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mac80211: fix P2P-Device management frame RX
[deliverable/linux.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 = {
40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = "nl80211", /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
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
89a54e48 62 assert_cfg80211_lock();
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
83 mutex_lock(&rdev->devlist_mtx);
84 list_for_each_entry(wdev, &rdev->wdev_list, list) {
85 if (have_ifidx && wdev->netdev &&
86 wdev->netdev->ifindex == ifidx) {
87 result = wdev;
88 break;
89 }
90 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
91 result = wdev;
92 break;
93 }
94 }
95 mutex_unlock(&rdev->devlist_mtx);
96
97 if (result)
98 break;
99 }
100
101 if (result)
102 return result;
103 return ERR_PTR(-ENODEV);
55682965
JB		 104}
105
a9455408 106static struct cfg80211_registered_device *
878d9ec7 107__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 108{
7fee4778
JB		 109 struct cfg80211_registered_device *rdev = NULL, *tmp;
110 struct net_device *netdev;
a9455408
JB		 111
112 assert_cfg80211_lock();
113
878d9ec7 114 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 115 !attrs[NL80211_ATTR_IFINDEX] &&
116 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 117 return ERR_PTR(-EINVAL);
118
878d9ec7 119 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 120 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 121 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 122
89a54e48
JB		 123 if (attrs[NL80211_ATTR_WDEV]) {
124 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
125 struct wireless_dev *wdev;
126 bool found = false;
127
128 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
129 if (tmp) {
130 /* make sure wdev exists */
131 mutex_lock(&tmp->devlist_mtx);
132 list_for_each_entry(wdev, &tmp->wdev_list, list) {
133 if (wdev->identifier != (u32)wdev_id)
134 continue;
135 found = true;
136 break;
137 }
138 mutex_unlock(&tmp->devlist_mtx);
139
140 if (!found)
141 tmp = NULL;
142
143 if (rdev && tmp != rdev)
144 return ERR_PTR(-EINVAL);
145 rdev = tmp;
146 }
147 }
148
878d9ec7
JB		 149 if (attrs[NL80211_ATTR_IFINDEX]) {
150 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 151 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 152 if (netdev) {
153 if (netdev->ieee80211_ptr)
154 tmp = wiphy_to_dev(
155 netdev->ieee80211_ptr->wiphy);
156 else
157 tmp = NULL;
158
159 dev_put(netdev);
160
161 /* not wireless device -- return error */
162 if (!tmp)
163 return ERR_PTR(-EINVAL);
164
165 /* mismatch -- return error */
166 if (rdev && tmp != rdev)
167 return ERR_PTR(-EINVAL);
168
169 rdev = tmp;
a9455408 170 }
a9455408 171 }
a9455408 172
4f7eff10
JB		 173 if (!rdev)
174 return ERR_PTR(-ENODEV);
a9455408 175
4f7eff10
JB		 176 if (netns != wiphy_net(&rdev->wiphy))
177 return ERR_PTR(-ENODEV);
178
179 return rdev;
a9455408
JB		 180}
181
182/*
183 * This function returns a pointer to the driver
184 * that the genl_info item that is passed refers to.
185 * If successful, it returns non-NULL and also locks
186 * the driver's mutex!
187 *
188 * This means that you need to call cfg80211_unlock_rdev()
189 * before being allowed to acquire &cfg80211_mutex!
190 *
191 * This is necessary because we need to lock the global
192 * mutex to get an item off the list safely, and then
193 * we lock the rdev mutex so it doesn't go away under us.
194 *
195 * We don't want to keep cfg80211_mutex locked
196 * for all the time in order to allow requests on
197 * other interfaces to go through at the same time.
198 *
199 * The result of this can be a PTR_ERR and hence must
200 * be checked with IS_ERR() for errors.
201 */
202static struct cfg80211_registered_device *
4f7eff10 203cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408
JB		 204{
205 struct cfg80211_registered_device *rdev;
206
207 mutex_lock(&cfg80211_mutex);
878d9ec7 208 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 209
210 /* if it is not an error we grab the lock on
211 * it to assure it won't be going away while
212 * we operate on it */
213 if (!IS_ERR(rdev))
214 mutex_lock(&rdev->mtx);
215
216 mutex_unlock(&cfg80211_mutex);
217
218 return rdev;
219}
220
55682965 221/* policy for the attributes */
b54452b0 222static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 223 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
224 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 225 .len = 20-1 },
31888487 226 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 227
72bdcf34 228 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 229 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 230 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
231 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
232 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
233
b9a5f8ca
JM		 234 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
235 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
236 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
237 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 238 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 239
240 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
241 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
242 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 243
e007b857
EP		 244 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
245 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 246
b9454e83 247 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 248 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
249 .len = WLAN_MAX_KEY_LEN },
250 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
251 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
252 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 253 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 254 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 255
256 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
257 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
258 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
259 .len = IEEE80211_MAX_DATA_LEN },
260 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
261 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 262 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
263 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
264 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
265 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
266 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 267 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 268 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 269 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 270 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 271 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 272 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 273
b2e1b302
LR		 274 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
275 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
276
9f1ba906
JM		 277 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
278 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
279 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 280 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
281 .len = NL80211_MAX_SUPP_RATES },
50b12f59 282 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 283
24bdd9f4 284 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 285 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 286
6c739419 287 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 288
289 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
290 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
291 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 292 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
293 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 294
295 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
296 .len = IEEE80211_MAX_SSID_LEN },
297 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
298 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 299 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 300 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 301 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 302 [NL80211_ATTR_STA_FLAGS2] = {
303 .len = sizeof(struct nl80211_sta_flag_update),
304 },
3f77316c 305 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 306 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
307 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 308 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
309 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
310 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 311 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 312 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 313 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
314 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 315 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
316 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 317 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 318 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
319 .len = IEEE80211_MAX_DATA_LEN },
320 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 321 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 322 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 323 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 324 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 325 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
326 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 327 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 328 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
329 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 330 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 331 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 332 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 333 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 334 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 335 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 336 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 337 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 338 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 339 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
340 .len = IEEE80211_MAX_DATA_LEN },
341 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 343 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 344 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 345 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 346 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
347 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
348 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
349 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 351 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 352 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
353 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 354 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 355 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
356 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
357 .len = NL80211_HT_CAPABILITY_LEN
358 },
1d9d9213 359 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 360 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 361 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 362 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 363 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 364 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 365 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 366 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 367 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
368 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 369 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
370 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 371 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
372 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 373 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 374 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
375 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
376 .len = NL80211_VHT_CAPABILITY_LEN,
377 },
355199e0
JM		 378 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
379 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
380 .len = IEEE80211_MAX_DATA_LEN },
55682965
JB		 381};
382
e31b8213 383/* policy for the key attributes */
b54452b0 384static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 385 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 386 [NL80211_KEY_IDX] = { .type = NLA_U8 },
387 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 388 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 389 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
390 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 391 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 392 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
393};
394
395/* policy for the key default flags */
396static const struct nla_policy
397nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
398 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
399 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 400};
401
ff1b6e69
JB		 402/* policy for WoWLAN attributes */
403static const struct nla_policy
404nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
405 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
406 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
407 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
408 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 409 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
410 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
411 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
412 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 413 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
414};
415
416static const struct nla_policy
417nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
418 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
419 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
420 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
421 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
422 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
423 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
424 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
425 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
426 },
427 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
428 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
429 },
430 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
431 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
432 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 433};
434
e5497d76
JB		 435/* policy for GTK rekey offload attributes */
436static const struct nla_policy
437nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
438 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
439 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
440 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
441};
442
a1f1c21c
LC		 443static const struct nla_policy
444nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 445 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 446 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 447 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 448};
449
a043897a
HS		 450/* ifidx get helper */
451static int nl80211_get_ifidx(struct netlink_callback *cb)
452{
453 int res;
454
455 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
456 nl80211_fam.attrbuf, nl80211_fam.maxattr,
457 nl80211_policy);
458 if (res)
459 return res;
460
461 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
462 return -EINVAL;
463
464 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
465 if (!res)
466 return -EINVAL;
467 return res;
468}
469
67748893
JB		 470static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
471 struct netlink_callback *cb,
472 struct cfg80211_registered_device **rdev,
473 struct net_device **dev)
474{
475 int ifidx = cb->args[0];
476 int err;
477
478 if (!ifidx)
479 ifidx = nl80211_get_ifidx(cb);
480 if (ifidx < 0)
481 return ifidx;
482
483 cb->args[0] = ifidx;
484
485 rtnl_lock();
486
487 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
488 if (!*dev) {
489 err = -ENODEV;
490 goto out_rtnl;
491 }
492
493 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 494 if (IS_ERR(*rdev)) {
495 err = PTR_ERR(*rdev);
67748893
JB		 496 goto out_rtnl;
497 }
498
499 return 0;
500 out_rtnl:
501 rtnl_unlock();
502 return err;
503}
504
505static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
506{
507 cfg80211_unlock_rdev(rdev);
508 rtnl_unlock();
509}
510
f4a11bb0
JB		 511/* IE validation */
512static bool is_valid_ie_attr(const struct nlattr *attr)
513{
514 const u8 *pos;
515 int len;
516
517 if (!attr)
518 return true;
519
520 pos = nla_data(attr);
521 len = nla_len(attr);
522
523 while (len) {
524 u8 elemlen;
525
526 if (len < 2)
527 return false;
528 len -= 2;
529
530 elemlen = pos[1];
531 if (elemlen > len)
532 return false;
533
534 len -= elemlen;
535 pos += 2 + elemlen;
536 }
537
538 return true;
539}
540
55682965 541/* message building helper */
15e47304 542static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 543 int flags, u8 cmd)
544{
545 /* since there is no private header just add the generic one */
15e47304 546 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 547}
548
5dab3b8a 549static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 550 struct ieee80211_channel *chan,
551 bool large)
5dab3b8a 552{
9360ffd1
DM		 553 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
554 chan->center_freq))
555 goto nla_put_failure;
5dab3b8a 556
9360ffd1
DM		 557 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
558 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
559 goto nla_put_failure;
560 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
561 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
562 goto nla_put_failure;
563 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
564 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
565 goto nla_put_failure;
cdc89b97
JB		 566 if (chan->flags & IEEE80211_CHAN_RADAR) {
567 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
568 goto nla_put_failure;
569 if (large) {
570 u32 time;
571
572 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
573
574 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
575 chan->dfs_state))
576 goto nla_put_failure;
577 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
578 time))
579 goto nla_put_failure;
580 }
581 }
5dab3b8a 582
fe1abafd
JB		 583 if (large) {
584 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
585 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
586 goto nla_put_failure;
587 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
588 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
589 goto nla_put_failure;
590 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
591 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
592 goto nla_put_failure;
593 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
594 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
595 goto nla_put_failure;
596 }
597
9360ffd1
DM		 598 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
599 DBM_TO_MBM(chan->max_power)))
600 goto nla_put_failure;
5dab3b8a
LR		 601
602 return 0;
603
604 nla_put_failure:
605 return -ENOBUFS;
606}
607
55682965
JB		 608/* netlink command implementations */
609
b9454e83
JB		 610struct key_parse {
611 struct key_params p;
612 int idx;
e31b8213 613 int type;
b9454e83 614 bool def, defmgmt;
dbd2fd65 615 bool def_uni, def_multi;
b9454e83
JB		 616};
617
618static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
619{
620 struct nlattr *tb[NL80211_KEY_MAX + 1];
621 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
622 nl80211_key_policy);
623 if (err)
624 return err;
625
626 k->def = !!tb[NL80211_KEY_DEFAULT];
627 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
628
dbd2fd65
JB		 629 if (k->def) {
630 k->def_uni = true;
631 k->def_multi = true;
632 }
633 if (k->defmgmt)
634 k->def_multi = true;
635
b9454e83
JB		 636 if (tb[NL80211_KEY_IDX])
637 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
638
639 if (tb[NL80211_KEY_DATA]) {
640 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
641 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
642 }
643
644 if (tb[NL80211_KEY_SEQ]) {
645 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
646 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
647 }
648
649 if (tb[NL80211_KEY_CIPHER])
650 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
651
e31b8213
JB		 652 if (tb[NL80211_KEY_TYPE]) {
653 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
654 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
655 return -EINVAL;
656 }
657
dbd2fd65
JB		 658 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
659 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 660 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
661 tb[NL80211_KEY_DEFAULT_TYPES],
662 nl80211_key_default_policy);
dbd2fd65
JB		 663 if (err)
664 return err;
665
666 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
667 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
668 }
669
b9454e83
JB		 670 return 0;
671}
672
673static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
674{
675 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
676 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
677 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
678 }
679
680 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
681 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
682 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
683 }
684
685 if (info->attrs[NL80211_ATTR_KEY_IDX])
686 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
687
688 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
689 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
690
691 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
692 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
693
dbd2fd65
JB		 694 if (k->def) {
695 k->def_uni = true;
696 k->def_multi = true;
697 }
698 if (k->defmgmt)
699 k->def_multi = true;
700
e31b8213
JB		 701 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
702 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
703 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
704 return -EINVAL;
705 }
706
dbd2fd65
JB		 707 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
708 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
709 int err = nla_parse_nested(
710 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
711 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
712 nl80211_key_default_policy);
713 if (err)
714 return err;
715
716 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
717 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
718 }
719
b9454e83
JB		 720 return 0;
721}
722
723static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
724{
725 int err;
726
727 memset(k, 0, sizeof(*k));
728 k->idx = -1;
e31b8213 729 k->type = -1;
b9454e83
JB		 730
731 if (info->attrs[NL80211_ATTR_KEY])
732 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
733 else
734 err = nl80211_parse_key_old(info, k);
735
736 if (err)
737 return err;
738
739 if (k->def && k->defmgmt)
740 return -EINVAL;
741
dbd2fd65
JB		 742 if (k->defmgmt) {
743 if (k->def_uni || !k->def_multi)
744 return -EINVAL;
745 }
746
b9454e83
JB		 747 if (k->idx != -1) {
748 if (k->defmgmt) {
749 if (k->idx < 4 || k->idx > 5)
750 return -EINVAL;
751 } else if (k->def) {
752 if (k->idx < 0 || k->idx > 3)
753 return -EINVAL;
754 } else {
755 if (k->idx < 0 || k->idx > 5)
756 return -EINVAL;
757 }
758 }
759
760 return 0;
761}
762
fffd0934
JB		 763static struct cfg80211_cached_keys *
764nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 765 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 766{
767 struct key_parse parse;
768 struct nlattr *key;
769 struct cfg80211_cached_keys *result;
770 int rem, err, def = 0;
771
772 result = kzalloc(sizeof(*result), GFP_KERNEL);
773 if (!result)
774 return ERR_PTR(-ENOMEM);
775
776 result->def = -1;
777 result->defmgmt = -1;
778
779 nla_for_each_nested(key, keys, rem) {
780 memset(&parse, 0, sizeof(parse));
781 parse.idx = -1;
782
783 err = nl80211_parse_key_new(key, &parse);
784 if (err)
785 goto error;
786 err = -EINVAL;
787 if (!parse.p.key)
788 goto error;
789 if (parse.idx < 0 || parse.idx > 4)
790 goto error;
791 if (parse.def) {
792 if (def)
793 goto error;
794 def = 1;
795 result->def = parse.idx;
dbd2fd65
JB		 796 if (!parse.def_uni || !parse.def_multi)
797 goto error;
fffd0934
JB		 798 } else if (parse.defmgmt)
799 goto error;
800 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 801 parse.idx, false, NULL);
fffd0934
JB		 802 if (err)
803 goto error;
804 result->params[parse.idx].cipher = parse.p.cipher;
805 result->params[parse.idx].key_len = parse.p.key_len;
806 result->params[parse.idx].key = result->data[parse.idx];
807 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 808
809 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
810 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
811 if (no_ht)
812 *no_ht = true;
813 }
fffd0934
JB		 814 }
815
816 return result;
817 error:
818 kfree(result);
819 return ERR_PTR(err);
820}
821
822static int nl80211_key_allowed(struct wireless_dev *wdev)
823{
824 ASSERT_WDEV_LOCK(wdev);
825
fffd0934
JB		 826 switch (wdev->iftype) {
827 case NL80211_IFTYPE_AP:
828 case NL80211_IFTYPE_AP_VLAN:
074ac8df 829 case NL80211_IFTYPE_P2P_GO:
ff973af7 830 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 831 break;
832 case NL80211_IFTYPE_ADHOC:
833 if (!wdev->current_bss)
834 return -ENOLINK;
835 break;
836 case NL80211_IFTYPE_STATION:
074ac8df 837 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 838 if (wdev->sme_state != CFG80211_SME_CONNECTED)
839 return -ENOLINK;
840 break;
841 default:
842 return -EINVAL;
843 }
844
845 return 0;
846}
847
7527a782
JB		 848static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
849{
850 struct nlattr *nl_modes = nla_nest_start(msg, attr);
851 int i;
852
853 if (!nl_modes)
854 goto nla_put_failure;
855
856 i = 0;
857 while (ifmodes) {
9360ffd1
DM		 858 if ((ifmodes & 1) && nla_put_flag(msg, i))
859 goto nla_put_failure;
7527a782
JB		 860 ifmodes >>= 1;
861 i++;
862 }
863
864 nla_nest_end(msg, nl_modes);
865 return 0;
866
867nla_put_failure:
868 return -ENOBUFS;
869}
870
871static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 872 struct sk_buff *msg,
873 bool large)
7527a782
JB		 874{
875 struct nlattr *nl_combis;
876 int i, j;
877
878 nl_combis = nla_nest_start(msg,
879 NL80211_ATTR_INTERFACE_COMBINATIONS);
880 if (!nl_combis)
881 goto nla_put_failure;
882
883 for (i = 0; i < wiphy->n_iface_combinations; i++) {
884 const struct ieee80211_iface_combination *c;
885 struct nlattr *nl_combi, *nl_limits;
886
887 c = &wiphy->iface_combinations[i];
888
889 nl_combi = nla_nest_start(msg, i + 1);
890 if (!nl_combi)
891 goto nla_put_failure;
892
893 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
894 if (!nl_limits)
895 goto nla_put_failure;
896
897 for (j = 0; j < c->n_limits; j++) {
898 struct nlattr *nl_limit;
899
900 nl_limit = nla_nest_start(msg, j + 1);
901 if (!nl_limit)
902 goto nla_put_failure;
9360ffd1
DM		 903 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
904 c->limits[j].max))
905 goto nla_put_failure;
7527a782
JB		 906 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
907 c->limits[j].types))
908 goto nla_put_failure;
909 nla_nest_end(msg, nl_limit);
910 }
911
912 nla_nest_end(msg, nl_limits);
913
9360ffd1
DM		 914 if (c->beacon_int_infra_match &&
915 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
916 goto nla_put_failure;
917 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
918 c->num_different_channels) ||
919 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
920 c->max_interfaces))
921 goto nla_put_failure;
cdc89b97
JB		 922 if (large &&
923 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
924 c->radar_detect_widths))
925 goto nla_put_failure;
7527a782
JB		 926
927 nla_nest_end(msg, nl_combi);
928 }
929
930 nla_nest_end(msg, nl_combis);
931
932 return 0;
933nla_put_failure:
934 return -ENOBUFS;
935}
936
3713b4e3 937#ifdef CONFIG_PM
b56cf720
JB		 938static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
939 struct sk_buff *msg)
940{
941 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
942 struct nlattr *nl_tcp;
943
944 if (!tcp)
945 return 0;
946
947 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
948 if (!nl_tcp)
949 return -ENOBUFS;
950
951 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
952 tcp->data_payload_max))
953 return -ENOBUFS;
954
955 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
956 tcp->data_payload_max))
957 return -ENOBUFS;
958
959 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
960 return -ENOBUFS;
961
962 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
963 sizeof(*tcp->tok), tcp->tok))
964 return -ENOBUFS;
965
966 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
967 tcp->data_interval_max))
968 return -ENOBUFS;
969
970 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
971 tcp->wake_payload_max))
972 return -ENOBUFS;
973
974 nla_nest_end(msg, nl_tcp);
975 return 0;
976}
977
3713b4e3 978static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 979 struct cfg80211_registered_device *dev,
980 bool large)
55682965 981{
3713b4e3 982 struct nlattr *nl_wowlan;
55682965 983
3713b4e3
JB		 984 if (!dev->wiphy.wowlan.flags && !dev->wiphy.wowlan.n_patterns)
985 return 0;
55682965 986
3713b4e3
JB		 987 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
988 if (!nl_wowlan)
989 return -ENOBUFS;
9360ffd1 990
3713b4e3
JB		 991 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
992 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
993 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
994 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
995 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
996 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
997 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
998 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
999 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1000 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1001 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1002 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1003 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1004 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1005 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1006 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1007 return -ENOBUFS;
9360ffd1 1008
3713b4e3
JB		 1009 if (dev->wiphy.wowlan.n_patterns) {
1010 struct nl80211_wowlan_pattern_support pat = {
1011 .max_patterns = dev->wiphy.wowlan.n_patterns,
1012 .min_pattern_len = dev->wiphy.wowlan.pattern_min_len,
1013 .max_pattern_len = dev->wiphy.wowlan.pattern_max_len,
1014 .max_pkt_offset = dev->wiphy.wowlan.max_pkt_offset,
1015 };
9360ffd1 1016
3713b4e3
JB		 1017 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1018 sizeof(pat), &pat))
1019 return -ENOBUFS;
1020 }
9360ffd1 1021
b56cf720
JB		 1022 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1023 return -ENOBUFS;
1024
3713b4e3 1025 nla_nest_end(msg, nl_wowlan);
9360ffd1 1026
3713b4e3
JB		 1027 return 0;
1028}
1029#endif
9360ffd1 1030
3713b4e3
JB		 1031static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1032 struct ieee80211_supported_band *sband)
1033{
1034 struct nlattr *nl_rates, *nl_rate;
1035 struct ieee80211_rate *rate;
1036 int i;
87bbbe22 1037
3713b4e3
JB		 1038 /* add HT info */
1039 if (sband->ht_cap.ht_supported &&
1040 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1041 sizeof(sband->ht_cap.mcs),
1042 &sband->ht_cap.mcs) ||
1043 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1044 sband->ht_cap.cap) ||
1045 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1046 sband->ht_cap.ampdu_factor) ||
1047 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1048 sband->ht_cap.ampdu_density)))
1049 return -ENOBUFS;
afe0cbf8 1050
3713b4e3
JB		 1051 /* add VHT info */
1052 if (sband->vht_cap.vht_supported &&
1053 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1054 sizeof(sband->vht_cap.vht_mcs),
1055 &sband->vht_cap.vht_mcs) ||
1056 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1057 sband->vht_cap.cap)))
1058 return -ENOBUFS;
f59ac048 1059
3713b4e3
JB		 1060 /* add bitrates */
1061 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1062 if (!nl_rates)
1063 return -ENOBUFS;
ee688b00 1064
3713b4e3
JB		 1065 for (i = 0; i < sband->n_bitrates; i++) {
1066 nl_rate = nla_nest_start(msg, i);
1067 if (!nl_rate)
1068 return -ENOBUFS;
ee688b00 1069
3713b4e3
JB		 1070 rate = &sband->bitrates[i];
1071 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1072 rate->bitrate))
1073 return -ENOBUFS;
1074 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1075 nla_put_flag(msg,
1076 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1077 return -ENOBUFS;
ee688b00 1078
3713b4e3
JB		 1079 nla_nest_end(msg, nl_rate);
1080 }
d51626df 1081
3713b4e3 1082 nla_nest_end(msg, nl_rates);
bf0c111e 1083
3713b4e3
JB		 1084 return 0;
1085}
ee688b00 1086
3713b4e3
JB		 1087static int
1088nl80211_send_mgmt_stypes(struct sk_buff *msg,
1089 const struct ieee80211_txrx_stypes *mgmt_stypes)
1090{
1091 u16 stypes;
1092 struct nlattr *nl_ftypes, *nl_ifs;
1093 enum nl80211_iftype ift;
1094 int i;
ee688b00 1095
3713b4e3
JB		 1096 if (!mgmt_stypes)
1097 return 0;
5dab3b8a 1098
3713b4e3
JB		 1099 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1100 if (!nl_ifs)
1101 return -ENOBUFS;
e2f367f2 1102
3713b4e3
JB		 1103 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1104 nl_ftypes = nla_nest_start(msg, ift);
1105 if (!nl_ftypes)
1106 return -ENOBUFS;
1107 i = 0;
1108 stypes = mgmt_stypes[ift].tx;
1109 while (stypes) {
1110 if ((stypes & 1) &&
1111 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1112 (i << 4) | IEEE80211_FTYPE_MGMT))
1113 return -ENOBUFS;
1114 stypes >>= 1;
1115 i++;
ee688b00 1116 }
3713b4e3
JB		 1117 nla_nest_end(msg, nl_ftypes);
1118 }
ee688b00 1119
3713b4e3 1120 nla_nest_end(msg, nl_ifs);
ee688b00 1121
3713b4e3
JB		 1122 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1123 if (!nl_ifs)
1124 return -ENOBUFS;
ee688b00 1125
3713b4e3
JB		 1126 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1127 nl_ftypes = nla_nest_start(msg, ift);
1128 if (!nl_ftypes)
1129 return -ENOBUFS;
1130 i = 0;
1131 stypes = mgmt_stypes[ift].rx;
1132 while (stypes) {
1133 if ((stypes & 1) &&
1134 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1135 (i << 4) | IEEE80211_FTYPE_MGMT))
1136 return -ENOBUFS;
1137 stypes >>= 1;
1138 i++;
1139 }
1140 nla_nest_end(msg, nl_ftypes);
1141 }
1142 nla_nest_end(msg, nl_ifs);
ee688b00 1143
3713b4e3
JB		 1144 return 0;
1145}
ee688b00 1146
3713b4e3
JB		 1147static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1148 struct sk_buff *msg, u32 portid, u32 seq,
1149 int flags, bool split, long *split_start,
1150 long *band_start, long *chan_start)
1151{
1152 void *hdr;
1153 struct nlattr *nl_bands, *nl_band;
1154 struct nlattr *nl_freqs, *nl_freq;
1155 struct nlattr *nl_cmds;
1156 enum ieee80211_band band;
1157 struct ieee80211_channel *chan;
1158 int i;
1159 const struct ieee80211_txrx_stypes *mgmt_stypes =
1160 dev->wiphy.mgmt_stypes;
1161 long start = 0, start_chan = 0, start_band = 0;
fe1abafd 1162 u32 features;
ee688b00 1163
3713b4e3
JB		 1164 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1165 if (!hdr)
1166 return -ENOBUFS;
ee688b00 1167
3713b4e3
JB		 1168 /* allow always using the variables */
1169 if (!split) {
1170 split_start = &start;
1171 band_start = &start_band;
1172 chan_start = &start_chan;
ee688b00 1173 }
ee688b00 1174
3713b4e3
JB		 1175 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1176 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1177 wiphy_name(&dev->wiphy)) ||
1178 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1179 cfg80211_rdev_list_generation))
8fdc621d
JB		 1180 goto nla_put_failure;
1181
3713b4e3
JB		 1182 switch (*split_start) {
1183 case 0:
1184 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1185 dev->wiphy.retry_short) ||
1186 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1187 dev->wiphy.retry_long) ||
1188 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1189 dev->wiphy.frag_threshold) ||
1190 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1191 dev->wiphy.rts_threshold) ||
1192 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1193 dev->wiphy.coverage_class) ||
1194 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1195 dev->wiphy.max_scan_ssids) ||
1196 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1197 dev->wiphy.max_sched_scan_ssids) ||
1198 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1199 dev->wiphy.max_scan_ie_len) ||
1200 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1201 dev->wiphy.max_sched_scan_ie_len) ||
1202 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1203 dev->wiphy.max_match_sets))
9360ffd1 1204 goto nla_put_failure;
3713b4e3
JB		 1205
1206 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1207 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1208 goto nla_put_failure;
3713b4e3
JB		 1209 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1210 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1211 goto nla_put_failure;
1212 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1213 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1214 goto nla_put_failure;
1215 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1216 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1217 goto nla_put_failure;
1218 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1219 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1220 goto nla_put_failure;
1221 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1222 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1223 goto nla_put_failure;
8fdc621d 1224
3713b4e3
JB		 1225 (*split_start)++;
1226 if (split)
1227 break;
1228 case 1:
1229 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1230 sizeof(u32) * dev->wiphy.n_cipher_suites,
1231 dev->wiphy.cipher_suites))
1232 goto nla_put_failure;
4745fc09 1233
3713b4e3
JB		 1234 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1235 dev->wiphy.max_num_pmkids))
1236 goto nla_put_failure;
b23aa676 1237
3713b4e3
JB		 1238 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1239 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1240 goto nla_put_failure;
b23aa676 1241
3713b4e3
JB		 1242 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1243 dev->wiphy.available_antennas_tx) ||
1244 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1245 dev->wiphy.available_antennas_rx))
9360ffd1 1246 goto nla_put_failure;
b23aa676 1247
3713b4e3
JB		 1248 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1249 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1250 dev->wiphy.probe_resp_offload))
1251 goto nla_put_failure;
8fdc621d 1252
3713b4e3
JB		 1253 if ((dev->wiphy.available_antennas_tx ||
1254 dev->wiphy.available_antennas_rx) &&
1255 dev->ops->get_antenna) {
1256 u32 tx_ant = 0, rx_ant = 0;
1257 int res;
1258 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1259 if (!res) {
1260 if (nla_put_u32(msg,
1261 NL80211_ATTR_WIPHY_ANTENNA_TX,
1262 tx_ant) ||
1263 nla_put_u32(msg,
1264 NL80211_ATTR_WIPHY_ANTENNA_RX,
1265 rx_ant))
1266 goto nla_put_failure;
1267 }
1268 }
a293911d 1269
3713b4e3
JB		 1270 (*split_start)++;
1271 if (split)
1272 break;
1273 case 2:
1274 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1275 dev->wiphy.interface_modes))
1276 goto nla_put_failure;
1277 (*split_start)++;
1278 if (split)
1279 break;
1280 case 3:
1281 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1282 if (!nl_bands)
1283 goto nla_put_failure;
f7ca38df 1284
3713b4e3
JB		 1285 for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
1286 struct ieee80211_supported_band *sband;
2e161f78 1287
3713b4e3 1288 sband = dev->wiphy.bands[band];
2e161f78 1289
3713b4e3
JB		 1290 if (!sband)
1291 continue;
1292
1293 nl_band = nla_nest_start(msg, band);
1294 if (!nl_band)
2e161f78 1295 goto nla_put_failure;
3713b4e3
JB		 1296
1297 switch (*chan_start) {
1298 case 0:
1299 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1300 goto nla_put_failure;
3713b4e3
JB		 1301 (*chan_start)++;
1302 if (split)
1303 break;
1304 default:
1305 /* add frequencies */
1306 nl_freqs = nla_nest_start(
1307 msg, NL80211_BAND_ATTR_FREQS);
1308 if (!nl_freqs)
1309 goto nla_put_failure;
1310
1311 for (i = *chan_start - 1;
1312 i < sband->n_channels;
1313 i++) {
1314 nl_freq = nla_nest_start(msg, i);
1315 if (!nl_freq)
1316 goto nla_put_failure;
1317
1318 chan = &sband->channels[i];
1319
cdc89b97
JB		 1320 if (nl80211_msg_put_channel(msg, chan,
1321 split))
3713b4e3
JB		 1322 goto nla_put_failure;
1323
1324 nla_nest_end(msg, nl_freq);
1325 if (split)
1326 break;
1327 }
1328 if (i < sband->n_channels)
1329 *chan_start = i + 2;
1330 else
1331 *chan_start = 0;
1332 nla_nest_end(msg, nl_freqs);
1333 }
1334
1335 nla_nest_end(msg, nl_band);
1336
1337 if (split) {
1338 /* start again here */
1339 if (*chan_start)
1340 band--;
1341 break;
2e161f78 1342 }
2e161f78 1343 }
3713b4e3 1344 nla_nest_end(msg, nl_bands);
2e161f78 1345
3713b4e3
JB		 1346 if (band < IEEE80211_NUM_BANDS)
1347 *band_start = band + 1;
1348 else
1349 *band_start = 0;
74b70a4e 1350
3713b4e3
JB		 1351 /* if bands & channels are done, continue outside */
1352 if (*band_start == 0 && *chan_start == 0)
1353 (*split_start)++;
1354 if (split)
1355 break;
1356 case 4:
1357 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1358 if (!nl_cmds)
2e161f78
JB		 1359 goto nla_put_failure;
1360
3713b4e3
JB		 1361 i = 0;
1362#define CMD(op, n) \
1363 do { \
1364 if (dev->ops->op) { \
1365 i++; \
1366 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1367 goto nla_put_failure; \
1368 } \
1369 } while (0)
1370
1371 CMD(add_virtual_intf, NEW_INTERFACE);
1372 CMD(change_virtual_intf, SET_INTERFACE);
1373 CMD(add_key, NEW_KEY);
1374 CMD(start_ap, START_AP);
1375 CMD(add_station, NEW_STATION);
1376 CMD(add_mpath, NEW_MPATH);
1377 CMD(update_mesh_config, SET_MESH_CONFIG);
1378 CMD(change_bss, SET_BSS);
1379 CMD(auth, AUTHENTICATE);
1380 CMD(assoc, ASSOCIATE);
1381 CMD(deauth, DEAUTHENTICATE);
1382 CMD(disassoc, DISASSOCIATE);
1383 CMD(join_ibss, JOIN_IBSS);
1384 CMD(join_mesh, JOIN_MESH);
1385 CMD(set_pmksa, SET_PMKSA);
1386 CMD(del_pmksa, DEL_PMKSA);
1387 CMD(flush_pmksa, FLUSH_PMKSA);
1388 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1389 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1390 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1391 CMD(mgmt_tx, FRAME);
1392 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1393 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1394 i++;
1395 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1396 goto nla_put_failure;
2e161f78 1397 }
3713b4e3
JB		 1398 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1399 dev->ops->join_mesh) {
1400 i++;
1401 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1402 goto nla_put_failure;
1403 }
1404 CMD(set_wds_peer, SET_WDS_PEER);
1405 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1406 CMD(tdls_mgmt, TDLS_MGMT);
1407 CMD(tdls_oper, TDLS_OPER);
1408 }
1409 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1410 CMD(sched_scan_start, START_SCHED_SCAN);
1411 CMD(probe_client, PROBE_CLIENT);
1412 CMD(set_noack_map, SET_NOACK_MAP);
1413 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1414 i++;
1415 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1416 goto nla_put_failure;
1417 }
1418 CMD(start_p2p_device, START_P2P_DEVICE);
1419 CMD(set_mcast_rate, SET_MCAST_RATE);
2e161f78 1420
3713b4e3
JB		 1421#ifdef CONFIG_NL80211_TESTMODE
1422 CMD(testmode_cmd, TESTMODE);
1423#endif
ff1b6e69 1424
3713b4e3 1425#undef CMD
ff1b6e69 1426
3713b4e3
JB		 1427 if (dev->ops->connect || dev->ops->auth) {
1428 i++;
1429 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1430 goto nla_put_failure;
ff1b6e69
JB		 1431 }
1432
3713b4e3
JB		 1433 if (dev->ops->disconnect || dev->ops->deauth) {
1434 i++;
1435 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1436 goto nla_put_failure;
1437 }
1438
1439 nla_nest_end(msg, nl_cmds);
1440 (*split_start)++;
1441 if (split)
1442 break;
1443 case 5:
1444 if (dev->ops->remain_on_channel &&
1445 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1446 nla_put_u32(msg,
1447 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1448 dev->wiphy.max_remain_on_channel_duration))
1449 goto nla_put_failure;
1450
1451 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1452 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1453 goto nla_put_failure;
1454
1455 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1456 goto nla_put_failure;
1457 (*split_start)++;
1458 if (split)
1459 break;
1460 case 6:
1461#ifdef CONFIG_PM
b56cf720 1462 if (nl80211_send_wowlan(msg, dev, split))
3713b4e3
JB		 1463 goto nla_put_failure;
1464 (*split_start)++;
1465 if (split)
1466 break;
1467#else
1468 (*split_start)++;
dfb89c56 1469#endif
3713b4e3
JB		 1470 case 7:
1471 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1472 dev->wiphy.software_iftypes))
1473 goto nla_put_failure;
ff1b6e69 1474
cdc89b97 1475 if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
3713b4e3 1476 goto nla_put_failure;
7527a782 1477
3713b4e3
JB		 1478 (*split_start)++;
1479 if (split)
1480 break;
1481 case 8:
1482 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1483 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1484 dev->wiphy.ap_sme_capa))
1485 goto nla_put_failure;
7527a782 1486
fe1abafd
JB		 1487 features = dev->wiphy.features;
1488 /*
1489 * We can only add the per-channel limit information if the
1490 * dump is split, otherwise it makes it too big. Therefore
1491 * only advertise it in that case.
