
9220 .flags = GENL_ADMIN_PERM,
41265714 9221 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9222 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9223 },
9224 {
9225 .cmd = NL80211_CMD_DISASSOCIATE,
9226 .doit = nl80211_disassociate,
9227 .policy = nl80211_policy,
9228 .flags = GENL_ADMIN_PERM,
41265714 9229 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9230 NL80211_FLAG_NEED_RTNL,
636a5d36 9231 },
04a773ad
JB		 9232 {
9233 .cmd = NL80211_CMD_JOIN_IBSS,
9234 .doit = nl80211_join_ibss,
9235 .policy = nl80211_policy,
9236 .flags = GENL_ADMIN_PERM,
41265714 9237 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9238 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9239 },
9240 {
9241 .cmd = NL80211_CMD_LEAVE_IBSS,
9242 .doit = nl80211_leave_ibss,
9243 .policy = nl80211_policy,
9244 .flags = GENL_ADMIN_PERM,
41265714 9245 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9246 NL80211_FLAG_NEED_RTNL,
04a773ad 9247 },
aff89a9b
JB		 9248#ifdef CONFIG_NL80211_TESTMODE
9249 {
9250 .cmd = NL80211_CMD_TESTMODE,
9251 .doit = nl80211_testmode_do,
71063f0e 9252 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9253 .policy = nl80211_policy,
9254 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9255 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9256 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9257 },
9258#endif
b23aa676
SO		 9259 {
9260 .cmd = NL80211_CMD_CONNECT,
9261 .doit = nl80211_connect,
9262 .policy = nl80211_policy,
9263 .flags = GENL_ADMIN_PERM,
41265714 9264 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9265 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9266 },
9267 {
9268 .cmd = NL80211_CMD_DISCONNECT,
9269 .doit = nl80211_disconnect,
9270 .policy = nl80211_policy,
9271 .flags = GENL_ADMIN_PERM,
41265714 9272 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9273 NL80211_FLAG_NEED_RTNL,
b23aa676 9274 },
463d0183
JB		 9275 {
9276 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9277 .doit = nl80211_wiphy_netns,
9278 .policy = nl80211_policy,
9279 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9280 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9281 NL80211_FLAG_NEED_RTNL,
463d0183 9282 },
61fa713c
HS		 9283 {
9284 .cmd = NL80211_CMD_GET_SURVEY,
9285 .policy = nl80211_policy,
9286 .dumpit = nl80211_dump_survey,
9287 },
67fbb16b
SO		 9288 {
9289 .cmd = NL80211_CMD_SET_PMKSA,
9290 .doit = nl80211_setdel_pmksa,
9291 .policy = nl80211_policy,
9292 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9293 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9294 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9295 },
9296 {
9297 .cmd = NL80211_CMD_DEL_PMKSA,
9298 .doit = nl80211_setdel_pmksa,
9299 .policy = nl80211_policy,
9300 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9301 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9302 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9303 },
9304 {
9305 .cmd = NL80211_CMD_FLUSH_PMKSA,
9306 .doit = nl80211_flush_pmksa,
9307 .policy = nl80211_policy,
9308 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9309 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9310 NL80211_FLAG_NEED_RTNL,
67fbb16b 9311 },
9588bbd5
JM		 9312 {
9313 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9314 .doit = nl80211_remain_on_channel,
9315 .policy = nl80211_policy,
9316 .flags = GENL_ADMIN_PERM,
71bbc994 9317 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9318 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9319 },
9320 {
9321 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9322 .doit = nl80211_cancel_remain_on_channel,
9323 .policy = nl80211_policy,
9324 .flags = GENL_ADMIN_PERM,
71bbc994 9325 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9326 NL80211_FLAG_NEED_RTNL,
9588bbd5 9327 },
13ae75b1
JM		 9328 {
9329 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9330 .doit = nl80211_set_tx_bitrate_mask,
9331 .policy = nl80211_policy,
9332 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9333 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9334 NL80211_FLAG_NEED_RTNL,
13ae75b1 9335 },
026331c4 9336 {
2e161f78
JB		 9337 .cmd = NL80211_CMD_REGISTER_FRAME,
9338 .doit = nl80211_register_mgmt,
026331c4
JM		 9339 .policy = nl80211_policy,
9340 .flags = GENL_ADMIN_PERM,
71bbc994 9341 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9342 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9343 },
9344 {
2e161f78
JB		 9345 .cmd = NL80211_CMD_FRAME,
9346 .doit = nl80211_tx_mgmt,
026331c4 9347 .policy = nl80211_policy,
f7ca38df 9348 .flags = GENL_ADMIN_PERM,
71bbc994 9349 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9350 NL80211_FLAG_NEED_RTNL,
9351 },
9352 {
9353 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9354 .doit = nl80211_tx_mgmt_cancel_wait,
9355 .policy = nl80211_policy,
026331c4 9356 .flags = GENL_ADMIN_PERM,
71bbc994 9357 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9358 NL80211_FLAG_NEED_RTNL,
026331c4 9359 },
ffb9eb3d
KV		 9360 {
9361 .cmd = NL80211_CMD_SET_POWER_SAVE,
9362 .doit = nl80211_set_power_save,
9363 .policy = nl80211_policy,
9364 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9365 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9366 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9367 },
9368 {
9369 .cmd = NL80211_CMD_GET_POWER_SAVE,
9370 .doit = nl80211_get_power_save,
9371 .policy = nl80211_policy,
9372 /* can be retrieved by unprivileged users */
4c476991
JB		 9373 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9374 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9375 },
d6dc1a38
JO		 9376 {
9377 .cmd = NL80211_CMD_SET_CQM,
9378 .doit = nl80211_set_cqm,
9379 .policy = nl80211_policy,
9380 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9381 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9382 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9383 },
f444de05
JB		 9384 {
9385 .cmd = NL80211_CMD_SET_CHANNEL,
9386 .doit = nl80211_set_channel,
9387 .policy = nl80211_policy,
9388 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9389 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9390 NL80211_FLAG_NEED_RTNL,
f444de05 9391 },
e8347eba
BJ		 9392 {
9393 .cmd = NL80211_CMD_SET_WDS_PEER,
9394 .doit = nl80211_set_wds_peer,
9395 .policy = nl80211_policy,
9396 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9397 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9398 NL80211_FLAG_NEED_RTNL,
e8347eba 9399 },
29cbe68c
JB		 9400 {
9401 .cmd = NL80211_CMD_JOIN_MESH,
9402 .doit = nl80211_join_mesh,
9403 .policy = nl80211_policy,
9404 .flags = GENL_ADMIN_PERM,
9405 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9406 NL80211_FLAG_NEED_RTNL,
9407 },
9408 {
9409 .cmd = NL80211_CMD_LEAVE_MESH,
9410 .doit = nl80211_leave_mesh,
9411 .policy = nl80211_policy,
9412 .flags = GENL_ADMIN_PERM,
9413 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9414 NL80211_FLAG_NEED_RTNL,
9415 },
dfb89c56 9416#ifdef CONFIG_PM
ff1b6e69
JB		 9417 {
9418 .cmd = NL80211_CMD_GET_WOWLAN,
9419 .doit = nl80211_get_wowlan,
9420 .policy = nl80211_policy,
9421 /* can be retrieved by unprivileged users */
9422 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9423 NL80211_FLAG_NEED_RTNL,
9424 },
9425 {
9426 .cmd = NL80211_CMD_SET_WOWLAN,
9427 .doit = nl80211_set_wowlan,
9428 .policy = nl80211_policy,
9429 .flags = GENL_ADMIN_PERM,
9430 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9431 NL80211_FLAG_NEED_RTNL,
9432 },
dfb89c56 9433#endif
e5497d76
JB		 9434 {
9435 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9436 .doit = nl80211_set_rekey_data,
9437 .policy = nl80211_policy,
9438 .flags = GENL_ADMIN_PERM,
9439 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9440 NL80211_FLAG_NEED_RTNL,
9441 },
109086ce
AN		 9442 {
9443 .cmd = NL80211_CMD_TDLS_MGMT,
9444 .doit = nl80211_tdls_mgmt,
9445 .policy = nl80211_policy,
9446 .flags = GENL_ADMIN_PERM,
9447 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9448 NL80211_FLAG_NEED_RTNL,
9449 },
9450 {
9451 .cmd = NL80211_CMD_TDLS_OPER,
9452 .doit = nl80211_tdls_oper,
9453 .policy = nl80211_policy,
9454 .flags = GENL_ADMIN_PERM,
9455 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9456 NL80211_FLAG_NEED_RTNL,
9457 },
28946da7
JB		 9458 {
9459 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9460 .doit = nl80211_register_unexpected_frame,
9461 .policy = nl80211_policy,
9462 .flags = GENL_ADMIN_PERM,
9463 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9464 NL80211_FLAG_NEED_RTNL,
