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mac80211: expire mesh peers based on mesh configuration
[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
4c476991
JB		 33static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
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
89a54e48
JB		 50/* returns ERR_PTR values */
51static struct wireless_dev *
52__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 53{
89a54e48
JB		 54 struct cfg80211_registered_device *rdev;
55 struct wireless_dev *result = NULL;
56 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
57 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
58 u64 wdev_id;
59 int wiphy_idx = -1;
60 int ifidx = -1;
55682965 61
5fe231e8 62 ASSERT_RTNL();
55682965 63
89a54e48
JB		 64 if (!have_ifidx && !have_wdev_id)
65 return ERR_PTR(-EINVAL);
55682965 66
89a54e48
JB		 67 if (have_ifidx)
68 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
69 if (have_wdev_id) {
70 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
71 wiphy_idx = wdev_id >> 32;
55682965
JB		 72 }
73
89a54e48
JB		 74 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
75 struct wireless_dev *wdev;
76
77 if (wiphy_net(&rdev->wiphy) != netns)
78 continue;
79
80 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
81 continue;
82
89a54e48
JB		 83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
86 result = wdev;
87 break;
88 }
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
90 result = wdev;
91 break;
92 }
93 }
89a54e48
JB		 94
95 if (result)
96 break;
97 }
98
99 if (result)
100 return result;
101 return ERR_PTR(-ENODEV);
55682965
JB		 102}
103
a9455408 104static struct cfg80211_registered_device *
878d9ec7 105__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 106{
7fee4778
JB		 107 struct cfg80211_registered_device *rdev = NULL, *tmp;
108 struct net_device *netdev;
a9455408 109
5fe231e8 110 ASSERT_RTNL();
a9455408 111
878d9ec7 112 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 113 !attrs[NL80211_ATTR_IFINDEX] &&
114 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 115 return ERR_PTR(-EINVAL);
116
878d9ec7 117 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 118 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 119 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 120
89a54e48
JB		 121 if (attrs[NL80211_ATTR_WDEV]) {
122 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
123 struct wireless_dev *wdev;
124 bool found = false;
125
126 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
127 if (tmp) {
128 /* make sure wdev exists */
89a54e48
JB		 129 list_for_each_entry(wdev, &tmp->wdev_list, list) {
130 if (wdev->identifier != (u32)wdev_id)
131 continue;
132 found = true;
133 break;
134 }
89a54e48
JB		 135
136 if (!found)
137 tmp = NULL;
138
139 if (rdev && tmp != rdev)
140 return ERR_PTR(-EINVAL);
141 rdev = tmp;
142 }
143 }
144
878d9ec7
JB		 145 if (attrs[NL80211_ATTR_IFINDEX]) {
146 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 147 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 148 if (netdev) {
149 if (netdev->ieee80211_ptr)
150 tmp = wiphy_to_dev(
151 netdev->ieee80211_ptr->wiphy);
152 else
153 tmp = NULL;
154
155 dev_put(netdev);
156
157 /* not wireless device -- return error */
158 if (!tmp)
159 return ERR_PTR(-EINVAL);
160
161 /* mismatch -- return error */
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164
165 rdev = tmp;
a9455408 166 }
a9455408 167 }
a9455408 168
4f7eff10
JB		 169 if (!rdev)
170 return ERR_PTR(-ENODEV);
a9455408 171
4f7eff10
JB		 172 if (netns != wiphy_net(&rdev->wiphy))
173 return ERR_PTR(-ENODEV);
174
175 return rdev;
a9455408
JB		 176}
177
178/*
179 * This function returns a pointer to the driver
180 * that the genl_info item that is passed refers to.
a9455408
JB		 181 *
182 * The result of this can be a PTR_ERR and hence must
183 * be checked with IS_ERR() for errors.
184 */
185static struct cfg80211_registered_device *
4f7eff10 186cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 187{
5fe231e8 188 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 189}
190
55682965 191/* policy for the attributes */
b54452b0 192static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 193 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
194 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 195 .len = 20-1 },
31888487 196 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 197
72bdcf34 198 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 199 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 200 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
201 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
202 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
203
b9a5f8ca
JM		 204 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
205 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
206 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
207 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 208 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 209
210 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
211 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
212 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 213
e007b857
EP		 214 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
215 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 216
b9454e83 217 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 218 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
219 .len = WLAN_MAX_KEY_LEN },
220 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
221 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
222 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 223 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 224 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 225
226 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
227 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
228 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
229 .len = IEEE80211_MAX_DATA_LEN },
230 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
231 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 232 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
233 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
234 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
235 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
236 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 237 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 238 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 239 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 240 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 241 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 242 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 243
b2e1b302
LR		 244 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
245 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
246
9f1ba906
JM		 247 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
248 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
249 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 250 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
251 .len = NL80211_MAX_SUPP_RATES },
50b12f59 252 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 253
24bdd9f4 254 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 255 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 256
6c739419 257 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 258
259 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
260 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
261 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 262 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
263 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 264
265 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
266 .len = IEEE80211_MAX_SSID_LEN },
267 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
268 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 269 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 270 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 271 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 272 [NL80211_ATTR_STA_FLAGS2] = {
273 .len = sizeof(struct nl80211_sta_flag_update),
274 },
3f77316c 275 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 276 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
277 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 278 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
279 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
280 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 281 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 282 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 283 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
284 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 285 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
286 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 287 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 288 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_DATA_LEN },
290 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 291 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 292 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 293 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 294 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 295 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
296 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 297 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 298 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
299 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 300 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 301 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 302 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 303 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 304 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 305 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 306 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 307 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 308 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 309 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 313 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 314 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 315 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 316 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
317 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
318 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
319 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
320 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 321 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 322 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 324 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 325 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
326 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
327 .len = NL80211_HT_CAPABILITY_LEN
328 },
1d9d9213 329 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 330 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 331 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 332 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 333 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 334 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 335 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 336 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 337 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
338 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 339 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
340 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 341 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
342 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 343 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 344 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
346 .len = NL80211_VHT_CAPABILITY_LEN,
347 },
355199e0
JM		 348 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
349 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
350 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 351 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
55682965
JB		 352};
353
e31b8213 354/* policy for the key attributes */
b54452b0 355static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 356 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 357 [NL80211_KEY_IDX] = { .type = NLA_U8 },
358 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 359 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 360 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
361 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 362 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 363 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
364};
365
366/* policy for the key default flags */
367static const struct nla_policy
368nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
369 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
370 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 371};
372
ff1b6e69
JB		 373/* policy for WoWLAN attributes */
374static const struct nla_policy
375nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
376 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
377 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
378 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
379 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 380 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
381 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
382 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
383 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 384 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
385};
386
387static const struct nla_policy
388nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
389 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
390 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
391 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
392 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
393 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
394 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
395 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
396 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
397 },
398 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
399 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
400 },
401 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
402 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
403 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 404};
405
e5497d76
JB		 406/* policy for GTK rekey offload attributes */
407static const struct nla_policy
408nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
409 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
410 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
411 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
412};
413
a1f1c21c
LC		 414static const struct nla_policy
415nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 416 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 417 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 418 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 419};
420
97990a06
JB		 421static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
422 struct netlink_callback *cb,
423 struct cfg80211_registered_device **rdev,
424 struct wireless_dev **wdev)
a043897a 425{
97990a06 426 int err;
a043897a 427
97990a06 428 rtnl_lock();
a043897a 429
97990a06
JB		 430 if (!cb->args[0]) {
431 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
432 nl80211_fam.attrbuf, nl80211_fam.maxattr,
433 nl80211_policy);
434 if (err)
435 goto out_unlock;
67748893 436
97990a06
JB		 437 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
438 nl80211_fam.attrbuf);
439 if (IS_ERR(*wdev)) {
440 err = PTR_ERR(*wdev);
441 goto out_unlock;
442 }
443 *rdev = wiphy_to_dev((*wdev)->wiphy);
444 cb->args[0] = (*rdev)->wiphy_idx;
445 cb->args[1] = (*wdev)->identifier;
446 } else {
447 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0]);
448 struct wireless_dev *tmp;
67748893 449
97990a06
JB		 450 if (!wiphy) {
451 err = -ENODEV;
452 goto out_unlock;
453 }
454 *rdev = wiphy_to_dev(wiphy);
455 *wdev = NULL;
67748893 456
97990a06
JB		 457 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
458 if (tmp->identifier == cb->args[1]) {
459 *wdev = tmp;
460 break;
461 }
462 }
67748893 463
97990a06
JB		 464 if (!*wdev) {
465 err = -ENODEV;
466 goto out_unlock;
467 }
67748893
JB		 468 }
469
67748893 470 return 0;
97990a06 471 out_unlock:
67748893
JB		 472 rtnl_unlock();
473 return err;
474}
475
97990a06 476static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 477{
67748893
JB		 478 rtnl_unlock();
479}
480
f4a11bb0
JB		 481/* IE validation */
482static bool is_valid_ie_attr(const struct nlattr *attr)
483{
484 const u8 *pos;
485 int len;
486
487 if (!attr)
488 return true;
489
490 pos = nla_data(attr);
491 len = nla_len(attr);
492
493 while (len) {
494 u8 elemlen;
495
496 if (len < 2)
497 return false;
498 len -= 2;
499
500 elemlen = pos[1];
501 if (elemlen > len)
502 return false;
503
504 len -= elemlen;
505 pos += 2 + elemlen;
506 }
507
508 return true;
509}
510
55682965 511/* message building helper */
15e47304 512static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 513 int flags, u8 cmd)
514{
515 /* since there is no private header just add the generic one */
15e47304 516 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 517}
518
5dab3b8a 519static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 520 struct ieee80211_channel *chan,
521 bool large)
5dab3b8a 522{
9360ffd1
DM		 523 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
524 chan->center_freq))
525 goto nla_put_failure;
5dab3b8a 526
9360ffd1
DM		 527 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
528 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
529 goto nla_put_failure;
530 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
531 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
532 goto nla_put_failure;
533 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
534 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
535 goto nla_put_failure;
cdc89b97
JB		 536 if (chan->flags & IEEE80211_CHAN_RADAR) {
537 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
538 goto nla_put_failure;
539 if (large) {
540 u32 time;
541
542 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
543
544 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
545 chan->dfs_state))
546 goto nla_put_failure;
547 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
548 time))
549 goto nla_put_failure;
550 }
551 }
5dab3b8a 552
fe1abafd
JB		 553 if (large) {
554 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
555 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
556 goto nla_put_failure;
557 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
558 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
559 goto nla_put_failure;
560 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
561 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
562 goto nla_put_failure;
563 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
564 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
565 goto nla_put_failure;
566 }
567
9360ffd1
DM		 568 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
569 DBM_TO_MBM(chan->max_power)))
570 goto nla_put_failure;
5dab3b8a
LR		 571
572 return 0;
573
574 nla_put_failure:
575 return -ENOBUFS;
576}
577
55682965
JB		 578/* netlink command implementations */
579
b9454e83
JB		 580struct key_parse {
581 struct key_params p;
582 int idx;
e31b8213 583 int type;
b9454e83 584 bool def, defmgmt;
dbd2fd65 585 bool def_uni, def_multi;
b9454e83
JB		 586};
587
588static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
589{
590 struct nlattr *tb[NL80211_KEY_MAX + 1];
591 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
592 nl80211_key_policy);
593 if (err)
594 return err;
595
596 k->def = !!tb[NL80211_KEY_DEFAULT];
597 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
598
dbd2fd65
JB		 599 if (k->def) {
600 k->def_uni = true;
601 k->def_multi = true;
602 }
603 if (k->defmgmt)
604 k->def_multi = true;
605
b9454e83
JB		 606 if (tb[NL80211_KEY_IDX])
607 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
608
609 if (tb[NL80211_KEY_DATA]) {
610 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
611 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
612 }
613
614 if (tb[NL80211_KEY_SEQ]) {
615 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
616 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
617 }
618
619 if (tb[NL80211_KEY_CIPHER])
620 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
621
e31b8213
JB		 622 if (tb[NL80211_KEY_TYPE]) {
623 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
624 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
625 return -EINVAL;
626 }
627
dbd2fd65
JB		 628 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
629 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 630 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
631 tb[NL80211_KEY_DEFAULT_TYPES],
632 nl80211_key_default_policy);
dbd2fd65
JB		 633 if (err)
634 return err;
635
636 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
637 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
638 }
639
b9454e83
JB		 640 return 0;
641}
642
643static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
644{
645 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
646 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
647 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
648 }
649
650 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
651 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
652 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
653 }
654
655 if (info->attrs[NL80211_ATTR_KEY_IDX])
656 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
657
658 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
659 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
660
661 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
662 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
663
dbd2fd65
JB		 664 if (k->def) {
665 k->def_uni = true;
666 k->def_multi = true;
667 }
668 if (k->defmgmt)
669 k->def_multi = true;
670
e31b8213
JB		 671 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
672 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
673 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
674 return -EINVAL;
675 }
676
dbd2fd65
JB		 677 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
678 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
679 int err = nla_parse_nested(
680 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
681 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
682 nl80211_key_default_policy);
683 if (err)
684 return err;
685
686 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
687 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
688 }
689
b9454e83
JB		 690 return 0;
691}
692
693static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
694{
695 int err;
696
697 memset(k, 0, sizeof(*k));
698 k->idx = -1;
e31b8213 699 k->type = -1;
b9454e83
JB		 700
701 if (info->attrs[NL80211_ATTR_KEY])
702 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
703 else
704 err = nl80211_parse_key_old(info, k);
705
706 if (err)
707 return err;
708
709 if (k->def && k->defmgmt)
710 return -EINVAL;
711
dbd2fd65
JB		 712 if (k->defmgmt) {
713 if (k->def_uni || !k->def_multi)
714 return -EINVAL;
715 }
716
b9454e83
JB		 717 if (k->idx != -1) {
718 if (k->defmgmt) {
719 if (k->idx < 4 || k->idx > 5)
720 return -EINVAL;
721 } else if (k->def) {
722 if (k->idx < 0 || k->idx > 3)
723 return -EINVAL;
724 } else {
725 if (k->idx < 0 || k->idx > 5)
726 return -EINVAL;
727 }
728 }
729
730 return 0;
731}
732
fffd0934
JB		 733static struct cfg80211_cached_keys *
734nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 735 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 736{
737 struct key_parse parse;
738 struct nlattr *key;
739 struct cfg80211_cached_keys *result;
740 int rem, err, def = 0;
741
742 result = kzalloc(sizeof(*result), GFP_KERNEL);
743 if (!result)
744 return ERR_PTR(-ENOMEM);
745
746 result->def = -1;
747 result->defmgmt = -1;
748
749 nla_for_each_nested(key, keys, rem) {
750 memset(&parse, 0, sizeof(parse));
751 parse.idx = -1;
752
753 err = nl80211_parse_key_new(key, &parse);
754 if (err)
755 goto error;
756 err = -EINVAL;
757 if (!parse.p.key)
758 goto error;
759 if (parse.idx < 0 || parse.idx > 4)
760 goto error;
761 if (parse.def) {
762 if (def)
763 goto error;
764 def = 1;
765 result->def = parse.idx;
dbd2fd65
JB		 766 if (!parse.def_uni || !parse.def_multi)
767 goto error;
fffd0934
JB		 768 } else if (parse.defmgmt)
769 goto error;
770 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 771 parse.idx, false, NULL);
fffd0934
JB		 772 if (err)
773 goto error;
774 result->params[parse.idx].cipher = parse.p.cipher;
775 result->params[parse.idx].key_len = parse.p.key_len;
776 result->params[parse.idx].key = result->data[parse.idx];
777 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 778
779 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
780 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
781 if (no_ht)
782 *no_ht = true;
783 }
fffd0934
JB		 784 }
785
786 return result;
787 error:
788 kfree(result);
789 return ERR_PTR(err);
790}
791
792static int nl80211_key_allowed(struct wireless_dev *wdev)
793{
794 ASSERT_WDEV_LOCK(wdev);
795
fffd0934
JB		 796 switch (wdev->iftype) {
797 case NL80211_IFTYPE_AP:
798 case NL80211_IFTYPE_AP_VLAN:
074ac8df 799 case NL80211_IFTYPE_P2P_GO:
ff973af7 800 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 801 break;
802 case NL80211_IFTYPE_ADHOC:
fffd0934 803 case NL80211_IFTYPE_STATION:
074ac8df 804 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 805 if (!wdev->current_bss)
fffd0934
JB		 806 return -ENOLINK;
807 break;
808 default:
809 return -EINVAL;
810 }
811
812 return 0;
813}
814
7527a782
JB		 815static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
816{
817 struct nlattr *nl_modes = nla_nest_start(msg, attr);
818 int i;
819
820 if (!nl_modes)
821 goto nla_put_failure;
822
823 i = 0;
824 while (ifmodes) {
9360ffd1
DM		 825 if ((ifmodes & 1) && nla_put_flag(msg, i))
826 goto nla_put_failure;
7527a782
JB		 827 ifmodes >>= 1;
828 i++;
829 }
830
831 nla_nest_end(msg, nl_modes);
832 return 0;
833
834nla_put_failure:
835 return -ENOBUFS;
836}
837
838static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 839 struct sk_buff *msg,
840 bool large)
7527a782
JB		 841{
842 struct nlattr *nl_combis;
843 int i, j;
844
845 nl_combis = nla_nest_start(msg,
846 NL80211_ATTR_INTERFACE_COMBINATIONS);
847 if (!nl_combis)
848 goto nla_put_failure;
849
850 for (i = 0; i < wiphy->n_iface_combinations; i++) {
851 const struct ieee80211_iface_combination *c;
852 struct nlattr *nl_combi, *nl_limits;
853
854 c = &wiphy->iface_combinations[i];
855
856 nl_combi = nla_nest_start(msg, i + 1);
857 if (!nl_combi)
858 goto nla_put_failure;
859
860 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
861 if (!nl_limits)
862 goto nla_put_failure;
863
864 for (j = 0; j < c->n_limits; j++) {
865 struct nlattr *nl_limit;
866
867 nl_limit = nla_nest_start(msg, j + 1);
868 if (!nl_limit)
869 goto nla_put_failure;
9360ffd1
DM		 870 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
871 c->limits[j].max))
872 goto nla_put_failure;
7527a782
JB		 873 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
874 c->limits[j].types))
875 goto nla_put_failure;
876 nla_nest_end(msg, nl_limit);
877 }
878
879 nla_nest_end(msg, nl_limits);
880
9360ffd1
DM		 881 if (c->beacon_int_infra_match &&
882 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
883 goto nla_put_failure;
884 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
885 c->num_different_channels) ||
886 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
887 c->max_interfaces))
888 goto nla_put_failure;
cdc89b97
JB		 889 if (large &&
890 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
891 c->radar_detect_widths))
892 goto nla_put_failure;
7527a782
JB		 893
894 nla_nest_end(msg, nl_combi);
895 }
896
897 nla_nest_end(msg, nl_combis);
898
899 return 0;
900nla_put_failure:
901 return -ENOBUFS;
902}
903
3713b4e3 904#ifdef CONFIG_PM
b56cf720
JB		 905static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
906 struct sk_buff *msg)
907{
964dc9e2 908 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 909 struct nlattr *nl_tcp;
910
911 if (!tcp)
912 return 0;
913
914 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
915 if (!nl_tcp)
916 return -ENOBUFS;
917
918 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
919 tcp->data_payload_max))
920 return -ENOBUFS;
921
922 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
923 tcp->data_payload_max))
924 return -ENOBUFS;
925
926 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
927 return -ENOBUFS;
928
929 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
930 sizeof(*tcp->tok), tcp->tok))
931 return -ENOBUFS;
932
933 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
934 tcp->data_interval_max))
935 return -ENOBUFS;
936
937 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
938 tcp->wake_payload_max))
939 return -ENOBUFS;
940
941 nla_nest_end(msg, nl_tcp);
942 return 0;
943}
944
3713b4e3 945static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 946 struct cfg80211_registered_device *dev,
947 bool large)
55682965 948{
3713b4e3 949 struct nlattr *nl_wowlan;
55682965 950
964dc9e2 951 if (!dev->wiphy.wowlan)
3713b4e3 952 return 0;
55682965 953
3713b4e3
JB		 954 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
955 if (!nl_wowlan)
956 return -ENOBUFS;
9360ffd1 957
964dc9e2 958 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 959 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
964dc9e2 960 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 961 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
964dc9e2 962 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 963 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
964dc9e2 964 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 965 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
964dc9e2 966 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 967 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
964dc9e2 968 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 969 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
964dc9e2 970 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 971 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
964dc9e2 972 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 973 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
974 return -ENOBUFS;
9360ffd1 975
964dc9e2 976 if (dev->wiphy.wowlan->n_patterns) {
3713b4e3 977 struct nl80211_wowlan_pattern_support pat = {
964dc9e2
JB		 978 .max_patterns = dev->wiphy.wowlan->n_patterns,
979 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
980 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
981 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
3713b4e3 982 };
9360ffd1 983
3713b4e3
JB		 984 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
985 sizeof(pat), &pat))
986 return -ENOBUFS;
987 }
9360ffd1 988
b56cf720
JB		 989 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
990 return -ENOBUFS;
991
3713b4e3 992 nla_nest_end(msg, nl_wowlan);
9360ffd1 993
3713b4e3
JB		 994 return 0;
995}
996#endif
9360ffd1 997
3713b4e3
JB		 998static int nl80211_send_band_rateinfo(struct sk_buff *msg,
999 struct ieee80211_supported_band *sband)
1000{
1001 struct nlattr *nl_rates, *nl_rate;
1002 struct ieee80211_rate *rate;
1003 int i;
87bbbe22 1004
3713b4e3
JB		 1005 /* add HT info */
1006 if (sband->ht_cap.ht_supported &&
1007 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1008 sizeof(sband->ht_cap.mcs),
1009 &sband->ht_cap.mcs) ||
1010 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1011 sband->ht_cap.cap) ||
1012 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1013 sband->ht_cap.ampdu_factor) ||
1014 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1015 sband->ht_cap.ampdu_density)))
1016 return -ENOBUFS;
afe0cbf8 1017
3713b4e3
JB		 1018 /* add VHT info */
1019 if (sband->vht_cap.vht_supported &&
1020 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1021 sizeof(sband->vht_cap.vht_mcs),
1022 &sband->vht_cap.vht_mcs) ||
1023 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1024 sband->vht_cap.cap)))
1025 return -ENOBUFS;
f59ac048 1026
3713b4e3
JB		 1027 /* add bitrates */
1028 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1029 if (!nl_rates)
1030 return -ENOBUFS;
ee688b00 1031
3713b4e3
JB		 1032 for (i = 0; i < sband->n_bitrates; i++) {
1033 nl_rate = nla_nest_start(msg, i);
1034 if (!nl_rate)
1035 return -ENOBUFS;
ee688b00 1036
3713b4e3
JB		 1037 rate = &sband->bitrates[i];
1038 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1039 rate->bitrate))
1040 return -ENOBUFS;
1041 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1042 nla_put_flag(msg,
1043 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1044 return -ENOBUFS;
ee688b00 1045
3713b4e3
JB		 1046 nla_nest_end(msg, nl_rate);
1047 }
d51626df 1048
3713b4e3 1049 nla_nest_end(msg, nl_rates);
bf0c111e 1050
3713b4e3
JB		 1051 return 0;
1052}
ee688b00 1053
3713b4e3
JB		 1054static int
1055nl80211_send_mgmt_stypes(struct sk_buff *msg,
1056 const struct ieee80211_txrx_stypes *mgmt_stypes)
1057{
1058 u16 stypes;
1059 struct nlattr *nl_ftypes, *nl_ifs;
1060 enum nl80211_iftype ift;
1061 int i;
ee688b00 1062
3713b4e3
JB		 1063 if (!mgmt_stypes)
1064 return 0;
5dab3b8a 1065
3713b4e3
JB		 1066 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1067 if (!nl_ifs)
1068 return -ENOBUFS;
e2f367f2 1069
3713b4e3
JB		 1070 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1071 nl_ftypes = nla_nest_start(msg, ift);
1072 if (!nl_ftypes)
1073 return -ENOBUFS;
1074 i = 0;
1075 stypes = mgmt_stypes[ift].tx;
1076 while (stypes) {
1077 if ((stypes & 1) &&
1078 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1079 (i << 4) | IEEE80211_FTYPE_MGMT))
1080 return -ENOBUFS;
1081 stypes >>= 1;
1082 i++;
ee688b00 1083 }
3713b4e3
JB		 1084 nla_nest_end(msg, nl_ftypes);
1085 }
ee688b00 1086
3713b4e3 1087 nla_nest_end(msg, nl_ifs);
ee688b00 1088
3713b4e3
JB		 1089 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1090 if (!nl_ifs)
1091 return -ENOBUFS;
ee688b00 1092
3713b4e3
JB		 1093 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1094 nl_ftypes = nla_nest_start(msg, ift);
1095 if (!nl_ftypes)
1096 return -ENOBUFS;
1097 i = 0;
1098 stypes = mgmt_stypes[ift].rx;
1099 while (stypes) {
1100 if ((stypes & 1) &&
1101 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1102 (i << 4) | IEEE80211_FTYPE_MGMT))
1103 return -ENOBUFS;
1104 stypes >>= 1;
1105 i++;
1106 }
1107 nla_nest_end(msg, nl_ftypes);
1108 }
1109 nla_nest_end(msg, nl_ifs);
ee688b00 1110
3713b4e3
JB		 1111 return 0;
1112}
ee688b00 1113
3713b4e3
JB		 1114static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1115 struct sk_buff *msg, u32 portid, u32 seq,
1116 int flags, bool split, long *split_start,
1117 long *band_start, long *chan_start)
1118{
1119 void *hdr;
1120 struct nlattr *nl_bands, *nl_band;
1121 struct nlattr *nl_freqs, *nl_freq;
1122 struct nlattr *nl_cmds;
1123 enum ieee80211_band band;
1124 struct ieee80211_channel *chan;
1125 int i;
1126 const struct ieee80211_txrx_stypes *mgmt_stypes =
1127 dev->wiphy.mgmt_stypes;
1128 long start = 0, start_chan = 0, start_band = 0;
fe1abafd 1129 u32 features;
ee688b00 1130
3713b4e3
JB		 1131 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1132 if (!hdr)
1133 return -ENOBUFS;
ee688b00 1134
3713b4e3
JB		 1135 /* allow always using the variables */
1136 if (!split) {
1137 split_start = &start;
1138 band_start = &start_band;
1139 chan_start = &start_chan;
ee688b00 1140 }
ee688b00 1141
3713b4e3
JB		 1142 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1143 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1144 wiphy_name(&dev->wiphy)) ||
1145 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1146 cfg80211_rdev_list_generation))
8fdc621d
JB		 1147 goto nla_put_failure;
1148
3713b4e3
JB		 1149 switch (*split_start) {
1150 case 0:
1151 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1152 dev->wiphy.retry_short) ||
1153 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1154 dev->wiphy.retry_long) ||
1155 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1156 dev->wiphy.frag_threshold) ||
1157 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1158 dev->wiphy.rts_threshold) ||
1159 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1160 dev->wiphy.coverage_class) ||
1161 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1162 dev->wiphy.max_scan_ssids) ||
1163 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1164 dev->wiphy.max_sched_scan_ssids) ||
1165 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1166 dev->wiphy.max_scan_ie_len) ||
1167 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1168 dev->wiphy.max_sched_scan_ie_len) ||
1169 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1170 dev->wiphy.max_match_sets))
9360ffd1 1171 goto nla_put_failure;
3713b4e3
JB		 1172
1173 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1174 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1175 goto nla_put_failure;
3713b4e3
JB		 1176 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1177 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1178 goto nla_put_failure;
1179 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1180 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1181 goto nla_put_failure;
1182 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1183 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1184 goto nla_put_failure;
1185 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1186 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1187 goto nla_put_failure;
1188 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1189 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1190 goto nla_put_failure;
8fdc621d 1191
3713b4e3
JB		 1192 (*split_start)++;
1193 if (split)
1194 break;
1195 case 1:
1196 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1197 sizeof(u32) * dev->wiphy.n_cipher_suites,
1198 dev->wiphy.cipher_suites))
1199 goto nla_put_failure;
4745fc09 1200
3713b4e3
JB		 1201 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1202 dev->wiphy.max_num_pmkids))
1203 goto nla_put_failure;
b23aa676 1204
3713b4e3
JB		 1205 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1206 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1207 goto nla_put_failure;
b23aa676 1208
3713b4e3
JB		 1209 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1210 dev->wiphy.available_antennas_tx) ||
1211 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1212 dev->wiphy.available_antennas_rx))
9360ffd1 1213 goto nla_put_failure;
b23aa676 1214
3713b4e3
JB		 1215 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1216 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1217 dev->wiphy.probe_resp_offload))
1218 goto nla_put_failure;
8fdc621d 1219
3713b4e3
JB		 1220 if ((dev->wiphy.available_antennas_tx ||
1221 dev->wiphy.available_antennas_rx) &&
1222 dev->ops->get_antenna) {
1223 u32 tx_ant = 0, rx_ant = 0;
1224 int res;
1225 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1226 if (!res) {
1227 if (nla_put_u32(msg,
1228 NL80211_ATTR_WIPHY_ANTENNA_TX,
1229 tx_ant) ||
1230 nla_put_u32(msg,
1231 NL80211_ATTR_WIPHY_ANTENNA_RX,
1232 rx_ant))
1233 goto nla_put_failure;
1234 }
1235 }
a293911d 1236
3713b4e3
JB		 1237 (*split_start)++;
1238 if (split)
1239 break;
1240 case 2:
1241 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1242 dev->wiphy.interface_modes))
1243 goto nla_put_failure;
1244 (*split_start)++;
1245 if (split)
1246 break;
1247 case 3:
1248 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1249 if (!nl_bands)
1250 goto nla_put_failure;
f7ca38df 1251
3713b4e3
JB		 1252 for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
1253 struct ieee80211_supported_band *sband;
2e161f78 1254
3713b4e3 1255 sband = dev->wiphy.bands[band];
2e161f78 1256
3713b4e3
JB		 1257 if (!sband)
1258 continue;
1259
1260 nl_band = nla_nest_start(msg, band);
1261 if (!nl_band)
2e161f78 1262 goto nla_put_failure;
3713b4e3
JB		 1263
1264 switch (*chan_start) {
1265 case 0:
1266 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1267 goto nla_put_failure;
3713b4e3
JB		 1268 (*chan_start)++;
1269 if (split)
1270 break;
1271 default:
1272 /* add frequencies */
1273 nl_freqs = nla_nest_start(
1274 msg, NL80211_BAND_ATTR_FREQS);
1275 if (!nl_freqs)
1276 goto nla_put_failure;
1277
1278 for (i = *chan_start - 1;
1279 i < sband->n_channels;
1280 i++) {
1281 nl_freq = nla_nest_start(msg, i);
1282 if (!nl_freq)
1283 goto nla_put_failure;
1284
1285 chan = &sband->channels[i];
1286
cdc89b97
JB		 1287 if (nl80211_msg_put_channel(msg, chan,
1288 split))
3713b4e3
JB		 1289 goto nla_put_failure;
1290
1291 nla_nest_end(msg, nl_freq);
1292 if (split)
1293 break;
1294 }
1295 if (i < sband->n_channels)
1296 *chan_start = i + 2;
1297 else
1298 *chan_start = 0;
1299 nla_nest_end(msg, nl_freqs);
1300 }
1301
1302 nla_nest_end(msg, nl_band);
1303
1304 if (split) {
1305 /* start again here */
1306 if (*chan_start)
1307 band--;
1308 break;
2e161f78 1309 }
2e161f78 1310 }
3713b4e3 1311 nla_nest_end(msg, nl_bands);
2e161f78 1312
3713b4e3
JB		 1313 if (band < IEEE80211_NUM_BANDS)
1314 *band_start = band + 1;
1315 else
1316 *band_start = 0;
74b70a4e 1317
3713b4e3
JB		 1318 /* if bands & channels are done, continue outside */
1319 if (*band_start == 0 && *chan_start == 0)
1320 (*split_start)++;
1321 if (split)
1322 break;
1323 case 4:
1324 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1325 if (!nl_cmds)
2e161f78
JB		 1326 goto nla_put_failure;
1327
3713b4e3
JB		 1328 i = 0;
1329#define CMD(op, n) \
1330 do { \
1331 if (dev->ops->op) { \
1332 i++; \
1333 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1334 goto nla_put_failure; \
1335 } \
1336 } while (0)
1337
1338 CMD(add_virtual_intf, NEW_INTERFACE);
1339 CMD(change_virtual_intf, SET_INTERFACE);
1340 CMD(add_key, NEW_KEY);
1341 CMD(start_ap, START_AP);
1342 CMD(add_station, NEW_STATION);
1343 CMD(add_mpath, NEW_MPATH);
1344 CMD(update_mesh_config, SET_MESH_CONFIG);
1345 CMD(change_bss, SET_BSS);
1346 CMD(auth, AUTHENTICATE);
1347 CMD(assoc, ASSOCIATE);
1348 CMD(deauth, DEAUTHENTICATE);
1349 CMD(disassoc, DISASSOCIATE);
1350 CMD(join_ibss, JOIN_IBSS);
1351 CMD(join_mesh, JOIN_MESH);
1352 CMD(set_pmksa, SET_PMKSA);
1353 CMD(del_pmksa, DEL_PMKSA);
1354 CMD(flush_pmksa, FLUSH_PMKSA);
1355 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1356 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1357 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1358 CMD(mgmt_tx, FRAME);
1359 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1360 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1361 i++;
1362 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1363 goto nla_put_failure;
2e161f78 1364 }
3713b4e3
JB		 1365 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1366 dev->ops->join_mesh) {
1367 i++;
1368 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1369 goto nla_put_failure;
1370 }
1371 CMD(set_wds_peer, SET_WDS_PEER);
1372 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1373 CMD(tdls_mgmt, TDLS_MGMT);
1374 CMD(tdls_oper, TDLS_OPER);
1375 }
1376 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1377 CMD(sched_scan_start, START_SCHED_SCAN);
1378 CMD(probe_client, PROBE_CLIENT);
1379 CMD(set_noack_map, SET_NOACK_MAP);
1380 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1381 i++;
1382 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1383 goto nla_put_failure;
1384 }
1385 CMD(start_p2p_device, START_P2P_DEVICE);
1386 CMD(set_mcast_rate, SET_MCAST_RATE);
5de17984
AS		 1387 if (split) {
1388 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1389 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1390 }
2e161f78 1391
3713b4e3
JB		 1392#ifdef CONFIG_NL80211_TESTMODE
1393 CMD(testmode_cmd, TESTMODE);
1394#endif
ff1b6e69 1395
3713b4e3 1396#undef CMD
ff1b6e69 1397
3713b4e3
JB		 1398 if (dev->ops->connect || dev->ops->auth) {
1399 i++;
1400 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1401 goto nla_put_failure;
ff1b6e69
JB		 1402 }
1403
3713b4e3
JB		 1404 if (dev->ops->disconnect || dev->ops->deauth) {
1405 i++;
1406 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1407 goto nla_put_failure;
1408 }
1409
1410 nla_nest_end(msg, nl_cmds);
1411 (*split_start)++;
1412 if (split)
1413 break;
1414 case 5:
1415 if (dev->ops->remain_on_channel &&
1416 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1417 nla_put_u32(msg,
1418 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1419 dev->wiphy.max_remain_on_channel_duration))
1420 goto nla_put_failure;
1421
1422 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1423 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1424 goto nla_put_failure;
1425
1426 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1427 goto nla_put_failure;
1428 (*split_start)++;
1429 if (split)
1430 break;
1431 case 6:
1432#ifdef CONFIG_PM
b56cf720 1433 if (nl80211_send_wowlan(msg, dev, split))
3713b4e3
JB		 1434 goto nla_put_failure;
1435 (*split_start)++;
1436 if (split)
1437 break;
1438#else
1439 (*split_start)++;
dfb89c56 1440#endif
3713b4e3
JB		 1441 case 7:
1442 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1443 dev->wiphy.software_iftypes))
1444 goto nla_put_failure;
ff1b6e69 1445
cdc89b97 1446 if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
3713b4e3 1447 goto nla_put_failure;
7527a782 1448
3713b4e3
JB		 1449 (*split_start)++;
1450 if (split)
1451 break;
1452 case 8:
1453 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1454 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1455 dev->wiphy.ap_sme_capa))
1456 goto nla_put_failure;
7527a782 1457
fe1abafd
JB		 1458 features = dev->wiphy.features;
1459 /*
1460 * We can only add the per-channel limit information if the
1461 * dump is split, otherwise it makes it too big. Therefore
1462 * only advertise it in that case.