1492 */
1493 if (split)
1494 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1495 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1496 goto nla_put_failure;
562a7480 1497
3713b4e3
JB		 1498 if (dev->wiphy.ht_capa_mod_mask &&
1499 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1500 sizeof(*dev->wiphy.ht_capa_mod_mask),
1501 dev->wiphy.ht_capa_mod_mask))
1502 goto nla_put_failure;
1f074bd8 1503
3713b4e3
JB		 1504 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1505 dev->wiphy.max_acl_mac_addrs &&
1506 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1507 dev->wiphy.max_acl_mac_addrs))
1508 goto nla_put_failure;
7e7c8926 1509
3713b4e3
JB		 1510 /*
1511 * Any information below this point is only available to
1512 * applications that can deal with it being split. This
1513 * helps ensure that newly added capabilities don't break
1514 * older tools by overrunning their buffers.
1515 *
1516 * We still increment split_start so that in the split
1517 * case we'll continue with more data in the next round,
1518 * but break unconditionally so unsplit data stops here.
1519 */
1520 (*split_start)++;
1521 break;
1522 case 9:
fe1abafd
JB		 1523 if (dev->wiphy.extended_capabilities &&
1524 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1525 dev->wiphy.extended_capabilities_len,
1526 dev->wiphy.extended_capabilities) ||
1527 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1528 dev->wiphy.extended_capabilities_len,
1529 dev->wiphy.extended_capabilities_mask)))
1530 goto nla_put_failure;
a50df0c4 1531
ee2aca34
JB		 1532 if (dev->wiphy.vht_capa_mod_mask &&
1533 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1534 sizeof(*dev->wiphy.vht_capa_mod_mask),
1535 dev->wiphy.vht_capa_mod_mask))
1536 goto nla_put_failure;
1537
3713b4e3
JB		 1538 /* done */
1539 *split_start = 0;
1540 break;
1541 }
55682965
JB		 1542 return genlmsg_end(msg, hdr);
1543
1544 nla_put_failure:
bc3ed28c
TG		 1545 genlmsg_cancel(msg, hdr);
1546 return -EMSGSIZE;
55682965
JB		 1547}
1548
1549static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1550{
645e77de 1551 int idx = 0, ret;
55682965
JB		 1552 int start = cb->args[0];
1553 struct cfg80211_registered_device *dev;
3713b4e3
JB		 1554 s64 filter_wiphy = -1;
1555 bool split = false;
1556 struct nlattr **tb = nl80211_fam.attrbuf;
1557 int res;
55682965 1558
a1794390 1559 mutex_lock(&cfg80211_mutex);
3713b4e3
JB		 1560 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1561 tb, nl80211_fam.maxattr, nl80211_policy);
1562 if (res == 0) {
1563 split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1564 if (tb[NL80211_ATTR_WIPHY])
1565 filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1566 if (tb[NL80211_ATTR_WDEV])
1567 filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1568 if (tb[NL80211_ATTR_IFINDEX]) {
1569 struct net_device *netdev;
1570 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1571
1572 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1573 if (!netdev) {
1574 mutex_unlock(&cfg80211_mutex);
1575 return -ENODEV;
1576 }
1577 if (netdev->ieee80211_ptr) {
1578 dev = wiphy_to_dev(
1579 netdev->ieee80211_ptr->wiphy);
1580 filter_wiphy = dev->wiphy_idx;
1581 }
1582 dev_put(netdev);
1583 }
1584 }
1585
79c97e97 1586 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1587 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1588 continue;
b4637271 1589 if (++idx <= start)
55682965 1590 continue;
3713b4e3
JB		 1591 if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
1592 continue;
1593 /* attempt to fit multiple wiphy data chunks into the skb */
1594 do {
1595 ret = nl80211_send_wiphy(dev, skb,
1596 NETLINK_CB(cb->skb).portid,
1597 cb->nlh->nlmsg_seq,
1598 NLM_F_MULTI,
1599 split, &cb->args[1],
1600 &cb->args[2],
1601 &cb->args[3]);
1602 if (ret < 0) {
1603 /*
1604 * If sending the wiphy data didn't fit (ENOBUFS
1605 * or EMSGSIZE returned), this SKB is still
1606 * empty (so it's not too big because another
1607 * wiphy dataset is already in the skb) and
1608 * we've not tried to adjust the dump allocation
1609 * yet ... then adjust the alloc size to be
1610 * bigger, and return 1 but with the empty skb.
1611 * This results in an empty message being RX'ed
1612 * in userspace, but that is ignored.
1613 *
1614 * We can then retry with the larger buffer.
1615 */
1616 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1617 !skb->len &&
1618 cb->min_dump_alloc < 4096) {
1619 cb->min_dump_alloc = 4096;
1620 mutex_unlock(&cfg80211_mutex);
1621 return 1;
1622 }
1623 idx--;
1624 break;
645e77de 1625 }
3713b4e3
JB		 1626 } while (cb->args[1] > 0);
1627 break;
55682965 1628 }
a1794390 1629 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1630
1631 cb->args[0] = idx;
1632
1633 return skb->len;
1634}
1635
1636static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1637{
1638 struct sk_buff *msg;
4c476991 1639 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1640
645e77de 1641 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1642 if (!msg)
4c476991 1643 return -ENOMEM;
55682965 1644
3713b4e3
JB		 1645 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1646 false, NULL, NULL, NULL) < 0) {
4c476991
JB		 1647 nlmsg_free(msg);
1648 return -ENOBUFS;
1649 }
55682965 1650
134e6375 1651 return genlmsg_reply(msg, info);
55682965
JB		 1652}
1653
31888487
JM		 1654static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1655 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1656 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1657 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1658 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1659 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1660};
1661
1662static int parse_txq_params(struct nlattr *tb[],
1663 struct ieee80211_txq_params *txq_params)
1664{
a3304b0a 1665 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1666 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1667 !tb[NL80211_TXQ_ATTR_AIFS])
1668 return -EINVAL;
1669
a3304b0a 1670 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1671 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1672 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1673 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1674 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1675
a3304b0a
JB		 1676 if (txq_params->ac >= NL80211_NUM_ACS)
1677 return -EINVAL;
1678
31888487
JM		 1679 return 0;
1680}
1681
f444de05
JB		 1682static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1683{
1684 /*
cc1d2806
JB		 1685 * You can only set the channel explicitly for WDS interfaces,
1686 * all others have their channel managed via their respective
1687 * "establish a connection" command (connect, join, ...)
1688 *
1689 * For AP/GO and mesh mode, the channel can be set with the
1690 * channel userspace API, but is only stored and passed to the
1691 * low-level driver when the AP starts or the mesh is joined.
1692 * This is for backward compatibility, userspace can also give
1693 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1694 *
1695 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1696 * whatever else is going on, so they have their own special
1697 * operation to set the monitor channel if possible.
f444de05
JB		 1698 */
1699 return !wdev ||
1700 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1701 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1702 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1703 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1704}
1705
683b6d3b
JB		 1706static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1707 struct genl_info *info,
1708 struct cfg80211_chan_def *chandef)
1709{
dbeca2ea 1710 u32 control_freq;
683b6d3b
JB		 1711
1712 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1713 return -EINVAL;
1714
1715 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1716
1717 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1718 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1719 chandef->center_freq1 = control_freq;
1720 chandef->center_freq2 = 0;
683b6d3b
JB		 1721
1722 /* Primary channel not allowed */
1723 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1724 return -EINVAL;
1725
3d9d1d66
JB		 1726 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1727 enum nl80211_channel_type chantype;
1728
1729 chantype = nla_get_u32(
1730 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1731
1732 switch (chantype) {
1733 case NL80211_CHAN_NO_HT:
1734 case NL80211_CHAN_HT20:
1735 case NL80211_CHAN_HT40PLUS:
1736 case NL80211_CHAN_HT40MINUS:
1737 cfg80211_chandef_create(chandef, chandef->chan,
1738 chantype);
1739 break;
1740 default:
1741 return -EINVAL;
1742 }
1743 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1744 chandef->width =
1745 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1746 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1747 chandef->center_freq1 =
1748 nla_get_u32(
1749 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1750 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1751 chandef->center_freq2 =
1752 nla_get_u32(
1753 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1754 }
1755
9f5e8f6e 1756 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1757 return -EINVAL;
1758
9f5e8f6e
JB		 1759 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1760 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1761 return -EINVAL;
1762
683b6d3b
JB		 1763 return 0;
1764}
1765
f444de05
JB		 1766static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1767 struct wireless_dev *wdev,
1768 struct genl_info *info)
1769{
683b6d3b 1770 struct cfg80211_chan_def chandef;
f444de05 1771 int result;
e8c9bd5b
JB		 1772 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1773
1774 if (wdev)
1775 iftype = wdev->iftype;
f444de05 1776
f444de05
JB		 1777 if (!nl80211_can_set_dev_channel(wdev))
1778 return -EOPNOTSUPP;
1779
683b6d3b
JB		 1780 result = nl80211_parse_chandef(rdev, info, &chandef);
1781 if (result)
1782 return result;
f444de05
JB		 1783
1784 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1785 switch (iftype) {
aa430da4
JB		 1786 case NL80211_IFTYPE_AP:
1787 case NL80211_IFTYPE_P2P_GO:
1788 if (wdev->beacon_interval) {
1789 result = -EBUSY;
1790 break;
1791 }
683b6d3b 1792 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1793 result = -EINVAL;
1794 break;
1795 }
683b6d3b 1796 wdev->preset_chandef = chandef;
aa430da4
JB		 1797 result = 0;
1798 break;
cc1d2806 1799 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1800 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1801 break;
e8c9bd5b 1802 case NL80211_IFTYPE_MONITOR:
683b6d3b 1803 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1804 break;
aa430da4 1805 default:
e8c9bd5b 1806 result = -EINVAL;
f444de05
JB		 1807 }
1808 mutex_unlock(&rdev->devlist_mtx);
1809
1810 return result;
1811}
1812
1813static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1814{
4c476991
JB		 1815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1816 struct net_device *netdev = info->user_ptr[1];
f444de05 1817
4c476991 1818 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1819}
1820
e8347eba
BJ		 1821static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1822{
43b19952
JB		 1823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1824 struct net_device *dev = info->user_ptr[1];
1825 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1826 const u8 *bssid;
e8347eba
BJ		 1827
1828 if (!info->attrs[NL80211_ATTR_MAC])
1829 return -EINVAL;
1830
43b19952
JB		 1831 if (netif_running(dev))
1832 return -EBUSY;
e8347eba 1833
43b19952
JB		 1834 if (!rdev->ops->set_wds_peer)
1835 return -EOPNOTSUPP;
e8347eba 1836
43b19952
JB		 1837 if (wdev->iftype != NL80211_IFTYPE_WDS)
1838 return -EOPNOTSUPP;
e8347eba
BJ		 1839
1840 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1841 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1842}
1843
1844
55682965
JB		 1845static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1846{
1847 struct cfg80211_registered_device *rdev;
f444de05
JB		 1848 struct net_device *netdev = NULL;
1849 struct wireless_dev *wdev;
a1e567c8 1850 int result = 0, rem_txq_params = 0;
31888487 1851 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1852 u32 changed;
1853 u8 retry_short = 0, retry_long = 0;
1854 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1855 u8 coverage_class = 0;
55682965 1856
f444de05
JB		 1857 /*
1858 * Try to find the wiphy and netdev. Normally this
1859 * function shouldn't need the netdev, but this is
1860 * done for backward compatibility -- previously
1861 * setting the channel was done per wiphy, but now
1862 * it is per netdev. Previous userland like hostapd
1863 * also passed a netdev to set_wiphy, so that it is
1864 * possible to let that go to the right netdev!
1865 */
4bbf4d56
JB		 1866 mutex_lock(&cfg80211_mutex);
1867
f444de05
JB		 1868 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1869 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1870
1871 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1872 if (netdev && netdev->ieee80211_ptr) {
1873 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1874 mutex_lock(&rdev->mtx);
1875 } else
1876 netdev = NULL;
4bbf4d56
JB		 1877 }
1878
f444de05 1879 if (!netdev) {
878d9ec7
JB		 1880 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1881 info->attrs);
f444de05
JB		 1882 if (IS_ERR(rdev)) {
1883 mutex_unlock(&cfg80211_mutex);
4c476991 1884 return PTR_ERR(rdev);
f444de05
JB		 1885 }
1886 wdev = NULL;
1887 netdev = NULL;
1888 result = 0;
1889
1890 mutex_lock(&rdev->mtx);
71fe96bf 1891 } else
f444de05 1892 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1893
1894 /*
1895 * end workaround code, by now the rdev is available
1896 * and locked, and wdev may or may not be NULL.
1897 */
4bbf4d56
JB		 1898
1899 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1900 result = cfg80211_dev_rename(
1901 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1902
1903 mutex_unlock(&cfg80211_mutex);
1904
1905 if (result)
1906 goto bad_res;
31888487
JM		 1907
1908 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1909 struct ieee80211_txq_params txq_params;
1910 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1911
1912 if (!rdev->ops->set_txq_params) {
1913 result = -EOPNOTSUPP;
1914 goto bad_res;
1915 }
1916
f70f01c2
EP		 1917 if (!netdev) {
1918 result = -EINVAL;
1919 goto bad_res;
1920 }
1921
133a3ff2
JB		 1922 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1923 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1924 result = -EINVAL;
1925 goto bad_res;
1926 }
1927
2b5f8b0b
JB		 1928 if (!netif_running(netdev)) {
1929 result = -ENETDOWN;
1930 goto bad_res;
1931 }
1932
31888487
JM		 1933 nla_for_each_nested(nl_txq_params,
1934 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1935 rem_txq_params) {
1936 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1937 nla_data(nl_txq_params),
1938 nla_len(nl_txq_params),
1939 txq_params_policy);
1940 result = parse_txq_params(tb, &txq_params);
1941 if (result)
1942 goto bad_res;
1943
e35e4d28
HG		 1944 result = rdev_set_txq_params(rdev, netdev,
1945 &txq_params);
31888487
JM		 1946 if (result)
1947 goto bad_res;
1948 }
1949 }
55682965 1950
72bdcf34 1951 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1952 result = __nl80211_set_channel(rdev,
1953 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1954 info);
72bdcf34
JM		 1955 if (result)
1956 goto bad_res;
1957 }
1958
98d2ff8b 1959 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1960 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1961 enum nl80211_tx_power_setting type;
1962 int idx, mbm = 0;
1963
c8442118
JB		 1964 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1965 txp_wdev = NULL;
1966
98d2ff8b 1967 if (!rdev->ops->set_tx_power) {
60ea385f 1968 result = -EOPNOTSUPP;
98d2ff8b
JO		 1969 goto bad_res;
1970 }
1971
1972 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1973 type = nla_get_u32(info->attrs[idx]);
1974
1975 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1976 (type != NL80211_TX_POWER_AUTOMATIC)) {
1977 result = -EINVAL;
1978 goto bad_res;
1979 }
1980
1981 if (type != NL80211_TX_POWER_AUTOMATIC) {
1982 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1983 mbm = nla_get_u32(info->attrs[idx]);
1984 }
1985
c8442118 1986 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1987 if (result)
1988 goto bad_res;
1989 }
1990
afe0cbf8
BR		 1991 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1992 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1993 u32 tx_ant, rx_ant;
7f531e03
BR		 1994 if ((!rdev->wiphy.available_antennas_tx &&
1995 !rdev->wiphy.available_antennas_rx) ||
1996 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1997 result = -EOPNOTSUPP;
1998 goto bad_res;
1999 }
2000
2001 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2002 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2003
a7ffac95 2004 /* reject antenna configurations which don't match the
7f531e03
BR		 2005 * available antenna masks, except for the "all" mask */
2006 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2007 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 2008 result = -EINVAL;
2009 goto bad_res;
2010 }
2011
7f531e03
BR		 2012 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2013 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2014
e35e4d28 2015 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 2016 if (result)
2017 goto bad_res;
2018 }
2019
b9a5f8ca
JM		 2020 changed = 0;
2021
2022 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2023 retry_short = nla_get_u8(
2024 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2025 if (retry_short == 0) {
2026 result = -EINVAL;
2027 goto bad_res;
2028 }
2029 changed |= WIPHY_PARAM_RETRY_SHORT;
2030 }
2031
2032 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2033 retry_long = nla_get_u8(
2034 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2035 if (retry_long == 0) {
2036 result = -EINVAL;
2037 goto bad_res;
2038 }
2039 changed |= WIPHY_PARAM_RETRY_LONG;
2040 }
2041
2042 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2043 frag_threshold = nla_get_u32(
2044 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2045 if (frag_threshold < 256) {
2046 result = -EINVAL;
2047 goto bad_res;
2048 }
2049 if (frag_threshold != (u32) -1) {
2050 /*
2051 * Fragments (apart from the last one) are required to
2052 * have even length. Make the fragmentation code
2053 * simpler by stripping LSB should someone try to use
2054 * odd threshold value.
2055 */
2056 frag_threshold &= ~0x1;
2057 }
2058 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2059 }
2060
2061 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2062 rts_threshold = nla_get_u32(
2063 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2064 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2065 }
2066
81077e82
LT		 2067 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2068 coverage_class = nla_get_u8(
2069 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2070 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2071 }
2072
b9a5f8ca
JM		 2073 if (changed) {
2074 u8 old_retry_short, old_retry_long;
2075 u32 old_frag_threshold, old_rts_threshold;
81077e82 2076 u8 old_coverage_class;
b9a5f8ca
JM		 2077
2078 if (!rdev->ops->set_wiphy_params) {
2079 result = -EOPNOTSUPP;
2080 goto bad_res;
2081 }
2082
2083 old_retry_short = rdev->wiphy.retry_short;
2084 old_retry_long = rdev->wiphy.retry_long;
2085 old_frag_threshold = rdev->wiphy.frag_threshold;
2086 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2087 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2088
2089 if (changed & WIPHY_PARAM_RETRY_SHORT)
2090 rdev->wiphy.retry_short = retry_short;
2091 if (changed & WIPHY_PARAM_RETRY_LONG)
2092 rdev->wiphy.retry_long = retry_long;
2093 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2094 rdev->wiphy.frag_threshold = frag_threshold;
2095 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2096 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2097 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2098 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2099
e35e4d28 2100 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2101 if (result) {
2102 rdev->wiphy.retry_short = old_retry_short;
2103 rdev->wiphy.retry_long = old_retry_long;
2104 rdev->wiphy.frag_threshold = old_frag_threshold;
2105 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2106 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2107 }
2108 }
72bdcf34 2109
306d6112 2110 bad_res:
4bbf4d56 2111 mutex_unlock(&rdev->mtx);
f444de05
JB		 2112 if (netdev)
2113 dev_put(netdev);
55682965
JB		 2114 return result;
2115}
2116
71bbc994
JB		 2117static inline u64 wdev_id(struct wireless_dev *wdev)
2118{
2119 return (u64)wdev->identifier |
2120 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2121}
55682965 2122
683b6d3b
JB		 2123static int nl80211_send_chandef(struct sk_buff *msg,
2124 struct cfg80211_chan_def *chandef)
2125{
9f5e8f6e 2126 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2127
683b6d3b
JB		 2128 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2129 chandef->chan->center_freq))
2130 return -ENOBUFS;
3d9d1d66
JB		 2131 switch (chandef->width) {
2132 case NL80211_CHAN_WIDTH_20_NOHT:
2133 case NL80211_CHAN_WIDTH_20:
2134 case NL80211_CHAN_WIDTH_40:
2135 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2136 cfg80211_get_chandef_type(chandef)))
2137 return -ENOBUFS;
2138 break;
2139 default:
2140 break;
2141 }
2142 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2143 return -ENOBUFS;
2144 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2145 return -ENOBUFS;
2146 if (chandef->center_freq2 &&
2147 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2148 return -ENOBUFS;
2149 return 0;
2150}
2151
15e47304 2152static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2153 struct cfg80211_registered_device *rdev,
72fb2abc 2154 struct wireless_dev *wdev)
55682965 2155{
72fb2abc 2156 struct net_device *dev = wdev->netdev;
55682965
JB		 2157 void *hdr;
2158
15e47304 2159 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2160 if (!hdr)
2161 return -1;
2162
72fb2abc
JB		 2163 if (dev &&
2164 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2165 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2166 goto nla_put_failure;
2167
2168 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2169 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2170 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2171 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2172 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2173 rdev->devlist_generation ^
2174 (cfg80211_rdev_list_generation << 2)))
2175 goto nla_put_failure;
f5ea9120 2176
5b7ccaf3 2177 if (rdev->ops->get_channel) {
683b6d3b
JB		 2178 int ret;
2179 struct cfg80211_chan_def chandef;
2180
2181 ret = rdev_get_channel(rdev, wdev, &chandef);
2182 if (ret == 0) {
2183 if (nl80211_send_chandef(msg, &chandef))
2184 goto nla_put_failure;
2185 }
d91df0e3
PF		 2186 }
2187
b84e7a05
AQ		 2188 if (wdev->ssid_len) {
2189 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2190 goto nla_put_failure;
2191 }
2192
55682965
JB		 2193 return genlmsg_end(msg, hdr);
2194
2195 nla_put_failure:
bc3ed28c
TG		 2196 genlmsg_cancel(msg, hdr);
2197 return -EMSGSIZE;
55682965
JB		 2198}
2199
2200static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2201{
2202 int wp_idx = 0;
2203 int if_idx = 0;
2204 int wp_start = cb->args[0];
2205 int if_start = cb->args[1];
f5ea9120 2206 struct cfg80211_registered_device *rdev;
55682965
JB		 2207 struct wireless_dev *wdev;
2208
a1794390 2209 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 2210 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2211 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2212 continue;
bba95fef
JB		 2213 if (wp_idx < wp_start) {
2214 wp_idx++;
55682965 2215 continue;
bba95fef 2216 }
55682965
JB		 2217 if_idx = 0;
2218
f5ea9120 2219 mutex_lock(&rdev->devlist_mtx);
89a54e48 2220 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2221 if (if_idx < if_start) {
2222 if_idx++;
55682965 2223 continue;
bba95fef 2224 }
15e47304 2225 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2226 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2227 rdev, wdev) < 0) {
f5ea9120 2228 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 2229 goto out;
2230 }
2231 if_idx++;
55682965 2232 }
f5ea9120 2233 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 2234
2235 wp_idx++;
55682965 2236 }
bba95fef 2237 out:
a1794390 2238 mutex_unlock(&cfg80211_mutex);
55682965
JB		 2239
2240 cb->args[0] = wp_idx;
2241 cb->args[1] = if_idx;
2242
2243 return skb->len;
2244}
2245
2246static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2247{
2248 struct sk_buff *msg;
4c476991 2249 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2250 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2251
fd2120ca 2252 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2253 if (!msg)
4c476991 2254 return -ENOMEM;
55682965 2255
15e47304 2256 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2257 dev, wdev) < 0) {
4c476991
JB		 2258 nlmsg_free(msg);
2259 return -ENOBUFS;
2260 }
55682965 2261
134e6375 2262 return genlmsg_reply(msg, info);
55682965
JB		 2263}
2264
66f7ac50
MW		 2265static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2266 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2267 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2268 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2269 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2270 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2271};
2272
2273static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2274{
2275 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2276 int flag;
2277
2278 *mntrflags = 0;
2279
2280 if (!nla)
2281 return -EINVAL;
2282
2283 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2284 nla, mntr_flags_policy))
2285 return -EINVAL;
2286
2287 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2288 if (flags[flag])
2289 *mntrflags |= (1<<flag);
2290
2291 return 0;
2292}
2293
9bc383de 2294static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2295 struct net_device *netdev, u8 use_4addr,
2296 enum nl80211_iftype iftype)
9bc383de 2297{
ad4bb6f8 2298 if (!use_4addr) {
f350a0a8 2299 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2300 return -EBUSY;
9bc383de 2301 return 0;
ad4bb6f8 2302 }
9bc383de
JB		 2303
2304 switch (iftype) {
2305 case NL80211_IFTYPE_AP_VLAN:
2306 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2307 return 0;
2308 break;
2309 case NL80211_IFTYPE_STATION:
2310 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2311 return 0;
2312 break;
2313 default:
2314 break;
2315 }
2316
2317 return -EOPNOTSUPP;
2318}
2319
55682965
JB		 2320static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2321{
4c476991 2322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2323 struct vif_params params;
e36d56b6 2324 int err;
04a773ad 2325 enum nl80211_iftype otype, ntype;
4c476991 2326 struct net_device *dev = info->user_ptr[1];
92ffe055 2327 u32 _flags, *flags = NULL;
ac7f9cfa 2328 bool change = false;
55682965 2329
2ec600d6
LCC		 2330 memset(&params, 0, sizeof(params));
2331
04a773ad 2332 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2333
723b038d 2334 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2335 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2336 if (otype != ntype)
ac7f9cfa 2337 change = true;
4c476991
JB		 2338 if (ntype > NL80211_IFTYPE_MAX)
2339 return -EINVAL;
723b038d
JB		 2340 }
2341
92ffe055 2342 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2343 struct wireless_dev *wdev = dev->ieee80211_ptr;
2344
4c476991
JB		 2345 if (ntype != NL80211_IFTYPE_MESH_POINT)
2346 return -EINVAL;
29cbe68c
JB		 2347 if (netif_running(dev))
2348 return -EBUSY;
2349
2350 wdev_lock(wdev);
2351 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2352 IEEE80211_MAX_MESH_ID_LEN);
2353 wdev->mesh_id_up_len =
2354 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2355 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2356 wdev->mesh_id_up_len);
2357 wdev_unlock(wdev);
2ec600d6
LCC		 2358 }
2359
8b787643
FF		 2360 if (info->attrs[NL80211_ATTR_4ADDR]) {
2361 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2362 change = true;
ad4bb6f8 2363 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2364 if (err)
4c476991 2365 return err;
8b787643
FF		 2366 } else {
2367 params.use_4addr = -1;
2368 }
2369
92ffe055 2370 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2371 if (ntype != NL80211_IFTYPE_MONITOR)
2372 return -EINVAL;
92ffe055
JB		 2373 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2374 &_flags);
ac7f9cfa 2375 if (err)
4c476991 2376 return err;
ac7f9cfa
JB		 2377
2378 flags = &_flags;
2379 change = true;
92ffe055 2380 }
3b85875a 2381
ac7f9cfa 2382 if (change)
3d54d255 2383 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2384 else
2385 err = 0;
60719ffd 2386
9bc383de
JB		 2387 if (!err && params.use_4addr != -1)
2388 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2389
55682965
JB		 2390 return err;
2391}
2392
2393static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2394{
4c476991 2395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2396 struct vif_params params;
84efbb84 2397 struct wireless_dev *wdev;
1c90f9d4 2398 struct sk_buff *msg;
55682965
JB		 2399 int err;
2400 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2401 u32 flags;
55682965 2402
2ec600d6
LCC		 2403 memset(&params, 0, sizeof(params));
2404
55682965
JB		 2405 if (!info->attrs[NL80211_ATTR_IFNAME])
2406 return -EINVAL;
2407
2408 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2409 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2410 if (type > NL80211_IFTYPE_MAX)
2411 return -EINVAL;
2412 }
2413
79c97e97 2414 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2415 !(rdev->wiphy.interface_modes & (1 << type)))
2416 return -EOPNOTSUPP;
55682965 2417
1c18f145
AS		 2418 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2419 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2420 ETH_ALEN);
2421 if (!is_valid_ether_addr(params.macaddr))
2422 return -EADDRNOTAVAIL;
2423 }
2424
9bc383de 2425 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2426 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2427 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2428 if (err)
4c476991 2429 return err;
9bc383de 2430 }
8b787643 2431
1c90f9d4
JB		 2432 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2433 if (!msg)
2434 return -ENOMEM;
2435
66f7ac50
MW		 2436 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2437 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2438 &flags);
e35e4d28
HG		 2439 wdev = rdev_add_virtual_intf(rdev,
2440 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2441 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2442 if (IS_ERR(wdev)) {
2443 nlmsg_free(msg);
84efbb84 2444 return PTR_ERR(wdev);
1c90f9d4 2445 }
2ec600d6 2446
98104fde
JB		 2447 switch (type) {
2448 case NL80211_IFTYPE_MESH_POINT:
2449 if (!info->attrs[NL80211_ATTR_MESH_ID])
2450 break;
29cbe68c
JB		 2451 wdev_lock(wdev);
2452 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2453 IEEE80211_MAX_MESH_ID_LEN);
2454 wdev->mesh_id_up_len =
2455 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2456 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2457 wdev->mesh_id_up_len);
2458 wdev_unlock(wdev);
98104fde
JB		 2459 break;
2460 case NL80211_IFTYPE_P2P_DEVICE:
2461 /*
2462 * P2P Device doesn't have a netdev, so doesn't go
2463 * through the netdev notifier and must be added here
2464 */
2465 mutex_init(&wdev->mtx);
2466 INIT_LIST_HEAD(&wdev->event_list);
2467 spin_lock_init(&wdev->event_lock);
2468 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2469 spin_lock_init(&wdev->mgmt_registrations_lock);
2470
2471 mutex_lock(&rdev->devlist_mtx);
2472 wdev->identifier = ++rdev->wdev_id;
2473 list_add_rcu(&wdev->list, &rdev->wdev_list);
2474 rdev->devlist_generation++;
2475 mutex_unlock(&rdev->devlist_mtx);
2476 break;
2477 default:
2478 break;
29cbe68c
JB		 2479 }
2480
15e47304 2481 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2482 rdev, wdev) < 0) {
2483 nlmsg_free(msg);
2484 return -ENOBUFS;
2485 }
2486
2487 return genlmsg_reply(msg, info);
55682965
JB		 2488}
2489
2490static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2491{
4c476991 2492 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2493 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2494
4c476991
JB		 2495 if (!rdev->ops->del_virtual_intf)
2496 return -EOPNOTSUPP;
55682965 2497
84efbb84
JB		 2498 /*
2499 * If we remove a wireless device without a netdev then clear
2500 * user_ptr[1] so that nl80211_post_doit won't dereference it
2501 * to check if it needs to do dev_put(). Otherwise it crashes
2502 * since the wdev has been freed, unlike with a netdev where
2503 * we need the dev_put() for the netdev to really be freed.