9465 },
7f6cf311
JB		 9466 {
9467 .cmd = NL80211_CMD_PROBE_CLIENT,
9468 .doit = nl80211_probe_client,
9469 .policy = nl80211_policy,
9470 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9471 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9472 NL80211_FLAG_NEED_RTNL,
9473 },
5e760230
JB		 9474 {
9475 .cmd = NL80211_CMD_REGISTER_BEACONS,
9476 .doit = nl80211_register_beacons,
9477 .policy = nl80211_policy,
9478 .flags = GENL_ADMIN_PERM,
9479 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9480 NL80211_FLAG_NEED_RTNL,
9481 },
1d9d9213
SW		 9482 {
9483 .cmd = NL80211_CMD_SET_NOACK_MAP,
9484 .doit = nl80211_set_noack_map,
9485 .policy = nl80211_policy,
9486 .flags = GENL_ADMIN_PERM,
9487 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9488 NL80211_FLAG_NEED_RTNL,
9489 },
98104fde
JB		 9490 {
9491 .cmd = NL80211_CMD_START_P2P_DEVICE,
9492 .doit = nl80211_start_p2p_device,
9493 .policy = nl80211_policy,
9494 .flags = GENL_ADMIN_PERM,
9495 .internal_flags = NL80211_FLAG_NEED_WDEV |
9496 NL80211_FLAG_NEED_RTNL,
9497 },
9498 {
9499 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9500 .doit = nl80211_stop_p2p_device,
9501 .policy = nl80211_policy,
9502 .flags = GENL_ADMIN_PERM,
9503 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9504 NL80211_FLAG_NEED_RTNL,
9505 },
f4e583c8
AQ		 9506 {
9507 .cmd = NL80211_CMD_SET_MCAST_RATE,
9508 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 9509 .policy = nl80211_policy,
9510 .flags = GENL_ADMIN_PERM,
9511 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9512 NL80211_FLAG_NEED_RTNL,
9513 },
9514 {
9515 .cmd = NL80211_CMD_SET_MAC_ACL,
9516 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 9517 .policy = nl80211_policy,
9518 .flags = GENL_ADMIN_PERM,
9519 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9520 NL80211_FLAG_NEED_RTNL,
9521 },
04f39047
SW		 9522 {
9523 .cmd = NL80211_CMD_RADAR_DETECT,
9524 .doit = nl80211_start_radar_detection,
9525 .policy = nl80211_policy,
9526 .flags = GENL_ADMIN_PERM,
9527 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9528 NL80211_FLAG_NEED_RTNL,
9529 },
3713b4e3
JB		 9530 {
9531 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9532 .doit = nl80211_get_protocol_features,
9533 .policy = nl80211_policy,
9534 },
355199e0
JM		 9535 {
9536 .cmd = NL80211_CMD_UPDATE_FT_IES,
9537 .doit = nl80211_update_ft_ies,
9538 .policy = nl80211_policy,
9539 .flags = GENL_ADMIN_PERM,
9540 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9541 NL80211_FLAG_NEED_RTNL,
9542 },
5de17984
AS		 9543 {
9544 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9545 .doit = nl80211_crit_protocol_start,
9546 .policy = nl80211_policy,
9547 .flags = GENL_ADMIN_PERM,
9548 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9549 NL80211_FLAG_NEED_RTNL,
9550 },
9551 {
9552 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9553 .doit = nl80211_crit_protocol_stop,
9554 .policy = nl80211_policy,
9555 .flags = GENL_ADMIN_PERM,
9556 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9557 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 9558 },
9559 {
9560 .cmd = NL80211_CMD_GET_COALESCE,
9561 .doit = nl80211_get_coalesce,
9562 .policy = nl80211_policy,
9563 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9564 NL80211_FLAG_NEED_RTNL,
9565 },
9566 {
9567 .cmd = NL80211_CMD_SET_COALESCE,
9568 .doit = nl80211_set_coalesce,
9569 .policy = nl80211_policy,
9570 .flags = GENL_ADMIN_PERM,
9571 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9572 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 9573 },
9574 {
9575 .cmd = NL80211_CMD_CHANNEL_SWITCH,
9576 .doit = nl80211_channel_switch,
9577 .policy = nl80211_policy,
9578 .flags = GENL_ADMIN_PERM,
9579 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9580 NL80211_FLAG_NEED_RTNL,
9581 },
55682965 9582};
9588bbd5 9583
55682965
JB		 9584/* notification functions */
9585
9586void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9587{
9588 struct sk_buff *msg;
86e8cf98 9589 struct nl80211_dump_wiphy_state state = {};
55682965 9590
fd2120ca 9591 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 9592 if (!msg)
9593 return;
9594
86e8cf98 9595 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 9596 nlmsg_free(msg);
9597 return;
9598 }
9599
68eb5503 9600 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9601 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 9602}
9603
362a415d
JB		 9604static int nl80211_add_scan_req(struct sk_buff *msg,
9605 struct cfg80211_registered_device *rdev)
9606{
9607 struct cfg80211_scan_request *req = rdev->scan_req;
9608 struct nlattr *nest;
9609 int i;
9610
9611 if (WARN_ON(!req))
9612 return 0;
9613
9614 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9615 if (!nest)
9616 goto nla_put_failure;
9360ffd1
DM		 9617 for (i = 0; i < req->n_ssids; i++) {
9618 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9619 goto nla_put_failure;
9620 }
362a415d
JB		 9621 nla_nest_end(msg, nest);
9622
9623 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9624 if (!nest)
9625 goto nla_put_failure;
9360ffd1
DM		 9626 for (i = 0; i < req->n_channels; i++) {
9627 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9628 goto nla_put_failure;
9629 }
362a415d
JB		 9630 nla_nest_end(msg, nest);
9631
9360ffd1
DM		 9632 if (req->ie &&
9633 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9634 goto nla_put_failure;
362a415d 9635
ed473771
SL		 9636 if (req->flags)
9637 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9638
362a415d
JB		 9639 return 0;
9640 nla_put_failure:
9641 return -ENOBUFS;
9642}
9643
a538e2d5
JB		 9644static int nl80211_send_scan_msg(struct sk_buff *msg,
9645 struct cfg80211_registered_device *rdev,
fd014284 9646 struct wireless_dev *wdev,
15e47304 9647 u32 portid, u32 seq, int flags,
a538e2d5 9648 u32 cmd)
2a519311
JB		 9649{
9650 void *hdr;
9651
15e47304 9652 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9653 if (!hdr)
9654 return -1;
9655
9360ffd1 9656 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9657 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9658 wdev->netdev->ifindex)) ||
9659 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9660 goto nla_put_failure;
2a519311 9661
362a415d
JB		 9662 /* ignore errors and send incomplete event anyway */
9663 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9664
9665 return genlmsg_end(msg, hdr);
9666
9667 nla_put_failure:
9668 genlmsg_cancel(msg, hdr);
9669 return -EMSGSIZE;
9670}
9671
807f8a8c
LC		 9672static int
9673nl80211_send_sched_scan_msg(struct sk_buff *msg,
9674 struct cfg80211_registered_device *rdev,
9675 struct net_device *netdev,
15e47304 9676 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9677{
9678 void *hdr;
9679
15e47304 9680 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9681 if (!hdr)
9682 return -1;
9683
9360ffd1
DM		 9684 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9685 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9686 goto nla_put_failure;
807f8a8c
LC		 9687
9688 return genlmsg_end(msg, hdr);
9689
9690 nla_put_failure:
9691 genlmsg_cancel(msg, hdr);
9692 return -EMSGSIZE;
9693}
9694
a538e2d5 9695void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9696 struct wireless_dev *wdev)
a538e2d5
JB		 9697{
9698 struct sk_buff *msg;
9699
58050fce 9700 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9701 if (!msg)
9702 return;
9703
fd014284 9704 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9705 NL80211_CMD_TRIGGER_SCAN) < 0) {
9706 nlmsg_free(msg);
9707 return;
9708 }
9709
68eb5503 9710 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9711 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 9712}
9713
2a519311 9714void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9715 struct wireless_dev *wdev)
2a519311
JB		 9716{
9717 struct sk_buff *msg;
9718
fd2120ca 9719 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9720 if (!msg)
9721 return;
9722
fd014284 9723 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9724 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9725 nlmsg_free(msg);
9726 return;
9727 }
9728
68eb5503 9729 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9730 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 9731}
9732
9733void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9734 struct wireless_dev *wdev)
2a519311
JB		 9735{
9736 struct sk_buff *msg;
9737
fd2120ca 9738 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9739 if (!msg)
9740 return;
9741