1463 */
1464 if (split)
1465 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1466 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1467 goto nla_put_failure;
562a7480 1468
3713b4e3
JB		 1469 if (dev->wiphy.ht_capa_mod_mask &&
1470 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1471 sizeof(*dev->wiphy.ht_capa_mod_mask),
1472 dev->wiphy.ht_capa_mod_mask))
1473 goto nla_put_failure;
1f074bd8 1474
3713b4e3
JB		 1475 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1476 dev->wiphy.max_acl_mac_addrs &&
1477 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1478 dev->wiphy.max_acl_mac_addrs))
1479 goto nla_put_failure;
7e7c8926 1480
3713b4e3
JB		 1481 /*
1482 * Any information below this point is only available to
1483 * applications that can deal with it being split. This
1484 * helps ensure that newly added capabilities don't break
1485 * older tools by overrunning their buffers.
1486 *
1487 * We still increment split_start so that in the split
1488 * case we'll continue with more data in the next round,
1489 * but break unconditionally so unsplit data stops here.
1490 */
1491 (*split_start)++;
1492 break;
1493 case 9:
fe1abafd
JB		 1494 if (dev->wiphy.extended_capabilities &&
1495 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1496 dev->wiphy.extended_capabilities_len,
1497 dev->wiphy.extended_capabilities) ||
1498 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1499 dev->wiphy.extended_capabilities_len,
1500 dev->wiphy.extended_capabilities_mask)))
1501 goto nla_put_failure;
a50df0c4 1502
ee2aca34
JB		 1503 if (dev->wiphy.vht_capa_mod_mask &&
1504 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1505 sizeof(*dev->wiphy.vht_capa_mod_mask),
1506 dev->wiphy.vht_capa_mod_mask))
1507 goto nla_put_failure;
1508
3713b4e3
JB		 1509 /* done */
1510 *split_start = 0;
1511 break;
1512 }
55682965
JB		 1513 return genlmsg_end(msg, hdr);
1514
1515 nla_put_failure:
bc3ed28c
TG		 1516 genlmsg_cancel(msg, hdr);
1517 return -EMSGSIZE;
55682965
JB		 1518}
1519
1520static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1521{
645e77de 1522 int idx = 0, ret;
55682965
JB		 1523 int start = cb->args[0];
1524 struct cfg80211_registered_device *dev;
3713b4e3
JB		 1525 s64 filter_wiphy = -1;
1526 bool split = false;
1527 struct nlattr **tb = nl80211_fam.attrbuf;
1528 int res;
55682965 1529
5fe231e8 1530 rtnl_lock();
3713b4e3
JB		 1531 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1532 tb, nl80211_fam.maxattr, nl80211_policy);
1533 if (res == 0) {
1534 split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1535 if (tb[NL80211_ATTR_WIPHY])
1536 filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1537 if (tb[NL80211_ATTR_WDEV])
1538 filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1539 if (tb[NL80211_ATTR_IFINDEX]) {
1540 struct net_device *netdev;
1541 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1542
1543 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
5fe231e8 1544 if (!netdev)
3713b4e3 1545 return -ENODEV;
3713b4e3
JB		 1546 if (netdev->ieee80211_ptr) {
1547 dev = wiphy_to_dev(
1548 netdev->ieee80211_ptr->wiphy);
1549 filter_wiphy = dev->wiphy_idx;
1550 }
1551 dev_put(netdev);
1552 }
1553 }
1554
79c97e97 1555 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1556 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1557 continue;
b4637271 1558 if (++idx <= start)
55682965 1559 continue;
3713b4e3
JB		 1560 if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
1561 continue;
1562 /* attempt to fit multiple wiphy data chunks into the skb */
1563 do {
1564 ret = nl80211_send_wiphy(dev, skb,
1565 NETLINK_CB(cb->skb).portid,
1566 cb->nlh->nlmsg_seq,
1567 NLM_F_MULTI,
1568 split, &cb->args[1],
1569 &cb->args[2],
1570 &cb->args[3]);
1571 if (ret < 0) {
1572 /*
1573 * If sending the wiphy data didn't fit (ENOBUFS
1574 * or EMSGSIZE returned), this SKB is still
1575 * empty (so it's not too big because another
1576 * wiphy dataset is already in the skb) and
1577 * we've not tried to adjust the dump allocation
1578 * yet ... then adjust the alloc size to be
1579 * bigger, and return 1 but with the empty skb.
1580 * This results in an empty message being RX'ed
1581 * in userspace, but that is ignored.
1582 *
1583 * We can then retry with the larger buffer.
1584 */
1585 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1586 !skb->len &&
1587 cb->min_dump_alloc < 4096) {
1588 cb->min_dump_alloc = 4096;
3713b4e3
JB		 1589 return 1;
1590 }
1591 idx--;
1592 break;
645e77de 1593 }
3713b4e3
JB		 1594 } while (cb->args[1] > 0);
1595 break;
55682965 1596 }
5fe231e8 1597 rtnl_unlock();
55682965
JB		 1598
1599 cb->args[0] = idx;
1600
1601 return skb->len;
1602}
1603
1604static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1605{
1606 struct sk_buff *msg;
4c476991 1607 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1608
645e77de 1609 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1610 if (!msg)
4c476991 1611 return -ENOMEM;
55682965 1612
3713b4e3
JB		 1613 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1614 false, NULL, NULL, NULL) < 0) {
4c476991
JB		 1615 nlmsg_free(msg);
1616 return -ENOBUFS;
1617 }
55682965 1618
134e6375 1619 return genlmsg_reply(msg, info);
55682965
JB		 1620}
1621
31888487
JM		 1622static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1623 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1624 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1625 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1626 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1627 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1628};
1629
1630static int parse_txq_params(struct nlattr *tb[],
1631 struct ieee80211_txq_params *txq_params)
1632{
a3304b0a 1633 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1634 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1635 !tb[NL80211_TXQ_ATTR_AIFS])
1636 return -EINVAL;
1637
a3304b0a 1638 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1639 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1640 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1641 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1642 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1643
a3304b0a
JB		 1644 if (txq_params->ac >= NL80211_NUM_ACS)
1645 return -EINVAL;
1646
31888487
JM		 1647 return 0;
1648}
1649
f444de05
JB		 1650static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1651{
1652 /*
cc1d2806
JB		 1653 * You can only set the channel explicitly for WDS interfaces,
1654 * all others have their channel managed via their respective
1655 * "establish a connection" command (connect, join, ...)
1656 *
1657 * For AP/GO and mesh mode, the channel can be set with the
1658 * channel userspace API, but is only stored and passed to the
1659 * low-level driver when the AP starts or the mesh is joined.
1660 * This is for backward compatibility, userspace can also give
1661 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1662 *
1663 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1664 * whatever else is going on, so they have their own special
1665 * operation to set the monitor channel if possible.
f444de05
JB		 1666 */
1667 return !wdev ||
1668 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1669 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1670 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1671 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1672}
1673
683b6d3b
JB		 1674static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1675 struct genl_info *info,
1676 struct cfg80211_chan_def *chandef)
1677{
dbeca2ea 1678 u32 control_freq;
683b6d3b
JB		 1679
1680 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1681 return -EINVAL;
1682
1683 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1684
1685 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1686 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1687 chandef->center_freq1 = control_freq;
1688 chandef->center_freq2 = 0;
683b6d3b
JB		 1689
1690 /* Primary channel not allowed */
1691 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1692 return -EINVAL;
1693
3d9d1d66
JB		 1694 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1695 enum nl80211_channel_type chantype;
1696
1697 chantype = nla_get_u32(
1698 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1699
1700 switch (chantype) {
1701 case NL80211_CHAN_NO_HT:
1702 case NL80211_CHAN_HT20:
1703 case NL80211_CHAN_HT40PLUS:
1704 case NL80211_CHAN_HT40MINUS:
1705 cfg80211_chandef_create(chandef, chandef->chan,
1706 chantype);
1707 break;
1708 default:
1709 return -EINVAL;
1710 }
1711 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1712 chandef->width =
1713 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1714 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1715 chandef->center_freq1 =
1716 nla_get_u32(
1717 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1718 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1719 chandef->center_freq2 =
1720 nla_get_u32(
1721 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1722 }
1723
9f5e8f6e 1724 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1725 return -EINVAL;
1726
9f5e8f6e
JB		 1727 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1728 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1729 return -EINVAL;
1730
683b6d3b
JB		 1731 return 0;
1732}
1733
f444de05
JB		 1734static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1735 struct wireless_dev *wdev,
1736 struct genl_info *info)
1737{
683b6d3b 1738 struct cfg80211_chan_def chandef;
f444de05 1739 int result;
e8c9bd5b
JB		 1740 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1741
1742 if (wdev)
1743 iftype = wdev->iftype;
f444de05 1744
f444de05
JB		 1745 if (!nl80211_can_set_dev_channel(wdev))
1746 return -EOPNOTSUPP;
1747
683b6d3b
JB		 1748 result = nl80211_parse_chandef(rdev, info, &chandef);
1749 if (result)
1750 return result;
f444de05 1751
e8c9bd5b 1752 switch (iftype) {
aa430da4
JB		 1753 case NL80211_IFTYPE_AP:
1754 case NL80211_IFTYPE_P2P_GO:
1755 if (wdev->beacon_interval) {
1756 result = -EBUSY;
1757 break;
1758 }
683b6d3b 1759 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1760 result = -EINVAL;
1761 break;
1762 }
683b6d3b 1763 wdev->preset_chandef = chandef;
aa430da4
JB		 1764 result = 0;
1765 break;
cc1d2806 1766 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1767 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1768 break;
e8c9bd5b 1769 case NL80211_IFTYPE_MONITOR:
683b6d3b 1770 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1771 break;
aa430da4 1772 default:
e8c9bd5b 1773 result = -EINVAL;
f444de05 1774 }
f444de05
JB		 1775
1776 return result;
1777}
1778
1779static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1780{
4c476991
JB		 1781 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1782 struct net_device *netdev = info->user_ptr[1];
f444de05 1783
4c476991 1784 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1785}
1786
e8347eba
BJ		 1787static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1788{
43b19952
JB		 1789 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1790 struct net_device *dev = info->user_ptr[1];
1791 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1792 const u8 *bssid;
e8347eba
BJ		 1793
1794 if (!info->attrs[NL80211_ATTR_MAC])
1795 return -EINVAL;
1796
43b19952
JB		 1797 if (netif_running(dev))
1798 return -EBUSY;
e8347eba 1799
43b19952
JB		 1800 if (!rdev->ops->set_wds_peer)
1801 return -EOPNOTSUPP;
e8347eba 1802
43b19952
JB		 1803 if (wdev->iftype != NL80211_IFTYPE_WDS)
1804 return -EOPNOTSUPP;
e8347eba
BJ		 1805
1806 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1807 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1808}
1809
1810
55682965
JB		 1811static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1812{
1813 struct cfg80211_registered_device *rdev;
f444de05
JB		 1814 struct net_device *netdev = NULL;
1815 struct wireless_dev *wdev;
a1e567c8 1816 int result = 0, rem_txq_params = 0;
31888487 1817 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1818 u32 changed;
1819 u8 retry_short = 0, retry_long = 0;
1820 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1821 u8 coverage_class = 0;
55682965 1822
5fe231e8
JB		 1823 ASSERT_RTNL();
1824
f444de05
JB		 1825 /*
1826 * Try to find the wiphy and netdev. Normally this
1827 * function shouldn't need the netdev, but this is
1828 * done for backward compatibility -- previously
1829 * setting the channel was done per wiphy, but now
1830 * it is per netdev. Previous userland like hostapd
1831 * also passed a netdev to set_wiphy, so that it is
1832 * possible to let that go to the right netdev!
1833 */
4bbf4d56 1834
f444de05
JB		 1835 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1836 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1837
1838 netdev = dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 1839 if (netdev && netdev->ieee80211_ptr)
f444de05 1840 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 1841 else
f444de05 1842 netdev = NULL;
4bbf4d56
JB		 1843 }
1844
f444de05 1845 if (!netdev) {
878d9ec7
JB		 1846 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1847 info->attrs);
5fe231e8 1848 if (IS_ERR(rdev))
4c476991 1849 return PTR_ERR(rdev);
f444de05
JB		 1850 wdev = NULL;
1851 netdev = NULL;
1852 result = 0;
71fe96bf 1853 } else
f444de05 1854 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1855
1856 /*
1857 * end workaround code, by now the rdev is available
1858 * and locked, and wdev may or may not be NULL.
1859 */
4bbf4d56
JB		 1860
1861 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1862 result = cfg80211_dev_rename(
1863 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 1864
4bbf4d56
JB		 1865 if (result)
1866 goto bad_res;
31888487
JM		 1867
1868 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1869 struct ieee80211_txq_params txq_params;
1870 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1871
1872 if (!rdev->ops->set_txq_params) {
1873 result = -EOPNOTSUPP;
1874 goto bad_res;
1875 }
1876
f70f01c2
EP		 1877 if (!netdev) {
1878 result = -EINVAL;
1879 goto bad_res;
1880 }
1881
133a3ff2
JB		 1882 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1883 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1884 result = -EINVAL;
1885 goto bad_res;
1886 }
1887
2b5f8b0b
JB		 1888 if (!netif_running(netdev)) {
1889 result = -ENETDOWN;
1890 goto bad_res;
1891 }
1892
31888487
JM		 1893 nla_for_each_nested(nl_txq_params,
1894 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1895 rem_txq_params) {
1896 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1897 nla_data(nl_txq_params),
1898 nla_len(nl_txq_params),
1899 txq_params_policy);
1900 result = parse_txq_params(tb, &txq_params);
1901 if (result)
1902 goto bad_res;
1903
e35e4d28
HG		 1904 result = rdev_set_txq_params(rdev, netdev,
1905 &txq_params);
31888487
JM		 1906 if (result)
1907 goto bad_res;
1908 }
1909 }
55682965 1910
72bdcf34 1911 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1912 result = __nl80211_set_channel(rdev,
1913 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1914 info);
72bdcf34
JM		 1915 if (result)
1916 goto bad_res;
1917 }
1918
98d2ff8b 1919 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1920 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1921 enum nl80211_tx_power_setting type;
1922 int idx, mbm = 0;
1923
c8442118
JB		 1924 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1925 txp_wdev = NULL;
1926
98d2ff8b 1927 if (!rdev->ops->set_tx_power) {
60ea385f 1928 result = -EOPNOTSUPP;
98d2ff8b
JO		 1929 goto bad_res;
1930 }
1931
1932 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1933 type = nla_get_u32(info->attrs[idx]);
1934
1935 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1936 (type != NL80211_TX_POWER_AUTOMATIC)) {
1937 result = -EINVAL;
1938 goto bad_res;
1939 }
1940
1941 if (type != NL80211_TX_POWER_AUTOMATIC) {
1942 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1943 mbm = nla_get_u32(info->attrs[idx]);
1944 }
1945
c8442118 1946 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1947 if (result)
1948 goto bad_res;
1949 }
1950
afe0cbf8
BR		 1951 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1952 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1953 u32 tx_ant, rx_ant;
7f531e03
BR		 1954 if ((!rdev->wiphy.available_antennas_tx &&
1955 !rdev->wiphy.available_antennas_rx) ||
1956 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1957 result = -EOPNOTSUPP;
1958 goto bad_res;
1959 }
1960
1961 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1962 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1963
a7ffac95 1964 /* reject antenna configurations which don't match the
7f531e03
BR		 1965 * available antenna masks, except for the "all" mask */
1966 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1967 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1968 result = -EINVAL;
1969 goto bad_res;
1970 }
1971
7f531e03
BR		 1972 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1973 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1974
e35e4d28 1975 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 1976 if (result)
1977 goto bad_res;
1978 }
1979
b9a5f8ca
JM		 1980 changed = 0;
1981
1982 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1983 retry_short = nla_get_u8(
1984 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1985 if (retry_short == 0) {
1986 result = -EINVAL;
1987 goto bad_res;
1988 }
1989 changed |= WIPHY_PARAM_RETRY_SHORT;
1990 }
1991
1992 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1993 retry_long = nla_get_u8(
1994 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1995 if (retry_long == 0) {
1996 result = -EINVAL;
1997 goto bad_res;
1998 }
1999 changed |= WIPHY_PARAM_RETRY_LONG;
2000 }
2001
2002 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2003 frag_threshold = nla_get_u32(
2004 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2005 if (frag_threshold < 256) {
2006 result = -EINVAL;
2007 goto bad_res;
2008 }
2009 if (frag_threshold != (u32) -1) {
2010 /*
2011 * Fragments (apart from the last one) are required to
2012 * have even length. Make the fragmentation code
2013 * simpler by stripping LSB should someone try to use
2014 * odd threshold value.
2015 */
2016 frag_threshold &= ~0x1;
2017 }
2018 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2019 }
2020
2021 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2022 rts_threshold = nla_get_u32(
2023 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2024 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2025 }
2026
81077e82
LT		 2027 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2028 coverage_class = nla_get_u8(
2029 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2030 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2031 }
2032
b9a5f8ca
JM		 2033 if (changed) {
2034 u8 old_retry_short, old_retry_long;
2035 u32 old_frag_threshold, old_rts_threshold;
81077e82 2036 u8 old_coverage_class;
b9a5f8ca
JM		 2037
2038 if (!rdev->ops->set_wiphy_params) {
2039 result = -EOPNOTSUPP;
2040 goto bad_res;
2041 }
2042
2043 old_retry_short = rdev->wiphy.retry_short;
2044 old_retry_long = rdev->wiphy.retry_long;
2045 old_frag_threshold = rdev->wiphy.frag_threshold;
2046 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2047 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2048
2049 if (changed & WIPHY_PARAM_RETRY_SHORT)
2050 rdev->wiphy.retry_short = retry_short;
2051 if (changed & WIPHY_PARAM_RETRY_LONG)
2052 rdev->wiphy.retry_long = retry_long;
2053 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2054 rdev->wiphy.frag_threshold = frag_threshold;
2055 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2056 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2057 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2058 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2059
e35e4d28 2060 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2061 if (result) {
2062 rdev->wiphy.retry_short = old_retry_short;
2063 rdev->wiphy.retry_long = old_retry_long;
2064 rdev->wiphy.frag_threshold = old_frag_threshold;
2065 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2066 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2067 }
2068 }
72bdcf34 2069
306d6112 2070 bad_res:
f444de05
JB		 2071 if (netdev)
2072 dev_put(netdev);
55682965
JB		 2073 return result;
2074}
2075
71bbc994
JB		 2076static inline u64 wdev_id(struct wireless_dev *wdev)
2077{
2078 return (u64)wdev->identifier |
2079 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2080}
55682965 2081
683b6d3b
JB		 2082static int nl80211_send_chandef(struct sk_buff *msg,
2083 struct cfg80211_chan_def *chandef)
2084{
9f5e8f6e 2085 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2086
683b6d3b
JB		 2087 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2088 chandef->chan->center_freq))
2089 return -ENOBUFS;
3d9d1d66
JB		 2090 switch (chandef->width) {
2091 case NL80211_CHAN_WIDTH_20_NOHT:
2092 case NL80211_CHAN_WIDTH_20:
2093 case NL80211_CHAN_WIDTH_40:
2094 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2095 cfg80211_get_chandef_type(chandef)))
2096 return -ENOBUFS;
2097 break;
2098 default:
2099 break;
2100 }
2101 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2102 return -ENOBUFS;
2103 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2104 return -ENOBUFS;
2105 if (chandef->center_freq2 &&
2106 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2107 return -ENOBUFS;
2108 return 0;
2109}
2110
15e47304 2111static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2112 struct cfg80211_registered_device *rdev,
72fb2abc 2113 struct wireless_dev *wdev)
55682965 2114{
72fb2abc 2115 struct net_device *dev = wdev->netdev;
55682965
JB		 2116 void *hdr;
2117
15e47304 2118 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2119 if (!hdr)
2120 return -1;
2121
72fb2abc
JB		 2122 if (dev &&
2123 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2124 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2125 goto nla_put_failure;
2126
2127 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2128 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2129 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2130 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2131 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2132 rdev->devlist_generation ^
2133 (cfg80211_rdev_list_generation << 2)))
2134 goto nla_put_failure;
f5ea9120 2135
5b7ccaf3 2136 if (rdev->ops->get_channel) {
683b6d3b
JB		 2137 int ret;
2138 struct cfg80211_chan_def chandef;
2139
2140 ret = rdev_get_channel(rdev, wdev, &chandef);
2141 if (ret == 0) {
2142 if (nl80211_send_chandef(msg, &chandef))
2143 goto nla_put_failure;
2144 }
d91df0e3
PF		 2145 }
2146
b84e7a05
AQ		 2147 if (wdev->ssid_len) {
2148 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2149 goto nla_put_failure;
2150 }
2151
55682965
JB		 2152 return genlmsg_end(msg, hdr);
2153
2154 nla_put_failure:
bc3ed28c
TG		 2155 genlmsg_cancel(msg, hdr);
2156 return -EMSGSIZE;
55682965
JB		 2157}
2158
2159static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2160{
2161 int wp_idx = 0;
2162 int if_idx = 0;
2163 int wp_start = cb->args[0];
2164 int if_start = cb->args[1];
f5ea9120 2165 struct cfg80211_registered_device *rdev;
55682965
JB		 2166 struct wireless_dev *wdev;
2167
5fe231e8 2168 rtnl_lock();
f5ea9120
JB		 2169 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2170 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2171 continue;
bba95fef
JB		 2172 if (wp_idx < wp_start) {
2173 wp_idx++;
55682965 2174 continue;
bba95fef 2175 }
55682965
JB		 2176 if_idx = 0;
2177
89a54e48 2178 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2179 if (if_idx < if_start) {
2180 if_idx++;
55682965 2181 continue;
bba95fef 2182 }
15e47304 2183 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2184 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2185 rdev, wdev) < 0) {
bba95fef
JB		 2186 goto out;
2187 }
2188 if_idx++;
55682965 2189 }
bba95fef
JB		 2190
2191 wp_idx++;
55682965 2192 }
bba95fef 2193 out:
5fe231e8 2194 rtnl_unlock();
55682965
JB		 2195
2196 cb->args[0] = wp_idx;
2197 cb->args[1] = if_idx;
2198
2199 return skb->len;
2200}
2201
2202static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2203{
2204 struct sk_buff *msg;
4c476991 2205 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2206 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2207
fd2120ca 2208 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2209 if (!msg)
4c476991 2210 return -ENOMEM;
55682965 2211
15e47304 2212 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2213 dev, wdev) < 0) {
4c476991
JB		 2214 nlmsg_free(msg);
2215 return -ENOBUFS;
2216 }
55682965 2217
134e6375 2218 return genlmsg_reply(msg, info);
55682965
JB		 2219}
2220
66f7ac50
MW		 2221static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2222 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2223 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2224 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2225 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2226 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2227 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2228};
2229
2230static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2231{
2232 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2233 int flag;
2234
2235 *mntrflags = 0;
2236
2237 if (!nla)
2238 return -EINVAL;
2239
2240 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2241 nla, mntr_flags_policy))
2242 return -EINVAL;
2243
2244 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2245 if (flags[flag])
2246 *mntrflags |= (1<<flag);
2247
2248 return 0;
2249}
2250
9bc383de 2251static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2252 struct net_device *netdev, u8 use_4addr,
2253 enum nl80211_iftype iftype)
9bc383de 2254{
ad4bb6f8 2255 if (!use_4addr) {
f350a0a8 2256 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2257 return -EBUSY;
9bc383de 2258 return 0;
ad4bb6f8 2259 }
9bc383de
JB		 2260
2261 switch (iftype) {
2262 case NL80211_IFTYPE_AP_VLAN:
2263 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2264 return 0;
2265 break;
2266 case NL80211_IFTYPE_STATION:
2267 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2268 return 0;
2269 break;
2270 default:
2271 break;
2272 }
2273
2274 return -EOPNOTSUPP;
2275}
2276
55682965
JB		 2277static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2278{
4c476991 2279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2280 struct vif_params params;
e36d56b6 2281 int err;
04a773ad 2282 enum nl80211_iftype otype, ntype;
4c476991 2283 struct net_device *dev = info->user_ptr[1];
92ffe055 2284 u32 _flags, *flags = NULL;
ac7f9cfa 2285 bool change = false;
55682965 2286
2ec600d6
LCC		 2287 memset(&params, 0, sizeof(params));
2288
04a773ad 2289 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2290
723b038d 2291 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2292 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2293 if (otype != ntype)
ac7f9cfa 2294 change = true;
4c476991
JB		 2295 if (ntype > NL80211_IFTYPE_MAX)
2296 return -EINVAL;
723b038d
JB		 2297 }
2298
92ffe055 2299 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2300 struct wireless_dev *wdev = dev->ieee80211_ptr;
2301
4c476991
JB		 2302 if (ntype != NL80211_IFTYPE_MESH_POINT)
2303 return -EINVAL;
29cbe68c
JB		 2304 if (netif_running(dev))
2305 return -EBUSY;
2306
2307 wdev_lock(wdev);
2308 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2309 IEEE80211_MAX_MESH_ID_LEN);
2310 wdev->mesh_id_up_len =
2311 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2312 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2313 wdev->mesh_id_up_len);
2314 wdev_unlock(wdev);
2ec600d6
LCC		 2315 }
2316
8b787643
FF		 2317 if (info->attrs[NL80211_ATTR_4ADDR]) {
2318 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2319 change = true;
ad4bb6f8 2320 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2321 if (err)
4c476991 2322 return err;
8b787643
FF		 2323 } else {
2324 params.use_4addr = -1;
2325 }
2326
92ffe055 2327 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2328 if (ntype != NL80211_IFTYPE_MONITOR)
2329 return -EINVAL;
92ffe055
JB		 2330 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2331 &_flags);
ac7f9cfa 2332 if (err)
4c476991 2333 return err;
ac7f9cfa
JB		 2334
2335 flags = &_flags;
2336 change = true;
92ffe055 2337 }
3b85875a 2338
e057d3c3
FF		 2339 if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
2340 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2341 return -EOPNOTSUPP;
2342
ac7f9cfa 2343 if (change)
3d54d255 2344 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2345 else
2346 err = 0;
60719ffd 2347
9bc383de
JB		 2348 if (!err && params.use_4addr != -1)
2349 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2350
55682965
JB		 2351 return err;
2352}
2353
2354static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2355{
4c476991 2356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2357 struct vif_params params;
84efbb84 2358 struct wireless_dev *wdev;
1c90f9d4 2359 struct sk_buff *msg;
55682965
JB		 2360 int err;
2361 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2362 u32 flags;
55682965 2363
2ec600d6
LCC		 2364 memset(&params, 0, sizeof(params));
2365
55682965
JB		 2366 if (!info->attrs[NL80211_ATTR_IFNAME])
2367 return -EINVAL;
2368
2369 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2370 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2371 if (type > NL80211_IFTYPE_MAX)
2372 return -EINVAL;
2373 }
2374
79c97e97 2375 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2376 !(rdev->wiphy.interface_modes & (1 << type)))
2377 return -EOPNOTSUPP;
55682965 2378
1c18f145
AS		 2379 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2380 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2381 ETH_ALEN);
2382 if (!is_valid_ether_addr(params.macaddr))
2383 return -EADDRNOTAVAIL;
2384 }
2385
9bc383de 2386 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2387 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2388 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2389 if (err)
4c476991 2390 return err;
9bc383de 2391 }
8b787643 2392
1c90f9d4
JB		 2393 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2394 if (!msg)
2395 return -ENOMEM;
2396
66f7ac50
MW		 2397 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2398 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2399 &flags);
e057d3c3
FF		 2400
2401 if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
2402 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2403 return -EOPNOTSUPP;
2404
e35e4d28
HG		 2405 wdev = rdev_add_virtual_intf(rdev,
2406 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2407 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2408 if (IS_ERR(wdev)) {
2409 nlmsg_free(msg);
84efbb84 2410 return PTR_ERR(wdev);
1c90f9d4 2411 }
2ec600d6 2412
98104fde
JB		 2413 switch (type) {
2414 case NL80211_IFTYPE_MESH_POINT:
2415 if (!info->attrs[NL80211_ATTR_MESH_ID])
2416 break;
29cbe68c
JB		 2417 wdev_lock(wdev);
2418 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2419 IEEE80211_MAX_MESH_ID_LEN);
2420 wdev->mesh_id_up_len =
2421 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2422 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2423 wdev->mesh_id_up_len);
2424 wdev_unlock(wdev);
98104fde
JB		 2425 break;
2426 case NL80211_IFTYPE_P2P_DEVICE:
2427 /*
2428 * P2P Device doesn't have a netdev, so doesn't go
2429 * through the netdev notifier and must be added here
2430 */
2431 mutex_init(&wdev->mtx);
2432 INIT_LIST_HEAD(&wdev->event_list);
2433 spin_lock_init(&wdev->event_lock);
2434 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2435 spin_lock_init(&wdev->mgmt_registrations_lock);
2436
98104fde
JB		 2437 wdev->identifier = ++rdev->wdev_id;
2438 list_add_rcu(&wdev->list, &rdev->wdev_list);
2439 rdev->devlist_generation++;
98104fde
JB		 2440 break;
2441 default:
2442 break;
29cbe68c
JB		 2443 }
2444
15e47304 2445 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2446 rdev, wdev) < 0) {
2447 nlmsg_free(msg);
2448 return -ENOBUFS;
2449 }
2450
2451 return genlmsg_reply(msg, info);
55682965
JB		 2452}
2453
2454static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2455{
4c476991 2456 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2457 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2458
4c476991
JB		 2459 if (!rdev->ops->del_virtual_intf)
2460 return -EOPNOTSUPP;
55682965 2461
84efbb84
JB		 2462 /*
2463 * If we remove a wireless device without a netdev then clear
2464 * user_ptr[1] so that nl80211_post_doit won't dereference it
2465 * to check if it needs to do dev_put(). Otherwise it crashes
2466 * since the wdev has been freed, unlike with a netdev where
2467 * we need the dev_put() for the netdev to really be freed.
2468 */
2469 if (!wdev->netdev)
2470 info->user_ptr[1] = NULL;
2471
e35e4d28 2472 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2473}
2474
1d9d9213
SW		 2475static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2476{
2477 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2478 struct net_device *dev = info->user_ptr[1];
2479 u16 noack_map;
2480
2481 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2482 return -EINVAL;
2483
2484 if (!rdev->ops->set_noack_map)
2485 return -EOPNOTSUPP;
2486
2487 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2488
e35e4d28 2489 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2490}
2491
41ade00f
JB		 2492struct get_key_cookie {
2493 struct sk_buff *msg;
2494 int error;
b9454e83 2495 int idx;
41ade00f
JB		 2496};
2497
2498static void get_key_callback(void *c, struct key_params *params)
2499{
b9454e83 2500 struct nlattr *key;
41ade00f
JB		 2501 struct get_key_cookie *cookie = c;
2502
9360ffd1
DM		 2503 if ((params->key &&
2504 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2505 params->key_len, params->key)) ||
2506 (params->seq &&
2507 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2508 params->seq_len, params->seq)) ||
2509 (params->cipher &&
2510 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2511 params->cipher)))
2512 goto nla_put_failure;
41ade00f 2513
b9454e83
JB		 2514 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2515 if (!key)
2516 goto nla_put_failure;
2517
9360ffd1
DM		 2518 if ((params->key &&
2519 nla_put(cookie->msg, NL80211_KEY_DATA,
2520 params->key_len, params->key)) ||
2521 (params->seq &&
2522 nla_put(cookie->msg, NL80211_KEY_SEQ,
2523 params->seq_len, params->seq)) ||
2524 (params->cipher &&
2525 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2526 params->cipher)))
2527 goto nla_put_failure;
b9454e83 2528
9360ffd1
DM		 2529 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2530 goto nla_put_failure;
b9454e83
JB		 2531
2532 nla_nest_end(cookie->msg, key);
2533
41ade00f
JB		 2534 return;
2535 nla_put_failure:
2536 cookie->error = 1;
2537}
2538
2539static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2540{
4c476991 2541 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2542 int err;
4c476991 2543 struct net_device *dev = info->user_ptr[1];
41ade00f 2544 u8 key_idx = 0;
e31b8213
JB		 2545 const u8 *mac_addr = NULL;
2546 bool pairwise;
41ade00f
JB		 2547 struct get_key_cookie cookie = {
2548 .error = 0,
2549 };
2550 void *hdr;
2551 struct sk_buff *msg;
2552
2553 if (info->attrs[NL80211_ATTR_KEY_IDX])
2554 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2555
3cfcf6ac 2556 if (key_idx > 5)
41ade00f
JB		 2557 return -EINVAL;
2558
2559 if (info->attrs[NL80211_ATTR_MAC])
2560 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2561
e31b8213
JB		 2562 pairwise = !!mac_addr;
2563 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2564 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2565 if (kt >= NUM_NL80211_KEYTYPES)
2566 return -EINVAL;
2567 if (kt != NL80211_KEYTYPE_GROUP &&
2568 kt != NL80211_KEYTYPE_PAIRWISE)
2569 return -EINVAL;
2570 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2571 }
2572
4c476991
JB		 2573 if (!rdev->ops->get_key)
2574 return -EOPNOTSUPP;
41ade00f 2575
fd2120ca 2576 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2577 if (!msg)
2578 return -ENOMEM;
41ade00f 2579
15e47304 2580 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2581 NL80211_CMD_NEW_KEY);
4c476991
JB		 2582 if (IS_ERR(hdr))
2583 return PTR_ERR(hdr);
41ade00f
JB		 2584
2585 cookie.msg = msg;
b9454e83 2586 cookie.idx = key_idx;
41ade00f 2587
9360ffd1
DM		 2588 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2589 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2590 goto nla_put_failure;
2591 if (mac_addr &&
2592 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2593 goto nla_put_failure;
41ade00f 2594
e31b8213
JB		 2595 if (pairwise && mac_addr &&
2596 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2597 return -ENOENT;
2598
e35e4d28
HG		 2599 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2600 get_key_callback);
41ade00f
JB		 2601
2602 if (err)
6c95e2a2 2603 goto free_msg;
41ade00f
JB		 2604
2605 if (cookie.error)
2606 goto nla_put_failure;
2607
2608 genlmsg_end(msg, hdr);
4c476991 2609 return genlmsg_reply(msg, info);
41ade00f
JB		 2610
2611 nla_put_failure:
2612 err = -ENOBUFS;
6c95e2a2 2613 free_msg:
41ade00f 2614 nlmsg_free(msg);
41ade00f
JB		 2615 return err;
2616}
2617
2618static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2619{
4c476991 2620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2621 struct key_parse key;
41ade00f 2622 int err;
4c476991 2623 struct net_device *dev = info->user_ptr[1];
41ade00f 2624
b9454e83
JB		 2625 err = nl80211_parse_key(info, &key);
2626 if (err)
2627 return err;
41ade00f 2628
b9454e83 2629 if (key.idx < 0)
41ade00f
JB		 2630 return -EINVAL;
2631
b9454e83
JB		 2632 /* only support setting default key */
2633 if (!key.def && !key.defmgmt)
41ade00f
JB		 2634 return -EINVAL;
2635
dbd2fd65 2636 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2637
dbd2fd65
JB		 2638 if (key.def) {
2639 if (!rdev->ops->set_default_key) {
2640 err = -EOPNOTSUPP;
2641 goto out;
2642 }
41ade00f 2643
dbd2fd65
JB		 2644 err = nl80211_key_allowed(dev->ieee80211_ptr);
2645 if (err)
2646 goto out;
2647
e35e4d28 2648 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2649 key.def_uni, key.def_multi);
2650
2651 if (err)
2652 goto out;
fffd0934 2653
3d23e349 2654#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2655 dev->ieee80211_ptr->wext.default_key = key.idx;
2656#endif
2657 } else {
2658 if (key.def_uni || !key.def_multi) {
2659 err = -EINVAL;
2660 goto out;
2661 }
2662
2663 if (!rdev->ops->set_default_mgmt_key) {
2664 err = -EOPNOTSUPP;
2665 goto out;
2666 }
2667
2668 err = nl80211_key_allowed(dev->ieee80211_ptr);
2669 if (err)
2670 goto out;
2671
e35e4d28 2672 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2673 if (err)
2674 goto out;
2675
2676#ifdef CONFIG_CFG80211_WEXT
2677 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2678#endif
dbd2fd65
JB		 2679 }
2680
2681 out:
fffd0934 2682 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2683
41ade00f
JB		 2684 return err;
2685}
2686
2687static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2688{
4c476991 2689 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2690 int err;
4c476991 2691 struct net_device *dev = info->user_ptr[1];
b9454e83 2692 struct key_parse key;
e31b8213 2693 const u8 *mac_addr = NULL;
41ade00f 2694
b9454e83
JB		 2695 err = nl80211_parse_key(info, &key);
2696 if (err)
2697 return err;
41ade00f 2698
b9454e83 2699 if (!key.p.key)
41ade00f
JB		 2700 return -EINVAL;
2701
41ade00f
JB		 2702 if (info->attrs[NL80211_ATTR_MAC])
2703 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2704
e31b8213
JB		 2705 if (key.type == -1) {
2706 if (mac_addr)
2707 key.type = NL80211_KEYTYPE_PAIRWISE;
2708 else
2709 key.type = NL80211_KEYTYPE_GROUP;
2710 }
2711
2712 /* for now */
2713 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2714 key.type != NL80211_KEYTYPE_GROUP)
2715 return -EINVAL;
2716
4c476991
JB		 2717 if (!rdev->ops->add_key)
2718 return -EOPNOTSUPP;
25e47c18 2719
e31b8213
JB		 2720 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2721 key.type == NL80211_KEYTYPE_PAIRWISE,
2722 mac_addr))
4c476991 2723 return -EINVAL;
41ade00f 2724
fffd0934
JB		 2725 wdev_lock(dev->ieee80211_ptr);
2726 err = nl80211_key_allowed(dev->ieee80211_ptr);
2727 if (!err)
e35e4d28
HG		 2728 err = rdev_add_key(rdev, dev, key.idx,
2729 key.type == NL80211_KEYTYPE_PAIRWISE,
2730 mac_addr, &key.p);
fffd0934 2731 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2732
41ade00f
JB		 2733 return err;
2734}
2735
2736static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2737{
4c476991 2738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2739 int err;
4c476991 2740 struct net_device *dev = info->user_ptr[1];
41ade00f 2741 u8 *mac_addr = NULL;
b9454e83 2742 struct key_parse key;
41ade00f 2743
b9454e83
JB		 2744 err = nl80211_parse_key(info, &key);
2745 if (err)
2746 return err;
41ade00f
JB		 2747
2748 if (info->attrs[NL80211_ATTR_MAC])
2749 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2750
e31b8213
JB		 2751 if (key.type == -1) {
2752 if (mac_addr)
2753 key.type = NL80211_KEYTYPE_PAIRWISE;
2754 else
2755 key.type = NL80211_KEYTYPE_GROUP;
2756 }
2757
2758 /* for now */
2759 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2760 key.type != NL80211_KEYTYPE_GROUP)
2761 return -EINVAL;
2762
4c476991
JB		 2763 if (!rdev->ops->del_key)
2764 return -EOPNOTSUPP;
41ade00f 2765
fffd0934
JB		 2766 wdev_lock(dev->ieee80211_ptr);
2767 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2768
2769 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2770 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2771 err = -ENOENT;
2772
fffd0934 2773 if (!err)
e35e4d28
HG		 2774 err = rdev_del_key(rdev, dev, key.idx,
2775 key.type == NL80211_KEYTYPE_PAIRWISE,
2776 mac_addr);
41ade00f 2777
3d23e349 2778#ifdef CONFIG_CFG80211_WEXT
08645126 2779 if (!err) {
b9454e83 2780 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2781 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2782 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2783 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2784 }
2785#endif
fffd0934 2786 wdev_unlock(dev->ieee80211_ptr);
08645126 2787
41ade00f
JB		 2788 return err;
2789}
2790
77765eaf
VT		 2791/* This function returns an error or the number of nested attributes */
2792static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2793{
2794 struct nlattr *attr;
2795 int n_entries = 0, tmp;
2796
2797 nla_for_each_nested(attr, nl_attr, tmp) {
2798 if (nla_len(attr) != ETH_ALEN)
2799 return -EINVAL;
2800
2801 n_entries++;
2802 }
2803
2804 return n_entries;
2805}
2806
2807/*
2808 * This function parses ACL information and allocates memory for ACL data.