2504 */
2505 if (!wdev->netdev)
2506 info->user_ptr[1] = NULL;
2507
e35e4d28 2508 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2509}
2510
1d9d9213
SW		 2511static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2512{
2513 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2514 struct net_device *dev = info->user_ptr[1];
2515 u16 noack_map;
2516
2517 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2518 return -EINVAL;
2519
2520 if (!rdev->ops->set_noack_map)
2521 return -EOPNOTSUPP;
2522
2523 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2524
e35e4d28 2525 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2526}
2527
41ade00f
JB		 2528struct get_key_cookie {
2529 struct sk_buff *msg;
2530 int error;
b9454e83 2531 int idx;
41ade00f
JB		 2532};
2533
2534static void get_key_callback(void *c, struct key_params *params)
2535{
b9454e83 2536 struct nlattr *key;
41ade00f
JB		 2537 struct get_key_cookie *cookie = c;
2538
9360ffd1
DM		 2539 if ((params->key &&
2540 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2541 params->key_len, params->key)) ||
2542 (params->seq &&
2543 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2544 params->seq_len, params->seq)) ||
2545 (params->cipher &&
2546 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2547 params->cipher)))
2548 goto nla_put_failure;
41ade00f 2549
b9454e83
JB		 2550 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2551 if (!key)
2552 goto nla_put_failure;
2553
9360ffd1
DM		 2554 if ((params->key &&
2555 nla_put(cookie->msg, NL80211_KEY_DATA,
2556 params->key_len, params->key)) ||
2557 (params->seq &&
2558 nla_put(cookie->msg, NL80211_KEY_SEQ,
2559 params->seq_len, params->seq)) ||
2560 (params->cipher &&
2561 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2562 params->cipher)))
2563 goto nla_put_failure;
b9454e83 2564
9360ffd1
DM		 2565 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2566 goto nla_put_failure;
b9454e83
JB		 2567
2568 nla_nest_end(cookie->msg, key);
2569
41ade00f
JB		 2570 return;
2571 nla_put_failure:
2572 cookie->error = 1;
2573}
2574
2575static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2576{
4c476991 2577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2578 int err;
4c476991 2579 struct net_device *dev = info->user_ptr[1];
41ade00f 2580 u8 key_idx = 0;
e31b8213
JB		 2581 const u8 *mac_addr = NULL;
2582 bool pairwise;
41ade00f
JB		 2583 struct get_key_cookie cookie = {
2584 .error = 0,
2585 };
2586 void *hdr;
2587 struct sk_buff *msg;
2588
2589 if (info->attrs[NL80211_ATTR_KEY_IDX])
2590 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2591
3cfcf6ac 2592 if (key_idx > 5)
41ade00f
JB		 2593 return -EINVAL;
2594
2595 if (info->attrs[NL80211_ATTR_MAC])
2596 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2597
e31b8213
JB		 2598 pairwise = !!mac_addr;
2599 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2600 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2601 if (kt >= NUM_NL80211_KEYTYPES)
2602 return -EINVAL;
2603 if (kt != NL80211_KEYTYPE_GROUP &&
2604 kt != NL80211_KEYTYPE_PAIRWISE)
2605 return -EINVAL;
2606 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2607 }
2608
4c476991
JB		 2609 if (!rdev->ops->get_key)
2610 return -EOPNOTSUPP;
41ade00f 2611
fd2120ca 2612 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2613 if (!msg)
2614 return -ENOMEM;
41ade00f 2615
15e47304 2616 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2617 NL80211_CMD_NEW_KEY);
4c476991
JB		 2618 if (IS_ERR(hdr))
2619 return PTR_ERR(hdr);
41ade00f
JB		 2620
2621 cookie.msg = msg;
b9454e83 2622 cookie.idx = key_idx;
41ade00f 2623
9360ffd1
DM		 2624 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2625 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2626 goto nla_put_failure;
2627 if (mac_addr &&
2628 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2629 goto nla_put_failure;
41ade00f 2630
e31b8213
JB		 2631 if (pairwise && mac_addr &&
2632 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2633 return -ENOENT;
2634
e35e4d28
HG		 2635 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2636 get_key_callback);
41ade00f
JB		 2637
2638 if (err)
6c95e2a2 2639 goto free_msg;
41ade00f
JB		 2640
2641 if (cookie.error)
2642 goto nla_put_failure;
2643
2644 genlmsg_end(msg, hdr);
4c476991 2645 return genlmsg_reply(msg, info);
41ade00f
JB		 2646
2647 nla_put_failure:
2648 err = -ENOBUFS;
6c95e2a2 2649 free_msg:
41ade00f 2650 nlmsg_free(msg);
41ade00f
JB		 2651 return err;
2652}
2653
2654static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2655{
4c476991 2656 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2657 struct key_parse key;
41ade00f 2658 int err;
4c476991 2659 struct net_device *dev = info->user_ptr[1];
41ade00f 2660
b9454e83
JB		 2661 err = nl80211_parse_key(info, &key);
2662 if (err)
2663 return err;
41ade00f 2664
b9454e83 2665 if (key.idx < 0)
41ade00f
JB		 2666 return -EINVAL;
2667
b9454e83
JB		 2668 /* only support setting default key */
2669 if (!key.def && !key.defmgmt)
41ade00f
JB		 2670 return -EINVAL;
2671
dbd2fd65 2672 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2673
dbd2fd65
JB		 2674 if (key.def) {
2675 if (!rdev->ops->set_default_key) {
2676 err = -EOPNOTSUPP;
2677 goto out;
2678 }
41ade00f 2679
dbd2fd65
JB		 2680 err = nl80211_key_allowed(dev->ieee80211_ptr);
2681 if (err)
2682 goto out;
2683
e35e4d28 2684 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2685 key.def_uni, key.def_multi);
2686
2687 if (err)
2688 goto out;
fffd0934 2689
3d23e349 2690#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2691 dev->ieee80211_ptr->wext.default_key = key.idx;
2692#endif
2693 } else {
2694 if (key.def_uni || !key.def_multi) {
2695 err = -EINVAL;
2696 goto out;
2697 }
2698
2699 if (!rdev->ops->set_default_mgmt_key) {
2700 err = -EOPNOTSUPP;
2701 goto out;
2702 }
2703
2704 err = nl80211_key_allowed(dev->ieee80211_ptr);
2705 if (err)
2706 goto out;
2707
e35e4d28 2708 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2709 if (err)
2710 goto out;
2711
2712#ifdef CONFIG_CFG80211_WEXT
2713 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2714#endif
dbd2fd65
JB		 2715 }
2716
2717 out:
fffd0934 2718 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2719
41ade00f
JB		 2720 return err;
2721}
2722
2723static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2724{
4c476991 2725 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2726 int err;
4c476991 2727 struct net_device *dev = info->user_ptr[1];
b9454e83 2728 struct key_parse key;
e31b8213 2729 const u8 *mac_addr = NULL;
41ade00f 2730
b9454e83
JB		 2731 err = nl80211_parse_key(info, &key);
2732 if (err)
2733 return err;
41ade00f 2734
b9454e83 2735 if (!key.p.key)
41ade00f
JB		 2736 return -EINVAL;
2737
41ade00f
JB		 2738 if (info->attrs[NL80211_ATTR_MAC])
2739 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2740
e31b8213
JB		 2741 if (key.type == -1) {
2742 if (mac_addr)
2743 key.type = NL80211_KEYTYPE_PAIRWISE;
2744 else
2745 key.type = NL80211_KEYTYPE_GROUP;
2746 }
2747
2748 /* for now */
2749 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2750 key.type != NL80211_KEYTYPE_GROUP)
2751 return -EINVAL;
2752
4c476991
JB		 2753 if (!rdev->ops->add_key)
2754 return -EOPNOTSUPP;
25e47c18 2755
e31b8213
JB		 2756 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2757 key.type == NL80211_KEYTYPE_PAIRWISE,
2758 mac_addr))
4c476991 2759 return -EINVAL;
41ade00f 2760
fffd0934
JB		 2761 wdev_lock(dev->ieee80211_ptr);
2762 err = nl80211_key_allowed(dev->ieee80211_ptr);
2763 if (!err)
e35e4d28
HG		 2764 err = rdev_add_key(rdev, dev, key.idx,
2765 key.type == NL80211_KEYTYPE_PAIRWISE,
2766 mac_addr, &key.p);
fffd0934 2767 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2768
41ade00f
JB		 2769 return err;
2770}
2771
2772static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2773{
4c476991 2774 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2775 int err;
4c476991 2776 struct net_device *dev = info->user_ptr[1];
41ade00f 2777 u8 *mac_addr = NULL;
b9454e83 2778 struct key_parse key;
41ade00f 2779
b9454e83
JB		 2780 err = nl80211_parse_key(info, &key);
2781 if (err)
2782 return err;
41ade00f
JB		 2783
2784 if (info->attrs[NL80211_ATTR_MAC])
2785 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2786
e31b8213
JB		 2787 if (key.type == -1) {
2788 if (mac_addr)
2789 key.type = NL80211_KEYTYPE_PAIRWISE;
2790 else
2791 key.type = NL80211_KEYTYPE_GROUP;
2792 }
2793
2794 /* for now */
2795 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2796 key.type != NL80211_KEYTYPE_GROUP)
2797 return -EINVAL;
2798
4c476991
JB		 2799 if (!rdev->ops->del_key)
2800 return -EOPNOTSUPP;
41ade00f 2801
fffd0934
JB		 2802 wdev_lock(dev->ieee80211_ptr);
2803 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2804
2805 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2806 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2807 err = -ENOENT;
2808
fffd0934 2809 if (!err)
e35e4d28
HG		 2810 err = rdev_del_key(rdev, dev, key.idx,
2811 key.type == NL80211_KEYTYPE_PAIRWISE,
2812 mac_addr);
41ade00f 2813
3d23e349 2814#ifdef CONFIG_CFG80211_WEXT
08645126 2815 if (!err) {
b9454e83 2816 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2817 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2818 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2819 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2820 }
2821#endif
fffd0934 2822 wdev_unlock(dev->ieee80211_ptr);
08645126 2823
41ade00f
JB		 2824 return err;
2825}
2826
77765eaf
VT		 2827/* This function returns an error or the number of nested attributes */
2828static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2829{
2830 struct nlattr *attr;
2831 int n_entries = 0, tmp;
2832
2833 nla_for_each_nested(attr, nl_attr, tmp) {
2834 if (nla_len(attr) != ETH_ALEN)
2835 return -EINVAL;
2836
2837 n_entries++;
2838 }
2839
2840 return n_entries;
2841}
2842
2843/*
2844 * This function parses ACL information and allocates memory for ACL data.
2845 * On successful return, the calling function is responsible to free the
2846 * ACL buffer returned by this function.
2847 */
2848static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2849 struct genl_info *info)
2850{
2851 enum nl80211_acl_policy acl_policy;
2852 struct nlattr *attr;
2853 struct cfg80211_acl_data *acl;
2854 int i = 0, n_entries, tmp;
2855
2856 if (!wiphy->max_acl_mac_addrs)
2857 return ERR_PTR(-EOPNOTSUPP);
2858
2859 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2860 return ERR_PTR(-EINVAL);
2861
2862 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2863 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2864 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2865 return ERR_PTR(-EINVAL);
2866
2867 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2868 return ERR_PTR(-EINVAL);
2869
2870 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2871 if (n_entries < 0)
2872 return ERR_PTR(n_entries);
2873
2874 if (n_entries > wiphy->max_acl_mac_addrs)
2875 return ERR_PTR(-ENOTSUPP);
2876
2877 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2878 GFP_KERNEL);
2879 if (!acl)
2880 return ERR_PTR(-ENOMEM);
2881
2882 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2883 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2884 i++;
2885 }
2886
2887 acl->n_acl_entries = n_entries;
2888 acl->acl_policy = acl_policy;
2889
2890 return acl;
2891}
2892
2893static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2894{
2895 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2896 struct net_device *dev = info->user_ptr[1];
2897 struct cfg80211_acl_data *acl;
2898 int err;
2899
2900 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2901 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2902 return -EOPNOTSUPP;
2903
2904 if (!dev->ieee80211_ptr->beacon_interval)
2905 return -EINVAL;
2906
2907 acl = parse_acl_data(&rdev->wiphy, info);
2908 if (IS_ERR(acl))
2909 return PTR_ERR(acl);
2910
2911 err = rdev_set_mac_acl(rdev, dev, acl);
2912
2913 kfree(acl);
2914
2915 return err;
2916}
2917
8860020e
JB		 2918static int nl80211_parse_beacon(struct genl_info *info,
2919 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2920{
8860020e 2921 bool haveinfo = false;
ed1b6cc7 2922
9946ecfb
JM		 2923 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2924 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2925 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2926 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2927 return -EINVAL;
2928
8860020e 2929 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2930
ed1b6cc7 2931 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2932 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2933 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2934 if (!bcn->head_len)
2935 return -EINVAL;
2936 haveinfo = true;
ed1b6cc7
JB		 2937 }
2938
2939 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2940 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2941 bcn->tail_len =
ed1b6cc7 2942 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2943 haveinfo = true;
ed1b6cc7
JB		 2944 }
2945
4c476991
JB		 2946 if (!haveinfo)
2947 return -EINVAL;
3b85875a 2948
9946ecfb 2949 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2950 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2951 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2952 }
2953
2954 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2955 bcn->proberesp_ies =
9946ecfb 2956 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2957 bcn->proberesp_ies_len =
9946ecfb
JM		 2958 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2959 }
2960
2961 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2962 bcn->assocresp_ies =
9946ecfb 2963 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2964 bcn->assocresp_ies_len =
9946ecfb
JM		 2965 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2966 }
2967
00f740e1 2968 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2969 bcn->probe_resp =
00f740e1 2970 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2971 bcn->probe_resp_len =
00f740e1
AN		 2972 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2973 }
2974
8860020e
JB		 2975 return 0;
2976}
2977
46c1dd0c
FF		 2978static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2979 struct cfg80211_ap_settings *params)
2980{
2981 struct wireless_dev *wdev;
2982 bool ret = false;
2983
2984 mutex_lock(&rdev->devlist_mtx);
2985
89a54e48 2986 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2987 if (wdev->iftype != NL80211_IFTYPE_AP &&
2988 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2989 continue;
2990
683b6d3b 2991 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2992 continue;
2993
683b6d3b 2994 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2995 ret = true;
2996 break;
2997 }
2998
2999 mutex_unlock(&rdev->devlist_mtx);
3000
3001 return ret;
3002}
3003
e39e5b5e
JM		 3004static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3005 enum nl80211_auth_type auth_type,
3006 enum nl80211_commands cmd)
3007{
3008 if (auth_type > NL80211_AUTHTYPE_MAX)
3009 return false;
3010
3011 switch (cmd) {
3012 case NL80211_CMD_AUTHENTICATE:
3013 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3014 auth_type == NL80211_AUTHTYPE_SAE)
3015 return false;
3016 return true;
3017 case NL80211_CMD_CONNECT:
3018 case NL80211_CMD_START_AP:
3019 /* SAE not supported yet */
3020 if (auth_type == NL80211_AUTHTYPE_SAE)
3021 return false;
3022 return true;
3023 default:
3024 return false;
3025 }
3026}
3027
8860020e
JB		 3028static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3029{
3030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3031 struct net_device *dev = info->user_ptr[1];
3032 struct wireless_dev *wdev = dev->ieee80211_ptr;
3033 struct cfg80211_ap_settings params;
3034 int err;
04f39047 3035 u8 radar_detect_width = 0;
8860020e
JB		 3036
3037 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3038 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3039 return -EOPNOTSUPP;
3040
3041 if (!rdev->ops->start_ap)
3042 return -EOPNOTSUPP;
3043
3044 if (wdev->beacon_interval)
3045 return -EALREADY;
3046
3047 memset(&params, 0, sizeof(params));
3048
3049 /* these are required for START_AP */
3050 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3051 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3052 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3053 return -EINVAL;
3054
3055 err = nl80211_parse_beacon(info, &params.beacon);
3056 if (err)
3057 return err;
3058
3059 params.beacon_interval =
3060 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3061 params.dtim_period =
3062 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3063
3064 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3065 if (err)
3066 return err;
3067
3068 /*
3069 * In theory, some of these attributes should be required here
3070 * but since they were not used when the command was originally
3071 * added, keep them optional for old user space programs to let
3072 * them continue to work with drivers that do not need the
3073 * additional information -- drivers must check!
3074 */
3075 if (info->attrs[NL80211_ATTR_SSID]) {
3076 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3077 params.ssid_len =
3078 nla_len(info->attrs[NL80211_ATTR_SSID]);
3079 if (params.ssid_len == 0 ||
3080 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3081 return -EINVAL;
3082 }
3083
3084 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3085 params.hidden_ssid = nla_get_u32(
3086 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3087 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3088 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3089 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3090 return -EINVAL;
3091 }
3092
3093 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3094
3095 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3096 params.auth_type = nla_get_u32(
3097 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3098 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3099 NL80211_CMD_START_AP))
8860020e
JB		 3100 return -EINVAL;
3101 } else
3102 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3103
3104 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3105 NL80211_MAX_NR_CIPHER_SUITES);
3106 if (err)
3107 return err;
3108
1b658f11
VT		 3109 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3110 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3111 return -EOPNOTSUPP;
3112 params.inactivity_timeout = nla_get_u16(
3113 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3114 }
3115
53cabad7
JB		 3116 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3117 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3118 return -EINVAL;
3119 params.p2p_ctwindow =
3120 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3121 if (params.p2p_ctwindow > 127)
3122 return -EINVAL;
3123 if (params.p2p_ctwindow != 0 &&
3124 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3125 return -EINVAL;
3126 }
3127
3128 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3129 u8 tmp;
3130
3131 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3132 return -EINVAL;
3133 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3134 if (tmp > 1)
3135 return -EINVAL;
3136 params.p2p_opp_ps = tmp;
3137 if (params.p2p_opp_ps != 0 &&
3138 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3139 return -EINVAL;
3140 }
3141
aa430da4 3142 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3143 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3144 if (err)
3145 return err;
3146 } else if (wdev->preset_chandef.chan) {
3147 params.chandef = wdev->preset_chandef;
46c1dd0c 3148 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3149 return -EINVAL;
3150
683b6d3b 3151 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3152 return -EINVAL;
3153
04f39047
SW		 3154 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3155 if (err < 0)
3156 return err;
3157 if (err) {
3158 radar_detect_width = BIT(params.chandef.width);
3159 params.radar_required = true;
3160 }
3161
e4e32459 3162 mutex_lock(&rdev->devlist_mtx);
04f39047
SW		 3163 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3164 params.chandef.chan,
3165 CHAN_MODE_SHARED,
3166 radar_detect_width);
e4e32459
MK		 3167 mutex_unlock(&rdev->devlist_mtx);
3168
3169 if (err)
3170 return err;
3171
77765eaf
VT		 3172 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3173 params.acl = parse_acl_data(&rdev->wiphy, info);
3174 if (IS_ERR(params.acl))
3175 return PTR_ERR(params.acl);
3176 }
3177
e35e4d28 3178 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3179 if (!err) {
683b6d3b 3180 wdev->preset_chandef = params.chandef;
8860020e 3181 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3182 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3183 wdev->ssid_len = params.ssid_len;
3184 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3185 }
77765eaf
VT		 3186
3187 kfree(params.acl);
3188
56d1893d 3189 return err;
ed1b6cc7
JB		 3190}
3191
8860020e
JB		 3192static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3193{
3194 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3195 struct net_device *dev = info->user_ptr[1];
3196 struct wireless_dev *wdev = dev->ieee80211_ptr;
3197 struct cfg80211_beacon_data params;
3198 int err;
3199
3200 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3201 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3202 return -EOPNOTSUPP;
3203
3204 if (!rdev->ops->change_beacon)
3205 return -EOPNOTSUPP;
3206
3207 if (!wdev->beacon_interval)
3208 return -EINVAL;
3209
3210 err = nl80211_parse_beacon(info, &params);
3211 if (err)
3212 return err;
3213
e35e4d28 3214 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 3215}
3216
3217static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3218{
4c476991
JB		 3219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3220 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3221
60771780 3222 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3223}
3224
5727ef1b
JB		 3225static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3226 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3227 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3228 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3229 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3230 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3231 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3232};
3233
eccb8e8f 3234static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3235 enum nl80211_iftype iftype,
eccb8e8f 3236 struct station_parameters *params)
5727ef1b
JB		 3237{
3238 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3239 struct nlattr *nla;
5727ef1b
JB		 3240 int flag;
3241
eccb8e8f
JB		 3242 /*
3243 * Try parsing the new attribute first so userspace
3244 * can specify both for older kernels.
3245 */
3246 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3247 if (nla) {
3248 struct nl80211_sta_flag_update *sta_flags;
3249
3250 sta_flags = nla_data(nla);
3251 params->sta_flags_mask = sta_flags->mask;
3252 params->sta_flags_set = sta_flags->set;
77ee7c89 3253 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3254 if ((params->sta_flags_mask |
3255 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3256 return -EINVAL;
3257 return 0;
3258 }
3259
3260 /* if present, parse the old attribute */
5727ef1b 3261
eccb8e8f 3262 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3263 if (!nla)
3264 return 0;
3265
3266 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3267 nla, sta_flags_policy))
3268 return -EINVAL;
3269
bdd3ae3d
JB		 3270 /*
3271 * Only allow certain flags for interface types so that
3272 * other attributes are silently ignored. Remember that
3273 * this is backward compatibility code with old userspace
3274 * and shouldn't be hit in other cases anyway.
3275 */
3276 switch (iftype) {
3277 case NL80211_IFTYPE_AP:
3278 case NL80211_IFTYPE_AP_VLAN:
3279 case NL80211_IFTYPE_P2P_GO:
3280 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3281 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3282 BIT(NL80211_STA_FLAG_WME) |
3283 BIT(NL80211_STA_FLAG_MFP);
3284 break;
3285 case NL80211_IFTYPE_P2P_CLIENT:
3286 case NL80211_IFTYPE_STATION:
3287 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3288 BIT(NL80211_STA_FLAG_TDLS_PEER);
3289 break;
3290 case NL80211_IFTYPE_MESH_POINT:
3291 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3292 BIT(NL80211_STA_FLAG_MFP) |
3293 BIT(NL80211_STA_FLAG_AUTHORIZED);
3294 default:
3295 return -EINVAL;
3296 }
5727ef1b 3297
3383b5a6
JB		 3298 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3299 if (flags[flag]) {
eccb8e8f 3300 params->sta_flags_set |= (1<<flag);
5727ef1b 3301
3383b5a6
JB		 3302 /* no longer support new API additions in old API */
3303 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3304 return -EINVAL;
3305 }
3306 }
3307
5727ef1b
JB		 3308 return 0;
3309}
3310
c8dcfd8a
FF		 3311static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3312 int attr)
3313{
3314 struct nlattr *rate;
8eb41c8d
VK		 3315 u32 bitrate;
3316 u16 bitrate_compat;
c8dcfd8a
FF		 3317
3318 rate = nla_nest_start(msg, attr);
3319 if (!rate)
db9c64cf 3320 return false;
c8dcfd8a
FF		 3321
3322 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3323 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3324 /* report 16-bit bitrate only if we can */
3325 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3326 if (bitrate > 0 &&
3327 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3328 return false;
3329 if (bitrate_compat > 0 &&
3330 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3331 return false;
3332
3333 if (info->flags & RATE_INFO_FLAGS_MCS) {
3334 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3335 return false;
3336 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3337 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3338 return false;
3339 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3340 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3341 return false;
3342 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3343 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3344 return false;
3345 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3346 return false;
3347 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3348 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3349 return false;
3350 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3351 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3352 return false;
3353 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3354 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3355 return false;
3356 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3357 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3358 return false;
3359 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3360 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3361 return false;
3362 }
c8dcfd8a
FF		 3363
3364 nla_nest_end(msg, rate);
3365 return true;
c8dcfd8a
FF		 3366}
3367
15e47304 3368static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3369 int flags,
3370 struct cfg80211_registered_device *rdev,
3371 struct net_device *dev,
98b62183 3372 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3373{
3374 void *hdr;
f4263c98 3375 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3376
15e47304 3377 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3378 if (!hdr)
3379 return -1;
3380
9360ffd1
DM		 3381 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3382 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3383 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3384 goto nla_put_failure;
f5ea9120 3385
2ec600d6
LCC		 3386 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3387 if (!sinfoattr)
fd5b74dc 3388 goto nla_put_failure;
9360ffd1
DM		 3389 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3390 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3391 sinfo->connected_time))
3392 goto nla_put_failure;
3393 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3394 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3395 sinfo->inactive_time))
3396 goto nla_put_failure;
42745e03
VK		 3397 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3398 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3399 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3400 (u32)sinfo->rx_bytes))
9360ffd1 3401 goto nla_put_failure;
42745e03
VK		 3402 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3403 NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3404 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3405 (u32)sinfo->tx_bytes))
3406 goto nla_put_failure;
3407 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3408 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3409 sinfo->rx_bytes))
3410 goto nla_put_failure;
3411 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3412 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3413 sinfo->tx_bytes))
3414 goto nla_put_failure;
3415 if ((sinfo->filled & STATION_INFO_LLID) &&
3416 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3417 goto nla_put_failure;
3418 if ((sinfo->filled & STATION_INFO_PLID) &&
3419 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3420 goto nla_put_failure;
3421 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3422 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3423 sinfo->plink_state))
3424 goto nla_put_failure;
66266b3a
JL		 3425 switch (rdev->wiphy.signal_type) {
3426 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3427 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3428 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3429 sinfo->signal))
3430 goto nla_put_failure;
3431 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3432 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3433 sinfo->signal_avg))
3434 goto nla_put_failure;
66266b3a
JL		 3435 break;
3436 default:
3437 break;
3438 }
420e7fab 3439 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3440 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3441 NL80211_STA_INFO_TX_BITRATE))
3442 goto nla_put_failure;
3443 }
3444 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3445 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3446 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3447 goto nla_put_failure;
420e7fab 3448 }
9360ffd1
DM		 3449 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3450 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3451 sinfo->rx_packets))
3452 goto nla_put_failure;
3453 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3454 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3455 sinfo->tx_packets))
3456 goto nla_put_failure;
3457 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3458 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3459 sinfo->tx_retries))
3460 goto nla_put_failure;
3461 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3462 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3463 sinfo->tx_failed))
3464 goto nla_put_failure;
3465 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3466 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3467 sinfo->beacon_loss_count))
3468 goto nla_put_failure;
3b1c5a53
MP		 3469 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3470 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3471 sinfo->local_pm))
3472 goto nla_put_failure;
3473 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3474 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3475 sinfo->peer_pm))
3476 goto nla_put_failure;
3477 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3478 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3479 sinfo->nonpeer_pm))
3480 goto nla_put_failure;
f4263c98
PS		 3481 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3482 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3483 if (!bss_param)
3484 goto nla_put_failure;
3485
9360ffd1
DM		 3486 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3487 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3488 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3489 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3490 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3491 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3492 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3493 sinfo->bss_param.dtim_period) ||
3494 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3495 sinfo->bss_param.beacon_interval))
3496 goto nla_put_failure;
f4263c98
PS		 3497
3498 nla_nest_end(msg, bss_param);
3499 }
9360ffd1
DM		 3500 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3501 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3502 sizeof(struct nl80211_sta_flag_update),
3503 &sinfo->sta_flags))
3504 goto nla_put_failure;
7eab0f64
JL		 3505 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3506 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3507 sinfo->t_offset))
3508 goto nla_put_failure;
2ec600d6 3509 nla_nest_end(msg, sinfoattr);
fd5b74dc 3510
9360ffd1
DM		 3511 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3512 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3513 sinfo->assoc_req_ies))
3514 goto nla_put_failure;
50d3dfb7 3515
fd5b74dc
JB		 3516 return genlmsg_end(msg, hdr);
3517
3518 nla_put_failure:
bc3ed28c
TG		 3519 genlmsg_cancel(msg, hdr);
3520 return -EMSGSIZE;
fd5b74dc
JB		 3521}
3522
2ec600d6 3523static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3524 struct netlink_callback *cb)
2ec600d6 3525{
2ec600d6
LCC		 3526 struct station_info sinfo;
3527 struct cfg80211_registered_device *dev;
bba95fef 3528 struct net_device *netdev;
2ec600d6 3529 u8 mac_addr[ETH_ALEN];
bba95fef 3530 int sta_idx = cb->args[1];
2ec600d6 3531 int err;
2ec600d6 3532
67748893
JB		 3533 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3534 if (err)
3535 return err;
bba95fef
JB		 3536
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));
e35e4d28
HG		 3544 err = rdev_dump_station(dev, netdev, sta_idx,
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,
66266b3a 3554 dev, netdev, mac_addr,
bba95fef
JB		 3555 &sinfo) < 0)
3556 goto out;
3557
3558 sta_idx++;
3559 }
3560
3561
3562 out:
3563 cb->args[1] = sta_idx;
3564 err = skb->len;
bba95fef 3565 out_err:
67748893 3566 nl80211_finish_netdev_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 */
3821 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3822 params->ht_capa =
3823 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3824 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3825 params->vht_capa =
3826 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3827
3828 return nl80211_parse_sta_wme(info, params);
3829}
3830
5727ef1b
JB		 3831static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3832{
4c476991 3833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3834 struct net_device *dev = info->user_ptr[1];
5727ef1b 3835 struct station_parameters params;
77ee7c89
JB		 3836 u8 *mac_addr;
3837 int err;
5727ef1b
JB		 3838
3839 memset(&params, 0, sizeof(params));
3840
3841 params.listen_interval = -1;
3842
77ee7c89
JB		 3843 if (!rdev->ops->change_station)
3844 return -EOPNOTSUPP;
3845
5727ef1b
JB		 3846 if (info->attrs[NL80211_ATTR_STA_AID])
3847 return -EINVAL;
3848
3849 if (!info->attrs[NL80211_ATTR_MAC])
3850 return -EINVAL;
3851
3852 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3853
3854 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3855 params.supported_rates =
3856 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3857 params.supported_rates_len =
3858 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3859 }
3860
9d62a986
JM		 3861 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3862 params.capability =
3863 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3864 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3865 }
3866
3867 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3868 params.ext_capab =
3869 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3870 params.ext_capab_len =
3871 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3872 }
3873
df881293 3874 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3875 return -EINVAL;
36aedc90 3876
bdd3ae3d 3877 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3878 return -EINVAL;
3879
f8bacc21 3880 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3881 params.plink_action =
f8bacc21
JB		 3882 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3883 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3884 return -EINVAL;
3885 }
2ec600d6 3886
f8bacc21 3887 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3888 params.plink_state =
f8bacc21
JB		 3889 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3890 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3891 return -EINVAL;
3892 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3893 }
9c3990aa 3894
3b1c5a53
MP		 3895 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3896 enum nl80211_mesh_power_mode pm = nla_get_u32(
3897 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3898
3899 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3900 pm > NL80211_MESH_POWER_MAX)
3901 return -EINVAL;
3902
3903 params.local_pm = pm;
3904 }
3905
77ee7c89
JB		 3906 /* Include parameters for TDLS peer (will check later) */
3907 err = nl80211_set_station_tdls(info, &params);
3908 if (err)
3909 return err;
3910
3911 params.vlan = get_vlan(info, rdev);
3912 if (IS_ERR(params.vlan))
3913 return PTR_ERR(params.vlan);
3914
a97f4424
JB		 3915 switch (dev->ieee80211_ptr->iftype) {
3916 case NL80211_IFTYPE_AP:
3917 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3918 case NL80211_IFTYPE_P2P_GO:
074ac8df 3919 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3920 case NL80211_IFTYPE_STATION:
267335d6 3921 case NL80211_IFTYPE_ADHOC:
a97f4424 3922 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 3923 break;
3924 default:
77ee7c89
JB		 3925 err = -EOPNOTSUPP;
3926 goto out_put_vlan;
034d655e
JB		 3927 }
3928
77ee7c89 3929 /* driver will call cfg80211_check_station_change() */
e35e4d28 3930 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3931
77ee7c89 3932 out_put_vlan:
5727ef1b
JB		 3933 if (params.vlan)
3934 dev_put(params.vlan);
3b85875a 3935
5727ef1b
JB		 3936 return err;
3937}
3938
3939static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3940{
4c476991 3941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3942 int err;
4c476991 3943 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3944 struct station_parameters params;
3945 u8 *mac_addr = NULL;
3946
3947 memset(&params, 0, sizeof(params));
3948
984c311b
JB		 3949 if (!rdev->ops->add_station)
3950 return -EOPNOTSUPP;
3951
5727ef1b
JB		 3952 if (!info->attrs[NL80211_ATTR_MAC])
3953 return -EINVAL;
3954
5727ef1b
JB		 3955 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3956 return -EINVAL;
3957
3958 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3959 return -EINVAL;
3960
0e956c13
TLSC		 3961 if (!info->attrs[NL80211_ATTR_STA_AID])
3962 return -EINVAL;
3963
5727ef1b
JB		 3964 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3965 params.supported_rates =
3966 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3967 params.supported_rates_len =
3968 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3969 params.listen_interval =
3970 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3971
0e956c13
TLSC		 3972 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3973 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3974 return -EINVAL;
51b50fbe 3975
9d62a986
JM		 3976 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3977 params.capability =
3978 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3979 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3980 }
3981
3982 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3983 params.ext_capab =
3984 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3985 params.ext_capab_len =
3986 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3987 }
3988
36aedc90
JM		 3989 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3990 params.ht_capa =
3991 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3992
f461be3e
MP		 3993 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3994 params.vht_capa =
3995 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3996
f8bacc21 3997 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 3998 params.plink_action =
f8bacc21
JB		 3999 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4000 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4001 return -EINVAL;
4002 }
96b78dff 4003
ff276691
JB		 4004 err = nl80211_parse_sta_wme(info, &params);
4005 if (err)
4006 return err;
bdd90d5e 4007
bdd3ae3d 4008 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4009 return -EINVAL;
4010
77ee7c89
JB		 4011 /* When you run into this, adjust the code below for the new flag */
4012 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4013
bdd90d5e
JB		 4014 switch (dev->ieee80211_ptr->iftype) {
4015 case NL80211_IFTYPE_AP:
4016 case NL80211_IFTYPE_AP_VLAN:
4017 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4018 /* ignore WME attributes if iface/sta is not capable */
4019 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4020 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4021 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4022
bdd90d5e
JB		 4023 /* TDLS peers cannot be added */
4024 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 4025 return -EINVAL;
bdd90d5e
JB		 4026 /* but don't bother the driver with it */
4027 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4028
d582cffb
JB		 4029 /* allow authenticated/associated only if driver handles it */
4030 if (!(rdev->wiphy.features &
4031 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4032 params.sta_flags_mask &
4033 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4034 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4035 return -EINVAL;
4036
bdd90d5e
JB		 4037 /* must be last in here for error handling */
4038 params.vlan = get_vlan(info, rdev);
4039 if (IS_ERR(params.vlan))
4040 return PTR_ERR(params.vlan);
4041 break;
4042 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4043 /* ignore uAPSD data */
4044 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4045
d582cffb
JB		 4046 /* associated is disallowed */
4047 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4048 return -EINVAL;
bdd90d5e
JB		 4049 /* TDLS peers cannot be added */
4050 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4051 return -EINVAL;
4052 break;
4053 case NL80211_IFTYPE_STATION:
93d08f0b 4054 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4055 /* ignore uAPSD data */
4056 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4057
77ee7c89
JB		 4058 /* these are disallowed */
4059 if (params.sta_flags_mask &
4060 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4061 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4062 return -EINVAL;
bdd90d5e
JB		 4063 /* Only TDLS peers can be added */
4064 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4065 return -EINVAL;
4066 /* Can only add if TDLS ... */
4067 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4068 return -EOPNOTSUPP;
4069 /* ... with external setup is supported */
4070 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4071 return -EOPNOTSUPP;
77ee7c89
JB		 4072 /*
4073 * Older wpa_supplicant versions always mark the TDLS peer
4074 * as authorized, but it shouldn't yet be.