fd014284 9742 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9743 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9744 nlmsg_free(msg);
9745 return;
9746 }
9747
68eb5503 9748 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9749 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 9750}
9751
807f8a8c
LC		 9752void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9753 struct net_device *netdev)
9754{
9755 struct sk_buff *msg;
9756
9757 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9758 if (!msg)
9759 return;
9760
9761 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9762 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9763 nlmsg_free(msg);
9764 return;
9765 }
9766
68eb5503 9767 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9768 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 9769}
9770
9771void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9772 struct net_device *netdev, u32 cmd)
9773{
9774 struct sk_buff *msg;
9775
58050fce 9776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9777 if (!msg)
9778 return;
9779
9780 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9781 nlmsg_free(msg);
9782 return;
9783 }
9784
68eb5503 9785 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9786 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 9787}
9788
73d54c9e
LR		 9789/*
9790 * This can happen on global regulatory changes or device specific settings
9791 * based on custom world regulatory domains.
9792 */
9793void nl80211_send_reg_change_event(struct regulatory_request *request)
9794{
9795 struct sk_buff *msg;
9796 void *hdr;
9797
fd2120ca 9798 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9799 if (!msg)
9800 return;
9801
9802 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9803 if (!hdr) {
9804 nlmsg_free(msg);
9805 return;
9806 }
9807
9808 /* Userspace can always count this one always being set */
9360ffd1
DM		 9809 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9810 goto nla_put_failure;
9811
9812 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9813 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9814 NL80211_REGDOM_TYPE_WORLD))
9815 goto nla_put_failure;
9816 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9817 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9818 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9819 goto nla_put_failure;
9820 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9821 request->intersect) {
9822 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9823 NL80211_REGDOM_TYPE_INTERSECTION))
9824 goto nla_put_failure;
9825 } else {
9826 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9827 NL80211_REGDOM_TYPE_COUNTRY) ||
9828 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9829 request->alpha2))
9830 goto nla_put_failure;
9831 }
9832
f4173766 9833 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9834 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9835 goto nla_put_failure;
73d54c9e 9836
3b7b72ee 9837 genlmsg_end(msg, hdr);
73d54c9e 9838
bc43b28c 9839 rcu_read_lock();
68eb5503 9840 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 9841 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 9842 rcu_read_unlock();
73d54c9e
LR		 9843
9844 return;
9845
9846nla_put_failure:
9847 genlmsg_cancel(msg, hdr);
9848 nlmsg_free(msg);
9849}
9850
6039f6d2
JM		 9851static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9852 struct net_device *netdev,
9853 const u8 *buf, size_t len,
e6d6e342 9854 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9855{
9856 struct sk_buff *msg;
9857 void *hdr;
9858
e6d6e342 9859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9860 if (!msg)
9861 return;
9862
9863 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9864 if (!hdr) {
9865 nlmsg_free(msg);
9866 return;
9867 }
9868
9360ffd1
DM		 9869 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9870 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9871 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9872 goto nla_put_failure;
6039f6d2 9873
3b7b72ee 9874 genlmsg_end(msg, hdr);
6039f6d2 9875
68eb5503 9876 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9877 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 9878 return;
9879
9880 nla_put_failure:
9881 genlmsg_cancel(msg, hdr);
9882 nlmsg_free(msg);
9883}
9884
9885void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9886 struct net_device *netdev, const u8 *buf,
9887 size_t len, gfp_t gfp)
6039f6d2
JM		 9888{
9889 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9890 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 9891}
9892
9893void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9894 struct net_device *netdev, const u8 *buf,
e6d6e342 9895 size_t len, gfp_t gfp)
6039f6d2 9896{
e6d6e342
JB		 9897 nl80211_send_mlme_event(rdev, netdev, buf, len,
9898 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 9899}
9900
53b46b84 9901void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9902 struct net_device *netdev, const u8 *buf,
9903 size_t len, gfp_t gfp)
6039f6d2
JM		 9904{
9905 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9906 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 9907}
9908
53b46b84
JM		 9909void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9910 struct net_device *netdev, const u8 *buf,
e6d6e342 9911 size_t len, gfp_t gfp)
6039f6d2
JM		 9912{
9913 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9914 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 9915}
9916
6ff57cf8
JB		 9917void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
9918 size_t len)
cf4e594e 9919{
947add36
JB		 9920 struct wireless_dev *wdev = dev->ieee80211_ptr;
9921 struct wiphy *wiphy = wdev->wiphy;
9922 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6ff57cf8
JB		 9923 const struct ieee80211_mgmt *mgmt = (void *)buf;
9924 u32 cmd;
947add36 9925
6ff57cf8
JB		 9926 if (WARN_ON(len < 2))
9927 return;
cf4e594e 9928
6ff57cf8
JB		 9929 if (ieee80211_is_deauth(mgmt->frame_control))
9930 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
9931 else
9932 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 9933
6ff57cf8
JB		 9934 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
9935 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 9936}
6ff57cf8 9937EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 9938
1b06bb40
LR		 9939static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9940 struct net_device *netdev, int cmd,
e6d6e342 9941 const u8 *addr, gfp_t gfp)
1965c853
JM		 9942{
9943 struct sk_buff *msg;
9944 void *hdr;
9945
e6d6e342 9946 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 9947 if (!msg)
9948 return;
9949
9950 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9951 if (!hdr) {
9952 nlmsg_free(msg);
9953 return;
9954 }
9955
9360ffd1
DM		 9956 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9957 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9958 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9959 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9960 goto nla_put_failure;
1965c853 9961
3b7b72ee 9962 genlmsg_end(msg, hdr);
1965c853 9963
68eb5503 9964 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 9965 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 9966 return;
9967
9968 nla_put_failure:
9969 genlmsg_cancel(msg, hdr);
9970 nlmsg_free(msg);
9971}
9972
9973void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9974 struct net_device *netdev, const u8 *addr,
9975 gfp_t gfp)
1965c853
JM		 9976{
9977 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 9978 addr, gfp);
1965c853
JM		 9979}
9980
9981void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9982 struct net_device *netdev, const u8 *addr,
9983 gfp_t gfp)
1965c853 9984{
e6d6e342
JB		 9985 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9986 addr, gfp);
1965c853
JM		 9987}
9988
b23aa676
SO		 9989void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9990 struct net_device *netdev, const u8 *bssid,
9991 const u8 *req_ie, size_t req_ie_len,
9992 const u8 *resp_ie, size_t resp_ie_len,
9993 u16 status, gfp_t gfp)
9994{
9995 struct sk_buff *msg;
9996 void *hdr;
9997
58050fce 9998 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9999 if (!msg)
10000 return;
10001
10002 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10003 if (!hdr) {
10004 nlmsg_free(msg);
10005 return;
10006 }
10007
9360ffd1
DM		 10008 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10009 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10010 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10011 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10012 (req_ie &&