2809 * On successful return, the calling function is responsible to free the
2810 * ACL buffer returned by this function.
2811 */
2812static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2813 struct genl_info *info)
2814{
2815 enum nl80211_acl_policy acl_policy;
2816 struct nlattr *attr;
2817 struct cfg80211_acl_data *acl;
2818 int i = 0, n_entries, tmp;
2819
2820 if (!wiphy->max_acl_mac_addrs)
2821 return ERR_PTR(-EOPNOTSUPP);
2822
2823 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2824 return ERR_PTR(-EINVAL);
2825
2826 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2827 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2828 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2829 return ERR_PTR(-EINVAL);
2830
2831 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2832 return ERR_PTR(-EINVAL);
2833
2834 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2835 if (n_entries < 0)
2836 return ERR_PTR(n_entries);
2837
2838 if (n_entries > wiphy->max_acl_mac_addrs)
2839 return ERR_PTR(-ENOTSUPP);
2840
2841 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2842 GFP_KERNEL);
2843 if (!acl)
2844 return ERR_PTR(-ENOMEM);
2845
2846 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2847 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2848 i++;
2849 }
2850
2851 acl->n_acl_entries = n_entries;
2852 acl->acl_policy = acl_policy;
2853
2854 return acl;
2855}
2856
2857static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2858{
2859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2860 struct net_device *dev = info->user_ptr[1];
2861 struct cfg80211_acl_data *acl;
2862 int err;
2863
2864 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2865 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2866 return -EOPNOTSUPP;
2867
2868 if (!dev->ieee80211_ptr->beacon_interval)
2869 return -EINVAL;
2870
2871 acl = parse_acl_data(&rdev->wiphy, info);
2872 if (IS_ERR(acl))
2873 return PTR_ERR(acl);
2874
2875 err = rdev_set_mac_acl(rdev, dev, acl);
2876
2877 kfree(acl);
2878
2879 return err;
2880}
2881
8860020e
JB		 2882static int nl80211_parse_beacon(struct genl_info *info,
2883 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2884{
8860020e 2885 bool haveinfo = false;
ed1b6cc7 2886
9946ecfb
JM		 2887 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2888 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2889 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2890 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2891 return -EINVAL;
2892
8860020e 2893 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2894
ed1b6cc7 2895 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2896 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2897 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2898 if (!bcn->head_len)
2899 return -EINVAL;
2900 haveinfo = true;
ed1b6cc7
JB		 2901 }
2902
2903 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2904 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2905 bcn->tail_len =
ed1b6cc7 2906 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2907 haveinfo = true;
ed1b6cc7
JB		 2908 }
2909
4c476991
JB		 2910 if (!haveinfo)
2911 return -EINVAL;
3b85875a 2912
9946ecfb 2913 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2914 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2915 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2916 }
2917
2918 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2919 bcn->proberesp_ies =
9946ecfb 2920 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2921 bcn->proberesp_ies_len =
9946ecfb
JM		 2922 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2923 }
2924
2925 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2926 bcn->assocresp_ies =
9946ecfb 2927 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2928 bcn->assocresp_ies_len =
9946ecfb
JM		 2929 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2930 }
2931
00f740e1 2932 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2933 bcn->probe_resp =
00f740e1 2934 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2935 bcn->probe_resp_len =
00f740e1
AN		 2936 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2937 }
2938
8860020e
JB		 2939 return 0;
2940}
2941
46c1dd0c
FF		 2942static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2943 struct cfg80211_ap_settings *params)
2944{
2945 struct wireless_dev *wdev;
2946 bool ret = false;
2947
89a54e48 2948 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2949 if (wdev->iftype != NL80211_IFTYPE_AP &&
2950 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2951 continue;
2952
683b6d3b 2953 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2954 continue;
2955
683b6d3b 2956 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2957 ret = true;
2958 break;
2959 }
2960
46c1dd0c
FF		 2961 return ret;
2962}
2963
e39e5b5e
JM		 2964static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2965 enum nl80211_auth_type auth_type,
2966 enum nl80211_commands cmd)
2967{
2968 if (auth_type > NL80211_AUTHTYPE_MAX)
2969 return false;
2970
2971 switch (cmd) {
2972 case NL80211_CMD_AUTHENTICATE:
2973 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2974 auth_type == NL80211_AUTHTYPE_SAE)
2975 return false;
2976 return true;
2977 case NL80211_CMD_CONNECT:
2978 case NL80211_CMD_START_AP:
2979 /* SAE not supported yet */
2980 if (auth_type == NL80211_AUTHTYPE_SAE)
2981 return false;
2982 return true;
2983 default:
2984 return false;
2985 }
2986}
2987
8860020e
JB		 2988static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2989{
2990 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2991 struct net_device *dev = info->user_ptr[1];
2992 struct wireless_dev *wdev = dev->ieee80211_ptr;
2993 struct cfg80211_ap_settings params;
2994 int err;
04f39047 2995 u8 radar_detect_width = 0;
8860020e
JB		 2996
2997 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2998 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2999 return -EOPNOTSUPP;
3000
3001 if (!rdev->ops->start_ap)
3002 return -EOPNOTSUPP;
3003
3004 if (wdev->beacon_interval)
3005 return -EALREADY;
3006
3007 memset(&params, 0, sizeof(params));
3008
3009 /* these are required for START_AP */
3010 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3011 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3012 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3013 return -EINVAL;
3014
3015 err = nl80211_parse_beacon(info, &params.beacon);
3016 if (err)
3017 return err;
3018
3019 params.beacon_interval =
3020 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3021 params.dtim_period =
3022 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3023
3024 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3025 if (err)
3026 return err;
3027
3028 /*
3029 * In theory, some of these attributes should be required here
3030 * but since they were not used when the command was originally
3031 * added, keep them optional for old user space programs to let
3032 * them continue to work with drivers that do not need the
3033 * additional information -- drivers must check!
3034 */
3035 if (info->attrs[NL80211_ATTR_SSID]) {
3036 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3037 params.ssid_len =
3038 nla_len(info->attrs[NL80211_ATTR_SSID]);
3039 if (params.ssid_len == 0 ||
3040 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3041 return -EINVAL;
3042 }
3043
3044 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3045 params.hidden_ssid = nla_get_u32(
3046 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3047 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3048 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3049 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3050 return -EINVAL;
3051 }
3052
3053 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3054
3055 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3056 params.auth_type = nla_get_u32(
3057 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3058 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3059 NL80211_CMD_START_AP))
8860020e
JB		 3060 return -EINVAL;
3061 } else
3062 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3063
3064 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3065 NL80211_MAX_NR_CIPHER_SUITES);
3066 if (err)
3067 return err;
3068
1b658f11
VT		 3069 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3070 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3071 return -EOPNOTSUPP;
3072 params.inactivity_timeout = nla_get_u16(
3073 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3074 }
3075
53cabad7
JB		 3076 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3077 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3078 return -EINVAL;
3079 params.p2p_ctwindow =
3080 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3081 if (params.p2p_ctwindow > 127)
3082 return -EINVAL;
3083 if (params.p2p_ctwindow != 0 &&
3084 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3085 return -EINVAL;
3086 }
3087
3088 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3089 u8 tmp;
3090
3091 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3092 return -EINVAL;
3093 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3094 if (tmp > 1)
3095 return -EINVAL;
3096 params.p2p_opp_ps = tmp;
3097 if (params.p2p_opp_ps != 0 &&
3098 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3099 return -EINVAL;
3100 }
3101
aa430da4 3102 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3103 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3104 if (err)
3105 return err;
3106 } else if (wdev->preset_chandef.chan) {
3107 params.chandef = wdev->preset_chandef;
46c1dd0c 3108 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3109 return -EINVAL;
3110
683b6d3b 3111 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3112 return -EINVAL;
3113
04f39047
SW		 3114 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3115 if (err < 0)
3116 return err;
3117 if (err) {
3118 radar_detect_width = BIT(params.chandef.width);
3119 params.radar_required = true;
3120 }
3121
04f39047
SW		 3122 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3123 params.chandef.chan,
3124 CHAN_MODE_SHARED,
3125 radar_detect_width);
e4e32459
MK		 3126 if (err)
3127 return err;
3128
77765eaf
VT		 3129 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3130 params.acl = parse_acl_data(&rdev->wiphy, info);
3131 if (IS_ERR(params.acl))
3132 return PTR_ERR(params.acl);
3133 }
3134
e35e4d28 3135 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3136 if (!err) {
683b6d3b 3137 wdev->preset_chandef = params.chandef;
8860020e 3138 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3139 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3140 wdev->ssid_len = params.ssid_len;
3141 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3142 }
77765eaf
VT		 3143
3144 kfree(params.acl);
3145
56d1893d 3146 return err;
ed1b6cc7
JB		 3147}
3148
8860020e
JB		 3149static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3150{
3151 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3152 struct net_device *dev = info->user_ptr[1];
3153 struct wireless_dev *wdev = dev->ieee80211_ptr;
3154 struct cfg80211_beacon_data params;
3155 int err;
3156
3157 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3158 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3159 return -EOPNOTSUPP;
3160
3161 if (!rdev->ops->change_beacon)
3162 return -EOPNOTSUPP;
3163
3164 if (!wdev->beacon_interval)
3165 return -EINVAL;
3166
3167 err = nl80211_parse_beacon(info, &params);
3168 if (err)
3169 return err;
3170
e35e4d28 3171 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 3172}
3173
3174static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3175{
4c476991
JB		 3176 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3177 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3178
60771780 3179 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3180}
3181
5727ef1b
JB		 3182static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3183 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3184 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3185 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3186 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3187 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3188 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3189};
3190
eccb8e8f 3191static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3192 enum nl80211_iftype iftype,
eccb8e8f 3193 struct station_parameters *params)
5727ef1b
JB		 3194{
3195 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3196 struct nlattr *nla;
5727ef1b
JB		 3197 int flag;
3198
eccb8e8f
JB		 3199 /*
3200 * Try parsing the new attribute first so userspace
3201 * can specify both for older kernels.
3202 */
3203 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3204 if (nla) {
3205 struct nl80211_sta_flag_update *sta_flags;
3206
3207 sta_flags = nla_data(nla);
3208 params->sta_flags_mask = sta_flags->mask;
3209 params->sta_flags_set = sta_flags->set;
77ee7c89 3210 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3211 if ((params->sta_flags_mask |
3212 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3213 return -EINVAL;
3214 return 0;
3215 }
3216
3217 /* if present, parse the old attribute */
5727ef1b 3218
eccb8e8f 3219 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3220 if (!nla)
3221 return 0;
3222
3223 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3224 nla, sta_flags_policy))
3225 return -EINVAL;
3226
bdd3ae3d
JB		 3227 /*
3228 * Only allow certain flags for interface types so that
3229 * other attributes are silently ignored. Remember that
3230 * this is backward compatibility code with old userspace
3231 * and shouldn't be hit in other cases anyway.
3232 */
3233 switch (iftype) {
3234 case NL80211_IFTYPE_AP:
3235 case NL80211_IFTYPE_AP_VLAN:
3236 case NL80211_IFTYPE_P2P_GO:
3237 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3238 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3239 BIT(NL80211_STA_FLAG_WME) |
3240 BIT(NL80211_STA_FLAG_MFP);
3241 break;
3242 case NL80211_IFTYPE_P2P_CLIENT:
3243 case NL80211_IFTYPE_STATION:
3244 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3245 BIT(NL80211_STA_FLAG_TDLS_PEER);
3246 break;
3247 case NL80211_IFTYPE_MESH_POINT:
3248 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3249 BIT(NL80211_STA_FLAG_MFP) |
3250 BIT(NL80211_STA_FLAG_AUTHORIZED);
3251 default:
3252 return -EINVAL;
3253 }
5727ef1b 3254
3383b5a6
JB		 3255 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3256 if (flags[flag]) {
eccb8e8f 3257 params->sta_flags_set |= (1<<flag);
5727ef1b 3258
3383b5a6
JB		 3259 /* no longer support new API additions in old API */
3260 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3261 return -EINVAL;
3262 }
3263 }
3264
5727ef1b
JB		 3265 return 0;
3266}
3267
c8dcfd8a
FF		 3268static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3269 int attr)
3270{
3271 struct nlattr *rate;
8eb41c8d
VK		 3272 u32 bitrate;
3273 u16 bitrate_compat;
c8dcfd8a
FF		 3274
3275 rate = nla_nest_start(msg, attr);
3276 if (!rate)
db9c64cf 3277 return false;
c8dcfd8a
FF		 3278
3279 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3280 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3281 /* report 16-bit bitrate only if we can */
3282 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3283 if (bitrate > 0 &&
3284 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3285 return false;
3286 if (bitrate_compat > 0 &&
3287 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3288 return false;
3289
3290 if (info->flags & RATE_INFO_FLAGS_MCS) {
3291 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3292 return false;
3293 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3294 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3295 return false;
3296 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3297 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3298 return false;
3299 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3300 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3301 return false;
3302 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3303 return false;
3304 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3305 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3306 return false;
3307 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3308 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3309 return false;
3310 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3311 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3312 return false;
3313 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3314 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3315 return false;
3316 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3317 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3318 return false;
3319 }
c8dcfd8a
FF		 3320
3321 nla_nest_end(msg, rate);
3322 return true;
c8dcfd8a
FF		 3323}
3324
119363c7
FF		 3325static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3326 int id)
3327{
3328 void *attr;
3329 int i = 0;
3330
3331 if (!mask)
3332 return true;
3333
3334 attr = nla_nest_start(msg, id);
3335 if (!attr)
3336 return false;
3337
3338 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3339 if (!(mask & BIT(i)))
3340 continue;
3341
3342 if (nla_put_u8(msg, i, signal[i]))
3343 return false;
3344 }
3345
3346 nla_nest_end(msg, attr);
3347
3348 return true;
3349}
3350
15e47304 3351static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3352 int flags,
3353 struct cfg80211_registered_device *rdev,
3354 struct net_device *dev,
98b62183 3355 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3356{
3357 void *hdr;
f4263c98 3358 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3359
15e47304 3360 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3361 if (!hdr)
3362 return -1;
3363
9360ffd1
DM		 3364 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3365 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3366 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3367 goto nla_put_failure;
f5ea9120 3368
2ec600d6
LCC		 3369 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3370 if (!sinfoattr)
fd5b74dc 3371 goto nla_put_failure;
9360ffd1
DM		 3372 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3373 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3374 sinfo->connected_time))
3375 goto nla_put_failure;
3376 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3377 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3378 sinfo->inactive_time))
3379 goto nla_put_failure;
42745e03
VK		 3380 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3381 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3382 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3383 (u32)sinfo->rx_bytes))
9360ffd1 3384 goto nla_put_failure;
42745e03 3385 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3386 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3387 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3388 (u32)sinfo->tx_bytes))
3389 goto nla_put_failure;
3390 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3391 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3392 sinfo->rx_bytes))
3393 goto nla_put_failure;
3394 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3395 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3396 sinfo->tx_bytes))
3397 goto nla_put_failure;
3398 if ((sinfo->filled & STATION_INFO_LLID) &&
3399 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3400 goto nla_put_failure;
3401 if ((sinfo->filled & STATION_INFO_PLID) &&
3402 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3403 goto nla_put_failure;
3404 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3405 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3406 sinfo->plink_state))
3407 goto nla_put_failure;
66266b3a
JL		 3408 switch (rdev->wiphy.signal_type) {
3409 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3410 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3411 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3412 sinfo->signal))
3413 goto nla_put_failure;
3414 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3415 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3416 sinfo->signal_avg))
3417 goto nla_put_failure;
66266b3a
JL		 3418 break;
3419 default:
3420 break;
3421 }
119363c7
FF		 3422 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3423 if (!nl80211_put_signal(msg, sinfo->chains,
3424 sinfo->chain_signal,
3425 NL80211_STA_INFO_CHAIN_SIGNAL))
3426 goto nla_put_failure;
3427 }
3428 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3429 if (!nl80211_put_signal(msg, sinfo->chains,
3430 sinfo->chain_signal_avg,
3431 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3432 goto nla_put_failure;
3433 }
420e7fab 3434 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3435 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3436 NL80211_STA_INFO_TX_BITRATE))
3437 goto nla_put_failure;
3438 }
3439 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3440 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3441 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3442 goto nla_put_failure;
420e7fab 3443 }
9360ffd1
DM		 3444 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3445 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3446 sinfo->rx_packets))
3447 goto nla_put_failure;
3448 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3449 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3450 sinfo->tx_packets))
3451 goto nla_put_failure;
3452 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3453 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3454 sinfo->tx_retries))
3455 goto nla_put_failure;
3456 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3457 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3458 sinfo->tx_failed))
3459 goto nla_put_failure;
3460 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3461 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3462 sinfo->beacon_loss_count))
3463 goto nla_put_failure;
3b1c5a53
MP		 3464 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3465 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3466 sinfo->local_pm))
3467 goto nla_put_failure;
3468 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3469 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3470 sinfo->peer_pm))
3471 goto nla_put_failure;
3472 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3473 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3474 sinfo->nonpeer_pm))
3475 goto nla_put_failure;
f4263c98
PS		 3476 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3477 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3478 if (!bss_param)
3479 goto nla_put_failure;
3480
9360ffd1
DM		 3481 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3482 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3483 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3484 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3485 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3486 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3487 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3488 sinfo->bss_param.dtim_period) ||
3489 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3490 sinfo->bss_param.beacon_interval))
3491 goto nla_put_failure;
f4263c98
PS		 3492
3493 nla_nest_end(msg, bss_param);
3494 }
9360ffd1
DM		 3495 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3496 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3497 sizeof(struct nl80211_sta_flag_update),
3498 &sinfo->sta_flags))
3499 goto nla_put_failure;
7eab0f64
JL		 3500 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3501 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3502 sinfo->t_offset))
3503 goto nla_put_failure;
2ec600d6 3504 nla_nest_end(msg, sinfoattr);
fd5b74dc 3505
9360ffd1
DM		 3506 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3507 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3508 sinfo->assoc_req_ies))
3509 goto nla_put_failure;
50d3dfb7 3510
fd5b74dc
JB		 3511 return genlmsg_end(msg, hdr);
3512
3513 nla_put_failure:
bc3ed28c
TG		 3514 genlmsg_cancel(msg, hdr);
3515 return -EMSGSIZE;
fd5b74dc
JB		 3516}
3517
2ec600d6 3518static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3519 struct netlink_callback *cb)
2ec600d6 3520{
2ec600d6
LCC		 3521 struct station_info sinfo;
3522 struct cfg80211_registered_device *dev;
97990a06 3523 struct wireless_dev *wdev;
2ec600d6 3524 u8 mac_addr[ETH_ALEN];
97990a06 3525 int sta_idx = cb->args[2];
2ec600d6 3526 int err;
2ec600d6 3527
97990a06 3528 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3529 if (err)
3530 return err;
bba95fef 3531
97990a06
JB		 3532 if (!wdev->netdev) {
3533 err = -EINVAL;
3534 goto out_err;
3535 }
3536
bba95fef 3537 if (!dev->ops->dump_station) {
eec60b03 3538 err = -EOPNOTSUPP;
bba95fef
JB		 3539 goto out_err;
3540 }
3541
bba95fef 3542 while (1) {
f612cedf 3543 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3544 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3545 mac_addr, &sinfo);
bba95fef
JB		 3546 if (err == -ENOENT)
3547 break;
3548 if (err)
3b85875a 3549 goto out_err;
bba95fef
JB		 3550
3551 if (nl80211_send_station(skb,
15e47304 3552 NETLINK_CB(cb->skb).portid,
bba95fef 3553 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3554 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3555 &sinfo) < 0)
3556 goto out;
3557
3558 sta_idx++;
3559 }
3560
3561
3562 out:
97990a06 3563 cb->args[2] = sta_idx;
bba95fef 3564 err = skb->len;
bba95fef 3565 out_err:
97990a06 3566 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3567
3568 return err;
2ec600d6 3569}
fd5b74dc 3570
5727ef1b
JB		 3571static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3572{
4c476991
JB		 3573 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3574 struct net_device *dev = info->user_ptr[1];
2ec600d6 3575 struct station_info sinfo;
fd5b74dc
JB		 3576 struct sk_buff *msg;
3577 u8 *mac_addr = NULL;
4c476991 3578 int err;
fd5b74dc 3579
2ec600d6 3580 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3581
3582 if (!info->attrs[NL80211_ATTR_MAC])
3583 return -EINVAL;
3584
3585 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3586
4c476991
JB		 3587 if (!rdev->ops->get_station)
3588 return -EOPNOTSUPP;
3b85875a 3589
e35e4d28 3590 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3591 if (err)
4c476991 3592 return err;
2ec600d6 3593
fd2120ca 3594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3595 if (!msg)
4c476991 3596 return -ENOMEM;
fd5b74dc 3597
15e47304 3598 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3599 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3600 nlmsg_free(msg);
3601 return -ENOBUFS;
3602 }
3b85875a 3603
4c476991 3604 return genlmsg_reply(msg, info);
5727ef1b
JB		 3605}
3606
77ee7c89
JB		 3607int cfg80211_check_station_change(struct wiphy *wiphy,
3608 struct station_parameters *params,
3609 enum cfg80211_station_type statype)
3610{
3611 if (params->listen_interval != -1)
3612 return -EINVAL;
3613 if (params->aid)
3614 return -EINVAL;
3615
3616 /* When you run into this, adjust the code below for the new flag */
3617 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3618
3619 switch (statype) {
eef941e6
TP		 3620 case CFG80211_STA_MESH_PEER_KERNEL:
3621 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3622 /*
3623 * No ignoring the TDLS flag here -- the userspace mesh
3624 * code doesn't have the bug of including TDLS in the
3625 * mask everywhere.
3626 */
3627 if (params->sta_flags_mask &
3628 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3629 BIT(NL80211_STA_FLAG_MFP) |
3630 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3631 return -EINVAL;
3632 break;
3633 case CFG80211_STA_TDLS_PEER_SETUP:
3634 case CFG80211_STA_TDLS_PEER_ACTIVE:
3635 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3636 return -EINVAL;
3637 /* ignore since it can't change */
3638 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3639 break;
3640 default:
3641 /* disallow mesh-specific things */
3642 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3643 return -EINVAL;
3644 if (params->local_pm)
3645 return -EINVAL;
3646 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3647 return -EINVAL;
3648 }
3649
3650 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3651 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3652 /* TDLS can't be set, ... */
3653 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3654 return -EINVAL;
3655 /*
3656 * ... but don't bother the driver with it. This works around
3657 * a hostapd/wpa_supplicant issue -- it always includes the
3658 * TLDS_PEER flag in the mask even for AP mode.
3659 */
3660 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3661 }
3662
3663 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3664 /* reject other things that can't change */
3665 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3666 return -EINVAL;
3667 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3668 return -EINVAL;
3669 if (params->supported_rates)
3670 return -EINVAL;
3671 if (params->ext_capab || params->ht_capa || params->vht_capa)
3672 return -EINVAL;
3673 }
3674
3675 if (statype != CFG80211_STA_AP_CLIENT) {
3676 if (params->vlan)
3677 return -EINVAL;
3678 }
3679
3680 switch (statype) {
3681 case CFG80211_STA_AP_MLME_CLIENT:
3682 /* Use this only for authorizing/unauthorizing a station */
3683 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3684 return -EOPNOTSUPP;
3685 break;
3686 case CFG80211_STA_AP_CLIENT:
3687 /* accept only the listed bits */
3688 if (params->sta_flags_mask &
3689 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3690 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3691 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3692 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3693 BIT(NL80211_STA_FLAG_WME) |
3694 BIT(NL80211_STA_FLAG_MFP)))
3695 return -EINVAL;
3696
3697 /* but authenticated/associated only if driver handles it */
3698 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3699 params->sta_flags_mask &
3700 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3701 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3702 return -EINVAL;
3703 break;
3704 case CFG80211_STA_IBSS:
3705 case CFG80211_STA_AP_STA:
3706 /* reject any changes other than AUTHORIZED */
3707 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3708 return -EINVAL;
3709 break;
3710 case CFG80211_STA_TDLS_PEER_SETUP:
3711 /* reject any changes other than AUTHORIZED or WME */
3712 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3713 BIT(NL80211_STA_FLAG_WME)))
3714 return -EINVAL;
3715 /* force (at least) rates when authorizing */
3716 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3717 !params->supported_rates)
3718 return -EINVAL;
3719 break;
3720 case CFG80211_STA_TDLS_PEER_ACTIVE:
3721 /* reject any changes */
3722 return -EINVAL;
eef941e6 3723 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3724 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3725 return -EINVAL;
3726 break;
eef941e6 3727 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3728 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3729 return -EINVAL;
3730 break;
3731 }
3732
3733 return 0;
3734}
3735EXPORT_SYMBOL(cfg80211_check_station_change);
3736
5727ef1b 3737/*
c258d2de 3738 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3739 */
80b99899
JB		 3740static struct net_device *get_vlan(struct genl_info *info,
3741 struct cfg80211_registered_device *rdev)
5727ef1b 3742{
463d0183 3743 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3744 struct net_device *v;
3745 int ret;
3746
3747 if (!vlanattr)
3748 return NULL;
3749
3750 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3751 if (!v)
3752 return ERR_PTR(-ENODEV);
3753
3754 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3755 ret = -EINVAL;
3756 goto error;
5727ef1b 3757 }
80b99899 3758
77ee7c89
JB		 3759 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3760 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3761 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3762 ret = -EINVAL;
3763 goto error;
3764 }
3765
80b99899
JB		 3766 if (!netif_running(v)) {
3767 ret = -ENETDOWN;
3768 goto error;
3769 }
3770
3771 return v;
3772 error:
3773 dev_put(v);
3774 return ERR_PTR(ret);
5727ef1b
JB		 3775}
3776
df881293
JM		 3777static struct nla_policy
3778nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3779 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3780 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3781};
3782
ff276691
JB		 3783static int nl80211_parse_sta_wme(struct genl_info *info,
3784 struct station_parameters *params)
df881293 3785{
df881293
JM		 3786 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3787 struct nlattr *nla;
3788 int err;
3789
df881293
JM		 3790 /* parse WME attributes if present */
3791 if (!info->attrs[NL80211_ATTR_STA_WME])
3792 return 0;
3793
3794 nla = info->attrs[NL80211_ATTR_STA_WME];
3795 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3796 nl80211_sta_wme_policy);
3797 if (err)
3798 return err;
3799
3800 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3801 params->uapsd_queues = nla_get_u8(
3802 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3803 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3804 return -EINVAL;
3805
3806 if (tb[NL80211_STA_WME_MAX_SP])
3807 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3808
3809 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3810 return -EINVAL;
3811
3812 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3813
3814 return 0;
3815}
3816
ff276691
JB		 3817static int nl80211_set_station_tdls(struct genl_info *info,
3818 struct station_parameters *params)
3819{
3820 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 3821 if (info->attrs[NL80211_ATTR_PEER_AID])
3822 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 3823 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3824 params->ht_capa =
3825 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3826 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3827 params->vht_capa =
3828 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3829
3830 return nl80211_parse_sta_wme(info, params);
3831}
3832
5727ef1b
JB		 3833static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3834{
4c476991 3835 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3836 struct net_device *dev = info->user_ptr[1];
5727ef1b 3837 struct station_parameters params;
77ee7c89
JB		 3838 u8 *mac_addr;
3839 int err;
5727ef1b
JB		 3840
3841 memset(&params, 0, sizeof(params));
3842
3843 params.listen_interval = -1;
3844
77ee7c89
JB		 3845 if (!rdev->ops->change_station)
3846 return -EOPNOTSUPP;
3847
5727ef1b
JB		 3848 if (info->attrs[NL80211_ATTR_STA_AID])
3849 return -EINVAL;
3850
3851 if (!info->attrs[NL80211_ATTR_MAC])
3852 return -EINVAL;
3853
3854 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3855
3856 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3857 params.supported_rates =
3858 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3859 params.supported_rates_len =
3860 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3861 }
3862
9d62a986
JM		 3863 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3864 params.capability =
3865 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3866 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3867 }
3868
3869 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3870 params.ext_capab =
3871 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3872 params.ext_capab_len =
3873 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3874 }
3875
df881293 3876 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3877 return -EINVAL;
36aedc90 3878
bdd3ae3d 3879 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3880 return -EINVAL;
3881
f8bacc21 3882 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3883 params.plink_action =
f8bacc21
JB		 3884 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3885 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3886 return -EINVAL;
3887 }
2ec600d6 3888
f8bacc21 3889 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3890 params.plink_state =
f8bacc21
JB		 3891 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3892 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3893 return -EINVAL;
3894 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3895 }
9c3990aa 3896
3b1c5a53
MP		 3897 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3898 enum nl80211_mesh_power_mode pm = nla_get_u32(
3899 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3900
3901 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3902 pm > NL80211_MESH_POWER_MAX)
3903 return -EINVAL;
3904
3905 params.local_pm = pm;
3906 }
3907
77ee7c89
JB		 3908 /* Include parameters for TDLS peer (will check later) */
3909 err = nl80211_set_station_tdls(info, &params);
3910 if (err)
3911 return err;
3912
3913 params.vlan = get_vlan(info, rdev);
3914 if (IS_ERR(params.vlan))
3915 return PTR_ERR(params.vlan);
3916
a97f4424
JB		 3917 switch (dev->ieee80211_ptr->iftype) {
3918 case NL80211_IFTYPE_AP:
3919 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3920 case NL80211_IFTYPE_P2P_GO:
074ac8df 3921 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3922 case NL80211_IFTYPE_STATION:
267335d6 3923 case NL80211_IFTYPE_ADHOC:
a97f4424 3924 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 3925 break;
3926 default:
77ee7c89
JB		 3927 err = -EOPNOTSUPP;
3928 goto out_put_vlan;
034d655e
JB		 3929 }
3930
77ee7c89 3931 /* driver will call cfg80211_check_station_change() */
e35e4d28 3932 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3933
77ee7c89 3934 out_put_vlan:
5727ef1b
JB		 3935 if (params.vlan)
3936 dev_put(params.vlan);
3b85875a 3937
5727ef1b
JB		 3938 return err;
3939}
3940
3941static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3942{
4c476991 3943 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3944 int err;
4c476991 3945 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3946 struct station_parameters params;
3947 u8 *mac_addr = NULL;
3948
3949 memset(&params, 0, sizeof(params));
3950
984c311b
JB		 3951 if (!rdev->ops->add_station)
3952 return -EOPNOTSUPP;
3953
5727ef1b
JB		 3954 if (!info->attrs[NL80211_ATTR_MAC])
3955 return -EINVAL;
3956
5727ef1b
JB		 3957 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3958 return -EINVAL;
3959
3960 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3961 return -EINVAL;
3962
5e4b6f56
JM		 3963 if (!info->attrs[NL80211_ATTR_STA_AID] &&
3964 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 3965 return -EINVAL;
3966
5727ef1b
JB		 3967 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3968 params.supported_rates =
3969 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3970 params.supported_rates_len =
3971 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3972 params.listen_interval =
3973 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3974
5e4b6f56
JM		 3975 if (info->attrs[NL80211_ATTR_STA_AID])
3976 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3977 else
3978 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
0e956c13
TLSC		 3979 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3980 return -EINVAL;
51b50fbe 3981
9d62a986
JM		 3982 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3983 params.capability =
3984 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3985 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3986 }
3987
3988 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3989 params.ext_capab =
3990 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3991 params.ext_capab_len =
3992 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3993 }
3994
36aedc90
JM		 3995 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3996 params.ht_capa =
3997 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3998
f461be3e
MP		 3999 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4000 params.vht_capa =
4001 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4002
f8bacc21 4003 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4004 params.plink_action =
f8bacc21
JB		 4005 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4006 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4007 return -EINVAL;
4008 }
96b78dff 4009
ff276691
JB		 4010 err = nl80211_parse_sta_wme(info, &params);
4011 if (err)
4012 return err;
bdd90d5e 4013
bdd3ae3d 4014 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4015 return -EINVAL;
4016
77ee7c89
JB		 4017 /* When you run into this, adjust the code below for the new flag */
4018 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4019
bdd90d5e
JB		 4020 switch (dev->ieee80211_ptr->iftype) {
4021 case NL80211_IFTYPE_AP:
4022 case NL80211_IFTYPE_AP_VLAN:
4023 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4024 /* ignore WME attributes if iface/sta is not capable */
4025 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4026 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4027 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4028
bdd90d5e
JB		 4029 /* TDLS peers cannot be added */
4030 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 4031 return -EINVAL;
bdd90d5e
JB		 4032 /* but don't bother the driver with it */
4033 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4034
d582cffb
JB		 4035 /* allow authenticated/associated only if driver handles it */
4036 if (!(rdev->wiphy.features &
4037 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4038 params.sta_flags_mask &
4039 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4040 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4041 return -EINVAL;
4042
bdd90d5e
JB		 4043 /* must be last in here for error handling */
4044 params.vlan = get_vlan(info, rdev);
4045 if (IS_ERR(params.vlan))
4046 return PTR_ERR(params.vlan);
4047 break;
4048 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4049 /* ignore uAPSD data */
4050 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4051
d582cffb
JB		 4052 /* associated is disallowed */
4053 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4054 return -EINVAL;
bdd90d5e
JB		 4055 /* TDLS peers cannot be added */
4056 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4057 return -EINVAL;
4058 break;
4059 case NL80211_IFTYPE_STATION:
93d08f0b 4060 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4061 /* ignore uAPSD data */
4062 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4063
77ee7c89
JB		 4064 /* these are disallowed */
4065 if (params.sta_flags_mask &
4066 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4067 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4068 return -EINVAL;
bdd90d5e
JB		 4069 /* Only TDLS peers can be added */
4070 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4071 return -EINVAL;
4072 /* Can only add if TDLS ... */
4073 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4074 return -EOPNOTSUPP;
4075 /* ... with external setup is supported */
4076 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4077 return -EOPNOTSUPP;
77ee7c89
JB		 4078 /*
4079 * Older wpa_supplicant versions always mark the TDLS peer
4080 * as authorized, but it shouldn't yet be.