4075 */
4076 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4077 break;
4078 default:
4079 return -EOPNOTSUPP;
c75786c9
EP		 4080 }
4081
bdd90d5e 4082 /* be aware of params.vlan when changing code here */
5727ef1b 4083
e35e4d28 4084 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4085
5727ef1b
JB		 4086 if (params.vlan)
4087 dev_put(params.vlan);
5727ef1b
JB		 4088 return err;
4089}
4090
4091static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4092{
4c476991
JB		 4093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4094 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4095 u8 *mac_addr = NULL;
4096
4097 if (info->attrs[NL80211_ATTR_MAC])
4098 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4099
e80cf853 4100 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4101 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4102 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4103 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4104 return -EINVAL;
5727ef1b 4105
4c476991
JB		 4106 if (!rdev->ops->del_station)
4107 return -EOPNOTSUPP;
3b85875a 4108
e35e4d28 4109 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4110}
4111
15e47304 4112static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4113 int flags, struct net_device *dev,
4114 u8 *dst, u8 *next_hop,
4115 struct mpath_info *pinfo)
4116{
4117 void *hdr;
4118 struct nlattr *pinfoattr;
4119
15e47304 4120 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4121 if (!hdr)
4122 return -1;
4123
9360ffd1
DM		 4124 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4125 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4126 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4127 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4128 goto nla_put_failure;
f5ea9120 4129
2ec600d6
LCC		 4130 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4131 if (!pinfoattr)
4132 goto nla_put_failure;
9360ffd1
DM		 4133 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4134 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4135 pinfo->frame_qlen))
4136 goto nla_put_failure;
4137 if (((pinfo->filled & MPATH_INFO_SN) &&
4138 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4139 ((pinfo->filled & MPATH_INFO_METRIC) &&
4140 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4141 pinfo->metric)) ||
4142 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4143 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4144 pinfo->exptime)) ||
4145 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4146 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4147 pinfo->flags)) ||
4148 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4149 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4150 pinfo->discovery_timeout)) ||
4151 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4152 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4153 pinfo->discovery_retries)))
4154 goto nla_put_failure;
2ec600d6
LCC		 4155
4156 nla_nest_end(msg, pinfoattr);
4157
4158 return genlmsg_end(msg, hdr);
4159
4160 nla_put_failure:
bc3ed28c
TG		 4161 genlmsg_cancel(msg, hdr);
4162 return -EMSGSIZE;
2ec600d6
LCC		 4163}
4164
4165static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4166 struct netlink_callback *cb)
2ec600d6 4167{
2ec600d6
LCC		 4168 struct mpath_info pinfo;
4169 struct cfg80211_registered_device *dev;
bba95fef 4170 struct net_device *netdev;
2ec600d6
LCC		 4171 u8 dst[ETH_ALEN];
4172 u8 next_hop[ETH_ALEN];
bba95fef 4173 int path_idx = cb->args[1];
2ec600d6 4174 int err;
2ec600d6 4175
67748893
JB		 4176 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4177 if (err)
4178 return err;
bba95fef
JB		 4179
4180 if (!dev->ops->dump_mpath) {
eec60b03 4181 err = -EOPNOTSUPP;
bba95fef
JB		 4182 goto out_err;
4183 }
4184
eec60b03
JM		 4185 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
4186 err = -EOPNOTSUPP;
0448b5fc 4187 goto out_err;
eec60b03
JM		 4188 }
4189
bba95fef 4190 while (1) {
e35e4d28
HG		 4191 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
4192 &pinfo);
bba95fef 4193 if (err == -ENOENT)
2ec600d6 4194 break;
bba95fef 4195 if (err)
3b85875a 4196 goto out_err;
2ec600d6 4197
15e47304 4198 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 4199 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4200 netdev, dst, next_hop,
4201 &pinfo) < 0)
4202 goto out;
2ec600d6 4203
bba95fef 4204 path_idx++;
2ec600d6 4205 }
2ec600d6 4206
2ec600d6 4207
bba95fef
JB		 4208 out:
4209 cb->args[1] = path_idx;
4210 err = skb->len;
bba95fef 4211 out_err:
67748893 4212 nl80211_finish_netdev_dump(dev);
bba95fef 4213 return err;
2ec600d6
LCC		 4214}
4215
4216static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4217{
4c476991 4218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4219 int err;
4c476991 4220 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4221 struct mpath_info pinfo;
4222 struct sk_buff *msg;
4223 u8 *dst = NULL;
4224 u8 next_hop[ETH_ALEN];
4225
4226 memset(&pinfo, 0, sizeof(pinfo));
4227
4228 if (!info->attrs[NL80211_ATTR_MAC])
4229 return -EINVAL;
4230
4231 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4232
4c476991
JB		 4233 if (!rdev->ops->get_mpath)
4234 return -EOPNOTSUPP;
2ec600d6 4235
4c476991
JB		 4236 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4237 return -EOPNOTSUPP;
eec60b03 4238
e35e4d28 4239 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4240 if (err)
4c476991 4241 return err;
2ec600d6 4242
fd2120ca 4243 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4244 if (!msg)
4c476991 4245 return -ENOMEM;
2ec600d6 4246
15e47304 4247 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4248 dev, dst, next_hop, &pinfo) < 0) {
4249 nlmsg_free(msg);
4250 return -ENOBUFS;
4251 }
3b85875a 4252
4c476991 4253 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4254}
4255
4256static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4257{
4c476991
JB		 4258 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4259 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4260 u8 *dst = NULL;
4261 u8 *next_hop = NULL;
4262
4263 if (!info->attrs[NL80211_ATTR_MAC])
4264 return -EINVAL;
4265
4266 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4267 return -EINVAL;
4268
4269 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4270 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4271
4c476991
JB		 4272 if (!rdev->ops->change_mpath)
4273 return -EOPNOTSUPP;
35a8efe1 4274
4c476991
JB		 4275 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4276 return -EOPNOTSUPP;
2ec600d6 4277
e35e4d28 4278 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4279}
4c476991 4280
2ec600d6
LCC		 4281static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4282{
4c476991
JB		 4283 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4284 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4285 u8 *dst = NULL;
4286 u8 *next_hop = NULL;
4287
4288 if (!info->attrs[NL80211_ATTR_MAC])
4289 return -EINVAL;
4290
4291 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4292 return -EINVAL;
4293
4294 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4295 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4296
4c476991
JB		 4297 if (!rdev->ops->add_mpath)
4298 return -EOPNOTSUPP;
35a8efe1 4299
4c476991
JB		 4300 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4301 return -EOPNOTSUPP;
2ec600d6 4302
e35e4d28 4303 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4304}
4305
4306static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4307{
4c476991
JB		 4308 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4309 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4310 u8 *dst = NULL;
4311
4312 if (info->attrs[NL80211_ATTR_MAC])
4313 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4314
4c476991
JB		 4315 if (!rdev->ops->del_mpath)
4316 return -EOPNOTSUPP;
3b85875a 4317
e35e4d28 4318 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4319}
4320
9f1ba906
JM		 4321static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4322{
4c476991
JB		 4323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4324 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4325 struct bss_parameters params;
4326
4327 memset(&params, 0, sizeof(params));
4328 /* default to not changing parameters */
4329 params.use_cts_prot = -1;
4330 params.use_short_preamble = -1;
4331 params.use_short_slot_time = -1;
fd8aaaf3 4332 params.ap_isolate = -1;
50b12f59 4333 params.ht_opmode = -1;
53cabad7
JB		 4334 params.p2p_ctwindow = -1;
4335 params.p2p_opp_ps = -1;
9f1ba906
JM		 4336
4337 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4338 params.use_cts_prot =
4339 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4340 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4341 params.use_short_preamble =
4342 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4343 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4344 params.use_short_slot_time =
4345 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4346 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4347 params.basic_rates =
4348 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4349 params.basic_rates_len =
4350 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4351 }
fd8aaaf3
FF		 4352 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4353 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4354 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4355 params.ht_opmode =
4356 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4357
53cabad7
JB		 4358 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4359 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4360 return -EINVAL;
4361 params.p2p_ctwindow =
4362 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4363 if (params.p2p_ctwindow < 0)
4364 return -EINVAL;
4365 if (params.p2p_ctwindow != 0 &&
4366 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4367 return -EINVAL;
4368 }
4369
4370 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4371 u8 tmp;
4372
4373 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4374 return -EINVAL;
4375 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4376 if (tmp > 1)
4377 return -EINVAL;
4378 params.p2p_opp_ps = tmp;
4379 if (params.p2p_opp_ps &&
4380 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4381 return -EINVAL;
4382 }
4383
4c476991
JB		 4384 if (!rdev->ops->change_bss)
4385 return -EOPNOTSUPP;
9f1ba906 4386
074ac8df 4387 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4388 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4389 return -EOPNOTSUPP;
3b85875a 4390
e35e4d28 4391 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4392}
4393
b54452b0 4394static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4395 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4396 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4397 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4398 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4399 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4400 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4401};
4402
4403static int parse_reg_rule(struct nlattr *tb[],
4404 struct ieee80211_reg_rule *reg_rule)
4405{
4406 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4407 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4408
4409 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4410 return -EINVAL;
4411 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4412 return -EINVAL;
4413 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4414 return -EINVAL;
4415 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4416 return -EINVAL;
4417 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4418 return -EINVAL;
4419
4420 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4421
4422 freq_range->start_freq_khz =
4423 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4424 freq_range->end_freq_khz =
4425 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4426 freq_range->max_bandwidth_khz =
4427 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4428
4429 power_rule->max_eirp =
4430 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4431
4432 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4433 power_rule->max_antenna_gain =
4434 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4435
4436 return 0;
4437}
4438
4439static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4440{
4441 int r;
4442 char *data = NULL;
57b5ce07 4443 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4444
80778f18
LR		 4445 /*
4446 * You should only get this when cfg80211 hasn't yet initialized
4447 * completely when built-in to the kernel right between the time
4448 * window between nl80211_init() and regulatory_init(), if that is
4449 * even possible.
4450 */
458f4f9e 4451 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4452 return -EINPROGRESS;
80778f18 4453
fe33eb39
LR		 4454 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4455 return -EINVAL;
b2e1b302
LR		 4456
4457 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4458
57b5ce07
LR		 4459 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4460 user_reg_hint_type =
4461 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4462 else
4463 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4464
4465 switch (user_reg_hint_type) {
4466 case NL80211_USER_REG_HINT_USER:
4467 case NL80211_USER_REG_HINT_CELL_BASE:
4468 break;
4469 default:
4470 return -EINVAL;
4471 }
4472
4473 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4474
b2e1b302
LR		 4475 return r;
4476}
4477
24bdd9f4 4478static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4479 struct genl_info *info)
93da9cc1 4480{
4c476991 4481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4482 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4483 struct wireless_dev *wdev = dev->ieee80211_ptr;
4484 struct mesh_config cur_params;
4485 int err = 0;
93da9cc1 4486 void *hdr;
4487 struct nlattr *pinfoattr;
4488 struct sk_buff *msg;
4489
29cbe68c
JB		 4490 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4491 return -EOPNOTSUPP;
4492
24bdd9f4 4493 if (!rdev->ops->get_mesh_config)
4c476991 4494 return -EOPNOTSUPP;
f3f92586 4495
29cbe68c
JB		 4496 wdev_lock(wdev);
4497 /* If not connected, get default parameters */
4498 if (!wdev->mesh_id_len)
4499 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4500 else
e35e4d28 4501 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4502 wdev_unlock(wdev);
4503
93da9cc1 4504 if (err)
4c476991 4505 return err;
93da9cc1 4506
4507 /* Draw up a netlink message to send back */
fd2120ca 4508 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4509 if (!msg)
4510 return -ENOMEM;
15e47304 4511 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4512 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4513 if (!hdr)
efe1cf0c 4514 goto out;
24bdd9f4 4515 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4516 if (!pinfoattr)
4517 goto nla_put_failure;
9360ffd1
DM		 4518 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4519 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4520 cur_params.dot11MeshRetryTimeout) ||
4521 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4522 cur_params.dot11MeshConfirmTimeout) ||
4523 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4524 cur_params.dot11MeshHoldingTimeout) ||
4525 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4526 cur_params.dot11MeshMaxPeerLinks) ||
4527 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4528 cur_params.dot11MeshMaxRetries) ||
4529 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4530 cur_params.dot11MeshTTL) ||
4531 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4532 cur_params.element_ttl) ||
4533 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4534 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4535 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4536 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4537 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4538 cur_params.dot11MeshHWMPmaxPREQretries) ||
4539 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4540 cur_params.path_refresh_time) ||
4541 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4542 cur_params.min_discovery_timeout) ||
4543 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4544 cur_params.dot11MeshHWMPactivePathTimeout) ||
4545 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4546 cur_params.dot11MeshHWMPpreqMinInterval) ||
4547 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4548 cur_params.dot11MeshHWMPperrMinInterval) ||
4549 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4550 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4551 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4552 cur_params.dot11MeshHWMPRootMode) ||
4553 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4554 cur_params.dot11MeshHWMPRannInterval) ||
4555 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4556 cur_params.dot11MeshGateAnnouncementProtocol) ||
4557 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4558 cur_params.dot11MeshForwarding) ||
4559 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4560 cur_params.rssi_threshold) ||
4561 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4562 cur_params.ht_opmode) ||
4563 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4564 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4565 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4566 cur_params.dot11MeshHWMProotInterval) ||
4567 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4568 cur_params.dot11MeshHWMPconfirmationInterval) ||
4569 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4570 cur_params.power_mode) ||
4571 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4572 cur_params.dot11MeshAwakeWindowDuration))
9360ffd1 4573 goto nla_put_failure;
93da9cc1 4574 nla_nest_end(msg, pinfoattr);
4575 genlmsg_end(msg, hdr);
4c476991 4576 return genlmsg_reply(msg, info);
93da9cc1 4577
3b85875a 4578 nla_put_failure:
93da9cc1 4579 genlmsg_cancel(msg, hdr);
efe1cf0c 4580 out:
d080e275 4581 nlmsg_free(msg);
4c476991 4582 return -ENOBUFS;
93da9cc1 4583}
4584
b54452b0 4585static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4586 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4587 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4588 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4589 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4590 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4591 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4592 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4593 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4594 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4595 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4596 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4597 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4598 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4599 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4600 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4601 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4602 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4603 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4604 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4605 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4606 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4607 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4608 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4609 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4610 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4611 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4612 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
93da9cc1 4613};
4614
c80d545d
JC		 4615static const struct nla_policy
4616 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4617 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4618 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4619 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4620 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
bb2798d4 4621 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4622 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4623 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4624 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4625};
4626
24bdd9f4 4627static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4628 struct mesh_config *cfg,
4629 u32 *mask_out)
93da9cc1 4630{
93da9cc1 4631 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4632 u32 mask = 0;
93da9cc1 4633
ea54fba2
MP		 4634#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4635do { \
4636 if (tb[attr]) { \
4637 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4638 return -EINVAL; \
4639 cfg->param = fn(tb[attr]); \
4640 mask |= (1 << (attr - 1)); \
4641 } \
4642} while (0)
bd90fdcc
JB		 4643
4644
24bdd9f4 4645 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4646 return -EINVAL;
4647 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4648 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4649 nl80211_meshconf_params_policy))
93da9cc1 4650 return -EINVAL;
4651
93da9cc1 4652 /* This makes sure that there aren't more than 32 mesh config
4653 * parameters (otherwise our bitfield scheme would not work.) */
4654 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4655
4656 /* Fill in the params struct */
ea54fba2 4657 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4658 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4659 nla_get_u16);
ea54fba2 4660 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4661 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4662 nla_get_u16);
ea54fba2 4663 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4664 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4665 nla_get_u16);
ea54fba2 4666 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4667 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4668 nla_get_u16);
ea54fba2 4669 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4670 mask, NL80211_MESHCONF_MAX_RETRIES,
4671 nla_get_u8);
ea54fba2 4672 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4673 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4674 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4675 mask, NL80211_MESHCONF_ELEMENT_TTL,
4676 nla_get_u8);
ea54fba2 4677 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4678 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4679 nla_get_u8);
ea54fba2
MP		 4680 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4681 1, 255, mask,
a4f606ea
CYY		 4682 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4683 nla_get_u32);
ea54fba2 4684 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4685 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4686 nla_get_u8);
ea54fba2 4687 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4688 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4689 nla_get_u32);
ea54fba2 4690 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4691 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4692 nla_get_u16);
ea54fba2
MP		 4693 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4694 1, 65535, mask,
a4f606ea
CYY		 4695 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4696 nla_get_u32);
93da9cc1 4697 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4698 1, 65535, mask,
4699 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4700 nla_get_u16);
dca7e943 4701 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4702 1, 65535, mask,
4703 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4704 nla_get_u16);
93da9cc1 4705 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4706 dot11MeshHWMPnetDiameterTraversalTime,
4707 1, 65535, mask,
a4f606ea
CYY		 4708 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4709 nla_get_u16);
ea54fba2
MP		 4710 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4711 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4712 nla_get_u8);
4713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4714 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4715 nla_get_u16);
63c5723b 4716 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4717 dot11MeshGateAnnouncementProtocol, 0, 1,
4718 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4719 nla_get_u8);
ea54fba2 4720 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4721 mask, NL80211_MESHCONF_FORWARDING,
4722 nla_get_u8);
ea54fba2 4723 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4724 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4725 nla_get_u32);
ea54fba2 4726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4727 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4728 nla_get_u16);
4729 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4730 1, 65535, mask,
ac1073a6
CYY		 4731 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4732 nla_get_u32);
ea54fba2 4733 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4734 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4735 nla_get_u16);
4736 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4737 dot11MeshHWMPconfirmationInterval,
4738 1, 65535, mask,
728b19e5 4739 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4740 nla_get_u16);
3b1c5a53
MP		 4741 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4742 NL80211_MESH_POWER_ACTIVE,
4743 NL80211_MESH_POWER_MAX,
4744 mask, NL80211_MESHCONF_POWER_MODE,
4745 nla_get_u32);
4746 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4747 0, 65535, mask,
4748 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
bd90fdcc
JB		 4749 if (mask_out)
4750 *mask_out = mask;
c80d545d 4751
bd90fdcc
JB		 4752 return 0;
4753
4754#undef FILL_IN_MESH_PARAM_IF_SET
4755}
4756
c80d545d
JC		 4757static int nl80211_parse_mesh_setup(struct genl_info *info,
4758 struct mesh_setup *setup)
4759{
bb2798d4 4760 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4761 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4762
4763 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4764 return -EINVAL;
4765 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4766 info->attrs[NL80211_ATTR_MESH_SETUP],
4767 nl80211_mesh_setup_params_policy))
4768 return -EINVAL;
4769
d299a1f2
JC		 4770 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4771 setup->sync_method =
4772 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4773 IEEE80211_SYNC_METHOD_VENDOR :
4774 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4775
c80d545d
JC		 4776 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4777 setup->path_sel_proto =
4778 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4779 IEEE80211_PATH_PROTOCOL_VENDOR :
4780 IEEE80211_PATH_PROTOCOL_HWMP;
4781
4782 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4783 setup->path_metric =
4784 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4785 IEEE80211_PATH_METRIC_VENDOR :
4786 IEEE80211_PATH_METRIC_AIRTIME;
4787
581a8b0f
JC		 4788
4789 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4790 struct nlattr *ieattr =
581a8b0f 4791 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4792 if (!is_valid_ie_attr(ieattr))
4793 return -EINVAL;
581a8b0f
JC		 4794 setup->ie = nla_data(ieattr);
4795 setup->ie_len = nla_len(ieattr);
c80d545d 4796 }
bb2798d4
TP		 4797 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4798 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4799 return -EINVAL;
4800 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 4801 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4802 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 4803 if (setup->is_secure)
4804 setup->user_mpm = true;
c80d545d
JC		 4805
4806 return 0;
4807}
4808
24bdd9f4 4809static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4810 struct genl_info *info)
bd90fdcc
JB		 4811{
4812 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4813 struct net_device *dev = info->user_ptr[1];
29cbe68c 4814 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4815 struct mesh_config cfg;
4816 u32 mask;
4817 int err;
4818
29cbe68c
JB		 4819 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4820 return -EOPNOTSUPP;
4821
24bdd9f4 4822 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4823 return -EOPNOTSUPP;
4824
24bdd9f4 4825 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4826 if (err)
4827 return err;
4828
29cbe68c
JB		 4829 wdev_lock(wdev);
4830 if (!wdev->mesh_id_len)
4831 err = -ENOLINK;
4832
4833 if (!err)
e35e4d28 4834 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4835
4836 wdev_unlock(wdev);
4837
4838 return err;
93da9cc1 4839}
4840
f130347c
LR		 4841static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4842{
458f4f9e 4843 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4844 struct sk_buff *msg;
4845 void *hdr = NULL;
4846 struct nlattr *nl_reg_rules;
4847 unsigned int i;
4848 int err = -EINVAL;
4849
a1794390 4850 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4851
4852 if (!cfg80211_regdomain)
4853 goto out;
4854
fd2120ca 4855 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4856 if (!msg) {
4857 err = -ENOBUFS;
4858 goto out;
4859 }
4860
15e47304 4861 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4862 NL80211_CMD_GET_REG);
4863 if (!hdr)
efe1cf0c 4864 goto put_failure;
f130347c 4865
57b5ce07
LR		 4866 if (reg_last_request_cell_base() &&
4867 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4868 NL80211_USER_REG_HINT_CELL_BASE))
4869 goto nla_put_failure;
4870
458f4f9e
JB		 4871 rcu_read_lock();
4872 regdom = rcu_dereference(cfg80211_regdomain);
4873
4874 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4875 (regdom->dfs_region &&
4876 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4877 goto nla_put_failure_rcu;
4878
f130347c
LR		 4879 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4880 if (!nl_reg_rules)
458f4f9e 4881 goto nla_put_failure_rcu;
f130347c 4882
458f4f9e 4883 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4884 struct nlattr *nl_reg_rule;
4885 const struct ieee80211_reg_rule *reg_rule;
4886 const struct ieee80211_freq_range *freq_range;
4887 const struct ieee80211_power_rule *power_rule;
4888
458f4f9e 4889 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4890 freq_range = &reg_rule->freq_range;
4891 power_rule = &reg_rule->power_rule;
4892
4893 nl_reg_rule = nla_nest_start(msg, i);
4894 if (!nl_reg_rule)
458f4f9e 4895 goto nla_put_failure_rcu;
f130347c 4896
9360ffd1
DM		 4897 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4898 reg_rule->flags) ||
4899 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4900 freq_range->start_freq_khz) ||
4901 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4902 freq_range->end_freq_khz) ||
4903 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4904 freq_range->max_bandwidth_khz) ||
4905 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4906 power_rule->max_antenna_gain) ||
4907 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4908 power_rule->max_eirp))
458f4f9e 4909 goto nla_put_failure_rcu;
f130347c
LR		 4910
4911 nla_nest_end(msg, nl_reg_rule);
4912 }
458f4f9e 4913 rcu_read_unlock();
f130347c
LR		 4914
4915 nla_nest_end(msg, nl_reg_rules);
4916
4917 genlmsg_end(msg, hdr);
134e6375 4918 err = genlmsg_reply(msg, info);
f130347c
LR		 4919 goto out;
4920
458f4f9e
JB		 4921nla_put_failure_rcu:
4922 rcu_read_unlock();
f130347c
LR		 4923nla_put_failure:
4924 genlmsg_cancel(msg, hdr);
efe1cf0c 4925put_failure:
d080e275 4926 nlmsg_free(msg);
f130347c
LR		 4927 err = -EMSGSIZE;
4928out:
a1794390 4929 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4930 return err;
4931}
4932
b2e1b302
LR		 4933static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4934{
4935 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4936 struct nlattr *nl_reg_rule;
4937 char *alpha2 = NULL;
4938 int rem_reg_rules = 0, r = 0;
4939 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4940 u8 dfs_region = 0;
b2e1b302
LR		 4941 struct ieee80211_regdomain *rd = NULL;
4942
4943 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4944 return -EINVAL;
4945
4946 if (!info->attrs[NL80211_ATTR_REG_RULES])
4947 return -EINVAL;
4948
4949 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4950
8b60b078
LR		 4951 if (info->attrs[NL80211_ATTR_DFS_REGION])
4952 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4953
b2e1b302 4954 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4955 rem_reg_rules) {
b2e1b302
LR		 4956 num_rules++;
4957 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4958 return -EINVAL;
b2e1b302
LR		 4959 }
4960
b2e1b302 4961 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4962 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4963
4964 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4965 if (!rd)
4966 return -ENOMEM;
b2e1b302
LR		 4967
4968 rd->n_reg_rules = num_rules;
4969 rd->alpha2[0] = alpha2[0];
4970 rd->alpha2[1] = alpha2[1];
4971
8b60b078
LR		 4972 /*
4973 * Disable DFS master mode if the DFS region was
4974 * not supported or known on this kernel.
4975 */
4976 if (reg_supported_dfs_region(dfs_region))
4977 rd->dfs_region = dfs_region;
4978
b2e1b302 4979 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4980 rem_reg_rules) {
b2e1b302 4981 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4982 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4983 reg_rule_policy);
b2e1b302
LR		 4984 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4985 if (r)
4986 goto bad_reg;
4987
4988 rule_idx++;
4989
d0e18f83
LR		 4990 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4991 r = -EINVAL;
b2e1b302 4992 goto bad_reg;
d0e18f83 4993 }
b2e1b302
LR		 4994 }
4995
6913b49a
JB		 4996 mutex_lock(&cfg80211_mutex);
4997
b2e1b302 4998 r = set_regdom(rd);
6913b49a 4999 /* set_regdom took ownership */
1a919318 5000 rd = NULL;
6913b49a 5001 mutex_unlock(&cfg80211_mutex);
b2e1b302 5002
d2372b31 5003 bad_reg:
b2e1b302 5004 kfree(rd);
d0e18f83 5005 return r;
b2e1b302
LR		 5006}
5007
83f5e2cf
JB		 5008static int validate_scan_freqs(struct nlattr *freqs)
5009{
5010 struct nlattr *attr1, *attr2;
5011 int n_channels = 0, tmp1, tmp2;
5012
5013 nla_for_each_nested(attr1, freqs, tmp1) {
5014 n_channels++;
5015 /*
5016 * Some hardware has a limited channel list for
5017 * scanning, and it is pretty much nonsensical
5018 * to scan for a channel twice, so disallow that
5019 * and don't require drivers to check that the
5020 * channel list they get isn't longer than what
5021 * they can scan, as long as they can scan all
5022 * the channels they registered at once.
5023 */
5024 nla_for_each_nested(attr2, freqs, tmp2)
5025 if (attr1 != attr2 &&
5026 nla_get_u32(attr1) == nla_get_u32(attr2))
5027 return 0;
5028 }
5029
5030 return n_channels;
5031}
5032
2a519311
JB		 5033static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5034{
4c476991 5035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5036 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5037 struct cfg80211_scan_request *request;
2a519311
JB		 5038 struct nlattr *attr;
5039 struct wiphy *wiphy;
83f5e2cf 5040 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5041 size_t ie_len;
2a519311 5042
f4a11bb0
JB		 5043 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5044 return -EINVAL;
5045
79c97e97 5046 wiphy = &rdev->wiphy;
2a519311 5047
4c476991
JB		 5048 if (!rdev->ops->scan)
5049 return -EOPNOTSUPP;
2a519311 5050
4c476991
JB		 5051 if (rdev->scan_req)
5052 return -EBUSY;
2a519311
JB		 5053
5054 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5055 n_channels = validate_scan_freqs(
5056 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 5057 if (!n_channels)
5058 return -EINVAL;
2a519311 5059 } else {
34850ab2 5060 enum ieee80211_band band;
83f5e2cf
JB		 5061 n_channels = 0;
5062
2a519311
JB		 5063 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5064 if (wiphy->bands[band])
5065 n_channels += wiphy->bands[band]->n_channels;
5066 }
5067
5068 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5069 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5070 n_ssids++;
5071
4c476991
JB		 5072 if (n_ssids > wiphy->max_scan_ssids)
5073 return -EINVAL;
2a519311 5074
70692ad2
JM		 5075 if (info->attrs[NL80211_ATTR_IE])
5076 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5077 else
5078 ie_len = 0;
5079
4c476991
JB		 5080 if (ie_len > wiphy->max_scan_ie_len)
5081 return -EINVAL;
18a83659 5082
2a519311 5083 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5084 + sizeof(*request->ssids) * n_ssids
5085 + sizeof(*request->channels) * n_channels
70692ad2 5086 + ie_len, GFP_KERNEL);
4c476991
JB		 5087 if (!request)
5088 return -ENOMEM;
2a519311 5089
2a519311 5090 if (n_ssids)
5ba63533 5091 request->ssids = (void *)&request->channels[n_channels];
2a519311 5092 request->n_ssids = n_ssids;
70692ad2
JM		 5093 if (ie_len) {
5094 if (request->ssids)
5095 request->ie = (void *)(request->ssids + n_ssids);
5096 else
5097 request->ie = (void *)(request->channels + n_channels);
5098 }
2a519311 5099
584991dc 5100 i = 0;
2a519311
JB		 5101 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5102 /* user specified, bail out if channel not found */
2a519311 5103 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5104 struct ieee80211_channel *chan;
5105
5106 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5107
5108 if (!chan) {
2a519311
JB		 5109 err = -EINVAL;
5110 goto out_free;
5111 }
584991dc
JB		 5112
5113 /* ignore disabled channels */
5114 if (chan->flags & IEEE80211_CHAN_DISABLED)
5115 continue;
5116
5117 request->channels[i] = chan;
2a519311
JB		 5118 i++;
5119 }
5120 } else {
34850ab2
JB		 5121 enum ieee80211_band band;
5122
2a519311 5123 /* all channels */
2a519311
JB		 5124 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5125 int j;
5126 if (!wiphy->bands[band])
5127 continue;
5128 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5129 struct ieee80211_channel *chan;
5130
5131 chan = &wiphy->bands[band]->channels[j];
5132
5133 if (chan->flags & IEEE80211_CHAN_DISABLED)
5134 continue;
5135
5136 request->channels[i] = chan;
2a519311
JB		 5137 i++;
5138 }
5139 }
5140 }
5141
584991dc
JB		 5142 if (!i) {
5143 err = -EINVAL;
5144 goto out_free;
5145 }
5146
5147 request->n_channels = i;
5148
2a519311
JB		 5149 i = 0;
5150 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5151 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5152 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5153 err = -EINVAL;
5154 goto out_free;
5155 }
57a27e1d 5156 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5157 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5158 i++;
5159 }
5160 }
5161
70692ad2
JM		 5162 if (info->attrs[NL80211_ATTR_IE]) {
5163 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5164 memcpy((void *)request->ie,
5165 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5166 request->ie_len);
5167 }
5168
34850ab2 5169 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5170 if (wiphy->bands[i])
5171 request->rates[i] =
5172 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5173
5174 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5175 nla_for_each_nested(attr,
5176 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5177 tmp) {
5178 enum ieee80211_band band = nla_type(attr);
5179
84404623 5180 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5181 err = -EINVAL;
5182 goto out_free;
5183 }
5184 err = ieee80211_get_ratemask(wiphy->bands[band],
5185 nla_data(attr),
5186 nla_len(attr),
5187 &request->rates[band]);
5188 if (err)
5189 goto out_free;
5190 }
5191 }
5192
46856bbf 5193 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5194 request->flags = nla_get_u32(
5195 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5196 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5197 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5198 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5199 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5200 err = -EOPNOTSUPP;
5201 goto out_free;
5202 }
5203 }
ed473771 5204
e9f935e3
RM		 5205 request->no_cck =
5206 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5207
fd014284 5208 request->wdev = wdev;
79c97e97 5209 request->wiphy = &rdev->wiphy;
15d6030b 5210 request->scan_start = jiffies;
2a519311 5211
79c97e97 5212 rdev->scan_req = request;
e35e4d28 5213 err = rdev_scan(rdev, request);
2a519311 5214
463d0183 5215 if (!err) {
fd014284
JB		 5216 nl80211_send_scan_start(rdev, wdev);
5217 if (wdev->netdev)
5218 dev_hold(wdev->netdev);
4c476991 5219 } else {
2a519311 5220 out_free:
79c97e97 5221 rdev->scan_req = NULL;
2a519311
JB		 5222 kfree(request);
5223 }
3b85875a 5224
2a519311
JB		 5225 return err;
5226}
5227
807f8a8c
LC		 5228static int nl80211_start_sched_scan(struct sk_buff *skb,
5229 struct genl_info *info)
5230{
5231 struct cfg80211_sched_scan_request *request;
5232 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5233 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5234 struct nlattr *attr;
5235 struct wiphy *wiphy;
a1f1c21c 5236 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5237 u32 interval;
807f8a8c
LC		 5238 enum ieee80211_band band;
5239 size_t ie_len;
a1f1c21c 5240 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5241
5242 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5243 !rdev->ops->sched_scan_start)
5244 return -EOPNOTSUPP;
5245
5246 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5247 return -EINVAL;
5248
bbe6ad6d
LC		 5249 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5250 return -EINVAL;
5251
5252 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5253 if (interval == 0)
5254 return -EINVAL;
5255
807f8a8c
LC		 5256 wiphy = &rdev->wiphy;
5257
5258 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5259 n_channels = validate_scan_freqs(
5260 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5261 if (!n_channels)
5262 return -EINVAL;
5263 } else {
5264 n_channels = 0;
5265
5266 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5267 if (wiphy->bands[band])
5268 n_channels += wiphy->bands[band]->n_channels;
5269 }
5270
5271 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5272 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5273 tmp)
5274 n_ssids++;
5275
93b6aa69 5276 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5277 return -EINVAL;
5278
a1f1c21c
LC		 5279 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5280 nla_for_each_nested(attr,
5281 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5282 tmp)
5283 n_match_sets++;
5284
5285 if (n_match_sets > wiphy->max_match_sets)
5286 return -EINVAL;
5287
807f8a8c
LC		 5288 if (info->attrs[NL80211_ATTR_IE])
5289 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5290 else
5291 ie_len = 0;
5292
5a865bad 5293 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5294 return -EINVAL;
5295
c10841ca
LC		 5296 mutex_lock(&rdev->sched_scan_mtx);
5297
5298 if (rdev->sched_scan_req) {
5299 err = -EINPROGRESS;
5300 goto out;
5301 }
5302
807f8a8c 5303 request = kzalloc(sizeof(*request)
a2cd43c5 5304 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5305 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5306 + sizeof(*request->channels) * n_channels
807f8a8c 5307 + ie_len, GFP_KERNEL);
c10841ca
LC		 5308 if (!request) {
5309 err = -ENOMEM;
5310 goto out;
5311 }
807f8a8c
LC		 5312
5313 if (n_ssids)
5314 request->ssids = (void *)&request->channels[n_channels];
5315 request->n_ssids = n_ssids;
5316 if (ie_len) {
5317 if (request->ssids)
5318 request->ie = (void *)(request->ssids + n_ssids);
5319 else
5320 request->ie = (void *)(request->channels + n_channels);
5321 }
5322
a1f1c21c
LC		 5323 if (n_match_sets) {
5324 if (request->ie)
5325 request->match_sets = (void *)(request->ie + ie_len);
5326 else if (request->ssids)
5327 request->match_sets =
5328 (void *)(request->ssids + n_ssids);
5329 else
5330 request->match_sets =
5331 (void *)(request->channels + n_channels);
5332 }
5333 request->n_match_sets = n_match_sets;
5334
807f8a8c
LC		 5335 i = 0;
5336 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5337 /* user specified, bail out if channel not found */
5338 nla_for_each_nested(attr,
5339 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5340 tmp) {
5341 struct ieee80211_channel *chan;
5342
5343 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5344
5345 if (!chan) {
5346 err = -EINVAL;
5347 goto out_free;
5348 }
5349
5350 /* ignore disabled channels */
5351 if (chan->flags & IEEE80211_CHAN_DISABLED)
5352 continue;
5353
5354 request->channels[i] = chan;
5355 i++;
5356 }
5357 } else {
5358 /* all channels */
5359 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5360 int j;
5361 if (!wiphy->bands[band])
5362 continue;
5363 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5364 struct ieee80211_channel *chan;
5365
5366 chan = &wiphy->bands[band]->channels[j];
5367
5368 if (chan->flags & IEEE80211_CHAN_DISABLED)
5369 continue;
5370
5371 request->channels[i] = chan;
5372 i++;
5373 }
5374 }
5375 }
5376
5377 if (!i) {
5378 err = -EINVAL;
5379 goto out_free;
5380 }
5381
5382 request->n_channels = i;
5383
5384 i = 0;
5385 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5386 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5387 tmp) {
57a27e1d 5388 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5389 err = -EINVAL;
5390 goto out_free;
5391 }
57a27e1d 5392 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5393 memcpy(request->ssids[i].ssid, nla_data(attr),
5394 nla_len(attr));
807f8a8c
LC		 5395 i++;
5396 }
5397 }
5398
a1f1c21c
LC		 5399 i = 0;
5400 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5401 nla_for_each_nested(attr,
5402 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5403 tmp) {
88e920b4 5404 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5405
5406 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5407 nla_data(attr), nla_len(attr),
5408 nl80211_match_policy);
4a4ab0d7 5409 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5410 if (ssid) {
5411 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5412 err = -EINVAL;
5413 goto out_free;
5414 }
5415 memcpy(request->match_sets[i].ssid.ssid,
5416 nla_data(ssid), nla_len(ssid));
5417 request->match_sets[i].ssid.ssid_len =
5418 nla_len(ssid);
5419 }
88e920b4
TP		 5420 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5421 if (rssi)