10013 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10014 (resp_ie &&
10015 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10016 goto nla_put_failure;
b23aa676 10017
3b7b72ee 10018 genlmsg_end(msg, hdr);
b23aa676 10019
68eb5503 10020 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10021 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10022 return;
10023
10024 nla_put_failure:
10025 genlmsg_cancel(msg, hdr);
10026 nlmsg_free(msg);
10027
10028}
10029
10030void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10031 struct net_device *netdev, const u8 *bssid,
10032 const u8 *req_ie, size_t req_ie_len,
10033 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10034{
10035 struct sk_buff *msg;
10036 void *hdr;
10037
58050fce 10038 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10039 if (!msg)
10040 return;
10041
10042 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10043 if (!hdr) {
10044 nlmsg_free(msg);
10045 return;
10046 }
10047
9360ffd1
DM		 10048 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10049 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10050 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10051 (req_ie &&
10052 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10053 (resp_ie &&
10054 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10055 goto nla_put_failure;
b23aa676 10056
3b7b72ee 10057 genlmsg_end(msg, hdr);
b23aa676 10058
68eb5503 10059 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10060 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10061 return;
10062
10063 nla_put_failure:
10064 genlmsg_cancel(msg, hdr);
10065 nlmsg_free(msg);
10066
10067}
10068
10069void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10070 struct net_device *netdev, u16 reason,
667503dd 10071 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10072{
10073 struct sk_buff *msg;
10074 void *hdr;
10075
58050fce 10076 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10077 if (!msg)
10078 return;
10079
10080 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10081 if (!hdr) {
10082 nlmsg_free(msg);
10083 return;
10084 }
10085
9360ffd1
DM		 10086 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10087 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10088 (from_ap && reason &&
10089 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10090 (from_ap &&
10091 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10092 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10093 goto nla_put_failure;
b23aa676 10094
3b7b72ee 10095 genlmsg_end(msg, hdr);
b23aa676 10096
68eb5503 10097 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10098 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10099 return;
10100
10101 nla_put_failure:
10102 genlmsg_cancel(msg, hdr);
10103 nlmsg_free(msg);
10104
10105}
10106
04a773ad
JB		 10107void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10108 struct net_device *netdev, const u8 *bssid,
10109 gfp_t gfp)
10110{
10111 struct sk_buff *msg;
10112 void *hdr;
10113
fd2120ca 10114 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10115 if (!msg)
10116 return;
10117
10118 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10119 if (!hdr) {
10120 nlmsg_free(msg);
10121 return;
10122 }
10123
9360ffd1
DM		 10124 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10125 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10126 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10127 goto nla_put_failure;
04a773ad 10128
3b7b72ee 10129 genlmsg_end(msg, hdr);
04a773ad 10130
68eb5503 10131 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10132 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10133 return;
10134
10135 nla_put_failure:
10136 genlmsg_cancel(msg, hdr);
10137 nlmsg_free(msg);
10138}
10139
947add36
JB		 10140void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10141 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10142{
947add36
JB		 10143 struct wireless_dev *wdev = dev->ieee80211_ptr;
10144 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 10145 struct sk_buff *msg;
10146 void *hdr;
10147
947add36
JB		 10148 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10149 return;
10150
10151 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10152
c93b5e71
JC		 10153 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10154 if (!msg)
10155 return;
10156
10157 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10158 if (!hdr) {
10159 nlmsg_free(msg);
10160 return;
10161 }
10162
9360ffd1 10163 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10164 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10165 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10166 (ie_len && ie &&
10167 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10168 goto nla_put_failure;
c93b5e71 10169
3b7b72ee 10170 genlmsg_end(msg, hdr);
c93b5e71 10171
68eb5503 10172 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10173 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10174 return;
10175
10176 nla_put_failure:
10177 genlmsg_cancel(msg, hdr);
10178 nlmsg_free(msg);
10179}
947add36 10180EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10181
a3b8b056
JM		 10182void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10183 struct net_device *netdev, const u8 *addr,
10184 enum nl80211_key_type key_type, int key_id,
e6d6e342 10185 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10186{
10187 struct sk_buff *msg;
10188 void *hdr;
10189
e6d6e342 10190 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10191 if (!msg)
10192 return;
10193
10194 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10195 if (!hdr) {
10196 nlmsg_free(msg);
10197 return;
10198 }
10199
9360ffd1
DM		 10200 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10201 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10202 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10203 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10204 (key_id != -1 &&
10205 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10206 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10207 goto nla_put_failure;
a3b8b056 10208
3b7b72ee 10209 genlmsg_end(msg, hdr);
a3b8b056 10210
68eb5503 10211 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10212 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10213 return;
10214
10215 nla_put_failure:
10216 genlmsg_cancel(msg, hdr);
10217 nlmsg_free(msg);
10218}
10219
6bad8766
LR		 10220void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10221 struct ieee80211_channel *channel_before,
10222 struct ieee80211_channel *channel_after)
10223{
10224 struct sk_buff *msg;
10225 void *hdr;
10226 struct nlattr *nl_freq;
10227
fd2120ca 10228 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10229 if (!msg)
10230 return;
10231
10232 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10233 if (!hdr) {
10234 nlmsg_free(msg);
10235 return;
10236 }
10237
10238 /*
10239 * Since we are applying the beacon hint to a wiphy we know its
10240 * wiphy_idx is valid
10241 */
9360ffd1
DM		 10242 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10243 goto nla_put_failure;
6bad8766
LR		 10244
10245 /* Before */
10246 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10247 if (!nl_freq)
10248 goto nla_put_failure;
cdc89b97 10249 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10250 goto nla_put_failure;
10251 nla_nest_end(msg, nl_freq);
10252
10253 /* After */
10254 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10255 if (!nl_freq)
10256 goto nla_put_failure;
cdc89b97 10257 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10258 goto nla_put_failure;
10259 nla_nest_end(msg, nl_freq);
10260
3b7b72ee 10261 genlmsg_end(msg, hdr);
6bad8766 10262
463d0183 10263 rcu_read_lock();
68eb5503 10264 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10265 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10266 rcu_read_unlock();
6bad8766
LR		 10267
10268 return;
10269
10270nla_put_failure:
10271 genlmsg_cancel(msg, hdr);
10272 nlmsg_free(msg);
10273}
10274
9588bbd5
JM		 10275static void nl80211_send_remain_on_chan_event(
10276 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10277 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10278 struct ieee80211_channel *chan,
9588bbd5
JM		 10279 unsigned int duration, gfp_t gfp)
10280{
10281 struct sk_buff *msg;
10282 void *hdr;
10283