4081 */
4082 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4083 break;
4084 default:
4085 return -EOPNOTSUPP;
c75786c9
EP		 4086 }
4087
bdd90d5e 4088 /* be aware of params.vlan when changing code here */
5727ef1b 4089
e35e4d28 4090 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4091
5727ef1b
JB		 4092 if (params.vlan)
4093 dev_put(params.vlan);
5727ef1b
JB		 4094 return err;
4095}
4096
4097static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4098{
4c476991
JB		 4099 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4100 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4101 u8 *mac_addr = NULL;
4102
4103 if (info->attrs[NL80211_ATTR_MAC])
4104 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4105
e80cf853 4106 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4107 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4108 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4109 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4110 return -EINVAL;
5727ef1b 4111
4c476991
JB		 4112 if (!rdev->ops->del_station)
4113 return -EOPNOTSUPP;
3b85875a 4114
e35e4d28 4115 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4116}
4117
15e47304 4118static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4119 int flags, struct net_device *dev,
4120 u8 *dst, u8 *next_hop,
4121 struct mpath_info *pinfo)
4122{
4123 void *hdr;
4124 struct nlattr *pinfoattr;
4125
15e47304 4126 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4127 if (!hdr)
4128 return -1;
4129
9360ffd1
DM		 4130 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4131 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4132 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4133 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4134 goto nla_put_failure;
f5ea9120 4135
2ec600d6
LCC		 4136 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4137 if (!pinfoattr)
4138 goto nla_put_failure;
9360ffd1
DM		 4139 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4140 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4141 pinfo->frame_qlen))
4142 goto nla_put_failure;
4143 if (((pinfo->filled & MPATH_INFO_SN) &&
4144 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4145 ((pinfo->filled & MPATH_INFO_METRIC) &&
4146 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4147 pinfo->metric)) ||
4148 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4149 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4150 pinfo->exptime)) ||
4151 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4152 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4153 pinfo->flags)) ||
4154 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4155 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4156 pinfo->discovery_timeout)) ||
4157 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4158 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4159 pinfo->discovery_retries)))
4160 goto nla_put_failure;
2ec600d6
LCC		 4161
4162 nla_nest_end(msg, pinfoattr);
4163
4164 return genlmsg_end(msg, hdr);
4165
4166 nla_put_failure:
bc3ed28c
TG		 4167 genlmsg_cancel(msg, hdr);
4168 return -EMSGSIZE;
2ec600d6
LCC		 4169}
4170
4171static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4172 struct netlink_callback *cb)
2ec600d6 4173{
2ec600d6
LCC		 4174 struct mpath_info pinfo;
4175 struct cfg80211_registered_device *dev;
97990a06 4176 struct wireless_dev *wdev;
2ec600d6
LCC		 4177 u8 dst[ETH_ALEN];
4178 u8 next_hop[ETH_ALEN];
97990a06 4179 int path_idx = cb->args[2];
2ec600d6 4180 int err;
2ec600d6 4181
97990a06 4182 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4183 if (err)
4184 return err;
bba95fef
JB		 4185
4186 if (!dev->ops->dump_mpath) {
eec60b03 4187 err = -EOPNOTSUPP;
bba95fef
JB		 4188 goto out_err;
4189 }
4190
97990a06 4191 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4192 err = -EOPNOTSUPP;
0448b5fc 4193 goto out_err;
eec60b03
JM		 4194 }
4195
bba95fef 4196 while (1) {
97990a06
JB		 4197 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4198 next_hop, &pinfo);
bba95fef 4199 if (err == -ENOENT)
2ec600d6 4200 break;
bba95fef 4201 if (err)
3b85875a 4202 goto out_err;
2ec600d6 4203
15e47304 4204 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4205 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4206 wdev->netdev, dst, next_hop,
bba95fef
JB		 4207 &pinfo) < 0)
4208 goto out;
2ec600d6 4209
bba95fef 4210 path_idx++;
2ec600d6 4211 }
2ec600d6 4212
2ec600d6 4213
bba95fef 4214 out:
97990a06 4215 cb->args[2] = path_idx;
bba95fef 4216 err = skb->len;
bba95fef 4217 out_err:
97990a06 4218 nl80211_finish_wdev_dump(dev);
bba95fef 4219 return err;
2ec600d6
LCC		 4220}
4221
4222static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4223{
4c476991 4224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4225 int err;
4c476991 4226 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4227 struct mpath_info pinfo;
4228 struct sk_buff *msg;
4229 u8 *dst = NULL;
4230 u8 next_hop[ETH_ALEN];
4231
4232 memset(&pinfo, 0, sizeof(pinfo));
4233
4234 if (!info->attrs[NL80211_ATTR_MAC])
4235 return -EINVAL;
4236
4237 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4238
4c476991
JB		 4239 if (!rdev->ops->get_mpath)
4240 return -EOPNOTSUPP;
2ec600d6 4241
4c476991
JB		 4242 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4243 return -EOPNOTSUPP;
eec60b03 4244
e35e4d28 4245 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4246 if (err)
4c476991 4247 return err;
2ec600d6 4248
fd2120ca 4249 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4250 if (!msg)
4c476991 4251 return -ENOMEM;
2ec600d6 4252
15e47304 4253 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4254 dev, dst, next_hop, &pinfo) < 0) {
4255 nlmsg_free(msg);
4256 return -ENOBUFS;
4257 }
3b85875a 4258
4c476991 4259 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4260}
4261
4262static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4263{
4c476991
JB		 4264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4265 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4266 u8 *dst = NULL;
4267 u8 *next_hop = NULL;
4268
4269 if (!info->attrs[NL80211_ATTR_MAC])
4270 return -EINVAL;
4271
4272 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4273 return -EINVAL;
4274
4275 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4276 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4277
4c476991
JB		 4278 if (!rdev->ops->change_mpath)
4279 return -EOPNOTSUPP;
35a8efe1 4280
4c476991
JB		 4281 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4282 return -EOPNOTSUPP;
2ec600d6 4283
e35e4d28 4284 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4285}
4c476991 4286
2ec600d6
LCC		 4287static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4288{
4c476991
JB		 4289 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4290 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4291 u8 *dst = NULL;
4292 u8 *next_hop = NULL;
4293
4294 if (!info->attrs[NL80211_ATTR_MAC])
4295 return -EINVAL;
4296
4297 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4298 return -EINVAL;
4299
4300 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4301 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4302
4c476991
JB		 4303 if (!rdev->ops->add_mpath)
4304 return -EOPNOTSUPP;
35a8efe1 4305
4c476991
JB		 4306 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4307 return -EOPNOTSUPP;
2ec600d6 4308
e35e4d28 4309 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4310}
4311
4312static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4313{
4c476991
JB		 4314 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4315 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4316 u8 *dst = NULL;
4317
4318 if (info->attrs[NL80211_ATTR_MAC])
4319 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4320
4c476991
JB		 4321 if (!rdev->ops->del_mpath)
4322 return -EOPNOTSUPP;
3b85875a 4323
e35e4d28 4324 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4325}
4326
9f1ba906
JM		 4327static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4328{
4c476991
JB		 4329 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4330 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4331 struct bss_parameters params;
4332
4333 memset(&params, 0, sizeof(params));
4334 /* default to not changing parameters */
4335 params.use_cts_prot = -1;
4336 params.use_short_preamble = -1;
4337 params.use_short_slot_time = -1;
fd8aaaf3 4338 params.ap_isolate = -1;
50b12f59 4339 params.ht_opmode = -1;
53cabad7
JB		 4340 params.p2p_ctwindow = -1;
4341 params.p2p_opp_ps = -1;
9f1ba906
JM		 4342
4343 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4344 params.use_cts_prot =
4345 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4346 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4347 params.use_short_preamble =
4348 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4349 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4350 params.use_short_slot_time =
4351 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4352 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4353 params.basic_rates =
4354 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4355 params.basic_rates_len =
4356 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4357 }
fd8aaaf3
FF		 4358 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4359 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4360 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4361 params.ht_opmode =
4362 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4363
53cabad7
JB		 4364 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4365 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4366 return -EINVAL;
4367 params.p2p_ctwindow =
4368 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4369 if (params.p2p_ctwindow < 0)
4370 return -EINVAL;
4371 if (params.p2p_ctwindow != 0 &&
4372 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4373 return -EINVAL;
4374 }
4375
4376 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4377 u8 tmp;
4378
4379 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4380 return -EINVAL;
4381 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4382 if (tmp > 1)
4383 return -EINVAL;
4384 params.p2p_opp_ps = tmp;
4385 if (params.p2p_opp_ps &&
4386 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4387 return -EINVAL;
4388 }
4389
4c476991
JB		 4390 if (!rdev->ops->change_bss)
4391 return -EOPNOTSUPP;
9f1ba906 4392
074ac8df 4393 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4394 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4395 return -EOPNOTSUPP;
3b85875a 4396
e35e4d28 4397 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4398}
4399
b54452b0 4400static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4401 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4402 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4403 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4404 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4405 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4406 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4407};
4408
4409static int parse_reg_rule(struct nlattr *tb[],
4410 struct ieee80211_reg_rule *reg_rule)
4411{
4412 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4413 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4414
4415 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4416 return -EINVAL;
4417 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4418 return -EINVAL;
4419 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4420 return -EINVAL;
4421 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4422 return -EINVAL;
4423 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4424 return -EINVAL;
4425
4426 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4427
4428 freq_range->start_freq_khz =
4429 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4430 freq_range->end_freq_khz =
4431 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4432 freq_range->max_bandwidth_khz =
4433 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4434
4435 power_rule->max_eirp =
4436 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4437
4438 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4439 power_rule->max_antenna_gain =
4440 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4441
4442 return 0;
4443}
4444
4445static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4446{
4447 int r;
4448 char *data = NULL;
57b5ce07 4449 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4450
80778f18
LR		 4451 /*
4452 * You should only get this when cfg80211 hasn't yet initialized
4453 * completely when built-in to the kernel right between the time
4454 * window between nl80211_init() and regulatory_init(), if that is
4455 * even possible.
4456 */
458f4f9e 4457 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4458 return -EINPROGRESS;
80778f18 4459
fe33eb39
LR		 4460 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4461 return -EINVAL;
b2e1b302
LR		 4462
4463 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4464
57b5ce07
LR		 4465 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4466 user_reg_hint_type =
4467 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4468 else
4469 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4470
4471 switch (user_reg_hint_type) {
4472 case NL80211_USER_REG_HINT_USER:
4473 case NL80211_USER_REG_HINT_CELL_BASE:
4474 break;
4475 default:
4476 return -EINVAL;
4477 }
4478
4479 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4480
b2e1b302
LR		 4481 return r;
4482}
4483
24bdd9f4 4484static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4485 struct genl_info *info)
93da9cc1 4486{
4c476991 4487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4488 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4489 struct wireless_dev *wdev = dev->ieee80211_ptr;
4490 struct mesh_config cur_params;
4491 int err = 0;
93da9cc1 4492 void *hdr;
4493 struct nlattr *pinfoattr;
4494 struct sk_buff *msg;
4495
29cbe68c
JB		 4496 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4497 return -EOPNOTSUPP;
4498
24bdd9f4 4499 if (!rdev->ops->get_mesh_config)
4c476991 4500 return -EOPNOTSUPP;
f3f92586 4501
29cbe68c
JB		 4502 wdev_lock(wdev);
4503 /* If not connected, get default parameters */
4504 if (!wdev->mesh_id_len)
4505 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4506 else
e35e4d28 4507 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4508 wdev_unlock(wdev);
4509
93da9cc1 4510 if (err)
4c476991 4511 return err;
93da9cc1 4512
4513 /* Draw up a netlink message to send back */
fd2120ca 4514 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4515 if (!msg)
4516 return -ENOMEM;
15e47304 4517 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4518 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4519 if (!hdr)
efe1cf0c 4520 goto out;
24bdd9f4 4521 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4522 if (!pinfoattr)
4523 goto nla_put_failure;
9360ffd1
DM		 4524 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4525 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4526 cur_params.dot11MeshRetryTimeout) ||
4527 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4528 cur_params.dot11MeshConfirmTimeout) ||
4529 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4530 cur_params.dot11MeshHoldingTimeout) ||
4531 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4532 cur_params.dot11MeshMaxPeerLinks) ||
4533 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4534 cur_params.dot11MeshMaxRetries) ||
4535 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4536 cur_params.dot11MeshTTL) ||
4537 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4538 cur_params.element_ttl) ||
4539 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4540 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4541 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4542 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4543 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4544 cur_params.dot11MeshHWMPmaxPREQretries) ||
4545 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4546 cur_params.path_refresh_time) ||
4547 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4548 cur_params.min_discovery_timeout) ||
4549 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4550 cur_params.dot11MeshHWMPactivePathTimeout) ||
4551 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4552 cur_params.dot11MeshHWMPpreqMinInterval) ||
4553 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4554 cur_params.dot11MeshHWMPperrMinInterval) ||
4555 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4556 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4557 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4558 cur_params.dot11MeshHWMPRootMode) ||
4559 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4560 cur_params.dot11MeshHWMPRannInterval) ||
4561 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4562 cur_params.dot11MeshGateAnnouncementProtocol) ||
4563 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4564 cur_params.dot11MeshForwarding) ||
4565 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4566 cur_params.rssi_threshold) ||
4567 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4568 cur_params.ht_opmode) ||
4569 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4570 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4571 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4572 cur_params.dot11MeshHWMProotInterval) ||
4573 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4574 cur_params.dot11MeshHWMPconfirmationInterval) ||
4575 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4576 cur_params.power_mode) ||
4577 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4578 cur_params.dot11MeshAwakeWindowDuration) ||
4579 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4580 cur_params.plink_timeout))
9360ffd1 4581 goto nla_put_failure;
93da9cc1 4582 nla_nest_end(msg, pinfoattr);
4583 genlmsg_end(msg, hdr);
4c476991 4584 return genlmsg_reply(msg, info);
93da9cc1 4585
3b85875a 4586 nla_put_failure:
93da9cc1 4587 genlmsg_cancel(msg, hdr);
efe1cf0c 4588 out:
d080e275 4589 nlmsg_free(msg);
4c476991 4590 return -ENOBUFS;
93da9cc1 4591}
4592
b54452b0 4593static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4594 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4595 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4596 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4597 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4598 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4599 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4600 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4601 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4602 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4603 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4604 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4605 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4606 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4607 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4608 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4609 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4610 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4611 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4612 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4613 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4614 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4615 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4616 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4617 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4618 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4619 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4620 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4621 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4622};
4623
c80d545d
JC		 4624static const struct nla_policy
4625 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4626 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4627 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4628 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4629 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4630 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4631 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4632 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4633 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4634 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4635};
4636
24bdd9f4 4637static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4638 struct mesh_config *cfg,
4639 u32 *mask_out)
93da9cc1 4640{
93da9cc1 4641 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4642 u32 mask = 0;
93da9cc1 4643
ea54fba2
MP		 4644#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4645do { \
4646 if (tb[attr]) { \
4647 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4648 return -EINVAL; \
4649 cfg->param = fn(tb[attr]); \
4650 mask |= (1 << (attr - 1)); \
4651 } \
4652} while (0)
bd90fdcc
JB		 4653
4654
24bdd9f4 4655 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4656 return -EINVAL;
4657 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4658 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4659 nl80211_meshconf_params_policy))
93da9cc1 4660 return -EINVAL;
4661
93da9cc1 4662 /* This makes sure that there aren't more than 32 mesh config
4663 * parameters (otherwise our bitfield scheme would not work.) */
4664 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4665
4666 /* Fill in the params struct */
ea54fba2 4667 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4668 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4669 nla_get_u16);
ea54fba2 4670 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4671 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4672 nla_get_u16);
ea54fba2 4673 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4674 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4675 nla_get_u16);
ea54fba2 4676 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4677 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4678 nla_get_u16);
ea54fba2 4679 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4680 mask, NL80211_MESHCONF_MAX_RETRIES,
4681 nla_get_u8);
ea54fba2 4682 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4683 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4684 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4685 mask, NL80211_MESHCONF_ELEMENT_TTL,
4686 nla_get_u8);
ea54fba2 4687 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4688 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4689 nla_get_u8);
ea54fba2
MP		 4690 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4691 1, 255, mask,
a4f606ea
CYY		 4692 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4693 nla_get_u32);
ea54fba2 4694 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4695 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4696 nla_get_u8);
ea54fba2 4697 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4698 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4699 nla_get_u32);
ea54fba2 4700 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4701 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4702 nla_get_u16);
ea54fba2
MP		 4703 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4704 1, 65535, mask,
a4f606ea
CYY		 4705 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4706 nla_get_u32);
93da9cc1 4707 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4708 1, 65535, mask,
4709 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4710 nla_get_u16);
dca7e943 4711 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4712 1, 65535, mask,
4713 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4714 nla_get_u16);
93da9cc1 4715 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4716 dot11MeshHWMPnetDiameterTraversalTime,
4717 1, 65535, mask,
a4f606ea
CYY		 4718 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4719 nla_get_u16);
ea54fba2
MP		 4720 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4721 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4722 nla_get_u8);
4723 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4724 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4725 nla_get_u16);
63c5723b 4726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4727 dot11MeshGateAnnouncementProtocol, 0, 1,
4728 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4729 nla_get_u8);
ea54fba2 4730 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4731 mask, NL80211_MESHCONF_FORWARDING,
4732 nla_get_u8);
ea54fba2 4733 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4734 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4735 nla_get_u32);
ea54fba2 4736 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4737 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4738 nla_get_u16);
4739 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4740 1, 65535, mask,
ac1073a6
CYY		 4741 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4742 nla_get_u32);
ea54fba2 4743 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4744 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4745 nla_get_u16);
4746 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4747 dot11MeshHWMPconfirmationInterval,
4748 1, 65535, mask,
728b19e5 4749 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4750 nla_get_u16);
3b1c5a53
MP		 4751 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4752 NL80211_MESH_POWER_ACTIVE,
4753 NL80211_MESH_POWER_MAX,
4754 mask, NL80211_MESHCONF_POWER_MODE,
4755 nla_get_u32);
4756 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4757 0, 65535, mask,
4758 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 4759 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4760 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4761 nla_get_u32);
bd90fdcc
JB		 4762 if (mask_out)
4763 *mask_out = mask;
c80d545d 4764
bd90fdcc
JB		 4765 return 0;
4766
4767#undef FILL_IN_MESH_PARAM_IF_SET
4768}
4769
c80d545d
JC		 4770static int nl80211_parse_mesh_setup(struct genl_info *info,
4771 struct mesh_setup *setup)
4772{
bb2798d4 4773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4774 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4775
4776 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4777 return -EINVAL;
4778 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4779 info->attrs[NL80211_ATTR_MESH_SETUP],
4780 nl80211_mesh_setup_params_policy))
4781 return -EINVAL;
4782
d299a1f2
JC		 4783 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4784 setup->sync_method =
4785 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4786 IEEE80211_SYNC_METHOD_VENDOR :
4787 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4788
c80d545d
JC		 4789 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4790 setup->path_sel_proto =
4791 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4792 IEEE80211_PATH_PROTOCOL_VENDOR :
4793 IEEE80211_PATH_PROTOCOL_HWMP;
4794
4795 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4796 setup->path_metric =
4797 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4798 IEEE80211_PATH_METRIC_VENDOR :
4799 IEEE80211_PATH_METRIC_AIRTIME;
4800
581a8b0f
JC		 4801
4802 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4803 struct nlattr *ieattr =
581a8b0f 4804 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4805 if (!is_valid_ie_attr(ieattr))
4806 return -EINVAL;
581a8b0f
JC		 4807 setup->ie = nla_data(ieattr);
4808 setup->ie_len = nla_len(ieattr);
c80d545d 4809 }
bb2798d4
TP		 4810 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4811 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4812 return -EINVAL;
4813 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 4814 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4815 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 4816 if (setup->is_secure)
4817 setup->user_mpm = true;
c80d545d 4818
6e16d90b
CT		 4819 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4820 if (!setup->user_mpm)
4821 return -EINVAL;
4822 setup->auth_id =
4823 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4824 }
4825
c80d545d
JC		 4826 return 0;
4827}
4828
24bdd9f4 4829static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4830 struct genl_info *info)
bd90fdcc
JB		 4831{
4832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4833 struct net_device *dev = info->user_ptr[1];
29cbe68c 4834 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4835 struct mesh_config cfg;
4836 u32 mask;
4837 int err;
4838
29cbe68c
JB		 4839 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4840 return -EOPNOTSUPP;
4841
24bdd9f4 4842 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4843 return -EOPNOTSUPP;
4844
24bdd9f4 4845 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4846 if (err)
4847 return err;
4848
29cbe68c
JB		 4849 wdev_lock(wdev);
4850 if (!wdev->mesh_id_len)
4851 err = -ENOLINK;
4852
4853 if (!err)
e35e4d28 4854 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4855
4856 wdev_unlock(wdev);
4857
4858 return err;
93da9cc1 4859}
4860
f130347c
LR		 4861static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4862{
458f4f9e 4863 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4864 struct sk_buff *msg;
4865 void *hdr = NULL;
4866 struct nlattr *nl_reg_rules;
4867 unsigned int i;
f130347c
LR		 4868
4869 if (!cfg80211_regdomain)
5fe231e8 4870 return -EINVAL;
f130347c 4871
fd2120ca 4872 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 4873 if (!msg)
4874 return -ENOBUFS;
f130347c 4875
15e47304 4876 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4877 NL80211_CMD_GET_REG);
4878 if (!hdr)
efe1cf0c 4879 goto put_failure;
f130347c 4880
57b5ce07
LR		 4881 if (reg_last_request_cell_base() &&
4882 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4883 NL80211_USER_REG_HINT_CELL_BASE))
4884 goto nla_put_failure;
4885
458f4f9e
JB		 4886 rcu_read_lock();
4887 regdom = rcu_dereference(cfg80211_regdomain);
4888
4889 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4890 (regdom->dfs_region &&
4891 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4892 goto nla_put_failure_rcu;
4893
f130347c
LR		 4894 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4895 if (!nl_reg_rules)
458f4f9e 4896 goto nla_put_failure_rcu;
f130347c 4897
458f4f9e 4898 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4899 struct nlattr *nl_reg_rule;
4900 const struct ieee80211_reg_rule *reg_rule;
4901 const struct ieee80211_freq_range *freq_range;
4902 const struct ieee80211_power_rule *power_rule;
4903
458f4f9e 4904 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4905 freq_range = &reg_rule->freq_range;
4906 power_rule = &reg_rule->power_rule;
4907
4908 nl_reg_rule = nla_nest_start(msg, i);
4909 if (!nl_reg_rule)
458f4f9e 4910 goto nla_put_failure_rcu;
f130347c 4911
9360ffd1
DM		 4912 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4913 reg_rule->flags) ||
4914 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4915 freq_range->start_freq_khz) ||
4916 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4917 freq_range->end_freq_khz) ||
4918 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4919 freq_range->max_bandwidth_khz) ||
4920 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4921 power_rule->max_antenna_gain) ||
4922 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4923 power_rule->max_eirp))
458f4f9e 4924 goto nla_put_failure_rcu;
f130347c
LR		 4925
4926 nla_nest_end(msg, nl_reg_rule);
4927 }
458f4f9e 4928 rcu_read_unlock();
f130347c
LR		 4929
4930 nla_nest_end(msg, nl_reg_rules);
4931
4932 genlmsg_end(msg, hdr);
5fe231e8 4933 return genlmsg_reply(msg, info);
f130347c 4934
458f4f9e
JB		 4935nla_put_failure_rcu:
4936 rcu_read_unlock();
f130347c
LR		 4937nla_put_failure:
4938 genlmsg_cancel(msg, hdr);
efe1cf0c 4939put_failure:
d080e275 4940 nlmsg_free(msg);
5fe231e8 4941 return -EMSGSIZE;
f130347c
LR		 4942}
4943
b2e1b302
LR		 4944static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4945{
4946 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4947 struct nlattr *nl_reg_rule;
4948 char *alpha2 = NULL;
4949 int rem_reg_rules = 0, r = 0;
4950 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4951 u8 dfs_region = 0;
b2e1b302
LR		 4952 struct ieee80211_regdomain *rd = NULL;
4953
4954 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4955 return -EINVAL;
4956
4957 if (!info->attrs[NL80211_ATTR_REG_RULES])
4958 return -EINVAL;
4959
4960 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4961
8b60b078
LR		 4962 if (info->attrs[NL80211_ATTR_DFS_REGION])
4963 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4964
b2e1b302 4965 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4966 rem_reg_rules) {
b2e1b302
LR		 4967 num_rules++;
4968 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4969 return -EINVAL;
b2e1b302
LR		 4970 }
4971
b2e1b302 4972 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4973 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4974
4975 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4976 if (!rd)
4977 return -ENOMEM;
b2e1b302
LR		 4978
4979 rd->n_reg_rules = num_rules;
4980 rd->alpha2[0] = alpha2[0];
4981 rd->alpha2[1] = alpha2[1];
4982
8b60b078
LR		 4983 /*
4984 * Disable DFS master mode if the DFS region was
4985 * not supported or known on this kernel.
4986 */
4987 if (reg_supported_dfs_region(dfs_region))
4988 rd->dfs_region = dfs_region;
4989
b2e1b302 4990 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4991 rem_reg_rules) {
b2e1b302 4992 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4993 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4994 reg_rule_policy);
b2e1b302
LR		 4995 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4996 if (r)
4997 goto bad_reg;
4998
4999 rule_idx++;
5000
d0e18f83
LR		 5001 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5002 r = -EINVAL;
b2e1b302 5003 goto bad_reg;
d0e18f83 5004 }
b2e1b302
LR		 5005 }
5006
b2e1b302 5007 r = set_regdom(rd);
6913b49a 5008 /* set_regdom took ownership */
1a919318 5009 rd = NULL;
b2e1b302 5010
d2372b31 5011 bad_reg:
b2e1b302 5012 kfree(rd);
d0e18f83 5013 return r;
b2e1b302
LR		 5014}
5015
83f5e2cf
JB		 5016static int validate_scan_freqs(struct nlattr *freqs)
5017{
5018 struct nlattr *attr1, *attr2;
5019 int n_channels = 0, tmp1, tmp2;
5020
5021 nla_for_each_nested(attr1, freqs, tmp1) {
5022 n_channels++;
5023 /*
5024 * Some hardware has a limited channel list for
5025 * scanning, and it is pretty much nonsensical
5026 * to scan for a channel twice, so disallow that
5027 * and don't require drivers to check that the
5028 * channel list they get isn't longer than what
5029 * they can scan, as long as they can scan all
5030 * the channels they registered at once.