5422 request->rssi_thold = nla_get_u32(rssi);
5423 else
5424 request->rssi_thold =
5425 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5426 i++;
5427 }
5428 }
5429
807f8a8c
LC		 5430 if (info->attrs[NL80211_ATTR_IE]) {
5431 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5432 memcpy((void *)request->ie,
5433 nla_data(info->attrs[NL80211_ATTR_IE]),
5434 request->ie_len);
5435 }
5436
46856bbf 5437 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5438 request->flags = nla_get_u32(
5439 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5440 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5441 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5442 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5443 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5444 err = -EOPNOTSUPP;
5445 goto out_free;
5446 }
5447 }
ed473771 5448
807f8a8c
LC		 5449 request->dev = dev;
5450 request->wiphy = &rdev->wiphy;
bbe6ad6d 5451 request->interval = interval;
15d6030b 5452 request->scan_start = jiffies;
807f8a8c 5453
e35e4d28 5454 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5455 if (!err) {
5456 rdev->sched_scan_req = request;
5457 nl80211_send_sched_scan(rdev, dev,
5458 NL80211_CMD_START_SCHED_SCAN);
5459 goto out;
5460 }
5461
5462out_free:
5463 kfree(request);
5464out:
c10841ca 5465 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 5466 return err;
5467}
5468
5469static int nl80211_stop_sched_scan(struct sk_buff *skb,
5470 struct genl_info *info)
5471{
5472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 5473 int err;
807f8a8c
LC		 5474
5475 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5476 !rdev->ops->sched_scan_stop)
5477 return -EOPNOTSUPP;
5478
c10841ca
LC		 5479 mutex_lock(&rdev->sched_scan_mtx);
5480 err = __cfg80211_stop_sched_scan(rdev, false);
5481 mutex_unlock(&rdev->sched_scan_mtx);
5482
5483 return err;
807f8a8c
LC		 5484}
5485
04f39047
SW		 5486static int nl80211_start_radar_detection(struct sk_buff *skb,
5487 struct genl_info *info)
5488{
5489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5490 struct net_device *dev = info->user_ptr[1];
5491 struct wireless_dev *wdev = dev->ieee80211_ptr;
5492 struct cfg80211_chan_def chandef;
5493 int err;
5494
5495 err = nl80211_parse_chandef(rdev, info, &chandef);
5496 if (err)
5497 return err;
5498
5499 if (wdev->cac_started)
5500 return -EBUSY;
5501
5502 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5503 if (err < 0)
5504 return err;
5505
5506 if (err == 0)
5507 return -EINVAL;
5508
5509 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5510 return -EINVAL;
5511
5512 if (!rdev->ops->start_radar_detection)
5513 return -EOPNOTSUPP;
5514
5515 mutex_lock(&rdev->devlist_mtx);
5516 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5517 chandef.chan, CHAN_MODE_SHARED,
5518 BIT(chandef.width));
5519 if (err)
5520 goto err_locked;
5521
5522 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5523 if (!err) {
5524 wdev->channel = chandef.chan;
5525 wdev->cac_started = true;
5526 wdev->cac_start_time = jiffies;
5527 }
5528err_locked:
5529 mutex_unlock(&rdev->devlist_mtx);
5530
5531 return err;
5532}
5533
9720bb3a
JB		 5534static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5535 u32 seq, int flags,
2a519311 5536 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5537 struct wireless_dev *wdev,
5538 struct cfg80211_internal_bss *intbss)
2a519311 5539{
48ab905d 5540 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5541 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5542 void *hdr;
5543 struct nlattr *bss;
8cef2c9d 5544 bool tsf = false;
48ab905d
JB		 5545
5546 ASSERT_WDEV_LOCK(wdev);
2a519311 5547
15e47304 5548 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5549 NL80211_CMD_NEW_SCAN_RESULTS);
5550 if (!hdr)
5551 return -1;
5552
9720bb3a
JB		 5553 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5554
9360ffd1
DM		 5555 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
5556 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5557 goto nla_put_failure;
2a519311
JB		 5558
5559 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5560 if (!bss)
5561 goto nla_put_failure;
9360ffd1 5562 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5563 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5564 goto nla_put_failure;
9caf0364
JB		 5565
5566 rcu_read_lock();
5567 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5568 if (ies) {
5569 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5570 goto fail_unlock_rcu;
5571 tsf = true;
5572 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5573 ies->len, ies->data))
5574 goto fail_unlock_rcu;
9caf0364
JB		 5575 }
5576 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5577 if (ies) {
5578 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5579 goto fail_unlock_rcu;
5580 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5581 ies->len, ies->data))
5582 goto fail_unlock_rcu;
9caf0364
JB		 5583 }
5584 rcu_read_unlock();
5585
9360ffd1
DM		 5586 if (res->beacon_interval &&
5587 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5588 goto nla_put_failure;
5589 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5590 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5591 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5592 jiffies_to_msecs(jiffies - intbss->ts)))
5593 goto nla_put_failure;
2a519311 5594
77965c97 5595 switch (rdev->wiphy.signal_type) {
2a519311 5596 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5597 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5598 goto nla_put_failure;
2a519311
JB		 5599 break;
5600 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5601 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5602 goto nla_put_failure;
2a519311
JB		 5603 break;
5604 default:
5605 break;
5606 }
5607
48ab905d 5608 switch (wdev->iftype) {
074ac8df 5609 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5610 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5611 if (intbss == wdev->current_bss &&
5612 nla_put_u32(msg, NL80211_BSS_STATUS,
5613 NL80211_BSS_STATUS_ASSOCIATED))
5614 goto nla_put_failure;
48ab905d
JB		 5615 break;
5616 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5617 if (intbss == wdev->current_bss &&
5618 nla_put_u32(msg, NL80211_BSS_STATUS,
5619 NL80211_BSS_STATUS_IBSS_JOINED))
5620 goto nla_put_failure;
48ab905d
JB		 5621 break;
5622 default:
5623 break;
5624 }
5625
2a519311
JB		 5626 nla_nest_end(msg, bss);
5627
5628 return genlmsg_end(msg, hdr);
5629
8cef2c9d
JB		 5630 fail_unlock_rcu:
5631 rcu_read_unlock();
2a519311
JB		 5632 nla_put_failure:
5633 genlmsg_cancel(msg, hdr);
5634 return -EMSGSIZE;
5635}
5636
5637static int nl80211_dump_scan(struct sk_buff *skb,
5638 struct netlink_callback *cb)
5639{
48ab905d
JB		 5640 struct cfg80211_registered_device *rdev;
5641 struct net_device *dev;
2a519311 5642 struct cfg80211_internal_bss *scan;
48ab905d 5643 struct wireless_dev *wdev;
2a519311
JB		 5644 int start = cb->args[1], idx = 0;
5645 int err;
5646
67748893
JB		 5647 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
5648 if (err)
5649 return err;
2a519311 5650
48ab905d 5651 wdev = dev->ieee80211_ptr;
2a519311 5652
48ab905d
JB		 5653 wdev_lock(wdev);
5654 spin_lock_bh(&rdev->bss_lock);
5655 cfg80211_bss_expire(rdev);
5656
9720bb3a
JB		 5657 cb->seq = rdev->bss_generation;
5658
48ab905d 5659 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5660 if (++idx <= start)
5661 continue;
9720bb3a 5662 if (nl80211_send_bss(skb, cb,
2a519311 5663 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5664 rdev, wdev, scan) < 0) {
2a519311 5665 idx--;
67748893 5666 break;
2a519311
JB		 5667 }
5668 }
5669
48ab905d
JB		 5670 spin_unlock_bh(&rdev->bss_lock);
5671 wdev_unlock(wdev);
2a519311
JB		 5672
5673 cb->args[1] = idx;
67748893 5674 nl80211_finish_netdev_dump(rdev);
2a519311 5675
67748893 5676 return skb->len;
2a519311
JB		 5677}
5678
15e47304 5679static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5680 int flags, struct net_device *dev,
5681 struct survey_info *survey)
5682{
5683 void *hdr;
5684 struct nlattr *infoattr;
5685
15e47304 5686 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5687 NL80211_CMD_NEW_SURVEY_RESULTS);
5688 if (!hdr)
5689 return -ENOMEM;
5690
9360ffd1
DM		 5691 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5692 goto nla_put_failure;
61fa713c
HS		 5693
5694 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5695 if (!infoattr)
5696 goto nla_put_failure;
5697
9360ffd1
DM		 5698 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5699 survey->channel->center_freq))
5700 goto nla_put_failure;
5701
5702 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5703 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5704 goto nla_put_failure;
5705 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5706 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5707 goto nla_put_failure;
5708 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5709 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5710 survey->channel_time))
5711 goto nla_put_failure;
5712 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5713 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5714 survey->channel_time_busy))
5715 goto nla_put_failure;
5716 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5717 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5718 survey->channel_time_ext_busy))
5719 goto nla_put_failure;
5720 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5721 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5722 survey->channel_time_rx))
5723 goto nla_put_failure;
5724 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5725 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5726 survey->channel_time_tx))
5727 goto nla_put_failure;
61fa713c
HS		 5728
5729 nla_nest_end(msg, infoattr);
5730
5731 return genlmsg_end(msg, hdr);
5732
5733 nla_put_failure:
5734 genlmsg_cancel(msg, hdr);
5735 return -EMSGSIZE;
5736}
5737
5738static int nl80211_dump_survey(struct sk_buff *skb,
5739 struct netlink_callback *cb)
5740{
5741 struct survey_info survey;
5742 struct cfg80211_registered_device *dev;
5743 struct net_device *netdev;
61fa713c
HS		 5744 int survey_idx = cb->args[1];
5745 int res;
5746
67748893
JB		 5747 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5748 if (res)
5749 return res;
61fa713c
HS		 5750
5751 if (!dev->ops->dump_survey) {
5752 res = -EOPNOTSUPP;
5753 goto out_err;
5754 }
5755
5756 while (1) {
180cdc79
LR		 5757 struct ieee80211_channel *chan;
5758
e35e4d28 5759 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
61fa713c
HS		 5760 if (res == -ENOENT)
5761 break;
5762 if (res)
5763 goto out_err;
5764
180cdc79
LR		 5765 /* Survey without a channel doesn't make sense */
5766 if (!survey.channel) {
5767 res = -EINVAL;
5768 goto out;
5769 }
5770
5771 chan = ieee80211_get_channel(&dev->wiphy,
5772 survey.channel->center_freq);
5773 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5774 survey_idx++;
5775 continue;
5776 }
5777
61fa713c 5778 if (nl80211_send_survey(skb,
15e47304 5779 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 5780 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5781 netdev,
5782 &survey) < 0)
5783 goto out;
5784 survey_idx++;
5785 }
5786
5787 out:
5788 cb->args[1] = survey_idx;
5789 res = skb->len;
5790 out_err:
67748893 5791 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 5792 return res;
5793}
5794
b23aa676
SO		 5795static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5796{
5797 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5798 NL80211_WPA_VERSION_2));
5799}
5800
636a5d36
JM		 5801static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5802{
4c476991
JB		 5803 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5804 struct net_device *dev = info->user_ptr[1];
19957bb3 5805 struct ieee80211_channel *chan;
e39e5b5e
JM		 5806 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5807 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5808 enum nl80211_auth_type auth_type;
fffd0934 5809 struct key_parse key;
d5cdfacb 5810 bool local_state_change;
636a5d36 5811
f4a11bb0
JB		 5812 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5813 return -EINVAL;
5814
5815 if (!info->attrs[NL80211_ATTR_MAC])
5816 return -EINVAL;
5817
1778092e
JM		 5818 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5819 return -EINVAL;
5820
19957bb3
JB		 5821 if (!info->attrs[NL80211_ATTR_SSID])
5822 return -EINVAL;
5823
5824 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5825 return -EINVAL;
5826
fffd0934
JB		 5827 err = nl80211_parse_key(info, &key);
5828 if (err)
5829 return err;
5830
5831 if (key.idx >= 0) {
e31b8213
JB		 5832 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5833 return -EINVAL;
fffd0934
JB		 5834 if (!key.p.key || !key.p.key_len)
5835 return -EINVAL;
5836 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5837 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5838 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5839 key.p.key_len != WLAN_KEY_LEN_WEP104))
5840 return -EINVAL;
5841 if (key.idx > 4)
5842 return -EINVAL;
5843 } else {
5844 key.p.key_len = 0;
5845 key.p.key = NULL;
5846 }
5847
afea0b7a
JB		 5848 if (key.idx >= 0) {
5849 int i;
5850 bool ok = false;
5851 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5852 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5853 ok = true;
5854 break;
5855 }
5856 }
4c476991
JB		 5857 if (!ok)
5858 return -EINVAL;
afea0b7a
JB		 5859 }
5860
4c476991
JB		 5861 if (!rdev->ops->auth)
5862 return -EOPNOTSUPP;
636a5d36 5863
074ac8df 5864 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5865 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5866 return -EOPNOTSUPP;
eec60b03 5867
19957bb3 5868 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5869 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5870 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5871 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5872 return -EINVAL;
636a5d36 5873
19957bb3
JB		 5874 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5875 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5876
5877 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5878 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5879 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5880 }
5881
19957bb3 5882 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5883 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5884 return -EINVAL;
636a5d36 5885
e39e5b5e
JM		 5886 if (auth_type == NL80211_AUTHTYPE_SAE &&
5887 !info->attrs[NL80211_ATTR_SAE_DATA])
5888 return -EINVAL;
5889
5890 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5891 if (auth_type != NL80211_AUTHTYPE_SAE)
5892 return -EINVAL;
5893 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5894 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5895 /* need to include at least Auth Transaction and Status Code */
5896 if (sae_data_len < 4)
5897 return -EINVAL;
5898 }
5899
d5cdfacb
JM		 5900 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5901
95de817b
JB		 5902 /*
5903 * Since we no longer track auth state, ignore
5904 * requests to only change local state.
5905 */
5906 if (local_state_change)
5907 return 0;
5908
4c476991
JB		 5909 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5910 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5911 key.p.key, key.p.key_len, key.idx,
5912 sae_data, sae_data_len);
636a5d36
JM		 5913}
5914
c0692b8f
JB		 5915static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5916 struct genl_info *info,
3dc27d25
JB		 5917 struct cfg80211_crypto_settings *settings,
5918 int cipher_limit)
b23aa676 5919{
c0b2bbd8
JB		 5920 memset(settings, 0, sizeof(*settings));
5921
b23aa676
SO		 5922 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5923
c0692b8f
JB		 5924 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5925 u16 proto;
5926 proto = nla_get_u16(
5927 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5928 settings->control_port_ethertype = cpu_to_be16(proto);
5929 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5930 proto != ETH_P_PAE)
5931 return -EINVAL;
5932 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5933 settings->control_port_no_encrypt = true;
5934 } else
5935 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5936
b23aa676
SO		 5937 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5938 void *data;
5939 int len, i;
5940
5941 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5942 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5943 settings->n_ciphers_pairwise = len / sizeof(u32);
5944
5945 if (len % sizeof(u32))
5946 return -EINVAL;
5947
3dc27d25 5948 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5949 return -EINVAL;
5950
5951 memcpy(settings->ciphers_pairwise, data, len);
5952
5953 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5954 if (!cfg80211_supported_cipher_suite(
5955 &rdev->wiphy,
b23aa676
SO		 5956 settings->ciphers_pairwise[i]))
5957 return -EINVAL;
5958 }
5959
5960 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5961 settings->cipher_group =
5962 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5963 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5964 settings->cipher_group))
b23aa676
SO		 5965 return -EINVAL;
5966 }
5967
5968 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5969 settings->wpa_versions =
5970 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5971 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5972 return -EINVAL;
5973 }
5974
5975 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5976 void *data;
6d30240e 5977 int len;
b23aa676
SO		 5978
5979 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5980 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5981 settings->n_akm_suites = len / sizeof(u32);
5982
5983 if (len % sizeof(u32))
5984 return -EINVAL;
5985
1b9ca027
JM		 5986 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5987 return -EINVAL;
5988
b23aa676 5989 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5990 }
5991
5992 return 0;
5993}
5994
636a5d36
JM		 5995static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5996{
4c476991
JB		 5997 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5998 struct net_device *dev = info->user_ptr[1];
f444de05 5999 struct ieee80211_channel *chan;
f62fab73
JB		 6000 struct cfg80211_assoc_request req = {};
6001 const u8 *bssid, *ssid;
6002 int err, ssid_len = 0;
636a5d36 6003
f4a11bb0
JB		 6004 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6005 return -EINVAL;
6006
6007 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6008 !info->attrs[NL80211_ATTR_SSID] ||
6009 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6010 return -EINVAL;
6011
4c476991
JB		 6012 if (!rdev->ops->assoc)
6013 return -EOPNOTSUPP;
636a5d36 6014
074ac8df 6015 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6016 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6017 return -EOPNOTSUPP;
eec60b03 6018
19957bb3 6019 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6020
19957bb3
JB		 6021 chan = ieee80211_get_channel(&rdev->wiphy,
6022 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6023 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6024 return -EINVAL;
636a5d36 6025
19957bb3
JB		 6026 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6027 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6028
6029 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6030 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6031 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6032 }
6033
dc6382ce 6034 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6035 enum nl80211_mfp mfp =
dc6382ce 6036 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6037 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6038 req.use_mfp = true;
4c476991
JB		 6039 else if (mfp != NL80211_MFP_NO)
6040 return -EINVAL;
dc6382ce
JM		 6041 }
6042
3e5d7649 6043 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6044 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6045
7e7c8926 6046 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6047 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6048
6049 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6050 memcpy(&req.ht_capa_mask,
6051 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6052 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6053
6054 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6055 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6056 return -EINVAL;
f62fab73
JB		 6057 memcpy(&req.ht_capa,
6058 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6059 sizeof(req.ht_capa));
7e7c8926
BG		 6060 }
6061
ee2aca34 6062 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6063 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6064
6065 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6066 memcpy(&req.vht_capa_mask,
6067 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6068 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6069
6070 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6071 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6072 return -EINVAL;
f62fab73
JB		 6073 memcpy(&req.vht_capa,
6074 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6075 sizeof(req.vht_capa));
ee2aca34
JB		 6076 }
6077
f62fab73 6078 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
b23aa676 6079 if (!err)
f62fab73
JB		 6080 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6081 ssid, ssid_len, &req);
636a5d36 6082
636a5d36
JM		 6083 return err;
6084}
6085
6086static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6087{
4c476991
JB		 6088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6089 struct net_device *dev = info->user_ptr[1];
19957bb3 6090 const u8 *ie = NULL, *bssid;
4c476991 6091 int ie_len = 0;
19957bb3 6092 u16 reason_code;
d5cdfacb 6093 bool local_state_change;
636a5d36 6094
f4a11bb0
JB		 6095 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6096 return -EINVAL;
6097
6098 if (!info->attrs[NL80211_ATTR_MAC])
6099 return -EINVAL;
6100
6101 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6102 return -EINVAL;
6103
4c476991
JB		 6104 if (!rdev->ops->deauth)
6105 return -EOPNOTSUPP;
636a5d36 6106
074ac8df 6107 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6108 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6109 return -EOPNOTSUPP;
eec60b03 6110
19957bb3 6111 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6112
19957bb3
JB		 6113 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6114 if (reason_code == 0) {
f4a11bb0 6115 /* Reason Code 0 is reserved */
4c476991 6116 return -EINVAL;
255e737e 6117 }
636a5d36
JM		 6118
6119 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6120 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6121 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6122 }
6123
d5cdfacb
JM		 6124 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6125
4c476991
JB		 6126 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6127 local_state_change);
636a5d36
JM		 6128}
6129
6130static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6131{
4c476991
JB		 6132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6133 struct net_device *dev = info->user_ptr[1];
19957bb3 6134 const u8 *ie = NULL, *bssid;
4c476991 6135 int ie_len = 0;
19957bb3 6136 u16 reason_code;
d5cdfacb 6137 bool local_state_change;
636a5d36 6138
f4a11bb0
JB		 6139 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6140 return -EINVAL;
6141
6142 if (!info->attrs[NL80211_ATTR_MAC])
6143 return -EINVAL;
6144
6145 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6146 return -EINVAL;
6147
4c476991
JB		 6148 if (!rdev->ops->disassoc)
6149 return -EOPNOTSUPP;
636a5d36 6150
074ac8df 6151 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6152 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6153 return -EOPNOTSUPP;
eec60b03 6154
19957bb3 6155 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6156
19957bb3
JB		 6157 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6158 if (reason_code == 0) {
f4a11bb0 6159 /* Reason Code 0 is reserved */
4c476991 6160 return -EINVAL;
255e737e 6161 }
636a5d36
JM		 6162
6163 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6164 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6165 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6166 }
6167
d5cdfacb
JM		 6168 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6169
4c476991
JB		 6170 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6171 local_state_change);
636a5d36
JM		 6172}
6173
dd5b4cc7
FF		 6174static bool
6175nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6176 int mcast_rate[IEEE80211_NUM_BANDS],
6177 int rateval)
6178{
6179 struct wiphy *wiphy = &rdev->wiphy;
6180 bool found = false;
6181 int band, i;
6182
6183 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6184 struct ieee80211_supported_band *sband;
6185
6186 sband = wiphy->bands[band];
6187 if (!sband)
6188 continue;
6189
6190 for (i = 0; i < sband->n_bitrates; i++) {
6191 if (sband->bitrates[i].bitrate == rateval) {
6192 mcast_rate[band] = i + 1;
6193 found = true;
6194 break;
6195 }
6196 }
6197 }
6198
6199 return found;
6200}
6201
04a773ad
JB		 6202static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6203{
4c476991
JB		 6204 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6205 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6206 struct cfg80211_ibss_params ibss;
6207 struct wiphy *wiphy;
fffd0934 6208 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6209 int err;
6210
8e30bc55
JB		 6211 memset(&ibss, 0, sizeof(ibss));
6212
04a773ad
JB		 6213 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6214 return -EINVAL;
6215
683b6d3b 6216 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6217 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6218 return -EINVAL;
6219
8e30bc55
JB		 6220 ibss.beacon_interval = 100;
6221
6222 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6223 ibss.beacon_interval =
6224 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6225 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6226 return -EINVAL;
6227 }
6228
4c476991
JB		 6229 if (!rdev->ops->join_ibss)
6230 return -EOPNOTSUPP;
04a773ad 6231
4c476991
JB		 6232 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6233 return -EOPNOTSUPP;
04a773ad 6234
79c97e97 6235 wiphy = &rdev->wiphy;
04a773ad 6236
39193498 6237 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6238 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6239
6240 if (!is_valid_ether_addr(ibss.bssid))
6241 return -EINVAL;
6242 }
04a773ad
JB		 6243 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6244 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6245
6246 if (info->attrs[NL80211_ATTR_IE]) {
6247 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6248 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6249 }
6250
683b6d3b
JB		 6251 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6252 if (err)
6253 return err;
04a773ad 6254
683b6d3b 6255 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6256 return -EINVAL;
6257
db9c64cf
JB		 6258 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
6259 return -EINVAL;
6260 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
6261 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 6262 return -EINVAL;
db9c64cf 6263
04a773ad 6264 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6265 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6266
fbd2c8dc
TP		 6267 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6268 u8 *rates =
6269 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6270 int n_rates =
6271 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6272 struct ieee80211_supported_band *sband =
683b6d3b 6273 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6274
34850ab2
JB		 6275 err = ieee80211_get_ratemask(sband, rates, n_rates,
6276 &ibss.basic_rates);
6277 if (err)
6278 return err;
fbd2c8dc 6279 }
dd5b4cc7
FF		 6280
6281 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6282 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6283 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6284 return -EINVAL;
fbd2c8dc 6285
4c476991 6286 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6287 bool no_ht = false;
6288
4c476991 6289 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6290 info->attrs[NL80211_ATTR_KEYS],
6291 &no_ht);
4c476991
JB		 6292 if (IS_ERR(connkeys))
6293 return PTR_ERR(connkeys);
de7044ee 6294
3d9d1d66
JB		 6295 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6296 no_ht) {
de7044ee
SM		 6297 kfree(connkeys);
6298 return -EINVAL;
6299 }
4c476991 6300 }
04a773ad 6301
267335d6
AQ		 6302 ibss.control_port =
6303 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6304
4c476991 6305 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6306 if (err)
6307 kfree(connkeys);
04a773ad
JB		 6308 return err;
6309}
6310
6311static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6312{
4c476991
JB		 6313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6314 struct net_device *dev = info->user_ptr[1];
04a773ad 6315
4c476991
JB		 6316 if (!rdev->ops->leave_ibss)
6317 return -EOPNOTSUPP;
04a773ad 6318
4c476991
JB		 6319 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6320 return -EOPNOTSUPP;
04a773ad 6321
4c476991 6322 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6323}
6324
f4e583c8
AQ		 6325static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6326{
6327 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6328 struct net_device *dev = info->user_ptr[1];
6329 int mcast_rate[IEEE80211_NUM_BANDS];
6330 u32 nla_rate;
6331 int err;
6332
6333 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6334 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6335 return -EOPNOTSUPP;
6336
6337 if (!rdev->ops->set_mcast_rate)
6338 return -EOPNOTSUPP;
6339
6340 memset(mcast_rate, 0, sizeof(mcast_rate));
6341
6342 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6343 return -EINVAL;
6344
6345 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6346 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6347 return -EINVAL;
6348
6349 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6350
6351 return err;
6352}
6353
6354
aff89a9b
JB		 6355#ifdef CONFIG_NL80211_TESTMODE
6356static struct genl_multicast_group nl80211_testmode_mcgrp = {
6357 .name = "testmode",
6358};
6359
6360static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6361{
4c476991 6362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6363 int err;
6364
6365 if (!info->attrs[NL80211_ATTR_TESTDATA])
6366 return -EINVAL;
6367
aff89a9b
JB		 6368 err = -EOPNOTSUPP;
6369 if (rdev->ops->testmode_cmd) {
6370 rdev->testmode_info = info;
e35e4d28 6371 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6372 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6373 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6374 rdev->testmode_info = NULL;
6375 }
6376
aff89a9b
JB		 6377 return err;
6378}
6379
71063f0e
WYG		 6380static int nl80211_testmode_dump(struct sk_buff *skb,
6381 struct netlink_callback *cb)
6382{
00918d33 6383 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6384 int err;
6385 long phy_idx;
6386 void *data = NULL;
6387 int data_len = 0;
6388
6389 if (cb->args[0]) {
6390 /*
6391 * 0 is a valid index, but not valid for args[0],
6392 * so we need to offset by 1.
6393 */
6394 phy_idx = cb->args[0] - 1;
6395 } else {
6396 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6397 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6398 nl80211_policy);
6399 if (err)
6400 return err;
00918d33 6401
2bd7e35d
JB		 6402 mutex_lock(&cfg80211_mutex);
6403 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6404 nl80211_fam.attrbuf);
6405 if (IS_ERR(rdev)) {
6406 mutex_unlock(&cfg80211_mutex);
6407 return PTR_ERR(rdev);
00918d33 6408 }
2bd7e35d
JB		 6409 phy_idx = rdev->wiphy_idx;
6410 rdev = NULL;
6411 mutex_unlock(&cfg80211_mutex);
6412
71063f0e
WYG		 6413 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6414 cb->args[1] =
6415 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6416 }
6417
6418 if (cb->args[1]) {
6419 data = nla_data((void *)cb->args[1]);
6420 data_len = nla_len((void *)cb->args[1]);
6421 }
6422
6423 mutex_lock(&cfg80211_mutex);
00918d33
JB		 6424 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6425 if (!rdev) {
71063f0e
WYG		 6426 mutex_unlock(&cfg80211_mutex);
6427 return -ENOENT;
6428 }
00918d33 6429 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 6430 mutex_unlock(&cfg80211_mutex);
6431
00918d33 6432 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6433 err = -EOPNOTSUPP;
6434 goto out_err;
6435 }
6436
6437 while (1) {
15e47304 6438 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6439 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6440 NL80211_CMD_TESTMODE);
6441 struct nlattr *tmdata;
6442
9360ffd1 6443 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6444 genlmsg_cancel(skb, hdr);
6445 break;
6446 }
6447
6448 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6449 if (!tmdata) {
6450 genlmsg_cancel(skb, hdr);
6451 break;
6452 }
e35e4d28 6453 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6454 nla_nest_end(skb, tmdata);
6455
6456 if (err == -ENOBUFS || err == -ENOENT) {
6457 genlmsg_cancel(skb, hdr);
6458 break;
6459 } else if (err) {
6460 genlmsg_cancel(skb, hdr);
6461 goto out_err;
6462 }
6463
6464 genlmsg_end(skb, hdr);
6465 }
6466
6467 err = skb->len;
6468 /* see above */
6469 cb->args[0] = phy_idx + 1;
6470 out_err:
00918d33 6471 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 6472 return err;
6473}
6474
aff89a9b
JB		 6475static struct sk_buff *
6476__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6477 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6478{
6479 struct sk_buff *skb;
6480 void *hdr;
6481 struct nlattr *data;
6482
6483 skb = nlmsg_new(approxlen + 100, gfp);
6484 if (!skb)
6485 return NULL;
6486
15e47304 6487 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6488 if (!hdr) {
6489 kfree_skb(skb);
6490 return NULL;
6491 }
6492
9360ffd1
DM		 6493 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6494 goto nla_put_failure;
aff89a9b
JB		 6495 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6496
6497 ((void **)skb->cb)[0] = rdev;
6498 ((void **)skb->cb)[1] = hdr;
6499 ((void **)skb->cb)[2] = data;
6500
6501 return skb;
6502
6503 nla_put_failure:
6504 kfree_skb(skb);
6505 return NULL;
6506}
6507
6508struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6509 int approxlen)
6510{
6511 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6512
6513 if (WARN_ON(!rdev->testmode_info))
6514 return NULL;
6515
6516 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6517 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6518 rdev->testmode_info->snd_seq,
6519 GFP_KERNEL);
6520}
6521EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6522
6523int cfg80211_testmode_reply(struct sk_buff *skb)
6524{
6525 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6526 void *hdr = ((void **)skb->cb)[1];
6527 struct nlattr *data = ((void **)skb->cb)[2];
6528
6529 if (WARN_ON(!rdev->testmode_info)) {
6530 kfree_skb(skb);
6531 return -EINVAL;
6532 }
6533
6534 nla_nest_end(skb, data);
6535 genlmsg_end(skb, hdr);
6536 return genlmsg_reply(skb, rdev->testmode_info);
6537}
6538EXPORT_SYMBOL(cfg80211_testmode_reply);
6539
6540struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6541 int approxlen, gfp_t gfp)
6542{
6543 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6544
6545 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6546}
6547EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6548
6549void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6550{
6551 void *hdr = ((void **)skb->cb)[1];
6552 struct nlattr *data = ((void **)skb->cb)[2];
6553
6554 nla_nest_end(skb, data);
6555 genlmsg_end(skb, hdr);
6556 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6557}
6558EXPORT_SYMBOL(cfg80211_testmode_event);
6559#endif
6560
b23aa676
SO		 6561static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6562{
4c476991
JB		 6563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6564 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6565 struct cfg80211_connect_params connect;
6566 struct wiphy *wiphy;
fffd0934 6567 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6568 int err;
6569
6570 memset(&connect, 0, sizeof(connect));
6571
6572 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6573 return -EINVAL;
6574
6575 if (!info->attrs[NL80211_ATTR_SSID] ||
6576 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6577 return -EINVAL;
6578
6579 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6580 connect.auth_type =
6581 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6582 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6583 NL80211_CMD_CONNECT))
b23aa676
SO		 6584 return -EINVAL;
6585 } else
6586 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6587
6588 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6589
c0692b8f 6590 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6591 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6592 if (err)
6593 return err;
b23aa676 6594
074ac8df 6595 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6596 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6597 return -EOPNOTSUPP;
b23aa676 6598
79c97e97 6599 wiphy = &rdev->wiphy;
b23aa676 6600
4486ea98
BS		 6601 connect.bg_scan_period = -1;
6602 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6603 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6604 connect.bg_scan_period =
6605 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6606 }
6607
b23aa676
SO		 6608 if (info->attrs[NL80211_ATTR_MAC])
6609 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6610 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6611 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6612
6613 if (info->attrs[NL80211_ATTR_IE]) {
6614 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6615 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6616 }
6617
cee00a95
JM		 6618 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6619 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6620 if (connect.mfp != NL80211_MFP_REQUIRED &&
6621 connect.mfp != NL80211_MFP_NO)
6622 return -EINVAL;
6623 } else {
6624 connect.mfp = NL80211_MFP_NO;
6625 }
6626
b23aa676
SO		 6627 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6628 connect.channel =
6629 ieee80211_get_channel(wiphy,
6630 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6631 if (!connect.channel ||
4c476991
JB		 6632 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6633 return -EINVAL;
b23aa676
SO		 6634 }
6635
fffd0934
JB		 6636 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6637 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6638 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6639 if (IS_ERR(connkeys))
6640 return PTR_ERR(connkeys);
fffd0934
JB		 6641 }
6642
7e7c8926
BG		 6643 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6644 connect.flags |= ASSOC_REQ_DISABLE_HT;
6645
6646 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6647 memcpy(&connect.ht_capa_mask,
6648 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6649 sizeof(connect.ht_capa_mask));
6650
6651 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6652 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6653 kfree(connkeys);
7e7c8926 6654 return -EINVAL;
b4e4f47e 6655 }
7e7c8926
BG		 6656 memcpy(&connect.ht_capa,
6657 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6658 sizeof(connect.ht_capa));
6659 }
6660
ee2aca34
JB		 6661 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6662 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6663
6664 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6665 memcpy(&connect.vht_capa_mask,
6666 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6667 sizeof(connect.vht_capa_mask));
6668
6669 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6670 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6671 kfree(connkeys);
6672 return -EINVAL;
6673 }
6674 memcpy(&connect.vht_capa,
6675 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6676 sizeof(connect.vht_capa));
6677 }
6678
fffd0934 6679 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 6680 if (err)
6681 kfree(connkeys);
b23aa676
SO		 6682 return err;
6683}
6684
6685static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6686{
4c476991
JB		 6687 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6688 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6689 u16 reason;
6690
6691 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6692 reason = WLAN_REASON_DEAUTH_LEAVING;
6693 else
6694 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6695
6696 if (reason == 0)
6697 return -EINVAL;
6698
074ac8df 6699 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6700 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6701 return -EOPNOTSUPP;
b23aa676 6702
4c476991 6703 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 6704}
6705
463d0183
JB		 6706static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6707{
4c476991 6708 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6709 struct net *net;
6710 int err;
6711 u32 pid;
6712
6713 if (!info->attrs[NL80211_ATTR_PID])
6714 return -EINVAL;
6715
6716 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6717
463d0183 6718 net = get_net_ns_by_pid(pid);
4c476991
JB		 6719 if (IS_ERR(net))
6720 return PTR_ERR(net);
463d0183
JB		 6721
6722 err = 0;
6723
6724 /* check if anything to do */
4c476991
JB		 6725 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6726 err = cfg80211_switch_netns(rdev, net);
463d0183 6727
463d0183 6728 put_net(net);
463d0183
JB		 6729 return err;
6730}
6731
67fbb16b
SO		 6732static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6733{
4c476991 6734 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6735 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6736 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6737 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6738 struct cfg80211_pmksa pmksa;
6739
6740 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6741
6742 if (!info->attrs[NL80211_ATTR_MAC])
6743 return -EINVAL;
6744
6745 if (!info->attrs[NL80211_ATTR_PMKID])
6746 return -EINVAL;
6747
67fbb16b
SO		 6748 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6749 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6750
074ac8df 6751 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6752 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6753 return -EOPNOTSUPP;
67fbb16b
SO		 6754
6755 switch (info->genlhdr->cmd) {
6756 case NL80211_CMD_SET_PMKSA:
6757 rdev_ops = rdev->ops->set_pmksa;
6758 break;
6759 case NL80211_CMD_DEL_PMKSA:
6760 rdev_ops = rdev->ops->del_pmksa;
6761 break;
6762 default:
6763 WARN_ON(1);
6764 break;
6765 }
6766
4c476991
JB		 6767 if (!rdev_ops)
6768 return -EOPNOTSUPP;
67fbb16b 6769
4c476991 6770 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6771}
6772
6773static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6774{
4c476991
JB		 6775 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6776 struct net_device *dev = info->user_ptr[1];
67fbb16b 6777
074ac8df 6778 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6779 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6780 return -EOPNOTSUPP;
67fbb16b 6781
4c476991
JB		 6782 if (!rdev->ops->flush_pmksa)
6783 return -EOPNOTSUPP;
67fbb16b 6784
e35e4d28 6785 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6786}
6787
109086ce
AN		 6788static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6789{
6790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6791 struct net_device *dev = info->user_ptr[1];
6792 u8 action_code, dialog_token;
6793 u16 status_code;
6794 u8 *peer;
6795
6796 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6797 !rdev->ops->tdls_mgmt)
6798 return -EOPNOTSUPP;
6799
6800 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6801 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6802 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6803 !info->attrs[NL80211_ATTR_IE] ||
6804 !info->attrs[NL80211_ATTR_MAC])
6805 return -EINVAL;
6806
6807 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6808 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6809 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6810 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6811
e35e4d28
HG		 6812 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6813 dialog_token, status_code,
6814 nla_data(info->attrs[NL80211_ATTR_IE]),
6815 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6816}
6817
6818static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6819{
6820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6821 struct net_device *dev = info->user_ptr[1];
6822 enum nl80211_tdls_operation operation;
6823 u8 *peer;
6824
6825 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6826 !rdev->ops->tdls_oper)
6827 return -EOPNOTSUPP;
6828
6829 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6830 !info->attrs[NL80211_ATTR_MAC])
6831 return -EINVAL;
6832
6833 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6834 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6835
e35e4d28 6836 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6837}
6838
9588bbd5
JM		 6839static int nl80211_remain_on_channel(struct sk_buff *skb,
6840 struct genl_info *info)
6841{
4c476991 6842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6843 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6844 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6845 struct sk_buff *msg;
6846 void *hdr;
6847 u64 cookie;
683b6d3b 6848 u32 duration;
9588bbd5
JM		 6849 int err;
6850
6851 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6852 !info->attrs[NL80211_ATTR_DURATION])
6853 return -EINVAL;
6854
6855 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6856
ebf348fc
JB		 6857 if (!rdev->ops->remain_on_channel ||
6858 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6859 return -EOPNOTSUPP;
6860
9588bbd5 6861 /*
ebf348fc
JB		 6862 * We should be on that channel for at least a minimum amount of
6863 * time (10ms) but no longer than the driver supports.