10284 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10285 if (!msg)
10286 return;
10287
10288 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10289 if (!hdr) {
10290 nlmsg_free(msg);
10291 return;
10292 }
10293
9360ffd1 10294 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10295 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10296 wdev->netdev->ifindex)) ||
00f53350 10297 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10298 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10299 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10300 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10301 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10302 goto nla_put_failure;
9588bbd5 10303
9360ffd1
DM		 10304 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10305 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10306 goto nla_put_failure;
9588bbd5 10307
3b7b72ee 10308 genlmsg_end(msg, hdr);
9588bbd5 10309
68eb5503 10310 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10311 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10312 return;
10313
10314 nla_put_failure:
10315 genlmsg_cancel(msg, hdr);
10316 nlmsg_free(msg);
10317}
10318
947add36
JB		 10319void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10320 struct ieee80211_channel *chan,
10321 unsigned int duration, gfp_t gfp)
9588bbd5 10322{
947add36
JB		 10323 struct wiphy *wiphy = wdev->wiphy;
10324 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10325
10326 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10327 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10328 rdev, wdev, cookie, chan,
42d97a59 10329 duration, gfp);
9588bbd5 10330}
947add36 10331EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10332
947add36
JB		 10333void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10334 struct ieee80211_channel *chan,
10335 gfp_t gfp)
9588bbd5 10336{
947add36
JB		 10337 struct wiphy *wiphy = wdev->wiphy;
10338 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10339
10340 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10341 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10342 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10343}
947add36 10344EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10345
947add36
JB		 10346void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10347 struct station_info *sinfo, gfp_t gfp)
98b62183 10348{
947add36
JB		 10349 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10350 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 10351 struct sk_buff *msg;
10352
947add36
JB		 10353 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10354
58050fce 10355 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10356 if (!msg)
10357 return;
10358
66266b3a
JL		 10359 if (nl80211_send_station(msg, 0, 0, 0,
10360 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10361 nlmsg_free(msg);
10362 return;
10363 }
10364
68eb5503 10365 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10366 NL80211_MCGRP_MLME, gfp);
98b62183 10367}
947add36 10368EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10369
947add36 10370void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10371{
947add36
JB		 10372 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10373 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 10374 struct sk_buff *msg;
10375 void *hdr;
10376
947add36
JB		 10377 trace_cfg80211_del_sta(dev, mac_addr);
10378
58050fce 10379 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10380 if (!msg)
10381 return;
10382
10383 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10384 if (!hdr) {
10385 nlmsg_free(msg);
10386 return;
10387 }
10388
9360ffd1
DM		 10389 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10390 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10391 goto nla_put_failure;
ec15e68b 10392
3b7b72ee 10393 genlmsg_end(msg, hdr);
ec15e68b 10394
68eb5503 10395 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10396 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10397 return;
10398
10399 nla_put_failure:
10400 genlmsg_cancel(msg, hdr);
10401 nlmsg_free(msg);
10402}
947add36 10403EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10404
947add36
JB		 10405void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10406 enum nl80211_connect_failed_reason reason,
10407 gfp_t gfp)
ed44a951 10408{
947add36
JB		 10409 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10410 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 10411 struct sk_buff *msg;
10412 void *hdr;
10413
10414 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10415 if (!msg)
10416 return;
10417
10418 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10419 if (!hdr) {
10420 nlmsg_free(msg);
10421 return;
10422 }
10423
10424 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10425 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10426 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10427 goto nla_put_failure;
10428
10429 genlmsg_end(msg, hdr);
10430
68eb5503 10431 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10432 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10433 return;
10434
10435 nla_put_failure:
10436 genlmsg_cancel(msg, hdr);
10437 nlmsg_free(msg);
10438}
947add36 10439EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10440
b92ab5d8
JB		 10441static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10442 const u8 *addr, gfp_t gfp)
28946da7
JB		 10443{
10444 struct wireless_dev *wdev = dev->ieee80211_ptr;
10445 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10446 struct sk_buff *msg;
10447 void *hdr;
15e47304 10448 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10449
15e47304 10450 if (!nlportid)
28946da7
JB		 10451 return false;
10452
10453 msg = nlmsg_new(100, gfp);
10454 if (!msg)
10455 return true;
10456
b92ab5d8 10457 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10458 if (!hdr) {
10459 nlmsg_free(msg);
10460 return true;
10461 }
10462
9360ffd1
DM		 10463 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10464 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10465 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10466 goto nla_put_failure;
28946da7 10467
9c90a9f6 10468 genlmsg_end(msg, hdr);
15e47304 10469 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10470 return true;
10471
10472 nla_put_failure:
10473 genlmsg_cancel(msg, hdr);
10474 nlmsg_free(msg);
10475 return true;
10476}
10477
947add36
JB		 10478bool cfg80211_rx_spurious_frame(struct net_device *dev,
10479 const u8 *addr, gfp_t gfp)
b92ab5d8 10480{
947add36
JB		 10481 struct wireless_dev *wdev = dev->ieee80211_ptr;
10482 bool ret;
10483
10484 trace_cfg80211_rx_spurious_frame(dev, addr);
10485
10486 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10487 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10488 trace_cfg80211_return_bool(false);
10489 return false;
10490 }
10491 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10492 addr, gfp);
10493 trace_cfg80211_return_bool(ret);
10494 return ret;
b92ab5d8 10495}
947add36 10496EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10497
947add36
JB		 10498bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10499 const u8 *addr, gfp_t gfp)
b92ab5d8 10500{
947add36
JB		 10501 struct wireless_dev *wdev = dev->ieee80211_ptr;
10502 bool ret;
10503
10504 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10505
10506 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10507 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10508 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10509 trace_cfg80211_return_bool(false);
10510 return false;
10511 }
10512 ret = __nl80211_unexpected_frame(dev,
10513 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10514 addr, gfp);
10515 trace_cfg80211_return_bool(ret);
10516 return ret;
b92ab5d8 10517}
947add36 10518EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 10519
2e161f78 10520int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 10521 struct wireless_dev *wdev, u32 nlportid,
804483e9 10522 int freq, int sig_dbm,
19504cf5 10523 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 10524{
71bbc994 10525 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10526 struct sk_buff *msg;
10527 void *hdr;
026331c4
JM		 10528
10529 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10530 if (!msg)
10531 return -ENOMEM;
10532
2e161f78 10533 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 10534 if (!hdr) {
10535 nlmsg_free(msg);
10536 return -ENOMEM;