5031 */
5032 nla_for_each_nested(attr2, freqs, tmp2)
5033 if (attr1 != attr2 &&
5034 nla_get_u32(attr1) == nla_get_u32(attr2))
5035 return 0;
5036 }
5037
5038 return n_channels;
5039}
5040
2a519311
JB		 5041static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5042{
4c476991 5043 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5044 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5045 struct cfg80211_scan_request *request;
2a519311
JB		 5046 struct nlattr *attr;
5047 struct wiphy *wiphy;
83f5e2cf 5048 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5049 size_t ie_len;
2a519311 5050
f4a11bb0
JB		 5051 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5052 return -EINVAL;
5053
79c97e97 5054 wiphy = &rdev->wiphy;
2a519311 5055
4c476991
JB		 5056 if (!rdev->ops->scan)
5057 return -EOPNOTSUPP;
2a519311 5058
f9f47529
JB		 5059 if (rdev->scan_req) {
5060 err = -EBUSY;
5061 goto unlock;
5062 }
2a519311
JB		 5063
5064 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5065 n_channels = validate_scan_freqs(
5066 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5067 if (!n_channels) {
5068 err = -EINVAL;
5069 goto unlock;
5070 }
2a519311 5071 } else {
34850ab2 5072 enum ieee80211_band band;
83f5e2cf
JB		 5073 n_channels = 0;
5074
2a519311
JB		 5075 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5076 if (wiphy->bands[band])
5077 n_channels += wiphy->bands[band]->n_channels;
5078 }
5079
5080 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5081 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5082 n_ssids++;
5083
f9f47529
JB		 5084 if (n_ssids > wiphy->max_scan_ssids) {
5085 err = -EINVAL;
5086 goto unlock;
5087 }
2a519311 5088
70692ad2
JM		 5089 if (info->attrs[NL80211_ATTR_IE])
5090 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5091 else
5092 ie_len = 0;
5093
f9f47529
JB		 5094 if (ie_len > wiphy->max_scan_ie_len) {
5095 err = -EINVAL;
5096 goto unlock;
5097 }
18a83659 5098
2a519311 5099 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5100 + sizeof(*request->ssids) * n_ssids
5101 + sizeof(*request->channels) * n_channels
70692ad2 5102 + ie_len, GFP_KERNEL);
f9f47529
JB		 5103 if (!request) {
5104 err = -ENOMEM;
5105 goto unlock;
5106 }
2a519311 5107
2a519311 5108 if (n_ssids)
5ba63533 5109 request->ssids = (void *)&request->channels[n_channels];
2a519311 5110 request->n_ssids = n_ssids;
70692ad2
JM		 5111 if (ie_len) {
5112 if (request->ssids)
5113 request->ie = (void *)(request->ssids + n_ssids);
5114 else
5115 request->ie = (void *)(request->channels + n_channels);
5116 }
2a519311 5117
584991dc 5118 i = 0;
2a519311
JB		 5119 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5120 /* user specified, bail out if channel not found */
2a519311 5121 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5122 struct ieee80211_channel *chan;
5123
5124 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5125
5126 if (!chan) {
2a519311
JB		 5127 err = -EINVAL;
5128 goto out_free;
5129 }
584991dc
JB		 5130
5131 /* ignore disabled channels */
5132 if (chan->flags & IEEE80211_CHAN_DISABLED)
5133 continue;
5134
5135 request->channels[i] = chan;
2a519311
JB		 5136 i++;
5137 }
5138 } else {
34850ab2
JB		 5139 enum ieee80211_band band;
5140
2a519311 5141 /* all channels */
2a519311
JB		 5142 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5143 int j;
5144 if (!wiphy->bands[band])
5145 continue;
5146 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5147 struct ieee80211_channel *chan;
5148
5149 chan = &wiphy->bands[band]->channels[j];
5150
5151 if (chan->flags & IEEE80211_CHAN_DISABLED)
5152 continue;
5153
5154 request->channels[i] = chan;
2a519311
JB		 5155 i++;
5156 }
5157 }
5158 }
5159
584991dc
JB		 5160 if (!i) {
5161 err = -EINVAL;
5162 goto out_free;
5163 }
5164
5165 request->n_channels = i;
5166
2a519311
JB		 5167 i = 0;
5168 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5169 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5170 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5171 err = -EINVAL;
5172 goto out_free;
5173 }
57a27e1d 5174 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5175 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5176 i++;
5177 }
5178 }
5179
70692ad2
JM		 5180 if (info->attrs[NL80211_ATTR_IE]) {
5181 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5182 memcpy((void *)request->ie,
5183 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5184 request->ie_len);
5185 }
5186
34850ab2 5187 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5188 if (wiphy->bands[i])
5189 request->rates[i] =
5190 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5191
5192 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5193 nla_for_each_nested(attr,
5194 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5195 tmp) {
5196 enum ieee80211_band band = nla_type(attr);
5197
84404623 5198 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5199 err = -EINVAL;
5200 goto out_free;
5201 }
5202 err = ieee80211_get_ratemask(wiphy->bands[band],
5203 nla_data(attr),
5204 nla_len(attr),
5205 &request->rates[band]);
5206 if (err)
5207 goto out_free;
5208 }
5209 }
5210
46856bbf 5211 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5212 request->flags = nla_get_u32(
5213 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5214 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5215 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5216 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5217 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5218 err = -EOPNOTSUPP;
5219 goto out_free;
5220 }
5221 }
ed473771 5222
e9f935e3
RM		 5223 request->no_cck =
5224 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5225
fd014284 5226 request->wdev = wdev;
79c97e97 5227 request->wiphy = &rdev->wiphy;
15d6030b 5228 request->scan_start = jiffies;
2a519311 5229
79c97e97 5230 rdev->scan_req = request;
e35e4d28 5231 err = rdev_scan(rdev, request);
2a519311 5232
463d0183 5233 if (!err) {
fd014284
JB		 5234 nl80211_send_scan_start(rdev, wdev);
5235 if (wdev->netdev)
5236 dev_hold(wdev->netdev);
4c476991 5237 } else {
2a519311 5238 out_free:
79c97e97 5239 rdev->scan_req = NULL;
2a519311
JB		 5240 kfree(request);
5241 }
3b85875a 5242
f9f47529 5243 unlock:
2a519311
JB		 5244 return err;
5245}
5246
807f8a8c
LC		 5247static int nl80211_start_sched_scan(struct sk_buff *skb,
5248 struct genl_info *info)
5249{
5250 struct cfg80211_sched_scan_request *request;
5251 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5252 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5253 struct nlattr *attr;
5254 struct wiphy *wiphy;
a1f1c21c 5255 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5256 u32 interval;
807f8a8c
LC		 5257 enum ieee80211_band band;
5258 size_t ie_len;
a1f1c21c 5259 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5260
5261 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5262 !rdev->ops->sched_scan_start)
5263 return -EOPNOTSUPP;
5264
5265 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5266 return -EINVAL;
5267
bbe6ad6d
LC		 5268 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5269 return -EINVAL;
5270
5271 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5272 if (interval == 0)
5273 return -EINVAL;
5274
807f8a8c
LC		 5275 wiphy = &rdev->wiphy;
5276
5277 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5278 n_channels = validate_scan_freqs(
5279 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5280 if (!n_channels)
5281 return -EINVAL;
5282 } else {
5283 n_channels = 0;
5284
5285 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5286 if (wiphy->bands[band])
5287 n_channels += wiphy->bands[band]->n_channels;
5288 }
5289
5290 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5291 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5292 tmp)
5293 n_ssids++;
5294
93b6aa69 5295 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5296 return -EINVAL;
5297
a1f1c21c
LC		 5298 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5299 nla_for_each_nested(attr,
5300 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5301 tmp)
5302 n_match_sets++;
5303
5304 if (n_match_sets > wiphy->max_match_sets)
5305 return -EINVAL;
5306
807f8a8c
LC		 5307 if (info->attrs[NL80211_ATTR_IE])
5308 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5309 else
5310 ie_len = 0;
5311
5a865bad 5312 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5313 return -EINVAL;
5314
c10841ca
LC		 5315 if (rdev->sched_scan_req) {
5316 err = -EINPROGRESS;
5317 goto out;
5318 }
5319
807f8a8c 5320 request = kzalloc(sizeof(*request)
a2cd43c5 5321 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5322 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5323 + sizeof(*request->channels) * n_channels
807f8a8c 5324 + ie_len, GFP_KERNEL);
c10841ca
LC		 5325 if (!request) {
5326 err = -ENOMEM;
5327 goto out;
5328 }
807f8a8c
LC		 5329
5330 if (n_ssids)
5331 request->ssids = (void *)&request->channels[n_channels];
5332 request->n_ssids = n_ssids;
5333 if (ie_len) {
5334 if (request->ssids)
5335 request->ie = (void *)(request->ssids + n_ssids);
5336 else
5337 request->ie = (void *)(request->channels + n_channels);
5338 }
5339
a1f1c21c
LC		 5340 if (n_match_sets) {
5341 if (request->ie)
5342 request->match_sets = (void *)(request->ie + ie_len);
5343 else if (request->ssids)
5344 request->match_sets =
5345 (void *)(request->ssids + n_ssids);
5346 else
5347 request->match_sets =
5348 (void *)(request->channels + n_channels);
5349 }
5350 request->n_match_sets = n_match_sets;
5351
807f8a8c
LC		 5352 i = 0;
5353 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5354 /* user specified, bail out if channel not found */
5355 nla_for_each_nested(attr,
5356 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5357 tmp) {
5358 struct ieee80211_channel *chan;
5359
5360 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5361
5362 if (!chan) {
5363 err = -EINVAL;
5364 goto out_free;
5365 }
5366
5367 /* ignore disabled channels */
5368 if (chan->flags & IEEE80211_CHAN_DISABLED)
5369 continue;
5370
5371 request->channels[i] = chan;
5372 i++;
5373 }
5374 } else {
5375 /* all channels */
5376 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5377 int j;
5378 if (!wiphy->bands[band])
5379 continue;
5380 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5381 struct ieee80211_channel *chan;
5382
5383 chan = &wiphy->bands[band]->channels[j];
5384
5385 if (chan->flags & IEEE80211_CHAN_DISABLED)
5386 continue;
5387
5388 request->channels[i] = chan;
5389 i++;
5390 }
5391 }
5392 }
5393
5394 if (!i) {
5395 err = -EINVAL;
5396 goto out_free;
5397 }
5398
5399 request->n_channels = i;
5400
5401 i = 0;
5402 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5403 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5404 tmp) {
57a27e1d 5405 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5406 err = -EINVAL;
5407 goto out_free;
5408 }
57a27e1d 5409 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5410 memcpy(request->ssids[i].ssid, nla_data(attr),
5411 nla_len(attr));
807f8a8c
LC		 5412 i++;
5413 }
5414 }
5415
a1f1c21c
LC		 5416 i = 0;
5417 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5418 nla_for_each_nested(attr,
5419 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5420 tmp) {
88e920b4 5421 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5422
5423 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5424 nla_data(attr), nla_len(attr),
5425 nl80211_match_policy);
4a4ab0d7 5426 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5427 if (ssid) {
5428 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5429 err = -EINVAL;
5430 goto out_free;
5431 }
5432 memcpy(request->match_sets[i].ssid.ssid,
5433 nla_data(ssid), nla_len(ssid));
5434 request->match_sets[i].ssid.ssid_len =
5435 nla_len(ssid);
5436 }
88e920b4
TP		 5437 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5438 if (rssi)
5439 request->rssi_thold = nla_get_u32(rssi);
5440 else
5441 request->rssi_thold =
5442 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5443 i++;
5444 }
5445 }
5446
807f8a8c
LC		 5447 if (info->attrs[NL80211_ATTR_IE]) {
5448 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5449 memcpy((void *)request->ie,
5450 nla_data(info->attrs[NL80211_ATTR_IE]),
5451 request->ie_len);
5452 }
5453
46856bbf 5454 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5455 request->flags = nla_get_u32(
5456 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5457 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5458 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5459 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5460 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5461 err = -EOPNOTSUPP;
5462 goto out_free;
5463 }
5464 }
ed473771 5465
807f8a8c
LC		 5466 request->dev = dev;
5467 request->wiphy = &rdev->wiphy;
bbe6ad6d 5468 request->interval = interval;
15d6030b 5469 request->scan_start = jiffies;
807f8a8c 5470
e35e4d28 5471 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5472 if (!err) {
5473 rdev->sched_scan_req = request;
5474 nl80211_send_sched_scan(rdev, dev,
5475 NL80211_CMD_START_SCHED_SCAN);
5476 goto out;
5477 }
5478
5479out_free:
5480 kfree(request);
5481out:
5482 return err;
5483}
5484
5485static int nl80211_stop_sched_scan(struct sk_buff *skb,
5486 struct genl_info *info)
5487{
5488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5489
5490 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5491 !rdev->ops->sched_scan_stop)
5492 return -EOPNOTSUPP;
5493
5fe231e8 5494 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5495}
5496
04f39047
SW		 5497static int nl80211_start_radar_detection(struct sk_buff *skb,
5498 struct genl_info *info)
5499{
5500 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5501 struct net_device *dev = info->user_ptr[1];
5502 struct wireless_dev *wdev = dev->ieee80211_ptr;
5503 struct cfg80211_chan_def chandef;
5504 int err;
5505
5506 err = nl80211_parse_chandef(rdev, info, &chandef);
5507 if (err)
5508 return err;
5509
5510 if (wdev->cac_started)
5511 return -EBUSY;
5512
5513 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5514 if (err < 0)
5515 return err;
5516
5517 if (err == 0)
5518 return -EINVAL;
5519
5520 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5521 return -EINVAL;
5522
5523 if (!rdev->ops->start_radar_detection)
5524 return -EOPNOTSUPP;
5525
04f39047
SW		 5526 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5527 chandef.chan, CHAN_MODE_SHARED,
5528 BIT(chandef.width));
5529 if (err)
5fe231e8 5530 return err;
04f39047
SW		 5531
5532 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5533 if (!err) {
5534 wdev->channel = chandef.chan;
5535 wdev->cac_started = true;
5536 wdev->cac_start_time = jiffies;
5537 }
04f39047
SW		 5538 return err;
5539}
5540
9720bb3a
JB		 5541static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5542 u32 seq, int flags,
2a519311 5543 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5544 struct wireless_dev *wdev,
5545 struct cfg80211_internal_bss *intbss)
2a519311 5546{
48ab905d 5547 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5548 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5549 void *hdr;
5550 struct nlattr *bss;
8cef2c9d 5551 bool tsf = false;
48ab905d
JB		 5552
5553 ASSERT_WDEV_LOCK(wdev);
2a519311 5554
15e47304 5555 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5556 NL80211_CMD_NEW_SCAN_RESULTS);
5557 if (!hdr)
5558 return -1;
5559
9720bb3a
JB		 5560 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5561
97990a06
JB		 5562 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5563 goto nla_put_failure;
5564 if (wdev->netdev &&
9360ffd1
DM		 5565 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5566 goto nla_put_failure;
97990a06
JB		 5567 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5568 goto nla_put_failure;
2a519311
JB		 5569
5570 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5571 if (!bss)
5572 goto nla_put_failure;
9360ffd1 5573 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5574 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5575 goto nla_put_failure;
9caf0364
JB		 5576
5577 rcu_read_lock();
5578 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5579 if (ies) {
5580 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5581 goto fail_unlock_rcu;
5582 tsf = true;
5583 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5584 ies->len, ies->data))
5585 goto fail_unlock_rcu;
9caf0364
JB		 5586 }
5587 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5588 if (ies) {
5589 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5590 goto fail_unlock_rcu;
5591 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5592 ies->len, ies->data))
5593 goto fail_unlock_rcu;
9caf0364
JB		 5594 }
5595 rcu_read_unlock();
5596
9360ffd1
DM		 5597 if (res->beacon_interval &&
5598 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5599 goto nla_put_failure;
5600 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5601 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5602 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5603 jiffies_to_msecs(jiffies - intbss->ts)))
5604 goto nla_put_failure;
2a519311 5605
77965c97 5606 switch (rdev->wiphy.signal_type) {
2a519311 5607 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5608 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5609 goto nla_put_failure;
2a519311
JB		 5610 break;
5611 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5612 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5613 goto nla_put_failure;
2a519311
JB		 5614 break;
5615 default:
5616 break;
5617 }
5618
48ab905d 5619 switch (wdev->iftype) {
074ac8df 5620 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5621 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5622 if (intbss == wdev->current_bss &&
5623 nla_put_u32(msg, NL80211_BSS_STATUS,
5624 NL80211_BSS_STATUS_ASSOCIATED))
5625 goto nla_put_failure;
48ab905d
JB		 5626 break;
5627 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5628 if (intbss == wdev->current_bss &&
5629 nla_put_u32(msg, NL80211_BSS_STATUS,
5630 NL80211_BSS_STATUS_IBSS_JOINED))
5631 goto nla_put_failure;
48ab905d
JB		 5632 break;
5633 default:
5634 break;
5635 }
5636
2a519311
JB		 5637 nla_nest_end(msg, bss);
5638
5639 return genlmsg_end(msg, hdr);
5640
8cef2c9d
JB		 5641 fail_unlock_rcu:
5642 rcu_read_unlock();
2a519311
JB		 5643 nla_put_failure:
5644 genlmsg_cancel(msg, hdr);
5645 return -EMSGSIZE;
5646}
5647
97990a06 5648static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5649{
48ab905d 5650 struct cfg80211_registered_device *rdev;
2a519311 5651 struct cfg80211_internal_bss *scan;
48ab905d 5652 struct wireless_dev *wdev;
97990a06 5653 int start = cb->args[2], idx = 0;
2a519311
JB		 5654 int err;
5655
97990a06 5656 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5657 if (err)
5658 return err;
2a519311 5659
48ab905d
JB		 5660 wdev_lock(wdev);
5661 spin_lock_bh(&rdev->bss_lock);
5662 cfg80211_bss_expire(rdev);
5663
9720bb3a
JB		 5664 cb->seq = rdev->bss_generation;
5665
48ab905d 5666 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5667 if (++idx <= start)
5668 continue;
9720bb3a 5669 if (nl80211_send_bss(skb, cb,
2a519311 5670 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5671 rdev, wdev, scan) < 0) {
2a519311 5672 idx--;
67748893 5673 break;
2a519311
JB		 5674 }
5675 }
5676
48ab905d
JB		 5677 spin_unlock_bh(&rdev->bss_lock);
5678 wdev_unlock(wdev);
2a519311 5679
97990a06
JB		 5680 cb->args[2] = idx;
5681 nl80211_finish_wdev_dump(rdev);
2a519311 5682
67748893 5683 return skb->len;
2a519311
JB		 5684}
5685
15e47304 5686static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5687 int flags, struct net_device *dev,
5688 struct survey_info *survey)
5689{
5690 void *hdr;
5691 struct nlattr *infoattr;
5692
15e47304 5693 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5694 NL80211_CMD_NEW_SURVEY_RESULTS);
5695 if (!hdr)
5696 return -ENOMEM;
5697
9360ffd1
DM		 5698 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5699 goto nla_put_failure;
61fa713c
HS		 5700
5701 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5702 if (!infoattr)
5703 goto nla_put_failure;
5704
9360ffd1
DM		 5705 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5706 survey->channel->center_freq))
5707 goto nla_put_failure;
5708
5709 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5710 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5711 goto nla_put_failure;
5712 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5713 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5714 goto nla_put_failure;
5715 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5716 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5717 survey->channel_time))
5718 goto nla_put_failure;
5719 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5720 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5721 survey->channel_time_busy))
5722 goto nla_put_failure;
5723 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5724 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5725 survey->channel_time_ext_busy))
5726 goto nla_put_failure;
5727 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5728 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5729 survey->channel_time_rx))
5730 goto nla_put_failure;
5731 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5732 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5733 survey->channel_time_tx))
5734 goto nla_put_failure;
61fa713c
HS		 5735
5736 nla_nest_end(msg, infoattr);
5737
5738 return genlmsg_end(msg, hdr);
5739
5740 nla_put_failure:
5741 genlmsg_cancel(msg, hdr);
5742 return -EMSGSIZE;
5743}
5744
5745static int nl80211_dump_survey(struct sk_buff *skb,
5746 struct netlink_callback *cb)
5747{
5748 struct survey_info survey;
5749 struct cfg80211_registered_device *dev;
97990a06
JB		 5750 struct wireless_dev *wdev;
5751 int survey_idx = cb->args[2];
61fa713c
HS		 5752 int res;
5753
97990a06 5754 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 5755 if (res)
5756 return res;
61fa713c 5757
97990a06
JB		 5758 if (!wdev->netdev) {
5759 res = -EINVAL;
5760 goto out_err;
5761 }
5762
61fa713c
HS		 5763 if (!dev->ops->dump_survey) {
5764 res = -EOPNOTSUPP;
5765 goto out_err;
5766 }
5767
5768 while (1) {
180cdc79
LR		 5769 struct ieee80211_channel *chan;
5770
97990a06 5771 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 5772 if (res == -ENOENT)
5773 break;
5774 if (res)
5775 goto out_err;
5776
180cdc79
LR		 5777 /* Survey without a channel doesn't make sense */
5778 if (!survey.channel) {
5779 res = -EINVAL;
5780 goto out;
5781 }
5782
5783 chan = ieee80211_get_channel(&dev->wiphy,
5784 survey.channel->center_freq);
5785 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5786 survey_idx++;
5787 continue;
5788 }
5789
61fa713c 5790 if (nl80211_send_survey(skb,
15e47304 5791 NETLINK_CB(cb->skb).portid,
61fa713c 5792 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5793 wdev->netdev, &survey) < 0)
61fa713c
HS		 5794 goto out;
5795 survey_idx++;
5796 }
5797
5798 out:
97990a06 5799 cb->args[2] = survey_idx;
61fa713c
HS		 5800 res = skb->len;
5801 out_err:
97990a06 5802 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 5803 return res;
5804}
5805
b23aa676
SO		 5806static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5807{
5808 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5809 NL80211_WPA_VERSION_2));
5810}
5811
636a5d36
JM		 5812static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5813{
4c476991
JB		 5814 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5815 struct net_device *dev = info->user_ptr[1];
19957bb3 5816 struct ieee80211_channel *chan;
e39e5b5e
JM		 5817 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5818 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5819 enum nl80211_auth_type auth_type;
fffd0934 5820 struct key_parse key;
d5cdfacb 5821 bool local_state_change;
636a5d36 5822
f4a11bb0
JB		 5823 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5824 return -EINVAL;
5825
5826 if (!info->attrs[NL80211_ATTR_MAC])
5827 return -EINVAL;
5828
1778092e
JM		 5829 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5830 return -EINVAL;
5831
19957bb3
JB		 5832 if (!info->attrs[NL80211_ATTR_SSID])
5833 return -EINVAL;
5834
5835 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5836 return -EINVAL;
5837
fffd0934
JB		 5838 err = nl80211_parse_key(info, &key);
5839 if (err)
5840 return err;
5841
5842 if (key.idx >= 0) {
e31b8213
JB		 5843 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5844 return -EINVAL;
fffd0934
JB		 5845 if (!key.p.key || !key.p.key_len)
5846 return -EINVAL;
5847 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5848 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5849 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5850 key.p.key_len != WLAN_KEY_LEN_WEP104))
5851 return -EINVAL;
5852 if (key.idx > 4)
5853 return -EINVAL;
5854 } else {
5855 key.p.key_len = 0;
5856 key.p.key = NULL;
5857 }
5858
afea0b7a
JB		 5859 if (key.idx >= 0) {
5860 int i;
5861 bool ok = false;
5862 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5863 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5864 ok = true;
5865 break;
5866 }
5867 }
4c476991
JB		 5868 if (!ok)
5869 return -EINVAL;
afea0b7a
JB		 5870 }
5871
4c476991
JB		 5872 if (!rdev->ops->auth)
5873 return -EOPNOTSUPP;
636a5d36 5874
074ac8df 5875 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5876 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5877 return -EOPNOTSUPP;
eec60b03 5878
19957bb3 5879 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5880 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5881 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5882 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5883 return -EINVAL;
636a5d36 5884
19957bb3
JB		 5885 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5886 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5887
5888 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5889 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5890 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5891 }
5892
19957bb3 5893 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5894 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5895 return -EINVAL;
636a5d36 5896
e39e5b5e
JM		 5897 if (auth_type == NL80211_AUTHTYPE_SAE &&
5898 !info->attrs[NL80211_ATTR_SAE_DATA])
5899 return -EINVAL;
5900
5901 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5902 if (auth_type != NL80211_AUTHTYPE_SAE)
5903 return -EINVAL;
5904 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5905 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5906 /* need to include at least Auth Transaction and Status Code */
5907 if (sae_data_len < 4)
5908 return -EINVAL;
5909 }
5910
d5cdfacb
JM		 5911 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5912
95de817b
JB		 5913 /*
5914 * Since we no longer track auth state, ignore
5915 * requests to only change local state.
5916 */
5917 if (local_state_change)
5918 return 0;
5919
91bf9b26
JB		 5920 wdev_lock(dev->ieee80211_ptr);
5921 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5922 ssid, ssid_len, ie, ie_len,
5923 key.p.key, key.p.key_len, key.idx,
5924 sae_data, sae_data_len);
5925 wdev_unlock(dev->ieee80211_ptr);
5926 return err;
636a5d36
JM		 5927}
5928
c0692b8f
JB		 5929static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5930 struct genl_info *info,
3dc27d25
JB		 5931 struct cfg80211_crypto_settings *settings,
5932 int cipher_limit)
b23aa676 5933{
c0b2bbd8
JB		 5934 memset(settings, 0, sizeof(*settings));
5935
b23aa676
SO		 5936 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5937
c0692b8f
JB		 5938 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5939 u16 proto;
5940 proto = nla_get_u16(
5941 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5942 settings->control_port_ethertype = cpu_to_be16(proto);
5943 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5944 proto != ETH_P_PAE)
5945 return -EINVAL;
5946 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5947 settings->control_port_no_encrypt = true;
5948 } else
5949 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5950
b23aa676
SO		 5951 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5952 void *data;
5953 int len, i;
5954
5955 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5956 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5957 settings->n_ciphers_pairwise = len / sizeof(u32);
5958
5959 if (len % sizeof(u32))
5960 return -EINVAL;
5961
3dc27d25 5962 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5963 return -EINVAL;
5964
5965 memcpy(settings->ciphers_pairwise, data, len);
5966
5967 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5968 if (!cfg80211_supported_cipher_suite(
5969 &rdev->wiphy,
b23aa676
SO		 5970 settings->ciphers_pairwise[i]))
5971 return -EINVAL;
5972 }
5973
5974 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5975 settings->cipher_group =
5976 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5977 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5978 settings->cipher_group))
b23aa676
SO		 5979 return -EINVAL;
5980 }
5981
5982 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5983 settings->wpa_versions =
5984 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5985 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5986 return -EINVAL;
5987 }
5988
5989 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5990 void *data;
6d30240e 5991 int len;
b23aa676
SO		 5992
5993 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5994 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5995 settings->n_akm_suites = len / sizeof(u32);
5996
5997 if (len % sizeof(u32))
5998 return -EINVAL;
5999
1b9ca027
JM		 6000 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6001 return -EINVAL;
6002
b23aa676 6003 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6004 }
6005
6006 return 0;
6007}
6008
636a5d36
JM		 6009static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6010{
4c476991
JB		 6011 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6012 struct net_device *dev = info->user_ptr[1];
f444de05 6013 struct ieee80211_channel *chan;
f62fab73
JB		 6014 struct cfg80211_assoc_request req = {};
6015 const u8 *bssid, *ssid;
6016 int err, ssid_len = 0;
636a5d36 6017
f4a11bb0
JB		 6018 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6019 return -EINVAL;
6020
6021 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6022 !info->attrs[NL80211_ATTR_SSID] ||
6023 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6024 return -EINVAL;
6025
4c476991
JB		 6026 if (!rdev->ops->assoc)
6027 return -EOPNOTSUPP;
636a5d36 6028
074ac8df 6029 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6030 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6031 return -EOPNOTSUPP;
eec60b03 6032
19957bb3 6033 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6034
19957bb3
JB		 6035 chan = ieee80211_get_channel(&rdev->wiphy,
6036 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6037 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6038 return -EINVAL;
636a5d36 6039
19957bb3
JB		 6040 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6041 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6042
6043 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6044 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6045 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6046 }
6047
dc6382ce 6048 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6049 enum nl80211_mfp mfp =
dc6382ce 6050 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6051 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6052 req.use_mfp = true;
4c476991
JB		 6053 else if (mfp != NL80211_MFP_NO)
6054 return -EINVAL;
dc6382ce
JM		 6055 }
6056
3e5d7649 6057 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6058 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6059
7e7c8926 6060 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6061 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6062
6063 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6064 memcpy(&req.ht_capa_mask,
6065 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6066 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6067
6068 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6069 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6070 return -EINVAL;
f62fab73
JB		 6071 memcpy(&req.ht_capa,
6072 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6073 sizeof(req.ht_capa));
7e7c8926
BG		 6074 }
6075
ee2aca34 6076 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6077 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6078
6079 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6080 memcpy(&req.vht_capa_mask,
6081 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6082 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6083
6084 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6085 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6086 return -EINVAL;
f62fab73
JB		 6087 memcpy(&req.vht_capa,
6088 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6089 sizeof(req.vht_capa));
ee2aca34
JB		 6090 }
6091
f62fab73 6092 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6093 if (!err) {
6094 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6095 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6096 ssid, ssid_len, &req);
91bf9b26
JB		 6097 wdev_unlock(dev->ieee80211_ptr);
6098 }
636a5d36 6099
636a5d36
JM		 6100 return err;
6101}
6102
6103static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6104{
4c476991
JB		 6105 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6106 struct net_device *dev = info->user_ptr[1];
19957bb3 6107 const u8 *ie = NULL, *bssid;
91bf9b26 6108 int ie_len = 0, err;
19957bb3 6109 u16 reason_code;
d5cdfacb 6110 bool local_state_change;
636a5d36 6111
f4a11bb0
JB		 6112 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6113 return -EINVAL;
6114
6115 if (!info->attrs[NL80211_ATTR_MAC])
6116 return -EINVAL;
6117
6118 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6119 return -EINVAL;
6120
4c476991
JB		 6121 if (!rdev->ops->deauth)
6122 return -EOPNOTSUPP;
636a5d36 6123
074ac8df 6124 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6125 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6126 return -EOPNOTSUPP;
eec60b03 6127
19957bb3 6128 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6129
19957bb3
JB		 6130 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6131 if (reason_code == 0) {
f4a11bb0 6132 /* Reason Code 0 is reserved */
4c476991 6133 return -EINVAL;
255e737e 6134 }
636a5d36
JM		 6135
6136 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6137 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6138 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6139 }
6140
d5cdfacb
JM		 6141 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6142
91bf9b26
JB		 6143 wdev_lock(dev->ieee80211_ptr);
6144 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6145 local_state_change);
6146 wdev_unlock(dev->ieee80211_ptr);
6147 return err;
636a5d36
JM		 6148}
6149
6150static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6151{
4c476991
JB		 6152 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6153 struct net_device *dev = info->user_ptr[1];
19957bb3 6154 const u8 *ie = NULL, *bssid;
91bf9b26 6155 int ie_len = 0, err;
19957bb3 6156 u16 reason_code;
d5cdfacb 6157 bool local_state_change;
636a5d36 6158
f4a11bb0
JB		 6159 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6160 return -EINVAL;
6161
6162 if (!info->attrs[NL80211_ATTR_MAC])
6163 return -EINVAL;
6164
6165 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6166 return -EINVAL;
6167
4c476991
JB		 6168 if (!rdev->ops->disassoc)
6169 return -EOPNOTSUPP;
636a5d36 6170
074ac8df 6171 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6172 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6173 return -EOPNOTSUPP;
eec60b03 6174
19957bb3 6175 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6176
19957bb3
JB		 6177 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6178 if (reason_code == 0) {
f4a11bb0 6179 /* Reason Code 0 is reserved */
4c476991 6180 return -EINVAL;
255e737e 6181 }
636a5d36
JM		 6182
6183 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6184 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6185 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6186 }
6187
d5cdfacb
JM		 6188 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6189
91bf9b26
JB		 6190 wdev_lock(dev->ieee80211_ptr);
6191 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6192 local_state_change);
6193 wdev_unlock(dev->ieee80211_ptr);
6194 return err;
636a5d36
JM		 6195}
6196
dd5b4cc7
FF		 6197static bool
6198nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6199 int mcast_rate[IEEE80211_NUM_BANDS],
6200 int rateval)
6201{
6202 struct wiphy *wiphy = &rdev->wiphy;
6203 bool found = false;
6204 int band, i;
6205
6206 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6207 struct ieee80211_supported_band *sband;
6208
6209 sband = wiphy->bands[band];
6210 if (!sband)
6211 continue;
6212
6213 for (i = 0; i < sband->n_bitrates; i++) {
6214 if (sband->bitrates[i].bitrate == rateval) {
6215 mcast_rate[band] = i + 1;
6216 found = true;
6217 break;
6218 }
6219 }
6220 }
6221
6222 return found;
6223}
6224
04a773ad
JB		 6225static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6226{
4c476991
JB		 6227 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6228 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6229 struct cfg80211_ibss_params ibss;
6230 struct wiphy *wiphy;
fffd0934 6231 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6232 int err;
6233
8e30bc55
JB		 6234 memset(&ibss, 0, sizeof(ibss));
6235
04a773ad
JB		 6236 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6237 return -EINVAL;
6238
683b6d3b 6239 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6240 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6241 return -EINVAL;
6242
8e30bc55
JB		 6243 ibss.beacon_interval = 100;
6244
6245 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6246 ibss.beacon_interval =
6247 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6248 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6249 return -EINVAL;
6250 }
6251
4c476991
JB		 6252 if (!rdev->ops->join_ibss)
6253 return -EOPNOTSUPP;
04a773ad 6254
4c476991
JB		 6255 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6256 return -EOPNOTSUPP;
04a773ad 6257
79c97e97 6258 wiphy = &rdev->wiphy;
04a773ad 6259
39193498 6260 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6261 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6262
6263 if (!is_valid_ether_addr(ibss.bssid))
6264 return -EINVAL;
6265 }
04a773ad
JB		 6266 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6267 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6268
6269 if (info->attrs[NL80211_ATTR_IE]) {
6270 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6271 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6272 }
6273
683b6d3b
JB		 6274 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6275 if (err)
6276 return err;
04a773ad 6277
683b6d3b 6278 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6279 return -EINVAL;
6280
db9c64cf
JB		 6281 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
6282 return -EINVAL;
6283 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
6284 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 6285 return -EINVAL;
db9c64cf 6286
04a773ad 6287 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6288 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6289
fbd2c8dc
TP		 6290 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6291 u8 *rates =
6292 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6293 int n_rates =
6294 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6295 struct ieee80211_supported_band *sband =
683b6d3b 6296 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6297
34850ab2
JB		 6298 err = ieee80211_get_ratemask(sband, rates, n_rates,
6299 &ibss.basic_rates);
6300 if (err)
6301 return err;
fbd2c8dc 6302 }
dd5b4cc7
FF		 6303
6304 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6305 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6306 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6307 return -EINVAL;
fbd2c8dc 6308
4c476991 6309 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6310 bool no_ht = false;
6311
4c476991 6312 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6313 info->attrs[NL80211_ATTR_KEYS],
6314 &no_ht);
4c476991
JB		 6315 if (IS_ERR(connkeys))
6316 return PTR_ERR(connkeys);
de7044ee 6317
3d9d1d66
JB		 6318 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6319 no_ht) {
de7044ee
SM		 6320 kfree(connkeys);
6321 return -EINVAL;
6322 }
4c476991 6323 }
04a773ad 6324
267335d6
AQ		 6325 ibss.control_port =
6326 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6327
4c476991 6328 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6329 if (err)
6330 kfree(connkeys);
04a773ad
JB		 6331 return err;
6332}
6333
6334static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6335{
4c476991
JB		 6336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6337 struct net_device *dev = info->user_ptr[1];
04a773ad 6338
4c476991
JB		 6339 if (!rdev->ops->leave_ibss)
6340 return -EOPNOTSUPP;
04a773ad 6341
4c476991
JB		 6342 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6343 return -EOPNOTSUPP;
04a773ad 6344
4c476991 6345 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6346}
6347
f4e583c8
AQ		 6348static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6349{
6350 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6351 struct net_device *dev = info->user_ptr[1];
6352 int mcast_rate[IEEE80211_NUM_BANDS];
6353 u32 nla_rate;
6354 int err;
6355
6356 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6357 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6358 return -EOPNOTSUPP;
6359
6360 if (!rdev->ops->set_mcast_rate)
6361 return -EOPNOTSUPP;
6362
6363 memset(mcast_rate, 0, sizeof(mcast_rate));
6364
6365 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6366 return -EINVAL;
6367
6368 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6369 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6370 return -EINVAL;
6371
6372 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6373
6374 return err;
6375}
6376
6377
aff89a9b
JB		 6378#ifdef CONFIG_NL80211_TESTMODE
6379static struct genl_multicast_group nl80211_testmode_mcgrp = {
6380 .name = "testmode",
6381};
6382
6383static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6384{
4c476991 6385 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6386 int err;
6387
6388 if (!info->attrs[NL80211_ATTR_TESTDATA])
6389 return -EINVAL;
6390
aff89a9b
JB		 6391 err = -EOPNOTSUPP;
6392 if (rdev->ops->testmode_cmd) {
6393 rdev->testmode_info = info;
e35e4d28 6394 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6395 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6396 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6397 rdev->testmode_info = NULL;
6398 }
6399
aff89a9b
JB		 6400 return err;
6401}
6402
71063f0e
WYG		 6403static int nl80211_testmode_dump(struct sk_buff *skb,
6404 struct netlink_callback *cb)
6405{
00918d33 6406 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6407 int err;
6408 long phy_idx;
6409 void *data = NULL;
6410 int data_len = 0;
6411
5fe231e8
JB		 6412 rtnl_lock();
6413
71063f0e
WYG		 6414 if (cb->args[0]) {
6415 /*
6416 * 0 is a valid index, but not valid for args[0],
6417 * so we need to offset by 1.
6418 */
6419 phy_idx = cb->args[0] - 1;
6420 } else {
6421 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6422 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6423 nl80211_policy);
6424 if (err)
5fe231e8 6425 goto out_err;
00918d33 6426
2bd7e35d
JB		 6427 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6428 nl80211_fam.attrbuf);
6429 if (IS_ERR(rdev)) {
5fe231e8
JB		 6430 err = PTR_ERR(rdev);
6431 goto out_err;
00918d33 6432 }
2bd7e35d
JB		 6433 phy_idx = rdev->wiphy_idx;
6434 rdev = NULL;
2bd7e35d 6435
71063f0e
WYG		 6436 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6437 cb->args[1] =
6438 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6439 }
6440
6441 if (cb->args[1]) {
6442 data = nla_data((void *)cb->args[1]);
6443 data_len = nla_len((void *)cb->args[1]);
6444 }
6445
00918d33
JB		 6446 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6447 if (!rdev) {
5fe231e8
JB		 6448 err = -ENOENT;
6449 goto out_err;
71063f0e 6450 }
71063f0e 6451
00918d33 6452 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6453 err = -EOPNOTSUPP;
6454 goto out_err;
6455 }
6456
6457 while (1) {
15e47304 6458 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6459 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6460 NL80211_CMD_TESTMODE);
6461 struct nlattr *tmdata;
6462
9360ffd1 6463 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6464 genlmsg_cancel(skb, hdr);
6465 break;
6466 }
6467
6468 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6469 if (!tmdata) {
6470 genlmsg_cancel(skb, hdr);
6471 break;
6472 }
e35e4d28 6473 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6474 nla_nest_end(skb, tmdata);
6475
6476 if (err == -ENOBUFS || err == -ENOENT) {
6477 genlmsg_cancel(skb, hdr);
6478 break;
6479 } else if (err) {
6480 genlmsg_cancel(skb, hdr);
6481 goto out_err;
6482 }
6483
6484 genlmsg_end(skb, hdr);
6485 }
6486
6487 err = skb->len;
6488 /* see above */
6489 cb->args[0] = phy_idx + 1;
6490 out_err:
5fe231e8 6491 rtnl_unlock();
71063f0e
WYG		 6492 return err;
6493}
6494
aff89a9b
JB		 6495static struct sk_buff *
6496__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6497 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6498{
6499 struct sk_buff *skb;
6500 void *hdr;
6501 struct nlattr *data;
6502
6503 skb = nlmsg_new(approxlen + 100, gfp);
6504 if (!skb)
6505 return NULL;
6506
15e47304 6507 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6508 if (!hdr) {
6509 kfree_skb(skb);
6510 return NULL;
6511 }
6512
9360ffd1
DM		 6513 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6514 goto nla_put_failure;
aff89a9b
JB		 6515 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6516
6517 ((void **)skb->cb)[0] = rdev;
6518 ((void **)skb->cb)[1] = hdr;
6519 ((void **)skb->cb)[2] = data;
6520
6521 return skb;
6522
6523 nla_put_failure:
6524 kfree_skb(skb);
6525 return NULL;
6526}
6527
6528struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6529 int approxlen)
6530{
6531 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6532
6533 if (WARN_ON(!rdev->testmode_info))
6534 return NULL;
6535
6536 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6537 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6538 rdev->testmode_info->snd_seq,
6539 GFP_KERNEL);
6540}
6541EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6542
6543int cfg80211_testmode_reply(struct sk_buff *skb)
6544{
6545 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6546 void *hdr = ((void **)skb->cb)[1];
6547 struct nlattr *data = ((void **)skb->cb)[2];
6548
6549 if (WARN_ON(!rdev->testmode_info)) {
6550 kfree_skb(skb);
6551 return -EINVAL;
6552 }
6553
6554 nla_nest_end(skb, data);
6555 genlmsg_end(skb, hdr);
6556 return genlmsg_reply(skb, rdev->testmode_info);
6557}
6558EXPORT_SYMBOL(cfg80211_testmode_reply);
6559
6560struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6561 int approxlen, gfp_t gfp)
6562{
6563 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6564
6565 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6566}
6567EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6568
6569void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6570{
6571 void *hdr = ((void **)skb->cb)[1];
6572 struct nlattr *data = ((void **)skb->cb)[2];
6573
6574 nla_nest_end(skb, data);
6575 genlmsg_end(skb, hdr);
6576 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6577}
6578EXPORT_SYMBOL(cfg80211_testmode_event);
6579#endif
6580
b23aa676
SO		 6581static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6582{
4c476991
JB		 6583 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6584 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6585 struct cfg80211_connect_params connect;
6586 struct wiphy *wiphy;
fffd0934 6587 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6588 int err;
6589
6590 memset(&connect, 0, sizeof(connect));
6591
6592 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6593 return -EINVAL;
6594
6595 if (!info->attrs[NL80211_ATTR_SSID] ||
6596 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6597 return -EINVAL;
6598
6599 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6600 connect.auth_type =
6601 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6602 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6603 NL80211_CMD_CONNECT))
b23aa676
SO		 6604 return -EINVAL;
6605 } else
6606 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6607
6608 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6609
c0692b8f 6610 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6611 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6612 if (err)
6613 return err;
b23aa676 6614
074ac8df 6615 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6616 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6617 return -EOPNOTSUPP;
b23aa676 6618
79c97e97 6619 wiphy = &rdev->wiphy;
b23aa676 6620
4486ea98
BS		 6621 connect.bg_scan_period = -1;
6622 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6623 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6624 connect.bg_scan_period =
6625 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6626 }
6627
b23aa676
SO		 6628 if (info->attrs[NL80211_ATTR_MAC])
6629 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6630 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6631 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6632
6633 if (info->attrs[NL80211_ATTR_IE]) {
6634 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6635 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6636 }
6637
cee00a95
JM		 6638 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6639 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6640 if (connect.mfp != NL80211_MFP_REQUIRED &&
6641 connect.mfp != NL80211_MFP_NO)
6642 return -EINVAL;
6643 } else {
6644 connect.mfp = NL80211_MFP_NO;
6645 }
6646
b23aa676
SO		 6647 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6648 connect.channel =
6649 ieee80211_get_channel(wiphy,
6650 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6651 if (!connect.channel ||
4c476991
JB		 6652 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6653 return -EINVAL;
b23aa676
SO		 6654 }
6655
fffd0934
JB		 6656 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6657 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6658 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6659 if (IS_ERR(connkeys))
6660 return PTR_ERR(connkeys);
fffd0934
JB		 6661 }
6662
7e7c8926
BG		 6663 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6664 connect.flags |= ASSOC_REQ_DISABLE_HT;
6665
6666 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6667 memcpy(&connect.ht_capa_mask,
6668 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6669 sizeof(connect.ht_capa_mask));
6670
6671 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6672 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6673 kfree(connkeys);
7e7c8926 6674 return -EINVAL;
b4e4f47e 6675 }
7e7c8926
BG		 6676 memcpy(&connect.ht_capa,
6677 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6678 sizeof(connect.ht_capa));
6679 }
6680
ee2aca34
JB		 6681 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6682 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6683
6684 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6685 memcpy(&connect.vht_capa_mask,
6686 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6687 sizeof(connect.vht_capa_mask));
6688
6689 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6690 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6691 kfree(connkeys);
6692 return -EINVAL;
6693 }
6694 memcpy(&connect.vht_capa,
6695 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6696 sizeof(connect.vht_capa));
6697 }
6698
83739b03
JB		 6699 wdev_lock(dev->ieee80211_ptr);
6700 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
6701 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 6702 if (err)
6703 kfree(connkeys);
b23aa676
SO		 6704 return err;
6705}
6706
6707static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6708{
4c476991
JB		 6709 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6710 struct net_device *dev = info->user_ptr[1];
b23aa676 6711 u16 reason;
83739b03 6712 int ret;
b23aa676
SO		 6713
6714 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6715 reason = WLAN_REASON_DEAUTH_LEAVING;
6716 else
6717 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6718
6719 if (reason == 0)
6720 return -EINVAL;
6721
074ac8df 6722 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6723 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6724 return -EOPNOTSUPP;
b23aa676 6725
83739b03
JB		 6726 wdev_lock(dev->ieee80211_ptr);
6727 ret = cfg80211_disconnect(rdev, dev, reason, true);
6728 wdev_unlock(dev->ieee80211_ptr);
6729 return ret;
b23aa676
SO		 6730}
6731
463d0183
JB		 6732static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6733{
4c476991 6734 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6735 struct net *net;
6736 int err;
6737 u32 pid;
6738
6739 if (!info->attrs[NL80211_ATTR_PID])
6740 return -EINVAL;
6741
6742 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6743
463d0183 6744 net = get_net_ns_by_pid(pid);
4c476991
JB		 6745 if (IS_ERR(net))
6746 return PTR_ERR(net);
463d0183
JB		 6747
6748 err = 0;
6749
6750 /* check if anything to do */
4c476991
JB		 6751 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6752 err = cfg80211_switch_netns(rdev, net);
463d0183 6753
463d0183 6754 put_net(net);
463d0183
JB		 6755 return err;
6756}
6757
67fbb16b
SO		 6758static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6759{
4c476991 6760 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6761 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6762 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6763 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6764 struct cfg80211_pmksa pmksa;
6765
6766 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6767
6768 if (!info->attrs[NL80211_ATTR_MAC])
6769 return -EINVAL;
6770
6771 if (!info->attrs[NL80211_ATTR_PMKID])
6772 return -EINVAL;
6773
67fbb16b
SO		 6774 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6775 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6776
074ac8df 6777 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6778 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6779 return -EOPNOTSUPP;
67fbb16b
SO		 6780
6781 switch (info->genlhdr->cmd) {
6782 case NL80211_CMD_SET_PMKSA:
6783 rdev_ops = rdev->ops->set_pmksa;
6784 break;
6785 case NL80211_CMD_DEL_PMKSA:
6786 rdev_ops = rdev->ops->del_pmksa;
6787 break;
6788 default:
6789 WARN_ON(1);
6790 break;
6791 }
6792
4c476991
JB		 6793 if (!rdev_ops)
6794 return -EOPNOTSUPP;
67fbb16b 6795
4c476991 6796 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6797}
6798
6799static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6800{
4c476991
JB		 6801 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6802 struct net_device *dev = info->user_ptr[1];
67fbb16b 6803
074ac8df 6804 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6805 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6806 return -EOPNOTSUPP;
67fbb16b 6807
4c476991
JB		 6808 if (!rdev->ops->flush_pmksa)
6809 return -EOPNOTSUPP;
67fbb16b 6810
e35e4d28 6811 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6812}
6813
109086ce
AN		 6814static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6815{
6816 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6817 struct net_device *dev = info->user_ptr[1];
6818 u8 action_code, dialog_token;
6819 u16 status_code;
6820 u8 *peer;
6821
6822 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6823 !rdev->ops->tdls_mgmt)
6824 return -EOPNOTSUPP;
6825
6826 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6827 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6828 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6829 !info->attrs[NL80211_ATTR_IE] ||
6830 !info->attrs[NL80211_ATTR_MAC])
6831 return -EINVAL;
6832
6833 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6834 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6835 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6836 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6837
e35e4d28
HG		 6838 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6839 dialog_token, status_code,
6840 nla_data(info->attrs[NL80211_ATTR_IE]),
6841 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6842}
6843
6844static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6845{
6846 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6847 struct net_device *dev = info->user_ptr[1];
6848 enum nl80211_tdls_operation operation;
6849 u8 *peer;
6850
6851 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6852 !rdev->ops->tdls_oper)
6853 return -EOPNOTSUPP;
6854
6855 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6856 !info->attrs[NL80211_ATTR_MAC])
6857 return -EINVAL;
6858
6859 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6860 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6861
e35e4d28 6862 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6863}
6864
9588bbd5
JM		 6865static int nl80211_remain_on_channel(struct sk_buff *skb,
6866 struct genl_info *info)
6867{
4c476991 6868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6869 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6870 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6871 struct sk_buff *msg;
6872 void *hdr;
6873 u64 cookie;
683b6d3b 6874 u32 duration;
9588bbd5
JM		 6875 int err;
6876
6877 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6878 !info->attrs[NL80211_ATTR_DURATION])
6879 return -EINVAL;
6880
6881 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6882
ebf348fc
JB		 6883 if (!rdev->ops->remain_on_channel ||
6884 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6885 return -EOPNOTSUPP;
6886
9588bbd5 6887 /*
ebf348fc
JB		 6888 * We should be on that channel for at least a minimum amount of
6889 * time (10ms) but no longer than the driver supports.