9588bbd5 6864 */
ebf348fc 6865 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6866 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6867 return -EINVAL;
6868
683b6d3b
JB		 6869 err = nl80211_parse_chandef(rdev, info, &chandef);
6870 if (err)
6871 return err;
9588bbd5
JM		 6872
6873 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6874 if (!msg)
6875 return -ENOMEM;
9588bbd5 6876
15e47304 6877 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6878 NL80211_CMD_REMAIN_ON_CHANNEL);
6879
6880 if (IS_ERR(hdr)) {
6881 err = PTR_ERR(hdr);
6882 goto free_msg;
6883 }
6884
683b6d3b
JB		 6885 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6886 duration, &cookie);
9588bbd5
JM		 6887
6888 if (err)
6889 goto free_msg;
6890
9360ffd1
DM		 6891 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6892 goto nla_put_failure;
9588bbd5
JM		 6893
6894 genlmsg_end(msg, hdr);
4c476991
JB		 6895
6896 return genlmsg_reply(msg, info);
9588bbd5
JM		 6897
6898 nla_put_failure:
6899 err = -ENOBUFS;
6900 free_msg:
6901 nlmsg_free(msg);
9588bbd5
JM		 6902 return err;
6903}
6904
6905static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6906 struct genl_info *info)
6907{
4c476991 6908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6909 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6910 u64 cookie;
9588bbd5
JM		 6911
6912 if (!info->attrs[NL80211_ATTR_COOKIE])
6913 return -EINVAL;
6914
4c476991
JB		 6915 if (!rdev->ops->cancel_remain_on_channel)
6916 return -EOPNOTSUPP;
9588bbd5 6917
9588bbd5
JM		 6918 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6919
e35e4d28 6920 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6921}
6922
13ae75b1
JM		 6923static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6924 u8 *rates, u8 rates_len)
6925{
6926 u8 i;
6927 u32 mask = 0;
6928
6929 for (i = 0; i < rates_len; i++) {
6930 int rate = (rates[i] & 0x7f) * 5;
6931 int ridx;
6932 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6933 struct ieee80211_rate *srate =
6934 &sband->bitrates[ridx];
6935 if (rate == srate->bitrate) {
6936 mask |= 1 << ridx;
6937 break;
6938 }
6939 }
6940 if (ridx == sband->n_bitrates)
6941 return 0; /* rate not found */
6942 }
6943
6944 return mask;
6945}
6946
24db78c0
SW		 6947static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6948 u8 *rates, u8 rates_len,
6949 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6950{
6951 u8 i;
6952
6953 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6954
6955 for (i = 0; i < rates_len; i++) {
6956 int ridx, rbit;
6957
6958 ridx = rates[i] / 8;
6959 rbit = BIT(rates[i] % 8);
6960
6961 /* check validity */
910570b5 6962 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6963 return false;
6964
6965 /* check availability */
6966 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6967 mcs[ridx] |= rbit;
6968 else
6969 return false;
6970 }
6971
6972 return true;
6973}
6974
b54452b0 6975static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6976 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6977 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6978 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6979 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6980};
6981
6982static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6983 struct genl_info *info)
6984{
6985 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6987 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6988 int rem, i;
6989 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6990 struct nlattr *tx_rates;
6991 struct ieee80211_supported_band *sband;
6992
6993 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6994 return -EINVAL;
6995
4c476991
JB		 6996 if (!rdev->ops->set_bitrate_mask)
6997 return -EOPNOTSUPP;
13ae75b1
JM		 6998
6999 memset(&mask, 0, sizeof(mask));
7000 /* Default to all rates enabled */
7001 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7002 sband = rdev->wiphy.bands[i];
7003 mask.control[i].legacy =
7004 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 7005 if (sband)
7006 memcpy(mask.control[i].mcs,
7007 sband->ht_cap.mcs.rx_mask,
7008 sizeof(mask.control[i].mcs));
7009 else
7010 memset(mask.control[i].mcs, 0,
7011 sizeof(mask.control[i].mcs));
13ae75b1
JM		 7012 }
7013
7014 /*
7015 * The nested attribute uses enum nl80211_band as the index. This maps
7016 * directly to the enum ieee80211_band values used in cfg80211.
7017 */
24db78c0 7018 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7019 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7020 {
7021 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7022 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7023 return -EINVAL;
13ae75b1 7024 sband = rdev->wiphy.bands[band];
4c476991
JB		 7025 if (sband == NULL)
7026 return -EINVAL;
13ae75b1
JM		 7027 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7028 nla_len(tx_rates), nl80211_txattr_policy);
7029 if (tb[NL80211_TXRATE_LEGACY]) {
7030 mask.control[band].legacy = rateset_to_mask(
7031 sband,
7032 nla_data(tb[NL80211_TXRATE_LEGACY]),
7033 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7034 if ((mask.control[band].legacy == 0) &&
7035 nla_len(tb[NL80211_TXRATE_LEGACY]))
7036 return -EINVAL;
24db78c0
SW		 7037 }
7038 if (tb[NL80211_TXRATE_MCS]) {
7039 if (!ht_rateset_to_mask(
7040 sband,
7041 nla_data(tb[NL80211_TXRATE_MCS]),
7042 nla_len(tb[NL80211_TXRATE_MCS]),
7043 mask.control[band].mcs))
7044 return -EINVAL;
7045 }
7046
7047 if (mask.control[band].legacy == 0) {
7048 /* don't allow empty legacy rates if HT
7049 * is not even supported. */
7050 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7051 return -EINVAL;
7052
7053 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7054 if (mask.control[band].mcs[i])
7055 break;
7056
7057 /* legacy and mcs rates may not be both empty */
7058 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7059 return -EINVAL;
13ae75b1
JM		 7060 }
7061 }
7062
e35e4d28 7063 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7064}
7065
2e161f78 7066static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7067{
4c476991 7068 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7069 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7070 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7071
7072 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7073 return -EINVAL;
7074
2e161f78
JB		 7075 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7076 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7077
71bbc994
JB		 7078 switch (wdev->iftype) {
7079 case NL80211_IFTYPE_STATION:
7080 case NL80211_IFTYPE_ADHOC:
7081 case NL80211_IFTYPE_P2P_CLIENT:
7082 case NL80211_IFTYPE_AP:
7083 case NL80211_IFTYPE_AP_VLAN:
7084 case NL80211_IFTYPE_MESH_POINT:
7085 case NL80211_IFTYPE_P2P_GO:
98104fde 7086 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7087 break;
7088 default:
4c476991 7089 return -EOPNOTSUPP;
71bbc994 7090 }
026331c4
JM		 7091
7092 /* not much point in registering if we can't reply */
4c476991
JB		 7093 if (!rdev->ops->mgmt_tx)
7094 return -EOPNOTSUPP;
026331c4 7095
15e47304 7096 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7097 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7098 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7099}
7100
2e161f78 7101static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7102{
4c476991 7103 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7104 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7105 struct cfg80211_chan_def chandef;
026331c4 7106 int err;
d64d373f 7107 void *hdr = NULL;
026331c4 7108 u64 cookie;
e247bd90 7109 struct sk_buff *msg = NULL;
f7ca38df 7110 unsigned int wait = 0;
e247bd90
JB		 7111 bool offchan, no_cck, dont_wait_for_ack;
7112
7113 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 7114
683b6d3b 7115 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7116 return -EINVAL;
7117
4c476991
JB		 7118 if (!rdev->ops->mgmt_tx)
7119 return -EOPNOTSUPP;
026331c4 7120
71bbc994
JB		 7121 switch (wdev->iftype) {
7122 case NL80211_IFTYPE_STATION:
7123 case NL80211_IFTYPE_ADHOC:
7124 case NL80211_IFTYPE_P2P_CLIENT:
7125 case NL80211_IFTYPE_AP:
7126 case NL80211_IFTYPE_AP_VLAN:
7127 case NL80211_IFTYPE_MESH_POINT:
7128 case NL80211_IFTYPE_P2P_GO:
98104fde 7129 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7130 break;
7131 default:
4c476991 7132 return -EOPNOTSUPP;
71bbc994 7133 }
026331c4 7134
f7ca38df 7135 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7136 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 7137 return -EINVAL;
7138 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7139
7140 /*
7141 * We should wait on the channel for at least a minimum amount
7142 * of time (10ms) but no longer than the driver supports.
7143 */
7144 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7145 wait > rdev->wiphy.max_remain_on_channel_duration)
7146 return -EINVAL;
7147
f7ca38df
JB		 7148 }
7149
f7ca38df
JB		 7150 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7151
7c4ef712
JB		 7152 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7153 return -EINVAL;
7154
e9f935e3
RM		 7155 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7156
683b6d3b
JB		 7157 err = nl80211_parse_chandef(rdev, info, &chandef);
7158 if (err)
7159 return err;
026331c4 7160
e247bd90
JB		 7161 if (!dont_wait_for_ack) {
7162 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7163 if (!msg)
7164 return -ENOMEM;
026331c4 7165
15e47304 7166 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7167 NL80211_CMD_FRAME);
026331c4 7168
e247bd90
JB		 7169 if (IS_ERR(hdr)) {
7170 err = PTR_ERR(hdr);
7171 goto free_msg;
7172 }
026331c4 7173 }
e247bd90 7174
683b6d3b 7175 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 7176 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7177 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 7178 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 7179 if (err)
7180 goto free_msg;
7181
e247bd90 7182 if (msg) {
9360ffd1
DM		 7183 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7184 goto nla_put_failure;
026331c4 7185
e247bd90
JB		 7186 genlmsg_end(msg, hdr);
7187 return genlmsg_reply(msg, info);
7188 }
7189
7190 return 0;
026331c4
JM		 7191
7192 nla_put_failure:
7193 err = -ENOBUFS;
7194 free_msg:
7195 nlmsg_free(msg);
026331c4
JM		 7196 return err;
7197}
7198
f7ca38df
JB		 7199static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7200{
7201 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7202 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7203 u64 cookie;
7204
7205 if (!info->attrs[NL80211_ATTR_COOKIE])
7206 return -EINVAL;
7207
7208 if (!rdev->ops->mgmt_tx_cancel_wait)
7209 return -EOPNOTSUPP;
7210
71bbc994
JB		 7211 switch (wdev->iftype) {
7212 case NL80211_IFTYPE_STATION:
7213 case NL80211_IFTYPE_ADHOC:
7214 case NL80211_IFTYPE_P2P_CLIENT:
7215 case NL80211_IFTYPE_AP:
7216 case NL80211_IFTYPE_AP_VLAN:
7217 case NL80211_IFTYPE_P2P_GO:
98104fde 7218 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7219 break;
7220 default:
f7ca38df 7221 return -EOPNOTSUPP;
71bbc994 7222 }
f7ca38df
JB		 7223
7224 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7225
e35e4d28 7226 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7227}
7228
ffb9eb3d
KV		 7229static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7230{
4c476991 7231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7232 struct wireless_dev *wdev;
4c476991 7233 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7234 u8 ps_state;
7235 bool state;
7236 int err;
7237
4c476991
JB		 7238 if (!info->attrs[NL80211_ATTR_PS_STATE])
7239 return -EINVAL;
ffb9eb3d
KV		 7240
7241 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7242
4c476991
JB		 7243 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7244 return -EINVAL;
ffb9eb3d
KV		 7245
7246 wdev = dev->ieee80211_ptr;
7247
4c476991
JB		 7248 if (!rdev->ops->set_power_mgmt)
7249 return -EOPNOTSUPP;
ffb9eb3d
KV		 7250
7251 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7252
7253 if (state == wdev->ps)
4c476991 7254 return 0;
ffb9eb3d 7255
e35e4d28 7256 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7257 if (!err)
7258 wdev->ps = state;
ffb9eb3d
KV		 7259 return err;
7260}
7261
7262static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7263{
4c476991 7264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7265 enum nl80211_ps_state ps_state;
7266 struct wireless_dev *wdev;
4c476991 7267 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7268 struct sk_buff *msg;
7269 void *hdr;
7270 int err;
7271
ffb9eb3d
KV		 7272 wdev = dev->ieee80211_ptr;
7273
4c476991
JB		 7274 if (!rdev->ops->set_power_mgmt)
7275 return -EOPNOTSUPP;
ffb9eb3d
KV		 7276
7277 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7278 if (!msg)
7279 return -ENOMEM;
ffb9eb3d 7280
15e47304 7281 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7282 NL80211_CMD_GET_POWER_SAVE);
7283 if (!hdr) {
4c476991 7284 err = -ENOBUFS;
ffb9eb3d
KV		 7285 goto free_msg;
7286 }
7287
7288 if (wdev->ps)
7289 ps_state = NL80211_PS_ENABLED;
7290 else
7291 ps_state = NL80211_PS_DISABLED;
7292
9360ffd1
DM		 7293 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7294 goto nla_put_failure;
ffb9eb3d
KV		 7295
7296 genlmsg_end(msg, hdr);
4c476991 7297 return genlmsg_reply(msg, info);
ffb9eb3d 7298
4c476991 7299 nla_put_failure:
ffb9eb3d 7300 err = -ENOBUFS;
4c476991 7301 free_msg:
ffb9eb3d 7302 nlmsg_free(msg);
ffb9eb3d
KV		 7303 return err;
7304}
7305
d6dc1a38
JO		 7306static struct nla_policy
7307nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7308 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7309 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7310 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7311 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7312 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7313 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7314};
7315
84f10708 7316static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7317 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7318{
7319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7320 struct wireless_dev *wdev;
7321 struct net_device *dev = info->user_ptr[1];
7322
d9d8b019 7323 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7324 return -EINVAL;
7325
7326 wdev = dev->ieee80211_ptr;
7327
7328 if (!rdev->ops->set_cqm_txe_config)
7329 return -EOPNOTSUPP;
7330
7331 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7332 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7333 return -EOPNOTSUPP;
7334
e35e4d28 7335 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7336}
7337
d6dc1a38
JO		 7338static int nl80211_set_cqm_rssi(struct genl_info *info,
7339 s32 threshold, u32 hysteresis)
7340{
4c476991 7341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 7342 struct wireless_dev *wdev;
4c476991 7343 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 7344
7345 if (threshold > 0)
7346 return -EINVAL;
7347
d6dc1a38
JO		 7348 wdev = dev->ieee80211_ptr;
7349
4c476991
JB		 7350 if (!rdev->ops->set_cqm_rssi_config)
7351 return -EOPNOTSUPP;
d6dc1a38 7352
074ac8df 7353 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7354 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7355 return -EOPNOTSUPP;
d6dc1a38 7356
e35e4d28 7357 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7358}
7359
7360static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7361{
7362 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7363 struct nlattr *cqm;
7364 int err;
7365
7366 cqm = info->attrs[NL80211_ATTR_CQM];
7367 if (!cqm) {
7368 err = -EINVAL;
7369 goto out;
7370 }
7371
7372 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7373 nl80211_attr_cqm_policy);
7374 if (err)
7375 goto out;
7376
7377 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7378 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7379 s32 threshold;
7380 u32 hysteresis;
7381 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7382 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7383 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7384 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7385 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7386 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7387 u32 rate, pkts, intvl;
7388 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7389 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7390 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7391 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7392 } else
7393 err = -EINVAL;
7394
7395out:
7396 return err;
7397}
7398
29cbe68c
JB		 7399static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7400{
7401 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7402 struct net_device *dev = info->user_ptr[1];
7403 struct mesh_config cfg;
c80d545d 7404 struct mesh_setup setup;
29cbe68c
JB		 7405 int err;
7406
7407 /* start with default */
7408 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7409 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7410
24bdd9f4 7411 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7412 /* and parse parameters if given */
24bdd9f4 7413 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7414 if (err)
7415 return err;
7416 }
7417
7418 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7419 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7420 return -EINVAL;
7421
c80d545d
JC		 7422 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7423 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7424
4bb62344
CYY		 7425 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7426 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7427 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7428 return -EINVAL;
7429
9bdbf04d
MP		 7430 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7431 setup.beacon_interval =
7432 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7433 if (setup.beacon_interval < 10 ||
7434 setup.beacon_interval > 10000)
7435 return -EINVAL;
7436 }
7437
7438 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7439 setup.dtim_period =
7440 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7441 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7442 return -EINVAL;
7443 }
7444
c80d545d
JC		 7445 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7446 /* parse additional setup parameters if given */
7447 err = nl80211_parse_mesh_setup(info, &setup);
7448 if (err)
7449 return err;
7450 }
7451
d37bb18a
TP		 7452 if (setup.user_mpm)
7453 cfg.auto_open_plinks = false;
7454
cc1d2806 7455 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7456 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7457 if (err)
7458 return err;
cc1d2806
JB		 7459 } else {
7460 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7461 setup.chandef.chan = NULL;
cc1d2806
JB		 7462 }
7463
c80d545d 7464 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7465}
7466
7467static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7468{
7469 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7470 struct net_device *dev = info->user_ptr[1];
7471
7472 return cfg80211_leave_mesh(rdev, dev);
7473}
7474
dfb89c56 7475#ifdef CONFIG_PM
bb92d199
AK		 7476static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7477 struct cfg80211_registered_device *rdev)
7478{
7479 struct nlattr *nl_pats, *nl_pat;
7480 int i, pat_len;
7481
7482 if (!rdev->wowlan->n_patterns)
7483 return 0;
7484
7485 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7486 if (!nl_pats)
7487 return -ENOBUFS;
7488
7489 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7490 nl_pat = nla_nest_start(msg, i + 1);
7491 if (!nl_pat)
7492 return -ENOBUFS;
7493 pat_len = rdev->wowlan->patterns[i].pattern_len;
7494 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7495 DIV_ROUND_UP(pat_len, 8),
7496 rdev->wowlan->patterns[i].mask) ||
7497 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7498 pat_len, rdev->wowlan->patterns[i].pattern) ||
7499 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7500 rdev->wowlan->patterns[i].pkt_offset))
7501 return -ENOBUFS;
7502 nla_nest_end(msg, nl_pat);
7503 }
7504 nla_nest_end(msg, nl_pats);
7505
7506 return 0;
7507}
7508
2a0e047e
JB		 7509static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7510 struct cfg80211_wowlan_tcp *tcp)
7511{
7512 struct nlattr *nl_tcp;
7513
7514 if (!tcp)
7515 return 0;
7516
7517 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7518 if (!nl_tcp)
7519 return -ENOBUFS;
7520
7521 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7522 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7523 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7524 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7525 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7526 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7527 tcp->payload_len, tcp->payload) ||
7528 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7529 tcp->data_interval) ||
7530 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7531 tcp->wake_len, tcp->wake_data) ||
7532 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7533 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7534 return -ENOBUFS;
7535
7536 if (tcp->payload_seq.len &&
7537 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7538 sizeof(tcp->payload_seq), &tcp->payload_seq))
7539 return -ENOBUFS;
7540
7541 if (tcp->payload_tok.len &&
7542 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7543 sizeof(tcp->payload_tok) + tcp->tokens_size,
7544 &tcp->payload_tok))
7545 return -ENOBUFS;
7546
7547 return 0;
7548}
7549
ff1b6e69
JB		 7550static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7551{
7552 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7553 struct sk_buff *msg;
7554 void *hdr;
2a0e047e 7555 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7556
2a0e047e
JB		 7557 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7558 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7559 return -EOPNOTSUPP;
7560
2a0e047e
JB		 7561 if (rdev->wowlan && rdev->wowlan->tcp) {
7562 /* adjust size to have room for all the data */
7563 size += rdev->wowlan->tcp->tokens_size +
7564 rdev->wowlan->tcp->payload_len +
7565 rdev->wowlan->tcp->wake_len +
7566 rdev->wowlan->tcp->wake_len / 8;
7567 }
7568
7569 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7570 if (!msg)
7571 return -ENOMEM;
7572
15e47304 7573 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7574 NL80211_CMD_GET_WOWLAN);
7575 if (!hdr)
7576 goto nla_put_failure;
7577
7578 if (rdev->wowlan) {
7579 struct nlattr *nl_wowlan;
7580
7581 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7582 if (!nl_wowlan)
7583 goto nla_put_failure;
7584
9360ffd1
DM		 7585 if ((rdev->wowlan->any &&
7586 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7587 (rdev->wowlan->disconnect &&
7588 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7589 (rdev->wowlan->magic_pkt &&
7590 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7591 (rdev->wowlan->gtk_rekey_failure &&
7592 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7593 (rdev->wowlan->eap_identity_req &&
7594 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7595 (rdev->wowlan->four_way_handshake &&
7596 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7597 (rdev->wowlan->rfkill_release &&
7598 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7599 goto nla_put_failure;
2a0e047e 7600
bb92d199
AK		 7601 if (nl80211_send_wowlan_patterns(msg, rdev))
7602 goto nla_put_failure;
2a0e047e
JB		 7603
7604 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7605 goto nla_put_failure;
7606
ff1b6e69
JB		 7607 nla_nest_end(msg, nl_wowlan);
7608 }
7609
7610 genlmsg_end(msg, hdr);
7611 return genlmsg_reply(msg, info);
7612
7613nla_put_failure:
7614 nlmsg_free(msg);
7615 return -ENOBUFS;
7616}
7617
2a0e047e
JB		 7618static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7619 struct nlattr *attr,
7620 struct cfg80211_wowlan *trig)
7621{
7622 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7623 struct cfg80211_wowlan_tcp *cfg;
7624 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7625 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7626 u32 size;
7627 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7628 int err, port;
7629
7630 if (!rdev->wiphy.wowlan.tcp)
7631 return -EINVAL;
7632
7633 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7634 nla_data(attr), nla_len(attr),
7635 nl80211_wowlan_tcp_policy);
7636 if (err)
7637 return err;
7638
7639 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7640 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7641 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7642 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7643 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7644 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7645 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7646 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7647 return -EINVAL;
7648
7649 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7650 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7651 return -EINVAL;
7652
7653 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
723d568a
JB		 7654 rdev->wiphy.wowlan.tcp->data_interval_max ||
7655 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 7656 return -EINVAL;
7657
7658 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7659 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7660 return -EINVAL;
7661
7662 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7663 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7664 return -EINVAL;
7665
7666 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7667 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7668
7669 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7670 tokens_size = tokln - sizeof(*tok);
7671
7672 if (!tok->len || tokens_size % tok->len)
7673 return -EINVAL;
7674 if (!rdev->wiphy.wowlan.tcp->tok)
7675 return -EINVAL;
7676 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7677 return -EINVAL;
7678 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7679 return -EINVAL;
7680 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7681 return -EINVAL;
7682 if (tok->offset + tok->len > data_size)
7683 return -EINVAL;
7684 }
7685
7686 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7687 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7688 if (!rdev->wiphy.wowlan.tcp->seq)
7689 return -EINVAL;
7690 if (seq->len == 0 || seq->len > 4)
7691 return -EINVAL;
7692 if (seq->len + seq->offset > data_size)
7693 return -EINVAL;
7694 }
7695
7696 size = sizeof(*cfg);
7697 size += data_size;
7698 size += wake_size + wake_mask_size;
7699 size += tokens_size;
7700
7701 cfg = kzalloc(size, GFP_KERNEL);
7702 if (!cfg)
7703 return -ENOMEM;
7704 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7705 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7706 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7707 ETH_ALEN);
7708 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7709 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7710 else
7711 port = 0;
7712#ifdef CONFIG_INET
7713 /* allocate a socket and port for it and use it */
7714 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7715 IPPROTO_TCP, &cfg->sock, 1);
7716 if (err) {
7717 kfree(cfg);
7718 return err;
7719 }
7720 if (inet_csk_get_port(cfg->sock->sk, port)) {
7721 sock_release(cfg->sock);
7722 kfree(cfg);
7723 return -EADDRINUSE;
7724 }
7725 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7726#else
7727 if (!port) {
7728 kfree(cfg);
7729 return -EINVAL;
7730 }
7731 cfg->src_port = port;
7732#endif
7733
7734 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7735 cfg->payload_len = data_size;
7736 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7737 memcpy((void *)cfg->payload,
7738 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7739 data_size);
7740 if (seq)
7741 cfg->payload_seq = *seq;
7742 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7743 cfg->wake_len = wake_size;
7744 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7745 memcpy((void *)cfg->wake_data,
7746 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7747 wake_size);
7748 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7749 data_size + wake_size;
7750 memcpy((void *)cfg->wake_mask,
7751 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7752 wake_mask_size);
7753 if (tok) {
7754 cfg->tokens_size = tokens_size;
7755 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7756 }
7757
7758 trig->tcp = cfg;
7759
7760 return 0;
7761}
7762
ff1b6e69
JB		 7763static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7764{
7765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7766 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7767 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7768 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 7769 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7770 int err, i;
6d52563f 7771 bool prev_enabled = rdev->wowlan;
ff1b6e69 7772
2a0e047e
JB		 7773 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7774 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7775 return -EOPNOTSUPP;
7776
ae33bd81
JB		 7777 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7778 cfg80211_rdev_free_wowlan(rdev);
7779 rdev->wowlan = NULL;
7780 goto set_wakeup;
7781 }
ff1b6e69
JB		 7782
7783 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7784 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7785 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7786 nl80211_wowlan_policy);
7787 if (err)
7788 return err;
7789
7790 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7791 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7792 return -EINVAL;
7793 new_triggers.any = true;
7794 }
7795
7796 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7797 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7798 return -EINVAL;
7799 new_triggers.disconnect = true;
7800 }
7801
7802 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7803 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7804 return -EINVAL;
7805 new_triggers.magic_pkt = true;
7806 }
7807
77dbbb13
JB		 7808 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7809 return -EINVAL;
7810
7811 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7812 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7813 return -EINVAL;
7814 new_triggers.gtk_rekey_failure = true;
7815 }
7816
7817 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7818 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7819 return -EINVAL;
7820 new_triggers.eap_identity_req = true;
7821 }
7822
7823 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7824 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7825 return -EINVAL;
7826 new_triggers.four_way_handshake = true;
7827 }
7828
7829 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7830 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7831 return -EINVAL;
7832 new_triggers.rfkill_release = true;
7833 }
7834
ff1b6e69
JB		 7835 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7836 struct nlattr *pat;
7837 int n_patterns = 0;
bb92d199 7838 int rem, pat_len, mask_len, pkt_offset;
ff1b6e69
JB		 7839 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7840
7841 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7842 rem)
7843 n_patterns++;
7844 if (n_patterns > wowlan->n_patterns)
7845 return -EINVAL;
7846
7847 new_triggers.patterns = kcalloc(n_patterns,
7848 sizeof(new_triggers.patterns[0]),
7849 GFP_KERNEL);
7850 if (!new_triggers.patterns)
7851 return -ENOMEM;
7852
7853 new_triggers.n_patterns = n_patterns;
7854 i = 0;
7855
7856 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7857 rem) {
7858 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7859 nla_data(pat), nla_len(pat), NULL);
7860 err = -EINVAL;
7861 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7862 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7863 goto error;
7864 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7865 mask_len = DIV_ROUND_UP(pat_len, 8);
7866 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7867 mask_len)
7868 goto error;
7869 if (pat_len > wowlan->pattern_max_len ||
7870 pat_len < wowlan->pattern_min_len)
7871 goto error;
7872
bb92d199
AK		 7873 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7874 pkt_offset = 0;
7875 else
7876 pkt_offset = nla_get_u32(
7877 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7878 if (pkt_offset > wowlan->max_pkt_offset)
7879 goto error;
7880 new_triggers.patterns[i].pkt_offset = pkt_offset;
7881
ff1b6e69
JB		 7882 new_triggers.patterns[i].mask =
7883 kmalloc(mask_len + pat_len, GFP_KERNEL);
7884 if (!new_triggers.patterns[i].mask) {
7885 err = -ENOMEM;
7886 goto error;
7887 }
7888 new_triggers.patterns[i].pattern =
7889 new_triggers.patterns[i].mask + mask_len;
7890 memcpy(new_triggers.patterns[i].mask,
7891 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7892 mask_len);
7893 new_triggers.patterns[i].pattern_len = pat_len;
7894 memcpy(new_triggers.patterns[i].pattern,
7895 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7896 pat_len);
7897 i++;
7898 }
7899 }
7900
2a0e047e
JB		 7901 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7902 err = nl80211_parse_wowlan_tcp(
7903 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7904 &new_triggers);
7905 if (err)
7906 goto error;
7907 }
7908
ae33bd81
JB		 7909 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7910 if (!ntrig) {
7911 err = -ENOMEM;
7912 goto error;
ff1b6e69 7913 }
ae33bd81
JB		 7914 cfg80211_rdev_free_wowlan(rdev);
7915 rdev->wowlan = ntrig;
ff1b6e69 7916
ae33bd81 7917 set_wakeup:
6d52563f 7918 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 7919 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 7920
ff1b6e69
JB		 7921 return 0;
7922 error:
7923 for (i = 0; i < new_triggers.n_patterns; i++)
7924 kfree(new_triggers.patterns[i].mask);
7925 kfree(new_triggers.patterns);
2a0e047e
JB		 7926 if (new_triggers.tcp && new_triggers.tcp->sock)
7927 sock_release(new_triggers.tcp->sock);
7928 kfree(new_triggers.tcp);
ff1b6e69
JB		 7929 return err;
7930}
dfb89c56 7931#endif
ff1b6e69 7932
e5497d76
JB		 7933static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7934{
7935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7936 struct net_device *dev = info->user_ptr[1];
7937 struct wireless_dev *wdev = dev->ieee80211_ptr;
7938 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7939 struct cfg80211_gtk_rekey_data rekey_data;
7940 int err;
7941
7942 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7943 return -EINVAL;
7944
7945 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7946 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7947 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7948 nl80211_rekey_policy);
7949 if (err)
7950 return err;
7951
7952 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7953 return -ERANGE;
7954 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7955 return -ERANGE;
7956 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7957 return -ERANGE;
7958
7959 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7960 NL80211_KEK_LEN);
7961 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7962 NL80211_KCK_LEN);
7963 memcpy(rekey_data.replay_ctr,
7964 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7965 NL80211_REPLAY_CTR_LEN);
7966
7967 wdev_lock(wdev);
7968 if (!wdev->current_bss) {
7969 err = -ENOTCONN;
7970 goto out;
7971 }
7972
7973 if (!rdev->ops->set_rekey_data) {
7974 err = -EOPNOTSUPP;
7975 goto out;
7976 }
7977
e35e4d28 7978 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 7979 out:
7980 wdev_unlock(wdev);