10537 }
10538
9360ffd1 10539 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10540 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10541 netdev->ifindex)) ||
a838490b 10542 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10543 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10544 (sig_dbm &&
10545 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 10546 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10547 (flags &&
10548 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 10549 goto nla_put_failure;
026331c4 10550
3b7b72ee 10551 genlmsg_end(msg, hdr);
026331c4 10552
15e47304 10553 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 10554
10555 nla_put_failure:
10556 genlmsg_cancel(msg, hdr);
10557 nlmsg_free(msg);
10558 return -ENOBUFS;
10559}
10560
947add36
JB		 10561void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10562 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 10563{
947add36
JB		 10564 struct wiphy *wiphy = wdev->wiphy;
10565 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 10566 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10567 struct sk_buff *msg;
10568 void *hdr;
10569
947add36
JB		 10570 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10571
026331c4
JM		 10572 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10573 if (!msg)
10574 return;
10575
2e161f78 10576 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 10577 if (!hdr) {
10578 nlmsg_free(msg);
10579 return;
10580 }
10581
9360ffd1 10582 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10583 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10584 netdev->ifindex)) ||
a838490b 10585 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10586 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10587 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10588 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10589 goto nla_put_failure;
026331c4 10590
3b7b72ee 10591 genlmsg_end(msg, hdr);
026331c4 10592
68eb5503 10593 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10594 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 10595 return;
10596
10597 nla_put_failure:
10598 genlmsg_cancel(msg, hdr);
10599 nlmsg_free(msg);
10600}
947add36 10601EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 10602
947add36
JB		 10603void cfg80211_cqm_rssi_notify(struct net_device *dev,
10604 enum nl80211_cqm_rssi_threshold_event rssi_event,
10605 gfp_t gfp)
d6dc1a38 10606{
947add36
JB		 10607 struct wireless_dev *wdev = dev->ieee80211_ptr;
10608 struct wiphy *wiphy = wdev->wiphy;
10609 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 10610 struct sk_buff *msg;
10611 struct nlattr *pinfoattr;
10612 void *hdr;
10613
947add36
JB		 10614 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10615
58050fce 10616 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 10617 if (!msg)
10618 return;
10619
10620 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10621 if (!hdr) {
10622 nlmsg_free(msg);
10623 return;
10624 }
10625
9360ffd1 10626 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10627 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10628 goto nla_put_failure;
d6dc1a38
JO		 10629
10630 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10631 if (!pinfoattr)
10632 goto nla_put_failure;
10633
9360ffd1
DM		 10634 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10635 rssi_event))
10636 goto nla_put_failure;
d6dc1a38
JO		 10637
10638 nla_nest_end(msg, pinfoattr);
10639
3b7b72ee 10640 genlmsg_end(msg, hdr);
d6dc1a38 10641
68eb5503 10642 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10643 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 10644 return;
10645
10646 nla_put_failure:
10647 genlmsg_cancel(msg, hdr);
10648 nlmsg_free(msg);
10649}
947add36 10650EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10651
947add36
JB		 10652static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10653 struct net_device *netdev, const u8 *bssid,
10654 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10655{
10656 struct sk_buff *msg;
10657 struct nlattr *rekey_attr;
10658 void *hdr;
10659
58050fce 10660 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10661 if (!msg)
10662 return;
10663
10664 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10665 if (!hdr) {
10666 nlmsg_free(msg);
10667 return;
10668 }
10669
9360ffd1
DM		 10670 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10671 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10672 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10673 goto nla_put_failure;
e5497d76
JB		 10674
10675 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10676 if (!rekey_attr)
10677 goto nla_put_failure;
10678
9360ffd1
DM		 10679 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10680 NL80211_REPLAY_CTR_LEN, replay_ctr))
10681 goto nla_put_failure;
e5497d76
JB		 10682
10683 nla_nest_end(msg, rekey_attr);
10684
3b7b72ee 10685 genlmsg_end(msg, hdr);
e5497d76 10686
68eb5503 10687 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10688 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 10689 return;
10690
10691 nla_put_failure:
10692 genlmsg_cancel(msg, hdr);
10693 nlmsg_free(msg);
10694}
10695
947add36
JB		 10696void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10697 const u8 *replay_ctr, gfp_t gfp)
10698{
10699 struct wireless_dev *wdev = dev->ieee80211_ptr;
10700 struct wiphy *wiphy = wdev->wiphy;
10701 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10702
10703 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10704 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10705}
10706EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10707
10708static void
10709nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10710 struct net_device *netdev, int index,
10711 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10712{
10713 struct sk_buff *msg;
10714 struct nlattr *attr;
10715 void *hdr;
10716
58050fce 10717 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10718 if (!msg)
10719 return;
10720
10721 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10722 if (!hdr) {
10723 nlmsg_free(msg);
10724 return;
10725 }
10726
9360ffd1
DM		 10727 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10728 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10729 goto nla_put_failure;
c9df56b4
JM		 10730
10731 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10732 if (!attr)
10733 goto nla_put_failure;
10734
9360ffd1
DM		 10735 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10736 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10737 (preauth &&
10738 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10739 goto nla_put_failure;
c9df56b4
JM		 10740
10741 nla_nest_end(msg, attr);
10742
3b7b72ee 10743 genlmsg_end(msg, hdr);
c9df56b4 10744
68eb5503 10745 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10746 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 10747 return;
10748
10749 nla_put_failure:
10750 genlmsg_cancel(msg, hdr);
10751 nlmsg_free(msg);
10752}
10753
947add36
JB		 10754void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10755 const u8 *bssid, bool preauth, gfp_t gfp)
10756{
10757 struct wireless_dev *wdev = dev->ieee80211_ptr;
10758 struct wiphy *wiphy = wdev->wiphy;
10759 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10760
10761 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10762 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10763}
10764EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10765
10766static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10767 struct net_device *netdev,
10768 struct cfg80211_chan_def *chandef,
10769 gfp_t gfp)
5314526b
TP		 10770{
10771 struct sk_buff *msg;
10772 void *hdr;
10773
58050fce 10774 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10775 if (!msg)
10776 return;
10777
10778 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10779 if (!hdr) {
10780 nlmsg_free(msg);
10781 return;
10782 }
10783
683b6d3b
JB		 10784 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10785 goto nla_put_failure;
10786
10787 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10788 goto nla_put_failure;
5314526b
TP		 10789
10790 genlmsg_end(msg, hdr);
10791
68eb5503 10792 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10793 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 10794 return;
10795
10796 nla_put_failure:
10797 genlmsg_cancel(msg, hdr);
10798 nlmsg_free(msg);
10799}
10800
947add36