9588bbd5 6890 */
ebf348fc 6891 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6892 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6893 return -EINVAL;
6894
683b6d3b
JB		 6895 err = nl80211_parse_chandef(rdev, info, &chandef);
6896 if (err)
6897 return err;
9588bbd5
JM		 6898
6899 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6900 if (!msg)
6901 return -ENOMEM;
9588bbd5 6902
15e47304 6903 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6904 NL80211_CMD_REMAIN_ON_CHANNEL);
6905
6906 if (IS_ERR(hdr)) {
6907 err = PTR_ERR(hdr);
6908 goto free_msg;
6909 }
6910
683b6d3b
JB		 6911 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6912 duration, &cookie);
9588bbd5
JM		 6913
6914 if (err)
6915 goto free_msg;
6916
9360ffd1
DM		 6917 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6918 goto nla_put_failure;
9588bbd5
JM		 6919
6920 genlmsg_end(msg, hdr);
4c476991
JB		 6921
6922 return genlmsg_reply(msg, info);
9588bbd5
JM		 6923
6924 nla_put_failure:
6925 err = -ENOBUFS;
6926 free_msg:
6927 nlmsg_free(msg);
9588bbd5
JM		 6928 return err;
6929}
6930
6931static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6932 struct genl_info *info)
6933{
4c476991 6934 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6935 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6936 u64 cookie;
9588bbd5
JM		 6937
6938 if (!info->attrs[NL80211_ATTR_COOKIE])
6939 return -EINVAL;
6940
4c476991
JB		 6941 if (!rdev->ops->cancel_remain_on_channel)
6942 return -EOPNOTSUPP;
9588bbd5 6943
9588bbd5
JM		 6944 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6945
e35e4d28 6946 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6947}
6948
13ae75b1
JM		 6949static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6950 u8 *rates, u8 rates_len)
6951{
6952 u8 i;
6953 u32 mask = 0;
6954
6955 for (i = 0; i < rates_len; i++) {
6956 int rate = (rates[i] & 0x7f) * 5;
6957 int ridx;
6958 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6959 struct ieee80211_rate *srate =
6960 &sband->bitrates[ridx];
6961 if (rate == srate->bitrate) {
6962 mask |= 1 << ridx;
6963 break;
6964 }
6965 }
6966 if (ridx == sband->n_bitrates)
6967 return 0; /* rate not found */
6968 }
6969
6970 return mask;
6971}
6972
24db78c0
SW		 6973static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6974 u8 *rates, u8 rates_len,
6975 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6976{
6977 u8 i;
6978
6979 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6980
6981 for (i = 0; i < rates_len; i++) {
6982 int ridx, rbit;
6983
6984 ridx = rates[i] / 8;
6985 rbit = BIT(rates[i] % 8);
6986
6987 /* check validity */
910570b5 6988 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6989 return false;
6990
6991 /* check availability */
6992 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6993 mcs[ridx] |= rbit;
6994 else
6995 return false;
6996 }
6997
6998 return true;
6999}
7000
b54452b0 7001static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7002 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7003 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 7004 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7005 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 7006};
7007
7008static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7009 struct genl_info *info)
7010{
7011 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7012 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7013 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7014 int rem, i;
7015 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7016 struct nlattr *tx_rates;
7017 struct ieee80211_supported_band *sband;
7018
7019 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7020 return -EINVAL;
7021
4c476991
JB		 7022 if (!rdev->ops->set_bitrate_mask)
7023 return -EOPNOTSUPP;
13ae75b1
JM		 7024
7025 memset(&mask, 0, sizeof(mask));
7026 /* Default to all rates enabled */
7027 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7028 sband = rdev->wiphy.bands[i];
7029 mask.control[i].legacy =
7030 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 7031 if (sband)
7032 memcpy(mask.control[i].mcs,
7033 sband->ht_cap.mcs.rx_mask,
7034 sizeof(mask.control[i].mcs));
7035 else
7036 memset(mask.control[i].mcs, 0,
7037 sizeof(mask.control[i].mcs));
13ae75b1
JM		 7038 }
7039
7040 /*
7041 * The nested attribute uses enum nl80211_band as the index. This maps
7042 * directly to the enum ieee80211_band values used in cfg80211.
7043 */
24db78c0 7044 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7045 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7046 {
7047 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7048 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7049 return -EINVAL;
13ae75b1 7050 sband = rdev->wiphy.bands[band];
4c476991
JB		 7051 if (sband == NULL)
7052 return -EINVAL;
13ae75b1
JM		 7053 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7054 nla_len(tx_rates), nl80211_txattr_policy);
7055 if (tb[NL80211_TXRATE_LEGACY]) {
7056 mask.control[band].legacy = rateset_to_mask(
7057 sband,
7058 nla_data(tb[NL80211_TXRATE_LEGACY]),
7059 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7060 if ((mask.control[band].legacy == 0) &&
7061 nla_len(tb[NL80211_TXRATE_LEGACY]))
7062 return -EINVAL;
24db78c0
SW		 7063 }
7064 if (tb[NL80211_TXRATE_MCS]) {
7065 if (!ht_rateset_to_mask(
7066 sband,
7067 nla_data(tb[NL80211_TXRATE_MCS]),
7068 nla_len(tb[NL80211_TXRATE_MCS]),
7069 mask.control[band].mcs))
7070 return -EINVAL;
7071 }
7072
7073 if (mask.control[band].legacy == 0) {
7074 /* don't allow empty legacy rates if HT
7075 * is not even supported. */
7076 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7077 return -EINVAL;
7078
7079 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7080 if (mask.control[band].mcs[i])
7081 break;
7082
7083 /* legacy and mcs rates may not be both empty */
7084 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7085 return -EINVAL;
13ae75b1
JM		 7086 }
7087 }
7088
e35e4d28 7089 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7090}
7091
2e161f78 7092static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7093{
4c476991 7094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7095 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7096 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7097
7098 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7099 return -EINVAL;
7100
2e161f78
JB		 7101 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7102 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7103
71bbc994
JB		 7104 switch (wdev->iftype) {
7105 case NL80211_IFTYPE_STATION:
7106 case NL80211_IFTYPE_ADHOC:
7107 case NL80211_IFTYPE_P2P_CLIENT:
7108 case NL80211_IFTYPE_AP:
7109 case NL80211_IFTYPE_AP_VLAN:
7110 case NL80211_IFTYPE_MESH_POINT:
7111 case NL80211_IFTYPE_P2P_GO:
98104fde 7112 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7113 break;
7114 default:
4c476991 7115 return -EOPNOTSUPP;
71bbc994 7116 }
026331c4
JM		 7117
7118 /* not much point in registering if we can't reply */
4c476991
JB		 7119 if (!rdev->ops->mgmt_tx)
7120 return -EOPNOTSUPP;
026331c4 7121
15e47304 7122 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7123 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7124 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7125}
7126
2e161f78 7127static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7128{
4c476991 7129 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7130 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7131 struct cfg80211_chan_def chandef;
026331c4 7132 int err;
d64d373f 7133 void *hdr = NULL;
026331c4 7134 u64 cookie;
e247bd90 7135 struct sk_buff *msg = NULL;
f7ca38df 7136 unsigned int wait = 0;
e247bd90
JB		 7137 bool offchan, no_cck, dont_wait_for_ack;
7138
7139 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 7140
683b6d3b 7141 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7142 return -EINVAL;
7143
4c476991
JB		 7144 if (!rdev->ops->mgmt_tx)
7145 return -EOPNOTSUPP;
026331c4 7146
71bbc994
JB		 7147 switch (wdev->iftype) {
7148 case NL80211_IFTYPE_STATION:
7149 case NL80211_IFTYPE_ADHOC:
7150 case NL80211_IFTYPE_P2P_CLIENT:
7151 case NL80211_IFTYPE_AP:
7152 case NL80211_IFTYPE_AP_VLAN:
7153 case NL80211_IFTYPE_MESH_POINT:
7154 case NL80211_IFTYPE_P2P_GO:
98104fde 7155 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7156 break;
7157 default:
4c476991 7158 return -EOPNOTSUPP;
71bbc994 7159 }
026331c4 7160
f7ca38df 7161 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7162 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 7163 return -EINVAL;
7164 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7165
7166 /*
7167 * We should wait on the channel for at least a minimum amount
7168 * of time (10ms) but no longer than the driver supports.
7169 */
7170 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7171 wait > rdev->wiphy.max_remain_on_channel_duration)
7172 return -EINVAL;
7173
f7ca38df
JB		 7174 }
7175
f7ca38df
JB		 7176 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7177
7c4ef712
JB		 7178 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7179 return -EINVAL;
7180
e9f935e3
RM		 7181 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7182
683b6d3b
JB		 7183 err = nl80211_parse_chandef(rdev, info, &chandef);
7184 if (err)
7185 return err;
026331c4 7186
e247bd90
JB		 7187 if (!dont_wait_for_ack) {
7188 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7189 if (!msg)
7190 return -ENOMEM;
026331c4 7191
15e47304 7192 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7193 NL80211_CMD_FRAME);
026331c4 7194
e247bd90
JB		 7195 if (IS_ERR(hdr)) {
7196 err = PTR_ERR(hdr);
7197 goto free_msg;
7198 }
026331c4 7199 }
e247bd90 7200
683b6d3b 7201 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 7202 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7203 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 7204 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 7205 if (err)
7206 goto free_msg;
7207
e247bd90 7208 if (msg) {
9360ffd1
DM		 7209 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7210 goto nla_put_failure;
026331c4 7211
e247bd90
JB		 7212 genlmsg_end(msg, hdr);
7213 return genlmsg_reply(msg, info);
7214 }
7215
7216 return 0;
026331c4
JM		 7217
7218 nla_put_failure:
7219 err = -ENOBUFS;
7220 free_msg:
7221 nlmsg_free(msg);
026331c4
JM		 7222 return err;
7223}
7224
f7ca38df
JB		 7225static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7226{
7227 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7228 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7229 u64 cookie;
7230
7231 if (!info->attrs[NL80211_ATTR_COOKIE])
7232 return -EINVAL;
7233
7234 if (!rdev->ops->mgmt_tx_cancel_wait)
7235 return -EOPNOTSUPP;
7236
71bbc994
JB		 7237 switch (wdev->iftype) {
7238 case NL80211_IFTYPE_STATION:
7239 case NL80211_IFTYPE_ADHOC:
7240 case NL80211_IFTYPE_P2P_CLIENT:
7241 case NL80211_IFTYPE_AP:
7242 case NL80211_IFTYPE_AP_VLAN:
7243 case NL80211_IFTYPE_P2P_GO:
98104fde 7244 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7245 break;
7246 default:
f7ca38df 7247 return -EOPNOTSUPP;
71bbc994 7248 }
f7ca38df
JB		 7249
7250 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7251
e35e4d28 7252 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7253}
7254
ffb9eb3d
KV		 7255static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7256{
4c476991 7257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7258 struct wireless_dev *wdev;
4c476991 7259 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7260 u8 ps_state;
7261 bool state;
7262 int err;
7263
4c476991
JB		 7264 if (!info->attrs[NL80211_ATTR_PS_STATE])
7265 return -EINVAL;
ffb9eb3d
KV		 7266
7267 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7268
4c476991
JB		 7269 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7270 return -EINVAL;
ffb9eb3d
KV		 7271
7272 wdev = dev->ieee80211_ptr;
7273
4c476991
JB		 7274 if (!rdev->ops->set_power_mgmt)
7275 return -EOPNOTSUPP;
ffb9eb3d
KV		 7276
7277 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7278
7279 if (state == wdev->ps)
4c476991 7280 return 0;
ffb9eb3d 7281
e35e4d28 7282 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7283 if (!err)
7284 wdev->ps = state;
ffb9eb3d
KV		 7285 return err;
7286}
7287
7288static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7289{
4c476991 7290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7291 enum nl80211_ps_state ps_state;
7292 struct wireless_dev *wdev;
4c476991 7293 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7294 struct sk_buff *msg;
7295 void *hdr;
7296 int err;
7297
ffb9eb3d
KV		 7298 wdev = dev->ieee80211_ptr;
7299
4c476991
JB		 7300 if (!rdev->ops->set_power_mgmt)
7301 return -EOPNOTSUPP;
ffb9eb3d
KV		 7302
7303 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7304 if (!msg)
7305 return -ENOMEM;
ffb9eb3d 7306
15e47304 7307 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7308 NL80211_CMD_GET_POWER_SAVE);
7309 if (!hdr) {
4c476991 7310 err = -ENOBUFS;
ffb9eb3d
KV		 7311 goto free_msg;
7312 }
7313
7314 if (wdev->ps)
7315 ps_state = NL80211_PS_ENABLED;
7316 else
7317 ps_state = NL80211_PS_DISABLED;
7318
9360ffd1
DM		 7319 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7320 goto nla_put_failure;
ffb9eb3d
KV		 7321
7322 genlmsg_end(msg, hdr);
4c476991 7323 return genlmsg_reply(msg, info);
ffb9eb3d 7324
4c476991 7325 nla_put_failure:
ffb9eb3d 7326 err = -ENOBUFS;
4c476991 7327 free_msg:
ffb9eb3d 7328 nlmsg_free(msg);
ffb9eb3d
KV		 7329 return err;
7330}
7331
d6dc1a38
JO		 7332static struct nla_policy
7333nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7334 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7335 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7336 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7337 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7338 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7339 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7340};
7341
84f10708 7342static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7343 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7344{
7345 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7346 struct wireless_dev *wdev;
7347 struct net_device *dev = info->user_ptr[1];
7348
d9d8b019 7349 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7350 return -EINVAL;
7351
7352 wdev = dev->ieee80211_ptr;
7353
7354 if (!rdev->ops->set_cqm_txe_config)
7355 return -EOPNOTSUPP;
7356
7357 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7358 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7359 return -EOPNOTSUPP;
7360
e35e4d28 7361 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7362}
7363
d6dc1a38
JO		 7364static int nl80211_set_cqm_rssi(struct genl_info *info,
7365 s32 threshold, u32 hysteresis)
7366{
4c476991 7367 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 7368 struct wireless_dev *wdev;
4c476991 7369 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 7370
7371 if (threshold > 0)
7372 return -EINVAL;
7373
d6dc1a38
JO		 7374 wdev = dev->ieee80211_ptr;
7375
4c476991
JB		 7376 if (!rdev->ops->set_cqm_rssi_config)
7377 return -EOPNOTSUPP;
d6dc1a38 7378
074ac8df 7379 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7380 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7381 return -EOPNOTSUPP;
d6dc1a38 7382
e35e4d28 7383 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7384}
7385
7386static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7387{
7388 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7389 struct nlattr *cqm;
7390 int err;
7391
7392 cqm = info->attrs[NL80211_ATTR_CQM];
7393 if (!cqm) {
7394 err = -EINVAL;
7395 goto out;
7396 }
7397
7398 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7399 nl80211_attr_cqm_policy);
7400 if (err)
7401 goto out;
7402
7403 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7404 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7405 s32 threshold;
7406 u32 hysteresis;
7407 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7408 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7409 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7410 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7411 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7412 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7413 u32 rate, pkts, intvl;
7414 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7415 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7416 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7417 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7418 } else
7419 err = -EINVAL;
7420
7421out:
7422 return err;
7423}
7424
29cbe68c
JB		 7425static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7426{
7427 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7428 struct net_device *dev = info->user_ptr[1];
7429 struct mesh_config cfg;
c80d545d 7430 struct mesh_setup setup;
29cbe68c
JB		 7431 int err;
7432
7433 /* start with default */
7434 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7435 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7436
24bdd9f4 7437 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7438 /* and parse parameters if given */
24bdd9f4 7439 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7440 if (err)
7441 return err;
7442 }
7443
7444 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7445 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7446 return -EINVAL;
7447
c80d545d
JC		 7448 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7449 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7450
4bb62344
CYY		 7451 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7452 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7453 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7454 return -EINVAL;
7455
9bdbf04d
MP		 7456 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7457 setup.beacon_interval =
7458 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7459 if (setup.beacon_interval < 10 ||
7460 setup.beacon_interval > 10000)
7461 return -EINVAL;
7462 }
7463
7464 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7465 setup.dtim_period =
7466 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7467 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7468 return -EINVAL;
7469 }
7470
c80d545d
JC		 7471 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7472 /* parse additional setup parameters if given */
7473 err = nl80211_parse_mesh_setup(info, &setup);
7474 if (err)
7475 return err;
7476 }
7477
d37bb18a
TP		 7478 if (setup.user_mpm)
7479 cfg.auto_open_plinks = false;
7480
cc1d2806 7481 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7482 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7483 if (err)
7484 return err;
cc1d2806
JB		 7485 } else {
7486 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7487 setup.chandef.chan = NULL;
cc1d2806
JB		 7488 }
7489
c80d545d 7490 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7491}
7492
7493static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7494{
7495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7496 struct net_device *dev = info->user_ptr[1];
7497
7498 return cfg80211_leave_mesh(rdev, dev);
7499}
7500
dfb89c56 7501#ifdef CONFIG_PM
bb92d199
AK		 7502static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7503 struct cfg80211_registered_device *rdev)
7504{
6abb9cb9 7505 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 7506 struct nlattr *nl_pats, *nl_pat;
7507 int i, pat_len;
7508
6abb9cb9 7509 if (!wowlan->n_patterns)
bb92d199
AK		 7510 return 0;
7511
7512 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7513 if (!nl_pats)
7514 return -ENOBUFS;
7515
6abb9cb9 7516 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 7517 nl_pat = nla_nest_start(msg, i + 1);
7518 if (!nl_pat)
7519 return -ENOBUFS;
6abb9cb9 7520 pat_len = wowlan->patterns[i].pattern_len;
bb92d199
AK		 7521 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7522 DIV_ROUND_UP(pat_len, 8),
6abb9cb9 7523 wowlan->patterns[i].mask) ||
bb92d199 7524 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6abb9cb9 7525 pat_len, wowlan->patterns[i].pattern) ||
bb92d199 7526 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
6abb9cb9 7527 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 7528 return -ENOBUFS;
7529 nla_nest_end(msg, nl_pat);
7530 }
7531 nla_nest_end(msg, nl_pats);
7532
7533 return 0;
7534}
7535
2a0e047e
JB		 7536static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7537 struct cfg80211_wowlan_tcp *tcp)
7538{
7539 struct nlattr *nl_tcp;
7540
7541 if (!tcp)
7542 return 0;
7543
7544 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7545 if (!nl_tcp)
7546 return -ENOBUFS;
7547
7548 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7549 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7550 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7551 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7552 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7553 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7554 tcp->payload_len, tcp->payload) ||
7555 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7556 tcp->data_interval) ||
7557 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7558 tcp->wake_len, tcp->wake_data) ||
7559 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7560 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7561 return -ENOBUFS;
7562
7563 if (tcp->payload_seq.len &&
7564 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7565 sizeof(tcp->payload_seq), &tcp->payload_seq))
7566 return -ENOBUFS;
7567
7568 if (tcp->payload_tok.len &&
7569 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7570 sizeof(tcp->payload_tok) + tcp->tokens_size,
7571 &tcp->payload_tok))
7572 return -ENOBUFS;
7573
e248ad30
JB		 7574 nla_nest_end(msg, nl_tcp);
7575
2a0e047e
JB		 7576 return 0;
7577}
7578
ff1b6e69
JB		 7579static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7580{
7581 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7582 struct sk_buff *msg;
7583 void *hdr;
2a0e047e 7584 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7585
964dc9e2 7586 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 7587 return -EOPNOTSUPP;
7588
6abb9cb9 7589 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 7590 /* adjust size to have room for all the data */
6abb9cb9
JB		 7591 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7592 rdev->wiphy.wowlan_config->tcp->payload_len +
7593 rdev->wiphy.wowlan_config->tcp->wake_len +
7594 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 7595 }
7596
7597 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7598 if (!msg)
7599 return -ENOMEM;
7600
15e47304 7601 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7602 NL80211_CMD_GET_WOWLAN);
7603 if (!hdr)
7604 goto nla_put_failure;
7605
6abb9cb9 7606 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 7607 struct nlattr *nl_wowlan;
7608
7609 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7610 if (!nl_wowlan)
7611 goto nla_put_failure;
7612
6abb9cb9 7613 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 7614 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 7615 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 7616 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 7617 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 7618 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 7619 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 7620 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 7621 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 7622 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 7623 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 7624 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 7625 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 7626 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7627 goto nla_put_failure;
2a0e047e 7628
bb92d199
AK		 7629 if (nl80211_send_wowlan_patterns(msg, rdev))
7630 goto nla_put_failure;
2a0e047e 7631
6abb9cb9
JB		 7632 if (nl80211_send_wowlan_tcp(msg,
7633 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 7634 goto nla_put_failure;
7635
ff1b6e69
JB		 7636 nla_nest_end(msg, nl_wowlan);
7637 }
7638
7639 genlmsg_end(msg, hdr);
7640 return genlmsg_reply(msg, info);
7641
7642nla_put_failure:
7643 nlmsg_free(msg);
7644 return -ENOBUFS;
7645}
7646
2a0e047e
JB		 7647static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7648 struct nlattr *attr,
7649 struct cfg80211_wowlan *trig)
7650{
7651 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7652 struct cfg80211_wowlan_tcp *cfg;
7653 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7654 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7655 u32 size;
7656 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7657 int err, port;
7658
964dc9e2 7659 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 7660 return -EINVAL;
7661
7662 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7663 nla_data(attr), nla_len(attr),
7664 nl80211_wowlan_tcp_policy);
7665 if (err)
7666 return err;
7667
7668 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7669 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7670 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7671 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7672 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7673 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7674 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7675 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7676 return -EINVAL;
7677
7678 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 7679 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 7680 return -EINVAL;
7681
7682 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 7683 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 7684 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 7685 return -EINVAL;
7686
7687 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 7688 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 7689 return -EINVAL;
7690
7691 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7692 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7693 return -EINVAL;
7694
7695 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7696 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7697
7698 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7699 tokens_size = tokln - sizeof(*tok);
7700
7701 if (!tok->len || tokens_size % tok->len)
7702 return -EINVAL;
964dc9e2 7703 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 7704 return -EINVAL;
964dc9e2 7705 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 7706 return -EINVAL;
964dc9e2 7707 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 7708 return -EINVAL;
964dc9e2 7709 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 7710 return -EINVAL;
7711 if (tok->offset + tok->len > data_size)
7712 return -EINVAL;
7713 }
7714
7715 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7716 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 7717 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 7718 return -EINVAL;
7719 if (seq->len == 0 || seq->len > 4)
7720 return -EINVAL;
7721 if (seq->len + seq->offset > data_size)
7722 return -EINVAL;
7723 }
7724
7725 size = sizeof(*cfg);
7726 size += data_size;
7727 size += wake_size + wake_mask_size;
7728 size += tokens_size;
7729
7730 cfg = kzalloc(size, GFP_KERNEL);
7731 if (!cfg)
7732 return -ENOMEM;
7733 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7734 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7735 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7736 ETH_ALEN);
7737 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7738 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7739 else
7740 port = 0;
7741#ifdef CONFIG_INET
7742 /* allocate a socket and port for it and use it */
7743 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7744 IPPROTO_TCP, &cfg->sock, 1);
7745 if (err) {
7746 kfree(cfg);
7747 return err;
7748 }
7749 if (inet_csk_get_port(cfg->sock->sk, port)) {
7750 sock_release(cfg->sock);
7751 kfree(cfg);
7752 return -EADDRINUSE;
7753 }
7754 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7755#else
7756 if (!port) {
7757 kfree(cfg);
7758 return -EINVAL;
7759 }
7760 cfg->src_port = port;
7761#endif
7762
7763 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7764 cfg->payload_len = data_size;
7765 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7766 memcpy((void *)cfg->payload,
7767 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7768 data_size);
7769 if (seq)
7770 cfg->payload_seq = *seq;
7771 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7772 cfg->wake_len = wake_size;
7773 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7774 memcpy((void *)cfg->wake_data,
7775 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7776 wake_size);
7777 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7778 data_size + wake_size;
7779 memcpy((void *)cfg->wake_mask,
7780 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7781 wake_mask_size);
7782 if (tok) {
7783 cfg->tokens_size = tokens_size;
7784 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7785 }
7786
7787 trig->tcp = cfg;
7788
7789 return 0;
7790}
7791
ff1b6e69
JB		 7792static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7793{
7794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7795 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7796 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7797 struct cfg80211_wowlan *ntrig;
964dc9e2 7798 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 7799 int err, i;
6abb9cb9 7800 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 7801
964dc9e2 7802 if (!wowlan)
ff1b6e69
JB		 7803 return -EOPNOTSUPP;
7804
ae33bd81
JB		 7805 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7806 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 7807 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 7808 goto set_wakeup;
7809 }
ff1b6e69
JB		 7810
7811 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7812 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7813 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7814 nl80211_wowlan_policy);
7815 if (err)
7816 return err;
7817
7818 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7819 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7820 return -EINVAL;
7821 new_triggers.any = true;
7822 }
7823
7824 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7825 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7826 return -EINVAL;
7827 new_triggers.disconnect = true;
7828 }
7829
7830 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7831 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7832 return -EINVAL;
7833 new_triggers.magic_pkt = true;
7834 }
7835
77dbbb13
JB		 7836 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7837 return -EINVAL;
7838
7839 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7840 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7841 return -EINVAL;
7842 new_triggers.gtk_rekey_failure = true;
7843 }
7844
7845 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7846 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7847 return -EINVAL;
7848 new_triggers.eap_identity_req = true;
7849 }
7850
7851 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7852 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7853 return -EINVAL;
7854 new_triggers.four_way_handshake = true;
7855 }
7856
7857 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7858 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7859 return -EINVAL;
7860 new_triggers.rfkill_release = true;
7861 }
7862
ff1b6e69
JB		 7863 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7864 struct nlattr *pat;
7865 int n_patterns = 0;
bb92d199 7866 int rem, pat_len, mask_len, pkt_offset;
ff1b6e69
JB		 7867 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7868
7869 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7870 rem)
7871 n_patterns++;
7872 if (n_patterns > wowlan->n_patterns)
7873 return -EINVAL;
7874
7875 new_triggers.patterns = kcalloc(n_patterns,
7876 sizeof(new_triggers.patterns[0]),
7877 GFP_KERNEL);
7878 if (!new_triggers.patterns)
7879 return -ENOMEM;
7880
7881 new_triggers.n_patterns = n_patterns;
7882 i = 0;
7883
7884 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7885 rem) {
7886 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7887 nla_data(pat), nla_len(pat), NULL);
7888 err = -EINVAL;
7889 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7890 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7891 goto error;
7892 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7893 mask_len = DIV_ROUND_UP(pat_len, 8);
7894 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7895 mask_len)
7896 goto error;
7897 if (pat_len > wowlan->pattern_max_len ||
7898 pat_len < wowlan->pattern_min_len)
7899 goto error;
7900
bb92d199
AK		 7901 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7902 pkt_offset = 0;
7903 else
7904 pkt_offset = nla_get_u32(
7905 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7906 if (pkt_offset > wowlan->max_pkt_offset)
7907 goto error;
7908 new_triggers.patterns[i].pkt_offset = pkt_offset;
7909
ff1b6e69
JB		 7910 new_triggers.patterns[i].mask =
7911 kmalloc(mask_len + pat_len, GFP_KERNEL);
7912 if (!new_triggers.patterns[i].mask) {
7913 err = -ENOMEM;
7914 goto error;
7915 }
7916 new_triggers.patterns[i].pattern =
7917 new_triggers.patterns[i].mask + mask_len;
7918 memcpy(new_triggers.patterns[i].mask,
7919 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7920 mask_len);
7921 new_triggers.patterns[i].pattern_len = pat_len;
7922 memcpy(new_triggers.patterns[i].pattern,
7923 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7924 pat_len);
7925 i++;
7926 }
7927 }
7928
2a0e047e
JB		 7929 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7930 err = nl80211_parse_wowlan_tcp(
7931 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7932 &new_triggers);
7933 if (err)
7934 goto error;
7935 }
7936
ae33bd81
JB		 7937 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7938 if (!ntrig) {
7939 err = -ENOMEM;
7940 goto error;
ff1b6e69 7941 }
ae33bd81 7942 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 7943 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 7944
ae33bd81 7945 set_wakeup:
6abb9cb9
JB		 7946 if (rdev->ops->set_wakeup &&
7947 prev_enabled != !!rdev->wiphy.wowlan_config)
7948 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 7949
ff1b6e69
JB		 7950 return 0;
7951 error:
7952 for (i = 0; i < new_triggers.n_patterns; i++)
7953 kfree(new_triggers.patterns[i].mask);
7954 kfree(new_triggers.patterns);
2a0e047e
JB		 7955 if (new_triggers.tcp && new_triggers.tcp->sock)
7956 sock_release(new_triggers.tcp->sock);
7957 kfree(new_triggers.tcp);
ff1b6e69
JB		 7958 return err;
7959}
dfb89c56 7960#endif
ff1b6e69 7961
e5497d76
JB		 7962static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7963{
7964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7965 struct net_device *dev = info->user_ptr[1];
7966 struct wireless_dev *wdev = dev->ieee80211_ptr;
7967 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7968 struct cfg80211_gtk_rekey_data rekey_data;
7969 int err;
7970
7971 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7972 return -EINVAL;
7973
7974 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7975 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7976 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7977 nl80211_rekey_policy);
7978 if (err)
7979 return err;
7980
7981 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7982 return -ERANGE;
7983 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7984 return -ERANGE;
7985 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7986 return -ERANGE;
7987
7988 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7989 NL80211_KEK_LEN);
7990 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7991 NL80211_KCK_LEN);
7992 memcpy(rekey_data.replay_ctr,
7993 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7994 NL80211_REPLAY_CTR_LEN);
7995
7996 wdev_lock(wdev);
7997 if (!wdev->current_bss) {
7998 err = -ENOTCONN;
7999 goto out;
8000 }
8001
8002 if (!rdev->ops->set_rekey_data) {
8003 err = -EOPNOTSUPP;
8004 goto out;
8005 }
8006
e35e4d28 8007 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8008 out:
8009 wdev_unlock(wdev);
8010 return err;
8011}
8012
28946da7
JB		 8013static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8014 struct genl_info *info)
8015{
8016 struct net_device *dev = info->user_ptr[1];
8017 struct wireless_dev *wdev = dev->ieee80211_ptr;
8018
8019 if (wdev->iftype != NL80211_IFTYPE_AP &&
8020 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8021 return -EINVAL;
8022
15e47304 8023 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8024 return -EBUSY;
8025