7981 return err;
7982}
7983
28946da7
JB		 7984static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7985 struct genl_info *info)
7986{
7987 struct net_device *dev = info->user_ptr[1];
7988 struct wireless_dev *wdev = dev->ieee80211_ptr;
7989
7990 if (wdev->iftype != NL80211_IFTYPE_AP &&
7991 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7992 return -EINVAL;
7993
15e47304 7994 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 7995 return -EBUSY;
7996
15e47304 7997 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 7998 return 0;
7999}
8000
7f6cf311
JB		 8001static int nl80211_probe_client(struct sk_buff *skb,
8002 struct genl_info *info)
8003{
8004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8005 struct net_device *dev = info->user_ptr[1];
8006 struct wireless_dev *wdev = dev->ieee80211_ptr;
8007 struct sk_buff *msg;
8008 void *hdr;
8009 const u8 *addr;
8010 u64 cookie;
8011 int err;
8012
8013 if (wdev->iftype != NL80211_IFTYPE_AP &&
8014 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8015 return -EOPNOTSUPP;
8016
8017 if (!info->attrs[NL80211_ATTR_MAC])
8018 return -EINVAL;
8019
8020 if (!rdev->ops->probe_client)
8021 return -EOPNOTSUPP;
8022
8023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8024 if (!msg)
8025 return -ENOMEM;
8026
15e47304 8027 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 8028 NL80211_CMD_PROBE_CLIENT);
8029
8030 if (IS_ERR(hdr)) {
8031 err = PTR_ERR(hdr);
8032 goto free_msg;
8033 }
8034
8035 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8036
e35e4d28 8037 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8038 if (err)
8039 goto free_msg;
8040
9360ffd1
DM		 8041 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8042 goto nla_put_failure;
7f6cf311
JB		 8043
8044 genlmsg_end(msg, hdr);
8045
8046 return genlmsg_reply(msg, info);
8047
8048 nla_put_failure:
8049 err = -ENOBUFS;
8050 free_msg:
8051 nlmsg_free(msg);
8052 return err;
8053}
8054
5e760230
JB		 8055static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8056{
8057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8058 struct cfg80211_beacon_registration *reg, *nreg;
8059 int rv;
5e760230
JB		 8060
8061 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8062 return -EOPNOTSUPP;
8063
37c73b5f
BG		 8064 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8065 if (!nreg)
8066 return -ENOMEM;
8067
8068 /* First, check if already registered. */
8069 spin_lock_bh(&rdev->beacon_registrations_lock);
8070 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8071 if (reg->nlportid == info->snd_portid) {
8072 rv = -EALREADY;
8073 goto out_err;
8074 }
8075 }
8076 /* Add it to the list */
8077 nreg->nlportid = info->snd_portid;
8078 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8079
37c73b5f 8080 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8081
8082 return 0;
37c73b5f
BG		 8083out_err:
8084 spin_unlock_bh(&rdev->beacon_registrations_lock);
8085 kfree(nreg);
8086 return rv;
5e760230
JB		 8087}
8088
98104fde
JB		 8089static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8090{
8091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8092 struct wireless_dev *wdev = info->user_ptr[1];
8093 int err;
8094
8095 if (!rdev->ops->start_p2p_device)
8096 return -EOPNOTSUPP;
8097
8098 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8099 return -EOPNOTSUPP;
8100
8101 if (wdev->p2p_started)
8102 return 0;
8103
8104 mutex_lock(&rdev->devlist_mtx);
8105 err = cfg80211_can_add_interface(rdev, wdev->iftype);
8106 mutex_unlock(&rdev->devlist_mtx);
8107 if (err)
8108 return err;
8109
eeb126e9 8110 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8111 if (err)
8112 return err;
8113
8114 wdev->p2p_started = true;
8115 mutex_lock(&rdev->devlist_mtx);
8116 rdev->opencount++;
8117 mutex_unlock(&rdev->devlist_mtx);
8118
8119 return 0;
8120}
8121
8122static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8123{
8124 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8125 struct wireless_dev *wdev = info->user_ptr[1];
8126
8127 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8128 return -EOPNOTSUPP;
8129
8130 if (!rdev->ops->stop_p2p_device)
8131 return -EOPNOTSUPP;
8132
8133 if (!wdev->p2p_started)
8134 return 0;
8135
eeb126e9 8136 rdev_stop_p2p_device(rdev, wdev);
98104fde
JB		 8137 wdev->p2p_started = false;
8138
8139 mutex_lock(&rdev->devlist_mtx);
8140 rdev->opencount--;
8141 mutex_unlock(&rdev->devlist_mtx);
8142
8143 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
8144 rdev->scan_req->aborted = true;
8145 ___cfg80211_scan_done(rdev, true);
8146 }
8147
8148 return 0;
8149}
8150
3713b4e3
JB		 8151static int nl80211_get_protocol_features(struct sk_buff *skb,
8152 struct genl_info *info)
8153{
8154 void *hdr;
8155 struct sk_buff *msg;
8156
8157 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8158 if (!msg)
8159 return -ENOMEM;
8160
8161 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8162 NL80211_CMD_GET_PROTOCOL_FEATURES);
8163 if (!hdr)
8164 goto nla_put_failure;
8165
8166 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8167 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8168 goto nla_put_failure;
8169
8170 genlmsg_end(msg, hdr);
8171 return genlmsg_reply(msg, info);
8172
8173 nla_put_failure:
8174 kfree_skb(msg);
8175 return -ENOBUFS;
8176}
8177
355199e0
JM		 8178static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8179{
8180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8181 struct cfg80211_update_ft_ies_params ft_params;
8182 struct net_device *dev = info->user_ptr[1];
8183
8184 if (!rdev->ops->update_ft_ies)
8185 return -EOPNOTSUPP;
8186
8187 if (!info->attrs[NL80211_ATTR_MDID] ||
8188 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8189 return -EINVAL;
8190
8191 memset(&ft_params, 0, sizeof(ft_params));
8192 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8193 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8194 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8195
8196 return rdev_update_ft_ies(rdev, dev, &ft_params);
8197}
8198
4c476991
JB		 8199#define NL80211_FLAG_NEED_WIPHY 0x01
8200#define NL80211_FLAG_NEED_NETDEV 0x02
8201#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8202#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8203#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8204 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8205#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8206/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8207#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8208 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 8209
8210static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8211 struct genl_info *info)
8212{
8213 struct cfg80211_registered_device *rdev;
89a54e48 8214 struct wireless_dev *wdev;
4c476991 8215 struct net_device *dev;
4c476991
JB		 8216 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8217
8218 if (rtnl)
8219 rtnl_lock();
8220
8221 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 8222 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 8223 if (IS_ERR(rdev)) {
8224 if (rtnl)
8225 rtnl_unlock();
8226 return PTR_ERR(rdev);
8227 }
8228 info->user_ptr[0] = rdev;
1bf614ef
JB		 8229 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8230 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 8231 mutex_lock(&cfg80211_mutex);
8232 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8233 info->attrs);
8234 if (IS_ERR(wdev)) {
8235 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 8236 if (rtnl)
8237 rtnl_unlock();
89a54e48 8238 return PTR_ERR(wdev);
4c476991 8239 }
89a54e48 8240
89a54e48
JB		 8241 dev = wdev->netdev;
8242 rdev = wiphy_to_dev(wdev->wiphy);
8243
1bf614ef
JB		 8244 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8245 if (!dev) {
8246 mutex_unlock(&cfg80211_mutex);
8247 if (rtnl)
8248 rtnl_unlock();
8249 return -EINVAL;
8250 }
8251
8252 info->user_ptr[1] = dev;
8253 } else {
8254 info->user_ptr[1] = wdev;
41265714 8255 }
1bf614ef
JB		 8256
8257 if (dev) {
8258 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8259 !netif_running(dev)) {
8260 mutex_unlock(&cfg80211_mutex);
8261 if (rtnl)
8262 rtnl_unlock();
8263 return -ENETDOWN;
8264 }
8265
8266 dev_hold(dev);
98104fde
JB		 8267 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8268 if (!wdev->p2p_started) {
8269 mutex_unlock(&cfg80211_mutex);
8270 if (rtnl)
8271 rtnl_unlock();
8272 return -ENETDOWN;
8273 }
41265714 8274 }
89a54e48 8275
89a54e48
JB		 8276 cfg80211_lock_rdev(rdev);
8277
8278 mutex_unlock(&cfg80211_mutex);
8279
4c476991 8280 info->user_ptr[0] = rdev;
4c476991
JB		 8281 }
8282
8283 return 0;
8284}
8285
8286static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8287 struct genl_info *info)
8288{
8289 if (info->user_ptr[0])
8290 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 8291 if (info->user_ptr[1]) {
8292 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8293 struct wireless_dev *wdev = info->user_ptr[1];
8294
8295 if (wdev->netdev)
8296 dev_put(wdev->netdev);
8297 } else {
8298 dev_put(info->user_ptr[1]);
8299 }
8300 }
4c476991
JB		 8301 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8302 rtnl_unlock();
8303}
8304
55682965
JB		 8305static struct genl_ops nl80211_ops[] = {
8306 {
8307 .cmd = NL80211_CMD_GET_WIPHY,
8308 .doit = nl80211_get_wiphy,
8309 .dumpit = nl80211_dump_wiphy,
8310 .policy = nl80211_policy,
8311 /* can be retrieved by unprivileged users */
4c476991 8312 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 8313 },
8314 {
8315 .cmd = NL80211_CMD_SET_WIPHY,
8316 .doit = nl80211_set_wiphy,
8317 .policy = nl80211_policy,
8318 .flags = GENL_ADMIN_PERM,
4c476991 8319 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 8320 },
8321 {
8322 .cmd = NL80211_CMD_GET_INTERFACE,
8323 .doit = nl80211_get_interface,
8324 .dumpit = nl80211_dump_interface,
8325 .policy = nl80211_policy,
8326 /* can be retrieved by unprivileged users */
72fb2abc 8327 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 8328 },
8329 {
8330 .cmd = NL80211_CMD_SET_INTERFACE,
8331 .doit = nl80211_set_interface,
8332 .policy = nl80211_policy,
8333 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8334 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8335 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8336 },
8337 {
8338 .cmd = NL80211_CMD_NEW_INTERFACE,
8339 .doit = nl80211_new_interface,
8340 .policy = nl80211_policy,
8341 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8342 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8343 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8344 },
8345 {
8346 .cmd = NL80211_CMD_DEL_INTERFACE,
8347 .doit = nl80211_del_interface,
8348 .policy = nl80211_policy,
41ade00f 8349 .flags = GENL_ADMIN_PERM,
84efbb84 8350 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8351 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8352 },
8353 {
8354 .cmd = NL80211_CMD_GET_KEY,
8355 .doit = nl80211_get_key,
8356 .policy = nl80211_policy,
8357 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8358 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8359 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8360 },
8361 {
8362 .cmd = NL80211_CMD_SET_KEY,
8363 .doit = nl80211_set_key,
8364 .policy = nl80211_policy,
8365 .flags = GENL_ADMIN_PERM,
41265714 8366 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8367 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8368 },
8369 {
8370 .cmd = NL80211_CMD_NEW_KEY,
8371 .doit = nl80211_new_key,
8372 .policy = nl80211_policy,
8373 .flags = GENL_ADMIN_PERM,
41265714 8374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8375 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8376 },
8377 {
8378 .cmd = NL80211_CMD_DEL_KEY,
8379 .doit = nl80211_del_key,
8380 .policy = nl80211_policy,
55682965 8381 .flags = GENL_ADMIN_PERM,
41265714 8382 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8383 NL80211_FLAG_NEED_RTNL,
55682965 8384 },
ed1b6cc7
JB		 8385 {
8386 .cmd = NL80211_CMD_SET_BEACON,
8387 .policy = nl80211_policy,
8388 .flags = GENL_ADMIN_PERM,
8860020e 8389 .doit = nl80211_set_beacon,
2b5f8b0b 8390 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8391 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8392 },
8393 {
8860020e 8394 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 8395 .policy = nl80211_policy,
8396 .flags = GENL_ADMIN_PERM,
8860020e 8397 .doit = nl80211_start_ap,
2b5f8b0b 8398 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8399 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8400 },
8401 {
8860020e 8402 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 8403 .policy = nl80211_policy,
8404 .flags = GENL_ADMIN_PERM,
8860020e 8405 .doit = nl80211_stop_ap,
2b5f8b0b 8406 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8407 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 8408 },
5727ef1b
JB		 8409 {
8410 .cmd = NL80211_CMD_GET_STATION,
8411 .doit = nl80211_get_station,
2ec600d6 8412 .dumpit = nl80211_dump_station,
5727ef1b 8413 .policy = nl80211_policy,
4c476991
JB		 8414 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8415 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8416 },
8417 {
8418 .cmd = NL80211_CMD_SET_STATION,
8419 .doit = nl80211_set_station,
8420 .policy = nl80211_policy,
8421 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8422 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8423 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8424 },
8425 {
8426 .cmd = NL80211_CMD_NEW_STATION,
8427 .doit = nl80211_new_station,
8428 .policy = nl80211_policy,
8429 .flags = GENL_ADMIN_PERM,
41265714 8430 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8431 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8432 },
8433 {
8434 .cmd = NL80211_CMD_DEL_STATION,
8435 .doit = nl80211_del_station,
8436 .policy = nl80211_policy,
2ec600d6 8437 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8438 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8439 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8440 },
8441 {
8442 .cmd = NL80211_CMD_GET_MPATH,
8443 .doit = nl80211_get_mpath,
8444 .dumpit = nl80211_dump_mpath,
8445 .policy = nl80211_policy,
8446 .flags = GENL_ADMIN_PERM,
41265714 8447 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8448 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8449 },
8450 {
8451 .cmd = NL80211_CMD_SET_MPATH,
8452 .doit = nl80211_set_mpath,
8453 .policy = nl80211_policy,
8454 .flags = GENL_ADMIN_PERM,
41265714 8455 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8456 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8457 },
8458 {
8459 .cmd = NL80211_CMD_NEW_MPATH,
8460 .doit = nl80211_new_mpath,
8461 .policy = nl80211_policy,
8462 .flags = GENL_ADMIN_PERM,
41265714 8463 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8464 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8465 },
8466 {
8467 .cmd = NL80211_CMD_DEL_MPATH,
8468 .doit = nl80211_del_mpath,
8469 .policy = nl80211_policy,
9f1ba906 8470 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8471 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8472 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 8473 },
8474 {
8475 .cmd = NL80211_CMD_SET_BSS,
8476 .doit = nl80211_set_bss,
8477 .policy = nl80211_policy,
b2e1b302 8478 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8480 NL80211_FLAG_NEED_RTNL,
b2e1b302 8481 },
f130347c
LR		 8482 {
8483 .cmd = NL80211_CMD_GET_REG,
8484 .doit = nl80211_get_reg,
8485 .policy = nl80211_policy,
8486 /* can be retrieved by unprivileged users */
8487 },
b2e1b302
LR		 8488 {
8489 .cmd = NL80211_CMD_SET_REG,
8490 .doit = nl80211_set_reg,
8491 .policy = nl80211_policy,
8492 .flags = GENL_ADMIN_PERM,
8493 },
8494 {
8495 .cmd = NL80211_CMD_REQ_SET_REG,
8496 .doit = nl80211_req_set_reg,
8497 .policy = nl80211_policy,
93da9cc1 8498 .flags = GENL_ADMIN_PERM,
8499 },
8500 {
24bdd9f4
JC		 8501 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8502 .doit = nl80211_get_mesh_config,
93da9cc1 8503 .policy = nl80211_policy,
8504 /* can be retrieved by unprivileged users */
2b5f8b0b 8505 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8506 NL80211_FLAG_NEED_RTNL,
93da9cc1 8507 },
8508 {
24bdd9f4
JC		 8509 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8510 .doit = nl80211_update_mesh_config,
93da9cc1 8511 .policy = nl80211_policy,
9aed3cc1 8512 .flags = GENL_ADMIN_PERM,
29cbe68c 8513 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8514 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8515 },
2a519311
JB		 8516 {
8517 .cmd = NL80211_CMD_TRIGGER_SCAN,
8518 .doit = nl80211_trigger_scan,
8519 .policy = nl80211_policy,
8520 .flags = GENL_ADMIN_PERM,
fd014284 8521 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8522 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8523 },
8524 {
8525 .cmd = NL80211_CMD_GET_SCAN,
8526 .policy = nl80211_policy,
8527 .dumpit = nl80211_dump_scan,
8528 },
807f8a8c
LC		 8529 {
8530 .cmd = NL80211_CMD_START_SCHED_SCAN,
8531 .doit = nl80211_start_sched_scan,
8532 .policy = nl80211_policy,
8533 .flags = GENL_ADMIN_PERM,
8534 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8535 NL80211_FLAG_NEED_RTNL,
8536 },
8537 {
8538 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8539 .doit = nl80211_stop_sched_scan,
8540 .policy = nl80211_policy,
8541 .flags = GENL_ADMIN_PERM,
8542 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8543 NL80211_FLAG_NEED_RTNL,
8544 },
636a5d36
JM		 8545 {
8546 .cmd = NL80211_CMD_AUTHENTICATE,
8547 .doit = nl80211_authenticate,
8548 .policy = nl80211_policy,
8549 .flags = GENL_ADMIN_PERM,
41265714 8550 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8551 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8552 },
8553 {
8554 .cmd = NL80211_CMD_ASSOCIATE,
8555 .doit = nl80211_associate,
8556 .policy = nl80211_policy,
8557 .flags = GENL_ADMIN_PERM,
41265714 8558 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8559 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8560 },
8561 {
8562 .cmd = NL80211_CMD_DEAUTHENTICATE,
8563 .doit = nl80211_deauthenticate,
8564 .policy = nl80211_policy,
8565 .flags = GENL_ADMIN_PERM,
41265714 8566 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8567 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8568 },
8569 {
8570 .cmd = NL80211_CMD_DISASSOCIATE,
8571 .doit = nl80211_disassociate,
8572 .policy = nl80211_policy,
8573 .flags = GENL_ADMIN_PERM,
41265714 8574 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8575 NL80211_FLAG_NEED_RTNL,
636a5d36 8576 },
04a773ad
JB		 8577 {
8578 .cmd = NL80211_CMD_JOIN_IBSS,
8579 .doit = nl80211_join_ibss,
8580 .policy = nl80211_policy,
8581 .flags = GENL_ADMIN_PERM,
41265714 8582 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8583 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 8584 },
8585 {
8586 .cmd = NL80211_CMD_LEAVE_IBSS,
8587 .doit = nl80211_leave_ibss,
8588 .policy = nl80211_policy,
8589 .flags = GENL_ADMIN_PERM,
41265714 8590 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8591 NL80211_FLAG_NEED_RTNL,
04a773ad 8592 },
aff89a9b
JB		 8593#ifdef CONFIG_NL80211_TESTMODE
8594 {
8595 .cmd = NL80211_CMD_TESTMODE,
8596 .doit = nl80211_testmode_do,
71063f0e 8597 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 8598 .policy = nl80211_policy,
8599 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8600 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8601 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 8602 },
8603#endif
b23aa676
SO		 8604 {
8605 .cmd = NL80211_CMD_CONNECT,
8606 .doit = nl80211_connect,
8607 .policy = nl80211_policy,
8608 .flags = GENL_ADMIN_PERM,
41265714 8609 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8610 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 8611 },
8612 {
8613 .cmd = NL80211_CMD_DISCONNECT,
8614 .doit = nl80211_disconnect,
8615 .policy = nl80211_policy,
8616 .flags = GENL_ADMIN_PERM,
41265714 8617 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8618 NL80211_FLAG_NEED_RTNL,
b23aa676 8619 },
463d0183
JB		 8620 {
8621 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8622 .doit = nl80211_wiphy_netns,
8623 .policy = nl80211_policy,
8624 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8625 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8626 NL80211_FLAG_NEED_RTNL,
463d0183 8627 },
61fa713c
HS		 8628 {
8629 .cmd = NL80211_CMD_GET_SURVEY,
8630 .policy = nl80211_policy,
8631 .dumpit = nl80211_dump_survey,
8632 },
67fbb16b
SO		 8633 {
8634 .cmd = NL80211_CMD_SET_PMKSA,
8635 .doit = nl80211_setdel_pmksa,
8636 .policy = nl80211_policy,
8637 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8638 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8639 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8640 },
8641 {
8642 .cmd = NL80211_CMD_DEL_PMKSA,
8643 .doit = nl80211_setdel_pmksa,
8644 .policy = nl80211_policy,
8645 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8646 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8647 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8648 },
8649 {
8650 .cmd = NL80211_CMD_FLUSH_PMKSA,
8651 .doit = nl80211_flush_pmksa,
8652 .policy = nl80211_policy,
8653 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8654 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8655 NL80211_FLAG_NEED_RTNL,
67fbb16b 8656 },
9588bbd5
JM		 8657 {
8658 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8659 .doit = nl80211_remain_on_channel,
8660 .policy = nl80211_policy,
8661 .flags = GENL_ADMIN_PERM,
71bbc994 8662 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8663 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 8664 },
8665 {
8666 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8667 .doit = nl80211_cancel_remain_on_channel,
8668 .policy = nl80211_policy,
8669 .flags = GENL_ADMIN_PERM,
71bbc994 8670 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8671 NL80211_FLAG_NEED_RTNL,
9588bbd5 8672 },
13ae75b1
JM		 8673 {
8674 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8675 .doit = nl80211_set_tx_bitrate_mask,
8676 .policy = nl80211_policy,
8677 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8678 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8679 NL80211_FLAG_NEED_RTNL,
13ae75b1 8680 },
026331c4 8681 {
2e161f78
JB		 8682 .cmd = NL80211_CMD_REGISTER_FRAME,
8683 .doit = nl80211_register_mgmt,
026331c4
JM		 8684 .policy = nl80211_policy,
8685 .flags = GENL_ADMIN_PERM,
71bbc994 8686 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8687 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 8688 },
8689 {
2e161f78
JB		 8690 .cmd = NL80211_CMD_FRAME,
8691 .doit = nl80211_tx_mgmt,
026331c4 8692 .policy = nl80211_policy,
f7ca38df 8693 .flags = GENL_ADMIN_PERM,
71bbc994 8694 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 8695 NL80211_FLAG_NEED_RTNL,
8696 },
8697 {
8698 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8699 .doit = nl80211_tx_mgmt_cancel_wait,
8700 .policy = nl80211_policy,
026331c4 8701 .flags = GENL_ADMIN_PERM,
71bbc994 8702 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8703 NL80211_FLAG_NEED_RTNL,
026331c4 8704 },
ffb9eb3d
KV		 8705 {
8706 .cmd = NL80211_CMD_SET_POWER_SAVE,
8707 .doit = nl80211_set_power_save,
8708 .policy = nl80211_policy,
8709 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8710 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8711 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 8712 },
8713 {
8714 .cmd = NL80211_CMD_GET_POWER_SAVE,
8715 .doit = nl80211_get_power_save,
8716 .policy = nl80211_policy,
8717 /* can be retrieved by unprivileged users */
4c476991
JB		 8718 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8719 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 8720 },
d6dc1a38
JO		 8721 {
8722 .cmd = NL80211_CMD_SET_CQM,
8723 .doit = nl80211_set_cqm,
8724 .policy = nl80211_policy,
8725 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8726 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8727 NL80211_FLAG_NEED_RTNL,
d6dc1a38 8728 },
f444de05
JB		 8729 {
8730 .cmd = NL80211_CMD_SET_CHANNEL,
8731 .doit = nl80211_set_channel,
8732 .policy = nl80211_policy,
8733 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8734 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8735 NL80211_FLAG_NEED_RTNL,
f444de05 8736 },
e8347eba
BJ		 8737 {
8738 .cmd = NL80211_CMD_SET_WDS_PEER,
8739 .doit = nl80211_set_wds_peer,
8740 .policy = nl80211_policy,
8741 .flags = GENL_ADMIN_PERM,
43b19952
JB		 8742 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8743 NL80211_FLAG_NEED_RTNL,
e8347eba 8744 },
29cbe68c
JB		 8745 {
8746 .cmd = NL80211_CMD_JOIN_MESH,
8747 .doit = nl80211_join_mesh,
8748 .policy = nl80211_policy,
8749 .flags = GENL_ADMIN_PERM,
8750 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8751 NL80211_FLAG_NEED_RTNL,
8752 },
8753 {
8754 .cmd = NL80211_CMD_LEAVE_MESH,
8755 .doit = nl80211_leave_mesh,
8756 .policy = nl80211_policy,
8757 .flags = GENL_ADMIN_PERM,
8758 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8759 NL80211_FLAG_NEED_RTNL,
8760 },
dfb89c56 8761#ifdef CONFIG_PM
ff1b6e69
JB		 8762 {
8763 .cmd = NL80211_CMD_GET_WOWLAN,
8764 .doit = nl80211_get_wowlan,
8765 .policy = nl80211_policy,
8766 /* can be retrieved by unprivileged users */
8767 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8768 NL80211_FLAG_NEED_RTNL,
8769 },
8770 {
8771 .cmd = NL80211_CMD_SET_WOWLAN,
8772 .doit = nl80211_set_wowlan,
8773 .policy = nl80211_policy,
8774 .flags = GENL_ADMIN_PERM,
8775 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8776 NL80211_FLAG_NEED_RTNL,
8777 },
dfb89c56 8778#endif
e5497d76
JB		 8779 {
8780 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8781 .doit = nl80211_set_rekey_data,
8782 .policy = nl80211_policy,
8783 .flags = GENL_ADMIN_PERM,
8784 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8785 NL80211_FLAG_NEED_RTNL,
8786 },
109086ce
AN		 8787 {
8788 .cmd = NL80211_CMD_TDLS_MGMT,
8789 .doit = nl80211_tdls_mgmt,
8790 .policy = nl80211_policy,
8791 .flags = GENL_ADMIN_PERM,
8792 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8793 NL80211_FLAG_NEED_RTNL,
8794 },
8795 {
8796 .cmd = NL80211_CMD_TDLS_OPER,
8797 .doit = nl80211_tdls_oper,
8798 .policy = nl80211_policy,
8799 .flags = GENL_ADMIN_PERM,
8800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8801 NL80211_FLAG_NEED_RTNL,
8802 },
28946da7
JB		 8803 {
8804 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8805 .doit = nl80211_register_unexpected_frame,
8806 .policy = nl80211_policy,
8807 .flags = GENL_ADMIN_PERM,
8808 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8809 NL80211_FLAG_NEED_RTNL,
8810 },
7f6cf311
JB		 8811 {
8812 .cmd = NL80211_CMD_PROBE_CLIENT,
8813 .doit = nl80211_probe_client,
8814 .policy = nl80211_policy,
8815 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8816 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 8817 NL80211_FLAG_NEED_RTNL,
8818 },
5e760230
JB		 8819 {
8820 .cmd = NL80211_CMD_REGISTER_BEACONS,
8821 .doit = nl80211_register_beacons,
8822 .policy = nl80211_policy,
8823 .flags = GENL_ADMIN_PERM,
8824 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8825 NL80211_FLAG_NEED_RTNL,
8826 },
1d9d9213
SW		 8827 {
8828 .cmd = NL80211_CMD_SET_NOACK_MAP,
8829 .doit = nl80211_set_noack_map,
8830 .policy = nl80211_policy,
8831 .flags = GENL_ADMIN_PERM,
8832 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8833 NL80211_FLAG_NEED_RTNL,
8834 },
98104fde
JB		 8835 {
8836 .cmd = NL80211_CMD_START_P2P_DEVICE,
8837 .doit = nl80211_start_p2p_device,
8838 .policy = nl80211_policy,
8839 .flags = GENL_ADMIN_PERM,
8840 .internal_flags = NL80211_FLAG_NEED_WDEV |
8841 NL80211_FLAG_NEED_RTNL,
8842 },
8843 {
8844 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8845 .doit = nl80211_stop_p2p_device,
8846 .policy = nl80211_policy,
8847 .flags = GENL_ADMIN_PERM,
8848 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8849 NL80211_FLAG_NEED_RTNL,
8850 },
f4e583c8
AQ		 8851 {
8852 .cmd = NL80211_CMD_SET_MCAST_RATE,
8853 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 8854 .policy = nl80211_policy,
8855 .flags = GENL_ADMIN_PERM,
8856 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8857 NL80211_FLAG_NEED_RTNL,
8858 },
8859 {
8860 .cmd = NL80211_CMD_SET_MAC_ACL,
8861 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 8862 .policy = nl80211_policy,
8863 .flags = GENL_ADMIN_PERM,
8864 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8865 NL80211_FLAG_NEED_RTNL,
8866 },
04f39047
SW		 8867 {
8868 .cmd = NL80211_CMD_RADAR_DETECT,
8869 .doit = nl80211_start_radar_detection,
8870 .policy = nl80211_policy,
8871 .flags = GENL_ADMIN_PERM,
8872 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8873 NL80211_FLAG_NEED_RTNL,
8874 },
3713b4e3
JB		 8875 {
8876 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
8877 .doit = nl80211_get_protocol_features,
8878 .policy = nl80211_policy,
8879 },
355199e0
JM		 8880 {
8881 .cmd = NL80211_CMD_UPDATE_FT_IES,
8882 .doit = nl80211_update_ft_ies,
8883 .policy = nl80211_policy,
8884 .flags = GENL_ADMIN_PERM,
8885 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8886 NL80211_FLAG_NEED_RTNL,
8887 },
55682965 8888};
9588bbd5 8889
6039f6d2
JM		 8890static struct genl_multicast_group nl80211_mlme_mcgrp = {
8891 .name = "mlme",
8892};
55682965
JB		 8893
8894/* multicast groups */
8895static struct genl_multicast_group nl80211_config_mcgrp = {
8896 .name = "config",
8897};
2a519311
JB		 8898static struct genl_multicast_group nl80211_scan_mcgrp = {
8899 .name = "scan",
8900};
73d54c9e
LR		 8901static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8902 .name = "regulatory",
8903};
55682965
JB		 8904
8905/* notification functions */
8906
8907void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8908{
8909 struct sk_buff *msg;
8910
fd2120ca 8911 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 8912 if (!msg)
8913 return;
8914
3713b4e3
JB		 8915 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
8916 false, NULL, NULL, NULL) < 0) {
55682965
JB		 8917 nlmsg_free(msg);
8918 return;
8919 }
8920
463d0183
JB		 8921 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8922 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 8923}
8924
362a415d
JB		 8925static int nl80211_add_scan_req(struct sk_buff *msg,
8926 struct cfg80211_registered_device *rdev)
8927{
8928 struct cfg80211_scan_request *req = rdev->scan_req;
8929 struct nlattr *nest;
8930 int i;
8931
667503dd
JB		 8932 ASSERT_RDEV_LOCK(rdev);
8933
362a415d
JB		 8934 if (WARN_ON(!req))
8935 return 0;
8936
8937 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
8938 if (!nest)
8939 goto nla_put_failure;
9360ffd1
DM		 8940 for (i = 0; i < req->n_ssids; i++) {
8941 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
8942 goto nla_put_failure;
8943 }
362a415d
JB		 8944 nla_nest_end(msg, nest);
8945
8946 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8947 if (!nest)
8948 goto nla_put_failure;
9360ffd1
DM		 8949 for (i = 0; i < req->n_channels; i++) {
8950 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
8951 goto nla_put_failure;
8952 }
362a415d
JB		 8953 nla_nest_end(msg, nest);
8954
9360ffd1
DM		 8955 if (req->ie &&
8956 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
8957 goto nla_put_failure;
362a415d 8958
ed473771
SL		 8959 if (req->flags)
8960 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
8961
362a415d
JB		 8962 return 0;
8963 nla_put_failure:
8964 return -ENOBUFS;
8965}
8966
a538e2d5
JB		 8967static int nl80211_send_scan_msg(struct sk_buff *msg,
8968 struct cfg80211_registered_device *rdev,
fd014284 8969 struct wireless_dev *wdev,
15e47304 8970 u32 portid, u32 seq, int flags,
a538e2d5 8971 u32 cmd)
2a519311
JB		 8972{
8973 void *hdr;
8974
15e47304 8975 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 8976 if (!hdr)
8977 return -1;
8978
9360ffd1 8979 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 8980 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8981 wdev->netdev->ifindex)) ||
8982 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 8983 goto nla_put_failure;
2a519311 8984
362a415d
JB		 8985 /* ignore errors and send incomplete event anyway */
8986 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 8987
8988 return genlmsg_end(msg, hdr);
8989
8990 nla_put_failure:
8991 genlmsg_cancel(msg, hdr);
8992 return -EMSGSIZE;
8993}
8994
807f8a8c
LC		 8995static int
8996nl80211_send_sched_scan_msg(struct sk_buff *msg,
8997 struct cfg80211_registered_device *rdev,
8998 struct net_device *netdev,
15e47304 8999 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9000{
9001 void *hdr;
9002
15e47304 9003 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9004 if (!hdr)
9005 return -1;
9006
9360ffd1
DM		 9007 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9008 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9009 goto nla_put_failure;
807f8a8c
LC		 9010
9011 return genlmsg_end(msg, hdr);
9012
9013 nla_put_failure:
9014 genlmsg_cancel(msg, hdr);
9015 return -EMSGSIZE;
9016}
9017
a538e2d5 9018void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9019 struct wireless_dev *wdev)
a538e2d5
JB		 9020{
9021 struct sk_buff *msg;
9022
58050fce 9023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9024 if (!msg)
9025 return;
9026
fd014284 9027 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9028 NL80211_CMD_TRIGGER_SCAN) < 0) {
9029 nlmsg_free(msg);
9030 return;
9031 }
9032
463d0183
JB		 9033 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9034 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 9035}
9036
2a519311 9037void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9038 struct wireless_dev *wdev)
2a519311
JB		 9039{
9040 struct sk_buff *msg;
9041
fd2120ca 9042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9043 if (!msg)
9044 return;
9045
fd014284 9046 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9047 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9048 nlmsg_free(msg);
9049 return;
9050 }
9051
463d0183
JB		 9052 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9053 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9054}
9055
9056void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9057 struct wireless_dev *wdev)
2a519311
JB		 9058{
9059 struct sk_buff *msg;
9060
fd2120ca 9061 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9062 if (!msg)
9063 return;
9064
fd014284 9065 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9066 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9067 nlmsg_free(msg);
9068 return;
9069 }
9070
463d0183
JB		 9071 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9072 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9073}
9074
807f8a8c
LC		 9075void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9076 struct net_device *netdev)
9077{
9078 struct sk_buff *msg;
9079
9080 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9081 if (!msg)
9082 return;
9083
9084 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9085 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9086 nlmsg_free(msg);
9087 return;
9088 }
9089
9090 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9091 nl80211_scan_mcgrp.id, GFP_KERNEL);
9092}
9093
9094void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9095 struct net_device *netdev, u32 cmd)
9096{
9097 struct sk_buff *msg;
9098
58050fce 9099 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9100 if (!msg)
9101 return;
9102
9103 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9104 nlmsg_free(msg);
9105 return;
9106 }
9107
9108 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9109 nl80211_scan_mcgrp.id, GFP_KERNEL);
9110}
9111
73d54c9e
LR		 9112/*
9113 * This can happen on global regulatory changes or device specific settings
9114 * based on custom world regulatory domains.