JB		 10801void cfg80211_ch_switch_notify(struct net_device *dev,
10802 struct cfg80211_chan_def *chandef)
84f10708 10803{
947add36
JB		 10804 struct wireless_dev *wdev = dev->ieee80211_ptr;
10805 struct wiphy *wiphy = wdev->wiphy;
10806 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10807
10808 trace_cfg80211_ch_switch_notify(dev, chandef);
10809
10810 wdev_lock(wdev);
10811
10812 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 10813 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 10814 wdev->iftype != NL80211_IFTYPE_ADHOC &&
10815 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
947add36
JB		 10816 goto out;
10817
10818 wdev->channel = chandef->chan;
10819 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10820out:
10821 wdev_unlock(wdev);
10822 return;
10823}
10824EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10825
10826void cfg80211_cqm_txe_notify(struct net_device *dev,
10827 const u8 *peer, u32 num_packets,
10828 u32 rate, u32 intvl, gfp_t gfp)
10829{
10830 struct wireless_dev *wdev = dev->ieee80211_ptr;
10831 struct wiphy *wiphy = wdev->wiphy;
10832 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 10833 struct sk_buff *msg;
10834 struct nlattr *pinfoattr;
10835 void *hdr;
10836
10837 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10838 if (!msg)
10839 return;
10840
10841 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10842 if (!hdr) {
10843 nlmsg_free(msg);
10844 return;
10845 }
10846
10847 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10848 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10849 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10850 goto nla_put_failure;
10851
10852 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10853 if (!pinfoattr)
10854 goto nla_put_failure;
10855
10856 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10857 goto nla_put_failure;
10858
10859 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10860 goto nla_put_failure;
10861
10862 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10863 goto nla_put_failure;
10864
10865 nla_nest_end(msg, pinfoattr);
10866
10867 genlmsg_end(msg, hdr);
10868
68eb5503 10869 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10870 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 10871 return;
10872
10873 nla_put_failure:
10874 genlmsg_cancel(msg, hdr);
10875 nlmsg_free(msg);
10876}
947add36 10877EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 10878
04f39047
SW		 10879void
10880nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10881 struct cfg80211_chan_def *chandef,
10882 enum nl80211_radar_event event,
10883 struct net_device *netdev, gfp_t gfp)
10884{
10885 struct sk_buff *msg;
10886 void *hdr;
10887
10888 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10889 if (!msg)
10890 return;
10891
10892 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10893 if (!hdr) {
10894 nlmsg_free(msg);
10895 return;
10896 }
10897
10898 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10899 goto nla_put_failure;
10900
10901 /* NOP and radar events don't need a netdev parameter */
10902 if (netdev) {
10903 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10904
10905 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10906 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10907 goto nla_put_failure;
10908 }
10909
10910 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10911 goto nla_put_failure;
10912
10913 if (nl80211_send_chandef(msg, chandef))
10914 goto nla_put_failure;
10915
9c90a9f6 10916 genlmsg_end(msg, hdr);
04f39047 10917
68eb5503 10918 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10919 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 10920 return;
10921
10922 nla_put_failure:
10923 genlmsg_cancel(msg, hdr);
10924 nlmsg_free(msg);
10925}
10926
947add36
JB		 10927void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10928 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 10929{
947add36
JB		 10930 struct wireless_dev *wdev = dev->ieee80211_ptr;
10931 struct wiphy *wiphy = wdev->wiphy;
10932 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 10933 struct sk_buff *msg;
10934 struct nlattr *pinfoattr;
10935 void *hdr;
10936
947add36
JB		 10937 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10938
58050fce 10939 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 10940 if (!msg)
10941 return;
10942
10943 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10944 if (!hdr) {
10945 nlmsg_free(msg);
10946 return;
10947 }
10948
9360ffd1 10949 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10950 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 10951 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10952 goto nla_put_failure;
c063dbf5
JB		 10953
10954 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10955 if (!pinfoattr)
10956 goto nla_put_failure;
10957
9360ffd1
DM		 10958 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10959 goto nla_put_failure;
c063dbf5
JB		 10960
10961 nla_nest_end(msg, pinfoattr);
10962
3b7b72ee 10963 genlmsg_end(msg, hdr);
c063dbf5 10964
68eb5503 10965 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10966 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 10967 return;
10968
10969 nla_put_failure:
10970 genlmsg_cancel(msg, hdr);
10971 nlmsg_free(msg);
10972}
947add36 10973EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 10974
7f6cf311
JB		 10975void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10976 u64 cookie, bool acked, gfp_t gfp)
10977{
10978 struct wireless_dev *wdev = dev->ieee80211_ptr;
10979 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10980 struct sk_buff *msg;
10981 void *hdr;
7f6cf311 10982
4ee3e063
BL		 10983 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10984
58050fce 10985 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 10986
7f6cf311
JB		 10987 if (!msg)
10988 return;
10989
10990 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10991 if (!hdr) {
10992 nlmsg_free(msg);
10993 return;
10994 }
10995
9360ffd1
DM		 10996 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10997 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10998 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10999 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11000 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11001 goto nla_put_failure;
7f6cf311 11002
9c90a9f6 11003 genlmsg_end(msg, hdr);
7f6cf311 11004
68eb5503 11005 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11006 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11007 return;
11008
11009 nla_put_failure:
11010 genlmsg_cancel(msg, hdr);
11011 nlmsg_free(msg);
11012}
11013EXPORT_SYMBOL(cfg80211_probe_status);
11014
5e760230
JB		 11015void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11016 const u8 *frame, size_t len,
37c73b5f 11017 int freq, int sig_dbm)
5e760230
JB		 11018{
11019 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11020 struct sk_buff *msg;
11021 void *hdr;
37c73b5f 11022 struct cfg80211_beacon_registration *reg;
5e760230 11023
4ee3e063
BL		 11024 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11025
37c73b5f
BG		 11026 spin_lock_bh(&rdev->beacon_registrations_lock);
11027 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11028 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11029 if (!msg) {
11030 spin_unlock_bh(&rdev->beacon_registrations_lock);
11031 return;
11032 }
5e760230 11033
37c73b5f
BG		 11034 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11035 if (!hdr)
11036 goto nla_put_failure;
5e760230 11037
37c73b5f
BG		 11038 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11039 (freq &&
11040 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11041 (sig_dbm &&
11042 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11043 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11044 goto nla_put_failure;
5e760230 11045
37c73b5f 11046 genlmsg_end(msg, hdr);
5e760230 11047
37c73b5f
BG		 11048 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11049 }
11050 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11051 return;
11052
11053 nla_put_failure:
37c73b5f
BG		 11054 spin_unlock_bh(&rdev->beacon_registrations_lock);
11055 if (hdr)
11056 genlmsg_cancel(msg, hdr);
5e760230
JB		 11057 nlmsg_free(msg);
11058}
11059EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11060
cd8f7cb4
JB		 11061#ifdef CONFIG_PM
11062void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11063 struct cfg80211_wowlan_wakeup *wakeup,
11064 gfp_t gfp)
11065{