15e47304 8026 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8027 return 0;
8028}
8029
7f6cf311
JB		 8030static int nl80211_probe_client(struct sk_buff *skb,
8031 struct genl_info *info)
8032{
8033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8034 struct net_device *dev = info->user_ptr[1];
8035 struct wireless_dev *wdev = dev->ieee80211_ptr;
8036 struct sk_buff *msg;
8037 void *hdr;
8038 const u8 *addr;
8039 u64 cookie;
8040 int err;
8041
8042 if (wdev->iftype != NL80211_IFTYPE_AP &&
8043 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8044 return -EOPNOTSUPP;
8045
8046 if (!info->attrs[NL80211_ATTR_MAC])
8047 return -EINVAL;
8048
8049 if (!rdev->ops->probe_client)
8050 return -EOPNOTSUPP;
8051
8052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8053 if (!msg)
8054 return -ENOMEM;
8055
15e47304 8056 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 8057 NL80211_CMD_PROBE_CLIENT);
8058
8059 if (IS_ERR(hdr)) {
8060 err = PTR_ERR(hdr);
8061 goto free_msg;
8062 }
8063
8064 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8065
e35e4d28 8066 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8067 if (err)
8068 goto free_msg;
8069
9360ffd1
DM		 8070 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8071 goto nla_put_failure;
7f6cf311
JB		 8072
8073 genlmsg_end(msg, hdr);
8074
8075 return genlmsg_reply(msg, info);
8076
8077 nla_put_failure:
8078 err = -ENOBUFS;
8079 free_msg:
8080 nlmsg_free(msg);
8081 return err;
8082}
8083
5e760230
JB		 8084static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8085{
8086 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8087 struct cfg80211_beacon_registration *reg, *nreg;
8088 int rv;
5e760230
JB		 8089
8090 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8091 return -EOPNOTSUPP;
8092
37c73b5f
BG		 8093 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8094 if (!nreg)
8095 return -ENOMEM;
8096
8097 /* First, check if already registered. */
8098 spin_lock_bh(&rdev->beacon_registrations_lock);
8099 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8100 if (reg->nlportid == info->snd_portid) {
8101 rv = -EALREADY;
8102 goto out_err;
8103 }
8104 }
8105 /* Add it to the list */
8106 nreg->nlportid = info->snd_portid;
8107 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8108
37c73b5f 8109 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8110
8111 return 0;
37c73b5f
BG		 8112out_err:
8113 spin_unlock_bh(&rdev->beacon_registrations_lock);
8114 kfree(nreg);
8115 return rv;
5e760230
JB		 8116}
8117
98104fde
JB		 8118static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8119{
8120 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8121 struct wireless_dev *wdev = info->user_ptr[1];
8122 int err;
8123
8124 if (!rdev->ops->start_p2p_device)
8125 return -EOPNOTSUPP;
8126
8127 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8128 return -EOPNOTSUPP;
8129
8130 if (wdev->p2p_started)
8131 return 0;
8132
98104fde 8133 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8134 if (err)
8135 return err;
8136
eeb126e9 8137 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8138 if (err)
8139 return err;
8140
8141 wdev->p2p_started = true;
98104fde 8142 rdev->opencount++;
98104fde
JB		 8143
8144 return 0;
8145}
8146
8147static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8148{
8149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8150 struct wireless_dev *wdev = info->user_ptr[1];
8151
8152 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8153 return -EOPNOTSUPP;
8154
8155 if (!rdev->ops->stop_p2p_device)
8156 return -EOPNOTSUPP;
8157
f9f47529 8158 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8159
8160 return 0;
8161}
8162
3713b4e3
JB		 8163static int nl80211_get_protocol_features(struct sk_buff *skb,
8164 struct genl_info *info)
8165{
8166 void *hdr;
8167 struct sk_buff *msg;
8168
8169 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8170 if (!msg)
8171 return -ENOMEM;
8172
8173 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8174 NL80211_CMD_GET_PROTOCOL_FEATURES);
8175 if (!hdr)
8176 goto nla_put_failure;
8177
8178 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8179 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8180 goto nla_put_failure;
8181
8182 genlmsg_end(msg, hdr);
8183 return genlmsg_reply(msg, info);
8184
8185 nla_put_failure:
8186 kfree_skb(msg);
8187 return -ENOBUFS;
8188}
8189
355199e0
JM		 8190static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8191{
8192 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8193 struct cfg80211_update_ft_ies_params ft_params;
8194 struct net_device *dev = info->user_ptr[1];
8195
8196 if (!rdev->ops->update_ft_ies)
8197 return -EOPNOTSUPP;
8198
8199 if (!info->attrs[NL80211_ATTR_MDID] ||
8200 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8201 return -EINVAL;
8202
8203 memset(&ft_params, 0, sizeof(ft_params));
8204 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8205 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8206 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8207
8208 return rdev_update_ft_ies(rdev, dev, &ft_params);
8209}
8210
5de17984
AS		 8211static int nl80211_crit_protocol_start(struct sk_buff *skb,
8212 struct genl_info *info)
8213{
8214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8215 struct wireless_dev *wdev = info->user_ptr[1];
8216 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8217 u16 duration;
8218 int ret;
8219
8220 if (!rdev->ops->crit_proto_start)
8221 return -EOPNOTSUPP;
8222
8223 if (WARN_ON(!rdev->ops->crit_proto_stop))
8224 return -EINVAL;
8225
8226 if (rdev->crit_proto_nlportid)
8227 return -EBUSY;
8228
8229 /* determine protocol if provided */
8230 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8231 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8232
8233 if (proto >= NUM_NL80211_CRIT_PROTO)
8234 return -EINVAL;
8235
8236 /* timeout must be provided */
8237 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8238 return -EINVAL;
8239
8240 duration =
8241 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8242
8243 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8244 return -ERANGE;
8245
8246 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8247 if (!ret)
8248 rdev->crit_proto_nlportid = info->snd_portid;
8249
8250 return ret;
8251}
8252
8253static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8254 struct genl_info *info)
8255{
8256 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8257 struct wireless_dev *wdev = info->user_ptr[1];
8258
8259 if (!rdev->ops->crit_proto_stop)
8260 return -EOPNOTSUPP;
8261
8262 if (rdev->crit_proto_nlportid) {
8263 rdev->crit_proto_nlportid = 0;
8264 rdev_crit_proto_stop(rdev, wdev);
8265 }
8266 return 0;
8267}
8268
4c476991
JB		 8269#define NL80211_FLAG_NEED_WIPHY 0x01
8270#define NL80211_FLAG_NEED_NETDEV 0x02
8271#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8272#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8273#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8274 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8275#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8276/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8277#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8278 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 8279
8280static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8281 struct genl_info *info)
8282{
8283 struct cfg80211_registered_device *rdev;
89a54e48 8284 struct wireless_dev *wdev;
4c476991 8285 struct net_device *dev;
4c476991
JB		 8286 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8287
8288 if (rtnl)
8289 rtnl_lock();
8290
8291 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 8292 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 8293 if (IS_ERR(rdev)) {
8294 if (rtnl)
8295 rtnl_unlock();
8296 return PTR_ERR(rdev);
8297 }
8298 info->user_ptr[0] = rdev;
1bf614ef
JB		 8299 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8300 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 8301 ASSERT_RTNL();
8302
89a54e48
JB		 8303 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8304 info->attrs);
8305 if (IS_ERR(wdev)) {
4c476991
JB		 8306 if (rtnl)
8307 rtnl_unlock();
89a54e48 8308 return PTR_ERR(wdev);
4c476991 8309 }
89a54e48 8310
89a54e48
JB		 8311 dev = wdev->netdev;
8312 rdev = wiphy_to_dev(wdev->wiphy);
8313
1bf614ef
JB		 8314 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8315 if (!dev) {
1bf614ef
JB		 8316 if (rtnl)
8317 rtnl_unlock();
8318 return -EINVAL;
8319 }
8320
8321 info->user_ptr[1] = dev;
8322 } else {
8323 info->user_ptr[1] = wdev;
41265714 8324 }
1bf614ef
JB		 8325
8326 if (dev) {
8327 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8328 !netif_running(dev)) {
1bf614ef
JB		 8329 if (rtnl)
8330 rtnl_unlock();
8331 return -ENETDOWN;
8332 }
8333
8334 dev_hold(dev);
98104fde
JB		 8335 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8336 if (!wdev->p2p_started) {
98104fde
JB		 8337 if (rtnl)
8338 rtnl_unlock();
8339 return -ENETDOWN;
8340 }
41265714 8341 }
89a54e48 8342
4c476991 8343 info->user_ptr[0] = rdev;
4c476991
JB		 8344 }
8345
8346 return 0;
8347}
8348
8349static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8350 struct genl_info *info)
8351{
1bf614ef
JB		 8352 if (info->user_ptr[1]) {
8353 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8354 struct wireless_dev *wdev = info->user_ptr[1];
8355
8356 if (wdev->netdev)
8357 dev_put(wdev->netdev);
8358 } else {
8359 dev_put(info->user_ptr[1]);
8360 }
8361 }
4c476991
JB		 8362 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8363 rtnl_unlock();
8364}
8365
55682965
JB		 8366static struct genl_ops nl80211_ops[] = {
8367 {
8368 .cmd = NL80211_CMD_GET_WIPHY,
8369 .doit = nl80211_get_wiphy,
8370 .dumpit = nl80211_dump_wiphy,
8371 .policy = nl80211_policy,
8372 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8373 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8374 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8375 },
8376 {
8377 .cmd = NL80211_CMD_SET_WIPHY,
8378 .doit = nl80211_set_wiphy,
8379 .policy = nl80211_policy,
8380 .flags = GENL_ADMIN_PERM,
4c476991 8381 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 8382 },
8383 {
8384 .cmd = NL80211_CMD_GET_INTERFACE,
8385 .doit = nl80211_get_interface,
8386 .dumpit = nl80211_dump_interface,
8387 .policy = nl80211_policy,
8388 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8389 .internal_flags = NL80211_FLAG_NEED_WDEV |
8390 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8391 },
8392 {
8393 .cmd = NL80211_CMD_SET_INTERFACE,
8394 .doit = nl80211_set_interface,
8395 .policy = nl80211_policy,
8396 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8397 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8398 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8399 },
8400 {
8401 .cmd = NL80211_CMD_NEW_INTERFACE,
8402 .doit = nl80211_new_interface,
8403 .policy = nl80211_policy,
8404 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8405 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8406 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8407 },
8408 {
8409 .cmd = NL80211_CMD_DEL_INTERFACE,
8410 .doit = nl80211_del_interface,
8411 .policy = nl80211_policy,
41ade00f 8412 .flags = GENL_ADMIN_PERM,
84efbb84 8413 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8414 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8415 },
8416 {
8417 .cmd = NL80211_CMD_GET_KEY,
8418 .doit = nl80211_get_key,
8419 .policy = nl80211_policy,
8420 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8421 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8422 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8423 },
8424 {
8425 .cmd = NL80211_CMD_SET_KEY,
8426 .doit = nl80211_set_key,
8427 .policy = nl80211_policy,
8428 .flags = GENL_ADMIN_PERM,
41265714 8429 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8430 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8431 },
8432 {
8433 .cmd = NL80211_CMD_NEW_KEY,
8434 .doit = nl80211_new_key,
8435 .policy = nl80211_policy,
8436 .flags = GENL_ADMIN_PERM,
41265714 8437 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8438 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8439 },
8440 {
8441 .cmd = NL80211_CMD_DEL_KEY,
8442 .doit = nl80211_del_key,
8443 .policy = nl80211_policy,
55682965 8444 .flags = GENL_ADMIN_PERM,
41265714 8445 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8446 NL80211_FLAG_NEED_RTNL,
55682965 8447 },
ed1b6cc7
JB		 8448 {
8449 .cmd = NL80211_CMD_SET_BEACON,
8450 .policy = nl80211_policy,
8451 .flags = GENL_ADMIN_PERM,
8860020e 8452 .doit = nl80211_set_beacon,
2b5f8b0b 8453 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8454 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8455 },
8456 {
8860020e 8457 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 8458 .policy = nl80211_policy,
8459 .flags = GENL_ADMIN_PERM,
8860020e 8460 .doit = nl80211_start_ap,
2b5f8b0b 8461 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8462 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8463 },
8464 {
8860020e 8465 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 8466 .policy = nl80211_policy,
8467 .flags = GENL_ADMIN_PERM,
8860020e 8468 .doit = nl80211_stop_ap,
2b5f8b0b 8469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8470 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 8471 },
5727ef1b
JB		 8472 {
8473 .cmd = NL80211_CMD_GET_STATION,
8474 .doit = nl80211_get_station,
2ec600d6 8475 .dumpit = nl80211_dump_station,
5727ef1b 8476 .policy = nl80211_policy,
4c476991
JB		 8477 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8478 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8479 },
8480 {
8481 .cmd = NL80211_CMD_SET_STATION,
8482 .doit = nl80211_set_station,
8483 .policy = nl80211_policy,
8484 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8485 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8486 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8487 },
8488 {
8489 .cmd = NL80211_CMD_NEW_STATION,
8490 .doit = nl80211_new_station,
8491 .policy = nl80211_policy,
8492 .flags = GENL_ADMIN_PERM,
41265714 8493 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8494 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8495 },
8496 {
8497 .cmd = NL80211_CMD_DEL_STATION,
8498 .doit = nl80211_del_station,
8499 .policy = nl80211_policy,
2ec600d6 8500 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8501 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8502 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8503 },
8504 {
8505 .cmd = NL80211_CMD_GET_MPATH,
8506 .doit = nl80211_get_mpath,
8507 .dumpit = nl80211_dump_mpath,
8508 .policy = nl80211_policy,
8509 .flags = GENL_ADMIN_PERM,
41265714 8510 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8511 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8512 },
8513 {
8514 .cmd = NL80211_CMD_SET_MPATH,
8515 .doit = nl80211_set_mpath,
8516 .policy = nl80211_policy,
8517 .flags = GENL_ADMIN_PERM,
41265714 8518 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8519 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8520 },
8521 {
8522 .cmd = NL80211_CMD_NEW_MPATH,
8523 .doit = nl80211_new_mpath,
8524 .policy = nl80211_policy,
8525 .flags = GENL_ADMIN_PERM,
41265714 8526 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8527 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8528 },
8529 {
8530 .cmd = NL80211_CMD_DEL_MPATH,
8531 .doit = nl80211_del_mpath,
8532 .policy = nl80211_policy,
9f1ba906 8533 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8534 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8535 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 8536 },
8537 {
8538 .cmd = NL80211_CMD_SET_BSS,
8539 .doit = nl80211_set_bss,
8540 .policy = nl80211_policy,
b2e1b302 8541 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8542 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8543 NL80211_FLAG_NEED_RTNL,
b2e1b302 8544 },
f130347c
LR		 8545 {
8546 .cmd = NL80211_CMD_GET_REG,
8547 .doit = nl80211_get_reg,
8548 .policy = nl80211_policy,
5fe231e8 8549 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 8550 /* can be retrieved by unprivileged users */
8551 },
b2e1b302
LR		 8552 {
8553 .cmd = NL80211_CMD_SET_REG,
8554 .doit = nl80211_set_reg,
8555 .policy = nl80211_policy,
8556 .flags = GENL_ADMIN_PERM,
5fe231e8 8557 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 8558 },
8559 {
8560 .cmd = NL80211_CMD_REQ_SET_REG,
8561 .doit = nl80211_req_set_reg,
8562 .policy = nl80211_policy,
93da9cc1 8563 .flags = GENL_ADMIN_PERM,
8564 },
8565 {
24bdd9f4
JC		 8566 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8567 .doit = nl80211_get_mesh_config,
93da9cc1 8568 .policy = nl80211_policy,
8569 /* can be retrieved by unprivileged users */
2b5f8b0b 8570 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8571 NL80211_FLAG_NEED_RTNL,
93da9cc1 8572 },
8573 {
24bdd9f4
JC		 8574 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8575 .doit = nl80211_update_mesh_config,
93da9cc1 8576 .policy = nl80211_policy,
9aed3cc1 8577 .flags = GENL_ADMIN_PERM,
29cbe68c 8578 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8579 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8580 },
2a519311
JB		 8581 {
8582 .cmd = NL80211_CMD_TRIGGER_SCAN,
8583 .doit = nl80211_trigger_scan,
8584 .policy = nl80211_policy,
8585 .flags = GENL_ADMIN_PERM,
fd014284 8586 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8587 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8588 },
8589 {
8590 .cmd = NL80211_CMD_GET_SCAN,
8591 .policy = nl80211_policy,
8592 .dumpit = nl80211_dump_scan,
8593 },
807f8a8c
LC		 8594 {
8595 .cmd = NL80211_CMD_START_SCHED_SCAN,
8596 .doit = nl80211_start_sched_scan,
8597 .policy = nl80211_policy,
8598 .flags = GENL_ADMIN_PERM,
8599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8600 NL80211_FLAG_NEED_RTNL,
8601 },
8602 {
8603 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8604 .doit = nl80211_stop_sched_scan,
8605 .policy = nl80211_policy,
8606 .flags = GENL_ADMIN_PERM,
8607 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8608 NL80211_FLAG_NEED_RTNL,
8609 },
636a5d36
JM		 8610 {
8611 .cmd = NL80211_CMD_AUTHENTICATE,
8612 .doit = nl80211_authenticate,
8613 .policy = nl80211_policy,
8614 .flags = GENL_ADMIN_PERM,
41265714 8615 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8616 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8617 },
8618 {
8619 .cmd = NL80211_CMD_ASSOCIATE,
8620 .doit = nl80211_associate,
8621 .policy = nl80211_policy,
8622 .flags = GENL_ADMIN_PERM,
41265714 8623 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8624 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8625 },
8626 {
8627 .cmd = NL80211_CMD_DEAUTHENTICATE,
8628 .doit = nl80211_deauthenticate,
8629 .policy = nl80211_policy,
8630 .flags = GENL_ADMIN_PERM,
41265714 8631 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8632 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8633 },
8634 {
8635 .cmd = NL80211_CMD_DISASSOCIATE,
8636 .doit = nl80211_disassociate,
8637 .policy = nl80211_policy,
8638 .flags = GENL_ADMIN_PERM,
41265714 8639 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8640 NL80211_FLAG_NEED_RTNL,
636a5d36 8641 },
04a773ad
JB		 8642 {
8643 .cmd = NL80211_CMD_JOIN_IBSS,
8644 .doit = nl80211_join_ibss,
8645 .policy = nl80211_policy,
8646 .flags = GENL_ADMIN_PERM,
41265714 8647 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8648 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 8649 },
8650 {
8651 .cmd = NL80211_CMD_LEAVE_IBSS,
8652 .doit = nl80211_leave_ibss,
8653 .policy = nl80211_policy,
8654 .flags = GENL_ADMIN_PERM,
41265714 8655 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8656 NL80211_FLAG_NEED_RTNL,
04a773ad 8657 },
aff89a9b
JB		 8658#ifdef CONFIG_NL80211_TESTMODE
8659 {
8660 .cmd = NL80211_CMD_TESTMODE,
8661 .doit = nl80211_testmode_do,
71063f0e 8662 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 8663 .policy = nl80211_policy,
8664 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8665 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8666 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 8667 },
8668#endif
b23aa676
SO		 8669 {
8670 .cmd = NL80211_CMD_CONNECT,
8671 .doit = nl80211_connect,
8672 .policy = nl80211_policy,
8673 .flags = GENL_ADMIN_PERM,
41265714 8674 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8675 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 8676 },
8677 {
8678 .cmd = NL80211_CMD_DISCONNECT,
8679 .doit = nl80211_disconnect,
8680 .policy = nl80211_policy,
8681 .flags = GENL_ADMIN_PERM,
41265714 8682 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8683 NL80211_FLAG_NEED_RTNL,
b23aa676 8684 },
463d0183
JB		 8685 {
8686 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8687 .doit = nl80211_wiphy_netns,
8688 .policy = nl80211_policy,
8689 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8690 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8691 NL80211_FLAG_NEED_RTNL,
463d0183 8692 },
61fa713c
HS		 8693 {
8694 .cmd = NL80211_CMD_GET_SURVEY,
8695 .policy = nl80211_policy,
8696 .dumpit = nl80211_dump_survey,
8697 },
67fbb16b
SO		 8698 {
8699 .cmd = NL80211_CMD_SET_PMKSA,
8700 .doit = nl80211_setdel_pmksa,
8701 .policy = nl80211_policy,
8702 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8703 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8704 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8705 },
8706 {
8707 .cmd = NL80211_CMD_DEL_PMKSA,
8708 .doit = nl80211_setdel_pmksa,
8709 .policy = nl80211_policy,
8710 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8711 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8712 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8713 },
8714 {
8715 .cmd = NL80211_CMD_FLUSH_PMKSA,
8716 .doit = nl80211_flush_pmksa,
8717 .policy = nl80211_policy,
8718 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8719 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8720 NL80211_FLAG_NEED_RTNL,
67fbb16b 8721 },
9588bbd5
JM		 8722 {
8723 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8724 .doit = nl80211_remain_on_channel,
8725 .policy = nl80211_policy,
8726 .flags = GENL_ADMIN_PERM,
71bbc994 8727 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8728 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 8729 },
8730 {
8731 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8732 .doit = nl80211_cancel_remain_on_channel,
8733 .policy = nl80211_policy,
8734 .flags = GENL_ADMIN_PERM,
71bbc994 8735 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8736 NL80211_FLAG_NEED_RTNL,
9588bbd5 8737 },
13ae75b1
JM		 8738 {
8739 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8740 .doit = nl80211_set_tx_bitrate_mask,
8741 .policy = nl80211_policy,
8742 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8743 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8744 NL80211_FLAG_NEED_RTNL,
13ae75b1 8745 },
026331c4 8746 {
2e161f78
JB		 8747 .cmd = NL80211_CMD_REGISTER_FRAME,
8748 .doit = nl80211_register_mgmt,
026331c4
JM		 8749 .policy = nl80211_policy,
8750 .flags = GENL_ADMIN_PERM,
71bbc994 8751 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8752 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 8753 },
8754 {
2e161f78
JB		 8755 .cmd = NL80211_CMD_FRAME,
8756 .doit = nl80211_tx_mgmt,
026331c4 8757 .policy = nl80211_policy,
f7ca38df 8758 .flags = GENL_ADMIN_PERM,
71bbc994 8759 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 8760 NL80211_FLAG_NEED_RTNL,
8761 },
8762 {
8763 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8764 .doit = nl80211_tx_mgmt_cancel_wait,
8765 .policy = nl80211_policy,
026331c4 8766 .flags = GENL_ADMIN_PERM,
71bbc994 8767 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8768 NL80211_FLAG_NEED_RTNL,
026331c4 8769 },
ffb9eb3d
KV		 8770 {
8771 .cmd = NL80211_CMD_SET_POWER_SAVE,
8772 .doit = nl80211_set_power_save,
8773 .policy = nl80211_policy,
8774 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8775 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8776 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 8777 },
8778 {
8779 .cmd = NL80211_CMD_GET_POWER_SAVE,
8780 .doit = nl80211_get_power_save,
8781 .policy = nl80211_policy,
8782 /* can be retrieved by unprivileged users */
4c476991
JB		 8783 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8784 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 8785 },
d6dc1a38
JO		 8786 {
8787 .cmd = NL80211_CMD_SET_CQM,
8788 .doit = nl80211_set_cqm,
8789 .policy = nl80211_policy,
8790 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8791 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8792 NL80211_FLAG_NEED_RTNL,
d6dc1a38 8793 },
f444de05
JB		 8794 {
8795 .cmd = NL80211_CMD_SET_CHANNEL,
8796 .doit = nl80211_set_channel,
8797 .policy = nl80211_policy,
8798 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8799 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8800 NL80211_FLAG_NEED_RTNL,
f444de05 8801 },
e8347eba
BJ		 8802 {
8803 .cmd = NL80211_CMD_SET_WDS_PEER,
8804 .doit = nl80211_set_wds_peer,
8805 .policy = nl80211_policy,
8806 .flags = GENL_ADMIN_PERM,
43b19952
JB		 8807 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8808 NL80211_FLAG_NEED_RTNL,
e8347eba 8809 },
29cbe68c
JB		 8810 {
8811 .cmd = NL80211_CMD_JOIN_MESH,
8812 .doit = nl80211_join_mesh,
8813 .policy = nl80211_policy,
8814 .flags = GENL_ADMIN_PERM,
8815 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8816 NL80211_FLAG_NEED_RTNL,
8817 },
8818 {
8819 .cmd = NL80211_CMD_LEAVE_MESH,
8820 .doit = nl80211_leave_mesh,
8821 .policy = nl80211_policy,
8822 .flags = GENL_ADMIN_PERM,
8823 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8824 NL80211_FLAG_NEED_RTNL,
8825 },
dfb89c56 8826#ifdef CONFIG_PM
ff1b6e69
JB		 8827 {
8828 .cmd = NL80211_CMD_GET_WOWLAN,
8829 .doit = nl80211_get_wowlan,
8830 .policy = nl80211_policy,
8831 /* can be retrieved by unprivileged users */
8832 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8833 NL80211_FLAG_NEED_RTNL,
8834 },
8835 {
8836 .cmd = NL80211_CMD_SET_WOWLAN,
8837 .doit = nl80211_set_wowlan,
8838 .policy = nl80211_policy,
8839 .flags = GENL_ADMIN_PERM,
8840 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8841 NL80211_FLAG_NEED_RTNL,
8842 },
dfb89c56 8843#endif
e5497d76
JB		 8844 {
8845 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8846 .doit = nl80211_set_rekey_data,
8847 .policy = nl80211_policy,
8848 .flags = GENL_ADMIN_PERM,
8849 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8850 NL80211_FLAG_NEED_RTNL,
8851 },
109086ce
AN		 8852 {
8853 .cmd = NL80211_CMD_TDLS_MGMT,
8854 .doit = nl80211_tdls_mgmt,
8855 .policy = nl80211_policy,
8856 .flags = GENL_ADMIN_PERM,
8857 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8858 NL80211_FLAG_NEED_RTNL,
8859 },
8860 {
8861 .cmd = NL80211_CMD_TDLS_OPER,
8862 .doit = nl80211_tdls_oper,
8863 .policy = nl80211_policy,
8864 .flags = GENL_ADMIN_PERM,
8865 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8866 NL80211_FLAG_NEED_RTNL,
8867 },
28946da7
JB		 8868 {
8869 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8870 .doit = nl80211_register_unexpected_frame,
8871 .policy = nl80211_policy,
8872 .flags = GENL_ADMIN_PERM,
8873 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8874 NL80211_FLAG_NEED_RTNL,
8875 },
7f6cf311
JB		 8876 {
8877 .cmd = NL80211_CMD_PROBE_CLIENT,
8878 .doit = nl80211_probe_client,
8879 .policy = nl80211_policy,
8880 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8881 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 8882 NL80211_FLAG_NEED_RTNL,
8883 },
5e760230
JB		 8884 {
8885 .cmd = NL80211_CMD_REGISTER_BEACONS,
8886 .doit = nl80211_register_beacons,
8887 .policy = nl80211_policy,
8888 .flags = GENL_ADMIN_PERM,
8889 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8890 NL80211_FLAG_NEED_RTNL,
8891 },
1d9d9213
SW		 8892 {
8893 .cmd = NL80211_CMD_SET_NOACK_MAP,
8894 .doit = nl80211_set_noack_map,
8895 .policy = nl80211_policy,
8896 .flags = GENL_ADMIN_PERM,
8897 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8898 NL80211_FLAG_NEED_RTNL,
8899 },
98104fde
JB		 8900 {
8901 .cmd = NL80211_CMD_START_P2P_DEVICE,
8902 .doit = nl80211_start_p2p_device,
8903 .policy = nl80211_policy,
8904 .flags = GENL_ADMIN_PERM,
8905 .internal_flags = NL80211_FLAG_NEED_WDEV |
8906 NL80211_FLAG_NEED_RTNL,
8907 },
8908 {
8909 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8910 .doit = nl80211_stop_p2p_device,
8911 .policy = nl80211_policy,
8912 .flags = GENL_ADMIN_PERM,
8913 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8914 NL80211_FLAG_NEED_RTNL,
8915 },
f4e583c8
AQ		 8916 {
8917 .cmd = NL80211_CMD_SET_MCAST_RATE,
8918 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 8919 .policy = nl80211_policy,
8920 .flags = GENL_ADMIN_PERM,
8921 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8922 NL80211_FLAG_NEED_RTNL,
8923 },
8924 {
8925 .cmd = NL80211_CMD_SET_MAC_ACL,
8926 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 8927 .policy = nl80211_policy,
8928 .flags = GENL_ADMIN_PERM,
8929 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8930 NL80211_FLAG_NEED_RTNL,
8931 },
04f39047
SW		 8932 {
8933 .cmd = NL80211_CMD_RADAR_DETECT,
8934 .doit = nl80211_start_radar_detection,
8935 .policy = nl80211_policy,
8936 .flags = GENL_ADMIN_PERM,
8937 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8938 NL80211_FLAG_NEED_RTNL,
8939 },
3713b4e3
JB		 8940 {
8941 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
8942 .doit = nl80211_get_protocol_features,
8943 .policy = nl80211_policy,
8944 },
355199e0
JM		 8945 {
8946 .cmd = NL80211_CMD_UPDATE_FT_IES,
8947 .doit = nl80211_update_ft_ies,
8948 .policy = nl80211_policy,
8949 .flags = GENL_ADMIN_PERM,
8950 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8951 NL80211_FLAG_NEED_RTNL,
8952 },
5de17984
AS		 8953 {
8954 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
8955 .doit = nl80211_crit_protocol_start,
8956 .policy = nl80211_policy,
8957 .flags = GENL_ADMIN_PERM,
8958 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8959 NL80211_FLAG_NEED_RTNL,
8960 },
8961 {
8962 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
8963 .doit = nl80211_crit_protocol_stop,
8964 .policy = nl80211_policy,
8965 .flags = GENL_ADMIN_PERM,
8966 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8967 NL80211_FLAG_NEED_RTNL,
8968 }
55682965 8969};
9588bbd5 8970
6039f6d2
JM		 8971static struct genl_multicast_group nl80211_mlme_mcgrp = {
8972 .name = "mlme",
8973};
55682965
JB		 8974
8975/* multicast groups */
8976static struct genl_multicast_group nl80211_config_mcgrp = {
8977 .name = "config",
8978};
2a519311
JB		 8979static struct genl_multicast_group nl80211_scan_mcgrp = {
8980 .name = "scan",
8981};
73d54c9e
LR		 8982static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8983 .name = "regulatory",
8984};
55682965
JB		 8985
8986/* notification functions */
8987
8988void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8989{
8990 struct sk_buff *msg;
8991
fd2120ca 8992 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 8993 if (!msg)
8994 return;
8995
3713b4e3
JB		 8996 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
8997 false, NULL, NULL, NULL) < 0) {
55682965
JB		 8998 nlmsg_free(msg);
8999 return;
9000 }
9001
463d0183
JB		 9002 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9003 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 9004}
9005
362a415d
JB		 9006static int nl80211_add_scan_req(struct sk_buff *msg,
9007 struct cfg80211_registered_device *rdev)
9008{
9009 struct cfg80211_scan_request *req = rdev->scan_req;
9010 struct nlattr *nest;
9011 int i;
9012
9013 if (WARN_ON(!req))
9014 return 0;
9015
9016 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9017 if (!nest)
9018 goto nla_put_failure;
9360ffd1
DM		 9019 for (i = 0; i < req->n_ssids; i++) {
9020 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9021 goto nla_put_failure;
9022 }
362a415d
JB		 9023 nla_nest_end(msg, nest);
9024
9025 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9026 if (!nest)
9027 goto nla_put_failure;
9360ffd1
DM		 9028 for (i = 0; i < req->n_channels; i++) {
9029 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9030 goto nla_put_failure;
9031 }
362a415d
JB		 9032 nla_nest_end(msg, nest);
9033
9360ffd1
DM		 9034 if (req->ie &&
9035 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9036 goto nla_put_failure;
362a415d 9037
ed473771
SL		 9038 if (req->flags)
9039 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9040
362a415d
JB		 9041 return 0;
9042 nla_put_failure:
9043 return -ENOBUFS;
9044}
9045
a538e2d5
JB		 9046static int nl80211_send_scan_msg(struct sk_buff *msg,
9047 struct cfg80211_registered_device *rdev,
fd014284 9048 struct wireless_dev *wdev,
15e47304 9049 u32 portid, u32 seq, int flags,
a538e2d5 9050 u32 cmd)
2a519311
JB		 9051{
9052 void *hdr;
9053
15e47304 9054 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9055 if (!hdr)
9056 return -1;
9057
9360ffd1 9058 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9059 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9060 wdev->netdev->ifindex)) ||
9061 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9062 goto nla_put_failure;
2a519311 9063
362a415d
JB		 9064 /* ignore errors and send incomplete event anyway */
9065 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9066
9067 return genlmsg_end(msg, hdr);
9068
9069 nla_put_failure:
9070 genlmsg_cancel(msg, hdr);
9071 return -EMSGSIZE;
9072}
9073
807f8a8c
LC		 9074static int
9075nl80211_send_sched_scan_msg(struct sk_buff *msg,
9076 struct cfg80211_registered_device *rdev,
9077 struct net_device *netdev,
15e47304 9078 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9079{
9080 void *hdr;
9081
15e47304 9082 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9083 if (!hdr)
9084 return -1;
9085
9360ffd1
DM		 9086 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9087 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9088 goto nla_put_failure;
807f8a8c
LC		 9089
9090 return genlmsg_end(msg, hdr);
9091
9092 nla_put_failure:
9093 genlmsg_cancel(msg, hdr);
9094 return -EMSGSIZE;
9095}
9096
a538e2d5 9097void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9098 struct wireless_dev *wdev)
a538e2d5
JB		 9099{
9100 struct sk_buff *msg;
9101
58050fce 9102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9103 if (!msg)
9104 return;
9105
fd014284 9106 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9107 NL80211_CMD_TRIGGER_SCAN) < 0) {
9108 nlmsg_free(msg);
9109 return;
9110 }
9111
463d0183
JB		 9112 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9113 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 9114}
9115
2a519311 9116void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9117 struct wireless_dev *wdev)
2a519311
JB		 9118{
9119 struct sk_buff *msg;
9120
fd2120ca 9121 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9122 if (!msg)
9123 return;
9124
fd014284 9125 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9126 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9127 nlmsg_free(msg);
9128 return;
9129 }
9130
463d0183
JB		 9131 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9132 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9133}
9134
9135void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9136 struct wireless_dev *wdev)
2a519311
JB		 9137{
9138 struct sk_buff *msg;
9139
fd2120ca 9140 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9141 if (!msg)
9142 return;
9143
fd014284 9144 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9145 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9146 nlmsg_free(msg);
9147 return;
9148 }
9149
463d0183
JB		 9150 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9151 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9152}
9153
807f8a8c
LC		 9154void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9155 struct net_device *netdev)
9156{
9157 struct sk_buff *msg;
9158
9159 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9160 if (!msg)
9161 return;
9162
9163 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9164 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9165 nlmsg_free(msg);
9166 return;
9167 }
9168
9169 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9170 nl80211_scan_mcgrp.id, GFP_KERNEL);
9171}
9172
9173void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9174 struct net_device *netdev, u32 cmd)
9175{
9176 struct sk_buff *msg;
9177
58050fce 9178 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9179 if (!msg)
9180 return;
9181
9182 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9183 nlmsg_free(msg);
9184 return;
9185 }
9186
9187 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9188 nl80211_scan_mcgrp.id, GFP_KERNEL);
9189}
9190
73d54c9e
LR		 9191/*
9192 * This can happen on global regulatory changes or device specific settings
9193 * based on custom world regulatory domains.