9115 */
9116void nl80211_send_reg_change_event(struct regulatory_request *request)
9117{
9118 struct sk_buff *msg;
9119 void *hdr;
9120
fd2120ca 9121 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9122 if (!msg)
9123 return;
9124
9125 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9126 if (!hdr) {
9127 nlmsg_free(msg);
9128 return;
9129 }
9130
9131 /* Userspace can always count this one always being set */
9360ffd1
DM		 9132 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9133 goto nla_put_failure;
9134
9135 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9136 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9137 NL80211_REGDOM_TYPE_WORLD))
9138 goto nla_put_failure;
9139 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9140 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9141 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9142 goto nla_put_failure;
9143 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9144 request->intersect) {
9145 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9146 NL80211_REGDOM_TYPE_INTERSECTION))
9147 goto nla_put_failure;
9148 } else {
9149 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9150 NL80211_REGDOM_TYPE_COUNTRY) ||
9151 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9152 request->alpha2))
9153 goto nla_put_failure;
9154 }
9155
f4173766 9156 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9157 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9158 goto nla_put_failure;
73d54c9e 9159
3b7b72ee 9160 genlmsg_end(msg, hdr);
73d54c9e 9161
bc43b28c 9162 rcu_read_lock();
463d0183 9163 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 9164 GFP_ATOMIC);
9165 rcu_read_unlock();
73d54c9e
LR		 9166
9167 return;
9168
9169nla_put_failure:
9170 genlmsg_cancel(msg, hdr);
9171 nlmsg_free(msg);
9172}
9173
6039f6d2
JM		 9174static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9175 struct net_device *netdev,
9176 const u8 *buf, size_t len,
e6d6e342 9177 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9178{
9179 struct sk_buff *msg;
9180 void *hdr;
9181
e6d6e342 9182 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9183 if (!msg)
9184 return;
9185
9186 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9187 if (!hdr) {
9188 nlmsg_free(msg);
9189 return;
9190 }
9191
9360ffd1
DM		 9192 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9193 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9194 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9195 goto nla_put_failure;
6039f6d2 9196
3b7b72ee 9197 genlmsg_end(msg, hdr);
6039f6d2 9198
463d0183
JB		 9199 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9200 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 9201 return;
9202
9203 nla_put_failure:
9204 genlmsg_cancel(msg, hdr);
9205 nlmsg_free(msg);
9206}
9207
9208void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9209 struct net_device *netdev, const u8 *buf,
9210 size_t len, gfp_t gfp)
6039f6d2
JM		 9211{
9212 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9213 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 9214}
9215
9216void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9217 struct net_device *netdev, const u8 *buf,
e6d6e342 9218 size_t len, gfp_t gfp)
6039f6d2 9219{
e6d6e342
JB		 9220 nl80211_send_mlme_event(rdev, netdev, buf, len,
9221 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 9222}
9223
53b46b84 9224void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9225 struct net_device *netdev, const u8 *buf,
9226 size_t len, gfp_t gfp)
6039f6d2
JM		 9227{
9228 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9229 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 9230}
9231
53b46b84
JM		 9232void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9233 struct net_device *netdev, const u8 *buf,
e6d6e342 9234 size_t len, gfp_t gfp)
6039f6d2
JM		 9235{
9236 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9237 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 9238}
9239
947add36
JB		 9240void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
9241 size_t len)
cf4e594e 9242{
947add36
JB		 9243 struct wireless_dev *wdev = dev->ieee80211_ptr;
9244 struct wiphy *wiphy = wdev->wiphy;
9245 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9246
9247 trace_cfg80211_send_unprot_deauth(dev);
9248 nl80211_send_mlme_event(rdev, dev, buf, len,
9249 NL80211_CMD_UNPROT_DEAUTHENTICATE, GFP_ATOMIC);
cf4e594e 9250}
947add36 9251EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
cf4e594e 9252
947add36
JB		 9253void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
9254 size_t len)
cf4e594e 9255{
947add36
JB		 9256 struct wireless_dev *wdev = dev->ieee80211_ptr;
9257 struct wiphy *wiphy = wdev->wiphy;
9258 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9259
9260 trace_cfg80211_send_unprot_disassoc(dev);
9261 nl80211_send_mlme_event(rdev, dev, buf, len,
9262 NL80211_CMD_UNPROT_DISASSOCIATE, GFP_ATOMIC);
cf4e594e 9263}
947add36 9264EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
cf4e594e 9265
1b06bb40
LR		 9266static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9267 struct net_device *netdev, int cmd,
e6d6e342 9268 const u8 *addr, gfp_t gfp)
1965c853
JM		 9269{
9270 struct sk_buff *msg;
9271 void *hdr;
9272
e6d6e342 9273 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 9274 if (!msg)
9275 return;
9276
9277 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9278 if (!hdr) {
9279 nlmsg_free(msg);
9280 return;
9281 }
9282
9360ffd1
DM		 9283 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9284 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9285 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9286 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9287 goto nla_put_failure;
1965c853 9288
3b7b72ee 9289 genlmsg_end(msg, hdr);
1965c853 9290
463d0183
JB		 9291 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9292 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 9293 return;
9294
9295 nla_put_failure:
9296 genlmsg_cancel(msg, hdr);
9297 nlmsg_free(msg);
9298}
9299
9300void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9301 struct net_device *netdev, const u8 *addr,
9302 gfp_t gfp)
1965c853
JM		 9303{
9304 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 9305 addr, gfp);
1965c853
JM		 9306}
9307
9308void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9309 struct net_device *netdev, const u8 *addr,
9310 gfp_t gfp)
1965c853 9311{
e6d6e342
JB		 9312 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9313 addr, gfp);
1965c853
JM		 9314}
9315
b23aa676
SO		 9316void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9317 struct net_device *netdev, const u8 *bssid,
9318 const u8 *req_ie, size_t req_ie_len,
9319 const u8 *resp_ie, size_t resp_ie_len,
9320 u16 status, gfp_t gfp)
9321{
9322 struct sk_buff *msg;
9323 void *hdr;
9324
58050fce 9325 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9326 if (!msg)
9327 return;
9328
9329 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9330 if (!hdr) {
9331 nlmsg_free(msg);
9332 return;
9333 }
9334
9360ffd1
DM		 9335 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9336 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9337 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9338 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9339 (req_ie &&
9340 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9341 (resp_ie &&
9342 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9343 goto nla_put_failure;
b23aa676 9344
3b7b72ee 9345 genlmsg_end(msg, hdr);
b23aa676 9346
463d0183
JB		 9347 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9348 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9349 return;
9350
9351 nla_put_failure:
9352 genlmsg_cancel(msg, hdr);
9353 nlmsg_free(msg);
9354
9355}
9356
9357void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9358 struct net_device *netdev, const u8 *bssid,
9359 const u8 *req_ie, size_t req_ie_len,
9360 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9361{
9362 struct sk_buff *msg;
9363 void *hdr;
9364
58050fce 9365 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9366 if (!msg)
9367 return;
9368
9369 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9370 if (!hdr) {
9371 nlmsg_free(msg);
9372 return;
9373 }
9374
9360ffd1
DM		 9375 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9376 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9377 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9378 (req_ie &&
9379 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9380 (resp_ie &&
9381 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9382 goto nla_put_failure;
b23aa676 9383
3b7b72ee 9384 genlmsg_end(msg, hdr);
b23aa676 9385
463d0183
JB		 9386 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9387 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9388 return;
9389
9390 nla_put_failure:
9391 genlmsg_cancel(msg, hdr);
9392 nlmsg_free(msg);
9393
9394}
9395
9396void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9397 struct net_device *netdev, u16 reason,
667503dd 9398 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 9399{
9400 struct sk_buff *msg;
9401 void *hdr;
9402
58050fce 9403 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 9404 if (!msg)
9405 return;
9406
9407 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9408 if (!hdr) {
9409 nlmsg_free(msg);
9410 return;
9411 }
9412
9360ffd1
DM		 9413 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9414 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9415 (from_ap && reason &&
9416 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9417 (from_ap &&
9418 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9419 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9420 goto nla_put_failure;
b23aa676 9421
3b7b72ee 9422 genlmsg_end(msg, hdr);
b23aa676 9423
463d0183
JB		 9424 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9425 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 9426 return;
9427
9428 nla_put_failure:
9429 genlmsg_cancel(msg, hdr);
9430 nlmsg_free(msg);
9431
9432}
9433
04a773ad
JB		 9434void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9435 struct net_device *netdev, const u8 *bssid,
9436 gfp_t gfp)
9437{
9438 struct sk_buff *msg;
9439 void *hdr;
9440
fd2120ca 9441 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 9442 if (!msg)
9443 return;
9444
9445 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9446 if (!hdr) {
9447 nlmsg_free(msg);
9448 return;
9449 }
9450
9360ffd1
DM		 9451 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9452 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9453 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9454 goto nla_put_failure;
04a773ad 9455
3b7b72ee 9456 genlmsg_end(msg, hdr);
04a773ad 9457
463d0183
JB		 9458 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9459 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 9460 return;
9461
9462 nla_put_failure:
9463 genlmsg_cancel(msg, hdr);
9464 nlmsg_free(msg);
9465}
9466
947add36
JB		 9467void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9468 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 9469{
947add36
JB		 9470 struct wireless_dev *wdev = dev->ieee80211_ptr;
9471 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 9472 struct sk_buff *msg;
9473 void *hdr;
9474
947add36
JB		 9475 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9476 return;
9477
9478 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9479
c93b5e71
JC		 9480 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9481 if (!msg)
9482 return;
9483
9484 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9485 if (!hdr) {
9486 nlmsg_free(msg);
9487 return;
9488 }
9489
9360ffd1 9490 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 9491 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9492 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 9493 (ie_len && ie &&
9494 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9495 goto nla_put_failure;
c93b5e71 9496
3b7b72ee 9497 genlmsg_end(msg, hdr);
c93b5e71
JC		 9498
9499 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9500 nl80211_mlme_mcgrp.id, gfp);
9501 return;
9502
9503 nla_put_failure:
9504 genlmsg_cancel(msg, hdr);
9505 nlmsg_free(msg);
9506}
947add36 9507EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 9508
a3b8b056
JM		 9509void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9510 struct net_device *netdev, const u8 *addr,
9511 enum nl80211_key_type key_type, int key_id,
e6d6e342 9512 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9513{
9514 struct sk_buff *msg;
9515 void *hdr;
9516
e6d6e342 9517 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9518 if (!msg)
9519 return;
9520
9521 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9522 if (!hdr) {
9523 nlmsg_free(msg);
9524 return;
9525 }
9526
9360ffd1
DM		 9527 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9528 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9529 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9530 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9531 (key_id != -1 &&
9532 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9533 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9534 goto nla_put_failure;
a3b8b056 9535
3b7b72ee 9536 genlmsg_end(msg, hdr);
a3b8b056 9537
463d0183
JB		 9538 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9539 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 9540 return;
9541
9542 nla_put_failure:
9543 genlmsg_cancel(msg, hdr);
9544 nlmsg_free(msg);
9545}
9546
6bad8766
LR		 9547void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9548 struct ieee80211_channel *channel_before,
9549 struct ieee80211_channel *channel_after)
9550{
9551 struct sk_buff *msg;
9552 void *hdr;
9553 struct nlattr *nl_freq;
9554
fd2120ca 9555 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 9556 if (!msg)
9557 return;
9558
9559 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9560 if (!hdr) {
9561 nlmsg_free(msg);
9562 return;
9563 }
9564
9565 /*
9566 * Since we are applying the beacon hint to a wiphy we know its
9567 * wiphy_idx is valid
9568 */
9360ffd1
DM		 9569 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9570 goto nla_put_failure;
6bad8766
LR		 9571
9572 /* Before */
9573 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9574 if (!nl_freq)
9575 goto nla_put_failure;
cdc89b97 9576 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 9577 goto nla_put_failure;
9578 nla_nest_end(msg, nl_freq);
9579
9580 /* After */
9581 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9582 if (!nl_freq)
9583 goto nla_put_failure;
cdc89b97 9584 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 9585 goto nla_put_failure;
9586 nla_nest_end(msg, nl_freq);
9587
3b7b72ee 9588 genlmsg_end(msg, hdr);
6bad8766 9589
463d0183
JB		 9590 rcu_read_lock();
9591 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9592 GFP_ATOMIC);
9593 rcu_read_unlock();
6bad8766
LR		 9594
9595 return;
9596
9597nla_put_failure:
9598 genlmsg_cancel(msg, hdr);
9599 nlmsg_free(msg);
9600}
9601
9588bbd5
JM		 9602static void nl80211_send_remain_on_chan_event(
9603 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 9604 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9605 struct ieee80211_channel *chan,
9588bbd5
JM		 9606 unsigned int duration, gfp_t gfp)
9607{
9608 struct sk_buff *msg;
9609 void *hdr;
9610
9611 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9612 if (!msg)
9613 return;
9614
9615 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9616 if (!hdr) {
9617 nlmsg_free(msg);
9618 return;
9619 }
9620
9360ffd1 9621 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9622 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9623 wdev->netdev->ifindex)) ||
00f53350 9624 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 9625 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 9626 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9627 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 9628 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9629 goto nla_put_failure;
9588bbd5 9630
9360ffd1
DM		 9631 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9632 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9633 goto nla_put_failure;
9588bbd5 9634
3b7b72ee 9635 genlmsg_end(msg, hdr);
9588bbd5
JM		 9636
9637 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9638 nl80211_mlme_mcgrp.id, gfp);
9639 return;
9640
9641 nla_put_failure:
9642 genlmsg_cancel(msg, hdr);
9643 nlmsg_free(msg);
9644}
9645
947add36
JB		 9646void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9647 struct ieee80211_channel *chan,
9648 unsigned int duration, gfp_t gfp)
9588bbd5 9649{
947add36
JB		 9650 struct wiphy *wiphy = wdev->wiphy;
9651 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9652
9653 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 9654 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 9655 rdev, wdev, cookie, chan,
42d97a59 9656 duration, gfp);
9588bbd5 9657}
947add36 9658EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 9659
947add36
JB		 9660void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9661 struct ieee80211_channel *chan,
9662 gfp_t gfp)
9588bbd5 9663{
947add36
JB		 9664 struct wiphy *wiphy = wdev->wiphy;
9665 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9666
9667 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 9668 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 9669 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 9670}
947add36 9671EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 9672
947add36
JB		 9673void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9674 struct station_info *sinfo, gfp_t gfp)
98b62183 9675{
947add36
JB		 9676 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9677 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 9678 struct sk_buff *msg;
9679
947add36
JB		 9680 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9681
58050fce 9682 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 9683 if (!msg)
9684 return;
9685
66266b3a
JL		 9686 if (nl80211_send_station(msg, 0, 0, 0,
9687 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 9688 nlmsg_free(msg);
9689 return;
9690 }
9691
9692 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9693 nl80211_mlme_mcgrp.id, gfp);
9694}
947add36 9695EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 9696
947add36 9697void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 9698{
947add36
JB		 9699 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9700 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 9701 struct sk_buff *msg;
9702 void *hdr;
9703
947add36
JB		 9704 trace_cfg80211_del_sta(dev, mac_addr);
9705
58050fce 9706 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 9707 if (!msg)
9708 return;
9709
9710 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9711 if (!hdr) {
9712 nlmsg_free(msg);
9713 return;
9714 }
9715
9360ffd1
DM		 9716 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9717 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9718 goto nla_put_failure;
ec15e68b 9719
3b7b72ee 9720 genlmsg_end(msg, hdr);
ec15e68b
JM		 9721
9722 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9723 nl80211_mlme_mcgrp.id, gfp);
9724 return;
9725
9726 nla_put_failure:
9727 genlmsg_cancel(msg, hdr);
9728 nlmsg_free(msg);
9729}
947add36 9730EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 9731
947add36
JB		 9732void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
9733 enum nl80211_connect_failed_reason reason,
9734 gfp_t gfp)
ed44a951 9735{
947add36
JB		 9736 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9737 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 9738 struct sk_buff *msg;
9739 void *hdr;
9740
9741 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9742 if (!msg)
9743 return;
9744
9745 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9746 if (!hdr) {
9747 nlmsg_free(msg);
9748 return;
9749 }
9750
9751 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9752 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9753 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9754 goto nla_put_failure;
9755
9756 genlmsg_end(msg, hdr);
9757
9758 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9759 nl80211_mlme_mcgrp.id, gfp);
9760 return;
9761
9762 nla_put_failure:
9763 genlmsg_cancel(msg, hdr);
9764 nlmsg_free(msg);
9765}
947add36 9766EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 9767
b92ab5d8
JB		 9768static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9769 const u8 *addr, gfp_t gfp)
28946da7
JB		 9770{
9771 struct wireless_dev *wdev = dev->ieee80211_ptr;
9772 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9773 struct sk_buff *msg;
9774 void *hdr;
9775 int err;
15e47304 9776 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 9777
15e47304 9778 if (!nlportid)
28946da7
JB		 9779 return false;
9780
9781 msg = nlmsg_new(100, gfp);
9782 if (!msg)
9783 return true;
9784
b92ab5d8 9785 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 9786 if (!hdr) {
9787 nlmsg_free(msg);
9788 return true;
9789 }
9790
9360ffd1
DM		 9791 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9792 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9793 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9794 goto nla_put_failure;
28946da7
JB		 9795
9796 err = genlmsg_end(msg, hdr);
9797 if (err < 0) {
9798 nlmsg_free(msg);
9799 return true;
9800 }
9801
15e47304 9802 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 9803 return true;
9804
9805 nla_put_failure:
9806 genlmsg_cancel(msg, hdr);
9807 nlmsg_free(msg);
9808 return true;
9809}
9810
947add36
JB		 9811bool cfg80211_rx_spurious_frame(struct net_device *dev,
9812 const u8 *addr, gfp_t gfp)
b92ab5d8 9813{
947add36
JB		 9814 struct wireless_dev *wdev = dev->ieee80211_ptr;
9815 bool ret;
9816
9817 trace_cfg80211_rx_spurious_frame(dev, addr);
9818
9819 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9820 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
9821 trace_cfg80211_return_bool(false);
9822 return false;
9823 }
9824 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9825 addr, gfp);
9826 trace_cfg80211_return_bool(ret);
9827 return ret;
b92ab5d8 9828}
947add36 9829EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 9830
947add36
JB		 9831bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
9832 const u8 *addr, gfp_t gfp)
b92ab5d8 9833{
947add36
JB		 9834 struct wireless_dev *wdev = dev->ieee80211_ptr;
9835 bool ret;
9836
9837 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
9838
9839 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9840 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
9841 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
9842 trace_cfg80211_return_bool(false);
9843 return false;
9844 }
9845 ret = __nl80211_unexpected_frame(dev,
9846 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9847 addr, gfp);
9848 trace_cfg80211_return_bool(ret);
9849 return ret;
b92ab5d8 9850}
947add36 9851EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 9852
2e161f78 9853int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 9854 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 9855 int freq, int sig_dbm,
9856 const u8 *buf, size_t len, gfp_t gfp)
026331c4 9857{
71bbc994 9858 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9859 struct sk_buff *msg;
9860 void *hdr;
026331c4
JM		 9861
9862 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9863 if (!msg)
9864 return -ENOMEM;
9865
2e161f78 9866 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 9867 if (!hdr) {
9868 nlmsg_free(msg);
9869 return -ENOMEM;
9870 }
9871
9360ffd1 9872 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9873 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9874 netdev->ifindex)) ||
9360ffd1
DM		 9875 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9876 (sig_dbm &&
9877 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9878 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9879 goto nla_put_failure;
026331c4 9880
3b7b72ee 9881 genlmsg_end(msg, hdr);
026331c4 9882
15e47304 9883 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 9884
9885 nla_put_failure:
9886 genlmsg_cancel(msg, hdr);
9887 nlmsg_free(msg);
9888 return -ENOBUFS;
9889}
9890
947add36
JB		 9891void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
9892 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 9893{
947add36
JB		 9894 struct wiphy *wiphy = wdev->wiphy;
9895 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 9896 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9897 struct sk_buff *msg;
9898 void *hdr;
9899
947add36
JB		 9900 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
9901
026331c4
JM		 9902 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9903 if (!msg)
9904 return;
9905
2e161f78 9906 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 9907 if (!hdr) {
9908 nlmsg_free(msg);
9909 return;
9910 }
9911
9360ffd1 9912 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9913 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9914 netdev->ifindex)) ||
9360ffd1
DM		 9915 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9916 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9917 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9918 goto nla_put_failure;
026331c4 9919
3b7b72ee 9920 genlmsg_end(msg, hdr);
026331c4
JM		 9921
9922 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9923 return;
9924
9925 nla_put_failure:
9926 genlmsg_cancel(msg, hdr);
9927 nlmsg_free(msg);
9928}
947add36 9929EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 9930
947add36
JB		 9931void cfg80211_cqm_rssi_notify(struct net_device *dev,
9932 enum nl80211_cqm_rssi_threshold_event rssi_event,
9933 gfp_t gfp)
d6dc1a38 9934{
947add36
JB		 9935 struct wireless_dev *wdev = dev->ieee80211_ptr;
9936 struct wiphy *wiphy = wdev->wiphy;
9937 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 9938 struct sk_buff *msg;
9939 struct nlattr *pinfoattr;
9940 void *hdr;
9941
947add36
JB		 9942 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
9943
58050fce 9944 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 9945 if (!msg)
9946 return;
9947
9948 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9949 if (!hdr) {
9950 nlmsg_free(msg);
9951 return;
9952 }
9953
9360ffd1 9954 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 9955 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 9956 goto nla_put_failure;
d6dc1a38
JO		 9957
9958 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9959 if (!pinfoattr)
9960 goto nla_put_failure;
9961
9360ffd1
DM		 9962 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
9963 rssi_event))
9964 goto nla_put_failure;
d6dc1a38
JO		 9965
9966 nla_nest_end(msg, pinfoattr);
9967
3b7b72ee 9968 genlmsg_end(msg, hdr);
d6dc1a38
JO		 9969
9970 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9971 nl80211_mlme_mcgrp.id, gfp);
9972 return;
9973
9974 nla_put_failure:
9975 genlmsg_cancel(msg, hdr);
9976 nlmsg_free(msg);
9977}
947add36 9978EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 9979
947add36
JB		 9980static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
9981 struct net_device *netdev, const u8 *bssid,
9982 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 9983{
9984 struct sk_buff *msg;
9985 struct nlattr *rekey_attr;
9986 void *hdr;
9987
58050fce 9988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 9989 if (!msg)
9990 return;
9991
9992 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
9993 if (!hdr) {
9994 nlmsg_free(msg);
9995 return;
9996 }
9997
9360ffd1
DM		 9998 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9999 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10000 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10001 goto nla_put_failure;
e5497d76
JB		 10002
10003 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10004 if (!rekey_attr)
10005 goto nla_put_failure;
10006
9360ffd1
DM		 10007 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10008 NL80211_REPLAY_CTR_LEN, replay_ctr))
10009 goto nla_put_failure;
e5497d76
JB		 10010
10011 nla_nest_end(msg, rekey_attr);
10012
3b7b72ee 10013 genlmsg_end(msg, hdr);
e5497d76
JB		 10014
10015 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10016 nl80211_mlme_mcgrp.id, gfp);
10017 return;
10018
10019 nla_put_failure:
10020 genlmsg_cancel(msg, hdr);
10021 nlmsg_free(msg);
10022}
10023
947add36
JB		 10024void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10025 const u8 *replay_ctr, gfp_t gfp)
10026{
10027 struct wireless_dev *wdev = dev->ieee80211_ptr;
10028 struct wiphy *wiphy = wdev->wiphy;
10029 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10030
10031 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10032 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10033}
10034EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10035
10036static void
10037nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10038 struct net_device *netdev, int index,
10039 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10040{
10041 struct sk_buff *msg;
10042 struct nlattr *attr;
10043 void *hdr;
10044
58050fce 10045 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10046 if (!msg)
10047 return;
10048
10049 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10050 if (!hdr) {
10051 nlmsg_free(msg);
10052 return;
10053 }
10054
9360ffd1
DM		 10055 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10056 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10057 goto nla_put_failure;
c9df56b4
JM		 10058
10059 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10060 if (!attr)
10061 goto nla_put_failure;
10062
9360ffd1
DM		 10063 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10064 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10065 (preauth &&
10066 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10067 goto nla_put_failure;
c9df56b4
JM		 10068
10069 nla_nest_end(msg, attr);
10070
3b7b72ee 10071 genlmsg_end(msg, hdr);
c9df56b4
JM		 10072
10073 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10074 nl80211_mlme_mcgrp.id, gfp);
10075 return;
10076
10077 nla_put_failure:
10078 genlmsg_cancel(msg, hdr);
10079 nlmsg_free(msg);
10080}
10081
947add36
JB		 10082void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10083 const u8 *bssid, bool preauth, gfp_t gfp)
10084{
10085 struct wireless_dev *wdev = dev->ieee80211_ptr;
10086 struct wiphy *wiphy = wdev->wiphy;
10087 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10088
10089 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10090 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10091}
10092EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10093
10094static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10095 struct net_device *netdev,
10096 struct cfg80211_chan_def *chandef,
10097 gfp_t gfp)
5314526b
TP		 10098{
10099 struct sk_buff *msg;
10100 void *hdr;
10101
58050fce 10102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10103 if (!msg)
10104 return;
10105
10106 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10107 if (!hdr) {
10108 nlmsg_free(msg);
10109 return;
10110 }
10111
683b6d3b
JB		 10112 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10113 goto nla_put_failure;
10114
10115 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10116 goto nla_put_failure;
5314526b
TP		 10117
10118 genlmsg_end(msg, hdr);
10119
10120 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10121 nl80211_mlme_mcgrp.id, gfp);
10122 return;
10123
10124 nla_put_failure:
10125 genlmsg_cancel(msg, hdr);
10126 nlmsg_free(msg);
10127}
10128
947add36
JB		 10129void cfg80211_ch_switch_notify(struct net_device *dev,
10130 struct cfg80211_chan_def *chandef)
84f10708 10131{
947add36
JB		 10132 struct wireless_dev *wdev = dev->ieee80211_ptr;
10133 struct wiphy *wiphy = wdev->wiphy;
10134 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10135
10136 trace_cfg80211_ch_switch_notify(dev, chandef);
10137
10138 wdev_lock(wdev);
10139
10140 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10141 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10142 goto out;
10143
10144 wdev->channel = chandef->chan;
10145 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10146out:
10147 wdev_unlock(wdev);
10148 return;
10149}
10150EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10151
10152void cfg80211_cqm_txe_notify(struct net_device *dev,
10153 const u8 *peer, u32 num_packets,
10154 u32 rate, u32 intvl, 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);
84f10708
TP		 10159 struct sk_buff *msg;
10160 struct nlattr *pinfoattr;
10161 void *hdr;
10162
10163 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10164 if (!msg)
10165 return;
10166
10167 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10168 if (!hdr) {
10169 nlmsg_free(msg);
10170 return;
10171 }
10172
10173 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10174 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10175 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10176 goto nla_put_failure;
10177
10178 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10179 if (!pinfoattr)
10180 goto nla_put_failure;
10181
10182 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10183 goto nla_put_failure;
10184
10185 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10186 goto nla_put_failure;
10187
10188 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10189 goto nla_put_failure;
10190
10191 nla_nest_end(msg, pinfoattr);
10192
10193 genlmsg_end(msg, hdr);
10194
10195 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10196 nl80211_mlme_mcgrp.id, gfp);
10197 return;
10198
10199 nla_put_failure:
10200 genlmsg_cancel(msg, hdr);
10201 nlmsg_free(msg);
10202}
947add36 10203EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 10204
04f39047
SW		 10205void
10206nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10207 struct cfg80211_chan_def *chandef,
10208 enum nl80211_radar_event event,
10209 struct net_device *netdev, gfp_t gfp)
10210{
10211 struct sk_buff *msg;
10212 void *hdr;
10213
10214 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10215 if (!msg)
10216 return;
10217
10218 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10219 if (!hdr) {
10220 nlmsg_free(msg);
10221 return;
10222 }
10223
10224 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10225 goto nla_put_failure;
10226
10227 /* NOP and radar events don't need a netdev parameter */
10228 if (netdev) {
10229 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10230
10231 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10232 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10233 goto nla_put_failure;
10234 }
10235
10236 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10237 goto nla_put_failure;
10238
10239 if (nl80211_send_chandef(msg, chandef))
10240 goto nla_put_failure;
10241
10242 if (genlmsg_end(msg, hdr) < 0) {
10243 nlmsg_free(msg);
10244 return;
10245 }
10246
10247 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10248 nl80211_mlme_mcgrp.id, gfp);
10249 return;
10250
10251 nla_put_failure:
10252 genlmsg_cancel(msg, hdr);
10253 nlmsg_free(msg);
10254}
10255
947add36
JB		 10256void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10257 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 10258{
947add36
JB		 10259 struct wireless_dev *wdev = dev->ieee80211_ptr;
10260 struct wiphy *wiphy = wdev->wiphy;
10261 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 10262 struct sk_buff *msg;
10263 struct nlattr *pinfoattr;
10264 void *hdr;
10265
947add36
JB		 10266 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10267
58050fce 10268 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 10269 if (!msg)
10270 return;
10271
10272 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10273 if (!hdr) {
10274 nlmsg_free(msg);
10275 return;
10276 }
10277
9360ffd1 10278 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10279 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 10280 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10281 goto nla_put_failure;
c063dbf5
JB		 10282
10283 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10284 if (!pinfoattr)
10285 goto nla_put_failure;
10286
9360ffd1
DM		 10287 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10288 goto nla_put_failure;
c063dbf5
JB		 10289
10290 nla_nest_end(msg, pinfoattr);
10291
3b7b72ee 10292 genlmsg_end(msg, hdr);
c063dbf5
JB		 10293
10294 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10295 nl80211_mlme_mcgrp.id, gfp);
10296 return;
10297
10298 nla_put_failure:
10299 genlmsg_cancel(msg, hdr);
10300 nlmsg_free(msg);
10301}
947add36 10302EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 10303
7f6cf311
JB		 10304void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10305 u64 cookie, bool acked, gfp_t gfp)
10306{
10307 struct wireless_dev *wdev = dev->ieee80211_ptr;
10308 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10309 struct sk_buff *msg;
10310 void *hdr;
10311 int err;
10312
4ee3e063
BL		 10313 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10314
58050fce 10315 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 10316
7f6cf311
JB		 10317 if (!msg)
10318 return;
10319
10320 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10321 if (!hdr) {
10322 nlmsg_free(msg);
10323 return;
10324 }
10325
9360ffd1
DM		 10326 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10327 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10328 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10329 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10330 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10331 goto nla_put_failure;
7f6cf311
JB		 10332
10333 err = genlmsg_end(msg, hdr);
10334 if (err < 0) {
10335 nlmsg_free(msg);
10336 return;
10337 }
10338
10339 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10340 nl80211_mlme_mcgrp.id, gfp);
10341 return;
10342
10343 nla_put_failure:
10344 genlmsg_cancel(msg, hdr);
10345 nlmsg_free(msg);
10346}
10347EXPORT_SYMBOL(cfg80211_probe_status);
10348
5e760230
JB		 10349void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10350 const u8 *frame, size_t len,
37c73b5f 10351 int freq, int sig_dbm)
5e760230
JB		 10352{
10353 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10354 struct sk_buff *msg;
10355 void *hdr;
37c73b5f 10356 struct cfg80211_beacon_registration *reg;
5e760230 10357
4ee3e063
BL		 10358 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10359
37c73b5f
BG		 10360 spin_lock_bh(&rdev->beacon_registrations_lock);
10361 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10362 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10363 if (!msg) {
10364 spin_unlock_bh(&rdev->beacon_registrations_lock);
10365 return;
10366 }
5e760230 10367
37c73b5f
BG		 10368 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10369 if (!hdr)
10370 goto nla_put_failure;
5e760230 10371
37c73b5f
BG		 10372 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10373 (freq &&
10374 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10375 (sig_dbm &&
10376 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10377 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10378 goto nla_put_failure;
5e760230 10379
37c73b5f 10380 genlmsg_end(msg, hdr);
5e760230 10381
37c73b5f
BG		 10382 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10383 }
10384 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10385 return;
10386
10387 nla_put_failure:
37c73b5f
BG		 10388 spin_unlock_bh(&rdev->beacon_registrations_lock);
10389 if (hdr)
10390 genlmsg_cancel(msg, hdr);
5e760230
JB		 10391 nlmsg_free(msg);
10392}
10393EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10394
cd8f7cb4
JB		 10395#ifdef CONFIG_PM
10396void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10397 struct cfg80211_wowlan_wakeup *wakeup,
10398 gfp_t gfp)
10399{
10400 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10401 struct sk_buff *msg;
10402 void *hdr;
10403 int err, size = 200;
10404
10405 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10406
10407 if (wakeup)
10408 size += wakeup->packet_present_len;
10409
10410 msg = nlmsg_new(size, gfp);
10411 if (!msg)
10412 return;
10413
10414 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10415 if (!hdr)
10416 goto free_msg;
10417
10418 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10419 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10420 goto free_msg;
10421
10422 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10423 wdev->netdev->ifindex))
10424 goto free_msg;
10425
10426 if (wakeup) {
10427 struct nlattr *reasons;
10428
10429 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10430
10431 if (wakeup->disconnect &&
10432 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10433 goto free_msg;
10434 if (wakeup->magic_pkt &&
10435 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10436 goto free_msg;
10437 if (wakeup->gtk_rekey_failure &&
10438 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10439 goto free_msg;
10440 if (wakeup->eap_identity_req &&
10441 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10442 goto free_msg;
10443 if (wakeup->four_way_handshake &&
10444 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10445 goto free_msg;
10446 if (wakeup->rfkill_release &&
10447 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10448 goto free_msg;
10449
10450 if (wakeup->pattern_idx >= 0 &&
10451 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10452 wakeup->pattern_idx))
10453 goto free_msg;
10454
2a0e047e
JB		 10455 if (wakeup->tcp_match)
10456 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10457
10458 if (wakeup->tcp_connlost)
10459 nla_put_flag(msg,
10460 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10461
10462 if (wakeup->tcp_nomoretokens)
10463 nla_put_flag(msg,
10464 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10465
cd8f7cb4
JB		 10466 if (wakeup->packet) {
10467 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10468 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10469
10470 if (!wakeup->packet_80211) {
10471 pkt_attr =
10472 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10473 len_attr =
10474 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10475 }
10476
10477 if (wakeup->packet_len &&
10478 nla_put_u32(msg, len_attr, wakeup->packet_len))
10479 goto free_msg;
10480
10481 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10482 wakeup->packet))
10483 goto free_msg;
10484 }
10485
10486 nla_nest_end(msg, reasons);
10487 }
10488
10489 err = genlmsg_end(msg, hdr);
10490 if (err < 0)
10491 goto free_msg;
10492
10493 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10494 nl80211_mlme_mcgrp.id, gfp);
10495 return;
10496
10497 free_msg:
10498 nlmsg_free(msg);
10499}
10500EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10501#endif
10502
3475b094
JM		 10503void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10504 enum nl80211_tdls_operation oper,
10505 u16 reason_code, gfp_t gfp)
10506{
10507 struct wireless_dev *wdev = dev->ieee80211_ptr;
10508 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10509 struct sk_buff *msg;
10510 void *hdr;
10511 int err;
10512
10513 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10514 reason_code);
10515
10516 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10517 if (!msg)
10518 return;
10519
10520 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10521 if (!hdr) {
10522 nlmsg_free(msg);
10523 return;
10524 }
10525
10526 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10527 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10528 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10529 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10530 (reason_code > 0 &&
10531 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10532 goto nla_put_failure;
10533
10534 err = genlmsg_end(msg, hdr);
10535 if (err < 0) {
10536 nlmsg_free(msg);
10537 return;
10538 }
10539
10540 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10541 nl80211_mlme_mcgrp.id, gfp);
10542 return;
10543
10544 nla_put_failure:
10545 genlmsg_cancel(msg, hdr);
10546 nlmsg_free(msg);
10547}
10548EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10549
026331c4
JM		 10550static int nl80211_netlink_notify(struct notifier_block * nb,
10551 unsigned long state,
10552 void *_notify)
10553{
10554 struct netlink_notify *notify = _notify;
10555 struct cfg80211_registered_device *rdev;
10556 struct wireless_dev *wdev;
37c73b5f 10557 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 10558
10559 if (state != NETLINK_URELEASE)
10560 return NOTIFY_DONE;
10561
10562 rcu_read_lock();
10563
5e760230 10564 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 10565 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 10566 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 10567
10568 spin_lock_bh(&rdev->beacon_registrations_lock);
10569 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10570 list) {
10571 if (reg->nlportid == notify->portid) {
10572 list_del(&reg->list);
10573 kfree(reg);
10574 break;
10575 }
10576 }
10577 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 10578 }
026331c4
JM		 10579
10580 rcu_read_unlock();
10581
10582 return NOTIFY_DONE;
10583}
10584
10585static struct notifier_block nl80211_netlink_notifier = {
10586 .notifier_call = nl80211_netlink_notify,
10587};
10588
355199e0
JM		 10589void cfg80211_ft_event(struct net_device *netdev,
10590 struct cfg80211_ft_event_params *ft_event)
10591{
10592 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10593 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10594 struct sk_buff *msg;
10595 void *hdr;
10596 int err;
10597
10598 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10599
10600 if (!ft_event->target_ap)
10601 return;
10602
10603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10604 if (!msg)
10605 return;
10606
10607 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10608 if (!hdr) {
10609 nlmsg_free(msg);
10610 return;
10611 }
10612
10613 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10614 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10615 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10616 if (ft_event->ies)
10617 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10618 if (ft_event->ric_ies)
10619 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10620 ft_event->ric_ies);
10621
10622 err = genlmsg_end(msg, hdr);
10623 if (err < 0) {
10624 nlmsg_free(msg);
10625 return;
10626 }
10627
10628 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10629 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10630}
10631EXPORT_SYMBOL(cfg80211_ft_event);
10632
55682965
JB		 10633/* initialisation/exit functions */
10634
10635int nl80211_init(void)
10636{
0d63cbb5 10637 int err;
55682965 10638
0d63cbb5
MM		 10639 err = genl_register_family_with_ops(&nl80211_fam,
10640 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 10641 if (err)
10642 return err;
10643
55682965
JB		 10644 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10645 if (err)
10646 goto err_out;
10647
2a519311
JB		 10648 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10649 if (err)
10650 goto err_out;
10651
73d54c9e
LR		 10652 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10653 if (err)
10654 goto err_out;
10655
6039f6d2
JM		 10656 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10657 if (err)
10658 goto err_out;
10659
aff89a9b
JB		 10660#ifdef CONFIG_NL80211_TESTMODE
10661 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10662 if (err)
10663 goto err_out;
10664#endif
10665
026331c4
JM		 10666 err = netlink_register_notifier(&nl80211_netlink_notifier);
10667 if (err)
10668 goto err_out;
10669
55682965
JB		 10670 return 0;
10671 err_out:
10672 genl_unregister_family(&nl80211_fam);
10673 return err;
10674}
10675
10676void nl80211_exit(void)
10677{
026331c4 10678 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 10679 genl_unregister_family(&nl80211_fam);
10680}
Linux kernel - Deliverables
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