11066 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11067 struct sk_buff *msg;
11068 void *hdr;
9c90a9f6 11069 int size = 200;
cd8f7cb4
JB		 11070
11071 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11072
11073 if (wakeup)
11074 size += wakeup->packet_present_len;
11075
11076 msg = nlmsg_new(size, gfp);
11077 if (!msg)
11078 return;
11079
11080 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11081 if (!hdr)
11082 goto free_msg;
11083
11084 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11085 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11086 goto free_msg;
11087
11088 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11089 wdev->netdev->ifindex))
11090 goto free_msg;
11091
11092 if (wakeup) {
11093 struct nlattr *reasons;
11094
11095 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
11096
11097 if (wakeup->disconnect &&
11098 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11099 goto free_msg;
11100 if (wakeup->magic_pkt &&
11101 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11102 goto free_msg;
11103 if (wakeup->gtk_rekey_failure &&
11104 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11105 goto free_msg;
11106 if (wakeup->eap_identity_req &&
11107 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11108 goto free_msg;
11109 if (wakeup->four_way_handshake &&
11110 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11111 goto free_msg;
11112 if (wakeup->rfkill_release &&
11113 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11114 goto free_msg;
11115
11116 if (wakeup->pattern_idx >= 0 &&
11117 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11118 wakeup->pattern_idx))
11119 goto free_msg;
11120
2a0e047e
JB		 11121 if (wakeup->tcp_match)
11122 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
11123
11124 if (wakeup->tcp_connlost)
11125 nla_put_flag(msg,
11126 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
11127
11128 if (wakeup->tcp_nomoretokens)
11129 nla_put_flag(msg,
11130 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
11131
cd8f7cb4
JB		 11132 if (wakeup->packet) {
11133 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11134 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11135
11136 if (!wakeup->packet_80211) {
11137 pkt_attr =
11138 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11139 len_attr =
11140 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11141 }
11142
11143 if (wakeup->packet_len &&
11144 nla_put_u32(msg, len_attr, wakeup->packet_len))
11145 goto free_msg;
11146
11147 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11148 wakeup->packet))
11149 goto free_msg;
11150 }
11151
11152 nla_nest_end(msg, reasons);
11153 }
11154
9c90a9f6 11155 genlmsg_end(msg, hdr);
cd8f7cb4 11156
68eb5503 11157 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11158 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11159 return;
11160
11161 free_msg:
11162 nlmsg_free(msg);
11163}
11164EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11165#endif
11166
3475b094
JM		 11167void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11168 enum nl80211_tdls_operation oper,
11169 u16 reason_code, gfp_t gfp)
11170{
11171 struct wireless_dev *wdev = dev->ieee80211_ptr;
11172 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11173 struct sk_buff *msg;
11174 void *hdr;
3475b094
JM		 11175
11176 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11177 reason_code);
11178
11179 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11180 if (!msg)
11181 return;
11182
11183 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11184 if (!hdr) {
11185 nlmsg_free(msg);
11186 return;
11187 }
11188
11189 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11190 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11191 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11192 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11193 (reason_code > 0 &&
11194 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11195 goto nla_put_failure;
11196
9c90a9f6 11197 genlmsg_end(msg, hdr);
3475b094 11198
68eb5503 11199 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11200 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11201 return;
11202
11203 nla_put_failure:
11204 genlmsg_cancel(msg, hdr);
11205 nlmsg_free(msg);
11206}
11207EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11208
026331c4
JM		 11209static int nl80211_netlink_notify(struct notifier_block * nb,
11210 unsigned long state,
11211 void *_notify)
11212{
11213 struct netlink_notify *notify = _notify;
11214 struct cfg80211_registered_device *rdev;
11215 struct wireless_dev *wdev;
37c73b5f 11216 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11217
11218 if (state != NETLINK_URELEASE)
11219 return NOTIFY_DONE;
11220
11221 rcu_read_lock();
11222
5e760230 11223 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 11224 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 11225 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 11226
11227 spin_lock_bh(&rdev->beacon_registrations_lock);
11228 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11229 list) {
11230 if (reg->nlportid == notify->portid) {
11231 list_del(&reg->list);
11232 kfree(reg);
11233 break;
11234 }
11235 }
11236 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 11237 }
026331c4
JM		 11238
11239 rcu_read_unlock();
11240
11241 return NOTIFY_DONE;
11242}
11243
11244static struct notifier_block nl80211_netlink_notifier = {
11245 .notifier_call = nl80211_netlink_notify,
11246};
11247
355199e0
JM		 11248void cfg80211_ft_event(struct net_device *netdev,
11249 struct cfg80211_ft_event_params *ft_event)
11250{
11251 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11252 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11253 struct sk_buff *msg;
11254 void *hdr;
355199e0
JM		 11255
11256 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11257
11258 if (!ft_event->target_ap)
11259 return;
11260
11261 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11262 if (!msg)
11263 return;
11264
11265 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
11266 if (!hdr) {
11267 nlmsg_free(msg);
11268 return;
11269 }
11270
11271 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
11272 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
11273 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
11274 if (ft_event->ies)
11275 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
11276 if (ft_event->ric_ies)
11277 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11278 ft_event->ric_ies);
11279
9c90a9f6 11280 genlmsg_end(msg, hdr);
355199e0 11281
68eb5503 11282 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11283 NL80211_MCGRP_MLME, GFP_KERNEL);
355199e0
JM		 11284}
11285EXPORT_SYMBOL(cfg80211_ft_event);
11286
5de17984
AS		 11287void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11288{
11289 struct cfg80211_registered_device *rdev;
11290 struct sk_buff *msg;
11291 void *hdr;
11292 u32 nlportid;
11293
11294 rdev = wiphy_to_dev(wdev->wiphy);
11295 if (!rdev->crit_proto_nlportid)
11296 return;
11297
11298 nlportid = rdev->crit_proto_nlportid;
11299 rdev->crit_proto_nlportid = 0;
11300
11301 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11302 if (!msg)
11303 return;
11304
11305 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11306 if (!hdr)
11307 goto nla_put_failure;
11308
11309 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11310 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11311 goto nla_put_failure;
11312
11313 genlmsg_end(msg, hdr);
11314
11315 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11316 return;
11317
11318 nla_put_failure:
11319 if (hdr)
11320 genlmsg_cancel(msg, hdr);
11321 nlmsg_free(msg);
11322
11323}
11324EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11325
55682965
JB		 11326/* initialisation/exit functions */
11327
11328int nl80211_init(void)
11329{
0d63cbb5 11330 int err;
55682965 11331
2a94fe48
JB		 11332 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11333 nl80211_mcgrps);
55682965
JB		 11334 if (err)
11335 return err;
11336
026331c4
JM		 11337 err = netlink_register_notifier(&nl80211_netlink_notifier);
11338 if (err)
11339 goto err_out;
11340
55682965
JB		 11341 return 0;
11342 err_out:
11343 genl_unregister_family(&nl80211_fam);
11344 return err;
11345}
11346
11347void nl80211_exit(void)
11348{
026331c4 11349 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11350 genl_unregister_family(&nl80211_fam);
11351}
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