9194 */
9195void nl80211_send_reg_change_event(struct regulatory_request *request)
9196{
9197 struct sk_buff *msg;
9198 void *hdr;
9199
fd2120ca 9200 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9201 if (!msg)
9202 return;
9203
9204 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9205 if (!hdr) {
9206 nlmsg_free(msg);
9207 return;
9208 }
9209
9210 /* Userspace can always count this one always being set */
9360ffd1
DM		 9211 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9212 goto nla_put_failure;
9213
9214 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9215 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9216 NL80211_REGDOM_TYPE_WORLD))
9217 goto nla_put_failure;
9218 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9219 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9220 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9221 goto nla_put_failure;
9222 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9223 request->intersect) {
9224 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9225 NL80211_REGDOM_TYPE_INTERSECTION))
9226 goto nla_put_failure;
9227 } else {
9228 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9229 NL80211_REGDOM_TYPE_COUNTRY) ||
9230 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9231 request->alpha2))
9232 goto nla_put_failure;
9233 }
9234
f4173766 9235 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9236 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9237 goto nla_put_failure;
73d54c9e 9238
3b7b72ee 9239 genlmsg_end(msg, hdr);
73d54c9e 9240
bc43b28c 9241 rcu_read_lock();
463d0183 9242 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 9243 GFP_ATOMIC);
9244 rcu_read_unlock();
73d54c9e
LR		 9245
9246 return;
9247
9248nla_put_failure:
9249 genlmsg_cancel(msg, hdr);
9250 nlmsg_free(msg);
9251}
9252
6039f6d2
JM		 9253static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9254 struct net_device *netdev,
9255 const u8 *buf, size_t len,
e6d6e342 9256 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9257{
9258 struct sk_buff *msg;
9259 void *hdr;
9260
e6d6e342 9261 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9262 if (!msg)
9263 return;
9264
9265 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9266 if (!hdr) {
9267 nlmsg_free(msg);
9268 return;
9269 }
9270
9360ffd1
DM		 9271 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9272 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9273 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9274 goto nla_put_failure;
6039f6d2 9275
3b7b72ee 9276 genlmsg_end(msg, hdr);
6039f6d2 9277
463d0183
JB		 9278 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9279 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 9280 return;
9281
9282 nla_put_failure:
9283 genlmsg_cancel(msg, hdr);
9284 nlmsg_free(msg);
9285}
9286
9287void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9288 struct net_device *netdev, const u8 *buf,
9289 size_t len, gfp_t gfp)
6039f6d2
JM		 9290{
9291 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9292 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 9293}
9294
9295void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9296 struct net_device *netdev, const u8 *buf,
e6d6e342 9297 size_t len, gfp_t gfp)
6039f6d2 9298{
e6d6e342
JB		 9299 nl80211_send_mlme_event(rdev, netdev, buf, len,
9300 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 9301}
9302
53b46b84 9303void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9304 struct net_device *netdev, const u8 *buf,
9305 size_t len, gfp_t gfp)
6039f6d2
JM		 9306{
9307 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9308 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 9309}
9310
53b46b84
JM		 9311void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9312 struct net_device *netdev, const u8 *buf,
e6d6e342 9313 size_t len, gfp_t gfp)
6039f6d2
JM		 9314{
9315 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9316 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 9317}
9318
6ff57cf8
JB		 9319void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
9320 size_t len)
cf4e594e 9321{
947add36
JB		 9322 struct wireless_dev *wdev = dev->ieee80211_ptr;
9323 struct wiphy *wiphy = wdev->wiphy;
9324 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6ff57cf8
JB		 9325 const struct ieee80211_mgmt *mgmt = (void *)buf;
9326 u32 cmd;
947add36 9327
6ff57cf8
JB		 9328 if (WARN_ON(len < 2))
9329 return;
cf4e594e 9330
6ff57cf8
JB		 9331 if (ieee80211_is_deauth(mgmt->frame_control))
9332 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
9333 else
9334 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 9335
6ff57cf8
JB		 9336 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
9337 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 9338}
6ff57cf8 9339EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 9340
1b06bb40
LR		 9341static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9342 struct net_device *netdev, int cmd,
e6d6e342 9343 const u8 *addr, gfp_t gfp)
1965c853
JM		 9344{
9345 struct sk_buff *msg;
9346 void *hdr;
9347
e6d6e342 9348 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 9349 if (!msg)
9350 return;
9351
9352 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9353 if (!hdr) {
9354 nlmsg_free(msg);
9355 return;
9356 }
9357
9360ffd1
DM		 9358 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9359 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9360 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9361 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9362 goto nla_put_failure;
1965c853 9363
3b7b72ee 9364 genlmsg_end(msg, hdr);
1965c853 9365
463d0183
JB		 9366 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9367 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 9368 return;
9369
9370 nla_put_failure:
9371 genlmsg_cancel(msg, hdr);
9372 nlmsg_free(msg);
9373}
9374
9375void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9376 struct net_device *netdev, const u8 *addr,
9377 gfp_t gfp)
1965c853
JM		 9378{
9379 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 9380 addr, gfp);
1965c853
JM		 9381}
9382
9383void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9384 struct net_device *netdev, const u8 *addr,
9385 gfp_t gfp)
1965c853 9386{
e6d6e342
JB		 9387 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9388 addr, gfp);
1965c853
JM		 9389}
9390
b23aa676
SO		 9391void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9392 struct net_device *netdev, const u8 *bssid,
9393 const u8 *req_ie, size_t req_ie_len,
9394 const u8 *resp_ie, size_t resp_ie_len,
9395 u16 status, gfp_t gfp)
9396{
9397 struct sk_buff *msg;
9398 void *hdr;
9399
58050fce 9400 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9401 if (!msg)
9402 return;
9403
9404 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9405 if (!hdr) {
9406 nlmsg_free(msg);
9407 return;
9408 }
9409
9360ffd1
DM		 9410 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9411 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9412 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9413 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9414 (req_ie &&
9415 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9416 (resp_ie &&
9417 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9418 goto nla_put_failure;
b23aa676 9419
3b7b72ee 9420 genlmsg_end(msg, hdr);
b23aa676 9421
463d0183
JB		 9422 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9423 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9424 return;
9425
9426 nla_put_failure:
9427 genlmsg_cancel(msg, hdr);
9428 nlmsg_free(msg);
9429
9430}
9431
9432void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9433 struct net_device *netdev, const u8 *bssid,
9434 const u8 *req_ie, size_t req_ie_len,
9435 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9436{
9437 struct sk_buff *msg;
9438 void *hdr;
9439
58050fce 9440 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9441 if (!msg)
9442 return;
9443
9444 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9445 if (!hdr) {
9446 nlmsg_free(msg);
9447 return;
9448 }
9449
9360ffd1
DM		 9450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9451 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9452 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9453 (req_ie &&
9454 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9455 (resp_ie &&
9456 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9457 goto nla_put_failure;
b23aa676 9458
3b7b72ee 9459 genlmsg_end(msg, hdr);
b23aa676 9460
463d0183
JB		 9461 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9462 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9463 return;
9464
9465 nla_put_failure:
9466 genlmsg_cancel(msg, hdr);
9467 nlmsg_free(msg);
9468
9469}
9470
9471void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9472 struct net_device *netdev, u16 reason,
667503dd 9473 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 9474{
9475 struct sk_buff *msg;
9476 void *hdr;
9477
58050fce 9478 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 9479 if (!msg)
9480 return;
9481
9482 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9483 if (!hdr) {
9484 nlmsg_free(msg);
9485 return;
9486 }
9487
9360ffd1
DM		 9488 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9489 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9490 (from_ap && reason &&
9491 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9492 (from_ap &&
9493 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9494 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9495 goto nla_put_failure;
b23aa676 9496
3b7b72ee 9497 genlmsg_end(msg, hdr);
b23aa676 9498
463d0183
JB		 9499 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9500 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 9501 return;
9502
9503 nla_put_failure:
9504 genlmsg_cancel(msg, hdr);
9505 nlmsg_free(msg);
9506
9507}
9508
04a773ad
JB		 9509void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9510 struct net_device *netdev, const u8 *bssid,
9511 gfp_t gfp)
9512{
9513 struct sk_buff *msg;
9514 void *hdr;
9515
fd2120ca 9516 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 9517 if (!msg)
9518 return;
9519
9520 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9521 if (!hdr) {
9522 nlmsg_free(msg);
9523 return;
9524 }
9525
9360ffd1
DM		 9526 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9527 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9528 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9529 goto nla_put_failure;
04a773ad 9530
3b7b72ee 9531 genlmsg_end(msg, hdr);
04a773ad 9532
463d0183
JB		 9533 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9534 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 9535 return;
9536
9537 nla_put_failure:
9538 genlmsg_cancel(msg, hdr);
9539 nlmsg_free(msg);
9540}
9541
947add36
JB		 9542void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9543 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 9544{
947add36
JB		 9545 struct wireless_dev *wdev = dev->ieee80211_ptr;
9546 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 9547 struct sk_buff *msg;
9548 void *hdr;
9549
947add36
JB		 9550 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9551 return;
9552
9553 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9554
c93b5e71
JC		 9555 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9556 if (!msg)
9557 return;
9558
9559 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9560 if (!hdr) {
9561 nlmsg_free(msg);
9562 return;
9563 }
9564
9360ffd1 9565 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 9566 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9567 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 9568 (ie_len && ie &&
9569 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9570 goto nla_put_failure;
c93b5e71 9571
3b7b72ee 9572 genlmsg_end(msg, hdr);
c93b5e71
JC		 9573
9574 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9575 nl80211_mlme_mcgrp.id, gfp);
9576 return;
9577
9578 nla_put_failure:
9579 genlmsg_cancel(msg, hdr);
9580 nlmsg_free(msg);
9581}
947add36 9582EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 9583
a3b8b056
JM		 9584void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9585 struct net_device *netdev, const u8 *addr,
9586 enum nl80211_key_type key_type, int key_id,
e6d6e342 9587 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9588{
9589 struct sk_buff *msg;
9590 void *hdr;
9591
e6d6e342 9592 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9593 if (!msg)
9594 return;
9595
9596 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9597 if (!hdr) {
9598 nlmsg_free(msg);
9599 return;
9600 }
9601
9360ffd1
DM		 9602 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9603 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9604 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9605 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9606 (key_id != -1 &&
9607 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9608 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9609 goto nla_put_failure;
a3b8b056 9610
3b7b72ee 9611 genlmsg_end(msg, hdr);
a3b8b056 9612
463d0183
JB		 9613 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9614 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 9615 return;
9616
9617 nla_put_failure:
9618 genlmsg_cancel(msg, hdr);
9619 nlmsg_free(msg);
9620}
9621
6bad8766
LR		 9622void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9623 struct ieee80211_channel *channel_before,
9624 struct ieee80211_channel *channel_after)
9625{
9626 struct sk_buff *msg;
9627 void *hdr;
9628 struct nlattr *nl_freq;
9629
fd2120ca 9630 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 9631 if (!msg)
9632 return;
9633
9634 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9635 if (!hdr) {
9636 nlmsg_free(msg);
9637 return;
9638 }
9639
9640 /*
9641 * Since we are applying the beacon hint to a wiphy we know its
9642 * wiphy_idx is valid
9643 */
9360ffd1
DM		 9644 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9645 goto nla_put_failure;
6bad8766
LR		 9646
9647 /* Before */
9648 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9649 if (!nl_freq)
9650 goto nla_put_failure;
cdc89b97 9651 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 9652 goto nla_put_failure;
9653 nla_nest_end(msg, nl_freq);
9654
9655 /* After */
9656 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9657 if (!nl_freq)
9658 goto nla_put_failure;
cdc89b97 9659 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 9660 goto nla_put_failure;
9661 nla_nest_end(msg, nl_freq);
9662
3b7b72ee 9663 genlmsg_end(msg, hdr);
6bad8766 9664
463d0183
JB		 9665 rcu_read_lock();
9666 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9667 GFP_ATOMIC);
9668 rcu_read_unlock();
6bad8766
LR		 9669
9670 return;
9671
9672nla_put_failure:
9673 genlmsg_cancel(msg, hdr);
9674 nlmsg_free(msg);
9675}
9676
9588bbd5
JM		 9677static void nl80211_send_remain_on_chan_event(
9678 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 9679 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9680 struct ieee80211_channel *chan,
9588bbd5
JM		 9681 unsigned int duration, gfp_t gfp)
9682{
9683 struct sk_buff *msg;
9684 void *hdr;
9685
9686 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9687 if (!msg)
9688 return;
9689
9690 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9691 if (!hdr) {
9692 nlmsg_free(msg);
9693 return;
9694 }
9695
9360ffd1 9696 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9697 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9698 wdev->netdev->ifindex)) ||
00f53350 9699 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 9700 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 9701 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9702 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 9703 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9704 goto nla_put_failure;
9588bbd5 9705
9360ffd1
DM		 9706 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9707 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9708 goto nla_put_failure;
9588bbd5 9709
3b7b72ee 9710 genlmsg_end(msg, hdr);
9588bbd5
JM		 9711
9712 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9713 nl80211_mlme_mcgrp.id, gfp);
9714 return;
9715
9716 nla_put_failure:
9717 genlmsg_cancel(msg, hdr);
9718 nlmsg_free(msg);
9719}
9720
947add36
JB		 9721void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9722 struct ieee80211_channel *chan,
9723 unsigned int duration, gfp_t gfp)
9588bbd5 9724{
947add36
JB		 9725 struct wiphy *wiphy = wdev->wiphy;
9726 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9727
9728 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 9729 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 9730 rdev, wdev, cookie, chan,
42d97a59 9731 duration, gfp);
9588bbd5 9732}
947add36 9733EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 9734
947add36
JB		 9735void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9736 struct ieee80211_channel *chan,
9737 gfp_t gfp)
9588bbd5 9738{
947add36
JB		 9739 struct wiphy *wiphy = wdev->wiphy;
9740 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9741
9742 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 9743 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 9744 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 9745}
947add36 9746EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 9747
947add36
JB		 9748void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9749 struct station_info *sinfo, gfp_t gfp)
98b62183 9750{
947add36
JB		 9751 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9752 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 9753 struct sk_buff *msg;
9754
947add36
JB		 9755 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9756
58050fce 9757 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 9758 if (!msg)
9759 return;
9760
66266b3a
JL		 9761 if (nl80211_send_station(msg, 0, 0, 0,
9762 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 9763 nlmsg_free(msg);
9764 return;
9765 }
9766
9767 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9768 nl80211_mlme_mcgrp.id, gfp);
9769}
947add36 9770EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 9771
947add36 9772void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 9773{
947add36
JB		 9774 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9775 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 9776 struct sk_buff *msg;
9777 void *hdr;
9778
947add36
JB		 9779 trace_cfg80211_del_sta(dev, mac_addr);
9780
58050fce 9781 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 9782 if (!msg)
9783 return;
9784
9785 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9786 if (!hdr) {
9787 nlmsg_free(msg);
9788 return;
9789 }
9790
9360ffd1
DM		 9791 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9792 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9793 goto nla_put_failure;
ec15e68b 9794
3b7b72ee 9795 genlmsg_end(msg, hdr);
ec15e68b
JM		 9796
9797 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9798 nl80211_mlme_mcgrp.id, gfp);
9799 return;
9800
9801 nla_put_failure:
9802 genlmsg_cancel(msg, hdr);
9803 nlmsg_free(msg);
9804}
947add36 9805EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 9806
947add36
JB		 9807void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
9808 enum nl80211_connect_failed_reason reason,
9809 gfp_t gfp)
ed44a951 9810{
947add36
JB		 9811 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9812 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 9813 struct sk_buff *msg;
9814 void *hdr;
9815
9816 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9817 if (!msg)
9818 return;
9819
9820 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9821 if (!hdr) {
9822 nlmsg_free(msg);
9823 return;
9824 }
9825
9826 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9827 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9828 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9829 goto nla_put_failure;
9830
9831 genlmsg_end(msg, hdr);
9832
9833 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9834 nl80211_mlme_mcgrp.id, gfp);
9835 return;
9836
9837 nla_put_failure:
9838 genlmsg_cancel(msg, hdr);
9839 nlmsg_free(msg);
9840}
947add36 9841EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 9842
b92ab5d8
JB		 9843static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9844 const u8 *addr, gfp_t gfp)
28946da7
JB		 9845{
9846 struct wireless_dev *wdev = dev->ieee80211_ptr;
9847 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9848 struct sk_buff *msg;
9849 void *hdr;
15e47304 9850 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 9851
15e47304 9852 if (!nlportid)
28946da7
JB		 9853 return false;
9854
9855 msg = nlmsg_new(100, gfp);
9856 if (!msg)
9857 return true;
9858
b92ab5d8 9859 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 9860 if (!hdr) {
9861 nlmsg_free(msg);
9862 return true;
9863 }
9864
9360ffd1
DM		 9865 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9866 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9867 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9868 goto nla_put_failure;
28946da7 9869
9c90a9f6 9870 genlmsg_end(msg, hdr);
15e47304 9871 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 9872 return true;
9873
9874 nla_put_failure:
9875 genlmsg_cancel(msg, hdr);
9876 nlmsg_free(msg);
9877 return true;
9878}
9879
947add36
JB		 9880bool cfg80211_rx_spurious_frame(struct net_device *dev,
9881 const u8 *addr, gfp_t gfp)
b92ab5d8 9882{
947add36
JB		 9883 struct wireless_dev *wdev = dev->ieee80211_ptr;
9884 bool ret;
9885
9886 trace_cfg80211_rx_spurious_frame(dev, addr);
9887
9888 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9889 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
9890 trace_cfg80211_return_bool(false);
9891 return false;
9892 }
9893 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9894 addr, gfp);
9895 trace_cfg80211_return_bool(ret);
9896 return ret;
b92ab5d8 9897}
947add36 9898EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 9899
947add36
JB		 9900bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
9901 const u8 *addr, gfp_t gfp)
b92ab5d8 9902{
947add36
JB		 9903 struct wireless_dev *wdev = dev->ieee80211_ptr;
9904 bool ret;
9905
9906 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
9907
9908 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9909 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
9910 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
9911 trace_cfg80211_return_bool(false);
9912 return false;
9913 }
9914 ret = __nl80211_unexpected_frame(dev,
9915 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9916 addr, gfp);
9917 trace_cfg80211_return_bool(ret);
9918 return ret;
b92ab5d8 9919}
947add36 9920EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 9921
2e161f78 9922int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 9923 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 9924 int freq, int sig_dbm,
9925 const u8 *buf, size_t len, gfp_t gfp)
026331c4 9926{
71bbc994 9927 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9928 struct sk_buff *msg;
9929 void *hdr;
026331c4
JM		 9930
9931 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9932 if (!msg)
9933 return -ENOMEM;
9934
2e161f78 9935 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 9936 if (!hdr) {
9937 nlmsg_free(msg);
9938 return -ENOMEM;
9939 }
9940
9360ffd1 9941 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9942 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9943 netdev->ifindex)) ||
a838490b 9944 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 9945 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9946 (sig_dbm &&
9947 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9948 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9949 goto nla_put_failure;
026331c4 9950
3b7b72ee 9951 genlmsg_end(msg, hdr);
026331c4 9952
15e47304 9953 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 9954
9955 nla_put_failure:
9956 genlmsg_cancel(msg, hdr);
9957 nlmsg_free(msg);
9958 return -ENOBUFS;
9959}
9960
947add36
JB		 9961void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
9962 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 9963{
947add36
JB		 9964 struct wiphy *wiphy = wdev->wiphy;
9965 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 9966 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9967 struct sk_buff *msg;
9968 void *hdr;
9969
947add36
JB		 9970 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
9971
026331c4
JM		 9972 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9973 if (!msg)
9974 return;
9975
2e161f78 9976 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 9977 if (!hdr) {
9978 nlmsg_free(msg);
9979 return;
9980 }
9981
9360ffd1 9982 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9983 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9984 netdev->ifindex)) ||
a838490b 9985 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 9986 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9987 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9988 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9989 goto nla_put_failure;
026331c4 9990
3b7b72ee 9991 genlmsg_end(msg, hdr);
026331c4
JM		 9992
9993 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9994 return;
9995
9996 nla_put_failure:
9997 genlmsg_cancel(msg, hdr);
9998 nlmsg_free(msg);
9999}
947add36 10000EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 10001
947add36
JB		 10002void cfg80211_cqm_rssi_notify(struct net_device *dev,
10003 enum nl80211_cqm_rssi_threshold_event rssi_event,
10004 gfp_t gfp)
d6dc1a38 10005{
947add36
JB		 10006 struct wireless_dev *wdev = dev->ieee80211_ptr;
10007 struct wiphy *wiphy = wdev->wiphy;
10008 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 10009 struct sk_buff *msg;
10010 struct nlattr *pinfoattr;
10011 void *hdr;
10012
947add36
JB		 10013 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10014
58050fce 10015 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 10016 if (!msg)
10017 return;
10018
10019 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10020 if (!hdr) {
10021 nlmsg_free(msg);
10022 return;
10023 }
10024
9360ffd1 10025 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10026 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10027 goto nla_put_failure;
d6dc1a38
JO		 10028
10029 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10030 if (!pinfoattr)
10031 goto nla_put_failure;
10032
9360ffd1
DM		 10033 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10034 rssi_event))
10035 goto nla_put_failure;
d6dc1a38
JO		 10036
10037 nla_nest_end(msg, pinfoattr);
10038
3b7b72ee 10039 genlmsg_end(msg, hdr);
d6dc1a38
JO		 10040
10041 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10042 nl80211_mlme_mcgrp.id, gfp);
10043 return;
10044
10045 nla_put_failure:
10046 genlmsg_cancel(msg, hdr);
10047 nlmsg_free(msg);
10048}
947add36 10049EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10050
947add36
JB		 10051static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10052 struct net_device *netdev, const u8 *bssid,
10053 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10054{
10055 struct sk_buff *msg;
10056 struct nlattr *rekey_attr;
10057 void *hdr;
10058
58050fce 10059 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10060 if (!msg)
10061 return;
10062
10063 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10064 if (!hdr) {
10065 nlmsg_free(msg);
10066 return;
10067 }
10068
9360ffd1
DM		 10069 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10070 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10071 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10072 goto nla_put_failure;
e5497d76
JB		 10073
10074 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10075 if (!rekey_attr)
10076 goto nla_put_failure;
10077
9360ffd1
DM		 10078 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10079 NL80211_REPLAY_CTR_LEN, replay_ctr))
10080 goto nla_put_failure;
e5497d76
JB		 10081
10082 nla_nest_end(msg, rekey_attr);
10083
3b7b72ee 10084 genlmsg_end(msg, hdr);
e5497d76
JB		 10085
10086 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10087 nl80211_mlme_mcgrp.id, gfp);
10088 return;
10089
10090 nla_put_failure:
10091 genlmsg_cancel(msg, hdr);
10092 nlmsg_free(msg);
10093}
10094
947add36
JB		 10095void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10096 const u8 *replay_ctr, gfp_t gfp)
10097{
10098 struct wireless_dev *wdev = dev->ieee80211_ptr;
10099 struct wiphy *wiphy = wdev->wiphy;
10100 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10101
10102 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10103 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10104}
10105EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10106
10107static void
10108nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10109 struct net_device *netdev, int index,
10110 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10111{
10112 struct sk_buff *msg;
10113 struct nlattr *attr;
10114 void *hdr;
10115
58050fce 10116 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10117 if (!msg)
10118 return;
10119
10120 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10121 if (!hdr) {
10122 nlmsg_free(msg);
10123 return;
10124 }
10125
9360ffd1
DM		 10126 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10127 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10128 goto nla_put_failure;
c9df56b4
JM		 10129
10130 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10131 if (!attr)
10132 goto nla_put_failure;
10133
9360ffd1
DM		 10134 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10135 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10136 (preauth &&
10137 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10138 goto nla_put_failure;
c9df56b4
JM		 10139
10140 nla_nest_end(msg, attr);
10141
3b7b72ee 10142 genlmsg_end(msg, hdr);
c9df56b4
JM		 10143
10144 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10145 nl80211_mlme_mcgrp.id, gfp);
10146 return;
10147
10148 nla_put_failure:
10149 genlmsg_cancel(msg, hdr);
10150 nlmsg_free(msg);
10151}
10152
947add36
JB		 10153void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10154 const u8 *bssid, bool preauth, gfp_t gfp)
10155{
10156 struct wireless_dev *wdev = dev->ieee80211_ptr;
10157 struct wiphy *wiphy = wdev->wiphy;
10158 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10159
10160 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10161 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10162}
10163EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10164
10165static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10166 struct net_device *netdev,
10167 struct cfg80211_chan_def *chandef,
10168 gfp_t gfp)
5314526b
TP		 10169{
10170 struct sk_buff *msg;
10171 void *hdr;
10172
58050fce 10173 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10174 if (!msg)
10175 return;
10176
10177 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10178 if (!hdr) {
10179 nlmsg_free(msg);
10180 return;
10181 }
10182
683b6d3b
JB		 10183 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10184 goto nla_put_failure;
10185
10186 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10187 goto nla_put_failure;
5314526b
TP		 10188
10189 genlmsg_end(msg, hdr);
10190
10191 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10192 nl80211_mlme_mcgrp.id, gfp);
10193 return;
10194
10195 nla_put_failure:
10196 genlmsg_cancel(msg, hdr);
10197 nlmsg_free(msg);
10198}
10199
947add36
JB		 10200void cfg80211_ch_switch_notify(struct net_device *dev,
10201 struct cfg80211_chan_def *chandef)
84f10708 10202{
947add36
JB		 10203 struct wireless_dev *wdev = dev->ieee80211_ptr;
10204 struct wiphy *wiphy = wdev->wiphy;
10205 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10206
10207 trace_cfg80211_ch_switch_notify(dev, chandef);
10208
10209 wdev_lock(wdev);
10210
10211 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10212 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10213 goto out;
10214
10215 wdev->channel = chandef->chan;
10216 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10217out:
10218 wdev_unlock(wdev);
10219 return;
10220}
10221EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10222
10223void cfg80211_cqm_txe_notify(struct net_device *dev,
10224 const u8 *peer, u32 num_packets,
10225 u32 rate, u32 intvl, gfp_t gfp)
10226{
10227 struct wireless_dev *wdev = dev->ieee80211_ptr;
10228 struct wiphy *wiphy = wdev->wiphy;
10229 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 10230 struct sk_buff *msg;
10231 struct nlattr *pinfoattr;
10232 void *hdr;
10233
10234 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10235 if (!msg)
10236 return;
10237
10238 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10239 if (!hdr) {
10240 nlmsg_free(msg);
10241 return;
10242 }
10243
10244 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10245 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10246 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10247 goto nla_put_failure;
10248
10249 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10250 if (!pinfoattr)
10251 goto nla_put_failure;
10252
10253 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10254 goto nla_put_failure;
10255
10256 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10257 goto nla_put_failure;
10258
10259 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10260 goto nla_put_failure;
10261
10262 nla_nest_end(msg, pinfoattr);
10263
10264 genlmsg_end(msg, hdr);
10265
10266 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10267 nl80211_mlme_mcgrp.id, gfp);
10268 return;
10269
10270 nla_put_failure:
10271 genlmsg_cancel(msg, hdr);
10272 nlmsg_free(msg);
10273}
947add36 10274EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 10275
04f39047
SW		 10276void
10277nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10278 struct cfg80211_chan_def *chandef,
10279 enum nl80211_radar_event event,
10280 struct net_device *netdev, gfp_t gfp)
10281{
10282 struct sk_buff *msg;
10283 void *hdr;
10284
10285 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10286 if (!msg)
10287 return;
10288
10289 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10290 if (!hdr) {
10291 nlmsg_free(msg);
10292 return;
10293 }
10294
10295 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10296 goto nla_put_failure;
10297
10298 /* NOP and radar events don't need a netdev parameter */
10299 if (netdev) {
10300 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10301
10302 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10303 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10304 goto nla_put_failure;
10305 }
10306
10307 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10308 goto nla_put_failure;
10309
10310 if (nl80211_send_chandef(msg, chandef))
10311 goto nla_put_failure;
10312
9c90a9f6 10313 genlmsg_end(msg, hdr);
04f39047
SW		 10314
10315 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10316 nl80211_mlme_mcgrp.id, gfp);
10317 return;
10318
10319 nla_put_failure:
10320 genlmsg_cancel(msg, hdr);
10321 nlmsg_free(msg);
10322}
10323
947add36
JB		 10324void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10325 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 10326{
947add36
JB		 10327 struct wireless_dev *wdev = dev->ieee80211_ptr;
10328 struct wiphy *wiphy = wdev->wiphy;
10329 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 10330 struct sk_buff *msg;
10331 struct nlattr *pinfoattr;
10332 void *hdr;
10333
947add36
JB		 10334 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10335
58050fce 10336 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 10337 if (!msg)
10338 return;
10339
10340 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10341 if (!hdr) {
10342 nlmsg_free(msg);
10343 return;
10344 }
10345
9360ffd1 10346 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10347 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 10348 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10349 goto nla_put_failure;
c063dbf5
JB		 10350
10351 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10352 if (!pinfoattr)
10353 goto nla_put_failure;
10354
9360ffd1
DM		 10355 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10356 goto nla_put_failure;
c063dbf5
JB		 10357
10358 nla_nest_end(msg, pinfoattr);
10359
3b7b72ee 10360 genlmsg_end(msg, hdr);
c063dbf5
JB		 10361
10362 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10363 nl80211_mlme_mcgrp.id, gfp);
10364 return;
10365
10366 nla_put_failure:
10367 genlmsg_cancel(msg, hdr);
10368 nlmsg_free(msg);
10369}
947add36 10370EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 10371
7f6cf311
JB		 10372void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10373 u64 cookie, bool acked, gfp_t gfp)
10374{
10375 struct wireless_dev *wdev = dev->ieee80211_ptr;
10376 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10377 struct sk_buff *msg;
10378 void *hdr;
7f6cf311 10379
4ee3e063
BL		 10380 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10381
58050fce 10382 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 10383
7f6cf311
JB		 10384 if (!msg)
10385 return;
10386
10387 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10388 if (!hdr) {
10389 nlmsg_free(msg);
10390 return;
10391 }
10392
9360ffd1
DM		 10393 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10394 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10395 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10396 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10397 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10398 goto nla_put_failure;
7f6cf311 10399
9c90a9f6 10400 genlmsg_end(msg, hdr);
7f6cf311
JB		 10401
10402 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10403 nl80211_mlme_mcgrp.id, gfp);
10404 return;
10405
10406 nla_put_failure:
10407 genlmsg_cancel(msg, hdr);
10408 nlmsg_free(msg);
10409}
10410EXPORT_SYMBOL(cfg80211_probe_status);
10411
5e760230
JB		 10412void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10413 const u8 *frame, size_t len,
37c73b5f 10414 int freq, int sig_dbm)
5e760230
JB		 10415{
10416 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10417 struct sk_buff *msg;
10418 void *hdr;
37c73b5f 10419 struct cfg80211_beacon_registration *reg;
5e760230 10420
4ee3e063
BL		 10421 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10422
37c73b5f
BG		 10423 spin_lock_bh(&rdev->beacon_registrations_lock);
10424 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10425 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10426 if (!msg) {
10427 spin_unlock_bh(&rdev->beacon_registrations_lock);
10428 return;
10429 }
5e760230 10430
37c73b5f
BG		 10431 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10432 if (!hdr)
10433 goto nla_put_failure;
5e760230 10434
37c73b5f
BG		 10435 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10436 (freq &&
10437 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10438 (sig_dbm &&
10439 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10440 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10441 goto nla_put_failure;
5e760230 10442
37c73b5f 10443 genlmsg_end(msg, hdr);
5e760230 10444
37c73b5f
BG		 10445 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10446 }
10447 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10448 return;
10449
10450 nla_put_failure:
37c73b5f
BG		 10451 spin_unlock_bh(&rdev->beacon_registrations_lock);
10452 if (hdr)
10453 genlmsg_cancel(msg, hdr);
5e760230
JB		 10454 nlmsg_free(msg);
10455}
10456EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10457
cd8f7cb4
JB		 10458#ifdef CONFIG_PM
10459void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10460 struct cfg80211_wowlan_wakeup *wakeup,
10461 gfp_t gfp)
10462{
10463 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10464 struct sk_buff *msg;
10465 void *hdr;
9c90a9f6 10466 int size = 200;
cd8f7cb4
JB		 10467
10468 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10469
10470 if (wakeup)
10471 size += wakeup->packet_present_len;
10472
10473 msg = nlmsg_new(size, gfp);
10474 if (!msg)
10475 return;
10476
10477 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10478 if (!hdr)
10479 goto free_msg;
10480
10481 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10482 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10483 goto free_msg;
10484
10485 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10486 wdev->netdev->ifindex))
10487 goto free_msg;
10488
10489 if (wakeup) {
10490 struct nlattr *reasons;
10491
10492 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10493
10494 if (wakeup->disconnect &&
10495 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10496 goto free_msg;
10497 if (wakeup->magic_pkt &&
10498 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10499 goto free_msg;
10500 if (wakeup->gtk_rekey_failure &&
10501 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10502 goto free_msg;
10503 if (wakeup->eap_identity_req &&
10504 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10505 goto free_msg;
10506 if (wakeup->four_way_handshake &&
10507 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10508 goto free_msg;
10509 if (wakeup->rfkill_release &&
10510 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10511 goto free_msg;
10512
10513 if (wakeup->pattern_idx >= 0 &&
10514 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10515 wakeup->pattern_idx))
10516 goto free_msg;
10517
2a0e047e
JB		 10518 if (wakeup->tcp_match)
10519 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10520
10521 if (wakeup->tcp_connlost)
10522 nla_put_flag(msg,
10523 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10524
10525 if (wakeup->tcp_nomoretokens)
10526 nla_put_flag(msg,
10527 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10528
cd8f7cb4
JB		 10529 if (wakeup->packet) {
10530 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10531 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10532
10533 if (!wakeup->packet_80211) {
10534 pkt_attr =
10535 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10536 len_attr =
10537 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10538 }
10539
10540 if (wakeup->packet_len &&
10541 nla_put_u32(msg, len_attr, wakeup->packet_len))
10542 goto free_msg;
10543
10544 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10545 wakeup->packet))
10546 goto free_msg;
10547 }
10548
10549 nla_nest_end(msg, reasons);
10550 }
10551
9c90a9f6 10552 genlmsg_end(msg, hdr);
cd8f7cb4
JB		 10553
10554 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10555 nl80211_mlme_mcgrp.id, gfp);
10556 return;
10557
10558 free_msg:
10559 nlmsg_free(msg);
10560}
10561EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10562#endif
10563
3475b094
JM		 10564void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10565 enum nl80211_tdls_operation oper,
10566 u16 reason_code, gfp_t gfp)
10567{
10568 struct wireless_dev *wdev = dev->ieee80211_ptr;
10569 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10570 struct sk_buff *msg;
10571 void *hdr;
3475b094
JM		 10572
10573 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10574 reason_code);
10575
10576 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10577 if (!msg)
10578 return;
10579
10580 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10581 if (!hdr) {
10582 nlmsg_free(msg);
10583 return;
10584 }
10585
10586 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10587 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10588 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10589 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10590 (reason_code > 0 &&
10591 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10592 goto nla_put_failure;
10593
9c90a9f6 10594 genlmsg_end(msg, hdr);
3475b094
JM		 10595
10596 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10597 nl80211_mlme_mcgrp.id, gfp);
10598 return;
10599
10600 nla_put_failure:
10601 genlmsg_cancel(msg, hdr);
10602 nlmsg_free(msg);
10603}
10604EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10605
026331c4
JM		 10606static int nl80211_netlink_notify(struct notifier_block * nb,
10607 unsigned long state,
10608 void *_notify)
10609{
10610 struct netlink_notify *notify = _notify;
10611 struct cfg80211_registered_device *rdev;
10612 struct wireless_dev *wdev;
37c73b5f 10613 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 10614
10615 if (state != NETLINK_URELEASE)
10616 return NOTIFY_DONE;
10617
10618 rcu_read_lock();
10619
5e760230 10620 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 10621 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 10622 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 10623
10624 spin_lock_bh(&rdev->beacon_registrations_lock);
10625 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10626 list) {
10627 if (reg->nlportid == notify->portid) {
10628 list_del(&reg->list);
10629 kfree(reg);
10630 break;
10631 }
10632 }
10633 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 10634 }
026331c4
JM		 10635
10636 rcu_read_unlock();
10637
10638 return NOTIFY_DONE;
10639}
10640
10641static struct notifier_block nl80211_netlink_notifier = {
10642 .notifier_call = nl80211_netlink_notify,
10643};
10644
355199e0
JM		 10645void cfg80211_ft_event(struct net_device *netdev,
10646 struct cfg80211_ft_event_params *ft_event)
10647{
10648 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10649 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10650 struct sk_buff *msg;
10651 void *hdr;
355199e0
JM		 10652
10653 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10654
10655 if (!ft_event->target_ap)
10656 return;
10657
10658 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10659 if (!msg)
10660 return;
10661
10662 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10663 if (!hdr) {
10664 nlmsg_free(msg);
10665 return;
10666 }
10667
10668 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10669 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10670 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10671 if (ft_event->ies)
10672 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10673 if (ft_event->ric_ies)
10674 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10675 ft_event->ric_ies);
10676
9c90a9f6 10677 genlmsg_end(msg, hdr);
355199e0
JM		 10678
10679 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10680 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10681}
10682EXPORT_SYMBOL(cfg80211_ft_event);
10683
5de17984
AS		 10684void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
10685{
10686 struct cfg80211_registered_device *rdev;
10687 struct sk_buff *msg;
10688 void *hdr;
10689 u32 nlportid;
10690
10691 rdev = wiphy_to_dev(wdev->wiphy);
10692 if (!rdev->crit_proto_nlportid)
10693 return;
10694
10695 nlportid = rdev->crit_proto_nlportid;
10696 rdev->crit_proto_nlportid = 0;
10697
10698 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10699 if (!msg)
10700 return;
10701
10702 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
10703 if (!hdr)
10704 goto nla_put_failure;
10705
10706 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10707 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10708 goto nla_put_failure;
10709
10710 genlmsg_end(msg, hdr);
10711
10712 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10713 return;
10714
10715 nla_put_failure:
10716 if (hdr)
10717 genlmsg_cancel(msg, hdr);
10718 nlmsg_free(msg);
10719
10720}
10721EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
10722
55682965
JB		 10723/* initialisation/exit functions */
10724
10725int nl80211_init(void)
10726{
0d63cbb5 10727 int err;
55682965 10728
0d63cbb5
MM		 10729 err = genl_register_family_with_ops(&nl80211_fam,
10730 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 10731 if (err)
10732 return err;
10733
55682965
JB		 10734 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10735 if (err)
10736 goto err_out;
10737
2a519311
JB		 10738 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10739 if (err)
10740 goto err_out;
10741
73d54c9e
LR		 10742 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10743 if (err)
10744 goto err_out;
10745
6039f6d2
JM		 10746 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10747 if (err)
10748 goto err_out;
10749
aff89a9b
JB		 10750#ifdef CONFIG_NL80211_TESTMODE
10751 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10752 if (err)
10753 goto err_out;
10754#endif
10755
026331c4
JM		 10756 err = netlink_register_notifier(&nl80211_netlink_notifier);
10757 if (err)
10758 goto err_out;
10759
55682965
JB		 10760 return 0;
10761 err_out:
10762 genl_unregister_family(&nl80211_fam);
10763 return err;
10764}
10765
10766void nl80211_exit(void)
10767{
026331c4 10768 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 10769 genl_unregister_family(&nl80211_fam);
10770}
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